Testing tool for lithium battery product

Abstract

The utility model relates to the technical field of battery testing, and particularly discloses a testing tool for a lithium battery product, which comprises a machine table; the bracket is fixedly arranged on the machine table; and the adjusting assembly is arranged on the bracket and is suitable for testing the lithium batteries with different sizes. According to the test tool used for the lithium battery product, in a lithium battery power-on test, through the arrangement of the adjusting assembly, the distance between the two supporting blocks can be adjusted, probes on the supporting blocks are in butt joint with positive electrodes and negative electrodes on lithium battery protection plates of different sizes, the application range is widened, and in addition, under the cooperation of the positioning assembly, the detection accuracy is improved. The lithium battery is automatically clamped and fixed, position deviation when the probe is connected with the positive electrode and the negative electrode of the protection plate is avoided, and the probe is more conveniently connected with the positive electrode and the negative electrode of the protection plate.

Description

Technical Field

[0001] This utility model relates to the field of battery testing technology, specifically to a testing fixture for lithium battery products. Background Technology

[0002] With the continuous development of modern society and the continuous improvement of economic level, the domestic lithium battery industry is also constantly developing. In the existing lithium battery industry, in order to protect the safety of lithium battery use, a protection board is often installed on the outside of the lithium battery to protect it and output the internal electrical energy. In the production process of lithium battery protection boards, in order to ensure the quality of lithium battery protection boards, it is often necessary to test them. At this time, testing fixtures for lithium battery protection boards are needed. During the testing process, wires need to be connected to the positive and negative terminals of the battery, and then the performance of the battery is tested by testing equipment to ensure that there are no poor solder joints in the lithium battery protection board.

[0003] A patent for a testing fixture for a lithium battery protection board, with announcement number CN218470780U, includes a fixing plate and a support plate. The support plate is mounted on top of the fixing plate. An electric telescopic rod is mounted on the inner wall of the top of the support plate. Two sets of probes are installed through the tail end of the electric telescopic rod via a connecting piece. Four flanges are mounted on the bottom of the fixing plate. This utility model uses a support plate to mount the electric telescopic rod and probes. After the lithium battery protection board is fixed, electrical energy is transmitted to the interior of the electric telescopic rod via an external control component. The electric telescopic rod then extends, causing the probes mounted at its bottom to contact the lithium battery protection board, completing the automatic detection of the device and improving its detection efficiency.

[0004] However, in this prior art, the distance between the probes is fixed during the testing of lithium battery protection boards, making it inconvenient to adjust the distance between the probes according to the needs of use, thus reducing the applicability of the testing fixture.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of this invention is to provide a testing fixture for lithium battery products that can effectively solve the above-mentioned technical problems.

[0007] To achieve the purpose of this utility model, the following technical solution is adopted:

[0008] A testing fixture for lithium battery products includes: a machine base; a bracket fixedly mounted on the machine base; and an adjustment component disposed on the bracket for testing lithium batteries of various sizes.

[0009] The adjustment assembly includes: a probe for connecting the positive and negative electrodes of the lithium battery protection board; a support block fixedly connected to the probe; a movable plate slidably installed between the two support blocks; an electric push rod for driving the movable plate to rise and fall, and the electric push rod is fixedly installed on the bracket; an adjustment plate slidably installed at one end of the support block; and a threaded rod threadedly installed between the two adjustment plates, with both ends of the threaded rod rotatably installed on the bracket.

[0010] Furthermore, both ends of the threaded rod are provided with threads, and the threads at the left and right ends are arranged in opposite directions.

[0011] Furthermore, a slider is fixedly connected to the bottom of the adjustment plate, and a groove is provided on the surface of the machine base to cooperate with the slider at the bottom of the adjustment plate. A positioning component for positioning the lithium battery is also provided on the adjustment plate, and a baffle is provided on the machine base to cooperate with the positioning component.

[0012] Furthermore, the positioning component includes: a positioning plate; a guide rod for guiding the movement of the positioning plate, with one end of the guide rod movably passing through a corresponding adjusting plate; and a hinge rod hinged to the positioning plate, with one end of the hinge rod hinged to the bottom of an adjacent support block.

[0013] Furthermore, the bottom of the baffle is slidably mounted on the machine base, and an adjusting bolt is rotatably mounted on the surface of the baffle. A fixing block is threaded onto the surface of the adjusting bolt, and the bottom of the fixing block is fixedly mounted on the surface of the machine base.

[0014] Furthermore, a bearing is provided on the surface of one end of the adjusting bolt, and the inner ring of the bearing is fixedly connected to the surface of the adjusting bolt, while the outer ring of the bearing is fixedly connected to the interior of the baffle.

[0015] Compared with the prior art, the present invention has the following advantages: In the lithium battery power-on test, by adjusting the component settings, the distance between the two support blocks can be adjusted, so that the probes on the support blocks can be connected to the positive and negative electrodes on the lithium battery protection boards of different sizes, thereby improving the applicability. In addition, with the cooperation of the positioning component, the lithium battery can be automatically clamped and fixed, avoiding positional deviation when the probes are connected to the positive and negative electrodes of the protection board, making it more convenient to connect the probes to the positive and negative electrodes of the protection board. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] Figure 1 This is a front view schematic diagram of the present invention;

[0018] Figure 2 This is a partial front view schematic diagram of the adjustment component and positioning component of this utility model;

[0019] Figure 3 This is a bottom view of a partial structure of the adjustment component and positioning component of this utility model.

[0020] In the diagram: 1. Machine base; 2. Support; 3. Adjustment assembly; 301. Probe; 302. Support block; 303. Moving plate; 304. Electric push rod; 305. Adjustment plate; 306. Threaded rod; 4. Positioning assembly; 401. Positioning plate; 402. Guide rod; 403. Hinge rod; 5. Baffle; 501. Adjusting bolt; 502. Fixing block. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0022] In the description of this utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0023] like Figures 1 to 3 As shown, this utility model provides a testing fixture for lithium battery products, comprising: a machine base 1; a bracket 2 fixedly mounted on the machine base 1; and an adjustment component 3 disposed on the bracket 2 for testing lithium batteries of various sizes.

[0024] The adjustment assembly 3 includes: a probe 301 for connecting the positive and negative electrodes of the lithium battery protection board; a support block 302 fixedly connected to the probe 301; a movable plate 303 slidably installed between the two support blocks 302; an electric push rod 304 that drives the movable plate 303 to rise and fall, and the electric push rod 304 is fixedly installed on the bracket 2. The two electric push rods 304 can achieve synchronous extension and retraction through parameter adjustment; an adjustment plate 305 slidably installed at one end of the support block 302; and a threaded rod 306 threadedly installed between the two adjustment plates 305, and the two ends of the threaded rod 306 are rotatably installed on the bracket 2.

[0025] A handwheel is fixedly connected to one end of the threaded rod 306. During lithium battery power-on testing, the distance between the two probes 301 needs to be adjusted according to the distance between the two positive and negative electrodes on the lithium battery protection board. By rotating the handwheel at the end of the threaded rod 306, the two adjusting plates 305 symmetrically threaded on the surface of the threaded rod 306 move simultaneously in opposite directions or relative to each other. This causes the support block 302, which is slidably mounted on the adjusting plate 305, to move the probe 301, thereby adjusting the distance between the two support blocks 302. This allows the probe 301 to connect with the positive and negative electrodes on lithium battery protection boards of different sizes, improving its applicability.

[0026] It should be noted that both ends of the threaded rod 306 are threaded, and the threads at the left and right ends are in opposite directions; when the threaded rod 306 rotates, the two adjusting plates 305, which are symmetrically threaded on the surface of the threaded rod 306, can move simultaneously in opposite directions or relative to each other.

[0027] It should be added here that a slider is fixedly connected to the bottom of the adjusting plate 305, and a groove is opened on the surface of the machine base 1 to cooperate with the slider at the bottom of the adjusting plate 305. The adjusting plate 305 is also provided with a positioning component 4 for positioning the lithium battery, and a baffle 5 is provided on the machine base 1 to cooperate with the positioning component 4. The upper end of the adjusting plate 305 is slidably mounted on the top wall of the bracket 2. By sliding the upper and lower ends of the adjusting plate 305 on the top wall of the bracket 2 and the surface of the machine base 1 respectively, the stability of the movement of the adjusting plate 305 can be further improved.

[0028] In lithium battery protection board testing, in order to improve the reliability of the connection between the positive and negative electrodes of the protection board and the probes;

[0029] The positioning component 4 includes: a positioning plate 401; a guide rod 402 for guiding the movement of the positioning plate 401, with one end of the guide rod 402 movably passing through the corresponding adjusting plate 305; and a hinge rod 403 hingedly mounted on the positioning plate 401, with one end of the hinge rod 403 hingedly mounted on the bottom of the adjacent support block 302.

[0030] After adjusting the distance between the two probes 301, the output ends of the two electric push rods 304 synchronously push the moving plate 303 down, causing the probes 301 to move closer to the lithium battery protection board. At this time, the support block 302 descends, causing the hinge rod 403 at the bottom to deflect, which pushes the positioning plate 401 closer to the lithium battery. At this time, the lithium battery side is blocked by the baffle 5. When the probes 301 are connected to the positive and negative terminals of the lithium battery protection board, the positioning plate 401 completes the clamping and positioning of the lithium battery, automatically realizing the clamping and fixing of the lithium battery, avoiding positional deviation when the probes 301 are connected to the positive and negative terminals of the protection board, and making it more convenient to connect the probes 301 to the positive and negative terminals of the protection board.

[0031] In addition, the bottom of the baffle 5 is slidably mounted on the machine base 1, and the surface of the baffle 5 is rotatably mounted with an adjusting bolt 501. The surface of the adjusting bolt 501 is threaded with a fixing block 502, and the bottom of the fixing block 502 is fixedly mounted on the surface of the machine base 1.

[0032] When it is necessary to fine-tune the distance of the baffle 5 according to the size of the rectangular lithium battery, the adjusting bolt 501 is rotated to make the adjusting bolt 501 screw in and out on the fixed block 502. At this time, one end of the adjusting bolt 501 can drive the baffle 5 to slide on the machine base 1, thereby adjusting the distance between the positioning plate 401 and the baffle 5, which further facilitates the clamping of rectangular lithium batteries of different sizes.

[0033] It should be noted that a bearing is provided on the surface of one end of the adjusting bolt 501, and the inner ring of the bearing is fixedly connected to the surface of the adjusting bolt 501, while the outer ring of the bearing is fixedly connected to the inside of the baffle 5. The bearing allows the adjusting bolt 501 to rotate freely on the baffle 5. When the adjusting bolt 501 is screwed in and out on the fixed block 502, it can drive the baffle 5 to slide on the machine base 1.

[0034] Working principle: When the power is turned on and the lithium battery is being tested, the distance between the two probes 301 needs to be adjusted according to the distance between the two positive and negative terminals on the lithium battery protection board. By rotating the handwheel at the end of the threaded rod 306, the two adjusting plates 305, which are symmetrically threaded on the surface of the threaded rod 306, move simultaneously in opposite directions or relative to each other. This causes the support block 302, which is slidably mounted on the adjusting plate 305, to move the probes 301, thereby adjusting the distance between the two support blocks 302. After the distance between the two probes 301 is adjusted, the output ends of the two electric push rods 304 synchronously push the moving plate 303 down, causing the probes 301 to move closer to the lithium battery protection board. At this time, the support block 302 moves down, causing the hinge rod 403 at the bottom to deflect, which pushes the positioning plate 401 closer to the lithium battery. At this time, the lithium battery is blocked by the baffle 5. When the probes 301 are connected to the positive and negative terminals of the lithium battery protection board, the positioning plate 401 completes the clamping and positioning of the lithium battery, automatically achieving the clamping and fixing of the lithium battery.

[0035] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0036] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A testing fixture for lithium battery products, characterized in that, include: Machine tool; A bracket fixedly installed on the machine base; An adjustment assembly is mounted on the bracket for testing various sizes of lithium batteries. The adjustment assembly includes: a probe for connecting the positive and negative electrodes of the lithium battery protection board; a support block fixedly connected to the probe; a movable plate slidably installed between the two support blocks; an electric push rod for driving the movable plate to rise and fall, and the electric push rod is fixedly installed on the bracket; an adjustment plate slidably installed at one end of the support block; and a threaded rod threadedly installed between the two adjustment plates, with both ends of the threaded rod rotatably installed on the bracket.

2. The testing fixture for lithium battery products as described in claim 1, characterized in that, The threaded rod has threads at both ends, and the threads at the left and right ends are arranged in opposite directions.

3. The testing fixture for lithium battery products as described in claim 1, characterized in that, The bottom of the adjustment plate is fixedly connected to a slider, and the surface of the machine base is provided with a sliding groove that cooperates with the slider at the bottom of the adjustment plate. The adjustment plate is also provided with a positioning component for positioning the lithium battery, and the machine base is provided with a baffle that cooperates with the positioning component.

4. The testing fixture for lithium battery products as described in claim 3, characterized in that, The positioning component includes: a positioning plate; a guide rod for guiding the movement of the positioning plate, with one end of the guide rod movably passing through a corresponding adjustment plate; and a hinge rod hinged to the positioning plate, with one end of the hinge rod hinged to the bottom of an adjacent support block.

5. The testing fixture for lithium battery products as described in claim 3, characterized in that, The bottom of the baffle is slidably mounted on the machine base, and an adjusting bolt is rotatably mounted on the surface of the baffle. A fixing block is threaded onto the surface of the adjusting bolt, and the bottom of the fixing block is fixedly mounted on the surface of the machine base.

6. The testing fixture for lithium battery products as described in claim 5, characterized in that, A bearing is provided on the surface of one end of the adjusting bolt, and the inner ring of the bearing is fixedly connected to the surface of the adjusting bolt, while the outer ring of the bearing is fixedly connected to the interior of the baffle.

Images