Self-cleaning photovoltaic panel for photovoltaic power generation

Abstract

The invention discloses a self-cleaning photovoltaic panel for photovoltaic power generation, and relates to the technical field of photovoltaic panels, the self-cleaning photovoltaic panel comprises a photovoltaic panel, the outer wall of the photovoltaic panel is fixedly provided with a collecting device, the collecting device is used for collecting rainwater and flushing the photovoltaic panel, the exterior of the collecting device is provided with a cleaning device, and the cleaning device is used for cleaning the photovoltaic panel. According to the photovoltaic panel cleaning device, the cleaning device is arranged, a servo motor drives an adjusting screw rod to rotate and drives a mounting frame to slide, a cleaning roller can move front and back for cleaning in the moving process, and the cleaning roller can move back and forth for cleaning in the moving process; and self-rotation and multi-angle cleaning of the surface of the photovoltaic panel can be achieved through meshing with the tooth grooves. And meanwhile, the scraper is always in contact with the surface of the photovoltaic panel under the action of the spring, so that dust and water stains after cleaning are thoroughly scraped, the cleaning effect is greatly improved, and the power generation efficiency of the photovoltaic panel is not influenced by impurities such as dust and the like.

Description

Technical Field

[0001] The present invention relates to the technical field, and in particular to a self-cleaning photovoltaic panel for photovoltaic power generation. Background Art

[0002] As the global demand for clean energy grows, photovoltaic power generation has been widely used and developed as a sustainable energy solution. However, in actual use, the cleaning and maintenance of photovoltaic panels have become key factors affecting their power generation efficiency and service life.

[0003] Traditional photovoltaic panels face many challenges in cleaning. The first is the problem of clean water. Most photovoltaic panels are installed outdoors and usually rely on manual regular washing with a large amount of clean water. This not only consumes a lot of precious water resources, but also increases maintenance costs. This problem is particularly prominent in areas with scarce water resources. Secondly, the cleaning effect of traditional cleaning methods is limited. Manual wiping or simple water washing is difficult to completely remove impurities such as dust, dirt, and bird droppings on the surface of photovoltaic panels. These impurities will block light and reduce the power generation efficiency of photovoltaic panels over a long period of time.

[0004] In order to solve the above problems, the present invention proposes a self-cleaning photovoltaic panel for photovoltaic power generation. Through innovative collection devices, cleaning devices and storage devices, it effectively improves the utilization rate of water resources, enhances the cleaning effect, and improves the protection performance, providing a more efficient and reliable solution for the field of photovoltaic power generation. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention adopts the following technical solutions to solve the technical problems: a self-cleaning photovoltaic panel for photovoltaic power generation, comprising: a photovoltaic panel, a collecting device is fixedly installed on the outer wall of the photovoltaic panel, the collecting device is used to collect rainwater and wash the photovoltaic panel, a cleaning device is arranged on the outside of the collecting device, and a retracting and extending device is symmetrically arranged on the outer wall of the collecting device, the retracting and extending device is used to protect the photovoltaic panel in a windy and sandy environment; the cleaning device comprises a mounting frame, the inner wall of the mounting frame is rotatably connected to a rotating rod, the outer wall of the rotating rod is fixedly connected to a cleaning roller, a servo motor is arranged on the outside of the mounting frame, an adjusting screw is fixedly connected to the output end of the servo motor, and a toggle gear is fixedly connected to the end of the rotating rod away from the cleaning roller; the collecting device comprises a fixed frame, a accommodating cavity is provided inside the fixed frame, a tooth groove is provided on the outer wall of the fixed frame, a gathering cover is provided on the top of the fixed frame, and a drainage groove is provided in the wall of the fixed frame.

[0006] The present invention is further configured such that the inner wall of the fixing frame is fixedly connected to the outer wall of the photovoltaic panel, the inner wall of the accommodating cavity is fixedly connected to a liquid collecting pipe, a liquid outlet groove is provided in the wall of the liquid collecting pipe, the outer wall of the fixing frame is fixedly connected to a drainage pipe, and the outer wall of the drainage pipe is fixedly connected to a water pump. When the water pump is started, rainwater is transported to the liquid collecting pipe through the drainage pipe, and discharged to the outside through the liquid outlet groove, and then washed the surface of the photovoltaic panel through the drainage groove.

[0007] The present invention is further configured such that the outer wall of the water pump is fixedly connected to the outer wall of the fixed frame, the top of the drainage pipe is fixedly connected to the inner wall of the liquid collecting pipe, the inner wall of the accommodating chamber is symmetrically fixedly connected with a fixed block, a liquid inlet groove is provided in the wall of the fixed block, and a slide rod is slidably connected in the wall of the fixed block. Rainwater passes through the liquid outlet groove provided on the fixed block and enters the sealing cover. Under the influence of gravity, the sealing cover drives the slide rod to move downward and compresses the reset spring. At this time, the rainwater can pass through the liquid inlet groove and be collected in the accommodating chamber.

[0008] The present invention is further configured such that a sealing cover is fixedly connected to the bottom end of the slide rod, a return spring is fixedly connected to the top end of the slide rod, an end of the return spring away from the slide rod is fixedly connected to the outer wall of the fixed block, and the outer wall of the sealing cover is slidably connected to the outer wall of the fixed block. When there is no rain, the sealing cover is slidably connected to the fixed block through the slide rod, and the return spring drives the sealing cover to move and return to its original position after flushing is completed, thereby preventing rainwater from being lost.

[0009] The present invention is further configured such that a filter plate is fixedly connected to the inner wall of the gathering hood, and a sewage outlet is symmetrically opened on the inner wall of the gathering hood. The gathering hood is used to collect rainwater and introduce it into the accommodating cavity, and a filter plate is also provided inside the gathering hood to filter impurities in the rainwater to prevent blockage, and the blocked impurities are discharged outward through the sewage outlet.

[0010] The present invention is further configured such that the outer wall of the mounting frame is slidably connected to the outer wall of the fixed frame, the outer wall of the cleaning roller is slidably connected to the outer wall of the photovoltaic panel, the toggle gear is meshed with the tooth groove, the outer wall of the servo motor is fixedly connected to the outer wall of the fixed frame, and the inner wall of the mounting frame is threadedly connected to the outer wall of the adjusting screw. The servo motor drives the fixedly connected adjusting screw to rotate, so that the mounting frame threadedly connected thereto slides on the fixed frame, and during the movement, drives the cleaning roller on the rotating rod to move to clean the surface of the photovoltaic panel.

[0011] The present invention is further configured such that the outer wall of the mounting frame is symmetrically fixedly connected to a limit rod, the outer wall of the limit rod is slidably connected to a connecting plate, the bottom end of the connecting plate is fixedly connected to a scraper, and the outer wall of the connecting plate is symmetrically fixedly connected to a push spring. The push spring pushes the connecting plate to slide downward on the limit rod, so that the fixedly connected scraper is always in contact with the photovoltaic panel, maintaining the contact pressure with the surface of the photovoltaic panel, and scraping off the cleaned dust and water stains.

[0012] The present invention is further configured such that one end of the push spring away from the connecting plate is fixedly connected to the outer wall of the limiting rod, the outer wall of the scraper is slidably connected to the outer wall of the photovoltaic panel, and the push spring is arranged outside the limiting rod.

[0013] The present invention is further configured such that the retractable and deployable device comprises a fixed plate, the inner wall of the fixed plate is rotatably connected to a protective cover, the inner wall of the protective cover is rotatably connected to a linkage shaft, a telescopic rod is arranged outside the protective cover, and the bottom end of the telescopic rod is fixedly connected to a mounting rod. In a sandstorm environment, the telescopic rod drives the protective cover to unfold, covering the surface of the photovoltaic panel to prevent sandstorm erosion.

[0014] The present invention is further configured such that the outer wall of the fixing plate is fixedly connected to the outer wall of the fixing frame, the outer wall of the mounting rod is rotatably connected to the inner wall of the fixing frame, and the top end of the telescopic rod is fixedly connected to the outer wall of the linkage shaft.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The present invention can effectively collect rainwater on rainy days by setting up a collection device. The collection cover and filter plate can not only collect rainwater, but also filter impurities to avoid blockage. Part of the collected rainwater is used to immediately clean the photovoltaic panels, and the other part is stored and transported by a water pump for cleaning when needed, which greatly improves the utilization rate of water resources, reduces the consumption of additional cleaning water, and reduces maintenance costs.

[0017] 2. The present invention sets a cleaning device, and the servo motor drives the adjusting screw to rotate, driving the mounting frame to slide. The cleaning roller can not only move back and forth to clean during the movement, but also realize self-rotation through meshing with the tooth groove, so as to clean the surface of the photovoltaic panel at multiple angles. At the same time, the scraper always keeps in contact with the surface of the photovoltaic panel under the action of the spring, ensuring that the dust and water stains after cleaning are completely scraped off, greatly improving the cleaning effect, and ensuring that the power generation efficiency of the photovoltaic panel is not affected by dust and other impurities.

[0018] 3. The present invention plays an important role at night or when there is strong wind and sand by setting a retractable and deploying device. In a windy and sandy environment, the telescopic rod drives the protective cover to unfold and cover the surface of the photovoltaic panel, effectively preventing the erosion of the photovoltaic panel by wind and sand, and extending the service life of the photovoltaic panel. When the weather improves, the protective cover is retracted, and the photovoltaic panel can quickly return to normal working state, ensuring the stability and sustainability of photovoltaic power generation.

[0019] 4. The entire working process of the self-cleaning photovoltaic panel of the present invention, whether it is rainwater collection and utilization, photovoltaic panel surface cleaning, or the development of the protective cover, can be automatically completed through the corresponding driving device, reducing manual intervention, improving work efficiency, and reducing manual maintenance costs. It is suitable for application in large-scale photovoltaic power stations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the structure of the photovoltaic panel of the present invention;

[0021] Figure 3 It is a schematic diagram of the mechanism of the collecting device of the present invention;

[0022] Figure 4 It is a schematic diagram of the internal mechanism of the collecting device of the present invention;

[0023] Figure 5 The present invention Figure 4 A magnified view of the structure at A;

[0024] Figure 6 It is a schematic diagram of the structure of the cleaning device of the present invention;

[0025] Figure 7 It is a schematic diagram of the structure of the scraper blade of the present invention;

[0026] Figure 8 It is a structural schematic diagram of the stowage and expansion device of the present invention.

[0027] In the figure: 1. photovoltaic panel; 2. collecting device; 21. fixing frame; 22. tooth groove; 23. drainage trough; 24. gathering cover; 25. accommodating chamber; 26. filter plate; 27. sewage outlet; 28. drainage pipe; 29. ​​water pump; 210. liquid collecting pipe; 211. liquid outlet trough; 212. liquid inlet trough; 213. reset spring; 214. slide bar; 215. sealing cover; 216. fixing block; 3. cleaning device; 31. adjusting screw; 32. servo motor; 33. mounting frame; 34. cleaning roller; 35. toggle gear; 36. rotating rod; 37. pushing spring; 38. connecting plate; 39. scraper; 310. limit rod; 4. retracting and extending device; 41. fixing plate; 42. protective cover; 43. linkage shaft; 44. telescopic rod; 45. mounting rod. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0029] Example:

[0030] See also Figure 1 - Figure 8 The present invention provides a technical solution: a self-cleaning photovoltaic panel for photovoltaic power generation, comprising: a photovoltaic panel 1, a collecting device 2 is fixedly installed on the outer wall of the photovoltaic panel 1, the collecting device 2 is used to collect rainwater and wash the photovoltaic panel 1, a cleaning device 3 is arranged outside the collecting device 2, and a collection and expansion device 4 is symmetrically arranged on the outer wall of the collecting device 2, and the collection and expansion device 4 is used to protect the photovoltaic panel 1 in a windy and sandy environment; the cleaning device 3 comprises a mounting frame 33, the inner wall of the mounting frame 33 is rotatably connected with a rotating rod 36, the outer wall of the rotating rod 36 is fixedly connected with a cleaning roller 34, a servo motor 32 is arranged outside the mounting frame 33, the output end of the servo motor 32 is fixedly connected with an adjusting screw 31, and the end of the rotating rod 36 away from the cleaning roller 34 is fixedly connected with a toggle gear 35; the collecting device 2 comprises a fixed frame 21, the interior of the fixed frame 21 is provided with a accommodating cavity 25, the outer wall of the fixed frame 21 is provided with a tooth groove 22, the top of the fixed frame 21 is provided with a gathering cover 24, and the wall of the fixed frame 21 is provided with a drainage groove 23.

[0031] The inner wall of the fixed frame 21 is fixedly connected to the outer wall of the photovoltaic panel 1, the inner wall of the accommodating chamber 25 is fixedly connected with a liquid collecting pipe 210, a liquid outlet groove 211 is opened in the wall of the liquid collecting pipe 210, the outer wall of the fixed frame 21 is fixedly connected with a drainage pipe 28, and the outer wall of the drainage pipe 28 is fixedly connected with a water pump 29. When the photovoltaic panel 1 needs to be cleaned, the water pump 29 is started to transport rainwater through the drainage pipe 28 to the fixedly connected liquid collecting pipe 210, and discharge it to the outside through the opened liquid outlet groove 211, and then pass through the drainage groove 23 to wash the surface of the photovoltaic panel 1.

[0032] The outer wall of the water pump 29 is fixedly connected to the outer wall of the fixed frame 21, the top of the drainage pipe 28 is fixedly connected to the inner wall of the liquid collecting pipe 210, and the inner wall of the accommodating chamber 25 is symmetrically fixedly connected with a fixing block 216, a liquid inlet groove 212 is opened in the wall of the fixing block 216, and a slide bar 214 is slidably connected in the wall of the fixing block 216. Rainwater passes through the liquid outlet groove 211 opened on the fixing block 216 and enters the sealing cover 215. Under the influence of gravity, the sealing cover 215 drives the slide bar 214 to move downward and compresses the reset spring 213. At this time, the rainwater can pass through the liquid inlet groove 212 and be collected in the accommodating chamber 25.

[0033] The bottom end of the slide bar 214 is fixedly connected with a sealing cover 215, the top end of the slide bar 214 is fixedly connected with a return spring 213, the end of the return spring 213 away from the slide bar 214 is fixedly connected with the outer wall of the fixed block 216, and the outer wall of the sealing cover 215 is slidably connected with the outer wall of the fixed block 216. When there is no rain, the sealing cover is slidably connected with the fixed block 216 through the slide bar 214, and the return spring 213 drives the sealing cover 215 to move and reset after flushing to prevent rainwater from being lost.

[0034] The inner wall of the gathering hood 24 is fixedly connected with a filter plate 26, and the inner wall of the gathering hood 24 is symmetrically provided with a sewage outlet 27. The gathering hood 24 is used to collect rainwater and introduce it into the accommodating chamber 25. The gathering hood 24 is also provided with a filter plate 26 for filtering impurities in the rainwater to prevent clogging, and the blocked impurities are discharged outward through the sewage outlet 27.

[0035] The outer wall of the mounting frame 33 is slidably connected to the outer wall of the fixed frame 21, the outer wall of the cleaning roller 34 is slidably connected to the outer wall of the photovoltaic panel 1, the toggle gear 35 is meshed with the tooth groove 22, the outer wall of the servo motor 32 is fixedly connected to the outer wall of the fixed frame 21, and the inner wall of the mounting frame 33 is threadedly connected to the outer wall of the adjusting screw 31. The servo motor 32 drives the fixedly connected adjusting screw 31 to rotate, so that the mounting frame 33 threadedly connected thereto slides on the fixed frame 21, and in the process of moving, drives the cleaning roller 34 on the rotating rod 36 to move, so as to clean the surface of the photovoltaic panel 1.

[0036] The outer wall of the mounting frame 33 is symmetrically fixedly connected to the limit rod 310, the outer wall of the limit rod 310 is slidably connected to the connecting plate 38, the bottom end of the connecting plate 38 is fixedly connected to the scraper 39, and the outer wall of the connecting plate 38 is symmetrically fixedly connected to the push spring 37. The push spring 37 pushes the fixedly connected connecting plate 38 to slide downward on the outer wall of the limit rod 310, so that the fixedly connected scraper 39 is always in contact with the photovoltaic panel 1, maintaining the contact pressure with the surface of the photovoltaic panel, and scraping off the cleaned dust and water stains.

[0037] One end of the push spring 37 away from the connecting plate 38 is fixedly connected to the outer wall of the limiting rod 310 , the outer wall of the scraper 39 is slidably connected to the outer wall of the photovoltaic panel 1 , and the push spring 37 is arranged outside the limiting rod 310 .

[0038] The retracting and extending device 4 includes a fixing plate 41 , the inner wall of the fixing plate 41 is rotatably connected to a protective cover 42 , the inner wall of the protective cover 42 is rotatably connected to a linkage shaft 43 , a telescopic rod 44 is arranged outside the protective cover 42 , and a mounting rod 45 is fixedly connected to the bottom end of the telescopic rod 44 .

[0039] The outer wall of the fixing plate 41 is fixedly connected to the outer wall of the fixing frame 21 , the outer wall of the mounting rod 45 is rotatably connected to the inner wall of the fixing frame 21 , and the top end of the telescopic rod 44 is fixedly connected to the outer wall of the linkage shaft 43 .

[0040] Working principle:

[0041] When in use, by setting the collecting device 2, on rainy days, rainwater enters the accommodating chamber 25 opened in the fixed frame 21 through the collecting hood 24. The top of the fixed frame 21 is provided with a collecting hood 24 for collecting rainwater and introducing it into the accommodating chamber 25. The collecting hood 24 is also provided with a filter disc 26 for filtering impurities in the rainwater to prevent blockage. The blocked impurities are discharged outward through the sewage outlet 27. A part of the rainwater that passes through is sprinkled on the photovoltaic panel 1 through the drainage groove 23 to clean it, and the other part passes through the liquid outlet groove 211 opened on the fixed block 216 and enters the sealing cover 215. Affected by gravity, The sealing cover 215 drives the slide bar 214 to move downward and compresses the reset spring 213. At this time, rainwater can pass through the liquid inlet groove 212 and be collected in the accommodating chamber 25. When there is no rainwater, the sealing cover 215 is slidably connected with the fixed block 216 through the slide bar 214. The reset spring 213 drives the sealing cover 215 to move and reset after the flushing is completed to prevent the rainwater from being lost. When the photovoltaic panel needs to be cleaned, the water pump 29 is started to transport the rainwater to the liquid collecting pipe 210 through the drainage pipe 28, and discharge it to the outside through the liquid outlet groove 211, and then pass through the drainage groove 23 to flush the surface of the photovoltaic panel 1;

[0042] By setting the cleaning device 3, when it is necessary to clean the surface of the photovoltaic panel 1, the servo motor 32 is started to drive the fixedly connected adjusting screw 31 to rotate, so that the mounting frame 33 threadedly connected thereto slides on the fixed frame 21, and during the movement, the cleaning roller 34 on the rotating rod 36 is driven to move to clean the surface of the photovoltaic panel 1. During the movement, the gear 35 is meshed with the tooth groove 22, so that the cleaning roller 34 rotates during the movement to improve the cleaning effect. The cleaning roller 34 cleans first, and the push spring 37 pushes the connecting plate 38 to slide downward on the limiting rod 310, so that the fixedly connected scraper 39 is always in contact with the photovoltaic panel 1, maintaining the contact pressure with the surface of the photovoltaic panel, and scraping off the cleaned dust and water stains;

[0043] By setting the retractable and deployable device 4, at night or when the wind and sand are strong, the protective cover 42 is connected to the telescopic rod 44 through the linkage shaft 43, and the telescopic rod 44 is rotatably connected to the fixed frame 21 through the mounting rod 45. In a windy and sandy environment, the telescopic rod 44 drives the protective cover 42 to unfold, covering the surface of the photovoltaic panel 1 to prevent wind and sand erosion. When the weather improves, the telescopic rod 44 retracts, the protective cover 42 is retracted, and the photovoltaic panel 1 returns to normal working state.

[0044] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A self-cleaning photovoltaic panel for photovoltaic power generation, comprising: A photovoltaic panel (1), characterized in that a collecting device (2) is fixedly mounted on the outer wall of the photovoltaic panel (1), the collecting device (2) is used to collect rainwater and wash the photovoltaic panel (1), a cleaning device (3) is arranged outside the collecting device (2), and a retracting device (4) is symmetrically arranged on the outer wall of the collecting device (2), the retracting device (4) is used to protect the photovoltaic panel (1) in a sandstorm environment; The cleaning device (3) comprises a mounting frame (33), the inner wall of the mounting frame (33) is rotatably connected to a rotating rod (36), the outer wall of the rotating rod (36) is fixedly connected to a cleaning roller (34), a servo motor (32) is arranged outside the mounting frame (33), the output end of the servo motor (32) is fixedly connected to an adjusting screw (31), and one end of the rotating rod (36) away from the cleaning roller (34) is fixedly connected to a toggle gear (35); The collecting device (2) comprises a fixed frame (21), a receiving cavity (25) is provided inside the fixed frame (21), a tooth groove (22) is provided on the outer wall of the fixed frame (21), a gathering cover (24) is provided at the top of the fixed frame (21), and a drainage groove (23) is provided in the wall of the fixed frame (21).

2. A self-cleaning photovoltaic panel for photovoltaic power generation according to claim 1, characterized in that: The inner wall of the fixed frame (21) is fixedly connected to the outer wall of the photovoltaic panel (1); the inner wall of the accommodating cavity (25) is fixedly connected to a liquid collecting pipe (210); a liquid outlet groove (211) is provided in the wall of the liquid collecting pipe (210); the outer wall of the fixed frame (21) is fixedly connected to a drainage pipe (28); and the outer wall of the drainage pipe (28) is fixedly connected to a water pump (29).

3. A self-cleaning photovoltaic panel for photovoltaic power generation according to claim 2, characterized in that: The outer wall of the water pump (29) is fixedly connected to the outer wall of the fixed frame (21), the top end of the drainage pipe (28) is fixedly connected to the inner wall of the liquid collecting pipe (210), the inner wall of the accommodating chamber (25) is symmetrically fixedly connected with a fixing block (216), a liquid inlet groove (212) is provided in the wall of the fixing block (216), and a sliding rod (214) is slidably connected to the wall of the fixing block (216).

4. A self-cleaning photovoltaic panel for photovoltaic power generation according to claim 3, characterized in that: The bottom end of the slide bar (214) is fixedly connected to a sealing cover (215), the top end of the slide bar (214) is fixedly connected to a return spring (213), one end of the return spring (213) away from the slide bar (214) is fixedly connected to the outer wall of the fixed block (216), and the outer wall of the sealing cover (215) is slidably connected to the outer wall of the fixed block (216).

5. The self-cleaning photovoltaic panel for photovoltaic power generation according to claim 1, characterized in that: A filter disc (26) is fixedly connected to the inner wall of the gathering hood (24), and sewage outlets (27) are symmetrically provided on the inner wall of the gathering hood (24).

6. The self-cleaning photovoltaic panel for photovoltaic power generation according to claim 1, characterized in that: The outer wall of the mounting frame (33) is slidably connected to the outer wall of the fixed frame (21), the outer wall of the cleaning roller (34) is slidably connected to the outer wall of the photovoltaic panel (1), the shifting gear (35) is meshed with the tooth groove (22), the outer wall of the servo motor (32) is fixedly connected to the outer wall of the fixed frame (21), and the inner wall of the mounting frame (33) is threadedly connected to the outer wall of the adjusting screw (31).

7. A self-cleaning photovoltaic panel for photovoltaic power generation according to claim 6, characterized in that: The outer wall of the mounting frame (33) is symmetrically fixedly connected to a limit rod (310), the outer wall of the limit rod (310) is slidably connected to a connecting plate (38), the bottom end of the connecting plate (38) is fixedly connected to a scraper (39), and the outer wall of the connecting plate (38) is symmetrically fixedly connected to a push spring (37).

8. A self-cleaning photovoltaic panel for photovoltaic power generation according to claim 7, characterized in that: One end of the push spring (37) away from the connecting plate (38) is fixedly connected to the outer wall of the limiting rod (310), the outer wall of the scraper (39) is slidably connected to the outer wall of the photovoltaic panel (1), and the push spring (37) is arranged outside the limiting rod (310).

9. The self-cleaning photovoltaic panel for photovoltaic power generation according to claim 1, characterized in that: The retractable and deployable device (4) comprises a fixed plate (41), the inner wall of the fixed plate (41) is rotatably connected to a protective cover (42), the inner wall of the protective cover (42) is rotatably connected to a linkage shaft (43), a telescopic rod (44) is arranged outside the protective cover (42), and the bottom end of the telescopic rod (44) is fixedly connected to a mounting rod (45).

10. A self-cleaning photovoltaic panel for photovoltaic power generation according to claim 9, characterized in that: The outer wall of the fixing plate (41) is fixedly connected to the outer wall of the fixing frame (21), the outer wall of the mounting rod (45) is rotatably connected to the inner wall of the fixing frame (21), and the top end of the telescopic rod (44) is fixedly connected to the outer wall of the linkage shaft (43).

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