Photovoltaic module junction box outgoing line and tool contact guiding and stirring device

By designing a photovoltaic module junction box detection device combining X-axis, Y-axis, Z-axis linear modules and vision cameras, using AI software to perform positioning and welding quality analysis, the problem of false welding detection and low manual provocation detection efficiency in the existing technology is solved, and efficient and accurate automated detection is achieved.

CN119804498APending Publication Date: 2025-04-11温英光
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Patent Information

Application Number
CN202510000675.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-02
Publication Date
2025-04-11

AI Technical Summary

Technical Problem

In the prior art, when detecting the welding quality of photovoltaic module junction boxes, especially in electromagnetic welding processes, it is difficult to effectively detect false welding defects, and manual provocation detection has problems of subjectivity and low efficiency.

Method used

A photovoltaic module junction box lead-out line and guide tooling contact provocation device is designed, using an X-axis, Y-axis, Z-axis linear module and a visual camera combination to perform positioning, provocation detection and welding quality analysis through AI software to achieve automated detection.

Benefits of technology

Through the combination of visual camera and AI software, accurate positioning and defect detection of the docking box are achieved, breaking through the limitations of manual subjective judgment, improving the stability and accuracy of detection, and automated detection greatly compresses the working time and improves production efficiency.

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Abstract

The invention relates to the technical field of detection devices, in particular to a photovoltaic module junction box outgoing line and tool contact guiding and stirring device. The device comprises an X-axis linear module, the X-axis linear module is in driving connection with a first fixing plate, the first fixing plate is provided with a Y-axis linear module, the Y-axis linear module is in driving connection with a second fixing plate, one side of the front face of the second fixing plate is provided with a Z-axis linear module, the Z-axis linear module is in driving connection with a third fixing plate, and the front face of the third fixing plate is provided with a second mounting rod. A third fixing profile is arranged on the right side of the second mounting rod. Through combination of visual camera photographing and AI software identification, junction box positioning and defect detection work can be directly carried out, the camera accurately captures pictures from multiple visual angles, the AI software deeply analyzes image information, data processing is carried out, complex images are converted into accurate coordinates and state data, each detection action is executed according to a unified accurate standard, and the detection efficiency is greatly improved. And the detection deviation caused by personnel difference is thoroughly eliminated.
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Description

Technical Field

[0001] The invention relates to the technical field of detection devices, and in particular to a photovoltaic component junction box lead-out wire and guide tool contact and provocation device. Background Art

[0002] Photovoltaic panels absorb sunlight and use the photoelectric effect to convert light energy into electrical energy. Although photovoltaic panels are also called solar panels, they do not have energy storage functions themselves. They are just power generation devices. The current generated by light energy through photovoltaic panels needs to be introduced into the external circuit and then transported to the energy storage device or electrical equipment. In the process of transferring the electricity from photovoltaic panels to the external circuit, a component is needed to act as a bridge. This component is the junction box. The current generated by the solar panel is drawn out and introduced into the electrical equipment through the wiring terminals and connectors inside the junction box. In addition, the bypass diode inside the junction box can also effectively prevent the hot spot effect and protect the battery cells and components. The circuit connection between the photovoltaic panel and the junction box is achieved by welding, so the quality of welding is directly related to whether the photovoltaic panel can be used.

[0003] Different welding methods of junction boxes correspond to different detection methods. Nowadays, there are two main welding methods used on various photovoltaic module assembly lines: laser welding and electromagnetic welding (tinning welding). For laser welding, its welding detection is mainly carried out by taking pictures with a visual camera, supplemented by AI recognition for defect detection. Due to its unique welding process, this method can effectively detect various welding defects. However, the welding process of electromagnetic welding (tinning welding) is helpless against the defect of virtual welding by using camera photography and AI recognition. In the actual production process, in the welding process production line using electromagnetic welding (tinning welding), manual manual picking of the junction box welding is often used to determine whether the welding is firm. Due to the different operating habits and proficiency of different people, there is often no unified standard for the detection of welding defects in the manual detection method. Secondly, manual labor will be limited by physical strength. For enterprises pursuing efficiency and production capacity, a new type of equipment is urgently needed to replace manual labor to do this simple and repetitive action. This is the requirement for the informatization and intelligence of the production line, and it is also a partial reflection of the national intelligent manufacturing development strategy in the photovoltaic manufacturing industry. Summary of the invention

[0004] The object of the present invention is to provide a photovoltaic module junction box lead-out wire and guide tool contact and actuation device to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution, which includes an X-axis linear module, the X-axis linear module is driven and connected to a fixed plate one, the fixed plate one is provided with a Y-axis linear module, the Y-axis linear module is driven and connected to a fixed plate two, a Z-axis linear module is provided on the front side of the fixed plate two, the Z-axis linear module is driven and connected to a fixed plate three, the front side of the fixed plate three is provided with a mounting rod two, the right side of the mounting rod two is provided with a third fixed profile, and the front side of the third fixed profile is provided with an actuator.

[0006] As a preferred embodiment of the present invention, a mounting rod 1 is provided on the other side of the front face of the second fixing plate, a first fixing profile is provided on the side face of the first fixing profile, and a first visual camera is provided on the first fixing profile.

[0007] As a preferred embodiment of the present invention, a second fixed profile is arranged on the left side of the second mounting rod, and a second visual camera is arranged on the front side of the second fixed profile.

[0008] As a preferred embodiment of the present invention, the actuator is an elastic paddle.

[0009] As a preferred embodiment of the present invention, the detection viewing angle of the first visual camera is set vertically downward, the detection viewing angle of the second visual camera is set obliquely downward, and the detection viewing angles of the first visual camera and the second visual camera are aligned with the same position.

[0010] The principle of the AI ​​analysis software of the present invention is: first, the junction box is positioned by the first visual camera and the second visual camera, and then the AI ​​control device moves to the position of the junction box, and then a picking detection is performed. During the picking process, the oblique second visual camera shoots the video, and AI analyzes the quality structure of the welding. When the number of detections is equal to 3, poor welding is manually repaired, and normal welding proceeds to the next process; when the number of detections is less than three, the device as a whole will control the actuator 14 to move to the next junction box position for continued detection.

[0011] Compared with the prior art, the above technical solution of the present invention has the following beneficial technical effects:

[0012] 1. The present invention can directly locate and detect defects of junction boxes through the combination of visual camera photography and AI software recognition. The camera accurately captures images from multiple perspectives, and the AI ​​software deeply analyzes image information and processes it in a digital way, converting complex appearances into precise coordinates and status data, thereby breaking through the limitations of manual subjective judgment. Regardless of which operator uses it, each detection action is performed according to a unified and precise standard, completely eliminating detection deviations caused by personnel differences, and ensuring that the junction box detection results are stable and accurate.

[0013] 2. The present invention replaces direct manual operation through the cooperation of the actuator and the servo drive. In the past, manual close handling of the junction box faced many risks such as electric shock and injury caused by misoperation. Now, the actuator like a robotic arm is under the precise control of the servo drive, and its movements are strictly in accordance with the preset program specifications. The whole process is stable and controllable, eliminating potential safety hazards and making the working environment safe and worry-free.

[0014] 3. The present invention is fully automated, with each module working together, each process being closely and efficiently connected, visual positioning, mechanical execution, and detection feedback, thus avoiding the drawbacks of procrastination and fatigue-induced efficiency reduction in manual operation. In the same time, the number of junction boxes processed far exceeds that of manual operation, which greatly shortens the operation time, increases production efficiency by multiples, and makes production more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the present invention from a front perspective;

[0017] Figure 3 This is a functional block diagram of the AI ​​software of the present invention.

[0018] Figure numerals: X-axis linear module 1, fixed plate 1 2, Y-axis linear module 3, Z-axis linear module 4, fixed plate 2 5, mounting rod 1 6, first fixed profile 7, first visual camera 8, fixed plate 3 9, mounting rod 2 10, second fixed profile 11, third fixed profile 12, second visual camera 13, actuator 14. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0020] like Figure 1-Figure 3 As shown, the present invention proposes a photovoltaic module junction box lead-out wire and guide tool contact and stirring device, comprising an X-axis linear module 1, and the X-axis linear module 1 is driven and connected to a fixed plate 2, so that the fixed plate 2 can smoothly perform linear reciprocating motion along the X-axis direction under the drive of the X-axis linear module 1;

[0021] A Y-axis linear module 3 is installed on the fixed plate 1 2, and the fixed plate 2 5 is connected to the Y-axis linear module 3 by driving. A Z-axis linear module 4 is installed on the front side of the fixed plate 2 5, and the Z-axis linear module 4 is connected to the fixed plate 3 9 by driving, so that the fixed plate 3 9 can move linearly along the axis. The mounting rod 2 10 is fixed on the front side of the fixed plate 3 9, and the third fixed profile 12 is firmly installed on the right side of the mounting rod 2 10. The elastic paddle (actuator 14) is installed on the front side of the third fixed profile 12, so as to perform the corresponding action later.

[0022] Install a mounting rod 1 6 on the other side of the front of the fixing plate 2 5, install a first fixing profile 7 on the side of the mounting rod 1 6, and install a first visual camera 8 on the first fixing profile 7, and adjust the camera angle to ensure that its detection angle is vertically downward so that it can clearly capture the target image below;

[0023] Install the second fixed profile 11 on the left side of the second mounting rod 10, install the second visual camera 13 on the front of the second fixed profile 11, and carefully adjust its angle so that the detection angle of view is diagonally downward and aligned with the detection angle of view of the first visual camera 8 at the same position to meet the needs of collaborative work, ensure the effectiveness and accuracy of image acquisition, and provide accurate visual data support for subsequent positioning, detection and other tasks.

[0024] When working, the first visual camera 8 (whose detection angle of view is vertically downward) is responsible for taking pictures and transmitting the taken pictures to the AI ​​software ( Figure 3 The software digitizes the image information to determine the relative position of the elastic pick (actuator 14) and the component junction box in the X and Y directions, and then controls the movement of the X-axis linear module 1 and the Y-axis linear module 3 according to the obtained data, so that the elastic pick moves to the area above the junction box;

[0025] The second visual camera 13 (the detection angle is obliquely downward, and is aligned with the detection angle of the first visual camera 8 at the same position) takes pictures obliquely to collect Z-axis data, and determines the displacement of the elastic pick downward after digitization, and then controls the movement of the Z-axis linear module 4 according to the data, so that the elastic pick reaches the welding point of the junction box;

[0026] After positioning is completed, the Y-axis linear module 3 drives the fixed plate 2 5 to move, so that the elastic pick contacts the welding point; during testing, the X-axis linear module 1, the Y-axis linear module 3, and the Z-axis linear module 4 work together to make a compound motion, so that the end of the elastic pick moves out of an arc motion trajectory to achieve detection of the welding part. During the process, the motor torque of the Y-axis linear module 3 is controlled to control the detection action strength to avoid damage to the junction box;

[0027] When the torque reaches the set value, the mechanism returns to its original state, the first visual camera 8 and the second visual camera 13 take photos again, and the AI ​​software performs defect detection on the photos to determine whether there is a cold solder joint;

[0028] The principle of the AI ​​software is: first locate the junction box through two visual cameras, then the AI ​​control device moves to the position of the junction box, and then performs a picking test. During the picking process, the oblique second visual camera 13 takes a video, and AI analyzes the quality structure of the welding. When the number of inspections is equal to 3, poor welding will be manually repaired, and normal welding will proceed to the next process; when the number of inspections is less than three, the device as a whole will control the actuator 14 to move to the next junction box position for continued inspection.

[0029] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A photovoltaic module junction box lead-out wire and guide tool contact and actuation device, comprising an X-axis linear module (1), characterized in that: The X-axis linear module (1) is drivingly connected to a fixed plate 1 (2), the fixed plate 1 (2) is provided with a Y-axis linear module (3), the Y-axis linear module (3) is drivingly connected to a fixed plate 2 (5), a Z-axis linear module (4) is provided on the front side of the fixed plate 2 (5), the Z-axis linear module (4) is drivingly connected to a fixed plate 3 (9), the front side of the fixed plate 3 (9) is provided with a mounting rod 2 (10), the right side of the mounting rod 2 (10) is provided with a third fixed profile (12), and the front side of the third fixed profile (12) is provided with an actuator (14).

2. A photovoltaic module junction box lead-out wire and guide tool contact and actuation device according to claim 1, characterized in that: A mounting rod (6) is arranged on the other side of the front face of the second fixing plate (5), a first fixing profile (7) is arranged on the side face of the first fixing profile (6), and a first visual camera (8) is arranged on the first fixing profile (7).

3. A photovoltaic module junction box lead-out wire and guide tool contact and actuation device according to claim 2, characterized in that: A second fixed profile (11) is arranged on the left side of the second mounting rod (10), and a second visual camera (13) is arranged on the front side of the second fixed profile (11).

4. A photovoltaic module junction box lead-out wire and guide tool contact and actuation device according to claim 1, characterized in that: The actuator (14) is an elastic paddle.

5. A photovoltaic module junction box lead-out wire and guide tool contact and actuation device according to claim 3, characterized in that: The detection viewing angle of the first visual camera (8) is set vertically downward, and the detection viewing angle of the second visual camera (13) is set obliquely downward. The detection viewing angles of the first visual camera (8) and the second visual camera (13) are aligned with the same position.

6. A working method for a photovoltaic module junction box lead-out wire and guiding tool contact and actuation device based on claim 1, characterized in that: The specific method is as follows: when working, the first visual camera (8) is responsible for taking pictures with its detection angle of view vertically downward, and transmits the taken pictures to the AI ​​software, which digitizes the picture information to determine the relative position of the elastic pick actuator (14) and the component junction box in the X and Y directions, and then controls the movement of the X-axis linear module (1) and the Y-axis linear module (3) based on the obtained data, so that the elastic pick moves to the area above the junction box; The second visual camera (13) has a detection angle facing obliquely downward, and is aligned with the first visual camera (8) to take pictures obliquely at the same position, collects Z-axis data, and determines the displacement of the elastic pick downward after digitization, and then controls the movement of the Z-axis linear module (4) according to the data, so that the elastic pick reaches the welding point of the junction box; After positioning is completed, the Y-axis linear module (3) drives the second fixed plate (5) to move, so that the elastic pick contacts the welding point; during testing, the X-axis linear module (1), the Y-axis linear module (3), and the Z-axis linear module (4) cooperate to perform a compound motion, so that the end of the elastic pick moves out of an arc-shaped motion trajectory, thereby realizing the detection of the welding part. During the process, the motor torque of the Y-axis linear module (3) is controlled to control the detection action strength to avoid damage to the junction box; When the torque reaches the set value, the mechanism returns to its original position, the first visual camera (8) and the second visual camera (13) take photos for the second time, and the AI ​​software performs defect detection on the photos to determine whether there is a cold solder joint; The AI ​​software first locates the junction box through two visual cameras, and then the AI ​​controls the device to move to the position of the junction box, and then performs a picking test. During the picking process, the oblique second visual camera (13) takes a video, and the AI ​​analyzes the quality structure of the welding. When the number of inspections is equal to 3, poor welding is manually repaired, and normal welding proceeds to the next process; when the number of inspections is less than three, the device as a whole will control the actuator (14) to move to the next junction box position for continued inspection.