Novel vacuum heat insulation material

Abstract

The utility model relates to the field of materials, in particular to a novel vacuum heat insulation material which comprises a barrier film, arc edges, a vacuum heat insulation plate, a core material, a getter and a rectangular groove, the arc edges are arranged at the top corners of the outer side of the barrier film, the vacuum heat insulation plate is arranged between the barrier film and the rectangular groove, the core material is installed in the rectangular groove, and the getter is installed on the outer side of the core material. A multi-layer special film composite structure is designed, on one hand, the inner core material can be wrapped to isolate outside air, the vacuum degree is kept in the vacuum insulation plate, on the other hand, nitrogen, oxygen, water vapor and the like can be effectively prevented from permeating into the vacuum insulation plate through a barrier film, and meanwhile the effect of reducing heat conduction and heat radiation is achieved; and the getter is arranged on the outer side of the core material, so that gas generated by external permeation or internal material deflation can be adsorbed, the better vacuum degree in the vacuum heat insulation plate is ensured, the heat insulation performance of the vacuum heat insulation plate is maintained, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of materials, in particular to a novel vacuum thermal insulation material. Background Art

[0002] Vacuum insulation panels (VIP) are a new generation of high-performance insulation materials that have developed rapidly in recent years. The thermal conductivity of vacuum insulation panels can be as low as less than 1 / 10 of traditional insulation materials. A thin piece of vacuum insulation panel can be equivalent to the insulation effect of 10 cm of traditional insulation materials. As the technology of vacuum insulation panels becomes more mature and the cost gradually decreases, vacuum insulation panels have been gradually expanded from their initial application in high-end fields such as military industry, aerospace, etc. to commercial and civilian fields, showing excellent energy-saving and emission-reduction effects. Vacuum insulation panels not only play an important role in improving energy utilization efficiency, improving space utilization, and implementing energy-saving and emission-reduction goals, but also have great significance for solving food preservation and low-temperature medical problems, reflecting the results of scientific and technological development in improving people's livelihood, thereby improving people's quality of life. A Chinese patent discloses a vacuum insulation material with a low thermal bridge insulation core material (authorization announcement number CN 211251570 U), the innermost layer of the patented technology is a thermal insulation material, the middle layer is a vacuum insulation panel with grooves, the outermost layer is a stainless steel film material, the innermost layer is filled in the groove, the thermal insulation material is any one of a foam material, glass fiber wool felt, rock wool, and asbestos, the thermal insulation material is vacuum-encapsulated inside the film material, and a layer of nano-silicon dioxide flame-retardant film is provided between the outermost layer and the middle layer, which can effectively isolate the outside air and reduce the production cost by wrapping the innermost layer inside the middle layer. At the same time, a stainless steel layer is provided on the outermost layer to protect the vacuum insulation panel of the middle layer. However, the outermost layer structure of the design is single, and there is no multi-layer film composite structure, which cannot effectively reduce the problems of heat conduction and high-temperature heat radiation. Therefore, those skilled in the art provide a new type of vacuum insulation material to solve the problems raised in the above background technology. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a new type of vacuum insulation material, including a barrier film, an arc edge, a vacuum insulation panel, a core material, a getter and a rectangular groove. The barrier film is provided with an arc edge at the outer top corner, a vacuum insulation panel is provided between the barrier film and the rectangular groove, the core material is installed in the rectangular groove, and the getter is installed on the outside of the core material.

[0004] Preferably: the barrier film comprises a protective layer, a water vapor barrier layer, a gas barrier layer, a radiation protection layer and a heat sealing layer;

[0005] Preferably: a water vapor barrier layer is installed inside the protective layer;

[0006] Preferably: a gas barrier layer is installed inside the water vapor barrier layer;

[0007] Preferably: a radiation protection layer is installed inside the gas barrier layer;

[0008] Preferably: a heat sealing layer is installed inside the radiation protection layer;

[0009] Preferably: the core material is installed inside the rectangular groove;

[0010] Preferably: a getter is provided on the outside of the core material.

[0011] Technical effects and advantages of the utility model:

[0012] 1. Design a multi-layer special film composite structure to play the role of wrapping, isolating and preventing penetration. On the one hand, it can wrap the internal core material to isolate the outside air and keep the vacuum inside. On the other hand, it can effectively prevent nitrogen, oxygen and water vapor from penetrating into the vacuum insulation panel through the barrier film, and at the same time play the role of reducing heat conduction and heat radiation;

[0013] 2. The core material is installed inside the rectangular groove. The core material is a porous medium material, which can play a supporting role to prevent the vacuum insulation panel from shrinking and collapsing under internal vacuum conditions. At the same time, it can prevent heat radiation and reduce the occurrence of heat conduction;

[0014] 3. A getter is provided on the outside of the core material. The getter is made of a reasonable formula of metal particles with gas adsorption function. It can adsorb the gas generated by external penetration or internal material outgassing, ensure a better vacuum degree in the vacuum insulation panel, maintain the insulation performance of the vacuum insulation panel, and extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of a novel vacuum insulation material provided in an embodiment of the present application;

[0016] Figure 2 It is a right view structural schematic diagram of a novel vacuum insulation material provided in an embodiment of the present application;

[0017] Figure 3 This is a schematic diagram of a partial cross-sectional structure of a new type of vacuum insulation material provided in an embodiment of the present application. Figure 1 ;

[0018] Figure 4 This is a schematic diagram of a partial cross-sectional structure of a new type of vacuum insulation material provided in an embodiment of the present application. Figure 2 ;

[0019] Figure 5 It is a schematic diagram of a local explosion structure in a new type of vacuum insulation material provided in an embodiment of the present application.

[0020] In the figure: 1. barrier film; 2. vacuum insulation panel; 3. core material; 4. getter; 5. protective layer; 6. water vapor barrier layer; 7. gas barrier layer; 8. radiation protection layer; 9. heat sealing layer; 10. rectangular groove; 101. arc edge. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0022] Example

[0023] See also Figure 1 to Figure 5 In this embodiment, a novel vacuum insulation material is provided, comprising a barrier film 1, an arc edge 101, a vacuum insulation panel 2, a core material 3, a getter 4 and a rectangular groove 10, wherein the barrier film 1 is provided with an arc edge 101 at the outer top corner, a vacuum insulation panel 2 is provided between the barrier film 1 and the rectangular groove 10, the core material 3 is installed in the rectangular groove 10, and the getter 4 is installed outside the core material 3;

[0024] Specifically, the barrier film 1 includes a protective layer 5, a water vapor barrier layer 6, a gas barrier layer 7, a radiation protection layer 8 and a heat sealing layer 9;

[0025] A water vapor barrier layer 6 is installed inside the protective layer 5;

[0026] A gas barrier layer 7 is installed inside the water vapor barrier layer 6;

[0027] An anti-radiation layer 8 is installed inside the gas barrier layer 7;

[0028] A heat sealing layer 9 is installed inside the radiation protection layer 8;

[0029] The core material 3 is installed inside the rectangular groove 10. The core material 3 is a porous medium material, which can play a supporting role to prevent the vacuum insulation panel 2 from shrinking and collapsing under the internal vacuum condition, and can also prevent the occurrence of heat radiation and reduce the occurrence of heat conduction.

[0030] A getter 4 is provided on the outside of the core material 3. The getter 4 is made of a reasonable formula of metal particles with gas adsorption function. It can adsorb gas generated by external penetration or internal material outgassing, ensure a better vacuum degree in the vacuum insulation panel 2, maintain the insulation performance of the vacuum insulation panel 2, and extend the service life.

[0031] The working principle of the utility model is:

[0032] A water vapor barrier layer 6 is installed on the inside of the protective layer 5, a gas barrier layer 7 is installed on the inside of the water vapor barrier layer 6, an anti-radiation layer 8 is installed on the inside of the gas barrier layer 7, and a heat sealing layer 9 is installed on the inside of the anti-radiation layer 8. A multi-layer special film composite structure is designed to play the role of wrapping, isolating and preventing penetration. On the one hand, the internal core material 3 can be wrapped to isolate the outside air and keep the vacuum inside. On the other hand, nitrogen, oxygen and water vapor can be effectively prevented from penetrating into the vacuum insulation panel 2 through the barrier film 1, and at the same time, it plays the role of reducing heat conduction and heat radiation. The core material 3 is installed on the inside of the rectangular groove 10. Since the material is porous and the contact area is small, the heat transfer caused by heat conduction can be effectively reduced. A getter 4 is provided on the outside of the core material 3. The getter 4 is made of a reasonable formula of metal particles with the function of adsorbing gas, and can adsorb gases generated by external penetration or internal material degassing, thereby ensuring a better vacuum degree in the vacuum insulation panel 2, maintaining the thermal insulation performance of the vacuum insulation panel 2, and extending the service life.

[0033] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A new type of vacuum insulation material, characterized in that: The invention comprises a barrier film (1), an arc edge (101), a vacuum insulation panel (2), a core material (3), a getter (4) and a rectangular groove (10); the arc edge (101) is provided at the outer top corner of the barrier film; a vacuum insulation panel (2) is provided between the barrier film (1) and the rectangular groove (10); the core material (3) is installed in the rectangular groove (10); the getter (4) is installed outside the core material (3); the barrier film (1) comprises a protective layer (5), a water vapor barrier layer (6), a gas barrier layer (7), a radiation protection layer (8) and a heat sealing layer (9).

2. A novel vacuum insulation material according to claim 1, characterized in that: A water vapor barrier layer (6) is installed inside the protective layer (5).

3. A novel vacuum insulation material according to claim 2, characterized in that: A gas barrier layer (7) is installed inside the water vapor barrier layer (6).

4. A novel vacuum insulation material according to claim 3, characterized in that: A radiation protection layer (8) is installed inside the gas barrier layer (7).

5. A novel vacuum insulation material according to claim 4, characterized in that: A heat sealing layer (9) is installed inside the radiation protection layer (8).

6. A novel vacuum insulation material according to claim 1, characterized in that: The core material (3) is installed inside the rectangular groove (10).

7. A novel vacuum insulation material according to claim 6, characterized in that: A getter (4) is provided on the outside of the core material (3).

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