A vacuum insulation body

Abstract

The utility model discloses a vacuum heat insulator, including first barrier piece, second barrier piece, core material and sealing element, the edge of first barrier piece and the edge of second barrier piece seal connection together, be provided with exhaust port on first barrier piece and / or second barrier piece, form vacuum cavity between first barrier piece and second barrier piece, the core material sets up in this vacuum cavity, sealing element sets up in this vacuum cavity, one side of sealing element leans on the core material, the other side of sealing element seals the inside of first barrier piece and / or second barrier piece and sets up to cover exhaust port. The utility model provides a kind of vacuum heat insulator, which is provided with sealing element in barrier piece, sealing element is provided with inside of barrier piece and covers exhaust port, so that sealing element can effectively seal exhaust port, the sealing process is relatively simple, and the surface of vacuum heat insulator is relatively flat after sealing.

Description

Technical Field

[0001] This utility model relates to the field of vacuum insulation technology, and in particular to a vacuum insulation body. Background Technology

[0002] Vacuum insulation panels are a type of vacuum insulation material. They use a vacuum method to remove the gas remaining in the insulation space, thereby eliminating various heat transfer paths caused by the gas and maximizing the internal vacuum level to isolate heat conduction. This can significantly reduce the thermal conductivity and has the characteristics of high efficiency and energy saving. It is one of the most advanced high-efficiency insulation materials in the world.

[0003] Vacuum insulation panels typically include a barrier element, a core material, and an adsorbent. A vacuum cavity is formed within the barrier element, and the core material and adsorbent are disposed within the vacuum cavity of the barrier element. To facilitate vacuuming, existing vacuum insulation materials have an exhaust port on the barrier element to allow gas to be extracted from the barrier element. For example, patent document JP6912715B2 discloses a vacuum insulation material with an exhaust port for vacuuming. After vacuuming is completed, the exhaust port needs to be sealed. Existing technology uses brazing material to seal the exhaust port. The process of sealing the exhaust port with brazing material is relatively cumbersome, and after sealing, the brazing material may protrude from the surface of the barrier element, thus affecting the use of the vacuum insulation material. Summary of the Invention

[0004] Based on the above-mentioned problems existing in the prior art, the purpose of this application embodiment is to provide a vacuum insulation body, which provides a sealing element. The sealing element is located inside the barrier and covers the exhaust port, so that the sealing element can effectively seal the exhaust port. The sealing process is relatively simple, and the surface of the vacuum insulation body is relatively flat after sealing.

[0005] The technical solution adopted by this application to solve its technical problem is: a vacuum insulation body, including a first barrier, a second barrier, a core material and a sealing member, wherein the edges of the first barrier and the second barrier are sealed together, an exhaust port is provided on the first barrier and / or the second barrier, a vacuum cavity is formed between the first barrier and the second barrier, the core material is disposed in the vacuum cavity, the sealing member is disposed in the vacuum cavity, one side of the sealing member abuts against the core material, and the other side of the sealing member is sealed inside the first barrier and / or the second barrier to cover the exhaust port.

[0006] Furthermore, the edges of the first barrier and the edges of the second barrier are welded and / or heat-sealed together.

[0007] Furthermore, the first barrier is a barrier film, and the second barrier is a barrier bottom shell.

[0008] Furthermore, the first barrier is a metal barrier film, and the second barrier is a metal barrier base shell.

[0009] Furthermore, the first barrier is a barrier inner liner, and the second barrier is a barrier door body.

[0010] Furthermore, it also includes an adsorbent disposed within a vacuum cavity formed between the first barrier and the second barrier.

[0011] Furthermore, the sealing element is a barrier sealing film.

[0012] Furthermore, the edge of the barrier sealing film is disposed on the inner side of the first barrier and / or the second barrier by means of an adhesive.

[0013] Furthermore, the adhesive is a high-temperature resistant adhesive.

[0014] Furthermore, the edge of the barrier sealing film is welded to the inside of the first barrier and / or the second barrier.

[0015] The beneficial effects of this application are as follows: During manufacturing, the sealing element is placed inside the first and / or second barrier elements, positioning it at the exhaust port. When the sealing element is not sealed to the first and / or second barrier elements, a gap exists between the sealing element and the first and / or second barrier elements. Thus, during vacuuming, gas between the first and second barrier elements can be extracted from the exhaust port through this gap. Finally, the sealing element is sealed to the inside of the first and / or second barrier elements, sealing the exhaust port and preventing external gas from entering the vacuum cavity formed by the first and second barrier elements. Compared with the prior art, this invention, by placing the sealing element inside the barrier elements and covering the exhaust port, results in a smoother surface of the finished vacuum insulation body. Furthermore, after manufacturing, atmospheric pressure allows the barrier elements to be tightly pressed onto the sealing element, resulting in a better sealing effect between the sealing element and the barrier elements. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the vacuum insulation body in this application; Figure 2 This is a cross-sectional view of the vacuum insulation body in this application; Figure 3 This is an exploded view of the vacuum insulation body in this application.

[0017] Explanation of reference numerals in the attached figures First barrier 1, barrier membrane 11, barrier inner liner 12, second barrier 2, barrier bottom shell 21, barrier door 22, core material 3, sealing element 4, exhaust port 5, adsorbent 6, adhesive 7. Detailed Implementation

[0018] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] like Figures 1 to 3 As shown, a vacuum insulation body of this utility model includes a first barrier 1, a second barrier 2, a core material 3, and a sealing member 4. The edges of the first barrier 1 and the second barrier 2 are sealed together. An exhaust port 5 is provided on the first barrier 1 and / or the second barrier 2. A vacuum cavity is formed between the first barrier 1 and the second barrier 2. The core material 3 is disposed in the vacuum cavity. The sealing member 4 is disposed in the vacuum cavity. One side of the sealing member 4 abuts against the core material 3, and the other side of the sealing member 4 is sealed inside the first barrier 1 and / or the second barrier 2 to cover the exhaust port 5.

[0020] Thus, in the vacuum insulation body disclosed in this utility model, during manufacturing, the sealing element 4 is placed inside the first barrier element 1 and / or the second barrier element 2, such that the sealing element 4 is located at the exhaust port 5. When the sealing element 4 is not sealed to the first barrier element 1 and / or the second barrier element 2, a gap exists between the sealing element 4 and the first barrier element 1 and / or the second barrier element 2. Therefore, during vacuuming, gas between the first barrier element 1 and the second barrier element 2 can be extracted from the exhaust port 5 through this gap. Finally, the sealing element 4 is sealed to the inside of the first barrier element 1 and / or the second barrier element 2, thereby sealing the exhaust port 5 and preventing external gas from entering the vacuum cavity formed by the first barrier element 1 and the second barrier element 2 through the exhaust port 5. Compared with the prior art, this utility model, by placing the sealing element 4 inside the barrier element and covering the exhaust port 5, results in a smoother surface of the finished vacuum insulation body. Furthermore, once manufactured, under atmospheric pressure, the barrier component can be pressed tightly onto the seal component 4, resulting in a better sealing effect between the seal component 4 and the barrier component.

[0021] Optionally, the edges of the first barrier 1 and the second barrier 2 are welded and / or heat-sealed together. Depending on the materials of the first barrier 1 and the second barrier 2, the edges of the first barrier 1 and the second barrier 2 can be sealed together by welding, by heat sealing, or by a combination of welding and heat sealing.

[0022] like Figure 2As shown, in this embodiment, the first barrier 1 is a barrier membrane 11, and the second barrier 2 is a barrier base shell 21. That is, the vacuum insulation body in this embodiment is a shell-type vacuum insulation panel. Specifically, the first barrier 1 is a metal barrier membrane 11, and the second barrier 2 is a metal barrier base shell 21. The metal barrier membrane 11 and the metal barrier base shell 21, both made of metal, have high-temperature resistance. The edges of the metal barrier membrane 11 and the edges of the metal barrier base shell 21 can be firmly sealed together by welding, resulting in a vacuum insulation panel with high-temperature resistance.

[0023] like Figure 3 As shown, in another embodiment, the first barrier 1 is the barrier inner liner 12, and the second barrier 2 is the barrier door 22. That is to say, the vacuum insulation body in this embodiment can be the refrigerator door, and the refrigerator door made therefrom has excellent barrier performance.

[0024] Furthermore, it also includes an adsorbent 6, which is disposed in the vacuum cavity formed between the first barrier 1 and the second barrier 2. By disposing of the adsorbent 6, the residual gas in the core material 3 can be effectively adsorbed, so that the vacuum insulation body maintains excellent thermal insulation performance.

[0025] In this embodiment, the sealing element 4 is a barrier sealing film. The barrier sealing film is in the shape of a thin sheet. After the barrier sealing film is sealed and connected to the barrier element, the surface of the vacuum insulation body is not easy to bulge, and the surface of the vacuum insulation body is relatively flat.

[0026] In one embodiment of this utility model, the edge of the barrier sealing film is disposed on the inner side of the first barrier 1 and / or the second barrier 2 by an adhesive 7, such as a high-temperature resistant adhesive. During manufacturing, the adhesive 7 is applied to the edge of the barrier sealing film, and there is a gap between the adhesive 7 and the inner side of the barrier, so that the gas between the first barrier 1 and the second barrier 2 can be extracted from the exhaust port 5 through the gap. After the vacuum is completed, the barrier is heated by pressure, causing the adhesive 7 to melt, thereby making the barrier sealing film 11 firmly sealed and connected to the barrier.

[0027] In another embodiment of this utility model, the edge of the barrier sealing film is welded to the inner side of the first barrier 1 and / or the second barrier 2. The barrier sealing film is a metal barrier film, and the first barrier 1 and the second barrier 2 are metal barriers, which facilitates the welding of the barrier sealing film to the inner side of the first barrier 1 and / or the second barrier 2. After welding, the sealing performance is good.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A vacuum insulation body, characterized in that: The device includes a first barrier, a second barrier, a core material, and a seal. The edges of the first barrier and the second barrier are sealed together. An exhaust port is provided on the first barrier and / or the second barrier. A vacuum cavity is formed between the first barrier and the second barrier. The core material is disposed in the vacuum cavity. The seal is disposed in the vacuum cavity. One side of the seal abuts against the core material, and the other side of the seal is sealed inside the first barrier and / or the second barrier to cover the exhaust port.

2. The vacuum insulation body as described in claim 1, characterized in that: The edges of the first barrier and the edges of the second barrier are welded and / or heat-sealed together.

3. The vacuum insulation body as described in claim 1, characterized in that: The first barrier is a barrier film, and the second barrier is a barrier bottom shell.

4. The vacuum insulation body as described in claim 1, characterized in that: The first barrier is a metal barrier film, and the second barrier is a metal barrier base shell.

5. The vacuum insulation body as described in claim 1, characterized in that: The first barrier is an inner liner barrier, and the second barrier is a door barrier.

6. The vacuum insulation body as described in claim 1, characterized in that: It also includes an adsorbent disposed within a vacuum cavity formed between the first barrier and the second barrier.

7. The vacuum insulation body as described in claim 1, characterized in that: The sealing element is a barrier sealing membrane.

8. The vacuum insulation body as described in claim 7, characterized in that: The edge of the barrier sealing film is set inside the first barrier and / or the second barrier by an adhesive.

9. The vacuum insulation body as described in claim 8, characterized in that: The adhesive is a high-temperature resistant adhesive.

10. The vacuum insulation body as described in claim 7, characterized in that: The edge of the barrier sealing film is welded to the inside of the first barrier and / or the second barrier.

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