Tinning device for photovoltaic solder strip

Abstract

The utility model provides a photovoltaic solder strip tinning device, which comprises a tin liquid tank and an electric heater, a connecting frame is arranged above the tin liquid tank, the lower side of the connecting frame is respectively connected with a steering wheel I, a steering wheel II and a steering wheel III, the steering wheel I, the steering wheel II and the steering wheel III are sequentially arranged from outside to inside, and the electric heater is arranged on the connecting frame. A scraper plate is arranged between the first steering wheel and the second steering wheel, a tin liquor spray head is arranged between the second steering wheel and the third steering wheel, a supporting frame is fixedly connected to the lower side face of the connecting plate, the connecting frame is fixedly installed on the lower side of the supporting frame, jacking air cylinders are installed on the front side and the rear side of the tin liquor tank correspondingly, and the top ends of the jacking air cylinders are fixedly connected with the supporting frame. And a lifting cylinder is mounted on the connecting plate. According to the tin plating device, soaking tin plating and spraying tin plating are carried out on the surface of the copper strip, the tin plating thickness is controlled through the scraper plate, it is guaranteed that the tin plating thickness of the surface of the copper strip is consistent, and the copper strip and a battery piece can be fully welded and fixed conveniently.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic solder ribbon technology, and in particular to a tin plating device for photovoltaic solder ribbon. Background Technology

[0002] Photovoltaic solder ribbon, also known as tin-plated copper ribbon or tin-coated copper ribbon, is divided into busbars and interconnecting strips, and is used to connect the cells of photovoltaic modules.

[0003] In the existing technology, when tinning photovoltaic solder strips, the copper strip is usually immersed directly into the tinning solution, then taken out of the tinning solution and dried. This can easily cause inconsistent tinning thickness on the copper strip, with some areas being thick and others thin, which in turn affects the welding stability between the tinned copper strip and the solar cell. Utility Model Content

[0004] The present invention aims to provide a tin-plating device for photovoltaic solder ribbons to overcome or at least partially solve the above-mentioned problems.

[0005] To achieve the above objectives, the technical solution of this utility model is specifically implemented as follows:

[0006] This utility model provides a tin plating device for photovoltaic solder strips, including a tin bath and an electric heater. The electric heater is installed at the bottom of the tin bath. A connecting frame is provided above the tin bath. A first steering wheel, a second steering wheel, and a third steering wheel are respectively connected to the lower side of the connecting frame. The first, second, and third steering wheels are arranged sequentially from the outside to the inside. A scraper is provided between the first and second steering wheels. A tin spray head is provided between the second and third steering wheels. The tin spray head is connected to a delivery pump through a delivery pipe. The delivery pump is fixedly installed at the top of the connecting plate, and the other end of the delivery pump is connected to the tin bath through a pipe. A support frame is fixedly connected to the lower side of the connecting plate. The connecting frame is fixedly installed on the lower side of the support frame. Lifting cylinders are installed on the front and rear sides of the tin bath. The top of the lifting cylinder is fixedly connected to the support frame. A lifting cylinder is installed on the connecting plate. The telescopic rod on the lower side of the lifting cylinder is connected to the scraper.

[0007] As a further embodiment of this utility model, a tin liquid outlet is provided on the rear side of the tin liquid tank, and one end of a pipe is connected to the tin liquid outlet, while the other end of the pipe is connected to a delivery pump.

[0008] As a further embodiment of this utility model, the support frame has a U-shaped structure.

[0009] As a further embodiment of this utility model, a connecting rod is fixedly installed on the upper side of the molten tin nozzle, and the connecting rod is fixedly installed on the lower side of the connecting plate.

[0010] This utility model provides a tin plating device for photovoltaic solder strips. The advantages are: it realizes immersion tin plating and spray tin plating on the surface of copper strips, and the tin plating thickness is controlled by the scraper plate, which ensures that the tin plating thickness on the surface of copper strips is consistent, which facilitates the full welding and fixing of copper strips and solar cells. The operation is simple and the tin plating effect is good. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the tin melt nozzle in this utility model.

[0014] Figure 3 This is a schematic diagram of the support frame in this utility model.

[0015] Figure 4 This is a top view of the rotating wheel three in this utility model.

[0016] Figure 5 This is a side view of the steering wheel three in this utility model.

[0017] In the diagram: 1. Solder bath; 2. Scraper blade; 3. Solder nozzle; 4. Connecting frame; 5. Electric heater; 6. Support frame; 7. Lifting cylinder; 8. Steering wheel one; 9. Steering wheel two; 10. Steering wheel three; 11. Conveying pump; 12. Connecting plate; 13. Lifting cylinder; 14. Solder outlet; 31. Conveying pipe. Detailed Implementation

[0018] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0019] See Figure 1-5This utility model provides a tin plating device for photovoltaic solder ribbon, including a tin bath 1 and an electric heater 5. The electric heater 5 is installed at the bottom of the tin bath 1. A connecting frame 4 is provided above the tin bath 1. A first steering wheel 8, a second steering wheel 9, and a third steering wheel 10 are respectively connected to the lower side of the connecting frame 4. The first steering wheel 8, the second steering wheel 9, and the third steering wheel 10 are arranged sequentially from the outside to the inside. A scraper plate 2 is provided between the first steering wheel 8 and the second steering wheel 9. A tin spray head 3 is provided between the second steering wheel 9 and the third steering wheel 10. The liquid nozzle 3 is connected to the delivery pump 11 through the delivery pipe 31. The delivery pump 11 is fixedly installed on the top of the connecting plate 12, and the other end of the delivery pump 11 is connected to the tin bath 1 through the pipe. A support frame 6 is fixedly connected to the lower side of the connecting plate 12. A connecting frame 4 is fixedly installed on the lower side of the support frame 6. Lifting cylinders 7 are installed on the front and rear sides of the tin bath 1. The top of the lifting cylinder 7 is fixedly connected to the support frame 6. A lifting cylinder 13 is installed on the connecting plate 12. The telescopic rod on the lower side of the lifting cylinder 13 is connected to the scraper plate 2.

[0020] The molten tin tank 1 has a molten tin outlet 14 on its rear side, and one end of the pipe is connected to the molten tin outlet 14. The other end of the pipe is connected to the delivery pump 11, so that the molten tin in the hot melt state can be sent into the delivery pump 11 and then sent into the molten tin nozzle 3 by the delivery pump 11 and sprayed out.

[0021] The support frame 6 has a U-shaped structure, which makes it easy to place the support frame 6 above the molten solder tank 1.

[0022] A connecting rod is fixedly installed on the upper side of the molten tin nozzle 3. The connecting rod is fixedly installed on the lower side of the connecting plate 12, which achieves the purpose of providing stable support for the molten tin nozzle 3 and controlling the spraying direction of the molten tin nozzle 3.

[0023] In the process of using this utility model, the copper strip passes through the first steering wheel 8, the second steering wheel 9 and the third steering wheel 10 from right to left. Then the delivery pump 11 is run to draw out the molten tin in the tin bath 1 and spray it out from the tin nozzle 3 and coat it on the surface of the copper strip. Then, as the copper strip moves from right to left, it passes through the scraper plate 2. At this time, the scraper plate 2 scrapes off the excess tin plating on the surface of the copper strip.

[0024] Simultaneously, the operation of the lifting cylinder 7 can drive the support frame 6 to move downward, thereby synchronously driving the connecting frame 4, steering wheel 8, steering wheel 9, and steering wheel 10 to move downward, so that the bottom of the copper strip enters the tin bath 1 and the surface of the copper strip is tinned. At the same time, the steering wheel 8 and steering wheel 9 are located on the upper side of the tin bath 1 to avoid contact with the tin liquid, so that the excess tin plating on the copper strip can be scraped off by the scraper plate 2 when the copper strip is moving.

[0025] The operation of the lifting cylinder 13 can drive the scraper plate 2 to move up and down, thereby adjusting the distance between the bottom end of the scraper plate 2 and the surface of the copper strip, and thus controlling the tin plating thickness of the copper strip surface.

[0026] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A tin plating apparatus for photovoltaic solder ribbon, comprising a tin bath (1) and an electric heater (5), wherein the electric heater (5) is installed at the inner bottom of the tin bath (1), characterized in that, A connecting frame (4) is provided above the molten tin tank (1). A first steering wheel (8), a second steering wheel (9), and a third steering wheel (10) are connected to the lower side of the connecting frame (4). The first steering wheel (8), the second steering wheel (9), and the third steering wheel (10) are arranged sequentially from the outside in. A scraper plate (2) is provided between the first steering wheel (8) and the second steering wheel (9). A molten tin nozzle (3) is provided between the second steering wheel (9) and the third steering wheel (10). The molten tin nozzle (3) is connected to a delivery pump (11) via a delivery pipe (31). 11) Fixedly installed on the top of the connecting plate (12), and the other end of the delivery pump (11) is connected to the tin bath (1) through a pipe. A support frame (6) is fixedly connected to the lower side of the connecting plate (12). The connecting frame (4) is fixedly installed on the lower side of the support frame (6). Lifting cylinders (7) are installed on the front and rear sides of the tin bath (1). The top of the lifting cylinder (7) is fixedly connected to the support frame (6). A lifting cylinder (13) is installed on the connecting plate (12). The telescopic rod on the lower side of the lifting cylinder (13) is connected to the scraper plate (2).

2. The tin plating apparatus for photovoltaic solder ribbon according to claim 1, characterized in that, The tin bath (1) has a tin outlet (14) on its rear side, and one end of a pipe is connected to the tin outlet (14), and the other end of the pipe is connected to the delivery pump (11).

3. The tin plating apparatus for photovoltaic solder ribbon according to claim 1, characterized in that, The support frame (6) has a U-shaped structure.

4. The tin plating apparatus for photovoltaic solder ribbon according to claim 1, characterized in that, A connecting rod is fixedly installed on the upper side of the molten tin nozzle (3), and the connecting rod is fixedly installed on the lower side of the connecting plate (12).

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