Clamp structure for lithium battery detection

Through the design of the sleeve block and the bidirectional screw driving the arc clamp block, the existing lithium battery test fixtures cannot adapt to different models are solved, and efficient and universal lithium battery detection is achieved, which improves the detection accuracy and process smoothness.

CN223155058UActive Publication Date: 2025-07-25NOAH TESTING & CERTIFICATION (BEIJING) CO LTD
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Patent Information

Application Number
CN202421702516.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-18
Publication Date
2025-07-25
Estimated Expiration
2034-07-18

AI Technical Summary

Technical Problem

Existing lithium battery test fixtures cannot flexibly adapt to different models and sizes of lithium batteries, resulting in narrow testing range, inefficient and complex operation.

Method used

A clamp structure including a sleeve block and a bidirectional screw is designed to enhance clamping stability through the fitting curve of the arc-shaped clamping block, and combine elasticity and adjustability to achieve stable clamping and angle adjustment of different models of lithium batteries.

Benefits of technology

It improves the accuracy and efficiency of lithium battery detection, reduces position deviation, and realizes an efficient and general detection solution to adapt to multi-angle detection of different models of lithium batteries.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of clamps, and discloses a clamp structure for lithium battery detection, which comprises a working table, a fixed shaft is movably mounted in the working table, a rotating plate is fixedly mounted at the top of the fixed shaft, and a sliding chute is formed in the rotating plate. Compared with a traditional structure, the lithium battery clamping device has the advantages that the arc-shaped clamping blocks are driven to clamp a lithium battery through the cooperation between the sleeve block and the bidirectional screw rod, the clamping stability is enhanced through the design of the attaching curved surfaces of the arc-shaped clamping blocks, displacement caused by vibration is effectively prevented, the lithium battery is protected from being damaged by too large local pressure through uniform stress, and the service life of the lithium battery is prolonged. The integrity of the battery is guaranteed, the accurate alignment function reduces the position deviation, and the detection accuracy is improved; due to the elasticity and adjustability of the clamp, the clamp can flexibly adapt to lithium batteries of different models, an efficient and universal detection solution is achieved, and smoothness and accuracy of the detection process are promoted.
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Description

Technical Field

[0001] The utility model relates to the technical field of fixtures, and more specifically, to a fixture structure for lithium battery detection. Background Art

[0002] The fixture for lithium battery detection is a device designed specifically for testing, which firmly clamps the lithium battery and establishes a reliable electrical connection with the detection instrument. It can test key indicators such as voltage, current, internal resistance, and capacity, and these data are crucial for evaluating the performance, safety, and service life of lithium batteries. The use of the fixture ensures the accuracy of the test and is an indispensable tool in the quality detection of lithium batteries. Currently, the design of lithium battery test fixtures faces significant limitations. The structural singularity leads to a relatively narrow range of use. The fixture often cannot flexibly adapt to lithium batteries of different models and sizes, and it is difficult to achieve synchronous clamping and testing of multiple battery models. Therefore, in practical applications, users can often only test lithium batteries of specific models, which not only greatly limits the comprehensiveness of the test but also results in low test efficiency. Frequently replacing the fixture to adapt to different battery models not only consumes time and effort but also increases the operation complexity and affects the overall use effect and user experience. Content of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a fixture structure for lithium battery detection, which has the advantage of facilitating the clamping and fixing of lithium batteries.

[0004] To achieve the above object, the utility model provides the following technical solution: A fixture structure for lithium battery detection, including a workbench, a fixed shaft is movably installed inside the workbench, a rotating plate is fixedly installed at the top of the fixed shaft, a chute is opened inside the rotating plate, a sleeve block is movably installed inside the chute, a moving plate is fixedly installed at the top of the sleeve block, a telescopic rod is fixedly installed inside the moving plate, an arc-shaped clamping block is fixedly installed at one end of the telescopic rod, and a spring is fixedly installed between the arc-shaped clamping block and the moving plate;

[0005] A bidirectional lead screw is threadedly sleeved inside the sleeve block, and both ends of the bidirectional lead screw completely penetrate inside the fixed shaft. A first driven wheel is fixedly installed at one end of the bidirectional lead screw, a first motor is fixedly installed on the right side of the rotating plate, a first driving wheel is fixedly installed at one end of the first motor, and the first driving wheel and the first driven wheel are meshed with each other.

[0006] As a preferred technical solution of the utility model, a second driven wheel is fixedly installed at the bottom of the workbench, a second motor is fixedly installed at the bottom of the second driven wheel, a second driving wheel is fixedly installed at one end of the second motor, and the second driving wheel and the second driven wheel are meshed with each other by teeth.

[0007] As a preferred technical solution of the present utility model, a motor protection cover is fixedly installed on the outer surface of the second motor. Heat dissipation holes are provided inside the motor protection cover, and the heat dissipation holes are presented in a circumferential array form.

[0008] As a preferred technical solution of the present utility model, a fixing groove is provided inside the workbench. A limiting block is movably installed inside the fixing groove, and a toolbox is fixedly installed on the back of the limiting block.

[0009] As a preferred technical solution of the present utility model, a column is fixedly installed at the bottom of the workbench. A base is fixedly installed at the bottom of the column, and the base and the column are in pairs, with a total of four groups at the bottom of the workbench.

[0010] As a preferred technical solution of the present utility model, a support seat is fixedly installed on the right side of the rotating plate, and the inside of the support seat is in a U-shaped form.

[0011] As a preferred technical solution of the present utility model, an anti-slip pad is fixedly installed inside the arc-shaped clamping block, and the anti-slip pad is made of rubber material.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. Compared with the traditional structure, through the cooperation between the sleeve block and the bidirectional lead screw, the arc-shaped clamping block drives the lithium battery. The design of the fitting curved surface of the arc-shaped clamping block enhances the clamping stability, effectively prevents displacement caused by vibration, evenly distributes the force to protect the lithium battery from excessive local pressure, and ensures the integrity of the battery; the precise alignment function reduces the position deviation and improves the detection accuracy; in addition, its elasticity and adjustability enable the fixture to flexibly adapt to different models of lithium batteries, realizing an efficient and universal detection solution, and promoting the smoothness and accuracy of the detection process.

[0014] 2. Compared with the traditional structure, through the cooperation between the sleeve block and the bidirectional lead screw, the arc-shaped clamping block drives the lithium battery. The design of the fitting curved surface of the arc-shaped clamping block enhances the clamping stability, effectively prevents displacement caused by vibration, evenly distributes the force to protect the lithium battery from excessive local pressure, and ensures the integrity of the battery; the precise alignment function reduces the position deviation and improves the detection accuracy; in addition, its elasticity and adjustability enable the fixture to flexibly adapt to different models of lithium batteries, realizing an efficient and universal detection solution, and promoting the smoothness and accuracy of the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front three-dimensional external structure schematic diagram of the present utility model;

[0016] Figure 2 Schematic diagram of the three-dimensional external structure of the side of the utility model

[0017] Figure 3 The utility model Figure 2 Enlarged structure diagram at position A in

[0018] Figure 4 Schematic diagram of the cross-sectional structure of the workbench of the utility model

[0019] Figure 5 Schematic diagram of the structure of the arc-shaped clamping block of the utility model

[0020] Figure 6 Schematic diagram of the cross-sectional structure of the arc-shaped clamping block of the utility model

[0021] In the figure: 1, workbench; 2, rotating plate; 3, fixed shaft; 4, moving plate; 5, arc-shaped clamping block; 6, anti-slip pad; 7, motor 1; 8, support seat; 9, spring; 10, motor protection cover; 11, column; 12, base; 13, heat dissipation hole; 14, fixing groove; 15, limit block; 16, toolbox; 17, driven pulley 1; 18, driving pulley 1; 19, sliding groove; 20, driven pulley 2; 21, driving pulley 2; 22, motor 2; 23, bidirectional lead screw; 24, sleeve block; 25, telescopic rod. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figures 1 to 6 shown, the present utility model provides a fixture structure for lithium battery detection, including a workbench 1. A fixed shaft 3 is movably installed inside the workbench 1. A rotating plate 2 is fixedly installed at the top of the fixed shaft 3. A sliding groove 19 is opened inside the rotating plate 2. A sleeve block 24 is movably installed inside the sliding groove 19. A moving plate 4 is fixedly installed at the top of the sleeve block 24. A telescopic rod 25 is fixedly installed inside the inner side of the moving plate 4. An arc-shaped clamping block 5 is fixedly installed at one end of the telescopic rod 25. A spring 9 is fixedly installed between the arc-shaped clamping block 5 and the moving plate 4;

[0024] The internal thread of the sleeve block 24 is sleeved with a bidirectional lead screw 23, and both ends of the bidirectional lead screw 23 completely penetrate through the inside of the fixed shaft 3. One end of the bidirectional lead screw 23 is fixedly installed with a first driven wheel 17. A first motor 7 is fixedly installed on the right side of the rotating plate 2. One end of the first motor 7 is fixedly installed with a first driving wheel 18, and the first driving wheel 18 meshes with the first driven wheel 17.

[0025] Before the lithium battery is detected, the staff needs to clamp and fix the lithium battery. By placing the lithium battery on the top of the rotating plate 2, then turning on the first motor 7, the first motor 7 drives the first driving wheel 18 to rotate. Through the meshing between the first driving wheel 18 and the first driven wheel 17, the first driving wheel 18 drives the first driven wheel 17 to rotate. Then, the first driven wheel 17 drives the bidirectional lead screw 23 to rotate inside the sleeve block 24, so that the two sleeve blocks 24 approach the outer surface of the lithium battery inside the sliding groove 19. The sleeve block 24 drives the moving plate 4 to move, and the moving plate 4 squeezes the spring 9 and the telescopic rod 25. Then, the spring 9 and the telescopic rod 25 squeeze the arc-shaped clamping block 5, and the arc-shaped clamping block 5 clamps and fixes the lithium battery, thus completing the clamping and fixing of the lithium battery.

[0026] Before the lithium battery is detected, the lithium battery needs to be clamped and fixed. By placing the lithium battery on the top of the rotating plate 2, then turning on the first motor 7, the first motor 7 drives the first driving wheel 18 to rotate. The first driving wheel 18 drives the first driven wheel 17 to rotate. Then, the first driven wheel 17 drives the bidirectional lead screw 23 to rotate inside the sleeve block 24, so that the two sleeve blocks 24 approach the outer surface of the lithium battery inside the sliding groove 19. The sleeve block 24 drives the moving plate 4 to move, and the moving plate 4 squeezes the spring 9 and the telescopic rod 25. Then, the spring 9 and the telescopic rod 25 squeeze the arc-shaped clamping block 5, and the arc-shaped clamping block 5 clamps and fixes the lithium battery. Compared with the traditional structure, this structure drives the arc-shaped clamping block 5 to clamp the lithium battery through the cooperation between the sleeve block 24 and the bidirectional lead screw 23. The design of the fitting curved surface of the arc-shaped clamping block 5 enhances the clamping stability, effectively prevents displacement caused by vibration, uniformly distributes the force to protect the lithium battery from excessive local pressure, and ensures the integrity of the battery; the precise alignment function reduces the position deviation and improves the detection accuracy; in addition, its elasticity and adjustability enable the fixture to flexibly adapt to different models of lithium batteries, realizing an efficient and universal detection solution, and promoting the smoothness and precision of the detection process.

[0027] Among them, a second driven wheel 20 is fixedly installed at the bottom of the workbench 1, a second motor 22 is fixedly installed at the bottom of the second driven wheel 20, a second driving wheel 21 is fixedly installed at one end of the second motor 22, and the second driving wheel 21 meshes with the second driven wheel 20 by teeth.

[0028] After the staff finishes clamping the lithium battery, it is necessary to detect the lithium battery at different angles. By turning on the second motor 22, the second motor 22 drives the second driving wheel 21 to rotate. Through the tooth engagement between the second driving wheel 21 and the second driven wheel 20, the second driving wheel 21 drives the second driven wheel 20 to rotate. Then, the second driven wheel 20 drives the fixed shaft 3 to rotate, and the fixed shaft 3 drives the rotating plate 2 to rotate. The rotating plate 2 drives the lithium battery to adjust the angle, thus completing the angle adjustment of the lithium battery.

[0029] After the clamping of the lithium battery is completed, it is necessary to detect the lithium battery at different angles. By turning on the second motor 22, the second motor 22 drives the second driving wheel 21 to rotate, and the second driving wheel 21 drives the second driven wheel 20 to rotate. Then, the second driven wheel 20 drives the fixed shaft 3 and the rotating plate 2 to rotate synchronously. The rotating plate 2 drives the lithium battery to adjust the angle. Compared with the traditional structure, this structure, through the cooperation between the second driven wheel 20 and the second driving wheel 21, facilitates the angle adjustment of the lithium battery. The lithium battery detection has achieved a double improvement in comprehensiveness and accuracy. The multi-angle detection ensures that all parts of the lithium battery, such as the positive and negative electrodes and the side, are carefully inspected, and performance differences and potential problems can be discovered in time. At the same time, the precise alignment reduces the position deviation and improves the measurement accuracy. This function also gives the detection process higher flexibility and adaptability. Whether it is to meet different detection requirements or adapt to various models of lithium batteries, it can be quickly adjusted to ensure the smoothness and efficiency of the detection process.

[0030] Among them, a motor protection cover 10 is fixedly installed on the outer surface of the second motor 22. Heat dissipation holes 13 are opened inside the motor protection cover 10, and the heat dissipation holes 13 are presented in a circumferential array form.

[0031] Since the heat dissipation holes 13 are presented in a circumferential array inside the motor protection cover 10, it is convenient for the inside of the second motor 22 to dissipate heat, ensuring the temperature of the second motor 22 during operation and improving the service efficiency and service life of the second motor 22.

[0032] Among them, a fixed slot 14 is opened inside the workbench 1. A limit block 15 is movably installed inside the fixed slot 14, and a toolbox 16 is fixedly installed on the back of the limit block 15.

[0033] By fixing the limit block 15 on the front of the toolbox 16, then holding the toolbox 16 by hand, and slowly putting the limit block 15 into the inside of the fixed slot 14 through the toolbox 16. By adding the fixed slot 14, various tools, spare parts, and auxiliary equipment required during the detection process can be stored in an orderly manner. When the detection personnel need to change tools and adjust the fixture, they can quickly and conveniently take them out from it, avoiding the time consumed in searching for tools, thus improving the work efficiency.

[0034] Among them, a column 11 is fixedly installed at the bottom of the workbench 1, and a base 12 is fixedly installed at the bottom of the column 11. The base 12 and the column 11 are grouped in pairs, and there are four groups at the bottom of the workbench 1.

[0035] Through the cooperation between the base 12 and the column 11, it is convenient to support the workbench 1. The stable support of the workbench 1 enables the fixture to more accurately position the lithium battery, reducing the positioning error caused by the shaking of the fixture. This helps to shorten the detection time, improve the detection efficiency, and reduce the labor cost increased due to repeated positioning.

[0036] Among them, a support seat 8 is fixedly installed on the right side of the rotating plate 2, and the inside of the support seat 8 presents a U-shaped shape.

[0037] Since the inside of the support seat 8 presents a U-shaped shape inside the rotating plate 2, it is convenient to support the first motor 7, reducing the shaking of the first motor 7 during operation and ensuring the stability of the first motor 7 during operation.

[0038] Among them, an anti-slip pad 6 is fixedly installed inside the arc-shaped clamping block 5, and the anti-slip pad 6 is made of rubber material.

[0039] Since the anti-slip pad 6 is made of rubber material inside the arc-shaped clamping block 5, it can significantly improve the friction between the object and the contact surface, effectively stabilizing the lithium battery and preventing sliding or accidental movement.

[0040] The working principle and usage process of the present utility model:

[0041] Before the lithium battery is detected, the staff needs to clamp and fix the lithium battery. By placing the lithium battery on the top of the rotating plate 2, then turning on the first motor 7, the first motor 7 drives the first driving wheel 18 to rotate. Through the meshing between the first driving wheel 18 and the first driven wheel 17, the first driving wheel 18 drives the first driven wheel 17 to rotate. Then the first driven wheel 17 drives the bidirectional lead screw 23 to rotate inside the sleeve block 24, so that the two sleeve blocks 24 approach the outer surface of the lithium battery inside the sliding groove 19. The sleeve block 24 drives the moving plate 4 to move, and then the moving plate 4 squeezes the spring 9 and the telescopic rod 25. Through the spring 9 and the telescopic rod 25, the arc-shaped clamping block 5 is squeezed, and through the arc-shaped clamping block 5, the lithium battery is clamped and fixed, thus completing the clamping and fixing of the lithium battery.

[0042] After the staff complete the clamping of the lithium battery, it is necessary to detect the lithium battery at different angles. By turning on the second motor 22, the second driving wheel 21 is driven to rotate by the second motor 22. Through the tooth engagement between the second driving wheel 21 and the second driven wheel 20, the second driven wheel 20 is driven to rotate by the second driving wheel 21. Then, the fixed shaft 3 is driven to rotate by the second driven wheel 20, and the rotating plate 2 is driven to rotate by the fixed shaft 3. The lithium battery is driven to adjust the angle by the rotating plate 2, thus completing the angle adjustment of the lithium battery.

[0043] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0044] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture structure for lithium battery detection, comprising a workbench (1), characterized in that: Inside the workbench (1), a fixed shaft (3) is movably installed. At the top of the fixed shaft (3), a rotating plate (2) is fixedly installed. Inside the rotating plate (2), a sliding groove (19) is formed. Inside the sliding groove (19), a sleeve block (24) is movably installed. At the top of the sleeve block (24), a moving plate (4) is fixedly installed. Inside the moving plate (4), a telescopic rod (25) is fixedly installed. At one end of the telescopic rod (25), an arc-shaped clamping block (5) is fixedly installed. Between the arc-shaped clamping block (5) and the moving plate (4), a spring (9) is fixedly installed; Inside the sleeve block (24), a bidirectional lead screw (23) is threadedly sleeved. The two ends of the bidirectional lead screw (23) completely penetrate inside the fixed shaft (3). At one end of the bidirectional lead screw (23), a driven wheel one (17) is fixedly installed. On the right side of the rotating plate (2), a motor one (7) is fixedly installed. At one end of the motor one (7), a driving wheel one (18) is fixedly installed. And the driving wheel one (18) meshes with the driven wheel one (17).

2. The fixture structure for lithium battery detection according to claim 1, wherein: At the bottom of the workbench (1), a driven wheel two (20) is fixedly installed. At the bottom of the driven wheel two (20), a motor two (22) is fixedly installed. At one end of the motor two (22), a driving wheel two (21) is fixedly installed. And the driving wheel two (21) meshes with the driven wheel two (20) by teeth.

3. The fixture structure for lithium battery detection according to claim 2, characterized in that: On the outer surface of the motor two (22), a motor protection cover (10) is fixedly installed. Inside the motor protection cover (10), heat dissipation holes (13) are formed. And the heat dissipation holes (13) are presented in a circumferential array form.

4. A fixture structure for lithium battery detection according to claim 1, characterized in that: Inside the workbench (1), a fixed groove (14) is formed. Inside the fixed groove (14), a limit block (15) is movably installed. On the back of the limit block (15), a toolbox (16) is fixedly installed.

5. A fixture structure for lithium battery detection according to claim 1, characterized in that: At the bottom of the workbench (1), a column (11) is fixedly installed. At the bottom of the column (11), a base (12) is fixedly installed. And the base (12) and the column (11) are in pairs, with a total of four groups at the bottom of the workbench (1).

6. The fixture structure for lithium battery detection according to claim 1, characterized in that: On the right side of the rotating plate (2), a support seat (8) is fixedly installed. And the inside of the support seat (8) presents a U-shaped shape.

7. A fixture structure for lithium battery detection according to claim 1, characterized in that: Inside the arc-shaped clamping block (5), an anti-slip pad (6) is fixedly installed. And the anti-slip pad (6) is made of rubber material.