CN217387317U - Battery cover plate and battery - Google Patents
Battery cover plate and battery Download PDFInfo
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- CN217387317U CN217387317U CN202220850619.1U CN202220850619U CN217387317U CN 217387317 U CN217387317 U CN 217387317U CN 202220850619 U CN202220850619 U CN 202220850619U CN 217387317 U CN217387317 U CN 217387317U
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- cover plate
- conductive
- battery
- copper
- pole
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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 discloses an apron and battery of battery, the apron of battery includes: a tab connecting piece; the insulating piece is arranged on the lug connecting piece; the cover plate main body is arranged on the insulating piece; the pole is arranged on the pole lug connecting piece and sequentially penetrates through the insulating piece and the cover plate main body, and the pole is a pure copper pole; the conductive piece is arranged on the cover plate main body and is electrically connected with the pole, and the conductive piece is a copper-aluminum composite conductive piece. From this, through setting up utmost point post into pure copper utmost point post, set up electrically conductive for the copper-aluminium complex electrically conductive to electrically conductive and utmost point post electricity is connected, not only can improve the ability of overflowing of the apron of battery, can improve the production efficiency of the apron of battery moreover, reduction in production cost.
Description
Technical Field
The utility model belongs to the technical field of the battery technique and specifically relates to an apron and battery of battery are related to.
Background
With the development of new energy, the application of the power battery is wider and wider, and the performance requirement on the power battery is higher and higher. In the production and manufacturing process of the battery, the cover plate mainly plays a role in sealing and leading out current, and normal work of the battery is guaranteed.
In the related technology, the negative pole post realizes copper-aluminum conversion through copper-aluminum compounding or friction welding, in order to avoid electrochemical corrosion, a copper-aluminum compounding surface needs to be controlled outside an electric core, so that the forming mode of the pole post is complex, the difficulty is high, and when the pole post is set to be oval or racetrack-shaped in order to improve the overcurrent capacity of a battery, a numerical control lathe needs to be used for processing, so that the problems of weak overcurrent capacity of a cover plate and high production cost exist.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an apron of battery, this apron ability of overflowing is stronger, and manufacturing cost is lower.
The utility model discloses a battery is further proposed.
According to the utility model discloses apron of battery, include: a tab connecting piece; the insulating piece is arranged on the lug connecting piece; a cover plate main body disposed on the insulating member; the pole is arranged on the pole lug connecting piece and sequentially penetrates through the insulating piece and the cover plate main body, and the pole is a pure copper pole; and the conductive piece is arranged on the cover plate main body and is electrically connected with the pole, and the conductive piece is a copper-aluminum composite conductive piece.
From this, through setting up utmost point post into pure copper utmost point post, set up electrically conductive for the copper-aluminium complex electrically conductive to electrically conductive and utmost point post electricity is connected, not only can improve the ability of overflowing of the apron of battery, can improve the production efficiency of the apron of battery moreover, reduction in production cost.
According to the utility model discloses a some embodiments, pure copper utmost point post at least partially bulge in the apron main part, the through-hole has been seted up to electrically conductive, pure copper utmost point post stretches into the through-hole and with the internal perisporium contact electricity of through-hole is connected.
According to the utility model discloses a some embodiments, electrically conductive piece includes copper conductive part and aluminium matter conductive part, copper conductive part set up in the below of aluminium matter conductive part, copper conductive part corresponds the position of week in the through-hole inner with pure copper utmost point post protrusion in the part of apron main part is corresponding, copper conductive part with pure copper utmost point post electricity is connected.
According to the utility model discloses a some embodiments, copper conductive part corresponds the position of through-hole inner periphery is provided with first spacing portion, pure copper utmost point post is provided with the spacing portion of second, first spacing portion with the spacing cooperation of the spacing portion of second.
According to some embodiments of the utility model, first spacing portion is first spacing step, the spacing portion of second is the spacing step of second, first spacing step with the spacing cooperation of the spacing step of second.
According to some embodiments of the utility model, copper conductive part corresponds the position of week in the through-hole with pure copper utmost point post riveting and/or welded fastening.
According to some embodiments of the utility model, utmost point post is circular, runway shape or oval just is in the length direction of apron main part extends the setting.
According to some embodiments of the utility model, pure copper utmost point post is upset integrated into one piece's utmost point post.
According to some embodiments of the present invention, the copper-aluminum composite conductive member is a conductive member formed integrally by punching.
According to the utility model discloses a battery, include: the above-described battery cover plate.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic diagram of a cover plate of a battery according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a cover plate of a battery according to an embodiment of the present invention;
fig. 3 is an exploded view of a cover plate of a battery according to an embodiment of the present invention;
fig. 4 is a cross-sectional view of a cover plate of a battery according to an embodiment of the present invention;
FIG. 5 is a schematic view of region A in FIG. 4;
fig. 6 is a schematic view of the region B in fig. 5.
Reference numerals:
100. a cover plate;
10. a tab connecting piece; 20. an insulating member; 30. a cover plate main body;
40. a pole column; 41. a second limiting part;
50. a conductive member; 51. a through hole; 511. a first limiting part; 52. a copper conductive portion; 53. an aluminum conductive portion.
Detailed Description
Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.
The cap plate 100 for a battery according to an embodiment of the present invention will be described below with reference to fig. 1 to 6, and the cap plate 100 for a battery may be applied to a battery.
As shown in fig. 1 to 4, a cover plate 100 of a battery according to an embodiment of the present invention may mainly include: the tab connecting member 10, the insulator 20, the cover plate body 30, the pole 40 and the conductive member 50. Wherein, insulating part 20 sets up in utmost point ear connecting piece 10, and apron main part 30 sets up in insulating part 20, and utmost point post 40 sets up in utmost point ear connecting piece 10 to wear to establish insulating part 20 and apron main part 30 in proper order, utmost point post 40 are pure copper utmost point post, and electrically conductive 50 sets up in apron main part 30, and is connected with utmost point post 40 electricity, and electrically conductive 50 is the compound electrically conductive piece of copper aluminium.
Specifically, with utmost point ear connecting piece 10, insulating part 20 and apron main part 30 set gradually, set up utmost point post 40 on utmost point ear connecting piece 10, and wear to establish insulating part 20 and apron main part 30 in proper order, to locate apron main part 30 with electrically conductive 50, make electrically conductive 50 be connected with utmost point post 40 electricity, insulating part 20 can separate utmost point ear connecting piece 10 and apron main part 30 and insulate like this, electric current can draw forth to electrically conductive 50 through utmost point ear connecting piece 10 and utmost point post 40, guarantee the normal work of the apron 100 of battery.
Furthermore, the pole 40 is set to be a pure copper pole, which is different from the pole which is subjected to copper-aluminum compounding or friction welding to realize copper-aluminum conversion, the pure copper pole is designed to improve the overcurrent capacity of the pole 40, the position of a copper-aluminum compounding surface is not required to be considered during the production of the pole 40, the production mode of the pole 40 can be simplified, the production efficiency of the pole 40 is improved, and the production cost of the pole 40 is reduced.
Further, the conductive piece 50 is set to be a copper-aluminum composite conductive piece, so that not only can the production efficiency of the conductive piece 50 be ensured, but also the copper-aluminum composite conductive piece and the pure copper pole can be mutually connected, the electric connection between the conductive piece 50 and the pole 40 is realized, and the connection strength and the overcurrent capacity between the pole 40 and the conductive piece 50 can be ensured.
From this, through setting up utmost point post 40 to pure copper utmost point post, set up electrically conductive 50 to the compound electrically conductive piece of copper aluminium to with electrically conductive 50 and utmost point post 40 electricity connection, not only can improve the ability of overflowing of the apron 100 of battery, can improve the production efficiency of the apron 100 of battery moreover, reduction in production cost.
As shown in fig. 2-6, the pure copper post at least partially protrudes from the cover plate main body 30, the conductive member 50 is provided with a through hole 51, and the pure copper post extends into the through hole 51 and is electrically connected to the inner peripheral wall of the through hole 51. Specifically, electrically conductive 50 has seted up through-hole 51, utmost point post 40 corresponds wears to establish apron main part 30 and electrically conductive 50, through making pure copper utmost point post partially bulge in apron main part 30 at least, pure copper utmost point post can correspond and stretch into in through-hole 51, and be connected with the internal perisporium contact electricity of through-hole 51, can realize utmost point post 40 like this and electrically connect between 50 electrically conductive, it is more simple and convenient to make the electric connection between utmost point post 40 and the electrically conductive 50, thereby can make the electric current draw out to electrically conductive 50 through utmost point post 40, guarantee the normal work of the apron 100 of battery.
Further, as shown in fig. 3-6, the conductive member 50 may mainly include a copper conductive portion 52 and an aluminum conductive portion 53, the copper conductive portion 52 is disposed below the aluminum conductive portion 53, the position of the copper conductive portion 52 corresponding to the inner circumference of the through hole 51 corresponds to the portion of the pure copper post protruding from the cover plate main body 30, and the copper conductive portion 52 is electrically connected to the pure copper post. Specifically, the copper conductive part 52 is disposed below the aluminum conductive part 53, so that the copper conductive part 52 can be electrically connected to the pure copper post, and the aluminum conductive part 53 can be electrically connected to the copper conductive part 52 by copper-aluminum transfer, thereby ensuring the normal operation of the cover plate 100 of the battery.
Furthermore, the position of the copper conductive part 52 corresponding to the inner circumference of the through hole 51 corresponds to the part of the pure copper pole protruding from the cover plate main body 30, so that the contact electrical connection between the copper conductive part 52 and the pure copper pole can be conveniently realized, the stability and reliability of the connection between the conductive part 50 and the pole 40 can be ensured, the overcurrent capacity between the conductive part 50 and the pole 40 can be ensured, the working performance of the cover plate 100 of the battery can be optimized, and the reliability of the cover plate 100 of the battery can be improved.
As shown in fig. 4-6, the copper conductive portion 52 is provided with a first position-limiting portion 511 corresponding to the inner circumference of the through hole 51, the pure copper post is provided with a second position-limiting portion 41, and the first position-limiting portion 511 is in position-limiting engagement with the second position-limiting portion 41. Specifically, through set up first spacing portion 511 in the position that copper conductive part 52 corresponds the internal week of through-hole 51, set up spacing portion 41 of second at pure copper utmost point post, corresponding when stretching into conductive piece 50's through-hole 51 with pure copper utmost point post like this, first spacing portion 511 can correspond and the cooperation of spacing portion 41 of second, thereby not only can realize quick and accurate location between pure copper utmost point post and the internal perisporium of copper conductive part 52, and can inject the displacement between copper conductive part 52 and the pure copper utmost point post, promote the stability of the electricity connection between conductive piece 50 and the utmost point post 40.
Further, as shown in fig. 6, the first limiting portion 511 is a first limiting step, the second limiting portion 41 is a second limiting step, and the first limiting step and the second limiting step are in limiting fit. Specifically, can set up first spacing portion 511 into first spacing step, set up spacing portion 41 of second into the spacing step of second, corresponding when stretching into the through-hole 51 of electrically conductive piece 50 with pure copper utmost point post like this, only need mutually support first spacing step and the spacing step of second, just can realize the spacing cooperation between first spacing portion 511 and the spacing portion 41 of second, thereby can make the simple structure of first spacing portion 511 and the spacing portion 41 of second, make the spacing cooperation between first spacing portion 511 and the spacing portion 41 of second more accurate fast, can promote the spacing cooperation's between first spacing portion 511 and the spacing portion 41 of second reliability, and then can promote the stability of the electricity connection between electrically conductive piece 50 and utmost point post 40.
The copper conductive part 52 is riveted and/or welded to the pure copper post at a position corresponding to the inner periphery of the through hole 51. Specifically, the position of the copper conductive part 52 corresponding to the inner periphery of the through hole 51 and the pure copper pole can be selectively riveted and fixed according to actual production requirements, or the position of the copper conductive part 52 corresponding to the inner periphery of the through hole 51 and the pure copper pole can be welded and fixed, or the position of the copper conductive part 52 corresponding to the inner periphery of the through hole 51 and the pure copper pole can be fixed in a riveting and welding manner, so that the stability and reliability of connection between the pole 40 and the conductive part 50 can be improved, the overcurrent capacity of the pole 40 is improved, and the working performance of the cover plate 100 of the battery can be improved.
As shown in fig. 1 to 3, the pole 40 is circular, racetrack-shaped, or oval, and extends along the length of the cover plate body 30. Specifically, the post 40 can be set to be a circular structure, a racetrack-shaped structure or an oval structure, and the post 40 extends in the length direction of the cover plate main body 30, so that the overcurrent cross-sectional area of the post 40 can be increased on the premise that the size of the cover plate 100 is not increased and the arrangement of other structures of the cover plate 100 is not affected, and therefore the overcurrent capacity of the post 40 can be further enhanced, and the overcurrent capacity of the cover plate 100 of the battery can be further enhanced.
In some embodiments of the present invention, the pure copper pole is an upset integrally formed pole 40. Specifically, the pure copper pole can be manufactured in an upsetting and pressing integrated forming mode, so that the production flow of the pure copper pole can be simplified, the production efficiency of the pole 40 can be improved, the batch production of the pole 40 is facilitated, and the material cost and the processing cost of the pole 40 can be reduced.
In some embodiments of the present invention, the copper-aluminum composite conductive element is a conductive element 50 formed by stamping and molding integrally. Specifically, the copper-aluminum composite conductive member can be produced by adopting a stamping and integral forming mode, so that the production flow of the copper-aluminum composite conductive member can be simplified, the production efficiency of the conductive member 50 is improved, and the mass production of the conductive member 50 is facilitated.
According to the utility model discloses battery, can mainly include: the cap plate 100 of the battery described above. Specifically, through being applied to the battery with the apron 100 of battery, pure copper utmost point post and the cooperation of the compound electrically conductive piece of copper aluminium set up, not only can increase the ability of overflowing of battery, promote the working property of battery, can reduce the manufacturing cost of battery moreover, promote the product competitiveness of battery.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A cap plate for a battery, comprising:
a tab connecting piece;
the insulating piece is arranged on the lug connecting piece;
a cover plate main body disposed on the insulating member;
the pole is arranged on the pole lug connecting piece and sequentially penetrates through the insulating piece and the cover plate main body, and the pole is a pure copper pole;
and the conductive piece is arranged on the cover plate main body and is electrically connected with the pole, and the conductive piece is a copper-aluminum composite conductive piece.
2. The cover plate of a battery according to claim 1, wherein the pure copper post at least partially protrudes from the cover plate main body, the conductive member is provided with a through hole, and the pure copper post extends into the through hole and is electrically connected with the inner peripheral wall of the through hole in a contacting manner.
3. The cover plate of a battery according to claim 2, wherein the conductive member includes a copper conductive portion and an aluminum conductive portion, the copper conductive portion is disposed below the aluminum conductive portion, a position of the copper conductive portion corresponding to an inner circumference of the through hole corresponds to a portion of the pure copper post protruding from the cover plate main body, and the copper conductive portion is electrically connected to the pure copper post.
4. The cover plate of the battery according to claim 3, wherein a first limiting portion is disposed at a position of the copper conductive portion corresponding to the inner periphery of the through hole, a second limiting portion is disposed on the pure copper post, and the first limiting portion is in limiting fit with the second limiting portion.
5. The cover plate for a battery according to claim 4, wherein the first position-limiting portion is a first position-limiting step, the second position-limiting portion is a second position-limiting step, and the first position-limiting step and the second position-limiting step are in position-limiting fit.
6. The battery cover plate according to claim 5, wherein the copper conductive part is riveted and/or welded to the pure copper post at a position corresponding to the inner periphery of the through hole.
7. The cap plate for a battery according to claim 1, wherein the terminal is formed in a circular, racetrack, or oval shape and extends in a longitudinal direction of the cap plate body.
8. The cover plate of a battery according to claim 1, wherein the pure copper post is an upset integrally formed post.
9. The battery cover plate of claim 1, wherein the copper-aluminum composite conductive member is a stamped and integrally formed conductive member.
10. A battery, comprising: a cap plate for a battery according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220850619.1U CN217387317U (en) | 2022-04-13 | 2022-04-13 | Battery cover plate and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220850619.1U CN217387317U (en) | 2022-04-13 | 2022-04-13 | Battery cover plate and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217387317U true CN217387317U (en) | 2022-09-06 |
Family
ID=83107924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220850619.1U Active CN217387317U (en) | 2022-04-13 | 2022-04-13 | Battery cover plate and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217387317U (en) |
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2022
- 2022-04-13 CN CN202220850619.1U patent/CN217387317U/en active Active
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