Battery string welding device

Abstract

The utility model discloses a battery string welding device is provided with motor moving part and welding part on the frame body, and the welding part includes the welding base, is connected with the welding base plate on the welding base plate, is assembled with the welding module on the welding base plate, and is installed with the welding pressure block below the welding module, the frame body includes the frame platform, is provided with the correction part on the frame platform, and the correction part includes the frame platform, and the side of frame platform sets up the limit cylinder, is provided with the limit stopper on the limit cylinder, and the inboard of frame platform is provided with the fixed edge, and the outside of frame platform is provided with the mobile edge of the push clamp inner shift, and the mobile edge is fixed by the correction support, and is provided with the avoidance notch of the correction support in and out on the frame platform. This novel structure, because set up the correction part, can automatically to place the clamp of different specifications battery string correct homing, improved the automation level of welding different specifications battery string, thereby improved the production efficiency of battery.

Description

Technical Field

[0001] This utility model relates to the field of solar cell manufacturing technology, and in particular to a battery string welding device. Background Technology

[0002] A photovoltaic (PV) module consists of PV cells connected in series to form a cell string, which is then connected in series or parallel via busbars to conduct current outwards. A busbar is a conductive strip that connects the electrical energy generated by the PV cells; it is also called a cell connector. The busbar is connected to the cells through a welding process to ensure efficient current transmission. In a PV module, multiple welding strips are laid parallel to each other on the surface of the cells, with the ends of the welding strips extending to both sides of the cells and welding them to the busbars. The function of the busbar is to collect and transmit the current generated by the cells to the junction box.

[0003] The existing process of connecting battery strings by welding busbars requires separate, manual operation, which severely impacts the automation rate of battery production and significantly reduces production efficiency. Furthermore, manual welding or handling not only greatly reduces production efficiency but also leads to safety and workload issues. Moreover, the increasing labor costs objectively raise the overall cost of battery production.

[0004] On the other hand, the dimensions of battery strings formed by combining battery cells of different specifications (cells with different numbers or spacings of grids) vary, posing a challenge to automated production. Therefore, improving the automation level of welding battery strings of different specifications and increasing battery production efficiency are urgent problems that the industry needs to solve. Utility Model Content

[0005] The purpose of this invention is to provide a battery string welding device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical measures: a battery string welding device, comprising a frame body, characterized in that: a motor moving part is provided on the frame body, the motor moving part includes an upper plate, a welding part is provided on the motor moving part, the welding part includes a welding base fixedly connected to the upper plate, a welding bottom plate is slidably connected to the welding base via a welding guide rail, a welding module is mounted on the welding bottom plate, and a welding pressure block for pressure welding busbars is installed below the welding module; the frame body includes a frame platform, a straightening part is provided on the frame platform, the straightening part includes a welding platform for placing a fixture, a limit cylinder is provided on the side of the welding platform, a limit stop block is provided on the limit cylinder to block the forward movement of the fixture, a fixed side is provided on the inner side of the welding platform to block the inward movement of the fixture, a moving side is provided on the outer side of the welding platform to push the fixture inward, the moving side is fixed by a straightening bracket, and an avoidance slot is provided on the welding platform to allow the straightening bracket to enter and exit.

[0007] Compared with the prior art, the advantages of this utility model are: this new structure, due to the setting of the correction part, can automatically correct and position the fixture holding battery strings of different specifications, improve the automation level of welding battery strings of different specifications, and thus improve the production efficiency of batteries.

[0008] As an improvement of this utility model, the correction bracket is fixed on the correction base, the correction base is fixed on the correction guide rail, and the correction cylinder is installed on the back of the welding platform. The purpose of this design is to use the correction cylinder to drive the correction base, which in turn drives the correction bracket, thereby allowing the moving edge of the correction bracket to push the clamps with different tilt angles, ultimately achieving uniform placement of the clamps and facilitating automatic welding of battery strings on the clamps.

[0009] As an improvement of this utility model, a stroke buffer device is provided on the welding base. The purpose of this design is to allow for a slow deceleration process when the welding module resets, thereby reducing vibration.

[0010] As an improvement of this utility model, the welding base plate is fixed to the welding base by two sets of parallel welding guide rails. The purpose of this design is that the two sets of parallel welding guide rails make the welding base plate more stable and facilitate the expansion of the number of welding modules assembled on the welding base plate.

[0011] As an improvement of this utility model, the motor moving part includes a drive motor, which is fixedly connected to a slide table via a lead screw. One end of the slide table is connected to a guide rail, and the other end of the slide table is connected to an upper plate. The purpose of this design is that the lead screw slide table transmission structure offers high positioning accuracy, low friction, high rigidity, and strong load capacity. As another improvement of this utility model, a dust cover is provided between the slide table and the upper plate. The purpose of this design is to prevent dust and other debris from entering the gaps between the guide rail and other parts, thereby improving the service life of the components. Attached Figure Description

[0012] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0013] In the attached diagram:

[0014] Figure 1 This is a three-dimensional schematic diagram of the battery string welding device described in this utility model.

[0015] Figure 2 This is a three-dimensional schematic diagram of the corrective part described in this utility model. Figure 1 .

[0016] Figure 3 This is a three-dimensional schematic diagram of the moving part of the motor described in this utility model.

[0017] Figure 4 This is a three-dimensional schematic diagram of the welded part described in this utility model.

[0018] Figure 5 This is a three-dimensional schematic diagram of the battery string with busbars described in this utility model on the fixture.

[0019] Figure 6 is a three-dimensional schematic diagram of the corrective part described in this utility model. Figure 2 .

[0020] Figure 7 is a perspective view of the correcting cylinder of this utility model. Reference numerals: 1. Frame; 2. Motor moving part; 3. Upper plate; 4. Welding part; 5. Welding base; 6. Welding guide rail; 7. Welding base plate; 8. Welding module; 9. Welding pressure block; 10. Frame platform; 11. Correcting part; 12. Fixture; 14. Limiting cylinder; 15. Limiting stop; 16. Fixed side; 17. Moving side; 18. Correcting bracket; 19. Clearance slot; 20. Correcting base; 21. Correcting guide rail; 22. Correcting cylinder; 23. Stroke buffer device; 24. Drive motor; 25. Slide table; 26. Moving guide rail; 27. Dust cover; 28. Battery string; 29. ​​Welding cylinder; 30. Busbar; 31. Fixed bracket; 32. Conveyor belt. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0022] Example 1

[0023] Please refer to Figure 1 -7.

[0024] This embodiment provides a battery string welding device, including a frame body 1, which serves as the supporting foundation for the entire device.

[0025] In the embodiments of this utility model application, such as Figure 3 The aforementioned structure includes a motor moving part 2 mounted on the frame 1. This motor moving part 2 comprises a drive motor 24, which is fixedly connected to a slide table 25 via a lead screw. One end of the slide table 25 is connected to a moving guide rail 26, and the other end is connected to an upper plate 3. This lead screw and slide table 25 transmission structure offers high positioning accuracy, low friction, high rigidity, and strong load capacity. Alternatively, a synchronous belt can be used as an alternative. Since both of these structural designs are existing technologies, they will not be elaborated upon here.

[0026] Furthermore, a welding part 4 is provided on the motor moving part 2.

[0027] In the embodiments of this utility model application, such as Figure 4 The welding section 4 includes a welding base 5 fixedly connected to the upper plate 3. A welding base plate 7 is slidably connected to the welding base 5 via welding guide rails 6. In this embodiment, the welding base plate 7 is fixed to the welding base 5 by two sets of parallel welding guide rails 6. The two sets of parallel welding guide rails 6 make the welding base plate 7 more stable and facilitate the expansion of the number of welding modules 8 assembled on the welding base plate 7. In this embodiment, three sets of welding modules 8 work together to improve welding efficiency. A welding pressure block 9 for pressure welding busbar 30 is installed below each set of welding modules 8. It should be noted that the welding module 8 can be hot air welding, electromagnetic welding, or resistance welding, etc.

[0028] The frame body 1 includes a frame platform 10, on which a correction part 11 is provided. The function of the correction part 11 is to make the various clamps 12 with different tilt angles placed on the welding platform have the same direction after correction, so that the welding position of the battery string placed in the clamp 12 is consistent.

[0029] In the embodiments of this utility model application, such as Figure 2 and Figure 6 The correction unit 11 includes a welding platform for placing the clamp 12, and a conveyor belt 32 for moving the clamp 12 forward is provided on the welding platform. A limit cylinder 14 is provided on the side of the welding platform, and a limit block 15 is provided on the limit cylinder 14 to block the clamp 12 from moving forward, thereby ensuring that the lateral position of the clamp 12 remains unchanged.

[0030] Furthermore, the inner side of the welding platform is provided with a fixed side 16 to block the inward movement of the clamp 12, and the fixed side 16 is connected by a fixed bracket 31 provided on the welding platform. The outer side of the welding platform is provided with a movable side 17 to push the clamp 12 inward. During operation, the movable side 17 can push the clamp 12 forward toward the fixed side 16, thereby ensuring that the longitudinal position of the clamp 12 remains unchanged.

[0031] Furthermore, the movable edge 17 is fixed by the straightening bracket 18, and the welding platform is provided with an obstacle clearance slot 19 that allows the straightening bracket 18 to enter and exit. The obstacle clearance slot 19 is designed to accommodate battery strings 28 of different specifications, whose corresponding clamps 12 have different widths. If the clamps 12 for certain battery string models are narrower, the straightening bracket 18 will enter the obstacle clearance slot until the movable edge 17 can firmly clamp the clamp 12. Without this obstacle clearance slot 19, for narrower clamps 12, the movable edge 17 may not be able to reach the clamp 12 due to interference from the welding platform, thus failing to secure the clamp 12.

[0032] In the embodiments of this utility model application, such as Figure 2 and Figure 7 The correction bracket 18 is fixed to the correction base 20, the correction base 20 is fixed to the correction guide rail 21, and the correction cylinder 22 is installed on the back of the welding platform (see...). Figure 7 (Schematic diagram from the back of the welding platform). The straightening cylinder 22 drives the straightening base 20, which in turn drives the straightening bracket 18. This causes the moving edge 17 on the straightening bracket 18 to push the clamps 12 with different tilt angles, ultimately achieving the goal of aligning the clamps 12 for automatic welding of the battery strings 28 on the clamps 12.

[0033] Furthermore, the welding base 5 is equipped with a stroke buffer device 23. When the welding module 8 is reset, there is a slow deceleration process, thereby reducing vibration.

[0034] Furthermore, a dust cover 27 is provided between the slide table 25 and the upper plate 3. This prevents dust and other debris from entering the gaps between the guide rails and other parts, thereby improving the service life of the components.

[0035] The battery string welding device provided in this embodiment has the following operation: a clamp 12 with a battery string 28 having a busbar 30 is placed on it and put into the welding platform from the previous process by a conveyor belt or a robot arm. Under the conveyor belt 32 on the welding platform, the string encounters the limit block 15 on the limit cylinder 14. Then, the moving side 17 works to push the clamp 12 to the fixed side 16 and clamp it. The welding cylinder 29 drives the welding module 8 to perform the welding operation.

[0036] The beneficial effects of this utility model are as follows: This new structure, due to the setting of the correction part 11, can automatically correct and return the clamp 12 containing battery strings 28 of different specifications to their correct positions, thereby improving the automation level of welding battery strings 28 of different specifications and thus improving the production efficiency of batteries.

[0037] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery string welding apparatus comprising a frame body (1), characterised in that in The rack body (1) is provided with a motor moving part (2), the motor moving part (2) includes an upper flat plate (3), a welding part (4) is arranged on the motor moving part (2), the welding part (4) includes a welding base (5) fixedly connected with the upper flat plate (3), a welding bottom plate (7) is slidably connected with the welding base (5) through a welding guide rail (6), a welding module (8) is assembled on the welding bottom plate (7), and a welding pressure block (9) for pressing welding bus bars is installed below the welding module (8); the rack body (1) includes a rack platform (10), a correction part (11) is arranged on the rack platform (10), the correction part (11) includes a welding platform for placing a clamp (12), a limiting air cylinder (14) is arranged on the side of the welding platform, a limiting stopper (15) for stopping the clamp (12) from moving forward is arranged on the limiting air cylinder (14), a fixed side (16) for stopping the clamp (12) from moving inward is arranged on the inner side of the welding platform, a moving side (17) for pushing the clamp (12) to move inward is arranged on the outer side of the welding platform, the moving side (17) is fixed by a correction support (18), and an avoiding notch (19) for allowing the correction support (18) to enter and exit is arranged on the welding platform.

2. The battery string welding apparatus of claim 1, wherein: The correction support (18) is fixed on a correction base (20), the correction base (20) is fixed on a correction guide rail (21), and the correction base (20) is driven by a correction air cylinder (22) fixedly installed on the back of the welding platform.

3. The battery string welding apparatus of claim 1, wherein: The welding base (5) is provided with a stroke buffering device (23).

4. The battery string welding apparatus of claim 1, wherein: The welding bottom plate (7) is fixed on the welding base (5) through two sets of parallel welding guide rails (6).

5. The battery string welding apparatus of claim 1, wherein: The motor moving part (2) includes a driving motor (24), the driving motor (24) is fixedly connected with a sliding table (25) through a lead screw, one end of the sliding table (25) is connected with a moving guide rail (26), and the other end of the sliding table (25) is connected with the upper flat plate (3).

6. The battery string welding apparatus of claim 5, wherein: A dustproof cover (27) is arranged between the sliding table (25) and the upper flat plate (3).

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