CN218788477U

CN218788477U - Copper-aluminum composite conductive bar structure

Info

Publication number: CN218788477U
Application number: CN202222746534.1U
Authority: CN
Inventors: 刘盛坚; 刘孟; 刘爽; 马本令; 王玉辉
Original assignee: Dongguan Zhongzhi Electronic Technology Co ltd
Current assignee: Dongguan Zhongzhi Electronic Technology Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-04-04
Anticipated expiration: 2032-10-18

Abstract

The utility model belongs to the technical field of the new forms of energy battery, especially, relate to a copper-aluminum composite conducting bar structure, including the conducting bar main part, conducting bar main part integrated into one piece, the conducting bar main part includes that copper conducts the conducting bar and the conducting bar of aluminium, copper conducts the conducting bar and includes first horizontal part, vertical portion and second horizontal part, one side of first horizontal part with the conducting bar of aluminium is connected, vertical portion in the opposite side of first horizontal part is the vertical extension of bending that makes progress, the second horizontal part in the upper end of vertical portion is outwards bent and is extended, and the preparation of copper-aluminum composite conducting bar structure is high-efficient fast, makes the copper-aluminum composite conducting bar structure enough guarantee the intensity of product, prevents that the conducting bar from appearing droing and leading to contact failure even the condition emergence of short circuit, can improve product production efficiency again, improves user's use experience.

Description

Copper-aluminum composite conductive bar structure

Technical Field

The utility model relates to a new energy battery technical field especially relates to a copper aluminium complex electrically conducts row structure.

Background

With the development of new energy battery technology, various new batteries have come into wide use. In the field of new energy automobile batteries, a single copper material or an aluminum material is used as a conventional conductive bar, and most of the conductive bars combined by the copper and aluminum materials on the market are compositely connected by a welding technology, such as ultrasonic welding, high polymer diffusion welding, friction welding and other welding processes.

However, the copper-aluminum busbar compositely connected by welding has many defects, such as a heterochromatic phenomenon after the surface is oxidized after the copper-aluminum welding; if the stability after welding is poor, parts are easy to deform and misplace, and the size cannot meet the requirement of high precision; moreover, due to the lack of welding strength, the copper material and the aluminum material fall off from the welding position, which causes poor connection contact, short circuit and serious even fire hazard of the battery pack. Therefore, it is necessary to design a copper-aluminum composite conductive bar structure to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a copper aluminium is compound to lead electrical drainage structure, aim at solving among the prior art copper aluminium is compound to lead electrical drainage and because of welded connection, heterochrosis, dislocation appear easily, bad contact appears even, the short circuit, influences the technical problem that the user used experience.

In order to achieve the above object, the embodiment of the utility model provides a copper-aluminum composite conducting bar structure, including the conducting bar main part, conducting bar main part integrated into one piece, the conducting bar main part includes that copper conducts the row and the aluminium conducts the row, copper conducts the row and includes first horizontal part, vertical portion and second horizontal part, one side of first horizontal part with the aluminium is conducted the row and is connected, vertical portion in the opposite side of first horizontal part is the vertical extension of bending that makes progress, the second horizontal part in the upper end of vertical portion is outwards bent and is extended, copper conduct the row with the equal punching press of aluminium is led the row and is had the nickel piece.

Optionally, the second horizontal part is provided with a first opening and a clamping block, the first opening is located in the center of the second horizontal part, the clamping block is arranged at the bending position of the second horizontal part and the bending position of the vertical part, and the clamping block protrudes outwards.

Optionally, a clamping through hole is formed in the middle of the vertical portion, and the clamping through hole is located below the clamping block.

Optionally, the second horizontal portion and the aluminum conductive bar are arranged in parallel.

Optionally, the aluminum conductive bar is provided with a second opening and a third opening, and the second opening and the third opening are aligned with each other in the aluminum conductive bar.

Optionally, the first openings are disposed in an elliptical shape, a major axis of the first openings is 7.8-8.2mm, and a minor axis of the first openings is 6.8-7.2mm.

Optionally, the second opening is arranged in a circle, and the diameter of the second opening is 3.8-4.2mm.

Optionally, the third opening is arranged in a circle, and the diameter of the third opening is 3.8-4.2mm.

Optionally, the copper conducting bar is electroplated with a nickel layer, and the thickness of the nickel layer is 5-20um.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the compound electrically conductive row structure of copper aluminium has one of following technological effect at least:

the utility model can effectively avoid the phenomena of metal oxidation, heterochrosis and welding deformation dislocation caused by welding connection of the copper conductive bar and the aluminum conductive bar by integrally forming the conductive bar main body, greatly save the volume space and improve the size precision; and because the conductive bar main part is the material shaping under the function of corresponding mould, realizes integrated into one piece, and the preparation of the compound electrically conductive structure of copper aluminium is high efficiency, makes the compound electrically conductive structure of copper aluminium enough guarantee the intensity of product, prevents to lead that the condition that the electrical bar appears droing and leads to contact failure or even short circuit to take place, can improve product production efficiency again, improves user's use and experiences, has high practicality.

Drawings

Fig. 1 is a schematic view of an overall structure of a copper-aluminum composite conductive bar structure provided in an embodiment of the present invention;

fig. 2 is a top view of a copper-aluminum composite conductive bar structure provided in an embodiment of the present invention;

fig. 3 is a front view of a copper-aluminum composite conducting bar structure provided by an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1. a conductive bar body; 2. A copper conducting bar; 21. A first horizontal portion;

22. a vertical portion; 221. Clamping the through holes; 24. A nickel layer;

23. a second horizontal portion; 231. A first opening; 232. A clamping block;

3. an aluminum conducting bar; 31. And a third opening. 32. And a second opening.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the embodiments of the present invention, and should not be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In an embodiment of the present invention, as shown in fig. 1 to 2, a copper-aluminum composite conducting bar structure is provided, including the conducting bar main body 1, the conducting bar main body 1 is integrally formed, the conducting bar main body 1 includes the copper conducting bar 2 and the aluminum conducting bar 3, the copper conducting bar 2 includes the first horizontal portion 21, the vertical portion 22 and the second horizontal portion 23, one side of the first horizontal portion 21 is connected with the aluminum conducting bar 3, the vertical portion 22 is bent upwards and vertically extended at the other side of the first horizontal portion 21, and the second horizontal portion 23 is bent outwards and extended at the upper end of the first horizontal portion 21.

The utility model can effectively avoid the phenomena of metal oxidation, heterochrosis and welding deformation dislocation caused by welding connection of the copper conductive bar 2 and the aluminum conductive bar 3 by integrally forming the conductive bar main body 1, greatly save the volume space and improve the size precision; and because the material shaping under the function of corresponding mould of leading electrical drainage main part 1, realize integrated into one piece, the preparation of the compound electrically conductive row structure of copper aluminium is high-efficient, makes the compound electrically conductive row structure of copper aluminium can enough guarantee the intensity of product, prevents to lead the condition emergence that the electrical drainage appears droing and leads to contact failure or even short circuit, can improve product production efficiency again, improves user's use and experiences, has high practicality.

Specifically, in another embodiment of the present invention, as shown in fig. 1 to 2, the second horizontal portion 23 is provided with a first opening 231 and a clamping block 232, the first opening 231 is located in the center of the second horizontal portion 23, the clamping block 232 is located at the bending position of the second horizontal portion 23 and the vertical portion 22, and the clamping block 232 protrudes to the outside. Further, a clamping through hole 221 is formed in the middle of the vertical portion 22, and the clamping through hole 221 is located below the clamping block 232. The clamping through hole 221 and the clamping block 232 are used for clamping with an external battery module, so that the conductive bar main body 1 is clamped on the battery module, and the conductive bar main body 1 and the battery module are conveniently connected through bolts in the following process. Furthermore, the clamping through hole 221 can be matched with an external battery module to be clamped, and meanwhile, the occupied space of materials and parts can be saved, and the practicability is high.

Specifically, in another embodiment of the present invention, as shown in fig. 1 to 2, the second horizontal portion 23 and the aluminum conductive bar 3 are disposed in parallel.

Specifically, in another embodiment of the present invention, as shown in fig. 1 to 2, the aluminum busbar 3 is provided with a second opening 32 and a third opening 31, and the second opening 32 and the third opening 31 are aligned up and down on the aluminum busbar 3.

Specifically, in another embodiment of the present invention, as shown in fig. 1 to 2, the first opening 231 is disposed in an elliptical shape, the major axis of the first opening 231 is 7.8-8.2mm, and the minor axis of the first opening 231 is 6.8-7.2mm. In the present embodiment, the major axis of the first hole 231 is 8.0mm, and the minor axis of the first hole 231 is 7.0mm.

Further, the second opening 32 is arranged in a circular shape, and the diameter of the second opening 32 is 3.8-4.2mm. In the present embodiment, the diameter of the second opening 32 is 4.0mm. Further, the third opening 31 is arranged in a circle, and the diameter of the third opening 31 is 3.8-4.2mm. In the present embodiment, the diameter of the third opening 31 is 4.0mm. Through setting up first trompil 231, second trompil 32 and third trompil 31, the user can pass through the bolt with copper busbar 2 and other power module fixed connection, make copper busbar 2 realize the effect of carrying electric current and connecting electrical equipment.

Further, the copper conducting bar is electroplated with a nickel layer 24, and the thickness of the nickel layer 24 is 5-20um. In the present embodiment, the nickel layer 24 is 10um thick. By electroplating the nickel layer 24 on the copper conducting bar, the corrosion resistance of the conducting bar is improved, the influence on the conducting capability of the conducting bar caused by chemical corrosion can be effectively avoided, and the service life of the conducting bar is prolonged.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a copper aluminium composite conducting bar structure, includes the conducting bar main part, its characterized in that, conducting bar main part integrated into one piece, the conducting bar main part includes that copper conducts row and aluminium and conducts the row, copper conducts the row and includes first horizontal part, vertical portion and second horizontal part, one side of first horizontal part with aluminium conducts the row and connects, vertical portion in the opposite side of first horizontal part is the vertical extension of bending that makes progress, the second horizontal part in the upper end of vertical portion is outwards bent and is extended.

2. The copper-aluminum composite conducting bar structure as recited in claim 1, wherein the second horizontal portion is provided with a first opening and a clamping block, the first opening is located in the center of the second horizontal portion, the clamping block is located at the bending position of the second horizontal portion and the vertical portion, and the clamping block protrudes outward.

3. The copper-aluminum composite conducting bar structure as recited in claim 2, wherein a clamping through hole is provided in the middle of the vertical portion, and the clamping through hole is located below the clamping block.

4. The copper-aluminum composite busbar structure according to claim 3, wherein the second horizontal portion and the aluminum busbar are arranged in parallel.

5. The copper-aluminum composite busbar structure according to claim 4, wherein the aluminum busbar is provided with a second opening and a third opening, and the second opening and the third opening are vertically aligned with each other and arranged on the aluminum busbar.

6. The copper-aluminum composite busbar structure according to any one of claims 2 to 5, wherein the first openings are oval, the major axis of the first openings is 7.8 to 8.2mm, and the minor axis of the first openings is 6.8 to 7.2mm.

7. The copper-aluminum composite busbar structure according to claim 5, wherein the second openings are arranged in a circle, and the diameter of the second openings is 3.8-4.2mm.

8. The copper-aluminum composite busbar structure according to claim 5, wherein the third opening is circular, and the diameter of the third opening is 3.8-4.2mm.

9. The copper-aluminum composite busbar structure according to any one of claims 1 to 5, wherein said copper busbar is plated with a nickel layer, said nickel layer having a thickness of 5 to 20 μm.