CN212625960U - High-current-carrying battery composite connecting sheet capable of being balanced and fused - Google Patents
High-current-carrying battery composite connecting sheet capable of being balanced and fused Download PDFInfo
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- CN212625960U CN212625960U CN202021420578.XU CN202021420578U CN212625960U CN 212625960 U CN212625960 U CN 212625960U CN 202021420578 U CN202021420578 U CN 202021420578U CN 212625960 U CN212625960 U CN 212625960U
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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 a high current-carrying battery composite connecting sheet capable of being evenly melted, which comprises a nickel sheet and a copper bar which are spot welded together; one end of the nickel sheet is connected with the fusing fuse; the nickel sheet is uniformly provided with current balance breaking grooves and connecting sheet spot welding grooves at intervals; the copper bar is provided with a plurality of abdicating holes; the connecting piece spot welding groove is positioned inside the yielding hole. The utility model discloses to being connected the unbalanced problem of back current-carrying between electric core and the electric core, cut off the groove through bottom nickel piece electric current is balanced to combine top layer copper bar to converge and realize the balanced problem of current-carrying. Aiming at the problems that the fusing strength of a single electric core connecting sheet in the short circuit process is poor and the power failure risk exists in the use process, the fusing protection of a main loop fuse is realized by riveting and fusing the fuse of the main loop, so that the fracture risk of the connecting sheet at the spot welding position of the electric core in the use process is avoided.
Description
Technical Field
The utility model relates to a battery technology field especially involves a but balanced high current-carrying battery composite connection piece of melting.
Background
With the great development of the new energy field, the connection modes between the electric core and the electric core in the power battery product are more and more. Based on the importance of people on safety, how to realize the safety protection in the use process of the battery under the premise of ensuring the use is more and more emphasized by people, and the safety protection method also becomes a difficult problem in the design process of battery products.
The existing conventional connection schemes of the battery core and the battery core are generally as follows:
1. the electric core is directly connected with the electric core by adopting pure nickel plate resistance welding or laser spot welding, the current is conducted through the pure nickel plate, the temperature of the electric core is sharply increased in the process of short circuit of the battery pack, and the risk of explosion and fire of the battery exists.
2. The connecting piece that adopts ordinary nickel piece + copper sheet makes and is connected between electric core and the electric core, adopts spot welding to connect between copper sheet and the nickel piece, increases the area of converging for the electric current passes through the busbar, reduces the heat that heavy current produced, but because laser spot welding impedance is great among the actual test process, still has the heavy current to pass through the phenomenon on the nickel strap, still has the risk that the battery explosion spontaneous combustion that generates heat in the short circuit process.
3. After the connecting sheet is grooved, the connecting sheet is welded with the battery core, and in the short circuit process of the battery, the grooved position of the connecting sheet is heated and fused to form short circuit protection, so that the risk of spontaneous combustion caused by heat explosion of the battery is avoided. However, in the actual use process, the fusing requires that the overall strength of the connecting sheet is reduced after the connecting sheet is perforated, the connecting sheet is broken in the use process of the battery pack, and the risk of abnormal discharge of the whole battery pack is still an unavoidable high-risk phenomenon for the use of battery products.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the weak point among the above-mentioned prior art and provide a current-carrying is balanced, possesses the high current-carrying battery composite connection piece that can balanced meltdown of insurance fusing protection simultaneous connection piece intensity.
The utility model discloses a realize through following mode:
the utility model provides a but high current-carrying battery composite connection piece of balanced melt, includes the connection piece, its characterized in that: the connecting sheet comprises a nickel sheet and a copper bar which are spot-welded together; one end of the nickel sheet is connected with the fusing fuse; the nickel sheet is uniformly provided with current balance breaking grooves and connecting sheet spot welding grooves at intervals; the copper bar is provided with a plurality of abdicating holes; the connecting piece spot welding groove is positioned inside the yielding hole.
Further, the copper bar is arranged on the upper surface of the nickel sheet.
Furthermore, one end of the nickel sheet extends to an extension part in the direction perpendicular to the nickel sheet, and the extension part is provided with a riveting hole connected with the fusing fuse.
Furthermore, the current balance separation groove is arranged on the same side of the spot welding groove of the connecting sheet.
Further, the current balance isolation groove is a rectangular groove.
Furthermore, the connecting piece spot welding groove is I-shaped.
Furthermore, the connecting piece is provided with a positioning hole penetrating through the nickel sheet and the copper bar.
The beneficial effects of the utility model reside in that:
1. aiming at the problem of unbalanced current carrying after the connection between the electric core and the electric core, the current carrying balance is realized by combining the bottom layer nickel plate current balance partition groove with the surface layer copper bar confluence.
2. Aiming at the problems that the fusing strength of a single electric core connecting sheet in the short circuit process is poor and the power failure risk exists in the use process, the fusing protection of a main loop fuse is realized by riveting and fusing the fuse of the main loop, so that the fracture risk of the connecting sheet at the spot welding position of the electric core in the use process is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is an exploded view of the structure of the present invention;
FIG. 2 is a perspective view of the structure of the present invention;
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between 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.
Example (b):
as shown in fig. 1-2, the high current-carrying battery composite connecting sheet capable of being balanced and melted comprises a connecting sheet, wherein the connecting sheet comprises a nickel sheet 2 and a copper bar 3 which are spot-welded together; one end of the nickel sheet 2 is connected with the fusing fuse 1; the nickel sheet 2 is uniformly provided with current balance separation grooves 22 and connecting sheet spot welding grooves 23 at intervals; the copper bar 3 is provided with a plurality of abdicating holes 31; the connecting piece spot welding groove 23 is positioned inside the abdicating hole 31.
Further, the copper bar 3 is arranged on the upper surface of the nickel sheet 2.
Furthermore, one end of the nickel sheet 2 extends to an extension part in a direction perpendicular to the nickel sheet 2, and the extension part is provided with a riveting hole 21 connected with the fusing fuse 1.
Further, the current balance breaking groove 22 is provided on the same side as the connecting piece spot welding groove 23.
Further, the current balance blocking slot 22 is a rectangular slot.
Further, the connecting piece spot welding groove 23 is in an i shape.
Furthermore, the connecting piece is provided with a positioning hole 4 penetrating through the nickel sheet 2 and the copper bar 3.
To being connected the unbalanced problem of back current-carrying between electric core and the electric core, electric core and electric core are connected and are used nickel piece 2 to add copper bar 3 and link together through laser spot welding, cut off the hookup location of nickel piece 2 fluting disconnection in order to realize that the electric current moves towards balancedly, cut off through physics and make the electric current move towards converging on the copper bar 3 to realize that the electric current is balanced.
The utility model discloses well short circuit protection mechanism adopts the major loop protection mechanism, sets up fusing fuse 1 at nickel piece 2 ends promptly, and when the short-circuit process took place, major loop electric current sharply increases fusing fuse 1 structure to realize the fusing protection. Avoid because the connection piece cuts the connection piece intensity reduction that leads to, and the battery outage risk that produces.
The utility model provides a nickel piece 2 and copper bar 3 are the die sinking finished piece of deciding, and nickel piece 2 uses pure nickel, and copper bar 3 uses the difficult oxidation of copper nickel plating technology, and based on different electric current demands, connection piece thickness and substrate can carry out the customization adjustment, improve the suitability.
The utility model provides a fuse is current-resistant fuse, and the accessible riveting is connected with nickel piece 2, and the fuse structure through different current-resistant requirements realizes the short circuit protection requirement under the different current circumstances.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a but high current-carrying battery composite connection piece of balanced melt, includes the connection piece, its characterized in that: the connecting sheet comprises a nickel sheet (2) and a copper bar (3) which are spot-welded together; one end of the nickel sheet (2) is connected with the fusing fuse (1); the nickel sheet (2) is uniformly provided with current balance breaking grooves (22) and connecting sheet spot welding grooves (23) at intervals; the copper bar (3) is provided with a plurality of abdicating holes (31); the connecting piece spot welding groove (23) is positioned inside the yielding hole (31).
2. A balanceable, blowable, high current carrying battery composite tab according to claim 1, wherein: the copper bar (3) is arranged on the upper surface of the nickel sheet (2).
3. A balanceable, blowable, high current carrying battery composite tab according to claim 1, wherein: one end of the nickel sheet (2) extends to an extension part in the direction perpendicular to the nickel sheet (2), and the extension part is provided with a riveting hole (21) connected with the fusing fuse (1).
4. A balanceable, blowable, high current carrying battery composite tab according to claim 1, wherein: the current balance separation groove (22) is arranged on the same side of the connecting sheet spot welding groove (23).
5. A balanceable, blowable, high current carrying battery composite tab according to claim 1, wherein: the current balance isolation groove (22) is a rectangular groove.
6. A balanceable, blowable, high current carrying battery composite tab according to claim 1, wherein: the connecting piece spot welding groove (23) is I-shaped.
7. A balanceable, blowable, high current carrying battery composite tab according to claim 1, wherein: the connecting piece is provided with a positioning hole (4) penetrating through the nickel sheet (2) and the copper bar (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021420578.XU CN212625960U (en) | 2020-07-17 | 2020-07-17 | High-current-carrying battery composite connecting sheet capable of being balanced and fused |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021420578.XU CN212625960U (en) | 2020-07-17 | 2020-07-17 | High-current-carrying battery composite connecting sheet capable of being balanced and fused |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212625960U true CN212625960U (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021420578.XU Active CN212625960U (en) | 2020-07-17 | 2020-07-17 | High-current-carrying battery composite connecting sheet capable of being balanced and fused |
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| CN (1) | CN212625960U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114865232A (en) * | 2022-05-30 | 2022-08-05 | 安徽久兴源新能源科技集团有限公司 | Battery connecting sheet for solving battery welding height difference |
-
2020
- 2020-07-17 CN CN202021420578.XU patent/CN212625960U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114865232A (en) * | 2022-05-30 | 2022-08-05 | 安徽久兴源新能源科技集团有限公司 | Battery connecting sheet for solving battery welding height difference |
| CN114865232B (en) * | 2022-05-30 | 2023-10-20 | 安徽久兴源新能源科技集团有限公司 | Battery connecting sheet for solving battery welding height difference |
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