Photovoltaic panel cleaning device
By using a servo motor to drive the screw and worm gear transmission, combined with an electric push rod and a pressure sensor, the problem of adapting the photovoltaic panel cleaning device to different angles was solved, achieving a highly efficient photovoltaic panel cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN OPTICAL SPACE-TIME ENVIRONMENT TECHNOLOGY CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-06-09
AI Technical Summary
Dust or stains on the surface of photovoltaic panels block sunlight and affect power generation efficiency. Existing cleaning devices are difficult to adapt to the different installation angles of photovoltaic panels in different rows, resulting in poor cleaning results.
A photovoltaic panel cleaning device was designed, which uses a servo motor to drive longitudinal and oblique screws, combined with worm gear transmission and electric push rod, to realize the movement, angle adjustment and pressure sensing of the cleaning brush, ensuring stable contact with the photovoltaic panel and cleaning effect.
It enables comprehensive cleaning of photovoltaic panels from different angles, improves the adaptability and cleaning efficiency of the cleaning device, and ensures the cleaning effect on the surface of the photovoltaic panels.
Smart Images

Figure CN224343145U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of photovoltaic panel maintenance technology, and more specifically to a photovoltaic panel cleaning device. Background Technology
[0002] Photovoltaic panels are facilities that convert solar energy into direct current energy using the photovoltaic effect of photovoltaic semiconductor materials. The core of a photovoltaic facility is the solar cell. The power generation efficiency of photovoltaic panels is affected by sunlight conditions. If there is dust or stains on the surface of the photovoltaic panels, it will block sunlight and affect the power generation efficiency. Therefore, they need to be cleaned regularly.
[0003] However, during photovoltaic panel installation, in order to pursue power generation efficiency, the photovoltaic panels are arranged in a dense matrix without interfering with each other, and the spacing between adjacent photovoltaic panels is small, which makes it difficult to clean the photovoltaic panels later. To solve this problem, a cleaning device is usually set above the photovoltaic panel installation area corresponding to a row of photovoltaic panels to clean the row of photovoltaic panels. However, because the installation angles of photovoltaic panels in different rows are different, the external cleaning device has a defect of poor fit and adaptability when it is mounted on the surface of photovoltaic panels in different rows.
[0004] In view of this, the present invention proposes a photovoltaic panel cleaning device. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a photovoltaic panel cleaning device to solve the problems existing in the background art.
[0006] This utility model provides the following technical solution: a photovoltaic panel cleaning device, including a mounting frame, a longitudinal screw rotatably connected to the upper surface of the mounting frame, and a first servo motor for driving the longitudinal screw to rotate is coaxially fixedly mounted on the surface of the mounting frame, a movable frame is threadedly connected to the surface of the longitudinal screw, an oblique screw rotatably connected to the bottom side of the movable frame, and a second servo motor for driving the oblique screw to rotate is coaxially fixedly mounted on the surface of the movable frame, an adjusting plate is threadedly connected to the surface of the oblique screw, a window is opened on the surface of the adjusting plate, a swing frame is arranged inside the window, and an angle adjustment component is arranged between the adjusting plate and the swing frame, an electric push rod is embedded in the surface of the swing frame, a connecting plate is fixedly mounted on the telescopic end of the electric push rod, a drive motor is arranged on the bottom side of the connecting plate, and a cleaning brush plate is arranged on the surface of the output shaft of the drive motor;
[0007] The angle adjustment assembly includes a transmission cavity with an adjustment plate inside. A third servo motor is fixedly mounted on the surface of the adjustment plate. The output shaft of the third servo motor extends into the transmission cavity and is fixedly mounted with a worm gear. A swing shaft is fixedly mounted on the surface of the swing frame. The swing shaft is rotatably connected to the adjustment plate. The swing shaft extends into the transmission cavity and is fixedly mounted with a worm wheel. The worm gear meshes with the worm wheel.
[0008] Furthermore, a longitudinal limiting slide bar is fixedly installed on the surface of the mounting bracket, and the movable bracket is slidably connected to the surface of the longitudinal limiting slide bar.
[0009] As a further description of the above technical solution: by setting a longitudinal limiting slide bar, the movement path of the mobile frame can be standardized and restricted, ensuring the stability of the mobile frame's movement.
[0010] Furthermore, an inclined limiting slide bar is fixedly installed on the surface of the movable frame, and an adjusting plate is slidably connected to the surface of the inclined limiting slide bar.
[0011] As a further description of the above technical solution: by setting an oblique limiting slide bar, the movement path of the adjusting plate can be regulated and restricted, ensuring the stability of the adjusting plate's movement.
[0012] Furthermore, the surface of the mounting bracket has four mounting holes, which are arranged in a rectangular array at the four corners of the bottom side of the mounting bracket.
[0013] As a further description of the above technical solution: by providing mounting holes, the mounting bracket can be fixed to the external structure.
[0014] Furthermore, a balance slide bar is fixedly installed on the surface of the connecting plate, and the balance slide bar is inserted into the surface of the swing frame.
[0015] As a further description of the above technical solution: by setting a balance slide bar, the extension and retraction end of the electric push rod can be protected against torsion.
[0016] Furthermore, the output shaft surface of the drive motor is rotatably connected to a jacket via a sealed bearing. A water inlet pipe is embedded in the surface of the jacket, and the water inlet end of the water inlet pipe is connected to an external tap water pipe. A conveying channel extending to the bristle surface of the cleaning brush plate is opened on the output shaft surface of the drive motor, and the conveying channel is connected to the inner cavity of the jacket.
[0017] As a further description of the above technical solution: When using the cleaning brush plate, external tap water can be continuously delivered to the surface of the brush bristles of the cleaning brush plate through the water inlet pipe, jacket and conveying channel to achieve the effect of cleaning the surface of the photovoltaic panel.
[0018] Furthermore, a bracket is fixedly mounted on the surface of the drive motor, and the water inlet pipe passes through the surface of the bracket.
[0019] As a further description of the above technical solution: by setting up a bracket, the position of the water inlet pipe can be supported, so that the water inlet pipe is far away from the cleaning brush plate.
[0020] Furthermore, a telescopic groove is fixedly installed at the bottom end of the connecting plate, the top side of the drive motor is slidably connected inside the telescopic groove, and a pressure sensor is fixedly installed on the inner wall of the telescopic groove. The top end of the drive motor abuts against the surface of the pressure sensor, and the pressure sensor is connected to the electric push rod. The pressure sensor is used to detect the contact effect between the cleaning brush plate and the external photovoltaic panel.
[0021] As a further description of the above technical solution: by setting a pressure sensor, when the drive motor drives the cleaning brush to clean the surface of the photovoltaic panel, the pressure sensor detects the pressure and transmits the signal to the external control system. Then, by driving the extension and retraction of the electric push rod, the contact effect between the cleaning brush and the photovoltaic panel is maintained.
[0022] The technical effects and advantages of this utility model are as follows:
[0023] 1. Compared with existing technologies, this photovoltaic panel cleaning device installs the mounting frame according to the rows of photovoltaic panels arranged externally. A first servo motor drives a longitudinal screw to rotate, which in turn drives the moving frame to move. A second servo motor drives an oblique screw to rotate, which in turn drives the adjusting plate to move. The drive motor drives the cleaning brush to rotate, achieving the purpose of longitudinal cleaning of the photovoltaic panel surface. During the overall installation and layout of the device, a third servo motor drives a worm gear to rotate according to the angle of the rows of photovoltaic panels. Based on the meshing of the worm gear and worm wheel, the pendulum shaft can be rotated to adjust the angle of the cleaning brush. With the help of an electric push rod to adjust the height of the connecting plate, it can meet the requirements of comprehensive cleaning of photovoltaic panels at different angles, thus improving the adaptability of the device.
[0024] 2. Compared with existing technologies, this photovoltaic panel cleaning device, by setting a longitudinal limiting slide bar, can regulate and restrict the movement path of the moving frame, ensuring the stability of the moving frame; by setting an oblique limiting slide bar, it can regulate and restrict the movement path of the adjusting plate, ensuring the stability of the adjusting plate; by setting mounting holes, it can fix the mounting frame to the external structure; by setting a balance slide bar, it can provide anti-torsion protection for the extension end of the electric push rod; when using the cleaning brush, external tap water can be continuously delivered to the brush surface of the cleaning brush through the water inlet pipe, jacket, and conveying channel to achieve the effect of cleaning the photovoltaic panel surface; by setting a bracket, it can support the position of the water inlet pipe; by setting a pressure sensor, when the drive motor drives the cleaning brush to clean the photovoltaic panel surface, the pressure sensor detects the pressure, transmits the signal to the external control system, and then drives the extension and retraction of the electric push rod to maintain the contact effect between the cleaning brush and the photovoltaic panel. Attached Figure Description
[0025] Figure 1This is a three-dimensional structural diagram of the present invention;
[0026] Figure 2 This is a three-dimensional structural diagram of the mobile frame of this utility model;
[0027] Figure 3 This is a schematic diagram of the adjusting plate structure of this utility model;
[0028] Figure 4 This is a cross-sectional view of the cleaning brush plate of this utility model;
[0029] Figure 5 This is a schematic diagram of the worm gear and worm wheel transmission installation structure of this utility model.
[0030] The attached diagram is labeled as follows: 1. Mounting bracket; 2. Longitudinal screw; 3. First servo motor; 4. Moving frame; 5. Angled screw; 6. Second servo motor; 7. Adjusting plate; 8. Swing frame; 9. Electric push rod; 10. Connecting plate; 11. Drive motor; 12. Cleaning brush plate; 13. Third servo motor; 14. Worm gear; 15. Swing shaft; 16. Worm wheel; 17. Longitudinal limit slide bar; 18. Angled limit slide bar; 19. Mounting hole; 20. Balance slide bar; 21. Jacket; 22. Water inlet pipe; 23. Conveying channel; 24. Support; 25. Telescopic groove; 26. Pressure sensor. Detailed Implementation
[0031] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The photovoltaic panel cleaning device involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0032] Reference Figures 1 to 5 This utility model provides a photovoltaic panel cleaning device, including a mounting frame 1. The surface of the mounting frame 1 has four mounting holes 19, which are arranged in a rectangular array at the four corners of the bottom side of the mounting frame 1.
[0033] When installing the overall photovoltaic panel cleaning device, the mounting frame 1 is arranged according to the rows of photovoltaic panels on the outside. Then, the mounting frame 1 is fixed to the external structure by inserting screws into the mounting holes 19. During installation, the entire device is connected to the external power control system through wires, and the overall cleaning device is controlled by the external control base station.
[0034] The upper surface of the mounting bracket 1 is rotatably connected to a longitudinal screw 2, and a first servo motor 3 that drives the longitudinal screw 2 to rotate is coaxially fixedly mounted on the surface of the mounting bracket 1. A movable bracket 4 is threadedly connected to the surface of the longitudinal screw 2.
[0035] The first servo motor 3 drives the longitudinal screw 2 to rotate, which in turn drives the moving frame 4 to move along the surface of the row of photovoltaic panels.
[0036] A longitudinal limiting slide bar 17 is fixedly installed on the surface of the mounting bracket 1, and the movable bracket 4 is slidably connected to the surface of the longitudinal limiting slide bar 17.
[0037] By setting the longitudinal limiting slide bar 17, the movement path of the mobile frame 4 can be regulated and restricted, ensuring the stability of the movement of the mobile frame 4.
[0038] The bottom side of the movable frame 4 is rotatably connected to an inclined screw 5, and a second servo motor 6 that drives the inclined screw 5 to rotate is coaxially fixedly installed on the surface of the movable frame 4. An adjustment plate 7 is threadedly connected to the surface of the inclined screw 5.
[0039] The second servo motor 6 drives the inclined screw 5 to rotate, which in turn drives the adjustment plate 7 to move.
[0040] An inclined limiting slide bar 18 is fixedly installed on the surface of the movable frame 4, and the adjusting plate 7 is slidably connected to the surface of the inclined limiting slide bar 18.
[0041] By setting the oblique limiting slide bar 18, the movement path of the adjusting plate 7 can be regulated and restricted, ensuring the stability of the movement of the adjusting plate 7.
[0042] The surface of the adjustment plate 7 has a window, and a swing frame 8 is provided inside the window. An electric push rod 9 is embedded in the surface of the swing frame 8, and a connecting plate 10 is fixedly installed at the telescopic end of the electric push rod 9.
[0043] By controlling the extension and retraction of the electric push rod 9, the distance between the cleaning brush plate 12 and the external photovoltaic panel can be adjusted.
[0044] A balance slide bar 20 is fixedly installed on the surface of the connecting plate 10, and the balance slide bar 20 is inserted into the surface of the swing frame 8.
[0045] By setting a balance slide bar 20, the telescopic end of the electric push rod 9 can be protected against torsion.
[0046] A drive motor 11 is provided on the bottom side of the connecting plate 10, and a cleaning brush plate 12 is provided on the surface of the output shaft of the drive motor 11.
[0047] After the cleaning brush 12 is brought close to the photovoltaic panel, the cleaning brush 12 is driven to rotate by the drive motor 11, which can achieve the purpose of cleaning the surface of the photovoltaic panel.
[0048] A sleeve 21 is rotatably connected to the output shaft surface of the drive motor 11 via a sealed bearing. A water inlet pipe 22 is embedded in the surface of the sleeve 21. The water inlet end of the water inlet pipe 22 is connected to an external tap water pipe. A conveying channel 23 extending to the bristle surface of the cleaning brush plate 12 is opened on the output shaft surface of the drive motor 11. The conveying channel 23 is connected to the inner cavity of the sleeve 21.
[0049] When using the cleaning brush plate 12, external tap water can be continuously delivered to the surface of the brush bristles of the cleaning brush plate 12 through the water inlet pipe 22, the jacket 21 and the delivery channel 23, so as to achieve the effect of cleaning the surface of the photovoltaic panel.
[0050] A bracket 24 is fixedly mounted on the surface of the drive motor 11, and the water inlet pipe 22 passes through the surface of the bracket 24.
[0051] By setting the bracket 24, the position of the water inlet pipe 22 can be supported, so that the water inlet pipe 22 is away from the cleaning brush plate 12.
[0052] A telescopic groove 25 is fixedly installed at the bottom of the connecting plate 10. The top side of the drive motor 11 is slidably connected inside the telescopic groove 25. A pressure sensor 26 is fixedly installed on the inner wall of the telescopic groove 25. The top of the drive motor 11 is pressed against the surface of the pressure sensor 26. The pressure sensor 26 is connected to the electric push rod 9. The pressure sensor 26 is used to detect the contact effect between the cleaning brush plate 12 and the external photovoltaic panel.
[0053] It is worth noting that by setting a pressure sensor 26, when the drive motor 11 drives the cleaning brush 12 to clean the surface of the photovoltaic panel, the pressure sensor 26 detects the pressure and transmits the signal to the external control system. Then, by driving the extension and retraction of the electric push rod 9, the contact effect between the cleaning brush 12 and the photovoltaic panel is maintained.
[0054] An angle adjustment assembly is provided between the adjustment plate 7 and the swing frame 8.
[0055] The angle adjustment assembly includes a transmission cavity with an adjustment plate 7 inside. A third servo motor 13 is fixedly mounted on the surface of the adjustment plate 7. The output shaft of the third servo motor 13 extends into the transmission cavity and is fixedly mounted with a worm gear 14. A swing shaft 15 is fixedly mounted on the surface of the swing frame 8. The swing shaft 15 is rotatably connected to the adjustment plate 7. The swing shaft 15 extends into the transmission cavity and is fixedly mounted with a worm wheel 16. The worm gear 14 meshes with the worm wheel 16.
[0056] It is worth noting that during the installation and deployment of the overall device, the worm gear 14 is driven to rotate by the third servo motor 13 according to the angle of the photovoltaic panels arranged in rows. Based on the meshing of the worm gear 14 and the worm wheel 16, the swing shaft 15 can be driven to rotate, thereby achieving the purpose of adjusting the angle of the cleaning brush plate 12. In conjunction with the electric push rod 9, the height of the connecting plate 10 can be adjusted, which can meet the effect of comprehensive cleaning of photovoltaic panels at different angles and improve the adaptability of the device.
[0057] Finally, it should be noted that the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
Claims
1. A photovoltaic panel cleaning device, comprising a mounting frame (1), characterized in that: The upper surface of the mounting bracket (1) is rotatably connected to a longitudinal screw (2), and a first servo motor (3) for driving the longitudinal screw (2) to rotate is coaxially fixedly mounted on the surface of the mounting bracket (1). A movable frame (4) is threadedly connected to the surface of the longitudinal screw (2). An oblique screw (5) is rotatably connected to the bottom side of the movable frame (4), and a second servo motor (6) for driving the oblique screw (5) to rotate is coaxially fixedly mounted on the surface of the movable frame (4). An adjusting plate (7) is threadedly connected to the surface of the oblique screw (5). A window is opened on the surface of the adjusting plate (7), and a swing frame (8) is provided inside the window. An angle adjustment component is provided between the adjusting plate (7) and the swing frame (8). An electric push rod (9) is embedded on the surface of the swing frame (8). A connecting plate (10) is fixedly mounted on the telescopic end of the electric push rod (9). A drive motor (11) is provided on the bottom side of the connecting plate (10), and a cleaning brush plate (12) is provided on the output shaft surface of the drive motor (11). The angle adjustment assembly includes a transmission cavity with an adjustment plate (7) inside. A third servo motor (13) is fixedly installed on the surface of the adjustment plate (7). The output shaft of the third servo motor (13) extends into the transmission cavity and is fixedly installed with a worm gear (14). A swing shaft (15) is fixedly installed on the surface of the swing frame (8). The swing shaft (15) is rotatably connected to the adjustment plate (7). The swing shaft (15) extends into the transmission cavity and is fixedly installed with a worm wheel (16). The worm gear (14) meshes with the worm wheel (16).
2. The photovoltaic panel cleaning device according to claim 1, characterized in that: The mounting bracket (1) is fixedly mounted with a longitudinal limiting slide rod (17), and the movable bracket (4) is slidably connected to the surface of the longitudinal limiting slide rod (17).
3. The photovoltaic panel cleaning device according to claim 1, characterized in that: An oblique limiting slide bar (18) is fixedly installed on the surface of the movable frame (4), and the adjusting plate (7) is slidably connected to the surface of the oblique limiting slide bar (18).
4. The photovoltaic panel cleaning device according to claim 1, characterized in that: The mounting bracket (1) has four mounting holes (19) on its surface. The four mounting holes (19) are arranged in a rectangular array at the four corners of the bottom side of the mounting bracket (1).
5. The photovoltaic panel cleaning device according to claim 1, characterized in that: A balance slide bar (20) is fixedly installed on the surface of the connecting plate (10), and the balance slide bar (20) is inserted into the surface of the swing frame (8).
6. The photovoltaic panel cleaning device according to claim 1, characterized in that: The output shaft surface of the drive motor (11) is rotatably connected to a sleeve (21) via a sealed bearing. A water inlet pipe (22) is embedded in the surface of the sleeve (21). The water inlet end of the water inlet pipe (22) is connected to an external tap water pipe. A conveying channel (23) extending to the bristle surface of the cleaning brush plate (12) is opened on the output shaft surface of the drive motor (11). The conveying channel (23) is connected to the inner cavity of the sleeve (21).
7. A photovoltaic panel cleaning device according to claim 6, characterized in that: A bracket (24) is fixedly mounted on the surface of the drive motor (11), and the water inlet pipe (22) passes through the surface of the bracket (24).
8. The photovoltaic panel cleaning device according to claim 1, characterized in that: The bottom end of the connecting plate (10) is fixedly installed with a telescopic groove (25), the top side of the drive motor (11) is slidably connected to the inside of the telescopic groove (25), and a pressure sensor (26) is fixedly installed on the inner wall of the telescopic groove (25). The top end of the drive motor (11) is pressed against the surface of the pressure sensor (26), and the pressure sensor (26) is connected to the electric push rod (9) by signal. The pressure sensor (26) is used to detect the contact effect between the cleaning brush plate (12) and the external photovoltaic panel.