Photovoltaic panel cleaning device

Abstract

This utility model relates to the field of photovoltaic power generation technology and discloses a photovoltaic panel cleaning device. This utility model, by setting a dirt detection component, can monitor the surface of the photovoltaic panel in real time. When dirt is detected, a corresponding signal is generated and transmitted to a control terminal. The control terminal generates a drive signal and transmits it to a first drive component, causing its drive end to move. Furthermore, by connecting the fixed end of the cleaning component to the drive end of the first drive component, the movement of the drive end can drive the cleaning component to move. Because the cleaning end and the fixed end move, the cleaning end can move across the surface of the photovoltaic panel. The reciprocating movement of the cleaning end across the photovoltaic panel surface cleans the dirt, achieving continuous and efficient cleaning operations. Compared to manual cleaning, this photovoltaic panel cleaning device can achieve mechanized and automated cleaning, reducing reliance on manpower, significantly improving cleaning efficiency, and lowering maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power generation technology, and specifically to a photovoltaic panel cleaning device. Background Technology

[0002] As global environmental protection requirements become increasingly stringent, power generation methods are gradually shifting from traditional thermal power generation to clean energy power generation. Solar power generation, due to its independence from regional influences and its status as one of the most promising, usable, and renewable energy sources, is being widely adopted.

[0003] Solar panels, as a crucial component of photovoltaic (PV) power generation, utilize the principles of photovoltaics to capture sunlight and convert it into electrical energy. They mainly consist of three parts: the photovoltaic panel itself, the controller, and the inverter. During long-term outdoor operation, existing photovoltaic panels accumulate dust, bird droppings, and other contaminants on their surfaces, leading to decreased light transmittance. If not cleaned promptly, this reduces power generation efficiency, generates a heat plate effect, and can even cause localized overheating, resulting in burnout and eventual failure. Traditional maintenance involves manual cleaning, but this method is inefficient, costly, and difficult to implement, especially in large-scale PV power plants where cleaning is particularly time-consuming and labor-intensive. Utility Model Content

[0004] In view of this, the present invention provides a photovoltaic panel cleaning device to solve the problems of low efficiency and high cost when manually cleaning the surface of photovoltaic panels.

[0005] Specifically, the photovoltaic panel cleaning device provided by this utility model includes a control terminal, a detection mechanism, a transmission mechanism, and a cleaning mechanism. The detection mechanism includes a dirt detection component, the detection end of which faces the photovoltaic panel surface, and its electrical connection end is communicatively connected to the control terminal. The transmission mechanism includes a first driving component, the electrical connection end of which is communicatively connected to the control terminal. The cleaning mechanism includes a cleaning component installed above the photovoltaic panel. The cleaning component has a fixed end and a cleaning end. The fixed end is installed on the driving end of the first driving component, and the cleaning end is connected to the fixed end. The cleaning end acts on the photovoltaic panel surface, and the fixed end is used to drive the cleaning end to reciprocate on the photovoltaic panel surface under the action of the driving end of the first driving component.

[0006] Beneficial effects: By setting up a dirt detection component, the surface of the photovoltaic panel can be monitored in real time. When dirt is detected, a corresponding signal is generated and transmitted to the control terminal. The control terminal generates a drive signal and transmits it to the first drive component, causing its drive end to move. By connecting the fixed end of the cleaning component to the drive end of the first drive component, the movement of the drive end can drive the cleaning component to move. Since the cleaning end and the fixed end are moving, the cleaning end can move on the surface of the photovoltaic panel. The cleaning end can clean the dirt on the surface of the photovoltaic panel by reciprocating. This achieves continuous and efficient cleaning operation. Compared with manual cleaning, the photovoltaic panel cleaning device of this structure can achieve mechanized and automated cleaning, reduce reliance on manpower, greatly improve cleaning efficiency, and reduce operation and maintenance costs.

[0007] In one optional embodiment, the photovoltaic panel cleaning device further includes a guiding mechanism, which includes a guide rail mounted on the side of the photovoltaic panel. The side of the guide rail is provided with a first groove and a second groove, which are arranged in parallel and both penetrate through two ends of the guide rail along its length. The transmission mechanism further includes a first pulley, a second pulley, and a transmission belt. The first pulley is rotatably mounted on the driving end of the first driving member and is located outside one end of the guide rail along its length. The second pulley is rotatably mounted outside the other end of the guide rail along its length. The transmission belt has a wraparound structure, comprising a first arc segment, a first straight segment, a second arc segment, and a second straight segment connected in sequence. The first arc segment and the second arc segment are respectively sleeved on the first pulley and the second pulley. The first straight segment and the second straight segment are respectively located within the first groove and the second groove, and one of the first straight segment and the second straight segment is connected to the fixed end of the cleaning member.

[0008] In one optional embodiment, the photovoltaic panel cleaning device further includes a support mechanism, which includes a support wheel assembly and a first connecting plate. The support wheel assembly is rotatably mounted on the guide rail. The first connecting plate has a connecting section and a supporting section connected to each other. The connecting section is mounted on the guide rail and is located on the side of the guide rail away from the photovoltaic panel. The connecting section is used to fix the support wheel assembly. The supporting section is connected to the connecting section and is located above the photovoltaic panel to support the cleaning component.

[0009] In one optional embodiment, the guide rail is further provided with a first support groove and a second support groove, the first support groove and the second support groove are arranged in parallel, the first support groove and the second support groove are respectively located at the top and bottom of the guide rail, and the first support groove and the second support groove are both arranged along the length direction of the guide rail; the support wheel assembly is provided with two rows of support wheels, the two rows of support wheels are respectively rotatably installed in the first support groove and the second support groove; the connecting section is used to fix the two rows of support wheels.

[0010] In one optional embodiment, the support mechanism further includes a support rod, which is horizontally mounted above the support section; the cleaning mechanism further includes a fixing frame, which is connected to the support rod, and the fixing frame encloses an installation chamber with at least an opening at the bottom. The fixing end of the cleaning component is fixedly mounted to the fixing frame, and the cleaning end of the cleaning component extends toward the surface of the photovoltaic panel through the bottom opening of the installation chamber.

[0011] In one optional embodiment, the fixed end of the cleaning component is a roller body, which is rotatably installed in the mounting cavity; the cleaning end of the cleaning component is a cleaning brush assembly, which is installed on the outer wall of the roller body; the support mechanism further includes a second connecting plate, which is installed on the fixed frame; the transmission mechanism further includes a second driving component, the fixed end of which is installed on the second connecting plate, the driving end of which is connected to the roller body in a transmission manner, and the electrical connection end of which is connected to the control terminal in a communication manner.

[0012] In one alternative embodiment, a plurality of cleaning brush assemblies are provided, and the plurality of cleaning brush assemblies are arranged circumferentially around the central axis of the roller body, each cleaning brush assembly including a plurality of cleaning brushes arranged axially at intervals along the central axis of the roller body.

[0013] In one optional embodiment, the photovoltaic panel cleaning device further includes a pressure regulating mechanism, which includes an electric telescopic component. The fixed end of the electric telescopic component is installed on the support rod, the telescopic end of the electric telescopic component is connected to the fixed frame, and the electrical connection end of the electric telescopic component is communicatively connected to a control terminal.

[0014] In one optional embodiment, the cleaning mechanism further includes a spraying component mounted on the fixed frame. The spraying component is connected to the storage chamber of the storage tank via a liquid supply hose, and the spray holes of the spraying component face the surface of the photovoltaic panel.

[0015] In one alternative embodiment, a filter is installed inside the liquid storage tank. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 A perspective view of the photovoltaic panel cleaning device provided in an embodiment of this utility model;

[0018] Figure 2 A front view of the photovoltaic panel cleaning device provided in this embodiment of the present invention, showing the first driving component, the first pulley, and the second pulley installed on the guide rail.

[0019] Figure 3 A top view of the transmission belt in the photovoltaic panel cleaning device provided in this embodiment of the utility model;

[0020] Figure 4 A perspective view of the photovoltaic panel cleaning device provided in this embodiment of the present invention after the fixed frame and support rod have been separated;

[0021] Figure 5 A front view of the cleaning component in the photovoltaic panel cleaning device provided in this embodiment of the utility model;

[0022] Figure 6 A cross-sectional view of the support wheel and the first connecting plate installed on the guide rail in the photovoltaic panel cleaning device provided in this embodiment of the utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Testing agency; 11. Dirt testing equipment;

[0025] 2. Transmission mechanism; 21. First driving component; 22. First pulley; 23. Second pulley; 24. Transmission belt; 241. First arc segment; 242. First straight segment; 243. Second arc segment; 244. Second straight segment; 25. Second driving component;

[0026] 3. Cleaning mechanism; 31. Cleaning components; 311. Roller body; 312. Cleaning brush; 313. Rotating shaft; 32. Spraying components;

[0027] 4. Guiding mechanism; 41. Guide rail; 411. First slide groove; 412. Second slide groove; 413. First support groove; 414. Second support groove;

[0028] 5. Support mechanism; 51. Support wheel; 52. First connecting plate; 521. Connecting section; 522. Support section; 53. Support rod; 54. Fixed frame; 541. Mounting chamber; 55. Second connecting plate;

[0029] a. Photovoltaic panels. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] The following is combined with Figures 1 to 6 The following describes embodiments of the present invention.

[0032] According to embodiments of the present invention, such as Figure 1 As shown, a photovoltaic panel cleaning device is provided, including a control terminal (not shown), a detection mechanism 1, a transmission mechanism 2, and a cleaning mechanism 3.

[0033] Among them, such as Figures 1 to 4 As shown, the detection mechanism 1 includes a dirt detection element 11, the detection end of which faces the surface of the photovoltaic panel a, and the electrical connection end of the dirt detection element 11 is communicatively connected to the control terminal; the transmission mechanism 2 includes a first driving element 21, the electrical connection end of which is communicatively connected to the control terminal; the cleaning mechanism 3 includes a cleaning element 31, which is installed above the photovoltaic panel a. The cleaning element 31 has a fixed end and a cleaning end. The fixed end is installed on the driving end of the first driving element 21, and the cleaning end is connected to the fixed end. The cleaning end acts on the surface of the photovoltaic panel, and the fixed end is used to drive the cleaning end to reciprocate on the surface of the photovoltaic panel a under the action of the driving end of the first driving element 21.

[0034] With this configuration, the surface of photovoltaic panel a can be monitored in real time by setting up the dirt detection component 11. When dirt is detected, a corresponding signal is generated and transmitted to the control terminal. The control terminal generates a drive signal and transmits it to the first drive component 21, causing its drive end to move. By connecting the fixed end of the cleaning component 31 to the drive end of the first drive component 21, the movement of the drive end can drive the cleaning component 31 to move. Since the cleaning end and the fixed end are moving, the cleaning end can move on the surface of photovoltaic panel a. The cleaning end can complete the cleaning action on the surface of photovoltaic panel a by reciprocating on the surface of photovoltaic panel a, realizing continuous and efficient cleaning operation. Compared with manual cleaning, the photovoltaic panel cleaning device of this structure can realize mechanized and automated cleaning, reduce the dependence on manpower, greatly improve cleaning efficiency, and reduce operation and maintenance costs.

[0035] Preferably, the moving direction of the cleaning component 31 is the length direction of the photovoltaic panel a.

[0036] It can be explained that the control terminal is developed based on a microcontroller (such as STM32 or Arduino), receives and analyzes signals from sensors, and automatically starts or stops cleaning and spraying actions according to preset dust thresholds.

[0037] Furthermore, the control terminal has a timed cleaning mode, which allows you to set the cleaning cycle as needed to achieve automated operation.

[0038] Furthermore, a remote monitoring module is also provided, which allows users to remotely monitor the device's operating status and receive notifications of cleaning completion or fault alarms via Wi-Fi or 4G.

[0039] It should be noted that the photovoltaic panel cleaning device also includes a power module to provide power for the entire device. This includes a photovoltaic power supply unit and a backup power supply unit. The photovoltaic power supply unit utilizes the electricity generated by the photovoltaic panels themselves, while the backup power supply unit uses lithium batteries or supercapacitors to provide power support when sunlight is insufficient or at night.

[0040] Furthermore, the photovoltaic power supply unit has a built-in DC-DC conversion module to supply power to the device, using the electrical energy generated by photovoltaic panel a for its own power consumption.

[0041] It can be noted that the dirt detection component 11 is an infrared sensor, which uses infrared light to measure the attenuation of transmitted light by dirt. The thicker the dust, the lower the transmittance.

[0042] Furthermore, the control terminal determines whether to initiate cleaning based on the real-time results fed back by the dirt detection device 11.

[0043] For example, when the detected dust thickness is greater than a preset threshold, a cleaning signal is generated and transmitted to the first driving component 21, causing the first driving component 21 to drive the cleaning component 31 to reciprocate on the surface of the photovoltaic panel a.

[0044] Furthermore, in the moving direction of the cleaning component 31, limit switches are provided at both ends of the photovoltaic panel a, and each limit switch is connected to the control terminal. A toggle component is provided to move synchronously with the cleaning component 31. When the toggle component triggers the limit switch, the control terminal generates a reversing signal and transmits it to the first drive component 21, so that the drive end of the first drive component 21 changes the rotation direction, thereby realizing reciprocating motion.

[0045] It should be noted that, since there are various types of dirt, such as dust and bird droppings, the dirt detection component 11 can also be a multispectral sensor. The principle is that different dirt has different absorption and reflection characteristics for different wavelengths, thereby distinguishing the type of pollutant. Since this method is relatively conventional, it will not be elaborated here.

[0046] In one embodiment, such as Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, the photovoltaic panel cleaning device also includes a guiding mechanism 4, which includes a guide rail 41. The guide rail 41 is installed on the side of the photovoltaic panel a. The side of the guide rail 41 is provided with a first groove 411 and a second groove 412. The first groove 411 and the second groove 412 are arranged in parallel, and both the first groove 411 and the second groove 412 pass through the two ends of the guide rail 41 along its length direction. The transmission mechanism 2 also includes a first pulley 22, a second pulley 23 and a transmission belt 24.

[0047] The first pulley 22 is rotatably mounted on the driving end of the first driving member 21, and the first pulley 22 is located outside one end of the guide rail 41 along its length direction; the second pulley 23 is rotatably mounted outside the other end of the guide rail 41 along its length direction; the transmission belt 24 has a loop structure, and the transmission belt 24 includes a first arc segment 241, a first straight segment 242, a second arc segment 243, and a second straight segment 244 connected in sequence. The first arc segment 241 and the second arc segment 243 are respectively sleeved outside the first pulley 22 and the second pulley 23, and the first straight segment 242 and the second straight segment 244 are respectively located in the first groove 411 and the second groove 412. One of the first straight segment 242 and the second straight segment 244 is connected to the fixed end of the cleaning member 31.

[0048] With this configuration, by installing the guide rail 41 on the side of the photovoltaic panel a, and having the first groove 411 and the second groove 412 arranged in parallel and passing through both ends of the guide rail 41, a stable moving path is provided for the transmission belt 24, ensuring that the cleaning mechanism 3 makes linear reciprocating motion along the surface of the photovoltaic panel a, and preventing the transmission belt 24 from deviating or getting stuck during operation.

[0049] Meanwhile, the transmission belt 24 is composed of a first arc segment 241, a first straight segment 242, a second arc segment 243, and a second straight segment 244, which are respectively sleeved on the outside of the first pulley 22 and the second pulley 23. The first pulley 22 is rotatably connected to the driving end of the first driving member 21, and one of the first straight segment 242 and the second straight segment 244 is connected to the fixed end of the cleaning member 31. This realizes that the power of the first driving member 21 is transmitted to the fixed end of the cleaning member 31 through the straight segment in the groove, thereby driving the cleaning member 31 to move. It is suitable for occasions with a large cleaning range.

[0050] It can be noted that the transmission belt 24 is a GT2 belt.

[0051] In one embodiment, such as Figure 1 , Figure 4 and Figure 6As shown, the photovoltaic panel cleaning device also includes a support mechanism 5, which includes a support wheel assembly and a first connecting plate 52. The support wheel assembly is rotatably mounted on the guide rail 41. The first connecting plate 52 has a connecting section 521 and a support section 522 connected to each other. The connecting section 521 is mounted on the guide rail 41 and is located on the side of the guide rail 41 away from the photovoltaic panel a. The connecting section 521 is used to fix the support wheel assembly. The support section 522 is connected to the connecting section 521 and is located above the photovoltaic panel a to support the cleaning component 31.

[0052] With this configuration, the support section 522 of the first connecting plate 52 is positioned above the photovoltaic panel a to support the cleaning component 31. Furthermore, by connecting the support section 522 to the connecting section 521, and with the connecting section 521 installed on the guide rail 41 on the side of the guide rail 41 away from the photovoltaic panel a, the weight of the cleaning component 31 and the dynamic load generated during operation can be effectively transferred to the side of the guide rail 41, ensuring that the cleaning component 31 can stably contact the surface of the photovoltaic panel a during the cleaning process. Additionally, by installing the support wheel assembly on the connecting section 521 and allowing the support wheel assembly to roll on the guide rail 41, the support wheel assembly can share the dynamic load generated during the cleaning process.

[0053] In one embodiment, such as Figure 1 , Figure 2 and Figure 6 As shown, the guide rail 41 is also provided with a first support groove 413 and a second support groove 414. The first support groove 413 and the second support groove 414 are arranged in parallel. The first support groove 413 and the second support groove 414 are located at the top and bottom of the guide rail 41, respectively. The first support groove 413 and the second support groove 414 are both arranged along the length direction of the guide rail 41. The support wheel assembly is provided with two rows of support wheels 51. The two rows of support wheels 51 are respectively rolled and installed in the first support groove 413 and the second support groove 414. The connecting section 521 is used to fix the two rows of support wheels 51.

[0054] With this configuration, the first support groove 413 and the second support groove 414 at the top and bottom of the guide rail 41 are parallel and extend along the length direction to form a synchronous guide path. Then, the two rows of support wheels 51 are installed at the two support grooves respectively to form a vertical limit. That is, the two rows of support wheels 51 form a bidirectional limit in the vertical direction to prevent the cleaning mechanism 3 from deviating due to external forces (such as wind) during operation, and to ensure that the cleaning mechanism 3 can complete the cleaning work on the surface of the photovoltaic panel a along the preset cleaning posture.

[0055] It can be noted that the guide rail 41 is made of high-strength aluminum alloy and has been treated with anti-corrosion coating.

[0056] Furthermore, two guide rails 41 are provided, respectively located on the two sides of the photovoltaic panel a in the width direction. At this time, the other guide rail 41 is also provided with two rows of support wheels 51.

[0057] In one embodiment, such as Figure 1 and Figure 4 As shown, the support mechanism 5 also includes a support rod 53, which is horizontally installed above the support section; the cleaning mechanism 3 also includes a fixed frame 54, which is connected to the support rod 53. The fixed frame 54 encloses and forms an installation chamber 541 with at least an opening at the bottom. The fixed end of the cleaning component 31 is fixedly installed on the fixed frame 54, and the cleaning end of the cleaning component 31 extends toward the surface of the photovoltaic panel a through the bottom opening of the installation chamber 541.

[0058] This configuration, by placing the support rod 53 laterally above the support section to form a horizontal rigid beam structure, effectively resists the bending stress generated by the cleaning mechanism 3 during reciprocating motion, providing a stable support foundation for the cleaning mechanism 3.

[0059] The cleaning component 31 is fixed by using a fixed frame 54, and an installation chamber 541 is formed by enclosing the fixed frame 54. The cleaning end of the installed cleaning component 31 is directed toward the photovoltaic panel a through the bottom opening of the installation chamber 541, ensuring that the cleaning end can act on the surface of the photovoltaic panel a as it moves with the fixed frame 54 and the support rod 53.

[0060] In one embodiment, such as Figure 1 , Figure 4 and Figure 5 As shown, the fixed end of the cleaning component 31 is the roller body 311, which is rotatably installed in the installation chamber 541. The cleaning end of the cleaning component 31 is a cleaning brush assembly, which is installed on the outer wall of the roller body 311. The support mechanism 5 also includes a second connecting plate 55, which is installed on the fixed frame 54. The transmission mechanism 2 also includes a second driving component 25, the fixed end of which is installed on the second connecting plate 55. The driving end of the second driving component 25 is connected to the roller body 311 in a transmission manner, and the electrical connection end of the second driving component 25 is connected to the control terminal in a communication manner.

[0061] With this configuration, the second driving component 25 drives the cleaning brush assembly to perform rolling cleaning on the surface of the photovoltaic panel a. Compared with the traditional scraping cleaning method, the cleaning brush assembly does not need to continuously apply high pressure, which can reduce the friction between the brush bristles and the surface of the photovoltaic panel a, thereby reducing frictional wear and extending the life of the cleaning component.

[0062] It can be noted that the transmission mechanism 2 also includes an encoder, which is communicatively connected to the first drive component 21 and the second drive component 25 to precisely control the output power of each drive component and the position of the cleaning component 31.

[0063] It can be explained that the drive end of the second drive component 25 transmits power to the cleaning component 31 through a bevel gear set.

[0064] Specifically, the axially arranged end of the cleaning component 31 has a rotating shaft 313. The rotating shaft 313 passes through the second connecting plate 55 and is located below the driving end of the second driving component 25. A bevel gear is coaxially arranged on the rotating shaft 313, and another bevel gear is coaxially arranged on the driving end of the second driving component 25. The two bevel gears mesh to transmit power.

[0065] It can be explained that there are multiple cleaning brush sets, which are arranged circumferentially around the central axis of the roller body 311. Each cleaning brush set includes multiple cleaning brushes 312 arranged axially along the central axis of the roller body 311.

[0066] This configuration, by arranging multiple cleaning brush groups in a circumferentially spaced manner around the central axis of the roller body 311, allows for continuous rolling cleaning between the brush groups as the roller body 311 rotates. Furthermore, by arranging each brush group in a manner that involves multiple cleaning brushes 312 spaced along the axial direction, the width of the photovoltaic panel can be covered, reducing the number of reciprocating movements of the cleaning component 31 on the surface of the photovoltaic panel a and improving the cleaning effect.

[0067] Furthermore, the cleaning brush is made of a highly elastic and wear-resistant material.

[0068] For example, silicone or nylon bristles.

[0069] This setup ensures that the surface of the photovoltaic panels will not be scratched or damaged during the cleaning process.

[0070] It can be noted that the number of roller bodies 311 can be one, two or more.

[0071] During installation, the number of roller bodies 311 is determined according to the size of photovoltaic panel a. When the number of roller bodies 311 is at least two, the roller bodies 311 are axially spliced ​​together.

[0072] This configuration can accommodate the usage requirements of photovoltaic panels of different specifications.

[0073] It can be explained that the first drive motor and the second drive motor are stepper motors or servo motors, which can precisely control the moving speed of the cleaning component 31 on the surface of the photovoltaic panel a and the rotation speed of the roller body 311.

[0074] It can be noted that the photovoltaic panel cleaning device also includes a pressure regulating mechanism, which includes an electric telescopic component (not shown in the figure). The fixed end of the electric telescopic component is installed on the support rod 53, the telescopic end of the electric telescopic component is connected to the fixed frame 54, and the electrical connection end of the electric telescopic component is connected to the control terminal for communication.

[0075] With this setup, by adding an electric telescopic component, the telescopic end of which is connected to the fixed frame 54, the contact pressure of the cleaning brush 312 on the photovoltaic panel a can be precisely adjusted by controlling the telescopic length of the electric telescopic component. This prevents the cleaning effect of the solar panel from being unsatisfactory due to insufficient cleaning pressure, or the phenomenon of micro-cracks or surface scratches on the photovoltaic panel a due to excessive cleaning pressure, thus ensuring that the cleaning effect meets the requirements.

[0076] When in use, the dirt detection component 11 will generate different cleaning intensity signals when it detects different dirt thicknesses, and transmit them to the control terminal. The control terminal will generate different extension signals based on the different cleaning intensity thickness signals, and transmit them to the electric extension component to adjust the extension degree of the extension end in real time, thereby adjusting the distance between the cleaning component 31 and the photovoltaic panel a, and thus adjusting the cleaning force.

[0077] In one embodiment, such as Figure 1 and Figure 4 As shown, the cleaning mechanism 3 also includes a spray component 32, which is installed on the fixed frame 54. The spray component 32 is connected to the storage chamber of the storage tank through a liquid supply hose, and the spray holes of the spray component 32 face the surface of the photovoltaic panel a.

[0078] This configuration, with the addition of spray nozzle 32, enables a combined cleaning mode that combines rolling cleaning with spray rinsing. Specifically, during the rolling cleaning process, the cleaning brush assembly mechanically removes dirt from the surface of photovoltaic panel a, while the spray nozzle 32 sprays simultaneously, using liquid penetration and rinsing to flush away the loosened dirt from the surface of photovoltaic panel a, preventing the loose dirt from accumulating on the surface of photovoltaic panel a and thus affecting power generation efficiency.

[0079] The liquid storage chamber is used to fill the cleaning medium.

[0080] It can be explained that there are multiple spray elements 32, and the multiple spray elements 32 are arranged along the width direction and / or length direction of the photovoltaic panel a.

[0081] Preferably, the spray element 32 is selected as an atomizing nozzle.

[0082] This setup enables uniform spraying of the cleaning medium, covering a large area while using less water.

[0083] Furthermore, the cleaning mechanism 3 also includes a water pump, which is connected to the control terminal and can switch the start and stop states of the water pump according to the cleaning needs. The water pump provides the power for the movement of liquid in the storage tank.

[0084] For example, when the dirt detection device 11 detects dirt on the surface of photovoltaic panel a, the control terminal transmits a water pump supply signal, the water pump starts, and the cleaning medium in the storage tank moves to the spray device 32. When the dirt detection device 11 does not detect dirt on the surface of photovoltaic panel a, the control terminal transmits a water pump stop signal, the water pump goes into standby mode, and the medium in the storage tank stops moving.

[0085] It can be noted that the medium stored in the water pump can be water or an environmentally friendly cleaning agent.

[0086] It can be noted that the liquid storage tank is equipped with a filter, such as a filter screen.

[0087] This design, by installing a filter inside the liquid storage tank, can intercept impurities and prevent them from clogging the spray holes and affecting the spraying process.

[0088] Furthermore, the liquid storage tank is equipped with a detergent adding interface, allowing the addition of environmentally friendly detergent as needed.

[0089] It can be noted that the device is also equipped with a temperature and humidity sensor, which is connected to the control terminal to detect the environment and feed it back to the control terminal.

[0090] For example, when rain is detected, a water outage signal is generated and transmitted to the water pump to stop the water supply and use rainwater to assist in cleaning.

[0091] Furthermore, the device has a built-in fault detection module that can monitor the operating status of each component in real time. When an abnormality occurs (such as motor overload or nozzle blockage), it automatically sends an alarm signal and stops operation.

[0092] The photovoltaic panel cleaning device provided in the above embodiments is used in the following specific process:

[0093] Dirt Detection: The dirt detection component 11 monitors the dirt accumulation on the surface of the photovoltaic panel in real time and transmits the data to the control terminal; Cleaning Start: When the dirt accumulation reaches a preset threshold, the control terminal starts the first drive component 21, the second drive component 25, and the water pump; Cleaning Process: The roller body 311 moves along the guide rail 41 under the drive of the first drive component 21 and rotates circumferentially under the action of the second drive component 25. At the same time, the spray component 32 sprays cleaning medium to jointly remove dirt from the surface of the photovoltaic panel; Full Coverage Cleaning: When the first drive component 21 is working, it drives the cleaning component 31 to move back and forth along the surface of the photovoltaic panel to ensure full coverage cleaning; Cleaning Completion: After cleaning is completed, the control terminal sends a signal to shut down the first drive component 21, the second drive component 25, and the water pump, and enters sleep mode to wait for the next cleaning task.

[0094] The photovoltaic panel cleaning device provided in the above embodiments has a cleaning component 31 and a spraying component 32 that can work together to efficiently remove dirt from the surface of the photovoltaic panel and significantly improve power generation efficiency. At the same time, the sensor-based intelligent control system can automatically start cleaning according to the dust accumulation, reducing manual intervention. Furthermore, by using the photovoltaic panel's own electrical energy as a power source and combining it with a low-power design, energy saving and environmental protection are achieved.

[0095] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A photovoltaic panel cleaning device, characterized in that, include: Control terminal; The testing organization (1) includes a dirt detection device (11), the detection end of which faces the surface of the photovoltaic panel (a), and the electrical connection end of which is connected to the control terminal. The transmission mechanism (2) includes a first driving member (21), the electrical connection end of the first driving member (21) being communicatively connected to the control terminal; The cleaning mechanism (3) includes a cleaning component (31) installed above the photovoltaic panel (a). The cleaning component (31) has a fixed end and a cleaning end. The fixed end is installed on the driving end of the first driving component (21). The cleaning end is connected to the fixed end and acts on the surface of the photovoltaic panel. The fixed end is used to drive the cleaning end to reciprocate on the surface of the photovoltaic panel (a) under the action of the driving end of the first driving component (21).

2. The photovoltaic panel cleaning device according to claim 1, characterized in that, The photovoltaic panel cleaning device also includes a guiding mechanism (4), which comprises: A guide rail (41) is installed on the side of the photovoltaic panel (a). The side of the guide rail (41) is provided with a first groove (411) and a second groove (412). The first groove (411) and the second groove (412) are arranged in parallel, and both the first groove (411) and the second groove (412) pass through the two ends of the guide rail (41) along its length direction. The transmission mechanism (2) further includes: The first pulley (22) is rotatably mounted on the drive end of the first drive member (21), and the first pulley (22) is located outside one end of the guide rail (41) along its length direction; The second pulley (23) is rotatably mounted on the other end of the guide rail (41) along its length. The transmission belt (24) has a wraparound structure. The transmission belt (24) includes a first arc segment (241), a first straight segment (242), a second arc segment (243), and a second straight segment (244) connected in sequence. The first arc segment (241) and the second arc segment (243) are respectively sleeved on the outside of the first pulley (22) and the second pulley (23). The first straight segment (242) and the second straight segment (244) are respectively located in the first groove (411) and the second groove (412). One of the first straight segment (242) and the second straight segment (244) is connected to the fixed end of the cleaning member (31).

3. The photovoltaic panel cleaning device according to claim 2, characterized in that, The photovoltaic panel cleaning device further includes a support mechanism (5), which comprises: A support wheel assembly is rotatably mounted on the guide rail (41); The first connecting plate (52) is provided with a connecting section (521) and a supporting section (522) connected to each other. The connecting section (521) is installed on the guide rail (41) and the connecting section (521) is located on the side of the guide rail (41) away from the photovoltaic panel (a). The connecting section (521) is used to fix the supporting wheel assembly. The supporting section (522) is connected to the connecting section (521) and the supporting section (522) is located above the photovoltaic panel (a) and is used to support the cleaning component (31).

4. The photovoltaic panel cleaning device according to claim 3, characterized in that, The guide rail (41) is also provided with a first support groove (413) and a second support groove (414). The first support groove (413) and the second support groove (414) are arranged in parallel. The first support groove (413) and the second support groove (414) are located at the top and bottom of the guide rail (41), respectively. The first support groove (413) and the second support groove (414) are both arranged along the length direction of the guide rail (41). The support wheel assembly is provided with two rows of support wheels (51), and the two rows of support wheels (51) are respectively rolled in the first support groove (413) and the second support groove (414); The connecting section (521) is used to fix the two rows of support wheels (51).

5. The photovoltaic panel cleaning device according to claim 3 or 4, characterized in that, The support mechanism (5) further includes a support rod (53), which is horizontally installed above the support section; The cleaning mechanism (3) further includes a fixed frame (54), which is connected to the support rod (53). The fixed frame (54) encloses and forms an installation chamber (541) with at least an opening at the bottom. The fixed end of the cleaning component (31) is fixedly installed on the fixed frame (54), and the cleaning end of the cleaning component (31) extends toward the surface of the photovoltaic panel (a) through the bottom opening of the installation chamber (541).

6. The photovoltaic panel cleaning device according to claim 5, characterized in that, The fixed end of the cleaning component (31) is the roller body (311), which is rotatably installed in the installation chamber (541). The cleaning end of the cleaning component (31) is a cleaning brush assembly, which is installed on the outer wall of the roller body (311). The support mechanism (5) further includes a second connecting plate (55), which is mounted on the fixed frame (54); The transmission mechanism (2) further includes a second driving member (25), the fixed end of the second driving member (25) is mounted on the second connecting plate (55), the driving end of the second driving member (25) is connected to the roller body (311) in a transmission connection, and the electrical connection end of the second driving member (25) is connected to the control terminal in a communication connection.

7. The photovoltaic panel cleaning device according to claim 5, characterized in that, The cleaning brush set is provided in multiple ways, and the multiple cleaning brush sets are arranged circumferentially around the central axis of the roller body (311). Each cleaning brush set includes multiple cleaning brushes (312) arranged axially at intervals along the central axis of the roller body (311).

8. The photovoltaic panel cleaning device according to claim 5, characterized in that, The photovoltaic panel cleaning device also includes a pressure regulating mechanism, which comprises: The electric telescopic component has its fixed end installed on the support rod (53), its telescopic end connected to the fixed frame (54), and its electrical connection end connected to the control terminal.

9. The photovoltaic panel cleaning device according to claim 5, characterized in that, The cleaning mechanism (3) also includes: A spraying component (32) is installed on the fixed frame (54). The spraying component (32) is connected to the storage chamber of the storage tank through a liquid supply hose. The spraying holes of the spraying component (32) face the surface of the photovoltaic panel (a).

10. The photovoltaic panel cleaning device according to claim 9, characterized in that, The liquid storage tank is equipped with a filter.

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