Multifunctional cleaning device for photovoltaic panel

Abstract

The invention discloses a multifunctional cleaning device for a photovoltaic panel, and relates to the technical field of photovoltaic panel cleaning. The device comprises a vehicle body, a mechanical arm and a fixing frame located at one end of the mechanical arm, the fixing frame is hinged to one end of the mechanical arm, a sweeping assembly is arranged in the fixing frame and comprises a snow removing unit and a conveying unit, the snow removing unit comprises a sweeping brush, a rotating plate and a snow shoveling plate, and the sweeping brush and the rotating plate sweep snow through rotation; floating snow can be efficiently removed through the sweeping assembly without damaging a photovoltaic panel coating film, accumulated snow is directionally gathered through the rotating plate, the sweeping concentration degree is improved, the accumulated snow and an ice layer can be effectively shoveled and compacted through the obliquely-arranged snow shoveling plate, the problem that the adaptability of a single sweeping component is poor is solved, the accumulated snow can be rapidly conveyed to the collecting hopper through the conveying pipe to be stored in a centralized mode, and the sweeping efficiency is improved. Therefore, secondary accumulation of accumulated snow around the photovoltaic panel is reduced, the power generation efficiency is improved, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic panel cleaning technology, and more specifically to a multifunctional cleaning device for photovoltaic panels. Background Technology

[0002] In recent years, the global photovoltaic (PV) power generation scale has continued to expand, and extreme weather events (such as blizzards and strong winds with dust storms) have become increasingly frequent, making the problems of snow and dust accumulation on PV panel surfaces increasingly prominent. Snow cover can cause a sharp drop in the light transmittance of PV panels, reducing power generation efficiency by up to 80%, and in low-temperature environments, snow freezing into ice can also cause PV panel glass to shatter and support structures to deform. Long-term dust accumulation can create a "hot spot effect," accelerating the aging of PV modules and shortening the lifespan of the equipment. As the new energy industry advances its green and low-carbon development goals, the demand for efficient and clean technologies in the operation and maintenance of PV power plants is becoming increasingly urgent, especially in high-altitude, windy, and complex terrain areas.

[0003] Existing photovoltaic panel cleaning methods rely on traditional manual cleaning, which is inefficient, labor-intensive, and poses safety risks such as frostbite and slips in cold regions. Furthermore, these methods are not suitable for large-scale photovoltaic power plant operations. Mechanized automatic cleaning devices, on the other hand, have limited functionality. For example, devices equipped with only rotating brushes can only remove loose snow and a small amount of dust, and their cleaning effect is extremely poor when dealing with compacted snow or ice. In addition, some existing photovoltaic panel cleaning devices lack snow transfer capabilities, which can lead to secondary accumulation of snow around the photovoltaic modules after cleaning, further affecting power generation efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a multifunctional cleaning device for photovoltaic panels to solve the problems existing in the prior art.

[0005] To solve the above problems, the present invention adopts the following technical solution: A multifunctional cleaning device for photovoltaic panels includes a vehicle body, a robotic arm, and a fixed frame located at one end of the robotic arm. The fixed frame is hinged to one end of the robotic arm, and a cleaning assembly is provided inside the fixed frame. The cleaning assembly includes a snow removal unit and a transport unit. The snow removal unit includes a sweeping brush, a rotating plate, and a snow shovel. The sweeping brush and rotating plate sweep snow by rotating, while the snow shovel shovels snow by moving horizontally. The transport unit includes a spiral conveyor roller and a centrifugal impeller, which transport snow by rotating.

[0006] Furthermore, a first drive motor is fixedly installed on one side of the fixed frame, and a rotating shaft is rotatably connected inside the fixed frame. The number of cleaning brushes and rotating plates is set to multiple sets, and multiple cleaning brushes and rotating plates are fixedly installed on the outer wall of the rotating shaft. The output end of the first drive motor passes through one side of the fixed frame and is fixedly connected to one end of the rotating shaft.

[0007] Furthermore, a second drive motor is fixedly installed on both sides of the fixed frame, and a fixed plate is fixedly installed inside the fixed frame. The number of spiral conveying rollers is set to two, and both spiral conveying rollers are rotatably connected to the inside of the fixed frame. One end of each spiral conveying roller is rotatably connected to the fixed plate. The output end of each second drive motor passes through one side of the fixed frame and is fixedly connected to one end of the corresponding spiral conveying roller.

[0008] Furthermore, the snowplow is fixedly installed on one side of the frame, located below the two spiral conveyor rollers, with the top of the snowplow set at an angle.

[0009] Furthermore, a connecting chamber is connected to one side of the fixed frame, and the centrifugal impeller is located inside the connecting chamber and is rotatably connected. A third drive motor is fixedly installed on one side of the connecting chamber, and the output end of the third drive motor passes through one side of the connecting chamber and is fixedly connected to one end of the centrifugal impeller.

[0010] Furthermore, a conveying pipe is connected to one side of the connecting compartment, and a collection hopper is fixedly installed on one side of the vehicle body.

[0011] Through the above technical solutions, the combination of sweeping brush, rotating plate and snow shovel in the sweeping component can adapt to different types of snow. The flexible sweeping brush can efficiently remove loose snow without damaging the photovoltaic panel coating. The rotating plate can directionally gather the snow and improve the sweeping concentration. In addition, the tilted snow shovel can effectively shovel up and compact the snow and ice, solving the problem of poor adaptability of a single sweeping component.

[0012] Furthermore, multiple high-pressure nozzles are provided on one side of the mounting bracket, and the top of each high-pressure nozzle is connected to a connecting pipe. All the high-pressure nozzles are located on one side of the cleaning brush.

[0013] Furthermore, multiple pressure sensors are installed at the bottom of the mounting bracket.

[0014] The above technical solution, through the setting of multiple high-pressure nozzles, can remove the tiny snow particles, snow fragments embedded in the gaps between the boards, and attached dust that remain after the sweeping brush has swept.

[0015] Compared with the prior art, the beneficial effects of the present invention are: The combination of sweeping brushes, rotating plates, and snow shovels in the sweeping assembly can adapt to different types of snow. The flexible sweeping brush can efficiently remove loose snow without damaging the photovoltaic panel coating, the rotating plate can directionally gather the snow and improve the sweeping concentration, and the inclined snow shovels can effectively scoop up and compact the snow and ice, solving the problem of poor adaptability of a single sweeping component. In addition, the reverse rotation of the double helical conveying rollers can efficiently gather the snow towards the center and avoid one-sided blockage. Combined with the centrifugal force generated by the high-speed rotation of the centrifugal impeller, the snow can be quickly transported to the collection hopper for centralized storage through the conveying pipe, thereby reducing the secondary accumulation of snow around the photovoltaic panel, improving power generation efficiency and equipment lifespan. With multiple high-pressure nozzles, the system can remove tiny snow particles, snow fragments embedded in the gaps between the panels, and attached dust left after the cleaning brush has swept the surface. At the same time, the high-pressure airflow can help blow away the snow and dust trapped between the brush bristles, preventing secondary pollution of the photovoltaic panel surface. Furthermore, the multiple nozzles are evenly distributed along the width of the mounting frame, which can completely cover the working area of ​​the cleaning brush, ensuring no cleaning dead corners. Especially in low-temperature environments, the high-pressure airflow can also generate a small amount of heat to help melt extremely thin ice layers, improving the cleaning adaptability under extreme climates. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the overall structure of the fixing frame of the present invention.

[0018] Figure 3 This is a bottom view of the overall structure of the fixing frame of the present invention.

[0019] Figure 4 This is a schematic diagram of the overall structure of the fixing frame and connecting compartment of the present invention.

[0020] Figure 5 This is a plan view of the overall structure of the fixing frame and connecting compartment of the present invention.

[0021] Figure 6 This is a schematic diagram of the overall structure of the spiral conveyor roller of the present invention.

[0022] Explanation of reference numerals in the attached drawings: 1. Vehicle body; 2. Robotic arm; 3. Fixing frame; 4. First drive motor; 5. Sweeping brush; 6. Rotating plate; 7. Snowplow; 8. Second drive motor; 9. Rotating shaft; 10. Spiral conveyor roller; 11. Fixing plate; 12. Connecting bin; 13. Third drive motor; 14. Conveying pipe; 15. High-pressure nozzle; 16. Connecting pipe; 17. Collection hopper; 18. Pressure sensor; 19. Centrifugal impeller. Detailed Implementation

[0023] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0024] Please see Figures 1 to 6 This embodiment provides a multi-functional cleaning device for photovoltaic panels, including a vehicle body 1, a robotic arm 2 and a fixed frame 3 located at one end of the robotic arm 2. The fixed frame 3 is hinged to one end of the robotic arm 2. The fixed frame 3 is provided with a cleaning component inside, which includes a snow removal unit and a transport unit. The snow removal unit includes a sweeping brush 5, a rotating plate 6, and a snow shovel 7. The sweeping brush 5 and the rotating plate 6 sweep snow by rotating, and the snow shovel 7 shovels snow by translating. The transport unit includes a spiral conveyor roller 10 and a centrifugal impeller 19, which transport snow by rotating.

[0025] Among them, the robotic arm 2 is a commonly used technical means in this field and is an existing technology. Its specific structural diagram is not shown. Its specific operation method is as follows: the control system built into the vehicle body 1 receives instructions and drives the multi-joint (such as shoulder, elbow and wrist) of the robotic arm 2 to move in coordination, so as to realize the position adjustment of the fixed frame 3 in three-dimensional space (including lifting, extension and rotation) to adapt to photovoltaic panels with different installation angles and heights. When cleaning, the robotic arm 2 drives the fixed frame 3 to move along the parallel direction of the panel surface according to the distribution of the photovoltaic panel array. At the same time, the contact angle between the fixed frame 3 and the photovoltaic panel surface is adjusted through the hinge structure to ensure that the snow removal units such as the cleaning brush 5 and the snow removal blade 7 accurately contact the panel surface. After the operation is completed, it can be folded and stored to reduce space occupation.

[0026] Reference Figures 1-6 A first drive motor 4 is fixedly installed on one side of the fixed frame 3. A rotating shaft 9 is rotatably connected inside the fixed frame 3. Multiple sets of cleaning brushes 5 and rotating plates 6 are provided, and multiple cleaning brushes 5 and rotating plates 6 are fixedly installed on the outer wall of the rotating shaft 9. The output end of the first drive motor 4 passes through one side of the fixed frame 3 and is fixedly connected to one end of the rotating shaft 9. Second drive motors 8 are fixedly installed on both sides of the fixed frame 3. A fixed plate 11 is fixedly installed inside the fixed frame 3. Two spiral conveying rollers 10 are provided, and both spiral conveying rollers 10 are rotatably connected inside the fixed frame 3. One end of each spiral conveying roller 10 is rotatably connected to the fixed plate 11. Each second drive motor 8... The output end of the motor 8 passes through one side of the fixed frame 3 and is fixedly connected to one end of the corresponding spiral conveying roller 10. The snowplow 7 is fixedly installed on one side of the fixed frame 3. The snowplow 7 is located below the two spiral conveying rollers 10. The top of the snowplow 7 is inclined. A connecting chamber 12 is connected to one side of the fixed frame 3. The centrifugal impeller 19 is located inside the connecting chamber 12 and is rotatably connected. A third drive motor 13 is fixedly installed on one side of the connecting chamber 12. The output end of the third drive motor 13 passes through one side of the connecting chamber 12 and is fixedly connected to one end of the centrifugal impeller 19. A conveying pipe 14 is connected to one side of the connecting chamber 12. A collection hopper 17 is fixedly installed on one side of the vehicle body 1.

[0027] The cleaning component can clean the snow on the photovoltaic panel and transport the snow. The specific cleaning method is as follows: First, under the command of the built-in control system of the vehicle body 1, the robotic arm 2 achieves lifting, extension and rotation through the coordinated movement of multiple joints (shoulder, elbow and wrist) to accurately move the fixed frame 3 above the photovoltaic panel. Then, the contact angle between the fixed frame 3 and the surface of the photovoltaic panel is adjusted through the hinge structure to ensure that the cleaning component is accurately aligned with the panel surface. During operation, the robotic arm 2 drives the fixed frame 3 to move smoothly along the parallel direction of the photovoltaic panel surface. At the same time, the first drive motor 4 starts and drives the rotating shaft 9 to rotate, so that multiple sets of cleaning brushes 5 and rotating plates 6 rotate synchronously. The cleaning brushes 5 use their flexible bristles to sweep the snow in a directional manner towards the spiral conveying roller 10, which can not only efficiently remove the snow but also avoid scratching the surface of the photovoltaic panel. In addition, the rotating plate 6 assists in gathering the snow towards the spiral conveying roller 10 through the thrust generated by the rotation, thereby improving the concentration of cleaning. Meanwhile, the second drive motors 8 on both sides of the fixed frame 3 drive two spiral conveying rollers 10 to rotate in opposite directions, gathering the snow on both sides towards the middle. The reverse rotation of the double rollers enhances the snow gathering effect and avoids blockage on one side. The snow shovel 7 located below the spiral conveying rollers 10 moves with the fixed frame 3, shoveling up the compacted snow or ice and guiding it to the working area of ​​the spiral conveying rollers 10, improving the ability to handle hard snow. Subsequently, the gathered snow is transported to the connecting bin 12 on one side of the fixed frame 3. The third drive motor 13 drives the centrifugal impeller 19 to rotate at high speed, using centrifugal force to quickly throw the snow through the conveying pipe 14 to the outside of the vehicle body 1, and then collect it centrally through the collection bin 17 on one side of the vehicle body 1. The centrifugal impeller 19 significantly improves the snow transport efficiency, ensuring that the snow is transferred to the designated area in a timely manner and avoiding accumulation around the photovoltaic panels.

[0028] The combination of the sweeping brush 5, rotating plate 6, and snowplow 7 in the sweeping assembly can adapt to different types of snow. The flexible sweeping brush 5 can efficiently remove loose snow without damaging the photovoltaic panel coating. The rotating plate 6 directs and gathers the snow, improving the concentration of sweeping. The inclined snowplow 7 can effectively scoop up and compact snow and ice, solving the problem of poor adaptability of a single sweeping component. Furthermore, the reverse rotation of the double helical conveying roller 10 can efficiently gather the snow towards the center, avoiding unilateral blockage. Combined with the centrifugal force generated by the high-speed rotation of the centrifugal impeller 19, the snow can be quickly transported to the collection hopper through the conveying pipe 14. 17. Centralized storage reduces secondary snow accumulation around the photovoltaic panels. Meanwhile, each component is precisely controlled by an independent drive motor (the first drive motor 4 drives the cleaning brush 5 and the rotating plate 6, the second drive motor 8 drives the spiral conveyor roller 10, and the third drive motor 13 drives the centrifugal impeller 19). In conjunction with the robotic arm 2, the fixed frame 3 moves smoothly along the photovoltaic panels. This system can adapt to photovoltaic panels with different installation angles and heights, ensuring cleaning coverage and efficiency, reducing manual intervention costs, and guaranteeing the cleaning effect of photovoltaic panels under extreme weather conditions. This helps to improve power generation efficiency and equipment lifespan.

[0029] Reference Figures 1-5 The mounting bracket 3 has multiple high-pressure nozzles 15 on one side, and the top of the multiple high-pressure nozzles 15 is connected to a connecting pipe 16. All the multiple high-pressure nozzles 15 are located on one side of the cleaning brush 5.

[0030] The cleaning brush 5 can be cleaned by multiple high-pressure nozzles 15. Specifically, one end of the connecting pipe 16 is connected to the high-pressure air compressor (existing technology, not shown in the figure) on the vehicle body 1. When the cleaning brush 5 starts to perform preliminary snow removal on the surface of the photovoltaic panel, the air compressor is turned on simultaneously through the built-in control system of the vehicle body 1. The high-pressure airflow is diverted to each high-pressure nozzle 15 through the connecting pipe 16. The nozzles spray the airflow in a directional manner to the cleaning brush 5. If it is necessary to adjust the cleaning intensity, the air compressor pressure can be adjusted through the control system, thereby changing the nozzle jet pressure to adapt to different residual pollutant conditions.

[0031] By setting multiple high-pressure nozzles 15, the system can remove the tiny snow particles, snow fragments embedded in the gaps between the panels, and attached dust that remain after the cleaning brush 5 has been used. At the same time, the high-pressure airflow can help blow away the snow and dust trapped between the bristles of the cleaning brush 5, preventing secondary pollution of the photovoltaic panel surface. Furthermore, the multiple nozzles are evenly distributed along the width of the fixing frame 3, which can completely cover the working range of the cleaning brush 5, ensuring no cleaning dead corners. Especially in low-temperature environments, the high-pressure airflow can also generate a small amount of heat to help melt the extremely thin ice layer, improving the cleaning adaptability under extreme climates.

[0032] Reference Figure 3 The bottom of the mounting bracket 3 is equipped with multiple pressure sensors 18.

[0033] By setting pressure sensor 18, the contact pressure between the fixing frame 3 and the photovoltaic panel surface can be monitored in real time. This prevents excessive pressure from scratching the photovoltaic panel coating or breaking the glass, or insufficient pressure from causing the sweeping brush 5 and snowplow 7 to not adhere tightly to the panel surface and miss snow. At the same time, it can help determine whether the sweeping components are in a horizontal working state, ensuring uniform sweeping force in different areas and adapting to the fragile surface characteristics of the photovoltaic panel and the operational needs of different installation angles. In addition, the pressure data can be fed back to the vehicle body 1 control system. When encountering abnormal conditions such as bulges or dents on the photovoltaic panel surface, the system can adjust the movement of the robotic arm 2 in time to avoid equipment collision damage and improve operational safety and reliability.

[0034] Among them, the pressure sensor 18 is model FSH8-200N, which can accurately monitor the contact pressure of 50-200N between the mounting frame 3 and the photovoltaic panel. It is suitable for the extreme climate and high precision requirements of photovoltaic panel cleaning. The specific operation method is as follows: multiple pressure sensors 18 are evenly distributed along the bottom of the mounting frame 3. The pressure sensors 18 are connected to the control system of the vehicle body 1 through wires. Before operation, when the robotic arm 2 moves the mounting frame 3 close to the photovoltaic panel, the pressure sensors 18 first contact the panel surface and transmit pressure data in real time. The control system, according to the preset pressure threshold (which can be adjusted according to the photovoltaic panel material), through the mechanical... The hinge structure of arm 2 fine-tunes the height and angle of the fixing frame 3 until the pressure value is within a reasonable range. During operation, the sensor continuously monitors pressure changes. If the pressure exceeds the threshold due to terrain undulations or unevenness of the panel, the control system immediately drives the robotic arm 2 to adjust the position of the fixing frame 3 to ensure that the cleaning component always adheres to the panel with safe and effective pressure. At the same time, the pressure data can be displayed synchronously on the operation interface of the vehicle body 1 for the operator to monitor in real time. If the pressure sensor 18 detects a sudden increase in pressure (such as when encountering an obstacle), the system will also trigger an alarm and suspend operation to further ensure the safety of the equipment and photovoltaic panels.

[0035] The controller described above is a common technique in this field and is existing technology; it is not shown in the figure.

[0036] Working principle: First, the robotic arm 2 (multi-joint coordinated movement) precisely moves the fixing frame 3 above the photovoltaic panel. The hinge structure is used to adjust the contact angle between the fixing frame 3 and the panel surface. At the same time, the pressure sensor 18 at the bottom of the fixing frame 3 monitors the contact pressure in real time and feeds the data back to the control system. The system then fine-tunes the height and angle of the fixing frame 3 to ensure that the pressure is within a safe and effective range, avoiding damage to the photovoltaic panel or the leakage of snow. During operation, the robotic arm 2 drives the fixed frame 3 to move parallel to the surface of the photovoltaic panel, and the first drive motor 4 drives the rotating shaft 9 to rotate, so that multiple sets of sweeping brushes 5 (flexible bristles) sweep the loose snow in a directional manner, and the rotating plate 6 assists in gathering the snow towards the spiral conveying roller 10. At the same time, the high-pressure air compressor on the vehicle body 1 is turned on, and the high-pressure airflow is diverted through the connecting pipe 16 to multiple high-pressure nozzles 15 on one side of the sweeping brush 5 to blow away the small snow particles, snow accumulated in the gaps between the panels, and snow dust carried by the bristles of the sweeping brush 5 after sweeping, so as to prevent secondary pollution. At the same time, the second drive motors 8 on both sides of the fixed frame 3 drive the two spiral conveying rollers 10 to rotate in opposite directions, gathering the snow on both sides towards the middle. The snow shovel 7, which is inclined below, moves with the fixed frame 3, shoveling up and compacting the snow and ice and guiding it to the spiral conveying rollers 10. The gathered snow is transported to the connecting bin 12. The third drive motor 13 drives the centrifugal impeller 19 to rotate at high speed, using centrifugal force to throw the snow through the conveying pipe 14 to the collection bin 17 on one side of the vehicle body 1 for centralized storage. Throughout the operation, pressure sensor 18 continuously monitors pressure changes. If an abnormality occurs on the panel surface or an obstacle causes the pressure to exceed the threshold, the control system immediately adjusts the movement of robotic arm 2 or triggers an alarm to suspend the operation. Ultimately, this achieves the cleaning of snow accumulation on the photovoltaic panels, adapting to different snow types, photovoltaic panel installation angles, and extreme weather conditions, ensuring cleaning efficiency and equipment safety, and helping to improve the power generation efficiency of the photovoltaic panels.

[0037] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A multifunctional cleaning device for photovoltaic panels, characterized in that, The system includes a vehicle body (1), a robotic arm (2) and a fixed frame (3) located at one end of the robotic arm (2), characterized in that the fixed frame (3) is hinged to one end of the robotic arm (2), and the fixed frame (3) is provided with a cleaning assembly inside, the cleaning assembly including a snow removal unit and a transport unit; The snow removal unit includes a sweeping brush (5), a rotating plate (6), and a snow shovel (7). The sweeping brush (5) and the rotating plate (6) sweep snow by rotating, and the snow shovel (7) shovel snow by translating. The transport unit includes a spiral conveyor roller (10) and a centrifugal impeller (19), which transport snow by rotating.

2. The multifunctional cleaning device for photovoltaic panels as described in claim 1, characterized in that, A first drive motor (4) is fixedly installed on one side of the fixed frame (3). A rotating shaft (9) is rotatably connected inside the fixed frame (3). The number of cleaning brushes (5) and rotating plates (6) is set to multiple sets. Multiple cleaning brushes (5) and rotating plates (6) are fixedly installed on the outer wall of the rotating shaft (9). The output end of the first drive motor (4) passes through one side of the fixed frame (3) and is fixedly connected to one end of the rotating shaft (9).

3. The multifunctional cleaning device for photovoltaic panels as described in claim 2, characterized in that, The fixed frame (3) is fixedly installed with a second drive motor (8) on both sides. The fixed frame (3) is fixedly installed with a fixed plate (11). The number of the spiral conveying rollers (10) is set to two. The two spiral conveying rollers (10) are rotatably connected to the inside of the fixed frame (3). One end of the two spiral conveying rollers (10) is rotatably connected to the fixed plate (11). The output end of each second drive motor (8) passes through one side of the fixed frame (3) and is fixedly connected to one end of the corresponding spiral conveying roller (10).

4. The multifunctional cleaning device for photovoltaic panels as described in claim 3, characterized in that, The snowplow (7) is fixedly installed on one side of the fixed frame (3). The snowplow (7) is located below the two spiral conveying rollers (10), and the top of the snowplow (7) is inclined.

5. A multifunctional cleaning device for photovoltaic panels as described in claim 1, characterized in that, One side of the fixed frame (3) is connected to the connecting chamber (12). The centrifugal impeller (19) is located inside the connecting chamber (12) and is rotatably connected. A third drive motor (13) is fixedly installed on one side of the connecting chamber (12). The output end of the third drive motor (13) passes through one side of the connecting chamber (12) and is fixedly connected to one end of the centrifugal impeller (19).

6. A multifunctional cleaning device for photovoltaic panels as described in claim 5, characterized in that, One side of the connecting compartment (12) is connected to a conveying pipe (14), and a collection hopper (17) is fixedly installed on one side of the vehicle body (1).

7. A multifunctional cleaning device for photovoltaic panels as described in claim 1, characterized in that, The fixing frame (3) has multiple high-pressure nozzles (15) on one side, and the top of the multiple high-pressure nozzles (15) is connected to a connecting pipe (16). The multiple high-pressure nozzles (15) are all located on one side of the cleaning brush (5).

8. A multifunctional cleaning device for photovoltaic panels as described in claim 1, characterized in that, The bottom of the mounting bracket (3) is provided with multiple pressure sensors (18).

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