EP2189740A3 - Cooling system with a unit for determining the amount of frost and method of controlling such a system - Google Patents

Cooling system with a unit for determining the amount of frost and method of controlling such a system Download PDF

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Publication number
EP2189740A3
EP2189740A3 EP09167220A EP09167220A EP2189740A3 EP 2189740 A3 EP2189740 A3 EP 2189740A3 EP 09167220 A EP09167220 A EP 09167220A EP 09167220 A EP09167220 A EP 09167220A EP 2189740 A3 EP2189740 A3 EP 2189740A3
Authority
EP
European Patent Office
Prior art keywords
oscillatory wave
amount
cooling system
unit
refrigerant
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Withdrawn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
EP09167220A
Other languages
German (de)
French (fr)
Other versions
EP2189740A2 (en
Inventor
Jeong Su Han
Sang Jun Lee
Kook Jeong Seo
Ho Yoon
Jung Hyeon Kim
Hyen Young Choi
O Do Ryu
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of EP2189740A2 publication Critical patent/EP2189740A2/en
Publication of EP2189740A3 publication Critical patent/EP2189740A3/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Withdrawn legal-status Critical Current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
    • F25D21/02—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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/11—Sensor to detect if defrost is necessary
    • F25B2700/111—Sensor to detect if defrost is necessary using an emitter and receiver, e.g. sensing by emitting light or other radiation and receiving reflection by a sensor

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 oscillatory wave generating unit and an oscillatory wave sensing unit are installed at both ends of a refrigerant pipe of an evaporator of the cooling system, an amount of frost formed on the refrigerant pipe is determined by comparing a wave form of an oscillatory wave generated from one end of the refrigerant through the oscillatory wave generating unit and a wave form of the oscillatory wave sensed by the other one end of the refrigerant through the oscillatory wave sensing unit, and whether or not a defrosting operation is performed is determined by a result of the determination. The cooling system increases the accuracy in sensing the amount of the frost formed on the evaporator of a refrigerator, a Kimchi refrigerator, or an air conditioner, and respectively starts and ends the defrosting operation at proper points of time, thus enhancing a heat-exchanging performance and increasing energy efficiency.
EP09167220A 2008-11-25 2009-08-05 Cooling system with a unit for determining the amount of frost and method of controlling such a system Withdrawn EP2189740A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080117363A KR20100058813A (en) 2008-11-25 2008-11-25 Cooling system and method for controlling the same

Publications (2)

Publication Number Publication Date
EP2189740A2 EP2189740A2 (en) 2010-05-26
EP2189740A3 true EP2189740A3 (en) 2011-04-27

Family

ID=42046396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09167220A Withdrawn EP2189740A3 (en) 2008-11-25 2009-08-05 Cooling system with a unit for determining the amount of frost and method of controlling such a system

Country Status (3)

Country Link
US (1) US20100126191A1 (en)
EP (1) EP2189740A3 (en)
KR (1) KR20100058813A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104121755A (en) * 2014-08-11 2014-10-29 无锡北斗星通信息科技有限公司 Detecting and warning system for ice accumulation on inner side of back of refrigerator body

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10315523A1 (en) * 2003-04-04 2004-10-14 BSH Bosch und Siemens Hausgeräte GmbH Refrigerator with adaptive automatic defrost and defrosting process for it
EP2673580A4 (en) * 2011-02-09 2017-04-26 Control Products, Inc. System, apparatus, and method for ice detection
JP5897994B2 (en) * 2012-06-06 2016-04-06 シャープ株式会社 Air conditioner
EP2743615B1 (en) * 2012-12-14 2020-10-07 Whirlpool Corporation Method for controlling the defrost of an evaporator in a refrigeration appliance
KR102336200B1 (en) * 2014-12-24 2021-12-08 삼성전자주식회사 Refrigerator
CN113357865A (en) 2016-01-29 2021-09-07 Lg电子株式会社 Refrigerator with a door
KR102292004B1 (en) * 2017-04-11 2021-08-23 엘지전자 주식회사 Refrigerator
CN109990563B (en) * 2017-12-29 2021-01-01 青岛海尔股份有限公司 Air-cooled refrigerator and control method thereof
KR102454847B1 (en) * 2021-04-16 2022-10-26 최철호 Operation method of high efficiency storage system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2555715A1 (en) * 1983-11-25 1985-05-31 Applic Thermique Cie Indle Device for detecting the formation of frost on fin-type exchangers
US4860551A (en) * 1987-12-29 1989-08-29 Whirlpool Corporation Frost sensor for an appliance

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR900000643B1 (en) * 1959-03-26 1990-02-02 산요덴끼 가부시기가이샤 Inverter apparatus
US4312228A (en) * 1979-07-30 1982-01-26 Henry Wohltjen Methods of detection with surface acoustic wave and apparati therefor
DE3001019A1 (en) * 1980-01-12 1981-07-23 Danfoss A/S, 6430 Nordborg DEFROSTING DEVICE FOR THE EVAPORATOR OF A REFRIGERATION SYSTEM
JPS5712329A (en) * 1980-06-25 1982-01-22 Hitachi Ltd Frost sensor
US4347709A (en) * 1981-01-19 1982-09-07 Honeywell Inc. Demand defrost sensor
US4461178A (en) * 1982-04-02 1984-07-24 The Charles Stark Draper Laboratory, Inc. Ultrasonic aircraft ice detector using flexural waves
US4649713A (en) * 1984-05-21 1987-03-17 Bezek Donald J Microwave ice detector
US4651535A (en) * 1984-08-08 1987-03-24 Alsenz Richard H Pulse controlled solenoid valve
JPH0886557A (en) * 1994-09-19 1996-04-02 Ishizuka Denshi Kk Frost detector
EP0881442B1 (en) * 1996-02-06 2002-07-03 Ishizuka Electronics Corporation Frost formation detector
US6321588B1 (en) * 1998-09-11 2001-11-27 Femtometrics, Inc. Chemical sensor array
JP2004340622A (en) * 2003-05-13 2004-12-02 Kazumasa Onishi Method of measuring flow rate of fluid moving in tubular or ditch-like flow passage

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2555715A1 (en) * 1983-11-25 1985-05-31 Applic Thermique Cie Indle Device for detecting the formation of frost on fin-type exchangers
US4860551A (en) * 1987-12-29 1989-08-29 Whirlpool Corporation Frost sensor for an appliance

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104121755A (en) * 2014-08-11 2014-10-29 无锡北斗星通信息科技有限公司 Detecting and warning system for ice accumulation on inner side of back of refrigerator body
CN104121755B (en) * 2014-08-11 2015-11-25 顾祥茂 Refrigerator body posterior medial accumulated ice detection alarm system

Also Published As

Publication number Publication date
US20100126191A1 (en) 2010-05-27
EP2189740A2 (en) 2010-05-26
KR20100058813A (en) 2010-06-04

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