Photovoltaic module series welding machine convenient to position

Abstract

The utility model discloses a photovoltaic module series welding machine convenient to position, and relates to the technical field of series welding machines, the photovoltaic module series welding machine convenient to position comprises a rack, a welding transmission table, a welding unit and a pushing plate, two side end portions of the welding unit are respectively provided with an image assembly, each image assembly comprises a driving screw rod, an opposite sliding sleeve, a compression sleeve, a camera module and a lens, the tail end of each camera module is designed into an inclined plane, each lens is mounted on the inclined plane at the bottom end of the camera module, the problems of surface defects, cracks and the like of the battery pieces can be detected through the camera modules, and particularly, after welding, the lens is used for checking welding points between the two battery pieces, so that the welding quality of the battery pieces is improved. According to the invention, the welded battery piece is comprehensively detected, the welding defects can be quickly and accurately detected, and the defect positions are accurately positioned, so that maintenance personnel can quickly remove faults, the downtime of equipment is reduced, and the waiting time and the transmission delay in the production link are reduced.

Description

Technical Field

[0001] This utility model relates to the field of string welding machine technology, and in particular to a photovoltaic module string welding machine that is easy to position. Background Technology

[0002] String welding machines primarily connect photovoltaic cells into strings with a specific output voltage and current through welding. In practical applications, string welding equipment typically requires the following technologies:

[0003] 1. Transmission system: Responsible for transmitting photovoltaic cells;

[0004] 2. Welding system: Provides high temperature to melt the welding strip;

[0005] 3. Control system: Controls and monitors the overall operation of the string welding machine;

[0006] When current passes through the heating wire of a heating tube made of special materials, the heating tube radiates infrared rays of a certain wavelength. When the infrared rays are absorbed by an object, the object is heated. By adjusting the input power and other methods, the heating temperature of the infrared lamp can be controlled more precisely, ensuring a stable temperature curve during the welding process and better adapting to different welding process requirements.

[0007] The belt conveyor mechanism transports and aligns the battery cells for welding. The belt tension changes with usage time and ambient temperature. If the tension is too loose, the belt will slip easily, resulting in inaccurate battery cell transport distance. If the tension is too tight, the belt may undergo elastic deformation, which will also cause deviation in the battery cell transport position, affecting the alignment accuracy and welding quality. Utility Model Content

[0008] To address the shortcomings of existing technologies, this utility model provides a photovoltaic module string welding machine that is easy to position, solving the technical problem that belt conveyor mechanisms for aligning and welding solar cells can experience belt tension changes with usage time and ambient temperature, leading to slippage and inaccurate cell transmission distance.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A photovoltaic module string welding machine that is easy to position includes a frame, a welding transfer table, a welding unit, and a push plate. The welding unit is provided with image components at both ends. Each image component includes a drive screw, opposing sliding sleeves, a compression sleeve, a camera module, and a lens. The end of each camera module is designed with a bevel. Each lens is mounted on the bevel at the bottom end of the camera module. The internal threads of the two opposing sliding sleeves are designed in opposite directions.

[0011] Preferably, a temperature detector is fixedly installed on both sides of each of the camera modules;

[0012] A transmission line is fixedly installed on the side end of each of the opposing sliding sleeves;

[0013] Two inclined lighting strips are fixedly installed at the bottom of the welding unit, and a light shield is fixedly installed at the bottom of the welding unit. The installation length of the light shield is greater than that of the lighting strips.

[0014] A hydraulic assembly is fixedly installed on the side end of each welding unit, and the side end of each welding unit slides and docks with the frame.

[0015] Preferably, a pneumatic telescopic rod is installed at the bottom end of the push plate, and a drive screw is rotatably installed at the side end of the welding transfer table;

[0016] Each of the compression sleeves is a multi-segment telescopic structure, and a return spring is fixedly installed inside each telescopic compression sleeve.

[0017] The welding unit is equipped with at least two equally spaced infrared lamps.

[0018] Compared with the prior art, the present invention has the following beneficial effects;

[0019] In this invention, by symmetrically installing two sets of camera modules, the camera modules can capture the position and posture information of the battery cells in real time during transportation through the lens, and accurately control the transportation alignment of each pair of battery cells, making the welding quality more stable, enhancing the automatic detection and correction function, and enabling timely detection and correction of the position deviation of the battery cells.

[0020] In this invention, the camera module can detect surface defects and cracks in the battery cells. Especially after welding, the lens can be used to inspect the welding point between two battery cells, and a comprehensive inspection of the welded battery cells can be carried out. Welding defects can be detected quickly and accurately, and the defect location can be precisely located, which makes it convenient for maintenance personnel to quickly troubleshoot and reduce equipment downtime. Attached Figure Description

[0021] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0022] Figure 1 This is a structural diagram of the welding transfer table of this utility model;

[0023] Figure 2 This is a structural diagram of the welding unit of this utility model;

[0024] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0025] Figure 4 This is a structural diagram of the camera module of this utility model.

[0026] In the diagram: 11. Frame; 12. Welding transfer table; 13. Welding unit; 14. Push plate; 15. Drive screw; 16. Opposing sliding sleeve; 17. Transmission line; 18. Compression sleeve; 19. Camera module; 21. Lens; 22. Temperature detector; 23. Light shield; 24. Lighting strip; 25. Infrared lamp. Detailed Implementation

[0027] This application provides a photovoltaic module string welding machine that is easy to position. It effectively solves the problem of belt conveyor mechanism for aligning and welding solar cells. The belt tension changes with usage time and ambient temperature. If the tension is too loose, the belt will slip easily, resulting in inaccurate solar cell transmission distance. By symmetrically installing two sets of camera modules, the camera modules can capture the position and posture information of the solar cells in real time during transportation. This allows for precise control of the alignment of each pair of solar cells, making the welding quality more stable. It also enhances the automatic detection and correction function, enabling timely detection and correction of solar cell position deviations.

[0028] Example

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application embodiment effectively solves the technical problem that the belt tension changes with usage time and ambient temperature during the alignment and welding of battery cells in a belt conveyor mechanism. If the tension is too loose, the belt is prone to slippage, leading to inaccurate battery cell transmission distance. The overall approach is as follows:

[0030] To address the problems existing in the prior art, this utility model provides a photovoltaic module string welding machine that is easy to position, including a frame 11, a welding transfer table 12, a welding unit 13, and a pusher plate 14. Image components are provided at both ends of the welding unit 13. Each image component includes a drive screw 15, an opposing sliding sleeve 16, a compression sleeve 18, a camera module 19, and a lens 21. The end of each camera module 19 is designed with a bevel, and each lens 21 is mounted on the bevel at the bottom end of the camera module 19. Each compression sleeve 18 has a multi-segment telescopic structure. Each telescopic compression sleeve 18 is fixedly installed with a return spring. Camera modules 19 are installed on both sides of the welding unit 13. The lens 21 is tilted at the end of the camera module 19. The two camera modules 19 are symmetrically installed. The camera module 19 can capture the position and posture information of the battery cells in real time during transportation through the lens 21. It can accurately control the transportation alignment of each pair of battery cells, making the welding quality more stable, enhancing the automatic detection and correction function, and being able to detect and correct the position deviation of the battery cells in time.

[0031] In addition to assisting in the alignment of battery cells, the camera module 19 can detect surface defects, cracks, and other issues on the battery cells. Especially after welding, it can inspect the welding points between two battery cells and conduct a comprehensive inspection of the welded battery cells. It can quickly and accurately detect welding defects and precisely locate the defect locations, making it convenient for maintenance personnel to quickly troubleshoot and reduce equipment downtime.

[0032] Temperature detectors 22 are fixedly installed on both sides of each camera module 19. The temperature detectors 22 detect the welding temperature of the welding unit 13 to prevent the welding temperature from being too high, which would lead to unstable welding quality. Transmission lines 17 are fixedly installed on the sides of each opposing sliding sleeve 16. The image data captured by the camera module 19 is transmitted to the welding unit 13 through the transmission lines 17. The welding unit 13 analyzes the image and welds the battery cell after the welding position is aligned.

[0033] Two inclined lighting strips 24 are fixedly installed at the bottom of the welding unit 13. A light shield 23 is fixedly installed at the bottom of the welding unit 13. The installation length of the light shield 23 is greater than that of the lighting strips 24. The light shield 23 blocks the light emitted by the lighting strips 24 to prevent the light from scattering.

[0034] Hydraulic components are fixedly installed on the side end of each welding unit 13. The side end of each welding unit 13 is slidably connected to the frame 11. A pneumatic telescopic rod is installed at the bottom end of the push plate 14. A drive screw is rotatably installed on the side end of the welding transfer table 12, which moves the push plate 14 downward to press the top of the battery cell. By rotating the drive screw, the push plate 14 slides to one side to adjust the position of the battery cell. At least two infrared lamps 25 are installed equidistantly inside the welding unit 13, which heat the welding point through the infrared lamps 25.

[0035] The internal threads of the two opposing sliding sleeves 16 are designed to be opposite. By rotating the drive screw 15, the drive screw 15 rotates at the side end of the welding unit 13. The drive screw 15 is rotatably connected to the opposing sliding sleeves 16, driving the two opposing sliding sleeves 16 to move in opposite directions to adjust the distance between the camera modules 19, so that the camera modules 19 can be adjusted according to the size of the battery cells.

[0036] Working principle:

[0037] The first step is to re-examine and optimize the entire production process of the 210R photovoltaic modules. Based on the characteristics of the upgraded equipment and the requirements of the production process, the layout of the production line is redesigned, adopting straight, U-shaped, or circular layouts to make the connection between the various production equipment closer and more reasonable, minimize the material transmission distance, and improve the utilization rate of production space and production efficiency.

[0038] By installing camera modules 19 on both sides of the welding unit 13, and with the lens 21 at the end of the camera module 19 being tilted, the two sets of camera modules 19 are symmetrically installed. The camera modules 19 can capture the position and orientation information of the battery cells in real time during transportation through the lens 21, and accurately control the transportation alignment of each pair of battery cells, making the welding quality more stable, enhancing the automatic detection and correction function, and being able to detect and correct the positional deviation of the battery cells in a timely manner. Combined with a high-precision cell picking robot, the deviation between the welding point and the battery cell electrode is controlled within a very small range, such as within ±0.05 mm, thereby effectively avoiding problems such as poor welding and misaligned welding.

[0039] In the second step, a hydraulic assembly is fixedly installed on the side end of each welding unit 13, and the side end of each welding unit 13 slides and docks with the frame 11. A pneumatic telescopic rod is installed at the bottom end of the push plate 14, and a drive screw is rotatably installed on the side end of the welding transfer table 12 to move the push plate 14 downward to press the top of the battery cell. By rotating the drive screw, the push plate 14 slides to one side to adjust the position of the battery cell. At least two equidistant infrared lamps 25 are installed inside the welding unit 13 to heat the welding point.

[0040] Temperature detector 22 monitors the welding temperature of welding unit 13 to prevent excessive welding temperature and unstable welding quality. Each opposing sliding sleeve 16 has a transmission line 17 fixedly installed on its side end, transmitting image data captured by camera module 19 to welding unit 13. Welding unit 13 analyzes the images, aligns the welding positions, and then welds the battery cells. Temperature changes in the welding area are monitored in real time, and the data is transmitted to the intelligent control system to adjust the welding lamp power parameters, achieving precise control of the welding temperature. This ensures that the welding temperature remains within the optimal process range throughout the entire welding process.

[0041] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A photovoltaic module string welder with facilitated positioning, comprising a frame (11), a welding transport table (12), a welding unit (13) and a pusher plate (14), characterized in that, Both side ends of the welding unit (13) are provided with image assemblies, each of which comprises a driving screw rod (15), a counter sliding sleeve (16), a compression sleeve (18), a camera module (19) and a lens (21), the end of each camera module (19) is designed as a slope, each lens (21) is installed on the slope at the bottom end of the camera module (19), and the internal threads of the two counter sliding sleeves (16) are designed in opposite directions.

2. A photovoltaic module stringer welder for ease of positioning as defined in claim 1, wherein, Both side ends of each camera module (19) are fixedly installed with a temperature detector (22).

3. A photovoltaic module stringer welder for ease of positioning as defined in claim 1, wherein, The side end of each counter sliding sleeve (16) is fixedly installed with a transmission line (17).

4. A photovoltaic module stringer welder for ease of positioning as defined in claim 1, wherein, The bottom end of the welding unit (13) is fixedly installed with two obliquely installed lighting lamp strips (24), the bottom end of the welding unit (13) is fixedly installed with a light shield (23), and the installation length of the light shield (23) is greater than that of the lighting lamp strip (24).

5. A photovoltaic module stringer welder for ease of positioning as defined in claim 1, wherein, The side end of each welding unit (13) is fixedly installed with a hydraulic assembly, and the side end of each welding unit (13) is in sliding connection with the rack (11).

6. A photovoltaic module stringer welder for ease of positioning as defined in claim 1, wherein, The bottom end of the pushing plate (14) is installed with a pneumatic telescopic rod, and the side end of the welding transmission table (12) is rotatably installed with a driving screw rod.

7. A photovoltaic module stringer welder for ease of positioning as defined in claim 1, wherein, Each compression sleeve (18) is a multi-section telescopic structure, and each telescopic compression sleeve (18) is fixedly installed with a reset spring in the inside.

8. A photovoltaic module stringer welder for ease of positioning as defined in claim 1, wherein, The welding unit (13) is internally provided with at least two equidistantly installed infrared lamp tubes (25).

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