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Vacuum isolation panel and refrigerator using the same

A technology of vacuum insulation panels and refrigerators, which is applied in the direction of protecting pipelines, applications, and household appliances through heat insulation, and can solve problems such as slow leakage, deterioration of heat insulation performance, and increased cost

Inactive Publication Date: 2016-06-01
TOSHIBA LIFESTYLE PROD & SERVICES CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Depending on the size of the hole formed in the outer package, for example, a slow leak occurs in which the thermal insulation performance of the vacuum insulation panel gradually deteriorates over a long period of time, such as tens of days to several years, and finally, the inside of the outer package Atmospheric pressure significantly deteriorates thermal insulation performance
Therefore, even if a sufficient thermal insulation performance is confirmed at the time of manufacture of the vacuum insulation panel, the thermal insulation performance may gradually deteriorate due to the above-mentioned slow leakage thereafter, and the reliability of the thermal insulation performance over a long period of time may exist. Secure Difficult Situations
[0007] In this regard, it is also conceivable to mix an adsorbent that adsorbs water that has entered the interior of the outer cover such as calcium oxide (CaO) into the core material, but the cost increases and the usage amount of the adsorbent is limited.

Method used

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  • Vacuum isolation panel and refrigerator using the same
  • Vacuum isolation panel and refrigerator using the same
  • Vacuum isolation panel and refrigerator using the same

Examples

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Embodiment

[0033] Hereinafter, the present invention will be described more specifically by way of examples, but the present invention is not limited by these examples.

[0034]The configurations other than the core material 52 are the same for the vacuum insulation panels of the examples and the comparative example, and the example uses an inorganic fiber sheet 52a1 that is flame-treated and given a hydroxyl group as the core material 52 housed in the outer cover 54 The example in which the laminated product 52a was laminated was manufactured, and the comparative example was manufactured using the laminated product 52a obtained by laminating the inorganic fiber sheet 52a1 which was not subjected to the treatment for imparting hydroxyl groups as the core material 52 housed in the outer cover material 54. example of. In addition, the thermal conductivity (initial value) at the time of manufacture of each vacuum insulation panel was 2.5 mW / mK for all.

[0035] About each vacuum insulation...

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Abstract

Provided are a vacuum isolation panel and a refrigerator using the same. The vacuum isolation panel may maintain thermal isolation performance for a long time and is provided with a bag-shaped wrapping member (54) of which the interior is decompressed; and a core material (52) received in the wrapping member (54) and having thermal isolation performance. Hydroxyl-endowing treatment is applied to the core material (52).

Description

[0001] Associate application [0002] This application enjoys the priority of the basic application based on Japanese Patent Application No. 2014-236888 (filing date: November 21, 2014). This application incorporates the entire content of the basic application by referring to this basic application. technical field [0003] This embodiment relates to a vacuum insulation panel and a refrigerator using a vacuum insulation panel. Background technique [0004] Conventionally, a refrigerator is constituted by a heat insulating box filled with a foam heat insulating material between an outer box and an inner box, and a storage room is formed inside the heat insulating box. In the refrigerator, in order to further improve the heat insulation performance to reduce power consumption, or to thin the wall thickness of the heat insulation box to improve the internal volume efficiency of the box, so as to replace the foam insulation filled between the outer box and the inner box A part...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L59/065F25D23/06
CPCF16L59/065F25D23/065
Inventor 吉田隆明
Owner TOSHIBA LIFESTYLE PROD & SERVICES CORP