WO2012152648A2 - Appareil de froid, en particulier appareil de froid domestique - Google Patents

Appareil de froid, en particulier appareil de froid domestique Download PDF

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Publication number
WO2012152648A2
WO2012152648A2 PCT/EP2012/058113 EP2012058113W WO2012152648A2 WO 2012152648 A2 WO2012152648 A2 WO 2012152648A2 EP 2012058113 W EP2012058113 W EP 2012058113W WO 2012152648 A2 WO2012152648 A2 WO 2012152648A2
Authority
WO
WIPO (PCT)
Prior art keywords
insulation panel
vacuum insulation
liquid adhesive
boundary wall
insulating layer
Prior art date
Application number
PCT/EP2012/058113
Other languages
German (de)
English (en)
Other versions
WO2012152648A3 (fr
Inventor
Heiko Wendland
Martin Zimmermann
Original Assignee
BSH Bosch und Siemens Hausgeräte 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 Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Publication of WO2012152648A2 publication Critical patent/WO2012152648A2/fr
Publication of WO2012152648A3 publication Critical patent/WO2012152648A3/fr

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
    • F25D23/06—Walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/06—Arrangements using an air layer or vacuum
    • F16L59/065—Arrangements using an air layer or vacuum using vacuum
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • Refrigerating appliance in particular household refrigerating appliance
  • the invention relates to a refrigerator according to the preamble of claim 1 and a method for producing such a refrigerator according to claim 7.
  • vacuum insulation panels can be arranged in the foamed insulation layer between the device outer walls and the inner container defining the cooling space.
  • a vacuum insulation panel can be pre-positioned on the outside of the device by means of an adhesive tape. Subsequently, the vacuum insulation panel can be firmly integrated into the insulating layer during the insulating foaming.
  • a generic refrigeration device is known, the housing and / or appliance door each having inner and outer boundary walls and a heat insulating layer between them produced by foaming.
  • the vacuum insulation panel is introduced into the heat insulating layer in a pre-foaming step.
  • the outer housing wall is inserted into a mold.
  • a liquid starting component of a foamable liquid adhesive is then applied, onto which the vacuum insulation panel is laid loosely. The launched on the liquid adhesive
  • Vakuumisolationspaneel is bordered by a likewise lying on the mold mold frame. Subsequently, the top of the mold frame is closed foam-tight with a cover plate until the liquid adhesive is foamed and cured under pressure.
  • Bonding results, the demolding of the prefoamed composite body consisting of the housing outer wall and the vacuum insulation panel,
  • the interface of the foamed liquid adhesive which bears against the mold frame, has a flat, flat surface
  • the interface runs continuously parallel to the edge the Vakuumisolationspaneels and is brought into the subsequent IsolierJum-step cohesively in bonding with the surrounding heat insulating layer.
  • the object of the invention is to provide a refrigeration appliance, in particular domestic refrigeration appliance, as well as a process for its production, which have a production-technically simple assembly of the refrigeration appliance as well as a high degree of safety
  • Bonding strength between the liquid adhesive and the heat insulating layer allows.
  • the invention relates to a refrigeration device having a housing defining the cooling space and a door of the appliance.
  • the housing and / or the door can each inner and outer boundary walls and one between them, generated by foaming
  • a vacuum insulation panel is inserted.
  • One of the two boundary walls can be joined together with the vacuum insulation panel to a composite body or to a pre-assembly.
  • the liquid adhesive can first be foamed and cured in a first pre-foaming step upstream of the insulating foam in order to provide the abovementioned composite body.
  • the invention is based on the fact that at a flat, level interface between the
  • Bonding is enabled in order to achieve a total bond integrity in the material structure of the door or the refrigerator housing.
  • Liquid adhesive can be brought, whereby the bond strength in the material structure of the housing or the door can be increased. Instead of a
  • Vacuum insulation panel can also be used any other insulating.
  • 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, a freezer or a wine storage cabinet.
  • the liquid adhesive and also the heat insulating layer may be a polyurethane foam having pentane as the blowing agent.
  • the liquid adhesive can be applied punctiform, linear or in any desired free form to carry out the pre-foaming step.
  • the flow cross-section of the liquid adhesive can be varied in the region of the peripheral edge of the vacuum insulation panel in order to achieve such an irregularly designed interface of the liquid adhesive.
  • the area offset from the edge of the vacuum insulation panel on the other hand, the
  • Liquid adhesive have a constant flow cross-section.
  • the liquid adhesive may preferably be a tack-optimized foam, which may have a reduced viscosity compared to the thermal insulating layer.
  • the liquid adhesive can be a polyurethane foam which has water as an additional blowing agent.
  • the heat insulating layer can be optimized for insulation
  • Polyurethane foam having pentane as an additional propellant having pentane as an additional propellant.
  • the first boundary wall and the vacuum insulation panel can be joined together with the liquid adhesive to form a solid component composite.
  • the component composite can be fed to a foaming system, in which the still liquid starting component of the heat insulating layer between the inner and in an insulating foam step outer boundary walls introduced, foamed and cured.
  • the vacuum insulation panel may be spaced from the first boundary wall by a predetermined layer thickness.
  • Vakuumisolationspaneel and the first boundary wall can also have a
  • Refrigeration appliance component in particular a condenser, be arranged.
  • Refrigeration appliance component can be completely integrated in the foamed liquid adhesive.
  • the condenser is part of a known per se
  • the condenser is preferably in contact with the inside of the housing outer wall in order to achieve a favorable heat coupling.
  • the vacuum insulation panel is arranged between the condenser and the cooling space.
  • the pre-foaming step firstly the vacuum insulation panel and the boundary wall can be positioned at a predetermined gap distance away from one another in a molding tool. In the space between the vacuum insulation panel and the boundary wall is the liquid
  • Liquid adhesive is therefore - in contrast to the subsequent IsolierCum step - largely without pressure build-up. In this way, the frothy
  • Liquid adhesive in free flow fill the gap and flow into the area of the edge of the vacuum insulation panel.
  • the foaming liquid adhesive can therefore run dead on the edge of the vacuum insulation panel due to the lack of lateral boundary to the formation of material bulges and indentations. Accordingly, the flow cross section of the liquid adhesive can vary freely in the region of the peripheral edge of the vacuum insulation panel.
  • Entformungsvorgang perform easily, without mechanically separating the cured liquid adhesive from a mold frame of the mold.
  • Fig. 1 in a perspective view of a refrigeration device with a, in a
  • FIG. 2 shows a sectional view along the sectional plane I-I from FIG. 1;
  • FIGS. 3 to 5 are views illustrating a method of manufacturing the refrigerator housing; and FIG. 6 is a perspective sectional view of a housing side wall with partially omitted inner boundary wall and partially omitted insulating layer.
  • a refrigeration device with a, a refrigerator 1-defining housing 3 and a laterally hinged appliance door 5 is shown.
  • the refrigeration device housing 3 has a plastic inner container 7 and device outer walls 9, between each of which one, produced by foaming Winnipegisolier Mrs 1 1 is introduced.
  • the door 5 is constructed to be heat-insulating, each having an inner lining and an outer lining with intermediate heat insulation. has lier Mrs.
  • a condenser 13 is provided, the meandering running condenser pipe between the inner container 7 and the device outer wall 9 is foamed.
  • the condenser 13 together with other components of a known refrigerant circuit and causes in the cooling mode, heat dissipation to the environment.
  • the structure of the side wall of the housing 3 is shown in a sectional view. Accordingly, the condenser pipe 13 is directly in contact with the inside 15 of the device outer wall 9.
  • a vacuum insulation panel 17 is provided, which is arranged plane-parallel between the device outer wall 9 and the inner side wall of the inner container 7. The vacuum insulation panel 17 is used for thermal decoupling of the condenser 13 from the cooling space 1. The vacuum insulation panel 17 is also spaced over a further layer thickness d 2 of the side wall of the inner container 7.
  • the liquid adhesive 19 is in a materially adhesive bond with the surrounding area at its edge-side interface 20
  • Heat insulating layer 1 1.
  • the contour of the boundary surface 20 of the liquid adhesive 19 is shown in the partial sectional view of FIG. 6. As a result, the
  • Boundary surface 20 along the peripheral edge 33 of the heat insulation panel 17 irregular with mutual bulges material 22 and Materialeinfact 24. These are with respect to the peripheral edge 33 of the vacuum insulation panel 17 in the lateral direction reset by the peripheral edge 33 and project beyond this. This results in pocket-like recesses, which are filled during the insulating foaming with the heat insulating layer 1 1.
  • the heat insulating layer 1 1 is therefore at least partially brought into a positive connection with the material bulges / indentations 22, 24 of the interface 20 in addition to the already mentioned adhesive connection, whereby the composite stiffness of the shown in FIG. 6 material construction of the housing wall is increased.
  • the condenser pipe is prepositioned by means of adhesive tapes 35 on the inside 15 of the housing wall 9 and a liquid starting component of the liquid adhesive 19 applied to the condenser pipe 13 and the inside 15.
  • a hold-down 27 is positioned according to the Fig. 3 and 4, which is spaced over a height h (Fig. 4) from the housing outer wall 9.
  • a still free gap 25 is defined which is filled by the foaming and hardening liquid adhesive 19 during the prefoaming step II (FIG. 4).
  • the vacuum insulation panel 17 is pushed up against the bottom 23 of the hold-down 27, whereby the vacuum insulation panel 17 is positionally stabilized.
  • the amount of liquid adhesive 19 and its distribution on the inside 15 of the housing outer wall 9 is such that the liquid adhesive 19 in a central region 32 (FIG. 4) of the vacuum insulation panel 17 with a constant
  • the composite body 21 is subsequently to prepare an insulating foam step III (FIG. 5) in one
  • Vacuum insulation panel 17 is already in the correct position in FIG. 5 with a predefined distance to the inner container 7, which corresponds to the layer thickness d 2 positioned.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Refrigerator Housings (AREA)

Abstract

L'invention concerne un appareil de froid, en particulier un appareil de froid domestique, comprenant une caisse (3) délimitant un compartiment de réfrigération (1) et une porte d'appareil (5), qui présentent respectivement des parois de délimitation intérieure et extérieure (7, 9) ainsi qu'une couche thermo-isolante (11) produite par expansion entre ces dernières, dans laquelle est introduit un élément d'isolation, notamment un panneau isolant sous vide (17), qui est fixé sur une paroi de délimitation (9) au moyen d'un adhésif liquide expansible (19) présentant une surface limite (20) pouvant être mise en contact avec la couche thermo-isolante (11). Selon l'invention, la surface limite (20) de l'adhésif liquide (19) présente un contour irrégulier possédant des zones de matière convexes (22) et des zones de matière concaves (24), en particulier par rapport à une arête de bord (33) du panneau isolant sous vide (17).
PCT/EP2012/058113 2011-05-06 2012-05-03 Appareil de froid, en particulier appareil de froid domestique WO2012152648A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011075389.3 2011-05-06
DE102011075389A DE102011075389A1 (de) 2011-05-06 2011-05-06 Kältegerät, insbesondere Haushaltskältegerät

Publications (2)

Publication Number Publication Date
WO2012152648A2 true WO2012152648A2 (fr) 2012-11-15
WO2012152648A3 WO2012152648A3 (fr) 2013-05-02

Family

ID=46197233

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/058113 WO2012152648A2 (fr) 2011-05-06 2012-05-03 Appareil de froid, en particulier appareil de froid domestique

Country Status (2)

Country Link
DE (1) DE102011075389A1 (fr)
WO (1) WO2012152648A2 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008026528A1 (de) 2008-06-03 2009-12-10 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät, insbesondere Kältegerät, sowie Verfahren zum Herstellen eines Verbundkörpers und Vorschäumform zur Durchführung des Verfahrens

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58106374A (ja) * 1981-12-18 1983-06-24 松下冷機株式会社 断熱箱のパネル
JPS63220075A (ja) * 1987-03-09 1988-09-13 松下冷機株式会社 断熱箱体

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008026528A1 (de) 2008-06-03 2009-12-10 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät, insbesondere Kältegerät, sowie Verfahren zum Herstellen eines Verbundkörpers und Vorschäumform zur Durchführung des Verfahrens

Also Published As

Publication number Publication date
DE102011075389A1 (de) 2012-11-08
WO2012152648A3 (fr) 2013-05-02

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