WO2019158047A1 - Procédé de commande antigel pour unité intérieure de climatiseur - Google Patents

Procédé de commande antigel pour unité intérieure de climatiseur Download PDF

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Publication number
WO2019158047A1
WO2019158047A1 PCT/CN2019/074846 CN2019074846W WO2019158047A1 WO 2019158047 A1 WO2019158047 A1 WO 2019158047A1 CN 2019074846 W CN2019074846 W CN 2019074846W WO 2019158047 A1 WO2019158047 A1 WO 2019158047A1
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WIPO (PCT)
Prior art keywords
indoor unit
air conditioner
freeze
control method
fan
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PCT/CN2019/074846
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English (en)
Chinese (zh)
Inventor
许文明
王飞
付裕
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青岛海尔空调器有限总公司
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Publication of WO2019158047A1 publication Critical patent/WO2019158047A1/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
    • F24F11/41—Defrosting; Preventing freezing
    • F24F11/43—Defrosting; Preventing freezing of indoor 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
    • F24F11/62—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
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature
    • 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
    • F24F2140/60—Energy consumption
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/11—Fan speed control
    • F25B2600/112—Fan speed control of evaporator fans
    • 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 conditioners, and in particular relates to an indoor unit anti-freeze control method for an air conditioner.
  • an air conditioner includes an indoor unit, an outdoor unit, and a circulation loop for connecting the indoor unit and the outdoor unit.
  • the heat exchange medium in the air conditioner continuously exchanges heat between the outdoor unit and the indoor unit through a circulation loop, thereby changing the room temperature. Effect.
  • the coil of the indoor unit is always in a low temperature state; at this time, if the indoor environment has a high humidity, the coil of the indoor unit is likely to freeze, and the freezing phenomenon occurs.
  • the generation will seriously affect the heat exchange efficiency of the indoor unit, so that the heat exchange effect of the air conditioner is continuously weakened, thereby affecting the comfort of the indoor environment. Therefore, when the air conditioner is cooling, the air conditioner needs to ensure that the coil of the indoor unit does not freeze.
  • the existing air conditioner In order to monitor the freezing phenomenon of the indoor unit coil, the existing air conditioner usually installs a temperature sensor on the coil of the indoor unit, so that the air conditioner can judge the freezing condition of the indoor unit coil through the coil temperature of the indoor unit. In order to freeze the indoor unit coil, the air conditioner can perform deicing treatment in time.
  • this monitoring method has a great disadvantage, that is, the accuracy of this monitoring method depends on the shunting of the heat exchanger; specifically, when the shunting of the indoor heat exchanger is not good, if the air conditioning It is difficult to accurately judge the freezing of the entire indoor unit coil by relying only on a branch road provided with a temperature sensor.
  • the air conditioner only relies on the temperature of the inner coil measured by the temperature sensor, and it is difficult to effectively judge the overall freezing condition of the indoor unit; therefore, the air conditioner cannot perform the deicing process on the indoor unit in time. It will seriously affect the heat exchange efficiency of the air conditioner, resulting in a drop in user experience.
  • the present invention provides An indoor unit anti-freeze control method for an air conditioner, the indoor unit anti-freeze control method comprising: acquiring a fan current and a coil temperature of the indoor unit during a cooling operation of the air conditioner; When the coil temperature of the machine is less than the freezing temperature of the indoor unit coil, it is determined whether the air conditioner is caused to enter the indoor unit anti-freeze mode according to the fan current of the indoor unit.
  • the step of causing the air conditioner to enter the indoor unit anti-freeze mode includes: comparing a ratio of a fan current of the indoor unit to a standard current value with a first preset value; according to the fan current and the indoor unit Determining whether the air conditioner enters the indoor unit anti-freeze mode by comparing the ratio of the standard current value to the first preset value.
  • the step of causing the air conditioner to enter the indoor unit anti-freeze mode includes: if the ratio of the fan current of the indoor unit to the standard current value is less than the first preset value, the air conditioner is caused to enter the indoor Machine anti-freeze mode.
  • the step of causing the air conditioner to enter the indoor unit anti-freeze mode includes: if the ratio of the fan current of the indoor unit to the standard current value is greater than or equal to the first preset value, the air conditioner is not caused The device enters the indoor unit anti-freeze mode.
  • the standard current value is a current value of the fan at different rotational speeds when the indoor unit is in an unfrozen state.
  • the first preset value is an arbitrary value between 0.85 and 0.95.
  • the indoor unit anti-freeze control method further includes: after the air conditioner enters the indoor unit anti-freeze mode, according to the fan of the indoor unit Current, determine whether to cause the air conditioner to exit the indoor unit anti-freeze mode.
  • the step of the indoor unit anti-freeze mode includes: comparing a ratio of the fan current of the indoor unit to the standard current value with a second preset value; according to the fan current of the indoor unit and the standard current value And comparing the ratio with the second preset value to determine whether to cause the air conditioner to exit the indoor unit anti-freeze mode.
  • the step of causing the air conditioner to exit the indoor unit anti-freeze mode includes: if the ratio of the fan current of the indoor unit to the standard current value is greater than or equal to the second preset value, the air conditioner is caused Exit the indoor unit anti-freeze mode.
  • the second preset value is an arbitrary value between 0.95 and 1.
  • the indoor unit anti-freeze control method for an air conditioner of the present invention includes: acquiring a fan of the indoor unit during the air conditioner cooling operation Current and coil temperature; if the coil temperature of the indoor unit is less than the indoor unit coil freezing temperature, determining whether to cause the air conditioner to enter the indoor unit anti-freeze mode according to the fan current of the indoor unit.
  • the indoor unit anti-freeze control method needs to pass the fan current of the indoor unit. Further determining the freezing condition of the indoor unit.
  • the indoor unit anti-freeze control method also determines the freezing condition of the indoor unit according to the fan current of the indoor unit when the coil temperature is lower than the indoor unit coil freezing temperature, so that the air conditioner can be more accurate. Judging the freezing condition of the indoor unit, thereby effectively avoiding the problem that the existing air conditioner is easily affected by other irrelevant factors and causing misjudgment only when the inner coil temperature is judged by the inner coil temperature. In addition, the indoor unit can be ensured to enter the anti-freeze mode quickly and accurately, so that the heat exchange efficiency of the air conditioner is effectively guaranteed.
  • the indoor unit anti-freeze control method uses the fan current and the standard current value of the indoor unit.
  • the ratio is compared with the first preset value; if the ratio of the fan current of the indoor unit to the standard current value is less than the first preset value, the air conditioner is caused to enter the indoor unit anti-freeze mode; If the ratio of the fan current of the indoor unit to the standard current value is greater than or equal to the first preset value, the air conditioner is not caused to enter the indoor unit anti-freeze mode.
  • the present invention further determines the timing of the air conditioner entering the indoor unit anti-freeze mode by comparing the ratio of the fan current of the indoor unit to the standard current value to the first preset value, because The fan current of the indoor unit can accurately reflect the freezing condition of the entire indoor unit, and there is no problem that the prior art only relies on local conditions to judge the overall freezing degree, and the misjudgment phenomenon is easily existed, thereby making the air conditioner The ability to judge the degree of freezing of the indoor unit is greatly improved.
  • the present invention also provides a control method for the indoor unit to exit the anti-freeze mode.
  • the indoor unit anti-freeze control method compares a ratio of a fan current of the indoor unit to a standard current value with a second preset value; if the fan current of the indoor unit If the ratio of the standard current value is greater than or equal to the second preset value, the freezing condition of the indoor unit has been improved; at this time, the air conditioner is caused to exit the indoor unit anti-freeze mode.
  • the present invention determines the timing at which the air conditioner exits the indoor unit anti-freeze mode by comparing the ratio of the fan current of the indoor unit to the standard current value and the second preset value.
  • the fan current of the indoor unit can accurately reflect the freezing condition of the whole indoor unit, and there is no problem that the prior art only relies on the local freezing condition to judge the overall freezing degree and is prone to misjudgment. Therefore, the present invention determines that the timing of the indoor unit exiting the anti-freeze mode can effectively improve the accuracy of the determination by the fan current of the indoor unit, thereby effectively ensuring that the air conditioner is in the anti-freeze mode when exiting the indoor unit.
  • the freezing condition of the indoor unit has been comprehensively improved; at the same time, the air conditioner can quickly restore the normal cooling mode after the deicing is completed, thereby effectively ensuring the cooling effect of the air conditioner and improving the user experience.
  • 1 is a flow chart showing the main steps of an indoor unit anti-freeze control method of the present invention
  • FIG. 2 is a flow chart showing the specific steps of the indoor unit anti-freeze control method of the present invention.
  • Fig. 3 is a schematic block diagram of an air conditioner of the present invention.
  • the conventional air conditioner proposed based on the background art judges the freezing condition of the indoor unit only by the temperature of the inner coil, which easily causes a problem of misjudgment.
  • the invention provides an indoor unit anti-freeze control method for an air conditioner, which aims to solve the problem that the existing air conditioner only enters the anti-freeze mode by a single factor, and it is easy to cause misjudgment due to the influence of other factors. The problem.
  • the air conditioner of the present invention includes an indoor unit.
  • the indoor unit anti-freeze control method mainly includes the following steps:
  • the air conditioner when the air conditioner is in a cooling operation, acquiring a fan current and a coil temperature of the indoor unit; and in a case where the coil temperature of the indoor unit is smaller than an indoor unit coil freezing temperature, according to the indoor unit
  • the fan current determines whether the air conditioner is allowed to enter the indoor unit anti-freeze mode. Since the coil temperature of the indoor unit is less than the freezing temperature of the indoor unit coil, the indoor unit may have frozen. Moreover, since the fan current of the indoor unit can change correspondingly with the degree of freezing of the indoor unit, the change of the fan current is not easily interfered by irrelevant factors.
  • the indoor unit anti-freeze control method can further accurately freeze the indoor unit by the fan current of the indoor unit. Effective judgment, in order to effectively avoid the problem that the existing air conditioner only judges the freezing condition of the indoor unit through the inner coil temperature, and is easily affected by other unrelated factors, thereby causing misjudgment, thereby maximally ensuring the said The indoor unit can accurately judge the timing of entering the anti-freeze mode, thereby effectively ensuring the heat exchange efficiency of the indoor unit.
  • the fan current of the indoor unit can directly reflect the degree of freezing of the entire indoor unit; since the load of the fan is determined at a certain speed, the corresponding fan current is also definite.
  • the rotational speed of the fan is determined, if the wind resistance of the fan increases, that is, when the load becomes larger, the fan current must also become smaller; meanwhile, if the fan current becomes smaller, the fan is described.
  • the indoor unit anti-freeze control method specifically includes the following steps:
  • step S101 the fan current and the coil temperature of the indoor unit are acquired, so that the indoor unit anti-freeze control method can jointly determine that the indoor unit enters the defense according to the fan current of the indoor unit and the coil temperature.
  • the timing of the freeze mode, and the timing of the indoor unit exiting the anti-freeze mode is determined according to the fan current of the indoor unit.
  • step S102 it is determined whether the coil temperature of the indoor unit is less than the indoor unit coil freezing temperature, so that the indoor unit anti-freeze control method can firstly be based on the coil temperature of the indoor unit to the indoor unit. A preliminary judgment is made on the freezing situation.
  • step S104 is performed even if the air conditioner maintains the current operating mode; if the indoor unit is When the temperature of the coil is less than the freezing temperature of the indoor unit coil, it indicates that the indoor unit may have frozen. At this time, step S103 is performed, that is, the indoor unit anti-freeze control method needs to be further determined by the fan current of the indoor unit. The freezing condition of the indoor unit.
  • step S103 comparing a ratio of a fan current of the indoor unit to a standard current value with a first preset value, so as to be based on a ratio of a fan current of the indoor unit to the standard current value.
  • the comparison result of the first preset value further determines whether the air conditioner is caused to enter the indoor unit anti-freeze mode.
  • the indoor unit anti-freeze control method includes the control method for the indoor unit to enter and exit the anti-freeze mode, but the technician obviously can also select according to actual use requirements. Part of the control method is used.
  • step S103 if the ratio of the fan current of the indoor unit to the standard current value is less than the first preset value, it indicates that the freezing condition of the indoor unit has indeed exceeded the indoor unit freeze.
  • the allowable range of the degree; at this time, step S105 is performed even if the air conditioner enters the indoor unit anti-freeze mode. If the ratio of the fan current of the indoor unit to the standard current value is greater than or equal to the first preset value, it indicates that the coil temperature of the indoor unit does not accurately reflect the freezing condition of the indoor unit. The freezing condition of the indoor unit does not actually exceed the allowable range of the freezing degree of the indoor unit; at this time, step S104 is performed even if the air conditioner maintains the current operating mode.
  • the invention simultaneously determines the timing of the air conditioner entering the indoor unit anti-freeze mode by the fan current and the coil temperature of the indoor unit, so that the ability of the air conditioner to judge the freezing degree of the indoor unit is greatly improved.
  • the technician can set the allowable range of the indoor unit freezing degree according to the actual use requirements.
  • the air conditioner reduces the frequency of the compressor to 0.8 times the current frequency, so that the freezing condition of the indoor unit can be quickly improved; of course, the technician can also according to different air conditioners.
  • the anti-freeze mode is set in the actual situation.
  • the first preset value is any value between 0.85 and 0.95; of course, this is not limiting, and those skilled in the art can flexibly set the number in practical applications.
  • a specific value of a preset value can determine whether the fan current of the indoor unit is excessively attenuated as long as the demarcation point determined by the first preset value is determined.
  • the standard current value described in the preferred embodiment may be measured before the air conditioner is shipped from the factory; that is, when the air conditioner is in an unfrozen state, the air conditioner is operated in a standard working condition. During the operation of the air conditioner under standard operating conditions, the standard current value of the fan of the indoor unit at different rotational speeds is determined. It should be noted that the present invention does not limit the method of measuring the standard current value.
  • step S106 the ratio of the fan current of the indoor unit to the standard current value is compared with a second preset value; according to the ratio of the fan current of the indoor unit to the standard current value, A comparison result of the second preset value determines whether the air conditioner is caused to exit the indoor unit anti-freeze mode. If the ratio of the fan current of the indoor unit to the standard current value is greater than or equal to the second preset value, it indicates that the freezing condition of the indoor unit has been effectively improved; at this time, step S107 is performed, even if The air conditioner exits the indoor unit anti-freeze mode.
  • step S106 is performed again, that is, the judgment is performed again.
  • the invention determines the timing of the air conditioner exiting the anti-freeze mode by the fan current and the standard current value of the indoor unit, so that the air conditioner can quickly resume the normal cooling mode after the deicing is completed, thereby effectively ensuring the air conditioner.
  • the cooling effect of the device improves the user experience.
  • the second preset value is any value between 0.95 and 1; of course, this is not limiting, and those skilled in the art can flexibly set the number in practical applications.
  • the specific value of the two preset values can be determined whether the freezing condition of the indoor unit has been effectively improved as long as the demarcation point determined by the second preset value can be determined.
  • the present invention also provides an air conditioner 100 including an outdoor unit 110 and an indoor unit 120.
  • a fan 121 and a current detecting device 122 are disposed in the indoor unit 120.
  • a heat exchanger 123 (which includes a coil) and a temperature sensor 124 are also disposed in the indoor unit 120.
  • the air conditioner 100 can be controlled by the anti-freeze control method described in any of the above embodiments, so that the air conditioner can accurately de-ice in time and quickly return to the normal cooling mode after the de-icing is completed.

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

Abstract

La présente invention se rapporte au domaine technique des climatiseurs et concerne en particulier un procédé de commande antigel pour une unité intérieure d'un climatiseur. La présente invention vise à résoudre un problème dans l'état de la technique selon lequel un climatiseur utilise uniquement la température d'une bobine interne pour déterminer si oui ou non une congélation s'est produite dans une unité intérieure, et la détermination est par conséquent susceptible d'être affectée par d'autres facteurs et d'être imprécise. Le procédé de commande antigel pour une unité intérieure selon la présente invention comprend les étapes suivantes : lorsqu'un climatiseur réalise une opération de refroidissement, l'acquisition d'une valeur actuelle d'un ventilateur et d'une température d'une bobine dans une unité intérieure ; et si la température de la bobine dans l'unité intérieure est inférieure à une température de gel de bobine, la détermination, en fonction de la valeur actuelle du ventilateur, s'il convient d'amener le climatiseur à entrer dans un mode antigel d'unité intérieure. Lorsqu'une température d'une bobine dans une unité intérieure est inférieure à une température de gel de bobine, il est probable qu'un gel s'est produit dans l'unité intérieure, et un climatiseur doit ainsi prendre en considération une valeur actuelle d'un ventilateur dans l'unité intérieure pour réaliser une détermination supplémentaire par rapport à l'apparition d'un gel dans l'unité intérieure, ce qui permet de garantir au maximum que l'unité intérieure peut entrer rapidement et avec précision dans un mode antigel.
PCT/CN2019/074846 2018-02-14 2019-02-12 Procédé de commande antigel pour unité intérieure de climatiseur WO2019158047A1 (fr)

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CN201810151945.1A CN108413563A (zh) 2018-02-14 2018-02-14 用于空调器的室内机防冻结控制方法
CN201810151945.1 2018-02-14

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108413563A (zh) * 2018-02-14 2018-08-17 青岛海尔空调器有限总公司 用于空调器的室内机防冻结控制方法
CN110873435B (zh) * 2018-08-31 2021-12-28 青岛海尔空调电子有限公司 空调室内机防结霜控制方法
CN110736234A (zh) * 2019-10-11 2020-01-31 青岛海尔空调器有限总公司 空调控制的方法及装置、空调
CN111692710B (zh) * 2020-06-24 2021-09-21 宁波奥克斯电气股份有限公司 防冻结除霜的控制方法和空调器
CN111998512B (zh) * 2020-08-24 2022-06-24 广州华凌制冷设备有限公司 空调器控制方法、装置、设备及存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105241031A (zh) * 2015-11-09 2016-01-13 广东美的制冷设备有限公司 用于空调器的防凝露处理方法、防凝露处理装置和空调器
US20170343227A1 (en) * 2016-05-31 2017-11-30 Robert J. Mowris Apparatus and Methods to Measure Economizer Outdoor Air Fractions and Fault Detection Diagnostics of Airflow, Cooling Capacity, and Heating Capacity
CN107525209A (zh) * 2017-07-13 2017-12-29 青岛海尔空调器有限总公司 空调器自清洁控制方法及装置
CN108413563A (zh) * 2018-02-14 2018-08-17 青岛海尔空调器有限总公司 用于空调器的室内机防冻结控制方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005042982A (ja) * 2003-07-23 2005-02-17 Mitsubishi Electric Corp 空気調和機
JP2006138578A (ja) * 2004-11-15 2006-06-01 Matsushita Electric Ind Co Ltd 空気調和機
JP4624385B2 (ja) * 2007-07-20 2011-02-02 三菱電機株式会社 空気調和機
CN101660808B (zh) * 2008-08-29 2012-01-04 Tcl集团股份有限公司 空调器的除霜控制方法
CN102759239B (zh) * 2012-07-18 2015-02-18 广东志高空调有限公司 空调器结合温度变化及电流值变化的化霜方法及其控制器
CN104807132B (zh) * 2014-01-23 2018-02-27 珠海格力电器股份有限公司 一种化霜控制方法及装置
CN104180571B (zh) * 2014-08-25 2016-11-09 广东美的集团芜湖制冷设备有限公司 空调器的除霜控制方法、空调器的除霜控制装置和空调器
CN104930674B (zh) * 2015-05-14 2017-11-17 珠海格力电器股份有限公司 空调机组室外机除霜控制方法、装置和空调***
CN105588267B (zh) * 2015-05-29 2018-07-24 青岛海信日立空调***有限公司 一种热泵***结霜量自动检测的除霜控制方法及装置
CN105627524B (zh) * 2016-03-14 2018-06-01 广东美的制冷设备有限公司 空调器防冻结控制方法及空调器
CN106196428B (zh) * 2016-07-01 2019-04-26 美的集团武汉制冷设备有限公司 空调器及其防冻结控制方法
CN107152758A (zh) * 2017-05-22 2017-09-12 广东美的制冷设备有限公司 空调器防冻结保护控制方法和装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105241031A (zh) * 2015-11-09 2016-01-13 广东美的制冷设备有限公司 用于空调器的防凝露处理方法、防凝露处理装置和空调器
US20170343227A1 (en) * 2016-05-31 2017-11-30 Robert J. Mowris Apparatus and Methods to Measure Economizer Outdoor Air Fractions and Fault Detection Diagnostics of Airflow, Cooling Capacity, and Heating Capacity
CN107525209A (zh) * 2017-07-13 2017-12-29 青岛海尔空调器有限总公司 空调器自清洁控制方法及装置
CN108413563A (zh) * 2018-02-14 2018-08-17 青岛海尔空调器有限总公司 用于空调器的室内机防冻结控制方法

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