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EP1037003A3 - Freezing apparatus - Google Patents

Freezing apparatus Download PDF

Info

Publication number
EP1037003A3
EP1037003A3 EP99125803A EP99125803A EP1037003A3 EP 1037003 A3 EP1037003 A3 EP 1037003A3 EP 99125803 A EP99125803 A EP 99125803A EP 99125803 A EP99125803 A EP 99125803A EP 1037003 A3 EP1037003 A3 EP 1037003A3
Authority
EP
European Patent Office
Prior art keywords
compressor
fan
evaporator
during
freezer
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.)
Granted
Application number
EP99125803A
Other languages
German (de)
French (fr)
Other versions
EP1037003A2 (en
EP1037003B1 (en
Inventor
Matthias Wiest
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.)
Liebherr Hausgeraete Ochsenhausen GmbH
Original Assignee
LIEBHERR-HAUSGERAETE GmbH
Liebherr Hausgeraete Ochsenhausen GmbH
Liebherr Hausgeraete GmbH
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 LIEBHERR-HAUSGERAETE GmbH, Liebherr Hausgeraete Ochsenhausen GmbH, Liebherr Hausgeraete GmbH filed Critical LIEBHERR-HAUSGERAETE GmbH
Publication of EP1037003A2 publication Critical patent/EP1037003A2/en
Publication of EP1037003A3 publication Critical patent/EP1037003A3/en
Application granted granted Critical
Publication of EP1037003B1 publication Critical patent/EP1037003B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • F25B49/022—Compressor control arrangements
    • 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

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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Saccharide Compounds (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The freezer has a fan that forces ambient air to be cooled over an evaporator of a coolant circuit contg. a compressor and a condenser and a heater that thaws the evaporator during thawing phases, during which the compressor and fan are pref. not operating. A controller lowers the temp. in the freezer compartment or of the frozen goods to below the desired value before each thawing phase.
EP99125803A 1999-03-17 1999-12-23 Freezing apparatus Expired - Lifetime EP1037003B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19911979 1999-03-17
DE19911979A DE19911979A1 (en) 1999-03-17 1999-03-17 Freezer

Publications (3)

Publication Number Publication Date
EP1037003A2 EP1037003A2 (en) 2000-09-20
EP1037003A3 true EP1037003A3 (en) 2000-10-25
EP1037003B1 EP1037003B1 (en) 2003-06-25

Family

ID=7901358

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99125803A Expired - Lifetime EP1037003B1 (en) 1999-03-17 1999-12-23 Freezing apparatus

Country Status (4)

Country Link
EP (1) EP1037003B1 (en)
AT (1) ATE243452T1 (en)
DE (2) DE19911979A1 (en)
ES (1) ES2203000T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112050532A (en) * 2020-09-15 2020-12-08 长虹美菱股份有限公司 Single-system refrigerator constant-temperature chamber and control method thereof
IT202100000182A1 (en) * 2021-01-07 2022-07-07 Carel Ind Spa METHOD OF OPERATING A REFRIGERATOR EQUIPMENT AND REFRIGERATOR EQUIPMENT
CN114353299B (en) * 2021-12-07 2023-06-16 珠海格力电器股份有限公司 Control method of air conditioning system and air conditioning system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569205A (en) * 1983-07-25 1986-02-11 Kabushiki Kaisha Toshiba Electric refrigerator having improved freezing and defrosting characteristics
US4646536A (en) * 1984-10-05 1987-03-03 Kabushiki Kaisha Toshiba Refrigeration with automatic defrost and rapid cooling
US5038575A (en) * 1987-02-14 1991-08-13 Kabushiki Kaisha Toshiba Refrigerator with defrost override system
JPH09138045A (en) * 1995-11-15 1997-05-27 Matsushita Refrig Co Ltd Operation control device for refrigerator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569205A (en) * 1983-07-25 1986-02-11 Kabushiki Kaisha Toshiba Electric refrigerator having improved freezing and defrosting characteristics
US4646536A (en) * 1984-10-05 1987-03-03 Kabushiki Kaisha Toshiba Refrigeration with automatic defrost and rapid cooling
US5038575A (en) * 1987-02-14 1991-08-13 Kabushiki Kaisha Toshiba Refrigerator with defrost override system
JPH09138045A (en) * 1995-11-15 1997-05-27 Matsushita Refrig Co Ltd Operation control device for refrigerator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 09 30 September 1997 (1997-09-30) *

Also Published As

Publication number Publication date
DE59906091D1 (en) 2003-07-31
ATE243452T1 (en) 2003-07-15
EP1037003A2 (en) 2000-09-20
ES2203000T3 (en) 2004-04-01
EP1037003B1 (en) 2003-06-25
DE19911979A1 (en) 2000-09-28

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