CN212874605U - Battery heating film structure and battery module - Google Patents
Battery heating film structure and battery module Download PDFInfo
- Publication number
- CN212874605U CN212874605U CN202021982958.2U CN202021982958U CN212874605U CN 212874605 U CN212874605 U CN 212874605U CN 202021982958 U CN202021982958 U CN 202021982958U CN 212874605 U CN212874605 U CN 212874605U
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- battery
- heating
- heating film
- bulge
- heating membrane
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 118
- 239000012528 membrane Substances 0.000 claims abstract description 53
- 238000002955 isolation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 4
- 210000004027 cell Anatomy 0.000 abstract description 26
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000004888 barrier function Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
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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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Abstract
The utility model relates to a new energy battery technical field specifically discloses a battery heating membrane structure and battery module. The utility model provides a be equipped with a plurality of bulges on battery heating membrane structure's the heating membrane body, the bulge can prolong the length of heating membrane, and when the battery cell inflation, the bulge extends and enables the battery heating membrane elongated to avoided heating membrane body fracture to cause the problem of circuit short circuit, also avoided heating membrane body and battery cell surface to break away from the problem that the heating membrane body is empty to burn. The utility model provides a battery module adopts foretell electrical heating membrane structure, and the bulge setting is in two adjacent battery cell's clearance department, and the heating film body is connected with battery cell, and when battery cell inflation, the bulge enables battery heating membrane and becomes long, and the heating film is difficult for splitting, and the heating film body is difficult for breaking away from with the battery cell surface, has improved the security that battery module used, has prolonged battery module's life.
Description
Technical Field
The utility model relates to a new energy battery technical field especially relates to a battery heating membrane structure and battery module.
Background
At present, the heating film on the battery module generally adopts a flat sheet structure, in the use process of the lithium battery, because the change of the thickness of a battery pole piece and the internal gas generation of a single battery can cause the expansion deformation of different degrees of the surface of the single battery, the deformation can cause the separation of the heating film tightly attached to the surface of the single battery from the battery, even lead to the breakage of the heating film, and the heating film is not contacted with a heat-conducting medium after being separated from the single battery, the empty burning is easy to occur when heating, the thermal runaway is easy to cause, the great risk is caused to the use of the battery module, the circuit short circuit can be caused by the breakage of the heating film, and the battery module can.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a battery heating membrane structure has solved because the monomer battery inflation leads to the cracked problem of electrical heating membrane.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a battery heating membrane structure, includes the heating membrane body, be equipped with the heating member on the heating membrane body, the interval is equipped with a plurality of orientations on the heating membrane body the protruding bulge of establishing of one side of heating membrane body, the bulge is followed the width of heating membrane body extends, just the bulge in the opposite side formation recess of heating membrane body.
Preferably, the protruding part is a bent film body, and two ends of the film body are connected with the heating film body.
Preferably, the protrusion is an arc-shaped membrane body.
Preferably, the distance between two adjacent convex parts is equal to the thickness of the single battery.
Preferably, the protruding part is provided with a long hole.
Preferably, the protrusion is integrally formed with the heating film body.
Preferably, the protrusion and the heating film body are formed by a hot press forming process.
Preferably, the heating film body comprises two layers of insulation isolation films which are arranged in an overlapping mode, and the heating element is arranged between the two layers of insulation isolation films;
the protruding part comprises two layers of insulation isolation films which are arranged in an overlapping mode.
An object of the utility model is to provide a battery module still, the difficult fracture of heating film has improved the security that battery module used, has prolonged battery module's life.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a battery module, includes a plurality of battery cells that arrange the setting in proper order and as above battery heating membrane structure, heat the membrane body with battery cell connects, just the bulge is placed adjacent two battery cell's clearance department.
Preferably, the heating film body is connected with the side surface of the unit cell by means of adhesion.
The utility model has the advantages that:
the utility model provides a be equipped with a plurality of bulges on battery heating membrane structure's the heating membrane body, the bulge can prolong the length of heating membrane, and when the battery cell inflation, the bulge extends and enables the battery heating membrane elongated to avoided heating membrane body fracture to cause the problem of circuit short circuit, also avoided heating membrane body and battery cell surface to break away from the problem that the heating membrane body is empty to burn.
The utility model provides a battery module adopts foretell electrical heating membrane structure, and the bulge setting is in two adjacent battery cell's clearance department, and the heating film body is connected with battery cell, and when battery cell inflation, the bulge enables battery heating membrane and becomes long, and the heating film is difficult for splitting, and the heating film body is difficult for breaking away from with the battery cell surface, has improved the security that battery module used, has prolonged battery module's life.
Drawings
Fig. 1 is a front view of a battery heating film structure provided by an embodiment of the present invention;
fig. 2 is a top view of a battery heating film structure provided by an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a battery module according to an embodiment of the present invention.
In the figure:
1. heating the membrane body; 2. a projection; 3. a strip hole; 100. a single battery.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The battery heating film in the prior art is generally a flat sheet structure, and in the use process of a battery module adopting the battery heating film, due to the change of the thickness of a battery pole piece and the internal gas generation of a single battery, the battery surface can be subjected to different degrees of expansion deformation, and further the surface of the single battery of the battery heating film is separated from the surface of the single battery or even breaks.
Specifically, as shown in fig. 1-3, in the present embodiment, the battery heating film structure includes a heating film body 1, a heating element is disposed on the heating film body 1, a plurality of protruding portions 2 protruding toward one side of the heating film body 1 are disposed on the heating film body 1 at intervals, the protruding portions 2 extend along the width of the heating film body 1, and the protruding portions 2 form a groove on the other side of the heating film body 1. Be equipped with a plurality of bulges 2 on the heating film body 1 in this embodiment, bulge 2 can prolong the length of heating film, and when battery cell 100 expanded, bulge 2 extended and enabled the battery heating film elongate to avoided heating film body 1 fracture to cause the problem of circuit short circuit, also avoided heating film body 1 and battery cell 100 surface to break away from the problem that heating film body 1 air-fired appears.
In this embodiment, the protrusion 2 is a bent film body, and two ends of the film body are connected to the heating film body 1. The protruding part 2 is bent, and when the unit battery 100 expands, the protruding part 2 can be stretched to extend the length of the heating film body 1.
Further, the bulge 2 is an arc-shaped film body, the structure is simple, the processing is convenient, and when the heating film body 1 is stretched, the arc-shaped film body is not easy to break, and the structural strength of the battery heating film is improved. The arc setting of the projections 2 is different for different material membrane bodies, and is not limited herein. In other embodiments, the protrusion 2 may be a triangular membrane, a wave-shaped membrane, or a rectangular membrane, which is not limited herein.
Because the bulge 2 is not connected with the single battery 100, when installing the heating film body 1 on the battery module, the bulge 2 is arranged between two adjacent single batteries 100, the bulge 2 is not connected with the single battery 100, when the single battery 100 expands, the distance between the adjacent single batteries 100 is increased, the bulge 2 arranged between the two single batteries 100 is stretched, and the separation of the heating film body 1 and the single battery 100 and the fracture of the heating film body 1 are effectively avoided. Therefore, the distance between two adjacent protrusions 2 is equal to the thickness of the single battery 100, which not only meets the above requirements, but also ensures the maximum contact area between the heating film body 1 and the single battery 100, and improves the heating efficiency.
In the present embodiment, the protruding portion 2 is integrally formed with the heating film body 1, and the connection strength of the protruding portion 2 and the heating film body 1 is improved. Furthermore, the convex part 2 and the heating film body 1 are processed and formed through a hot press forming process, the processing process is simple, and the production cost is low.
Because bulge 2 and heating film body 1 integrated into one piece, consequently, heating film body 1 includes the insulating barrier film that two-layer stack set up, is equipped with the heating member between the two-layer insulating barrier film. The bulge 2 includes the insulating barrier film that two-layer stack set up, and the insulating barrier film of bulge 2 and the insulating barrier film integrated into one piece that heats membrane body 1, but because bulge 2 does not contact with battery cell 100, consequently in order to avoid empty fever, set up the heating member on heating membrane body 1, and does not set up the heating member on bulge 2, has further improved the security that battery module used.
In this embodiment, the protruding portion 2 is provided with the strip hole 3, and when the heating film body 1 is mounted on the battery module, the protruding portion 2 can be accurately disposed at the gap between two adjacent single batteries 100 through the strip hole 3, so that the position setting accuracy of the protruding portion 2 is improved.
The embodiment also provides a battery module, which comprises a plurality of single batteries 100 arranged in sequence and the battery heating film structure, wherein the heating film body 1 is connected with the single batteries 100, and the protruding part 2 is arranged at the gap between two adjacent single batteries 100. The battery module that this embodiment provided adopts foretell electrical heating membrane structure, bulge 2 sets up the clearance department at two adjacent battery cells 100, it is connected with battery cell 100 to heat membrane body 1, when battery cell 100 expands, interval between adjacent battery cell 100 increases, bulge 2 enables to heat membrane body 1 and becomes long along with the increase of battery cell 100 interval, it is difficult for fracture to heat membrane body 1, it is difficult for breaking away from with battery cell 100 surface to heat membrane body 1, the security that the battery module used has been improved, the life of battery module has been prolonged.
Further, the heating film body 1 is connected to the side surface of the battery cell 100 by bonding, and the connection is simple and easy to implement.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a battery heating membrane structure, its characterized in that, includes heating membrane body (1), be equipped with the heating member on heating membrane body (1), the interval is equipped with a plurality of orientations on heating membrane body (1) protruding bulge (2) of establishing of one side of heating membrane body (1), bulge (2) are followed the width extension of heating membrane body (1), just bulge (2) in the opposite side of heating membrane body (1) forms the recess.
2. The battery heating film structure according to claim 1, wherein the protrusion (2) is a bent film body, and both ends of the film body are connected to the heating film body (1).
3. The battery heating membrane structure according to claim 2, wherein the protrusions (2) are arc-shaped membrane bodies.
4. The battery heating film structure according to claim 1, wherein the distance between two adjacent protrusions (2) is equal to the thickness of a single battery (100).
5. The battery heating film structure according to claim 1, wherein the protrusion (2) is provided with a long hole (3).
6. The battery heating film structure according to any one of claims 1 to 5, wherein the protrusions (2) are integrally formed with the heating film body (1).
7. The battery heating film structure according to claim 6, wherein the protrusion (2) and the heating film body (1) are formed by a hot press forming process.
8. The battery heating film structure according to claim 6, wherein the heating film body (1) comprises two layers of insulating isolation films arranged in an overlapping manner, and the heating element is arranged between the two layers of insulating isolation films;
the bulge (2) comprises two layers of insulation isolation films which are arranged in an overlapping mode.
9. A battery module, comprising a plurality of single batteries (100) arranged in sequence and a battery heating film structure according to any one of claims 1 to 8, wherein the heating film body (1) is connected with the single batteries (100), and the protruding part (2) is arranged at the gap between two adjacent single batteries (100).
10. The battery module according to claim 9, wherein the heating film body (1) is connected to the side of the unit cell (100) by means of adhesion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021982958.2U CN212874605U (en) | 2020-09-11 | 2020-09-11 | Battery heating film structure and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021982958.2U CN212874605U (en) | 2020-09-11 | 2020-09-11 | Battery heating film structure and battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212874605U true CN212874605U (en) | 2021-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021982958.2U Active CN212874605U (en) | 2020-09-11 | 2020-09-11 | Battery heating film structure and battery module |
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| Country | Link |
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| CN (1) | CN212874605U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113571809A (en) * | 2021-07-15 | 2021-10-29 | 北京海博思创科技股份有限公司 | Battery pack and vehicle |
| CN115189074A (en) * | 2022-09-09 | 2022-10-14 | 深圳海润新能源科技有限公司 | Battery module and battery pack |
| WO2023185380A1 (en) * | 2022-04-01 | 2023-10-05 | 宁德时代新能源科技股份有限公司 | Battery module, battery and electrical device |
| WO2024036771A1 (en) * | 2022-08-15 | 2024-02-22 | 江苏时代新能源科技有限公司 | Heating device, battery, and electrical device |
-
2020
- 2020-09-11 CN CN202021982958.2U patent/CN212874605U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113571809A (en) * | 2021-07-15 | 2021-10-29 | 北京海博思创科技股份有限公司 | Battery pack and vehicle |
| WO2023185380A1 (en) * | 2022-04-01 | 2023-10-05 | 宁德时代新能源科技股份有限公司 | Battery module, battery and electrical device |
| WO2024036771A1 (en) * | 2022-08-15 | 2024-02-22 | 江苏时代新能源科技有限公司 | Heating device, battery, and electrical device |
| CN115189074A (en) * | 2022-09-09 | 2022-10-14 | 深圳海润新能源科技有限公司 | Battery module and battery pack |
| CN115189074B (en) * | 2022-09-09 | 2022-12-09 | 深圳海润新能源科技有限公司 | Battery module and battery pack |
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