CN217158540U - Aerogel electricity core baffle - Google Patents
Aerogel electricity core baffle Download PDFInfo
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- CN217158540U CN217158540U CN202221018473.0U CN202221018473U CN217158540U CN 217158540 U CN217158540 U CN 217158540U CN 202221018473 U CN202221018473 U CN 202221018473U CN 217158540 U CN217158540 U CN 217158540U
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- aerogel
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- heat insulation
- insulation layer
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- 239000004964 aerogel Substances 0.000 title claims abstract description 104
- 230000005611 electricity Effects 0.000 title abstract description 13
- 239000010410 layer Substances 0.000 claims abstract description 113
- 238000009413 insulation Methods 0.000 claims abstract description 58
- 229920006280 packaging film Polymers 0.000 claims abstract description 39
- 239000012785 packaging film Substances 0.000 claims abstract description 39
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 30
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000012790 adhesive layer Substances 0.000 claims abstract description 22
- 239000003292 glue Substances 0.000 claims abstract description 17
- 230000002265 prevention Effects 0.000 claims abstract description 14
- 238000005192 partition Methods 0.000 claims abstract description 10
- 230000008093 supporting effect Effects 0.000 claims abstract description 5
- 238000004880 explosion Methods 0.000 claims abstract description 4
- 230000035939 shock Effects 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 17
- 239000000741 silica gel Substances 0.000 claims description 10
- 229910002027 silica gel Inorganic materials 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000000499 gel Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 239000004965 Silica aerogel Substances 0.000 claims 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 22
- 230000002269 spontaneous effect Effects 0.000 abstract description 22
- 238000004200 deflagration Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Secondary Cells (AREA)
Abstract
The utility model discloses an aerogel electricity core baffle, include: the air gel layer, the heat insulation layer, the frame, the packaging film and the first adhesive layer; the heat insulation layers are arranged on two sides of the aerogel layer; the aerogel layer and the heat insulation layer are arranged in the frame; the packaging film is arranged on the outer sides of the heat insulation layer and the frame; the first adhesive layers are arranged on two sides of the packaging film; the aerogel layer is used for explosion prevention, flame retardance and fire prevention; the heat insulation layer is used for flame retardance and fire prevention; the frame is used for positioning and supporting; the packaging film is used for isolating air and ensuring the performance of the aerogel; the first glue layer is used for fixing the lithium ion battery cell and the aerogel battery cell partition board and absorbing shock. The utility model discloses newly-designed aerogel electricity core baffle has that the heat-proof quality is strong, and thickness is thin, and simple structure easily installs, can completely cut off deflagration, high temperature and the flame that 800 supplyes one's things with an effect 1200 ℃ of electric core inefficacy produced, and isolated guard time reaches more than 5min, effectively avoids single electric core spontaneous combustion to ignite whole lithium ion battery group.
Description
Technical Field
The utility model belongs to the technical field of the battery, in particular to aerogel electricity core baffle.
Background
The new energy vehicle has become the mainstream of the market due to good environmental protection and small environmental pollution, and more consumers choose to purchase the new energy vehicle along with the gradual increase of the endurance mileage of the new energy vehicle. The increase of the endurance mileage of the new energy vehicle is mainly benefited by the improvement of the performance of the lithium ion battery, but the following problem is the safety problem of the lithium ion battery, the spontaneous combustion phenomenon of the lithium ion battery is rapidly increased, the serious threat to the lives and properties of people is caused, and the intention of consumers to purchase new energy vehicles is gradually reduced. The spontaneous combustion problem of the lithium ion battery seriously affects the image of a new energy vehicle and seriously hinders the development of the new energy vehicle, and in order to solve the spontaneous combustion problem of the lithium ion battery, various automobile manufacturers and lithium ion battery manufacturers carry out a great deal of research work, and although certain research results are obtained, the spontaneous combustion problem of the lithium ion battery is still not completely solved. Through analysis of numerous spontaneous combustion cases, the spontaneous combustion of a small lithium ion cell with abnormal performance is found under most conditions when the lithium ion battery is in spontaneous combustion, and further the spontaneous combustion of the lithium ion cell with normal performance is caused, and finally the spontaneous combustion of the whole lithium ion battery is caused. Aerogel is an excellent heat insulation material and has the characteristics of low heat conductivity coefficient, low density, high porosity and large specific surface area. Therefore, it is necessary to design an aerogel cell separator with high thermal insulation efficiency.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model discloses an aerogel electricity core baffle, include: the air gel layer, the heat insulation layer, the frame, the packaging film and the first adhesive layer;
the heat insulation layers are arranged on two sides of the aerogel layer;
the aerogel layer and the heat insulation layer are arranged in the frame;
the packaging film is arranged on the outer sides of the heat insulation layer and the frame;
the first adhesive layers are arranged on two sides of the packaging film;
the aerogel layer is used for explosion prevention, flame retardance and fire prevention;
the heat insulation layer is used for flame retardance and fire prevention;
the frame is used for positioning and supporting;
the packaging film is used for isolating air and ensuring the performance of the aerogel;
the first glue layer is used for fixing the lithium ion battery cell and the aerogel battery cell partition board and absorbing shock.
Further, the aerogel layer has a thickness of 1-3.5 mm.
Furthermore, the aerogel layer is made of silicon dioxide aerogel or aluminum oxide aerogel.
Still further, the insulation layer comprises a first insulation layer and a second insulation layer;
the first thermal insulation layer is arranged on the first surface of the aerogel layer;
the second thermal insulation layer is arranged on the second surface of the aerogel layer.
Furthermore, the heat insulation layer is pre-oxidized fiber, glass fiber, ceramic fiber or mica paper.
Still further, the packaging film comprises a first packaging film and a second packaging film;
the first packaging film is arranged on one side of the heat insulation layer and one side of the frame;
the second packaging film is arranged on the other side of the heat insulation layer and the frame.
Further, the frame is thicker than the aerogel layer.
Furthermore, the frame is made of silica gel;
the hardness of the silica gel is greater than or equal to 60 degrees.
Furthermore, four corners of the frame are rounded.
Still further, still include: a second adhesive layer;
a second adhesive layer is arranged between the frame and the aerogel layer;
a second adhesive layer is arranged between the frame and the heat insulation layer;
and the second adhesive layer is used for fixing the frame and the aerogel layer as well as the frame and the heat insulation layer.
Compared with the prior art, the beneficial effects of the utility model are that: set up the insulating layer in aerogel layer both sides, set up in the silica gel frame through the glue film to use the packaging film to encapsulate, paste the glue film in the packaging film outside at last, prepare into aerogel electricity core baffle. Aerogel electric core baffle through optimal design has that heat-proof quality is strong, and thickness is thin, and simple structure easily installs, can completely cut off detonation, high temperature and the flame that 800 supplementarily 1200 ℃ of electric core became invalid and produce, and isolated protection time reaches more than 5min, effectively avoids single electric core spontaneous combustion to ignite whole lithium ion battery group.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 shows a schematic structural view of an aerogel cell separator core according to an embodiment of the present invention;
fig. 2 is a cross-sectional view a-a of the aerogel cell separator core shown in fig. 1;
fig. 3 shows a schematic structural diagram of an aerogel cell separator according to an embodiment of the present invention;
figure 4 is a cross-sectional view B-B of the aerogel cell separator shown in figure 3.
Reference numerals are as follows: 1. an aerogel layer; 2. a thermal insulation layer; 3. a frame; 4. packaging the film; 5. a first adhesive layer; 6. and a second adhesive layer.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely illustrate the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Fig. 1 shows a schematic structural diagram of an aerogel electric core separator inner core according to an embodiment of the present invention. As shown in fig. 1, the utility model provides an aerogel electricity core baffle, include: the air gel layer 1, the heat insulation layer 2, the frame 3 and the second adhesive layer 6;
as shown in fig. 2, the thermal insulation layer 2 is arranged on both sides of the aerogel layer 1; the aerogel layer 1 and the heat insulation layer 2 are arranged in the frame 3; a second adhesive layer 6 is arranged between the frame 3 and the aerogel layer 1; a second adhesive layer 6 is arranged between the frame 3 and the heat insulation layer 2;
the aerogel layer 1 is used for explosion prevention, flame retardance and fire prevention; wherein, the aerogel content (weight percentage) in the aerogel layer 1 is more than 70 percent;
the heat insulation layer 2 is used for flame retardance and fire prevention;
the frame 3 is used for positioning and supporting;
and the second adhesive layer 6 is used for fixing the frame 3 and the aerogel layer 1, and the frame 3 and the heat insulation layer 2.
Fig. 3 shows a schematic structural diagram of an aerogel battery cell separator according to an embodiment of the present invention. As shown in fig. 3, the aerogel cell separator further includes: a packaging film 4 and a first glue layer 5;
as shown in fig. 4, the packaging film 4 is disposed outside the heat insulating layer 2 and the frame 3; the first glue layer 5 is arranged on two sides of the packaging film 4.
The packaging film 4 is used for isolating air and ensuring the performance of the aerogel;
and the first adhesive layer 5 is used for fixing the lithium ion battery cell and the aerogel battery cell partition board and absorbing shock. Preferably, the first glue layer 5 is of the 3M GTM series or 55 series.
The aerogel layer 1 has a thickness of 1-3.5mm and is made of silicon dioxide aerogel or aluminum oxide aerogel. The aerogel is an excellent heat insulation material, has the advantages of low heat conductivity coefficient, low density, high porosity and large specific surface area, is high in tensile strength and compressive strength, is very suitable for manufacturing a fireproof heat insulation plate in a lithium ion battery, can reduce spontaneous combustion of the lithium ion battery to the maximum extent, and improves the safety of new energy automobiles.
The heat insulation layer 2 comprises a first heat insulation layer and a second heat insulation layer;
the first heat insulation layer is arranged on the first surface of the aerogel layer 1;
the second thermal insulation layer is arranged on the second surface of the aerogel layer 1. The heat insulation layer 2 is pre-oxidized fiber, glass fiber, ceramic fiber or mica paper. Insulating layer 2 wraps up aerogel layer 1, provides sufficient resistance to compression and shock-absorbing capacity on the one hand, and on the other hand can also improve aerogel electricity core baffle's fire prevention heat-proof insulation performance.
The material of frame 3 is hard silica gel, and hardness more than or equal to 60 provides stable holding power for aerogel layer 1 and insulating layer 2, prevents to be extruded deformation. The fillets at the four corners of the frame 3 are more than or equal to 60 degrees, the positioning and supporting effects are achieved, and the lithium ion battery cell can be attached. The thickness of the frame 3 is greater than the thickness of the aerogel layer 1. Illustratively, the thickness of the frame 3 is 1.5mm and the thickness of the aerogel layer 1 is 1.3 mm.
In order to improve the stability of aerogel electricity core baffle, set up second glue film 6 between frame 3 and aerogel layer 1, be provided with second glue film 6 between frame 3 and insulating layer 2, second glue film 6 is used for being connected to frame 3 with aerogel layer 1 and insulating layer 2 on, prevents to take place the displacement between the three, improves the quality of product. The adhesive force of the second adhesive layer 6 is more than or equal to 10N/25mm, and the second adhesive layer 6 comprises 3M55236 adhesive and 3MGTM 708. Preferably, the second adhesive layer 6 is 3M55236 adhesive, and the 3M55236 adhesive has the advantages of good durability, good temperature resistance, strong water resistance, good rebound resilience, strong adhesion and the like.
The packaging film 4 includes a first packaging film and a second packaging film;
the first packaging film is arranged on one side of the heat insulation layer 2 and one side of the frame 3;
the second packaging film is arranged on the other side of the heat insulation layer 2 and the frame 3. Packaging film 4 mainly used encapsulates and seals aerogel layer 1, insulating layer 2 and frame 3, further improves aerogel electricity core baffle's resistance to compression and tensile property. The packaging film 4 is made of a PET film. The thickness of the packaging film 4 is 0.008 +/-0.001 mm, the packaging film 4 is required to have no glue failure, no impurities inside, smooth and flat surface and no obvious wrinkles.
Illustratively, the preparation method of the aerogel battery cell separator comprises the following specific steps:
coating silicon dioxide aerogel on the surface of the pre-oxidized fiber through equipment, and then respectively covering a piece of pre-oxidized fiber heat insulation layer 2 on two sides to manufacture a coil material;
conveying the coil stock to a set punching cutting machine for cutting to manufacture a rectangular finished product with a set size;
placing the rectangular finished product into a silica gel frame 3, coating 3M55236 glue at the inner edge of the silica gel frame 3, connecting the rectangular finished product to the silica gel frame 3 to manufacture an aerogel battery cell partition inner core, covering PET films on the upper and lower surfaces of the aerogel battery cell partition inner core, and carrying out hot pressing and vacuum-pumping treatment forming;
and adhering a cell double-sided adhesive tape on the surface of the PET to manufacture the aerogel cell partition board.
In order to obtain the heat insulation performance of the aerogel battery cell separator, the thermal conductivity coefficient of the prepared aerogel battery cell separator is tested (GB/T10295-. The data in the table show that the thermal conductivity of the aerogel battery cell separator at 25 ℃ is 0.018W/(m.cndot.), the thermal conductivity at 600 ℃ is 0.086W/(m.cndot.), and the thermal conductivity at 1000 ℃ is 0.15W/(m.cndot.), and the test data shows that the newly designed aerogel battery cell separator has excellent thermal insulation performance.
Table 1 aerogel core separator thermal conductivity data
| Temperature of | Thermal conductivity (W/(m. degree. C.)) |
| 25℃ | 0.018 |
| 200℃ | 0.045 |
| 400℃ | 0.064 |
| 600℃ | 0.086 |
| 800℃ | 0.12 |
| 1000℃ | 0.15 |
In order to actually detect the heat insulation performance of the aerogel battery cell partition plate, the manufactured aerogel battery cell partition plate is pasted between two square lithium ion battery cells, under the conditions that one of the lithium ion battery cells fails and explodes for spontaneous combustion, the temperatures of the spontaneous combustion lithium ion battery cells and the non-spontaneous combustion lithium ion battery cells are tested simultaneously, the temperature of the spontaneous combustion lithium ion battery cells reaches 1200 ℃ in a short time and is kept for about 5min, the temperature of the non-spontaneous combustion lithium ion battery cells does not exceed 137 ℃, and the spontaneous combustion phenomenon does not occur in the whole process. Actual detection can further prove that the aerogel battery cell partition plate has excellent heat insulation and spontaneous combustion prevention performance, and can effectively prevent the spontaneous combustion lithium ion battery cell from igniting the adjacent lithium ion battery cell, so that the spontaneous combustion problem of the whole lithium ion battery pack is solved, and the safety of a new energy vehicle is ensured.
The utility model discloses in the aerogel electricity core baffle that proposes set up insulating layer 2 in 1 both sides of aerogel layer, set up in silica gel frame 3 through the glue film to use packaging film 4 to encapsulate, paste the glue film in the 4 outsides of packaging film at last, prepare into aerogel electricity core baffle. Aerogel electric core baffle through optimal design has that heat-proof quality is strong, and thickness is thin, and simple structure easily installs, can completely cut off detonation, high temperature and the flame that 800 supplementarily 1200 ℃ of electric core became invalid and produce, and isolated protection time reaches more than 5min, effectively avoids single electric core spontaneous combustion to ignite whole lithium ion battery group.
In the description of the embodiments of the present invention, it should be understood that the terms "inside" and "outside" are used for indicating the orientation or the positional relationship based on the orientation or the positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.
Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. An aerogel cell separator, comprising: the air gel layer (1), the heat insulation layer (2), the frame (3), the packaging film (4) and the first glue layer (5);
the heat insulation layer (2) is arranged on two sides of the aerogel layer (1);
the aerogel layer (1) and the heat insulation layer (2) are arranged in the frame (3);
the packaging film (4) is arranged on the outer sides of the heat insulation layer (2) and the frame (3);
the first glue layers (5) are arranged on two sides of the packaging film (4);
the aerogel layer (1) is used for explosion prevention, flame retardance and fire prevention;
the heat insulation layer (2) is used for flame retardance and fire prevention;
the frame (3) is used for positioning and supporting;
the packaging film (4) is used for isolating air and ensuring the performance of the aerogel;
the first adhesive layer (5) is used for fixing the lithium ion battery cell and the aerogel battery cell partition board and absorbing shock.
2. The aerogel cell separator of claim 1, wherein the aerogel layer (1) has a thickness of 1-3.5 mm.
3. The aerogel cell separator according to claim 2, wherein the aerogel layer (1) is made of silica aerogel or alumina aerogel.
4. The aerogel cell separator according to claim 1, wherein the insulation layer (2) comprises a first insulation layer and a second insulation layer;
the first thermal insulation layer is arranged on the first surface of the aerogel layer (1);
the second heat insulation layer is arranged on the second surface of the aerogel layer (1).
5. The aerogel cell separator according to claim 4, wherein the thermal insulation layer (2) is pre-oxidized fibers, glass fibers, ceramic fibers or mica paper.
6. The aerogel cell separator according to claim 1, wherein the packaging film (4) comprises a first packaging film and a second packaging film;
the first packaging film is arranged on one side of the heat insulation layer (2) and one side of the frame (3);
the second packaging film is arranged on the other side of the heat insulation layer (2) and the frame (3).
7. The aerogel cell separator according to claim 2, wherein the frame (3) is thicker than the aerogel layer (1).
8. The aerogel cell separator according to claim 1, wherein the frame (3) is made of silica gel;
the hardness of the silica gel is greater than or equal to 60 degrees.
9. The aerogel cell separator according to claim 1 or 8, wherein the four corners of the frame (3) are rounded.
10. The aerogel cell separator of claim 1, further comprising: a second glue layer (6);
a second adhesive layer (6) is arranged between the frame (3) and the aerogel layer (1);
a second adhesive layer (6) is arranged between the frame (3) and the heat insulation layer (2);
and the second adhesive layer (6) is used for fixing the frame (3) and the aerogel layer (1) and fixing the frame (3) and the heat insulation layer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221018473.0U CN217158540U (en) | 2022-04-19 | 2022-04-19 | Aerogel electricity core baffle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221018473.0U CN217158540U (en) | 2022-04-19 | 2022-04-19 | Aerogel electricity core baffle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217158540U true CN217158540U (en) | 2022-08-09 |
Family
ID=82663366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221018473.0U Active CN217158540U (en) | 2022-04-19 | 2022-04-19 | Aerogel electricity core baffle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217158540U (en) |
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2022
- 2022-04-19 CN CN202221018473.0U patent/CN217158540U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xie Mingliang Inventor before: Xie Mingliang Inventor before: Kou Hongbin |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231027 Address after: Room 201, 2nd Floor, Building 9, Building 33, Zone 3, Gaobeidian Village, Gaobeidian Township, Chaoyang District, Beijing, 100025 Patentee after: Beijing huading ruixin technology Co.,Ltd. Address before: 101199 room 602, block a, poly daduhui, guanyin'an, Tongzhou District, Beijing Patentee before: Beijing Boyuan Hongda Technology Co.,Ltd. |