Photovoltaic panel direct current line visual detection device
By combining an infrared heating plate with a high-definition camera, the problem that photovoltaic panel inspection devices can only detect the surface has been solved, enabling comprehensive inspection of both the surface and interior of photovoltaic panels, thus improving the accuracy and stability of the inspection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG YIJIAN ELECTRIC POWER ENGINEERING CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-07-07
AI Technical Summary
Existing photovoltaic panel testing devices can only test the surface of photovoltaic panels and cannot test the interior, resulting in inaccurate testing results.
The system combines an infrared heating plate with a high-definition camera. The surface of the photovoltaic panel is heated by a pressing roller, and the heat distribution is detected. At the same time, the high-definition camera is used for internal detection, and a moving mechanism is used to stabilize the photovoltaic panel to prevent it from shifting.
It enables comprehensive inspection of the surface and interior of photovoltaic panels, avoiding the problem of inaccurate inspection structures and improving the accuracy and stability of the inspection.
Smart Images

Figure CN224471586U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of photovoltaic panel inspection technology, and in particular relates to a visual inspection device for DC lines of photovoltaic panels. Background Technology
[0002] According to the published patent CN220419195U, a photovoltaic panel inspection device is disclosed. The frame inspection mechanism includes four inspection components for inspecting the four sides of the product. Each inspection component includes a first linear module parallel to the product's side, a second linear module horizontally positioned on the output end of the first linear module and perpendicular to the product's side, a connecting frame fixedly positioned at the output end of the second linear module, and a first camera component and a second camera component respectively positioned at both ends of the connecting frame. The first camera component is used to inspect the inner side of the product, and the second camera component is used to inspect the outer shell of the product. The structural design and specific implementation of the frame inspection mechanism enable linear inspection of the inner and outer sides of the frame, ensuring effective inspection of the inner and outer sides of the frame, as well as the adhesive strip between the frame and the photovoltaic panel. However, it still has the following shortcomings:
[0003] After the above equipment was completed, it simply inspected the surface of the photovoltaic panel using a camera. However, since the camera can only inspect the surface of the photovoltaic panel, the inspection method is limited and cannot inspect the inside of the photovoltaic panel, resulting in inaccurate structural information at the inspection point. Utility Model Content
[0004] The purpose of this utility model is to provide a photovoltaic panel DC line visual inspection device. Through the detection mechanism and the moving mechanism, it solves the problems of inaccurate structure at the detection point caused by the fact that the camera can only inspect the surface of the photovoltaic panel, the detection method is limited, and it cannot detect the inside of the photovoltaic panel.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model is a visual inspection device for DC lines of photovoltaic panels, including a base, and a light-shielding box is fixedly connected to the top outer wall of the base;
[0007] The inner wall of the light-shielding box is provided with a detection mechanism, which includes a light-shielding curtain. The outer wall of the light-shielding curtain is rotatably connected to the outer wall of the light-shielding box. An infrared heating plate is fixedly connected to the top of the inner wall of the light-shielding box. A high-definition camera is fixedly connected to the inner wall of the light-shielding box. An operation panel is fixedly connected to the outer wall of the outer wall of the light-shielding box. Several positioning seats are fixedly connected to the top of the inner wall of the light-shielding box. A telescopic rod is rotatably connected to the inner wall of the positioning seat. A first positioning plate is rotatably connected to the outer wall of the telescopic rod away from the positioning seat. A compression roller is rotatably connected to the bottom outer wall of the first positioning plate. A spring is fixedly connected to the top outer wall of the first positioning plate. A second positioning plate is fixedly connected to the outer wall of the spring away from the first positioning plate.
[0008] Furthermore, a damper is fixedly connected to the top outer wall of the first positioning plate, the outer wall of the damper is fixedly connected to the inner wall of the light-shielding box, the outer wall of the damper is slidably connected to the inner wall of the second positioning plate, a plurality of first positioning rods are rotatably connected to the inner wall of the first positioning plate, a connecting seat is rotatably connected to the outer wall of the end of the first positioning rod away from the first positioning plate, the outer wall of the connecting seat is fixedly connected to the inner wall of the light-shielding box, a second positioning rod is rotatably connected to the inner wall of the first positioning rod, the outer wall of the second positioning rod is rotatably connected to the inner wall of the second positioning plate, and a moving mechanism is provided on the outer wall of the base.
[0009] Furthermore, the moving mechanism includes an electric telescopic rod, the outer wall of which is fixedly connected to the inner wall of the base, and a fixing block is fixedly connected to the outer wall of the electric telescopic rod.
[0010] Furthermore, a placement plate is fixedly connected to the top outer wall of the fixing block, a motor is fixedly connected to the inner wall of the fixing block, and a bidirectional threaded rod is fixedly connected to the output end of the motor through a coupling.
[0011] Furthermore, a sliding rod is fixedly connected to the inner wall of the fixed block, and a plurality of first connecting plates are slidably connected to the outer walls of the sliding rod and the bidirectional threaded rod, and a connecting rod is rotatably connected to the outer walls of the plurality of first connecting plates.
[0012] Furthermore, a positioning shaft is rotatably connected to the outer wall of the end of the connecting rod away from the first connecting plate, and a support rod is rotatably connected to the outer wall of the positioning shaft.
[0013] Furthermore, a pressure plate is rotatably connected to the outer wall of the end of the support rod away from the positioning axis, and a second connecting plate is fixedly connected to the outer wall of the pressure plate.
[0014] Furthermore, a limiting groove is formed on the inner wall of the support rod, and a limiting rod is slidably connected to the inner wall of the limiting groove. The outer wall of the limiting rod is fixedly connected to the inner wall of the fixing block.
[0015] This utility model has the following beneficial effects:
[0016] 1. This utility model incorporates an infrared heating plate and a high-definition camera. The pressure generated by the telescopic rod is used to compress the object using a compression roller. The rotation of the compression roller ensures the compressed portion is fully distributed across the object's surface. The infrared heating plate is then activated via the control panel to automatically heat the object. Simultaneously, the high-definition camera detects the heat distribution on the object's surface and transmits the data to the display screen on the outer control panel. This achieves the goal of heating the photovoltaic panel surface with the heating plate while simultaneously detecting the photovoltaic panel's surface temperature using the camera. This prevents problems such as inaccurate detection due to the camera's limited ability to inspect the photovoltaic panel's surface and its inability to detect the internal structure.
[0017] 2. This utility model incorporates a pressure plate. When the motor is started, it drives the bidirectional threaded rod to rotate, simultaneously pushing the first connecting plate to move along the outer side of the bidirectional threaded rod. The movement of the first connecting plate pushes the connecting rod, which in turn moves the positioning shaft. The positioning shaft then moves the support rod, while a limiting rod slides along a limiting groove inside the support rod. Since the limiting rod is fixed inside the fixing block, it pushes the support rod to rotate around the positioning shaft. This causes the support rod to move the pressure plate, simultaneously moving the second connecting plate, which in turn moves the pressure plate on the other side. This achieves the goal of simultaneously rotating the bidirectional threaded rod driven by the motor and moving and rotating two pressure plates, thus pressing the object onto the placement plate. This prevents the photovoltaic panel from shifting due to unstable positioning during movement, which could lead to missed detections and inaccurate results.
[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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.
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a cross-sectional view of the detection structure of this utility model;
[0022] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;
[0023] Figure 4 This is a cross-sectional view of the overall structure of this utility model;
[0024] Figure 5 This utility model Figure 4 Enlarged view at point B in the middle;
[0025] Figure 6 This is a cross-sectional view of the movable structure of this utility model.
[0026] The attached diagram lists the components represented by each number as follows:
[0027] 1. Base; 101. Light-shielding box; 2. Detection mechanism; 201. Light-shielding curtain; 202. Infrared heating plate; 203. High-definition camera; 204. Operation panel; 205. Positioning seat; 206. Telescopic rod; 207. First positioning plate; 208. Extrusion roller; 209. First positioning rod; 210. Connecting seat; 211. Second positioning plate; 212. Damper; 213. Spring; 214. Second positioning rod; 3. Moving mechanism; 301. Electric telescopic rod; 302. Fixing block; 303. Placement plate; 304. Motor; 305. Bidirectional threaded rod; 306. Slide rod; 307. First connecting plate; 308. Connecting rod; 309. Positioning shaft; 310. Support rod; 311. Pressure plate; 312. Second connecting plate; 313. Limiting groove; 314. Limiting rod. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0029] Please see Figure 1-6 As shown, this utility model is a photovoltaic panel DC line visual inspection device, including a base 1, and a light-shielding box 101 is fixedly connected to the top outer wall of the base 1 to prevent light interference.
[0030] The inner wall of the light-shielding box 101 is equipped with a detection mechanism 2, which includes a light-shielding curtain 201. The light-shielding curtain 201 prevents objects from entering the interior of the light-shielding box 101 by leaving a gap. The outer wall of the light-shielding curtain 201 is rotatably connected to the outer wall of the light-shielding box 101. An infrared heating plate 202, model SLK1, is fixedly connected to the top of the inner wall of the light-shielding box 101. This ceramic glass panel infrared heating plate features a smooth, wear-resistant, and chemically corrosion-resistant surface, is easy to clean, has high thermal conductivity and good uniformity, can withstand drastic temperature changes of up to 700℃, and has 24... The system features a temperature setting via a rotary knob and a large LCD screen displaying both the set and actual temperatures. It also includes a timer function, with the set and actual operating times also displayed on the large LCD screen. A high-definition camera 203, model F200 (a Desway photovoltaic handheld thermal imager), is fixedly connected to the inner wall of the shading box 101. Employing a high-sensitivity infrared detector, it can accurately capture surface temperature changes of the modules from tens of meters away, converting thermal radiation into clear thermal images. This effectively eliminates ambient light interference, and its wide operating temperature range allows for stable operation in extreme weather conditions, making it suitable for various types of photovoltaic modules.It can quickly locate faults such as microcracks in solar cells, failure of bypass diodes, and poor contact in junction boxes by measuring temperature differences. The photovoltaic panel is heated by an infrared heating plate 202, and a high-definition camera 203 is used to inspect areas of abnormal heat on the photovoltaic panel. An operation panel 204 is fixedly connected to the outer wall of the shading box 101. The display screen on the operation panel 204 shows the heat distribution data on the surface of the photovoltaic panel recorded by the high-definition camera 203. Several positioning seats 205 are fixedly connected to the top of the inner wall of the shading box 101. Telescopic rods 206 are rotatably connected to the inner walls of the positioning seats 205. A first positioning plate 207 is rotatably connected to the outer wall of the end away from the positioning seat 205. The extension of the telescopic rod 206 is controlled by the operation panel 204 to push the first positioning plate 207 downward. A pressing roller 208 is rotatably connected to the bottom outer wall of the first positioning plate 207. The pressing roller 208 is pushed by the first positioning plate 207 to make it contact the photovoltaic panel, and the pressure generated by the telescopic rod 206 presses the bottom photovoltaic panel. A spring 213 is fixedly connected to the top outer wall of the first positioning plate 207. A second positioning plate 211 is fixedly connected to the outer wall of the end of the spring 213 away from the first positioning plate 207. After the extrusion roller 208 contacts the photovoltaic panel, it compresses the spring 213, increasing the pressure of the extrusion roller 208 using the elasticity of the spring 213. A damper 212 is fixedly connected to the top outer wall of the first positioning plate 207, and the outer wall of the damper 212 is fixedly connected to the inner wall of the light-shielding box 101. The damper 212 is also compressed when the extrusion roller 208 moves, relieving the pressure of the extrusion roller 208 on the connecting part. The outer wall of the damper 212 is slidably connected to the inner wall of the second positioning plate 211. Several first positioning rods 209 are rotatably connected to the inner wall of the first positioning plate 207. The outer wall of the end of rod 209 away from the first positioning plate 207 is rotatably connected to a connecting seat 210. The movement of the first positioning plate 207 pulls the first positioning rod 209 to rotate around the inner wall of the connecting seat 210. The outer wall of the connecting seat 210 is fixedly connected to the inner wall of the light-shielding box 101. The inner wall of the first positioning rod 209 is rotatably connected to a second positioning rod 214. The outer wall of the second positioning rod 214 is rotatably connected to the inner wall of the second positioning plate 211. The rotation of the first positioning rod 209 pushes the second positioning rod 214 to push the second positioning plate 211 downward. The outer wall of the base 1 is provided with a moving mechanism 3.
[0031] The moving mechanism 3 includes an electric telescopic rod 301. The electric telescopic rod 301 is activated. Its outer wall is fixedly connected to the inner wall of the base 1. A fixing block 302 is fixedly connected to the outer wall of the electric telescopic rod 301. A placement plate 303 is fixedly connected to the top outer wall of the fixing block 302. The fixing block 302 moves by being pulled by the shortening of the electric telescopic rod 301. A motor 304 is fixedly connected to the inner wall of the fixing block 302. The motor 304 is activated. A bidirectional threaded rod 305 is fixedly connected to the output end of the motor 304 via a coupling. A sliding rod 306 is fixedly connected to the inner wall of the fixing block 302. Several first connecting plates 307 are slidably connected to the outer walls of both the sliding rod 306 and the bidirectional threaded rod 305. The motor 304 drives the bidirectional threaded rod 305 to rotate while simultaneously pushing the first connecting plates 307 to move. Connecting rods 308 are rotatably connected to the outer walls of the several first connecting plates 307.
[0032] A positioning shaft 309 is rotatably connected to the outer wall of the connecting rod 308 away from the first connecting plate 307. A support rod 310 is rotatably connected to the outer wall of the positioning shaft 309. A pressure plate 311 is rotatably connected to the outer wall of the support rod 310 away from the positioning shaft 309. The movement of the first connecting plate 307 pushes the connecting rod 308 to move, thereby driving the positioning shaft 309, which in turn drives the support rod 310 to move. A second connecting plate 312 is fixedly connected to the outer wall of the pressure plate 311. The movement of the support rod 310 pushes the pressure plate 311 to drive the second connecting plate 312. While 12 is moving, the second connecting plate 312 moves the pressure plate 311 at the other end, so that the pressure plate 311 pulls the first connecting plate 307 on the outside of the slide rod 306 to move. The inner wall of the support rod 310 has a limiting groove 313. The inner wall of the limiting groove 313 is slidably connected to the limiting rod 314. The outer wall of the limiting rod 314 is fixedly connected to the inner wall of the fixing block 302. During the movement of the support rod 310, the limiting rod 314 will be driven to move along the inside of the limiting groove 313, so that the limiting rod 314 will push the support rod 310 to rotate.
[0033] One specific application of this embodiment is:
[0034] When the operator needs to use the equipment, the object is placed on the surface of the placement plate 303. The motor 304 is started, causing the bidirectional threaded rod 305 to rotate while simultaneously pushing the first connecting plate 307 to move along the outer side of the bidirectional threaded rod 305. The movement of the first connecting plate 307 pushes the connecting rod 308, which in turn moves the positioning shaft 309. The positioning shaft 309 then moves the support rod 310, while the limiting rod 314 slides along the limiting groove 313 inside the support rod 310. Since the limiting rod 314 is fixed inside the fixing block 302, it pushes the support rod 310 to rotate around... The positioning shaft 309 rotates, causing the support rod 310 to push the pressure plate 311 to move, while simultaneously moving the second connecting plate 312. The second connecting plate 312 then moves the pressure plate 311 on the other side, pulling the first connecting plate 307 on the other side to slide along the outside of the slide rod 306. The remaining steps are the same as after the bidirectional threaded rod 305 pushes the first connecting plate 307 to move. The slide rod 306 stabilizes the movement of the pressure plate 311 and the second connecting plate 312, pressing the object onto the surface of the placement plate 303. Then, the shortening of the electric telescopic rod 301 pulls the fixing block 302, causing the object to move. Before the object moves into the light-shielding box 101, the telescopic rod 206 can be automatically extended by activating the operation panel 204. This pushes the first positioning plate 207 downward while the telescopic rod 206 rotates around the positioning seat 205. During the movement of the first positioning plate 207, it pushes the compression roller 208 to contact the surface of the object. The pressure generated by the telescopic rod 206 compresses the object using the compression roller 208. The rotation of the compression roller 208 ensures that the compressed portion is fully distributed on the surface of the object. Subsequently, the infrared heating plate 202 is activated by activating the operation panel 204 to automatically heat the object. At the same time, the high-definition camera 203... The heat distribution on the surface of the object is detected and the data is transmitted to the display screen on the surface of the operation panel 204 on the outside. During the movement of the first positioning plate 207, the first positioning rod 209 is driven to rotate around the first positioning plate 207, while pushing the connecting seat 210 to slide on the inner wall of the light shield box 101. The rotation of the first positioning rod 209 pushes the second positioning rod 214 to push the second positioning plate 211 to move, while squeezing the spring 213. The elasticity of the spring 213 increases the pressure of the squeezing roller 208. At the same time, the damper 212 reduces the pressure of the squeezing roller 208 on the first positioning rod 209 and the second positioning rod 214.
[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A photovoltaic panel DC line visual inspection device, comprising a base (1), characterized in that: A light-shielding box (101) is fixedly connected to the top outer wall of the base (1). The inner wall of the light-shielding box (101) is provided with a detection mechanism (2), which includes a light-shielding curtain (201). The outer wall of the light-shielding curtain (201) is rotatably connected to the outer wall of the light-shielding box (101). An infrared heating plate (202) is fixedly connected to the top of the inner wall of the light-shielding box (101). A high-definition camera (203) is fixedly connected to the inner wall of the light-shielding box (101). An operation panel (204) is fixedly connected to the outer wall of the light-shielding box (101). The top of the inner wall of the light-shielding box (101) is fixedly connected to the operation panel (204). A plurality of positioning seats (205) are fixedly connected. A telescopic rod (206) is rotatably connected to the inner wall of the positioning seat (205). A first positioning plate (207) is rotatably connected to the outer wall of the telescopic rod (206) away from the positioning seat (205). A pressing roller (208) is rotatably connected to the bottom outer wall of the first positioning plate (207). A spring (213) is fixedly connected to the top outer wall of the first positioning plate (207). A second positioning plate (211) is fixedly connected to the outer wall of the spring (213) away from the first positioning plate (207).
2. The photovoltaic panel DC line visual inspection device according to claim 1, characterized in that, A damper (212) is fixedly connected to the top outer wall of the first positioning plate (207). The outer wall of the damper (212) is fixedly connected to the inner wall of the light-shielding box (101). The outer wall of the damper (212) is slidably connected to the inner wall of the second positioning plate (211). A plurality of first positioning rods (209) are rotatably connected to the inner wall of the first positioning plate (207). A connecting seat (210) is rotatably connected to the outer wall of the end of the first positioning rod (209) away from the first positioning plate (207). The outer wall of the connecting seat (210) is fixedly connected to the inner wall of the light-shielding box (101). A second positioning rod (214) is rotatably connected to the inner wall of the first positioning rod (209). The outer wall of the second positioning rod (214) is rotatably connected to the inner wall of the second positioning plate (211). A moving mechanism (3) is provided on the outer wall of the base (1).
3. The photovoltaic panel DC line visual inspection device according to claim 2, characterized in that, The moving mechanism (3) includes an electric telescopic rod (301), the outer wall of which is fixedly connected to the inner wall of the base (1), and a fixing block (302) is fixedly connected to the outer wall of the electric telescopic rod (301).
4. The photovoltaic panel DC line visual inspection device according to claim 3, characterized in that, The top outer wall of the fixed block (302) is fixedly connected to a placement plate (303), and the inner wall of the fixed block (302) is fixedly connected to a motor (304). The output end of the motor (304) is fixedly connected to a bidirectional threaded rod (305) via a coupling.
5. A photovoltaic panel DC line visual inspection device according to claim 4, characterized in that, The inner wall of the fixed block (302) is fixedly connected to a slide rod (306), and the outer walls of the slide rod (306) and the bidirectional threaded rod (305) are slidably connected to a plurality of first connecting plates (307), and the outer walls of the plurality of first connecting plates (307) are rotatably connected to connecting rods (308).
6. The photovoltaic panel DC line visual inspection device according to claim 5, characterized in that, The outer wall of the end of the connecting rod (308) away from the first connecting plate (307) is rotatably connected to a positioning shaft (309), and the outer wall of the positioning shaft (309) is rotatably connected to a support rod (310).
7. A photovoltaic panel DC line visual inspection device according to claim 6, characterized in that, The outer wall of the support rod (310) away from the positioning shaft (309) is rotatably connected to a pressure plate (311), and the outer wall of the pressure plate (311) is fixedly connected to a second connecting plate (312).
8. A photovoltaic panel DC line visual inspection device according to claim 7, characterized in that, The inner wall of the support rod (310) has a limiting groove (313), the inner wall of the limiting groove (313) is slidably connected to a limiting rod (314), and the outer wall of the limiting rod (314) is fixedly connected to the inner wall of the fixing block (302).