Automatic cleaning device for photovoltaic panel

Abstract

The utility model discloses an automatic cleaning device for a photovoltaic panel, and relates to the technical field of photovoltaic panel cleaning, the automatic cleaning device for the photovoltaic panel comprises a support, a photovoltaic panel is fixedly installed on the top of the support, a cleaning box is arranged on the top of the photovoltaic panel, a rolling brush is rotatably installed in the cleaning box, and a brush head is installed on the rolling brush. Mounting plates are arranged on the left side and the right side of the cleaning box correspondingly, rubber scrapers are fixedly connected to one sides of the bottoms of the two mounting plates correspondingly, a plurality of nozzles are fixedly connected to the other sides of the bottoms of the two mounting plates correspondingly, two second fixing blocks are fixedly connected to the top of the cleaning box, and connecting rods are hinged to the tops of the two second fixing blocks correspondingly; third fixing blocks are arranged at the two ends of the two connecting rods correspondingly. According to the automatic cleaning device for the photovoltaic panel, in the working process of the rolling brush, the rubber scraper on one side always scrapes the surface of the brushed photovoltaic panel, meanwhile, a large amount of water is prevented from remaining on the surface of the cleaned photovoltaic panel, and the cleaning efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic panel cleaning, in particular to an automatic cleaning device for photovoltaic panels. Background Art

[0002] Solar power generation is based on the photovoltaic effect, using solar cells to receive solar radiation and convert it into electricity. When the surface of solar photovoltaic panels is contaminated with dust or other debris, they need to be cleaned to ensure stable power generation efficiency.

[0003] Existing methods for cleaning photovoltaic panels primarily rely on manual cleaning and spraying. Manual cleaning requires mopping the panels with a handheld mop to scrub away dirt and dust, which is labor-intensive and inefficient. Spraying effectively removes dust, but struggles to remove surface dirt like bird droppings. Furthermore, the efficiency of photovoltaic panels can be reduced by the accumulation of water droplets or film. Excessive water spraying can block some solar energy, reducing the efficiency of light energy conversion and wasting water resources. Prolonged water coverage of the panel surface can cause hot spots, a localized overheating phenomenon that can also damage the panels. Summary of the Invention

[0004] The purpose of the utility model is to provide an automatic cleaning device for photovoltaic panels to solve the problems in the prior art of low cleaning efficiency of photovoltaic panels and easy damage to the photovoltaic panels caused by the surface of the photovoltaic panels being covered with water for a long time.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: an automatic cleaning device for photovoltaic panels, comprising a bracket, a photovoltaic panel is fixedly mounted on the top of the bracket, a cleaning box is provided on the top of the photovoltaic panel, a rolling brush is rotatably installed inside the cleaning box, mounting plates are provided on the left and right sides of the cleaning box, a rubber scraper is fixedly connected to one side of the bottom of the two mounting plates, a plurality of nozzles are fixedly connected to the other side of the bottom of the two mounting plates, and the plurality of nozzles are distributed in a linear array at the bottom of the two mounting plates, two second fixed blocks are fixedly connected to the top of the cleaning box, the tops of the two second fixed blocks are hinged with connecting rods, third fixed blocks are provided at both ends of the two connecting rods, second sliding rods are fixedly connected inside the four third fixed blocks, first sliding grooves are provided at both ends of the two connecting rods, and the four second sliding rods are slidably connected to the inside of the four first sliding grooves respectively.

[0006] Preferably, a gear is rotatably installed on one side of the third fixed block, a rack is meshedly connected to the outer side of the gear, a first limit block is fixedly connected to the top of one side of the third fixed block, the rack passes through the first limit block and is slidably connected to the first limit block, and a pull rod is rotatably connected to one side of the gear.

[0007] Preferably, the bottom end of one side of the third fixed block is fixedly connected to the second limit block, a clamping block is provided on one side of the second limit block, and a first sliding rod is fixedly connected to one side of the clamping block. One end of the first sliding rod passes through the second limit block and is slidably connected to the second limit block. A spring is sleeved on the outside of the second limit block, and both ends of the spring are fixedly connected to the clamping block and the second limit block respectively, and the top of the clamping block is hinged to the pull rod.

[0008] Preferably, a square tube is fixedly connected to one side of the top of the two mounting plates, one end of the multiple nozzles respectively passes through the two mounting plates, one end of the multiple nozzles respectively passes through the two square tubes and is fixedly connected to the two square tubes, the tops of the two square tubes are respectively fixedly connected to the two third fixed blocks on the same side, a solenoid valve is fixedly connected to one side of the top of the cleaning box, the solenoid valve is connected to the two square tubes through water pipes, four third limit blocks are fixedly connected to the top of the cleaning box, one side of the four third limit blocks are respectively provided with a slot, the four slots are respectively adapted to the four blocks, a drive motor is fixedly connected to one side of the cleaning box, the output end of the drive motor is fixedly connected to the rolling brush, two press switches are fixedly connected to one end of the top of the cleaning box, the two press switches correspond to the two square tubes respectively, and are limited by the third limit block, so that when the cleaning box is in operation, one side of the rubber scraper is always in contact with the photovoltaic panel to scrape off the sewage on the surface of the photovoltaic panel, thereby improving the cleaning efficiency of the device and preventing a large amount of water from remaining on the surface of the photovoltaic panel after cleaning, resulting in a hot spot effect and damage to the photovoltaic panel.

[0009] Preferably, a plurality of second sliders are fixedly connected to the opposite sides of the two mounting plates, a plurality of second slide grooves are opened on both sides of the cleaning box, and the plurality of second sliders are respectively slidably connected to the inside of the second slide grooves, and the opposite sides of the two mounting plates are both in contact with the cleaning box.

[0010] Preferably, guide plates are fixedly connected to both sides of the top of the bracket, and the opposite sides of the two guide plates are in contact with the photovoltaic panels. The two guide plates are fixedly connected to the sides away from the photovoltaic panels, and the two baffles correspond to two connecting rods respectively. When the cleaning box moves to one of the guide plates, the corresponding connecting rods and baffles contact each other, and one end of the connecting rod rises and the other end falls, so that when the cleaning box moves left and right, one of the rubber scrapers always scrapes the cleaned photovoltaic panel.

[0011] Preferably, the bottom of the rolling brush fits with the photovoltaic panel, and the four corners of the top of the bracket are fixedly connected to the first fixed blocks, and the four first fixed blocks are rotatably installed with threaded rods between each other, and the outer sides of the two threaded rods are threadedly connected to the first slider, and one side of the two first sliders is fixedly connected to the cleaning box, and one side of the two first fixed blocks on the same side is fixedly connected to the forward and reverse motors, and the output ends of the two forward and reverse motors are respectively fixedly connected to the two threaded rods, and the photovoltaic panel after spraying is cleaned by the rolling brush.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. When the cleaning box of the present application moves left or right to the top of one of the guide plates, the rack on one side of the cleaning box contacts the baffle, causing the card block to leave the inside of the third limit block slot. The baffle flips the connecting rod, so that when the cleaning box is working, there is always a rubber scraper on one side in contact with the photovoltaic panel to scrape off the sewage on the surface of the photovoltaic panel, thereby improving the cleaning efficiency of the device and preventing a large amount of water from remaining on the surface of the photovoltaic panel after cleaning, causing a hot spot effect and damaging the photovoltaic panel.

[0014] 2. The solenoid valve of this application controls the nozzles on both sides of the cleaning box. When the cleaning box moves, the photovoltaic panels on the front side of the cleaning box are sprayed, and the roller brush cleans the photovoltaic panels after spraying, thereby improving the cleaning efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cleaning box structure of the utility model;

[0017] Figure 3 This is a cross-sectional view of the cleaning box structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the third fixing block of the utility model;

[0019] Figure 5 This is a schematic diagram of the bottom structure of the cleaning box of the utility model;

[0020] Figure 6 This is a schematic diagram of the connecting rod structure of the utility model.

[0021] Numbers in the figure: 1. bracket; 2. photovoltaic panel; 3. cleaning box; 4. baffle; 5. first slider; 6. threaded rod; 7. first fixed block; 8. guide plate; 9. push switch; 10. roller brush; 11. mounting plate; 12. square tube; 13. solenoid valve; 14. rubber scraper; 15. second fixed block; 16. connecting rod; 17. third fixed block; 18. gear; 19. first limit block; 20. rack; 21. pull rod; 22. first slider; 23. second limit block; 24. spring; 25. block; 26. third limit block; 27. second slider; 28. nozzle; 29. ​​second slider. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example: Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the utility model provides a technical solution of an automatic cleaning device for photovoltaic panels, including a bracket 1, a photovoltaic panel 2 is fixedly installed on the top of the bracket 1, a cleaning box 3 is provided on the top of the photovoltaic panel 2, a roller brush 10 is rotatably installed inside the cleaning box 3, mounting plates 11 are provided on the left and right sides of the cleaning box 3, a rubber scraper 14 is fixedly connected to one side of the bottom of the two mounting plates 11, a plurality of nozzles 28 are fixedly connected to the other side of the bottom of the two mounting plates 11, and the plurality of nozzles 28 are distributed in a linear array at the bottom of the two mounting plates 11, two second fixed blocks 15 are fixedly connected to the top of the cleaning box 3, a connecting rod 16 is hinged on the top of the two second fixed blocks 15, a third fixed block 17 is provided at both ends of the two connecting rods 16, a second sliding rod 29 is fixedly connected inside the four third fixed blocks 17, and a first sliding groove is provided at both ends of the two connecting rods 16 , the four second sliding rods 29 are respectively slidably connected to the inside of the four first sliding grooves, and a gear 18 is rotatably installed on one side of the third fixed block 17, and the outer side of the gear 18 is meshed with a rack 20, and the top of one side of the third fixed block 17 is fixedly connected to the first limit block 19, and the rack 20 passes through the first limit block 19 and is slidably connected to the first limit block 19. One side of the gear 18 is rotatably connected to the pull rod 21, and the bottom end of one side of the third fixed block 17 is fixedly connected to the second limit block 23, and a clamping block 25 is provided on one side of the second limit block 23, and one side of the clamping block 25 is fixedly connected to the first sliding rod 22, and one end of the first sliding rod 22 passes through the second limit block 23 and is slidably connected to the second limit block 23, and a spring 24 is sleeved on the outer side of the second limit block 23, and both ends of the spring 24 are fixedly connected to the clamping block 25 and the second limit block 23 respectively. The top of the clamping block 25 is hinged to the pull rod 21.

[0024] like Figure 3 , Figure 4 and Figure 5As shown, one side of the top of the two mounting plates 11 is fixedly connected to a square tube 12, one end of the multiple nozzles 28 respectively penetrates the two mounting plates 11, one end of the multiple nozzles 28 respectively penetrates the two square tubes 12 and is fixedly connected to the two square tubes 12, the tops of the two square tubes 12 are respectively fixedly connected to the two third fixing blocks 17 on the same side, the top of the cleaning box 3 is fixedly connected to a solenoid valve 13, the solenoid valve 13 is connected to the two square tubes 12 through a water pipe, the top of the cleaning box 3 is fixedly connected to four third limit blocks 26, one side of the four third limit blocks 26 is provided with a slot, the four The card slots are respectively adapted to the four card blocks 25. A driving motor is fixedly connected to one side of the cleaning box 3. The output end of the driving motor is fixedly connected to the rolling brush 10. Two press switches 9 are fixedly connected to one end of the top of the cleaning box 3. The two press switches 9 correspond to the two square tubes 12 respectively. The card block 25 is limited by the third limit block 26, so that when the cleaning box 3 is working, there is always a rubber scraper 14 on one side in contact with the photovoltaic panel 2 to scrape off the sewage on the surface of the photovoltaic panel 2, thereby improving the cleaning efficiency of the device and preventing a large amount of water from remaining on the surface of the photovoltaic panel 2 after cleaning, resulting in a hot spot effect and damage to the photovoltaic panel 2.

[0025] like Figure 1 , Figure 2 and Figure 4 As shown, the two mounting plates 11 are fixedly connected to a plurality of second sliders 27 on opposite sides, and the cleaning box 3 is provided with a plurality of second slide grooves on both sides. The plurality of second sliders 27 are respectively slidably connected to the inside of the second slide grooves. The two mounting plates 11 are fitted with the cleaning box 3 on opposite sides, and the top of the bracket 1 is fixedly connected with guide plates 8 on both sides. The two guide plates 8 are fitted with the photovoltaic panel 2 on opposite sides, and the two guide plates 8 are fixedly connected with a baffle 4 on the side away from the photovoltaic panel 2. The two baffles 4 correspond to the two connecting rods 16 respectively. When the cleaning box 3 moves to one of the guide plates 8, the two baffles 4 correspond to each other. The connecting rod 16 is in contact with the baffle 4, and one end of the connecting rod 16 rises and the other end falls, so that when the cleaning box 3 moves left and right, one of the rubber scrapers 14 always scrapes the photovoltaic panel 2 after cleaning. The bottom of the roller brush 10 is in contact with the photovoltaic panel 2, and the four corners of the top of the bracket 1 are fixedly connected to the first fixed block 7. The four first fixed blocks 7 are rotatably installed with threaded rods 6 between each other, and the outer sides of the two threaded rods 6 are threadedly connected to the first slider 5. One side of the two first sliders 5 is fixedly connected to the cleaning box 3, and one side of the two first fixed blocks 7 on the same side is fixedly connected to the forward and reverse motors, two of the forward and reverse motors.

[0026] When the utility model is in use: when it starts working, the two forward and reverse motors work to drive the two threaded rods 6 to rotate. The rotation of the threaded rod 6 causes the first slider 5 connected to the outer thread of the threaded rod 6 to move horizontally to the left. The movement of the two first sliders 5 drives the cleaning box 3 to move. When the cleaning box 3 moves to the left to the top of the guide plate 8 on the left side of the photovoltaic panel 2, the rack 20 on the left side of the cleaning box 3 contacts the baffle 4. At this time, the rack 20 moves in the direction of the cleaning box 3, and the rack 20 drives the gear 18 to rotate. The rotation of the gear 18 pulls the pull rod 21 to move toward the second limit block 23, and the pull rod 21 drives the card block 25 to move. The block 25 is disengaged from the slot of the third limit block 26, and the cleaning box 3 continues to move so that the connecting rod 16 also contacts the baffle 4. The baffle 4 is provided with a downwardly inclined inclined surface. At this time, the connecting rod 16 is flipped downward with the hinge with the second fixed block 15 as the axis, so the right end of the connecting rod 16 is flipped upward, and the block 25 is fitted with the cleaning box 3 and the third limit block 26 under the action of the spring 24. When the right end of the connecting rod 16 is flipped upward, the block 25 located on the right side of the cleaning box 3 enters the slot of the third limit block 26 under the action of the spring 24, limiting the third fixed block 17 and the connecting rod 16.

[0027] The push switch 9 on the left side of the cleaning box 3 corresponds to the square tube 12 on the left side of the cleaning box 3. The push switch 9 is connected to the solenoid valve 13 through an electrical signal. The solenoid valve 13 that controls the direction of water flow is a valve device with three ports (one inlet and two outlets). There is a valve core inside the solenoid valve 13. When the valve core is in different positions, the outlets are different. The direction of water flow is controlled by changing the position of the valve core. The solenoid valve 13 is an existing mature technology and will not be described in detail here. When the square tube 12 on the right side of the cleaning box 3 rises, the square tube 12 on the right side of the cleaning box 3 presses the push switch 9 on the right side of the cleaning box 3. A water inlet pipe is connected to one side of the solenoid valve 13. At this time, the solenoid valve 13 causes water to flow to the square tube 12 on the right side of the cleaning box 3, and then flows from the square tube 12 into the multiple nozzles 28 fixedly connected at the bottom of the square tube 12, and the surface of the photovoltaic panel 2 is rinsed through the nozzles 28. Then the driving motor starts to drive the roller brush 10 to rotate, and then the cleaning box 3 moves to the right, and the roller brush 10 washes the part of the top of the photovoltaic panel 2 that has been rinsed, thereby improving the cleaning effect of the photovoltaic panel 2. At the same time, the rubber scraper 14 on the left side of the cleaning box 3 is in contact with the photovoltaic panel 2 to scrape the cleaned photovoltaic panel 2, and water flows out of the top of the photovoltaic panel 2 along the inclined surface of the photovoltaic panel 2. When the cleaning box 3 moves to the top of the guide plate 8 on the right side of the bracket 1, the rubber scraper 14 will scrape the stains that follow the movement of the rubber scraper 14 into the inside of the guide plate 8, and flow out along the inclined surface of the guide plate 8 for collection, preventing water stains and large amounts of water from staying on the top of the photovoltaic panel 2. At the same time, when the roller brush 10 is working, the sewage will not be thrown onto the surface of the cleaned photovoltaic panel 2 by the rotation of the roller brush 10, thereby improving the working efficiency of the photovoltaic panel 2.

[0028] When the cleaning box 3 moves to the top of the guide plate 8 on the right side of the bracket 1, the rack 20 on the right side of the cleaning box 3 contacts the baffle 4, pushing the rack 20 to move, so that the block 25 disengages from the inside of the third limit block 26, and the connecting rod 16 flips over, and the square tube 12 on the right side of the connecting rod 16 descends, and the square tube 12 on the left side of the connecting rod 16 rises and presses the press switch 9 on the left side of the cleaning box 3, and then presses the switch 9 to control the solenoid valve 13 to work, and the solenoid valve 13 allows water to flow to the square tube 12 on the left side of the cleaning box 3 to spray the photovoltaic panel 2, and the two forward and reverse motors reverse to make the cleaning box 3 move to the left and repeat the previous cleaning movement.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An automatic cleaning device for a photovoltaic panel, comprising a bracket (1), a photovoltaic panel (2) fixedly mounted on the top of the bracket (1), and a cleaning box (3) provided on the top of the photovoltaic panel (2), characterized in that: A roller brush (10) is rotatably installed inside the cleaning box (3), and mounting plates (11) are provided on both the left and right sides of the cleaning box (3). A rubber scraper (14) is fixedly connected to one side of the bottom of the two mounting plates (11), and a plurality of nozzles (28) are fixedly connected to the other side of the bottom of the two mounting plates (11). The plurality of nozzles (28) are distributed in a linear array at the bottom of the two mounting plates (11). Two second fixed blocks (15) are fixedly connected to the top of the cleaning box (3), and the tops of the two second fixed blocks (15) are hinged with connecting rods (16). Both ends of the two connecting rods (16) are provided with third fixed blocks (17), and the insides of the four third fixed blocks (17) are fixedly connected with second slide rods (29), and both ends of the two connecting rods (16) are provided with first slide grooves, and the four second slide rods (29) are slidably connected to the insides of the four first slide grooves.

2. The automatic cleaning device for photovoltaic panels according to claim 1, characterized in that: A gear (18) is rotatably mounted on one side of the third fixed block (17), and a rack (20) is meshedly connected to the outside of the gear (18). A first limit block (19) is fixedly connected to the top of one side of the third fixed block (17), and the rack (20) passes through the first limit block (19) and is slidably connected to the first limit block (19). A pull rod (21) is rotatably connected to one side of the gear (18).

3. The automatic cleaning device for photovoltaic panels according to claim 2, characterized in that: The bottom end of one side of the third fixed block (17) is fixedly connected to the second limit block (23), and a clamping block (25) is provided on one side of the second limit block (23). One side of the clamping block (25) is fixedly connected to the first slide bar (22). One end of the first slide bar (22) passes through the second limit block (23) and is slidably connected to the second limit block (23). A spring (24) is sleeved on the outside of the second limit block (23), and the two ends of the spring (24) are fixedly connected to the clamping block (25) and the second limit block (23) respectively. The top of the clamping block (25) is hinged to the pull rod (21).

4. The automatic cleaning device for photovoltaic panels according to claim 3, characterized in that: The top side of the two mounting plates (11) is fixedly connected to a square tube (12), one end of the plurality of nozzles (28) respectively penetrates the two mounting plates (11), one end of the plurality of nozzles (28) respectively penetrates the two square tubes (12) and is fixedly connected to the two square tubes (12), the top of the two square tubes (12) is respectively fixedly connected to two third fixing blocks (17) on the same side, and the top side of the cleaning box (3) is fixedly connected to a solenoid valve (13), and the solenoid valve (13) is respectively connected to the two square tubes through a water pipe. (12) are connected, four third limit blocks (26) are fixedly connected to the top of the cleaning box (3), and a card slot is opened on one side of the four third limit blocks (26), and the four card slots are respectively adapted to the four card blocks (25), and a driving motor is fixedly connected to one side of the cleaning box (3), and the output end of the driving motor is fixedly connected to the roller brush (10), and two press switches (9) are fixedly connected to one end of the top of the cleaning box (3), and the two press switches (9) correspond to the two square tubes (12) respectively.

5. The automatic cleaning device for photovoltaic panels according to claim 1, characterized in that: A plurality of second sliders (27) are fixedly connected to opposite sides of the two mounting plates (11), a plurality of second slide grooves are provided on both sides of the cleaning box (3), and the plurality of second sliders (27) are respectively slidably connected to the inside of the second slide grooves, and the opposite sides of the two mounting plates (11) are in contact with the cleaning box (3).

6. The automatic cleaning device for photovoltaic panels according to claim 1, characterized in that: Guide plates (8) are fixedly connected to both sides of the top of the bracket (1), and opposite sides of the two guide plates (8) are in contact with the photovoltaic panel (2). The sides of the two guide plates (8) away from the photovoltaic panel (2) are fixedly connected to baffles (4), and the two baffles (4) correspond to the two connecting rods (16) respectively.

7. The automatic cleaning device for photovoltaic panels according to claim 1, characterized in that: The bottom of the rolling brush (10) fits with the photovoltaic panel (2), and the four corners of the top of the bracket (1) are fixedly connected to the first fixed blocks (7), and the four first fixed blocks (7) are rotatably installed with threaded rods (6) between each other, and the outer sides of the two threaded rods (6) are threadedly connected to the first sliders (5), and one side of the two first sliders (5) is fixedly connected to the cleaning box (3), and one side of the two first fixed blocks (7) on the same side is fixedly connected to the forward and reverse motors, and the output ends of the two forward and reverse motors are respectively fixedly connected to the two threaded rods (6).

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