Lithium battery cell short circuit detection device

Abstract

The lithium battery cell short circuit detection device comprises a workbench and a charge and discharge tester, the charge and discharge tester is fixedly assembled at the upper end of the workbench, a U-shaped table is fixedly assembled at the upper end of the workbench, the charge and discharge tester is located on the right side of the U-shaped table, and fastening assemblies are assembled on the front side and the rear side of the U-shaped table; two lifting electric sliding rails are assembled at the upper end of the U-shaped table, testing heads are fixedly assembled at the output ends of the lifting electric sliding rails, and the two testing heads are both electrically connected with the charging and discharging tester. The fastening assembly comprises a pushing air cylinder, containing grooves are formed in the front side and the rear side of the U-shaped table, the pushing air cylinder is fixedly assembled in the containing grooves, and the output end of the pushing air cylinder slidably penetrates through the U-shaped table and is fixedly assembled with a fastening plate.

Description

Technical Field

[0001] This invention belongs to the field of lithium battery testing technology, specifically relating to a short-circuit detection device for lithium battery cells. Background Technology

[0002] In the production and use of lithium batteries, charge-discharge testing is a crucial step in evaluating cell performance and safety. Traditional testing methods have several shortcomings; for example, the simple structure of the testing device leads to unstable cell fixation, and displacement during testing can affect data accuracy; the test head position is difficult to adjust, making it hard to adapt to cells of different sizes and resulting in poor versatility; the overall device lacks optimized design, has low space utilization, and is inconvenient to operate. Therefore, this patent provides a lithium battery cell short-circuit detection device to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide a short-circuit detection device for lithium battery cells to solve the problems existing in the background art.

[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0005] A short-circuit detection device for lithium battery cells includes a workbench and a charge-discharge tester. The charge-discharge tester is fixedly mounted on the upper end of the workbench. A U-shaped platform is fixedly mounted on the upper end of the workbench. The charge-discharge tester is located on the right side of the U-shaped platform. Fastening components are mounted on both the front and rear sides of the U-shaped platform.

[0006] The upper end of the U-shaped platform is equipped with two lifting electric slide rails, and the output end of the lifting electric slide rails is fixedly equipped with a test head. Both test heads are electrically connected to the charge and discharge tester.

[0007] The fastening assembly includes a push cylinder. Placement slots are provided on both the front and rear sides of the U-shaped platform. The push cylinder is fixedly assembled in the placement slots. The output end of the push cylinder slides through the U-shaped platform and is fixedly assembled with a fastening plate.

[0008] Preferably, the upper left and right sides of the U-shaped platform are equipped with longitudinal electric slide rails, and the output ends of the two longitudinal electric slide rails are fixedly equipped with transverse electric slide rails. The two lifting electric slide rails are respectively fixedly equipped with the output ends of the two transverse electric slide rails.

[0009] Preferably, support columns are fixedly mounted at the four corners of the upper end of the U-shaped platform, and the two longitudinal electric slide rails are respectively mounted between the upper ends of the two support columns on the left and right sides.

[0010] Preferably, the transverse electric slide rail, which is fixedly mounted at the output end of the longitudinal electric slide rail, is slidably connected to the upper end of the longitudinal electric slide rail on the other side.

[0011] Preferably, a rubber pad is fixedly fitted to the end of the fastening plate.

[0012] Preferably, both rubber pads have anti-slip grooves at opposite ends.

[0013] Preferably, anti-slip feet are fixedly installed at the four corners of the lower end of the workbench.

[0014] Advantages of this invention: The workbench serves as a stable platform, ensuring the overall device is robust and reliable; the charge / discharge tester efficiently completes cell charge / discharge tests, providing accurate electrical parameters for short-circuit detection; the unique design of the U-shaped platform facilitates cell placement and fixation, optimizing the testing process; the lifting electric slide rail adjusts the test head height to accommodate cells of different sizes, enhancing the device's versatility and flexibility; the fastening assembly firmly clamps the cell through the cooperation of the push cylinder and the fastening plate, preventing displacement during testing and ensuring test accuracy; the push cylinder, installed in the placement slot, provides stable linear thrust, ensuring uniform force on the fastening plate; the rubber pad increases friction with the cell and prevents surface damage; the anti-slip groove further enhances the anti-slip effect; the anti-slip feet prevent the device from moving during operation; the support column provides stable support for the longitudinal electric slide rail; the lateral and longitudinal electric slide rails work together to achieve precise positioning of the test head; the entire device has a reasonable structural design, simple operation process, high testing efficiency, strong data reliability, and can effectively determine cell short-circuit phenomena, while also possessing good safety and adaptability, meeting the testing needs of lithium battery cells of different specifications. Attached Figure Description

[0015] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the structure of a short-circuit detection device for lithium battery cells according to the present invention. Figure 1 ;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0019] Figure 4 This is a schematic diagram of the structure of a short-circuit detection device for lithium battery cells according to the present invention. Figure 2 ;

[0020] The symbols for the main components are explained below:

[0021] Workbench 1, Charge / Discharge Tester 11, U-shaped Table 12, Lifting Electric Slide Rail 13, Test Head 131, Push Cylinder 14, Placement Slot 141, Fastening Plate 142, Longitudinal Electric Slide Rail 15, Transverse Electric Slide Rail 151, Support Column 152, Rubber Pad 153, Anti-slip Groove 154, Anti-slip Foot 155. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] like Figure 1-4 As shown, a short-circuit detection device for lithium battery cells according to the present invention includes a workbench 1 and a charge-discharge tester 11. The workbench 1 serves as the basic platform of the device, providing a stable support structure, facilitating the installation and positioning of other components, and ensuring the overall stability of the device. The charge-discharge tester 11 is fixedly installed on the workbench 1, which can efficiently complete the charge-discharge test of the battery cell and provide accurate electrical parameter support for short-circuit detection.

[0024] The charge / discharge tester 11 is fixedly mounted on the upper end of the workbench 1. A U-shaped platform 12 is fixedly mounted on the upper end of the workbench 1. The unique U-shaped design of the U-shaped platform 12 facilitates the placement and fixation of the battery cells, while providing space for the installation of fastening components and the test head 131, thus optimizing the testing process. The charge / discharge tester 11 is located on the right side of the U-shaped platform 12, and fastening components are mounted on both the front and rear sides of the U-shaped platform 12. The test head 131 is electrically connected to the charge / discharge tester to directly perform electrical testing on the battery cells, ensuring the reliability of signal transmission.

[0025] The upper end of the U-shaped platform 12 is equipped with two lifting electric slide rails 13. The output end of the lifting electric slide rail 13 is fixedly equipped with a test head 131. Both test heads 131 are electrically connected to the charge and discharge tester 11. The lifting electric slide rail 13 can adjust the height of the test head 131 to adapt to different sizes of battery cells, thereby improving the versatility and flexibility of the device.

[0026] The fastening assembly includes a push cylinder 14. A placement slot 141 is provided on both the front and rear sides of the U-shaped platform 12. The push cylinder 14 is fixedly mounted in the placement slot 141, and the output end of the push cylinder 14 slides through the U-shaped platform 12, where a fastening plate 142 is fixedly mounted. Through the cooperation of the push cylinder 14 and the fastening plate 142, the fastening assembly can firmly clamp the battery cell, preventing displacement during testing and ensuring test accuracy. The push cylinder 14, installed within the placement slot 141, provides a stable linear thrust through the U-shaped platform 12, ensuring that the fastening plate 142 applies force evenly. The fastening plate 142 directly contacts the battery cell and, in cooperation with the push cylinder 14, secures the battery cell; the structure is simple and effective.

[0027] The upper left and right sides of the U-shaped platform 12 are equipped with longitudinal electric slide rails 15, and the output ends of the two longitudinal electric slide rails 15 are fixedly equipped with transverse electric slide rails 151. The two lifting electric slide rails 13 are respectively fixedly equipped with the output ends of the two transverse electric slide rails 151.

[0028] Support columns 152 are fixedly mounted at the four corners of the upper end of the U-shaped platform 12, and two longitudinal electric slide rails 15 are respectively mounted between the upper ends of the two support columns 152 on the left and right sides.

[0029] The transverse electric slide rail 151, which is fixedly mounted at the output end of the longitudinal electric slide rail 15, is slidably connected to the upper end of the longitudinal electric slide rail 15 on the other side.

[0030] A rubber pad 153 is fixedly fitted to the end of the fastening plate 142. The rubber pad 153 is installed at the end of the fastening plate 142 to increase the friction with the battery cell, prevent slippage during clamping, and avoid damage to the surface of the battery cell.

[0031] Both rubber pads 153 have anti-slip grooves 154 at opposite ends. The anti-slip grooves 154 are located on the contact surface of the rubber pads 153 to further enhance the anti-slip effect and ensure that the battery cell will not shift during testing.

[0032] Anti-slip feet 155 are fixedly installed at the four corners of the lower end of the workbench 1. Installed at the bottom of the workbench 1, they increase the friction between the device and the ground, prevent the device from moving during operation, and improve safety.

[0033] When testing lithium battery cells, the cell to be tested is first placed at the center of the upper end of the U-shaped platform 12. The push cylinder 14 is activated, and the output end of the cylinder 14 drives the fastening plate 142 to move towards the cell. The cell is firmly clamped in the center of the U-shaped platform 12 by the rubber pad 153 and the anti-slip groove 154. Then, the longitudinal electric slide rail 15 and the transverse electric slide rail 151 are adjusted so that the lifting electric slide rail 13 moves the test head 131 above the positive and negative electrodes of the cell. The height of the test head 131 is then adjusted by the lifting electric slide rail 13 so that the test head 131 is in close contact with the electrodes of the cell.

[0034] After positioning is completed, the charge / discharge tester 11 is activated to perform charge / discharge tests on the battery cell. During the test, the charge / discharge tester 11 monitors the electrical parameters of the battery cell in real time and uses the data collected by the test head 131 to determine whether there is a short circuit in the battery cell. After the test, the lifting electric slide rail 13 drives the test head 131 to rise and reset, pushing the cylinder 14 to retract and loosen the fastening plate 142 to remove the battery cell, allowing the tested battery cell to be removed. Throughout the process, the anti-slip feet 155 ensure the stability of the workbench 1, the support column 152 provides stable support for the longitudinal electric slide rail 15, the transverse electric slide rail 151 cooperates with the longitudinal electric slide rail 15 to achieve precise positioning of the test head 131, the placement slot 141 provides installation space for the pushing cylinder 14, and the U-shaped design of the U-shaped platform 12 facilitates the placement and fixation of the battery cell.

[0035] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A short-circuit detection device for lithium battery cells, comprising a workbench and a charge / discharge tester, characterized in that: The charge-discharge tester is fixedly mounted on the upper end of the workbench, and a U-shaped platform is fixedly mounted on the upper end of the workbench. The charge-discharge tester is located on the right side of the U-shaped platform, and fastening components are mounted on both the front and rear sides of the U-shaped platform. The upper end of the U-shaped platform is equipped with two lifting electric slide rails, and the output end of the lifting electric slide rails is fixedly equipped with a test head. Both test heads are electrically connected to the charge and discharge tester. The fastening assembly includes a push cylinder. Placement slots are provided on both the front and rear sides of the U-shaped platform. The push cylinder is fixedly assembled in the placement slots. The output end of the push cylinder slides through the U-shaped platform and is fixedly assembled with a fastening plate.

2. The lithium battery cell short-circuit detection device according to claim 1, characterized in that: The upper left and right sides of the U-shaped platform are equipped with longitudinal electric slide rails, and the output ends of the two longitudinal electric slide rails are fixedly equipped with transverse electric slide rails. The two lifting electric slide rails are respectively fixedly equipped with the output ends of the two transverse electric slide rails.

3. The lithium battery cell short-circuit detection device according to claim 2, characterized in that: The U-shaped platform is fixedly equipped with support columns at all four corners, and the two longitudinal electric slide rails are respectively assembled between the upper ends of the two support columns on the left and right sides.

4. The lithium battery cell short-circuit detection device according to claim 2, characterized in that: The transverse electric slide rail, which is fixedly mounted at the output end of the longitudinal electric slide rail, is slidably connected to the upper end of the longitudinal electric slide rail on the other side.

5. The lithium battery cell short-circuit detection device according to claim 1, characterized in that: A rubber pad is fixedly fitted to the end of the fastening plate.

6. The lithium battery cell short-circuit detection device according to claim 5, characterized in that: Both rubber pads have anti-slip grooves at opposite ends.

7. The lithium battery cell short-circuit detection device according to claim 1, characterized in that: Anti-slip feet are fixedly installed at the four corners of the lower end of the workbench.

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