WO2021032053A1 - Climatiseur et son procédé de commande, et support d'informations - Google Patents

Climatiseur et son procédé de commande, et support d'informations Download PDF

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Publication number
WO2021032053A1
WO2021032053A1 PCT/CN2020/109552 CN2020109552W WO2021032053A1 WO 2021032053 A1 WO2021032053 A1 WO 2021032053A1 CN 2020109552 W CN2020109552 W CN 2020109552W WO 2021032053 A1 WO2021032053 A1 WO 2021032053A1
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WO
WIPO (PCT)
Prior art keywords
air conditioner
refrigerant
heat exchange
indoor unit
outdoor unit
Prior art date
Application number
PCT/CN2020/109552
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English (en)
Chinese (zh)
Inventor
罗祖春
柯慧
Original Assignee
青岛海尔空调器有限总公司
海尔智家股份有限公司
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Application filed by 青岛海尔空调器有限总公司, 海尔智家股份有限公司 filed Critical 青岛海尔空调器有限总公司
Publication of WO2021032053A1 publication Critical patent/WO2021032053A1/fr

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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
    • 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
    • F24F11/56—Remote control
    • F24F11/58—Remote control using Internet communication
    • 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
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves

Definitions

  • the invention relates to the technical field of refrigeration equipment, in particular to an air conditioner, a control method and a storage medium.
  • the air conditioner is a common temperature adjustment device, which uses the refrigerant flowing in the heat exchange pipeline to achieve temperature adjustment.
  • Air conditioners generally have an indoor unit and an outdoor unit. When the air conditioner is in cooling mode, the refrigerant absorbs heat at the heat exchanger of the indoor unit and releases heat at the heat exchanger of the outdoor unit, thereby bringing the indoor heat to outdoor.
  • the air conditioner When the air conditioner has processing defects or the service life exceeds the predetermined life, the problem of refrigerant leakage will occur.
  • the refrigerant leaked from the air conditioner is a flammable refrigerant, if corresponding measures are not taken in time, the leaked refrigerant poses a greater safety hazard. In severe cases, it may cause a fire and cause casualties.
  • An object of the present invention is to provide an air conditioner, control method and storage medium with high safety performance.
  • the present invention provides an air conditioner, including an indoor unit and an outdoor unit, the refrigerant of the air conditioner is a flammable refrigerant, and the air conditioner further includes:
  • the sensor is arranged in the indoor unit of the air conditioner to monitor whether the combustible refrigerant in the indoor unit leaks, and is configured to generate a leakage signal when the monitored combustible refrigerant leaks in the indoor unit;
  • the Wi-Fi module is configured to communicate with the user's mobile device, and when the sensor generates a leakage signal, the leakage signal is converted into an alarm signal, and the alarm signal is wirelessly sent to the mobile device.
  • the air conditioner also includes:
  • the alarm is set in the indoor unit and configured to give an alarm when the sensor generates a leakage signal.
  • the alarm is a buzzer.
  • the air conditioner also includes:
  • the driving device is arranged in the outdoor unit and used to drive the flow of the combustible refrigerant in the heat exchange pipeline of the air conditioner;
  • the storage container is set in the outdoor unit and connected with the heat exchange pipeline;
  • the driving device is configured to guide the combustible refrigerant in the heat exchange pipeline into the storage container for sealed storage when the sensor generates a leakage signal.
  • the air conditioner also includes:
  • the first valve is arranged in the outdoor unit, connected to the heat exchange pipeline, and configured to prevent the flammable refrigerant in the heat exchange pipeline of the outdoor unit from flowing into the heat exchange pipeline in the indoor unit;
  • the second valve is arranged in the outdoor unit, connected to the heat exchange pipeline, and configured to prevent the combustible refrigerant in the heat exchange pipeline of the indoor unit from flowing into the heat exchange pipeline in the outdoor unit;
  • the driving device is a compressor of an air conditioner
  • the storage container is a pipe section between the first valve and the second valve of the heat exchange pipeline of the compressor and the outdoor unit.
  • the air conditioner also includes:
  • the vacuum tank is set in the outdoor unit, communicates with the heat exchange pipeline of the air conditioner, and has a closed state and a conducting state;
  • the vacuum tank is configured to be in a closed state when the sensor does not detect a flammable refrigerant leak, and is in a conductive state when the sensor generates a leakage signal, so that the flammable refrigerant in the heat exchange pipeline is sucked into the vacuum tank for sealed storage.
  • the senor is a concentration sensor, and is configured to generate a leakage signal when it senses that the concentration of the surrounding combustible refrigerant exceeds a preset concentration threshold.
  • the second aspect of the present invention also provides a control method for any one of the above-mentioned air conditioners, including:
  • the leakage signal When a leakage signal is generated, the leakage signal is converted into an alarm signal, and the Wi-Fi module is used to wirelessly send the alarm signal to the mobile device.
  • the method also includes:
  • the flammable refrigerant in the heat exchange pipeline of the air conditioner is guided to a storage container located in the outdoor unit for sealed storage.
  • the third aspect of the present invention also provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the steps of any one of the above methods are realized.
  • the air conditioner in the present invention uses a sensor to monitor whether the combustible refrigerant in the indoor unit of the air conditioner is leaking.
  • the combustible refrigerant uses the Wi-Fi module communicatively connected with the user's mobile device to send an alarm signal to the user's mobile device , Enabling users to take corresponding preventive measures in time, effectively avoiding serious injuries caused by the leakage of flammable refrigerants in air conditioners.
  • Figure 1 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention.
  • FIG. 2 is a structural block diagram of an air conditioner according to an embodiment of the present invention.
  • Fig. 3 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention.
  • the air conditioner 100 includes an indoor unit 110 and an outdoor unit 120.
  • the indoor unit 110 is installed indoors, the outdoor unit 120 is installed outdoors, and the indoor unit 110 is connected to
  • the outdoor unit 120 communicates with a heat exchange pipe 130, and a refrigerant flows in the heat exchange pipe 130.
  • the refrigerant forms a circulation in the heat exchange pipe 130 from indoor to outdoor and then from outdoor to indoor.
  • the air conditioner 100 further includes a sensor 111 and a Wi-Fi module 112.
  • the sensor 111 is provided in the indoor unit 110 of the air conditioner 100 to monitor whether the combustible refrigerant in the indoor unit 110 leaks, and is configured to generate a leakage signal when the detected combustible refrigerant in the indoor unit 110 leaks.
  • the sensor 111 may specifically be a concentration sensor 111.
  • the concentration sensor 111 may be installed in the indoor unit 110 of the air conditioner 100 to monitor whether the refrigerant leaks into the indoor unit 110 .
  • the concentration sensor 111 can be installed at the leak-prone pipe interface of the heat exchanger of the indoor unit 110 (the evaporator in the air-conditioning cooling mode, and the condenser in the heating mode), such as the elbow of the heat exchanger of the indoor unit 110 position.
  • the Wi-Fi module 112 is configured to be communicatively connected with the user's mobile device, and when the sensor 111 generates a leakage signal, it converts the leakage signal into an alarm signal, and wirelessly sends the alarm signal to the mobile device.
  • the user can take corresponding preventive measures according to the received alarm signal, thereby reducing accidents caused by the leakage of flammable refrigerant.
  • the air conditioner 100 may further include an alarm 113.
  • the alarm 113 is installed in the indoor unit 110 and configured to give an alarm when the sensor 111 generates a leakage signal. When the user is active indoors, he notices the alarm of the alarm 113 and can immediately take corresponding preventive measures.
  • the alarm of the alarm 113 may be a sound alarm or a light alarm. Specifically, the alarm 113 may be a buzzer, and alarms by buzzing.
  • the air conditioner 100 can also reduce the safety risk by reducing the leakage of the flammable refrigerant.
  • the air conditioner 100 may further include a driving device and a storage container 123.
  • the driving device is installed in the outdoor unit 120 and used to drive the flow of the combustible refrigerant in the heat exchange pipe 130 of the air conditioner 100.
  • the storage container 123 is installed in the outdoor unit 120 and communicates with the heat exchange pipe 130 of the air conditioner 100.
  • the driving device is configured to guide the combustible refrigerant in the heat exchange pipe 130 into the storage container 123 for sealed storage when the sensor 111 generates a leakage signal. That is, after the air conditioner 100 obtains the leakage signal, the air conditioner 100 can stop the normal working process and perform the step of recovering the flammable refrigerant. At this time, the flammable refrigerant in the air conditioner 100 stops circulating, and the driving device guides all the flammable refrigerants to the storage container 123 of the outdoor unit 120, and after directing all the flammable refrigerants to the storage container 123, the refrigerant is Keep sealed. When the maintenance personnel repair the air conditioner 100, the stored refrigerant can be reused, which reduces the maintenance cost. In addition, the step of recovering the flammable refrigerant can effectively prevent the flammable refrigerant from continuing to leak, avoid the potential safety hazards caused by the flammable refrigerant leaking, and improve the safety performance of the air conditioner 100.
  • the air conditioner 100 when the flammable refrigerant in the air conditioner 100 leaks, only the flammable refrigerant in the heat exchange pipe is recovered.
  • a fan can be used to blow it away to prevent the flammable refrigerant from reaching Burning concentration. Therefore, after the air conditioner 100 monitors the leakage of the flammable refrigerant in the indoor unit 110, the power of the fan in the indoor unit 110 can be adjusted to the maximum, so that the flammable refrigerant leaking in the indoor unit 110 is blown away, and the leaked flammable refrigerant is reduced. Risk of refrigerant combustion.
  • the air conditioner 100 When the air conditioner 100 detects the leakage of flammable refrigerant, it can immediately stop the circulating flow of the refrigerant in the heat exchange pipe 130, so that all refrigerants flow in the direction of the storage container 123, that is, it may happen that part of the refrigerant is still in accordance with the The original flow path flows, and another part of the refrigerant will flow in the opposite direction of the original flow path.
  • the storage container 123 is installed in the outdoor unit 120, and the storage container 123 is closed when the air conditioner 100 is working normally, and the air conditioner 100 is turned on after a leak signal is generated.
  • the storage container 123 is in communication with the heat exchange pipeline 130, so that the intercoolant in the heat exchange pipeline 130 is guided to the storage container 123 when leakage occurs.
  • the power source of the refrigerant flow may be the compressor 124 (that is, the driving device may be the compressor 124), or may be other pre-installed driving devices.
  • the power source of the refrigerant is the compressor 124, since the compressor 124 can only allow the refrigerant to flow in the same flow path, in an embodiment, the first valve 121 and the second valve 121 may be provided on the heat exchange pipe 130. Valve 122.
  • the first valve 121 and the second valve 122 are both set in the outdoor unit 120, and when the first valve 121 is closed, the refrigerant in the heat exchange pipe 130 of the outdoor unit 120 cannot flow to the indoor unit 110, and when the second valve 122 is closed, the indoor unit The refrigerant in the heat exchange pipe 130 of 110 cannot flow to the outdoor unit 120. In this way, when the air conditioner 100 receives the leakage signal, the compressor 124 can continue to work to provide power to recover the refrigerant. At this time, the first valve 121 is closed to prevent the refrigerant in the heat exchange pipe 130 of the outdoor unit 120 from flowing into the indoor unit 110.
  • the refrigerant in the heat exchange pipe 130 of the indoor unit 110 is guided to the outdoor unit 120 by the suction force generated by the compressor 124.
  • the second valve 122 can be closed and the compressor 124 can be closed.
  • the second valve 122 can prevent the refrigerant in the outdoor unit 120 from flowing back to the indoor unit 110.
  • the refrigerant is stored in the liquid storage tank 1241 in the outdoor unit 120 and the heat exchange pipe 130 in the outdoor unit 120 (that is, the liquid storage tank 1241 and the heat exchange pipe 130 in the outdoor unit 120). This is the storage container 123).
  • the first valve 121 and the second valve 122 are the arrangement positions of the air conditioner 100 in the cooling mode.
  • the positions of the first valve 121 and the second valve 122 are exchanged. Therefore, the above-mentioned names of "first valve 121" and "second valve 122" are only the names of components that perform corresponding functions.
  • the valves arranged in the outdoor unit 120 and capable of preventing the refrigerant from flowing from the outdoor unit 120 into the indoor unit 110 can be referred to as the first valve 121.
  • the valves arranged in the outdoor unit 120 and capable of preventing the refrigerant from flowing into the outdoor unit 120 from the indoor unit 110 are all It may be referred to as the second valve 122.
  • the power of the compressor 124 can be adjusted to a preset power, specifically, the power of the compressor 124 can be adjusted to its maximum operating power , So that the refrigerant is quickly recovered.
  • the maximum operating power mentioned here may not be the rated maximum operating power of the compressor 124. Since the compressor 124 can exceed the rated operating power in a short period of time, and the refrigerant recovery time is short, even if the compressor 124 operates in a refrigerant recovery state that exceeds the rated maximum operating power, it will not be damaged.
  • Recovering the refrigerant at the fastest speed allows the compressor 124 to perform refrigerant recovery work at a maximum operating power exceeding the rating.
  • the maximum operating power needs to be selected according to the time of refrigerant recovery. In the experimental state, the maximum operating power that the compressor 124 can withstand within a predetermined time (the time when the refrigerant needs to be fully recovered) can be found, and used as refrigeration The maximum operating power of the compressor 124 during the agent recovery process.
  • a vacuum tank (not shown in the figure) may also be provided in the outdoor unit 120, and the vacuum tank and the air conditioner 100 The heat exchange pipeline 130 is connected, and the vacuum tank is closed under the normal condition of the air conditioner.
  • the vacuum tank can be opened immediately, so that the refrigerant in the heat exchange pipe 130 is immediately sucked into the vacuum tank.
  • the power source for refrigerant flow is the negative pressure in the vacuum tube, and the storage container 123 is the vacuum tank.
  • the complete recovery refers to whether the total amount of recovered refrigerant is the designed recovery amount, which is lower than the heat exchange pipeline 130).
  • the pressure sensor 111 may be used to monitor the amount of refrigerant recovered.
  • the heat exchange pipe 130 of the air conditioner 100 includes a return pipe 131, and the refrigerant of the indoor unit 110 flows to the storage container 123 via the return pipe 131.
  • the return pipe 131 is not fixed. For example, in the cooling mode and heating mode of the air conditioner 100, since the flow direction of the refrigerant in the air conditioner 100 changes, the position of the return pipe 131 also changes, and the pressure sensor 111 can be multiple And set them in all possible return lines mentioned above.
  • the pressure sensor 111 is used to monitor the pressure value in the return pipe 131, and generate a leakage signal when the monitored pressure value is lower than the preset first pressure threshold value, and when the monitored pressure value is lower than the preset second pressure threshold value By default, the refrigerant has been recovered and a complete recovery signal is generated.
  • the second pressure threshold is lower than the first pressure threshold
  • the first pressure threshold is lower than the pressure in the heat exchange pipe 130 when the air conditioner 100 is working normally. That is, when the pressure value in the return pipe monitored by the pressure sensor 111 is lower than the first pressure threshold, the refrigerant pressure in the heat exchange pipe 130 is considered to be lower than the normal operating pressure value, which conforms to the characteristics of refrigerant leaking into the room.
  • a leakage signal can be generated at this time.
  • the air conditioner 100 recovers the refrigerant after receiving the leakage signal.
  • the pressure value in the return pipe 131 gradually decreases.
  • the pressure sensor 111 generates a complete recovery signal.
  • the first pressure threshold and the second pressure threshold need to be based on the working conditions of the air conditioner 100 Change and change.
  • the working condition of the air conditioner 100 is fixed, the actual values of the first pressure threshold and the second pressure threshold are fixed.
  • the values of the first pressure threshold and the second pressure threshold are different.
  • the relative magnitude relationship between the pressure value in the heat exchange pipe 130, the first pressure threshold value and the second pressure threshold value does not change during the normal operation of the air conditioner 100.
  • the second aspect of the present invention also provides a control method for the air conditioner 100 of any of the above embodiments.
  • the method includes the following steps:
  • S102 monitor whether the combustible refrigerant of the indoor unit 110 leaks, and generate a leakage signal when the combustible refrigerant leaks;
  • the leakage signal is generated, the leakage signal is converted into an alarm signal, and the Wi-Fi module 112 is used to wirelessly send the alarm signal to the mobile device.
  • the sensor 111 is used to monitor whether the flammable refrigerant in the indoor unit 110 of the air conditioner is leaking, and when the flammable refrigerant is found to be leaking, the Wi-Fi module 112 communicatively connected with the user's mobile device is used to send an alarm signal to the user's mobile device , Enabling users to take corresponding preventive measures in time, effectively avoiding serious injuries caused by the leakage of flammable refrigerants in air conditioners.
  • the air conditioner 100 can also reduce the safety risk by reducing the leakage of the flammable refrigerant. Further, the method in this embodiment may further include:
  • the flammable refrigerant in the heat exchange pipe 130 of the air conditioner 100 is guided to the storage container 123 of the outdoor unit 120 for sealed storage.
  • the step of recovering the flammable refrigerant can effectively prevent the flammable refrigerant from continuing to leak, avoid potential safety hazards caused by the flammable refrigerant leaking, and improve the safety performance of the air conditioner 100.
  • the third aspect of the present invention also provides a computer-readable storage medium on which a computer program is stored, characterized in that, when the program is executed by a processor, the steps of any one of the above methods are implemented.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

La présente invention concerne un climatiseur et un procédé de commande associé, et un support d'informations. Le climatiseur comprend une unité intérieure et une unité extérieure, un fluide frigorigène du climatiseur est un fluide frigorigène inflammable, et le climatiseur comprend en outre : un capteur agencé dans l'unité intérieure du climatiseur, utilisé pour surveiller la présence de fuites de fluide frigorigène inflammable dans l'unité intérieure, et conçu pour produire un signal de fuite lors de la présence de fuites de fluide frigorigène inflammable dans l'unité intérieure ; et un module Wi-Fi conçu pour être connecté en communication avec un dispositif mobile d'un utilisateur, pour convertir le signal de fuite en un signal d'alarme après la production du signal de fuite par le capteur, et pour émettre sans fil le signal d'alarme au dispositif mobile. Le climatiseur selon la présente invention utilise le capteur pour surveiller la présence de fuites du fluide frigorigène inflammable dans l'unité intérieure du climatiseur ; et utilise, lors de la détermination de fuites de fluide frigorigène inflammable, le module Wi-Fi connecté en communication avec le dispositif mobile de l'utilisateur pour envoyer un signal d'alarme au dispositif mobile de l'utilisateur, de sorte que l'utilisateur puisse prendre les mesures correspondantes de manière opportune, évitant ainsi efficacement des lésions graves provoquées par les fuites du fluide frigorigène inflammable.
PCT/CN2020/109552 2019-08-19 2020-08-17 Climatiseur et son procédé de commande, et support d'informations WO2021032053A1 (fr)

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CN201910765861.1 2019-08-19
CN201910765861.1A CN110486884A (zh) 2019-08-19 2019-08-19 一种空调器、控制方法及储存介质

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CN110486884A (zh) * 2019-08-19 2019-11-22 青岛海尔空调器有限总公司 一种空调器、控制方法及储存介质
CN110469951A (zh) * 2019-08-19 2019-11-19 青岛海尔空调器有限总公司 一种空调器的控制方法、储存介质及空调器
CN113757794A (zh) * 2020-06-05 2021-12-07 宁波奥克斯电气股份有限公司 一种可燃制冷剂空调及其控制方法
CN115164383A (zh) * 2022-07-08 2022-10-11 重庆海尔空调器有限公司 用于空调的安全预警方法及装置、空调、存储介质
CN117368409A (zh) * 2023-09-21 2024-01-09 广州海关技术中心 可燃制冷剂传感器可靠性的检测方法及设备

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CN109751709B (zh) * 2018-11-30 2021-04-20 青岛海尔空调器有限总公司 一种制冷设备
CN110044033A (zh) * 2019-04-29 2019-07-23 广东美的制冷设备有限公司 空调的制冷剂泄漏检测方法、系统及空调

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CN107062560A (zh) * 2017-05-26 2017-08-18 广东美的制冷设备有限公司 空调器以及空调器的冷媒泄漏保护装置和方法
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