A battery bus welding fixture

By designing a battery busbar welding fixture, and utilizing structures such as a gantry frame, lifting bars, and rubber pressure strips, the problem of existing technologies being unable to adapt to the fixing of battery cells and busbars of different sizes has been solved, achieving stable clamping and efficient welding.

CN224526369UActive Publication Date: 2026-07-21HENAN JINGNENG ENERGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN JINGNENG ENERGY CO LTD
Filing Date
2025-08-22
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing battery busbar welding is mainly done manually, and common welding fixtures are not adjustable, making it impossible to adapt to the fixing requirements of battery cells and busbars of different sizes.

Method used

A battery busbar welding fixture was designed, including a battery fixing component and a busbar fixing component. The fixture utilizes a gantry frame, lifting bars, guide sliders, and adjusting handwheels to achieve stable clamping and fixing of the battery units and busbars. Rubber pressure strips and limit blocks prevent shaking and displacement.

Benefits of technology

It achieves stable clamping of battery cells and busbars of different sizes, avoiding shaking and displacement during the welding process, and improving the stability and efficiency of welding.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of battery busbar welding jigs, the utility model relates to battery assembly technical field, including battery fixed component, the battery fixed component top is fixedly installed with busbar fixed component, the battery fixed component includes base, the busbar fixed component includes gantry, the gantry bottom is fixedly connected with base top, the gantry inboard is equipped with lifting strip, the second guide slide groove is opened in the both sides of the gantry interior, the first guide sliding block is equipped in the both ends of the lifting strip, the second screw rod is fixedly installed in the lifting strip top, the second screw sleeve is rotatably connected in the gantry top, the second screw sleeve outside is fixedly installed with second adjusting hand wheel;The utility model, can be adjusted according to the different of the battery unit group to be welded, realize the firm clamping fixation of battery unit and busbar, facilitate subsequent welding, with higher practical value.
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Description

Technical Field

[0001] This utility model relates to the field of battery assembly technology, specifically a welding fixture for battery busbars. Background Technology

[0002] Battery assembly refers to the process of combining multiple battery cells into a complete battery system according to specific electrical and mechanical structures. Its core objective is to ensure the performance, safety, consistency, and lifespan of the battery system through a reasonable assembly process. The battery busbar is a key component in the battery system used to collect, distribute, and transmit electrical energy, and is typically made of highly conductive materials. It acts as a bridge within the battery pack, electrically connecting multiple battery cells or modules to ensure efficient and stable current flow.

[0003] Based on the above, the following problems were found: Current battery busbar welding is mainly carried out by manually holding the busbar, while common welding fixtures can only clamp and fix battery cells and busbars of fixed size, do not have adjustment functions, and are inconvenient to use.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a battery busbar welding fixture in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this invention is to provide a welding fixture for battery busbars to solve the problems mentioned in the background art.

[0006] A battery busbar welding fixture includes a battery fixing assembly, a busbar fixing assembly fixedly mounted on the top of the battery fixing assembly, the battery fixing assembly including a base, and the busbar fixing assembly including a gantry frame. The bottom of the gantry frame is fixedly connected to the top of the base. A lifting bar is provided on the inner side of the gantry frame. Second guide grooves are opened on both sides inside the gantry frame. First guide sliders are provided at both ends of the lifting bar. The first guide sliders are slidably connected to the second guide grooves. A second threaded rod is fixedly mounted on the top of the lifting bar. A second threaded sleeve is rotatably connected to the top of the gantry frame. The second threaded sleeve is threadedly connected to the second threaded rod. A second adjusting handwheel is fixedly mounted on the outer side of the second threaded sleeve. A rubber pressure strip is fixedly mounted on the bottom of the lifting bar.

[0007] By adopting the above technical solution, the battery fixing component facilitates the positioning and fixing of the battery unit group to be welded. The busbar fixing component facilitates the clamping and fixing of the busbar to the top of the battery unit group to be welded, facilitating welding. The gantry frame facilitates the placement of the busbar fixing component on top of the battery fixing component, facilitating the fixing of the busbar to the top of the battery unit group to be welded. The lifting bar facilitates the vertical movement of the lifting bar in conjunction with the base to clamp and fix the battery unit group to be welded and the busbar, facilitating subsequent welding. The first guide slider and the second guide... The chute design facilitates positioning and guidance for the rising and falling of the lifting bar, making its ascent and descent more stable. The second adjusting handwheel allows for easy rotation of the second threaded sleeve, which in turn controls the rising or falling of the second threaded rod, thus controlling the lifting bar's ascent and descent. The high-temperature resistant rubber strip ensures that the lifting bar is firmly pressed against the top of the busbar during descent, providing a secure clamping and fixing effect with the battery fixing assembly, preventing the busbar from shaking or shifting during welding.

[0008] Furthermore, sliding sleeves are slidably connected to the outer sides of both ends of the lifting bar, and limit blocks are fixedly installed at the bottom of both ends of the sliding sleeves.

[0009] By adopting the above technical solution and setting the limiting block, it is convenient to limit the two sides of the busbar, further improving the stability of clamping and fixing the busbar and preventing the busbar from shifting.

[0010] Furthermore, a third guide groove is provided on both sides of the lifting bar, and a second guide slider is fixedly installed on both sides inside the sliding sleeve. The second guide slider is slidably connected to the third guide groove, and a movable handle is fixedly installed at both ends of the outer side of the sliding sleeve.

[0011] By adopting the above technical solution, the sliding sleeve can be easily slid to a suitable position by setting the movable handle, so that the limiting block can limit the two sides of the busbar, which facilitates the welding of the busbar to the battery unit group to be welded.

[0012] Furthermore, a sliding groove is provided at the center of the top of the base, and a sliding plate is slidably connected inside the sliding groove.

[0013] By adopting the above technical solution, the sliding groove facilitates the provision of sliding space for the sliding plate, making it easier for the sliding plate to slide.

[0014] Furthermore, the bottom of the sliding plate is provided with a first guide groove at both ends, and a guide strip is fixedly installed at both ends inside the sliding groove. The first guide groove and the guide strip are slidably connected.

[0015] By adopting the above technical solution, the setting of the first guide groove facilitates the limiting and guiding of the sliding plate, making the sliding of the sliding plate more stable.

[0016] Furthermore, a first threaded rod is rotatably connected to the middle of the sliding groove, and a first adjusting handwheel is fixedly installed at one end of the first threaded rod. The first adjusting handwheel is located on the outside of the base.

[0017] By adopting the above technical solution, the first adjusting handwheel is located on the outside of the base, which facilitates the control of the rotation of the first threaded rod by rotating the first adjusting handwheel.

[0018] Furthermore, a first threaded sleeve is fixedly installed in the middle of the sliding plate, and the first threaded sleeve is threadedly connected to the first threaded rod.

[0019] By adopting the above technical solution, the setting of the first threaded sleeve facilitates the rotation control of the first threaded rod to slide the sliding plate inside the sliding groove, thereby realizing the adjustment of the position of the sliding plate.

[0020] Furthermore, a positioning groove is provided at the center of the top of the sliding plate, and a first magnetic block is fixedly installed at both ends inside the positioning groove.

[0021] By adopting the above technical solution and setting the positioning groove, it is convenient to position the fixed frame for installation, thus enabling quick positioning and installation of the positioning frame.

[0022] Furthermore, the top of the sliding plate is provided with a fixed frame, and a positioning block is fixedly installed at the bottom of the fixed frame. The positioning block is set inside the positioning groove, and a second magnetic block is fixedly installed at both ends of the bottom of the positioning block. The second magnetic block is magnetically connected to the first magnetic block.

[0023] By adopting the above technical solution, the fixed frame facilitates the fixation of the group of battery units to be welded, and the sliding plate can be used to adjust the position of the battery unit group to be welded. The busbar fixing assembly can fix the busbar on the top of the battery unit group to be welded, which is convenient for welding. The first magnetic block and the second magnetic block can quickly and easily attract and fix the positioning block inside the positioning groove. The sliding plate can move the fixed frame, and the fixed frame can be easily replaced according to the different settings of the battery unit group to be welded.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows: The battery fixing component facilitates the positioning and fixing of the battery unit group to be welded; the busbar fixing component facilitates the clamping and fixing of the busbar to the top of the battery unit group to be welded, facilitating welding; the gantry frame facilitates the placement of the busbar fixing component on top of the battery fixing component, facilitating the fixing of the busbar to the top of the battery unit group to be welded; the lifting bar facilitates its vertical movement in conjunction with the base to clamp and fix the battery unit group and busbar to be welded, facilitating subsequent welding; and the first guide slider and second guide groove facilitate the positioning and guidance of the lifting bar's upward and downward movement. To ensure more stable raising and lowering of the lifting bar, a second adjusting handwheel is provided. This handwheel allows for easy rotation of the second threaded sleeve, which in turn controls the raising or lowering of the second threaded rod, thus controlling the lifting bar's movement. A high-temperature resistant rubber strip is used to press the lifting bar firmly against the top of the busbar during descent, ensuring a stable clamping and fixation of the busbar with the battery fixing assembly. This prevents the busbar from shaking or shifting during welding. This invention can be adjusted according to the different battery units to be welded, achieving a stable clamping and fixation of the battery units and busbar, facilitating subsequent welding and possessing high practical value. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of a battery busbar welding fixture according to the present invention; Figure 2 This is an exploded view of the battery fixing assembly of this utility model; Figure 3 This is a three-dimensional structural diagram of the fixing frame of this utility model; Figure 4 This is an exploded view of the busbar fixing assembly of this utility model; Figure 5 This is a three-dimensional structural diagram of the sliding sleeve of this utility model.

[0026] In the diagram: 1. Battery fixing assembly; 11. Base; 12. Sliding groove; 13. Sliding plate; 14. Guide slide bar; 15. First guide slide groove; 16. First threaded sleeve; 17. First threaded rod; 18. First adjusting handwheel; 19. Positioning groove; 110. First magnetic block; 111. Fixing frame; 112. Positioning block; 113. Second magnetic block; 2. Busbar fixing assembly; 21. Gantry frame; 22. Lifting bar; 23. First guide slider; 24. Second guide slide groove; 25. Rubber strip; 26. Third guide slide groove; 27. Second threaded rod; 28. Second threaded sleeve; 29. ​​Second adjusting handwheel; 210. Sliding sleeve; 211. Second guide slider; 212. Moving handle; 213. Limiting block. Detailed Implementation

[0027] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-5 This utility model provides a technical solution: a battery busbar welding fixture, including a battery fixing component 1. The battery fixing component 1 facilitates the positioning and fixing of the battery unit group to be welded. A busbar fixing component 2 is fixedly installed on the top of the battery fixing component 1. The busbar fixing component 2 facilitates clamping and fixing the busbar to the top of the battery unit group to be welded, thus facilitating welding. The battery fixing component 1 includes a base 11, and the busbar fixing component 2 includes a gantry frame 21. The gantry frame 21... The busbar fixing assembly 2 is conveniently positioned on top of the battery fixing assembly 1, facilitating the fixing of the busbar to the top of the battery unit group to be welded. The bottom of the gantry frame 21 is fixedly connected to the top of the base 11. A lifting bar 22 is provided inside the gantry frame 21. The lifting bar 22 allows for vertical movement, working in conjunction with the base 11 to clamp and fix the battery unit group and busbar to be welded, facilitating subsequent welding. Second guide grooves 24 are provided on both sides inside the gantry frame 21, and first guide sliders 23 are provided at both ends of the lifting bar 22. Block 23 is slidably connected to the second guide groove 24. The arrangement of the first guide block 23 and the second guide groove 24 facilitates the positioning and guidance of the rising and falling of the lifting bar 22, making its rise and fall more stable. A second threaded rod 27 is fixedly installed on the top of the lifting bar 22. A second threaded sleeve 28 is rotatably connected to the top of the gantry frame 21. The second threaded sleeve 28 is threadedly connected to the second threaded rod 27. A second adjusting handwheel 29 is fixedly installed on the outside of the second threaded sleeve 28. The second adjusting handwheel 29 facilitates rotation. The second adjusting handwheel 29 is moved to control the rotation of the second threaded sleeve 28, thereby controlling the second threaded rod 27 to rise or fall, thus raising or lowering the lifting bar 22. A rubber pressure strip 25 is fixedly installed at the bottom of the lifting bar 22. The rubber pressure strip 25 is made of high-temperature resistant rubber, which allows the lifting bar 22 to be pressed tightly against the top of the busbar when it falls, thus cooperating with the battery fixing component 1 to firmly clamp and fix the busbar, preventing the busbar from shaking or shifting during the welding process.

[0029] Among them, the outer sides of both ends of the lifting bar 22 are slidably connected with sliding sleeves 210, and the bottom of both ends of the sliding sleeves 210 are fixedly installed with limit blocks 213. By setting the limit blocks 213, it is easy to limit the two sides of the busbar, further improving the stability of clamping and fixing the busbar and preventing the busbar from shifting.

[0030] The lifting bar 22 has a third guide groove 26 on both sides. The sliding sleeve 210 has a second guide slider 211 fixedly installed on both sides inside. The second guide slider 211 is slidably connected to the third guide groove 26. The sliding sleeve 210 has a movable handle 212 fixedly installed at both ends on the outside. The movable handle 212 makes it easy to slide the sliding sleeve 210 to a suitable position, so that the limiting block 213 limits the two sides of the busbar, which facilitates the welding of the busbar to the battery unit group to be welded.

[0031] The base 11 has a sliding groove 12 at the top center, and a sliding plate 13 is slidably connected inside the sliding groove 12. The sliding groove 12 facilitates the setting of sliding space for the sliding plate 13, making it easy for the sliding plate 13 to slide.

[0032] The sliding plate 13 has a first guide groove 15 at both ends of its bottom. Guide strips 14 are fixedly installed at both ends inside the sliding groove 12. The first guide groove 15 is slidably connected to the guide strips 14. The setting of the first guide groove 15 facilitates the limiting and guiding of the sliding of the sliding plate 13, making the sliding of the sliding plate 13 more stable.

[0033] The sliding groove 12 is rotatably connected to a first threaded rod 17. A first adjusting handwheel 18 is fixedly installed at one end of the first threaded rod 17. The first adjusting handwheel 18 is located on the outside of the base 11. The first adjusting handwheel 18 is located on the outside of the base 11, which facilitates the rotation of the first threaded rod 17 by rotating the first adjusting handwheel 18.

[0034] The sliding plate 13 has a first threaded sleeve 16 fixedly installed in the middle. The first threaded sleeve 16 is threadedly connected to the first threaded rod 17. The first threaded sleeve 16 facilitates the rotation of the first threaded rod 17 to control the sliding of the sliding plate 13 inside the sliding groove 12, thereby adjusting the position of the sliding plate 13.

[0035] The sliding plate 13 has a positioning groove 19 at the top center. The first magnetic blocks 110 are fixedly installed at both ends inside the positioning groove 19. The positioning groove 19 facilitates the positioning of the fixed frame 111 and enables quick positioning and installation of the positioning frame 111.

[0036] The sliding plate 13 has a fixed frame 111 at the top, and a positioning block 112 is fixedly installed at the bottom of the fixed frame 111. The positioning block 112 is set inside the positioning groove 19. The two ends of the bottom of the positioning block 112 are fixedly installed with second magnetic blocks 113. The second magnetic blocks 113 are magnetically connected to the first magnetic blocks 110. The fixed frame 111 facilitates the fixing of the group of battery units to be welded, and the sliding plate 13 can be slid to adjust the position of the battery unit group to be welded, so that the busbar fixing assembly 2 can fix the busbar on the top of the battery unit group to be welded, which is convenient for welding. The first magnetic block 110 and the second magnetic block 113 facilitate the quick and easy adsorption and fixing of the positioning block 112 inside the positioning groove 19, and the sliding plate 13 can drive the fixed frame 111 to move. It is also convenient to replace the fixed frame 111 according to the different settings of the battery unit group to be welded.

[0037] Specifically, the working principle of this battery busbar welding fixture is as follows: During use, the fixed frame 111 facilitates the fixing of the assembled battery units to be welded. The sliding plate 13 allows for easy adjustment of the position of the battery unit group to be welded, enabling the busbar fixing assembly 2 to fix the busbar on top of the battery unit group for easy welding. The first magnetic block 110 and the second magnetic block 113 facilitate the quick and easy attraction and fixing of the positioning block 112 inside the positioning groove 19. The sliding plate 13 facilitates the movement of the fixed frame 111, and allows for convenient adjustments to the fixed frame 111 according to different battery unit groups to be welded. The sliding groove 12 facilitates the sliding space of the sliding plate 13, allowing it to slide smoothly. The first guide groove 15 limits and guides the sliding of the sliding plate 13, making its sliding more stable. The first adjusting handwheel 18, located on the outside of the base 11, controls the rotation of the first threaded rod 17. The first threaded sleeve 16 allows the rotation of the first threaded rod 17 to control the sliding of the sliding plate 13 within the sliding groove 12, thus adjusting its position. The gantry 21 facilitates the mounting of the busbar fixing assembly 2. The battery fixing assembly 1 is positioned on top to facilitate fixing the busbar to the top of the battery unit group to be welded. The lifting bar 22 allows for easy vertical movement, working in conjunction with the base 11 to clamp and fix the battery unit group and busbar, facilitating subsequent welding. The first guide slider 23 and the second guide groove 24 facilitate positioning and guiding the lifting bar 22's ascent and descent, ensuring stable movement. The second adjusting handwheel 29 allows for easy rotation to control the rotation of the second threaded sleeve 28, thereby controlling the rise or fall of the second threaded rod 27. The lifting bar 22 rises or falls, and the rubber pressure strip 25 is set to make it easy for the lifting bar 22 to press the rubber pressure strip 25 tightly against the top of the busbar when it falls, so as to achieve a stable clamping and fixing of the busbar with the battery fixing component 1, and prevent the busbar from shaking or shifting during the welding process. The limiting block 213 is set to limit the two sides of the busbar, further improving the stability of clamping and fixing the busbar and preventing the busbar from shifting. The moving handle 212 is set to make it easy to slide the sliding sleeve 210 to a suitable position, so that the limiting block 213 limits the two sides of the busbar, which facilitates the welding of the busbar to the battery unit group to be welded.

[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A welding fixture for battery busbars, characterized in that, The device includes a battery fixing assembly (1), a busbar fixing assembly (2) fixedly installed on the top of the battery fixing assembly (1), a base (11) included in the battery fixing assembly (1), a gantry frame (21) included in the busbar fixing assembly (2), the bottom of the gantry frame (21) fixedly connected to the top of the base (11), a lifting bar (22) provided on the inner side of the gantry frame (21), a second guide groove (24) opened on both sides inside the gantry frame (21), a first guide slider (23) provided at both ends of the lifting bar (22), the first guide slider (23) slidably connected to the second guide groove (24), a second threaded rod (27) fixedly installed on the top of the lifting bar (22), a second threaded sleeve (28) rotatably connected to the top of the gantry frame (21), the second threaded sleeve (28) threadedly connected to the second threaded rod (27), a second adjusting handwheel (29) fixedly installed on the outer side of the second threaded sleeve (28), and a rubber pressure strip (25) fixedly installed on the bottom of the lifting bar (22).

2. The battery busbar welding fixture according to claim 1, characterized in that, The lifting bar (22) is slidably connected to the outer sides of both ends by a sliding sleeve (210), and a limit block (213) is fixedly installed at the bottom of both ends of the sliding sleeve (210).

3. The battery busbar welding fixture according to claim 2, characterized in that, The lifting bar (22) has a third guide groove (26) on both sides. The sliding sleeve (210) has a second guide slider (211) fixedly installed on both sides inside. The second guide slider (211) is slidably connected to the third guide groove (26). The sliding sleeve (210) has a movable handle (212) fixedly installed at both ends on the outer side.

4. The battery busbar welding fixture according to claim 1, characterized in that, The base (11) has a sliding groove (12) at the top center, and a sliding plate (13) is slidably connected inside the sliding groove (12).

5. A battery busbar welding fixture according to claim 4, characterized in that, The sliding plate (13) has a first guide groove (15) at both ends of its bottom. The guide strip (14) is fixedly installed at both ends inside the sliding groove (12). The first guide groove (15) and the guide strip (14) are slidably connected.

6. A battery busbar welding fixture according to claim 5, characterized in that, The sliding groove (12) is rotatably connected to a first threaded rod (17), and a first adjusting handwheel (18) is fixedly installed at one end of the first threaded rod (17). The first adjusting handwheel (18) is located on the outside of the base (11).

7. A battery busbar welding fixture according to claim 6, characterized in that, A first threaded sleeve (16) is fixedly installed in the middle of the sliding plate (13), and the first threaded sleeve (16) is threadedly connected to the first threaded rod (17).

8. A battery busbar welding fixture according to claim 7, characterized in that, The sliding plate (13) has a positioning groove (19) at the top center, and the first magnetic block (110) is fixedly installed at both ends inside the positioning groove (19).

9. A battery busbar welding fixture according to claim 8, characterized in that, The sliding plate (13) is provided with a fixed frame (111) at the top, and a positioning block (112) is fixedly installed at the bottom of the fixed frame (111). The positioning block (112) is set inside the positioning groove (19). A second magnetic block (113) is fixedly installed at both ends of the bottom of the positioning block (112). The second magnetic block (113) is magnetically connected to the first magnetic block (110).