EP2719979A1 - Kühlschrank zum Verhindern von Taubildung an einer Türdichtung - Google Patents

Kühlschrank zum Verhindern von Taubildung an einer Türdichtung Download PDF

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Publication number
EP2719979A1
EP2719979A1 EP13187581.7A EP13187581A EP2719979A1 EP 2719979 A1 EP2719979 A1 EP 2719979A1 EP 13187581 A EP13187581 A EP 13187581A EP 2719979 A1 EP2719979 A1 EP 2719979A1
Authority
EP
European Patent Office
Prior art keywords
door
refrigerator
interior
freezer
refrigerator according
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Withdrawn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
EP13187581.7A
Other languages
English (en)
French (fr)
Inventor
Woo Cheol Cheon
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.)
WiniaDaewoo Co Ltd
Original Assignee
Dongbu Daewoo Electronics 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 Dongbu Daewoo Electronics Corp filed Critical Dongbu Daewoo Electronics Corp
Publication of EP2719979A1 publication Critical patent/EP2719979A1/de
Withdrawn legal-status Critical Current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
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/028—Details
    • 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
    • F25D23/06—Walls
    • 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
    • F25D21/04—Preventing the formation 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
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • 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
    • F25D23/08—Parts formed wholly or mainly of plastics materials
    • F25D23/082—Strips
    • F25D23/087—Sealing strips

Definitions

  • the present invention relates to a refrigerator, and more particularly, to a refrigerator for preventing dewing of door gaskets.
  • the refrigerator is capable of preventing cool air within the refrigerator from causing dew to form directly in the door gaskets.
  • a refrigerator is partitioned into a freezer room or space and a cold room or space, in which food items are stored in frozen and cold states, respectively. So as to selectively open and close the freezer room or space and the cold room or space, a freezer door and a cold room door are separately mounted.
  • the interior of the refrigerator is cooled by means of the cool air supplied continuously thereto, and the cool air is continuously produced through the heat exchanging operation of refrigerant, wherein the refrigerant is repeatedly compressed, condensed, expanded and evaporated.
  • the cool air supplied to the interior of the refrigerator is evenly sent thereto by convection so that the food items stored within the refrigerator can be maintained at a desired temperature.
  • a hot pipe is coupled to the inside of the cabinet in the conventional practice, thereby allowing the temperature of a portion where dewing is expected to be raised to greater than the dew point temperature.
  • the improvement of the insulation structure of the refrigerator or the improvement of the performance of the cooling cycle of the refrigerator has been recently made to obtain energy saving.
  • the efficiency of a compressor, the heat transfer efficiency of a condenser, and the evaporation efficiency of an evaporator should be improved, and through the improvements, the evaporation temperature at which the refrigerant is evaporated in the evaporator can be lowered.
  • the present invention has been made in view of the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a refrigerator for preventing dewing on door gaskets.
  • the refrigerator is capable of preventing cool air within the refrigerator from reaching the door gaskets, and reducing the temperature deviation or difference at a location where internal air and external air meet each other at or near the door gaskets to prevent dewing around the door gaskets.
  • a refrigerator for preventing dewing on door gaskets including one or more doors, each door having a rear or internal surface; a door gasket along one or more edges of the rear or internal surface of at least one of the one or more doors, configured to prevent cool air in an interior of the refrigerator from leaking to outside the refrigerator; and a cool air shield between a door inside surface and the door gasket, configured to separate the door gasket and the interior of the refrigerator from each other.
  • the door inside surface may extend from the edge of the rear or internal surface of the door(s) toward the interior of the refrigerator.
  • the cool air shield includes a sealing surface portion contacting the internal surface of the door(s); and a shielding portion extending from one side of the sealing surface portion, configured to shield a space between the door inside surface of the door(s) and the inner surface of the refrigerator and/or to separate the door gasket and the interior of the refrigerator from each other.
  • one side of the sealing surface portion is in a coupling groove on the rear or internal surface of the door(s) and in contact with the door inside surface.
  • one side end portion of the sealing surface portion is bent or curved along an inner surface of the coupling groove, and a portion of the door gasket fits with the coupling groove and allows the bent or curved portion of the sealing surface portion to resist and/or press the inner surface of the coupling groove.
  • the shielding portion has a front end portion bent or curved toward the door gasket.
  • the front end portion of the shielding portion contacts an inner surface of the refrigerator when the door(s) is/are closed.
  • FIG. 1 is a cross-sectional view showing a refrigerator for preventing dewing on door gaskets according to the present invention
  • FIG. 2 is an enlarged cross-sectional view showing the part of dotted portion of FIG. 1 with the freezer door 3 in the closed position;
  • FIG. 3 is a perspective view showing a cool air shield to be disposed in the refrigerator for preventing dewing on the door gaskets according to the present invention
  • FIG. 4 is a cross-sectional view showing temperature regions of FIG. 2 ;
  • FIG. 5 is a graph showing the temperature of [something; a door gasket?] relative to the dew point according to the present invention and the conventional practice.
  • FIG. 1 is a cross-sectional view showing a refrigerator for preventing dewing of door gaskets according to the present invention
  • FIG. 2 is an enlarged cross-sectional view showing part of the dotted portion of FIG. 1 with the freezer door 3 in the closed position
  • FIG. 3 is a perspective view showing a cool air shield for preventing dewing on the door gaskets according to the present invention.
  • FIG. 4 is a cross-sectional view showing temperature regions of FIG. 2
  • FIG. 5 is a graph showing the temperatures of the door gaskets relative to the dew point according to the present invention and the conventional practice.
  • a freezer door 3 and a cold room or cold storage space door 4 are mounted on the cabinet of a refrigerator so as to open and close the freezer 1 and the cold room or cold storage unit 2 when items like food are put thereinto and/or withdrawn therefrom.
  • a door gasket 5 is mounted along one or more edges of the rear or internal surface of each of the freezer door 3 and the cold room door 4 to prevent the cold air within the refrigerator from leaking through a space between the door and the refrigerator cabinet.
  • one door gasket 5 can be mounted on or fixed to the internal surface of the freezer door 3 along and/or near a lower edge thereof, and another door gasket can be mounted on or fixed to the internal surface of the cold room door 4 along and/or near an upper edge thereof.
  • the door gasket 5 includes a coupling portion 5a inserted into and/or fixed to a coupling groove 6 along the edges of the rear or internal surface of each of the freezer door 3 and the cold room door 4, a buffering portion 5b extending from the coupling portion 5a and configured to buffer the impact generated when the door is closed, and a contact portion 5c extending from the buffering portion 5b and contacting the front surface of the refrigerator body or cabinet when the freezer door 3 is closed.
  • a cover plate 8 is on or over a partition 7 that divides the freezer 1 and the cold room 2 from each other.
  • a magnet 9 is inserted into the contact portion 5c of the door gasket 5 and holds the freezer door 3 closed when the contact portion 5c contacts the cover plate 8 on the front surface of the refrigerator body or cabinet.
  • the coupling portion 5a of the door gasket 5 is inserted into and/or fixed to the coupling groove 6 along one or more edges of the rear or internal surface of each of the freezer door 3 and the cold room door 4, so that the door gasket 5 is fixed to the door frame of each of the freezer door 3 and the cold room door 4 and prevents the cold air within the refrigerator from leaking through the door to the outside.
  • the freezer 1 and the cold room 2 have a plurality of shelves 10 disposed therein on which items are stored and a plurality of pockets 11 inside the freezer door 3 and the cold room door 4 to accommodate food containers or drinks therein.
  • Pocket bars are inside the pockets 11 so as to prevent the food containers or drinks in the pockets 11 from escaping or falling.
  • a thin cool air shield 100 is disposed between the door gasket 5 and a door inside surface 3a to separate the interior of the freezer 1 from the door gasket 5. That is, the cool air shield 100 is adapted to shield the space between the door inside surface 3a and an inner surface 1a of the freezer 1 at a relatively distant point from the door gasket 5 toward the interior of the freezer 1.
  • the door inside surface 3a as shown in FIG. 2 extends from one or more edges of the rear or interior surface of the freezer door 3, toward the interior of the refrigerator (or freezer). However, when the freezer door 3 does not have a lower portion that extends into the freezer 1, the door inside surface 3a may be an internal surface of the freezer door 3 just above the door gasket 5 and/or the cool air shield 100.
  • the cool air shield 100 has a sealing surface portion 101 that contacts the door inside surface 3a of the freezer door 3 and a shielding portion 102 that is bent and that extends from one side of the sealing surface portion 101 to shield the space between the door inside surface 3a of the freezer door 3 and the inner surface 1a of the freezer 1.
  • the shielding portion 102 is configured to shield the space between the door gasket 5 and an interior of the freezer 1.
  • one side or edge of the sealing surface portion 101 of the cool air shield 100 is inserted into the coupling groove 6 and/or brought into close contact with the coupling groove 6, together with the door gasket 5.
  • an opposite side or edge of the sealing surface portion 101 extends toward the interior of the freezer 1 along the door inside surface 3a of the freezer door 3, spaced apart from the door gasket 5.
  • the end portion of the sealing surface portion 101 toward the interior of the freezer 1 elastically contacts the door inside surface 3a of the freezer door 3, so that even if a long period of time has passed, the sealing surface portion 101 does not separate from the door inside surface 3a of the freezer door 3 due to its own weight or temperature changes.
  • the door gasket 5 may push the sealing surface portion 101 toward the door inside surface 3a, thereby allowing the sealing surface portion 101 to be in contact with the door inside surface 3a.
  • the shielding portion 102 may comprise or be made of a flexible material that may have a curtain shape and/or extend from the sealing surface portion 101 toward the inner surface 1a of the freezer 1 and shield the space communicating with the door gasket 5 (e.g., the space under the door inside surface 3a, between the shielding portion 102 and the door gasket 5).
  • the shielding portion 102 has a front end portion bent toward the door gasket 5 to inhibit or prevent locking when the freezer room door 3 is closed.
  • the formation of the cool air shield 100 prevents the cool air supplied to the freezer 1 from directly coming into contact with the door gasket 5, thereby avoiding the freezing of the door gasket 5 (or cooling of the door gasket 5 to below the dew point), and thus reduce the deviation or difference of the temperature at a location where freezer internal air and external air meet each other at or near a boundary of the door gasket 5 to prevent dewing on or around the door gasket 5.
  • the door gasket 5 is not directly between a low temperature dry region A within the freezer 1 and a high temperature and high humidity region C outside the refrigerator. Rather, a temperature drop suppressing region B is formed between the door gasket 5 and the low temperature dry region A within the freezer 1 by the cool air shield 100, thereby reducing drastic temperature deviations and/or differences and thus preventing the formation of dew on or near the door gasket 5.
  • the shielding portion 102 may contact the inner surface 1a of the freezer 1, but even when spaced apart therefrom by a small distance or gap, the temperature drop suppressing region B can be effective.
  • the temperature of the door gasket 5 or the cover plate 8 is increased much more than when compared with the conventional practice, so that the time that the door gasket 5 or the cover plate 8 is below the dew point becomes shorter than in the conventional practice, and the lowest temperature of the door gasket 5 or the cover plate 8 becomes higher than in the conventional practice, thereby preventing (or at least significantly reducing) dewing around the door gasket 5 on the freezer door 3.
  • the cool air shield 100 may be disposed on the cold room door 4 to shield the space between the door inner surface 4a of the cold room door 4 and the inner surface or interior of the cold room 2.
  • the refrigerator for preventing dewing on the door gaskets is provided with a cool air shield that may be disposed between an inside surface of the freezer door and the door gasket to shield the space between the inside surface of the freezer door and the inner surface or interior of the freezer, thereby preventing the cool air supplied to the freezer from directly contacting the door gasket and further avoiding the freezing of the door gasket.
  • the present invention reduces a temperature deviation or difference at a location where internal air and external air meet each other (e.g., at or near a boundary of the door gaskets), thereby preventing dewing on or around the door gaskets.

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  • 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)
  • Refrigerator Housings (AREA)
EP13187581.7A 2012-10-12 2013-10-07 Kühlschrank zum Verhindern von Taubildung an einer Türdichtung Withdrawn EP2719979A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120113535A KR20140047360A (ko) 2012-10-12 2012-10-12 도어가스켓의 응결 방지용 냉장고

Publications (1)

Publication Number Publication Date
EP2719979A1 true EP2719979A1 (de) 2014-04-16

Family

ID=49322250

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13187581.7A Withdrawn EP2719979A1 (de) 2012-10-12 2013-10-07 Kühlschrank zum Verhindern von Taubildung an einer Türdichtung

Country Status (4)

Country Link
US (1) US20140103791A1 (de)
EP (1) EP2719979A1 (de)
KR (1) KR20140047360A (de)
CN (1) CN103727731A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9841223B2 (en) 2014-12-01 2017-12-12 Samsung Electronics Co., Ltd. Refrigerator

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Publication number Priority date Publication date Assignee Title
EP3006869B1 (de) * 2013-06-08 2018-06-06 Hefei Hualing Co., Ltd. Kühlvorrichtung
CN104279825A (zh) * 2014-10-31 2015-01-14 合肥美的电冰箱有限公司 门体及冰箱
CN104990339B (zh) * 2015-07-23 2018-02-13 广州美的华凌冰箱有限公司 冰箱
KR102525550B1 (ko) 2015-08-03 2023-04-25 엘지전자 주식회사 진공단열체 및 냉장고
KR102466469B1 (ko) 2015-08-03 2022-11-11 엘지전자 주식회사 진공단열체 및 냉장고
EP3954956A1 (de) 2015-08-03 2022-02-16 LG Electronics Inc. Adiabatischer vakuumkörper und kühlschrank
KR20170016188A (ko) 2015-08-03 2017-02-13 엘지전자 주식회사 진공단열체 및 냉장고
KR102456642B1 (ko) * 2015-08-03 2022-10-19 엘지전자 주식회사 진공단열체 및 냉장고
KR102502160B1 (ko) 2015-08-03 2023-02-21 엘지전자 주식회사 진공단열체 및 냉장고
KR102498210B1 (ko) 2015-08-03 2023-02-09 엘지전자 주식회사 진공단열체 및 냉장고
KR102525551B1 (ko) 2015-08-03 2023-04-25 엘지전자 주식회사 진공단열체 및 냉장고
KR102529853B1 (ko) 2015-08-03 2023-05-08 엘지전자 주식회사 진공단열체, 진공단열체의 제조방법, 다공성물질패키지, 및 냉장고
KR102442973B1 (ko) 2015-08-03 2022-09-14 엘지전자 주식회사 진공단열체 및 냉장고
WO2018037526A1 (ja) * 2016-08-25 2018-03-01 ホシザキ株式会社 冷却貯蔵庫の扉装置
CN108613463A (zh) * 2016-12-12 2018-10-02 博西华电器（江苏）有限公司 制冷器具
CN108278826B (zh) * 2017-01-06 2021-03-12 松下电器产业株式会社 冰箱
CN113883793B (zh) * 2020-07-03 2023-01-20 青岛海尔电冰箱有限公司 冰箱
US11859895B2 (en) 2022-02-10 2024-01-02 Whirlpool Corporation Refrigeration unit

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EP1584878A2 (de) * 2004-04-06 2005-10-12 Lg Electronics Inc. Dichtung für einen Kühlschränk
WO2006107180A1 (en) * 2005-04-08 2006-10-12 Lg Electronics Inc. Sealing structure of refrigerator
WO2007065554A1 (de) * 2005-12-10 2007-06-14 Rehau Ag + Co Gefrierschranktürbaugruppe sowie gefrierschrank mit einer derartigen gefrierschranktürbaugruppe
TW201113488A (en) * 2009-10-09 2011-04-16 Toshiba Kk Refrigerator

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Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
EP1584878A2 (de) * 2004-04-06 2005-10-12 Lg Electronics Inc. Dichtung für einen Kühlschränk
WO2006107180A1 (en) * 2005-04-08 2006-10-12 Lg Electronics Inc. Sealing structure of refrigerator
WO2007065554A1 (de) * 2005-12-10 2007-06-14 Rehau Ag + Co Gefrierschranktürbaugruppe sowie gefrierschrank mit einer derartigen gefrierschranktürbaugruppe
TW201113488A (en) * 2009-10-09 2011-04-16 Toshiba Kk Refrigerator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9841223B2 (en) 2014-12-01 2017-12-12 Samsung Electronics Co., Ltd. Refrigerator

Also Published As

Publication number Publication date
US20140103791A1 (en) 2014-04-17
KR20140047360A (ko) 2014-04-22
CN103727731A (zh) 2014-04-16

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