Solar photovoltaic panel cleaning device

Abstract

The utility model belongs to the field of photovoltaic equipment. The utility model provides a solar photovoltaic panel cleaning device to solve the problems that an existing cleaning device is unstable in cleaning effect and limited in application range. The solar photovoltaic panel cleaning device comprises a guide rail, a first driving mechanism, a first guide part, a second driving mechanism and a cleaning part. The first driving mechanism can be installed on the guide rail in a sliding mode and is provided with a first output end capable of rotating. The first output end of the first driving mechanism is in driving connection with the first guide part so as to enable the first driving mechanism to slide along the guide rail. The second drive mechanism is mounted to the first drive mechanism and has a rotatable second output end. The cleaning part is driven by the second output end to rotate so as to clean the solar photovoltaic panel. The solar photovoltaic panel cleaning device is easy to disassemble, assemble and use, multiple sets of photovoltaic panels can share one set of cleaning device, the cleaning quality is good, and the efficiency is high.

Description

Technical Field

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

[0002] Currently, solar photovoltaic panels are prone to being covered and accumulating dirt and dust during use. As the usage time increases, their power generation efficiency decreases. In order to ensure their good performance, it is necessary to clean the photovoltaic panels regularly.

[0003] Current methods and equipment for cleaning solar photovoltaic (PV) panels still face many problems. Many cleaning devices are limited by the location and environment of the PV panel installation, resulting in very low cleaning efficiency and hindering widespread adoption. In my country's PV distribution, the Northwest region, with its vast territory and abundant sunshine, is ideal for solar PV power generation. However, the Northwest is relatively dry, causing PV panels to easily accumulate dust and dirt. Traditional PV panel cleaning methods mostly involve manual water washing only when the dirt significantly impacts power generation efficiency. However, the Northwest region is arid and receives little rainfall, making this method not only time-consuming and labor-intensive but also a significant waste of water resources. While some mechanized cleaning equipment exists, it still has shortcomings. For example, CN202655267U discloses a dust collector for cleaning PV modules. This dust collector generally includes a dust collection hood, a central shaft inside the hood, both ends of the central shaft fixed to the hood, a drive motor connected to the central shaft, brushes on the central shaft, and at least one of a suction port or a water spray nozzle installed on the dust collection hood. This dust collector uses a hinged plate to connect to a sliding rod of the dust collection device, adjusting the distance between the dust collector and the photovoltaic module to be cleaned. However, due to the lack of a stable support structure, the device is difficult to operate and the cleaning effect is unstable. CN207339780U discloses a self-cleaning solar panel, which includes a frame and a solar panel body installed within the frame. Sliding grooves are provided on the left and right sides of the frame, and sliders slide within these grooves. A connecting shaft connects the sliders, and a roller brush that adheres to the surface of the solar panel body is mounted on the connecting shaft. Each slider is equipped with a corresponding drive mechanism. A front limit switch is provided on one side of the front of the frame, cooperating with the corresponding slider, and a rear limit switch is provided on one side of the rear of the frame, also cooperating with the corresponding slider. This cleaning method requires special design and modification of the solar panel's support structure, severely limiting its application scope.

[0004] Therefore, there is still much room for improvement in current solar photovoltaic panel cleaning devices. Utility Model Content

[0005] The main purpose of this utility model is to provide a solar photovoltaic panel cleaning device.

[0006] According to one aspect of the present invention, a solar photovoltaic panel cleaning device is provided, the cleaning device comprising:

[0007] guide;

[0008] A first drive mechanism, which is slidably mounted on a guide rail and has a rotatable first output end;

[0009] The first guide component is parallel to the guide rail, and the first output end of the first drive mechanism is driven to be connected to the first guide component to cause the first drive mechanism to slide along the guide rail.

[0010] A second drive mechanism is mounted on the first drive mechanism and has a rotatable second output end.

[0011] The cleaning component is driven to rotate by the second output terminal to clean the solar photovoltaic panel.

[0012] According to one embodiment of the present invention, the first output end includes a first output shaft and a first gear fixedly mounted on the first output shaft, and the first guide component includes a rack fixedly mounted thereon, with the first gear meshing with the rack.

[0013] According to one embodiment of the present invention, the cleaning component includes a brush, the first end of which is connected to a second output end and the axis of the brush is perpendicular to the extension direction of the guide rail.

[0014] According to one embodiment of the present invention, the cleaning component further includes a nozzle assembly, which includes a nozzle and a cleaning agent delivery pipeline communicating with the nozzle, the nozzle being located on the first side of the brush.

[0015] According to one embodiment of the present invention, the cleaning component further includes a scraper located on the second side of the brush, the second side being opposite to the first side.

[0016] According to one embodiment of the present invention, the cleaning device includes a second guide component, which is disposed at the second end of the brush and parallel to the first guide component, and the second guide component supports the brush to roll.

[0017] According to one embodiment of the present invention, the cleaning device includes a lifting bracket for controlling the distance between the cleaning component and the solar photovoltaic panel.

[0018] According to one embodiment of the present invention, the cleaning device includes two limit sensors disposed on both sides of the cleaning component, and the limit sensors are capable of detecting whether there is a solar photovoltaic panel in their respective corresponding areas.

[0019] According to one embodiment of the present invention, the cleaning device includes a battery that powers a first drive mechanism and a second drive mechanism.

[0020] According to one embodiment of the present invention, the cleaning device includes a cleaning agent supply system, which includes a cleaning agent storage tank and a delivery pump.

[0021] By adopting the above technical solution, the solar photovoltaic panel cleaning device of this utility model only requires slight modification to the original photovoltaic panel mounting bracket, adding a fixed connection device. It can achieve automatic cleaning of photovoltaic panels in continuous areas without changing or adjusting the original mounting bracket. During cleaning, the distance between the cleaning components and the photovoltaic panel is stable and controllable, ensuring cleaning quality while allowing continuous operation without manual intervention. The solar photovoltaic panel cleaning device of this utility model has a compact structure, is easy to assemble, disassemble, and use, and multiple photovoltaic panels can share one cleaning device, thus significantly reducing the cost of the cleaning equipment. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 A side view of a solar photovoltaic panel cleaning device according to an embodiment of the present invention is shown when it is installed on a solar photovoltaic panel;

[0024] Figure 2 Another view is shown of a solar photovoltaic panel cleaning device installed on a solar photovoltaic panel according to an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures

[0026] 10. Guide rail; 11. Slider; 20. First drive mechanism; 21. First output shaft; 22. First gear; 30. First guide component; 40. Second drive mechanism; 50. Cleaning component; 51. Brush; 52. Nozzle assembly; 52a. Nozzle; 52b. Cleaning agent delivery pipeline; 53. Scraper; 54. Second gear; 60. Second guide component; 70. Lifting bracket; 80. Limit sensor; 90. Upper mounting plate; 91. Upper connector; 92. Lower mounting plate; 93. Lower connector; SP. Photovoltaic panel; PB. Panel bracket; G. Ground. Detailed Implementation

[0027] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as “length,” “width,” “upper,” “lower,” “left,” “right,” “front,” “rear,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” indicate orientations or positions based on the orientations or positions shown in the accompanying drawings and are merely for ease of description and should not be construed as limiting the invention.

[0029] The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion; the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. "A plurality of" means two or more, unless otherwise explicitly specified.

[0030] In the description, claims, and accompanying drawings of this utility model, when an element is referred to as "fixed to," "mounted to," "set on," or "connected to" another element, it can be directly or indirectly located on that other element. For example, when an element is referred to as "connected to" another element, it can be directly or indirectly connected to that other element.

[0031] Furthermore, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0032] Figure 1 A side view of a solar photovoltaic panel cleaning device according to an embodiment of the present invention is shown when it is installed on a solar photovoltaic panel. Figure 2 Another view shows the solar photovoltaic panel cleaning device installed on the solar photovoltaic panel.

[0033] like Figure 1-2As shown, one objective of this utility model is to provide a solar photovoltaic panel cleaning device, which generally includes a guide rail, a first drive mechanism, a first guide component, a second drive mechanism, and a cleaning component. The first drive mechanism is slidably mounted on the guide rail and has a rotatable first output end. The first guide component is parallel to the guide rail, and the first output end of the first drive mechanism is drivenly connected to the first guide component to cause the first drive mechanism to slide along the guide rail. The second drive mechanism is mounted on the first drive mechanism to slide together with it, and the second drive mechanism has a rotatable second output end. The cleaning component is driven to rotate by the second output end to clean the solar photovoltaic panel.

[0034] When the solar photovoltaic panel cleaning device of this utility model is in use, under the rotation of the first driving mechanism, its first output end and the first guiding component generate a driving effect, causing the first driving mechanism to slide along the guide rail. The second driving mechanism slides along with the first driving mechanism. While the second driving mechanism slides along the guide rail, it drives the cleaning component to rotate, so that the cleaning component moves along the surface of the solar photovoltaic panel and rolls to clean the solar photovoltaic panel.

[0035] The solar photovoltaic panel cleaning device of this invention only requires slight modifications to the original photovoltaic panel mounting bracket, adding a fixed connection device. It achieves automatic cleaning of photovoltaic panels in a continuous area without altering or adjusting the original mounting bracket. During cleaning, the distance between the cleaning components and the photovoltaic panel is stable and controllable, ensuring cleaning quality while allowing continuous operation without manual intervention. The solar photovoltaic panel cleaning device of this invention has a compact structure, is easy to assemble, disassemble, and use, and multiple photovoltaic panels can share one cleaning device, thus significantly reducing the cost of the cleaning equipment.

[0036] The following description, with reference to specific accompanying drawings and examples, illustrates some embodiments of the solar photovoltaic panel cleaning device according to the present invention.

[0037] Further as Figure 1-2 As shown, the solar photovoltaic panel cleaning device generally includes a guide rail 10, a first drive mechanism 20, a first guide component 30, a second drive mechanism 40, and a cleaning component 50.

[0038] The guide rail 10 is used to guide and constrain the movement of the cleaning component 50 and other auxiliary components. The guide rail 10 can be a hollow beam structure, which can be fixedly installed to the support structure of the solar photovoltaic panel. For example, in... Figure 1 In the illustrated embodiment, the photovoltaic panel SP is mounted on the panel support PB at an angle. One end of the photovoltaic panel SP ( Figure 1 The middle left end (hereinafter referred to as the lower end) is closer to the ground G, while the other end ( Figure 1The photovoltaic panel SP has a relatively large distance from the ground G at its right-hand end (hereinafter referred to as the upper end), resulting in a sloping surface. The guide rail 10 can be positioned near the upper end of the photovoltaic panel SP and extend parallel to the ground. For example, an upper mounting plate 90 can be used to assist in the installation and positioning of the guide rail 10. The upper mounting plate 90 is fixedly connected to the panel support PB via an upper connector 91. The upper mounting plate 90 may include a first plate and a second plate with an "L"-shaped cross-section. The first plate can be parallel to the photovoltaic panel SP, with its proximal end connected to the panel support PB via the connector 91, and its distal end connected to the second plate. The second plate of the upper mounting plate 90 is generally perpendicular to the first plate and extends away from the photovoltaic panel SP. The guide rail 10 can be positioned on the outer surface of the second plate of the upper mounting plate 90 (i.e., the side facing away from the panel support PB). Positioning the guide rail 10 near the upper end of the photovoltaic panel SP prevents dust and dirt from falling during cleaning from adhering to the drive mechanism, thus preventing contaminant accumulation and extending the equipment's lifespan. Optionally, in some embodiments, the guide rail 10 may include two or more beams spaced apart and arranged parallel to each other on the outer surface of the second plate to enhance the stability of the sliding support.

[0039] The installation of the aforementioned mounting plate and connectors does not require altering the inherent structure of the original photovoltaic panel support PB. The cleaning device can be installed simply by adding the corresponding mounting plate and connectors to the existing structure, which reduces the requirements and modifications to the original photovoltaic panel structure and expands the scope of application of the device.

[0040] However, it is understood that the use of this disclosure is not limited to the structure described above. For example, the guide rail 10 may be inclined in a direction parallel to the tilt direction of the photovoltaic panel SP (i.e., set in a direction parallel to the tilt direction of the photovoltaic panel SP). Figure 2 (shown as the left or right side of the photovoltaic panel SP), in such a structure, the cleaning component 50 is along... Figure 2 The photovoltaic panel SP shown slides vertically, rather than horizontally as currently depicted. Therefore, such a deformed structure is also included within the scope of this disclosure.

[0041] The first drive mechanism 20 is used to move the cleaning component 50 laterally along the photovoltaic panel SP (i.e., in a direction parallel to the extension direction of the guide rail 10). For this purpose, the first drive mechanism 20 can be slidably mounted on the guide rail 10; for example, the first drive mechanism 20 is mounted on a slider 11, which is sleeved on the guide rail 10. The first drive mechanism 20 has a rotatable first output end. Specifically, the first drive mechanism 20 can be, for example, a servo motor with an output shaft that outputs rotational torque.

[0042] Optionally, in one specific embodiment, the first output end may include a first output shaft 21 and a first gear 22 fixedly mounted on the first output shaft 21. The first output shaft 21 may be the output shaft of a motor, and the first gear 22 is sleeved on the end of the first output shaft 21 and the two are fixedly connected, thereby the first gear 22 rotates synchronously with the first output shaft 21.

[0043] The first guide member 30 is used to interact with the first output end of the first drive mechanism 20 to cause the first drive mechanism 20 to slide along the guide rail 10. The first guide member 30 is generally parallel to the guide rail 10, and the first output end of the first drive mechanism 20 can be driven to connect with the first guide member 30 to cause the first drive mechanism 20 to slide along the guide rail 10.

[0044] In a specific embodiment, such as Figure 1 As shown, the first guide component 30 employs a rack, which is fixedly mounted on the upper mounting plate 90. The output shaft of the first drive mechanism 20 can extend parallel to the second plate of the upper mounting plate 90 and obliquely upward relative to the ground G. The first gear 22 is mounted on the upper end of the output shaft. To mesh with the first gear 22, the rack can be mounted near the connection between the first and second plates of the upper mounting plate 90, and its specific mounting position must match the size of the first gear 22 used. The toothed side of the rack is opposite to the teeth of the first gear 22 so that the two mesh. When the first gear 22 rotates with the output shaft of the first drive mechanism 20, due to the meshing action between the first gear 22 and the rack, the first gear 22 is pushed to move laterally on the rack, while simultaneously causing the first drive mechanism 20 to slide along the guide rail 10.

[0045] The second drive mechanism 40 is used to drive the cleaning component 50 to rotate, thereby cleaning dirt from the surface of the photovoltaic panel SP. The second drive mechanism 40 can be mounted on the first drive mechanism 20, for example, the second drive mechanism 40 can be mounted on the housing of the first drive mechanism 20. The second drive mechanism 40 has a rotatable second output end to drive the cleaning component 50 to rotate. The second drive mechanism 40 can also be a servo motor, the direction of which can be parallel or perpendicular to the direction of the output shaft of the first drive mechanism 20, depending on the positioning direction of the guide rail 10 relative to the photovoltaic panel SP. Figure 1 In the illustrated embodiment, the extension direction of the output shaft of the second drive mechanism 40 is perpendicular to the extension direction of the output shaft of the first drive mechanism 20. A cleaning component 50 is connected to the second output end of the second drive mechanism 40 to rotate and clean the photovoltaic panel PB.

[0046] In some embodiments, the cleaning component 50 includes a brush 51, which comprises a roller shaft, a roller, and bristles disposed on the surface of the roller. The roller shaft is connected to the output shaft of the second drive mechanism 40 via a coupling. The axis of the roller shaft is perpendicular to the extension direction of the guide rail 10. The length of the roller is slightly larger than the dimension of the photovoltaic panel PB in the direction parallel to the roller (hereinafter referred to as the longitudinal direction), for example, the roller is about 10 cm longer than the photovoltaic panel PB. The excess length of the roller is evenly distributed on both sides of the photovoltaic panel PB, thereby thoroughly cleaning the photovoltaic panel PB. In a specific embodiment, the bristles of the brush 51 may be made of nanofiber cotton, which has a strong adsorption effect and is soft in material, and will not scratch the surface of the photovoltaic panel PB. Optionally, in some embodiments, the brush 51 may also include a frame surrounding the roller of the brush 51, and the frame is supported on the roller shaft via bearings.

[0047] Optionally, in some embodiments, the cleaning component 50 may further include a nozzle assembly 52. ​​The nozzle assembly 52 is used to spray cleaning agent onto the photovoltaic panel PB to improve cleaning efficiency. For example, the nozzle assembly 52 may include a nozzle 52a and a cleaning agent delivery line 52b communicating with the nozzle 52a. The cleaning agent delivery line 52b may be fixedly mounted on the long side of the brush 51 frame located on a first side of the brush 51, which is the front side in the direction of movement during cleaning. The cleaning agent delivery line 52b may extend throughout the entire longitudinal dimension of the photovoltaic panel PB, and the nozzle assembly 52 may include a plurality of nozzles 52a evenly distributed along the cleaning agent delivery line 52b.

[0048] Optionally, in some embodiments, the cleaning component 50 may further include a scraper 53. The scraper 53 may be located on a second side of the brush 51, which is the rear side in the direction of movement during cleaning; that is, the brush 51 is located between the nozzle assembly 52 and the scraper 53. The scraper 53 may extend throughout the entire longitudinal dimension of the photovoltaic panel PB and may be fixedly connected to the brush frame. The scraper 53 may be made of rubber, and the rubber scraper must have a certain degree of corrosion resistance and elasticity.

[0049] Optionally, in some embodiments, to further improve the stability of the cleaning component 50 during cleaning, a second guide component 60 may be provided at the second end of the cleaning component 50. For example... Figure 1 As shown, a lower mounting plate 92 can be provided at the lower end of the panel support PB, and the lower mounting plate 92 is fixedly connected to the lower end of the panel support PB via a lower connector 93. In this embodiment, the lower mounting plate 92 is parallel to the photovoltaic panel SP. A second guide member 60 can be installed on the upper surface of the lower mounting plate 92. The second guide member 60 can be a rack, and a second gear 54 can be fixedly connected to the lower end of the roller shaft of the brush 51. The second gear 54 meshes with the rack located at the lower end to provide support for the brush 51 when it rolls and moves laterally, thereby enhancing the stability of the structure.

[0050] Optionally, in some embodiments, in order to improve the cleaning effect, the cleaning device of this disclosure first sprays the cleaning agent during the cleaning operation. After all areas have been sprayed, the rolling brushing and drying work is started from the area where the cleaning agent was first sprayed. Since a period of time has passed between spraying the cleaning agent and the brushing operation, the cleaning agent can wet and soak the dirt on the surface of the photovoltaic panel SP, thereby cleaning more effectively.

[0051] In this case, the cleaning component 50 needs to have a lifting function. In some embodiments, a lifting bracket 70 can be provided for the solar photovoltaic panel cleaning device to control the distance between the cleaning component 50 and the solar photovoltaic panel SP. The lifting bracket 70 can be installed only at the end of the cleaning component 50 away from the second drive mechanism 40. In this case, the output shaft of the second drive mechanism 40 and the roller shaft of the brush 51 can be connected by a universal coupling, which allows a certain angular or linear displacement between the two shafts. When the lower end of the cleaning component 50 is raised or lowered, the connection between the output shaft of the second drive mechanism 40 and the roller shaft of the brush 51 can be adaptively adjusted. Optionally, lifting brackets 70 can be provided at both ends of the cleaning component 50. For example, one lifting bracket 70 is installed between the housing of the first drive mechanism 20 and the housing of the second drive mechanism 40, and the other lifting bracket 70 is installed between the second guide component 60 and the lower mounting plate 92. The lifting bracket 70 can specifically adopt a manual distance adjustment structure, such as bolts or screw holes, or an electric adjustment structure, such as a cylinder. When the cleaning agent is sprayed, the lifting bracket 70 is used to move the brush 51, scraper 53 and other components to a high position with a gap between them and the photovoltaic panel SP, so that the cleaning agent can remain on the surface of the photovoltaic panel SP without being removed. After all areas have been sprayed, the cleaning component 50 is moved back to the area where the cleaning agent was first sprayed, and the lifting bracket 70 is used to move the brush 51, scraper 53 and other components to a low position that can contact the photovoltaic panel SP, so that the brush 51 and scraper 53 can perform rolling brushing and scraping operations.

[0052] Optionally, in some embodiments, to facilitate the device's automatic determination of the starting direction and ending position of the cleaning operation, limit sensors 80 can be provided for the cleaning device. For example, in a specific embodiment, the cleaning device may include two limit sensors 80 disposed on both sides of the cleaning component 50. The two limit sensors 80 can detect whether there are solar photovoltaic panels SP in the corresponding areas on both sides. For example, the two limit sensors 80 can be mounted on the brush frame, with the front limit sensor 80 positioned further forward than the nozzle 52a and the rear limit sensor 80 positioned further backward than the scraper 53. The limit sensors 80 can specifically be infrared sensors or cameras. The infrared sensor emits an infrared beam towards the surface of the photovoltaic panel SP. If the sensor detects reflected light, it indicates that there are still photovoltaic panels SP below the cleaning device, and the cleaning can continue. When no reflected light is received, it indicates that the cleaning device has moved to the edge of the photovoltaic panel SP, and the cleaning component 50 must stop moving in that direction. The camera takes a picture of the photovoltaic panel SP, and image processing is used to identify whether there are photovoltaic panels SP in the detection area. By setting limit sensors, it is possible to clean photovoltaic panels SP of different installation lengths. The limit sensor 80 is configured on the cleaning device, eliminating the need to install limit switches on both sides of the photovoltaic panel SP, making installation more convenient, and facilitating control and relocation to other photovoltaic panel SPs.

[0053] Optionally, in some embodiments, the cleaning device may further include a controller that receives information collected by the limit sensor 80 and adjusts the operation of the first drive mechanism 20, the second drive mechanism 40, etc., based on the information collected by the limit sensor 80. For example, when the controller determines, based on the information collected by the limit sensor 80, that the cleaning component 50 has moved to the edge of the photovoltaic panel SP, it commands the first drive mechanism 20 to reverse and move in the opposite direction.

[0054] Optionally, in some embodiments, the cleaning device further includes a battery to power the first drive mechanism 20 and the second drive mechanism 40, sensors, controllers, and other components. Using a rechargeable battery makes the device more portable and efficient.

[0055] Optionally, in some embodiments, the cleaning apparatus further includes a cleaning agent delivery system, which may include a cleaning agent storage tank and a delivery pump. The cleaning agent storage tank is used to store cleaning agent, and the delivery pump is used to pump the cleaning agent in the storage tank to the cleaning agent delivery line 52b.

[0056] The following is for reference Figure 2 The steps for using the solar photovoltaic panel cleaning device according to an embodiment of the present invention are described below:

[0057] Step 1: Install the cleaning device onto the panel bracket PB. No specific installation side needs to be specified during installation; simply install the device on one end of the photovoltaic panel SP. At this time, the limit sensor 80 determines the direction of movement through signal detection. If the left limit sensor 80 detects the photovoltaic panel SP while the right limit sensor 80 does not, the first drive mechanism 20 is operated to move the cleaning component 50 to the left. If the left limit sensor 80 does not detect the photovoltaic panel SP while the right limit sensor 80 does, the first drive mechanism 20 is operated to move the cleaning component 50 to the right. Therefore, its initial movement direction is determined by the limit sensor 80 and the controller.

[0058] Step 2: Using the lifting bracket 70, move the brush 51, scraper 53, and other components to a high position with a gap between them and the photovoltaic panel SP. Start the first drive mechanism 20 to make the cleaning component 50 move in a determined direction. At the same time, start the delivery pump to deliver cleaning agent to the nozzle 52a through the cleaning agent delivery pipe 52b. As the cleaning component 50 moves along the surface of the photovoltaic panel SP, the cleaning agent is evenly sprayed on the surface of the photovoltaic panel SP until the limit sensor 80 on the front side of the movement direction can no longer detect the photovoltaic panel SP. At this time, the first drive mechanism 20 should stop running and reverse to return to the initial position of cleaning agent spraying. First, evenly spray the cleaning agent on the surface of the photovoltaic panel SP, and then perform rolling scrubbing. There is a certain time interval between the two operations so that the cleaning agent can wet and soak the dirt on the surface of the photovoltaic panel SP, thereby cleaning more effectively.

[0059] Step 3: When the cleaning device moves to the initial position of the cleaning agent spraying, the first drive mechanism 20 stops and reverses again. The lifting bracket 70 moves the brush 51, scraper 53 and other components to a low position that can contact the photovoltaic panel SP. The second drive mechanism 40 is started to drive the brush 51 to rotate. The dirt on the surface of the photovoltaic panel SP is brushed away by the rolling of the brush 51. The scraper 53 presses lightly on the photovoltaic panel SP to brush away the dirt and cleaning agent that was not removed by the brush 51.

[0060] Step 4: During the brushing process, when the limit sensor 80 on the front side of the brushing motion can no longer detect the photovoltaic panel SP, the first drive mechanism 20 should stop running, and the cleaning of the photovoltaic panel SP in this area is completed.

[0061] The solar photovoltaic panel cleaning device according to one embodiment of the present invention can also be manually controlled. For example, manual control buttons can be provided on the first drive mechanism 20 and the second drive mechanism 40. When the cleaning device is not equipped with a limit sensor or the limit sensor is faulty, the manual control buttons on the first drive mechanism 20 and the second drive mechanism 40 can be used to control the lateral movement and the roller brush of the device. In addition to the start / stop function, the manual control button of the first drive mechanism 20 can also change the lateral movement direction of the first drive mechanism 20 (for example, by controlling the forward and reverse rotation of the motor to change the direction). Furthermore, the manual control button can also be used for emergency shutdown when an emergency stop is required.

[0062] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0063] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0064] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A solar photovoltaic panel cleaning device, characterized in that, include: Guide rail (10); A first drive mechanism (20) is slidably mounted on the guide rail (10) and has a rotatable first output end; A first guide component (30) is parallel to the guide rail (10), and the first output end of the first drive mechanism (20) is driven to be connected to the first guide component (30) to cause the first drive mechanism (20) to slide along the guide rail (10). The second drive mechanism (40) is mounted on the first drive mechanism (20) and has a rotatable second output end; A cleaning component (50) is driven to rotate by the second output terminal to clean the solar photovoltaic panel.

2. The solar photovoltaic panel cleaning device according to claim 1, characterized in that, The first output end includes a first output shaft (21) and a first gear (22) fixedly mounted on the first output shaft (21). The first guide component (30) includes a fixedly mounted rack, and the first gear (22) meshes with the rack.

3. The solar photovoltaic panel cleaning device according to claim 1, characterized in that, The cleaning component (50) includes a brush (51), the first end of which is connected to the second output end and the axis of the brush (51) is perpendicular to the extension direction of the guide rail (10).

4. The solar photovoltaic panel cleaning device according to claim 3, characterized in that, The cleaning component (50) further includes a nozzle assembly (52), which includes a nozzle (52a) and a cleaning agent delivery line (52b) in communication with the nozzle (52a), the nozzle (52a) being located on the first side of the brush (51).

5. The solar photovoltaic panel cleaning device according to claim 4, characterized in that, The cleaning component (50) also includes a scraper (53) located on a second side of the brush (51), the second side being opposite to the first side.

6. The solar photovoltaic panel cleaning device according to claim 3, characterized in that, The cleaning device includes a second guide member (60), which is disposed at the second end of the brush (51) and parallel to the first guide member (30), and the second guide member (60) supports the brush (51) to roll.

7. The solar photovoltaic panel cleaning device according to claim 6, characterized in that, The cleaning device includes a lifting bracket (70) for controlling the distance between the cleaning component (50) and the solar photovoltaic panel.

8. The solar photovoltaic panel cleaning device according to claim 1, characterized in that, The cleaning device includes two limit sensors (80) disposed on both sides of the cleaning component (50), and the limit sensors (80) can detect whether there is a solar photovoltaic panel in their respective areas.

9. The solar photovoltaic panel cleaning device according to claim 1, characterized in that, The cleaning device includes a battery that powers the first drive mechanism (20) and the second drive mechanism (40).

10. The solar photovoltaic panel cleaning device according to claim 1, characterized in that, The cleaning device includes a cleaning agent supply system, which includes a cleaning agent storage tank and a delivery pump.

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