Welding device for main-grid-free photovoltaic module

Abstract

The utility model discloses a welding device for a photovoltaic module without a main grid, which comprises a support frame, a mounting plate is mounted at the top of the support frame, a hydraulic cylinder is mounted on the upper surface of the mounting plate, a connecting block is mounted at the output end of the hydraulic cylinder, and a welding assembly is mounted at the lower part of the connecting block. The welding assembly comprises an installation frame connected with the connecting pipe, limiting blocks are installed on the two sides of the installation frame correspondingly, a plurality of sets of fixing grooves are formed in the upper surface of the installation frame, a plurality of sets of sliding blocks are installed in the installation frame, and pins are installed in each set of fixing grooves. A positioning rod is installed in the middle of each sliding block in a penetrating mode, a screw hole is formed in one side of each sliding block, a locking screw is installed in each screw hole, and a welding head is installed at the tail end of each positioning rod. According to the device, welding of welding points of different photovoltaic modules is achieved through the multiple welding heads and movement adjustment of the welding heads, and the practicability of the whole device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic component production, in particular to a welding device for a photovoltaic component without a main grid. Background Art

[0002] Busbar-less photovoltaic modules (0BB technology) are an innovative technology in the photovoltaic industry. It eliminates the traditional busbar during the photovoltaic cell manufacturing process. This means that the busbar and sub-grid are no longer required during the metal electrode screen printing process, and the width and spacing of the sub-grid are optimized. The core of this technology lies in eliminating the busbar and replacing it with a thinner solder ribbon, thereby reducing silver consumption, improving power generation efficiency, and helping to lower production costs. Due to its significant cost and silver reduction, and efficiency improvement effects, busbar-less technology has become one of the key technologies for cost reduction and efficiency improvement in the photovoltaic industry, and is considered by the industry to be the optimal solution for cost reduction and efficiency improvement of N-type photovoltaic modules.

[0003] The implementation of busbar-less technology brings multiple benefits. First, by eliminating the busbar, silver consumption can be reduced, thereby reducing costs. Furthermore, eliminating the busbar reduces the shading area and series resistance, improving cell efficiency and module power, further reducing production costs and improving power generation efficiency. Busbar-less technology also involves reducing silicon wafer thickness and film weight. These measures can bring cost savings, but the potential impact of thinning the silicon wafer and reducing the film weight needs to be weighed against each other.

[0004] According to the authorization announcement number CN 213437685 U, a photovoltaic module welding device is disclosed, including a handle, a heating head mounted on the end of the handle, and a clamping member elastically connected to the heating head. When the clamping member is not under pressure, it protrudes from the end of the heating head, and when under pressure, it contracts to be flush with the end of the heating head. During the welding process, the heating head is first pressed against the clamping member. The heating head and the clamping member together apply force to the surface of the welding ribbon. When the welding ribbon melts and forms a weld point, the handle is slowly lifted to move the heating head away from the welding ribbon. At this time, the clamping member is still pressed against the welding ribbon. When the ribbon is completely solidified, the welding device is lowered. The welding operation can be completed with one hand, with low workload and high efficiency.

[0005] The above patent has the following problems during use: photovoltaic modules are often divided into different layers for butt welding according to different processing techniques. The above photovoltaic module welding device has poor applicability and cannot adjust the welding position required for the photovoltaic module. At the same time, multiple welding points of the photovoltaic module need to be welded back and forth. Therefore, a new welding device for main grid-free photovoltaic modules is now important. Utility Model Content

[0006] The purpose of the utility model is to provide a welding device for a main grid-less photovoltaic module, which can weld the photovoltaic module by means of a plurality of welding heads that can be adjusted back and forth, so as to solve the technical problems mentioned in the background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A welding device for a busbar-less photovoltaic module comprises a support frame, wherein a mounting plate is slidably mounted on the top of the support frame, a hydraulic cylinder is mounted on the upper surface of the mounting plate, a connecting block is mounted on the output end of the hydraulic cylinder, and a welding assembly is mounted on the lower portion of the connecting block;

[0009] The welding assembly includes a mounting bracket connected to the connecting block, and limit blocks are respectively installed on both sides of the mounting bracket. Several groups of fixing grooves are opened on the upper surface of the mounting bracket, and several groups of first sliders are slidably installed inside the mounting bracket. A pin is installed through the inside of each group of the fixing grooves, and a positioning rod is installed through the middle part of each group of the first sliders. A screw hole is opened on one side of each group of the first sliders, and a locking screw is installed inside each group of the screw holes. A welding head is installed at the end of each group of the positioning rods, and a ring is installed at the connection between each group of the positioning rods and the welding head.

[0010] Preferably, two groups of grooves are symmetrically formed on the upper surface of the support frame, and a sliding rod is installed inside each group of the grooves.

[0011] Preferably, a second sliding block is slidably mounted on the middle portion of each group of sliding rods, and the tops of the two groups of second sliding blocks are mounted with the same mounting plate.

[0012] Preferably, an electric telescopic rod is installed on the upper surface of the support frame, and a connecting plate is installed on the output end of the electric telescopic rod, and one side of the connecting plate is connected to the side surface of the mounting plate.

[0013] Preferably, a welding platform is installed on the upper surface of the interior of the support frame, and a rectangular groove is opened on the upper surface of the welding platform.

[0014] Preferably, two groups of support blocks are symmetrically installed inside the rectangular groove, and a support plate is installed on the upper surface of each group of support blocks.

[0015] Preferably, the upper surface of each group of the support blocks is provided with a plurality of groups of circular grooves on the side of the support plate, and a telescopic suction cup is installed inside each group of the circular grooves.

[0016] Preferably, two groups of suction pipes are installed on one side of the welding table, and the input end of each group of the suction pipes is connected to the telescopic suction cup on the corresponding side.

[0017] Preferably, a conveying guide rail is installed in the middle of the two groups of support blocks inside the rectangular groove, and a conveying frame is installed at the output end of the conveying guide rail.

[0018] Preferably, a plurality of groups of fixing plates are installed on one side of the mounting frame, and the same scale plate is installed on the same side of the plurality of groups of fixing plates.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] When it is necessary to weld the photovoltaic modules, the hydraulic cylinder pushes the pipe connection block, thereby pushing the welding module onto the photovoltaic module for welding. The welding head can be adjusted inside the mounting frame according to the welding points of different photovoltaic modules to weld the photovoltaic modules. This device realizes welding of different welding points of photovoltaic modules through the movement and adjustment of multiple welding heads and welding heads, thereby improving the practicality of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the support structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the disassembly of the welding table structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the welding assembly structure of the utility model;

[0025] Figure 5 This is a schematic diagram of the disassembly of the slider structure of the utility model.

[0026] In the figure: 1. Support frame; 2. Mounting plate; 3. Hydraulic cylinder; 4. Connecting block; 5. Welding assembly; 51. Mounting frame; 511. Limit block; 52. Fixing groove; 53. First slider; 54. Pin; 55. Positioning rod; 56. Screw hole; 57. Locking screw; 58. Welding head; 59. Ring; 6. Groove; 7. Sliding rod; 8. Second slider; 9. Electric telescopic rod; 10. Connecting plate; 11. Welding table; 12. Rectangular groove; 13. Support block; 14. Support plate; 15. Circular groove; 16. Telescopic suction cup; 17. Suction pipe; 18. Conveying guide rail; 19. Conveying frame; 20. Fixing plate; 21. Scale plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1 and 5 The utility model provides a welding device for a busbar-less photovoltaic module, comprising a support frame 1, a mounting plate 2 being slidably mounted on the top of the support frame 1, a hydraulic cylinder 3 being mounted on the upper surface of the mounting plate 2, a connecting block 4 being mounted on the output end of the hydraulic cylinder 3, and a welding assembly 5 being mounted on the lower portion of the connecting block 4;

[0029] The welding assembly 5 includes a mounting frame 51 connected to the connecting block 4, and limit blocks 511 are respectively installed on both sides of the mounting frame 51. Several groups of fixing grooves 52 are opened on the upper surface of the mounting frame 51, and several groups of first sliders 53 are slidably installed inside the mounting frame 51. A pin 54 is installed through the first slider 53 inside each group of fixing grooves 52, and a positioning rod 55 is installed through the middle of each group of first sliders 53. A screw hole 56 is opened on one side of each group of first sliders 53, and a locking screw 57 is installed inside each group of screw holes 56. A welding head 58 is installed at the end of each group of positioning rods 55, and a ring 59 is installed at the connection between each group of positioning rods 55 and the welding head 58.

[0030] In this embodiment, if Figure 2 As shown, two groups of grooves 6 are symmetrically opened on the upper surface of the support frame 1, and a sliding rod 7 is installed inside each group of grooves 6. The grooves 6 opened on the upper surface of the support frame 1 are used to install the sliding rod 7, and the sliding rod 7 is used to slide the second slider 8 to realize the movement of the welding assembly 5, perform segmented welding on the photovoltaic assembly, and realize precise welding of the photovoltaic assembly.

[0031] In a further preferred embodiment, Figure 2 As shown, a second slider 8 is slidably installed in the middle of each set of sliding rods 7, and the same mounting plate 2 is installed on the top of the two sets of second sliders 8. A second slider 8 is installed on each sliding rod 7, and a mounting plate 2 is installed on the two second sliders 8. When the photovoltaic module needs to be welded, the push rod second slider 8 slides on the sliding rod 7, driving the hydraulic cylinder 3 on the mounting plate 2, thereby driving the welding assembly 5 at the bottom of the hydraulic cylinder 3 to move, so that the welding device 5 can accurately weld the photovoltaic module, thereby improving the practicality of the entire device.

[0032] Further, such as Figure 2As shown, an electric telescopic rod 9 is installed on the upper surface of the support frame 1, and a connecting plate 10 is installed on the output end of the electric telescopic rod 9. One side of the connecting plate 10 is connected to the side of the mounting plate 2. When the electric telescopic rod 9 is started, the electric telescopic rod 9 pushes the connecting plate 10 to move, thereby pushing the mounting plate 2 to move. The mounting plate 2 moves on the sliding rod 7 and on the groove 6 through the bottom slider 8, and the photovoltaic components are moved and welded, which improves the convenience of the device.

[0033] In this embodiment, if Figure 3 As shown, a welding table 11 is installed on the upper surface of the interior of the support frame 1, and a rectangular groove 12 is opened on the upper surface of the welding table 11. The welding table 11 on the support frame 1 is used for transmitting and welding photovoltaic modules. The photovoltaic modules are transported to the welding table 11 through the conveying guide rail 18. The welding assembly 5 on the upper part of the welding table 11 welds the photovoltaic modules. The rectangular groove 12 opened on the welding table 11 is used to place support parts and transmission parts, which facilitates the subsequent welding and transmission of photovoltaic modules and improves the convenience of the device.

[0034] Preferably, Figure 3 As shown, two groups of support blocks 13 are symmetrically installed inside the rectangular groove 12, and a support plate 14 is installed on the upper surface of each group of support blocks 13. Support blocks 13 are symmetrically installed on both sides of the rectangular groove 12. The support plate 14 installed on the upper part of the support block 13 is used for conveying the guide rail 18 to convey the photovoltaic component to the lower part of the welding component 5. The support plate 14 can support the edge of the photovoltaic component to play a role in supporting the optical component, thereby preventing the photovoltaic component from being damaged due to the uneven support surface when the welding component 5 is welded to it.

[0035] In addition, if Figure 3 As shown, the upper surface of each group of support blocks 13 is located on the side of the support plate 14 and is provided with several groups of circular grooves 15. A telescopic suction cup 16 is installed inside each group of circular grooves 15. When the conveying guide rail 18 conveys the photovoltaic module to the welding table 11, the telescopic suction cup 16 inside the circular groove 15 will extend to the bottom of the photovoltaic module to fix it, ensuring that the photovoltaic module will not move at will during welding, thereby protecting the safety of the photovoltaic module.

[0036] Preferably, Figure 3 As shown, two groups of suction pipes 17 are installed on one side of the welding table 11. The input end of each group of suction pipes 17 is connected to the telescopic suction cup 16 on the corresponding side. The suction pipes 17 and the telescopic suction cup 16 on the side of the welding table 11 cooperate with each other to fix the photovoltaic module on the welding table 11 to protect the welding process.

[0037] Further, such as Figure 3As shown, a conveying guide rail 18 is installed in the middle of the two groups of support blocks 13 inside the rectangular groove 12, and a conveying rack 19 is installed at the output end of the conveying guide rail 18. The conveying guide rail 18 in the middle of the rectangular groove 12 is used to convey the photovoltaic components to the welding table 11, and the conveying rack 19 on the conveying guide rail 18 is used to place the photovoltaic components and play a supporting role.

[0038] It is worth noting that if Figure 4 As shown, several groups of fixing plates 20 are installed on one side of the mounting frame 51, and the same scale plate 21 is installed on the same side of the several groups of fixing plates 20. The fixing plates 20 on the side of the mounting frame 51 are used to install the scale plate 21. The scale plate 21 can provide adjustment scales for the welding assembly 5, facilitate the adjustment of the welding assembly 5, and improve the practicality of the device.

[0039] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for a busbar-less photovoltaic module, comprising a support frame (1), characterized in that: A mounting plate (2) is slidably mounted on the top of the support frame (1), a hydraulic cylinder (3) is mounted on the upper surface of the mounting plate (2), a connecting block (4) is mounted on the output end of the hydraulic cylinder (3), and a welding assembly (5) is mounted on the lower portion of the connecting block (4); The welding assembly (5) includes a mounting frame (51) connected to the connecting block (4), and limit blocks (511) are respectively installed on both sides of the mounting frame (51). The upper surface of the mounting frame (51) is provided with a plurality of fixing grooves (52), and a plurality of first sliders (53) are slidably installed inside the mounting frame (51). A pin (54) is installed through the first slider (53) inside each group of the fixing grooves (52), and a positioning rod (55) is installed through the middle of each group of the first sliders (53). A screw hole (56) is provided on one side of each group of the first sliders (53), and a locking screw (57) is installed inside each group of the screw holes (56). A welding head (58) is installed at the end of each group of the positioning rods (55), and a collar (59) is installed at the connection between each group of the positioning rods (55) and the welding head (58).

2. The welding device for a busbar-less photovoltaic module according to claim 1, characterized in that: Two groups of grooves (6) are symmetrically formed on the upper surface of the support frame (1), and a sliding rod (7) is installed inside each group of grooves (6).

3. The welding device for a busbar-less photovoltaic module according to claim 2, characterized in that: A second sliding block (8) is slidably mounted on the middle portion of each set of sliding rods (7), and the tops of the two sets of second sliding blocks (8) are mounted with the same mounting plate (2).

4. The welding device for a busbar-less photovoltaic module according to claim 3, characterized in that: An electric telescopic rod (9) is installed on the upper surface of the support frame (1), and a connecting plate (10) is installed on the output end of the electric telescopic rod (9), and one side of the connecting plate (10) is connected to the side surface of the mounting plate (2).

5. The welding device for a busbar-less photovoltaic module according to claim 4, characterized in that: A welding platform (11) is installed on the upper surface inside the support frame (1), and a rectangular groove (12) is provided on the upper surface of the welding platform (11).

6. The welding device for a busbar-less photovoltaic module according to claim 5, characterized in that: Two groups of support blocks (13) are symmetrically installed inside the rectangular groove (12), and a support plate (14) is installed on the upper surface of each group of support blocks (13).

7. The welding device for a busbar-less photovoltaic module according to claim 6, characterized in that: The upper surface of each group of the support blocks (13) is provided with a plurality of groups of circular grooves (15) on the side of the support plate (14), and a telescopic suction cup (16) is installed inside each group of the circular grooves (15).

8. The welding device for a busbar-less photovoltaic module according to claim 7, characterized in that: Two groups of suction pipes (17) are installed on one side of the welding table (11), and the input end of each group of the suction pipes (17) is connected to the telescopic suction cup (16) on the corresponding side.

9. The welding device for a busbar-less photovoltaic module according to claim 8, characterized in that: A conveying guide rail (18) is installed in the middle of the two groups of support blocks (13) inside the rectangular groove (12), and a conveying frame (19) is installed at the output end of the conveying guide rail (18).

10. The welding device for busbar-less photovoltaic modules according to claim 9, characterized in that: Several groups of fixing plates (20) are installed on one side of the mounting frame (51), and the same scale plate (21) is installed on the same side of the several groups of fixing plates (20).

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