A solar printing screen structure and its fusing apparatus and processing method

Abstract

The application relates to the photovoltaic technical field, in particular to a solar printing screen structure, a fusing equipment thereof and a processing method, which comprise an electrode pattern, a main grid pattern line, a warp and a weft, the warp and the weft are woven to form a printing screen, a mesh hole is formed between two adjacent warps and two adjacent wefts, the warp is parallel to the main grid pattern line, the main grid pattern line is symmetrically arranged on the two sides of the electrode pattern, a main grid pad point is located in the electrode pattern, and the part of the warp in the coverage range of the electrode pattern is subjected to fusing treatment outside the coverage range of the electrode pattern. The application has the effects of improving the wear resistance of the printing screen and improving the conversion efficiency of the battery.

Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and in particular to a solar printing screen structure and its fusing equipment and processing method. Background Technology

[0002] With rapid economic development, energy consumption is increasing, and the reserves of non-renewable resources such as coal and oil are decreasing day by day. The development and utilization of new energy sources has become a global consensus. Among them, as a source of many energy sources on Earth, solar energy occupies an important position in the research and application of clean energy, and solar cells are a core representative of solar energy applications.

[0003] The function of a printing screen is to form a high-quality conductive layer or circuit pattern on the battery substrate by precisely controlling the coating position and thickness of metal paste (such as silver powder, aluminum, etc.), thereby improving the photoelectric conversion efficiency and power generation performance of the battery.

[0004] Therefore, improving the conversion efficiency of solar cells is a major goal of current solar cell research. In addition to the selection of substrate materials and silver paste materials, choosing a suitable printing screen can also effectively improve the conversion efficiency of the cell.

[0005] The pad points on the solar cell electrode printing screen refer to the conductive connection points formed on the main grid lines of a photovoltaic cell using printing screen technology. These pad points serve to connect and conduct electricity at the edges of the cell, ensuring that current can be smoothly transmitted through the main grid lines to other parts of the cell. These pad points are typically designed on the tape of the printing screen.

[0006] Battery electrode printing screens typically use metal wire mesh as the material for the printing area. Because the main grid pads are located on the drawing wire, there are problems such as large ink penetration and significant wear at the main grid pads. As the number of printings increases, the graphic pads become severely worn, which can easily lead to ink seepage and leakage. In severe cases, it can cause cracking and screen breakage, affecting the battery's conversion efficiency and thus having shortcomings. Summary of the Invention

[0007] To improve the conversion efficiency of batteries, this application provides a solar printing screen structure, its fusing device, and its processing method.

[0008] Firstly, this application provides a solar-powered printing screen structure, which adopts the following technical solution: A solar printing screen structure includes an electrode pattern, a main grid pattern line, warp threads, and weft threads. The warp threads and weft threads are woven to form a printing screen. Mesh openings are formed between adjacent warp threads and adjacent weft threads. The warp threads are parallel to the main grid pattern line, which is symmetrically arranged on both sides of the electrode pattern. The main grid pad point is located within the electrode pattern. The portion of the warp threads outside the coverage area of ​​the electrode pattern is melted off.

[0009] By adopting the above technical solution, when workers design printing screens, they can retain the warp threads on the printing screen within the electrode pattern coverage area through the printing screen melting and wire retention technology. This improves the structural strength of the main grid pad point area, thereby enhancing the wear resistance and puncture resistance of the printing screen at this location. Consequently, it reduces the amount of ink transmitted and wear at the main grid pad point, thus extending the lifespan of the screen, reducing ink seepage and leakage, and ultimately improving the battery conversion efficiency.

[0010] Secondly, this application provides a fusing device for solar printing screens, employing the following technical solution: A fusing device for a solar printing screen includes a processing table, a control panel, and a fusing assembly. A processing plate is slidably mounted on the processing table, and a driving assembly is provided on the processing table to drive the processing plate to slide. The solar printing screen is detachably mounted on the processing plate, and the fusing assembly is used to fuse the threads on the solar printing screen.

[0011] By adopting the above technical solution, the worker fixes the printing screen onto the processing plate, and then inputs the parameters of the drawing, the fusing method, the length value of the fusing interval of the main grid pad point, the compensation tolerance value, and the material of the printing screen into the control panel. Then, the drive component drives the processing plate to move the printing screen. During this process, the fusing component will fuse the parallel wires in the sliding direction of the processing plate according to the data input into the control panel. At the same time, when the fusing reaches the coverage area of ​​the electrode pattern, the fusing component will cross the wires within the coverage area of ​​the electrode pattern and continue to fuse the wires outside the coverage area of ​​the electrode pattern until the printing screen is processed. By retaining the wires at the main grid pad point, the wear resistance at the main grid pad point is improved during the printing process, thereby improving the conversion efficiency of the produced battery.

[0012] Optionally, the fusing assembly includes a mounting bracket disposed on the processing table, and a laser fusing head and a camera are disposed on the mounting bracket and directly above the processing plate. The lens of the camera is provided with a reference line, and both the laser fusing head and the camera are electrically connected to the control panel.

[0013] By adopting the above technical solution, the camera feeds back the fixation status of the printing screen fixed on the processing plate to the control panel. The control panel controls the laser melting head to melt the warp threads on the printing screen according to the input drawing parameters.

[0014] Optionally, the drive assembly includes a mounting plate slidably disposed on the processing table, a drive screw rotatably disposed on the processing table, the axis of the drive screw being parallel to the reference line, the mounting plate being threadedly connected to the drive screw, a first guide rod disposed on the processing table parallel to the axis of the drive screw, the mounting plate being slidably sleeved on the first guide rod, a drive motor electrically connected to the control panel disposed on the processing table, the drive screw being coaxially disposed on the output shaft of the drive motor, the processing plate being slidably disposed on the mounting plate, and a focusing element disposed on the mounting plate for driving the processing plate to slide along the radial direction of the axis of the drive screw.

[0015] By adopting the above technical solution, the focusing component drives the processing plate to slide synchronously with the printing screen, thereby aligning the warp lines on the printing screen with the reference lines on the camera lens. Then, the control panel starts the drive motor, and the output shaft of the drive motor drives the drive screw to rotate. Under the guidance of the first guide rod, the mounting plate drives the processing plate to slide along the axis of the drive screw, thereby melting the warp lines on both sides of the electrode pattern in the warp direction, thus realizing the wire drawing process of the printing screen and completing the production of the printing screen.

[0016] Optionally, the focusing component includes a focusing screw rotatably mounted on the mounting plate, a second guide rod parallel to the axis of the focusing screw on the mounting plate, the axis of the focusing screw being perpendicular to the axis of the drive screw, a focusing motor electrically connected to the control panel on the mounting plate, the focusing screw being coaxially mounted on the output shaft of the focusing motor, a positioning plate threaded onto the focusing screw, the positioning plate being slidably sleeved on the second guide rod, and the processing plate being detachably mounted on the positioning plate.

[0017] By adopting the above technical solution, the control panel starts the focusing motor, the output shaft of the focusing motor drives the focusing screw to rotate, and under the guidance of the second guide rod, the positioning plate slides along the axis of the second guide rod, thereby aligning the warp lines on the printing screen with the reference lines on the camera lens.

[0018] Optionally, a mesh corner plate is horizontally rotatably mounted on the positioning plate, the processing plate is detachably mounted on the mesh corner plate, an angle motor electrically connected to the control panel is mounted on the positioning plate, and the mesh corner plate is mounted on the output shaft of the angle motor.

[0019] By adopting the above technical solution, when there is an angle difference between the warp of the printing screen fixed on the processing plate and the reference line on the camera lens, the control panel starts the angle motor. The output shaft of the angle motor drives the screen angle plate to rotate, thereby causing the screen angle plate to drive the processing plate to rotate synchronously. This makes the printing screen on the processing plate rotate synchronously, and thus makes the warp of the printing screen gradually parallel to the reference line on the camera lens.

[0020] Optionally, the mounting bracket is equipped with a nozzle, the extension line of the air outlet of the nozzle pointing to the intersection of the laser melting head and the wire on the solar printing screen, and the processing table is equipped with an air pump electrically connected to the control panel, and a flexible hose is connected between the air pump and the nozzle.

[0021] By adopting the above technical solution, the control panel starts the air pump, which delivers airflow to the nozzle through a hose. The airflow from the nozzle blows off the fused warp threads and separates them from the weft threads.

[0022] Thirdly, this application provides a processing method for producing solar printing screens using a fusing device, employing the following technical solution: A processing method for producing solar printing screens using a fusing device includes the following steps: S1. Inspection and Fixing: Inspect the surface of the printing screen for any foreign matter, and fix the inspected printing screen onto the processing plate; S2, DXF drawing design: Calculate the wire spacing distance of the main grid pad point according to the drawing parameters, and draw the DXF drawing; S3. Input parameters: Based on the drawn DXF drawing, input the position parameters of the printing screen to be melted, the material of the printing screen, the melting method, the distance from the starting wire to the ending wire, the length value of the main grid pad point interval melting, and the melting compensation error value on the control panel. S4, Welding process: The driving component (11) drives the processing plate (10) to slide, and the welding component (9) welds the wires on the solar printing screen that are parallel to the sliding direction of the processing plate (10). When the welding reaches the main grid pad point (0), the welding passes the wires that are parallel to the sliding direction of the processing plate (10) at the main grid pad point (0) and continues to weld the wires that are parallel to the sliding direction of the processing plate (10) along the sliding direction of the processing plate (10) until the DXF drawing is completed. S5. Finished Product Inspection: Use the corresponding graphic film to position the main grid pad point area to confirm that the wires in the main grid pad point wire retention area are completely within the melting range of the graphic film.

[0023] By adopting the above technical solution, the warp threads at the main grid pad point are retained, thereby improving the structural strength and wear resistance of the printing screen at the main grid pad point. This reduces the phenomenon of ink seepage and leakage at the main grid pad point, thereby improving the printing quality of the printing screen and thus improving the conversion efficiency of the battery.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. When workers design printing screens, they use the printing screen melting and wire retention technology to retain the warp threads on the printing screen within the area covered by the electrode pattern. This improves the structural strength of the main grid pad point area, thereby enhancing the wear resistance and puncture resistance of the printing screen at this point. This reduces the amount of ink transmitted and wear at the main grid pad point, thus extending the lifespan of the screen, reducing ink seepage and leakage, and ultimately improving the battery conversion efficiency. 2. The worker fixes the printing screen onto the processing plate, and then inputs the parameters of the drawing, the fusing method, the length value of the fusing interval of the main grid pad point, the compensation tolerance value, and the material of the printing screen into the control panel. Then, the drive component drives the processing plate to move the printing screen. During this process, the fusing component will fuse the parallel wires in the sliding direction of the processing plate according to the data input into the control panel. At the same time, when the fusing reaches the coverage area of ​​the electrode pattern, the fusing component will cross the wires within the coverage area of ​​the electrode pattern and continue to fuse the wires outside the coverage area of ​​the electrode pattern until the printing screen is processed. By retaining the wires at the main grid pad point, the wear resistance at the main grid pad point is improved during the printing process, thereby improving the conversion efficiency of the produced battery. 3. When there is an angle difference between the warp of the printing screen fixed on the processing plate and the reference line on the camera lens, the control panel starts the angle motor. The output shaft of the angle motor drives the screen angle plate to rotate, thereby causing the screen angle plate to rotate synchronously with the processing plate. This makes the printing screen on the processing plate rotate synchronously, and thus gradually makes the warp of the printing screen parallel to the reference line on the camera lens. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0026] Figure 2 This is a structural diagram illustrating the positional relationship between the mounting plate, the laser fuse head, and the control panel in the embodiments of this application.

[0027] Figure 3 This is a structural schematic diagram in the embodiments of this application used to illustrate the positional relationship between the mounting plate, the corner plate, and the positioning plate.

[0028] Explanation of reference numerals in the attached diagram: 0. Main grid pad point; 1. Electrode pattern; 2. Main grid pattern line; 3. Warp; 4. Weft; 5. Printing screen; 6. Mesh opening; 7. Processing table; 8. Control panel; 9. Fusible assembly; 91. Mounting bracket; 92. Laser fusing head; 93. Camera; 94. Baseline; 10. Processing plate; 11. Drive assembly; 111. Mounting plate; 112. Drive screw; 113. First guide rod; 114. Drive motor; 115. Focusing component; 1151. Focusing screw; 1152. Second guide rod; 1153. Focusing motor; 1154. Positioning plate; 12. Mesh angle plate; 13. Angle motor; 14. Nozzle; 15. Air pump; 16. Hose; 17. Display screen. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0030] Example 1 Embodiment 1 of this application discloses a solar-powered printing screen structure.

[0031] Reference Figure 1 A solar-powered printing screen structure includes an electrode pattern 1, a main grid pattern line 2, warp threads 3, and weft threads 4. The electrode pattern 1 and the main grid pattern line 2 are schematic lines on the design software to facilitate workers in designing the printing screen 5, and do not exist as physical objects. The warp threads 3 and weft threads 4 can be made of special steel wire. The warp threads 3 and weft threads 4 are woven to form the printing screen 5, and mesh openings 6 are formed between two adjacent warp threads 3 and two adjacent weft threads 4.

[0032] Reference Figure 1 Meridian 3 is parallel to main grid pattern line 2. Main grid pattern line 2 is symmetrically arranged on both sides of electrode pattern 1. Main grid pad point 0 is located within electrode pattern 1. Meridian 3 within the coverage area of ​​electrode pattern 1 is partially melted off outside the coverage area of ​​electrode pattern 1.

[0033] The implementation principle of Example 1 is as follows: The worker first designs the layout of the printing screen 5 on the software according to the customer's drawings, and calculates the wire retention distance of the main grid pad point 0 according to the parameters of the printing screen 5 and the parameters of the customer's drawings, and draws the layout DXF drawing. Then, through the printing screen 5 melting and wire retention technology, the warp lines 3 on the printing screen 5 in the area covered by the electrode pattern 1 are retained.

[0034] This improves the structural strength of the main grid pad point 0 of the printing screen 5, thereby enhancing the wear resistance and puncture resistance of the printing screen 5 at this point, reducing the amount of ink penetration and wear at the main grid pad point 0 during the printing process, thus extending the service life of the printing screen 5, reducing ink seepage and leakage, and ultimately improving the battery conversion efficiency.

[0035] Example 2 Embodiment 2 of this application discloses a fusing device for solar-powered printing screens.

[0036] Reference Figure 2 and Figure 3 A fusing device for a solar printing screen includes a processing table 7, a control panel 8, and a fusing assembly 9. The control panel 8 is equipped with a display screen 17. A processing plate 10 is slidably arranged on the processing table 7. A driving assembly 11 for driving the processing plate 10 to slide is arranged on the processing table 7. The solar printing screen is detachably arranged on the processing plate 10. The fusing assembly 9 is used to fuse the threads on the solar printing screen (the threads in this application are warp threads 3, but can also be weft threads 4).

[0037] Reference Figure 3 The fusing assembly 9 includes a mounting bracket 91 welded to the processing table 7. A laser fusing head 92 and a camera 93 are bolted to the mounting bracket 91 and located directly above the processing plate 10. The camera 93 has a reference line 94 (not shown in the figure) drawn on its lens. Both the laser fusing head 92 and the camera 93 are electrically connected to the control panel 8.

[0038] Reference Figure 3 A nozzle 14 is bolted to the mounting bracket 91. The extension line of the air outlet of the nozzle 14 points to the laser melting head 92 and the intersection with the meridian 3. An air pump 15, which is electrically connected to the control panel 8, is bolted to the processing table 7. A hose 16 connects the air pump 15 and the nozzle 14.

[0039] The worker first fixes the printing screen 5 onto the processing plate 10. The camera 93 feeds back the surface condition of the printing screen 5 to the control panel 8. The worker observes the fixing and surface condition of the printing screen 5 through the display screen 17 on the control panel 8.

[0040] Reference Figure 3 The drive assembly 11 includes a mounting plate 111 slidably arranged on the processing table 7. A horizontally arranged drive screw 112 is rotatably connected to the processing table 7. The axis of the drive screw 112 is parallel to the reference line 94. The mounting plate 111 is threadedly connected to the drive screw 112. A first guide rod 113 parallel to the axis of the drive screw 112 is bolted to the processing table 7. The mounting plate 111 is slidably sleeved on the first guide rod 113.

[0041] Reference Figure 3 A drive motor 114, which is electrically connected to the control panel 8, is bolted to the processing table 7. A drive screw 112 is coaxially welded to the output shaft of the drive motor 114. The processing plate 10 is slidably arranged on the mounting plate 111. A focusing component 115 is arranged on the mounting plate 111 to drive the processing plate 10 to slide in the radial direction along the axis of the drive screw 112.

[0042] Reference Figure 3 The focusing component 115 includes a horizontally rotatable focusing screw 1151 rotatably connected to the mounting plate 111. A second guide rod 1152 parallel to the axis of the focusing screw 1151 is bolted to the mounting plate 111. The axis of the focusing screw 1151 is perpendicular to the axis of the drive screw 112. A focusing motor 1153 electrically connected to the control panel 8 is bolted to the mounting plate 111. The focusing screw 1151 is coaxially welded to the output shaft of the focusing motor 1153.

[0043] Reference Figure 3 A positioning plate 1154 is threaded onto the focusing screw 1151. The positioning plate 1154 is slidably sleeved on the second guide rod 1152. A mesh angle plate 12 is horizontally rotatably arranged on the positioning plate 1154. The processing plate 10 is bolted to the mesh angle plate 12. An angle motor 13, which is electrically connected to the control panel 8, is bolted to the positioning plate 1154. The mesh angle plate 12 is bolted to the output shaft of the angle motor 13.

[0044] When there is an angular difference between the warp line 3 of the printing screen 5 and the reference line 94 on the lens of the camera 93, the display screen 17 will show the specific value of the angular difference. At this time, the worker starts the angle motor 13 through the control panel 8. The output shaft of the angle motor 13 drives the screen angle plate 12 to rotate, and the screen angle plate 12 drives the processing plate 10 to rotate synchronously, so that the printing screen 5 on the processing plate 10 rotates synchronously until the warp line 3 on the printing screen 5 gradually becomes parallel to the reference line 94 on the lens of the camera 93.

[0045] Then, the worker starts the focusing motor 1153 through the control panel 8. The output shaft of the focusing motor 1153 drives the focusing screw 1151 to rotate. Under the guidance of the second guide rod 1152, the positioning plate 1154 slides along the axis of the second guide rod 1152 until the angle between the warp line 3 on the printing screen 5 and the reference line 94 on the lens of the camera 93 is limited to within 0.01 degrees.

[0046] Afterwards, the worker inputs the position parameters of the printing screen 5, the material of the printing screen 5, the output fusing energy of the laser fusing head 92, the distance value from the first weft thread 4 to the last weft thread 4, the length value of the fusing interval of the main grid pad point 0, and the fusing compensation error value on the control panel 8, and then starts the drive motor 114.

[0047] The output shaft of the drive motor 114 drives the drive screw 112 to rotate. Under the guidance of the first guide rod 113, the mounting plate 111 drives the processing plate 10 to slide along the axis of the drive screw 112. During this process, the laser melting head 92 melts the warp 3 below it. At the same time, the control panel 8 starts the air pump 15. The air pump 15 delivers airflow to the nozzle 14 through the hose 16. The airflow from the nozzle 14 blows the melted warp 3 off and separates it from the weft 4.

[0048] When the laser fuse head 92 melts to the main grid pad point 0 area, the control panel 8 controls the laser fuse head 92 to stop working until the laser fuse head 92 crosses the main grid pad point 0 area. Then the laser fuse head 92 continues to melt the meridian 3 until the maximum input distance value is reached.

[0049] The implementation principle of Example 2 is as follows: the worker first fixes the printing screen 5 on the processing plate 10, and the camera 93 feeds back the surface condition of the printing screen 5 to the control panel 8. The worker observes the fixing and surface condition of the printing screen 5 through the display screen 17 on the control panel 8.

[0050] When there is an angular difference between the warp line 3 of the printing screen 5 and the reference line 94 on the lens of the camera 93, the display screen 17 will show the specific value of the angular difference. At this time, the worker starts the angle motor 13 through the control panel 8. The output shaft of the angle motor 13 drives the screen angle plate 12 to rotate, and the screen angle plate 12 drives the processing plate 10 to rotate synchronously, so that the printing screen 5 on the processing plate 10 rotates synchronously until the warp line 3 on the printing screen 5 gradually becomes parallel to the reference line 94 on the lens of the camera 93.

[0051] Then, the worker starts the focusing motor 1153 through the control panel 8. The output shaft of the focusing motor 1153 drives the focusing screw 1151 to rotate. Under the guidance of the second guide rod 1152, the positioning plate 1154 slides along the axis of the second guide rod 1152 until the angle between the warp line 3 on the printing screen 5 and the reference line 94 on the lens of the camera 93 is limited to within 0.01 degrees.

[0052] Afterwards, the worker inputs the position parameters of the printing screen 5, the material of the printing screen 5, the output fusing energy of the laser fusing head 92, the distance value from the first weft thread 4 to the last weft thread 4, the length value of the fusing interval of the main grid pad point 0, and the fusing compensation error value on the control panel 8, and then starts the drive motor 114.

[0053] The output shaft of the drive motor 114 drives the drive screw 112 to rotate. Under the guidance of the first guide rod 113, the mounting plate 111 drives the processing plate 10 to slide along the axis of the drive screw 112. During this process, the laser melting head 92 melts the warp 3 below it. At the same time, the control panel 8 starts the air pump 15. The air pump 15 delivers airflow to the nozzle 14 through the hose 16. The airflow from the nozzle 14 blows the melted warp 3 off and separates it from the weft 4.

[0054] When the laser fuse head 92 melts to the main grid pad point 0 area, the control panel 8 controls the laser fuse head 92 to stop working until the laser fuse head 92 crosses the main grid pad point 0 area. Then the laser fuse head 92 continues to melt the meridian 3 until the maximum input distance value is reached.

[0055] Example 3 Embodiment 3 of this application discloses a processing method for producing solar printing screens using a fusing device, comprising the following steps: S1. Select Material: Confirm the size and material parameters of the selected printing screen 5; S2, DXF drawing design: Calculate the wire retention distance at the main grid pad point 0 based on the customer's drawing parameters, and draw the DXF drawing; S3, Import Drawing: Import the drawn DXF drawing into Control Panel 8; S4. Inspection and Fixing: Inspect the surface of the printing screen 5 for any foreign matter, and fix the inspected printing screen 5 onto the processing plate 10. S5. Input parameters: Based on the drawn DXF drawing, input the position parameters of the printing screen 5, the material of the printing screen 5, the output energy value of the laser fusing head 92, the distance value from the first latitude line 4 to the last latitude line 4, the length value of the fusing interval of the main grid pad point 0, and the error value of the fusing compensation on the control panel 8. S6. Focusing and Alignment: The warp line 3 of the printing screen 5 on the processing plate 10 is gradually made parallel with the reference line 94 on the lens of the camera 93 by the angle motor 13, and the angle error is controlled within 0.01 degrees. Then, the warp line 3 on the printing screen 5 is gradually made to coincide and align with the reference line 94 on the lens of the camera 93 by the focusing motor 1153. S7. Welding: The control system starts the drive motor 114, which drives the processing plate 10 to slide along the axis of the drive screw 112. At the same time, the laser welding head 92 emits a laser to the warp 3 below it according to the input parameters, thereby melting the warp 3 on the printing screen 5. When the welding reaches the main grid pad point 0, the laser welding head 92 stops working until it passes the warp 3 covered by the main grid pad point 0. Then it continues to weld the warp 3 along the sliding direction of the processing plate 10 until the DXF drawing is completed. S8. Residual treatment: Use a special brush to remove the steel wires remaining on the printing screen 5 after melting; S9. Finished Product Inspection: Use the corresponding graphic film to position the main grid pad point 0 area to confirm that the warp 3 of the main grid pad point 0 wire retention area is completely within the melting range of the graphic film.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A solar-powered printing screen structure, characterized in that: It includes an electrode pattern (1), a main grid pattern line (2), warp threads (3) and weft threads (4). The warp threads (3) and the weft threads (4) are woven to form a printing mesh (5). The electrode pattern (1) and the main grid pattern line (2) are schematic lines on the design software to facilitate workers in designing the printing mesh (5) plate. They do not exist as physical objects. A mesh (6) is formed between two adjacent warp threads (3) and two adjacent weft threads (4). The warp threads (3) are parallel to the main grid pattern line (2). The main grid pattern line (2) is symmetrically arranged on both sides of the electrode pattern (1). The main grid pad point (0) is located inside the electrode pattern (1). The warp threads (3) within the coverage area of ​​the electrode pattern (1) and the parts outside the coverage area of ​​the electrode pattern (1) are melted off.

2. A processing method for producing the solar printing screen structure of claim 1 using a fusing device, characterized in that: The fusing device includes a processing table (7), a control panel (8), and a fusing assembly (9). A processing plate (10) is slidably disposed on the processing table (7). A driving assembly (11) for driving the processing plate (10) to slide is disposed on the processing table (7). The solar printing screen is detachably disposed on the processing plate (10). The fusing assembly (9) is used to fuse the threads on the solar printing screen. The process includes the following steps: S1. Inspection and fixing: Check the surface of the printing screen (5) for any foreign matter, and fix the inspected printing screen (5) onto the processing plate (10); S2. DXF drawing design: Calculate the wire spacing distance of the main grid pad point (0) according to the drawing parameters, and draw the DXF drawing; S3. Input parameters: According to the drawn DXF drawing, input the position parameters of the printing screen (5) to be melted, the material of the printing screen (5), the melting method, the distance value from the starting wire to the ending wire, the length value of the interval melting of the main grid pad point (0), and the melting compensation error value on the control panel (8); S4. Melting process: The driving component (11) drives the processing plate (10) to slide, and the melting component (9) melts the wires on the solar printing screen that are parallel to the sliding direction of the processing plate (10). When the melting reaches the main grid pad point (0), the wires that are parallel to the sliding direction of the processing plate (10) are passed over the area covered by the main grid pad point (0), and the wires that are parallel to the sliding direction of the processing plate (10) continue to be melted along the sliding direction of the processing plate (10) until the DXF drawing is completed. S5. Finished product inspection: The main grid pad point (0) area is positioned using the corresponding graphic film to confirm that the wires in the wire retention area of ​​the main grid pad point (0) are completely within the melting range of the graphic film.

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