EP0857928B1 - Enceinte isolée thermiquement - Google Patents

Enceinte isolée thermiquement Download PDF

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Publication number
EP0857928B1
EP0857928B1 EP98100744A EP98100744A EP0857928B1 EP 0857928 B1 EP0857928 B1 EP 0857928B1 EP 98100744 A EP98100744 A EP 98100744A EP 98100744 A EP98100744 A EP 98100744A EP 0857928 B1 EP0857928 B1 EP 0857928B1
Authority
EP
European Patent Office
Prior art keywords
channel system
thermally insulating
insulating housing
housing according
thermal insulation
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
EP98100744A
Other languages
German (de)
English (en)
Other versions
EP0857928A1 (fr
Inventor
Udo Dr.Dipl.-Phys. Wenning
Wolfram Dr. Dipl.-Chem. Wacker
Hans-Frieder Dipl.-Phys. 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
Priority to SI9830466T priority Critical patent/SI0857928T1/xx
Publication of EP0857928A1 publication Critical patent/EP0857928A1/fr
Application granted granted Critical
Publication of EP0857928B1 publication Critical patent/EP0857928B1/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 housing for a thermally insulating Utility room arranged in a device such as a household refrigerator or freezer, a household oven or the like, with a housing outer wall, one of them spaced housing inner wall, which together form a gap enclose, which is evacuated at least via a connection point and which with an evacuable thermal insulation material for supporting the gap enclosing walls is filled, wherein within the space at least one partially provided within the heat insulating material extending channel system is, which traverses the gap at least largely as far as possible and which is fluidically connected to an evacuation nozzle.
  • thermo-insulating based on vacuum insulation technology Enclosures to be evacuated for the purpose of isolation, from the Housing outer walls hermetically enclosed spaces with To fill heat insulation material. This serves in addition to an additional heat insulation especially on top of that, the shell to be evacuated shell-like enclosing Housing walls against the due to the pressure drop within the cavity itself support resulting pressure difference to the outside atmosphere. That for support introduced thermal insulation material, however, entails that for the production a vacuum sufficient for thermal insulation evacuation required are significantly increased.
  • heat-insulating housings To reduce the evacuation times when using vacuum insulation technology heat-insulating housings is from DE 3940649A1 a heat insulating trained housing known between the Gezzauseinnen- and Housing outer walls designed as a molded heat insulating material is introduced. This is to reduce the suction resistance and thus to Reduction of pumping time during the evacuation process with grooved Wells equipped, the fluidic to an evacuation nozzle are connected.
  • the arrangement of the Evakuierstutzens is directly one of associated groove-like suction channels.
  • the invention is based on the object, in a housing according to the preamble of claim 1 to propose measures on the basis of which in a simple way the Disadvantages of the prior art are avoided.
  • the invention causes Introduction of a sewer or piping system in the evacuated Gap through the significant shortening of the evacuation a targeted, largely unimpeded air discharge and thus pressure reduction of the Heat insulation material filled gap.
  • the evacuation tube ends of the Channel system.
  • the evacuation can be in terms of his Make dimensions very small and unobtrusive. At the same time this results also a significant simplification of the fluidic connection to the Evacuation nozzle, so that potential leakages and resulting Leakage losses are drastically reduced.
  • a collection point for evakuierstutzen discourseen ends of Channel system formed when, according to a next advantageous embodiment of the Object of the invention is provided that the evacuation in the center of the Atrium-trained collection point is arranged.
  • Particularly effective and time-saving can be an evacuation process with a thermal insulation material perform filled gap of a heat-insulating housing, if according to a next preferred embodiment of the subject of the Invention is provided, that the channel system composed of individual channels and at least partially incorporated in the thermal insulation material.
  • the heat insulation material of open-cell, plate-shaped Foamed materials is formed, in which the channel system of individual channels assembled and machined is introduced.
  • the heat insulating material formed of plate-shaped glass fiber materials is, in which the channel system is formed.
  • Such a design of the glass fiber mats is unnecessary for the purpose of a drastically reducing the evacuation time adding additional, within the too evacuating gap due to production still consuming to be introduced spacer between the glass fiber mats. Due to the surface enlargement of the Glass fiber mats of the edge-open air ducts formed therein without cutting produce a result wrinkle-free installation of thin-walled housing interior and exterior exterior wall of the Surface of the thermal insulation material.
  • the heat insulating material is formed as evacuated bulk material is, within which a prefabricated composed of pipelines Channel system is embedded.
  • a particularly significant reduction in evacuation time due to a particularly strong Shortening of the Evakuierwege results when, according to another preferred embodiment the subject of the invention is provided that from piping joined duct system over at least part of its length and its cable circumference is provided with openings.
  • FIG. 1 is a household refrigerator 10 with a heat-insulating housing 11, which has a thin-walled foil-like metal outer shell 12 and a spaced apart, lining the interior of the housing 11 Metal interior trim 13 of the same material thickness is formed. This is at her free Edges with the free edges of the metal outer shell 12 via a connecting frame 14 vacuum-tight, whereby between the metal outer shell 12th and the metal inner panel 13 a hermetically sealed vacuum-tight Interspace 15 is formed.
  • open-cell thermal insulation material 16th filled which for example made of open-cell polyurethane foam or Polyisocyanurate foam, polystyrene foam or other open cell Polymer foam is formed and which is formed into plate bodies, of which one as Deckenisolier emotions 17, one as gearwandisolier emotions 18, another as Bodenisolier emotions 19 serves as two mirror-inverted insulation as Sidewall insulating 20 are provided.
  • the insulating body 17 to 20 are in terms their plate thickness on the distance between the metal outer shell 12 and the Metal interior trim 13 matched and in terms of their body area and Body geometry to the surface and geometry of the corresponding housing wall customized.
  • the insulating body for the individual wall sections of the heat-insulating Housing 11 are on their metal inner panel 13 facing side with machining processes such as milling, sawing or the like, for Metal interior trim 13 out towards open-edge channels 21 provided.
  • the channels 21 are approximately the same Spaces across the insulating body 17 to 20 arranged and over the Rear wall insulating 18 connected to a continuous channel system.
  • the channels 21 are net-like applied to the rear wall insulating body 18, wherein the free ends of the net-like channels 21 on the back wall insulating body 18 as Connected pads 22 adjacent to the remindwandisolier emotions 18 further insulating 17, 19 and 20 serve.
  • the net-like channels 21 am remindwandisolier emotions 18 are formed in an atrium 23, ring-like assembled collection center, in the center of which on the outside of the Rear wall portion of the metal outer shell 12 provided Evakuierstutzen 24th opens, which as a central connection point for a not shown evacuation pump for Evacuation of the gap 15 is used.
  • Evakuierstutzen 24th opens, which as a central connection point for a not shown evacuation pump for Evacuation of the gap 15 is used.
  • the evacuation nozzle 24 provided rear wall portion of the heat-insulating housing 11 is this with a tarnished as well as thermally insulating formed over a circumferentially arranged magnetic seal 25 on the housing edge elastically resting door 26 provided.
  • the heat-insulating housing 11 made of a thin-walled metallic cladding 27 (e.g., stainless steel) which hermetically seals Interspace 28 encloses, which with serving for heat insulation of the door 26 plate-shaped insulating material 29 on the basis of the heat insulation of the Housing 11 serving thermal insulation material 16 is completely filled.
  • the plate-shaped heat insulating material 29 for heat insulation of the door 26 is like the at the heat-insulating housing 11 for use coming insulator with by machined shaping channels 30 covered in a network-like manner, which, like the channels 21 provided on the rear wall insulating body 18, are not in one merged collection point and fluidly with a not are shown connected Evakuierstutzen.
  • the housing 11 can also be used glass fiber mats, which like the foamed plate body are provided with channels, their arrangement and Embodiment which corresponds to the plate-shaped insulating body.
  • heat insulation of the housing 11 instead of the plate-shaped insulating materials heat-insulating, 15 or 28 constantly to be compacted bulk material such as diatomaceous earth or aerogels during the filling process of the gap, the latter having a density of 80 to 120 kg / m 3 and a surface of 7 x 10 5 m 2 / kg should have.
  • this bulk material channels which as shown in Fig.
  • the conduits 35 are like the channels 21 merged into a collection point and formed in the region of the rear wall of the housing to produce the net-like structure of short interconnected pipe sections.
  • the pipes 35 are provided for the purpose of improved air flow at its pipe wall 36 with approximately uniformly over its Wandungshunt and over its wall length arranged openings 37.
  • the pipes 35 in the individual housing wall sections of the heat-insulating housing 11 are connected at their interface to the provided in the rear wall of the housing 11 reticulated pipe assembly with elastic or correspondingly shaped connecting elements to a contiguous duct or piping system, which centrally via an opening in the collection evacuation nozzle is sucked.
  • the openings 37 in the pipe walls 36 are dimensioned so that the cross section is smaller than the cross section of the bulk material.
  • these are manufactured as prefabricated units made of different metals or of plastics with low diffusion and prior to filling the housing 11 or the door 26 with the formed as bulk heat insulating material in the intermediate space 15 and 28 respectively are inserted and then evacuation time optimized positioned. Furthermore, it is conceivable that in order to compensate for diffusion processes within the intermediate spaces 15 or 28 getter materials are inserted to compensate for the diffusion processes.

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)
  • Thermal Insulation (AREA)
  • Refrigerator Housings (AREA)

Claims (9)

  1. Enceinte thermiquement isolante (11, 26) pour un espace utile thermiquement isolant disposé dans un appareil tel qu'un réfrigérateur ou un surgélateur domestique (10), un four de cuisson domestique ou similaires, comprenant une paroi extérieure d'enceinte (12, 27), une paroi intérieure d'enceinte (13, 27) située à distance de celle-ci, lesquelles parois enferment ensemble un espace intermédiaire (15, 28) qui peut être placé sous vide par au moins un emplacement de raccordement (24) et qui est rempli d'un matériau thermiquement isolant (16, 29) apte à être placé sous vide pour soutenir les parois (12, 13; 27) qui enferment l'espace intermédiaire (15, 28), un système de canaux, s'étendant dans l'espace intermédiaire (15, 28) au moins en partie à l'intérieur du matériau thermiquement isolant (16, 29), étant prévu, le système de canaux traversant l'espace intermédiaire (15, 28) de manière à recouvrir au moins très largement sa surface et étant relié à écoulement à une tubulure de mise sous vide (24), caractérisée en ce que pour relier à écoulement le système de canaux à la tubulure de mise sous vide (24), il est prévu au moins un emplacement de collecte de forme annulaire et configuré comme sas d'entrée (23) qui entoure la tubulure de mise sous vide (24) en anneau.
  2. Enceinte thermiquement isolante selon la revendication 1, caractérisée en ce que les extrémités, du côté tubulure de mise sous vide, du système de canaux constitués de l'assemblage des canaux (12, 30) débouchent dans l'emplacement de collecte qui sert à relier à écoulement le système de canaux à la tubulure de mise sous vide (24).
  3. Enceinte thermiquement isolante selon la revendication 2, caractérisée en ce que la tubulure de mise sous vide (24) est disposée au centre de l'emplacement de collecte configuré comme sas d'entrée (23).
  4. Enceinte thermiquement isolante selon la revendication 1 ou 2, caractérisée en ce que le système de canaux est constitué de canaux individuels (21) et est installé au moins en partie dans le matériau thermiquement isolant (16, 29).
  5. Enceinte thermiquement isolante selon l'une des revendications 1 ou 4, caractérisée en ce que le matériau thermiquement isolant (16, 29) est formé d'un matériau en mousse à cellules ouvertes, en forme de plaque, dans lequel le système de canaux est ménagé par enlèvement de matière.
  6. Enceinte thermiquement isolante selon les revendications 1 ou 4, caractérisée en ce que le matériau thermiquement isolant est formé de mats de fibres de verre dans lesquels le système de canaux est ménagé.
  7. Enceinte thermiquement isolante selon la revendication 1 ou 4, caractérisée en ce que le matériau thermiquement isolant est configuré comme matériau en vrac apte à être placé sous vide et à l'intérieur duquel est incorporé un système de canaux préfabriqué constitué d'assemblage de conduits tubulaires (35).
  8. Enceinte thermiquement isolante selon la revendication 7, caractérisée en ce que le système de canaux constitué de l'assemblage de conduits tubulaires (35) est doté de percements (37) au moins sur une partie de la longueur des conduits et de la périphérie des conduits.
  9. Enceinte thermiquement isolante selon la revendication 1, caractérisée en ce que la paroi extérieure (12) de l'enceinte et la paroi intérieure (13) de l'enceinte située à distance de celle-ci sont formées d'un métal en feuille mince.
EP98100744A 1997-02-07 1998-01-16 Enceinte isolée thermiquement Expired - Lifetime EP0857928B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9830466T SI0857928T1 (en) 1997-02-07 1998-01-16 Heat insulated housing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19704699 1997-02-07
DE19704699A DE19704699A1 (de) 1997-02-07 1997-02-07 Wärmeisolierendes Gehäuse

Publications (2)

Publication Number Publication Date
EP0857928A1 EP0857928A1 (fr) 1998-08-12
EP0857928B1 true EP0857928B1 (fr) 2003-04-16

Family

ID=7819622

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98100744A Expired - Lifetime EP0857928B1 (fr) 1997-02-07 1998-01-16 Enceinte isolée thermiquement

Country Status (5)

Country Link
EP (1) EP0857928B1 (fr)
DE (2) DE19704699A1 (fr)
ES (1) ES2196405T3 (fr)
SI (1) SI0857928T1 (fr)
TR (1) TR199800181A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008024713A1 (de) * 2008-05-22 2009-12-03 Carl Zeiss Industrielle Messtechnik Gmbh Verkleidung für eine Maschine, insbesondere für ein Koordinatenmessgerät

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVA20020011A1 (it) * 2002-02-07 2003-08-07 Whirlpool Co Frigorifero domestico e procedimento per la sua realizzazione
AU2003228203A1 (en) * 2002-03-25 2003-10-08 Arcelik A.S. An insulated unit and production method thereof
CN1777470A (zh) 2003-05-02 2006-05-24 库诺公司 带有速干更换元件的交叉流过滤系统
DE10355137A1 (de) * 2003-11-26 2005-06-23 BSH Bosch und Siemens Hausgeräte GmbH Kältegerätegehäuse
DE102006057663A1 (de) * 2006-12-07 2008-06-12 Bayerische Motoren Werke Ag Wärmeisolationsschichtanordnung und Gaslanze,Isolationsvorrichtung und Verfahren zum Evakuieren und/oder Begasen der Wärmeisolationsschichtanordnung
US11029080B2 (en) 2017-01-18 2021-06-08 Whirlpool Corporation Use of rigid or permeable conduits for achieving faster vacuum evacuation time in vacuum insulated structures
EP3571453B1 (fr) * 2017-01-18 2023-05-24 Whirlpool Corporation Utilisation sur des tubes d'en bord pour obtenir un temps d'évacuation de vide plus rapide dans des structures isolées sous vide
US11085690B2 (en) 2017-01-18 2021-08-10 Whirlpool Corporation Increased vacuum port area for achieving faster vacuum evacuation time in vacuum insulated structures
US10746343B2 (en) 2018-09-28 2020-08-18 Whirlpool Corporation Channel system for a vacuum insulated structure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB730114A (en) * 1952-10-23 1955-05-18 Gen Electric Improvements in and relating to thermal insulation
DE3940649A1 (de) * 1989-12-08 1991-06-13 Asea Brown Boveri Waermeisolationseinrichtung
SE470464B (sv) * 1992-09-10 1994-04-18 Electrolux Res & Innovation Isolering för kyl- eller frysskåp
DE19528128A1 (de) * 1995-08-01 1997-02-06 Hoesch Siegerlandwerke Gmbh Sandwich-Bauelemente zum Erstellen von wärmedämmenden und lastabtragenden Wänden, Dächern und Böden

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008024713A1 (de) * 2008-05-22 2009-12-03 Carl Zeiss Industrielle Messtechnik Gmbh Verkleidung für eine Maschine, insbesondere für ein Koordinatenmessgerät

Also Published As

Publication number Publication date
DE19704699A1 (de) 1998-08-13
TR199800181A2 (xx) 1998-08-21
EP0857928A1 (fr) 1998-08-12
ES2196405T3 (es) 2003-12-16
TR199800181A3 (tr) 1998-08-21
SI0857928T1 (en) 2003-12-31
DE59807911D1 (de) 2003-05-22

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