Efficient photovoltaic module cleaning equipment

Abstract

The utility model relates to the technical field of photovoltaic power generation maintenance, and discloses efficient photovoltaic module cleaning equipment which comprises a movable base linearly moving along the edge of a photovoltaic panel, and a first cleaning arm and a second cleaning arm which are opposite to the light facing face of the photovoltaic panel are installed on the movable base. The first cleaning arm and the second cleaning arm are parallel to each other and are connected through a connecting arm, and a cleaning nozzle is installed on the side, away from the first cleaning arm, of the second cleaning arm. According to the efficient photovoltaic module cleaning equipment, the movable base 1 moves along the edge of the photovoltaic panel 8 to drive the multiple cleaning components to work cooperatively, comprehensive and efficient cleaning of the light-facing face of the photovoltaic panel is achieved, the integrated design not only improves the cleaning efficiency and the cleaning effect, but also reduces the operation difficulty and potential safety hazards, and the cleaning efficiency is improved. And a convenient and reliable solution is provided for the maintenance of the photovoltaic module.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power generation maintenance technology, specifically to a high-efficiency photovoltaic module cleaning device. Background Technology

[0002] A photovoltaic module typically refers to a complete unit consisting of one or more photovoltaic panels and related auxiliary components such as brackets and connectors. As the core component of a solar power generation system, the cleanliness of the photovoltaic panel's surface directly affects the power generation efficiency. In outdoor environments, dust, bird droppings, leaves, and other impurities easily adhere to the surface of photovoltaic modules, blocking light and reducing photoelectric conversion efficiency. Therefore, it is necessary to clean the surface of photovoltaic panels regularly.

[0003] Currently, the surface of photovoltaic panels is mostly cleaned using either manual cleaning or equipment cleaning. However, these methods have the following drawbacks:

[0004] 1. In large-scale ground-mounted centralized photovoltaic power stations, there are a large number of photovoltaic panels and they are widely distributed. When cleaning manually, the staff need to clean each photovoltaic panel one by one. Since the photovoltaic panels are usually installed on the brackets at a certain height, the staff need to climb frequently, which is extremely labor-intensive.

[0005] For example, in a power plant with thousands of photovoltaic panels, a worker may only be able to clean a few dozen panels a day, which is extremely inefficient. Moreover, during the climbing process, workers need to carry cleaning tools, which makes movement inconvenient. In addition, the outdoor environment is complex. If there are strong winds, scorching sun or other bad weather, it will not only increase the difficulty of the work, but also pose serious safety risks. If a worker accidentally falls from a height, it will cause serious personal injury.

[0006] In addition, manual cleaning is difficult to guarantee the uniformity of cleaning, which may result in some areas not being thoroughly cleaned, affecting the overall power generation efficiency of the photovoltaic panels.

[0007] 2. Most existing cleaning equipment has a complex structure and is cumbersome to operate, requiring professional personnel to operate and debug it. Staff need to be familiar with the various function buttons and operating procedures of the equipment. Moreover, the cleaning effect of these devices is not satisfactory. It is difficult to clean the sun-facing side of the photovoltaic panel while moving it, and the removal efficiency for stubborn stains such as bird droppings is low, making it difficult for the photovoltaic panel to restore good sunlight conditions, which in turn leads to low actual power generation efficiency. Utility Model Content

[0008] To address the technical problems existing in the background art, this utility model proposes a high-efficiency photovoltaic module cleaning device.

[0009] This utility model proposes a high-efficiency photovoltaic module cleaning device, including a movable base that moves linearly along the edge of the photovoltaic panel. A first cleaning arm and a second cleaning arm are installed on the movable base, which are opposite to the light-facing surface of the photovoltaic panel. The first cleaning arm and the second cleaning arm are parallel to each other and connected by a connecting arm. A cleaning nozzle is installed on the side of the second cleaning arm away from the first cleaning arm.

[0010] It also includes three rotating brushes, which are arranged in a triangle. Two of the rotating brushes are symmetrically installed on the upper and lower sides of the back of the first cleaning arm, and the other rotating brush is installed on the back of the connecting arm. The movable shaft ends of the three rotating brushes are connected by a transmission assembly and driven by a motor.

[0011] During use, the motor's power is transmitted to the three rotating brushes through the transmission assembly, causing them to rotate synchronously. The movable base moves linearly along the edge of the photovoltaic panel and moves in front of the cleaning nozzle, synchronously driving the first cleaning arm, the second cleaning arm, and the rotating brushes to move. During the movement, the cleaning nozzle sprays cleaning liquid or water as needed, and the rotating brushes perform rotating cleaning on the sun-facing side of the photovoltaic panel.

[0012] This design allows the cleaning equipment to clean different areas of the photovoltaic panel's sun-facing side simultaneously, increasing the cleaning coverage and improving cleaning efficiency. Multiple cleaning components work together to quickly remove dust, bird droppings, and other impurities. The cleaning fluid sprayed from the cleaning nozzles softens stubborn stains, and the high-speed rotation of the rotating brushes enhances the cleaning effect, helping to improve the photovoltaic panel's power generation efficiency. At the same time, the integrated design mounts each cleaning component on a movable base, resulting in a compact structure that is easy to operate.

[0013] As a further optimized solution of this utility model, the two rotating brushes located on the back of the first cleaning arm rotate to clean the upper and lower sides of the photovoltaic panel facing the light, and the rotating brush located on the back of the connecting arm rotates to clean the middle part of the photovoltaic panel facing the light. The distance between the two rotating brushes located on the back of the first cleaning arm is smaller than the diameter of the rotating brush.

[0014] When the equipment is working, three rotating brushes rotate under the drive of the motor. The rotating brushes located on the upper and lower sides of the back of the first cleaning arm clean the upper and lower edges of the photovoltaic panel facing the light, while the rotating brush located on the back of the connecting arm cleans the middle of the photovoltaic panel. Since the distance between the two rotating brushes is less than their diameter, their cleaning areas will partially overlap during the cleaning process, ensuring that there are no dead corners in the cleaning of the photovoltaic panel facing the light.

[0015] By rationally arranging the position and spacing of the rotating brushes, a comprehensive cleaning of the sun-facing surface of the photovoltaic panel is achieved, avoiding the occurrence of cleaning dead corners, further improving the cleaning effect, ensuring that impurities on the surface of the photovoltaic panel are thoroughly removed, thereby improving the power generation performance of the photovoltaic panel.

[0016] As a further optimization of this utility model, a transmission cover is installed on the side of the first cleaning arm away from the photovoltaic panel. The transmission cover covers the outside of the movable shaft ends of the three rotating brushes and is used for external protection of the transmission components and the motor.

[0017] During equipment operation, the transmission cover always covers the movable shaft ends of the three rotating brushes, the transmission components, and the exterior of the motor, preventing water droplets, dust, and other impurities generated during the cleaning process from entering these components. This reduces the erosion and wear caused by impurities, extends the service life of the equipment, lowers maintenance costs, and ensures long-term stable operation of the equipment.

[0018] As a further optimization of this utility model, an auxiliary plate is installed at the end of the first cleaning arm and the second cleaning arm away from the movable base. The other end of the auxiliary plate is movably mounted on the upper end of the photovoltaic panel. A roller is installed at the end of the auxiliary plate close to the photovoltaic panel. The auxiliary plate is rolledly connected to the upper surface of the photovoltaic panel through the roller.

[0019] As the auxiliary plate moves with the cleaning arm, the rollers roll on the upper surface of the photovoltaic panel, converting sliding friction into rolling friction. This further reduces the friction between the auxiliary plate and the photovoltaic panel, making the cleaning arm move more smoothly, reducing wear on the photovoltaic panel surface, lowering the energy consumption of the equipment, and improving the equipment's working efficiency.

[0020] As a further optimization of this utility model, the number of cleaning nozzles is multiple, the multiple cleaning nozzles are evenly distributed along the length direction of the second cleaning arm, and the multiple cleaning nozzles are connected to an external water supply pipeline through the same water supply pipe.

[0021] An external water supply line delivers the cleaning solution to the water supply pipe. Multiple cleaning nozzles simultaneously draw cleaning solution from the water supply pipe and spray it evenly onto the surface of the photovoltaic panel. This allows for large-area spraying of the cleaning solution, ensuring that all areas of the photovoltaic panel surface are fully wetted. This effectively softens stubborn stains and provides better conditions for subsequent cleaning by the rotating brush, further improving the cleaning effect. At the same time, the connection through a single water supply pipe simplifies the liquid supply system, making operation and maintenance easier.

[0022] As a further optimized solution of this utility model, a cleaning brush is slidably installed on the side of the second cleaning arm near the light-facing surface of the photovoltaic panel, and the brush bristles are in contact with the light-facing surface of the photovoltaic panel. A drive mechanism is installed inside the movable base, and the lower end of the cleaning brush is connected to the movable end of the drive mechanism through a movable rod. The drive mechanism drives the cleaning brush to move back and forth along the height direction of the photovoltaic panel.

[0023] The drive mechanism is preferably a crank-slider structure driven by an electric motor. The movable end of the drive mechanism drives the cleaning brush to move back and forth along the height direction of the photovoltaic panel through the movable rod. During the movement, the bristles of the cleaning brush contact the sun-facing surface of the photovoltaic panel and brush the photovoltaic panel, which further enhances the cleaning effect on the surface of the photovoltaic panel. In particular, for stubborn stains that are difficult to remove by the rotating brush, the cleaning brush can perform targeted brushing to ensure that impurities on the surface of the photovoltaic panel are thoroughly removed and improve the power generation efficiency of the photovoltaic panel.

[0024] As a further optimization of this utility model, the device also includes a walking device, on which a water tank is installed, and a cantilever is installed on the side of the water tank. The movable base is rotatably connected to the cantilever via a rotating shaft, and the movable base is driven by a servo motor to flip between the water tank and the photovoltaic panel.

[0025] The walking device is any trolley in the existing technology, preferably a trolley with universal wheels. The servo motor drives the movable base to rotate around the axis between the water tank and the photovoltaic panel. When cleaning is required, the movable base rotates to the side of the photovoltaic panel for cleaning. When cleaning is not required, the movable base rotates to the side of the water tank, and then the walking device drives the entire device to move to different photovoltaic panel areas.

[0026] The mobile device and water tank enable the equipment to move and store liquid, facilitating cleaning operations between photovoltaic panels in different locations without the need for frequent external water supply. The flip-up design of the movable base makes it easy to store the equipment when not in use, saving space and also facilitating maintenance and upkeep.

[0027] The high-efficiency photovoltaic module cleaning equipment proposed in this invention has the following beneficial effects:

[0028] (i) The movable base moves linearly along the edge of the photovoltaic panel, driving the first cleaning arm, the second cleaning arm, the cleaning nozzle, and the rotating brush to work. The three rotating brushes, which are arranged in a triangle, can simultaneously rotate and clean different areas of the photovoltaic panel facing the light, increasing the cleaning coverage area and quickly removing impurities such as dust and bird droppings. During cleaning, the cleaning nozzle can spray cleaning liquid to soften stubborn stains and reduce their adhesion. Combined with the high-speed rotation of the rotating brush, it generates strong friction, greatly improving the cleaning efficiency, enabling the photovoltaic panel to quickly restore good light-receiving conditions and improve power generation efficiency.

[0029] (II) The movable base of this equipment serves as a support and moving component, on which key cleaning components such as the first cleaning arm and the second cleaning arm are integrated. The layout is simple, and all components work together. The rotating brush is driven by a motor, eliminating the need for complicated operating steps, reducing the difficulty of operation, making it convenient for staff to use, and improving work efficiency. Moreover, staff only need to operate on the ground and do not need to climb the photovoltaic support, reducing safety hazards and ensuring the personal safety of staff.

[0030] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0031] Figure 1 This is a front structural diagram of the present invention;

[0032] Figure 2 This is a schematic diagram of the working state of this utility model;

[0033] Figure 3 This utility model Figure 1 A side view of the second cleaning arm.

[0034] Figure descriptions: 1. Movable base; 2. First cleaning arm; 3. Second cleaning arm; 4. Cleaning nozzle; 5. Connecting arm; 6. Rotating brush; 7. Transmission assembly; 8. Photovoltaic panel; 9. Transmission cover; 10. Auxiliary plate; 11. Walking device; 12. Water tank; 13. Cantilever; 14. Cleaning brush; 15. Movable rod. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0036] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] In practical operation scenarios, the high-efficiency photovoltaic module cleaning equipment of this utility model demonstrates excellent cleaning performance due to its unique structural design and collaborative working mode. Before starting the cleaning operation, the equipment must first be prepared as follows:

[0041] like Figure 2 As shown, the device is equipped with a walking device 11. For easy movement, the walking device 11 is a trolley with casters. The walking device 11 is equipped with a water tank 12, which is used to store clean water or cleaning fluid required for cleaning the photovoltaic panels. A cantilever 13 is installed on the side of the water tank 12. The movable base 1 is rotatably connected to the cantilever 13 through a rotating shaft. The movable base 1 is driven by a servo motor to flip between the water tank 12 and the photovoltaic panel 8. When the device moves to the area of ​​the photovoltaic panel to be cleaned, the servo motor is started to drive the movable base 1 to flip from one side of the water tank 12 to the other side of the photovoltaic panel 8, so that the device enters the working state.

[0042] like Figure 1As shown, the movable base 1 is the key moving component of the entire cleaning equipment. It can move linearly along the edge of the photovoltaic panel 8. On the movable base 1, a first cleaning arm 2 and a second cleaning arm 3 are installed. These two cleaning arms are parallel to each other and connected together by a connecting arm 5 to ensure the stability of the overall structure. Both the first cleaning arm 2 and the second cleaning arm 3 are opposite to the sun-facing surface of the photovoltaic panel 8. Multiple cleaning nozzles 4 are installed on the side of the second cleaning arm 3 away from the first cleaning arm 2. These cleaning nozzles 4 are evenly distributed along the length of the second cleaning arm 3 and are connected to an external water supply line through the same water supply pipe. After the external water supply line delivers the cleaning fluid to the water supply line, the multiple cleaning nozzles 4 work simultaneously to spray the cleaning fluid evenly onto the surface of the photovoltaic panel 8. The large-area spray can fully wet the photovoltaic panel, effectively soften stubborn stains, and create good conditions for subsequent cleaning work. At the same time, this design simplifies the liquid supply system and facilitates operation and maintenance.

[0043] like Figure 1 As shown, two rotating brushes 6 are symmetrically installed on the upper and lower sides of the back of the first cleaning arm 2, and another rotating brush 6 is installed on the back of the connecting arm 5. The three rotating brushes 6 are arranged in a triangular distribution. The movable shaft ends of the three rotating brushes 6 are connected by a transmission assembly 7 and driven by a motor. When the motor starts, the power is transmitted to the three rotating brushes 6 through the transmission assembly 7, so that they rotate synchronously. When the movable base 1 moves linearly along the edge of the photovoltaic panel 8, it drives the first cleaning arm 2, the second cleaning arm 3 and the rotating brushes 6 to move synchronously. The rotating brushes 6 located on the upper and lower sides of the back of the first cleaning arm 2 rotate and clean the upper and lower sides of the light-facing surface of the photovoltaic panel 8, respectively. The rotating brushes 6 located on the back of the connecting arm 5 rotate and clean the middle part of the light-facing surface of the photovoltaic panel 8.

[0044] It is worth noting that the distance between the two rotating brushes 6 located on the back of the first cleaning arm 2 is smaller than the diameter of the rotating brushes 6. This causes the areas they clean to partially overlap during the cleaning process, thereby avoiding cleaning dead corners on the sun-facing side of the photovoltaic panel, ensuring the complete removal of impurities from the surface of the photovoltaic panel, and further improving the cleaning effect.

[0045] like Figure 2 As shown, in order to protect the transmission assembly 7 and the motor, a transmission cover 9 is installed on the side of the first cleaning arm 2 away from the photovoltaic panel 8. The transmission cover 9 covers the outside of the movable shaft ends of the three rotating brushes 6. During the operation of the equipment, it can effectively prevent water droplets, dust and other impurities generated during the cleaning process from entering these components, reduce the erosion and wear of impurities on them, extend the service life of the equipment, reduce the maintenance cost of the equipment, and ensure that the equipment can operate stably for a long time.

[0046] like Figure 2 and Figure 3As shown, auxiliary plates 10 are installed at the ends of the first cleaning arm 2 and the second cleaning arm 3 away from the movable base 1. The other end of the auxiliary plate 10 is movably mounted on the upper end of the photovoltaic panel 8. A roller is installed at the end of the auxiliary plate 10 close to the photovoltaic panel 8. When the cleaning arm moves with the movable base 1, the auxiliary plate 10 rolls with the upper surface of the photovoltaic panel 8 through the roller. This design converts sliding friction into rolling friction, which greatly reduces the friction between the auxiliary plate 10 and the photovoltaic panel 8, making the cleaning arm move more smoothly, reducing wear on the surface of the photovoltaic panel, reducing the energy consumption of the equipment, and improving the working efficiency of the equipment.

[0047] In addition, such as Figure 3 As shown, a cleaning brush 14 is slidably installed on the side of the second cleaning arm 3 near the light-facing surface of the photovoltaic panel 8. The bristle ends of the cleaning brush 14 are in contact with the light-facing surface of the photovoltaic panel 8. A drive mechanism is installed inside the movable base 1. The drive mechanism is preferably a crank-slider structure driven by an electric motor. The lower end of the cleaning brush 14 is connected to the movable end of the drive mechanism through the movable rod 15. When the drive mechanism is working, its movable end drives the cleaning brush 14 to move back and forth along the height direction of the photovoltaic panel 8 through the movable rod 15.

[0048] During the movement, the bristles of the cleaning brush 14 scrub the photovoltaic panel, especially for stubborn stains that are difficult to remove by the rotating brush 6. The cleaning brush 14 can perform targeted scrubbing, further enhancing the cleaning effect on the surface of the photovoltaic panel and ensuring that impurities on the surface of the photovoltaic panel are completely removed, thereby effectively improving the power generation efficiency of the photovoltaic panel.

[0049] After cleaning one photovoltaic panel, the servo motor is restarted to drive the movable base 1 to flip from one side of the photovoltaic panel 8 to the side of the water tank 12, so that the equipment is in the storage state. Then, the operator pushes the walking device 11 to move the equipment to the next photovoltaic panel that needs to be cleaned, and repeats the above cleaning steps to achieve efficient cleaning of photovoltaic panels in different positions.

[0050] In summary, the high-efficiency photovoltaic module cleaning equipment of this utility model, through the movement of the movable base 1 along the edge of the photovoltaic panel 8, drives multiple cleaning components to work together, achieving comprehensive and efficient cleaning of the sun-facing surface of the photovoltaic panel. This integrated design not only improves cleaning efficiency and enhances cleaning effect, but also reduces operation difficulty and safety hazards, providing a convenient and reliable solution for the maintenance of photovoltaic modules.

[0051] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high efficiency photovoltaic module cleaning apparatus, characterized by, The system includes a movable base (1) that moves linearly along the edge of the photovoltaic panel (8). The movable base (1) is equipped with a first cleaning arm (2) and a second cleaning arm (3) that are opposite to the light-facing surface of the photovoltaic panel (8). The first cleaning arm (2) and the second cleaning arm (3) are parallel to each other and connected by a connecting arm (5). A cleaning nozzle (4) is installed on the side of the second cleaning arm (3) away from the first cleaning arm (2). It also includes three rotating brushes (6), which are arranged in a triangular pattern. Two of the rotating brushes (6) are symmetrically installed on the upper and lower sides of the back of the first cleaning arm (2), and the other rotating brush (6) is installed on the back of the connecting arm (5). The movable shaft ends of the three rotating brushes (6) are connected by a transmission assembly (7) and driven by a motor.

2. A high efficiency photovoltaic module cleaning apparatus as claimed in claim 1, wherein, Two rotating brushes (6) located on the back of the first cleaning arm (2) perform rotating cleaning on the upper and lower sides of the light-facing surface of the photovoltaic panel (8), and a rotating brush (6) located on the back of the connecting arm (5) performs rotating cleaning on the middle part of the light-facing surface of the photovoltaic panel (8). The distance between the two rotating brushes (6) located on the back of the first cleaning arm (2) is smaller than the diameter of the rotating brush (6).

3. A high efficiency photovoltaic module cleaning apparatus as set forth in claim 1, wherein, A transmission cover (9) is installed on the side of the first cleaning arm (2) away from the photovoltaic panel (8). The transmission cover (9) covers the outside of the movable shaft ends of the three rotating brushes (6) and is used for external protection of the transmission assembly (7) and the motor.

4. A high efficiency photovoltaic module cleaning apparatus as set forth in claim 1, wherein, The first cleaning arm (2) and the second cleaning arm (3) are each equipped with an auxiliary plate (10) at one end away from the movable base (1), and the other end of the auxiliary plate (10) is movably mounted on the upper end of the photovoltaic panel (8).

5. A high efficiency photovoltaic module cleaning apparatus as set forth in claim 4, wherein, The auxiliary plate (10) is equipped with a roller at one end near the photovoltaic panel (8), and the auxiliary plate (10) is tumblingly connected to the upper surface of the photovoltaic panel (8) through the roller.

6. A high efficiency photovoltaic module cleaning apparatus as set forth in claim 1, wherein, The number of cleaning nozzles (4) is multiple, and the multiple cleaning nozzles (4) are evenly distributed along the length direction of the second cleaning arm (3), and the multiple cleaning nozzles (4) are connected to the external water supply pipeline through the same water supply pipe.

7. A high efficiency photovoltaic module cleaning apparatus as set forth in claim 1, wherein, The second cleaning arm (3) has a cleaning brush (14) slidably installed on the side of the photovoltaic panel (8) facing the light, and the bristles of the cleaning brush (14) are in contact with the light-facing surface of the photovoltaic panel (8). The movable base (1) is equipped with a drive mechanism. The lower end of the cleaning brush (14) is connected to the movable end of the drive mechanism through a movable rod (15). The drive mechanism drives the cleaning brush (14) to move back and forth along the height direction of the photovoltaic panel (8).

8. A high efficiency photovoltaic module cleaning apparatus as claimed in any one of claims 1 to 7, wherein, It also includes a walking device (11), on which a water tank (12) is installed. A cantilever (13) is installed on the side of the water tank (12). The movable base (1) is rotatably connected to the cantilever (13) through a rotating shaft, and the movable base (1) is driven by a servo motor to flip between the water tank (12) and the photovoltaic panel (8).

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