A multi-channel short circuit testing device and method for blade battery

Abstract

The application provides a kind of blade battery multichannel short circuit testing device, comprising: test switch, short circuit tester, control module, man-machine operation interface, test circuit and test fixture;Test fixture includes mounting plate, for installing test mechanism and positioning the measured battery;Test mechanism includes telescopic mechanism, connecting block and test probe, telescopic mechanism drives connecting block to move, connecting block is installed test probe, test probe is contacted with the test site of measured battery, and test loop is formed with short circuit tester through test circuit;Control module is electrically connected with man-machine operation interface, short circuit tester and telescopic mechanism, and automatically executes short circuit test.The application also provides a kind of blade battery multichannel short circuit testing method.The application has simple structure, convenient operation, has multichannel testing capacity, strong compatibility, improves the safety of personnel operation and ensures the accuracy of test result simultaneously.

Description

Technical Field

[0001] This invention relates to the field of battery production testing equipment, and in particular to a multi-channel short-circuit testing device and method for blade batteries. Background Technology

[0002] Currently, in blade battery experimental lines, handheld test probes are often used for short-circuit testing to quickly check for internal short circuits within the cells. The pulse Hi-pot testers currently used have a voltage range of 60–2000V, with standard test settings between 120–1000V, and in special cases, voltages exceeding 1000V may be used. Therefore, manual testing carries a high safety risk. Furthermore, the test results are also subject to error due to testing techniques, such as poor contact between the test probes and the cell.

[0003] Due to the unique nature of its manufacturing process, blade batteries require short-circuit testing of bare cells after lamination and hot pressing during the cell assembly stage. Short-circuit testing is also required after the negative electrode is placed in the casing, including between the positive electrode tab and the negative electrode top cover, between the negative electrode post and the casing, between the positive and negative electrode posts after a helium leak test, between the positive electrode post and the aluminum casing, and between the positive and negative electrode posts after electrolyte filling. Therefore, the numerous short-circuit testing points during blade battery assembly necessitate frequent manual parameter setting, posing safety hazards for personnel and raising concerns about the accuracy of test results. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a multi-channel short-circuit testing device and method for blade batteries, which solves the problems in the existing technology of blade battery assembly and production process where there are many short-circuit testing process points, the testing process requires frequent manual setting of test parameters, and there are certain safety hazards for personnel operation and inaccuracy of test results.

[0005] To achieve the above and other related objectives, the present invention provides a multi-channel short-circuit testing device for blade batteries, the testing device comprising: a test switch, a short-circuit tester, a control module, a human-machine interface, test circuitry, and test fixtures;

[0006] The test fixture includes a mounting plate for mounting the test mechanism and positioning the battery cell under test;

[0007] The testing mechanism includes a telescopic mechanism, a connecting block, and a test probe. The telescopic mechanism drives the connecting block to move. The test probe is installed on the connecting block. The test probe contacts the test part of the battery cell under test and forms a test circuit with the short-circuit tester through the test line.

[0008] The control module is electrically connected to the human-machine interface, the short-circuit tester, and the telescopic mechanism.

[0009] The human-machine interface allows selection of test items. The control module controls the telescopic mechanism to move the test probe to the predetermined test position according to the test item content. The short-circuit tester is responsible for short-circuit testing and issues test results.

[0010] In one embodiment of the present invention, the telescopic mechanism is a cylinder, and the test probe includes a first test probe, a second test probe, a third test probe, and a fourth test probe, with the corresponding cylinders driving the movement of the test probes being a first cylinder, a second cylinder, a third cylinder, and a fourth cylinder, respectively; the first test probe and the second test probe move vertically, and the third test probe and the fourth test probe move horizontally, respectively aligning with different test parts of the battery cell under test during the test.

[0011] In one embodiment of the present invention, a fifth cylinder is also provided, which is connected to the first cylinder and the second cylinder simultaneously through a horizontal connecting plate, and controls the vertical movement of the first cylinder and the second cylinder to increase the range of motion of the first probe and the second probe.

[0012] In one embodiment of the present invention, the fifth cylinder and the connecting plate are connected by a guide rail and a slider.

[0013] In one embodiment of the present invention, the mounting plate includes a vertical mounting plate and a horizontal mounting plate. The vertical mounting plate is used to mount the first cylinder, the second cylinder and the fifth cylinder, and the horizontal mounting plate is used to mount the third cylinder, the fourth cylinder, the test switch and the cell positioning block.

[0014] In one embodiment of the present invention, the mounting plate also includes a line transfer strip for electrical connection between the short-circuit tester and the test probe, and between the control module and the telescopic mechanism.

[0015] In one embodiment of the present invention, the test switch is a dual-start button, and the test begins when both buttons are in the start state.

[0016] In one embodiment of the present invention, the control module presets control parameters for various test combinations.

[0017] In one embodiment of the present invention, the test combination includes at least: short circuit test of bare cell after stacking, short circuit test between positive electrode tab and negative electrode post of cell after casing, short circuit test between negative electrode post of cell and casing after casing, short circuit test between positive and negative electrode posts after one helium detection, short circuit test between positive electrode post and casing after one helium detection, and short circuit test between positive and negative electrode posts after liquid filling.

[0018] The present invention also provides a multi-channel short-circuit test method for blade batteries, using the multi-channel short-circuit test device for blade batteries described in any of the above embodiments, the test steps including:

[0019] The operator selects a test item on the human-machine interface.

[0020] In the repositioning step, the control module calls the preset parameters corresponding to the test item and controls the telescopic mechanism to drive the test probe to reposition.

[0021] Place the battery cell to be tested into the test position;

[0022] The control module is activated to control the corresponding test probe to contact the test part of the battery cell under test;

[0023] The short-circuit tester issues a test result and returns to the reset step;

[0024] If you need to reselect a test item, return to the selection steps described above.

[0025] As described above, the multi-channel short-circuit testing device and method for blade batteries of the present invention have the following advantages: simple structure, convenient operation, multi-channel testing capability, strong compatibility, and can meet the short-circuit testing requirements of the entire blade battery cell assembly and production process; automatic testing by the equipment improves the safety of personnel operation and ensures the accuracy of test results. Attached Figure Description

[0026] Figure 1 The diagram shown is a schematic of the multi-channel short-circuit test device for the blade battery of the present invention.

[0027] Figure 2 This diagram illustrates the conventional assembly process route for blade batteries.

[0028] Figure 3 The diagram shows a short-circuit test of the battery cell after hot pressing.

[0029] Figure 4 This diagram illustrates a short-circuit test between the positive and negative terminals.

[0030] Figure 5 The diagram shows a short-circuit test between the negative terminal and the casing.

[0031] Figure 6 This diagram illustrates a short-circuit test between the positive and negative terminals.

[0032] Figure 7 The diagram shows a short-circuit test between the positive terminal and the casing.

[0033] Component designation explanation

[0034] Human-machine interface 1; Control module 2; Short circuit tester 3; Test circuit 4; Circuit transfer panel 5; Control circuit 6; Vertical mounting plate 7; Fifth cylinder 8; Connecting plate 9; First cylinder 10; First probe mounting plate 11; First test probe 12; Fourth cylinder 13; Fourth probe mounting plate 14; Fourth test probe 15; Cell positioning block 16; Dual start button 17; Fastening screw 18; Guide rail 19; Slider 20; Second cylinder 21; Second probe mounting plate 22; Second test probe 23; Third cylinder 24; Third probe mounting plate 25; Third test probe 26; Cell 27; Horizontal mounting plate 28. Detailed Implementation

[0035] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other. It should also be understood that the terminology used in the embodiments of the present invention is for describing specific implementation schemes and not for limiting the scope of protection of the present invention. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0036] Please see Figures 1 to 7 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness or purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0037] Please see Figure 1This invention provides a multi-channel short-circuit testing device for blade batteries. The device includes: a test switch, a short-circuit tester 3, a control module 2, a human-machine interface 1, test circuitry, and a test fixture. The test fixture includes a mounting plate for mounting the test mechanism and positioning the battery cell 27 under test. The test mechanism includes a telescopic mechanism and a connecting block. The telescopic mechanism drives the connecting block to move, and a test probe is mounted on the connecting block. The test probe contacts the test portion of the battery cell 27 and forms a test circuit with the short-circuit tester through the test circuitry. The control module 2 is electrically connected to the human-machine interface 1, the short-circuit tester 3, and the telescopic mechanism. The human-machine interface 1 allows selection of test items. The control module 2 controls the telescopic mechanism to move the test probe to a predetermined test position according to the test item. The short-circuit tester performs the short-circuit test and outputs the test results.

[0038] In a preferred embodiment, the telescopic mechanism uses a cylinder (or an electric lead screw, etc.); the connecting block is specifically a probe mounting plate; the human-machine interface 1 is a function point selection screen; and the control module 2 is implemented by a PLC (programmable logic controller).

[0039] Control module 2 is electrically connected to human-machine interface 1, test switch, short-circuit tester 3, and telescopic mechanism (i.e., cylinder). The electrical connection between control module 2 and the cylinder is not... Figure 1 As shown in the image.

[0040] On the human-machine interface 1, a test item is selected. The control module 2 calls the preset control parameters corresponding to the test item and controls the telescopic mechanism (i.e., the cylinder) to drive the test probe to return to its position, placing the battery cell 27 under test into the test position. Four battery cell positioning blocks 16 are set around the test position to position the battery cell 27 under test. The control module 2 is activated by the test switch, which again controls the extension or retraction of the cylinder to achieve contact between the corresponding test probe and the test part of the battery cell 27 under test. The short-circuit tester 3 then issues the test result.

[0041] There are four test probes: the first test probe 12, the second test probe 23, the third test probe 26, and the fourth test probe 15. The connecting blocks (i.e., probe mounting plates) that drive the movement of the test probes are the first probe mounting plate 11, the second probe mounting plate 22, the third probe mounting plate 25, and the fourth probe mounting plate 14. The first test probe 12 and the second test probe 23 move vertically, while the third test probe 26 and the fourth test probe 15 move horizontally, aligning with different test locations on the tested cell 27. The first test probe 12 corresponds to the positive terminal (or positive electrode tab) of the tested cell 27; the second test probe 23 corresponds to the negative terminal or casing of the tested cell 27; the third test probe 26 corresponds to the negative terminal of the tested cell 27; and the fourth test probe 15 corresponds to the positive terminal of the tested cell 27.

[0042] The first cylinder 10 and the second cylinder 21 extend so that the first test probe 12 and the second test probe 23 can contact the test area; the third cylinder 24 and the fourth cylinder 13 retract so that the third test probe 26 and the fourth test probe 15 can contact the test area.

[0043] In one embodiment, see Figure 1 The testing device has two mounting plates, one vertical and one horizontal, which are fixedly installed, namely the vertical mounting plate 7 and the horizontal mounting plate 28.

[0044] In one embodiment, the first cylinder 10 and the second cylinder 21 are directly mounted on the vertical mounting plate 7 (not shown) by fastening screws. The first cylinder 10 and the second cylinder 21 control the vertical movement of the first test probe 12 and the second test probe 23, respectively. In this case, the stroke of the cylinder is the vertical range of motion of the test probe.

[0045] In another embodiment, see Figure 1 To increase the vertical movement space of the test probes and facilitate the placement and removal of the battery cell 27 under test, a fifth cylinder 8 can be provided. This fifth cylinder 8 is connected to both the first cylinder 10 and the second cylinder 21 via a horizontal connecting plate 9. This controls the vertical movement of the first cylinder 10 and the second cylinder 21, thereby increasing the range of motion of the first test probe 12 and the second test probe 23. The extension or retraction of the fifth cylinder 8 can cause the first cylinder 10 and the second cylinder 21 to move downwards or upwards over a longer stroke range. This allows the first test probes 12 and 23 to be kept away from the horizontal mounting plate 28 before placing the battery cell 27 under test, preventing them from being damaged by contact. With the fifth cylinder 8 extended, further adjustments to the first cylinder 10 and the second cylinder 21 can cause the first test probes 12 and 23 to contact or move away from the battery cell 27 under test.

[0046] Furthermore, the connecting plate 9 and the fifth cylinder 8 are connected by a guide rail 19 and a slider 20 to prevent the fifth cylinder 8 from jamming. At this time, the vertical mounting plate 7 is used to mount the fifth cylinder 8 and the guide rail 19, etc. The fifth cylinder 8 is mounted on the vertical mounting plate 7 by fastening screws 18; the first cylinder 10 and the second cylinder 21 are mounted on the connecting plate 9 by fastening screws.

[0047] In both of the above embodiments, the third cylinder 24 and the fourth cylinder 13 are mounted on the horizontal mounting plate 28 by fastening screws.

[0048] It should be noted that the installation method of the first cylinder 10 and the second cylinder 21 is not limited to the two methods mentioned above, as long as the requirements of the first test probe 12 and the second test probe 23 contacting or leaving the specific test part are met.

[0049] In one embodiment, the vertical mounting plate 7 also has a wiring transition panel 5 for electrical connections between the short-circuit tester 3 and the test probe, and between the control module 2 and the telescopic mechanism (i.e., the cylinder). In this way, the test circuit 4 and the control circuit 6 are neatly arranged, making the testing device more stable and reliable.

[0050] In one embodiment, the test switch for starting the test is a dual start button 17. The test will only start when both buttons are in the start state, so as to ensure that the test start is safe and reliable and to prevent accidental activation of the test device due to accidental touch, which could cause damage to the object or injury to the person.

[0051] The short-circuit testing device of this invention also has multi-channel testing capabilities. The control module 2 has preset cylinder extension / retraction parameters corresponding to various test combinations. These test combinations include at least: short-circuit testing of bare cells after lamination, short-circuit testing between the positive and negative terminals of the cell after casing, short-circuit testing between the negative terminal of the cell and the casing after casing, short-circuit testing between the positive and negative terminals after a helium detector test, short-circuit testing between the positive terminal and the casing after a helium detector test, and short-circuit testing between the positive and negative terminals after electrolyte injection. Corresponding to these test combinations, multiple test items are displayed on the human-machine interface for the operator to select the specific test content.

[0052] See Figures 2 to 6 The figure shows multiple short-circuit test sites during the standard assembly process of the blade battery. Due to the unique nature of its manufacturing process, the blade battery requires a short-circuit test after lamination and hot pressing during the cell assembly stage, i.e., a bare cell short-circuit test (see...). Figure 3 After the negative terminal of the battery cell is inserted into the casing, a short-circuit test is performed, including a short-circuit test between the positive terminal tab and the negative terminal top cover (see...). Figure 4 Short-circuit test between the negative terminal and the casing (see...) Figure 5 After a helium detector test, a short-circuit test is performed, including a short-circuit test between the positive and negative terminals (see...). Figure 6 Short circuit test between the positive terminal and the aluminum casing (see) Figure 7 After injection, perform short-circuit test 4, i.e., short-circuit test between the positive and negative terminals (see...). Figure 6 ).

[0053] This invention also provides a multi-channel short-circuit test method for blade batteries, using the multi-channel short-circuit test device for blade batteries described in the above embodiments. As a specific embodiment, the test steps include:

[0054] The operator selects a test item on the human-machine interface 1.

[0055] In the repositioning step, control module 2 calls the preset parameters corresponding to the test item and controls the telescopic mechanism to drive the test probe to reposition.

[0056] Place the battery cell 27 to be tested into the test position;

[0057] Press the dual start button 17;

[0058] Control module 2 controls the corresponding test probe to contact the test part of the battery cell 27 under test;

[0059] The short-circuit tester 3 issues the test result and returns to the reset step;

[0060] If you need to select a test item again, return to the selection step.

[0061] by Figure 1 As an example, the operation and action logic of the test mechanism (cylinder and probe) under various test items are explained as follows:

[0062] 1. Short-circuit test of bare cells after lamination:

[0063] In the human-machine interface 1, select function point 1 → the control module 2 outputs a signal to the short-circuit tester 3 and each cylinder. The short-circuit tester 3 automatically adjusts according to the set parameters → the fifth cylinder 8 automatically retracts → the first cylinder 10, the second cylinder 21, the third cylinder 24 and the fourth cylinder 13 automatically extend, and the first test probe 12 and the second test probe 23 are at the same height → place the stacked bare cell 27 into the test position → press the dual start button 17 → the fifth cylinder 8 extends, and the first test probe 12 and the second test probe 23 respectively contact the positive and negative terminals of the cell 27, forming a circuit with the short-circuit tester 3 through the test circuit 4, thus completing the short-circuit test of the cell 27.

[0064] 2. Short circuit test between the positive and negative terminals of the battery cell after casing:

[0065] In the human-machine interface 1, select function point 2 → control module 2 outputs a signal to the short-circuit tester 3 and the cylinder. The short-circuit tester 3 automatically adjusts according to the set parameters → the second cylinder 21 and the fifth cylinder 8 automatically retract → the first cylinder 10, the third cylinder 24 and the fourth cylinder 13 automatically extend → place the battery cell 27 after it has been installed in the casing into the test position → press the dual start button 17 → the fifth cylinder 8 extends and the third cylinder 24 retracts. The first test probe 12 and the third test probe 26 contact the positive electrode tab and the negative electrode post of the battery cell 27 respectively, forming a circuit with the short-circuit tester 3 through the test circuit 4, thus completing the short-circuit test of the battery cell 27.

[0066] 3. Short circuit test between the negative terminal of the battery cell and the casing after installation:

[0067] In the human-machine interface 1, select function point 3 → control module 2 outputs a signal to the short-circuit tester 3 and the cylinder. The short-circuit tester 3 automatically adjusts according to the set parameters → the first cylinder 10 and the fifth cylinder 8 automatically retract → the second cylinder 21, the third cylinder 24 and the fourth cylinder 13 automatically extend → place the battery cell 27 after it has been installed in the casing into the test position → press the dual start button 17 → the fifth cylinder 8 extends and the third cylinder 24 retracts. The second test probe 23 and the third test probe 26 contact the casing and the negative terminal of the battery cell 27 respectively, forming a circuit with the short-circuit tester 3 through the test circuit 4, thus completing the short-circuit test of the battery cell 27.

[0068] 4. Short circuit test between positive and negative terminals after a helium detection.

[0069] In the human-machine interface 1, select function point 4 → the control module 2 outputs a signal to the short-circuit tester 3 and the cylinder. The short-circuit tester 3 automatically adjusts according to the set parameters → the first cylinder 10, the second cylinder 21 and the fifth cylinder 8 automatically retract → the third cylinder 24 and the fourth cylinder 13 automatically extend → the battery cell 27 after the first helium test is placed in the test position → press the dual start button 17 → the third cylinder 24 and the fourth cylinder 13 retract, the third test probe 26 and the fourth test probe 15 contact the negative terminal and the positive terminal of the battery cell 27 respectively, and form a circuit with the short-circuit tester 3 through the test circuit 4 to complete the short-circuit test of the battery cell 27.

[0070] 5. Short circuit test between the positive electrode terminal and the casing after a helium detector test:

[0071] In the human-machine interface 1, select function point 5 → the control module 2 outputs a signal to the short-circuit tester 3 and the cylinder. The short-circuit tester 3 automatically adjusts according to the set parameters → the first cylinder 10 and the fifth cylinder 8 automatically retract → the second cylinder 21, the third cylinder 24 and the fourth cylinder 13 automatically extend → place the battery cell 27 that has undergone helium testing into the test position → press the dual start button 17 → the fourth cylinder 13 retracts and the fifth cylinder 8 extends. The second test probe 23 and the fourth test probe 15 respectively contact the casing and the positive terminal of the battery cell 27, forming a circuit with the short-circuit tester 3 through the test circuit 4, thus completing the short-circuit test of the battery cell 27.

[0072] 6. Short-circuit test between positive and negative terminals after liquid injection:

[0073] In the human-machine interface, select function "6". The rest of the operation and actions are the same as those for the short circuit test between the positive and negative terminals after a helium test.

[0074] In summary, this invention provides a multi-channel short-circuit testing device and method for blade batteries. It employs automatic switching of test parameters via electrical control, eliminating the need for manual parameter setting. A single test fixture is equipped with multiple test probes, and different testing requirements can be switched via function selection. The equipment performs automatic testing, resolving safety issues associated with manual testing, improving operator safety, and ensuring the accuracy of test results. This testing device has a simple structure, is easy to operate, possesses multi-channel testing capabilities, and strong compatibility, meeting the short-circuit testing needs of the entire blade battery cell assembly and production process. Therefore, this invention effectively overcomes the various shortcomings of existing technologies and has high industrial application value.

[0075] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A multi-channel short-circuit testing device for blade batteries, characterized in that, The testing device includes: a test switch, a short-circuit tester, a control module, a human-machine interface, test circuitry, and test fixtures; wherein... The test fixture includes a mounting plate for mounting the test mechanism and positioning the battery cell under test. The mounting plate includes a vertical mounting plate and a horizontal mounting plate. The horizontal mounting plate is provided with the test switch and a battery cell positioning block for limiting and positioning the battery cell under test. The testing mechanism includes a telescopic mechanism, a connecting block, and a test probe. The telescopic mechanism drives the connecting block to move. The test probe is installed on the connecting block. The test probe contacts the test part of the battery cell under test and forms a test circuit with the short-circuit tester through the test line. The telescopic mechanism includes a first cylinder, a second cylinder, a third cylinder, and a fourth cylinder that drive the movement of the corresponding test probes, and a fifth cylinder that jointly drives the first cylinder and the second cylinder to lift and lower as a whole. The test probes include a first test probe, a second test probe, a third test probe, and a fourth test probe. The first test probe and the second test probe are driven to move vertically by the first cylinder and the second cylinder disposed on the vertical mounting plate, respectively, to contact the positive electrode or positive electrode tab and the negative electrode or the casing of the battery cell under test. The third test probe and the fourth test probe are driven to move horizontally by the third cylinder and the fourth cylinder disposed on the horizontal mounting plate, respectively, to contact the negative electrode post and the positive electrode post of the battery cell under test. The fifth cylinder is mounted on the vertical mounting plate and is connected to both the first cylinder and the second cylinder via a horizontally arranged connecting plate. When the fifth cylinder extends or retracts, it drives the first cylinder and the second cylinder to move up and down as a whole within a preset stroke range. This allows the first test probe and the second test probe to be moved away from the horizontal mounting plate when the battery cell under test is placed or removed to avoid damage to the probes. During testing, the fifth cylinder works in conjunction with the stroke of the first cylinder and the second cylinder to precisely control the contact between the first test probe and the second test probe and the battery cell under test. The test switch uses a dual-start button, and the test begins when both buttons are in the start state. The control module is electrically connected to the human-machine interface, the short-circuit tester, and the telescopic mechanism. The human-machine interface allows selection of test items. The control module controls the telescopic mechanism to move the test probe to the predetermined test position according to the test item content. The short-circuit tester is responsible for short-circuit testing and issues test results. The test items include at least the following: short circuit test of bare cells after lamination, short circuit test between positive and negative terminals of cells after casing, short circuit test between negative terminal of cells and casing after casing, short circuit test between positive and negative terminals after one helium test, short circuit test between positive terminal and casing after one helium test, and short circuit test between positive and negative terminals after electrolyte filling.

2. The multi-channel short-circuit test device for blade batteries according to claim 1, characterized in that, The fifth cylinder is connected to the connecting plate by a guide rail and a slider.

3. The multi-channel short-circuit test device for blade batteries according to claim 1, characterized in that, The mounting plate also has a line transfer strip for electrical connection between the short-circuit tester and the test probe, and between the control module and the telescopic mechanism.

4. The multi-channel short-circuit test device for blade batteries according to claim 1, characterized in that, The control module has preset control parameters for various test combinations.

5. A multi-channel short-circuit test method for blade batteries, characterized in that, Using the blade battery multi-channel short-circuit test apparatus as described in any one of claims 1 to 4, the test steps include: The operator selects a test item on the human-machine interface. In the repositioning step, the control module calls the preset parameters corresponding to the test item and controls the telescopic mechanism to drive the test probe to reposition. Place the battery cell to be tested into the test position; The control module is activated to control the corresponding test probe to contact the test part of the battery cell under test; The short-circuit tester issues a test result and returns to the reset step; If you need to reselect a test item, return to the selection steps described above.

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