A uniform stacking device for topcon battery cells

Abstract

The present invention relates to the technical field of battery cell stacking, and in particular, to a uniform stacking device for topcon battery cells. The device comprises a stacking rack, a pair of clamps and a pair of clamping blocks. The present invention aligns the bottom ends of the two clamping blocks with the top ends of the two limit grooves respectively, and slowly moves the topcon battery cells vertically, so as to cause the topcon battery cells to slowly move to the inner end of the stacking groove, the clamping plate slowly moves down from top to bottom along the inner end of the side groove, and the clamping block slowly moves down from top to bottom along the inner end, so as to drive the topcon battery cells to be evenly stacked from top to bottom at the inner end of the stacking groove. At the same time, when the top end of the clamping plate is flush with the top end of the side groove, the limiting component fixes the slider, the clamping component loses the clamping function, the limiting block and the clamping block lose fixation, and the rotating connecting shaft drives the topcon battery cells to flip through the clamping plate, thereby changing the orientation of the currently stacked topcon battery cells, and causing each topcon battery cell to be evenly stacked on the same surface at the inner end of the stacking groove.

Description

Technical Field

[0001] The present invention relates to the technical field of battery cell stacking, and in particular to a uniform stacking device for topcon battery cells. Background Art

[0002] The topcon cell is a solar cell based on the principle of selective carriers. It passivates the contacts through the tunneling oxide layer, and its unit structure is an N-type silicon substrate unit. An ultra-thin silicon oxide layer is prepared on the back of the cell, and then a thin doped silicon layer is deposited. The two layers together form a passive contact structure, which effectively reduces surface recombination and metal contact recombination, providing greater space for further improving the conversion efficiency of N-PERT cells.

[0003] In the process of topcon battery cell processing, since there are many steps to go through, when transporting the topcon battery cells, a stacking device is generally used to stack them and carry them together. However, most of the existing stacking devices use boxes to randomly stack the topcon battery cells. The stability of each topcon battery cell is low and cannot meet the long-term transportation work. At the same time, the topcon battery cells are not stacked on the same side during the stacking process, resulting in the need to spend time in advance to correct the position and turn over the topcon battery cells when carrying out the next process, which greatly reduces the processing efficiency.

[0004] In order to address the above problems, a uniform stacking device for topcon battery cells is urgently needed. Summary of the invention

[0005] The object of the present invention is to provide a uniform stacking device for topcon battery sheets to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, a uniform stacking device for topcon battery cells is provided, comprising a stacking frame, a stacking groove is provided at the top, side grooves are provided on both opposite sides of the stacking frame, a clamping plate is provided at the inner end of the side groove, a slide plate is provided on one side of the clamping plate, the slide plate is kept in sliding connection with the inner end of the side groove, a connecting shaft is rotatably connected to the side of the slide plate, one end of the connecting shaft passes through the slide plate and is connected to the side of the clamping plate, a clamping opening for clamping the side of the topcon battery cell is provided on the other side of the clamping plate, the slide plate slides along the inner end of the side groove, and drives the topcon battery cells to be evenly stacked from top to bottom on the inner end of the stacking groove through the clamping plate;

[0007] Slide blocks are provided on both sides of the slide plate, slide blocks are provided on both sides of the side grooves to maintain sliding connection with the slide blocks, a limit assembly is provided on the inner side of the slide block near the top position, and limit slots are provided on the other two opposite sides of the stacking rack, and clamping blocks are provided at the inner ends of the limit slots, and the clamping blocks clamp the other two sides of the topcon battery sheet, and the limit blocks are fitted and connected on both sides of the clamping blocks, and the inner ends of the two limit blocks are provided with a clamping assembly for fixing the limit blocks and the clamping blocks;

[0008] When the top of the slider is flush with the top of the inner side of the slide groove, the limit assembly fixes the position of the slider, the clamping assembly loses its clamping function, the limit block and the clamping block lose fixation, and the connecting shaft is rotated to drive the topcon battery cell to flip through the clamping plate, so that the topcon battery cells are evenly stacked on the same surface at the inner end of the stacking groove.

[0009] As a further improvement of the present technical solution, the limiting assembly includes a wedge block, both sides of the end of the wedge block are connected to correction springs, an inner groove is opened on the inner side of the slide groove near the top position, the wedge block is slidably connected to the inner end of the inner groove, the correction spring is connected to the inner wall of the inner groove, and a side opening is opened in the middle position of the side of the slider to be plugged into the end of the wedge block, and the wedge block is inserted into or detached from the inner end of the side opening to achieve the fixing and separation functions between the slide plate and the side groove.

[0010] As a further improvement of the present technical solution, the clamping assembly includes a plug post, which is slidably connected to the inner end of the limit block, a return spring is sleeved on the outer side of the plug post, and the return spring is located at the inner end of the limit block. The clamp block is in a T-shaped structure, and limit holes are provided on both sides of the clamp block. The two plug posts are respectively fitted with the two sides of the clamp block. In the absence of external force, the end of the plug post extends out of the side of the limit block away from the limit hole. When the clamp block slides along the inner end of the limit groove, the end of the plug post is subjected to the pressure of the inner wall of the limit groove, driving the plug post to move toward the inner end of the limit block and squeezing the return spring, prompting the other end of the plug post to extend into the inner end of the limit hole. Card holes that are plug-in-matched with the end of the plug post are provided on both sides of the limit groove near the top.

[0011] As a further improvement of the technical solution, a connector is provided at the end of the plug post, and the connector is an arc-shaped structure.

[0012] As a further improvement of the technical solution, a plurality of slide grooves are provided on both sides of the inner end of the side groove, a plurality of balls are rotatably connected to the inner end of the slide groove, and the ends of the balls are in rolling connection with the side surfaces of the slider.

[0013] As a further improvement of the technical solution, a turntable is coaxially connected to the end of the connecting shaft.

[0014] As a further improvement of the technical solution, a pair of limit columns are provided on both upper and lower sides of the slide plate, and one end of the limit column protrudes from the outer end of the slide plate.

[0015] As a further improvement of the technical solution, the limiting column is plugged into the inner end of the slide plate, a buffer spring is sleeved on the outer side of the limiting column, and the buffer spring is located on the inner side of the slide plate.

[0016] As a further improvement of the technical solution, a plurality of grooves are provided on both upper and lower sides of the inner end of the clamp, and the grooves are evenly distributed on the inner side of the clamp.

[0017] As a further improvement of the technical solution, a top groove is provided on the top of the clamping block, a limiting rod is provided at the inner end of the limiting groove, and the limiting rod is plugged into the inner end of the top groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the uniform stacking device of the topcon battery cells, the bottom ends of the two clamping blocks are respectively aligned with the top ends of the two limit grooves, and the topcon battery cells are slowly moved vertically, so that the topcon battery cells are slowly moved to the inner end of the stacking groove, and the clamping plate slowly moves down from top to bottom along the inner end of the side groove, and the clamping block slowly moves down from top to bottom along the inner end, driving the topcon battery cells to be evenly stacked from top to bottom at the inner end of the stacking groove. At the same time, when the top end of the clamping plate is flush with the top end of the side groove, the limiting component fixes the slider, the clamping component loses its clamping function, the limiting block and the clamping block lose fixation, and the rotating connecting shaft drives the topcon battery cells to flip through the clamping plate, changing the direction of the currently stacked topcon battery cells, so that each topcon battery cell can be evenly stacked on the same surface at the inner end of the stacking groove.

[0020] 2. In the uniform stacking device of the topcon battery cell, the contact area between the slider and the slide groove is reduced by the provided ball bearings, and the static friction force generated between the slider and the slide groove is converted into sliding friction force, thereby reducing the obstruction generated during the sliding process of the slider and improving the sliding efficiency of the slider.

[0021] 3. In the uniform stacking device of the topcon battery cell, the roughness of the inner side of the clamp is increased by setting grooves, thereby increasing the friction force at the contact position between the clamp and the topcon battery cell, and this friction force is used to maintain the connection between the clamp and the topcon battery cell, increase the friction force at the contact position between the clamp and the topcon battery cell, that is, increase the connection stability between the two, and avoid the separation of the clamp and the topcon battery cell during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a disassembled diagram of the overall structure of the present invention;

[0024] Figure 3 It is a cross-sectional view of the stacking rack structure of the present invention;

[0025] Figure 4 For the present invention Figure 3 A local enlarged view of point A;

[0026] Figure 5 It is a disassembled diagram of the splint structure of the present invention;

[0027] Figure 6 For the present invention Figure 5 A partial enlarged view of point B;

[0028] Figure 7 It is a split cross-sectional view of the clamping block structure of the present invention.

[0029] The meaning of each number in the figure is:

[0030] 10. Stacking rack; 110. Side slot; 111. Slide slot; 112. Inner slot; 113. Wedge block; 114. Ball bearing; 120. Limiting slot; 121. Clamping hole;

[0031] 20, clamping plate; 210, sliding plate; 211, sliding block; 212, side opening; 220, clamping opening; 221, groove; 230, connecting shaft; 231, rotating disk; 240, limiting column; 241, buffer spring;

[0032] 30. Clamping block; 310. Limiting block; 320. Limiting hole; 330. Inserting column; 331. Return spring. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] See also Figure 1-Figure 7 As shown, a uniform stacking device for topcon battery cells is provided, including a stacking rack 10, a stacking groove is provided at the top, side grooves 110 are provided on both opposite sides of the stacking rack 10, a clamping plate 20 is provided at the inner end of the side groove 110, a slide plate 210 is provided at one side of the clamping plate 20, the slide plate 210 is kept in sliding connection with the inner end of the side groove 110, a connecting shaft 230 is rotatably connected to the side of the slide plate 210, one end of the connecting shaft 230 passes through the slide plate 210 and is connected to the side of the clamping plate 20, a clamping opening 220 for clamping the side of the topcon battery cell is provided on the other side of the clamping plate 20, the slide plate 210 slides along the inner end of the side groove 110, and drives the topcon battery cells to be uniformly stacked from top to bottom on the inner end of the stacking groove through the clamping plate 20;

[0036] Slide blocks 211 are provided on both sides of the slide plate 210, and slide grooves 111 are provided on both sides of the side grooves 110 to maintain sliding connection with the slide blocks 211. A limit assembly is provided on the inner side of the slide grooves 111 near the top. The other two opposite sides of the stacking rack 10 are provided with limit grooves 120, and clamping blocks 30 are provided at the inner ends of the limit grooves 120. The clamping blocks 30 clamp the other two sides of the topcon battery sheet. The limit blocks 310 are fitted and connected on both sides of the clamping blocks 30, and the inner ends of the two limit blocks 310 are provided with a clamping assembly for fixing the limit blocks 310 and the clamping blocks 30;

[0037] When the top of the slider 211 is flush with the top of the inner side of the slide groove 111, the limit assembly fixes the position of the slide plate 210, the clamping assembly loses its clamping function, the limit block 310 and the clamping block 30 lose their fixation, and the rotating connecting shaft 230 drives the topcon battery cell to flip through the clamping plate 20, so that the topcon battery cells are evenly stacked on the same surface at the inner end of the stacking groove.

[0038] When used specifically, the clamping process is as follows: first, the two clamps 20 are respectively moved to the two opposite sides of the topcon battery cell, the position of the clamps 20 is adjusted to align the clamping opening 220 with the side of the topcon battery cell, the clamping opening 220 is horizontally slid along the direction of the topcon battery cell, and the clamping opening 220 is gradually clamped on the side of the topcon battery cell until the inner side of the clamping opening 220 is in contact with the side of the topcon battery cell, and then the two clamping blocks 30 are moved to the other two opposite sides of the topcon battery cell, and the moving clamping blocks 30 are clamped with the side of the topcon battery cell;

[0039] Stacking process: lift the entire topcon battery cell and move it to the top of the stacking rack 10. At this time, the fixed ends of the two clamps 20 are aligned with the top of the two side grooves 110 respectively, and the bottom ends of the two clamps 30 are aligned with the top of the two limit grooves 120 respectively. Slowly move the topcon battery cell vertically to cause the topcon battery cell to slowly move to the inner end of the stacking groove. The clamp 20 slowly moves down from top to bottom along the inner end of the side groove 110, and the clamp 30 slowly moves down from top to bottom along the inner end, driving the topcon battery cells to be evenly stacked from top to bottom at the inner end of the stacking groove.

[0040] It is worth noting that during the stacking process, when the topcon battery cell is on a different side from the installed topcon battery cell, the clamp 20 can be pushed upward to the top of the side groove 110. When the top of the clamp 20 is flush with the top of the inner side of the side groove 110, the limit assembly fixes the slider 211, and the clamping assembly loses its clamping function. The limit block 310 and the clamping block 30 lose their fixation, and the rotating connecting shaft 230 drives the topcon battery cell to flip through the clamp 20, changing the orientation of the currently stacked topcon battery cells, so that each topcon battery cell can be evenly stacked on the same side at the inner end of the stacking groove.

[0041] In addition, the limiting component includes a wedge block 113, and correction springs are connected to both sides of the end of the wedge block 113. An inner groove 112 is opened on the inner side of the slide groove 111 near the top. The wedge block 113 is slidably connected to the inner end of the inner groove 112, and the correction spring is connected to the inner wall of the inner groove 112. A side opening 212 that is plugged into the end of the wedge block 113 is opened in the middle position of the side of the slider 211. The wedge block 113 is inserted into or detached from the inner end of the side opening 212 to achieve the fixing and separation functions between the slide plate 210 and the side groove 110. When the topcon battery cell is not on the same side as the installed topcon battery cell, the clamping plate 20 is moved. When the top of the slide plate 210 contacts the bottom of the wedge block 113, the pressure applied by the slide plate 210 causes the wedge block 113 to move toward the inner end of the inner groove 112 and compress the two correction springs. When the clamping plate 20 is aligned with the top of the two side grooves 110, the side opening 212 just moves to a position aligned with the end of the wedge block 113. The two correction springs lose external force and drive the wedge block 113 to extend out of the inner end of the inner groove 112 in the opposite direction, causing the end of the wedge block 113 to be stuck into the corresponding inner end of the side opening 212, and the slide plate 210 is fixed by the wedge block 113. At this time, the connecting shaft 230 is rotated. There is no need to fix the position of the slide plate 210 at the same time. The clamping plate 20 can be directly driven to rotate, and the topcon battery cell can be indirectly driven to flip over through the clamping plate 20, so as to realize the flipping of the topcon battery cell and enable each topcon battery cell to be evenly stacked on the same side at the inner end of the stacking groove.

[0042] When the locking cam 330 is in the unlocking state, the locking cam 330 is in the unlocking state, and the locking cam 330 is in the unlocking state. When the clamping block 30 slides along the inner end of the limiting groove 120, the end of the plug post 330 is subjected to the pressure of the inner wall of the limiting groove 120, driving the plug post 330 to move toward the inner end of the limiting block 310 and squeezing the return spring 331, causing the entire return spring 331 to be in a compressed state. At this time, the other end of the plug post 330 extends into the inner end of the limiting hole 320, and the fixing work between the limiting block 310 and the clamping block 30 is completed by the plug post 330. When the clamping plate 20 is aligned with the When the top ends of the grooves 110 on both sides are aligned, the end of the pin 330 just moves to the opening position of the card hole 121, the pin 330 loses the inner wall pressure, and the reset spring 331 loses the external force, which will drive one end of the pin 330 to insert into the inner end of the card hole 121, and the other end of the pin 330 slides out of the inner end of the limit hole 320, and the connection between the clamping block 30 and the limit block 310 is lost again. At this time, the connecting shaft 230 is rotated to indirectly drive the topcon battery cell to flip through the clamping plate 20, and the topcon battery cell drives the two clamping blocks 30 to rotate to complete the flipping of the topcon battery cell.

[0043] Furthermore, a connector is provided at the end of the plug post 330, and the connector is an arc-shaped structure. When in use, after the plug post 330 is subjected to the pressure applied by the limit groove 120, the pressure increases the friction between the contact surface of the plug post 330 and the limit groove 120, and this friction is always opposite to the sliding direction of the limit block 310, hindering the sliding work of the limit block 310. At this time, the contact area between the end of the plug post 330 and the inner wall of the limit groove 120 is reduced by the provided connector. The contact area is proportional to the friction force. Reducing the contact area means reducing the friction force, thereby improving the sliding efficiency of the limit block 310.

[0044] Specifically, a plurality of slide grooves 111 are provided on both sides of the inner end of the side groove 110, and a plurality of balls 114 are rotatably connected to the inner end of the slide groove 111, and the ends of the balls 114 are in rolling connection with the side of the slider 211. When in use, the contact area between the slider 211 and the slide groove 111 is reduced by the provided balls 114, and the static friction force generated between the slider 211 and the slide groove 111 is converted into sliding friction force, thereby reducing the obstacles generated during the sliding process of the slider 211 and improving the sliding efficiency of the slider 211.

[0045] In addition, a turntable 231 is coaxially connected to the end of the connecting shaft 230. When in use, the end of the connecting shaft 230 needs to be held to rotate, but the end of the connecting shaft 230 is a cylindrical structure with a relatively smooth outer side, and it is easy to slip during the rotation. The turntable 231 is provided to provide an operator with a force point, and the operator can indirectly drive the connecting shaft 230 to rotate by rotating the turntable 231, thereby avoiding the occurrence of slippage and improving the rotation efficiency of the connecting shaft 230.

[0046] Furthermore, a pair of limiting posts 240 are provided on both the upper and lower sides of the slide plate 210, and one end of the limiting post 240 protrudes from the outer end of the slide plate 210. In specific use, during the uniform stacking of topcon battery cells, the limiting post 240 at the bottom of the previous slide plate 210 is aligned with the limiting post 240 at the top of the next slide plate 210, and the two limiting posts 240 fit together, so as to form a certain gap between the two slide plates 210, thereby preventing the two topcon battery cells from fitting too close to each other. When the stacking rack 10 slides, the contact surfaces of the two topcon battery cells rub against each other, which is easy to cause wear and tear, affecting the later use effect of the topcon battery cells.

[0047] Furthermore, the limiting column 240 is plugged into the inner end of the slide 210, and a buffer spring 241 is sleeved on the outer side of the limiting column 240, and the buffer spring 241 is located on the inner side of the slide 210. In specific use, when the limiting column 240 at the bottom end of the previous slide 210 is aligned with the limiting column 240 at the top end of the next slide 210, the two limiting columns 240 fit each other, causing the buffer spring 241 on the outer side of the limiting column 240 to compress toward the inner end of the slide 210, and the buffer spring 241 compresses toward the inner end of the slide 210 to provide a reverse force to the limiting column 240, so as to overcome the pressure generated by the collision of the limiting column 240 and play a buffering role.

[0048] In addition, a plurality of grooves 221 are provided on both the upper and lower sides of the inner end of the clamp 220, and the grooves 221 are evenly distributed on the inner side of the clamp 220. When in use, the grooves 221 are provided to increase the roughness of the inner side of the clamp 220, thereby increasing the friction force at the contact position between the clamp 220 and the topcon battery cell, and this friction force is used to maintain the connection between the clamp 220 and the topcon battery cell, increase the friction force at the contact position between the clamp 220 and the topcon battery cell, that is, increase the connection stability between the two, and prevent the clamp 220 and the topcon battery cell from being separated during the rotation process.

[0049] In addition, a top groove is provided at the top of the clamp block 30, and a limiting rod is provided at the inner end of the limiting groove 120, and the limiting rod is plugged into the inner end of the top groove. When in use, when the clamp block 30 slides along the inner end of the limiting groove 120, the top groove moves downward through the limiting rod, and the clamp block 30 is limited in position by the limiting rod to prevent the clamp block 30 from being offset during movement.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A uniform stacking device for topcon battery cells, comprising a stacking rack (10) with a stacking slot at the top, characterized in that: The stacking rack (10) is provided with side grooves (110) on two opposite sides, a clamping plate (20) is provided at the inner end of the side groove (110), a slide plate (210) is provided on one side of the clamping plate (20), the slide plate (210) is slidably connected to the inner end of the side groove (110), a connecting shaft (230) is rotatably connected to the side of the slide plate (210), one end of the connecting shaft (230) passes through the slide plate (210) and is connected to the side of the clamping plate (20), a clamping opening (220) for clamping the side of the topcon battery cell is provided on the other side of the clamping plate (20), the slide plate (210) slides along the inner end of the side groove (110), and drives the topcon battery cells to be evenly stacked from top to bottom on the inner end of the stacking groove through the clamping plate (20); Slide blocks (211) are provided on both sides of the slide plate (210), slide grooves (111) are provided on both sides of the side grooves (110) and are slidably connected to the slide blocks (211), and a limiting component is provided on the inner side of the slide grooves (111) near the top end, and limiting grooves (120) are provided on the other two opposite sides of the stacking rack (10), and clamping blocks (30) are provided at the inner ends of the limiting grooves (120), and the clamping blocks (30) clamp the other two sides of the topcon battery sheet, and the limiting blocks (310) are both fitted and connected on both sides of the clamping blocks (30), and the inner ends of the two limiting blocks (310) are provided with a clamping component for fixing the limiting blocks (310) and the clamping blocks (30); When the top of the slider (211) is flush with the top of the inner side of the slide groove (111), the limit assembly fixes the position of the slider (210), the clamping assembly loses its clamping function, the limit block (310) loses its fixation with the clamping block (30), and the connecting shaft (230) is rotated to drive the topcon battery cells to flip through the clamping plate (20), so that the topcon battery cells are evenly stacked on the same surface at the inner end of the stacking groove.

2. The uniform stacking device of topcon cells according to claim 1, characterized in that: The limiting assembly comprises a wedge block (113), both sides of the end of the wedge block (113) are connected to correction springs, an inner groove (112) is provided on the inner side of the slide groove (111) near the top, the wedge block (113) is slidably connected to the inner end of the inner groove (112), the correction spring is connected to the inner wall of the inner groove (112), and a side opening (212) is provided in the middle position of the side of the slider (211) to be plugged into the end of the wedge block (113), and the wedge block (113) is inserted into or detached from the inner end of the side opening (212), so as to realize the fixing and separation functions between the slide plate (210) and the side groove (110).

3. The uniform stacking device of topcon cells according to claim 2, characterized in that: The clamping assembly comprises a plug post (330), the plug post (330) is slidably connected to the inner end of the limit block (310), a reset spring (331) is sleeved on the outer side of the plug post (330), and the reset spring (331) is located at the inner end of the limit block (310), the clamping block (30) is T-shaped, and both sides of the clamping block (30) are provided with limit holes (320), and the two plug posts (330) are respectively fitted with the two sides of the clamping block (30), and when there is no external force, the end of the plug post (330) extends out of the limit block (310) away from the limit block (310). On one side of the limiting hole (320), when the clamping block (30) slides along the inner end of the limiting groove (120), the end of the plug post (330) is subjected to the pressure of the inner wall of the limiting groove (120), driving the plug post (330) to move toward the inner end of the limiting block (310), and squeezing the return spring (331), so that the other end of the plug post (330) extends into the inner end of the limiting hole (320), and the limiting groove (120) is provided with a clamping hole (121) on both sides near the top position to maintain plug-in cooperation with the end of the plug post (330).

4. The uniform stacking device of topcon battery sheets according to claim 3, characterized in that: A connector is provided at the end of the plug post (330), and the connector is an arc-shaped structure.

5. The uniform stacking device of topcon battery sheets according to claim 2, characterized in that: A plurality of slide grooves (111) are provided on both sides of the inner end of the side groove (110), and a plurality of balls (114) are rotatably connected to the inner ends of the slide grooves (111), and the ends of the balls (114) are kept in rolling connection with the side surfaces of the slider (211).

6. The uniform stacking device of topcon cells according to claim 1, characterized in that: The end of the connecting shaft (230) is coaxially connected to a rotating disk (231).

7. The uniform stacking device of topcon cells according to claim 2, characterized in that: A pair of limiting columns (240) are provided on both upper and lower sides of the slide plate (210), and one end of the limiting column (240) protrudes from the outer end of the slide plate (210).

8. The uniform stacking device of topcon cells according to claim 7, characterized in that: The limiting column (240) is plugged into and matched with the inner end of the slide plate (210); a buffer spring (241) is sleeved on the outer side of the limiting column (240); and the buffer spring (241) is located on the inner side of the slide plate (210).

9. The uniform stacking device of topcon cells according to claim 1, characterized in that: A plurality of grooves (221) are provided on both upper and lower sides of the inner end of the clamping opening (220), and the grooves (221) are evenly distributed on the inner side of the clamping opening (220).

10. The uniform stacking device of topcon cells according to claim 3, characterized in that: A top groove is formed at the top of the clamp block (30), and a limiting rod is provided at the inner end of the limiting groove (120), wherein the limiting rod is plugged into the inner end of the top groove.

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