Conductive assembly

By using laser welding and connecting fin design, the deformation problem caused by tightening during the connection process of automotive busbars is solved, enhancing the connection strength and service life, and achieving a stable connection between the busbar and the connector.

CN223552818UActive Publication Date: 2025-11-14AUTO KABEL TAICANG HARDNESS
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Patent Information

Application Number
CN202423132085.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-11-14
Estimated Expiration
2034-12-18

AI Technical Summary

Technical Problem

When connecting existing automotive busbars, the conductive ring is easily deformed during the tightening process, which damages the connection and affects the connection strength and service life.

Method used

The design incorporates laser welding combined with connecting fins and assembly holes. The welding position is changed by using connecting fins, and the connection strength between the busbar and the connector is enhanced by using butt welding, through welding and other methods, thus avoiding stress concentration on the busbar.

Benefits of technology

This improves the connection strength and service life of the busbar and connectors, ensuring connection stability and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a conductive assembly, which comprises a conducting bar and a connecting piece, the connecting piece comprises a connecting main body, the connecting main body is of a platy structure, and the joint of the connecting main body and the conducting bar is fixed through laser welding. According to the utility model, through cooperation of the connecting pieces and the conducting bars, fixing, series connection and parallel connection of the conducting bars are realized. The connecting piece is provided with a connecting fin, the welding position between the connecting piece and the conducting bar is changed through the connecting fin, and the connecting strength between the conducting bar and the connecting piece is further enhanced through butt welding, penetration welding and the like of laser welding. The connecting piece is provided with the assembling hole, so that the stress is not applied to the conducting bar, and the service life of the conducting bar and the connecting piece is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of conductive elements, and in particular to a conductive component. Background Technology

[0002] In recent years, the automotive industry has developed rapidly along with the improvement of the economy and people's living standards. Among them, automotive busbars are a type of conductor connector that needs to be used in automobiles. Common automotive busbars include copper busbars and aluminum busbars.

[0003] Chinese patent CN116722374A describes a flat aluminum busbar structure, which involves a conductive ring at the end of the aluminum busbar body, connecting it to a wire lug. However, when the wire lug is connected to the conductive ring, excessive torque during tightening can cause deformation of the conductive ring, thereby damaging the connection between the conductive ring and the aluminum busbar body. Utility Model Content

[0004] In view of the above-mentioned defects in the prior art, the main purpose of this utility model is to overcome the shortcomings of the prior art and disclose a conductive component, including a conductive busbar and a connector. The connector includes a connecting body, which is a plate-shaped structure. The joint between the connecting body and the conductive busbar is fixed by laser welding.

[0005] Furthermore, at least one set of connecting components is provided on the connecting body. The connecting components include two or three connecting wings extending around the connecting body. The connecting wings form a groove with the connecting body to cooperate with the conductive busbar. A weld is provided between the end face of the connecting wing and the surface of the conductive busbar.

[0006] Furthermore, at least one mounting hole is provided on the connecting body.

[0007] Furthermore, the assembly hole is either a round hole or an oblong hole.

[0008] Furthermore, the connecting body extends to provide a connecting portion, and the mounting hole is provided on the connecting portion.

[0009] Furthermore, the mounting hole is provided on the connecting body, and the conductive busbar is provided with a through hole. The mounting hole is located inside the through hole, and the through hole is larger than the mounting hole.

[0010] Furthermore, the laser welding employs one of the following: butt welding, a combination of butt welding and penetration welding, or a combination of butt welding and fillet welding.

[0011] Furthermore, the conductive busbar can be a single-layer conductive busbar or a multi-layer conductive busbar.

[0012] Furthermore, the conductive busbar is made of pure copper, copper alloy, pure aluminum, or aluminum alloy.

[0013] Furthermore, the connector is made of pure copper, copper alloy, pure aluminum, or aluminum alloy.

[0014] The beneficial effects achieved by this utility model are as follows:

[0015] This invention utilizes a connector and a conductive busbar to achieve fixed, series, and parallel connections of the conductive busbars. The connector is equipped with connecting wings, which alter the welding position between the connector and the conductive busbar. Combined with laser welding techniques such as butt welding and through welding, the connection strength between the conductive busbar and the connector is further enhanced. Assembly holes are provided on the connector, so that the stress is not concentrated on the conductive busbar, thus improving the service life of both the conductive busbar and the connector. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the single-layer conductive busbar and the connecting component without connecting wings of this utility model.

[0017] Figure 2 A schematic diagram of a structure in which a single-layer conductive busbar is welded to a connector without connecting fins in three directions;

[0018] Figure 3 for Figure 2 AA section view;

[0019] Figure 4 A schematic diagram showing the welding and fixing of a single-layer conductive busbar to both sides of a connector with connecting wings;

[0020] Figure 5 A schematic diagram showing the welding and fixing of a single-layer conductive busbar to a connector with connecting wings on three sides;

[0021] Figure 6 A schematic diagram showing the welding and fixing of a multi-layer conductive busbar to both sides of a connector with connecting wings;

[0022] Figure 7 for Figure 6 AA section view;

[0023] Figure 8 A schematic diagram showing the three-sided welding and fixing of a multi-layer conductive busbar and a connector with connecting wings;

[0024] Figure 9 A schematic diagram of a connector with a connecting part welded to both sides of a conductive busbar;

[0025] Figure 10 A schematic diagram of a connector with a connecting part welded to three sides of a conductive busbar;

[0026] Figure 11 A schematic diagram of a connector with connecting parts and connecting wings welded to both sides of a single-layer conductive busbar;

[0027] Figure 12 A schematic diagram of a connector with connecting parts and connecting wings welded to both sides of a multi-layer conductive busbar;

[0028] Figure 13 A schematic diagram of a connector that links two conductive busbars in parallel.

[0029] Figure 14 A schematic diagram of a connector that turns two busbars into series connection.

[0030] The attached figures are labeled as follows:

[0031] 1. Conductive busbar, 2. Connector, 3. Weld, 11. Through hole, 21. Connecting body, 22. Assembly hole, 23. Connecting wing, 24. Connecting part. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0033] A conductive component includes a conductive busbar 1 and a connector 2. The connector 2 includes a connecting body 21, which is a plate-shaped structure. The joint between the connecting body 21 and the conductive busbar 1 is fixed by laser welding.

[0034] Example 1

[0035] like Figures 1-3 As shown, the conductive busbar 1 is a single-layer conductive busbar, the connector 2 is a plate-shaped structure, the connector 2 has an assembly hole 22 in the middle, the circumferential dimension of the connector 2 matches the dimension of the conductive busbar 1, the conductive busbar 1 has a through hole 11, the assembly hole 22 is located in the through hole 11, and the through hole 11 is larger than the assembly hole 22.

[0036] The joint between connector 2 and conductive busbar 1 is fixed at least on both sides by laser welding to form weld seam 3. Laser welding can be performed using butt welding. Specifically, for example... Figure 1 As shown, when laser welding is performed at two locations, the weld seams are located on opposite sides of the conductive busbar 1. Figure 2 and Figure 3 As shown, when laser welding is performed at three points, the three sides of the conductive busbar 1 are welded and fixed to the connector 2.

[0037] Example 2

[0038] like Figure 4 and 5As shown, the conductive busbar 1 is a single-layer conductive busbar, the connector 2 is a plate-shaped structure, the connector 2 has an assembly hole 22 in the middle, the circumferential dimension of the connector 2 matches the dimension of the conductive busbar 1, the conductive busbar 1 has a through hole 11, the assembly hole 22 is located in the through hole 11, and the through hole 11 is larger than the assembly hole 22.

[0039] At least one set of connecting components is provided on the connecting body 21. In this embodiment, one set of connecting components is provided, and the connecting components include two or three connecting wings 23 extending around the connecting body 21, such as... Figure 4 The diagram shows a connector 2 with two connecting wings 23. The connecting wings 23 on both sides form grooves with the connecting body 21, and these grooves cooperate with the conductive busbar. The connecting wings 23 are in close contact with the side wall of the conductive busbar 1. The end face of the connecting wing 23 is fixed to the surface of the conductive busbar 1 by laser welding. The fixing can be done by a combination of butt welding and through welding to form a weld 3. The welding strength can be increased by the above method, and the connection strength between the conductive busbar 1 and the connector can be improved.

[0040] like Figure 5 The diagram shows a structural schematic of a connector 2 with three connecting wings 23. The connecting body 21 and the three connecting wings 23 form a groove that matches the conductive busbar 1. The end faces of the connecting wings 23 on the three sides are fixed to the surface of the conductive busbar 1 by a combination of welding and through welding to form a weld 3. The welding strength can be increased by the above method, thereby improving the connection strength between the conductive busbar 1 and the connector.

[0041] Example 3

[0042] like Figures 6-8 As shown, the conductive busbar 1 is a multi-layer conductive busbar, the connector 2 is a plate-shaped structure, the connector 2 has an assembly hole 22 in the middle, the circumferential dimension of the connector 2 matches the dimension of the conductive busbar 1, the conductive busbar 1 has a through hole 11, the assembly hole 22 is located in the through hole 11, and the through hole 11 is larger than the assembly hole 22.

[0043] At least one set of connecting components is provided on the connecting body 21. In this embodiment, one set of connecting components is provided, and the connecting components include two or three connecting wings 23 extending around the connecting body 21, such as... Figure 6 and Figure 7 The diagram shows a connector 2 with two connecting wings 23. The connecting wings 23 on both sides form grooves with the connecting body 21, and these grooves cooperate with the conductive busbar. The connecting wings 23 are tightly attached to the side wall of the conductive busbar 1. The end face of the connecting wing 23 is laser welded to the surface of the conductive busbar 1. The welding can be done by a combination of butt welding and through welding to form a weld 3. By using butt welding, the multi-layer conductive busbar 1 can be connected and fixed at the same time as connecting the conductive busbar 1 and the connecting wings 23. The above method can increase the welding strength and improve the connection strength between the conductive busbar 1 and the connector.

[0044] like Figure 8 The diagram shows a structural schematic of a connector 2 with three connecting wings 23. The connecting body 21 and the three connecting wings 23 form a groove that mates with the conductive busbar 1. The end faces of the connecting wings 23 on the three sides are fixed to the surface of the conductive busbar 1 by a combination of butt welding and through welding to form a weld seam 3. By using butt welding, the multi-layer conductive busbar 1 can be connected and fixed at the same time as connecting the conductive busbar 1 and the connecting wings 23. The above method can increase the welding strength and improve the connection strength between the conductive busbar 1 and the connector.

[0045] Example 4

[0046] like Figures 9-10 As shown, a connecting part 24 extends from one side of the connecting body 21, and an assembly hole 22 is provided on the connecting part 24.

[0047] like Figure 9 As shown, the connecting body 21 is a plate-like structure. The circumferential dimension of the connecting member 2 matches the dimension of the conductive busbar 1. The connecting member 2 and the conductive busbar 1 are stacked together, and their circumferential dimensions are fixed by butt welding to form a weld. Preferably, as shown... Figure 10 As shown, a stepped structure is formed between the conductive busbar 1 and the connecting body 21, and the conductive busbar 1 and the connecting body 21 can be connected by fillet welding to increase the connection strength between the conductive busbar 1 and the connecting body 21.

[0048] Example 5

[0049] like Figures 11-12 As shown, a connecting portion 24 extends from one side of the connecting body 21, and an assembly hole 22 is provided on the connecting portion. Connecting wings 23 extend from both sides of the connecting body 21, forming grooves with the connecting body 21 to mate with the conductive busbar 1. The conductive busbar 1 is placed in the grooves, and the gaps between the two ends of the connecting wings 23 and the conductive busbar 1 are fixedly connected by butt welding and through welding, so that the connecting body 21, the connecting wings 23 and the conductive busbar 1 are connected together, further improving the connection strength between the conductive busbar 1 and the connecting member 2. Figure 11 The diagram shown illustrates the connection structure between the single-layer conductive busbar 1 and the connector 2. Figure 12 The diagram shown is a schematic diagram of the connection structure between the multi-layer conductive busbar and the connector 2.

[0050] Example 6

[0051] like Figures 13-14 As shown, the conductive busbar 1 is a single-layer or multi-layer conductive busbar.

[0052] Two sets of connecting components are provided on the connecting body 21. The connecting body 21 can be straight or L-shaped, such as... Figure 13As shown, the connecting body 21 is in the shape of a straight line. Connecting components are respectively provided on both sides of the connecting body 21. That is, connecting wings 23 extend from both ends of the connecting body 21. The connecting wings 23 and the connecting body 21 form a groove that mates with the conductive busbar 1. The conductive busbar 1 is placed in the groove. The gap between the end of the connecting wing 23 and the conductive busbar 1 is fixed by butt welding and through welding to form a weld 3, thereby realizing the connection and fixation between the conductive busbar 1 and the connecting member 2. Through the above structure, the connecting member 2 realizes the parallel connection of the conductive busbars; that is, one end of the connecting member 2 is connected to the middle of the conductive busbar 1, and the other end is connected to another conductive busbar 1.

[0053] like Figure 14 As shown, the connecting column 21 is L-shaped, and its two ends are connected to the conductive busbar 1 through the connecting fins 23, so as to realize the series connection of the two conductive busbars 1.

[0054] In one embodiment, the conductive bus 1 is made of pure copper, copper alloy, pure aluminum, or aluminum alloy.

[0055] In one embodiment, the connector 2 is made of pure copper, copper alloy, pure aluminum, or aluminum alloy.

[0056] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of implementation of the present utility model. Any modifications or equivalent substitutions to the present utility model without departing from the spirit and scope thereof should be covered within the protection scope of the claims of the present utility model.

Claims

1. A conductive component, characterized in that, It includes a conductive busbar and a connector. The connector includes a connecting body, which is a plate-shaped structure. The joint between the connecting body and the conductive busbar is fixed by laser welding.

2. A conductive component according to claim 1, characterized in that, At least one set of connecting components is provided on the connecting body. The connecting components include two or three connecting wings extending around the connecting body. The connecting wings form a groove with the connecting body to cooperate with the conductive busbar. A weld is provided between the end face of the connecting wing and the surface of the conductive busbar.

3. A conductive component according to claim 1, characterized in that, At least one assembly hole is provided on the connecting body.

4. A conductive component according to claim 3, characterized in that, The assembly hole is either a round hole or an oblong hole.

5. A conductive component according to claim 3, characterized in that, The connecting body extends to form a connecting portion, and the assembly hole is provided on the connecting portion.

6. A conductive component according to claim 3, characterized in that, The assembly hole is provided on the connecting body, and the conductive busbar is provided with a through hole. The assembly hole is located inside the through hole, and the through hole is larger than the assembly hole.

7. A conductive component according to claim 1, characterized in that, The laser welding is performed using one of the following methods: butt welding, a combination of butt welding and penetration welding, or a combination of butt welding and fillet welding.

8. A conductive component according to claim 1, characterized in that, The conductive busbar can be a single-layer conductive busbar or a multi-layer conductive busbar.

9. A conductive component according to claim 1, characterized in that, The conductive busbar is made of pure copper, copper alloy, pure aluminum, or aluminum alloy.

10. A conductive component according to claim 1, characterized in that, The connector is made of pure copper, copper alloy, pure aluminum, or aluminum alloy.

Citation Information

Patent Citations

  • Flat aluminum bar structure

    CN116722374A