Battery cell detection system and detection method thereof

Abstract

This effectively improves the detection efficiency and accuracy of the battery cell detection system. [Solution] A battery cell detection system comprising a loading device 10 arranged in order along the transport direction, a first detection device 20, a second detection device 30, a sorting device 40, and a loading / unloading device 50, wherein the loading device 50 is used to transfer a tray loaded with battery cells 600 to the first detection device 20, the first detection device 20 is used to detect the battery cells 600 and generate a first detection sub-result, the second detection device 30 is used to detect the battery cells 600 and generate a second detection sub-result, the sorting device 40 is used to sort abnormal battery cells 600 to a first target area, and the loading / unloading device 50 is used to transfer normal battery cells 600 to a second target area.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and particularly to a battery cell detection system and a detection method thereof.

Background Art

[0002] A battery cell is an important component inside a battery, and the quality of the battery is greatly influenced by the quality of the battery cell. Therefore, it is necessary to detect the quality of the battery cell before it is assembled.

[0003] In related technologies, human intervention is required in multiple links of the battery cell detection system. For example, all links such as loading and unloading the battery cell and sorting out unqualified battery cells require manual operations. Due to the uncontrollability of manual operations, the placement position, feeding angle, etc. of the battery cell may affect the detection result, and the accuracy and stability of the detection result may not be reliable. In addition, since manual operations are required in multiple links, the detection efficiency is low.

Summary of the Invention

Means for Solving the Problems

[0004] In view of the above circumstances, embodiments of the present invention provide a battery cell detection system and a detection method thereof for solving the problems of reduced detection efficiency and poor detection accuracy in the conventional detection system.

[0005] In a first aspect, embodiments of the present invention are a battery cell detection system, comprising a loading device, a first detection device, a second detection device, a sorting device, and a loading and unloading device, which are sequentially provided along the conveying direction, where the loading device is used to transfer a tray carrying battery cells to the first inlet end of the first detection device, the first detection device is used to detect the battery cells and generate a first detection sub-result The second detection device is used to detect the battery cell and generate a second detection sub-result. The sorting device is used to sort abnormal battery cells to a first target area based on the first detection sub-result and the second detection sub-result. The loading / unloading device provides a battery cell detection system used to move detected normal battery cells to a second target area.

[0006] According to embodiments of the present invention, The system further includes a posture adjustment device provided at the first inlet end of the first detection device or the second inlet end of the second detection device. The orientation adjustment device is used to adjust the tray to a preset orientation such that the target detection position of the battery cell and the detection end of the first detection device are relative to each other, or the target detection position of the battery cell and the detection end of the second detection device are relative to each other.

[0007] According to embodiments of the present invention, A first rotary conveying line is provided between the first exit end of the first detection device and the second inlet end of the second detection device, A first transfer device provided at the first exit end for transferring the tray at the first exit end to the first end of the first rotary transfer line, The system further includes a second transfer device provided at the second end of the first rotary transfer line for transferring the tray to the second inlet end.

[0008] According to embodiments of the present invention, It further comprises a third transfer device and a second rotary transfer line, The sorting device is provided in the transport direction of the sorting transport line, The sorting and conveying line has a third end close to the second detection device and a fourth end away from the second detection device. The second rotary conveying line is provided between the fourth end and the first inlet end, and its conveying direction is parallel to the conveying direction of the first rotary conveying line. The third transfer device is provided at the fourth end and is used to transfer the tray at the fourth end to the second rotary transfer line. The second rotary conveying line is used to convey trays containing normal battery cells, empty trays, and trays containing battery cells to be detected.

[0009] According to embodiments of the present invention, The system further includes a loading transport line provided on one side of the second rotary transport line for transporting battery cells to be detected, The loading device is used to place the battery cells to be detected in the loading conveying line onto the empty trays in the second rotary conveying line. The second rotary conveying line is used to transport the tray containing the battery cells to be detected to the first entrance end.

[0010] According to embodiments of the present invention, The system further includes a loading / unloading transport line provided on one side of the second rotary transport line for transporting the detected normal battery cells, The loading and unloading device is used to separate the normal battery cells that have been transported to the second rotary transport line by the sorting transport line from the tray and to place the normal battery cells on the loading and unloading transport line.

[0011] In a second aspect, the embodiment of the present invention is as follows: A detection method for a battery cell detection system, Based on the load signal, the battery cells to be detected are transferred to the first detection device, Based on the first detection signal, the first detection device detects the battery cell to obtain a first detection sub-result, The battery cell to be detected is transferred to the second detection device, Based on the second detection signal, the second detection device detects the battery cell to obtain a second detection sub-result, Based on the first detection sub-result and the second detection sub-result, the battery cell is identified as either an abnormal battery cell or a normal battery cell. The system includes selecting the abnormal battery cells to move to a first target area and moving the normal battery cells to a second target area. This invention provides a detection method for a battery cell detection system.

[0012] According to embodiments of the present invention, Before the battery cell is detected by the first detection device, The method further includes adjusting the tray on which the battery cell is mounted to a preset orientation such that the target detection position of the battery cell and the detection end of the first detection device are relative to each other, based on the orientation adjustment signal, or Before the battery cell is detected by the second detection device described above, The method further includes adjusting the tray on which the battery cells are mounted to a preset orientation such that the target detection position of the battery cells and the detection end of the second detection device are relative to each other, based on the orientation adjustment signal.

[0013] According to embodiments of the present invention, The above-mentioned transfer of the battery cells to be detected to the first detection device is, The battery cell to be detected is transported along the loading transport line to a position corresponding to the loading device, Based on the loading signal, the battery cell is placed on an empty tray in the second rotary conveyor line, This includes transporting the tray on which the battery cells are mounted to the first inlet end of the first detection device by the second rotary transport line.

[0014] According to an embodiment of the present invention, Transferring the battery cell to be detected to a second detection device includes: Adjusting the tray from a preset attitude to a target attitude based on a first transfer signal; Transferring the tray adjusted to the target attitude to a first rotary transfer line; Transferring the tray on the first rotary transfer line to a second inlet end of the second detection device based on a second transfer signal.

[0015] According to an embodiment of the present invention, Sorting the abnormal battery cell to a first target area and transferring the normal battery cell to a second target area includes: Identifying the battery cell as an abnormal battery cell and sorting the abnormal battery cell to the first target area by a sorting device based on a sorting signal, or identifying the battery cell as a normal battery cell and transferring the normal battery cell to a second rotary transfer line based on a third transfer signal; Transferring the normal battery cell to the second target area by a loading / unloading device based on a loading / unloading signal.

[0016] According to the battery cell detection system and its detection method provided by an embodiment of the present invention, at least along the conveying direction of the conveying line, a loading device, a first detection device, a second detection device, a sorting device, and a loading / unloading device are provided in this order. Through the cooperation of each device, the automated operation of the entire detection operation of loading, detection, sorting, and loading / unloading can be realized. By comprehensively detecting the battery cell by the first detection device and the second detection device, the technical effect of effectively improving the detection efficiency and detection accuracy of the battery cell detection system is achieved.

[0017] By describing the embodiments of the present invention with reference to the following drawings, the above-mentioned and other objects, features, and advantages of the present invention will become apparent. [Brief explanation of the drawing]

[0018] [Figure 1] Figure 1 schematically shows the configuration of a battery cell detection system according to an embodiment of the present invention. [Figure 2] Figure 2 schematically shows a schematic diagram in which the second detection device and the first detection device according to an embodiment of the present invention are arranged side by side. [Figure 3] Figure 3 schematically shows a flowchart of the detection method of the battery cell detection system according to an embodiment of the present invention. [Modes for carrying out the invention]

[0019] To further clarify the purpose, technical proposal and advantages of the embodiments disclosed herein, the present invention will be described in more detail below with reference to the drawings, in combination with specific embodiments. Of course, the embodiments described are not all embodiments, but only a selection of embodiments of the present invention. All other embodiments that a person skilled in the art could conceive based on the embodiments of the present invention without requiring work worthy of inventive step are all within the scope of the present invention.

[0020] The terms used herein are for the purpose of describing specific embodiments and are not intended to limit the invention. The terms “equipped with” and “include” as used herein indicate the presence of the features, steps, operations and / or components described above, but do not preclude the presence or addition of one or more other features, steps, operations and / or components.

[0021] In the description of this invention, unless otherwise explicitly stated and limited, the terms “implemented,” “connected,” and “connected” should be understood in a broad sense, including, for example, fixed connections, removable connections, integral connections, mechanical connections, electrical connections, direct connections, indirect connections via an intermediate medium, and internal communication between two components. Those skilled in the art will be able to understand the specific meaning of these terms in this invention on a case-by-case basis.

[0022] The battery cell detection system according to an embodiment of the present invention will be described below with reference to Figures 1 and 2.

[0023] As shown in Figure 1, the battery cell detection system provided in an embodiment of the present invention comprises a loading device 10, a first detection device 20, a second detection device 30, a sorting device 40, and a loading / unloading device 50, which are arranged in order along the transport direction.

[0024] The loading device 10 is used to move the tray loaded with battery cells 600 to the first inlet end of the first detection device 20, the first detection device 20 is used to detect the battery cells 600 and generate a first detection sub-result, the second detection device 30 is used to detect the battery cells 600 and generate a second detection sub-result, the sorting device 40 is used to sort abnormal battery cells 600 to a first target area based on the first and second detection sub-results, and the loading / unloading device 50 is used to move the detected normal battery cells 600 to a second target area.

[0025] Specifically, the battery cell detection system comprises a transport line and a loading device 10, a first detection device 20, a second detection device 30, a sorting device 40, and a loading / unloading device 50, which are arranged in order along the transport direction of the transport line.

[0026] The loading device 10 is installed at the loading station and can transport the battery cells 600 to be detected by the transfer device to the loading station. Alternatively, a loading transport line 400 may be installed, and the battery cells 600 to be detected may move to the loading station along with the loading transport line 400. A tray transport line for transporting empty trays is provided on one side of the loading transport line 400.

[0027] For example, when the battery cell 600 to be detected moves to the loading station along the loading conveyor line 400, the loading device 10 becomes capable of performing linear motion in the horizontal and vertical directions. The loading device 10 comprises a first drive unit and a first clamping unit. The first clamping unit comprises two clamping claws that can be separated from or brought closer to each other. The first drive unit drives the two clamping claws to clamp the battery cell 600 in the loading conveyor line 400, placing the battery cell 600 on an empty tray in the tray conveyor line, and the tray presses against the battery cell 600 so that the battery cell 600 is fixed to the tray.

[0028] The operator may apply an external force to the tray so that the tray presses against the battery cells 600, and the loading device 10 may also apply an external force to the tray so that the tray presses against the battery cells 600. As a result, the tray loaded with the battery cells 600 is further transported along the tray transport line to the first inlet end of the first detection device 20.

[0029] The entire process, from grasping the battery cells 600 from the loading and conveying line 400 to placing the battery cells 600 on trays in the tray conveying line, is operated by the loading device 10, eliminating the need for operator involvement.

[0030] The first detection device 20 comprises a first transport line 21 and a first detection channel. The first transport line 21 has opposing first inlet and first outlet ends. A tray carrying the battery cells 600 is moved to the first inlet end and, as the first transport line 21 moves, is placed into the first detection channel. A first detection mechanism is provided within the first detection channel. The first detection mechanism comprises a first transmitting means and a first receiving means located on opposite sides of the battery cells 600. The first transmitting means and the first receiving means synchronously perform a 360-degree rotational movement to helically scan the battery cells 600. The first detection device 20 may be a CT detection device, the first transmitting means may be a CT optical device, and the first receiving means may be a CT detector.

[0031] The first detection device 20 is a CT detection device, which collects a first scan image of the battery cell 600 and obtains a first detection sub-result based on the first scan image. The first detection device 20 can detect various types of defects in the battery cell 600, such as whether the pole pieces in the battery cell 600 are aligned, whether the pole pieces are bent or chipped, and whether there are welding defects on the pole pieces. The first detection device 20 mainly detects the alignment of the pole pieces of the battery cell 600.

[0032] After the battery cell 600 completes detection within the first detection channel, it moves to the first exit end along with the movement of the first transport line 21, and the battery cell 600 is then transported to the second detection device 30 for a second detection.

[0033] The second detection device 30 comprises a second transport line 31 and a second detection channel, the second transport line 31 comprising a second inlet end and a second outlet end facing each other. A second detection mechanism is provided within the second detection channel, the second detection mechanism includes a second transmitting means and a second receiving means, the second transmitting means and the second receiving means are located on opposite sides of the battery cell 600, for example, along the vertical direction, with the second transmitting means positioned above the battery cell 600 and the second receiving means positioned below the battery cell 600 to scan the battery cell 600. The second detection device 30 may be a DR detection device, the second transmitting means may be a DR optical device, and the second receiving means may be a DR detector.

[0034] Selectively, as shown in Figure 2, the second detection device 30 is positioned alongside the first detection device 20, and when positioned side by side, the second inlet end of the second detection device 30 and the first outlet end of the first detection device 20 face each other.

[0035] Selectively, as shown in Figure 1, the second detection device 30 and the first detection device 20 are arranged parallel to each other with a gap between them, and a first rotary conveying line 100 is provided between the second detection device 30 and the first detection device 20. The first rotary conveying line 100 has opposing first and second ends, with the first end facing the first exit end of the first detection device 20, and the second end facing the second inlet end of the second detection device 30. A tray located at the first exit end moves to the second inlet end via the first rotary conveying line 100.

[0036] Since the second detection device 30 is a DR detection device, it collects a second scanning image of the battery cell 600 and obtains a second detection sub-result based on the second scanning image. The second detection device 30 can detect impurities and internal defects in the battery cell 600, for example, whether there are impurities or foreign matter in the battery cell 600, or whether there are wrinkles, folds or damage to the electrode pieces of the battery cell 600. The second detection device 30 mainly detects the extent of internal defects in the battery cell 600.

[0037] It is understood that the positions of the first detection device 20 and the second detection device 30 are interchangeable. That is, the battery cell 600 may be detected first by the CT detection device and then by the DR detection device, or the battery cell 600 may be detected first by the DR detection device and then by the CT detection device.

[0038] The first detection device 20 detects the battery cell 600, generates a first scan image, and obtains a first detection sub-result based on the first scan image. The second detection device 30 detects the battery cell 600, generates a second scan image, and obtains a second detection sub-result based on the second scan image. Based on the first and second detection sub-results, it is determined whether the battery cell 600 is an abnormal battery cell or a normal battery cell.

[0039] After being detected by the first detection device 20 and the second detection device 30, the battery cells 600 are transported to the sorting device 40, which then performs sorting on the battery cells 600 based on the determination results.

[0040] When battery cell 600 is identified as an abnormal battery cell, the sorting device 40 sorts the abnormal battery cell to a first target area. The first target area may be a defective product collection warehouse, and the sorting device 40 grasps the abnormal battery cell on the conveyor line and places the abnormal battery cell into the defective product collection warehouse.

[0041] Furthermore, since the abnormal battery cells are placed in the defective product collection warehouse along with the trays, the sorting device 40 replenishes the conveyor line with one empty tray.

[0042] Once battery cell 600 is identified as a normal battery cell, the normal battery cell is further transported to the loading / unloading station, where the loading / unloading device 50 is located. The loading / unloading device 50 and the loading device 10 are similar in configuration, and the loading / unloading device 50 is capable of linear motion along the horizontal and vertical directions. The loading / unloading device 50 includes a second drive unit and a second clamping unit, the second clamping unit having two clamping claws that can move apart or closer to each other.

[0043] The loading / unloading device 50 can unlock the tray to release the normal battery cells, and the second drive unit drives two clamping claws to clamp the separated normal battery cells, placing the normal battery cells in a second target area. The second target area may be a loading / unloading transport line 500, and the normal battery cells are transported along with the loading / unloading transport line 500 to the next station to perform the next process.

[0044] The manipulators of the loading device 10 and the loading / unloading device 50 may be truss manipulators or multi-axis manipulators.

[0045] The following describes the detection process of the battery cell detection system. When the battery cells 600 to be detected are moved to the loading station, the loading device 10 places the battery cells 600 on a tray, and after the tray presses against the battery cells 600, the tray with the battery cells 600 is transported to the first detection device 20. The first detection device 20 detects the battery cells 600 and generates a first scan image, and obtains a first detection sub-result based on the first scan image. The battery cells 600 detected by the first detection device 20 are transported to the second detection device 30, where the second detection device 30 detects the battery cells 600 and generates a second scan image, and obtains a second detection sub-result based on the second scan image. Subsequently, the battery cells 600 are transported to the sorting device 40, where the sorting device 40 sorts the battery cells 600 based on the first and second detection sub-results. When the sorting device 40 identifies a battery cell 600 as an abnormal battery cell, it moves the abnormal battery cell to a first target area. When it identifies a battery cell 600 as a normal battery cell, the normal battery cell is transported to the loading / unloading station. The loading / unloading device 50 performs a tray unlocking operation, freeing the tray from the battery cell 600. The loading / unloading device 50 then places the normal battery cell on the loading / unloading transport line 500, and the normal battery cell is transported to the next station along with the loading / unloading transport line 500, thereby executing the subsequent process. To load the next battery cell 600 to be detected, the empty tray is transported to the loading station, thereby achieving tray recycling.

[0046] The loading device 10 secures the battery cells 600 to be detected to the tray and moves the battery cells 600 to the first detection device 20. The first detection device 20 and the second detection device 30 detect the alignment of the polarity of the battery cells 600 and the internal condition of the battery cells 600 from all angles. The sorting device 40 sorts abnormal battery cells to the first target area based on the first and second detection sub-results. The loading / unloading device 50 separates the normal battery cells from the tray and moves the normal battery cells to the second target area. Throughout the entire detection process, operator involvement can be significantly reduced, and the coordination between each device enables automated operation of the entire detection process, including loading, detection, sorting, and loading / unloading, effectively improving the detection efficiency and accuracy of the battery cell detection system.

[0047] In this embodiment of the present invention, the loading device 10, the first detection device 20, the second detection device 30, the sorting device 40, and the loading / unloading device 50 are arranged in sequence along the transport direction of the transport line. Through the cooperation of each device, the entire detection operation, including loading, detection, sorting, and loading / unloading, can be automated. The detection efficiency and accuracy of the battery cell detection system are effectively improved by detecting the battery cells 600 across their entire surface using the first and second detection devices.

[0048] In a selective embodiment, as shown in Figure 1, the battery cell detection system further includes a posture adjustment device 60, which is located at the first inlet end of the first detection device 20 or the second inlet end of the second detection device 30, and is used to adjust the tray to a preset posture such that the target detection position of the battery cell 600 is opposite to the detection end of the first detection device 20, or the target detection position of the battery cell 600 is opposite to the detection end of the second detection device 30.

[0049] Specifically, one of the first detection device 20 and the second detection device 30 detects the alignment of the poles of the battery cell 600. For example, the first detection device 20 is a CT detection device, and this first detection device 20 detects the alignment of the poles of the battery cell 600.

[0050] The orientation adjustment device 60 is provided at the first inlet end of the first detection device 20. The manipulator of the orientation adjustment device 60 can move and rotate in three mutually orthogonal directions, and through linear movement and rotation, it can adjust the tray to a preset orientation, that is, adjust the arrangement angle of the tray. In this preset orientation, the target detection position of the battery cell 600 and the detection end of the first detection device 20 are opposite each other, and the target detection position of the battery cell 600 is at the diagonal position of the battery cell 600.

[0051] As an example, we will explain that battery cell 600 is a rectangular parallelepiped. Battery cell 600 has a length direction and a width direction, and along the circumference of battery cell 600, the positions of the four end corners of battery cell 600 are defined as the first endpoint, second endpoint, third endpoint, and fourth endpoint, respectively. The first and third endpoints are located on the first diagonal, and the second and fourth endpoints are located on the second diagonal.

[0052] The first and third endpoints of the first diagonal are target detection positions, and the adjustment operation of the posture adjustment device 60 positions both the first and third endpoints on the centerline of the first detection device 20. It is understood that the second and fourth endpoints are also positioned on the centerline of the first detection device 20. The tray arrangement angle is the angle between the center plane of the tray and the centerline of the first detection device 20. In a preset posture, the tray arrangement angle is defined as the first arrangement angle.

[0053] The orientation adjustment device 60 adjusts the tray's positioning angle so that the target detection position of the battery cell 600 is relative to the detection end, thereby accurately detecting the alignment of the pole pieces within the battery cell 600. The first positioning angle of the tray varies depending on the size specifications of the battery cell 600, and can be 20 degrees, 30 degrees, 35 degrees, 40 degrees, 45 degrees, etc., as long as it is ensured that the diagonal endpoints of the battery cell 600 are located on the center line of the first detection device 20.

[0054] By individually controlling the orientation adjustment device 60 and adjusting the first arrangement angle according to the type of battery cell 600, the detection requirements for battery cells of different sizes can be met, providing high adaptability.

[0055] If both the first detection device 20 and the second detection device 30 are CT detection devices, then one orientation adjustment device 60 is installed at the first entrance end of the first detection device 20, and the other orientation adjustment device 60 is installed at the second entrance end of the second detection device 30. After the first detection device 20 completes the detection of the first and third endpoints of the battery cell 600, the battery cell 600 is transported to the second entrance end of the second detection device 30. The orientation adjustment device 60 at the second entrance end of the second detection device 30 adjusts the tray positioning angle so that the second and fourth endpoints on the second diagonal of the battery cell 600 are positioned on the center line of the second detection device 30, referring to the adjustment method described above. This completes the detection of the second and fourth endpoints of the battery cell 600 by the second detection device 30.

[0056] Since the orientation adjustment device 60 adjusts the tray's positioning angle, it can adjust the positioning angle more quickly and accurately compared to manually adjusting the tray's positioning angle, thus avoiding errors and uncontrollable situations caused by manual operation, and thus improving the accuracy and reliability of the detection results.

[0057] In the embodiment of the present invention, the orientation adjustment device 60 is provided at the first inlet end of the first detection device 20 or the second inlet end of the second detection device 30. By adjusting the arrangement angle of the tray with the orientation adjustment device 60, the target detection position of the battery cell 600 is brought into relation with the detection end. This contributes to ensuring the accuracy of the arrangement position of the battery cell 600, and further improves the accuracy and reliability of the detection results.

[0058] As shown in Figure 1, in a selective embodiment, the battery cell detection system further comprises a first transfer device 70, a second transfer device 80, and a first rotary transfer line 100.

[0059] The first rotary conveying line 100 is provided between the first outlet end of the first detection device 20 and the second inlet end of the second detection device 30. The first transfer device 70 is provided at the first outlet end and is used to transfer the tray at the first outlet end to the first end of the first rotary conveying line 100. The second transfer device 80 is provided at the second end of the first rotary conveying line 100 and is used to transfer the tray to the second inlet end.

[0060] Specifically, the first detection device 20 and the second detection device 30 are arranged parallel to each other with a gap between them, the first detection device 20 is equipped with a first transport line 21, and the second detection device 30 is equipped with a second transport line 31, and the transport direction of the first transport line 21 and the transport direction of the second transport line 31 are parallel to and opposite to each other.

[0061] The first rotary conveying line 100 is provided between the first exit end of the first detection device 20 and the second inlet end of the second detection device 30, the conveying direction of the first rotary conveying line 100 is perpendicular to the conveying direction of the first conveying line 21, and the conveying direction of the first rotary conveying line 100 is perpendicular to the conveying direction of the second conveying line 31.

[0062] The first rotary conveying line 100 has opposing first and second ends, and the first transfer device 70 is located at the first exit end of the first detection device 20. The first transfer device 70 may be a push rod transfer device comprising a first push rod and a second push rod parallel to each other, wherein the pressing strokes of the first push rod and the second push rod are different.

[0063] The battery cells 600 detected in the first detection channel are moved to the first exit end as the first transport line 21 moves, and at this time the tray is still in a preset position, and the position angle of the tray at this time becomes the first position angle, however the first position angle may be 30 degrees.

[0064] The first transfer device 70 adjusts the tray from a preset position to a target position. The first and second push rods of the first transfer device 70 move toward the tray, and the two push rods apply different amounts of thrust to the tray, adjusting the tray from a first positioning angle to a second positioning angle, and pushing the tray from the first exit end to the first end of the first rotary conveying line 100. At the second positioning angle, the center plane of the tray and the center line of the first conveying line 21 are parallel, and the second positioning angle is 0 degrees.

[0065] The tray carrying the battery cells 600 moves to the second end along the first rotary conveyor line 100, and the second transfer device 80 is located at the second end of the first rotary conveyor line 100. The second transfer device 80 may be a jacking transfer device equipped with a lifting mechanism and a rotating mechanism. The tray moves to the second end, is lifted to a target height by the lifting mechanism, and is further moved to the second entrance end of the second detection device 30 as the rotating mechanism rotates.

[0066] The rotation direction of the rotating mechanism is perpendicular to the rotation direction of the first rotating conveying line 100, and it is understood that this is to adjust the direction of movement of the tray.

[0067] The first transfer device 70 adjusts the tray's positioning angle, moving it from a first positioning angle to a second positioning angle, and also transfers the tray to the first rotary transfer line 100. The second transfer device 80 then moves the tray, which has been moved to the second end, to the second entrance end of the second detection device 30.

[0068] The first conveying line 21, the first rotary conveying line 100, and the second conveying line 31 all have a U-shaped conveying direction, which is advantageous for making the overall structure of the battery cell detection system more compact and for reducing the space occupied by the battery cell detection system.

[0069] The first transfer device 70 adjusts the tray's positioning angle, and the first transfer device 70 and the second transfer device 80 adjust the tray's transport direction. Therefore, operator intervention is unnecessary, which contributes to the intelligent operation of the battery cell detection system.

[0070] As shown in Figure 1, in a selective embodiment, the battery cell detection system further comprises a third transfer device 90 and a second rotary transfer line 300.

[0071] The sorting device 40 is provided in the transport direction of the sorting transport line 200, which has a third end close to the second detection device 30 and a fourth end away from the second detection device 30. The second rotary transport line 300 is provided between the fourth end and the first inlet end, and the transport direction of the second rotary transport line 300 is parallel to the transport direction of the first rotary transport line 100. The third transfer device 90 is provided at the fourth end and is used to transfer the trays at the fourth end to the second rotary transport line 300. The second rotary transport line 300 is used to transport trays containing normal battery cells, empty trays, and trays containing battery cells to be detected.

[0072] Specifically, the sorting device 40 is provided in the transport direction of the sorting transport line 200, and the sorting transport line 200 has opposing third and fourth ends, with the third end facing the second outlet end of the second detection device 30.

[0073] The second rotary conveying line 300 is arranged parallel to the first rotary conveying line 100 with a gap between them, and the second rotary conveying line 300 has opposing fifth and sixth ends, so that the fifth end faces the fourth end of the sorting conveying line 200, and the sixth end faces the first inlet end of the first detection device 20.

[0074] As a result, the first conveying line 21, the first rotary conveying line 100, the second conveying line 31, the sorting conveying line 200, and the second rotary conveying line 300 form a circular detection conveying line. The first conveying line 21, the first rotary conveying line 100, the second conveying line 31, the sorting conveying line 200, and the second rotary conveying line 300 may be a double-speed chain conveying structure, an O-shaped belt conveying structure, or the like.

[0075] The third transfer device 90 is provided at the fourth end of the sorting and conveying line 200, and the third transfer device 90 may be a jacking and conveying device equipped with a jacking mechanism and a rotating mechanism. The trays are jacked up to a target height by the jacking mechanism and conveyed to the second rotating conveying line 300 by the rotating mechanism.

[0076] The tray containing the normal battery cells moves along the second rotary conveying line 300 to the loading / unloading position corresponding to the loading / unloading device 50. The loading / unloading device 50 then releases the tray, freeing the normal battery cells from the tray. Subsequently, the loading / unloading device 50 moves the normal battery cells to the loading / unloading conveying line 500 and performs the following operations.

[0077] The tray separated from the normal battery cells is moved along the second rotary conveyor line 300 to a loading position corresponding to the loading device 10, and the loading device 10 grasps the battery cells 600 to be detected on the loading conveyor line 400 and places the battery cells 600 on the tray. The locking action presses the battery cells 600 against the tray. The tray with the battery cells 600 is moved along the second rotary conveyor line 300 to the first entrance end of the first detection device 20.

[0078] The first conveying line 21, the first rotary conveying line 100, the second conveying line 31, the sorting conveying line 200, and the second rotary conveying line 300 form a circular detection conveying line, and the loading device 10, the shape adjustment device 60, the first detection device 20, the first transfer device 70, the second transfer device 80, the sorting device 40, the third transfer device 90, and the loading / unloading device 50 are arranged sequentially along the conveying direction of the detection conveying line, which improves the overall compactness of the battery cell detection system and is advantageous in reducing the space occupied by the battery cell detection system.

[0079] The trays move along the transport direction of the detection transport line, and the trays can be recycled. By controlling the transport speed of each transport line, multiple battery cells 600 can be detected sequentially, contributing to improved detection efficiency.

[0080] As shown in Figure 1, in a selective embodiment, the battery cell detection system is located on one side of the second rotary conveyor line 300 and further comprises a loading conveyor line 400 for transporting the battery cells 600 to be detected. The loading device 10 is used to place the battery cells 600 to be detected in the loading conveyor line 400 onto an empty tray in the second rotary conveyor line 300, and the second rotary conveyor line 300 is used to transport the trays loaded with the battery cells 600 to be detected to the first entrance end.

[0081] Specifically, the loading and conveying line 400 is installed in close proximity to the second rotary conveying line 300, and the battery cells 600 to be detected move to the loading station along with the loading and conveying line 400.

[0082] The loading device 10 grasps the battery cells 600 on the loading transport line 400 and moves the battery cells 600 to an empty tray on the second rotary transport line 300, and the tray on which the battery cells 600 are mounted moves along with the second rotary transport line 300 to the first entrance end.

[0083] By installing the loading and transport line 400, the battery cells 600 to be detected are moved to the loading station along with the loading and transport line 400, which helps to further improve the intelligent operation of the battery cell detection system.

[0084] As shown in Figure 1, in a selective embodiment, the battery cell detection system is located on one side of the second rotary conveying line 300 and further comprises a loading / unloading conveying line 500 for transporting the detected normal battery cells. The loading / unloading device 50 is used to separate the normal battery cells that have been transported to the second rotary conveying line 300 by the sorting conveying line 200 from the trays and to place the normal battery cells on the loading / unloading conveying line 500.

[0085] Specifically, the loading / unloading conveying line 500 is positioned in close proximity to the second rotary conveying line 300. A tray carrying normal battery cells is moved to the loading / unloading station along with the second rotary conveying line 300. At the loading / unloading station, the tray releases the normal battery cells, and the loading / unloading device 50 grasps the normal battery cells and transfers them to the loading / unloading conveying line 500. The normal battery cells move to the next station along with the movement of the loading / unloading conveying line 500 and perform subsequent operations.

[0086] By installing the loading / unloading transport line 500, the detected normal battery cells are moved to the next station along with the loading / unloading transport line 500, which helps to further improve the intelligent operation of the battery cell detection system.

[0087] As shown in Figure 3, an embodiment of the present invention further provides a detection method for a battery cell detection system comprising the following steps.

[0088] Step 101: Based on the load signal, the battery cells 600 to be detected are transferred to the first detection device 20.

[0089] Step 102: Based on the first detection signal, the first detection device 20 detects the battery cell 600 and obtains the first detection sub-result.

[0090] Step 103: Transfer the battery cell 600 to be detected to the second detection device 30. Step 104: Based on the second detection signal, the second detection device 30 detects the battery cell 600 and obtains the second detection sub-result.

[0091] Step 105: Based on the first and second detection sub-results, identify battery cell 600 as either an abnormal or normal battery cell.

[0092] Step 106: Abnormal battery cells are sorted into the first target area, while normal battery cells are moved to the second target area.

[0093] Specifically, the configuration of the battery cell detection system is as described above and will not be repeated here. The loading device 10, the first detection device 20, the first transfer device 70, the second transfer device 80, the second detection device 30, the sorting device 40, and the loading / unloading device 50 are arranged in order along the transport direction of the detection transport line. Each device is connected to the controller in a manner that allows for communication.

[0094] When the loading device 10 receives a loading signal, it moves the battery cell 600 to be detected to the first inlet end of the first detection device 20. After the tray on which the battery cell 600 is mounted is adjusted to a first positioning angle, the tray moves into the first detection channel. When the first detection mechanism receives a first detection signal, it detects the target detection position of the battery cell 600. A first scan image is generated by helically scanning the endpoints along the diagonal of the battery cell 600, and a first detection sub-result is obtained from the first scan image. The detected battery cell 600 moves to the first outlet end along the first transport line 21.

[0095] When the first transfer device 70 receives the first transfer signal, it adjusts the tray on which the battery cells 600 are mounted to a second positioning angle and transfers the battery cells 600 at the first exit end to the first rotary transfer line 100, and the battery cells 600 move to the second end along with the first rotary transfer line 100. When the second transfer device 80 receives the second transfer signal, it transfers the battery cells 600 at the second end to the second inlet end of the second detection device 30.

[0096] The tray containing the battery cell 600 moves into the second detection channel, and when the second detection mechanism receives the second detection signal, the second detection mechanism detects the target detection position of the battery cell 600. A second scan image is generated by performing a helical scan on the battery cell 600, and a second detection sub-result is obtained from the second scan image. After detection, the battery cell 600 is moved to the sorting transport line 200 by the second transport line 31.

[0097] Based on the first and second detection sub-results, it is determined whether the detected battery cell 600 is a normal battery cell or an abnormal battery cell. The first detection sub-result is either pass or fail, and the second detection sub-result is either pass or fail. If both the first and second detection sub-results are pass, the battery cell 600 is identified as a normal battery cell. On the other hand, if at least one of the first or second detection sub-results is a fail, the battery cell 600 is identified as an abnormal battery cell.

[0098] When battery cell 600 is identified as an abnormal battery cell, the sorting device 40 receives a sorting signal and then sorts the abnormal battery cell to a first target area, which may be a defective product collection warehouse.

[0099] Once the battery cell 600 is identified as a normal battery cell, the sorting device 40 receives a release signal and then moves the tray containing the normal battery cell to the loading / unloading station.

[0100] When the loading / unloading device 50 receives a loading / unloading signal, it performs the next step by moving the normal battery cells to the second target area.

[0101] In the overall detection process, operator involvement can be significantly reduced, and the coordination between the devices enables automated operation of the entire detection process, including loading, detection, sorting, and loading / unloading. The first detection device 20 detects the alignment of the polarity of the battery cell 600, while the second detection device 30 detects the degree of internal defects in the battery cell 600. Thus, the first detection device 20 and the second detection device 30 can perform a comprehensive detection of the battery cell 600. According to the above detection method, detection efficiency and detection accuracy are effectively improved.

[0102] In a selective embodiment, before the battery cell 600 is detected by the first detection device 20, The system further includes adjusting the tray on which the battery cell 600 is mounted to a preset orientation based on an orientation adjustment signal, so that the target detection position of the battery cell 600 and the detection end of the first detection device 20 are relative, or Before the second detection device 30 detects the battery cell 600, Based on the orientation adjustment signal, the tray on which the battery cell 600 is mounted is adjusted to a preset orientation so that the target detection position of the battery cell 600 and the detection end of the second detection device 30 are relative to each other. It also has the following features.

[0103] Specifically, if the first detection device 20 is a CT detection device, the posture adjustment device 60 is provided at the first entrance end of the first detection device 20, and if the second detection device 30 is a CT detection device, the posture adjustment device 60 is provided at the second entrance end of the second detection device 30.

[0104] As an example, if the orientation adjustment device 60 is provided at the first entrance end, when the tray is moved to the first entrance end and the orientation adjustment device 60 receives an orientation adjustment signal, the orientation adjustment device 60 adjusts the tray on which the battery cells 600 are mounted to a first arrangement angle so that the target detection position of the battery cells 600 can be relative to the detection end of the first detection mechanism.

[0105] The manipulator of the orientation adjustment device 60 can move and rotate in three mutually orthogonal directions, and by adjusting the tray to a preset orientation through linear movement and rotation, the first and third endpoints on the diagonal of the battery cell 600 are both positioned on the center line of the first detection device 20, or the second and fourth endpoints on the diagonal of the battery cell 600 are both positioned on the center line of the first detection device 20. The first detection mechanism can perform helical scanning around the first and third endpoints and can accurately detect the alignment of the polar segments of the battery cell 600.

[0106] Since the orientation adjustment device 60 adjusts the tray's positioning angle, it can adjust the positioning angle more quickly and accurately compared to manually adjusting the tray's positioning angle, thus avoiding errors and uncontrollable situations caused by manual operation, and thus improving the accuracy and reliability of the detection results.

[0107] In a selective embodiment, the step of transferring the battery cell 600 to be detected to the first detection device 20 includes: The battery cells 600 to be detected are transported along the loading transport line 400 to a position corresponding to the loading device 10, Based on the loading signal, the battery cell 600 is placed on an empty tray in the second rotary conveyor line 300, The second rotary conveying line 300 transports the tray on which the battery cells 600 are mounted to the first inlet end of the first detection device 20, It is equipped with.

[0108] Specifically, the first conveying line 21, the first rotary conveying line 100, the second conveying line 31, the sorting conveying line 200, and the second rotary conveying line 300 form a circular detection conveying line. The loading conveying line 400 and the second rotary conveying line 300 are parallel to each other.

[0109] The battery cell 600 to be detected moves to the loading station along the loading conveyor line 400. When the loading device 10 receives a loading signal, it grasps the battery cell 600 on the loading conveyor line 400 and places the battery cell 600 on an empty tray on the second rotary conveyor line 300. The tray presses against the battery cell 600, and the tray with the battery cell 600 moves along the second rotary conveyor line 300 to the first entrance end of the first detection device 20.

[0110] The battery cell detection system operates intelligently by coordinating the loading and conveying line 400, the second rotary conveying line 300, and the loading device 10 to move the tray carrying the battery cells 600 to the first entrance end.

[0111] In a selective embodiment, to transfer the battery cell 600 to be detected to the second detection device 30, Based on the first transfer signal, the tray is adjusted from a preset position to a target position. The tray, adjusted to the target shape, is transferred to the first rotary conveyor line 100. Based on the second transfer signal, the tray in the first rotary transport line 100 is transferred to the second inlet end of the second detection device 30. It is equipped with.

[0112] Specifically, after the battery cell 600 has completed detection within the first detection channel, it moves to the first exit end of the first detection device 20, at which point the tray is still in a preset position and is at a first positioning angle, which may be 30 degrees.

[0113] The first push rod and the second push rod of the first transfer device 70 push action adjust the tray from a preset position to a target position, in which case the tray is at a second positioning angle, which is 0 degrees.

[0114] When the tray moves to the first exit end of the first detection device 20 and the first transfer device 70 receives the first transfer signal, the first transfer device 70 pushes the tray from a first positioning angle to a second positioning angle and pushes the tray onto the first rotary transfer line 100.

[0115] As the tray moves to the second end along the first rotary transport line 100, and the second transport device 80 receives the second transport signal, the second transport device 80 changes the direction of movement of the tray through its lifting and rotating movements, and transports the tray to the second entrance end of the second detection device 30.

[0116] The first transfer device 70 adjusts the tray's positioning angle, and the second transfer device 80 adjusts the tray's direction of movement. This eliminates the need for operator intervention and contributes to the intelligent operation of the battery cell detection system.

[0117] In a selective embodiment, abnormal battery cells are sorted into a first target area, while normal battery cells are moved to a second target area. When battery cell 600 is identified as an abnormal battery cell, the sorting device 40 sorts the abnormal battery cell to the first target area based on the sorting signal, or When battery cell 600 is identified as a normal battery cell, the normal battery cell is transferred to the second rotary conveyor line 300 based on the third transfer signal. Based on the loading / unloading signal, the loading / unloading device 50 moves the normal battery cells to the second target area. It is equipped with.

[0118] Specifically, the battery cells 600 detected by the first detection device 20 and the second detection device 30 were moved to the sorting device 40. Based on the first and second detection sub-results, it is determined whether the battery cell 600 is a normal battery cell or an abnormal battery cell.

[0119] When the sorting device 40 receives a sorting signal to identify a battery cell 600 as an abnormal battery cell, the sorting device 40 grasps the abnormal battery cell and places it in the defective product collection warehouse.

[0120] When a battery cell 600 is identified as a normal battery cell, the sorting device 40, upon receiving a release signal, moves the tray containing the normal battery cell to the third transfer device 90 along the sorting transport line 200.

[0121] When the third transfer device 90 receives the third transfer signal, it transfers the tray containing the normal battery cells to the second rotary transfer line 300, and then moves the normal battery cells along the second rotary transfer line 300 to the loading / unloading station.

[0122] When the loading / unloading device 50 receives a loading / unloading signal, it separates the normal battery cell from the tray, grasps the normal battery cell, places it on the loading / unloading transport line 500, and the normal battery cell is moved along the loading / unloading transport line 500 to the next station to perform subsequent operations.

[0123] The above are merely specific embodiments of the present invention, and the scope of protection of this application is not limited herein. Any changes or substitutions of the spirit and principles of the present invention shall be included within the scope of protection of this application. Accordingly, the scope of protection of this application should be based on the claims. [Explanation of Symbols]

[0124] ---Explanation of Drawing Symbols--- 10: Loading device; 20: First detection device; 21: First conveyor line; 30: Second detection device; 31: Second conveyor line; 40: Sorting device; 50: Loading and unloading equipment; 60: Posture adjustment device; 70: First transfer device; 80: Second transfer device; 90: Third transfer device; 100: First rotary conveyor line; 200: Sorting and conveying line; 300: Second rotary conveyor line; 400: Loading and conveying line; 500: Loading / unloading conveying line; 600: Battery cell.

Claims

1. A battery cell detection system, It comprises a loading device, a first detection device, a second detection device, a sorting device, and a loading / unloading device, all arranged in sequence along the transport direction. The loading device is used to move the tray on which the battery cells are mounted to the first entrance end of the first detection device. The first detection device is used to detect the battery cell and generate a first detection sub-result. The second detection device is used to detect the battery cell and generate a second detection sub-result. The sorting device is used to sort abnormal battery cells to a first target area based on the first detection sub-result and the second detection sub-result. The loading / unloading device is used to move the detected normal battery cells to a second target area. A battery cell detection system characterized by the following features.

2. The system further includes a posture adjustment device provided at the first inlet end of the first detection device or the second inlet end of the second detection device, The orientation adjustment device is used to adjust the tray to a preset orientation such that the target detection position of the battery cell and the detection end of the first detection device are relative to each other, or the target detection position of the battery cell and the detection end of the second detection device are relative to each other. The battery cell detection system according to claim 1.

3. A first rotary conveying line is provided between the first outlet end of the first detection device and the second inlet end of the second detection device, A first transfer device provided at the first exit end for transferring the tray at the first exit end to the first end of the first rotary transfer line, The system further includes a second transfer device provided at the second end of the first rotary transfer line for transferring the tray to the second inlet end. The battery cell detection system according to claim 2.

4. It further comprises a third transfer device and a second rotary transfer line, The sorting device is provided in the transport direction of the sorting transport line, The sorting and conveying line has a third end close to the second detection device and a fourth end away from the second detection device. The second rotary conveying line is provided between the fourth end and the first inlet end, and its conveying direction is parallel to the conveying direction of the first rotary conveying line. The third transfer device is provided at the fourth end and is used to transfer the tray at the fourth end to the second rotary transfer line. The second rotary conveying line is used to convey the tray containing normal battery cells, the empty tray, and the tray containing the battery cells to be detected. The battery cell detection system according to claim 3.

5. The system further includes a loading transport line provided on one side of the second rotary transport line for transporting battery cells to be detected, The loading device is used to place the battery cells to be detected in the loading conveying line onto the empty trays in the second rotary conveying line. The second rotary conveying line is used to transport the tray on which the battery cells to be detected are mounted to the first entrance end. The battery cell detection system according to claim 4.

6. The system further includes a loading / unloading transport line provided on one side of the second rotary transport line for transporting the detected normal battery cells, The loading / unloading device is used to separate the normal battery cells that have been transported to the second rotary transport line by the sorting transport line from the tray and to place the normal battery cells on the loading / unloading transport line. The battery cell detection system according to claim 4.

7. A detection method for a battery cell detection system, Based on the load signal, the battery cells to be detected are transferred to the first detection device, Based on the first detection signal, the first detection device detects the battery cell to obtain a first detection sub-result, The battery cell to be detected is transferred to the second detection device, Based on the second detection signal, the second detection device detects the battery cell to obtain a second detection sub-result, Based on the first detection sub-result and the second detection sub-result, the battery cell is identified as either an abnormal battery cell or a normal battery cell. The system includes selecting the abnormal battery cells to move to a first target area and moving the normal battery cells to a second target area. A detection method for a battery cell detection system.

8. Before the battery cell is detected by the first detection device described above, The method further includes adjusting the tray on which the battery cell is mounted to a preset orientation such that the target detection position of the battery cell and the detection end of the first detection device are relative to each other, based on the orientation adjustment signal, or Before the battery cell is detected by the second detection device described above, The further includes adjusting the tray on which the battery cells are mounted to a preset orientation such that the target detection position of the battery cells and the detection end of the second detection device are relative to each other, based on the orientation adjustment signal. A detection method for the battery cell detection system according to claim 7.

9. The above-mentioned transfer of the battery cells to be detected to the first detection device is, The battery cell to be detected is transported along the loading transport line to a position corresponding to the loading device, Based on the loading signal, the battery cell is placed on an empty tray in the second rotary conveyor line, This includes transporting the tray on which the battery cells are mounted to the first inlet end of the first detection device by the second rotary transport line, A detection method for the battery cell detection system according to claim 7.

10. To transfer the battery cell to be detected to the second detection device, Based on the first transport signal, the tray is adjusted from a preset position to a target position. The tray, which has been adjusted to the target shape, is transferred to the first rotary conveying line. The system includes, based on a second transfer signal, transferring the tray in the first rotary transfer line to the second inlet end of the second detection device. A detection method for the battery cell detection system according to claim 7.

11. The process of selecting the abnormal battery cells to move to the first target area and moving the normal battery cells to the second target area involves the following steps: Identifying the battery cell as an abnormal battery cell and, based on the sorting signal, sorting the abnormal battery cell to the first target area using a sorting device, or identifying the battery cell as a normal battery cell and, based on the third transfer signal, transferring the normal battery cell to the second rotary transfer line. This includes moving the normal battery cells to the second target area using a loading / unloading device based on a loading / unloading signal, The detection method for the battery cell detection system according to claim 10.

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