Cylindrical battery clamp apparatus

Abstract

The utility model provides a kind of cylindrical battery clamp device, including support assembly, test fixture assembly, the support assembly is equipped with several layers test fixture assembly, the support assembly includes support, bottom plate, support plate, fixture mounting plate, the utility model has the beneficial effect that after fixing the height of cylindrical battery, two test ends move and respectively and the both ends of cylindrical battery abut, the distance between two test ends matches the length of cylindrical battery, the movement of cylindrical battery along its length direction is limited by two test ends, on the basis of guaranteeing the reliability of cylindrical battery test fixture to cylindrical battery clamping, the applicability of cylindrical battery test fixture to different size, different specification cylindrical battery is improved, it is simple and stable and clamping convenient and reliable, test error is small and cylindrical battery contact can be conveniently adjusted, and the structure is simple, ingenious, and low in manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of battery testing fixture technology, and more particularly to a cylindrical battery fixture device. Background Technology

[0002] With the rapid development of electric vehicles, the power battery industry has been fully explored and has grown rapidly. To improve the battery density of power batteries, the country is now vigorously developing soft-pack lithium-ion batteries. All battery cells undergo rigorous testing, aging, and screening processes before leaving the factory, and battery testing fixtures are indispensable components in these processes.

[0003] During battery design and production, batteries frequently require testing equipment to examine various parameters and assess their electrical performance. In this testing process, the contact between the positive and negative terminals of the battery under test and the test points on the testing equipment is crucial. Poor contact can lead to increased contact resistance, affecting the accuracy of the test results. Therefore, the connection between the battery under test and the testing equipment places high demands on the system. During testing, fixtures are primarily used to connect the battery under test to the testing equipment, ensuring accurate transmission of information from the battery to the testing equipment.

[0004] In current battery manufacturing, due to different needs, there are various types and specifications of batteries, and the sizes of batteries of different specifications and types are also different. The distance between the positive and negative tabs of the battery varies greatly. As a result, when testing different models of batteries, it is necessary to use test fixtures corresponding to different models of batteries.

[0005] Currently, most battery testing fixtures use circular spring test probes to contact the positive and negative terminals of the battery. However, it is difficult to ensure that the circular spring test probes can make full contact with the positive and negative terminals of this type of pouch battery.

[0006] Chinese patent CN11693742A discloses a high-current testing fixture for cylindrical batteries, characterized by comprising a base plate, a fixing platform, a front fixing fixture device, an arc-shaped frame, and a rear fixing fixture device. The base plate has a fixing platform at its front end, and the front fixing fixture device is located on one side of the fixing platform. The base plate has a groove at its rear end, and the rear fixing clamp is installed in the groove. Several arc-shaped brackets are provided between the front and rear fixing clamps. This solves the problem of fixing the base to the front and rear fixing clamps simultaneously. By simultaneously rotating the front and rear fixing clamps, the distance between them can be changed. During lithium battery testing, the lithium battery is positioned between the front and rear fixing clamps, which compress the lithium battery to achieve the testing purpose. This ensures even pressure distribution across the lithium battery, improving testing results. The rear end of the plate has a groove, and the rear fixing clamp is installed in the groove, allowing for adjustment of the rear fixing clamp's length and enabling testing of batteries of different lengths. The base plate has several arc-shaped brackets to test batteries of different diameters. Summary of the Invention

[0007] The purpose of this utility model is to solve the above-mentioned technical problems by providing a novel cylindrical battery clamping device. After the height of the cylindrical battery is fixed, the two test ends move and abut against the two ends of the cylindrical battery respectively. The distance between the two test ends matches the length of the cylindrical battery. The movement of the cylindrical battery along its length is restricted by the two test ends. While ensuring the reliability of the cylindrical battery test clamping device for the cylindrical battery, the applicability of the cylindrical battery test clamp to cylindrical batteries of different sizes and specifications is improved. The structure is simple and stable, and the clamping is convenient and reliable. The testing error is small, and the contact of the cylindrical battery can be easily adjusted. Moreover, the structure is simple, ingeniously designed, and has low manufacturing cost.

[0008] This utility model is achieved through the following technical solution:

[0009] A cylindrical battery clamping device includes a support assembly and a test clamping assembly. The support assembly has several layers of test clamping assemblies. The support assembly includes a bracket, a base plate, a support plate, and a clamping mounting plate. The base plate is mounted on the bracket, and support plates are located on both sides of the base plate. The clamping mounting plate is located on the support plate. The test clamping assembly is mounted on the clamping mounting plate. The test clamping assembly includes a test clamping base plate, a fixed probe component, a movable probe component, a cylindrical battery mounting base, a first guide rod, a second guide rod, and a fixing block. The fixed probe component is located on the left side of the test clamping base plate, and the movable probe component is located on the right side of the test clamping base plate. A fixing block is provided on the right side of the movable probe component. One end of the first guide rod passes through the movable probe component and is fixedly connected to one side of the fixing block. The other end of the first guide rod is fixedly connected to one side of the fixed probe component. One end of the second guide rod passes through the movable probe component and is fixedly connected to the other side of the fixing block. The other end of the second guide rod is fixedly connected to the other side of the fixed probe component. A cylindrical battery holder is provided in the middle of the test fixture base plate. A cylindrical battery is placed on the cylindrical battery holder. The fixed probe on the fixed probe component is aligned with the positive terminal of the cylindrical battery for testing. The movable probe on the movable probe component is aligned with the negative terminal of the cylindrical battery for testing.

[0010] As a further step, the fixed probe component includes a fixed probe support plate, a fixed probe, a fixed probe limiting block, and a fixed probe mounting plate. The fixed probe support plate is mounted on the left end of the test fixture base plate. A fixed probe limiting block is provided on the upper inner sidewall of the fixed probe support plate. A probe through hole is provided in the middle of the fixed probe limiting block. The fixed probe passes through the probe through hole in the middle of the fixed probe limiting block and is aligned with the positive electrode of the cylindrical battery for testing. A fixed probe mounting plate is provided on the top of the fixed probe support plate.

[0011] As a further step, the movable probe component includes a movable probe base, a movable probe, a movable probe mounting plate, a movable probe guide rod, a movable probe spring, a movable probe nut, and a movable probe limiting block. The movable probe base is mounted on the right end of the test fixture base plate. The movable probe base has guide rod through holes on both sides, a groove in the middle, and a movable probe mounting hole on the upper part. The movable probe mounting plate is mounted on the right side of the movable probe base and locked onto the movable probe base by the movable probe limiting block. The movable probe base has probe guide rod through holes on both sides of its rear end. The movable probe guide rod has a movable probe spring. One end of the movable probe guide rod is inserted into the probe guide rod through holes on both sides of the rear end of the movable probe base, and the other end of the movable probe guide rod is connected to the movable probe mounting plate and locked onto the movable probe mounting plate by the movable probe nut. One end of the first guide rod passes through the guide rod through hole on one side of the movable probe base and is fixedly connected to one side of the fixing block. One end of the second guide rod passes through the guide rod through hole on the other side of the movable probe base and is fixedly connected to the other side of the fixing block.

[0012] As a further step, a wire groove is provided on the right side of the movable probe base.

[0013] As a further step, the fixed probe mounting plate is L-shaped.

[0014] As a further step, the cylindrical battery holder is provided with a groove.

[0015] As a further step, a limiting protrusion is provided at the right end of the second guide rod, and the spacing of the limiting protrusion at the right end of the second guide rod can be adjusted within the guide rod through hole on the other side of the movable probe base.

[0016] The beneficial effects of this utility model are as follows: After the height of the cylindrical battery is fixed, the two test ends move and abut against the two ends of the cylindrical battery respectively. The distance between the two test ends matches the length of the cylindrical battery. The movement of the cylindrical battery along its length is restricted by the two test ends. While ensuring the reliability of the cylindrical battery test fixture in clamping the cylindrical battery, the applicability of the cylindrical battery test fixture to cylindrical batteries of different sizes and specifications is improved. The structure is simple and stable, and the clamping is convenient and reliable. The test error is small and the contact of the cylindrical battery can be easily adjusted. Moreover, the structure is simple, ingeniously designed, and has low manufacturing cost. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the cylindrical battery clamping device of this utility model;

[0018] Figure 2 This is an exploded view of the cylindrical battery clamping device of this utility model;

[0019] Figure 3 This is a schematic diagram of the support assembly structure of this utility model;

[0020] Figure 4 This is an exploded view of the support assembly of this utility model;

[0021] Figure 5 This is a schematic diagram of the test fixture assembly structure of this utility model;

[0022] Figure 6 This is an exploded view of the test fixture assembly of this utility model;

[0023] Figure 7 This is a schematic diagram of the fixed probe component structure of this utility model;

[0024] Figure 8 This is a schematic diagram of the exploded structure of the fixed probe component of this utility model;

[0025] Figure 9 This is a schematic diagram of the structure of the movable probe component of this utility model;

[0026] Figure 10 This is a schematic diagram of the exploded structure of the movable probe component of this utility model;

[0027] Reference numerals: 1. Support assembly; 11. Support; 12. Base plate; 13. Support plate; 14. Fixture mounting plate; 2. Test fixture assembly; 21. Test fixture base plate; 22. Fixed probe component; 220. Fixed probe support plate; 221. Fixed probe; 222. Fixed probe limiting block; 223. Fixed probe mounting plate; 23. Moving probe component; 230. Moving probe base; 2301. Wire groove; 2302. Guide rod passage Hole; 2303, Moving probe mounting hole; 2304, Probe guide rod through hole; 231, Moving probe; 232, Moving probe mounting plate; 233, Moving probe guide rod; 234, Moving probe spring; 235, Moving probe nut; 236, Moving probe limiting block; 24, Cylindrical battery holder; 240, Groove; 25, First guide rod; 26, Second guide rod; 260, Limiting protrusion; 27, Fixing block; 3, Cylindrical battery. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0030] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0031] For reference Figures 1-10 As shown, a cylindrical battery clamping device includes a support assembly 1 and a test clamping assembly 2. The support assembly 1 has several layers of test clamping assemblies 2. The support assembly 1 includes a support 11, a base plate 12, a support plate 13, and a clamping mounting plate 14. The base plate 12 is provided on the support 11, and the support plates 13 are provided on both sides of the base plate 12. The clamping mounting plate 14 is provided on the support plate 13. The test clamping assembly 2 is mounted on the clamping mounting plate 14. The test clamping assembly 2 includes a test clamping base plate 21, a fixed probe component 22, a movable probe component 23, a cylindrical battery fixing seat 24, a first guide rod 25, a second guide rod 26, and a fixing block 27. The fixed probe component 22 is provided on the left side of the test clamping base plate 21, and the movable probe component is provided on the right side of the test clamping base plate 21. Component 23, the right side of the movable probe component 23 is provided with a fixing block 27, one end of the first guide rod 25 passes through the movable probe component 23 and is fixedly connected to one side of the fixing block 27, the other end of the first guide rod 25 is fixedly connected to one side of the fixed probe component 22, one end of the second guide rod 26 passes through the movable probe component 23 and is fixedly connected to the other side of the fixing block 27, the other end of the second guide rod 26 is fixedly connected to the other side of the fixed probe component 22, the middle of the test fixture base plate 21 is provided with a cylindrical battery holder 24, the cylindrical battery holder 24 is provided with a cylindrical battery 3, the fixed probe 221 on the fixed probe component 22 is aligned with the positive terminal of the cylindrical battery 3 for testing, and the movable probe 231 on the movable probe component 23 is aligned with the negative terminal of the cylindrical battery 3 for testing.

[0032] Preferably, the fixed probe component 22 includes a fixed probe support plate 220, a fixed probe 221, a fixed probe limiting block 222, and a fixed probe mounting plate 223. The fixed probe support plate 220 is mounted on the left end of the test fixture base plate 21. The fixed probe limiting block 222 is provided on the upper inner side wall of the fixed probe support plate 220. The fixed probe limiting block 222 has a probe through hole in the middle. The fixed probe 221 passes through the probe through hole in the middle of the fixed probe limiting block 222 and is aligned with the positive electrode of the cylindrical battery 3 for testing. The fixed probe support plate 220 has a fixed probe mounting plate 223 on its top.

[0033] Preferably, the movable probe component 23 includes a movable probe base 230, a movable probe 231, a movable probe mounting plate 232, a movable probe guide rod 233, a movable probe spring 234, a movable probe nut 235, and a movable probe limiting block 236. The movable probe base 230 is mounted on the right end of the test fixture base plate 21. The movable probe base 230 has guide rod through holes 2302 on both sides, a groove in the middle, and a movable probe mounting hole 2303 on the upper part. The movable probe mounting plate 232 is mounted on the right side of the movable probe base 230 and locked onto the movable probe base 230 by the movable probe limiting block 236. The rear end of the 230 has probe guide rod through holes 2304 on both sides. The movable probe guide rod 233 is equipped with a movable probe spring 234. One end of the movable probe guide rod 233 is inserted into the probe guide rod through holes 2304 on both sides of the rear end of the movable probe base 230. The other end of the movable probe guide rod 233 is connected to the movable probe mounting plate 232 and is locked to the movable probe mounting plate 232 by the movable probe nut 235. One end of the first guide rod 25 passes through the guide rod through hole 2302 on one side of the movable probe base 230 and is fixedly connected to one side of the fixing block 27. One end of the second guide rod 26 passes through the guide rod through hole 2302 on the other side of the movable probe base 230 and is fixedly connected to the other side of the fixing block 27.

[0034] Preferably, the right side of the movable probe base 230 is provided with a wire groove 2301.

[0035] Preferably, the fixed probe mounting plate 223 is L-shaped.

[0036] Preferably, the cylindrical battery holder 24 is provided with a groove 240.

[0037] Preferably, the right end of the second guide rod 26 is provided with a limiting protrusion 260, and the limiting protrusion 260 at the right end of the second guide rod 26 can adjust the spacing within the guide rod through hole 2302 on the other side of the movable probe base 230.

[0038] Based on the disclosure and teachings of the above specification, those skilled in the art can make appropriate changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A cylindrical battery clamping device, characterized in that: The system includes a support assembly and a test fixture assembly. The support assembly has several layers of test fixture assemblies. The support assembly includes a bracket, a base plate, a support plate, and a fixture mounting plate. The base plate is mounted on the bracket, and support plates are located on both sides of the base plate. The fixture mounting plate is mounted on the support plates. The test fixture assembly is mounted on the fixture mounting plate. The test fixture assembly includes a test fixture base plate, a fixed probe component, a movable probe component, a cylindrical battery holder, a first guide rod, a second guide rod, and a fixing block. The fixed probe component is located on the left side of the test fixture base plate, and the movable probe component is located on the right side of the test fixture base plate. A fixing block is provided on the right side of the component. One end of the first guide rod passes through the movable probe component and is fixedly connected to one side of the fixing block. The other end of the first guide rod is fixedly connected to one side of the fixed probe component. One end of the second guide rod passes through the movable probe component and is fixedly connected to the other side of the fixing block. The other end of the second guide rod is fixedly connected to the other side of the fixed probe component. A cylindrical battery holder is provided in the middle of the base plate of the test fixture. A cylindrical battery is provided on the cylindrical battery holder. The fixed probe on the fixed probe component is aligned with the positive terminal of the cylindrical battery for testing. The movable probe on the movable probe component is aligned with the negative terminal of the cylindrical battery for testing.

2. The cylindrical battery clamping device according to claim 1, characterized in that: The fixed probe component includes a fixed probe support plate, a fixed probe, a fixed probe limiting block, and a fixed probe mounting plate. The fixed probe support plate is mounted on the left end of the test fixture base plate. A fixed probe limiting block is provided on the upper inner side wall of the fixed probe support plate. A probe through hole is provided in the middle of the fixed probe limiting block. The fixed probe passes through the probe through hole in the middle of the fixed probe limiting block and is aligned with the positive electrode of the cylindrical battery for testing. A fixed probe mounting plate is provided on the top of the fixed probe support plate.

3. The cylindrical battery clamping device according to claim 1, characterized in that: The movable probe component includes a movable probe base, a movable probe, a movable probe mounting plate, a movable probe guide rod, a movable probe spring, a movable probe nut, and a movable probe limiting block. The movable probe base is mounted on the right end of the test fixture base plate. Guide rod through holes are provided on both sides of the movable probe base, a groove is provided in the middle of the movable probe base, and a movable probe mounting hole is provided on the upper part of the movable probe base. The movable probe mounting plate is mounted on the right side of the movable probe base and locked onto the movable probe base by the movable probe limiting block. Probe guide rod through holes are provided on both sides of the rear end of the movable probe base. A movable probe spring is provided on the movable probe guide rod. One end of the movable probe guide rod is inserted into the probe guide rod through holes on both sides of the rear end of the movable probe base, and the other end of the movable probe guide rod is connected to the movable probe mounting plate and locked onto the movable probe mounting plate by the movable probe nut. One end of the first guide rod passes through the guide rod through hole on one side of the movable probe base and is fixedly connected to one side of the fixing block. One end of the second guide rod passes through the guide rod through hole on the other side of the movable probe base and is fixedly connected to the other side of the fixing block.

4. The cylindrical battery clamping device according to claim 3, characterized in that: The right side of the mobile probe base is provided with a wire groove.

5. The cylindrical battery clamping device according to claim 2, characterized in that: The fixed probe mounting plate is L-shaped.

6. The cylindrical battery clamping device according to claim 1, characterized in that: The cylindrical battery holder has a groove.

7. The cylindrical battery clamping device according to claim 1, characterized in that: The right end of the second guide rod is provided with a limiting protrusion, and the spacing of the limiting protrusion at the right end of the second guide rod can be adjusted within the guide rod through hole on the other side of the movable probe base.

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