A self-cleaning solar photovoltaic panel

Abstract

The application relates to the technical field of solar power generation, in particular to a self-cleaning solar photovoltaic panel which comprises a support, the support is connected with a photovoltaic panel, and the self-cleaning solar photovoltaic panel further comprises a moving roller brush structure connected with the support, the moving roller brush structure comprises a variable-pitch rotary drive mechanism, the variable-pitch rotary drive mechanism comprises a driving motor, a lead screw and a moving seat, the moving seat is connected with a speed-increasing transmission assembly, the speed-increasing transmission assembly is connected with a height-adjusting assembly, the speed-increasing transmission assembly is connected with a gear, the gear is meshed with a rack, the speed-increasing transmission assembly is connected with a roller, the roller is connected with a plurality of brush layers and a plurality of sponge brush layers, and the support is connected with a water supply structure. The self-cleaning solar photovoltaic panel is convenient for selectively using different materials to sweep the photovoltaic panel, thereby respectively performing special cleaning on dust and stubborn stains adhered to the photovoltaic panel, improving the cleaning effect, and without needing to separately set a driving power source for the roller, so that the number of power sources of the self-cleaning solar photovoltaic panel is reduced.

Description

Technical Field

[0001] This invention relates to the field of solar power generation technology, specifically a self-cleaning solar photovoltaic panel. Background Technology

[0002] Photovoltaic panels are key components that directly convert solar radiation into electrical energy, and are widely used in distributed photovoltaic power generation systems, large-scale ground-mounted power plants, and building-integrated photovoltaics (BIPV). Because photovoltaic panels are typically exposed to the outdoor environment, dust inevitably accumulates on their surfaces during operation, and some panels even have stubborn stains adhering to their surfaces. This dust and stains can block light, leading to a decrease in photoelectric conversion efficiency.

[0003] In existing technologies, photovoltaic panel surfaces are typically cleaned manually, which is inefficient. Existing self-cleaning solar photovoltaic panels can only be simply brushed with a brush. Due to the soft nature of the brush, these panels cannot effectively clean stubborn stains or perform specialized cleaning tasks based on different objects, resulting in reduced cleaning effectiveness. Furthermore, the roller brush structure often requires a separate power source, necessitating additional installation. This complex structure also hinders remote control of the solar photovoltaic panels from the remote control center, increasing the difficulty of control. Summary of the Invention

[0004] The purpose of this invention is to provide a self-cleaning solar photovoltaic panel to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A self-cleaning solar photovoltaic panel includes a support frame, wherein the photovoltaic panel is fixedly connected to the support frame, and further includes:

[0007] A movable roller brush structure connected to a bracket includes a variable-pitch rotary drive mechanism connected to the bracket. The variable-pitch rotary drive mechanism includes a drive motor fixedly connected to the bracket. A lead screw is fixedly connected to the output shaft of the drive motor. The lead screw is threadedly connected to a movable seat slidably connected to the bracket. The movable seat is connected to a speed-increasing transmission component. The speed-increasing transmission component is connected to a height adjustment component, which is connected to the movable seat. A gear is coaxially connected to the speed-increasing transmission component. A rack fixedly connected to the bracket is meshed with the gear. A roller is connected to the speed-increasing transmission component. Multiple sets of brush layers are installed at equal angles on the circumferential surface of the roller. Multiple sets of sponge brush layers are fixedly connected between the brush layers. A driven telescopic frame is fixedly connected to the movable seat. A first rotation limit seat is fixedly connected to the moving end of the driven telescopic frame. The first rotation limit seat is rotatably connected to the roller. A sliding support mechanism is connected to the bracket and is connected to the roller.

[0008] Water supply structure connected to the support frame.

[0009] As a further improvement of the present invention: the speed-increasing transmission assembly includes a first transmission shaft rotatably connected to the movable seat, the first transmission shaft being coaxially and fixedly connected to a gear, a first transmission wheel being coaxially and fixedly connected to the first transmission shaft, a first hinge frame being hinged to the movable seat, a second hinge frame being hinged to the first hinge frame, a second transmission wheel being rotatably mounted on the first hinge frame, the second transmission wheel and the first transmission wheel being connected together to a first transmission belt, a third transmission wheel being coaxially and fixedly connected to the second transmission wheel, the diameter of the third transmission wheel being larger than the diameter of the second transmission wheel, a second transmission shaft being rotatably connected to the second hinge frame, the second transmission shaft being coaxially and fixedly connected to a roller, a fourth transmission wheel being fixedly connected to the second transmission shaft, the fourth transmission wheel and the third transmission wheel being connected together to a second transmission belt, the diameter of the fourth transmission wheel being smaller than the diameter of the third transmission wheel, and the first hinge frame being connected to a height adjustment assembly.

[0010] As a further improvement of the present invention: the height adjustment component includes two sets of active telescopic frames fixedly connected to the movable seat, the movable end of the active telescopic frame is fixedly connected to a frame, the two sets of frames are slidably connected to a set of synchronization frames, and the synchronization frames are hinged to the first hinge frame.

[0011] As a further improvement of the present invention: the sliding support mechanism includes a guide rod fixedly connected to the bracket, the guide rod being slidably connected to a hollow sleeve, the hollow sleeve being slidably connected to an extension frame, the extension frame being fixedly connected to a second rotation limit seat, the second rotation limit seat being rotatably connected to a roller, and the hollow sleeve being slidably connected to the bracket.

[0012] As a further improvement of the present invention: the water supply structure includes a water tank fixedly installed at the bottom of the bracket, a water pump fixedly installed at the lower end of the water tank, a water supply pipe fixedly connected to the water pump, a nozzle fixedly connected to the water supply pipe, the nozzle being disposed above the photovoltaic panel, and the nozzle being fixedly connected to the bracket.

[0013] As a further improvement of the present invention: the support is provided with symmetrically distributed water-blocking edges.

[0014] As a further improvement of the present invention: the bracket is fixedly connected to two sets of bending frames, and the two sets of bending frames are jointly fixedly connected to a set of cameras.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] When cleaning photovoltaic panels is required, if only dust removal is needed, the drive motor drives the lead screw to rotate, which in turn drives the moving seat to move. The moving seat slides relative to the bracket, which provides support for the moving seat. The moving seat drives the speed-increasing transmission component to move, causing the gear to move. The gear rotates while meshing with the rack, applying a driving force to the speed-increasing transmission component. The speed-increasing transmission component drives the roller to rotate while moving linearly, causing the brush layer to rotate and sweep away dust from the photovoltaic panel. Then, the height of the speed-increasing transmission component is adjusted to change its shape, moving the roller away from the photovoltaic panel. The first rotation limit seat and the sliding support mechanism jointly provide support for the roller. As the rotating limit seat moves with the roller, the driven telescopic frame extends and retracts, and then the water supply structure sprays water to wash away residual dust. If stubborn stains need to be cleaned on the photovoltaic panel, the height of the speed-increasing transmission component is adjusted to allow the roller to approach the photovoltaic panel under the drive of the speed-increasing transmission component. During this process, the first rotating limit seat and the sliding support mechanism jointly provide support for the roller. As the first rotating limit seat moves with the roller, the driven telescopic frame extends and retracts to provide a guide for the first rotating limit seat. Under the drive of the roller, the brush layer presses against the photovoltaic panel, and the sponge brush layer presses against the surface of the photovoltaic panel, so that the rotating roller drives the sponge brush layer to rotate. Through the friction of the sponge brush layer, stubborn stains on the photovoltaic panel are further removed. This invention cleans photovoltaic panels by employing a movable roller brush structure, a water supply structure, and a sliding support mechanism in a coordinated manner. By adjusting the movable roller brush structure, different materials can be used to brush the photovoltaic panels, thereby specifically cleaning dust and stubborn stains adhering to the panels, improving the cleaning effect. Furthermore, due to the coordination of the speed-increasing transmission component, the height adjustment component, gears, and racks, this invention eliminates the need for a separate power source to drive the roller rotation, thus reducing the number of power sources required and facilitating the control operation of this invention. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the present invention viewed from below.

[0020] Figure 4 For the present invention Figure 1 A magnified view of a portion of point A in the middle.

[0021] Figure 5 For the present invention Figure 2A magnified view of a portion of point B in the middle.

[0022] Figure 6 For the present invention Figure 3 A magnified view of a portion of point C.

[0023] Figure 7 This is a three-dimensional structural diagram of the interaction between the movable seat, the speed-increasing transmission assembly, the height adjustment assembly, the driven telescopic frame, and the first rotation limit seat of the present invention.

[0024] Figure 8 This is a three-dimensional structural diagram of the first hinge frame of the present invention.

[0025] Figure 9 This is a three-dimensional structural diagram of the synchronization frame of the present invention.

[0026] Figure 10 This is a three-dimensional structural diagram of the roller, brush layer, and sponge brush layer of the present invention in cooperation with each other.

[0027] In the diagram: 1. Support frame; 2. Photovoltaic panel; 3. Moving roller brush structure; 4. Variable pitch rotary drive mechanism; 5. Drive motor; 6. Lead screw; 7. Moving seat; 8. Speed-increasing transmission assembly; 9. Height adjustment assembly; 10. Gear; 11. Rack; 12. Roller; 13. Brush layer; 14. Sponge brush layer; 15. Camera; 16. Driven telescopic frame; 17. First rotation limit seat; 18. Water supply structure; 19. Sliding support mechanism; 20. First transmission shaft; 21. First transmission wheel; 2. First articulated frame; 23. Second articulated frame; 24. Second transmission wheel; 25. First transmission belt; 26. Third transmission wheel; 27. Second transmission shaft; 28. Fourth transmission wheel; 29. ​​Second transmission belt; 30. Active telescopic frame; 31. Frame; 32. Synchronization frame; 33. Guide rod; 34. Hollow sleeve; 35. Extension frame; 36. Second rotation limit seat; 37. Water tank; 38. Water pump; 39. Water supply pipe; 40. Sprinkler head; 41. Water barrier; 42. Bending frame. Detailed Implementation

[0028] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0029] Example 1. See also Figures 1-10 As shown, a self-cleaning solar photovoltaic panel includes a support 1, on which a photovoltaic panel 2 is fixedly connected, the photovoltaic panel 2 being inclinedly disposed on the support 1, and further includes:

[0030] A movable roller brush structure 3 is connected to the bracket 1. The movable roller brush structure 3 includes a variable pitch rotary drive mechanism 4 connected to the bracket 1. The variable pitch rotary drive mechanism 4 includes a drive motor 5 fixedly connected to the bracket 1. The output shaft of the drive motor 5 is fixedly connected to a lead screw 6. The lead screw 6 is threadedly connected to a movable seat 7 slidably connected to the bracket 1. The movable seat 7 is connected to a speed-increasing transmission assembly 8. The speed-increasing transmission assembly 8 is connected to a height adjustment assembly 9, which is connected to the movable seat 7. The speed-increasing transmission assembly 8 is coaxially connected to a gear 10, which meshes with the gear. A rack 11 is fixedly connected to the bracket 1. The speed-increasing transmission assembly 8 is connected to a roller 12. Multiple sets of brush layers 13 are installed at equal angles on the circumferential surface of the roller 12. Multiple sets of sponge brush layers 14 are fixedly connected to the roller 12 and disposed between the brush layers 13. A driven telescopic frame 16 is fixedly connected to the movable end of the driven telescopic frame 16. A first rotation limit seat 17 is fixedly connected to the movable end of the driven telescopic frame 16. The first rotation limit seat 17 is rotatably connected to the roller 12. A sliding support mechanism 19 is connected to the bracket 1. The sliding support mechanism 19 is connected to the roller 12.

[0031] Water supply structure 18 connected to bracket 1.

[0032] When cleaning the photovoltaic panel 2 is required, if only dust removal is needed, the drive motor 5 drives the lead screw 6 to rotate. The rotating lead screw 6 drives the moving seat 7 to move. The moving seat 7 slides relative to the bracket 1. At this time, the bracket 1 provides support for the moving seat 7. The moving moving seat 7 drives the speed-increasing transmission component 8 to move, causing the gear 10 to move. The gear 10 rolls while meshing with the rack 11, so that the gear 10 applies a driving force to the speed-increasing transmission component 8. The speed-increasing transmission component 8 drives the roller 12 to rotate while driving the roller 12 to move linearly. The roller 12 drives the brush layer 13 to rotate to sweep the dust on the photovoltaic panel 2. Then, the height adjustment component 9 adjusts the extension height of the speed-increasing transmission component 8, so that the speed-increasing transmission component 8 is shaped so that the roller 12 is away from the photovoltaic panel 2. The first rotation limit seat 17 and the sliding support mechanism 19 jointly provide support for the roller 12, and in the first rotation... As the moving limit seat 17 moves with the roller 12, the driven telescopic frame 16 performs a driven telescopic operation, and then the water supply structure 18 sprays water to wash away residual dust. If it is necessary to clean stubborn stains on the photovoltaic panel 2, the height adjustment component 9 adjusts the extension height of the speed-increasing transmission component 8, so that the roller 12 approaches the photovoltaic panel 2 under the drive of the speed-increasing transmission component 8. During this period, the first rotation limit seat 17 and the sliding support mechanism 19 jointly provide support for the roller 12. As the first rotation limit seat 17 moves with the roller 12, the driven telescopic frame 16 performs a driven telescopic operation to provide a moving guide for the first rotation limit seat 17. Under the drive of the roller 12, the brush layer 13 presses against the photovoltaic panel 2, and the sponge brush layer 14 presses on the surface of the photovoltaic panel 2, so that the rotating roller 12 drives the sponge brush layer 14 to rotate. Through the friction of the sponge brush layer 14, stubborn stains on the photovoltaic panel 2 are further removed. This invention cleans the photovoltaic panel 2 by cooperating with the movable roller brush structure 3, the water supply structure 18, and the sliding support mechanism 19. By adjusting the movable roller brush structure 3, different materials can be used to brush the photovoltaic panel 2, thereby specifically cleaning dust and stubborn stains adhering to the photovoltaic panel 2, improving the cleaning effect. Furthermore, due to the cooperation of the speed-increasing transmission component 8, the height adjustment component 9, the gear 10, and the rack 11, this invention eliminates the need for a separate power source to drive the roller 12 to rotate, thereby reducing the number of power sources required and facilitating the control operation of this invention.

[0033] In one embodiment, the speed-increasing transmission assembly 8 includes a first transmission shaft 20 rotatably connected to the movable seat 7. The first transmission shaft 20 is coaxially and fixedly connected to the gear 10. A first transmission wheel 21 is coaxially and fixedly connected to the first transmission shaft 20. The movable seat 7 is hinged to a first hinge frame 22, which is hinged to the height adjustment assembly 9. A second hinge frame 23 is hinged to the first hinge frame 22. A second transmission wheel 24 is rotatably mounted on the first hinge frame 22. The second transmission wheel 24 and the first transmission wheel 21 are connected together to a first transmission belt. 25. The second transmission wheel 24 is coaxially and fixedly connected to the third transmission wheel 26. The diameter of the third transmission wheel 26 is larger than the diameter of the second transmission wheel 24. The second hinge frame 23 is rotatably connected to the second transmission shaft 27. The second transmission shaft 27 is coaxially and fixedly connected to the roller 12. The second transmission shaft 27 is fixedly connected to the fourth transmission wheel 28. The fourth transmission wheel 28 and the third transmission wheel 26 are jointly connected to the second transmission belt 29. The diameter of the fourth transmission wheel 28 is smaller than the diameter of the third transmission wheel 26. The first hinge frame 22 is connected to the height adjustment component 9. The rotating gear 10 drives the first transmission shaft 20 to rotate, which in turn drives the first transmission wheel 21 to rotate. The first transmission wheel 21 drives the second transmission wheel 24 to rotate via the first transmission belt 25. The second transmission wheel 24 drives the third transmission wheel 26 to rotate via the first transmission belt 29. The third transmission wheel 26 drives the fourth transmission wheel 28 to rotate via the second transmission belt 29, which in turn drives the second transmission shaft 27 to rotate. This causes the second transmission shaft 27 to drive the roller 12 to rotate. The height adjustment assembly 9 drives the first hinge frame 22 to rotate, thereby adjusting the positions of the second transmission wheel 24 and the third transmission wheel 26. 2 drives the second hinge frame 23 to rotate. Since the driven telescopic frame 16 provides a moving guide for the first rotation limit seat 17, the first rotation limit seat 17 is connected to the roller 12. The roller 12 is connected to the second drive shaft 27 installed on the second hinge frame 23, so that the second drive shaft 27 only moves linearly along the extension direction of the driven telescopic frame 16, thereby moving the roller 12 linearly, thereby adjusting the distance between the roller 12 and the photovoltaic panel 2. In order to adjust the distance between the roller 12 and the photovoltaic panel 2, the speed-increasing transmission component 8, under the adjustment of the height adjustment component 9, allows the roller 12 to rotate at different positions.

[0034] In one embodiment, the height adjustment component 9 includes two sets of active telescopic frames 30 fixedly connected to the movable base 7. A frame 31 is fixedly connected to the movable end of each active telescopic frame 30. A synchronized frame 32 is slidably connected to both sets of frames 31, and the synchronized frame 32 is hinged to the first hinged frame 22. The active telescopic frame 30 drives the frame 31 to move, and the frame 31 drives the synchronized frame 32 to move. Because the synchronized frame 32 is hinged to the first hinged frame 22, the synchronized frame 32 slides relative to the frame 31 while the first hinged frame 22 rotates. As one end of the first hinged frame 22 rises during rotation, the second hinged frame 23 rises accordingly. The second hinged frame 23 drives the second transmission shaft 27 to move linearly away from the photovoltaic panel 2, thereby enabling the height adjustment component 9 to adjust the shape of the speed-increasing transmission component 8.

[0035] In one embodiment, the sliding support mechanism 19 includes a guide rod 33 fixedly connected to the bracket 1. A hollow sleeve 34 is slidably connected to the guide rod 33, and an extension frame 35 is slidably connected to the hollow sleeve 34. A second rotation limit seat 36 is fixedly connected to the extension frame 35. The second rotation limit seat 36 is rotatably connected to the roller 12, and the hollow sleeve 34 is slidably connected to the bracket 1. When adjusting the distance between the roller 12 and the photovoltaic panel 2, the roller 12 drives the second rotation limit seat 36 to move, which in turn drives the extension frame 35 to move. The hollow sleeve 34 provides a guide for the moving extension frame 35. Furthermore, when the roller 12 moves along a straight line parallel to the surface of the photovoltaic panel 2, the hollow sleeve 34 slides along the guide rod 33, which provides a guide for the hollow sleeve 34, thereby enabling the sliding support mechanism 19 to provide a limiting guide for the moving roller 12.

[0036] In one embodiment, the water supply structure 18 includes a water tank 37 fixedly installed at the bottom of the bracket 1. A water pump 38 is fixedly installed at the lower end of the water tank 37. The water pump 38 is fixedly connected to a water supply pipe 39, and a nozzle 40 is fixedly connected to the water supply pipe 39. The nozzle 40 is positioned above the photovoltaic panel 2 and is fixedly connected to the bracket 1. The water pump 38 draws water from the water tank 37 and then pumps the water through the water supply pipe 39 into the nozzle 40. The nozzle 40 then sprays water to clean the photovoltaic panel 2.

[0037] In one embodiment, the support 1 is provided with symmetrically distributed water-blocking edges 41. The water-blocking edges 41 are used to block the water flow and guide the water flow in a directional manner.

[0038] Example 2, based on Example 1, see [link / reference] Figures 1-3The bracket 1 is fixedly connected to two sets of bending frames 42, and the two sets of bending frames 42 are jointly fixedly connected to a set of cameras 15. The cameras 15 are used to photograph the surface of the photovoltaic panel 2. The remote control center analyzes the images captured by the cameras 15 to determine whether there is dust on the surface of the photovoltaic panel 2. After the initial dust removal, the remote control center analyzes the images captured by the cameras 15 again to determine whether there are stubborn stains on the surface of the photovoltaic panel 2. If stubborn stains are present, the sponge brush layer 14 is used for friction cleaning, thereby improving the cleaning effect, avoiding the residue of stubborn stains, and preventing the photovoltaic panel 2 from being over-cleaned repeatedly after cleaning, thus saving energy.

[0039] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A self-cleaning solar photovoltaic panel, comprising a support frame, wherein the photovoltaic panel is fixedly connected to the support frame, characterized in that, Also includes: A movable roller brush structure connected to a bracket includes a variable-pitch rotary drive mechanism connected to the bracket. The variable-pitch rotary drive mechanism includes a drive motor fixedly connected to the bracket. A lead screw is fixedly connected to the output shaft of the drive motor. The lead screw is threadedly connected to a movable seat slidably connected to the bracket. The movable seat is connected to a speed-increasing transmission component. The speed-increasing transmission component is connected to a height adjustment component, which is connected to the movable seat. A gear is coaxially connected to the speed-increasing transmission component. A rack fixedly connected to the bracket is meshed with the gear. A roller is connected to the speed-increasing transmission component. Multiple sets of brush layers are installed at equal angles on the circumferential surface of the roller. Multiple sets of sponge brush layers are fixedly connected between the brush layers. A driven telescopic frame is fixedly connected to the movable seat. A first rotation limit seat is fixedly connected to the moving end of the driven telescopic frame. The first rotation limit seat is rotatably connected to the roller. A sliding support mechanism is connected to the bracket and is connected to the roller. Water supply structure connected to the support frame.

2. The self-cleaning solar photovoltaic panel according to claim 1, characterized in that, The speed-increasing transmission assembly includes a first transmission shaft rotatably connected to a movable seat. The first transmission shaft is coaxially and fixedly connected to a gear. A first transmission wheel is coaxially and fixedly connected to the first transmission shaft. The movable seat is hinged to a first hinge frame. A second hinge frame is hinged to the first hinge frame. A second transmission wheel is rotatably mounted on the first hinge frame. The second transmission wheel and the first transmission wheel are connected together to a first transmission belt. A third transmission wheel is coaxially and fixedly connected to the second transmission wheel. The diameter of the third transmission wheel is larger than the diameter of the second transmission wheel. A second transmission shaft is rotatably connected to the second hinge frame. The second transmission shaft is coaxially and fixedly connected to a roller. A fourth transmission wheel is fixedly connected to the second transmission shaft. The fourth transmission wheel and the third transmission wheel are connected together to a second transmission belt. The diameter of the fourth transmission wheel is smaller than the diameter of the third transmission wheel. The first hinge frame is connected to a height adjustment assembly.

3. A self-cleaning solar photovoltaic panel according to claim 2, characterized in that, The height adjustment component includes two sets of active telescopic frames fixedly connected to the movable seat. The movable end of the active telescopic frame is fixedly connected to a frame. The two sets of frames are slidably connected to a set of synchronization frames. The synchronization frames are hinged to the first hinge frame.

4. A self-cleaning solar photovoltaic panel according to claim 1, characterized in that, The sliding support mechanism includes a guide rod fixedly connected to the bracket, a hollow sleeve slidably connected to the guide rod, an extension frame slidably connected to the hollow sleeve, a second rotation limit seat fixedly connected to the extension frame, the second rotation limit seat being rotatably connected to the roller, and the hollow sleeve being slidably connected to the bracket.

5. A self-cleaning solar photovoltaic panel according to claim 1, characterized in that, The water supply structure includes a water tank fixedly installed at the bottom of the bracket, a water pump fixedly installed at the lower end of the water tank, a water supply pipe fixedly connected to the water pump, a nozzle fixedly connected to the water supply pipe, the nozzle being positioned above the photovoltaic panel, and the nozzle being fixedly connected to the bracket.

6. A self-cleaning solar photovoltaic panel according to claim 1, characterized in that, The support frame is equipped with symmetrically distributed water-blocking edges.

7. A self-cleaning solar photovoltaic panel according to claim 1, characterized in that, The bracket is fixedly connected to two sets of bending frames, and the two sets of bending frames are jointly fixedly connected to a set of cameras.

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