CN218731336U - Top cover assembly and battery - Google Patents
Top cover assembly and battery Download PDFInfo
- Publication number
- CN218731336U CN218731336U CN202222954194.1U CN202222954194U CN218731336U CN 218731336 U CN218731336 U CN 218731336U CN 202222954194 U CN202222954194 U CN 202222954194U CN 218731336 U CN218731336 U CN 218731336U
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- coating
- terminal
- holding tank
- utmost point
- top cap
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- 238000000576 coating method Methods 0.000 claims abstract description 79
- 239000011248 coating agent Substances 0.000 claims abstract description 71
- 238000007789 sealing Methods 0.000 claims description 11
- 239000000919 ceramic Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 210000002421 cell wall Anatomy 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 210000004027 cell Anatomy 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005524 ceramic coating Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to a battery technology field discloses a top cap subassembly and battery, and wherein the top cap subassembly includes top cap, utmost point post and terminal, and the top cap has relative first face and second face, is provided with the terminal holding tank in the first face, is provided with utmost point post holding tank on the second face, and the first end of utmost point post is passed the top cap and is connected with the terminal, and the terminal is located the terminal holding tank, and the second end of utmost point post is located utmost point post holding tank. Be provided with first coating on the cell wall of utmost point post holding tank, the terminal holding tank includes anodal terminal holding tank and negative terminal holding tank, is provided with the second coating on the cell wall of negative terminal holding tank, and first coating and second coating are insulating coating. The first coating is arranged between the pole and the top cover to realize insulation, so that the production cost can be reduced, the volume utilization rate of the battery cell is improved, and the insulation between the negative pole terminal and the top cover is realized through the second coating, so that the problem of short circuit of the positive pole and the negative pole of the battery can be effectively solved, and the product performance is ensured.
Description
Technical Field
The utility model relates to a battery technology field especially relates to a top cap subassembly and battery.
Background
The top cap subassembly mainly includes top cap, utmost point post, goes up the plastic, down plastic and terminal, goes up the plastic and mainly will play the insulating effect to utmost point post and top cap relevant position with lower plastic, but the top cap subassembly that has the plastic part still has following two points not enough: firstly, the plastic part is not only not beneficial to reducing the volume of the top cover assembly, but also can cause the increase of the material, processing and assembling cost of the top cover assembly; secondly, the plastic part may shift due to external force during the process of assembling with the top cover, so that the insulation of the top cover component cannot be realized, i.e. the insulation stability is poor.
Therefore, a top cap assembly and a battery are needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a top cap subassembly can guarantee that battery product can produce, reduces battery volume and manufacturing cost simultaneously.
As the conception, the utility model adopts the technical proposal that:
a header assembly, comprising:
the terminal assembly comprises a top cover, a first terminal and a second terminal, wherein the top cover is provided with a first surface and a second surface which are opposite to each other, the first surface is provided with a terminal accommodating groove, the second surface is provided with a terminal accommodating groove, a groove wall of the terminal accommodating groove is provided with a first coating, the terminal accommodating groove comprises a positive terminal accommodating groove and a negative terminal accommodating groove, a groove wall of the negative terminal accommodating groove is provided with a second coating, and the first coating and the second coating are insulating coatings;
the utmost point post spare, including utmost point post and terminal, the first end of utmost point post is passed the top cap with the terminal is connected, the terminal is located in the terminal holding tank, the second end of utmost point post is located in the utmost point post holding tank.
Optionally, the terminal includes anodal terminal and negative terminal, anodal terminal is located in the anodal terminal holding tank, the negative terminal is located in the negative terminal holding tank, be provided with plastic on the positive pole in the anodal terminal holding tank, plastic clamp is located on the positive pole the top cap with between the anodal terminal, the resistance value of plastic is A on the positive pole, 50 omega is less than or equal to A and is less than or equal to 10000 omega.
Optionally, the first coating has a thickness d1,1um < d1 < 50um; the thickness of the second coating is d2, and d2 is more than 1um and less than 50um.
Optionally, the roughness of the first coating is Ra1,1um < Ra1 < 32um; the roughness of second coating is Ra2, and 1um is < Ra2 < 32um.
Optionally, the terminal includes positive terminal and negative terminal, positive terminal is located in the positive terminal holding tank, the negative terminal is located in the negative terminal holding tank, be provided with the third coating on the cell wall of positive terminal holding tank, the resistance value of third coating is A, and 50 Ω is ≤ A and is ≤ 10000 Ω.
Optionally, the first coating has a thickness d1,1um < d1 < 50um; the thickness of the second coating is d2, and d2 is more than 1um and less than 50um; the thickness of the third coating is d3, and d3 is more than 1um and less than 50um.
Optionally, the roughness of the first coating is Ra1,1um < Ra1 < 32um; the roughness of the second coating is Ra2, and Ra2 is more than 1um and less than 32um; the roughness of third coating is Ra3, and 1um is < Ra3 < 32um.
Optionally, the first coating and the second coating are both ceramic insulating coatings.
Optionally, the top cap assembly further includes a sealing ring, the sealing ring is sleeved on the post, and the sealing ring is clamped between the second end of the post and the second surface of the top cap.
Another object of the utility model is to provide a battery, its electric core volume utilization rate is high, low in production cost.
As the conception, the utility model adopts the technical proposal that:
a battery comprising a cap assembly as described above.
The beneficial effects of the utility model are that:
the utility model provides a top cap subassembly includes top cap, utmost point post and terminal, and the top cap has relative first face and second face, is provided with the terminal holding tank in the first face, is provided with utmost point post holding tank in the second face, and the first end of utmost point post is passed the top cap and is connected with the terminal to make the terminal be located the terminal holding tank, the second end of utmost point post is located utmost point post holding tank. Be provided with first coating on the cell wall of utmost point post holding tank, the terminal holding tank includes anodal terminal holding tank and negative terminal holding tank, is provided with the second coating on the cell wall of negative terminal holding tank, and first coating and second coating are insulating coating. The insulation between utmost point post and the top cap realizes through first coating promptly, but reduction in production cost, and insulating coating's setting also will further improve electric core volume utilization ratio when playing insulating effect. And the insulation between the negative terminal and the top cover is realized through the second coating, and the battery structure is based, namely, the short circuit problem of the positive electrode and the negative electrode of the battery can be effectively solved through the second coating, and the product performance is ensured.
The utility model provides a battery, including foretell top cap subassembly, can guarantee to produce property ability, reduction in production cost provides electric core volume utilization simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of a top cover assembly according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first viewing angle of a top cover according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a second viewing angle of the top cover according to an embodiment of the present invention.
In the figure:
1. a top cover; 11. a first side; 111. a positive terminal accommodating groove; 112. a negative terminal accommodating groove; 1121. a second coating layer; 12. a second face; 121. a positive pole holding tank; 122. a negative electrode post accommodating groove;
2. a positive pole column; 3. a negative electrode post; 4. a positive terminal; 5. a negative terminal; 6. plastic is coated on the positive electrode; 7. and (5) sealing rings.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplification of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
This embodiment provides a top cap subassembly, including top cap 1 and utmost point post spare, utmost point post spare includes utmost point post and terminal, and when the assembly, need pass top cap 1 with the first end of utmost point post and be connected with the terminal to make the first end and the second end of utmost point post be located the both sides of top cap 1 respectively, and the second end of utmost point post will be connected with the electric core electricity that is located the casing of battery. Top cap 1 has relative first face 11 and second face 12, is provided with the terminal holding tank on first face 11, is provided with utmost point post holding tank on the second face 12, and when the first end of utmost point post passed top cap 1 and was connected with the terminal, the terminal will be located the terminal holding tank, and the second end of utmost point post then is located utmost point post holding tank.
For guaranteeing the insulating effect between utmost point post spare and the top cap 1, reduce the volume of top cap subassembly simultaneously to realize electric core volume utilization's promotion, this embodiment is to utmost point post holding tank and terminal holding tank do as follows processing: firstly, a first coating is arranged on the wall of the pole holding groove to ensure the partial insulation of the pole abutting against the top cover 1; second, based on the basic structure of the battery, the terminal receiving groove includes a positive terminal receiving groove 111 and a negative terminal receiving groove 112, and a second coating 1121 is provided on the groove wall of the negative terminal receiving groove 112. Knowns, the battery has anodal utmost point post 2 and negative pole post 3 that polarity is different, and in the assembling process of battery, it is insulating between negative pole post 3 and the casing to this positive negative pole short circuit of avoiding the battery prevents that the battery from exploding because of the short circuit is overheated. By providing the second coating 1121 in the negative terminal receiving groove 112, it is ensured that the negative electrode tab 3 is not electrically conductive with the case. On the basis of this, at least two ways can be provided for the connection of the positive electrode post 2 to the top cap 1, which will be described in detail below.
Example one
Specifically, as shown in fig. 1 to 3, the terminal includes a positive terminal 4 and a negative terminal 5, only the wall of the negative terminal accommodating groove 112 is provided with the second coating 1121, the negative terminal 5 is located in the negative terminal accommodating groove 112, the positive terminal accommodating groove 111 is provided with a positive upper plastic 6, the positive terminal 4 is located in the positive terminal accommodating groove 111, and the positive upper plastic 6 is sandwiched between the top cover 1 and the positive terminal 4. Namely, under the prerequisite of leaving insulating lower plastic in order to reduce the volume of top cap subassembly, to negative terminal 3 accessible set up second coating 1121 and avoid negative terminal 3 to be electrically conductive with the casing, but to positive terminal 2 then accessible set up anodal plastic 6 in order to realize anodal terminal 2 and casing electrically conductive, the resistance value of plastic 6 is A on the positive pole, 50 omega is less than or equal to A and is less than or equal to 10000 omega to satisfy battery design demand.
Optionally, the thickness of the first coating layer is d1,1um < d1 < 50um, the thickness of the second coating layer 1121 is d2,1um < d2 < 50um, to ensure the insulation effect,
optionally, the roughness of first coating is Ra1, and 1um < Ra1 < 32um, and the roughness of second coating 1121 is Ra2, and 1um < Ra2 < 32um to avoid under the battery receives the external force condition, the relative top cap 1 of utmost point post piece takes place to rotate, reinforcing top cap assembly's installation stability. Preferably, the roughening treatment of the first and second coatings 1121 may be performed by a process such as shot blasting or laser.
Optionally, the first and second coatings 1121 are insulating ceramic coatings. In this embodiment, the insulating ceramic coating disposed on the slot wall may be adhered to the slot wall by using an adhesive, or may be directly formed by spraying on the slot wall by using a thermal spraying process.
Furthermore, the top cover assembly further comprises a sealing ring 7, the sealing ring 7 is sleeved on the pole, after the pole is connected with the terminal, the sealing ring 7 is clamped between the second end of the pole and the second surface 12 of the top cover 1, the sealing ring 7 is squeezed to ensure that no gap exists between the top cover 1 and the pole, and the shell can be sealed when the top cover assembly is covered on the shell.
This embodiment still provides a battery, including foretell top cap subassembly, can guarantee to produce the property ability, reduction in production cost improves electric core volume utilization simultaneously.
Example two
The present embodiment provides a top cover assembly, and the difference between the top cover assembly in the present embodiment and the top cover assembly in the first embodiment is: the wall of the negative terminal receiving groove 112 is provided with a second coating 1121, and the wall of the positive terminal receiving groove 111 is provided with a third coating, when the positive terminal 4 is located in the positive terminal receiving groove 111 and the negative terminal 5 is located in the negative terminal receiving groove 112. Namely, the insulation between the cathode post 3 and the cathode terminal 5 and the top cover 1 can be realized by the first coating and the second coating 1121, the insulation between the anode post 2 and the top cover 1 can be realized by the first coating, only the third coating is arranged between the anode terminal 4 and the top cover 1, the resistance value of the third coating is A, A is more than or equal to 50 Ω and less than or equal to 10000 Ω, namely, the resistance value between the anode terminal 4 and the top cover 1 is increased by the arrangement of the third coating, but the electrical conduction between the anode terminal 4 and the top cover 1 can still be ensured, so that the structural requirement of battery design is met, the production cost can be further reduced, and the volume utilization rate of the battery core can be further improved when the arrangement of the coatings plays a role in application.
Optionally, the thickness of the first coating is d1,1um < d1 < 50um, the thickness of the second coating 1121 is d2,1um < d2 < 50um, and the thickness of the third coating is d3,1um < d3 < 50um.
Optionally, the roughness of the first coating is Ra1,1um < Ra1 < 32um, the roughness of the second coating 1121 is Ra2,1um < Ra2 < 32um, and the roughness of the third coating is Ra3,1um < Ra3 < 32um.
In addition, the rest of the structure of the top cover assembly provided in this embodiment is the same as that of the top cover assembly in the first embodiment, and is not described herein again.
The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A header assembly, comprising:
the terminal structure comprises a top cover (1), wherein the top cover (1) is provided with a first surface (11) and a second surface (12) which are opposite, a terminal accommodating groove is formed in the first surface (11), a terminal accommodating groove is formed in the second surface (12), a first coating is arranged on the groove wall of the terminal accommodating groove, the terminal accommodating groove comprises a positive terminal accommodating groove (111) and a negative terminal accommodating groove (112), a second coating (1121) is arranged on the groove wall of the negative terminal accommodating groove (112), and the first coating and the second coating (1121) are both insulating coatings;
the pole column piece comprises a pole column and a terminal, wherein the first end of the pole column penetrates through the top cover (1) and the terminal is connected, the terminal is located in the terminal accommodating groove, and the second end of the pole column is located in the pole column accommodating groove.
2. The top cap assembly of claim 1, wherein the terminals comprise a positive terminal (4) and a negative terminal (5), the positive terminal (4) is located in the positive terminal accommodating groove (111), the negative terminal (5) is located in the negative terminal accommodating groove (112), an upper positive plastic (6) is disposed in the positive terminal accommodating groove (111), the upper positive plastic (6) is clamped between the top cap (1) and the positive terminal (4), and a resistance value of the upper positive plastic (6) is A,50 Ω ≤ A ≤ 10000 Ω.
3. The header assembly of claim 2, wherein the first coating has a thickness d1,1um < d1 < 50um; the thickness of the second coating (1121) is d2,1um < d2 < 50um.
4. The header assembly of claim 3, wherein the roughness of the first coating is Ra1,1um < Ra1 < 32um; the roughness of second coating (1121) is Ra2,1um < Ra2 < 32um.
5. The top cap assembly of claim 1, wherein the terminals comprise a positive terminal (4) and a negative terminal (5), the positive terminal (4) is located in the positive terminal receiving groove (111), the negative terminal (5) is located in the negative terminal receiving groove (112), a third coating is disposed on a groove wall of the positive terminal receiving groove (111), and a resistance value of the third coating is A,50 Ω & ltA & gt 10000 Ω & ltA & ltQ & gt.
6. The header assembly of claim 5, wherein the first coating has a thickness d1,1um < d1 < 50um; the thickness of the second coating (1121) is d2,1um < d2 < 50um; the thickness of the third coating is d3, and d3 is more than 1um and less than 50um.
7. The header assembly of claim 6, wherein the roughness of the first coating is Ra1,1um < Ra1 < 32um; the roughness of the second coating (1121) is Ra2, and Ra2 is more than 1um and less than 32um; the roughness of third coating is Ra3, and 1um is < Ra3 < 32um.
8. The header assembly of claim 1, wherein the first and second coatings (1121) are both ceramic insulating coatings.
9. The cap assembly according to claim 1, further comprising a sealing ring (7), wherein the sealing ring (7) is sleeved on the pole, and the sealing ring (7) is sandwiched between the second end of the pole and the second face (12) of the cap (1).
10. A battery comprising a cap assembly according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222954194.1U CN218731336U (en) | 2022-11-07 | 2022-11-07 | Top cover assembly and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222954194.1U CN218731336U (en) | 2022-11-07 | 2022-11-07 | Top cover assembly and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218731336U true CN218731336U (en) | 2023-03-24 |
Family
ID=85608673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222954194.1U Active CN218731336U (en) | 2022-11-07 | 2022-11-07 | Top cover assembly and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218731336U (en) |
-
2022
- 2022-11-07 CN CN202222954194.1U patent/CN218731336U/en active Active
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