A copper bar structure

Abstract

The utility model relates to copper bar technical field, concretely is a copper bar structure, the utility model discloses the center copper bar, the center copper bar both ends are equipped with extension end one and extension end two respectively, and extension end one and extension end two are located center copper bar same side, and extension end one and extension end two end part are equipped with connecting plate no.

Description

Technical Field

[0001] This utility model relates to the field of copper busbars, specifically a copper busbar structure. Background Technology

[0002] Copper busbars are widely used as key high-current conductive connection components in fields such as power electronic equipment, new energy vehicles, and energy storage systems. With the continuous increase in equipment integration, higher demands are being placed on the compactness, reliability, and assembly efficiency of internal electrical connections.

[0003] Traditional copper busbar structures are usually assembled from multiple independent copper busbars by welding, screwing, etc., resulting in many connection points, low reliability, complicated production process, low assembly efficiency, and the mechanical strength of the connection points is often lower than that of the material itself, making them prone to loosening under vibration.

[0004] Therefore, a copper busbar structure is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a copper busbar structure to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A copper busbar structure includes a central copper busbar, with an extension end one and an extension end two at both ends of the central copper busbar. The extension end one and the extension end two are located on the same side of the central copper busbar. The ends of the extension end one and the extension end two are respectively provided with a connecting plate one and a connecting plate two. The central copper busbar, the extension end one, the extension end two, the connecting plate one and the connecting plate two are integrally formed. Terminal assemblies are welded and installed on both the central copper busbar and the extension end one.

[0008] Preferably, the first extension end is shaped like an "L" and extends upward toward the copper busbar, while the second extension end is shaped like a "U" and extends downward toward the copper busbar from the recessed portion.

[0009] Preferably, the central copper busbar has two bent ends, which are used to make the middle of the central copper busbar bulge upward.

[0010] Preferably, both the first connecting plate and the second connecting plate have through holes, and a protrusion is provided on one side of the central copper busbar.

[0011] Preferably, the terminal assembly includes connecting pieces, and multiple sets of connecting pieces are all L-shaped. One end of the connecting piece is fixedly connected to a welding end, and multiple sets of welding ends are respectively welded to the central copper busbar and the extension end.

[0012] Preferably, welding holes are provided on both the central copper busbar and the extension end, and welding columns are fixedly connected to multiple sets of welding ends. The welding columns are inserted into the welding holes, and the side walls of the welding columns are welded to the inner walls of the welding holes.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model integrates the central copper busbar, the extension end, and the connecting plate into one piece, resulting in high overall mechanical strength. It can better withstand external forces and vibrations, and the production process is simple. It fundamentally eliminates the mechanical connection points between multiple parts, significantly reducing contact resistance and the risk of potential connection failure. The current path is smoother, improving current carrying capacity and long-term operational stability.

[0015] 2. This utility model designs the first extension end as an "L" shape extending upwards and the second extension end as a "U" shape extending downwards, combined with the upward bending of the middle of the central copper busbar, forming a three-dimensional layout. This spatial structure allows the copper busbar to cleverly avoid other components inside the equipment, greatly improving space utilization efficiency, and is very suitable for highly integrated compact equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the front structure of the copper busbar of this utility model;

[0018] Figure 2 This is a schematic diagram of the back structure of the copper busbar of this utility model;

[0019] Figure 3 This is a schematic diagram of the copper busbar structure of this utility model without the terminal assembly installed;

[0020] Figure 4 This is a schematic diagram of the terminal assembly structure of this utility model;

[0021] The attached figures are labeled as follows:

[0022] 1. Center copper busbar; 2. Extension end one; 3. Extension end two; 4. Bent end; 5. Protrusion; 6. Connecting plate one; 7. Connecting plate two; 8. Connecting hole; 9. Welding hole; 10. Welding end; 11. Welding column; 12. Connecting piece. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] A copper busbar structure, such as Figures 1-4 As shown, the structure includes a central copper busbar 1, with extension ends 2 and 3 at both ends. Extension ends 2 and 3 are located on the same side of the central copper busbar 1. Connection plates 6 and 7 are respectively provided at the ends of extension ends 2 and 3. The central copper busbar 1, extension ends 2 and 3, connection plates 6 and 7 are integrally formed and manufactured by sheet metal processes such as punching and bending of a high conductivity copper plate (brass). Terminal assemblies are welded and installed on both the central copper busbar 1 and extension ends 2. Except for the terminal assemblies, all structures of this copper busbar structure are integral parts.

[0025] The shape of extension end 2 is set as "L" and the end extends upward towards the copper busbar. Specifically, it first extends a distance towards the center copper busbar 1 and then bends upward so that its end is above the main body of the copper busbar. The shape of extension end 3 is set as "U" and the concave part extends downward towards the copper busbar. The middle part of extension end 3 is lower than the main body of the copper busbar, and the end is higher than the main body of the copper busbar. The shapes of extension end 2 and extension end 3 allow the copper busbar to adapt to the compact space inside the equipment and avoid the components inside the equipment.

[0026] The central copper busbar 1 has two bent ends 4, which are used to make the middle of the central copper busbar 1 protrude upward, which not only increases the structural strength of the copper busbar, but also leaves space for installation or heat dissipation below it.

[0027] Both the connecting plate 6 and the connecting plate 7 have through holes 8 for fixing to external equipment (such as battery terminals, circuit breaker terminals, etc.) by bolts. The center copper busbar 1 has a protrusion 5 on one side, which can be used for positioning, error prevention or auxiliary support.

[0028] The terminal assembly includes connecting pieces 12, and multiple sets of connecting pieces 12 are all L-shaped. One end of the connecting piece 12 is fixedly connected to a welding end 10, which is preferably rectangular. Multiple sets of welding ends 10 are respectively welded to the central copper busbar 1 and the extension end 2. In this embodiment, three sets of terminal assemblies are provided on the central copper busbar 1 and one set of terminal assemblies is provided on the extension end 2. The number of terminal assemblies can be changed according to the actual use.

[0029] Welding holes 9 are provided on the central copper busbar 1 and the extension end 2. Welding posts 11 are fixedly connected to multiple sets of welding ends 10. Welding posts 11 are inserted into welding holes 9. The side wall of welding post 11 is welded to the inner wall of welding hole 9. Welding holes 9 are reserved on the central copper busbar 1 and the extension end 2. The diameter of welding post 11 matches the diameter of welding hole 9. During assembly, the welding posts 11 of the terminal assembly are aligned and inserted into the corresponding welding holes 9. Then, resistance welding or laser welding is used to circumferentially weld the side wall of welding post 11 to the inner wall of welding hole 9. This plug-in welding method forms a three-dimensional weld, and the connection strength is much higher than that of traditional surface mount welding.

[0030] The working principle of the copper busbar structure provided by this utility model is as follows:

[0031] By integrally molding the central copper busbar 1, the extension end, and the connecting plate 6, the overall mechanical strength is high, which can better withstand external forces and vibrations. The production process is simple, fundamentally eliminating mechanical connection points between multiple parts, significantly reducing contact resistance and potential connection failure risks, making the current path smoother, improving current carrying capacity and long-term operational stability. The upward bend in the middle of the copper busbar, and the similar bends of the extension end 2 and extension end 3, form a three-dimensional layout. This spatial structure allows the copper busbar to cleverly avoid other components inside the equipment, greatly improving space utilization efficiency, and is very suitable for highly integrated compact equipment.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A copper busbar structure, comprising a central copper busbar (1), characterized in that, The central copper busbar (1) has an extension end one (2) and an extension end two (3) at both ends. The extension end one (2) and the extension end two (3) are located on the same side of the central copper busbar (1). The ends of the extension end one (2) and the extension end two (3) are respectively provided with a connecting plate one (6) and a connecting plate two (7). The central copper busbar (1), the extension end one (2), the extension end two (3), the connecting plate one (6) and the connecting plate two (7) are integrally formed. Terminal assemblies are welded and installed on both the central copper busbar (1) and the extension end one (2).

2. The copper busbar structure according to claim 1, characterized in that, The shape of the first extension end (2) is set to "L" and the end extends upward towards the copper busbar, while the shape of the second extension end (3) is set to "U" and the recess extends downward towards the copper busbar.

3. The copper busbar structure according to claim 1, characterized in that, The central copper busbar (1) has two bent ends (4) for making the middle part of the central copper busbar (1) protrude upward.

4. The copper busbar structure according to claim 1, characterized in that, Both the first connecting plate (6) and the second connecting plate (7) have through holes (8), and the center copper busbar (1) has a protrusion (5) on one side.

5. A copper busbar structure according to claim 1, characterized in that, The terminal assembly includes a connecting piece (12), and multiple sets of connecting pieces (12) are all L-shaped. One end of the connecting piece (12) is fixed with a welding end (10), and multiple sets of welding ends (10) are welded to the central copper busbar (1) and the extension end (2) respectively.

6. A copper busbar structure according to claim 5, characterized in that, Welding holes (9) are provided on the central copper busbar (1) and the extension end (2). Welding columns (11) are fixedly connected to multiple sets of welding ends (10). The welding columns (11) are inserted into the welding holes (9), and the side wall of the welding column (11) is welded to the inner wall of the welding hole (9).

Images