A battery cell testing machine

Abstract

The utility model relates to test electric core technical field discloses a kind of electric core testing machines, comprising: carrier plate, clamping plate and probe. Carrier plate, for the horizontal setting load matrix, at least one group of linear arrangement's positioning hole is provided on carrier plate along its length direction interval, positioning hole penetrates the upper and lower surfaces of carrier plate, for providing positioning reference;Clamping plate is detachably connected on the upper surface of carrier plate, recess is equipped on clamping plate, recess recess position forms the installation site for fixedly testing electric core, cooperation hole corresponding with positioning hole is also provided on clamping plate, cooperation hole is connected with positioning hole by fastener to be set, to realize the position fixation of clamping plate compared with carrier plate;At least two groups of movable probe, probe is respectively arranged on the two sides of carrier plate and corresponds with installation site, probe can be moved along the direction of approaching or moving away from installation site, for contacting with the electrode of installation site in the electric core of fixedly testing to complete electrical property test.

Description

Technical Field

[0001] This utility model relates to the field of battery cell testing technology, specifically a battery cell testing machine. Background Technology

[0002] OCV testing of prismatic batteries with tabs at both ends is a crucial step in verifying battery voltage performance and ensuring product quality. During the testing process, there are high requirements for accurate data acquisition and proper archiving.

[0003] Existing cell testing machines still have the following problems: When using a fixed-structure card to carry the battery, the card's compatibility with cell specifications is relatively limited, mostly adapting to a single battery model. When testing requirements involve cells of different specifications, the entire card often needs to be replaced, adding adjustment steps to the operation process. Due to this structure, the flexibility of probe adjustment during testing is also limited. When connecting the tabs, manual and repeated calibration is usually required to adapt to different battery models, which to some extent hinders the rapid realization of simultaneous automatic measurement of bipolar plates.

[0004] Therefore, there is an urgent need for a cell testing machine to solve the above problems. Utility Model Content

[0005] Based on the above, the purpose of this utility model is to provide a battery cell testing machine to solve the problem of low card compatibility.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A battery cell testing machine, comprising:

[0008] The carrier plate is a horizontally arranged support base. At least one set of linearly arranged positioning holes are spaced apart along its length. The positioning holes penetrate the upper and lower surfaces of the carrier plate to provide positioning references.

[0009] A card plate is detachably connected to the upper surface of the carrier plate. The card plate has a groove, and the recessed part of the groove forms an installation position for fixing the battery cell to be tested. The card plate also has a mating hole corresponding to the positioning hole. The mating hole and the positioning hole are connected by fasteners to fix the position of the card plate relative to the carrier plate.

[0010] At least two sets of movable probes are respectively disposed on both sides of the carrier plate and corresponding to the mounting position. The probes can move in a direction close to or away from the mounting position to contact the electrodes of the cell to be tested in the mounting position to complete the electrical performance test.

[0011] As a preferred embodiment of a cell testing machine, it further includes a drive source disposed between the carrier and the probe, the drive source being used to drive the probe to move in a direction toward or away from the mounting position.

[0012] As a preferred embodiment of a battery cell testing machine, the probe is connected to the driving source via a positioning block. The probe includes a pin and a test head. The surface of the positioning block is provided with a slot. The pin is inserted through the slot. One end of the test head is inserted into the pin. The other end of the test head is used for testing electrodes.

[0013] As a preferred embodiment of a battery cell testing machine, a limiting plate is detachably mounted on the carrier plate, and the carrier plate is connected to the drive source via a frame plate. The bottom of the frame plate is provided with an opening for connecting to the positioning hole, and the side of the frame plate is provided with a slot for connecting to one end of the drive source.

[0014] As a preferred embodiment of a battery cell testing machine, the carrier plate is equipped with protruding plates along its length, and the two protruding plates form a concave slide on opposite sides. The positioning holes are spaced apart along the length of the carrier plate in the concave surface, and the clamping plate can slide along the slide to adjust its position.

[0015] As a preferred embodiment of a battery cell testing machine, it also includes an electronic control component. A worktable is mounted on the bottom of the carrier board, and the electronic control component is disposed on the worktable. The electronic control component is connected to the probe and is used to test and display battery cell electrode data.

[0016] As a preferred embodiment of a battery cell testing machine, the electronic control assembly includes a display, a voltage resistance tester, and an industrial control computer, all of which are mounted on the workbench. The probe, the display, and the voltage resistance tester are all electrically connected to the industrial control computer.

[0017] As a preferred embodiment of a battery cell testing machine, the electronic control assembly further includes a barcode scanner, which is mounted on the workbench and electrically connected to the industrial control computer.

[0018] As a preferred embodiment of a battery cell testing machine, the probe includes a positive electrode probe body and a negative electrode probe body, which are respectively disposed at both ends of the carrier plate. The positive electrode probe body is used to measure the positive electrode plate of the battery cell, and the negative electrode probe body is used to measure the negative electrode plate of the battery cell.

[0019] As a preferred embodiment of a battery cell testing machine, a limiting plate is detachably mounted on the carrier plate to prevent the battery cell from moving. The bottom of the limiting plate is provided with a slot for mounting in conjunction with the positioning hole.

[0020] The beneficial effects of this utility model are as follows: By providing a reference through linear positioning holes on the carrier plate, and connecting the clamping plate with the positioning holes using fasteners, the position of the clamping plate on the carrier plate can be adjusted according to the size of the battery cell. Multiple sets of clamping plates can also be used to simultaneously support the battery cell at different positions on the carrier plate according to the battery cell size requirements, thereby improving the adaptability and reliability of battery cells of various specifications. The probes on both sides are movable on both sides of the mounting position, which can flexibly approach or move away from the battery cell electrodes, realize automatic simultaneous measurement of bipolar plates, reduce manual intervention, reduce operational errors, and significantly improve testing efficiency. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of a battery cell testing machine in the first direction provided by this utility model;

[0022] Figure 2 for Figure 1 A magnified view of part A in the diagram;

[0023] Figure 3 A schematic diagram of the overall structure in the second direction of a battery cell testing machine provided by this utility model;

[0024] Figure 4 This utility model provides a schematic diagram of the structure of an open workbench in a battery cell testing machine;

[0025] Figure 5 This is a schematic diagram of the overall structure of a battery cell testing machine without a workbench, as provided by this utility model.

[0026] The following are the labeling elements in the figure:

[0027] 1. Carrier plate; 2. Mounting plate;

[0028] 3. Probe; 301. Positive probe body; 302. Negative probe body; 311. Insert pin; 322. Test head;

[0029] 4. Positioning hole; 5. Protruding plate; 6. Slide rail; 7. Limiting plate; 8. Slot; 9. Groove; 10. Mounting position; 11. Mating hole; 12. Drive source; 13. Positioning block; 14. Slot; 15. Shelf plate; 16. Opening; 17. Slot; 18. Workbench; 19. Electrical control components; 20. Display; 21. Voltage and internal resistance tester; 22. Industrial computer; 23. Barcode scanner. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 utility model.

[0034] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no specific meaning.

[0035] In one embodiment of this utility model, such as Figure 1-5As shown, a battery cell testing machine is provided, including: a carrier plate 1, a clamping plate 2, and probes 3. The carrier plate 1 is a horizontally arranged support base, and at least one set of linearly arranged positioning holes 4 are spaced along its length. The positioning holes 4 penetrate the upper and lower surfaces of the carrier plate 1 to provide positioning references. The clamping plate 2 is detachably connected to the upper surface of the carrier plate 1. The clamping plate 2 is provided with a groove 9, and the recessed position of the groove 9 forms a mounting position 10 for fixing the battery cell to be tested. The clamping plate 2 is also provided with a mating hole 11 corresponding to the positioning hole 4. The mating hole 11 and the positioning hole 4 are connected by fasteners to fix the position of the clamping plate 2 relative to the carrier plate 1. At least two sets of movable probes 3 are respectively arranged on both sides of the carrier plate 1 and corresponding to the mounting position 10. The probes 3 can move in the direction of approaching or moving away from the mounting position 10 to contact the electrodes of the battery cell to be tested in the mounting position 10 to complete the electrical performance test.

[0036] The battery cell testing machine provided in this utility model uses a linear positioning hole 4 on a carrier plate 1 to provide a reference. The clamping plate 2 is connected to the positioning hole 4 with fasteners through a mating hole 11, so that the clamping plate 2 can be adjusted on the carrier plate 1 according to the size of the battery cell. Multiple clamping plates 2 can also be used to support the battery cell at different positions on the carrier plate 1 according to the size requirements of the battery cell, which improves the adaptability and reliability of battery cells of various specifications. The probes 3 on both sides are movable on both sides of the mounting position 10, which can flexibly approach or move away from the battery cell electrode, realize automatic bipolar simultaneous measurement, reduce manual intervention, reduce operation error, and greatly improve testing efficiency.

[0037] The carrier plate 1 has protruding plates 5 installed on both sides along its length. The two protruding plates 5 form concave slides 6 on opposite sides. Positioning holes 4 are spaced apart along the length of the carrier plate 1 in the concave surface. The clamping plate 2 can slide and adjust its position along the slides 6. This allows the clamping plate 2 to slide and adjust its position along the slides 6, thereby quickly adapting to different battery cells and improving the efficiency of battery cell replacement.

[0038] Preferably, a limiting plate 7 is detachably installed on the carrier plate 1. The limiting plate 7 is used to prevent the battery cell from moving. The bottom of the limiting plate 7 is provided with a slot 8, which is used to mate with the positioning hole 4. The limiting plate 7 is positioned on the carrier plate 1 and abuts against the battery cell, so that the limiting plate 7 can firmly limit the battery cell, thereby preventing the battery cell from shifting during testing and ensuring testing accuracy.

[0039] The probe 3 includes a positive probe body 301 and a negative probe body 302, which are respectively disposed at both ends of the carrier plate 1. The positive probe body 301 is used to measure the positive electrode of the battery cell, and the negative probe body 302 is used to measure the negative electrode of the battery cell. The two probe bodies are spatially independent, which not only avoids interference between positive and negative signals during testing, but also automatically detects the bidirectional positive and negative electrodes of the battery cell, thus improving the efficiency of battery cell testing.

[0040] The battery cell testing machine also includes a drive source 12 (such as a cylinder) positioned between the carrier plate 1 and the probe 3. The drive source 12 drives the probe 3 to move in a direction closer to or further away from the mounting position 10. The probe 3 can automatically complete the contact and separation with the battery cell electrodes without manual operation. The stable driving force of the cylinder ensures uniform contact pressure of the probe 3, avoiding poor contact or battery cell damage caused by uneven manual operation. This automates the testing process, reduces labor costs, improves test consistency and safety, and adapts to the needs of batch battery cell testing.

[0041] Preferably, the probe 3 is connected to the drive source 12 via a positioning block 13. The probe 3 includes a pin 311 and a test head 322. The surface of the positioning block 13 is provided with a slot 14, through which the pin 311 is inserted. One end of the test head 322 is inserted into the pin 311, and the other end of the test head 322 is used for a test electrode. This ensures that the probe 3 has a defined position, preventing probe 3 from shifting and improving detection accuracy.

[0042] Preferably, a limiting plate 7 is detachably mounted on the carrier plate 1, and the carrier plate 1 and the drive source 12 are connected via a frame plate 15. The bottom of the frame plate 15 has an opening 16 for connecting to the positioning hole 4. The side of the frame plate 15 has a slot 17 for connecting to one end of the drive source 12. The opening 16 is adapted to the positioning hole 4 of the carrier plate 1, allowing the frame plate 15 to be changed and positioned according to actual needs; the slot 17 is used to adjust the position of the drive source 12, enabling the machine to adapt to cells in different positions during cell testing, thus improving the testing adaptability.

[0043] The battery cell testing machine also includes an electronic control component 19. A workbench 18 is mounted on the bottom of the carrier plate 1, and the electronic control component 19 is disposed on the workbench 18. The electronic control component 19 is connected to the probe 3 and is used to test and display battery cell electrode data. Specifically, the electronic control component 19 includes a display 20, a voltage and internal resistance tester 21, and an industrial control computer 22, all disposed on the workbench 18. The probe 3, display 20, and voltage and internal resistance tester 21 are all electrically connected to the industrial control computer 22. Furthermore, the electronic control component 19 also includes a barcode scanner 23, which is mounted on the workbench 18 and electrically connected to the industrial control computer 22.

[0044] The workbench 18 is equipped with an electrical control assembly 19, which includes a display 20, a voltage and internal resistance tester 21, an industrial control computer 22, and a barcode scanner 23. Each component is electrically connected to the industrial control computer 22. The data from the probe 3 is processed by the industrial control computer 22 and then displayed on the display 20. The barcode scanner 23 can record the cell information. This allows the cell test data to be stored in association with the identification information, realizing the integration of testing, recording, and display. As a result, there is no need for manual data recording, reducing human error, improving the traceability and management efficiency of test data, and meeting the needs of automated testing.

[0045] The testing process in this implementation is as follows: First, the identification information of the battery cell to be tested is scanned by the barcode scanner 23, and the information is synchronously transmitted to the industrial control computer 22 for storage; then, the battery cell is placed in the mounting position 10 of the card plate 2, and the card plate 2 is slid along the slide 6 formed by the protruding plates 5 on both sides of the carrier plate 1. The card plate 2 is fixed with fasteners in conjunction with the positioning hole 4 and the mating hole 11. Then, the upper limit plate 7 is installed and the slot hole 8 and the positioning hole 4 are mated to hold the battery cell; after the equipment is started, the opening 16 and the slot 17 are adjusted according to the position of the battery cell so that the drive source 12 is installed in a specific position on the bracket plate 15. Then, the drive source 12 drives the positive and negative probe bodies 302 to contact the positive and negative plates of the battery cell respectively; the voltage internal resistance tester 21 transmits the test data to the industrial control computer 22, processes it, and displays the result on the display 20 to complete the single battery cell test. The above steps can be repeated for batch testing.

[0046] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A battery cell testing machine, characterized in that, include: The carrier plate is a horizontally arranged support base. At least one set of linearly arranged positioning holes are spaced apart along its length. The positioning holes penetrate the upper and lower surfaces of the carrier plate to provide positioning references. A card plate is detachably connected to the upper surface of the carrier plate. The card plate has a groove, and the recessed part of the groove forms an installation position for fixing the battery cell to be tested. The card plate also has a mating hole corresponding to the positioning hole. The mating hole and the positioning hole are connected by fasteners to fix the position of the card plate relative to the carrier plate. At least two sets of movable probes are respectively disposed on both sides of the carrier plate and corresponding to the mounting position. The probes can move in a direction close to or away from the mounting position to contact the electrodes of the cell to be tested in the mounting position to complete the electrical performance test.

2. The cell testing machine according to claim 1, characterized in that, It also includes a drive source disposed between the carrier plate and the probe, the drive source being used to drive the probe to move in a direction closer to or further away from the mounting position.

3. The cell testing machine according to claim 2, characterized in that, The probe is connected to the driving source via a positioning block. The probe includes a pin and a test head. The surface of the positioning block is provided with a slot. The pin is inserted through the slot. One end of the test head is inserted into the pin. The other end of the test head is used for testing electrodes.

4. A cell testing machine according to claim 2 or 3, characterized in that, A limiting plate can be detachably installed on the carrier plate. The carrier plate is connected to the drive source through a frame plate. The bottom of the frame plate is provided with an opening for connecting with the positioning hole, and the side of the frame plate is provided with a slot for connecting with one end of the drive source.

5. A cell testing machine according to any one of claims 1-3, characterized in that, The carrier plate is equipped with protruding plates along its length, and the two protruding plates form a concave slide on opposite sides. The positioning holes are spaced apart on the concave surface along the length of the carrier plate, and the clamping plate can slide along the slide to adjust its position.

6. A cell testing machine according to any one of claims 1-3, characterized in that, It also includes an electronic control component. A worktable is mounted on the bottom of the carrier board, and the electronic control component is disposed on the worktable. The electronic control component is connected to the probe and is used to test and display cell electrode data.

7. A cell testing machine according to claim 6, characterized in that, The electrical control components include a display, a voltage resistance tester, and an industrial computer, all of which are mounted on the workbench. The probe, the display, and the voltage resistance tester are all electrically connected to the industrial computer.

8. A cell testing machine according to claim 7, characterized in that, The electronic control component also includes a barcode scanner, which is mounted on the workbench and electrically connected to the industrial computer.

9. A cell testing machine according to any one of claims 1, 2, 3, 7, or 8, characterized in that, The probe includes a positive electrode probe body and a negative electrode probe body, which are respectively disposed at both ends of the carrier plate. The positive electrode probe body is used to measure the positive electrode plate of the battery cell, and the negative electrode probe body is used to measure the negative electrode plate of the battery cell.

10. A cell testing machine according to any one of claims 1, 2, 3, 7, or 8, characterized in that, A limiting plate can be detachably installed on the carrier plate. The limiting plate is used to prevent the battery cell from moving. The bottom of the limiting plate is provided with a slot, which is used to mate with the positioning hole.

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