WO2010107536A3 - Microprocessor controlled defrost termination - Google Patents

Microprocessor controlled defrost termination Download PDF

Info

Publication number
WO2010107536A3
WO2010107536A3 PCT/US2010/024058 US2010024058W WO2010107536A3 WO 2010107536 A3 WO2010107536 A3 WO 2010107536A3 US 2010024058 W US2010024058 W US 2010024058W WO 2010107536 A3 WO2010107536 A3 WO 2010107536A3
Authority
WO
WIPO (PCT)
Prior art keywords
rate
temperature
evaporator
microprocessor controlled
defrost function
Prior art date
Application number
PCT/US2010/024058
Other languages
French (fr)
Other versions
WO2010107536A2 (en
Inventor
Scott Fulmer
Mark Perkovich
Donald Hotaling
Original Assignee
Carrier Corporation
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 Carrier Corporation filed Critical Carrier Corporation
Priority to US13/202,148 priority Critical patent/US20120042667A1/en
Priority to CN201080012316.2A priority patent/CN102356288B/en
Priority to EP10753838.1A priority patent/EP2409095B1/en
Publication of WO2010107536A2 publication Critical patent/WO2010107536A2/en
Publication of WO2010107536A3 publication Critical patent/WO2010107536A3/en

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
    • 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
    • F25D21/08—Removing frost by electric heating
    • 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

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)

Abstract

An apparatus and method are disclosed for terminating a refrigeration unit's defrost function. The refrigeration unit comprises an evaporator, a temperature sensor to measure the temperature of the evaporator during a defrost function, and a controller configured to calculate the rate of temperature change and terminate the defrost function when the rate meets a specified criteria, such as a predetermined rate or a sharp increase in the rate after the evaporator temperature has increased above the freezing point of water.
PCT/US2010/024058 2009-03-18 2010-02-12 Microprocessor controlled defrost termination WO2010107536A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US13/202,148 US20120042667A1 (en) 2009-03-18 2010-02-12 Microprocessor controlled defrost termination
CN201080012316.2A CN102356288B (en) 2009-03-18 2010-02-12 Microprocessor controlled defrost termination
EP10753838.1A EP2409095B1 (en) 2009-03-18 2010-02-12 Microprocessor controlled defrost termination

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16126909P 2009-03-18 2009-03-18
US61/161,269 2009-03-18

Publications (2)

Publication Number Publication Date
WO2010107536A2 WO2010107536A2 (en) 2010-09-23
WO2010107536A3 true WO2010107536A3 (en) 2010-11-11

Family

ID=42740164

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2010/024058 WO2010107536A2 (en) 2009-03-18 2010-02-12 Microprocessor controlled defrost termination

Country Status (4)

Country Link
US (1) US20120042667A1 (en)
EP (1) EP2409095B1 (en)
CN (1) CN102356288B (en)
WO (1) WO2010107536A2 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9127875B2 (en) 2011-02-07 2015-09-08 Electrolux Home Products, Inc. Variable power defrost heater
US9387502B2 (en) 2013-03-15 2016-07-12 Regal Beloit America, Inc. Schedule advance for pump motor controller
US9354636B2 (en) 2013-03-15 2016-05-31 Regal Beloit America, Inc. User-interface for pump system
US9885351B2 (en) 2013-03-15 2018-02-06 Regal Beloit America, Inc. System and method of controlling a pump system using integrated digital inputs
DE102013218429A1 (en) * 2013-09-13 2015-04-02 Robert Bosch Gmbh Method for deicing a heat pump
CN103591669B (en) * 2013-10-18 2016-03-30 广东美的制冷设备有限公司 The antifrost method of air-conditioning equipment and antifrost device, air-conditioning equipment
US9933200B2 (en) * 2013-11-27 2018-04-03 Lennox Industries Inc. Defrost operation management
KR102173371B1 (en) * 2014-01-06 2020-11-03 엘지전자 주식회사 Refrigerator and home appliance
KR102220911B1 (en) * 2014-01-06 2021-02-25 엘지전자 주식회사 Refrigerator and home appliance
WO2018020653A1 (en) * 2016-07-29 2018-02-01 三菱電機株式会社 Freezer-refrigerator
DE102016220163A1 (en) * 2016-10-14 2018-04-19 BSH Hausgeräte GmbH Refrigeration unit with dehydrating function and operating method for it
KR20180120975A (en) * 2017-04-28 2018-11-07 엘지전자 주식회사 Refrigerator and Controlling method for the same
KR102418143B1 (en) * 2017-04-28 2022-07-07 엘지전자 주식회사 Refrigerator and Controlling method for the same
ES2894502T3 (en) * 2018-06-22 2022-02-14 Danfoss As A procedure to finish defrosting an evaporator
EP3587962B1 (en) 2018-06-22 2020-12-30 Danfoss A/S A method for terminating defrosting of an evaporator by use of air temperature measurements
EP3591316A1 (en) 2018-07-06 2020-01-08 Danfoss A/S Apparatus for removing non-condensable gases from a refrigerant
US11002475B1 (en) * 2019-05-30 2021-05-11 Illinois Tool Works Inc. Refrigeration system with evaporator temperature sensor failure detection and related methods
CN111964322B (en) * 2020-08-17 2022-03-04 创历电器(滁州)股份有限公司 Deicing method
CN114152365B (en) * 2022-02-07 2022-04-12 中国空气动力研究与发展中心低速空气动力研究所 Optical fiber icing sensor, system and method for critical anti-icing protection
CN114153249B (en) * 2022-02-07 2022-04-26 中国空气动力研究与发展中心低速空气动力研究所 High-precision optical fiber icing sensor, system and method
CN115371338B (en) * 2022-07-06 2023-07-18 西安交通大学 Defrosting control method for refrigerator

Citations (3)

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US6012294A (en) * 1997-12-18 2000-01-11 Fujitsu General Limited Air conditioner control method and apparatus of the same
JP3103275B2 (en) * 1994-09-27 2000-10-30 株式会社東芝 Refrigerator defroster
JP4167083B2 (en) * 2003-01-31 2008-10-15 三菱重工業株式会社 Air conditioner and method for controlling defrost of air conditioner

Family Cites Families (15)

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DE3001019A1 (en) * 1980-01-12 1981-07-23 Danfoss A/S, 6430 Nordborg DEFROSTING DEVICE FOR THE EVAPORATOR OF A REFRIGERATION SYSTEM
US4285204A (en) * 1980-02-28 1981-08-25 Emhart Industries, Inc. Defrosting problem areas of refrigerated display cases
US4689965A (en) * 1985-12-27 1987-09-01 Whirlpool Corporation Adaptive defrost control for a refrigerator
US4662184A (en) * 1986-01-06 1987-05-05 General Electric Company Single-sensor head pump defrost control system
US4974418A (en) * 1988-10-12 1990-12-04 Honeywell Inc. Heat pump defrosting operation
US5046324A (en) * 1990-06-20 1991-09-10 Sanyo Electric Co., Ltd. Defrosting controller for refrigeration systems
KR0182534B1 (en) * 1994-11-17 1999-05-01 윤종용 Defrosting device and its control method of a refrigerator
KR100271974B1 (en) * 1998-08-31 2000-11-15 전주범 De-frost control method
US6205800B1 (en) * 1999-05-12 2001-03-27 Carrier Corporation Microprocessor controlled demand defrost for a cooled enclosure
BR9906192A (en) * 1999-12-13 2001-09-18 Multibras Eletrodomesticos Sa Automatic defrosting system and method for refrigeration equipment
US6606870B2 (en) * 2001-01-05 2003-08-19 General Electric Company Deterministic refrigerator defrost method and apparatus
CN1215295C (en) * 2001-04-18 2005-08-17 广东科龙电器股份有限公司 Air conditioner and its defrosting method
US7228692B2 (en) * 2004-02-11 2007-06-12 Carrier Corporation Defrost mode for HVAC heat pump systems
JP3786133B1 (en) * 2005-03-03 2006-06-14 ダイキン工業株式会社 Air conditioner
US7275376B2 (en) * 2005-04-28 2007-10-02 Dover Systems, Inc. Defrost system for a refrigeration device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3103275B2 (en) * 1994-09-27 2000-10-30 株式会社東芝 Refrigerator defroster
US6012294A (en) * 1997-12-18 2000-01-11 Fujitsu General Limited Air conditioner control method and apparatus of the same
JP4167083B2 (en) * 2003-01-31 2008-10-15 三菱重工業株式会社 Air conditioner and method for controlling defrost of air conditioner

Also Published As

Publication number Publication date
EP2409095B1 (en) 2019-04-24
US20120042667A1 (en) 2012-02-23
EP2409095A4 (en) 2015-07-29
EP2409095A2 (en) 2012-01-25
CN102356288B (en) 2014-03-05
WO2010107536A2 (en) 2010-09-23
CN102356288A (en) 2012-02-15

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