Refrigerator

A refrigerator and molding technology, applied in lighting and heating equipment, refrigeration device isolation, household appliances, etc., can solve problems such as inappropriate internal and external volume ratios

Inactive Publication Date: 2010-09-15
BSH BOSCH & SIEMENS HAUSGERAETE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the internal and external volume ratio is not appropriate

Method used

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Embodiment Construction

[0017] figure 1 A refrigerator 1 is shown with an interior space 8 delimited by two side walls 2 , a bottom 4 , a cover 5 and a rear wall 3 . The opening on the front side is closed by a door 6 . The side walls 2, the bottom 4, the cover 5 and the rear wall 3 consist of molded parts, wherein the side walls 2, the cover 5 and the rear wall 3 are arranged in the shape of a panel. Instead, a step is formed in the bottom 4 .

[0018] The core of the molded part consists of a porous insulating foam (porous insulating foam), the so-called nanofoam (nanofoam). The open-cell insulating foam composed of polyurethane has a cell size in the nanometer range, ideally about 1 to 10 nanometers. All molded parts have airtight and watertight enclosures. The encapsulation consists of a metallized multilayer film (metallized multilayer film). The molded part is evacuated to an ideal internal pressure of 1 to 3 mbar. Metallized multilayer films almost completely prevent the diffusion of wat...

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Abstract

The invention relates to a refrigerator (1) comprising a cold generator and an insulated inner space (8). According to the invention, the inner space (8) is insulated by moulded parts (2, 3, 4, 5, 6) comprising a core consisting of a porous insulating material, and an airtight envelope. The internal pressure of the moulded parts (2, 3, 4, 5, 6) is less than 100mbar, and the insulating material is a nanofoam which has a pore size of less than 100 nanometres.

Description

technical field [0001] The invention relates to a refrigerator according to the preamble of claim 1 . Background technique [0002] So-called vacuum panels are already known for various insulating purposes. These vacuum panels generally comprise an airtight outer skin enclosing a core consisting of a porous insulating material. Silica or aerogels, as well as open-cell foams made of polyurethane, are often used as thermal insulation. The panels are evacuated and sealed. During this processing, the internal pressure is reduced to values ​​below 100 mbar. Due to the evacuation, on the one hand, the rigidity and stability of the panels are increased, and on the other hand, the thermal insulation effect is enhanced. This effect can be explained in that the probability of collisions of the air molecules present within the pores is reduced. Such vacuum panels have a thermal conductivity ranging from 0.017 to 0.025 W / mK, depending on the core material used and the internal pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D23/06
CPCF25D2201/14F25D23/063
Inventor S·霍尔策S·科恩D·K·帕乍拉
Owner BSH BOSCH & SIEMENS HAUSGERAETE GMBH
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