JP2008249171A - Ventilation air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve space saving and executability of construction, to improve chill immediately after the heating operation for a bathroom in winter, and to shorten the rise time. <P>SOLUTION: In this ventilating and air conditioning apparatus for performing ventilation and air-conditioning for a bathroom and a plurality of other rooms, in the case of heating the bathroom, a second opening and closing device 27 is moved by temperature of air sucked from the other chambers, and air is fed into a first heat exchanger 8 or a second heat exchanger 11. In the case of hot air, the air is fed into the first heat exchanger 8 to assist heat exchange, and another room heating air duct 28 for once blowing out the air into the bathroom, circulating the same, and discharging the same to the outside of the door is constructed, whereby chill and rise time immediately after the heating operation can be improved to improve heat efficiency. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a ventilation air conditioner that performs ventilation air conditioning of a bathroom or the like using a heat pump.

  As a ventilation air conditioner such as a bathroom using a conventional heat pump, one heat exchanger of the heat pump radiates (or absorbs heat) to air taken from outside the bathroom, and blows the air into the bathroom, There is one in which the other heat exchanger of the heat pump heats (or dissipates) heat from the air discharged from the bathroom to the outside, thereby air-conditioning the bathroom (for example, see Patent Document 1).

Also, the heat pump is separated into an outdoor unit and an indoor unit, and heat is absorbed (or radiated) from outside air in the heat exchanger provided in the outdoor unit, and heat is radiated (or absorbed) into the bathroom air in the heat exchanger provided in the indoor unit. There is also what air-conditions a bathroom by doing (for example, refer to patent documents 2).
JP 2005-180712 A JP 2002-349930 A

  As described above, various types of ventilation air conditioners such as bathrooms using heat pumps have been proposed. The bathroom air conditioner exemplified in Patent Document 1 collects heat from the air discharged from the bathroom to the outside and air-conditions the bathroom. However, it is possible to recover all the heat quantity of the discharged air in the heat exchanger. Since it is impossible, a part of the heat (cold heat) air-conditioned in the bathroom leaks to the outdoors, causing a heat loss, resulting in poor heat efficiency.

  Further, immediately after the heating operation in winter, since the heat efficiency is poor, the air blowing is felt chilly, the user feels uncomfortable, and the rise time during heating is required to be improved.

  The present invention solves the above-mentioned conventional problems, in a ventilation air conditioner in which bathroom and outdoor equipment are integrated, when ventilation and air conditioning is performed in the bathroom and other rooms, and in the winter, heating operation is performed In order to shorten the rise time by increasing the blowout temperature immediately after heating operation and to secure more heating capacity, the air is taken in warm air from other living spaces, and the bathroom is passed through the first heat exchanger. The purpose of this is to improve the thermal efficiency by providing a flow path in the air.

  In addition, the present invention provides a ventilation air conditioner for performing ventilation and air conditioning in a room such as a bathroom in winter, and when taking a heating operation, air is taken in from a dressing room or a living space through a suction port of a bathroom door. The second object is to improve the thermal efficiency by providing a suction path.

  In order to achieve the first object described above, a main body installed on the ceiling of the bathroom, a suction port for sucking air in the bathroom, a blow-out port for blowing air into the bathroom, and a bathroom from the suction port Heat exchange between the ventilation fan that sucks in the air and exhausts it to the outdoors, the circulation fan that sucks in the bathroom air from the suction port and blows it out to the outlet through the circulation air passage, and the air blown by the circulation fan and the refrigerant A first heat exchanger, a second heat exchanger for exchanging heat between the air blown by the ventilation fan and the refrigerant, a ventilation passage for discharging air from the suction port to the outdoors by the ventilation fan, and the like The other-chamber intake port A for taking in air from the chamber, the other-chamber intake port B for taking in air from other chambers, and the circulation fan for taking in air from the other chamber from the other-chamber intake port A From the air blow to the heat exchanger and the other room intake B A switchgear that takes in air from the room and switches the air flow to the second heat exchanger, and in order to raise the temperature of the air blown immediately after the heating operation in winter, the temperature of the bathroom and the temperature of air taken in from other rooms In comparison, it is characterized by controlling the switchgear. When heating a bathroom, the switchgear is moved by the temperature of the air sucked from another room, and the first heat exchanger side or The air is sent to the second heat exchanger, and in the case of warm air, the air is sent to the first heat exchanger side, so the heat exchange is assisted, once blown into the bathroom, circulated and discharged to the outside It is a thing.

  This compares the temperature of the inlet of the bathroom with the temperature of the inlet of the other room, and if the temperature of the inlet of the other room is high, the switchgear operates and blows warm air to the first heat exchanger side. be able to.

  In order to achieve the second object described above, a ventilation air conditioner for ventilating and air-conditioning a room such as a bathroom according to the present invention has a bathroom from a dressing room or a living space when heating operation is performed. In order to take in air from the air inlet of the door, the warm air in the dressing room and the living space is temporarily taken into the bathroom from the bathroom air inlet in the bathroom door, and the air is discharged outside. Is.

  By comparing the temperature of the bathroom with the temperature of the dressing room and the living space, warm air can be taken into the bathroom in the second ventilation passage if the temperature of the bathroom suction port is high.

  According to the ventilation air conditioner of the present invention, when heating operation is performed in the bathroom in the winter, warm air is drawn from living spaces such as other rooms and circulated in the bathroom, so that the chilly and rising immediately after the heating operation is performed. Time can be improved and thermal efficiency can be improved.

  In addition, by installing the switchgear in the main body, not only can the product configuration be controlled in the main body, but also the workability of the intake duct work can be improved and the space can be saved.

  Furthermore, even in a ventilation air conditioner that performs ventilation air conditioning in one room, when heating operation is performed in the bathroom in winter, the warm air is taken in from the dressing room and the living space from the bathroom door, immediately after the heating operation. It can improve chills and rise times.

  Also, by detecting the temperature of the bathroom and dressing room and living space, the moving part of the bathroom air inlet can be moved, and the amount of warm air intake from the dressing room and living space can be increased, It is possible to further improve the chills and the rise time immediately after the heating operation.

  A ventilation air conditioner according to claim 1 of the present invention includes a main body installed on a ceiling of a bathroom, a suction port for sucking in air in the bathroom, a blowout port for blowing air into the bathroom, and the suction port. A ventilation fan that sucks in the bathroom air and exhausts it to the outside, a circulation fan that sucks in the bathroom air from the suction port and blows it out to the outlet through the circulation air passage, and heats the air and refrigerant blown by the circulation fan A first heat exchanger to be exchanged, a second heat exchanger for exchanging heat between the air blown by the ventilation fan and the refrigerant, a ventilation passage for discharging air from the suction port to the outdoors by the ventilation fan, The other-chamber intake port A for taking in air from other chambers, the other-chamber intake port B for taking in air from other chambers, and the circulation fan for taking in air from other chambers through the other-chamber intake port A 1 Air blow to the heat exchanger and the other room intake B A switchgear that takes in air from another room and switches air flow to the second heat exchanger, and in order to increase the temperature of the air blown immediately after the heating operation in winter, the temperature of the bathroom and the temperature of the air taken in from the other room In order to increase the temperature of the outlet immediately after the heating operation in winter, the warm air from the other room intake air is taken into the other room heating air passage It has the effect | action which assists the thermal efficiency of a 1st heat exchanger and ventilates by ventilating not only from a circulation air path but from other room heating air paths.

  In addition, the other means is provided with an opening / closing device inside the main body, and in addition to the operation of claim 1, a thermistor for detecting the temperature of the other chamber can be installed in the main body, and is controlled within the main body. It has the effect that the structure becomes possible.

  Further, the other means are: a main body installed in the bathroom, a bathroom inlet provided in a bathroom door for taking air into the bathroom, a ventilation fan, and a ventilation passage for discharging air to the outdoors by the ventilation fan In order to raise the temperature in the bathroom immediately after the heating operation in winter, the ventilation fan is configured to take in air from the bathroom intake port. In order to raise the temperature of the bathroom immediately after the operation, the second ventilation passage by ventilation is constructed from the dressing room or the living space, and has the effect of taking in warm air.

  In addition, the other means include a bathroom temperature detecting means for detecting the temperature in the bathroom, an intake air temperature detecting means for detecting the temperature of the air taken in from the bathroom air inlet, and an amount of air taken in from the bathroom air inlet. An air amount increasing / decreasing means for comparing the temperature in the bathroom detected by the bathroom temperature detecting means with the temperature of the air taken in from the bathroom inlet detected by the intake air temperature detecting means. In order to raise the temperature of the bathroom immediately after the winter heating operation of the single room ventilation system, the temperature of the dressing room or living space is compared with the temperature of the bathroom to remove the clothes. If the temperature of the room or the living space is high, the operating means expands the bathroom inlet moving portion upward to increase the opening area, thereby taking in warmer air.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
Embodiment 1 of the present invention will be described with reference to FIG. FIG. 1 is a diagram showing the ventilation air conditioner of the first embodiment, and is a diagram showing an air passage configuration and a refrigerant circuit of the multi-room ventilation air conditioner, with the upper part being a ceiling and the lower part being a bathroom.

  In FIG. 1, a ventilation air conditioner installed on a ceiling 1 divides a main body 2 into two parts, and a circulation fan 3 is arranged in a left space and a ventilation fan 4 is arranged in a right space.

  When the circulation fan 3 in the left space is driven, a circulation air passage 7 is formed from the suction port 5 toward the outlet 6, and the first heat exchanger 8 is installed in the circulation air passage 7.

  Furthermore, when the ventilation fan 4 in the right space is driven, a first ventilation passage 10 from the suction port 5 toward the exhaust duct 9 is formed, and a second ventilation passage 10 is formed upstream of the ventilation fan 4 in the first ventilation passage 10. A heat exchanger 11 is provided. The right space is provided with a first opening / closing device 12.

  Further, for example, HCFC refrigerant (including chlorine, hydrogen, fluorine, and carbon atoms in the molecule) and HFC refrigerant (including hydrogen, carbon, and fluorine atoms in the molecule) as the refrigerant inside the main body 2. ), A refrigerant circuit 13 filled with any of natural refrigerants such as hydrocarbons and carbon dioxide is formed, and in this refrigerant circuit 13, a compressor 14 for compressing the refrigerant, supply air and the refrigerant are heated. A first heat exchanger 8 to be exchanged, an expansion mechanism 15 including an electronic expansion valve for expanding the refrigerant, and a second heat exchanger 11 for exchanging heat between the supply air and the refrigerant are provided.

  Further, in the refrigerant circuit 13, the refrigerant compressed by the compressor 14 flows in the order of the first heat exchanger 8, the expansion mechanism 15, and the second heat exchanger 11 and returns to the compressor 14 again (hereinafter referred to as heating). Cycle) and a path (hereinafter referred to as a cooling cycle) in which the refrigerant compressed in the compressor 14 flows in the order of the second heat exchanger 11, the expansion mechanism 15, and the first heat exchanger 8 and returns to the compressor 14 again. For this purpose, a flow path switching valve 16 is provided.

  Further, a decompression means 19 composed of an on-off valve 17 and a capillary tube 18 is interposed in the pipe through which the refrigerant of the first heat exchanger 8 flows. The first heat exchanger 8 is connected to the flow path switching valve 16. Is the direction shown by the solid line in the flow direction of the refrigerant, that is, after the bathroom air circulated by the circulation fan 3 exchanges heat with the refrigerant flowing downstream of the decompression means 19 of the first heat exchanger 8 when switching to the heating cycle. It is shaped to exchange heat with the refrigerant flowing upstream of the decompression means 19.

  In addition, the other-room intake port 21 for taking in air from the living space that is another room, which is a feature of the multi-room ventilation air conditioner, is exchanged with the other-room intake port A22 that blows air toward the first heat exchanger 8 side. The other-chamber intake port B23 for blowing air to the container 11 side is provided.

  The circulation fan 3 takes in air from the other room from the other room intake port A22 and blows air to the first heat exchanger 8 and takes air from the other room intake port B26 to the second heat exchanger 11. A second opening / closing device 27 is provided as a switching opening / closing device. As an opening / closing device, it is only necessary to be able to switch the air path and the air path, and there are switching dampers and the like.

  Furthermore, the other-room intake port 24 taken in from another room is provided with the other-room intake port A25 that sends air to the first heat exchanger 8 side and the other-room intake port B26 that sends air to the second heat exchanger 11 side. Moreover, in order to switch the ventilation to the 1st heat exchanger 8 and the 2nd heat exchanger 11, the 2nd switchgear 27 exists on the duct away from the main body, the temperature of the living space of another room, and the inside of a bathroom When the temperature is detected and the suction temperature of the living space of the other room is high, the second opening / closing device 27 operates so as to send air to the first heat exchanger 8 side.

  Furthermore, when the suction temperature of the bathroom is high, the second opening / closing device 27 is operated so as to send air to the second heat exchanger 11 side.

  Next, the operation during the “heating operation” will be described. “Heating operation” is an operation pattern that is selected when the bathroom is heated so that the bather can comfortably bathe without feeling cold when washing the body in the bathroom in the cold season such as winter. is there.

  Further, the ventilation fan 4 when performing the “heating operation” operates with a “strong notch” with a large air volume.

  Further, the flow path switching valve 16 is set to the “heating cycle side”, and the other components are driven in the same manner as the cooling operation to drive the compressor 14.

  In addition, by performing such an operation, the high-temperature and high-pressure refrigerant compressed by the compressor 14 is guided to the first heat exchanger 8 through the flow path switching valve 16 set on the heating cycle side.

  Furthermore, since the circulation fan 3 is operating at a predetermined notch to the first heat exchanger 8, bathroom air sucked into the main body 2 from the suction port 5 is supplied.

  In addition, since the on-off valve 17 located in the middle of the refrigerant pipe of the first heat exchanger 8 is set in an open state, the high-temperature and high-pressure refrigerant that has flowed into the first heat exchanger 8 is not subjected to the depressurizing action and is 1 The heat exchanger 8 is passed.

  Further, in this process, heat is exchanged with the bathroom air supplied to the first heat exchanger 8, and the refrigerant dissipates heat.

  Moreover, air is heated by this heat radiation, and it blows off from the blower outlet 6 to a bathroom.

  In the above configuration, immediately after the heating operation in the winter season (November to February), the circulation fan 3 is operated so that the air is sent to the first heat exchanger 8 through the circulation air passage 7 but is circulated from the bathroom. Since the air to be cooled is cold, the first heat exchanger 8 is not warmed immediately after the operation, and the air blown from the circulation fan 3 is cold air.

  Furthermore, since other living spaces are often in a warm environment because they use heating appliances, the temperature of the other-room inlet 21 and the temperature of the bathroom inlet 5 are compared immediately after the operation. When the temperature of the room intake port 21 is high, the second opening / closing device 27 is blown toward the first heat exchanger 8 so that warm air is allowed to flow into the first heat exchanger 8 in the other room heating air passage 28. By blowing air, not only the air in the suction port from the bathroom of the circulation air passage 7 but also the air in the other-room heating air passage 28 is blown to the first heat exchanger 8 to increase the thermal efficiency, thereby increasing the blowing temperature. Assist to raise.

  In addition, as a means for detecting the temperature of the other-room intake port 21 and the temperature of the bathroom suction port 5, a thermistor is used as an example, and as a means for comparison, a microcomputer or the like is used as an example.

  Furthermore, when the suction temperature of the other living space is low, the second opening / closing device 27 is blown toward the second heat exchanger 11 so that the cooled air is discharged from the exhaust duct 9 to the outside.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIG. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In FIG. 2, the second opening / closing device 27 connected to the other-chamber intake port 21 and the other-chamber intake port 24 at the top of the main body is mounted inside the main body 2.

  In the above configuration, immediately after the heating operation in the winter season (November to February), the circulation fan 3 is operated so that the air is sent to the first heat exchanger 8 through the circulation air passage 7 but is circulated from the bathroom. Since the air to be cooled is cold, the first heat exchanger 8 is not warmed immediately after the operation, and the air blown from the circulation fan 3 is cold air.

  Furthermore, since other living spaces are often in a warm environment because they use heating appliances, the temperature of the other-room inlet 21 and the temperature of the bathroom inlet 5 are compared immediately after the operation. When the temperature of the room intake port 21 is high, the second opening / closing device 27 is blown toward the first heat exchanger 8 so that warm air is allowed to flow into the first heat exchanger 8 in the other room heating air passage 28. By blowing air, not only the air in the suction port from the bathroom of the circulation air passage 7 but also the air in the other-room heating air passage 28 is blown to the first heat exchanger 8 to increase the thermal efficiency, thereby increasing the blowing temperature. Assist to raise.

  Moreover, when the suction temperature of other living space is low, the air which cooled to the outdoors comes to be discharged | emitted from the exhaust duct 9 by blowing the 2nd switchgear 27 to the 2nd heat exchanger 11 side.

  Further, since the second chamber opening / closing device 27 is provided inside the main body, the other chamber intake port 21 is integrated into one position in the main body 2, and therefore, a thermistor for detecting the suction temperature from the other chamber is installed in the main body 2. Since installation is possible and control is possible with the wiring in the main body 2, the work of duct piping by the installation work is reduced, so that workability is improved and space saving can be achieved.

(Embodiment 3)
A third embodiment of the present invention will be described with reference to FIG. The same parts as those in the first and second embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

  In FIG. 3, the main body 2 attached to the ceiling 1 of the bathroom 30 is a dressing room or living space 31 adjacent to the bathroom 30.

  In addition, a bathroom door 32 is provided as a partition between the bathroom 30 and the dressing room or the living space 31, and a bathroom air inlet 33 that is an air inlet is attached to the bathroom door 32.

  Further, when the ventilation fan 4 is operated, the air in the dressing room or the living space 31 is exhausted from the second heat exchanger 11 to the outside via the exhaust duct 9 via the bathroom air inlet 33. A second ventilation passage 34 is formed.

  In the single-chamber ventilator having the above-described configuration, the circulation fan 3 and the ventilation fan 4 operate immediately after the heating operation in the winter period, so that air is circulated from the circulation air passage 7 and the first ventilation passage 10. However, the dressing room and the living space 31 are often heated because they are operating laundry dryers or because they are living spaces. By using the second ventilation passage 34 that draws in air and exhausts warm air to the outside via the bathroom 30, it is possible to assist in raising the temperature of the bathroom 30.

  Moreover, the temperature of the bathroom 30 can be raised from the conventional heating operation of the bathroom 30 alone, and the construction of the air passage including the dressing room and the living space 31 can improve the chills immediately after the heating operation.

(Embodiment 4)
A fourth embodiment of the present invention will be described with reference to FIG. In addition, the same part as Embodiment 1-3 is attached | subjected the same code | symbol, and detailed description is abbreviate | omitted.

  In FIG. 4, the main body 2 attached to the ceiling 1 of the bathroom 30 is a dressing room or living space 31 adjacent to the bathroom 30.

  In addition, a bathroom door 32 is provided as a partition between the bathroom 30 and a dressing room or a living space 31, and a bathroom air inlet 35 that is an air inlet is attached to the bathroom door 32.

  Further, as an example of the bathroom inlet 35, a galley or the like is representative.

  In addition, a movable means 36 as an air amount increasing / decreasing means for increasing / decreasing the amount of air taken in from the bathroom inlet 35 and a bathroom inlet movable portion 37 are attached to the bathroom inlet 35. As an example, the opening / closing angle of a stepping motor or the like can be controlled.

  Further, an example of the bathroom inlet movable portion 37 is a louver fin or the like.

  In the single-chamber ventilator having the above-described configuration, the circulation fan 3 and the ventilation fan 4 operate immediately after the operation during the heating operation in winter, whereby air is circulated from the circulation air passage 7 and the first ventilation passage 10. However, since the dressing room and the living space 31 are often heated because they are operating laundry dryers or are living spaces, the temperature of the dressing room and living space 31 and the temperature of the bathroom 30 are the same. In comparison, when the dressing room and the living space 31 are high, immediately after the heating operation, the air is taken in from the bathroom air inlet 35 and the movable means 36 widens the opening of the bathroom air inlet moving portion 37. It is possible to assist in raising the temperature of the bathroom 30 by using the second ventilation passage 34 that opens more air above the ceiling surface and exhausts warm air to the outside via the bathroom 30. It becomes possible.

  Further, when the temperature of the dressing room or the living space 31 is low, the moving means 36 narrows the opening of the bathroom inlet moving part 37 so that the opening from the bathroom inlet 35 is tightened below the ceiling surface. The intake of air can be reduced and the temperature of the bathroom 30 can be prevented from decreasing.

  As described above, the ventilation air conditioner according to the present invention can save space and improve workability, and can improve the thermal efficiency by reducing leakage of air-conditioned air. The present invention can be applied not only to a ventilation air conditioner but also to a ventilation air conditioner such as a living room, a bedroom, a kitchen, or a washroom.

The figure which shows the ventilation air conditioner which concerns on Embodiment 1 of this invention. The figure which shows the ventilation air conditioner which concerns on Embodiment 2 of this invention. The figure which shows the ventilation air conditioner which concerns on Embodiment 3 of this invention. Detailed view of the bathroom air inlet of the ventilation air conditioner

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ceiling 2 Main body 3 Circulation fan 4 Ventilation fan 5 Suction port 6 Air outlet 7 Circulation air path 8 1st heat exchanger 9 Exhaust duct 10 1st ventilation path 11 2nd heat exchanger 12 1st switchgear 13 Refrigerant circuit DESCRIPTION OF SYMBOLS 14 Compressor 15 Expansion mechanism 16 Flow path switching valve 17 On-off valve 18 Capillary tube 19 Pressure reducing means 20 Intake port 21 Other chamber intake port 22 Other chamber intake port A
23 Other room intake B
24 Other room air inlet 25 Other room air inlet A
26 Other room intake B
27 Second switchgear 28 Other room heating air passage 30 Bathroom 31 Dressing room and living space 32 Bathroom door 33 Bathroom inlet 34 Second ventilation passage 35 Bathroom inlet 36 Moving means 37 Bathroom inlet moving section

Claims (4)

A main body installed on the ceiling of the bathroom, an inlet for sucking in the air in the bathroom, an outlet for blowing out air into the bathroom, a ventilation fan that sucks in the air from the inlet and exhausts it to the outside, A circulation fan that sucks in bathroom air from the suction port and blows it through the circulation air passage to the outlet; a first heat exchanger that exchanges heat between the air blown by the circulation fan and the refrigerant; and the ventilation fan A second heat exchanger for exchanging heat between the air to be blown and the refrigerant, a ventilation passage for discharging air from the suction port to the outside by the ventilation fan, and an intake port A for the other room for taking in air from another room And the other-chamber intake port B for taking in air from the other chamber, and the circulation fan takes in air from the other-chamber intake port A to the first heat exchanger and the other-chamber intake port. Air from another room is taken in from B and the second heat exchange In order to increase the blowout temperature immediately after the heating operation in winter, the second switchgear is controlled by comparing the temperature of the bathroom with the temperature of the air taken in from another room. Ventilation air conditioner characterized by that. The ventilation air conditioner according to claim 1, wherein the switchgear is provided inside the main body. It is equipped with a main body installed in the bathroom, a bathroom inlet provided in the bathroom door that takes air into the bathroom, a ventilation fan, and a ventilation passage that exhausts air to the outdoors with the ventilation fan, and heating operation in winter A ventilation air conditioner configured to take in air from the bathroom inlet by the ventilation fan in order to raise the temperature in the bathroom immediately after. A bathroom temperature detecting means for detecting the temperature in the bathroom, an intake air temperature detecting means for detecting the temperature of the air taken in from the bathroom air inlet, and an air amount increasing / decreasing means for increasing or decreasing the amount of air taken in from the bathroom air inlet. The configuration is such that the temperature in the bathroom detected by the bathroom temperature detecting means and the temperature of the air taken in from the bathroom inlet detected by the intake air temperature detecting means are compared to control the air amount increasing / decreasing means. The ventilation air-conditioning apparatus according to claim 3.

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