Solar cell supporting assembly

Abstract

The invention discloses a solar cell supporting assembly which comprises a supporting frame set, a photovoltaic assembly, a frame body, a wind power cleaning assembly and a wind wing plate. One end of the frame body is rotationally installed on the surface of the supporting frame set, and an inclination angle control rod movably connected with the other end of the frame body is arranged on the surface of the supporting frame set. A plurality of flexible supporting pieces and a plurality of high-frequency vibration assemblies are fixedly installed on the surface of the frame body. According to the invention, the wing-shaped wind plate and the flow guide flat plate are arranged on the surface of the supporting assembly, and an acceleration air channel is formed by using the Bernoulli principle and the narrow tube effect, so that the flow speed of airflow close to the surface of the photovoltaic assembly is remarkably improved, and passive dust cleaning and dust deposition prevention on the surface of the photovoltaic panel can be realized under the condition of natural wind; and the cleanliness and the power generation efficiency of the photovoltaic module are improved.

Description

Technical Field

[0001] This invention relates to the field of solar energy technology, specifically to a solar cell support assembly. Background Technology

[0002] Solar photovoltaic (PV) power generation, as a green and clean energy source, has been widely used in large-scale PV power plants, building rooftops, and distributed energy systems. PV modules are typically installed on support frames at an angle or horizontally to maximize sunlight absorption and achieve efficient power generation. However, because PV power plants are often deployed in areas with frequent sandstorms or heavy dust, dust easily accumulates on the surface of the PV modules, leading to decreased light transmittance and consequently a significant reduction in power generation efficiency.

[0003] Currently, photovoltaic module surface cleaning technologies mainly include the following categories: Manual or mechanical cleaning methods: Dust on the module surface is cleaned through manual wiping, roller brush cleaning, or mobile cleaning robots. While these methods can remove some dust, they have long cleaning cycles, high labor costs, and low efficiency in large-scale photovoltaic power plants, making it difficult to achieve 24 / 7 automated maintenance. Water spraying or rainwater rinsing methods: Dust on the module surface is washed away using spray devices or natural rainfall. This method relies on water resources or climate conditions, making it difficult to guarantee long-term cleaning effectiveness in arid or windy environments. Furthermore, water washing may increase the risk of surface calcification, water spots, and surface damage. Static dustproof coatings and anti-fouling technologies: Some photovoltaic modules use low surface energy coatings or superhydrophobic coatings to reduce dust adhesion. However, when the ambient wind speed is low or there is a prolonged lack of rainfall, static dustproof coatings still cannot prevent dust accumulation, and dust particles easily form a firmly adhering layer under electrostatic effects.

[0004] The existing technology has the following shortcomings: Existing cleaning methods are mostly passive or manual, with low automation and limited cleaning efficiency, making them difficult to cope with environments with frequent sandstorms. Traditional static support frame structures cannot effectively change the airflow distribution on the surface of components, making it difficult to use natural wind for dust prevention or passive cleaning. Existing vibration cleaning solutions mostly involve overall or irregular vibration, which can easily cause dust to fall back or be stirred up again, affecting the long-term cleaning effect of photovoltaic modules. While dustproof coatings can reduce dust adhesion, they lack synergy with active cleaning and airflow dust prevention, resulting in limited overall dustproof capabilities.

[0005] Therefore, there is an urgent need for a new type of solar cell support module that can combine airflow optimization, group vibration cleaning, and surface dustproof coating to achieve synergy between passive dust prevention and active cleaning of photovoltaic modules, improve long-term power generation efficiency, and reduce operation and maintenance costs. Summary of the Invention

[0006] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0007] Therefore, the technical solution adopted in this invention is as follows: a solar cell support assembly, comprising a support frame, a photovoltaic module, a frame body, a wind-driven cleaning assembly, and wind vanes. Through structural optimization and functional synergy, it achieves triple protection through accelerated airflow dust prevention, group vibration self-cleaning, and a surface dust-proof coating, thereby significantly improving the long-term operating performance of the photovoltaic module. The overall technical solution is as follows: The solar cell support assembly of the present invention includes a support frame assembly, a photovoltaic module, a frame body, a wind-powered cleaning assembly, and a wind vane. One end of the frame body is rotatably mounted to the support frame assembly, and the other end is guided and supported by an angle control rod. Several flexible support members and a high-frequency vibration assembly are installed on the surface of the frame body to support the photovoltaic module and perform grouped vibration cleaning. A controller is provided on the surface of the support frame assembly, and a sensor group is installed on the surface of the photovoltaic module to detect the ambient wind speed or dust concentration and perform adaptive control. A wind duct plate is fixed on the surface of the frame body, which is covered by the wind vane and forms a narrow wind duct with the inner side of the wind duct plate to achieve passive dust prevention using natural wind. The wind-powered cleaning assembly includes a blower and a wind turbine. The blower is located in the wind duct and is linked to the wind turbine through a universal coupling to accelerate the airflow in the wind duct and clean dust under the action of wind.

[0008] This overall structure achieves a synergistic effect of passive wind-driven dust prevention, active vibration cleaning, and surface dust-proof coating, effectively extending the cleaning cycle and service life of photovoltaic modules.

[0009] In a preferred example, several flexible supports and high-frequency vibration components are arranged alternately along the surface of the frame and divided into odd and even groups according to a diagonal straight line. The controller can control them to start sequentially and attenuate their amplitude in groups, so as to achieve the cleaning effect of dust being transferred step by step and avoiding secondary fall.

[0010] Specific technical effects: By using a grouped alternating vibration and graded attenuation strategy, dust is allowed to slide down the inclined support of the flexible support in sequence, thereby preventing dust from being suspended and redeposited on the surface of the photovoltaic module and improving cleaning efficiency.

[0011] In another preferred example, the controller uses a microcontroller or programmable logic device and outputs a high-voltage PWM signal through a multi-channel piezoelectric drive circuit to achieve independent control of the vibration frequency and amplitude of each high-frequency vibration component.

[0012] Specific technical effects: The cleaning mode can be dynamically adjusted according to wind speed and dust concentration, achieving a balance between energy-saving operation and efficient dust prevention.

[0013] In another preferred embodiment, the high-frequency vibration component includes a piezoelectric drive module disposed within the controller and a piezoelectric vibrator fixed to the surface of the frame. The piezoelectric vibrator is made of laminated piezoelectric ceramic or strip piezoelectric vibrator, with a vibration frequency of 80Hz to 300Hz, and resonates with the flexible support.

[0014] Specific technical effects: The resonant structure can significantly enhance the desorption capacity of dust particles and enable dust to be quickly transported to the lower edge of the component through step-by-step transfer.

[0015] In a preferred example, the controller controls the vibration intensity to decrease step by step according to a preset grouped alternating decay strategy, with the decay form being graded linear decay or exponential decay.

[0016] Specific technical effects: Avoids dust falling back the moment vibration stops, achieving a continuous and stable cleaning process.

[0017] In a preferred example, the sensor group includes a dust concentration detection sensor or a wind speed detection sensor, and the controller can automatically adjust the group's vibration period and decay time based on the detection data.

[0018] Specific technical effects: Implement adaptive cleaning logic based on environmental conditions, improving the system's intelligence level and energy efficiency.

[0019] In a preferred example, the flexible support is made of spring steel sheets or thermoplastic polyurethane (TPU) and is fixedly connected to the bottom surface of the photovoltaic module.

[0020] Specific technical effects: Ensures vibration transmission efficiency and avoids mechanical damage to photovoltaic modules, extending module lifespan.

[0021] In a preferred example, the duct plate has a planar surface that is flush with the top surface of the photovoltaic module, and the airfoil has an airfoil structure with a curved bottom surface to form a high-velocity airflow within the duct.

[0022] Specific technical effects: By utilizing the Bernoulli effect and the funnel effect, local wind speed is increased, achieving passive airflow dust prevention and dust removal.

[0023] In a preferred example, the surface of the photovoltaic module is provided with a hydrophobic or oleophobic low surface energy nano-dustproof coating.

[0024] Specific technical effects: Reduces the probability of dust adhesion, achieves long-lasting self-cleaning through airflow and vibration, and significantly reduces the frequency of manual maintenance.

[0025] The beneficial effects achieved by this invention are as follows: 1. In this invention, by setting airfoil-shaped wind vanes and guide plates on the surface of the support components, an accelerating airflow channel is formed by utilizing Bernoulli's principle and the septum effect, which significantly increases the airflow velocity near the surface of the photovoltaic modules. Under natural wind conditions, passive dust cleaning and dust deposition prevention can be achieved on the surface of the photovoltaic modules, thereby improving the cleanliness and power generation efficiency of the photovoltaic modules.

[0026] 2. In this invention, by arranging piezoelectric vibration units in groups along the surface of the support component in an oblique straight line and combining them with flexible support strips to form a resonant support structure with the photovoltaic module, it is possible to achieve alternating vibration in groups and gradual amplitude attenuation, so that the dust on the surface of the photovoltaic module falls sequentially in a preset direction, avoiding secondary dust fall and dust re-emergence, thereby achieving efficient active cleaning.

[0027] 3. In this invention, the photovoltaic module surface is provided with a low surface energy dustproof coating. Combined with airflow scouring and group vibration cleaning, the dust adhesion rate can be further reduced, and passive self-cleaning can be achieved under rainfall conditions. This significantly reduces the frequency of manual cleaning and improves the long-term operational stability and overall power generation efficiency of the photovoltaic system. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention; Figure 2 This is a schematic diagram of the frame body and its surface structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of a frame body according to an embodiment of the present invention; Figure 4 This is one embodiment of the present invention. Figure 2 A schematic diagram of the structure at point A; Figure 5 This is a schematic diagram of a wind-powered cleaning component structure according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the surface structure of a frame body according to an embodiment of the present invention; Figure 7 This is a schematic diagram of a wind duct structure formed by combining a wind duct plate and a wind vane plate according to an embodiment of the present invention. Figure 8 This is a schematic diagram of the control program flow according to an embodiment of the present invention.

[0029] Figure label: 100. Support frame assembly; 110. Photovoltaic module; 120. Sensor assembly; 130. Controller; 101. Tilt control rod; 200. Frame structure; 210. Flexible support component; 220. Air duct plate; 230. High-frequency vibration assembly; 300. Wind-powered cleaning assembly; 310. Air blower; 320. Wind turbine gear; 311. Universal coupling; 400. Wind vane; 410. Screw adjuster. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0031] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.

[0032] The following describes, with reference to the accompanying drawings, some embodiments of a solar cell support assembly provided by the present invention.

[0033] Example 1 Combination Figures 1-8 As shown, the present invention provides a solar cell support assembly, comprising: The support frame assembly 100 is used to support the photovoltaic module 110, the frame body 200, the wind-driven cleaning assembly 300, and the wind vane 400, while ensuring the overall stability. The top of the support frame assembly 100 is equipped with a tilt control rod 101, which supports and guides one end of the frame body 200, allowing the frame body 200 to swing in a controlled manner when subjected to vibration or airflow. A controller 130 is fixedly mounted on the surface of the support frame assembly 100 for centralized control of the entire assembly.

[0034] The photovoltaic module 110 is horizontally mounted above the frame 200, and its bottom surface is fixedly connected to the flexible support 210 and the high-frequency vibration component 230 to form a resonant support structure during vibration. A sensor group 120 is fixedly mounted on the surface of the photovoltaic module 110. The sensor group 120 includes a dust concentration detection sensor or a wind speed detection sensor, which is used to feed back environmental parameters to the controller 130.

[0035] The frame 200 is the core component for support and vibration execution. One end is rotatably connected to the support frame assembly 100, and the other end is guided and supported by an angle control rod 101. Several flexible support members 210 and high-frequency vibration components 230 are fixedly mounted on the surface of the frame 200. The flexible support members 210 and high-frequency vibration components 230 are arranged alternately and grouped in odd and even groups along the surface of the frame 200 in a diagonal straight line, thereby achieving alternating group vibration and gradual amplitude attenuation. A wind duct plate 220 is also fixed to the surface of the frame 200. The wind duct plate 220 is planar, and its top surface is at the same horizontal plane as the top surface of the photovoltaic module 110, forming a wind duct structure together with the wind vane 400.

[0036] In this embodiment, the high-frequency vibration assembly 230 includes a piezoelectric drive module disposed within the controller 130 and a piezoelectric vibrator fixed to the surface of the frame 200.

[0037] The piezoelectric vibrator uses laminated piezoelectric ceramics or strip piezoelectric vibrators with a vibration frequency of 80Hz to 300Hz, and resonates with the flexible support 210 to enhance dust conveying efficiency.

[0038] The controller 130 outputs a high-voltage PWM signal through a multi-channel piezoelectric drive circuit, which can independently control the vibration frequency and amplitude of each high-frequency vibration component 230, so as to realize the step-by-step transfer of dust and avoid secondary fallback.

[0039] In this embodiment, the flexible support 210 is made of spring steel sheet or thermoplastic polyurethane (TPU) material and is fixedly connected to the bottom surface of the photovoltaic module 110. It can efficiently transmit vibration and avoid damage to the surface of the photovoltaic module.

[0040] In this embodiment, the airfoil 400 is an airfoil structure with a curved bottom surface, located directly above the duct plate 220, and its inner side forms a narrow air duct with the duct plate 220. When natural wind flows through the air duct, the local wind speed can be significantly increased by utilizing Bernoulli's principle and the septum effect, achieving passive dust prevention and airflow clearing functions.

[0041] The wind vane 400 is supported at both ends by the side plates of the frame 200, and the angle can be adjusted by the screw adjuster 410 to adapt to different wind directions or dust deposition conditions.

[0042] In this embodiment, the wind-powered cleaning assembly 300 includes a blower 310, a wind turbine 320, and a universal coupling 311.

[0043] The blower 310 is installed in the air duct between the air duct plate 220 and the air blade plate 400. One end of the blower 310 is connected to the wind turbine 320 through the universal coupling 311 to realize the rotation and transmission linkage driven by the airflow, which further promotes the blowing away and rolling of dust.

[0044] In this embodiment, the controller 130, in conjunction with the sensor group 120, achieves adaptive cleaning control. When the wind speed is low or the dust concentration is high, the controller 130 drives the high-frequency vibration component 230 to start sequentially in odd and even groups, and gradually reduces the amplitude according to a preset graded linear decay or exponential decay strategy, causing the dust to slide down the inclined surface of the flexible support 210 in sequence, thereby avoiding secondary fall.

[0045] When the natural wind speed is high, an accelerating wind channel is formed between the wind duct plate 220 and the wind vane plate 400 to achieve passive airflow dust prevention and cleaning. Combined with the hydrophobic or oleophobic nano dustproof coating on the surface of the photovoltaic module 110, long-term self-cleaning is achieved.

[0046] In this embodiment, the photovoltaic module 110 has a low surface energy dustproof coating, which can effectively reduce the probability of dust particle adhesion. Combined with airflow scouring and group vibration cleaning, passive self-cleaning can be achieved when rain or dew occurs, significantly reducing the frequency of manual maintenance.

[0047] Example 2 In this embodiment, the overall structure of the solar cell support assembly of the present invention is basically the same as that of Embodiment 1, except that the structural design and driving method of the wind-powered cleaning assembly 300 have been improved, such as... Figure 5 , Figure 7 As shown: Improved structure of wind-powered cleaning assembly 300: The wind-powered cleaning assembly 300 includes a blower 310, a motor drive with a ratchet structure, and a universal coupling 311.

[0048] The blower 310 is still installed in the narrow air duct formed by the air duct plate 220 and the air blade plate 400. It can rotate freely under the natural wind to disturb and accelerate the airflow in the air duct, so as to achieve the effect of dust cleaning and blowing away.

[0049] The motor drive unit adopts a micro-motor structure with an integrated ratchet mechanism. The ratchet mechanism allows the blower 310 to rotate freely in the opposite direction under wind force without dragging the motor backward, thus achieving compatibility between active and passive wind-driven functions. This motor drive unit is powered and controlled by the controller 130, and can perform active cleaning at low wind speeds or at night.

[0050] Universal coupling 311 connects the blower 310 to the output shaft of the motor drive component, and is used to absorb angular deviations and minor vibrations to ensure smooth transmission.

[0051] Operating mode: Passive wind mode: When natural wind flows through the air duct, the blower 310 rotates under the action of wind force, the ratchet mechanism is in an idle state, the motor drive does not generate reverse resistance, and realizes the low-energy natural wind cleaning function.

[0052] Active motor mode: When the sensor group 120 detects that the dust concentration is high and the wind speed is insufficient, the controller 130 starts the motor drive to drive the blower 310 to rotate and realize the active cleaning function; at this time, the ratchet mechanism locks the motor output shaft and transmits torque.

[0053] Hybrid mode: Under low to medium wind speed conditions, the blower 310 is driven by wind power or by an auxiliary motor, thereby improving cleaning efficiency.

[0054] Synergistic effect with high-frequency vibration component 230: During the active cleaning cycle, controller 130 can synchronously activate high-frequency vibration component 230 and motor drive to form a synergistic effect of wind-powered cleaning and group vibration. When the blower 310 rotates in the air duct, it can enhance local airflow disturbance, making it easier for dust on the surface of photovoltaic module 110 to roll off or be blown away.

[0055] Specifically, by introducing a motor drive component with a ratchet structure, this embodiment can achieve active cleaning under windless or low-wind-speed conditions, passive wind-powered cleaning when there is wind, and automatically enter a hybrid mode under medium-wind-speed conditions, thus balancing energy saving and efficient cleaning needs. Compared with Embodiment 1, by improving the wind-powered cleaning component 300, a flexible cleaning solution compatible with both active and passive drives is achieved, thereby further enhancing the applicability and environmental adaptability of the present invention.

[0056] Working principle and usage process of this invention: The solar cell support module of the present invention achieves efficient dust prevention and self-cleaning functions of photovoltaic modules through a triple synergy of airflow acceleration dust prevention, group vibration self-cleaning, and surface dust-proof coating. Its working principle is as follows: 1. Airflow Acceleration Dust Prevention Principle: When natural wind passes through the module, a narrow air duct is formed between the air duct plate 220 on the side of the photovoltaic module 110 and the air wing plate 400 above it. The airflow within the duct accelerates due to streamline contraction, creating a localized high-velocity zone on the module surface using the Bernoulli effect and the principle of increased velocity in narrow tubes. As the wind speed increases, the probability of dust particles depositing on the module surface significantly decreases, while existing dust is more easily blown away, achieving passive dust prevention and airflow cleaning.

[0057] 2. Grouped vibration active cleaning principle: At night or under low wind speed conditions, such as... Figure 8 As shown, the controller 130 drives the piezoelectric vibration units distributed on the surface of the frame 200 to start sequentially in groups. The odd-numbered groups (1, 3, 5...) vibrate first, causing dust to slide down the inclined surface supported by the flexible support 210; subsequently, the amplitude of the odd-numbered groups gradually decays, and the even-numbered groups (2, 4, 6...) start and vibrate, realizing the step-by-step transfer and transport of dust. Through a linear or exponential graded decay strategy, the vibration dissipates step by step, preventing dust from being stirred up and falling back onto the photovoltaic module surface, thereby achieving efficient active cleaning.

[0058] 3. Synergistic Effect of Surface Dust-Repellent Coating: The surface of the photovoltaic module 110 is covered with a hydrophobic or oleophobic low surface energy nano-dust-repellent coating. When airflow or vibration occurs, dust particles are difficult to adhere firmly to the coating surface, exhibiting low-friction rolling off or easy peeling off when washed by water droplets. This coating further improves the dust removal efficiency of accelerated airflow and group vibration in the air duct, achieving a synergistic effect of dust prevention and self-cleaning.

[0059] 4. Environmental adaptive control logic: Sensor group 120 can detect wind speed or dust concentration in the air. When the wind speed is high or the dust concentration is low, controller 130 can extend the cleaning interval to achieve energy-saving operation. When high dust concentration is detected or there is no wind for a long time, the system automatically enters the group vibration cleaning mode and executes alternating attenuation vibration according to the set strategy to ensure that cleaning efficiency and energy saving are taken into account.

[0060] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0061] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A solar cell support assembly, characterized in that, include: Support frame assembly (100), photovoltaic module (110), frame body (200), wind-powered cleaning assembly (300) and wind vane (400); One end of the frame body (200) is rotatably mounted on the surface of the support frame assembly (100), and the surface of the support frame assembly (100) is provided with an angle control rod (101) movably connected to the other end of the frame body (200); a plurality of flexible support members (210) and a high-frequency vibration assembly (230) are fixedly mounted on the surface of the frame body (200), and one end of the flexible support members (210) and the high-frequency vibration assembly (230) is fixedly connected to the bottom surface of the photovoltaic module (110); the surface of the support frame assembly (100) is provided with The controller (130) has a sensor group (120) fixedly mounted on the surface of the photovoltaic module (110); the frame (200) has a wind duct plate (220) fixedly mounted on its surface, and the two ends of the frame (200) are provided with side plates for supporting the wind vane (400), and the surface of the side plates is provided with screw adjusters (410) for adjusting the angle of the wind vane (400); the wind vane (400) is located directly above the wind duct plate (220), and the wind duct plate (220) and the inner side of the wind vane (400) form a wind duct; The wind-powered cleaning assembly (300) includes a blower (310) and a wind turbine (320). The blower (310) is rotatably installed in the air duct. One end of the blower (310) is provided with a universal coupling (311), which is fixed to one side of the frame (200) and fixedly connected to the end of the wind turbine (320) to realize the transmission connection between the wind turbine (320) and the blower (310).

2. The solar cell support assembly according to claim 1, characterized in that, Several flexible support members (210) and high-frequency vibration components (230) are arranged alternately on the surface of the frame (200) and grouped into odd and even groups along the oblique straight line of the surface of the frame (200). The controller (130) is electrically connected to the high-frequency vibration components (230) respectively and is used to control the sequential start-up and amplitude decay of the frame (200) in groups.

3. The solar cell support assembly according to claim 1, characterized in that, The controller (130) uses a microcontroller or programmable logic device and outputs a high-voltage PWM signal through a multi-channel piezoelectric drive circuit to achieve independent control of the vibration frequency and amplitude of each high-frequency vibration component (230).

4. The solar cell support assembly according to claim 1, characterized in that, The high-frequency vibration component (230) includes a piezoelectric drive module located inside the controller (130) and a piezoelectric vibrator fixed to the surface of the frame (200). The piezoelectric vibrator is made of laminated piezoelectric ceramic or strip piezoelectric vibrator, and its vibration frequency is 80Hz to 300Hz. It resonates with the photovoltaic module (110) supported by the flexible support (210) to enhance the dust conveying effect.

5. The solar cell support assembly according to claim 1, characterized in that, The controller (130) controls the vibration intensity to decrease step by step according to a preset grouping alternating attenuation strategy. The attenuation is a graded linear attenuation or an exponential attenuation, thereby avoiding the secondary fall of dust on the surface of the photovoltaic module (110) when the vibration stops.

6. The solar cell support assembly according to claim 1, characterized in that, The sensor group (120) includes a dust concentration detection sensor or a wind speed detection sensor, and the controller (130) automatically adjusts the alternating vibration period and decay time of the group according to the ambient dust concentration or wind speed.

7. The solar cell support assembly according to claim 1, characterized in that, The flexible support (210) is made of spring steel sheet or thermoplastic polyurethane (TPU) material and is fixedly connected to the bottom surface of the photovoltaic module (110) to enhance vibration transmission efficiency and avoid damage to the surface of the photovoltaic module.

8. The solar cell support assembly according to claim 1, characterized in that, The surface of the duct plate (220) is planar and is on the same horizontal plane as the top surface of the photovoltaic module (110). The wind vane (400) is wing-shaped and the bottom surface of the wind vane (400) is curved, which is used to form a high-pressure zone inside the duct between the duct plate (220) and the wind vane (400).

9. The solar cell support assembly according to claim 1, characterized in that, The photovoltaic module (110) has a dustproof coating on its surface. The dustproof coating is a hydrophobic or oleophobic nano-coating and has low surface energy characteristics, which is used to reduce the adhesion of dust particles in the air to the surface of the photovoltaic module (110).

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