String sucking device for photovoltaic module typesetting

Abstract

The string suction device comprises a fixing plate, two air cylinders, a mounting frame and a suction cup assembly, the center of the fixing plate is connected with a typesetting mechanical arm, the two air cylinders are symmetrically arranged at the bottoms of the left side and the right side of the fixing plate, telescopic rods of the two air cylinders are arranged back to back, and the suction cup assembly is arranged on the mounting frame. The telescopic direction of the telescopic rods is parallel to the axis direction of the fixing plate, each telescopic rod is connected with a mounting frame, the left side and the right side of the bottom of each mounting frame are provided with suction cup assemblies used for adsorbing photovoltaic module battery strings respectively, and the telescopic rods drive the mounting frames and the suction cup assemblies to move left and right. Therefore, the battery string and the arched solder strip thereof are straightened. The BC battery typesetting device can effectively solve the problems that in the existing BC battery typesetting process, BC batteries are prone to being obviously warped and deformed, and welding strips are prone to arching.

Description

Technical Field

[0001] This utility model relates to the technical field of photovoltaic modules, and in particular to a stringing device for photovoltaic module layout. Background Technology

[0002] Currently, in the photovoltaic module manufacturing process, a key preliminary step is welding several solar cells into strings and arranging them. Specifically, multiple photovoltaic cell strings need to be precisely arranged on tempered glass covered with EVA (ethylene-vinyl acetate copolymer) according to specific requirements, thus laying a solid foundation for subsequent cell string connection processes.

[0003] With the rapid innovation of photovoltaic technology, back-contact (BC) cells are entering a period of rapid development and are likely to become the core force leading the development of next-generation photovoltaic cell technology, propelling the industry to new heights. Due to the unique structural design of BC cells, where both the positive and negative electrodes are integrated on the back, the back becomes the only area for soldering. This characteristic leads to a significant problem of uneven stress distribution between the front and back sides during the soldering process. Specifically, the cells are prone to significant warping and deformation after soldering, and the solder strips may arch. These problems not only pose challenges to the positioning accuracy and consistency of subsequent cell layout processes but also interfere with the accuracy and efficiency of the testing process, becoming a key process bottleneck restricting the industrial application of BC cells. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a stringing device for photovoltaic module layout, which can effectively solve the problems of obvious warping and deformation of BC cells and easy arching of solder strips in the existing BC cell layout process.

[0005] The objective of this utility model can be achieved by adopting the following technical solutions:

[0006] A string-attracting device for photovoltaic module layout includes a fixed plate, cylinders, mounting frames, and suction cup assemblies. The center of the fixed plate is connected to a layout robot. There are two cylinders, symmetrically arranged on the bottom of the left and right sides of the fixed plate. The telescopic rods of the two cylinders are arranged back to back, and the extension and retraction directions of the telescopic rods are parallel to the axial direction of the fixed plate. Each telescopic rod is connected to a mounting frame. The bottom left and right sides of each mounting frame are respectively provided with suction cup assemblies for adsorbing photovoltaic module cell strings. The telescopic rods drive the mounting frame and suction cup assemblies to move left and right, thereby straightening the cell strings and their arched welding strips.

[0007] Furthermore, the mounting bracket and suction cup assembly are connected by an adjusting bolt assembly, and the bottom of the mounting bracket is provided with a T-shaped through hole to facilitate the movement of the adjusting bolt assembly in the left and right direction. The T-shaped through hole includes a horizontal groove and a vertical groove that are interconnected. The horizontal groove is used to accommodate the screw head of the adjusting bolt assembly, and its height is greater than the height of the screw head of the adjusting bolt assembly. By adjusting the position of the adjusting bolt assembly in the T-shaped through hole, it can adapt to the arrangement requirements of battery strings of different lengths.

[0008] Furthermore, the suction cup assembly includes a connecting plate and two suction cups. The connecting plate has a through hole at its center for the screw of the adjusting bolt assembly to pass through, and mounting holes at both ends for mounting the suction cups. The two suction cups are mounted on the connecting plate through the two mounting holes.

[0009] Furthermore, the mounting hole is an oblong hole, which allows adjustment of the distance between the two suction cups, thereby attracting battery strings of different sizes.

[0010] Furthermore, the fixed plate has a first mounting hole at its center for connecting a typesetting robot, and second mounting holes at its left and right ends for connecting cylinders.

[0011] Furthermore, the adjusting bolt assembly includes an adjusting bolt and a matching nut.

[0012] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0013] The suction device of this utility model has a simple structure and is easy to operate. After the battery string is adsorbed by the suction cup, the horizontal movement of the cylinder extension rod applies a tensile force to the battery string, thereby effectively straightening the arched welding strip and facilitating the smooth progress of subsequent processes. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the suction stringing device of this utility model.

[0015] Figure 2 This is a schematic diagram of the T-shaped through hole of this utility model.

[0016] Figure 3 This is a schematic diagram of the suction cup assembly of this utility model.

[0017] Figure 4 This is a schematic diagram of the connecting plate of this utility model.

[0018] Figure 5 This is a schematic diagram of the structure of the fixing plate of this utility model. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0020] like Figure 1 As shown, this embodiment provides a string-collecting device for photovoltaic module layout, including a fixed plate 1, cylinders 2, a mounting frame 3, and a suction cup assembly. The center of the fixed plate 1 is connected to a layout robot. There are two cylinders 2, symmetrically arranged at the bottom of the left and right sides of the fixed plate 1. The telescopic rods 201 of the two cylinders 2 are arranged back to back, and the extension and retraction direction of the telescopic rods 201 is parallel to the axial direction of the fixed plate, extending outward (i.e.,...). Figure 1 Stretch inwards (towards the left side) Figure 1 (From the right side) Retracts, each telescopic rod 201 is connected to a mounting frame 3, and each mounting frame 3 has a suction cup assembly connected to the left and right sides of its bottom for adsorbing photovoltaic module cell strings. The telescopic rod 201 drives the mounting frame 3 and the suction cup assembly to move left and right, thereby straightening the cell strings and their arched welding strips.

[0021] Specifically, the mounting bracket 3 and the suction cup assembly are connected by an adjusting bolt assembly, which includes an adjusting bolt 6 and a matching nut 7. The bottom of the mounting bracket 3 is provided with a T-shaped through hole 301 to facilitate the movement of the adjusting bolt assembly in the left and right directions.

[0022] like Figure 2 As shown, the T-shaped through hole 301 includes a horizontal groove 3011 and a vertical groove 3012 that are interconnected. The horizontal groove 3011 is used to accommodate the screw head of the adjusting bolt 6, and its height is greater than the height of the screw head of the adjusting bolt 6. By adjusting the position of the adjusting bolt assembly in the T-shaped through hole 301, it can adapt to the layout requirements of battery strings of different lengths.

[0023] like Figure 3 As shown, the suction cup assembly includes a connecting plate 4 and two suction cups 5. The connecting plate 4 has a through hole 401 at its center for the screw of the adjusting bolt assembly to pass through, and mounting holes for mounting the suction cups 5 at both ends. The two suction cups 5 are mounted on the connecting plate 4 through the two mounting holes.

[0024] like Figure 4 As shown, the mounting hole is an oblong hole 402. The distance between the two suction cups 5 is adjusted through the oblong hole, thereby adsorbing battery strings of different sizes.

[0025] like Figure 5As shown, the center of the fixed plate 1 is provided with a first mounting hole 101 for connecting the typesetting robot, and the left and right ends are provided with second mounting holes 102 for connecting the cylinder 2.

[0026] The above-mentioned suction device is used as follows:

[0027] 1. Press down the suction cup to allow it to adhere to the battery cells at the beginning and end of the battery string;

[0028] 2. Extend the cylinder's telescopic rod outwards;

[0029] 3. After straightening the arched solder strips of the battery strings, arrange them in the layout;

[0030] 4. The cylinder's telescopic rod retracts to allow for the next operation.

[0031] The above description is only a preferred embodiment of this utility model patent, but the protection scope of this utility model patent is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed in this utility model patent, based on the technical solution and utility model patent concept of this utility model patent, shall fall within the protection scope of this utility model patent.

Claims

1. A string-attracting device for photovoltaic module arrangement, characterized in that: The device includes a fixed plate, cylinders, mounting brackets, and suction cup assemblies. The center of the fixed plate is connected to a layout robot. There are two cylinders, symmetrically arranged on the bottom of the left and right sides of the fixed plate. The telescopic rods of the two cylinders are arranged back to back, and the extension and retraction direction of the telescopic rods is parallel to the axis of the fixed plate. Each telescopic rod is connected to a mounting bracket. The bottom left and right sides of each mounting bracket are respectively provided with suction cup assemblies for adsorbing photovoltaic module cell strings. The telescopic rods drive the mounting brackets and suction cup assemblies to move left and right, thereby straightening the cell strings and their arched welding strips.

2. The string-attracting device for photovoltaic module layout according to claim 1, characterized in that: The mounting bracket and suction cup assembly are connected by an adjusting bolt assembly, and the bottom of the mounting bracket is provided with a T-shaped through hole to facilitate the movement of the adjusting bolt assembly in the left and right direction. The T-shaped through hole includes a horizontal groove and a vertical groove that are interconnected. The horizontal groove is used to accommodate the screw head of the adjusting bolt assembly, and its height is greater than the height of the screw head of the adjusting bolt assembly. By adjusting the position of the adjusting bolt assembly in the T-shaped through hole, it can adapt to the arrangement requirements of battery strings of different lengths.

3. The string-attracting device for photovoltaic module layout according to claim 1, characterized in that: The suction cup assembly includes a connecting plate and two suction cups. The connecting plate has a through hole at its center for the screw of the adjusting bolt assembly to pass through, and mounting holes at both ends for mounting the suction cups. The two suction cups are mounted on the connecting plate through the two mounting holes.

4. The string-attracting device for photovoltaic module layout according to claim 3, characterized in that: The mounting hole is an oblong hole, through which the distance between the two suction cups can be adjusted, thereby adsorbing battery strings of different sizes.

5. The string-attracting device for photovoltaic module layout according to claim 1, characterized in that: The fixed plate has a first mounting hole at its center for connecting a typesetting robot, and second mounting holes at its left and right ends for connecting cylinders.

6. The string-attracting device for photovoltaic module layout according to claim 2, characterized in that: The adjusting bolt assembly includes an adjusting bolt and a matching nut.

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