A lithium battery component testing device and testing method

Abstract

This invention discloses a lithium battery pack product testing device and method, relating to the field of battery testing technology. The device includes a testing platform with an arc-shaped frame fixedly connected to the top of its outer wall. An arc-shaped groove is formed on the arc-shaped frame, which is movably fitted onto the outer wall of a movable frame. A drive motor is housed within the movable frame. An arc-shaped toothed plate is fixedly connected to the inner wall of the arc-shaped frame, and a moving gear is meshed with the side wall of the arc-shaped toothed plate. The drive motor is connected to the moving gear via a rotating shaft. This invention, by incorporating the arc-shaped frame, the movable frame, and the drive motor, enables multi-directional impact testing of lithium battery packs, overcoming the limitations of traditional unidirectional testing, improving the accuracy of safety risk assessment, and achieving failure simulation close to real-world scenarios.

Description

Technical Field

[0001] This invention relates to the field of battery testing technology, specifically to a lithium battery component testing device and testing method. Background Technology

[0002] In practical applications, lithium batteries face various complex operating conditions and are subjected to random impacts from all directions. For example, when an electric vehicle travels on a bumpy road, the battery pack will be subjected to vibrations and impacts in multiple directions, including vertical, horizontal, and front-back. When portable electronic devices are accidentally dropped, the batteries will also be impacted from different directions. Furthermore, the structural strength of lithium battery packs varies in different directions.

[0003] Lithium battery testing devices generally adopt a single axial impact mode, which applies impact force in a fixed direction through the impact head. This cannot simulate real multi-directional stress scenarios, causing the test data to be disconnected from actual faults and making it impossible to comprehensively evaluate the safety performance of lithium battery packs in actual use environments.

[0004] Patent CN116929967B discloses a testing device and method for finished solar cell products. The patent enables automatic loading and unloading of cells, improves testing efficiency and quality, and increases the production efficiency of cells.

[0005] The aforementioned patent uses a first handling robot, a second handling robot, and a third handling robot to automatically load and unload battery cells. The cooperation between the first impact device, the second impact device, and the bending detection device performs bending detection on the upper and lower surfaces of the battery cells, which solves the problem of low detection efficiency and production efficiency of battery cells. However, there is still room for optimization in multi-directional stamping. This application realizes multi-directional impact testing of battery packs, solves the problem of realizing multi-directional impact testing, and overcomes the limitations of traditional single-directional testing.

[0006] Therefore, this application proposes a lithium battery component testing device and method for realizing multi-directional impact testing. Summary of the Invention

[0007] The purpose of this invention is to provide a lithium battery component testing device and method to solve the technical problems of the limitations of traditional unidirectional testing mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a lithium battery component testing device, comprising a testing platform, an arc-shaped frame fixedly connected to the top of the outer wall of the testing platform, an arc-shaped groove formed on the arc-shaped frame, the arc-shaped groove being movably fitted onto the outer wall of a movable frame, a drive motor disposed within the movable frame, an arc-shaped toothed plate fixedly connected to the inner wall of the arc-shaped frame, a movable gear meshing with the side wall of the arc-shaped toothed plate, the drive motor being connected to the movable gear via a rotating shaft, a connecting plate fixedly connected to the bottom of the outer wall of the movable frame, a first motor connected to the connecting plate via a first rotating rod, a lifting plate disposed at the bottom of the first motor, the lifting plate being movably fitted onto the outer wall of an impact column, a connecting body disposed at the bottom of the impact column, an impact plate detachably connected to the bottom of the connecting body, and an impact head disposed at the bottom of the impact plate.

[0009] Preferably, the testing platform is provided with an inner ring block, a first annular toothed plate is fixedly connected to the side wall of the inner ring block, a first rotating gear is meshed with the side wall of the first annular toothed plate, a first adjusting motor is fixedly installed inside the testing platform, the first adjusting motor is connected to the first rotating gear through a rotating shaft, a circumferential plate is symmetrically fixedly connected to the top of the outer wall of the inner ring block, a first electric push rod is fixedly connected to the top of the outer wall of the circumferential plate, a lifting block is fixedly connected to the top of the outer wall of the first electric push rod, a second electric push rod is symmetrically arranged on the lifting block, and a clamping block is fixedly connected to the side wall of the second electric push rod.

[0010] Preferably, a rotary motor is fixedly installed inside the clamping block, and a rotating plate is connected to the rotary motor via a rotating shaft. The clamping block is movably fitted onto the outer wall of the rotating plate. An outer ring block is movably installed on the detection table. A second annular toothed plate is fixedly connected to the side wall of the outer ring block. A second rotating gear is meshed with the side wall of the second annular toothed plate. A second adjusting motor is connected to the second rotating gear via a rotating shaft. A second adjusting motor is fixedly installed inside the detection table. A detection camera is fixedly connected to the top of the outer wall of the outer ring block. The detection camera is connected to a first electric push rod, a first adjusting motor, a rotary motor, and a first motor via Bluetooth.

[0011] Preferably, the clamping block is symmetrically provided with sliding frames, a second motor is fixedly connected to the sliding frames, the second motor is connected to a first transmission wheel through a rotating shaft, a transmission belt is provided on the outer wall of the first transmission wheel, the transmission belt is movably fitted on the outer wall of the second transmission wheel, the second transmission wheel is fixedly fitted on the outer wall of the second rotating rod, a rotating roller is fixedly installed on the outer wall of the second rotating rod, the sliding frame is rotatably connected to the side wall of the second rotating rod, a movable toothed plate is fixedly connected to the outer wall of the sliding frame, a rotating gear is meshed on the side wall of the movable toothed plate, a third motor is provided inside the clamping block, the third motor is connected to the rotating gear through a rotating shaft, and the detection camera is connected to the second motor and the third motor via Bluetooth.

[0012] Preferably, the detection camera is connected to a servo motor via Bluetooth, the servo motor is connected to a cam via a rotating shaft, a driven plate is fixedly connected to the top of the outer wall of the impact column, the driven plate is in contact with the cam, an impact spring is provided on the outer wall of the impact column, the impact spring is located between the lifting plate and the connecting body, a motor bracket is fixedly connected to the outer wall of the servo motor, and a lifting plate is fixedly connected to the bottom of the outer wall of the motor bracket.

[0013] Preferably, an electromagnet is provided at the bottom of the connector, a positioning groove is provided at the bottom of the connector, a permanent magnet is provided at the top of the impact plate, and a positioning groove is movably fitted on the outer wall of the permanent magnet.

[0014] Preferably, the side wall of the connector is provided with a connector port, a connector wire is fixedly connected to the side wall of the connector port, a connector body is provided on the outer wall of the connector wire, a contact point is provided on the top of the impact plate of the connector body, a resistance wire is provided on the side wall of the contact point, and an impact plate is provided on the outer wall of the resistance wire.

[0015] Preferably, a synchronization plate is fixedly connected to the side wall of the sliding frame, a limit groove is opened in the clamping block, the limit groove is movably fitted on the outer wall of the synchronization plate, and the sliding frame is symmetrically arranged on both sides of the rotating plate.

[0016] Preferably, the detection method includes the following steps:

[0017] S1. Place the lithium battery pack to be tested on the testing table, start the second electric push rod, the second electric push rod extends, the second electric push rod drives the clamping block and rotating plate to approach the lithium battery pack to be tested, and clamp and fix the lithium battery pack.

[0018] S2. Start the drive motor. The drive motor drives the moving gear to rotate. The moving gear moves along the arc-shaped toothed plate, causing the arc-shaped toothed plate and the drive motor to move the moving frame on the arc-shaped frame. The moving frame moves the connecting plate and the lifting plate to adjust the position of the impact head.

[0019] S3. Start the first motor. The first motor drives the first rotating rod to rotate. The first rotating rod and the first motor drive the lifting plate to gradually move away from the connecting plate. The lifting plate drives the impact column, connecting body, impact plate and impact head to move. When the detection camera detects that the impact head is in contact with the lithium battery pack, the detection camera shuts down the first motor and starts the servo motor.

[0020] S4. The servo motor drives the cam to rotate, with the long end of the cam facing the driven plate. The cam drives the driven plate away from the lifting plate, and the driven plate drives the impact column and connecting body to move, gradually compressing the impact spring. The cam continues to rotate, and the impact spring releases its elastic potential energy. The impact spring drives the connecting body, impact plate, and impact head. The impact head impacts the lithium battery pack, and the detection camera monitors the casing status of the lithium battery pack in real time.

[0021] Preferably, the detection method further includes the following steps:

[0022] S11. The second adjustment motor starts, the second adjustment motor drives the second rotating gear to rotate, the second rotating gear drives the second annular toothed plate, the second annular toothed plate drives the outer ring block, the outer ring block drives the detection camera, and the detection camera captures images of the lithium battery pack from all directions.

[0023] S12. When the detection camera detects that the clamped lithium battery pack is not in the expected position, the third motor starts the second motor and the third motor. The third motor drives the rotating gear to rotate, and the rotating gear drives the moving toothed plate, the sliding frame and the rotating roller to move. The rotating roller contacts the lithium battery pack. The second motor drives the first transmission wheel, the transmission belt, the second transmission wheel and the rotating roller to rotate, and the rotating roller drives the lithium battery pack to move.

[0024] S41. Start the first adjustment motor. The first adjustment motor drives the first rotating gear, the first annular toothed plate, the inner ring block and the circumferential plate. The circumferential plate drives the clamping block and the lithium battery pack. The first electric push rod drives the lifting block and the clamping block to move upward. The rotating motor drives the rotating plate and the lithium battery pack to rotate, flipping the lithium battery pack and detecting other surfaces of the lithium battery pack.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] 1. This invention enables multi-directional impact testing of lithium battery packs by installing an arc-shaped frame, a moving frame, and a drive motor, overcoming the limitations of traditional unidirectional testing, improving the accuracy of safety risk assessment, and achieving failure simulation close to real-world scenarios;

[0027] 2. This invention achieves impact testing on multiple sides of the lithium battery pack by installing an inner ring block and a first adjustment motor, thus realizing comprehensive testing, improving product safety and reliability, and avoiding the one-sidedness of single-point testing;

[0028] 3. This invention enables impact testing of the bottom of lithium battery packs by installing a rotating motor, a rotating plate, and a testing camera, and achieves automatic flipping of the lithium battery packs on the testing platform. This solves the problem of manually flipping the lithium battery packs when performing bottom impact testing on testing equipment, and improves the safety of the testing process.

[0029] 4. This invention, by installing a second motor, a third motor, a sliding frame, and a rotating roller, achieves automatic adjustment of the testing position of the lithium battery pack, solving the problem that manual adjustment easily leads to clamping point offset and improving testing efficiency. Attached Figure Description

[0030] Figure 1 This is a front view structural diagram of the present invention;

[0031] Figure 2 This is a schematic cross-sectional view of the arc-shaped frame structure of the present invention;

[0032] Figure 3 This is a schematic cross-sectional view of the detection stage of the present invention;

[0033] Figure 4 This is a top view of the lifting block structure of the present invention;

[0034] Figure 5 This is a side view of the lifting plate structure of the present invention;

[0035] Figure 6 This is a cross-sectional view of the connector and impact plate of the present invention;

[0036] Figure 7 This is a schematic diagram of the side cross-sectional structure of the clamping block of the present invention;

[0037] Figure 8 This is a schematic diagram of the horizontal cross-sectional structure of the present invention.

[0038] In the diagram: 1. Detection table; 2. Arc-shaped frame; 3. Detection camera; 4. Inner ring block; 5. Outer ring block; 6. Circumferential plate; 7. Lifting block; 8. First electric push rod; 9. Second electric push rod; 10. Clamping block; 11. First adjusting motor; 12. First annular toothed plate; 13. First rotating gear; 14. Second adjusting motor; 15. Second annular toothed plate; 16. Second rotating gear; 17. Rotating plate; 18. Limiting groove; 19. Moving frame; 20. Connecting plate; 21. Lifting plate; 22. First motor; 23. First rotating rod; 24. Drive motor; 25. Moving gear; 26. Motor bracket; 27. Convex 28. Wheel; 29. ​​Driven plate; 30. Impact column; 31. Impact spring; 32. Connector; 33. Impact plate; 34. Impact head; 35. Arc groove; 36. Servo motor; 37. Electromagnet; 38. Permanent magnet; 39. Connection port; 40. Connection line; 41. Contact point; 42. Resistance wire; 43. Second motor; 44. First transmission wheel; 45. Transmission belt; 46. Third motor; 47. Rotating gear; 48. Moving toothed plate; 49. Sliding frame; 50. Synchronizing plate; 51. Rotating roller; 52. Second transmission wheel; 53. Second rotating rod; 54. Arc toothed plate; 55. Positioning groove; 56. Rotary motor. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] Please see Figure 1 , Figure 2 and Figure 5 An embodiment of the present invention provides a lithium battery component testing device, comprising a testing platform 1, on which a clamping block 10 and a rotating plate 17 are disposed. An arc-shaped frame 2 is fixedly connected to the top of the outer wall of the testing platform 1. An arc-shaped groove 34 is formed on the arc-shaped frame 2, which is movably fitted onto the outer wall of a movable frame 19. A drive motor 24 is disposed inside the movable frame 19. An arc-shaped toothed plate 53 is fixedly connected to the inner wall of the arc-shaped frame 2. A moving gear 25 is meshed on the side wall of the arc-shaped toothed plate 53. The drive motor 24 is connected to the moving gear 25 through a rotating shaft. A connecting plate 20 is fixedly connected to the bottom of the outer wall of the movable frame 19. The connecting plate 20 is connected to a first motor 22 through a first rotating rod 23. A lifting plate 21 is provided at the bottom of the impact column 29. The lifting plate 21 is movably fitted onto the outer wall of the impact column 29. A connecting body 31 is provided at the bottom of the impact column 29. An impact plate 32 is detachably connected to the bottom of the connecting body 31. An impact head 33 is provided at the bottom of the impact plate 32. The detection camera 3 is connected to a servo motor 35 via Bluetooth. The servo motor 35 is connected to a cam 27 via a rotating shaft. A driven plate 28 is fixedly connected to the top of the outer wall of the impact column 29. The driven plate 28 is in contact with the cam 27. An impact spring 30 is provided on the outer wall of the impact column 29. The impact spring 30 is located between the lifting plate 21 and the connecting body 31. A motor bracket 26 is fixedly connected to the outer wall of the servo motor 35. The lifting plate 21 is fixedly connected to the bottom of the outer wall of the motor bracket 26.

[0043] Next, the lithium battery pack to be tested is placed on the testing platform 1, and positioned between the two clamping blocks 10. The lithium battery pack is clamped and fixed by the rotating plate 17 on the clamping block 10. When the lithium battery pack is subjected to an impact test, the first motor 22 is started. The first motor 22 drives the first rotating rod 23 to rotate. The first rotating rod 23 is connected to the connecting plate 20 by a thread, thereby causing the first rotating rod 23 to move relative to the connecting plate 20. This causes the first rotating rod 23 to drive the first motor 22 and the lifting plate 21 to move, gradually moving the lifting plate 21 away from the connecting plate 20. Plate 20, connecting plate 20 drives impact column 29 and impact spring 30 to move, impact column 29 drives connecting body 31 to move, connecting body 31 drives impact plate 32 and impact head 33 to move, so that impact head 33 gradually approaches lithium battery pack. When detection camera 3 detects that impact head 33 is in contact with lithium battery pack casing, detection camera 3 shuts down first motor 22 and starts servo motor 35. Servo motor 35 on motor bracket 26 drives cam 27 to rotate through shaft, so that the long end of cam 27 faces driven plate 28, where the long end is cam 27. At the point on the profile furthest from its axis of rotation, the cam 27 profile reaches its maximum lift. The cam 27 drives the driven plate 28 away from the lifting plate 21. The driven plate 28 then moves the impact column 29 and the connecting body 31, causing the connecting body 31 to gradually approach the lifting plate 21, thereby compressing the impact spring 30 located between the lifting plate 21 and the connecting body 31. As the cam 27 continues to rotate, the cam 27 profile begins to fall back from its maximum lift point. The impact spring 30 releases its elastic potential energy, extends, and pushes the connecting body... 31. The impact plate 32 and impact head 33 move, causing the impact head 33 to impact the lithium battery pack. The servo motor 35 drives the cam 27 to rotate, causing the impact spring 30 to be repeatedly compressed and extended, thereby achieving periodic impact. The impact head 33 impacts the lithium battery pack, simulating the stress situation of the lithium battery pack in scenarios such as drop and collision. The detection camera 3 monitors the deformation and damage of the lithium battery pack shell in real time, and detects whether there is leakage, open flame or smoke on the surface of the battery pack, and judges whether the impact test of the lithium battery pack meets the relevant standards.

[0044] When adjusting the impact direction of the impact plate 32 and the impact head 33, the first motor 22 is controlled to reset the lifting plate 21, impact column 29, and other structures, preventing the lithium battery pack from affecting the adjustment of the impact head 33. The drive motor 24 is started, and it drives the moving gear 25 to rotate via a rotating shaft, causing the moving gear 25 to roll along the arc-shaped toothed plate 53. This causes the moving gear 25 to move the drive motor 24 and the moving frame 19, which in turn moves along the arc-shaped groove 34. The moving frame 19 then moves the connecting plate 20, which in turn moves the first rotating rod 23, the first motor 22, and the lifting plate 21. The lifting plate 21 then moves the impact column 29, the connecting body 31, the impact plate 32, and the impact head 33, thereby changing the angle between the impact head 33 and the horizontal plane, and consequently altering the impact of the impact head 33 during impact testing. After the orientation is adjusted, an impact test is performed using the same steps described above to check whether the lithium battery pack meets relevant standards. By adjusting the impact direction of the impact head 33, a multi-directional impact test is achieved. This multi-directional random impact test more realistically simulates the complex environment of the lithium battery pack, covering various working conditions that the lithium battery pack may encounter in actual use. For example, when an electric vehicle is driving on a bumpy road, the battery pack will be subjected to vibrations and impacts in multiple directions, including up and down, left and right, and front and back. During logistics transportation, the battery pack may be subjected to compression and impacts in different directions due to the stacking and handling of goods. At the same time, by applying impact forces to the lithium battery pack from different angles through multi-directional impact testing, it is easier to find weak points in the lithium battery pack structure, thereby facilitating manufacturers to identify and improve these problems in a timely manner and improve the overall structural strength of the lithium battery pack.

[0045] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 An embodiment of the present invention provides a lithium battery component testing device, comprising a movable frame 19, a drive motor 24, an arc-shaped toothed plate 53, a movable gear 25, a connecting plate 20, an impact column 29, an impact plate 32, and an impact head 33 on an arc-shaped frame 2; an inner ring block 4 is provided on the testing platform 1, a first annular toothed plate 12 is fixedly connected to the side wall of the inner ring block 4, a first rotating gear 13 is meshed with the side wall of the first annular toothed plate 12, a first adjusting motor 11 is fixedly installed inside the testing platform 1, the first adjusting motor 11 is connected to the first rotating gear 13 through a rotating shaft, a circumferential plate 6 is symmetrically fixedly connected to the top of the outer wall of the inner ring block 4, a first electric push rod 8 is fixedly connected to the top of the outer wall of the circumferential plate 6, a lifting block 7 is fixedly connected to the top of the outer wall of the first electric push rod 8, a second electric push rod 9 is symmetrically arranged on the lifting block 7, a clamping block 10 is fixedly connected to the side wall of the second electric push rod 9, and a rotating plate 17 is provided on the clamping block 10.

[0046] Furthermore, when the clamping block 10 and rotating plate 17 clamp and fix the lithium battery pack on the testing table 1, the second electric push rod 9 is activated, causing the clamping block 10 to move. The clamping block 10 then moves the rotating plate 17, gradually bringing the clamping block 10 and rotating plate 17 closer to the lithium battery pack. This allows the rotating plate 17 to contact the lithium battery pack, enabling the symmetrical rotating plate 17 to clamp and fix the lithium battery pack, thus facilitating subsequent impact testing. Additionally, before clamping the battery pack, the first electric push rod 8 is activated based on the height of the lithium battery pack. The first electric push rod 8 moves the lifting block 7 upwards or downwards, which in turn moves the second electric push rod 9, clamping block 10, and rotating plate 17 upwards or downwards. To ensure the lithium battery pack is properly positioned when held by the rotating plate 17, preventing instability, the first adjustment motor 11 is activated. This motor drives the first rotating gear 13 via a shaft, which in turn rotates the first annular toothed plate 12. The annular toothed plate 12 then rotates the inner ring block 4, which in turn rotates the circumferential plate 6. The circumferential plate 6 then rotates the first electric push rod 8 and the lifting block 7. The lifting block 7 then rotates the second electric push rod 9, the clamping block 10, and the rotating plate 17, thus rotating the lithium battery pack. After adjusting the position of the lithium battery pack, the system is activated. The drive motor 24 drives the moving gear 25 to roll on the arc-shaped toothed plate 53, thereby moving the moving frame 19, connecting plate 20, impact column 29, impact plate 32, and impact head 33, so that the impact head 33 faces the side of the lithium battery pack, and impact test is performed on the side of the lithium battery pack through the impact head 33; the position of the clamping block 10 and rotating plate 17 is adjusted by the first adjusting motor 11, thereby adjusting the position of the lithium battery pack held by the clamping block 10 and rotating plate 17, and by adjusting the impact direction of the impact head 33, random impact test is achieved on multiple sides of the lithium battery pack; the position of the clamping block 10 and rotating plate 17 relative to the lithium battery pack is adjusted by the first adjusting motor 11, and the impact test is performed on the side of the lithium battery pack. The lithium battery pack is clamped and subjected to impact testing on the clamping surface to further expand the testing range. This simulates unexpected impacts from any direction under extreme working conditions, detects the structural integrity of the lithium battery pack under complex stress, and determines whether it meets relevant standards. The lithium battery pack is adjusted remotely by the first adjustment motor 11, eliminating the need for manual adjustment by the testing personnel and ensuring their safety. By adjusting the relative position of the impact head 33 to the lithium battery pack, impact tests can be performed on all sides, top, and corners of the lithium battery pack. This achieves omnidirectional stress coverage to meet the impact tolerance requirements of lithium batteries in different industries, comprehensively assesses the safety of the lithium battery pack, and improves the realism of the simulated environment.

[0047] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 8 An embodiment of the present invention provides a lithium battery component testing device, comprising a movable frame 19, a drive motor 24, an arc-shaped toothed plate 53, a moving gear 25, a connecting plate 20, an impact column 29, an impact plate 32, and an impact head 33 on an arc-shaped frame 2; and an inner ring block 4, a circumferential plate 6, a lifting block 7, a first electric push rod 8, a second electric push rod 9, a clamping block 10, a first adjusting motor 11, a first annular toothed plate 12, a first rotating gear 13, and a rotating plate 17 on a testing platform 1; a rotating motor 55 is fixedly installed inside the clamping block 10, and the rotating motor 55 drives the rotating plate to rotate. A rotating plate 17 is connected to the shaft. A clamping block 10 is movably fitted on the outer wall of the rotating plate 17. An outer ring block 5 is movably installed on the detection table 1. A second annular toothed plate 15 is fixedly connected to the side wall of the outer ring block 5. A second rotating gear 16 is meshed on the side wall of the second annular toothed plate 15. The second rotating gear 16 is connected to a second adjusting motor 14 through a rotating shaft. The second adjusting motor 14 is fixedly installed inside the detection table 1. A detection camera 3 is fixedly connected to the top of the outer wall of the outer ring block 5. The detection camera 3 is connected to a first electric push rod 8, a first adjusting motor 11, a rotating motor 55, and a first motor 22 via Bluetooth.

[0048] Furthermore, the second electric push rod 9 drives the clamping block 10 and the rotating plate 17 to approach the lithium battery pack, clamping and fixing the lithium battery pack. This activates the first adjustment motor 11 and the second adjustment motor 14. The first adjustment motor 11 drives the first rotating gear 13 to rotate, which in turn drives the first annular toothed plate 12, the inner annular block 4, and the circumferential plate 6. The circumferential plate 6 then drives the first electric push rod 8, the lifting block 7, the second electric push rod 9, the clamping block 10, the rotating plate 17, and the lithium battery pack, ensuring that the lifting block 7 and the clamping block 10 are not in an arc shape. Below the frame 2, the second adjusting motor 14 drives the second rotating gear 16 to rotate, the second rotating gear 16 drives the second annular toothed plate 15, the second annular toothed plate 15 drives the outer ring block 5, and the outer ring block 5 drives the detection camera 3, enabling the detection camera 3 to capture images from all directions. When the detection camera 3 detects that the lifting block 7 and the clamping block 10 have moved to the appropriate position, it shuts off the first adjusting motor 11, that is, the position where the line connecting the centers of the two clamping blocks 10 is perpendicular to the arc frame 2, to avoid contact between the lifting block 7 and the arc frame 2 when adjusting the height; for the bottom of the lithium battery pack During the impact test, the first electric push rod 8 is activated, which moves the lifting block 7 upward. The lifting block 7 then moves the second electric push rod 9, the clamping block 10, and the rotating plate 17 upward. The rotating plate 17 moves the lithium battery pack upward. The detection camera 3 determines whether the lithium battery pack has reached the required height for flipping based on its size. When the lithium battery pack reaches the required height, the detection camera 3 closes the first electric push rod 8 and starts the rotating motor 55. The rotating motor 55 rotates the rotating plate 17, which in turn rotates the lithium battery pack, thus flipping it. After the detection camera 3 detects that the lithium battery pack has finished flipping, it closes the rotating motor 55 and resets the clamping block 10 and the rotating plate 17 via the first electric push rod 8, placing the lithium battery pack back on the detection table 1. The impact head 33 then impacts the lithium battery pack to conduct the impact test. The detection camera 3 determines whether the test meets the standards. By conducting impact testing on the bottom of the lithium battery pack, omnidirectional stress coverage is further achieved.

[0049] Please see Figure 1 , Figure 3 , Figure 7 and Figure 8One embodiment of the present invention provides a lithium battery component testing device. The testing platform 1 is equipped with an inner ring block 4, a circumferential plate 6, a first electric push rod 8, a second electric push rod 9, a clamping block 10, and a rotating plate 17. A sliding frame 48 is symmetrically arranged on the clamping block 10. A second motor 42 is fixedly connected to the sliding frame 48. The second motor 42 is connected to a first transmission wheel 43 via a rotating shaft. A transmission belt 44 is provided on the outer wall of the first transmission wheel 43. The transmission belt 44 is movably fitted onto the outer wall of the second transmission wheel 51. The second transmission wheel 51 is fixedly fitted onto the outer wall of the second rotating rod 52. The outer wall of the second rotating rod 52 is fixed... A rotating roller 50 is installed, and a sliding frame 48 is rotatably connected to the side wall of the second rotating rod 52. A movable toothed plate 47 is fixedly connected to the outer wall of the sliding frame 48, and a rotating gear 46 is meshed on the side wall of the movable toothed plate 47. A third motor 45 is installed inside the clamping block 10, and the third motor 45 is connected to the rotating gear 46 through a rotating shaft. The detection camera 3 is connected to the second motor 42 and the third motor 45 via Bluetooth. A synchronization plate 49 is fixedly connected to the side wall of the sliding frame 48, and a limit groove 18 is opened in the clamping block 10. The limit groove 18 is movably fitted on the outer wall of the synchronization plate 49. The sliding frame 48 is symmetrically arranged on both sides of the rotating plate 17.

[0050] Furthermore, the second electric push rod 9 drives the clamping block 10 and the rotating plate 17 to clamp the lithium battery pack. When the detection camera 3 determines that the lithium battery pack is not in the expected position, it controls the second electric push rod 9 to move the rotating plate 17 slightly away from the lithium battery pack, so that the rotating plate 17 no longer clamps and fixes the lithium battery pack. At this time, the detection camera 3 starts the second motor 42 and the third motor 45. The third motor 45 drives the rotating gear 46 to rotate, the rotating gear 46 drives the moving gear plate 47 to move, the moving gear plate 47 drives the sliding frame 48 to move, and the sliding frame 48 drives the synchronous plate 49 to move within the limiting groove 18. The synchronous plate 49 ensures... The sliding frame 48 moves synchronously and is limited in position. The sliding frame 48 drives the second rotating rod 52 and the rotating roller 50 to move, so that the rotating roller 50 contacts the lithium battery pack. The second motor 42 drives the first transmission wheel 43 to rotate, the first transmission wheel 43 drives the transmission belt 44, the transmission belt 44 drives the second transmission wheel 51 to rotate, the second transmission wheel 51 drives the second rotating rod 52, the second rotating rod 52 drives the rotating roller 50 to rotate, so that the rotating roller 50 drives the lithium battery pack to move. When the detection camera 3 detects that the lithium battery pack has moved to the appropriate position, the second motor 42 is turned off, and the third motor 4... 5. Reset the sliding frame 48. The second electric push rod 9 drives the clamping block 10 and rotating plate 17 to re-clamp the lithium battery pack. Furthermore, when the rotating roller 50 cannot move the lithium battery pack, the second electric push rod 9 drives the clamping block 10 and rotating roller 50 to clamp the lithium battery pack. The first electric push rod 8 drives the lifting block 7, clamping block 10, and lithium battery pack upwards, preventing the lithium battery pack from contacting the testing table 1. At this time, the second motor 42 drives the rotating roller 50 to rotate, thereby moving the battery pack and preventing it from contacting the testing table 1. Thus, when the rotating roller 50 moves the battery pack, there is no battery pack in contact with the testing table 1. Friction between the test platforms 1 acts as a barrier; by adjusting the position of the lithium battery pack on the test platform 1, impact tests can be performed on various positions of the lithium battery pack. At the same time, by adjusting the position of the lithium battery pack, the position of the lithium battery pack relative to the rotating plate 17 is changed. Then, the vertical position of the rotating plate 17 is adjusted by the first electric push rod 8. Thus, when the rotating plate 17 drives the lithium battery pack to rotate, it can be ensured that the rotating plate 17 is in the center of the lithium battery pack. This avoids the test camera 3 from misjudging the situation due to the rotating plate 17 not being in the center of the lithium battery pack, which could cause the lithium battery pack to collide with other equipment during the rotation process.

[0051] Please see Figure 1 , Figure 2 and Figure 6An embodiment of the present invention provides a lithium battery component testing device, wherein a lifting plate 21 is provided with a cam 27, an impact column 29, a driven plate 28, an impact spring 30, a connecting body 31, a servo motor 35, a motor bracket 26, and an impact head 33; an electromagnet 36 is provided at the bottom of the connecting body 31, and a positioning groove 54 is opened at the bottom of the connecting body 31; a permanent magnet 37 is provided at the top of the impact plate 32, and the positioning groove 54 is movably fitted on the outer wall of the permanent magnet 37; a connecting port 38 is provided on the side wall of the connecting body 31, a connecting wire 39 is fixedly connected to the side wall of the connecting port 38, and the connecting body 31 is provided on the outer wall of the connecting wire 39; a contact point 40 is provided at the top of the impact plate 32 of the connecting body 31, a resistance wire 41 is provided on the side wall of the contact point 40, and the impact plate 32 is provided on the outer wall of the resistance wire 41.

[0052] Furthermore, by turning off the energization of electromagnet 36, it no longer magnetically attracts permanent magnet 37. At this point, impact plate 32 and impact head 33 can be removed from connector 31 and replaced. When installing the required impact plate 32 and impact head 33, insert permanent magnet 37 on impact plate 32 into positioning slot 54 on connector 31, and energize electromagnet 36. Electromagnet 36 magnetically attracts permanent magnet 37, enabling quick replacement of impact head 33. By replacing impact plate 32 and impact head 33 with different counterweights or specifications, different tests can be adapted. To meet the requirements and simulate different impact scenarios, after the connector 31 and the impact plate 32 are installed and connected, the connecting wire 39 on the connector 31 contacts the contact point 40. At this time, the line between the connector 31 and the impact plate 32 is in a conductive state. Then, by connecting the power supply and the connector 38 through the wire, the connecting wire 39 is energized, thereby heating the resistance wire 41, and then heating the impact plate 32 and the impact head 33, realizing the combination of mechanical impact and temperature stress, thereby further simulating the thermomechanical coupling effect of the real use environment and improving the authenticity and rigor of the test.

[0053] Working principle: Before testing the lithium battery pack on the testing station 1, the position of the lithium battery pack is identified by the testing camera 3. The position of the clamping block 10 is adjusted by the first adjusting motor 11 and the second electric push rod 9 so that the clamping block 10 is parallel to the side of the lithium battery pack and close to the lithium battery pack. The third motor 45 drives the rotating gear 46, the moving toothed plate 47, and the sliding frame 48 to make the rotating roller 50 contact the lithium battery pack. The second motor 42 drives the rotating roller 50 to rotate, thereby moving the lithium battery pack and adjusting the position of the lithium battery pack.

[0054] After adjusting the position of the lithium battery pack, the second electric push rod 9 drives the second electric push rod 9 and the rotating plate 17 to clamp the lithium battery pack. The drive motor 24 is used to adjust the position of the moving frame 19 on the arc frame 2, thereby adjusting the position of the connecting plate 20, the lifting plate 21, the impact column 29, and the impact head 33. The drive motor 24 and the first motor 22 are started to bring the impact head 33 close to the lithium battery pack and perform an impact test.

[0055] When conducting impact tests on other sides of the lithium battery pack, the positions of the clamping block 10, the rotating plate 17, and the lithium battery pack are adjusted by the first adjusting motor 11. The first electric push rod 8 drives the lifting block 7, the clamping block 10, and the lithium battery pack to move upward. The rotating motor 55 and the rotating plate 17 drive the lithium battery pack to rotate, further adjusting the position of the lithium battery pack on the test platform 1.

[0056] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A lithium battery finished product inspection apparatus characterized by comprising: The utility model provides a kind of detection platform, including detection platform (1), the arc frame (2) is fixedly connected on the top of the outer wall of detection platform (1), the arc groove (34) is opened in the arc frame (2), the arc groove (34) is movably sleeved on the outer wall of moving frame (19), the driving motor (24) is arranged in the moving frame (19), the arc gear plate (53) is fixedly connected on the inner wall of the arc frame (2), the moving gear (25) is engagedly installed on the side wall of the arc gear plate (53), the driving motor (24) is connected with moving gear (25) by shaft, the connecting plate (20) is fixedly connected on the outer wall bottom of moving frame (19), the first motor (22) is connected with the first motor (22) by first rotating rod (23), the first motor (22) is provided with lifting plate (21), the lifting plate (21) is movably sleeved on the outer wall of impact column (29), the connecting body (31) is provided at the bottom of impact column (29), the impact plate (32) is detachably connected to the bottom of connecting body (31), the impact head (33) is provided at the bottom of impact plate (32); The inner ring block (4) is provided on the detection platform (1), the first annular gear plate (12) is fixedly connected on the side wall of the inner ring block (4), the first rotating gear (13) is engagedly installed on the side wall of the first annular gear plate (12), the first adjusting motor (11) is fixedly installed in the detection platform (1), the first adjusting motor (11) is connected with the first rotating gear (13) by shaft, the circumferential plate (6) is fixedly connected on the outer wall top of the inner ring block (4) symmetrically, the first electric push rod (8) is fixedly connected on the outer wall top of the circumferential plate (6), the lifting block (7) is fixedly connected on the outer wall top of the first electric push rod (8), the second electric push rod (9) is symmetrically provided on the lifting block (7), the clamping block (10) is fixedly connected on the side wall of the second electric push rod (9); The rotating motor (55) is fixedly installed in the clamping block (10), the rotating motor (55) is connected with rotating plate (17) by shaft, the rotating plate (17) is movably sleeved with clamping block (10), the outer ring block (5) is movably installed on the detection platform (1), the second annular gear plate (15) is fixedly connected on the side wall of the outer ring block (5), the second rotating gear (16) is engagedly installed on the side wall of the second annular gear plate (15), the second rotating gear (16) is connected with the second adjusting motor (14) by shaft, the second adjusting motor (14) is fixedly installed in the detection platform (1), the detection camera (3) is fixedly connected on the outer wall top of the outer ring block (5), the detection camera (3) is connected with first electric push rod (8), first adjusting motor (11), rotating motor (55) and first motor (22) by bluetooth; The clamping block (10) is symmetrically provided with a sliding frame (48), the sliding frame (48) is fixedly connected with a second motor (42), the second motor (42) is connected with a first transmission wheel (43) through a rotating shaft, the outer wall of the first transmission wheel (43) is provided with a transmission belt (44), the transmission belt (44) is movably sleeved on the outer wall of a second transmission wheel (51), the second transmission wheel (51) is fixedly sleeved on the outer wall of a second rotating rod (52), the outer wall of the second rotating rod (52) is fixedly installed with a rotating roller (50), the side wall of the second rotating rod (52) is rotatably connected with the sliding frame (48), the outer wall of the sliding frame (48) is fixedly connected with a moving gear plate (47), the side wall of the moving gear plate (47) is engagedly installed with a rotating gear (46), a third motor (45) is arranged in the clamping block (10), the third motor (45) is connected with the rotating gear (46) through a rotating shaft, and the detection camera (3) is connected with the second motor (42) and the third motor (45) through Bluetooth; The detection camera (3) is connected with a servo motor (35) through Bluetooth, the servo motor (35) is connected with a cam (27) through a rotating shaft, a driven plate (28) is fixedly connected to the top of the outer wall of the impact column (29), the driven plate (28) is in contact with the cam (27), the impact spring (30) is arranged on the outer wall of the impact column (29), the impact spring (30) is arranged between the lifting plate (21) and the connecting body (31), the outer wall of the servo motor (35) is fixedly connected with a motor support (26), and the bottom of the outer wall of the motor support (26) is fixedly connected with the lifting plate (21).

2. A lithium battery finished product inspection apparatus according to claim 1, characterized by: The connecting body (31) is provided with an electromagnet (36) at the bottom, a positioning groove (54) is formed in the bottom of the connecting body (31), a permanent magnet (37) is arranged on the top of the impact plate (32), and the outer wall of the permanent magnet (37) is movably sleeved with the positioning groove (54).

3. The lithium battery finished product detection device according to claim 1, wherein: The connecting body (31) is provided with a connecting port (38) on the side wall, the connecting port (38) is fixedly connected with a connecting line (39), the connecting line (39) is provided with the connecting body (31) on the outer wall, the connecting body (31) is provided with a contact point (40) on the top of the impact plate (32), the contact point (40) is provided with a resistance wire (41) on the side wall, and the resistance wire (41) is provided with the impact plate (32) on the outer wall.

4. The lithium battery finished product detection device according to claim 1, characterized in that: The sliding frame (48) is fixedly connected with a synchronous plate (49), a limiting groove (18) is formed in the clamping block (10), the outer wall of the synchronous plate (49) is movably sleeved with the limiting groove (18), and the sliding frame (48) is symmetrically arranged on both sides of the rotating plate (17).

5. A method for detecting a lithium battery product, which is suitable for the lithium battery product detection device of claim 1, characterized in that: The detection method comprises the following steps: S1, place the lithium battery to be detected on the detection table (1), start the second electric push rod (9), and the second electric push rod (9) is elongated, the second electric push rod (9) drives the clamping block (10) and the rotating plate (17) to approach the lithium battery to be detected, and the lithium battery is clamped and fixed; S2, start the driving motor (24), the driving motor (24) drives the moving gear (25) to rotate, the moving gear (25) moves along the arc-shaped toothed plate (53), the arc-shaped toothed plate (53), the driving motor (24) drives the moving frame (19) to move on the arc-shaped frame (2), the moving frame (19) drives the connecting plate (20), the lifting plate (21) to move, the position of the impact head (33) is adjusted; S3, start the first motor (22), the first motor (22) drives the first rotating rod (23) to rotate, the first rotating rod (23), the first motor (22) drives the lifting plate (21) to gradually move away from the connecting plate (20), the lifting plate (21) drives the impact column (29), the connecting body (31), the impact plate (32) and the impact head (33) to move, when the detection camera (3) detects that the impact head (33) is in contact with the lithium battery pack, the detection camera (3) closes the first motor (22) and starts the servo motor (35); S4, the servo motor (35) drives the cam (27) to rotate, the long end of the cam (27) faces the driven plate (28), the cam (27) drives the driven plate (28) to move away from the lifting plate (21), the driven plate (28) drives the impact column (29), the connecting body (31) to move, gradually compressing the impact spring (30), the cam (27) continues to rotate, the impact spring (30) releases the elastic potential energy, the impact spring (30) drives the connecting body (31), the impact plate (32) and the impact head (33), the impact head (33) impacts the lithium battery pack, and the detection camera (3) monitors the shell state of the lithium battery pack in real time.

6. The method of claim 5, wherein: The detection method further comprises the following steps: S11, the second adjusting motor (14) is started, the second adjusting motor (14) drives the second rotating gear (16) to rotate, the second rotating gear (16) drives the second annular toothed plate (15), the second annular toothed plate (15) drives the outer ring block (5), the outer ring block (5) drives the detection camera (3), and the detection camera (3) captures images of the lithium battery pack in all directions; S12, when the detection camera (3) detects that the clamped lithium battery pack is not in the expected position, the third motor (45) starts the second motor (42), the third motor (45), the third motor (45) drives the rotating gear (46) to rotate, the rotating gear (46) drives the moving toothed plate (47), the sliding frame (48) and the rotating roller (50) to move, the rotating roller (50) is in contact with the lithium battery pack, the second motor (42) drives the first transmission wheel (43), the transmission belt (44), the second transmission wheel (51) and the rotating roller (50) to rotate, and the rotating roller (50) drives the lithium battery pack to move; S41, start the first adjustment motor (11), the first adjustment motor (11) drive the first rotary gear (13), the first ring gear (12), the inner ring block (4) and the circumference plate (6), the circumference plate (6) drive the clamping block (10), the lithium battery pack, the first electric push rod (8) drive the lifting block (7), the clamping block (10) and move upward, the rotary motor (55) drive the rotary plate (17), the lithium battery pack rotates, and the lithium battery pack is turned over. Other surfaces of the lithium battery pack are detected.

Images