Photovoltaic panel cleaning device

Abstract

A photovoltaic panel cleaning device relates to the field of photovoltaic technology and comprises a mounting frame, a cleaning roller is rotatably connected in the mounting frame, a central motor is arranged on the outer side of the mounting frame, an output shaft of the central motor is connected with the cleaning roller, a spraying pipe is arranged on the inner wall of the mounting frame, and dustproof mechanisms are arranged on two sides of the mounting frame. The photovoltaic panel cleaning device is clamped on the photovoltaic panel through the guide mechanism, the walking motor is used for driving the walking wheels to move, meanwhile, the submersible pump sprays cleaning liquid to the surface of the photovoltaic panel, and the center motor drives the cleaning roller to rotate for cleaning. And in the moving process, the blowing nozzles blow away dust in advance, the water absorption sponge blocks absorb excessive water, the blowing nozzles on the other side blow-dry the surface, and it is ensured that no residues exist.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, and in particular to a photovoltaic panel cleaning device. Background Art

[0002] As the core component of a solar power generation system, the surface condition of photovoltaic panels is directly related to their photoelectric conversion efficiency and long-term operational reliability. Therefore, regular and effective maintenance and cleaning are crucial to ensure that photovoltaic panels maintain optimal performance, extend their service life, and maximize power generation output.

[0003] Chinese patent CN110732506B proposes a photovoltaic panel cleaning robot for photovoltaic power plants. This robot, equipped with an integrated wheel system, can move across the panels. It is equipped with a brush roller and a cleaning cotton roller to clean the panel surface. After the cleaning cotton roller wets the panel surface, a large amount of moisture remains. If the brush roller continues to perform dry sweeping operations in adjacent areas, it may not only fail to effectively remove new or stubborn stains, but may also redistribute the newly wetted and loosened dust particles due to the sweeping action, causing these particles to reattach to the panel surface, resulting in secondary contamination. Utility Model Content

[0004] The purpose of the present invention is to solve the problems raised in the above background technology, and then proposes a photovoltaic panel cleaning device.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] The cleaning roller is connected with the cleaning roller in a rotating manner within the cleaning roller, and a central motor is provided on the outer side of the cleaning roller, and a spray pipe is provided on the inner wall of the cleaning roller. The cleaning roller is connected with the cleaning roller at two sides of the cleaning roller. The cleaning roller is connected with the cleaning roller at two sides of the cleaning roller.

[0007] Furthermore, a dust cover is formed on the top of the mounting frame.

[0008] Furthermore, the flexible spring can drive the water-absorbing sponge block to move in a direction away from the support plate.

[0009] Furthermore, it also includes a water storage tank, in which a submersible pump is provided. The submersible pump is connected to a spray joint through a water pipe, and the spray joint is fixedly connected to the spray pipe.

[0010] Furthermore, the mounting frame is provided with a walking mechanism and a guiding mechanism.

[0011] Furthermore, the walking mechanism includes a walking motor and a walking wheel. Two walking motors are provided on the rear plate. The two walking motors are respectively located on both sides of the central motor. The output shaft of the walking motor passes through the rear plate and is connected to the walking wheel. Two walking wheels are provided on the front plate.

[0012] Furthermore, the front plate and the rear plate are both provided with a guide mechanism, and the guide mechanism includes a first vertical plate, the first vertical plate is connected to a first horizontal plate, a rotating shaft is installed on the first horizontal plate, and a guide wheel is installed on the rotating shaft. The two guide mechanisms are respectively clamped on the upper and lower side frames of the photovoltaic panel, and the walking wheels are in contact with the surface of the photovoltaic panel.

[0013] Compared to existing technologies, this new device offers the following advantages: It clips onto the photovoltaic panel via a guide mechanism, uses a travel motor to drive the travel wheels, and simultaneously, a submersible pump sprays cleaning fluid onto the panel surface. A central motor drives the cleaning rollers to rotate and clean the panel. During this process, the air nozzles preemptively remove dust, the absorbent sponge absorbs excess moisture, and the air nozzles on the other side dry the surface, ensuring no residue. This device achieves efficient and comprehensive cleaning of photovoltaic panels, improving cleaning effectiveness and efficiency while also being easy to operate and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the main view of the utility model;

[0015] Figure 2 Schematic diagram of the structure of the guide mechanism;

[0016] Figure 3 It is a top view of the utility model;

[0017] Figure 4 for Figure 3 A partial enlarged view of the middle part;

[0018] Among them: 1 installation frame, 11 front plate, 12 rear plate, 13 side plate, 131 vertical plate, 132 support plate,

[0019] 21 center motor, 22 cleaning roller,

[0020] 3 spray pipes, 31 spray joints,

[0021] 4 walking mechanism, 41 walking motor, 42 walking wheel,

[0022] 5 guide mechanism, 51 first vertical plate, 52 first horizontal plate, 53 rotating shaft, 54 guide wheel,

[0023] 61 limit plate, 62 guide rod, 63 air blowing nozzle, 64 flexible spring, 65 U-shaped frame, 66 water-absorbing sponge block, DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. The present invention is further described in conjunction with the drawings and embodiments:

[0025] like Figures 1-4 The photovoltaic panel cleaning device shown in FIG. 1 includes a mounting frame 1 made of a high-strength, lightweight aluminum alloy to ensure structural strength while reducing overall weight. A cleaning roller 22 is rotatably connected within the mounting frame. The cleaning roller is covered with a wear-resistant and absorbent microfiber fabric to enhance cleaning effectiveness. The cleaning roller can be replaced with brushes of different materials or roughness to accommodate different photovoltaic panel cleaning needs.

[0026] A central motor 21 is provided on the outside of the mounting frame, preferably a high-efficiency, energy-saving permanent magnet synchronous motor to reduce energy consumption and increase driving force. The output shaft of the central motor is connected to a cleaning roller. A spray pipe 3 is provided on the inner wall of the mounting frame, and dustproof mechanisms are provided on both sides of the mounting frame.

[0027] Furthermore, a dust cover is formed on the top of the installation frame. The dust cover is made of transparent and aging-resistant polycarbonate material, which can not only protect from dust during cleaning, but also facilitate observation of the cleaning process.

[0028] In at least one embodiment, the mounting frame includes a front panel 11, a rear panel 12, and two side panels 13. The front panel, rear panel, and side panels are connected by high-strength bolts to form a stable rectangular frame. Sealing strips are provided at the joints to prevent moisture and dust from entering. The specific dimensions of the mounting frame can be customized according to the specifications of the photovoltaic panels to ensure a perfect fit.

[0029] Furthermore, the side panels include vertical panels 131 and support panels 132, wherein the vertical panels are fixedly connected between the front and rear panels. The support panels are fixedly connected to the vertical panels to facilitate the installation of the dustproof mechanism. The vertical panels 131 and support panels 132 are processed using laser cutting and bending processes to ensure accurate dimensions and stable structure.

[0030] Furthermore, the dust-proof mechanism includes a guide rod 62. The support plate is provided with a through-hole, in which the guide rod is slidably fitted. A limit plate 61 is provided at the top of the guide rod, and a U-shaped frame 65 is provided at the bottom of the guide rod. A water-absorbing sponge block 66 is installed in the U-shaped frame. A flexible spring 64 is provided between the U-shaped frame and the support plate. An air blowing nozzle 63 is provided at the end of the support plate. The air blowing nozzle uses an efficient and energy-saving pneumatic nozzle connected to an air pump. The air pump can be a silent and stable diaphragm pump. It is placed on a traveling trolley and connected to the nozzle via a hose for easy movement and use.

[0031] The solution is refined, and the flexible spring can drive the water-absorbing sponge block to move in a direction away from the support plate, so that the water-absorbing sponge block can be pressed against the surface of the photovoltaic panel when working to absorb dust on the surface of the photovoltaic panel.

[0032] like Figure 3 As shown, both side panels are equipped with air blowers. If the device is moved horizontally to the right, the air blower on the right side will preemptively blow away dust and foreign matter adhering to the surface of the photovoltaic panels at an angle, forcing the dust away from the device. Meanwhile, the air blower on the left side can blow air onto the photovoltaic panels that have just been wiped dry by the absorbent sponge. Because the surface of the photovoltaic panels that have been absorbed by the absorbent sponge is essentially free of moisture, the air blower dries it immediately, preventing any dust from clinging to them.

[0033] In at least one embodiment, the photovoltaic panel cleaning device also includes a water tank constructed of food-grade stainless steel to ensure safe and hygienic water storage. A submersible pump, low-power and high-lift, is housed within the tank and connected to a spray connector 31 via a high-pressure water hose. The connector is fixedly attached to the spray pipe. The spray connector utilizes a uniform spray design to ensure even coverage of the cleaning solution across the photovoltaic panel surface.

[0034] The reason for not using the existing inner tube water storage method is that once filled with water, the entire cleaning mechanism becomes extremely heavy, making it inconvenient to lift to the photovoltaic panel and even causing damage to the photovoltaic panel. The water tank in this case can be placed on a walking trolley, which can be manually pulled to move it with ease. The water tank is also designed to be detachable for easy filling and cleaning.

[0035] In at least one embodiment, a walking mechanism 4 and a guiding mechanism 5 are provided on the mounting frame.

[0036] Furthermore, the travel mechanism includes a travel motor 41 and travel wheels 42. Two travel motors are located on the rear panel, one on either side of the central motor. The output shafts of the travel motors pass through the rear panel and are connected to the travel wheels. Two travel wheels are also located on the front panel. The travel motor 41 is also a highly efficient and energy-saving permanent magnet synchronous motor, and the travel wheels 42 are made of wear-resistant and non-slip rubber, ensuring stability and no damage to the photovoltaic panel surface. The travel mechanism can be upgraded to a tracked version to accommodate more complex or steeper photovoltaic panel installation environments.

[0037] Furthermore, both the front and rear panels are equipped with guide mechanisms, comprising a first vertical plate 51 connected to a first horizontal plate 52, a rotating shaft 53 mounted on the first horizontal plate, and guide wheels 54 mounted on the rotating shaft. The two guide mechanisms are respectively attached to the upper and lower frames of the photovoltaic panel, while the running wheels contact the surface of the photovoltaic panel. The guide wheels have a non-slip texture on the surface, which enhances friction with the photovoltaic panel frame, ensuring that the device does not slip or shift during cleaning.

[0038] To operate, the photovoltaic panel cleaning device uses guides (guide wheels) to clip the device onto the upper and lower frames of the photovoltaic panel. Ensure the water tank on the trolley is adequately filled with cleaning fluid. Connect the submersible pump to the spray hose, and the air pump to the air nozzle. Check that the cleaning rollers, running wheels, guide wheels, and other components are securely installed to ensure the device is in good working condition. Adjust the device's position to ensure the cleaning rollers maintain an appropriate distance from the photovoltaic panel surface for proper cleaning.

[0039] Start the travel motor, driving the travel wheels to slowly move the machine along the surface of the photovoltaic panels. Simultaneously, start the submersible pump to evenly spray the cleaning fluid from the spray pipe onto the surface of the photovoltaic panels. Start the center motor to drive the cleaning roller to rotate and clean the surface of the photovoltaic panels.

[0040] As the machine moves, the air nozzles on one side preemptively blow away dust and foreign matter adhering to the photovoltaic panel surface at an angle. The air nozzles on the other side dry the photovoltaic panel surface, which has just been cleaned by the cleaning roller and absorbent sponge, ensuring that there is no residual moisture or dust on the surface. The absorbent sponge, supported by a flexible spring, presses against the photovoltaic panel surface, effectively absorbing excess moisture and dust.

[0041] As the machine moves, the cleaning, dust removal, and drying steps are repeated until the entire photovoltaic panel surface is cleaned. During the cleaning process, the walking speed, spray volume, and blowing intensity can be adjusted as needed to achieve the best cleaning effect.

[0042] After cleaning, turn off all motors and pumps and remove the device from the photovoltaic panels. Clean and inspect the device to ensure that all components are free of damage or wear. Store the device in a dry and well-ventilated place for future use.

[0043] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic panel cleaning device, characterized in that: The cleaning roller is rotatably connected to the mounting frame, and a central motor is provided on the outer side of the mounting frame, and the output shaft of the central motor is connected to the cleaning roller, and a spray pipe is provided on the inner wall of the mounting frame, and a dust-proof mechanism is provided on both sides of the mounting frame, and the mounting frame comprises a front plate, a rear plate and two side plates, and the front plate, the rear half and the two side plates are fixedly connected to form a rectangular frame, and the side plates comprise a vertical plate and a support plate, wherein the vertical plate is fixedly connected between the front plate and the rear plate, and the support plate is fixedly connected to the vertical plate, and the dust-proof mechanism comprises a guide rod, and the support plate is provided with a through hole, and the guide rod is slidably fitted in the through hole, and a limit plate is provided at the top of the guide rod, and a U-shaped frame is provided at the bottom of the guide rod, and a water-absorbing sponge block is installed in the U-shaped frame, and a flexible spring is provided between the U-shaped frame and the support plate, and an air blowing nozzle is provided at the end of the support plate.

2. The photovoltaic panel cleaning device according to claim 1, characterized in that: A dust cover is formed on the top of the installation frame.

3. The photovoltaic panel cleaning device according to claim 1 or 2, characterized in that: The flexible spring can drive the water-absorbing sponge block to move in a direction away from the support plate.

4. The photovoltaic panel cleaning device according to claim 1, characterized in that: The utility model also includes a water storage tank, in which a submersible pump is arranged. The submersible pump is connected to a spray joint through a water pipe, and the spray joint is fixedly connected to the spray pipe.

5. The photovoltaic panel cleaning device according to claim 2, characterized in that: A walking mechanism and a guiding mechanism are provided on the installation frame.

6. The photovoltaic panel cleaning device according to claim 5, characterized in that: The walking mechanism includes a walking motor and a walking wheel. Two walking motors are provided on the rear plate. The two walking motors are respectively located on both sides of the central motor. The output shaft of the walking motor passes through the rear plate and is connected to the walking wheel. Two walking wheels are provided on the front plate.

7. The photovoltaic panel cleaning device according to claim 5, characterized in that: Both the front plate and the rear plate are provided with a guide mechanism, and the guide mechanism includes a first vertical plate, the first vertical plate is connected to the first horizontal plate, the first horizontal plate is installed with a rotating shaft, and the rotating shaft is installed with a guide wheel. The two guide mechanisms are respectively clamped on the upper and lower side frames of the photovoltaic panel, and the walking wheels are in contact with the surface of the photovoltaic panel.

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