Auxiliary tool for welding lithium battery pole

By designing auxiliary tooling for lithium battery terminal welding, and utilizing the precise positioning and limiting structure of the mounting and positioning components, the offset problem during battery terminal welding was solved, thereby improving welding quality and efficiency and reducing the defect rate.

CN224209243UActive Publication Date: 2026-05-08深圳市卓毅科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
深圳市卓毅科技有限公司
Filing Date
2025-06-09
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The lack of effective auxiliary tooling during lithium battery terminal welding leads to inaccurate positioning of the battery terminals, making them prone to displacement, which affects welding quality and electrical connection performance, and increases the defect rate.

Method used

An auxiliary tooling for welding lithium battery terminals was designed, including an installation component and a positioning component. Through the cooperation of a snap-fit ​​groove, a limiting groove and a sliding groove, the battery terminals are accurately positioned and limited. Combined with the structure of a reset spring and a limiting plate, the battery terminals are ensured not to shift during welding.

Benefits of technology

It improves the welding quality of battery terminals and the reliability of electrical connections, reduces the defect rate, and enhances welding efficiency and ease of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an auxiliary tool for welding a lithium battery pole, which belongs to the field of lithium batteries and comprises a lithium battery body. The mounting assembly is detachably arranged on the upper surface of the lithium battery body; the positioning assembly is arranged on the front surface of the mounting assembly and comprises a mounting plate which is arranged on the front surface of the mounting assembly; the fixing sleeve is arranged on the upper surface of the mounting plate; the U-shaped rod is arranged on the inner side of the fixing sleeve in a sliding manner; and the positioning sleeve is arranged on one end surface, far away from the mounting plate, of the U-shaped rod. According to the auxiliary tool for welding the lithium battery pole, the positioning assembly can be arranged on the upper surface of the lithium battery body through the arranged mounting assembly, so that the positioning assembly can accurately position the battery pole, a certain limiting effect is provided, the battery pole is effectively prevented from deviating during welding, positioning is accurate, and the welding efficiency is improved. Therefore, the welding quality of the battery pole is remarkably improved, and the reliability and stability of electrical connection of the lithium battery are guaranteed.
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Description

Technical Field

[0001] This utility model belongs to the field of lithium batteries, specifically relating to an auxiliary tooling for welding lithium battery terminals. Background Technology

[0002] A lithium battery, also known as a lithium-ion battery, is a type of rechargeable battery that primarily relies on the movement of lithium ions between the positive and negative electrodes to function.

[0003] In the lithium battery manufacturing process, the welding quality of the battery terminals has a crucial impact on the performance and safety of the lithium battery. Currently, there is a lack of effective auxiliary tooling for precise positioning and reliable limiting of the battery terminals during lithium battery terminal welding operations. During welding, workers need to align the battery terminals with the electrode plate at the welding point. However, manual placement of the battery terminals can easily lead to misalignment, which not only reduces the welding quality and affects the electrical connection performance of the lithium battery, but also increases the defect rate in the production process. Therefore, this application proposes an auxiliary tooling for lithium battery terminal welding to solve the above-mentioned technical problems. Utility Model Content

[0004] In view of one or more of the above-mentioned defects or improvement needs of the prior art, this utility model provides an auxiliary tooling for welding lithium battery terminals, which has the advantage of improving the welding quality of battery terminals.

[0005] To achieve the above objectives, this utility model provides an auxiliary tooling for welding lithium battery terminals, including a lithium battery body;

[0006] The mounting components are detachably mounted on the upper surface of the lithium battery body.

[0007] A positioning component disposed on the front surface of the mounting assembly includes a mounting plate disposed on the front surface of the mounting assembly; a fixing sleeve disposed on the upper surface of the mounting plate; a U-shaped rod slidably disposed on the inner side of the fixing sleeve; and a positioning sleeve disposed on the end face of the U-shaped rod away from the mounting plate.

[0008] Furthermore, the mounting assembly includes a mounting frame detachably disposed on the upper surface of the lithium battery body, and the mounting plate is disposed on the front surface of the mounting frame;

[0009] A snap-fit ​​groove is formed on the lower surface of the mounting frame;

[0010] Two limiting grooves are symmetrically opened on the upper surface of the mounting frame;

[0011] Two sliding grooves are respectively formed on the inner side of the two limiting grooves;

[0012] Two material feeding slots are symmetrically arranged on the upper surface of the mounting frame.

[0013] Furthermore, the upper end of the lithium battery body is located inside the snap-fit ​​groove, and the upper end of the lithium battery body and the inner side of the snap-fit ​​groove are in an interference fit.

[0014] Furthermore, the two material feeding troughs are respectively connected to the two sliding troughs;

[0015] The space formed between the sliding groove and the limiting groove is compatible with the battery terminals.

[0016] Furthermore, the positioning component also includes a groove formed on the front surface of the mounting plate;

[0017] A barrier plate is located on the outside of the U-shaped bar;

[0018] A return spring is sleeved on the outside of the fixed sleeve, and the upper and lower ends of the return spring are respectively located on the lower surface of the barrier plate and the upper surface of the mounting plate.

[0019] A connecting rod is provided on the lower surface of the barrier plate, and the connecting rod is located inside the groove;

[0020] A limiting plate is rotatably disposed on the lower surface of the connecting rod.

[0021] Furthermore, the inner side of the positioning sleeve is adapted to the upper end of the battery terminal post.

[0022] The upper surface of the limiting plate is in contact with the lower surface of the mounting plate;

[0023] The longitudinal dimension of the limiting plate is smaller than the transverse dimension of the groove.

[0024] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:

[0025] This utility model discloses an auxiliary tooling for welding lithium battery terminals. Through its installation components, a positioning component is placed on the upper surface of the lithium battery body. This allows the positioning component to accurately position the battery terminals and provide a certain limiting effect, effectively preventing the battery terminals from shifting during welding. The precise positioning significantly improves the welding quality of the battery terminals and ensures the reliability and stability of the lithium battery's electrical connection. At the same time, the installation components themselves can store multiple battery terminals, allowing workers to quickly retrieve them from the material hopper, making the welding operation more convenient and greatly improving the welding efficiency of the battery terminals. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall three-dimensional structure in a preferred embodiment of the present invention;

[0027] Figure 2 This is a three-dimensional view of the overall mounting components from below in a preferred embodiment of the present invention;

[0028] Figure 3 This is a top-view perspective view of the overall three-dimensional structure of the mounting components in a preferred embodiment of the present invention;

[0029] Figure 4 This is a preferred embodiment of the present utility model. Figure 3 Enlarged 3D structural diagram at point A in the middle;

[0030] Figure 5 This is a schematic diagram of the overall three-dimensional structure of the positioning component in a preferred embodiment of the present invention.

[0031] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. Battery body; 2. Mounting assembly; 21. Mounting frame; 22. Snap-fit ​​groove; 23. Limiting groove; 24. Sliding groove; 25. Material feeding groove; 3. Positioning assembly; 31. Mounting plate; 32. Groove; 33. Fixing sleeve; 34. U-shaped rod; 35. Positioning sleeve; 36. Barrier plate; 37. Return spring; 38. Connecting rod; 39. Limiting plate. Detailed Implementation

[0032] 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.

[0033] Please see Figure 1-5 This utility model provides an auxiliary tooling for welding lithium battery terminals, including a lithium battery body 1;

[0034] Mounting component 2 is detachably mounted on the upper surface of the lithium battery body 1;

[0035] The positioning component 3, located on the front surface of the mounting component 2, includes a mounting plate 31 on the front surface of the mounting component 2; a fixing sleeve 33 on the upper surface of the mounting plate 31; a U-shaped rod 34 slidably located inside the fixing sleeve 33; and a positioning sleeve 35 on the end face of the U-shaped rod 34 away from the mounting plate 31.

[0036] In this embodiment, an auxiliary tooling for welding lithium battery terminals is provided. By installing component 2, positioning component 3 can be placed on the upper surface of lithium battery body 1, so that positioning component 3 can position the battery terminals and limit the battery terminals to a certain extent, thereby preventing the battery terminals from shifting during welding and thus improving the welding quality of the battery terminals.

[0037] Furthermore, such as Figure 2-4 As shown, the mounting component 2 in the preferred embodiment of this utility model includes a mounting frame 21, which is detachably disposed on the upper surface of the lithium battery body 1, and a mounting plate 31 disposed on the front surface of the mounting frame 21; a snap-fit ​​groove 22, which is opened on the lower surface of the mounting frame 21; two limiting grooves 23, which are symmetrically opened on the upper surface of the mounting frame 21; two sliding grooves 24, which are respectively opened on the inner side of the two limiting grooves 23; and two material picking grooves 25, which are symmetrically opened on the upper surface of the mounting frame 21.

[0038] Furthermore, the upper end of the lithium battery body 1 is located inside the slot 22, and the upper end of the lithium battery body 1 and the inner side of the slot 22 are in an interference fit.

[0039] Furthermore, the two material feeding slots 25 are respectively connected to the two sliding slots 24; the space formed between the sliding slots 24 and the limiting slots 23 is compatible with the battery terminals.

[0040] This embodiment provides several preferred embodiments of the mounting component 2. By placing the mounting frame 21 on the upper surface of the lithium battery body 1 and allowing the lithium battery body 1 to enter the inner side of the snap-fit ​​groove 22, the mounting frame 21 can be stably set at the upper end of the lithium battery body 1. This allows the positioning component 3 to accurately position and limit the battery terminals. At the same time, multiple battery terminals can be placed from the material picking groove 25 into the inner side of the limiting groove 23 and the sliding groove 24. This allows multiple battery terminals to be stored between the limiting groove 23 and the sliding groove 24. When the operator welds the battery terminals to the electrode plate of the lithium battery body 1, the operator can quickly retrieve the battery terminals from the inner side of the limiting groove 23 and the sliding groove 24. This makes the welding of battery terminals more convenient and improves the welding efficiency of the battery terminals.

[0041] Furthermore, such as Figure 5As shown, the positioning component 3 in the preferred embodiment of this utility model further includes a groove 32 formed on the front surface of the mounting plate 31; a barrier plate 36 disposed on the outside of the U-shaped rod 34; a return spring 37 disposed on the outside of the fixing sleeve 33, with the upper and lower ends of the return spring 37 respectively disposed on the lower surface of the barrier plate 36 and the upper surface of the mounting plate 31; a connecting rod 38 disposed on the lower surface of the barrier plate 36, with the connecting rod 38 located inside the groove 32; and a limiting plate 39 rotatably disposed on the lower surface of the connecting rod 38.

[0042] More specifically, when the upper end of the lithium battery body 1 is located in the slot 22, the positioning sleeve 35 is located above the welding position of the battery terminal of the lithium battery body 1.

[0043] Furthermore, the inner side of the positioning sleeve 35 is adapted to the upper end of the battery terminal; the upper surface of the limiting plate 39 is in contact with the lower surface of the mounting plate 31; the U-shaped rod 34 can only slide within the fixed sleeve 33 and cannot rotate within the fixed sleeve 33; the longitudinal dimension of the limiting plate 39 is smaller than the transverse dimension of the groove 32, so rotating the limiting plate 39 so that the short side of the limiting plate 39 is located within the groove 32 can move the limiting plate 39 upward within the groove 32.

[0044] More specifically, when the upper surface of the limiting plate 39 contacts the lower surface of the mounting plate 31, the return spring 37 is in a compressed state, and after the return spring 37 elastically resets, the lower end of the U-shaped rod 34 is still located inside the fixing sleeve 33.

[0045] In this embodiment, several preferred embodiments of the positioning component 3 are provided. By rotating the limiting plate 39, the limiting plate 39 is positioned within the groove 32. Under the action of the return spring 37, both the limiting plate 39 and the U-shaped rod 34 will move upward, thus placing the battery terminal inside the positioning sleeve 35. Then, the limiting plate 39 is pulled and moved below the groove 32, causing the limiting plate 39 to drive the U-shaped rod 34 downward via the connecting rod 38 and the blocking plate 36, so that the lower end of the battery terminal inside the positioning sleeve 35 is aligned with the lithium battery. The electrode plate of the battery body 1 contacts the electrode plate and then rotates, causing the limiting plate 39 to contact the lower surface of the mounting plate 31. This allows the battery terminal to be quickly positioned at the welding position of the lithium battery body 1, thereby improving the welding quality of the battery terminal. When the upper surface of the limiting plate 39 contacts the lower surface of the mounting plate 31, the return spring 37 is in a compressed state, allowing the positioning sleeve 35 to apply a certain squeezing force to the battery terminal, thereby preventing the battery terminal from moving during welding and improving the welding accuracy of the battery terminal.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary tooling for welding lithium battery terminals, characterized in that, Including the lithium battery body (1); Mounting component (2) is detachably disposed on the upper surface of the lithium battery body (1); The positioning component (3) is located on the front surface of the mounting component (2), and includes a mounting plate (31) located on the front surface of the mounting component (2); a fixing sleeve (33) located on the upper surface of the mounting plate (31); a U-shaped rod (34) slidably located on the inner side of the fixing sleeve (33); and a positioning sleeve (35) located on the end face of the U-shaped rod (34) away from the mounting plate (31).

2. The auxiliary tooling for welding lithium battery terminals according to claim 1, characterized in that, The mounting assembly (2) includes a mounting frame (21) detachably disposed on the upper surface of the lithium battery body (1), and the mounting plate (31) is disposed on the front surface of the mounting frame (21). A snap-fit ​​groove (22) is provided on the lower surface of the mounting frame (21); Two limiting grooves (23) are symmetrically opened on the upper surface of the mounting frame (21); Two sliding grooves (24) are respectively opened on the inner side of the two limiting grooves (23); Two material feeding slots (25) are symmetrically opened on the upper surface of the mounting frame (21).

3. The auxiliary tooling for welding lithium battery terminals according to claim 2, characterized in that, The upper end of the lithium battery body (1) is located inside the snap-fit ​​groove (22), and the upper end of the lithium battery body (1) and the inner side of the snap-fit ​​groove (22) are in an interference fit.

4. The auxiliary tooling for welding lithium battery terminals according to claim 2, characterized in that, The two material feeding troughs (25) are respectively connected to the two sliding grooves (24); The space formed between the sliding groove (24) and the limiting groove (23) is compatible with the battery terminals.

5. The auxiliary tooling for welding lithium battery terminals according to claim 2, characterized in that, The positioning component (3) further includes a groove (32) formed on the front surface of the mounting plate (31); A barrier plate (36) is provided on the outside of the U-shaped bar (34); A reset spring (37) is sleeved on the outside of the fixed sleeve (33), and the upper and lower ends of the reset spring (37) are respectively located on the lower surface of the barrier plate (36) and the upper surface of the mounting plate (31). A connecting rod (38) is provided on the lower surface of the barrier plate (36), and the connecting rod (38) is located inside the groove (32); A limiting plate (39) is rotatably disposed on the lower surface of the connecting rod (38).

6. The auxiliary tooling for welding lithium battery terminals according to claim 5, characterized in that, The inner side of the positioning sleeve (35) is adapted to the upper end of the battery terminal post; The upper surface of the limiting plate (39) is in contact with the lower surface of the mounting plate (31); The longitudinal dimension of the limiting plate (39) is smaller than the transverse dimension of the groove (32).