JP2020060329A - Air conditioner - Google Patents

Abstract

To provide an air conditioner capable of maintaining the comfort of people on the left and right sides of a room without changing the temperature of blown cold air or hot air. A left/right air direction changing vane (9) provided at an air outlet of a main body (2) and a control unit (12) for controlling the direction of the left/right air direction changing vane, and the left/right air direction changing vane (9) is divided into four blocks, upper, lower, left, and right. A control unit 12 for controlling the direction of the left and right air direction changing blades controls the air conditioning of the entire room with the upper left and right air direction changing blades 9a and 9b, and the lower left and right air direction changing blades 9c and 9b. 9d is configured to control local individual air conditioning in the room. As a result, both the air conditioning of the entire room and the individual air conditioning can be realized without changing the temperature of the cold air or the warm air blown out from the air outlet, and the comfort of the entire room can be ensured. [Selection drawing] Fig. 3

Description

  The present invention relates to a structure for separately blowing cold air or warm air in an air conditioner.

  Generally, an air conditioner is provided with a heat exchanger and a blower fan that blows out cold air or warm air that has been heat-exchanged by the heat exchanger in a main body having a suction port and an air outlet, and blows cold air or hot air from the air outlet into a room. Is designed to be air-conditioned.

  The cold air or the hot air from the air outlet is blown to the required places by the upper, lower, left, and right wind direction changing blades provided at the air outlet, but it is provided in the air outlet so that the air can be finely divided. The applicant has proposed that the left and right airflow direction changing blades are provided in two upper and lower stages, and the left and right airflow direction changing vanes can be respectively independently changed (see, for example, Patent Document 1).

  FIG. 8 shows the air conditioner of Patent Document 1 described above. In this air conditioner, left and right airflow direction changing vanes 102, 103, 104, 105 are provided at an outlet 101 of an indoor unit 100 separately in two stages, upper and lower, and left and right. It is designed so that each can turn its direction independently.

  As a result, the cold air or the hot air from the air outlet 101 can be finely blown.

JP, 2018-25343, A

  However, in the air conditioner, since the temperature of the cold air or the hot air blown from the air outlet can be changed up and down, when the air is blown to the left and right of the room, the left and right airflow direction changing blades 102 are divided into four blocks. , 103, 104 and 105 change the direction of cool air or warm air having a relatively high temperature by the left and right airflow direction changing blades 102 and 103 of the upper block, and change the direction of relatively high temperature by the left and right airflow direction changing blades 104 and 105 of the lower block. By changing the direction of low cold air or hot air, the comfort of people on the left and right of the room is maintained.

  Therefore, the air conditioner requires a complicated and expensive heat exchanger for changing the temperature of the cold air or the hot air blown out from the air outlet, which has a high cost.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an air conditioner that can maintain the comfort of people on the left and right sides of a room without changing the temperature of cold air or hot air that blows out. It was done.

  In order to achieve the above object, the present invention provides a heat exchanger and a blower fan provided in a main body, a left / right airflow direction changing blade provided at an outlet of the main body, and a control unit for controlling the direction of the left / right airflow direction changing blade. And the left and right wind direction changing vanes are provided separately in four blocks, and the control unit for controlling the direction of the left and right wind direction changing vanes is configured to air-condition the entire room with the upper left and right wind direction changing vanes. The lower right and left airflow direction changing blades control local individual air conditioning of the room.

  As a result, both the air conditioning of the entire room and the individual air conditioning can be realized without changing the temperature of the cold air or the hot air blown from the air outlet, and the comfort of the entire room can be secured.

  The present invention can provide an air conditioner that can inexpensively ensure the comfort of people on the left and right sides of a room by using the left and right wind direction changing vanes divided into four blocks, that is, upper, lower, left and right blocks.

The perspective view which shows the indoor unit of the air conditioner which concerns on Embodiment 1 of this invention. Sectional drawing of the indoor unit which concerns on the same Embodiment 1. Front view showing the indoor unit when the air outlet of the indoor unit according to the first embodiment is opened Sectional drawing which shows the indoor unit when the air outlet of the indoor unit which concerns on the same Embodiment 1 is opened. Control block diagram of the air conditioner according to the first embodiment The figure which shows the control flow of the air conditioner which concerns on the same Embodiment 1. FIG. 3 is a diagram showing a flow of blow-by control of the air conditioner according to the first embodiment. Perspective view of the indoor unit when the air outlet of the conventional air conditioner is opened

  A first aspect of the present invention includes a main body, a heat exchanger and a blower fan provided in the main body, a left / right airflow direction changing blade provided at an outlet of the main body, and a control unit for controlling the direction of the left / right airflow direction changing blade. The left and right wind direction changing vanes are provided separately in four blocks, that is, the left and right wind direction changing vanes, and the control unit for controlling the direction of the left and right wind direction changing vanes is configured to air-condition the entire room by the upper left and right wind direction changing vanes. The lower right and left airflow direction changing blades control local individual air conditioning of the room.

  As a result, both the air conditioning of the entire room and the individual air conditioning can be realized without changing the temperature of the cold air or the hot air blown from the air outlet, and the comfort of the entire room can be secured.

  According to a second aspect of the present invention, in the first aspect of the present invention, the control unit variably controls the direction of the lower left and right wind direction changing blades according to time.

  This makes it possible to achieve individual air conditioning of the room by changing the amount of cold air or warm air that is blown to the left and right of the room by a simple method of changing the direction of the lower left and right airflow direction changing blades. By changing the degree of coldness and heat on the left and right of the room while maintaining the set temperature, the comfort of the entire room can be secured at low cost.

  According to a third aspect of the present invention, in the second aspect of the present invention, the lower left / right airflow direction changing blade changes the orientation time according to the temperature difference between the left and right of the room.

  Thereby, cold air or hot air can be blown according to the temperature condition of the room, and an air conditioner with high comfort can be provided by a simple method using only the temperature condition.

  According to a fourth aspect of the present invention, in the second or third aspect of the invention, the control unit is capable of detecting a person position and an activity amount, and changing the time of the direction of the wind direction changing blade according to the person position and the activity amount. .

  As a result, cold air or warm air can be blown separately depending on the position of the person and the amount of activity, and the air conditioner can be made more comfortable.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to this embodiment.

(Embodiment 1)
The air conditioner of the first embodiment is a so-called separate type air conditioner in which an indoor unit and an outdoor unit are connected to each other by a refrigerant pipe, control wiring, and the like. A heat pump is configured by the indoor unit and the outdoor unit, and the outdoor unit is provided with a compressor. The indoor unit in the air conditioner of the first embodiment is a wall-mounted indoor unit that is attached to the wall surface in the room.

  1 is a perspective view showing an indoor unit of an air conditioner according to Embodiment 1 of the present invention, FIG. 2 is a sectional view of the indoor unit, and FIG. 3 is an indoor unit when an outlet of the indoor unit is opened. 4 is a sectional view showing the indoor unit when the air outlet of the indoor unit is opened, FIG. 5 is a control block diagram of the air conditioner, and FIG. 6 is a control flow of the air conditioner. FIG. 7 is a diagram showing a flow of the blowout control of the air conditioner.

  As shown in FIGS. 1 and 2, an indoor unit 1 of an air conditioner according to the present embodiment includes a main body 2 (hereinafter referred to as an indoor unit main body) having an opening 2a on an upper surface, and an indoor unit main body 2. The front panel 3 covers the front surface.

  As shown in FIG. 2, inside the indoor unit main body 2, a heat exchanger 4 for exchanging heat with the indoor air taken in through the opening 2a and an air for exchanging heat with the heat exchanger 4 into the room are provided. A blower fan 5 that is a wind power source is provided. The blower fan 5 is provided so as to blow air into the room through the air outlet 6 provided below the indoor unit body 2. Further, in the ventilation path 7 extending from the downstream side of the blower fan 5 of the indoor unit main body 2 to the air outlet 6, a vertical airflow direction changing blade 8 that opens and closes the air outlet 6 and changes the air blowing direction up and down. A left and right wind direction changing blade 9 that changes the blowing direction to the left and right is provided.

  Further, a filter 10 for removing dust contained in the indoor air taken in through the opening 2a is provided between the opening 2a of the indoor unit body 2 and the heat exchanger 4. The filter 10 includes a frame portion and a net portion held by the frame portion. The air conditioner according to the present embodiment includes a filter cleaning unit 11 that automatically cleans dust adhering to the mesh portion of the filter 10.

  When the air conditioner starts the air conditioning operation, the vertical airflow direction changing vane 8 is controlled to be opened, and the air outlet 6 is opened. By driving the blower fan 5 in this state, indoor air is taken into the indoor unit through the opening 2a. The indoor air taken in is heat-exchanged by the heat exchanger 4, passes through the blower fan 5, passes through the ventilation passage 7 formed on the downstream side of the blower fan 5 in the blowing direction, and is blown out from the blowout port 6. It

  Next, the vertical airflow direction changing blade 8 and the horizontal airflow direction changing blade 9 provided at the air outlet 6 will be described with reference to FIGS. 3 and 4.

  The vertical airflow direction changing vanes 8 are provided in upper, middle and lower three stages, have a length over the entire left and right sides of the air outlet 6, and also have a function of opening and closing the air outlet 6.

  Further, the left and right wind direction changing blades 9 are provided separately in four blocks on the upper, lower, left and right sides of the outlet 6. That is, as shown in FIG. 3, it is divided into four parts: a right upper left / right airflow direction changing blade 9a, a left upper left / right airflow direction changing blade 9b, a right lower left / right airflow direction changing blade 9c, and a left lower left / right airflow direction changing blade 9d. Are provided, and the direction of each can be changed independently.

  The four left / right airflow direction changing blades 9a, 9b, 9c, 9d and the three up / down airflow direction changing blades 8a, 8b, 8c are controlled in direction by a control unit 12 provided in the indoor unit body 2 on the back surface of the front panel 3. .

  FIG. 5 shows the control unit 12, which includes an air conditioning control unit 14 that drives the compressor 13 of the refrigeration cycle and controls the air conditioning operation, a temperature sensor 15, a human sensor 16, and an activity amount sensor 17. Based on the output of the above-mentioned upper left / right airflow direction changing blades 9a, 9b, lower left / right airflow direction changing blades 9c, 9d, and upper / lower three airflow direction changing blades 8a, 8b, 8c. Have

  Hereinafter, control of each of the wind direction control blades by the control unit 12 will be described.

  When the operation start of the air conditioner is instructed, first, the three vertical airflow direction changing vanes 8a, 8b, 8c are opened to open the air outlet 6 and move up and down as necessary. Then, the directions of the four right and left airflow direction changing blades 9a, 9b, 9c, 9d are controlled. The control of the four left and right wind direction changing blades 9a, 9b, 9c, 9d will be described with reference to FIGS. 6 and 7.

  The start of operation of the air conditioner is instructed, and the three vertical airflow direction changing vanes 8a, 8b, 8c are opened. As shown in step S1 and step S2 of FIG. The sensor 17 calculates and detects the amount of activity.

  Based on the person position and the amount of activity in the above steps S1 and S2, it is determined in step S3 whether there are a plurality of people existing positions, that is, whether there are a plurality of blowing areas. Complete the blasting towards.

  When there are a plurality of blown areas in step S3, it is determined in step S4 whether there is a temperature difference in each area. If there is no temperature difference, in step S6 the directions are simultaneously changed toward each area and blown. Complete.

  Further, if there is a temperature difference in each area in step S4, the upper left / right airflow direction changing blades 9a, 9b are fixed in a predetermined direction, and in step S5, the direction of the lower left / right airflow direction changing blades 9c, 9d is changed and stays. Repeat to complete the blowing. That is, the direction of the lower left and right wind direction changing blades 9c and 9d is changed to complete the blowing.

  Hereinafter, the blowing control of the four left and right airflow direction changing blades 9a, 9b, 9c, 9d in step S5 will be described with reference to FIG.

  When the blowing in step S10 is started, the upper left / right airflow direction changing blades 9a and 9b and the lower left / right airflow direction changing blades 9c and 9d are changed in direction based on the temperature of each area determined in step S4. Calculate the fixed time.

  Then, based on the calculated time, the upper left and right airflow direction changing blades 9a and 9b are fixed in step S12, and the lower left and right airflow direction changing blades 9c and 9d are directed to the direction determined based on the temperature determination result in step S4. Stop for only the time calculated in, and blow cold air or hot air in that direction. This operation is continued until the time calculated in step S11 (S13-Y).

  When the time determined in step S11 has elapsed (S13-Y), the blowing direction is changed to the direction determined based on the temperature determination result in step S4 in step S14, and the temperature determination result in step S4 is set in the same manner as step S12. Based on the direction determined based on the time and the time calculated in step S11, the cold air or the warm air is blown in that direction. This operation is continued until the time calculated in step S11 (S15-Y).

  After that, in step S16, the left and right temperatures of the room are confirmed, and while the temperature difference remains, the blowing operation of steps S11 to S16 is repeated to control the left and right temperatures of the room to the set temperature. Then, when the temperature difference between the left and right of the room reaches the set temperature (S16-Y), the blowing control is completed.

  In this way, the air conditioner of the present embodiment controls the direction of cold air or warm air by fixing the orientation of the upper left / right airflow direction changing blades 9a, 9b and changing the orientation of the lower left / right airflow direction changing blades 9c, 9d. However, at that time, the stoppage of the lower left and right wind direction changing blades 9c and 9d after the direction change is controlled by time.

  Therefore, the comfort of the entire room can be controlled by the upper left and right wind direction changing blades 9a and 9b, and the comfort of each room left and right can be managed by changing the dwell time of the lower left and right wind direction changing blades 9c and 9d. Air conditioning is possible.

  For example, the upper left and right airflow direction changing blades 9a and 9b are fixed so that cold air or warm air is blown to the entire left and right of the room, and the lower left and right airflow direction changing blades 9c and 9d are turned to the left and right of the room. By changing the dwell time, the amount of cold or hot air blown out to the left and right of the room can be changed while cooling or heating the entire room, so that one side of the room gets cold and the other side gets warm. You can

  As a result, it is possible to realize comfortable air conditioning of the same level as the conventional one in which the temperature of the cold air or the hot air itself is changed to blow the air.

  Moreover, by fixing the upper left / right airflow direction changing blades 9a, 9b and changing the time of the direction of the two lower left / right airflow direction changing blades 9c, 9d, the air conditioning of the entire room and the cold air or the hot air to be blown to the left and right of the room It is possible to realize local individual air-conditioning that changes the amount of heat, and it is possible to change the degree of cold heat on the left and right of the room while maintaining the desired temperature for the entire room. Therefore, the comfort of the entire room can be secured at low cost.

  Further, in the present embodiment, the direction of the lower left and right wind direction changing blades 9c and 9d is changed according to the temperature difference between the left and right sides of the room, so that the time of the direction of the wind direction changing blades is changed. The cool air or the hot air can be blown out separately, and the air conditioner with high comfort can be provided by a simple method only by the temperature condition.

  In addition, in the present embodiment, in addition to the above temperature control, the position of the person and the amount of activity are detected, and the time for the direction of the lower left and right wind direction changing blades 9c and 9d is changed according to the position and the amount of activity of the person. Therefore, cold air or warm air can be more accurately blown in a form in which the position of a person and the amount of activity are added, and an air conditioner with higher comfort can be provided. It should be noted that it is also possible to separately perform the blowing according to the person position and the activity amount.

  Although the air conditioner according to the present invention has been described above using the above-described embodiment, the present invention is not limited to this. For example, the present embodiment has been described by exemplifying a separate type air conditioner in which the indoor unit and the outdoor unit are separate bodies, but this is an integrated air conditioner in which the indoor unit and the outdoor unit are integrated. It is possible to have. That is, the scope of the present invention is defined by the scope of the claims, and includes meanings equivalent to the scope of the claims and all modifications within the scope.

  INDUSTRIAL APPLICABILITY As described above, according to the present invention, it is possible to inexpensively secure the comfort of a person on the left and right sides of a room by using the left and right wind direction changing vanes that are divided into upper, lower, left, and right blocks. It can be widely applied as a harmony machine.

1 Indoor unit 2 Indoor unit body (body)
2a Opening 3 Front panel 4 Heat exchanger 5 Blower fan 6 Air outlet 7 Ventilation path 8, 8a, 8b, 8c Vertical wind direction changing blade 9 Left and right wind direction changing blade 9a Upper left and right wind direction changing blade 9b Upper left and right wind direction changing blade 9c Lower side Left and right wind direction changing blade 9d Lower left and right wind direction changing blade 10 Filter 11 Filter cleaning unit 12 Control unit 13 Compressor 14 Air conditioning control unit 15 Temperature sensor 16 Human sensor 17 Activity amount sensor 18 Wind direction changing blade control unit

Claims (4)

An indoor unit main body, a heat exchanger and a blower fan provided in the indoor unit main body, a left / right airflow direction changing blade provided at a blowout port of the indoor unit main body, and a control unit for controlling the direction of the left / right airflow direction changing blade The left and right wind direction changing vanes are provided separately in four blocks, that is, the left and right wind direction changing vanes, and the control unit for controlling the direction of the left and right wind direction changing vanes is configured to air-condition the entire room by the upper left and right wind direction changing vanes. An air conditioner configured to control and locally control individual air conditioning in the room with the lower left and right wind direction changing blades. The air conditioner according to claim 1, wherein the control unit is configured to variably control the direction of the lower left and right wind direction changing blades according to time. The air conditioner according to claim 2, wherein the lower left and right wind direction changing blades are configured to change the direction time according to the temperature difference between the left and right of the room. The air conditioner according to claim 2 or 3, wherein the control unit is configured to be capable of detecting a person position and an activity amount, and changing the time of the direction of the wind direction changing blade according to the person position and the activity amount.

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