CN215496876U - Battery top cap subassembly, battery case and battery package - Google Patents
Battery top cap subassembly, battery case and battery package Download PDFInfo
- Publication number
- CN215496876U CN215496876U CN202121713507.3U CN202121713507U CN215496876U CN 215496876 U CN215496876 U CN 215496876U CN 202121713507 U CN202121713507 U CN 202121713507U CN 215496876 U CN215496876 U CN 215496876U
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- China
- Prior art keywords
- battery
- top cover
- utmost point
- point post
- cover plate
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- 238000007789 sealing Methods 0.000 claims abstract description 33
- 238000010073 coating (rubber) Methods 0.000 claims abstract description 20
- 238000003825 pressing Methods 0.000 claims description 12
- 239000004033 plastic Substances 0.000 claims description 11
- 238000005538 encapsulation Methods 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 4
- 230000008439 repair process Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a battery top cover assembly, a battery shell and a battery pack, and relates to the technical field of battery sealing. This battery top cap subassembly includes the lamina tecti, is equipped with the step mounting hole on the lamina tecti, and battery top cap subassembly still includes utmost point post seal assembly, and utmost point post seal assembly includes clamping ring, sealing washer and utmost point post rubber coating, and the clamping ring sets up in step mounting hole department, and utmost point post rubber coating wraps up in the periphery of utmost point post, utmost point post rubber coating and clamping ring fixed connection, and sealing washer elasticity butt sets up between clamping ring and utmost point post. According to the utility model, the pole sealing assembly is arranged into an independent structure, the sealing effect of the pole sealing assembly is not influenced by the deformation of the top cover plate, the production, the manufacturing and the processing are convenient, certain universality is realized, the repair cost is lower, the production efficiency of the top cover assembly of the power battery can be greatly improved, and the production and the manufacturing cost are reduced.
Description
Technical Field
The utility model relates to the technical field of battery sealing, in particular to a battery top cover assembly, a battery shell and a battery pack.
Background
In prior art, in current battery top cap subassembly design, utmost point post is sealed mostly through utmost point post and top cap board compression seal circle and is realized utmost point post sealing function, but in the long-term use of lithium cell, can lead to the top cap board when the inside atmospheric pressure increase of battery and produce the deformation to influence the compression volume of sealing washer and lead to utmost point post sealing failure, produce and leak gas and make the inside electrolyte of battery ooze, there is the potential safety hazard.
Accordingly, there is a need for a battery top cap assembly, a battery case and a battery pack that solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a battery top cover assembly, a battery shell and a battery pack, which have the advantages of good sealing effect, convenience in production, manufacturing and processing, high production efficiency, low production and manufacturing cost, strong universality and lower repair cost.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a battery top cover assembly which comprises a top cover plate, wherein a step mounting hole is formed in the top cover plate, the battery top cover assembly further comprises a pole post sealing assembly, the pole post sealing assembly comprises a pressing ring, a sealing ring and a pole post rubber coating, the pressing ring is arranged at the step mounting hole, the pole post rubber coating wraps the periphery of a pole post, the pole post rubber coating is fixedly connected with the pressing ring, and the sealing ring is elastically abutted between the pressing ring and the pole post.
Optionally, the periphery of utmost point post is equipped with prevents changeing the screens, prevent changeing the screens with the inner wall butt of utmost point post rubber coating.
Optionally, one of the pole rubber coating and the press ring is provided with a clamping protrusion, the other is provided with a clamping groove, and the clamping protrusion is clamped in the clamping groove.
Optionally, the outer wall of the pole rubber coating is symmetrically provided with two clamping protrusions, and the inner wall of the pressing ring is symmetrically provided with two clamping grooves matched with the clamping protrusions one by one.
Optionally, the clamping ring is an aluminum clamping ring, and the pole encapsulated rubber is riveted with the aluminum clamping ring into a whole.
Optionally, the top cover plate comprises a cover plate body and a plastic insulating plate, the plastic insulating plate is fixedly attached to the bottom of the cover plate body, the step mounting holes are formed in the cover plate body, and the plastic insulating plate is provided with avoiding holes corresponding to the step mounting holes.
Optionally, a sunken platform with a preset size recessed relative to the top cover plate or a boss with a preset size protruding relative to the top cover plate is arranged on the top cover plate, and the step mounting hole is formed in the sunken platform or the boss.
Optionally, a valve body mounting hole is further formed in the top cover plate, the battery top cover assembly further comprises a safety valve and a protection sheet, the safety valve is arranged in the valve body mounting hole, and the protection sheet is fixed at an opening of the valve body mounting hole in a sealing mode.
The utility model also provides a battery shell which comprises a side plate and a bottom plate, wherein the side plate is fixedly connected with the bottom plate, the battery shell also comprises the battery top cover assembly, the top cover plate is fixedly connected with the side plate, and the top cover plate is matched with the side plate and the bottom plate to form an installation cavity.
The utility model also provides a battery pack which comprises a battery core and the battery shell, wherein the battery core is arranged in the installation cavity.
The utility model has the beneficial effects that:
the utility model provides a battery top cover assembly, a battery shell and a battery pack, wherein the pole sealing assembly is arranged into an independent structure, the sealing effect of the pole sealing assembly is not influenced by the deformation of a top cover plate, the production, the manufacturing and the processing are convenient, the universality is certain, the repair cost is lower, the production efficiency of the power battery top cover assembly can be greatly improved, and the production and the manufacturing costs are reduced.
Drawings
Fig. 1 is a schematic diagram of a disassembled structure of a battery top cover assembly provided by an embodiment of the utility model;
fig. 2 is a schematic diagram illustrating a disassembled structure of a pole seal assembly in a top cap assembly of a battery according to an embodiment of the present invention;
FIG. 3 is a schematic illustration in partial cross-sectional view of one form of a battery top cap assembly provided by an embodiment of the present invention;
fig. 4 is a schematic view, partly in section, of another form of battery top cap assembly provided by an embodiment of the utility model.
In the figure:
100. a pole column; 101. anti-rotation clamping;
1. a top cover plate; 11. a cover plate body; 111. step mounting holes; 112. a valve body mounting hole; 12. a plastic insulating plate; 121. avoiding holes; 13. a boss;
2. a pole sealing assembly; 21. pressing a ring; 211. a card slot; 22. a seal ring; 23. encapsulating the pole; 231. clamping convex;
3. a safety valve; 4. a protective sheet.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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, removably 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. 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 technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
The embodiment of the utility model discloses a battery top cover assembly, which comprises a top cover plate 1, wherein a step mounting hole 111 is formed in the top cover plate 1, as shown in fig. 1-3. Further, battery top cap subassembly still includes utmost point post seal assembly 2, and utmost point post seal assembly 2 includes clamping ring 21, sealing washer 22 and utmost point post rubber coating 23, and clamping ring 21 sets up in step mounting hole 111 department, and utmost point post rubber coating 23 wraps up in the periphery of utmost point post 100, utmost point post rubber coating 23 and clamping ring 21 fixed connection, and sealing washer 22 elasticity butt sets up between clamping ring 21 and utmost point post 100.
Through setting utmost point post seal assembly 2 to the independent structure, its sealed effect can not receive the influence that lamina tecti 1 warp, makes things convenient for the manufacturing simultaneously, has certain commonality, and the cost of reprocessing is lower, and improvement power battery top cap subassembly that can be great production efficiency reduces production manufacturing cost.
Optionally, the top cover plate 1 includes the apron body 11 and the plastic insulation board 12, the fixed laminating of plastic insulation board 12 sets up in the bottom of apron body 11, step mounting hole 111 is seted up on apron body 11, be equipped with on the plastic insulation board 12 with the hole 121 of dodging that step mounting hole 111's position corresponds, so that the seal installation of utmost point post 100, plastic insulation board 12 can play good insulating effect simultaneously, avoid the transmission of battery internal current to the top cover body, the security that the improvement battery used. In this embodiment, since the pole post 100 includes the positive pole post 100 and the negative pole post 100, two step mounting holes 111 and two avoiding holes 121 are respectively provided, and the two step mounting holes 111 and the two avoiding holes 121 are arranged in a one-to-one correspondence manner.
Secondly, clamping ring 21 is the aluminium clamping ring, and utmost point post rubber coating 23 is riveted integrative with the aluminium clamping ring to ensure the structure steadiness. Further, the sealing ring 22 is an elastic rubber ring, and the elastic rubber ring is elastically abutted between the aluminum pressure ring and the pole 100 to perform a good sealing function on the pole 100. In this embodiment, the post encapsulation 23 and the aluminum pressure ring are riveted into a whole by a suspension riveting process, and meanwhile, the sealing ring 22 is compressed to a certain compression amount (set according to the type of the sealing ring 22, and is not limited here) in the suspension riveting process, so that the whole body has a good sealing performance. In other embodiments, the material of the pressing ring 21 may be selected according to the requirement, and is not limited to this embodiment.
Utmost point post rubber coating 23 is high temperature resistant and possesses certain mechanical strength's insulating material, and the periphery of utmost point post 100 is equipped with prevents changeing screens 101, prevents changeing screens 101 and utmost point post rubber coating 23's inner wall butt to this prevents utmost point post 100's circumferential direction. In this embodiment, the post encapsulation 23 and the post 100 are molded into an integral encapsulation member by in-mold injection molding, so that the post 100 is insulated from the aluminum pressure ring 21, and the safety is good.
For the stability of connecting between improvement utmost point post rubber coating 23 and clamping ring 21, be equipped with card protruding 231 in utmost point post rubber coating 23 and the clamping ring 21, be equipped with draw-in groove 211 on the other, card protruding 231 blocks in draw-in groove 211. In this embodiment, two clamping protrusions 231 are symmetrically arranged on the outer wall of the pole encapsulation 23, and two clamping grooves 211 matched with the two clamping protrusions 231 one by one are symmetrically arranged on the inner wall of the pressing ring 21, so that the mechanical torsion strength between the pole encapsulation 23 and the pressing ring 21 is improved. In conclusion, after the pole 100, the pole encapsulation 23 and the pressing ring 21 are integrally installed, the three parts have better mechanical torsion strength.
As shown in fig. 3, fig. 3 is a partial sectional structural schematic view of one form of a battery top cover assembly provided by an embodiment of the present invention, a stepped mounting hole 111 is used for positioning and fixing a pole seal assembly 2, and the pole seal assembly 2 is integrated with a top cover plate 1 by welding to ensure structural stability.
Further, in this embodiment, as shown in fig. 4, a sunken platform with a preset concave size relative to the top cover plate 1 or a boss 13 with a preset convex size relative to the top cover plate 1 is disposed on the top cover plate 1, and the step mounting hole 111 is disposed on the sunken platform or the boss 13, so as to adjust the mounting height H of the terminal post 100 to the top cover plate 1, so that the design of the top cover assembly of the battery is more convenient, and the distribution of the internal and external spaces of the lithium battery is more flexible. The sinking platform or the boss 13 and the top cover plate 1 are integrally formed in a punching mode, and the size of the H can be adjusted through a punching die and a punching process.
In addition, still be equipped with valve body mounting hole 112 on the lamina tecti 1, this battery top cap subassembly still includes relief valve 3 and protection piece 4, and relief valve 3 sets up in valve body mounting hole 112 in order to start when battery internal pressure is too big, and the opening part of valve body mounting hole 112 is fixed in the sealing of protection piece 4 to this protects relief valve 3.
It should be additionally noted that two pole seal assemblies 2 are provided in the present embodiment to seal and fix the positive pole 100 and the negative pole 100, respectively.
The utility model also discloses a battery shell which comprises a side plate and a bottom plate, wherein the side plate is fixedly connected with the bottom plate, the battery shell also comprises the battery top cover assembly, the top cover plate 1 is fixedly connected with the side plate, and the top cover plate 1 is matched with the side plate and the bottom plate to form an installation cavity so as to be convenient for placing a battery core.
In addition, the utility model also discloses a battery pack which comprises a battery core and the battery shell, wherein the battery core is arranged in the installation cavity.
In conclusion, the utility model provides the battery top cover component, the battery shell and the battery pack, the pole sealing component 2 is arranged into an independent structure, the sealing effect of the pole sealing component is not influenced by the deformation of the top cover plate 1, the production, the manufacturing and the processing are convenient, the universality is certain, the repair cost is low, the production efficiency of the power battery top cover component can be greatly improved, and the production and the manufacturing costs are reduced.
It should be understood that the above-described embodiments of the present invention are merely 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 top cap subassembly, includes top cover plate (1), its characterized in that, be equipped with step mounting hole (111) on top cover plate (1), battery top cap subassembly still includes utmost point post seal assembly (2), utmost point post seal assembly (2) include clamping ring (21), sealing washer (22) and utmost point post rubber coating (23), clamping ring (21) set up in step mounting hole (111) department, utmost point post rubber coating (23) wrap up in the periphery of utmost point post (100) rubber coating, utmost point post (23) with clamping ring (21) fixed connection, sealing washer (22) elasticity butt set up in clamping ring (21) with between utmost point post (100).
2. The battery top cap assembly of claim 1, wherein the outer periphery of the pole (100) is provided with an anti-rotation detent (101), and the anti-rotation detent (101) abuts against the inner wall of the pole encapsulation (23).
3. The battery top cover assembly according to claim 1, wherein one of the pole encapsulation (23) and the pressing ring (21) is provided with a clamping protrusion (231), and the other is provided with a clamping groove (211), and the clamping protrusion (231) is clamped in the clamping groove (211).
4. The battery top cover assembly according to claim 3, wherein the outer wall of the pole encapsulation (23) is symmetrically provided with two clamping protrusions (231), and the inner wall of the pressing ring (21) is symmetrically provided with two clamping grooves (211) which are matched with the two clamping protrusions (231) one by one.
5. The battery cap assembly of any of claims 1-4, wherein the compression ring (21) is an aluminum compression ring, and the post encapsulation (23) is riveted to the aluminum compression ring.
6. The battery top cover assembly according to any one of claims 1 to 4, wherein the top cover plate (1) comprises a cover plate body (11) and a plastic insulating plate (12), the plastic insulating plate (12) is fixedly attached to the bottom of the cover plate body (11), the step mounting hole (111) is formed in the cover plate body (11), and an avoiding hole (121) corresponding to the step mounting hole (111) is formed in the plastic insulating plate (12).
7. The battery top cover assembly according to any one of claims 1 to 4, wherein the top cover plate (1) is provided with a sunken platform recessed by a predetermined dimension relative to the top cover plate (1) or a boss (13) protruding by the predetermined dimension relative to the top cover plate (1), and the step mounting hole (111) is opened on the sunken platform or the boss (13).
8. The battery top cover assembly according to any one of claims 1-4, wherein the top cover plate (1) is further provided with a valve body mounting hole (112), the battery top cover assembly further comprises a safety valve (3) and a protection sheet (4), the safety valve (3) is arranged in the valve body mounting hole (112), and the protection sheet (4) is hermetically fixed at the opening of the valve body mounting hole (112).
9. A battery casing comprising a side plate and a bottom plate, wherein the side plate is fixedly connected with the bottom plate, and the battery casing further comprises a battery top cover assembly according to any one of claims 1 to 8, the top cover plate (1) is fixedly connected with the side plate, and the top cover plate (1) is matched with the side plate and the bottom plate to form a mounting cavity.
10. A battery pack comprising a cell, wherein the battery pack further comprises the battery housing of claim 9, and wherein the cell is mounted in the mounting cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121713507.3U CN215496876U (en) | 2021-07-27 | 2021-07-27 | Battery top cap subassembly, battery case and battery package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121713507.3U CN215496876U (en) | 2021-07-27 | 2021-07-27 | Battery top cap subassembly, battery case and battery package |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215496876U true CN215496876U (en) | 2022-01-11 |
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ID=79752118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121713507.3U Active CN215496876U (en) | 2021-07-27 | 2021-07-27 | Battery top cap subassembly, battery case and battery package |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215496876U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117855708A (en) * | 2024-03-05 | 2024-04-09 | 厦门海辰储能科技股份有限公司 | End cover assembly, energy storage device and electric equipment |
-
2021
- 2021-07-27 CN CN202121713507.3U patent/CN215496876U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117855708A (en) * | 2024-03-05 | 2024-04-09 | 厦门海辰储能科技股份有限公司 | End cover assembly, energy storage device and electric equipment |
| CN117855708B (en) * | 2024-03-05 | 2024-05-28 | 厦门海辰储能科技股份有限公司 | End cover assembly, energy storage device and electric equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240718 Address after: No. 119 Shugang Road, Zhangwan Village, Zhangwan Town, Jiaocheng District, Ningde City, Fujian Province 352106 Patentee after: Fujian Kedali Precision Industry Co.,Ltd. Country or region after: China Address before: 27th floor, block a, building 11, Shenzhen Bay science and technology ecological park, No. 16, Keji South Road, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN KEDALI INDUSTRY Co.,Ltd. Country or region before: China |