A limiting device for assembling lithium battery

Abstract

This utility model discloses a limiting device for lithium battery assembly, relating to the field of lithium battery assembly technology. It includes a base plate, a first limiting plate, a second limiting plate, a third limiting plate, a fourth limiting plate, and a threaded knob. The base plate is provided with the first, second, third, and fourth limiting plates. Two adjacent first, second, third, and fourth limiting plates are perpendicularly connected and fixed by the threaded knob. Each of the first, second, third, and fourth limiting plates includes an L-shaped plate body. This utility model, by setting a limiting device composed of the first, second, third, and fourth limiting plates, allows for length and width adjustment via the threaded knob, thereby meeting the limiting needs of lithium batteries of different sizes within a certain range. Compared with existing fixed-size limiting devices, this utility model has a wider range of applications.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery assembly technology, specifically a limiting device for lithium battery assembly. Background Technology

[0002] Lithium-ion batteries are widely used in electric vehicles, energy storage systems, and consumer electronics due to their advantages such as high energy density, long cycle life, and low self-discharge rate.

[0003] During the battery module assembly process, multiple individual batteries need to be arranged and fixed in a specific array (such as series or parallel) to form an overall structure with stable electrical connection and mechanical strength. Most of the limiting devices used in traditional lithium battery assembly are fixed-size frames that can only be adapted to a single battery model and cannot be compatible with batteries of different shapes or sizes, which greatly limits their use. Utility Model Content

[0004] The purpose of this invention is to provide a limiting device for lithium battery assembly to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A limiting device for lithium battery assembly includes a base plate, a first limiting plate, a second limiting plate, a third limiting plate, a fourth limiting plate, and a threaded knob. The base plate is provided with the first limiting plate, the second limiting plate, the third limiting plate, and the fourth limiting plate. Two adjacent first limiting plates, the second limiting plate, the third limiting plate, and the fourth limiting plate are perpendicularly connected and fixed by the threaded knob. Each of the first limiting plate, the second limiting plate, the third limiting plate, and the fourth limiting plate includes an L-shaped plate body. A side groove is formed on the side of the long plate of the L-shaped plate body, and an upper groove is formed on the upper part of the long plate of the L-shaped plate body. The upper groove communicates with the side groove. A partition plate perpendicular to the L-shaped plate body is provided in the middle of the L-shaped plate body, and the partition plate is fixed to the L-shaped plate body by screws.

[0006] As a further embodiment of this utility model: a first threaded hole is provided on the short plate of the L-shaped plate, and the threaded knob passes through the side long groove and is threadedly connected to the first threaded hole.

[0007] As a further embodiment of this utility model: the partition plate is slidably disposed in the side long groove, and the screw passes through the upper long groove and is threadedly connected to the second threaded hole on the partition plate. Several second threaded holes are equally spaced on the partition plate.

[0008] As a further improvement of this utility model, one end of the side groove penetrates through the end of the L-shaped plate.

[0009] As a further improvement of this utility model, positioning holes are provided at the four corners of the base plate.

[0010] As a further improvement of this utility model, the partition plate is an insulating plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model provides a limiting device composed of a first limiting plate, a second limiting plate, a third limiting plate, and a fourth limiting plate. The length and width of this limiting device can be adjusted by a threaded knob, thereby meeting the limiting needs of lithium batteries of different sizes within a certain range. Compared with existing fixed-size limiting devices, this utility model has a wider range of applications.

[0012] 2. This utility model uses a partition plate connected to the limiting plate to physically separate adjacent lithium batteries. This physical isolation prevents the positive and negative electrodes from directly contacting the conductive parts of adjacent batteries, thus fundamentally blocking the risk of short circuits. The number and position of the partition plates can be adjusted according to actual needs to meet the separation requirements during the assembly of lithium batteries of different sizes and quantities. Attached Figure Description

[0013] Figure 1 This is a top view of a limiting device for assembling lithium batteries.

[0014] Figure 2 A limiting device for lithium battery assembly Figure 1 A schematic diagram of the structure of the fourth limiting plate.

[0015] Figure 3 A limiting device for lithium battery assembly Figure 1 A schematic diagram of the middle partition plate.

[0016] 1. Base plate; 2. First limiting plate; 3. Second limiting plate; 4. Third limiting plate; 5. Fourth limiting plate; 6. Threaded knob; 7. Divider plate; 8. Screw; 9. Positioning hole; 10. L-shaped plate; 11. Side long groove; 12. First threaded hole; 13. Upper long groove; 14. Second threaded hole. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-2In this embodiment of the present invention, a limiting device for lithium battery assembly includes a base plate 1, a first limiting plate 2, a second limiting plate 3, a third limiting plate 4, a fourth limiting plate 5, and a threaded knob 6. The base plate 1 is provided with the first limiting plate 2, the second limiting plate 3, the third limiting plate 4, and the fourth limiting plate 5. Two adjacent first limiting plates 2, 3, 4, and 5 are perpendicularly connected and fixed by the threaded knob 6. Each of the first limiting plates 2, 3, 4, and 5 includes an L-shaped plate body 10. The long side of the L-shaped plate body 10... A side elongated groove 11 is provided, which facilitates the adjustment of the position of the partition plate 7. An upper elongated groove 13 is provided on the upper part of the long plate of the L-shaped plate 10, which facilitates the passage of the screw 8 and the adjustment of the position of the screw 8. The upper elongated groove 13 communicates with the side elongated groove 11. A first threaded hole 12 is provided on the short plate of the L-shaped plate 10. The threaded knob 6 passes through the side elongated groove 11 and is threadedly connected to the first threaded hole 12. One end of the side elongated groove 11 passes through the end of the L-shaped plate 10. This design allows for easy increase or decrease of the number of partition plates 7 on the limiting plate.

[0019] Please see Figure 1 and Figure 3 The L-shaped plate 10 has a partition plate 7 perpendicular to it in the middle. The partition plate 7 is fixed to the L-shaped plate 10 by screws 8. The partition plate 7 is slidably set in the side elongated groove 11. The screws 8 pass through the upper elongated groove 11 and are threadedly connected to the second threaded hole 14 on the partition plate 7. Several second threaded holes 14 are equally spaced on the partition plate 7. The partition plate 7 is an insulating plate made of insulating material. The partition plate 7 avoids direct contact between the positive and negative electrodes and the conductive parts of adjacent batteries through physical isolation, fundamentally blocking the risk of short circuit. For example, in a cylindrical battery module, the annular groove of the partition plate can accurately hold the battery, ensuring that the tabs and the adjacent battery shells maintain a safe distance of ≥2mm.

[0020] Please see Figure 1 The base plate 1 has positioning holes 9 at its four corners. The positioning holes 9 make it easy to install the base plate 1 on the corresponding equipment platform, thereby maintaining the stability of the entire limiting device.

[0021] The working principle of this utility model is as follows: In use, based on the acquired lithium battery assembly data (quantity, size of individual lithium batteries, and overall size after assembly), first adjust the number of partition plates 7 on each limiting plate, then adjust the limiting size of the limiting device. During adjustment, loosen the four threaded knobs 6, then adjust the relative position of two adjacent limiting plates. After adjustment, adjust the position of the partition plates 7. When adjusting the position of the partition plates 7, first unscrew the screws 8, then slide the partition plates 7 in the side elongated groove 11 to adjust the distance between adjacent partition plates 7. Then, adjust the length of the partition plates 7 extending into the frame through the second threaded hole 14 and the screws 8. Then, place the lithium batteries into the several cavities separated by the limiting plates and partition plates 7. Finally, tighten the limiting components through the threaded knobs 6, thereby fixing the lithium batteries through the limiting device.

[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A limiting device for lithium battery assembly, comprising a base plate (1), a first limiting plate (2), a second limiting plate (3), a third limiting plate (4), a fourth limiting plate (5), and a threaded knob (6), characterized in that: The base plate (1) is provided with a first limiting plate (2), a second limiting plate (3), a third limiting plate (4) and a fourth limiting plate (5). Two adjacent limiting plates (2), (3), (4) and (5) are vertically connected and fixed by a threaded knob (6). Each of the first limiting plate (2), (3), (4) and (5) includes an L-shaped plate body (10). The side of the long plate of the L-shaped plate body (10) is provided with a side long groove (11). The upper part of the long plate of the L-shaped plate body (10) is provided with an upper long groove (13). The upper long groove (13) communicates with the side long groove (11). A partition plate (7) perpendicular to the L-shaped plate body (10) is provided in the middle of the L-shaped plate body (10). The partition plate (7) is fixed to the L-shaped plate body (10) by screws (8).

2. The limiting device for assembling lithium battery according to claim 1, characterized in that: The short plate of the L-shaped plate (10) has a first threaded hole (12), and the threaded knob (6) passes through the side long groove (11) and is threadedly connected to the first threaded hole (12).

3. The limiting device for assembling lithium battery according to claim 1, characterized in that: The partition plate (7) is slidably disposed in the side long groove (11). The screw (8) passes through the upper long groove (13) and is threadedly connected to the second threaded hole (14) on the partition plate (7). The second threaded hole (14) is opened at equal intervals on the partition plate (7).

4. The limiting device for assembling lithium battery according to claim 1, characterized in that: One end of the side-elongated groove (11) passes through the end of the L-shaped plate (10).

5. The limiting device for assembling lithium battery according to claim 1, characterized in that: The base plate (1) has positioning holes (9) at its four corners.

6. The limiting device for assembling lithium battery according to claim 1, characterized in that: The partition plate (7) is an insulating plate.

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