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Refrigerator and manufacturing method

A manufacturing method and technology of refrigerators, which are applied to household refrigerators, household refrigeration devices, lighting and heating equipment, etc., which can solve the problem of decreased heat insulation, expanding the space of inner boxes and protective shells, and inability to obtain sufficient heat insulation, etc. problem, to achieve the effect of miniaturization

Active Publication Date: 2021-09-24
日立グローバルライフソリューションズ株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, due to the thermal bridge (thermal bridge) of the protective case, there is a possibility that sufficient heat insulation cannot be obtained.
[0007] In addition, depending on the concave-convex shape of the outer surface of the inner box, there is a possibility that a gap not filled with foam insulation material is formed between the inner box and the protective case, There is a possibility of causing a decrease in thermal insulation
Therefore, it is necessary to expand the space between the inner box and the protective case, and there is a possibility that the size of the refrigerator may increase.

Method used

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  • Refrigerator and manufacturing method
  • Refrigerator and manufacturing method
  • Refrigerator and manufacturing method

Examples

Experimental program
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Effect test

no. 2 approach

[0069] refer to Figure 8 The refrigerator of 2nd Embodiment is demonstrated. Figure 8 is equivalent to the above Figure 4A A schematic enlarged cross-sectional view of a schematic enlarged cross-sectional view of . This embodiment differs from the above-mentioned first embodiment in that the heat insulating foam 10B is attached to the inner box 2 via the heat insulating foams 18g covering both ends of the vacuum heat insulating material 11 .

[0070] like Figure 8As shown, the foam heat insulation protection material 10B on the right includes a vacuum heat insulation material 11, a foam heat insulation material 18f covering the rear end portion 11f of the vacuum heat insulation material 11, and a foam heat insulation material 18f covering the front end portion 11g of the vacuum heat insulation material 11. Foam insulation material 11g. Each foam heat insulating material 18f, 18g is foam-molded in advance, and the edge part with the inner box 2 is sealed with the adhesi...

no. 3 approach

[0081] refer to Figure 9 The refrigerator of 3rd Embodiment is demonstrated. Figure 9 is equivalent to the above Figure 4A A schematic enlarged cross-sectional view of a schematic enlarged cross-sectional view of . This embodiment differs from the above-mentioned second embodiment in that both end portions of the vacuum heat insulating material 11 are attached to the inner box 2 via the adhesive portion 17 . Moreover, at least a part (upper part, a lower part, etc.) of the vacuum heat insulating material 11 is attached to the inner box 2 via the foam heat insulating material 12 which is not shown in figure.

[0082] As the adhesive portion 17, an adhesive method such as polyurethane foam, hot melt, or double-sided tape can be employed. In this embodiment, the corner portion 2 of the inner box 2, the rear end portion 11f of the right vacuum heat insulating material 11 and the right end portion 11e of the rear vacuum heat insulating material 11 are attached to the inner bo...

no. 4 approach

[0092] refer to Figures 11A-11D The refrigerator of 4th Embodiment is demonstrated. Figure 11A It is the equivalent of the refrigerator of the fourth embodiment of the present invention Image 6 A schematic sectional view of a schematic sectional view of . This embodiment differs from the above-mentioned first to third embodiments in that a groove portion 10k is provided in the lower foam heat insulating material 10A and the upper foam heat insulating material 10C, and left and right vacuum insulation materials are assembled. Thermal Materials11.

[0093] like Figure 11A As shown, the vacuum heat insulation material 11 of the foam heat insulation protection material 10A of the lower side is located in an upper part, and the foam heat insulation material 12 covers the lower side. The lower plate 2 b of the inner box 2 is in contact with the vacuum heat insulating material 11 . like Figure 11D As shown, the foam heat insulation protection material 10A on the lower side...

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Abstract

The invention provides a refrigerator and a manufacturing method, which can protect a vacuum heat insulation material, prevent a heat bridge, improve heat the insulation performance and realize miniaturization. The refrigerator (1) is provided with an inner box (2), an outer box (3) covering the inner box (2), a space (S1) formed between the inner box (2) and the outer box (3), and a foamed heat-insulating protective material (10) disposed in the space (S1) and attached to the inner box (2). The foamed heat-insulating protective material (10) has a plate-shaped vacuum heat-insulating material (11) and a foamed heat-insulating material (12) that supports at least a portion of the vacuum heat-insulating material (11). The foamed heat-insulating protective material (10) is attached to the inner box (2) by means of the foamed heat-insulating material (12).

Description

technical field [0001] The present invention relates to a refrigerator and a manufacturing method. Background technique [0002] Generally, in order to save energy and expand an effective space inside a refrigerator, a vacuum heat insulating material is disposed in a space formed between an inner box and an outer box of the refrigerator. The space formed between the inner case and the outer case is filled with a foam heat insulating material. Vacuum heat insulating materials are generally constituted by covering them with a thin resin board, so there is a possibility of damage due to trauma during manufacture or when a strong impact is received during use. [0003] Conventionally, the technique disclosed in patent document 1 is known as the technique which prevents the damage of a vacuum heat insulating material. Patent document 1 is provided with the protective case which accommodates a vacuum heat insulating material, and after accommodating a vacuum heat insulating mate...

Claims

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Application Information

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IPC IPC(8): F25D11/00F25D23/00F25D23/02F25D23/06
CPCF25D11/00F25D23/06F25D23/006F25D23/02
Inventor 上甲康之盐野谦治新井祐志川边拓也漆原笃彦河井良二丹野洋平内田麻里
Owner 日立グローバルライフソリューションズ株式会社
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