Battery cell pre-stacking tool

Abstract

The utility model discloses a battery cell pre-stacking tool which comprises a base, a rear baffle and a side baffle are arranged on the base, a heightening block is arranged on the base, and a combined type quick clamp is arranged on the heightening block. The combined quick clamp comprises two same bases, guide rails are arranged at the front ends of the bases, abutting blocks are arranged in the guide rails, the rear ends of the abutting blocks are connected through handles, and the ends of the handles are hinged to the bases. The battery cell pre-stacking tool is simple in structure, the pre-stacking efficiency of the battery cells is improved, rapid pre-stacking of the battery cells is achieved through the reasonably-designed tool structure, and the production efficiency is improved; the pre-stacking precision of the battery cells is improved; the stability of battery cell stacking is enhanced; the labor intensity is reduced; and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production technology, specifically to a cell pre-stacking tooling. Background Technology

[0002] With the increasing global demand for clean energy and growing concern about the environmental problems caused by traditional fuel energy, the new energy sector has experienced rapid development. Among various energy storage technologies, lithium-ion batteries have become a key energy storage device in fields such as electric vehicles and energy storage systems due to their advantages such as high energy density, long cycle life, and low self-discharge rate.

[0003] To meet the voltage and capacity requirements of different application scenarios, multiple individual lithium batteries are usually combined into lithium battery modules through a certain series and parallel connection method. The performance and reliability of lithium battery modules directly affect the performance of the entire battery system, and the stacking method of the cells plays a crucial role in the performance of the module.

[0004] In the early stages of lithium battery module production, manual stacking was a common method, where operators arranged and stacked individual cells one by one. Manual stacking was inefficient and could not meet the needs of large-scale production. Precision was difficult to guarantee, affecting module performance and consistency. Operators had to perform repetitive labor for long periods of time, which could easily lead to fatigue and increase operational errors. During manual operation, improper operation could cause safety issues such as battery short circuits and leakage.

[0005] To improve stacking efficiency and accuracy, some companies have adopted simple mechanical auxiliary equipment, such as clamps and positioning devices. However, simple mechanical stacking has poor versatility. These devices are usually only applicable to cells of specific specifications, and complex adjustments and modifications are required for cells of different sizes and shapes. The degree of automation is low. Although it improves efficiency and accuracy to some extent, it still requires a lot of manual intervention and cannot achieve fully automated production. The reliability is insufficient. Simple mechanical structures are prone to wear and loosening after long-term use, which affects the quality and stability of stacking.

[0006] Therefore, a completely new battery cell pre-stacking fixture is needed. Summary of the Invention

[0007] The purpose of this utility model is to provide a battery cell pre-stacking fixture to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: a battery cell pre-stacking fixture, including a base, a rear baffle and a side baffle on the base, a heightening block on the base, and a combined quick clamp on the heightening block;

[0008] The combined quick clamp includes two identical bases, each with a guide rail at its front end and a stop block inside the guide rail. The rear end of the stop block is connected to a handle, and the end of the handle is hinged to the base.

[0009] Preferably, a limiting strip is also provided between the base and the rear baffle.

[0010] Preferably, the front end of the abutment block is provided with a pressure plate, which is driven by the abutment block to move back and forth.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model improves the efficiency of cell pre-stacking: by designing a reasonable tooling structure, rapid pre-stacking of cells is achieved, thereby improving production efficiency;

[0013] 2. Improved cell pre-stacking accuracy: Precise positioning and clamping devices are used to ensure the accuracy of cell stacking, thereby improving battery performance and safety;

[0014] 3. Enhance the stability of cell stacking: Through reliable fixing and support structures, ensure the stability of cell stacking and reduce the risk of loosening and misalignment;

[0015] 4. Reduced labor intensity: Simple and convenient operation reduces the labor intensity of operators and improves work efficiency;

[0016] 5. Reduced costs: The structure is simple, the manufacturing cost is low, the maintenance is convenient, and it is suitable for pre-stacking of cells of different specifications, thus improving the applicability of the equipment. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the tooling state when the battery cells begin to be stacked.

[0019] Figure 3 This is a schematic diagram of the tooling state after the battery cells are stacked.

[0020] In the diagram, base-1, rear baffle-11, side baffle-12, limit stop bar-13, heightening block-2, combination quick clamp-3, base-31, guide rail-32, stop block-33, handle-34, pressure plate-4. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1 This utility model provides a technical solution: a battery cell pre-stacking fixture, including a base 1, on which a rear baffle 11 and a side baffle 12 are fixed by bolts. A limit stop 13 is also connected between the base 1 and the rear baffle 11 by bolts. The pressure of the limit stop 13 on the battery cell can be adjusted by adjusting the tightness of the bolts, thereby improving the accuracy and stability of the battery cell pre-stacking.

[0023] The base 1 is detachably equipped with a height-increasing block 2, which can be replaced according to the requirements of different height battery cells to adjust the height of the tooling and adapt to battery cells of different specifications, thereby improving the versatility of the tooling. A combination quick clamp 3 is fixed to the height-increasing block 2 by bolts. The combination quick clamp 3 is used to quickly squeeze the battery cell. The combination design can make the battery cell squeeze force more uniform and improve the accuracy and stability of pre-stacking.

[0024] The combined quick clamp 3 includes two identical bases 31. Each base 31 has a guide rail 32 at its front end. A stop block 33 is provided inside the guide rail 32. The rear end of the stop block 33 is connected to a handle 34. The end of the handle 34 is hinged to the base 31. Pulling the handle 34 downward will cause the stop block 33 to move forward inside the guide rail 32. Pushing the handle 34 upward will cause the stop block 33 to move backward inside the guide rail 32.

[0025] The front end of the abutment block 33 is fixed with a pressure plate 4 by bolts. The abutment block 33 drives the pressure plate 4 to move back and forth, thereby applying a certain pressure to the battery cell to ensure that the battery cell fits tightly during the pre-stacking process and improves the stability of the stacking. The pressure plate 4 can be selected according to the material and thickness of different battery cells, which improves the applicability of the tooling.

[0026] Working principle: First, place the pre-stacking fixture for battery cells on a horizontal worktable. Select appropriate heightening blocks 2 and pressure plates 4 according to the specifications of the pre-stacking battery cells, and fix them in place. Figure 2As shown, press down on the handle 34 of the combination quick clamp 3 to position the pressure plate 4 at its maximum stroke, which is the maximum distance between the pressure plate 4 and the rear baffle 11. Adjust the position of the limiting strip 13 so that its limiting width matches the width of the battery cell. Place the individual battery cell with pre-applied double-sided tape in front of the rear baffle 11, peel off the double-sided tape, and place the second battery cell in the module according to the stacking polarity order. Repeat placing the battery cells until the pre-stacking is complete. Figure 3 As shown, push the handle 34 of the combination quick clamp 3 upward to press the stacked cells together with the pressure plate 4. Release the handle 34 and remove the stacked cells for subsequent stacking of large modules.

[0027] 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. A battery cell pre-stacking fixture, comprising a base (1), wherein a rear baffle (11) and a side baffle (12) are provided on the base (1), characterized in that: The base (1) is provided with a heightening block (2), and the heightening block (2) is provided with a combination quick clamp (3); The combined quick clamp (3) includes two identical bases (31), each base (31) has a guide rail (32) at its front end, and a stop block (33) is provided inside the guide rail (32). The rear end of the stop block (33) is connected to a handle (34), and the end of the handle (34) is hinged to the base (31).

2. The cell pre-stacking fixture according to claim 1, characterized in that: A limiting stop (13) is also provided between the base (1) and the rear baffle (11).

3. The cell pre-stacking fixture according to claim 2, characterized in that: The front end of the abutment block (33) is provided with a pressure plate (4), which is driven by the abutment block (33) to move back and forth.

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