A string arc correction mechanism

Abstract

This application provides a string arc correction mechanism, relating to the field of solar cell technology. It includes a crossbeam with two clamping plates symmetrically and evenly fixedly connected to one side. A crossbar is fixedly connected between the two clamping plates. Several positioning plates are evenly and linearly fixedly connected to the side of the crossbar away from the clamping plates. A conversion component is provided on the side of the positioning plates away from the crossbar. This application uses a rotating auxiliary gear to drive a cylinder connected to an internal gear ring to rotate within an arc-shaped limiting groove in an auxiliary frame plate. The arc-shaped groove actuates a guide tube located in a limiting groove, adjusting the distance between the two guide tubes in the auxiliary frame plate. This allows it to accommodate solar cells of different sizes and adjusts the position of the solar cell based on its drooping state, thus positioning the solar cell during string welding and preventing horizontal pulling of the solar cell string due to the cooling of the solder ribbon, which could lead to string arcing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of solar cells, in particular to a string arc correction mechanism. BACKGROUND

[0002] In the field of photovoltaic module manufacturing, TOPCon (tunnel oxide passivated contact) cells significantly improve the conversion efficiency of the cells due to the adoption of a tunnel oxide layer and a passivation contact structure with doped polysilicon. However, this advanced structure also imposes higher requirements on the metallization process of the cells. In order to achieve better passivation effect and current collection capability, the metallization grid lines need to be designed more densely. The profiled ribbon widely used in traditional PERC cells has been difficult to meet the design requirements of such higher-precision fine-grid of TOPCon cells due to size and shape limitations. Therefore, the industry has begun to shift to using thinner diameter round wire ribbon, which can better adapt to the super multi-busbar (SMBB) technology, effectively reducing the shading area of the cell and shortening the transmission path of the current on the fine grid, thereby reducing electrical losses.

[0003] During the manufacturing process of the cell string, the cell pieces are connected in series through the welding of the ribbon at high temperature. During the welding stage, the temperature rise in the string welding machine causes the ribbon and the cell pieces to be in a state of thermal expansion. After the welding is completed, due to the uneven cooling rate of each part, residual stress is generated inside the ribbon and shrinkage deformation occurs. This uneven deformation will pull the connected cell pieces horizontally, causing the cell pieces to shift relative to each other, which in turn causes the straightness of the cell string in the horizontal direction to decrease, ultimately forming a "string arc" phenomenon.

[0004] For example: the "automatic string arranging and correcting method, device and system" disclosed in Chinese invention patent (publication number: CN120417527A) has a design piece spacing of 1.68mm for TOPCon cell version, due to the large piece spacing and the high softness of the round wire ribbon, the pulling force between the cell pieces is dispersed and the stability is low, a slight stress will form a string arc, after the string is arranged and positioned and welded by the stacker, the cell string with string arc will be short-circuited, directly affecting the yield and qualification rate of the layer. After the staff repairs the defective string, it cannot effectively detect and correct the string arc, resulting in a large number of string arc defective strings flowing out, and the string arc defective rate of the layer EL imaging detection repair assembly is as high as 95%. The above patent can prove the defects existing in the prior art.

[0005] Therefore, we improve it and propose a string arc correction mechanism. SUMMARY

[0006] The purpose of the present application is to solve the problem of the welding cooling unevenness causing the shrinkage deformation of the ribbon, which will pull the cell pieces horizontally and cause the shift, and ultimately cause the string arc phenomenon of the cell string.

[0007] To achieve the above-mentioned objectives, the present invention provides a series arc correction mechanism to improve the aforementioned problems.

[0008] The application is as follows:

[0009] An arc correction mechanism includes a crossbeam. Two clamping plates are symmetrically and evenly fixedly connected to one side of the crossbeam. A crossbar is fixedly connected between the two clamping plates. Several positioning plates are symmetrically and evenly fixedly connected to the side of the crossbar away from the clamping plates. A transformation component is provided on the side of the positioning plates away from the crossbar. The transformation component includes a motor fixedly installed on one side of the positioning plates. A rotating cylinder is fixedly connected to the output shaft end of the motor. An auxiliary gear is provided on the outer wall of the rotating cylinder. An internal gear ring is meshed with the outer wall of the auxiliary gear. A cylinder is fixedly connected to the outer wall of the internal gear ring. Several curved support plates are circumferentially and evenly fixedly connected to the outer edge of the cylinder. An arc-shaped groove is formed on the surface of the curved support plate. A guide tube is movably connected to the inner wall of the arc-shaped groove. A buffer support component is provided at the end of the rotating cylinder away from the motor.

[0010] As a preferred technical solution of this application, a suction cup is fixedly connected to the other end of the conduit, and a battery plate is provided between the two suction cups on the same side.

[0011] As a preferred technical solution of this application, the cylinder has two arc-shaped limiting grooves symmetrically and evenly distributed at the end away from the positioning plate. An auxiliary frame plate is fixedly installed on the other side of the two arc-shaped limiting grooves. A fixing plate is provided in the middle of the auxiliary frame plate, and an adjustment component is provided on one side of the fixing plate.

[0012] As a preferred technical solution of this application, the surface of the auxiliary frame plate is provided with two limiting grooves that are symmetrically and evenly distributed, and the inner wall of the limiting groove is movably connected to the middle part of the guide tube.

[0013] As a preferred technical solution of this application, the buffer support assembly includes a fixed plate fixedly installed on one side of several auxiliary frame plates on the same side. Several corrugated airbags are fixedly connected in a straight line evenly distributed on the side of the fixed plate away from the auxiliary frame plates. A flexible airbag wall is fixedly connected to one end of the corrugated airbag away from the fixed plate. The other side of the flexible airbag wall is movably connected to the battery cell. Several air guide tubes are fixedly connected in a straight line evenly distributed on the upper part of the fixed plate away from the corrugated airbags, and one end of the air guide tube penetrates the fixed plate and enters the interior of the adjacent corrugated airbag.

[0014] As a preferred technical solution of this application, the flexible bladder wall is provided with four auxiliary rotating frames evenly distributed in a rectangle on the side near the corrugated airbag. A first connecting rod is provided on one side of the auxiliary rotating frame, and a middle frame plate is movably connected to the other end of the first connecting rod.

[0015] As a preferred technical solution of this application, the other end of the middle frame plate is movably connected to a second connecting rod, the other end of the second connecting rod is provided with a positioning and rotating frame, and the other end of the positioning and rotating frame is installed on the side surface of the fixed plate.

[0016] As a preferred technical solution of this application, the adjustment component includes an auxiliary rod disk fixedly installed in the middle of the auxiliary gear. The outer wall of the rotating shaft cylinder has a plurality of side grooves evenly distributed in a circle on the side near the motor. The plurality of side grooves are movably connected to the auxiliary rod disk. An extension rod is fixedly connected to one side of the auxiliary rod disk. A piston is fixedly connected to the end of the extension rod away from the auxiliary gear, and the piston is movably installed on the inner wall of the rotating shaft cylinder.

[0017] As a preferred technical solution of this application, a spring is fixedly connected to one end of the outer wall of the rotating shaft cylinder, and the other end of the spring is movably installed on the side of the auxiliary gear. A limiting ring is fixedly connected to the middle of the outer wall of the rotating shaft cylinder and is located at one end of the side groove. The limiting ring is movably connected to the auxiliary gear.

[0018] As a preferred technical solution of this application, the auxiliary gear is meshed with a rack on its outer wall, a slide plate is fixedly connected to one side of the rack, a slide rail is movably connected to the inner wall of the slide plate, and one side of the slide rail is fixedly installed on the surface of the positioning plate.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] In the scheme of this application:

[0021] 1. To address the issue of uneven welding cooling causing weld strip shrinkage and deformation, which can laterally pull on the battery cells and lead to misalignment, ultimately resulting in arcing in the battery string, a rotating auxiliary gear drives the cylinder connected to the internal gear ring to rotate within the arc-shaped limiting groove of the auxiliary frame plate. The arc-shaped groove moves the guide tube in the limiting slide groove, adjusting the distance between the two guide tubes in the auxiliary frame plate. This controls the suction cup to adsorb the battery cells, accommodating different sized battery cells. The suction position of the battery cells is adjusted according to their drooping state, thus positioning the battery cells during string welding and preventing horizontal pulling on the battery string caused by weld strip cooling, which could lead to arcing.

[0022] 2. To address the issue of arcing caused by the deformation and sagging of the middle section of the battery cells pulling on the interconnecting solder strips during two-point suction transfer of battery strings in existing technologies, a corrugated airbag is inflated. This airbag pushes the flexible bladder wall towards the middle of the battery cell, lifting the sagging middle section upwards to counteract the cell's own weight and internal stress. The airbag effectively supports the sagging middle section of the battery cell, providing corrective support and further correcting the arcing phenomenon.

[0023] 3. Excess gas in the corrugated airbag pushes the piston in the rotating cylinder, causing the auxiliary gear connected to the extension rod on one side of the piston to move, so that the auxiliary gear contacts the rack. The rack that meshes with it is pushed, causing the slide plate to move up and down along the slide rail. The auxiliary frame plate follows the movement, so that the adsorbed battery cells are calibrated as a whole. This allows for fine-tuning of the adsorbed battery cells, ensuring that the battery cells are on the same horizontal line, thereby improving the quality of battery string processing.

[0024] 4. Through the cooperation of the first and second connecting rods in the middle frame plate, the gas filled into the corrugated airbag pushes the flexible airbag wall away from the fixed plate, and the included angle between the first and second connecting rods is expanded to form a flat angle. The four sets of connecting rods in the corrugated airbag then expand the flexible airbag wall, so that the flexible airbag wall contacts the bottom surface of the battery cell with a flat surface, preventing the flexible airbag wall from wrinkling and contacting the battery cell, thereby affecting its corrective support effect.

[0025] 5. During the adjustment of the guide tube spacing, the motor drives the auxiliary gear to rotate via the rotating shaft, causing the internal gear ring to rotate as well. This drives the cylinder to move the guide tube within the limiting groove of the auxiliary frame plate, thereby changing the distance between the guide tubes connected to the two suction cups to accommodate battery cells of different sizes. During the fine-tuning of the battery cells, excess gas in the corrugated airbag is discharged through the rotating shaft, pushing the piston in the rotating shaft. This piston, in turn, pushes the auxiliary gear via the extension rod, causing the auxiliary gear to disengage from the internal gear ring and mesh with the rack. This provides power for the displacement of the auxiliary frame plate, allowing it to flexibly switch between the spacing adjustment function and the fine-tuning function, ensuring the convenience of the battery string transfer and processing process. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the arc correction mechanism provided in this application.

[0027] Figure 2 A partial structural diagram of the arc correction mechanism provided in this application Figure 1 .

[0028] Figure 3 A partial structural diagram of the arc correction mechanism provided in this application Figure 2 .

[0029] Figure 4 A partial structural diagram of the arc correction mechanism provided in this application Figure 3 .

[0030] Figure 5 A schematic diagram of the transformation component and buffer support component in the arc correction mechanism provided in this application.

[0031] Figure 6This is a partial cross-sectional view of the transformation component and the buffer support component in the arc correction mechanism provided in this application.

[0032] Figure 7 This is a partial exploded structural diagram of the transformation component and the adjustment component in the arc correction mechanism provided in this application.

[0033] The image shows:

[0034] 1. Horizontal frame; 2. Clamping plate frame; 3. Crossbar; 4. Positioning plate; 5. Transformation assembly; 501. Auxiliary frame plate; 502. Limiting slide groove; 503. Guide tube; 504. Curved frame plate; 505. Arc groove; 506. Cylinder; 507. Suction cup; 508. Internal gear ring; 509. Auxiliary gear; 510. Rotating shaft cylinder; 511. Positioning frame; 512. Fixed plate; 513. Arc limiting groove; 514. Motor; 6. Buffer support assembly; 601. Fixed plate; 6 02. Corrugated airbag; 603. Flexible airbag wall; 604. Air duct; 605. Auxiliary rotating frame; 606. First connecting rod; 607. Middle frame plate; 608. Second connecting rod; 609. Positioning rotating frame; 7. Adjustment assembly; 701. Slide rail; 702. Slide groove plate; 703. Positioning ring cylinder; 704. Side groove; 705. Spring; 706. Auxiliary rod plate; 707. Extension rod; 708. Piston; 709. Limiting ring; 710. Rack; 8. Battery cell. Detailed Implementation

[0035] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. 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 should fall within the scope of protection of the present invention.

[0036] As described in the background section, uneven welding cooling causes shrinkage and deformation of the weld strip, which can laterally pull the battery cells, causing them to shift and ultimately resulting in arcing in the battery string.

[0037] To address this technical problem, the present invention provides a series arc correction mechanism, which is applied in the field of solar cell technology.

[0038] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0039] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] Example 1, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 A series of arc correction mechanisms includes a crossbeam 1. Two clamping frames 2 are symmetrically and evenly fixedly connected to one side of the crossbeam 1. A crossbar 3 is fixedly connected between the two clamping frames 2 and is parallel to the crossbeam 1. Several positioning plates 4 are fixedly and evenly connected in a straight line on the side of the crossbar 3 away from the clamping frames 2. A transformation component 5 is provided on the side of the positioning plate 4 away from the crossbar 3. The transformation component 5 includes a motor 514 fixedly installed on one side of the positioning plate 4. A rotating shaft cylinder 510 is fixedly connected to the output shaft end of the motor 514. An auxiliary gear 509 is provided on the outer wall of the rotating shaft cylinder 510. An internal gear ring 508 is meshed with the outer wall of the auxiliary gear 509. A cylinder 506 is fixedly connected to the outer wall of the internal gear ring 508. Several curved frame plates 504 are fixedly and evenly distributed around the outer edge of the cylinder 506. An arc-shaped groove 505 is opened on the surface of the curved frame plate 504. A guide tube 503 is movably connected to the inner wall of the arc-shaped groove 505. During the transfer of the battery cell 8, the start motor 514 drives the rotating cylinder 510 to rotate, which in turn drives the auxiliary gear 509 installed on the outer wall of the rotating cylinder 510 to rotate as well. Since the auxiliary gear 509 meshes with the internal gear ring 508, the internal gear ring 508 is driven to rotate by the auxiliary gear 509, causing the cylinder 506 to rotate within the two arc-shaped limiting grooves 513. The curved frame plate 504 on the outer wall of the cylinder 506 moves along with it, and the arc-shaped groove 505 of the curved frame plate 504 moves the guide tube 503. The middle part of the guide tube 503 is limited in displacement direction by the limiting slide groove 502 of the auxiliary frame plate 501, so that the guide tube 503 is driven by the rotating curved frame plate 504 to move vertically along the limiting slide groove 502 of the auxiliary frame plate 501, thereby accommodating battery cells 8 of different sizes. The end of the rotating cylinder 510 away from the motor 514 is provided with a buffer support assembly 6.

[0042] The rotating auxiliary gear 509 drives the cylinder 506 connected to the internal gear ring 508 to rotate in the arc-shaped limiting groove 513 of the auxiliary frame plate 501. The arc-shaped groove 505 moves the guide tube 503 in the limiting slide groove 502, thereby adjusting the distance between the two guide tubes 503 in the auxiliary frame plate 501. This controls the suction cup 507 to adsorb the battery cell 8, thus adapting to battery cells 8 of different sizes, adjusting the position of the battery cell 8 being picked up, and positioning the battery cell 8 during the string welding process to prevent the horizontal pulling of the battery string caused by the cooling of the welding strip, which would result in the arcing phenomenon of the battery cell 8.

[0043] Furthermore, such as Figure 2 and Figure 3 As shown, a suction cup 507 is fixedly connected to the other end of the conduit 503. A battery cell 8 is provided between two suction cups 507 on the same side. The two suction cups 507 on the same vertical line are used to suction the bottom of the battery cell 8, thereby carrying out the battery cell 8.

[0044] Furthermore, such as Figure 2 , Figure 3 and Figure 5 As shown, two arc-shaped limiting grooves 513 are symmetrically and evenly distributed and movably installed on the end of the cylinder 506 away from the positioning plate 4. An auxiliary frame plate 501 is fixedly installed on the other side of the two arc-shaped limiting grooves 513. A fixed plate 512 is provided in the middle of the auxiliary frame plate 501. An adjustment component 7 is provided on one side of the fixed plate 512. The cylinder 506 is supported by the arc-shaped limiting grooves 513 on the surface of the auxiliary frame plate 501 so as to cooperate with the cylinder 506 being driven by the motor 514 to rotate.

[0045] Furthermore, such as Figure 2 and Figure 5 As shown, two limiting grooves 502 are symmetrically and evenly distributed on the surface of the auxiliary frame plate 501. The inner wall of the limiting groove 502 is movably connected to the middle of the guide tube 503. The limiting grooves 502 on the surface of the auxiliary frame plate 501 limit the guide tube 503 to restrict the displacement direction of the guide tube 503.

[0046] Example 2 further optimizes the arc correction mechanism provided in Example 1. Specifically, during the two-point adsorption and transfer of the battery string using the suction cup 507, due to the inherent flexibility of the battery cell 8, its central section is prone to sagging under gravity. This deformation further pulls on the interconnecting solder strips connecting the battery cells 8, causing the entire battery string to bend and ultimately forming an arc phenomenon. Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, the buffer support assembly 6 includes a fixed plate 601 fixedly installed on one side of several auxiliary frame plates 501 on the same side. Several corrugated airbags 602 are fixedly connected to the fixed plate 601 in a straight line on the side away from the auxiliary frame plates 501. A flexible airbag wall 603 is fixedly connected to one end of each corrugated airbag 602 away from the fixed plate 601. The other side of the flexible airbag wall 603 is movably connected to the battery cell 8. Several air guide tubes 604 are fixedly connected in a straight line above the fixed plate 601 on the side away from the corrugated airbags 602, with one end of each air guide tube 604 penetrating the fixed plate 601 and entering the interior of an adjacent corrugated airbag 602. Before the suction cup 507 picks up the battery cell 8, the air duct 604 replenishes the corrugated airbag 602 with gas. The gas blows the corrugated airbag 602 up, causing the flexible bladder wall 603 to move towards the center of the bottom surface of the battery cell 8. Since the battery cell 8 is mounted between two support structures, and during the transfer, the suction cup 507 only applies suction to two points of the battery cell 8, causing the center of the battery cell 8 to droop due to gravity. Then, the flexible bladder wall 603 is pushed by the gas. In this process, the uniform upward force applied lifts the drooping center of the battery cell 8 upward, resisting its own gravity and internal stress, thereby achieving the corrective support treatment.

[0047] After the corrugated airbag 602 is inflated, it pushes the flexible bladder wall 603 toward the middle of the battery cell 8, thereby lifting the middle of the drooping battery cell 8 upward to counteract the weight and internal stress of the battery cell 8 itself. In this way, the airbag can push the drooping middle of the battery cell 8 to lift it, thereby correcting and supporting the battery cell 8.

[0048] Furthermore, such as Figure 5 and Figure 6 As shown, four auxiliary rotating frames 605 are evenly distributed in a rectangle on the side of the flexible airbag wall 603 near the corrugated airbag 602. A first connecting rod 606 is provided on one side of each auxiliary rotating frame 605. A middle frame plate 607 is movably connected to the other end of the first connecting rod 606. A second connecting rod 608 is movably connected to the other end of the middle frame plate 607. A positioning rotating frame 609 is provided at the other end of the second connecting rod 608, and the other end of the positioning rotating frame 609 is mounted on the side surface of the fixed plate 601. The first connecting rod 606 and the second connecting rod 608 are connected to the middle frame plate 601. In conjunction with 07, the gas filling the corrugated airbag 602 pushes the flexible airbag wall 603 away from the fixed plate 601. With the assistance of the rotation of the auxiliary rotating frame 605 and the positioning rotating frame 609, the angle between the first connecting rod 606 and the second connecting rod 608 is expanded to form a flat angle. The four sets of connecting rods in the corrugated airbag 602 then expand the flexible airbag wall 603, so that the flexible airbag wall 603 contacts the bottom surface of the battery cell 8 with a flat surface, preventing the flexible airbag wall 603 from wrinkling and affecting its corrective support effect.

[0049] Furthermore, such as Figure 5 andFigure 6 As shown, the surface of the fixed plate 601 is provided with three positioning frames 511. The three positioning frames 511 are fixedly installed on both sides of the auxiliary frame plate 501, with one positioning frame 511 located on one side of the auxiliary frame plate 501 and the other two positioning frames 511 located on the other side of the auxiliary frame plate 501. The fixed plate 601 and the auxiliary frame plate 501 are connected by the three positioning frames 511 to prevent the corrugated airbag 602 from detaching from the auxiliary frame plate 501 and to increase the stability of the overall structure.

[0050] Example 3 further optimizes the arc correction mechanism provided in Examples 1 and 2, specifically, as follows: Figure 4 , Figure 5 and Figure 7 As shown, the adjustment assembly 7 includes an auxiliary rod disc 706 fixedly installed in the middle of the auxiliary gear 509. Several side grooves 704 are evenly distributed circumferentially on the outer wall of the rotating shaft cylinder 510 near the motor 514. These side grooves 704 are movably connected to the auxiliary rod disc 706. An extension rod 707 is fixedly connected to one side of the auxiliary rod disc 706. A piston 708 is fixedly connected to the end of the extension rod 707 away from the auxiliary gear 509, and the piston 708 is movably installed on the inner wall of the rotating shaft cylinder 510. After the corrugated airbag 602 inflates to a certain extent, its excess gas passes through the positioning ring cylinder 703 and enters the rotating shaft cylinder 510, pushing the piston 708 in the rotating shaft cylinder 510. On one side, the auxiliary gear 509 connected to the extension rod 707 is pushed along, and the auxiliary rod disk 706 slides in the side groove 704 on the outer wall of the rotating shaft cylinder 510, changing the position of the auxiliary gear 509 to contact the rack 710. The auxiliary gear 509 compresses the spring 705 to contract it. At this time, the motor 514 rotates, driving the auxiliary gear 509 to rotate. The rack 710 that meshes with it is pushed, causing the slide plate 702 to move up and down along the slide rail 701. The auxiliary frame plate 501 installed on the slide plate 702 drives the battery cell 8 adsorbed by the suction cup 507 to be finely adjusted, so that the adsorbed battery cells 8 are calibrated as a whole, so as to facilitate subsequent welding.

[0051] Excess gas in the corrugated airbag 602 pushes the piston 708 in the rotating cylinder 510, causing the auxiliary gear 509 connected to the extension rod 707 on one side of the piston 708 to move, so that the auxiliary gear 509 contacts the rack 710. The rack 710, which meshes with it, is pushed, causing the slide plate 702 to move up and down along the slide rail 701. The auxiliary frame plate 501 moves accordingly, so that the adsorbed battery cells 8 are calibrated as a whole. This allows for fine-tuning of the adsorbed battery cells 8, ensuring that the battery cells 8 are on the same horizontal line, thereby improving the quality of battery string processing.

[0052] Furthermore, such as Figure 5 andFigure 7 As shown, a spring 705 is fixedly connected to one end of the outer wall of the rotating shaft cylinder 510, and the other end of the spring 705 is movably installed on the side of the auxiliary gear 509. After the gas in the corrugated airbag 602 is discharged, the piston 708 in the rotating shaft cylinder 510 loses the gas pressure, and the spring 705 loses its compression at the same time. The spring 705 rebounds and pushes the auxiliary gear 509 back to its original position, meshing with the internal gear ring 508. A limit ring 709 is fixedly connected to the middle of the outer wall of the rotating shaft cylinder 510 and is located at one end of the side groove 704. The limit ring 709 is movably connected to the auxiliary gear 509, and the limit ring 709 restricts the position of the auxiliary gear 509 after rebounding, preventing the auxiliary gear 509 from disengaging from the meshing state with the internal gear ring 508.

[0053] Furthermore, such as Figure 4 , Figure 5 and Figure 7 As shown, a rack 710 is meshed with the outer wall of the auxiliary gear 509. A slide plate 702 is fixedly connected to one side of the rack 710. A slide rail 701 is movably connected to the inner wall of the slide plate 702. One side of the slide rail 701 is fixedly installed on the surface of the positioning plate 4. The rack 710 is driven by the auxiliary gear 509 to move up and down, which in turn causes the slide plate 702 to move on the slide rail 701, thereby limiting the direction of displacement of the auxiliary frame plate 501.

[0054] Furthermore, such as Figure 4 , Figure 5 and Figure 6 As shown, a fixing plate 512 is fixedly installed on the side of the slide plate 702 away from the slide rail 701. The fixing plate 512 is fixedly installed on the side of the auxiliary frame plate 501. The slide plate 702 and the auxiliary frame plate 501 are connected by the fixing plate 512 so that the slide plate 702 can drive the auxiliary frame plate 501 to move up and down.

[0055] Furthermore, such as Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the other end of the rotating shaft cylinder 510 is movably connected to a positioning ring cylinder 703, and one end of the positioning ring cylinder 703 passes through the fixing plate 601 and is located inside the corrugated airbag 602. The rotating shaft cylinder 510 and the corrugated airbag 602 of the fixing plate 601 are connected in series through the positioning ring cylinder 703, which facilitates the introduction of excess gas in the corrugated airbag 602 into the rotating shaft cylinder 510, thereby switching the structure engaged by the auxiliary gear 509.

[0056] The process of using the arc correction mechanism provided by this invention is as follows:

[0057] Working principle: Several battery cells 8 are neatly placed between two support structures with gaps, and there is a uniform interval between the battery cells 8. After completion, the robot arm drives the crossbar 1 to move below the battery cells 8, and the crossbar 3 is parallel to the battery cells 8.

[0058] Welding assistance: During the transfer of battery cell 8, the starter motor 514 drives the rotating cylinder 510 to rotate, which in turn drives the auxiliary gear 509 installed on the outer wall of the rotating cylinder 510 to rotate as well. Since the auxiliary gear 509 meshes with the internal gear ring 508, the internal gear ring 508 is driven to rotate by the auxiliary gear 509, causing the cylinder 506 to rotate within the two arc-shaped limiting grooves 513. The curved support plate 504 on the outer wall of the cylinder 506 moves accordingly, and the arc-shaped groove 505 of the curved support plate 504 moves the guide tube 503. The middle part of the guide tube 503 is limited in the direction of displacement by the limiting slide groove 502 of the auxiliary support plate 501, so that the guide tube 503... Driven by the rotating curved frame plate 504, the 03 moves vertically along the limiting slide groove 502 of the auxiliary frame plate 501. The position of the battery cell 8 is adjusted according to its drooping state to prevent excessive drooping of the middle of the battery cell 8. After adjustment, the robotic arm moves the suction cup 507 to the bottom of the battery cell 8, and the pump body is started. The guide tube 503 provides suction to the suction cup 507 to contact the battery cell 8 and adsorb the two ends of the bottom surface of the battery cell 8 to lock the battery cell 8 in the position of the two support structures. At this time, the stringer uses welding strips to connect the adjacent battery cells 8, so that several battery cells 8 are connected in series to form a battery string.

[0059] Buffer Support: After welding is completed, the robotic arm is activated to prepare for transfer. At this time, there is a certain distance between the corrugated airbag 602 and the bottom of the battery cell 8. Gas is supplied to the corrugated airbag 602 through the air guide tube 604. The gas blows the corrugated airbag 602 up, causing the flexible bag wall 603 to move towards the center of the bottom surface of the battery cell 8. Since the battery cell 8 is mounted between two support structures, and during transfer, the suction cup 507 only applies suction to two points of the battery cell 8, the center of the battery cell 8 will sag due to gravity. Then, the flexible bag wall 603 is pushed by the gas. This causes the flexible bladder wall 603 to move away from the fixed plate 601. With the assistance of the rotation of the auxiliary rotating frame 605 and the positioning rotating frame 609, the angle between the first connecting rod 606 and the second connecting rod 608 is expanded to form a flat angle. The four sets of connecting rods in the corrugated airbag 602 then expand the flexible bladder wall 603, allowing the flexible bladder wall 603 to contact the bottom surface of the battery cell 8 with a flat surface. During this process, the uniform upward force applied lifts the middle part of the drooping battery cell 8 upward to counteract its own weight and internal stress, thereby achieving the corrective support treatment.

[0060] Fine-tuning: After the corrugated airbag 602 inflates to a certain extent, its excess gas passes through the positioning ring cylinder 703 and enters the rotating shaft cylinder 510, pushing the piston 708 in the rotating shaft cylinder 510. The auxiliary gear 509, connected to the extension rod 707 on one side of the piston 708, is also pushed. The auxiliary rod disc 706 slides in the side groove 704 on the outer wall of the rotating shaft cylinder 510, changing the position of the auxiliary gear 509 so that it contacts the rack 710. The auxiliary gear 509 also compresses the spring 705, causing it to contract. After image recognition and comparison... If any battery cell 8 requires fine-tuning, the corresponding motor 514 is activated to rotate, driving the auxiliary gear 509 to rotate. The rack 710 meshing with it is pushed, causing the slide plate 702 to move up and down along the slide rail 701. The auxiliary frame plate 501 installed on the slide plate 702 drives the battery cell 8 adsorbed by the suction cup 507 to make fine adjustments, so that the adsorbed battery cells 8 are calibrated as a whole. After completion, the battery string is transferred by a robotic arm and placed under the glass with EVA film on the lower surface to prevent the string arc from rebounding.

[0061] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0062] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A series of arc correction mechanisms, comprising a crossbeam (1), wherein two clamping frames (2) are fixedly connected to one side of the crossbeam (1) in a symmetrical and uniform manner, and a crossbar (3) is fixedly connected between the two clamping frames (2), characterized in that, The crossbar (3) is fixedly connected with several positioning plates (4) in a straight line on the side away from the clamping frame (2). The positioning plate (4) is provided with a transformation component (5) on the side away from the crossbar (3). The transformation component (5) includes a motor (514) fixedly installed on one side of the positioning plate (4). The output shaft end of the motor (514) is fixedly connected to a rotating shaft cylinder (510). The outer wall of the rotating shaft cylinder (510) is provided with an auxiliary gear (509). The outer wall of the auxiliary gear (509) is meshed with an internal gear ring (508). 8) A cylinder (506) is fixedly connected to the outer wall. Several curved support plates (504) are fixedly connected to the outer edge of the cylinder (506) in a circumferentially even distribution. An arc groove (505) is opened on the surface of the curved support plate (504). A guide tube (503) is movably connected to the inner wall of the arc groove (505). A buffer support assembly (6) is provided at the end of the rotating shaft cylinder (510) away from the motor (514). A suction cup (507) is fixedly connected to the other end of the guide tube (503). A battery plate (8) is provided between two suction cups (507) on the same side. Two arc-shaped limiting grooves (513) are symmetrically and evenly distributed at one end of the cylinder (506) away from the positioning plate (4), and an auxiliary frame plate (501) is fixedly installed on the other side of the two arc-shaped limiting grooves (513). The auxiliary frame plate (501) has two symmetrically and evenly distributed limiting grooves (502) on its surface, and the inner wall of the limiting groove (502) is movably connected to the middle of the guide tube (503); The buffer support assembly (6) includes a fixed plate (601) fixedly installed on one side of several auxiliary frame plates (501) on the same side. Several corrugated airbags (602) are fixedly connected in a straight line on the side of the fixed plate (601) away from the auxiliary frame plates (501). A flexible bladder wall (603) is fixedly connected to one end of the corrugated airbag (602) away from the fixed plate (601). The other side of the flexible bladder wall (603) is movably connected to the battery cell (8). Several air guide tubes (604) are fixedly connected in a straight line on the upper side of the fixed plate (601) away from the corrugated airbag (602).

2. The arc correction mechanism according to claim 1, characterized in that, The auxiliary frame plate (501) is provided with a fixing plate (512) in the middle, and an adjustment component (7) is provided on one side of the fixing plate (512).

3. The arc correction mechanism according to claim 1, characterized in that, The flexible bladder wall (603) has four auxiliary rotating frames (605) evenly distributed in a rectangle on the side near the corrugated airbag (602). A first connecting rod (606) is provided on one side of the auxiliary rotating frame (605), and a middle frame plate (607) is movably connected to the other end of the first connecting rod (606).

4. The arc correction mechanism according to claim 3, characterized in that, The other end of the middle frame plate (607) is movably connected to a second connecting rod (608), and the other end of the second connecting rod (608) is provided with a positioning rotating frame (609), and the other end of the positioning rotating frame (609) is installed on the side surface of the fixed plate (601).

5. The arc correction mechanism according to claim 2, characterized in that, The adjustment assembly (7) includes an auxiliary rod disc (706) fixedly installed in the middle of the auxiliary gear (509). The outer wall of the rotating cylinder (510) near the motor (514) has a number of side grooves (704) evenly distributed in a circle. The number of side grooves (704) are movably connected to the auxiliary rod disc (706). An extension rod (707) is fixedly connected to one side of the auxiliary rod disc (706). A piston (708) is fixedly connected to the end of the extension rod (707) away from the auxiliary gear (509), and the piston (708) is movably installed on the inner wall of the rotating cylinder (510).

6. The arc correction mechanism according to claim 5, characterized in that, A spring (705) is fixedly connected to one end of the outer wall of the rotating shaft cylinder (510), and the other end of the spring (705) is movably installed on the side of the auxiliary gear (509). A limiting ring (709) is fixedly connected to the middle of the outer wall of the rotating shaft cylinder (510), and the limiting ring (709) is movably connected to the auxiliary gear (509).

7. The arc correction mechanism according to claim 6, characterized in that, The auxiliary gear (509) is meshed with a rack (710) on its outer wall. A slide plate (702) is fixedly connected to one side of the rack (710). A slide rail (701) is movably connected to the inner wall of the slide plate (702). One side of the slide rail (701) is fixedly installed on the surface of the positioning plate (4).

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