CN212257517U - Buffering heat insulating plate and battery pack - Google Patents
Buffering heat insulating plate and battery pack Download PDFInfo
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- CN212257517U CN212257517U CN202021226268.4U CN202021226268U CN212257517U CN 212257517 U CN212257517 U CN 212257517U CN 202021226268 U CN202021226268 U CN 202021226268U CN 212257517 U CN212257517 U CN 212257517U
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- buffer heat
- buffer
- heat insulation
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- battery pack
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Abstract
The utility model discloses a buffer heat insulation plate and a battery pack, wherein the buffer heat insulation plate comprises a first buffer heat insulation layer, a supporting layer and a second buffer heat insulation layer which are sequentially stacked; the supporting layer is provided with a plurality of energy-absorbing parts, the energy-absorbing parts protrude out of the supporting layer towards the direction of the first buffer heat-insulating layer, and the energy-absorbing parts are sunken in the supporting layer towards the direction of the second buffer heat-insulating layer; the first buffer heat insulation layer and the second buffer heat insulation layer are both made of heat insulation materials; the battery pack comprises the buffering heat insulation plate. The utility model provides a pair of buffering heat insulating board and battery package can receive mechanical shock at the battery package, and effective slowly-releasing strikes kinetic energy, reduces electric core because of the probability that mechanical shock takes place thermal runaway, can be when electric core thermal runaway simultaneously, can insulate against heat and fire-retardant, reduces the battery package and appears the risk of the thermal diffusion phenomenon such as fire or explosion to improve the security of battery package.
Description
Technical Field
The utility model relates to a battery technology field, concretely relates to buffering heat insulating board and battery package.
Background
Batteries are currently being popularized and applied to many industries as a novel energy source. As the number of batteries used in various industries is larger and larger, and the number of the batteries which have faults is increased along with the increase of the service time, the situations of combustion and explosion of the batteries are more and more. In the use of new forms of energy electric vehicle, when the battery takes place by the circumstances such as extrusion, impact or collision, the battery thermal runaway appears easily and leads to incident such as explosion even, directly threatens passenger's life and property safety, also can cause the destruction to the environment simultaneously.
Disclosure of Invention
In view of this, the utility model aims at overcoming the defect among the prior art, provide a buffering heat insulating board and battery package, can receive mechanical shock at the battery package, effective slowly-releasing strikes kinetic energy, reduces electric core and takes place the probability of thermal runaway because of mechanical shock, can insulate against heat and fire-retardant when electric core thermal runaway simultaneously, reduces the risk that thermal diffusion phenomenon such as the battery package appears catching fire or explodes to improve the security of battery package.
The utility model discloses a buffer heat insulation plate, which comprises a first buffer heat insulation layer, a supporting layer and a second buffer heat insulation layer which are sequentially stacked; the supporting layer is provided with a plurality of energy-absorbing parts, the energy-absorbing parts protrude out of the supporting layer towards the direction of the first buffer heat-insulating layer, and the energy-absorbing parts are sunken in the supporting layer towards the direction of the second buffer heat-insulating layer; the first buffer heat insulation layer and the second buffer heat insulation layer are both made of heat insulation materials.
Furthermore, a plurality of groove parts are arranged on the first buffer heat insulation layer, and the groove parts correspond to the energy absorption parts one by one; the second buffer heat-insulation layer is provided with a plurality of convex parts, and the plurality of convex parts correspond to the plurality of energy-absorbing parts one by one; the first buffer heat insulation layer and the second buffer heat insulation layer are tightly attached to the supporting layer.
Furthermore, the energy absorbing parts are all cylindrical, and the energy absorbing parts are uniformly distributed on the supporting layer in rows and columns.
Further, the supporting layer is made of an aluminum alloy material or a stainless steel material.
Further, the first buffer heat insulation layer and the second buffer heat insulation layer are connected with the supporting layer through an adhesive, and the adhesive is a metal high-temperature adhesive.
Further, the heat insulation material is aerogel or ceramic fiber material.
The utility model also provides a battery package, include as above the buffering heat insulating board.
Further, the battery pack comprises a battery pack bottom plate and a plurality of battery modules; the battery modules comprise rectangular module frames, module mounting plates arranged at the bottoms of the rectangular module frames and a plurality of battery cores arranged in the rectangular module frames, and the battery modules are fixed on the battery pack bottom plate through the module mounting plates; the rectangular module frame is formed by sequentially surrounding four buffer heat insulation plates.
Furthermore, the second buffer heat insulation layers of the four buffer heat insulation plates face towards the inside of the rectangular module frame, and the first buffer heat insulation layers of the four buffer heat insulation plates face towards the outside of the rectangular module frame.
As another embodiment, the battery pack comprises a battery pack frame, a plurality of battery cells and a plurality of buffer heat insulation plates, wherein the plurality of buffer heat insulation plates are arranged in the battery pack frame in a criss-cross manner, and the plurality of buffer heat insulation plates divide the interior of the battery pack frame into a plurality of battery cell installation cavities for installing the battery cells.
The utility model has the advantages that: the utility model discloses a cushion heat insulating board and battery package, the supporting layer can provide the support for first buffering insulating layer and second buffering insulating layer, and when the battery package received mechanical shock, energy-absorbing portion on the supporting layer can take place to warp because of bearing the impact, the in-process of deformation absorbs impact energy, can effective slowly-releasing impact kinetic energy, reduce electric core and take place the probability of thermal runaway because of mechanical shock, simultaneously when electric core thermal runaway, the first buffering insulating layer and the second buffering insulating layer that adopt thermal insulation material to make can insulate against heat and fire-retardant, reduce the risk that thermal diffusion phenomena such as fire or explosion appear in the battery package, thereby improve the security of battery package.
Drawings
The invention will be further described with reference to the following figures and examples:
FIG. 1 is a schematic cross-sectional view of a buffering heat insulation board of the present invention;
FIG. 2 is a schematic structural view of the buffering heat insulation board of the present invention;
fig. 3 is a schematic cross-sectional view of a support layer of the present invention;
fig. 4 is a schematic structural diagram of the supporting layer of the present invention;
fig. 5 is a first schematic structural diagram of a battery pack according to the present invention;
fig. 6 is a schematic structural view of the battery module in fig. 5;
fig. 7 is a schematic structural diagram of a battery pack according to the present invention.
Description of the main reference numerals: 10-a buffer heat insulation plate, 11-a first buffer heat insulation layer, 111-a groove part, 12-a supporting layer, 121-an energy absorption part, 13-a second buffer heat insulation layer, 131-a bulge part, 20-an electric core, 30-a battery pack bottom plate, 40-a battery module, 41-a rectangular module frame, 42-a module mounting plate and 50-a battery pack frame.
Detailed Description
As shown in fig. 1 to 4, a cushioning and heat insulating board 10 in the present embodiment includes a first cushioning and heat insulating layer 11, a supporting layer 12, and a second cushioning and heat insulating layer 13, which are sequentially stacked; a plurality of energy absorbing parts 121 are arranged on the supporting layer 12, the energy absorbing parts 121 protrude out of the supporting layer 12 towards the direction of the first buffer heat-insulating layer 11, and the energy absorbing parts 121 are recessed in the supporting layer 12 towards the direction of the second buffer heat-insulating layer 13; the first buffer heat insulation layer 11 and the second buffer heat insulation layer 13 are both made of heat insulation materials. The supporting layer 12 can provide support for the first buffer heat-insulating layer 11 and the second buffer heat-insulating layer 13, and when the battery pack receives mechanical impact, the energy-absorbing part 121 on the supporting layer 12 can deform due to impact, the impact energy is absorbed in the deformation process, the impact kinetic energy can be effectively and slowly released, the probability of thermal runaway of the battery cell 20 due to mechanical impact is reduced, meanwhile, when the battery cell 20 is thermally runaway, the first buffer heat-insulating layer 11 and the second buffer heat-insulating layer 13 made of heat-insulating materials can insulate heat and resist flame, the risk of thermal diffusion phenomena such as fire or explosion of the battery pack is reduced, and therefore the safety of the battery pack is improved.
In this embodiment, as shown in fig. 1, fig. 2 and fig. 6, a plurality of groove portions 111 are provided on the first buffer heat insulation layer 11, and the plurality of groove portions 111 correspond to the plurality of energy absorbing portions 121 one to one; the second buffer heat insulation layer 13 is provided with a plurality of protrusions 131, and the plurality of protrusions 131 correspond to the plurality of energy absorption parts 121 one by one; the first buffer heat-insulation layer 11 and the second buffer heat-insulation layer 13 are tightly attached to the support layer 12. First buffering insulating layer 11 and second buffering insulating layer 13 all conform closely and laminate on supporting layer 12, and joint strength is high, prevents the separation of three, and the form of this kind of unsmooth combination can also play the positioning action when processing simultaneously, makes processing more simple and convenient.
In this embodiment, as shown in fig. 2 and 4, the plurality of energy absorbing portions 121 are all cylindrical, and the energy absorbing portions 121 are processed by a stamping process, and are easier to form when cylindrical stamping is adopted; a plurality of energy-absorbing portions 121 are uniformly arranged on support layer 12 in rows and columns, and when buffer heat-insulating board 10 is placed between two battery cores 20 and the battery pack is impacted, two battery cores 20 may be close to each other due to external force, and energy-absorbing portions 121 uniformly arranged in rows and columns can disperse the pressure of battery cores 20 on buffer heat-insulating board 10, so as to prevent battery cores 20 from being damaged due to overlarge local pressure.
In this embodiment, the supporting layer 12 is made of an aluminum alloy material or a stainless steel material. The support layer 12 provides support for the first and second buffer and insulation layers 11 and 13, so that the support layer 12 needs to be made of an aluminum alloy material or a stainless steel material to ensure sufficient strength.
In this embodiment, the first buffer thermal insulation layer 11 and the second buffer thermal insulation layer 13 are connected to the support layer 12 through an adhesive, where the adhesive is a metal high-temperature adhesive, preferably a metal high-temperature adhesive that can withstand a temperature of 1300 ℃ or higher, and thus the adhesive is prevented from being deactivated due to a temperature increase of the battery pack.
In this embodiment, the heat insulating material is aerogel or ceramic fiber material. The aerogel can be SiO2Aerogel, TiO2Aerogel, Fe3O4Aerogel, glass fiber reinforced SiO2Aerogel and basalt fiber reinforced SiO2Aerogel or aramid fiber reinforced SiO2An aerogel; the propagation speed of the vibration wave in the nano-scale holes of the aerogel is very low, and the propagation speed of the sound wave in the aerogel is about 110m/s, so that the aerogel can effectively reduce the kinetic energy of mechanical impact and absorb the impact force and the vibration wave generated by the mechanical impact; the density of the aerogel was 100kg/m3The weight of the buffering heat insulation board 10 can be reduced; the thermal conductivity coefficient of the aerogel is 0.013W/m.K, and the heat generated by thermal runaway of the battery can be blocked. The ceramic fiber material can be non-oxide ceramic fiber material (such as silicon carbide fiber and carbon fiber) or oxide ceramic fiber material (such as aluminum silicate fiber and aluminum oxide fiber), and the ceramic fiber material has good heat insulation performance.
A battery pack in the present embodiment includes the buffering heat insulating board 10 as described above.
In the present embodiment, as shown in fig. 5 and 6, the battery pack includes a battery pack bottom plate 30 and a plurality of battery modules 40; the plurality of battery modules 40 each include a rectangular module frame 41, a module mounting plate 42 disposed at the bottom of the rectangular module frame 41, and a plurality of battery cells 20 disposed in the rectangular module frame 41, and the plurality of battery modules 40 are all fixed to the battery pack bottom plate 30 through the module mounting plate 42; the rectangular module frame 41 is formed by sequentially enclosing four buffer heat insulation boards 10. The module mounting plate 42 is provided with mounting holes for connecting with the battery pack bottom plate 30, nine battery modules 40 are provided in the present embodiment, the number of the battery cells 20 in each battery module 40 is six, and the six battery cells 20 are arranged in the rectangular module frame 41 in a single-row six-column manner. The arrangement form of battery package bottom plate 30 and a plurality of battery module 40 is applicable to the space sufficient, and arranging of battery module 40 is comparatively dispersed to every battery module 40's electric core 20 is less in quantity, therefore every battery module 40 only needs four buffering heat insulating boards 10 to fix a position a plurality of electric core 20 and can be in order to satisfy the thermal-insulated demand of buffering.
In this embodiment, as shown in fig. 6, the second buffer heat insulation layers 13 of the four buffer heat insulation boards 10 face the inside of the rectangular module frame 41, and the first buffer heat insulation layers 11 of the four buffer heat insulation boards 10 face the outside of the rectangular module frame 41. The protruding direction of energy-absorbing portion 121 all faces the outside of rectangular module frame 41, can earlier contact with bellied energy-absorbing portion 121 when the battery package receives the impact, and energy-absorbing portion 121 on supporting layer 12 can just take place to warp before the battery bears the impact, and the impact energy is absorbed to the deformation in-process, can effectively slowly-release impact kinetic energy, reduces electric core 20 because of the probability that mechanical shock takes place the thermal runaway.
As another embodiment, as shown in fig. 7, a battery pack includes a battery pack frame 50, a plurality of battery cells 20, and a plurality of buffer heat insulation boards 10, wherein the plurality of buffer heat insulation boards 10 are arranged in the battery pack frame 50 in a criss-cross manner, and the plurality of buffer heat insulation boards 10 divide the interior of the battery pack frame 50 into a plurality of cell installation cavities for installing the battery cells 20. In the present embodiment, 36 battery cells 20 are provided, and the 36 battery cells 20 are arranged in the battery pack frame 50 in a four-row nine-column manner, because the arrangement of the battery cells 20 is compact, and the requirement for buffer heat insulation is higher, a form that a plurality of buffer heat insulation boards 10 are arranged in the battery pack frame 50 in a criss-cross manner is required, so that each battery cell 20 is not in direct contact, when the battery cells 20 are out of control due to heat, the heat insulation and flame retardant capabilities of the buffer heat insulation boards 10 are stronger, the risk of the battery pack causing heat diffusion phenomena such as fire or explosion is reduced, and the safety of the battery pack is improved.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (10)
1. A cushioned insulation panel characterized by: the heat-insulating material comprises a first buffer heat-insulating layer (11), a supporting layer (12) and a second buffer heat-insulating layer (13) which are sequentially stacked; a plurality of energy absorbing parts (121) are arranged on the supporting layer (12), the energy absorbing parts (121) protrude out of the supporting layer (12) towards the direction of the first buffer heat-insulating layer (11), and the energy absorbing parts (121) are recessed in the supporting layer (12) towards the direction of the second buffer heat-insulating layer (13); the first buffer heat insulation layer (11) and the second buffer heat insulation layer (13) are both made of heat insulation materials.
2. A cushioned heat shield as set forth in claim 1, wherein: the first buffer heat-insulation layer (11) is provided with a plurality of groove parts (111), and the groove parts (111) correspond to the energy-absorbing parts (121) one by one; the second buffer heat-insulation layer (13) is provided with a plurality of protrusions (131), and the plurality of protrusions (131) correspond to the plurality of energy-absorbing parts (121) one by one; the first buffer heat-insulation layer (11) and the second buffer heat-insulation layer (13) are tightly attached to the supporting layer (12).
3. A cushioned heat shield as set forth in claim 1, wherein: the energy absorbing parts (121) are all cylindrical, and the energy absorbing parts (121) are uniformly arranged on the supporting layer (12) in rows and columns.
4. A cushioned heat shield as set forth in claim 1, wherein: the supporting layer (12) is made of aluminum alloy or stainless steel.
5. A cushioned heat shield as set forth in claim 1, wherein: the first buffer heat-insulation layer (11) and the second buffer heat-insulation layer (13) are connected with the supporting layer (12) through an adhesive, and the adhesive is a metal high-temperature adhesive.
6. A cushioned heat shield as set forth in claim 1, wherein: the heat insulating material is aerogel or ceramic fiber material.
7. A battery pack, comprising: comprising a cushioned insulation panel as claimed in any one of claims 1 to 6.
8. The battery pack according to claim 7, wherein: comprises a battery pack bottom plate (30) and a plurality of battery modules (40); the battery modules (40) comprise rectangular module frames (41), module mounting plates (42) arranged at the bottoms of the rectangular module frames (41) and a plurality of battery cores (20) arranged in the rectangular module frames (41), and the battery modules (40) are fixed on the battery pack bottom plate (30) through the module mounting plates (42); the rectangular module frame (41) is formed by sequentially surrounding four buffer heat insulation plates.
9. The battery pack according to claim 8, wherein: the second buffer heat insulation layers (13) of the four buffer heat insulation plates face towards the inside of the rectangular module frame (41), and the first buffer heat insulation layers (11) of the four buffer heat insulation plates face towards the outside of the rectangular module frame (41).
10. The battery pack according to claim 7, wherein: the battery pack frame comprises a battery pack frame (50), a plurality of battery cores (20) and a plurality of buffer heat insulation plates, wherein the buffer heat insulation plates are arranged in the battery pack frame (50) in a criss-cross mode, and the buffer heat insulation plates are used for dividing the interior of the battery pack frame (50) into a plurality of battery core installation cavities for installing the battery cores (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021226268.4U CN212257517U (en) | 2020-06-29 | 2020-06-29 | Buffering heat insulating plate and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021226268.4U CN212257517U (en) | 2020-06-29 | 2020-06-29 | Buffering heat insulating plate and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212257517U true CN212257517U (en) | 2020-12-29 |
Family
ID=73988205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021226268.4U Active CN212257517U (en) | 2020-06-29 | 2020-06-29 | Buffering heat insulating plate and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212257517U (en) |
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2020
- 2020-06-29 CN CN202021226268.4U patent/CN212257517U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee after: Deep Blue Automotive Technology Co.,Ltd. Address before: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee before: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |