A solar radiation table electric folding fan type dust accumulation and blowing cleaning device

Abstract

The application discloses a solar radiation table electric folding fan type anti-dust and blowing cleaning device, and relates to the technical field of new energy monitoring equipment and meteorological observation equipment, which comprises an anti-dust mechanism, wherein the anti-dust mechanism comprises a peripheral frame and a folding fan framework, and the peripheral frame is fixedly installed around the solar radiation table. The electric folding fan type anti-dust mechanism can automatically expand to form an arched protection space during sand, snowfall or non-measuring period, so that sand and snow can be prevented from directly adhering to the surface of the light-transmitting dome from the source, the deposition of pollutants is greatly reduced, the problem of low and distorted measurement data caused by the attenuation of light transmittance is effectively avoided, the accuracy of resource evaluation and power generation calculation is significantly improved, and the integrated blowing cleaning mechanism utilizes a hollow mounting shaft and an internal cavity flow channel of the fan bone to form a directional airflow, so that the surface of the light-transmitting dome can be fully blown and cleaned to remove residual dust and thin snow, manual regular scrubbing is replaced, and the manual maintenance cost of a photovoltaic power station in a remote area is reduced.

Description

Technical Field

[0001] This invention relates to the technical field of new energy monitoring equipment and meteorological observation equipment, specifically to an electric folding fan-shaped anti-dust accumulation and air-blowing cleaning device for solar radiation meters. Background Technology

[0002] Solar radiation meters are core monitoring equipment in photovoltaic power plants, solar energy resource observation stations, meteorological stations, and new energy test fields. They are used to continuously measure key parameters such as total solar radiation and diffuse radiation over long periods. The accuracy of their measurement data directly determines the scientific validity of photovoltaic power plant planning and design, power generation calculation, investment return assessment, and weather forecasting. They are an indispensable basic monitoring instrument in the new energy industry and meteorological field.

[0003] However, in long-term unattended outdoor applications in photovoltaic-rich areas, the existing protection and cleaning solutions for solar radiation meters mainly rely on manual periodic wiping. In these areas, photovoltaic power stations are scattered and transportation is inconvenient, resulting in high costs, long cycles, and untimely responses for manual maintenance. Dust and snow adhering to the surface of the light-transmitting dome will significantly reduce the light transmittance, leading to lower and distorted measurement data, which seriously affects the accuracy of resource assessment and power generation calculation. At the same time, the few existing simple dust removal devices only have a single passive air blowing dust removal function and lack active anti-dust and anti-snow accumulation design, which cannot reduce pollutant adhesion from the source. Moreover, the degree of automation is low, requiring manual triggering and operation, and cannot achieve unattended automatic operation. Some devices will also block the light-receiving surface of the radiation meter, further reducing the measurement accuracy. Summary of the Invention

[0004] This invention provides an electric folding fan-shaped anti-dust and air-blowing cleaning device for solar radiation meters to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A motorized folding fan-shaped anti-dust accumulation and air-blowing cleaning device for solar radiation meters includes: The anti-dust accumulation mechanism includes a peripheral frame and a folding fan frame. The peripheral frame is fixedly installed around the solar radiation meter, and the folding fan frame is fixedly installed on the top of the peripheral frame. An air-blowing cleaning mechanism includes a small air pump and an air-blowing channel. The small air pump is fixedly installed on the surface of the peripheral frame, and the air outlet of the small air pump is connected to the end of the air-blowing channel.

[0006] A further improvement of the technical solution of the present invention is that: the folding fan frame includes a fixing member, the bottom of the fixing member is fixedly connected to the top of the peripheral frame, and the fixing member is provided in two sets respectively disposed at both ends of the folding fan frame.

[0007] A further improvement of the technical solution of the present invention is that: the fixing component is internally fixedly connected to an installation shaft, the installation shaft is a hollow shaft, the surface of the installation shaft is rotatably connected to a supporting fan rib, the supporting fan ribs are stacked in seven sets, and the side of the innermost supporting fan rib is fixedly connected to the top of the surrounding frame.

[0008] A further improvement of the technical solution of the present invention is that: an arc-shaped sliding groove is provided on the surface of the supporting fan rib, and a linkage slider is fixedly connected to the inner wall of the supporting fan rib, and the linkage slider on the inner wall of the outer supporting fan rib is slidably connected to the arc-shaped sliding groove on the surface of the inner supporting fan rib.

[0009] A further improvement of the technical solution of the present invention is that: the maximum sliding angle of the linkage slider around the mounting shaft in the arc-shaped groove is 30°, and a light-transmitting protective cover is provided between adjacent supporting fan ribs.

[0010] A further improvement of the technical solution of the present invention is that the folding fan frame also includes a drive motor, the output end of which is coaxially arranged with the mounting shaft and fixedly connected to the surface of the outermost supporting fan rib.

[0011] A further improvement of the technical solution of the present invention is that: the air blowing channel includes a rubber tube whose end is connected to the air outlet of a small air pump, a connecting hole opened on the surface of the middle section of the mounting shaft, a cavity flow channel opened in the middle of the folding fan frame inside the supporting fan bone, and an air blowing hole opened on the surface of the supporting fan bone in the middle of the folding fan frame.

[0012] A further improvement of the technical solution of the present invention is that: the end of the rubber tube is connected to one end of the mounting shaft, and air enters the cavity flow channel through the connecting hole along the rubber tube, and is sprayed from the air blowing hole onto the surface of the light-transmitting spherical cover of the solar radiation meter and the surrounding area.

[0013] A further improvement of the technical solution of the present invention is that it also includes a control module, which comprises a main controller, a motor drive unit, an air pump drive unit, a timing module, and a position detection module; the main controller is electrically connected to the motor drive unit, the air pump drive unit, the timing module, and the position detection module respectively; the motor drive unit is electrically connected to a drive motor and is used to control the synchronous unfolding and closing of the folding fan frame; the air pump drive unit is electrically connected to a small air pump and is used to control the start, stop, and duration of air blowing cleaning; the position detection module is used to detect the unfolded and closed states of the folding fan frame; and the timing module is used to preset the opening and closing time of the protective cover and the air blowing cleaning cycle.

[0014] A further improvement of the technical solution of the present invention is that: the control module further includes a wireless communication module and a power supply module; the wireless communication module is electrically connected to the main controller and is used to receive instructions from a mobile phone APP, a remote monitoring platform or a local button to open, close, blow air for cleaning and modify timing parameters; the power supply module is one or more of a DC power input module, a battery module or a solar power supply module, providing working power for the control module, the drive motor and the small air pump.

[0015] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows: This invention provides an electrically operated folding fan-shaped anti-dust accumulation and air-blowing cleaning device for solar radiation meters. The electrically operated folding fan-shaped anti-dust accumulation mechanism automatically unfolds to form an arched protective space during sandstorms, snowfall, or non-measuring periods, preventing sand and snow from directly adhering to the surface of the light-transmitting dome. This significantly reduces pollutant deposition and effectively avoids the problem of low measurement data distortion caused by light transmittance attenuation, significantly improving the accuracy of resource assessment and power generation calculation. The integrated air-blowing cleaning mechanism utilizes the hollow mounting shaft and the internal cavity flow channel of the fan rib to form a directional airflow, which can comprehensively blow and clean the surface of the light-transmitting dome, removing residual floating dust and thin snow. This replaces manual periodic cleaning, reducing the manual maintenance costs of photovoltaic power stations in remote areas. The control module realizes automatic opening and closing of the protective cover and timed air-blowing cleaning without manual triggering, achieving unattended operation. Furthermore, when the protective cover is closed, it completely retracts to one side without any obstruction, ensuring no impact on the normal light collection and measurement accuracy of the solar radiation meter. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a bottom view of the folding fan frame structure of the present invention; Figure 3 This is a schematic diagram of the side structure of the folding fan frame of the present invention; Figure 4 This is a schematic diagram of the folding fan frame structure in its retracted state according to the present invention; Figure 5 This is a schematic diagram of the exploded structure of the folding fan frame of the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure of the middle fan bone of the present invention; Figure 7 For the present invention Figure 5 Enlarged structural diagram at point A in the middle; Figure 8 For the present invention Figure 6 Enlarged structural diagram at point B; Figure 9 This is a perspective structural diagram of the connection point of the middle fan rib of the present invention; Figure 10 This is a flowchart of the power control process of the present invention; Figure 11 This is a system control flowchart of the present invention.

[0017] In the diagram: 11. Peripheral frame; 12. Fixing component; 13. Mounting shaft; 14. Support fan rib; 15. Arc-shaped slide groove; 16. Linked slider; 17. Light-transmitting protective cover; 18. Drive motor; 21. Small air pump; 22. Rubber tube; 23. Connecting hole; 24. Cavity flow channel; 25. Air blowing hole; 3. Solar radiation meter. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to embodiments: Example 1, as Figures 1-4 As shown, the present invention provides an electric folding fan-type anti-dust accumulation and air-blowing cleaning device for a solar radiation meter, comprising: an anti-dust accumulation mechanism, which includes a peripheral frame 11 and a folding fan skeleton, the peripheral frame 11 being fixedly installed around the solar radiation meter 3, and the folding fan skeleton being fixedly installed on the top of the peripheral frame 11; and an air-blowing cleaning mechanism, which includes a small air pump 21 and an air-blowing channel, the small air pump 21 being fixedly installed on the surface of the peripheral frame 11, and the air outlet of the small air pump 21 being connected to the end of the air-blowing channel.

[0019] It should be noted that: the peripheral frame 11 provides rigid installation support for the entire device and defines the protection area of ​​the solar radiation meter; the solar radiation meter 3 is the core monitoring device to be protected and is used to measure the solar radiation intensity; the folding fan frame is used to support the light-transmitting protective cover and realize the switching between protection and measurement states; the small air pump 21 provides a high-pressure air source for air blowing and cleaning; the air blowing channel is used to guide the high-pressure airflow to the surface of the solar radiation meter.

[0020] In this embodiment, by integrating the anti-dust accumulation mechanism and the air blowing cleaning mechanism on the same peripheral frame, an integrated device that combines active protection and automatic cleaning is constructed, replacing the traditional single passive dust removal or purely manual maintenance solution. This lays a structural foundation for solving the problem of severe dust and snow accumulation and difficult maintenance of solar radiation meters in the photovoltaic-rich area of ​​Northwest China.

[0021] Example 2, as Figures 2-9As shown, based on Embodiment 1, the present invention provides a technical solution: Preferably, the folding fan frame includes a fixing member 12, the bottom of which is fixedly connected to the top of the peripheral frame 11. The fixing member 12 has two sets respectively disposed at both ends of the folding fan frame. An installation shaft 13 is fixedly connected inside the fixing member 12. The installation shaft 13 is a hollow shaft. Supporting fan ribs 14 are rotatably connected to the surface of the installation shaft 13. Seven sets of supporting fan ribs 14 are stacked. The side of the innermost supporting fan rib 14 is fixedly connected to the top of the peripheral frame 11. The surface of 4 is provided with an arc-shaped groove 15. The inner wall of the supporting fan rib 14 is fixedly connected with a linkage slider 16. The linkage slider 16 on the inner wall of the outer supporting fan rib 14 is slidably connected to the arc-shaped groove 15 on the surface of the inner supporting fan rib 14. The maximum sliding angle of the linkage slider 16 around the mounting shaft in the arc-shaped groove 15 is 30°. A light-transmitting protective cover 17 is provided between adjacent supporting fan ribs 14. The folding fan frame also includes a drive motor 18. The output end of the drive motor 18 is coaxially arranged with the mounting shaft 13 and is fixedly connected to the surface of the outermost supporting fan rib 14.

[0022] It should be noted that: the fastener 12 is used to fix the mounting shaft to the top of the peripheral frame; the mounting shaft 13 provides rotational support for the fan ribs and also serves as part of the airflow channel; the fan ribs 14 provide support for the light-transmitting protective cover, and the protective cover can be opened and closed by rotation; the arc-shaped slide 15 cooperates with the linkage slider 16 to realize the synchronous linkage of multiple sets of fan ribs; the light-transmitting protective cover 17 is made of high light transmittance weather-resistant PC material, which blocks sand and snow after opening, while ensuring a certain degree of light transmittance; the drive motor 18 is a low-power DC geared motor, which provides power for the opening and closing of the folding fan frame.

[0023] In this embodiment, the synchronous and smooth unfolding and retraction of the seven sets of supporting fan ribs is achieved through the linkage structure of the arc-shaped sliding groove and the linkage slider. Only one drive motor is needed to drive the movement of all fan ribs, making the structure simple and reliable. After unfolding, an arched protective space is formed, which blocks sand and snow from directly adhering to the surface of the light-transmitting sphere. After closing, all fan ribs are completely retracted to one side of the surrounding frame, and there is no obstruction above the solar radiation meter, avoiding the problem of traditional devices blocking the light-receiving surface and affecting the measurement accuracy.

[0024] Example 3, as Figures 1-9As shown, based on Embodiment 1, the present invention provides a technical solution: Preferably, the airflow channel includes a rubber tube 22 whose end is connected to the air outlet of a small air pump 21, a connecting hole 23 opened on the surface of the middle section of the mounting shaft 13, a cavity flow channel 24 opened inside the supporting fan rib 14 in the middle of the folding fan frame, and an air blowing hole 25 opened on the surface of the supporting fan rib 14 in the middle of the folding fan frame. The end of the rubber tube 22 is connected to one end of the mounting shaft 13. Air enters the cavity flow channel 24 through the connecting hole 23 along the rubber tube 22, and is sprayed from the air blowing hole 25 onto the surface of the light-transmitting spherical cover of the solar radiation meter 3 and its surrounding area.

[0025] It should be noted that: rubber tube 22 is used to connect the small air pump to the hollow mounting shaft to transmit high-pressure air; connecting hole 23 is used to guide the air in the mounting shaft into the cavity flow channel of the supporting fan rib; cavity flow channel 24 utilizes the internal space of the supporting fan rib to form an airflow channel, eliminating the need for additional pipe laying; blowing holes 25 are evenly distributed along the length of the supporting fan rib, with a hole diameter of 0.8mm, forming multiple directional airflows to cover the entire surface of the light-transmitting dome.

[0026] In this embodiment, by integrating the airflow channel into the hollow mounting shaft and the supporting fan rib, concealed airflow transmission is achieved, making the overall structure of the device more compact and aesthetically pleasing. At the same time, it reduces the problems of exposed pipes being prone to aging and dust accumulation. Multiple sets of evenly distributed air holes form a full-coverage airflow field, which can perform 360° cleaning of the surface of the light-transmitting spherical cover without dead angles, effectively removing residual floating dust and thin snow. The cleaning effect is significantly better than that of traditional single-point air blowing devices.

[0027] Example 4, as shown in Figure 10, provides a technical solution based on Example 1: preferably, it further includes a control module, which includes a main controller, a motor drive unit, an air pump drive unit, a timing module, and a position detection module; the main controller is electrically connected to the motor drive unit, the air pump drive unit, the timing module, and the position detection module respectively; the motor drive unit is electrically connected to the drive motor 18 and is used to control the synchronous unfolding and closing of the folding fan frame; the air pump drive unit is electrically connected to the small air pump 21 and is used to control the start, stop, and duration of the air blowing cleaning; the position detection module is used to detect the unfolded and closed states of the folding fan frame; the timing module is used to preset the opening and closing time of the protective cover and the air blowing cleaning cycle.

[0028] It should be noted that: the main controller uses an STMicroelectronics STM32F103C8T6 industrial-grade microcontroller with an operating frequency of 72MHz, built-in 64KB Flash and 20KB RAM, responsible for all signal processing and logic control; the motor drive unit uses an L298N dual H-bridge driver chip with built-in overcurrent and overheat protection circuits, which can accurately control the forward and reverse rotation and speed of the drive motor, and the output current can reach 2A; the air pump drive unit uses an Omron G5Q-14DC12V relay module, combined with an optocoupler isolation circuit, to achieve strong and weak current separation and protect the control circuit from the impact of air pump start-up and shutdown; the position detection module uses two A3144E Hall sensors, which are non-contact detections with no mechanical wear, and are installed at the expansion limit point and closure limit point of the peripheral frame respectively; the timing module uses a DS3231 high-precision RTC real-time clock chip with a timing accuracy of ±2ppm / year, and a built-in button battery that can maintain timing for more than 5 years without power, supporting up to 16 independent timing tasks.

[0029] In this embodiment, a modular, industrial-grade electrical control system enables fully automated closed-loop operation of the device, eliminating the need for manual intervention. The timing module can flexibly set opening and closing strategies based on sunrise and sunset times in different seasons, minimizing the impact on effective measurement time. The position detection module provides real-time feedback on the protective cover's position; if the motor runs for more than 10 seconds without detecting a positioning signal, the main controller immediately cuts off the motor power and records a fault code, effectively preventing motor stall and burnout. The system supports intelligent linkage control, which can be preset to automatically perform 30 seconds of air blowing cleaning after each protective cover closure, ensuring the surface of the light-transmitting sphere is clean before each measurement, completely solving the pain points of traditional devices with low automation and the need for manual triggering of cleaning.

[0030] Example 5, as shown in 11, provides a technical solution based on Example 1: Preferably, the control module further includes a wireless communication module and a power supply module; the wireless communication module is electrically connected to the main controller and is used to receive instructions from a mobile APP, remote monitoring platform or local button to open, close, blow air cleaning and modify timing parameters; the power supply module is one or more combinations of a DC power input module, a battery module or a solar power supply module, to provide working power for the control module, drive motor 18 and small air pump 21.

[0031] It should be noted that: the wireless communication module adopts the Quectel EC200S-CN4G full-network module, supports the LTE Cat1 standard, and has a built-in TCP / IP protocol stack to realize bidirectional data communication between the device and the cloud; it is also equipped with an HC-05 Bluetooth module for local debugging and parameter configuration in environments without network coverage; the mobile APP is developed based on both Android and iOS platforms, and has functions such as real-time status monitoring, remote manual control, visual editing of scheduled tasks, fault alarm push, and historical data export; the remote monitoring platform adopts a B / S architecture deployed on Alibaba Cloud server, supporting batch management of multiple devices, data statistical analysis, and report generation; the power module adopts a multi-power fusion design of 12V DC input, 12V / 20Ah lithium iron phosphate battery and 15W monocrystalline silicon solar panel, with a built-in MPPT charge and discharge controller, and has overcharge, over-discharge, overcurrent, short circuit and reverse connection protection functions.

[0032] In this embodiment, remote unattended management of the equipment is achieved through 4G wireless communication technology. Maintenance personnel can complete all operations via a mobile app or remote monitoring platform without having to drive to remote photovoltaic power stations, reducing the annual maintenance cost of a single device by more than 80% and shortening fault response time from several days to minutes. The multi-power supply integration design automatically switches power supply modes, prioritizing mains power and charging the lithium battery when available, and seamlessly switching to lithium battery power when mains power is interrupted. The solar panels can continuously replenish energy under sunlight conditions, supporting continuous operation for more than 15 days on a full charge, completely solving the power supply problem in areas of Northwest China without mains power access. The system supports OTA remote firmware upgrades, allowing control programs to be updated without disassembling the equipment, continuously optimizing operating strategies. A comprehensive fault alarm mechanism can push real-time abnormal information such as motor jamming, air pump failure, and power undervoltage, ensuring long-term stable and high-precision operation of the solar radiation meter.

[0033] The working principle of the electric folding fan-shaped anti-dust accumulation and air-blowing cleaning device for the solar radiation meter will be explained in detail below.

[0034] like Figures 1-11 As shown, Daily automatic operation mode The system operates according to the timetable preset by the timing module by default. During non-measurement periods (such as nighttime, sandstorm warning periods, and snowfall periods), the main controller controls the drive motor 18 to rotate forward via the motor drive unit, causing the outermost support fan rib 14 to rotate around the mounting shaft 13. Under the linkage of the connecting slider 16 and the arc-shaped slide groove 15, the remaining six sets of support fan ribs unfold outward in sequence, causing the light-transmitting protective cover 17 to open and form an arched protective space, preventing sand and snow from falling directly onto the surface of the light-transmitting spherical cover of the solar radiation meter 3. When the position detection module detects the unfolding signal, the main controller stops the drive motor 18, and the protective cover remains in a protective state.

[0035] Before the preset measurement period begins (e.g., 30 minutes before sunrise), the main controller starts the small air pump 21 via the air pump drive unit. High-pressure air enters the hollow mounting shaft 13 through the rubber tube 22, then enters the cavity flow channel 24 of the middle support fan rib through the connecting hole 23, and finally is ejected from the blowing holes 25 evenly distributed along the length direction, thoroughly blowing the surface of the light-transmitting dome for 30 seconds. Subsequently, the main controller controls the drive motor 18 to reverse, causing all the support fan ribs to retract to one side in sequence. When the position detection module detects the closed position signal, the main controller stops the motor. At this time, the solar radiation meter 3 is completely unobstructed and enters the normal measurement state.

[0036] Remote control mode Maintenance personnel can send real-time commands to the equipment via a mobile app or remote monitoring platform. Upon receiving an unfold command, the main controller immediately controls the drive motor 18 to rotate forward to unfold the protective cover; upon receiving a close command, it controls the drive motor 18 to rotate in reverse to retract the protective cover; upon receiving a cleaning command, it starts the small air pump 21 to execute the air blowing and cleaning program. Simultaneously, maintenance personnel can remotely modify timing parameters, for example, by setting the protective cover to be unfolded all day and increasing the air blowing and cleaning frequency when the meteorological department issues a sandstorm warning, in order to cope with severe weather.

[0037] Exception handling mechanism If the drive motor 18 runs for more than 10 seconds without receiving a position signal from the position detection module, the main controller determines that the mechanism is stuck, immediately cuts off the motor power, and sends a fault alarm message to the mobile APP and remote monitoring platform via the wireless communication module. When the power module detects that the battery voltage is lower than 10.5V, it sends an undervoltage alarm to remind maintenance personnel to perform timely maintenance and ensure long-term stable operation of the equipment.

[0038] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A motorized folding fan-shaped anti-dust accumulation and air-blowing cleaning device for a solar radiation meter, characterized in that: include: The anti-dust accumulation mechanism includes a peripheral frame (11) and a folding fan frame. The peripheral frame (11) is fixedly installed around the solar radiation meter (3), and the folding fan frame is fixedly installed on the top of the peripheral frame (11). The air-blowing cleaning mechanism includes a small air pump (21) and an air-blowing channel. The small air pump (21) is fixedly installed on the surface of the peripheral frame (11), and the air outlet of the small air pump (21) is connected to the end of the air-blowing channel.

2. The electric folding fan-type anti-dust accumulation and air-blowing cleaning device for a solar radiation meter according to claim 1, characterized in that: The folding fan frame includes a fixing member (12), the bottom of which is fixedly connected to the top of the peripheral frame (11), and the fixing member (12) has two sets respectively set at both ends of the folding fan frame.

3. The electric folding fan-type anti-dust accumulation and air-blowing cleaning device for a solar radiation meter according to claim 2, characterized in that: The fixing member (12) is internally fixedly connected to an installation shaft (13), which is a hollow shaft. The surface of the installation shaft (13) is rotatably connected to a supporting fan rib (14). The supporting fan rib (14) is stacked in seven sets, and the side of the innermost supporting fan rib (14) is fixedly connected to the top of the surrounding frame (11).

4. The electric folding fan-type anti-dust accumulation and air-blowing cleaning device for a solar radiation meter according to claim 3, characterized in that: The surface of the supporting fan rib (14) is provided with an arc-shaped sliding groove (15), and the inner wall of the supporting fan rib (14) is fixedly connected with a linkage slider (16). The linkage slider (16) on the inner wall of the outer supporting fan rib (14) is slidably connected to the arc-shaped sliding groove (15) on the surface of the inner supporting fan rib (14).

5. The electric folding fan-type anti-dust accumulation and air-blowing cleaning device for a solar radiation meter according to claim 4, characterized in that: The maximum sliding angle of the linkage slider (16) around the mounting shaft in the arc-shaped groove (15) is 30°, and a light-transmitting protective cover (17) is provided between adjacent support fan bones (14).

6. The electric folding fan-type anti-dust accumulation and air-blowing cleaning device for a solar radiation meter according to claim 5, characterized in that: The folding fan frame also includes a drive motor (18), the output end of which is coaxially arranged with the mounting shaft (13) and fixedly connected to the surface of the outermost supporting fan rib (14).

7. The electric folding fan-type anti-dust accumulation and air-blowing cleaning device for a solar radiation meter according to claim 1, characterized in that: The airflow channel includes a rubber tube (22) whose end is connected to the air outlet of a small air pump (21), a connecting hole (23) opened on the surface of the middle section of the mounting shaft (13), a cavity flow channel (24) opened inside the supporting fan bone (14) in the middle of the folding fan frame, and an air blowing hole (25) opened on the surface of the supporting fan bone (14) in the middle of the folding fan frame.

8. The electric folding fan-type anti-dust accumulation and air-blowing cleaning device for a solar radiation meter according to claim 7, characterized in that: The end of the rubber tube (22) is connected to one end of the mounting shaft (13). Air enters the cavity flow channel (24) through the connecting hole (23) along the rubber tube (22) and is sprayed from the air blowing hole (25) onto the surface of the light-transmitting sphere of the solar radiation meter (3) and the surrounding area.

9. The electric folding fan-type anti-dust accumulation and air-blowing cleaning device for a solar radiation meter according to claim 1, characterized in that: It also includes a control module, which includes a main controller, a motor drive unit, an air pump drive unit, a timing module, and a position detection module; the main controller is electrically connected to the motor drive unit, the air pump drive unit, the timing module, and the position detection module respectively; the motor drive unit is electrically connected to the drive motor (18) and is used to control the synchronous unfolding and synchronous closing of the folding fan frame; the air pump drive unit is electrically connected to the small air pump (21) and is used to control the start, stop, and duration of the air blowing cleaning. The position detection module is used to detect the unfolded and closed states of the folding fan frame; the timing module is used to preset the opening and closing time of the protective cover and the air blowing and cleaning cycle.

10. The electric folding fan-type anti-dust accumulation and air-blowing cleaning device for a solar radiation meter according to claim 9, characterized in that: The control module also includes a wireless communication module and a power supply module; the wireless communication module is electrically connected to the main controller and is used to receive instructions from the mobile APP, remote monitoring platform or local button to open, close, blow clean and modify timing parameters; the power supply module is one or more of a DC power input module, a battery module or a solar power supply module, to provide working power for the control module, drive motor (18) and small air pump (21).

Images