A cleaning device for photovoltaic modules of unmanned aerial vehicles
By using propellers to disperse the water flow and adjust its characteristics in a drone-based photovoltaic module cleaning device, the problems of poor water flow dispersion and complex connections are solved, achieving efficient and safe photovoltaic module cleaning and simplifying the maintenance process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGFEI GENERAL AVIATION (JIANGXI) CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-26
AI Technical Summary
Existing drone-based photovoltaic module cleaning devices suffer from poor water flow dispersion, making it difficult to cover large areas of photovoltaic modules. They also have low cleaning efficiency, dead zones, and the water flow speed cannot be flexibly adjusted, which may damage the modules. Furthermore, their connection structure is complex and maintenance time is long.
A drone-based photovoltaic module cleaning device was designed. The device disperses the concentrated jet into a vortex jet using blades, adjusts the water flow velocity and flow cross-section using an adjustment structure, and achieves rapid installation and disassembly using a simplified connection device.
It improves cleaning coverage and efficiency, avoids component damage, adapts to different levels of dirt, reduces repeated cleaning, simplifies the maintenance process, and reduces downtime.
Smart Images

Figure CN224405892U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of photovoltaic panel cleaning technology, and more specifically, it relates to a drone photovoltaic module cleaning device. Background Technology
[0002] In the operation of solar photovoltaic power plants, dirt such as dust, bird droppings, and fallen leaves on the surface of photovoltaic modules can significantly reduce power generation efficiency. According to statistics, dirt accumulation can reduce power generation by 10%-30%. Traditional photovoltaic module cleaning methods mainly rely on manual labor or ground machinery, which have many shortcomings. Manual cleaning requires workers to climb on top of the modules and wipe them with high-pressure water guns or cloths, which is not only labor-intensive and inefficient, but also poses a safety risk of falling from heights. In power plants with complex terrain such as mountains and deserts, it is difficult for people to reach the module locations manually, and the cleaning cost is high. Ground machinery cleaning is limited by the arrangement spacing of the photovoltaic array, making it difficult to work in depth, and large equipment can easily crush photovoltaic supports or cables, causing additional damage.
[0003] In existing technologies, traditional drone cleaning devices have poor water flow dispersion, mostly consisting of a single, concentrated jet, which is difficult to cover large areas of photovoltaic modules and easily leaves cleaning dead spots on the module surface, resulting in dirt residue and affecting the improvement of power generation efficiency. Existing equipment has a fixed water flow speed, which cannot be flexibly adjusted according to factors such as the degree of dirt on the module surface and the material. There are problems such as excessive water flow damaging the module surface or insufficient water flow resulting in incomplete cleaning. The connection structure of each component of the cleaning device is complex, requiring tools to fix screws or clips, which is time-consuming and labor-intensive during replacement and maintenance, increases drone downtime for maintenance, and reduces cleaning efficiency. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] In view of the problems existing in the prior art, this utility model provides a drone photovoltaic module cleaning device to solve the technical problem of poor water flow dispersion mentioned in the background art.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a drone photovoltaic module cleaning device, comprising a drone body, a water tank on the drone body, a water pump and a fixed pipe connected to one side of the water tank, a connecting device and an adjusting pipe on the fixed pipe, an adjusting sleeve inside the adjusting pipe, an adjusting plate rotatably mounted at the bottom of the adjusting sleeve, an adjusting groove cooperating with the adjusting plate on the adjusting pipe, a sliding sleeve fixedly mounted on the outside of the adjusting sleeve, a sliding plate mounted on the outside of the sliding sleeve, an adjusting plate fixedly mounted on the outside of the adjusting pipe, an adjusting screw rotatably mounted on the adjusting plate, the adjusting screw being threadedly connected to the sliding plate, a cleaning nozzle on the adjusting pipe, a support rod on the cleaning nozzle, a rotating rod rotatably mounted on the support rod, a paddle mounted on the rotating rod, and a mesh cover on one side of the cleaning nozzle.
[0008] The present invention is further configured such that one end of the adjusting screw passes through the adjusting plate and is fixedly provided with an adjusting gear, a rotating sleeve is provided on the outer side of the adjusting tube, and an adjusting gear ring that cooperates with the adjusting gear is provided on the inner wall of the rotating sleeve, so as to facilitate the rotation of the adjusting screw.
[0009] The present invention is further configured such that a rotating ring is provided on the adjusting tube, and the rotating sleeve is rotatably mounted on the adjusting tube through the rotating ring, thereby limiting the rotation position of the rotating sleeve.
[0010] The present invention is further provided with a sliding groove on the adjusting tube that cooperates with the sliding plate to restrict the movement direction of the sliding plate.
[0011] The present invention is further configured such that the connecting device includes a connecting plate, the connecting plate is semi-circular tube-shaped, the connecting plate is disposed on the fixed tube and the adjusting tube, the connecting plate is provided with a connecting block, and the fixed tube and the adjusting tube are provided with a connecting groove that cooperates with the connecting block. Through the cooperation of the connecting block and the connecting groove, the vertical movement of the fixed tube and the adjusting tube is restricted.
[0012] The present invention is further configured such that the fixed tube is provided with a connecting rod and the adjusting tube is provided with a connecting hole, thereby restricting the horizontal movement of the fixed tube and the adjusting tube.
[0013] The present invention is further configured such that the fixed tube is provided with a movable groove, a movable block is slidably provided on the movable groove, and the connecting rod is fixedly provided on the movable block to restrict the moving direction of the movable block.
[0014] The present invention is further configured such that a movable sleeve is rotatably provided on the outer side of the movable block, a movable thread is provided inside the movable sleeve, and a movable head is provided on the movable block to cooperate with the movable thread, so as to facilitate the movement of the movable block.
[0015] (III) Beneficial Effects
[0016] Compared with the prior art, this utility model provides a drone photovoltaic module cleaning device, which has the following beneficial effects:
[0017] 1. The water flow impacts the blades, causing them to rotate and breaking the concentrated jet into a vortex jet. The jet is then dispersed over a wide area through the mesh cover. Compared to traditional direct water flow, this increases the cleaning coverage area and can quickly remove dust, bird droppings, and other dirt from the surface of photovoltaic modules, improving cleaning efficiency and reducing the number of repeated cleaning cycles.
[0018] 2. By rotating the rotating sleeve, the transmission structure of the adjusting ring, adjusting gear, and adjusting screw drives the adjusting plate to change the cross-sectional area of the water flow. Based on Bernoulli's principle, the water flow rate can be infinitely adjusted. Low-speed water flow can be used for energy-saving cleaning of light dust, while high-speed water flow can be switched for deep cleaning of stubborn dirt, avoiding damage to components due to improper water flow and adapting to different working conditions.
[0019] 3. With the cooperation of the connecting block and the connecting groove, rotate the moving sleeve, and through the cooperation of the moving thread and the moving head, the connecting rod can be quickly inserted into or disengaged from the connecting hole, realizing the rapid installation and disassembly of the adjusting tube and the fixed tube, greatly reducing the downtime of the drone for maintenance and improving the efficiency of equipment use. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of a drone photovoltaic module cleaning device according to the present invention;
[0021] Figure 2 This is a cross-sectional view of the regulating pipe and cleaning nozzle in this utility model;
[0022] Figure 3 for Figure 2 A magnified schematic diagram of a portion of the structure of A in the diagram;
[0023] Figure 4 This is an exploded view of the connecting device in this utility model;
[0024] Figure 5 This is a cross-sectional view of the fixed tube in this utility model.
[0025] In the diagram: 1. UAV body; 2. Water tank; 3. Water pump; 4. Fixed pipe; 5. Adjusting pipe; 6. Adjusting sleeve; 7. Adjusting plate; 8. Adjusting groove; 9. Sliding sleeve; 10. Sliding plate; 11. Adjusting plate; 12. Adjusting screw; 13. Cleaning nozzle; 14. Support rod; 15. Rotating rod; 16. Propeller blade; 17. Mesh cover; 18. Adjusting gear; 19. Rotating sleeve; 20. Adjusting gear ring; 21. Rotating ring; 22. Sliding groove; 23. Connecting plate; 24. Connecting block; 25. Connecting groove; 26. Connecting rod; 27. Connecting hole; 28. Moving groove; 29. Moving block; 30. Moving sleeve; 31. Moving thread; 32. Moving head. Detailed Implementation
[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0029] Please see Figures 1-5A drone photovoltaic module cleaning device includes a drone body 1, a water tank 2 on the drone body 1, a water pump 3 and a fixed pipe 4 connected to one side of the water tank 2, a connecting device and an adjusting pipe 5 on the fixed pipe 4, an adjusting sleeve 6 inside the adjusting pipe 5, an adjusting plate 7 rotatably mounted at the bottom of the adjusting sleeve 6, an adjusting groove 8 on the adjusting pipe 5 that cooperates with the adjusting plate 7, a sliding sleeve 9 fixedly mounted on the outside of the adjusting sleeve 6, a sliding plate 10 on the outside of the sliding sleeve 9, an adjusting plate 11 fixedly mounted on the outside of the adjusting pipe 5, and an adjusting screw 12 rotatably mounted on the adjusting plate 11, the adjusting screw 12 being threadedly connected to the sliding plate 10. The regulating pipe 5 is equipped with a cleaning nozzle 13, a support rod 14, a rotating rod 15 rotatably mounted on the support rod 14, a paddle 16 mounted on the rotating rod 15, a mesh cover 17 on one side of the cleaning nozzle 13, one end of the regulating screw 12 passes through the regulating plate 11 and is fixedly mounted with an regulating gear 18, a rotating sleeve 19 is provided on the outside of the regulating pipe 5, an regulating gear ring 20 that cooperates with the regulating gear 18 is provided on the inner wall of the rotating sleeve 19, a rotating ring 21 is provided on the regulating pipe 5, the rotating sleeve 19 is rotatably mounted on the regulating pipe 5 through the rotating ring 21, and a sliding groove 22 that cooperates with the sliding plate 10 is provided on the regulating pipe 5.
[0030] In this embodiment, water is stored in the water tank 2 of the drone body 1. Water is pumped out through the fixed pipe 4, regulating pipe 5, and cleaning nozzle 13 by the water pump 3. The water flow impacts the propeller blades 16, causing them to rotate. This disperses the concentrated jet into a vortex jet, which then forms a wide-range scattering effect on the mesh cover 17, improving the cleaning effect on the photovoltaic modules. The mesh cover 17 can be fixed with threaded sleeves and bolts for easy installation and removal. When adjusting the water flow rate, the rotating sleeve 19 is rotated. The rotating sleeve 19, through the engagement of the adjusting gear ring 20 and the adjusting gear 18, drives the adjustment... Rotating the screw 12 causes the sliding plate 10 to move, which in turn moves the adjusting sliding sleeve 9 and the adjusting sleeve 6. The adjusting groove 8 is an inverted frustum-shaped groove. The adjusting plate 7 moves within the adjusting groove 8, thereby adjusting the direction of the adjusting plate 7. By adjusting the direction of the adjusting plate 7, the cross-sectional area through which the water flows is changed. According to Bernoulli's principle, when the cross-sectional area through which the water flows decreases, the flow velocity of the water increases. Thus, the flow velocity of the water is adjusted. Reversing the rotation of the sleeve 19 increases the cross-sectional area through which the water flows and reduces the flow velocity of the water.
[0031] Please see Figures 4-5As one embodiment of the connecting device: the connecting device includes a connecting plate 23, which is semi-circular and tubular. The connecting plate 23 is disposed on the fixed pipe 4 and the adjusting pipe 5. The connecting plate 23 is provided with a connecting block 24. The fixed pipe 4 and the adjusting pipe 5 are provided with connecting grooves 25 that cooperate with the connecting block 24. The fixed pipe 4 is provided with a connecting rod 26. The adjusting pipe 5 is provided with a connecting hole 27. The fixed pipe 4 is provided with a moving groove 28. A moving block 29 is slidably disposed on the moving groove 28. The connecting rod 26 is fixedly disposed on the moving block 29. A moving sleeve 30 is rotatably disposed on the outside of the moving block 29. A moving thread 31 is provided inside the moving sleeve 30. A moving head 32 that cooperates with the moving thread 31 is disposed on the moving block 29.
[0032] More specifically, when connecting the regulating pipe 5 and the cleaning nozzle 13, align the connecting block 24 on the connecting plate 23 of the regulating pipe 5 with the connecting hole 27 on the fixed pipe 4, and simultaneously align the connecting block 24 on the connecting plate 23 of the fixed pipe 4 with the connecting hole 27 on the regulating pipe 5. Rotate the moving sleeve 30, and the moving sleeve 30, through the cooperation of the moving thread 31 and the moving head 32, drives the moving block 29 to move along the moving groove 28, so that the moving block 29 drives the connecting rod 26 to be inserted into the connecting hole 27, thereby connecting and fixing the regulating pipe 5 and the fixed pipe 4. When disassembling the regulating pipe 5, rotate the moving sleeve 30 in the opposite direction to drive the connecting rod 26 away from the connecting hole 27, and it can be disassembled. The disassembly method is simple, convenient and efficient.
[0033] In summary, during use or operation of the overall equipment: water is stored in the water tank 2 of the drone body 1. Water is pumped out through the fixed pipe 4, regulating pipe 5, and cleaning nozzle 13 via the water pump 3. The water flow impacts the propeller blades 16, causing them to rotate. This disperses the concentrated jet into a vortex jet, which then forms a wide-range scattering effect on the mesh cover 17, improving the cleaning effect on the photovoltaic modules. The mesh cover 17 is secured with threaded sleeves and bolts for easy installation and removal. When adjusting the water flow rate, the rotating sleeve 19 is rotated. The rotation of the sleeve 19 is controlled by the adjusting gear ring 20 and the adjusting gear 18. The adjusting screw 12 rotates, which in turn moves the sliding plate 10. The sliding plate 10 then moves the adjusting sliding sleeve 9 and the adjusting sleeve 6. The adjusting groove 8 is an inverted frustum-shaped groove. The adjusting plate 7 moves within the adjusting groove 8, thereby adjusting the direction of the adjusting plate 7. By adjusting the direction of the adjusting plate 7, the cross-sectional area through which the water flows changes. According to Bernoulli's principle, when the cross-sectional area through which the water flows decreases, the flow velocity increases. Thus, the flow velocity of the water is adjusted. By reversing the rotation of the sleeve 19, the cross-sectional area through which the water flows can be increased, thereby reducing the flow velocity of the water.
[0034] When connecting the regulating pipe 5 and the cleaning nozzle 13, align the connecting block 24 on the connecting plate 23 of the regulating pipe 5 with the connecting hole 27 on the fixed pipe 4, and simultaneously align the connecting block 24 on the connecting plate 23 of the fixed pipe 4 with the connecting hole 27 on the regulating pipe 5. Rotate the moving sleeve 30, and the moving sleeve 30, through the cooperation of the moving thread 31 and the moving head 32, drives the moving block 29 to move along the moving groove 28, so that the moving block 29 drives the connecting rod 26 to be inserted into the connecting hole 27, thereby connecting and fixing the regulating pipe 5 and the fixed pipe 4. When disassembling the regulating pipe 5, rotate the moving sleeve 30 in the opposite direction to drive the connecting rod 26 away from the connecting hole 27, and it can be disassembled. The disassembly method is simple, convenient and efficient.
[0035] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.
[0036] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A drone photovoltaic module cleaning device, comprising a drone body (1), characterized in that: The main body (1) of the drone is provided with a water tank (2). A water pump (3) and a fixed pipe (4) are connected to one side of the water tank (2). A connecting device and an adjusting pipe (5) are provided on the fixed pipe (4). An adjusting sleeve (6) is provided inside the adjusting pipe (5). An adjusting plate (7) is rotatably provided at the bottom of the adjusting sleeve (6). An adjusting groove (8) that cooperates with the adjusting plate (7) is provided on the adjusting pipe (5). A sliding sleeve (9) is fixedly provided on the outside of the adjusting sleeve (6). A sliding plate (9) is provided on the outside of the sliding sleeve (9). 10) An adjusting plate (11) is fixedly provided on the outside of the adjusting tube (5). An adjusting screw (12) is rotatably provided on the adjusting plate (11). The adjusting screw (12) is threadedly connected to the sliding plate (10). A cleaning nozzle (13) is provided on the adjusting tube (5). A support rod (14) is provided on the cleaning nozzle (13). A rotating rod (15) is rotatably provided on the support rod (14). A paddle (16) is provided on the rotating rod (15). A mesh cover (17) is provided on one side of the cleaning nozzle (13).
2. The drone photovoltaic module cleaning device according to claim 1, characterized in that: One end of the adjusting screw (12) passes through the adjusting plate (11) and is fixedly provided with an adjusting gear (18). The outer side of the adjusting tube (5) is provided with a rotating sleeve (19), and the inner wall of the rotating sleeve (19) is provided with an adjusting toothed ring (20) that cooperates with the adjusting gear (18).
3. The drone photovoltaic module cleaning device according to claim 2, characterized in that: The regulating pipe (5) is provided with a rotating ring (21), and the rotating sleeve (19) is rotatably mounted on the regulating pipe (5) through the rotating ring (21).
4. The drone photovoltaic module cleaning device according to claim 1, characterized in that: The regulating tube (5) is provided with a sliding groove (22) that cooperates with the sliding plate (10).
5. The drone photovoltaic module cleaning device according to claim 1, characterized in that: The connecting device includes a connecting plate (23), which is a semi-circular tube. The connecting plate (23) is disposed on the fixed tube (4) and the adjusting tube (5). A connecting block (24) is provided on the connecting plate (23), and a connecting groove (25) that cooperates with the connecting block (24) is provided on the fixed tube (4) and the adjusting tube (5).
6. The drone photovoltaic module cleaning device according to claim 5, characterized in that: The fixed tube (4) is provided with a connecting rod (26), and the adjusting tube (5) is provided with a connecting hole (27).
7. The drone photovoltaic module cleaning device according to claim 6, characterized in that: The fixed tube (4) is provided with a movable groove (28), and a movable block (29) is slidably provided on the movable groove (28). The connecting rod (26) is fixedly installed on the movable block (29).
8. The drone photovoltaic module cleaning device according to claim 7, characterized in that: The movable block (29) is provided with a movable sleeve (30) on its outer side, and the movable sleeve (30) is provided with a movable thread (31) inside. The movable block (29) is provided with a movable head (32) that cooperates with the movable thread (31).