WO2022269670A1 - 空気調和装置の室内機 - Google Patents

空気調和装置の室内機 Download PDF

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Publication number
WO2022269670A1
WO2022269670A1 PCT/JP2021/023355 JP2021023355W WO2022269670A1 WO 2022269670 A1 WO2022269670 A1 WO 2022269670A1 JP 2021023355 W JP2021023355 W JP 2021023355W WO 2022269670 A1 WO2022269670 A1 WO 2022269670A1
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WO
WIPO (PCT)
Prior art keywords
indoor unit
housing
discharge pipe
drain pan
switching valve
Prior art date
Application number
PCT/JP2021/023355
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English (en)
French (fr)
Japanese (ja)
Inventor
文人 北村
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2021/023355 priority Critical patent/WO2022269670A1/ja
Priority to JP2023529201A priority patent/JPWO2022269670A1/ja
Publication of WO2022269670A1 publication Critical patent/WO2022269670A1/ja

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate

Definitions

  • the present disclosure relates to an indoor unit of an air conditioner provided with two discharge paths from a drain pan.
  • the drain water generated on the surface of the heat exchanger is often stored in the drain pan and discharged from the drain pan through the drain pipe to the outside of the indoor unit.
  • the drain water contains dust, mold, fungi, and the like adhering to the surface of the heat exchanger, such dust, mold, fungi, and the like are also accumulated in the drain pan.
  • Patent Literature 1 an air conditioner for keeping the inside of the drain pan in good sanitary conditions.
  • the indoor unit of the air conditioner described in Patent Document 1 includes a drain pump that sucks up the drain water stored in the drain pan, and a drain pipe that discharges the drain water sucked up by the drain pump to the outside. Further, the indoor unit of Patent Document 1 has a first flow path that communicates with the drain pipe via the drain pump from the drain pan, and a second flow path that communicates with the drain pipe via the branch pipe from the drain pan. The first channel and the second channel are switched by a channel switching valve.
  • the present disclosure has been made against the background of the problems described above, and provides an indoor unit of an air conditioner that improves the ability to discharge cleaning water from a drain pan.
  • the indoor unit of the air conditioner includes a housing, a first discharge port provided in the housing and communicating between the inside of the housing and the outside of the housing, and the housing inside the housing.
  • a drain pan that is provided in the lower part of the indoor heat exchanger inside the housing and receives liquid that drops from the indoor heat exchanger; and inside the housing, from the drain pan a route switching valve through which the discharged liquid passes; a first discharge pipe provided between the route switching valve and the first discharge port through which the liquid passes; and a first discharge pipe provided separately from the first discharge pipe. and a second discharge pipe connected to the path switching valve, the path switching valve connecting either the first discharge pipe or the second discharge pipe to the drain pan.
  • the liquid discharged from the drain pan can pass through the first discharge pipe or the second discharge pipe after passing through the path switching valve. Therefore, the liquid can be discharged from the drain pan through two paths. Therefore, one of the two paths can be used for discharging washing water, and the discharging performance of washing water is improved.
  • FIG. 1 is a schematic diagram showing an example of a circuit configuration of an air conditioner according to Embodiment 1;
  • FIG. 2 is a perspective view showing an example of the appearance of the indoor unit of the air conditioner according to Embodiment 1.
  • FIG. 2 is a perspective view showing an example of the interior of the indoor unit of the air conditioner according to Embodiment 1.
  • FIG. 2 is a schematic diagram showing part of the interior of the indoor unit of the air conditioner according to Embodiment 1.
  • FIG. FIG. 2 is a schematic diagram showing an example of the structure of the path switching valve according to Embodiment 1;
  • FIG. 2 is a schematic diagram showing an example of the structure of the path switching valve according to Embodiment 1;
  • FIG. 1 is a schematic diagram showing an example of the structure of the path switching valve according to Embodiment 1;
  • FIG. 8 is a schematic diagram showing an example of the structure of a water level sensor and a path switching valve according to Embodiment 2;
  • FIG. 7 is a schematic diagram showing part of the interior of the indoor unit of the air conditioner according to Embodiment 2;
  • FIG. 8 is a functional block diagram showing an example of functions of a control device according to Embodiment 2;
  • 9 is a flow chart showing an example of operation when a water level sensor according to Embodiment 2 detects a value equal to or greater than a threshold;
  • an embodiment of an indoor unit of an air conditioner according to the present disclosure will be described below with reference to the drawings.
  • the present disclosure is not limited to the following embodiments, and various modifications can be made without departing from the gist of the present disclosure.
  • the present disclosure includes all combinations of configurations that can be combined among the configurations shown in the following embodiments.
  • the indoor units shown in the drawings are examples of the indoor units of the air conditioner of the present disclosure, and the indoor units shown in the drawings do not limit the applicable devices of the present disclosure.
  • terms representing directions for example, “up”, “down”, “right”, “left”, “front”, “back”, etc.
  • the same reference numerals denote the same or corresponding parts, which are common throughout the specification. In each drawing, the relative dimensional relationship, shape, etc. of each component may differ from the actual one.
  • the X direction indicates the horizontal direction of the indoor unit, and the arrow indicates the direction from right to left.
  • the Y direction indicates the front-to-rear direction of the indoor unit, and arrows indicate the direction from the front to the rear.
  • the Z direction indicates the vertical direction of the indoor unit, and an arrow indicates the upward direction.
  • FIG. 1 is a schematic diagram showing an example of a circuit configuration of an air conditioner 100 according to Embodiment 1.
  • the air conditioner 100 is a device that adjusts air in an indoor space in which the indoor unit 1 is arranged.
  • the indoor unit 1 is provided with an indoor heat exchanger 2 , an indoor fan 3 , an expansion section 8 , and a control device 40 .
  • the outdoor unit 111 is provided with a compressor 114 , a channel switching device 115 , an outdoor heat exchanger 112 , and an outdoor fan 113 .
  • the compressor 114, the flow switching device 115, the outdoor heat exchanger 112, the expansion section 8, and the indoor heat exchanger 2 are connected by refrigerant pipes 116 to form a refrigerant circuit through which the refrigerant flows.
  • air conditioning using a refrigeration cycle is performed by circulating the refrigerant in the refrigerant circuit.
  • the compressor 114 sucks the low-temperature, low-pressure refrigerant, compresses the sucked refrigerant, and discharges the high-temperature, high-pressure refrigerant.
  • the flow switching device 115 switches the direction in which the refrigerant flows in the refrigerant circuit.
  • the channel switching device 115 is, for example, a four-way valve.
  • the outdoor fan 113 sends the air in the space where the outdoor unit 111 is arranged to the outdoor heat exchanger 112 .
  • the outdoor heat exchanger 112 exchanges heat between the refrigerant and the air sent by the outdoor fan 113 .
  • the outdoor heat exchanger 112 acts as a condenser during cooling operation and acts as an evaporator during heating operation.
  • the indoor blower 3 sends the air in the space where the indoor unit 1 is arranged to the indoor heat exchanger 2 .
  • the indoor heat exchanger 2 exchanges heat between the refrigerant and the air sent by the indoor blower 3 .
  • the indoor heat exchanger 2 acts as an evaporator during cooling operation, and acts as a condenser during heating operation.
  • the expansion unit 8 is a pressure reducing valve or an expansion valve that reduces the pressure of the refrigerant to expand it.
  • the expansion part 8 is, for example, an electronic expansion valve whose opening is adjusted.
  • a controller 40 is provided in the air conditioner 100 .
  • the control device 40 includes, for example, a microcomputer, software executed on an arithmetic device such as a CPU (Central Processing Unit), hardware such as a circuit device that realizes various functions, and the like, and controls the operation of the entire air conditioner 100. Control.
  • the control device 40 controls the compressor frequency of the compressor 114, the opening degree of the expansion section 8, the rotation speeds (including ON/OFF) of the indoor fan 3 and the outdoor fan 113, and It controls switching of the channel switching device 115 and the like.
  • the control device 40 also controls switching of the path switching valve 20, which will be described later.
  • the controller 40 is provided in the indoor unit 1 in FIG. 1
  • the controller 40 may be provided in the outdoor unit 111 instead of the indoor unit 1 .
  • the control device 40 may be provided as a separate body from the indoor unit 1 and the outdoor unit 111 .
  • FIG. 2 is a perspective view showing an example of the appearance of the indoor unit 1 of the air conditioner 100 according to Embodiment 1.
  • FIG. 3 is a perspective view showing an example of the interior of the indoor unit 1 of the air conditioner 100 according to Embodiment 1.
  • FIG. 4 is a schematic diagram showing part of the interior of the indoor unit 1 of the air conditioner 100 according to Embodiment 1. As shown in FIG.
  • the indoor unit 1 is of a floor standing type, and includes a housing 1a that forms an outer shape.
  • a panel 6 provided with a large number of slits is attached to the housing 1a.
  • an indoor heat exchanger 2 Inside the housing 1a, as shown in FIG. 3, an indoor heat exchanger 2, an indoor fan 3, a filter 7, a drain pan 5, and a control box 4 having a control device 40 are accommodated.
  • 2 and 3 show the floor-standing type indoor unit 1, the indoor unit 1 is not limited to the floor-standing type.
  • the indoor unit 1 may be an indoor unit of an air conditioner provided with an indoor fan, an indoor heat exchanger, and a drain pan, and may be of a ceiling-embedded type, a ceiling-suspended type, a ducted type, or a wall-mounted type.
  • the indoor fan 3 has a fan motor 3a, a fan 3b, and a fan housing 3c.
  • the fan motor 3a rotates the fan 3b.
  • the fan 3b is, for example, a sirocco fan or a turbofan.
  • the fan housing 3c rotatably supports the fan 3b.
  • a filter 7 and an indoor heat exchanger 2 are arranged below the indoor fan 3 .
  • a filter 7 is provided between the panel 6 and the indoor heat exchanger 2 .
  • the filter 7 filters the air flowing in through the slits of the panel 6 and is provided so as to be combined with the indoor heat exchanger 2 .
  • By operating the indoor blower 3, the air in the space where the indoor unit 1 is arranged is sucked into the indoor unit 1 through the panel 6.
  • - ⁇ Air sucked into the interior of the indoor unit 1 flows into the indoor heat exchanger 2 after being filtered by the filter 7 .
  • a refrigerant pipe 116 (not shown) is connected to the indoor heat exchanger 2, and heat exchange is performed between the refrigerant flowing through the refrigerant pipe 116 and the filtered air.
  • a drain pan 5 is provided below the indoor heat exchanger 2 . Condensed water and dew condensation water are generated in the indoor heat exchanger 2 during operation of the air conditioner 100 .
  • the drain pan 5 stores such condensed water and dew condensation water that fall from the indoor heat exchanger 2 located above. In this specification, water such as condensed water and condensed water generated in the indoor heat exchanger 2 is referred to as drain water. A route through which drain water is discharged from the drain pan 5 will be described later.
  • a control box 4 is provided below the drain pan 5 .
  • a control device 40 is housed inside the control box 4 . Although the control box 4 is provided below the drain pan 5 in FIG. 3 , the control box 4 may be provided above the drain pan 5 or above the indoor heat exchanger 2 . Also, the control box 4 may be provided separately from the indoor unit 1 .
  • a path switching valve 20 is provided below the drain pan 5 .
  • the path switching valve 20 has a first opening 22 , a second opening 23 and a third opening 24 .
  • a drain pan 5 is connected to the first opening 22 . Drain water from the drain pan 5 flows into the path switching valve 20 through the first opening 22 .
  • a first discharge pipe 9 is connected to the second opening 23 .
  • the first discharge pipe 9 is, for example, a flexible drain hose.
  • the other end of the first discharge pipe 9 that is not connected to the second opening 23 is connected to the first discharge port 10 .
  • the first discharge port 10 is provided in the housing 1a and communicates the inside of the housing 1a with the outside of the housing 1a. Therefore, the first discharge pipe 9 communicates with the outside of the housing 1 a, that is, the outside of the indoor unit 1 through the first discharge port 10 .
  • a second discharge pipe 25 is connected to the third opening 24 .
  • the second discharge pipe 25 is shorter than the first discharge pipe 9, and the other end not connected to the third opening 24 is not connected to anything.
  • a flexible drain hose can be connected to the free end of the second discharge pipe 25 .
  • a storage tank capable of storing the liquid discharged from the second discharge pipe 25 can be connected to the end of the second discharge pipe 25 to which nothing is connected.
  • FIGS. 5 and 6 are schematic diagrams showing an example of the structure of the path switching valve 20 according to Embodiment 1.
  • the path switching valve 20 is a three-way valve having a valve body 21 .
  • the path switching valve 20 has a first path provided between a first opening 22 and a second opening 23 that allows the drain pan 5 and the first discharge pipe 9 to communicate with each other.
  • solid line and broken line arrows indicate paths in which the drain pan 5 and the first discharge pipe 9 are in communication.
  • the path switching valve 20 also has a second path provided between the first opening 22 and the third opening 24 that allows the drain pan 5 and the second discharge pipe 25 to communicate with each other.
  • solid line and broken line arrows indicate paths in which the drain pan 5 and the second discharge pipe 25 are in communication.
  • the valve body 21 is switched between a first state in which the first opening 22 and the second opening 23 are communicated and a second state in which the first opening 22 and the third opening 24 are communicated.
  • the path switching valve 20 connects the first path by setting the valve body 21 to the first state, and connects the second path by setting the valve body 21 to the second state.
  • the valve body 21 is set to the first state, and the first path is open. In the first state, there is no communication between the first opening 22 and the third opening 24, and the second path is blocked.
  • the valve body 21 is set to the second state, and the second path is open. In the second state, there is no communication between the first opening 22 and the second opening 23, and the first path is blocked.
  • discharge of drain water Next, discharge of drain water will be described with reference to FIG.
  • the valve body 21 of the path switching valve 20 is set to the first state, and the first path is communicated. Drain water stored in the drain pan 5 flows into the path switching valve 20 through the first opening 22 . Drain water that has flowed into the path switching valve 20 flows through the second opening 23 into the first discharge pipe 9 connected to the second opening 23 . The drain water that has flowed into the first discharge pipe 9 is discharged from the indoor unit 1 through the first discharge port 10 .
  • the valve body 21 of the path switching valve 20 is set to the second state.
  • the wash water that has washed the indoor heat exchanger 2 is stored in the drain pan 5 and then flows into the path switching valve 20 through the first opening 22 .
  • the wash water that has flowed into the path switching valve 20 flows through the third opening 24 and into the second discharge pipe 25 connected to the third opening 24 .
  • the wash water flowing into the second discharge pipe 25 is discharged from the second discharge pipe 25 . Therefore, when cleaning the indoor heat exchanger 2 , a drain hose is temporarily connected to the second discharge pipe 25 so that the cleaning water can be discharged to the outside of the indoor unit 1 .
  • a storage tank may be temporarily connected to the second discharge pipe 25 to recover the cleaning water.
  • the wash water discharged from the second discharge pipe 25 is discharged from the indoor unit 1 by a drain hose or a storage tank connected to the second discharge pipe 25 .
  • the means for discharging the wash water from the second discharge pipe 25 to the outside of the indoor unit 1 is not limited to the drain hose or the storage tank.
  • a drain hose and a storage tank may be combined, or a pipe may be used instead of the drain hose.
  • the channel cross-sectional area of the second discharge pipe 25 is larger than the channel cross-sectional area of the first discharge pipe 9 so that a large amount of washing water can pass through.
  • the diameter of the second discharge pipe 25 is larger than the diameter of the first discharge pipe 9, so the cross-sectional area of the second discharge pipe 25 is equal to that of the first discharge pipe 9 larger than the cross-sectional area of the flow path.
  • the path switching valve 20 can be switched manually or electrically. Further, the switching of the path switching valve 20 can be controlled by the control device 40 .
  • the path switching valve 20 is not limited to a three-way valve, and may be configured by combining two-way valves. Also, in this specification, when there is no need to distinguish between drain water and wash water, drain water and wash water are referred to as liquid.
  • the indoor unit 1 of the air-conditioning apparatus 100 of Embodiment 1 includes the housing 1a and the first discharge port provided in the housing 1a for communicating the inside of the housing 1a and the outside of the housing 1a. 10, an indoor heat exchanger 2 housed inside the housing 1a, and a drain pan 5 that is provided below the indoor heat exchanger 2 inside the housing 1a and receives liquid that drops from the indoor heat exchanger 2. and a route switching valve 20 through which the liquid discharged from the drain pan 5 passes inside the housing 1a, and a first discharge pipe provided between the route switching valve 20 and the first discharge port 10 through which the liquid passes. 9 and a second discharge pipe 25 provided separately from the first discharge pipe 9 and connected to the path switching valve 20 .
  • the path switching valve 20 allows one of the first discharge pipe 9 and the second discharge pipe 25 to communicate with the drain pan 5 .
  • the drain water generated in the indoor heat exchanger 2 can be discharged from the first discharge pipe 9, and the washing water used to wash the indoor heat exchanger 2 can be discharged from the second discharge pipe 25.
  • a cleaning agent such as an alkaline solvent may be used. Washing water containing an alkaline solvent or the like must sometimes be neutralized with a neutralizing agent before being discharged in order to prevent environmental pollution.
  • the wash water used to wash the indoor heat exchanger 2 can be discharged from the second discharge pipe 25, so that the wash water can be easily recovered and neutralized. Therefore, washing water dischargeability is improved.
  • the washing water used to wash the indoor heat exchanger 2 may contain substances such as solids, sludge, and oil. Therefore, when the cleaning water is discharged from the drain water discharge path, these substances may not be discharged, and the drain water discharge path may be blocked.
  • the washing water since the washing water can be discharged through a path different from that of the drain water, the washing water does not clog the drain water discharge path. Therefore, the washing water can be discharged without worrying about impairing the drainage performance of the drain water, so that the washing water can be easily drained. Therefore, washing water dischargeability is improved.
  • the channel cross-sectional area of the second discharge pipe 25 is larger than the channel cross-sectional area of the first discharge pipe 9 . According to this configuration, even if the washing water contains substances such as solid matter, sludge, oil, etc., the passage cross-sectional area of the second discharge pipe 25 is large, so that the discharge path of the washing water is blocked. can be prevented from becoming. In addition, since the flow passage cross-sectional area of the second discharge pipe 25 is large, a large amount of washing water can be discharged. Therefore, the ability to discharge cleaning water from the indoor heat exchanger 2 is further improved.
  • Embodiment 2 Next, the indoor unit 1 of the air conditioner 100 according to Embodiment 2 will be described.
  • the indoor unit 1 of the air conditioner 100 of Embodiment 2 differs from the indoor unit 1 of the air conditioner 100 of Embodiment 1 in that a water level sensor 12 is provided.
  • the configurations of the water level sensor 12 and the indoor unit 1 of the second embodiment will be described below, focusing on differences from the first embodiment. Also, descriptions of parts common to the first embodiment will be omitted.
  • FIG. 7 is a schematic diagram showing an example of structures of the water level sensor 12 and the path switching valve 20 according to the second embodiment.
  • FIG. 8 is a schematic diagram showing part of the interior of the indoor unit 1 of the air conditioner 100 according to Embodiment 2.
  • the water level sensor 12 may be provided between the drain pan 5 and the path switching valve 20 as shown in FIG. 7, or may be provided inside the drain pan 5 as shown in FIG.
  • the water level sensor 12 may be any sensor that can detect the state of the water level.
  • the water level sensor 12 is a non-contact, magnetic or laser type switch.
  • the water level sensor 12 may be a contact-type floating switch.
  • FIG. 8 shows the configuration of the indoor unit 1 when the indoor unit 1 is provided with the water level sensor 12 .
  • the water level sensor 12 is provided inside the drain pan 5 in FIG. 8
  • the water level sensor 12 may be provided between the drain pan 5 and the path switching valve 20 .
  • a second discharge port 30 is provided in the housing 1a.
  • the second outlet 30 communicates the inside of the housing 1a with the outside of the housing 1a.
  • a second outlet drain hose 31 is connected between the second outlet pipe 25 and the second outlet 30 . Therefore, the second discharge pipe 25 communicates with the outside of the housing 1 a, that is, the outside of the indoor unit 1 through the second discharge port 30 .
  • the wash water discharged from the second discharge pipe 25 is discharged from the indoor unit 1 through the second discharge port drain hose 31 and the second discharge port 30 .
  • FIG. 9 is a functional block diagram showing an example of functions of the control device 40 according to the second embodiment.
  • FIG. 10 is a flow chart showing an example of the operation when the water level sensor 12 according to Embodiment 2 detects a value equal to or greater than the threshold.
  • the controller 40 has a water level at which the drain pan 5 may overflow as a threshold.
  • the threshold does not have to be the water level at which the drain pan 5 may overflow, and the threshold may be a water level lower than the water level at which the drain pan 5 overflows.
  • the valve body 21 of the path switching valve 20 is set to the first state, and the first path communicates.
  • a state may occur in which the drain water cannot be discharged to the outside of the indoor unit 1 while the air conditioner 100 is in operation.
  • the first discharge pipe 9 is blocked and the drain water cannot be discharged from the indoor unit 1 .
  • the drain pan 5 may overflow.
  • FIG. 10 shows the operation of the control device 40 from the time when the value of the water level is notified from the water level sensor 12 to the control device 40 .
  • the control device 40 determines whether or not the water level sensor 12 has detected a value equal to or greater than the threshold (step ST1).
  • step ST1: YES the valve body 21 of the path switching valve 20 is switched to the second state, the second path is communicated (step ST2), and the process is performed. finish.
  • step ST1: NO the process ends without doing anything.
  • the second discharge port drain hose 31 is connected between the second discharge pipe 25 and the second discharge port 30 as described above.
  • the control device 40 switches the valve body 21 of the path switching valve 20 to the second state to open the second path. Therefore, the drain water of the drain pan 5 is discharged from the second discharge pipe 25 and discharged from the indoor unit 1 through the second discharge port drain hose 31 and the second discharge port 30 .
  • the indoor unit 1 of the air conditioner 100 according to Embodiment 2 described above includes the water level sensor 12 provided between the drain pan 5 and the path switching valve 20 . Therefore, it can be detected that the liquid is not discharged from the path switching valve 20 . Therefore, it is possible to detect in advance that the drain pan 5 may overflow.
  • the indoor unit 1 of the air conditioner 100 according to Embodiment 2 includes a water level sensor 12 provided in the drain pan 5 . Therefore, it can be detected that the liquid is not discharged from the drain pan 5 . Therefore, it is possible to detect in advance that the drain pan 5 may overflow.
  • the path switching valve 20 connects the second discharge pipe 25 to the drain pan 5 when the water level sensor 12 detects a value equal to or higher than the threshold. Therefore, the drain water is discharged from the second discharge pipe 25 when the drain pan 5 is likely to overflow. Therefore, overflow of the drain pan 5 can be automatically avoided.
  • the indoor unit 1 of the air conditioner 100 is not limited to the above-described Embodiment 1 and Embodiment 2, and is within the scope of the gist. Various modifications and applications are possible within.
  • the water level sensor 12 of the second embodiment may be provided in the indoor unit 1 shown in the first embodiment.
  • 1 indoor unit 1a housing, 2 indoor heat exchanger, 3 indoor blower, 3a fan motor, 3b fan, 3c fan housing, 4 control box, 5 drain pan, 6 panel, 7 filter, 8 expansion part, 9 first Discharge pipe, 10 first discharge port, 12 water level sensor, 20 path switching valve, 21 valve body, 22 first opening, 23 second opening, 24 third opening, 25 second discharge pipe, 30 second discharge port, 31 Second outlet drain hose, 40 control device, 100 air conditioner, 111 outdoor unit, 112 outdoor heat exchanger, 113 outdoor fan, 114 compressor, 115 flow switching device, 116 refrigerant piping.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
PCT/JP2021/023355 2021-06-21 2021-06-21 空気調和装置の室内機 WO2022269670A1 (ja)

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PCT/JP2021/023355 WO2022269670A1 (ja) 2021-06-21 2021-06-21 空気調和装置の室内機
JP2023529201A JPWO2022269670A1 (enrdf_load_stackoverflow) 2021-06-21 2021-06-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2023042126A (ja) * 2021-09-14 2023-03-27 株式会社コロナ 除湿機

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0310129U (enrdf_load_stackoverflow) * 1989-06-16 1991-01-30
JP2002130995A (ja) * 2000-10-26 2002-05-09 Matsushita Electric Ind Co Ltd 空気調和機

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010276218A (ja) * 2009-05-26 2010-12-09 Mitsubishi Electric Building Techno Service Co Ltd 空気調和機及びそのドレンポンプのドレン水吸引部の清掃方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0310129U (enrdf_load_stackoverflow) * 1989-06-16 1991-01-30
JP2002130995A (ja) * 2000-10-26 2002-05-09 Matsushita Electric Ind Co Ltd 空気調和機

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2023042126A (ja) * 2021-09-14 2023-03-27 株式会社コロナ 除湿機
JP7652668B2 (ja) 2021-09-14 2025-03-27 株式会社コロナ 除湿機

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