EP0721092A3 - Controlling defrost in a refrigerated compartment - Google Patents

Controlling defrost in a refrigerated compartment Download PDF

Info

Publication number
EP0721092A3
EP0721092A3 EP95120450A EP95120450A EP0721092A3 EP 0721092 A3 EP0721092 A3 EP 0721092A3 EP 95120450 A EP95120450 A EP 95120450A EP 95120450 A EP95120450 A EP 95120450A EP 0721092 A3 EP0721092 A3 EP 0721092A3
Authority
EP
European Patent Office
Prior art keywords
compressor
defrost
refrigerated compartment
ratchet
cam
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.)
Withdrawn
Application number
EP95120450A
Other languages
German (de)
French (fr)
Other versions
EP0721092A2 (en
Inventor
John P. Duve
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.)
Eaton Corp
Original Assignee
Eaton 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 Eaton Corp filed Critical Eaton Corp
Publication of EP0721092A2 publication Critical patent/EP0721092A2/en
Publication of EP0721092A3 publication Critical patent/EP0721092A3/en
Withdrawn legal-status Critical Current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
    • F25D21/004—Control mechanisms
    • 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

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

Abstract

An electromechanical defrost control system (10) for a refrigerator which uses the compressor cycling thermostat (14) to incrementally advance a ratchet (20) each compressor cycle. The ratchet (20) drives a cam (18) which closes a defrost heater selector switch (16) when a predetermined accumulated number of compressor cycles have occurred. Upon the compartment being heated, the thermostat (14) incrementally advances the cam (18) which returns the selector switch (16) to the compressor operating position and de-energizes the defrost heater (25).
EP95120450A 1995-01-06 1995-12-22 Controlling defrost in a refrigerated compartment Withdrawn EP0721092A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36960295A 1995-01-06 1995-01-06
US369602 1995-01-06

Publications (2)

Publication Number Publication Date
EP0721092A2 EP0721092A2 (en) 1996-07-10
EP0721092A3 true EP0721092A3 (en) 1998-01-14

Family

ID=23456125

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95120450A Withdrawn EP0721092A3 (en) 1995-01-06 1995-12-22 Controlling defrost in a refrigerated compartment

Country Status (5)

Country Link
EP (1) EP0721092A3 (en)
JP (1) JPH08254375A (en)
CN (1) CN1151507A (en)
BR (1) BR9600423A (en)
CA (1) CA2166571A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1293966B1 (en) * 1997-08-12 1999-03-15 Merloni Elettrodomestici Spa TEMPERATURE CONTROL SYSTEM IN A REFRIGERATOR CABINET.
JP6466682B2 (en) * 2014-10-15 2019-02-06 シャープ株式会社 Air conditioner
KR102354521B1 (en) 2015-03-05 2022-01-24 엘지이노텍 주식회사 Refrigerator
US11561037B2 (en) 2018-11-04 2023-01-24 Elemental Machines, Inc. Method and apparatus for determining freezer status
CN115200290B (en) * 2022-07-04 2023-10-27 珠海格力电器股份有限公司 Control method of refrigerator and refrigerator

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2166602A (en) * 1938-03-17 1939-07-18 Honeywell Regulator Co Refrigeration control system
US2711079A (en) * 1952-11-18 1955-06-21 Gen Electric Automatic refrigerator control
US2949016A (en) * 1955-01-05 1960-08-16 Robert H Thorner Defrosting control means for refrigeration apparatus
US3022640A (en) * 1959-08-11 1962-02-27 Whirlpool Co Home appliance
US3924416A (en) * 1973-09-11 1975-12-09 Amf Inc Refrigerator control apparatus
US4173871A (en) * 1977-12-27 1979-11-13 General Electric Company Refrigeration apparatus demand defrost control system and method
US4358933A (en) * 1981-01-19 1982-11-16 General Electric Company Household refrigerator defrost system
US4510765A (en) * 1982-02-05 1985-04-16 Ranco Incorporated Control unit for refrigerators or freezers

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2166602A (en) * 1938-03-17 1939-07-18 Honeywell Regulator Co Refrigeration control system
US2711079A (en) * 1952-11-18 1955-06-21 Gen Electric Automatic refrigerator control
US2949016A (en) * 1955-01-05 1960-08-16 Robert H Thorner Defrosting control means for refrigeration apparatus
US3022640A (en) * 1959-08-11 1962-02-27 Whirlpool Co Home appliance
US3924416A (en) * 1973-09-11 1975-12-09 Amf Inc Refrigerator control apparatus
US4173871A (en) * 1977-12-27 1979-11-13 General Electric Company Refrigeration apparatus demand defrost control system and method
US4358933A (en) * 1981-01-19 1982-11-16 General Electric Company Household refrigerator defrost system
US4510765A (en) * 1982-02-05 1985-04-16 Ranco Incorporated Control unit for refrigerators or freezers

Also Published As

Publication number Publication date
BR9600423A (en) 1998-03-03
CN1151507A (en) 1997-06-11
CA2166571A1 (en) 1996-07-07
EP0721092A2 (en) 1996-07-10
JPH08254375A (en) 1996-10-01

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