EP1208339B1 - Paroi isolante contre la chaleur - Google Patents

Paroi isolante contre la chaleur Download PDF

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Publication number
EP1208339B1
EP1208339B1 EP00947990A EP00947990A EP1208339B1 EP 1208339 B1 EP1208339 B1 EP 1208339B1 EP 00947990 A EP00947990 A EP 00947990A EP 00947990 A EP00947990 A EP 00947990A EP 1208339 B1 EP1208339 B1 EP 1208339B1
Authority
EP
European Patent Office
Prior art keywords
inner lining
thermally insulating
profile member
outer casing
insulating 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.)
Expired - Lifetime
Application number
EP00947990A
Other languages
German (de)
English (en)
Other versions
EP1208339A1 (fr
Inventor
Jürgen HIRATH
Stefan Holzer
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
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1208339A1 publication Critical patent/EP1208339A1/fr
Application granted granted Critical
Publication of EP1208339B1 publication Critical patent/EP1208339B1/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
    • 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 heat-insulating wall with a largely vacuum-tight outer jacket and a spaced, largely vacuum-tight inner lining, wherein the inner lining and the outer shell are connected to each other by a at least approximately in cross-section U-shaped, a membrane-like, thin-walled base having connecting profile vacuum-tight which, together with the outer shell and the inner lining, encloses a space filled with heat-insulating material, the legs of the connecting profile engaging over the outer jacket and the inner lining.
  • the vacuum-insulated wall known from this document has two shell walls made, for example, of stainless steel, which are connected to one another in a vacuum-tight manner by a connecting profile arranged at their free edges and having a U-shaped cross-section.
  • a connecting profile arranged at their free edges and having a U-shaped cross-section.
  • the legs of the U-profile are welded to the free ends of the shell walls, parallel to these, for example by a beam welding process.
  • clamping and support tools are required.
  • the US-A-3156975 shows a heat-insulating wall according to the preamble of claim 1 .
  • the invention has for its object to improve a heat-insulating wall according to the preamble of claim 1 with simple constructive measures.
  • an increased pressure-resistant open-cell heat insulation material such as an increased to increase its compressive strength at elevated, lying above the glass temperature temperature open-cell polymer foam such.
  • polystyrene foam under the manufacturer's name DOW INSTILL ® , also unnecessary tools for supporting the sweat-resistant bracing of the outer shell or the inner lining with the legs of the U-shaped connection profile resulting clamping forces.
  • DOW INSTILL ® also unnecessary tools for supporting the sweat-resistant bracing of the outer shell or the inner lining with the legs of the U-shaped connection profile resulting clamping forces.
  • the inverted over the free ends of the outer shell and the inner lining U-shaped connection profile allows in comparison to the prior art, an optimized use of the heat-insulating walls, as these also on the Junction of their outer shell walls now have full thermal insulation capacity.
  • the object of the invention it is provided that is provided on 'the inner lining and the outer jacket heat insulation side, at least approximately over the length and height of the legs of the U-shaped connection profile a Deutschenlegeelement.
  • a backing element ensures that the heat produced during the welding operation of the limbs of the U-shaped connection profile with the outer shell or the inner lining is at least largely shielded by the open-celled thermal insulation material introduced as a support body between the outer shell and the inner lining, which results in process control the welding process, namely the clearly indispensable in vacuum-tight connection of the connection profile with the outer shell or the inner lining thorough welding.
  • a backing has shown to shield the welding heat occurring during welding of the introduced as a support body between the outer shell and the inner lining open-cell heat insulation material, if according to a next advantageous embodiment of the subject Is provided invention that the backing element consists of a stainless steel strip or an aluminum strip with an at least the material thickness of the outer shell or the inner lining having material thickness. With material thicknesses of the order of 1 mm, good heat shielding results have already been shown.
  • the U-shaped connection profile for connection of the outer shell and the inner lining of several longitudinal sections is composed, the joints forming ends are at least largely vacuum-tight connected to each other.
  • connection profile in sections along the edges to be joined between the inner lining and the outer jacket simplifies the manufacture of the vacuum-tight connection, e.g. made by gluing or welding, considerably, whereby the manufacturing costs for the heat-insulating wall are significantly reduced.
  • the support elements serving as supports for the membrane-like base of the connection profiles at the same time facilitate the vacuum-tight connection of the ends of the longitudinal sections at the joints.
  • the U-shaped support elements on the outer shell on the one hand and the inner lining on the other hand are particularly simple and process-reliable fixable, if according to a next preferred embodiment of the subject invention, it is provided that the U-shaped support element with its legs heat-insulating on the inner lining and the outer shell is fixed ,
  • the U-shaped connection profile is covered by a U-shaped cover profile, which overlaps with its legs, the legs of the connection profile and is supported on this. Due to the U-shaped design of the cover profile, the connection profile is vacuum-tight both on its outer jacket or on the inner lining, for example, by welding or gluing fixed legs and protected on its shock-sensitive membrane-like base.
  • the cover has for its support holding means which are able to support the cover with its base to form a receiving space at a distance from the base of the connection profile.
  • the former is protected even with a relatively high impact load of the cover profile.
  • the space allows in a space-saving and aesthetic way the arrival and placement of other functional parts, such as an anchor for a coming in a refrigerator door magnetic seal or a heating cable to prevent condensation of the refrigerator housing in the region of its access opening.
  • the cover when, according to a next advantageous embodiment of the subject invention provides that the holding means are formed on the cover as arranged on the inside of its legs at a distance from the height of the connection profile retaining strips.
  • a heat-insulating wall is formed, if it is provided according to a next preferred embodiment of the subject invention that the inner lining, the outer jacket and the connecting profile of thin-walled stainless steel or aluminum laminated plastic are formed.
  • a refrigeration device with a heat-insulating housing and at least one heat-insulating door when provided according to a further preferred embodiment of the object of the invention that the wall of the housing and the door after a of claims 1 to 11 are formed.
  • a household stove with a baking chamber surrounding thermally insulating oven muffle is also formed particularly favorable in terms of its thermal insulation capacity in view of the approach to be brought strength of the heat-insulating walls.
  • FIG. 1 shows a heat-insulating housing 10 suitable for a household refrigerating appliance, such as a refrigerator or freezer, using vacuum insulation technology, within which a useful space 11 designed, for example, as a refrigerator or freezer compartment is provided.
  • a vacuum-tight for example, from a 0.4 mm thick stainless steel sheet or corrosion-resistant steel sheet shaped réelleverKleidung 12.
  • a vacuum-tight outer casing 13 Spaced apart from the inner lining 12, a vacuum-tight outer casing 13, likewise formed from 0.4 mm thick stainless steel sheet or corrosion-protected sheet steel, is provided which, together with the inner lining 12, forms the enveloping layers of the housing 10.
  • an evacuated heat insulating material 14 serving for supporting the inner lining 12 or the outer sheath 13 in the evacuated state of the housing 10, such as open-cell polyurethane foam or open-cell polystyrene foam, is introduced.
  • heat insulating material 14 also serves as a heat-insulating evakuierbare filling a pivotally hinged to the housing 10 door 15, which like the housing 10 at its the Nutzraum 11 inside facing a vacuum-tight inner lining 16 and a vacuum-tight outer jacket 17 spaced therefrom, which like the inner lining 16, for example Stainless steel sheet or corrosion-resistant steel sheet with a material thickness of 0.4 mm is formed at least largely without cutting.
  • connection profile 18 which is identical for the door 15 and the housing 10 and which for the production of the door body together with the inner lining 16 and the outer shell 17 and for the production of the housing body with the inner lining 12 and the outer jacket 13 is used together with the enclosure walls of the door 15 and the enclosure walls of the housing 10, the connection profile 18 encloses an evacuable space, which with the heat insulating material 14 for supporting the inner lining 12 and the outer shell serving as the enveloping walls 13 or to support the inner lining 16 and the outer shell 17 in the evacuated state of the housing 10 and the door 15 is filled.
  • the connecting profile 18 described below by way of the example of the housing 10 has two U-profile legs 19, which are connected to one another by a thin-walled base 20 of a membrane-like design the material thickness of the inner linings or the outer shells having U-profile legs 19 are made of vacuum-tight material such as stainless steel or the like.
  • the connecting section 18 engages with its U-profile legs 19, the inner lining 16 and the outer shell 17 and the inner lining 12 and the outer shell 13 such that the outside thereof with the inside of the U-profile legs 19 and the base 20 with its inside with the free ends the inner lining 12 or 16 or the outer sheath 13 or 17 comes to rest.
  • the cross-sectionally U-shaped connection profile 18 along the free, vacuum-tight edges to be joined between the inner panel 12 and the outer shell 13 and the inner panel 16 and the outer shell 17 is divided into a plurality of longitudinal sections 21, wherein the in a certain joining distance from each other arranged ends 22 are supported on a cross-sectional U-shaped support member 23.
  • This is fixed with its legs on the mutually facing inner sides of the inner lining 12 and the outer shell 13 and the inner lining 16 and the outer shell 17, wherein the base of the U-shaped support member 23 at least substantially equal in height with the free ends of the inner lining 12 and 16 and the outer sheath 13 or 17 and serves as a support surface for the membrane-like base 20 of the sections 21.
  • the support elements 23 are adjoined by flat-profile abutment elements 24 formed approximately at the same height as the legs thereof, the material thickness of which substantially corresponds to that of the legs of the support elements 23.
  • backing elements 24 serve as the legs of the likewise made of stainless steel support elements 23 for the most extensive insulation during vacuum-tight welding of composite of several longitudinal sections 21 Vietnamesesprofiles 18 on the inner lining 12 and the For vacuum-tight attachment of the kausprofiles 18 with the inner lining 12 and the outer shell 13 and the inner lining 16 are on the one hand along the U-profile legs 19 extending welds S1 provided, the welding depth extends up to the backing elements 24 and in the region of the support elements 23 to the legs down.
  • welds S2 are provided, which intersect with the welds S1 in the region of the U-profile legs 19, whereby the connecting profile 18 formed from individual partial longitudinal sections 21 both in Area of the support elements 23 and in the area outside of this vacuum-tight to the inner lining 12 and the outer shell 13 and the inner lining 16 and the outer shell 17 is fixed.
  • a cross-sectionally U-shaped, for example, made of plastic injection molded covering 25 is provided.
  • the cover 26 is slipped over the connection profile 18 in the assembled state and has U-profile legs 26 which protrude with its free end against the free end of the U-profile legs 19 and are provided on their mutually facing inner sides with mitangeformten retaining strips 27 which along the U Profile legs 26 extend parallel to each other.
  • mitangeformten retaining strips 27 one is provided in the vicinity of the free end of each U-profile leg 26, while the other retaining strips 27 are arranged closer to the root of the U-profile legs 26 and at a clear distance of the lateral height h of the connection profile 18 to the the free leg ends provided retaining strips 27 are spaced.
  • the two U-profile legs 26 interconnecting base 28 is provided, which is arranged in the assembled state of the cover 25 at a distance above the base 20, whereby a gap 29 is formed.
  • the cover 25 in which this is provided by means of its provided on the U-profile legs 26, respectively the lateral portion of the connecting section 18 between them receiving retaining strips 27 form-fitting manner on the connection profile 18 is in the interspace formed thereby 29 serving as a heating heating cable 30, for example in the form of a hot gas line introduced to avoid condensation of the connection profile 18 and fixed by means not shown holding means of the cover 25.

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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)
  • Thermal Insulation (AREA)
  • Building Environments (AREA)
  • Refrigerator Housings (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (15)

  1. Paroi calorifuge avec une enveloppe extérieure (13, 17) substantiellement étanche au vide et un revêtement intérieur (12, 16) espacé de celle-ci, substantiellement étanche au vide, le revêtement intérieur (12, 16) et l'enveloppe extérieure (13, 17) étant reliés ensemble de manière étanche au vide par un profil de liaison (18) formé au moins approximativement en forme de U en section transversale qui, conjointement avec l'enveloppe extérieure (13, 17) et le revêtement intérieur (12, 16) entoure un espace intermédiaire rempli d'un matériau calorifuge (14), les branches (19) du profil de liaison (18) chevauchant l'enveloppe extérieure (13, 17) et le revêtement intérieur (12, 16), le profil de liaison (18) conçu en forme de U possédant une base (20) conçue de type membrane, à parois minces et caractérisée en ce que les branches (19) du profil de liaison conçu en forme de U (18) présentent essentiellement l'épaisseur de matériau du revêtement intérieur (12, 16) resp. de l'enveloppe extérieure (13, 17).
  2. Paroi calorifuge selon la revendication 1, caractérisée en ce que sur le revêtement intérieur (12, 16) et l'enveloppe extérieure (13, 17) un élément intermédiaire (24) est prévu du côté calorifuge au moins approximativement sur la longueur et la hauteur des branches (19) du profil de liaison en forme de U (18).
  3. Paroi calorifuge selon la revendication 2, caractérisée en ce que l'élément intermédiaire (24) se compose d'une bande en acier fin ou d'une bande en aluminium avec une épaisseur de matériau présentant au moins l'épaisseur de matériau de l'enveloppe extérieure (13, 17) resp. du revêtement intérieur (12, 16).
  4. Paroi calorifuge selon la revendication 1 ou 2, caractérisée en ce que le profil de liaison en forme de U (18) est composé pour la liaison de l'enveloppe extérieure (13, 17) et du revêtement intérieur (12, 16) à partir de plusieurs sections longitudinales (21), dont les extrémités formant des zones de joint (22) sont reliées ensemble au moins de manière substantiellement étanche au vide.
  5. Paroi calorifuge selon la revendication 4, caractérisée en ce que sur les zones de joint est prévu un élément d'appui (23) conçu en forme de U, franchissant au moins les zones de joint, sur lesquelles reposent les extrémités des sections longitudinales (21) du profil de liaison (18) et sont reliées ensemble de manière étanche au vide.
  6. Paroi calorifuge selon la revendication 5, caractérisée en ce que l'élément d'appui en forme de U (23) est fixé avec ses branches du côté calorifuge sur le revêtement intérieur (12, 16) et l'enveloppe extérieure (13, 17).
  7. Paroi calorifuge selon l'une des revendications 1 à 6, caractérisée en ce que le profil de liaison en forme de U (18) est recouvert par un profil de recouvrement en forme de U (25), lequel chevauche par ses branches (26) les branches (19) du profil de liaison (18) et est maintenu sur celui-ci.
  8. Paroi calorifuge selon la revendication 7, caractérisée en ce que le profil de recouvrement (25) présente des moyens de maintien (27) pour sa fixation qui permettent de maintenir le profil de recouvrement (25) par sa base en formant un cadre de logement (29) à distance par rapport à la base (20) du profil de liaison (18).
  9. Paroi calorifuge selon la revendication 8, caractérisée en ce que les moyens de maintien sont conçus sur le profil de recouvrement (25) en tant que baguettes de maintien (27) disposées sur le côté interne de ses branches (26) à distance de la hauteur du profil de liaison (18).
  10. Paroi calorifuge selon la revendication 8, caractérisée en ce que le cadre de logement (29) sert à insérer un chauffage (30) de type tubulaire maintenu sur le profil de recouvrement (25).
  11. Paroi calorifuge selon l'une des revendications 1 à 10, caractérisée en ce que le revêtement intérieur (12, 16) de l'enveloppe extérieure (13, 17) et le profil de liaison (18) sont formés en acier fin ou en matière synthétique plaquée d'aluminium.
  12. Paroi calorifuge selon la revendication 1, caractérisée en ce que le matériau calorifuge est formé de mousse polymère à alvéoles ouvertes, qui est chauffée à une température se trouvant au-dessus de sa température de vitrification et est comprimée sous pression à cette température.
  13. Appareil frigorifique avec un corps calorifuge (10) et au moins une porte (15) conçue de manière calorifuge, caractérisé en ce que la paroi du corps (10) et de la porte (25) sont conçues selon l'une des revendications 1 à 12.
  14. Cuisinière domestique avec une moufle de cuisinière entourant un espace de cuisson, réalisée de manière calorifuge, caractérisée en ce que la paroi de la moufle de cuisinière est conçue selon l'une des revendications 1 à 12.
  15. Appareil ménager à utilisation d'eau, tel qu'un lave-linge, un lave-vaisselle avec un corps réalisé de manière calorifuge, caractérisé en ce que la paroi du corps est conçue selon l'une des revendications 1 à 12.
EP00947990A 1999-07-23 2000-07-21 Paroi isolante contre la chaleur Expired - Lifetime EP1208339B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29912917U 1999-07-23
DE29912917U DE29912917U1 (de) 1999-07-23 1999-07-23 Wärmeisolierende Wandung
PCT/EP2000/007031 WO2001007848A1 (fr) 1999-07-23 2000-07-21 Paroi isolante contre la chaleur

Publications (2)

Publication Number Publication Date
EP1208339A1 EP1208339A1 (fr) 2002-05-29
EP1208339B1 true EP1208339B1 (fr) 2007-08-08

Family

ID=8076571

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00947990A Expired - Lifetime EP1208339B1 (fr) 1999-07-23 2000-07-21 Paroi isolante contre la chaleur

Country Status (10)

Country Link
US (1) US6725624B2 (fr)
EP (1) EP1208339B1 (fr)
CN (1) CN1318813C (fr)
AT (1) ATE369531T1 (fr)
AU (1) AU6159200A (fr)
BR (1) BR0012699A (fr)
DE (2) DE29912917U1 (fr)
ES (1) ES2290047T3 (fr)
TR (1) TR200200104T2 (fr)
WO (1) WO2001007848A1 (fr)

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KR102617454B1 (ko) * 2018-06-27 2023-12-26 엘지전자 주식회사 진공단열체, 및 냉장고
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US20020100250A1 (en) 2002-08-01
ATE369531T1 (de) 2007-08-15
DE50014549D1 (de) 2007-09-20
AU6159200A (en) 2001-02-13
DE29912917U1 (de) 1999-11-18
WO2001007848A1 (fr) 2001-02-01
BR0012699A (pt) 2002-04-09
ES2290047T3 (es) 2008-02-16
EP1208339A1 (fr) 2002-05-29
US6725624B2 (en) 2004-04-27
CN1318813C (zh) 2007-05-30
CN1364229A (zh) 2002-08-14
TR200200104T2 (tr) 2002-05-21

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