CN216307107U - Aerogel heat insulating board - Google Patents
Aerogel heat insulating board Download PDFInfo
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- CN216307107U CN216307107U CN202122603836.9U CN202122603836U CN216307107U CN 216307107 U CN216307107 U CN 216307107U CN 202122603836 U CN202122603836 U CN 202122603836U CN 216307107 U CN216307107 U CN 216307107U
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- covering film
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- aerogel
- heat insulation
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Abstract
The utility model relates to the technical field of heat preservation and heat insulation, and discloses an aerogel heat insulation plate which mainly comprises an upper covering film, a lower covering film and an aerogel heat insulation layer, wherein the upper covering film and the lower covering film respectively comprise an outer layer, an intermediate layer and an inner film layer, the inner film layer is a hot melt adhesive layer, the intermediate layer comprises at least two layers of aluminum foils, and the aluminum foils are fixedly bonded; the upper covering film and the lower covering film are both provided with grooves, the upper covering film and the lower covering film are symmetrically and hermetically connected, and cavities for containing aerogel heat insulation layers are formed in the grooves. The heat insulation plate provided by the utility model is simple in structure and reliable in heat insulation effect.
Description
Technical Field
The utility model relates to the technical field of heat preservation and heat insulation, in particular to an aerogel heat insulation plate.
Background
Insulation panels are generally used for thermal insulation or heat preservation and have a low thermal conductivity. The vacuum insulation panel is a hot point of recent research, is generally formed by compounding a filling core material and a vacuum protection surface layer, effectively avoids heat transfer caused by air convection, can greatly reduce the heat conductivity coefficient, does not contain any ODS material, and has the characteristics of environmental protection, high efficiency and energy saving.
The aerogel has the characteristics of high porosity, low density and the like, and has a very good heat insulation effect because more than 80% of the aerogel is air generally, and the aerogel with one inch thickness has the heat insulation function equivalent to 20-30 common glass. Therefore, the aerogel is used for preparing the thermal insulation board, and particularly, when the aerogel is in a vacuum environment in the board, the thermal insulation effect is better.
However, when the thermal insulation board is prepared by aerogel, a supporting structure and an encapsulating structure are generally required to be arranged around the aerogel, and the process is complicated and the cost is high.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides the aerogel thermal insulation board, wherein the upper cover film and the lower cover film are punched into fixed shapes to contain the aerogel thermal insulation layer, and the periphery of the cover film is subjected to heat sealing to realize vacuum packaging of the aerogel thermal insulation layer, so that the structure is simpler, and the thermal insulation effect is reliable.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
an aerogel heat insulation plate mainly comprises an upper covering film, a lower covering film and an aerogel heat insulation layer, wherein the upper covering film and the lower covering film respectively comprise an outer layer, an intermediate layer and an inner film layer, the inner film layer is a hot melt adhesive layer, the intermediate layer comprises at least two layers of aluminum foils, and the aluminum foils are fixedly bonded; the upper covering film and the lower covering film are both provided with grooves, the upper covering film and the lower covering film are symmetrically and hermetically connected, and cavities for containing aerogel heat insulation layers are formed in the grooves.
Further, in the above technical solution, a vacuum exhaust tube is disposed between the upper cover film and the lower cover film.
Further, in the above technical solution, the inner film layer is a polypropylene film.
Further, in the above technical solution, the shape and size of the groove in the upper cover film are consistent with those of the groove in the lower cover film.
The utility model has the beneficial effects that: the middle layers of the upper covering film and the lower covering film are formed by bonding a plurality of layers of aluminum foils, so that the upper covering film and the lower covering film can keep certain strength after being punched with grooves, a supporting structure is avoided, and meanwhile, the flexible aerogel covering film has flexibility, can be well pasted on an aerogel heat insulation layer after being vacuumized, and realizes vacuum packaging; the inner film layers of the upper covering film and the lower covering film are hot melt adhesive layers, so that good air tightness can be provided, and the upper and lower covering films can be hermetically connected under the heating condition.
Drawings
FIG. 1 is a schematic structural view of an aerogel insulation panel according to an embodiment of the present disclosure;
fig. 2 is a top view of a lower cover film in an aerogel insulation panel according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail below by means of the attached drawings and enumerating some alternative embodiments of the utility model. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments.
The aerogel thermal insulation board shown in fig. 1-2 is composed of an upper covering film 10, a lower covering film 20 and an aerogel thermal insulation layer 30, wherein the upper covering film 10 and the lower covering film 20 are wrapped outside the aerogel thermal insulation layer 30 and are sealed and bonded.
The upper coverlay film 10 and the lower coverlay film 20 have the same structure and are composed of an outer layer 110, an intermediate layer 120 and an inner film layer 130, and the adjacent layers are fixedly connected into a whole through an adhesive. The inner film layer is a hot melt adhesive layer, so that the upper and lower covering films can be sealed by heating, and in a specific embodiment, a polypropylene film can be adopted; the middle layer at least comprises two layers of aluminum foils, the aluminum foils are fixed through a bonding agent, and the strength of the covering film can be improved through the multiple layers of aluminum foils; the outer layer may be a high surface strength, scratch resistant film. A groove 140 is punched in the centers of the upper covering film 10 and the lower covering film 20, a sealing connection part 150 is arranged around the groove 140, and the shape and the size of the groove of the upper covering film 10 can be consistent with or inconsistent with those of the groove of the lower covering film 20; the size and shape of the two grooves can be determined by the shape and size of the aerogel heat insulation layer material, and the size of the cavity formed by the upper covering film 10 and the lower covering film 20 after the sealing connection is optimally fitted with the size of the aerogel heat insulation layer material.
A vacuum extraction tube 40 may be provided between the upper and lower cover films to facilitate evacuation of the insulating panel intermediate layer.
The specific preparation method of the heat insulation board can be referred to as follows: stamping grooves 140 on the upper covering film 10 and the lower covering film 20, placing the aerogel heat-insulating layer 30 in the grooves 140, carrying out hot pressing on the connection parts around the upper covering film 10 and the lower covering film 20 to enable the upper covering film 10 and the lower covering film 20 to be bonded to form a closed structure, vacuumizing the aerogel heat-insulating layer through the vacuum exhaust tube 40, and then carrying out hot-pressing sealing on the connection part at the front end of the vacuum exhaust tube 40, thereby forming the vacuum heat-insulating plate.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the utility model, and any modification, combination, replacement, or improvement made within the spirit and principle of the present invention is included in the scope of the present invention.
Claims (4)
1. The aerogel heat insulation plate is characterized by mainly comprising an upper covering film, a lower covering film and an aerogel heat insulation layer, wherein the upper covering film and the lower covering film respectively comprise an outer layer, an intermediate layer and an inner film layer, the inner film layer is a hot melt adhesive layer, the intermediate layer comprises at least two layers of aluminum foils, and the aluminum foils are fixedly bonded; the upper covering film and the lower covering film are both provided with grooves, the upper covering film and the lower covering film are symmetrically and hermetically connected, and cavities for containing aerogel heat insulation layers are formed in the grooves.
2. The aerogel insulation panel of claim 1, wherein a vacuum extraction duct is provided between the upper and lower coverlay films.
3. The aerogel insulation panel of claim 1, wherein the inner film layer is a polypropylene film.
4. The aerogel insulation panel of claim 1, wherein the grooves in the upper cover film are of the same shape and size as the grooves in the lower cover film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122603836.9U CN216307107U (en) | 2021-10-28 | 2021-10-28 | Aerogel heat insulating board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122603836.9U CN216307107U (en) | 2021-10-28 | 2021-10-28 | Aerogel heat insulating board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216307107U true CN216307107U (en) | 2022-04-15 |
Family
ID=81116468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122603836.9U Active CN216307107U (en) | 2021-10-28 | 2021-10-28 | Aerogel heat insulating board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216307107U (en) |
-
2021
- 2021-10-28 CN CN202122603836.9U patent/CN216307107U/en active Active
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