EP2705313A2 - Paroi thermo-isolante - Google Patents

Paroi thermo-isolante

Info

Publication number
EP2705313A2
EP2705313A2 EP12717130.4A EP12717130A EP2705313A2 EP 2705313 A2 EP2705313 A2 EP 2705313A2 EP 12717130 A EP12717130 A EP 12717130A EP 2705313 A2 EP2705313 A2 EP 2705313A2
Authority
EP
European Patent Office
Prior art keywords
heat
insulating wall
wall according
narrow side
layers
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
EP12717130.4A
Other languages
German (de)
English (en)
Other versions
EP2705313B1 (fr
Inventor
Silvia Gerstner
Alexander GÖRZ
Michael Kordon
Claudia Rupp
Jochen ZAUNERT
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=46001287&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2705313(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL12717130T priority Critical patent/PL2705313T3/pl
Publication of EP2705313A2 publication Critical patent/EP2705313A2/fr
Application granted granted Critical
Publication of EP2705313B1 publication Critical patent/EP2705313B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F25D23/06—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
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat

Definitions

  • the present invention relates to the construction of a heat-insulating wall
  • a wall of the body or door of the housing of a refrigeration device in particular a household refrigerator.
  • the housing of a household refrigerator conventionally includes a in
  • battered door which together enclose a storage chamber for refrigerated goods.
  • the construction of the door and the walls of the carcass is similar. Both each comprise a substantially plate-shaped heat-insulating core which stiff between
  • a cladding element which covers a major surface of the core facing the bearing chamber, is usually deep-drawn from plastic, while the cladding element on the outside mostly consists of a
  • Sheet metal blank is formed.
  • the inner and outer lining elements are firmly joined together at their edges, and the resulting cavity is injected with expanding resin to form the heat-insulating core.
  • Thermal expansion coefficients of the cladding elements differ from each other and from the thermal expansion coefficient of the core.
  • the foaming and setting of the thermally insulating core forming resin takes place at elevated temperature, so that a wall made in this way is already after cooling of the core, before operation of the refrigerator, under thermal stress.
  • the temperature difference between the bearing chamber and the environment still increases the stresses to which the heat-insulating wall is exposed. Excessive stress can cause the surfaces of the wall to deform or the entire wall to bend. Such deformation can cause the door does not close tightly, and that a constant influx of hot air into the storage chamber of the refrigerator greatly increases its energy requirements.
  • Built-in refrigerator can be a constant escape of cold air from the storage chamber cool adjacent furniture surfaces to such an extent that condensation condenses and damages the furniture.
  • a second common approach is to mount stiffening rails inside the wall.
  • Stiffening rails which can accommodate considerable bending moments, can conveniently be accommodated within hollow stiles, which are often provided on the inner chamber facing the bearing chamber, to attach it to door racks or the like. The attachment of this
  • Reinforcing bars are labor-intensive, and since they need to extend across the main surfaces of the wall to be effective, they form thermal bridges, which also increase the energy requirements of the refrigerator.
  • the object of the invention is to provide a heat-insulating wall for a refrigeration device, in particular household refrigeration appliance, which is inexpensive and easy to implement and yet has a high resistance to thermal stresses.
  • a refrigeration device Under a refrigeration device is in particular a household refrigeration appliance understood, ie a refrigeration appliance for household management in households or possibly in the
  • Catering area is used, and in particular serves to store food and / or drinks in household quantities at certain temperatures, such as a refrigerator, a freezer, a fridge-freezer or a wine storage cabinet.
  • the object is achieved by providing, in the case of a heat-insulating wall, in particular for a refrigeration appliance, with a thermally insulating core, the first and second main surfaces facing each other and at least one connecting the main surfaces
  • Main surface overlapping core portion of the first cladding element is connected and each other of the superimposed layers extending between the first layer and the narrow side of the heat-insulating core, then the
  • the inventive heat-insulating wall is not readily distinguishable from the outside of a conventionally constructed wall from the outside.
  • superimposed layers is connected to the first via a second of the superimposed layers and the third layer between the narrow side of the
  • heat-insulating core and the second layer is arranged.
  • the cladding element preferably has a strip extending from the narrow side onto the second main surface.
  • the first cladding element encloses the heat-insulating core in a form-fitting manner, and also facilitates the joining of the first cladding element with at least one second cladding element to a shell completely enclosing the heat-insulating core.
  • the strip extending on the second main surface may be formed by an edge region of the blank, ie those parts of the blank which will form the superimposed layers of the narrow side on the finished first lining element, are located between an area forming the strip and the core area.
  • the strip may also be formed from a region of the blank which is flanked on both sides by regions which will form superposed layers of the narrow side.
  • the spreading on the second main surface strip may have at least locally several superimposed layers of the sheet.
  • a cut edge of the blank is preferably concealed under a sheet of sheet extending thereover, on the one hand for aesthetic reasons, on the other hand to avoid the risk of injury to the possibly sharp cut edge.
  • the width of the hidden layer may be adjusted as needed without being apparent on the finished package.
  • the first trim element may form a rib projecting beyond the second main surface.
  • a rib may contribute to the rigidity of the wall as the superimposed layers, on the other hand it offers protection for a sealing profile conventionally attached to an edge of the second main surface, in particular if the wall is the door of a refrigerator.
  • the rib preferably comprises two layers of the flat material which are connected to one another at a vertex of the rib facing away from the heat-insulating core. Preferably, at least the outer of these two layers is continuous and straight in a position of the narrow side. The superimposed layers, no matter at which point of the first
  • Cladding element are preferably integrally connected via articulation zones.
  • a connection between two layers is not limited to one of their edges interconnecting kink zone.
  • at least two of the superimposed layers can be glued together or welded together.
  • a welding is particularly useful between two hidden under an outer layer inner layers, since such a weld is not visible on the surface of the heat-insulating wall.
  • a second cladding element may be provided which covers the second main surface.
  • a groove may be formed on the first trim member to receive an edge of the second trim member.
  • the heat-insulating wall may, as mentioned, in particular a door of a
  • FIG. 1 shows a cross section through an edge region of a conventional
  • FIG. 2 shows a cross section analogous to FIG. 1 according to a first embodiment of the invention
  • FIG. 3 shows a cross section according to a second embodiment of the invention
  • FIG. 4 shows a partial cross section of a first cladding element according to a third embodiment of the invention
  • Fig. 5 is a cross-section similar to Fig. 4 according to a fourth embodiment of the
  • FIG. 6 shows a partial cross section through a first and a second trim part according to a fifth embodiment of the invention
  • FIG. 7 shows a cross section through a front edge region of a side wall of a
  • Refrigerating appliance according to a sixth embodiment of the invention.
  • Fig. 1 shows a cross section through an edge region of a door 1 of the housing of a household refrigerator with a conventional internal reinforcement.
  • heat-insulating core 2 is enclosed between cladding elements 3, 4, wherein the one outer side of the door 1 forming the first cladding element 3 formed of sheet metal and the inwardly facing second cladding element 4 made of plastic is deep drawn.
  • the cladding element 3 covers an outwardly facing first main surface 5 of the core 2, a narrow side 6 and an edge region of the second main surface 7 facing the body (not shown).
  • An edge of the second cladding element 4 is on an edge strip 8 extending onto the second main surface 7 attached to the first cladding element 3.
  • Cladding element 4 and its edge extends a circumferential groove 10 in which a magnetic seal 1 1 is anchored.
  • the door 1 is stiffened by a metallic
  • Cladding elements 3, 4 formed cavity.
  • Fig. 2 shows a section through an edge region of a door 21 for a
  • Household refrigerator housing according to the present invention.
  • an outer and an inner cladding element 23, 24 are joined together at their edges to form a cavity which is foamed with a synthetic resin to form a heat-insulating core 22.
  • the sheet metal bent outer cladding element 23 comprises a planar core portion 34 covering the outwardly directed main surface 25 of the heat insulating core 22, and three layers 35, 36, 37 overlying the narrow side 26 of the core 22.
  • the outer of these layers, 35 is connected to the core region 34 via a 90 ° bend 38.
  • the middle layer 36 is in each case over 180 ° -Knickzonen 39 with the outer
  • Layer 35 and the core 2 directly contacting inner layer 37 is connected.
  • the inner layer 37 is adjoined by an edge strip 28 which extends onto the rear side 27 of the core 22.
  • the edge strip 28 is double-layered over a large part of its width, wherein a cutting edge 42 closing the inner layer 40 is hidden under an outer layer 41.
  • Cladding element 24 contacts the inner layer 40 and may be attached thereto e.g. be attached by gluing.
  • a groove 30 extends at the edge of the cladding element 4 in the immediate vicinity of the edge strip 28, so that a not shown, mounted in the groove 30 magnetic seal a transition between the
  • Covering elements 23, 24 can cover.
  • the stiffening which is achieved by the three layers 35, 36, 37 on the narrow side 26 and the two layers 40, 41 of the edge strip 28, allows to dispense with stiffening installations inside the door 21, which increases the risk of the emergence of poor thermal insulation cavities in the core 22 significantly reduced.
  • An additional stiffening effect can be achieved if between two adjacent layers such as 35, 36 or 36, 37 or 40, 41 each have an adhesive layer is applied, preferably in a region of the layers such as 43, which faces away from a bending zone 39 connecting the layers.
  • the layers 36, 37 may also be fixedly connected to one another by spot welds 44, since these are not visible on the exposed surface of the door 21.
  • FIG. 3 differs from that of FIG. 2 in that on the inside of the door 21, the layers 35, 36 in a straight line over the plane of
  • Edge strip 28 are extended out to form a projecting rib 45. This broadening of the layers 35, 36 further increases the flexural rigidity of the door 21, in addition, the rib 45 forms a protection for the underlying magnetic seal.
  • the buckling zone 39 between the layers 36, 37 is slightly shifted back compared to FIG. 2, so that the narrow side 26 in a front quarter only from the outer layer 35 and in the rear three quarters of the three superimposed layers 35, 36, 37 is covered.
  • the edge of the inner trim member 24 may also be attached to the outer layer 41 of the trim strip 28.
  • the attachment shown in Fig. 2 in contact with the inner layer 40 has the advantage that during
  • Foaming the expanding foam pushes the lining element 24 against the edge strip 28, which favors the tightness of the contact area between the two.
  • Fig. 4 shows, for reasons of simplicity, only a partial section of the outer lining element 23 according to a third embodiment of the invention, it being understood that this as shown in Fig. 2 or 3 joined together with the inner lining element 24 and the resulting cavity is foamed to obtain the heat-insulating core 22.
  • the trim element 23 of FIG. 4 is similar to that of FIG. 3 in that an outer layer 35 on the narrow side 26 on the door front side is connected to the core region 34 and projects beyond the door rear side to form a rib 45.
  • the likewise contributing to the rib 45 middle position is here divided into two on the rear projecting rear portion 46 and one on the narrow side 26th extending front portion 47, which are connected to each other via the edge strips 28 forming layers 40, 41.
  • subsequent third narrow-side layer 37 is facing the core 22 in the representation of FIG. 4, but could also be received between the section 47 and the outer layer 35 or even engage between the layer 35 and the section 46 in the rib 45.
  • FIG. 6 largely corresponds to that in FIG. 3.
  • a difference from the embodiment of FIG. 3 is that FIG. 6 also shows that the edge strip 28 is formed from three layers 40, 41, 49 bent in a zigzag shape, wherein the two inner layers 40, 49 form a groove in which the edge of the inner lining element 24 is resiliently clamped.
  • Fig. 7 illustrates the transmission of the principle of the invention on a side wall 51 of a refrigerator housing.
  • the basic structure of the side wall 51 is the same as that of the door 21: a wall plate formed of sheet metal and an inner container made of plastic deep form inner and outer lining elements 23, 24, respectively, and a gap between the lining elements 23, 24 is through a heat-insulating core 22 filled out of expanded plastic.

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)
  • Thermal Insulation (AREA)

Abstract

Paroi thermo-isolante (21; 51), destinée notamment à un appareil de froid, comprenant une âme thermo-isolante (22) qui présente une première et une deuxième surface principale (25; 27) opposées et au moins un petit côté (26) reliant les surfaces principales (25; 27), ainsi qu'un élément d'habillage (23) formé à partir d'une partie découpée de matériau plat, s'étendant sur au moins la première surface principale (25) et le petit côté (26) et présentant, au moins localement sur ce dernier, des couches (35, 36, 37) de matériau plat superposées.
EP12717130.4A 2011-05-02 2012-04-25 Paroi thermo-isolante Active EP2705313B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12717130T PL2705313T3 (pl) 2011-05-02 2012-04-25 Termoizolacyjna ściana

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011075098A DE102011075098A1 (de) 2011-05-02 2011-05-02 Wärmeisolierende Wand
PCT/EP2012/057554 WO2012150159A2 (fr) 2011-05-02 2012-04-25 Paroi thermo-isolante

Publications (2)

Publication Number Publication Date
EP2705313A2 true EP2705313A2 (fr) 2014-03-12
EP2705313B1 EP2705313B1 (fr) 2021-06-09

Family

ID=46001287

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12717130.4A Active EP2705313B1 (fr) 2011-05-02 2012-04-25 Paroi thermo-isolante

Country Status (5)

Country Link
EP (1) EP2705313B1 (fr)
CN (1) CN103502755B (fr)
DE (1) DE102011075098A1 (fr)
PL (1) PL2705313T3 (fr)
WO (1) WO2012150159A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102599885B1 (ko) * 2015-10-15 2023-11-08 삼성전자주식회사 냉장고
TR201706514A2 (tr) * 2017-05-03 2018-11-21 Arcelik As Yalitim malzemesi̇ni̇n, yalitim hacmi̇nde dağilmasinin sağlandiği bi̇r soğutucu

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2747269A (en) * 1952-09-27 1956-05-29 Gen Electric Insulating structures
US2780845A (en) 1953-09-10 1957-02-12 Whirlpool Seeger Corp Fabricated refrigerator door
US2908947A (en) * 1957-11-12 1959-10-20 Edward M Meacham Door structure
US3359053A (en) 1966-01-17 1967-12-19 Gen Electric Refrigerator door seal
DE2420140A1 (de) 1974-04-25 1975-11-13 Bauknecht Gmbh G Tuer fuer kuehlschraenke und geschirrspuelmaschinen
JPS58106374A (ja) 1981-12-18 1983-06-24 松下冷機株式会社 断熱箱のパネル
JPS58169492U (ja) 1982-05-07 1983-11-11 株式会社日立製作所 冷蔵庫の断熱箱体
CA1263212A (fr) * 1988-11-02 1989-11-28 Ference Arpad Jozsa Panneau - sandwich isolant a revetement metallique
JPH0566084A (ja) 1991-09-05 1993-03-19 Matsushita Refrig Co Ltd 断熱箱体
JPH0664087U (ja) 1993-02-19 1994-09-09 株式会社富士通ゼネラル 電気冷蔵庫
KR19980014852A (ko) 1996-08-16 1998-05-25 김광호 냉장고의 외상 결합구조
CN1177722A (zh) * 1996-08-16 1998-04-01 三星电子株式会社 冰箱外壳的连接结构
KR100200782B1 (ko) 1996-08-16 1999-06-15 윤종용 냉장고의 도아용 철판 벤딩장치
JP2000266458A (ja) 1999-03-15 2000-09-29 Matsushita Refrig Co Ltd 冷蔵庫の箱体
SE519195C2 (sv) 2001-06-14 2003-01-28 Electrolux Ab Dörrtätning vid en kyl-eller frysmöbel
ES2232293B1 (es) 2003-08-11 2006-02-16 Bsh Electrodomesticos España S.A. Puerta de aparato frigorifico.
WO2005021891A1 (fr) * 2003-08-29 2005-03-10 Kingspan Holdings (Irl) Limited Panneau de faux plancher
DE102007055174A1 (de) 2007-11-19 2009-05-20 BSH Bosch und Siemens Hausgeräte GmbH Tür für ein Kältegerät

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2012150159A2 *

Also Published As

Publication number Publication date
DE102011075098A1 (de) 2012-11-08
EP2705313B1 (fr) 2021-06-09
WO2012150159A2 (fr) 2012-11-08
CN103502755B (zh) 2016-06-22
CN103502755A (zh) 2014-01-08
PL2705313T3 (pl) 2021-11-29
WO2012150159A3 (fr) 2012-12-27

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