Super-hydrophobic self-cleaning photovoltaic glass
By designing active cleaning components and guide rail structures, the problems of low efficiency in cleaning sand and dust from photovoltaic glass surfaces and secondary pollution have been solved, achieving all-round cleaning and drying, and improving the light transmittance and power generation efficiency of photovoltaic modules.
Patent Information
- Application Number
- CN202423171925.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-23
AI Technical Summary
When existing photovoltaic glass is used outdoors, the coating cannot actively remove sand and dust, which leads to a decrease in the power generation efficiency of photovoltaic modules, and the cleaning process may cause secondary pollution.
An active cleaning assembly was designed, comprising a motor, lead screw, movable rod, water tank, scraper, and suction roller. The motor drives the lead screw to move the movable rod and water tank. Combined with a wave-shaped limiting plate and guide rail structure, it achieves all-round cleaning and water absorption, avoiding secondary pollution caused by resetting after cleaning.
It achieves comprehensive cleaning of the photovoltaic glass surface, improves light transmittance and power generation efficiency, avoids dust and water stains, keeps the photovoltaic modules clean and dry, and enhances the stability and power generation performance of the photovoltaic modules.
Smart Images

Figure CN223942658U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of photovoltaic glass technology, specifically to a superhydrophobic self-cleaning photovoltaic glass. Background Technology
[0002] When solar cells are used outdoors, the complex and changeable weather inevitably causes moisture and dust to remain on the surface of the cells, affecting the light transmittance and the stability of the glass, which in turn affects the photoelectric conversion efficiency and module stability of the solar cells.
[0003] According to a public announcement of a superhydrophobic self-cleaning photovoltaic glass and solar cell (Announcement No.: CN220502928U), the above application includes glass and a superhydrophobic self-cleaning coating disposed on the surface of the glass; the superhydrophobic self-cleaning coating includes a nano-titanium dioxide layer and a perfluorosilane layer; the nano-titanium dioxide layer is in contact with the glass.
[0004] However, in actual use, the above-mentioned photovoltaic glass improves its self-cleaning ability by adding a coating. The coating can only prevent dust and moisture from affecting the light absorption of the battery to a certain extent. However, the Gobi Desert is prone to sandstorms all year round, and the coating cannot actively remove sand and dust. Sand and dust easily adhere to the surface of the photovoltaic glass, blocking sunlight and weakening the power generation efficiency of the photovoltaic module. In view of this, we propose a superhydrophobic self-cleaning photovoltaic glass. Utility Model Content
[0005] The purpose of this invention is to provide a superhydrophobic self-cleaning photovoltaic glass to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a superhydrophobic self-cleaning photovoltaic glass, comprising a photovoltaic glass body, a mounting frame fixedly connected to the bottom end face of the photovoltaic glass body, and an active cleaning component provided on the top end face of the mounting frame, the active cleaning component comprising:
[0007] The motor is fixedly connected to the inner wall of the mounting bracket. A lead screw is fixedly connected to the output end of the motor. A movable rod is threadedly connected to the side wall of the lead screw. The movable rod is slidably connected to the connecting piece.
[0008] A water tank is fixedly connected to the side wall of the connector, and the water tank is slidably connected to the movable plate. Limit blocks are fixedly connected to both ends of the movable plate.
[0009] A scraper is fixedly connected to the side wall of the connector, and the end face of the scraper is fixedly connected to the arc-shaped baffle. A water-absorbing roller is rotatably connected to the side wall of the connector.
[0010] A limiting plate is fixedly connected to the side wall of the mounting frame.
[0011] Preferably, a limiting frame is fixedly connected to the bottom of the mounting bracket, and the limiting frame is slidably connected to the movable rod. The limiting frame limits the movable rod so that the movable rod can only move laterally back and forth.
[0012] Preferably, the limiting plate has a wave-shaped side near the photovoltaic glass body, and there are two sets of limiting plates. The wave-shaped sidewalls of the two sets of limiting plates are arranged alternately, and the wave-shaped limiting plates push the limiting block and the movable plate to move laterally back and forth.
[0013] Preferably, the end face of the movable plate is provided with a water outlet, and several sets of water outlets are provided. The lateral movement of the movable plate changes the position of the water outlet, thereby improving the spraying effect.
[0014] Preferably, a vertical plate is fixedly connected to the top end face of the limiting plate, and a lower guide rail and an upper guide rail are provided on the side wall of the vertical plate. The lower guide rail and the upper guide rail are connected at both ends, and a hinge plate is hinged to the side wall of the upper guide rail.
[0015] Preferably, the connector is fixedly connected to the crossbar, the crossbar is slidably connected to the upper guide rail, and the crossbar is slidably connected to the lower guide rail.
[0016] Compared with the prior art, this utility model provides a superhydrophobic self-cleaning photovoltaic glass, which has the following beneficial effects:
[0017] 1. This superhydrophobic self-cleaning photovoltaic glass, through its water tank, movable plate, scraper, and water-absorbing roller, features a horizontally swinging water outlet, increasing the cleaning range and preventing water flow from being confined to a single line. This ensures thorough cleaning without dead corners, reduces stain residue, and improves the light transmittance of the photovoltaic glass, thereby enhancing photovoltaic power generation efficiency. The water-absorbing roller absorbs any residual water on the upper surface of the photovoltaic glass, ensuring complete surface dryness. Combining cleaning, scraping, and water absorption functions, this product can remove large amounts of dust, mud, and water stains from the surface of photovoltaic glass in harsh environments such as the Gobi Desert, keeping the photovoltaic glass surface clean and dry, effectively improving light transmittance, and thus enhancing the power generation efficiency of the photovoltaic module.
[0018] 2. This superhydrophobic self-cleaning photovoltaic glass, through the upper and lower guide rails, lifts the scraper and water-absorbing roller upward when the crossbar is on the upper guide rail, avoiding contact between the scraper and water-absorbing roller and the photovoltaic glass body during the reset process, thus avoiding secondary pollution or unnecessary cleaning caused by the reset action after cleaning. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the main structure of the present utility model;
[0020] Figure 2 This utility model Figure 1 Schematic diagram of the structure of region A in the middle;
[0021] Figure 3 This is a schematic diagram of the main body structure of this utility model from a bottom view;
[0022] Figure 4 This utility model Figure 3 Schematic diagram of the structure of region B in the middle;
[0023] Figure 5 This is a schematic diagram of the water tank structure of this utility model;
[0024] Figure 6 This is a schematic diagram of the water-absorbing roller structure of this utility model.
[0025] In the diagram: 1. Photovoltaic glass body; 2. Mounting frame; 3. Active cleaning module; 301. Motor; 302. Lead screw; 303. Movable rod; 304. Connector; 305. Water tank; 306. Movable plate; 307. Limiting block; 308. Scraper; 309. Arc baffle; 310. Water absorption roller; 311. Limiting plate; 4. Limiting frame; 5. Vertical plate; 6. Lower guide rail; 7. Upper guide rail; 8. Hinge plate; 9. Horizontal bar. Detailed Implementation
[0026] like Figures 1-6 As shown, this utility model provides a technical solution: a superhydrophobic self-cleaning photovoltaic glass, including a photovoltaic glass body 1, a mounting frame 2 fixedly connected to the bottom end face of the photovoltaic glass body 1, and an active cleaning component 3 provided on the top end face of the mounting frame 2. The active cleaning component 3 includes a motor 301, a lead screw 302, a movable rod 303, a connector 304, a water tank 305, a movable plate 306, a limiting block 307, a scraper 308, an arc-shaped baffle 309, a water absorption roller 310, and a limiting plate 311.
[0027] In one embodiment of this utility model, a motor 301 is fixedly connected to the inner wall of the mounting bracket 2. A lead screw 302 is fixedly connected to the output end of the motor 301. A movable rod 303 is threadedly connected to the side wall of the lead screw 302. The movable rod 303 is slidably connected to the connecting piece 304. A limit frame 4 is fixedly connected to the bottom of the mounting bracket 2. The limit frame 4 is slidably connected to the movable rod 303. The limit frame 4 limits the movable rod 303 so that the movable rod 303 can only move laterally back and forth.
[0028] Water tank 305 is fixedly connected to the side wall of connector 304. Water tank 305 is slidably connected to movable plate 306. Limiting blocks 307 are fixedly connected to both ends of movable plate 306. Water outlets are provided on the end face of movable plate 306. Several sets of water outlets are provided. The position of the water outlets is changed by the lateral movement of movable plate 306, thereby improving the spraying effect. Scraper 308 is fixedly connected to the side wall of connector 304. The end face of scraper 308 is fixedly connected to arc baffle 309. Water suction roller 310 is rotatably connected to the side wall of connector 304.
[0029] The limiting plate 311 is fixedly connected to the side wall of the mounting frame 2. The side of the limiting plate 311 closest to the photovoltaic glass body 1 is wavy. There are two sets of limiting plates 311. The wavy side walls of the two sets of limiting plates 311 are arranged alternately. The wavy limiting plate 311 pushes the limiting block 307 and the movable plate 306 to move laterally back and forth.
[0030] The surface of the photovoltaic glass body 1 is provided with a superhydrophobic self-cleaning coating composed of a titanium dioxide layer and a perfluorosilane layer, which reduces the impact of moisture and dust on the light absorption of the battery and reduces operation and maintenance costs. At the same time, the titanium dioxide layer can effectively absorb ultraviolet light, thereby reducing the absorption of ultraviolet light by the battery module and improving the stability of photovoltaic power generation.
[0031] Motor 301 drives lead screw 302 to rotate, causing movable rod 303 to move longitudinally. The longitudinal movement of movable rod 303 drives connector 304 and water tank 305 to move longitudinally, so that water tank 305 cleans the top end face of photovoltaic glass body 1. While water tank 305 moves longitudinally, wave-shaped limiting plate 311 pushes limiting block 307 and movable plate 306 to move laterally back and forth, thereby causing water outlet to swing laterally, increasing the cleaning range of water outlet, avoiding water flow being limited to a single line, ensuring cleaning without dead corners, reducing stain residue, improving the light transmittance of photovoltaic glass body 1, and thus improving photovoltaic power generation efficiency.
[0032] Subsequently, the scraper 308 scrapes away the dust and water droplets that were not washed away by the water, and the water-absorbing roller 310 absorbs the water remaining on the upper surface of the photovoltaic glass body 1 to ensure that the surface is completely dry, avoiding water stains that may appear due to natural drying. These stains may reduce the light transmittance of the glass, and at the same time, prevent water and dust from combining and causing dust to re-adhere.
[0033] Combining multiple functions such as cleaning, scraping, and water absorption, it can remove a large amount of dust, mud, and water stains from the surface of photovoltaic glass in harsh environments such as the Gobi Desert, keeping the photovoltaic glass surface clean and dry, effectively improving light transmission performance, and thus improving the power generation efficiency of photovoltaic modules.
[0034] Additionally, a vertical plate 5 is fixedly connected to the top end face of the limiting plate 311. A lower guide rail 6 and an upper guide rail 7 are provided on the side wall of the vertical plate 5. The lower guide rail 6 and the upper guide rail 7 are connected at both ends. A hinge plate 8 is hinged to the side wall of the upper guide rail 7. A connecting piece 304 is fixedly connected to a horizontal bar 9. The horizontal bar 9 is slidably connected to the upper guide rail 7 and to the lower guide rail 6. The connecting piece 304 moves towards the motor 301, and the horizontal bar 9 slides within the lower guide rail 6. When the horizontal bar 9 reaches its lowest position... The crossbar 9 pushes open the hinge plate 8 and is guided into the upper guide rail 7. Then, the hinge plate 8 resets due to gravity. At this time, the motor 301 moves in the opposite direction. The crossbar 9 is blocked by the hinge plate 8 and can only slide along the upper guide rail 7. When the crossbar 9 is on the upper guide rail 7, it lifts the scraper 308 and the water suction roller 310 upward to avoid the scraper 308 and the water suction roller 310 from contacting the photovoltaic glass body 1 during the reset process, and to avoid secondary pollution or unnecessary cleaning caused by the reset action after cleaning.
[0035] In this utility model, when in use, the motor 301 drives the lead screw 302 to rotate, and the water tank 305 moves longitudinally, so that the water tank 305 cleans the top end face of the photovoltaic glass body 1. Then the scraper 308 scrapes away the dust and water droplets that have not been washed away by the water, and the water absorption roller 310 absorbs the water remaining on the upper surface of the photovoltaic glass body 1 to ensure that the surface is completely dry.
[0036] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A superhydrophobic self-cleaning photovoltaic glass, comprising a photovoltaic glass body (1), wherein a mounting bracket (2) is fixedly connected to the bottom end face of the photovoltaic glass body (1), characterized in that: The top end face of the mounting bracket (2) is provided with an active cleaning component (3), the active cleaning component (3) including: The motor (301) is fixedly connected to the inner wall of the mounting bracket (2). The output end of the motor (301) is fixedly connected to a lead screw (302). The side wall of the lead screw (302) is threadedly connected to a movable rod (303). The movable rod (303) is slidably connected to the connector (304). A water tank (305) is fixedly connected to the side wall of the connector (304), and the water tank (305) is slidably connected to the movable plate (306). Limiting blocks (307) are fixedly connected to both ends of the movable plate (306). A scraper (308) is fixedly connected to the side wall of the connector (304). The end face of the scraper (308) is fixedly connected to the arc-shaped baffle (309). A water-absorbing roller (310) is rotatably connected to the side wall of the connector (304). A limiting plate (311) is fixedly connected to the side wall of the mounting bracket (2).
2. The superhydrophobic self-cleaning photovoltaic glass according to claim 1, characterized in that: The bottom of the mounting bracket (2) is fixedly connected to a limiting bracket (4), and the limiting bracket (4) is slidably connected to the movable rod (303).
3. The superhydrophobic self-cleaning photovoltaic glass according to claim 1, characterized in that: The limiting plate (311) is wavy on the side near the photovoltaic glass body (1), and there are two sets of the limiting plate (311), with the wavy sidewalls of the two sets of the limiting plate (311) arranged alternately.
4. The superhydrophobic self-cleaning photovoltaic glass according to claim 1, characterized in that: The end face of the movable plate (306) is provided with a water outlet, and several sets of water outlets are provided.
5. The superhydrophobic self-cleaning photovoltaic glass according to claim 1, characterized in that: The top end face of the limiting plate (311) is fixedly connected to a vertical plate (5). The side wall of the vertical plate (5) is provided with a lower guide rail (6) and an upper guide rail (7). The lower guide rail (6) and the upper guide rail (7) are connected at both ends. The side wall of the upper guide rail (7) is hinged with a hinge plate (8).
6. The superhydrophobic self-cleaning photovoltaic glass according to claim 1, characterized in that: The connector (304) is fixedly connected to the crossbar (9), the crossbar (9) is slidably connected to the upper guide rail (7), and the crossbar (9) is slidably connected to the lower guide rail (6).
Citation Information
Patent Citations
Super-hydrophobic self-cleaning photovoltaic glass and solar cell
CN220502928U