A photovoltaic module string welding method

Abstract

The present invention discloses a method for string welding of photovoltaic modules, which is characterized in that it comprises the following steps: adjusting the connection plate by rotating the bolts in the string welding machine according to the size of the photovoltaic modules to be string welded, driving the extrusion plate to move along the first slide groove by turning the knob, adjusting the plurality of guide grooves, and driving the extrusion plate to move by tightening the knob after the adjustment, and fixing the plurality of guide grooves; sucking the battery cell by a mechanical suction cup and placing it on a conveyor belt, placing the welding strip on the surface of the battery cell by a mechanical claw, driving the battery cell to move by the conveyor belt, welding by the welding assembly, and forming a battery string group.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic assembly production, and in particular to a photovoltaic assembly series welding method. Background Art

[0002] At present, the string welding method of photovoltaic modules is: the battery cells are loaded and sucked and transferred to the conveyor belt by a mechanical suction cup, and then the welding ribbon is stretched by a mechanical claw, cut by a cutting knife, and placed on the surface of the battery cell by the mechanical claw for welding through the welding assembly. However, the photovoltaic modules on the conveyor belt are placed by mechanical suction cups, which may cause the photovoltaic modules to be tilted, resulting in scrapping during string welding and wasting resources. Therefore, the present invention proposes a string welding method for photovoltaic modules. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a method for string welding of photovoltaic modules.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a method for string welding of photovoltaic modules, characterized in that it includes the following steps: according to the size of the photovoltaic modules to be string welded, the connecting plate is adjusted by rotating the bolts in the string welding machine, and the extrusion plate is driven to move along the first slide groove by turning the knob, and the multiple guide grooves are adjusted, and after adjustment, the extrusion plate is driven to move by tightening the knob to fix the multiple guide grooves; the battery cell is sucked up by a mechanical suction cup and placed on a conveyor belt, the welding strip is placed on the surface of the battery cell by a mechanical claw, the battery cell is driven to move by the conveyor belt, and welding is performed by the welding assembly to form a battery string group.

[0005] The string welding machine includes a support table, a conveyor belt is fixedly connected to the surface of the support table, a support plate is fixedly connected to one end of the support table, a positioning guide plate is fixedly connected to the surface of the support plate, a spacing adjustment mechanism is arranged inside the positioning guide plate, a welding tape storage box is arranged on the side of the support table close to the support plate, mechanical claws, mechanical suction cups and welding components are respectively arranged above the support table, the mechanical claws, mechanical suction cups and welding components are all located on the surface of the conveyor belt, both sides of the conveyor belt are fixedly connected to limit plates, the middle parts of the two limit plates are fixedly connected to fixed plates, and the surfaces of the two fixed plates are provided with leveling mechanisms.

[0006] A solder tape outlet is provided on one side of the solder tape storage box, a solder tape roll is provided inside the solder tape storage box, a solder tape strip is sleeved on the surface of the solder tape roll, the solder tape strip passes through the solder tape outlet and is connected to a mechanical claw, and the solder tape strip is taken out of the solder tape storage box and stretched by the mechanical claw.

[0007] A cutting knife is arranged on one side of the positioning guide plate, and the welding strip stretched by the mechanical claw is cut by the cutting knife.

[0008] The leveling mechanism includes a connecting plate, which is located on the surface of the fixed plate. A bolt is provided on one side surface of the connecting plate. The bolt passes through the connecting plate and is threadedly connected to the fixed plate. A roller is rotatably connected to the bottom end of the connecting plate away from the bolt. A rubber sleeve is sleeved on the surface of the roller. The battery cells on the conveyor belt can be corrected by rotating the rotating shaft, and the rubber sleeve can protect the battery cells.

[0009] The spacing adjustment mechanism includes a plurality of guide grooves fixedly connected to the surface of a positioning guide plate, a first cavity and a second cavity are respectively opened inside both sides of the positioning guide plate, a knob is provided on one side of the positioning guide plate, one end of the knob is fixedly connected to a rotating shaft, the rotating shaft passes through the positioning guide plate and extends into the cavity, one end of the rotating shaft is rotatably connected to an extrusion plate, the extrusion plate is located in the cavity, both ends of the extrusion plate are fixedly connected to a first slider, one end of the guide groove away from the extrusion plate is fixedly connected to a second slider, the second slider is located in the second cavity, the first cavity and the second cavity are respectively provided with a first slide groove and a second slide groove on the inner side walls close to the first slider and the second slider, the knob is rotated to adjust the extrusion plate, so that the guide groove can be adjusted, and the size of the photovoltaic components to be serially welded can be adjusted to achieve serial welding between different photovoltaic groups.

[0010] A side plate is installed on the support platform, and the side plate is located on one side of the conveyor belt. A motor is installed at one end of the side plate, and the output shaft of the motor is arranged horizontally. A main sprocket is installed on the output shaft of the motor, and a slave sprocket is installed at the other end of the side plate. A chain belt is sleeved between the slave sprocket and the main sprocket. The number of the above-mentioned mechanical claws is two, and the two mechanical claws are respectively installed on the chain belt. A first bevel gear is also installed at the end of the output shaft of the motor, and a transmission shaft is vertically rotatably installed at one end of the side plate, and a second bevel gear matching with the first bevel gear is installed on the upper end of the transmission shaft. Two bevel gears, one end of the side plate is vertically slidably provided with a regulating rod, the lower end of the regulating rod is connected to the mounting seat, the cutting knife is fixed on the mounting seat, and two guide pillars are vertically fixed on the mounting seat, a clamping seat is slidably connected between the two guide pillars, and springs are also sleeved on the two guide pillars, one end of the side plate is also rotatably connected to the middle part of the linkage rod, one end of the linkage rod is slidably connected to one end of the regulating rod, a tension spring is also provided between the other end of the linkage rod and the side plate, a guide wheel is also installed on the linkage rod, and a cam matching the guide wheel is also installed on the transmission shaft.

[0011] The welding strip is located in the guide groove.

[0012] Beneficial effects of the present invention:

[0013] 1. Through the setting of the leveling mechanism, the connecting plate is fixed by rotating the bolts, and the adjustment is made according to the size of the photovoltaic modules to be welded. When the cells move on the conveyor belt, the tilted cells can be restored to a horizontal state through the two rotating shafts, which reduces the probability of the cells tilting when moving on the conveyor belt, improves the success rate of welding, and reduces the waste of resources.

[0014] 2. Through the setting of the spacing adjustment mechanism, the extrusion plate can be adjusted by turning the knob, so that multiple guide grooves can be adjusted according to the size of the photovoltaic components to be serially welded. After the adjustment, the extrusion plate is driven to fix the multiple guide grooves by tightening the knob, so that the guide grooves can be adjusted, and serial welding of different battery cells can be achieved, thereby improving the efficiency of serial welding.

[0015] 3. The above method can be used to conveniently manufacture battery strings in different types of photovoltaic modules, ensuring the success rate of string welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of the present invention;

[0017] Figure 2 It is a diagram of the leveling mechanism of the present invention;

[0018] Figure 3 It is a main cross-sectional view of the leveling mechanism of the present invention;

[0019] Figure 4 A top cross-sectional view of the spacing adjustment mechanism of the present invention;

[0020] Figure 5 It is a partially dismantled schematic diagram of the present invention;

[0021] Figure 6 This is a schematic diagram of the side panel of the present invention being partially removed.

[0022] Legend: 1. Support platform; 2. Conveyor belt; 3. Support plate; 4. Positioning guide plate; 5. Welding ribbon storage box; 6. Welding ribbon strip; 7. Mechanical claw; 8. Mechanical suction cup; 9. Welding assembly; 10. Limiting plate; 11. Fixing plate; 12. Connecting plate; 13. Bolt; 14. Rubber sleeve; 15. Roller; 16. Knob; 17. Extrusion plate; 18. First slider; 19. First slide; 20. Second slider; 2 1. Second slide groove; 22. Guide groove; 23. Side plate; 24. Control rod; 25. Link rod; 26. Guide wheel; 27. Transmission shaft; 28. Tension spring; 29. ​​Cam; 30. Second bevel gear; 31. Pressing seat; 32. Base plate; 33. Cutting knife; 34. Spring; 35. Guide column; 36. Mounting seat; 37. Motor; 38. Chain belt; 39. Main sprocket; 40. First bevel gear; 41. Slave sprocket. DETAILED DESCRIPTION

[0023] like Figure 1-Figure 6 As shown, a method for stringing photovoltaic modules comprises the following steps: according to the size of the photovoltaic modules to be stringed, the connecting plate 12 is adjusted by rotating the bolts 13 in the stringing machine, and the extrusion plate 17 is driven to move along the first slide groove 19 by turning the knob 16 to adjust the multiple guide grooves 22, and after the adjustment, the extrusion plate 17 is driven to move by tightening the knob 16 to fix the multiple guide grooves 22; the battery cell is sucked and placed on the conveyor belt 2 by the mechanical suction cup 8, the welding strip 6 is placed on the surface of the battery cell by the mechanical claw 7, the battery cell is driven to move by the conveyor belt 2, and the battery cell is welded by the welding assembly 9 to form a battery string group; the stringing machine comprises a support table 1, the surface of the support table 1 is fixedly connected to the conveyor belt 2, one end of the support table 1 is fixedly connected to the support plate 3, and the support A positioning guide plate 4 is fixedly connected to the surface of the support plate 3, and a spacing adjustment mechanism is arranged inside the positioning guide plate 4. A welding tape storage box 5 is arranged on the side of the support platform 1 close to the support plate 3, and mechanical claws 7, mechanical suction cups 8, and welding components 9 are respectively arranged above the support platform 1. The mechanical claws 7, mechanical suction cups 8, and welding components 9 are all located on the surface of the conveyor belt 2. Limiting plates 10 are fixedly connected to both sides of the conveyor belt 2, and fixed plates 11 are fixedly connected to the middle parts of the two limiting plates 10. Leveling mechanisms are arranged on the surfaces of the two fixed plates 11. A welding tape outlet is opened on one side of the welding tape storage box 5, and a welding tape roll is arranged inside the welding tape storage box 5. A welding tape strip 6 is sleeved on the surface of the welding tape roll, and the welding tape strip 6 passes through the welding tape outlet and is connected with the mechanical claws 7. A cutting knife is arranged on one side of the positioning guide plate 4.

[0024] The leveling mechanism includes a connecting plate 12, which is located on the surface of the fixing plate 11. A bolt 13 is provided on one side of the connecting plate 12. The bolt 13 passes through the connecting plate 12 and is threadedly connected to the fixing plate 11. The bottom end of the connecting plate 12 away from the bolt 13 is rotatably connected to a roller 15. A rubber sleeve 14 is sleeved on the surface of the roller 15. The spacing adjustment mechanism includes a plurality of guide grooves 22 fixedly connected to the surface of the positioning guide plate 4. A first cavity and a second cavity are respectively opened on both sides of the positioning guide plate 4. A knob 16 is provided on one side of the positioning guide plate 4. One end of the knob 16 is fixedly connected to a rotating shaft, which passes through the positioning guide plate 4 and extends into the cavity. One end of the rotating shaft is rotatably connected to an extrusion plate 17, which is located in the cavity. Both ends of the extrusion plate 17 are fixedly connected to a first slider 18, and one end of the guide groove 22 away from the extrusion plate 17 is fixedly connected to a second slider 20, which is located in the second cavity. A first slide groove 19 and a second slide groove 21 are respectively provided on the inner side walls of the first cavity and the second cavity near the first slider 18 and the second slider 20, and the welding strip 6 is located in the guide groove 22.

[0025] A side plate 23 is installed on the support platform 1, and the side plate 23 is located on one side of the conveyor belt 2. A motor 37 is installed at one end of the side plate 23, and the output shaft of the motor 37 is arranged horizontally. A main sprocket 39 is installed on the output shaft of the motor 37, and a slave sprocket 41 is installed at the other end of the side plate 23. A chain belt 38 is sleeved between the slave sprocket 41 and the main sprocket 39. The number of the above-mentioned mechanical claws is two, and the mechanical claws use existing products available on the market. When they are not working, the fingers of the mechanical claws can be retracted to 180 degrees; the two mechanical claws are respectively installed on the chain belt 38, and the output shaft end of the motor 37 is also installed with a first bevel gear 40. A transmission shaft 27 is vertically rotatably installed at one end of the side plate 23, and a second bevel gear 30 matching the first bevel gear 40 is installed on the upper end of the transmission shaft 27. A regulating rod 24 is vertically slidably set at one end of the side plate 23, and the lower end of the regulating rod 24 is connected to the mounting seat 36, and the cutting knife 33 is fixed on the mounting seat. On the seat 36, two guide pillars 35 are vertically fixed on the mounting seat 36, and a clamping seat 31 is slidably connected between the two guide pillars 35. A spring 34 is also sleeved on the two guide pillars 35. One end of the side plate 23 is also rotatably connected to the middle part of the linkage rod 25, and one end of the linkage rod 25 is slidably connected to one end of the regulating rod 24. A tension spring 28 is also provided between the other end of the linkage rod 25 and the side plate 23. A guide wheel 26 is also installed on the linkage rod 25, and a cam 29 that cooperates with the guide wheel 26 is also installed on the transmission shaft 27; with the above structure, through the mutual cooperation of the two mechanical claws, the welding strip can be pulled and the other can be reset. At the same time, through the cooperation of the first bevel gear 40, the second bevel gear 30, the transmission shaft 27, the regulating rod 24, the linkage rod 25, the guide wheel 26 and the cam 29, etc., the welding strip can be automatically cut; in this embodiment, a base plate 32 that cooperates with the cutting knife 33 is also installed on the support table 1.

[0026] During string welding, the battery cell is sucked up by the mechanical suction cup 8 and placed on the conveyor belt 2, the welding strip 6 is placed on the surface of the battery cell by the mechanical claw 7, the battery cell is moved by the conveyor belt 2, and welding is performed by the welding assembly 9. The connecting plate 12 can be adjusted by rotating the bolt 13 according to the size of the photovoltaic component to be string welded. After the adjustment, the roller 15 can correct the battery cell when it moves on the conveyor belt 2, thereby reducing the tilt of the battery cell on the conveyor belt 2. The extrusion plate 17 can be driven to move along the first slide groove 19 by rotating the knob 16, so that the multiple guide grooves 22 can be adjusted according to the size of the photovoltaic component to be string welded. After the adjustment, the extrusion plate 17 is driven to move by tightening the knob 16, and the multiple guide grooves 22 are fixed, and the guide grooves 22 are adjusted to realize string welding of different battery cells.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for string welding of photovoltaic modules, characterized in that: The method comprises the following steps: adjusting the connection plate (12) by rotating the bolts (13) in the stringing machine according to the size of the photovoltaic modules to be stringed, and driving the extrusion plate (17) to move along the first slide groove (19) by turning the knob (16), adjusting the plurality of guide grooves (22), and after the adjustment, driving the extrusion plate (17) to move by tightening the knob (16), and fixing the plurality of guide grooves (22); sucking the battery sheet by a mechanical suction cup (8) and placing it on the conveyor belt (2), and fixing the welding strip (6) by a mechanical claw (7). The battery cell is placed on the surface of the battery cell, the battery cell is moved by the conveyor belt (2), and the battery cell is welded by the welding assembly (9) to form a battery string group; a side plate (23) is installed on the support platform (1), the side plate (23) is located on one side of the conveyor belt (2), a motor (37) is installed at one end of the side plate (23), the output shaft of the motor (37) is arranged horizontally, a main sprocket (39) is installed on the output shaft of the motor (37), a slave sprocket (41) is installed at the other end of the side plate (23), and a chain belt (38) is sleeved between the slave sprocket (41) and the main sprocket (39). ), two mechanical claws are respectively mounted on the chain belt (38), a first bevel gear (40) is also mounted on the output shaft end of the motor (37), a transmission shaft (27) is vertically rotatably mounted on one end of the side plate (23), a second bevel gear (30) matching with the first bevel gear (40) is mounted on the upper end of the transmission shaft (27), a regulating rod (24) is vertically slidably arranged on one end of the side plate (23), the lower end of the regulating rod (24) is connected to the mounting seat (36), the cutting knife (33) is fixed on the mounting seat (36), and the mounting seat (36) is also vertically Two guide pillars (35) are fixed, a pressing seat (31) is slidably connected between the two guide pillars (35), a spring (34) is sleeved on the two guide pillars (35), one end of the side plate (23) is rotatably connected to the middle of the linkage rod (25), one end of the linkage rod (25) is slidably connected to one end of the regulating rod (24), a tension spring (28) is provided between the other end of the linkage rod (25) and the side plate (23), a guide wheel (26) is installed on the linkage rod (25), and a cam (29) matched with the guide wheel (26) is installed on the transmission shaft (27).

2. A photovoltaic module string welding method according to claim 1, characterized in that: The string welding machine comprises a support platform (1), the surface of the support platform (1) is fixedly connected to a conveyor belt (2), one end of the support platform (1) is fixedly connected to a support plate (3), the surface of the support plate (3) is fixedly connected to a positioning guide plate (4), the interior of the positioning guide plate (4) is provided with a spacing adjustment mechanism, a welding belt storage box (5) is provided on the side of the support platform (1) close to the support plate (3), a mechanical claw (7), a mechanical suction cup (8), and a welding assembly (9) are respectively provided above the support platform (1), the mechanical claw (7), the mechanical suction cup (8), and the welding assembly (9) are all located on the surface of the conveyor belt (2), both sides of the conveyor belt (2) are fixedly connected to a limit plate (10), the middle parts of the two limit plates (10) are fixedly connected to a fixed plate (11), and the surfaces of the two fixed plates (11) are provided with a leveling mechanism capable of adjusting the position of a photovoltaic module.

3. A photovoltaic module string welding method according to claim 2, characterized in that: A welding tape outlet is provided on one side of the welding tape storage box (5), a welding tape roll is provided inside the welding tape storage box (5), a welding tape strip (6) is sleeved on the surface of the welding tape roll, and the welding tape strip (6) passes through the welding tape outlet and is connected to the mechanical claw (7).

4. A photovoltaic module string welding method according to claim 2, characterized in that: A cutting knife is provided on one side of the positioning guide plate (4).

5. A photovoltaic module string welding method according to claim 2, characterized in that: The leveling mechanism comprises a connecting plate (12), the connecting plate (12) being located on the surface of the fixing plate (11), a bolt (13) being provided on one side surface of the connecting plate (12), the bolt (13) passing through the connecting plate (12) and being threadedly connected to the fixing plate (11), a roller (15) being rotatably connected to the bottom end of a side of the connecting plate (12) away from the bolt (13), and a rubber sleeve (14) being sleeved on the surface of the roller (15).

6. A photovoltaic module string welding method according to claim 2, characterized in that: The spacing adjustment mechanism comprises a plurality of guide grooves (22) fixedly connected to the surface of a positioning guide plate (4), a first cavity and a second cavity are respectively provided inside the two sides of the positioning guide plate (4), a knob (16) is provided on one side of the positioning guide plate (4), one end of the knob (16) is fixedly connected to a rotating shaft, the rotating shaft passes through the positioning guide plate (4) and extends into the cavity, one end of the rotating shaft is rotatably connected to an extrusion plate (17), the extrusion plate (17) is located in the cavity, both ends of the extrusion plate (17) are fixedly connected to a first slider (18), one end of the guide groove (22) away from the extrusion plate (17) is fixedly connected to a second slider (20), the second slider (20) is located in the second cavity, and a first slide groove (19) and a second slide groove (21) are respectively provided on inner side walls of the first cavity and the second cavity close to the first slider (18) and the second slider (20).

7. A photovoltaic module string welding method according to claim 5, characterized in that: The welding strip (6) is located in the guide groove (22).

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