Photovoltaic panel cleanliness detector

Abstract

The utility model relates to a photovoltaic panel cleanliness detector, which comprises a U-shaped positioning seat, and is characterized in that a protective shell is arranged above the bottom surface of the U-shaped positioning seat, two longitudinal electric push-pull rods are arranged on the inner top surface of the protective shell, and the lower ends of telescopic rods of the two longitudinal electric push-pull rods are jointly connected with a horizontal support plate; a left supporting lug and a right supporting lug are arranged on the lower surface of the horizontal supporting plate in a spaced mode, a front horizontal shaft and a rear horizontal shaft which are parallel to each other are arranged between the two supporting lugs, a front positioning plate is arranged on the front horizontal shaft, a rear positioning plate is arranged on the rear horizontal shaft, a He-Ne laser is arranged on the front positioning plate, and a photoelectric detector is arranged on the rear positioning plate. A synchronous transmission mechanism is arranged between the front horizontal shaft and the rear horizontal shaft, a driving mechanism is arranged between the horizontal supporting plate and the front horizontal shaft, a detection avoiding through opening is formed in the bottom face of the U-shaped positioning base, and lifting supports are fixed to the left side and the right side of the detection avoiding through opening. The device is combined with an unmanned aerial vehicle for use, the use flexibility is remarkably improved, and the detection area can be greatly increased.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic equipment maintenance technology, specifically to a photovoltaic panel cleanliness tester. Background Technology

[0002] A photovoltaic panel cleanliness tester is an instrument used to measure the surface cleanliness of photovoltaic panels. It helps customers assess the degree of contamination on the surface of photovoltaic panels, enabling timely cleaning measures to ensure the normal power generation efficiency of the photovoltaic panels.

[0003] For example, CN 222028190 U discloses a photovoltaic panel cleanliness tester, which includes a base, a support block fixedly connected to the upper middle part of the base, four evenly distributed reinforcing ribs welded to the vertical end face of the support block, and the short right-angle side of each reinforcing rib welded to the base. A movable plate is slidably connected to the inner side wall of the vertical part of the support block. This tester, through the coordinated use of a He-Ne laser, control circuit module, photodetector, and other structures, can perform photoelectric detection of the cleanliness of the photovoltaic panel surface. With a motor and gear mechanism, a rotating shaft can be driven to deflect the support plate, thereby rotating the He-Ne laser and other components, allowing for fine-tuning of the He-Ne laser's position and improving the tester's adaptability. However, the following problems still exist: during operation, it needs to be fixed to the side of the photovoltaic panel, and can only detect nearby photovoltaic panels, resulting in a small detection area and inflexible use. Utility Model Content

[0004] The purpose of this invention is to provide a photovoltaic panel cleanliness detector with a reasonable structure and reliable operation that solves the above-mentioned problems. When used in conjunction with a drone, it significantly improves the flexibility of use and can greatly increase the detection area.

[0005] The technical solution of this utility model is:

[0006] A photovoltaic panel cleanliness tester includes a U-shaped positioning base. The key technical features are: a protective shell is fixed above the bottom surface of the U-shaped positioning base; two longitudinal electric push-pull rods are symmetrically arranged on the top surface of the protective shell; the lower ends of the telescopic rods of the two longitudinal electric push-pull rods are connected to a horizontal support plate; two support ears, left and right, are spaced apart on the lower surface of the horizontal support plate; a front horizontal axis and a rear horizontal axis are arranged parallel to each other between the two support ears; a front positioning plate is arranged on the front horizontal axis; a rear positioning plate is arranged on the rear horizontal axis; a He-Ne laser is arranged on the front positioning plate; a photodetector is arranged on the rear positioning plate; a synchronous transmission mechanism is arranged between the front and rear horizontal axes; a driving mechanism is arranged between the horizontal support plate and the front horizontal axis; a detection avoidance opening is provided on the bottom surface of the U-shaped positioning base; and lifting brackets are fixed on the left and right sides of the detection avoidance opening.

[0007] The aforementioned photovoltaic panel cleanliness tester has mounting holes on the upper left and right sides of the U-shaped positioning base for connecting with a drone.

[0008] The aforementioned photovoltaic panel cleanliness tester has a controller fixed on the inner top surface of the protective shell, which is connected to the longitudinal electric push-pull rod, He-Ne laser, photodetector, and drive mechanism.

[0009] The aforementioned photovoltaic panel cleanliness tester includes a drive mechanism comprising a motor reducer fixed to the upper surface of a horizontal support plate, a drive gear fixed to the output shaft of the motor reducer, and a driven gear fixed to the front horizontal shaft and meshing with the drive gear. The horizontal support plate is provided with clearance openings corresponding to the drive gear and the driven gear.

[0010] The photovoltaic panel cleanliness tester described above includes a synchronous transmission mechanism comprising a first synchronous wheel fixed on a front horizontal shaft, a second synchronous wheel fixed on a rear horizontal shaft, and an intermediate wheel meshing with the first and second synchronous wheels respectively. The axle of the intermediate wheel is connected to a support ear, and the synchronous transmission mechanism and the drive mechanism are located on opposite sides of the two support ears.

[0011] In the aforementioned photovoltaic panel cleanliness tester, strip-shaped magnetic blocks are fixed on the left and right edges of the lower surface of the horizontal support plate, and the bottom surface of the U-shaped positioning seat is provided with metal positioning grooves that correspond one-to-one with the strip-shaped magnetic blocks.

[0012] The aforementioned photovoltaic panel cleanliness tester has a U-shaped lifting bracket, with its upper two ends connected and fixed to the bottom surface of the U-shaped positioning seat, and a shock-absorbing protective layer fixed to the bottom section of the lifting bracket.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model is used in conjunction with a drone. After takeoff, two longitudinal electric push-pull rods are activated to drive the horizontal support plate downward. The He-Ne laser on the front positioning plate and the photodetector on the rear positioning plate protrude from the detection clearance opening on the bottom surface of the U-shaped positioning seat to perform detection operations on the photovoltaic panels passing below. During the detection process, the front and rear horizontal axes can be driven to swing synchronously and in the same direction within a set range through the drive mechanism and synchronous transmission mechanism, thereby causing the He-Ne laser and photodetector to swing synchronously and in the same direction, quickly achieving the purpose of adjusting the detection angle, significantly improving the flexibility of use, and greatly increasing the detection area.

[0015] 2. After the work is completed, the two longitudinal electric push-pull rods drive the He-Ne laser and photodetector to retract into the protective shell, avoiding interference with the ground or other equipment on the ground when not in operation, thus providing good protection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the working state of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the He-Ne laser, photodetector, and peripheral components of this utility model;

[0019] Figure 4 This is a schematic diagram of the synchronous transmission mechanism of this utility model.

[0020] In the diagram: 1. U-shaped positioning seat, 2. Protective shell, 3. Lifting bracket, 4. Shock-absorbing protective layer, 5. Longitudinal electric push-pull rod, 6. Drive gear, 7. Motor reducer, 8. Controller, 9. Horizontal support plate, 10. Detection and clearance opening, 11. Driven gear, 12. Support ear, 13. Front positioning plate, 14. He-Ne laser, 15. Front horizontal shaft, 16. First synchronous pulley, 17. Strip magnetic block, 18. Metal positioning groove, 19. Photodetector, 20. Rear positioning plate, 21. Rear horizontal shaft, 22. Intermediate pulley, 23. Second synchronous pulley. Detailed Implementation

[0021] The present invention will be described in detail with reference to the accompanying drawings.

[0022] like Figures 1-4 As shown, the photovoltaic panel cleanliness tester includes a U-shaped positioning seat 1, and a protective shell 2 is fixed on the bottom surface of the U-shaped positioning seat 1.

[0023] The protective shell 2 has two longitudinal electric push-pull rods 5 symmetrically arranged on its inner top surface. The lower ends of the telescopic rods of the two longitudinal electric push-pull rods 5 are connected to a horizontal support plate 9. The lower surface of the horizontal support plate 9 has two support ears 12 spaced apart, one on the left and one on the right. Between the two support ears 12 are a front horizontal shaft 15 and a rear horizontal shaft 21 that are parallel to each other. The front horizontal shaft 15 has a front positioning plate 13, and the rear horizontal shaft 21 has a rear positioning plate 20. The front positioning plate 13 has a He-Ne laser 14, and the rear positioning plate 20 has a photodetector 19.

[0024] A synchronous transmission mechanism is provided between the front horizontal shaft 15 and the rear horizontal shaft 21, and a drive mechanism is provided between the horizontal support plate 9 and the front horizontal shaft 15. In this embodiment, the drive mechanism includes a motor reducer 7 fixed to the upper surface of the horizontal support plate 9, a driving gear 6 fixed to the output shaft of the motor reducer 7, and a driven gear 11 fixed to the front horizontal shaft 15 and meshing with the driving gear 6. The horizontal support plate 9 is provided with clearance openings corresponding to the driving gear 6 and the driven gear 11. The synchronous transmission mechanism includes a first synchronous wheel 16 fixed to the front horizontal shaft 15, a second synchronous wheel 23 fixed to the rear horizontal shaft 21, and an intermediate wheel 22 meshing with the first synchronous wheel 16 and the second synchronous wheel 23 respectively. The axle of the intermediate wheel 22 is connected to the support lug 12, and the synchronous transmission mechanism and the drive mechanism are located on both sides of the two support lugs 12.

[0025] The bottom surface of the U-shaped positioning base 1 is provided with a detection and clearance opening 10, and landing brackets 3 are fixed on the left and right sides of the detection and clearance opening 10. The landing brackets 3 are U-shaped, and their upper two ends are respectively connected and fixed to the bottom surface of the U-shaped positioning base 1. The bottom section of the landing brackets 3 is fixed with a shock-absorbing protective layer 4. The upper ends of the left and right side walls of the U-shaped positioning base 1 are respectively provided with mounting holes for connecting with the UAV.

[0026] The inner top surface of the protective shell 2 is fixed with a controller 8 that is connected to the longitudinal electric push-pull rod 5, the He-Ne laser 14, the photodetector 19, and the drive mechanism. The left and right edges of the lower surface of the horizontal support plate 9 are respectively fixed with strip-shaped magnetic blocks 17, and the bottom surface of the U-shaped positioning seat 1 is provided with metal positioning grooves 18 that correspond one-to-one with the strip-shaped magnetic blocks 17.

[0027] Working principle:

[0028] This utility model is fixed to a drone. After the drone takes off, two longitudinal electric push-pull rods 5 are activated to drive the horizontal support plate 9 downward. The strip-shaped magnetic block 17 on the lower surface of the horizontal support plate 9 is inserted into the metal positioning groove 18 for positioning. At this time, the He-Ne laser 14 on the front positioning plate 13 and the photodetector 19 on the rear positioning plate 20 respectively protrude from the detection clearance opening 10 on the bottom surface of the U-shaped positioning seat 1 to perform detection operations on the photovoltaic panel passing below. As described in the prior art, the laser beam emitted by the He-Ne laser 14 is reflected and scattered on the surface of the photovoltaic panel. The photodetector 19 receives the light signal and converts it into an electrical signal. The controller 8 performs A / D conversion and signal processing on the obtained electrical signal, and obtains the cleanliness of the photovoltaic panel based on the electrical signal strength.

[0029] During the detection process, the front and rear horizontal shafts 15 and 21 can be driven to swing synchronously and in the same direction within a set range through the drive mechanism and synchronous transmission mechanism, thereby causing the He-Ne laser 14 and photodetector 19 to swing synchronously and in the same direction, quickly adjusting the detection angle. After the work is completed, the two longitudinal electric push-pull rods 5 drive the He-Ne laser 14 and photodetector 19 to retract into the protective shell 2, avoiding interference with the ground or other equipment on the ground when not in operation, thus providing good protection.

[0030] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this patent.

Claims

1. A photovoltaic panel cleanliness tester, comprising a U-shaped positioning base, characterized in that: A protective shell is fixed above the bottom surface of the U-shaped positioning seat. Two longitudinal electric push-pull rods are symmetrically arranged on the top surface of the protective shell. The lower ends of the telescopic rods of the two longitudinal electric push-pull rods are connected to a horizontal support plate. The lower surface of the horizontal support plate is provided with two support ears, left and right, spaced apart. A front horizontal axis and a rear horizontal axis are provided between the two support ears. A front positioning plate is provided on the front horizontal axis, and a rear positioning plate is provided on the rear horizontal axis. A He-Ne laser is provided on the front positioning plate, and a photoelectric detector is provided on the rear positioning plate. A synchronous transmission mechanism is provided between the front horizontal axis and the rear horizontal axis. A drive mechanism is provided between the horizontal support plate and the front horizontal axis. The bottom surface of the U-shaped positioning seat is provided with a detection and avoidance passage, and lifting brackets are fixed on the left and right sides of the detection and avoidance passage.

2. The photovoltaic panel cleanliness detector according to claim 1, characterized in that: The upper left and right side walls of the U-shaped positioning seat are respectively provided with mounting holes for connecting to the drone.

3. The photovoltaic panel cleanliness detector according to claim 1, characterized in that: The inner top surface of the protective shell is fixed with a controller that is connected to the longitudinal electric push-pull rod, the He-Ne laser, the photodetector, and the drive mechanism.

4. The photovoltaic panel cleanliness tester according to claim 1, characterized in that: The drive mechanism includes a motor reducer fixed to the upper surface of a horizontal support plate, a drive gear fixed to the output shaft of the motor reducer, and a driven gear fixed to the front horizontal shaft and meshing with the drive gear. The horizontal support plate is provided with clearance openings corresponding to the drive gear and the driven gear.

5. The photovoltaic panel cleanliness tester according to claim 1, characterized in that: The synchronous transmission mechanism includes a first synchronous wheel fixed on the front horizontal shaft, a second synchronous wheel fixed on the rear horizontal shaft, and an intermediate wheel that meshes with the first and second synchronous wheels respectively. The axle of the intermediate wheel is connected to the support lug. The synchronous transmission mechanism and the drive mechanism are located on both sides of the two support lugs.

6. The photovoltaic panel cleanliness tester according to claim 1, characterized in that: The horizontal support plate has strip-shaped magnetic blocks fixed to its left and right edges on its lower surface, and the bottom surface of the U-shaped positioning seat has metal positioning grooves that correspond one-to-one with the strip-shaped magnetic blocks.

7. The photovoltaic panel cleanliness tester according to claim 1, characterized in that: The landing gear is U-shaped, with its upper two ends connected and fixed to the bottom surface of the U-shaped positioning seat, and a shock-absorbing protective layer fixed to the bottom section of the landing gear.

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