A distributed photovoltaic system with self-cleaning function

Abstract

The present invention discloses a distributed photovoltaic system with a self-cleaning function, which relates to the technical field of photovoltaic equipment, including a house, a photovoltaic panel is arranged on the top of the house, a fixed frame is arranged on the outside of the photovoltaic panel, a water tank is arranged on one side of the house, a sewage channel is fixed to the side wall of the house and arranged above the water tank, an electric cover is arranged on the top of the sewage channel, a drain is embedded near the center of the sewage channel, a first filter plate is arranged on the side wall of the drain, a drain pipe is arranged below the sewage channel and connected to the drain, an air outlet component is arranged below the sewage channel and fixed to the side wall of the house, a pumping component is arranged at one end of the house, a cleaning device is arranged on the side wall of the fixed frame, and the cleaning device includes a moving component arranged on the side wall of the fixed frame. The present invention can better clean the photovoltaic panel in the rainy season and the snowy season through the components arranged.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of photovoltaic equipment technology, and specifically to a distributed photovoltaic system with a self-cleaning function. Background Art

[0002] Photovoltaic panels are devices that use solar energy to generate electricity, providing electricity for human life by converting light energy into electrical energy. Photovoltaic panels are mainly made of semiconductor materials, common materials include monocrystalline silicon and polycrystalline silicon. When these materials are exposed to sunlight, they can stimulate the flow of electrons, thereby generating electric current. The output power of photovoltaic panels is affected by many factors, including the intensity, angle and spectrum of sunlight. In order to increase the output power, anti-reflective coatings, coatings and other technologies can be used in the manufacturing process to improve the light absorption capacity.

[0003] According to the photovoltaic panel cleaning device provided in the patent document with application number CN201810603484.7, the device includes a base plate, a cleaning box is fixed to the top outer wall of the base plate by bolts, and a display screen is fixed to the top outer wall of the cleaning box by bolts, an installation box is fixed to the top outer wall of the base plate by bolts, and a partition is welded in the middle of the installation box, a processor is fixed to the upper layer of the partition by bolts, a storage battery is fixed to the bottom inner wall of the installation box by bolts, and a blower and a heater are fixed to the top outer wall of the installation box by bolts.

[0004] The product in the above patent can complete efficient cleaning, the electric telescopic rod can adjust the cleaning height, which can be adjusted according to the actual situation to meet the needs of actual work, and can clean the photovoltaic panels in all directions, which is convenient and flexible, and can dry the cleaned photovoltaic panels for future use. Distributed photovoltaic panels are generally installed on the roof, and in winter, the snow on the photovoltaic panels makes the photovoltaic panels unable to work. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a distributed photovoltaic system with a self-cleaning function to solve the technical problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a distributed photovoltaic system with a self-cleaning function, comprising a house, a photovoltaic panel is arranged on the top of the house, a fixed frame is arranged on the outside of the photovoltaic panel, a water tank is arranged on one side of the house, a sewage channel is fixed to the side wall of the house and arranged above the water tank, an electric cover is arranged on the top of the sewage channel, a drain is embedded near the center of the sewage channel, a first filter plate is arranged on the side wall of the drain, a drain pipe is arranged below the sewage channel and connected to the drain, an air outlet component is arranged below the sewage channel and fixed to the side wall of the house, a pumping component is arranged at one end of the house, and a cleaning device is arranged on the side wall of the fixed frame;

[0007] The cleaning device includes a moving component arranged on the side wall of the fixed frame, a moving plate is arranged at the execution end of the moving component, a plurality of nozzles are arranged on the side wall of the moving plate, a drying component is arranged on the top of the moving plate, and a detection component is arranged on the top of the moving plate.

[0008] Preferably, a water inlet is embedded in the top of the water tank, a first solenoid valve is provided on the side wall of the water inlet, a water pumping trough is embedded in the side wall of the water tank, a second filter plate is provided on the side wall of the water pumping trough, an outlet is away from the water pumping trough and embedded in the side wall of the water tank, a second solenoid valve is provided on the side wall of the outlet, one end of the sewer pipe is connected to the water inlet, the first solenoid valve and the second solenoid valve are electrically connected to the PLC controller, and in this preferred embodiment, the components in the water tank can simply filter the water flowing into the water tank to prevent damage to the surface of the photovoltaic panel when the photovoltaic panel is cleaned.

[0009] Preferably, the air outlet component includes an air pump disposed below the sewage channel and fixed to the side wall of the house, an air supply pipe is disposed at the output end of the air pump, one end of the air supply pipe is connected to the sewer pipe, and the air pump is electrically connected to a PLC controller. In this preferred embodiment, the air pump can spray air from the sewer outlet to blow away debris accumulated at the sewer outlet, thereby preventing water from failing to quickly enter the sewer pipe and causing blockage of the sewage channel.

[0010] Preferably, the pumping component includes a water pump arranged at one end of the house, the water delivery ends of the water pump are respectively connected to water pipe one and water pipe two, one end of water pipe one is connected to the movable plate, one end of water pipe two is connected to the pumping trough, the other water delivery end of the water pump is connected to an external water source, and the water pump is electrically connected to a PLC controller. In this preferred embodiment, the water pump can pump water forward and backward and be connected to a water source. When the water tank is dry, water can be pumped from the water source to clean the photovoltaic panels.

[0011] Preferably, the movable component includes two slide grooves symmetrically arranged on the side walls of the fixed frame with the center of the fixed frame as the axis, the two slide grooves are electrically connected to a connecting block, and the side walls of the connecting block are connected to the movable plate. In this preferred embodiment, the movable component can drive the movable plate to move on the fixed frame.

[0012] Preferably, the drying component includes two electric telescopic rods which are symmetrically arranged on the top of the moving plate with the center of the moving plate as the axis, the execution ends of the two electric telescopic rods are provided with lifting plates, the bottom of the lifting plates are provided with absorbent cotton, and the two electric telescopic rods are electrically connected to the PLC controller. In this preferred embodiment, the drying component can absorb water stains on the surface of the photovoltaic panel to prevent water spots from being left on the photovoltaic panel, which would cause the working effect of the photovoltaic panel to deteriorate.

[0013] Preferably, a heating module is provided at the contact surface between the bottom of the movable plate and the photovoltaic panel. In this preferred embodiment, the heating module can quickly melt snow in winter and can simply preheat the surface of the photovoltaic panel to improve the working efficiency of the photovoltaic panel in winter.

[0014] Preferably, the inner bottom wall of the sewage channel is sloped toward the drain outlet. In this preferred embodiment, the inner bottom wall of the sewage channel is sloped to concentrate the water flow at the drain outlet, so that no water can quickly flow from the sewer pipe into the water tank.

[0015] Preferably, the detection component includes a detector arranged on the top of the movable plate, and the detector is electrically connected to the PLC controller. In this preferred embodiment, the detector can detect the weather, and will stop working if it rains or snows, and will immediately clean the photovoltaic panels when the weather clears up.

[0016] Preferably, the bottom of the water tank is sloped toward the discharge port. In this preferred embodiment, the bottom of the water tank is sloped, which can concentrate the stains at the discharge port and prevent too much stains from concentrating in the drain trough. When the water tank needs to be flushed, the stains can be quickly flushed out of the water tank.

[0017] In summary, the present invention mainly has the following beneficial effects:

[0018] The components in the water tank can simply filter the water flowing into the water tank to prevent damage to the surface of the photovoltaic panel when cleaning the photovoltaic panel. The vacuum pump can spray air from the drain to blow away the debris accumulated in the drain to prevent the water from failing to quickly enter the sewer pipe and causing blockage in the sewage channel. The water pump can pump water in both directions and connect to the water source. When the water tank is dry, it can pump water from the water source to clean the photovoltaic panel. The moving components can drive the moving panel to move on the fixed frame. The drying components can absorb water stains on the surface of the photovoltaic panel to prevent water spots from being left on the photovoltaic panel, resulting in photovoltaic The working effect of the panel deteriorates. The heating module can quickly melt the snow in winter and can simply preheat the surface of the photovoltaic panel to improve the working efficiency of the photovoltaic panel in winter. The bottom wall of the sewage channel is sloped to concentrate the water flow at the drain outlet, so that no water can quickly flow into the water tank from the sewer pipe. The detector can detect the weather. If it rains or snows, it will stop working. When the weather turns clear, the photovoltaic panel will be cleaned immediately. The bottom of the water tank is sloped, which can concentrate the stains at the discharge port and prevent too much stains from concentrating in the water trough. When the water tank needs to be flushed, the stains can be quickly flushed out of the water tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an axial view of the present invention;

[0020] Figure 2 It is an axial view of the sewage channel of the present invention;

[0021] Figure 3 It is a schematic diagram of the enlarged structure of point A of the present invention;

[0022] Figure 4 An exploded view of the present invention;

[0023] Figure 5 It is an exploded view of the fixed frame of the present invention;

[0024] Figure 6 It is an exploded view of the drying component of the present invention;

[0025] Figure 7 is a cross-sectional view of a movable plate of the present invention;

[0026] Figure 8 It is a cross-sectional view of a water tank of the present invention.

[0027] Description of the drawings: 10. House; 11. Photovoltaic panel; 12. Fixed frame; 13. Water tank; 131. Water inlet; 132. First solenoid valve; 133. Water pumping trough; 134. Second filter plate; 135. Discharge port; 136. Second solenoid valve; 14. Sewage channel; 141. Electric cover plate; 15. Drain port; 16. First filter plate; 17. Drain pipe; 18. Air outlet component; 181. Air pump; 182. Air supply pipe; 19. Water pumping component; 191. Water pump; 192. Water pipe one; 193. Water pipe two; 20. Cleaning device; 21. Moving component; 211. Slide; 212. Connecting block; 22. Moving plate; 23. Sprinkler; 24. Drying component; 241. Electric telescopic rod; 242. Lifting plate; 25. Detection component; 251. Detector. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] The following describes an embodiment of the present invention based on its overall structure. Example

[0030] Please refer to the attached Figure 1 , 2 As shown in Figures 3, 4, 6, and 8, in a preferred embodiment of the present invention, a distributed photovoltaic system with a self-cleaning function includes a house 10, a photovoltaic panel 11 is provided on the top of the house 10, a fixed frame 12 is provided on the outside of the photovoltaic panel 11, a water tank 13 is provided on one side of the house 10, a sewage channel 14 is fixed to the side wall of the house 10 and is provided above the water tank 13, an electric cover 141 is provided on the top of the sewage channel 14, a drain port 15 is embedded near the center of the sewage channel 14, a water inlet 131 is embedded on the top of the water tank 13, and the water inlet 131 is provided at the bottom of the water tank 13. A first solenoid valve 132 is provided on the side wall, a water pumping trough 133 is embedded in the side wall of the water tank 13, a second filter plate 134 is provided on the side wall of the water pumping trough 133, a discharge port 135 is away from the water pumping trough 133 and embedded in the side wall of the water tank 13, a second solenoid valve 136 is provided on the side wall of the discharge port 135, one end of the sewer pipe 17 is connected to the water inlet 131, the first solenoid valve 132 and the second solenoid valve 136 are electrically connected to the PLC controller, the inner bottom wall of the sewage channel 14 is sloped toward the sewer port 15, and the bottom of the water tank 13 is sloped toward the discharge port 135.

[0031] It should be noted that, in this embodiment, when the weather is sunny, the device does not work. When it is raining, rainwater will enter the sewer port 15 from the sewage channel 14, then enter the sewer pipe 17 from the sewer port 15 and finally enter the water tank 13. The first filter plate 16 filters the large particles in the rainwater until the rain stops and the sky clears up.

[0032] Please refer to the attached Figure 3 , 4 As shown in FIG. 5 , in a preferred embodiment of the present invention, a first filter plate 16 is provided on the side wall of the drain port 15, a drain pipe 17 is provided below the sewage channel 14 and connected to the drain port 15, an air outlet component 18 is provided below the sewage channel 14 and fixed to the side wall of the house 10, a water pumping component 19 is provided at one end of the house 10, a cleaning device 20 is provided on the side wall of the fixed frame 12, the air outlet component 18 includes an air pump 181 provided below the sewage channel 14 and fixed to the side wall of the house 10, and the air pump 181 An air delivery duct 182 is provided at the output end, one end of the air delivery duct 182 is connected to the sewer pipe 17, the air pump 181 is electrically connected to the PLC controller, the pumping component 19 includes a water pump 191 arranged at one end of the house 10, the water delivery ends of the water pump 191 are respectively connected to water pipe 192 and water pipe 2 193, one end of water pipe 192 is connected to the movable plate 22, one end of water pipe 2 193 is connected to the pumping trough 133, the other water delivery end of the water pump 191 is connected to an external water source, and the water pump 191 is electrically connected to the PLC controller.

[0033] It should be noted that, in the present embodiment, the connecting block 212 is driven by the motor to move in the slide groove 211, and the connecting block 212 drives the movable plate 22 to move on the fixed frame 12. At this time, the water pump 191 is started, and the water pump 191 draws the water in the water tank 13 from the water pumping groove 133 into the water pipe 2 193. The water in the water tank 13 is filtered again through the second filter plate 134, and then drawn from the water pipe 2 193 into the water pipe 1 192, and then enters the movable plate 22 and is sprayed out from the nozzle 23 to wash the impurities on the photovoltaic panel 11.

[0034] Please refer to the attached Figure 1 , 5As shown in FIGS. 6 and 7 , in a preferred embodiment of the present invention, the cleaning device 20 includes a moving component 21 disposed on the side wall of the fixed frame 12, a moving plate 22 is disposed at the execution end of the moving component 21, a plurality of nozzles 23 are disposed on the side wall of the moving plate 22, a drying component 24 is disposed on the top of the moving plate 22, a detection component 25 is disposed on the top of the moving plate 22, the moving component 21 includes two slide grooves 211 symmetrically disposed on the side wall of the fixed frame 12 with the center of the fixed frame 12 as an axis, the two slide grooves 211 are electrically connected to a connecting block 212, and the connecting block 21 2 is connected to the moving plate 22, the drying component 24 includes two electric telescopic rods 241 symmetrically arranged on the top of the moving plate 22 with the center of the moving plate 22 as the axis, the execution ends of the two electric telescopic rods 241 are provided with a lifting plate 242, the bottom of the lifting plate 242 is provided with absorbent cotton, the two electric telescopic rods 241 are electrically connected to the PLC controller, the bottom of the moving plate 22 and the contact surface of the photovoltaic panel 11 are provided with a heating module, and the detection component 25 includes a detector 251 arranged on the top of the moving plate 22, and the detector 251 is electrically connected to the PLC controller.

[0035] It should be noted that, in the present embodiment, while the movable plate 22 is moving, the electric telescopic rod 241 is started, and the electric telescopic rod 241 drives the lifting plate 242 to move up and down, so that the water-absorbing cotton at the bottom of the lifting plate 242 contacts the surface of the photovoltaic panel 11. When the movable plate 22 moves, the water on the surface of the photovoltaic panel 11 is absorbed, and the flushing water will flow back into the water tank 13 from the sewage channel 14, and the water in the water tank 13 will be recycled. After flushing, the movable plate 22 returns to its original position, and the electric telescopic rod 241 continues to move downward to squeeze out the water in the washing cotton, and then returns to its original position, so that the washing cotton is naturally dried. When it snows, the electric cover 141 is driven by the motor to cover the sewage channel 14 to prevent snow from entering the sewage channel 14. At this time, the equipment does not work. When the sky clears after the snow, the heating module at the bottom of the movable plate 22 is started first to raise the temperature to about 28 degrees, and then the movable plate 22 is moved slowly to melt the snow on the photovoltaic panel 11 into water. After the snow on the photovoltaic panel 11 is cleared, the movable plate 22 is restored to its original position, and then the water pump 191 is started to pump the water in the water tank 13 into the movable plate 22 and spray it out from the nozzle 23, and then the movable plate is driven by the motor. 22 moves on the fixed frame 12, rinses the surface of the photovoltaic panel 11 with water, and then returns to its original position. At this time, the electric cover 141 is driven by the motor to open, and then the surface of the photovoltaic panel 11 is continued to be rinsed. At this time, the electric telescopic rod 241 is started to drive the absorbent cotton to absorb water from the surface of the photovoltaic panel 11. After the rinsing is completed, all are restored to their original positions. At this time, the photovoltaic panel 11 works. If the electric cover 141 is closed, when there are too many impurities on the first filter plate 16, the first solenoid valve 132 is started to close the sewer pipe 17, and then the air pump 181 is started to draw the air supply pipe 182 into the sewer pipe 1 7, and then output from the drain port 15 to blow away the impurities on the first filter plate 16 to prevent the drain port 15 from being blocked. After the processing is completed, the first solenoid valve 132 is opened, and the water tank 13 will be cleaned regularly. When cleaning is required, the second solenoid valve 136 is opened, the water pump 191 is started, and the water source water is extracted, and then output from the water pipe 193, and the water is pumped into the water tank 13 from the water pumping trough 133 to simply rinse the bottom of the water tank 13. Because the bottom of the water tank 13 is sloped, the impurities are basically gathered near the discharge port 135, and then the impurities are flushed out from the discharge port 135. At this time, the equipment is completed.

[0036] The working principle of the present invention is:

[0037] The electrical components in the present invention are all triggered to operate by a PLC controller.

[0038] When the weather is sunny, the equipment does not work. When it is raining, rainwater will enter the sewer port 15 from the sewage channel 14, then enter the sewer pipe 17 from the sewer port 15 and finally enter the water tank 13. The first filter plate 16 filters the large particles in the rainwater. After the rain stops and the sky clears up, the motor drives the connecting block 212 to move in the slide 211, and the connecting block 212 drives the moving plate 22 to move on the fixed frame 12. At this time, the pump 191 is started, and the pump 191 draws the water in the water tank 13 from the pumping trough 133 into the water pipe 2 193. The water in the water tank 13 is filtered again through the second filter plate 134, and then is drawn from the water pipe 2 193 into the water pipe 1 192, and then enters the moving plate 22 and is sprayed from the nozzle 23 to the photovoltaic panel 1. 1, while the moving plate 22 moves, the electric telescopic rod 241 is started, and the electric telescopic rod 241 drives the lifting plate 242 to move up and down, so that the absorbent cotton at the bottom of the lifting plate 242 contacts the surface of the photovoltaic panel 11, and when the moving plate 22 moves, the water on the surface of the photovoltaic panel 11 is absorbed, and the flushing water will flow back into the water tank 13 from the sewage channel 14, and the water in the water tank 13 will be recycled. After flushing, the moving plate 22 returns to its original position, and the electric telescopic rod 241 continues to move downward to squeeze out the water in the washing cotton, and then returns to its original position to allow the washing cotton to dry naturally. When it snows, the electric cover 141 is driven by the motor to cover the sewage channel 14 to prevent snow from entering the sewage channel 14. At this time, the equipment does not work, and wait until the snow When the day after tomorrow is clear, first start the heating module at the bottom of the movable plate 22 to raise the temperature to about 28 degrees, then stay still to melt the snow in place first, then slowly move the movable plate 22 to slowly melt the snow on the photovoltaic panel 11 into water. After the snow on the photovoltaic panel 11 is cleaned, the movable plate 22 returns to its original position, and then starts the water pump 191 to pump the water in the water tank 13 into the interior of the movable plate 22 and spray it out from the nozzle 23, and then drives the movable plate 22 to move on the fixed frame 12 through the motor, rinses the surface of the photovoltaic panel 11 with water, and then returns to its original position. At this time, the electric cover 141 is driven by the motor to open, and then the surface of the photovoltaic panel 11 is continued to be rinsed, and the electric telescopic rod 241 is started to drive the absorbent cotton to rinse the surface of the photovoltaic panel 11 After rinsing, all are restored to their original positions. At this time, the photovoltaic panel 11 is working. If the electric cover 141 is closed, when there are too many impurities on the first filter plate 16, the first solenoid valve 132 is started to close the sewer pipe 17, and then the suction pump 181 is started to draw the air duct 182 into the sewer pipe 17, and then output from the sewer port 15 to blow away the impurities on the first filter plate 16 to prevent the sewer port 15 from being blocked. After the processing is completed, the first solenoid valve 132 is opened, and the water tank 13 is cleaned regularly. When cleaning is required, the second solenoid valve 136 is opened, and the water pump 191 is started to draw water from the water source, and then output from the water pipe 193, and water is pumped into the water tank 13 from the water pumping tank 133 to simply rinse the bottom of the water tank 13.Because the bottom of the water tank 13 is sloped, impurities will basically gather near the discharge port 135, and then the impurities will be flushed out from the discharge port 135, and the equipment is now finished.

[0039] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A distributed photovoltaic system with a self-cleaning function, comprising a house (10), characterized in that: A photovoltaic panel (11) is provided on the top of the house (10), a fixed frame (12) is provided on the outside of the photovoltaic panel (11), a water tank (13) is provided on one side of the house (10), a sewage channel (14) is fixed to the side wall of the house (10) and arranged above the water tank (13), an electric cover (141) is provided on the top of the sewage channel (14), a water outlet (15) is embedded near the center of the sewage channel (14), a first filter plate (16) is provided on the side wall of the water outlet (15), a water pipe (17) is provided below the sewage channel (14) and connected to the water outlet (15), an air outlet component (18) is provided below the sewage channel (14) and fixed to the side wall of the house (10), a water pumping component (19) is provided at one end of the house (10), and a cleaning device (20) is provided on the side wall of the fixed frame (12); The cleaning device (20) comprises a moving component (21) arranged on the side wall of the fixed frame (12), a moving plate (22) is arranged at the execution end of the moving component (21), a plurality of nozzles (23) are arranged on the side wall of the moving plate (22), a drying component (24) is arranged on the top of the moving plate (22), and a detection component (25) is arranged on the top of the moving plate (22); A water inlet (131) is embedded in the top of the water tank (13), a first solenoid valve (132) is provided on the side wall of the water inlet (131), a water pumping trough (133) is embedded in the side wall of the water tank (13), a second filter plate (134) is provided on the side wall of the water pumping trough (133), a discharge port (135) is away from the water pumping trough (133) and embedded in the side wall of the water tank (13), a second solenoid valve (136) is provided on the side wall of the discharge port (135), one end of the sewer pipe (17) is connected to the water inlet (131), and the first solenoid valve (132) and the second solenoid valve (136) are electrically connected to a PLC controller; The water pumping component (19) comprises a water pump (191) arranged at one end of the house (10); the water delivery end of the water pump (191) is respectively connected to a water pipe 1 (192) and a water pipe 2 (193); one end of the water pipe 1 (192) is connected to the movable plate (22); one end of the water pipe 2 (193) is connected to the water pumping trough (133); the other water delivery end of the water pump (191) is connected to an external water source; and the water pump (191) is electrically connected to a PLC controller; The bottom of the water tank (13) is sloped toward the discharge port (135).

2. A distributed photovoltaic system with self-cleaning function according to claim 1, characterized in that: The air outlet component (18) comprises an air pump (181) disposed below the sewage channel (14) and fixed to the side wall of the house (10); an air supply pipe (182) is disposed at the output end of the air pump (181); one end of the air supply pipe (182) is connected to the sewer pipe (17); and the air pump (181) is electrically connected to a PLC controller.

3. A distributed photovoltaic system with self-cleaning function according to claim 1, characterized in that: The moving component (21) comprises two slide grooves (211) symmetrically arranged on the side wall of the fixed frame (12) with the center of the fixed frame (12) as an axis, the two slide grooves (211) are electrically connected to a connecting block (212), and the side wall of the connecting block (212) is connected to the moving plate (22).

4. A distributed photovoltaic system with self-cleaning function according to claim 1, characterized in that: The drying component (24) comprises two electric telescopic rods (241) symmetrically arranged on the top of the moving plate (22) with the center of the moving plate (22) as an axis, the execution ends of the two electric telescopic rods (241) are provided with lifting plates (242), the bottom of the lifting plates (242) is provided with absorbent cotton, and the two electric telescopic rods (241) are electrically connected to a PLC controller.

5. A distributed photovoltaic system with self-cleaning function according to claim 1, characterized in that: A heating module is provided on the contact surface between the bottom of the movable plate (22) and the photovoltaic panel (11).

6. A distributed photovoltaic system with self-cleaning function according to claim 1, characterized in that: The inner bottom wall of the sewage channel (14) is sloped toward the drain port (15).

7. A distributed photovoltaic system with self-cleaning function according to claim 1, characterized in that: The detection component (25) comprises a detector (251) arranged on the top of the moving plate (22), and the detector (251) is electrically connected to a PLC controller.

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