WO2023229003A1 - Air conditioning system - Google Patents

Abstract

Provided is an energy-saving air conditioning system, wherein: an air conditioner and an intake port C are provided in a space A; a blowout port 42 is provided in a space B; an air-return part 85 forming an air-return path from the space B towards the space A is provided between the space A and the space B; the intake port C, blowers 55, 56, and the blowout port 42 are linked by an air-supply path; air suctioned in at the intake port C is blown out from the blowout port 42 by the blowers 55, 56; the intake port C is provided below the air conditioner; the temperature and airflow of the blowout airflow of the air conditioner are adjusted by setting the room temperature of the space A and the operation mode, temperature setting, and airflow of the air conditioner; the angle of the blowout airflow of the air conditioner is adjusted by setting airflow-directing louvers 145, 146 of the air conditioner; the temperature of a room in which the air conditioner is not installed can also be adjusted by adjusting the amount of air that is blown by the blowers 55, 56 and adjusting the temperature of the air suctioned in at the intake port C; and the air quality can be improved by implementing air purification and heat exchange ventilation together.

Description

air conditioning system

The present invention relates to a system for air conditioning multiple rooms within a building.

Houses are becoming increasingly airtight and highly insulated in order to save energy and provide comfortable living. The most suitable air conditioner for highly airtight, highly insulated houses is a central air conditioning system that blows conditioned air throughout the house.
Conventionally, this type of air conditioning system is known as a system in which an air conditioning room with an air conditioner is installed inside a building, where conditioned air is created and air is sent to each room through ducts, etc. This is not used when there is no space for a room or when there is no need to air condition most of the rooms in the building, and air conditioners are often installed only in the rooms that require air conditioning. There are problems with comfort due to temperature differences between rooms, power consumption problems due to the operation of multiple air conditioners, and problems with the installation space for multiple air conditioners.
In addition, in order to create a comfortable living space even in rooms without air conditioners, a simple air conditioning system that blows air from a room with an air conditioner into a room without an air conditioner has been patented. Disclosed in the literature.
Connect the air inlet installed on the ceiling of the room where the air conditioner is installed and the air supply hole installed on the floor of the room where the air conditioner is not installed with a duct, blower, and damper, and then In an air conditioning system, a duct, a blower, and a damper connect a built-in intake inlet and an air supply inlet installed in the ceiling of a room where no air conditioner is installed. , an air conditioning function that indirectly warms a room without air conditioning by transporting it to a room without an air conditioner, such as a washroom, and blowing out from the floor; It has an air conditioning function that indirectly cools rooms where air conditioners are not installed by transporting the air near the floor to rooms where air conditioners are not installed, such as washrooms, and blowing it out from the ceiling (for example, patented (See Reference 1).
In addition, other air conditioning systems are equipped with a first living room where an air conditioner is located, a second living room, a circulation air path for circulating air, and a blower for the circulation air path, and a second room where the air conditioner is located. The air in the first living room can be sent to the second living room through the circulating air path, and the air in the second living room can be sent to the first living room through the circulating air path. (For example, see Patent Document 2).
In addition, other air conditioning systems install an air conditioner and a blower with an air purifying section in one room in a building. The conditioned air is sent to the piping section along with the outside air with which heat has been exchanged with the outside air, and the piping section guides the conditioned air to each room, thereby making it possible to adjust the air quality environment of each room (see, for example, Patent Document 3).

Patent No. 6657057 JP2020-8246A Japanese Patent Application Publication No. 2010-101600

In the air conditioning system described in Patent Document 1, in an ordinary house, relatively warm air is sucked in from the ceiling inlet when heating the living room where the air conditioner is installed, and relatively cool air is sent to the floor when cooling. It is possible to indirectly heat or cool the room by drawing air in through the air inlet and transporting it using a blower to a washroom or other place where an air conditioner is not installed, but the purpose of this is to reduce the density difference due to air temperature. This method heats or cools washrooms, etc. where air conditioners are not installed, while reducing the power consumption of blowers by using air conditioners. The temperature in the room where the air conditioner is installed may not be uniform, depending on the position of the air inlet connected to the blower by a duct, the operating conditions such as the blowing direction of the air conditioner, the air flow rate of the blower, etc., and the air may be uneven. Since the air is transported, the temperature in a room without an air conditioner will not be uniform, and the room will not be warm or cool. For example, in winter, a room with an air conditioner is too hot and a room without one is cold, and in summer, a room with an air conditioner is too cool and a room without one is too hot, making both rooms uncomfortable. There was a problem that the temperature in each room would be the same. Further, if the temperature is forced to approach the set temperature, there is a problem that the operation of the air conditioner and the blower may become inefficient, resulting in an increase in power consumption. Furthermore, if the means of returning from a room without an air conditioner to a room with an air conditioner is unknown, there is no return air path, and the door is closed, etc. There was a problem in that the amount of air being conveyed to the room was insufficient, and the power consumption and noise of the blower increased, resulting in the room not being warm or cool.
The air conditioning system described in Patent Document 2 can indirectly heat or cool a room where an air conditioner is not installed, but as in Patent Document 1, the installation of an air conditioner, blower, air outlet, suction port, etc. Because the location and positional relationship are unclear, the temperature in any room may be uneven and uncomfortable, and no matter how large the airflow rate of the fan, the temperature in the room where the air conditioner is not installed will be the same as the air conditioner. There is a large temperature difference compared to the set temperature of the machine, for example, in winter, a room with an air conditioner installed is too hot and a room without one is cold, and in summer, a room with an air conditioner is too cool and is not installed. There was a problem in that any room could be hot and uncomfortable, and if a room without an air conditioner was forced to reach the set temperature, power consumption could increase.
The air conditioning system described in Patent Document 3 can adjust the air quality environment etc. of each room, but like Patent Documents 1 and 2, there are problems such as uneven air quality in each room and discomfort, and power consumption. There was a problem. In addition, the means of return from each room to the air conditioner and the air path of its air purifying section were unclear, leading to problems such as insufficient air volume and insufficient air purification for other rooms. Furthermore, the method for transporting heat-exchanged outside air to each room was unclear, and there was also the problem that the amount of outside air introduced into each room was insufficient.

The present invention solves these conventional problems, and uses a relatively simple system in highly airtight and highly insulated buildings to adjust the temperature in rooms where no air conditioner is installed. By purifying the air and reliably reducing the amount of dust in rooms where air conditioners are not installed, and by performing heat exchange ventilation, it is possible to reliably reduce _CO2 concentration and improve air quality. The aim is to provide an energy-saving air conditioning system that can achieve

In order to achieve the above object, the air conditioning system of the present invention provides an air conditioner and an inlet C in a space A in a highly airtight and highly insulated building, and an outlet in a space B, so that the space A and the space B are connected to each other. A return air section forming a return air path from the space B to the space A is provided between the spaces, and the suction port C, the blower, and the outlet are connected by a supply air path, and the blower allows the air to flow through the suction. The air sucked in by the port C is blown out from the outlet, the inlet C is provided below the air conditioner, and by setting the room temperature of the space A, the operating mode, the set temperature, and the air volume of the air conditioner, The temperature and air volume of the airflow from the air conditioner are adjusted, the angle of the airflow from the air conditioner is adjusted by setting the wind direction louver of the air conditioner, and the air volume of the blower is adjusted, thereby controlling the suction. It is characterized in that the temperature of the air sucked through the mouth C can be adjusted to within 20K when heating and within 10K when cooling with respect to the room temperature of the space A.
By this means, the temperature and air volume of the airflow from the air conditioner are stabilized, the angle of the airflow from the air conditioner and the airflow volume of the blower are set, the temperature of the air sucked in by the suction port C is adjusted, and the air is conveyed into the space. The temperature of B is adjustable.
At this time, in order to make it possible to adjust the temperature of the air sucked in by the suction port C to within 20K when heating and within 10K when cooling the room temperature of space A, a large amount of airflow is allowed to flow into the suction port C. In addition, the suction port C that adjusts the angle of the airflow direction louver is provided below the air conditioner, so when cooling the air, there is no need to align the wind direction louver with the direction of the suction port C. If you face the airflow and align the wind direction louver with the direction of the suction port C, you can more efficiently draw in most of the airflow into the suction port C. However, during heating, the air flows upward due to the density of the air, so the wind direction louver is directed vertically downward, and the air volume is set to be strong in accordance with the direction of the suction port C, so that a large amount of airflow flows into the suction port C.
For example, if you want to quickly heat/cool space B, space A is not air-conditioned, so the room temperature is low/high, and the air conditioner is set to normal temperature, air flow is high/medium, and heating/cooling is performed, and the blower is turned on. If you increase the airflow rate and align the direction of the airflow from the air conditioner with the direction of the suction port C provided below the air conditioner, the speed of the airflow will decrease near the suction port C, Most of the blown airflow is sucked into space C, and the room temperature in space B is about 20K higher during heating and about 10K lower during cooling than the room temperature in space A, so the room temperature in space B rises/falls quickly.
Also, if you want to heat/cool space B while heating/cooling space A, the room temperature is stable at the set temperature because space A is air conditioned, and you can set the air conditioner to a slightly higher or lower temperature. , when heating/cooling is operated with medium/medium air flow, the air flow of the blower is set to high, and the direction of the air flow from the air conditioner is aligned with the direction of the air inlet C provided at the bottom of the air conditioner. Nearby, the wind speed of the blowout airflow decreases, and most of the blowout airflow is sucked into the suction port C, and compared to the room temperature in space A, it is about 20K higher during heating and about 10K lower when cooling, but the air flow rate of the air conditioner decreases. Since the is small, the change in the room temperature in space A is small, and the room temperature in space B increases/decreases.
Furthermore, if space A is heated/cooled and space B is heated/cooled as usual, space A is air-conditioned, the room temperature is stable at the set temperature, and the air conditioner's set temperature is higher/lower. , perform heating/cooling operation at medium/low air volume, set the blower's air volume to medium, and set the direction of the airflow from the air conditioner downward when heating and horizontally when cooling. , the air at the room temperature of space A is sucked into the suction port C instead of the blowout airflow, so the room temperature of space A approaches zero K when heating and approaches zero K when cooling. There is almost no change in the room temperature, and the room temperature in B rises/falls slightly as time goes on.
If only space A is heated/cooled and space B is not heated/cooled, the blower may be stopped.
In this way, the temperature of any space can be adjusted and made comfortable according to individual preference, and the operation of air conditioners and blowers is efficient, resulting in an air conditioning system that consumes less power. .
Furthermore, because there is a clear way to return from a room without an air conditioner to a room with an air conditioner, the amount of air blown by the blower remains stable even when the door is closed, and the air intake by the air conditioner Since the temperature is stable and the temperature of the airflow is also stable, the power consumption and noise of the blower do not increase, and an air conditioning system that reliably warms/cools can be obtained.
Further, another means is characterized in that an electrostatic precipitator or a HEPA filter that cleans the air sucked through the suction port C is provided so as to be removable from the front of the suction port C.
By this means, not only the above-mentioned temperature adjustment but also air purification such as dust removal can be achieved by operating a blower to transport the air from space A to space B and circulating it through the return air path. , the air in space A and space B can be cleaned and the air quality can be improved.
In addition, since the suction port C is provided below the air conditioner, it is easy to suck in the dust that is biased toward the bottom of the space A. C suction efficiency is also improved.
Furthermore, since the electrostatic precipitator or HEPA filter can be taken out from the front of the suction port C at the bottom of the air conditioner, regular maintenance can be easily performed without providing an inspection port or using a ladder. .
Another method is to provide an air conditioner, an inlet D, and an inlet E in a space A in a highly airtight and highly insulated building, and provide an air outlet in a space B between the space A and the space B. is provided with a return air section that forms a return air path from the space B to the space A, and connects the inlet D and the inlet E with the blower with a duct to form a supply air path. The blower blows out the air taken in by the suction port D and the suction port E from the blow-off port, the suction port D is provided below the air conditioner, and the suction port E is provided at the bottom of the air conditioner. A damper is provided above and is capable of adjusting the amount of the air sucked in by the suction port D and the suction port E, and sets the room temperature of the space A, the operation mode, set temperature, and air volume of the air conditioner. The temperature and air volume of the airflow from the air conditioner are adjusted, the angle of the airflow from the air conditioner is adjusted by setting the wind direction louver of the air conditioner, the air volume of the blower is adjusted, and the damper By adjusting the amount of the air sucked in by the suction port D and the suction port E, the temperature of the air sucked in by the suction port D and the suction port E can be adjusted relative to the room temperature of the space A. It is characterized by being adjustable within 20K during heating and within 10K during cooling.
By this means, the temperature and air volume of the airflow from the air conditioner are stabilized, and by setting the angle of the airflow and the airflow volume of the blower, the amount of air sucked in by the suction port D and the suction port E can be adjusted. By adjusting the temperature of the air sucked in by D and the suction port E, the temperature of the space B into which the air is conveyed can be adjusted.
At this time, in order to make it possible to adjust the temperature of the air sucked in by the suction ports D and E to within 20K during heating and within 10K during cooling with respect to the room temperature of space A, Adjust the damper and adjust the angle of the wind direction louver so that more air flows into the area. During cooling, the amount of air sucked from suction port D is 100%, and the amount of air sucked from suction port E is 0%.Since suction port D is provided below the air conditioner, the airflow direction louver is Even if you do not align the airflow with the direction of the suction port D, the density of the air will cause it to flow downward toward the suction port D. Therefore, if you align the wind direction louver with the direction of the suction port D, you can more efficiently direct most of the airflow toward the suction port D. It can be inhaled. During heating, the amount of air sucked from suction port D is 0%, and the amount of air sucked from suction port E is 100%.Since suction port E is provided above the air conditioner, the airflow direction louver is Even if you do not align the airflow with the direction of the suction port E, the air will flow upward toward the suction port E depending on the density, so if you align the wind direction louvers with the direction of the suction port E, you can more efficiently direct most of the airflow toward the suction port E. It can be inhaled.
For example, if you want to quickly heat space B, space A is not air-conditioned and the room temperature is low, so set the air conditioner to normal temperature, set the air volume to high, run the air conditioner for heating, and turn the blower's air flow to high. If the amount of air sucked in from suction port D is 0%, the amount of air sucked in from suction port E is 100%, and the direction of the air flow from the air conditioner is aligned with the direction of suction port E provided above the air conditioner. , near the suction port E, the wind speed of the blowout airflow decreases, and most of the blowout airflow is sucked into the suction port E, and the room temperature in space B becomes about 20K higher during heating compared to the room temperature in space B, so the room temperature in space B quickly rises. Go up.
Also, if you want to heat space B while heating space A, since space A is air-conditioned, the room temperature is stable at the set temperature, and you can set the air conditioner to a slightly higher set temperature and set the air volume to the heating mode. Then, increase the air flow rate of the blower, set the amount of air sucked from suction port D to 0%, set the amount of air sucked from suction port E to 100%, and change the direction of suction port E provided above the air conditioner. When the direction of the airflow from the air conditioner is adjusted to Although it becomes 20K higher, the air volume of the air conditioner is small, so the change in room temperature in space A is small, and the room temperature in space B rises.
Furthermore, if space A is heated and space B is heated as expected, space A is air-conditioned, the room temperature is stable at the set temperature, the air conditioner's set temperature is high, the air volume is high, and the blower is turned on. For the comfort of space A, the direction of the airflow from the air conditioner is directed downwards, the amount of air sucked in from suction port D is set to 50%, and the amount of air sucked in from suction port E is set to 50%. By setting this to 50%, the temperature difference between the upper and lower sides of the space A can be reduced by sucking the air that rises with the density of the air through the suction port D.
If space A is cooled and space B is cooled as expected, space A is air-conditioned, the room temperature is stable at the set temperature, the air conditioner is set at a low temperature, the air flow is low, and the blower is not blowing. With the air volume set to medium, the direction of the airflow from the air conditioner is directed upward for the comfort of space A, the amount of air sucked in from suction port D is 50%, and the amount of air sucked in from suction port E is 50%. %, the temperature difference between the upper and lower sides of the space A can be reduced by sucking air that descends with the density of the air from the suction port E.
If only space A is heated/cooled and space B is not heated/cooled, the blower may be stopped.
In this way, the temperature of any space can be adjusted according to individual preference, and the temperature difference between the top and bottom of space A can be reduced, making it more comfortable. By utilizing the downdraft due to the density of air, air conditioners and blowers operate more efficiently, resulting in an air conditioning system that consumes less power.
Furthermore, because there is a clear way to return from a room without an air conditioner to a room with an air conditioner, the amount of air blown by the blower remains stable even when the door is closed, and the air intake by the air conditioner Since the temperature is stable and the temperature of the airflow is also stable, the power consumption and noise of the blower do not increase, and an air conditioning system that reliably warms/cools can be obtained.
Further, another means is to install an electrostatic precipitator or a HEPA filter that cleans the air sucked through at least one of the suction port D or the suction port E in front of the suction port D or the suction port E. It is characterized by being provided so that the inside can be taken out.
By this means, not only the above-mentioned temperature adjustment but also air purification such as dust removal can be achieved by operating a blower to transport the air from space A to space B and circulating it through the return air path. , the air in space A and space B can be cleaned and the air quality can be improved.
In addition, by adjusting the amount of air sucked in by the suction ports D and E to target locations where dust and the like are unevenly distributed in the space A, the air inside the space A can be uniformly and efficiently cleaned.
Furthermore, since the electrostatic precipitator or the HEPA filter can be taken out from the front of the suction port D or the suction port E, regular maintenance can be easily performed without providing an inspection port.
Further, another means is to provide a heat exchange unit in an outdoor air introduction path that connects the outside and the inside of the building, and to provide the heat exchange unit in an indoor air exhaust path that connects the inside of the building and the outside, so that the heat exchange unit , the indoor air is discharged to the outdoors while outdoor air is introduced into the building, and heat is exchanged between the indoor air and the outdoor air.
This means not only adjusts the temperature and cleans the air as described above, but also operates a blower to bring fresh air into the building by exchanging heat with outdoor air while expelling indoor air. This allows air to be supplied to space B, which saves energy, removes humidity and odors from inside the building, and reduces _CO2 .
Further, another means is characterized in that one of the air conditioning systems is provided on one floor of the building.
With this method, it is possible to set the operation status of the air conditioning system to start/stop for each floor according to the temperature, amount of dust, _CO2 , etc. distribution in the building, making the inside of the building more efficient and improving air quality. can be improved uniformly.
In addition, another means is to provide an air conditioner and an inlet F in a space A in a highly airtight and highly insulated building, and provide an outlet in a space B, and between the space A and the space B, the air conditioner and the inlet F are provided. A return air section is provided to form a return air path from B to the space A, and the suction port F, the blower, and the blowout port are connected by a supply air path, and the blower causes the air sucked in by the suction port F to A heat exchange unit is installed in an outdoor air introduction path that blows out from the outlet and connects the outside and the inside of the building, and the heat exchange unit is installed in an indoor air exhaust path that connects the inside of the building and the outside. While exhausting the air to the outside, outdoor air is introduced into the building, heat is exchanged between the indoor air and the outdoor air, and the heat-exchanged outdoor air is flowed through the air supply path to lower the room temperature of the space A. By setting the operating mode, set temperature, and air volume of the air conditioner, the temperature and air volume of the airflow from the air conditioner are adjusted, and by setting the wind direction louver of the air conditioner, the air flow from the air conditioner is adjusted. By adjusting the angle of the air blower, adjusting the airflow rate of the blower, and adjusting the ventilation airflow rate of the heat exchange unit, the temperature of the air sucked in by the suction port F can be adjusted to a heating level with respect to the room temperature of the space A. The feature is that the temperature can be adjusted within 20K during cooling, and within 10K during cooling.
By this method, the air inlet is installed on the ceiling of the room where the air conditioner is installed, so the air inlet is not noticeable and neat in terms of the design of the room, and the wall does not have enough depth to install the air inlet or duct. In contrast, the ceiling has sufficient depth as a space behind the ceiling, and there is a wide space for installing air inlets and ducts, making it easier to install.
Normally, during cooling, the airflow from the air conditioner tends to become a downward airflow depending on the density of the air, and if the suction port is located on the ceiling, it is difficult to suck in a large amount of the airflow from the air conditioner. Install a suction port close to the front, make the blowing airflow direction horizontal, lower the wind speed, increase the air speed of the blower, increase the amount of heat-exchanged outside air introduced, and supply the heat-exchanged outside air to each room. In this way, the air volume of the return air flow to the room where the air conditioner is installed is set to the blowing air volume plus the ventilation air volume, the speed of the return air flow to the suction port is increased, and the temperature of the return air air flow is raised to slightly higher than room temperature. Since the airflow can be drawn to the suction port by the return airflow, a large amount of the discharged airflow can be sucked in at the suction port even during cooling.
In addition, since the air volume of the blower and heat exchange unit is increased, their power consumption increases slightly, but the power consumption is lower than that of an air conditioner, and the room where the air conditioner is installed can be installed without heating or cooling it more than necessary. You don't get an air conditioning system that can make the room temperature adjustable and comfortable.
In addition to the above-mentioned temperature adjustment, in addition to air purification, fresh outside air after heat exchange is mixed with conditioned air and supplied directly to each room, resulting in a reduction in _CO2 and odors in each room. Improved air quality can be achieved quickly and reliably.
Further, another means is characterized in that an electrostatic precipitator or a HEPA filter that cleans the air sucked through the suction port F is provided so as to be removable from the front of the suction port F.
By this means, not only the above-mentioned temperature adjustment but also air purification such as dust removal can be achieved by operating a blower to transport the air from space A to space B and circulating it through the return air path. , the air in space A and space B can be cleaned and the air quality can be improved.
Further, since the electrostatic precipitator or the HEPA filter can be taken out from in front of the suction port F on the ceiling of the room, regular maintenance can be easily performed without providing an inspection port.
Further, another means is to provide a heat exchanger through which a refrigerant or a liquid passes inside downstream of the heat exchange element of the heat exchange unit in the outdoor air introduction path, and to exchange the outdoor air introduced into the building with the heat exchanger. It is characterized in that the heat exchanger is passed through the element and the heat exchanger in this order.
With this method, by changing the state of the refrigerant flowing through the heat exchanger with the heat pump depending on the season, it is possible to save energy and maintain a more comfortable temperature and humidity inside the building without the need to install additional air conditioners or dehumidifiers. I can do it.
Further, another means is characterized in that one of the air conditioning systems is provided on one floor of the building.
With this method, it is possible to set the operation status of the air conditioning system to start/stop for each floor according to the temperature, amount of dust, _CO2 , etc. distribution in the building, making the inside of the building more efficient and improving air quality. can be improved uniformly.
Another method is to install an air conditioner in a space A in a highly airtight and highly insulated building, and in front of the air conditioner, provide a suction port G at a height equal to or lower than the installation height of the air conditioner. B is provided with an air outlet, and between the space A and the space B is provided a return air section that forms a return air path from the space B to the space A, and the air inlet G, the blower, and the The air outlet is connected with an air supply path, and the blower blows out the air sucked in by the suction port G and the air blown from the air conditioner from the air outlet, and controls the room temperature of the space A, the operating mode and set temperature of the air conditioner. By setting and airflow rate, the temperature and airflow rate of the airflow from the air conditioner are adjusted, and by setting the wind direction louver of the air conditioner, the angle of the airflow from the air conditioner is adjusted, and the airflow rate from the blower is adjusted. By adjusting the temperature of the air sucked in by the suction port G, it is possible to adjust the temperature of the air sucked in by the suction port G to within 20 K when heating and within 10 K when cooling, with respect to the room temperature of the space A. be.
By this means, normally, when cooling, the airflow from the air conditioner tends to become a downward airflow due to the density of the air, and if the suction port is located on the ceiling, it is difficult to suck in a large amount of the airflow, but in this embodiment, Install the air inlet in front of the indoor air conditioner unit at a height equal to or lower than the height of the air outlet of the indoor air conditioner unit by creating a ceiling room, etc., make the direction of the air flow horizontal, lower the wind speed, and turn the blower on. By operating, the wind speed of the air sucked in at the suction port is increased, so that a large amount of airflow can be sucked in at the suction port even during cooling.
In addition, compared to the above-mentioned method, since it does not depend on the operation of the heat exchange unit or the ventilation air volume, the total power consumption, including the power consumption of the air conditioner, is reduced, and the room where the air conditioner is installed is not heated or cooled more than necessary. This provides an air conditioning system that can adjust the temperature of rooms that are not installed and make them more comfortable.
Further, since a pre-filter, a blower, etc. are provided in the suction port or the louver, maintenance such as cleaning and replacement can be easily performed by opening the louver.
In addition, since the air conditioner is installed embedded in the ceiling room, etc., the air conditioner is not noticeable in the design of the room, making it neat and tidy. , there is a large space for installing air conditioners, suction ports, ducts, etc., making it easy to install.
Further, another means is characterized in that an electrostatic precipitator or a HEPA filter for cleaning the air sucked through the suction port G is provided so as to be removable from the front of the suction port G.
By this means, not only the above-mentioned temperature adjustment but also air purification such as dust removal can be achieved by operating a blower to transport the air from space A to space B and circulating it through the return air path. , the air in space A and space B can be cleaned and the air quality can be improved.
Further, since the electrostatic precipitator or the HEPA filter can be taken out from the front of the suction port G, regular maintenance can be easily performed without providing an inspection port.
Further, another means is characterized in that one of the air conditioning systems is provided on one floor of the building.
With this method, it is possible to set the operation status of the air conditioning system to start/stop for each floor according to the temperature, amount of dust, _CO2 , etc. distribution in the building, making the inside of the building more efficient and improving air quality. can be improved uniformly.
In addition, another means is to provide an air conditioner in a space A in a highly airtight and highly insulated building, provide an inlet H above the air conditioner, provide an outlet in a space B, and provide the space A and the space B. A return air section that forms a return air path from the space B to the space A is provided between the space B and the air outlet, and the suction port H, the blower, and the outlet are connected by a supply air path, and the blower The air sucked in by the suction port H and the air blown from the air conditioner are blown out from the air outlet, and the air flow from the air conditioner is adjusted depending on the room temperature of the space A, the operating mode, set temperature, and air volume of the air conditioner. adjusting the temperature and air volume of the air conditioner, adjusting the angle of the airflow from the air conditioner by setting the wind direction louver of the air conditioner, and making the air volume of the blower larger than the air volume of the air flow from the air conditioner. Thus, the temperature of the air sucked in by the suction port H can be adjusted to the room temperature of the space A within 20 K during heating and within 10 K during cooling.
By this method, the suction louver and inlet are installed on the ceiling of the room where the air conditioner is installed, so the interior design of the room makes the suction louver unnoticeable and neat, and the wall has enough depth to install the inlet and duct. On the other hand, the ceiling has sufficient depth, such as an attic space, and has a wide space for installing air inlets and ducts, making it easier to install.
Normally, during cooling, the airflow from the air conditioner tends to become a downward airflow depending on the density of the air, and if the suction louver is located on the ceiling, it is difficult to suck in much of the airflow from the air conditioner. By installing a suction louver near the top, setting the direction of the blowing airflow horizontally, lowering the wind speed, and operating multiple blowers, the wind speed of the air sucked into the suction louver is increased, and the wind speed of the return air flow to the suction louver is increased. By making the return air flow faster, the blown airflow can be drawn into the suction louver by the return airflow, so even during cooling, a large amount of the blown airflow can be sucked into the suction louver.
In addition, since the number of blowers and the total amount of air blowing are increased compared to the above-mentioned method, their power consumption increases slightly, but since it does not depend on the operation of the heat exchange unit and the ventilation air volume, the power consumption is included in the air conditioner. It is possible to obtain an air conditioning system that reduces total power consumption, does not unnecessarily cool or heat a room where an air conditioner is installed, and can also adjust the temperature of a room where the air conditioner is not installed, making it more comfortable.
Furthermore, since a pre-filter, a blower, etc. are provided in the suction port, maintenance such as cleaning and replacement can be easily performed by opening the suction louver.
Further, another means is characterized in that an electrostatic precipitator or a HEPA filter that cleans the air sucked through the suction port H is provided so as to be removable from the front of the suction port H.
By this means, not only the above-mentioned temperature adjustment but also air purification such as dust removal can be achieved by operating a blower to transport the air from space A to space B and circulating it through the return air path. , the air in space A and space B can be cleaned and the air quality can be improved.
Further, since the electrostatic precipitator or the HEPA filter can be taken out from the front of the suction port H, regular maintenance can be easily performed without providing an inspection port.
Further, another means is characterized in that a return air blower is provided in the return air passage instead of the return air section.
This method can be used when there is no structural space for a return air vent, when you want to prevent noise from leaking from the adjacent room through the return air vent, when you want to protect your privacy by closing the door firmly, or when you want to protect your privacy. This can be used in cases where a space in the middle of the return air path is not air-conditioned in order to reduce the air conditioning load.

According to the present invention, in highly airtight and highly insulated buildings, it is possible to adjust the temperature in rooms where air conditioners are not installed using a system with a relatively simple configuration, and also purifies the air when air conditioners are installed. This will surely reduce the amount of dust etc. in rooms that are not being used.Furthermore, by performing heat exchange ventilation, it will be possible to reliably reduce _CO2 concentration while exhausting moisture etc. from the building, improving air quality. We can provide an energy-saving air conditioning system that can
Furthermore, the temperature and air quality such as dust in the room where the air conditioner is installed can be made uniform, making it possible to create a more comfortable space.
Furthermore, maintenance of the electrostatic precipitator, etc. can be easily performed from the room side, and energy savings can be achieved by operating the air conditioners, blowers, etc. according to the purpose on each floor.

A sectional view of a building showing the configuration of an air conditioning system in Embodiment 1 of the present invention Perspective view of a room where an air conditioner indoor unit is installed Perspective view of suction port Cross-sectional view of the suction port Wind flow diagram when priority is given to heating other rooms Wind flow diagram when heating your own room is prioritized Wind flow diagram when priority is given to cooling other rooms Wind flow diagram when cooling your own room is prioritized A sectional view of a suction port in Embodiment 2 of the present invention Wind flow diagram when priority is given to heating other rooms Wind flow diagram when heating both rooms Wind flow diagram when heating your own room is prioritized Wind flow diagram when priority is given to cooling other rooms Wind flow diagram when cooling both rooms Wind flow diagram when cooling your own room is prioritized A sectional view of a building showing the configuration of an air conditioning system in Embodiment 3 of the present invention Wind flow diagram when priority is given to cooling other rooms Wind flow diagram when cooling your own room is prioritized Wind flow diagram when priority is given to heating other rooms Wind flow diagram when heating both rooms External view of branch part in Embodiment 3 of the present invention A sectional view showing the configuration of a heat exchange unit in Embodiment 4 of the present invention A flow diagram of wind when priority is given to cooling other rooms, showing the configuration of an air conditioning system in Embodiment 5 of the present invention A flow diagram of wind when priority is given to cooling other rooms, showing another configuration of the air conditioning system in Embodiment 5 of the present invention A flow diagram of wind when priority is given to cooling other rooms at a staircase landing, showing the configuration of an air conditioning system in Embodiment 6 of the present invention A sectional view of a building showing the configuration of an air conditioning system in Embodiment 7 of the present invention A sectional view of a building showing the configuration of an air conditioning system in Embodiment 8 of the present invention A sectional view of a building showing the configuration of an air conditioning system in Embodiment 9 of the present invention

(Embodiment 1)
FIG. 1 is a sectional view of a building showing the configuration of an air conditioning system according to Embodiment 1 of the present invention.
As shown in the figure, air conditioning systems 1 and 2 are installed on the first floor 4 and second floor 5 of a two-story building 3, which is a highly airtight and highly insulated house, and air-condition and ventilate rooms in the building 3. are doing.
In this embodiment, a room refers to a living room, a space refers to a living room and a non-living room, and a living room refers to a room that is continuously used for living, office work, work, meetings, entertainment, and other similar purposes. A non-occupied room refers to a room that is used, and a non-occupied room refers to a room that is not used. However, rooms whose purpose is difficult to determine as an occupied room can be determined based on the actual usage.
The building 3 has an outer shell covered with a heat insulating material (not shown) and an airtight sheet (not shown) without any gaps, the roof 6 has roof insulation specifications, the foundation 7 has basic insulation specifications, and the windows are triple-glazed resin sashes. The insulating sash 8 and the door are insulating doors (not shown), and the entire rooms and spaces in the building 3, including the attic space (insulating space) 9 and the underfloor space (insulating space) 10, are insulating spaces. There is.
Insulation methods can be broadly divided into external insulation and internal insulation, which should be adopted depending on the merits/demerits of each, but the outer skin of Building 3 has no insulation defects and at least satisfies the insulation performance of ZEH standards. Building 3 is targeted.
Regarding airtightness, it depends on the specifications of the airtight sheet, but we are targeting Building 3 where the continuity of the airtight layer is maintained by pasting airtight tape etc. on the seams of the airtight sheet and clearing at least a C value of 1.0. do.

The air conditioner indoor units 15 and 16, which are part of the air conditioners that are the components of the air conditioning systems 1 and 2, are installed in the entrance hall 17 (space A) on the first floor and the stair landing 18 (space A) on the second floor, respectively. It is provided.
In this embodiment, the air conditioner indoor units 15 and 16 are provided in the entrance hall 17 and the staircase landing 18, but they are also provided in living rooms such as the living room 20, bedroom 21, guest room 22, and children's room 23, as well as in the attic space 9, It may be provided in a non-occupied room such as the underfloor space 10, under the stairs (not shown), or in a machine room (not shown).
Similarly, air conditioner indoor units 15 and 16, which are part of the air conditioner, are connected to air conditioner outdoor units 30 and 31 installed outdoors, respectively, through refrigerant piping and electrical wiring 32, and the system is connected to the air conditioner on the first floor. (air conditioner, not shown) and an air conditioner (air conditioner, not shown) on the second floor.
In addition, as the configuration of the air conditioning systems 1 and 2, below the walls 33 and 34 where the air conditioner indoor units 15 and 16 are installed, suction ports 42 and 43 (suction port C ), and air outlets 50, 51, 52, and 53 are installed in the ceilings 44, 45, 46, and 47 of the living room 20, bedroom 21, guest room 22, and children's room 23 (space B), respectively. In order to blow out the air sucked in by the suction ports 42, 43 from the blow-off ports 50, 51, 52, 53, blowers 55, 56 and branch pipes 60, 61 are installed in the attic spaces 62, 63, and ducts 70, 71, The ducts 72 and 73 are passed through the wall space 75 and the attic space 62, and the ducts 76, 77, 78, and 79 are passed through the wall space 80 and the attic space 63. By airtightly connecting the suction port 42, the blower 55, the branch pipe 60, and the air outlets 50, 52 through the ducts 70, 71, 72, and 73, the air intake port 42 in the entrance hall 17 can be connected to the air outlet 50 in the living room 20. , forming an air supply air path on the first floor up to the air outlet 52 of the guest room 22. By airtightly connecting the suction port 43, the blower 56, the branch pipe 61, and the air outlets 51, 53 through the ducts 76, 77, 78, and 79, the air outlet of the bedroom 21 can be connected from the suction port 43 of the stair landing 18 to the air outlet of the bedroom 21. 51, forming an air supply air path on the second floor up to the air outlet 53 of the children's room 23.

Furthermore, as a configuration of the air conditioning systems 1 and 2, a return air port 85 (return air part) such as an undercut is provided in the door (not shown) between the guest room 22 and the living room 20, and the door between the living room 20 and the entrance hall A return air passage on the first floor from the guest room 22 and the living room 20 to the entrance hall 17 is formed by providing a return air opening 86 (return air part) such as an undercut in the door (not shown) between the rooms 17 and 17. do. The door between the children's room 23 and the bedroom 21 (not shown) is provided with a return air port 87 (return air part) such as an undercut, and the door between the bedroom 21 and the staircase landing 18 (not shown) is provided with a return air port 87 (return air part) such as an undercut. By providing a return air opening 88 (return air part) such as an undercut, a return air passage on the second floor from the children's room 23 and bedroom 21 to the landing 18 of the stairs is formed.
The supply air duct on the first floor and the return air duct on the first floor are connected, and on the 1st floor 4, the air conditioned air is a mixture of the air blown out from the air conditioner indoor unit 15 in the entrance hall 17 and the air in the entrance hall 17. The supplied air is sucked in from the suction port 42, passes through the duct 70, blower 55, duct 71, branch pipe 60, ducts 72, 73, and is blown out from the air outlet 50 in the living room 20 and the air outlet 52 in the guest room 22, respectively. . A circulating air passage (not shown) on the first floor is formed in which the air-conditioned return air returns to the entrance hall 17 through return air ports 85 and 86. The supply air duct on the second floor and the return air duct on the second floor are connected, and on the second floor 5, conditioned air is produced by mixing the blown air blown from the air conditioner indoor unit 16 at the stair landing 18 with the air from the stair landing 18, etc. The supplied air is sucked in from the suction port 43, passes through the duct 76, blower 56, duct 77, branch pipe 61, ducts 78 and 79, and is then blown out from the air outlet 51 of the bedroom 21 and the air outlet 53 of the children's room 23, respectively. put out. A second-floor circulation air path (not shown) is formed in which the air-conditioned return air passes through return air ports 87 and 88 and returns to the stair landing 18.

Heat exchange units 95 and 96 are installed in the entrance hall 17 and the landing 18 of the stairs, in the attic space 62, for recovering all the heat of the indoor air into the outdoor air when introducing outdoor air into the room and exhausting the indoor air to the outdoors. 63, respectively, to ventilate the first floor 4 and second floor 5 of building 3.
In the present embodiment, the heat exchange units 95 and 96 have a 24-hour ventilation air volume of 100 m ³ /h, a strong notch ventilation air volume of 150 m ³ /h, and a total heat exchange rate of about 70%.
Ventilation exhaust ports 102 and 103 such as exhaust louvers are provided on the ceilings of the toilets 100 and 101 in the building 3 to exhaust the air inside the toilets 100 and 101, and are connected to heat exchange units 95 and 96.
Outdoor exhaust hoods 105 and 106 are provided in through holes in the outer wall of the building 3, and are connected to heat exchange units 95 and 96 through exhaust ducts 107 and 108.
The heat exchange units 95 and 96 include an introduction fan (not shown) that introduces outdoor air, an exhaust fan (not shown) that exhausts indoor air, a motor (not shown), and a motor (not shown) that transfers all the heat from indoor air to outdoor air. It has heat exchange elements 110 and 111 for recovery.
Note that since the heat exchange units 95 and 96 are installed in contact with the ceilings of the toilets 100 and 101, the heat exchange elements 110 and 111 and the element pre-filter (not shown) can be accessed from the ceilings of the toilets 100 and 101. This makes maintenance such as regular cleaning easy.
As a result, all heat of the indoor air is recovered from the ventilation exhaust ports 102 and 103 in the heat exchange units 95 and 96, and is exhausted outside through the outdoor exhaust hoods 105 and 106 through the exhaust ducts 107 and 108. Ru.
Indoor air exhaust channels on the first and second floors are formed between ventilation exhaust ports 102, 103 and outdoor exhaust hoods 106, 106, respectively, and are formed by heat exchange units 95, 96 and exhaust ducts 107, 108, respectively. . Although the exhaust fans of the heat exchange units 95 and 96 are provided in the indoor air exhaust path, other exhaust fans may be provided in addition to or together with the exhaust fans.
Outdoor air supply hoods 115 and 116 are provided in through holes in the outer wall of the building 3, and are connected to heat exchange units 95 and 96 through air supply ducts A117 and 118.

Filter boxes 120 and 121 are provided in the air supply ducts A117 and 118 so as to contact the ceilings of the toilets 100 and 101. Since the filter boxes 120 and 121 have outside air cleaning filters (not shown) that clean the outdoor air introduced into the attic spaces 62 and 63, maintenance such as cleaning the filters from the ceiling can be easily performed.
Ventilation air supply ports 125 and 126 for blowing outdoor air into the building 3 are provided on the ceilings of the entrance hall 17 and the stair landing 18, and are connected to heat exchange units 95 and 96 through air supply ducts B130 and 131. .
As a result, outdoor air is introduced from the outdoor air supply hoods 115, 116, passes through the air supply ducts A117, 118, is purified by the filter boxes 120, 121, and recovers all heat in the heat exchange units 95, 96. It passes through the air supply ducts B130 and 131 and is introduced into the room from the ventilation air supply ports 125 and 126.
The outdoor air introduction path is formed between the outdoor air supply hoods 117, 118 and the ventilation air supply ports 125, 126, and includes the air supply ducts A117, 118, the filter boxes 120, 121, the heat exchange air units 95, 96, and It is formed by air supply ducts B130 and 131. The outdoor air introduction path is provided with the introduction fans of the heat exchange air units 95 and 96, but other introduction fans may be provided in addition to or together with the introduction fan.

The toilets 100 and 101 are not provided with an outlet for blowing out supply air, which is conditioned air, but are provided with louvers 135 and 136 between the entrance hall 17 and the stair landing 18, respectively, through which air enters and exits. ing. Due to the operation of the heat exchange units 95 and 96, a part of the return air, which is the air that has been used to condition the rooms, returns to the entrance hall 17 and the stair landing 18, and flows into the toilets 100 and 101 from the galleys 135 and 136. . When the air-conditioned environment is stable, the air quality (temperature, humidity, cleanliness, etc.) in the toilets 100 and 101 is close to that of conditioned air.
Through the operation of the heat exchange units 95 and 96, fresh outdoor air that has been purified by the outside air purifying filters 120 and 121 provided in the outdoor air introduction path is introduced by the introduction fans of the heat exchange air units 95 and 96, and the fresh outdoor air is introduced into the toilet 100. , 101 , etc., and part of the return air, which is the air conditioned in the room, passes through the indoor air exhaust passage from the ventilation exhaust ports 102 and 103 to the heat exchange unit 95 . , 96 enters the heat exchange units 95 and 96, and after exchanging the total heat with the outdoor air in the heat exchange elements 110 and 111, it is discharged outdoors, thereby removing dust, mold spores, etc. from the outdoors. Without entering the building 3, moisture and odors from the toilet etc. are discharged outside, and through heat exchange, it is possible to save energy and reduce dust, moisture, mold spores, etc. inside the building while ventilating the inside of the building 3. can.

Note that in this embodiment, the ventilation exhaust ports 102 and 103 are provided in the toilets 100 and 101, but odors, moisture, harmful substances, etc. are generated and accumulated in places other than the toilets, such as washrooms, bathrooms, and kitchens. A ventilation outlet and a louver may be provided in the so-called dirty zone, which is a room or space where air pollution is likely to occur.In that case, the air can be directly exhausted outside without going through other rooms or spaces. However, if the heat exchange elements 110, 111 of the heat exchange units 95, 96 are not resistant to deterioration due to moisture in the bathroom, oil in the kitchen, etc., it is necessary to provide another ventilation fan.
Further, the ventilation exhaust ports 102 and 103 may be provided in a room downstream of the circulation path (return air path), such as the entrance hall 17 or the staircase landing 18. In that case, some of the indoor air in the room, etc. , the dust and moisture generated in the room, etc. during normal life are discharged outside, but to prevent moisture, etc. from the dirty zone from flowing into the room, etc., there is also a ventilation outlet in the dirty zone. It is necessary to install a ventilation fan or a separate ventilation fan.

FIG. 2 is a perspective view of a room in which an air conditioner indoor unit is installed.
As shown in the figure, the air conditioner indoor units (air conditioners) 15 and 16 that constitute the air conditioning systems 1 and 2 are located in the entrance hall 17 (space A) on the first floor and the stair landing 18 (space A) on the second floor, respectively. It is provided.
The height of the entrance hall 17 and stair landing 18 is approximately 2.4 m, and the air conditioner indoor units (air conditioners) 15 and 16 are installed so that the height of their air outlets 140 and 141 is approximately 2 m. There is.
Suction ports 42 and 43 (suction ports C) are installed below the installed walls 33 and 34 at a height of about 1 m or less above the center of the left and right direction of the air conditioner indoor units 15 and 16.
The suction ports 42 and 43 are installed with the suction louvers 150 and 151 exposed to the room side from the walls 33 and 34, and the main bodies 152 and 153 are installed hidden within the wall spaces 75 and 78, and the ducts 70, 76 is connected.

The air conditioner indoor units 15 and 16 include a heat exchanger (not shown) that exchanges heat between the refrigerant and the air sucked in from the suction ports 142 and 143, and a cross flow fan (not shown) that are housed in an integrated housing. This is a wall-mounted indoor unit of a separate air conditioner that is connected to an outdoor unit (not shown) equipped with a compressor (not shown) through refrigerant piping and electrical wiring 32. The air conditioner indoor units 15 and 16 can select heating/cooling/dehumidification/stop operation modes using a remote control (not shown), and the set air volume of the airflow can be set to strong wind (approximately 10 m ³ /min), medium wind (approximately 7m ³ /min), weak wind (approximately 5m ³ /min), the set temperature can be adjusted between 16°C and 30°C, and the angle of the airflow blown out from the air outlets 140 and 141 can be adjusted by adjusting the wind direction louver 145. , 146.
In addition, the air conditioner indoor units 15 and 16 are equipped with suction air temperature sensors (not shown), and the outdoor units (Fig. It controls the inverter drive frequency of the compressor (not shown) of the air conditioner indoor units 15 and 16, the electric expansion valve (not shown), the outdoor blower (not shown), etc. It controls the enthalpy and circulation amount of the refrigerant flowing into the air conditioner, controls the air conditioning capacity exhibited by the air conditioners on the first floor and the air conditioners on the second floor, and adjusts the temperature and humidity of the airflow from the air conditioner indoor units 15 and 16.
The wind direction louvers 145 and 146 change the angle of the blowing airflow from "horizontal direction (0°)" to "15° (105°) from vertically downward to the wall side" during heating, and from "horizontal direction (0°)" during cooling. It can be adjusted in the range from "60° (60°) downwards from the horizontal."

FIG. 3 is a perspective view of the suction port, and FIG. 4 is a cross-sectional view of the suction port.
As shown in the figure, the suction ports 42 and 43 (suction port C) are suction louvers with external dimensions of 450 mm * 450 mm and have a suction area suitable for sucking in the air volume of approximately 350 m ³ /h, which is the air volume of the blowers 55 and 56. It consists of 150, 151 and main bodies 152, 153, and includes pre-filters 155, 156, air cleaning units 40, 41, power supply units 157, 158, air cleaning suction air passages 160, 161, air cleaning units 162, 163, It has air purifying bypass suction air passages 165 and 166, and has duct connection parts 167 and 168 on the upper sides of the main bodies 152 and 153.
The air cleaning units 40 and 41 are electrostatic precipitator filters, and pre-filters 155 and 156 filter the air sucked in from the suction louvers 150 and 151, mainly removing coarse particles that are visible to the naked eye and particles with a particle size of 10 to 20 μm or more. The air flowing into the air purifying suction air passages 160, 161 is cleaned by the air purifying units 40, 41, which removes even finer particles, particles with a particle diameter of 0.3 μm or more, such as mold spores, dirt, etc. , removes suspended particles such as pollen, yellow dust, and PM2.5. Then, it merges with the air that has directly flowed into the air purifying bypass suction air passages 165 and 166, and heads from the duct connecting portions 167 and 168 through the ducts 70 and 76 to the blowers 55 and 56.
The pre-filters 155, 156 and the air purifying units 40, 41 require maintenance such as regular cleaning, so the main body 152, 153, the pre-filters 155, 156 can be easily removed, and the air purifying units 40, 41 can be pulled out from the air purifying parts 162, 163 of the main bodies 152, 153 using their handles. . After maintenance, the structure can be easily assembled by reversing the process.

The ratio of the amount of air flowing through the air purifying suction air passages 160, 161 and the amount of air flowing directly into the air purifying bypass suction air passages 165, 166 is determined by the ratio of the area of the suction louvers 150, 151 and the pressure of the air purifying units 40, 41. Although it is determined by the loss, the size is such that the suction ports 42 and 43 can be accommodated in the wall spaces 75 and 80,
In order to adjust the temperature in a room where an air conditioner indoor unit is not installed, the air purifying bypass suction air ducts 165 and 166 are installed to the extent that the noise does not become abnormally large in order to ensure a sufficient overall suction air volume (airflow volume). This will increase the proportion of air flowing directly into the air. Even if the amount of air flowing into the air purification suction air channels 160 and 161 decreases, if the operation is continued for a long time, the air will be circulated many times through the rooms in the building 3, and the air cleanliness (reduction in the amount of dust, etc.) will gradually decrease. This is because it increases.
In this embodiment, electric dust collection type air cleaning units 40 and 41 are used, but a HEPA filter type that passes through fine filter paper such as a HEPA filter (High Efficiency Particulate Air Filter) may also be used. The selection may be made depending on the type and degree of dust, bacteria, harmful substances, etc. to be removed, the amount and speed of air passing through, the frequency of maintenance such as cleaning, noise, etc. For example, if the target is a virus with a particle size of 0.1 μm or more that can be captured by a HEPA filter, a HEPA filter type is used.

In FIG. 1, inside the blowers 55 and 56, there is a DC motor (brushless DC motor) (not shown), which is more energy efficient than an AC motor and whose rotation speed can be controlled over a wider range, and a sirocco fan (not shown). ) is provided. When the air volume is set using a switch (not shown), air is sucked from the suction ports 42 and 43 through the ducts 70 and 76 by the rotation of the sirocco fan, and the sucked air is sent to the ducts 71 and 77 and the branch pipe. 60, 61, ducts 72, 73, 78, and 79, and is blown out from the air outlet 50 in the living room 20, the air outlet 52 in the guest room 22, the air outlet 51 in the bedroom 21, and the air outlet 53 in the children's room 23.
The amount of air blown to each of the living room 17, guest room 22, bedroom 18, and children's room 23 is determined based on the volume of each room. Then, determine the specifications and number of blowers, the size and number of suction ports and outlets, the specifications of branch pipes, etc. that can ensure the total airflow amount by adding up the airflow amounts of each blower. The amount of air required for air conditioning is at least 10 m ³ /h per 2.5 m ³ room, ideally about 25 m ³ /h, and the amount of air blown should be adjusted depending on the size of the room and the air conditioning load such as solar radiation. adjust.
If the amount of air required for air purification satisfies the amount of air needed for air conditioning, the total amount of air blown from the suction ports 42 and 43 will flow directly into the air purifying bypass suction air passages 165 and 166. Even if the air volume ratio is 50%, the number of times each room is cleaned is 0.8 times/h to 2.1 times/h, and all the air in the room is cleaned at least once every 1.3 hours. Since it is clean, we believe that a sufficient air environment can be obtained.

The air conditioning capacity of the air conditioners on the first floor and the air conditioners on the second floor is determined by calculating the air conditioning loads of the rooms to be air conditioned and adding them up.
In other words, air conditioning load calculations include heat transferred from walls, windows, ceilings, etc. of the target room, radiant heat from sunlight passing through window glass, heat and moisture generated by occupants, and heat generated from lighting and mechanical equipment. Calculate the amount of heat and moisture due to heat, intake outside air, and drafts as air conditioning load (Yamada Chiten, “Refrigerating and Air Conditioning”, Japan, Yokendo Co., Ltd., March 20, 1975, p. 240-247) . Then, a margin is given to this load calculation result, and the air conditioner on the first floor and the air conditioner on the second floor are selected from among the air conditioners lined up based on their capacity, and the rooms, etc. are air-conditioned.
In this embodiment, the total floor area of the entrance hall 17, living room 20, and guest room 22 on the first floor 4 and the total floor area of the stair landing 18, bedroom 21, and children's room 23 on the second floor 5 are each approximately 50 m2, and the ceiling height is approximately 50 m2. The height is 2.4 m, and air conditioners with a cooling capacity equivalent to 2.2 kW are installed in the entrance hall 17 and the stair landing 18.
The amount of air blown to the living room 20, guest room 22, bedroom 21, and children's room 23 is each 175 m ³ /h, and the total amount of air blown to the first floor 4 and second floor 5 is 350 m ³ /h each, and the appropriate blower 55, 56, and suction ports 42 and 43 are selected and installed.

In the above configuration, for the entrance hall 17, living room 20, and guest room 22 on the first floor 4, and for the stair landing 18, bedroom 21, and children's room 23 on the second floor 5, heating operation, cooling operation, air purification operation, and outside air intake are performed, respectively. When performing indoor air exhaust, etc., we will explain the operating status of each device and the way the wind flows, using the entrance hall 17 on the 1st floor 4 as a representative, but the same explanation will apply to the landing 18 of the stairs on the 2nd floor 5. .

FIG. 5 is a flow chart of the wind in the entrance hall 17 when priority is given to heating other rooms.
In winter, when the outside temperature is about 7 degrees Celsius, the entrance hall 17, living room 20, and guest room 22 are not being heated, and I want to warm the living room 20 and guest room 22 where the air conditioner indoor unit 15 is not installed, but the entrance hall 17 When there is no need to heat the air conditioner, this is called heating other room priority operation, but the room temperature in the entrance hall 17 is low at about 15 degrees Celsius because it is not heated, and the air conditioner indoor unit 15 is operated by remote control (not shown). Then, I set the temperature to a high 22 degrees Celsius, set the air volume to high, and started the heating operation. Then, by setting the angle of the wind direction louver 145, the angle of the blowing airflow 170 is adjusted to "vertically downward (90 degrees)" or "15 degrees (105 degrees) from vertically downwards to the wall side", and the blower 55 blows the air. The air conditioner is operated at a strong air volume of 350 m ³ /h, and a suction airflow 171 is generated that is sucked into the suction port 42 provided below the air conditioner indoor unit 15 .
The air at 15°C sucked in from the suction port 142 of the indoor air conditioner unit 15 is detected by a suction air temperature sensor (not shown), and the air temperature is 15°C, the remote controller set temperature is 22°C, and the air volume is set to high. The inverter drive frequency of the compressor (not shown) is driven at a high frequency to control the electric expansion valve (not shown), the outdoor blower (not shown), etc. (not shown) to increase the heating capacity of the air conditioner on the first floor, and raise the temperature of the airflow 170 from the air conditioner indoor unit 15 to 35°C. Adjust to

The blowing airflow 170 has a strong air volume of about 10 m ³ /min (600 m ³ /h) during heating operation, and because the temperature is 35° C., it is 1 m below the air outlet 140 of the air conditioner indoor unit 15 and has a wind speed of about 2 m/s. 2 m below, the wind speed is approximately 1 m/s, and at the position of the suction port 42 installed above the horizontal center of the air conditioner indoor unit 15 and below the installed wall 33 at a height of approximately 1 m or less, The airflow 170 is decelerated to a wind speed of 1 to 2 m/s, and due to the wind speed of the suction airflow 171 of the suction port 42 of 1 to 2 m/s, more than 50% of the outlet airflow 170 becomes the suction airflow 171, which is sucked in at the suction port 42. The temperature of the air is set to approximately 32°C, which is 17K higher than the room temperature of 15°C in the entrance hall 17, and the air is passed through the duct 70, blower 55, duct 71, branch pipe 60, ducts 72, 73, and from the air outlets 50, 52. , each blows out 175 m ³ /h of supplied air at about 31° C. to heat the living room 20 and guest room 22 whose room temperature is about 15° C.

The cross-flow fan of the air conditioner indoor unit 15 is characterized by its high straightness and allows the airflow to easily reach long distances, and the sirocco fan of the blower 55 is characterized by its strong resistance to static pressure and its ability to easily suck in air from far away. It is. Since an undercut 86 of a door (not shown) is provided below the wall 175 opposite to the wall 33 where the suction port 42 of the entrance hall 17 is installed, the living room 20, etc., which flows through the undercut 86 When the air conditioner indoor unit 15 is stopped, the return air air flow from the air conditioner indoor unit 15 is directed straight toward the suction port 42 by the operation of the sirocco fan of the blower 55 as a return air air flow 176 indicated by the broken line. When the heating operation is started, the blowout airflow 170 decelerates, and due to the density of the air, a part of the airflow 177 rises while leaving the suction port 42, whereas the return airflow 176 shown by the broken line becomes the return airflow shown by the solid line. 178 and blocks the airflow 177, the straightness of the blowout airflow 170 is further maintained, and most of it becomes the suction airflow 171.

In addition, a ventilation air supply port 125 is installed on the ceiling of the entrance hall 17 near a wall 175 that faces the wall 33 where the suction port 42 is installed, and a heat exchange unit 95 recovers all the heat from the indoor air. 100 m ³ /h of outdoor air is blown out, but even though all the heat is recovered, the temperature is about 12° C., which is lower than the room temperature. 178 and the airflow 177 with low heating capacity that was not sucked into the suction port 42, the air is mixed well in the mixing section 180, becomes fresh air with less _CO2 , and has a temperature of about 17°C, which is slightly higher than room temperature. The entrance hall 17 becomes a comfortable space with uniform temperature and air quality. After that, most of the mixing part 180 becomes the suction airflow 181 sucked into the suction port 142 of the air conditioner indoor unit 15, the blowout airflow 170, and a part , a suction airflow 185 and a suction airflow 171 heading toward the suction port 42 , whereby fresh air is also diffused into the living room 20 and the guest room 22 .
Regarding air purification, part of the air in the suction airflow 171 flows into the air purification suction air passage 160 of the suction port 42, and the air purified by the air purification unit 40 directly flows into the air purification bypass suction air passage 165. It merges with the incoming air, becomes clean supply air, replaces the air in the living room 20 and guest room 22, becomes slightly dirty return air, returns to the entrance hall 17, and repeats the air purification process. As a result, the air cleanliness of the entrance hall 17, living room 20, and guest room 22 is maintained at a high level.
Due to the operation of the heat exchange unit 95, a part of the return air containing the CO ₂ and humidity increased by people from the air conditioned in the room, etc., flows through the louver 135 installed between the toilet 100 and the entrance hall 17. The air is then discharged as an exhaust airflow 186, and the air cleanliness in the entrance hall 17, living room 20, and guest room 22 is maintained at an even higher level.

Also, if you want to heat the living room 20 and the guest room 22 while the entrance hall 17 is being heated, the process is basically the same as the heating other room priority operation shown in FIG. 5 described above, but the entrance hall 17 is being heated. Therefore, the room temperature is a little high at about 20 degrees Celsius, so in order to increase the heating in other rooms while suppressing the heating in my room a little, I set the air conditioner indoor unit 15 to a high temperature setting of 24 degrees Celsius using the remote control (not shown). However, the air volume is set to medium and heating operation continues. Then, by setting the angle of the wind direction louver 145 and adjusting the angle of the outlet airflow 170 to "vertically downward (90 degrees)" and operating the blower 55 at a strong air flow rate of 350 m ³ /h, the air conditioner indoor unit A suction airflow 171 is generated which is sucked into the suction port 42 provided below the air filter 15 .
Air at 20°C sucked in from the suction port 142 of the indoor air conditioner unit 15 is detected by a suction air temperature sensor (not shown), the temperature is 24°C, the remote control setting temperature is 24°C, and the air volume is set. The inverter drive frequency of the compressor (not shown) is driven at a high frequency to control the electric expansion valve (not shown), the outdoor blower (not shown), etc. (not shown) to increase the heating capacity of the air conditioner on the first floor, and raise the temperature of the airflow 170 from the air conditioner indoor unit 15 to 40°C. Adjust to

The blowout airflow 170 has an air volume of about 7m ³ /min (420m ³ /h) during heating operation, and the temperature is 40°C. s, and due to the wind speed of 1 to 2 m/s of the suction airflow 171 at the suction port 42, more than 70% of the blowout airflow 170 becomes the suction airflow 171, and the temperature of the air sucked at the suction port 42 changes to the entrance hall. The air temperature is about 36°C, which is 16K higher than the room temperature of 20°C in No. 17, and 175 m ³ /h of supply air at about 35°C is blown out from the air outlets 50 and 52, respectively, to heat the living room 20 and guest room 22 whose room temperature is about 15°C. Heats more strongly than when other rooms are prioritized.
The air volume of the blowout airflow 170 is smaller than the strong one during the heating other room priority operation, and more than 70% of it becomes the suction airflow 171, and the airflow 177 is small, so the rise in the room temperature of the entrance hall 17 by 20 degrees Celsius is suppressed. When the temperature is only about 22 degrees Celsius, the collision between the airflow 177, the return airflow 178, and the outside airflow 184 promotes mixing, creating a mixing zone 180 with uniform temperature and air quality, creating a comfortable environment in the entrance hall 17. maintained.

FIG. 6 is a flow chart of the wind in the entrance hall 17 when heating is prioritized in one's own room.
If the heating operation of the entrance hall 17 is stable and the living room 20 and the guest room 22 are fine, this is called heating priority operation, but since the heating operation of the entrance hall 17 is stable and the room temperature is high at about 22 degrees Celsius. In order to reduce heating in other rooms while suppressing heating in one's own room, the air conditioner indoor unit 15 is set to a relatively high set temperature of 24° C. using a remote control (not shown), and the air volume is set to medium, and heating operation is continued. Then, the angle of the wind direction louver 145 is set, the angle of the blowing airflow 170 is adjusted from 45° diagonally forward to 60°, and the blower 55 is operated at the medium flow rate of 200 m ³ /h.
The air at 22°C sucked in from the suction port 142 of the indoor air conditioner unit 15 is detected by a suction air temperature sensor (not shown), the temperature of the intake air is 22°C, the remote control set temperature is 24°C, and the set air volume is set to 24°C. The inverter drive frequency of the compressor (not shown) is driven at a low frequency to control the electric expansion valve (not shown), the outdoor blower (not shown), etc., and the heat exchanger of the air conditioner indoor unit 15 is controlled. The enthalpy and circulation amount of the refrigerant flowing into the air conditioner (not shown) are controlled to reduce the heating capacity exerted by the air conditioner on the first floor, and the temperature of the airflow 170 discharged from the air conditioner indoor unit 15 is lowered to 25°C. Adjust to

The airflow 170 is blown out diagonally forward from 45° to 60° at a flow rate of about 7 m ³ /min (420 m ³ /h) during heating operation, at a temperature of 25° C., and is therefore directly sucked into the suction port 42. The collision between the airflow 177, the return airflow 178, and the outside airflow 184 promotes mixing, creating a mixing area 180 with uniform temperature and air quality below the entrance hall, creating a comfortable environment in the entrance hall 17. maintained.
Then, the air flows 185 and 171 are sucked from the mixing part 180 into the suction port 42, and the temperature of the air sucked into the suction port 42 is set to about 23°C, which is 1K higher than the room temperature of the entrance hall 17, which is 22°C. , 52, each blows out 100 m ³ /h of air at about 22°C to heat the living room 20 and guest room 22, whose room temperature is about 15°C, and also cleans the air and introduces outside air, so the room temperature hardly changes. Air quality will improve. Since the power consumption of air conditioners and blowers can be kept low, energy-saving heating operation can be achieved.
In addition, when heating only the entrance hall 17 and not heating the living room 20 and guest room 22, in order to further reduce power consumption, the blower 55 will be stopped. Since outside air cannot be introduced, it is more desirable to operate the blower 55 intermittently, for example, every hour.

FIG. 7 is a flow chart of the wind in the entrance hall 17 when priority is given to cooling other rooms.
In the summer, when the outside temperature is about 35 degrees Celsius, the entrance hall 17, living room 20, and guest room 22 are not being cooled, and the living room 20 and guest room 22 where the air conditioner indoor unit 15 is not installed are wanted to be cool, but the entrance hall 17 When there is no need to cool the air conditioner, this is called cooling other room priority operation, but the room temperature in the entrance hall 17 is high at about 30 degrees Celsius because it is not air-conditioned, and the air conditioner indoor unit 15 is operated by remote control (not shown). ), set the set temperature to a low 25°C, set the air volume to medium, and start cooling operation. Then, the angle of the wind direction louver 145 is set, the angle of the blowing airflow 170 is adjusted from 45° diagonally forward to 60°, and the blower 55 is operated at a strong airflow rate of 350 m ³ /h.
Air at 30°C sucked in from the suction port 142 of the indoor air conditioner unit 15 is detected by a suction air temperature sensor (not shown). The inverter drive frequency of the compressor (not shown) is driven at a high frequency to control the electric expansion valve (not shown), outdoor blower (not shown), etc. (not shown) to increase the cooling capacity of the air conditioner on the first floor, and lower the temperature of the airflow 170 from the air conditioner indoor unit 15 to a lower temperature of 18°C. Adjust to

The blowout airflow 170 has an air volume of about 7m ³ /min (420m ³ /h) during cooling operation, and the temperature is 18° C., so the blowout airflow 170 blows diagonally forward from 45° to 60°, but from the air outlet 140 As the air moves away from the air, the airflow descends vertically downward, and 70% of the airflow becomes the suction airflow 171 that is sucked into the suction port 42, bringing the temperature of the air sucked in through the suction port 42 to the room temperature of the entrance hall 17 at 30°C. On the other hand, the temperature is set to about 20°C, which is 10K lower, and 175 m ³ /h of supplied air at about 21°C is blown out from the air outlets 50 and 52, respectively, to cool the living room 20 and guest room 22 whose room temperature is about 30°C.

An undercut 86 of a door (not shown) is provided below the wall 175 that faces the wall 33 where the inlet 42 of the entrance hall 17 is installed, so that the water from the living room 20 etc. flowing from the undercut 86 is provided. When the air conditioner indoor unit 15 is stopped, the return air air flow is directed straight toward the suction port 42 by the operation of the sirocco fan of the blower 55 as a return air air flow 176 indicated by a broken line. When the cooling operation is started, the discharged airflow 170 partially moves away from the suction port 42 due to the density of the air and descends, whereas the return airflow 176 shown by the broken line becomes the return airflow 178 shown by the solid line. By interrupting the airflow 177, most of the outlet airflow 170 descends vertically from the outlet 140 and becomes an intake airflow 171 in the suction region 190 in front of the inlet 42.
In addition, a ventilation air supply port 125 is installed on the ceiling of the entrance hall 17 near a wall 175 that faces the wall 33 where the suction port 42 is installed, and the heat exchange unit 95 recovers all the heat from the indoor air. The outdoor airflow of about 32° C. flowing downward at a rate of 100 m ³ /h collides with the rising return airflow 178 and the airflow 177 with low cooling capacity that was not sucked into the suction port 42 , causing the mixing section 180 The air is well mixed and has a low CO ₂ content, with a temperature of approximately 28°C, which is slightly lower than room temperature, and the entrance hall 17 becomes a comfortable space with uniform temperature and air quality. are the suction airflow 181 and the blowout airflow 170 that are sucked into the suction port 142 of the air conditioner indoor unit 15, and some of them become the suction airflow 185 and the suction airflow 171 heading toward the suction area 190, so that the fresh air flows into the living room 20 and It also spreads to guest room 22.
The functions and effects of the air cleaning unit 40 and the heat exchange unit 95 are the same as in the heating operation.

Also, when you want to operate the living room 20 and the guest room 22 while cooling the entrance hall 17, the process is basically the same as the operation with priority given to cooling other rooms in FIG. 7, but the entrance hall 17 is being cooled. Therefore, the room temperature is a little low at about 27 degrees Celsius, so in order to suppress the cooling in my room a little while increasing the cooling in other rooms, I set the air conditioner indoor unit 15 to a low setting temperature of 23 degrees Celsius using the remote control (not shown). However, the air volume is set to medium and cooling operation continues. Then, the angle of the wind direction louver 145 is set, the angle of the blowing airflow 170 is adjusted from 45° diagonally forward to 60°, and the blower 55 is operated at a strong airflow rate of 350 m ³ /h.
The air at 27°C sucked in from the suction port 142 of the indoor air conditioner unit 15 is detected by a suction air temperature sensor (not shown), and the temperature is set at 22°C on the remote controller. The inverter drive frequency of the compressor (not shown) is driven at a high frequency to control the electric expansion valve (not shown), outdoor blower (not shown), etc. (not shown) to increase the cooling capacity of the air conditioner on the first floor, and lower the temperature of the airflow 170 from the air conditioner indoor unit 15 to a lower temperature of 16°C. Adjust to

The blowout airflow 170 has an air volume of about 7m ³ /min (420m ³ /h) during cooling operation, and the temperature is 16°C, so the blowout airflow 170 blows diagonally forward from 45° to 60°, but from the air outlet 140 As it moves away, the blowing airflow becomes stronger and descends vertically downward, and 80% of the blowing airflow becomes the suction airflow 171 sucked into the suction port 42, and the temperature of the air sucked in by the suction port 42 is changed to the room temperature 27 of the entrance hall 17. The temperature is set to approximately 18℃, which is 9K lower than that of ℃, and 175m ³ /h of supply air at approximately 19℃ is blown out from the air outlets 50 and 52, respectively, and the living room 20 and guest room 22, which have a room temperature of approximately 30℃, are air-conditioned with priority given to other rooms. Cool the air conditioner more strongly than usual.
The air volume of the blowout airflow 170 inside is the same as when the air conditioner is in other room priority operation, but more than 80% of it becomes the suction airflow 171, and the airflow 177 is smaller, so that the room temperature in the entrance hall 17 is prevented from dropping by 27°C. When the temperature reaches only about 25°C, the collision between the airflow 177, the return airflow 178, and the outside airflow 184 promotes mixing, creating a mixing area 180 with uniform temperature and air quality, making the entrance hall 17 comfortable. The environment is maintained.

FIG. 8 is a flowchart of the wind in the entrance hall 17 when priority is given to cooling one's own room.
If the cooling operation of the entrance hall 17 is stable and the living room 20 and the guest room 22 are doing just fine, this is called a cooling private room priority operation, but since the entrance hall 17 is under stable cooling operation, the room temperature is as low as about 25 degrees Celsius. In order to reduce the cooling of other rooms while suppressing the cooling of the user's own room, the air conditioner indoor unit 15 is set to a low temperature of 23° C. using a remote control (not shown), and the airflow is kept low to continue the cooling operation. Then, the angle of the wind direction louver 145 is set, the angle of the blowing airflow 170 is adjusted to the "horizontal direction (0°)", and the blower 55 is operated at the medium blowing rate of 200 m ³ /h.
The air at 25°C sucked in from the suction port 142 of the indoor air conditioner unit 15 is detected by a suction air temperature sensor (not shown), and the temperature is set at 23°C on the remote controller. The inverter drive frequency of the compressor (not shown) is driven at a low frequency to control the electric expansion valve (not shown), the outdoor blower (not shown), etc., and the heat exchanger of the air conditioner indoor unit 15 is controlled. The enthalpy and circulation amount of the refrigerant flowing into the air conditioner (not shown) are controlled to reduce the cooling capacity exerted by the air conditioner on the first floor, and the temperature of the airflow 170 discharged from the air conditioner indoor unit 15 is raised to 22°C. Adjust to

The blowing airflow 170 is blown out at a temperature of 22° C. at a horizontal direction of 0° at a flow rate of about 5 m ³ /min (300 m ³ /h), which is slightly lower than that of air conditioning operation, so that it is not directly sucked into the suction port 42. Mixing due to collision between the blowout airflow 170, the return airflows 176 and 178, and the outside airflow 184 is promoted, and a mixing area 180 with uniform temperature and air quality is generated in the entrance hall, and a comfortable environment is maintained in the entrance hall 17. Ru.
Then, the air flows 185 and 171 are sucked from the mixing part 180 into the suction port 42, and the temperature of the air sucked into the suction port 42 is set to about 24°C, which is 1K lower than the room temperature of the entrance hall 17, which is 25°C. , 52, each blows out air at a rate of 100 m ³ /h at about 25°C to cool the living room 20 and guest room 22, whose room temperature is about 30°C, and also purifies the air and introduces outside air, so the room temperature hardly changes. Air quality will improve. Since the power consumption of air conditioners and blowers can be kept low, energy-saving cooling operation can be achieved.
Note that when only the entrance hall 17 is being cooled and the living room 20 and guest room 22 are not being cooled, the blower 55 can be stopped to further reduce power consumption. Since outside air cannot be introduced, it is more desirable to operate the blower 55 intermittently, for example every hour.

In this way, depending on individual preference, rooms with air conditioners can be adjusted to a uniform temperature within the room, and rooms without air conditioners can also be made comfortable by adjusting the temperature. As a result, an air conditioning system with low power consumption can be obtained.
Furthermore, because there is a clear way to return from a room without an air conditioner to a room with an air conditioner, the amount of air blown by the blower remains stable even when the door is closed, and the temperature of the air sucked into the air conditioner remains stable. As a result, the temperature of the blown air stream is stabilized, so the power consumption and noise of the blower do not increase, and an air conditioning system that reliably warms/cools can be obtained.
In addition to controlling the temperature mentioned above, at the same time, for air purification such as removing dust, a blower is operated to supply air from a room with an air conditioner to a room without an air conditioner, and return air. By circulating the air through the channels, the air in both rooms can be purified, improving air quality.
In addition, since the suction port is located below the indoor air conditioner unit, it is easy to suck in dust that is biased toward the lower part of the room. The suction efficiency is also improved.
Furthermore, since the air purifying unit can be taken out from in front of the suction port below the indoor air conditioner unit, regular maintenance can be easily performed without providing an inspection port or using a ladder or the like.

In this embodiment, the entrance hall 17 and stair landing 18 are the rooms in which the air conditioner indoor unit is installed, which are relatively small spaces, rooms that are always unoccupied, and are surrounded by living rooms on the first and second floors. This is done because the room has stairs connecting the floors. Relatively small spaces have more capacity when air conditioning other rooms, and if the wall facing the air conditioner is close, the airflow from the air conditioner hits the wall and is easily sucked into the inlet, improving air conditioning capacity in other rooms. However, if you live in a room where no one is always present, you won't have to worry about the noise from the indoor air conditioner unit, the draft feeling from the airflow, or the noise coming in from the inlet. This is because in a room with stairs, the air on the first floor and the air on the second floor can easily convect and circulate, making it easier to maintain uniformity.
However, by installing an indoor air conditioner unit in a room where there are always people and where there is a lot of time for air conditioning, such as the living room 20 or children's room 23, it is possible to reduce the cost of air conditioning unoccupied rooms. In particular, it is necessary to select the air conditioner and blower and the positional relationship of each device, taking into account the size of the room in which it will be installed, comfort such as noise and draft feeling, etc. Specifically, in order to reduce noise, the opening of the suction port is made larger, the length of the duct is kept to the minimum necessary, a noise-reducing duct is used, the air volume of the blower is increased by one rank, and the capacity of the air conditioner is increased by one rank. However, the location away from the wall where the indoor air conditioner unit and air intake are installed should be a place where people are always present.

Further, in this embodiment, ventilation air intake ports 125 and 126 are provided on the ceilings of the entrance hall 17 and the stair landing 18 to blow out outdoor air into the building 3. No, in the summer, slightly hot air is blown out, and in the winter, slightly cold air is blown out, so as mentioned above, install the air conditioner in rooms such as living room 20 and children's room 23, which are always occupied and require a lot of air conditioning. If this happens, comfort will be impaired due to a drafty feeling, so in that case, it is desirable to install a ventilation inlet in the middle of the return air path, for example in a hallway, avoiding rooms where people are always present.
Alternatively, downstream of the blowers 55, 56 and upstream of the air outlets 50, 51, 52, 53, the air supply ducts B130, 131 through which the outdoor air after heat exchange passes are merged together with the air-conditioned supply air. However, the system must be designed so that outdoor air does not flow backwards when the blower is stopped.

In this embodiment, air outlets are provided in the living room 20, bedroom 21, guest room 22, and children's room 23, and one air conditioning system has two air outlets. It may be installed in toilets, bathrooms, kitchens, etc., and as non-occupied rooms, it can be installed in entrance halls 17, stair landings 18, attic spaces 9, under-floor spaces 10, under stairs, machine rooms, hallways, storerooms, closets, shoe cabinets, etc. A blower outlet may be provided, and one air conditioning system may have one blower outlet or three or more blowers. In that case, depending on the size and number of rooms, etc., the selection and number of air conditioners and blowers, the diameter, number, and length of the ducts, the opening area and number of suction ports, and the opening of return air ports such as undercuts, etc. It is necessary to design the system by paying attention to the area, number of air conditioners, and the positional relationship of air conditioners, suction ports, return air ports, etc.

In this embodiment, the return air port 86 is an undercut of the door, but it may also be an exhaust louver, a bypass duct, etc., and it is necessary to ensure an opening area corresponding to the amount of return air. Furthermore, if the pressure loss in the return air path is large and the return air volume is insufficient, such as because the necessary opening area cannot be secured, the volume of return air may be forcibly secured using a blower, ventilation fan, or the like.
In this embodiment, the air outlets 50, 51, 52, and 53 are air supply grilles that blow out conditioned air, and the wind direction can be changed, and they are installed on the ceiling. It is desirable to install it in a far position facing the return air opening such as an undercut, but it may also be installed in a wall or floor at a slightly lower position depending on the blowing wind speed.

In this embodiment, the blower 55 is installed in the ceiling, and an inspection hole is provided in the ceiling directly below the blower 55, so that maintenance and repairs can be performed from the room by removing the inspection hole from the room side. However, if the duct is short and repair and maintenance is possible, it may be installed inside the wall or under the floor.
In this embodiment, the suction port 42 is provided in the wall 33 below the air conditioner indoor unit 15. Below the air outlet 140 of the indoor unit 15, the outlet airflow 170 is different from the intake airflow 171 of the inlet 42. You can install it on the floor as long as it can be reached, or you can install it not only in one place but in two places, the wall and the floor, so that it can be sucked in.

In this embodiment, the suction port 42 and the blower 55 are provided separately, but the blower 55 may also serve as the suction port 42 and may be installed as an integral unit so as to open in a wall or the like. In that case, the suction area becomes smaller, which may cause problems such as an increase in noise such as direct audible fan noise, and because the air purifying unit 40 is housed inside, the air purifying unit 40 becomes large and has poor workability.
In this embodiment, outdoor air is blown directly from the heat exchange unit 95 into the entrance hall 17 from the ventilation air supply port 125, but the outdoor air after heat exchange is directly connected to the suction port 42 to purify the air. After the air is purified by the unit 40, it is circulated between rooms together with the indoor air by the blower 55, and the outdoor air is further purified before being introduced into the building 3, resulting in healthy and safe air quality. However, consider the possibility that the indoor air intake volume may be reduced, the indoor air conditioning capacity may be reduced, and reliability issues may occur due to outdoor air passing through the air purification unit. There is a need.

(Embodiment 2)
FIG. 9 is a sectional view of the suction port in Embodiment 2 of the present invention.
Embodiment 2 differs from Embodiment 1 in the configurations such as the installation position of the suction inlet and the suction inlet, the duct connection, etc., and as a result, the operation and effect are different.Hereinafter, only the different parts will be explained. Portions not explained are basically the same as in the first embodiment.

As shown in the figure, the suction ports 200 and 201 (suction port E) are suction louvers with external dimensions of 450 mm * 450 mm and have a suction area suitable for sucking in the air volume of approximately 350 m ³ /h, which is the air volume of the blowers 55 and 56. 202, 203 and main bodies 205, 206, and includes pre-filters 210, 211, air cleaning units 40, 41, suction parts 212, 213, power supply part (not shown), and air cleaning suction air passages 214, 215. , air cleaning parts 216, 217, duct suction parts 220, 221, dampers 222, 223 that can adjust the air volume of the suction from the duct suction parts 220, 221 and the suction from the suction parts 212, 213, and the main body 205. , 206 have duct connection portions 167 and 168 on the upper sides thereof.

The dampers 222 and 223 are movable by electric motors, and from a state in which the suction parts 212 and 213 are completely closed and the duct suction parts 220 and 221 are completely open, to a state in which the suction parts 212 and 213 are completely opened and the duct suction parts are completely opened. 220, 221 are stopped at multiple angles between the completely closed states, and the amount of air sucked in from the suction parts 212, 213 and flowing into the air purifying suction air passages 214, 215 and the amount of air sucked in from the duct suction parts 220, 221 are changed. Therefore, the amount of air flowing into the air purifying suction air passages 214 and 215 can be adjusted.
The air cleaning units 40 and 41 are electrostatic precipitator filters that filter at least one of the air sucked in from the suction parts 212 and 213 and the air sucked in from the duct suction parts 220 and 221. In Step 41, fine particles with a particle size of 0.3 μm or more, such as airborne mold spores, dirt, pollen, yellow sand, and PM2.5, are removed. Then, from the duct connecting portions 167 and 168, the air passes through the ducts 70 and 76 to the blowers 55 and 56.
Pre-filters 210, 211 and air purifying units 40, 41 require maintenance such as regular cleaning, so they should be installed at suction ports 200, 201 installed at a higher position than air conditioner indoor units 15, 16, such as on the ceiling of the room. After removing the suction louvers 202, 203 from the main bodies 205, 206 using springs, etc., easily remove the pre-filters 210, 211, and remove the air purifying units 40, 41 by their handles. It has a structure that allows it to be pulled downward from 216 and 217. After maintenance, the structure can be easily assembled by reversing the process.

In this embodiment, electric dust collection type air cleaning units 40 and 41 are used, but a HEPA filter type that passes through a fine filter paper such as a HEPA filter ( High Efficiency Particulate Air Filter) may also be used. The selection may be made depending on the type and degree of dust, bacteria, harmful substances, etc. to be removed, the amount and speed of air passing through, the frequency of maintenance such as cleaning, noise, etc. For example, if the target is a virus with a particle size of 0.1 μm or more that can be captured by a HEPA filter, a HEPA filter type is used.

FIG. 10 is a flow chart of the wind in the entrance hall 17 when priority is given to heating other rooms.
The air conditioning system on the first floor 4 has a suction port 200 (suction port E) on the ceiling in front of the air conditioner indoor unit 15 at the center of the air conditioner indoor unit 15 in the left and right direction in the entrance hall 17, and on the floor in front of it. A suction port 230 (suction port D) is installed above the center of the air conditioner indoor unit 15 in the left-right direction.
The suction port 230 is composed of a suction louver 231 and a main body 232 with external dimensions of 450 mm * 450 mm, which have a suction area suitable for sucking in approximately 350 m ³ /h, and has a pre-filter (not shown) inside. , a duct connection part (not shown) is provided at the lower side of the main body 232.
The duct connection portion of the suction port 230 and the duct connection portion 220 of the suction port 200 are connected by a duct 236 that passes under the floor, inside the wall 33, and under the ceiling. The rest is the same as in Embodiment 1, and a similar air conditioning system is also provided on the second floor 5.

In winter, when the outside temperature is about 7 degrees Celsius, the entrance hall 17, living room 20, and guest room 22 are not being heated, and I want to warm the living room 20 and guest room 22 where the air conditioner indoor unit 15 is not installed, but the entrance hall 17 When there is no need to heat the air conditioner, this is called heating other room priority operation, but the room temperature in the entrance hall 17 is low at about 15 degrees Celsius because it is not heated, and the air conditioner indoor unit 15 is operated by remote control (not shown). Then, I set the temperature to a high 22 degrees Celsius, set the air volume to high, and started the heating operation. Then, by setting the angle of the wind direction louver 145, the angle of the blowing airflow 170 is adjusted to the "horizontal direction (0°)".
The damper 222 of the suction port 200 is operated, the suction parts 212 and 213 are completely opened, the duct suction parts 220 and 221 are completely closed, and the blower 55 is operated at a strong air flow rate of 350 m ³ /h. Therefore, no air is sucked in from the suction port 230 installed on the floor, and all 350 m ³ /h is sucked in from the suction port 200 installed on the ceiling.
The air at 15°C sucked in from the suction port 142 of the indoor air conditioner unit 15 is detected by a suction air temperature sensor (not shown), and the temperature is set at 22°C on the remote controller. The inverter drive frequency of the compressor (not shown) is driven at a high frequency to control the electric expansion valve (not shown), outdoor blower (not shown), etc. (not shown) to increase the heating capacity of the air conditioner on the first floor, and raise the temperature of the airflow 170 from the air conditioner indoor unit 15 to 35°C. Adjust to

The airflow 170 blows out horizontally from the air outlet 140 of the air conditioner indoor unit 15 because the air flow rate is about 10 m ³ /min (600 m ³ /h), which is strong during heating operation, and the temperature is 35° C., and then, The blowout airflow 170 increases due to the density of the air, and at the position of the installed suction port 200, the blowout airflow 170 is decelerated to a wind speed of 1 to 2 m/s. More than 70% of the airflow 170 becomes the suction airflow 171, and the temperature of the air sucked in at the suction port 200 is set to approximately 34°C, which is 19K higher than the room temperature of 15°C in the entrance hall 17, and the duct 70, blower 55, duct 71, The air is blown out through the branch pipe 60 and ducts 72 and 73 from the air outlets 50 and 52 at a rate of 175 m ³ /h at about 33° C., strongly heating the living room 20 and guest room 22 whose room temperature is about 15° C.
Although there is a small amount of air that is not sucked into the suction port 200 by the blowout airflow 170, the collision between the return airflow 178 and the outside airflow 184 promotes mixing, and the temperature and air quality are improved by only increasing the temperature to about 17°C. A uniform mixing part 180 is generated in the entrance hall, and the condition of the entrance hall 17 before operation is maintained.

FIG. 11 is a flow diagram of the wind in the entrance hall 17 when both rooms are heated.
If you want to heat the living room 20 and guest room 22 while heating the entrance hall 17, the room temperature is a little high at about 20 degrees Celsius because the entrance hall 17 is being heated, so while heating the entrance hall 17 is being heated, the room temperature is a little high at about 20 degrees Celsius. In order to strengthen the heating of the room, the air conditioner indoor unit 15 is set to a relatively high set temperature of 24° C. using a remote control (not shown), the air volume is set to medium, and the heating operation is continued. Then, by setting the angle of the wind direction louver 145, the angle of the blowing airflow 170 is adjusted from "45 degrees diagonally forward to 60 degrees."
The damper 222 of the suction port 200 is operated, the suction parts 212 and 213 are completely opened, the duct suction parts 220 and 221 are completely closed, and the blower 55 is operated at a strong air flow rate of 350 m ³ /h. Therefore, no air is sucked in from the suction port 230 installed on the floor, and all 350 m ³ /h is sucked in from the suction port 200 installed on the ceiling.
Air at 20°C sucked in from the suction port 142 of the indoor air conditioner unit 15 is detected by a suction air temperature sensor (not shown), the temperature is 24°C, the remote control setting temperature is 24°C, and the air volume is set. The inverter drive frequency of the compressor (not shown) is driven at a high frequency to control the electric expansion valve (not shown), outdoor blower (not shown), etc. (not shown) to increase the heating capacity of the air conditioner on the first floor, and raise the temperature of the airflow 170 from the air conditioner indoor unit 15 to 40°C. Adjust to

The airflow 170 is approximately 7m ³ /min (420m ³ /h), which is the air volume during heating operation, and the temperature is 40°C, so the airflow is blown diagonally forward from 45°C to 60°C from the air outlet 140 of the air conditioner indoor unit 15. The airflow becomes 170, and then increases due to the density of the air, and more than 80% of the blowout airflow 170 becomes the suction airflow 171, raising the temperature of the air sucked in at the suction port 200 by 18K higher than the room temperature of the entrance hall 17, which is 20°C. +10K or more, approximately 38℃, and blows out 175m ³ /h of supply air at approximately 37℃ from the air outlets 50 and 52, respectively, to heat the living room 20 and guest room 22, which have a room temperature of approximately 15℃, more than when heating is given priority to other rooms. Heat strongly.
Although there is a small amount of air that is not sucked into the suction port 200 by the blowout airflow 170, the collision between the return airflow 178 and the outside airflow 184 promotes mixing, and the temperature rises to about 22°C, making the temperature and air quality uniform. The mixing part 180 is generated below the entrance hall by blowing out the airflow 170 obliquely forward from 45° C. to 60° C., making the entrance hall 17 a more comfortable space.

FIG. 12 is a flow chart of the wind in the entrance hall 17 when heating is prioritized in one's own room.
If the heating operation of the entrance hall 17 is stable and the living room 20 and the guest room 22 are fine, this is called heating priority operation, but since the heating operation of the entrance hall 17 is stable and the room temperature is high at about 22 degrees Celsius. In order to suppress the heating in the other room while suppressing the heating in the own room, basically operate the air conditioner indoor unit 15 with the same settings as in the heating operation for both rooms described above, and adjust the set temperature by controlling the air conditioner indoor unit 15 with a remote control (not shown). Set it to a high temperature of 24℃.
The damper 222 of the suction port 200 is operated to an angle of about 45°, the suction part 212 and the duct suction part 220 are each half opened, and the blower 55 is operated at the air flow rate of 200 m ³ /h, so that the ceiling Approximately 100 m ³ /h is sucked in from the suction port 200 installed on the floor, and approximately 100 m ³ /h is sucked in from the suction port 230 installed on the floor. 190 is generated, and the temperature difference between the upper and lower sides of the entrance hall 17 is reduced to make it more comfortable.
Then, the room temperature is set to about 23°C, which is 1K higher than the room temperature of 22°C in the entrance hall 17, and 100 m ³ /h of air at about 22°C is blown out from the air outlets 50 and 52, respectively, to the living room 20 and guest room whose room temperature is about 15°C. 22 is heated as usual, and at the same time air is purified and outside air is brought in, the room temperature hardly changes and the air quality improves. Since the power consumption of air conditioners and blowers can be kept low, energy-saving heating operation can be achieved.

FIG. 13 is a flow chart of the wind in the entrance hall 17 when priority is given to cooling other rooms.
In the summer, when the outside temperature is about 35 degrees Celsius, the entrance hall 17, living room 20, and guest room 22 are not being cooled, and the living room 20 and guest room 22 where the air conditioner indoor unit 15 is not installed are wanted to be cool, but the entrance hall 17 When there is no need to cool the air conditioner, this is called cooling other room priority operation, but the room temperature in the entrance hall 17 is high at about 30 degrees Celsius because it is not air-conditioned, and the air conditioner indoor unit 15 is operated by remote control (not shown). ), set the set temperature to a low 25°C, set the air volume to medium, and start cooling operation. Then, by setting the angle of the wind direction louver 145, the angle of the blowing airflow 170 is adjusted from "45 degrees diagonally forward to 60 degrees."
The damper 222 of the suction port 200 is operated, the suction part 212 is completely closed, the duct suction part 220 is completely opened, and the blower 55 is operated at a strong airflow rate of 350 m ³ /h, so that there is no airflow on the floor. All 350 m ³ /h is sucked in from the installed suction port 230.
Air at 30°C sucked in from the suction port 142 of the indoor air conditioner unit 15 is detected by a suction air temperature sensor (not shown). The inverter drive frequency of the compressor (not shown) is driven at a high frequency to control the electric expansion valve (not shown), outdoor blower (not shown), etc. (not shown) to increase the cooling capacity of the air conditioner on the first floor, and lower the temperature of the airflow 170 from the air conditioner indoor unit 15 to a lower temperature of 18°C. Adjust to

The blowout airflow 170 has an air volume of about 7m ³ /min (420m ³ /h) in the cooling operation, and the temperature is 18°C, so the blowout airflow 170 blows diagonally forward from 45° to 60°, and is affected by the density of the air. Including, 80% of the outflow airflow becomes the suction airflow 171 that is sucked into the suction port 230, and the temperature of the air sucked into the suction port 230 is set to about 19°C, which is 11K lower than the room temperature of the entrance hall 17, which is 30°C. 175 m ³ /h of supplied air at about 20° C. is blown out from the blow-off ports 50 and 52, respectively, to more strongly cool the living room 20 and guest room 22 whose room temperature is about 30° C.
Since most of the blown airflow 171 is sucked into the suction port 230, the temperature in the entrance hall 17 is only slightly lowered, and the living room 20 and guest room 22 are more efficiently cooled.

FIG. 14 is a flow diagram of the wind in the entrance hall 17 when both rooms are cooled.
If you want to cool the living room 20 and the guest room 22 while the entrance hall 17 is being cooled, it is basically the same as the cooling operation given priority to other rooms in FIG. 13, but since the entrance hall 17 is being cooled. Since the room temperature is a little low at about 27 degrees Celsius, in order to suppress the cooling in my room a little while increasing the cooling in other rooms, I set the air conditioner indoor unit 15 to a low setting temperature of 23 degrees Celsius using a remote control (not shown). Cooling operation continues with the air volume set to medium. Then, by setting the angle of the wind direction louver 145, the angle of the blowing airflow 170 is adjusted to "from 30 degrees diagonally forward to 45 degrees."
The damper 222 of the suction port 200 is operated, the suction part 212 is completely closed, the duct suction part 220 is completely opened, and the blower 55 is operated at a strong air flow rate of 350 m ³ /h, so that the floor All 350 m ³ /h is sucked in from the installed suction port 230.
The air at 27°C sucked in from the suction port 142 of the indoor air conditioner unit 15 is detected by a suction air temperature sensor (not shown). The inverter drive frequency of the compressor (not shown) is driven at a high frequency to control the electric expansion valve (not shown), the outdoor blower (not shown), etc. (not shown) to increase the cooling capacity of the air conditioner on the first floor, and lower the temperature of the airflow 170 from the air conditioner indoor unit 15 to a lower temperature of 16°C. Adjust to

The blowout airflow 170 has an air volume of about 7m ³ /min (420m ³ /h) during cooling operation, and the temperature is 16°C, so the blowout airflow 170 blows diagonally forward from 30° to 45°, but from the air outlet 140 As the distance increases, the blowout airflow 171 becomes stronger and falls vertically downward, and 80% of the blowout airflow becomes the suction airflow 171 that is sucked into the suction port 230. The temperature is about 17°C, which is 10K lower than 27°C, and 175 m ³ /h of air at about 18°C is blown out from the air outlets 50 and 52, giving priority to other rooms in cooling the living room 20 and guest room 22, where the room temperature is about 30°C. Cools more strongly than when driving.
The air volume of the blowout airflow 170 inside is the same as when the air conditioner is operating with priority given to other rooms, but more than 80% of it becomes the suction airflow 171, which prevents the room temperature in the entrance hall 17 from dropping from 27°C to about 25°C. This promotes mixing due to the collision between the outlet airflow 170, the return airflow 178, and the outside airflow 184, and because the blowing angle of the outlet airflow 170 is as high as 30° to 45°, the air quality is uniform with less difference in upper and lower temperatures. Due to the generation of the mixing part 180, the entrance hall 17 becomes a comfortable environment.

FIG. 15 is a flow chart of the wind in the entrance hall 17 when priority is given to cooling one's own room.
If the cooling operation of the entrance hall 17 is stable and the living room 20 and the guest room 22 are fine, this is called a cooling private room priority operation, but since the entrance hall 17 is under stable cooling operation, the room temperature is as low as about 25 degrees Celsius. In order to reduce the cooling of other rooms while suppressing the cooling of one's own room, the air conditioner indoor unit 15 is basically operated with the same settings as in the above-mentioned double room cooling operation, and the set temperature is set by controlling the air conditioner indoor unit 15 with a remote control (not shown). Set it to a low temperature of 23℃.
The damper 222 of the suction port 200 is operated to an angle of about 45°, the suction part 212 and the duct suction part 220 are each half opened, and the blower 55 is operated at an air flow rate of 200 m ³ /h, so that the ceiling Approximately 100 m ³ /h is sucked in from the suction port 200 installed on the floor, and approximately 100 m ³ /h is sucked in from the suction port 230 installed on the floor. 240 is generated to reduce the temperature difference between the upper and lower sides of the entrance hall 17, making it more comfortable.
Then, the temperature is set to about 24°C, which is 1K lower than the room temperature of 25°C in the entrance hall 17, and 100 m ³ /h of supplied air at about 25°C is blown out from the air outlets 50 and 52, respectively, to the living room 20 and guest room whose room temperature is about 30°C. 22 is cooled as needed, and at the same time air is purified and outside air is introduced, the room temperature hardly changes and the air quality improves. Since the power consumption of air conditioners and blowers can be kept low, energy-saving heating operation can be achieved.

In this way, the temperature of both rooms with and without air conditioners can be adjusted according to individual preference, and the temperature difference between the top and bottom of rooms with air conditioners can be reduced, making the room more comfortable. By utilizing the rising air density, especially during heating, the operation of air conditioners and blowers becomes more efficient, resulting in an air conditioning system that consumes less power.
Furthermore, because there is a clear way to return from a room without an air conditioner to a room with an air conditioner, the amount of air blown by the blower remains stable even when the door is closed, and the temperature of the air sucked into the air conditioner remains stable. As a result, the temperature of the blown air stream is stabilized, so the power consumption and noise of the blower do not increase, and an air conditioning system that reliably warms/cools can be obtained.
In addition to controlling the temperature mentioned above, at the same time, for air purification such as removing dust, a blower is operated to supply air from a room with an air conditioner to a room without an air conditioner, and return air. By circulating the air through the channels, the air in both rooms can be purified, improving air quality.
In addition, since the suction ports are installed on the ceiling and floor of the room, it is easy to suck in the dust that is biased toward the lower part of the room and the dust that is kicked up. , the suction efficiency of the suction port is also improved.
Furthermore, since the air purifying unit can be taken out from below the ceiling of the room, regular maintenance can be easily performed without providing an inspection port.

In this embodiment, the suction port 230 and the suction port 200 are connected in series and connected to the blower 55, and the suction port 200 is provided with a damper that adjusts the air volume of the suction port, but the suction area is increased to reduce pressure loss. In order to reduce noise by increasing the suction air volume, the two suction ports may be connected in parallel to the blower 55, and dampers may be provided to adjust the respective suction air volumes.

(Embodiment 3)
FIG. 16 is a sectional view of a building showing the configuration of an air conditioning system according to Embodiment 3 of the present invention.
Embodiment 3 differs from Embodiment 1 in the configurations such as the installation position of the suction port, specifications of the blower, outdoor air introduction path, branch pipe, duct connection, etc., and as a result, the operation and effect are different. Hereinafter, only the different parts will be explained, and the parts not explained are basically the same as in the first embodiment.

As shown in the figure, air conditioning systems 301 and 302 are installed on the first floor 4 and second floor 5 of a two-story building 3, which is a highly airtight and highly insulated house. are doing.
As for the configuration of the air conditioning systems 201 and 202, in the entrance hall 17 and the staircase landing 18, the ceiling is within 1 m in front of the air conditioner indoor units 15 and 16, and the air is placed above the horizontal center of the air conditioner indoor units 15 and 16. Suction ports 305 and 306 (suction port F) having cleaning units 40 and 41 inside are installed in the ceilings 44, 45, 46, and 47 of the living room 20, bedroom 21, guest room 22, and children's room 23 (space B), respectively. , air outlets 50, 51, 52, and 53 are installed. In order to blow out the air sucked in by the suction ports 305, 306 from the blow-off ports 50, 51, 52, 53, blowers 355, 356 and branch pipes 360, 361 are installed in the attic spaces 62, 63, and ducts 70, 71, 72 and 73 are passed into the attic space 62, and ducts 76, 77, 78, and 79 are passed into the attic space 63. The suction port 305, the blower 355, the branch pipe 360, and the outlets 50, 52 are connected airtightly by the ducts 70, 71, 72, 73, and the suction port 306, the blower 356, the branch pipe 361, and the outlets 51, 53 are connected airtightly. are airtightly connected by ducts 76, 77, 78, and 79.
Further, heat exchange units 95 and 96 are provided in the attic spaces 62 and 63, respectively, and the heat exchange air units 95 and 96 and branch pipes 360 and 361 are connected in an airtight manner through air supply ducts B330 and 331, respectively.

The other outdoor air introduction passages and indoor air discharge passages are the same as in the first embodiment.
The configuration of the branch pipes 360, 361 will be described later, but in the branch pipes 360, 361, air sucked in by the blowers 355, 356 at the suction ports 305, 306 and outdoor air heat exchanged by the heat exchange units 95, 96 are mixed. The mixed air is blown out from the blow-off ports 50, 51, 52, and 53.
The basic configuration of the blowers 355 and 356 is the same as the blowers 55 and 56 of Embodiment 1, but the maximum air flow rate (strong notch ) has been increased from 350m ³ /h to 500m ³ /h.
The suction ports 305 and 306 (suction port F) are the same as the suction ports 42 and 43 (suction port C) in the first embodiment, and in the first embodiment, they are installed on the wall, but in the present embodiment, they are installed on the wall. It is installed on the ceiling and sucks in approximately 500 m ³ /h, which is the maximum air flow rate of the blowers 355 and 356. Therefore, in cases of high noise, it is necessary to increase the suction area of the suction louvers 150 and 151, or to install an air purifying bypass suction air path. The ratio of the amount of air directly flowing into 165 and 166 may be increased.

The other supply air passages and return air passages are the same as in the first embodiment.
The supply air duct on the first floor and the return air duct on the first floor are connected, and on the 1st floor 4, the air conditioned air is a mixture of the air blown out from the air conditioner indoor unit 15 in the entrance hall 17 and the air in the entrance hall 17. The supplied air is sucked in from the suction port 305, passes through the duct 70, the blower 355, and the duct 71, and flows into the branch pipe 360, and is mixed with the outdoor air heat exchanged by the heat exchange unit 95, and the mixed air is The air passes through the ducts 72 and 73 and is blown out from the air outlet 50 in the living room 20 and the air outlet 52 in the guest room 22, respectively. A circulating air passage (not shown) on the first floor is formed in which the air-conditioned return air returns to the entrance hall 17 through return air ports 85 and 86. The supply air duct on the second floor and the return air duct on the second floor are connected, and on the second floor 5, conditioned air is produced by mixing the blown air blown from the air conditioner indoor unit 16 at the stair landing 18 with the air from the stair landing 18, etc. The supplied air is sucked in from the suction port 43, passes through the duct 76, the blower 356, and the duct 77, and flows into the branch pipe 361, and is mixed with the outdoor air heat-exchanged by the heat exchange unit 96, and the mixed air is The air passes through ducts 78 and 79 and is blown out from the air outlet 51 of the bedroom 21 and the air outlet 53 of the children's room 23, respectively. A second-floor circulation air path (not shown) is formed in which the air-conditioned return air passes through return air ports 87 and 88 and returns to the stair landing 18.

Note that in this embodiment, the ventilation exhaust ports 102 and 103 are provided in the toilets 100 and 101, but odors, moisture, harmful substances, etc. are generated and accumulated in places other than the toilets, such as washrooms, bathrooms, and kitchens. A ventilation outlet and a louver may be provided in the so-called dirty zone, which is a room or space where air pollution is likely to occur.In that case, the air can be directly exhausted outside without going through other rooms or spaces. However, if the heat exchange elements 110, 111 of the heat exchange units 95, 96 are not resistant to deterioration due to moisture in the bathroom, oil in the kitchen, etc., it is necessary to provide another ventilation fan.
Further, the ventilation exhaust ports 102 and 103 may be provided in a room downstream of the circulation path (return air path), such as the entrance hall 17 or the staircase landing 18. In that case, some of the indoor air in the room, etc. , the dust and moisture generated in the room, etc. during normal life are discharged outside, but to prevent moisture, etc. from the dirty zone from flowing into the room, etc., there is also a ventilation outlet in the dirty zone. It is necessary to install a separate ventilation fan.

In the above configuration, for the entrance hall 17, living room 20, and guest room 22 on the first floor 4, and for the stair landing 18, bedroom 21, and children's room 23 on the second floor 5, heating operation, cooling operation, air purification operation, and outside air intake are performed, respectively. When performing indoor air exhaust, etc., we will explain the operating status of each device and the way the wind flows, using the entrance hall 17 on the 1st floor 4 as a representative, but the same explanation will apply to the landing 18 of the stairs on the 2nd floor 5. .

FIG. 17 is a flow chart of the wind in the entrance hall 17 when priority is given to cooling other rooms.
In the summer, when the outside temperature is about 35 degrees Celsius, the entrance hall 17, living room 20, and guest room 22 are not being cooled, and the living room 20 and guest room 22 where the air conditioner indoor unit 15 is not installed are wanted to be cool, but the entrance hall 17 When there is no need to cool the air conditioner, this is called cooling other room priority operation, but the room temperature in the entrance hall 17 is high at about 30 degrees Celsius because it is not air-conditioned, and the air conditioner indoor unit 15 is operated by remote control (not shown). ), set the set temperature to a low 25°C, set the air volume to low, and start cooling operation. Then, the angle of the wind direction louver 145 is set, the angle of the blowing airflow 170 is adjusted to the "horizontal direction (0°)", and the blower 355 is operated at the maximum airflow rate of 500 m ³ /h.
The air at 30°C sucked in from the suction port 142 of the indoor air conditioner unit 15 is detected by a suction air temperature sensor (not shown), and the air temperature is 30°C, the remote controller set temperature is 25°C, and the set air volume is low. The inverter drive frequency of the compressor (not shown) is driven at a high frequency to control the electric expansion valve (not shown), outdoor blower (not shown), etc. (not shown) to increase the cooling capacity of the air conditioner on the first floor, and lower the temperature of the airflow 170 from the air conditioner indoor unit 15 to a lower temperature of 16°C. Adjust to

The temperature of the blowout airflow 170 is 16°C, and depending on the density of the air, it tends to become a downward airflow, but since the airflow volume in cooling operation is about 5m ³ /min (300m ³ /h), the airflow is at the center of the air conditioner indoor unit 15 in the horizontal direction. Above, at the position of the suction port 305 installed on the ceiling within about 1 m from the front of the air conditioner indoor unit 15, the blowing air flow 170 is decelerated to a wind speed of 1 m/s or less, and the air volume of the blower 355 at the same position is 500 m/s. Compared to the wind speed of 1.5 to 2 m/s of the suction airflow at the suction port 305 at ³ /h, the wind speed is slower and the wind pressure is smaller, so more than 70% of the outlet airflow 170 becomes the suction airflow 171 which is an upward airflow. and is sucked into the suction port 305.
The heat exchange unit 95 operates at a strong notch ventilation air volume of 150 m ³ /h, and the conditioned air and the outdoor air heat exchanged by the heat exchange unit 95 are mixed in the branch pipe 360, and the mixed air is supplied to the living room 20. The air is blown out from the outlet 50 and the air outlet 52 of the passenger compartment 22, respectively. The return air after air conditioning passes through the return air ports 85 and 86 and returns to the entrance hall 17 as a return air flow 378, so the air volume of the return air flow 378 is 500 m ³ /h of air flow + 150 m ^{3 /h} of ventilation air flow. At 650 m ³ /h, the entrance hall 17 becomes a positive pressure, and the wind pressure of the return air flow toward the suction port 305 increases. Furthermore, the return air flow is outdoor air after heat exchange with air after air conditioning, and since it is slightly higher than the room temperature of the entrance hall 17, it becomes an upward air flow and heads toward the suction port 305.

The suction airflow 171 is attracted by the above-mentioned return airflow 378, and together with the return airflow 378, more of the suction airflow is directly sucked into the suction port 305, and the temperature of the air sucked in at the suction port 305 is adjusted to the temperature of the entrance hall 17. The temperature is set to about 22°C, which is 8K lower than the room temperature of 30°C, and air is blown out from the air outlets 50 and 52 at a rate of 250 m ³ /h at about 23°C to cool the living room 20 and the guest room 22 whose room temperature is about 30°C. A part of the blowout airflow 170 that is not directly drawn in is also mixed with the return airflow 378 and the like in the mixing section 180, and most of it is sucked into the suction port 142 of the air conditioner indoor unit 15 as the suction airflow 181.
Regarding air purification, part of the air in the suction airflow 171 flows into the air purification suction air passage 160 of the suction port 305, and the air purified by the air purification unit 40 directly flows into the air purification bypass suction air passage 165. It merges with the incoming air, becomes clean supply air, replaces the air in the living room 20 and guest room 22, becomes slightly dirty return air, returns to the entrance hall 17, and repeats the air purification process. As a result, the air cleanliness of the entrance hall 17, living room 20, and guest room 22 is maintained at a high level.
By the operation of the heat exchange unit 95, the heat exchanged outdoor air is mixed with the conditioned air sent from the blower 355 and sucked in by the suction port 305 at the branch part 360, and is blown out into the room etc., supplying fresh outdoor air. Then, the return air containing CO ₂ and humidity increased by people in the room, etc., passes through the return air port 86 and returns to the entrance room 17, and a part of the air in the entrance room 17 is sent to the toilet. It passes through the louver 135 provided between the entrance hall 100 and the entrance hall 17 and is discharged as an exhaust airflow 186, so that the air quality in the entrance hall 17, the living room 20, and the guest room 22 is maintained even higher.

Also, if you want to cool the living room 20 and guest room 22 while the entrance hall 17 is being cooled, since the entrance hall 17 is being cooled and the room temperature is a little low at about 27 degrees Celsius, In order to strengthen the cooling of other rooms, the operation is basically the same as the cooling other room priority operation shown in FIG. However, the air volume is low and cooling operation continues. Then, the angle of the wind direction louver 145 is set, the angle of the blowing airflow 170 is adjusted to the "horizontal direction (0°)", and the blower 355 is operated at the maximum airflow rate of 500 m ³ /h.
The air at 27°C sucked in from the suction port 142 of the indoor air conditioner unit 15 is detected by a suction air temperature sensor (not shown), and the air temperature is 27°C, the remote control set temperature is 23°C, and the set air volume is low. The inverter drive frequency of the compressor (not shown) is driven at a high frequency to control the electric expansion valve (not shown), outdoor blower (not shown), etc. (not shown) to increase the cooling capacity of the air conditioner on the first floor, and lower the temperature of the airflow 170 from the air conditioner indoor unit 15 to a lower temperature of 14°C. Adjust to
The difference from the cooling operation when priority is given to other rooms is that because the set temperature is as low as 23°C, the blowout temperature is as low as 14°C, and part of the blowout airflow 170 becomes a downward airflow to cool the entrance hall 17 and More than 50% of the airflow 170 becomes the suction airflow 171, which is an upward airflow, and is sucked into the suction port 305, and the temperature is about 20°C, which is 7K lower than the room temperature of the entrance hall 17, which is 27°C, and from the airflow ports 50 and 52, The air is blown out at 250 m ³ /h at about 21°C, respectively, to cool the living room 20 and guest room 22 whose room temperature is about 30°C.

FIG. 18 is a flow chart of the wind in the entrance hall 17 when priority is given to cooling one's own room. If the cooling operation of the entrance hall 17 is stable and the living room 20 and the guest room 22 are doing just fine, this is called a cooling private room priority operation, but since the entrance hall 17 is under stable cooling operation, the room temperature is as low as about 25 degrees Celsius. In order to reduce the cooling of other rooms while suppressing the cooling of the user's own room, the air conditioner indoor unit 15 is set to a low temperature of 23° C. using a remote control (not shown), the air volume is set to medium, and the cooling operation is continued. Then, the angle of the wind direction louver 145 is set, the angle of the blowing airflow 170 is adjusted from "45 degrees diagonally forward to 60 degrees", and the air blowing amount of the blower 355 is operated at the medium flow rate of 200 m ³ /h.
The air at 25°C sucked in from the suction port 142 of the indoor air conditioner unit 15 is detected by a suction air temperature sensor (not shown), the temperature of the air at 25°C, the remote control set temperature of 23°C, and the set air volume. The inverter drive frequency of the compressor (not shown) is driven at a low frequency to control the electric expansion valve (not shown), the outdoor blower (not shown), etc., and the heat exchanger of the air conditioner indoor unit 15 is controlled. The enthalpy and circulation amount of the refrigerant flowing into the air conditioner (not shown) are controlled to reduce the cooling capacity exerted by the air conditioner on the first floor, and the temperature of the airflow 170 from the air conditioner indoor unit 15 is raised to 24°C. Adjust to

The blowout airflow 170 has a flow rate of about 7 m ³ /min (420 m ³ /h) during cooling operation, and a wind speed of about 1.5 m/s 1 m forward from the air outlet 140 of the air conditioner indoor unit 15, and the air flow 170 is about 1.5 m/s diagonally forward. In order to blow out air at an angle of 1.5° to 60°, the airflow 170 is blown out from the position of the suction port 305 installed on the ceiling within about 1 m from the front of the air conditioner indoor unit 15 on the center of the air conditioner indoor unit 15 in the left-right direction. Since it passes below at a distance of 5 m or more, and the air volume of the blower 355 is as low as 200 m ³ /h, the wind speed of the suction airflow at the suction port 305 is low at 1 m/s or less, and the blowing air flow 170 is directly sucked into the suction port 305. Never.
In addition, the heat exchange unit 95 operates at a ventilation air volume of 100 m ³ /h for 24 hours, and the conditioned air and the outdoor air heat exchanged by the heat exchange unit 95 are mixed in the branch pipe 360, and the mixed air is supplied to the living room 20. The air is blown out from the air outlet 50 and the air outlet 52 of the passenger compartment 22, respectively. The return air after air conditioning passes through the return air ports 85 and 86 and returns to the entrance hall 17 as a return air flow 378, so the air volume of the return air flow 378 is 200 m ³ /h of air flow + 100 m ³ /h of ventilation air flow. 300m ³ /h. The return air flow is outdoor air after heat exchange with the air after air conditioning, and since it is slightly higher than the room temperature of the entrance hall 17, it becomes an upward air flow and heads toward the suction port 305, but the air volume of the return air flow 378 is The outlet airflow 170 is not attracted to the inlet 305 because the location where it joins the outlet airflow 170 is far away from the inlet 305 .

Mixing is promoted by the convergence of the blowout airflow 170 and the return airflow 378, and a mixing area 180 with uniform temperature and air quality is generated in the entrance hall, and a comfortable environment in the entrance hall 17 is maintained.
Then, a suction airflow 185 is drawn from the mixing part 180 to the suction port 305, and the temperature of the air sucked at the suction port 305 is set to about 25° C., which is zero K, with respect to the room temperature of 25° C. in the entrance hall 17. 52, each blows out 100 m ³ /h of supply air at about 26°C to cool the living room 20 and guest room 22, which have a room temperature of about 30°C. At the same time, the air is purified and outside air is introduced, so the room temperature hardly changes and the air Quality will improve. Since the power consumption of air conditioners and blowers can be kept low, energy-saving cooling operation can be achieved.
Note that when only the entrance hall 17 is being cooled and the living room 20 and guest room 22 are not being cooled, the blower 355 can be stopped to further reduce power consumption. Since outside air cannot be introduced, it is more desirable to operate the blower 355 intermittently, for example every hour. In that case, the air from the heat exchange unit 95 may flow back toward the blower 355 at the branch portion 360, so care must be taken.

FIG. 19 is a flow chart of the wind in the entrance hall 17 when priority is given to heating other rooms.
In winter, when the outside temperature is about 7 degrees Celsius, the entrance hall 17, living room 20, and guest room 22 are not being heated, and I want to warm the living room 20 and guest room 22 where the air conditioner indoor unit 15 is not installed, but the entrance hall 17 When there is no need to heat the air conditioner, this is called heating other room priority operation, but the room temperature in the entrance hall 17 is low at about 15 degrees Celsius because it is not heated, and the air conditioner indoor unit 15 is operated by remote control (not shown). So, I set the temperature to a high 22 degrees Celsius, set the air volume to medium, and started heating operation. Then, the angle of the wind direction louver 145 is set, the angle of the blowing airflow 170 is adjusted to the "horizontal direction (0°)", and the blowing volume of the blower 355 is operated at 350 m ³ /h.
The 15°C air sucked in from the suction port 142 of the indoor air conditioner unit 15 is detected by a suction air temperature sensor (not shown), and the temperature of the remote controller is 22°C. The inverter drive frequency of the compressor (not shown) is driven at a high frequency to control the electric expansion valve (not shown), outdoor blower (not shown), etc. (not shown) to increase the heating capacity of the air conditioner on the first floor, and raise the temperature of the airflow 170 from the air conditioner indoor unit 15 to 37°C. Adjust to

The airflow 170 blows out horizontally from the air outlet 140 of the air conditioner indoor unit 15 at a flow rate of about 7 m ³ /min (420 m ³ /h), which is the same as the air flow rate during heating operation, and at a temperature of 37°C, but increases due to the density of the air. , toward the installed suction port 305. At the position of the suction port 305, the blowout airflow 170 is decelerated to a wind speed of 1 to 1.5 m/s, and more than 70% of the blowout airflow 170 is , and the temperature of the air sucked in at the suction port 200 is set to approximately 36°C, which is 21K higher than the room temperature of the entrance hall 17, which is 15°C, and the duct 70, blower 355, duct 71, branch pipe 360, duct 72, 73 and is blown out from the air outlets 50 and 52 as 175 m ³ /h of supply air at about 35° C., strongly heating the living room 20 and guest room 22 whose room temperature is about 15° C.
In addition, the heat exchange unit 95 operates at a ventilation air volume of 100 m ³ /h for 24 hours, and the conditioned air and the outdoor air heat exchanged by the heat exchange unit 95 are mixed in the branch pipe 360, and the mixed air is supplied to the living room 20. The air is blown out from the air outlet 50 and the air outlet 52 of the passenger compartment 22, respectively. The return air after air conditioning passes through the return air ports 85 and 86 and returns to the entrance hall 17 as a return air flow 378, so the air volume of the return air flow 378 is 350 m ³ /h of air flow + 100 m ³ /h of ventilation air flow. ^However , the return air flow 378 is outdoor air after heat exchange with the air after air conditioning, and is slightly lower than the room temperature in the entrance hall 17, so it will rise due to the density of the air. Before it joins the outlet airflow 170, a part of the outlet airflow 170 is mixed with the air in the entrance hall 17 in the mixing section 180, and the temperature and air quality become uniform, so that the temperature in the entrance hall 17 does not rise relatively. Therefore, the situation before driving is easily maintained.

FIG. 20 is a flow chart of the wind in the entrance hall 17 when heating both rooms is in operation.
If you want to heat the living room 20 and guest room 22 while heating the entrance hall 17, the room temperature is a little high at about 20 degrees Celsius because the entrance hall 17 is being heated, so while heating the entrance hall 17 is being heated, the room temperature is a little high at about 20 degrees Celsius. In order to strengthen the heating, the air conditioner indoor unit 15 is set to a relatively high set temperature of 24° C. using a remote control (not shown), the air volume is set to high, and the heating operation is continued. Then, the angle of the wind direction louver 145 is set, the angle of the blowing airflow 170 is adjusted from 45° diagonally forward to 60°, and the air blowing amount of the blower 355 is operated at 350 m ³ /h.
The air at 20°C sucked in from the suction port 142 of the indoor air conditioner unit 15 is detected by a suction air temperature sensor (not shown), the temperature is 20°C, the remote control setting temperature is 24°C, and the air volume is set to high. The inverter drive frequency of the compressor (not shown) is driven at a high frequency to control the electric expansion valve (not shown), outdoor blower (not shown), etc. (not shown) to increase the heating capacity of the air conditioner on the first floor, and raise the temperature of the airflow 170 from the air conditioner indoor unit 15 to 38°C. Adjust to

The blowout airflow 170 is a blowout airflow 170 that blows diagonally forward from 45° C. to 60° C. from the air outlet 140 of the air conditioner indoor unit 15 at a strong air volume of about 10 m ³ /min (600 m ³ /h) during heating operation. Since the temperature is 38°C, which is considerably higher than the room temperature of the entrance hall 17, the density of the air increases rapidly, and more than 70% of the blowing airflow 170 becomes the suction airflow 185. The temperature is about 36°C, which is 16K higher than the room temperature of 20°C, and 175 m ³ /h of air at about 35°C is blown out from the air outlets 50 and 52, respectively, to heat the living room 20 and guest room 22, which have a room temperature of about 15°C, and other rooms. Heats more strongly than during priority operation.
In addition, the heat exchange unit 95 operates at a ventilation air volume of 100 m ³ /h for 24 hours, and the conditioned air and the outdoor air heat exchanged by the heat exchange unit 95 are mixed in the branch pipe 360, and the mixed air is supplied to the living room 20. The air is blown out from the air outlet 50 and the air outlet 52 of the passenger compartment 22, respectively. The return air after air conditioning passes through the return air ports 85 and 86 and returns to the entrance hall 17 as a return air flow 378, so the air volume of the return air flow 378 is 350 m ³ /h of air flow + 100 m ³ /h of ventilation air flow. ^However , the return air flow 378 is outdoor air after heat exchange with the air after air conditioning, and is lower than the room temperature in the entrance hall 17, so it will not rise due to the density of the air. do not have. However, since the airflow direction of the blowout airflow 170 is diagonally forward from 45°C to 60°C, a part of the blowout airflow 170 is mixed with the air in the entrance hall 17 near the center of the entrance hall 17 as a mixing part 180, and the temperature and The air quality becomes uniform, and the entrance hall 17 is heated to approach the set temperature of 24°C.

In addition, if the heating operation of the entrance hall 17 is stable and the living room 20 and guest room 22 are fine, this is called heating priority operation, but since the heating operation of the entrance hall 17 is stable, the room temperature is about 22 degrees Celsius. Since it is expensive, in order to suppress the heating in the own room while weakening the heating in other rooms, basically, the operation is performed with the same settings as in the above-mentioned heating operation for both rooms, and the air conditioner indoor unit 15 is controlled by a remote control (not shown). The set temperature is set high at 24° C., and the blower 355 is operated at a flow rate of 200 m ³ /h.
The air at 22°C sucked in from the suction port 142 of the indoor air conditioner unit 15 is detected by a suction air temperature sensor (not shown). The inverter drive frequency of the compressor (not shown) is driven at a low frequency to control the electric expansion valve (not shown), the outdoor blower (not shown), etc., and the heat exchanger of the air conditioner indoor unit 15 is controlled. The enthalpy and circulation amount of the refrigerant flowing into the air conditioner (not shown) are controlled to reduce the heating capacity exerted by the air conditioner on the first floor, and the temperature of the airflow 170 discharged from the air conditioner indoor unit 15 is lowered to 25°C. Adjust to

The blowing airflow 170 has a strong air volume of about 10 m ³ /min (600 m ³ /h) during heating operation, and a wind speed of about 2 m/s 1 m ahead of the air outlet 140 of the air conditioner indoor unit 15, and from 45 degrees diagonally forward. In order to blow air at an angle of 60 degrees, the airflow 170 is 1.5 m or more from the position of the suction port 305 installed on the ceiling within about 1 m from the front of the air conditioner indoor unit 15 on the center of the air conditioner indoor unit 15 in the left and right direction. The temperature of the blowing airflow 170 is 25°C, which is only slightly higher than the room temperature of the entrance hall 17, which is 22°C, and the air volume of the blower 355 is small at 200m ³ /h. The wind speed of the airflow is as low as 1 m/s or less, and the blown airflow 170 is not directly sucked into the suction port 305.
In addition, the heat exchange unit 95 operates at a ventilation air volume of 100 m ³ /h for 24 hours, and the conditioned air and the outdoor air heat exchanged by the heat exchange unit 95 are mixed in the branch pipe 360, and the mixed air is supplied to the living room 20. The air is blown out from the air outlet 50 and the air outlet 52 of the passenger compartment 22, respectively. The return air after air conditioning passes through the return air ports 85 and 86 and returns to the entrance hall 17 as a return air flow 378, so the air volume of the return air flow 378 is 200 m ³ /h of air flow + 100 m ³ /h of ventilation air flow. ^However , the return air flow 378 is outdoor air after heat exchange with the air after air conditioning, and is lower than the room temperature in the entrance hall 17, so it will not rise due to the density of the air. do not have.

However, since the airflow direction of the blowout airflow 170 is diagonally forward from 45°C to 60°C, a part of the blowout airflow 170 is mixed with the air in the entrance hall 17 near the center of the entrance hall 17 as a mixing part 180, and the temperature and The air quality becomes uniform, and the entrance hall 17 is heated to approach the set temperature of 24°C.
Then, a suction airflow 185 is drawn from the mixing part 180 to the suction port 305, and the temperature of the air sucked in by the suction port 305 is set to about 23°C, which is 1K higher than the room temperature of the entrance hall 17, which is 22°C. The air is blown out as 100 m ³ /h of supply air at approximately 22°C each, heating the living room 20 and guest room 22 whose room temperature is approximately 15°C, and also purifying the air and bringing in outside air, so the room temperature remains almost unchanged and the air quality remains the same. will improve. Since the power consumption of air conditioners and blowers can be kept low, energy-saving heating operation can be achieved.
Note that when only the entrance hall 17 is heated and the living room 20 and guest room 22 are not heated, the blower 355 can be stopped to further reduce power consumption. Since outside air cannot be introduced, it is more desirable to operate the blower 355 intermittently, for example every hour. In that case, the air from the heat exchange unit 95 may flow back toward the blower 355 at the branch portion 360, so care must be taken.

FIG. 21 is an external view of branch portions 360 and 361 according to the third embodiment.
The branch parts 360 and 361 are for merging the air from the two ducts, mixing them, and evenly branching them into a maximum of four ducts.The branch parts 360 and 361 are made of an airtight metal casing with a heat insulating material pasted inside. This is what I added.
The ducts 71, 77 from the blowers 355, 356 connect to the blower adapters 310, 320, the air supply ducts B330, 331 from the heat exchange units 95, 96 connect to the heat exchange unit adapters 311, 321, the air outlets 50, 51, 52, Ducts 72, 73, 78, and 79 connected to 53 are airtightly connected to blowout adapters 316, 318, 326, and 328, respectively. Note that the blow-off adapters 315, 325, 317, and 327 to which no ducts are connected are covered with heat-insulating lids to maintain airtightness.
The blown air from the blowers 355, 356 and the outside air after heat exchange from the heat exchange units 95, 96 are the spaces inside the branch parts 360, 361, and the blower adapters 310, 320 and the heat exchange unit adapters 311, 321 In the mixing parts 340 and 341, which are the spaces immediately after the air flows into the branch parts 360 and 361, the conditioned air and fresh outside air in the entrance hall 17 and the stair landing 18 where the air conditioners 15 and 16 are installed are uniform in air quality. Mix until it becomes.
Examples of this method include, for example, increasing the volume and cross-sectional area of the mixing sections 340 and 341 so that the wind speed of the inflowing air is as slow as 0.5 m/s or less, or installing a wall or other resistance downstream of the mixing sections 340 and 341. Although methods such as installing a body to cause the two airflows to collide are considered, methods such as making the external dimensions too large and making construction difficult, raising the price, and creating too much resistance and reducing the overall air volume are considered. Issues may arise, so in any case, it is necessary to decide on specifications with a balance between objectives, effects, and issues.

The mixed air of conditioned air and outside air that has become uniform in the mixing parts 340 and 341 is downstream of the mixing parts 340 and 341 and upstream of the blowout adapters 315, 316, 317, 318, 325, 326, 327, and 328. The air flows into the branch parts 342 and 343, and is equally branched to the blowout adapters 316 and 318 to which the ducts are connected in terms of air volume, and is equally branched to the blowout adapters 326 and 328 to which the ducts are connected in terms of air volume. Ru.
Examples of this method include, for example, increasing the volume and cross-sectional area of the branch parts 342 and 343 so that the wind speed of the air flowing through them is as slow as 0.3 m/s or less, or using the blow-off adapters 315, 316, 317, 318, 325, A possible method is to install a resistor such as a wall at the entrances of 326, 327, and 328 to equalize the ventilation resistance due to the shape, etc., but the external dimensions will be too large, making it difficult to construct, increasing the price, and reducing the resistance. If it is too large, problems such as a decrease in the overall air volume will occur, so in any case, specifications must be determined by balancing the purpose, effects, and problems.
The number and diameter of ducts to be merged and the number and diameter of ducts to be branched may be changed depending on the configuration and specifications of the air conditioning systems 301 and 302. The structure, external shape, specifications, etc. of the branching parts 360 and 361 may be determined so that other air quality and air volume can be branched equally without changing as much as possible.

There is no problem if the blowers 355, 356 and heat exchange units 95, 96 operate continuously for 24 hours, but if any of them is temporarily stopped, the duct connected to the stopped product should be connected to the product that is in operation. Since there is a possibility that air may flow back from the ducts of It is necessary to install a resistor such as a wall between the blower adapters 310, 320 and the heat exchange unit adapters 311, 321 in the parts 340, 341, but this may cause unstable shutter operation, leakage, or abnormal noise. Care must be taken because ventilation resistance may increase due to windshields, shutters, walls, etc., and the overall air volume may decrease.

In this way, in this embodiment, the air inlet is installed on the ceiling of the room where the air conditioner is installed, so the inlet is not noticeable and neat, and the air inlet and duct are placed on the wall. In many cases, the installation depth is small, but the ceiling has sufficient depth as a space behind the ceiling, and there is a wide space for installing suction ports, ducts, etc., making it easy to install.
Normally, during cooling, the airflow from the air conditioner tends to become a downward airflow depending on the density of the air, and if the suction port is located on the ceiling, it is difficult to suck in a large amount of the airflow from the air conditioner. Install a suction port close to the front, make the blowing airflow direction horizontal, lower the wind speed, increase the air speed of the blower, increase the amount of heat-exchanged outside air introduced, and supply the heat-exchanged outside air to each room. In this way, the air volume of the return air flow to the room where the air conditioner is installed is set to the blowing air volume plus the ventilation air volume, the speed of the return air flow to the suction port is increased, and the temperature of the return air air flow is raised to slightly higher than room temperature. Since the airflow can be drawn to the suction port by the return airflow, a large amount of the discharged airflow can be sucked in at the suction port even during cooling.

Furthermore, since the air volume of the blower and heat exchange unit is increased compared to Embodiment 1, the power consumption of these units increases slightly, but the power consumption is lower than that of an air conditioner, and the room where the air conditioner is installed is used more than necessary. This provides an air conditioning system that can adjust the temperature of a room without heating or cooling it and make it more comfortable.
In addition to the above-mentioned temperature adjustment, in terms of air purification, the building as a whole has the same functions and effects as in Embodiment 1, and in addition, fresh outside air after heat exchange is mixed with conditioned air, Since air is supplied directly to each room, it is possible to quickly improve air quality by reducing CO ₂ and odors in each room.

(Embodiment 4)
FIG. 22 is a sectional view showing the configuration of a heat exchange unit in Embodiment 4 of the present invention.
The fourth embodiment differs from the third embodiment in the configuration of the heat exchange unit, and only the different parts will be explained below, and the parts not explained are basically the same as the third embodiment.

A ventilation outlet 102 such as an exhaust louver is provided on the ceiling of the toilet 100 in the building 3 to exhaust the air inside the toilet 100, and is connected to a heat exchange unit 495.
An outdoor exhaust hood 105 is provided in a through hole in the outer wall of the building 3, and is connected to a heat exchange unit 495 through an exhaust duct 107.
The heat exchange unit 495 includes an introduction fan (not shown) that introduces outdoor air, an exhaust fan (not shown) that exhausts indoor air, a motor (not shown), and recovers all the heat from indoor air to outdoor air. It has a heat exchange element 110, a heat exchanger 450 that heats and cools the outdoor air that has passed through the heat exchange element, and a heat exchange fan (not shown).
The heat exchanger 450 allows heat of the refrigerant or liquid to pass through the aluminum fins by closely fitting a plurality of aluminum fins around a copper tube or aluminum tube and passing the refrigerant or liquid inside the copper tube or aluminum tube. Transfer heat to the air.
The heat exchange unit 495 and the outdoor unit 430 are connected by refrigerant piping and electrical wiring 432, and the control device (not shown) for the outdoor unit 430 controls the compressor (not shown) depending on the operating mode, outdoor temperature, etc. ), an outdoor fan (not shown), and an expansion valve (not shown) to flow the refrigerant into the heat exchanger 450.

The outdoor air that has passed through the heat exchange element and the heat exchanger flows into the branch portion 342 through the air supply duct B330.
As a result, all the heat of the indoor air is recovered from the ventilation exhaust port 102 by the heat exchange element 110 of the heat exchange unit 495, and the indoor air is exhausted to the outside from the outdoor exhaust hood 105 through the exhaust duct 107.
In addition, outdoor air is introduced from the outdoor air supply hood 115, passes through the air supply duct A117, is purified by the filter box 120, and recovers all heat by the heat exchange element 110 of the heat exchange unit 495. The air is heated, cooled, and dehumidified by the heat exchanger 450, passes through the air supply duct B330, and is mixed with the conditioned air from the blower 355 at the branch section 342 to become mixed conditioned air, which is then sent to the air outlets 50, 52. Air is blown out into the living room 20 and guest room 22.

In the summer, when the outdoor temperature is high, the total heat exchange rate of the heat exchange element is about 70%, so even if total heat is exchanged with the indoor air, it will be higher than the room temperature, and the solar radiation load is large, so the air conditioning of the air conditioner 15 If the room temperature becomes stable higher than the set temperature due to lack of capacity, etc., the heat exchanger 450 is used as an evaporator, and the outdoor air after heat exchange is further cooled by the two-phase low-pressure refrigerant from the outdoor unit 430, and the room temperature is You can lower it further to compensate for the lack of ability and make it more comfortable.
In winter, when the outdoor temperature is low, the total heat exchange rate of the heat exchange element is about 70%, so even if total heat is exchanged with the indoor air, the temperature will be lower than the room temperature. Also, due to snowfall, etc., the air conditioning capacity of the air conditioner 15 If the room temperature becomes stable below the set temperature due to a lack of water, etc., the heat exchanger 450 is used as a condenser, and the outdoor air after heat exchange is further heated by the high-pressure refrigerant from the outdoor unit 430 to raise it above the room temperature. , can compensate for the lack of ability and make it more comfortable.
During the rainy season, when the outdoor humidity and indoor humidity are high and the humidity remains high even after total heat exchange with the indoor air, or when there is a lot of moisture inside the building due to many people staying in the room or bathing, etc. The heat exchanger 450 is used as an evaporator and a condenser, and the outdoor air after heat exchange is dehumidified by cooling with the high-pressure refrigerant from the outdoor unit 430, and then reheated by heating to produce outdoor air with lowered absolute humidity. By introducing it inside a building, you can get more refreshing comfort.
When the outdoor temperature and humidity are appropriate, such as during the middle of the year, or when the air conditioning capacity of the air conditioner 15 is sufficient and the room temperature and indoor humidity are comfortable, the heat exchange element 110 is installed inside the building without flowing refrigerant to the heat exchanger 450. Since sufficient comfortable outdoor air can be supplied just by exchanging total heat, it is possible to save energy and improve air quality, maintain appropriate room temperature, indoor humidity, etc., and maintain comfort.

In this embodiment, the heat exchange unit 495 has a 24-hour ventilation air volume of 100 m ³ /h, a strong notch ventilation air volume of 150 m ³ /h, and a total heat exchange rate of about 70%. Since the specifications are suitable for one floor of the building 3, providing heat exchange units 495 on the first floor 4 and second floor 5 improves the comfort of the entire building 3.
In this embodiment, so-called heat pump heating and cooling is performed by flowing refrigerant through the heat exchanger 450 in order to save energy. Heating and cooling may be performed by running hot water from a low-cost water heater or hot water panel, or cold water from underground cooling or a chiller.
In this way, in this embodiment, by changing the state of the refrigerant flowing through the heat exchanger with the heat pump depending on the season, it is possible to save energy and reduce the temperature and humidity in the building without installing additional air conditioners or dehumidifiers. can be maintained more comfortably.

(Embodiment 5)
FIG. 23 is a flow diagram of the air flow when priority is given to cooling other rooms in the entrance hall 17, etc., showing the configuration of the air conditioning system in Embodiment 5 of the present invention.
Embodiment 5 is different from Embodiment 3 in the relative positional relationship between the suction port and the air conditioner, etc., and as a result, the operation and effect are different.Hereinafter, only the different parts will be explained and will not be explained. The parts are basically the same as in the third embodiment.

The air conditioning system 401 is installed on the first floor 4 and the second floor 5 of a two-story building 3, which is a highly airtight and highly insulated house, and provides air conditioning and ventilation to the rooms in the building 3. 4 will be described in detail as an embodiment.
As a configuration of this air conditioning system 401, in the entrance hall 17, a ceiling chamber 404 is provided on the wall 33 side of the ceiling 403 and extends to the attic space 62 side, and the air conditioner indoor unit 15 is installed on the wall 33 in the ceiling chamber 404. Install with some parts included. An air inlet 405 ( A suction port G) is installed.
The ceiling chamber 404 is a part of the entrance hall 17, is a rectangular parallelepiped with an open surface on the ceiling 403 side, is made of the same material as the ceiling 403, and is surrounded by an attic space 62 that is a heat-insulating space, and is a rectangular parallelepiped with an open surface on the ceiling 403 side. By providing a space of at least 250 mm above the suction port 142 of the air conditioner 15, at least 500 mm from the front of the air conditioner indoor unit 15, and at least 300 mm from the left and right sides of the air conditioner indoor unit 15, air can flow smoothly into the suction port 142, making maintenance easier. is of a size that is possible.

In the above configuration, when the outside temperature is about 35 degrees Celsius in summer, the entrance hall 17, living room 20, and guest room 22 are not being cooled, and it is desired to cool the living room 20 and guest room 22 where the air conditioner indoor unit 15 is not installed. , when the entrance hall 17 does not need to be cooled, this is called cooling other room priority operation, but the room temperature in the entrance hall 17 is high at about 30 degrees Celsius because it is not air-conditioned, and the air conditioner indoor unit 15 is operated by remote control. (not shown), the set temperature is set to a low value of 25° C., the air volume is set to low, and cooling operation is started. Then, the angle of the wind direction louver 145 is set, the angle of the blowing airflow 170 is adjusted to the "horizontal direction (0°)", and the blower 355 is operated at the maximum airflow rate of 500 m ³ /h.
The air at 30°C sucked in from the suction port 142 of the indoor air conditioner unit 15 is detected by a suction air temperature sensor (not shown), and the air temperature is 30°C, the remote controller set temperature is 25°C, and the set air volume is low. The inverter drive frequency of the compressor (not shown) is driven at a high frequency to control the electric expansion valve (not shown), outdoor blower (not shown), etc. (not shown) to increase the cooling capacity of the air conditioner on the first floor, and lower the temperature of the airflow 170 from the air conditioner indoor unit 15 to a lower temperature of 16°C. Adjust to

The temperature of the blowout airflow 170 is 16°C, and depending on the density of the air, it tends to become a downward airflow. Since the suction port 405 is installed at a height equal to or lower than the height of the air outlet 140 of the indoor unit 15, even if it is a descending airflow, the blowing airflow 170 is easily sucked into the suction port 405 as the suction airflow 171. .
In addition, since the air volume during cooling operation is approximately 5 m ³ /min (300 m ³ /h), the blowout airflow 170 is decelerated to a wind speed of 1 m/s or less at the position of the suction port 405, and the blower 355 at the same position Compared to the 1.5 to 2 m/s of the suction airflow at the suction port 405 due to the air volume of 500 m ³ /h, the wind speed is slower and the wind pressure is smaller, so more than 70% of the outlet airflow 170 is the suction airflow, which is an upward airflow. 171 and is sucked into the suction port 405.
The heat exchange unit 95 is operated at a strong notch ventilation air volume of 150 m ³ /h, and the conditioned air and the outdoor air heat exchanged by the heat exchange unit 95 are mixed in the branch pipe 360, and the mixed air is supplied to the living room 20. The air is blown out from the outlet 50 and the air outlet 52 of the passenger compartment 22, respectively. The return air after air conditioning passes through the return air ports 85 and 86 and returns to the entrance hall 17 as a return air flow 378, so the air volume of the return air flow 378 is 500 m ³ /h of air flow + 150 m ^{3 /h} of ventilation air flow. At 650 m ³ /h, the entrance hall 17 becomes a positive pressure, and the wind pressure of the return air flow toward the suction port 305 increases. Furthermore, the return air flow is outdoor air after heat exchange with air after air conditioning, and since it is slightly higher than the room temperature of the entrance hall 17, it becomes an upward air flow and heads toward the suction port 305.

The suction airflow 171 is attracted by the return airflow 378 mentioned above, and together with the return airflow 378, more of the suction airflow is directly sucked into the suction port 405, and the temperature of the air sucked in at the suction port 405 is adjusted to the temperature of the entrance hall 17. The temperature is set to about 22°C, which is 8K lower than the room temperature of 30°C, and air is blown out from the air outlets 50 and 52 at a rate of 250 m ³ /h at about 23°C to cool the living room 20 and guest room 22 whose room temperature is about 30°C. A part of the blowout airflow 170 that is not directly sucked in is also mixed with the return airflow 378 and the like in the mixing section 180, and most of it passes through the space between the air conditioner indoor unit 15 and the ceiling chamber 404 as the suction airflow 181. It is sucked into the suction port 142 of the air conditioner indoor unit 15.
In addition, when the air volume of the heat exchange unit 95 is reduced or stopped, or when the outdoor air heat exchanged by the heat exchange unit 95 is not blown out from the air outlet 50 of the living room 20 and the air outlet 52 of the guest room 22, the ventilation air volume may be reduced. Even if the air flow rate of 150 m ³ /h is not added to the return air flow 378, due to the relative positional relationship between the air outlet 140 and the inlet 405 of the air conditioner indoor unit 15, the outlet air flow 170 flows into the inlet 405 as the intake air flow 171. The effect of being easily absorbed remains the same.

In addition, the set temperature, air volume, and wind direction louver 145 in Embodiment 3 also apply to the operation during cooling both rooms operation, cooling own room priority, heating other room priority, heating both rooms operation, and heating own room priority operation in Embodiment 3. By setting the angle, air flow rate, etc., it is possible to create an environment that suits the purpose of each operation.
Note that the relative positional relationship between the air outlet 140 and the suction port 405 of the air conditioner indoor unit 15 is the shape of the ceiling chamber 404, the positional relationship between the ceiling chamber 404 and the air conditioner indoor unit 15, and the ceiling chamber 404 and the suction port. Depending on the positional relationship with the air conditioner indoor unit 15, the intake air flows smoothly into the suction port 142 of the air conditioner indoor unit 15, and depending on the angle setting of the wind direction louver 145 of the air conditioner indoor unit 15, the air volume setting, etc., the blowing air flow 170 flows smoothly into the suction port 405 If it is possible to achieve this, the effects and effects of this embodiment can be obtained, and the purpose can be achieved. For example, if the air inlet 405 is considerably lower than the air outlet 140 of the air conditioner indoor unit 15, in an operation when priority is given to heating other rooms, the situation is disadvantageous compared to raising only the temperature of the other room. However, as long as the intake air flows smoothly into the suction port 142 of the air conditioner indoor unit 15 and the blown airflow 170 reaches the suction port 405, it does not matter.

FIG. 24 is a flowchart of air flow when priority is given to cooling other rooms in the entrance hall 17, etc., showing another configuration of the air conditioning system according to Embodiment 5 of the present invention.
The air conditioning system 411 is installed on the first floor 4 and second floor 5 of the two-story building 3, which is a highly airtight and highly insulated house, and provides air conditioning and ventilation to the rooms in the building 3. 4 will be described in detail as an embodiment.

As a configuration of this air conditioning system 411, in the entrance hall 17, a ceiling chamber 414 is provided on the wall 33 side of the ceiling 403 and extends to the attic space 62 side, and the air conditioner indoor unit 15 is installed on the wall 33 within the ceiling chamber 404. Install it completely. The height of the air outlet 140 of the air conditioner indoor unit 15 and the height of the air outlet 140 of the air conditioner indoor unit 15 are placed on the side wall 412 of the ceiling chamber 414 located 2 m in front of the air conditioner indoor unit 15, facing the air conditioner indoor unit 15, and on the center of the air conditioner indoor unit 15 in the horizontal direction. The suction port 415 (suction port G) of the blower 455 is installed at the same height or lower.
Inside the blower 455, a DC motor (brushless DC motor) (not shown), which is more energy efficient than an AC motor and can control the rotation speed over a wider range in a stepless manner, and a sirocco fan (not shown) are installed. There is. When the air volume is set using a switch (not shown), air is sucked in from the suction port 415 by the rotation of the sirocco fan, and the sucked air flows through the duct 71 and the like, and is sent to the air outlet 50 in the living room 20 and the guest room 22. Air is blown out from the air outlet 52.
The ceiling chamber 414 is a part of the entrance hall 17, is a rectangular parallelepiped with an open surface on the ceiling 403 side, is made of the same material as the ceiling 403, and is surrounded by an attic space 62 that is a heat-insulating space. By providing a space of at least 250 mm above the suction port 142 of the air conditioner 15, at least 1000 mm from the front of the air conditioner indoor unit 15, and at least 300 mm from the left and right sides of the air conditioner indoor unit 15, the air sucked into the suction port 142 can smoothly flow and blow. A downward blowing airflow 470 flows smoothly from the outlet 140, and the size is such that maintenance is possible.

On the lower surface of the ceiling chamber 414, on the same plane as the ceiling 403, there is provided a louver 416 with low pressure loss when the outlet airflow 470 and the intake airflow 417 pass through. (not shown), and an air cleaning unit 540 is provided directly above the right half of the pre-filter (not shown).
Maintenance such as cleaning of the pre-filter, air purifying unit 540, and blower 455 can be performed by removing the louver 416 from the entrance hall 17 side.
In this embodiment, the air purifying unit 540 is provided above the louver 416, but it may also be provided inside the blower 455 and upstream of the sirocco fan, but this will increase the size of the blower 455 and increase the suction resistance. there is a possibility. Moreover, in that case, the suction port 415 will be removed and maintenance such as cleaning of the air purifying unit 540 will be performed.

In the above configuration, when the outside temperature is about 35 degrees Celsius in summer, the entrance hall 17, living room 20, and guest room 22 are not being cooled, and it is desired to cool the living room 20 and guest room 22 where the air conditioner indoor unit 15 is not installed. , when the entrance hall 17 does not need to be cooled, this is called cooling other room priority operation, but the room temperature in the entrance hall 17 is high at about 30 degrees Celsius because it is not air-conditioned, and the air conditioner indoor unit 15 is operated by remote control. (not shown), the set temperature is set to a low value of 25° C., the air volume is set to low, and cooling operation is started. Then, the angle of the wind direction louver 145 is set, the angle of the blowing airflow 170 is adjusted to the "horizontal direction (0°)", and the blower 455 is operated at the maximum airflow rate of 500 m ³ /h.
The air at 30°C sucked in from the suction port 142 of the indoor air conditioner unit 15 is detected by a suction air temperature sensor (not shown), and the air temperature is 30°C, the remote controller set temperature is 25°C, and the set air volume is low. The inverter drive frequency of the compressor (not shown) is driven at a high frequency to control the electric expansion valve (not shown), outdoor blower (not shown), etc. (not shown) to increase the cooling capacity of the air conditioner on the first floor, and lower the temperature of the airflow 170 from the air conditioner indoor unit 15 to a lower temperature of 16°C. Adjust to

The temperature of the blowout airflow 170 is 16°C, and depending on the density of the air, it tends to become a downward airflow. Since the suction port 415 (suction port G) of the blower 455 is installed at a height equal to or lower than the height of the air outlet 140 of the air conditioner indoor unit 15 above the center of the air conditioner 15 in the left-right direction, there is no downward airflow. Even if the airflow 170 is in the air, the blowout airflow 170 is easily sucked into the suction port 415 as the suction airflow 171.
In addition, since the air flow rate during cooling operation is approximately 5 m ³ /min (300 m ³ /h), the blowing air flow 170 is decelerated to a wind speed of 1 m/s or less at the position of the suction port 415, and the blower 455 at the same position Compared to the wind speed of 1.5 to 2 m/s of the suction airflow of the suction port 415 due to the air volume of 500 m ³ /h, the wind speed is slower and the wind pressure is smaller, so more than 70% of the blowout airflow 170 becomes the suction airflow 171, It is sucked into the suction port 415.
The heat exchange unit 95 is operated at a strong notch ventilation air volume of 150 m ³ /h, and the conditioned air and the outdoor air heat exchanged by the heat exchange unit 95 are mixed in the branch pipe 360, and the mixed air is supplied to the living room 20. The air is blown out from the outlet 50 and the air outlet 52 of the passenger compartment 22, respectively. The return air after air conditioning passes through the return air ports 85 and 86 and returns to the entrance hall 17 as a return air flow 378, so the air volume of the return air flow 378 is 500 m ³ /h of air flow + 150 m ^{3 /h} of ventilation air flow. At 650 m ³ /h, the entrance hall 17 becomes a positive pressure, and the wind pressure of the return air flow toward the suction port 415 increases. Furthermore, the return air flow is outdoor air after heat exchange with air after air conditioning, and since it is slightly higher than the room temperature of the entrance hall 17, it becomes an upward air flow and heads toward the suction port 415.

The suction airflow 417 is attracted by the aforementioned return airflow 378, and together with the return airflow 378, more of the suction airflow is sucked into the louver 416, mixed with the blowout airflow 170 in the mixing section 180, and sucked in at the suction port 415. The temperature of the air is set to approximately 22°C, which is 8K lower than the room temperature of 30°C in the entrance hall 17, and air is blown out from the air outlets 50 and 52 at a rate of 250 m ³ /h at approximately 23°C, to the living room where the room temperature is approximately 30°C. 20 and guest room 22 are cooled. A part of the air in the mixing section 180 is sucked into the suction port 142 of the air conditioner indoor unit 15 as a suction airflow 181 through the space between the air conditioner indoor unit 15 and the ceiling chamber 414 .
In addition, when the air volume of the heat exchange unit 95 is reduced or stopped, or when the outdoor air heat exchanged by the heat exchange unit 95 is not blown out from the air outlet 50 of the living room 20 and the air outlet 52 of the guest room 22, the ventilation air volume may be reduced. Even if the air flow rate of 150 m ³ /h is not added to the return airflow 378 , the airflow 170 flows into the suction port 415 as the suction airflow 171 due to the relative positional relationship between the air outlet 140 and the suction port 415 of the air conditioner indoor unit 15 . The effect of being easily absorbed remains the same.

In addition, the set temperature, air volume, and air direction louver 145 in Embodiment 3 also apply to the operation when cooling both rooms, when cooling own room is given priority, when heating other rooms is given priority, when heating both rooms is operating, and when heating own room is given priority. By setting the angle, air flow rate, etc., it is possible to create an environment that suits the purpose of each operation.

The ceiling rooms 404 and 414 are part of the entrance hall 17, and are installed in a manner that protrudes from the attic space 62 on the first floor, which is basically an insulated space. It may be installed so as to penetrate through the space 62 and protrude into the attic space 9, which is also a heat-insulating space, above it.
Since the ceiling chambers 404 and 414 are installed in a heat-insulating space, the heat-insulating properties of the ceiling chambers 404 and 414 may be kept to the minimum necessary, such as changing the thickness or presence or absence of a heat-insulating material such as glass wool, depending on the heat-insulating properties of the heat-insulating space and the intake air temperature.
The airtightness of the ceiling chambers 404, 414 may be such that air does not leak from anywhere other than from below the ceiling chambers 404, 414, but since the area around the suction ports 404, 414 is an insulated space and a narrow space, Even if the airtightness is low, the efficiency will decrease to some extent, but there will be no problems such as condensation, and if the insulated space is also air-conditioned, even if the airtightness is not good, the efficiency will decrease to some extent, but there will be no problems such as condensation. .
Note that the shape of the ceiling chamber 414, the relative positional relationship between the air outlet 140 and the suction port 405 of the air conditioner indoor unit 15, and the shape of the louver 416 are such that the air flow 181 smoothly flows into the suction port 142 of the air conditioner indoor unit 15. Depending on the setting of the angle of the airflow direction louver 145 of the air conditioner indoor unit 15, the airflow setting, etc., when priority is given to other rooms, the outlet airflow 170 reaches the suction port 455, and when priority is given to the own room, it passes through the louver 416 and reaches the entrance. If the air is blown out below the hole 17, the effects and effects of this embodiment can be obtained and the objective can be achieved.

In this way, normally, the airflow from the air conditioner during cooling tends to become a downward airflow depending on the density of the air, and if the suction port is located on the ceiling, it is difficult to suck in a large amount of the airflow, but in this embodiment, Install the air inlet in front of the indoor air conditioner unit at a height equal to or lower than the height of the air outlet of the indoor air conditioner unit by creating a ceiling room, etc., make the direction of the air flow horizontal, lower the wind speed, and turn the blower on. By operating, the wind speed of the air sucked in at the suction port is increased, so that a large amount of airflow can be sucked in at the suction port even during cooling.
In addition, since the third embodiment does not depend on the operation of the heat exchange unit and the ventilation air volume, the total power consumption, including the power consumption of the air conditioner, can be reduced, and the room where the air conditioner is installed can be used more efficiently. This provides an air conditioning system that can adjust the temperature of a room without heating or cooling it and make it more comfortable.
In addition to the above-mentioned temperature adjustment, in terms of air purification, the building as a whole has the same functions and effects as in Embodiment 1, and in addition, fresh outside air after heat exchange is mixed with conditioned air, Since air is supplied directly to each room, it is possible to quickly improve air quality by reducing CO ₂ and odors in each room.
Further, since a pre-filter, an air purifying unit, a blower, etc. are provided in the suction port or the louver, maintenance such as cleaning and replacement can be easily performed by opening the louver.
In addition, since the air conditioner is installed embedded in the ceiling room, etc., the air conditioner is not noticeable in the design of the room, making it neat and tidy. , has a wide space for installing air conditioners, air inlets, ducts, etc., making it easy to install.

(Embodiment 6)
FIG. 25 is a flowchart of the airflow at the stair landing 18 when priority is given to cooling other rooms, showing the configuration of the air conditioning system in Embodiment 6 of the present invention.
Embodiment 6 differs from Embodiment 3 in the configuration of the suction port, blower, duct connection, etc., and as a result, has different functions and effects.Hereinafter, only the different parts will be explained, and the parts that are not explained will be explained. , which is basically the same as the third embodiment.

An air conditioning system 501 is installed in a two-story building (not shown) that is a highly airtight and highly insulated house, and air-conditions and ventilates rooms in the building.
As a configuration of this air conditioning system 501, the lower surface of the suction port 505 (suction port H) is installed on the ceiling above the air conditioner indoor unit 16 at the landing 18 of the stairs, and on the center of the air conditioner indoor unit 16 in the left and right direction. ing.
The suction port 505 is a rectangular parallelepiped that has airtightness and heat insulation properties and is made up of a suction louver 506 and a housing 507. Air blowers 555, 556, 557, 558 are installed so that their respective suction ports 565, 566, 567, and 568 are connected to the space within the suction port 505.

The suction port 505 is basically installed in the attic space 63 on the second floor, which is an insulated space, but if the height cannot be accommodated, it may be installed in the attic space 9, which is also an insulated space.
Since the suction port 505 is installed in a heat-insulating space, the heat-insulating properties of the suction port 505 may be kept to the minimum necessary, such as changing the thickness and presence or absence of a heat-insulating material such as glass wool, depending on the heat-insulating properties of the heat-insulating space and the temperature of the intake air.
The airtightness of the suction port 505 is such that the mating surfaces of the casings 507, the mating surfaces of the casings 507 and the suction louver 506, and the mating surfaces of the casing 507 and the blower 555, etc., do not inhale air from sources other than the suction louver 506. Although an airtight seal or the like is attached to the air inlet 505, the area around the suction port 505 is also a heat insulating space, and if it is a relatively narrow space of 5 tsubo or less, even if the airtightness is low, the efficiency will decrease somewhat, but condensation will not occur. If there is no such problem and the insulated space is also air-conditioned, most of the air sucked from the suction louver 506 will flow through the blower even if the housing 507 is not airtight, such as missing a part of the surface. If the air is sucked in from other sources than the suction louver 506, the efficiency will drop somewhat, but there will be no problems such as condensation.

Further, a pre-filter (not shown) having the same area as the suction louver 506 is provided directly above the suction louver 506, and an air purifying unit 540 is provided directly above the left half of the pre-filter (not shown). It is being
Maintenance such as cleaning of the pre-filter, air cleaning unit 540, and blowers 555, 556, 557, and 558 can be performed by removing the suction louver 506 from the landing 18 side of the stairs.
Then, air outlets 50, 51, 52, and 53 are installed in the ceilings 44, 45, 46, and 47 of the living room 20, bedroom 21, guest room 22, and children's room 23 (space B), respectively, and the air is sucked in through the inlet 505. In order to blow out from the air outlets 50, 51, 52, 53, ducts 570, 571, 572, 573 connected to blowers 555, 556, 557, 558, respectively, are passed through the insulated sections such as the attic spaces 62, 63, and the suction is carried out. By airtightly connecting the blowers 555, 556, 557, 558 connected to the opening 505 and the air outlets 50, 51, 52, 53 through ducts 570, 571, 572, 573, the air inlet of the stair landing 18 505 to the air outlet 50 of the living room 20, the air outlet 51 of the bedroom 21, the air outlet 52 of the guest room 22, and the air outlet 53 of the children's room 23 to form an air supply air path for the entire house.

Inside the blowers 555, 556, 557, and 558, there are a DC motor (brushless DC motor) (not shown), which is more energy efficient than an AC motor and can control the rotation speed over a wider range, and a sirocco fan (not shown). ) is provided. When the air volume is set using a switch (not shown), air is sucked in from suction ports 565, 566, 567, and 568 by the rotation of the sirocco fan, and the sucked air flows through ducts 570, 571, 572, and 573. Air is blown out from an air outlet 50 in the living room 20, an air outlet 52 in the guest room 22, an air outlet 51 in the bedroom 21, and an air outlet 53 in the children's room 23.
The maximum air volume (strong notch) of the blowers 555, 556, 557, and 558 is each 250 m ³ /h, but the maximum air volume sucked from the suction louver 506 and passing through the suction port 505 is 1000 m ³ /h.
Therefore, the suction louver 506 has an appropriate suction area to suck in the maximum air volume of 1000 m ³ /h, the external dimensions are 500 mm * 1000 mm, and the height of the suction port 505 is set so that the air volume is reduced due to internal pressure loss. The height is set at 700mm to prevent it from falling.

Furthermore, as a configuration of the air conditioning system 501, a return air port 85 (return air part) such as an undercut is provided in the door (not shown) between the guest room 22 and the living room 20, and By providing a return air port 86 (return air part) such as an undercut in the door (not shown) between the rooms, the air can be passed from the guest room 22 and living room 20 to the entrance hall 17, and from the entrance hall 17 through the stairs. A return air path is formed up to the landing 18. A return air port 87 (return air part) such as an undercut is provided in the door (not shown) between the children's room 23 and the bedroom 21, and a door (not shown) between the bedroom 21 and the stair landing 18 is provided. By providing a return air port 88 (return air portion) such as an undercut, a return air path from the children's room 23 and bedroom 21 to the landing 18 of the stairs is formed.
Then, the supply air path and the return air path are connected, and the supply air, which is conditioned air that is a mixture of the blown air blown from the air conditioner indoor unit 16 at the stair landing 18 and the air from the stair landing 18, is transferred to the suction louver 506. Suction is carried out through the suction port 505, through the blower 555, etc., through the duct 570, etc., the air outlet 50 in the living room 20, the air outlet 52 in the guest room 22, the air outlet 51 in the bedroom 21, the air outlet 53 in the children's room 23. Blow out from each. A circulating air path (not shown) is formed in which the air-conditioned return air passes through the return air ports 85, 86, 87, 88, the entrance hall 17, and the stairs, and returns to the landing 18 of the stairs.

In the above configuration, the flow of air when priority is given to cooling other rooms will be explained.
In summer, when the outside temperature is approximately 35°C, the air conditioner is not operating in the stair landing 18, living room 20, bedroom 21, guest room 22, and children's room 23, and the living room 20 and bedroom 21 are not equipped with an air conditioner indoor unit 16. When you want to cool the guest room 22 and children's room 23, but there is no need to cool the stair landing 18, this is called cooling other room priority operation, but the room temperature of the stair landing 18 is not air conditioned, so it is approximately The air conditioner indoor unit 16 is set to a relatively low set temperature of 25° C. using a remote control (not shown), the air volume is set to medium, and cooling operation is started. Then, by setting the angle of the wind direction louver 146, the angle of the blowing airflow 170 is adjusted to the "horizontal direction (0°)", and the air volume of the blowers 555, 556, 557, and 558 is adjusted to the maximum of 250 m ³ /h. drive with
Air at 30°C sucked in from the suction port 143 of the indoor air conditioner unit 16 is detected by a suction air temperature sensor (not shown). The inverter drive frequency of the compressor (not shown) is driven at a high frequency to control the electric expansion valve (not shown), outdoor blower (not shown), etc. (not shown) to increase the cooling capacity of the air conditioner, and adjust the temperature of the airflow 170 from the air conditioner indoor unit 16 to a lower temperature of 18°C. .

The temperature of the blowout airflow 170 is 18°C, and it tends to become a downward airflow depending on the density of the air, and because the airflow rate is about 7m ³ /min (420m ³ /h) during cooling operation, it is above the center of the air conditioner indoor unit 16 in the left and right direction. At the position of the suction louver 506 installed on the ceiling within about 1 m from above the air conditioner indoor unit 16, the blowout airflow 170 has a wind speed of about 1.5 m/s, but the total air volume of the blower 555 and others at the same position is Compared to the wind speed of 2 m/s of the suction airflow of the suction louver 506 at 1000 m ³ /h, the wind speed is slower and the wind pressure is smaller, so more than 70% of the outlet airflow 170 becomes the suction airflows 576 and 577 which are upward airflows. , is sucked into the suction louver 506.
In addition, the heat exchange unit (not shown) is operated at a strong notch ventilation air volume of 280 m ³ /h for the entire building, and the heat-exchanged outdoor air flows into ducts 570, 571, 572, and 573, each of 70 m ³ /h of ventilation air is mixed with conditioned air, and 250 m ³ /h of conditioned air + 70 m ³ /h of ventilation air are blown into the living room 20, bedroom 21, guest room 22, and children's room 23, respectively. As return air after air conditioning, on the second floor, it passes through the return air ports 87 and 88 and returns to the stair landing 18 as a return air flow 578, and on the first floor, it passes through the return air ports 85 and 86 and the entrance hall 17. , through the stairs (not shown) and once returns to the staircase landing 18 as a return air flow 579, so the total air volume of the return air flows 578 and 579 is 1000 m ³ /h of air flow + 280 m ³ /h of ventilation air flow. At 1280 m ³ /h, the landing 18 of the stairs becomes a positive pressure, and the wind pressure of the return air flow toward the suction louver 506 increases. Furthermore, the return air flows 578 and 579 are air after air conditioning and ventilation air (outdoor air after heat exchange), and are slightly higher than the room temperature of the stair landing 18, so they become upward air currents and head towards the suction louver 506. .

The suction airflows 576, 577 are attracted by the aforementioned return airflows 578, 579, and together with the return airflows 578, 579, more suction airflows are directly sucked into the suction louver 506, and the temperature of the air sucked into the suction louver 506 decreases. is set to approximately 22°C, which is 8K lower than the room temperature of 30°C at the landing 18 of the stairs, and 250 m ³ /h of air supply and 70 m ³ /h of ventilation at approximately 23°C are supplied from the air outlets 50, 51, 52, and 53, respectively. It is blown out as air to cool and ventilate the living room 20, bedroom 21, guest room 22, and children's room 23 whose room temperature is about 30°C.
A part of the blowout airflow 170 that is not directly sucked in is also mixed with return airflows 578, 579, etc. in a mixing section 580, and most of it is sucked into the suction port 143 of the air conditioner indoor unit 16 as a suction airflow 581.
For air purification, the suction airflow 577 passes through a pre-filter (not shown) in the suction louver 506, passes through the air purification unit 540 located directly above the left half of the pre-filter, and the purified air is transferred to the suction air purifier. It merges with the air that directly flowed into the opening 505, becomes clean supply air, and replaces the air in the living room 20, bedroom 21, guest room 22, and children's room 23, while becoming slightly dirty return air and returning to the stairs. By returning to the landing 18 and repeating the air purification, the air cleanliness of the stair landing 18, entrance hall 17, living room 20, bedroom 21, guest room 22, and children's room 23 is maintained at a high level.

By the operation of the heat exchange unit (not shown), the heat-exchanged outdoor air is mixed with the conditioned air sucked in by the suction louver 506 sent from the blower 555 and others in the duct 570 and others, and is blown out into the room, etc. Return air containing CO ₂ and humidity increased by people by supplying fresh outside air and conditioning the room, etc. returns to the entrance room 17 and stair landing 18 through return air ports 86 and 88. A part of the air in the entrance room 17 and the stair landing 18 passes through the louver 135 provided between the toilet 100 and the entrance hall 17 and the louver 136 provided between the toilet 101 and the stair landing 18. The air is discharged as an exhaust airflow (not shown) and an exhaust airflow 186, respectively, and the air quality in the staircase landing 18, entrance hall 17, living room 20, bedroom 21, guest room 22, and children's room 23 is maintained at a higher level.

In addition, if you want to cool only the bedroom 21 and children's room 23, you only need to operate only the blowers 556 and 558 connected to the air outlets 51 and 53 at an air flow rate of 250 m ³ /h, but in that case, from the suction louver 506 Since the air volume of the air to be taken in is reduced to 500 m ³ /h, the set air volume of the air conditioner indoor unit 16 is set to low, and the air volume of the air conditioner indoor unit 15 is reduced to about 5 m ³ /min (300 m ³ /h), which is a little lower than the air volume of the air conditioner indoor unit 15. At the position of the suction louver 506 installed on the ceiling within about 1 m from above the air conditioner indoor unit 15 on the center in the left and right direction, the blowing airflow 570 is decelerated to a wind speed of 1 m/s or less, and the blower at the same position 556 Compared to the wind speed of 1.5 to 2 m/s of the suction airflow of the suction louver 506 with an air volume of 500 m ³ /h, the wind speed is slower and the wind pressure is smaller, so more than 70% of the outlet airflow 170 is an upward airflow. The air becomes suction airflows 576 and 577 and is sucked into the suction louver 506.
Also, when you want to operate the living room 20, bedroom 21, guest room 22, and children's room 23 while cooling the stair landing 18, this is called cooling operation for both rooms, but since the stair landing 18 is being cooled. , since the room temperature is a little low at about 27 degrees Celsius, the cooling in other rooms is strengthened while suppressing the cooling in the own room. Basically, it is the same as the cooling other room priority operation shown in Figure 23 described above, but the air conditioner in the room Using a remote control (not shown), the temperature of the air conditioner 16 is set to a low temperature of 23° C., the air volume is set to medium, and cooling operation is continued. Then, the angle of the wind direction louver 146 is set, the angle of the blowing airflow 170 is adjusted to the "horizontal direction (0°)", and the air blowing volume of the blower 555 and others is operated at the maximum air flow of 250 m ³ /h.

Furthermore, regarding the operation when priority is given to cooling one's own room, when priority is given to heating other rooms, when the heating is performed in both rooms, and when the heating is given priority to one's own room, the differences between each operation, for example, are based on the time when priority is given to cooling other rooms in the third embodiment. , the set temperature, the air volume, the angle of the airflow direction louver 146, the air flow rate, etc. In this embodiment as well, each operation is adjusted based on the priority when cooling other rooms. It is possible to create an environment that suits the purpose of
Note that in this embodiment, the air conditioning system 501 is installed at the landing 18 of the stairs, but it may also be installed in the entrance hall 17, or if there are many rooms to be air-conditioned, it may be installed in both. Good too.
In this way, in this embodiment, the suction louver and the suction port are provided on the ceiling of the room where the air conditioner is installed, so the design of the room is such that the suction louver is not noticeable and looks neat, and the suction port is placed on the wall. In many cases, the depth for installing air inlets and ducts is small, but the ceiling space, such as an attic space, has enough depth and there is a wide space for installing suction ports and ducts, so it is easy to install. Excellent.
Normally, during cooling, the airflow from the air conditioner tends to become a downward airflow depending on the density of the air, and if the suction louver is located on the ceiling, it is difficult to suck in much of the airflow from the air conditioner. By installing a suction louver near the top, setting the direction of the blowing airflow horizontally, lowering the wind speed, and operating multiple blowers, the wind speed of the air sucked into the suction louver is increased, and the wind speed of the return air flow to the suction louver is increased. By making the return air flow faster, the blown airflow can be drawn into the suction louver by the return airflow, so even during cooling, a large amount of the blown airflow can be sucked into the suction louver.

Furthermore, since the number of blowers and the total amount of air blowing are increased compared to the third embodiment, their power consumption increases slightly, but since it does not depend on the operation of the heat exchange unit and the ventilation air volume, the power consumption is also included in the air conditioner's power consumption. This provides an air conditioning system that reduces total power consumption, does not unnecessarily heat or cool the room where the air conditioner is installed, and can also adjust the temperature of the room where the air conditioner is not installed, making it more comfortable.
In addition to the above-mentioned temperature adjustment, in terms of air purification, the building as a whole has the same functions and effects as in Embodiment 1, and in addition, fresh outside air after heat exchange is mixed with conditioned air, Since air is supplied directly to each room, it is possible to quickly improve air quality by reducing CO ₂ and odors in each room.
Furthermore, since a pre-filter, an air purifying unit, a blower, etc. are provided in the suction port, maintenance such as cleaning and replacement can be easily performed by opening the suction louver.

(Embodiment 7)
FIG. 26 is a sectional view of a building showing the configuration of an air conditioning system 601 in Embodiment 7 of the present invention.
Embodiment 7 differs from Embodiment 1 in the structure of the return air passage such as the return air opening such as an undercut, and as a result, the operation and effect are different.Hereinafter, only the different parts will be explained. Portions not explained are basically the same as in the first embodiment.

On the first floor 4 of the building 3, the door between the guest room 22 and the living room 20 (not shown) and the door between the living room 20 and the entrance hall 17 (not shown) are provided with return air ports such as undercuts. It has not been done.
Further, on the second floor 5, the door (not shown) between the children's room 23 and the bedroom 21 is not provided with a return air opening such as an undercut.
This is useful when there is no structural space for a return air vent, when you want to prevent noise from leaking from the next room through the return air vent, when you want to protect your privacy by closing the door firmly, or when you want to protect your privacy more fully. This may be done when a space in the middle of the return air path is not air-conditioned in order to reduce the air conditioning load.

On the first floor 4, the ceilings 44 and 46 of the living room 20 and the guest room 22 are provided with return air suction ports 640 and 641, respectively, through which return air after air conditioning is sucked, and a return air blower 655 and duct installed in the ceiling are provided. Return air suction ports 640 and 641 are connected by 670 and 671, respectively. A return air outlet 650 provided on the ceiling of the entrance hall 17 and a return air blower 655 are connected by a duct 672. This forms a return air passage on the first floor from the living room 20 and guest room 22 to the entrance hall 17.
The return air blower 655 includes a fan (not shown) and a motor (not shown). When the return air blower 655 is operated, the conditioned air blown out from the outlets 50 and 52 air-conditions the living room 20 and the guest room 22. The return air after air conditioning is sucked in from the return air suction ports 640 and 641, and the return air that has passed through the ducts 670 and 671 passes through the return air blower 655 and the duct 672, and then from the return air outlet 650 to the entrance hall 17. Speech out.

On the second floor 5, on the ceiling 47 of the children's room 23, there is a return air blower 656 having a return air suction port 642 through which return air after air conditioning is sucked, a fan (not shown), and a motor (not shown). establish. The return air blower 656 is connected by a duct 673 to a return air outlet 651 provided in the ceiling of the staircase landing 18. This forms a second-floor return air passage from the bedroom 21 and children's room 23 to the staircase landing 18.

When the return air blower 656 is operated, the conditioned air blown out from the outlet 53 air-conditions the children's room 23. Return air after air conditioning is sucked in from the return air suction port 642, passes through the duct 673, and is blown out from the return air outlet 651 to the landing 18 of the stairs.
The conditioned air blown out from the outlet 51 air-conditions the bedroom 21. Return air after air conditioning returns to the landing 18 of the stairs through a return air port 88 (return air portion) such as an undercut, as in the first embodiment.
The return air outlets 650 and 651 are provided in the ceiling near the opposite wall away from the air conditioner indoor units 15 and 16 and the suction ports (suction ports C) 42 and 43 in the entrance hall 17 and the stair landing 18. ing. Therefore, the return air blown out from the return air outlets 650 and 651 is not immediately sucked into the air conditioner indoor units 15 and 16 and the suction ports 42 and 43, like the return air that returns from the undercut 88. The return air is mixed with the air in the entrance hall 17 and stair landing 18, etc., and the air blown out from the air conditioner indoor units 15 and 16, and the inside of the entrance hall 17 and stair landing 18 becomes uniform in temperature and humidity. The air is sucked in from the suction ports 42 and 43 as air supply. In particular, since the suction ports (suction port C) 42 and 43 are provided below the air conditioner indoor units 15 and 16, the air blown from the return air outlets 650 and 651 provided in the ceiling is blown downward. Entrance hall 17, descend along the right wall of staircase landing 18. The blown air is mixed well with the air flowing from near the floor toward the suction ports 42 and 43 and the blown air blown horizontally and downward from the air conditioner indoor units 15 and 16, and is sucked into the suction ports 42 and 43. .

If you want to actively air condition the living room 20, bedroom 21, guest room 22, and children's room 23 without actively air conditioning the entrance hall 17 and stair landing 18, use the air conditioner indoor units 15 and 16 air inlets (not shown). ), return air outlets 650, 651 are provided in the ceiling immediately above the air conditioner indoor units 15, 16. Then, the return air after air conditioning does not stagnate in the entrance hall 17 and the staircase landing 18, but is sucked into the air conditioner indoor units 15 and 16, blown out, and sucked through the suction ports 42 and 43. As a result, the overall air conditioning load can be reduced, resulting in greater energy savings, and rooms that need to be actively air-conditioned can be air-conditioned more quickly.
By providing the return air suction ports 640, 641, and 642 at positions as far away as possible from the blow-off ports 50, 52, and 53, the interiors of the living room 20, guest room 22, and children's room 23 can be uniformly air-conditioned.
In addition, by adjusting the air volume of the return air blowers 655 and 656, the temperature and humidity of the entrance hall 17, stair landing 18, living room 20, guest room 22, and children's room 23 can be adjusted to suit individual preferences. It is.

In this embodiment, on the first floor 4, a return air blower 655 is provided in the ceiling between the return air suction ports 640, 641 and the return air outlet 650. This can reduce the noise generated by the return air blower 655 in residential spaces such as the living room 20 by separating the return air blower 655 from the return air inlets 640, 641 and the return air outlet 650 and connecting them with ducts. This is to make it smaller. In order to further prevent the propagation of noise, a part of a sound absorbing duct may be provided between the return air inlets 640, 641 and the return air outlet 650.
However, on the second floor 5, there is a method that installs the return air inlet 642 and the return air blower 656 as one unit on the ceiling, removes the return air inlet 642 from the children's room 23, and performs maintenance of the return air blower 656. However, the maintenance and workability of the return air blower can be improved.
Further, in this embodiment, return air blowers 655 and 656 are provided between the return air suction port and the return air outlet. If the return air inlet and return air outlet are installed in adjacent rooms and are very close to each other, or if the duct is large relative to the air volume, there is a Even if the return air blowers 655 and 656 are not provided, the minimum necessary amount of air is returned by operating the blowers 55 and 56. Therefore, although there is a possibility that air conditioning performance etc. may be degraded, there are advantages in that maintenance and workability are improved and initial costs are reduced.
Further, in this embodiment, the return air suction port and the return air outlet are connected by a duct. Instead of a duct, a part of the four sides of the attic space 62, 63 of the return air intake and return air outlet is surrounded by wood and heat insulating material, etc., and this is used as a chamber to return air after air conditioning. It is also possible to vent.

(Embodiment 8)
FIG. 27 is a sectional view of a building showing the configuration of an air conditioning system 701 in Embodiment 8 of the present invention.
Embodiment 8 differs from Embodiment 3 in the configuration of the return air passage such as the return air opening such as an undercut, and as a result, the operation and effect are different.Hereinafter, only the different parts will be explained. Portions not explained are basically the same as in the third embodiment.

On the first floor 4 of the building 3, a private room 720 is provided between the entrance hall 17 and the living room 20, a door (not shown) between the private room 720 and the entrance hall 17, and a door between the living room 20 and the private room 720. The door (not shown) between the guest room 22 and the living room 20 (not shown) is not provided with a return air opening such as an undercut.
The private room 720 is not provided with an air outlet.
Further, on the second floor 5, the door (not shown) between the children's room 23 and the bedroom 21 is not provided with a return air opening such as an undercut.
This is useful when there is no structural space for a return air vent, when you want to prevent noise from leaking from the next room through the return air vent, when you want to protect your privacy by tightly closing the door, or when you want to protect the overall air conditioning. In order to reduce the load, this may be done when the space in the middle of the return air path is not air-conditioned.

On the first floor 4, the floors of the living room 20 and guest room 22 (not shown) are provided with return air suction ports 740 and 741, respectively, through which air-conditioned return air is sucked, and a return air blower provided in the underfloor space 10 is provided. Return air suction ports 740 and 741 are connected by 755 and ducts 770 and 771, respectively. A return air outlet 750 provided on the floor (not shown) of the entrance hall 17 and a return air blower 755 are connected by a duct 772. This forms a return air passage on the first floor from the living room 20 and guest room 22 to the entrance hall 17.
The return air blower 755 includes a fan (not shown) and a motor (not shown). When the return air blower 755 is operated, the conditioned air blown out from the outlets 50 and 52 air-conditions the living room 20 and the guest room 22. The return air after air conditioning is sucked in through the return air suction ports 740 and 741, and the return air that has passed through the ducts 770 and 771 passes through the return air blower 755 and the duct 772, and then from the return air outlet 750 to the entrance hall 17. Speech out.

On the second floor 5, the floor of the children's room 23 (not shown) is equipped with a return air intake port 742 through which return air after air conditioning is sucked, a fan (not shown), and a motor (not shown). A blower 756 is provided. The return air blower 756 is connected by a duct 773 to a return air outlet 751 provided on the floor (not shown) of the landing 18 of the stairs. This forms a second-floor return air passage from the bedroom 21 and children's room 23 to the staircase landing 18.

When the return air blower 756 is operated, the conditioned air blown out from the outlet 53 air-conditions the children's room 23. The return air after air conditioning is sucked in from the return air suction port 742, passes through the duct 773, and is blown out from the return air outlet 751 to the landing 18 of the stairs.
Return air after conditioning the bedroom 21 of the conditioned air blown out from the outlet 51 returns to the landing 18 of the stairs through the return air outlet 88 (return air part) such as an undercut, as in the third embodiment.
The return air outlets 750 and 751 are provided on the floor near the opposite wall away from the air conditioner indoor units 15 and 16 and the suction ports (suction ports F) 305 and 306 in the entrance hall 17 and the staircase landing 18. ing. Therefore, the return air blown out from the return air outlets 750 and 751 is not immediately sucked into the air conditioner indoor units 15 and 16 and the suction ports 305 and 306, similar to the return air that returns from the undercut 88. The return air is mixed with the air in the entrance hall 17 and stair landing 18, etc., and the air blown out from the air conditioner indoor units 15 and 16, and the inside of the entrance hall 17 and stair landing 18 becomes uniform in temperature and humidity. The air is sucked in from the suction ports 305 and 306 as air supply. In particular, since the suction ports (suction port F) 305 and 306 are provided above and slightly in front of the air conditioner indoor units 15 and 16, the air blown from the return air outlets 750 and 751 provided on the floor is directed upward. The balloon rises along the wall to the right of entrance hall 17 and stair landing 18. The blown air is mixed well with the air flowing from near the ceiling toward the suction ports 305 and 306 and the blown air blown horizontally and downward from the air conditioner indoor units 15 and 16, and is sucked into the suction ports 305 and 306. .

By providing the return air suction ports 740, 741, and 742 at positions as far away as possible from the blow-off ports 50, 52, and 53, the interiors of the living room 20, guest room 22, and children's room 23 can be uniformly air-conditioned.
In addition, by adjusting the air volume of the return air blowers 755 and 756, the temperature and humidity of the entrance hall 17, stair landing 18, living room 20, guest room 22, and children's room 23 can be adjusted to suit individual preferences. It is.

In this embodiment, on the first floor 4, a return air blower 755 is provided in the underfloor space 10 between the return air suction ports 740, 741 and the return air outlet 750. This can reduce the noise generated by the return air blower 755 in living spaces such as the living room 20 by separating the return air blower 755 from the return air inlets 740, 741 and the return air outlet 750 and connecting them with ducts. This is to make it smaller. In order to further prevent the propagation of noise, a part of a sound absorbing duct may be provided between the return air intake ports 740, 741 and the return air outlet 750.
On the second floor 5, the return air suction port 742 and the return air blower 756 are installed as one in the attic space 62 under the floor, and the return air suction port 742 is removed from the child's room 23, and the return air blower 756 is maintained. By performing the above steps, maintenance and workability of the return air blower 756 can be improved.
Further, in this embodiment, return air blowers 755 and 756 are provided between the return air suction port and the return air outlet. If the return air inlet and return air outlet are installed in adjacent rooms and are very close to each other, or if the duct is large relative to the air volume, the return air inlet and return air outlet may be installed between the return air inlet and the return air outlet. Even if the air blowers 755 and 756 are not provided, the minimum necessary amount of air is returned by operating the air blowers 355 and 356. Therefore, although there is a possibility that air conditioning performance etc. may be degraded, there are advantages in that maintenance and workability are improved and initial costs are reduced.
Further, in this embodiment, the return air suction port and the return air outlet are connected by a duct. Instead of a duct, a part of the four sides of the underfloor space 10 and attic space 62 side of the return air inlet and return air outlet are surrounded by wood and heat insulating material, etc., and this is used as a chamber. It is also possible to pass return air.

(Embodiment 9)
FIG. 28 is a sectional view of a building showing the configuration of an air conditioning system 801 in Embodiment 9 of the present invention.
A building 803 is an apartment complex having multiple floors, and an air conditioning system 801 is installed in a house 804 having floors above and below the building 803, and air-conditions and ventilates rooms in the house 804.
Four of the six sides of the house 804 (top, bottom, left, right, front and back) are in contact with neighboring houses. The windows are an insulating sash 807 on the south side, such as a triple-glazed resin sash, and an insulating sash 808 on the north side, and the door is an insulating door (not shown), so that the entire room and space in the house 804 is an airtight and insulated space. There is.

The air conditioner indoor unit 815 is part of an air conditioner that is a component of the air conditioning system 801. The air conditioner indoor unit 815 is provided on the south wall 834 of the living room 820 (space A).
In this embodiment, the air conditioner indoor unit 815 is installed in a living room 820, but it can also be installed in living rooms such as a bedroom 821, a guest room (not shown), a children's room (not shown), or a walk-in closet (not shown). ), a storage room (not shown), a hallway 825, a machine room (not shown), or other non-occupied rooms.
The air conditioner indoor unit 815, which is a part of the air conditioner, is connected to the air conditioner outdoor unit 830 installed on the balcony 805 by refrigerant piping (not shown) and electrical wiring (not shown), and the system is connected to the air conditioner ( air conditioner (not shown).

In addition, as a configuration of this air conditioning system 801, a suction port 842 (suction port J) is installed on the floor 836 of the living room 820 below the wall 835 opposite to the wall 834 where the air conditioner indoor unit 815 is installed. An air outlet 850 is installed on the floor 836 of the room. A blower 855 having a fan (not shown) and a motor (not shown) is provided on the underfloor space 810 side of the air outlet 850 so as to be connected to the air outlet 850 . A rectangular parallelepiped chamber 860 having airtightness and heat insulation properties is provided in the underfloor space 810 so as to surround the suction port 842 and the blower 855 together. By operating the blower 855, the air sucked in by the suction port 842 passes through the chamber 860, is sucked into the blower 855, and is blown out from the blower port 850. In this way, an air supply path from the suction port 842 of the living room 820 to the blow-off port 850 of the bedroom 821 is formed.

Furthermore, as a configuration of the air conditioning system 801, a return air suction port 845 is installed on the ceiling 847 of the bedroom 821, through which return air after air conditioning the bedroom 821 is sucked, and an air purifying unit is installed inside the return air suction port 845. It has 840. A return air blower 856 having a return air outlet 851, a fan (not shown), and a motor (not shown) is provided on the ceiling 848 of the living room 820. It is connected to the return air suction port 845 by a duct 873, a branch pipe 874, and a duct 875. This forms a return air path from the bedroom 821 to the living room 820.
Then, the supply air path and the return air path are connected, and supply air, which is conditioned air that is a mixture of the blown air from the air conditioner indoor unit 815 in the living room 820 and the air in the living room 820, is sucked in from the suction port 842. , chamber 860 , and blower 855 , and is blown out from the air outlet 850 in the bedroom 821 . Return air after air conditioning is sucked in from the return air suction port 845, passes through the duct 875, branch pipe 874, duct 873, return air blower 856, and is blown out from the return air outlet 851 into the living room 820. A channel (not shown) is formed.

In the hallway 825, a heat exchange unit 895 is installed in the attic space 862, which recovers all the heat of the indoor air to the outdoor air when the outdoor air is introduced into the room and the indoor air is discharged outdoors, and the house 804 is ventilated. ing.
In this embodiment, the heat exchange unit 895 has a 24-hour ventilation air volume of 100 m ³ /h, a strong notch ventilation air volume of 150 m 3 /h, and a total heat exchange rate of about 70%.
A ventilation outlet 902 such as an exhaust louver is provided on the ceiling of the hallway 825 to exhaust the air inside the hallway 825. Ventilation exhaust port 902 is connected to heat exchange unit 895.
An outdoor exhaust hood 905 is provided in a through hole in the outer wall of the building 803, and is connected to a heat exchange unit 895 through an exhaust duct 907.
The heat exchange unit 895 includes an introduction fan (not shown) that introduces outdoor air, an exhaust fan (not shown) that exhausts indoor air, a motor (not shown), and recovers all heat from indoor air to outdoor air. It has a heat exchange element 910.

Note that the heat exchange unit 895 is installed so as to be in contact with the ceiling of the hallway 825. Therefore, maintenance such as periodic cleaning of the heat exchange element 910 and element pre-filter (not shown) can be easily performed from the ceiling of the hallway 825.
As a result, all the heat of the indoor air is recovered from the ventilation exhaust port 902 by the heat exchange unit 895, and the indoor air is exhausted to the outside from the outdoor exhaust hood 905 through the exhaust duct 907.
The indoor air exhaust path is formed between the ventilation exhaust port 902 and the outdoor exhaust hood 905, and is formed by a heat exchange unit 895 and an exhaust duct 907, respectively. Although the exhaust fan of the heat exchange unit 895 is provided in the indoor air exhaust path, other exhaust fans may be provided in addition to or together with the exhaust fan.
An outdoor air supply hood 915 is provided in a through hole in the outer wall of the building 3, and is connected to a heat exchange unit 895 through an air supply duct A917.

A filter box 920 is provided in the air supply duct A917 so as to be in contact with the ceiling of the hallway 825. Since the filter box 920 has an outside air cleaning filter (not shown) that cleans the outdoor air introduced into the attic space 862, maintenance such as cleaning the filter from the ceiling can be easily performed.
The heat exchange unit 895 and the branch pipe 874 are connected by an air supply duct B930.
Thereby, outdoor air is introduced from the outdoor air supply hood 915, passes through the air supply duct A917, and is purified by the filter box 920. The outdoor air recovers all heat in the heat exchange unit 895, passes through the supply air duct B930, joins with the return air from the bedroom 821 at the branch pipe 874, passes through the duct 873 and the return air blower 856, and is returned. Air is blown out from the air outlet 851 into the living room 820 .

The outdoor air introduction path is formed between the outdoor air supply hood 915 and the return air outlet 851, and includes the air supply duct A917, the filter box 920, the heat exchange air unit 895, the air supply duct B930, the branch pipe 874, and the duct. Formed by 873.
The hallway 825 is not provided with an outlet for blowing out supply air, which is conditioned air, and undercuts 885 and 886 are provided between the living room 820 and the bedroom 821, respectively, for doors through which air enters and exits. . As the heat exchange unit 895 operates, a portion of the return air, which is air that has been air-conditioned and ventilated in the living room 820 and the bedroom 821, flows into the hallway 825 through the undercuts 885 and 886. When the air-conditioned environment is stable, the air quality (temperature, humidity, cleanliness, etc.) in the hallway is close to that of conditioned air.

By operating the heat exchange unit 895, fresh outdoor air that has been purified by the outside air purifying filter 920 provided in the outdoor air introduction path is introduced by the introduction fan of the heat exchange air unit 895, and the people in the living room 820 and bedroom 821 are _CO2 from people's breathing, air contaminated with moisture and dust emitted by people, and a portion of return air, which is air conditioned in rooms, etc., pass through the indoor air exhaust path from the ventilation exhaust port 902. , enters the heat exchange unit 895 by the exhaust fan of the heat exchange unit 895. Then, after all the heat is exchanged with the outdoor air in the heat exchange element 910, it is discharged to the outside, so that dust, mold spores, etc. cannot enter the house 804 from outside. Therefore, CO ₂ , moisture, odors, etc. caused by daily life are discharged outside, and through heat exchange, it is possible to save energy, ventilate the house 804, and reduce dust, moisture, mold spores, etc. inside the building.
Note that in this embodiment, a ventilation exhaust port 902 is provided in the hallway 825. In areas other than hallways, such as toilets, washrooms, bathrooms, and kitchens, ventilation outlets, undercuts, and louvers are installed in so-called dirty zones, which are rooms and spaces where odors, moisture, and harmful substances are likely to generate and accumulate. You can. In that case, they can be directly discharged outside without passing through other rooms or spaces. However, if the heat exchange element 910 of the heat exchange unit 895 is not resistant to deterioration due to moisture in the bathroom, oil in the kitchen, etc., it is necessary to provide another ventilation fan.

In the living room 820, a return air outlet 851 is provided on the ceiling 848 within 1 m in front of the air conditioner indoor unit 815 and on the center of the air conditioner indoor unit 815 in the left and right direction. A suction port 842 (suction port J) is installed below a wall 835 which is a floor 836 and faces a wall 834 where an air conditioner indoor unit 815 is installed.
The combined air of the return air that has conditioned the bedroom 821 and the outdoor air that has undergone heat exchange in the heat exchange unit 895 is blown downward from the return air outlet 851. Most of the blown air is sucked into the upper suction port (not shown) of the air conditioner indoor unit 815, and the conditioned air is blown out from the air conditioner indoor unit 815. The blown air from the return air outlet 851 that is not sucked into the air conditioner indoor unit 815 causes the blown air from the air conditioner indoor unit 815 to be further drawn downward and toward the suction port 842.
The concept of selecting the capacity of the air conditioner indoor unit 815, setting the air volume, set temperature, wind direction louver, etc. is the same as that described in the first to eighth embodiments.

The air blown from the air conditioner indoor unit 815 is sucked into the suction port 842 while air-conditioning and ventilating the living room 820 and making the living room 820 uniform in air quality.
The reason why the suction port 842 is provided in the floor is because in apartment complexes, the cooling load is usually large due to heat storage in concrete, and the heating load is small. An air conditioner indoor unit is installed in the building, and since the cooling load is large due to solar radiation load, etc., consideration has been given to the flow of wind that is advantageous during cooling operation. When cooling the living room, the blown air has a heavy specific gravity and tends to flow downward, so a suction port 842 is provided on the floor so that a large amount of the blown air can be easily sucked in. During heating operation, even if the airflow direction louver angle of the air conditioner indoor unit 815 is set directly downward, the air tends to rise due to its specific gravity, but due to the downward attraction of the air blown from the return air outlet 851, it tends to flow toward the suction port 842.

By providing the return air suction port 845 of the bedroom 821 at a position diagonally far from the air outlet 850, the inside of the bedroom 821 can be uniformly air-conditioned.
In the bedroom 821, the return air after air conditioning is sucked in from the return air intake port 845, a part of the return air passes through the air purification unit 840, is purified, and is blown out from the return air outlet 851 in the living room 820. Then, he returns to the bedroom 821. Therefore, as a result, the air in the living room 820 and the bedroom 821 is purified.
Maintenance such as cleaning and replacement of the air purifying unit 840 can be easily performed from the bedroom 821 side.
In order to return the air conditioned air from the bedroom 821 on the north side to the living room 820 on the south side, the temperature in the living room 820 will naturally decrease at night in summer by simply turning the circulation air path without operating the air conditioner indoor unit 815. Go down.
Furthermore, the concept of the air volume of the blower 855 and the return air blower 856 is the same as in Embodiments 1 to 8. By adjusting the air volume, the temperature and humidity of the living room 820 and bedroom 821 can be adjusted to suit individual tastes.

In this embodiment, the suction port 842 and the blowout port 850 are connected by a chamber 860. This has the advantage of being able to freely change the number and layout of inlets and outlets, making cleaning and other maintenance easier in cases where the floors are double-layered, such as in apartment complexes. However, if it is difficult to maintain airtightness or maintenance is not easy, it is better to connect them with ducts.
The internal structure of the return air suction port 845 is the same as that in FIG. 3, and the effect of the air cleaning unit 840 is also the same as in the first embodiment.

Furthermore, in this embodiment, the outdoor air and return air are combined in the branch pipe 874 and blown out from the return air outlet 851, but the outdoor air ventilation supply port and the return air outlet are separately provided. A ventilation outlet for outdoor air may be provided to blow out outside the living room 820. The number of air outlets and ducts increases, and duct space is required in the attic space, but apart from the flow of ventilation in the house 804 and the flow of air conditioning, for example, the ventilation outlet can be used as a toilet in the so-called dirty zone. , in washrooms, etc., and ventilation air intakes in hallways. By doing so, outdoor air flows from the hallway to the toilet, etc., and odor, moisture, etc. are discharged from the toilet to the outside.

In addition, in this embodiment, the return air inlet and the return air outlet are connected by a duct, but instead of the duct, a part of the four sides of the attic space 862 side of the return air inlet and the return air outlet It is also possible to make a case surrounded by wood and heat insulating material, etc., and use it as a chamber to pass the return air after air conditioning.
This is because in the case of apartment complexes, the airtightness is high, so simply undercutting the door does not provide enough return airflow, which tends to result in insufficient air conditioning capacity, and there is often no structural space to install a separate return air vent. It's for a reason. In addition, if you want to prevent noise from leaking from the next room through the return air vent, if you want to protect your privacy by firmly closing the door, or if you want to reduce the overall air conditioning load, you can use a space in the middle of the return air path. This may be done when there is no air conditioning.

In this embodiment, the air cleaning unit 840 is provided at the return air intake port 845, but if maintenance is easy, it may be provided at the return air outlet 851, the intake port 842, and the air outlet 850. , a filter box may be provided separately.

It is a relatively simple system that can create efficient air flow in multiple rooms and spaces that require air conditioning, creating comfortable individual spaces according to individual preferences, and can be used in multiple buildings. It can also be applied to air conditioning buildings such as adjacent residential areas, apartment complexes with multiple adjacent rooms, office buildings housing multiple companies, commercial facilities with multiple stores, and hospitals.

1, 2 Air conditioning system 3 Building 4 1st floor 5 2nd floor 6 Roof 7 Foundation 8 Insulating sash 9 Attic space 10 Underfloor space 15, 16 Air conditioner indoor unit 17 Entrance hall (space A)
18 Stair landing (space A)
20 Living (space B)
21 Bedroom (space B)
22 Guest room (space B)
23 Children's room (space B))
30, 31 Air conditioner outdoor unit 32 Refrigerant piping and electrical wiring 33, 34 Wall 40, 41 Air cleaning unit 42, 43 Suction port (Suction port C)
44, 45, 46, 47 Ceiling 50, 51, 52, 53 Air outlet 55, 56 Air blower 60, 61 Branch pipe 62, 63 Attic space 70, 71, 72, 73 Duct 75, 80 In-wall space 76, 77, 78, 79 Duct 85, 86, 87, 88 Return air port (return air part)
95, 96 Heat exchange unit 100, 101 Toilet 102, 103 Ventilation exhaust port 105, 106 Outdoor exhaust hood 107, 108 Exhaust duct 110, 111 Heat exchange element 115, 116 Outdoor air supply hood 117, 118 Air supply duct A
120, 121 Filter box 125, 126 Ventilation air supply port 130, 131 Air supply duct B
135, 136 Louver 140, 141 Air outlet 142, 143 Suction port 145, 146 Wind direction louver 150, 151 Suction louver 152, 153 Main body 155, 156 Pre-filter 157, 158 Power supply section 160, 161 Air cleaning suction air path 162, 163 Air Cleaning section 165, 166 Air cleaning bypass suction air passage 167, 168 Duct connection section 170 Outflow airflow 171 Suction airflow 175 Wall 176, 178 Return airflow 177 Airflow 180 Mixing section 181 Suction airflow 184 Outside airflow 185 Suction airflow 186 Exhaust airflow 190 suction Area 200, 201 Suction port (Suction port E)
202, 203 Suction louver 205, 206 Main body 210, 211 Pre-filter 212, 213 Suction part 214, 215 Air cleaning suction air passage 216, 217 Air cleaning part 220, 221 Duct suction part 222, 223 Damper 230 Suction port (Suction port D )
231 Suction louver 232 Main body 236 Duct 240 Suction airflow 301, 302 Air conditioning system 305, 306 Suction port (Suction port F)
310, 320 Air blower adapter 311, 321 Heat exchange unit adapter 315, 316, 317, 318 Blower adapter 325, 326, 327, 328 Blower adapter 330, 331 Air supply duct B
340, 341 Mixing section 342, 343 Branch section 355, 356 Blower 360, 361 Branch pipe 378 Return air flow 401 Air conditioning system 403 Ceiling 404 Ceiling chamber 405 Suction port (Suction port G)
411 Air conditioning system 412 Side wall 414 Ceiling room 415 Suction port (Suction port G)
416 Louver 417 Suction airflow 430 Outdoor unit 432 Refrigerant piping and electrical wiring 450 Heat exchanger 455 Air blower 470 Outflow airflow 495 Heat exchange unit 501 Air conditioning system 505 Suction port (Suction port H)
５０６ 吸込ガラリ ５０７ 筐体 ５４０ 空気清浄ユニット ５５５、５５６、５５７、５５８ 送風機 ５６５、５６６、５６７、５６８ 吸込口 ５７０、５７１、５７２、５７３ ダクト ５７６、５７７ 吸込気流 ５７８、５７９ 還気気流 ５８０ 混合部 ５８１ Suction airflow 601 Air conditioning system 640, 641, 642 Return air suction port (return air suction port A)
655, 656 Return air blower 670, 671, 672, 673 Duct 650, 651 Return air outlet 701 Air conditioning system 740, 741, 742 Return air suction port (return air suction port B)
755, 756 Return air blower 770, 771, 772, 773 Duct 750, 751 Return air outlet 801 Air conditioning system 803 Building 804 House 805 Balcony 807 South insulation sash 808 North insulation sash 810 Underfloor space 815 Air conditioner indoor unit 820 Living room 821 Bedroom 825 Corridor 830 Air conditioner outdoor unit 834 South wall 835 Wall 836 Floor 842 Suction port (Suction port J)
845 Return air intake port (return air intake port C)
847, 848 Ceiling 850 Air outlet 851 Return air outlet 855 Air blower 856 Return air blower 860 Chamber 862 Attic space 873, 875 Duct 874 Branch pipe 885, 885 Undercut 895 Heat exchange unit 902 Ventilation exhaust port 905 Outdoor exhaust hood 907 Exhaust duct 910 Heat exchange element 915 Outdoor air supply hood 917 Air supply duct A
920 Filter box 930 Air supply duct B

Claims (16)

An air conditioner and intake port C are installed in space A in a highly airtight and highly insulated building.
Provide an air outlet in space B,
A return air section forming a return air passage from the space B to the space A is provided between the space A and the space B,
Connecting the suction port C, the blower, and the blowout port with an air supply path,
The blower blows out the air sucked in by the suction port C from the blowout port,
The suction port C is provided below the air conditioner,
Adjusting the temperature and air volume of the airflow from the air conditioner by setting the room temperature of the space A, the operation mode, set temperature, and air volume of the air conditioner;
Adjusting the angle of the airflow from the air conditioner by setting a wind direction louver of the air conditioner;
By adjusting the amount of air blown by the blower,
An air conditioning system characterized in that the temperature of the air sucked in by the suction port C can be adjusted to within 20K when heating and within 10K when cooling with respect to the room temperature of the space A. The air conditioning system according to claim 1, wherein an electrostatic precipitator or a HEPA filter that cleans the air sucked through the suction port C is provided so as to be removable from the front of the suction port C. An air conditioner, intake ports D, and intake ports E are installed in space A in a highly airtight and highly insulated building.
Provide an air outlet in space B,
A return air section forming a return air passage from the space B to the space A is provided between the space A and the space B,
forming a supply air path by connecting the suction port D and the suction port E to the blower and the blowout port with a duct;
The blower blows out the air sucked in at the suction port D and the suction port E from the blowout port,
The suction port D is provided below the air conditioner,
The suction port E is provided above the air conditioner,
A damper is provided that can adjust the amount of the air sucked in by the suction port D and the suction port E, respectively,
Adjusting the temperature and air volume of the airflow from the air conditioner by setting the room temperature of the space A, the operation mode, set temperature, and air volume of the air conditioner;
Adjusting the angle of the airflow from the air conditioner by setting a wind direction louver of the air conditioner;
adjusting the amount of air blown by the blower;
By adjusting the amount of the air sucked at the suction port D and the suction port E by the damper,
An air conditioning system characterized in that the temperature of the air sucked in by the suction port D and the suction port E can be adjusted to within 20K during heating and within 10K during cooling with respect to the room temperature of the space A. An electrostatic precipitator or a HEPA filter that cleans the air sucked through at least one of the suction port D or the suction port E is provided so as to be removable from the front of the suction port D or the suction port E. The air conditioning system according to claim 3, characterized in that: A heat exchange unit is provided in the outdoor air introduction path connecting the outdoors and the inside of the building,
The heat exchange unit is provided in an indoor air exhaust path connecting the inside of the building and the outdoors,
Claims 1 to 4, wherein the heat exchange unit introduces outdoor air into the building while discharging indoor air to the outdoors, and exchanges heat between the indoor air and the outdoor air. The air conditioning system according to any one of the items above. The air conditioning system according to any one of claims 1 to 4, wherein one air conditioning system is provided on one floor of the building. An air conditioner and intake port F are installed in space A in a highly airtight and highly insulated building.
Provide an air outlet in space B,
A return air section forming a return air passage from the space B to the space A is provided between the space A and the space B,
Connecting the suction port F, the blower, and the blowout port with an air supply path,
The blower blows out the air sucked in by the suction port F from the blowout port,
A heat exchange unit is provided in the outdoor air introduction path connecting the outdoors and the inside of the building,
Providing the heat exchange unit of an indoor air exhaust path that connects the inside of the building and the outdoors,
The heat exchange unit introduces outdoor air into the building while discharging indoor air to the outdoors, exchanging heat between the indoor air and the outdoor air,
merging the heat-exchanged outdoor air into the supply air path;
Adjusting the temperature and air volume of the airflow from the air conditioner by setting the room temperature of the space A, the operation mode, set temperature, and air volume of the air conditioner;
Adjusting the angle of the airflow from the air conditioner by setting a wind direction louver of the air conditioner;
adjusting the amount of air blown by the blower;
By adjusting the ventilation air volume of the heat exchange unit,
An air conditioning system characterized in that the temperature of the air sucked in by the suction port F can be adjusted to within 20K when heating and within 10K when cooling with respect to the room temperature of the space A. 8. The air conditioning system according to claim 7, wherein an electrostatic precipitator or a HEPA filter that cleans the air sucked through the suction port F is provided so as to be removable from the front of the suction port F. A heat exchanger through which a refrigerant or liquid is passed is provided downstream of the heat exchange element of the heat exchange unit in the outdoor air introduction path, and the outdoor air introduced into the building is transferred to the heat exchange element and the heat exchanger. The air conditioning system according to claim 7 or 8, wherein the air conditioning system is made to pass through the air in sequence. The air conditioning system according to claim 7 or 8, wherein one of the air conditioning systems is provided on one floor of the building. An air conditioner is installed in space A in a highly airtight and highly insulated building.
A suction port G is provided in front of the air conditioner at a height equal to or lower than the installation height of the air conditioner,
Provide an air outlet in space B,
A return air section forming a return air passage from the space B to the space A is provided between the space A and the space B,
Connecting the suction port G, the blower, and the blowout port with an air supply path,
the blower blows out the air sucked in by the suction port G from the blowout port;
Adjusting the temperature and air volume of the airflow from the air conditioner by setting the room temperature of the space A, the operation mode, set temperature, and air volume of the air conditioner;
Adjusting the angle of the airflow from the air conditioner by setting a wind direction louver of the air conditioner;
By adjusting the amount of air blown by the blower,
An air conditioning system characterized in that the temperature of the air sucked in by the suction port G can be adjusted to within 20 K during heating and within 10 K during cooling with respect to the room temperature of the space A. 12. The air conditioning system according to claim 11, wherein an electrostatic precipitator or a HEPA filter that cleans the air sucked through the suction port G is provided so as to be removable from the front of the suction port G. The air conditioning system according to claim 11 or 12, wherein one of the air conditioning systems is provided on one floor of the building. An air conditioner is installed in space A in a highly airtight and highly insulated building.
A suction port H is provided above the air conditioner,
Provide an air outlet in space B,
A return air section forming a return air passage from the space B to the space A is provided between the space A and the space B,
connecting the suction port H, the blower, and the blowout port with an air supply path;
the blower blows out the air sucked in by the suction port H from the blowout port;
Adjusting the temperature and air volume of the airflow from the air conditioner by setting the room temperature of the space A, the operation mode, set temperature, and air volume of the air conditioner;
Adjusting the angle of the airflow from the air conditioner by setting a wind direction louver of the air conditioner;
By increasing the amount of air blown by the blower than the amount of air blown from the air conditioner,
An air conditioning system characterized in that the temperature of the air sucked in by the suction port H can be adjusted to within 20 K during heating and within 10 K during cooling with respect to the room temperature of the space A. 15. The air conditioning system according to claim 14, wherein an electrostatic precipitator or a HEPA filter that cleans the air sucked through the suction port H is provided so as to be removable from the front of the suction port H. 16. The air conditioning system according to claim 1, wherein a return air blower is provided in the return air passage in place of the return air section.