JP2012202680A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner that prevents an odor from leaking, can be installed eve on a height-limited ceiling, does not impair operability in assembling or installation, and simplified in structure.SOLUTION: An air conditioner 110 includes: a housing 112 with its upper surface opened; a first section 112A which discharges air sucked from an interior space 106 which is formed in the housing and exhaust an odor to the outside of a room; a ventilation fan 130 arranged in the first section; the heat exchanger 125 of a heat pump 120 arranged in the fist section; a second section 112B which circulates air to interior spaces 102, 104 which are formed in the housing and generate no odor; a circulation fan 140 arranged in the second section; a heat exchanger 123 of the heat pump arranged in the second section; and the compressor 121 of the heat pump arranged laterally inside the housing and outside the first section.

Description

  The present invention relates to an independent air conditioner incorporating a heat pump.

  An air conditioner that performs ventilation and air conditioning of an indoor space using a heat pump is known (for example, Patent Document 1). Indoor spaces include bathrooms, washrooms, and toilets.

  Patent Document 1 discloses an air conditioner in which a circulation path and a ventilation path are formed. In the circulation path, for example, air in the bathroom is taken in, and the exhaust heat of the air is used by a heat pump, and then blown out into the bathroom to circulate the air. Further, in the ventilation path, air is sucked from the exhaust port opened to the indoor space and exhausted outside the room.

  The air conditioner heat pump includes a compressor that compresses the refrigerant, a heat exchanger that is disposed in the circulation path, an expansion valve that expands the refrigerant, and a heat exchanger that is disposed in the ventilation path. Piping is connected so that the refrigerant circulates in this order. Furthermore, the heat pump has a flow path switching valve (four-way valve), and heating operation and cooling operation are possible by switching the direction in which the refrigerant circulates with the four-way valve.

JP 2009-63278 A

  By the way, an odor may be generated in a toilet in an indoor space. In the air conditioner described in Patent Document 1, since the air path is simply formed by a damper, when the toilet air is sucked and exhausted outside the room, odor leaks from the ventilation path to the circulation path, Odor can circulate in the bathroom.

  In addition, when the ceiling height is limited as in an apartment house, it is desirable that the height direction of the air conditioner is small. However, in Patent Document 1, since a large compressor in the height direction is built in, it may be difficult to install on the ceiling of the apartment house.

  Further, the exterior body (housing) of the air conditioner is open at the bottom, and when housing heavy components such as a compressor, a heat exchanger, and a fan in the housing, these members are attached to the housing. It must be suspended from the body, workability is impaired, and the structure for attaching each member is complicated.

  In view of such problems, the present invention is an air conditioner that prevents odor leakage and can be installed on a ceiling with a height restriction, which does not impair workability during assembly and installation, and can simplify the structure. The purpose is to provide a machine.

  In order to solve the above-described problems, a typical structure of an air conditioner according to the present invention includes a housing whose upper surface is opened, and air sucked from an indoor space formed in the housing and generating odor. A first section for exhausting the air to the outside, a ventilation fan disposed in the first section, a first heat exchanger of the heat pump disposed in the first section, and a first section, A second section that circulates air to an indoor space that is formed therein and does not generate odors, a circulation fan that is disposed in the second section, and a second heat exchanger of the heat pump that is disposed in the second section And a heat pump compressor disposed laterally outside the first compartment inside the housing.

  According to the said structure, since the 1st division and the 2nd division are partitioned off, it can prevent that the air of the indoor space (for example, toilet) in which an odor generate | occur | produces circulates to another indoor space. Moreover, since the compressor is arrange | positioned horizontally, the magnitude | size of the height direction of an air conditioner can be made small. For this reason, even when the ceiling height is limited as in a housing complex, it can be installed as an independent air conditioner with a built-in heat pump. Furthermore, since the casing has an open upper surface, it can be installed on the ceiling or the like in the same posture after housing a fan, a heat exchanger, or the like in the casing. For this reason, simplification of the structure, simplification of assembly work and installation work can be achieved. Further, since the temperature of the exhaust heat (including hot and cold) can be adjusted as a heat source of the heat pump, the COP (operation coefficient) of the air conditioner can be improved as compared with the case where ventilation is simply performed.

  An attachment portion for attaching the first and second heat exchangers and a drain pan for receiving drain water condensed by heat exchange by the first and second heat exchangers are integrally formed on the bottom plate of the housing. It is good to be. Thereby, since the attachment part of the 1st and 2nd heat exchanger is integrally molded by the housing | casing, the attachment of the 1st and 2nd heat exchanger becomes easy. Further, since the drain pan is integrally formed in the housing, a connecting pipe for receiving drain water from the drain pan is not required, and the structure can be simplified.

  The bottom plate of the housing is formed with a drain outlet for draining drain water and a drain water path from the drain pan to the drain outlet, and the drain water path has a gradient that decreases in height as it is closer to the drain outlet. It is good to have. Thereby, drain water can be reliably drained to a drain outlet.

  The ventilation fan has a first partition that covers the upper surface of the first heat exchanger, and the housing has a second partition that separates the ventilation fan and the circulation fan from the first heat exchanger. An end plate that separates the first compartment and the second compartment may be provided at the end. Thereby, a 1st division and a 2nd division can be partitioned in the circumference | surroundings of a 1st heat exchanger only by attaching a 1st heat exchanger and a ventilation fan to a housing | casing. Therefore, the assembling work can be simplified.

  Outside the first section, the heat pump excluding the first heat exchanger and the refrigerant piping of the heat pump are collectively arranged, and the side end portion of the first heat exchanger disposed in the first section is the first section. The refrigerant piping that is adjacent to the outside and connected to the heat pump from the side end portion may extend from a position sandwiched between the end plate and the first partition. Thereby, the refrigerant | coolant piping of heat pump and heat pump other than the refrigerant | coolant piping of a 1st heat exchanger is collected outside the 1st area. In addition, the position of the refrigerant pipe of the first heat exchanger extending from the first section to the outside of the first section is sandwiched between the end plate and the first partition wall, so that the sealing property of the first section Ensuring is easy.

  It is good to provide the damper which forms the path | route which bypasses a 1st or 2nd heat exchanger in the same division as a 1st or 2nd heat exchanger. Thereby, when operating a ventilation fan or a circulation fan in the state which stopped the compressor, it can reduce pressure loss and can improve the efficiency of a fan by ventilating not via a heat exchanger.

  A reinforcing rib may be integrally formed on the lower surface of the casing in which the compressor is disposed. Thereby, since the rib for reinforcement receives the weight of a compressor, the intensity | strength of a housing | casing can be raised.

  A sheet metal frame member that covers the lower surface of the housing from below, and a suspension bracket that is provided at a corner of the frame material and that suspends the housing from the ceiling beam. The frame member is a compressor disposed in the housing. It is good to provide the sheet-metal support member bridged in the position corresponding to. Thereby, an air conditioner with a heavy weight can be reliably installed on the ceiling of a bathroom, for example, via a hanging fitting. Moreover, since the frame material including the support member receives the entire housing in which the compressor is accommodated, problems such as distortion of the housing can be avoided.

  The second heat exchanger includes two heat exchangers connected by a throttle valve, and the heat pump is used for bypassing the refrigerant from the second heat exchanger to return to the compressor without passing through the first heat exchanger. It is good to further have a switching valve. Thereby, in addition to cooling operation and heating operation, reheat dehumidification operation can be performed. In particular, when drying clothes in an indoor space (for example, a bathroom), if the dehumidifying operation with heating is performed, the relative humidity around the clothes is lowered because it is heating, and air sucked from the indoor space is dehumidified. Therefore, drying of clothes can be promoted.

  According to the present invention, it is possible to provide an air conditioner that prevents odor leakage, can be installed on a ceiling with a height restriction, and does not impair workability during assembly or installation, and can simplify the structure. Can do.

It is a figure explaining the indoor in which the air conditioner in this embodiment and an air conditioner are installed. It is a disassembled perspective view of an air conditioner. It is a top view of an air conditioner. It is a figure explaining the heat pump of an air conditioner. It is a perspective view of an air conditioner. It is a figure explaining the housing | casing of an air conditioner. It is a figure which shows the frame material installed in the compressor of an air conditioner, and the lower surface of a housing | casing. It is a figure which shows the state by which a frame material is attached to an air conditioner.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiments are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

  FIG. 1 is a diagram illustrating an air conditioner and an indoor place where the air conditioner is installed in the present embodiment. The indoor living space 100 is partitioned into, for example, a bathroom 102 as an indoor space, a washroom 104, and a toilet 106. The air conditioner 110 is installed behind the ceiling of the bathroom 102, and is connected to the bathroom 102, the washroom 104, and the toilet 106 via a duct 108. The air conditioner 110 ventilates the bathroom 102, the washroom 104, and the toilet 106 as indicated by arrows 102a, 104a, 106a, 108a in the drawing. Further, the air conditioner 110 circulates air to the bathroom 102 and the washroom 104 as indicated by white arrows 102b, 102c, 104b, and 104c in the figure.

  FIG. 2 is an exploded perspective view of the air conditioner 110. FIG. 3 is a top view of the air conditioner 110. FIG. 3A is a top view showing an assembled state of the air conditioner 110. FIG. 3B is a top view showing a part of FIG.

  As shown in FIG. 2, the air conditioner 110 includes a housing 112 having an open upper surface. The housing 112 has a bottom plate frame 114 and a side wall 116 surrounding the bottom plate frame 114. Duct ports 118a, 118b, 118c, 118d, and 118e are attached to the side wall 116 of the housing 112 (see FIGS. 2 and 3). In addition, dampers 114a, 114b, and 114c are formed on the bottom plate frame 114 of the housing 112 as shown in FIG. Further, the bottom plate frame 114 of the housing 112 has a rib 119a formed substantially at the center and a partition wall 119b formed continuously from the rib 119a.

  As shown in FIG. 2, the air conditioner 110 includes a heat pump (refrigerant cycle) 120, a ventilation fan 130, a circulation fan 140, and a drain pump 150 that are disposed in the housing 112 from above, and these members Is mounted in the housing 112 in the layout shown in FIG. Further, the air conditioner 110 includes a top plate 160 that covers the upper surface of the housing 112 and a panel 170 that is attached to the lower surface of the housing 112 from below. A partition wall 132 is attached to the ventilation fan 130.

  As shown in FIG. 3B, the housing 112 is partitioned from the first section 112A that forms the ventilation path, the second section 112B that is partitioned from the first section 112A and forms the circulation path, and the first section. It is divided into the 3rd division (cycle chamber) 112C which is outside 112A and arrange | positions most of the heat pump 120 collectively.

  A ventilation fan 130 shown in FIGS. 2 and 3A is installed in the first section 112A. In the ventilation path formed in the first section 112A, the air in the bathroom 102 is sucked from the damper 114a (see arrow 102a) by the ventilation fan 130, as shown in FIG. Are sucked from the duct ports 118a and 118b (see arrows 104a and 106a). The sucked air is exhausted from the duct port 118c by the ventilation fan 130 (see arrow 108a).

  The circulation fan 140 shown in FIGS. 2 and 3A is installed in the second section 112B. In the circulation path formed in the second section 112B, as shown in FIG. 3B, the air in the bathroom 102 is sucked from the damper 114b (see arrow 102b) and blown out from the damper 114c to the bathroom 102 by the circulation fan 140. (See arrow 102c). In the circulation path, as shown in FIG. 3B, the circulation fan 140 sucks the air in the bathroom undressing place 104 from the duct port 118e (see arrow 104b) and blows out from the duct port 118d to the bathroom undressing station 104. (See arrow 104c).

  FIG. 4 is a diagram illustrating the heat pump 120 of the air conditioner 110. Hereinafter, with reference to FIG. 3B and FIG. 4, the heat pump 120 that is mostly concentrated in the third section 112 </ b> C, and the heating operation, the cooling operation, and the reheat dehumidification operation by the heat pump 120 will be described.

  The heat pump 120 is a device that circulates a refrigerant and performs heat exchange with air sucked from the bathroom 102, the washroom 104, and the toilet 106 using the heat of vaporization and condensation of the refrigerant. As shown in FIG. 4, the heat pump 120 includes a compressor 121 that compresses the refrigerant, a four-way valve 122 that reverses the circulation direction of the refrigerant, and a heat exchanger (second heat exchanger) disposed in the second section 112B. 123, an expansion valve 124 for expanding the refrigerant, a heat exchanger (first heat exchanger) 125 disposed in the first section 112A, and a bypass switching valve 126, and these members Are connected by refrigerant piping.

  The heat exchanger 123 includes two heat exchangers 123A and 123B and a throttle valve 123C that connects the heat exchangers 123A and 123B. The throttle valve 123C functions as an expansion valve by restricting the flow path only in the reheat dehumidifying operation without restricting the flow path in the heating operation and the cooling operation. The bypass switching valve 126 switches the flow path only in the reheat dehumidification operation to form a bypass path (dotted line in the figure) 127.

  First, the heating operation will be described. In the heating operation, the four-way valve 122 is set as shown so that the refrigerant circulates in the direction indicated by the arrow A in the figure. Here, the refrigerant expanded and decompressed by the expansion valve 124 evaporates when passing through the heat exchanger 125 and absorbs heat from the air. At this time, by operating the ventilation fan 130, air sucked from the washroom 104 and the toilet 106 (see arrows 104a and 106a in FIG. 3B) passes through the heat exchanger 125 and is exhausted.

  The refrigerant that has absorbed heat from the air that has passed through the heat exchanger 125 is compressed by the compressor 121 to become a high-temperature and high-pressure gas, and is condensed when passing through the heat exchanger 123 to release heat to the air. At this time, the air sucked from the bathroom 102 or the washroom 104 (see arrows 102b and 104b in FIG. 3B) passes through the heat exchanger 123 by operating the circulation fan 140. Therefore, the air is heated by the heat radiation of the heat exchanger 123 and blown out from the damper 114c or the duct port 118d to the bathroom 102 or the bathroom dressing room 104 for heating.

  Next, the cooling operation will be described. In the cooling operation, the four-way valve 122 is set so that the refrigerant circulates in the direction indicated by the arrow B in the figure. Here, the refrigerant compressed into the high temperature and high pressure gas by the compressor 121 condenses when passing through the heat exchanger 125 and dissipates heat to the air. At this time, by operating the ventilation fan 130, the air sucked from the washroom 104 and the toilet 106 passes through the heat exchanger 125 and is exhausted.

  The refrigerant that has dissipated heat from the air that has passed through the heat exchanger 125 is expanded by the expansion valve 124, becomes low temperature and low pressure, evaporates when passing through the heat exchanger 123, and absorbs heat from the air. At this time, the air sucked from the bathroom 102 or the washroom 104 passes through the heat exchanger 123 by operating the circulation fan 140. Therefore, the air is cooled by the heat absorption of the heat exchanger 123, and the air can be blown out from the damper 114c or the duct port 118d to the bathroom 102 or the washroom 104.

  Next, the reheat dehumidification operation will be described. In the reheat dehumidifying operation, the four-way valve 122 is set so that the refrigerant circulates in the direction indicated by the arrow A as in the heating operation. Further, the bypass switching valve 126 is switched to form a bypass path 127 for returning the refrigerant that has come out of the heat exchanger 123 to the compressor 121 without passing through the heat exchanger 125. Further, the throttle valve 123C is throttled to function as an expansion valve for expanding the refrigerant.

  Here, the refrigerant expanded and depressurized by the throttle valve 123C as the expansion valve becomes a low temperature, evaporates when passing through the heat exchanger 123A, and absorbs heat from the air. The heat exchanger 123A is disposed on the upstream side of the heat exchanger 123B as shown in FIG.

  Subsequently, the refrigerant that has absorbed heat from the air that has passed through the heat exchanger 123A is compressed by the compressor 121 via the bypass switching valve 126 via the bypass path 127, becomes high temperature and high pressure, and is condensed when passing through the heat exchanger 123B. And radiate heat to the air. Therefore, the air sucked from the bathroom 102 or the washroom 104 is first cooled and dehumidified by passing through the heat exchanger 123A, and then reheated by passing through the heat exchanger 123B. The air thus deheated and dehumidified is returned to the bathroom 102 or the bathroom dressing room 104 from the damper 114c or the duct port 118d by operating the circulation fan 140.

  By the way, as described above, since the air in the toilet 106 is sucked into the first section 112A from the duct port 118b, there may be an odor. In such a case, by ensuring sealing between the first section 112A and the other sections 112B and 112C, odor leaks from the ventilation path to the circulation path, and the odor circulates in the bathroom 102 and the washroom 104. Can be avoided.

  Therefore, hereinafter, the sealing structure of the first section 112A and the other sections 112B and 112C and the layout of the heat pump 120 accompanying the sealing structure will be described with reference to FIG. FIG. 5 is a perspective view of the air conditioner 110. FIG. 5A is a diagram showing air ventilation and circulation together with the structure of the air conditioner 110. FIG.5 (b) is a figure which shows the state which looked at the air conditioner 110 of Fig.5 (a) from C direction.

  As shown in FIG. 3B, the heat pump 120 includes a heat exchanger 123 including two heat exchangers 123A and 123B arranged in the second section 112B, and a heat exchanger 125 arranged in the first section 112A. Are arranged in the third partition 112C except for the above.

  In the heat pump 120, as shown in FIG. 3B, the compressor 121 is installed horizontally. By arranging the compressor 121 horizontally, the size of the air conditioner 110 in the height direction can be reduced. Further, not only the four-way valve 122 and the expansion valve 124 described above, but also flare nuts 128a and 128b used for connecting the refrigerant pipes of the heat exchanger 123 and the accumulator 121a for storing the refrigerant are arranged around the compressor 121. ing. By using the flare nuts 128a and 128b, workability is improved when the heat exchanger 123 is removed from the heat pump 120 for maintenance.

  As shown in FIG. 5B, the first section 112A is separated from the other sections 112B and 112C by the partition wall 132 of the ventilation fan 130, the partition wall 119b of the housing 112, and the end plates 125a and 125b. Ensuring airtightness. That is, the partition wall 132 of the ventilation fan 130 covers the upper surface of the heat exchanger 125 and is separated from the third section 112C. The partition wall 119b of the housing 112 separates the ventilation fan 130 and the circulation fan 140, that is, the second section 112B. The end plate 125a is provided at the side end of the heat exchanger 125 and separates from the third section 112C. Note that the end plates 125 a and 125 b also prevent the air sucked from the duct ports 118 a and 118 b from being introduced to other than the ventilation fan 130. For this reason, just by attaching the ventilation fan 130 and the heat exchanger 125 to the housing 112, the airtightness is secured between the first compartment 112A and the other compartments 112B and 112C around the heat exchanger 125, and As a result, the assembly work can be simplified.

  Further, a refrigerant pipe 129 extending to the heat pump 120 is connected to a side end portion of the heat exchanger 125 on the third section 112C side. As shown in FIG. 5B, the refrigerant pipe 129 extends to the heat pump 120 at a side end portion of the heat exchanger 125 from a position sandwiched between the end plate 125 a and the partition wall 132 of the ventilation fan 130. Therefore, the refrigerant pipe 129 extending from the first section 112A to the third section 112C does not impair the sealing performance of the first section 112A, and it is easy to ensure the sealing performance. As shown in FIG. 5A, a partition wall 142 is provided in the circulation fan 140 to cover, for example, the side surface or the upper surface of the heat exchanger 123B, and air passing through the heat exchanger 123 is reliably sucked into the circulation fan 140. You may be made to do.

  FIG. 6 is a diagram illustrating the housing 112 of the air conditioner 110. FIG. 6A is a perspective view showing the housing 112. FIG. 6B is a top view showing each region formed on the bottom plate frame 114 of the housing 112. FIG. 6C is a top view showing a state in which drain water is received by the bottom plate frame 114.

  As shown in FIGS. 6A and 6B, the bottom plate frame 114 of the housing 112 has a heat exchanger 125 arranged in the first section 112A and a heat exchange arranged in the second section 112B. Attachment portions 180 and 182 for attaching the containers 123 are integrally formed. Further, the bottom plate frame 114 of the housing 112 includes a cycle chamber 184 as a third section 112C in which most of the heat pump 120 including the compressor 121 is disposed, and a drain water drain region 186 in which the drain pump 150 is disposed. It is integrally molded. For this reason, the heat pump 120 and the drain pump 150 including the heat exchangers 123 and 125 can be easily attached to the housing 112.

  As shown in FIG. 6C, drain pans (dotted line portions in the drawing) 190 and 192 are integrally formed on the bottom plate frame 114 of the housing 112. The drain pans 190 and 192 have a shape for receiving drain water condensed by heat exchange in the heat exchangers 123 and 125. In addition, a drain port 194 and a drain water path (shaded portion in the figure) 196 are integrally formed on the bottom plate frame 114 of the housing 112.

  The drain port 194 is an opening for draining drain water, which is formed in the drain water drain region 186 shown in FIG. The drain water path 196 is a path from the drain pans 190, 192 to the drain port 194, and has a gradient that decreases in height as it is closer to the drain port 194. For this reason, the drain water flows from the drain pans 190 and 192 to the drain outlet 194 and is surely drained from the drain outlet 194 as indicated by an arrow in FIG. Since drain water is also generated from the heat pump 120, a drain water path 196 is also formed around the cycle chamber 184 shown in FIG. As described above, since the drain pans 190 and 192, the drain port 194, and the drain water path 196 are integrally formed on the bottom plate frame 114 of the housing 112, for example, a connecting pipe for receiving drain water from the existing drain pan is unnecessary. Thus, the structure can be simplified.

  FIG. 7 is a diagram illustrating a frame member installed on the lower surface of the compressor 121 and the housing 112 of the air conditioner 110. FIG. 7A is a view showing a mounting base on which the horizontally placed compressor 121 is attached. FIG. 7B is a diagram illustrating a state where the compressor 121 of FIG. 7A is attached to the housing 112 and a state where a frame member is attached to the housing 112. FIG.7 (c) is a figure which shows the state which looked at the air conditioner 110 with which the frame material of FIG.7 (b) was attached from the downward direction.

  As shown in FIGS. 7A and 7B, the compressor 121 is installed on the bottom plate frame 114 of the housing 112 in a state of being attached to the mounting base 200 together with the accumulator 121a. The mounting base 200 is made of sheet metal, and supports the compressor at four points via anti-vibration rubbers 202a and 202b. For this reason, the vibration of the compressor 121 serving as a vibration source can be reduced.

  Further, as shown in FIG. 7C, a reinforcing rib 198 is integrated in a region corresponding to the cycle chamber 184 (see FIG. 6B) in which the compressor 121 is disposed on the lower surface of the housing 112. Molded. Since the reinforcing rib 198 receives the weight of the compressor 121, the strength of the housing 112 can be increased.

  Furthermore, a sheet metal frame member 210 is attached to the lower surface of the housing 112. The frame member 210 covers the lower surface of the housing 112 from below, and as shown in FIG. 7C, suspension brackets 210a, 210b, 210c, 210d and a support member 212 are attached. The support member 212 is made of sheet metal, and is bridged to a position corresponding to the compressor 121 installed in the housing 112. The suspension fittings 210a, 210b, 210c, and 210d are members that are provided at the corners of the frame member 210 and suspend the air conditioner 110 from the ceiling beam. Accordingly, since the entire casing 112 on which each heavy member such as the compressor 121 is mounted is received by the frame member 210 including the support member 212, problems such as distortion of the casing 112 can be avoided. For this reason, the air conditioner 110 with a heavy weight can be reliably installed by suspending it from the ceiling beam via the suspension fittings 210a, 210b, 210c, and 210d.

  As described above, in the air conditioner 110 according to the present embodiment, the first compartment 112A is partitioned and sealed with respect to the other compartments 112B and 112C. Circulation to the washroom 104 can be prevented. Moreover, since the compressor 121 is disposed horizontally in the housing 112, the size of the air conditioner 110 in the height direction can be reduced. Therefore, even in an apartment house where the ceiling height is limited, it can be installed as an independent air conditioner 110 with a built-in heat pump 120.

  Further, in the air conditioner 110, the upper surface of the housing 112 is open, and after the above members are accommodated in the housing 112, the air conditioner 110 can be installed on the indoor ceiling as it is. Simplification can be achieved. Further, since the temperature can be adjusted using the heat and cold of the exhaust as a heat source for the heat pump 120, the COP (operation coefficient) of the air conditioner can be improved as compared with the case where the air is simply ventilated.

  Furthermore, in the air conditioner 110, the reheat dehumidification operation can be performed by the heat pump 120 in addition to the cooling operation and the heating operation. As an example, when drying clothes in the bathroom, if the dehumidifying operation with heating is performed, the relative humidity around the clothes is reduced because it is heating, and further, the air sucked from the indoor space is dehumidified. Can be promoted. In the reheat dehumidifying operation, a bypass path 127 is formed to return the refrigerant from the heat exchanger 123 to the compressor 121 without passing through the heat exchanger 125 when the humidity is discharged using the ventilation fan 130 when clothes are dried. ing. For this reason, drain water does not generate | occur | produce in the heat exchanger 125, and since the pressure loss of the ventilation fan 130 can be reduced, the air volume fall can be prevented.

  In the above embodiment, the air sucked from the washroom 104 and the toilet 106 is passed through the heat exchanger 125, and the air sucked from the bathroom 102 and the washroom 104 is passed through the heat exchanger 123. However, the present invention is not limited to this. As an example, a damper (not shown) that forms a path that bypasses the heat exchangers 123 and 125 may be provided. In this way, when the ventilation fan 130 or the circulation fan 140 is operated with the compressor 121 stopped, the pressure loss is reduced by blowing air without using the heat exchangers 123 and 125 by the damper. , Fan efficiency can be improved.

  Moreover, in the said embodiment, although the lower surface of the housing | casing 112 was covered only with the frame material 210, it is not limited to this. For example, as shown in FIG. 8, a heat insulating material 220 such as a polystyrene foam may be disposed between the housing 112 and the frame material 210. FIG. 8 is a diagram illustrating a state in which the frame member 210 is attached to the air conditioner 110. FIG. 8A is a diagram illustrating a state in which the frame member 210 is attached to the housing 112 via the heat insulating material 220. FIG.8 (b) is a figure which shows the state which looked at the air conditioner 110 of FIG.8 (b) from the downward direction. As described above, by disposing the heat insulating material 220 between the housing 112 and the frame member 210, the drain water of the housing 112 is insulated from the outside, and is suitable, for example, when the amount of heat of the drain water is used. It becomes.

  Further, a sound absorbing material may be attached to the third section 112C of the housing 112 to reduce noise generated by the compressor 121, for example. If it does in this way, it will become suitable in the state where air conditioner 110 was installed in the ceiling.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  The present invention can be used for an independent air conditioner incorporating a heat pump.

DESCRIPTION OF SYMBOLS 100 ... Living space, 102 ... Bathroom, 104 ... Washroom, 106 ... Toilet, 108 ... Duct, 110 ... Air conditioner, 112 ... Housing, 112A ... First division, 112B ... Second division, 112C ... Third 114, bottom plate frame, 114a to 114c, damper, 116, side wall, 118a to 118e, duct opening, 119a, rib, 119b, partition wall, 120 ... heat pump, 121 ... compressor, 121a ... accumulator, 122 ... four-way valve, 123 , 123A, 123B, 125 ... heat exchanger, 123C ... throttle valve, 124 ... expansion valve, 126 ... bypass switching valve, 127 ... bypass path, 128a, 128b ... flare nut, 129 ... refrigerant piping, 130 ... ventilation fan, 132 ... partition wall, 140 ... circulation fan, 150 ... drain pump, 160 ... top plate, 170 ... , 180, 182 ... mounting portion, 184 ... cycle chamber, 186 ... drain water drainage area, 190, 192 ... drain pan, 194 ... drain port, 196 ... drain water path, 198 ... reinforcing rib, 200 ... mounting base, 202a , 202b ... vibration proof rubber, 210 ... frame material, 210a to 210d ... hanging bracket, 212 ... support member, 220 ... heat insulating material

Claims (9)

A housing with an open top;
A first compartment for exhausting air sucked from an indoor space formed in the housing and generating odor;
A ventilation fan disposed in the first compartment;
A first heat exchanger of a heat pump disposed in the first section;
A second section that is partitioned from the first section and circulates air to an indoor space that is formed in the housing and does not generate odor;
A circulation fan disposed in the second compartment;
A second heat exchanger of the heat pump disposed in the second compartment;
An air conditioner comprising the compressor of the heat pump, which is disposed inside the casing and laterally outside the first section.   An attachment portion for attaching the first and second heat exchangers to the bottom plate of the casing, and a drain pan for receiving drain water condensed by heat exchange by the first and second heat exchangers The air conditioner according to claim 1, wherein is integrally molded. The bottom plate of the housing is formed with a drain port for draining drain water and a drain water path from the drain pan to the drain port,
The air conditioner according to claim 2, wherein the drain water path has a gradient that decreases in height as it approaches the drain port. The ventilation fan has a first partition wall covering an upper surface of the first heat exchanger,
The housing has a second partition wall that separates the ventilation fan and the circulation fan,
The end plate which separates between the said 1st division and the said 2nd division is provided in the side edge part of the said 1st heat exchanger, The any one of Claim 1 to 3 characterized by the above-mentioned. The air conditioner described. Outside the first section, the heat pump excluding the first heat exchanger and the refrigerant piping of the heat pump are collectively arranged,
A side end portion of the first heat exchanger disposed in the first section is adjacent to the outside of the first section, and a refrigerant pipe connected from the side end portion to the heat pump is connected to the end. The air conditioner according to claim 4, wherein the air conditioner extends from a position sandwiched between a plate and the first partition.   The damper which forms the path | route which bypasses the said 1st or 2nd heat exchanger in the same division as the said 1st or 2nd heat exchanger is provided. Item 1. An air conditioner according to item 1.   The air conditioner according to any one of claims 1 to 6, wherein a reinforcing rib is integrally formed on a lower surface of the casing in which the compressor is disposed. A sheet metal frame covering the lower surface of the housing from below;
Provided at a corner of the frame member, further comprising a hanging bracket for suspending the housing on a ceiling beam,
The air conditioner according to any one of claims 1 to 7, wherein the frame member includes a sheet metal support member bridged to a position corresponding to the compressor disposed in the casing. . The second heat exchanger includes two heat exchangers connected by a throttle valve,
The said heat pump further has the switching valve for bypass which returns the refrigerant | coolant which came out of the said 2nd heat exchanger to the said compressor not via the said 1st heat exchanger, The any one of Claim 1 to 8 characterized by the above-mentioned. Item 1. An air conditioner according to item 1.