CN220753583U - Top cap subassembly and battery cell thereof - Google Patents
Top cap subassembly and battery cell thereof Download PDFInfo
- Publication number
- CN220753583U CN220753583U CN202322329718.2U CN202322329718U CN220753583U CN 220753583 U CN220753583 U CN 220753583U CN 202322329718 U CN202322329718 U CN 202322329718U CN 220753583 U CN220753583 U CN 220753583U
- Authority
- CN
- China
- Prior art keywords
- top cover
- plastic
- pole
- positioning
- positioning groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 abstract description 4
- 239000000178 monomer Substances 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model provides a top cover assembly and a battery monomer thereof, wherein an upper positioning groove and a lower positioning groove are respectively arranged on the upper surface and the lower surface of the top cover, the adjacent upper positioning grooves are diagonally arranged, and the adjacent lower positioning grooves are diagonally arranged; the upper plastic is assembled on the top surface of the top cover, and an upper positioning column matched with the upper positioning groove is arranged on the bottom surface of the upper plastic; the lower plastic is assembled on the bottom surface of the top cover, and the top surface of the lower plastic is provided with a lower positioning column matched with the lower positioning groove; according to the utility model, the positioning columns are designed on the upper plastic and the lower plastic, the top cover is designed to position the diagonal positioning grooves, and the positioning columns and the grooves which are arranged in a crossed diagonal manner are high in positioning precision and strong in torsion resistance; the diagonal positioning groove of the top cover plate has a cold heading reinforcing effect, so that the strength of the top cover plate is increased, and the torsion resistance of the top cover pole is also increased.
Description
Technical Field
The utility model relates to the field of lithium ion batteries, in particular to a top cover assembly and a battery cell thereof.
Background
With the development of economy and the outstanding expression of environmental problems, new energy sources are required to be used as low-carbon energy sources to gradually replace petroleum energy sources, and particularly in the aspect of vehicles, the mileage expression of the new energy sources is not inferior to that of fuel vehicles, and the situation is mainly in the improvement of the energy density of electric cores.
The battery mat with the blade is rolled into a glaring star worldwide at present, and is mainly characterized in that the length of the battery is prolonged as much as possible in the limitation of the height of a vehicle body. Two types of top covers are respectively a ceramic structure and a riveting structure for the blade battery; the manufacturing cost of the ceramic structure is high, only the ceramic structure is used in the Biedi, and most battery manufacturers use the riveting structure; due to the limited thickness of the riveted top cover, the torsion resistance and the assembly positioning are relatively poor.
Therefore, we propose a top cap assembly and a battery cell thereof to solve the problems of torsion resistance and assembly positioning.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and adopts the following technical scheme:
a header assembly, comprising: the upper surface and the lower surface of the top cover are respectively provided with an upper positioning groove and a lower positioning groove, the upper positioning grooves are arranged diagonally adjacent to each other, and the lower positioning grooves are arranged diagonally adjacent to each other; the upper plastic is assembled on the top surface of the top cover, and an upper positioning column matched with the upper positioning groove is arranged on the bottom surface of the upper plastic; the lower plastic is assembled on the bottom surface of the top cover, the lower plastic top surface is provided with a lower positioning column matched with the lower positioning groove, the upper positioning column on the upper plastic bottom surface is assembled with the upper positioning groove on the top surface of the top cover in a clamping manner, and the adjacent upper positioning groove and the lower positioning groove are diagonally crossed, so that positioning can be realized, and a torsion-resistant effect can be realized.
Further preferably, the method further comprises: the pole is sequentially penetrated through the lower plastic and the top cover from bottom to top, and a gap is formed at the connection position of the pole, the lower plastic and the top cover; the sealing ring is positioned in the gap and sleeved on the outer wall of the pole; and the riveting aluminum block is covered at the upper end of the pole and is fixedly riveted with the upper plastic.
Further preferably, the sealing ring has a T-shaped structure.
Further preferably, the aperture of the lower plastic surface pole mounting hole is larger than the aperture of the top cover surface pole mounting hole.
Further preferably, the upper plastic and the riveted aluminum block are provided with through holes for the pole to penetrate.
Further preferably, the number of the positive electrode posts or the negative electrode posts is 2, and preferably, the number of the positive electrode posts or the negative electrode posts is 2.
Further preferably, the top cover through hole is provided with an explosion-proof valve, the top end of the explosion-proof valve is provided with a protection sheet, and the protection of the secondary battery is achieved through the explosion-proof valve and the protection sheet.
A battery cell comprising: the shell is provided with openings at two sides; the battery cell is arranged in the shell; a cap assembly is disposed within the opening as described above.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the positioning columns are designed on the upper plastic and the lower plastic, the top cover is designed to position the diagonal positioning grooves, and the positioning columns and the grooves which are arranged in a crossed diagonal manner are high in positioning precision and strong in torsion resistance; the diagonal positioning groove of the top cover plate has a cold heading reinforcing effect, so that the strength of the top cover plate is increased, and the torsion resistance of the top cover pole is also increased.
Drawings
FIG. 1 is a schematic view of an explosion of a header assembly according to the present utility model;
FIG. 2 is a schematic explosion diagram of a roof assembly according to the present utility model;
FIG. 3 is an assembled cross-sectional view of the header assembly of the present utility model;
fig. 4 is a schematic diagram of a battery cell structure according to the present utility model.
In the figure: top cap 1, last plastic 2, riveting aluminium brick 3, lower plastic 4, sealing washer 5, utmost point post 6, explosion-proof valve 7, protection piece 8, casing 9, lower reference column 41, upper reference column 21, upper constant head tank 11, lower constant head tank 12.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-4, a top cap assembly includes: the upper and lower surfaces of the top cover 1 are respectively provided with an upper positioning groove 11 and a lower positioning groove 12, the upper positioning groove 11 is arranged diagonally adjacent to the lower positioning groove 12; the upper plastic 2 is assembled on the top surface of the top cover 1, and an upper positioning column 21 matched with the upper positioning groove 11 is arranged on the bottom surface of the upper plastic 2; the lower plastic 4 is assembled on the bottom surface of the top cover 1, and the top surface of the lower plastic 4 is provided with a lower positioning column 41 matched with the lower positioning groove 12.
In the examples: the upper positioning column 21 on the bottom surface of the upper plastic 2 is clamped and assembled with the upper positioning groove 11 on the top surface of the top cover 1, and the adjacent upper positioning groove 11 and the lower positioning groove 12 are diagonally crossed, so that positioning can be realized, and the torsion resistance effect can be realized.
The diagonal positioning grooves on the upper surface and the lower surface of the top cover 1 have cold heading reinforcing effect, so that the strength of the top cover 1 is increased, and the torsion resistance of the top cover pole is further improved.
The pole 6 sequentially penetrates through the lower plastic 4 and the top cover 1 from bottom to top, pole mounting holes are formed in the surfaces of the top cover 1 and the lower plastic 4, and gaps are formed in the positions, where the pole 6 is connected with the lower plastic 4 and the top cover 1; the sealing ring 5 is positioned in the gap, sleeved on the outer wall of the pole 6, riveted with the aluminum block 3, covered on the upper end of the pole 6 and riveted with the upper plastic 2.
In the examples: the sealing ring 5 is of a T-shaped structure, the aperture of the pole mounting hole on the surface of the lower plastic 4 is larger than that of the pole mounting hole on the surface of the top cover 1, the outer wall of the bottom of the sealing ring 5 is penetrated into the pole mounting hole on the surface of the lower plastic 4, the outer wall of the top of the sealing ring 5 is penetrated into the pole mounting hole on the surface of the top cover 1, and the bottom of the sealing ring 5 is clamped and pressed between the pole 6 and the top cover 1.
The upper plastic 2 and the riveting aluminum block 3 are respectively provided with a through hole for the pole 6 to penetrate, and preferably, the number of through holes on the surfaces of the upper plastic 2 and the riveting aluminum block 3 is 2.
The positive pole 6 is a positive pole or a negative pole, preferably, the number of the positive poles or the negative poles is 2, the positive pole is arranged on one side of the battery, and the negative pole is arranged on the other side of the battery.
The top cover 1 is provided with an explosion-proof valve 7 through the hole, and the top end of the explosion-proof valve 7 is provided with a protection sheet 8.
In the examples: the top cap 1 surface is equipped with the through-hole for explosion-proof valve 7 assembly welding is equipped with protection piece 8 on the explosion-proof valve 7, and protection piece 8 paste in the top of explosion-proof valve 7, and explosion-proof valve 7 can break when the inside pressure of electricity core reaches the critical point, can effectually prevent that the electricity core is inside because of the too big explosion that produces of pressure, and protection piece 8 can protect explosion-proof valve 7 in the outside simultaneously, can effectually prevent that explosion-proof valve 7 from receiving external influence.
A battery cell comprising: a housing 9, two sides of which are provided with openings; the battery cell is arranged in the shell; the top cap assembly is provided on the opening as described above.
In the examples: the battery cell is installed in the casing 9, and the opposite sides of casing 9 have uncovered, install the top cap subassembly in the uncovered, and the positive pole is installed to the top cap subassembly of one side, and the negative pole is installed to the top cap subassembly of opposite side.
According to the utility model, the positioning columns are designed on the upper plastic and the lower plastic, the top cover is designed to position the diagonal positioning grooves, and the positioning columns and the grooves which are arranged in a crossed diagonal manner are high in positioning precision and strong in torsion resistance; the diagonal positioning groove of the top cover plate has a cold heading reinforcing effect, so that the strength of the top cover plate is increased, and the torsion resistance of the top cover pole is also increased.
Claims (6)
1. A header assembly, comprising:
the upper surface and the lower surface of the top cover are respectively provided with an upper positioning groove and a lower positioning groove, the upper positioning grooves are arranged diagonally adjacent to each other, and the lower positioning grooves are arranged diagonally adjacent to each other;
the upper plastic is assembled on the top surface of the top cover, and an upper positioning column matched with the upper positioning groove is arranged on the bottom surface of the upper plastic;
and the lower plastic is assembled on the bottom surface of the top cover, and the top surface of the lower plastic is provided with a lower positioning column matched with the lower positioning groove.
2. The header assembly of claim 1, further comprising:
the pole is sequentially penetrated through the lower plastic and the top cover from bottom to top, and a gap is formed at the connection position of the pole, the lower plastic and the top cover;
the sealing ring is positioned in the gap and sleeved on the outer wall of the pole;
and the riveting aluminum block is covered at the upper end of the pole and is fixedly riveted with the upper plastic.
3. The top cover assembly according to claim 2, wherein the upper plastic and the riveted aluminum block are provided with through holes for the pole to pass through.
4. The header assembly of claim 2, wherein the post is a positive post or a negative post.
5. The top cover assembly according to claim 1, wherein the top cover through-hole is provided with an explosion-proof valve, and a protection sheet is provided at a top end of the explosion-proof valve.
6. A battery cell, comprising:
the shell is provided with openings at two sides;
the battery cell is arranged in the shell;
the cap assembly of any one of the battery cells of claims 1 to 5, the cap assembly being disposed within the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322329718.2U CN220753583U (en) | 2023-08-29 | 2023-08-29 | Top cap subassembly and battery cell thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322329718.2U CN220753583U (en) | 2023-08-29 | 2023-08-29 | Top cap subassembly and battery cell thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220753583U true CN220753583U (en) | 2024-04-09 |
Family
ID=90560017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322329718.2U Active CN220753583U (en) | 2023-08-29 | 2023-08-29 | Top cap subassembly and battery cell thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220753583U (en) |
-
2023
- 2023-08-29 CN CN202322329718.2U patent/CN220753583U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |