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Vacuum heat insulating material, equipment having the vacuum heat insulating material, and manufacturing method thereof

A technology of vacuum heat insulation material and manufacturing method, which is applied in heat exchange equipment, lighting and heating equipment, mechanical equipment, etc., and can solve the problem of difficult arrangement of glass fibers, limited heat insulation performance of vacuum heat insulation materials, and difficulty in preventing heat insulation performance from declining etc. to achieve the effect of suppressing hydrocarbon gas

Inactive Publication Date: 2016-09-07
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] In addition, even as described in Japanese Patent Laid-Open Publication No. 2006-17169 (Patent Document 2), glass wool is extruded so that the density of the core material containing 75% or more of glass fibers with a fiber length of 100 μm or more becomes 200 to 200 μm. 270kg / m 3 , it is also difficult to align most glass fibers
[0016] Therefore, it is difficult for the core material of the vacuum heat insulating material described in the above-mentioned gazette to prevent the deterioration of the heat insulating performance due to the heat conduction between the fibers.
Therefore, the thermal conductivity of the obtained vacuum insulation material is about 2mW / m·K, so it is limited to improve the thermal insulation performance of the vacuum insulation material by using the previous improvement method
[0017] In addition, like the vacuum heat insulating material described in Japanese Patent Laid-Open Publication No. 2004-36749 (Patent Document 3) and the vacuum heat insulating material described in Japanese Patent Publication No. 3482408 (Patent Document 4), the generation of the outer covering material is suppressed. In the past improvement methods of air bubbles, there is a limit to improving the thermal insulation performance of vacuum insulation materials

Method used

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  • Vacuum heat insulating material, equipment having the vacuum heat insulating material, and manufacturing method thereof
  • Vacuum heat insulating material, equipment having the vacuum heat insulating material, and manufacturing method thereof
  • Vacuum heat insulating material, equipment having the vacuum heat insulating material, and manufacturing method thereof

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no. 1 approach

[0071] figure 1 It is a cross-sectional view schematically showing the structure of the vacuum heat insulating material according to the first embodiment of the present invention. figure 1 (A) represents the state before depressurizing the inside of the sheathing material, figure 1 (B) shows the state when the inside of the sheathing material is decompressed.

[0072] Such as figure 1 As shown, in the vacuum heat insulating material 1, the core material 100 is accommodated in the inside of the cover material 200 which has gas barrier property and is formed in the bag shape of a rectangular parallelepiped. Before filling the core material 100 into the outer cover material 200, three sides of the outer cover material 200 are thermally welded. As will be described later, after the core material 100 is filled, the heat fusion welding part 300 on the remaining side is heat welded in a reduced pressure state.

[0073] Such as figure 1 As shown in (A), the core material 100...

no. 2 approach

[0152] Figure 8 (A) is a side sectional view which shows the whole refrigerator which concerns on 2nd Embodiment of this invention, (B) is a front view which shows a refrigerator casing.

[0153] Figure 8 As shown in (A), the refrigerator 3 includes an outer case 301 , an inner case 302 , a door 303 , a partition 304 , a machine room 306 in which a compressor 305 is arranged, a cooling unit 307 and a vacuum insulation material 320 . The outer box 301 and the inner box 302 form an outer casing 308 of the refrigerator 3 . The casing 308 is formed in a substantially rectangular parallelepiped shape with one side open. The opening of the casing 308 is opened and closed by the door 303 . The inside of the housing 308 is divided into a plurality of chambers by the partition 304 . In the present embodiment, the inside of the casing 308 is divided into, for example, a refrigerator compartment 311 , an ice maker compartment 312 , an ice storage compartment 313 , a freezer compart...

no. 3 approach

[0162] Figure 9 It is a side sectional view which shows the whole water heater which concerns on 3rd Embodiment of this invention.

[0163] Such as Figure 9 As shown, a vacuum heat insulating material 430 is arranged inside the lid body 410 of the water heater (jug) 4 and between the hot water storage container 422 and the outer container 421 . The vacuum heat insulating material 430 is the vacuum heat insulating material of the first embodiment. The member forming the upper surface 411 of the cover 410 and the outer container 421 are an example of an outer case, and the member forming the lower surface 412 of the cover 410 and the hot water storage container 422 are an example of an inner case. In addition, the arrangement|positioning position of the vacuum heat insulating material 430 is an example. The vacuum heat insulating material 430 may also be arranged in other positions.

[0164] In this water heater 4, water is stored in a hot water storage tank 422, and the w...

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Abstract

Provided is a vacuum insulation material which is capable of overcoming the limitation of being unable to improve the performance of insulation materials in general, and which has high insulation performance; an apparatus comprising same; and a method for manufacturing same. A vacuum insulation material (1) comprises outer packing members (200), and a core member (100) which is accommodated by the outer packing member (200). The outer packing member (200) comprises a heat welding unit (300) in which the outer packing members (200) come into contact with each other and are heat-welded to surround an outer periphery of the core member (100). A portion of the heat welding unit (300) comprises: an inner side heat welding portion (380) at which the outer packing members (200) are heat-welded with each other in a portion of an area that surrounds the outer periphery of the core member (100); and an outer side heat welding portion (390) at which the outer packing members (200) are heat-welded with each other at a position farther from the core member (100) than the inner side heat welding portion (380). A width (W39) of the outer side heat welding portion (390) is greater than a width (W38) of the inner side heat welding portion (380).

Description

technical field [0001] The present invention relates to a vacuum heat insulating material, a device having the vacuum heat insulating material, and a manufacturing method thereof. Background technique [0002] In the past, it was used in refrigerators, cooling boxes, incubators, etc. used to heat, cool, and keep warm various foods, and in dryers that blow hot air to dry objects to dry objects. Thermal insulation materials with various structures and properties. Among heat insulating materials, vacuum heat insulating materials are excellent in heat insulating performance, so vacuum heat insulating materials are widely used in appliances such as household refrigerators that require heat insulation. Generally, a vacuum heat insulating material can be obtained by filling the inside of the cover material with a core material made of an inorganic material, sealing the cover material, and keeping the inside of the cover material in a depressurized state. [0003] Among the inorga...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L59/06
CPCB32B27/32B32B5/022B32B5/026B32B5/12B32B27/08B32B27/306B32B27/36B32B2260/023B32B2260/046B32B2262/101B32B2307/304B32B2307/31B32B2307/7242B32B2509/00F25D23/06F25D2201/14
Inventor 内田武大堀进一
Owner SHARP KK