Self-cleaning photovoltaic support

Abstract

The utility model relates to the technical field of photovoltaic supports, in particular to a self-cleaning photovoltaic support, which comprises a water circulation tank. The photovoltaic panel comprises a water circulation box, and further comprises supporting rods, a mounting square frame, a photovoltaic panel body, a driving strip, a brush, a supporting plate, a mounting plate, an electric telescopic rod, a connecting plate and a water absorption sponge, the rear side of the top of the water circulation box is provided with four supporting rods with different lengths at equal intervals, and the top ends of the four supporting rods are provided with the mounting square frame; a photovoltaic panel body is fixed to the inner side of the mounting square frame through bolts, and a driving strip is arranged on the rear side of the upper portion of the mounting square frame. After water spraying is stopped, the electric telescopic rod drives the connecting plate to move downwards, the connecting plate drives the water absorption sponge to move downwards till the water absorption sponge is attached to the surface of the photovoltaic panel body, and at the moment, the driving strip drives the water absorption sponge to move front and back on the surface of the photovoltaic panel body; the cleaning liquid on the surface of the photovoltaic panel body is adsorbed through the characteristics of the water-absorbing sponge, and it is guaranteed that no liquid is accumulated on the surface of the photovoltaic panel body.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic support technology, and in particular to a self-cleaning photovoltaic support. Background Technology

[0002] As the name suggests, a photovoltaic (PV) support structure is used to support PV panels. Many rural rooftops are equipped with solar PV panels, which convert solar energy into electricity, thereby reducing electricity costs. However, in actual use, debris often accumulates on the surface of the PV panels, drastically reducing their solar energy absorption efficiency. Therefore, regular manual cleaning is necessary to restore the PV panels to their optimal condition. Cleaning requires spraying a cleaning solution onto the PV panel surface. However, if the cleaning solution is exposed to room temperature for a long time, it will freeze on the PV panel surface. The ice on the PV panel will cause light refraction, affecting direct sunlight. At the same time, the ice will affect the temperature of the PV panel, thus affecting power generation efficiency. Therefore, it is necessary to clean the PV panel of any remaining cleaning solution.

[0003] Common self-cleaning photovoltaic (PV) brackets only include the self-cleaning function, which can automatically clean the PV panels on the bracket. However, they lack the function of preventing liquid accumulation and freezing. They cannot guarantee that the cleaning liquid will not remain on the surface of the PV panels. In low-temperature environments, the cleaning liquid residue on the surface of the PV panels may freeze, thus affecting the PV conversion efficiency.

[0004] Therefore, to address the lack of anti-liquid accumulation and icing function in the aforementioned self-cleaning photovoltaic brackets, a self-cleaning photovoltaic bracket can be designed. After water spraying stops, the connecting plate is driven downward by an electric telescopic rod, which in turn moves the absorbent sponge downward until the absorbent sponge is in contact with the surface of the photovoltaic panel. At this point, the drive bar moves the absorbent sponge back and forth on the surface of the photovoltaic panel, using the properties of the absorbent sponge to absorb the cleaning liquid on the surface of the photovoltaic panel, ensuring that no liquid accumulates on the surface of the photovoltaic panel. Utility Model Content

[0005] To overcome the problem that common self-cleaning photovoltaic brackets lack the function of preventing liquid accumulation and freezing, and cannot guarantee that cleaning fluid will not remain on the surface of the photovoltaic panel, the cleaning fluid may freeze on the surface of the photovoltaic panel in low-temperature environments, thus affecting the photovoltaic conversion efficiency.

[0006] The technical solution of this utility model is as follows: a self-cleaning photovoltaic bracket, including a water circulation tank; it also includes support rods, a mounting frame, a photovoltaic panel body, a drive bar, a brush, a support plate, a mounting plate, an electric telescopic rod, a connecting plate, and an absorbent sponge. Four support rods of different lengths are evenly spaced on the rear side of the top of the water circulation tank. The top of the four support rods is equipped with a mounting frame. The photovoltaic panel body is fixed to the inner side of the mounting frame by bolts. A drive bar is provided on the rear side of the upper part of the mounting frame. A brush is provided at the bottom of the drive bar. A support plate is provided on the top of the drive bar. A mounting plate is provided at the top front side of the support plate. An electric telescopic rod is provided at the center of the bottom of the mounting plate. A connecting plate is provided at the bottom end of the electric telescopic rod. An absorbent sponge is provided at the bottom of the connecting plate.

[0007] Preferably, after water spraying stops, the connecting plate is driven downward by the electric telescopic rod. The connecting plate then moves the absorbent sponge downward until it is in contact with the surface of the photovoltaic panel. At this point, the drive bar moves the absorbent sponge back and forth on the surface of the photovoltaic panel. The absorbent sponge absorbs the cleaning liquid on the surface of the photovoltaic panel, ensuring that no liquid accumulates on the surface of the photovoltaic panel. This solves the problem that common self-cleaning photovoltaic brackets only have a self-cleaning function, which can automatically clean the photovoltaic panels on the bracket, but lacks the function of preventing liquid accumulation and freezing. They cannot guarantee that the cleaning liquid will not remain on the surface of the photovoltaic panel, and in low-temperature environments, the cleaning liquid residue on the surface of the photovoltaic panel can freeze, thus affecting the photovoltaic conversion efficiency.

[0008] Preferably, a water inlet trough is provided on the front side of the top of the water circulation tank, and a debris collection drawer is provided at the top inside the water circulation tank, with a filter screen provided at the bottom inside the debris collection drawer.

[0009] Preferably, a water pump is installed in the middle of the bottom of the rear side of the water circulation tank. The input end of the water pump is connected to a water pumping pipe, and the output end of the water pumping pipe is connected to a water delivery hose. The front end of the water pumping pipe passes through the water circulation tank and is located at its internal bottom.

[0010] Preferably, a hollow drainage plate is provided in the middle of the rear side of the top of the mounting frame, and the end of the water supply hose away from the water pump is connected to the center of the rear side of the hollow drainage plate. Several drainage holes are provided at equal intervals on the front side of the hollow drainage plate.

[0011] Preferably, a first mounting block is provided at the left end of the rear side of the top of the mounting frame, and a second mounting block is provided at the left end of the front side of the top of the mounting frame. A motor is provided at the center of the rear side of the first mounting block, and a lead screw is connected to the output end of the front side of the motor. The front end of the lead screw passes through the first mounting block and the drive bar and is rotatably connected to the second mounting block.

[0012] Preferably, a third mounting block is provided at the right end of the rear side of the top of the mounting frame, and a fourth mounting block is provided at the right end of the front side of the top of the mounting frame. A sliding rod is provided between the third and fourth mounting blocks, and the sliding rod is slidably connected to the drive bar.

[0013] Preferably, several electric heating rods are arranged at equal intervals at the bottom front side of the water circulation tank.

[0014] The beneficial effects of this utility model are:

[0015] 1. After the water spraying stops, the connecting plate is driven downward by the electric telescopic rod. The connecting plate then moves the absorbent sponge downward until it is in contact with the surface of the photovoltaic panel. At this point, the drive bar moves the absorbent sponge back and forth on the surface of the photovoltaic panel. The absorbent sponge absorbs the cleaning liquid on the surface of the photovoltaic panel, ensuring that no liquid accumulates on the surface of the photovoltaic panel. This solves the problem that common self-cleaning photovoltaic brackets only have a self-cleaning function, which can automatically clean the photovoltaic panels on the bracket, but lacks the function of preventing liquid accumulation and freezing. They cannot guarantee that the cleaning liquid will not remain on the surface of the photovoltaic panel. In low-temperature environments, the cleaning liquid residue on the surface of the photovoltaic panel may freeze, thus affecting the photovoltaic conversion efficiency. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of the self-cleaning photovoltaic support of this utility model.

[0017] Figure 2 The diagram shown is a cross-sectional view of the self-cleaning photovoltaic support structure of this utility model.

[0018] Figure 3 The diagram shown is a schematic representation of the structure of the water circulation tank of the self-cleaning photovoltaic bracket of this utility model.

[0019] Figure 4 The diagram shown is a schematic representation of the self-cleaning photovoltaic bracket debris collection drawer of this utility model.

[0020] Figure 5 The diagram shown is a bottom view of the self-cleaning photovoltaic support cleaning component of this utility model.

[0021] Figure 6 The diagram shown is a bottom view of the structure of the self-cleaning photovoltaic support water circulation component of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Water circulation tank; 2. Water inlet tank; 3. Debris collection drawer; 4. Water pump; 5. Water suction pipe; 6. Water delivery hose; 7. Support rod; 8. Mounting frame; 9. Hollow drainage board; 10. Drainage hole; 11. Filter screen; 12. Photovoltaic panel body; 13. First mounting block; 14. Second mounting block; 15. Motor; 16. Third mounting block; 17. Fourth mounting block; 18. Sliding rod; 19. Drive bar; 20. Brush; 21. Lead screw; 22. Electric heating rod; 23. Support plate; 24. Mounting plate; 25. Electric telescopic rod; 26. Connecting plate; 27. Absorbent sponge. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please see Figures 1-6 This utility model provides an embodiment of a self-cleaning photovoltaic bracket, which includes a water circulation tank 1; it also includes support rods 7, mounting frames 8, photovoltaic panel bodies 12, drive bars 19, brushes 20, support plates 23, mounting plates 24, electric telescopic rods 25, connecting plates 26, and absorbent sponges 27. Four support rods 7 of varying lengths are evenly spaced on the rear top of the water circulation tank 1. The top of each support rod 7 is fitted with a mounting frame 8, and the photovoltaic panel body 12 is bolted to the inner side of the mounting frame 8. A drive bar 19 is positioned on the rear top of the mounting frame 8, with a brush 20 at the bottom of the drive bar 19. A support plate 23 is positioned on the top of the drive bar 19, and a mounting plate 24 is positioned at the top front of the support plate 23. An electric telescopic rod 25 is positioned at the center of the bottom of the mounting plate 24, and a connecting plate 26 is positioned at the bottom of the electric telescopic rod 25. 6. A water-absorbing sponge 27 is provided at the bottom of the connecting plate 26. After the water spraying stops, the connecting plate 26 is driven to move downward by the electric telescopic rod 25. The connecting plate 26 then drives the water-absorbing sponge 27 to move downward until the water-absorbing sponge 27 is in contact with the surface of the photovoltaic panel body 12. At this time, the drive bar 19 drives the water-absorbing sponge 27 to move back and forth on the surface of the photovoltaic panel body 12. The water-absorbing sponge 27 absorbs the cleaning liquid on the surface of the photovoltaic panel body 12 through its properties, ensuring that the surface of the photovoltaic panel body 12 will not accumulate liquid. This solves the problem that common self-cleaning photovoltaic brackets only have the self-cleaning function, which can automatically clean the photovoltaic panels on the bracket, but lack the function of preventing liquid accumulation and freezing. They cannot guarantee that the cleaning liquid will not remain on the surface of the photovoltaic panel. In low-temperature environments, the cleaning liquid residue on the surface of the photovoltaic panel may freeze, thus affecting the photovoltaic conversion efficiency.

[0025] Please see Figures 2-6In this embodiment, a water inlet trough 2 is provided on the front side of the top of the water circulation tank 1. A debris collection drawer 3 is provided at the top inside the water circulation tank 1. A filter screen 11 is provided at the bottom inside the debris collection drawer 3. A water pump 4 is provided in the middle of the bottom of the rear side of the water circulation tank 1. A water pump 4 is connected to the input end of the front side of the water pump 4 and a water delivery hose 6 is connected to the output end of the rear side of the water pump 4. The front end of the water pump 5 passes through the water circulation tank 1 and is located at its bottom. A hollow drainage plate 9 is provided in the middle of the rear side of the top of the mounting frame 8. The end of the water delivery hose 6 away from the water pump 4 is connected to the center of the rear side of the hollow drainage plate 9. Several drainage holes 10 are provided at equal intervals on the front side of the hollow drainage plate 9. The water pump 4 draws out the cleaning liquid in the water circulation tank 1 through the water pump 5 and delivers it to the water delivery hose 6. The hose 6 delivers the cleaning fluid into the hollow drainage plate 9. The cleaning fluid inside the hollow drainage plate 9 is discharged to the surface of the photovoltaic panel body 12 through the drain hole 10. At the same time, the motor 15 drives the lead screw 21 to rotate back and forth. The lead screw 21, in cooperation with the slide rod 18, drives the drive bar 19 to move back and forth. When the drive bar 19 moves back and forth, it uses the brush 20 and the cleaning fluid to wash the surface of the photovoltaic panel body 12. The cleaning fluid and debris after washing fall down into the water circulation tank 1 through the water inlet 2. After being filtered by the filter screen 11, the debris is placed inside the debris collection drawer 3, while the cleaning fluid falls into the bottom of the water circulation tank 1. At the same time, the electric heating rod 22 heats the cleaning fluid, thereby completing the cleaning of the photovoltaic panel body 12.

[0026] Please see Figures 1-6In this embodiment, a first mounting block 13 is provided at the left end of the rear top of the mounting frame 8, and a second mounting block 14 is provided at the left end of the front top of the mounting frame 8. A motor 15 is provided at the center of the rear side of the first mounting block 13. A lead screw 21 is connected to the output end of the front side of the motor 15. The front end of the lead screw 21 passes through the first mounting block 13 and the drive bar 19 and is rotatably connected to the second mounting block 14. A third mounting block 16 is provided at the right end of the rear top of the mounting frame 8, and a fourth mounting block 17 is provided at the right end of the front top of the mounting frame 8. A sliding rod 18 is provided between the third mounting block 16 and the fourth mounting block 17. The sliding rod 18 is slidably connected to the drive bar 19. Electric heating rods 22 are provided at equal intervals at the bottom front side of the water circulation tank 1. Once the photovoltaic panel body 12 is cleaned, the water pump 4 stops operating, thus stopping the spraying of cleaning fluid. However, the motor 15 continues to operate normally. At this time, the connecting plate 26 is driven to move downwards via the electric telescopic rod 25. The connecting plate 26 then drives the absorbent sponge 27 to move downwards until the absorbent sponge 27 is in contact with the surface of the photovoltaic panel body 12. At this time, the drive bar 19 drives the absorbent sponge 27 to move back and forth on the surface of the photovoltaic panel body 12. Through the properties of the absorbent sponge 27, the cleaning fluid on the surface of the photovoltaic panel body 12 is absorbed, ensuring that no liquid accumulates on the surface of the photovoltaic panel body 12. This achieves the function of preventing liquid accumulation and freezing, preventing the cleaning fluid residue from freezing on the surface of the photovoltaic panel in low-temperature environments, which would affect the photovoltaic conversion efficiency.

[0027] During operation, the water pump 4 draws the cleaning fluid from the water circulation tank 1 through the water pipe 5 and delivers it to the hollow drainage plate 9 through the water hose 6. The cleaning fluid in the hollow drainage plate 9 is discharged to the surface of the photovoltaic panel body 12 through the drain hole 10. At the same time, the motor 15 drives the lead screw 21 to rotate back and forth. The lead screw 21, in cooperation with the slide rod 18, drives the drive bar 19 to move back and forth. When the drive bar 19 moves back and forth, it uses the brush 20 and the cleaning fluid to wash the surface of the photovoltaic panel body 12. The cleaning fluid and debris fall down through the water inlet 2 into the water circulation tank 1. After being filtered by the filter screen 11, the debris is placed inside the debris collection drawer 3, while the cleaning fluid falls into the water circulation tank. At the bottom of the box 1, the electric heating rod 22 heats the cleaning liquid to complete the cleaning of the photovoltaic panel body 12. After the photovoltaic panel body 12 is cleaned, the water pump 4 stops operating, thus stopping the spraying of cleaning liquid, but the motor 15 continues to operate normally. At this time, the electric telescopic rod 25 drives the connecting plate 26 to move downward, and the connecting plate 26 drives the water-absorbing sponge 27 to move downward until the water-absorbing sponge 27 is in contact with the surface of the photovoltaic panel body 12. At this time, the drive bar 19 drives the water-absorbing sponge 27 to move back and forth on the surface of the photovoltaic panel body 12. Through the properties of the water-absorbing sponge 27, the cleaning liquid on the surface of the photovoltaic panel body 12 is absorbed, ensuring that the surface of the photovoltaic panel body 12 will not accumulate liquid, thus achieving the function of preventing liquid accumulation and freezing.

[0028] After stopping the water spraying, the connecting plate 26 is moved downward by the electric telescopic rod 25. The connecting plate 26 then moves the absorbent sponge 27 downward until it is in contact with the surface of the photovoltaic panel body 12. At this time, the drive bar 19 moves the absorbent sponge 27 back and forth on the surface of the photovoltaic panel body 12. The absorbent sponge 27 absorbs the cleaning liquid on the surface of the photovoltaic panel body 12, ensuring that no liquid accumulates on the surface of the photovoltaic panel body 12. This solves the problem that common self-cleaning photovoltaic brackets only have a self-cleaning function, which can automatically clean the photovoltaic panels on the bracket, but lack the function of preventing liquid accumulation and freezing. They cannot guarantee that the cleaning liquid will not remain on the surface of the photovoltaic panel, and in low-temperature environments, the cleaning liquid residue on the surface of the photovoltaic panel can freeze, thus affecting the photovoltaic conversion rate.

Claims

1. A self-cleaning photovoltaic support, comprising a water circulation tank (1); characterized in that: It also includes support rods (7), mounting frames (8), photovoltaic panel body (12), drive bars (19), brushes (20), support plates (23), mounting plates (24), electric telescopic rods (25), connecting plates (26), and water-absorbing sponges (27). Four support rods (7) of different lengths are evenly spaced on the rear side of the top of the water circulation tank (1). The top of the four support rods (7) is equipped with mounting frames (8). The photovoltaic panel body is fixed to the inside of the mounting frames (8) by bolts. The body (12) has a drive bar (19) on the upper rear side of the mounting frame (8), a brush (20) on the bottom of the drive bar (19), a support plate (23) on the top of the drive bar (19), a mounting plate (24) on the top front side of the support plate (23), an electric telescopic rod (25) on the center of the bottom of the mounting plate (24), a connecting plate (26) on the bottom end of the electric telescopic rod (25), and a water-absorbing sponge (27) on the bottom of the connecting plate (26).

2. The self-cleaning photovoltaic support according to claim 1, characterized in that: A water inlet trough (2) is provided on the front side of the top of the water circulation tank (1). A debris collection drawer (3) is provided at the top inside the water circulation tank (1). A filter screen (11) is provided at the bottom inside the debris collection drawer (3).

3. The self-cleaning photovoltaic support according to claim 1, characterized in that: A water pump (4) is installed in the middle of the bottom of the rear side of the water circulation tank (1). The input end of the water pump (4) is connected to a water pumping pipe (5). The output end of the water pumping pipe (5) is connected to a water delivery hose (6). The front end of the water pumping pipe (5) passes through the water circulation tank (1) and is placed at its bottom.

4. The self-cleaning photovoltaic support according to claim 1, characterized in that: A hollow drainage plate (9) is installed in the middle of the back side of the top of the mounting frame (8). The end of the water supply hose (6) away from the water pump (4) is connected to the center of the back side of the hollow drainage plate (9). Several drainage holes (10) are opened at equal intervals on the front side of the hollow drainage plate (9).

5. The self-cleaning photovoltaic support according to claim 1, characterized in that: A first mounting block (13) is provided at the left end of the rear side of the top of the mounting frame (8), and a second mounting block (14) is provided at the left end of the front side of the top of the mounting frame (8). A motor (15) is provided at the center of the rear side of the first mounting block (13). A lead screw (21) is connected to the output end of the front side of the motor (15). The front end of the lead screw (21) passes through the first mounting block (13) and the drive bar (19) and is rotatably connected to the second mounting block (14).

6. The self-cleaning photovoltaic support according to claim 1, characterized in that: A third mounting block (16) is provided at the right end of the rear top of the mounting frame (8), and a fourth mounting block (17) is provided at the right end of the front top of the mounting frame (8). A slide rod (18) is provided between the third mounting block (16) and the fourth mounting block (17), and the slide rod (18) is slidably connected to the drive bar (19).

7. The self-cleaning photovoltaic support according to claim 1, characterized in that: Several electric heating rods (22) are evenly spaced at the bottom of the front side of the water circulation tank (1).

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