Vacuum insulation panel and insulation structure of refrigerator applying the same

Abstract

A vacuum insulation panel and an insulation structure of a refrigerator applying the same are disclosed. The vacuum insulation panel comprises: a sealing cover having an outermost layer exposed to the outside, a gas shielding layer stacked on the bottom surface of the outermost layer and formed of a thin metal sheet and a metal deposition film, and a heating-fusion bonding layer stacked on the bottom surface of the gas shielding layer and formed of an octane-base material; a core material sealed by the sealing cover in contact with the heating-fusion bonding layer, and provided with an extended insulating portion some parts of which are extended between the bonding portions formed at the sealing cover; and a gas permeation preventing layer formed on the sealing cover, so that can prevent an external air or moisture from penetrating into a vacuum insulation panel.

Description

technical field [0001] The present invention relates to vacuum insulation panels, and more particularly to gas barriers which can prevent damage to sealed enclosures by increasing their strength and can improve vacuum insulation by preventing pinholes in joints of sealed enclosures and by selecting appropriate thickness and materials layer to reduce heat loss in vacuum insulation panels. Background technique [0002] Such as figure 1 As shown, in general, a refrigerator 1 is a device for storing food at a low temperature, and includes a compartment 10 (such as a refrigerator compartment and a freezer compartment) constituting a storage space, and doors (not shown) for opening and closing the refrigerator compartment and the freezer compartment. And mechanical parts (not shown) including refrigerant circulation and maintaining stored food at low temperature. [0003] The tank chamber 10 has a thermal insulating material filled between the outer surface forming the outer sha...

AI Technical Summary

Problems solved by technology

During the folding process, pinholes 99 are generated in the gas shielding layer 423, so outside air flows in through the pinholes to lower the vacuum degree of the core material 41, thereby drastically deteriorating the heat insulation of the vacuum insulation panel 40 over time. performance

[0011] In addition, the gas barrier layer 423 of the airtight casing 42 thus constructed has a problem of cracking even due to slight bending caused by residual stress caused by the rolling process, and effectively prevents external gas or moisture from penetrating into the vacuum. What is good in heat shield 40 is also problematic

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