A new energy automobile battery detection device

Through the coordinated operation of the spatial clamping mechanism, the support replacement mechanism, and the snap-fit ​​auxiliary mechanism, the three-dimensional precise positioning of new energy vehicle batteries and the rapid replacement of the support base are achieved, solving the problems of poor positioning effect and inconvenient support base replacement in battery testing devices, and improving testing accuracy and efficiency.

CN224569240UActive Publication Date: 2026-07-28ANDY (SUZHOU) TESTING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANDY (SUZHOU) TESTING TECH CO LTD
Filing Date
2025-08-13
Publication Date
2026-07-28

AI Technical Summary

Technical Problem

Existing battery testing devices for new energy vehicles have poor battery positioning performance and lack a way to quickly replace battery support brackets, making it difficult to adapt to different battery models and affecting testing efficiency and accuracy.

Method used

Employing a spatial clamping mechanism, a support replacement mechanism, and a snap-fit ​​auxiliary mechanism, the system achieves precise three-dimensional positioning of the battery and rapid disassembly and installation of the support base through the coordinated operation of push-pull hydraulic cylinders, lifting hydraulic cylinders, snap-fit ​​rods, and embedding plates, thereby enhancing connection stability and adaptability.

Benefits of technology

It improves the precision and accuracy of battery testing, enhances adaptability and testing efficiency for different battery models, and reduces equipment adjustment and maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a new energy vehicle battery testing device, including a testing platform, a moving frame, a spatial clamping mechanism, a support replacement mechanism, and a snap-fit ​​auxiliary mechanism. The spatial clamping mechanism includes a lifting hydraulic cylinder, a clamping assembly, a push-pull hydraulic cylinder, a push-pull frame, and a support base. The support replacement mechanism includes a snap-fit ​​tube, a snap-fit ​​rod, an embedding groove, an outer rotating plate, an embedding ring, a push-pull rod, and an embedding plate. The spatial clamping mechanism achieves precise positioning of the battery in three-dimensional space through the coordinated work of the push-pull hydraulic cylinder and the lifting hydraulic cylinder. The placement groove on the support base further enhances the stability of the battery. The support replacement mechanism adopts a clever cooperation between the snap-fit ​​rod and the embedding plate. Through the rotation drive of the outer rotating plate and the embedding ring, the support base can be quickly disassembled and installed. This design overcomes the shortcomings of traditional devices that lack a quick replacement method, and greatly improves the flexibility and efficiency of adapting to different battery models.
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Description

Technical Field

[0001] This utility model relates to the field of battery testing technology, and more specifically, to a testing device for new energy vehicle batteries. Background Technology

[0002] In existing technologies, the positioning effect of the battery to be tested in a new energy vehicle battery testing device is poor, and there is a lack of a way to quickly replace the battery support base, making it difficult to be applicable to different battery models. This problem seriously restricts the efficiency and accuracy of new energy vehicle battery testing.

[0003] First, existing battery testing devices generally use simple clamps or brackets, lacking multi-degree-of-freedom spatial positioning capabilities. As complex energy storage devices, batteries vary in shape, size, and interface location depending on the vehicle model, making it difficult for existing devices to accurately align with the testing points of different batteries. When operators attempt to place the battery in the testing position, repeated adjustments are often necessary, which is not only time-consuming but also prone to causing poor battery contact, leading to distorted testing data.

[0004] Secondly, most existing battery testing devices use a fixed support structure, lacking modularity and quick replacement capabilities. When testing different battery models, the entire support base often needs to be disassembled and replaced, sometimes even requiring redesign and manufacturing of a new support base. This cumbersome replacement process not only significantly extends equipment adjustment time but also increases maintenance costs and spare parts inventory pressure. Given the rapid iteration of new energy vehicle technology and frequent battery model updates, this inflexible design can no longer meet the needs of industry development. Utility Model Content

[0005] (a) Technical problems to be solved In view of the problems existing in the prior art, this utility model provides a new energy vehicle battery testing device to solve the technical problems mentioned in the background art, such as poor positioning effect of the battery to be tested, lack of a quick replacement method for battery support base, and difficulty in applying to different battery models.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a new energy vehicle battery testing device, comprising a testing platform, a moving frame, a spatial clamping mechanism, a support replacement mechanism, and a snap-fit ​​auxiliary mechanism. The spatial clamping mechanism includes a lifting hydraulic cylinder, a clamping assembly, a push-pull hydraulic cylinder, a push-pull frame, and a support base. The push-pull hydraulic cylinder is mounted on the moving frame, the push-pull frame is mounted on one end of the push-pull hydraulic cylinder, the lifting hydraulic cylinder is mounted on the push-pull frame, the clamping assembly is mounted on one end of the lifting hydraulic cylinder, and the support base is mounted on the bottom end of the moving frame. The support replacement mechanism includes a snap-fit ​​tube, a snap-fit ​​rod, an embedding groove, an outer rotating plate, an embedding ring, a push-pull rod, and an embedding plate. The snap-fit ​​rod is mounted on the bottom end of the support base, the embedding groove is located on the side wall of the snap-fit ​​rod, the embedding ring is rotatably mounted within the side wall of the snap-fit ​​tube, the outer rotating plate is mounted on the outer end of the embedding ring, and the embedding plate rotates within the side wall of the snap-fit ​​tube. The two ends of the push-pull rod are rotatably connected to the embedding plate and the embedding ring, and the push-pull rod can push or pull the embedding plate into or away from the embedding groove.

[0007] The present invention is further configured such that the snap-fit ​​auxiliary mechanism includes a limiting ring, a rotating plate, a fixed ring, a positioning spring rod, and a positioning hole. The limiting ring is rotatably mounted on the outer wall of the snap-fit ​​tube, the outer rotating plate is connected to the limiting ring, the fixed ring is fixedly mounted on the outer wall of the snap-fit ​​tube, multiple sets of positioning spring rods are arranged in a ring on the outer wall of the fixed ring, the rotating plate is mounted on the bottom end of the limiting ring, and different positioning spring rods extend into the positioning holes on the rotating plate in stages, so that the rotating plate and the limiting ring rotate stably, and the embedding plate is stably embedded in the embedding groove.

[0008] The present invention is further configured such that a lead screw adjustment assembly is installed at the top end of the detection table, and the moving frame is installed on the lead screw adjustment assembly. The lead screw adjustment assembly realizes the precise linear movement of the moving frame, thereby improving the positioning accuracy.

[0009] The present invention is further configured such that electric push components are symmetrically installed at the bottom end of the moving frame, and a detection component is installed on the electric push component. The detection component is electrically connected to the battery on the clamping component. The electric push components are symmetrically installed at the bottom of the moving frame to ensure the balance of battery detection.

[0010] The present invention is further configured such that a placement groove is provided on the support base, and the battery on the clamping component in the spatial clamping mechanism is embedded in the placement groove. The support base provides stable support for the entire clamping system and is provided with a placement groove for battery positioning, thereby enhancing system stability.

[0011] The present invention is further configured such that a connecting plate is installed at the bottom end of the side wall of the card tube, and the connecting plate is fixedly installed at the bottom end of the movable frame, thereby fixing the card tube and the movable frame and providing a stable structural connection.

[0012] The present invention is further configured such that a guide groove is provided on the rotating ring, and a limiting block is installed in the side wall of the clamping tube. The limiting block is limited to sliding within the guide groove. The guide groove and the limiting block limit the movement range of the rotating ring, ensuring precise and controllable movement.

[0013] The present invention is further configured such that the snap-fit ​​rod can pass through the support base and the movable frame, and extend into the snap-fit ​​tube to engage in a detachable snap-fit. The snap-fit ​​rod passes through the support base and the movable frame to realize the quick connection of the upper and lower structures, which facilitates the assembly and disassembly of the support base.

[0014] (III) Beneficial Effects Compared with the prior art, this utility model provides a new energy vehicle battery testing device, which has the following beneficial effects: This invention features a spatial clamping mechanism that, through the coordinated operation of a push-pull cylinder and a lifting cylinder, achieves precise positioning of the battery in three-dimensional space. The placement slot on the support further enhances the battery's stability, effectively solving the problem of poor battery positioning in traditional devices and improving detection accuracy and the reliability of electrical connections.

[0015] This utility model is equipped with a support replacement mechanism. The support replacement mechanism adopts the ingenious cooperation of the snap rod and the embedded plate. Through the rotation drive of the outer rotating plate and the embedded rotating ring, the support seat can be quickly disassembled and installed. This design overcomes the defect of traditional devices lacking a quick replacement method and greatly improves the flexibility and efficiency of adapting to different battery models.

[0016] This utility model is equipped with a snap-fit ​​auxiliary mechanism. The snap-fit ​​auxiliary mechanism uses a limiting ring, a rotating plate and a positioning spring rod to form a multi-stage positioning system to ensure that the embedded plate is stably embedded in the embedded groove. This design enhances the reliability and stability of the connection, prevents loosening or detachment during the detection process, and further improves the adaptability and detection accuracy of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model; Figure 2 This is a schematic diagram of the moving frame and spatial clamping mechanism in this utility model; Figure 3 This is a structural schematic diagram of the movable frame from the bottom view in this utility model; Figure 4 This is a schematic diagram of the support replacement mechanism and the snap-fit ​​auxiliary mechanism in this utility model; Figure 5 This is a schematic diagram of the internal structure of the support replacement mechanism and the snap-fit ​​auxiliary mechanism in this utility model.

[0018] In the diagram: 1. Testing platform; 2. Moving frame; 3. Lifting cylinder; 4. Clamping assembly; 5. Push-pull cylinder; 6. Push-pull bracket; 7. Support base; 8. Snap-fit ​​tube; 9. Snap-fit ​​rod; 10. Embedding groove; 11. Outer rotating plate; 12. Embedding ring; 13. Push-pull rod; 14. Embedding plate; 15. Limiting ring; 16. Rotating plate; 17. Fixing ring; 18. Positioning spring rod; 19. Positioning hole; 20. Screw adjustment assembly; 21. Electric actuator assembly; 22. Testing assembly; 23. Placement groove; 24. Connecting plate; 25. Guide groove; 26. Limiting block. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0021] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0022] Please see Figures 1-5 A new energy vehicle battery testing device includes a testing platform 1, a movable frame 2, a spatial clamping mechanism, a support replacement mechanism, and a snap-fit ​​auxiliary mechanism. The spatial clamping mechanism includes a lifting cylinder 3, a clamping assembly 4, a push-pull cylinder 5, a push-pull frame 6, and a support base 7. The push-pull cylinder 5 is mounted on the movable frame 2, the push-pull frame 6 is mounted on one end of the push-pull cylinder 5, the lifting cylinder 3 is mounted on the push-pull frame 6, the clamping assembly 4 is mounted on one end of the lifting cylinder 3, and the support base 7 is mounted on the bottom end of the movable frame 2. The support replacement mechanism includes a snap-fit ​​pipe 8. The components include a snap-fit ​​rod 9, an embedded groove 10, an outer rotating plate 11, an embedded rotating ring 12, a push-pull rod 13, and an embedded plate 14. The snap-fit ​​rod 9 is installed at the bottom end of the support base 7. The embedded groove 10 is located on the side wall of the snap-fit ​​rod 9. The embedded rotating ring 12 is rotatably installed inside the side wall of the snap-fit ​​tube 8. The outer rotating plate 11 is installed at the outer end of the embedded rotating ring 12. The embedded plate 14 rotates inside the side wall of the snap-fit ​​tube 8. The two ends of the push-pull rod 13 are rotatably connected to the embedded plate 14 and the embedded rotating ring 12. The push-pull rod 13 can push or pull the embedded plate 14 to extend into or away from the embedded groove 10.

[0023] In this embodiment, the spatial clamping mechanism achieves precise positioning and clamping of the battery through multi-stage drive. First, the push-pull cylinder 5 drives the push-pull bracket 6 to move back and forth on the moving frame 2 to adjust the horizontal position of the battery. Then, the lifting cylinder 3 drives the clamping assembly 4 to move up and down to adjust the vertical position of the battery. When the battery reaches the appropriate position, the clamping assembly 4 clamps and fixes the battery. The support base 7 is located at the bottom of the moving frame 2, providing stable support for the entire clamping system, and is provided with a placement slot 23 for battery placement. The support replacement mechanism realizes the support... The installation and removal of the base 7 facilitates the use of different battery models. The snap-fit ​​rod 9 is installed at the bottom of the support base 7 and can pass through the movable frame 2 and extend into the snap-fit ​​tube 8. The snap-fit ​​ring 12 is limited to rotate within the side wall of the snap-fit ​​tube 8. The outer rotating plate 11 is connected to the outer end of the snap-fit ​​ring 12. When connection is required, the snap-fit ​​ring 12 is rotated by rotating the outer rotating plate 11. The snap-fit ​​ring 12 drives the embedded plate 14 to rotate through the push-pull rod 13, so that the embedded plate 14 extends into the embedded groove 10 on the side wall of the snap-fit ​​rod 9 to form a stable connection. To disconnect, the operation is reversed.

[0024] The snap-fit ​​auxiliary mechanism includes a limiting ring 15, a rotating plate 16, a fixed ring 17, positioning spring rods 18, and positioning holes 19. The limiting ring 15 is mounted on the outer wall of the snap-fit ​​tube 8 to limit rotation. The outer rotating plate 11 is connected to the limiting ring 15. The fixed ring 17 is fixedly mounted on the outer wall of the snap-fit ​​tube 8. Multiple sets of positioning spring rods 18 are arranged in a ring on the outer wall of the fixed ring 17. The rotating plate 16 is mounted on the bottom end of the limiting ring 15. Different positioning spring rods 18 extend into the positioning holes 19 on the rotating plate 16 in stages, so that the rotating plate 16 and the limiting ring 15 rotate stably, and the embedded plate 14 is stably embedded into the embedded groove 10.

[0025] In this embodiment, the snap-fit ​​auxiliary mechanism enhances the stability of the connection through the system of limiting ring 15, rotating plate 16 and positioning spring rod 18. The limiting ring 15 limits the rotation on the outer wall of the snap-fit ​​tube 8 and connects with the outer rotating plate 11. Multiple sets of positioning spring rods 18 on the fixing ring 17 can extend into the positioning holes 19 on the rotating plate 16 in stages, providing multi-level positioning for the rotating plate 16 and the limiting ring 15, ensuring that the embedded plate 14 can be stably embedded in the embedded groove 10, and preventing loosening or detachment during operation.

[0026] Please see Figures 1-5As a supplementary embodiment of a new energy vehicle battery testing device for a space clamping mechanism, a support replacement mechanism, and a snap-fit ​​auxiliary mechanism: A lead screw adjustment assembly 20 is installed at the top end of the testing platform 1, and a moving frame 2 is installed on the lead screw adjustment assembly 20. An electric push assembly 21 is symmetrically installed at the bottom end of the moving frame 2, and a testing assembly 22 is installed on the electric push assembly 21. The testing assembly 22 is electrically connected to the battery on the clamping assembly 4. A placement groove 23 is opened on the support base 7, and the battery on the clamping assembly 4 in the space clamping mechanism is embedded in the placement groove 23. A connecting plate 24 is installed at the bottom end of the side wall of the snap-fit ​​tube 8, and the connecting plate 24 is fixedly installed at the bottom end of the moving frame 2. A guide groove 25 is opened on the snap-fit ​​ring 12, and a limiting block 26 is installed in the side wall of the snap-fit ​​tube 8. The limiting block 26 is restricted to sliding in the guide groove 25. The snap-fit ​​rod 9 can pass through the support base 7 and the moving frame 2, and extend into the snap-fit ​​tube 8 for detachable snap-fit.

[0027] More specifically, the lead screw adjustment assembly 20 drives the moving frame 2 to the appropriate position, the electric push assembly 21 and the detection assembly 22 are ready, the spatial clamping mechanism is activated, the push-pull cylinder 5 and the lifting cylinder 3 work together to enable the clamping assembly 4 to accurately grasp the battery, the clamping assembly 4 moves the battery to the placement slot 23 on the support seat 7, so that the battery is stably positioned, the snap-fit ​​rod 9 of the support replacement mechanism passes through the support seat 7 and the moving frame 2, and extends into the snap-fit ​​tube 8, and drives the embedded plate 14 to extend into the embedded slot 10 by rotating the outer rotating plate 11, forming a firm connection, the positioning spring rod 18 of the snap-fit ​​auxiliary mechanism extends into the positioning hole 19 on the rotating plate 16 to ensure the connection system is stable and reliable, the detection assembly 22 on the electric push assembly 21 establishes an electrical connection with the battery on the clamping assembly 4, and the battery performance test begins. If it is necessary to replace the support seat 7 with a different model to suit a different model of battery, the snap-fit ​​auxiliary mechanism and the support replacement mechanism operate in reverse order to achieve quick disassembly and prepare for the next round of testing.

[0028] In summary, during the use or operation of the overall equipment: when the spatial clamping mechanism is required, the spatial clamping mechanism achieves precise positioning and clamping of the battery through multi-stage drive. First, the push-pull hydraulic cylinder 5 drives the push-pull frame 6 to move back and forth on the moving frame 2 to adjust the horizontal position of the battery. Then, the lifting hydraulic cylinder 3 drives the clamping component 4 to move up and down to adjust the vertical position of the battery. When the battery reaches the appropriate position, the clamping component 4 clamps and fixes the battery. The support base 7 is located at the bottom of the moving frame 2, providing stable support for the entire clamping system, and is provided with a placement slot 23 for battery placement.

[0029] When the support replacement mechanism is needed, it enables the installation and removal of the support base 7, making it suitable for different battery models. The snap-fit ​​rod 9 is installed at the bottom of the support base 7 and can pass through the movable frame 2 and extend into the snap-fit ​​tube 8. The snap-fit ​​rotating ring 12 is limited to rotate within the side wall of the snap-fit ​​tube 8. The outer rotating plate 11 is connected to the outer end of the snap-fit ​​rotating ring 12. When connection is required, the snap-fit ​​rotating ring 12 is rotated by rotating the outer rotating plate 11. The snap-fit ​​rotating ring 12 drives the embedded plate 14 to rotate through the push-pull rod 13, so that the embedded plate 14 extends into the embedded groove 10 on the side wall of the snap-fit ​​rod 9 to form a stable connection. To disconnect, the operation is reversed.

[0030] When the snap-fit ​​auxiliary mechanism is required to operate, the snap-fit ​​auxiliary mechanism enhances the stability of the connection through the system of limit ring 15, rotating plate 16 and positioning spring rod 18. The limit ring 15 limits the rotation on the outer wall of the snap-fit ​​tube 8 and connects with the outer rotating plate 11. Multiple sets of positioning spring rods 18 on the fixed ring 17 can extend into the positioning holes 19 on the rotating plate 16 in stages, providing multi-level positioning for the rotating plate 16 and the limit ring 15, ensuring that the embedded plate 14 can be stably embedded in the embedded groove 10, and preventing loosening or detachment during operation.

[0031] The lead screw adjustment assembly 20 drives the moving frame 2 to the appropriate position. The electric push assembly 21 and the detection assembly 22 are ready. The spatial clamping mechanism is activated. The push-pull cylinder 5 and the lifting cylinder 3 work together to enable the clamping assembly 4 to accurately grasp the battery. The clamping assembly 4 moves the battery to the placement slot 23 on the support seat 7, making the battery stably positioned. The locking rod 9 of the support replacement mechanism passes through the support seat 7 and the moving frame 2 and extends into the locking tube 8. By rotating the outer rotating plate 11, the embedded plate 14 is driven to extend into the embedded slot 10 to form a firm connection. The positioning spring rod 18 of the locking auxiliary mechanism extends into the positioning hole 19 on the rotating plate 16 to ensure that the connection system is stable and reliable. The detection assembly 22 on the electric push assembly 21 establishes an electrical connection with the battery on the clamping assembly 4 and begins battery performance testing. If it is necessary to replace the support seat 7 with a different model to accommodate a different model of battery, the locking auxiliary mechanism and the support replacement mechanism are operated in reverse order to achieve quick disassembly and prepare for the next round of testing.

[0032] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A new energy vehicle battery testing device, comprising a testing platform (1), a movable frame (2), a spatial clamping mechanism, a support replacement mechanism, and a snap-fit ​​auxiliary mechanism, characterized in that: The spatial clamping mechanism includes a lifting cylinder (3), a clamping assembly (4), a push-pull cylinder (5), a push-pull frame (6), and a support base (7). The push-pull cylinder (5) is mounted on the movable frame (2), the push-pull frame (6) is mounted on one end of the push-pull cylinder (5), the lifting cylinder (3) is mounted on the push-pull frame (6), the clamping assembly (4) is mounted on one end of the lifting cylinder (3), and the support base (7) is mounted on the bottom end of the movable frame (2). The support replacement mechanism includes a snap-fit ​​tube (8), a snap-fit ​​rod (9), and an embedded groove (1). 0), outer rotating plate (11), embedded rotating ring (12), push-pull rod (13) and embedded plate (14), snap-fit ​​rod (9) is installed at the bottom end of support base (7), embedded groove (10) is set on the side wall of snap-fit ​​rod (9), embedded rotating ring (12) is limited to rotating and installed in the side wall of snap-fit ​​tube (8), outer rotating plate (11) is installed at the outer end of embedded rotating ring (12), embedded plate (14) rotates in the side wall of snap-fit ​​tube (8), and the two ends of push-pull rod (13) are rotatably connected to embedded plate (14) and embedded rotating ring (12).

2. The new energy vehicle battery testing device according to claim 1, characterized in that: The snap-fit ​​auxiliary mechanism includes a limiting ring (15), a rotating plate (16), a fixed ring (17), a positioning spring rod (18), and a positioning hole (19). The limiting ring (15) is installed on the outer wall of the snap-fit ​​tube (8) for limiting rotation. The outer rotating plate (11) is connected to the limiting ring (15). The fixed ring (17) is fixedly installed on the outer wall of the snap-fit ​​tube (8). Multiple sets of positioning spring rods (18) are arranged in a ring on the outer wall of the fixed ring (17). The rotating plate (16) is installed at the bottom end of the limiting ring (15). Different positioning spring rods (18) extend into the positioning hole (19) on the rotating plate (16) step by step.

3. The new energy vehicle battery testing device according to claim 1, characterized in that: The top end of the testing platform (1) is equipped with a lead screw adjustment assembly (20), and the moving frame (2) is installed on the lead screw adjustment assembly (20).

4. The new energy vehicle battery testing device according to claim 1, characterized in that: The bottom end of the movable frame (2) is symmetrically equipped with an electric push assembly (21), and a detection assembly (22) is installed on the electric push assembly (21), and the detection assembly (22) is electrically connected to the battery on the clamping assembly (4).

5. The new energy vehicle battery testing device according to claim 1, characterized in that: The support base (7) has a placement slot (23), and the battery on the clamping component (4) in the space clamping mechanism is embedded in the placement slot (23).

6. The new energy vehicle battery testing device according to claim 1, characterized in that: A connecting plate (24) is installed at the bottom of the side wall of the card tube (8), and the connecting plate (24) is fixedly installed at the bottom of the movable frame (2).

7. A new energy vehicle battery testing device according to claim 1, characterized in that: The insert ring (12) is provided with a guide groove (25), and a limiting block (26) is installed in the side wall of the clamping pipe (8), and the limiting block (26) is limited to sliding within the guide groove (25).

8. A new energy vehicle battery testing device according to claim 1, characterized in that: The snap-fit ​​rod (9) can pass through the support base (7) and the movable frame (2) and extend into the snap-fit ​​tube (8) to engage in a detachable snap-fit.