Flexible vacuum insulation panel

Abstract

The utility model discloses a flexible vacuum insulated panel which comprises a barrier bag, a flexible core material, a getter and a drying agent, the flexible core material is arranged in the barrier bag, and the flexible core material is an ethylene-propylene-diene monomer foaming rubber core material; the getter is arranged on the flexible core material and is positioned in the barrier bag; and the drying agent is arranged on the flexible core material and is positioned in the barrier bag. According to the flexible vacuum insulation panel, a traditional glass fiber felt core material is replaced by the ethylene-propylene-diene monomer foaming rubber core material, ethylene-propylene-diene monomer foaming rubber is a light material and has the advantages of being low in density, small in size and the like, and the ethylene-propylene-diene monomer foaming rubber has excellent elasticity and flexibility, so that the manufactured flexible vacuum insulation panel has excellent flexibility.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum insulation panels, in particular to a flexible vacuum insulation panel. Background Art

[0002] Vacuum insulation panel is a type of vacuum insulation material. It can effectively avoid heat transfer caused by air convection, thereby significantly reducing thermal conductivity. It is environmentally friendly, efficient and energy-saving, and is widely used in building insulation, refrigerators, freezers and refrigerated containers.

[0003] The vacuum insulation panel in the prior art is generally composed of a filling core material, a getter and a barrier film. During the production, the barrier film is first made into a barrier bag, and the filling core material and the getter are placed in the barrier bag, evacuated and then heat-sealed. Among them, the filling core material in the prior art is usually glass fiber felt, which, especially ultra-fine glass wool, has many advantages, such as high strength and low thermal conductivity. However, the vacuum insulation panel made of glass fiber felt core material has poor flexibility. Utility Model Content

[0004] Based on the above problems existing in the prior art, the purpose of the embodiments of the present application is to provide a flexible vacuum insulation panel, which has good flexibility by providing a flexible core material.

[0005] The technical solution adopted by the present application to solve its technical problems is: a flexible vacuum insulation panel, comprising a barrier bag, a flexible core material, a getter and a desiccant; the flexible core material is arranged in the barrier bag, and the flexible core material is an EPDM foam rubber core material; the getter is arranged on the flexible core material and is located in the barrier bag; the desiccant is arranged on the flexible core material and is located in the barrier bag.

[0006] Furthermore, the open porosity of the EPDM foam rubber core material is above 90%.

[0007] Furthermore, the open porosity of the EPDM foam rubber core material is above 95%.

[0008] Furthermore, the thickness of the flexible vacuum insulation panel is 0.5 mm-10 mm.

[0009] Furthermore, the thickness of the flexible vacuum insulation panel is 1 mm-5 mm.

[0010] Furthermore, the getter is calcium oxide and / or barium-lithium alloy.

[0011] Furthermore, the barrier bag is made of a barrier film, and the structure of the barrier film from outside to inside is a first NY layer, a first PET layer, an AL layer and a first PE layer.

[0012] Furthermore, the barrier bag is made of a barrier film, and the structure of the barrier film from outside to inside is a second NY layer, a third PET layer, an EVOH layer, a fourth PET layer and a second PE layer.

[0013] The technical solution adopted by the present application to solve its technical problems is: a flexible vacuum insulation panel, comprising a barrier bag, a flexible core material, a getter and a desiccant; the flexible core material is arranged in the barrier bag, and the flexible core material is a polyurethane foam sponge core material or a melamine sponge core material; the getter is arranged on the flexible core material and is located in the barrier bag; the desiccant is arranged on the flexible core material and is located in the barrier bag.

[0014] The beneficial effect of the present application is that during production, a getter is placed on the EPDM foam rubber core material, a desiccant is placed on the EPDM foam rubber core material, and then the EPDM foam rubber core material together with the getter and the desiccant are placed in a barrier bag, and then evacuated and heat-sealed to form the flexible vacuum insulation panel. The inventor replaced the traditional glass fiber felt core material with an EPDM foam rubber core material. The EPDM foam rubber has a special open-cell bubble structure and uniformly distributed honeycomb pores. The EPDM foam rubber is a lightweight material with the characteristics of low density and small volume. The EPDM foam rubber has good flame retardancy. At the same time, the EPDM foam rubber has excellent elasticity and flexibility, so that the manufactured flexible vacuum insulation panel has excellent softness. When the flexible vacuum insulation panel is bent, the barrier bag bends along with it, so that the flexible vacuum insulation panel can be used for the insulation of products with irregular shapes, such as electrical appliances; or the flexible vacuum insulation panel can be bent to form a groove, so that the pipeline can be placed in the groove to facilitate the layout of the pipeline; or the flexible vacuum insulation panel can be placed between two panels to reduce the thermal bridge phenomenon between the two panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the flexible vacuum insulation panel in this application;

[0016] Figure 2 is a cross-sectional view of the flexible vacuum insulation panel in this application;

[0017] Figure 3 is a cross-sectional view of the barrier bag in this application;

[0018] Figure 4 It is a cross-sectional view of another barrier bag in this application.

[0019] Description of Reference Numerals

[0020] Barrier bag 1, first NY layer 11, first PET layer 12, AL layer 13, first PE layer 14, second NY layer 15, third PET layer 16, EVOH layer 17, fourth PET layer 18, second PE layer 19, flexible core material 2, getter 3, desiccant 4. DETAILED DESCRIPTION

[0021] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0022] like Figures 1 to 4 As shown, a flexible vacuum insulation panel of the utility model comprises a barrier bag 1, a flexible core material 2, a getter 3 and a desiccant 4; the flexible core material 2 is arranged in the barrier bag 1, and the flexible core material 2 is an EPDM foam rubber core material; the getter 3 is arranged on the flexible core material 2 and is located in the barrier bag 1; the desiccant 4 is arranged on the flexible core material 2 and is located in the barrier bag 1.

[0023] Thus, the flexible vacuum insulation panel involved in the utility model is manufactured by placing the getter 3 on the EPDM foam rubber core material, placing the desiccant 4 on the EPDM foam rubber core material, and then placing the EPDM foam rubber core material together with the getter 3 and the desiccant 4 in a barrier bag 1, evacuating the bag and heat-sealing the bag to manufacture the flexible vacuum insulation panel.

[0024] The inventor replaced the traditional glass fiber felt core material with EPDM foam rubber core material. EPDM foam rubber has a special open-cell bubble structure and uniformly distributed honeycomb pores. EPDM foam rubber is a lightweight material with low density and small volume. EPDM foam rubber has good flame retardancy. At the same time, EPDM foam rubber has excellent elasticity and flexibility, so that the manufactured flexible vacuum insulation board has excellent softness. When the flexible vacuum insulation board is bent, the barrier bag 1 is bent together, so that the flexible vacuum insulation board can be applied to the insulation of irregular-shaped products, such as electrical appliances; or the flexible vacuum insulation board can be bent to form a groove, so that the pipeline can be placed in the groove to facilitate the layout of the pipeline; or the flexible vacuum insulation board can be placed between two boards to reduce the thermal bridge phenomenon between the two boards.

[0025] Optionally, the porosity of the EPDM foam rubber core material is above 90%, and preferably, the porosity of the EPDM foam rubber core material is above 95%. The inventor has tested that when the porosity of the EPDM foam rubber core material is above 90%, the overall softness of the flexible vacuum insulation panel is good, and the thermal insulation effect is good. Specifically, the porosity of the EPDM foam rubber core material can be 96.31, 96.32 or 95.01.

[0026] In this embodiment, the thickness of the flexible vacuum insulation panel is 0.5mm-10mm, specifically, the thickness of the flexible vacuum insulation panel is 1mm-5mm. When making the flexible vacuum insulation panel, the 5mm-100mm EPDM foam rubber core material can be compressed, and the compression ratio can reach about 10:1, so that the thickness of the compressed EPDM foam rubber core material is about 0.5mm-10mm, so that after the flexible vacuum insulation panel is made, the thickness of the flexible vacuum insulation panel is 0.5mm-10mm. According to the application scenario of the flexible vacuum insulation panel, a flexible vacuum insulation panel of appropriate thickness is selected for reasonable application.

[0027] In this embodiment, the getter 3 is calcium oxide and / or barium-lithium alloy. By providing the getter 3, the getter 3 in the flexible vacuum insulation panel can absorb the residual gas, thereby further improving the insulation effect.

[0028] In some embodiments, the barrier bag 1 is made of a barrier film, and the barrier film has a structure from outside to inside that is a first NY layer 11, a first PET layer 12, an AL layer 13, and a first PE layer 14. That is, the barrier film has a structure from outside to inside that is a nylon layer, a polyethylene terephthalate layer, an aluminum foil layer, and a polyethylene layer, so that the barrier film has excellent barrier and gas barrier properties, and the first PE layer 14 is provided to facilitate heat sealing.

[0029] In other embodiments, the barrier bag 1 is made of a barrier film, and the structure of the barrier film from outside to inside is the second NY layer 15, the third PET layer 16, the EVOH layer 17, the fourth PET layer 18 and the second PE layer 19. That is to say, the structure of the barrier film from outside to inside is the nylon layer, the first polyethylene terephthalate layer, the ethylene-vinyl alcohol copolymer layer, the second polyethylene terephthalate layer and the polyethylene layer, so that the barrier film has good barrier and gas barrier properties, and the second PE layer 19 is provided to facilitate heat sealing. In this example, no aluminum foil layer is provided, which further improves the flexibility of the flexible vacuum insulation panel.

[0030] The present application also discloses another flexible vacuum insulation panel, comprising a barrier bag 1, a flexible core material 2, a getter 3 and a desiccant 4; the flexible core material 2 is arranged in the barrier bag 1, wherein the flexible core material 2 is a polyurethane foam sponge core material or a melamine sponge core material; the getter 3 is arranged on the flexible core material 2 and is located in the barrier bag 1; the desiccant 4 is arranged on the flexible core material 2 and is located in the barrier bag 1.

[0031] During the production, the getter 3 is placed on the polyurethane foam sponge core material or the melamine sponge core material, the desiccant 4 is placed on the polyurethane foam sponge core material or the melamine sponge core material, and then the polyurethane foam sponge core material or the melamine sponge core material together with the getter 3 and the desiccant 4 are placed in the barrier bag 1, which is evacuated and heat-sealed to make the flexible vacuum insulation board.

[0032] The inventors replaced the traditional glass fiber felt core material with a polyurethane foam sponge core material or a melamine sponge core material. The polyurethane foam sponge core material or the melamine sponge core material also has excellent elasticity and flexibility, so that the manufactured flexible vacuum insulation panel has excellent softness. When the flexible vacuum insulation panel is bent, the barrier bag 1 is bent along with it, so that the flexible vacuum insulation panel can be applied to the insulation of products with irregular shapes, such as electrical appliances; or the flexible vacuum insulation panel can be bent to form a groove, so that the pipeline can be placed in the groove to facilitate the layout of the pipeline; or the flexible vacuum insulation panel can be placed between two boards to reduce the thermal bridge phenomenon between the two boards.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A flexible vacuum insulation panel, characterized in that: It includes a barrier bag, a flexible core material, a getter and a desiccant; the flexible core material is arranged in the barrier bag, and the flexible core material is an EPDM foam rubber core material; the getter is arranged on the flexible core material and is located in the barrier bag; the desiccant is arranged on the flexible core material and is located in the barrier bag.

2. The flexible vacuum insulation panel according to claim 1, characterized in that: The open porosity of the EPDM foam rubber core material is above 90%.

3. The flexible vacuum insulation panel according to claim 2, characterized in that: The open porosity of the EPDM foam rubber core material is above 95%.

4. The flexible vacuum insulation panel according to claim 1, characterized in that: The thickness of the flexible vacuum insulation panel is 0.5 mm-10 mm.

5. The flexible vacuum insulation panel according to claim 4, characterized in that: The thickness of the flexible vacuum insulation panel is 1 mm-5 mm.

6. The flexible vacuum insulation panel according to claim 1, characterized in that: The getter is calcium oxide and / or barium-lithium alloy.

7. The flexible vacuum insulation panel according to claim 1, characterized in that: The barrier bag is made of a barrier film, and the structure of the barrier film from outside to inside is a first NY layer, a first PET layer, an AL layer and a first PE layer.

8. The flexible vacuum insulation panel according to claim 1, characterized in that: The barrier bag is made of a barrier film, and the structure of the barrier film from outside to inside is a second NY layer, a third PET layer, an EVOH layer, a fourth PET layer and a second PE layer.

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