Testing equipment

Abstract

This application discloses a testing device applied to battery cell testing, relating to the technical field of battery testing equipment. The testing device includes an operating platform, a support device, and a testing component. Both the support device and the testing component are mounted on the operating platform. The support device supports the battery cell. The testing component includes an image acquisition unit, a supplementary lighting unit, and a rotation drive unit. The image acquisition unit acquires image information of the battery cell on the support device. The output shaft of the rotation drive unit is connected to the supplementary lighting unit. When the testing device is in testing mode, the rotation drive unit can drive the supplementary lighting unit to rotate relative to the support device, so that the light-emitting surface of the supplementary lighting unit faces the side surface of the battery cell. This solution can address the current problem of high false negative rates in battery cell testing.

Description

Technical Field

[0001] This application belongs to the field of battery testing equipment technology, and specifically relates to a testing device. Background Technology

[0002] In the field of defect detection for battery products, the introduction of high-precision image recognition technology has greatly improved the accuracy and efficiency of battery testing.

[0003] However, current detection methods suffer from uneven illumination by the supplementary lighting components of the detection equipment, resulting in insufficient resolution and recognition accuracy of the image acquisition components for the minute defects on the surface of the battery cell, the core component of the battery, thus causing a high rate of missed detection of the battery cell. Utility Model Content

[0004] The purpose of this application is to provide a testing device for battery cell testing, which can solve the problem of high failure rate in current battery cell testing.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] This application provides a testing device for battery cell testing, including an operating platform, a support device, and a testing component. Both the support device and the testing component are mounted on the operating platform. The support device supports the battery cell, and the testing component includes an image acquisition unit, a supplementary lighting unit, and a rotation drive unit. The image acquisition unit acquires image information of the battery cell on the support device, and the output shaft of the rotation drive unit is connected to the supplementary lighting unit.

[0007] When the detection device is in the detection state, the rotary drive can drive the supplementary light component to rotate relative to the support device, so that the light-emitting surface of the supplementary light component faces the side surface of the battery cell.

[0008] In this embodiment, a rotary drive is installed on the operating platform of the detection equipment. The output shaft of the rotary drive is connected to the supplementary lighting component. When the detection equipment is in detection mode, the rotary drive can drive the supplementary lighting component to rotate relative to the supporting device, thereby adjusting the relative position between the light-emitting surface of the supplementary lighting component and the battery cell. This ensures that the light-emitting surface of the supplementary lighting component faces the side surface of the battery cell, thereby improving the uniformity of illumination of the supplementary lighting component. Consequently, this improves the resolution and recognition accuracy of the image acquisition component for minute defects on the side surface of the battery cell, reducing the false negative rate of the battery cell. Therefore, this embodiment can solve the problem of the current high false negative rate of battery cells. Attached Figure Description

[0009] Figures 1 to 2 These are partial structural schematic diagrams of the detection equipment disclosed in the embodiments of this application from different perspectives;

[0010] Figure 3 This is a schematic diagram of the structure of the support platform and the rotary table disclosed in the embodiments of this application.

[0011] Explanation of reference numerals in the attached figures:

[0012] 100-Operating Platform;

[0013] 200-Bearing device, 210-Bearing platform, 211-Positioning groove, 211a-Through hole, 220-Transfer mechanism, 230-Rotating table;

[0014] 300-Detection component, 310-Image acquisition component, 320-Fill light component, 321-Light emitting surface, 322-First fill light component, 323-Second fill light component, 324-Third fill light component, 325-Fourth fill light component, 330-Rotation drive component, 340-Base;

[0015] 410 - First support, 420 - Second support;

[0016] 500 - Translation drive component. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0019] The detection equipment provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0020] like Figures 1 to 3 As shown in the figure, this application embodiment provides a testing device that is applied to battery cell testing. Of course, this testing device can also be applied to the testing of other products, and this application embodiment does not impose any specific limitations on it.

[0021] The following is a detailed description using testing equipment to test battery cells as an example:

[0022] The testing equipment includes an operating platform 100, a support device 200, and a testing component 300. Both the support device 200 and the testing component 300 are mounted on the operating platform 100. The support device 200 is used to support battery cells; specifically, the support device 200 has a support surface on which the battery cells can be placed. The testing component 300 includes an image acquisition element 310, a supplementary lighting element 320, and a rotation drive element 330. The image acquisition element 310 is used to acquire image information of the battery cells on the support device 200. Optionally, the image acquisition element... The image acquisition device 310 can be a camera, or other types of image acquisition devices; this application embodiment does not impose specific limitations on this. Optionally, the supplementary lighting device 320 is rotatably mounted on the operating platform 100. The output shaft of the rotary drive device 330 is connected to the supplementary lighting device 320. Optionally, the supplementary lighting device 320 can be a lamp tube, or other types of lighting fixtures; this application embodiment does not impose specific limitations on this. Optionally, the rotary drive device 330 can be a motor, rotary cylinder, or other drive devices; this application embodiment does not impose specific limitations on this.

[0023] When the testing equipment is in testing mode, the rotary drive 330 can drive the supplementary lighting component 320 to rotate relative to the carrier device 200, so that the light-emitting surface 321 of the supplementary lighting component 320 faces the side surface of the battery cell (the side surface specifically refers to the surface of the battery cell in its circumferential direction). Specifically, when the carrier stage 210 is located at the testing position and carries the battery cell, the image acquisition component 310 first acquires the image information of the side surface of the battery cell, and then determines whether it is necessary to adjust the illumination angle of the light emitted by the supplementary lighting component 320 based on the image information. If adjustment is required, the rotary drive 330 drives the supplementary lighting component 320 to rotate relative to the carrier device 200 to adjust the illumination angle of the supplementary lighting component 320, so that the light-emitting surface 321 of the supplementary lighting component 320 faces the side surface of the battery cell, thereby improving the illumination uniformity of the supplementary lighting component 320.

[0024] In this embodiment, a rotary drive 330 is provided on the operating platform 100 of the detection equipment. The output shaft of the rotary drive 330 is connected to the supplementary lighting component 320. When the detection equipment is in the detection state, the rotary drive 330 can drive the supplementary lighting component 320 to rotate relative to the support device 200, thereby adjusting the relative position between the light-emitting surface 321 of the supplementary lighting component 320 and the battery cell. This makes the light-emitting surface 321 of the supplementary lighting component 320 face the side surface of the battery cell, thereby improving the illumination uniformity of the supplementary lighting component 320. This, in turn, improves the resolution and recognition accuracy of the image acquisition component 310 for minor defects on the side surface of the battery cell, thus reducing the false negative rate of the battery cell. Therefore, this embodiment can solve the problem of the current high false negative rate of battery cells.

[0025] In one optional embodiment, the carrier device 200 includes a carrier platform 210 for carrying the battery cell. The carrier platform 210 is provided with a carrier surface. The detection device also includes a control component. The control component is electrically connected to the image acquisition component 310, the supplementary lighting component 320, and the rotation drive component 330. The control component can control the working state of the rotation drive component 330 according to the image information acquired by the image acquisition component 310, so as to adjust the relative position of the light-emitting surface 321 of the supplementary lighting component 320 and the side surface of the battery cell. The control component is used to determine whether the image information acquired by the image acquisition component 310 meets the preset image information. Before the testing equipment is used to test the battery cells, a calibration block is first set according to the size of the battery cell. This calibration block is placed on the support stage 210. Then, the relative position of the light-emitting surface 321 of the supplementary lighting element 320 and the side surface of the battery cell is adjusted to the optimal position, so that the light emitted by the supplementary lighting element 320 evenly illuminates the side surface of the battery cell. Then, the image acquisition element 310 acquires the image information of the side surface of the calibration block and stores this image information in the control unit. This image information serves as preset image information. During the testing process, the control unit compares the image information of the side surface of each battery cell acquired by the image acquisition element 310 with the preset image information to determine whether the tested battery cell has defects, thereby improving the testing accuracy of the equipment. Alternatively, the image information acquired by the image acquisition element 310 can be manually observed to determine whether the tested battery cell is qualified.

[0026] In a further optional embodiment, the carrier device 200 further includes a transport mechanism 220 disposed on the operating platform 100. The carrier platform 210 is connected to the transport mechanism 220. Optionally, the transport mechanism 220 includes a slide rail, a slider, and a drive component. The slide rail and the drive component are both disposed on the operating platform. The slider and the slide rail are slidably connected. The carrier platform 210 is connected to the slider. The output shaft of the drive component is connected to the slider. The drive component can drive the slider to slide relative to the slide rail. The slider can drive the carrier platform 210 to slide relative to the slide rail. The supplementary lighting component 320 is located on one side of the transport mechanism 220. The transport mechanism 220 is electrically connected to the control component. When the detection device is in the detection state, the control component can control the transport mechanism 220 to move the carrier platform 210 relative to the operating platform 100 by a preset distance so that the first area of ​​the battery cell is opposite to the image acquisition component 310. For the same model of battery cell, the locations with a higher probability of defects are usually relatively fixed. Therefore, during the battery cell inspection process, the control unit can control the transport mechanism 220 to move the battery cell relative to the operating platform 100 a preset distance, so as to quickly align the defective area of ​​the battery cell with the image acquisition unit 310, placing the battery cell at the detection position of the operating platform 100, thereby improving the inspection efficiency of the inspection equipment. Of course, the moving distance of the carrier platform 210 relative to the operating platform 100 can also be determined according to the actual situation of each battery cell; or, the aforementioned transport mechanism 220 can be omitted, and the carrier platform 210 can be directly set at the detection position of the operating platform 100.

[0027] It should be noted that the aforementioned preset distance can be a specific value or a range of values, and this application embodiment does not impose specific limitations on it.

[0028] In a further optional embodiment, the bearing surface of the support platform 210 can be a planar structure, or the bearing surface of the support platform 210 is provided with a positioning groove 211. The positioning groove 211 is used to position the battery cell, and at least a portion of the battery cell can be placed in the positioning groove 211, thereby preventing the battery cell from moving relative to the support platform 210 or even falling off the support platform 210 during the process of the transport mechanism 220 moving the battery cell relative to the operating platform 100, thus ensuring the stability of the battery cell supported on the support platform 210. The side wall of the positioning groove 211 is provided with a plurality of through holes 211a arranged at intervals along the moving direction of the support platform 210. The light emitted from the light-emitting surface 321 passes through the through holes 211a and illuminates the positioning groove 211, so that part of the light illuminates the side surface of the battery cell. At this time, the image acquisition unit 310 acquires image information of the side surface of the battery cell through each through hole 211a.

[0029] Optionally, the diameter of each through hole 211a may be the same; or, in other optional embodiments, at least two of the through holes 211a may have different diameters to accommodate defects of different levels and types in the battery cell, thereby improving the detection accuracy of the testing equipment.

[0030] Optionally, the shapes of each through hole 211a may be the same; or, in other optional embodiments, at least two of the multiple through holes 211a may have different shapes to accommodate defects of different levels and types in the battery cell, thereby improving the detection accuracy of the detection equipment.

[0031] Optionally, to improve the comprehensiveness of battery cell detection, an image acquisition unit 310, a supplementary lighting unit 320, and a rotation drive unit 330 can be provided on each side of the support platform 210; or, in other optional embodiments, the support device 200 further includes a rotating platform 230, which is connected to the support platform 210. Optionally, the rotating platform 230 may include a drive source and a support plate, with the output shaft of the drive source connected to the support plate, and the support platform 210 stacked on the support plate; of course, the rotating platform 230 may also only include a drive source (such as a motor, a rotary cylinder, etc.), and this application embodiment does not impose specific limitations on this. The rotary table 230 can drive the carrier table 210 to rotate relative to the operating platform 100 so that different sides of the battery cell can be opposite to the image acquisition unit 310. When one side surface of the battery cell is inspected, the rotary table 230 can drive the battery cell to rotate so that the other side surface of the battery cell is opposite to the image acquisition unit 310 to detect whether there are defects on that side surface. This process continues until all sides of the battery cell are inspected, thereby improving the comprehensiveness and accuracy of the inspection. At the same time, it can reduce the number of parts of the inspection equipment to save costs.

[0032] In another optional embodiment, the supplementary lighting element 320 and the image acquisition element 310 are both located on the same side of the support device 200. In this case, the rotation drive element 330 and the supplementary lighting element 320 can be set on the same side of the support device 200 to facilitate their connection. Furthermore, the arrangement of each structure on the same side of the support device 200 can make the arrangement of each structure more compact, thereby reducing the size of the detection device.

[0033] Optionally, the number of supplementary lighting elements 320 can be one, or the number of supplementary lighting elements 320 can be at least two, including a first supplementary lighting element 322 and a second supplementary lighting element 323 arranged at intervals. The first supplementary lighting element 322 and the second supplementary lighting element 323 are respectively located on opposite sides of the support device 200 (i.e., the first supplementary lighting element 322 and the second supplementary lighting element 323 are respectively located on opposite sides of the support device 200 in its width direction). The rotation drive element 330 and the image acquisition element 310 are respectively arranged in a one-to-one correspondence with the supplementary lighting element 320. When the battery cell is in the detection position, the light emitted by the first supplementary lighting element 322 and the second supplementary lighting element 323 arranged on opposite sides of the support device 200 illuminates the two opposite sides of the battery cell respectively. At this time, the image acquisition elements 310 arranged on opposite sides of the support device 200 work simultaneously to acquire image information of the two opposite sides of the battery cell respectively. This can increase the area of ​​the battery cell side surface detected by the detection equipment in the same time period, thereby improving the working efficiency of the detection equipment.

[0034] In another optional embodiment, the number of supplementary lighting elements 320 can be one, or the number of supplementary lighting elements 320 can be at least two, including a third supplementary lighting element 324 and a fourth supplementary lighting element 325 arranged at intervals. The third supplementary lighting element 324 and the fourth supplementary lighting element 325 are both located on the same side of the support device 200 (i.e., the third supplementary lighting element 324 and the fourth supplementary lighting element 325 are both located on the same side of the support device 200 in its width direction). In the direction perpendicular to the support surface of the support device 200, the height of the third supplementary lighting element 324 is different from the height of the fourth supplementary lighting element 325. The number of rotary drive elements 330 can be at least two, including a first rotary drive element and a second rotary drive element arranged at intervals. The output shaft of the first rotary drive element is connected to the third supplementary lighting element 324, and the output shaft of the second rotary drive element is connected to the fourth supplementary lighting element 325. This solution increases the illumination angle by setting a third supplementary light element 324 and a fourth supplementary light element 325 with different heights on the same side of the carrier device 200, thereby improving the illumination uniformity of the same side surface of the battery cell. This is beneficial to further improve the image clarity acquired by the image acquisition unit 310.

[0035] In a further optional embodiment, the third supplementary lighting element 324 is located on the side of the fourth supplementary lighting element 325 away from the support device 200. The detection device also includes a first bracket 410. The number of third supplementary lighting elements 324 is at least two. The first rotary drive element is arranged in a one-to-one correspondence with the third supplementary lighting element 324. The first end of each third supplementary lighting element 324 is connected to the output shaft of each first rotary drive element. The second end of each third supplementary lighting element 324 is rotatably connected to the first bracket 410. The third supplementary lighting elements 324 are arranged at intervals along a direction perpendicular to the support surface of the support device 200. There is a first clearance space between adjacent third supplementary lighting elements 324. The support device 200 includes a support platform 210 and a rotary platform 230. The support platform 210 is used to support the battery cell. The output shaft of the rotary platform 230 is connected to the support platform 210. The rotary platform 230 can drive the support platform 210 to rotate so that part of the support platform 210 is located within the first clearance space.

[0036] Since the battery cell is typically rectangular, the support platform 210 is also rectangular to ensure a proper fit. After the two opposite sides of the battery cell in its width direction have been inspected, the support platform 210 is rotated by the rotary table 230, causing a portion (i.e., the end) of the support platform 210 to rotate into the first clearance space. At this point, the side of the battery cell in its length direction faces the light-emitting surface of the third supplementary lighting element 324 and the image acquisition element 310, facilitating inspection by the detection component 300. Furthermore, the distance between the side of the battery cell to be inspected and each supplementary lighting element 320 and the image acquisition element 310 is closer, which helps the image acquisition element 310 acquire clearer image information. Additionally, the space occupied by the support platform 210 on the operating platform 100 can be reduced. Of course, the support platform 210 can also always remain outside the first clearance space.

[0037] In another optional embodiment, the fourth supplementary lighting element 325 is located on the side of the third supplementary lighting element 324 near the support device 200. The detection device also includes a second bracket 420. The number of fourth supplementary lighting elements 325 is at least two. The second rotary drive element is arranged one-to-one with the fourth supplementary lighting element 325. The first end of each fourth supplementary lighting element 325 is connected to the output shaft of each second rotary drive element, and the second end of each fourth supplementary lighting element 325 is rotatably connected to the second bracket 420. The fourth supplementary lighting elements 325 are arranged at intervals along a direction perpendicular to the support surface of the support device 200. There is a second clearance space between adjacent fourth supplementary lighting elements 325. At least a portion of the image acquisition element 310 can be located within the second clearance space. In this case, the image acquisition element 310 is closer to the battery cell, which can make the image information acquired by the image acquisition element 310 clearer. Furthermore, this arrangement can reduce the space occupied by the image acquisition element 310 on the operating platform 100. Of course, the image acquisition element 310 can also be located outside the second clearance space.

[0038] Optionally, in an embodiment where the detection device further includes a first support 410 and at least two third supplementary lighting elements 324, the detection device also includes a second support 420 and at least two fourth supplementary lighting elements 325. The second rotary drive element and the fourth supplementary lighting element 325 are arranged in a one-to-one correspondence. The first end of each fourth supplementary lighting element 325 is connected to the output shaft of each second rotary drive element, and the second end of each fourth supplementary lighting element 325 is rotatably connected to the second support 420. The fourth supplementary lighting elements 325 are arranged at intervals along a direction perpendicular to the bearing surface of the bearing device 200. There is a second clearance space between adjacent fourth supplementary lighting elements 325. At least a portion of the image acquisition element 310 can be located in the second clearance space. The second clearance space is opposite to the first clearance space to avoid the incident light of the image acquisition element 310 being blocked. Optionally, in the direction perpendicular to the bearing surface of the bearing device 200, the size of the second clearance space is smaller than the size of the first clearance space. This can further increase the irradiation area of ​​the side surface of the battery cell, ensure that the light path of the image acquisition device 310 is not blocked, and also ensure that the size of the first clearance space is larger to avoid the bearing stage 210.

[0039] In another optional embodiment, the detection device further includes a translation drive 500 disposed on the operating platform 100, and the detection component 300 further includes a base 340 movably disposed on the operating platform 100. The image acquisition component 310, the supplementary lighting component 320, and the rotation drive 330 are all disposed on the base 340. Optionally, the base 340 and the operating platform 100 can be slidably coupled. The base 340 can be a flat plate structure, or other types of structures, which are not specifically limited in this embodiment. The supplementary lighting component 320 is rotatably connected to the base 340, and the output shaft of the translation drive 500 is connected to the base 340. The translation drive 500 can drive the detection component 300 to move relative to the operating platform 100 through the base 340, so that the detection component 300 moves closer to or further away from the support device 200. During the detection process, the distance between the detection component 300 and the support device 200 can be adjusted according to actual needs, thereby improving the clarity of the image acquired by the image acquisition component 310. Of course, the translation drive 500 can be omitted; the base 340 can also be omitted, and the image acquisition component 310, the fill light component 320 and the rotation drive component 330 can all be directly set on the operating platform 100.

[0040] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A detection device applied to battery cell detection, characterized in that, The device includes an operating platform (100), a support device (200), and a detection component (300). Both the support device (200) and the detection component (300) are mounted on the operating platform (100). The support device (200) is used to support the battery cell. The detection component (300) includes an image acquisition unit (310), a supplementary lighting unit (320), and a rotation drive unit (330). The image acquisition unit (310) is used to acquire image information of the battery cell on the support device (200). The output shaft of the rotation drive unit (330) is connected to the supplementary lighting unit (320). When the detection device is in the detection state, the rotation drive (330) can drive the supplementary light element (320) to rotate relative to the support device (200) so that the light-emitting surface (321) of the supplementary light element (320) faces the side surface of the battery cell.

2. The detection device of claim 1, wherein, The carrier device (200) includes a carrier platform (210) for carrying the battery cell. The detection device also includes a control component. The control component is electrically connected to the image acquisition component (310), the supplementary lighting component (320), and the rotation drive component (330). The control component can control the working state of the rotation drive component (330) according to the image information acquired by the image acquisition component (310) to adjust the relative position of the light-emitting surface (321) of the supplementary lighting component (320) and the side surface of the battery cell. The control component is used to determine whether the image information acquired by the image acquisition component (310) meets the preset image information.

3. The detection device of claim 2, wherein, The support device (200) further includes a transport mechanism (220) disposed on the operating platform (100). The support platform (210) is connected to the transport mechanism (220). The supplementary lighting component (320) is located on one side of the transport mechanism (220). The transport mechanism (220) is electrically connected to the control component. When the detection device is in the detection state, the control unit can control the transport mechanism (220) to move the carrier platform (210) relative to the operating platform (100) by a preset distance so that the first area of ​​the battery cell is opposite to the image acquisition unit (310).

4. The detection device of claim 3, wherein, The bearing surface of the support platform (210) is provided with a positioning groove (211), which is used to position the battery cell. The side wall of the positioning groove (211) is provided with a plurality of through holes (211a) arranged at intervals along the moving direction of the support platform (210). The light emitted from the light-emitting surface (321) passes through the through holes (211a) and irradiates the positioning groove (211). At least two of the plurality of through holes (211a) have different diameters; and / or, At least two of the plurality of through holes (211a) have different shapes.

5. The detection device of claim 2, wherein, The carrier device (200) further includes a rotating stage (230), which is connected to the carrier stage (210). The rotating stage (230) can drive the carrier stage (210) to rotate relative to the operating platform (100) so that different sides of the battery cell can be opposite to the image acquisition unit (310).

6. The detection device of claim 1, wherein, The number of the supplementary lighting elements (320) is at least two, including a first supplementary lighting element (322) and a second supplementary lighting element (323) arranged at intervals. The first supplementary lighting element (322) and the second supplementary lighting element (323) are located on opposite sides of the support device (200). The rotation drive element (330) and the image acquisition element (310) are both arranged in a one-to-one correspondence with the supplementary lighting elements (320).

7. The detection device of claim 1, wherein, The number of supplementary lighting elements (320) is at least two, including a third supplementary lighting element (324) and a fourth supplementary lighting element (325) arranged at intervals. The third supplementary lighting element (324) and the fourth supplementary lighting element (325) are both located on the same side of the supporting device (200). In the direction perpendicular to the supporting surface of the supporting device (200), the height of the third supplementary lighting element (324) is different from the height of the fourth supplementary lighting element (325). The number of the rotating drive components (330) is at least two, including a first rotating drive component and a second rotating drive component arranged at intervals. The output shaft of the first rotating drive component is connected to the third supplementary light component (324), and the output shaft of the second rotating drive component is connected to the fourth supplementary light component (325).

8. The detection device of claim 7, wherein, The third supplementary lighting element (324) is located on the side of the fourth supplementary lighting element (325) away from the support device (200). The detection device also includes a first bracket (410). The number of the third supplementary lighting elements (324) is at least two. The first rotary drive element and the third supplementary lighting element (324) are arranged in a one-to-one correspondence. The first end of each third supplementary lighting element (324) is connected to the output shaft of each first rotary drive element. The second end of each third supplementary lighting element (324) is rotatably connected to the first bracket (410). The third supplementary lighting elements (324) are arranged at intervals along a direction perpendicular to the support surface of the support device (200). There is a first clearance space between adjacent third supplementary lighting elements (324). The support device (200) includes a support platform (210) and a rotating platform (230). The support platform (210) is used to support the battery cell. The rotating platform (230) is connected to the support platform (210). The rotating platform (230) can drive the support platform (210) to rotate so that part of the support platform (210) is located in the first clearance space.

9. The detection device of claim 7, wherein, The fourth supplementary light element (325) is located on the side of the third supplementary light element (324) near the support device (200). The detection device also includes a second bracket (420). The number of the fourth supplementary light element (325) is at least two. The second rotation drive element is arranged in a one-to-one correspondence with the fourth supplementary light element (325). The first end of each fourth supplementary light element (325) is connected to the output shaft of each second rotation drive element. The second end of each fourth supplementary light element (325) is rotatably connected to the second bracket (420). Each fourth supplementary light element (325) is arranged at intervals along a direction perpendicular to the support surface of the support device (200). There is a second clearance space between adjacent fourth supplementary light elements (325). At least a part of the image acquisition element (310) can be located in the second clearance space.

10. The detection device of claim 1, wherein, The detection device further includes a translation drive (500) disposed on the operating platform (100), and the detection component (300) further includes a base (340) movably disposed on the operating platform (100). The image acquisition component (310), the supplementary light component (320), and the rotation drive (330) are all disposed on the base (340). The supplementary light component (320) is rotatably connected to the base (340). The output shaft of the translation drive (500) is connected to the base (340). The translation drive (500) can drive the detection component (300) to move relative to the operating platform (100) through the base (340) so that the detection component (300) moves closer to or away from the support device (200).

Images