Self-propelled solar panel cleaning device

Abstract

The cleaning device is a self-propelled solar panel cleaning device, wherein guide rails are provided on both sides of the solar panel, and a roller brush is connected between the two guide rails, which can slide along the guide rails and can be pressed on the surface of the solar panel to rotate freely. A transverse axis sprocket connected to the transverse axis of the roller brush is connected to a supporting shell at one end of the roller brush, and two tensioning sprockets are provided on both sides of the transverse axis sprocket, which drive the transverse axis sprocket to rotate through the chain, and the tensioning sprocket provides tensioning force for the chain to ensure the chain driving effect, and the transverse axis sprocket drives the roller brush to rotate on the surface of the solar panel to achieve cleaning; in addition, the lower part of the chain is fixedly connected to the lower part of the supporting shell, so that while the roller brush rotates, the chain can also pull the roller brush to slide between the two guide rails, so that the roller brush can move back and forth on the surface of the solar panel to clean, and only one driving component is required to achieve the two compound actions of the roller brush, with high cleaning efficiency and good cleaning effect, and the overall structure is simple and the operation is stable, which is conducive to comprehensive promotion in the market.

Description

Technical Field

[0001] The present invention relates to the technical field of solar power generation equipment, and in particular to a self-driven solar panel cleaning device. Background Art

[0002] In recent years, solar panels have been widely adopted and adopted worldwide. Their widespread deployment has transformed traditional energy structures, significantly reducing fossil fuel use and greenhouse gas emissions, and contributing to global warming and energy security challenges. Solar panels are typically covered with high-quality glass. Glass cleanliness is crucial for efficient solar panel absorption. However, solar panels are deployed in arrays outdoors, and dust inevitably accumulates on the glass. This is particularly problematic in heavily polluted or desert regions. Failure to promptly remove accumulated dust can significantly reduce solar energy conversion efficiency and waste energy. Therefore, regular panel cleaning is crucial. Currently available cleaning devices primarily utilize freely movable robotic arms, which are complex, require high precision during mobile cleaning, and are expensive. Alternatively, standalone cleaning devices can be installed directly on the solar panels. However, these devices suffer from issues such as suboptimal cleaning results, unstable operation, and the need for multiple drive components. Therefore, there is still room for improvement in solar panel cleaning systems. Summary of the Invention

[0003] In order to solve the above problems, the present invention proposes a self-driven solar panel cleaning device.

[0004] The technical solution of the present invention is: a self-driven solar panel cleaning device, including a cleaning mechanism installed above the solar panel, the cleaning mechanism including a guide rail A, a guide rail B, a roller brush laterally connected between the two guide rails, and a driving assembly, the guide rail A and the guide rail B are respectively fixedly connected to both sides of the solar panel along the length direction, the lower part of the roller brush is pressed on the surface of the solar panel, the guide rail A is slidably connected to a sliding member, the middle of the sliding member is provided with a vertical rod, the upper end of the vertical rod is rotatably connected to the horizontal axis of the outer end of the roller brush through a support, the guide rail B is slidably connected to a support shell through a slider, a speed change mechanism is provided in the support shell, the output shaft of the speed change mechanism and the horizontal axis of the inner end of the roller brush are coaxially fixedly connected, the input shaft of the speed change mechanism is fixedly sleeved with a horizontal axis sprocket, and two tensioning sprockets are symmetrically provided on the support shell on both sides below the horizontal axis sprocket;

[0005] The driving assembly is arranged at the lower end of the solar panel, and a driving sprocket is fixedly mounted on the shaft of the driving assembly. A driven sprocket is arranged at the upper end of the solar panel. A chain is arranged between the driving sprocket and the driven sprocket. The upper chain passes around the lower part of the tensioning sprocket on one side, and goes up from the upper part of the horizontal axis sprocket, and then comes out from the lower part of the tensioning wheel on the other side. The lower chain is fixedly connected to the lower end of the support shell.

[0006] Preferably, the speed change mechanism includes a large gear and a small gear installed in the support housing, the small gear is fixedly sleeved in the middle of the output shaft, the large gear is fixedly sleeved in the middle of the input shaft, and the large gear and the small gear are meshed.

[0007] Preferably, a tensioning mechanism is provided on the support shell, which includes two tensioning shafts symmetrically connected to each other for rotation on both sides inside the support shell, and a torsion spring that can make the tensioning shaft rotate counterclockwise is sleeved in the middle of the two tensioning shafts, and the outer end of the tensioning shaft is vertically fixedly connected to a sprocket rod, and the two tensioning sprockets are respectively rotatably connected to the lower ends of the two sprocket rods.

[0008] Preferably, a cleaning pipe is fixedly connected between the supports on both sides of the roller brush and the support shell, and a plurality of cleaning branches are provided at equal intervals along the axial direction on the lower part of the cleaning pipe. The cleaning branches are inclined toward the roller brush and the lower end of the cleaning branches is close to the surface of the solar panel.

[0009] Preferably, the driving assembly includes a motor and a worm gear reducer, and the driving sprocket is fixedly sleeved on the shaft of the worm gear reducer.

[0010] Preferably, the guide rail A is configured as a grooved guide rail, the sliding member is configured as a roller assembly, and the roller assembly is slidably connected in the grooved guide rail.

[0011] The beneficial technical effects of the present invention are:

[0012] First, the cleaning device is provided with guide rails on both sides of the solar panel, and a roller brush is connected between the two guide rails, which can slide along the guide rails and can be pressed on the surface of the solar panel to rotate freely, and a transverse axis sprocket connected to the transverse axis of the roller brush is connected to the supporting shell at one end of the roller brush, and two tensioning sprockets are provided on both sides of the transverse axis sprocket, which are driven by the chain to rotate the transverse axis sprocket, and the tensioning sprocket provides tension for the chain to ensure the chain driving effect, and the transverse axis sprocket drives the roller brush to rotate on the surface of the solar panel to achieve cleaning; in addition, the lower part of the chain is fixedly connected to the lower part of the supporting shell, so that while the roller brush rotates, the chain can also pull the roller brush to slide between the two guide rails, accompanied by the cleaning pipe spraying water on the surface of the solar panel, so that the roller brush can move back and forth on the surface of the solar panel to clean, and only one driving component is required to achieve the two compound actions of the roller brush, with a clever structure and high driving efficiency.

[0013] Second, in the process of the chain driving the transverse axis sprocket to rotate and realize the roller brush rotation cleaning, the roller brush itself also slides along the guide rail. Therefore, the rotation speed of the transverse axis sprocket is the sum of the chain movement speed and the sliding speed of the roller brush. The rotation of the transverse axis sprocket and the sliding of the roller brush on the guide rail are driven by the same chain. The rotation speed of the transverse axis sprocket and the sliding speed of the roller brush are the same. Therefore, the rotation speed of the transverse axis sprocket is twice the chain speed. Combined with the acceleration of the roller brush rotation by the speed change mechanism, the roller brush can realize high-speed rotation cleaning of the surface of the solar panel. Only one stroke is needed to thoroughly clean the dust accumulated on the surface of the solar panel. The cleaning efficiency is high, the cleaning effect is good, and the overall structure is simple, the cost is low, and the operation is stable, which is conducive to comprehensive promotion in the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0015] Figure 2 yes Figure 1 Schematic diagram of the top view structure;

[0016] Figure 3 yes Figure 2 Schematic diagram of the C-direction structure;

[0017] Figure 4 yes Figure 2 AA sectional view;

[0018] Figure 5 yes Figure 2 BB cross-sectional view;

[0019] Figure 6 It is a schematic diagram of the three-dimensional structure of the cleaning mechanism of the present invention;

[0020] Figure 7 It is a partial enlarged view of the cleaning mechanism of the present invention;

[0021] Figure 8 It is a partial enlarged view of the cleaning mechanism of the present invention after removing one side plate of the supporting shell.

[0022] In the figure, 01. Solar panel, 02. Cleaning mechanism, 21. Guide rail A, 22. Guide rail B, 221. Support shell, 222. Slider, 23. Roller brush, 231. Horizontal axis, 24. Support, 241. Vertical rod, 242. Roller assembly, 25. Speed ​​change mechanism, 251. Input shaft, 252. Horizontal axis sprocket, 253. Large gear, 254. Small gear, 255. Output shaft, 26. Tensioning shaft, 261. Torsion spring, 262. Sprocket rod, 263. Tensioning sprocket, 27. Motor, 271. Worm gear reducer, 272. Driving sprocket, 28. Driven sprocket, 29. Chain, 30. Cleaning pipe, 301. Cleaning branch pipe, 31. Drag chain, 41. Bearing seat. DETAILED DESCRIPTION

[0023] Example 1, see the attached Figure 1-8 The cleaning device of claim 1 , wherein the cleaning device comprises a cleaning mechanism installed above the solar panel, the cleaning mechanism comprising a guide rail A, a guide rail B, a roller brush connected transversely between the two guide rails, and a driving assembly. The guide rail A and the guide rail B are respectively fixedly connected to both sides of the solar panel along the length direction, and the lower part of the roller brush is pressed on the surface of the solar panel. A sliding member is slidably connected to the guide rail A, and a vertical rod is provided in the middle of the sliding member. The upper end of the vertical rod is rotatably connected to the transverse axis of the outer end of the roller brush through a support. The guide rail B is slidably connected to a supporting shell through a slider. Therefore, the roller brush can slide back and forth along the two guide rails and can rotate freely between the two guide rails. A speed change mechanism is provided in the supporting shell, and the output shaft of the speed change mechanism is coaxially fixedly connected to the transverse axis of the inner end of the roller brush. The input shaft of the speed change mechanism is fixedly sleeved with a transverse axis sprocket. Two tensioning sprockets are symmetrically provided on the supporting shell on both sides below the transverse axis sprocket.

[0024] The driving assembly is arranged at the lower end of the solar panel, and a driving sprocket is fixedly mounted on the shaft of the driving assembly. A driven sprocket is arranged at the upper end of the solar panel. A chain is arranged between the driving sprocket and the driven sprocket. The upper chain passes around the lower part of the tensioning sprocket on one side, and goes up from the upper part of the transverse axis sprocket, and then passes out from the lower part of the tensioning wheel on the other side. The two tensioning sprockets are used to increase the tensioning force between the chain and the transverse axis sprocket to ensure the driving effect. The lower chain is fixedly connected to the lower end of the supporting shell. Therefore, not only can the rotation of the roller brush be realized by driving the transverse axis sprocket to rotate through the chain, but the chain can also drive the roller brush to slide along the guide rail through the supporting shell, thereby realizing the rotating cleaning action of the roller brush on the surface of the solar panel and the reciprocating movement of the roller brush on the surface of the solar panel.

[0025] The speed change mechanism includes a large gear and a small gear installed in the supporting shell. The small gear is fixedly sleeved in the middle of the output shaft, and the large gear is fixedly sleeved in the middle of the input shaft. The large gear and the small gear are meshed. The transverse axis sprocket drives the large gear to rotate through the input shaft, and the large gear drives the small gear to accelerate the movement. The small gear drives the roller brush to rotate at high speed through the output shaft. The speed change mechanism converts the power of the chain output end into high-speed rotation of the roller brush, and the speed at which the chain pulls the roller brush to slide is much lower than the rotation speed of the roller brush, which is equivalent to increasing the time for the roller brush to rotate and clean the surface of the solar panel. Only one stroke is needed to thoroughly clean the surface of the solar panel.

[0026] The support shell is provided with a tensioning mechanism, which includes two tensioning shafts symmetrically connected to each other on both sides of the support shell, and a torsion spring is sleeved in the middle of the two tensioning shafts to enable the tensioning shaft to rotate counterclockwise. The outer end of the tensioning shaft is vertically fixedly connected to a sprocket rod, and the two tensioning sprockets are respectively rotatably connected to the lower ends of the two sprocket rods; the tensioning shaft is driven to rotate counterclockwise by the torsion spring, and the two tensioning shafts rotate to drive the sprocket rods on both sides to swing toward each other, and the tensioning sprockets at the lower ends of the two sprocket rods can generate continuous pressure on the chain to keep the chain in a tensioned state, and can adaptively press the chain onto the transverse axis sprocket to ensure the driving effect of the transverse axis sprocket.

[0027] A cleaning pipe is fixedly connected between the supports on both sides of the roller brush and the supporting shell, and a plurality of cleaning branch pipes are provided at equal intervals along the axial direction at the lower part of the cleaning pipe. The cleaning branch pipes are inclined toward the roller brush and the lower ends of the cleaning branch pipes are close to the surface of the solar panel. When the roller brush is driven to slide back and forth on the surface of the solar panel, the cleaning liquid is sprayed from each cleaning branch pipe to the surface of the solar panel. During the movement of the roller brush, the roller brush contacts the cleaning liquid for cleaning, thereby realizing the dust cleaning function of the device; a drag chain is provided on one side of the cleaning device, and the cleaning liquid delivery pipe connected to the cleaning pipe is arranged in the drag chain, and various cables are also arranged in the drag chain. During the movement and cleaning of the cleaning device, the drag chain moves synchronously with the cleaning device to ensure the connectivity of the water channel and the circuit.

[0028] The driving assembly includes a motor and a worm gear reducer. The driving sprocket is fixedly mounted on the shaft of the worm gear reducer. The worm gear reducer can output a large torque to provide sufficient power for the sliding and rotation of the roller brush. The worm gear reducer can also provide self-locking for the chain. When the cleaning device stops working in an emergency, the cleaning mechanism can be locked to ensure the safety of the cleaning mechanism.

[0029] The guide rail A is set as a grooved guide rail, the sliding member is set as a roller assembly, the roller assembly is slidably connected in the grooved guide rail, the driving side of the cleaning mechanism adopts a sliding connection method of the guide rail and the slider, and the other side adopts a sliding connection method of the roller assembly and the grooved guide rail. The sliding connection method of the roller assembly and the grooved guide rail has smaller sliding friction than the guide rail and the slider connection method. Therefore, the forces on both sides of the roller brush are relatively balanced when the roller brush is driven to slide forward, which can reduce the friction during the movement of the roller brush, and the resistance encountered during the sliding cleaning process is smaller.

[0030] The working process and principle of the present invention are:

[0031] When the cleaning device is working on the surface of the solar panel, the drive assembly drives the chain to rotate between the active sprocket and the driven sprocket. The upper chain drives the horizontal axis sprocket to rotate, and the horizontal axis sprocket drives the roller brush to rotate through the speed change mechanism. At the same time, the lower chain pulls the roller brush to slide between the two guide rails. The roller brush can slide and clean the surface of the solar panel while rotating on its own. In addition, in the process of the chain driving the transverse axis sprocket to rotate and realize the roller brush rotation cleaning, the roller brush itself slides along the guide rail. Therefore, the rotation speed of the transverse axis sprocket is the sum of the chain movement speed and the sliding speed of the roller brush. The rotation of the transverse axis sprocket and the sliding of the roller brush on the guide rail are driven by the same chain. The rotation speed of the transverse axis sprocket and the sliding speed of the roller brush are the same. Therefore, the rotation speed of the transverse axis sprocket is twice the chain speed. Combined with the acceleration of the roller brush rotation by the speed change mechanism, the roller brush can realize high-speed rotation and cleaning of the surface of the solar panel. Only one stroke is needed to thoroughly clean the dust accumulated on the surface of the solar panel, with high cleaning efficiency and good cleaning effect. When the surface of the solar panel needs to be cleaned, the cleaning pipe is opened, and the cleaning fluid is sprayed from the various cleaning branches on the cleaning pipe to the surface of the solar panel. In the process of moving forward, the roller brush contacts the continuously sprayed cleaning fluid and rolls and rubs with the solar panel, thereby realizing automatic cleaning of the solar panel.

Claims

1. A self-propelled solar panel cleaning device, comprising a cleaning mechanism mounted above the solar panel, characterized by: The cleaning mechanism includes a guide rail A, a guide rail B, a roller brush laterally connected between the two guide rails, and a drive assembly. The guide rail A and the guide rail B are respectively fixedly connected to both sides of the solar panel along the length direction. The lower part of the roller brush is pressed on the surface of the solar panel. A sliding member is slidably connected to the guide rail A. A vertical rod is provided in the middle of the sliding member. The upper end of the vertical rod is rotatably connected to the horizontal axis of the outer end of the roller brush through a support. The guide rail B is slidably connected to a support shell through a slider. A speed change mechanism is provided in the support shell. The output shaft of the speed change mechanism and the horizontal axis of the inner end of the roller brush are coaxially fixedly connected. The input shaft of the speed change mechanism is fixedly sleeved with a horizontal axis sprocket. Two tensioning sprockets are symmetrically provided on the support shell on both sides below the horizontal axis sprocket. The driving assembly is arranged at the lower end of the solar panel, and a driving sprocket is fixedly mounted on the shaft of the driving assembly. A driven sprocket is arranged at the upper end of the solar panel. A chain is arranged between the driving sprocket and the driven sprocket. The upper chain passes around the lower part of the tensioning sprocket on one side, and goes up from the upper part of the horizontal axis sprocket, and then comes out from the lower part of the tensioning wheel on the other side. The lower chain is fixedly connected to the lower end of the support shell.

2. The self-propelled solar panel cleaning device according to claim 1, characterized in that: The speed change mechanism comprises a large gear and a small gear installed in a supporting housing. The small gear is fixedly sleeved in the middle of the output shaft, and the large gear is fixedly sleeved in the middle of the input shaft. The large gear and the small gear are meshed.

3. The self-propelled solar panel cleaning device according to claim 1, characterized in that: The support shell is provided with a tensioning mechanism, which includes two tensioning shafts symmetrically connected to each other on both sides of the support shell. A torsion spring is sleeved in the middle of the two tensioning shafts to enable the tensioning shaft to rotate counterclockwise. The outer end of the tensioning shaft is vertically fixedly connected to a sprocket rod, and the two tensioning sprockets are respectively rotatably connected to the lower ends of the two sprocket rods.

4. The self-propelled solar panel cleaning device according to claim 1, characterized in that: A cleaning pipe is fixedly connected between the supports on both sides of the roller brush and the support shell. The lower part of the cleaning pipe is provided with several cleaning branches at equal intervals along the axial direction. The cleaning branches are inclined toward the roller brush and the lower ends of the cleaning branches are close to the surface of the solar panel.

5. The self-propelled solar panel cleaning device according to claim 1, characterized in that: The driving assembly comprises a motor and a worm gear reducer, and the driving sprocket is fixedly sleeved on the shaft of the worm gear reducer.

6. The self-propelled solar panel cleaning device according to claim 1, characterized in that: The guide rail A is configured as a grooved guide rail, the sliding member is configured as a roller assembly, and the roller assembly is slidably connected in the grooved guide rail.

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