CN108375265A - A kind of defrosting system of refrigerator and its control method - Google Patents

A kind of defrosting system of refrigerator and its control method Download PDF

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Publication number
CN108375265A
CN108375265A CN201810167554.9A CN201810167554A CN108375265A CN 108375265 A CN108375265 A CN 108375265A CN 201810167554 A CN201810167554 A CN 201810167554A CN 108375265 A CN108375265 A CN 108375265A
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CN
China
Prior art keywords
refrigeration
defrost
solenoid valve
compressor
evaporator
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201810167554.9A
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Chinese (zh)
Inventor
尚殿波
刘宏宇
崔培培
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Meiling Co ltd
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Hefei Meiling Co ltd
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 Hefei Meiling Co ltd filed Critical Hefei Meiling Co ltd
Priority to CN201810167554.9A priority Critical patent/CN108375265A/en
Publication of CN108375265A publication Critical patent/CN108375265A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002—Defroster control
    • F25D21/004—Control mechanisms
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • 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
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles
    • F25B47/022—Defrosting cycles hot gas defrosting
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/009—Compression machines, plants or systems with reversible cycle not otherwise provided for indoor unit in circulation with outdoor unit in first operation mode, indoor unit in circulation with an other heat exchanger in second operation mode or outdoor unit in circulation with an other heat exchanger in third operation mode
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/021—Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit
    • F25B2313/0211—Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit the auxiliary heat exchanger being only used during defrosting
    • 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
    • F25B2600/25—Control of valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Defrosting Systems (AREA)

Abstract

The present invention provides a kind of defrosting system of refrigerator, including compressor, condenser, defrost heat exchanger, refrigeration capillary, freezing capillary, refrigeration evaporator, refrigerating evaporator and solenoid valve one, solenoid valve two, it realizes that refrigeration system pipeline when refrigerating evaporator defrost switches using solenoid valve one and solenoid valve two, and has used the defrost heat exchanger on refrigerating evaporator.When refrigerating evaporator needs defrost and refrigeration needs refrigeration, two electromagnetism Vavle switching refrigerant flow paths being arranged on refrigeration circuit are used using the control method of defrosting system of refrigerator of the present invention, the warm refrigerant of compressor discharge is imported into defrost heat exchanger, the defrost of refrigerating evaporator is realized using defrost heat exchanger.The present invention can make full use of the frost layer cold on refrigerating evaporator for refrigeration chamber, realize energy saving defrost.

Description

A kind of defrosting system of refrigerator and its control method
Technical field
The present invention relates to refrigerator arts, are in particular a kind of defrosting system of refrigerator and its control method.
Background technology
Frostless wind cooling refrigerator on the market is mostly to carry out defrost using defrosting heater, refrigerator enters when carrying out defrost Refrigerating evaporator temperature is generally all relatively low at the beginning for defrost state, and defrosting heater needs a very long time that could complete to freeze The defrost of evaporator works.For refrigerating evaporator, the frost layer on refrigerating evaporator has certain cold, this part cold Amount is harmful, useless during defrost；And for condenser, it is extra to flow through the refrigerant heat of condenser , which forms the wastes of energy in refrigerator refrigeration system.
Invention content
The present invention is directed to solve one of above-mentioned technical problem at least to a certain extent.For this purpose, the present invention proposes a kind of ice Case defrosting system and its control method, the frost layer cold that can make full use of on refrigerating evaporator are used for refrigeration chamber, realize Energy saving defrost.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of defrosting system of refrigerator, including compressor, condenser, defrost heat exchanger, refrigeration capillary, freezing capillary, Refrigeration evaporator and refrigerating evaporator, the defrost heat exchanger are mounted on refrigerating evaporator, the exhaust end and electromagnetism of compressor The import a0 of valve one is connected, and there are two outlets for the tool of the solenoid valve one, and are connected with the input end of condenser, to go out with exporting a1 Mouth a2 is connected with the input end of defrost heat exchanger；The input end of the outlet end and refrigeration evaporator that refrigerate capillary is sequentially connected, The input end of the outlet end and refrigerating evaporator that freeze capillary is sequentially connected, the outlet end of refrigeration evaporator and refrigerating evaporator It is connected respectively with the inlet end of compressor；The outlet end of the condenser is connected with the import b0 of solenoid valve two, the solenoid valve There are two outlets for two tools, and are connected with the input end for freezing capillary with exporting b1, the import to export b2 with refrigerate capillary End is connected, and the outlet end of the defrost heat exchanger is connected by bye-pass with the input end of refrigeration capillary.
The control method of the defrosting system of refrigerator of the present invention, is to carry out as follows：
1) judge whether freezing needs to freeze, if desired, then solenoid valve one switches to outlet a1, solenoid valve two switches to out Mouth b1 starts compressor, and refrigerant is discharged through compressor exhaust end, passes through condenser, freezing capillary successively, into frozen steamed Device is sent out, compressor inlet end is finally back to；It does not need such as, thens follow the steps 2)；
2) judge whether refrigeration needs to freeze, while judging whether refrigerating evaporator needs defrost, if refrigeration needs to freeze And refrigerating evaporator does not need defrost, thens follow the steps 3)；If refrigeration needs to freeze and refrigerating evaporator needs defrost, execute Step 4)；If refrigeration need not freeze and refrigerating evaporator needs defrost, then follow the steps 5)；
3) solenoid valve one switches to outlet a1, and solenoid valve two switches to outlet b2, and compressor start, refrigerant is from compressor Exhaust end is discharged, and passes through condenser successively, refrigeration capillary is finally back to compressor inlet end into refrigeration evaporator；
4) solenoid valve one switches to outlet a2, and solenoid valve two switches to outlet b1, and compressor start, refrigerant is from compressor Exhaust end is discharged, and heat transfer defrost is carried out to refrigerating evaporator into defrost heat exchanger, then enters refrigeration by refrigerating capillary Evaporator is finally back to compressor inlet end；
5) start refrigerator included defrosting heater and defrost is carried out to refrigerating evaporator, until defrost is completed.
Compared with the prior art, the present invention has the beneficial effect that：
Defrost heat exchanger is mounted on refrigerating evaporator by the present invention, can need defrost in refrigerating evaporator and refrigeration needs When freezing, using control rule using two electromagnetism Vavle switching refrigerant flow paths being arranged on refrigeration circuit, compressor is arranged The warm refrigerant gone out imports defrost heat exchanger, makes full use of the condensation heat of refrigerant to give refrigerating evaporator defrost, while defrost is changed Hot device serves as condenser when refrigeration evaporator refrigeration, and the frost layer cold on refrigerating evaporator is made full use of, and realizes frozen steamed While sending out device defrost, refrigeration chamber is carried out, realizes making full use of for refrigerator self heat and cold.
Description of the drawings
Fig. 1 is the structural schematic diagram of defrosting system of refrigerator of the present invention.
In figure, 1 compressor；2 solenoid valves one；3 defrost heat exchangers；4 condensers；5 solenoid valves two；6 refrigeration capillaries；7 is cold Freeze capillary；8 refrigeration evaporators；9 refrigerating evaporators.
Specific implementation mode
Please refer to Fig. 1, the defrosting system of refrigerator of the present embodiment, including compressor 1, condenser 4, defrost heat exchanger 3, refrigeration Capillary 6, freezing capillary 7, refrigeration evaporator 8 and refrigerating evaporator 9, defrost heat exchanger 3 is mounted on refrigerating evaporator 9, It is in contact with the pipeline of refrigerating evaporator 9, the exhaust end of compressor 1 is connected with the import a0 of solenoid valve 1, and solenoid valve 1 has There are two outlets, and are connected with the input end of condenser 4 with exporting a1, are connected with the input end of defrost heat exchanger 3 with exporting a2； The outlet end and the input end of refrigeration evaporator 8 for refrigerating capillary 6 are sequentially connected, and freeze outlet end and the frozen steamed of capillary 7 The input end of hair device 9 is sequentially connected, the outlet end of refrigeration evaporator 8 and refrigerating evaporator 9 respectively with the inlet end phase of compressor 1 Even；The outlet end of condenser 4 is connected with the import b0 of solenoid valve 25, solenoid valve 25 tool there are two outlet, and with export b1 with The input end of freezing capillary 7 is connected, is connected with the input end for refrigerating capillary 6 with exporting b2, the outlet end of defrost heat exchanger 3 It is connected with the input end of refrigeration capillary 6 by bye-pass.
Defrosting system of refrigerator with above structure realizes 9 defrost of refrigerating evaporator using solenoid valve 1 and solenoid valve 25 When refrigeration system pipeline switching, and used the defrost heat exchanger 3 on the refrigerating evaporator 9.Refrigeration system according to The outlet of the refrigeration demand switching solenoid valve 1 and solenoid valve 25 of refrigerator compartment, specific control principle is as shown in table 1, namely：
1) when refrigeration needs to freeze and refrigerating evaporator 9 does not need defrost, refrigerator presses normal refrigeration circulating Row, solenoid valve 1 switch to the outlets a1, and solenoid valve 25 switches to the outlets b2, and refrigerant is discharged from compressor 1, passes through condenser 4, capillary 6 is refrigerated, into refrigeration evaporator 8, is finally back to 1 inlet end of compressor, completes refrigeration cycle.
2) when freezing needs refrigeration, refrigerator is switched to a1 and is gone out by normal freezing refrigeration cycle operation, solenoid valve 1 Mouthful, solenoid valve 25 switches to the outlets b1, and refrigerant is discharged from compressor 1, and by condenser 44, freezing capillary 7, entrance is cold Freeze evaporator 9, be finally back to 1 inlet end of compressor, completes freezing refrigeration cycle.
3) when refrigeration needs to freeze and refrigerating evaporator 9 needs defrost, solenoid valve 1 switches to the outlets a2, solenoid valve 25 switch to the outlets b1, and refrigerant is discharged from compressor 1, into defrost heat exchanger 3, using condensation temperature to refrigerating evaporator 9 Heat transfer defrost is carried out, then refrigerant is by refrigerating capillary 6, refrigeration evaporator 8, while 9 defrost of refrigerating evaporator, into Row refrigeration.While taking full advantage of condensation heat to 9 defrost of refrigerating evaporator, dropped to condenser 4 with the cold of frost layer Temperature realizes making full use of for refrigerator self heat and cold.
4) when refrigeration need not freeze and refrigerating evaporator 9 needs defrost, then refrigerator is used to carry defrosting heater pair Refrigerating evaporator 9 carries out defrost.
Table 1
To sum up, the control method of above-mentioned defrosting system of refrigerator is to carry out as follows：
1) judge whether freezing needs to freeze, if desired, then solenoid valve one switches to outlet a1, solenoid valve two switches to out Mouth b1 starts compressor, and refrigerant is discharged through compressor exhaust end, passes through condenser, freezing capillary successively, into frozen steamed Device is sent out, compressor inlet end is finally back to；It does not need such as, thens follow the steps 2)；
2) judge whether refrigeration needs to freeze, while judging whether refrigerating evaporator needs defrost, if refrigeration needs to freeze And refrigerating evaporator does not need defrost, thens follow the steps 3)；If refrigeration needs to freeze and refrigerating evaporator needs defrost, execute Step 4)；If refrigeration need not freeze and refrigerating evaporator needs defrost, then follow the steps 5)；
3) solenoid valve one switches to outlet a1, and solenoid valve two switches to outlet b2, and compressor start, refrigerant is from compressor Exhaust end is discharged, and passes through condenser successively, refrigeration capillary is finally back to compressor inlet end into refrigeration evaporator；
4) solenoid valve one switches to outlet a2, and solenoid valve two switches to outlet b1, and compressor start, refrigerant is from compressor Exhaust end is discharged, and heat transfer defrost is carried out to refrigerating evaporator into defrost heat exchanger, then enters refrigeration by refrigerating capillary Evaporator is finally back to compressor inlet end；
5) start refrigerator included defrosting heater and defrost is carried out to refrigerating evaporator, until defrost is completed.

Claims (2)

1. a kind of defrosting system of refrigerator, including it is compressor, condenser, defrost heat exchanger, refrigeration capillary, freezing capillary, cold Evaporator and refrigerating evaporator are hidden, it is characterized in that：The defrost heat exchanger is mounted on refrigerating evaporator, the exhaust end of compressor It is connected with the import a0 of solenoid valve one, there are two outlets for the tool of the solenoid valve one, and to export input end phases of the a1 with condenser Even, it is connected with the input end of defrost heat exchanger with exporting a2；Refrigerate capillary outlet end and refrigeration evaporator input end according to Secondary to be connected, the input end of the outlet end and refrigerating evaporator that freeze capillary is sequentially connected, refrigeration evaporator and refrigerating evaporator Outlet end be connected respectively with the inlet end of compressor；The outlet end of the condenser is connected with the import b0 of solenoid valve two, institute Stating the tool of solenoid valve two, there are two outlets, and are connected with the input end for freezing capillary with exporting b1, to export b2 and refrigeration capillary The input end of pipe is connected, and the outlet end of the defrost heat exchanger is connected by bye-pass with the input end of refrigeration capillary.
2. a kind of control method of defrosting system of refrigerator described in claim 1, it is characterized in that carrying out as follows：
1) judge whether freezing needs to freeze, if desired, then solenoid valve one switches to outlet a1, solenoid valve two switches to outlet B1 starts compressor, and refrigerant is discharged through compressor exhaust end, passes through condenser, freezing capillary successively, into freezing and evaporating Device is finally back to compressor inlet end；It does not need such as, thens follow the steps 2)；
2) judge whether refrigeration needs to freeze, while judging whether refrigerating evaporator needs defrost, if refrigeration needs to freeze and cold Freeze evaporator and do not need defrost, thens follow the steps 3)；If refrigeration needs to freeze and refrigerating evaporator needs defrost, then follow the steps 4)；If refrigeration need not freeze and refrigerating evaporator needs defrost, then follow the steps 5)；
3) solenoid valve one switches to outlet a1, and solenoid valve two switches to outlet b2, and compressor start, refrigerant is from compressor air-discharging Condenser is passed through in end discharge successively, refrigeration capillary is finally back to compressor inlet end into refrigeration evaporator；
4) solenoid valve one switches to outlet a2, and solenoid valve two switches to outlet b1, and compressor start, refrigerant is from compressor air-discharging End discharge, heat transfer defrost is carried out into defrost heat exchanger to refrigerating evaporator, then enters refrigeration evaporation by refrigerating capillary Device is finally back to compressor inlet end；
5) start refrigerator included defrosting heater and defrost is carried out to refrigerating evaporator, until defrost is completed.
CN201810167554.9A 2018-02-28 2018-02-28 A kind of defrosting system of refrigerator and its control method Pending CN108375265A (en)

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Application Number Priority Date Filing Date Title
CN201810167554.9A CN108375265A (en) 2018-02-28 2018-02-28 A kind of defrosting system of refrigerator and its control method

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112696839A (en) * 2019-10-18 2021-04-23 广东美的制冷设备有限公司 Air conditioning system, air conditioner and control method and control device of air conditioner
CN115682512A (en) * 2021-07-30 2023-02-03 青岛海尔电冰箱有限公司 Refrigerating and freezing device and control method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08193771A (en) * 1995-01-17 1996-07-30 Hitachi Ltd Freezing cycle
KR20010037545A (en) * 1999-10-18 2001-05-15 구자홍 Controll method of defrost period for refrigerator and defrost device therefor
CN102506557A (en) * 2011-10-26 2012-06-20 合肥美的荣事达电冰箱有限公司 Refrigeration equipment and switching unit control method in defrosting process of refrigeration equipment
CN105091437A (en) * 2015-08-28 2015-11-25 合肥美菱股份有限公司 Automatic defrosting system for air cooling refrigerator and control method of automatic defrosting system
CN105588396A (en) * 2016-02-02 2016-05-18 河南新飞电器有限公司 Multi-cycle air-cooling refrigerator defrosting refrigeration system and control method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08193771A (en) * 1995-01-17 1996-07-30 Hitachi Ltd Freezing cycle
KR20010037545A (en) * 1999-10-18 2001-05-15 구자홍 Controll method of defrost period for refrigerator and defrost device therefor
CN102506557A (en) * 2011-10-26 2012-06-20 合肥美的荣事达电冰箱有限公司 Refrigeration equipment and switching unit control method in defrosting process of refrigeration equipment
CN105091437A (en) * 2015-08-28 2015-11-25 合肥美菱股份有限公司 Automatic defrosting system for air cooling refrigerator and control method of automatic defrosting system
CN105588396A (en) * 2016-02-02 2016-05-18 河南新飞电器有限公司 Multi-cycle air-cooling refrigerator defrosting refrigeration system and control method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112696839A (en) * 2019-10-18 2021-04-23 广东美的制冷设备有限公司 Air conditioning system, air conditioner and control method and control device of air conditioner
CN115682512A (en) * 2021-07-30 2023-02-03 青岛海尔电冰箱有限公司 Refrigerating and freezing device and control method thereof

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Application publication date: 20180807