Testing device, and testing method for battery cell testing

Abstract

A testing device (100), and a testing method for a battery cell (200). The testing device (100) comprises: a supporting mechanism (10), a rotating mechanism (20), a conveying mechanism (30), a moving mechanism (40) and a testing mechanism (23). The rotating mechanism (20) is arranged on the supporting mechanism (10), and the rotating mechanism (20) comprises a rotating support (21) and a rotating disk (22), wherein the rotating support (21) is arranged on the supporting mechanism (10), and the rotating disk (22) can circumferentially rotate relative to the rotating support (21); the conveying mechanism (30) is adapted to convey the battery cell (200) to a testing area, and the conveying mechanism (30) is arranged extending perpendicular to the axis of rotation of the testing mechanism (23); the moving mechanism (40) is arranged between the supporting mechanism (10) and the rotating mechanism (20), and the rotating mechanism (20) can move relative to the supporting mechanism (10) under the support of the moving mechanism (40); and the testing mechanism (23) is arranged on the rotating disk (22), and the testing mechanism (23) comprises a ray source (231) and a detector (232), wherein the ray source (231) and the detector (232) are adapted to test the battery cell (200) on the conveying mechanism (30), and the ray source (231) and the detector (232) are adapted to circumferentially rotate on the rotating disk (22).

Description

Detection device and detection method for battery cell detection

[0001] This application claims priority to Chinese patent application No. 202310693554.3, filed on June 12, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present disclosure relates to the field of nondestructive testing, and in particular to a testing device and a testing method for battery cell testing. Background Art

[0003] As demand for lithium batteries continues to expand, the market's requirements for lithium battery quality are becoming increasingly stringent, and the consistency requirements for lithium batteries, especially power batteries, are becoming increasingly stringent. In some related technologies, traditional industrial CT solutions use detectors and optical machines to scan battery cells in a static state. This requires high positional accuracy and angular deformation of the battery cells to be inspected. During the inspection process, objective factors such as cell position and angular deformation can affect the quality of inspection, making it difficult to improve and resulting in a high rate of false positives.

[0004] Summary of the Invention

[0005] The present disclosure provides a detection device.

[0006] The present disclosure also aims to provide a detection method for telecommunication detection, wherein the detection method uses the above-mentioned detection device to detect battery cells.

[0007] According to the detection device of the first embodiment of the present disclosure, the detection device includes: a support mechanism, a rotating mechanism, a transmission mechanism, a moving mechanism, and a detection mechanism. The rotating mechanism is arranged on the support mechanism, and the rotating mechanism includes: a rotating bracket and a rotating disk, the rotating bracket is arranged on the support mechanism, and the rotating disk can rotate circumferentially relative to the rotating bracket; the transmission mechanism is suitable for transmitting the battery cell to the detection area, and the transmission mechanism is extended perpendicular to the rotation axis of the detection mechanism; the moving mechanism is arranged between the support mechanism and the rotating mechanism, and the rotating mechanism can move relative to the support mechanism under the support of the moving mechanism; the detection mechanism is arranged on the rotating disk, and the detection mechanism includes: a ray source and a detector, the ray source and the detector are suitable for detecting the battery cell on the transmission mechanism, and the ray source and the detector are suitable for circumferential rotation on the rotating disk.

[0008] According to the detection device of the embodiment of the first aspect of the present disclosure, the rotating mechanism is provided on the supporting mechanism, and the detecting mechanism is provided on the rotating mechanism, the detecting mechanism can rotate circumferentially on the rotating mechanism, the conveying mechanism passes through the rotating disk, and the battery cells can pass through the rotating disk on the conveying mechanism, thereby realizing continuous detection of the battery cells. When the detecting mechanism detects the battery cells, the specifications of the battery cells may have certain differences depending on different products, and the detection positions of battery cells of different specifications are also different when they are detected. By providing a moving mechanism between the rotating mechanism and the supporting mechanism, the position of the rotating mechanism can be adjusted to adapt to the detection of battery cells of different specifications. When the detecting device is required to detect the battery cells, the conveying mechanism first conveys the battery cells to the detection area, and the radiation source and detector of the detecting mechanism rotate circumferentially on the rotating disk, and then detect the battery cells located in the detection area. It should be noted that the detection area is the area between the line connecting the radiation source and the detector, and the detecting mechanism can detect the battery cells in this area. The detection mechanism can perform multi-directional detection of the battery cells by rotating circumferentially on the rotating disk, thereby detecting the alignment of the pole pieces and the welding condition of the pole pieces of each battery cell, and does not require the placement position and placement angle of the battery cells on the conveying mechanism.

[0009] In some embodiments, the rotating mechanism can move along the first direction and the second direction under the support of the moving mechanism, the first direction is parallel to the rotation axis of the detection mechanism, and the second direction is perpendicular to the rotation axis of the detection mechanism.

[0010] Furthermore, a first slide rail is provided on a side of the support mechanism close to the moving mechanism, and a first slider is provided on a side of the moving mechanism close to the support mechanism. The first slide rail and the first slider are slidably engaged with each other so that the rotating mechanism can move in a first direction.

[0011] In some embodiments, a second slide rail is provided on the side of the moving mechanism close to the rotating mechanism, and a second slider is provided on the side of the rotating mechanism close to the moving mechanism. The second slide rail and the second slider are slidably engaged to enable the rotating mechanism to move in the second direction.

[0012] In some embodiments, the conveying mechanism further includes a plurality of positioning modules arranged at intervals, and the positioning modules are suitable for positioning the battery cells.

[0013] In some embodiments, the rotating mechanism further includes: a position sensor, which can detect the position of the battery cell on the transmission mechanism.

[0014] In some embodiments, the detection device further includes: a screening mechanism, wherein the screening mechanism is adapted to transfer the battery cell to a waste area when the detection mechanism detects that the battery cell is unqualified.

[0015] According to the detection method for battery cell detection in the second aspect embodiment of the present disclosure, the detection method is suitable for detecting battery cells through a detection device, and the detection method includes: placing the battery cells on a conveying mechanism; the conveying mechanism conveys the battery cells to a detection area; and the detection mechanism detects the battery cells.

[0016] In some embodiments, when placing the battery cell on the conveying mechanism, the battery cell is placed at a preset angle, wherein the preset angle is 15°-75°.

[0017] In some embodiments, before the detection mechanism detects the battery cell, it also includes: the rotating disk drives the radiation source and the detector to rotate a certain angle to avoid the battery cell; the conveying mechanism conveys the battery cell to the detection area; the rotating disk drives the radiation source and the detector to rotate circumferentially to detect the battery cell; the conveying mechanism conveys the battery cell out of the detection area.

[0018] Furthermore, the screening mechanism transfers the unqualified battery cells to a waste area.

[0019] Additional aspects and advantages of the present disclosure will be given in part in the description that follows and, in part, will be obvious from the description that follows, or will be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] FIG1 is a front view of a detection device according to an embodiment of the first aspect of the present disclosure.

[0022] FIG2 is a top cross-sectional view of the detection device according to the embodiment of the first aspect of the present disclosure.

[0023] FIG3 is a schematic diagram of a moving mechanism of a detection device according to an embodiment of the first aspect of the present disclosure.

[0024] Reference numerals:

[0025] Detection device 100,

[0026] Support mechanism 10,

[0027] Rotating mechanism 20, rotating bracket 21, rotating disk 22, detecting mechanism 23, ray source 231, detector 232, rotating connector 24, position sensor 25,

[0028] Conveying mechanism 30, positioning module 31, first positioning portion 311, second positioning portion 312,

[0029] Moving mechanism 40, first slide rail 41, first slider 42, second slide rail 43, second slider 44,

[0030] Screening Agency 50,

[0031] Battery cells 200. DETAILED DESCRIPTION

[0032] The following describes in detail embodiments of the present disclosure, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present disclosure and are not to be construed as limiting the present disclosure.

[0033] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure 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 cannot be understood as a limitation on the present disclosure. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present disclosure, unless otherwise specified, "multiple" means two or more.

[0034] In the description of this disclosure, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on the specific circumstances.

[0035] The following describes a detection device 100 and a detection method for detecting a battery cell 200 according to an embodiment of the present disclosure with reference to FIG. 1 to FIG. 3 .

[0036] As shown in FIG1-FIG2 , according to the detection device 100 of the embodiment of the first aspect of the present disclosure, the detection device 100 includes: a supporting mechanism 10 , a rotating mechanism 20 , a conveying mechanism 30 , a moving mechanism 40 and a detection mechanism 23 .

[0037] Among them, the rotating mechanism 20 is arranged on the supporting mechanism 10, and the rotating mechanism 20 includes: a rotating bracket 21 and a rotating disk 22, the rotating bracket 21 is arranged on the supporting mechanism 10, and the rotating disk 22 can rotate circumferentially relative to the rotating bracket 21; the conveying mechanism 30 is suitable for conveying the battery cell 200 to the detection area, and the conveying mechanism 30 is extended perpendicular to the rotation axis of the detection mechanism 23; the moving mechanism 40 is arranged between the supporting mechanism 10 and the rotating mechanism 20, and the rotating mechanism 20 can move relative to the supporting mechanism 10 under the support of the moving mechanism 40; the detection mechanism 23 is arranged on the rotating disk 22, and the detection mechanism 23 includes: a ray source 231 and a detector 232, the ray source 231 and the detector 232 are suitable for detecting the battery cell 200 on the conveying mechanism 30, and the ray source 231 and the detector 232 are suitable for circumferential rotation on the rotating disk 22.

[0038] Specifically, the rotating mechanism 20 is disposed on the supporting mechanism 10, and a detection mechanism 23 is provided on the rotating mechanism 20. The detection mechanism 23 can rotate circumferentially on the rotating mechanism 20. The conveying mechanism 30 passes through the rotating disk 22, and the battery cells 200 can pass through the rotating disk 22 on the conveying mechanism 30, thereby achieving continuous detection of the battery cells 200. When the detection mechanism 23 detects the battery cells 200, the specifications of the battery cells 200 may vary depending on different products. When detecting battery cells 200 of different specifications, the detection position of the detection cells 200 is also different. By providing a moving mechanism 40 between the rotating mechanism 20 and the supporting mechanism 10, the position of the rotating device can be adjusted to accommodate the detection of battery cells 200 of different specifications. When the detection device 100 is required to detect the battery cell 200, the conveying mechanism 30 first conveys the battery cell 200 to the detection area. The radiation source 231 and the detector 232 of the detection mechanism 23 rotate circumferentially on the rotating disk 22, and then detect the battery cell 200 located in the detection area. It should be noted that the detection area is the area between the line connecting the radiation source 231 and the detector 232, and the detection mechanism 23 can detect the battery cell 200 in this area. By rotating circumferentially on the rotating disk 22, the detection mechanism 23 can perform multi-directional detection on the battery cell 200, thereby detecting the alignment of the electrode pieces and the welding condition of the electrode pieces of each battery cell 200, and there is no requirement for the placement position and placement angle of the battery cell 200 on the conveying mechanism 30.

[0039] It is understandable that extending the transmission mechanism 30 perpendicular to the rotation axis of the detection mechanism 23 can reduce the difficulty of assembling the detection device 100. The extension direction of the transmission mechanism 30 is perpendicular to the rotation axis of the detection mechanism 23, that is, the transmission mechanism 30 is set on one side of the detection mechanism 23. When the detection device 100 is assembled, the position of the detection mechanism 23 is first fixed by the support mechanism 10, and then the transmission mechanism 30 is set on one side of the detection mechanism 23. The transmission direction of the transmission mechanism 30 is perpendicular to the rotation axis of the detection mechanism 23. When the transmission mechanism 30 transmits the battery cell 200, the battery cell 200 is always located on one side of the detection mechanism 23, without passing through the detection mechanism 23, which can improve the detection efficiency. The transmission mechanism 30 located on one side of the detection mechanism 23 is also easier to disassemble and repair.

[0040] According to the detection device 100 of the embodiment of the first aspect of the present disclosure, the detection device 100 can improve the detection quality and detection efficiency while reducing the placement requirements of the battery cells 200.

[0041] Optionally, the detection device 100 further includes a detection control system, which includes:

[0042] The transmission mechanism 30 is extended perpendicular to the rotation axis of the detection mechanism 23;

[0043] If the battery cell 200 collides with the rotating mechanism when entering the detection area, the rotating mechanism 20 controls the rotating disk to drive the radiation source 231 and the detector 232 to rotate a certain angle to avoid the battery cell 200;

[0044] If the battery cell 200 is about to collide with the rotating mechanism when entering the detection area, the ray source 231 and the detector 232 are switched from the detection position to the avoidance position to avoid the battery cell 200.

[0045] Furthermore, the rotating mechanism 20 further includes a rotating connector 24 , which is disposed between the rotating bracket 21 and the rotating disk 22 to reduce resistance between the rotating bracket 21 and the rotating disk 22 so that the rotating disk 22 can rotate freely.

[0046] It should be noted that there is no specific limitation on the structure of the rotating connector 24 . The rotating connector 24 may be a combination of a circular rail and a circular slider, or a bearing disposed between the rotating bracket 21 and the rotating disk 22 .

[0047] When the rotating connecting member 24 is a circular slide rail and a circular slider, the circular slide rail can be set on one of the rotating bracket 21 and the rotating disk 22, and the circular slider can be set on the other of the rotating bracket 21 and the rotating disk 22. The circular slide rail and the circular slider engage with each other, allowing the rotating disk 22 to rotate freely on the rotating bracket 21.

[0048] Optionally, the rotating mechanism 20 further comprises a drive motor, a drive gear, and a driven gear portion. The drive motor is fixed to the rotating bracket 21, the drive gear is disposed on the motor shaft of the drive motor, and the driven gear portion is disposed on the outer side of the rotating disk 22, with the drive gear and the driven gear portion meshing. Thus, the rotating disk 22 can rotate circumferentially under the drive of the drive motor, thereby improving the detection efficiency of the battery cells 200.

[0049] It should be noted that the driven gear portion can be a full circle of external teeth arranged on the outside of the rotating disk 22, or it can be a partial circle of external teeth arranged on the outside of the rotating disk 22. When the driven gear portion is a full circle of external teeth arranged on the outside of the rotating disk 22, the rotating disk 22 can continuously rotate in the circumferential direction under the drive of the drive motor. When the driven gear portion is a partial circle of external teeth arranged on the outside of the rotating disk 22, the rotating disk 22 can reciprocate at a certain angle under the drive of the drive motor. The choice can be made according to actual needs.

[0050] In some embodiments, the rotating mechanism 20 can move along a first direction and a second direction under the support of the moving mechanism 40 , wherein the first direction is parallel to the rotation axis of the detection mechanism 23 , and the second direction is perpendicular to the rotation axis of the detection mechanism 23 .

[0051] Specifically, by setting up a moving mechanism 40, the rotating mechanism 20 can be moved in the first direction and the second direction, thereby realizing the relative position adjustment with the transmission mechanism 30. When the battery cells 200 are detected, since the battery cells 200 have different specifications, the detection position of each specification of the battery cells 200 is different. The detection area of ​​the detection mechanism 23 can be adjusted through the moving mechanism 40 so that the corners of the battery cells 200 are within the detection area, thereby improving the detection accuracy. In addition, the detection mechanism 23 can also avoid the battery cells 200 when position interference occurs between the detection mechanism 23 and the battery cells 200, thereby improving the detection safety.

[0052] As shown in Figure 3, further, a first slide rail 41 is provided on the side of the support mechanism 10 close to the moving mechanism 40, and a first slider 42 is provided on the side of the moving mechanism 40 close to the support mechanism 10. The first slide rail 41 and the first slider 42 slide together to enable the rotating mechanism 20 to move in the first direction. A second slide rail 43 is provided on the side of the moving mechanism 40 close to the rotating mechanism 20, and a second slider 44 is provided on the side of the rotating mechanism 20 close to the moving mechanism 40. The second slide rail 43 and the second slider 44 slide together to enable the rotating mechanism 20 to move in the second direction. The cooperation between the first slide rail 41 and the first slider 42, and the cooperation between the second slide rail 43 and the second slider 44, can make the movement of the rotating mechanism 20 smoother, reducing the difficulty of operation.

[0053] In some embodiments, the conveying mechanism 30 extends parallel to the rotation axis of the detection mechanism 23 or the positioning mechanism extends perpendicular to the rotation axis of the detection mechanism 23 .

[0054] Specifically, when the conveying mechanism 30 is extended parallel to the rotation axis of the detection mechanism 23, the conveying mechanism 30 can pass through the center of the rotating mechanism 20. When the conveying mechanism 30 is extended perpendicular to the rotation axis of the detection mechanism 23, the conveying mechanism 30 can convey the battery cells 200 on one side of the detection mechanism 23. The battery cells 200 can perform stepping motion driven by the conveying mechanism 30. A plurality of battery cells 200 to be tested are placed at intervals on the conveying mechanism 30. When the conveying mechanism 30 conveys the battery cells 200 to the detection area, the conveying mechanism 30 stops, and the detection mechanism 23 rotates driven by the rotating disk 22, and then detects the battery cells 200. After the detection is completed, the conveying mechanism 30 moves the battery cells 200 out of the detection area. At this time, the next group of battery cells 200 to be tested can move to the detection area for detection.

[0055] Thus, the battery cells 200 can be continuously tested, thereby improving the testing efficiency of the battery cells 200 .

[0056] Furthermore, the conveyor mechanism 30 includes a plurality of positioning modules 31 spaced apart from each other, which are adapted to position the battery cells 200. When the battery cells 200 are placed on the conveyor mechanism 30, the positioning modules 31 can be used to position the battery cells 200 so that the measured corners of each battery cell 200 are in the appropriate position. When the conveyor mechanism 30 moves the battery cells 200 to the inspection area, the inspected corners of each battery cell 200 are ensured to be in the same position, thereby improving inspection accuracy.

[0057] Optionally, the positioning module 31 includes a first positioning portion 311 and a second positioning portion 312, the first positioning portion 311 and the second positioning portion 312 are perpendicular to each other, and the first positioning portion 311 and the second positioning portion 312 are both fixed on the conveying mechanism 30, and a positioning space is formed inside the angle formed by the first positioning portion 311 and the second positioning portion 312, and the corners of the battery cell 200 to be tested can be placed in the positioning space, and the adjacent two sides of the battery cell 200 are respectively stopped against the first positioning portion 311 and the second positioning portion 312.

[0058] Specifically, when the battery cell 200 needs to be inspected, the battery cell 200 is placed on the conveying mechanism 30, and one corner of the battery cell 200 is placed in the positioning space, and the two adjacent sides of the corner are respectively stopped against the first positioning part 311 and the second positioning part 312. At this time, the battery cell 200 can be fixed on the conveying mechanism 30. By placing the battery cells 200 in sequence in this way, the regular placement of the battery cells 200 can be ensured.

[0059] Therefore, when the detection mechanism 23 is used to detect the corners of the battery cell 200 later, the detection can be performed without adjusting the position of the battery cell 200, thereby improving the detection efficiency while ensuring the detection accuracy.

[0060] It should be noted that there is no specific restriction on the connection method between the positioning module 31 and the transmission mechanism 30. For example, the positioning module 31 can be connected to the transmission mechanism 30 by bonding, screwing or snapping, which can be selected according to actual needs.

[0061] Further optionally, the first positioning portion 311 and the second positioning portion 312 can be grooves or protrusions formed on the conveying mechanism 30. When the battery cell 200 is placed on the conveying mechanism 30, the corners of the battery cell 200 can be placed into the grooves or protrusions, so that the position of the battery cell 200 can be fixed.

[0062] Optionally, when the positioning module 31 is fixed to the conveying mechanism 30 , it has a preset angle, wherein the preset angle is 0°-75°.

[0063] Exemplarily, the preset angle can be 0°, 5°, 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, or 75°, and can be set according to actual needs.

[0064] It should be noted that there is no specific restriction on the number and setting position of the positioning modules 31 on the conveying mechanism 30. For example, the positioning modules 31 can be set on the center line of the conveying mechanism 30 and set at intervals. The positioning modules 31 can also be set side by side on both sides of the center line of the conveying mechanism 30. The selection can be made according to actual needs.

[0065] It is understandable that, depending on the different configurations of the positioning module 31 , the placement of the battery cells 200 on the conveying mechanism 30 will also be different.

[0066] When the positioning module 31 is set on the center line of the conveying mechanism 30 and is arranged at equal intervals, in order to ensure the detection quality of the battery cells 200 by the detection mechanism 23, the positioning module 31 can be set to a preset angle so that the detection mechanism 23 can detect the corners of the battery cells 200. The battery cells 200 can be placed in the positioning space by placing the corners and respectively abutting the adjacent two sides of the corners against the first positioning portion 311 and the second positioning portion 312. At this time, multiple battery cells 200 can be placed at equal intervals on the conveying mechanism 30. As shown in Figure 2, if the preset angle of the positioning module 31 is set to 45° for example, the battery cells 200 are also tilted at 45° on the conveying mechanism 30. When the conveying mechanism 30 conveys the battery cells 200 to the detection area, the detection mechanism 23 can perform circumferential detection on the corners of the battery cells 200, thereby improving the detection accuracy.

[0067] When the positioning module 31 is arranged side by side on both sides of the center line of the conveying mechanism 30, the positioning module 31 can set the preset angle to 0° and place it diagonally, so that the two battery cells 200 can be fixed at the same time. When a rotating table is provided in the detection device 100, the rotating mechanism 20 can be set to a certain angle through the rotating table so that the detection mechanism 23 forms a certain angle with the center of the conveying mechanism 30. At this time, two battery cells 200 are arranged on the conveying mechanism 30. Under the constraint of the positioning module 31, the two battery cells 200 are diagonally arranged on both sides of the center line of the conveying mechanism 30 for connection at the end. The detection mechanism 23 can detect the corners of the two battery cells 200 at the same time, thereby improving the detection efficiency.

[0068] In some embodiments, the rotating mechanism 20 further includes a position sensor 25, which can detect the position of the battery cell 200 on the conveying mechanism 30. The position sensor 25 can detect the position of the battery cell 200 on the conveying mechanism 30. The position sensor 25 is connected to the rotating mechanism 20 signal. Before the conveying mechanism 30 conveys the battery cell 200 into the detection area, the position sensor 25 performs detection. When the position sensor 25 detects that the position of the battery cell 200 is about to interfere with the detection mechanism 23, it sends an avoidance signal to the rotating mechanism 20, and the rotating disk 22 drives the radiation source 231 and the detector 232 to stop circumferential rotation and avoid the battery cell 200. When the position sensor 25 detects that the position of the battery cell 200 will not interfere with the detection mechanism 23 or the battery cell 200 is not detected, the rotating disk 22 drives the radiation source 231 and the detector 232 to continue circumferential rotation.

[0069] Therefore, the battery cell 200 can be prevented from colliding with the detection mechanism 23 during the detection of the battery cell 200, thereby improving the detection safety.

[0070] It should be noted that there is no specific limitation on the type of the position sensor 25. For example, the position sensor 25 may be an optical position sensor 25, an ultrasonic position sensor 25, a light curtain sensor, or a camera.

[0071] When the position sensor 25 is an optical position sensor 25, a light beam is emitted through the transmitter. If the battery cell 200 located on the transmission mechanism 30 interferes with the rotating mechanism 20, the light beam emitted by the transmitter will be reflected back to the optical position sensor 25 when it touches the battery cell 200. At this time, the sensor can calculate the distance between the rotating mechanism 20 and the battery cell 200. When the distance between the two is less than the set threshold, the optical position sensor 25 sends an avoidance signal to the rotating mechanism 20, and the rotating disk 22 drives the radiation source 231 and the detector 232 to stop circumferential rotation and avoid the battery cell 200. When the optical position sensor 25 does not receive the reflected signal, or after receiving the signal, through calculation, when the distance between the battery cell 200 and the rotating mechanism 20 is greater than or equal to the set threshold, the rotating disk 22 drives the radiation source 231 and the detector 232 to continue circumferential rotation.

[0072] When the position sensor 25 is a light curtain sensor, the light curtain sensor can be set upstream of the rotating mechanism 20 and near the conveying mechanism 30. When the light curtain sensor detects that the light curtain is blocked, the light curtain sensor sends an avoidance signal to the rotating mechanism 20, and the rotation drives the radiation source 231 and the detector 232 to stop circumferential rotation and avoid the battery cell 200. When the light curtain sensor detects that the light curtain is not blocked, the rotating disk 22 drives the radiation source 231 and the detector 232 to continue circumferential rotation.

[0073] When the position sensor 25 is a camera, the camera can be set on the rotating bracket 21, and the camera can photograph the battery cell 200 located on the conveying mechanism 30. By identifying the position of the battery cell 200 in the image, it can be determined when the battery cell 200 interferes with the rotating mechanism 20. When it is calculated from the image taken by the camera that the battery cell 200 will collide with the rotating mechanism 20, the camera sends an avoidance signal to the rotating mechanism 20, and the rotating disk 22 drives the radiation source 231 and the detector 232 to stop circumferential rotation and avoid the battery cell 200. When the battery cell 200 does not appear in the image taken by the camera or it is calculated from the image taken by the camera that the battery cell 200 will not collide with the rotating mechanism 20, the camera sends a signal to the rotating disk 22 mechanism, and the rotating disk 22 drives the radiation source 231 and the detector 232 to continue circumferential rotation.

[0074] It should be noted that there is no specific restriction on the position of the position sensor 25 on the detection device 100. As long as the position sensor 25 can detect whether the battery cell 200 collides with the rotating mechanism 20, it can be set as needed.

[0075] In some embodiments, the detection device 100 further includes: a screening mechanism 50 , wherein the screening mechanism 50 is adapted to transfer the battery cell 200 to a waste area when the detection mechanism 23 detects that the battery cell 200 is unqualified.

[0076] Specifically, the screening mechanism 50 is adapted to transfer unqualified cells 200 to a scrap area when the inspection mechanism 23 detects that the cells 200 are unqualified. After the inspection mechanism 23 completes the inspection of the cells 200, if the internal defects of the cells 200 do not meet the requirements, the screening mechanism 50 can screen out the unqualified cells 200 on the conveyor mechanism 30 and transfer them to the scrap area, allowing qualified cells 200 to proceed to the next process step. This improves the inspection efficiency of the inspection device 100.

[0077] It can be understood that the detection system corresponding to the detection device 100 in the present disclosure can number the battery cells 200 detected by the detection device 100 one by one. When the screening mechanism 50 transfers the unqualified battery cells 200 to the waste area, the detection system will also eliminate the numbers and images corresponding to the unqualified battery cells 200.

[0078] That is, the battery cell 200 is first inspected by the inspection mechanism 23 while being transported by the transport mechanism 30. If the inspection mechanism 23 detects that the battery cell 200 is unqualified, the screening mechanism 50 transfers the battery cell 200 to the waste area. At the same time, within the inspection system, the numbers and images corresponding to the unqualified battery cells 200 are eliminated. When the battery cell 200 passes the inspection of the inspection mechanism 23 and is judged to be qualified, the qualified battery cell 200 can enter the next process. This can reduce the system resource usage, thereby making the inspection device 100 have higher inspection efficiency.

[0079] According to the detection method for detecting the battery cell 200 according to the embodiment of the second aspect of the present disclosure, the detection method is applicable to the detection device 100 of any one of the above embodiments, and the detection method includes: placing the battery cell 200 on the conveying mechanism 30; the conveying mechanism 30 conveys the battery cell 200; and the detection mechanism 23 detects the battery cell 200.

[0080] In some embodiments, when the battery cell 200 is placed on the conveying mechanism 30 , the battery cell 200 is placed at a preset angle, wherein the preset angle is 15°-75°.

[0081] Specifically, by placing the battery cell 200 at a preset angle, the center line of the battery cell 200 can have a certain angle with the extension direction of the conveying mechanism 30, that is, the battery cell 200 is placed on the conveying mechanism 30 at an angle, so that when the conveying mechanism 30 moves the battery cell 200 to the detection area, the corners of the battery cell 200 can be within the detection area.

[0082] In this way, the detection efficiency of the detection device 100100 can be improved while improving the detection effect.

[0083] Exemplarily, the preset angle can be 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, or 75°, and can be set according to actual needs.

[0084] As shown in FIG2 , a method for detecting a battery cell 200 is described below according to a specific embodiment of the present disclosure.

[0085] Place the battery cell 200 on the conveying mechanism 30 and position the battery cell 200 at a preset angle;

[0086] The rotating disk 22 drives the radiation source 231 and the detector 232 to rotate circumferentially. At this time, the transmission mechanism 30 is extended perpendicular to the rotation axis of the detection mechanism 23 to transmit the battery cells 200.

[0087] The position sensor 25 detects the position of the battery cell 200 and sends an avoidance signal to the rotating mechanism 20 if it detects that the battery cell 200 will collide with the rotating mechanism 20 when entering the detection area;

[0088] The rotating mechanism 20 receives the avoidance signal from the position sensor 25 and controls the rotating disk to drive the radiation source 231 and the detector 232 to rotate a certain angle to avoid the battery cell 200;

[0089] The conveying mechanism 30 conveys the battery cell 200 to the inspection area;

[0090] The position sensor 25 detects the position of the battery cell 200 and sends a signal to the rotating mechanism 20 if no battery cell 200 is detected or if the position of the battery cell 200 is detected to be unlikely to collide with the rotating mechanism 20 ;

[0091] After receiving the signal from the position sensor 25, the rotating mechanism 20 controls the rotating disk 22 to drive the radiation source 231 and the detector 232 to rotate in a circumferential direction to detect the battery cell 200;

[0092] After the scan is completed, the position sensor 25 detects the position of the battery cell 200. If it is detected that the battery cell 200 will collide with the rotating mechanism 20 during the output process, an avoidance signal is sent to the rotating mechanism 20.

[0093] The rotating mechanism 20 receives the avoidance signal from the position sensor 25 and controls the rotating disk to drive the radiation source 231 and the detector 232 to rotate a certain angle to avoid the battery cell 200;

[0094] The conveying mechanism 30 conveys the battery cell 200 out of the detection area;

[0095] The screening mechanism 50 transfers the unqualified battery cells 200 to a waste area.

[0096] Throughout this specification, references to terms such as "embodiment" and "example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0097] Although the embodiments of the present disclosure have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit of the present disclosure, the scope of which is defined by the claims and their equivalents.

Claims

1. A detection device, wherein: include: Support mechanism (10); A rotating mechanism (20), the rotating mechanism (20) being arranged on the supporting mechanism (10), the rotating mechanism (20) comprising: a rotating bracket (21) and a rotating disk (22), the rotating bracket (21) being arranged on the supporting mechanism (10), and the rotating disk (22) being capable of circumferential rotation relative to the rotating bracket (21); A conveying mechanism (30), the conveying mechanism (30) being suitable for conveying the battery cell (200) to the detection area, and the conveying mechanism (30) being arranged to extend perpendicularly to the rotation axis of the detection mechanism (23); A moving mechanism (40), wherein the moving mechanism (40) is arranged between the supporting mechanism (10) and the rotating mechanism (20), and the rotating mechanism (20) can move relative to the supporting mechanism (10) under the support of the moving mechanism (40); A detection mechanism (23), the detection mechanism (23) being arranged on the rotating disk (22), the detection mechanism (23) comprising: a ray source (231) and a detector (232), the ray source (231) and the detector (232) being suitable for detecting the battery core (200) on the conveying mechanism (30), and the ray source (231) and the detector (232) being suitable for circumferential rotation on the rotating disk (22).

2. The detection device according to claim 1, wherein: The rotating mechanism (20) can move along the first direction and the second direction under the support of the moving mechanism (40), the first direction is parallel to the rotation axis of the detection mechanism (23), and the second direction is perpendicular to the rotation axis of the detection mechanism (23).

3. The detection device according to claim 2, wherein: A first slide rail (41) is provided on one side of the support mechanism (10) close to the moving mechanism (40), and a first slider (42) is provided on one side of the moving mechanism (40) close to the support mechanism (10). The first slide rail (41) and the first slider (42) are slidably matched to enable the rotating mechanism (20) to move in a first direction.

4. The detection device according to claim 2, wherein: A second slide rail (43) is provided on one side of the moving mechanism (40) close to the rotating mechanism (20), and a second slider (44) is provided on one side of the rotating mechanism (20) close to the moving mechanism (40). The second slide rail (43) and the second slider (44) are slidably matched to enable the rotating mechanism (20) to move in a second direction.

5. The detection device according to claim 1, wherein: The conveying mechanism (30) further comprises a plurality of positioning modules (31) arranged at intervals, wherein the positioning modules (31) are suitable for positioning the battery core (200).

6. The detection device according to claim 1, wherein: The rotating mechanism (20) further comprises: a position sensor (25), wherein the position sensor (25) can detect the position of the battery core (200) on the transmission mechanism (30).

7. The detection device according to claim 1, wherein: Also includes: A screening mechanism (50) is provided, wherein the screening mechanism (50) is suitable for transferring the battery cell (200) to a waste area when the detection mechanism (23) detects that the battery cell (200) is unqualified.

8. A detection method for battery cell detection, wherein: The detection device according to any one of claims 1 to 7, wherein the detection method comprises: Placing the battery cell (200) on a conveying mechanism (30); The conveying mechanism (30) conveys the battery cell (200) to the detection area; The detection mechanism (23) detects the battery cell (200).

9. The detection method according to claim 8, wherein: When the battery cell (200) is placed on the conveying mechanism (30), the battery cell (200) is placed at a preset angle, wherein the preset angle is 15°-75°.

10. The detection method according to claim 9, wherein: Before the detection mechanism (23) detects the battery cell (200), the detection mechanism (23) further comprises: The rotating disk (22) drives the radiation source (231) and the detector (232) to rotate at a certain angle so as to avoid the battery core (200); The conveying mechanism (30) conveys the battery cell (200) to a detection area; The rotating disk (22) drives the radiation source (231) and the detector (232) to rotate in a circumferential direction to detect the battery core (200); The conveying mechanism (30) conveys the battery cell (200) out of the detection area.

11. The detection method according to claim 10, wherein: The screening mechanism (50) transfers the unqualified battery cells (200) to a waste area.

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