CN219739079U - Phase-change aerogel heat insulation pad - Google Patents
Phase-change aerogel heat insulation pad Download PDFInfo
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- CN219739079U CN219739079U CN202320805113.3U CN202320805113U CN219739079U CN 219739079 U CN219739079 U CN 219739079U CN 202320805113 U CN202320805113 U CN 202320805113U CN 219739079 U CN219739079 U CN 219739079U
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- 239000004964 aerogel Substances 0.000 title claims abstract description 110
- 238000009413 insulation Methods 0.000 title claims abstract description 50
- 239000012785 packaging film Substances 0.000 claims abstract description 14
- 229920006280 packaging film Polymers 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 230000001681 protective effect Effects 0.000 claims description 22
- 238000005538 encapsulation Methods 0.000 claims description 14
- 230000007704 transition Effects 0.000 claims description 12
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000011162 core material Substances 0.000 abstract description 57
- 239000012782 phase change material Substances 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 9
- 239000012774 insulation material Substances 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 57
- 239000010410 layer Substances 0.000 description 35
- 239000012071 phase Substances 0.000 description 29
- 239000000463 material Substances 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 10
- 239000011888 foil Substances 0.000 description 6
- 239000004744 fabric Substances 0.000 description 5
- 239000003292 glue Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000000805 composite resin Substances 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000012074 organic phase Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910001508 alkali metal halide Inorganic materials 0.000 description 1
- 150000008045 alkali metal halides Chemical class 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
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- Thermal Insulation (AREA)
Abstract
The utility model provides a phase-change aerogel heat insulation pad, and belongs to the technical field of heat insulation materials. The phase-change aerogel heat-insulating pad comprises a packaging film, a phase-change layer and an aerogel core material, the phase-change aerogel heat-insulating pad further comprises a protection film, the protection film is arranged between the phase-change layer and the aerogel core material in an isolated mode, the size of the protection film is not smaller than that of the phase-change layer or the aerogel core material, so that the phase-change material is prevented from penetrating into the aerogel core material to influence the heat-insulating performance of the phase-change layer and the aerogel core material, and the problem that the phase-change material penetrates into the aerogel core material to reduce the heat-insulating performance of the aerogel core material in the processing and manufacturing process or the using process due to the direct contact of the phase-change layer and the aerogel core material of the existing heat-insulating pad is solved.
Description
Technical Field
The utility model relates to a phase-change aerogel heat insulation pad, and belongs to the technical field of heat insulation materials.
Background
The power battery is a core technology of a new energy vehicle, the safety problem of the power battery is very critical, the accident that the electric vehicle burns out due to the thermal runaway of the power battery happens sometimes, and one of the common protection technologies is to arrange a heat insulation pad between the electric cores of the power battery in order to solve the thermal runaway thermal diffusion problem at present.
For example, an aerogel thermal insulation film (i.e., a phase-change aerogel thermal insulation pad) disclosed in chinese patent publication No. CN210528843U comprises a substrate (i.e., a packaging film), a phase-change layer, an aerogel thermal insulation layer (i.e., an aerogel core), an adhesive layer, and a release film layer, wherein the phase-change layer and the aerogel thermal insulation layer are sequentially attached to the substrate. The aerogel heat insulation film realizes heat storage through the composite phase change material, and avoids temperature overheating.
However, the phase-change material in the phase-change layer of the heat-insulating pad and the aerogel core material are in direct contact, so that the phase-change material in the phase-change layer of the heat-insulating pad can infiltrate into the aerogel core material in the processing and manufacturing process, or in the use process, the phase-change material can infiltrate into the aerogel core material in the phase-change process, and further the heat-insulating performance of the aerogel core material is reduced.
Disclosure of Invention
The utility model aims to provide a phase-change aerogel heat insulation pad, which aims to solve the problem that the heat insulation performance of an aerogel core material is reduced due to the fact that a phase-change material permeates into the aerogel core material in the processing and manufacturing process or the using process of the existing heat insulation pad due to the fact that the phase-change layer of the existing heat insulation pad is in direct contact with the aerogel core material.
In order to achieve the above purpose, the phase-change aerogel heat insulation pad of the utility model adopts the following technical scheme:
the utility model provides a phase transition aerogel heat insulating mattress, includes packaging film, phase transition layer, aerogel core, and phase transition aerogel heat insulating mattress still includes the protection film, and the protection film separates to establish between phase transition layer and aerogel core, and the size of protection film is not less than the size of phase transition layer or aerogel core to avoid phase transition layer and aerogel core direct contact.
The beneficial effects of the technical scheme are that: the phase-change aerogel heat-insulating pad is improved, the phase-change layer and the aerogel core material are arranged at intervals, the size of the protective film is not smaller than that of the phase-change layer or the aerogel core material, so that the phase-change material is prevented from penetrating into the aerogel core material to influence the heat-insulating performance of the phase-change layer and the aerogel core material, and the problem that the phase-change material penetrates into the aerogel core material to reduce the heat-insulating performance of the aerogel core material in the processing and manufacturing process or the using process due to the direct contact of the phase-change layer and the aerogel core material of the conventional heat-insulating pad is solved.
Further, two encapsulation films are provided, and the phase change layer, the protective film and the aerogel core material are located between the two encapsulation films.
The beneficial effects of the technical scheme are that: the packaging is convenient, and the phase-change layer, the protective film and the aerogel core material are well protected.
Further, the phase-change aerogel heat insulation pad also comprises a buffer frame, and the buffer frame is positioned between the two packaging films.
The beneficial effects of the technical scheme are that: the buffer frame can bear larger extrusion force, and a protective effect is formed on the aerogel core material.
Further, the phase-change aerogel heat insulation pad further comprises a buffer frame, wherein the buffer frame is positioned on the outer sides of the two packaging films and is adhered and fixed on the outer side face of one of the packaging films.
The beneficial effects of the technical scheme are that: the buffer frame can bear larger extrusion force, and a protective effect is formed on the aerogel core material.
Further, the phase-change aerogel heat insulation pad also comprises a buffer frame, and the buffer frame is bonded with the packaging film.
The beneficial effects of the technical scheme are that: the buffer frame can bear larger extrusion force, and a protective effect is formed on the aerogel core material.
Further, the protective film is a film containing a back adhesive, and the protective film is bonded with at least one of the phase change layer and the aerogel core material through the back adhesive.
The beneficial effects of the technical scheme are that: the position of the protective film is conveniently fixed, and the phase change layer and the aerogel core material are stably kept to be separated.
Further, the buffer frame is shaped like a Chinese character 'kou'; the buffer frame is formed by splicing two frame strips, each frame strip is L-shaped, or the buffer frame is formed by splicing three frame strips, one frame strip is L-shaped, the other two frame strips are one-shaped, or the buffer frame is formed by splicing four frame strips, and each frame strip is one-shaped.
The beneficial effects of the technical scheme are that: the buffer frame is not an integral structure, but is formed by splicing frame strips, the shape of the frame strips is L-shaped or I-shaped, the two shapes are easy to typeset, and a plurality of frame strips can be arranged close to each other, so that raw materials are fully utilized, typesetting quantity is increased, production efficiency is improved, and the problem of waste of central materials is avoided.
Further, splicing structures are arranged between the two ends of any one frame strip and the adjacent frame strip, and the splicing structures at the two ends are respectively one of inclined plane splicing, cutting splicing, concave-convex splicing, tooth splicing, tenon splicing, strip penetrating splicing and strip penetrating splicing.
The beneficial effects of the technical scheme are that: the splicing structure can facilitate the splicing connection between two adjacent frame strips, and ensure the integral connection strength of the 'mouth' -shaped buffer frame.
Further, the buffer frame is U-shaped; the buffer frame is formed by splicing two frame strips, wherein one frame strip is L-shaped, the other frame strip is in a shape like a Chinese character 'yi', or the buffer frame is formed by splicing three frame strips, and each frame strip is in a shape like a Chinese character 'yi'.
The beneficial effects of the technical scheme are that: the U-shaped buffer frame is simple in structure, can save materials and reduce cost, is not an integral structure, but is formed by splicing frame strips, the frame strips are L-shaped or I-shaped, the two shapes are easy to typeset, a plurality of frame strips can be arranged close to each other, raw materials are fully utilized, typesetting quantity is increased, production efficiency is improved, and the problem of waste of central materials is avoided.
Further, a splicing structure is arranged between the end parts of the two frame strips spliced mutually, and the splicing structure is one of an inclined plane splicing, a cutting splicing, a concave-convex splicing, a tooth-shaped splicing, an inserting tenon splicing, a strip penetrating splicing and a strip penetrating splicing.
The beneficial effects of the technical scheme are that: the splicing structure can facilitate the splicing connection between two adjacent frame strips, and ensure the integral connection strength of the U-shaped buffer frame.
Drawings
FIG. 1 is a schematic diagram of an exploded structure of example 1 of a phase change aerogel insulation blanket according to the present utility model;
FIG. 2 is a schematic diagram of an exploded structure of example 2 of a phase change aerogel insulation mat according to the present utility model;
FIG. 3 is a schematic diagram of an exploded structure of example 3 of a phase change aerogel insulation mat according to the present utility model.
In the figure: 1. packaging films; 2. an aerogel core material; 3. a buffer frame; 4. a protective film; 5. a phase change layer.
Detailed Description
The features and capabilities of the present utility model are described in further detail below in connection with the examples.
Example 1 of phase change aerogel insulation mat in the present utility model:
according to the embodiment, the phase change layer and the aerogel core material are prevented from being in direct contact by arranging the protective film at the interval between the phase change layer and the aerogel core material, so that the heat insulation performance of the aerogel core material is prevented from being reduced due to the fact that the phase change material permeates into the aerogel core material in the processing and manufacturing process or the using process; meanwhile, the structure of the buffer frame is improved, the buffer frame is formed by splicing at least two frame strips, the shape of the frame strips is L-shaped, typesetting quantity can be increased, and waste of central materials is reduced compared with an integral buffer frame.
Specifically, as shown in fig. 1, the phase-change aerogel heat insulation pad comprises an encapsulation film 1, an aerogel core material 2, a buffer frame 3, a protection film 4 and a phase-change layer 5, wherein the encapsulation film 1 is provided with two, and the aerogel core material 2, the buffer frame 3, the protection film 4 and the phase-change layer 5 are all encapsulated between the two encapsulation films 1. The packaging film 1 is a film with the inner surface containing back glue, the outer surface can be selected from back glue or back glue, the material of the packaging film 1 can be an organic film, cloth or metal foil, and the organic film is any one of a PET film, a PEN film, a PI film, a PC film, a PE film, a PVC film and a PTFE film; the cloth is any one of glass fiber cloth, high silica glass fiber cloth, ceramic fiber cloth and non-woven fabric; the metal foil is any one of copper foil, aluminum foil, tin foil, gold foil and silver foil.
The protection film 4 is arranged between the phase-change layer 5 and the aerogel core material 2 in an isolated manner, the size of the protection film 4 is not smaller than the size of the phase-change layer 5 or the aerogel core material 2, so that the phase-change material is prevented from penetrating into the aerogel core material 2 to influence the heat insulation performance of the aerogel core material, and the problem that the phase-change material penetrates into the aerogel core material to reduce the heat insulation performance of the aerogel core material in the processing and manufacturing process or the using process due to the direct contact of the phase-change layer and the aerogel core material of the conventional heat insulation pad is solved.
The protective film 4 is a film containing a back adhesive, and the protective film 4 is bonded to at least one of the phase change layer 5 and the aerogel core 2, preferably to the aerogel core 2, by the back adhesive. The material of the protective film 4 is an organic film or a metal foil, and the organic film is any one of a PET film, a PEN film, a PI film, a PC film, a PE film, a PVC film and a PTFE film; the metal foil is any one of copper foil, aluminum foil, tin foil, gold foil and silver foil.
The phase change layer 5 may be selected from at least 1 of organic phase change materials, inorganic phase change materials, and polyol phase change materials, the organic phase change materials may be selected from at least 1 of alkali and alkali metal halides, sulfates, phosphates, nitrates, acetates, and carbonates, and the composite phase change materials may be selected from phase change microcapsule-containing paint, inorganic salt-and aqueous resin composite paint.
The aerogel core material 2 may be any one of a wet-process fiber mat, a needled fiber mat, foam, nonwoven fabric, and a resin composite sheet, which contains aerogel and has good heat insulation. The buffer frame 3 is a supporting material, and can be any one of a silicon rubber frame, a ceramic silicon rubber frame, a PPO frame, an MPP frame, an organic material frame, a mica plate frame, a composite material frame, a foaming silica gel frame, a foaming PU frame, a foam frame, a sponge frame and a foam frame.
The buffer frame 3 in this embodiment is "mouthful" font to buffer frame 3 comprises two frame strips concatenation, and each frame strip is L shape, and this kind of shape is typesetting relatively easily, can realize that a plurality of frame strips are close to arranging, thereby make full use of raw and other materials, increase typesetting quantity, improve production efficiency, compare the waste that integral type buffer frame can reduce central material. For convenient concatenation, all be provided with mosaic structure between the both ends of one of them frame strip and the another one frame strip, the mosaic structure at both ends is one of inclined plane piece together, the cutting edge piece together, unsmooth piece together, profile of tooth piece together, insert tenon piece together, wear strip concatenation and wear to take piece together respectively. In this embodiment, the splicing structures at two ends are all concave-convex, that is, the end of one of the frame strips is provided with a protrusion, the end of the other frame strip is provided with a groove for embedding the protrusion, and both the protrusion and the groove are V-shaped.
Example 2 of phase-change aerogel insulation mat in the present utility model:
in this embodiment, the arrangement positions of the buffer frames are changed, specifically as shown in fig. 2, the phase-change aerogel heat insulation pad still includes an encapsulation film 1, an aerogel core material 2, a buffer frame 3, a protection film 4, and a phase-change layer 5, unlike in embodiment 1, the buffer frame 3 in this embodiment is located outside two encapsulation films 1 and is adhered and fixed on the outer side surface of one of the encapsulation films 1.
Example 3 of phase change aerogel insulation mat in the present utility model:
the embodiment changes the shape structure of the buffer frame, specifically as shown in fig. 3, the phase-change aerogel heat insulation pad still includes a packaging film 1, an aerogel core material 2, a buffer frame 3, a protection film 4 and a phase-change layer 5, unlike in embodiment 2, the buffer frame 3 in this embodiment is in a shape of a "U", and the buffer frame 3 is formed by splicing two frame strips, wherein one frame strip is in a shape of an L, the other frame strip is in a shape of a "one", and the splicing structure between the two frame strips is a cutting splice.
Example 4 of phase change aerogel insulation mat in the present utility model:
the present embodiment changes the constitution of the buffer frame, unlike embodiment 3, in which the buffer frame is formed by splicing three frame bars, each frame bar is in a shape of a straight line, and the splicing structure between two frame bars spliced together is one of an oblique splice, a split splice, a concave-convex splice, a tooth splice, an insertion tenon splice, a threading splice and a threading splice.
Example 5 of phase-change aerogel insulation mat in the present utility model:
the present embodiment changes the structure of the buffer frame, unlike embodiment 1 or embodiment 2, in which the buffer frame is in a "mouth" shape, but the buffer frame is formed by splicing three frame strips, one of which is in an L shape, and the other two frame strips are in a "one" shape, and the splicing structures at both ends of the frame strips are respectively one of an oblique splicing, a split splicing, a concave-convex splicing, a tooth splicing, an insertion tenon splicing, a threading splicing and a threading splicing.
Example 6 of phase-change aerogel insulation mat in the present utility model:
the present embodiment changes the structure of the buffer frame, unlike embodiment 1 or embodiment 2, in which the buffer frame is shaped like a Chinese character 'kou', but the buffer frame is formed by splicing four frame strips, each frame strip is shaped like a Chinese character 'yi', and the splicing structures at two ends of the frame strip are respectively one of an inclined plane splicing, a cutting splicing, a concave-convex splicing, a tooth splicing, an insertion tenon splicing, a threading splicing and a threading splicing.
Example 7 of phase change aerogel insulation mat in the present utility model:
this example provides a different bonding method of the protective film, unlike example 1, in which the protective film is bonded only to the phase change layer. Of course, in other embodiments, both sides of the protective film may be bonded to both the phase change layer and the aerogel core.
Example 8 of phase change aerogel insulation mat in the present utility model:
this example provides a different form of protective film, unlike example 1, in that the protective film is free of glue and is merely sandwiched between the phase change layer and the aerogel core.
Example 9 of phase-change aerogel insulation mat in the present utility model:
this embodiment provides a different arrangement of the buffer frame, unlike embodiment 1, in which there is only one encapsulation film, and the buffer frame is bonded to the encapsulation film.
Example 10 of phase change aerogel insulation mat in the present utility model:
this example provides a different composition of a phase change aerogel insulation blanket, unlike example 1, where the phase change aerogel insulation blanket does not contain a buffer frame.
The above description is only a preferred embodiment of the present utility model, and the patent protection scope of the present utility model is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a phase transition aerogel heat insulating mattress, includes packaging film (1), phase transition layer (5), aerogel core (2), its characterized in that, phase transition aerogel heat insulating mattress still includes protection film (4), and protection film (4) separate and establish between phase transition layer (5) and aerogel core (2), and the size of protection film (4) is not less than the size of phase transition layer (5) or aerogel core (2) to avoid phase transition layer (5) and aerogel core (2) direct contact.
2. The phase-change aerogel insulation pad according to claim 1, wherein two encapsulation films (1) are provided, and the phase-change layer (5), the protective film (4) and the aerogel core (2) are located between the two encapsulation films (1).
3. The phase change aerogel insulation blanket of claim 2, further comprising a buffer frame (3), wherein the buffer frame (3) is located between two encapsulation films (1).
4. The phase-change aerogel heat insulation pad according to claim 2, further comprising a buffer frame (3), wherein the buffer frame (3) is located outside the two packaging films (1) and is adhesively fixed on the outer side surface of one of the packaging films (1).
5. The phase change aerogel insulation blanket of claim 1, further comprising a buffer frame (3), wherein the buffer frame (3) is bonded to the encapsulation film (1).
6. The phase-change aerogel insulation mat according to any one of claims 1 to 5, wherein the protective film (4) is a film containing a back adhesive, and the protective film (4) is bonded to at least one of the phase-change layer (5) and the aerogel core (2) by the back adhesive.
7. The phase-change aerogel insulation blanket according to any of claims 3-5, wherein the buffer frame (3) is "mouth" shaped; the buffer frame (3) is formed by splicing two frame strips, each frame strip is L-shaped, or the buffer frame (3) is formed by splicing three frame strips, one frame strip is L-shaped, the other two frame strips are one-shaped, or the buffer frame (3) is formed by splicing four frame strips, and each frame strip is one-shaped.
8. The phase-change aerogel heat insulation mat of claim 7, wherein splicing structures are arranged between two ends of any one of the frame strips and the adjacent frame strips, and the splicing structures at the two ends are respectively one of slant splicing, cutting splicing, concave-convex splicing, tooth splicing, insertion tenon splicing, strip penetrating splicing and strip penetrating splicing.
9. The phase-change aerogel insulation blanket of any of claims 3-5, wherein the buffer frame (3) is "U" -shaped; the buffer frame (3) is formed by splicing two frame strips, wherein one frame strip is L-shaped, the other frame strip is in a shape like a Chinese character 'yi', or the buffer frame (3) is formed by splicing three frame strips, and each frame strip is in a shape like a Chinese character 'yi'.
10. The phase-change aerogel heat insulation mat of claim 9, wherein a splice structure is provided between ends of two frame strips spliced together, the splice structure being one of a bevel splice, a split splice, a concave-convex splice, a tooth splice, an insert tenon splice, a strip threading splice and a tape threading splice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320805113.3U CN219739079U (en) | 2023-04-12 | 2023-04-12 | Phase-change aerogel heat insulation pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320805113.3U CN219739079U (en) | 2023-04-12 | 2023-04-12 | Phase-change aerogel heat insulation pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219739079U true CN219739079U (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320805113.3U Active CN219739079U (en) | 2023-04-12 | 2023-04-12 | Phase-change aerogel heat insulation pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219739079U (en) |
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2023
- 2023-04-12 CN CN202320805113.3U patent/CN219739079U/en active Active
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