US20040189165A1 - Refrigerator having storage chambers with improved airtightness - Google Patents

Refrigerator having storage chambers with improved airtightness Download PDF

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Publication number
US20040189165A1
US20040189165A1 US10/758,127 US75812704A US2004189165A1 US 20040189165 A1 US20040189165 A1 US 20040189165A1 US 75812704 A US75812704 A US 75812704A US 2004189165 A1 US2004189165 A1 US 2004189165A1
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US
United States
Prior art keywords
refrigerator
magnet
set forth
door
magnets
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
US10/758,127
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English (en)
Inventor
Jae An
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
Assigned to SAMSUNG ELECTRONICS CO., LTD. reassignment SAMSUNG ELECTRONICS CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AN, JAE KOOG
Publication of US20040189165A1 publication Critical patent/US20040189165A1/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
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
    • E05C19/16—Devices holding the wing by magnetic or electromagnetic attraction
    • E05C19/161—Devices holding the wing by magnetic or electromagnetic attraction magnetic gaskets
    • 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
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/06—Refrigerators with a vertical mullion

Definitions

  • the present invention relates generally to a refrigerator, and more particularly to a refrigerator in which the structure of magnets, which are disposed in both a door and a body to maintain airtightness of a storage chamber, respectively, is improved.
  • a refrigerator is an apparatus that provides cold air generated in an evaporator to a storage chamber to maintain various foods in a fresh condition.
  • the storage chamber is selectively opened and closed by a door, and an airtight device is generally provided between a refrigerator body and the door to maintain airtightness of the storage chamber when the door is closed.
  • An airtight device may be exemplified by a gasket that is arranged along a circumferential edge of the inside surface of the door containing a magnet.
  • the gasket causes the storage chamber to be airtight as the magnet contained in the gasket adheres to the front of the steel refrigerator body when the door is closed.
  • a body of a refrigerator is made of a non-magnetic substance, such as synthetic resin, like a refrigerator disclosed in Korean Unexamined Pat. Pub. No. 2001-0113245
  • a magnetic substance, such as a steel plate, or magnet is embedded inside a front of the refrigerator body to allow the magnet contained in the gasket arranged on the door to adhere to the refrigerator body.
  • the magnetic substance or magnet is embedded in the front of the refrigerator body, but the front of the refrigerator body made of resin is interposed between the magnet contained in the gasket and the magnetic substance or magnet embedded in the refrigerator body.
  • an attractive force between the magnet and the magnetic substance or magnet is weak . Therefore, it is difficult to maintain the airtightness of the storage chamber.
  • this scheme causes difficulty in the manufacture of the refrigerator and incurs excessive manufacturing costs.
  • the magnet when a magnet is embedded inside the front of the refrigerator body, the magnet must be embedded at a correct position corresponding to that of the magnet contained in the gasket.
  • the magnet When a foam insulating material is injected into the refrigerator body during the manufacture of the refrigerator, the magnet may be pushed by the pressure of the foam insulating material and removed from an initial correct position . Some amount of repulsive force may be generated between the magnet embedded inside the front of the refrigerator body and the magnet contained in the gasket, so poor airtightness of the storage chamber may result.
  • a refrigerator including a door attached to a body which selectively opens and closes a storage chamber, a gasket along an inside surface of the door to maintain airtightness of the storage chamber, a first magnet in the gasket, a second magnet inside a front of the body facing the first magnet, and at least one shield member blocking surfaces of at least one of the first and second magnets not facing a remaining magnet.
  • the shield member may be a metallic plate surrounding the remaining surfaces of the one magnet not facing the remaining magnet.
  • the shield member blocks surfaces of the second magnet.
  • the shield member blocks the north pole of the one magnet.
  • the front of the body may be a non-magnetic substance.
  • FIG. 1 is a perspective view showing an appearance of a refrigerator, according to the present invention.
  • FIG. 2 is a cross section of the refrigerator of FIG. 1;
  • FIG. 3 is a detailed view of a portion of FIG. 2;
  • FIG. 4 is a sectional view of an airtight device of the refrigerator according to one embodiment of the present invention, showing an arrangement of magnets;
  • FIG. 5 is a view showing lines of magnetic force formed around a second magnet of the refrigerator of the present invention.
  • FIG. 6 is a view showing lines of magnetic force formed around a general magnet
  • FIG. 7 is a sectional view of an airtight device of the refrigerator with the second magnet offset from an appropriate position
  • FIG. 8 is a sectional view of an airtight device of the refrigerator according to another embodiment of the present invention with a shield member attached to a first magnet;
  • FIG. 9 is a sectional view of an airtight device of the refrigerator according to another embodiment of the present invention with shield members attached to the first and second magnets.
  • a refrigerator of the present invention is constructed so that a storage chamber defined inside a body 10 of the refrigerator is divided by a central partition 11 into a freezer compartment 12 on the left and a refrigerator compartment 13 on the right. Further, a freezer compartment door 14 and a refrigerator compartment door 15 are situated in front of the freezer compartment 12 and in front of the refrigerator compartment 13 , respectively. Both the freezer compartment door 14 and the refrigerator compartment door may occupy open 1 and closed 2 positions.
  • Gaskets 20 are arranged along circumferential edges of inside surfaces of the doors 14 and 15 , which are used to selectively open and close the freezer compartment 12 and the refrigerator compartment 13 , respectively, to maintain airtightness of the freezer compartment 12 and the refrigerator compartment 13 .
  • a front 16 of the body 10 that comes into contact with the gaskets 20 is integrated with two inner casings 17 into a single body through a resin forming process.
  • This construction of the front 16 of the body 10 provides the front 16 of the body 10 with a pleasant appearance and reduces manufacturing costs by allowing the two inner casings 17 of the freezer compartment 12 and the refrigerator compartment 13 to be integrally fabricated.
  • An airtight device 30 provided on the gaskets 20 and the front 16 of the body 10 includes first magnets 31 contained in the gaskets 20 and second magnets 32 embedded inside the front 16 of the body 10 to face the first magnets 31 , respectively.
  • the first magnets 31 are arranged to face the second magnets 32 , with opposite poles thereof facing each other. This creates an attractive force between the first and second magnets 31 and 32 (see FIG. 4).
  • the construction takes into account the fact that the front 16 of the body 10 is made of resin that is a non-magnetic substance. In this case, the airtightness of the freezer compartment 12 and the refrigerator compartment 13 is maintained by an attractive force between the first magnet 31 contained in the gaskets 20 and the magnets 32 embedded in the front 16 of the body 10 .
  • a shield member 33 is attached to each of the second magnets 32 embedded in the front 16 of the body 10 so that side surfaces and a rear surface of the second magnet 32 are covered to enhance the attractive force between the first and second magnets 31 and 32 .
  • a front surface of the second magnet 32 facing each of the first magnets 31 is uncovered.
  • the shield member 33 is formed of a metallic plate made of a magnetic substance, and is positioned in tight contact with inside surfaces of the second magnet 32 to surround the three surfaces of the second magnet 32 . This construction, as depicted in FIG. 5, causes lines of magnetic force extending from a north pole to a south pole of the second magnet 32 to be blocked by the shield member 33 and be prevented from leaking through the inside surfaces of the magnet 32 . Therefore, the flux density of the lines of magnetic force is increased in an area between the first and second magnets 31 and 32 , thus increasing the attractive force between the first and second magnets 31 and 32 .
  • the effect obtained by the shield member 33 can be easily appreciated by comparing lines of magnetic force around a magnet without the shield member 33 shown in FIG. 6 with lines of magnetic force around the second magnet 32 with the shield member 33 shown in FIG. 5. As shown in FIG. 6, in the case of the magnet without the shield member 33 , the lines of magnetic force extending from a north pole to a south pole of the magnet are distributed around the magnet. Thus, the effective distance L of the magnetic force contributing to actual attractive force between the first and second magnets 31 and 32 is short.
  • the effective distance L′ of the magnetic force in a direction from the second magnet 32 to the first magnet 31 is increased and the attractive force between the first and second magnets 31 and 32 is increased thereby causing the gasket 20 to be brought into tight contact with the front 16 of the body 10 and, therefore, securely maintaining the airtightness of each of the compartments 12 and 13 .
  • the present invention even when the second magnet 32 positioned inside the front 16 of the body 10 is pushed by the foam insulating material formed in the body 10 and somewhat setoff from a position corresponding to that of the first magnet 31 , repulsive force is not generated between the first and second magnets 31 and 32 and, therefore, the first and second magnets 31 and 32 effectively adhere to each other. This is because lines of magnetic force extending through both sides of the second magnet 32 , which may contribute to the repulsive force, are blocked by the shield member 33 and accordingly do not affect the first magnet 31 .
  • the construction of the present invention can suppress a repulsive force between the first and second magnets 31 and 32 even though the second magnet 32 embedded in the body 10 is somewhat offset from an appropriate position thereof during the manufacture of the refrigerator, thus preventing poor airtightness of the compartment.
  • FIG. 8 is a sectional view showing a refrigerator according to another embodiment of the present invention, in which a shield member 34 is attached to inside surfaces of the first magnet 31 .
  • FIG. 9 is a sectional view showing a refrigerator according to another embodiment of the present invention, in which shield members 33 and 34 are attached to inside surfaces of the first magnet 31 and outside surfaces of the second magnet 32 , respectively.
  • the effects of these aforementioned refrigerators are similar to that of the refrigerator of the first embodiment.
  • the refrigerator of the present invention can increase attractive force between the first and second magnets by the attachment of at least one shield member to at least one of the first and second magnets, so the refrigerator can maintain the secure airtightness of the compartment of the refrigerator.
  • the refrigerator of the present invention can block remaining lines of magnetic force except for lines of magnetic force contributing to an attractive force between the two magnets, so proper attractive force can be maintained between the two magnets even though the magnets are offset from each other during the manufacture of the refrigerator, thus preventing poor airtightness of the refrigerator.
  • the present invention may also be understood as a method for increasing the attractive force between a door 14 and 15 and a refrigerator body 10 .
  • the first and second steps comprise installing magnets 31 and 32 in the gasket 20 and the front 16 of the body 10 . This creates an attraction between the magnets 31 and 32 when the doors 14 and 15 are closed.
  • a shield member 33 is provided to at least one of the magnets 31 and 32 along surfaces of the magnet not facing the other magnet

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Refrigerator Housings (AREA)
US10/758,127 2003-03-28 2004-01-16 Refrigerator having storage chambers with improved airtightness Abandoned US20040189165A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR2003-19478 2003-03-28
KR1020030019478A KR20040084418A (ko) 2003-03-28 2003-03-28 냉장고

Publications (1)

Publication Number Publication Date
US20040189165A1 true US20040189165A1 (en) 2004-09-30

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US10/758,127 Abandoned US20040189165A1 (en) 2003-03-28 2004-01-16 Refrigerator having storage chambers with improved airtightness

Country Status (4)

Country Link
US (1) US20040189165A1 (zh)
EP (1) EP1462741A3 (zh)
KR (1) KR20040084418A (zh)
CN (1) CN1283969C (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090314028A1 (en) * 2005-05-11 2009-12-24 Bsh Bosch Und Siemens Hausgerate Gmbh Refrigerator comprising a plastic front frame
JP2016118388A (ja) * 2016-02-26 2016-06-30 株式会社東芝 冷蔵庫
FR3042251A1 (fr) * 2015-10-13 2017-04-14 Air Liquide Joint magnetique pour machines cryogeniques
US20180372396A1 (en) * 2015-12-23 2018-12-27 Rehau Ag + Co. Profiled arrangement, particularly for a refrigerator and/or freezer device
US11112165B2 (en) * 2017-03-09 2021-09-07 Fisher & Paykel Appliances Limited Refrigeration appliance door-sealing arrangement

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101846430B (zh) * 2009-03-26 2011-11-09 株式会社东芝 冰箱
DE102011014985A1 (de) * 2011-02-23 2012-10-11 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
CN102997576B (zh) * 2012-12-17 2015-08-26 合肥美的电冰箱有限公司 用于冰箱的门体和具有该门体的冰箱
JP6073199B2 (ja) * 2013-08-02 2017-02-01 日立アプライアンス株式会社 冷蔵庫
CN107272079A (zh) * 2017-04-28 2017-10-20 青岛高智高新科技有限公司 一种抗压防水式手持式海洋探测器
CN112228626A (zh) * 2020-10-16 2021-01-15 王威朝 一种自感知压缩式高密封性直通闸阀

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2932545A (en) * 1958-10-31 1960-04-12 Gen Electric Magnetic door latching arrangement for refrigerator
US3004309A (en) * 1959-04-30 1961-10-17 Westinghouse Electric Corp Magnetic closure seal
US3077644A (en) * 1960-08-19 1963-02-19 Gen Motors Corp Refrigerating apparatus
US3248159A (en) * 1964-03-05 1966-04-26 Goodrich Co B F Magnet-containing seal for closures
US4480407A (en) * 1981-08-26 1984-11-06 Needham Robert J Pet doors
US4702038A (en) * 1985-09-21 1987-10-27 Harry Frey Door seal packing, especially for doors with or without thresholds
US4732432A (en) * 1986-12-29 1988-03-22 Whirlpool Corporation Breaker strip for a refrigerator cabinet
US5309680A (en) * 1992-09-14 1994-05-10 The Standard Products Company Magnetic seal for refrigerator having double doors
US5349832A (en) * 1993-05-14 1994-09-27 Maytag Corporation Mullion bar assembly with enhanced heat transfer barrier characteristics
US5487239A (en) * 1994-06-06 1996-01-30 General Electric Company Refrigerator gasket assembly
US5533311A (en) * 1994-09-30 1996-07-09 Maytag Corporation Thermoformed plastic refrigerator door
US5575485A (en) * 1991-11-25 1996-11-19 Industrie Ilpea S.P.A. Magnetic gasket suitable for forming a seal between a fixed part and an openable part
US5782512A (en) * 1997-01-13 1998-07-21 Xerox Corporation Magnetic field latch assembly
US5934098A (en) * 1997-07-30 1999-08-10 Daewoo Electronics Co., Ltd. Refrigerator having a cabinet manufactured by a blow-molding process
US5975661A (en) * 1998-03-05 1999-11-02 Camco Inc. Refrigerator door seal assembly
US6056383A (en) * 1997-05-29 2000-05-02 Camco Inc. Refrigerator cabinet breaker assembly
US6327867B1 (en) * 1998-02-20 2001-12-11 Matsushita Refrigeration Company Refrigerator having a cooler mounted in each of a refrigerator compartment and a freezer compartment
US6464312B1 (en) * 2001-05-01 2002-10-15 Maytag Corporation Refrigerator door breaker assembly

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2269149A (en) * 1939-11-24 1942-01-06 Gen Electric Permanent magnet
US2659116A (en) * 1951-07-17 1953-11-17 Jervis Corp Magnetic door seal
US2904364A (en) * 1958-07-31 1959-09-15 Westinghouse Electric Corp Magnetic latch
US3009725A (en) * 1958-10-27 1961-11-21 Whirlpool Co Latch
US3331043A (en) * 1965-09-14 1967-07-11 Raul Mariano Orzabal Permanent holding magnet
DE29606994U1 (de) * 1996-04-21 1997-08-14 Dictator Technik Dr. Wolfram Schneider & Co Verwaltungs- und Beteiligungsgesellschaft, 86356 Neusäß Haftmagnet

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2932545A (en) * 1958-10-31 1960-04-12 Gen Electric Magnetic door latching arrangement for refrigerator
US3004309A (en) * 1959-04-30 1961-10-17 Westinghouse Electric Corp Magnetic closure seal
US3077644A (en) * 1960-08-19 1963-02-19 Gen Motors Corp Refrigerating apparatus
US3248159A (en) * 1964-03-05 1966-04-26 Goodrich Co B F Magnet-containing seal for closures
US4480407A (en) * 1981-08-26 1984-11-06 Needham Robert J Pet doors
US4702038A (en) * 1985-09-21 1987-10-27 Harry Frey Door seal packing, especially for doors with or without thresholds
US4732432A (en) * 1986-12-29 1988-03-22 Whirlpool Corporation Breaker strip for a refrigerator cabinet
US5575485A (en) * 1991-11-25 1996-11-19 Industrie Ilpea S.P.A. Magnetic gasket suitable for forming a seal between a fixed part and an openable part
US5309680A (en) * 1992-09-14 1994-05-10 The Standard Products Company Magnetic seal for refrigerator having double doors
US5349832A (en) * 1993-05-14 1994-09-27 Maytag Corporation Mullion bar assembly with enhanced heat transfer barrier characteristics
US5487239A (en) * 1994-06-06 1996-01-30 General Electric Company Refrigerator gasket assembly
US5533311A (en) * 1994-09-30 1996-07-09 Maytag Corporation Thermoformed plastic refrigerator door
US5782512A (en) * 1997-01-13 1998-07-21 Xerox Corporation Magnetic field latch assembly
US6056383A (en) * 1997-05-29 2000-05-02 Camco Inc. Refrigerator cabinet breaker assembly
US5934098A (en) * 1997-07-30 1999-08-10 Daewoo Electronics Co., Ltd. Refrigerator having a cabinet manufactured by a blow-molding process
US6327867B1 (en) * 1998-02-20 2001-12-11 Matsushita Refrigeration Company Refrigerator having a cooler mounted in each of a refrigerator compartment and a freezer compartment
US5975661A (en) * 1998-03-05 1999-11-02 Camco Inc. Refrigerator door seal assembly
US6464312B1 (en) * 2001-05-01 2002-10-15 Maytag Corporation Refrigerator door breaker assembly

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090314028A1 (en) * 2005-05-11 2009-12-24 Bsh Bosch Und Siemens Hausgerate Gmbh Refrigerator comprising a plastic front frame
US9885202B2 (en) 2005-05-11 2018-02-06 BSH Hausgeräte GmbH Refrigerator comprising a plastic front frame
FR3042251A1 (fr) * 2015-10-13 2017-04-14 Air Liquide Joint magnetique pour machines cryogeniques
WO2017064381A1 (fr) * 2015-10-13 2017-04-20 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Joint magnetique pour machines cryogeniques
US20180372396A1 (en) * 2015-12-23 2018-12-27 Rehau Ag + Co. Profiled arrangement, particularly for a refrigerator and/or freezer device
US11098525B2 (en) * 2015-12-23 2021-08-24 Rehau Ag + Co. Profiled arrangement, particularly for a refrigerator and/or freezer device
JP2016118388A (ja) * 2016-02-26 2016-06-30 株式会社東芝 冷蔵庫
US11112165B2 (en) * 2017-03-09 2021-09-07 Fisher & Paykel Appliances Limited Refrigeration appliance door-sealing arrangement

Also Published As

Publication number Publication date
EP1462741A2 (en) 2004-09-29
CN1534262A (zh) 2004-10-06
CN1283969C (zh) 2006-11-08
EP1462741A3 (en) 2005-10-12
KR20040084418A (ko) 2004-10-06

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AS Assignment

Owner name: SAMSUNG ELECTRONICS CO., LTD., KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:AN, JAE KOOG;REEL/FRAME:014897/0374

Effective date: 20030929

STCB Information on status: application discontinuation

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