JP2022122323A - air conditioner - Google Patents

air conditioner Download PDF

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Publication number
JP2022122323A
JP2022122323A JP2021019460A JP2021019460A JP2022122323A JP 2022122323 A JP2022122323 A JP 2022122323A JP 2021019460 A JP2021019460 A JP 2021019460A JP 2021019460 A JP2021019460 A JP 2021019460A JP 2022122323 A JP2022122323 A JP 2022122323A
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Prior art keywords
air conditioner
flap
air
refrigerant
indoor unit
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Inventor
雅章 長井
Masaaki Nagai
一彦 丸本
Kazuhiko Marumoto
晃 鶸田
Akira Iwashida
健二 高市
Kenji Takaichi
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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Priority to JP2021019460A priority Critical patent/JP2022122323A/en
Priority to EP21203572.9A priority patent/EP4043804A1/en
Publication of JP2022122323A publication Critical patent/JP2022122323A/en
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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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52—Indication arrangements, e.g. displays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Fluid Mechanics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

To provide an air conditioner that does not form a combustible area directly below an indoor unit even if a refrigerant leaks when an air blowing fan is stopped during a thermo-off state of the indoor unit.SOLUTION: An air conditioner according to the present disclosure comprises a refrigeration cycle annularly connecting an indoor heat exchanger of an indoor unit, an outdoor heat exchanger of an outdoor unit, a compressor, and a throttle device via pipes, and using a combustible refrigerant as a refrigerant, and comprises an air blowing fan for blowing air indoors from a discharge port through the indoor heat exchanger, a flap for adjusting a wind direction from the discharge port, and a control device for controlling operation of the air blowing fan and the flap, and closing the flap when stopping the air blowing fan during operation of the air conditioner. This structure is formed, and thereby a high concentration of the combustible refrigerant can be restrained from leaking indoors and forming a combustible area by closing the flap if the combustible refrigerant leaks when the air blowing fan of the indoor unit is stopped.SELECTED DRAWING: Figure 1

Description

本発明は、プロパン（Ｒ２９０）、イソブタン（Ｒ６００ａ）、エタン（Ｒ１７０）等からなる可燃性冷媒を使用した冷凍サイクルから構成される空気調和機に関する。 The present invention relates to an air conditioner comprising a refrigeration cycle using a flammable refrigerant such as propane (R290), isobutane (R600a), ethane (R170), or the like.

特許文献１は、地球温暖化の抑制のため空気調和機の冷媒としてＧＷＰ（地球温暖化係数）が低い冷媒への転換が求められる状況下、ＧＷＰが低い冷媒として炭化水素のような可燃性冷媒を用い、遮断弁によって冷媒の流れを止め、火災の危険を回避する空気調和機を開示する。この空気調和機は、冷媒の漏れを検知するセンサを室内機の熱交換室および機械室に備え、室外機との間の冷媒の流れを遮断する遮断弁を室内機に備え、上記センサによって室内機の冷媒の漏れが検知されると、上記遮断弁によって冷媒の流れを止めて、火災の危険を回避するよう構成されている。 In Patent Document 1, in a situation where conversion to a refrigerant with a low GWP (global warming potential) is required as a refrigerant for air conditioners in order to suppress global warming, a combustible refrigerant such as a hydrocarbon is used as a refrigerant with a low GWP. and an isolation valve to stop the flow of refrigerant to avoid fire hazards. This air conditioner is equipped with sensors for detecting leakage of refrigerant in the heat exchange chamber and machine room of the indoor unit, and is equipped with a shutoff valve for shutting off the flow of refrigerant between the indoor unit and the outdoor unit. When a refrigerant leak is detected in the machine, the shut-off valve stops the flow of refrigerant to avoid a fire hazard.

特許第３７４４３３０号Patent No. 3744330

本開示は、室内機のサーモオフ中に送風ファンが停止してフラップが開いた状態になっている際に冷媒が漏洩しても室内機直下に可燃域を形成することのない空気調和機を提供する。 The present disclosure provides an air conditioner that does not form a flammable area directly under the indoor unit even if refrigerant leaks when the blower fan is stopped and the flap is opened while the indoor unit is thermo-off. do.

本開示における空気調和機は、室内機の室内熱交換器と、室外機の室外熱交換器、圧縮機、絞り装置とを配管を介して環状に接続し、冷媒として可燃性冷媒を用いた冷凍サイクルを有し、室内熱交換器を通過して吹出口から室内に送風する送風ファンと、吹出口からの風向きを調節するフラップと、送風ファンと前記フラップの動作を制御する制御装置を備え、空気調和機の運転中に送風ファンを停止させる際、フラップを閉じる制御装置を備える。 The air conditioner according to the present disclosure includes an indoor heat exchanger of an indoor unit, an outdoor heat exchanger of an outdoor unit, a compressor, and an expansion device that are annularly connected via piping, and a refrigeration unit that uses a flammable refrigerant as a refrigerant. A blower fan that has a cycle and passes through the indoor heat exchanger and blows air from the air outlet into the room, a flap that adjusts the direction of the air from the air outlet, and a control device that controls the operation of the fan and the flap, A control device is provided for closing the flap when stopping the blower fan during operation of the air conditioner.

本開示における空気調和機は、室内機の前記送風ファンが停止した際に可燃性冷媒が漏洩した場合、前記フラップを閉止することで、高濃度の可燃性冷媒が室内に漏れて可燃域を形成するのを抑制でき、漏洩時の安全性をより向上することができる。 In the air conditioner according to the present disclosure, when the flammable refrigerant leaks when the blower fan of the indoor unit stops, the flap is closed, so that high-concentration flammable refrigerant leaks into the room to form a flammable area. can be suppressed, and the safety at the time of leakage can be further improved.

本発明の実施の形態１における空気調和器の室内機の断面図Sectional view of the indoor unit of the air conditioner according to Embodiment 1 of the present invention 本発明の実施の形態２における空気調和器の室内機の断面図Sectional view of an indoor unit of an air conditioner according to Embodiment 2 of the present invention

第１の発明は、室内機の室内熱交換器と、室外機の室外熱交換器、圧縮機、絞り装置とを配管を介して環状に接続し、冷媒として可燃性冷媒を用いた冷凍サイクルを有する空気調和機において、前記室内熱交換器を通過して吹出口から室内に送風する送風ファンと、前記吹出口からの風向きを調節するフラップと、前記送風ファンと前記フラップの動作を制御する制御装置を備え、前記制御装置は、前記空気調和機の運転中に前記送風ファンを停止させる際、前記フラップを閉じることにより、室内機の送風ファンが停止した際に可燃性冷媒が漏洩した場合、フラップを閉止することで、高濃度の可燃性冷媒が室内に漏れて可燃域を形成するのを抑制できることになり、より漏洩時の安全性が向上できる。 A first invention provides a refrigeration cycle in which an indoor heat exchanger of an indoor unit and an outdoor heat exchanger, a compressor, and an expansion device of an outdoor unit are connected annularly via piping, and a flammable refrigerant is used as a refrigerant. In an air conditioner having a blower fan that passes through the indoor heat exchanger and blows air from the blower outlet into the room, a flap that adjusts the direction of the wind from the blower outlet, and a control that controls the operation of the blower fan and the flap a device, wherein the control device closes the flap when stopping the blower fan during operation of the air conditioner, so that if a flammable refrigerant leaks when the blower fan of the indoor unit is stopped, By closing the flap, it is possible to suppress the highly concentrated flammable refrigerant from leaking into the room and forming a flammable area, thereby further improving the safety at the time of leakage.

第２の発明は、特に、第１の発明の室内機は漏洩検知センサを備え、前記制御装置が前記漏洩検知センサの出力により前記可燃性冷媒が漏洩したと判断した際に、前記制御装置は前記送風ファンを動作させるとともに前記吹出口からの風向きが水平より上向きになるように前記フラップを制御することにより、漏洩検知センサが可燃性冷媒を検知した際にフラップを水平より上向きにさせることで、室内機の直下に可燃域が形成されるのを抑制し、可燃性冷媒を拡散することになり、より漏洩時の安全性が向上できる。 In a second invention, in particular, the indoor unit of the first invention includes a leakage detection sensor, and when the control device determines that the combustible refrigerant has leaked from the output of the leakage detection sensor, the control device By operating the blower fan and controlling the flap so that the air direction from the outlet is upward from the horizontal, the flap is made to be upward from the horizontal when the leak detection sensor detects the flammable refrigerant. , the formation of a combustible area directly under the indoor unit is suppressed, and the combustible refrigerant is diffused, so that the safety at the time of leakage can be further improved.

第３の発明は、特に、第１の発明の前記フラップは下向きに開閉する構造を有し、尚且つ、前記フラップを閉じた際に前記空気調和機の吹出口を完全に閉止する構造を備える。フラップが下向きに開閉する室内機は、フラップの先端が底面と接しているため、吹き出し口を完全に閉止できなければ、底面から高濃度の可燃性冷媒が漏洩する。閉止できるフラップの長さを備えることで可燃域を形成するのを抑制できることになり、より漏洩時の安全性が向上できる。 A third aspect of the invention is particularly provided with a structure in which the flap of the first aspect opens and closes downward and, when the flap is closed, completely closes the outlet of the air conditioner. . In an indoor unit with a flap that opens and closes downward, since the tip of the flap is in contact with the bottom surface, highly concentrated flammable refrigerant leaks from the bottom surface if the blowout port cannot be completely closed. By providing the length of the flap that can be closed, it is possible to suppress the formation of a flammable area, and the safety at the time of leakage can be further improved.

第４の発明は、特に、第１～第３の発明のいずれか１つにおいて、空気調和機の運転中にファンが停止しているとき、前記空気調和機の室内機のいずれかに前記空気調和機が運転中であることを示す表示部を有するもので、運転中のファン停止時であっても、たとえば前記室内機の前面パネルに運転中であることを示す表示器を備えることにより、運転中のファン停止時、フラップ閉止時であっても運転中である状態を使用者が確認することができ、漏洩時の安全対策による快適性の低下を防ぐことができる。 A fourth invention is particularly characterized in that, in any one of the first to third inventions, when the fan is stopped during operation of the air conditioner, the air is supplied to any one of the indoor units of the air conditioner. It has a display unit that indicates that the harmony machine is in operation, and even when the fan is stopped during operation, for example, by providing a display on the front panel of the indoor unit that indicates that it is in operation, Even when the fan is stopped or the flap is closed during operation, the user can confirm that the air conditioner is in operation, thereby preventing deterioration of comfort due to safety measures against leakage.

第５の発明は、特に、第１～第４の発明のいずれか１つにおいて、空気調和機の運転中にファンが停止しているとき、前記空気調和機の操作用リモコンに前記空気調和機が運転中であることを示すもので、ファン停止時であってもリモコンに運転中であることを示すことにより、使用者が運転状態を確認することができ、漏洩時の安全対策による快適性の低下を防ぐことができる。 In a fifth invention, particularly, in any one of the first to fourth inventions, when the fan is stopped during operation of the air conditioner, the remote control for operating the air conditioner is connected to the air conditioner. Even when the fan is stopped, the user can check the operating status by indicating that the fan is operating on the remote controller, and the safety measures in the event of a leak provide comfort. can prevent a decline in

第６の発明は、特に、第１～第４の発明のいずれか１つにおいて、空気調和機の運転中に前記ファンが停止しているとき、リモコン以外の通信端末に前記空気調和機が運転中であることを表示させることにより、運転中のファン停止時、フラップ閉止時であってもたとえば個人通信端末に運転中であることを表示させ、使用者が運転状態を確認することができ、漏洩時の安全対策による快適性の低下を防ぐことができる。 In a sixth invention, particularly, in any one of the first to fourth inventions, when the fan is stopped during operation of the air conditioner, a communication terminal other than a remote control is used to operate the air conditioner. By displaying that it is in operation, even when the fan is stopped and the flap is closed during operation, the fact that the vehicle is in operation can be displayed on the personal communication terminal, for example, so that the user can confirm the operating state. It is possible to prevent deterioration of comfort due to safety measures in case of leakage.

以下、本発明の実施の形態について、図面を参照しながら説明する。但し、必要以上に詳細な説明は省略する場合がある。例えば、既によく知られた事項の詳細説明、または、実質的に同一の構成に対する重複説明を省略する場合がある。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, more detailed description than necessary may be omitted. For example, detailed descriptions of well-known matters or redundant descriptions of substantially the same configurations may be omitted.

なお、添付図面および以下の説明は、当業者が本開示を十分に理解するために提供されるのであって、これらにより特許請求の範囲に記載の主題を限定することを意図していない。 It should be noted that the accompanying drawings and the following description are provided to allow those skilled in the art to fully understand the present disclosure and are not intended to limit the claimed subject matter thereby.

（実施の形態１）
図１は、本発明の第１の実施の形態における空気調和機の室内機の断面を示すものである。 (Embodiment 1)
FIG. 1 shows a cross section of an indoor unit of an air conditioner according to a first embodiment of the present invention.

可燃性を有する冷媒ガス、例えばプロパン（Ｒ２９０）、イソブタン（Ｒ６００ａ）、エタン（Ｒ１７０）等からなる可燃性冷媒が充填された空気調和機である。室内機１００は室内機熱交換器１０１とクロスフローファン１０５を備え、吸込口１０２から室内熱交換器１０１とクロスフローファン１０５を通過して吹出口１０３から吹き出される。吹出し方向を調節するために吹出口１０３の近傍にフラップ１０４を備える。 The air conditioner is filled with a combustible refrigerant gas such as propane (R290), isobutane (R600a), ethane (R170), or the like. The indoor unit 100 includes an indoor unit heat exchanger 101 and a cross-flow fan 105 , and the air passes through the indoor heat exchanger 101 and the cross-flow fan 105 from the suction port 102 and is blown out from the outlet 103 . A flap 104 is provided near the outlet 103 to adjust the blowing direction.

室内機１００はサーモオフ状態の場合には運転中であっても、クロスフローファン１０５を停止させる。その際に同時にフラップ１０４を閉止することにより、室内機１００のクロスフローファン１０５が停止した際に可燃性冷媒が漏洩した場合、フラップ１０４を閉止することで、高濃度の可燃性冷媒が室内に漏れて可燃域を形成するのを抑制できることになる。 When the indoor unit 100 is in the thermo-off state, the cross flow fan 105 is stopped even during operation. At that time, by closing the flap 104 at the same time, if the combustible refrigerant leaks when the cross flow fan 105 of the indoor unit 100 stops, the flap 104 is closed, so that the highly concentrated combustible refrigerant is released into the room. Leakage and formation of a combustible area can be suppressed.

また、クロスフローファン１０５が停止している状態で、常にフラップ１０４が閉止しているので、室内機１００から漏洩した可燃性冷媒は、室内機１００内に滞留し、漏洩検知センサ１０７で検知されるまでの時間も短縮される。 In addition, since the flap 104 is always closed while the cross-flow fan 105 is stopped, the flammable refrigerant leaked from the indoor unit 100 stays in the indoor unit 100 and is detected by the leakage detection sensor 107. It also shortens the time to

そして、漏洩検知センサ１０７で可燃性冷媒を検知した際にクロスフローファン１０５を運転させるとともにフラップ１０４向きを水平より上向きにすることにより、可燃性冷媒を拡散することになり、室内機１００の直下に可燃域が形成されるのを抑制する。 Then, when the leakage detection sensor 107 detects the combustible refrigerant, the cross flow fan 105 is operated and the flap 104 is oriented upward from the horizontal, thereby diffusing the combustible refrigerant directly below the indoor unit 100. Suppresses the formation of a flammable region in

したがって、より漏洩時の安全性が向上できる。 Therefore, it is possible to further improve the safety against leakage.

なお、ファン停止時であっても室内機のパネルに運転中であることを示すために、パネル表面に表示器を備えたり、リモコンに運転中であることを示したり、個人通信機端末に運転中であることを通信することにより、運転中のファン停止時、フラップ閉止時であっても、運転状態を確認することができるようになり、漏洩時の安全対策による快適性の低下を防ぐことができる。 In order to indicate that the indoor unit is operating even when the fan is stopped, an indicator should be provided on the panel surface of the indoor unit, the remote control should indicate that it is operating, and the personal communication terminal should indicate that it is operating. By communicating that it is inside, it becomes possible to check the operating status even when the fan is stopped or the flap is closed, preventing a decrease in comfort due to safety measures in the event of a leak. can be done.

（実施の形態２）
図２は、本発明の第２の実施の形態における空気調和機の室内機の断面を示すものである。 (Embodiment 2)
FIG. 2 shows a cross section of an indoor unit of an air conditioner according to a second embodiment of the present invention.

実施の形態１の室外機と異なり下向きに開閉する下向きフラップ１０８を備え室内機１００において、下向きフラップ１０８は閉止した際に送風ファン１０５の吹き出し口１０３を完全に閉止する長さを備えることにより、フラップが下向きに開閉する室内機は、フラップの先端が底面と接しているため、吹き出し口を完全に閉止できなければ、底面から高濃度の可燃性冷媒が漏洩する。閉止できるフラップの長さを備えることで可燃域を形成するのを抑制できることになり、より漏洩時の安全性が向上できる。 Unlike the outdoor unit of the first embodiment, the indoor unit 100 has a downward flap 108 that opens and closes downward. In an indoor unit with a flap that opens and closes downward, since the tip of the flap is in contact with the bottom surface, highly concentrated flammable refrigerant leaks from the bottom surface if the blowout port cannot be completely closed. By providing the length of the flap that can be closed, it is possible to suppress the formation of a flammable region, and the safety at the time of leakage can be further improved.

本明細書に開示された技術は、空気調和機または冷凍機器などの可燃性冷媒が充填された機器にも応用できる。 The technology disclosed in this specification can also be applied to equipment filled with combustible refrigerant, such as air conditioners and refrigeration equipment.

１００ 室内機
１０１ 室内熱交換器
１０２ 吸込口
１０３ 吹出口
１０４ フラップ
１０５ クロスフローファン
１０６ 壁面
１０７ 漏洩検知センサ 100 indoor unit 101 indoor heat exchanger 102 suction port 103 outlet port 104 flap 105 cross flow fan 106 wall surface 107 leakage detection sensor

Claims (6)

室内機の室内熱交換器と、室外機の室外熱交換器、圧縮機、絞り装置とを配管を介して環状に接続し、冷媒として可燃性冷媒を用いた冷凍サイクルを有する空気調和機において、前記室内熱交換器を通過して吹出口から室内に送風する送風ファンと、前記吹出口からの風向きを調節するフラップと、前記送風ファンと前記フラップの動作を制御する制御装置を備え、前記制御装置は、前記空気調和機の運転中に前記送風ファンを停止させる際、前記フラップを閉じることを特徴とする空気調和機。 In an air conditioner having a refrigeration cycle in which an indoor heat exchanger of an indoor unit and an outdoor heat exchanger, a compressor, and a throttle device of an outdoor unit are annularly connected via piping and a flammable refrigerant is used as a refrigerant, A blower fan that passes through the indoor heat exchanger and blows air into the room from an air outlet, a flap that adjusts the direction of the air from the air outlet, and a control device that controls the operation of the blower fan and the flap. An air conditioner, wherein the device closes the flap when stopping the blower fan during operation of the air conditioner. 前記室内機は漏洩検知センサを備え、前記制御装置が前記漏洩検知センサの出力により前記可燃性冷媒が漏洩したと判断した際に、前記制御装置は前記送風ファンを動作させるとともに前記吹出口からの風向きが水平より上向きになるように前記フラップを制御することを特徴する請求項１に記載の空気調和機。 The indoor unit includes a leakage detection sensor, and when the control device determines that the combustible refrigerant has leaked from the output of the leakage detection sensor, the control device operates the blower fan and discharges air from the outlet. 2. The air conditioner according to claim 1, wherein the flap is controlled so that the wind direction is above the horizontal. 前記フラップは下向きに開閉する構造を有し、尚且つ、前記フラップを閉じた際に前記空気調和機の吹出口を完全に閉止する構造を備えることを特徴とする請求項１に記載の空気調和機。 2. The air conditioner according to claim 1, wherein the flap has a structure that opens and closes downward, and has a structure that completely closes the outlet of the air conditioner when the flap is closed. machine. 前記空気調和機の運転中に前記ファンが停止しているとき、前記空気調和機の室内機のいずれかに前記空気調和機が運転中であることを示す表示部を有することを特徴する請求項１～３に記載の空気調和機。 2. A display unit for indicating that the air conditioner is in operation on one of the indoor units of the air conditioner when the fan is stopped while the air conditioner is in operation. The air conditioner according to 1 to 3. 前記空気調和機の運転中に前記ファンが停止しているとき、前記空気調和機の操作用リモコンに前記空気調和機が運転中であることを示すことを特徴する請求項１～４に記載の空気調和機。 5. The apparatus according to claim 1, wherein when the fan is stopped during operation of the air conditioner, a remote controller for operating the air conditioner indicates that the air conditioner is in operation. Air conditioner. 前記空気調和機の運転中に前記ファンが停止しているとき、前記リモコン以外の通信端末に前記空気調和機が運転中であることを表示させることを特徴する請求項１～４に記載の空気調和機。 The air conditioner according to any one of claims 1 to 4, wherein when the fan is stopped during operation of the air conditioner, a communication terminal other than the remote controller displays that the air conditioner is in operation. harmony machine.
JP2021019460A 2021-02-10 2021-02-10 air conditioner Pending JP2022122323A (en)

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JP3744330B2 (en) 2000-09-26 2006-02-08 ダイキン工業株式会社 Air conditioner indoor unit
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