Conductive aluminum bar

Abstract

The utility model discloses a conductive aluminum bar which comprises an aluminum bar body and a connecting plate, the connecting plate is provided with at least one convex part and a connecting part, the aluminum bar body is provided with a through hole, the convex part is arranged in the through hole, and the surface of the aluminum bar body is contacted with the connecting plate; and the convex parts are fixed with the aluminum bar body through welding. According to the utility model, the connecting plate is fixedly connected with the aluminum bar body, and is connected with a target piece, so that the damage of the welding position of the connecting plate and the aluminum bar body caused by large torsion when the connecting plate is connected with the target piece is avoided, and the service life is prolonged. The connecting plate and the aluminum bar body are fixed through laser welding, the protruding parts are arranged on the connecting plate, the contact area between the connecting plate and the aluminum bar body is increased, and the connecting strength between the connecting plate and the aluminum bar body is greatly improved through cooperation of butt welding, penetration welding and angle welding. Through holes are formed in the protruding parts and serve as standby holes, and parallel connection of multiple aluminum bars can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of conductive connection, in particular to a conductive aluminum busbar. Background Art

[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 kind of conductor connector needed to be used in automobiles. The more common automotive busbars include copper busbars, aluminum busbars, etc.

[0003] Chinese patent CN116722374A discloses a flat aluminum bar structure, which records that a conductive ring is provided at the end of the aluminum bar body, and is connected to a wire nose through the conductive ring. When the wire nose is connected to the conductive ring, when tightening, there is excessive torque, causing the conductive ring to deform, thereby damaging the connection between the conductive ring and the aluminum bar body. Utility Model Content

[0004] In view of the defects of the above-mentioned prior art, the main purpose of the utility model is to overcome the shortcomings of the prior art and discloses a conductive aluminum busbar, including an aluminum busbar body and a connecting plate, at least one protrusion and a connecting portion are arranged on the connecting plate, a through hole is arranged on the aluminum busbar body, the protrusion is placed in the through hole, and the surface of the aluminum busbar body is in contact with the connecting plate; the protrusion is fixed to the aluminum busbar body by welding.

[0005] Furthermore, the protrusion and the aluminum bar body are fixed by butt welding and penetration welding.

[0006] Furthermore, the end surface of the aluminum bar body is fixed to the aluminum bar body by fillet welding.

[0007] Furthermore, the convex portion is formed by stamping.

[0008] Furthermore, a through hole is formed in the middle of the convex portion.

[0009] Further, the connecting portion is a connecting hole and / or the convex portion.

[0010] Furthermore, the through hole is one of circular, square, oblong and elliptical.

[0011] Furthermore, the aluminum bar body is made of pure aluminum or aluminum alloy.

[0012] Furthermore, the connecting plate is made of pure copper, copper alloy, pure aluminum or aluminum alloy.

[0013] Furthermore, a plating layer is provided on the surface of the connecting plate.

[0014] Beneficial effects achieved by the utility model:

[0015] The utility model is connected and fixed with the aluminum bar body through the connecting plate, and connected with the target part through the connecting plate, so as to avoid damage to the welding position of the connecting plate and the aluminum bar body due to large torque when connected with the target part, and improve the service life. The connecting plate and the aluminum bar body are fixed by laser welding, and a convex part is arranged on the connecting plate to increase the contact area with the aluminum bar body, and the connection strength between the connecting plate and the aluminum bar body is greatly improved by butt welding, penetration welding and fillet welding. A through hole is arranged on the convex part, and the through hole is used as a spare hole to realize parallel connection of multiple aluminum bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a conductor aluminum bar of the utility model;

[0017] Figure 2 for Figure 1 A top view of

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

[0019] Figure 4 It is a schematic diagram of the structure of the aluminum bar body and the connecting plate through butt welding, penetration welding and fillet welding;

[0020] Figure 5 It is a schematic diagram of the connection structure between the connection plate with two protrusions and the aluminum bar body;

[0021] Figure 6 It is a schematic diagram of the connection structure between the connection plate with through holes provided on the convex part and the aluminum bar body;

[0022] Figure 7 This is a schematic diagram of the structure of connecting two aluminum bar bodies in series through a connecting plate;

[0023] Figure 8 It is a structural schematic diagram of an aluminum bar body connected to another aluminum bar body in the middle through a connecting plate;

[0024] Fig. 9 A schematic diagram of the structure of the connection plate with the oblong protrusion connected to the aluminum bar body;

[0025] The reference numerals are as follows:

[0026] 1. Aluminum bar body, 2. Connecting plate, 3. Welding seam, 21. Protrusion, 22. Connecting part, 211. Through hole. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] A conductive aluminum busbar, such as Figure 1-Figure 3 As shown, it includes an aluminum bar body 1 and a connecting plate 2. At least one protrusion 21 and a connecting portion 22 are provided on the connecting plate 1. The protrusion 21 is used to connect with the aluminum bar body 1, and the connecting portion 22 is used to connect with the aluminum bar body 1 or other target parts. Specifically, a through hole is provided on the aluminum bar body 1. When the connecting plate 2 is connected to the aluminum bar body 1, the protrusion 21 is placed in the through hole, and the surface of the aluminum bar body 1 is in contact with the connecting plate 2. The protrusion 21 is fixed to the aluminum bar body 1 by welding. Specifically, the shape of the protrusion 21 is the same as the shape of the through hole; the size of the protrusion 21 is the same as the size of the through hole, or slightly smaller than the size of the through hole. Preferably, the single-sided gap between the protrusion 21 and the through hole is controlled to be 1-3mm.

[0029] In one embodiment, if Figure 1-Figure 3 As shown, the convex part 21 is fixed to the aluminum bar body 1 by butt welding and penetration welding. Specifically, an annular seam is formed between the convex part 21 and the through hole, and the laser is welded around the seam. The convex part 21 is connected and fixed to the through hole by butt welding, and the laser welding energy is increased to penetrate the connecting plate 2 to achieve penetration welding, so that the weld 3 extends to the connecting plate, thereby improving the connection strength between the aluminum bar body 1 and the connecting plate 2.

[0030] In the above embodiment, if Figure 4 As shown, the end face of the aluminum bar body 1 is fixed to the connecting plate 2 by fillet welding, thereby further improving the connection strength between the aluminum bar body 1 and the connecting plate 2.

[0031] In one embodiment, the number of the protrusions 21 and the through holes can be two or more; Figure 5 As shown, the number of the protrusion 21 and the pupil 11 is set to two, and the two through holes are arranged at intervals, so as to achieve multi-point fixation and further improve the connection strength.

[0032] In one embodiment, the protrusion 21 is formed by stamping.

[0033] In one embodiment, if Figure 6 As shown, the middle of the convex part 21 is a through hole 211. The through hole 211 is used as a spare connection hole. When multiple aluminum bar bodies 1 need to be connected in parallel, the connection can be achieved by passing a connecting rod through the through hole 211, thereby saving assembly space. An internal thread can be set in the through hole 211, thereby achieving stacking of multiple aluminum bar bodies 1. And the spacing between two adjacent aluminum bar bodies 1 can be guaranteed.

[0034] In one embodiment, if Figure 7-Figure 8As shown, the connection part 22 is a connection hole and / or a convex part. When the connection part 22 is a convex part, another aluminum bar body 1 is connected through the convex part to realize the series connection of the aluminum bar body 1. When the connection part 22 is a connection hole, the connection hole can be fixed with a wire nose, or directly fixed at a specified position by a fastener such as a screw. No matter how much torque is applied, the connection part between the connection plate 2 and the aluminum bar body 1 will not be damaged.

[0035] In one embodiment, the through hole is one of a circular, square, oblong, and elliptical shape. Fig. 9 As shown, the protrusion 21 and the through hole are mutually matched oblong structures, and the joints thereof are fixed by butt welding and penetration welding to form a weld 3.

[0036] In one embodiment, the aluminum bar body 1 is made of pure aluminum or aluminum alloy.

[0037] In one embodiment, the connecting plate 2 is made of pure copper, copper alloy, pure aluminum or aluminum alloy.

[0038] In one embodiment, the surface of the connecting plate 2 is provided with an electroplating layer.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. If the present invention is modified or replaced by equivalents without departing from the spirit and scope of the present invention, they should be included in the scope of protection of the claims of the present invention.

Claims

1. A conductive aluminum busbar, characterized in that: It includes an aluminum bar body and a connecting plate, wherein at least one convex portion and a connecting portion are arranged on the connecting plate, a through hole is arranged on the aluminum bar body, the convex portion is placed in the through hole, and the surface of the aluminum bar body is in contact with the connecting plate; the convex portion is fixed to the aluminum bar body by welding.

2. A conductive aluminum busbar according to claim 1, characterized in that: The protrusion and the aluminum bar body are fixed by butt welding and penetration welding.

3. The conductive aluminum busbar according to claim 1, characterized in that: The end surface of the aluminum bar body is fixed to the aluminum bar body by fillet welding.

4. The conductive aluminum busbar according to claim 1, characterized in that: The protrusion is formed by punching.

5. The conductive aluminum busbar according to claim 1, characterized in that: The middle of the convex part is a through hole.

6. The conductive aluminum busbar according to claim 1, characterized in that: The connecting portion is a connecting hole and / or the convex portion.

7. The conductive aluminum busbar according to claim 1, characterized in that: The through hole is one of circular, square, oblong and elliptical.

8. The conductive aluminum busbar according to claim 1, characterized in that: The material of the aluminum bar body is pure aluminum or aluminum alloy.

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

10. The conductive aluminum busbar according to claim 1, characterized in that: The surface of the connecting plate is provided with an electroplating layer.

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