Photovoltaic module with self-cleaning function

Abstract

The application discloses a photovoltaic module with a self-cleaning function, which comprises a photovoltaic panel, a support frame and a photovoltaic inverter, and further comprises a water collecting tank and a rotating disc, the inside of the rotating disc is provided with a worm, the end of the worm is connected with a rotating motor, the rotating disc comprises a rotatable top cover, the bottom center of the top cover is movably installed with a worm gear, the periphery of the worm gear is provided with a water collecting groove, the photovoltaic panel is provided with a guide plate, the bottom end of the guide plate is installed with a driving motor, the output end of the driving motor is installed with a moving block through a lead screw, the two sides of the moving block are provided with cleaning assemblies, and the cleaning assemblies are connected with the water collecting tank through a water pump. The device can be aligned with the sun all day, improves the photoelectric conversion efficiency, meanwhile, the photovoltaic panel is fixed firmly, and damage caused by strong wind is avoided; meanwhile, the surface of the photovoltaic panel is cleaned by the cleaning assemblies, and the photoelectric conversion efficiency of the photovoltaic panel is improved.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic energy technology, specifically to a photovoltaic module with a self-cleaning function. Background Technology

[0002] Photovoltaic power generation using solar energy is a way for photovoltaic systems to generate green energy. A photovoltaic system typically consists of the following three parts: photovoltaic panels; power electronic equipment such as charge and discharge controllers, inverters, test instruments and computer monitoring, and batteries or other energy storage and auxiliary power generation equipment.

[0003] Chinese patent CN116317898B, concerning a photovoltaic system and control device for moving photovoltaic panels, includes: a support assembly comprising two opposing horizontal supports; and photovoltaic panel assemblies, comprising at least two sets, wherein the photovoltaic panel assemblies are rotatably mounted between the two horizontal supports, and the photovoltaic panel assemblies are staggered in a stepped manner along the length of the horizontal supports when tilted. The photovoltaic panel assemblies mount photovoltaic panels on the support assembly, and the photovoltaic panels on the support assembly are adjustable. When the photovoltaic panels are horizontal, all photovoltaic panels are on the same horizontal plane. When the photovoltaic panels are rotated to a tilted state, a stepped misalignment occurs simultaneously in the height direction, increasing the distance between adjacent photovoltaic panels, reducing the overlap area of ​​adjacent photovoltaic panels in the direction of direct sunlight, increasing the light-receiving area of ​​the photovoltaic panels, and improving photovoltaic power generation efficiency.

[0004] The above technology has the following problems when implemented: 1. The photovoltaic panel can be rotatably installed on two brackets, and the photovoltaic panel can be flipped and the angle adjusted by the drive component. However, this structure results in a single fixing point between the photovoltaic panel and the bracket. Only the center part of the photovoltaic panel is connected to the bracket. When there is strong wind, the photovoltaic panel is impacted by the wind and the connection between the photovoltaic panel and the bracket is easily damaged; 2. After long-term use, a lot of dust will adhere to the surface of the photovoltaic panel, which will greatly reduce the photoelectric conversion efficiency of the photovoltaic panel. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a photovoltaic module with a self-cleaning function, which solves the problems that the connection between the photovoltaic panel and the support frame is easily damaged when the photovoltaic panel is subjected to strong winds; and that after long-term use, a large amount of dust will adhere to the surface of the photovoltaic panel, resulting in a significant reduction in the photovoltaic conversion efficiency.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a photovoltaic module with self-cleaning function, including a photovoltaic panel, a support frame and a photovoltaic inverter, wherein the photovoltaic panel is fixed to the support frame by clamp bolts, and further includes a water collection tank and a rotating disk, wherein a worm is horizontally installed inside the rotating disk, and a rotary motor is connected to the end of the worm. The rotating disk includes a rotatable top cover, and a worm wheel is movably installed at the bottom center of the top cover. The worm and the worm wheel are provided with interlocking helical teeth. The support frame is fixedly installed on the upper surface of the top cover. A water collection trough is coaxially arranged around the rotating disk, and the water collection trough is connected to the water collection tank. Two photovoltaic panels are installed on the same support frame. A guide plate is fixedly connected to the support frame between the two photovoltaic panels. A drive motor is fixedly installed at the bottom of the guide plate. The output end of the drive motor is connected to a lead screw that extends along the tilt angle of the photovoltaic panel. A moving block is threaded on the lead screw. Cleaning components that are in close contact with the surface of the photovoltaic panel are set on both sides of the moving block. The cleaning components are connected to a water collection tank through a water pump.

[0007] Preferably, the rotating disk also includes a chassis with a top opening. A mounting ring is provided on the top edge of the chassis. A ring-shaped groove is provided at the corresponding part of the mounting ring and the top cover. The groove is coaxial with the mounting ring. Several balls are movably arranged in the groove. A vertical support shaft is fixedly installed at the center of the worm gear. The top of the support shaft is fixedly connected to the top cover. The bottom of the support shaft is movably connected to the chassis through a bearing seat. A sealed bearing is provided at the position where the worm horizontally passes through the chassis.

[0008] Preferably, a fixing cylinder is fixedly connected to the upper surface of the top cover, and the support frame includes a vertical rod that is threadedly connected to the fixing cylinder. An inclined U-shaped guide rail is fixedly installed on the vertical rod by bolts. A horizontal U-shaped guide rail is installed on the U-shaped guide rail by bolts. The photovoltaic panel is fixed on the horizontal U-shaped guide rail by the cooperation of clamps and bolts, and the guide plate is fixed on the horizontal U-shaped guide rail.

[0009] Preferably, the guide plate is fixed to the support frame by bolts, and the guide plate extends along the tilt angle of the photovoltaic panel. The bottom end of the guide plate is provided with a mounting plate, and the drive motor is fixedly mounted on the mounting plate. The upper surface of the guide plate is provided with a guide groove along the length direction, and the bottom of the moving block is provided with a guide block that slides with the guide groove.

[0010] Preferably, the cleaning assembly includes a cleaning rod fixedly connected to both sides of the movable block. The cleaning rod is made of lightweight stainless steel. A cleaning cotton is provided at the bottom of the cleaning rod and is in close contact with the surface of the photovoltaic panel. A water supply pipe extending along the length of the cleaning rod is fixedly installed on the upper surface of the cleaning rod. A water distribution pipe penetrating the cleaning rod is provided at the bottom of the water supply pipe. The end of the water distribution pipe extends into the cleaning cotton. The input end of the water pump is connected to a water suction pipe extending into the bottom of the water collection tank. The output end of the water pump is connected to a water delivery pipe connected to the water supply pipe.

[0011] Preferably, the water collection trough is a three-quarters circular structure. The bottom of the water collection trough is connected to the water collection tank through several water pipes. The top of the water collection trough is open, and a frame-shaped collection net with a top opening is movably installed inside the opening. A filter screen is installed inside the collection net, and the top center of the filter screen is raised. A limiting member for fixing the filter screen is installed on the outside of the water collection trough by bolts. The top of the limiting member is bent and fits against the top of the filter screen. Filter cotton is installed below the collection net.

[0012] Preferably, a docking plate extending along the tilt of the photovoltaic panel is fixedly connected to the bottom of the photovoltaic panel.

[0013] Preferably, the edges of the photovoltaic panel and the docking plate are provided with raised guide edges, and the bottom center of the docking plate is provided with a water inlet, which corresponds to and cooperates with the water collection tank.

[0014] Preferably, a water injection pipe is installed on the top of the water collection tank.

[0015] This invention provides a photovoltaic module with a self-cleaning function, which has the following beneficial effects: 1. This invention drives the top cover of the rotating disk to rotate through the cooperation of worm gear and worm wheel, which in turn drives the support frame and photovoltaic panel to rotate, adjusting the orientation of the photovoltaic panel so that the photovoltaic panel can be aligned with the sun all day, improving the photoelectric conversion efficiency. At the same time, the photovoltaic panel is firmly fixed and will not be easily blown away and damaged by strong winds, greatly extending the service life of the photovoltaic panel. 2. This invention collects rainwater through a water collection trough and stores it in a water collection tank. At the same time, water is injected into the water collection tank through an external pipe. When the surface of the photovoltaic panel is covered with dust, the cleaning component moves along the surface of the photovoltaic panel through the cooperation of a drive motor, a lead screw, and a moving block. Meanwhile, a water pump transports water from the water collection tank to the cleaning component, improving the cleaning effect of the cleaning component, keeping the surface of the photovoltaic panel clean, and improving the photoelectric conversion efficiency of the photovoltaic panel. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the appearance of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 for Figure 2 A schematic diagram of the side view structure; Figure 4 This is a schematic diagram showing the distribution of the rotating disk and water collection tank of the present invention; Figure 5 This is a schematic diagram of the internal structure of the rotating disk of the present invention; Figure 6 This is a schematic diagram of the internal structure of the cleaning component of the present invention; Figure 7 This is a schematic diagram of the internal structure of the water collection tank of the present invention.

[0017] In the picture: 1. Rotary disc; 101. Chassis; 102. Top cover; 103. Mounting ring; 104. Ball bearing; 105. Groove; 2. Fixed cylinder; 3. Worm gear; 4. Worm wheel; 401. Support shaft; 402. Bearing housing; 5. Support frame; 6. Guide plate; 601. Guide groove; 602. Mounting plate; 7. Cleaning assembly; 701. Cleaning bar; 702. Water pipe; 703. Cleaning cotton; 704. Water distribution pipe; 8. Photovoltaic panel 9. Water collection tank; 901. Tank body; 902. Filter screen; 903. Collection screen; 904. Filter cotton; 905. Water pipe; 10. Water collection box; 11. Water pump; 12. Drive motor; 13. Pumping pipe; 14. Clamping block; 15. Moving block; 1501. Guide block; 16. Water injection pipe; 17. Lead screw; 18. Rotary motor; 19. Sealed bearing; 20. Guide edge; 21. Stop plate; 22. Water inlet. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1-7 This invention provides a technical solution: a photovoltaic module with self-cleaning function, including a photovoltaic panel 8, a support frame 5, and a photovoltaic inverter, as well as electrical components such as a controller. The specific structure and working principle are not detailed here. The photovoltaic panel 8 is bolted to the support frame 5 using clamping blocks 14. These clamping blocks 14 are dedicated pressure blocks for the photovoltaic panel 8, including edge pressure blocks and center pressure blocks, and are available in models such as JX-ZY015, JX-BY034-1B, and JX-ZY019 / BY019. They can fix the photovoltaic panel 8 on a U-shaped track. The photovoltaic panel 8 is fixed to the support frame 5 using four or more clamping blocks 14, thus ensuring the stability of the photovoltaic panel 8. To ensure greater stability and prevent it from being easily blown over by the wind, the system also includes a water collection tank 10 and a rotating disk 1. A worm gear 3 is horizontally installed inside the rotating disk 1. One end of the worm gear 3 is connected to a rotary motor 18, which is a geared motor. The other end is fixed to the inner wall of the rotating disk 1, which is furthest from the rotary motor 18, via a bearing seat 402. The rotating disk 1 includes a rotatable top cover 102. A worm wheel 4 is movably installed at the bottom center of the top cover 102. The worm gear 3 and the worm wheel 4 are provided with interlocking helical teeth. A support frame 5 is fixedly installed on the upper surface of the top cover 102. A water collection trough 9 is coaxially arranged around the rotating disk 1, and the water collection trough 9 is connected to the water collection tank 10. A support frame 5 is installed on a rotating disk 1. Two photovoltaic panels 8 are installed on the same support frame 5. A guide plate 6 is fixedly connected to the support frame 5 between the two photovoltaic panels 8. A drive motor 12 is fixedly installed at the bottom of the guide plate 6. The output end of the drive motor 12 is connected to a lead screw 17 that extends along the tilt angle of the photovoltaic panel 8. The two ends of the lead screw 17 are fixed by bearings so as not to affect the normal rotation of the lead screw 17. A moving block 15 is threaded on the lead screw 17. A cleaning component 7 is provided on both sides of the moving block 15, which is in close contact with the surface of the photovoltaic panel 8. The cleaning component 7 is connected to the water collection tank 10 through a water pump 11.

[0020] In this embodiment, the rotating disk 1 further includes a base 101 with a top opening. A mounting ring 103 is provided on the top edge of the base 101. An annular groove 105 is formed at the corresponding portion of the mounting ring 103 and the top cover 102, and the groove 105 is coaxial with the mounting ring 103. A plurality of balls 104 are movably disposed within the groove 105. By setting the balls 104, the weight borne by the support shaft 401 can be shared, while simultaneously keeping the edge of the top cover 102 balanced, preventing the top cover 102 from tilting during rotation. A vertical support shaft 401 is fixedly mounted at the center of the worm gear 4. The top of the photovoltaic panel 8 is fixedly connected to the top cover 102, and the bottom of the support shaft 401 is movably connected to the chassis 101 through the bearing seat 402. That is, the bearing seat 402 is fixedly connected to the chassis 101, and the support shaft 401 is rotatably connected to the bearing seat 402. A sealed bearing 19 is provided at the position where the worm 3 passes horizontally through the chassis 101. When it is necessary to rotate the photovoltaic panel 8, the rotary motor 18 drives the worm 3 to rotate. The helical teeth between the worm 3 and the worm wheel 4 are used to make the worm wheel 4 drive the support shaft 401 to rotate, which in turn drives the photovoltaic panel 8 to rotate through the top cover 102 and the support frame 5, so that the photovoltaic panel 8 can rotate with the sun.

[0021] In this embodiment, a fixed cylinder 2 is fixedly connected to the upper surface of the top cover 102, and the support frame 5 includes a vertical rod that is threadedly connected to the fixed cylinder 2. An inclined U-shaped guide rail is fixedly installed on the vertical rod by bolts, and a horizontal U-shaped guide rail is installed on the inclined U-shaped guide rail by bolts. The photovoltaic panel 8 is fixed on the horizontal U-shaped guide rail by the cooperation of the clamp 14 and bolts, and the guide plate 6 is fixed on the horizontal U-shaped guide rail.

[0022] In this embodiment, the guide plate 6 is fixed to the support frame 5 by bolts, and the guide plate 6 extends along the inclined angle of the photovoltaic panel 8. The bottom end of the guide plate 6 is provided with a mounting plate 602, and the drive motor 12 is fixedly mounted on the mounting plate 602. The drive motor 12 is a geared motor. The upper surface of the guide plate 6 is provided with a guide groove 601 along the length direction. The bottom of the moving block 15 is provided with a guide block 1501 that slides with the guide groove 601, and there is a gap between the guide block 1501 and the guide groove 601. The gap is sufficient for the moving block 15 to move smoothly along the guide plate 6. The specific dimensions of the gap are not detailed here. In actual use, the drive motor 12 is started, and the drive motor 12 drives the lead screw 17 to rotate. The threaded engagement between the lead screw 17 and the moving block 15 causes the moving block 15 to drive the cleaning component 7 to move along the surface of the photovoltaic panel 8.

[0023] In this embodiment, the cleaning assembly 7 includes a cleaning rod 701 fixedly connected to both sides of the movable block 15. The cleaning rod 701 is made of lightweight stainless steel. A cleaning cotton 703 is provided at the bottom of the cleaning rod 701, which is in close contact with the surface of the photovoltaic panel 8. A water supply pipe 702 extending along the length of the cleaning rod 701 is fixedly installed on the upper surface of the cleaning rod 701. A water distribution pipe 704 penetrating the cleaning rod 701 is provided at the bottom of the water supply pipe 702. The end of the water distribution pipe 704 extends into the cleaning cotton 703. The input end of the water pump 11 is connected to a water distribution pipe extending into the cleaning cotton 703. The bottom of the water collection tank 10 has a water pump pipe 13, and the output end of the water pump 11 is connected to a water delivery pipe 702. The length of the water delivery pipe is long enough not to affect the normal rotation of the photovoltaic panel 8. With this configuration, the water pump 11 can deliver water from the water collection tank 10 to the cleaning cotton 703 and wet the cleaning cotton 703. When the cleaning cotton 703 moves along the surface of the photovoltaic panel 8, the wet cleaning cotton 703 can easily wipe the dust off the surface of the photovoltaic panel 8, thereby improving the photoelectric conversion efficiency of the photovoltaic panel 8.

[0024] In this embodiment, the water collection trough 9 is a three-quarters circular structure, and the center of the water collection trough 9 is coaxial with the center of the support frame 5. This arrangement ensures that when the photovoltaic panel 8 rotates with the sun, the lowest point of the photovoltaic panel 8 always corresponds to the water collection trough 9, allowing rainwater on the photovoltaic panel 8 to flow smoothly into the water collection trough 9. The water collection trough 9 is designed as a three-quarters circular structure because the sun rises in the east and sets in the west, and the rotation angle of the photovoltaic panel 8 also changes from east to west. The three-quarters circular water collection trough 9 is sufficient to cover the movement trajectory of the lowest point of the photovoltaic panel 8 (i.e., the water inlet 22). The bottom of the water collection trough 9 is connected to the water collection tank 10 through several water pipes 905, allowing rainwater in the water collection trough 9 to flow smoothly into the water collection tank 10. The top of the water collection trough 9 is open, and a frame with a movable top opening is installed inside the opening. The collection net 903 is designed to collect waste that has entered the filter screen 902. The filter screen 902 is installed inside the collection net 903, and the top center of the filter screen 902 is raised. This design allows waste to roll down the inclined surface of the filter screen 902, preventing it from clogging. A limiting member for fixing the filter screen 902 is installed on the outside of the water collection tank 9 by bolts. The top of the limiting member is bent and fits against the top of the filter screen 902. The limiting member can fix the filter screen 902. Filter cotton 904 is installed below the collection net 903. This design allows rainwater to be filtered by the filter screen 902, then by the collection net 903, and finally by the filter cotton 904 before flowing into the water collection tank 10, preventing waste from entering and clogging the water collection tank 10.

[0025] In this embodiment, a stop plate 21 extending along the tilt of the photovoltaic panel 8 is fixedly connected to the bottom of the photovoltaic panel 8. By setting the stop plate 21, the cleaning component 7 can be stopped on the stop plate 21 when not in use, thus avoiding damage to the photovoltaic panel 8 caused by the long-term blocking of the photovoltaic panel 8 by the cleaning component 7.

[0026] In this embodiment, the photovoltaic panel 8 and the docking plate 21 are provided with raised guide edges 20, and the bottom center of the docking plate 21 is provided with a water inlet 22. The water inlet 22 is correspondingly matched with the water collection tank 9. With this arrangement, the rainwater flowing onto the photovoltaic panel 8 during rain can flow into the water collection tank 9 under the guidance of the guide edges 20 and the water inlet 22, thus completing the collection of rainwater.

[0027] In this embodiment, the water collection tank 10 is pre-buried underground, and a water injection pipe 16 is provided on the top of the water collection tank 10. As a preferred embodiment, multiple water level detection devices are provided in the water collection tank 10 to detect the water level in the water collection tank 10 at all times. At the same time, the water injection pipe 16 is connected to an external water supply pipe. When the water level in the water collection tank 10 is too low, water will be injected into the water collection tank 10 through the external water supply pipe to meet the daily cleaning needs.

[0028] As a preferred embodiment, the rotary motor 18 can be a unidirectional motor or a bidirectional motor. The number of rotary disks 1 driven by one rotary motor 18 is selected according to the actual power size, such as driving 2-4 rotary disks 1. Each rotary disk 1 has two photovoltaic panels 8. The base 101 of the rotary disk 1 can be fixed to the bottom surface by long bolts or by pouring concrete at the bottom of the base 101. Since the turbine and worm gear 3 drive the top cover 102 of the rotary disk 1 to rotate, the rotation of the photovoltaic panels 8 is not affected even if the base 101 of the rotary disk 1 is fixed.

[0029] In practical use, the photovoltaic panel 8 faces east towards the sun in the morning. The rotation motor 18 is started periodically via a motor controller or manual operation (using a motor controller with a timer function, where start and stop times are set via a panel or app; its specific structure and working principle are common technologies and will not be detailed here). This causes the worm gear 3 to rotate, and the top cover 102 of the rotating disk 1 rotates through the cooperation between the worm gear 3 and the turbine. The top cover 102 then rotates the photovoltaic panel 8 at a certain angle via the support frame 5. In this way, the photovoltaic panel 8 follows the sun from east to west throughout the day. When it reaches the western direction, the sun has disappeared, and the rotation motor 18 is started in reverse to reset the photovoltaic panel 8 to the eastern direction. This ensures that the photovoltaic panel 8 faces the sun when it rises the next day and also prevents the water supply pipe between the water pump 11 and the water pipe 702 from getting tangled in the support frame 5, thus preventing the water supply pipe from breaking. When it rains, rainwater falls onto the surface of the photovoltaic panel 8 and flows into the water collection tank 9 under the guidance of the guide edge 20 and the water inlet 22. After passing through multiple layers of filtration, the rainwater flows into the water collection tank 10 for storage. Every once in a while, when the surface of the photovoltaic panel 8 is covered with dust, the drive motor 12 is started by the motor controller or manually. The drive motor 12 rotates, which drives the lead screw 17 to rotate. The lead screw 17 moves the moving block 15 through the threaded engagement with the moving block 15. In turn, the moving block 15 drives the cleaning component 7 to move along the surface of the photovoltaic panel 8. At the same time, the water pump 11 is started. The water pump 11 sends water from the water collection tank 10 to the cleaning component 7 through the water pipe 13 to wet the cleaning cotton 703. The wet cleaning cotton 703 is used to remove the dust from the surface of the photovoltaic panel 8 while avoiding scratching the surface of the photovoltaic panel 8. After cleaning, the cleaning component is reset on the docking plate 21 to avoid blocking the surface of the photovoltaic panel 8.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic module with self-cleaning function, comprising a photovoltaic panel (8), a support frame (5), and a photovoltaic inverter, wherein the photovoltaic panel (8) is fixed to the support frame (5) by bolts via clamps (14), characterized in that: It also includes a water collection tank (10) and a rotating disk (1). A worm gear (3) is horizontally installed inside the rotating disk (1). A rotary motor (18) is connected to the end of the worm gear (3). The rotating disk (1) includes a rotatable top cover (102). A worm wheel (4) is movably installed at the bottom center of the top cover (102). The worm gear (3) and the worm wheel (4) are provided with interlocking helical teeth. A support frame (5) is fixedly installed on the upper surface of the top cover (102). A water collection trough (9) is coaxially arranged around the rotating disk (1), and the water collection trough (9) is connected to the water collection tank (10). Two photovoltaic panels (8) are installed on the same support frame (5). A guide plate (6) is fixedly connected to the support frame (5) between the two photovoltaic panels (8). A drive motor (12) is fixedly installed at the bottom of the guide plate (6). A lead screw (17) extending along the tilt angle of the photovoltaic panel (8) is connected to the output end of the drive motor (12). A moving block (15) is threaded on the lead screw (17). A cleaning component (7) is provided on both sides of the moving block (15) and is close to the surface of the photovoltaic panel (8). The cleaning component (7) is connected to the water collection tank (10) through a water pump (11).

2. A photovoltaic module with self-cleaning function according to claim 1, characterized in that: The rotating disk (1) also includes a chassis (101) with a top opening. A mounting ring (103) is provided on the top edge of the chassis (101). A ring-shaped groove (105) is provided on the corresponding part of the mounting ring (103) and the top cover (102). The groove (105) and the mounting ring (103) are coaxial. Several balls (104) are movably arranged in the groove (105). A vertical support shaft (401) is fixedly installed at the center of the worm gear (4). The top of the support shaft (401) is fixedly connected to the top cover (102). The bottom of the support shaft (401) is movably connected to the chassis (101) through the bearing seat (402). A sealed bearing (19) is provided at the position where the worm (3) horizontally passes through the chassis (101).

3. A photovoltaic module with self-cleaning function according to claim 1, characterized in that: The top cover (102) is fixedly connected to the upper surface of the fixed cylinder (2). The support frame (5) includes a vertical rod that is threadedly connected to the fixed cylinder (2). An inclined U-shaped guide rail is fixedly installed on the vertical rod by bolts. A horizontal U-shaped guide rail is installed on the U-shaped guide rail by bolts. The photovoltaic panel (8) is fixed on the horizontal U-shaped guide rail by the cooperation of the clamp (14) and bolts. The guide plate (6) is fixed on the horizontal U-shaped guide rail.

4. A photovoltaic module with self-cleaning function according to claim 1, characterized in that: The guide plate (6) is fixed to the support frame (5) by bolts, and the guide plate (6) extends along the tilt angle of the photovoltaic panel (8). The bottom end of the guide plate (6) is provided with a mounting plate (602), and the drive motor (12) is fixedly installed on the mounting plate (602). The upper surface of the guide plate (6) is provided with a guide groove (601) along the length direction, and the bottom of the moving block (15) is provided with a guide block (1501) that slides with the guide groove (601).

5. A photovoltaic module with self-cleaning function according to claim 1, characterized in that: The cleaning assembly (7) includes a cleaning rod (701) fixedly connected to both sides of the movable block (15). The cleaning rod (701) is made of lightweight stainless steel. A cleaning cotton (703) is provided at the bottom of the cleaning rod (701) and is in close contact with the surface of the photovoltaic panel (8). A water supply pipe (702) extending along the length of the cleaning rod (701) is fixedly installed on the upper surface of the cleaning rod (701). A water distribution pipe (704) penetrating the cleaning rod (701) is provided at the bottom of the water supply pipe (702). The end of the water distribution pipe (704) extends into the cleaning cotton (703). The input end of the water pump (11) is connected to a water suction pipe (13) extending into the bottom of the water collection tank (10). The output end of the water pump (11) is connected to a water delivery pipe connected to the water supply pipe (702).

6. A photovoltaic module with self-cleaning function according to claim 1, characterized in that: The water collection trough (9) is a three-quarters circular structure. The bottom of the water collection trough (9) is connected to the water collection tank (10) through several water pipes (905). The top of the water collection trough (9) is open, and a frame-shaped collection net (903) with a top opening is movably installed inside the opening. A filter net (902) is installed inside the collection net (903), and the top center of the filter net (902) is raised. A limiting member for fixing the filter net (902) is installed on the outside of the water collection trough (9) by bolts. The top of the limiting member is bent and fits against the top of the filter net (902). Filter cotton (904) is installed below the collection net (903).

7. A photovoltaic module with self-cleaning function according to claim 1, characterized in that: A stop plate (21) extending along the tilt of the photovoltaic panel (8) is fixedly connected to the bottom of the photovoltaic panel (8).

8. A photovoltaic module with self-cleaning function according to claim 7, characterized in that: The photovoltaic panel (8) and the docking plate (21) are provided with raised guide edges (20), and the bottom center of the docking plate (21) is provided with a water inlet (22), which corresponds to the water collection tank (9).

9. A photovoltaic module with self-cleaning function according to claim 1, characterized in that: A water injection pipe (16) is installed on the top of the water collection tank (10).

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