Photovoltaic device with self-cleaning function

Abstract

The invention discloses a photovoltaic device with a self-cleaning function, which comprises a wall body and a photovoltaic panel, and is characterized in that a driving wheel is mounted on a sliding seat; a first swing arm and a second swing arm are rotationally connected into the two notch grooves correspondingly, a cleaning brush is fixedly arranged at the bottom of the first swing arm, and a scraping strip is fixedly arranged at the bottom of the second swing arm. A water dripping component is arranged in the through groove, a wiping towel is fixedly arranged at the outer end of the belt, and a driving motor is installed at the outer end of the shell cover. According to the photovoltaic panel cleaning device, firstly, the photovoltaic panels distributed in rows are continuously cleaned one by one by controlling the first swing arm and the second swing arm to rotate in a reciprocating mode and controlling the wiping towel to rotate circularly, the cleaning cost is reduced while the cleaning efficiency of the photovoltaic panels is improved, secondly, the wiping towel is moistened through the arrangement of the water dripping component, and the cleaning efficiency is improved. The water consumption can be reduced, damage to the surface of the photovoltaic panel caused by flushing in a traditional mode is avoided, and energy-saving cleaning of the photovoltaic panel is achieved on the premise that the safety of the photovoltaic panel is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic panels, and in particular to a photovoltaic device with a self-cleaning function. Background Art

[0002] Photovoltaic panels are made up of multiple solar cells that use the photovoltaic effect to convert sunlight into electricity. When sunlight strikes a solar cell, photons transfer energy to the semiconductor material, freeing electrons from their atomic bonds and generating an electric current. This process is called the photoelectric effect, and the resulting current is then used to generate electricity.

[0003] The increasing demand for renewable energy is one of the main forces driving the development of rooftop solar installations, reducing electricity costs for businesses and residents who rely on fuel-fired power generation. When solar panels are installed in rows on rooftops to collect sunlight, dust, dirt, and other contaminants adhering to the panels reduce the transmittance of sunlight, affecting the panels' photoelectric conversion efficiency and, consequently, the power generation of the power station. Furthermore, long-term accumulation of dirt can corrode the panels' surfaces, affecting their mechanical strength and electrical performance, thereby shortening their service life. Uneven distribution of dirt can also cause localized heating of the panels, creating a hot spot effect. This not only reduces power generation but can also damage the panels. Therefore, regular cleaning of the rows of panels on rooftops is essential.

[0004] Traditional photovoltaic panel cleaning usually adopts manual cleaning, which is not efficient. The cleaning area per person per day is limited. As labor costs increase, cleaning costs are also rising. In addition, the existing technology of manual cleaning is not enough to truly solve the energy efficiency problem of photovoltaic power stations, and the cost is not low. During manual cleaning, improper water pressure control may cause damage to the photovoltaic panels, which is not conducive to the safe and efficient cleaning of photovoltaic panels installed on a large scale on the roof.

[0005] In view of the above-mentioned drawbacks, a photovoltaic device with a self-cleaning function is provided. Summary of the Invention

[0006] The purpose of the present invention is to solve the above problems and to propose a photovoltaic device with a self-cleaning function.

[0007] To achieve the above-mentioned object, the present invention adopts the following technical solution: a photovoltaic device with a self-cleaning function, comprising a wall and a photovoltaic panel mounted on the wall, wherein a slide rail is fixedly provided on the top of the wall on both sides of the photovoltaic panel, a slide seat is slidably connected to the outer side of the slide rail, and a drive wheel is installed on the slide seat to drive the slide seat to move along the slide rail;

[0008] The interior of the slide is formed with two notches and a through slot located between the two notches, and a first swing arm and a second swing arm are rotatably connected to the two notches respectively, a cleaning brush is fixedly provided at the bottom of the first swing arm, and a scraper is fixedly provided at the bottom of the second swing arm, a shell cover is fixedly provided at the outer end of the slide, an incomplete gear is rotatably connected to the shell cover, and a transmission member is provided on the slide, and when the incomplete gear rotates, the first swing arm and the second swing arm rotate back and forth under the action of the transmission member;

[0009] A dripping member is provided in the through groove, the inner side of the shell cover is rotatably connected to a pulley, the outer transmission sleeves of the two pulleys are provided with a belt, the outer end of the belt is fixed with a wiping towel passing through the through groove, the outer end of the shell cover is installed with a driving motor for controlling the rotation of the pulley, and the outer end of the shell cover is installed with a chain transmission mechanism for driving the pulley and the incomplete gear to rotate synchronously.

[0010] Preferably, the transmission member includes two rotary sleeves rotatably connected to the slide, the slide is formed with a channel for rotating the rotary sleeves, and a component for driving the two rotary sleeves to rotate synchronously, and the upper ends of the first swing arm and the second swing arm are coaxially fixed with a vertical rod slidably connected to the rotary sleeves.

[0011] Preferably, a support rod is fixedly provided on the side end of the vertical rod, and a sliding groove for sliding through the support rod is formed on the side wall of the rotary sleeve.

[0012] Preferably, a compression spring is embedded in the notch and is distributed vertically with the vertical rod. A magnetic block is also fixed in the notch. A guide groove is formed on the side wall of the channel to cooperate with the sliding of the support rod. The guide groove consists of two transverse grooves and two vertical grooves connecting the transverse grooves.

[0013] Preferably, the component that drives the two rotary sleeves to rotate synchronously includes a sliding arm slidably connected to the top of the slide, and a joint that drives the sliding arm to move back and forth. Support arms are fixed at both ends of the sliding arm, and a slider is slidably connected to the outer side of the support arm. Two rotary arms that are coaxially fixed with the rotary sleeves are rotatably connected to the slide, and the free end of the rotary arm is rotatably connected to the slider.

[0014] Preferably, the component that drives the sliding arm to move back and forth includes an N-shaped frame that slides vertically in the shell cover, and racks that engage with incomplete gears are formed on two oppositely distributed inner walls of the N-shaped frame. As the incomplete gear rotates, it alternately engages with the two oppositely distributed racks, driving the N-shaped frame to move back and forth in the vertical direction. A support arm is rotatably connected between the sliding arm and the N-shaped frame.

[0015] Preferably, the dripping member comprises a drainage chamber fixed in the through groove, a dripping nozzle for dripping water onto the wipe is installed at the bottom of the drainage chamber, and a water tank for supplying water to the drainage chamber through a pump body is installed on the slide.

[0016] Preferably, the chain transmission mechanism includes two sprockets rotatably connected to the outside of the housing, one of the sprockets is coaxially fixed to the incomplete gear, and the other sprocket is coaxially fixed to the pulley, and the outer engaging sleeves of the two sprockets are provided with chains.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0018] 1. In the present application, when the two slides move along the slide rails, the first swing arm and the second swing arm are controlled to rotate back and forth. At the same time, the wiping towel cleans the sticky matter by contacting with the surface of the photovoltaic panel, thereby realizing continuous and one-by-one cleaning of the photovoltaic panels distributed in rows, meeting the requirements of all-round and effective cleaning of the surface of the photovoltaic panels, improving the cleaning efficiency of the photovoltaic panels and reducing the cleaning cost.

[0019] 2. In this application, the wipes are moistened by the provision of a dripping member, which can effectively reduce water consumption and avoid damage to the surface of the photovoltaic panel caused by flushing in the traditional way, thereby achieving energy-saving cleaning of the photovoltaic panel while ensuring the safety of the photovoltaic panel.

[0020] 3. In the present application, the operation of the driving motor synchronously drives the circular rotation of the wiping towel and the reciprocating swing of the first swing arm and the second swing arm, thereby simplifying the electronic control program of the equipment, improving the operating efficiency of the device, and reducing the investment, operation and maintenance costs of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a device provided in an embodiment of the present invention is shown;

[0022] Figure 2 A schematic diagram of the side structure of a slide provided according to an embodiment of the present invention is shown;

[0023] Figure 3 A schematic side cross-sectional view of a housing provided in an embodiment of the present invention is shown;

[0024] Figure 4 A schematic diagram of the cooperation structure between the slide and the second swing arm according to an embodiment of the present invention is shown;

[0025] Figure 5 A schematic diagram of the front cross-section structure of a slide provided in an embodiment of the present invention is shown;

[0026] Figure 6 A schematic structural diagram of a guide groove provided according to an embodiment of the present invention is shown.

[0027] Legend:

[0028] 1. Wall; 101. Guide groove; 2. Photovoltaic panel; 3. Slide rail; 4. Slide seat; 401. Channel; 402. Notch groove; 403. Through groove; 5. Drive wheel; 6. First swing arm; 7. Second swing arm; 8. Pulley; 9. Belt; 10. Wipe; 11. Drain chamber; 1101. Drip nozzle; 12. Water tank; 13. Shell; 14. Incomplete gear; 15. Chain drive mechanism; 16. N-shaped frame; 17. Rack; 18. Slide arm; 19. Support arm; 20. Slider; 21. Rotary arm; 22. Rotary sleeve; 2201. Slide groove; 23. Vertical rod; 24. Support rod; 25. Compression spring; 26. Magnetic block; 27. Drive motor. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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 any creative efforts shall fall within the scope of protection of the present invention.

[0030] See also Figures 1-6 The present invention provides a technical solution: a photovoltaic device with a self-cleaning function, comprising a wall 1 and a photovoltaic panel 2 installed on the wall 1, a slide rail 3 fixed on both sides of the photovoltaic panel 2 at the top of the wall 1, a slide seat 4 slidably connected to the outer side of the slide rail 3, and a driving wheel 5 for driving it to move along the slide rail 3 is installed on the slide seat 4.

[0031] The driving wheel 5 is an existing technology. The rotation of the roller is controlled by a stepper motor, so that the roller rolls in contact with the outer wall of the slide rail 3, and then drives the two slides 4 to move along both sides of the photovoltaic panel 2 at the same time, so as to clean multiple photovoltaic panels 2 distributed in the same row, thereby achieving the purpose of improving the cleaning efficiency of the photovoltaic panels 2 distributed in rows on the roof.

[0032] Two notches 402 and a through slot 403 located between the two notches 402 are formed inside the slide 4. The first swing arm 6 and the second swing arm 7 are rotatably connected to the two notches 402 respectively. A cleaning brush is fixed to the bottom of the first swing arm 6, and a scraper is fixed to the bottom of the second swing arm 7. A shell cover 13 is fixed to the outer end of the slide 4. An incomplete gear 14 is rotatably connected to the shell cover 13. A transmission member is provided on the slide 4. When the incomplete gear 14 rotates, the first swing arm 6 and the second swing arm 7 rotate back and forth under the action of the transmission member.

[0033] The cleaning brush is used to clean up the sundries on the photovoltaic panel 2 that are large in size and easy to fall off from the photovoltaic panel 2 as the first swing arm 6 rotates, such as fallen branches and leaves, and plastic, cloth and other garbage blown to the roof by the wind.

[0034] The scraper bar is used to clean impurities on the photovoltaic panel 2 that have a certain degree of stickiness and are difficult to separate from the photovoltaic panel 2, such as animal feces, etc., as the second swing arm 7 rotates.

[0035] As the two slides 4 move along the slide rails 3, the rotation of the incomplete gear 14 is controlled to drive the first swing arm 6 and the second swing arm 7 to reciprocate, thereby continuously cleaning the rows of photovoltaic panels 2 one by one. The length of the first swing arm 6 and the second swing arm 7 both extend beyond the slide 4 and exceed the centerline of the photovoltaic panel 2. The two opposing first swing arms 6 and the two second swing arms 7 are staggered, so that when they move with the slide 4, they can cover the photovoltaic panels 2 and clean a large area of ​​the photovoltaic panel 2 surface.

[0036] A dripping member is provided in the through groove 403, and the inner side of the shell cover 13 is rotatably connected to the pulley 8. The outer transmission sleeves of the two pulleys 8 are provided with a belt 9. The outer end of the belt 9 is fixed with a wiping towel 10 that passes through the through groove 403. The outer end of the shell cover 13 is installed with a driving motor 27 that controls the rotation of the pulley 8. The outer end of the shell cover 13 is installed with a chain transmission mechanism 15 that drives the pulley 8 and the incomplete gear 14 to rotate synchronously.

[0037] Two belts 9 are provided on the outer transmission sleeve of pulley 8, with a certain distance between the two belts 9. A water dripping member drips water through this distance onto a wiper 10 on the outer sides of the two belts 9, causing the wiper 10 to act in a damp state on the surface of the photovoltaic panel 2, thereby diluting and softening the surface of the photovoltaic panel 2 and solidified adhesives, thereby facilitating the subsequent rotation of the second swing arm 7 to scrape and clean the foreign matter. The provision of the water dripping member to wet the wiper 10 can effectively reduce water consumption and avoid damage to the surface of the photovoltaic panel 2 caused by traditional flushing methods, thereby achieving energy-saving cleaning of the photovoltaic panel 2 while ensuring the safety of the photovoltaic panel 2.

[0038] When the driving motor 27 controls the pulley 8 to rotate, the dripping component will drip water onto the wiping towel 10. The wiping towel 10 fixed to the pulley 8 will clean the sticky substances adhering to the surface of the photovoltaic panel 2 by contacting with the surface of the photovoltaic panel 2. At the same time, the incomplete gear 14 rotates under the action of the chain transmission mechanism 15, driving the first swing arm 6 and the second swing arm 7 to swing back and forth, thereby achieving all-round and effective cleaning of the surface of the photovoltaic panel 2.

[0039] Specifically, such as Figure 3-Figure 6As shown, the transmission member includes two rotary sleeves 22 rotatably connected to the slide 4, a channel 401 is formed in the slide 4 to cooperate with the rotary sleeve 22 for rotation, and a component that drives the two rotary sleeves 22 to rotate synchronously. The upper ends of the first swing arm 6 and the second swing arm 7 are coaxially fixed with a vertical rod 23 that is slidably connected to the rotary sleeve 22; the side end of the vertical rod 23 is fixed with a support rod 24, and the side wall of the rotary sleeve 22 is formed with a sliding groove 2201 that cooperates with the support rod 24 to slide through.

[0040] When the two rotary sleeves 22 rotate synchronously, they will push the outer wall of the support rod 24 through the inner wall of the slide groove 2201, driving the first swing arm 6 and the second swing arm 7 fixed to the vertical rod 23 to rotate synchronously. When the first swing arm 6 and the second swing arm 7 are opened with the rotation of the rotary sleeve 22, the cleaning brush fixed to the bottom of the first swing arm 6 and the scraper fixed to the bottom of the second swing arm 7 will be in contact with the surface of the photovoltaic panel 2, thereby cleaning foreign matter from the surface of the photovoltaic panel 2 outwards; when the first swing arm 6 and the second swing arm 7 are synchronously rotated and closed, the cleaning brush and the scraper will be separated from the surface of the photovoltaic panel 2, thereby preventing impurities from gathering in the middle of the photovoltaic panel 2.

[0041] A compression spring 25 is embedded in the notch 402 and is distributed vertically with the vertical rod 23. A magnetic block 26 is also fixed in the notch 402. A guide groove 101 is formed on the side wall of the channel 401 to cooperate with the sliding of the support rod 24. The guide groove 101 consists of two horizontal grooves and two vertical grooves connecting the horizontal grooves.

[0042] When the first swing arm 6 and the second swing arm 7 rotate and open synchronously, the support rod 24 fixed on the vertical rod 23 will slide along the horizontal groove on the lower side. As the first swing arm 6 and the second swing arm 7 are opened into place, they will drive the vertical rod 23 to slide upward under the action of the compression spring 25, so that the support rod 24 slides from the horizontal groove on the lower side along the vertical groove to the horizontal groove on the upper side. Then, when the first swing arm 6 and the second swing arm 7 rotate and close synchronously, the support rod 24 slides along the horizontal groove on the upper side. As the first swing arm 6 and the second swing arm 7 are closed into place, they will move downward and reset under the action of the magnetic block 26, so that the support rod 24 slides from the horizontal groove on the upper side along the vertical groove to the horizontal groove on the lower side. The bottom of the first swing arm 6 and the second swing arm 7 are both provided with iron blocks that cooperate with the magnetic adsorption of the magnetic block 26.

[0043] Specifically, such as Figure 3-Figure 5 As shown, the components that drive the two rotary sleeves 22 to rotate synchronously include a slide arm 18 slidably connected to the top of the slide 4, and a combination that drives the slide arm 18 to move back and forth. Support arms 19 are fixed at both ends of the slide arm 18, and a slider 20 is slidably connected to the outer side of the support arm 19. Two rotary arms 21 coaxially fixed with the rotary sleeves 22 are rotatably connected to the slide 4, and the free ends of the rotary arms 21 are rotatably connected to the slider 20.

[0044] When the sliding arm 18 moves back and forth in the horizontal direction, the support arm 19 will pull the slider 20, driving the rotary arm 21 rotatably connected to the slider 20 to drive the rotary sleeve 22 to rotate. During this process, the slider 20 will slide along the outer side of the support arm 19.

[0045] The components that drive the sliding arm 18 to move back and forth include an n-shaped frame 16 that slides vertically in the shell 13. On the two opposite inner walls of the n-shaped frame 16, there are formed racks 17 that engage with the incomplete gear 14. As the incomplete gear 14 rotates, it alternately engages with the two opposite racks 17, driving the n-shaped frame 16 to move back and forth in the vertical direction. A support arm 19 is rotatably connected between the sliding arm 18 and the n-shaped frame 16.

[0046] When the incomplete gear 14 rotates, it will alternately engage with the racks 17 on both sides of the inner wall of the n-shaped frame 16, thereby driving the n-shaped frame 16 to move vertically back and forth along the shell 13. During this process, the sliding arm 18 will slide back and forth along the top of the slide 4 under the action of the support arm 19.

[0047] Specifically, such as Figure 2 、 Figure 3 and Figure 5 As shown, the dripping component includes a drainage chamber 11 fixed in the through groove 403, a drip nozzle 1101 is installed at the bottom of the drainage chamber 11 to drip water onto the wipe 10, and a water tank 12 is installed on the slide 4 to supply water to the drainage chamber 11 through a pump body.

[0048] A pipe is formed in the slide 4 to connect the water tank 12 with the drainage chamber 11. The water tank 12 is filled with cleaning water. When the slide 4 moves along the slide rail 3, the water tank 12 will send the water inside it to the drainage chamber 11 through the pipe through the pump body, and then drop the water onto the wipe 10 through the drip nozzle 1101.

[0049] The chain transmission mechanism 15 includes two sprockets rotatably connected to the outside of the housing 13, one of the sprockets is coaxially fixed to the incomplete gear 14, and the other sprocket is coaxially fixed to the pulley 8. The outer meshing sleeves of the two sprockets are provided with chains.

[0050] When the pulley 8 rotates, the sprocket fixed coaxially with the pulley 8 will drive another sprocket fixed coaxially with the incomplete gear 14 to rotate through the chain, thereby realizing the synchronous driving of the circular rotation of the wiping towel 10 and the reciprocating swing of the first swing arm 6 and the second swing arm 7 through the operation of the drive motor 27, thereby achieving the purpose of simplifying the electronic control program of the equipment, improving the operating efficiency of the device, and reducing the investment, operation and maintenance costs of the equipment.

[0051] The above description of the embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A photovoltaic device with a self-cleaning function, comprising a wall (1) and a photovoltaic panel (2) mounted on the wall (1), characterized in that: Slide rails (3) are fixedly provided on the top of the wall (1) and located on both sides of the photovoltaic panel (2); a slide seat (4) is slidably connected to the outer side of the slide rail (3); and a driving wheel (5) is installed on the slide seat (4) for driving the slide seat (4) to move along the slide rail (3); Two notches (402) and a through slot (403) located between the two notches (402) are formed inside the slide (4); a first swing arm (6) and a second swing arm (7) are rotatably connected in the two notches (402), a cleaning brush is fixedly provided at the bottom of the first swing arm (6), and a scraper is fixedly provided at the bottom of the second swing arm (7); a shell cover (13) is fixedly provided at the outer end of the slide (4); an incomplete gear (14) is rotatably connected in the shell cover (13); a transmission member is provided on the slide (4); when the incomplete gear (14) rotates, the first swing arm (6) and the second swing arm (7) rotate back and forth under the action of the transmission member; A water dripping member is provided in the through groove (403), a pulley (8) is rotatably connected to the inner side of the shell cover (13), a belt (9) is provided on the outer transmission sleeves of the two pulleys (8), a wiping towel (10) passing through the through groove (403) is fixed to the outer end of the belt (9), a driving motor (27) for controlling the rotation of the pulley (8) is installed on the outer end of the shell cover (13), and a chain transmission mechanism (15) for driving the pulley (8) and the incomplete gear (14) to rotate synchronously is installed on the outer end of the shell cover (13).

2. A photovoltaic device with a self-cleaning function according to claim 1, characterized in that: The transmission member comprises two rotary sleeves (22) rotatably connected to the slide seat (4), a channel (401) formed in the slide seat (4) and embedded in the rotation of the rotary sleeves (22), and a component for driving the two rotary sleeves (22) to rotate synchronously, and the upper ends of the first swing arm (6) and the second swing arm (7) are both coaxially fixed with a vertical rod (23) slidably connected to the rotary sleeves (22).

3. A photovoltaic device with a self-cleaning function according to claim 2, characterized in that: A support rod (24) is fixedly provided at the side end of the vertical rod (23), and a sliding groove (2201) is formed on the side wall of the rotary sleeve (22) for sliding through the support rod (24).

4. A photovoltaic device with a self-cleaning function according to claim 3, characterized in that: A compression spring (25) is embedded in the notch groove (402) and is distributed in the same vertical direction as the vertical rod (23). A magnetic block (26) is also fixed in the notch groove (402). A guide groove (101) for sliding with the support rod (24) is formed on the side wall of the channel (401). The guide groove (101) consists of two transverse grooves and two vertical grooves connecting the transverse grooves.

5. The photovoltaic device with self-cleaning function according to claim 2, characterized in that: The component that drives the two rotary sleeves (22) to rotate synchronously includes a sliding arm (18) slidably connected to the top of the slide (4), and a joint that drives the sliding arm (18) to move back and forth. Support arms (19) are fixed at both ends of the sliding arm (18). The outer side of the support arm (19) is slidably connected to a slider (20). Two rotary arms (21) that are coaxially fixed with the rotary sleeves (22) are rotatably connected to the slide (4), and the free ends of the rotary arms (21) are rotatably connected to the slider (20).

6. The photovoltaic device with self-cleaning function according to claim 5, characterized in that: The components that drive the sliding arm (18) to move back and forth include an n-shaped frame (16) that slides vertically in the shell (13). Two oppositely distributed inner walls of the n-shaped frame (16) are formed with racks (17) that engage with the incomplete gear (14). As the incomplete gear (14) rotates, it alternately engages with the two oppositely distributed racks (17), driving the n-shaped frame (16) to move back and forth in the vertical direction. A support arm (19) is rotatably connected between the sliding arm (18) and the n-shaped frame (16).

7. The photovoltaic device with self-cleaning function according to claim 1, characterized in that: The dripping member comprises a drainage chamber (11) fixed in the through groove (403); a dripping nozzle (1101) for dripping water onto the wiping towel (10) is installed at the bottom of the drainage chamber (11); and a water tank (12) for supplying water to the drainage chamber (11) through a pump body is installed on the sliding seat (4).

8. The photovoltaic device with self-cleaning function according to claim 1, characterized in that: The chain transmission mechanism (15) includes two sprockets rotatably connected to the outside of the housing (13), one of the sprockets is coaxially fixed to the incomplete gear (14), and the other sprocket is coaxially fixed to the pulley (8), and the outer meshing sleeves of the two sprockets are provided with chains.

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