Photovoltaic panel cleaning device

Abstract

The utility model discloses a photovoltaic panel cleaning device which comprises a base, a moving assembly is installed at the bottom of the base, a rotating platform is rotatably installed on the base, a stand column is arranged on the rotating platform, an air storage pipe is hinged to the stand column, an air inlet hose is arranged on the air storage pipe, one end of the air inlet hose is connected with a high-pressure fan, and the other end of the air inlet hose is connected with a water pump. The other end is communicated with the air knife; the air knife is installed on the lower portion of the air storage pipe, an air outlet is formed in the bottom of the air knife, and the air knife is connected with the air storage pipe through a connecting piece. A push rod motor is arranged on the stand column, one end of the push rod motor is hinged to the stand column, the other end of the push rod motor is hinged to the air storage pipe, and the air storage pipe rotates relative to the stand column along with stretching and retracting of the push rod motor; through the arrangement of the moving assembly, the rotating platform, the push rod motor and the air knife, the photovoltaic panels can be efficiently cleaned in batches, the cleaning cost is reduced, meanwhile, the photovoltaic panels are protected against damage, and the service life of the photovoltaic panels is prolonged.

Description

Technical Field

[0001] This utility model belongs to the technical field, and in particular relates to a photovoltaic panel cleaning device. Background Technology

[0002] With the transformation of the global energy structure and the rapid development of renewable energy, large-scale photovoltaic (PV) power plants have become an important source of electricity supply worldwide. These power plants typically consist of tens of thousands of photovoltaic panels covering vast areas to maximize the capture and utilization of solar energy. However, PV panels are exposed to the outdoor environment for extended periods, inevitably accumulating impurities such as dust, bird droppings, leaf fragments, and salt spray. These pollutants not only block sunlight, reducing the amount of light energy received by the PV panels, but can also cause the surface temperature of the PV panels to rise, further reducing power generation efficiency.

[0003] Traditional methods for cleaning photovoltaic panels in large-scale photovoltaic power plants mainly include manual cleaning and high-pressure water jet washing. While manual cleaning can meticulously clean every corner, it is inefficient, costly, and poses certain safety risks to operators when dealing with thousands of photovoltaic panels. On the other hand, while high-pressure water jet washing is fast, it often consumes a large amount of water and may damage the protective film on the surface of the photovoltaic panels due to excessive water pressure, thus shortening the lifespan of the panels.

[0004] Therefore, there is an urgent need for a cleaning device that can efficiently, centrally, and safely clean photovoltaic panels in large-scale photovoltaic power plants, in order to improve the power generation efficiency of photovoltaic panels, reduce cleaning costs, and at the same time protect photovoltaic panels from damage and extend their service life. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides a photovoltaic panel cleaning device to improve the efficiency and safety of cleaning operations.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A photovoltaic panel cleaning device includes a base with a movable component mounted on its bottom. A rotating platform is rotatably mounted on the base, and a column is mounted on the rotating platform. The column includes an outer vertical pipe and an inner vertical pipe that are nested together. The bottom of the inner vertical pipe is fixed to the base, and an air storage pipe is hinged to the outer vertical pipe. An air inlet hose is provided on the air storage pipe, one end of which is connected to a high-pressure fan, and the other end is connected to an air knife. The air knife is mounted below the air storage pipe, and an air outlet is provided at the bottom of the air knife. The air knife is connected to the air storage pipe via a connector. A push rod motor is mounted on the column, with one end of the push rod motor hinged to the column and the other end hinged to the air storage pipe. As the push rod motor extends and retracts, the air storage pipe rotates relative to the column. By using the movable component, rotating platform, push rod motor, and air knife, photovoltaic panels can be cleaned efficiently and in batches, reducing cleaning costs while protecting the photovoltaic panels from damage and extending their service life.

[0008] Preferably, the air storage pipe is equipped with two rows of protective wheels, which are symmetrically distributed on both sides of the air storage pipe, and each row of protective wheels has multiple protective wheels along the length of the air storage pipe; the protective wheels are rotatably installed by wheel frames, and their bottom ends are lower than the bottom of the air knife.

[0009] Preferably, the air storage pipe is provided with multiple diversion ports along its length, and the diversion ports extend through the bottom of the air storage pipe and are all connected to the air knife.

[0010] Preferably, the moving component is a tracked walking mechanism.

[0011] Preferably, the rotating platform is equipped with a control cabin, and the column is located on one side of the control cabin. A counterweight is located on the side of the control cabin away from the column. This design prevents the risk of tipping over due to the unbalanced weight of the air storage pipes on the other side of the main column. A corresponding counterweight is designed at the other end below the column to prevent the equipment from tipping over, improve the balance during use, improve cleaning efficiency, and prevent damage to the photovoltaic panels due to accidental tipping.

[0012] Preferably, the automatic adjustment system includes a connecting pipe connected to the air storage pipe, a rolling connecting rod movably installed inside the connecting pipe, an automatic adjustment wheel installed at the bottom of the rolling connecting rod, and multiple micro switches, namely micro switch one, micro switch two, and micro switch three. Micro switch two and micro switch three are installed inside the connecting pipe, located on the same side or both sides of the rolling connecting rod. The horizontal installation height of micro switch two is lower than the horizontal installation height of micro switch three. Micro switch two and micro switch three are respectively connected to and controlled by a push rod motor. Micro switch one is located between the top cover of the outer riser and the top of the inner riser in the column, and micro switch one is in a pressure contact state. The trigger switch of micro switch one is installed downward.

[0013] Preferably, the adjustment method of the automatic adjustment system is as follows:

[0014] (1) Under normal circumstances, the top cover of the outer riser and the top of the inner riser are in close contact, and the micro switch is in the power-off state; when the cleaning system is left on the photovoltaic panel during a continuous downhill, the top cover of the outer riser and the top of the inner riser are out of contact, the micro switch is turned on and is in the rising power-on state, raising the cleaning system to a suitable height.

[0015] (2) In actual use, micro switch two is normally in the power off state. If the cleaning system is on an uphill slope, the cleaning system will detach from the photovoltaic panel and the automatic adjustment wheel will fall down and the rolling linkage will touch micro switch two, thus adjusting the cleaning system to a suitable height.

[0016] (3) In actual use, micro switch three is normally energized. After a cleaning cycle is completed, the automatic adjustment wheel drops and drives the rolling linkage upward to touch micro switch three. Micro switch three is de-energized, causing the cleaning system to stop working until the next cleaning cycle begins.

[0017] Compared with the prior art, this utility model has the following beneficial effects:

[0018] This invention, through the arrangement of moving components, a rotating platform, a push rod motor, and air blades, enables efficient and batch cleaning of photovoltaic panels, reducing cleaning costs while protecting the photovoltaic panels from damage and extending their service life.

[0019] This invention is applicable to use in Gobi and desert regions, enabling the cleaning of photovoltaic panels in situations where electricity is scarce, thus solving the market's reliance on water and electricity for photovoltaic cleaning. In this invention, the residual power of the tracked vehicle is used to drive a high-pressure fan via a belt, eliminating the need for mains power or batteries and saving energy. Deserts, Gobi, and wastelands have virtually no water, making cleaning with water an impossible task. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a cross-sectional schematic diagram of a partial structure of this utility model.

[0022] Figure 3 This is a schematic diagram of another part of the balance wheel in this utility model.

[0023] Figure 4 This is a schematic diagram of the structure of a part of the micro switch in the present invention under pressure and de-energized state.

[0024] Figure 5 This is a schematic diagram of the micro switch in the open and energized state of this utility model.

[0025] The main technical features in the figure are labeled as follows: 1. Base; 2. Tracked walking mechanism; 3. Rotating platform; 4. Control cabin; 5. Air storage pipe; 6. Push rod motor; 7. Diverter interface; 8. High-pressure fan; 9. Air inlet hose; 10. Air knife; 11. Air outlet; 12. Protective wheel; 13. Wheel frame; 14. Column; 141. Inner riser; 142. Outer riser; 15. Balance block; 20. Connecting pipe; 21. Micro switch one; 22. Micro switch two; 23. Micro switch three; 24. Rolling connecting rod; 25. Automatic adjusting wheel. Detailed Implementation

[0026] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0027] like Figure 1-5 This utility model relates to a photovoltaic panel cleaning device, including a base 1. A tracked walking mechanism 2 is installed at the bottom of the base 1. The tracked walking mechanism 2 is prior art and is a tracked walking device commonly used on engineering machinery, tractors and other field operation vehicles. A rotating platform 3 is installed on the base 1. The rotating platform 3 is prior art and consists of a base, a rotating motor, a rotating bearing, a drive gear, a transmission shaft and other components. The rotating motor is driven to rotate by hydraulic power, and the drive shaft drives the base to rotate through the gear mechanism of the drive gear and the rotating bearing.

[0028] Specifically, a control cabin 4 is fixedly installed on the base. The control cabin 4 is a prior art technology and can be a driver's cab commonly used in engineering machinery. It contains a control platform for controlling the operation of the tracked walking mechanism 2, the rotating platform 3, the high-pressure fan 8, and the push rod motor 6. A column 14 is fixedly installed on the front side of the control cabin 4, and a counterweight is installed on the rear side to balance the weight on the base. This design prevents the risk of tipping over due to the weight imbalance on the other side of the main column, where the air storage pipes are all on the same side. A corresponding counterweight is designed at the other end below the column to prevent the equipment from tipping over, improve the balance during use, improve cleaning efficiency, and prevent damage to the photovoltaic panels due to accidental tipping.

[0029] The column 14 in this utility model includes an inner riser 141 and an outer riser 142. The inner riser 141 is connected to the base 1, and the outer riser 142 is hinged to the air storage pipe 5. This structure has been described in the applicant's previous patent application and will not be repeated here. The air storage pipe 5 extends away from the control cabin 4, and a push rod motor 6 is provided at its bottom. The push rod motor 6 is existing technology and can be a hydraulic cylinder or other mechanism with the same function. One end of the push rod motor 6 is hinged to the column 14, and the other end is hinged to the bottom of the air storage pipe 5. As the push rod motor 6 extends and retracts, the air storage pipe 5 can rotate relative to the column 14. Mainly, the air storage pipe 5 swings up and down to reach a suitable cleaning height. The air storage pipe 5 provides support for the entire cleaning process. The air storage pipe 5 has a diverter structure inside, and one end of it is connected to a high-pressure blower 8 through an air inlet hose 9. The high-pressure blower 8 is fixedly installed on the base. It is located at the side end of the control cabin 4; the air storage pipe 5 is evenly provided with multiple diversion interfaces 7 along its length, the diversion interfaces 7 extend downward and pass through the bottom of the air storage pipe and are connected to the air knife 10; the air knife 10 is located below the air storage pipe 5 and is connected to the air storage pipe 5 through a connector, the diversion interface 7 passes through the connector and communicates with the air knife 10, the connector is a connecting branch pipe provided at the bottom of the air storage pipe 5, which is fixedly connected to the air knife 10; the air knife 10 is a strip pipe with an inverted equilateral trapezoidal structure with a larger cross-section at the top and a smaller cross-section at the bottom, and an air outlet 11 with a strip groove structure is opened at its bottom to form a strong blowing air and improve cleaning efficiency.

[0030] In this invention, a row of protective wheels 12 is arranged diagonally below each of the two sides of the air storage duct 5. The two rows of protective wheels 12 are symmetrically distributed on both sides of the air storage duct 5. Each row of protective wheels 12 includes multiple protective wheels 12, and these wheels are evenly arranged along the length of the air storage duct 5. The protective wheels 12 are rotatably mounted via wheel frames 13, and their bottom ends are lower than the bottom of the air blades 10. The rolling direction of the protective wheels 12 is perpendicular to the length of the air storage duct 5. One end of the wheel frame 13 is fixed to the outer wall of the air storage duct 5, and it is inclined relative to the air storage duct 5, extending outward from the outer wall of the air storage duct 5. The protective wheels protect the photovoltaic panels from crushing or other accidental damage, and also facilitate cleaning of the photovoltaic panels, improving cleaning efficiency.

[0031] This invention can be equipped with an automatic adjustment system as needed, which can automatically adjust the height of the jacking rod when going uphill or downhill continuously, and automatically cut off the power supply to the rising and falling jacking rod to maintain the original height when a photovoltaic cycle ends.

[0032] The automatic adjustment system of this utility model includes a connecting pipe 20 connected to the air storage pipe 5, a rolling connecting rod 24 movably installed inside the connecting pipe 20, an automatic adjustment wheel 25 installed at the bottom of the rolling connecting rod 24, and multiple micro switches, namely micro switch one 21, micro switch two 22 and micro switch three 23. Micro switch two 22 and micro switch three 23 are installed inside the connecting pipe 20, located on the same side or both sides of the rolling connecting rod 24. The horizontal installation height of micro switch two 22 is lower than the horizontal installation height of micro switch three 23. Micro switch two 22 and micro switch three 23 are respectively connected to and controlled by a push rod motor. Micro switch one 21 is located between the top cover of the outer riser 142 and the top end of the inner riser 141 in the column 14, and micro switch one 21 is in a pressure contact state. The trigger switch of micro switch one 21 is installed downward.

[0033] The micro switch in this invention can also adopt other structures, such as a permanent magnet switch and a corresponding sensing device, or other structures, as long as the corresponding function is achieved.

[0034] When the cleaning system remains on the photovoltaic panel during a continuous downhill slope, the outer riser top cover and the inner riser top end disengage, and micro switch 21 is turned on and in the rising energized state (normally, micro switch 21 is in the de-energized state when the outer riser top cover is in contact with the inner riser top end), which protects the photovoltaic panel and also automatically adjusts to improve efficiency, reducing the tediousness and labor intensity of manual operation.

[0035] Specifically, the cleaning system is an external structure consisting of an air storage pipe and an air knife connected to the high-pressure blower. If necessary, an existing cleaning spray device driven by a water pump can also be added.

[0036] In actual use of this utility model, when cleaning on an uphill slope, the cleaning system will detach from the photovoltaic panel and the automatic adjustment wheel 25 will fall downwards. The rolling linkage 24 will touch the micro switch 22, and the switch will be turned on to continue to lower downwards (normally the micro switch 22 is in the de-energized state).

[0037] When a cleaning cycle of the photovoltaic system is completed, the automatic adjusting wheel 25, due to its center of gravity, will fall directly, triggering micro switch 23 to disconnect the power and prevent accidents. In actual use, micro switch 23 is normally energized. After a cleaning cycle ends, the automatic adjusting wheel 25, due to its downward movement, drives the rolling linkage 24 upward, triggering micro switch 23, de-energizing it, and stopping the cleaning system until the next cleaning cycle begins. This automatic shut-off of the cleaning system after cleaning reduces energy consumption and saves energy.

[0038] The specific implementation process of this utility model is as follows: The tracked walking mechanism 2 is controlled by the control platform to move the device to the front of the photovoltaic panel. The rotating platform 3 is controlled to rotate to a suitable angle so that the air storage pipe 5 rotates above the photovoltaic panel. Then, the push rod motor 6 is controlled to extend and retract, and the angle of the air knife 10 is adjusted to a position that is close to parallel to the plane of the photovoltaic panel. At this time, the protective wheel 12 will come into contact with the surface of the photovoltaic panel. The high-pressure fan 8 is started, and compressed air enters the air knife 10. The air knife 10 generates an impact air curtain to clean the surface of the photovoltaic panel. At the same time, the tracked walking mechanism 2 runs, and the device can move along the direction of the photovoltaic panel arrangement, thereby realizing batch cleaning of a single row of photovoltaic panels.

[0039] During the cleaning process, when the cleaning system remains on the photovoltaic panel while the device is continuously moving downhill, the cleaning height is automatically adjusted by micro switch 21 and micro switch 22, thus automatically protecting the photovoltaic panel.

[0040] When a photovoltaic cycle is cleaned, the automatic adjustment wheel will drop directly due to the principle of center of gravity, triggering micro switch 323 to disconnect the power supply, prevent accidents, reduce energy consumption, and save energy.

[0041] The above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. The present utility model can be used in similar products. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A photovoltaic panel cleaning device, characterized by: The application relates to a wind storage and air knife device, which comprises a base (1) provided with a moving assembly at the bottom, a rotary platform (3) rotatably arranged on the base (1), a stand (14) arranged on the rotary platform (3), an outer stand pipe (142) and an inner stand pipe (141) sleeved with each other, the inner stand pipe (141) being fixed at the bottom of the base (1), a wind storage pipe (5) hinged to the outer stand pipe (142), an air inlet hose (9) arranged on the wind storage pipe (5), a high-pressure fan (8) connected to one end of the air inlet hose (9), and an air knife (10) communicated with the other end of the air inlet hose (9). The air knife (10) is arranged below the wind storage pipe (5), the air knife (10) is provided with an air outlet (11) at the bottom, and the air knife (10) is connected with the wind storage pipe (5); the stand (14) is provided with a push rod motor (6), one end of the push rod motor (6) is hinged to the stand (14), and the other end of the push rod motor (6) is hinged to the wind storage pipe (5), so that the wind storage pipe (5) can rotate relative to the stand (14) along with the extension and retraction of the push rod motor (6).

2. A photovoltaic panel cleaning device according to claim 1, characterized in that: Two rows of protection wheels (12) are arranged on the wind storage pipe (5), the two rows of protection wheels (12) are symmetrically arranged on the two sides of the wind storage pipe (5), and a plurality of protection wheels (12) are arranged on each row of protection wheels (12) along the length direction of the wind storage pipe (5); the protection wheels (12) are rotatably arranged through wheel frames (13), and the bottom ends of the protection wheels (12) are lower than the bottom of the air knife (10).

3. A photovoltaic panel cleaning device according to claim 1, characterized in that: A plurality of shunt interfaces (7) are arranged on the wind storage pipe (5) along the length direction, the shunt interfaces (7) are arranged to pass through the bottom of the wind storage pipe (5) and are connected with the air knife (10).

4. A photovoltaic panel cleaning device according to claim 1, characterized in that: The moving assembly is a track type walking mechanism (2).

5. A photovoltaic panel cleaning device according to claim 1, characterized in that: The rotary platform (3) is provided with a control cabin (4), one side of the control cabin (4) is provided with the stand (14), and the side, away from the stand (14), of the control cabin (4) is provided with a balance block (15).

6. A photovoltaic panel cleaning device according to claim 1, characterized in that: The air outlet (11) of the air knife (10) is a strip-shaped groove arranged along the length direction of the air knife (10).

7. A photovoltaic panel cleaning device according to any of claims 1-6, characterized in that: The application further comprises an automatic adjusting system, the automatic adjusting system comprises a connecting pipe (20) connected with the wind storage pipe (5), a rolling connecting rod (24) movably arranged in the connecting pipe (20), an automatic adjusting wheel (25) arranged at the bottom of the rolling connecting rod (24), and a plurality of micro switches, namely a micro switch one (21), a micro switch two (22) and a micro switch three (23).

8. A photovoltaic panel cleaning device according to claim 7, characterized in that: The micro switch two (22) and the micro switch three (23) are arranged in the connecting pipe (20) and located on the same side or on both sides of the rolling connecting rod (24), the horizontal installation height of the micro switch two (22) is lower than that of the micro switch three (23), and the micro switch two (22) and the micro switch three (23) are respectively connected with the push rod motor.

9. A photovoltaic panel cleaning device according to claim 7, characterized in that: The micro switch one (21) is located between the top cover of the outer stand pipe (142) and the top end of the inner stand pipe (141), and the micro switch one (21) is in a pressure contact state, and the touch switch of the micro switch one (21) is installed downward.

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