Manufacturing method of heat insulating part of refrigerator and heat insulating part of refrigerator

Abstract

The invention discloses a manufacturing method of a heat insulating part of a refrigerator and the heat insulating part of the refrigerator. A foaming space is formed in the heat insulating part, andthe manufacturing method comprises the following steps that a part of an exhaust pipe is pre-embedded in the foaming space, and the exhaust pipe comprises a pipe body and a bulge arranged on the outercircumferential of the pipe body; the bulge is located in the foaming space and is suitable for being propped on the inner wall face of the foaming space, and the other part of the exhaust pipe extends out of the exterior of the heat insulating part; and the foaming liquid is injected into the foaming space to be foamed so as to form a heat insulating layer, and after the foaming of the heat insulating layer, the part, exposed out of the heat insulating part, of the exhaust pipe is cut off. According to the manufacturing method of the heat insulating part of the refrigerator, the gas in the foaming space can be exhausted effectively through the exhaust pipe so as to ensure the heat insulating performance of the heat insulating part, the excess bubble fluid in the foaming space can be squeezed out along the exhaust pipe, and the bubble fluid can be prevented from permeating into the appearance surface of the heat insulating part, so that the heat insulating part has no bubble leakage and appearance defects.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a method for manufacturing a refrigerator insulation component and the refrigerator insulation component. Background technique [0002] In the related art, when the cabinet of the refrigerator is foamed, polyurethane and cyclopentane undergo a chemical reaction to convert from liquid to solid to form the insulation layer of the cabinet. During the chemical reaction of polyurethane and cyclopentane, a large amount of gas will be generated. If the gas cannot be discharged in time, it will accumulate in the box, causing cavitation in the insulation layer of the box, resulting in the inability of the box to achieve effective heat preservation. [0003] At present, the exhaust method in the industry is to pierce the vent hole on the box body, and the exhaust is exhausted by piercing the vent hole, but this method has the following defects: 1) The gas cannot be exhausted e...

AI Technical Summary

Problems solved by technology

During the chemical reaction of polyurethane and cyclopentane, a large amount of gas will be generated. If the gas cannot be discharged in time, it will accumulate in the box, causing cavitation in the insulation layer of the box, resulting in the inability of the box to achieve effective heat preservation.

[0003] At present, the exhaust method in the industry is to pierce the vent hole on the box body, and the exhaust is exhausted by piercing the vent hole, but this method has the following defects: 1) The gas cannot be exhausted effectively; 2) Increase the number of people who pierce the vent hole ;3) When the gas is discharged from the vent hole, part of the bubble liquid will also be discharged and bonded to the box body, resulting in appearance defects and affecting user experience

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