Photovoltaic panel automatic cleaning mechanism and cleaning device thereof
By designing the automatic cleaning mechanism of photovoltaic panels, adopting a rotating roller structure and multiple cleaning methods, the safety risks and high cost of traditional manual cleaning are solved, efficient and economical photovoltaic panel cleaning is achieved, and the continuous power generation efficiency of photovoltaic modules is ensured.
Patent Information
- Application Number
- CN202510767547.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-10
- Publication Date
- 2025-08-08
AI Technical Summary
The traditional artificial cleaning of photovoltaic panels poses safety risks at high altitude operations, and the cleaning frequency is difficult to ensure timeliness and uniformity, resulting in a decrease in the photoelectric conversion efficiency of photovoltaic modules and high operating and maintenance costs.
An automatic cleaning mechanism for photovoltaic panels is designed, adopting side-by-side rotary roller structure, combining cleaning, and air blowing methods, and using the shield to control the nozzle position, realize multiple cleaning, save manpower and time, and reduce costs.
It improves the surface impurity cleaning effect of photovoltaic panels, simplifies cleaning methods, reduces operating and maintenance costs, and ensures continuous and efficient power generation of photovoltaic modules.
Smart Images
Figure CN120454628A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of cleaning equipment, and in particular to an automatic cleaning mechanism for a photovoltaic panel and a cleaning device thereof. Background Art
[0002] With the continued growth of global demand for renewable energy and the continuous maturation of technology, photovoltaic power generation has become a key pillar of the energy transition. However, during long-term outdoor operation, photovoltaic panels are inevitably exposed to various natural and man-made environmental factors. Pollutants such as dust, grit, bird droppings, pollen, industrial emissions, fallen leaves, and dried water stains formed on the panel surface after rain and snow gradually deposit on the panel surface. This layer of dirt significantly blocks sunlight from reaching the cells, creating a "shading effect" and reducing the photovoltaic module's photoelectric conversion efficiency. At the same time, large-scale photovoltaic power stations often occupy vast areas, have a large number of modules, and are installed in locations (such as rooftops, mountains, water surfaces, and the tops of agricultural greenhouses) that may pose challenges such as high altitude, inclined, or difficult to access. Traditional methods that rely on regular manual cleaning not only require a large amount of manpower and material resources and pose safety risks for working at height, but also make it difficult to ensure timely cleaning frequency and uniform cleaning results. As a result, operating and maintenance costs are becoming an increasingly significant burden in the management of power plants throughout their life cycle. Therefore, how to efficiently, safely and economically solve the problem of dust accumulation on the surface of photovoltaic panels and ensure continuous, efficient and stable power generation in power stations has become a key common demand that needs to be urgently addressed in the large-scale and intelligent development of the photovoltaic industry. Summary of the Invention
[0003] The present invention provides a photovoltaic panel automatic cleaning mechanism and a cleaning device thereof, which can effectively solve the problems in the background technology.
[0004] In order to achieve the above object, the technical solution adopted by the present invention is: A photovoltaic panel automatic cleaning mechanism includes a plurality of rollers arranged side by side, each of the rollers having a plurality of cleaning bodies disposed on its outer wall for cleaning the surface of the photovoltaic panel, the rollers being hollow inside and having a plurality of nozzles disposed on their outer walls; Wherein, a shield is provided in the rotating roller, and the shield is used to shield the nozzle 1 that deviates from the bottom of the rotating roller.
[0005] In some embodiments of the present invention, the cleaning bodies on the outer wall of each roller are distributed in a spiral shape.
[0006] In some embodiments of the present invention, each of the rollers is conical in shape, and the narrow end of the roller is located at the upper end of the photovoltaic panel, the wide end of the roller is located at the lower end of the photovoltaic panel, and the roller is in line contact with the surface of the photovoltaic panel.
[0007] In some embodiments of the present invention, the nozzle 1 is inclined on the roller, and in the circumferential direction of the roller, the inclination directions of two adjacent nozzles 1 are opposite.
[0008] In some embodiments of the present invention, the rotation direction of the roller is opposite to its traveling direction on the photovoltaic panel.
[0009] In some embodiments of the present invention, a side body is provided at the narrow end of the roller, and the roller rotates on the side body, the side body is hollow inside, and a plurality of nozzles are opened on the side wall of the side body facing the photovoltaic panel, and the roller is connected to the side body; The opening direction of the second nozzle is inclined, and the inclination angles of the second nozzles gradually increase in the direction away from the surface of the photovoltaic panel.
[0010] A photovoltaic panel automatic cleaning device, comprising the above-mentioned photovoltaic panel automatic cleaning mechanism; It also includes an outer frame and a guide rail assembly, the side body is fixed to the outer frame, and both ends of the outer frame are provided with a plurality of roller assemblies used in conjunction with the guide rail assembly, the roller assembly includes two gears distributed up and down, and the two gears are meshed with each other, and each gear is provided with a roller; The guide rail group includes guide rails relatively installed on both sides of each photovoltaic panel, and each guide rail has a track groove on the upper and lower sides. The two rollers in the roller group are respectively rotatably mounted in the two track grooves on the guide rails. The guide rail and the photovoltaic panel are integrally formed, or connected by bolt connection, clamping connection, or riveting connection.
[0011] In some embodiments of the present invention, a conductive plate is provided in a track groove at the bottom of one of the guide tracks, and the conductive plate is electrically connected to the corresponding roller; The outer frame is provided with a plurality of motors for providing power for the rotation of the gears and the rotation of the rollers, and the photovoltaic panel provides electrical energy to each motor through the conductive plate and the roller.
[0012] In some embodiments of the present invention, the conductive plate is movably arranged in the corresponding track groove, and the conductive plate and the photovoltaic panel are respectively provided with conductors and conductive sheets that abut or separate from each other, and when the conductor abuts the conductive sheet, the photovoltaic panel is electrically connected to the conductive plate.
[0013] In some embodiments of the present invention, the moving distance of the conductive plate is smaller than the radius of the roller.
[0014] The technical solution of the present invention can achieve the following technical effects: By adopting multiple methods such as sweeping, cleaning and blowing to clean impurities on the surface of the photovoltaic panel, the impurity cleaning effect can be effectively improved, impurity residue can be avoided, and the cleaning method can be simplified, saving manpower and time, and reducing cleaning costs; the shield inside each roller is used to block the nozzle at a specific position, so that water or air flow can only be discharged from the bottom of the roller and clean the impurities on the surface of the photovoltaic panel, effectively avoiding the phenomenon of water or air flow being discharged from other positions of the roller and causing waste, and rationally planning resource use. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a schematic structural diagram of an external frame in an embodiment of the present invention; Figure 3 2 is a schematic structural diagram of a rotating roller in an embodiment of the present invention; Figure 4 This is a schematic diagram of the photovoltaic panel structure when viewed from above in an embodiment of the present invention; Figure 5 It is a schematic diagram of the partial cross-sectional structure of the rotating roller in an embodiment of the present invention.
[0017] Reference numerals: 100. Photovoltaic panels; 200, rotating roller; 201, cleaning body; 202, nozzle 1; 203, side body; 204, nozzle 2; 205, supporting sleeve; 206, conveying pipe; 207, shield; 300, outer frame; 301, gear; 302, roller; 303, guide track; 304, track groove; 305, conductive plate; 306, conductor; 307, conductive sheet. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0020] like Figures 1 to 5 As shown, an automatic photovoltaic panel cleaning mechanism of the present invention includes a plurality of rollers 200 arranged side by side. A plurality of cleaning bodies 201 for cleaning the surface of the photovoltaic panel 100 are provided on the outer wall of each roller 200. The roller 200 is hollow inside and has a plurality of nozzles 202 formed on the outer wall of the roller 200. The roller 200 is provided with a shield 207, which is used to shield the nozzle 1 202 that deviates from the bottom of the roller 200; In the present invention, the arrangement direction of the plurality of rollers 200 is along the arrangement direction of the plurality of photovoltaic panels 100, and the length direction of the rollers 200 is perpendicular to the arrangement direction thereof, so that when the rollers 200 move on the photovoltaic panels 100 along the arrangement direction of the photovoltaic panels 100, their movement tracks can fully cover the photovoltaic panels 100; the plurality of cleaning bodies 201 on the rollers 200 are used to sweep or scrape impurities on the surface of the photovoltaic panels 100, and the specific cleaning bodies 201 can be structures such as brushes, scrapers or soft rubber plates, which are mainly used for contact cleaning of impurities on the surface of the photovoltaic panels 100; the hollow arrangement inside the rollers 200 can be used to transport water, and the water is discharged through the nozzle 1 202 and falls onto the surface of the photovoltaic panels 100, thereby achieving a cleaning process for impurities on the surface of the photovoltaic panels 100, thereby achieving a multiple cleaning effect on impurities; It should be noted that, in addition to conveying water, the interior of the roller 200 can also be used to convey air, so that the airflow discharged from the nozzle 1 202 can blow away impurities on the photovoltaic panel 100, thereby achieving another cleaning method; In actual use, the rollers 200 move forward along the arrangement direction of the photovoltaic panels 100 and pass through each photovoltaic panel 100. At this time, the cleaning body 201 on the roller 200 will sweep or scrape the impurities on the surface of the photovoltaic panel 100. At the same time, the water discharged from the nozzles 202 on the roller 200 can flush the impurities, thereby achieving multiple cleaning effects. When the roller 200 moves to one end of its stroke, the roller 200 moves in the opposite direction. At this time, the roller 200 is no longer supplied with water, but with air. In this way, the roller 200 moving in the opposite direction will clean the surface of the photovoltaic panel 100 again, and the airflow discharged from the nozzles 202 can achieve a blowing and cleaning effect on the impurities. At the same time, the airflow will dry the water remaining on the surface of the photovoltaic panel 100 when flushing, thereby preventing water stains from affecting the photovoltaic panel 100 from receiving light, making it convenient for the photovoltaic panel 100 to be put into use quickly after cleaning. In some embodiments, the roller 200 may reciprocate multiple times along the arrangement direction of the photovoltaic panels 100, and the nozzle 1 202 may first be cleaned by air blowing, then rinsed with water, and finally dried by air blowing. This can reduce the mixing of impurities and water, prevent impurities from adhering to the photovoltaic panels 100 due to the action of water, and improve the cleaning effect. In the above structure, the shield 207 can be used to shield the nozzle 202 that deviates from the bottom of the roller 200, such as Figure 5 As shown, the shield 207 is coaxially arranged along the length direction of the roller 200, and the cross-sectional shape of the shield 207 is arc-shaped, and its arc-shaped opening is downward, so that the gas or water in the roller 200 can only be discharged from the several nozzles 202 at the bottom of the roller 200, and cannot be discharged from other positions on the roller 200, thereby making it convenient for the gas or water to act directly on the photovoltaic panel 100, avoiding its arbitrary discharge and waste; because the shield 207 only blocks the nozzles 202 at specific positions, the position of the shield 207 in the roller 200 is fixed, that is, the roller 200 and the shield are fixed. 207 moves relative to each other; the end of the roller 200 can be driven and supported by the support sleeve 205, and a delivery pipe 206 is inserted into the support sleeve 205. The delivery pipe 206 is connected to the interior of the roller 200, and the support sleeve 205 can rotate on the delivery pipe 206, so that gas or water can be introduced into the roller 200 through the delivery pipe 206; the shield plate 207 can be fixedly connected to the delivery pipe 206, thereby achieving support for the shield plate 207; the delivery pipe 206 can be connected to an external air pump or water pump through a control valve, thereby achieving control and supply of gas or water; By adopting multiple methods such as sweeping, cleaning and blowing to clean impurities on the surface of the photovoltaic panel 100, the impurity cleaning effect can be effectively improved, impurity residue can be avoided, and the cleaning method can be simplified, saving manpower and time, and reducing cleaning costs; the shield 207 in each roller 200 is used to block the nozzle 202 at a specific position, so that water or air flow can only be discharged from the bottom of the roller 200 and clean the impurities on the surface of the photovoltaic panel 100, effectively avoiding the phenomenon of water or air flow being discharged from other positions of the roller 200 and causing waste, and rationally planning resource use.
[0021] Since the moving direction of the roller 200 is along the arrangement direction of the photovoltaic panels 100, the impurities need to be discharged from both sides along the axis of the roller 200, so that the impurities can be removed from the photovoltaic panels 100 in time without causing the roller 200 to push the impurities to move along the arrangement direction of the photovoltaic panels 100. To achieve the above purpose, the following method can be used: Figure 3 In the manner shown, the cleaning bodies 201 on the outer wall of each roller 200 are all distributed in a spiral shape; by using the cleaning bodies 201 arranged in a spiral shape, the impurities can be moved along the axis direction of the roller 200 when cleaning impurities, thereby facilitating the impurities to be cleaned off the photovoltaic panel 100 evenly; the spiral directions of the cleaning bodies 201 on each roller 200 can be the same or opposite. When the directions are the same, multiple cleaning operations in the same direction can be performed on the impurities, thereby improving the cleaning effect; when the directions are opposite, since there are multiple corners of the solar cells on the photovoltaic panel 100, the multi-directional cleaning operation can avoid the impurities from being hidden and remaining in the corners, which can also improve the cleaning effect. Based on the above manner, a suitable spiral arrangement can be selected according to actual conditions and work requirements; It should be pointed out that when the photovoltaic panel 100 is in use, it is generally set at an angle, so that the photovoltaic panel 100 can better receive light. Therefore, the spiral setting direction of each cleaning body 201 on the roller 200 can be set according to the tilt direction of the photovoltaic panel 100. This can facilitate the use of the tilt setting of the photovoltaic panel 100 to naturally fall off impurities and improve the impurity cleaning effect, that is, the spiral directions of the cleaning bodies 201 on several rollers 200 are the same.
[0022] As impurities slide along the surface of the photovoltaic panel 100, the impurities will gradually increase. Therefore, as the height of the photovoltaic panel 100 decreases, the cleaning ability of the impurities on the photovoltaic panel 100 needs to be gradually strengthened to cope with the phenomenon of increasing impurities. To achieve the above purpose, the following method can be used: Figure 3 In the manner shown, each roller 200 is conical in shape, and the narrow end of the roller 200 is located at the upper end of the photovoltaic panel 100, and the wide end of the roller 200 is located at the lower end of the photovoltaic panel 100, and the roller 200 is in line contact with the surface of the photovoltaic panel 100; Since the roller 200 is in linear contact with the surface of the photovoltaic panel 100, the straight line on which the bottom of the roller 200 is located is parallel to the surface of the photovoltaic panel 100. Since the shape of the roller 200 is conical, when the roller 200 rotates, the linear speed at different positions thereon is different, that is, as the height position of the photovoltaic panel 100 decreases, the cleaning ability of the roller 200 on the photovoltaic panel 100 increases.
[0023] In some embodiments of the present invention, nozzle 1 202 is inclined on the roller 200, and in the circumferential direction of the roller 200, the inclination directions of two adjacent nozzles 1 202 are opposite; when the roller 200 moves along the arrangement direction of several photovoltaic panels 100, since impurities are easily hidden at the corners of the solar cells on the photovoltaic panels 100, the inclined setting of nozzle 1 202 can be used to clean the corners, thereby improving the cleaning effect of the photovoltaic panels 100. At the same time, since the roller 200 needs to rotate and move, there will be a cleaning blind spot on the photovoltaic panel 100 based on the rotation direction of the roller 200, and the relative setting of the inclination directions of two adjacent nozzles 1 202 can also produce an effective cleaning effect on the blind spot; specifically, for example, when the roller 200 moves to the left, the left corner of the solar cell is not easily cleaned by the cleaning body 201 on the roller 200, that is, this position is a cleaning blind spot.
[0024] When the several cleaning bodies 201 on the roller 200 are cleaning impurities on the surface of the photovoltaic panel 100, if the roller 200 only rolls on the photovoltaic panel 100, the relative movement speed of the several cleaning bodies 201 on the roller 200 and the photovoltaic panel 100 is slow, and it cannot achieve an effective cleaning effect on the photovoltaic panel 100. In order to increase the relative movement speed of the roller 200 and the photovoltaic panel 100, the rotation direction of the roller 200 can be set, that is, the rotation direction of the roller 200 is relative to its travel direction on the photovoltaic panel 100; when the roller 200 moves to the left, it rotates clockwise, so that a larger relative movement speed will be generated between the bottom of the roller 200 and the upper surface of the photovoltaic panel 100, thereby for a certain position on the photovoltaic panel 100, the roller 200 can achieve multiple and efficient cleaning effects.
[0025] In some embodiments of the present invention, Figure 3 As shown, the narrow end of the roller 200 is provided with a side body 203, and the roller 200 rotates on the side body 203. The side body 203 is hollow inside, and a plurality of nozzles 204 are opened on the side wall of the side body 203 facing the photovoltaic panel 100. The roller 200 is connected to the side body 203; The opening direction of the second nozzle 204 is inclined, and the inclination angles of the second nozzles 204 gradually increase in the direction away from the surface of the photovoltaic panel 100; The side body 203 can provide support for several rollers 200, and the side body 203 is located at the upper end of the photovoltaic panel 100. The water or air in the roller 200 can be supplied into the side body 203 and discharged to the photovoltaic panel 100 with the help of several nozzles 204, thereby blowing air or discharging water downward from the high position of the photovoltaic panel 100, thereby achieving a cleaning effect on the photovoltaic panel 100; the inclined setting of the nozzles 204 on the side body 203 and the gradual change of the inclination angle of each nozzle 204 can avoid the water or airflow discharged from several nozzles 204 from concentrating on the photovoltaic panel 100, and can facilitate the diffusion of water or airflow to the photovoltaic panel 100.
[0026] like Figure 2 and Figure 4 As shown, a photovoltaic panel automatic cleaning device includes the above-mentioned photovoltaic panel automatic cleaning mechanism; The outer frame 300 and the guide rail assembly are further included. The side body 203 is fixed to the outer frame 300. Both ends of the outer frame 300 are provided with a plurality of roller assemblies for use with the guide rail assembly. The roller assemblies include two gears 301 distributed vertically and meshing with each other. Each gear 301 is provided with a roller 302. The guide rail assembly includes guide rails 303 mounted on both sides of each photovoltaic panel 100. The upper and lower sides of each guide rail 303 are provided with rail grooves 304. The two rollers 302 in the roller assembly are respectively rolled and clamped in the two rail grooves 304 on the guide rails 303. The guide rail 303 and the photovoltaic panel 100 are integrally formed, or connected by bolt connection, clamping connection, or riveting connection. Two guide rails 303 are arranged relatively on each photovoltaic panel 100, so that the external frame 300 and the structure thereon can be moved on each photovoltaic panel 100, so that a large number of photovoltaic panels 100 can be cleaned by using one external frame 300 and the structure thereon; the shape of the guide rail 303 can be set to a right angle, and the two rail grooves 304 on the guide rail 303 can be set on the upper and lower sides of the guide rail 303, thereby facilitating the lifting and support of the external frame 300, and at the same time, the rail grooves 304 and the rollers 302 can be used to limit the position of the external frame 300 to prevent it from being separated from the photovoltaic panel 100; the external frame 300 is mainly used to provide an installation position for the roller 200; the setting of several roller groups can make the movement of the external frame 300 on the guide rail group more stable, and the setting method of the two gears 301 meshing with each other can make the corresponding two rollers 302 move synchronously on the guide rail 303.
[0027] In some embodiments of the present invention, a conductive plate 305 is provided in the track groove 304 at the bottom of a guide track 303 , and the conductive plate 305 is electrically connected to the corresponding roller 302 ; The outer frame 300 is provided with several motors for providing power for the rotation of the gear 301 and the rotation of the roller 200. The photovoltaic panel 100 provides power to each motor through the conductive plate 305 and the roller 302. When the roller 200 moves, it can use the electric energy generated by the photovoltaic panel 100 to directly provide power for the rotation and movement of the roller 200, thereby avoiding the structural design of installing a battery pack on the external frame 300 and reducing the counterweight of the external frame 300; since the photovoltaic panel 100 and the motor on the external frame 300 are electrically connected through the conductive plate 305 and the roller 302, when the external frame 300 moves to different photovoltaic panels 100, different photovoltaic panels 100 can provide electric energy for the roller 200, thereby ensuring the continuous movement of the roller 200; of course, in order to facilitate control or stabilize the circuit, common electrical structures such as controllers and voltage stabilizers can be installed on the external frame 300.
[0028] In some embodiments of the present invention, the conductive plate 305 is movably disposed in the corresponding track groove 304. The conductive plate 305 and the photovoltaic panel 100 are respectively provided with a conductor 306 and a conductive sheet 307 that abut or separate from each other. When the conductor 306 abuts the conductive sheet 307, the photovoltaic panel 100 is electrically connected to the conductive plate 305. When the external frame 300 moves onto the photovoltaic panel 100, the corresponding roller 302 on the external frame 300 can push the conductive plate 305 upward to the working position, and the conductive plate 305 will push the conductor 306 to abut against the conductive sheet 307, thereby enabling the photovoltaic panel 100 to provide electrical energy for the roller 200. When the external frame 300 deviates from the photovoltaic panel 100, the conductive plate 305 can naturally fall to the specified position due to gravity, and the conductive plate 305 will drive the conductor 306 to separate from the conductive sheet 307, thereby disconnecting the conductive plate 305 from the photovoltaic panel 100 and preventing the conductive plate 305 from being charged.
[0029] In some embodiments of the present invention, the moving distance of the conductive plate 305 is smaller than the radius of the roller 302; Since the conductive plate 305 is powered off, the roller 302 needs to squeeze the conductive plate 305 when moving onto the photovoltaic panel 100, and cannot collide or get stuck with the conductive plate 305. Therefore, the moving distance of the conductive plate 305 needs to be specially set, that is, the moving distance of the conductive plate 305 is smaller than the radius of the roller 302. In this way, when the roller 302 moves to the end of the conductive plate 305, the upper side of the outer wall of the roller 302 can use its own arc shape to push the conductive plate 305 upward, thereby providing moving power for the conductive plate 305, so that the conductor 306 abuts against the conductive sheet 307.
[0030] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
Claims
1. A photovoltaic panel automatic cleaning mechanism, characterized in that: The invention comprises a plurality of rollers arranged side by side, wherein the outer wall of each roller is provided with a plurality of cleaning bodies for cleaning the surface of the photovoltaic panel, the interior of the roller is hollow, and the outer wall of the roller is provided with a plurality of nozzles. Wherein, a shield is provided in the rotating roller, and the shield is used to shield the nozzle 1 that deviates from the bottom of the rotating roller.
2. The automatic cleaning mechanism for photovoltaic panels according to claim 1, characterized in that: The cleaning bodies on the outer wall of each rotating roller are distributed in a spiral shape.
3. The automatic cleaning mechanism for photovoltaic panels according to claim 1, characterized in that: The shape of each roller is conical, and the narrow end of the roller is located at the upper end of the photovoltaic panel, the wide end of the roller is located at the lower end of the photovoltaic panel, and the roller is in line contact with the surface of the photovoltaic panel.
4. The automatic cleaning mechanism for photovoltaic panels according to claim 1, characterized in that: The nozzles 1 are inclined on the roller, and in the circumferential direction of the roller, the inclined directions of two adjacent nozzles 1 are opposite.
5. The automatic cleaning mechanism for photovoltaic panels according to claim 1, characterized in that: The rotation direction of the roller is opposite to the traveling direction of the roller on the photovoltaic panel.
6. The automatic photovoltaic panel cleaning mechanism according to claim 5, characterized in that: The narrow end of the roller is provided with a side body, and the roller rotates on the side body, the side body is hollow inside, and a plurality of nozzles are opened on the side wall of the side body facing the photovoltaic panel, and the roller is connected to the side body; The opening direction of the second nozzle is inclined, and the inclination angles of the plurality of second nozzles gradually increase in the direction away from the surface of the photovoltaic panel.
7. A photovoltaic panel automatic cleaning device, characterized in that: Comprising an automatic photovoltaic panel cleaning mechanism as described in any one of claims 1 to 6; It also includes an outer frame and a guide rail assembly, the side body is fixed to the outer frame, and both ends of the outer frame are provided with a plurality of roller assemblies used in conjunction with the guide rail assembly, the roller assembly includes two gears distributed up and down, and the two gears are meshed with each other, and each gear is provided with a roller; The guide rail group includes guide rails relatively installed on both sides of each photovoltaic panel, and each guide rail has a track groove on the upper and lower sides. The two rollers in the roller group are respectively rotatably mounted in the two track grooves on the guide rails. The guide rail and the photovoltaic panel are integrally formed, or connected by bolt connection, clamping connection, or riveting connection.
8. The photovoltaic panel automatic cleaning device according to claim 7, characterized in that: A conductive plate is provided in a track groove at the bottom of one of the guide tracks, and the conductive plate is electrically connected to the corresponding roller; The outer frame is provided with a plurality of motors for providing power for the rotation of the gears and the rollers, and the photovoltaic panels provide electrical energy to the motors through the conductive plates and the rollers.
9. The photovoltaic panel automatic cleaning device according to claim 8, characterized in that: The conductive plate is movably arranged in the corresponding track groove. The conductive plate and the photovoltaic panel are respectively provided with a conductor and a conductive sheet that abut or separate from each other, and when the conductor abuts the conductive sheet, the photovoltaic panel is electrically connected to the conductive plate.
10. The photovoltaic panel automatic cleaning device according to claim 9, characterized in that: The moving distance of the conductive plate is smaller than the radius of the roller.