WO2022017546A1 - Climatiseur et procédé de commande associé - Google Patents

Climatiseur et procédé de commande associé Download PDF

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Publication number
WO2022017546A1
WO2022017546A1 PCT/CN2021/118907 CN2021118907W WO2022017546A1 WO 2022017546 A1 WO2022017546 A1 WO 2022017546A1 CN 2021118907 W CN2021118907 W CN 2021118907W WO 2022017546 A1 WO2022017546 A1 WO 2022017546A1
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WO
WIPO (PCT)
Prior art keywords
temperature
coil
air conditioner
control parameter
period
Prior art date
Application number
PCT/CN2021/118907
Other languages
English (en)
Chinese (zh)
Inventor
孙超
安超
刘德帅
李志青
郭成才
熊长友
Original Assignee
青岛海尔空调电子有限公司
青岛海尔空调器有限总公司
海尔智家股份有限公司
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 青岛海尔空调电子有限公司, 青岛海尔空调器有限总公司, 海尔智家股份有限公司 filed Critical 青岛海尔空调电子有限公司
Publication of WO2022017546A1 publication Critical patent/WO2022017546A1/fr

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Classifications

    • 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
    • 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
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • 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
    • F24F11/64—Electronic processing using pre-stored data
    • 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
    • F24F11/65—Electronic processing for selecting an operating mode
    • 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
    • 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
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • 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
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the invention belongs to the technical field of air conditioning, and in particular relates to an air conditioner and a control method thereof.
  • the temperature control of the indoor unit of the existing air conditioner mainly includes two temperature sensors, the indoor ambient temperature and the indoor inner coil.
  • the inner ring temperature sensor is mainly used to detect the ambient temperature
  • the inner coil temperature sensor is mainly used to detect the indoor heat exchanger.
  • the temperature detected by the inner coil temperature sensor during the cooling process is used to prevent the temperature of the indoor heat exchanger from being too low, to prevent the indoor heat exchanger from freezing and water leakage, and the temperature detected by the inner coil temperature sensor during the heating process is used to prevent The temperature of the indoor heat exchanger is too high to prevent the whole system from being overloaded.
  • the pipeline with the second lowest cooling temperature is generally selected as the coil temperature sensor position.
  • the disadvantage of this method is: during the refrigeration process, if the temperature difference between the lowest temperature pipeline and the second lowest pipeline is relatively large, the temperature of the second lowest pipeline cannot represent the temperature of the evaporator. The temperature of the pipeline is too low, and the temperature detected by the inner coil temperature sensor will be relatively high, but the actual lowest point of the evaporator temperature has already frozen, which is prone to the risk of freezing and water leakage.
  • the position with the second lowest cooling temperature is generally not the position with the highest temperature. If the temperature difference between the shunts of the indoor heat exchanger is large, the coil temperature sensor cannot protect and limit the maximum temperature. It may cause the system to overload and fail to protect and damage components.
  • the present invention provides an air conditioner and a control method thereof, so as to solve the risk of freezing and water leakage in the refrigeration process caused by the position of the coil tube of the indoor heat exchanger of the air conditioner, and the overload protection cannot be realized in the heating process technical issues.
  • An air conditioner comprising an indoor heat exchanger, further comprising:
  • a first coil temperature sensor located at the lowest temperature position when the indoor heat exchanger is used as an evaporator, for detecting the temperature of the first coil
  • the second coil temperature sensor is located at the highest temperature position when the indoor heat exchanger is used as a condenser, and is used to detect the temperature of the second coil;
  • the control module is used to obtain the cooling and heating state of the air conditioner, in the cooling state, the temperature of the first coil is used as the control parameter of the air conditioner, and in the heating state, the temperature of the second coil is used as the air conditioner control parameters of the controller.
  • the control module is configured to use the temperature of the first coil as the control parameter of the air conditioner within a period of time after the start of the cooling state, and within a period of time after the start of the heating state
  • the temperature of the second coil is used as a control parameter of the air conditioner; it is also used to select the temperature of the first coil or the temperature of the second coil according to the difference between the temperature of the first coil and the temperature of the second coil after a period of time when the cooling state starts
  • the temperature is used as the control parameter of the air conditioner, and the temperature of the first coil is selected as the control parameter of the air conditioner according to the difference between the temperature of the first coil and the temperature of the second coil after the heating state starts for a period of time.
  • the control module is configured to select the temperature of the first coil as the temperature of the air conditioner when -a ⁇ temperature of the first coil - temperature of the second coil ⁇ 0 Control parameter, when 0 ⁇ first coil temperature-second coil temperature ⁇ a, the second coil temperature is selected as the control parameter of the air conditioner; it is used after heating starts for a period of time, when -a ⁇ th When the temperature of the first coil - the temperature of the second coil is less than or equal to 0, the temperature of the second coil is selected as the control parameter of the air conditioner, and when 0 ⁇ the temperature of the first coil - the temperature of the second coil ⁇ a, the first coil is selected The temperature is used as the control parameter of the air conditioner.
  • control module is configured to determine that the air conditioner operates abnormally when
  • control module is used to control the opening degree of the electronic expansion valve according to the control parameter in the cooling state; the control module is used to control the opening of the compressor according to the control parameter in the heating state. operating frequency.
  • a control method of an air conditioner is:
  • a first coil temperature sensor located at the lowest temperature position of the indoor heat exchanger as an evaporator detects the temperature of the first coil
  • a second coil temperature sensor located at the highest temperature position of the indoor heat exchanger as a condenser detects the temperature of the second coil
  • the temperature of the first coil is used as the control parameter of the air conditioner
  • the temperature of the second coil is used as the control parameter of the air conditioner
  • the above-mentioned control method of an air conditioner uses the temperature of the first coil as the control parameter of the air conditioner within a period of time after the start of the cooling state, and uses the temperature of the second coil within a period of time after the start of the heating state.
  • the temperature of the tube is used as the control parameter of the air conditioner; after a period of time when the cooling state starts, the temperature of the first coil or the temperature of the second coil is selected as the air conditioner according to the difference between the temperature of the first coil and the temperature of the second coil.
  • the first coil temperature is selected as the control parameter of the air conditioner according to the difference between the first coil temperature and the second coil temperature after a period of time when the heating state starts.
  • the temperature of the first coil is selected as the control parameter of the air conditioner,
  • the temperature of the first coil is selected as the control parameter of the air conditioner,
  • the second coil temperature is selected as the control parameter of the air conditioner;
  • the first coil temperature is selected as the air conditioner control parameters of the controller.
  • the opening degree of the electronic expansion valve is controlled by the control parameter in the cooling state
  • the operating frequency of the compressor is controlled by the control parameter in the heating state
  • the air conditioner of the present invention is provided with a first coil temperature sensor and a second coil temperature sensor on the indoor heat exchanger, and the first coil temperature sensor is located in the indoor heat exchanger.
  • the heat exchanger is used as the evaporator, the temperature is the lowest position.
  • the second coil temperature sensor is located at the highest temperature position when the indoor heat exchanger is used as the condenser.
  • the first coil temperature is used as the control parameter of the air conditioner. , it can ensure that the minimum temperature of the indoor heat exchanger is within the set range, and it will not cause freezing and water leakage. The maximum temperature of the heat exchanger is within the set range, and the system will not be overloaded.
  • the control method of the air conditioner of the present invention uses the temperature of the first coil located at the lowest position of the indoor heat exchanger temperature as the control parameter of the air conditioner when the air conditioner is in a cooling state, which can ensure that the lowest temperature of the indoor heat exchanger is within the set range.
  • the temperature of the second coil located at the highest position of the indoor heat exchanger temperature is used as the control parameter of the air conditioner, which can ensure the highest temperature of the indoor heat exchanger.
  • the system will not be overloaded.
  • FIG. 1 is a schematic block diagram of an air conditioner according to a specific embodiment of the present invention.
  • FIG. 2 is a flowchart of a control method of an air conditioner according to a specific embodiment of the present invention.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a It is a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication between two components.
  • installed should be understood in a broad sense, for example, it may be a fixed connection or a It is a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication between two components.
  • the refrigeration cycle system of the air conditioner in this embodiment is in the prior art, and will not be described here.
  • the focus of this embodiment is to set two independent coil temperature sensors on the indoor heat exchanger, and to design the positions of the coil temperature sensors, so as to select a suitable coil temperature sensor to detect the temperature in the cooling state and the heating state.
  • the temperature is used as a control parameter to control the air conditioner.
  • a first coil temperature sensor and a second coil temperature sensor are arranged on the indoor heat exchanger, and the first coil temperature sensor is located at the lowest temperature position when the indoor heat exchanger is used as an evaporator , the second coil temperature sensor is located at the highest temperature position when the indoor heat exchanger is used as a condenser.
  • the first coil temperature is used as the control parameter of the air conditioner, which can ensure the lowest temperature of the indoor heat exchanger. Within the set range, it will not cause freezing and water leakage.
  • the temperature of the second coil is used as the control parameter of the air conditioner to ensure that the maximum temperature of the indoor heat exchanger is within the set range. In this case, the system will not be overloaded, and this embodiment can ensure the normal operation of the air conditioner.
  • the air conditioner of this embodiment includes an indoor heat exchanger, a control module, a first coil temperature sensor and a second coil temperature sensor located in the indoor heat exchanger.
  • the first coil temperature sensor is located at the lowest temperature position when the indoor heat exchanger is used as the evaporator, and is used for detecting the first coil temperature at the lowest temperature position.
  • the lowest temperature position is the lowest temperature position when the air conditioner is in a normal working state determined in advance through experiments.
  • the second coil temperature sensor is located at the highest temperature position when the indoor heat exchanger is used as a condenser, and is used to detect the second coil temperature at the highest temperature position.
  • the highest temperature position is the highest temperature position when the air conditioner is in a normal working state determined by experiments in advance.
  • the control module is used to obtain the cooling and heating state of the air conditioner.
  • the indoor heat exchanger is an evaporator
  • the indoor heat exchanger is a condenser.
  • the air conditioner is in the cooling or heating state by directly receiving the control signal.
  • the controller is configured to use the temperature of the first coil as the control parameter of the cooling state in the cooling state, and use the temperature of the second coil as the control parameter of the heating state in the heating state.
  • the air conditioner is in normal operation at the initial stage of operation, that is, in the cooling state, the temperature of the first coil is the lowest point of the temperature of the entire indoor heat exchanger, and in the heating state, the temperature of the second coil is the temperature of the entire indoor heat exchanger. The highest point of the heater temperature.
  • the temperature of the indoor heat exchanger may change due to some reasons such as liquid separation. At this time, it is necessary to select a more appropriate control according to the relationship between the temperature of the first coil and the temperature of the second coil. parameters to facilitate the control of the air conditioner.
  • control module is configured to use the temperature of the first coil as the control parameter of the cooling state within a period of time after the start of the cooling state, and use the temperature of the second coil as the heating state within a period of time after the start of the heating state It is also used to select the temperature of the first coil or the temperature of the second coil as the control parameter of the cooling state according to the difference between the temperature of the first coil and the temperature of the second coil after the cooling state starts for a period of time. After the heating state starts for a period of time, the temperature of the first coil is selected as the control parameter of the heating state according to the difference between the temperature of the first coil and the temperature of the second coil.
  • control module is used to select the first coil temperature as the control parameter of the cooling state when -a ⁇ first coil temperature-second coil temperature ⁇ 0 after cooling starts for a period of time, and when 0 ⁇ first coil temperature
  • the second coil temperature is selected as the control parameter of the cooling state; it is used for -a ⁇ the first coil temperature - the second coil temperature after the heating starts for a period of time.
  • ⁇ 0 the temperature of the second coil is selected as the control parameter of the heating state
  • 0 ⁇ the temperature of the first coil - the temperature of the second coil ⁇ a the temperature of the first coil is selected as the control parameter of the heating state.
  • a is a natural number, preferably a is any value in 5-9.
  • the control module is also used to judge that the air conditioner is running abnormally (indicating that the amount of refrigerant is insufficient or that there is a problem with liquid separation) after a period of time after the cooling or heating starts, and when
  • the temperature control parameters in the cooling state are mainly used to control the throttling opening of the electronic expansion valve and the refrigeration and freezing protection when the air conditioner is in the cooling state
  • the heating state control parameters are mainly used for the overload protection of the indoor unit when the air conditioner is in the heating state.
  • the control module is used for controlling the opening degree of the electronic expansion valve according to the temperature control parameter in the cooling state in the cooling state.
  • the temperature detected by the first coil temperature sensor is preferentially selected as the temperature control parameter in the cooling state to participate in the throttle opening control of the electronic expansion valve.
  • the inner first coil temperature sensor with low temperature is used as the reference.
  • the lower temperature of the first coil temperature and the second coil temperature is selected as the temperature control parameter in the cooling state to participate in the throttle opening control of the electronic expansion valve.
  • the temperature control parameters in the cooling state control the throttling of the electronic expansion valve as follows:
  • the air conditioner has different target superheat degrees at different compressor frequencies, and the target superheat degree is the parameter T solidified into the air conditioner.
  • the opening of the electronic expansion valve is fixed. After t minutes, the value of T-T1 will be judged, and the detection will be performed every specific time t1.
  • T-T1 0, the opening of the electronic expansion valve is 0 pls (step)/10s;
  • the control module is used for controlling the operating frequency of the compressor according to the temperature control parameter in the heating state in the heating state.
  • the temperature detected by the second coil temperature sensor is preferentially used as a heating state temperature control parameter to control the compressor. After a period of time, the higher temperature of the first coil temperature and the second coil temperature is selected as the temperature control parameter in the heating state to control the compressor.
  • the temperature control parameter Tb in the heating state is only used for overload protection.
  • the frequency of the compressor is controlled according to the interval to which Tb belongs. The higher the Tb, the faster the compressor frequency reduction speed.
  • Tb reaches the upper limit of the set value, the compressor will stop for protection, and the compressor will restart when Tb drops to the set value.
  • the frequency of the press is 0Hz/s
  • the first coil temperature sensor located at the lowest temperature position of the indoor heat exchanger as the evaporator detects the temperature of the first coil
  • the second coil temperature sensor located at the highest temperature position of the indoor heat exchanger as a condenser detects the temperature of the second coil
  • the temperature of the first coil is used as the control parameter of the air conditioner
  • the temperature of the second coil is used as the control parameter of the air conditioner
  • the temperature of the first coil is used as the control parameter of the air conditioner
  • the temperature of the second coil is used as the control parameter of the air conditioner
  • the temperature of the first coil or the temperature of the second coil is selected as the control parameter of the air conditioner according to the difference between the temperature of the first coil and the temperature of the second coil.
  • the difference between the temperature of the first coil and the temperature of the second coil selects the temperature of the first coil as a control parameter of the air conditioner.
  • the opening degree of the electronic expansion valve is controlled by the control parameter
  • the operating frequency of the compressor is controlled by the control parameter.
  • control method of this embodiment includes the following steps:
  • step S1 Turn on the device, if it is a cooling signal, go to step S2, if it is a heating signal, go to step S7.
  • the temperature of the first coil is used as a control parameter.
  • step S4 After a period of time, determine the difference between the temperature of the first coil and the temperature of the second coil, if 0 ⁇ A-B ⁇ 7, go to step S5, if -7 ⁇ A-B ⁇ 0, go to step S3, otherwise go to step S6.
  • the temperature of the second coil is used as a control parameter.
  • step S9 After a period of time, determine the difference between the temperature of the first coil and the temperature of the second coil. If 0 ⁇ A-B ⁇ 7, go to step S10, if -7 ⁇ A-B ⁇ 0, go to step S8, otherwise go to step S6.

Abstract

Climatiseur et procédé de commande associé. Un premier capteur de température de bobine et un second capteur de température de bobine sont disposés sur un échangeur thermique intérieur, le premier capteur de température de bobine étant situé à une position de température minimale de l'échangeur thermique intérieur lorsque l'échangeur fait office d'évaporateur, et le second capteur de température de bobine étant situé à une position de température maximale de l'échangeur thermique intérieur lorsque l'échangeur fait office d'évaporateur. Lorsque le climatiseur est dans un état de refroidissement, une première température de bobine sert de paramètre de commande pour le climatiseur, ce qui permet d'assurer que la température minimale de l'échangeur thermique intérieur se trouve dans une plage définie et n'est pas assez faible pour provoquer une congélation et une fuite d'eau. Lorsque le climatiseur est dans un état de chauffage, une seconde température de bobine sert de paramètre de commande pour le climatiseur, ce qui permet d'assurer que la température maximale de l'échangeur thermique intérieur se trouve dans une plage définie de manière à ne pas provoquer une surcharge du système.
PCT/CN2021/118907 2020-09-21 2021-09-17 Climatiseur et procédé de commande associé WO2022017546A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010995021.7A CN112212462B (zh) 2020-09-21 2020-09-21 一种空调器及其控制方法
CN202010995021.7 2020-09-21

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Publication Number Publication Date
WO2022017546A1 true WO2022017546A1 (fr) 2022-01-27

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112212462B (zh) * 2020-09-21 2023-04-25 青岛海尔空调电子有限公司 一种空调器及其控制方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102788403A (zh) * 2012-07-30 2012-11-21 广东美的电器股份有限公司 检测空调器缺冷媒的方法及空调器
CN107192155A (zh) * 2017-05-17 2017-09-22 珠海格力电器股份有限公司 一种空调系统及其控制方法
CN206709437U (zh) * 2017-05-17 2017-12-05 珠海格力电器股份有限公司 一种空调系统
CN108332344A (zh) * 2017-07-27 2018-07-27 青岛海尔空调器有限总公司 一种分区送风空调器控制方法及空调器
CN112212462A (zh) * 2020-09-21 2021-01-12 青岛海尔空调电子有限公司 一种空调器及其控制方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101109592B (zh) * 2006-07-19 2012-06-13 乐金电子(天津)电器有限公司 空调器压缩机吸气口温度紧急状态控制方法
CN108302690A (zh) * 2017-07-24 2018-07-20 珠海格力电器股份有限公司 压缩机运行频率控制方法、装置以及变频空调器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102788403A (zh) * 2012-07-30 2012-11-21 广东美的电器股份有限公司 检测空调器缺冷媒的方法及空调器
CN107192155A (zh) * 2017-05-17 2017-09-22 珠海格力电器股份有限公司 一种空调系统及其控制方法
CN206709437U (zh) * 2017-05-17 2017-12-05 珠海格力电器股份有限公司 一种空调系统
CN108332344A (zh) * 2017-07-27 2018-07-27 青岛海尔空调器有限总公司 一种分区送风空调器控制方法及空调器
CN112212462A (zh) * 2020-09-21 2021-01-12 青岛海尔空调电子有限公司 一种空调器及其控制方法

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