EP2719978B1 - Verfahren zur Regelung eines Haushaltskältegerät - Google Patents

Verfahren zur Regelung eines Haushaltskältegerät Download PDF

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Publication number
EP2719978B1
EP2719978B1 EP12188551.1A EP12188551A EP2719978B1 EP 2719978 B1 EP2719978 B1 EP 2719978B1 EP 12188551 A EP12188551 A EP 12188551A EP 2719978 B1 EP2719978 B1 EP 2719978B1
Authority
EP
European Patent Office
Prior art keywords
temperature
heat exchanger
cavity
defrost
refrigeration appliance
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
EP12188551.1A
Other languages
English (en)
French (fr)
Other versions
EP2719978A1 (de
Inventor
Matteo Luciano Vanelli
Francesco Del Bello
Mariagrazia D'Auria
Jutta Ziermaier
Paolo Sicher
Davide Guatta
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 EP12188551.1A priority Critical patent/EP2719978B1/de
Priority to PL12188551T priority patent/PL2719978T3/pl
Publication of EP2719978A1 publication Critical patent/EP2719978A1/de
Application granted granted Critical
Publication of EP2719978B1 publication Critical patent/EP2719978B1/de
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
    • F25D21/002—Defroster control
    • F25D21/006—Defroster control with electronic control circuits
    • 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
    • F25D21/02—Detecting the presence 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/10—Sensors measuring the temperature of the evaporator
    • 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

  • Defrost_counter ⁇ 0 t ⁇ T RC - T RC evap
  • T RC is the temperature measured in the cavity
  • T RC evap is the temperature of the evaporator.
  • Defrost_counter is measured in degree Celsius multiplied by second.
  • the need of a defrost cycle is assessed in close loop, basing on frost formation estimation.
  • the differences compared to standard open loop method can be less significant, especially in case of no frost appliances, where defrost already occurs every 72 hours. Differences compared with actual solutions are more evident in case of direct cooled evaporators, where defrost is usually performed every single compressor ON/OFF cycle, particularly when used in fresh food compartment.

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)
  • Defrosting Systems (AREA)

Claims (9)

  1. Verfahren zur Steuerung eines Haushalts-Kühlgeräts (10), das einen Wärmeaustauscher (14c), einen ersten Temperatursensor (18), der in dem Hohlraum (12) des Kühlgeräts (10) angeordnet ist, und einen zweiten Temperatursensor (20), der an dem Wärmeaustauscher (14c) oder in dessen Nähe angeordnet ist, umfasst, dadurch gekennzeichnet, dass es das Schätzen einer Eismenge an dem Wärmeaustauscher (14c) auf der Basis eines Zeitintegrals des Unterschieds zwischen der Temperatur des Hohlraums (12) und der Temperatur des Wärmeaustauschers (14c), und das Vornehmen eines Abtauzyklus, wenn das obige Integral über einem vorbestimmten Schwellenwert liegt, umfasst.
  2. Verfahren nach Anspruch 1, wobei der vorbestimmte Schwellenwert das Integral des Unterschieds zwischen der Temperatur des Hohlraums (12) und der Temperatur des Wärmeaustauschers (14c) in einer vorbestimmten Zeitspanne ist.
  3. Verfahren nach Anspruch 2, wobei die vorbestimmte Zeitspanne ungefähr 72 Stunden beträgt.
  4. Verfahren nach Anspruch 1, wobei der vorbestimmte Schwellenwert auf der Basis von mehreren Parametern einschließlich Zeitzählern der Kompressor-EIN-Phase, der Elektroventil-EIN-Phase, der Zeit zwischen zwei Kompressor-EIN-Phasen, Temperaturmessungen, und elektrischen Parametern eingeschätzt wird.
  5. Verfahren nach einem der vorhergehenden Ansprüche, wobei der Wärmeaustauscher ein Verdampfer (14c) ist.
  6. Kühlgerät (10), umfassend einen Wärmeaustauscher (14c), einen ersten Temperatursensor (18), der in dem Hohlraum (12) des Kühlgeräts (10) angeordnet ist, einen zweiten Temperatursensor (20), der an dem Wärmeaustauscher (14c) oder in dessen Nähe angeordnet ist, und eine Steuerprozesseinheit (16) zur Steuerung des Betriebs des Kühlgeräts (10), dadurch gekennzeichnet, dass die Steuerprozesseinheit (16) dazu geeignet ist, eine Eismenge an dem Wärmeaustauscher (14c) auf der Basis eines Zeitintegrals des Unterschieds zwischen der Temperatur des Hohlraums (12) und der Temperatur des Wärmeaustauschers (14c) zu schätzen, und einen Abtauzyklus vorzunehmen, wenn das obige Integral über einem vorbestimmten Schwellenwert liegt.
  7. Kühlgerät nach Anspruch 6, wobei der Hohlraum (12) ein Fach für frische Lebensmittel ist.
  8. Kühlgerät nach Anspruch 6, wobei der Hohlraum (12) ein Gefrierfach ist.
  9. Kühlgerät nach einem der Ansprüche 6 bis 8, wobei der Wärmeaustauscher ein Verdampfer (14c) ist.
EP12188551.1A 2012-10-15 2012-10-15 Verfahren zur Regelung eines Haushaltskältegerät Not-in-force EP2719978B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12188551.1A EP2719978B1 (de) 2012-10-15 2012-10-15 Verfahren zur Regelung eines Haushaltskältegerät
PL12188551T PL2719978T3 (pl) 2012-10-15 2012-10-15 Sposób sterowania domowym urządzeniem chłodniczym

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12188551.1A EP2719978B1 (de) 2012-10-15 2012-10-15 Verfahren zur Regelung eines Haushaltskältegerät

Publications (2)

Publication Number Publication Date
EP2719978A1 EP2719978A1 (de) 2014-04-16
EP2719978B1 true EP2719978B1 (de) 2015-06-17

Family

ID=47357890

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12188551.1A Not-in-force EP2719978B1 (de) 2012-10-15 2012-10-15 Verfahren zur Regelung eines Haushaltskältegerät

Country Status (2)

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EP (1) EP2719978B1 (de)
PL (1) PL2719978T3 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20121677A1 (it) * 2012-10-08 2014-04-09 Dixell S R L Societa Unipersonale Sistema di controllo per apparati e sistemi refrigerati con avanzate funzioni di risparmio energetico
CN104457106B (zh) * 2014-11-10 2016-08-17 海信（山东）冰箱有限公司 一种直冷冰箱的除霜方法及直冷冰箱
DE102023200198A1 (de) 2023-01-12 2024-07-18 BSH Hausgeräte GmbH Bestimmen eines Abtauzeitpunkts eines Verdampfers eines Haushalts-Kältegeräts

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2085868A (en) * 1933-11-14 1937-07-06 Servel Inc Refrigerating apparatus and method of operation thereof
GB2133867B (en) * 1983-01-21 1986-06-11 Newtech Controls Ltd Defrost control means
EP0285690A1 (de) * 1987-04-08 1988-10-12 Viessmann Werke GmbH & Co. Verfahren und Vorrichtung zur temperaturabhängigen Bedarfsabtauung von Kühlanlagen
DE10053422A1 (de) * 2000-10-27 2002-05-08 Bsh Bosch Siemens Hausgeraete Kältegerät mit Abtau-Automatik
US6715304B1 (en) 2002-12-05 2004-04-06 Lyman W. Wycoff Universal refrigerant controller
GB2456744A (en) * 2007-08-30 2009-07-29 Ebac Ltd Auto-defrost refrigeration apparatus
KR20110007334A (ko) 2009-07-16 2011-01-24 위니아만도 주식회사 냉장고 제상방법

Also Published As

Publication number Publication date
PL2719978T3 (pl) 2015-10-30
EP2719978A1 (de) 2014-04-16

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