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Vacuum heat insulating material and machine using the same vacuum heat insulation material

A technology of vacuum insulation materials and machines, which can be used in mechanical equipment, thin material processing, heat exchange equipment, etc., and can solve problems such as insufficient

Inactive Publication Date: 2005-02-09
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in order to achieve high thermal insulation around 150°C, it is necessary to suppress the conduction of radiant heat, and these conventional configurations are not sufficient for this purpose.

Method used

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  • Vacuum heat insulating material and machine using the same vacuum heat insulation material
  • Vacuum heat insulating material and machine using the same vacuum heat insulation material
  • Vacuum heat insulating material and machine using the same vacuum heat insulation material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0025] First, the formation of the radiant heat conduction suppressing portion 4 with a coating film containing an infrared reflection component will be described. Hereinafter, regarding samples 1 to 4, various coating films were formed as radiant heat conduction suppressing portions 4 on the surface of the outer covering material 3 of the vacuum heat insulating material main body 1A. In addition, the heat insulating performance of the vacuum heat insulating material 1 was evaluated by measuring the temperature of the surface on the low temperature side when heat of 150° C. was applied to the surface on the high temperature side using a halogen heater.

[0026] Sample 1 contains a leafing aluminum flake pigment which is a metal powder as an infrared reflection component, and forms a coating film containing an epoxy resin as a resin component. Sample 2 contained a leafing type aluminum flake pigment in the same manner as Sample 1, and formed a coating film of polychlorotrifluor...

Embodiment approach 2

[0039] Next, the formation of the radiant heat suppressing portion 4 using a laminate of inorganic material thin films having different refractive indices will be described. Basic configuration of vacuum insulation material and the first embodiment figure 1 , 2 same.

[0040] image 3 It is a sectional view of the radiation heat conduction suppressing part 4 in this embodiment. The radiant heat conduction suppressing portion 4 in this embodiment is a radiant heat suppressing film in which four first inorganic thin films 11 made of magnesium fluoride and second inorganic thin films 12 made of calcium fluoride and having different refractive indices are alternately laminated in four layers. .

[0041] When inorganic material thin films with different refractive indices are alternately laminated with a thickness of 1 / 4 of a specific wavelength, the reflection wavefronts from the boundary surfaces of each layer overlap additively, and far-infrared rays are reflected wavelength...

Embodiment approach 3

[0048] Next, the formation of the radiative heat conduction suppressing portion 4 using a metal thin film will be described. Basic configuration of vacuum insulation material and the first embodiment figure 1 , figure 2 same.

[0049] In this embodiment, the metal thin film forming the radiant heat conduction suppressing portion 4 is a thinned metal foil or a laminated foil metal thin film. or as Figure 4 As shown in the cross-sectional view of the resin substrate 14, it includes a thin-layered metal film 13 or a laminate thereof formed on the surface of the resin substrate 14 by evaporation, sputtering, electrolytic deposition, etc., or is composed of an inorganic substance or a semiconductor. A laminate in which the thin layers are stacked together.

[0050] Figure 5 It is a characteristic diagram showing the relationship between black body radiation energy and wavelength at 150°C, Image 6 It is a characteristic diagram showing the reflectance when light is project...

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Abstract

A radiation heat transfer suppressor for inhibiting heat transfer by infrared rays is provided on the external surface of the enveloping member of a vacuum heat insulator. In heat-blocking or keep warm using a vacuum heat insulator, a surface having a radiation heat transfer suppressor is faced to a high-temperature side. Thus, the vacuum heat insulator exhibits excellent heat-insulating performance in a temperature range of 150 DEG C or higher.

Description

technical field [0001] The present invention relates to a vacuum heat insulating material and a machine using the vacuum heat insulating material. In particular, it is related to heat insulation and heat preservation of printing equipment such as copiers and laser printers, electronic equipment such as computers, and hot water supply machines, especially equipment with high temperature parts. Background technique [0002] In recent years, from the importance of preventing global warming as an environmental problem, energy saving has been desired, and energy saving has been promoted in various fields. With regard to general equipment and housing-related components that use heat and cold, from the viewpoint of effective use of heat, it is required to use heat insulating members that have excellent thermal insulation performance in the low-to-medium temperature range from -30°C to less than 150°C. On the other hand, office machines such as computers, printing apparatuses, copi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L59/065
CPCF16L59/08F16L59/065Y10T428/1352Y10T428/13
Inventor 汤浅明子小岛真弥
Owner PANASONIC CORP
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