Welding device tool

By designing welding equipment and tooling, and adopting modular structures and high-strength insulation materials, the problem of poor cell welding quality was solved, the safety and stability of the energy storage system were improved, and production efficiency and equipment sustainability were enhanced.

CN223863155UActive Publication Date: 2026-02-03NANTONG LE CHUANGXIN ENERGY CO LTD
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Patent Information

Application Number
CN202422033096.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-21
Publication Date
2026-02-03
Estimated Expiration
2034-08-21

AI Technical Summary

Technical Problem

Poor cell welding quality may lead to safety and stability issues in energy storage systems, affecting the robustness of cell connections and energy transmission.

Method used

Design a welding device tooling that includes a lower pressure plate assembly, welding studs, positioning plate assembly and lower support plate assembly. The tooling adopts a modular design and a movable positioning structure to ensure accurate positioning of the positive and negative contact surfaces of the battery cell. Phenolic plastic and brass materials are used to improve insulation performance and stability.

Benefits of technology

It improved cell welding efficiency by 40%, reduced labor costs, ensured post-weld stability and safety, reduced maintenance time and costs, and enhanced the sustainable use of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The welding device tool comprises a lower pressing plate assembly, a welding stud, a positioning plate assembly, a lower supporting plate assembly and a square battery cell, the lower pressing plate assembly comprises a pressing plate body, a plurality of sets of movable small plates are arranged at the upper end of the pressing plate body in a sliding mode, and the positioning plate assembly comprises a positioning plate body. Small positioning plates are fixedly and uniformly arranged at the upper end of the positioning plate main body, the lower supporting plate assembly comprises a supporting plate main body, and a plurality of groups of placing grooves for placing square battery cells are formed in the upper end of the supporting plate main body. The stud welding positioning and pressing device is an efficient, stable and safe design mode, mainly solves the problems of positioning and pressing welding in the stud welding process, has wide application prospects in the energy storage industry, and can ensure better performance and effect of a welded battery cell in system operation and application.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of new energy, more particularly to a welding device tool. BACKGROUND

[0002] Currently in the field of energy storage, cell welding is a very important link in the energy storage system, which directly affects the safety and stability of the system. A good cell welding can ensure the efficient operation of the energy storage system, and also can reduce potential safety risks.

[0003] First, the quality of cell welding is directly related to the safety of the energy storage system. In the energy storage system, the cell is a key component for storing energy, and the connection quality of the cell affects the stability and safety of the entire system. If the quality of cell welding is not high, it may cause the cell connection to be not firm, the connection to heat, and the circuit to be broken, which may lead to serious safety accidents. Therefore, to ensure the safety of the energy storage system, it is necessary to ensure the quality of cell welding.

[0004] The quality of cell welding also directly affects the running stability of the energy storage system. High-quality cell welding can ensure the stable connection between cells, thereby ensuring the normal transmission and storage of energy. On the contrary, if the quality of cell welding is poor, it may cause poor contact between cells, increased resistance, and even local overheating and thermal runaway, thereby affecting the stable operation of the entire system. SUMMARY

[0005] The utility model aims at providing a kind of welding device tool to solve the problems related in the above background.

[0006] The technical scheme adopted by the utility model to solve its technical problems is:

[0007] A kind of welding device tool, including lower pressing plate subassembly, welding stud, positioning plate subassembly, lower supporting plate subassembly and block cell, the lower pressing plate subassembly includes pressing plate main body, and multiple groups of movable small plates are slidably arranged on the upper end of pressing plate main body, the positioning plate subassembly includes positioning plate main body, and positioning small plate is fixedly arranged on the upper end of positioning plate main body, the lower supporting plate subassembly includes supporting plate main body, and multiple groups of placement grooves for placing block cells are provided on the upper end of supporting plate main body.

[0008] Preferably, the outer side of the pressing plate main body is fixedly provided with a sliding guide column one, the both sides of the positioning plate main body are fixedly provided with a sliding guide column two, and the upper end of the supporting plate main body is further fixedly provided with a guide column, and the guide column movably penetrates the sliding guide column one and the sliding guide column two.

[0009] Preferably, a hook and latch are fixedly provided on the outer side of the pressure plate body, and hook and latch components are fixedly connected to both sides of the tray body, wherein the hook and latch components engage with the hook and latch.

[0010] Preferably, the welding stud is located at the bottom of the pressure plate body and moves through the movable small plate at the upper end of the pressure plate body. The upper end of the pressure plate body is also provided with a locking nut that is threadedly connected to the upper end of the welding stud.

[0011] Preferably, a compression spring is also provided at the bottom of the pressure plate body, a copper sleeve is inserted through the center of the compression spring, and a stroke stud is movably connected to the bottom of the copper sleeve.

[0012] Preferably, the square battery cells, positioning plates, and movable plates in the placement slot are arranged in a one-to-one correspondence.

[0013] Compared with the prior art, the advantages or beneficial effects of this utility model are as follows:

[0014] 1. Improved production efficiency: This mechanism adopts simultaneous welding of multiple single cells or welding of the entire module, which improves efficiency by 40% compared to traditional single cell welding, greatly improving production efficiency and saving labor costs.

[0015] 2. Safety: The main body is made of phenolic plastic, ensuring sufficient strength and good insulation performance for the tooling. The welding sleeve is made of brass, ensuring stability during the welding discharge process.

[0016] 3. Ease of operation: The modular design of this device makes maintenance more convenient, reduces maintenance costs and time, and improves the sustainable use of the equipment.

[0017] 4. Stability: The single-set double-rod clamping structure with movable positioning ensures accurate positioning of the stud and the positive and negative contact surfaces of the battery cell after welding. After clamping, the two surfaces fit tightly together, ensuring the product's current carrying capacity. Attached Figure Description

[0018] Figure 1 This is an exploded view of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the installation structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of this utility model in its unclamped state.

[0021] Figure 4 This is a cross-sectional view of the present invention in the clamping state.

[0022] Figure 5 This is a three-view structural diagram of the present invention.

[0023] The following are the labels in the diagram: 1-Lower pressure plate assembly, 101-Pressure plate body, 102-Modible small plate, 103-Sliding guide post one, 104-Snap hook, 105-Locking nut, 106-Compression spring, 107-Copper sleeve, 108-Stroke stud, 2-Welding stud, 3-Positioning plate assembly, 301-Positioning plate body, 302-Positioning small plate, 303-Sliding guide post two, 4-Lower support plate assembly, 401-Support plate body, 402-Snap assembly, 403-Guide post, 5-Square battery cell. Detailed Implementation

[0024] In the following description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please see Figures 1-5 A welding device fixture includes a lower pressure plate assembly 1, a welding stud 2, a positioning plate assembly 3, a lower support plate assembly 4, and a square battery cell 5. The lower pressure plate assembly 1 includes a pressure plate body 101, with multiple sets of movable small plates 102 slidably arranged on the upper end of the pressure plate body 101. The positioning plate assembly 3 includes a positioning plate body 301, with positioning small plates 302 fixedly and evenly arranged on the upper end of the positioning plate body 301. The lower support plate assembly 4 includes a support plate body 401, with multiple sets of placement slots for placing the square battery cells 5 provided on the upper end of the support plate body 401. A sliding guide post 103 is fixedly arranged on the outer side of the pressure plate body 101, and sliding guide posts 303 are fixedly arranged on both sides of the positioning plate body 301. A guide post 403 is also fixedly arranged on the upper end of the support plate body 401, and the guide post 403 slidably penetrates through the plate. Guide post 103, sliding guide post 2 303, and a latch hook 104 are fixedly installed on the outer side of the pressure plate body 101. The two sides of the support plate body 401 are fixedly connected to the latch assembly 402. The latch assembly 402 and the latch hook 104 are engaged. The welding stud 2 is located at the bottom of the pressure plate body 101 and moves through the movable small plate 102 at the upper end of the pressure plate body 101. The upper end of the pressure plate body 101 is also provided with a locking nut 105, which is threadedly connected to the upper end of the welding stud 2. The bottom of the pressure plate body 101 is also provided with a compression spring 106. A copper sleeve 107 is inserted through the center of the compression spring 106. The bottom of the copper sleeve 107 is movably connected with a stroke stud 108. The square battery cell 5, the positioning small plate 302, and the movable small plate 102 in the slot are arranged in a one-to-one correspondence.

[0026] Based on the above structural design, and referring to Figure 2The assembly process of this utility model involves the following steps: placing the lower support plate assembly 4 on the operating table, placing the square battery cell 5 in its slot, adjusting the positioning plate 302 to fit against the upper part of the square battery cell 5 using the guide post 403 to place the positioning plate assembly 3, inserting the welding stud 2 into the hole 302 of the positioning plate, and adjusting the movable plate 102 using the guide post 403 to allow the copper sleeve 107 to engage with the positioning plate 302. Figure 3 Subsequently, the connection between the latch hook 104 and the latch assembly 402 drives the compression spring 106 to push the copper sleeve 107 downwards, as shown. Figure 4 As shown, this completes the pre-welding fixture assembly process.

[0027] 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 preferred examples and are not intended to limit the 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A welding device fixture, comprising a lower pressure plate assembly (1), a welding stud (2), a positioning plate assembly (3), a lower support plate assembly (4), and a square battery cell (5), characterized in that: The lower pressure plate assembly (1) includes a pressure plate body (101), and multiple sets of movable small plates (102) are slidably arranged on the upper end of the pressure plate body (101). The positioning plate assembly (3) includes a positioning plate body (301), and positioning small plates (302) are fixedly and evenly arranged on the upper end of the positioning plate body (301). The lower support plate assembly (4) includes a support plate body (401), and multiple sets of square battery cells (5) are placed in placement slots on the upper end of the support plate body (401).

2. The welding apparatus tooling according to claim 1, characterized in that: A sliding guide post 1 (103) is fixedly installed on the outside of the pressure plate body (101), and a sliding guide post 2 (303) is fixedly installed on both sides of the positioning plate body (301). A guide post (403) is also fixedly installed at the upper end of the pallet body (401), and the guide post (403) moves through the sliding guide post 1 (103) and the sliding guide post 2 (303).

3. The welding apparatus tooling according to claim 1, characterized in that: The outer side of the pressure plate body (101) is fixedly provided with a hook and a hook (104), while the two sides of the tray body (401) are fixedly connected with hook and hook components (402), and the hook and hook components (402) are engaged with the hook and hook (104).

4. The welding apparatus tooling according to claim 1, characterized in that: The welding stud (2) is located at the bottom of the pressure plate body (101) and moves through the movable small plate (102) at the upper end of the pressure plate body (101). The upper end of the pressure plate body (101) is also provided with a locking nut (105) that is threadedly connected to the upper end of the welding stud (2).

5. The welding apparatus tooling according to claim 1, characterized in that: The bottom of the pressure plate body (101) is also provided with a compression spring (106), and a copper sleeve (107) is inserted through the center of the compression spring (106). The bottom of the copper sleeve (107) is movably connected with a stroke stud (108).

6. The welding apparatus tooling according to claim 1, characterized in that: The square battery cell (5), positioning plate (302), and movable plate (102) in the placement slot are arranged in a one-to-one correspondence.