Lithium battery module detection device

Abstract

The utility model discloses a lithium battery module detection device, which belongs to the technical field of battery detection, and comprises a bottom plate, one side of the bottom plate is fixedly connected with a stand column, and a detection plate positioned right above the bottom plate is arranged on the side surface of the stand column in an up-down sliding manner. According to the lithium battery module detection device, a first sliding groove is matched with a locking assembly to achieve sliding of a first sliding block, then moving adjustment of a fixed rod and a rotating rod is achieved, a driving assembly is matched with a mounting plate, vertical movement of a second sliding block and an inserting rod is achieved, and locking or unlocking of the rotating rod is achieved in cooperation with an inserting ring; therefore, the rotating rod is locked before the battery module is detected to assist in positioning, the rotating rod is unlocked after the battery module is detected to facilitate movement of the battery module, and compared with an existing device, the problem that it is difficult to adapt to lithium battery modules of different sizes is solved; and the problem that the moving directions of the lithium battery modules before and after detection are opposite due to the fixed limiting baffle is solved, and the detection efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of battery testing technology, and in particular relates to a lithium battery module testing device. Background Technology

[0002] Lithium-ion batteries are widely used in the new energy vehicle sector, and the reused lithium-ion batteries from automobiles are beginning to be widely applied in other industries. Retired lithium-ion battery modules typically need to be disassembled and reassembled for reuse. Before disassembling the battery modules, the open-circuit voltage of the modules and cells must be tested. If a cell or module has zero voltage, further assessment is needed to determine its value for disassembly. Therefore, open-circuit voltage testing of lithium-ion battery modules and cells is a necessary step before disassembling used battery modules.

[0003] Existing lithium battery module testing equipment is inconvenient to use. Each time a lithium battery module is tested, it needs to be placed directly under the testing component and aligned with it, depending on the size of the lithium battery module. When testing multiple lithium battery modules of the same size in the same batch in sequence, manual alignment is required, which is cumbersome and inefficient.

[0004] Some lithium battery module testing devices can quickly locate multiple lithium battery modules of the same size by setting fixed limiting baffles. However, this is difficult to adapt to lithium battery modules of different batches and sizes. In addition, the fixed limiting baffles will cause the lithium battery modules to move in opposite directions before and after testing, which will affect the testing efficiency.

[0005] To address this issue, we propose a lithium battery module testing device. Utility Model Content

[0006] The purpose of this invention is to solve the problems of inconvenience in use and low detection efficiency in the existing technology, and to propose a lithium battery module testing device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A lithium battery module testing device includes a base plate, a column fixedly connected to one side of the base plate, and a testing plate located directly above the base plate that slides up and down on the side of the column.

[0009] The bottom plate below the column is provided with a first sliding groove, and the bottom of the first sliding groove is provided with a second sliding groove. An installation plate is slidably mounted in the second sliding groove. A driving component is provided below the installation plate to drive the installation plate to move up and down. A first sliding block is slidably mounted in the first sliding groove. A locking component is also provided in the first sliding groove to lock the sliding of the first sliding block. A fixing rod is fixedly connected to the top surface of the first sliding block, and a rotating rod is rotatably connected to one end of the fixing rod.

[0010] The top surface of the mounting plate is slidably connected to a second sliding block, the top surface of the second sliding block is fixedly connected to an insert rod, the end of the rotating rod is fixedly connected to an insert ring, the end of the fixed rod is provided with a placement groove for inserting the insert ring, the top end of the insert rod passes through the first sliding block, and the insert rod and the insert ring cooperate with each other.

[0011] Preferably, the drive assembly includes a rotating shaft rotatably disposed inside the base plate, one end of the rotating shaft extending into the second slide groove and fixedly connected to a cam, and the top end of the cam abutting the bottom surface of the mounting plate, and the other end of the rotating shaft extending to the outside of the base plate and fixedly connected to a handle.

[0012] Preferably, a limiting block extending into the second sliding groove is fixedly connected to the bottom surface of the first sliding block.

[0013] Preferably, the locking assembly includes a toothed plate fixedly connected to one side of the first slide groove, a locking block that engages with the toothed plate is slidably connected to the side of the first sliding block facing the toothed plate, and a moving assembly for driving the locking block to move is provided inside the first sliding block.

[0014] Preferably, the moving component includes a lever fixedly connected to the side of the locking block located inside the first sliding block, an adjustment groove is provided on one side of the locking block for the lever to pass through and move, and a spring is provided inside the first sliding block to drive the locking block to move toward the toothed plate.

[0015] Preferably, a torsion spring is provided between the fixed rod and the rotating rod, and the torsion spring drives the rotating rod to rotate with the insert ring toward the placement groove.

[0016] In summary, the technical effects and advantages of this utility model are as follows: This lithium battery module testing device achieves the sliding of the first sliding block through the first sliding groove and locking component, thereby realizing the movement adjustment of the fixed rod and the rotating rod. Through the drive component and mounting plate, the second sliding block and the insertion rod can move up and down. With the help of the insertion ring, the rotating rod can be locked or unlocked. Thus, the rotating rod is locked before the battery module is tested to assist in positioning, and the rotating rod is unlocked after the battery module is tested to facilitate the movement of the battery module. Compared with existing devices, it avoids the problem of difficulty in adapting to lithium battery modules of different sizes, and the problem that the fixed limiting baffle will cause the lithium battery module to move in opposite directions before and after testing, thereby improving the testing efficiency. Attached Figure Description

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

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 for Figure 2 Top view;

[0020] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure;

[0021] Figure 5 This is a schematic diagram of the rotating rod in this utility model when it rotates;

[0022] Figure 6 This is a schematic cross-sectional view of the second groove in this utility model.

[0023] In the diagram: 1. Base plate; 2. Column; 3. Detection plate; 4. First slide groove; 5. Second slide groove; 6. Mounting plate; 7. First sliding block; 8. Fixed rod; 9. Rotating rod; 10. Second sliding block; 11. Insert rod; 12. Insert ring; 13. Placement groove; 14. Rotating shaft; 15. Cam; 16. Handle; 17. Limiting block; 18. Toothed plate; 19. Locking block; 20. Toggle lever; 21. Adjustment groove; 22. Spring; 23. Torsion spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1 A lithium battery module testing device includes a base plate 1, a column 2 fixedly connected to one side of the base plate 1, and a testing plate 3 located directly above the base plate 1 that slides up and down on the side of the column 2. The testing plate 3 is existing technology, and the lithium battery module is electrically connected to the bottom contact point of the testing plate 3 to achieve testing. It is common in the field of lithium battery module testing and will not be described in detail.

[0026] Reference Figure 1 , Figure 2 , Figure 6 The base plate 1 below the column 2 has a first sliding groove 4, and the bottom surface of the first sliding groove 4 has a second sliding groove 5. The mounting plate 6 is slidably mounted in the second sliding groove 5. The mounting plate 6 is driven by a drive assembly below it. The first sliding block 7 is slidably mounted in the first sliding groove 4. The first sliding groove 4 also has a locking assembly for locking the sliding of the first sliding block 7. The top surface of the first sliding block 7 is fixedly connected to a fixing rod 8, and one end of the fixing rod 8 is rotatably connected to a rotating rod 9.

[0027] Reference Figure 5 , Figure 6The top surface of the mounting plate 6 is slidably connected to a second sliding block 10, the top surface of the second sliding block 10 is fixedly connected to an insert rod 11, the end of the rotating rod 9 is fixedly connected to an insert ring 12, the end of the fixed rod 8 is provided with a placement groove 13 for inserting the insert ring 12, the top end of the insert rod 11 passes through the first sliding block 7, and the insert rod 11 and the insert ring 12 cooperate with each other.

[0028] Before use, the lithium battery module testing device first moves the lithium battery module to be tested to below the testing plate 3. After moving it directly below the testing plate 3 and satisfying the contact detection of the testing plate 3, the first sliding block 7 is moved until the rotating rod 9 and the fixed rod 8 respectively fit against the two side walls of the lithium battery module. At this time, the first sliding block 7 is locked by the locking component, and then the base plate 1 is driven to move downward by the driving component. The second sliding block 10 moves downward accordingly, and the insertion rod 11 moves downward and disengages from the insertion ring 12. At this time, the rotating ring can rotate, and the tested lithium battery module can be moved away from the testing position.

[0029] After the tested lithium battery module leaves the testing position, the rotating rod 9 is returned to its original position. The drive assembly moves the base plate 1 upward, the insertion rod 11 moves upward and inserts into the insertion ring 12, and the rotating rod 9 is locked. At this point, the next lithium battery module to be tested can be moved to the area below the testing plate 3. The two sides of the lithium battery module are then aligned with the fixing rod 8 and the rotating rod 9, respectively, allowing for a relatively quick and convenient movement of the lithium battery module to the testing position. After this is completed, the testing of the lithium battery module can begin. After the testing is completed, the drive assembly moves the base plate 1 downward, the insertion rod 11 separates from the insertion ring 12, and the tested lithium battery module can be moved away from the testing position.

[0030] Reference Figure 1 , Figure 6 The drive assembly includes a rotating shaft 14 rotatably disposed inside the base plate 1. One end of the rotating shaft 14 extends into the second slide groove 5 and is fixedly connected to a cam 15, with the top of the cam 15 abutting the bottom surface of the mounting plate 6. The other end of the rotating shaft 14 extends to the outside of the base plate 1 and is fixedly connected to a handle 16. The operator rotates the handle 16 to drive the rotating shaft 14 to rotate, and the cam 15 rotates accordingly. The mounting plate 6, which is lifted by the cam 15, changes its height under the influence of gravity, thereby realizing the up and down movement of the second sliding block 10 and the insertion rod 11.

[0031] Reference Figure 6 Because of the presence of the locking component, the two sides of the first slider cannot simultaneously conform to the two side walls of the first slide groove 4, thus affecting the sliding stability of the first slider. To solve this problem, a limiting block 17 extending into the second slide groove 5 is fixedly connected to the bottom surface of the first sliding block 7. The limiting block 17 improves the sliding stability of the first sliding block 7 within the first slide groove 4. At the same time, the limiting block 17 extending into the second slide groove 5 can achieve the effect of improving stability without the need to add a limiting groove, thereby reducing manufacturing costs.

[0032] Reference Figure 2-4 The locking assembly includes a toothed plate 18 fixedly connected to one side of the first slide groove 4, and a locking block 19 that engages with the toothed plate 18 is slidably connected to the side of the first sliding block 7 facing the toothed plate 18. The first sliding block 7 has a moving component inside that drives the locking block 19 to move. This locking assembly drives the movement of the locking block 19 through the moving component, thereby achieving separation or engagement locking between the locking block 19 and the toothed plate 18. This, in turn, allows for manual pushing to move or lock the first sliding block 7 on the first slide groove 4.

[0033] The moving component includes a lever 20 fixedly connected to the side of the locking block 19 located inside the first sliding block 7. An adjustment groove 21 is provided on one side of the locking block 19 for the lever 20 to pass through and move. The first sliding block 7 is provided with a spring 22 that drives the locking block 19 to move toward the toothed plate 18. The moving component achieves automatic engagement and locking of the locking block 19 and the toothed plate 18 when no external force is applied by the spring 22. The locking block 19 and the toothed plate 18 can be separated by manually moving the lever 20.

[0034] Reference Figure 1 , Figure 2 , Figure 5 A torsion spring 23 is provided between the fixed rod 8 and the rotating rod 9, and the torsion spring 23 drives the rotating rod 9 to rotate with the insert ring 12 toward the placement groove 13. In this way, the rotating rod 9 is automatically reset after the lithium battery module that has been tested leaves the rotating rod 9, thereby improving the testing efficiency.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lithium battery module testing device, comprising a base plate (1), characterized in that, A column (2) is fixedly connected to one side of the base plate (1), and a detection plate (3) located directly above the base plate (1) is slidably mounted on the side of the column (2). The bottom plate (1) below the column (2) is provided with a first sliding groove (4), and the bottom surface of the first sliding groove (4) is provided with a second sliding groove (5). The second sliding groove (5) is provided with a mounting plate (6) that slides up and down. The mounting plate (6) is provided with a driving component for driving the mounting plate (6) to move up and down below it. The first sliding groove (4) is provided with a first sliding block (7). The first sliding groove (4) is also provided with a locking component for locking the sliding of the first sliding block (7). The top surface of the first sliding block (7) is fixedly connected with a fixing rod (8). One end of the fixing rod (8) is rotatably connected with a rotating rod (9). The mounting plate (6) is slidably connected to a second sliding block (10), and the top surface of the second sliding block (10) is fixedly connected to a plug rod (11). The end of the rotating rod (9) is fixedly connected to a plug ring (12). The end of the fixed rod (8) is provided with a placement groove (13) for the plug ring (12) to be inserted. The top end of the plug rod (11) passes through the first sliding block (7), and the plug rod (11) and the plug ring (12) cooperate with each other.

2. The lithium battery module testing device according to claim 1, characterized in that, The drive assembly includes a rotating shaft (14) rotatably disposed inside the base plate (1). One end of the rotating shaft (14) extends into the second slide groove (5) and is fixedly connected to a cam (15). The top end of the cam (15) is attached to the bottom surface of the mounting plate (6). The other end of the rotating shaft (14) extends to the outside of the base plate (1) and is fixedly connected to a handle (16).

3. The lithium battery module testing device according to claim 1, characterized in that, The bottom surface of the first sliding block (7) is fixedly connected to a limiting block (17) extending into the second sliding groove (5).

4. The lithium battery module testing device according to claim 1, characterized in that, The locking assembly includes a toothed plate (18) fixedly connected to one side of the first slide groove (4), and a locking block (19) that cooperates with the toothed plate (18) is slidably connected to the side of the first sliding block (7) facing the toothed plate (18). The first sliding block (7) is provided with a moving component that drives the locking block (19) to move.

5. A lithium battery module testing device according to claim 4, characterized in that, The moving component includes a lever (20) fixedly connected to the side of the locking block (19) located inside the first sliding block (7). The locking block (19) has an adjustment groove (21) on one side for the lever (20) to pass through and move. The first sliding block (7) has a spring (22) inside for driving the locking block (19) to move toward the toothed plate (18).

6. The lithium battery module testing device according to claim 1, characterized in that, A torsion spring (23) is provided between the fixed rod (8) and the rotating rod (9), and the torsion spring (23) drives the rotating rod (9) to rotate with the insert ring (12) toward the placement groove (13).

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