A battery cell detection device and method

Abstract

The present invention discloses a battery cell detection device and method, belonging to the field of battery cell detection. A battery cell detection device includes a detection table and an appearance detector fixed on its top. A working station disk is rotatably connected to the top of the detection table. A plurality of groups of detection boxes are equidistantly arranged on the working station disk, and a driving part for driving the working station disk to rotate is arranged in the detection table. The device further includes a flipping mechanism, and the flipping mechanism is arranged in the detection box. Through the setting of the working station disk, the present invention realizes the simultaneous operation and detection of multiple working stations, effectively improves the detection effect, and cooperates with the attraction between the magnetic area and the upper magnetic plate, enabling the battery cell passing under the appearance detector to roll, so as to realize the comprehensive detection of the battery cell to be detected, effectively improving the detection efficiency. Moreover, relying on its own self-rolling and flipping, it can effectively reduce the friction effect and improve the protection effect on the battery cell to be detected.

Description

Technical Field

[0001] The present invention relates to the technical field of battery cell detection, and particularly to a battery cell detection device and method. Background Art

[0002] Battery cells are the basic units that make up a battery, responsible for storing and releasing electrical energy, and are usually cylindrical in shape. They generate current through chemical reactions and can be rechargeable secondary batteries or disposable primary batteries. In order to ensure that the safety, performance, and lifespan of the batteries meet the standard requirements, it is necessary to conduct quality inspections on the produced battery cells.

[0003] Currently, when conducting appearance inspections on battery cells, high-resolution cameras are usually combined with appropriate light sources to effectively detect physical damages such as scratches, dents, and cracks on the surface of the battery cells. However, when manually or using equipment to conduct appearance inspections on battery cells, the following deficiencies still exist. Firstly, manual inspection efficiency is low and cannot meet the requirements of high-efficiency production. Secondly, when existing equipment conducts inspections, it cannot flip the battery cells in real time, and generally, a material turning mechanism needs to be added, thus reducing the inspection efficiency. Moreover, impurities may adhere to the surface of the battery cells, which will block the detection by the camera and reduce the detection accuracy. Therefore, a battery cell detection device and method are proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems of low inspection efficiency when manually or using equipment to conduct appearance inspections on battery cells, and the impurities adhering to the surface of the battery cells blocking the detection and reducing the detection accuracy, and to propose a battery cell detection device and method.

[0005] In order to achieve the above purpose, the present invention adopts the following technical scheme:

[0006] A battery cell detection device includes a detection table and an appearance detector fixed on its top. A working station disk is rotatably connected to the top of the detection table. Multiple groups of detection boxes are equidistantly arranged on the working station disk, and a driving part for driving the working station disk to rotate is arranged in the detection table. The device further includes: a flipping mechanism arranged in the detection box for flipping the battery cells in the detection box; and a cleaning component arranged in the detection table for cleaning the surface of the battery cells in the detection box.

[0007] To improve the detection efficiency, preferably, the driving part includes a driving gear disk which is fixed to the bottom of the working station disk. A servo motor is fixedly connected to the bottom of the inner cavity of the detection table. A driving gear is fixedly connected to the side wall of the output shaft of the servo motor. A reduction gear is rotatably connected to the bottom of the inner cavity of the detection table. The driving gear is meshed with the reduction gear, and the reduction gear is meshed with the driving gear disk.

[0008] To improve the detection effect, preferably, the flipping mechanism includes a flipping plate which is rotatably connected in the detection box. Limiting sliding grooves are respectively formed on both sides of the inner wall of the detection box. Limiting sliding rods are fixedly connected in the limiting sliding grooves. A first spring is sleeved on the limiting sliding rods. A positioning plate is slidably sleeved on the limiting sliding rods. The bottom of the positioning plate is fixedly connected to the top of the first spring. A top magnetic plate is slidably connected to the bottom of the working station disk below each group of detection boxes. A pulling rope is fixedly connected to the bottom of the positioning plate. The pulling rope penetrates downward through the working station disk and is fixedly connected to the top of the positioning plate. A bottom magnetic disk is fixedly connected to the inner wall of the detection table, and the bottom magnetic disk is located directly below the appearance detector.

[0009] Furthermore, the bottom magnetic disk is divided into three magnetic regions with gradually increasing intensities, and the increasing direction of the magnetic regions is the same as the rotation direction of the working station disk. Each group of magnetic regions is magnetically attracted to the top magnetic plate.

[0010] Furthermore, positioning blocks are fixedly connected to both sides of the top of the inner wall of the detection box, and the magnetic attraction between the magnetic region and the top magnetic plate is greater than the pulling force required for the first spring to be compressed.

[0011] To improve the detection accuracy, preferably, the cleaning component includes a wind guiding box which is fixed to the bottom of the inner cavity of the detection table. An air inlet groove and an air outlet groove are respectively formed on both sides of the inner cavity of the detection box. Air guiding holes are equidistantly formed on the side walls of the air inlet groove and the air outlet groove. A first air groove and a second air groove are respectively formed in the working station disk. The first air groove is communicated with the air inlet groove, and the second air groove is communicated with the air outlet groove. A sealing ring is fixedly connected to the outer wall of the wind guiding box. The sealing ring is in rotational fit with the bottom of the working station disk. The sealing ring is divided into two first through grooves and a second through groove inside. The first through groove is communicated with the first air groove, and the second through groove is communicated with the second air groove. An air inlet pipe is fixedly connected and communicated to the bottom of the first through groove. The output end of the air inlet pipe is communicated with the inner cavity of the wind guiding box. An air outlet pipe is fixedly connected and communicated to the bottom of the second through groove. The input end of the air outlet pipe is communicated with the inner cavity of the wind guiding box. A flow guiding part for generating a directional air flow is arranged in the wind guiding box.

[0012] Further, the air guiding part includes a driven shaft rotatably connected inside the air guiding box. The top end of the driven shaft penetrates above the top of the air guiding box and is drivingly connected to the output shaft of the servo motor through a pulley group. An air guiding blade is fixedly connected to the outer wall of the driven shaft located inside the air guiding box.

[0013] To facilitate dust collection, preferably, a filter box is fixedly connected to the intake pipe. The filter box communicates with the inner cavity of the intake pipe. A filter disk is rotatably connected inside the filter box. A linkage groove is formed at the top of the filter disk. A linkage ring is fixedly connected to the bottom of the work station disk. The linkage ring passes through the linkage groove and fits and rotates with the side wall of the filter disk. And a sealing treatment is performed between the side wall of the linkage ring and the inner wall of the linkage groove.

[0014] To improve the filtering effect, further, anti-blowing pipes are fixedly connected and communicated on both sides of the filter box. The other ends of the two anti-blowing pipes are fixedly connected and communicated with a piston box. A piston plate is slidably connected inside the piston box. A second spring is fixedly connected between the side wall of the piston plate and the inner wall of the piston box. A strong magnetic plate is fixedly connected to the side wall of the runner of the pulley group located on the driven shaft. The strong magnetic plate and the piston plate repel each other magnetically.

[0015] A method for detecting a battery cell is as follows;

[0016] Step 1: Place the battery cell to be tested into the detection table at the loading station.

[0017] Step 2: Switch the station where the battery cell to be tested is located and clean its surface.

[0018] Step 3: Flip the battery cell to be tested to conduct a comprehensive appearance inspection.

[0019] Step 4: Take out the tested battery cell from the detection table at the unloading station.

[0020] Compared with the prior art, the present invention provides a battery cell detection device and method, having the following beneficial effects:

[0021] 1. For this battery cell detection device, through the setting of the work station disk, the simultaneous operation and detection of multiple stations are realized, effectively improving the detection effect. And with the attraction between the magnetic area and the upper magnetic plate, the battery cell passing under the appearance detector can be made to roll, so as to realize the comprehensive detection of the battery cell to be tested, effectively improving the detection efficiency. Moreover, relying on its own self-rolling and flipping, the friction effect can be effectively reduced, improving the protection effect on the battery cell to be tested.

[0022] 2. The battery cell detection device uses the directional circulating air flow generated by the rotation of the air guide blades to take away the dust attached to the surface of the battery cell to be tested, improving the cleanliness of the surface of the battery cell to be tested. Moreover, since the air flow speed in the detection box is relatively fast, the air flow around the detection end of the appearance detector will also move into the detection box, effectively preventing dust from adhering to the detection end of the appearance detector, thereby effectively improving the detection accuracy.

[0023] 3. The battery cell detection device uses the frictional effect between the linkage ring and the filter disc to make the filter disc rotate for filtration, thereby continuously switching the filtration surface and effectively improving the filtration effect. Moreover, by using the repulsive effect between the strong magnetic plate and the piston plate, the filter disc can be backflushed and cleaned through the backflush pipe, effectively improving the service effect of the filter disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the front view overall structural schematic diagram of a battery cell detection device proposed by the present invention;

[0025] Figure 2 is the side view sectional structural schematic of a battery cell detection device proposed by the present invention Figure 1 ;

[0026] Figure 3 is the Figure 2 magnified structural schematic diagram of area A in a battery cell detection device proposed by the present invention;

[0027] Figure 4 is the side view sectional structural schematic of a battery cell detection device proposed by the present invention Figure 2 ;

[0028] Figure 5 is the Figure 4 magnified structural schematic diagram of area B in a battery cell detection device proposed by the present invention;

[0029] Figure 6 is the side view sectional structural schematic of a battery cell detection device proposed by the present invention Figure 3 ;

[0030] Figure 7 is the Figure 6 magnified structural schematic diagram of area C in a battery cell detection device proposed by the present invention;

[0031] Figure 8 is the internal horizontal sectional structural schematic diagram of the detection table of a battery cell detection device proposed by the present invention;

[0032] Figure 9 is the Figure 8 magnified structural schematic diagram of area D in a battery cell detection device proposed by the present invention.

[0033] In the figure: 1, inspection table; 2, appearance detector; 3, working position disk; 31, first air groove; 32, second air groove; 33, linkage ring; 4, inspection box; 41, air inlet groove; 42, air outlet groove; 43, air guiding hole; 44, positioning block; 5, turning plate; 51, limiting sliding groove; 52, limiting sliding rod; 521, first spring; 53, positioning plate; 531, pulling rope; 54, upper magnetic plate; 55, lower magnetic disk; 551, magnetic region; 6, driving gear disk; 61, servo motor; 62, driving gear; 63, reduction gear; 64, pulley group; 7, air guiding box; 71, sealing ring; 711, first through groove; 712, second through groove; 72, air inlet pipe; 73, air outlet pipe; 74, driven shaft; 741, air guiding blade; 8, filtering box; 81, filtering disk; 82, linkage groove; 9, back blowing pipe; 91, piston box; 92, piston plate; 93, second spring; 94, strong magnetic plate. Specific implementation mode

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0035] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0036] Embodiment 1:

[0037] Refer to Figures 1-9 , a battery cell detection device, including an inspection table 1 and an appearance detector 2 fixed on its top. A working position disk 3 is rotatably connected to the top of the inspection table 1. A plurality of groups of inspection boxes 4 are equidistantly arranged on the working position disk 3. And a driving part for driving the working position disk 3 to rotate is arranged in the inspection table 1. It further includes: a turning mechanism, which is arranged in the inspection box 4 and is used to turn the battery cell in the inspection box 4; a cleaning component, which is arranged in the inspection table 1 and is used to clean the surface of the battery cell in the inspection box 4.

[0038] Refer to Figure 4 , Figure 6 and Figure 8, wherein the driving part includes a driving gear disk 6, the driving gear disk 6 is fixed to the bottom of the working station disk 3, a servo motor 61 is fixedly connected to the bottom of the inner cavity of the inspection table 1, a driving gear 62 is fixedly connected to the side wall of the output shaft of the servo motor 61, a reduction gear 63 is rotatably connected to the bottom of the inner cavity of the inspection table 1, the driving gear 62 is meshed with the reduction gear 63, and the reduction gear 63 is meshed with the driving gear disk 6.

[0039] It should be noted that the bottom of the appearance detector 2 is the inspection station, and the opposite side of the appearance detector 2 is the loading station. As shown in ( Figure 1 ) the working station disk 3 rotates counterclockwise. After passing through the inspection station, it first reaches the cleaning station, then the inspection station, and finally the unloading station.

[0040] Through the setting of the above structure, first at the loading station, the battery cell to be tested is placed on the turning plate 5 in the inspection box 4 through a mechanical disk or manually, and the servo motor 61 is started. Through the meshing transmission of the driving gear 62, the reduction gear 63 and the driving gear disk 6, the working station disk 3 will be driven to rotate counterclockwise. At this time, the battery cell to be tested will pass through each station in turn. Finally, the battery cell to be tested will move to the unloading station, and then it will be taken out through a robotic arm or manually. And the above four stations can carry out cyclic inspection operations simultaneously, thereby effectively improving the inspection efficiency.

[0041] Refer to Figures 2-4 , wherein the turning mechanism includes a turning plate 5, the turning plate 5 is rotatably connected in the inspection box 4, limiting sliding grooves 51 are opened on both sides of the inner wall of the inspection box 4, limiting sliding rods 52 are fixedly connected in the limiting sliding grooves 51, a first spring 521 is sleeved on the limiting sliding rods 52, a positioning plate 53 is slidably sleeved on the limiting sliding rods 52, the bottom of the positioning plate 53 is fixedly connected to the top of the first spring 521, a magnetic plate 54 is slidably connected under the bottom of the working station disk 3 at the lower part of each inspection box 4, a pulling rope 531 is fixedly connected to the bottom of the positioning plate 53, the pulling rope 531 penetrates downward through the working station disk 3 and is fixedly connected to the top of the positioning plate 53, a lower magnetic disk 55 is fixedly connected to the inner wall of the inspection table 1, and the lower magnetic disk 55 is located directly below the appearance detector 2; the lower magnetic disk 55 is divided into three magnetic regions 551 with gradually increasing intensities, and the increasing direction of the magnetic regions 551 is the same as the rotation direction of the working station disk 3. Each magnetic region 551 is magnetically attracted to the magnetic plate 54; positioning blocks 44 are fixedly connected to both sides of the top of the inner wall of the inspection box 4, and the magnetic attraction between the magnetic region 551 and the magnetic plate 54 is greater than the pulling force required for the first spring 521 to be compressed.

[0042] Through the arrangement of the above structure, when the detection box 4 rotates with the work station disk 3 and passes through the detection station, the upper magnetic plate 54 will be pulled downward gradually by the attraction between the magnetic area 551 with increasing strength and the upper magnetic plate 54, and the end of the flip plate 5 will be pulled downward by the pull rope 531. At this time, the height of the flip plate 5 close to the positioning block 44 will be lower than the other side, and the battery cell to be tested will roll along the flip plate 5 to the lower side under the action of gravity. In this way, the battery cell to be tested can be rolled and flipped during the process of the detection box 4 passing the detection station, thereby realizing comprehensive detection of the battery cell to be tested, effectively improving the detection efficiency, and relying on its own rolling and flipping, without adding other forces, it can minimize the damage to the battery cell to be tested caused by friction and the like, thereby improving the protection effect of the battery cell to be tested during the detection process, and in the detection process, the directional airflow continues to act, which can clean the blocking surface at the bottom of the battery cell to be tested, further ensuring the accuracy of the detection results.

[0043] Reference Figures 3-6 , wherein the cleaning component includes an air guide box 7, which is fixed to the bottom of the inner cavity of the detection table 1, and an air inlet groove 41 and an air outlet groove 42 are respectively opened on both sides of the inner cavity of the detection box 4, and the side walls of the air inlet groove 41 and the air outlet groove 42 are evenly spaced to open air guide holes 43, and a first air groove 31 and a second air groove 32 are respectively opened in the work station 3, the first air groove 31 is connected to the air inlet groove 41, and the second air groove 32 is connected to the air outlet groove 42, and a sealing ring 71 is fixedly connected to the outer wall of the air guide box 7, the sealing ring 71 is fitted and rotated with the bottom of the work station 3, and the sealing ring 71 is divided into two first through grooves 711 and second through grooves 712, and the first through groove 711 is connected to the first air groove 31 The second through groove 712 is connected to the second air groove 32. The bottom of the first through groove 711 is fixed and connected to the air inlet pipe 72. The output end of the air inlet pipe 72 is connected to the inner cavity of the air guide box 7. The bottom of the second through groove 712 is fixed and connected to the air outlet pipe 73. The input end of the air outlet pipe 73 is connected to the inner cavity of the air guide box 7. A guide part for generating directional airflow is provided in the air guide box 7; the guide part includes a driven shaft 74, which is rotatably connected in the air guide box 7. The top end of the driven shaft 74 passes through the top of the air guide box 7 and is connected to the output shaft of the servo motor 61 through a pulley group 64. The outer wall of the driven shaft 74 in the air guide box 7 is fixedly connected with an air guide blade 741.

[0044] With the above structure set, when the servo motor 61 rotates, it will drive the driven shaft 74 and the air guide vane 741 to rotate rapidly in the air guide box 7 through the pulley group 64, causing a pressure difference between the upper and lower parts of the air guide vane 741, making the air flow at the top of the air guide box 7 move towards the bottom. At this time, the air flow at the air inlet groove 41 will be sucked into the top of the air guide box 7 along the first air groove 31, the first through groove 711 and the air inlet pipe 72, and then pushed to the bottom of the air guide box 7. The air flow at the bottom of the air guide box 7 will enter the air outlet pipe 73 and blow towards the battery cell to be tested from the air outlet hole 43 along the second through groove 712, the second air groove 32 and the air outlet groove 42. The air outlet hole 43 on the other side will continue to suck this part of the air flow into the air guide box 7. At this time, a circulating air flow with directional movement is formed, so as to take away the dust attached to the surface of the battery cell to be tested, effectively improving the cleanliness of the surface of the battery cell to be tested, and thus improving the accuracy of detection. And when the detection box 4 moves below the appearance detector 2, due to the relatively fast air flow speed in the detection box 4, according to Bernoulli's principle, the air flow with a slower speed around the detection end of the appearance detector 2 will move into the detection box 4 with a faster air flow speed, effectively preventing dust from adhering to the detection end of the appearance detector 2, effectively improving the clarity of the detection end of the appearance detector 2, and thus further improving the accuracy of detection.

[0045] Referring to Figures 6-9 , wherein, a filter box 8 is fixedly connected to the air inlet pipe 72. The filter box 8 is communicated with the inner cavity of the air inlet pipe 72. A filter disc 81 is rotatably connected in the filter box 8. A linkage groove 82 is formed at the top of the filter disc 81. A linkage ring 33 is fixedly connected to the bottom of the workbench disc 3. The linkage ring 33 passes through the linkage groove 82 and fits and rotates with the side wall of the filter disc 81, and the side wall of the linkage ring 33 and the inner wall of the linkage groove 82 are sealed. Both sides of the filter box 8 are fixedly and communicated with an anti-blow pipe 9. The other ends of the two anti-blow pipes 9 are fixedly and communicated with a piston box 91. A piston plate 92 is slidably connected in the piston box 91. A second spring 93 is fixedly connected between the side wall of the piston plate 92 and the inner wall of the piston box 91. A strong magnetic plate 94 is fixedly connected to the side wall of the runner of the pulley group 64 located on the driven shaft 74. The strong magnetic plate 94 and the piston plate 92 are magnetically repulsive.

[0046] With the above structure set up, the air flow circulating along the intake pipe 72 will pass through the filter disks 81 in the filter box 8. Only after passing through the filter can it enter the subsequent recycling, effectively reducing the dust content in the detection area, improving the detection effect, and at the same time avoiding the situation where the dust carried by the air flow wears the battery cell to be tested. Moreover, when the workbench 3 rotates, the friction between the linkage ring 33 and the filter disk 81 will drive the filter disk 81 to rotate continuously, thereby continuously switching the filter surface and effectively improving the filtering effect. And during the rotation of the pulley group 64, the repulsive force between the strong magnetic plate 94 and the piston plate 92 will push the piston plate 92 to move towards the side compressing the second spring 93, so that the air flow in the piston box 91 is compressed and conveyed along the back-blowing pipe 9 to the filter box 8, thereby back-blowing and cleaning the rotating filter disk 81 from both sides, effectively improving the service effect of the filter disk 81.

[0047] Embodiment 2:

[0048] Referring to Figures 1-9 , which is basically the same as Embodiment 1. On the basis of Embodiment 1, a battery cell detection method is proposed, and the steps are as follows;

[0049] Step 1: Place the battery cell to be tested into the detection table 1 at the loading station.

[0050] Step 2: Switch the station where the battery cell to be tested is located and clean its surface.

[0051] Step 3: Flip the battery cell to be tested for a comprehensive appearance inspection.

[0052] Step 4: Take out the tested battery cell from the detection table 1 at the unloading station.

[0053] Referring to Figures 1-9, in the present invention, during use, at the loading station, the battery cell to be tested is placed on the turning plate 5 in the detection box 4 by a mechanical disk or manually. At this time, the side of the turning plate 5 close to the positioning block 44 is higher, so the battery cell to be tested will stay on the lower side of the turning plate 5. Subsequently, the servo motor 61 is started. Through the meshing transmission of the driving gear 62, the reduction gear 63, and the driving disk 6, the station disk 3 will be driven to rotate counterclockwise. At this time, the detection box 4 at the loading station will move from the cleaning station to the detection station. When the servo motor 61 rotates, it will drive the driven shaft 74 and the air guide vane 741 to rotate rapidly in the air guide box 7 through the pulley group 64, causing a pressure difference between the upper and lower parts of the air guide vane 741, making the air flow at the top of the air guide box 7 move towards the bottom. At this time, the air flow at the air inlet groove 41 will be sucked into the top of the air guide box 7 along the first air groove 31, the first through groove 711, and the air inlet pipe 72, and then pushed to the bottom of the air guide box 7. The air flow at the bottom of the air guide box 7 will enter the air outlet pipe 73 and blow towards the battery cell to be tested from the air guide hole 43 along the second through groove 712, the second air groove 32, and the air outlet groove 42. The air guide hole 43 on the other side will continue to suck this part of the air flow into the air guide box 7. At this time, a circulating air flow with a directional movement is formed to take away the dust attached to the surface of the battery cell to be tested, effectively improving the cleanliness of the surface of the battery cell to be tested, and thus improving the accuracy of detection. The above-mentioned circulating air flow will pass through the filter disk 81 in the filter box 8 and can only enter the subsequent circulation after being filtered, effectively reducing the dust content in the detection area, improving the detection effect, and at the same time avoiding the situation that the dust carried by the air flow causes abrasion to the battery cell to be tested. Moreover, when the station disk 3 rotates, the friction between the linkage ring 33 and the filter disk 81 will drive the filter disk 81 to rotate continuously, thereby continuously switching the filter surface and effectively improving the filtering effect. And during the rotation of the pulley group 64, the repulsive force between the strong magnetic plate 94 and the piston plate 92 will push the piston plate 92 to move towards the side of compressing the second spring 93, causing the air flow in the piston box 91 to be compressed and transported to the filter box 8 along the back blowing pipe 9, so as to blow and clean the rotating filter disk 81 from both sides, effectively improving the use effect of the filter disk 81.

[0054] When the detection box 4 rotates past the detection station following the working station plate 3, due to the attraction between the magnetic regions 551 with gradually increasing intensity and the upper magnetic plate 54, the upper magnetic plate 54 will be gradually pulled downward, and the end of the flip plate 5 will be pulled downward by the pull rope 531. At this time, the height of the flip plate 5 near the positioning block 44 will be lower than the other side. Under the action of gravity, the battery cell to be tested will roll along the flip plate 5 towards the lower side. In this way, during the process of the detection box 4 passing over the detection station, the battery cell to be tested can roll and flip, thereby realizing a comprehensive detection of the battery cell to be tested, effectively improving the detection efficiency. Moreover, relying on its own rolling and flipping, without adding other forces, it can minimize the damage to the battery cell to be tested caused by friction and other effects, and improve the protection effect on the battery cell to be tested during the detection process. And during the detection process, the directionally flowing air flow continues to act, which can clean the shielding surface located at the bottom of the battery cell to be tested, further ensuring the accuracy of the detection result. Finally, the battery cell to be tested will move to the unloading station and then be taken out by a robotic arm or manually. And the above four stations can simultaneously perform cyclic detection operations, thereby effectively improving the detection efficiency.

[0055] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A battery cell detection device, comprising a detection table (1) and an appearance detector (2) fixed on its top, characterized in that, A workbench (1) is rotatably connected to the top of a workbench plate (3). Multiple groups of detection boxes (4) are equidistantly arranged on the workbench plate (3). A driving part for driving the workbench plate (3) to rotate is arranged in the workbench (1). It further includes: A flipping mechanism arranged in the detection box (4) for flipping the battery cells in the detection box (4); A cleaning component arranged in the workbench (1) for cleaning the surfaces of the battery cells in the detection box (4); The flipping mechanism includes a flipping plate (5) rotatably connected in the detection box (4). Limiting sliding grooves (51) are opened on both sides of the inner wall of the detection box (4). Limiting sliding rods (52) are fixedly connected in the limiting sliding grooves (51). A first spring (521) is sleeved on the limiting sliding rod (52). A positioning plate (53) is slidably sleeved on the limiting sliding rod (52). The bottom of the positioning plate (53) is fixedly connected to the top of the first spring (521). A upper magnetic plate (54) is slidably connected to the bottom of the workbench plate (3) below each group of detection boxes (4). A pulling rope (531) is fixedly connected to the bottom of the positioning plate (53). The pulling rope (531) penetrates downward through the workbench plate (3) and is fixedly connected to the top of the positioning plate (53). The inner wall of the workbench (1) is fixedly connected with a lower magnetic disk (55), and the lower magnetic disk (55) is directly below the appearance detector (2); The lower magnetic disk (55) is divided into three magnetic regions (551) with gradually increasing intensities. The increasing direction of the magnetic regions (551) is the same as the rotation direction of the workbench plate (3). Each group of magnetic regions (551) is magnetically attracted to the upper magnetic plate (54).

2. The battery cell detection device according to claim 1, characterized in that, The driving part includes a driving gear disk (6) fixed to the bottom of the workbench plate (3). A servo motor (61) is fixedly connected to the bottom of the inner cavity of the workbench (1). A driving gear (62) is fixedly connected to the side wall of the output shaft of the servo motor (61). A reduction gear (63) is rotatably connected to the bottom of the inner cavity of the workbench (1). The driving gear (62) is meshed with the reduction gear (63). The reduction gear (63) is meshed with the driving gear disk (6).

3. The battery cell detection device according to claim 1, wherein Positioning blocks (44) are fixedly connected to both sides of the top of the inner wall of the detection box (4). The magnetic attraction between the magnetic region (551) and the upper magnetic plate (54) is greater than the pulling force required for the first spring (521) to be compressed.

4. The battery cell detection device according to claim 2, characterized in that, The cleaning component includes an air guide box (7), the air guide box (7) is fixed at the bottom inside the detection table (1), air inlet grooves (41) and air outlet grooves (42) are respectively formed on both sides inside the detection box (4), air guide holes (43) are evenly spaced on the side walls of the air inlet groove (41) and the air outlet groove (42), a first air groove (31) and a second air groove (32) are respectively formed in the workbench (3), the first air groove (31) is communicated with the air inlet groove (41), the second air groove (32) is communicated with the air outlet groove (42), a sealing ring (71) is fixedly connected to the outer wall of the air guide box (7), the sealing ring (71) fits and rotates with the bottom of the workbench (3), and the sealing ring (71) is divided into two first through grooves (711) and a second through groove (712) inside, the first through groove (711) is communicated with the first air groove (31), the second through groove (712) is communicated with the second air groove (32), an air inlet pipe (72) is fixedly connected and communicated to the bottom of the first through groove (711), the output end of the air inlet pipe (72) is communicated with the inside of the air guide box (7), an air outlet pipe (73) is fixedly connected and communicated to the bottom of the second through groove (712), the input end of the air outlet pipe (73) is communicated with the inside of the air guide box (7), and a flow guiding part for generating a directional air flow is arranged inside the air guide box (7).

5. A battery cell detection device according to claim 4, characterized in that, The flow guiding part includes a driven shaft (74), the driven shaft (74) is rotatably connected inside the air guide box (7), the top end of the driven shaft (74) penetrates above the top of the air guide box (7) and is in transmission connection with the output shaft of the servo motor (61) through a pulley group (64), and air guide blades (741) are fixedly connected to the outer wall of the driven shaft (74) located inside the air guide box (7).

6. The battery cell detection device according to claim 5, wherein, A filter box (8) is fixedly connected to the air inlet pipe (72), the filter box (8) is communicated with the inside of the air inlet pipe (72), a filter disc (81) is rotatably connected inside the filter box (8), a linkage groove (82) is formed at the top of the filter disc (81), a linkage ring (33) is fixedly connected to the bottom of the workbench (3), the linkage ring (33) passes through the linkage groove (82) and fits and rotates with the side wall of the filter disc (81), and the side wall of the linkage ring (33) and the inner wall of the linkage groove (82) are sealed.

7. The battery cell detection device according to claim 6, wherein Anti-blowing pipes (9) are fixedly connected and communicated to both sides of the filter box (8), the other ends of the two anti-blowing pipes (9) are fixedly connected and communicated to a piston box (91), a piston plate (92) is slidably connected inside the piston box (91), a second spring (93) is fixedly connected between the side wall of the piston plate (92) and the inner wall of the piston box (91), a strong magnetic plate (94) is fixedly connected to the side wall of the runner of the pulley group (64) located on the driven shaft (74), and the strong magnetic plate (94) and the piston plate (92) are magnetically repulsive.

8. A method for detecting a battery cell, using a battery cell detection device as described in any one of claims 1-7, characterized in that, The steps are as follows; Step 1: Place the battery cell to be tested into the detection table (1) at the loading station; Step 2: Switch the station where the battery cell to be tested is located and clean its surface; Step 3: Flip the battery cell to be tested and conduct a comprehensive visual inspection on it; Step 4: Take out the tested battery cell from the inspection table (1) at the blanking station.

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