CN217361749U - Lithium ion battery cover plate assembly - Google Patents
Lithium ion battery cover plate assembly Download PDFInfo
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- CN217361749U CN217361749U CN202221099895.5U CN202221099895U CN217361749U CN 217361749 U CN217361749 U CN 217361749U CN 202221099895 U CN202221099895 U CN 202221099895U CN 217361749 U CN217361749 U CN 217361749U
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- post
- cover plate
- negative pole
- insulating part
- lithium ion
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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 provides a be applied to lithium ion battery technical field's lithium ion battery apron subassembly, lithium ion battery apron subassembly apron (1) be close to one side and set up anodal post mounting groove (9), apron (1) are close to the opposite side and set up insulating part mounting groove (10), insulating part (4) upper surface sets up negative pole post mounting groove (11), negative pole post (3) lower extreme sets up connection projection (12), insulating part (4) on set up insulating part through-hole (14), set up apron through-hole (15) on apron (1). Lithium ion battery apron subassembly, can realize anodal post and negative pole post respectively with the cover connection, simultaneously through the setting of mounting groove, form the anchor point, eliminate the axial torsion of utmost point post, improve utmost point post connection reliability, avoid anodal post and negative pole post for the apron drunkenness, promote the apron performance, promote the battery wholeness ability.
Description
Technical Field
The utility model belongs to the technical field of lithium ion battery, more specifically say, relate to a lithium ion battery apron subassembly.
Background
At present, the existing cover plate is complex in structure, high in assembly requirement, high in cost and general in mechanical property, and the mode that a pole head is insulated from the cover plate is used, so that electrochemical corrosion is easily caused, and the explosion-proof sheet is corroded, so that the battery fails. Therefore, the cover plate assembly of the prior art is not only high in cost, but also complex in manufacturing and installation processes, and affects the performance and the service life of the cover plate after being used in a battery.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the lithium ion battery cover plate component has the advantages that the lithium ion battery cover plate component is simple in structure, capable of achieving connection between the positive pole column and the negative pole column and the cover plate, meanwhile, anchor points are arranged, axial torsion of the pole column is eliminated, connection reliability of the pole column is improved, the positive pole column and the negative pole column are prevented from moving relative to the cover plate, and overall performance of a battery is improved.
To solve the technical problem, the utility model discloses the technical scheme who takes does:
the utility model relates to a lithium ion battery cover plate assembly, including apron, anodal post, the apron is close to one side and sets up the anodal post mounting groove, and the apron is close to the opposite side and sets up the insulating part mounting groove, and the insulating part upper surface sets up negative pole post mounting groove, and negative pole post lower extreme sets up the connection projection, the insulating part on set up the insulating part through-hole, set up the apron through-hole on the apron.
The positive post include positive post body and positive post bottom plate, the positive post bottom plate sets up to the structure the same with the size and the shape of positive post mounting groove.
And the lower surface of the insulating part is provided with an insulating part connecting lug.
The horizontal section of the negative pole is the same as the size and shape of the negative pole mounting groove.
The lithium ion battery cover plate component also comprises a negative electrode connecting sheet.
When anodal post and apron be connected, the anodal post sets up to clamping in the anodal post mounting groove and with anodal post mounting groove side welded structure.
When the negative pole column is connected with the insulating part and the cover plate, the negative pole column is arranged to be capable of being clamped in the negative pole column mounting groove, and the insulating part connecting lug of the insulating part is arranged to be capable of being clamped in the insulating part mounting groove.
When the negative pole column is connected with the insulating part and the cover plate, the connecting convex column of the negative pole column is arranged to be in a structure which can penetrate through the through hole of the insulating part and the through hole of the cover plate to be in contact with the negative pole connecting sheet and is welded with the negative pole connecting sheet.
The cover plate is also provided with an explosion-proof piece through hole, the explosion-proof piece is welded with the cover plate below the explosion-proof piece through hole, an annular boss is arranged above the explosion-proof piece through hole along the upper surface of the cover plate, and the explosion-proof piece protective film is clamped at the position of the annular boss.
The explosion-proof fragment protection film is adhered to the annular boss through double-sided glue.
Adopt the technical scheme of the utility model, theory of operation and beneficial effect are as follows:
lithium ion battery apron subassembly, during positive post and cover connection, clamp through positive post and positive post mounting groove cooperation, realize the location, avoid the drunkenness, and positive post mounting groove rethread welding fixed position ensure that the positive post is reliably connected. And the negative pole post is connected the projection through setting up, can pass insulating part through-hole and apron through-hole in proper order and be connected with the negative pole connection piece, and the negative pole post passes through negative pole post mounting groove and realizes fixing a position, and the insulating part passes through the insulating part mounting groove and realizes fixing a position, avoids the negative pole post to take place the axial wrench movement for the insulating part, avoids the insulating part to take place the axial wrench movement for the apron, ensures reliable connection. The insulating part is made of insulating, corrosion-resistant, high-temperature-resistant, sealing and strength materials. Lithium ion battery apron subassembly, simple structure can realize anodal post and negative pole post respectively with the cover connection, simultaneously through the setting of mounting groove, form the anchor point, eliminate the axial torsion of utmost point post (anodal post and negative pole post), improve utmost point post and connect the reliability, avoid anodal post and negative pole post for the apron drunkenness, promote the apron performance, promote battery wholeness ability.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
fig. 1 is a schematic diagram of an explosion structure of a lithium ion battery cover plate assembly according to the present invention;
fig. 2 is a schematic top view of the lithium ion battery cover plate assembly according to the present invention;
fig. 3 is a schematic bottom view of the lithium ion battery cover plate assembly according to the present invention;
in the drawings are labeled: 1. a cover plate; 2. a positive post; 3. a negative pole post; 4. an insulating member; 5. a negative electrode connecting sheet; 6. an explosion-proof sheet; 7. an explosion-proof sheet protective film; 8. a liquid injection hole; 9. an anode post mounting groove; 10. an insulator mounting groove; 11. a cathode post mounting groove; 12. connecting the convex columns; 13. the insulating part is connected with the lug; 14. an insulator through hole; 15. a cover plate through hole; 16. a positive post body; 17. a positive post base plate; 18. a rupture disk through hole; 19. annular boss.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings, wherein the embodiments of the present invention are described in detail with reference to the accompanying drawings, for example, the shapes, structures, mutual positions and connection relations of the components, the functions and operation principles of the components, and the like:
as shown in fig. 1-3, the utility model relates to a lithium ion battery cover plate assembly, including apron 1, anodal post 2, apron 1 is close to one side and sets up anodal post mounting groove 9, and apron 1 is close to the opposite side and sets up insulating part mounting groove 10, and insulating part 4 upper surface sets up negative pole post mounting groove 11, and 3 lower extremes of negative pole post set up connection projection 12, insulating part 4 on set up insulating part through-hole 14, set up apron through-hole 15 on the apron 1. The structure provides an improved technical scheme aiming at the defects in the prior art. When the positive post was connected with the apron, clamped through the cooperation of positive post and positive post mounting groove 9, realized the location, avoided the drunkenness, and positive post and the 9 rethread welding fixed positions in positive post mounting groove ensure the positive post and reliably connect. And the negative pole post is connected projection 12 through setting up, can pass insulating part through-hole 14 and apron through-hole 15 in proper order and be connected with the negative pole connection piece, and the negative pole post realizes fixing a position through negative pole post mounting groove 11, and the insulating part realizes fixing a position through insulating part mounting groove 10, avoids the negative pole post to take place the axial wrench movement for the insulating part, avoids the insulating part to take place the axial wrench movement for the apron, ensures reliable connection. The insulating part is made of insulating, corrosion-resistant, high-temperature-resistant, sealing and strength materials. Lithium ion battery cover plate assembly, simple structure, can realize anodal post and negative pole post respectively with the cover connection, through the setting of mounting groove, form the anchor point simultaneously, eliminate the axial torsion of utmost point post (anodal post and negative pole post), improve utmost point post and connect the reliability, avoid anodal post and negative pole post for the apron drunkenness, promote the apron performance, promote the battery wholeness ability.
The positive pole 2 comprises a positive pole body 16 and a positive pole bottom plate 17, and the positive pole bottom plate 17 is arranged to be of the same structure with the positive pole mounting groove 9 in size and shape. In the structure, the positive post body 16 and the positive post bottom plate 17 are of an integrated structure and can be made of aluminum materials or copper materials. The positive post clamps behind the positive post mounting groove, and is fixed through welding mode and apron simultaneously.
And an insulating part connecting lug 13 is arranged on the lower surface of the insulating part 4. Above-mentioned structure, insulating part connecting lug 13 and insulating part formula structure as an organic whole for reliably fix the insulating part in the insulating part mounting groove on the apron, ensure that the insulating part can not take place to twist reverse, reliably insulating.
The horizontal section of the negative pole 3 is the same as the size and shape of the negative pole mounting groove 11. Above-mentioned structure, in negative pole post 3 can reliably clamp the negative pole post mounting groove 11 on the insulating part, ensured that the negative pole post can not take place to twist reverse for the insulating part, reliably realized spacingly.
The lithium ion battery cover plate component also comprises a negative electrode connecting sheet 5. In the structure, the negative connecting sheet is connected with the connecting convex column 12 of the negative pole column in a welding way, so that the connection between the inside and the outside of the battery is realized.
When positive post 2 and apron 1 are connected, positive post 2 sets up to clamping in positive post mounting groove 9 and with positive post mounting groove 9 side welded structure. Above-mentioned structure realizes the reliable location and the being connected of positive post and apron, promotes whole joint strength, satisfies the demand.
When the negative pole column 3 is connected with the insulating piece 4 and the cover plate 1, the negative pole column 3 is arranged to be clamped in the negative pole column mounting groove 11, and the insulating piece connecting convex block 13 of the insulating piece 4 is arranged to be clamped in the insulating piece mounting groove 10. When the negative pole post 3 is connected with the insulating part 4 and the cover plate 1, the connecting convex column 12 of the negative pole post 3 is set to be a structure which can pass through the insulating part through hole 14 and the cover plate through hole 15 to be in contact with the negative pole connecting sheet 5 and be welded with the negative pole connecting sheet 5. In the structure, the negative connecting piece is connected with the negative pole column through laser welding. The negative pole column can reliably penetrate through the cover plate to be connected with the negative pole connecting sheet, and the negative pole column is reliably limited.
The cover plate 1 is further provided with an explosion-proof fragment through hole 18, the explosion-proof fragment 6 is connected with the cover plate 1 below the explosion-proof fragment through hole 18 in a welding mode, an annular boss 19 is arranged above the explosion-proof fragment through hole 18 along the upper surface of the cover plate 1, and the explosion-proof fragment protection film 7 is clamped at the position of the annular boss 19. The anti-explosion fragment protection film 7 is connected to the position of the annular boss 19 through double-sided adhesive. In the structure, the explosion-proof sheet 6 is a circular aluminum foil and is connected with the cover plate through laser welding. The anti-explosion sheet protective film is annular and is connected with the annular boss 19 of the cover plate through a double-sided adhesive tape.
Lithium ion battery apron subassembly, during positive post and cover connection, clamp through positive post and positive post mounting groove cooperation, realize the location, avoid the drunkenness, and positive post mounting groove rethread welding fixed position ensure that the positive post is reliably connected. And the negative pole post is connected the projection through setting up, can pass insulating part through-hole and apron through-hole in proper order and be connected with the negative pole connection piece, and the negative pole post passes through negative pole post mounting groove and realizes fixing a position, and the insulating part passes through the insulating part mounting groove and realizes fixing a position, avoids the negative pole post to take place the axial wrench movement for the insulating part, avoids the insulating part to take place the axial wrench movement for the apron, ensures reliable connection. The insulating part is made of insulating, corrosion-resistant, high-temperature-resistant, sealing and strong materials. Lithium ion battery apron subassembly, simple structure can realize anodal post and negative pole post respectively with the cover connection, simultaneously through the setting of mounting groove, form the anchor point, eliminate the axial torsion of utmost point post (anodal post and negative pole post), improve utmost point post and connect the reliability, avoid anodal post and negative pole post for the apron drunkenness, promote the apron performance, promote battery wholeness ability.
The present invention has been described in detail with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and the present invention can be implemented in various ways without modification, and the present invention is not limited by the above embodiments.
Claims (10)
1. A lithium ion battery cover plate assembly is characterized in that: including apron (1), anodal post (2), apron (1) is close to one side and sets up anodal post mounting groove (9), and apron (1) is close to the opposite side and sets up insulating part mounting groove (10), and insulating part (4) upper surface sets up negative pole post mounting groove (11), and negative pole post (3) lower extreme sets up connection projection (12), insulating part (4) on set up insulating part through-hole (14), set up apron through-hole (15) on apron (1).
2. The lithium ion battery cover plate assembly of claim 1, wherein: the positive pole (2) include positive pole body (16) and positive pole bottom plate (17), positive pole bottom plate (17) set up to the structure the same with size and shape of positive pole mounting groove (9).
3. The lithium ion battery cover plate assembly of claim 1 or 2, wherein: and the lower surface of the insulating part (4) is provided with an insulating part connecting lug (13).
4. The lithium ion battery cover plate assembly of claim 3, wherein: the horizontal section of the negative pole (3) is the same as the size and shape of the negative pole mounting groove (11).
5. The lithium ion battery cover plate assembly of claim 4, wherein: the lithium ion battery cover plate component also comprises a negative electrode connecting piece (5).
6. The lithium ion battery cover plate assembly of claim 1 or 2, wherein: anodal post (2) when being connected with apron (1), anodal post (2) set up to clamping in anodal post mounting groove (9) and with anodal post mounting groove (9) side welded structure.
7. The lithium ion battery cover plate assembly of claim 5, wherein: when the negative pole post (3) is connected with the insulating part (4) and the cover plate (1), the negative pole post (3) is arranged to be clamped in the negative pole post mounting groove (11), and the insulating part connecting lug (13) of the insulating part (4) is arranged to be clamped in the insulating part mounting groove (10).
8. The lithium ion battery cover plate assembly of claim 6, wherein: when the negative pole post (3) is connected with the insulating part (4) and the cover plate (1), the connecting convex column (12) of the negative pole post (3) is set to be a structure which can penetrate through the insulating part through hole (14) and the cover plate through hole (15) to be in contact with the negative pole connecting sheet (5) and is welded with the negative pole connecting sheet (5).
9. The lithium ion battery cover plate assembly of claim 1 or 2, wherein: the anti-explosion cover is characterized in that an anti-explosion piece through hole (18) is further formed in the cover plate (1), the anti-explosion piece (6) is connected with the cover plate (1) below the anti-explosion piece through hole (18) in a welded mode, an annular boss (19) is arranged on the upper portion of the anti-explosion piece through hole (18) along the upper surface of the cover plate (1), and the anti-explosion piece protection film (7) is clamped on the position of the annular boss (19).
10. The lithium ion battery cover plate assembly of claim 9, wherein: the rupture disk protective film (7) is connected to the position of the annular boss (19) through double-sided adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221099895.5U CN217361749U (en) | 2022-05-09 | 2022-05-09 | Lithium ion battery cover plate assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221099895.5U CN217361749U (en) | 2022-05-09 | 2022-05-09 | Lithium ion battery cover plate assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217361749U true CN217361749U (en) | 2022-09-02 |
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ID=83010708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221099895.5U Active CN217361749U (en) | 2022-05-09 | 2022-05-09 | Lithium ion battery cover plate assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217361749U (en) |
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2022
- 2022-05-09 CN CN202221099895.5U patent/CN217361749U/en active Active
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