JP5040537B2 - Multi-room ventilation air conditioner - Google Patents

Description

  The present invention relates to a multi-room ventilation air conditioner that performs ventilation and air conditioning in a bathroom and a dressing room using a heat pump.

As a ventilation air conditioner for bathrooms and dressing rooms using conventional heat pumps, one heat exchanger of the heat pump dissipates (or absorbs) heat from the air taken from the dressing room through a duct, There are those that blow out to the dressing room in the bathroom and through the duct, and the other heat exchanger of the heat pump absorbs heat (or dissipates heat) to the air discharged from the bathroom to the outside, thereby air-conditioning the bathroom and the dressing room (For example, refer to Patent Document 1).
Japanese Patent Laying-Open No. 2005-180712 (page 10, FIG. 7)

  In such a conventional multi-room ventilation air conditioner, in addition to a duct for taking air into the main body from the dressing room in order to perform air conditioning in the bathroom and the dressing room, the air conditioned in the main body is blown out to the dressing room. Since it is necessary to provide a separate duct, there is a problem that a space for providing a plurality of ducts is required and the workability is deteriorated.

  The present invention solves such a conventional problem, and it is possible to switch between the air conditioning in the bathroom and the dressing room simply by communicating the dressing room and the main body with a single duct, improving the workability and the duct. An object of the present invention is to provide a multi-room ventilation air conditioner that can realize space saving.

In order to achieve the above object, the multi-room ventilation air conditioner of the present invention has a compressor for compressing refrigerant and a refrigerant for supplying air in a main body arranged on the ceiling surface of the bathroom adjacent to the dressing room. A refrigerant circuit in which a radiator that radiates heat, a decompression mechanism that expands and decompresses refrigerant, a heat absorber that absorbs heat from the supply air by piping, and a circulation fan that sucks air from the bathroom and supplies it to the bathroom or the dressing room And an exhaust fan that sucks air from the bathroom or the dressing room and discharges it to the outside, and a connection duct that communicates the main body and the dressing room, and an exhaust duct that communicates the main body and the outdoors. A multi-chamber ventilation air conditioner installed, wherein the air in the dressing room is taken into the main body through the connection duct by the exhaust fan, supplied to the heat absorber, and cooled by heat absorption of the refrigerant A form of bathroom heating operation that discharges to the outside through the exhaust duct and supplies the air in the bathroom into the main body by the circulation fan, supplies the heat to the radiator, and then supplies the air to the bathroom after being heated by heat dissipation from the refrigerant. The air in the bathroom is taken into the main body by the exhaust fan, supplied to the heat absorber, cooled by the heat absorption of the refrigerant, and then discharged to the outside through the exhaust duct, and the air in the bathroom is exhausted to the main body by the circulation fan. It is configured so that it can be switched between a dressing room heating operation mode in which it is taken in and supplied to the radiator and heated by heat radiation of the refrigerant and then supplied to the dressing room through the connection duct.

In addition, the second problem-solving means is provided in the main body disposed on the ceiling surface of the bathroom adjacent to the dressing room.
A compressor that compresses the refrigerant; a radiator that radiates the refrigerant to the supply air; a decompression mechanism that expands and decompresses the refrigerant; a refrigerant circuit that pipes a heat absorber that absorbs heat from the supply air; and air from the bathroom A connection duct that includes a circulation fan that sucks air into the bathroom or the dressing room and an exhaust fan that sucks air from the bathroom or the dressing room and discharges the air to the outside, and communicates the main body with the dressing room And a multi-chamber ventilation air conditioner in which an exhaust duct that communicates between the main body and the outside is disposed, and the air from the dressing room is taken into the main body through the connection duct by the exhaust fan and is supplied to the radiator. After being supplied and heated by heat dissipation of the refrigerant, it is discharged to the outside through the exhaust duct, and the air in the bathroom is taken into the main body by the circulation fan Cooling operation by supplying heat to the heat absorber and cooling to the bathroom after absorbing heat, and cooling the refrigerant by supplying air into the main body by the exhaust fan and supplying the air to the radiator. After being heated by the air, the air is exhausted to the outside through the exhaust duct, and the air in the bathroom is taken into the main body by the circulation fan, supplied to the heat absorber, cooled by the heat absorbed by the refrigerant, and then returned to the dressing room through the connection duct. It is configured to be switchable between the form of the dressing room cooling operation to be supplied.

The third problem-solving means is that a compressor for compressing the refrigerant, a radiator for radiating the refrigerant to the supply air, and the refrigerant are expanded in the main body disposed on the ceiling surface of the bathroom adjacent to the dressing room. A decompression mechanism for decompressing the refrigerant, a refrigerant circuit piped to a heat absorber that absorbs heat from the supply air, a circulation fan that sucks air from the bathroom and supplies the air to the bathroom or the dressing room, and the main body and the A multi-room ventilation air conditioner provided with a connecting duct communicating with a dressing room, wherein the air in the bathroom is taken into the main body by the circulation fan and supplied to the heat absorber, and the cooling is reduced by heat absorption of the refrigerant. A bathroom dehumidifying operation mode in which the air is supplied to the radiator after being moistened, heated by heat radiation from the refrigerant and supplied to the bathroom, and the air in the bathroom is taken into the main body by the circulation fan and supplied to the heat absorber. And is said that by heating the heat radiation is supplied to the radiator coolant constitutes a form of dressing room dehumidifying operation supplied to the changing room through the connecting ducts can be switched after dampening down cooled by the heat absorption of the refrigerant.

The fourth problem solving means is that a compressor for compressing the refrigerant, a radiator for radiating the refrigerant to the supply air, and the refrigerant are expanded in the main body disposed on the ceiling surface of the bathroom adjacent to the dressing room. A refrigerant circuit in which a depressurization mechanism for depressurization and a first heat absorber and a second heat absorber that absorb heat from the supply air are connected by piping, and a circulation fan that sucks air from the bathroom and supplies the air to the bathroom or the dressing room And an exhaust fan that sucks air from the bathroom or the dressing room and discharges it to the outside, and a connection duct that communicates the main body and the dressing room, and an exhaust duct that communicates the main body and the outdoors. A multi-chamber ventilation air conditioner installed, after the air from the dressing room is taken into the main body through the connection duct by the exhaust fan, supplied to the second heat absorber, and cooled by heat absorption of the refrigerant The air is exhausted to the outside through the exhaust duct, and the air in the bathroom is taken into the main body by the circulation fan, supplied to the first heat absorber, cooled and dehumidified by the heat absorption of the refrigerant, and then supplied to the radiator to supply the refrigerant. The form of the bathroom dehumidifying and drying operation which is heated by heat radiation and supplied to the bathroom, and the air in the bathroom is taken into the main body by the exhaust fan and supplied to the second heat absorber and cooled by the heat absorption of the refrigerant. The air is exhausted to the outside through an exhaust duct, and the air in the bathroom is taken into the main body by the circulation fan, supplied to the first heat sink, cooled and dehumidified by the heat absorbed by the refrigerant, and then supplied to the radiator to dissipate the refrigerant. It is configured to be able to switch between the form of the dressing room dehumidifying and drying operation that is heated by the above and supplied to the dressing room through the connection duct.

  The sixth problem solving means is that the air in the bathroom is taken into the main body by the exhaust fan, supplied to the heat absorber, cooled by the heat absorption of the refrigerant, and then discharged to the outside through the exhaust duct, and the air in the bathroom by the circulation fan. In the main body, supplied to the radiator, heated by the heat radiation of the refrigerant, and then returned to the bathroom, the form of bathroom drying operation can be further switched.

According to the first aspect of the present invention, the air in the dressing room is taken into the main body through the connection duct by the exhaust fan, supplied to the heat absorber, cooled by the heat absorbed by the refrigerant, and then discharged outside through the exhaust duct and circulated. The air in the bathroom is taken into the main body by a fan, supplied to the radiator, heated by the heat radiation of the refrigerant, and then supplied to the bathroom, and the air in the bathroom is taken into the main body by the exhaust fan and supplied to the heat absorber. After cooling by the heat absorbed by the refrigerant, it is discharged to the outside through the exhaust duct, and the air in the bathroom is taken into the main body by the circulation fan, supplied to the radiator, heated by the heat released from the refrigerant, and then supplied to the dressing room through the connection duct The bathroom can be heated in a simple configuration in which the main body and the dressing room are connected only by a single connection duct. Heating the changing area to be switched, it is possible to provide a multi-room ventilating air-conditioning system that can achieve space saving improvement in workability and the duct.

According to the second aspect of the present invention, the air in the dressing room is taken into the main body through the connection duct by the exhaust fan, supplied to the radiator, heated by the heat radiation of the refrigerant, and then discharged outside through the exhaust duct and the circulation fan. The air in the bathroom is taken into the main body, supplied to the heat absorber, cooled by the heat absorbed by the refrigerant, and supplied to the bathroom, and the air in the bathroom is taken into the main body by the exhaust fan and supplied to the radiator. After being heated by heat radiation, the air is discharged to the outside through the exhaust duct, and the air in the bathroom is taken into the main body by the circulation fan, supplied to the heat absorber, cooled by the heat absorbed by the refrigerant, and then supplied to the dressing room through the connection duct. By being configured to be switchable, it is possible to cool the bathroom in a simple configuration in which the main body and the dressing room are connected only by a single connection duct. Cooling of Koromosho to be switched, it is possible to provide a multi-room ventilating air-conditioning system that can achieve space saving improvement in workability and the duct.

According to the invention described in claim 3 , the air in the bathroom is taken into the main body by the circulation fan, supplied to the heat absorber, cooled and dehumidified by the heat absorbed by the refrigerant, supplied to the radiator, and heated by the heat released from the refrigerant. The operation form to be supplied to the bathroom, and the air in the bathroom is taken into the main body by the circulation fan, supplied to the heat absorber, cooled and dehumidified by the heat absorbed by the refrigerant, then supplied to the radiator and heated by the heat released from the refrigerant, and the connection duct It is possible to switch between dehumidification in the bathroom and dehumidification in a simple configuration in which the main body and the dressing room are connected by a single connection duct. It is possible to provide a multi-room ventilation air conditioner that can improve the efficiency and reduce the space of the duct.

According to the invention described in claim 4, the air in the dressing room is taken into the main body through the connection duct by the exhaust fan, supplied to the second heat absorber, cooled by the heat absorbed by the refrigerant, and then discharged to the outside through the exhaust duct. An operation mode in which the air in the bathroom is taken into the main body by the circulation fan, supplied to the first heat absorber, cooled and dehumidified by the heat absorption of the refrigerant, supplied to the radiator, heated by the heat radiation of the refrigerant, and supplied to the bathroom, and exhaust The air in the bathroom is taken into the main body by the fan, supplied to the second heat absorber, cooled by the heat absorbed by the refrigerant, and then discharged to the outside through the exhaust duct, and the air in the bathroom is taken into the main body by the circulation fan and the first heat absorption The operation mode is switched to supply to the dresser, cool and dehumidify by absorbing the heat of the refrigerant, then supply to the radiator, heat by radiating the refrigerant, and supply to the dressing room through the connection duct With this configuration, it is possible to switch between dehumidifying drying in the bathroom and dehumidifying drying in the dressing room with a simple configuration in which the main body and the dressing room are connected only by a single connection duct, improving workability and saving space in the duct. Can be provided.

According to the invention described in claim 5 , the air in the bathroom is taken into the main body by the exhaust fan, supplied to the heat absorber, cooled by the heat absorbed by the refrigerant, and then discharged to the outside through the exhaust duct. In the main body and the dressing room, only a single connection duct can be used. Thus, it is possible to provide a multi-room type ventilation air conditioner having an effect of realizing a high-efficiency drying operation with a simple configuration that is connected with the above.

According to the first aspect of the present invention, the air in the dressing room is taken into the main body through the connection duct by the exhaust fan, supplied to the heat absorber, cooled by the heat absorbed by the refrigerant, and then discharged outside through the exhaust duct and circulated. The air in the bathroom is taken into the main body by a fan, supplied to the radiator, heated by the heat radiation of the refrigerant, and then supplied to the bathroom, and the air in the bathroom is taken into the main body by the exhaust fan and supplied to the heat absorber. After cooling by the heat absorbed by the refrigerant, it is discharged to the outside through the exhaust duct, and the air in the bathroom is taken into the main body by the circulation fan, supplied to the radiator, heated by the heat released from the refrigerant, and then supplied to the dressing room through the connection duct The bathroom can be heated in a simple configuration in which the main body and the dressing room are connected only by a single connection duct. Heating the dressing room to allow switching, an effect that it is possible to realize space saving improvement in workability and the duct.

According to the second aspect of the present invention, the air in the dressing room is taken into the main body through the connection duct by the exhaust fan, supplied to the radiator, heated by the heat radiation of the refrigerant, and then discharged to the outside through the exhaust duct and the bathroom by the circulation fan. The internal air is taken into the main body, supplied to the heat absorber, cooled by the heat absorbed by the refrigerant, and then supplied to the bathroom, and the exhaust air is taken into the main body by the exhaust fan and supplied to the radiator to dissipate the refrigerant. It is possible to switch the operation mode to be discharged to the outside through the exhaust duct after being heated by the air and to be supplied to the dressing room through the connection duct after taking in the air in the bathroom by the circulation fan and supplying it to the heat absorber and cooling by the heat absorption of the refrigerant By configuring the main body and the dressing room with a simple connection duct, the bathroom cooling and dressing room Cooling the switchable, an effect that it is possible to realize space saving improvement in workability and the duct.

According to a third aspect of the present invention, the air in the bathroom is taken into the main body by the circulation fan, supplied to the heat absorber, cooled and dehumidified by the heat absorbed by the refrigerant, and then supplied to the radiator and heated by the heat released from the refrigerant. The operation mode to be supplied to the air and the air in the bathroom is taken into the main body by the circulation fan, supplied to the heat absorber, cooled and dehumidified by the heat absorbed by the refrigerant, supplied to the heat radiator, heated by the heat released from the refrigerant, and undressed through the connection duct By switching the operation mode to be supplied to the place, it is possible to switch between dehumidification in the bathroom and dehumidification place in a simple configuration in which the main body and the dressing room are connected only by a single connection duct, improving workability And it has the effect that space saving of the duct can be realized.

According to a fourth aspect of the present invention, the air in the dressing room is taken into the main body through the connection duct by the exhaust fan, supplied to the second heat absorber, cooled by the heat absorbed by the refrigerant, and then discharged outside through the exhaust duct and the circulation fan. By taking the air in the bathroom into the main body, supplying it to the first heat absorber, cooling and dehumidifying by absorbing the heat of the refrigerant, supplying it to the radiator, heating it by radiating the refrigerant and supplying it to the bathroom, and an exhaust fan The air in the bathroom is taken into the main body, supplied to the second heat absorber, cooled by the heat absorbed by the refrigerant, and then discharged to the outside through the exhaust duct, and the air in the bathroom is taken into the main body by the circulation fan and becomes the first heat absorber. Switchable operation mode to be supplied and cooled and dehumidified by heat absorption of refrigerant, then supplied to radiator and heated by heat dissipation of refrigerant and supplied to dressing room through connection duct As a result, it is possible to switch between dehumidifying drying in the bathroom and dehumidifying drying in the dressing room with a simple configuration in which the main body and the dressing room are connected only by a single connection duct, improving workability and saving space in the duct. It has the effect of being able to.

Further, according to the fifth aspect of the present invention, the air in the bathroom is taken into the main body by the exhaust fan, supplied to the heat absorber, cooled by the heat absorption of the refrigerant, and then discharged to the outside through the exhaust duct, and the air in the bathroom by the circulation fan. Is connected to the dressing room with a single connection duct by further switching the mode of bathroom drying operation that is supplied to the bathroom after being heated by the heat radiation of the refrigerant. With this simple configuration, it is possible to realize a highly efficient drying operation.

(Embodiment 1)
Hereinafter, Embodiment 1 of the present invention will be described with reference to FIGS. FIG. 1 is a diagram illustrating an installation state of a multi-room ventilation air conditioner according to Embodiment 1 of the present invention. The main body 1 of the multi-room ventilation air conditioner is installed on the ceiling surface of the bathroom 2, and a suction port 3 and an outlet 4 are opened on the lower surface of the main body 1 so as to communicate with the inside of the bathroom 2. . Further, a dressing room 5 is provided adjacent to the bathroom 2, and a door 7 having a louver 6 opened on a wall surface that partitions the bathroom 2 and the dressing room 5. A ventilation opening 8 is opened on the ceiling surface of the dressing room 5, and the ventilation opening 8 and the main body 1 are connected by a connection duct 9. An exhaust duct 10 is connected to the side surface of the main body 1 and the other end of the exhaust duct 10 is open to the outdoors. Therefore, the main body 1 is configured to communicate with the dressing room 5 via the connection duct 9 and communicate with the outdoors via the exhaust duct 10.

  FIG. 2 is an air passage configuration diagram and a refrigerant circuit diagram of a multi-room ventilation air conditioner, and as shown in the figure, a main body 1 to which a connection duct 9 communicating with a dressing room 5 and an exhaust duct 10 communicating with the outdoors are connected. Inside, a compressor 11 that compresses the refrigerant, a fin tube type first heat exchanger 12 that exchanges heat between the supply air and the refrigerant, a second heat exchanger 13, a third heat exchanger 14, and a capillary that decompresses and expands the refrigerant A refrigerant circuit 16 is provided in which a decompression mechanism 15 made of a tube is connected by piping. Examples of the refrigerant filled in the refrigerant circuit 16 include an HCFC refrigerant (including chlorine, hydrogen, fluorine, and carbon atoms in the molecule) and an HFC refrigerant (hydrogen, carbon, and fluorine atoms in the molecule). Natural refrigerants such as hydrocarbons and carbon dioxide can be used.

  In the refrigerant circuit 16, the refrigerant discharged from the compressor 11 flows in the order of the first heat exchanger 12, the second heat exchanger 13, the decompression mechanism 15, and the third heat exchanger 14, and again flows into the compressor 11. The return path (hereinafter referred to as a heating cycle) and the refrigerant discharged from the compressor 11 are flowed in the order of the third heat exchanger 14, the pressure reducing mechanism 15, the second heat exchanger 13, and the first heat exchanger 12, and the compressor again. A flow path switching valve 17 is provided to switch the path to return to 11 (hereinafter referred to as a cooling cycle). In addition, a capillary tube 18 that decompresses and expands the refrigerant and an on-off valve 19 for bypassing the capillary tube 18 are provided in parallel in a path connecting the first heat exchanger 12 and the second heat exchanger 13.

  Also, in the main body 1, the air in the bathroom 2 is sucked from the suction port 3 and supplied to the second heat exchanger 13 and the first heat exchanger 12 in this order, and the third heat exchanger 14 is supplied with air. An exhaust fan 21 that is supplied and discharged to the outside through the exhaust duct 10 is disposed. Further, in the main body 1, a first damper 22 for communicating the blowout side of the circulation fan 20 to either the blowout port 4 or the connection duct 9, and the suction side of the exhaust fan 21 are connected to the suction port 3 or the connection duct 9. A second damper 23 is provided for communicating with either one.

  Therefore, when the first damper 22 is set at a position where the outlet side of the circulation fan 20 communicates with the outlet 4, the air sucked into the main body 1 from the inlet 3 by the circulation fan 20 is the second heat exchanger 13, the first heat exchange. If the first damper 22 is set at a position where the blower side of the circulation fan 20 communicates with the connection duct 9 after passing through the vessel 12 in order, the suction port is provided by the circulation fan 20. The air sucked into the main body 1 from 3 passes through the second heat exchanger 13 and the first heat exchanger 12 in this order, and then is supplied to the dressing room 5 through the connection duct 9.

  Further, when the second damper 23 is set at a position where the suction side of the exhaust fan 21 communicates with the suction port 3, the air in the bathroom 2 is sucked into the main body 1 from the suction port 3 by the exhaust fan 21 and the third heat exchanger 14 is connected. When the second damper 23 is set at a position where the suction side of the exhaust fan 21 communicates with the connection duct 9 after passing, the dressing room 5 is passed through the connection duct 9 by the exhaust fan 21. After being sucked into the main body 1 and passing through the third heat exchanger 14, it is discharged from the exhaust duct 10 to the outside.

  Next, the operation of the multi-room ventilation air conditioner will be described. FIG. 3 is an operation explanatory diagram for explaining the operation of the bathroom heating operation and the dressing room heating operation. FIG. 3 (a) shows the operation during the bathroom heating operation, and FIG. 3 (b) shows the operation during the dressing room heating operation. Is shown. First, when the bathroom heating operation is performed, as shown in FIG. 3A, the flow path switching valve 17 is on the heating cycle side, the on-off valve 19 is in the open state, and the first damper 22 is on the outlet side of the circulation fan 20. The second damper 23 is set to a position where the suction side of the exhaust fan 21 communicates with the connection duct 9.

  When the compressor 11, the circulation fan 20, and the exhaust fan 21 are each operated in such a state, the high-temperature and high-pressure refrigerant compressed by the compressor 11 passes through the flow path switching valve 17 set on the heating cycle side, After flowing into one heat exchanger 12, it flows into the second heat exchanger 13 through the on-off valve 19 set to an open state without being subjected to a pressure reducing action. The air in the bathroom 2 is supplied to the first heat exchanger 12 and the second heat exchanger 13 through the suction port 3 by the operation of the circulation fan 20, and the high-temperature and high-pressure refrigerant dissipates heat to the supply air and supplies the air. Is heated. The heated supply air is led to the outlet 4 side which is the opening direction of the first damper 22 and is supplied into the bathroom 2 from the outlet 4. On the other hand, the refrigerant that has dissipated heat in the first heat exchanger 12 and the second heat exchanger 13 flows into the decompression mechanism 15, expands under reduced pressure, becomes a low temperature and a low pressure, and flows into the third heat exchanger 14. The air in the dressing room 5 is supplied to the third heat exchanger 14 through the connection duct 9 in the opening direction of the second damper 23 by the operation of the exhaust fan 21, and the refrigerant absorbs heat from the supplied air. The refrigerant that has absorbed heat in the third heat exchanger 14 returns to the compressor 11 through the flow path switching valve 17 and circulates in the refrigerant circuit 16. On the other hand, the air absorbed by the refrigerant in the third heat exchanger 14 is discharged from the exhaust duct 10 to the outside.

  Thus, in the bathroom heating operation, the refrigerant absorbs heat from the supply air in the third heat exchanger 14, and the refrigerant dissipates heat to the supply air in the first heat exchanger 12 and the second heat exchanger 13, and this heat dissipation The interior of the bathroom 2 is heated by supplying heated high-temperature air to the bathroom 2. In this bathroom heating operation, the first heat exchanger 12 and the second heat exchanger 13 are supplied with a refrigerant with respect to the supplied air. The radiator 24 that radiates heat and the third heat exchanger 14 become the heat absorber 25 that absorbs heat from the supply air.

  Next, the dressing room heating operation will be described. When performing this dressing room heating operation, as shown in FIG. 3B, the flow path switching valve 17 is on the heating cycle side, the on-off valve 19 is in the open state, and the first damper 22 is on the outlet side of the circulation fan 20 as a connecting duct. 9 and the second damper 23 is set to a position where the suction side of the exhaust fan 21 communicates with the suction port 4.

  When the compressor 11, the circulation fan 20, and the exhaust fan 21 are each operated in such a state, the high-temperature and high-pressure refrigerant compressed by the compressor 11 passes through the flow path switching valve 17 set on the heating cycle side, After flowing into one heat exchanger 12, it flows into the second heat exchanger 13 through the on-off valve 19 set to an open state without being subjected to a pressure reducing action. The air in the bathroom 2 is supplied to the first heat exchanger 12 and the second heat exchanger 13 through the suction port 3 by the operation of the circulation fan 20, and the high-temperature and high-pressure refrigerant dissipates heat to the supply air and supplies the air. Is heated. The heated supply air is guided to the connection duct 9 side, which is the opening direction of the first damper 22, and is supplied into the dressing room 5 from a ventilation port 8 (not shown). On the other hand, the refrigerant that has dissipated heat in the first heat exchanger 12 and the second heat exchanger 13 flows into the decompression mechanism 15, expands under reduced pressure, becomes a low temperature and a low pressure, and flows into the third heat exchanger 14. The air in the bathroom 2 is supplied to the third heat exchanger 14 through the suction port 3 in the opening direction of the second damper 23 by the operation of the exhaust fan 21, and the refrigerant absorbs heat from the supplied air. The refrigerant that has absorbed heat in the third heat exchanger 14 returns to the compressor 11 through the flow path switching valve 17 and circulates in the refrigerant circuit 16. On the other hand, the air absorbed by the refrigerant in the third heat exchanger 14 is discharged from the exhaust duct 10 to the outside.

  Thus, in the dressing room heating operation, the refrigerant absorbs heat from the supply air in the third heat exchanger 14, and the refrigerant dissipates heat to the supply air in the first heat exchanger 12 and the second heat exchanger 13, and this heat dissipation. The inside of the dressing room 5 is heated by supplying the high-temperature air heated by the dressing room 5, and in this dressing room heating operation, the first heat exchanger 12 and the second heat exchanger 13 are supplied to the supply air. On the other hand, the radiator 24 that radiates the refrigerant and the third heat exchanger 14 become the heat absorber 25 that absorbs the refrigerant from the supply air.

  And in the said structure, in the simple structure which connects the main body 1 installed in the ceiling surface of the bathroom 2 and the dressing room 5 with the single connection duct 9 as mentioned above, switching of the 1st damper 22 and the 2nd damper 23 is carried out. Switching between the bathroom heating operation shown in FIG. 3 (a) and the dressing room heating operation shown in FIG. 3 (b) is possible only by operation, and space saving and improvement in workability are achieved by reducing the number of connecting ducts. Can do.

  4A and 4B are operation explanatory views for explaining the operation of the bathroom cooling operation and the dressing room cooling operation. FIG. 4A is an operation during the bathroom cooling operation, and FIG. 4B is an operation during the dressing room cooling operation. Is shown. First, when the bathroom cooling operation is executed, as shown in FIG. 4A, the flow path switching valve 17 is on the cooling cycle side, the on-off valve 19 is in the open state, and the first damper 22 is on the outlet side of the circulation fan 20 at the outlet 4. The second damper 23 is set to a position where the suction side of the exhaust fan 21 communicates with the connection duct 9.

  When the compressor 11, the circulation fan 20, and the exhaust fan 21 are each operated in such a state, the high-temperature and high-pressure refrigerant compressed by the compressor 11 passes through the flow path switching valve 17 set on the cooling cycle side, It flows into the three heat exchanger 14. The air in the dressing room 5 is supplied to the third heat exchanger 14 through the connection duct 9 in the opening direction of the second damper 23 by the operation of the exhaust fan 21, and the refrigerant dissipates heat to the supplied air. In the third heat exchanger 14, the air in the dressing room 5 that has become high temperature due to the heat radiation of the refrigerant is discharged to the outside through the exhaust duct 10. On the other hand, the refrigerant radiated by the third heat exchanger 14 flows into the decompression mechanism 15, decompresses and expands, becomes low temperature and low pressure, and flows into the second heat exchanger 13. The refrigerant that has flowed into the second heat exchanger 13 flows into the first heat exchanger 12 through the on-off valve 19 that is set to an open state without being subjected to a pressure reducing action. The air in the bathroom 2 is supplied to the second heat exchanger 13 and the first heat exchanger 12 through the suction port 3 by the operation of the circulation fan 20, and the low-temperature and low-pressure refrigerant absorbs heat from the supply air to cool the supply air. Is done. The cooled supply air is guided to the outlet 4 side which is the opening direction of the first damper 22 and is supplied into the bathroom 2 from the outlet 4. On the other hand, the refrigerant that has absorbed heat by the first heat exchanger 12 returns to the compressor 11 through the flow path switching valve 17 and circulates through the refrigerant circuit 16.

  As described above, in the bathroom cooling operation, the refrigerant radiates heat to the supply air in the third heat exchanger 14 and the refrigerant absorbs heat from the supply air in the second heat exchanger 13 and the first heat exchanger 12. By supplying cooled low temperature air to the bathroom 2, the inside of the bathroom 2 is cooled, and in this bathroom cooling operation, the third heat exchanger 14 radiates the heat to the supplied air by the radiator 24, the second radiator 24, and the like. The two heat exchanger 13 and the first heat exchanger 12 become the heat absorber 25 in which the refrigerant absorbs heat from the supply air.

  Next, the dressing room cooling operation will be described. When performing the dressing room cooling operation, as shown in FIG. 4 (b), the flow path switching valve 17 is on the cooling cycle side, the on-off valve 19 is in the open state, and the first damper 22 is connected to the outlet side of the circulation fan 20. 9 and the second damper 23 is set to a position where the suction side of the exhaust fan 21 communicates with the suction port 4.

  When the compressor 11, the circulation fan 20, and the exhaust fan 21 are each operated in such a state, the high-temperature and high-pressure refrigerant compressed by the compressor 11 passes through the flow path switching valve 17 set on the cooling cycle side, It flows into the three heat exchanger 14. The air in the bathroom 2 is supplied to the third heat exchanger 14 through the suction port 3 in the opening direction of the second damper 23 by the operation of the exhaust fan 21, and the refrigerant radiates heat to the supplied air. In the third heat exchanger 14, the air in the bathroom 2 that has become hot due to the heat radiation of the refrigerant is discharged to the outside through the exhaust duct 10. On the other hand, the refrigerant radiated by the third heat exchanger 14 flows into the decompression mechanism 15, decompresses and expands, becomes low temperature and low pressure, and flows into the second heat exchanger 13. The refrigerant that has flowed into the second heat exchanger 13 flows into the first heat exchanger 12 through the on-off valve 19 that is set to an open state without being subjected to a pressure reducing action. The air in the bathroom 2 is supplied to the second heat exchanger 13 and the first heat exchanger 12 through the suction port 3 by the operation of the circulation fan 20, and the low-temperature and low-pressure refrigerant absorbs heat from the supply air to cool the supply air. . The cooled supply air is guided to the connection duct 9 side, which is the opening direction of the first damper 22, and is supplied into the dressing room 5 from the vent hole 8 (not shown). On the other hand, the refrigerant that has absorbed heat by the first heat exchanger 12 returns to the compressor 11 through the flow path switching valve 17 and circulates through the refrigerant circuit 16.

  Thus, in the dressing room cooling operation, the refrigerant radiates heat to the supply air in the third heat exchanger 14, and the refrigerant absorbs heat from the supply air in the second heat exchanger 13 and the first heat exchanger 12, and this heat absorption. The inside of the dressing room 5 is cooled by supplying the low temperature air cooled by the heat to the dressing room 5, and in this dressing room cooling operation, the third heat exchanger 14 dissipates heat to the supply air. The cooler 24, the second heat exchanger 13, and the first heat exchanger 12 serve as the heat absorber 25 in which the refrigerant absorbs heat from the supply air.

  And in the said structure, in the simple structure which connects the main body 1 installed in the ceiling surface of the bathroom 2 and the dressing room 5 with the single connection duct 9 as mentioned above, switching of the 1st damper 22 and the 2nd damper 23 is carried out. Switching between the bathroom cooling operation shown in FIG. 4 (a) and the dressing room cooling operation shown in FIG. 4 (b) is possible only by the operation, and space saving and improvement in workability are achieved by reducing the number of connecting ducts. Can do.

  FIG. 5 is an operation explanatory diagram for explaining the operation of the bathroom dehumidifying operation and the dressing room dehumidifying operation. FIG. 5 (a) shows the operation during the bathroom dehumidifying operation, and FIG. 5 (b) shows the operation during the dressing room dehumidifying operation. Is shown. First, when the bathroom dehumidifying operation is executed, as shown in FIG. 5A, the flow path switching valve 17 is on the heating cycle side, the on-off valve 19 is closed, and the first damper 22 is on the outlet side of the circulation fan 20 at the outlet 4. The second damper 23 is set to a position where the suction side of the exhaust fan 21 communicates with the connection duct 9.

  When the compressor 11 and the circulation fan 20 are operated in such a state, the high-temperature and high-pressure refrigerant compressed by the compressor 11 passes through the flow path switching valve 17 set on the heating cycle side and passes through the first heat exchanger 12. Then, since the on-off valve 19 is set in a closed state, it flows into the capillary tube 18. In the capillary tube 18, the refrigerant expands under reduced pressure, becomes a low temperature and low pressure, and flows into the second heat exchanger 13. The air in the bathroom 2 is supplied to the second heat exchanger 13 through the suction port 3 by the operation of the circulation fan 20, and the low-temperature and low-pressure refrigerant absorbs heat from the supply air, whereby the supply air is cooled and dehumidified. The cooled and dehumidified supply air is supplied to the first heat exchanger 12 located downstream, and the high-temperature and high-pressure refrigerant described above radiates heat to the supply air, so that the supply air is heated. Thus, after cooling and dehumidifying in the second heat exchanger 13, the supply air heated in the first heat exchanger 12 is guided to the outlet 4 side which is the opening direction of the first damper 22 and is blown out. 4 is supplied into the bathroom 2. On the other hand, the refrigerant that has absorbed heat in the second heat exchanger 13 returns to the compressor 11 through the decompression mechanism 15, the third heat exchanger 14, and the flow path switching valve 17 and circulates in the refrigerant circuit 16.

  Thus, in the bathroom dehumidifying operation, the refrigerant absorbs heat from the supply air in the second heat exchanger 13, and the refrigerant dissipates heat in the first heat exchanger 12 with respect to the supply air cooled and dehumidified by this heat absorption. In the bathroom dehumidifying operation, the first heat exchanger 12 radiates the refrigerant with respect to the supplied air, and the radiator 24 dissipates heat in the bathroom 2 by supplying the reheated low-humidity air to the bathroom 2. The second heat exchanger 13 becomes the heat absorber 25 in which the refrigerant absorbs heat from the supply air. Since the second damper 23 is set at a position where the suction side of the exhaust fan 21 and the connection duct 9 communicate with each other, the connection duct 9 and the exhaust duct 10 and the suction port 3 are closed and supplied to the bathroom 2. In addition, leakage of the low-humidity air to the dressing room 5 and the outdoors and intrusion of moisture from the dressing room 5 and the outdoors are suppressed, and the interior of the bathroom 2 is effectively dehumidified.

  Next, the dressing room dehumidifying operation will be described. When performing this dressing room dehumidifying operation, as shown in FIG. 5 (b), the flow path switching valve 17 is in the heating cycle side, the on-off valve 19 is closed, and the first damper 22 is connected to the outlet side of the circulation fan 20. 9 and the second damper 23 is set to a position where the suction side of the exhaust fan 21 communicates with the suction port 4.

  When the compressor 11 and the circulation fan 20 are operated in such a state, the high-temperature and high-pressure refrigerant compressed by the compressor 11 passes through the flow path switching valve 17 set on the heating cycle side and passes through the first heat exchanger 12. Then, since the on-off valve 19 is set in a closed state, it flows into the capillary tube 18. In the capillary tube 18, the refrigerant expands under reduced pressure, becomes a low temperature and low pressure, and flows into the second heat exchanger 13. The air in the bathroom 2 is supplied to the second heat exchanger 13 through the suction port 3 by the operation of the circulation fan 20, and the low-temperature and low-pressure refrigerant absorbs heat from the supply air, whereby the supply air is cooled and dehumidified. The cooled and dehumidified supply air is supplied to the first heat exchanger 12 located downstream, and the high-temperature and high-pressure refrigerant described above radiates heat to the supply air, so that the supply air is heated. Thus, after cooling and dehumidifying in the second heat exchanger 13, the supply air heated in the first heat exchanger 12 passes through the connection duct 9 which is the opening direction of the first damper 22 and is not shown. 8 is supplied into the dressing room 5. On the other hand, the refrigerant that has absorbed heat in the second heat exchanger 13 returns to the compressor 11 through the decompression mechanism 15, the third heat exchanger 14, and the flow path switching valve 17 and circulates in the refrigerant circuit 16.

  As described above, the dehumidifying room dehumidifying operation is such that the refrigerant absorbs heat from the supply air in the second heat exchanger 13, and the refrigerant dissipates heat in the first heat exchanger 12 with respect to the supply air cooled and dehumidified by this heat absorption. By supplying the reheated low-humidity air to the dressing room 5, the inside of the dressing room 5 is dehumidified. In the dehumidifying room dehumidifying operation, the first heat exchanger 12 dissipates heat to the supply air. The cooler 24 and the second heat exchanger 13 become the heat absorber 25 in which the refrigerant absorbs heat from the supply air.

  And in the said structure, in the simple structure which connects the main body 1 installed in the ceiling surface of the bathroom 2 and the dressing room 5 with the single connection duct 9 as mentioned above, switching of the 1st damper 22 and the 2nd damper 23 is carried out. It is possible to switch between the bathroom dehumidifying operation shown in FIG. 5 (a) and the dressing room dehumidifying operation shown in FIG. 5 (b) only by the operation, and space saving and improvement in workability can be achieved by reducing the number of ducts. it can.

  FIG. 6 is an operation explanatory view for explaining the operation of the bathroom dehumidifying and drying operation and the dressing room dehumidifying and drying operation, FIG. 6 (a) is the operation during the bathroom dehumidifying and drying operation, and FIG. 6 (b) is the dressing room dehumidifying and drying operation. Operation during operation is shown. First, when the bathroom dehumidifying and drying operation is executed, as shown in FIG. 6A, the flow path switching valve 17 is on the heating cycle side, the on-off valve 19 is closed, and the first damper 22 is on the outlet side of the circulation fan 20 as the outlet. 4, the second damper 23 is set at a position where the suction side of the exhaust fan 21 communicates with the connection duct 9.

  When the compressor 11, the circulation fan 20, and the exhaust fan 21 are each operated in such a state, the high-temperature and high-pressure refrigerant compressed by the compressor 11 passes through the flow path switching valve 17 set on the heating cycle side, After flowing into the heat exchanger 12, the on-off valve 19 is set in the closed state, and therefore flows into the capillary tube 18. In the capillary tube 18, the refrigerant expands under reduced pressure, becomes a low temperature and low pressure, and flows into the second heat exchanger 13. The air in the bathroom 2 is supplied to the second heat exchanger 13 through the suction port 3 by the operation of the circulation fan 20, and the low-temperature and low-pressure refrigerant absorbs heat from the supply air, whereby the supply air is cooled and dehumidified. The cooled and dehumidified supply air is supplied to the first heat exchanger 12 located downstream, and the high-temperature and high-pressure refrigerant described above radiates heat to the supply air, so that the supply air is heated. The supply air heated in the first heat exchanger 12 after being cooled and dehumidified in the second heat exchanger 13 is guided to the outlet 4 side in the opening direction of the first damper 22 and is sent from the outlet 4 to the bathroom 2. Supplied in. On the other hand, the refrigerant that has absorbed heat in the second heat exchanger 13 flows into the decompression mechanism 15 and is decompressed and expanded again to become a low temperature and a low pressure, and flows into the third heat exchanger 14. The air in the dressing room 5 is supplied to the third heat exchanger 14 through the connection duct 9 in the opening direction of the second damper 23 by the operation of the exhaust fan 21, and the refrigerant further absorbs heat from the supplied air. The refrigerant that has absorbed heat in the third heat exchanger 14 returns to the compressor 11 through the flow path switching valve 17 and circulates in the refrigerant circuit 16. On the other hand, the air absorbed by the refrigerant in the third heat exchanger 14 is discharged from the exhaust duct 10 to the outside.

  Thus, in the bathroom dehumidifying and drying operation, in the second heat exchanger 13 and the third heat exchanger 14, the refrigerant absorbs heat from the air in the bathroom 2 and the air in the dressing room 5 supplied through the connection duct 9, and In the heat exchanger 12, the supply air is cooled and dehumidified in the second heat exchanger 13 to dissipate heat recovered from the air in the bathroom 2 and the air in the dressing room 5 to the supply air. In this bathroom dehumidifying and drying operation, the first heat exchanger 12 is supplied by the circulation fan 20 by supplying the high-temperature and low-humidity air to the bathroom 2. A radiator 24 that radiates heat to the air, a second heat exchanger 13 that is supplied by the circulation fan 20, a first heat absorber 26 that absorbs heat from the air, and a third heat exchanger 14 that are exhaust fans 21. Refrigerant from the air to be supplied is the second heat sink 27 absorbs heat Ri.

  Next, the dressing room dehumidifying and drying operation will be described. When performing this dressing room dehumidifying and drying operation, as shown in FIG. 6B, the flow path switching valve 17 is connected to the heating cycle side, the on-off valve 19 is closed, and the first damper 22 is connected to the outlet side of the circulation fan 20. The second damper 23 is set at a position where the suction side of the exhaust fan 21 communicates with the suction port 4.

  When the compressor 11, the circulation fan 20, and the exhaust fan 21 are each operated in such a state, the high-temperature and high-pressure refrigerant compressed by the compressor 11 passes through the flow path switching valve 17 set on the heating cycle side, After flowing into the heat exchanger 12, the on-off valve 19 is set in the closed state, and therefore flows into the capillary tube 18. In the capillary tube 18, the refrigerant expands under reduced pressure, becomes a low temperature and low pressure, and flows into the second heat exchanger 13. The air in the bathroom 2 is supplied to the second heat exchanger 13 through the suction port 3 by the operation of the circulation fan 20, and the low-temperature and low-pressure refrigerant absorbs heat from the supply air, whereby the supply air is cooled and dehumidified. The cooled and dehumidified supply air is supplied to the first heat exchanger 12 located downstream, and the high-temperature and high-pressure refrigerant described above radiates heat to the supply air, so that the supply air is heated. The supply air heated in the first heat exchanger 12 after being cooled and dehumidified in the second heat exchanger 13 is led to the connection duct 9 side which is the opening direction of the first damper 22 and is sent from the ventilation port 8 (not shown). It is supplied into the dressing room 5. On the other hand, the refrigerant that has absorbed heat in the second heat exchanger 13 flows into the decompression mechanism 15 and is decompressed and expanded again to become a low temperature and a low pressure, and flows into the third heat exchanger 14. The air in the bathroom 2 is supplied to the third heat exchanger 14 through the suction port 3 that is the opening direction of the second damper 23 by the operation of the exhaust fan 21, and the refrigerant further absorbs heat from the supplied air. The refrigerant that has absorbed heat in the third heat exchanger 14 returns to the compressor 11 through the flow path switching valve 17 and circulates in the refrigerant circuit 16. On the other hand, the air absorbed by the refrigerant in the third heat exchanger 14 is discharged from the exhaust duct 10 to the outside.

  Thus, in the dressing room dehumidifying and drying operation, the refrigerant absorbs heat from the air in the bathroom 2 and the air in the dressing room 5 supplied through the connection duct 9 in the second heat exchanger 13 and the third heat exchanger 14, and In the first heat exchanger 12, the supply air is cooled and dehumidified in the second heat exchanger 13 to dissipate heat recovered from the air in the bathroom 2 and the air in the dressing room 5, thereby reducing the supply air at high temperature and low humidity. The dehumidifying room 5 is dehumidified and dried by supplying the high-temperature and low-humidity air to the undressing room 5, and in this undressing room dehumidifying and drying operation, the first heat exchanger 12 is connected to the circulation fan 20. The radiator 24 radiates heat to the air supplied by the air, the second heat exchanger 13 exhausts the first heat absorber 26 from which the refrigerant absorbs heat from the air supplied by the circulation fan 20, and the third heat exchanger 14 exhausts. Fah Refrigerant from the air supplied by 21 is second heat sink 27 absorbs heat.

  And in the said structure, in the simple structure which connects the main body 1 installed in the ceiling surface of the bathroom 2 and the dressing room 5 with the single connection duct 9 as mentioned above, switching of the 1st damper 22 and the 2nd damper 23 is carried out. Switching between the bathroom dehumidifying and drying operation shown in FIG. 6 (a) and the dressing room dehumidifying / drying operation shown in FIG. 6 (b) is possible only by the operation, saving space and improving workability by reducing the number of connecting ducts. Can be planned.

  FIG. 7 is an operation explanatory diagram for explaining the operation of the bathroom drying operation. When the bathroom drying operation is executed, the flow path switching valve 17 is on the heating cycle side and the on-off valve 19 is closed as shown in FIG. The first damper 22 is set at a position where the blowing side of the circulation fan 20 communicates with the outlet 4, and the second damper 23 is set at a position where the suction side of the exhaust fan 21 communicates with the suction port 3.

  When the compressor 11, the circulation fan 20, and the exhaust fan 21 are each operated in such a state, the high-temperature and high-pressure refrigerant compressed by the compressor 11 passes through the flow path switching valve 17 set on the heating cycle side, After flowing into one heat exchanger 12, it flows into the second heat exchanger 13 through the on-off valve 19 set to an open state without being subjected to a pressure reducing action. The air in the bathroom 2 is supplied to the first heat exchanger 12 and the second heat exchanger 13 through the suction port 3 by the operation of the circulation fan 20, and the high-temperature and high-pressure refrigerant dissipates heat to the supply air and supplies the air. Is heated. The heated supply air is led to the outlet 4 side which is the opening direction of the first damper 22 and is supplied into the bathroom 2 from the outlet 4. On the other hand, the refrigerant that has dissipated heat in the first heat exchanger 12 and the second heat exchanger 13 flows into the decompression mechanism 15, expands under reduced pressure, becomes a low temperature and a low pressure, and flows into the third heat exchanger 14. The air in the bathroom 2 is supplied to the third heat exchanger 14 through the suction port 3 in the opening direction of the second damper 23 by the operation of the exhaust fan 21, and the refrigerant absorbs heat from the supplied air. The refrigerant that has absorbed heat in the third heat exchanger 14 returns to the compressor 11 through the flow path switching valve 17 and circulates in the refrigerant circuit 16. On the other hand, the air absorbed by the refrigerant in the third heat exchanger 14 is discharged from the exhaust duct 10 to the outside.

  In this way, in the bathroom drying operation, in the third heat exchanger 14, the refrigerant absorbs heat from the air in the bathroom 2 to recover heat from the moisture contained in the supply air, and this recovered heat is used as the first heat exchanger 12. In the second heat exchanger 13, the refrigerant dissipates heat to the supply air, whereby the high-temperature air heated by the heat dissipation is supplied to the bathroom 2 to dry the interior of the bathroom 2. Can be dried. In particular, when the laundry is dried in the bathroom 2 and dried, the moisture dissipated from the clothes is collected by the third heat exchanger 14, so that the drying efficiency is improved. In this bathroom heating operation, the first heat exchanger 12 and the second heat exchanger 13 dissipate heat from the refrigerant to the supply air, and the third heat exchanger 14 absorbs heat from the supply air to the heat absorber 25. It becomes.

  And in the said structure, in the simple structure which connects the main body 1 installed in the ceiling surface of the bathroom 2 and the dressing room 5 with the single connection duct 9 as mentioned above, switching of the 1st damper 22 and the 2nd damper 23 is carried out. It is possible to execute a bathroom drying operation only by operation, and it is possible to save space and improve workability by reducing the number of ducts.

  With the configuration and operation described above, the multi-room ventilation air conditioner of the present embodiment is a single connection duct that connects the main body 1 disposed on the ceiling surface of the bathroom 2 and the dressing room 5 adjacent to the bathroom 2. By switching the air flow direction in 9, the air conditioning of the bathroom 2 and the air conditioning of the dressing room 5 can be switched, and the effect of improving workability and saving the space of the duct is achieved.

  Then, the air from the dressing room 5 is taken into the main body 1 through the connection duct 9 by the exhaust fan 21, supplied to the heat absorber 25, cooled by the heat absorbed by the refrigerant, and then discharged to the outside through the exhaust duct 10, and the bathroom 2 by the circulation fan 20. The internal air is taken into the main body 1 and supplied to the radiator 24, heated by the heat radiation of the refrigerant and then supplied to the bathroom 2, and the exhaust fan 21 takes the air in the bathroom 2 into the main body 1 and the heat absorber. 25, cooled by heat absorption of the refrigerant and then discharged to the outside through the exhaust duct 10, and air in the bathroom 2 is taken into the main body 1 by the circulation fan 20 and supplied to the radiator 24 and heated by heat dissipation of the refrigerant. Since the operation mode supplied to the dressing room 5 through the duct 9 can be switched, the main body 1 and the dressing room 5 can be connected to the single connection duct 9. The switchable heating the dressing room 5 and heating bath 2 in a simple structure to connect only, it is possible to realize the space saving of the improvement of workability and the duct.

  In addition, the air from the dressing room 5 is taken into the main body 1 through the connection duct 9 by the exhaust fan 21, supplied to the radiator 24, heated by the heat radiation of the refrigerant, and then discharged to the outside through the exhaust duct 10 and the bathroom 2 by the circulation fan 20. The internal air is taken into the main body 1, supplied to the heat absorber 25, cooled by absorbing the heat of the refrigerant, and then supplied to the bathroom 2, and the exhaust fan 21 takes the air in the bathroom 2 into the main body 1 to dissipate the heat. 24, heated by the heat radiation of the refrigerant, and then discharged to the outside through the exhaust duct 10, and the air in the bathroom 2 is taken into the main body 1 by the circulation fan 20 and supplied to the heat absorber 25 and cooled by the heat absorption of the refrigerant. Since the operation mode supplied to the dressing room 5 through the duct 9 can be switched, the main body 1 and the dressing room 5 can be connected to the single connecting duct 9. In the switchable cooling of dressing room 5 and the cooling bath 2 in a simple structure that connects, it is possible to realize a space saving improvement in workability and the duct.

  Further, the air in the bathroom 2 is taken into the main body 1 by the circulation fan 20 and supplied to the heat absorber 25, cooled and dehumidified by the heat absorption of the refrigerant, supplied to the radiator 24, heated by the heat radiation of the refrigerant, and supplied to the bathroom 2. The operation mode and the circulation fan 20 take in the air in the bathroom 2 into the main body 1, supply it to the heat absorber 25, cool and dehumidify it by absorbing the heat of the refrigerant, supply it to the radiator 24 and heat it by radiating the refrigerant and connect it Since the operation mode supplied to the dressing room 5 through the duct 9 can be switched, the dehumidification of the bathroom 2 and the dressing room 5 can be performed in a simple configuration in which the main body 1 and the dressing room 5 are connected only by a single connection duct 9. Dehumidification can be switched to improve workability and save space in the duct.

  In addition, the air from the dressing room 5 is taken into the main body 1 through the connection duct 9 by the exhaust fan 21, supplied to the second heat absorber 27, cooled by the heat absorption of the refrigerant, and then discharged to the outside through the exhaust duct 10 and by the circulation fan 20. An operation mode in which air in the bathroom is taken into the main body 1 and supplied to the first heat absorber 26, cooled and dehumidified by heat absorption of the refrigerant, supplied to the radiator 24, heated by heat dissipation of the refrigerant and supplied to the bathroom 2, and The air in the bathroom 2 is taken into the main body 1 by the exhaust fan 21, supplied to the second heat absorber 27, cooled by the heat absorbed by the refrigerant, and then discharged outside through the exhaust duct 10, and the air in the bathroom 2 is exhausted by the circulation fan 20. It is taken into the main body 1 and supplied to the first heat absorber 26, cooled and dehumidified by the heat absorption of the refrigerant, and then supplied to the radiator 24 and heated by the heat radiation of the refrigerant to connect the duct The operation mode supplied to the dressing room 5 through the switchable structure can be switched, so that the body 1 and the dressing room 5 are connected by the single connection duct 9 only, and the dehumidification drying of the bathroom 2 and the dehumidification of the dressing room 5 are performed. It is possible to switch the drying, and it is possible to improve the workability and save the space of the duct.

  In addition, the air in the bathroom 2 is taken into the main body 1 by the exhaust fan 21 and supplied to the heat absorber 25, cooled by the heat absorbed by the refrigerant, and then discharged to the outside through the exhaust duct 10, and the air in the bathroom 2 is discharged by the circulation fan 20 A single connection between the main body 1 and the dressing room 5 is made possible by switching the form of the bathroom drying operation that is taken into the main body 1 and supplied to the radiator 24 and heated by the heat radiation of the refrigerant and then supplied to the bathroom 2. A highly efficient drying operation can be realized with a simple configuration in which only the duct 9 is connected.

  As described above, the multi-room ventilation air conditioner according to the present invention enables switching between the air conditioning in the bathroom and the dressing room only by communicating the dressing room and the main body with a single duct, improving the workability and improving the duct. Space saving can be realized, and the present invention can be applied not only to ventilation air conditioning in bathrooms and dressing rooms, but also to multi-room ventilation air conditioning apparatuses such as toilets, living rooms, bedrooms, and kitchens.

The figure which shows the installation state of the multi-room ventilation air conditioner concerning Embodiment 1 of this invention. Airway configuration diagram and refrigerant circuit diagram of the multi-room ventilation air conditioner Operation explanatory diagram explaining the operation operation of the multi-room ventilation air conditioner ((a) Operation explanatory diagram explaining the operation operation during bathroom heating operation, (b) Operation explanation explaining the operation operation during dressing room heating operation (Figure) Operation explanatory diagram explaining the operation operation of the multi-room ventilation air conditioner ((a) Operation explanatory diagram explaining the operation operation at the time of bathroom cooling operation, (b) Operation explanation explaining the operation operation at the dressing room cooling operation) (Figure) Operation explanatory diagram explaining the operation operation of the multi-room ventilation air conditioner ((a) Operation explanatory diagram explaining the operation operation at the time of bathroom dehumidification operation, (b) Operation explanation explaining the operation operation at the dressing room dehumidification operation (Figure) Operation explanatory diagram explaining the operation operation of the multi-room ventilation air conditioner ((a) Operation explanatory diagram explaining the operation operation at the time of bathroom dehumidification drying operation, (b) Operation operation at the dressing room dehumidification drying operation being explained (Explanation of operation) Operation explanatory diagram explaining the operation operation at the time of bathroom drying operation of the multi-room ventilation air conditioner

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Bathroom 5 Dressing room 9 Connection duct 10 Exhaust duct 11 Compressor 15 Decompression mechanism 16 Refrigerant circuit 20 Circulating fan 21 Exhaust fan 24 Radiator 25 Heat absorber 26 First heat absorber 27 Second heat absorber

Claims (5)

A compressor that compresses the refrigerant, a radiator that radiates the refrigerant to the supply air, a decompression mechanism that expands the refrigerant and depressurizes, and the refrigerant are supplied into the main body disposed on the ceiling surface of the bathroom adjacent to the dressing room. A refrigerant circuit piped to a heat absorber that absorbs heat from the air; a circulation fan that sucks air from the bathroom and supplies it to the bathroom or the dressing room; and an exhaust that sucks air from the bathroom or the dressing room and discharges it to the outside A multi-chamber ventilation air conditioner including a fan, a connection duct communicating the main body and the dressing room, and an exhaust duct communicating the main body and the outdoors. The air in the dressing room is taken into the main body through a duct, supplied to the heat absorber, cooled by the heat absorbed by the refrigerant, and then discharged to the outside through the exhaust duct and the circulation. The air in the bathroom is taken into the main body by a fan, supplied to the radiator, heated by heat radiation of the refrigerant, and then supplied to the bathroom, and the air in the bathroom by the exhaust fan. The air is taken into the main body, supplied to the heat absorber, cooled by the heat absorbed by the refrigerant, and then discharged to the outside through the exhaust duct, and air in the bathroom is taken into the main body by the circulation fan and supplied to the heat radiator. A multi-room ventilation air conditioner configured to be switchable between a heating mode of a dressing room heating operation to be supplied to the dressing room through the connection duct after being heated by heat radiation of a refrigerant. A compressor that compresses the refrigerant, a radiator that radiates the refrigerant to the supply air, a decompression mechanism that expands the refrigerant and depressurizes, and the refrigerant are supplied into the main body disposed on the ceiling surface of the bathroom adjacent to the dressing room. A refrigerant circuit piped to a heat absorber that absorbs heat from the air; a circulation fan that sucks air from the bathroom and supplies it to the bathroom or the dressing room; and an exhaust that sucks air from the bathroom or the dressing room and discharges it to the outside A multi-chamber ventilation air conditioner including a fan, a connection duct communicating the main body and the dressing room, and an exhaust duct communicating the main body and the outdoors. The air in the dressing room is taken into the main body through a duct, supplied to the radiator, heated by heat dissipation from the refrigerant, and then discharged to the outside through the exhaust duct and the circulation. The air in the bathroom is taken into the main body by the fan, supplied to the heat absorber, cooled by the heat absorbed by the refrigerant, and then supplied to the bathroom, and the air in the bathroom by the exhaust fan. The air is taken into the main body, supplied to the radiator, heated by the heat radiation of the refrigerant, and then discharged to the outside through the exhaust duct, and the air in the bathroom is taken into the main body by the circulation fan and supplied to the heat absorber. A multi-room ventilation air conditioner configured to be switchable between a dressing room cooling operation mode to be supplied to the dressing room through the connection duct after being cooled by heat absorption of the refrigerant. A compressor that compresses the refrigerant, a radiator that radiates the refrigerant to the supply air, a decompression mechanism that expands the refrigerant and depressurizes, and the refrigerant are supplied into the main body disposed on the ceiling surface of the bathroom adjacent to the dressing room. A refrigerant circuit connected to a heat absorber that absorbs heat from the air, a circulation fan that sucks air from the bathroom and supplies the air to the bathroom or the dressing room, and a connection duct that communicates the main body with the dressing room. A multi-chamber ventilation air conditioner installed, wherein the air in the bathroom is taken into the main body by the circulation fan, supplied to the heat absorber, cooled and dehumidified by heat absorption of the refrigerant, and then supplied to the radiator A dehumidifying operation of the bathroom that is heated by heat radiation and supplied to the bathroom, and the air in the bathroom is taken into the main body by the circulation fan and supplied to the heat absorber, and is cooled and dehumidified by absorbing heat from the refrigerant. Multi-room ventilating air-conditioning system, characterized in that a form of dressing room dehumidifying operation supplied to the changing room and configured to be switchable through the connecting duct is heated by the radiation of the refrigerant supplied to the radiator after the. A compressor that compresses the refrigerant, a radiator that radiates the refrigerant to the supply air, a decompression mechanism that expands the refrigerant and depressurizes, and the refrigerant are supplied into the main body disposed on the ceiling surface of the bathroom adjacent to the dressing room. A refrigerant circuit in which a first heat absorber and a second heat absorber that absorb heat from air are connected by piping, a circulation fan that sucks air from the bathroom and supplies the air to the bathroom or the dressing room, and air from the bathroom or the dressing room A multi-chamber ventilation air conditioner provided with an exhaust fan that sucks in and exhausts the air to the outdoors, a connection duct that communicates the main body with the dressing room, and an exhaust duct that communicates the main body with the outdoors. Then, air from the dressing room is taken into the main body through the connection duct by the exhaust fan, supplied to the second heat absorber, and cooled by heat absorption of the refrigerant. The air in the bathroom is discharged into the main body by the circulation fan and supplied to the first heat absorber, cooled and dehumidified by heat absorption of the refrigerant, and then supplied to the radiator and heated by heat dissipation of the refrigerant. The bathroom dehumidifying and drying operation to be supplied to the bathroom, and the air in the bathroom is taken into the main body by the exhaust fan, supplied to the second heat absorber, cooled by the heat absorbed by the refrigerant, and then discharged to the outside through the exhaust duct. In addition, the air in the bathroom is taken into the main body by the circulation fan, supplied to the first heat absorber, cooled and dehumidified by the heat absorbed by the refrigerant, and then supplied to the radiator and heated by the heat released from the refrigerant. A multi-room ventilation air conditioner configured to be switchable between a mode of a dressing room dehumidifying and drying operation supplied to the dressing room through a duct. The air in the bathroom is taken into the main body by the exhaust fan, supplied to the heat absorber, cooled by the heat absorbed by the refrigerant, discharged to the outside through the exhaust duct, and the air in the bathroom is taken into the main body by the circulation fan and supplied to the radiator The multi-room ventilation air conditioner according to claim 1, 2, 3, or 4, wherein the mode of the bathroom drying operation to be returned to the bathroom after being heated by the heat radiation of the refrigerant is further switchable.

Images