Refrigerator and vacuum thermal insulating material and producing method thereof

A technology of vacuum heat insulation material and manufacturing method, which is applied in the direction of chemical instruments and methods, heat exchange equipment, household refrigeration equipment, etc., can solve the problems of poor strength and sufficient progress, and achieve high strength, excellent heat insulation performance and effective use Effect

Inactive Publication Date: 2008-01-02
HITACHI APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the core material of this vacuum insulation material is hot-pressed together with the thin plate-shaped inorganic fiber assembly, there is a problem that the bonding between the pulverized products is not necessarily sufficient, and the strength is poor.

Method used

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  • Refrigerator and vacuum thermal insulating material and producing method thereof
  • Refrigerator and vacuum thermal insulating material and producing method thereof
  • Refrigerator and vacuum thermal insulating material and producing method thereof

Examples

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Embodiment Construction

[0033] Hereinafter, several embodiments of the present invention will be described with reference to the drawings. In addition to domestic and commercial refrigeration-freezers, the so-called refrigerator of the present invention also includes: automatic vending machines, commodity display racks, commodity display cabinets, cold storage boxes, cold boxes, refrigeration-freezer cars and the like.

[0034] Next, a refrigerator and a vacuum insulation material according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 7. FIG.

[0035] The overall structure of the refrigerator of this embodiment and its manufacturing method will be described with reference to FIG. 1 and FIG. 2 . Fig. 1 is a perspective view of a refrigerator according to a first embodiment of the present invention; Fig. 2 is a schematic diagram of a section of important parts in Fig. 1 .

[0036]The refrigerator of this embodiment is composed of two parts: an insulatin...

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Abstract

In the manufacturing method of the refrigerator in the invention, a new material inorganic fiber assembly 7 is produced in a sheet shape, and a waste material inorganic fiber assembly 6 is produced in a sheet shape using a waste core material formed of the inorganic fiber assembly. The new material inorganic fiber assembly 7 and the waste material inorganic fiber assembly 6 are laminated, and the laminated body is impregnated with a binding material and thermally pressed, thereby binding the laminated body via the binding material, compressing it to a predetermined thickness, and forming a core material 2. Then, the core material 2 is stored in a covering material 1 formed of gas barrier film and evacuated and sealed, thereby producing the vacuum heat insulating material 50. Then, the vacuum heat insulating material 50 is arranged between an outer box and an inner box, and then a foaming heat insulating material 24 is filled into a space between the outer box 22 and the inner box 23 to form a heat insulating body.

Description

technical field [0001] The present invention relates to a refrigerator using a vacuum heat insulating material, a vacuum heat insulating material, and a manufacturing method thereof. Background technique [0002] In recent years, from the viewpoint of global warming, the need to reduce the electric energy consumed by home appliances has been publicized. Refrigerators consume a lot of electrical energy among home appliances, and reducing the electrical energy consumption of refrigerators has become an essential measure to deal with global warming. When the amount of loading inside the refrigerator is constant, since the power consumption of the refrigerator depends largely on the efficiency of the compressor used for cooling in the refrigerator, and the insulation performance of the heat insulating material related to the heat leaked from the refrigerator, so, Improving the efficiency of compressors in refrigerators, as well as improving the performance of insulation materia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25D23/06F16L59/06B32B37/06
CPCB32B17/02F16L59/04F16L59/065F25D23/064F25D23/065F25D2201/126F25D2201/14Y02B40/00
Inventor 越后屋恒荒木邦成福田克美
Owner HITACHI APPLIANCES INC
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