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Thin-wall refrigerator insulating layer

An insulation layer and refrigerator technology, which is applied in lighting and heating equipment, applications, household appliances, etc., can solve the problems of high refrigerator manufacturing cost, poor appearance quality and insulation effect, and cumbersome process, so as to improve the insulation effect and appearance quality And the effect of aesthetics and low thermal conductivity

Inactive Publication Date: 2019-12-13
CHANGHONG MEILING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a thin-walled refrigerator insulation layer, by canceling the VIP boards on both sides of the refrigerator, and attaching the VIP board to the back panel of the refrigerator; and using a pure LBA foaming system to make a polyurethane foam layer to improve the insulation of the refrigerator Effect: solve the problems of high manufacturing cost and cumbersome process of existing refrigerators, as well as poor appearance quality and heat preservation effect

Method used

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Examples

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Effect test

Embodiment 1

[0026] like figure 1 As shown, the present invention is a thin-walled refrigerator insulation layer, including a refrigerator body, which includes a polyurethane foam layer 1, a VIP board 3, an inner container 4 and an outer shell; a VIP board 3 is installed on the back of the refrigerator body; and the VIP board One opposite side of the plate 3 is bonded to the polyurethane foam layer 1 and the back panel 2 of the refrigerator body respectively; the back panel 2 is arranged at the rear of the refrigerator body, and the VIP panel 3 is interposed between the back panel 2 and the polyurethane foam layer between 1;

[0027] Among them, the position covered by the VIP board corresponds to the refrigerator fan, motor, air duct and air return pipe (but not limited to these), which can solve the problem of condensation on the back panel of the refrigerator and improve the insulation performance of the thin-walled refrigerator;

[0028] Among them, the thermal conductivity of the pol...

Embodiment 2

[0037] The invention relates to a semi-thin-walled refrigerator. The thickness of the foam layer at the rear of the refrigerator body is the same as that of an ordinary refrigerator. VIP boards are not provided, and the foam layers at other parts are thin-walled. LBA foaming is used to produce The obtained polyurethane foam layer has lower thermal conductivity, fewer bubbles on the surface of the foam, uniform distribution of density and thermal conductivity, and excellent foam insulation performance.

[0038] Wherein, the polyurethane foam layer includes the following components by weight: 100 parts of combined polyether, 30 parts of LBA foaming agent, 149.5 parts of polyphenyl polymethylene polyisocyanate, which is beneficial to reduce the foam cell diameter, improve the cell internal pressure and Fluidity, reduce foam thermal conductivity and foam density, excellent foam insulation performance, cost-effective.

[0039] The semi-thin-walled refrigerator prepared by the prese...

Embodiment 3

[0043] Referring to specific examples 1 and 2, the polyurethane foam layer includes the following components by weight, 100 parts of combined polyether, 32 parts of LBA foaming agent, and 152 parts of polyphenyl polymethylene polyisocyanate.

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Abstract

The invention discloses a thin-wall refrigerator insulating layer, and relates to the technical field of refrigerators. The thin-wall refrigerator insulating layer comprises a refrigerator body, wherein the refrigerator body comprises a polyurethane foam layer and a VIP plate; a VIP plate is arranged on the back of the refrigerator body; and one opposite side surface of the VIP plate is respectively bonded with the polyurethane foam layer and a rear back plate of the refrigerator body. According to the thin-wall refrigerator insulating layer, VIP plates on two sides of a refrigerator are cancelled, so that the manufacturing cost of the refrigerator is reduced, the manufacturing process of the refrigerator is simplified, and the appearance beauty of the refrigerator is improved; the VIP plate is attached to the rear back plate of the refrigerator, so that the problem of condensation of the rear back plate of the refrigerator is solved, and the heat insulation performance of the rear back plate of the refrigerator is improved; and the polyurethane foam layer with excellent heat insulation performance is prepared by adopting a pure LBA foaming system, so that the heat insulation effect of the refrigerator is improved.

Description

technical field [0001] The invention belongs to the technical field of refrigerators, in particular to a thin-walled refrigerator insulation layer. Background technique [0002] With the advancement of science and technology, refrigerators are gradually developing towards larger volumes and thinner walls. Compared with ordinary refrigerators with the same size and thick foam layer, the effective volume of refrigerators with thinner walls has increased by 15-30%. The need for an upgrade. [0003] The thickness of the insulation layer of thin-walled refrigerators is relatively thin, and the thickness of the insulation layer in the frozen part generally does not exceed 45mm, which is about half of the thickness of the foam layer of ordinary refrigerators. To ensure the insulation effect of thin-walled refrigerators, a large number of VIP boards are required. There are VIP boards on both sides and back of the cabinet, and even on the top and bottom of the cabinet; however, due ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D23/06C08J9/14C08L75/08
CPCC08J9/144C08J2203/142C08J2375/08F25D23/065
Inventor 王贞平韩爱林冯翘楚
Owner CHANGHONG MEILING CO LTD
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