A solar cell testing device

Abstract

This invention provides a solar cell testing device, relating to the field of photovoltaic equipment testing. It includes: a base, a correction mechanism, a support, a lead screw, a first motor, a conveying mechanism, an inspection platform, and a detector. The support is mounted on the upper surface of the base; the lead screw is rotatably mounted within the support; the first motor is mounted on the support, and its output end is connected to one end of the lead screw; the conveying mechanism is mounted on the lead screw. This invention can accurately determine the position of the solar panel and automatically calibrate its angle. It can also automatically adjust the position of the vacuum suction cup to ensure uniform and stable force during the suction and transfer of the solar panel; this process is automatic and requires no manual intervention. Furthermore, it prevents the detector from obstructing the drive seat path; the detector automatically resets after the drive seat resets, achieving precise control through a mechanical structure without affecting the testing process.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic equipment testing, specifically to a solar cell testing device. Background Technology

[0002] After solar cells are manufactured through printing and drying processes, solar cell testing equipment is needed to measure the current-voltage (IV) characteristic curves of the cells under different light and temperature conditions using IV testing to evaluate key parameters such as cell conversion efficiency and power output. EL (Electroluminescence) testing is also used to detect abnormalities such as microcracks, fragments, poor soldering, and broken grids in the solar cells.

[0003] CN118611588A discloses a solar cell testing device and method, including a substrate, a fixing column, testing channels, and a conveying structure. When testing the solar cells, multiple testing channels are arranged along the periphery of the fixing column. With the cooperation of an image acquisition lens and a detection probe, material information of the solar cells is acquired. By comparing the data, it is determined whether the corresponding test data is qualified. Qualified cells rotate to the next testing channel, while unqualified cells are conveyed and rejected through the corresponding conveying structure. This facilitates rework of different unqualified defective products, reduces waste of production materials, and increases the production capacity of solar cells.

[0004] Based on the search of the aforementioned patents and the findings of existing equipment, it was discovered that the length and width dimensions of different types of solar panels are not the same. During the process of transferring the solar panels to the inspection platform via the conveying device, the inconsistency in size can easily cause the solar panels to shift or become misaligned relative to the detector, requiring some manual correction before inspection, which reduces efficiency.

[0005] Based on this, the present invention is proposed. Summary of the Invention

[0006] According to embodiments of the present invention, a solar cell testing device is provided to address the problems existing in the background.

[0007] In a first aspect of the present invention, a solar cell testing device is provided.

[0008] The solar cell testing equipment includes: a base, a correction mechanism, a support, a lead screw, a first motor, a conveying mechanism, an inspection platform, and a detector;

[0009] The bracket is mounted on the upper surface of the base; the lead screw is rotatably mounted inside the bracket; the first motor is mounted on the bracket, and the output end of the first motor is connected to one end of the lead screw; the conveying mechanism is mounted on the lead screw, and the rotation of the lead screw can drive the conveying mechanism to move along the axial direction of the lead screw; the inspection platform is mounted on the base; the detector is mounted on the base.

[0010] Preferably, the correction mechanism includes: a fixed base, a mounting frame, a rangefinder, a rotary table, a worm gear, a worm, a second motor, a mounting component, and a support roller;

[0011] The fixed base is fixedly installed on the base; the mounting frame is installed on the fixed base; there are two rangefinders, which are installed parallel to each other and spaced apart on the mounting frame; the rotating platform is rotatably installed on the fixed base; the worm gear is installed on the lower surface of the rotating platform; the worm is rotatably installed in the fixed base, and the worm is meshed with the worm gear; the second motor is installed in the fixed base, and the output end of the second motor is connected to one end of the worm; there are several mounting components, which are respectively installed on the rotating platform, with each pair of mounting components forming a group, and they are arranged symmetrically with each other; there are several idler rollers, which are rotatably installed between each group of mounting components.

[0012] Preferably, the detection position of the rangefinder corresponds to the top position of the idler roller.

[0013] Preferably, the conveying mechanism includes: a drive base, a connecting block, a connecting column, a rotating rod, a cylinder, and a vacuum suction cup;

[0014] The drive seat is threadedly connected to the lead screw; there are several connecting blocks, and several connecting blocks are installed in the drive seat, one of the connecting blocks is fixedly installed, and the remaining connecting blocks are slidably installed in the drive seat; there are several connecting columns, which are rotatably installed on the top of several connecting blocks; there are several rotating rods, which are fixedly installed on several connecting columns, and the ends of two adjacent rotating rods are rotatably connected; there are several cylinders, which are installed on the lower surface of several connecting blocks; there are several vacuum suction cups, which are installed on the output end of several cylinders.

[0015] Preferably, the conveying mechanism further includes: an extension plate, a drive groove, an electric push rod, a fixing block, a drive rod, and a through groove;

[0016] The through slot is formed on the side wall of the drive seat; the extension plate is mounted on the connecting column connected to the fixedly mounted connecting block, and the extension plate extends out of the drive seat through the through slot; the drive groove is formed on the side where the extension plate extends out of the drive seat; the electric push rod is mounted on the side wall of the drive seat; the fixing block is mounted on the output end of the electric push rod; the drive rod is mounted on the fixing block, and the top end of the drive rod is mounted in the drive groove.

[0017] Preferably, a guide rod is installed inside the bracket, and the guide rod passes through the drive seat.

[0018] Preferably, the base is also equipped with a linkage component, which enables the detector to move synchronously when the conveying mechanism moves.

[0019] Preferably, the linkage component includes: a slide rail, a sliding frame, a drive frame, a guide groove, a connecting plate, and a push rod;

[0020] There are two slide rails, each installed on the lower surface of the base; the sliding frame is slidably installed in the slide rail; the drive frame is installed on the top of the sliding frame, and the sliding frame is connected to the detector; the guide groove is formed on the drive frame; the connecting plate is installed on the side wall of the drive base; the push rod is installed on the connecting plate, and the end of the push rod away from the connecting plate is installed in the guide groove.

[0021] Preferably, the guide groove includes an inclined groove and a straight groove, and the inclined groove and the straight groove are interconnected.

[0022] Preferably, the inner cavity of the slide is configured as an inverted trapezoid, and its shape is adapted to the shape of the sliding frame.

[0023] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0024] 1. The present invention provides a solar cell testing device that uses two rangefinders to measure the same side of the solar panel to determine whether the solar panel is in the correct position; by driving a worm gear to rotate through a second motor, the worm gear and worm wheel can rotate the turntable, thereby adjusting the angle of the solar panel located at the top of the roller, and thus automatically calibrating it.

[0025] 2. In this invention, the rotation of one of the connecting columns, through the linkage of the rotating rod, enables the spacing between each connecting block to expand or contract synchronously and equidistantly, thereby adjusting the position of each vacuum suction cup. This allows the equipment to be adaptively adjusted according to the actual size of the solar panel, ensuring that the solar panel is subjected to uniform and stable force during suction and transfer.

[0026] 3. In this invention, the extension and retraction of the output end of the electric push rod can move the fixed block and the drive rod. With the limiting of the through slot, the extension plate can drive the connecting column connected to it to rotate, thereby causing each rotating rod to start rotating, so that each connecting block can start to adjust its position automatically without manual operation.

[0027] 4. In this invention, the connecting plate and push rod can move together with the drive seat. By using the cooperation of the push rod and the guide groove, the drive frame can drive the sliding frame and the detector to move together, avoiding the detector from blocking the movement path of the drive seat. At the same time, it can also ensure that the detector can automatically reset after the drive seat is reset, without affecting the detection work. In addition, the control of the mechanical structure is more precise.

[0028] In summary, it can accurately determine whether the position is accurate and automatically calibrate the angle of the solar panel; it can also automatically adjust the position of the vacuum suction cup to ensure uniform and stable force when picking up and transferring the solar panel. This process is automatic and requires no manual intervention; in addition, it can prevent the detector from blocking the drive seat path, and the detector will automatically reset after the drive seat is reset. It uses mechanical structure to achieve precise control without affecting the detection.

[0029] It should be understood that the description in the Summary of the Invention is not intended to limit the key or essential features of the embodiments of the present invention, nor is it intended to restrict the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0030] The above and other features, advantages, and aspects of the various embodiments of the present invention will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein:

[0031] Figure 1 A schematic diagram of a solar cell testing device according to an embodiment of the present invention is shown;

[0032] Figure 2 An exploded structural schematic diagram of a solar cell testing device according to an embodiment of the present invention is shown;

[0033] Figure 3 An exploded view of the correction mechanism of a solar cell testing device according to an embodiment of the present invention is shown.

[0034] Figure 4 A bottom view of the rotary table of a solar cell testing apparatus according to an embodiment of the present invention is shown;

[0035] Figure 5 An enlarged view of point A of the solar cell testing apparatus according to an embodiment of the present invention is shown;

[0036] Figure 6 A schematic diagram of the conveying mechanism of a solar cell testing device according to an embodiment of the present invention is shown;

[0037] Figure 7 A top cross-sectional view of the conveying mechanism of a solar cell testing device according to an embodiment of the present invention is shown.

[0038] Figure 8 An exploded view of the conveying mechanism of a solar cell testing device according to an embodiment of the present invention is shown.

[0039] The attached figures are labeled as follows:

[0040] 1. Base; 2. Correction mechanism; 21. Fixed seat; 22. Mounting frame; 2201. Rangefinder; 23. Rotary table; 24. Worm gear; 25. Worm; 26. Second motor; 27. Mounting component; 28. Idler roller; 3. Bracket; 4. Lead screw; 5. First motor; 6. Guide rod; 7. Conveying mechanism; 71. Drive seat; 72. Connecting block; 73. Connecting column; 74. Rotating rod; 75. Extension plate; 76. Drive groove; 77. Electric push rod; 78. Fixed block; 79. Drive rod; 710. Through groove; 711. Cylinder; 712. Vacuum suction cup; 8. Inspection platform; 9. Slide rail; 10. Sliding frame; 11. Detector; 12. Drive frame; 13. Guide groove; 1301. Inclined groove; 1302. Straight groove; 14. Connecting plate; 15. Push rod. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0043] like Figure 1 and Figure 2As shown, the solar cell testing equipment includes: a base 1, a correction mechanism 2, a support 3, a lead screw 4, a first motor 5, a conveying mechanism 7, an inspection platform 8, and a detector 11. The support 3 is mounted on the upper surface of the base 1 and consists of four metal frames, each mounted at one of the four corners of the base 1. The metal frames are made of steel with good mechanical properties, and this layout allows the support 3 to provide stable support for the upper structure of the entire equipment. The lead screw 4 is rotatably mounted inside the support 3. The first motor 5 is mounted on the support 3, and its output end is connected to one end of the lead screw 4. Turning on the first motor 5 drives the lead screw 4 to rotate. The conveying mechanism 7 is mounted on the lead screw 4. The rotation of the lead screw 4 drives the conveying mechanism 7 to move along the axial direction of the lead screw 4. The conveying mechanism 7 is used to grasp and move the solar panels. The inspection platform 8 is mounted on the base 1 and is the main working area for various performance tests of the solar panels. The surface of the inspection platform 8 is flattened, with good flatness and smoothness to ensure that the solar panels can be placed stably. The detector 11 is mounted on the base 1, and its position corresponds to that of the inspection platform 8, ensuring that the detector 11 is directly above the inspection platform 8 during operation for accurate detection. The detector 11 is an EL electroluminescence detection device, which applies a forward bias voltage to the solar panel to make it emit infrared light. An infrared camera captures the emitted light image, and the intensity and uniformity of the light emission determine whether there are problems such as microcracks or broken grids inside the solar panel.

[0044] refer to Figure 3 and Figure 4 The correction mechanism 2 includes: a fixed base 21, a mounting frame 22, a rangefinder 2201, a rotary table 23, a worm gear 24, a worm 25, a second motor 26, a mounting component 27, and a roller 28.

[0045] The fixed base 21 is fixedly mounted on the base 1. The mounting bracket 22 is mounted on the fixed base 21. There are two rangefinders 2201. The rangefinders 2201 are HMLDM-UD100A industrial laser rangefinders. The rangefinders 2201 emit high-energy pulsed laser beams. When the laser pulses are directed at the target, they are reflected after hitting the target surface. The distance to the target object can be calculated by receiving the time of the reflected light. The two rangefinders 2201 are mounted parallel to each other and spaced apart on the mounting bracket 22 along the axial direction of the lead screw 4. Solar panels are usually in a standard rectangular shape. The two rangefinders 2201 measure the same side of the solar panel. If the data measured by the two rangefinders 2201 are the same, it means that the solar panel is positioned accurately. The rotary table 23 is rotatably mounted on the fixed base 21. The worm gear 24 is mounted on the lower surface of the rotary table 23. The worm gear 25 is rotatably mounted within the fixed base 21 and meshes with the worm wheel 24. When the worm gear 25 rotates, it drives the worm wheel 24 to rotate. Furthermore, both the worm wheel 24 and the worm gear 25 are self-locking models, ensuring a self-locking connection. When the worm gear 25 stops rotating, the worm wheel 24 cannot rotate. A second motor 26 is mounted within the fixed base 21, and its output end is connected to one end of the worm gear 25. Activating the second motor 26 causes the worm gear 25 to rotate. Several mounting components 27 are mounted on the rotary table 23, arranged symmetrically in pairs. Several idler rollers 28 are rotatably mounted between each group of mounting components 27, with each group of components 27 arranged equidistantly and continuously to ensure the idler rollers 28 are neatly arranged and stably support the solar panels. The surface of the idler rollers 28 is made of smoothed rubber to prevent damage to the solar panels. The detection position of the rangefinder 2201 corresponds to the top position of the idler roller 28, ensuring that the laser emitted by the rangefinder 2201 can accurately illuminate the solar panel placed on top of the idler roller 28.

[0046] The specific usage of the above structure is as follows: The solar panel is placed on the roller 28 using a conveyor belt or manually. The rangefinder 2201 is activated to measure the distance along the same side of the solar panel. If the data obtained by the two rangefinders 2201 differs, the second motor 26 is activated to drive the worm gear 25 to rotate, which in turn drives the worm wheel 24 and the rotary table 23 to rotate, thus adjusting the solar panel until the data obtained by the two rangefinders 2201 are the same. This structure enables automatic calibration of the solar panel and uses the cooperation of the worm wheel 24 and worm gear 25 to adjust the rotation, ensuring the solar panel is properly positioned.

[0047] In practical applications, transferring solar panels is typically achieved using vacuum suction cups. However, solar panels of different sizes have varying lengths and widths. To ensure stable gripping of the solar panels, uniform force distribution, and prevention of tipping over, the following solution is proposed. (Reference) Figure 6 , Figure 7 and Figure 8As shown, the conveying mechanism 7 includes: a drive seat 71, a connecting block 72, a connecting column 73, a rotating rod 74, an extension plate 75, a drive groove 76, an electric push rod 77, a fixing block 78, a drive rod 79, a through groove 710, a cylinder 711, and a vacuum suction cup 712. The drive seat 71 is threadedly connected to the lead screw 4. When the lead screw 4 rotates, it can drive the drive seat 71 to move along the axial direction of the lead screw 4. A guide rod 6 is installed inside the bracket 3. The guide rod 6 passes through the drive seat 71. The guide rod 6 limits the movement of the drive seat 71 and prevents it from rotating, ensuring the stability of the drive seat 71 during movement. There are several connecting blocks 72, and several connecting blocks 72 are installed in the drive seat 71. One connecting block 72 is fixedly installed, and the remaining connecting blocks 72 are slidably installed in the drive seat 71. In this embodiment, there are five connecting blocks 72. The middle connecting block 72 is fixedly installed in the drive seat 71, while the remaining connecting blocks 72 are slidably installed in the drive seat 71. The shape of the connecting blocks 72 is adapted to the inner cavity shape of the drive seat 71, and the two mutually limit each other to prevent the drive seat 71 from tilting when it moves. There are several connecting posts 73, which are rotatably installed on the tops of several connecting blocks 72. There are several rotating rods 74, which are fixedly installed on several connecting posts 73, and the ends of two adjacent rotating rods 74 are rotatably connected. Several rotating rods 74 associate each connecting post 73 and each connecting block 72 with each other. When one of the connecting posts 73 and the connecting block 72 rotates relative to each other, the distance between the connecting blocks 72 can be expanded or contracted by the transmission of the rotating rods 74. There are several cylinders 711, which are installed on the lower surface of several connecting blocks 72. Several vacuum suction cups 712 are installed at the output ends of several cylinders 711. The extension and retraction of the output ends of the cylinders 711 drive the vacuum suction cups 712 to rise and fall. The device also includes an external vacuum pump, which is connected to each vacuum suction cup 712 via a flexible hose, forming a complete vacuum adsorption system. This device is existing equipment, and any common model will suffice, so further details are omitted. When the vacuum suction cups 712 are attached to the solar panel, the vacuum pump is activated to extract air. As the air in the pump chamber is gradually extracted, a negative pressure environment is created inside the vacuum suction cups 712. The strong atmospheric pressure then firmly presses the solar panel against the vacuum suction cups 712, achieving stable and reliable gripping of the solar panel. This ensures that the solar panel will not detach or shift during subsequent handling and transfer operations, guaranteeing the efficient and smooth operation of the entire production process. A through-slot 710 is formed on the side wall of the drive base 71. An extension plate 75 is mounted on a connecting post 73 connected to a fixedly mounted connecting block 72, and the extension plate 75 extends out of the drive seat 71 through a through slot 710. When the extension plate 75 rotates, the connecting post 73 can rotate. A drive slot 76 is formed on the side of the extension plate 75 that extends out of the drive seat 71. An electric actuator 77 is mounted on the side wall of the drive seat 71. The electric actuator 77 is a self-locking electric actuator, and its output end can be locked in any position.The fixed block 78 is installed at the output end of the electric push rod 77, and the drive rod 79 is installed on the fixed block 78. The top end of the drive rod 79 is installed in the drive groove 76. When the electric push rod 77 is turned on, the fixed block 78 and the drive rod 79 move. The extension plate 75 is rotated by the mutual limiting of the drive rod 79 and the drive groove 76. At the same time, the drive rod 79 slides in the drive groove 76 to avoid interference.

[0048] The specific working principle of the above structure is as follows: The electric push rod 77 is activated, causing its output end to extend and retract. The fixed block 78 and the drive rod 79 move synchronously. Utilizing the cooperation between the drive rod 79 and the drive groove 76, the extension plate 75 rotates, causing the connected column 73 to rotate. This, in turn, causes the rotating rod 74 connected to the connecting column 73 to rotate. Since the rotating rods 74 are interconnected, they rotate synchronously, driving all connecting blocks 72 except the middle connecting block 72 to move synchronously. This causes the spacing between the connecting blocks 72 to increase or decrease synchronously, ensuring that the vacuum suction cups 712 cover the solar panel. Subsequently, the cylinders 711 are activated synchronously, causing the vacuum suction cups 712 to adhere to the solar panel. The vacuum pump is activated, allowing the vacuum suction cups 712 to stably pick up the solar panel. Then, the output end of the cylinder 711 retracts, gripping the solar panel. The first motor 5 is activated to rotate the lead screw 4, thereby causing the drive seat 71 to move along the axial direction of the lead screw 4. The guide rod 6 is used to limit the movement of the drive seat 71. Once the solar panel aligns with the inspection platform 8, the solar panel is lowered and released. The above structure can automatically adjust the position of the vacuum suction cup 712 as needed, covering the solar panel and ensuring stable force during gripping.

[0049] In this embodiment, if the detector 11 is fixedly installed, it will affect the placement and removal of the solar panel. To solve this problem, the following solution is proposed. (See reference...) Figure 1 , Figure 2 and Figure 5A linkage assembly is also installed on the base 1, which enables the detector 11 to move synchronously when the conveying mechanism 7 moves. The linkage assembly includes: a slide rail 9, a sliding frame 10, a drive frame 12, a guide groove 13, a connecting plate 14, and a push rod 15. There are two slide rails 9, which are respectively installed on the lower surface of the base 1. The sliding frame 10 is slidably installed in the slide rail 9, and the two slide rails 9 limit the sliding frame 10 to ensure stable sliding. The inner cavity of the slide rail 9 has an inverted trapezoidal cross section, and its shape is adapted to the shape of the sliding frame 10 to prevent the sliding frame 10 from derailing. The drive frame 12 is installed on the top of the sliding frame 10, and the sliding frame 10 is connected to the detector 11. The guide groove 13 is formed on the drive frame 12, and the guide groove 13 includes: an inclined groove 1301 and a straight groove 1302, and the inclined groove 1301 and the straight groove 1302 are interconnected. The connecting plate 14 is installed on the side wall of the drive seat 71, and the push rod 15 is installed on the connecting plate 14, with the end of the push rod 15 away from the connecting plate 14 installed in the guide groove 13.

[0050] The specific working principle of the above structure is as follows: When the drive base 71 starts to move, the connecting plate 14 and the push rod 15 move synchronously. The push rod 15 slides along the inclined groove 1301, causing the drive frame 12 and the sliding frame 10 to move away from the centerline of the base 1. At the same time, it drives the detector 11 to move together. When the detector 11 leaves the path of the drive base 71, the push rod 15 slides into the straight groove 1302, and the detector 11 stops moving. When the drive base 71 resets, the detector 11 also resets in the opposite direction, and the detector 11 can be used to carry out the work.

[0051] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A solar cell testing device, characterized in that, include: Base (1), correction mechanism (2), bracket (3), lead screw (4), first motor (5), conveying mechanism (7), inspection platform (8) and detector (11); The bracket (3) is mounted on the upper surface of the base (1); the lead screw (4) is rotatably mounted inside the bracket (3); the first motor (5) is mounted on the bracket (3), and the output end of the first motor (5) is connected to one end of the lead screw (4); the conveying mechanism (7) is mounted on the lead screw (4), and the rotation of the lead screw (4) can drive the conveying mechanism (7) to move along the axial direction of the lead screw (4); the inspection platform (8) is mounted on the base (1); the detector (11) is mounted on the base (1); The base (1) is also equipped with a linkage component, which enables the detector (11) to move synchronously when the conveying mechanism (7) moves; The linkage components include: slide rail (9), sliding frame (10), drive frame (12), guide groove (13), connecting plate (14) and push rod (15); There are two slide rails (9), which are respectively installed on the lower surface of the base (1); the sliding frame (10) is slidably installed in the slide rail (9); the drive frame (12) is installed on the top of the sliding frame (10), and the sliding frame (10) is connected to the detector (11); the guide groove (13) is opened on the drive frame (12); the connecting plate (14) is installed on the conveying mechanism (7); the push rod (15) is installed on the connecting plate (14), and the end of the push rod (15) away from the connecting plate (14) is installed in the guide groove (13); The guide groove (13) includes: an inclined groove (1301) and a straight groove (1302), and the inclined groove (1301) and the straight groove (1302) are interconnected; The conveying mechanism (7) includes: a drive seat (71), a connecting block (72), a connecting column (73), a rotating rod (74), an extension plate (75), a drive groove (76), an electric push rod (77), a fixing block (78), a drive rod (79), a through groove (710), a cylinder (711), and a vacuum suction cup (712). The drive seat (71) is threadedly connected to the lead screw (4); there are several connecting blocks (72), and several connecting blocks (72) are installed in the drive seat (71), one of the connecting blocks (72) is fixedly installed, and the remaining connecting blocks (72) are slidably installed in the drive seat (71); there are several connecting columns (73), which are rotatably installed on the top of several connecting blocks (72); there are several rotating rods (74), which are fixedly installed on several connecting columns (73), and the ends of two adjacent rotating rods (74) are rotatably connected; there are several cylinders (711), which are installed on the lower surface of several connecting blocks (72); there are several vacuum suction cups (712), which are installed on the lower surface of several connecting blocks (72). The cylinders (711) are mounted at their output ends; the through slot (710) is formed on the side wall of the drive seat (71); the extension plate (75) is mounted on the connecting post (73) connected to the fixedly mounted connecting block (72), and the extension plate (75) extends out of the drive seat (71) through the through slot (710); the drive groove (76) is formed on the side where the extension plate (75) extends out of the drive seat (71); the electric push rod (77) is mounted on the side wall of the drive seat (71); the fixing block (78) is mounted on the output end of the electric push rod (77); the drive rod (79) is mounted on the fixing block (78), and the top end of the drive rod (79) is mounted in the drive groove (76).

2. The solar cell testing equipment according to claim 1, characterized in that, The correction mechanism (2) includes: a fixed base (21), a mounting frame (22), a rangefinder (2201), a rotary table (23), a worm gear (24), a worm (25), a second motor (26), a mounting component (27), and a roller (28). The fixed seat (21) is fixedly installed on the base (1); the mounting frame (22) is installed on the fixed seat (21); there are two rangefinders (2201), which are installed parallel to each other and spaced apart on the mounting frame (22); the rotating table (23) is rotatably installed on the fixed seat (21); the worm gear (24) is installed on the lower surface of the rotating table (23); the worm (25) is rotatably installed in the fixed seat (21), and the worm (25) is meshed with the worm gear (24); the second motor (26) is installed in the fixed seat (21), and the output end of the second motor (26) is connected to one end of the worm (25); there are several mounting parts (27), which are respectively installed on the rotating table (23), and each pair of mounting parts (27) is a group, which are symmetrically arranged with each other; there are several idler rollers (28), which are rotatably installed between each group of mounting parts (27).

3. The solar cell testing equipment according to claim 2, characterized in that, The detection position of the rangefinder (2201) corresponds to the top position of the idler roller (28).

4. The solar cell testing equipment according to claim 3, characterized in that, A guide rod (6) is installed inside the bracket (3), and the guide rod (6) passes through the drive seat (71).

5. The solar cell testing equipment according to claim 4, characterized in that, The inner cavity of the slide (9) is set in an inverted trapezoidal shape, and its shape is adapted to the shape of the sliding frame (10).

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