US20090064689A1 - Supercooling apparatus and its method - Google Patents

Supercooling apparatus and its method Download PDF

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Publication number
US20090064689A1
US20090064689A1 US12/279,512 US27951208A US2009064689A1 US 20090064689 A1 US20090064689 A1 US 20090064689A1 US 27951208 A US27951208 A US 27951208A US 2009064689 A1 US2009064689 A1 US 2009064689A1
Authority
US
United States
Prior art keywords
contents
supercooling
energy
temperature
freezing
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.)
Abandoned
Application number
US12/279,512
Other languages
English (en)
Inventor
Su-Cheong Kim
Jong-Min Shin
Su-Won Lee
Cheol-Hwan Kim
Yong-Chol Kwon
Ku-Young Son
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.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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
Priority claimed from KR1020060014692A external-priority patent/KR101284592B1/ko
Priority claimed from KR1020060061695A external-priority patent/KR20080003139A/ko
Priority claimed from KR1020060061698A external-priority patent/KR20080003141A/ko
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Assigned to LG ELECTRONICS, INC. reassignment LG ELECTRONICS, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KIM, CHEOL-HWAN, KIM, SU-CHEONG, KWON, YONG-CHOL, LEE, SU-WON, SHIN, JONG-MIN, SON, KU-YOUNG
Publication of US20090064689A1 publication Critical patent/US20090064689A1/en
Abandoned legal-status Critical Current

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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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B2/00—Preservation of foods or foodstuffs, in general
    • A23B2/80—Freezing; Subsequent thawing; Cooling
    • 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
    • F25D23/00—General constructional features
    • F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
    • 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
    • F25D2600/00—Control issues
    • F25D2600/06—Controlling according to a predetermined profile
    • 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
    • F25D2700/02—Sensors detecting door opening
    • 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
    • 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
    • F25D2700/16—Sensors measuring the temperature of products

Definitions

  • Another object of the present invention is to provide an apparatus and method for supercooling which can stably maintain the contents in a supercooled state at a low temperature.
  • FIG. 4 shows the processes of taking energy Q 1 and supplying energy Q 2 .
  • a measured temperature C of water is lowered to 0° C. (1 air pressure) which is a phase transition temperature, and then to ⁇ 7° C. as shown in FIG. 1 .
  • energy Q 2 is supplied to water, for maintaining water in a liquid state below the phase transition temperature.
  • the process of supplying energy Q 2 and the process of taking energy Q 1 are carried cut at the same time, they must use energy sources which do not affect each other. For example, if both processes use heat energy in the same manner, they affect each other. In this case, it cannot be applied to the present invention.
  • energy Q 2 must be generated from an energy source influencing the motion of the water molecules.
  • the microcomputer 90 makes the voltage generating unit 40 apply 0.91 kV (6.76 mA) and 20 kHz of Ac voltage to the electrode unit 50 , and the temperature of the storing space is about ⁇ 7° C. As shown in the supercooling graph of FIG. 9 , since the non-freezing refrigerator 100 maintains supercooling at ⁇ 6.5° C. below the phase transition temperature, it keeps the non-frozen state of water over 50 hours.
  • FIG. 19 is a control graph of a method for supercooling in accordance with a fifth embodiment of the present invention.
  • the control graph of FIG. 19 shows a temperature curve of the storing space A or B or the contents, and corresponds to the control process of S 106 of FIG. 18 .
  • the microcomputer 90 turns off the electric field for t 2 to t 3 , and turns on the electric field in t 3 in a second on section, thereby discontinuously executing the non-freezing mode.
  • the non-frozen state of the storing space A or B or the contents is stably maintained in spite of the discontinuous execution of the non-freezing mode.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Zoology (AREA)
  • Polymers & Plastics (AREA)
  • Food Science & Technology (AREA)
  • Wood Science & Technology (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
US12/279,512 2006-02-15 2006-09-27 Supercooling apparatus and its method Abandoned US20090064689A1 (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
KR1020060014692A KR101284592B1 (ko) 2006-02-15 2006-02-15 냉장고
KR10-2006-0014692 2006-02-15
KR10-2006-0061698 2006-07-01
KR1020060061695A KR20080003139A (ko) 2006-07-01 2006-07-01 냉장고의 제어 방법
KR10-2006-0061695 2006-07-01
KR1020060061698A KR20080003141A (ko) 2006-07-01 2006-07-01 과냉각 장치 및 방법
KR10-2006-0061696 2006-07-01
KR20060061696 2006-07-01
PCT/KR2006/003851 WO2007094541A1 (fr) 2006-02-15 2006-09-27 Appareil de surfusion et procédé associé

Publications (1)

Publication Number Publication Date
US20090064689A1 true US20090064689A1 (en) 2009-03-12

Family

ID=38371701

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/279,512 Abandoned US20090064689A1 (en) 2006-02-15 2006-09-27 Supercooling apparatus and its method

Country Status (5)

Country Link
US (1) US20090064689A1 (fr)
EP (1) EP2003993A4 (fr)
AU (1) AU2006338352A1 (fr)
BR (1) BRPI0621353A2 (fr)
WO (1) WO2007094541A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100186421A1 (en) * 2007-09-17 2010-07-29 BSH Bosch und Siemens Hausgeräte GmbH Ice cube preparer and method for operating the ice cube preparer
US20110302940A1 (en) * 2008-12-16 2011-12-15 Lg Electronics, Inc. Refrigerator
US20120011880A1 (en) * 2009-01-08 2012-01-19 Lg Electronics, Inc. Cooling apparatus
CN114353422A (zh) * 2021-12-13 2022-04-15 珠海格力电器股份有限公司 分类装置、冰箱、分类方法和存储介质
US20220252335A1 (en) * 2019-10-09 2022-08-11 Panasonic Intellectual Property Management Co., Ltd. Refrigerator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101330449B1 (ko) * 2007-09-14 2013-11-15 엘지전자 주식회사 과냉각 방법 및 과냉각 장치
WO2010071324A2 (fr) * 2008-12-16 2010-06-24 엘지전자 주식회사 Réfrigérateur

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01139979A (ja) * 1987-11-27 1989-06-01 Matsushita Refrig Co Ltd 製氷器
US5194181A (en) * 1988-07-15 1993-03-16 The United States Of America As Represented By The Secretary Of The Navy Process for shaping articles from electrosetting compositions
US5699668A (en) * 1995-03-30 1997-12-23 Boreaus Technical Limited Multiple electrostatic gas phase heat pump and method
US6131393A (en) * 1998-05-27 2000-10-17 Mutual Of Omaha Insurance Company Cooling of stored water
US6532751B1 (en) * 2002-03-22 2003-03-18 Whirlpool Corporation Method of maximizing ice production in a refrigeration appliance
US20030068414A1 (en) * 1997-03-17 2003-04-10 Akinori Ito Method and equipment for treating electrostatic field and electrode used therein
US20040025527A1 (en) * 2002-05-30 2004-02-12 Yasuhito Takahashi Clear ice making apparatus, clear ice making method and refrigerator
US20040244407A1 (en) * 2003-06-04 2004-12-09 Sanyo Electric Co., Ltd. Cooling apparatus and method for setting refrigerant sealing amount for the same
US20050005611A1 (en) * 2001-11-01 2005-01-13 Norio Owada Highly-efficient freezing apparatus and highly-efficient freezing method
US7418823B2 (en) * 2002-05-10 2008-09-02 Shounan Jitsugyou Corporation Freezer, freezing method and frozen objects

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001086967A (ja) * 1999-09-22 2001-04-03 Airtech Japan Ltd 磁場，電場の変動を利用した冷凍方法及び冷凍庫
JP2002364968A (ja) * 2001-06-07 2002-12-18 Ekotekkusu:Kk 氷点降下冷蔵装置
JP4243924B2 (ja) * 2001-09-17 2009-03-25 株式会社アビー 高機能性冷凍装置および高機能性冷凍方法

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01139979A (ja) * 1987-11-27 1989-06-01 Matsushita Refrig Co Ltd 製氷器
US5194181A (en) * 1988-07-15 1993-03-16 The United States Of America As Represented By The Secretary Of The Navy Process for shaping articles from electrosetting compositions
US5699668A (en) * 1995-03-30 1997-12-23 Boreaus Technical Limited Multiple electrostatic gas phase heat pump and method
US20030068414A1 (en) * 1997-03-17 2003-04-10 Akinori Ito Method and equipment for treating electrostatic field and electrode used therein
US6131393A (en) * 1998-05-27 2000-10-17 Mutual Of Omaha Insurance Company Cooling of stored water
US20050005611A1 (en) * 2001-11-01 2005-01-13 Norio Owada Highly-efficient freezing apparatus and highly-efficient freezing method
US6532751B1 (en) * 2002-03-22 2003-03-18 Whirlpool Corporation Method of maximizing ice production in a refrigeration appliance
US7418823B2 (en) * 2002-05-10 2008-09-02 Shounan Jitsugyou Corporation Freezer, freezing method and frozen objects
US20040025527A1 (en) * 2002-05-30 2004-02-12 Yasuhito Takahashi Clear ice making apparatus, clear ice making method and refrigerator
US20040244407A1 (en) * 2003-06-04 2004-12-09 Sanyo Electric Co., Ltd. Cooling apparatus and method for setting refrigerant sealing amount for the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100186421A1 (en) * 2007-09-17 2010-07-29 BSH Bosch und Siemens Hausgeräte GmbH Ice cube preparer and method for operating the ice cube preparer
US20110302940A1 (en) * 2008-12-16 2011-12-15 Lg Electronics, Inc. Refrigerator
US9234697B2 (en) * 2008-12-16 2016-01-12 Lg Electronics Inc. Refrigerator
US20120011880A1 (en) * 2009-01-08 2012-01-19 Lg Electronics, Inc. Cooling apparatus
US20220252335A1 (en) * 2019-10-09 2022-08-11 Panasonic Intellectual Property Management Co., Ltd. Refrigerator
US12130075B2 (en) * 2019-10-09 2024-10-29 Panasonic Intellectual Property Management Co., Ltd. Refrigerator comprising a dielectric heating mechanism
CN114353422A (zh) * 2021-12-13 2022-04-15 珠海格力电器股份有限公司 分类装置、冰箱、分类方法和存储介质

Also Published As

Publication number Publication date
WO2007094541A1 (fr) 2007-08-23
AU2006338352A1 (en) 2007-08-23
EP2003993A1 (fr) 2008-12-24
EP2003993A4 (fr) 2010-06-02
BRPI0621353A2 (pt) 2011-12-06

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Legal Events

Date Code Title Description
AS Assignment

Owner name: LG ELECTRONICS, INC., KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KIM, SU-CHEONG;SHIN, JONG-MIN;LEE, SU-WON;AND OTHERS;REEL/FRAME:021646/0097

Effective date: 20080822

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION