CN219696586U - Heat insulation buffer cushion, battery module, energy storage device and vehicle - Google Patents
Heat insulation buffer cushion, battery module, energy storage device and vehicle Download PDFInfo
- Publication number
- CN219696586U CN219696586U CN202320253858.3U CN202320253858U CN219696586U CN 219696586 U CN219696586 U CN 219696586U CN 202320253858 U CN202320253858 U CN 202320253858U CN 219696586 U CN219696586 U CN 219696586U
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- heat insulation
- pad
- cushion
- battery cell
- utility
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- 238000009413 insulation Methods 0.000 title claims abstract description 164
- 238000004146 energy storage Methods 0.000 title claims abstract description 29
- 239000012790 adhesive layer Substances 0.000 claims description 17
- 239000010410 layer Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 18
- 230000002829 reductive effect Effects 0.000 abstract description 9
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 230000002238 attenuated effect Effects 0.000 abstract description 3
- 230000010261 cell growth Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000007480 spreading Effects 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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 a heat insulation buffer pad, a battery module, an energy storage device and a vehicle, wherein the heat insulation buffer pad comprises: the heat insulation cushion comprises a first heat insulation cushion and a second heat insulation cushion, wherein the second heat insulation cushion surrounds the first heat insulation cushion, and the thickness of the first heat insulation cushion is smaller than that of the second heat insulation cushion so as to form a buffer groove on at least one side of the heat insulation cushion. Therefore, the peripheral side edge of the battery cell also has higher heat insulation effect, the heat exchange between adjacent battery cells is effectively reduced, so that the spreading speed of thermal runaway is reduced, meanwhile, the expansion of the battery cell can be absorbed through the buffer groove, the problem that the battery cell expansion is concentrated in a profit or the expansion force is overlarge is avoided, the battery cell is prevented from being attenuated in a circulating way too fast, the service life of the battery cell is prolonged, in the expansion process of the battery cell, the extrusion of the first heat insulation pad is smaller, the deformation of the first heat insulation pad is smaller, the heat insulation performance is reduced, the stable heat insulation performance can be kept, the heat insulation effect is ensured, and the expansion and the heat insulation performance of the battery cell can be considered.
Description
Technical Field
The utility model relates to the field of vehicles, in particular to a heat insulation buffer pad, a battery module, an energy storage device and a vehicle.
Background
CN215527796U discloses a heat insulation mechanism for electric core, wherein two ends of the heat insulation sheet are provided with supporting members, and the supporting members are used for inhibiting the compression of the heat insulation sheet when the electric core thermally expands so as to ensure the stability of heat insulation effect; CN209374617U discloses a heat insulation gasket, which is transparent in the middle and forms a containing space in the middle for containing the convex parts of the cells on both sides after expansion, and is heat-insulated by the heat insulation gasket.
However, the heat insulation performance of the supporting member is poor, and the heat insulation effect of the heat insulation sheet is poor, while the heat insulation gasket with the hollow structure can absorb a certain amount of cell expansion, but the heat exchange of the hollow area is large, and the heat insulation effect is poor, namely, in the prior art, the problem of cell expansion and the heat insulation performance are difficult to be compatible.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a heat insulation buffer pad, which can combine the expansion and heat insulation performance of the battery cell, ensure the stability of the heat insulation performance, effectively relieve the expansion of the battery cell, avoid the excessive expansion force, and improve the safety.
The utility model also provides a battery module with the heat insulation buffer cushion.
The utility model also provides an energy storage device with the battery module.
The utility model further provides a vehicle with the energy storage device.
According to an embodiment of the first aspect of the present utility model, the thermal insulation buffer pad is disposed between adjacent cells, the thermal insulation buffer pad includes: the heat insulation cushion comprises a first heat insulation cushion and a second heat insulation cushion, wherein the second heat insulation cushion surrounds the first heat insulation cushion, and the thickness of the first heat insulation cushion is smaller than that of the second heat insulation cushion so as to form a buffer groove on at least one side of the heat insulation cushion.
According to the heat insulation buffer pad provided by the embodiment of the utility model, the first heat insulation pad and the second heat insulation pad are arranged, so that the peripheral side edge of the battery core also has a higher heat insulation effect, the heat exchange between adjacent battery cores is effectively reduced, the thermal runaway spreading speed is reduced, meanwhile, the first heat insulation pad and the second heat insulation pad define the buffer groove, the battery core expansion can be absorbed through the buffer groove, the problem that the battery core expansion is concentrated in a profit or has overlarge expansion force is avoided, the problem that the battery core is excessively attenuated in a circulating manner is further avoided, the service life of the battery core is prolonged, the use safety is improved, in addition, the extrusion of the first heat insulation pad is smaller in the battery core expansion process, the deformation of the first heat insulation pad is smaller, the heat insulation performance is reduced, and the stable heat insulation performance can be kept, so that the heat insulation effect can be ensured, and the battery core expansion and the heat insulation performance can be considered.
According to some embodiments of the utility model, the second insulation pad is U-shaped or ring-shaped.
In some embodiments, the insulating cushion further comprises: and the bonding layer is laminated on the same side of the first heat insulation pad and the second heat insulation pad and is connected with the first heat insulation pad and the second heat insulation pad.
Further, the bonding layer is U-shaped or annular, and the bonding layer is connected with at least part of the first heat insulation pad.
In some embodiments, the deformation of the second insulation mat is less than the deformation of the first insulation mat.
According to a second aspect of the present utility model, a battery module includes: the battery cells are arranged in an array mode, and the heat insulation buffer pads are arranged adjacent to the battery cells.
In some embodiments, the area S1 of the surface of the insulating cushion opposite the cell and the area S2 of the first insulating cushion satisfy: 0.85S1S 2 is less than or equal to 0.95S1.
Further, the number of the bonding layers of the heat insulation buffer cushion is two, and the bonding layers are respectively connected with the adjacent battery cells.
An energy storage device according to an embodiment of the third aspect of the present utility model includes the battery module described in the above embodiment.
A vehicle according to a fourth aspect of the utility model comprises an energy storage device as described in the above embodiments.
The energy storage device according to the present utility model is briefly described as follows.
The motor according to the present utility model includes the battery module according to any one of the embodiments described above. Since the energy storage device according to the present utility model includes the battery module according to any one of the embodiments described above, the energy storage device according to the present utility model has higher safety in use and longer service life.
It should be noted that the energy storage device in the embodiment of the present utility model may be a battery pack, an energy storage cabinet, an energy storage container, or the like.
The vehicle according to the present utility model is briefly described below.
A vehicle according to the utility model comprises an energy storage device according to any of the embodiments described above. Since the vehicle according to the present utility model includes the energy storage device according to any one of the embodiments described above, the vehicle according to the present utility model has technical effects identical to those of the energy storage device described above, and will not be described in detail herein.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic illustration of the mating of a first insulation blanket with a second insulation blanket according to the present utility model;
FIG. 2 is a schematic view of an insulation cushion according to an embodiment of the present utility model;
fig. 3 is a schematic illustration of the mating of a thermal insulation buffer pad with a cell according to an embodiment of the utility model.
Reference numerals:
the thermal insulation buffer 100, the battery cell 200,
first heat insulating mat 10, second heat insulating mat 20, and adhesive layer 30.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
An insulation buffer pad 100, a battery module, an energy storage device, and a vehicle according to an embodiment of the present utility model are described below with reference to fig. 1 to 2.
As shown in fig. 1, according to the heat insulation buffer pad 100 of the first aspect of the present utility model, the heat insulation buffer pad 100 is disposed between adjacent cells 200, and the heat insulation buffer pad 100 includes: the first heat insulation pad 10 and the second heat insulation pad 20, the second heat insulation pad 20 is disposed around the first heat insulation pad 10, and the thickness of the first heat insulation pad 10 is smaller than that of the second heat insulation pad 20 to form a buffer groove at least one side of the heat insulation buffer pad 100.
Specifically, the projection profile of the first heat insulation pad 10 and the electric core 200 in the height direction, the width direction or the length direction is the same, the second heat insulation pad 20 is arranged around at least part of the edge of the first heat insulation pad 10, the thickness of the first heat insulation pad 10 is smaller than that of the second heat insulation pad 20, in the thickness direction, one side edge of the first heat insulation pad 10 and one side edge of the second heat insulation pad 20 in the thickness direction are flush, and the other side of the first heat insulation pad 10 and the second heat insulation pad 20 are aligned along the central line in the thickness direction, so that buffer grooves can be formed on two sides of the heat insulation buffer pad 100 in the thickness direction.
It can be appreciated that the first heat insulation pad 10 and the second heat insulation pad 20 have better heat insulation effect, and can effectively insulate heat transfer between two adjacent cells 200 to reduce the spreading speed of thermal runaway, and the buffer slot defined by the first heat insulation pad 10 and the second heat insulation pad 20 can effectively absorb thermal expansion generated in the charge and discharge processes of the cells 200, so as to avoid stress concentration caused by expansion of the cells 200, cause the cells 200 to decay fast, prolong the service life of the cells 200, and improve the use safety and the working reliability of the cells 200.
According to the heat insulation buffer pad 100 of the embodiment of the utility model, by arranging the first heat insulation pad 10 and the second heat insulation pad 20, the peripheral edge of the battery cell 200 also has a higher heat insulation effect, so that heat exchange between adjacent battery cells 200 is effectively reduced to reduce the propagation speed of thermal runaway, meanwhile, the first heat insulation pad 10 and the second heat insulation pad 20 define buffer grooves, and the battery cells 200 can be absorbed to expand through the buffer grooves, so that the problem that the battery cells 200 are concentrated in profit or the expansion force is overlarge is avoided, the problem that the battery cells 200 are excessively attenuated in a circulating manner is further avoided, the service life of the battery cells 200 is prolonged, the use safety is improved, in addition, the deformation of the first heat insulation pad 10 is small, the heat insulation performance is reduced, and the stable heat insulation performance can be kept, so that the heat insulation effect, namely the expansion and the heat insulation performance of the battery cells 200 can be considered.
According to some embodiments of the utility model, the second insulation blanket 20 is U-shaped or annular.
That is, in some embodiments, the second heat insulation pad 20 is U-shaped, in other embodiments, the second heat insulation pad 20 is annular, and the second heat insulation pad 20 is disposed around the first heat insulation pad 10, the thickness of the second heat insulation pad 20 is larger, and the second heat insulation pad 20 is used for bearing expansion at the peripheral edge of the battery cell 200, and the deformation of the second heat insulation pad 20 is smaller than that of the first heat insulation pad 10, so that the protection effect of the second heat insulation pad 20 with the U-shape or the annular shape on the first heat insulation pad 10 is better, and the heat insulation effect and the buffering effect of the heat insulation buffer pad 100 can be effectively improved.
As shown in fig. 2, in some embodiments, the insulation cushion 100 further comprises: and an adhesive layer 30, wherein the adhesive layer 30 is stacked on the same side of the first heat insulation pad 10 and the second heat insulation pad 20, and is connected with the first heat insulation pad 10 and the second heat insulation pad 20.
Specifically, the adhesive layers 30 are disposed on two sides of the first heat insulation pad 10 in the thickness direction, one side of the adhesive layer is used for connecting the first heat insulation pad 10 and the second heat insulation pad 20, and the other side of the adhesive layer is used for fixing the electric core 200, so that the fixing stability and reliability of the heat insulation buffer pad 100 and the electric core 200 can be improved, and the structural strength and stability of the heat insulation buffer pad 100 can be improved.
It can be appreciated that the adhesive layer 30 is U-shaped or ring-shaped, and the adhesive layer 30 is connected with at least a portion of the first heat insulation pad 10, so that the size of the adhesive layer 30 can be smaller while ensuring the connection stability and reliability of the adhesive layer 30 and the first heat insulation pad 10 and the adhesive layer 30 and the battery cell 200, so that the space of the buffer slot can be larger, the material cost of the adhesive layer 30 is lower while the expansion absorption and buffer effect on the battery cell 200 are better, and the cost of the heat insulation buffer pad 100 can be effectively reduced.
As shown in fig. 3, a battery module according to an embodiment of the second aspect of the present utility model includes: the battery cells 200 and the heat insulation cushion pads 100 are arranged in an array, and the heat insulation cushion pads 100 are arranged on the adjacent battery cells 200.
Specifically, the length edge and the height edge of the battery cell 200 define a large surface of the battery cell 200, the length edge of the battery cell 200 and the width edge of the battery cell 200 define an end surface of the battery cell 200, the width edge of the battery cell 200 and the height edge of the battery cell 200 define a side surface of the battery cell 200, the battery cells 200 arranged in an array form are opposite to each other, the side surfaces of the battery cells 200 of the adjacent battery cells 200 in each row of the battery cells 200 are opposite to each other, and the heat insulation buffer pad 100 is arranged between the large surfaces of the two battery cells 200 of at least the adjacent battery cells 200.
It will be appreciated that in some embodiments, the area S1 of the surface of the insulating cushion 100 opposite the cell 200, and the area S2 of the first insulating cushion 10 satisfy: 0.85S1S 2 is less than or equal to 0.95S1.
Like this, the area of first heat insulating mattress 10 can set up bigger, and buffering, the absorption effect to the inflation of electric core 200 are better, and the circulation decay speed of electric core 200 is slower, and life is longer, and the security is higher, and the thermal-insulated effect between the adjacent electric core 200 is better, and thermal runaway is spread the speed slower.
Preferably, the number of the adhesive layers 30 of the thermal insulation buffer pad 100 is two, and each of the adhesive layers is connected to the adjacent cells 200.
Thus, the heat insulation buffer pad 100 is connected with the two battery cells 200 positioned at both sides of the thickness thereof through the two adhesive layers 30, so that the fixing effect of the heat insulation buffer pad 100 in the battery module can be improved, and the structural stability and reliability of the battery module can be improved.
The energy storage device according to the present utility model is briefly described as follows.
The motor according to the present utility model includes the battery module according to any one of the embodiments described above. Since the energy storage device according to the present utility model includes the battery module according to any one of the embodiments described above, the energy storage device according to the present utility model has higher safety in use and longer service life.
It should be noted that the energy storage device in the embodiment of the present utility model may be a battery pack, an energy storage cabinet, an energy storage container, or the like.
The vehicle according to the present utility model is briefly described below.
A vehicle according to the utility model comprises an energy storage device according to any of the embodiments described above. Since the vehicle according to the present utility model includes the energy storage device according to any one of the embodiments described above, the vehicle according to the present utility model has technical effects identical to those of the energy storage device described above, and will not be described in detail herein.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
In the description of the utility model, a "first feature" or "second feature" may include one or more of the features.
In the description of the present utility model, "plurality" means two or more.
In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.
In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A thermal insulation buffer pad disposed between adjacent cells, comprising:
a first insulation mat;
the second heat insulation pad is arranged around the first heat insulation pad, and the thickness of the first heat insulation pad is smaller than that of the second heat insulation pad so as to form a buffer groove on at least one side of the heat insulation buffer pad.
2. The insulation cushion of claim 1, wherein the second insulation cushion is U-shaped or ring-shaped.
3. The insulating cushion of claim 1, further comprising: and the bonding layer is laminated on the same side of the first heat insulation pad and the second heat insulation pad and is connected with the first heat insulation pad and the second heat insulation pad.
4. The insulation cushion of claim 3, wherein the adhesive layer is U-shaped or annular and is connected to at least a portion of the first insulation cushion.
5. The insulation cushion of any one of claims 1-4, wherein the deformation of the second insulation cushion is less than the deformation of the first insulation cushion.
6. A battery module, comprising:
the battery cells are arranged in an array manner;
the insulation cushion of any one of claims 1-5, disposed adjacent the cells.
7. The battery module of claim 6, wherein an area S1 of a surface of the heat insulation cushion opposite the battery cell and an area S2 of the first heat insulation cushion satisfy: 0.85S1S 2 is less than or equal to 0.95S1.
8. The battery module of claim 7, wherein the number of the adhesive layers of the heat insulation cushion is two and is connected to the adjacent cells, respectively.
9. An energy storage device comprising a battery module according to any one of claims 6-8.
10. A vehicle comprising the energy storage device of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320253858.3U CN219696586U (en) | 2023-02-20 | 2023-02-20 | Heat insulation buffer cushion, battery module, energy storage device and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320253858.3U CN219696586U (en) | 2023-02-20 | 2023-02-20 | Heat insulation buffer cushion, battery module, energy storage device and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219696586U true CN219696586U (en) | 2023-09-15 |
Family
ID=87945585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320253858.3U Active CN219696586U (en) | 2023-02-20 | 2023-02-20 | Heat insulation buffer cushion, battery module, energy storage device and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219696586U (en) |
-
2023
- 2023-02-20 CN CN202320253858.3U patent/CN219696586U/en active Active
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