EP2175216B1 - Eintüriger Kühlschrank und Verfahren zur Steuerung des Kühlschranks - Google Patents

Eintüriger Kühlschrank und Verfahren zur Steuerung des Kühlschranks Download PDF

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Publication number
EP2175216B1
EP2175216B1 EP08166234.8A EP08166234A EP2175216B1 EP 2175216 B1 EP2175216 B1 EP 2175216B1 EP 08166234 A EP08166234 A EP 08166234A EP 2175216 B1 EP2175216 B1 EP 2175216B1
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EP
European Patent Office
Prior art keywords
compressor
refrigerator
temperature
fresh food
compartment
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.)
Active
Application number
EP08166234.8A
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English (en)
French (fr)
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EP2175216A1 (de
Inventor
Davide Vitti
Jutta Ziermaier
Gioele Rivis
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.)
Whirlpool Corp
Original Assignee
Whirlpool Corp
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 Whirlpool Corp filed Critical Whirlpool Corp
Priority to EP08166234.8A priority Critical patent/EP2175216B1/de
Priority to PL08166234T priority patent/PL2175216T3/pl
Publication of EP2175216A1 publication Critical patent/EP2175216A1/de
Application granted granted Critical
Publication of EP2175216B1 publication Critical patent/EP2175216B1/de
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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
    • 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
    • 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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • 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
    • F25D2700/12—Sensors measuring the inside temperature
    • F25D2700/121—Sensors measuring the inside temperature of particular compartments

Definitions

  • the present invention relates to a control method for controlling a refrigerator and a refrigerator comprising a fresh food compartment with a temperature sensor device and a freezer compartment, the refrigerator comprising a refrigerating circuit with compressor, evaporator, condenser and a control unit connected to the temperature sensor device and to the compressor, performing the control method.
  • a refrigerator of this type is disclosed by EP-A-0967449 .
  • a control method according to the preamble of claim 1 is known therefrom.
  • the major problem of this kind of low cost refrigerators is to guarantee proper performances, particularly of the freezer compartment, at low ambient temperatures, for instance in the range from 8° to 15°C, and according to international standards at 10°C.
  • the appliances currently in production for the European market present a heater in contact with the plastic liner wall and foamed in the insulation. Such heater "foamed in” in the cabinet is activated when ambient temperature is lower than a predetermined value, in order to inject heat in the fresh food compartment of the refrigerator and therefore to force a compressor activation to preserve temperature in the freezer compartment, typically below -18°C.
  • FIG 2 it is shown an example of this kind of known structure with additional heater.
  • the reference L it is indicated the liner without the insulation foam, in which a cavity L1 for the freezer compartment and a cavity L2 for the fresh food compartment are shown.
  • An evaporator E is fixed to both the cavities, and on the lower portion of the cavity L2 a heater H is fixed, for instance by means of an adhesive.
  • control unit of the appliance for instance a microprocessor
  • the control unit of the appliance is continuously measuring the time elapsed from the last insertion of the compressor and comparing it to a predetermined threshold value.
  • the electronic is able through a dedicated algorithm to link such time elapsed from the last insertion to ambient temperature and switch-on the compressor (if needed) to keep the fridge + freezer compartment temperature in the correct range of desired temperature values.
  • control unit of the refrigerator is capable of passing from a first control pattern based to the assessment of the non-insertion time (typical of low ambient temperature) to a second control pattern based on the compressor activation on the basis of the temperature of the fresh food compartment.
  • a refrigerator 10 presents a cavity 10a having a fresh food compartment 12 and a freezer compartment 14.
  • the overall cavity is closed by a door 16, and the freezer "4 stars" compartment is closed by a small auxiliary door 18.
  • the refrigerator according to the invention does not present any heater, which moreover increases the overall efficiency of the refrigerator.
  • the refrigerator according to the invention can switch from a traditional control pattern, in which the compressor is switched-on and off depending on the temperature inside the cavity, particularly the temperature inside the fresh food compartment 12, to a control pattern in which the activation of the compressor is driven by the time elapsed from the last activation of the compressor.
  • the switch zone between such two patterns can be seen in the zone of the diagram where the ambient temperature Ta passes from 20°C to around 13°C.
  • Tm is shown the temperature of the fresh food compartment 12, with Te the average temperature of the evaporator and with Tz the temperature in the freezer compartment 14.
  • the line C it is indicated the switching on/off of the compressor.
  • warmest pack is meant the temperature of the warmest test package contained in the freezer compartment.
  • the compressor is forced to cycle with 12' ON and 65' OFF time at least 5 times until the compressor will be switched on as requested by fridge temperature probe before 110' from the last switching off. If the temperature probe does not request the compressor activation (which means that the ambient temperature remains low) then the forced cycling should be repeated for 5 times.

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  • 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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Claims (5)

  1. Steuerverfahren zum Steuern eines Kühlschranks mit einem Fach für frische Lebensmittel (12) und einem Gefrierfach (14), wobei ein Kompressor des Kühlkreises angeschaltet wird, wenn die Temperatur im Fach für frische Lebensmittel (12) höher als ein vorbestimmter Wert ist und wobei die Zeit, die seit der letzten Aktivierung des Kompressors vergangen ist, ausgewertet wird und der Kompressor angeschaltet wird, wenn ein derart ausgewerteter Wert höher als ein vorbestimmter Schwellwert ist, dadurch gekennzeichnet, dass nachdem der Kompressor auf Basis der besagten vergangenen Zeit angeschaltet worden ist, der Kompressor für eine vorbestimmte Anzahl von Malen an- und ausgeschaltet wird für eine vorbestimmte Anschalt- und Ausschaltzeit und dass dann das Steuern auf Basis der Temperatur des Fachs für frische Lebensmittel oder auf Basis der besagten vergangenen Zeit wiederholt wird.
  2. Kühlschrank umfassend ein Fach für frische Lebensmittel (12) mit einem Temperatursensorgerät und einem Gefrierfach (14), wobei der Kühlschrank einen Kühlkreislauf mit einem Kompressor, einem Verdampfer, einem Kondensator und einer Steuerschaltung umfasst, die mit dem besagten Temperatursensorgerät und dem besagten Kompressor verbunden ist, wobei die Steuereinheit ein Steuerverfahren nach Anspruch 1 ausführt.
  3. Kühlschrank nach Anspruch 2, wobei die Steuereinheit dazu eingerichtet ist, automatisch von einem Steuerschema, das auf der Zeit, die seit der letzten Aktivierung des Kompressors vergangen ist, basiert, zu einem Steuerschema, das auf der durch das Temperatursensorgerät gemessenen Temperatur basiert, und umgekehrt umzuschalten.
  4. Kühlschrank nach Anspruch 2 oder 3, wobei das Fachfür frische Lebensmittel (12) und das Gefrierfach (14) durch eine einzige Haupttür (16) geschlossen werden.
  5. Kühlschrank nach einem der vorherigen Ansprüche, wobei das Gefrierfach (14) mit einer zusätzlichen Tür (18) ausgestattet ist.
EP08166234.8A 2008-10-09 2008-10-09 Eintüriger Kühlschrank und Verfahren zur Steuerung des Kühlschranks Active EP2175216B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08166234.8A EP2175216B1 (de) 2008-10-09 2008-10-09 Eintüriger Kühlschrank und Verfahren zur Steuerung des Kühlschranks
PL08166234T PL2175216T3 (pl) 2008-10-09 2008-10-09 Chłodziarka jednodrzwiowa i sposób sterowania taką chłodziarką

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08166234.8A EP2175216B1 (de) 2008-10-09 2008-10-09 Eintüriger Kühlschrank und Verfahren zur Steuerung des Kühlschranks

Publications (2)

Publication Number Publication Date
EP2175216A1 EP2175216A1 (de) 2010-04-14
EP2175216B1 true EP2175216B1 (de) 2015-06-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08166234.8A Active EP2175216B1 (de) 2008-10-09 2008-10-09 Eintüriger Kühlschrank und Verfahren zur Steuerung des Kühlschranks

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EP (1) EP2175216B1 (de)
PL (1) PL2175216T3 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2433073B1 (de) * 2009-05-22 2015-10-14 Arçelik Anonim Sirketi Kältegerät mit zwei fächern
WO2014067714A2 (en) * 2012-10-30 2014-05-08 Arcelik Anonim Sirketi A cooling device comprising bimetal switch
CN103822429B (zh) * 2014-02-25 2016-02-10 四川长虹电器股份有限公司 一种提示最适存储食物的方法和冰箱

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4292813A (en) * 1979-03-08 1981-10-06 Whirlpool Corporation Adaptive temperature control system
US5960639A (en) * 1997-01-23 1999-10-05 Intellidyne, Llc Apparatus for regulating compressor cycles to improve air conditioning/refrigeration unit efficiency
DE19828061C1 (de) 1998-06-24 1999-12-23 Danfoss As Verfahren zur Regelung der Temperatur eines Kühlmöbels und Temperaturregelvorrichtung für ein Kühlmöbel
IT1301875B1 (it) * 1998-07-29 2000-07-07 Whirlpool Co Controllo autoadattivo per la regolazione di frigoriferi e congelatori
US6342840B1 (en) * 2000-07-25 2002-01-29 Hoshizaki America, Inc. Service controller for temperature-controlled appliances
EP1524484A1 (de) * 2003-10-16 2005-04-20 Whirlpool Corporation Kühlschrank

Also Published As

Publication number Publication date
EP2175216A1 (de) 2010-04-14
PL2175216T3 (pl) 2015-09-30

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