Lithium ion battery charging tool
By designing a adjustable test device and a downvoltage conduction device, the problem of battery cell waste caused by welding during charging and discharging test of lithium batteries is solved, and efficient testing of different types of lithium batteries and multiple uses of battery cells are achieved.
Patent Information
- Application Number
- CN202421835692.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-31
AI Technical Summary
In the prior art, during charging and discharging test of lithium batteries, the battery cell is welded on the conductive column by welding, resulting in the battery cell being unable to be used again, causing waste and affecting the test efficiency.
A lithium-ion battery charging equipment is designed, using an adjustable test device and a downward pressure conduction device, which adjusts the spacing and conducts the test plates through the cylinder and the electric push rod to avoid welding and support the reuse of the battery cell.
The charging and discharging test of different types of lithium batteries is realized, which avoids waste of battery cells after welding, improves the testing efficiency, and supports multiple use of battery cells.
Smart Images
Figure CN222994528U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of lithium battery testing, and specifically refers to a charging tool for lithium-ion batteries. Background Art
[0002] In the prior art, during the manufacturing process of lithium-ion batteries, in order to detect the electrical performance of the batteries, etc., it is necessary to charge and discharge the finished battery cells.
[0003] The existing methods mostly involve welding the charging and discharging tool to the conductive posts of the battery cells by welding. Such a method has low efficiency, and the battery cells after welding cannot be reused, seriously affecting the efficiency of charging and discharging the battery cells and causing waste of the battery cells. Based on this, it is necessary to improve and optimize the existing method. Summary of the Utility Model
[0004] The technical problem to be solved by the utility model is that in the prior art, when testing the performance of lithium batteries by charging and discharging, the method of welding to the conductive posts of the battery cells is adopted, resulting in the battery cells being unable to be reused, causing waste, and affecting the testing efficiency.
[0005] In order to achieve the above functions, the technical solution adopted by the utility model is as follows: A charging tool for lithium-ion batteries includes a bottom plate. A vertical plate is provided at the upper end of the bottom plate. A charging and discharging test device is provided on the vertical plate. A vertical groove is provided inside the vertical plate. A lifting plate is slidably provided in the vertical groove. A placement plate is provided on the upper end surface of the bottom plate. A lithium battery is placed inside the placement plate. A clamping device is provided in the bottom plate and can clamp and fix the lithium battery. A downward pressing and conducting device is provided in the vertical groove and is connected to the lifting plate. An adjustable test device is provided in the lifting plate. A connecting wire is provided on the charging and discharging test device and is electrically connected to the adjustable test device; The adjustable test device includes a horizontal groove. The horizontal groove is located in the lifting plate. A slider is slidably provided in the horizontal groove. A conductive post is provided in the slider. The connecting wire is electrically connected to the conductive post. The lower end of the conductive post is connected to a test electrode plate. The test electrode plate is located above the pole column of the lithium battery. A fixed block is provided at the upper end of the lifting plate. A cylinder is fixedly connected in the fixed block. The output end of the cylinder is connected to the slider. By pushing the slider with the cylinder, the distance between the two test electrode plates can be adjusted to meet the charging and discharging tests of lithium batteries of different models.
[0006] Further, the downward pressing and conducting device includes an electric push rod. The electric push rod is located in the vertical groove. The output end of the electric push rod is connected to the lifting plate. A plurality of second guide posts are provided in the vertical groove. The second guide posts penetrate through the lifting plate. By pulling the lifting plate up and down with the electric push rod, the test electrode plate is brought close to and conducted with the ear of the lithium battery, thereby realizing the charging and discharging test of the lithium battery. It is very convenient and can be reused.
[0007] Further, the clamping device includes a clamping plate which slides at the bottom of the bottom plate. A lead screw is rotatably provided in the bottom plate and is threadedly connected to the clamping plate. A first guide post is provided in the bottom plate and penetrates through the clamping plate. A hand wheel is provided at the outer end of the lead screw. By rotating the lead screw, the lead screw pushes the clamping plate to slide in the bottom plate, and thus the clamping plate can fix the lithium battery in the placement plate.
[0008] Preferably, a buffer pad is provided on one side of the clamping plate close to the lithium battery, which can prevent the lithium battery from being damaged by clamping.
[0009] Preferably, the slider is made of insulating material.
[0010] Preferably, the cylinder is a double-acting cylinder.
[0011] Preferably, the slider is slidably connected to the transverse groove in a snap-fit manner.
[0012] The beneficial effects of the present utility model adopting the above structure are as follows:
[0013] 1. The present utility model can adjust the distance between the test electrodes by setting an adjustable test device, so as to perform charge and discharge tests on lithium batteries with different signals. With the help of the downward pressing conduction device, the test electrodes are made to approach and conduct with the electrode tabs of the lithium battery, solving the trouble that the traditional welding method of conduction cannot be reused.
[0014] 2. The present utility model can fix the lithium battery in the placement plate during the charge and discharge test by setting a clamping device, ensuring good contact of the lithium battery. Description of the Drawings
[0015] Figure 1 is the overall three-dimensional view of a lithium-ion battery charging tooling of the present utility model;
[0016] Figure 2 is the structural diagram of the clamping device of a lithium-ion battery charging tooling of the present utility model;
[0017] Figure 3 is Figure 1 the partial enlarged view at A in
[0018] Figure 4 is Figure 1 the structural diagram of the lifting plate downward pressing conduction device in the vertical groove in
[0019] Among them, 1. bottom plate, 2. vertical plate, 3. charge and discharge test equipment, 4. vertical groove, 5. lifting plate, 6. placement plate, 7. lithium battery, 8. downward pressing conduction device, 9. clamping device, 10. adjustable test device, 11. connecting wire, 12. fixing block, 13. cylinder, 14. horizontal groove, 15. slider, 16. conductive column, 17. test electrode plate, 18. electric push rod, 19. guide post II, 20. clamping plate, 21. lead screw, 22. guide post I, 23. hand wheel, 24. buffer pad. Detailed implementation manner
[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0021] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.
[0022] As Figures 1-4 , a lithium-ion battery charging tooling of the present invention includes a bottom plate 1. A vertical plate 2 is provided at the upper end of the bottom plate 1. A charge and discharge test equipment 3 is provided on the vertical plate 2. A vertical groove 4 is provided inside the vertical plate 2. A lifting plate 5 is slidably provided in the vertical groove 4. A placement plate 6 is provided on the upper end surface of the bottom plate 1. A lithium battery 7 is placed inside the placement plate 6. A clamping device 9 is provided in the bottom plate 1 and can clamp and fix the lithium battery 7. A downward pressing conduction device 8 is provided in the vertical groove 4 and is connected to the lifting plate 5. An adjustable test device 10 is provided in the lifting plate 5. A connecting wire 11 is provided on the charge and discharge test equipment 3 and is electrically connected to the adjustable test device 10.
[0023] As Figure 1 , 3As shown in FIGS. 3 and 4, the adjustable test device 10 includes a horizontal groove 14 located in the lifting plate 5. A slider 15 is slidably disposed in the horizontal groove 14. The slider 15 is made of insulating material and is slidably connected to the horizontal groove 14 in a snap-fit manner. A conductive column 16 is provided in the slider 15. The connecting wire 11 is electrically connected to the conductive column 16. The lower end of the conductive column 16 is communicated with a test electrode plate 17. The test electrode plate 17 is located above the pole column of the lithium battery 7. A fixing block 12 is provided at the upper end of the lifting plate 5. A cylinder 13 is fixedly connected in the fixing block 12. The cylinder 13 is a two-way cylinder 13. The output end of the cylinder 13 is connected to the slider 15. By pushing the slider 15 with the cylinder 13, the distance between the two test electrode plates 17 can be adjusted to meet the charge and discharge tests for lithium batteries 7 of different models.
[0024] As shown in Figure 4 , the downward pressing conduction device 8 includes an electric push rod 18 located in the vertical groove 4. The output end of the electric push rod 18 is connected to the lifting plate 5. A plurality of second guide posts 19 are provided in the vertical groove 4. The second guide posts 19 penetrate through the lifting plate 5. By pulling the lifting plate 5 up and down with the electric push rod 18, the test electrode plate 17 can be brought close to and conduct with the tab of the lithium battery 7, thereby realizing the charge and discharge test for the lithium battery 7, which is very convenient and can be reused.
[0025] As shown in Figures 1-2 , the clamping device 9 includes a clamping plate 20 that slides at the bottom of the bottom plate 1. A buffer pad 24 is provided on one side of the clamping plate 20 close to the lithium battery 7 to prevent the lithium battery 7 from being damaged. A lead screw 21 is rotatably provided in the bottom plate 1 and is threadedly connected to the clamping plate 20. A first guide post 22 is provided in the bottom plate 1 and penetrates through the clamping plate 20. A hand wheel 23 is provided at the outer end of the lead screw 21. By rotating the lead screw 21, the lead screw 21 pushes the clamping plate 20 to slide in the bottom plate 1, and thus the clamping plate 20 can fix the lithium battery 7 in the placement plate 6.
[0026] During specific use, when performing a charge and discharge test on the lithium battery 7, first place the lithium battery 7 on the placement plate 6, and then rotate the hand wheel 23. The lead screw 21 rotates and drives the clamping plate 20 to slide on the first guide post 22. The buffer pad 24 on the clamping plate 20 clamps and fixes the lithium battery 7, so that the pole column of the lithium battery 7 faces upward and is located below the test electrode plate 17.
[0027] According to the width of the tab of the lithium battery 7, adjust the distance between the test electrode plates 17. By starting the cylinder 13, the cylinder 13 pulls the sliders 15 on both sides to slide in the horizontal groove 14 until the distance between the test electrode plates 17 is equal to and vertically corresponds to the distance between the pole columns of the lithium battery 7. By starting the electric push rod 18, the lifting plate 5 will slide in the second guide posts 19 until the test electrode plate 17 presses on the cell pole column of the lithium battery 7. The charge and discharge test equipment 3 can perform a charge and discharge test on the lithium battery 7, which is very convenient.
[0028] After the charge and discharge test is completed, the test electrode plate 17 can move upward, quickly separate from the lithium battery 7, loosen the clamping device 9, take out the lithium battery 7, place the next group of lithium batteries 7 for testing, and can repeat the test on the lithium battery 7 to improve the test efficiency.
[0029] The above describes the present invention and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the creation of the present invention, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.
Claims
1. A lithium-ion battery charging tool, comprising a bottom plate, a vertical plate is provided at the upper end of the bottom plate, characterized in that: The vertical plate is provided with a charging and discharging test equipment, a vertical groove is provided in the vertical plate, a lifting plate is slidably provided in the vertical groove, a placement plate is provided on the upper end surface of the bottom plate, a lithium battery is placed in the placement plate, a clamping device is provided in the bottom plate and can clamp and fix the lithium battery, a downward pressure conduction device is provided in the vertical groove and is connected to the lifting plate, an adjustable test device is provided in the lifting plate, and a connecting wire is provided on the charging and discharging test equipment and is electrically connected to the adjustable test device.
2. A lithium-ion battery charging tool according to claim 1, characterized in that: The adjustable testing device includes a transverse groove, which is located in the lifting plate. A slider is slidably provided in the transverse groove, a conductive column is provided in the slider, the connecting wire is electrically connected to the conductive column, the lower end of the conductive column is connected to a test plate, and the test plate is located above the pole of the lithium battery. A fixed block is provided at the upper end of the lifting plate, a cylinder is fixedly connected to the fixed block, and the output end of the cylinder is connected to the slider.
3. A lithium-ion battery charging tool according to claim 2, characterized in that: The downward pressure conduction device includes an electric push rod, which is located in a vertical slot. The output end of the electric push rod is connected to a lifting plate. A plurality of guide columns 2 are arranged in the vertical slot, and the guide columns 2 penetrate the lifting plate.
4. A lithium-ion battery charging tool according to claim 3, characterized in that: The clamping device includes a clamping plate, which slides at the bottom of the base plate. A screw rod is rotatably provided in the base plate and is threadedly connected to the clamping plate. A guide column is provided in the base plate and passes through the clamping plate. A hand wheel is provided at the outer end of the screw rod.
5. A lithium-ion battery charging tool according to claim 4, characterized in that: A buffer pad is provided on one side of the clamping plate close to the lithium battery.
6. A lithium-ion battery charging tool according to claim 5, characterized in that: The sliding block is made of insulating material.
7. A lithium-ion battery charging tool according to claim 6, characterized in that: The cylinder is a bidirectional cylinder.
8. A lithium-ion battery charging tool according to claim 7, characterized in that: The sliding block slides in the transverse groove in a buckled manner.