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Refrigerator

A refrigerator and outer box technology, applied in the field of refrigerators, can solve the problems of difficult to use vacuum thermal insulators, difficult to use plate-shaped vacuum thermal insulators, weak strength, etc.

Inactive Publication Date: 2007-08-29
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in this refrigerator, since only the vacuum heat insulator 5 having low strength compared with rigid urethane foam is used, the heat insulation performance is high, but the strength is very weak
That is, easily deformed in appearance
In addition, since the shape of the inner box and the outer box is not flat, it is difficult to use a plate-shaped vacuum heat insulator on the uneven surface of the heat pipe and the like.
It is effective to use a vacuum thermal insulator using a vapor-deposited aluminum film on one plane to improve thermal insulation performance, however, it is difficult to use a vacuum thermal insulator using a vapor-deposited aluminum film in terms of reliability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0023] Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 6 . The refrigerator 10 is filled with resin foam as the space formed by the inner box 11 made of synthetic resin such as acrylonitrile, butadiene and styrene copolymer (ABS) and the outer box 12 made of metal such as iron plate. Solid polyurethane foam (hereinafter referred to as polyurethane foam) 13 constitutes. A refrigerating chamber 15 and a vegetable chamber 16 are formed on the upper part of the insulating partition wall 14; A compressor 21 is arranged inside a machine compartment 20 arranged below the rear of the refrigerator 10 . Moreover, the refrigerator 10 has the cooler 22 for refrigeration, the air blower 23 for refrigeration, the cooler 24 for freezing, and the air blower 25 for freezing. Condenser 26 is attached to the bottom surface of refrigerator 10 .

[0024] On the front opening of the refrigerator 10, there are respectively provided with a hinged refrigerator com...

Embodiment approach 2

[0050]The basic structure of the refrigerator in Embodiment 2 of this invention is the same as Embodiment 1. As shown in FIG. In Embodiment 1, the center line average roughness of the outer surface of the outer case 12 was prescribed|regulated. In the present embodiment, the glossiness of the outer surface of the outer case 12 where the vacuum heat insulators 32 , 33 , and 34 are arranged on the surface of the outer case 12 is reduced from about 90 to 80 or less.

[0051] Here, the so-called glossiness, according to the JIS standard (JIS, Z8741), on the glass surface with a refractive index of 1.567, when the incident angle is 60 °, 10% of the reflectivity is taken as the glossiness 100, or when the incident angle 5% of the reflectance at 20° was taken as glossiness 100.

[0052] Similar to Embodiment 1, the vacuum heat insulators 32 , 33 , and 34 are connected and attached to the outer case 12 . Therefore, the outer surface of the outer case 12 may be deformed due to irregu...

Embodiment approach 3

[0054] 9 is a cross-sectional view of main parts of a side wall of a refrigerator according to Embodiment 3 of the present invention. Fig. 10 is a perspective view of the main part. The basic structure other than these is the same as that of Embodiment 1.

[0055] In the drawing, a soft member 53 , a vacuum heat insulator 54 , and a rigid urethane foam 55 are arranged between the outer case 51 and the inner case 52 as insert members for preventing deformation of the outer surface of the outer case from the side of the outer case 51 . Preferably, the soft member 53 is made of a material larger than the vacuum heat insulator 54 and softer than the vacuum heat insulator 54 . For example, a resin foam composed of an independent foam is preferable.

[0056] In addition, the thickness t1 of the soft member 53 is preferably not less than the flatness of the vacuum heat insulator 54 and not more than the thickness of the vacuum heat insulator. Specifically, it is not less than 3 mm...

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PUM

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Abstract

A refrigerator is provided, which is characterized by comprising an outer box, an inner box, and a resin foam body and a vacuum insulator disposed therebetween, radiating pipes disposed between the insulator and the outer box, and a fixation element for fixing the radiating pipes to the outer box. A groove is provided at a part of the vacuum insulator facing the radiating pipes. One end of the fixation element extends to outside, while the second end thereof reside in the internal portion more inner than the vacuum insulator. A first space formed between the fixation element and the outer box and the second space formed between the fixation element and the groove of the vacuum insulator communicate with outside.

Description

[0001] This application is a divisional application of a patent application whose filing date is April 21, 2003, application number is 03808963.7, and the title of the invention is "refrigerator". technical field [0002] The present invention relates to refrigerators utilizing vacuum thermal insulators. Background technique [0003] In recent years, with the aim of energy saving and space saving of refrigerators, in order to improve the heat insulation performance of refrigerators, the use of vacuum heat insulators with high heat insulation performance has been studied. Vacuum thermal insulators have several times to 10 times higher thermal insulation performance than rigid polyurethane foam, which is a resin foam. In today's increasingly energy-saving requirements, within an appropriate range. It is an urgent task to maximize the use of this vacuum thermal insulator to improve the thermal insulation performance. In addition, when a vacuum heat insulator is laminated with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D23/00F25D11/02F25D23/06
CPCF25D2201/14F25D11/022F25D2400/04F25D23/061F25D23/06
Inventor 高西英知今田宽训佐佐木正人桥本晋一宅岛司樋上和也中野明青木宏山田宗登大津强西山仁启夏原雄司上迫丰志
Owner PANASONIC CORP