A battery cell testing device

Abstract

The present invention relates to the technical field of battery testing equipment, and in particular to a battery cell testing equipment, which includes a workbench, a battery cell size measuring part and a battery cell insulation testing part, wherein the battery cell size measuring part includes a measuring mechanism, a frame, a feeding component, a pressing component and a clamping component, wherein the pressing component is located above the feeding component, and the clamping component is located in the circumference of the feeding component; the measuring mechanism includes a thickness measuring component arranged on the pressing component and a height measuring component and a width measuring component respectively arranged on the frame; the height measuring component and the width measuring component are located on both sides of the feeding component; and the battery cell insulation testing part is used to test the withstand voltage insulation performance of the battery cell. The battery cell positioning of the present invention is accurate and fast, and the size measurement and insulation test of the battery cell are efficient, accurate and convenient, and it is convenient to accurately measure the battery cell in multiple directions and angles. The present invention has strong practicality and high utilization rate.

Description

Technical Field

[0001] The present invention relates to the technical field of battery testing equipment, and in particular to a battery core testing equipment. Background Art

[0002] Battery cells are an important component of new energy batteries. The produced battery cells need to be grouped according to the battery cell parameters, namely the size and electrical parameters. However, in actual production, it is impossible to produce battery cells with exactly the same specifications, and there will be small deviations. Traditional dimension measuring equipment uses cylinders to control pressure, and the pressure control accuracy is poor. Traditional dimension measuring equipment uses contact measurement. When replacing products of different specifications, the position of the sensor needs to be reinstalled and adjusted, which is inconvenient to use. In addition, when testing the withstand voltage insulation parameters of the battery cell, the existing battery cell insulation test equipment cannot quickly and accurately adjust the pressure applied to the battery cell, and the battery cell insulation test equipment has a complex structure, low test efficiency, high labor costs, and low yield, which cannot meet the needs of modern production. Therefore, the defects are very obvious, and a solution is urgently needed. Summary of the invention

[0003] In order to solve the above technical problems, an object of the present invention is to provide a battery cell detection device.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] A battery cell detection device comprises a workbench and a battery cell size measuring part and a battery cell insulation testing part respectively arranged on the workbench, the battery cell size measuring part comprises a measuring mechanism, a frame arranged on the workbench, a feeding component movably arranged on the workbench, and a pressing component and a clamping component respectively movably arranged on the frame, the pressing component is located above the feeding component, and the clamping component is located in the circumferential direction of the feeding component; the measuring mechanism comprises a thickness measuring component arranged on the pressing component, and a height measuring component and a width measuring component respectively arranged on the frame; the height measuring component and the width measuring component are located on both sides of the feeding component; the battery cell insulation testing part is used to test the withstand voltage insulation performance of the battery cell.

[0006] Furthermore, the battery cell insulation test part includes an insulation withstand voltage test component, a frame 2 arranged on a workbench, a loading component 2 movably arranged on the workbench, and a down-pressing component 2 and a clamping component 2 movably arranged on the frame 2, the down-pressing component 2 is located above the loading component 2, and the clamping component 2 is located in the circumferential direction of the loading component 2; the insulation withstand voltage test component includes a conductive component 1 arranged on the down-pressing end of the down-pressing component 2, a conductive component 2 arranged on the clamping end of the clamping component 2, a conductive component 3 arranged on the loading position of the loading component 2, a probe component arranged on the clamping component 2, and a testing mechanism electrically connected to the probe assembly, the conductive component 1, the conductive component 2 and the conductive component 3, respectively, and the testing mechanism is used to test the withstand voltage insulation performance of the battery cell.

[0007] Furthermore, the downward pressing assembly includes a downward pressing driving device arranged on a frame, an upper pressing plate connected to the output end of the downward pressing driving device, a connecting guide column slidably connected to the upper pressing plate, a limiting ring arranged at one end of the connecting guide column and capable of abutting against the top surface of the upper pressing plate, a lower pressing plate arranged at the other end of the connecting guide column, and a pressure sensor arranged between the upper pressing plate and the lower pressing plate, wherein the pressure sensor is connected to the upper pressing plate; the thickness measuring assembly is arranged on the lower pressing plate.

[0008] Furthermore, the clamping assembly 1 includes a side clamping device 1 movably arranged on the workbench and a side clamping device 2 movably arranged on the frame 1; the loading assembly 1 includes a loading and unloading driving device 1, a loading platform 1 arranged at the output end of the loading and unloading driving device 1, and a limit plate 1 and a limit plate 2 respectively arranged on the loading platform 1; the limit plate 1 and the limit plate 2 are located on two adjacent sides of the loading platform 1, and the side clamping device 1 and the side clamping device 2 are located on the other adjacent sides of the loading platform 1.

[0009] Furthermore, the side clamping device 1 includes a clamping drive mechanism 1 arranged on the workbench, a connecting plate 1 connected to the output end of the clamping drive mechanism 1, and a rubber roller 1 arranged on the connecting plate 1; the rubber roller 1 is arranged on the side of the connecting plate 1 close to the feeding component 1; the side clamping device 2 includes a clamping drive mechanism 2 arranged on the frame 1, a connecting plate 2 connected to the output end of the clamping drive mechanism 2, and a rubber roller 2 arranged on the connecting plate 2; the rubber roller 2 is arranged on the side of the connecting plate 2 close to the feeding component 1.

[0010] Furthermore, the clamping component 2 includes a side clamping device 3 movably arranged on the workbench and a side clamping device 4 movably arranged on the frame 2; the probe component is arranged at the clamping end of the side clamping device 3; the conductive component 2 is arranged at the clamping end of the side clamping device 4; the side clamping device 3 and the side clamping device 4 are located on two adjacent sides of the feeding component 2.

[0011] Furthermore, the loading component 2 includes a loading and unloading driving device 2, a loading platform 2 arranged at the output end of the loading and unloading driving device 2, and a limit plate 3 and a limit plate 4 respectively arranged on the loading platform 2; the side clamping device 3 and the side clamping device 4 are located on the adjacent two sides of the loading platform 2, and the limit plate 3 and the limit plate 4 are located on the other adjacent two sides of the loading platform 2; the conductive component 3 is respectively arranged on the limit plate 3, the limit plate 4 and the loading platform 2.

[0012] Furthermore, the side clamping device three includes a clamping drive mechanism three arranged on the workbench, a connecting plate three connected to the output end of the clamping drive mechanism three, and a rubber roller three arranged on the connecting plate three; the rubber roller three and the probe assembly are respectively arranged on one side of the connecting plate three close to the feeding assembly two; the side clamping device four includes a clamping drive mechanism four arranged on the frame two and a clamping plate connected to the output end of the clamping drive mechanism four; the clamping plate is arranged close to the feeding assembly two; the conductive assembly two is arranged on the clamping plate.

[0013] Furthermore, the battery cell size measuring unit also includes a displacement component arranged on the frame one, and the output end of the displacement component is connected to the height measuring component; the displacement component is used to drive the height measuring component to move in a direction parallel to the feeding component one.

[0014] Furthermore, the displacement assembly includes a displacement drive device arranged on frame one and a moving seat with one end connected to the output end of the displacement drive device, and the other end of the moving seat is connected to the height measuring assembly; the moving seat is slidably connected to frame one.

[0015] Beneficial effects of the present invention: The present invention uses a clamping component 1 and a pressing component 1 to respectively press the circumference and top surface of the battery cell, thereby performing secondary positioning of the battery cell, and then uses a measuring mechanism to measure the battery cell, thereby improving the accuracy and efficiency of the battery cell size measurement. The measuring mechanism measures the battery cell size in a non-contact manner, which improves the measurement accuracy of the battery cell size, and there is no need to adjust the position of the measuring component installed on the frame 1 or the pressing component 1, so that battery cells of different specifications can be measured, simplifying the adjustment operation of the battery cell size measurement part. In addition, the height measurement component, the width measurement component and the thickness measurement component are arranged in different positions of the loading component 1, which not only facilitates the rapid disassembly and assembly of the measuring mechanism, but also facilitates the accurate measurement of the battery cell in multiple directions and angles, and the battery cell size measurement efficiency is high. The battery cell size measurement unit and the battery cell insulation test unit can respectively perform size measurement and insulation test on different battery cells, and the work of the two does not interfere with each other. Manually or mechanically, the battery cells that have passed the size measurement are placed into the battery cell insulation test unit, and the battery cell insulation test unit performs a withstand voltage insulation performance test on the battery cells. The present invention has strong practicability and high utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 .

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the battery cell size measuring part of the present invention.

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the pressing component 1 and the frame 1 of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the battery cell insulation test part of the present invention.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the side clamping device 1 of the present invention.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the side clamping device 2 of the present invention.

[0022] Figure 7 It is a partial three-dimensional structural diagram of the battery core insulation test part of the present invention.

[0023] Figure 8 The local three-dimensional structure of the battery cell size measuring part of the present invention Figure 1 .

[0024] Fig. 9 The local three-dimensional structure of the battery cell size measuring part of the present invention Figure 2 .

[0025] Description of reference numerals:

[0026] 1. Workbench; 2. Displacement assembly; 3. Measuring mechanism; 4. Loading assembly 1; 5. Pressing assembly 1; 6. Clamping assembly 1; 7. Pressing assembly 2; 8. Loading assembly 2; 9. Clamping assembly 2; 11. Rack 1; 12. Rack 2; 13. Testing mechanism; 14. Probe assembly; 15. Top plate; 16. Battery cell; 17. Support side plate; 18. Displacement carrier; 21. Displacement drive device; 22. Moving seat; 31. Thickness measurement assembly; 32. Height measurement assembly; 33. Width measurement assembly; 41. Loading and unloading drive device 1; 42. Loading platform 1; 43. Limiting plate 1; 44. Limiting plate 2; 51. Pressing drive device 1; 52. Upper pressing plate 1; 53. Connecting guide column 1; 54. Limiting ring 1; 55. Lower pressing plate 1; 56. Pressure sensor 1; 57. Sliding connector one; 61, side clamping device one; 62, side clamping device two; 81, loading and unloading drive device two; 82, loading platform two; 83, limit plate three; 84, limit plate four; 91, side clamping device three; 92, side clamping device four; 71, lower pressure drive device two; 72, upper pressure plate two; 73, connecting guide column two; 74, limit ring two; 75, lower pressure plate two; 76, pressure sensor two; 77, sliding connector two; 611, clamping drive mechanism one; 612, connecting plate one; 613, rubber roller one; 621, clamping drive mechanism two; 622, connecting plate two; 623, rubber roller two; 624, avoidance groove; 911, clamping drive mechanism three; 912, connecting plate three; 913, rubber roller three; 921, clamping drive mechanism four; 922, clamping plate. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0028] like Figures 1 to 9 As shown, the battery cell detection equipment provided by the present invention includes a workbench 1 and a battery cell size measuring part and a battery cell insulation testing part respectively arranged on the workbench 1, the battery cell size measuring part includes a measuring mechanism 3, a frame 11 arranged on the workbench 1, a loading component 4 movably arranged on the workbench 1, and a pressing component 5 and a clamping component 6 movably arranged on the frame 11, the pressing component 5 is located above the loading component 4, and the clamping component 6 is located in the circumference of the loading component 4; the measuring mechanism 3 includes a thickness measuring component 31 arranged on the pressing component 5 and a height measuring component 32 and a width measuring component 33 respectively arranged on the frame 11; the height measuring component 32 and the width measuring component 33 are located on two adjacent sides of the loading component 4; the battery cell insulation testing part is used to test the withstand voltage insulation performance of the battery cell 16.

[0029] Specifically, the battery cell size measuring part and the battery cell insulation testing part are arranged side by side on the workbench 1; the positioning and measuring station is located below the pressing assembly 5; the loading assembly 4 is used to transport the battery cell 16 to the positioning and measuring station; the clamping assembly 6 is used to clamp the battery cell 16 on the positioning and measuring station on the loading assembly 4; the pressing assembly 5 is used to press the battery cell 16 on the positioning and measuring station on the loading assembly 4, so as to realize the positioning of the battery cell 16; the height measuring assembly 32, the thickness measuring assembly 31 and the width measuring assembly 33 are respectively used to measure the height, thickness and width of the battery cell 16 on the positioning and measuring station; the height measuring assembly 32, the thickness measuring assembly 31 and the width measuring assembly 33 can all use laser displacement sensors.

[0030] In the actual measurement process, the battery cell 16 to be measured is placed on the loading assembly 4 manually or by a manipulator, and the battery cell 16 is positioned for the first time by the loading assembly 4, and the loading assembly 4 slides relative to the workbench 1 to drive the battery cell 16 to the positioning and measuring station; the clamping end of the clamping assembly 6 moves relative to the frame 11, and the clamping assembly 6 cooperates with the loading assembly 4 to clamp the battery cell 16, and then the pressing end of the pressing assembly 5 moves downward until it presses the battery cell 16 on the loading assembly 4, thereby achieving the positioning of the battery cell 16; finally, the thickness, width and height of the battery cell 16 are measured respectively by the thickness measuring assembly 31, the width measuring assembly 33 and the height measuring assembly 32. The present invention presses the circumference and top surface of the battery cell 16 respectively by the clamping assembly 6 and the pressing assembly 5, thereby performing a secondary positioning of the battery cell 16, and then measures the battery cell 16 by the measuring mechanism 3, thereby improving the accuracy and efficiency of the size measurement of the battery cell 16. The measurement mechanism 3 measures the size of the battery cell 16 in a non-contact manner, which improves the measurement accuracy of the size of the battery cell 16, and does not need to adjust the position of the measuring component installed on the frame 11 or the pressing component 5, so that the battery cells 16 of different specifications can be measured, simplifying the adjustment operation of the battery cell size measurement part. In addition, the height measurement component 32, the width measurement component 33 and the thickness measurement component 31 are arranged at different positions of the feeding component 4, which is convenient for the rapid disassembly and assembly of the measuring mechanism 3, and is also conducive to the multi-directional and multi-angle accurate measurement of the battery cell 16, and the battery cell 16 size measurement efficiency is high. The battery cell size measurement unit and the battery cell insulation test unit can respectively perform size measurement and insulation test on different battery cells 16, and the work of the two does not interfere with each other. A person or a robot puts the battery cell 16 that has passed the size measurement into the battery cell insulation test unit, and the battery cell insulation test unit performs a withstand voltage insulation performance test on the battery cell 16. The present invention has strong practicability and high utilization rate. An operator or a robot can perform size measurement and insulation test on the same or different battery cells 16, thereby improving the efficiency of detecting the battery cells 16.

[0031] Furthermore, the battery cell insulation test part includes an insulation withstand voltage test component, a frame 12 arranged on the workbench 1, a loading component 8 movably arranged on the workbench 1, and a down-pressing component 7 and a clamping component 9 movably arranged on the frame 12, respectively, wherein the down-pressing component 7 is located above the loading component 8, and the clamping component 9 is located in the circumferential direction of the loading component 8; the insulation withstand voltage test component includes a conductive component 1 arranged on the down-pressing end of the down-pressing component 7, a conductive component 2 arranged on the clamping end of the clamping component 9, a conductive component 3 arranged on the loading position of the loading component 8, a probe component 14 arranged on the clamping component 9, and a testing mechanism 13 electrically connected to the probe component 14, the conductive component 1, the conductive component 2 and the conductive component 3, respectively, and the testing mechanism 13 is used to test the withstand voltage insulation performance of the battery cell 16.

[0032] Specifically, below the pressing down component 2 7 is the positioning and insulation test station; the loading component 2 8 is used to transport the battery cell 16 to the positioning and insulation test station; the clamping component 2 9 is used to clamp the battery cell 16 at the positioning and insulation test station on the loading component 2 8, and at the same time, the clamping component 2 9 drives the probe component 14 to connect with the positive and negative poles of the battery cell 16 respectively; the pressing down component 2 7 is used to press the battery cell 16 on the positioning and insulation test station onto the loading component 2 8, so as to realize the positioning of the battery cell 16; the testing mechanism 13 passes current to the positive or negative pole of the battery cell 16 through the probe component 14, and simultaneously monitors the leakage current data of the conductive component 1, the conductive component 2, and the conductive component 3.

[0033] During the actual test process, a person or a robot manually or mechanically tilts the battery cell 16 to be tested and places it on the loading position of the loading component 2 8. The bottom end surface of the battery cell 16 fits tightly with the conductive component 3, and the pole of the battery cell 16 is placed opposite the probe component 14. The battery cell 16 is positioned for the first time by the loading component 2 8. The loading component 2 8 slides relative to the workbench 1 to transport the battery cell 16 to the positioning and insulation test station. The clamping end of the clamping component 2 9 moves relative to the frame 2 12, and the clamping component 2 9 cooperates with the loading component 2 8 to clamp the battery cell 16. The clamping component 2 9 drives the conductive component 2 to fit tightly with the circumferential side wall of the battery cell 16. At the same time, the clamping component 2 9 drives the probe component 14 to connect with the positive and negative poles of the battery cell 16 respectively. Then, the lower pressing end of the lower pressing component 2 7 moves downward until it presses the battery cell 16 onto the loading component 2 8, and the lower pressing component 2 7 drives the conductive component 1 to connect with the battery cell 1 6 is tightly fitted, and while completing the secondary positioning of the battery cell 16, the circumference, top surface and bottom surface of the positioned battery cell 16 are tightly connected to the conductive component 2, the conductive component 1 and the conductive component 3 respectively, so that the conductive component 2, the conductive component 1 and the conductive component 3 can simultaneously detect the leakage current data of the circumference, top surface and bottom surface of the battery cell 16, and can simultaneously perform insulation tests on multiple side walls of the battery cell 16, thereby improving the accuracy and efficiency of the insulation test of the present invention; finally, a certain pressure is continuously applied to the battery cell 16 by pressing down the component 2 7, and the testing mechanism 13 passes current to the positive or negative electrode of the battery cell 16 through the probe component 14, and synchronously monitors the leakage current data of the conductive component 1, the conductive component 2 and the conductive component 3 to detect whether the insulating film in contact with the conductive component 1, the conductive component 2 and the conductive component 3 is broken down, thereby completing the insulation test of the battery cell 16. The present invention adjusts the pressure of the pressing component 2 7 on the battery cell 16 to test whether the battery cell 16 can maintain sufficient insulation performance when it is under different pressures. The pressure of the battery cell 16 is easy to adjust. The present invention has reasonable structural design, simple structure, safety and reliability, easy use, easy maintenance, good positioning effect, improved test accuracy, good applicability, high efficiency of insulation test, reduced labor costs, and improved yield rate.

[0034] Furthermore, the pressing assembly 5 includes a pressing drive device 51 arranged on the frame 11, an upper pressing plate 52 connected to the output end of the pressing drive device 51, a connecting guide column 53 slidably connected to the upper pressing plate 52, a limiting ring 54 arranged at one end of the connecting guide column 53 and capable of abutting against the top surface of the upper pressing plate 52, a lower pressing plate 55 arranged at the other end of the connecting guide column 53, and a pressure sensor 56 arranged between the upper pressing plate 52 and the lower pressing plate 55, and the pressure sensor 56 is connected to the upper pressing plate 52; the thickness measuring assembly 31 is arranged on the lower pressing plate 55.

[0035] Specifically, the number of the connecting guide pillars 53 is set to four; the four connecting guide pillars 53 are symmetrically arranged along the central axis of the upper pressing plate 52; the downward pressing driving device 51 can adopt a linear driving module (such as: linear motor, electric cylinder, cylinder, etc.), and the output end of the downward pressing driving device 51 is connected to the upper pressing plate 52; the working end of the pressure sensor 56 is located on the side close to the lower pressing plate 55. In the actual installation process, the downward pressing driving device 51 is installed on the frame 11, and the upper pressing plate 52 is connected to the pressure sensor 56 and the connecting guide pillars 53 respectively, and then the upper pressing plate 52 is driven and connected to the downward pressing driving device 51, and finally the connecting guide pillars 53 are connected to the lower pressing plate 55, so as to complete the installation of the downward pressing assembly 5. Under the action of the gravity of the lower pressing plate 55 and the connecting guide column 53, the limiting ring 54 contacts the top surface of the upper pressing plate 52, and the lower pressing plate 55 is hung on the upper pressing plate 52 through the limiting ring 54 and the connecting guide column 53. The upper pressure plate 52, together with the pressure sensor 56, the connecting guide column 53 and the lower pressure plate 55, are driven downward by the output end of the downward pressure driving device 51. When the lower pressure plate 55 contacts the battery cell 16, the output end of the downward pressure driving device 51 continues to drive the upper pressure plate 52 and the pressure sensor 56 to continue to move downward. Since the lower pressure plate 55 contacts the battery cell 16, the connecting guide column 53 will slide upward relative to the upper pressure plate 52, thereby reducing the distance between the lower pressure plate 55 and the upper pressure plate 52. The working end of the pressure sensor 56 contacts the lower pressure plate 55 and is used to detect the pressure from the lower pressure plate 55. When the pressure value detected by the pressure sensor 56 reaches a preset range, the downward pressure driving device 51 stops working, thereby keeping the pressure between the lower pressure plate 55 and the battery cell 16 within the preset range, and the pressure control accuracy of the downward pressure component 5 is high. When the pressure of the pressing assembly 5 needs to be adjusted, the pressure of the pressing plate 55 on the battery cell 16 can be changed or adjusted by changing the relevant working parameters of the pressing driving device 51, and the pressure between the pressing plate 55 and the battery cell 16 can be easily regulated.

[0036] Furthermore, the pressing assembly 5 also includes a sliding connection member 57 connected to the pressing plate 55, and the sliding connection member 57 is slidably connected to the frame 11.

[0037] Preferably, four high-precision guide rails can be used for the sliding connection between the first sliding connector 57 and the first frame 11. When the first downward pressing drive device 51 drives the first lower pressing plate 55 and the first sliding connector 57 to move towards or away from the first feeding assembly 4, the first sliding connector 57 slides along the high-precision guide rails towards or away from the first feeding assembly 4, so as to ensure that the first lower pressing plate 55 slides smoothly and parallelly, improve the accuracy and stability when the first lower pressing plate 55 moves, ensure that the first lower pressing plate 55 is always pressed parallelly on the battery cell 16, and facilitate the thickness measuring assembly 31 to stably and accurately detect the thickness of the battery cell 16.

[0038] Specifically, the first frame 11 includes a top plate 15 and two mutually parallel support side plates 17. The top plate 15 is connected to the workbench 1 via the two support side plates 17; an accommodation space is enclosed by the inner side walls of the workbench 1, the top plate 15 and the two support side plates 17. The first upper pressing plate 52, the first connecting guide post 53, the first limiting ring 54, the first lower pressing plate 55 and the first pressure sensor 56 are all located in the accommodation space. The first sliding connector 57 is slidably connected to the two support side plates 17 respectively; the first downward pressing drive device 51 is arranged on the top plate 15, and the output end of the first downward pressing drive device 51 protrudes into the accommodation space and is connected to the first upper pressing plate 52.

[0039] Specifically, the first frame 11 is in a U-shaped form, and the number of the first sliding connectors 57 is set to four; the four first sliding connectors 57 are symmetrically arranged along the central axis of the first lower pressing plate 55. The positioning and measuring station is correspondingly arranged with the accommodation space, and even the positioning and measuring station is located in the accommodation space. The first feeding assembly 4 transports the battery cell 16 to the positioning and measuring station. The accommodation space provides an operation space for the clamping and pressing of the battery cell 16; the connection between the first sliding connector 57 and the support side plate 17 is convenient and the structure is compact; the disassembly and assembly of the first frame 11 and the first downward pressing assembly 5 are convenient.

[0040] Specifically, the second downward pressing assembly 7 includes a second downward pressing drive device 71 arranged on the second frame 12, a second upper pressing plate 72 connected to the output end of the second downward pressing drive device 71, a second connecting guide post 73 slidably connected to the second upper pressing plate 72, a second limiting ring 74 arranged at one end of the second connecting guide post 73 and capable of abutting against the top end surface of the second upper pressing plate 72, a second lower pressing plate 75 arranged at the other end of the second connecting guide post 73, and a second pressure sensor 76 arranged between the second upper pressing plate 72 and the second lower pressing plate 75. The second pressure sensor 76 is connected to the second upper pressing plate 72; the first conductive assembly is coated on the second lower pressing plate 75; the second downward pressing assembly 7 further includes a second sliding connector 77 connected to the second lower pressing plate 75, and the second sliding connector 77 is slidably connected to the second frame 12. The first conductive assembly can adopt conductive cloth.

[0041] When the pressing assembly 2 7 presses the battery cell 16, the conductive assembly 1 is in close contact with the top surface of the battery cell 16, which is convenient for testing the insulation performance of the top surface of the battery cell 16. In addition, the structure of the pressing assembly 2 7 is basically the same as that of the pressing assembly 1 5, the structure of the frame 2 12 is basically the same as that of the frame 1 11, and the connection method between the pressing assembly 2 7 and the frame 2 12 is the same as the connection structure between the pressing assembly 1 5 and the frame 1 11, and the technical effects achieved are the same. The pressure adjustment method of the pressing assembly 2 7 is the same as that of the pressing assembly 1 5, and will not be repeated here.

[0042] Furthermore, the clamping assembly 6 includes a side clamping device 61 movably arranged on the workbench 1 and a side clamping device 62 movably arranged on the frame 11; the loading assembly 4 includes a loading and unloading driving device 41, a loading platform 42 arranged at the output end of the loading and unloading driving device 41, and a limit plate 43 and a limit plate 44 respectively arranged on the loading platform 42; the limit plate 43 and the limit plate 44 are located on the adjacent two sides of the loading platform 42, and the side clamping device 61 and the side clamping device 62 are located on the other adjacent two sides of the loading platform 42.

[0043] Specifically, the side clamping device 61 and the loading assembly 4 are located between two supporting side plates 17, and the side clamping device 62 is movably arranged on a supporting side plate 17; the loading platform 42 is rectangular; the limiting plate 43, the limiting plate 44, the side clamping device 61 and the side clamping device 62 are sequentially arranged on the circumference of the four sides of the loading platform 42; the loading and unloading driving device 41 can adopt a cylinder or a linear motor; the loading platform 42 is slidably arranged on the workbench 1. During actual use, the battery cell 16 is tilted and placed on the loading platform 42, and the adjacent two side edges of the battery cell 16 are respectively in contact with the limit plate 43 and the limit plate 44, so as to achieve the first positioning of the battery cell 16; then, when the loading component 4 drives the battery cell 16 to move to the positioning and measuring station, the side clamping device 61 and the side clamping device 62 are respectively in contact with the other two side edges of the battery cell 16 to achieve the second positioning (precise positioning) of the battery cell 16, and finally, the pressing component 5 presses the battery cell 16 on the loading platform 42; the side clamping device 61 and the side clamping device 62 are respectively arranged on the workbench 1 and the supporting side plate 17, so as to facilitate the rapid disassembly and assembly of the side clamping device 61 and the side clamping device 62 and the rapid positioning of the battery cell 16.

[0044] Furthermore, the side clamping device 61 includes a clamping drive mechanism 611 arranged on the workbench 1, a connecting plate 612 connected to the output end of the clamping drive mechanism 611, and a rubber roller 613 arranged on the connecting plate 612; the rubber roller 613 is arranged on one side of the connecting plate 612 close to the loading component 4; specifically, the connecting plate 612 is slidably connected to the workbench 1.

[0045] In actual use, the clamping drive mechanism 1 611 drives the connecting plate 1 612 and the rubber roller 1 613 to move toward the direction close to the battery cell 16 until the rubber roller 1 613 contacts the side of the battery cell 16, so as to clamp the battery cell 16 between the limiting plate 1 43, the limiting plate 2 44, and the rubber roller 1 613. When the rubber roller 1 613 contacts the battery cell 16, it will not produce a rigid collision with the battery cell 16, so as to prevent the insulation film on the surface of the battery cell 16 from being damaged or worn when the rubber roller 1 613 clamps the battery cell 16.

[0046] Furthermore, the side clamping device 62 includes a clamping drive mechanism 621 arranged on the frame 11, a connecting plate 622 connected to the output end of the clamping drive mechanism 621, and a rubber roller 623 arranged on the connecting plate 622; the rubber roller 623 is arranged on one side of the connecting plate 622 close to the feeding component 4, and the connecting plate 622 is slidably connected to the frame 11.

[0047] Specifically, the clamping drive mechanism 1 611 and the clamping drive mechanism 2 621 can both use a cylinder or a linear motor; the body of the clamping drive mechanism 2 621 is mounted on a supporting side plate 17, and the connecting plate 2 622 and the rubber roller 2 623 can protrude into the accommodating space. In actual use, the clamping drive mechanism 2 621 drives the connecting plate 2 622 and the rubber roller 2 623 to move in the direction close to the battery cell 16 until the rubber roller 2 623 contacts the side of the battery cell 16, so as to clamp the battery cell 16 between the limiting plate 1 43, the limiting plate 2 44, the rubber roller 1 613 and the rubber roller 2 623. When the rubber roller 2 623 contacts the battery cell 16, it will not produce a rigid collision with the battery cell 16, so as to prevent the insulating film on the surface of the battery cell 16 from being damaged or worn when the rubber roller 2 623 clamps the battery cell 16.

[0048] Furthermore, a side of the connecting plate 2 622 close to the loading component 1 4 is provided with an avoidance groove 624 ; the working end of the width measuring component 33 is located in the avoidance groove 624 .

[0049] During actual use, the width measuring component 33 and the clamping drive mechanism 2 621 are arranged on the same side of the loading platform 1 42. After the width measuring component 33 and the clamping drive mechanism 2 621 are respectively connected to a supporting side plate 17, the working end of the width measuring component 33 can be accommodated in the avoidance groove 624. When the connecting plate 2 622 and the rubber roller 2 623 move back and forth to clamp or release the battery cell 16, the connecting plate 2 622 will not interfere with the working end of the width measuring component 33, thereby simplifying the structure of the side clamping device 2 62 and facilitating the width measuring component 33 to measure the width of the battery cell 16.

[0050] Furthermore, the clamping component 2 9 includes a side clamping device 3 91 movably arranged on the workbench 1 and a side clamping device 4 92 movably arranged on the frame 2 12; the probe component 14 is arranged at the clamping end of the side clamping device 3 91; the conductive component 2 is covered on the clamping end of the side clamping device 4 92; the side clamping device 3 91 and the side clamping device 4 92 are located on two adjacent sides of the loading component 2 8.

[0051] Specifically, the conductive component 2 can be made of conductive cloth. The output end of the side clamping device 3 91 and the output end of the side clamping device 4 92 cooperate with the feeding component 2 8 to clamp the battery cell 16. The output end of the side clamping device 3 91 drives the probe component 14 to move to connect with the positive and negative electrodes of the battery cell 16. The output end of the side clamping device 4 92 drives the conductive component 2 to fit closely with the battery cell 16. While clamping the battery cell 16, the insulation withstand voltage test component is electrically connected to the battery cell 16, thereby improving the test efficiency of the present invention.

[0052] Furthermore, the loading component 2 8 includes a loading and unloading driving device 2 81, a loading platform 2 82 arranged at the output end of the loading and unloading driving device 2 81, and a limit plate 3 83 and a limit plate 4 84 respectively arranged on the loading platform 2 82; the side clamping device 3 91 and the side clamping device 4 92 are located on the adjacent two sides of the loading platform 2 82, and the limit plate 3 83 and the limit plate 4 84 are located on the other adjacent two sides of the loading platform 2 82; the conductive component 3 is respectively coated on the limit plate 3 83, the limit plate 4 84 and the loading platform 2 82.

[0053] Specifically, the conductive component three can be made of conductive cloth; the structure of the loading component two 8 is basically the same as that of the loading component one 4, and the technical effects achieved are the same, which will not be repeated here.

[0054] Furthermore, the side clamping device 3 91 includes a clamping drive mechanism 3 911 arranged on the workbench 1, a connecting plate 3 912 connected to the output end of the clamping drive mechanism 3 911, and a rubber roller 3 913 arranged on the connecting plate 3 912; the rubber roller 3 913 and the probe assembly 14 are respectively arranged on one side of the connecting plate 3 912 close to the loading assembly 2 8; specifically, the connecting plate 3 912 is slidably connected to the workbench 1.

[0055] In actual use, the clamping drive mechanism 3 911 drives the connecting plate 3 912, the rubber roller 3 913 and the probe assembly 14 to move toward the battery cell 16 until the rubber roller 3 913 contacts the side of the battery cell 16 and the probe assembly 14 is connected to the positive and negative electrodes of the battery cell 16. The connection between the probe assembly 14 and the battery cell 16 is convenient and quick. The side clamping device 3 91 has a substantially identical structure to the side clamping device 1 61, and the technical effects achieved are the same, which will not be described in detail.

[0056] Furthermore, the side clamping device 92 comprises a clamping drive mechanism 921 disposed on the frame 12 and a clamping plate 922 connected to the output end of the clamping drive mechanism 921; the clamping plate 922 is disposed near the feeding assembly 8; and the conductive assembly 8 is covered on the clamping plate 922. Specifically, the clamping plate 922 is slidably connected to the frame 12.

[0057] Specifically, the clamping drive mechanism 4 921 can use a cylinder or a linear motor; the body of the clamping drive mechanism 4 921 is installed on the frame 2 12. In actual use, the clamping drive mechanism 4 921 drives the clamping plate 922 to move in the direction close to the battery cell 16 until the conductive component 2 is tightly fitted with the side of the battery cell 16, and then the pressing component 2 7 is pressed on the battery cell 16. The battery cell 16 is clamped between the limit plate 3 83, the limit plate 4 84, the rubber roller 3 913, the clamping plate 922 and the pressing component 2 7. When performing insulation testing, the five faces of the battery cell 16 are respectively connected to the test mechanism 13 through the conductive component 1, the conductive component 2 and the conductive component 3. A pole is set on the other side of the battery cell 16, and the pole is connected to the test mechanism 13 through the probe component 14. The structure of the side clamping device 4 92 is simple and compact, and the positioning and testing of the battery cell 16 are convenient.

[0058] Furthermore, the battery cell size measuring unit also includes a displacement component 2 arranged on the frame 11, and the output end of the displacement component 2 is connected to the height measuring component 32; the displacement component 2 is used to drive the height measuring component 32 to move in a direction parallel to the loading component 4.

[0059] Specifically, the height measuring component 32 and the side clamping device 61 are located on the same side of the loading platform 42; the battery cell 16 is provided with a pole; the shoulder height of the battery cell 16 is the height of the battery cell 16 after the pole is removed. The battery cell 16 to be measured is manually tilted and placed on the loading component 4, and the pole of the battery cell 16 is placed toward the height measuring component 32, and the height measuring component 32 is driven by the displacement component 2 to move back and forth relative to the loading component 4 to measure the battery cell 16 on the loading component 4. When the height measuring component 32 moves to the pole of the battery cell 16, the total height of the battery cell 16 can be measured; when the height measuring component 32 moves to other positions of the battery cell 16, the shoulder height of the battery cell 16 can be measured; the additional displacement component 2 is conducive to the convenient movement of the height measuring component 32, and it is convenient for the height measuring component 32 to measure the height of the battery cell 16 at multiple different positions, thereby improving the practicality of the present invention.

[0060] Furthermore, the displacement assembly 2 includes a displacement driving device 21 arranged on the frame 11 and a moving seat 22 whose one end is connected to the output end of the displacement driving device 21, and the other end of the moving seat 22 is connected to the height measuring assembly 32; the moving seat 22 is slidably connected to the frame 11.

[0061] Specifically, the displacement drive device 21 can adopt a belt drive assembly; the frame 11 also includes a displacement carrier 18 connected to two supporting side plates 17; the displacement carrier 18 is connected to the side of the supporting side plate 17 away from the loading assembly 4; the moving seat 22 is slidably connected to the displacement carrier 18. In actual use, after the moving seat 22 is connected to the height measuring assembly 32, the moving seat 22 is connected to the displacement carrier 18 and the displacement drive device 21 respectively. The moving seat 22 and the height measuring assembly 32 are driven to move by the displacement drive device 21, and the moving seat 22 slides relative to the displacement carrier 18 to achieve directional movement of the moving seat 22 and the height measuring assembly 32, thereby improving the stability and precision of the height measuring assembly 32 during the movement, and further improving the accuracy of the height measuring assembly 32 when measuring the height of the battery cell 16.

[0062] Specifically, the test mechanism 13 is mounted on the rack 1 11 and the rack 2 12; the test mechanism 13 may use an insulation withstand voltage tester. The test mechanism 13 fully utilizes the free space above the rack 1 11 and the rack 2 12, and the test mechanism 13 is easy to install.

[0063] All technical features in this embodiment can be freely combined according to actual needs.

[0064] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention may also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A battery cell testing device, characterized in that: The invention comprises a workbench (1) and a cell size measuring part and a cell insulation testing part respectively arranged on the workbench (1); the cell size measuring part comprises a measuring mechanism (3), a frame (11) arranged on the workbench (1), a loading assembly (4) movably arranged on the workbench (1), and a pressing assembly (5) and a clamping assembly (6) respectively movably arranged on the frame (11); the pressing assembly (5) is located above the loading assembly (4), and the clamping assembly (6) is located in the circumferential direction of the loading assembly (4); the measuring mechanism (3) comprises a thickness measuring assembly (31) arranged on the pressing assembly (5), and a height measuring assembly (32) and a width measuring assembly (33) respectively arranged on the frame (11). 33); the height measuring component (32) and the width measuring component (33) are located on both sides of the first feeding component (4); the cell insulation test section comprises an insulation withstand voltage test component, a frame (12) arranged on the workbench (1), a second feeding component (8) movably arranged on the workbench (1), and a second pressing component (7) and a second clamping component (9) movably arranged on the second frame (12), wherein the second pressing component (7) is located above the second feeding component (8), and the second clamping component (9) is located in the circumferential direction of the second feeding component (8); the insulation withstand voltage test component comprises a conductive component (1) arranged on the pressing end of the second pressing component (7), a conductive component (2) arranged on the clamping end of the second clamping component (9), and a conductive component (33) arranged on the second feeding component (8). The conductive component 3 on the material loading position of the clamping component 2 (8), the probe component (14) arranged on the clamping component 2 (9) and a testing mechanism (13) electrically connected to the probe component (14), the conductive component 1, the conductive component 2 and the conductive component 3 respectively, wherein the testing mechanism (13) is used to test the withstand voltage insulation performance of the battery cell (16); the pressing component 1 (5) comprises a pressing driving device 1 (51) arranged on the frame 1 (11), an upper pressing plate 1 (52) connected to the output end of the pressing driving device 1 (51), a connecting guide column 1 (53) slidably connected to the upper pressing plate 1 (52), a limiting ring 1 (54) arranged at one end of the connecting guide column 1 (53) and capable of abutting against the top end surface of the upper pressing plate 1 (52), and a ) at the other end of the upper pressing plate (52) and a pressure sensor (56) disposed between the upper pressing plate (52) and the lower pressing plate (55), wherein the pressure sensor (56) is connected to the upper pressing plate (52); the thickness measuring assembly (31) is disposed on the lower pressing plate (55); the clamping assembly (6) comprises a side clamping device (61) movably disposed on the workbench (1) and a side clamping device (62) movably disposed on the frame (11); the loading assembly (4) comprises a loading and unloading driving device (41), a loading platform (42) disposed at the output end of the loading and unloading driving device (41), and a limit plate (43) and a limit plate (44) respectively disposed on the loading platform (42);The limiting plate 1 (43) and the limiting plate 2 (44) are located on two adjacent sides of the material loading platform 1 (42), and the side clamping device 1 (61) and the side clamping device 2 (62) are located on the other two adjacent sides of the material loading platform 1 (42); the side clamping device 1 (61) comprises a clamping drive mechanism 1 (611) arranged on the workbench (1), a connecting plate 1 (612) connected to the output end of the clamping drive mechanism 1 (611), and a rubber roller 1 (612) arranged on the connecting plate 1 (612). 3); the rubber roller 1 (613) is arranged on one side of the connecting plate 1 (612) close to the feeding assembly 1 (4); the side clamping device 2 (62) comprises a clamping drive mechanism 2 (621) arranged on the frame 1 (11), a connecting plate 2 (622) connected to the output end of the clamping drive mechanism 2 (621), and a rubber roller 2 (623) arranged on the connecting plate 2 (622); the rubber roller 2 (623) is arranged on one side of the connecting plate 2 (622) close to the feeding assembly 1 (4). ; 2. A battery cell testing device according to claim 1, characterized in that: The clamping assembly 2 (9) comprises a side clamping device 3 (91) movably arranged on the workbench (1) and a side clamping device 4 (92) movably arranged on the frame 2 (12); the probe assembly (14) is arranged at the clamping end of the side clamping device 3 (91); the conductive assembly 2 is arranged at the clamping end of the side clamping device 4 (92); the side clamping device 3 (91) and the side clamping device 4 (92) are located on two adjacent sides of the loading assembly 2 (8).

3. A battery cell testing device according to claim 2, characterized in that: The loading component 2 (8) includes a loading and unloading driving device 2 (81), a loading platform 2 (82) arranged at the output end of the loading and unloading driving device 2 (81), and a limit plate 3 (83) and a limit plate 4 (84) respectively arranged on the loading platform 2 (82); the side clamping device 3 (91) and the side clamping device 4 (92) are located on the adjacent two sides of the loading platform 2 (82), and the limit plate 3 (83) and the limit plate 4 (84) are located on the other adjacent two sides of the loading platform 2 (82); the conductive component 3 is respectively arranged on the limit plate 3 (83), the limit plate 4 (84) and the loading platform 2 (82).

4. A battery cell detection device according to claim 2, characterized in that: The side clamping device three (91) comprises a clamping drive mechanism three (911) arranged on the workbench (1), a connecting plate three (912) connected to the output end of the clamping drive mechanism three (911), and a rubber roller three (913) arranged on the connecting plate three (912); the rubber roller three (913) and the probe assembly (14) are respectively arranged on one side of the connecting plate three (912) close to the feeding assembly two (8); the side clamping device four (92) comprises a clamping drive mechanism four (921) arranged on the frame two (12) and a clamping plate (922) connected to the output end of the clamping drive mechanism four (921); the clamping plate (922) is arranged close to the feeding assembly two (8); the conductive assembly two is arranged on the clamping plate (922).

5. The battery cell detection device according to claim 1, characterized in that: The cell size measuring unit further comprises a displacement assembly (2) arranged on the frame one (11), the output end of the displacement assembly (2) being connected to the height measuring assembly (32); the displacement assembly (2) being used to drive the height measuring assembly (32) to move in a direction parallel to the feeding assembly one (4).

6. A battery cell testing device according to claim 5, characterized in that: The displacement assembly (2) comprises a displacement drive device (21) arranged on the frame one (11) and a moving seat (22) having one end connected to the output end of the displacement drive device (21), and the other end of the moving seat (22) is connected to the height measuring assembly (32); the moving seat (22) is slidably connected to the frame one (11).

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