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)
English (en)
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)
  • Freezers Or Refrigerated Showcases (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
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 (zh)
KR (1) KR100908021B1 (zh)
CN (1) CN100523678C (zh)
AT (1) ATE551579T1 (zh)
ES (1) ES2383608T3 (zh)
RU (1) RU2360191C1 (zh)
WO (1) WO2006092759A1 (zh)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2431805T3 (es) * 2009-05-22 2013-11-28 Arçelik Anonim Sirketi Dispositivo de refrigeración calentado para evitar el escarchado
KR101741084B1 (ko) 2010-01-04 2017-05-30 삼성전자주식회사 냉장고의 제어방법
KR101586370B1 (ko) * 2013-12-26 2016-01-19 동부대우전자 주식회사 냉장고 제어 방법
CN105588395B (zh) * 2016-02-25 2017-10-24 合肥美菱股份有限公司 一种风冷冰箱风道加热系统及其控制方法
CN108885050B (zh) * 2016-03-01 2022-02-01 三菱电机株式会社 冰箱
CN108870832B (zh) * 2017-05-11 2021-05-04 博西华电器（江苏）有限公司 冰箱
CN111503964B (zh) * 2020-03-26 2021-09-03 广州美的华凌冰箱有限公司 冰箱、防冻结控制方法、电子设备和计算机可读存储介质
CN111426145A (zh) * 2020-04-10 2020-07-17 珠海格力电器股份有限公司 冰箱的防霉方法及装置、冰箱
RU2762803C1 (ru) * 2020-05-13 2021-12-23 Юрий Николаевич Харченко Холодильная установка

Family Cites Families (8)

* Cited by examiner, † Cited by third party
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 (ja) * 1988-11-09 1990-05-18 Sanyo Electric Co Ltd 冷蔵庫の制御装置
JP2573097B2 (ja) * 1990-11-22 1997-01-16 三洋電機株式会社 冷凍冷蔵庫
KR0129512B1 (ko) * 1990-12-18 1998-04-08 강진구 냉장고의 온도제어회로 및 방법
IT1286409B1 (it) * 1996-11-27 1998-07-08 Candy Spa Struttura frigorifera con ventilazione forzata variabile
KR19990024856A (ko) * 1997-09-08 1999-04-06 전주범 냉장고의 제상장치
KR100288836B1 (ko) * 1998-03-02 2001-05-02 구자홍 냉장고의구조및냉각방법
UA76962C2 (en) * 2000-10-11 2006-10-16 Arcelik As Method for refrigerating device control (variants)

Also Published As

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

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