WO2020002452A1 - Appareil réfrigérateur et/ou de congélation comprenant une couche de séparation réfractaire - Google Patents

Appareil réfrigérateur et/ou de congélation comprenant une couche de séparation réfractaire Download PDF

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Publication number
WO2020002452A1
WO2020002452A1 PCT/EP2019/067043 EP2019067043W WO2020002452A1 WO 2020002452 A1 WO2020002452 A1 WO 2020002452A1 EP 2019067043 W EP2019067043 W EP 2019067043W WO 2020002452 A1 WO2020002452 A1 WO 2020002452A1
Authority
WO
WIPO (PCT)
Prior art keywords
machine room
refrigerator
separating layer
outer skin
freezer according
Prior art date
Application number
PCT/EP2019/067043
Other languages
German (de)
English (en)
Inventor
Atanas KUZEV
Hristo PLATNAROV
Original Assignee
Liebherr-Hausgeräte Marica 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 Liebherr-Hausgeräte Marica Gmbh filed Critical Liebherr-Hausgeräte Marica Gmbh
Publication of WO2020002452A1 publication Critical patent/WO2020002452A1/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
    • F25D23/065—Details
    • 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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/006—Safety devices
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/12—Inflammable refrigerants
    • 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
    • F25D23/006—General constructional features for mounting refrigerating machinery components

Definitions

  • the invention relates to a refrigerator and / or freezer with a body which comprises a usable space surrounded by thermal insulation and a machine room arranged on the outside of the thermal insulation, at least one electrical device being located in the machine room.
  • Refrigerators and / or freezers typically have a machine room in which electrical devices such as the compressor of a refrigerant circuit are arranged.
  • the machine room is often located in the rear base area of the device and in any case on the outside of the thermal insulation layer that surrounds the usable space of the device.
  • the machine room is often separated from the insulation material of the thermal insulation layer by a plastic floor.
  • this has the disadvantage that fire can spread into the thermal insulation layer in the event of a flame development in the machine room due to malfunction.
  • the object of the invention is to provide a refrigerator and / or freezer in which the machine room is separated from the heat insulation layer in such a way that flame propagation is more effectively avoided.
  • the invention relates to a refrigerator and / or freezer with a body that comprises a usable space surrounded by thermal insulation and a machine room arranged on the outside of the thermal insulation, at least one electrical device being located in the machine room, and between which Machine room and the thermal insulation a fire-proof separation layer is arranged over the entire surface.
  • the machine room is thus completely separated from the thermal insulation by a fire-resistant separating layer.
  • the fire-resistant separating layer means that the insulation material cannot be ignited by flames from the machine room.
  • the refractory separating layer preferably adjoins the machine room directly, that is to say without intermediate surface layers.
  • the refractory separating layer can be a metal sheet.
  • Metal sheets are fire-proof in any case and also have the advantage of good thermal conductivity, so that a flame-related local heat input is distributed over the surface of the sheet.
  • the materials are also inexpensive and easy to process.
  • the device has a heat pump, by means of which the usable space can be cooled.
  • the heat pump is preferably a refrigerant circuit with a compressor, condenser, throttle and evaporator.
  • the electrical device of the machine room can be the compressor of a refrigerant circuit.
  • magnetocaloric heat pumps and / or thermoelectric heat pumps can also be used.
  • the device body preferably has a cuboid shape.
  • a chest-shaped variant can also be provided, the removal opening itself the top of the device and is closed by a hinged or sliding lid.
  • the machine room can be arranged in the base area of the device. It is therefore below the usable space and the refractory separating layer is a component of the machine room ceiling.
  • the machine room ceiling preferably further comprises an inner device container directly adjacent to the usable space and a thermal insulation material enclosed between the refractory separating layer and the inner device container.
  • the machine room is preferably arranged in the rear base area of the device. The machine room ceiling and therefore the fire-resistant separating layer as part of this machine room ceiling can rise in one or more steps from the device floor to the device rear wall.
  • the machine room and the refractory separating layer can extend over the entire width of the device.
  • the device body has an outer skin and an inner container, which enclose the thermal insulation layer between them.
  • the inner container can be an inner container made of a plastic, in particular a plastic board. Such an inner container is usually manufactured by deep drawing.
  • the insulation material can be, for example, a heat insulation foam, a fiber material or a vacuum insulation body.
  • the outer skin is preferably a metal sheet.
  • the body of the device comprises an outer skin and that the refractory separating layer lies with its preferably entire side edge on the inner surface of the outer skin. There are therefore no other components between the outer skin and the separating layer which could impair the flame retardant properties of the construction. Only a sealing tape can be on the border between the refractory separating layer and the outer Outer skin may be provided, preferably over the entire extent of the border.
  • the sealing tape is preferably made of a refractory material.
  • the side edge of the refractory separating layer that lies against the outer skin can be bent in sections or completely into a U-shaped contour, preferably in the direction of the machine room.
  • the section of this contour which is at right angles to the main surface of the refractory separating layer forms a support surface for the inner surface of the outer skin.
  • a sealing tape can be attached to this contact surface, for example glued on.
  • a connecting part is accommodated in the machine room, which is connected to both the refractory separating layer and the outer skin and thus connects the refractory separating layer and the outer skin.
  • the connecting part is preferably made of plastic. Since it is completely housed in the machine room and is thus decoupled from the insulation material by the fire-resistant separating layer, the fire protection properties are hardly impaired by the connecting part.
  • the connecting part can be a plate which preferably covers the entire surface of the inner surface of the outer skin on the side of the machine room.
  • the connecting part thus shares a large common connection area with both the refractory separating layer and the outer skin of the device, as a result of which a stable multi-point fixation can be achieved both with the refractory separating layer and with the outer skin of the device.
  • the connecting part can perform a double function and serve, for example, as sound insulation.
  • the connecting part engages on the one hand in the U-shaped contour of the refractory separating layer and on the other hand is snapped onto an edge contour which is formed on an edge of the outer skin, preferably on the lower and / or rear edge thereof.
  • the edge contour on the outer skin edge can be designed such that it is from the rear and / or lower edge of the side part of the outer skin is directed inwards and forms locking projections.
  • the connecting part can have an outwardly directed rail which projects into the groove of the U-shaped contour. Additionally or alternatively, it can have a groove with a plurality of locking lugs into which the edge contour can be inserted.
  • both sides of the device preferably being of identical or mirror-image design.
  • the refrigerator and / or freezer can be a free-standing device that is intended for free installation, or a built-in device that is intended for installation in a furniture niche.
  • the device can be a refrigerator, a freezer or a fridge-freezer combination device.
  • FIG. 1 shows a perspective exploded view of the base area of a refrigerator and / or freezer according to the invention
  • FIG. 2 a detailed view of the U-shaped contour on the side edge of the refractory separating layer of this base area;
  • FIG. 3 a vertical sectional view through the connection area between the refractory separating layer and the outer skin of the device;
  • FIG. 4 an enlarged area of the sectional view of FIG. 3;
  • Figure 5 a perspective view of a combination of the connecting part and the refractory separating layer.
  • an embodiment of a refrigerator and / or freezer according to the invention is shown, in the rear base area of which there is a machine room 1.
  • the machine room 1 is separated from a cooled usable room 2 of the device by a usable floor extending in several stages from the device floor to the rear wall of the device, only the refractory separating layer 10 of this usable floor being shown in the figures. Neither the insulating material lying above this separating layer 10 nor the inner device container covering the insulating material are shown.
  • the refractory separating layer 10 itself has the step structure of the floor space and is made of a sheet metal.
  • the separating layer 10 is bent in the direction of the machine room 1 into a U-shaped contour 11.
  • the side edges are divided into alternating vertical and horizontal sections by the stepped design of the separating layer, the U-shaped contour 11 being formed in each of the sections.
  • a sealing tape 30 is glued to the end face 11a of the contour 11 over the full length.
  • Both the utility room 2 and the machine room 1 are closed on both sides by outer walls 20 of the device.
  • an insulating material is arranged on the inner sides of the outer walls 20 and clad by the inner device container, which, however, is again not shown.
  • the outer walls 20 are made from a sheet metal.
  • the rear and lower side edges of the outer walls 20 are bent inwards to form a locking contour 21.
  • the latching contour 21 corresponds to a U-shaped contour, the last leg 21b of which, however, is bent by more than 90 ° and therefore projects into the groove of the contour 21 and forms a latching projection.
  • the separating layer 10 lies with the end faces 11a of the contours 11 and the sealing tapes 30 attached thereto on both sides against the inner surfaces of the outer walls 20. This contact position is fixed by a plate-shaped plastic connecting part 40.
  • the connecting part 40 is completely received in the machine room 2 and covers the inner surfaces of the outer walls 20 with respect to the machine room 2.
  • the machine room 2 is essentially triangular, with a stepped leg that runs along the contour 11 of the separating layer 10, and with two straight legs that run along the lower edge and rear edge of the outer walls 20.
  • a combination of the outer wall 20, the separating layer 10 and the connecting part 40 is assembled in such a way that the contour 11 of the separating layer 10 is placed on the inner surface of the outer wall 20 and then the connecting part 40 is pushed and pressed in the machine room in the direction of the outer wall 20, as a result of which the rail 41 penetrates into the U-shaped contour 11 from the inside and the receptacle 42 is placed on the edge contour 21 from the inside until the leg 21 b snaps behind the locking lug 43.
  • a simple construction is thus provided, with which a complete and fire-proof separation between machine room 2 and insulation material is achieved.

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)

Abstract

La présente invention concerne un appareil de réfrigération et/ou de congélation comportant un corps d'appareil qui comprend un espace utile (2) entouré d'une isolation thermique et un espace machine (1) disposé à l'extérieur de l'isolation thermique, au moins un appareil électrique étant situé dans l'espace machine (1), une couche de séparation (10) réfractaire étant disposée sur toute sa surface entre l'espace machine (1) et l'isolation thermique.
PCT/EP2019/067043 2018-06-27 2019-06-26 Appareil réfrigérateur et/ou de congélation comprenant une couche de séparation réfractaire WO2020002452A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102018115532 2018-06-27
DE102018115532.8 2018-06-27
DE102018119587.7 2018-08-13
DE102018119587.7A DE102018119587A1 (de) 2018-06-27 2018-08-13 Kühl- und/oder Gefriergerät

Publications (1)

Publication Number Publication Date
WO2020002452A1 true WO2020002452A1 (fr) 2020-01-02

Family

ID=68885818

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/067043 WO2020002452A1 (fr) 2018-06-27 2019-06-26 Appareil réfrigérateur et/ou de congélation comprenant une couche de séparation réfractaire

Country Status (2)

Country Link
DE (1) DE102018119587A1 (fr)
WO (1) WO2020002452A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230194145A1 (en) * 2019-12-30 2023-06-22 Whirlpool Corporation Side access panel for an appliance

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2227302A (en) * 1989-01-09 1990-07-25 Fawn Eng Corp Vending machine refrigeration system
EP1484563A1 (fr) * 2002-03-13 2004-12-08 Matsushita Refrigeration Company R frig rateur
DE102011007423A1 (de) * 2011-04-14 2012-10-18 BSH Bosch und Siemens Hausgeräte GmbH Haushaltskältegerät
DE102017221904A1 (de) * 2017-12-05 2019-06-06 BSH Hausgeräte GmbH Haushaltsgerätevorrichtung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016216697A1 (de) * 2016-09-05 2018-03-08 BSH Hausgeräte GmbH Kältegerät mit Abluftkanal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2227302A (en) * 1989-01-09 1990-07-25 Fawn Eng Corp Vending machine refrigeration system
EP1484563A1 (fr) * 2002-03-13 2004-12-08 Matsushita Refrigeration Company R frig rateur
DE102011007423A1 (de) * 2011-04-14 2012-10-18 BSH Bosch und Siemens Hausgeräte GmbH Haushaltskältegerät
DE102017221904A1 (de) * 2017-12-05 2019-06-06 BSH Hausgeräte GmbH Haushaltsgerätevorrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230194145A1 (en) * 2019-12-30 2023-06-22 Whirlpool Corporation Side access panel for an appliance
US11953258B2 (en) * 2019-12-30 2024-04-09 Whirlpool Corporation Side access panel for an appliance

Also Published As

Publication number Publication date
DE102018119587A1 (de) 2020-01-02

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