EP1001233B1 - Caisse isolée thermiquement - Google Patents

Caisse isolée thermiquement Download PDF

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Publication number
EP1001233B1
EP1001233B1 EP99120955A EP99120955A EP1001233B1 EP 1001233 B1 EP1001233 B1 EP 1001233B1 EP 99120955 A EP99120955 A EP 99120955A EP 99120955 A EP99120955 A EP 99120955A EP 1001233 B1 EP1001233 B1 EP 1001233B1
Authority
EP
European Patent Office
Prior art keywords
thermally insulating
vacuum insulation
insulating housing
housing according
materials
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
EP99120955A
Other languages
German (de)
English (en)
Other versions
EP1001233A2 (fr
EP1001233A3 (fr
Inventor
Udo Dr. Wenning
Michael Dr. Neumann
Hans-Frieder Eberhardt
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 EP1001233A2 publication Critical patent/EP1001233A2/fr
Publication of EP1001233A3 publication Critical patent/EP1001233A3/fr
Application granted granted Critical
Publication of EP1001233B1 publication Critical patent/EP1001233B1/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
    • 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
    • F25D2400/08—Refrigerator tables

Definitions

  • the invention relates to a heat-insulating housing for storing refrigerated goods a heat-insulating door and vacuum insulation panels, which are wrapped in a diffusion protection film have sealed support body and which at least largely into a thermal insulation material of the housing produced by foaming and / or the door are embedded.
  • vacuum insulation panels In refrigeration devices such as refrigerators, freezers or the like is to improve their thermal insulation properties and thus to Lowering their energy consumption has shifted to that by foaming produced conventional thermal insulation material so-called vacuum insulation panels (see e.g. JP-A-06 194 030).
  • vacuum insulation panels include a diffusion protection film evacuable materials serving as support bodies such as for example Molded bodies pressed aerogels, silica or glass fibers, or from open cells organic polymer foams such as polyurethane foam, polyisocyanurate foam or polystyrene foam formed plate body.
  • a diffusion protection film evacuable materials serving as support bodies such as for example Molded bodies pressed aerogels, silica or glass fibers, or from open cells organic polymer foams such as polyurethane foam, polyisocyanurate foam or polystyrene foam formed plate body.
  • the invention has for its object to propose measures by which for housings according to the preamble of claim 1 using of thermal insulation material that cures with an exothermic reaction vacuum insulation panels with open-celled organic polymer foams formed support bodies while maintaining their heat insulating properties is possible.
  • the measure according to the invention opens up the possibility of not only vacuum insulation panels to be able to use their support materials due to their Material properties per se are suitable for the exothermic reaction to accept the heat released during the foaming process undamaged, but materials for support bodies can now also be considered, which be damaged by the heat released during the foaming process would, however, with regard to their own weight, their costs and also with regard to Their low thermal conductivity has clear advantages over the former own and therefore especially for the large alder production of housings Household refrigerators are suitable. Vacuum insulation panels can now be used with support bodies made of open-celled organic polymer foams, especially polystyrene foams are used.
  • Sealing is the vacuum-tight sealing of the diffusion protection film after the evacuation process of the inserted in the hood-like diffusion protection film Support body and the space delimited by the diffusion protection film understand.
  • the agents have a heat absorption capacity, which the heat generated when the thermal insulation material hardens at least as far as possible and thus to keep them away from the vacuum insulation panels can.
  • the manufacturing technology is particularly low Adequate protection of the vacuum insulation panels, especially for their supporting bodies, against those arising during the foaming process Heat provided.
  • the means are designed as non-metallic, board-like materials, the specific heat capacity c p is in the range between 1 and 2.5 kJ / kg K and the thermal conductivity ⁇ between 0.04 and 0.40 W / (m ⁇ K).
  • plate-like materials are material plates with a thin material thickness to understand.
  • the vacuum insulation panels or their supporting bodies are particularly simple but still protect effectively because the protective measure the board-like design is particularly simple; and exactly on the Foaming heat insulation material facing surfaces of the vacuum insulation panels can be positioned and at the same time a high insulation effect a small weight gain caused by the protective measures, results.
  • the agents are designed as sheet-like metallic materials , whose specific heat capacity c p is 0.4 to 1.0 kJ (kgK) and whose thermal conductivity ⁇ is between 0.15 and 220 W / (m ⁇ K).
  • the board-like materials on the vacuum insulation panel with at least largely preventing the heat conduction are fixed.
  • Solid-state boards are particularly inexpensive to manufacture protected vacuum insulation panels, if according to an alternative embodiment the object of the invention is provided that the board-like Materials arranged on the support body and sealed in the diffusion protection film are.
  • the support body from is particularly safe and quick and inexpensive to protect due to the exothermic reaction of the thermal insulation material heat released when according to another alternative embodiment the object of the invention is provided that the means as a film are formed, which the support body at least on its Thermal insulation material facing surfaces covered and that with the film covered support body is sealed in the diffusion protection film.
  • the vacuum insulation panels arranged on all sides within the heat insulation material, if according to a further preferred embodiment the object of the invention is provided that the board-like materials designed in the manner of a protective hood and over the vacuum insulation panel are put up.
  • non-metallic board-like materials formed from cross-linked solid-state boards are.
  • non-metallic board-like materials are particularly light acted upon if according to an alternative embodiment of the object the invention provides that the non-metallic board-like Materials are formed from foamable material, which in the foamed Condition has a closed-pore structure.
  • the vacuum insulation panels at least on their the thermal insulation material facing surfaces with a coating of frozen Isocyanate are equipped.
  • Such a measure has the effect that per se against the exothermic heat of reaction foaming sensitive support body materials a larger Amount of heat by increasing the temperature difference between the vacuum insulation panels and can absorb the waste heat from the foaming, without this waste heat causing changes in state or destruction could cause the support body materials.
  • the rapid manufacturing process of the heat-insulating housing Intermediate manufacturing step, namely the attachment of the metallic or non-metallic circuit board-like heat protection measures are eliminated.
  • the vacuum insulation panels are particularly easy to handle in the production process. if after a next alternative embodiment of the object the invention provides that the vacuum insulation panel of at least a protective cover is surrounded, which at least partially over air cushions is spaced from the diffusion protection film surrounding the support body
  • the heat-insulating housings for a household refrigerator can be particularly reliable produce if according to a last preferred embodiment the subject of the invention is provided that a household refrigerator such a refrigerator and / or freezer with a heat-insulating housing after one of claims 1 to 11 is equipped.
  • FIG. 1 and 2 is a simplified schematic representation for use heat-insulating housing suitable for a household refrigerator 10, within which a cooling space 11 is arranged.
  • This is from one inner lining 12 formed by non-cutting shaping of a plastic board lined, which on its back, facing away from the cold room 11 Outside with a thermally conductive contact with the back Evaporator 13 is provided.
  • the heat insulating Housing 10 on an outer panel 14, which as usual (however not shown in detail here) composed of several sections is of which the section forming its rear wall 15 is made of an aluminum-clad Cardboard box, the 16 side sections forming from chipless shaped sheet steel blanks and the one forming their ceiling 17 or bottom 18 Sections are made of plastic.
  • Thermal insulation material 19 such as polyurethane foam is provided, which due to its adhesive effect, the inner lining 12 and the outer lining 14 connects to a dimensionally stable structure and which under an exothermic Reaction foams and hardens.
  • the heat insulating housing 12 is on its side opposite the rear wall 15 with a pivotable stored heat-insulating door 20, through which the cold room 11 accessible is.
  • the door 20 has an outer panel 21 formed from sheet steel and a spaced-apart, non-cutting plastic inner lining 22, which with the outer panel 21 through the heat insulation material 19 into one rigid structure is connected.
  • both are heat-insulating Housing 10 in its two side walls and on its rear wall as also the door 20 with vacuum insulation panels arranged inside the heat insulation material 19 equipped, of which within the respective housing side wall and the vacuum insulation panel provided inside the door 20 23 is constructed in the same way.
  • the vacuum insulation panels 23, which is at least approximately the height and width of the door 20 and the side walls of the housing 10 are arranged, for example, of open-celled organic polymer foam, e.g. Polystyrene foam, manufactured cuboid support core 24, which in a diffusion-tight, for example with Aluminum-lined protective bag 25 is inserted, which after an evacuation is sealed vacuum-tight.
  • Outer surface of the protective bag 25 covering protective body on the Protective bag 25 with an at least largely prevents thermal conduction Glue is fixed.
  • the large area opposite the protective body 26 The outside of the protective bag 25 is used to attach the vacuum insulation panel 23 on the side walls 16 and on the outer panel 21, respectively the vacuum insulation panel 23 at least as far as possible in the fastening state covers the surface of the side walls 16 or the outer lining 21.
  • a vacuum insulation panel 27 similar to the vacuum insulation panel 23 is provided on the rear wall of the housing 10 containing the evaporator 13.
  • the vacuum insulation panel 27, like the vacuum insulation panel 23, has one made of open-cell polystyrene foam on support core 28, which on all sides surrounded by a protective bag 29 and this after the evacuation process is enclosed in a vacuum-tight manner.
  • Deviating from the vacuum insulation panel 23 indicates this essentially with regard to its contour to the contour of the rear wall of the housing 10 adapted vacuum insulation panel 27 on its two large surfaces Outside each cover the surface of the outside Protective body 30, which, like the protective body 26, is used by the exothermic reaction when foaming the heat insulation material 19 liberated To isolate heat from the vacuum insulation panel 27 and which based on an adhesive that prevents heat conduction on the outside the protective bag 29 is fixed.
  • the vacuum insulation panel 27 is not with one of its large outer sides on the inner panel 12 or on the Outer cladding 14 fixed, but approximately in the middle between the two positioned, and thus embedded on all sides in the heat insulation material 19.
  • the vacuum insulation panels 23 and 27 on their small outer surfaces also with the heat of the exothermic reaction of the foaming process Protective body be provided.
  • the vacuum insulation panel 26 a for example, by non-cutting shaping of a plastic board generated pocket-like protective body, the receiving space for Housing the vacuum insulation panel 27 is provided and its open Pocket side either through a separate protective body or through the The protrusion of the free edges of the pocket-like protective body is to be closed.

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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)
  • Packages (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Table Devices Or Equipment (AREA)
  • Thermally Insulated Containers For Foods (AREA)

Claims (14)

  1. Caisson thermiquement isolant pour l'entreposage de produits froids, avec une porte thermiquement isolante et des panneaux d'isolation sous vide qui présentent des corps de protection thermiquement isolants qui sont scellés dans une feuille de protection contre la diffusion et qui sont placés dans un matériau d'isolation thermique, créé par moussage, du caisson et/ou de la porte, caractérisé en ce que les panneaux d'isolation sous vide (23, 27) sont dotés très largement sur leurs surfaces tournées vers le matériau d'isolation sous vide (19) de moyens (26, 30) par lesquels les panneaux d'isolation sous vide (23, 27) sont très largement protégés de la chaleur dégagée lors du durcissement du matériau d'isolation thermique (19).
  2. Caisson thermiquement isolant selon la revendication 1, caractérisé en ce que les moyens (26, 30) possèdent une capacité d'absorption d'une quantité de chaleur qui absorbe très largement la chaleur dégagée lors du durcissement du matériau d'isolation thermique (19) et permet ainsi d'en protéger les panneaux d'isolation sous vide (23, 27).
  3. Caisson thermiquement isolant selon la revendication 1 ou 2, caractérisé en ce que les moyens sont configurés comme matériaux (26, 30) non métalliques en forme de plaque dont la capacité calorifique cp est comprise dans la plage de 1 à 2,5 kJ/(kg.K) et dont la conductivité thermique λ est comprise entre 0,04 et 0,40 W/(m.K).
  4. Caisson thermiquement isolant selon la revendication 1 ou 2, caractérisé en ce que les moyens sont configurés comme matériaux métalliques en forme de plaque dont la capacité calorifique c est comprise entre 0,4 et 1,0 kJ/(kg.K) et dont la conductivité thermique λ est comprise entre 0,15 et 220 W/(m.K).
  5. Caisson thermiquement isolant selon l'une des revendications 3 ou 4, caractérisé en ce que les matériaux (26, 30) en forme de plaque sont fixés sur le panneau d'isolation (23, 27) par des adhésifs qui empêchent très largement la conductivité thermique.
  6. Caisson thermiquement isolant selon l'une des revendications 3 ou 4, caractérisé en ce que les matériaux (26, 30) en forme de plaque sont disposés sur le corps de soutien (24) ou sont scellés dans la feuille (25) de protection contre la diffusion.
  7. Caisson thermiquement isolant selon l'une des revendications 1 ou 2, caractérisé en ce que les moyens sont configurés comme feuille qui recouvre le corps de soutien (24) au moins sur sa surface tournée vers le matériau d'isolation thermique (19) et en ce que le corps de soutien (24) recouvert par la feuille est scellé dans la feuille (25) de protection contre la diffusion.
  8. Caisson thermiquement isolant selon l'une des revendications 3 à 6, avec au moins un panneau d'isolation sous vide incorporé de tous côtés à l'intérieur de son matériau d'isolation thermique, caractérisé en ce que les matériaux (26, 30) en forme de plaque sont configurés en forme d'enveloppe de protection qui est rabattue sur le panneau d'isolation sous vide (30) ou le corps de soutien (24).
  9. Caisson thermiquement isolant selon l'une des revendications 3, 5, 6 ou 8, caractérisé en ce que les matériaux (26, 30) non métalliques en forme de plaque sont formés de plaques rigides réticulées.
  10. Caisson thermiquement isolant selon l'une des revendications 3, 5, 6 ou 8, caractérisé en ce que les matériaux (26, 30) non métalliques en forme de plaque sont formés d'un matériau moussable qui présente une structure à pores fermés après avoir été moussé.
  11. Caisson thermiquement isolant selon la revendication 1, caractérisé en ce que les panneaux d'isolation sous vide (23, 27) sont équipés d'un revêtement d'isocyanate gelé.
  12. Caisson thermiquement isolant selon la revendication 1, caractérisé en ce que l'énergie du système de phonons des panneaux d'isolation sous vide (23, 27) a une valeur réduite à température ambiante.
  13. Caisson thermiquement isolant selon la revendication 1, caractérisé en ce que le panneau d'isolation sous vide (23, 27) est entouré par au moins une enveloppe de protection qui est située au moins en partie à distance de la feuille (25, 29) de protection contre la diffusion qui entoure le corps de soutien (24, 28), par l'intermédiaire de coussins d'air.
  14. Appareil de réfrigération, par exemple réfrigérateur et/ou congélateur, caractérisé par un caisson thermiquement isolant (10) selon l'une des revendications 1 à 13.
EP99120955A 1998-11-10 1999-11-03 Caisse isolée thermiquement Expired - Lifetime EP1001233B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19851838 1998-11-10
DE19851838A DE19851838A1 (de) 1998-11-10 1998-11-10 Wärmeisolierendes Gehäuse

Publications (3)

Publication Number Publication Date
EP1001233A2 EP1001233A2 (fr) 2000-05-17
EP1001233A3 EP1001233A3 (fr) 2000-09-13
EP1001233B1 true EP1001233B1 (fr) 2003-08-06

Family

ID=7887325

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99120955A Expired - Lifetime EP1001233B1 (fr) 1998-11-10 1999-11-03 Caisse isolée thermiquement

Country Status (5)

Country Link
EP (1) EP1001233B1 (fr)
AT (1) ATE246788T1 (fr)
DE (2) DE19851838A1 (fr)
DK (1) DK1001233T3 (fr)
ES (1) ES2205671T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1400770B1 (fr) * 2001-06-04 2009-10-07 Panasonic Corporation Corps de caisson isole, refrigerateur comprenant le corps de caisson et procede de recyclage des materiaux utilises pour le corps de caisson isole
FR2835216B1 (fr) * 2002-01-28 2004-04-02 Usinor Structure composite a parement de rigidite elevee, de tres faible epaisseur et integrant un super isolant sous vide
DE202009001784U1 (de) * 2009-02-12 2009-04-16 Gebhardt Transport- Und Lagersysteme Gmbh Kühltransportbehälter
DE102011075388A1 (de) * 2011-05-06 2012-11-08 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät, insbesondere Haushaltskältegerät

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5082335A (en) * 1989-12-18 1992-01-21 Whirlpool Corporation Vacuum insulation system for insulating refrigeration cabinets
JPH06194030A (ja) * 1992-12-25 1994-07-15 Matsushita Refrig Co Ltd 断熱箱体
DE19648305A1 (de) * 1996-11-21 1998-05-28 Bosch Siemens Hausgeraete Wärmeisolierende Wandung

Also Published As

Publication number Publication date
DE59906490D1 (de) 2003-09-11
DE19851838A1 (de) 2000-05-11
DK1001233T3 (da) 2003-11-24
EP1001233A2 (fr) 2000-05-17
EP1001233A3 (fr) 2000-09-13
ES2205671T3 (es) 2004-05-01
ATE246788T1 (de) 2003-08-15

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