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Refrigerator equipped with vacuum insulation material

A technology of vacuum insulation materials and refrigerators, which can be used in home appliances, mechanical equipment, heat exchange equipment, etc., and can solve the problems of not being able to give full play to the thermal insulation performance, promoting the thermal bridge of the cladding material and failing to obtain the predetermined effect, etc., to achieve the purpose of suppressing thermal insulation Deterioration of performance, reduction of man-hours for assembly work, effects of uniform load

Inactive Publication Date: 2012-05-09
HITACHI APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As the existing technology, generally considering workability, etc., for example, vacuum insulation materials are often placed on the flat part of the outer box side of the refrigerator box, but there are also thermal bridges of the coating materials that are unique to vacuum insulation materials. When the original thermal insulation performance is fully exhibited
In addition, since there are cases where high-temperature parts such as heat dissipation pipes are installed on the outer case side, the thermal bridge of the covering material may be promoted and the intended effect may not be obtained.

Method used

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  • Refrigerator equipped with vacuum insulation material
  • Refrigerator equipped with vacuum insulation material
  • Refrigerator equipped with vacuum insulation material

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Effect test

no. 1 approach

[0041] Regarding the refrigerator provided with the vacuum insulation material according to the first embodiment of the present invention, refer to Figure 1 to Figure 7 Be explained. figure 1 It is a front view of the appearance of the refrigerator provided with the vacuum insulation material concerning 1st Embodiment of this invention. figure 2 It is a longitudinal sectional view of the refrigerator provided with the vacuum insulation material concerning 1st Embodiment, and is figure 1 Sectional view of line A-A. image 3 It is a cross-sectional view of the vacuum insulation material used in the first embodiment.

[0042] in addition, Figure 4 It is a longitudinal sectional view of the refrigerator provided with the vacuum insulation material concerning 1st Embodiment, and is figure 2 Cross-sectional view of the X-X line. Figure 5 It is a cross-sectional view of the refrigerator provided with the vacuum heat insulating material according to the first embodiment, an...

no. 2 approach

[0072] Next, refer to Figure 8 The structure of the separator in the refrigerator provided with the vacuum heat insulating material concerning 2nd Embodiment of this invention is demonstrated. Figure 8 It is a figure which shows the arrangement|positioning of the spacer with respect to an outer case and the foaming direction of foamed polyurethane concerning 2nd Embodiment. In the second embodiment, due to the figure 1 , image 3 , Figure 4 , Figure 5 and Figure 7 Since the structure of the refrigerator provided with the vacuum insulation material concerning 1st Embodiment demonstrated is the same, this structure is used.

[0073] exist Figure 8 In the spacer 71 used in the second embodiment, the same material as the foamed polyurethane 23 is molded into a predetermined shape with a molding die not shown in advance, so it has the same structure as the spacer 70 of the first embodiment. The joining surfaces 71a, 71b formed of continuous planar surfaces may be provi...

no. 3 approach

[0085] Next, refer to Figure 11 and Figure 12 The shape of the spacer according to the third embodiment, the relational structure and arrangement structure of the heat radiation pipes will be described below. Such as Figure 11 As shown in (a), the spacer 77 used in the third embodiment is provided with a relief groove so that the heat dissipation pipe 90 does not abut against the spacer 70 of the first embodiment. Such as Figure 11 As shown in (b), the relief groove 77c for the heat radiation pipe 90 is provided on the joint surface 77b so that the spacer 77 can be provided on the projection surface of the heat radiation pipe 90 fixed by the aluminum tape 91 on the inner surface of the outer case 21e. . The width and height of the groove 77c are set to be larger than the diameter of the heat radiation pipe 90 so that the polyurethane foam 23 flows between the heat radiation pipe 23 and the groove 77c and fills it up. As for the heat radiation pipe 90, as shown in the ...

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Abstract

Provided is a refrigerator wherein a spacer and a supporting member are arranged between a vacuum insulation material and the outer box and the inner box, respectively, so that the vacuum insulation material is not peeled by the foaming pressure of urethane foam and a portion not filled with urethane foam does not occur. Since a continuous plane is employed as the adhesion plane of a vacuum insulation material (50e) and the outer box (21e) in a spacer (70) when the vacuum insulation material (50e) is arranged, adhesion area can be increased, the spacer (70), the vacuum insulation material (50e) and the outer box (21e) can be bonded strongly, and application work of adhesive or sticking work is facilitated because the adhesion plane is a continuous plane. Furthermore, the vacuum insulation material (50e) is not peeled by foaming pressure because such a structure as the vacuum insulation material (50e) is sandwiched by the spacer (70) and a supporting member (80) can be taken by arranging the supporting member (80) on the inner box side or on the surface of the vacuum insulation material on the inner box side.

Description

technical field [0001] The invention relates to a refrigerator, in particular to the shape of a vacuum heat insulating material, and the related structures of the vacuum heat insulating material, an outer box and an inner box. Background technique [0002] In recent years, refrigerators have been required to save energy from the viewpoint of global environment protection such as prevention of global warming. In addition, as a recent social background, there is a tendency of double-employment and small households. Therefore, due to the increase in households that use weekends and rest days to collectively purchase food materials, the demand for larger refrigerators is increasing year by year. [0003] In order to save energy, conventional refrigerators have been sold by using rigid polyurethane foam as the insulation material of the refrigerator body and vacuum insulation material to greatly improve the insulation performance. Vacuum insulation has more than 10 times the the...

Claims

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Application Information

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IPC IPC(8): F25D23/06
CPCF25D2201/14F25D23/062F16L59/06F25D23/06
Inventor 越后屋恒荒木邦成井关崇石渡宽人鹤贺俊光新井佑志
Owner HITACHI APPLIANCES INC
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