Back board structure of refrigerator

Abstract

A backplate structure of refrigerator is characterized by that a foaming liquid as thermal insulating material is filled in the gap between backplate and internal casing, the inner surface of said backplate has half-lune holes for exhausting the gas generated during solidification of foaming liquid, and the hole cover is linked to the backplate to partially cover the hole. Its advantages are simplifying job and saving raw material.

Description

technical field [0001] The invention relates to a backboard structure of a refrigerator, in particular to a backboard structure which can effectively prevent the foaming liquid between the inner casing and the backboard from flowing out Background technique [0002] A refrigerator is a machine that uses a freezing cycle to generate cold air to preserve food. Therefore, it is necessary to keep the storage space where the food is stored at a low temperature. In order to prevent cold air from flowing out of the storage space of the refrigerator and maintain a certain low temperature in the storage space, heat insulating materials are generally used to prevent heat exchange between the storage space and the outside of the refrigerator. [0003] figure 1 is a side sectional view of a general refrigerator, such as figure 1 As shown, the body 2 of the refrigerator is composed of an inner shell 3 and an outer shell 4 . The outer casing 4 is generally made of steel plates to preve...

AI Technical Summary

Problems solved by technology

[0005] Obviously, non-woven fabric must be pasted on the inside of the refrigerator backboard in the prior art to prevent the foaming liquid from flowing out, which not only increases the operation process, but also increases the consumption of materials, resulting in a decrease in production efficiency and an increase in cost

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