Unmanned aerial vehicle assembly for photovoltaic power station cleaning

By designing drone components for cleaning photovoltaic power plants with structures such as slots, slides, and springs, the problem that existing cleaning components cannot fit the photovoltaic panels at different tilt angles has been solved. This achieves efficient cleaning and protection of the photovoltaic panels, reduces maintenance costs, and improves cleaning efficiency and resource utilization.

CN223891187UActive Publication Date: 2026-02-10ZHANGBEI HERUN ENERGY CO LTD
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Patent Information

Application Number
CN202520696146.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-02-10
Estimated Expiration
2035-04-14

AI Technical Summary

Technical Problem

Existing drones used for cleaning photovoltaic power plants cannot effectively fit different tilt angles when cleaning photovoltaic panels, which can easily damage the panels. Furthermore, the cleaning components lack cushioning, affecting their practicality.

Method used

A drone component for cleaning photovoltaic power plants has been designed, including a body, extension rod, wings, water tank, support rod, protective components, and cleaning components. Through structures such as slots, slides, and springs, the support rod can be stably installed and the cleaning brush can be flexibly adjusted, reducing damage to the photovoltaic panels. The spraying of cleaning water is controlled by a solenoid valve, thereby improving cleaning efficiency.

Benefits of technology

It enables convenient disassembly and installation of cleaning components, reduces maintenance costs, ensures uniformity of cleaning effect and protection of photovoltaic panels, reduces damage, makes rational use of water resources, and improves cleaning efficiency.

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Abstract

The utility model relates to the technical field of photovoltaic power station cleaning, and discloses an unmanned aerial vehicle assembly for photovoltaic power station cleaning, which comprises a vehicle body, an extension rod fixedly mounted at an extension position of the vehicle body far away from a center line, and a wing arranged at the top of the extension rod, and a water tank and a support rod are fixedly mounted on one surface of the vehicle body far away from the wing; a protection assembly and a cleaning assembly are arranged on the outer surface of the supporting rod, and the protection assembly comprises two protection sleeves attached to the supporting rod. According to the unmanned aerial vehicle assembly for photovoltaic power station cleaning, an L-shaped fixing groove formed in one side of a fixing ring is attached to a fixing plate on a mounting frame, a worker can conveniently disassemble and replace the cleaning assembly as needed, the maintenance cost is reduced, if the pressure is too large, a spring can be compressed, the acting force of a cleaning brush on a photovoltaic panel is reduced, otherwise, the spring can stretch, and the cleaning effect is improved. And the cleaning brush keeps proper cleaning pressure, so that the cleaning effect can be ensured, and damage such as scraping to the photovoltaic panel can be avoided to the greatest extent.
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Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power plant cleaning technology, specifically a drone component for cleaning photovoltaic power plants. Background Technology

[0002] A photovoltaic power station is a facility that uses solar photovoltaic cells to convert solar radiation into electrical energy. A photovoltaic power station often has multiple sets of photovoltaic panels to receive solar energy. However, after a long period of use, dust will remain on the photovoltaic panels, affecting their normal use. Therefore, timely cleaning is necessary. A common cleaning method is to use drones to spray water for cleaning.

[0003] Chinese Utility Model Patent Publication No. CN221908559U discloses a drone for cleaning photovoltaic power plants. This drone, through the cooperation of a water spray component, a motor, a support plate, and a brush, can not only spray and wash the photovoltaic panels but also brush them, thereby brushing off impurities adhering to the surface of the photovoltaic panels, reducing the amount of impurities remaining after cleaning and improving the cleaning effect. However, although this drone can clean photovoltaic panels, it lacks a buffer component for the cleaning components, making it difficult to clean at different tilt angles of the photovoltaic panels, which can easily damage the photovoltaic panels and result in poor practicality. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a drone component for cleaning photovoltaic power plants, which can effectively solve the problems in the prior art.

[0005] The technical solution adopted by this utility model is: a drone component for cleaning photovoltaic power stations, including a body and an extension rod fixedly installed on the outer extension of the body away from the center line and a wing set on the top of the extension rod. A water tank and a support rod are fixedly installed on the side of the body away from the wing. A protective component and a cleaning component are provided on the outer surface of the support rod.

[0006] The protective assembly includes two protective sleeves that fit against the support rod. An extension plate is fixedly installed at the end of the protective sleeve away from the machine body. A positioning bolt is threaded between the two protective sleeves.

[0007] The cleaning assembly includes a retaining ring, which is inserted into a mounting bracket. A rotating shaft is fixedly mounted on one end of the mounting bracket away from the machine body, and a cleaning brush is rotatably mounted on the outer surface of the rotating shaft.

[0008] Preferably, the protective sleeve has a slot on the side near the support rod, and the shape of the slot is the same as that of the support rod.

[0009] The above technical solution, through the design of the slot, facilitates the fit between the protective sleeve and the support rod, makes it easy to install the protective components on the outside of the support rod, and allows the protective components to contact the ground or landing platform during landing, thereby improving the service life of the support rod.

[0010] Preferably, a fixing groove with an "L"-shaped cross-section is provided on one side of the fixing ring, and a fixing plate that fits into the fixing groove is fixedly installed on the side of the mounting bracket near the fixing ring.

[0011] With the above technical solution, the "L"-shaped fixing groove on one side of the fixing ring fits into the fixing plate on the mounting bracket, making it convenient for staff to disassemble and replace the cleaning components when needed, thus reducing maintenance costs.

[0012] Preferably, the mounting bracket has a sliding groove on one side that is adapted to the rotating shaft, and the sliding groove and the rotating shaft are slidably connected.

[0013] Through the above technical solution, a sliding groove adapted to the rotating shaft is opened on one side of the mounting frame, and the two are slidably connected, so that the rotating shaft can move flexibly within the mounting frame. When the cleaning brush is cleaning the surface of the photovoltaic panel, if it encounters an uneven area, the rotating shaft can slide along the sliding groove, so that the cleaning brush can better fit the surface of the photovoltaic panel, ensuring the uniformity of the cleaning effect. At the same time, it can also buffer the impact force generated when the cleaning brush contacts the photovoltaic panel, reducing damage to the photovoltaic panel.

[0014] Preferably, a fixing block is fixedly installed on the top of the rotating shaft, a sliding sleeve is fixedly installed on the top of the fixing block, a connecting column is slidably connected to the inner surface of the sliding sleeve, and a spring connecting the fixing block and the mounting bracket is fixedly installed on the outer surface of the sliding sleeve and the connecting column.

[0015] Through the above technical solution, the fixed block at the top of the rotating shaft is connected to the sliding sleeve, which is slidably connected to the connecting column, and the two are connected by a spring. When the cleaning brush contacts the surface of the photovoltaic panel, the elasticity of the spring can further adjust the pressure of the cleaning brush on the photovoltaic panel. If the pressure is too high, the spring will be compressed, reducing the force of the cleaning brush on the photovoltaic panel. Conversely, the spring will extend, so that the cleaning brush maintains appropriate cleaning pressure, which can ensure the cleaning effect and avoid scratching and other damage to the photovoltaic panel to the greatest extent.

[0016] Preferably, a positioning ring is fixedly installed on the outer surface of the extension rod, and a water inlet pipe and a connecting pipe are fixedly installed on the other end of the positioning ring away from the extension rod. The other end of the connecting pipe is connected to the water tank and the two are interconnected.

[0017] Through the above technical solution, the positioning ring on the outer surface of the extension rod fixes the water inlet pipe and the connecting pipe. The other end of the connecting pipe is connected to the water tank, which facilitates water filling of the water tank. The positioning ring can stably fix the water inlet pipe and the connecting pipe, ensuring that the water pipe will not fall off due to shaking or external pulling during the flight of the drone. At the same time, the interconnection design between the connecting pipe and the water tank allows the clean water in the water tank to be smoothly delivered to the water inlet pipe.

[0018] Preferably, a solenoid valve is provided at the end of the water tank away from the machine body, and a nozzle is provided at the other end of the solenoid valve away from the water tank, and the solenoid valve, water tank and nozzle are interconnected.

[0019] Through the above technical solution, a solenoid valve is installed at the end of the water tank away from the machine body, and the solenoid valve is interconnected with the nozzle. The operator can control the opening and closing of the solenoid valve to precisely control the timing and flow rate of the cleaning water sprayed from the water tank. When the drone flies to the area of ​​the photovoltaic panel that needs to be cleaned, the solenoid valve is opened, and the cleaning water is sprayed out through the nozzle to pre-wet the surface of the photovoltaic panel. Combined with the scrubbing of the cleaning brush, the cleaning efficiency and cleaning effect can be improved. At the same time, the setting of the solenoid valve can also avoid the waste of water resources and realize the rational use of cleaning water.

[0020] Compared with the prior art, this utility model provides a drone component for cleaning photovoltaic power plants, which has the following beneficial effects:

[0021] 1. The cleaning drone component for this photovoltaic power station has an "L"-shaped fixing groove on one side of the fixing ring that fits into the fixing plate on the mounting frame, making it convenient for staff to disassemble and replace the cleaning component when needed, reducing maintenance costs. A sliding groove adapted to the rotating shaft is opened on one side of the mounting frame. When the cleaning brush contacts the surface of the photovoltaic panel, the elasticity of the spring can further adjust the pressure of the cleaning brush on the photovoltaic panel. If the pressure is too high, the spring will be compressed, reducing the force of the cleaning brush on the photovoltaic panel. Conversely, the spring will extend, keeping the cleaning brush at an appropriate cleaning pressure, which can ensure the cleaning effect while minimizing damage such as scratches to the photovoltaic panel.

[0022] 2. The drone component for cleaning photovoltaic power stations features a slot design that facilitates the fitting of the protective sleeve to the support rod. This allows for easy installation of the protective component onto the outside of the support rod and ensures contact with the ground or landing platform during landing, thereby extending the lifespan of the support rod. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the installation structure of the extension rod and positioning ring of this utility model;

[0026] Figure 4 This is a schematic diagram of the installation structure of the extension rod and positioning ring of this utility model;

[0027] Figure 5 This is a three-dimensional structural diagram of the support rod and protective components of this utility model;

[0028] Figure 6 This is a schematic diagram of the disassembled structure of the protective component of this utility model;

[0029] Figure 7 This is a schematic diagram of the disassembled structure of the cleaning component of this utility model;

[0030] Figure 8 This is a three-dimensional structural diagram of the cleaning component of this utility model.

[0031] The components are as follows: 1. Body; 2. Extension rod; 3. Wing; 4. Positioning ring; 5. Water inlet pipe; 6. Connecting pipe; 7. Water tank; 8. Solenoid valve; 9. Nozzle; 10. Support rod; 11. Protective components; 1101. Protective sleeve; 1102. Slot; 1103. Extension plate; 1104. Positioning bolt; 12. Cleaning components; 1201. Fixing ring; 1202. Fixing groove; 1203. Mounting bracket; 1204. Fixing plate; 1205. Slide groove; 1206. Connecting column; 1207. Sliding sleeve; 1208. Spring; 1209. Fixing block; 1210. Rotating shaft; 1211. Cleaning brush. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Example 1: As Figure 1-8 As shown, the present invention provides a drone component for cleaning photovoltaic power stations. The drone component for cleaning photovoltaic power stations includes a body 1, an extension rod 2 fixedly installed on the outer extension of the body 1 away from the center line, and a wing 3 set on the top of the extension rod 2. A water tank 7 and a support rod 10 are fixedly installed on the side of the body 1 away from the wing 3. A protective component 11 and a cleaning component 12 are provided on the outer surface of the support rod 10.

[0034] The protective assembly 11 includes two protective sleeves 1101 that fit against the support rod 10. An extension plate 1103 is fixedly installed at the end of the protective sleeve 1101 away from the body 1. A positioning bolt 1104 is threaded between the two protective sleeves 1101.

[0035] The cleaning component 12 includes a retaining ring 1201, a mounting bracket 1203 that is inserted into the retaining ring 1201, a rotating shaft 1210 that is fixedly installed at the end of the mounting bracket 1203 away from the body 1, and a cleaning brush 1211 that rotates on the outer surface of the rotating shaft 1210.

[0036] Specifically, the protective sleeve 1101 has a slot 1102 on the side near the support rod 10. The slot 1102 has the same shape as the support rod 10. The advantage is that the design of the slot 1102 makes it easy for the protective sleeve 1101 to fit into the support rod 10, and it is easy to install the protective component 11 on the outside of the support rod 10. In addition, the protective component 11 can also contact the ground or landing platform during landing, which can improve the service life of the support rod 10.

[0037] Specifically, a fixing groove 1202 with an "L"-shaped cross-section is provided on one side of the fixing ring 1201. A fixing plate 1204 that fits into the fixing groove 1202 is fixedly installed on the side of the mounting bracket 1203 near the fixing ring 1201. The advantage is that the "L"-shaped fixing groove 1202 on one side of the fixing ring 1201 fits into the fixing plate 1204 on the mounting bracket 1203, which makes it convenient for staff to disassemble and replace the cleaning component 12 when needed, reducing maintenance costs.

[0038] Specifically, a groove 1205 adapted to the rotating shaft 1210 is provided on one side of the mounting bracket 1203. The groove 1205 and the rotating shaft 1210 are slidably connected. The advantage is that the groove 1205 adapted to the rotating shaft 1210 is provided on one side of the mounting bracket 1203, and the two are slidably connected, so that the rotating shaft 1210 can move flexibly within the mounting bracket 1203. When the cleaning brush 1211 is cleaning the surface of the photovoltaic panel, if it encounters an uneven area, the rotating shaft 1210 can slide along the groove 1205, so that the cleaning brush 1211 can better fit the surface of the photovoltaic panel, ensuring the uniformity of the cleaning effect. At the same time, it can also buffer the impact force generated when the cleaning brush 1211 contacts the photovoltaic panel, reducing damage to the photovoltaic panel.

[0039] Example 2: Figure 2-8 As shown, this is an improvement on the previous embodiment.

[0040] Specifically, a fixing block 1209 is fixedly installed on the top of the rotating shaft 1210, and a sliding sleeve 1207 is fixedly installed on the top of the fixing block 1209. A connecting post 1206 is slidably connected to the inner surface of the sliding sleeve 1207. A spring 1208 connecting the fixing block 1209 and the mounting bracket 1203 is fixedly installed on the outer surfaces of the sliding sleeve 1207 and the connecting post 1206. The advantage is that the fixing block 1209 at the top of the rotating shaft 1210 is connected to the sliding sleeve 1207, and the sliding sleeve 1207 is slidably connected to the connecting post 1206. The two are connected by a spring 1208. When the cleaning brush 1211 contacts the surface of the photovoltaic panel, the elasticity of the spring 1208 can further adjust the pressure of the cleaning brush 1211 on the photovoltaic panel. If the pressure is too high, the spring 1208 will be compressed, reducing the force of the cleaning brush 1211 on the photovoltaic panel. Conversely, the spring 1208 will be extended, so that the cleaning brush 1211 maintains an appropriate cleaning pressure, which can ensure the cleaning effect and avoid scratching or other damage to the photovoltaic panel to the greatest extent.

[0041] Specifically, a positioning ring 4 is fixedly installed on the outer surface of the extension rod 2. A water inlet pipe 5 and a connecting pipe 6 are fixedly installed on the other end of the positioning ring 4 away from the extension rod 2. The other end of the connecting pipe 6 is connected to the water tank 7 and the two are interconnected. The advantage is that the positioning ring 4 on the outer surface of the extension rod 2 fixes the water inlet pipe 5 and the connecting pipe 6. The other end of the connecting pipe 6 is interconnected with the water tank 7, which makes it easy to fill the water tank 7 with water. The positioning ring 4 can stably fix the water inlet pipe 5 and the connecting pipe 6, ensuring that the water pipe will not fall off due to shaking or external pulling during the flight of the drone. At the same time, the interconnection design between the connecting pipe 6 and the water tank 7 allows the clean water in the water tank 7 to be smoothly delivered to the water inlet pipe 5.

[0042] Specifically, a solenoid valve 8 is installed at the end of the water tank 7 furthest from the body 1, and a nozzle 9 is installed at the other end of the solenoid valve 8 furthest from the water tank 7. The solenoid valve 8, the water tank 7, and the nozzle 9 are interconnected. The advantage is that the solenoid valve 8 is installed at the end of the water tank 7 furthest from the body 1, and the solenoid valve 8 is interconnected with the nozzle 9. The operator can precisely control the timing and flow rate of the cleaning water sprayed from the water tank 7 by controlling the opening and closing of the solenoid valve 8. When the drone flies to the photovoltaic panel area that needs to be cleaned, the solenoid valve 8 is opened, and the cleaning water is sprayed out through the nozzle 9 to pre-wet the surface of the photovoltaic panel. Combined with the scrubbing of the cleaning brush 1211, the cleaning efficiency and cleaning effect can be improved. At the same time, the setting of the solenoid valve 8 can also avoid the waste of water resources and realize the rational use of cleaning water.

[0043] Working principle: During use, the fuselage 1 achieves flight through the extended rod 2 and the top wing 3. The water tank 7 fixed below the fuselage 1 stores cleaning water and is connected to the water inlet pipe 5 fixed to the outer positioning ring 4 of the extended rod 2 via the connecting pipe 6, supplying water for cleaning operations. The two protective sleeves 1101 of the protective component 11 are tightly fitted to the support rod 10 through the slots 1102 and fixed by the positioning bolts 1104. The extension plate 1103 at the end away from the fuselage 1 acts as a buffer when the drone lands. The fixing ring 1201 of the cleaning component 12 is connected to the mounting plate through the "L"-shaped fixing groove 1202. The mounting plate 1204 on the frame 1203 is connected for easy installation and disassembly. The rotating shaft 1210 inside the mounting frame 1203 can slide in the slide groove 1205. The cleaning brush 1211 is installed on the rotating shaft 1210. When the cleaning brush 1211 contacts the photovoltaic panel, the elastic structure consisting of the sliding sleeve 1207, the connecting column 1206 and the spring 1208 connected to the top fixing block 1209 of the rotating shaft 1210 can adjust the pressure of the cleaning brush 1211 on the photovoltaic panel. The solenoid valve 8 at one end of the water tank 7 controls the cleaning water to be sprayed out through the nozzle 9 to pre-wet the surface of the photovoltaic panel. Then the cleaning brush 1211 performs the brushing operation.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drone component for cleaning photovoltaic power plants, comprising a body (1), an extension rod (2) fixedly installed on the outer edge of the body (1) away from the center line, and a wing (3) disposed on the top of the extension rod (2), characterized in that: A water tank (7) and a support rod (10) are fixedly installed on the side of the fuselage (1) away from the wing (3). The outer surface of the support rod (10) is provided with a protective component (11) and a cleaning component (12). The protective assembly (11) includes two protective sleeves (1101) that fit against the support rod (10). An extension plate (1103) is fixedly installed at one end of the protective sleeve (1101) away from the body (1). A positioning bolt (1104) is threaded between the two protective sleeves (1101). The cleaning component (12) includes a retaining ring (1201), which is inserted into a mounting bracket (1203). A rotating shaft (1210) is fixedly installed at one end of the mounting bracket (1203) away from the body (1), and a cleaning brush (1211) rotates on the outer surface of the rotating shaft (1210).

2. The drone component for cleaning photovoltaic power plants according to claim 1, characterized in that: The protective sleeve (1101) has a slot (1102) on the side near the support rod (10), and the shape of the slot (1102) is the same as that of the support rod (10).

3. The drone component for cleaning photovoltaic power plants according to claim 1, characterized in that: The fixing ring (1201) has a fixing groove (1202) with an "L" shaped cross section on one side, and the mounting bracket (1203) has a fixing plate (1204) that fits into the fixing groove (1202) on the side close to the fixing ring (1201).

4. A drone component for cleaning photovoltaic power plants according to claim 1, characterized in that: The mounting bracket (1203) has a sliding groove (1205) on one side that is adapted to the rotating shaft (1210), and the sliding groove (1205) and the rotating shaft (1210) are slidably connected.

5. A drone component for cleaning photovoltaic power plants according to claim 1, characterized in that: A fixing block (1209) is fixedly installed on the top of the rotating shaft (1210), and a sliding sleeve (1207) is fixedly installed on the top of the fixing block (1209). A connecting post (1206) is slidably connected to the inner surface of the sliding sleeve (1207), and a spring (1208) connecting the fixing block (1209) and the mounting bracket (1203) is fixedly installed on the outer surface of the sliding sleeve (1207) and the connecting post (1206).

6. A drone component for cleaning photovoltaic power plants according to claim 1, characterized in that: A positioning ring (4) is fixedly installed on the outer surface of the extension rod (2). A water inlet pipe (5) and a connecting pipe (6) are fixedly installed on the other end of the positioning ring (4) away from the extension rod (2). The other end of the connecting pipe (6) is connected to the water tank (7) and the two are interconnected.

7. A drone component for cleaning photovoltaic power plants according to claim 1, characterized in that: A solenoid valve (8) is provided at one end of the water tank (7) away from the machine body (1), and a nozzle (9) is provided at the other end of the solenoid valve (8) away from the water tank (7). The solenoid valve (8), the water tank (7) and the nozzle (9) are interconnected.

Citation Information

Patent Citations

  • Unmanned aerial vehicle for cleaning photovoltaic power station

    CN221908559U