CN218939839U - Top cap subassembly and electric core - Google Patents
Top cap subassembly and electric core Download PDFInfo
- Publication number
- CN218939839U CN218939839U CN202222999168.0U CN202222999168U CN218939839U CN 218939839 U CN218939839 U CN 218939839U CN 202222999168 U CN202222999168 U CN 202222999168U CN 218939839 U CN218939839 U CN 218939839U
- Authority
- CN
- China
- Prior art keywords
- extrusion
- pole
- insulating
- mounting
- hole
- 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
- 238000001125 extrusion Methods 0.000 claims abstract description 93
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 230000006835 compression Effects 0.000 claims description 23
- 238000007906 compression Methods 0.000 claims description 23
- 125000006850 spacer group Chemical group 0.000 claims description 19
- 238000005192 partition Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 25
- 238000007789 sealing Methods 0.000 description 24
- 238000003825 pressing Methods 0.000 description 22
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method 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 application provides a top cover assembly and a battery cell, wherein the top cover assembly comprises a light aluminum sheet, an extrusion piece and a pole, and the light aluminum sheet is provided with a connecting hole; the extrusion piece is arranged in the connecting hole and is provided with an extrusion hole; the pole is inserted into the extrusion hole. The technical scheme that this application provided guarantees the steadiness of utmost point post installation to make top cap subassembly be difficult for taking place to crack and warp in the installation department of utmost point post, improved top cap subassembly overall structure's intensity, guarantee that top cap subassembly is not fragile, improved the installation coefficient of electric core.
Description
Technical Field
The application belongs to the technical field of electronics, and especially relates to a top cover assembly and a battery cell.
Background
The battery cell generally includes a core pack and a cap assembly disposed on the core pack, and the cap assembly generally includes a terminal, a mounting member for mounting the terminal, and the like. One end of the pole is used for connecting with the pole lug on the core bag, and the other end is exposed outside the battery cell and used as a contact point when the battery cell discharges. The existing top cover assembly is unreasonable in mounting structure of the pole, so that the overall structural strength of the top cover assembly is low, the top cover assembly is easy to damage, and the safety coefficient of the battery cell is low.
Disclosure of Invention
The embodiment of the application provides a top cap subassembly and electric core to solve the problem that current top cap subassembly's overall structure intensity is lower, thereby makes top cap subassembly easy damage.
In a first aspect, embodiments of the present application provide a cap assembly for a battery cell, the cap assembly comprising:
the aluminum sheet is provided with a connecting hole;
the extrusion piece is arranged in the connecting hole and is provided with an extrusion hole;
and the pole post is inserted into the extrusion hole.
Optionally, an extrusion groove is formed in the inner side wall of the extrusion hole, extends along the radial direction of the extrusion hole and protrudes out of the hole wall of the mounting hole;
the pole comprises a first part and a second part which are connected, the second part is positioned on the first part, a mounting flange is formed on the periphery of the first part, the mounting flange protrudes out of the periphery of the second part, and the mounting flange is inserted into the extrusion groove.
Optionally, the mounting flange has an axial compression face extending in an axial direction of the pole and a lateral compression face extending in a radial direction of the pole;
the top cover assembly further comprises an insulating partition, the insulating partition is annular, the insulating partition comprises an extrusion part, the extrusion part is sleeved on the mounting flange, the mounting flange and the extrusion part are inserted into the extrusion groove, so that the axial compression surface receives radial extrusion force, and the transverse compression surface receives axial extrusion force.
Optionally, the extruding part includes a transverse extruding section and a longitudinal extruding section connected with the transverse extruding section, the longitudinal extruding section is jointed with the axial compression surface, the transverse compression surface is adjacent to the second part, and the transverse extruding section is jointed with the transverse compression surface.
Optionally, a first installation gap is formed between the wall of the extrusion hole and the outer side wall of the second part;
the insulating spacer further includes an insulating portion extending from an end of the lateral extrusion section away from the longitudinal extrusion section in a direction away from the longitudinal extrusion section to fill the first mounting gap so that the wall of the extrusion hole and the insulating portion exert a radial extrusion force on the second portion.
Optionally, the top of the extrusion is flush with the top of the insulating spacer; and/or the number of the groups of groups,
the second portion protrudes from the extrusion and the insulating spacer in a height direction of the pole. Optionally, the spacing between the top of the second portion and the top of the extrusion is 0.4mm to 1.0mm.
Optionally, the top cover assembly further includes a sealing ring, the sealing ring has an elasticity greater than that of the insulating partition, and the sealing ring includes a first sealing portion, where the first sealing portion is disposed between a groove wall of the extrusion groove and a bottom wall of the first portion.
Optionally, the thickness of the first sealing part is 0.5mm-0.7mm.
Optionally, the top cover assembly further comprises an insulating mounting piece, the insulating mounting piece is in fastening connection with the aluminum sheet, and mounting holes penetrating through two opposite sides of the insulating mounting piece in the thickness direction are formed in the insulating mounting piece; the mounting hole is arranged corresponding to the pole, so that the insulating mounting piece which surrounds the mounting hole is abutted to the bottom of the pole, and the mounting hole is configured for the connecting piece to extend into the mounting hole to be connected with the bottom of the pole.
In a second aspect, embodiments of the present application further provide a battery cell, the refrigerator including a top cap assembly as described in any one of the above.
According to the top cover assembly provided by the embodiment of the application, the aluminum sheet 210 and the extrusion piece 220 are designed to be separated, first, the strength of the extrusion piece 220 can be enhanced independently according to the requirement, so that the pole 300 is prevented from being separated from the top cover assembly when the battery cell is acted by vertical force; secondly, the space limitation of the aluminum sheet 210 on the installation of the pole 300 is avoided, and the pole 300 is ensured to be installed in place, so that the stability of the installation of the pole 300 is improved; third, the production degree of difficulty of light aluminum sheet 210 and extrusion 220 has been reduced, ensure the shape of extrusion 220, the accuracy nature of size, with ensure extrusion 220 to the extrusion force of utmost point post 300, guarantee the steadiness of utmost point post 300 installation, thereby make the top cap subassembly be difficult for taking place to split and warp in the installation department of utmost point post 300, improved top cap subassembly overall structure's intensity, guarantee that the top cap subassembly is not fragile, improved the installation coefficient of electric core.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort to a person skilled in the art.
For a more complete understanding of the present application and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts throughout the following description.
Fig. 1 is a schematic structural view of a top cap assembly according to an embodiment of the present application.
Fig. 2 is an exploded view of a top cap assembly according to an embodiment of the present application.
Fig. 3 is a schematic cross-sectional view of a top cap assembly according to an embodiment of the present disclosure.
Fig. 4 is an enlarged structural view of a portion a of the cap assembly shown in fig. 3.
Fig. 5 is a schematic view of the structure of an extrusion of a cap assembly provided in an embodiment of the present application.
Fig. 6 is a schematic structural view of a pole of a cap assembly according to an embodiment of the present disclosure.
Fig. 7 is a schematic structural view of an insulating spacer of a header assembly according to an embodiment of the present application.
Fig. 8 is a schematic structural view of a seal ring of a cap assembly according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The embodiment of the application provides a top cap subassembly and electric core to solve the problem that current top cap subassembly's overall structure intensity is lower, thereby makes top cap subassembly easy damage. The cap assembly will be described with reference to the accompanying drawings.
Referring to fig. 1 to 7, for example, the top cap assembly includes a photo-aluminum sheet 210, an extrusion 220, and a pole. The photo-aluminum sheet 210 is provided with a connection hole 211; the pressing member 220 is mounted to the connection hole 211, and the pressing member 220 is provided with a pressing hole 221; the pole 300 is inserted into the pressing hole 221. There are various connection modes of the aluminum sheet 210 and the pressing member 220, for example, welding, bonding, etc. In the prior art, the aluminum tab 210 is generally integrally formed with the extrusion 220, and since the aluminum tab 210 is generally low in hardness, the pole 300 is easily separated from the top cap assembly by external force when the aluminum tab 210 is directly integrally formed with the extrusion 220. By the design of the aluminum sheet 210 and the extrusion 220 separately, first, the strength of the extrusion 220 can be enhanced individually as required, thereby preventing the pole 300 from being separated from the top cap assembly when the battery cell is acted on by a vertical force; secondly, the space limitation of the aluminum sheet 210 on the installation of the pole 300 is avoided, and the pole 300 is ensured to be installed in place, so that the stability of the installation of the pole 300 is improved; third, the production degree of difficulty of light aluminum sheet 210 and extrusion 220 has been reduced, ensure the shape of extrusion 220, the accuracy nature of size, with ensure extrusion 220 to the extrusion force of utmost point post 300, guarantee the steadiness of utmost point post 300 installation, thereby make the top cap subassembly be difficult for taking place to split and warp in the installation department of utmost point post 300, improved top cap subassembly overall structure's intensity, guarantee that the top cap subassembly is not fragile, improved the installation coefficient of electric core.
In some examples, the inner side wall of the extrusion hole 221 is provided with an extrusion groove 222, and the extrusion groove 222 extends along the radial direction of the extrusion hole 221 and protrudes out of the hole wall of the mounting hole 110; the pole 300 includes a first portion 310 and a second portion 320 connected to each other, the second portion 320 is located on the first portion 310, a mounting flange 311 is formed on a circumferential side of the first portion 310, the mounting flange 311 protrudes from a circumferential side of the second portion 320, and the mounting flange 311 is inserted into the extrusion groove 222. So set up for the utmost point post 300 is spacing in extrusion hole 221, with the steadiness of further guaranteeing the installation of utmost point post 300, thereby make top cap subassembly be difficult for taking place to split and warp in the installation department of utmost point post 300, improved top cap subassembly overall structure's intensity, guarantee that top cap subassembly is not fragile, improved the installation coefficient of electric core.
Further, the mounting flange 311 has an axial compression surface 312 extending in the axial direction of the pole 300, and a lateral compression surface 313 extending in the radial direction of the pole 300; the top cover assembly further comprises an insulating partition 400, the insulating partition 400 is annular, the insulating partition 400 comprises a pressing portion, the pressing portion is sleeved on the mounting flange 311, the mounting flange 311 and the pressing portion are inserted into the pressing groove 222, so that the axial compression surface 312 receives a radial compression force, and the transverse compression surface 313 receives an axial compression force.
The insulating spacer 400 is made of insulating material, such as plastic, rubber, etc., so as to prevent the pole 300 and the cap assembly 200 from being electrified, thereby having an insulating function and a certain elasticity. The extrusion groove 222 is located to the extrusion portion of the mounting flange 311 of utmost point post 300 and insulating spacer 400 to can be through rationally setting up the shape size of extrusion groove 222, mounting flange 311 and insulating spacer 400 for mounting flange 311 presss from both sides tightly in extrusion groove 222, make the axial compressive plane 312 of mounting flange 311 receive the radial extrusion force from extrusion 220, the horizontal compressive plane 313 of mounting flange 311 receives the axial extrusion force from extrusion 220, so, both further guaranteed the installation steadiness of utmost point post 300 in axial direction, the installation steadiness of utmost point post 300 in radial direction has been guaranteed again, thereby the installation steadiness of utmost point post 300 has been improved, thereby make top cap subassembly difficult emergence fracture and deformation in the installation department of utmost point post 300, the intensity of top cap subassembly overall structure has been improved, guarantee that the top cap subassembly is not fragile, the installation coefficient of electric core has been improved.
Specifically, the pressing portion includes a lateral pressing section 420 and a longitudinal pressing section 430 connected to the lateral pressing section 420, the longitudinal pressing section 430 is attached to the axial compression surface 312, the lateral compression surface 313 is disposed adjacent to the second portion 320, and the lateral pressing section 420 is attached to the lateral compression surface 313. Thus, the shape of the extrusion part of the insulating spacer 400 is matched with the shape of the mounting flange 311, so that the matching area of the extrusion part and the mounting flange 311 is ensured, and the mounting stability of the pole 300 is improved to a greater extent; while also ensuring the insulating effect of the insulating spacer 400.
Further, a first installation gap is formed between the wall of the extrusion hole 221 and the outer sidewall of the second portion 320; the insulating spacer 400 further includes an insulating portion 410, and the insulating portion 410 extends from an end of the lateral pressing section 420 remote from the longitudinal pressing section 430 in a direction remote from the longitudinal pressing section 430 to fill the first installation gap so that the wall of the pressing hole 221 and the insulating portion 410 exert a radial pressing force on the second portion 320. The insulating part 410 is arranged between the hole wall of the extrusion hole 221 and the outer side wall of the second part 320, so that the second part 320 of the pole 300 can be subjected to extrusion force, the stress surface of the pole 300 is increased, the stability of the mounting section of the pole 300 is further improved, the top cover assembly is not easy to crack and deform at the mounting position of the pole 300, the strength of the integral structure of the top cover assembly is improved, the top cover assembly is not easy to damage, and the mounting coefficient of the battery core is improved.
In some examples, the top of the extrusion 220 is flush with the top of the insulating spacer 400. Thus, the insulating spacer 400 is filled in the gap between the extrusion 220 and the pole 300, the extrusion area of the extrusion 220 to the pole 300 is ensured, the installation stability of the pole 300 is improved, and the regularity of the top structure of the top cover assembly is ensured. Further, the second portion 320 protrudes from the pressing member 220 and the insulating spacer 400 in the height direction of the pole 300. In this way, the pole 300 is ensured to be exposed outside the battery cell as a contact point during discharging of the battery cell. Specifically, the spacing between the top of the second portion 320 and the top of the extrusion 220 is 0.4mm-1.0mm, such as 0.5mm, 0.7mm, 0.9mm, etc.
In some examples, the top cap assembly further includes a sealing ring 500, the sealing ring 500 having an elasticity greater than that of the insulating spacer 400, the sealing ring 500 including a first sealing portion 510, the first sealing portion 510 being disposed between a groove wall of the pressing groove 222 and a bottom wall of the first portion 310. In this embodiment, the insulating spacer 400 may be plastic, and the sealing ring 500 may be rubber, such as fluororubber, with greater elasticity, so that the sealing ring 500 has a larger deformation space, so that the pole 300 can be subjected to a larger extrusion force in the axial direction, and meanwhile, the sealing ring 500 can better seal the bottom of the pole 300, thereby achieving a better insulating effect. Regarding the thickness of the first sealing part 510, it may be 0.5mm to 0.7mm. For example, the thickness of the sealing ring 500 is not too small, but the use effect of the sealing ring 500 cannot be guaranteed, and the thickness of the sealing ring 500 is not too large, so that the volume of the sealing ring 500 is too large, the consumption of the sealing ring 500 is not saved, and the manufacturing cost of the top cover is not reduced.
In practical application, the top cover assembly further comprises an insulating mounting piece 100, the insulating mounting piece 100 is fixedly connected with the aluminum sheet 210, and the insulating mounting piece 100 is provided with mounting holes 110 penetrating through two opposite sides of the insulating mounting piece 100 in the thickness direction; the mounting hole 110 is disposed corresponding to the pole 300, so that the insulating mounting member 100 surrounding the mounting hole 110 abuts against the bottom of the pole 300, and the mounting hole 110 is configured to allow the connecting piece to extend into the mounting hole 110 to connect with the bottom of the pole 300. There are many ways to connect the insulating mount 100 to the aluminum sheet 210, such as clamping, welding, etc. The pole 300 can be erected on the hole wall of the mounting hole 110, so that the insulating mounting piece 100 has a supporting function on the pole 300, and the pole 300 can be guaranteed to be connected with the core-spun pole lug below through the mounting hole 110, and the pole 300 can be directly connected with the pole lug or indirectly connected with the pole lug, and the pole lug is not particularly limited. For example, in the present embodiment, the tab and the post 300 are connected by a connection piece. In this embodiment, the pole 300 is held by the insulating mounting member 100 and the aluminum sheet 210, so as to ensure the mounting stability of the pole 300 in the axial direction, thereby making the top cover assembly difficult to crack and deform at the mounting position of the pole 300, improving the strength of the overall structure of the top cover assembly, ensuring that the top cover assembly is not easy to damage, and improving the mounting coefficient of the battery cell.
Further, in combination with the embodiment of the seal ring 500, the seal ring 500 further includes a second sealing portion 520 connected to the first sealing portion 510, and the second sealing portion 520 is disposed between the wall of the extrusion hole 221 and the wall of the mounting hole 110. The second sealing part 520 can further seal the bottom of the pole 300 while providing a pre-tightening force, which is advantageous for improving the tightness of the connection of the aluminum sheet 210 and the insulative mounting member 100.
The utility model also provides a battery cell, which comprises a top cover assembly, wherein the specific structure of the top cover assembly refers to the embodiment, and the battery cell at least has all the beneficial effects brought by the technical scheme of the embodiment because the battery cell adopts all the technical schemes of all the embodiments, and the detailed description is omitted.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
In the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features.
The foregoing has outlined some of the more detailed description of the cap assembly provided in the examples of the present application, wherein specific examples are provided herein to illustrate the principles and embodiments of the present application, the above examples of the disclosure being provided solely to assist in the understanding of the methods of the present application and the core concepts thereof; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the ideas of the present application, the contents of the present specification should not be construed as limiting the present application in summary.
Claims (11)
1. A cap assembly for a battery cell, the cap assembly comprising:
the aluminum sheet is provided with a connecting hole;
the extrusion piece is arranged in the connecting hole and is provided with an extrusion hole;
and the pole post is inserted into the extrusion hole.
2. The header assembly of claim 1, wherein the extrusion holes are formed with extrusion grooves extending radially of the extrusion holes and protruding from the walls of the extrusion holes;
the pole comprises a first part and a second part which are connected, the second part is positioned on the first part, a mounting flange is formed on the periphery of the first part, the mounting flange protrudes out of the periphery of the second part, and the mounting flange is inserted into the extrusion groove.
3. The cap assembly of claim 2, wherein the mounting flange has an axial compression face extending in an axial direction of the pole and a lateral compression face extending in a radial direction of the pole;
the top cover assembly further comprises an insulating partition, the insulating partition is annular, the insulating partition comprises an extrusion part, the extrusion part is sleeved on the mounting flange, the mounting flange and the extrusion part are inserted into the extrusion groove, so that the axial compression surface receives radial extrusion force, and the transverse compression surface receives axial extrusion force.
4. The header assembly of claim 3, wherein said crush portion comprises a lateral crush section and a longitudinal crush section connected to said lateral crush section, said longitudinal crush section conforming to said axial compression surface, said lateral compression surface disposed adjacent said second portion, said lateral crush section conforming to said lateral compression surface.
5. The header assembly of claim 4, wherein a first mounting gap is provided between a wall of the extrusion hole and an outer sidewall of the second portion;
the insulating spacer further includes an insulating portion extending from an end of the lateral extrusion section away from the longitudinal extrusion section in a direction away from the longitudinal extrusion section to fill the first mounting gap so that the wall of the extrusion hole and the insulating portion exert a radial extrusion force on the second portion.
6. The header assembly of claim 3, wherein the top of the extrusion is flush with the top of the insulating spacer; and/or the number of the groups of groups,
the second portion protrudes from the extrusion and the insulating spacer in a height direction of the pole.
7. The cap assembly of claim 6, wherein a spacing between a top of the second portion and a top of the extrusion is 0.4mm-1.0mm.
8. The header assembly of any one of claims 3-7, further comprising a seal ring having an elasticity greater than the insulating spacer, the seal ring including a first seal portion disposed between a wall of the extrusion groove and a bottom wall of the first portion.
9. The header assembly of claim 8, wherein the first seal has a thickness of 0.5mm-0.7mm.
10. The top cap assembly according to claim 1, further comprising an insulating mounting member, the insulating mounting member being fastened to the aluminum sheet, the insulating mounting member being provided with mounting holes penetrating through opposite sides of the insulating mounting member in a thickness direction thereof; the mounting hole is arranged corresponding to the pole, so that the insulating mounting piece which surrounds the mounting hole is abutted to the bottom of the pole, and the mounting hole is configured for the connecting piece to extend into the mounting hole to be connected with the bottom of the pole.
11. A cell comprising the cap assembly of any one of claims 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222999168.0U CN218939839U (en) | 2022-11-10 | 2022-11-10 | Top cap subassembly and electric core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222999168.0U CN218939839U (en) | 2022-11-10 | 2022-11-10 | Top cap subassembly and electric core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218939839U true CN218939839U (en) | 2023-04-28 |
Family
ID=86063263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222999168.0U Active CN218939839U (en) | 2022-11-10 | 2022-11-10 | Top cap subassembly and electric core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218939839U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116984480A (en) * | 2023-07-05 | 2023-11-03 | 深圳市长盈精密技术股份有限公司 | Cover plate forming method and battery top cover |
-
2022
- 2022-11-10 CN CN202222999168.0U patent/CN218939839U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116984480A (en) * | 2023-07-05 | 2023-11-03 | 深圳市长盈精密技术股份有限公司 | Cover plate forming method and battery top cover |
| CN116984480B (en) * | 2023-07-05 | 2024-06-11 | 深圳市长盈精密技术股份有限公司 | Cover plate forming method and battery top cover |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216354485U (en) | Sealing ring for battery cover, battery cover with sealing ring and battery module | |
| CN218939839U (en) | Top cap subassembly and electric core | |
| CN111370601A (en) | Lithium ion battery | |
| CN217788589U (en) | Battery, battery module and battery pack | |
| JP2011527488A (en) | Connection structure between electrode tab and cover plate | |
| CN114824589A (en) | Battery cover plate and battery | |
| CN216389541U (en) | Battery top cap subassembly and battery | |
| CN115051089A (en) | Split type battery top cover assembly | |
| CN113097615A (en) | Shell structure and power battery | |
| CN114069115A (en) | Button cell | |
| CN212161873U (en) | Compound ring of riveting, battery apron and battery | |
| CN116487786A (en) | Top cap subassembly and battery | |
| CN115207532A (en) | Battery cover plate assembly, battery and manufacturing method of battery cover plate assembly | |
| CN214898631U (en) | Shell structure and power battery | |
| CN215816072U (en) | Top cap seal structure and electric core of electric core | |
| CN212485415U (en) | Electronic device | |
| CN217848119U (en) | Battery cover plate assembly and battery | |
| CN218123575U (en) | Battery cover plate assembly and battery | |
| CN221102246U (en) | Cover plate of cylindrical battery and cylindrical battery | |
| CN218939847U (en) | Top cap subassembly and electric core | |
| CN220021534U (en) | Pole assembly, battery and power utilization device | |
| CN219106461U (en) | Composite pole structure with stable connection and secondary battery | |
| CN211017241U (en) | Winding type bean type battery | |
| CN219610824U (en) | Insulating housing, CCS subassembly and battery module | |
| CN213546140U (en) | DC support capacitor cover plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |