EP0672876A1 - Réfrigérateur comportant des parois isolées sous vide - Google Patents

Réfrigérateur comportant des parois isolées sous vide Download PDF

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Publication number
EP0672876A1
EP0672876A1 EP94116778A EP94116778A EP0672876A1 EP 0672876 A1 EP0672876 A1 EP 0672876A1 EP 94116778 A EP94116778 A EP 94116778A EP 94116778 A EP94116778 A EP 94116778A EP 0672876 A1 EP0672876 A1 EP 0672876A1
Authority
EP
European Patent Office
Prior art keywords
door
cooling device
container
cooling
wall
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.)
Granted
Application number
EP94116778A
Other languages
German (de)
English (en)
Other versions
EP0672876B1 (fr
Inventor
Heinz Dr.-Ing. Jürgensen
Günter Dipl.-Ing. Krug
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.)
AEG Hausgeraete GmbH
Original Assignee
AEG Hausgeraete GmbH
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 AEG Hausgeraete GmbH filed Critical AEG Hausgeraete GmbH
Publication of EP0672876A1 publication Critical patent/EP0672876A1/fr
Application granted granted Critical
Publication of EP0672876B1 publication Critical patent/EP0672876B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F25D23/06—Walls
    • F25D23/062—Walls defining a cabinet
    • 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
    • F25D23/04—Doors; Covers with special compartments, e.g. butter conditioners
    • 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
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat
    • F25D2201/14—Insulation with respect to heat using subatmospheric pressure

Definitions

  • the invention relates to a cooling device according to the preamble of the first claim.
  • the actual cooling container like a door closing its access opening, is in each case composed of a smooth-walled inner shell and one spaced apart therefrom.
  • Built outer shell which consist of metal sheets and are vacuum-sealed at their edge zones via poorly heat-conducting connecting elements. Between the inner and outer shells there is a poorly heat-conducting thermal insulation material as a support against the air pressure acting on the wall surfaces.
  • the invention has for its object to take measures in a cooling device according to the preamble of the first claim, through which functional elements can be arranged in a simple manner in the cooling space enclosed by the smooth inner walls.
  • an independent support element designed as a closed surface element is introduced into the cooling space is supported on at least largely horizontal sections of the walls delimiting the cooling space.
  • this is the bottom wall or a stepped rear wall, whereby opposite vertical side walls can also preferably be provided in the lower area with corresponding step heels on which the supporting element can be supported.
  • the inside wall of the door can also be provided with a corresponding step, but the upper horizontal, outward-facing side edge can also serve as a support for the support element which reaches into the inside wall of the door.
  • a thermal insulation profile is preferably placed around the circumferential outer edge of the door, which protrudes with a web into the cooling space, on which the supporting element can optionally also be held.
  • the support element is designed in particular as a door inner hood covering the inner door wall and overlapping the outer door edge, which is subsequently placed on the inner side of the door and has holding elements for door storage compartments and the like.
  • the support element to be inserted into the cooling container is in particular in the form of a conventional plastic inner container as used for cooling devices with foam insulation.
  • This inner container is preferably adapted to the inner contour of the cooling container and consists of thermoformed or injection-molded plastic with the necessary horizontal guide strips for cooling goods storage plates to be inserted, holding elements for control and lighting devices, and in particular on the rear side corresponding holding elements can be provided for an evaporator.
  • the evaporator can be provided between the rear of the inner container and the rear of the cooling container if it is not desired to arrange it inside the inner container. Grooves formed from the outside in can also be provided on the inner container be in which electrical lines or, for example, capillary tubes of a hydraulic thermostat can be laid.
  • This inner container can be placed directly on the bottom wall of the cooling container. However, it is also possible to place it on step heels of the vertical side walls if a free space for, for example, vegetable, fruit or meat dishes is to remain between the underside of the inner container and the bottom wall of the cooling container.
  • the inner container can then be formed with a correspondingly reduced amount of material.
  • the bottom of the inner container then serves as an additional storage surface, and if the height of the inner container is reduced, its top can also be used as a storage compartment.
  • the inner container is preferably equipped with a container edge which is angled radially outwards and which overlaps a cooling container edge which surrounds the access opening.
  • This edge of the container determines the depth of insertion and forms a front end of the insulating walls of the inner container and at the same time protects mechanically thin end foils which prevent excessive heat transfer from the cooled inner walls to the outer walls with a vacuum-tight end.
  • the edge of the container can simultaneously be used for the seal required between the cooling container and the door, it being expedient to attach a magnetizable sheet metal strip on the edge of the container as a magnetic opposite pole for a magnetic profile seal assigned to the door.
  • the inner door hood placed on the inner wall of the door is also preferably pulled out as a supporting element into the area of the outer edge of the door and carries the circumferential one there Magnetic profile seal.
  • the inner walls of the cooling container, such as the door therefore do not need to have any holding elements to be attached or molded. This is particularly advantageous if, for reasons of gas diffusion tightness, the inner and outer surfaces of the heat-insulated walls are made of stainless steel, which is difficult to deep-draw and, moreover, only allows holding elements to be attached by welding, in order not to reduce the necessary gas tightness.
  • step down the outer edge of the door hood this step encompassing a corresponding edge of the door edge of the inner door wall falling towards the outer door shell.
  • the door hood is then centered on the all-round door edge step and held down to prevent it from slipping down. It makes sense to insert a thermal insulation profile between the outer edge of the door and the outer edge of the hood, which protects the connecting film between the outer and inner wall.
  • This thermal insulation profile can also be designed as a self-contained frame which is fixed on the outer edge of the door and carries the inner door hood.
  • a cooling device which is designed in particular as a refrigerator and / or freezer or chest, has a cooling container 1 which encloses a cooling space 2 which receives the goods to be cooled and whose access opening, which is surrounded by a cooling container edge 3, can be sealed by means of a door 4.
  • the cooling container 1 and the door 4 have fully vacuum-insulated walls, in which a heat-insulating proppant 7 made of a powder or fibers is arranged in the cavity between the outer walls 5 made of stainless steel sheet and the inner walls 6.
  • the cavity is at least largely evacuated to produce high quality thermal insulation.
  • the inner walls 6 are left smooth for production reasons and only have continuous, step-by-step settlements, as is the case, for example, with the rear wall 8 of the cooling space 2, in order to be able to provide a niche 9 required for accommodating a compressor or other components .
  • the rear wall 8 is therefore shaped in the manner of a step 10 drawn into the cooling space 2, which is connected to the correspondingly shortened bottom wall 11.
  • an independent support element in the form of an inner container 12 is inserted into the cooling space 2 through the access opening, which is supported in particular on the bottom wall 11 and the horizontal section of the step 10.
  • the inner container 12 has closed surface elements and is drawn from a board, in particular in the plastic deep-drawing process, or is produced in the injection molding process.
  • This inner container 12 can be provided with all the necessary holding elements such as horizontal guide strips 13 for storage shelves to be inserted in vertical, opposing side walls 14, a groove 15 for guiding an electrical cable 16 for a lighting device to be fitted in the inner container 12 and a capillary tube 17 for a likewise provided in the inner container 12 Record temperature controller.
  • the inner container 12 is preferably designed so that its side walls 14 lie closely against the adjacent inner walls 6 and its bottom 18 rests on the bottom wall 11 or the step 10 with the step 19 adapted to the step 10.
  • the top wall 20 of the inner container 12 can also be placed close to the top wall in question in the cooling room 2.
  • a gap is left between the rear wall 21 of the inner container 12 and the adjacent rear wall 8 of the refrigerated goods container 1 in which an evaporator 22, preferably a plate evaporator, is arranged.
  • the evaporator 22 is also fixed to holding elements which are molded onto the inner container 12. However, the evaporator 22 can also be fixed on the rear wall 21 within the inner container.
  • the inner container 12 is provided with a radially outwardly angled, circumferential container edge 23 which engages over the cooling container edge 3 all around.
  • This container edge 23 limits the insertion depth of the inner container 12 into the cooling space 2 and forms part a sealing arrangement between the door 4 and the refrigerated goods container 1.
  • the container rim 23 is provided with a magnetizable strip 24, in particular made of sheet steel, as a magnetic counter-pole for a magnetic profile seal 25 assigned to the door 4.
  • the container rim 23 covers the zone in the region of the cooling container rim 3, in which the inner wall is connected to the outer wall by a sealing membrane 26 which is designed to be vacuum-tight and attached. To protect this sealing membrane 26 against mechanical damage during the construction of the cooling device, it is expedient to protect this sealing membrane 26 from the outside with a stable cover strip 27 against damage.
  • the vacuum-insulated wall element used is provided with an inner wall 6 which is smaller than the outer wall 5, the sealing membrane 28 used there being stepped all around between the two walls 5, 6 in order to optimally use the effect of the vacuum insulation to be able to.
  • a heat-insulating profile 29 which is adapted to this step shape is provided, which is designed in particular as a closed frame and covers the sealing membrane 28 all around.
  • the thermal insulation profile 29 additionally has a web 30 projecting into the cooling space, which also rotates and is fixed to an edge 31 of the inner door wall 6 which is also angled into the cooling space 2.
  • the thermal insulation profile 29 also extends to the outer edge 32 of the door, which is designed as an angled edge of the outer door panel 5 and is flush with the adjacent outer wall 5 of the container.
  • a door inner hood 33 is placed on the inner door wall 6, which can also be drawn from a plastic board or can be produced by the plastic injection molding process and which has a web 30 through the thermal insulation profile 29 follows predetermined contour and extends radially into the area of the outer door edge 32.
  • the inner door shell 33 has a circumferential shape 34 adapted to the web 30 in the edge region.
  • the web 30 thus acts as a holding element for the inner door shell 33, which is also stepped in the same way as the thermal insulation profile 29 or the sealing membrane 28 and thus, with its stepped outer hood edge 35, the door edge step 36 formed on the thermal insulation profile 29 and falling towards the outer door wall 5 spreads.
  • the inner door hood 33 is thus centered on the web 30 or on the door edge step 36, the horizontal parts of the web 30 or the upper door edge step 36 absorbing the weight forces occurring on the door hood 33.
  • the magnetic profile seal 25 which interacts with the magnetizable strip 24 on the container edge 23 when the door 4 is closed.
  • the formation 34 which is engaged by the web 30 is provided with holding elements 37 in the region of vertical sections of the formation 34. Door racks or the like can be attached to such holding elements 37.
  • the inner door cover 33 is additionally supported on the horizontal parts of the formation 34 which are designed in the manner of strips and which form an all-round closed holding frame.
  • the interior for functional parts such as evaporators, storage plates, lighting or regulators and the like, can thus be constructed without any intervention in the vacuum-insulated walls.
  • the support elements 12, 33 used subsequently can also be used Form rounded edges ergonomically and easily cleanable.

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)
  • Refrigerator Housings (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
EP94116778A 1994-03-17 1994-10-25 Réfrigérateur comportant des parois isolées sous vide Expired - Lifetime EP0672876B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4409091A DE4409091A1 (de) 1994-03-17 1994-03-17 Kühlgerät mit vakuumisolierten Wänden
DE4409091 1994-03-17

Publications (2)

Publication Number Publication Date
EP0672876A1 true EP0672876A1 (fr) 1995-09-20
EP0672876B1 EP0672876B1 (fr) 1998-05-13

Family

ID=6513044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94116778A Expired - Lifetime EP0672876B1 (fr) 1994-03-17 1994-10-25 Réfrigérateur comportant des parois isolées sous vide

Country Status (2)

Country Link
EP (1) EP0672876B1 (fr)
DE (2) DE4409091A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2789947A4 (fr) * 2011-12-06 2015-07-29 Toshiba Kk Réfrigérateur
AT14766U1 (de) * 2015-06-18 2016-05-15 Landig & Lava Gmbh & Co Kg Fleischreifevorrichtung zur Trocknung von Fleisch
EP2500679A3 (fr) * 2011-03-17 2018-04-25 Liebherr-Hausgeräte Ochsenhausen GmbH Elément d'isolation, notamment élément d'isolation pour un réfrigérateur et/ou un congélateur
JP2018128245A (ja) * 2018-02-07 2018-08-16 東芝ライフスタイル株式会社 断熱箱体
US20200208903A1 (en) * 2018-12-29 2020-07-02 Whirlpool Corporation Metallic trim breaker for a refrigerating appliance having a thermal bridge geometry

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DE19821823B4 (de) * 1998-05-15 2009-07-16 AEG Hausgeräte GmbH Kühl- und/oder Gefriergerät mit einem Halter für eine Flasche und/oder eine Dose
DE202004011664U1 (de) * 2004-07-26 2005-12-15 Liebherr-Hausgeräte Lienz Gmbh Kühlgerät
DE102010003458B4 (de) * 2010-03-30 2016-12-15 BSH Hausgeräte GmbH Kältegerät, insbesondere Standkältegerät
US9221210B2 (en) 2012-04-11 2015-12-29 Whirlpool Corporation Method to create vacuum insulated cabinets for refrigerators
US9038403B2 (en) 2012-04-02 2015-05-26 Whirlpool Corporation Vacuum insulated door structure and method for the creation thereof
US10052819B2 (en) 2014-02-24 2018-08-21 Whirlpool Corporation Vacuum packaged 3D vacuum insulated door structure and method therefor using a tooling fixture
US9476633B2 (en) 2015-03-02 2016-10-25 Whirlpool Corporation 3D vacuum panel and a folding approach to create the 3D vacuum panel from a 2D vacuum panel of non-uniform thickness
US10161669B2 (en) 2015-03-05 2018-12-25 Whirlpool Corporation Attachment arrangement for vacuum insulated door
US9897370B2 (en) 2015-03-11 2018-02-20 Whirlpool Corporation Self-contained pantry box system for insertion into an appliance
US9441779B1 (en) 2015-07-01 2016-09-13 Whirlpool Corporation Split hybrid insulation structure for an appliance
US10429125B2 (en) 2015-12-08 2019-10-01 Whirlpool Corporation Insulation structure for an appliance having a uniformly mixed multi-component insulation material, and a method for even distribution of material combinations therein
US10422573B2 (en) 2015-12-08 2019-09-24 Whirlpool Corporation Insulation structure for an appliance having a uniformly mixed multi-component insulation material, and a method for even distribution of material combinations therein
US11052579B2 (en) 2015-12-08 2021-07-06 Whirlpool Corporation Method for preparing a densified insulation material for use in appliance insulated structure
US10222116B2 (en) 2015-12-08 2019-03-05 Whirlpool Corporation Method and apparatus for forming a vacuum insulated structure for an appliance having a pressing mechanism incorporated within an insulation delivery system
US10041724B2 (en) 2015-12-08 2018-08-07 Whirlpool Corporation Methods for dispensing and compacting insulation materials into a vacuum sealed structure
WO2017100037A1 (fr) 2015-12-09 2017-06-15 Whirlpool Corporation Structures d'isolation sous vide avec isolants multiples
US11994336B2 (en) 2015-12-09 2024-05-28 Whirlpool Corporation Vacuum insulated structure with thermal bridge breaker with heat loop
US10422569B2 (en) 2015-12-21 2019-09-24 Whirlpool Corporation Vacuum insulated door construction
US10610985B2 (en) 2015-12-28 2020-04-07 Whirlpool Corporation Multilayer barrier materials with PVD or plasma coating for vacuum insulated structure
US10018406B2 (en) 2015-12-28 2018-07-10 Whirlpool Corporation Multi-layer gas barrier materials for vacuum insulated structure
US10807298B2 (en) 2015-12-29 2020-10-20 Whirlpool Corporation Molded gas barrier parts for vacuum insulated structure
US11247369B2 (en) 2015-12-30 2022-02-15 Whirlpool Corporation Method of fabricating 3D vacuum insulated refrigerator structure having core material
EP3443284B1 (fr) 2016-04-15 2020-11-18 Whirlpool Corporation Structure de réfrigérateur à isolation sous vide, dotée de caractéristiques tridimensionnelles
EP3443285B1 (fr) 2016-04-15 2021-03-10 Whirlpool Corporation Armoire de réfrigérateur à isolation sous vide
WO2018022007A1 (fr) 2016-07-26 2018-02-01 Whirlpool Corporation Coupe-garniture à structure isolée sous vide
US11391506B2 (en) 2016-08-18 2022-07-19 Whirlpool Corporation Machine compartment for a vacuum insulated structure
US10352613B2 (en) 2016-12-05 2019-07-16 Whirlpool Corporation Pigmented monolayer liner for appliances and methods of making the same
CN113771284B (zh) 2017-10-05 2023-07-14 惠而浦公司 用于结合在器具内的隔热结构的填充端口
US10907888B2 (en) 2018-06-25 2021-02-02 Whirlpool Corporation Hybrid pigmented hot stitched color liner system
US10907891B2 (en) 2019-02-18 2021-02-02 Whirlpool Corporation Trim breaker for a structural cabinet that incorporates a structural glass contact surface

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DE1451059A1 (de) * 1963-02-14 1969-07-10 Electrolux Ab Kuehlschrank,insbesondere Gefrierschrank,mit einem durch Fachbretter in mehrere Faecher unterteilten und in das Schrankgehaeuse einbringbaren,die Innenverkleidung bildenden Einsatz aus elastischem Kunststoff
EP0260699A2 (fr) * 1986-09-18 1988-03-23 ZELTRON - Istituto Zanussi per la Ricerca S.p.A. Méthode pour la fabrication d'un refrigerateur
US4815685A (en) * 1987-10-26 1989-03-28 General Electric Company Shelf assembly
JPH03140782A (ja) * 1989-10-26 1991-06-14 Mitsubishi Electric Corp 冷蔵庫の断熱箱体
DE9204365U1 (fr) * 1992-03-31 1992-07-02 Liebherr-Hausgeraete Gmbh, 7955 Ochsenhausen, De
DE9317319U1 (de) * 1993-11-12 1994-02-10 Tischner Ursula Dipl Designeri Der umweltschonende Kühlschrank
DE4230065A1 (de) * 1992-09-09 1994-03-10 Degussa Verfahren zum Anbringen von Formkörpern in Kältegeräten

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DE7131510U (de) * 1971-08-18 1971-11-04 Bbc Ag Verschwenkbare verschlusswand insbesondere tuer oder deckel fuer kuehlmoebel
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GB2129114B (en) * 1982-10-20 1986-04-16 Christopher Hugh Josep Simpson Storage of goods in a cabinet
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DE1451059A1 (de) * 1963-02-14 1969-07-10 Electrolux Ab Kuehlschrank,insbesondere Gefrierschrank,mit einem durch Fachbretter in mehrere Faecher unterteilten und in das Schrankgehaeuse einbringbaren,die Innenverkleidung bildenden Einsatz aus elastischem Kunststoff
EP0260699A2 (fr) * 1986-09-18 1988-03-23 ZELTRON - Istituto Zanussi per la Ricerca S.p.A. Méthode pour la fabrication d'un refrigerateur
US4815685A (en) * 1987-10-26 1989-03-28 General Electric Company Shelf assembly
JPH03140782A (ja) * 1989-10-26 1991-06-14 Mitsubishi Electric Corp 冷蔵庫の断熱箱体
DE9204365U1 (fr) * 1992-03-31 1992-07-02 Liebherr-Hausgeraete Gmbh, 7955 Ochsenhausen, De
DE4230065A1 (de) * 1992-09-09 1994-03-10 Degussa Verfahren zum Anbringen von Formkörpern in Kältegeräten
DE9317319U1 (de) * 1993-11-12 1994-02-10 Tischner Ursula Dipl Designeri Der umweltschonende Kühlschrank

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2500679A3 (fr) * 2011-03-17 2018-04-25 Liebherr-Hausgeräte Ochsenhausen GmbH Elément d'isolation, notamment élément d'isolation pour un réfrigérateur et/ou un congélateur
EP2789947A4 (fr) * 2011-12-06 2015-07-29 Toshiba Kk Réfrigérateur
AT14766U1 (de) * 2015-06-18 2016-05-15 Landig & Lava Gmbh & Co Kg Fleischreifevorrichtung zur Trocknung von Fleisch
JP2018128245A (ja) * 2018-02-07 2018-08-16 東芝ライフスタイル株式会社 断熱箱体
US20200208903A1 (en) * 2018-12-29 2020-07-02 Whirlpool Corporation Metallic trim breaker for a refrigerating appliance having a thermal bridge geometry
US10801773B2 (en) * 2018-12-29 2020-10-13 Whirlpool Corporation Metallic trim breaker for a refrigerating appliance having a thermal bridge geometry

Also Published As

Publication number Publication date
DE4409091A1 (de) 1995-09-21
DE59405957D1 (de) 1998-06-18
EP0672876B1 (fr) 1998-05-13

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