An automatic testing device for lithium battery protection plate

Abstract

The utility model provides a kind of lithium battery protection board automatic testing device, including tooling base, tooling main body being arranged on tooling base and first driving device and second driving device being arranged around the tooling main body, the tooling main body includes guide limit slot, function probe adapter plate and large current probe adapter plate being arranged above the guide limit slot, clip probe and PH-4 probe are arranged on the function probe adapter plate, large current probe is arranged on the large current probe adapter plate;The first driving device is connected with the function probe adapter plate, for driving the function probe adapter plate moves, drives the clip probe and PH-4 probe to compress or away from the test terminal of lithium battery protection board to be tested, the second driving device is connected with the large current probe adapter plate, for driving the large current probe adapter plate moves, drives the large current probe to compress or away from the test terminal of lithium battery protection board to be tested.

Description

Technical Field

[0001] This utility model relates to a testing device, specifically, to an automatic testing device for lithium battery protection boards. Background Technology

[0002] The HP16S100 series lithium battery protection board is an important component of low-voltage lithium battery modules. It is mainly used in systems such as 15-16 string lithium battery base station communication, backup power, and residential energy storage. It can monitor the operating status of the battery pack (voltage, current, temperature, etc.) to provide alarms and protection against overvoltage, undervoltage, overcurrent, overtemperature, and reverse connection. It can also provide cell equalization protection to extend cell life and can realize data monitoring, parameter configuration, and firmware upgrades through RS232, RS485, and CANBUS interfaces.

[0003] When testing HP16S100-10 series lithium battery protection boards, the production workshop and technical testing center typically use a method where test wiring personnel fabricate a large number of test leads based on the external output terminals of the HP16S100-10 product. Test operators then manually plug and unplug the test lead terminals and use tools to fix the test lead mounting screws to connect and test the product. This conventional manual testing method is cumbersome and labor-intensive due to the large number of product terminals, which requires connecting a large number and variety of test leads. The manual plugging and unplugging operations are prone to errors such as incorrect insertion, missing insertion, and loose connection, resulting in a high test error rate and low testing efficiency.

[0004] In addition, during the testing of the HP16S100-10 series lithium battery protection board, a large current of hundreds of amperes will be generated. The test leads are long and thick. Conventional manual testing methods do not have safety protection measures. When the test operators use tools and screwdrivers to install and remove the several high-current fixing screws of the test product, there is a high risk of accidental contact, which will pose a personal safety hazard to the test operators.

[0005] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing an automatic testing device for lithium battery protection boards.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is: an automatic testing device for lithium battery protection boards, including a fixture base, a fixture body disposed on the fixture base, and a first driving device and a second driving device disposed around the fixture body. The fixture body includes a guide limiting groove, a functional probe adapter plate disposed above the guide limiting groove, and a high-current probe adapter plate. The functional probe adapter plate is provided with a clip probe and a PH-4 probe, and the high-current probe adapter plate is provided with a high-current probe. The first driving device is connected to the functional probe adapter plate and is used to drive the functional probe adapter plate to move, thereby causing the clamp probe and PH-4 probe to press against or move away from the test terminals of the lithium battery protection board to be tested. The second driving device is connected to the high current probe adapter plate and is used to drive the high current probe adapter plate I to move, thereby causing the high current probe to press against or move away from the test terminals of the lithium battery protection board to be tested.

[0008] Beneficial effects: This utility model uses three driving devices to drive the movement of three probe adapter plates, which in turn cause the probes on them to press against the test terminals of the lithium battery protection board to be tested, thus replacing the manual work of plugging and unplugging a large number of test wires. The entire testing process frees up the hands of the test operators, greatly improving the convenience and safety of operation. In addition, the driving devices and probes press against the terminal blocks of the lithium battery protection board of the test product, resulting in high compression accuracy and improving the accuracy and efficiency of testing.

[0009] Furthermore, for ease of control, the high-current probe adapter plate includes a high-current probe adapter plate I and a high-current probe adapter plate II, and the second driving device includes a driving device I and a driving device II. The driving device I is connected to the high-current probe adapter plate I and is used to drive the high-current probe adapter plate I to move; the driving device II is connected to the high-current probe adapter plate II and is used to drive the high-current probe adapter plate II to move.

[0010] Furthermore, one side of the top surface of the guide limiting groove is a slope that slopes downwards from the outside to the inside. This slope facilitates the placement of the lithium battery protection board to be tested into the guide limiting groove.

[0011] Furthermore, in order to fix the lithium battery protection board under test at a specific position in the guide limiting groove so that the terminal block on the lithium battery protection board under test can contact the probes on the functional probe adapter board, the high current probe adapter board I and the high current probe adapter board II, a feed pin is provided on the guide limiting groove. In use, the feed pin connects with the mounting hole on the lithium battery protection board to achieve preliminary coarse positioning.

[0012] Furthermore, the functional probe adapter board and the high-current probe adapter board I are located above the other side of the guide limiting groove opposite to the slope. The functional probe adapter board is configured to correspond to the functional interface terminals of the lithium battery protection board under test, and the high-current probe adapter board I is configured to correspond to one side interface terminal of the battery module of the lithium battery protection board under test. The high-current probe adapter board II is configured above one end of the guide limiting groove, and the high-current probe adapter board II is configured to correspond to the other side interface terminal of the battery module of the lithium battery protection board under test.

[0013] As can be seen, different probes and corresponding probe adapters are set for different types of test terminals at different locations on the lithium battery protection board under test, which can achieve accurate testing.

[0014] Furthermore, since a large current is generated during the testing process, in order to protect the personal safety of the testing operators, the fixture base is also equipped with a first insulating protective cover, a second insulating protective cover, and a third insulating protective cover. The first insulating protective cover covers the functional probe adapter plate and the high-current probe adapter plate I; the second insulating protective cover covers the high-current probe adapter plate II; and the third insulating protective cover is located on the fixture base at one end opposite to the second insulating protective cover.

[0015] Preferably, the first insulating protective cover, the second insulating protective cover, and the third insulating protective cover are all sheet metal insulating protective covers.

[0016] Furthermore, due to the large size of the testing device, folding handles are provided on both the second and third insulating protective covers to facilitate the movement and handling of the testing device.

[0017] This utility model has substantial features and progress compared to the prior art. Specifically, This invention uses three driving devices to move three probe adapter plates, which in turn cause the probes on the plates to press against the test terminals of the lithium battery protection board to be tested, thus replacing the manual work of plugging and unplugging a large number of test lines. The entire testing process frees up the hands of the test operators and greatly improves the convenience and safety of operation. This invention uses three driving devices and three probe adapters to press and contact the terminal blocks of the lithium battery protection board of the test product, resulting in high compression accuracy and improved testing accuracy and efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the automatic testing device for lithium battery protection board described in Embodiment 1 of this utility model.

[0019] Figure 2 yes Figure 1 The diagram shows the structure after removing the functional probe adapter board, high-current probe adapter board I, and high-current probe adapter board II.

[0020] Figure 3 This is a schematic diagram of the structure of the automatic testing device for lithium battery protection board described in Embodiment 2 of this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the automatic testing device for lithium battery protection board described in Embodiment 3 of this utility model.

[0022] Figure 5 This is a utility model Figure 4 A schematic diagram of the structure after removing the first insulating protective cover, the second insulating protective cover, and the third insulating protective cover.

[0023] Figure 6 This is a schematic diagram of the rising working state of the automatic testing device for lithium battery protection board of this utility model.

[0024] Figure 7 This utility model is in Figure 5 A schematic diagram showing the lithium battery protection board to be tested placed in the test state.

[0025] Figure 8 This is a schematic diagram of the pressing working state of the automatic testing device for lithium battery protection board of this utility model.

[0026] In the diagram: 1. Fixture base; 2. Fixture body; 3. Lithium battery protection board to be tested; 4. Functional probe adapter board; 5. High current probe adapter board I; 6. High current probe adapter board II; 7. Clamping probe; 8. PH-4 probe; 9. High current probe; 10. Air pipe adapter; 11. Throttling valve; 12. Positioning pin; 13. Feed pin; 14. First insulating protective cover; 15. Second insulating protective cover; 16. Third insulating protective cover; 17. Folding handle; 18. Start button; 19. Stop button; 20. Ultra-thin cylinder with guide rod; 21. Rotary clamping cylinder; 22. Solenoid valve; 23. Silencer; 24. Pipe connector; 25. Solenoid valve base; 26. Guide limit groove. Detailed Implementation

[0027] This embodiment provides an automatic testing device for lithium battery protection boards, such as... Figure 1-2As shown, the fixture includes a fixture base 1, a fixture body 3 disposed on the fixture base 1, and a first driving device, a driving device I, and a driving device II disposed around the fixture body 3. The fixture body 3 includes a guide limiting groove 26, a functional probe adapter plate 4 disposed above the guide limiting groove 26, a high current probe adapter plate I5, and a high current probe adapter plate II6. The functional probe adapter plate 4 is provided with a clip probe 7 and a PH-4 probe 8, and the high current probe adapter plate I5 and the high current probe adapter plate II6 are provided with high current probes 9.

[0028] The first driving device is connected to the functional probe adapter plate 4 and is used to drive the functional probe adapter plate 4 to move, thereby causing the clamp probe 7 and PH-4 probe 8 to press against or move away from the functional test terminals of the lithium battery protection board 3 under test. Specifically, the PH-4 probe 8 is used to accurately measure the high-speed data signal on the chip pin of the lithium battery protection board; the clamp probe is used for general electrical measurements, such as measuring whether the static voltage detection at each point is normal, monitoring the current, and performing routine overcharge, over-discharge, and overcurrent protection function tests, etc.

[0029] The driving device I is connected to the high-current probe adapter plate I5 and is used to drive the high-current probe adapter plate I5 to move, causing the high-current probe 9 to press against or move away from a set of test terminals of the battery module of the lithium battery protection board under test. The driving device II is connected to the high-current probe adapter plate II6 and is used to drive the high-current probe adapter plate II6 to move, causing the high-current probe 9 to press against or move away from another set of test terminals of the battery module of the lithium battery protection board 3 under test. In use, the high-current probe 9 is used to measure high current and verify the performance and protection threshold of the lithium battery protection board under high current conditions. The specific test method is the same as the manual test method mentioned in the background art, and will not be described in detail here.

[0030] Furthermore, the automatic testing device for the lithium battery protection board is equipped with a start button 18 and a stop button 19. The start button 18 and the stop button 19 are electrically connected to the first driving device, the driving device I, and the driving device II, respectively, to control the start and stop of the first driving device, the driving device I, and the driving device II.

[0031] Furthermore, the tooling base 1 is also provided with a solenoid valve base 25, on which three solenoid valves 22 are installed. The three solenoid valves 22 are respectively connected to the first driving device, the driving device I and the driving device II.

[0032] Furthermore, both the first driving device and the driving device I are ultra-thin cylinders 20 with guide rods; the driving device II is a rotary clamping cylinder 21. At this time, the three solenoid valves 22 are respectively connected to the first driving device, the driving device I, and the driving device II via air passages. Specifically, each driving device is equipped with an air pipe adapter 10 and a throttle valve 11, which are connected to the corresponding solenoid valve 22. Furthermore, a silencer 23 is also provided at the solenoid valve 22.

[0033] It is understood that the automatic testing device for the lithium battery protection board is also equipped with an output terminal connector and a pipe connector 24. The pipe connector 24 connects each solenoid valve 22 to the external air path; the output terminal connector connects to the output terminal interface and the aviation plug interface of the test bench.

[0034] The working principle of this utility model is as follows: Before use, the testing device is moved and placed on the testing station in the workshop. The output terminal connector and pipe connector 24 of the testing device are connected to the output terminal interface, aviation plug interface and external air circuit of the testing station. Power and air are supplied to the testing device, and the air pipe circuit of the ultra-thin cylinder with guide rod 20 and the rotary clamping cylinder 21 are connected. The two ultra-thin cylinders with guide rod 20 work, driving the functional probe adapter plate 4, clamping probe 7 and PH-4 probe 8, high current probe adapter plate I5 and high current probe 9 to rise together. At the same time, the rotary clamping cylinder 21 works to drive the high current probe adapter plate II6 and high current probe 9 to rotate and rise until each probe adapter plate and probe is in the initial highest state.

[0035] The test product is pushed horizontally into the guide limiting groove 26. The start button 18 is pressed, and the three solenoid valves 22 are activated, driving the two ultra-thin cylinders 20 with guide rods to work simultaneously. This causes the functional probe adapter plate 4, clamping probe 7, PH-4 probe 8, high current probe adapter plate I5, and high current probe 9 to contact and press down together. At the same time, the rotary clamping cylinder 21 is activated, causing the high current probe adapter plate II6 and high current probe 9 to rotate and press down.

[0036] When the functional probe adapter plate 4, the high-current probe adapter plate I5, and the high-current probe adapter plate II6 are screwed onto the test terminals of the lithium battery protection board 3 to be tested, and when the clamp probe 7, the PH-4 probe 8, and the high-current probe 9 are all in contact with the test points on the terminal block of the lithium battery protection board 3 to be tested, the test bench automatically tests the lithium battery protection board 3 to be tested through the output terminal interface and the aviation plug interface based on the built-in automatic test program. If there are no errors or alarms during the test, after the test process is completed, the three solenoid valves 22 are turned on, driving the two ultra-thin cylinders 20 with guide rods to work simultaneously, driving the functional probe adapter plate 4, clamp probe 7, PH-4 probe 8, high-current probe adapter plate I5, and high-current probe 9 to rise together; at the same time, the rotary clamping cylinder 21 is driven to work, driving the high-current probe adapter plate II6 and high-current probe 9 to rotate and rise until each probe adapter plate and probe is in the initial highest state and then stops. Then the test operator takes out the lithium battery protection board 3 to be tested, and the test process ends.

[0037] Throughout the process, three drive devices drive the movement of three probe adapter plates, causing the probes on them to press against the test terminals of the lithium battery protection board 3 to be tested. This eliminates the need for manual insertion and removal of a large number of test leads, freeing up the hands of the test operators and greatly improving the ease of operation and safety. In addition, the drive devices and probes press against the terminal blocks of the lithium battery protection board of the test product, resulting in high compression accuracy and improved test accuracy and efficiency.

[0038] It should be noted that if an emergency stop is required during the test, press the stop button 19 as described above.

[0039] Example 2 The difference between this embodiment and Embodiment 1 is that, as Figure 3 As shown, the specific implementation structure of the guide limiting groove 26 is given.

[0040] In this specific implementation, one side of the top surface of the guide limiting groove 26 is a slope that slopes downwards from the outside to the inside. The slope facilitates the placement of the lithium battery protection board 3 to be tested into the guide limiting groove 26.

[0041] In order to fix the lithium battery protection board 3 to be tested at a specific position in the guide limiting groove 26 so that the terminal block on the lithium battery protection board 3 to be tested can contact the probes on the functional probe adapter board 4, the high current probe adapter board I5 and the high current probe adapter board II6, a feed pin 13 is provided on the guide limiting groove 26 corresponding to the mounting hole on the lithium battery protection board. In use, the feed pin 13 connects with the mounting hole on the lithium battery protection board to achieve preliminary coarse positioning.

[0042] Furthermore, the functional probe adapter plate 4 and the high-current probe adapter plate I5 are located above the other side of the guide limiting groove 26 away from the slope. The functional probe adapter plate 4 is configured to correspond to the functional interface terminal of the lithium battery protection board 3 under test, and the high-current probe adapter plate I5 is configured to correspond to the second type of interface terminal of the lithium battery protection board 3 under test. The high-current probe adapter plate II6 is configured above one end of the guide limiting groove 26, and the high-current probe adapter plate II6 is configured to correspond to the battery module interface terminal of the lithium battery protection board 3 under test.

[0043] Different types of test terminals at different positions on the lithium battery protection board 3 correspond to different probes and corresponding probe adapter boards, enabling precise testing of specific test terminals.

[0044] Example 3 The difference between this embodiment and Embodiment 1 or Embodiment 2 is that: like Figure 4-8 As shown, the tooling base 1 is also provided with a first insulating protective cover 14, a second insulating protective cover 15 and a third insulating protective cover 16. The first insulating protective cover 14 covers the functional probe adapter plate 4 and the high current probe adapter plate I5; the second insulating protective cover 15 covers the high current probe adapter plate II6; and the third insulating protective cover 16 is disposed on the tooling base 1 at one end away from the second insulating protective cover 15.

[0045] Preferably, the start button 18 and the stop button 19 are disposed on the second insulating protective cover 15.

[0046] By setting the first insulating protective cover 14, the second insulating protective cover 15 and the third insulating protective cover 16 around the main body of the tooling 3 to cover the functional probe adapter plate 4, the high current probe adapter plate I5 and the high current probe adapter plate II6, the high current generated during the test is blocked, and the personal safety of the test personnel is protected.

[0047] Preferably, the first insulating protective cover 14, the second insulating protective cover 15, and the third insulating protective cover 16 are all sheet metal insulating protective covers. Preferably, sheet metal insulating protective covers are commonly made of materials such as stainless steel, aluminum alloy, and carbon steel. When selecting materials, factors such as the operating environment and requirements of the protective cover, as well as manufacturing costs and efficiency, need to be considered.

[0048] The working principle of this utility model is as follows: Before use, the testing device is moved and placed on the testing station in the workshop. The test lines of the testing device are connected to the output terminal interface and the aviation plug interface of the testing platform. Power and air are supplied to the testing device. The air pipe circuit of the ultra-thin cylinder 20 with guide rod and the rotary clamping cylinder 21 are ventilated and start working, driving the functional probe adapter plate 4, the clamping probe 7, the PH-4 probe 8, the high current probe adapter plate I5, and the high current probe 9 to rise together. At the same time, the air pipe circuit of the rotary clamping cylinder 21 is ventilated and starts working, driving the high current probe adapter plate II6 and the high current probe 9 to rotate and rise until each probe adapter plate and probe is in the initial highest state.

[0049] Remove the first insulating protective cover 14, the second insulating protective cover 15, and the third insulating protective cover 16, and then push the test product horizontally into the guide limiting groove 26 (see...). Figure 7 Then, the first insulating protective cover 14, the second insulating protective cover 15, and the third insulating protective cover 16 are respectively placed on the corresponding positions.

[0050] Pressing the start button 18 activates the three solenoid valves 22, which in turn drive the two ultra-thin cylinders 20 with guide rods to work simultaneously. This causes the functional probe adapter plate 4, clamping probe 7, PH-4 probe 8, high-current probe adapter plate I5, and high-current probe 9 to contact and press down together. At the same time, the rotary clamping cylinder 21 is activated, causing the high-current probe adapter plate II6 and high-current probe 9 to rotate and press down.

[0051] When the functional probe adapter board 4, the high-current probe adapter board I5, and the high-current probe adapter board II6 are screwed onto the test terminals of the lithium battery protection board 3 to be tested (see...) Figure 8 When the clamping probe 7, the PH-4 probe 8, and the high-current probe 9 are all in contact with the test points on the terminal block of the lithium battery protection board 3 under test, the test bench automatically tests the lithium battery protection board 3 under test through the output terminal interface and the aviation plug interface based on the built-in automatic test program. If there are no errors or alarms during the test, after the test process is completed, the three solenoid valves 22 are turned on and work, driving the two ultra-thin cylinders 20 with guide rods to work simultaneously, driving the functional probe adapter plate 4, clamping probe 7, PH-4 probe 8, high-current probe adapter plate I5, and high-current probe 9 to rise together; at the same time, the rotary clamping cylinder 21 is driven to work, driving the high-current probe adapter plate II6 and high-current probe 9 to rotate and rise until each probe adapter plate and probe is in the initial highest state and then stops.

[0052] Remove the first insulating protective cover 14, the second insulating protective cover 15, and the third insulating protective cover 16. The test operator takes out the lithium battery protection board 3 to be tested. The test process is over. Then, the first insulating protective cover 14, the second insulating protective cover 15, and the third insulating protective cover 16 are respectively placed on the corresponding positions.

[0053] It is understood that the height of the first insulating protective cover 14, the second insulating protective cover 15, and the third insulating protective cover 16 is higher than the highest point of the functional probe adapter plate 4, the high current probe adapter plate I5, and the high current probe adapter plate II6, thereby enabling the functional probe adapter plate 4, the high current probe adapter plate I5, and the high current probe adapter plate II6 to move up and down within the first insulating protective cover 14, the second insulating protective cover 15, and the third insulating protective cover 16.

[0054] Furthermore, the tooling base 1 is also provided with positioning pins corresponding to the first insulating protective cover 14, the second insulating protective cover 15 and the third insulating protective cover 16. Preferably, the positioning pins are fully threaded to facilitate the installation of the first insulating protective cover 14, the second insulating protective cover 15 and the third insulating protective cover 16.

[0055] Furthermore, due to the large size of the testing device, folding handles 17 are provided on both the second insulating protective cover 15 and the third insulating protective cover 16 to facilitate the movement and handling of the testing device.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. An automatic testing device for lithium battery protection boards, characterized in that: The tooling includes a tooling base, a tooling body disposed on the tooling base, and a first driving device and a second driving device disposed around the tooling body. The tooling body includes a guide limiting groove, a functional probe adapter plate disposed above the guide limiting groove, and a high current probe adapter plate. The functional probe adapter plate is provided with a clip probe and a PH-4 probe, and the high current probe adapter plate is provided with a high current probe. The first driving device is connected to the functional probe adapter plate and is used to drive the functional probe adapter plate to move, thereby causing the clamp probe and PH-4 probe to press against or move away from the test terminals of the lithium battery protection board to be tested. The second driving device is connected to the high-current probe adapter plate and is used to drive the high-current probe adapter plate to move, thereby causing the high-current probe to press against or move away from the test terminal of the lithium battery protection board to be tested.

2. The automatic testing device for a lithium battery protection board according to claim 1, characterized in that: One side of the top surface of the guide limiting groove is a slope that slopes downward from the outside to the inside, and a feed pin is provided on the guide limiting groove corresponding to the mounting hole on the lithium battery protection plate.

3. The automatic testing device for a lithium battery protection board according to claim 2, characterized in that: The high-current probe adapter plate includes a high-current probe adapter plate I and a high-current probe adapter plate II. The second driving device includes a driving device I and a driving device II. The driving device I is connected to the high-current probe adapter plate I and is used to drive the high-current probe adapter plate I to move. The driving device II is connected to the high-current probe adapter plate II and is used to drive the high-current probe adapter plate II to move.

4. The automatic testing device for a lithium battery protection board according to claim 3, characterized in that: The functional probe adapter board and the high-current probe adapter board I are located above the other side of the guide limiting groove opposite to the slope. The functional probe adapter board is configured to correspond to the functional interface terminals of the lithium battery protection board under test, and the high-current probe adapter board I is configured to correspond to one side interface terminal of the battery module of the lithium battery protection board under test. The high-current probe adapter board II is configured above one end of the guide limiting groove, and the high-current probe adapter board II is configured to correspond to the other side interface terminal of the battery module of the lithium battery protection board under test.

5. The automatic testing device for a lithium battery protection board according to claim 4, characterized in that: The tooling base is also provided with a first insulating protective cover, a second insulating protective cover and a third insulating protective cover. The first insulating protective cover covers the functional probe adapter plate and the high current probe adapter plate I; the second insulating protective cover covers the high current probe adapter plate II; and the third insulating protective cover is located on the tooling base at one end away from the second insulating protective cover.

6. The automatic testing device for a lithium battery protection board according to claim 5, characterized in that: The first insulating protective cover, the second insulating protective cover, and the third insulating protective cover are all sheet metal insulating protective covers.

7. The automatic testing device for a lithium battery protection board according to claim 6, characterized in that: Both the second and third insulating protective covers are equipped with folding handles.

8. An automatic testing device for a lithium battery protection board according to claim 6 or 7, characterized in that: The second insulating protective cover is provided with a start button and a stop button, which are electrically connected to the first driving device, the driving device I and the driving device II, respectively.

9. An automatic testing device for a lithium battery protection board according to claim 3, characterized in that: The tooling base is also provided with a solenoid valve base, on which three solenoid valves are installed. The three solenoid valves are respectively connected to the first driving device, the driving device I and the driving device II.

10. An automatic testing device for a lithium battery protection board according to claim 9, characterized in that: Both the first driving device and the driving device I are ultra-thin cylinders with guide rods; the driving device II is a rotary clamping cylinder.

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