Photovoltaic power station detection and maintenance device

Abstract

The present invention relates to the technical field of photovoltaic power station maintenance, and specifically to a photovoltaic power station detection and maintenance device, comprising a photovoltaic panel, a truss, a positioning mechanism, a detection mechanism and a shielding mechanism; the photovoltaic panel is installed with a truss around it, the positioning mechanism is structurally engaged with the truss, the truss provides a track for the positioning mechanism to move, and the structural size of the truss is the same as two sides of the photovoltaic panel; the detection mechanism is slidably installed on the upper end of the positioning mechanism; the shielding mechanism is installed on the side of the positioning mechanism, and the shielding mechanism performs light shielding treatment on the faulty photovoltaic panel through the heat information provided by the detection mechanism; the present invention designs a shielding mechanism that slides on the surface of the photovoltaic panel, temporarily treats the overheating caused by local faults on the surface of the photovoltaic panel through the positioning mechanism, covers the light-shielding structure, stops the faulty part from receiving light, thereby suppressing the heat generation during the installation process, and provides the specific position of the maintenance personnel at the same time, greatly reducing the difficulty of maintenance.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic power station maintenance, and in particular to a photovoltaic power station detection and maintenance device. Background Art

[0002] Photovoltaic power generation is a renewable energy power generation method that uses the photovoltaic effect to convert solar energy into electrical energy. A photovoltaic field is usually composed of a large number of photovoltaic panels. These photovoltaic panels are exposed to the natural environment for a long time and are easily damaged by various factors. Therefore, inspection and maintenance technology is particularly important.

[0003] The inspection and maintenance process after damage is generally more complicated. First, the damaged photovoltaic panel needs to be inspected through visual inspection or non-destructive testing technology to confirm the damage. Then, the fault is located according to the cause of the damage. Finally, the damaged photovoltaic panel is repaired or replaced to ensure its normal power generation function.

[0004] When there is poor contact or circuit problems between photovoltaic panel components, it will cause poor current flow or increased local resistance, which will generate excessive heat and make the temperature of the faulty part higher than the surrounding area; and when the photovoltaic panel is covered by dust, pollutants or shadows, it will also reduce its efficiency in receiving light energy, causing the surface temperature of the photovoltaic panel to be too high. This phenomenon is usually caused by local faults or damage on the surface of the photovoltaic panel, resulting in the photovoltaic elements in the local area not being able to work normally, while other photovoltaic elements continue to absorb light energy and generate electricity. Failure to promptly inspect or replace these faulty areas will result in the photovoltaic elements that cannot generate electricity forming high-heat areas, causing the surface temperature of the photovoltaic panel to rise excessively, thereby affecting the power generation efficiency of the entire photovoltaic panel.

[0005] Due to the large number of photovoltaic panels in the photovoltaic field and their large area, the inspection and maintenance work is difficult. During the troubleshooting process, a large area of ​​photovoltaic panels needs to be fully inspected and faults located. During the inspection process, staff are required to carry multiple inspection equipment on the photovoltaic panels to carry out inspection and maintenance of each row, which takes a long time and cost.

[0006] In order to solve these problems and thus improve the efficiency of photovoltaic panel maintenance and repair, the present invention provides a photovoltaic power station detection and maintenance device to solve the above problems. Summary of the invention

[0007] The technical problem to be solved by the present invention is: due to circuit problems caused by the environment in photovoltaic panel components, the current may be blocked or covered by dust, causing the temperature of the faulty part to be higher than the surrounding area, and the photovoltaic elements in the local area cannot work normally, thereby affecting the power generation efficiency of the entire photovoltaic panel. For this type of inspection and maintenance, the staff is required to carry multiple inspection equipment on the photovoltaic panel during the inspection process, so as to carry out inspection and maintenance of each row, which requires considerable time and manpower.

[0008] In order to solve the technical problem, the technical solution adopted by the present invention is: to provide a photovoltaic power station detection and maintenance device, including a photovoltaic panel, a truss, a positioning mechanism, a detection mechanism and a shielding mechanism; the photovoltaic panel is installed with a truss around it, the positioning mechanism is structurally engaged with the truss, the truss provides a track for the positioning mechanism to move, and the structural size of the truss is the same as two sides of the photovoltaic panel, and is arranged on the side as an external frame of the photovoltaic panel; the detection mechanism is slidably installed on the upper end of the positioning mechanism, and the detection mechanism is positioned through the XY axial movement provided by the positioning mechanism, so that the detection mechanism detects the heat on the surface of the photovoltaic panel, and then the detection mechanism calculates the faulty photovoltaic panel based on the temperature of the non-faulty photovoltaic panel; the shielding mechanism is installed on the side of the positioning mechanism, and the shielding mechanism performs shading treatment on the faulty photovoltaic panel through the heat information provided by the detection mechanism.

[0009] The truss includes a fixed frame and a sliding frame; the fixed frame is installed on the side of the photovoltaic panel, and the fixed frame structure is rectangular. When the photovoltaic panel rotates around the sun, the photovoltaic panel slides through the fixed frame; the sliding frame is slidably connected to the upper end of the fixed frame, and the sliding frame is horizontally displaced relative to the photovoltaic panel.

[0010] Taking into account the changes in the use of photovoltaic panels, the equipment designed this time is mainly aimed at large horizontal structural panels in the photovoltaic field, that is, the width of a single photovoltaic panel, but the length of multiple photovoltaic panels. The width of the sliding frame designed for this type of photovoltaic panel is in line with the photovoltaic panel, but the excess length is intended to allow the photovoltaic panel to slide on the sliding frame due to gravity during rotation, thereby shielding the area at the lower end of the photovoltaic panel that is not accessible to the shading strip.

[0011] The fixing frame includes a sliding edge and a fixed edge; the sliding edge is shorter than the fixed edge, the side wall of the sliding edge is slidably connected to the shorter side wall of the photovoltaic panel, and the length of the sliding edge exceeds the length of the sliding connection edge of the photovoltaic panel by 10-15cm, and the excess length is designed to be 10-15cm. The length of this excess part is the same as the length of the positioning mechanism in the same direction, that is, when the shielding mechanism cannot move in the Y direction due to the obstruction between the moving wheel and the detection mechanism, because when the moving wheel is in contact with the fixed edge, there are still some areas of the shielding mechanism and the frame of the photovoltaic panel that cannot be covered, in order to In order to prevent the failure of both ends of the photovoltaic panel, the shielding mechanism cannot effectively provide temporary shading treatment, causing the photovoltaic panel to continue to heat up. In order to reduce this kind of situation, an excess length design of 10-15cm is adopted, and the length of the fixed side is the same as the length of the longer side of the photovoltaic panel, so that when the photovoltaic panel rotates with the sunlight, it can slide on the sliding edge according to gravity, thereby creating a gap between the photovoltaic panel and the fixed edge. When the positioning mechanism moves to contact with the fixed frame, the shielding mechanism can fit exactly on the edge of the photovoltaic panel to achieve full coverage of the outer surface of the photovoltaic panel.

[0012] The position where the sliding edge is slidably connected to the photovoltaic panel is set as a U-shaped groove structure that fits the photovoltaic panel. Since the upper surface of the photovoltaic panel needs to be continuously exposed to direct sunlight, the maintenance and inspection mechanism is designed to slide on the upper end of the outer frame of the photovoltaic panel. In order to prevent the positioning mechanism from blocking the photovoltaic panel during the movement of the truss, thereby reducing the efficiency of the photovoltaic panel, the truss is arranged on the outer frame. Considering that the setting of the outer frame of the photovoltaic panel is likely to cause the edge position to be unable to be covered, XY-axis sliding positioning is set, and a U-shaped groove structure is provided, so that the photovoltaic panel is clamped in the U-shaped groove, and the maximum static friction force of the material in the U-shaped groove is half of the gravity of the photovoltaic panel, thereby ensuring that the photovoltaic panel will not slide too fast due to excessive angle when rotating to adjust the incident angle of sunlight, causing the photovoltaic panel to be damaged due to impact.

[0013] like Figure 6 As shown, the sliding frame includes a frame frame, a C-shaped guardrail and a roller; the frame frame is in the shape of a Japanese character, and the two ends of the frame frame are rotatably connected to the rollers. The frame frame is provided with two, and the frame frame is parallelly clamped at the upper end of the fixed edge through the rollers, and the two frame frames are movably connected through a positioning mechanism; the rolling wheel is a double-layer structure, and one layer of the rolling wheel is provided with concave and convex teeth.

[0014] The longer side of the frame is in close contact with the upper surface of the photovoltaic panel, but maintains a partial distance. In this state, the frame is set to be perpendicular to the photovoltaic panel. In order to prevent the positioning mechanism from falling off, a C-shaped guardrail is provided. The open side of the C-shaped guardrail is opposite to the positioning mechanism, and the C-shaped guardrail is fixedly welded to the frame. Since the two frame frames are dispersedly arranged, but due to the fixation of the positioning mechanism, the two frame frames can be fixed by clamping the moving wheels on both sides, and then the roller provides the condition for Y-axis movement for the positioning mechanism.

[0015] A more stable method provides another optional solution compared to the dispersed frame. A steel bar is fixed and welded on both sides of the frame to integrate the frame. This method is more stable than the above-mentioned positioning mechanism. On the other hand, it can ensure that when the positioning mechanism accidentally falls off, the frame can still maintain the structure of the bracket. The above-mentioned dispersed frame structure is more ingenious and uses fewer structures. These two structures can be selected according to specific circumstances.

[0016] The midpoint of the double-layer structure of the roller is an inverted V-shaped groove, and the sliding connection between the fixed edge and the roller is set to a V-shaped structure that matches the inverted V-shaped groove; inverted trapezoidal grooves are set at both ends of the fixed edge, and the depth of the inverted trapezoidal groove is twice the height of the concave and convex teeth.

[0017] The connection between the roller and the truss adopts a V-shaped clamping connection, and a fixed edge is set to match the roller. The fixed edge is provided with a V-shaped structure, which can fix the roller on the fixed edge and provide a stable sliding track. Since the structure of the present invention is used on photovoltaic panels, but due to the size of the photovoltaic field, after reaching a certain length, there must be a gap between adjacent photovoltaic panels. In order to ensure that the equipment can still continue to carry out maintenance and inspection work, the roller continues to rotate. Within the range allowed by the frame length, inverted trapezoidal grooves are provided at both ends of the fixed edge. The inverted trapezoidal groove structure is large The minimum size can accommodate 1.5 concave-convex teeth, wherein the concave-convex teeth are designed on the outer edge of the roller, and since the roller is a double-layer structure, the concave-convex teeth are designed to have only one performance that can meet the performance requirements of the structure. When the frame moves on the roller, the frame is driven to move between adjacent photovoltaic panels. Due to the presence of the concave-convex teeth, the longer teeth of the concave-convex teeth are inserted into the inverted trapezoidal groove, and the depth of the inverted trapezoidal groove is set to twice the height of the concave-convex teeth, which can ensure that the concave-convex teeth are inserted into the inverted trapezoidal groove, and the shorter groove can be stuck at the edge, thereby achieving the span between adjacent photovoltaic panels.

[0018] The positioning mechanism includes a fixed plate, a suspension strut, a cross arm and a moving wheel; the fixed plate is a rectangular structure, the fixed plate is fixed between the Japanese-character plates, and both ends are at a certain distance from the Japanese-character plates, and the distance is equal to the width of the moving wheel, the suspension strut is fixedly connected to the upper end of the fixed plate, four suspension struts are provided, and the suspension struts are arranged in a rectangular shape, so that the overall structure is a car; the two ends of the cross arm are respectively fixedly connected to the two suspension struts; the moving wheel is rotatably connected to the upper end of the cross arm through a connecting shaft, and a motor is fixedly connected to the middle of the connecting shaft, so that one end provides power and the other row of moving wheels moves forward passively, thereby saving energy; the moving wheel structure is the same as the roller structure, the frame frame is clamped with the moving wheel, and the clamping point between the frame frame and the moving wheel is set as a V-shaped protrusion that fits the moving wheel.

[0019] The detection mechanism is fixedly connected to the upper end of the fixed plate, and a heat sensor is arranged inside the detection mechanism. The lower end of the detection mechanism is fixedly connected to the telescopic rod, and the end of the telescopic rod is fixedly connected to the universal wheel. The universal wheel slides on the outer surface of the photovoltaic panel under the drive of the positioning mechanism.

[0020] Since the detection mechanism is moved along with the positioning mechanism during its movement, the heat sensor in the detection mechanism scans the surface of the photovoltaic panel. The photovoltaic panel converts sunlight into electrical energy through the photovoltaic effect under sunlight, but in this conversion process, some energy is inevitably lost, part of which will be dissipated in the form of heat. Under this condition, it is conventional heating, which can be analyzed based on the heat sensor in the detection mechanism. However, when there is poor contact or circuit problem between photovoltaic panel components, it will cause poor current flow or increased local resistance, thereby generating excessive heat, causing the temperature of the faulty part to rise compared to the surrounding area. When the photovoltaic panel is covered by dust, pollutants or shadows, it will also reduce its efficiency in receiving light energy, causing heating. At this time, the detection mechanism can detect the surface of the photovoltaic panel and cooperate with the shielding mechanism to minimize the problem.

[0021] The shielding mechanism includes a support frame, a rotating roller, a shading belt, a traction roller, a crossbeam and cutting teeth; the support frame is rotatably connected to the side of the fixed plate, the lower end of the support frame is rotatably connected to the rotating roller, the rotating roller rotates synchronously with the shading belt, the shading belt extends a shading strip through the traction roller to the crossbeam, and the lower end of the crossbeam is fixedly connected to the cutting teeth.

[0022] A telescopic rod is provided at the lower end of the detection mechanism. When the equipment does not detect a fault, the telescopic rod is in a relatively long state, so the universal wheel is in contact with the photovoltaic panel at this time, so that the shading strip at the cutting teeth of the shielding mechanism does not contact the surface of the photovoltaic panel. When the heating position of the fault is detected, the telescopic rod is extended to make the shading strip contact with the surface of the photovoltaic panel, and the shading strip is fitted under the movement of the positioning mechanism until the heating area is completely covered, and then the maintenance personnel are notified to replace and repair it.

[0023] Similarly, since the telescopic rod is extended and located on the side close to the edge, when it is extended, the detection mechanism is displaced by three wheels, namely, the universal wheel and the movable wheel support, so that the shading belt fits the photovoltaic panel. After the fault area is fitted, the telescopic rod contracts, so that the two lifted wheels are clamped on the fixed edge again; and since the cross beam and the side of the fixed plate are fixedly connected with an elastic rod, the elastic rod provides support for the shielding mechanism during the extension and retraction of the telescopic rod; the elastic rod provides stable support for the equipment during the lifting process.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. The present invention designs a shielding mechanism that slides on the surface of the photovoltaic panel, and temporarily deals with the overheating caused by local faults on the surface of the photovoltaic panel through a positioning mechanism, and covers the shading structure to stop the faulty part from receiving light, thereby suppressing the heat generated by the fault during the installation process, thereby extending the inspection time, providing maintenance personnel with sufficient space, and accurately locating the faulty area, thereby improving the efficiency of maintenance and greatly reducing the difficulty of maintenance; on the other hand, the faulty area can be protected in time, reducing heat transfer, preventing the edge photovoltaic panels from being damaged, and improving the practicability of the equipment.

[0026] 2. The present invention connects two different photovoltaic panels as a whole through special slots designed at both ends of the truss, so that the positioning mechanism can move between adjacent photovoltaic panels, thereby improving the applicability of the equipment and improving the stability, so that the equipment can perform cross-row detection between two adjacent rows, reducing the workload of staff and improving work efficiency.

[0027] 3. The present invention designs a truss that changes with the light angle and places the photovoltaic panel inside the truss, so that the truss changes around the light and provides a fixed shielding mechanism to shade the dead corners, so that the equipment has better adaptability and can be adaptively adjusted according to the current different angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation of the present invention or the technical solution in the prior art, the following briefly introduces the drawings required for use in the specific implementation or the description of the prior art.

[0029] Figure 1 The overall installation diagram of the preferred embodiment provided by the present invention;

[0030] Figure 2 This is a schematic diagram of movement between adjacent photovoltaic panels in a preferred embodiment of the present invention;

[0031] Figure 3 A schematic diagram of a shielding mechanism according to a preferred embodiment of the present invention;

[0032] Figure 4 A schematic diagram of a positioning mechanism according to a preferred embodiment of the present invention;

[0033] Figure 5 It is a schematic diagram of a detection mechanism of a preferred embodiment of the present invention;

[0034] Figure 6 A schematic diagram of a sliding frame according to a preferred embodiment of the present invention;

[0035] Figure 7 It is a schematic diagram of a truss structure of a preferred embodiment of the present invention;

[0036] Figure 8 It is a schematic diagram of the truss details of a preferred embodiment of the present invention.

[0037] In the figure: 1. photovoltaic panel; 2. truss; 21. fixed frame; 211. sliding edge; 212. fixed edge; 213. inverted trapezoidal groove; 22. sliding frame; 223. roller; 224. concave and convex teeth; 225. inverted V-shaped groove; 226. V-shaped structure; 3. positioning mechanism; 31. fixed plate; 32. hanging support; 33. cross arm; 34. moving wheel; 35. connecting shaft; 36. motor; 4. detection mechanism; 41. telescopic rod; 42. universal wheel; 5. shielding mechanism; 51. support frame; 52. rotating roller; 53. shading belt; 54. traction roller; 55. cross beam; 56. cutting teeth; 57. elastic rod. DETAILED DESCRIPTION

[0038] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention and does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0039] like Figure 1As shown, a photovoltaic power station detection and maintenance device includes a photovoltaic panel 1, a truss 2, a positioning mechanism 3, a detection mechanism 4 and a shielding mechanism 5; the photovoltaic panel 1 is installed with a truss 2 around it, the positioning mechanism 3 is structurally engaged with the truss 2, the truss 2 provides a track for the positioning mechanism 3 to move, and the structure size of the truss 2 is the same as two sides of the photovoltaic panel 1, and is arranged on the side as an external frame of the photovoltaic panel 1; the detection mechanism 4 is slidably installed on the upper end of the positioning mechanism 3, and the detection mechanism 4 is positioned by the XY axial movement provided by the positioning mechanism 3, so that the detection mechanism 4 detects the heat on the surface of the photovoltaic panel 1, and then the detection mechanism 4 calculates the faulty photovoltaic panel 1 based on the temperature of the non-faulty photovoltaic panel 1; the shielding mechanism 5 is installed on the side of the positioning mechanism 3, and the shielding mechanism 5 performs light shielding on the faulty photovoltaic panel 1 through the heat information provided by the detection mechanism 4.

[0040] The device provides a stable support and moving track for the detection mechanism 4 by installing the truss 2 and the positioning mechanism 3 around the photovoltaic panel 1, so that the detection mechanism 4 can accurately move and position on the surface of the photovoltaic panel 1. The truss 2 is set on the side as the external frame of the photovoltaic panel 1, which not only strengthens the structural stability of the photovoltaic panel 1, but also provides convenience for subsequent detection and maintenance; the detection mechanism 4 is slidably installed on the upper end of the positioning mechanism 3, and the surface of the photovoltaic panel 1 is positioned through the XY axial movement provided by the positioning mechanism 3; this enables the detection mechanism 4 to accurately detect the heat on the surface of the photovoltaic panel 1, so that the faulty photovoltaic panel 1 can be found in time; by combining the temperature information of the non-faulty photovoltaic panel 1, the detection mechanism 4 can also infer the photovoltaic panel 1 that may have a fault, thereby improving the accuracy and efficiency of fault detection; at the same time, a shielding mechanism 5 is also set, which is installed on the side of the positioning mechanism 3, and is used to perform light shielding treatment on the faulty photovoltaic panel 1 according to the heat information provided by the detection mechanism 4. This treatment measure can effectively reduce the possibility of the faulty photovoltaic panel 1 continuing to work under light conditions, avoid the spread of the fault and affect other photovoltaic panels 1 that are normally operating, and ensure the overall power generation efficiency of the photovoltaic power station.

[0041] The truss 2 includes a fixed frame 21 and a sliding frame 22; the fixed frame 21 is installed on the side of the photovoltaic panel 1, and the fixed frame 21 has a rectangular structure. When the photovoltaic panel 1 rotates around the sun, the photovoltaic panel 1 slides through the fixed frame 21; the sliding frame 22 is slidably connected to the upper end of the fixed frame 21, and the sliding frame 22 is horizontally displaced relative to the photovoltaic panel 1.

[0042] Taking into account the changes during the use of the photovoltaic panel 1, and mainly targeting the large horizontal structural panels of the photovoltaic panels 1 in the photovoltaic field, that is, the width of a single photovoltaic panel 1, but the length of multiple photovoltaic panels 1 spliced ​​together, the width of the sliding frame 22 is designed to fit the photovoltaic panel 1, but the length exceeds the part. The purpose is that the photovoltaic panel 1 can slide on the sliding frame 22 due to gravity during the rotation, thereby shielding the area where the lower end of the photovoltaic panel 1 is not close to the shading strip.

[0043] The fixing frame 21 includes a sliding edge 211 and a fixed edge 212; the sliding edge 211 is shorter than the fixed edge 212, the sliding edge 211 is slidably connected to the shorter side of the photovoltaic panel 1, and the length of the sliding edge 211 exceeds the length of the sliding connection edge of the photovoltaic panel 1 by 10-15 cm, and is designed to be an excess length of 10-15 cm. The length of this excess portion is the same as the length of the positioning mechanism 3 in the same direction, that is, when the shielding mechanism 5 cannot move in the Y direction due to the presence of a block between the moving wheel 34 and the detection mechanism 4, because when the moving wheel 34 is in contact with the fixed edge 212, there are still some areas of the frame of the shielding mechanism 5 and the photovoltaic panel 1 that cannot be To cover, in order to prevent the failure of both ends of the photovoltaic panel 1, the shielding mechanism 5 cannot effectively provide temporary shading treatment, causing the photovoltaic panel 1 to continue to heat up. In order to reduce this kind of situation, an excess length design of 10-15cm is adopted, and the length of the fixed edge 212 is the same as the length of the longer side of the photovoltaic panel 1, so that when the photovoltaic panel 1 rotates with the sunlight, it can slide on the sliding edge 211 according to gravity, thereby creating a gap between the photovoltaic panel 1 and the fixed edge 212. When the positioning mechanism 3 moves to contact with the fixed frame, the shielding mechanism 5 can fit exactly on the edge of the photovoltaic panel 1 to achieve full coverage of the outer surface of the photovoltaic panel 1.

[0044] The position where the sliding edge 211 is slidably connected to the photovoltaic panel 1 is set as a U-shaped groove structure that fits the photovoltaic panel 1. Since the upper surface of the photovoltaic panel 1 needs to be continuously exposed to direct sunlight, the maintenance and inspection mechanism is designed to slide on the upper end of the outer frame of the photovoltaic panel 1. In order to prevent the positioning mechanism 3 from blocking the photovoltaic panel 1 during the movement on the truss 2, thereby reducing the efficiency of the photovoltaic panel 1, the truss 2 is arranged on the outer frame. Considering that the outer frame of the photovoltaic panel 1 is easily unable to be covered, XY-axis sliding positioning is set, and a U-shaped groove structure is provided, so that the photovoltaic panel 1 is clamped in the U-shaped groove, and the maximum static friction force of the material in the U-shaped groove is half of the gravity of the photovoltaic panel 1, thereby ensuring that when the photovoltaic panel 1 rotates to adjust the incident angle of sunlight, the sliding speed of the photovoltaic panel 1 will not be too fast due to the angle being too large, causing the photovoltaic panel 1 to be damaged due to impact.

[0045] Through the design of the truss 2, the photovoltaic panel 1 can slide steadily when rotating around the sun. The fixed frame 21, as a rectangular structure on the side of the photovoltaic panel 1, provides a solid support for the photovoltaic panel 1, and the sliding connection of the sliding frame 22 enables the photovoltaic panel 1 to be horizontally displaced under the guidance of sunlight, thereby ensuring that the photovoltaic panel 1 efficiently captures solar energy. In view of the special design of the photovoltaic panel 1, the width of the sliding frame 22 fits the photovoltaic panel 1, but the excess length ensures the sliding effect caused by gravity during the rotation of the photovoltaic panel 1, so that the lower end of the photovoltaic panel 1 can not fit the area of ​​the shading strip for shielding. This design effectively solves the problem that the shielding mechanism 5 cannot cover when there is a fault at both ends of the photovoltaic panel 1, thereby ensuring full coverage of the surface of the photovoltaic panel 1 and avoiding continuous heating and energy loss caused by the fault.

[0046] The ingenious arrangement of the sliding edge 211 and the fixed edge 212 enables the shielding mechanism 5 to move effectively under the drive of the positioning mechanism 3, and when in contact with the fixed frame, it completely fits on the edge of the photovoltaic panel 1, achieving full coverage of the outer surface of the photovoltaic panel 1, avoiding the problem of blocking the direct sunlight on the surface of the photovoltaic panel 1 and reducing the efficiency of the photovoltaic panel 1; the photovoltaic panel 1 is clamped on the truss 2 using a U-shaped groove structure, and the maximum static friction force is set to control the sliding speed of the photovoltaic panel 1, effectively avoiding the possibility of damage to the photovoltaic panel 1 due to excessive sliding speed. At the same time, the XY axis sliding positioning of the positioning mechanism 3 enables the photovoltaic panel 1 to maintain stable sliding when rotating to adjust the incident angle of sunlight, ensuring the safe operation of the photovoltaic panel 1.

[0047] In general, the device achieves stable sliding, full coverage and safe operation of the photovoltaic panel 1 through the design of the truss 2 and the special width and length setting of the sliding frame 22, combined with the U-groove structure and the control of the maximum static friction force, thereby improving the power generation efficiency and operational reliability of the photovoltaic power station, while reducing the maintenance and damage risks, and providing beneficial technical support for the long-term stable operation of the photovoltaic power station.

[0048] like Figure 2 As shown, the sliding frame 22 includes a frame, a C-shaped guardrail and a roller 223; the two ends of the frame are rotatably connected to the roller 223, the frame is provided with two frames, and the frame is parallelly clamped on the upper end of the fixed edge 212 through the roller 223, and the two frame frames are movably connected through the positioning mechanism 3; the rolling wheel is a double-layer structure, and one layer of the rolling wheel is provided with concave and convex teeth 224.

[0049] The longer side of the frame is in close contact with the upper surface of the photovoltaic panel 1, but maintains a partial distance. In this state, the frame is set to be vertical to the photovoltaic panel 1. In order to prevent the positioning mechanism 3 from falling off, a C-shaped guardrail is provided. The open side of the C-shaped guardrail is opposite to the positioning mechanism 3, and the C-shaped guardrail is fixedly welded to the frame. Since the two frame frames are dispersedly arranged, but due to the fixation of the positioning mechanism 3, the two frame frames can be fixed by the clamping of the moving wheels 34 on both sides, and then the roller 223 provides the positioning mechanism 3 with the condition of Y-axis movement.

[0050] A more stable method provides another optional solution compared to the dispersed frame. A steel bar is fixed and welded on both sides of the frame to integrate the frame. This method is more stable than the above-mentioned positioning mechanism 3. On the other hand, it can ensure that when the positioning mechanism 3 accidentally falls off, the frame can still maintain the structure of the bracket. The above-mentioned dispersed frame structure is more ingenious and uses fewer structures. These two structures can be selected according to specific circumstances.

[0051] like Figure 7 As shown, the midpoint of the double-layer structure of the roller 223 is an inverted V-shaped groove 225, and the sliding connection between the fixed edge 212 and the roller 223 is set to a V-shaped structure 226 that matches the inverted V-shaped groove 225; inverted trapezoidal grooves 213 are set at both ends of the fixed edge 212, and the depth of the inverted trapezoidal groove 213 is twice the height of the concave-convex tooth 224.

[0052] The connection between the roller 223 and the truss 2 adopts a V-shaped clamping, and a fixed edge 212 is set to match the roller 223. The fixed edge 212 is provided with a V-shaped structure 226, which can fix the roller 223 on the fixed edge 212 and provide a stable sliding track; since the structure of the present invention is used on the photovoltaic panel 1, but due to the size of the photovoltaic field, after reaching a certain length, there must be a gap between adjacent photovoltaic panels 1. In order to ensure that the equipment can still continue to carry out maintenance and inspection work, the roller 223 continues to rotate. Within the range allowed by the frame length, an inverted trapezoidal groove 213 is provided at both ends of the fixed edge 212. The size of the inverted trapezoidal groove 213 structure can be To accommodate 1.5 concave-convex teeth 224, wherein the concave-convex teeth 224 are designed at the outer edge of the roller 223, and since the roller 223 is a double-layer structure, the concave-convex teeth 224 are designed to have only one performance that can meet the structural requirements. When the frame moves on the roller 223, the frame is driven to move between adjacent photovoltaic panels 1. Due to the presence of the concave-convex teeth 224, the longer teeth of the concave-convex teeth 224 are inserted into the inverted trapezoidal groove 213, and the depth of the inverted trapezoidal groove 213 is set to twice the height of the concave-convex teeth 224, which can ensure that the concave-convex teeth 224 are inserted into the inverted trapezoidal groove 213, and the shorter groove can be stuck at the edge, thereby achieving the span between adjacent photovoltaic panels 1.

[0053] The design of the sliding edge 211 realizes the stable sliding of the photovoltaic panel 1 during the rotation of the sun. The frame is parallelly connected to the upper end of the fixed edge 212 through the roller 223, and the two frame frames are movably connected through the positioning mechanism 3 to ensure that the photovoltaic panel 1 can maintain stable sliding during the rotation process. The double-layer structure of the roller 223 and the design with concave and convex teeth 224 increase the connection stability between the roller 223 and the fixed edge 212, and the crossing between adjacent photovoltaic panels 1 is achieved through the setting of the inverted trapezoidal groove 213, ensuring the efficient operation and maintenance of the device; the layout and structural design of the sliding edge 211 make the device more flexible and applicable to different situations. The dispersed frame structure is relatively simple and can be selected according to specific circumstances. Another integrated frame design provides a more stable solution to ensure that when the positioning mechanism 3 does not fall off, the frame still maintains the structure of the bracket, thereby increasing the stability and reliability of the device.

[0054] The C-shaped guardrail prevents the positioning mechanism 3 from falling off while not blocking the direct sunlight on the surface of the photovoltaic panel 1, thereby ensuring efficient power generation of the photovoltaic panel 1. The V-shaped clamping of the roller 223 and the use of the inverted trapezoidal groove 213 make the connection between the roller 223 and the truss 2 more secure. At the same time, when a gap is generated between the photovoltaic panels 1, the combination of the concave-convex teeth 224 and the inverted trapezoidal groove 213 enables the span between adjacent photovoltaic panels 1, ensuring that the device can work flexibly in the arrangement of photovoltaic panels 1 of different lengths.

[0055] The positioning mechanism 3 includes a fixed plate 31, a suspension strut 32, a cross arm 33 and a moving wheel 34; the fixed plate 31 is a rectangular structure, the fixed plate 31 is fixed between the Japanese-character plates, and the two ends are a certain distance away from the Japanese-character plates, the distance is equal to the width of the moving wheel 34, the suspension strut 32 is fixedly connected to the upper end of the fixed plate 31, and the suspension strut 32 is arranged in a rectangular manner with four suspension struts 32, so that the whole has the structure of a car; the two ends of the cross arm 33 are respectively fixedly connected to the two suspension struts 32; the moving wheel 34 is rotatably connected to the upper end of the cross arm 33 through a connecting shaft 35, and the middle of the connecting shaft 35 is fixedly connected to a motor 36, so that one end provides power, and the other row of moving wheels 34 passively move forward, so as to save energy; the structure of the moving wheel 34 is the same as that of the roller 223, the frame frame is clamped with the moving wheel 34, and the clamping point between the frame frame and the moving wheel 34 is set to be a V-shaped protrusion that fits the moving wheel 34.

[0056] The detection mechanism 4 is fixedly connected to the upper end of the fixing plate 31, and a heat sensor is arranged inside the detection mechanism 4. The lower end of the detection mechanism 4 is fixedly connected to a telescopic rod 41, and the end of the telescopic rod 41 is fixedly connected to a universal wheel 42. The universal wheel 42 slides on the outer surface of the photovoltaic panel 1 under the drive of the positioning mechanism 3.

[0057] Since the positioning mechanism 3 drives the detection mechanism 4 to move during its movement, the heat sensor in the detection mechanism 4 scans the surface of the photovoltaic panel 1. The photovoltaic panel 1 converts sunlight into electrical energy through the photovoltaic effect under sunlight, but in this conversion process, some energy will inevitably be lost, part of which will be dissipated in the form of heat. Under this condition, it belongs to conventional heating, which can be analyzed according to the heat sensor in the detection mechanism 4. However, when there is poor contact or circuit problem between the components of the photovoltaic panel 1, it will cause poor current flow or increase in local resistance, and then generate excessive heat, so that the temperature of the faulty part is higher than the surrounding area; and when the photovoltaic panel 1 is covered by dust, pollutants or shadows, it will also reduce its efficiency in receiving light energy, causing heating. At this time, the detection mechanism 4 detects the surface of the photovoltaic panel 1 and cooperates with the shielding mechanism 5 to minimize the problem.

[0058] The positioning mechanism 3 makes the whole device present the structure of a car, and such a layout enhances the stability and portability of the device. The connecting shaft 35 of the moving wheel 34 is rotatably connected to the cross arm 33, one end of which is connected to the motor 36 to provide power, and the moving wheel 34 at the other end is passively advanced, which effectively saves energy consumption; the detection mechanism 4 is fixedly connected to the upper end of the positioning mechanism 3 and is equipped with a heat sensor. During the movement of the positioning mechanism 3, the detection mechanism 4 will also move with it, thereby realizing the scanning and heat detection of the surface of the photovoltaic panel 1. Through the heat sensor, the detection mechanism 4 can accurately analyze the temperature of the surface of the photovoltaic panel 1. This design helps to timely detect the regular heating of the surface of the photovoltaic panel 1, as well as possible abnormal heat, such as excessive heating caused by circuit problems or pollutants, thereby helping to detect faulty photovoltaic panels 1.

[0059] When the photovoltaic panel 1 has poor contact, circuit problems, or is covered with dust or pollutants, these problems will cause abnormal local temperature rise. Through the precise scanning of the detection mechanism 4, these faulty areas can be discovered and located in time, providing an important basis for subsequent maintenance work. Based on the detection results of the detection mechanism 4, the shielding mechanism 5 is used to shade the faulty photovoltaic panel 1 to prevent it from continuing to heat up, thereby ensuring the overall power generation efficiency of the photovoltaic power station.

[0060] like Figure 3 and Figure 4 As shown, the shielding mechanism 5 includes a support frame 51, a rotating roller 52, a shading belt 53, a pulling roller 54, a crossbeam 55 and a cutting tooth 56; the support frame 51 is rotatably connected to the side of the fixed plate 31, and the lower end of the support frame 51 is rotatably connected to the rotating roller 52, the rotating roller 52 rotates synchronously with the shading belt 53, and the shading belt 53 extends a shading strip through the pulling roller 54 to the crossbeam 55, and the lower end of the crossbeam 55 is fixedly connected to the cutting tooth 56.

[0061] like Figure 4 and Figure 5 As shown, a telescopic rod 41 is provided at the lower end of the detection mechanism 4. When the equipment does not detect a fault, the telescopic rod 41 is in a relatively long state, so the universal wheel 42 is in contact with the photovoltaic panel 1 at this time, so that the shading strip 53 at the cutting tooth 56 of the shielding mechanism 5 does not contact the surface of the photovoltaic panel 1. When the heating position of the fault is detected, the telescopic rod 41 is extended to make the shading strip 53 contact the surface of the photovoltaic panel 1, and the shading strip is fitted under the movement of the positioning mechanism 3 until the heating area is completely covered, and then the maintenance personnel are notified to replace and repair it.

[0062] like Figure 8As shown, since the telescopic rod 41 is extended and the position of the telescopic rod 41 is on the side close to the edge, when it is extended, the detection mechanism 4 is displaced by three wheels, namely, the universal wheel 42 and the movable wheel 34 support, so that the shading belt 53 fits the photovoltaic panel 1. After the fault area is fitted, the telescopic rod 41 contracts, so that the two lifted wheels are clamped on the fixed edge 212 again; and, since the cross beam 55 and the side of the fixed plate 31 are fixedly connected with the elastic rod 57, the elastic rod 57 provides support for the shielding mechanism 5 during the extension and retraction of the telescopic rod 41; the elastic rod 57 provides stable support for the equipment during lifting.

[0063] Through this design, once the fault position of abnormal heating of the photovoltaic panel 1 is detected, the shielding mechanism 5 can respond quickly, move the shading belt 53 to the corresponding position, and cover the shading belt 53 on the heating area to prevent the photovoltaic panel 1 from continuing to heat up, thereby avoiding affecting the power generation efficiency of the entire photovoltaic power station. This instant shielding treatment method helps to reduce the negative impact of the fault on the photovoltaic power station, and at the same time provides accurate maintenance guidance for maintenance personnel to replace or repair the faulty photovoltaic panel 1 in time.

[0064] In summary, the shielding mechanism 5 realizes instant shading of the faulty photovoltaic panel 1 by rationally constructing and using the design of the telescopic rod 41, thereby ensuring the normal power generation efficiency and maintenance efficiency of the photovoltaic power station. This fast-response shielding mechanism has a significant beneficial effect on improving the stable operation and fault handling efficiency of the photovoltaic power station.

[0065] During operation, the positioning mechanism 3 realizes XY axis dual-axis positioning through the moving wheel 34 and the roller 223, and performs fault detection on the surface of the photovoltaic panel 1, and moves between adjacent photovoltaic panels 1 through the concave and convex teeth 224. When a fault is detected, the shading belt 53 is attached to the surface of the photovoltaic panel 1 through the telescopic rod 41, and then the surface is shaded through the displacement provided by the motor 36. As the light intensity changes, the equipment will adjust the tilt angle automatically, so that the photovoltaic panel 1 slides under this condition, thereby providing shading for the corners by the shading mechanism 5. After the overall shading is completed, the staff will be informed to carry out timely maintenance and replacement.

[0066] Even though the invention has been described with reference to specific exemplary embodiments thereof, many different alternatives, modifications, etc. will become apparent to those skilled in the art. At the same time, it should be noted that the circuit arrangement within the device of the invention and the identification detection method can be omitted, exchanged or arranged in various ways, while the structure of the device is still able to perform the functionality of the invention.

Claims

1. A photovoltaic power station detection and maintenance device, comprising a photovoltaic panel (1), a truss (2), a positioning mechanism (3), a detection mechanism (4) and a shielding mechanism (5); characterized in that: The outer wall of the photovoltaic panel (1) is installed with a truss (2), the positioning mechanism (3) is clamped with the truss (2), and the truss (2) provides a track for the positioning mechanism (3) to move; the detection mechanism (4) is installed at the upper end of the positioning mechanism (3), and the detection mechanism (4) is positioned by the XY axial movement provided by the positioning mechanism (3), so that the detection mechanism (4) detects the heat on the surface of the photovoltaic panel (1), and then the detection mechanism (4) determines whether the photovoltaic panel (1) is faulty in combination with the temperature of the non-faulty photovoltaic panel (1); the shielding mechanism (5) is installed on the side of the positioning mechanism (3), and the shielding mechanism (5) performs light shielding on the faulty photovoltaic panel (1) by using the heat information provided by the detection mechanism (4); The truss (2) comprises a fixed frame (21) and a sliding frame (22); the fixed frame (21) is slidably mounted on the side of the photovoltaic panel (1); the fixed frame (21) is rectangular in shape; when the photovoltaic panel (1) rotates around the sun, the photovoltaic panel (1) slides through the fixed frame (21); the sliding frame (22) is slidably connected to the upper end of the fixed frame (21), and the sliding frame (22) is horizontally displaced relative to the photovoltaic panel (1); the fixed frame (21) comprises a sliding edge (211) and a fixed edge (212); the length of the sliding edge (211) is shorter than the length of the fixed edge (212); the side wall of the sliding edge (211) is slidably connected to the shorter side wall of the photovoltaic panel (1), and the length of the sliding edge (211) exceeds the length of the sliding connection edge of the photovoltaic panel (1) by 10-15 cm; the length of the fixed edge (212) is the same as the length of the longer side of the photovoltaic panel (1); The sliding frame (22) comprises a frame, a C-shaped guardrail and a roller (223); the frame is in the shape of a Japanese character, and the two ends of the frame are rotatably connected to the rollers (223); the frame is provided with two, and the frame is parallelly clamped on the upper end of the fixed edge (212) through the rollers (223), and the two frame are movably connected through the positioning mechanism (3); the roller (223) is a double-layer structure, and one layer of the roller (223) is provided with concave and convex teeth (224); The positioning mechanism (3) comprises a fixed plate (31), a suspension support (32), a cross arm (33) and a moving wheel (34); the fixed plate (31) is a rectangular structure, the suspension support (32) is fixedly connected to the upper end of the fixed plate (31), four suspension supports (32) are provided, and the suspension supports (32) are arranged in a rectangular shape; the two ends of the cross arm (33) are respectively fixedly connected to the two suspension supports (32); the moving wheel (34) is rotatably connected to the upper end of the cross arm (33) via a connecting shaft (35), and a motor (36) is fixedly connected in the middle of the connecting shaft (35); the structure of the moving wheel (34) is the same as that of the roller (223), the frame is clamped with the moving wheel (34), and the clamping point between the frame and the moving wheel (34) is provided as a V-shaped protrusion that fits the moving wheel (34).

2. A photovoltaic power station detection and maintenance device according to claim 1, characterized in that: The position where the sliding edge (211) is slidably connected to the photovoltaic panel (1) is set as a U-shaped groove structure that fits the photovoltaic panel (1), and the maximum static friction force of the material in the U-shaped groove is half the weight of the photovoltaic panel (1).

3. A photovoltaic power station detection and maintenance device according to claim 1, characterized in that: The shape of the midpoint of the double-layer structure of the roller (223) is an inverted V-shaped groove (225), and the sliding connection between the fixed edge (212) and the roller (223) is arranged as a V-shaped structure (226) that matches the inverted V-shaped groove (225); inverted trapezoidal grooves (213) are arranged at both ends of the fixed edge (212), and the depth of the inverted trapezoidal groove (213) is twice the height of the concave-convex teeth (224).

4. A photovoltaic power station detection and maintenance device according to claim 1, characterized in that: The detection mechanism (4) is fixedly connected to the upper end of the fixing plate (31), and a heat sensor is arranged inside the detection mechanism (4). The lower end of the detection mechanism (4) is fixedly connected to a telescopic rod (41), and the end of the telescopic rod (41) is fixedly connected to a universal wheel (42). The universal wheel (42) slides on the outer surface of the photovoltaic panel (1) under the drive of the positioning mechanism (3).

5. A photovoltaic power station detection and maintenance device according to claim 1, characterized in that: The shielding mechanism (5) comprises a support frame (51), a rotating roller (52), a shading belt (53), a pulling roller (54), a crossbeam (55) and a cutting tooth (56); the support frame (51) is rotatably connected to the side of the fixed plate (31), the lower end of the support frame (51) is rotatably connected to the rotating roller (52), the rotating roller (52) rotates synchronously with the shading belt (53), the shading belt (53) extends a shading strip through the pulling roller (54) to the crossbeam (55), and the lower end of the crossbeam (55) is fixedly connected to the cutting tooth (56); the crossbeam (55) and the side of the fixed plate (31) are fixedly connected with an elastic rod (57), and the elastic rod (57) provides support for the shielding mechanism (5) during the extension and retraction process of the telescopic rod (41).

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