Photovoltaic panel cleaning method combining spraying and blowing

By combining spraying and blowing, the problem of photovoltaic panel cleaning devices blocking photovoltaic panels has been solved, achieving thorough cleaning without affecting light energy absorption, and improving the ease of replacing cleaning brushes.

CN121664096AInactive Publication Date: 2026-03-13HUADIAN POWER INTERNATIONAL CORPORATION LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-03
Publication Date
2026-03-13
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing photovoltaic panel cleaning devices partially block the photovoltaic panels during cleaning, affecting light energy absorption, and the cleaning is incomplete and inefficient.

Method used

The cleaning method combines spraying and blowing. It connects to an external water source and air pump through water pipes and air pipes. A rotating drive unit drives the rotating rod to move the cleaning plate. The spray pipe sprays water to rinse, and the blower pipe dries the surface of the photovoltaic panel. Combined with the cleaning brush, it ensures thorough cleaning without obstructing the photovoltaic panel.

Benefits of technology

It achieves the goal of keeping photovoltaic panels dry after cleaning, with good cleaning effect and no impact on the light energy absorption area. The cleaning brush is also easy to disassemble and replace.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a photovoltaic panel cleaning method combining spraying and blowing. As the device is partially arranged above the photovoltaic panel and partially shields the photovoltaic panel, the device is not reasonable enough in structural design, and the light energy absorption area of the photovoltaic panel is reduced, the device needs to be improved. The method comprises the following steps that a rotary driving piece is started to drive a rotating rod to rotate, the rotating rod drives a driving bevel gear to rotate, and under the transmission effect of a driven bevel gear, a lead screw rotates in a strip-shaped groove; the sliding block drives the cleaning plate to move horizontally, the telescopic driving piece drives the brush plate to move downwards, so that the cleaning brush makes contact with the surface of the photovoltaic panel, and in the moving process of the cleaning plate, a water source enters the spraying pipe through the water guide pipe and is sprayed out through the spraying head to flush the photovoltaic panel; according to the photovoltaic panel cleaning device, a washing and washing combined mode is adopted, the cleaning effect is good, the cleaning plate moves back and forth on the surface of the photovoltaic panel, and cleaning is more thorough after cleaning is completed. The device is applied to photovoltaic panel surface cleaning.
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Description

Technical Field

[0001] This invention relates to the field of photovoltaic panel cleaning technology, specifically a photovoltaic panel cleaning method that combines spraying and blowing. Background Technology

[0002] Photovoltaic panels generally refer to photovoltaic (PV) modules, which are power generation devices that produce direct current (DC) electricity when exposed to sunlight. Nowadays, with the rapid development of the new energy industry, the photovoltaic industry, as an emerging energy sector, has followed market development trends and has a huge market demand. Since PV panels are generally installed outdoors, dust and debris in the air easily adhere to the surface of the PV panels. Over time, this accumulation will affect the absorption rate of light energy. Therefore, it is necessary to clean the surface of the PV panels regularly. In the past, cleaning work generally relied on manual labor, which was not only labor-intensive but also had low cleaning efficiency. Therefore, cleaning equipment is needed.

[0003] Chinese patent CN107309231A discloses a photovoltaic panel cleaning method that combines spraying and blowing. The bottom ends of the soap tank and the clean water tank are connected to the inlet end of a reversing valve through soap water pipe and clean water pipe, respectively. The outlet end of the reversing valve is connected to a cleaning pipe located on one side of the photovoltaic panel. The cleaning pipe has multiple cleaning nozzles on its wall. A cleaning device is provided on the photovoltaic panel. The cleaning device includes a cleaning roller positioned directly above the photovoltaic panel. The cleaning roller is mounted on a connecting shaft. Sliding screw blocks are fixed to both ends of the connecting shaft. A threaded through hole in the sliding screw block is threadedly connected to a screw rod that runs the entire length. The right end of the screw rod is fixed to the output shaft end of a synchronous motor.

[0004] Although the aforementioned cleaning device sprays the photovoltaic panel surface with soapy water and clean water respectively, and then uses the brush end and felt end to sweep away dust and water stains, the device is partially located above the photovoltaic panel, which partially blocks the photovoltaic panel. The device's structural design is not reasonable enough, reducing the area of ​​the photovoltaic panel that can absorb light energy, and therefore needs to be improved. Summary of the Invention

[0005] The purpose of this invention is to provide a photovoltaic panel cleaning method that combines spraying and blowing to solve the problems of partial obstruction and incomplete cleaning mentioned in the background art.

[0006] The above objectives are achieved through the following scheme: A method for cleaning photovoltaic panels using a combination of spraying and blowing, comprising the following steps: (1) Connect the water pipe and the air pipe to the external water source and the air pump respectively, start the rotary drive to drive the rotating rod to rotate, the rotating rod drives the active bevel gear to rotate and under the transmission action of the driven bevel gear, the screw rotates inside the strip groove; (2) The slider drives the cleaning plate to move horizontally, and the telescopic drive drives the brush plate to move downward, so that the cleaning brush contacts the surface of the photovoltaic panel. During the movement of the cleaning plate, the water source enters the spray pipe through the water guide pipe and is sprayed out through the nozzle to rinse the photovoltaic panel. (3) Next, the cleaning brush is used to scrub the photovoltaic panel. The cleaning effect is good. The cleaning brush moves back and forth on the surface of the photovoltaic panel to make the cleaning more thorough. After cleaning is completed; (4) Air is delivered into the blower pipe through the air duct, and the air is sprayed out through the exhaust pipe and blown onto the photovoltaic panel, so that the water stains on the surface of the photovoltaic panel dry quickly. By combining rinsing and blowing, the photovoltaic panel is kept dry after cleaning.

[0007] The photovoltaic panel cleaning method utilizes a combination of spraying and blowing. The cleaning plate is located inside the main body of the device. The main body of the device has a strip groove, and a lead screw is installed in the strip groove. The lead screw is screwed to a slider, and the slider contacts the cleaning plate. The main body of the device has a drive cavity, and a rotary drive component is installed in the drive cavity. The rotary drive component has a rotating rod fixed to it, and the rotating rod extends into the strip groove and is equipped with a driving bevel gear. A driven bevel gear is connected to the lead screw, and the driven bevel gear meshes with the driving bevel gear.

[0008] The photovoltaic panel cleaning method using a combination of spraying and blowing includes a spray pipe connected to a cleaning plate, a blowing pipe installed at the bottom of the cleaning plate, a brush plate below the cleaning plate with a dovetail groove inside the brush plate, a cleaning brush placed in the dovetail groove, and a water guide pipe and an air guide pipe on the cleaning plate. The water guide pipe passes through the cleaning plate and is connected to the spray pipe, and the air guide pipe passes through the cleaning plate and is connected to the blowing pipe.

[0009] The photovoltaic panel cleaning method using a combination of spraying and blowing includes a cleaning plate equipped with a telescopic drive component, the output end of which is connected to a brush plate; a rotary drive component is a dual-axis motor; a spray pipe equipped with equally spaced nozzles; an blowing pipe equipped with equally spaced exhaust pipes; and a cleaning brush connected to the brush plate by bolts. Beneficial effects

[0010] 1. This photovoltaic panel surface cleaning device not only has a more reasonable structural design, does not obstruct the photovoltaic panel and ensures the photovoltaic panel's absorption area of ​​light energy, but also adopts a combination of rinsing and blowing to keep the photovoltaic panel dry after cleaning, and improves the convenience of disassembling and replacing the cleaning brush.

[0011] 2. This invention comprises a lead screw, a driven bevel gear, a rotary drive component, a rotating rod, an active bevel gear, a slider, and a cleaning plate. The rotary drive component drives the rotating rod to rotate, which in turn drives the active bevel gear to rotate. Under the transmission action of the driven bevel gear, the lead screw rotates inside the strip groove. The slider drives the cleaning plate to move horizontally. During the movement of the cleaning plate, the cleaning work on the photovoltaic panel is completed. Since the main body of the device is located on the outside of the photovoltaic panel, when the main body is not in use, the cleaning plate is located in the gap between the main body of the device and the photovoltaic panel, without obstructing the photovoltaic panel. The structural design of this device is more reasonable, ensuring the absorption area of ​​the photovoltaic panel for light energy.

[0012] 3. This invention is equipped with a spray pipe, a blower pipe, a cleaning brush, a water guide pipe, and an air guide pipe. Water enters the spray pipe through the water guide pipe and is sprayed out through the nozzle to rinse the photovoltaic panel. The cleaning brush scrubs the photovoltaic panel, using a combination of rinsing and brushing for good cleaning effect. The cleaning brush moves back and forth on the surface of the photovoltaic panel to make the cleaning more thorough. After cleaning, air is delivered into the blower pipe through the air guide pipe. The air is sprayed out through the exhaust pipe and blown onto the photovoltaic panel, causing the water stains on the surface of the photovoltaic panel to dry quickly. The combination of rinsing and blowing ensures that the photovoltaic panel remains dry after cleaning.

[0013] 4. This invention is equipped with a telescopic drive component, a brush plate, a dovetail groove, and mounting bolts. The telescopic drive component drives the brush plate to move down to the bottom of the main body of the device. The mounting bolts are removed using tools, and the cleaning brush is pulled horizontally to move it out of the dovetail groove inside the brush plate, so that the cleaning brush can be removed and replaced with a new cleaning brush. This improves the convenience of disassembling and replacing the cleaning brush. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present invention; Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a magnified top view of the cleaning plate structure of the present invention; Figure 4 This is a side-view magnified structural schematic diagram of the present invention.

[0015] In the diagram: 1. Main body of the device; 2. Strip groove; 3. Lead screw; 4. Cleaning plate; 5. Drive chamber; 6. Rotary drive component; 7. Rotating rod; 8. Active bevel gear; 9. Slider; 10. Driven bevel gear; 11. Spray pipe; 12. Air blower; 13. Brush plate; 14. Dovetail groove; 15. Cleaning brush; 16. Mounting bolt; 17. Telescopic drive component; 18. Water guide pipe; 19. Air guide pipe. Detailed Implementation

[0016] Please see Figure 1-4The present invention provides an embodiment of a photovoltaic panel cleaning method that combines spraying and blowing, characterized in that the method includes the following steps: (1) Connect the water pipe and the air pipe to the external water source and the air pump respectively, start the rotary drive to drive the rotating rod to rotate, the rotating rod drives the active bevel gear to rotate and under the transmission action of the driven bevel gear, the screw rotates inside the strip groove; (2) The slider drives the cleaning plate to move horizontally, and the telescopic drive drives the brush plate to move downward, so that the cleaning brush contacts the surface of the photovoltaic panel. During the movement of the cleaning plate, the water source enters the spray pipe through the water guide pipe and is sprayed out through the nozzle to rinse the photovoltaic panel. (3) Next, the cleaning brush is used to scrub the photovoltaic panel. The cleaning effect is good. The cleaning brush moves back and forth on the surface of the photovoltaic panel to make the cleaning more thorough. After cleaning is completed; (4) Air is delivered into the blower pipe through the air duct, and the air is sprayed out through the exhaust pipe and blown onto the photovoltaic panel, so that the water stains on the surface of the photovoltaic panel dry quickly. By combining rinsing and blowing, the photovoltaic panel is kept dry after cleaning.

[0017] A photovoltaic panel cleaning method that combines spraying and blowing includes a device body 1, a cleaning plate 4, a spray pipe 11, a blowing pipe 12 and a cleaning brush 15, wherein the cleaning plate 4 is disposed inside the device body 1. Telescopic drive components 17 are installed on both sides of the top of the cleaning plate 4. The output end of the telescopic drive component 17 passes through the cleaning plate 4 and is fixedly connected to the brush plate 13, so as to facilitate the adjustment of the height of the brush plate 13. The inner walls on both sides of the main body 1 of the device are provided with strip grooves 2, and a lead screw 3 is rotatably installed inside the strip grooves 2; A slider 9 is fitted on the outer wall of the lead screw 3 at the position of the cleaning plate 4. The slider 9 is threadedly connected to the lead screw 3 and is fixedly connected to the cleaning plate 4. The device body 1 on one side of the cleaning plate 4 is provided with a drive cavity 5, and a rotary drive component 6 is installed inside the drive cavity 5. The rotary drive component 6 is a dual-axis motor, which facilitates the simultaneous rotation of two sets of rotating rods 7. The output end of the rotary drive 6 is fixed with a rotating rod 7, and the output end of the rotating rod 7 extends into the interior of the strip groove 2 and is equipped with an active bevel gear 8; A driven bevel tooth 10 is fixed on the outer wall of the lead screw 3 on one side of the driving bevel tooth 8. The driven bevel tooth 10 meshes with the driving bevel tooth 8 and is used for transmission between the driving bevel tooth 8 and the lead screw 3. The spray pipe 11 is installed on one side of the bottom end of the cleaning plate 4; The bottom of each spray pipe 11 is equipped with equally spaced nozzles to facilitate spraying water onto the surface of the photovoltaic panel. The blower tube 12 is installed on the other side of the bottom end of the cleaning plate 4; The bottom of each blower 12 is equipped with an equally spaced exhaust pipe to facilitate the even blowing of air onto the surface of the photovoltaic panel. A brush plate 13 is provided below the cleaning plate 4 between the spray pipe 11 and the blower pipe 12, and a dovetail groove 14 is provided inside the brush plate 13. The cleaning brush 15 is located inside the dovetail groove 14; Both ends of the cleaning brush 15 are connected to the brush plate 13 by mounting bolts 16, which makes it easy to disassemble and replace the cleaning brush 15. The top of the cleaning plate 4 is provided with a water guide pipe 18 and an air guide pipe 19. The bottom end of the water guide pipe 18 passes through the cleaning plate 4 and is connected to the spray pipe 11. The bottom end of the air guide pipe 19 passes through the cleaning plate 4 and is connected to the blower pipe 12.

[0018] In this embodiment, the following steps are taken: First, the water pipe 18 and the air pipe 19 are connected to an external water source and an air pump, respectively. The rotary drive 6 is activated to drive the rotating rod 7 to rotate. The rotating rod 7 drives the active bevel gear 8 to rotate, and under the transmission action of the driven bevel gear 10, the lead screw 3 rotates inside the strip groove 2. At this time, the slider 9 drives the cleaning plate 4 to move horizontally, and the telescopic drive 17 drives the brush plate 13 to move downward, so that the cleaning brush 15 contacts the surface of the photovoltaic panel. During the movement of the cleaning plate 4, water enters the spray pipe 11 through the water pipe 18 and is sprayed out through the nozzle to rinse the photovoltaic panel. Then, the cleaning brush 15 brushes the photovoltaic panel. The combination of rinsing and brushing results in a good cleaning effect. The cleaning plate 4 moves back and forth on the surface of the photovoltaic panel, making the cleaning more thorough. After cleaning, air is delivered into the blower pipe 12 through the air pipe 19, and the air is discharged through the exhaust pipe. The air duct sprays water onto the photovoltaic panel, causing the water stains on the surface of the photovoltaic panel to dry quickly. The combination of rinsing and blowing ensures that the photovoltaic panel remains dry after cleaning. Moreover, since the main body 1 of the device is located on the outside of the photovoltaic panel, when the main body 1 is not in use, the cleaning plate 4 is located in the gap between the main body 1 and the photovoltaic panel, without obstructing the photovoltaic panel. The structural design of this device is more reasonable, ensuring the photovoltaic panel's absorption area of ​​light energy. When the cleaning brush 15 needs to be replaced, the telescopic drive component 17 drives the brush plate 13 to move down to the bottom of the main body 1. The mounting bolt 16 is removed using a tool, and then the cleaning brush 15 is pulled horizontally to move it out of the dovetail groove 14 inside the brush plate 13. The cleaning brush 15 can then be removed and replaced with a new cleaning brush 15, thereby improving the convenience of disassembling and replacing the cleaning brush 15 and completing the work of the photovoltaic panel surface cleaning device.

Claims

1. A method for cleaning photovoltaic panels using a combination of spraying and blowing, characterized in that: The method includes the following steps: (1) Connect the water pipe and the air pipe to the external water source and the air pump respectively, start the rotary drive to drive the rotating rod to rotate, the rotating rod drives the active bevel gear to rotate and under the transmission action of the driven bevel gear, the screw rotates inside the strip groove; (2) The slider drives the cleaning plate to move horizontally, and the telescopic drive drives the brush plate to move downward, so that the cleaning brush contacts the surface of the photovoltaic panel. During the movement of the cleaning plate, the water source enters the spray pipe through the water guide pipe and is sprayed out through the nozzle to rinse the photovoltaic panel. (3) Next, the cleaning brush is used to scrub the photovoltaic panel. The cleaning effect is good. The cleaning brush moves back and forth on the surface of the photovoltaic panel to make the cleaning more thorough. After cleaning is completed; (4) Air is delivered into the blower pipe through the air duct, and the air is sprayed out through the exhaust pipe and blown onto the photovoltaic panel, so that the water stains on the surface of the photovoltaic panel dry quickly. By combining rinsing and blowing, the photovoltaic panel is kept dry after cleaning.

2. The photovoltaic panel cleaning method using a combination of spraying and blowing according to claim 1, characterized in that: The cleaning plate is located inside the main body of the device. The main body of the device has a strip groove, and a lead screw is installed in the strip groove. The lead screw is screwed to a slider, and the slider contacts the cleaning plate. The main body of the device has a drive cavity, and a rotary drive component is installed in the drive cavity. The rotary drive component has a rotating rod fixed to it, and the rotating rod extends into the strip groove and is equipped with a driving bevel gear. A driven bevel gear is connected to the lead screw, and the driven bevel gear meshes with the driving bevel gear.

3. The photovoltaic panel cleaning method using a combination of spraying and blowing according to claim 2, characterized in that: The spray pipe is connected to the cleaning plate, the blower pipe is installed at the bottom of the cleaning plate, a brush plate is provided below the cleaning plate, and a dovetail groove is provided in the brush plate. The cleaning brush is placed in the dovetail groove. The cleaning plate is provided with a water guide pipe and an air guide pipe. The water guide pipe passes through the cleaning plate and is connected to the spray pipe, and the air guide pipe passes through the cleaning plate and is connected to the blower pipe.

4. The photovoltaic panel cleaning method using a combination of spraying and blowing according to claim 3, characterized in that: The cleaning plate is equipped with a telescopic drive component, the output end of which is connected to the brush plate; the rotary drive component is a dual-axis motor; the spray pipe is equipped with equally spaced nozzles; the blower pipe is equipped with equally spaced exhaust pipes; and the cleaning brush is connected to the brush plate by bolts.

Citation Information

Patent Citations

  • Photovoltaic-panel surface cleaning device

    CN107309231A