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Vacuum heat insulator and refrigerator

A technology for vacuum insulation and refrigerator, which is applied to household refrigerators, lighting and heating equipment, cooling fluid circulation devices, etc.

Pending Publication Date: 2021-07-06
QINGDAO HAIER REFRIGERATOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyurethane foam has a high thermal conductivity, but it needs to be set to a thickness of more than 30cm when used, which results in a reduction in the internal volume of the refrigerator
The vacuum degree of the vacuum insulation panel can only reach 10 -2 Pa, and when used, it needs to be embedded in the polyurethane foam layer, which makes the process complicated and also has the problem of reducing the internal volume of the refrigerator.

Method used

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  • Vacuum heat insulator and refrigerator
  • Vacuum heat insulator and refrigerator
  • Vacuum heat insulator and refrigerator

Examples

Experimental program
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Embodiment Construction

[0052] In the following description, orientations or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", etc. are orientations based on the refrigerator 200 itself as a reference.

[0053] figure 1 is a schematic cross-sectional view of a vacuum insulator 100 according to an embodiment of the present invention. figure 2 is a schematic cross-sectional view of a vacuum insulator 100 according to another embodiment of the present invention. Such as figure 1As shown, the vacuum insulation body 100 of the embodiment of the present invention includes: a first plate 101 , a second plate 102 and a sealing member 103 . The first board 101 has a first thickness M1; the second board 102 is arranged at a distance from the first board 101, and the second board 102 has a second thickness M2, and the first thickness M1 is greater than the second thickness M2. The sealing member 103 is arranged between the first plate 101 and the second plate 102, con...

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Abstract

The invention provides a vacuum heat insulator and a refrigerator with the same. The vacuum heat insulator comprises a first plate, a second plate and sealing pieces, wherein the first plate has first thickness; the second plate and the first plate are oppositely arranged in a spaced mode, the second plate has second thickness, and the first thickness is larger than the second thickness; and the sealing pieces are arranged between the first plate and the second plate and are configured to seal and fix the first plate and the second plate, and a vacuum cavity is defined among the first plate, the second plate and the sealing pieces. According to the vacuum heat insulator, convective heat transfer can be reduced by vacuumizing a space between the two layers of plates which are sealed in a closed mode; and the first plate has the first thickness, the second plate has the second thickness, and the first thickness is larger than the second thickness, so that the whole vacuum heat insulator is stable in structure while not too heavy.

Description

technical field [0001] The invention relates to the technical field of refrigerating and freezing devices, in particular to a vacuum heat insulator and a refrigerator. Background technique [0002] In conventional heat insulation methods for refrigerators, there are usually two methods, one is to provide a polyurethane foam layer, and the other is to use a vacuum insulation board (ie VIP board) with a polyurethane foam layer. Polyurethane foam has a high thermal conductivity, but it needs to be set at a thickness of about 30 cm or more during use, thereby reducing the internal volume of the refrigerator. The vacuum degree of the vacuum insulation panel can only reach 10 -2 Pa, and when in use, it needs to be embedded in the polyurethane foam layer, resulting in a complicated process, and also has the problem of reducing the internal volume of the refrigerator. Contents of the invention [0003] It is an object of the present invention to provide a structurally stable vac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D23/06F25D23/02F25D11/02
CPCF25D23/063F25D23/065F25D23/02F25D11/02F25D2201/14F25D2323/02F25D23/062F25D2500/02
Inventor 费斌朱小兵刘站站李鹏张鹏
Owner QINGDAO HAIER REFRIGERATOR CO LTD
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