EP1853863B1 - A cooling device - Google Patents

A cooling device Download PDF

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Publication number
EP1853863B1
EP1853863B1 EP06710984A EP06710984A EP1853863B1 EP 1853863 B1 EP1853863 B1 EP 1853863B1 EP 06710984 A EP06710984 A EP 06710984A EP 06710984 A EP06710984 A EP 06710984A EP 1853863 B1 EP1853863 B1 EP 1853863B1
Authority
EP
European Patent Office
Prior art keywords
compressor
air channel
cooling device
evaporator
ton
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.)
Not-in-force
Application number
EP06710984A
Other languages
German (de)
French (fr)
Other versions
EP1853863A1 (en
Inventor
Turgay Ercan
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Publication of EP1853863A1 publication Critical patent/EP1853863A1/en
Application granted granted Critical
Publication of EP1853863B1 publication Critical patent/EP1853863B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F25D21/04—Preventing the formation of frost or condensate
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
    • 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
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • 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
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0251—Compressor control by controlling speed with on-off operation
    • 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
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/065—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return
    • F25D2317/0653—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return through the mullion
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/02—Refrigerators including a heater
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/04—Refrigerators with a horizontal mullion
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer

Definitions

  • the present invention relates to a cooling device comprising an air channel which is prevented from being blocked due to frost formation.
  • cooling devices comprising two compartments, one being a freshfood and the other a freezer.
  • this type of cooling devices some of the air cooled by being passed over the evaporator with the help of a fan, is circulated in the freezing compartment and the rest in the freshfood compartment. The air, after completing its circulation in the freshfood compartment, passes through an air channel and reaches the freezing compartment again.
  • the cold air in the evaporator chamber flows towards the air channel, and lowers the temperature here to below the freezing point of water.
  • the relatively humid and hot air in the freshfood compartment starts to be directed towards the evaporator through the air channel.
  • the humidity of air condenses and consequently freezes on the cold surfaces, and after a while, the amount of frost accumulated in the air channel increases. This in turn results in a reduction of the amount of air being carried from the freshfood compartment to the evaporator chamber, hence an insufficient cooling of the freshfood compartment.
  • cooling devices comprising heaters in the air channel are disclosed.
  • a cooling device according to the preamble of claim 1 is known from US-A-4 122 687 .
  • a similar cooling device is known from JP-A-02 130 381 .
  • the aim of the present invention is to design a cooling device wherein the frosting problem in the air channel is eliminated.
  • the cooling device of the present invention comprises the features of claim 1.
  • Figure 1 - is the side schematic view of a cooling device.
  • Figure 2 - is the side schematic view of another embodiment of the cooling device.
  • the cooling device (1) comprises an evaporator chamber (10) in which the evaporator (5) is situated, separated from the freezing compartment (2) by a wall and connected to the freshfood compartment (3) by way of the air channel (6).
  • the cooling device (1) comprises a control unit (9) which gathers information on the ambient temperature directly or indirectly.
  • control unit (9) comprises a heat sensor that measures the ambient temperature directly.
  • Tset a certain value for example 1-5°C
  • control unit (9) measures the off time (toff) and run time (ton) of the compressor (4), and when the run time ratio (ton/(ton+toff)), that is the quotient of the run time (ton) to the total time (ton+toff) falls below a certain value, for example 30 - 40 %, decides that the ambient temperature is so low to cause frosting in the air channel (6).
  • the anti-frost unit (7) comprises at least one fan (8) which is operated during the off period of the compressor (4), when the control unit (9) decides that the ambient temperature can cause frosting in the air channel (6), thus preventing the cold air in the evaporator chamber (10) from flowing into the air channel (6).
  • This fan (8) may also provide air circulation while the compressor (4) is operating.
  • the fan (8) can be operated at the same rotational speed both while the compressor (4) is on and off, or it can be operated at a lower speed after the compressor stops (4).
  • the anti-frost unit (7) is switched on after the compressor (4) stops.
  • the anti-frost unit (7) actuates the fan (8) during the off period of the compressor (4), thus preventing the air in the freezing compartment (2) from flowing into the air channel (6) and causing the temperature of this channel to fall down.
  • the fan (8) circulates the air from the freshfood compartment (3) to the air channel (6) and towards the evaporator (5) from there. In this way, when the compressor (4) and the fan (8) start operating together again, the moisture in the hot air coming from the freshfood compartment (3) is prevented from condensing and forming frost.
  • the anti-frost unit (7) comprises a heater (11) which starts operating after the compressor (4) stops, on the condition that the control unit (9) has decided that the ambient temperature may cause frosting in the air channel (6).
  • the heater (11) is positioned in the air channel (6).
  • the heater (11) can be actuated either alone or together with the fan (8).
  • the anti-frost unit (7) starts operating after the compressor (4) stops, heating up the air channel (6) during the off period of the compressor (4), and hence preventing the air flowing from the evaporator chamber (10) to cool the air channel (6).
  • the temperature of the air channel (6) is prevented from falling under the freezing temperature of water, and the moisture of the hot air flowing from the freshfood compartment (3) is prevented from condensing and forming frosting when the compressor (4) and the fan (8) start operating together again.
  • the frosting in the air channel (6) in low ambient temperatures is prevented by operating either the fan (8) or the heater (11) during the off period of the compressor (4). Consequently the problem of blocking of the air channel (6) is solved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Defrosting Systems (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Freezers Or Refrigerated Showcases (AREA)

Abstract

The present invention relates to a cooling device (1) comprising an air channel (6) which is prevented from being blocked by frosting.

Description

  • The present invention relates to a cooling device comprising an air channel which is prevented from being blocked due to frost formation.
  • In state-of-the-art, there are cooling devices comprising two compartments, one being a freshfood and the other a freezer. In this type of cooling devices, some of the air cooled by being passed over the evaporator with the help of a fan, is circulated in the freezing compartment and the rest in the freshfood compartment. The air, after completing its circulation in the freshfood compartment, passes through an air channel and reaches the freezing compartment again.
  • In especially low ambient temperatures, as the fan stops, the cold air in the evaporator chamber flows towards the air channel, and lowers the temperature here to below the freezing point of water. When the fan starts operating again, the relatively humid and hot air in the freshfood compartment starts to be directed towards the evaporator through the air channel. However, as hot air passes through the channel that becomes cold during the non-operation period of the evaporator, the humidity of air condenses and consequently freezes on the cold surfaces, and after a while, the amount of frost accumulated in the air channel increases. This in turn results in a reduction of the amount of air being carried from the freshfood compartment to the evaporator chamber, hence an insufficient cooling of the freshfood compartment.
  • In the Unites States Patents nos. US3826103 , and US5255536 , and EP644385 , cooling devices comprising heaters in the air channel are disclosed.
  • A cooling device according to the preamble of claim 1 is known from US-A-4 122 687 . A similar cooling device is known from JP-A-02 130 381 .
  • The aim of the present invention is to design a cooling device wherein the frosting problem in the air channel is eliminated.
  • The cooling device of the present invention comprises the features of claim 1.
  • The cooling device designed to fulfill the aim of the present invention is illustrated in the annexed drawings, where :
  • Figure 1- is the side schematic view of a cooling device.
  • Figure 2 - is the side schematic view of another embodiment of the cooling device.
  • Elements shown in the figures are numbered as follows:
    1. 1. Cooling device
    2. 2. Freezing compartment
    3. 3. Freshfood compartment
    4. 4. Compressor
    5. 5. Evaporator
    6. 6. Air channel
    7. 7. Anti-frost unit
    8. 8. Fan
    9. 9. Control unit
    10. 10. Evaporator chamber
    11. 11. Heater
  • In the preferred embodiment of the present invention, the cooling device (1) comprises an evaporator chamber (10) in which the evaporator (5) is situated, separated from the freezing compartment (2) by a wall and connected to the freshfood compartment (3) by way of the air channel (6).
  • The cooling device (1) comprises a control unit (9) which gathers information on the ambient temperature directly or indirectly.
  • In one embodiment of the present invention, the control unit (9) comprises a heat sensor that measures the ambient temperature directly. When the temperature (T) falls below a certain value (Tset), for example 1-5°C, the control unit (9) decides that there is a risk of frosting in the air channel (6).
  • In another embodiment of the present invention, the control unit (9) measures the off time (toff) and run time (ton) of the compressor (4), and when the run time ratio (ton/(ton+toff)), that is the quotient of the run time (ton) to the total time (ton+toff) falls below a certain value, for example 30 - 40 %, decides that the ambient temperature is so low to cause frosting in the air channel (6).
  • In one embodiment of the present invention, the anti-frost unit (7) comprises at least one fan (8) which is operated during the off period of the compressor (4), when the control unit (9) decides that the ambient temperature can cause frosting in the air channel (6), thus preventing the cold air in the evaporator chamber (10) from flowing into the air channel (6). This fan (8) may also provide air circulation while the compressor (4) is operating. The fan (8) can be operated at the same rotational speed both while the compressor (4) is on and off, or it can be operated at a lower speed after the compressor stops (4).
  • If the ambient temperature is below a certain value (T<Tset), the anti-frost unit (7) is switched on after the compressor (4) stops. The anti-frost unit (7) actuates the fan (8) during the off period of the compressor (4), thus preventing the air in the freezing compartment (2) from flowing into the air channel (6) and causing the temperature of this channel to fall down. The fan (8) circulates the air from the freshfood compartment (3) to the air channel (6) and towards the evaporator (5) from there. In this way, when the compressor (4) and the fan (8) start operating together again, the moisture in the hot air coming from the freshfood compartment (3) is prevented from condensing and forming frost.
  • In yet another embodiment of the present invention, the anti-frost unit (7) comprises a heater (11) which starts operating after the compressor (4) stops, on the condition that the control unit (9) has decided that the ambient temperature may cause frosting in the air channel (6). The heater (11) is positioned in the air channel (6). The heater (11) can be actuated either alone or together with the fan (8).
  • When the ambient temperature (T) falls below a certain value (T<Tset), the anti-frost unit (7) starts operating after the compressor (4) stops, heating up the air channel (6) during the off period of the compressor (4), and hence preventing the air flowing from the evaporator chamber (10) to cool the air channel (6). In this manner, the temperature of the air channel (6) is prevented from falling under the freezing temperature of water, and the moisture of the hot air flowing from the freshfood compartment (3) is prevented from condensing and forming frosting when the compressor (4) and the fan (8) start operating together again.
  • In the cooling device (1) of the present invention, the frosting in the air channel (6) in low ambient temperatures is prevented by operating either the fan (8) or the heater (11) during the off period of the compressor (4). Consequently the problem of blocking of the air channel (6) is solved.

Claims (5)

  1. A cooling device (1) comprising a compressor (4) which compresses and circulates refrigerant fluid in a cooling cycle, a freshfood compartment (3) in which the food is stored for cooling purposes, a freezing compartment (2) in which the food is stored for freezing purposes, being kept at lower temperatures than those of the freshfood compartment (3), at least one evaporator (5) for transferring heat from the medium to the refrigerant fluid, and at least one air channel (6) for passage of air between the freshfood compartment (3) and the evaporator (5) and an anti-frost unit (7), which prevents the temperature of the air channel (6) from falling below the freezing temperature of water and characterized by a control unit (9) which gathers information on the ambient temperature directly or indirectly, and switches on the anti-frost unit (7) when the ambient temperature (T) is under a certain value (Tset), during the off period of the compressor (4).
  2. A cooling device (1) according to Claim 1, characterized by an evaporator chamber (10) in which the evaporator (5) is situated, separated from the freezing compartment (2) by a wall and connected to the freshfood compartment (3) by way of the air channel (6) and by the anti-frost unit (7) comprising a fan (8) operated during the off period of the compressor (4), circulating the air from the freshfood compartment (3) into the air channel (6) and from there towards the evaporator (5), thus preventing the cold air in the evaporator chamber (10) from flowing into the air channel (6) when the compressor (4) does not operate.
  3. A cooling device (1) according to Claim 2, characterized by the anti-frost unit (7), comprising the fan (8), the rotational speed of which is decreased after the compressor (4) stops.
  4. A cooling device (1) according to Claim 1, characterized by the anti-frost unit (7), comprising a heater (11) that starts operating after the compressor (4) stops and heats the air channel (6).
  5. A cooling device (1) according to any one of the previous Claims, characterized by the control unit (9) which measures the off time (toff) and run time (ton) of the compressor (4), and when the run time ratio (ton/(ton + toff)), that is the ratio of the operation time (ton) to the total time (ton+toff) falls below a certain value, decides that the ambient temperature is so low to form frosting in the air channel (6).
EP06710984A 2005-03-01 2006-02-28 A cooling device Not-in-force EP1853863B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR200500702 2005-03-01
PCT/IB2006/050622 WO2006092759A1 (en) 2005-03-01 2006-02-28 A cooling device

Publications (2)

Publication Number Publication Date
EP1853863A1 EP1853863A1 (en) 2007-11-14
EP1853863B1 true EP1853863B1 (en) 2012-03-28

Family

ID=36600137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06710984A Not-in-force EP1853863B1 (en) 2005-03-01 2006-02-28 A cooling device

Country Status (7)

Country Link
EP (1) EP1853863B1 (en)
KR (1) KR100908021B1 (en)
CN (1) CN100523678C (en)
AT (1) ATE551579T1 (en)
ES (1) ES2383608T3 (en)
RU (1) RU2360191C1 (en)
WO (1) WO2006092759A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010133516A2 (en) * 2009-05-22 2010-11-25 Arcelik Anonim Sirketi A cooling device heated to prevent frosting
KR101741084B1 (en) 2010-01-04 2017-05-30 삼성전자주식회사 Control method of refrigerator
KR101586370B1 (en) * 2013-12-26 2016-01-19 동부대우전자 주식회사 Refrigerator control method
CN105588395B (en) * 2016-02-25 2017-10-24 合肥美菱股份有限公司 A kind of wind cooling refrigerator duct heating system and its control method
CN108885050B (en) * 2016-03-01 2022-02-01 三菱电机株式会社 Refrigerator with a door
CN108870832B (en) * 2017-05-11 2021-05-04 博西华电器（江苏）有限公司 Refrigerator with a door
CN111503964B (en) * 2020-03-26 2021-09-03 广州美的华凌冰箱有限公司 Refrigerator, anti-freezing control method, electronic device, and computer-readable storage medium
CN111426145A (en) * 2020-04-10 2020-07-17 珠海格力电器股份有限公司 Mildew-proof method and device for refrigerator and refrigerator
WO2021024047A1 (en) * 2020-05-13 2021-02-11 Юрий ХАРЧЕНКО Refrigeration unit

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Publication number Priority date Publication date Assignee Title
US4122687A (en) * 1976-12-09 1978-10-31 Mckee Thomas M Refrigeration system with low energy defrost
JPH02130381A (en) * 1988-11-09 1990-05-18 Sanyo Electric Co Ltd Control device for refrigerator
JP2573097B2 (en) * 1990-11-22 1997-01-16 三洋電機株式会社 Freezer refrigerator
KR0129512B1 (en) * 1990-12-18 1998-04-08 강진구 Temperature control circuit of a refrigerator
IT1286409B1 (en) * 1996-11-27 1998-07-08 Candy Spa REFRIGERATOR STRUCTURE WITH VARIABLE FORCED VENTILATION
KR19990024856A (en) * 1997-09-08 1999-04-06 전주범 Defroster of the refrigerator
KR100288836B1 (en) * 1998-03-02 2001-05-02 구자홍 Structure and cooling method of refrigerator
UA76962C2 (en) * 2000-10-11 2006-10-16 Arcelik As Method for refrigerating device control (variants)

Also Published As

Publication number Publication date
EP1853863A1 (en) 2007-11-14
RU2360191C1 (en) 2009-06-27
CN100523678C (en) 2009-08-05
ES2383608T3 (en) 2012-06-22
KR100908021B1 (en) 2009-07-15
ATE551579T1 (en) 2012-04-15
WO2006092759A1 (en) 2006-09-08
RU2007136095A (en) 2009-04-10
CN101133293A (en) 2008-02-27
KR20070108232A (en) 2007-11-08

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