Vacuum heat insulation plate composite structure for deep hypothermia heat insulation

Abstract

The utility model discloses a vacuum insulation board composite structure for deep hypothermia insulation, which comprises a common vacuum insulation board, a polyurethane foaming board and a metal vacuum insulation board, one side of the polyurethane foaming board is fixedly connected onto the common vacuum insulation board, the thickness ratio of the polyurethane foaming board to the common vacuum insulation board is (1-1.5): 1, and the metal vacuum insulation board is fixedly connected onto the common vacuum insulation board. The metal vacuum insulation panel is fixedly connected to the other face of the polyurethane foaming plate, and the thickness ratio of the metal vacuum insulation panel to the common vacuum insulation panel is (0.5-1): 1. The vacuum heat insulation plate composite structure is small in overall thickness, and the thickness of the deep hypothermia refrigerator is reduced under the condition that the vacuum heat insulation plate composite structure has the same heat insulation effect.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum insulation panels, and particularly relates to a vacuum insulation panel composite structure for cryogenic insulation. Background Art

[0002] With the development of fields such as biology, medicine, and materials, cryogenic refrigerators, as a kind of ultra-low temperature storage device, have become increasingly indispensable for industries such as scientific research and medicine.

[0003] Cryogenic technology is an important research direction in the current refrigeration technology field. The lower the temperature reached by freezing and the faster the freezing time, the shorter the time for food cells to pass through the ice crystal zone, and the fresher the food. For high-end medical refrigeration equipment such as vaccine refrigerators and blood storage boxes, a lower cryogenic temperature is required.

[0004] The insulation panel structure of existing cryogenic refrigerators usually includes a vacuum insulation panel and a polyurethane foam board. The polyurethane foam board is fixed on the side of the vacuum insulation panel. In order to make the cryogenic refrigerator have a good insulation effect, the thickness of the polyurethane foam board is very thick. As Figure 1 shown, the thickness of the vacuum insulation panel 10 in the prior art is 20 mm, while the thickness of the polyurethane foam board 20 is as high as 180 mm. The thickness of the polyurethane foam board 20 is nine times that of the vacuum insulation panel 10, resulting in a small volume of the cryogenic refrigerator. Summary of the Utility Model

[0005] Based on the above problems existing in the prior art, the purpose of the embodiments of the present application is to provide a vacuum insulation panel composite structure for cryogenic insulation, which has a small overall thickness and can reduce the thickness of the cryogenic refrigerator under the condition of the same insulation effect.

[0006] The technical solution adopted by the present application to solve its technical problems is: a vacuum insulation panel composite structure for cryogenic insulation, including a common vacuum insulation panel, a polyurethane foam board, and a metal vacuum insulation panel. One side of the polyurethane foam board is fixedly connected to the common vacuum insulation panel. The ratio of the thickness of the polyurethane foam board to the thickness of the common vacuum insulation panel is 1 - 1.5:1. The metal vacuum insulation panel is fixedly connected to the other side of the polyurethane foam board. The ratio of the thickness of the metal vacuum insulation panel to the thickness of the common vacuum insulation panel is 0.5 - 1:1.

[0007] Further, the common vacuum insulation panel includes a first core material, a first getter, a desiccant, and a barrier bag. The first core material is arranged in the barrier bag. The first getter is arranged on the core material and is located in the barrier bag. The desiccant is arranged on the first core material and is located in the barrier bag.

[0008] Further, the first core material is glass fiber or expanded perlite.

[0009] Further, a plurality of strip grooves are formed on one side of the barrier bag close to the polyurethane foam board, and convex strips inserted into the strip grooves are formed on one side of the polyurethane foam board close to the barrier bag.

[0010] Further, the metal vacuum insulation board includes a first stainless steel foil board, a second stainless steel foil board, a second core material and a second getter. The edge of the second stainless steel foil board is welded to the edge of the first stainless steel foil board. The second core material is disposed between the first stainless steel foil board and the second stainless steel foil board, and the second getter is disposed on the second core material and between the first stainless steel foil board and the second stainless steel foil board.

[0011] Further, the second core material is basalt or ceramic fiber.

[0012] Further, the second getter is zirconium vanadium iron.

[0013] Further, an upper connecting portion is formed at the upper end of the first stainless steel foil board, and the upper connecting portion is connected to the upper part of the polyurethane foam board. A lower connecting portion is formed at the lower end of the first stainless steel foil board, and the lower connecting portion is connected to the lower part of the polyurethane foam board.

[0014] Further, the thickness of the ordinary vacuum insulation board is 20 mm, the thickness of the polyurethane foam board is 30 mm, and the thickness of the metal vacuum insulation board is 15 mm.

[0015] The beneficial effects of the present application are as follows: When in use, the vacuum insulation board composite structure is installed in a deep low-temperature refrigerator. Since the ratio of the thickness of the polyurethane foam board to the thickness of the ordinary vacuum insulation board is 1 - 1.5:1, and the ratio of the thickness of the metal vacuum insulation board to the thickness of the ordinary vacuum insulation board is 0.5 - 1:1, and the metal vacuum insulation board has a lower thermal conductivity, the thickness of the deep low-temperature refrigerator can be reduced under the condition of the same heat insulation effect, so that the accommodation cavity of the deep low-temperature refrigerator is larger. During the use process, the metal vacuum insulation board is arranged close to the accommodation cavity, and the metal vacuum insulation board has a large strength, so that the vacuum insulation board composite structure is not easily damaged, and the strength of the overall deep low-temperature refrigerator is improved. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of a vacuum insulation board composite structure in the prior art;

[0017] Figure 2 It is a schematic structural diagram of the vacuum insulation board composite structure in the present application;

[0018] Figure 3 It is a schematic connection diagram of the ordinary vacuum insulation board, the polyurethane foam board and the metal vacuum insulation board in the present application.

[0019] Description of the reference numerals in the drawings

[0020] Ordinary vacuum insulation panel 1, first core material 11, first getter 12, desiccant 13, barrier bag 14, strip groove 141, polyurethane foam board 2, rib 21, metal vacuum insulation panel 3, first stainless steel foil board 31, upper connection part 311, second stainless steel foil board 32, second core material 33, second getter 34. Specific embodiments

[0021] For better explaining the present invention for easy understanding, the present invention will be described in detail below in conjunction with the drawings through specific embodiments.

[0022] As Figures 2 to 3 shown, a vacuum insulation panel composite structure for cryogenic insulation of the present invention includes an ordinary vacuum insulation panel 1, a polyurethane foam board 2 and a metal vacuum insulation panel 3. One side of the polyurethane foam board 2 is fixedly connected to the ordinary vacuum insulation panel 1, and the thickness ratio of the polyurethane foam board 2 to the ordinary vacuum insulation panel 1 is 1 - 1.5:1. The metal vacuum insulation panel 3 is fixedly connected to the other side of the polyurethane foam board 2, and the thickness ratio of the metal vacuum insulation panel 3 to the ordinary vacuum insulation panel 1 is 0.5 - 1:1.

[0023] In this way, for a vacuum insulation panel composite structure for cryogenic insulation of the present invention, when in use, the vacuum insulation panel composite structure is installed in a cryogenic refrigerator. Since the thickness ratio of the polyurethane foam board 2 to the ordinary vacuum insulation panel 1 is 1 - 1.5:1 and the thickness ratio of the metal vacuum insulation panel 3 to the ordinary vacuum insulation panel 1 is 0.5 - 1:1, and the metal vacuum insulation panel 3 has a low thermal conductivity, the thickness of the cryogenic refrigerator can be reduced while achieving the same insulation effect, so that the accommodation cavity of the cryogenic refrigerator is larger. During use, the metal vacuum insulation panel 3 is arranged close to the accommodation cavity, and the metal vacuum insulation panel 3 has a large strength, making the vacuum insulation panel composite structure not easily damaged and improving the strength of the overall cryogenic refrigerator.

[0024] Optionally, the ordinary vacuum insulation panel 1 includes a first core material 11, a first getter 12, a desiccant 13 and a barrier bag 14. The first core material 11 is arranged inside the barrier bag 14, the first getter 12 is arranged on the core material and inside the barrier bag 14, and the desiccant 13 is arranged on the first core material 11 and inside the barrier bag 14. Among them, the first core material 11 is glass fiber or expanded perlite. By arranging the first core material 11, the first getter 12 and the desiccant 13, after the ordinary vacuum insulation panel 1 is manufactured, under the action of the first getter 12 and the desiccant 13, the heat insulation effect of the ordinary vacuum insulation panel 1 is improved.

[0025] In this embodiment, a plurality of strip grooves 141 are formed on the surface of the barrier bag 14 close to the polyurethane foam board 2, and a rib 21 inserted into the strip groove 141 is formed on the surface of the polyurethane foam board 2 close to the barrier bag 14. During production, the first core material 11 can be divided into two groups, namely a base core material and a strip core material. The strip core material is arranged on the base core material, and a gap is formed between adjacent strip core materials, so that the manufactured ordinary vacuum insulation board 1 has a plurality of strip grooves 141. Then, the polyurethane is foamed to form the rib 21 on the polyurethane foam board 2. By providing the strip grooves 141 and the rib 21, the contact area between the polyurethane foam board 2 and the ordinary vacuum insulation board 1 is increased, thereby enhancing the overall firmness.

[0026] In this embodiment, the metal vacuum insulation board 3 includes a first stainless steel foil board 31, a second stainless steel foil board 32, a second core material 33, and a second getter 34. The edge of the second stainless steel foil board 32 is welded to the edge of the first stainless steel foil board 31. The second core material 33 is arranged between the first stainless steel foil board 31 and the second stainless steel foil board 32, and the second getter 34 is arranged on the second core material 33 and located between the first stainless steel foil board 31 and the second stainless steel foil board 32. The metal vacuum insulation board 3 has good heat insulation effect and greater overall strength. After combining the metal vacuum insulation board 3 with the polyurethane foam board 2, the overall heat insulation effect is good. Preferably, the second core material 33 is basalt or ceramic fiber. The second getter 34 is ferrozirconium vanadium.

[0027] Furthermore, an upper connection portion 311 is formed at the upper end of the first stainless steel foil board 31. The upper connection portion 311 is connected to the upper part of the polyurethane foam board 2. A lower connection portion is formed at the lower end of the first stainless steel foil board 31, and the lower connection portion is connected to the lower part of the polyurethane foam board 2.

[0028] By providing the upper connection portion 311 and the lower connection portion, the contact area between the metal vacuum insulation board 3 and the polyurethane foam board 2 is increased, and the connection strength between the metal vacuum insulation board 3 and the polyurethane foam board 2 is improved.

[0029] In this embodiment, the thickness of the ordinary vacuum insulation board 1 is 20 mm, the thickness of the polyurethane foam board 2 is 30 mm, and the thickness of the metal vacuum insulation board 3 is 15 mm. After testing, the heat insulation effect of this vacuum insulation board composite structure is approximately the same as that of the traditional vacuum insulation board composite structure (the thickness of the vacuum insulation board 10 is 20 mm, and the thickness of the polyurethane foam board 20 is 180 mm), while the thickness is greatly reduced, achieving a thinner thickness of the deep - low temperature refrigerator, so that the accommodation cavity of the deep - low temperature refrigerator is larger. At the same time, the metal vacuum insulation board 3 has greater strength, making the vacuum insulation board composite structure not easily damaged and improving the strength of the overall deep - low temperature refrigerator.

[0030] The above are only embodiments of the present utility model, and do not thus limit the patent scope of the present utility model. Any equivalent transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in the relevant technical fields, shall similarly be included within the patent protection scope of the present utility model.

Claims

1. A vacuum insulation panel composite structure for deep low temperature insulation, characterized in that: It comprises a common vacuum insulation panel, a polyurethane foam panel and a metal vacuum insulation panel, wherein one side of the polyurethane foam panel is fixedly connected to the common vacuum insulation panel, and the ratio of the thickness of the polyurethane foam panel to that of the common vacuum insulation panel is 1-1.5:1; the metal vacuum insulation panel is fixedly connected to the other side of the polyurethane foam panel, and the ratio of the thickness of the metal vacuum insulation panel to that of the common vacuum insulation panel is 0.5-1:

1.

2. The vacuum insulation panel composite structure for deep low temperature insulation according to claim 1, characterized in that: The common vacuum insulation panel includes a first core material, a first getter, a desiccant and a barrier bag, wherein the first core material is arranged in the barrier bag, the first getter is arranged on the core material and located in the barrier bag, and the desiccant is arranged on the first core material and located in the barrier bag.

3. The vacuum insulation panel composite structure for deep low temperature insulation according to claim 2, characterized in that: The first core material is glass fiber or expanded perlite.

4. The vacuum insulation panel composite structure for deep low temperature insulation according to claim 2, characterized in that: A plurality of strip grooves are formed on one side of the barrier bag close to the polyurethane foam plate, and convex strips inserted into the strip grooves are formed on one side of the polyurethane foam plate close to the barrier bag.

5. The vacuum insulation panel composite structure for deep low temperature insulation according to claim 1, characterized in that: The metal vacuum insulation panel includes a first stainless steel foil plate, a second stainless steel foil plate, a second core material and a second getter, the edge of the second stainless steel foil plate is welded to the edge of the first stainless steel foil plate, the second core material is arranged between the first stainless steel foil plate and the second stainless steel foil plate, and the second getter is arranged on the second core material and located between the first stainless steel foil plate and the second stainless steel foil plate.

6. The vacuum insulation panel composite structure for deep low temperature insulation according to claim 5, characterized in that: The second core material is basalt or ceramic fiber.

7. The vacuum insulation panel composite structure for deep low temperature insulation according to claim 5, characterized in that: The second getter is zirconium vanadium iron.

8. The vacuum insulation panel composite structure for deep low temperature insulation according to claim 5, characterized in that: The upper end of the first stainless steel foil plate forms an upper connection part, which is connected to the upper part of the polyurethane foam plate. The lower end of the first stainless steel foil plate forms a lower connection part, which is connected to the lower part of the polyurethane foam plate.

9. The vacuum insulation panel composite structure for deep low temperature insulation according to claim 1, characterized in that: The thickness of the common vacuum insulation panel is 20 mm, the thickness of the polyurethane foam panel is 30 mm, and the thickness of the metal vacuum insulation panel is 15 mm.

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