Turnover device for battery piece detection
By designing a flipping device for battery cell testing, a servo motor drives a synchronous belt to achieve precise flipping of the battery cells. Combined with the design of an obstacle avoidance device and conductive cotton suction claws, the problems of low efficiency, high false negative rate and secondary damage in traditional testing methods are solved, achieving efficient and reliable automated testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI BORYUAN INTELLIGENT EQUIPMENT CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional cell inspection methods rely on manual operation, which is inefficient, has a high rate of missed detections, and is prone to causing secondary damage. In particular, with the trend of thinner wafers, robotic gripping methods cannot meet the requirements of high precision and no damage.
A flipping device including a support, a flipping drive, a clearance device, and a suction claw was designed. The device uses a servo motor to drive a synchronous belt to achieve precise flipping of the battery cells. The clearance device avoids damage during gripping, and the design of conductive cotton and suction claws ensures non-destructive clamping, achieving automation and reliability.
It improves the efficiency and accuracy of cell testing, reduces production costs, automates and enhances the reliability of the cell testing process, and avoids secondary damage.
Smart Images
Figure CN224386107U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of photovoltaic module production equipment technology, specifically a flipping device for testing solar cells. Background Technology
[0002] In the production of solar cells, defect detection is a crucial step in ensuring product quality. Traditional detection methods mainly rely on manual operation, which suffers from low efficiency, high missed detection rates, and the potential for secondary damage. As the photovoltaic industry's requirements for product yield continue to increase, automated testing equipment is gradually becoming the industry standard. However, existing automated testing equipment still faces issues such as insufficient positioning accuracy and the potential for microcracks during cell flipping. Especially with the trend towards thinner wafers, conventional robotic gripping methods are no longer sufficient to meet the high-precision, non-destructive process requirements. Utility Model Content
[0003] To address the problems in existing technologies, this application provides a flipping device for solar cell testing, which solves the problems of low efficiency, high false negative rate, and easy secondary damage caused by manual operation in traditional testing methods. It improves testing efficiency and accuracy, reduces production costs, and achieves automation and reliability in the solar cell testing process.
[0004] The technical solution is as follows: The flipping device for battery cell testing includes a bracket, a long bracket, a flipping drive device, an obstacle avoidance device, and suction claws; the long bracket has supports on both sides, the obstacle avoidance device is installed on the long bracket, the flipping drive device is installed on the bracket, the output end of the flipping drive device is connected to the long bracket to drive the long bracket to flip, and the suction claws are spaced at the bottom of the long bracket.
[0005] Preferably, the flipping drive device includes a servo motor, a drive wheel, a timing belt, a driven wheel, a bearing, and a mounting plate; the mounting plate is fixedly mounted on the bracket, the servo motor is fixedly mounted on the mounting plate, the output end of the servo motor is connected to the drive wheel, the driven wheel is mounted on the bracket, and the drive wheel and the driven wheel work together through the timing belt.
[0006] Specifically, the obstacle avoidance device includes cylinder A, fixed plate A, slider A, cylinder B, fixed plate B, slider B, insulating plate, and conductive plate; fixed plate A is fixedly mounted on a long support, cylinder A is mounted on fixed plate A, slider A is mounted on the output end of cylinder A, slider A is fixedly connected to fixed plate B, cylinder B is mounted on fixed plate B, slider B is mounted on the output end of cylinder B, insulating plate is mounted on the bottom end of slider B, and conductive plate is mounted on the bottom of insulating plate.
[0007] Specifically, the driven wheel and the long support are fixedly connected by bearings.
[0008] Preferably, conductive cotton is provided on both sides of the bottom end of the long strip support. The conductive cotton is located between the suction claw and the avoidance device. The conductive plate moves and comes into contact with the conductive cotton to form a closed conductive circuit. The conductive cotton is connected to the long strip support through an insulating block.
[0009] Preferably, the suction claw is strip-shaped with suction cups at both ends; the suction cups are made of elastic material.
[0010] Preferably, a crossbeam is provided between the supports, and the crossbeam is located above the long support.
[0011] In summary, the obstacle avoidance device prevents damage to the battery cells during the gripping process; the flipping drive device enables the flipping and resetting of the battery cells; the driven wheel and the long support are connected by bearings, making the connection more stable; the conductive cotton ensures that when the battery cell is clamped between the conductive cotton and the conductive plate to form a conductive circuit, the soft material of the conductive cotton provides a certain degree of cushioning, preventing the clamping from being too tight and damaging the battery cell; the strip-shaped suction claw allows for a large gripping span and a more secure grip, and the suction cup is made of elastic material, making it less prone to breakage when gripping the battery cell; the crossbeam enhances the stability of the device. In conclusion, the flipping device for battery cell testing solves the problems of low efficiency, high missed detection rate, and easy secondary damage caused by traditional manual operation methods, achieving non-destructive flipping of battery cells during the testing process, improving testing efficiency and accuracy, reducing production costs, and realizing automation and reliability in the battery cell testing process. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the flipping device for testing battery cells according to the present invention;
[0013] Figure 2 This is a schematic diagram of the structure of the flipping drive device of this utility model;
[0014] Figure 3 This is a schematic diagram of the obstacle avoidance device of this utility model;
[0015] Figure 4 This is a partially enlarged structural diagram of the flipping device A for battery cell testing according to this utility model.
[0016] Reference numerals in the attached drawings: 1. Tilting drive device; 101. Servo motor; 102. Drive wheel; 103. Driven wheel; 104. Bearing; 105. Synchronous belt; 106. Mounting plate; 2. Avoidance device; 201. Cylinder A; 202. Fixing plate A; 203. Slider A; 204. Fixing plate B; 205. Cylinder B; 206. Slider B; 207. Insulating plate; 208. Conductive plate; 3. Bracket; 4. Long strip bracket; 5. Suction claw; 501. Suction cup; 6. Conductive cotton; 7. Crossbeam. Detailed Implementation
[0017] To make the above-mentioned objects, features, and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.
[0018] The long support 4 has supports 3 at both ends. Supports 3 are L-shaped supports with horizontal and vertical surfaces. The vertical surface is perpendicular to the long support 4, and the horizontal surface is connected to the long support 4, secured by nuts. Avoidance devices 2 are symmetrically installed on the upper surface of the long support 4 near both ends, specifically inside the connection area between the long support 4 and the supports 3. A flipping drive device 1 is installed on the vertical surface of the supports 3. Suction claws 5 are installed at intervals at the bottom of the long support 4. A photographic inspection device is installed behind the flipping device for battery cell inspection. To facilitate the movement of the flipping device for battery cell inspection, a composite drive design is adopted: it connects to a lifting device to achieve vertical movement and connects to a horizontal drive device to achieve horizontal displacement. The lifting device controls the flipping device for battery cell inspection to precisely position itself vertically via a guide mechanism, ensuring stability during the gripping process; the horizontal drive device drives the flipping device for battery cell inspection to move horizontally via a mounting base, achieving precise transfer between multiple workstations.
[0019] The obstacle avoidance device 2 is mounted on the long support 4. A fixed plate A202 is fixedly mounted on the long support 4. A cylinder A201 is fixedly mounted on the fixed plate A202. The output end of cylinder A201 is connected to a slider A203. Slider A203 is fixedly connected to a fixed plate B204. A cylinder B205 is fixedly mounted on the fixed plate B204. A slider B206 is mounted on the output end of cylinder B205. An insulating plate 207 and a conductive plate 208 are sequentially mounted on the bottom end of slider B206. A201 drives slider A203 to move to both sides of the long support 4, causing the fixed plate B204 to move together. Simultaneously, cylinder B205 drives slider B206 to move upwards. Cylinder A201 drives slider A203 to move horizontally to both sides, while cylinder B205 drives slider B206 to move upwards, increasing the distance and lifting height from the battery cell. This prevents the suction claw 5 from touching the battery cell during gripping, thus avoiding breakage. This ensures the avoidance device 2 successfully avoids contact during the gripping process. The horizontal drive device controls the flipping device for battery cell detection to move horizontally above the battery cell. When the lifting device drives the flipping device for battery cell detection to move downwards, the avoidance device activates, and the suction claw 5 touches the battery cell, successfully gripping it. After successfully gripping the battery cell, the lifting device drives the flipping device for battery cell detection to rise and reset, and the flipping drive device 1 is activated. The flipping drive device 1 is mounted and fixed on the bracket 3. The mounting plate 106 is fixedly mounted on the vertical surface of the bracket 3. The servo motor 101 is connected to the drive wheel 102 through the pre-drilled mounting holes on the mounting plate 106. The driven wheel 103 is mounted on the horizontal surface of the bracket 3. The driven wheel 103 is fixedly connected to the long support 4 through the bearing 104. The drive wheel 102 and the driven wheel 103 work together through the synchronous belt 105. During operation, the servo motor 101 drives the drive wheel 102 to rotate, which in turn drives the driven wheel 103 to rotate through the synchronous belt 105. The rotational motion is then transmitted to the long support 4 through the bearing 104, ultimately flipping the battery cell on the suction claw 5. The flipping drive device 1 drives the long support 4 to rotate 90 degrees, turning the surface of the battery cell to be inspected towards the inspection device for photographing and inspection.
[0020] The solar cells are transported to the workstation via a conveyor belt. A horizontal drive unit moves the flipping device for solar cell inspection horizontally above the solar cells, while a lifting device moves the flipping device downwards. The obstacle avoidance device 2 is activated, and cylinder A201 drives slider A203 outwards, moving a fixed plate B204 fixedly connected to slider A203. Cylinder B205 is mounted on fixed plate B204, which drives slider B206 upwards. This combined motion increases the horizontal distance and vertical height difference between the obstacle avoidance device 2 and the solar cells, ensuring that the obstacle avoidance device 2 will not touch the solar cells and cause them to break during descent. The suction claw 5 contacts the solar cells, picks them up, and the entire flipping device for solar cell inspection rises. Cylinder B205 drives slider B206 to descend below the height of the battery cell. Cylinder A201 drives slider A203 to move inward and reset. Cylinder B205 then drives slider B206 to rise, causing conductive plate 208 to rise and clamp the battery cell between conductive plate 208 and conductive cotton 6, forming a closed conductive circuit. The flipping drive device 1 drives the long support 4 to rotate 90 degrees, turning the surface of the battery cell to be inspected towards the inspection device for photographic inspection.
[0021] The obstacle avoidance device 2 includes a fixed plate A202, a cylinder A201, a slider A203, a fixed plate B204, a cylinder B205, a slider B206, an insulating plate 207, and a conductive plate 208. The obstacle avoidance device 2 is symmetrically arranged on both sides of the long support 4. The fixed plate A202 is fixed to the long support 4. The cylinder A201 is fixedly mounted on the fixed plate A202. The slider A203 is mounted on the output end of the cylinder A201. The fixed plate B204 is fixedly connected to the slider A203. The cylinder B205 is fixedly mounted on the fixed plate B204. The output end of the cylinder B205 is connected to the slider B206. The bottom end of the slider B206 is connected to the insulating plate 207. The bottom of the insulating plate 207 is connected to the conductive plate 208. When the battery cells are transported to the working position via the conveyor belt, the horizontal drive device and the lifting device drive the flipping device for battery cell inspection to the working position. At the same time, the avoidance device 2 is activated, and cylinder A201 drives slider A203 to move outward, causing the fixed plate B204 to move outward. Simultaneously, cylinder B205 drives slider B206 to rise, ensuring that the avoidance device 2 does not touch and crush the battery cells when the flipping device for battery cell inspection descends as a whole. After the suction claw 5 successfully grabs the battery cell, the lifting device and the horizontal drive device drive the flipping device for battery cell inspection to rise and move horizontally to reset. During the rising process, cylinder B205 drives slider B206 to descend below the height of the battery cell, and cylinder A201 drives slider A203 to move inward to reset. Cylinder B205 then drives slider B206 to rise, causing the conductive plate 208 to rise and clamp the battery cell between the conductive plate 208 and the conductive cotton 6, forming a closed conductive circuit. After the battery cell becomes conductive, it can be used to detect whether there are any defects inside the battery cell.
[0022] The flipping drive device 1 includes a servo motor 101, a drive wheel 102, a synchronous belt 105, a driven wheel 103, a bearing 104, and a mounting plate 106. The flipping drive device is mounted on a bracket 3. The mounting plate 106 is fixedly mounted on the vertical surface of the bracket 3. The servo motor 101 is connected to the drive wheel 102 through a pre-drilled mounting hole on the mounting plate 106. The driven wheel 103 is mounted on the horizontal surface of the bracket 3 and is fixedly connected to the long support 4 via the bearing 104. The drive wheel 102 and the driven wheel 103 work together via the synchronous belt 105. During operation, when the suction claw 5 completes the gripping action of the battery cell and the lifting device and horizontal drive device raise and move the flipping device used for battery cell detection to its initial position, the flipping drive device 1 is activated. The servo motor 101 drives the drive wheel 102 to rotate, which in turn drives the driven wheel 103 to rotate synchronously via the synchronous belt 105. Since the driven wheel 103 is fixedly connected to the long support 4 via a rotating shaft, it drives the long support 4 and the suction claw 5 on it to rotate as a whole. This rotational motion precisely flips the surface of the battery cell to be inspected to the shooting position of the camera of the inspection device, so as to carry out subsequent inspection operations.
[0023] The working process of the cell flipping detection device is as follows: After the device is started, the conveyor belt transports the cells to be inspected to the working position. The horizontal drive device drives the flipping device for cell inspection to move above the cells, and the lifting device drives the flipping device for cell inspection to descend. During the descent, the avoidance device 2 is activated simultaneously: cylinder A201 drives slider A203 to move the fixed plate B204 horizontally outward, while cylinder B205 drives slider B206 to rise vertically. Through this combined motion, a safe avoidance space is formed to ensure that the device will not touch the cells when it descends. After the suction claw 5 contacts and grasps the solar cell, the lifting device and the horizontal drive device raise and move the flipping device used for solar cell inspection to its initial position. Then, cylinder B205 drives slider B206 to descend below the height of the solar cell, and cylinder A201 drives slider A203 to move inward to reset. Cylinder B205 then drives slider B206 to rise, causing the conductive plate 208 to rise and clamp the solar cell between the conductive plate 208 and the conductive cotton 6, forming a closed conductive circuit and completing the electrical detection of internal defects in the solar cell. Subsequently, the flipping drive device 1 begins operation: the servo motor 101 drives the driven wheel 103 to rotate via the synchronous belt 105, causing the long support 4 and suction claw 5 to rotate 90°, precisely oriented the surface of the solar cell to be inspected towards the inspection camera for photographic inspection. The integrated inspection design improves inspection efficiency, and the modular structure facilitates maintenance and debugging, achieving a high degree of automation and reliability in the solar cell inspection process.
[0024] Other embodiments of the present invention will readily conceive of by those skilled in the art upon consideration of the specification and practice of the specific embodiments described herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not described herein. Furthermore, there may be minor differences in the wording of the names of certain components in different embodiments; these minor differences will not affect the understanding of the technical solutions of the present invention by those skilled in the art.
Claims
1. A flipping device for detecting battery cells, characterized in that, It includes a bracket (3), a long bracket (4), a flipping drive device (1), a clearance device (2), and a suction claw (5); the bracket (3) is provided on both sides of the long bracket (4), the clearance device (2) is installed on the long bracket (4), the flipping drive device (1) is installed on the bracket (3), the output end of the flipping drive device (1) is connected to the long bracket (4) to drive the long bracket (4) to flip, and the suction claw (5) is spaced at the bottom of the long bracket (4).
2. The flipping device for detecting battery cells according to claim 1, characterized in that, The flipping drive device (1) includes a servo motor (101), a drive wheel (102), a timing belt (105), a driven wheel (103), a bearing (104), and a mounting plate (106). The mounting plate (106) is fixedly mounted on the bracket (3), the servo motor (101) is fixed on the mounting plate (106), the output end of the servo motor (101) is connected to the drive wheel (102), the driven wheel (103) is mounted on the bracket (3), and the drive wheel (102) and the driven wheel (103) work together through the timing belt (105).
3. The flipping device for detecting battery cells according to claim 1, characterized in that, The obstacle avoidance device (2) includes a cylinder A (201), a fixed plate A (202), a slider A (203), a cylinder B (205), a fixed plate B (204), a slider B (206), an insulating plate (207), and a conductive plate (208). The fixed plate A (202) is fixedly installed on the long support (4). The fixed plate A (202) is provided with a cylinder A (201). The output end of the cylinder A (201) is provided with the slider A (203). The slider A (203) is fixedly connected to the fixed plate B (204). The fixed plate B (204) is provided with a cylinder B (205). The output end of the cylinder B (205) is provided with the slider B (206). The bottom end of the slider B (206) is provided with an insulating plate (207). The bottom of the insulating plate (207) is provided with a conductive plate (208).
4. The flipping device for detecting battery cells according to claim 2, characterized in that, The driven wheel (103) and the long support (4) are fixedly connected by the bearing (104).
5. The flipping device for battery cell testing according to claim 3, characterized in that, The long support (4) has conductive cotton (6) on both sides of its bottom end. The conductive cotton (6) is located between the suction claw (5) and the avoidance device (2). The conductive plate (208) moves to abut against the conductive cotton (6) to form a conductive closed circuit. The conductive cotton (6) is connected to the long support (4) through an insulating block.
6. The flipping device for detecting battery cells according to claim 1, characterized in that, The suction claw (5) is strip-shaped and has suction cups (501) at both ends; the suction cups (501) are made of elastic material.
7. The flipping device for detecting battery cells according to claim 1, characterized in that, A crossbeam (7) is provided between the supports (3), and the crossbeam (7) is located above the long support (4).