Flexible string welding transmission device for multi-master grid solar cell production line

Abstract

This utility model discloses a flexible stringing transfer device for multi-busbar solar cell production lines, relating to the field of solar cell manufacturing technology. The device includes a conveyor table, a mounting frame fixedly mounted on the conveyor table and located at the stringing equipment, and a positioning mechanism mounted on the mounting frame. When the positioning mechanism is activated, the solar cells are positioned on the conveyor table. The device uses an electric cylinder to move the connecting frame downwards. When the roller contacts the surface of the conveyor table, the driven frame is limited. During subsequent movement of the connecting frame, the movable column extends into the driven frame. At this time, the connecting rod rotates due to the change in position, pulling the driven rod to move within the driven frame, causing the positioning plates to move closer together and positioning the solar panels. This facilitates subsequent flexible stringing of the solar panels and improves installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of solar cell production technology, specifically a flexible string welding transmission device for multi-busbar solar cell production lines. Background Technology

[0002] Multi-busbar solar cells are high-efficiency products that optimize the electrode structure based on traditional solar cells. The core principle is to increase the current collection efficiency by increasing the number of busbars. This is a mainstream upgrade solution in the photovoltaic industry, characterized by high current collection efficiency and low power loss, making it a mainstream product in the photovoltaic industry. Stringing is the core process in solar cell module encapsulation. Simply put, it involves connecting multiple solar cells into a string using solder ribbons, forming a core unit capable of outputting a stable current. Stringing typically needs to be performed on a transmission device to ensure smooth cell transport and precise alignment of the solder ribbons with the busbars.

[0003] Currently, most transmission devices have relatively simple structures. During the transmission process, the transmission devices are prone to vibration due to external influences. In this case, the solar cells located on the transmission device are prone to misalignment. During automated stringing, welding misalignment is likely to occur, requiring manual correction before welding, which reduces the stringing efficiency of the solar cells. Utility Model Content

[0004] The purpose of this invention is to provide a flexible string welding transmission device for multi-busbar solar cell production lines to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flexible string welding transmission device for a multi-busbar solar cell production line, comprising: a conveyor table, and further comprising: a mounting frame, fixedly mounted on the conveyor table, the mounting frame being located at the string welding equipment; a positioning mechanism, mounted on the mounting frame, wherein the positioning mechanism is configured to position the solar cells on the conveyor table during operation; the positioning mechanism comprises: an electric cylinder, fixedly mounted on the mounting frame, the telescopic end of the electric cylinder passing through the top of the mounting frame; a connecting frame, disposed inside the mounting frame, the top of the connecting frame being fixedly mounted to the telescopic end of the electric cylinder; a driven frame, slidably disposed inside the connecting frame, the driven frame being capable of moving in the vertical direction; a movable column, fixedly disposed on the top surface inside the connecting frame, the outer surface of the connecting frame being slidably disposed with the inside of the driven frame; a driven rod, slidably disposed inside the driven frame, the driven rod being capable of moving in the horizontal direction; and a connecting rod, rotatably disposed on the movable column, the other end of the connecting rod being rotatably disposed with the surface of the driven rod.

[0006] Preferably, it further includes: a mounting plate, fixedly mounted on the conveyor table; a cylinder, fixedly mounted on one side of the mounting plate, with a movable plate fixedly mounted on the telescopic end of the cylinder; a calibration plate, mounted on one side of the movable plate; a rotating belt, rotatably mounted on the calibration plate; a limiting frame, fixedly mounted on one side of the calibration plate, with the outer surface of the limiting frame slidingly mounted inside the movable plate; and a pressure spring, fixedly mounted on the calibration plate, with the other end of the pressure spring abutting against the surface of the movable plate.

[0007] Preferably, it further includes: a guide rod, fixedly disposed on one side of the movable plate, the outer surface of the guide rod being slidably disposed with respect to the interior of the mounting plate; and a limiting block, fixedly disposed at one end of the guide rod.

[0008] Preferably, it further includes: a positioning plate, fixedly disposed at the bottom end of the driven rod; and a roller, fixedly disposed at the bottom end of the driven rod, wherein when the roller contacts the surface of the conveyor table, there is a gap between the positioning plate and the conveyor table.

[0009] Preferably, it further includes: a guide through hole, which is formed through the driven frame, and the outer surface of the driven rod is slidably disposed with the inner surface of the guide through hole; and a rubber pad, which is fixedly disposed on the positioning surface of the positioning plate.

[0010] Preferably, it further includes: a return spring, sleeved on the movable column, the two ends of the return spring being fixedly disposed on the surfaces of the connecting frame and the driven frame, respectively.

[0011] Preferably, it further includes: a limiting strip, fixedly disposed on both sides of the driven frame; and a limiting groove, formed on the inner side wall of the connecting frame, wherein the outer surface of the limiting strip and the inner surface of the limiting groove are slidably disposed.

[0012] This utility model provides a flexible string welding transmission device for multi-busbar solar cell production lines, which has the following advantages: (1) The present invention uses an electric cylinder to drive the connecting frame to move downward. When the roller contacts the surface of the conveyor table, the driven frame is limited. During the subsequent movement of the connecting frame, the movable column goes into the interior of the driven frame. At this time, the connecting rod rotates due to the change in position and pulls the driven rod to move in the driven frame, so that the positioning plates are close to each other and the battery panel is positioned, which facilitates the subsequent flexible string welding of the battery panel and improves the installation efficiency.

[0013] (2) This utility model uses a cylinder to push the movable plate to move horizontally, so that the rotating plate of the calibration plate contacts the side of the battery panel. Under the subsequent push of the cylinder, the calibration plate pushes the battery panel to move on the conveyor table to calibrate the battery panel, so that the position of the battery panel is more accurate when it is wired. Furthermore, by setting the limit frame and the pressure spring, the battery panel can be flexibly pressed, avoiding the situation of the battery panel being crushed, and improving the calibration effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the mounting bracket of this utility model; Figure 3 This is an exploded view of the positioning mechanism of this utility model; Figure 4 This is an exploded view of the structure between the cylinder and the calibration plate of this utility model.

[0015] In the diagram: 1. Conveyor table; 2. Mounting frame; 3. Positioning mechanism; 31. Electric cylinder; 32. Connecting frame; 33. Movable column; 34. Driven frame; 35. Driven rod; 36. Connecting rod; 37. Positioning plate; 4. Guide through hole; 5. Rubber pad; 6. Roller; 7. Limiting strip; 8. Limiting groove; 9. Return spring; 10. Mounting plate; 11. Movable plate; 12. Alignment plate; 13. Rotating belt; 14. Limiting frame; 15. Compression spring; 16. Guide rod; 17. Limiting block; 18. Cylinder. Detailed Implementation

[0016] 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.

[0017] This utility model provides a technical solution: Referring to 1-4, in this embodiment, the flexible string welding transmission device for multi-busbar solar cell production line includes: a conveyor table 1, which is made of stainless steel, with a polished surface and a polyurethane anti-slip pad to ensure stable transmission of the cells and prevent surface scratches; a mounting frame 2, fixedly mounted on the conveyor table 1, located at the string welding equipment, which is a welded aluminum alloy profile structure with an anodized surface, lightweight and high strength, and fixed to the conveyor table 1 by expansion bolts; a positioning mechanism 3, mounted on the mounting frame 2, which, when in operation, positions the cells on the conveyor table 1; the positioning mechanism 3 includes: an electric cylinder 31, fixedly mounted on the mounting frame 2, with its telescopic end penetrating the top of the mounting frame 2, and the electric cylinder 31 being a servo cylinder; and a connecting frame 32, located inside the mounting frame 2. The top of the connecting frame 32 is fixedly installed to the telescopic end of the electric cylinder 31; the driven frame 34 is slidably installed inside the connecting frame 32 and can move vertically. The connecting frame 32 is welded from steel plate and coated with anti-corrosion paint. The internal space is reserved to accommodate the sliding of the driven frame 34; the movable column 33 is fixedly installed on the top surface inside the connecting frame 32 and slidably installed between the outer surface of the connecting frame 32 and the inside of the driven frame 34. The movable column 33 is made of stainless steel and is welded and fixed to the connecting frame 32; the driven rod 35 is slidably installed inside the driven frame 34 and can move horizontally. The driven rod 35 is made of stainless steel and has a smooth, burr-free surface; the connecting rod 36 is rotatably installed on the movable column 33 and the other end of the connecting rod 36 is rotatably installed on the surface of the driven rod 35. The connecting rod 36 is made of stainless steel and its two ends are hinged to the movable column 33 and the driven rod 35 through spherical bearings.

[0018] It also includes: a mounting plate 10, fixedly mounted on the conveyor table 1, the mounting plate 10 being made of stainless steel and fixed to the conveyor table 1 by bolts; a cylinder 18, fixedly mounted on one side of the mounting plate 10, with a movable plate 11 fixedly mounted on the telescopic end of the cylinder 18, the movable plate 11 being made of aluminum alloy with anodized surface treatment; a calibration plate 12, mounted on one side of the movable plate 11, the calibration plate 12 being made of engineering plastic, lightweight and not easily damaging the battery cells; a rotating belt 13, rotatably mounted on the calibration plate 12, the rotating belt 13 being made of polyurethane, with a smooth surface and internal micro-bearings to reduce friction with the battery cells during calibration; a limiting frame 14, fixedly mounted on one side of the calibration plate 12, the outer surface of the limiting frame 14 slidingly mounted inside the movable plate 11; and a pressure spring 15, fixedly mounted on the calibration plate 12, the other end of the pressure spring 15 abutting against the surface of the movable plate 11, the pressure spring 15 being a stainless steel spring providing flexible pressure to avoid damaging the battery cells.

[0019] It also includes: a guide rod 16, which is fixedly installed on one side of the movable plate 11. The outer surface of the guide rod 16 is slidably installed with the inside of the mounting plate 10. The guide rod 16 is made of stainless steel and the surface is chrome-plated to ensure accurate horizontal movement of the movable plate 11; and a limiting block 17, which is fixedly installed at one end of the guide rod 16. The limiting block 17 is made of stainless steel and is fixed to the guide rod 16 by threads to prevent the guide rod 16 from coming out of the mounting plate 10 and to ensure structural safety.

[0020] It also includes: a positioning plate 37, which is fixedly installed at the bottom of the driven rod 35. The positioning plate 37 is made of aluminum alloy and the positioning surface is milled to fit the edge positioning of the battery cell; and a roller 6, which is fixedly installed at the bottom of the driven rod 35. When the roller 6 contacts the surface of the conveyor table 1, there is a gap between the positioning plate 37 and the conveyor table 1. The roller 6 is made of polyurethane and is connected to the driven rod 35 through a miniature bearing. It rotates smoothly without jamming and avoids friction between the positioning plate 37 and the conveyor table 1 before positioning.

[0021] It also includes: a guide hole 4, which is opened through the driven frame 34. The outer surface of the driven rod 35 is slidably set with the inner surface of the guide hole 4. The guide hole 4 is a circular hole with a polished inner wall to ensure that the driven rod 35 slides smoothly horizontally; a rubber pad 5, which is fixedly set on the positioning surface of the positioning plate 37. The rubber pad 5 is made of silicone and has anti-slip texture on the surface to ensure firm positioning and avoid scratching the edge of the battery cell.

[0022] It also includes: a return spring 9, which is sleeved on the movable column 33. The two ends of the return spring 9 are fixedly set to the surfaces of the connecting frame 32 and the driven frame 34, respectively. The return spring 9 is a stainless steel spring. In its natural state, it pushes the driven frame 34 to the upper position inside the connecting frame 32. After positioning is completed, it can drive the driven frame 34 to quickly return to its original position, thereby improving positioning efficiency.

[0023] It also includes: a limiting strip 7, which is fixedly installed on both sides of the driven frame 34; a limiting groove 8, which is opened on the inner side wall of the connecting frame 32. The outer surface of the limiting strip 7 and the inner surface of the limiting groove 8 are slidably installed. The limiting strip 7 is made of stainless steel and is fixed to the driven frame 34 by welding. The limiting groove 8 is a rectangular groove integrally machined on the inner side wall of the connecting frame 32 to ensure that the driven frame 34 slides only in the vertical direction and avoids offset or rotation.

[0024] This utility model provides a flexible string welding transmission device for multi-busbar solar cell production lines. Its specific working principle is as follows: In use, the battery cells are placed on the conveyor table 1. When the battery cells pass the calibration plate 12, the cylinder 18 is activated, pushing the movable plate 11 to move horizontally along the guide rod 16. The movable plate 11 moves the calibration plate 12 closer to the side of the battery cells. After the rotating belt 13 on the calibration plate 12 contacts the battery cells, under the continuous thrust of the cylinder 18, it drives the battery cells to fine-tune their position, completing the calibration. The pressure spring 15 always provides flexible pressure to prevent damage to the battery cells during the calibration process. At the same time, the limiting frame 14 ensures that the calibration plate 12 moves smoothly without deviation. When the battery cells are transferred from the conveyor table 1 to the corresponding area of ​​the stringing equipment, the device is activated. The electric cylinder 31 drives the connecting frame 32 to move downward. The connecting frame 32 simultaneously drives the driven frame 34, the driven rod 35, and the positioning plate 37 to move downward. When the roller 6 contacts the surface of the conveyor table 1, the driven frame 34 is limited and stops moving downward, while the connecting frame 32 continues to move downward under the drive of the electric cylinder 31, so that the movable column 33 penetrates into the interior of the driven frame 34. As the movable column 33 moves downward, it drives the connecting rod 36 to rotate. The connecting rod 36 pulls the driven rod 35 to move horizontally along the guide hole 4. The positioning plates 37 on both sides move closer to each other and make flexible contact with the edge of the battery cell through the rubber pad 5, achieving precise positioning of the battery cell and providing a stable reference for subsequent string welding. After string welding is completed, the electric cylinder 31 drives the connecting frame 32 to move upward, the return spring 9 pushes the driven frame 34 to reset, and the connecting rod 36 drives the driven rod 35 and the positioning plate 37 to reset, releasing the positioning of the battery cell.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexible string welding transmission device for multi-busbar solar cell production lines, comprising: The conveyor platform (1) is characterized by further comprising: a mounting frame (2) fixedly disposed on the conveyor platform (1), the mounting frame (2) being located at the string welding equipment; a positioning mechanism (3) disposed on the mounting frame (2), the positioning mechanism (3) being configured to position the battery cells on the conveyor platform (1) during operation; the positioning mechanism (3) comprising: an electric cylinder (31) fixedly disposed on the mounting frame (2), the telescopic end of the electric cylinder (31) penetrating the top of the mounting frame (2); a connecting frame (32) disposed inside the mounting frame (2), the top of the connecting frame (32) being connected to the electric cylinder (31) 1) The telescopic end is fixedly set; the driven frame (34) is slidably set inside the connecting frame (32), and the driven frame (34) can move in the vertical direction; the movable column (33) is fixedly set inside the top surface of the connecting frame (32), and the outer surface of the connecting frame (32) is slidably set inside the driven frame (34); the driven rod (35) is slidably set inside the driven frame (34), and the driven rod (35) can move in the horizontal direction; the connecting rod (36) is rotatably set on the movable column (33), and the other end of the connecting rod (36) is rotatably set on the surface of the driven rod (35).

2. The flexible string welding transmission device for multi-busbar solar cell production lines according to claim 1, characterized in that: Also includes: Mounting plate (10) is fixedly mounted on conveyor table (1); cylinder (18) is fixedly mounted on one side of mounting plate (10), and movable plate (11) is fixedly mounted on the telescopic end of cylinder (18); calibration plate (12) is mounted on one side of movable plate (11); rotating belt (13) is rotatably mounted on calibration plate (12); limiting frame (14) is fixedly mounted on one side of calibration plate (12), and the outer surface of limiting frame (14) is slidably mounted with the inside of movable plate (11); pressure spring (15) is fixedly mounted on calibration plate (12), and the other end of pressure spring (15) abuts against the surface of movable plate (11).

3. The flexible string welding transmission device for multi-busbar solar cell production lines according to claim 2, characterized in that: Also includes: The guide rod (16) is fixedly installed on one side of the movable plate (11), and the outer surface of the guide rod (16) is slidably installed inside the mounting plate (10); the limiting block (17) is fixedly installed at one end of the guide rod (16).

4. The flexible string welding transmission device for multi-busbar solar cell production lines according to claim 1, characterized in that: Also includes: A positioning plate (37) is fixedly installed at the bottom end of the driven rod (35); a roller (6) is fixedly installed at the bottom end of the driven rod (35). When the roller (6) contacts the surface of the conveyor table (1), there is a gap between the positioning plate (37) and the conveyor table (1).

5. The flexible string welding transmission device for multi-busbar solar cell production lines according to claim 4, characterized in that: Also includes: A guide hole (4) is formed through the driven frame (34), and the outer surface of the driven rod (35) is slidably disposed with the inner surface of the guide hole (4); a rubber pad (5) is fixedly disposed on the positioning surface of the positioning plate (37).

6. The flexible string welding transmission device for multi-busbar solar cell production lines according to claim 1, characterized in that: Also includes: A reset spring (9) is sleeved on the movable column (33), and the two ends of the reset spring (9) are fixedly set to the surfaces of the connecting frame (32) and the driven frame (34), respectively.

7. The flexible string welding transmission device for multi-busbar solar cell production lines according to claim 1, characterized in that: Also includes: The limiting strip (7) is fixedly installed on both sides of the driven frame (34); the limiting groove (8) is opened on the inner side wall of the connecting frame (32), and the outer surface of the limiting strip (7) and the inner surface of the limiting groove (8) are slidably installed.

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