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Foaming process of refrigerator

A refrigerator and process technology, applied in household appliances, other household appliances, household components, etc., can solve the problems of poor thermal conductivity of products, long time, high cost of foaming materials, shorten curing time, improve thermal insulation performance, The effect of improving the surface crust

Active Publication Date: 2022-03-25
HAIER SMART HOME CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Existing refrigerators use constant pressure when foaming, which has the problems of poor thermal conductivity of the product, high cost of foaming materials, and long time

Method used

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  • Foaming process of refrigerator
  • Foaming process of refrigerator
  • Foaming process of refrigerator

Examples

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Embodiment Construction

[0037] figure 1 It is a schematic diagram of the device when performing the foaming process of the refrigerator 100 according to an embodiment of the present invention. figure 2 is a schematic flowchart of the foaming process of the refrigerator 100 according to an embodiment of the present invention. The refrigerator 100 in the embodiment of the present invention includes a box body 110 and a door body (not shown in the figure). The box body 110 includes an outer shell 120 and an inner tank 130 . The interior of the liner 130 defines a storage space 140 . A foaming space 150 is defined between the inner tank 130 and the outer shell 120 . The storage space 140 constitutes one or more storage compartments. The door body is arranged on the front side of the storage compartment for opening and closing the storage compartment. The number and structure of storage compartments can be configured according to requirements. For example, the storage compartment includes a refrige...

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Abstract

The invention provides a foaming process of a refrigerator, comprising: placing the box body of the refrigerator in a mold cavity; using polyurethane foaming reaction to realize the foaming and filling of the refrigerator; wherein the polyurethane foaming process is carried out During the reaction, the pressure inside the mold cavity is dynamically adjusted. The foaming process of the refrigerator of the present invention proposes to dynamically adjust the pressure inside the mold cavity during the polyurethane foaming reaction of the refrigerator, so as to realize the improvement of thermal insulation performance, reduce the cost of foaming materials, shorten the curing time, and reduce the number of bubbles on the surface. Reduced, surface crust improved.

Description

technical field [0001] The invention relates to the technical field of refrigeration and freezing, in particular to a foaming process for a refrigerator. Background technique [0002] Refrigerator foaming generally refers to rigid polyurethane foaming, and the foam is between the outer shell and the inner tank of the refrigerator. The performance of the foam and the production process determine the performance of the refrigerator. Existing refrigerators use constant pressure for foaming, which has the problems of poor thermal conductivity of the product, high cost of foaming materials, and long time. Contents of the invention [0003] One object of the present invention is to provide a foaming process for a refrigerator that can improve thermal insulation performance and reduce the cost of foaming materials. [0004] A further object of the present invention is to make it easier to regulate the pressure of the foaming process of the refrigerator. [0005] In particular,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C44/18B29C44/60
CPCB29C44/18B29C44/60B29L2031/7622
Inventor 王朝满夏中良段志国郑仰才刘站站杨志敏尹冬冬左胜高
Owner HAIER SMART HOME CO LTD
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