A new energy vehicle power storage battery multi-performance detection device

Abstract

The application discloses a new energy automobile power storage battery multi-performance detection device, and belongs to the technical field of battery detection, which comprises a detection table, a cylinder is fixedly installed on one side of the detection table, an electromagnetic valve is fixedly installed on one side of the cylinder, a piston rod is movably connected to the other side of the cylinder, a detection box is fixedly installed on the upper surface of the detection table, a connecting frame is fixedly connected to one end of the piston rod, and a moving plate is fixedly connected to one end of the connecting frame. The new energy automobile power storage battery multi-performance detection device focuses on the core technical problem that the safety evaluation of the existing retired power battery only focuses on a single risk dimension, the test efficiency is low, and the actual gradient utilization scene adaptability is poor. The device integrates a multi-dimensional test module and a scenario simulation unit, realizes the organic integration of multi-dimensional detection, fundamentally makes up for the limitations of the traditional single detection mode, and improves the practicality and advancement of the technical scheme.

Description

Technical Field

[0001] This invention relates to the field of battery testing technology, and in particular to a multi-performance testing device for power batteries of new energy vehicles. Background Technology

[0002] With the rapid development of the new energy vehicle industry, the stock and retirement scale of power batteries have increased significantly. Although retired power batteries cannot meet the power demand of the whole vehicle, their remaining capacity and performance still have the value of secondary use. They can be widely used in scenarios such as energy storage power stations, low-speed electric vehicles, and backup power supplies, which is of great significance for promoting resource recycling and reducing the cost of the new energy industry.

[0003] Existing safety testing devices for retired power batteries only focus on a single risk dimension, have low testing efficiency, and are poorly adapted to actual tiered utilization scenarios. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a multi-performance testing device for power batteries of new energy vehicles. This multi-performance testing device for power batteries of new energy vehicles can alleviate the problems of existing safety assessment of retired power batteries focusing only on a single risk dimension, low testing efficiency, and poor adaptability to actual tiered utilization scenarios.

[0005] To solve the above problems, the following technical solutions are provided: Design a multi-performance testing device for power batteries of new energy vehicles, including a testing platform. A cylinder is fixedly installed on one side of the testing platform, and a solenoid valve is fixedly installed on one side of the cylinder. A piston rod is movably connected to the other side of the cylinder. A testing box is fixedly installed on the upper surface of the testing platform. A connecting frame is fixedly connected to one end of the piston rod, and a movable plate is fixedly connected to one end of the connecting frame. The movable plate communicates with the interior of the testing box. A guide rail is fixedly installed at the bottom of the testing box. The movable plate is movably connected to the inner side of the guide rail. A ramp is provided on one side of the movable plate. A groove is formed on the surface of the ramp. A roller is slidably connected to the inner side of the groove. A wheel seat is sleeved on the outer surface of the roller. A lifting platform is fixedly connected above the wheel seat. A connecting rod is fixedly connected to one side of the lifting platform. A vertical displacement through hole is formed on the outer surface of the testing box. The connecting rod is movably connected to the interior of the vertical displacement through hole. A movable column is fixedly connected to one end of the connecting rod. The outer surface of the detection box has teeth, one side of which is engaged with a gear. A shell is fixedly installed on the outer surface of the detection box, and the shell is located outside the vertical displacement through hole. A fixing plate is fixedly connected to the inner wall of the shell. A round rod is sleeved in the middle of the gear, one end of which is fixedly connected to one side of the fixing plate, and the other end of which is fixedly connected to the inner wall of the shell. A gear is engaged on the other side of the gear, and a worm is sleeved in the middle of the gear. One end of the worm is rotatably connected to the inner wall of the shell. A worm wheel is engaged on one side of the worm, and a round rod is sleeved in the middle of the worm wheel. The round rod is fixedly connected to the inner wall of the shell. A push block is movably connected to the inner side of the detection box. A pressure sensor is fixedly installed on the inner side of the push block. A buffer pad is fixedly installed on one side of the pressure sensor. A pressure rod is fixedly connected to one side of the push block and connects to one side of the shell. A toothed groove is formed on one side of the pressure rod, and the toothed groove meshes with the worm wheel.

[0006] The above technical solution uses a cylinder to drive a piston rod, which in turn moves a movable plate along a guide rail. The lifting platform is adjusted by the cooperation of a ramp and rollers on one side of the movable plate, adapting to the placement needs of retired power batteries of different specifications. Simultaneously, the displacement of the lifting platform is transmitted to gear one via a connecting rod and movable column, and then converted into the horizontal displacement of the push block through gear two, a worm gear, and a worm wheel. A pressure sensor inside the push block accurately detects the mechanical response of the battery when compressed, thus completing the test of the pressure resistance performance in the mechanical integrity of the retired power battery. This provides mechanical performance data support for assessing whether the battery meets the safety standards for cascade utilization. A solenoid valve enables precise control of the cylinder, ensuring the stability and repeatability of the testing process. A buffer pad prevents excessive pressure from directly damaging the battery, improving testing safety. The outer shell, fixed plate, round rod one, and round rod two provide a stable mounting and support foundation for the transmission components. Vertical displacement through holes ensure smooth movement of the connecting rod. Fixing rings are provided on the left and right sides of the gears to prevent displacement during gear meshing. Through holes are provided on the exterior of the outer shell to facilitate the displacement of the movable column and pressure rod.

[0007] Furthermore, a battery is placed on the upper surface of the lifting platform, and a charging port is provided on one side of the battery. A charger positioning frame is fixedly installed on one side of the charging port. The charger positioning frame is located on the upper surface of the lifting platform. A charger is movably connected to the inside of the charger positioning frame. A charging cable is fixedly connected to one end of the charger. An electrical performance testing device is fixedly connected to one end of the charging cable. The electrical performance testing device is fixedly installed on the outer surface of the testing box.

[0008] The above technical solution enables precise docking of the charger and battery charging ports through the charger positioning frame, ensuring the stability of the charging process. The electrical performance testing device is connected to the charger through the charging cable and can collect key electrical parameters such as voltage, current, capacity, and internal resistance in real time during the battery charging process. It can complete the testing and evaluation of the battery's charging and discharging performance, energy storage capacity, and other electrical performance, providing core electrical performance data for screening batteries that meet the requirements for cascade utilization.

[0009] Furthermore, a push rod is fixedly connected to one side of the connecting frame. The push rod communicates with the inside of the detection box and is located below the lifting platform. A U-shaped block is fixedly connected to one end of the push rod. A bracket is hinged to the inner wall of the U-shaped block. A sliding rod is sleeved on one end of the bracket. An arc-shaped bracket is sleeved on the outer surface of the sliding rod. The arc-shaped bracket is located on one side of the bracket and is simultaneously sleeved on the outer surface of the sliding rod. A fixing block is fixedly installed on one side of the lifting platform. An arc-shaped groove is opened on one side of the fixing block. The sliding rod is slidably connected inside the arc-shaped groove.

[0010] The above technical solution works by having the cylinder drive the piston rod to move the connecting frame. On the one hand, the connecting frame drives the moving plate to slide along the guide rail to drive the lifting platform to rise and fall. On the other hand, the sliding rod is driven to slide synchronously in the arc groove of the fixed block through components such as push rod, U-shaped block, and bracket. The sliding of the sliding rod in the arc groove lays the foundation for the subsequent adjustment of the charging linkage lifting platform by the arc bracket to insert and remove the battery. The arc bracket provides a rotatable buffer to avoid rigid damage to the charger caused by forced squeezing.

[0011] Furthermore, a limiting frame is fixedly installed above the fixed block. The limiting frame is located on the outer surface of the lifting platform. A limiting rod is fixedly installed on one side of the limiting frame. A spring is sleeved on the outer surface of the limiting rod. One end of the spring is fixedly connected to the inner wall of the limiting frame, and the other end of the spring is fixedly connected to a moving block. The moving block is fixedly installed on the lower surface of the charger. A second limiting groove is opened in the middle of the limiting frame. A limiting block is movably connected to the inner side of the second limiting groove. The limiting block is fixedly installed on the lower surface of the charger. The limiting block is hinged to the arc-shaped bracket. The charger is slidably connected to the outer surface of the limiting frame.

[0012] The above technical solution, through the cooperation of the limiting frame, limiting rod, spring and moving block, enables the charger to have elastic buffering adjustment capability for the rotation of the arc support during automatic plugging and unplugging. The extension and contraction of the spring can drive the charger to slide along the second limiting groove, realizing flexible docking between the charger and the battery charging port, avoiding damage to the charging port or charger caused by rigid docking; at the same time, the cooperation between the limiting block and the second limiting groove ensures the stability of the charger sliding and prevents deviation, ultimately realizing the lifting platform to lift and move the charger for plugging and unplugging.

[0013] Furthermore, a temperature controller is fixedly installed at the bottom of the lifting platform, and a heat pipe is connected to one side of the temperature controller. The heat pipe is located inside the lifting platform, and a heat-conducting plate is fixedly installed above the heat pipe. The heat-conducting plate is installed on the upper surface of the lifting platform and located below the battery.

[0014] The above technical solution can precisely adjust the temperature of the heat transfer medium inside the heat pipe through a temperature controller, and transfer the temperature to the battery placed on the lifting platform through a heat conduction plate to simulate different temperature environments such as high temperature and low temperature. During the test, the electrical performance of the battery can be analyzed by combining the parameters collected by the electrical performance testing device, and the thermal stability of the battery can be evaluated. At the same time, by setting different temperature gradients, the battery's tolerance to extreme temperature environments can be tested, providing thermal performance data support for determining whether the battery is suitable for secondary use.

[0015] Furthermore, a connecting plate is fixedly connected around the lifting platform, a positioning buckle is snapped into one side of the connecting plate, and a lifting rod is fixedly connected to one side of the positioning buckle.

[0016] The above technical solution ensures that the lifting rod can move synchronously during the lifting process of the lifting platform by the snap-fit ​​between the connecting plate and the positioning buckle, thus realizing the coordinated movement of the lifting rod and the lifting platform. The positioning buckle is designed to be detachable, which facilitates the maintenance and repair of the lifting platform or the lifting rod in the later stage. At the same time, it ensures the stability of the connection between the two and avoids separation or displacement during the lifting process, thus providing a structural basis for the synchronous lifting of the box cover and the sealing of the test box.

[0017] Furthermore, a limiting post is fixedly installed on the inner side of the detection box, and a limiting groove is formed on the outer surface of the limiting post. The lifting rod is movably connected to the inner side of the limiting post, and the positioning buckle is located inside the limiting groove.

[0018] The above technical solution provides precise guidance for the movement of the lifting rod through the cooperation of the limiting post and the limiting groove, ensuring that the lifting rod always rises and falls along a fixed trajectory and avoiding tilting or deviation. At the same time, the positioning buckle slides in the limiting groove, further restricting the movement trajectory of the lifting platform, ensuring the stability of the lifting platform during the lifting process, and indirectly improving the accuracy of battery placement and the docking of testing components such as chargers and push blocks, providing structural support for the smooth implementation of various testing projects.

[0019] Furthermore, a box cover is fixedly connected to one end of the lifting rod, an observation window is provided on the outer surface of the box cover, a fixing frame is fixedly installed on the lower surface of the box cover, and a vision sensor is hinged to the inner wall of the fixing frame. The vision sensor is located inside the detection box and above the battery.

[0020] The above technical solution uses a fixed connection between the lifting rod and the lid, allowing the lid to open and close synchronously when the lifting platform moves up and down. During testing, the closed lid creates a sealed testing environment, reducing interference from external factors such as dust and temperature fluctuations, and improving the accuracy of environmental tolerance testing. The observation window is equipped with special glass, allowing staff to directly observe the real-time situation inside the testing chamber. The vision sensor hinged to the fixed frame can acquire real-time images of the batteries inside the testing chamber. Image analysis is used to determine whether the batteries have external defects such as bulging, leakage, or shell damage, completing the inspection of the external integrity of the battery's mechanical integrity. At the same time, the hinged design of the vision sensor can adjust the inspection angle, enabling comprehensive external inspection of the batteries.

[0021] Furthermore, two sets of positioning angles are fixedly installed on the upper surface of the lifting platform, an operation screen is fixedly installed on one side of the testing platform, and a buffer support is fixedly installed at the bottom of the testing platform.

[0022] The above technical solution can initially prevent battery problems through two sets of positioning angles, and realize the positioning of the charging port and the charger positioning frame. The operation screen, as the core of human-machine interaction, can realize the parameter setting and start control of each detection module, and can display the detection data and images collected by the vision sensor in real time, which can facilitate the staff to monitor the detection process and record the detection results in real time. The buffer support can effectively absorb the vibration generated during the detection process, such as the cylinder action and battery placement, to avoid the vibration affecting the detection accuracy, such as the pressure detection of the pressure sensor and the parameter detection of the electrical performance detection device, and improve the overall stability of the device operation.

[0023] Furthermore, a limiting post is fixedly connected to the bottom of the lifting platform, the limiting post is connected to the outside of the detection platform, and a circular seat is fixedly connected to the bottom of the detection box, the limiting post being movably connected inside the circular seat.

[0024] The above technical solution provides additional guidance and limiting function for the lifting platform through the cooperation of the limiting column and the ring seat. It works in conjunction with the guide structure of the guide rail and the limiting column to further restrict the degree of freedom of movement of the lifting platform and prevent the lifting platform from shaking or tilting when lifting or carrying batteries. At the same time, the limiting column extends to the outside of the testing platform, which makes it easy for the staff to observe the lifting stroke of the platform and also facilitates the subsequent stroke calibration, thus improving the overall reliability of the testing.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This multi-performance testing device for power batteries of new energy vehicles addresses the core technical problems of existing safety assessments of retired power batteries, which only focus on a single risk dimension, have low testing efficiency, and are poorly adapted to actual tiered utilization scenarios. This device integrates multi-dimensional testing modules and scenario-based simulation units to achieve the organic fusion of multi-dimensional testing, fundamentally making up for the limitations of the traditional single testing mode and improving the practicality and advancement of the technical solution.

[0026] 2. This multi-performance testing device for new energy vehicle power batteries enables multi-dimensional simultaneous testing and improves testing efficiency: This device integrates four core testing modules: electrical performance, thermal stability, mechanical integrity, and environmental tolerance. It can carry out multi-dimensional testing simultaneously without the need for multiple battery transfers or replacement of testing equipment, which greatly shortens the total time of a single evaluation and significantly improves the overall efficiency of safety assessment of retired power batteries, meeting the industry needs of large-scale retired battery screening.

[0027] 3. This multi-performance testing device for new energy vehicle power batteries can effectively improve the resource utilization rate of retired power batteries and reduce resource waste and environmental pollution by accurately screening retired power batteries that meet the standards for cascade utilization. At the same time, it provides a safe and reliable battery screening solution for the cascade utilization industry, and helps promote the standardized and large-scale development of the retired power battery cascade utilization industry, which has significant economic benefits and environmental value. Attached Figure Description

[0028] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure inside the detection box of the present invention. Figure 1 ; Figure 3 This is a partial structural diagram of point A in the present invention; Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the detection box of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the three-dimensional structure inside the detection box of the present invention. Figure 2 ; Figure 6 This is a partial structural diagram at point B of the present invention; Figure 7 This is a partial structural diagram at point C of the present invention; Figure 8 This is a schematic diagram of the three-dimensional cross-sectional structure of the detection box of the present invention; Figure 9 This is a partial structural diagram at point D of the present invention; Figure 10 This is a partial structural diagram at point E of the present invention.

[0029] In the diagram: 1. Testing platform; 2. Buffer support; 3. Testing box; 4. Box cover; 5. Observation window; 6. Battery; 7. Charging port; 8. Charger positioning frame; 9. Operation panel; 10. Cylinder; 11. Solenoid valve; 12. Piston rod; 13. Guide rail; 14. Lifting platform; 15. Connecting plate; 16. Positioning buckle; 17. Limiting post; 18. Wheel seat; 19. Roller; 20. Slide slope; 21. Slide groove; 22. Moving plate; 23. Circular seat; 24. Electrical performance testing device; 25. Fixing frame; 26. Vision sensor; 27. Heat-conducting plate; 28. Heat-conducting pipe; 29. ​​Temperature controller; 30. Limiting post; 31. Buffer pad; 32. Connecting frame; 33. Push rod; 4. Push block; 35. Pressure sensor; 36. Up and down displacement through hole; 37. Housing; 38. Fixing plate; 39. Pressure rod; 40. Connecting rod; 41. Lifting rod; 42. Limiting groove one; 43. Movable column; 44. Gear one; 45. Round rod one; 46. Worm gear; 47. Gear two; 48. U-shaped block; 49. Bracket; 50. Sliding rod; 51. Arc bracket; 52. Arc groove; 53. Fixing block; 54. Limiting frame; 55. Charger; 56. Charging cable; 57. Limiting block; 58. Limiting rod; 59. Spring; 60. Limiting groove two; 61. Moving block; 62. Tooth; 63. Round rod two; 64. Tooth groove; 65. Worm gear; 66. Positioning angle. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] like Figure 1 - Figure 10As shown in the figure, this embodiment provides a multi-performance testing device for power batteries of new energy vehicles, including a testing platform 1. A cylinder 10 is fixedly installed on one side of the testing platform 1, and a solenoid valve 11 is fixedly installed on one side of the cylinder 10. A piston rod 12 is movably connected to the other side of the cylinder 10. A testing box 3 is fixedly installed on the upper surface of the testing platform 1. A connecting frame 32 is fixedly connected to one end of the piston rod 12, and a moving plate 22 is fixedly connected to one end of the connecting frame 32. The moving plate 22 communicates with the interior of the testing box 3. A guide rail 13 is fixedly installed at the bottom of the testing box 3. The moving plate 22 is movably connected to the inner side of the guide rail 13. A slope 20 is provided on one side of the moving plate 22. A groove 21 is opened on the surface of the slope 20, and a sliding connection is slidably made on the inner side of the groove 21. A roller 19 has a wheel seat 18 fitted onto its outer surface. A lifting platform 14 is fixedly connected above the wheel seat 18. A connecting rod 40 is fixedly connected to one side of the lifting platform 14. A vertical displacement through hole 36 is opened on the outer surface of the detection box 3. The connecting rod 40 is movably connected inside the vertical displacement through hole 36. A movable column 43 is fixedly connected to one end of the connecting rod 40. A tooth 62 is opened on the outer surface of the movable column 43. A gear 44 meshes with one side of the tooth 62. A housing 37 is fixedly installed on the outer surface of the detection box 3. The housing 37 is located outside the vertical displacement through hole 36. A fixing plate 38 is fixedly connected to the inner wall of the housing 37. A round rod 45 is fitted into the middle of the gear 44. One end of the round rod 45 is fixedly connected to the fixing plate 38. On one side, the other end of the round rod 45 is fixedly connected to the inner wall of the outer shell 37. A gear 47 meshes with the other side of the gear 44. A worm 46 is sleeved in the middle of the gear 47. One end of the worm 46 is rotatably connected to the inner wall of the outer shell 37. A worm wheel 65 meshes with one side of the worm 46. A round rod 63 is sleeved in the middle of the worm wheel 65 and is fixedly connected to the inner wall of the outer shell 37. A push block 34 is movably connected to the inner side of the detection box 3. A pressure sensor 35 is fixedly installed on the inner side of the push block 34. A buffer pad 31 is fixedly installed on one side of the pressure sensor 35. A pressure rod 39 is fixedly connected to one side of the push block 34. The pressure rod 39 connects to one side of the outer shell 37. A toothed groove 64 is formed on one side of the pressure rod 39. Engaging with the worm gear 65, the cylinder 10 drives the piston rod 12 to move the moving plate 22 along the guide rail 13. The lifting platform 14 is adjusted by the cooperation of the sliding slope 20 on one side of the moving plate 22 and the roller 19, which can adapt to the placement requirements of retired power batteries of different specifications. At the same time, the displacement of the lifting platform 14 is transmitted to the gear 44 through the connecting rod 40 and the movable column 43. It is then converted into the horizontal displacement of the push block 34 through the transmission of the gear 47, the worm 46 and the worm gear 65. The pressure sensor 35 inside the push block 34 can accurately detect the mechanical response of the battery when it is squeezed, thereby completing the test of the compressive strength of the mechanical integrity of the retired power battery and providing mechanical performance data support for assessing whether the battery meets the safety standards for cascade utilization.The solenoid valve 11 enables precise control of the cylinder 10, ensuring the stability and repeatability of the detection process. The buffer pad 31 prevents excessive pressure from directly damaging the battery, thus improving detection safety. The housing 37, the fixing plate 38, the first round rod 45, and the second round rod 63 provide a stable mounting and support foundation for the transmission components, while the vertical displacement through hole 36 ensures the smooth movement of the connecting rod 40.

[0032] In this embodiment, a battery 6 is placed on the upper surface of the lifting platform 14. A charging port 7 is provided on one side of the battery 6. A charger positioning frame 8 is fixedly installed on one side of the charging port 7. The charger positioning frame 8 is located on the upper surface of the lifting platform 14. A charger 55 is movably connected to the inside of the charger positioning frame 8. A charging cable 56 is fixedly connected to one end of the charger 55. An electrical performance testing device 24 is fixedly connected to one end of the charging cable 56. The electrical performance testing device 24 is fixedly installed on the outer surface of the testing box 3. The charger positioning frame 8 can achieve precise docking between the charger 55 and the charging port 7 of the battery 6, ensuring the stability of the charging process. The electrical performance testing device 24 is connected to the charger 55 through the charging cable 56. It can collect key electrical parameters such as voltage, current, capacity, and internal resistance of the battery 6 in real time during the charging process, and complete the testing and evaluation of the electrical performance such as the charging and discharging performance and energy storage capacity of the battery 6, providing core electrical performance data for screening batteries that meet the requirements for cascade utilization.

[0033] In this embodiment, a push rod 33 is fixedly connected to one side of the connecting frame 32. The push rod 33 extends to the inner side of the detection box 3 and is located below the lifting platform 14. A U-shaped block 48 is fixedly connected to one end of the push rod 33. A bracket 49 is hinged to the inner wall of the U-shaped block 48. A sliding rod 50 is sleeved on one end of the bracket 49. An arc-shaped bracket 51 is sleeved on the outer surface of the sliding rod 50. The arc-shaped bracket 51 is located on one side of the bracket 49 and is simultaneously sleeved on the outer surface of the sliding rod 50. A fixing block 53 is fixedly installed on one side of the lifting platform 14. An arc-shaped groove 52 is opened on one side of the fixing block 53. The sliding rod 50 is slidably connected to the... Inside the arc-shaped groove 52, when the cylinder 10 drives the piston rod 12 to move the connecting frame 32, the connecting frame 32 drives the moving plate 22 to slide along the guide rail 13 to drive the lifting platform 14 to rise and fall. On the other hand, through components such as the push rod 33, U-shaped block 48, and bracket 49, it drives the sliding rod 50 to slide synchronously in the arc-shaped groove 52 of the fixed block 53. The sliding of the sliding rod 50 inside the arc-shaped groove 52 lays the foundation for the subsequent adjustment of the charging 55 by the arc-shaped bracket 51 to link the lifting platform to the insertion and removal of the battery 6. The arc-shaped bracket 51 provides a rotatable buffer to avoid rigid damage to the charging 55 by forced squeezing.

[0034] In this embodiment, a limiting frame 54 is fixedly installed above the fixed block 53. The limiting frame 54 is located on the outer surface of the lifting platform 14. A limiting rod 58 is fixedly installed on one side of the limiting frame 54. A spring 59 is sleeved on the outer surface of the limiting rod 58. One end of the spring 59 is fixedly connected to the inner wall of the limiting frame 54, and the other end of the spring 59 is fixedly connected to a moving block 61. The moving block 61 is fixedly installed on the lower surface of the charger 55. A limiting groove 60 is opened in the middle of the limiting frame 54. A limiting block 57 is movably connected to the inner side of the limiting groove 60. The limiting block 57 is fixedly installed on the lower surface of the charger 55. The limiting block 57 is connected to the arc-shaped bracket 51. The charger 55 is slidably connected to the outer surface of the limiting frame 54 via an interlocking mechanism. The cooperation of the limiting frame 54, the limiting rod 58, the spring 59, and the moving block 61 enables the charger 55 to have elastic buffering adjustment capability for the rotation of the arc-shaped support 51 during automatic insertion and removal. The extension and retraction of the spring 59 can drive the charger 55 to slide along the second limiting groove 60, achieving flexible docking between the charger 55 and the charging port 7 of the battery 6, avoiding damage to the charging port 7 or the charger 55 caused by rigid docking. At the same time, the cooperation between the limiting block 57 and the second limiting groove 60 ensures the stability of the charger 55's sliding and prevents deviation, ultimately realizing the lifting of the lifting platform to drive the insertion and removal of the charger.

[0035] In this embodiment, a temperature controller 29 is fixedly installed at the bottom of the lifting platform 14. A heat pipe 28 is connected to one side of the temperature controller 29. The heat pipe 28 is located inside the lifting platform 14. A heat-conducting plate 27 is fixedly installed above the heat pipe 28. The heat-conducting plate 27 is installed on the upper surface of the lifting platform 14 and located below the battery 6. The temperature controller 29 can accurately adjust the temperature of the heat transfer medium inside the heat pipe 28 and transfer the temperature to the battery 6 placed on the lifting platform 14 through the heat-conducting plate 27 to simulate different temperature environments such as high temperature and low temperature. During the test, the parameters collected by the electrical performance testing device 24 can be combined to analyze the changes in the electrical performance of the battery 6 at different temperatures and evaluate the thermal stability of the battery 6. At the same time, by setting different temperature gradients, the tolerance of the battery 6 to extreme temperature environments can be detected, providing thermal performance data support for determining whether the battery 6 is suitable for secondary use.

[0036] In this embodiment, a connecting plate 15 is fixedly connected around the lifting platform 14. A positioning buckle 16 is snapped onto one side of the connecting plate 15, and a lifting rod 41 is fixedly connected to one side of the positioning buckle 16. The snapping cooperation between the connecting plate 15 and the positioning buckle 16 ensures that the lifting rod 41 can move synchronously during the lifting process of the lifting platform 14, realizing the coordinated movement of the lifting rod 41 and the lifting platform 14. The positioning buckle 16 is a detachable design, which facilitates the maintenance and repair of the lifting platform 14 or the lifting rod 41 in the later stage, and at the same time ensures the stability of the connection between the two, avoiding separation or displacement during the lifting process, and providing a structural basis for the synchronous lifting of the box cover 4 and the sealing of the test box 3.

[0037] In this embodiment, a limiting post 17 is fixedly installed on the inner side of the testing box 3. A limiting groove 42 is formed on the outer surface of the limiting post 17. The lifting rod 41 is movably connected to the inner side of the limiting post 17. The positioning buckle 16 is located inside the limiting groove 42. The cooperation between the limiting post 17 and the limiting groove 42 provides precise guidance for the movement of the lifting rod 41, ensuring that the lifting rod 41 always rises and falls along a fixed trajectory, avoiding tilting or deviation. At the same time, the positioning buckle 16 slides in the limiting groove 42, further restricting the movement trajectory of the lifting platform 14, ensuring the stability of the lifting process of the lifting platform 14, and indirectly improving the accuracy of battery 6 placement and the docking of testing components such as charger 55 and push block 34, providing structural guarantee for the smooth implementation of various testing items.

[0038] In this embodiment, a box cover 4 is fixedly connected to one end of the lifting rod 41. An observation window 5 is provided on the outer surface of the box cover 4. A fixing frame 25 is fixedly installed on the lower surface of the box cover 4. A vision sensor 26 is hinged to the inner wall of the fixing frame 25. The vision sensor 26 is located inside the test box 3 and above the battery 6. The fixed connection between the lifting rod 41 and the box cover 4 allows the lifting platform 14 to lift and lower simultaneously, which in turn drives the box cover 4 to open and close. When the box cover 4 is closed during testing, the test box 3 forms a closed testing environment, reducing the interference of external environment such as dust and temperature fluctuations on the test results and improving the accuracy of environmental tolerance testing. The observation window 5 is provided with special glass, which allows the staff to directly observe the real-time situation inside the test box 3. The vision sensor 26 hinged on the fixing frame 25 can collect the appearance image of the battery 6 inside the test box 3 in real time. Through image analysis, it can be determined whether the battery 6 has appearance defects such as bulging, leakage, and shell damage, thus completing the inspection of the appearance integrity in the mechanical integrity of the battery 6. At the same time, the hinged design of the vision sensor 26 can adjust the detection angle to achieve all-round appearance inspection of the battery 6.

[0039] In this embodiment, two sets of positioning angles 66 are fixedly installed on the upper surface of the lifting platform 14, an operation screen 9 is fixedly installed on one side of the detection platform 1, and a buffer support 2 is fixedly installed at the bottom of the detection platform 1. The two sets of positioning angles 66 can initially prevent problems with the battery 6 and realize the positioning of the charging port 7 and the charger positioning frame 8. The operation screen 9, as the core of human-machine interaction, can realize the parameter setting and start control of each detection module, and can also display the detection data and the images collected by the vision sensor 26 in real time, which is convenient for the staff to monitor the detection process and record the detection results in real time. The buffer support 2 can effectively absorb the vibration generated during the detection process, such as the movement of the cylinder 10 and the placement of the battery 6, to avoid the vibration affecting the detection accuracy, such as the pressure detection of the pressure sensor 35 and the parameter detection of the electrical performance detection device 24, and improve the overall stability of the device operation.

[0040] In this embodiment, a limiting post 30 is fixedly connected to the bottom of the lifting platform 14. The limiting post 30 extends to the outside of the testing platform 1. A circular seat 23 is fixedly connected to the bottom of the testing box 3. The limiting post 30 is movably connected inside the circular seat 23. The cooperation between the limiting post 30 and the circular seat 23 provides additional guidance and limiting function for the lifting of the lifting platform 14. It works in conjunction with the guiding structure of the guide rail 13 and the limiting post 17 to further restrict the degree of freedom of movement of the lifting platform 14 and prevent the lifting platform 14 from shaking or tilting when lifting or carrying the battery 6. At the same time, the limiting post 30 extends to the outside of the testing platform 1, which makes it easy for the staff to observe the lifting stroke of the lifting platform 14 directly. It also provides convenience for subsequent stroke calibration and improves the overall reliability of the test.

[0041] This embodiment presents a multi-performance testing device for power batteries in new energy vehicles. The retired power battery 6 to be tested is placed between positioning angles 66 on the lifting platform 14 to complete the initial positioning of the battery 6, ensuring precise alignment between the battery 6 charging port 7 and the charger positioning frame 8. The device sets relevant testing parameters for electrical performance, thermal stability, and mechanical integrity, such as charge / discharge thresholds, temperature gradients, and pressure testing ranges, through the operation screen 9, laying the foundation for multi-directional synchronous testing. Operating the operation screen 9 activates the device, and the solenoid valve 11 controls the cylinder 10 to move. The cylinder 10 drives the piston rod 12, which in turn moves the connecting frame 32. The connecting frame 32 synchronously links the connecting plates 15 and positioning buckles 16 around the lifting platform 14, causing the lifting rod 41 to move along the limiting post 1. The limit groove 42 of 7 rises and falls, thereby driving the box cover 4 to close, so that the test box 3 forms a closed environment, ensuring the accuracy of environmental tolerance testing, and isolating external interference from other testing directions. On the one hand, the connecting frame 32 drives the moving plate 22 to slide along the guide rail 13, and at the same time, through the push rod 33, U-shaped block 48, bracket 49 and other components, the sliding rod 50 slides in the arc groove 52 of the fixed block 53. With the buffering effect of the limit frame 54 and spring 59, the charger 55 slides along the limit groove 60 and flexibly docks with the charging port 7 of the battery 6, completing the connection preparation for electrical performance testing. On the other hand, the sliding of the moving plate 22 provides power for the transmission mechanism action of the subsequent mechanical integrity test, and four-way synchronous testing: ① Electrical performance testing: The electrical performance testing device 24 collects key parameters such as voltage, current, capacity, and internal resistance of the battery 6 in real time during the charging and discharging process via the charging cable 56 and charger 55 to evaluate the battery's energy storage capacity and charging and discharging performance; ② Thermal stability testing: The temperature controller 29 transmits the set temperature to the battery 6 through the heat pipe 28 and heat plate 27 to simulate extreme temperature conditions such as high and low temperatures, and analyzes the battery's thermal stability in conjunction with changes in electrical performance parameters; ③ Mechanical integrity testing: The moving plate 22 drives the lifting platform 14 to rise and fall through the cooperation of the ramp 20 and roller 19. Its displacement is transmitted through the connecting rod 40, moving column 43, gear 44, worm 46, and worm wheel 65, which drives the push block 34 to horizontally squeeze the battery 6. The pressure sensor 35 detects the pressure resistance response, and at the same time, the vision sensor 26 collects battery images to determine whether there are appearance defects such as bulging, leakage, and shell damage, and comprehensively evaluates the mechanical integrity; ④ Environmental tolerance testing: The environmental tolerance test of battery 6 is simulated under different environments based on different temperatures and different compression. The operation screen 9 displays the test data and visual images in four directions in real time. The device automatically integrates the test results and conducts a comprehensive evaluation of whether battery 6 meets the safety standards for cascade utilization. The buffer support 2 absorbs vibration throughout the process to ensure the accuracy of the test data. The staff can record the evaluation results simultaneously, providing a reliable safety inspection basis for the resource utilization of retired batteries.

[0042] In the description of this invention, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention 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 of the invention. In the description of this invention, unless otherwise specified and limited, it should be noted that the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two elements; they can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0043] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-performance testing device for power batteries of new energy vehicles, comprising a testing platform (1), characterized in that: A cylinder (10) is fixedly installed on one side of the testing platform (1), and a solenoid valve (11) is fixedly installed on one side of the cylinder (10). A piston rod (12) is movably connected to the other side of the cylinder (10). A testing box (3) is fixedly installed on the upper surface of the testing platform (1). A connecting frame (32) is fixedly connected to one end of the piston rod (12), and a moving plate (22) is fixedly connected to one end of the connecting frame (32). The moving plate (22) communicates with the interior of the testing box (3). A guide rail (13) is fixedly installed at the bottom of the testing box (3). The moving plate (22) is movably connected to the inside of the guide rail (13). A slope is provided on one side of the moving plate (22). (20), a groove (21) is provided on the surface of the landslide (20), a roller (19) is slidably connected to the inner side of the groove (21), a wheel seat (18) is sleeved on the outer surface of the roller (19), a lifting platform (14) is fixedly connected above the wheel seat (18), a connecting rod (40) is fixedly connected to one side of the lifting platform (14), an upper and lower displacement through hole (36) is provided on the outer surface of the detection box (3), the connecting rod (40) is movably connected inside the upper and lower displacement through hole (36), a movable column (43) is fixedly connected to one end of the connecting rod (40), teeth (62) are provided on the outer surface of the movable column (43), and one side of the teeth (62) is... Gear 1 (44) meshes with the outer surface of the detection box (3), and a housing (37) is fixedly installed on the outer surface of the detection box (3). The housing (37) is located outside the vertical displacement through hole (36). A fixing plate (38) is fixedly connected to the inner wall of the housing (37). A round rod 1 (45) is sleeved in the middle of gear 1 (44). One end of the round rod 1 (45) is fixedly connected to one side of the fixing plate (38), and the other end of the round rod 1 (45) is fixedly connected to the inner wall of the housing (37). Gear 2 (47) meshes with the other side of gear 1 (44). A worm gear (46) is sleeved in the middle of gear 2 (47). One end of the worm gear (46) is rotatably connected to the inner wall of the housing (37). The worm gear (46) is meshed with a worm wheel (65) on one side. A round rod (63) is sleeved in the middle of the worm wheel (65). The round rod (63) is fixedly connected to the inner wall of the outer shell (37). A push block (34) is movably connected to the inner side of the detection box (3). A pressure sensor (35) is fixedly installed on the inner side of the push block (34). A buffer pad (31) is fixedly installed on one side of the pressure sensor (35). A pressure rod (39) is fixedly connected to one side of the push block (34). The pressure rod (39) is connected to one side of the outer shell (37). A toothed groove (64) is opened on one side of the pressure rod (39). The toothed groove (64) meshes with the worm wheel (65).

2. The multi-performance testing device for power batteries of new energy vehicles according to claim 1, characterized in that: A battery (6) is placed on the upper surface of the lifting platform (14). A charging port (7) is provided on one side of the battery (6). A charger positioning frame (8) is fixedly installed on one side of the charging port (7). The charger positioning frame (8) is located on the upper surface of the lifting platform (14). A charger (55) is movably connected to the inside of the charger positioning frame (8). A charging cable (56) is fixedly connected to one end of the charger (55). An electrical performance testing device (24) is fixedly connected to one end of the charging cable (56). The electrical performance testing device (24) is fixedly installed on the outer surface of the testing box (3).

3. The multi-performance testing device for power batteries of new energy vehicles according to claim 2, characterized in that: A push rod (33) is fixedly connected to one side of the connecting frame (32). The push rod (33) is connected to the inner side of the detection box (3) and located below the lifting platform (14). A U-shaped block (48) is fixedly connected to one end of the push rod (33). A bracket (49) is hinged to the inner wall of the U-shaped block (48). A sliding rod (50) is sleeved on one end of the bracket (49). An arc-shaped bracket (51) is sleeved on the outer surface of the sliding rod (50). The arc-shaped bracket (51) is located on one side of the bracket (49) and is sleeved on the outer surface of the sliding rod (50). A fixing block (53) is fixedly installed on one side of the lifting platform (14). An arc-shaped groove (52) is opened on one side of the fixing block (53). The sliding rod (50) is slidably connected inside the arc-shaped groove (52).

4. The multi-performance testing device for power batteries of new energy vehicles according to claim 3, characterized in that: A limiting frame (54) is fixedly installed above the fixed block (53). The limiting frame (54) is located on the outer surface of the lifting platform (14). A limiting rod (58) is fixedly installed on one side of the limiting frame (54). A spring (59) is sleeved on the outer surface of the limiting rod (58). One end of the spring (59) is fixedly connected to the inner wall of the limiting frame (54). The other end of the spring (59) is fixedly connected to a moving block (61). The moving block (61) is fixedly installed on the lower surface of the charger (55). A second limiting groove (60) is opened in the middle of the limiting frame (54). A limiting block (57) is movably connected to the inner side of the second limiting groove (60). The limiting block (57) is fixedly installed on the lower surface of the charger (55). The limiting block (57) is hinged to the arc-shaped bracket (51). The charger (55) is slidably connected to the outer surface of the limiting frame (54).

5. The multi-performance testing device for power batteries of new energy vehicles according to claim 4, characterized in that: A temperature controller (29) is fixedly installed at the bottom of the lifting platform (14). A heat pipe (28) is connected to one side of the temperature controller (29). The heat pipe (28) is located inside the lifting platform (14). A heat plate (27) is fixedly installed above the heat pipe (28). The heat plate (27) is installed on the upper surface of the lifting platform (14) and is located below the battery (6).

6. The multi-performance testing device for power batteries of new energy vehicles according to claim 5, characterized in that: The lifting platform (14) is fixedly connected to a connecting plate (15) around its perimeter. A positioning buckle (16) is snapped onto one side of the connecting plate (15), and a lifting rod (41) is fixedly connected to one side of the positioning buckle (16).

7. The multi-performance testing device for power batteries of new energy vehicles according to claim 6, characterized in that: The inner side of the detection box (3) is fixedly installed with a limiting post (17), and a limiting groove (42) is opened on the outer surface of the limiting post (17). The lifting rod (41) is movably connected to the inner side of the limiting post (17), and the positioning buckle (16) is located inside the limiting groove (42).

8. The multi-performance testing device for power batteries of new energy vehicles according to claim 7, characterized in that: One end of the lifting rod (41) is fixedly connected to a box cover (4). An observation window (5) is opened on the outer surface of the box cover (4). A fixing frame (25) is fixedly installed on the lower surface of the box cover (4). A visual sensor (26) is hinged to the inner wall of the fixing frame (25). The visual sensor (26) is located inside the detection box (3) and above the battery (6).

9. A multi-performance testing device for power batteries of new energy vehicles according to claim 8, characterized in that: The upper surface of the lifting platform (14) is fixedly equipped with two sets of positioning angles (66), the side of the testing platform (1) is fixedly equipped with an operation screen (9), and the bottom of the testing platform (1) is fixedly equipped with a buffer support (2).

10. A multi-performance testing device for power batteries of new energy vehicles according to claim 9, characterized in that: The bottom of the lifting platform (14) is fixedly connected to a limiting post (30), which is connected to the outside of the detection platform (1). The bottom of the detection box (3) is fixedly connected to a ring seat (23), and the limiting post (30) is movably connected inside the ring seat (23).

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