CN210424196U

CN210424196U - Vacuum heat-insulating plate

Info

Publication number: CN210424196U
Application number: CN201921106064.4U
Authority: CN
Inventors: 谢振刚; 马顺梅
Original assignee: FUJIAN SUPERTECH ADVANCED MATERIAL CO LTD
Current assignee: FUJIAN SUPERTECH ADVANCED MATERIAL CO LTD
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-04-28
Anticipated expiration: 2029-07-15

Abstract

The utility model provides a vacuum insulation panel, include: core material and barrier bag; the core material is placed in the barrier bag; and a composite film for increasing the mechanical strength of the barrier bag is further arranged between the outer surface of the core material and the inner surface of the barrier bag, and one surface of the composite film, facing the barrier bag, is fused with the heat sealing layer on the inner surface of the barrier bag. The vacuum insulation panel can reduce the air leakage problem of the barrier bag, thereby prolonging the service life of the vacuum insulation panel.

Description

Vacuum heat-insulating plate

Technical Field

The utility model relates to a vacuum insulation panels field specifically indicates a vacuum insulation panels who increases separation bag mechanical strength.

Background

The vacuum insulation panel is a novel heat insulation material, the heat insulation core material and the getter are coated in the high-barrier bag and are manufactured by vacuumizing, the heat transfer caused by air convection is effectively avoided, the fiber framework structure effectively reduces heat conduction, the outer-layer high-barrier-property barrier bag extremely resists water and gas permeation, the light reflection property of the outer-layer high-barrier-property barrier bag can greatly reduce heat radiation, and the vacuum insulation panel has the characteristics of high efficiency and energy conservation. The energy-saving device is widely applied to the fields of refrigerators, heat insulation boxes, building walls, refrigerated containers and the like, plays a role in reducing energy consumption and improving economy, and has great development potential.

In order to achieve the maximum efficiency of the refrigerator and meet the requirements of consumers in recent years, various manufacturers research and develop ultra-thin wall refrigerators with large capacity and low energy consumption, and therefore various special-shaped vacuum insulation panels are designed. In the process of producing various special-shaped vacuum insulation panels, such as a groove pressing, the mechanical strength of the barrier bag is poor, the groove pressing has great damage to the barrier bag, the air leakage rate of the vacuum insulation panels is increased, and the service life of a refrigerator is shortened.

SUMMERY OF THE UTILITY MODEL

The invention aims to overcome the defects in the prior art and provide a vacuum insulation panel, which reduces the problem of air leakage of a barrier bag, thereby prolonging the service life of the vacuum insulation panel.

In order to solve the technical problem, the utility model provides a vacuum insulation panel, include: core material and barrier bag; the core material is placed in the barrier bag; and a composite film for increasing the mechanical strength of the barrier bag is further arranged between the outer surface of the core material and the inner surface of the barrier bag, and one surface of the composite film, facing the barrier bag, is fused with the heat sealing layer on the inner surface of the barrier bag.

In a preferred embodiment: the composite film is a polyethylene-aluminum foil composite film; the aluminum foil surface of the composite film faces the outer surface of the core material, and the polyethylene surface faces the inner surface of the barrier bag.

In a preferred embodiment: three sides of the separation bag are provided with sealed edges, and the other side of the separation bag is provided with an opening, so that the separation bag forms a cavity for containing the core material.

In a preferred embodiment: the composite film has the same area as or smaller than the area of the core material.

In a preferred embodiment: the composite film covers more than 90% of the surface area of the core material, and the thickness of the composite film is 5-15 um.

In a preferred embodiment: and a getter is arranged in the barrier bag.

In a preferred embodiment: the composite film is closely attached between the core material and the barrier tape.

Compared with the prior art, the technical scheme of the utility model possess following beneficial effect:

the utility model provides a pair of vacuum insulation panels increases a polyethylene-aluminium foil complex film between core surface and separation bag, and the aluminium foil face is towards the core, and polyethylene is towards the separation bag, and modes such as toast polyethylene and separation bag heat-seal layer through hot pressing or high temperature fuse, increases the mechanical strength of separation bag, plays the guard action to special-shaped processes such as vacuum insulation panels indent to vacuum insulation panels's gas leakage rate has been reduced.

Drawings

Fig. 1 is a schematic view of a core material and a composite film according to a preferred embodiment of the present invention.

Detailed Description

The invention is further described with reference to the drawings and the detailed description.

Referring to fig. 1, a method for manufacturing a vacuum insulation panel includes a core material 1, a barrier bag; the core material 1 is placed in a barrier bag; a polyethylene-aluminum foil composite film 2 is also arranged between the outer surface of the core material 1 and the inner surface of the barrier bag; the aluminum foil surface of the composite film 2 faces the outer surface of the core material 1, and the polyethylene surface faces the inner surface of the barrier bag and is fused with the heat sealing layer on the inner surface of the barrier bag. In this embodiment, polyethylene-aluminum foil composite film 2 is used as an example, and other composite films can be used in actual production, so long as one side of the composite film can be fused with the barrier bag in a heat-sealing manner, and the mechanical strength of the other side is greater than that of the barrier bag, so that the purpose of increasing the mechanical strength of the barrier bag can be achieved, the barrier bag is protected, and the air leakage rate of the vacuum insulation panel is reduced.

Wherein the polyethylene surface is fused with the heat sealing layer through hot pressing or high-temperature baking, the fusion temperature is 110-150 ℃, and the time is 5-10 min.

In this embodiment, three sides of the barrier bag have sealed edges, and the other side of the barrier bag has an opening, so that the barrier bag forms a cavity for accommodating the core material 1. As a simple alternative to this embodiment, the barrier bag may be divided into an upper barrier film and a lower barrier film, the core material 1 is placed between the two barrier films, and the peripheries of the two barrier films are heat sealed together to form a complete heat-sealed edge.

The area of the polyethylene-aluminum foil composite film 2 is equal to or smaller than that of the core material 1. In this embodiment, the polyethylene-aluminum foil composite film 2 covers more than 90% of the surface area of the core material 1, and the thickness thereof is 5-15 um.

In order to prevent the core material 1 from generating organic outgassing during use or residual gas during vacuum pumping, a getter is arranged in the barrier bag. After the vacuumizing is finished, the polyethylene-aluminum foil composite film 2 is tightly attached between the core material 1 and the barrier belt.

According to the vacuum insulation panel, the polyethylene-aluminum foil composite film 2 is additionally arranged between the surface of the core material 1 and the barrier bag, the aluminum foil surface faces the core material 1, the polyethylene faces the barrier bag, the polyethylene and the heat sealing layer of the barrier bag are fused in a hot pressing or high-temperature baking mode, the mechanical strength of the barrier bag is increased, and the vacuum insulation panel plays a role in protecting special-shaped processes such as groove pressing and the like.

The above, only be the preferred embodiment of the present invention, but the design concept of the present invention is not limited to this, and any skilled person familiar with the technical field is in the technical scope disclosed in the present invention, and it is right to utilize this concept to perform insubstantial changes to the present invention, all belong to the act of infringing the protection scope of the present invention.

Claims

1. A vacuum insulation panel, comprising: core material and barrier bag; the core material is placed in the barrier bag; and a composite film for increasing the mechanical strength of the barrier bag is further arranged between the outer surface of the core material and the inner surface of the barrier bag, and one surface of the composite film, facing the barrier bag, is fused with the heat sealing layer on the inner surface of the barrier bag.

2. A vacuum insulation panel according to claim 1 wherein: the composite film is a polyethylene-aluminum foil composite film; the aluminum foil surface of the composite film faces the outer surface of the core material, and the polyethylene surface faces the inner surface of the barrier bag.

3. A vacuum insulation panel according to claim 1 or 2 wherein: three sides of the separation bag are provided with sealed edges, and the other side of the separation bag is provided with an opening, so that the separation bag forms a cavity for containing the core material.

4. A vacuum insulation panel according to claim 1 or 2 wherein: the composite film has the same area as or smaller than the area of the core material.

5. A vacuum insulation panel according to claim 1 or 2 wherein: the composite film covers more than 90% of the surface area of the core material, and the thickness of the composite film is 5-15 um.

6. A vacuum insulation panel according to claim 1 wherein: and a getter is arranged in the barrier bag.

7. A vacuum insulation panel according to claim 1 wherein: the composite film is closely attached between the core material and the barrier tape.