Integrated power station based on photovoltaic energy storage
By combining a dynamic cleaning system and an air knife-assisted system, the cleaning challenges of photovoltaic power generation systems in cold and snowy regions have been solved, achieving comprehensive cleaning and energy recycling, and improving the reliability and economy of the system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANXI ZHONGHUI TIMES NEW ENERGY CO LTD
- Filing Date
- 2025-12-04
- Publication Date
- 2026-05-15
AI Technical Summary
Existing photovoltaic power generation systems in cold and snowy regions suffer from problems such as cleaning devices being unable to effectively remove dense ice layers and highly adhesive stains, and a lack of environmental perception and intelligent decision-making capabilities, resulting in system response delays and energy waste.
Employing a dynamic cleaning system, an air knife-assisted system, and a shock-absorbing self-cleaning system, combined with drive components, vibration components, air jet components, and buffer components, it achieves a three-dimensional cleaning trajectory. Utilizing the Coanda effect to enhance airflow adhesion and high-frequency vibration, along with dust prevention through an air film layer, it achieves all-round cleaning and energy recycling.
It significantly improves the cleaning coverage of photovoltaic array modules, extends the lifespan of the modules, reduces maintenance frequency and costs, and achieves sustainability and efficiency in the cleaning process.
Smart Images

Figure CN121567045B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of photovoltaic technology, specifically to an integrated power station based on photovoltaic energy storage. Background Technology
[0002] Faced with the severe challenges of global climate change, over-reliance on traditional fossil fuels has led to a continuous rise in carbon emissions, triggering a series of environmental problems such as the greenhouse effect and frequent extreme weather events. To address this global crisis, the international community has reached a consensus to actively promote energy transition and vigorously develop renewable energy. This goal has pointed the way for energy sector development: accelerating the construction of a new power system based on renewable energy, reducing dependence on traditional fossil fuels, and achieving a clean and low-carbon energy transition.
[0003] Photovoltaic power generation, as a clean and renewable energy source, boasts significant advantages such as abundant resources, wide distribution, and zero pollution. With continuous technological advancements and cost reductions, photovoltaic power generation has been widely adopted globally, resulting in rapid growth in installed capacity. However, photovoltaic power generation is characterized by intermittency and volatility, with its output significantly affected by factors such as sunlight intensity and weather conditions, making it difficult to directly meet the stable power supply demands of the power system. Energy storage technology, as a key means to address the intermittency and volatility of renewable energy, can store excess electrical energy and release it during periods of insufficient sunlight or peak electricity demand, achieving spatiotemporal shift of electricity and improving the stability and reliability of the power system. Therefore, the integrated combination of photovoltaics and energy storage has become an important technological path to achieve energy transition and "dual-carbon" goals.
[0004] For example, patent document CN220342286U discloses an integrated photovoltaic power station, including a roof, photovoltaic panels, and an energy storage system. The lower surface of the roof is covered with a heat insulation layer. The photovoltaic panels are installed on the upper surface of the roof. Support plates are installed in the middle of the roof on both sides of the photovoltaic panels. A screw is rotatably installed between the support plates above the photovoltaic panels. One end of the screw passes through the support plate, and a motor is installed at one end of the support plate. The motor output is connected to the screw. A threaded block is threaded onto the surface of the screw. An mounting plate is installed at the lower end of the threaded block. Scrapers are installed on both sides of the lower end of the mounting plate. A soft pad is detachably installed at the lower end of the mounting plate between the two scrapers. This patent document controls the rotation of the motor, which drives the threaded block through the screw. The threaded block drives the scrapers and soft pad to scrape away snow from the surface of the photovoltaic panels, effectively improving the power generation of the photovoltaic panels after snowfall and facilitating cleaning.
[0005] Existing cleaning mechanisms using a combination of scrapers and pads, while theoretically capable of addressing snow accumulation on photovoltaic modules, suffer from fundamental flaws in practical engineering applications. The scraper structure can only handle loose surface snow, failing to effectively remove dense ice layers formed by melting and refreezing snow due to diurnal temperature variations, or highly adhesive composite stains resulting from the mixing of dust, pollen, and other pollutants with snow and ice. More critically, these devices lack environmental awareness and intelligent decision-making capabilities. They cannot autonomously determine the optimal cleaning time based on the degree of surface contamination, changes in weather conditions, and the decline in power generation efficiency. They often only activate passively after contamination has severely impacted power generation performance, or operate frequently when unnecessary, leading to system response delays, energy waste, and prolonged sub-optimal operation of the photovoltaic modules. This severely restricts the reliability and economic viability of photovoltaic systems in cold, snowy regions. Therefore, this application proposes an integrated photovoltaic energy storage power station. Summary of the Invention
[0006] The purpose of this invention is to provide an integrated power station based on photovoltaic energy storage to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, the present invention provides the following technical solution: an integrated power station based on photovoltaic energy storage, comprising a photovoltaic array module and a battery energy storage compartment, and further comprising:
[0008] The dynamic cleaning system includes a cleaning and maintenance plate covering the surface of the photovoltaic array module, and flexible scrapers with air vents are provided on both sides of the cleaning and maintenance plate. It also includes a drive component for driving the cleaning and maintenance plate to slide laterally, and a shaking component for driving the cleaning and maintenance plate to slide longitudinally.
[0009] The air knife auxiliary system includes a top plate disposed on the top edge of the photovoltaic array module, and the top plate is connected to the internal cavity of the cleaning and maintenance plate through a spring tube. It also includes a straight groove plate rotatably connected inside the top plate, and an air jet assembly disposed inside the top plate that can pump air to the spring tube. The air jet assembly can be rotated in conjunction with the straight groove plate.
[0010] The anti-vibration self-cleaning system includes an air support pipe installed at the bottom of the photovoltaic array module, with an air groove on one side of the air support pipe communicating with the outside. It also includes an air source component that allows the air groove to be blown to cover the surface of the photovoltaic array module. The bottom of the photovoltaic array module is fixedly connected to multiple supports, and the bottom of the supports is provided with a buffer component.
[0011] Preferably, the drive assembly includes a first motor fixedly connected to one side of the photovoltaic array module, an adjustment screw rotatably connected to the top of the photovoltaic array module, and a slider connected to a cleaning and maintenance plate having a threaded connection on the outer surface of the adjustment screw.
[0012] Preferably, the shaking component includes a fixed arc top fixedly connected to one end of the cleaning and maintenance plate, a plurality of top plates adapted to the fixed arc top are fixedly connected to one side of the top plate, a slide rod slidably connected to the slider is fixedly connected to one end of the cleaning and maintenance plate, and a spring for the cleaning and maintenance plate to reset is sleeved on the outer surface of the slide rod.
[0013] Preferably, the air-impact assembly includes an air-gathering groove inside the top plate, and a plurality of ball pistons that can abut against the straight groove plate are slidably connected inside the top plate. The movement of the ball pistons can blow air into the air-gathering groove, and a pressure spring for self-reset is fixedly connected to one end of the ball pistons.
[0014] Preferably, a water storage tank is fixedly connected to the bottom of the photovoltaic array module, the bottom of the top plate is connected to the water storage tank through a drain pipe, a push plate is provided inside the water storage tank, a cylinder for driving the push plate to move is fixedly connected to the bottom of the water storage tank, and multiple rubber drain holes are provided on the top of the water storage tank.
[0015] Preferably, the cleaning and maintenance plate has a water channel for liquid to enter, a scraper blade is fixedly connected to the bottom of the cleaning and maintenance plate, a water tank for liquid storage is provided inside the cleaning and maintenance plate, and the top of the scraper blade extends into the water tank.
[0016] Preferably, the straight groove plate has two configuration beads inside, and the two configuration beads are connected by a tension spring. The top plate has a breathing groove inside, and a rainwater collection groove is provided on the top of the top plate. A second motor for driving the straight groove plate to rotate is fixedly connected to one side of the top plate.
[0017] Preferably, the buffer assembly includes a piston rod fixedly connected to the bottom of the bracket, a buffer cylinder is sleeved on the outer surface of the piston rod, the piston end of the piston rod is located inside the buffer cylinder, and a spring for driving the piston rod to return to its original position is sleeved on the outer surface of the piston rod.
[0018] Preferably, the air source assembly includes two Roots vanes rotatably connected inside the air support pipe. A synchronous motor for driving the Roots vanes to rotate is fixedly connected to one side of the air support pipe. An air pipe communicating with a buffer cylinder is connected to the bottom of the air support pipe. A through pipe is connected to one side of the buffer cylinder, and a valve is fixedly connected inside the through pipe.
[0019] Preferably, the buffer cylinder is provided with a narrowing air cylinder inside, and the piston end of the piston rod is connected to a connecting rod that is rotatably connected to the narrowing air cylinder.
[0020] Compared with the prior art, the beneficial effects of the present invention are:
[0021] 1. Through the ingenious cooperation of the drive and vibration components, the cleaning and maintenance plate automatically vibrates longitudinally during its lateral movement, forming a three-dimensional cleaning trajectory. This allows the flexible scraper to perform all-around friction cleaning on the surface of the photovoltaic array module, significantly improving cleaning coverage, especially in corner areas, and effectively avoiding the cleaning blind spots caused by traditional unidirectional scraping. Secondly, the air knife auxiliary system drives the straight groove plate to rotate via a second motor, periodically squeezing the ball piston to generate pulsed airflow. This airflow is delivered to the interior of the cleaning and maintenance plate through a spring tube and ejected obliquely from the air outlet of the flexible scraper at a 15°-25° angle to the surface. Utilizing the Coanda effect, the airflow adheres to the wall, effectively loosening and blowing away coarse and hard particles on the surface, avoiding scratches on the photovoltaic glass during scraping, and significantly extending the module's lifespan. Meanwhile, the beads inside the straight groove plate, connected by tension springs, generate high-frequency vibrations under the alternating effects of centrifugal force and gravity. This vibration is transmitted through the top plate to the photovoltaic array module, further loosening stubborn stains and greatly improving cleaning efficiency. The coordinated design of the water storage system and the internal water channels and tanks of the cleaning and maintenance plate enables precise moist cleaning of highly adhesive stains such as thick silt or dried bird droppings. When the cylinder pushes the pusher plate upward, the liquid pressure in the water tank increases to the set value, and the rubber drain hole automatically opens. Liquid flows into the water tank through the water channels, and wets the scraper blades through capillary action, providing appropriate moisture without leaving water stains. The rainwater collection tank at the top of the top plate and the water storage tank form a closed-loop water circulation, making full use of natural resources, significantly reducing dependence on external water sources, and achieving sustainability of the cleaning process.
[0022] 2. Through the precise design of the air supply pipe and air trough, the air source component can continuously provide a stable airflow to the surface of the photovoltaic array module, forming an effectively covering air film layer, significantly inhibiting the natural settling of dust particles and maintaining the long-term cleanliness of the photovoltaic module surface. Simultaneously, the system innovatively integrates buffering functionality with a self-cleaning mechanism: the buffer component at the bottom of the support not only effectively absorbs external vibration energy, protecting the photovoltaic array module from mechanical damage, but also, through the ingenious cooperation of the narrowed air cylinder and connecting rod, converts airflow energy into controllable low-frequency vibration, disturbing the boundary layer airflow on the photovoltaic surface, further enhancing the dustproof effect. More importantly, this system achieves efficient energy recycling and multi-system synergy. The air supply pipe connects to the buffer cylinder through the air pipe, and with the precise control of the connecting pipe and valves, the airflow forms a closed loop within the system, meeting dustproof requirements while providing working energy for the buffer component, avoiding additional energy consumption. During the active cleaning process, this system works seamlessly with the dynamic cleaning system: when the cleaning and maintenance panel is cleaning the surface, the synchronous motor can adjust its rotation direction to create suction force in the air channels, accelerating the removal of impurities from the photovoltaic surface; simultaneously, the auxiliary vibration of the piston rod enhances the cleaning effect of the cleaning and maintenance panel, especially in removing stubborn stains. This multi-system collaborative working mechanism not only significantly improves cleaning efficiency but also extends the lifespan of the photovoltaic modules and reduces system maintenance frequency and costs. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention;
[0024] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention;
[0025] Figure 3 This is a schematic cross-sectional view of the photovoltaic array module in this invention;
[0026] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A;
[0027] Figure 5 This is a cross-sectional structural diagram of the cleaning and maintenance plate in this invention;
[0028] Figure 6 This is a partial structural diagram of the top plate in this invention;
[0029] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B;
[0030] Figure 8 This is a schematic diagram of the trachea structure in this invention;
[0031] Figure 9 In this invention Figure 8 Enlarged structural diagram at point C;
[0032] Figure 10 This is a schematic diagram of the buffer cylinder in this invention.
[0033] In the diagram: 100, Photovoltaic array module; 101, Battery storage compartment; 200, Cleaning and maintenance plate; 201, Flexible scraper; 202, Slider; 203, Sliding rod; 204, Spring; 205, Adjustment screw; 206, Fixed arc top; 207, Top plate; 208, First motor; 209, Scraper blade; 300, Top plate; 301, Rainwater collection trough; 302, Bourdon tube; 303, Second motor; 304, Straight groove plate; 305, Configuration bead; 306, Tension spring; 307, Breathing groove; 308 309. Air inlet; 310. Ball piston; 311. Pressure spring; 312. Water tank; 313. Drain pipe; 314. Push plate; 315. Cylinder; 316. Rubber drain hole; 317. Water channel; 318. Water tank; 400. Air pipe; 401. Air inlet; 402. Roots vane; 403. Synchronous motor; 404. Air pipe; 405. Support; 406. Buffer cylinder; 407. Piston rod; 408. Spring sleeve; 409. Connecting rod; 410. Narrowing air cylinder; 411. Through pipe; 412. Valve. Detailed Implementation
[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0035] Example 1: Please refer to Figure 1 - Figure 10 This invention provides a technical solution: an integrated power station based on photovoltaic energy storage, comprising a photovoltaic array module 100 and a battery energy storage compartment 101.
[0036] It also includes a dynamic cleaning system, which includes a cleaning and maintenance plate 200 covering the surface of the photovoltaic array module 100. The cleaning and maintenance plate 200 is made of a high-molecular composite material and has the characteristics of being lightweight, wear-resistant, and resistant to ultraviolet aging. Both sides of the cleaning and maintenance plate 200 are provided with flexible scrapers 201 with air vents. The air vents are opened so that the airflow direction is at an angle of 15°-25° with the surface of the photovoltaic array module 100 to generate the Coanda effect to enhance the airflow adhesion to the wall. It also includes a drive component for driving the cleaning and maintenance plate 200 to slide laterally, and a shaking component for driving the cleaning and maintenance plate 200 to slide longitudinally.
[0037] It also includes an air knife auxiliary system, which includes a top plate 300 disposed at the top edge of the photovoltaic array module 100, and the top plate 300 is connected to the internal cavity of the cleaning and maintenance plate 200 through a spring tube 302. It also includes a straight groove plate 304 rotatably connected inside the top plate 300, and an air jet assembly disposed inside the top plate 300 that can pump air to the spring tube 302. The air jet assembly can rotate with the straight groove plate 304.
[0038] Furthermore, the drive assembly includes a first motor 208 fixedly connected to one side of the photovoltaic array module 100, an adjustment screw 205 rotatably connected to the top of the photovoltaic array module 100, and a slider 202 connected to the cleaning and maintenance plate 200 threadedly connected to the outer surface of the adjustment screw 205.
[0039] The shaking component includes a fixed arc top 206 fixedly connected to one end of the cleaning and maintenance plate 200. Multiple top plates 207 adapted to the fixed arc top 206 are fixedly connected to one side of the top plate 300. A slide rod 203 slidably connected to the slider 202 is fixedly connected to one end of the cleaning and maintenance plate 200. A spring 204 for resetting the cleaning and maintenance plate 200 is sleeved on the outer surface of the slide rod 203. Upon contact, the fixed arc top 206 is forced downwards, causing the slide rod 203 to slide within the slider 202, stretching the spring 204. When the fixed arc top 206 passes the top plates 207, the spring 204 releases energy, pushing the cleaning and maintenance plate 200 back to its original position quickly, creating an up-and-down shaking motion. This combined lateral movement and longitudinal shaking motion allows the flexible scraper 201 to perform three-dimensional friction cleaning on the surface of the photovoltaic array module 100, effectively removing loose dust.
[0040] Furthermore, the air-impact assembly includes an air-gathering groove 308 formed inside the top plate 300. Multiple ball pistons 309 that can abut against the straight groove plate 304 are slidably connected inside the top plate 300. The movement of the ball pistons 309 can blow air into the air-gathering groove 308. One end of the ball piston 309 is fixedly connected to a pressure spring 310 for its own reset. This pulsed airflow can loosen and blow away coarse and hard particles in advance, avoiding scratch damage.
[0041] The bottom of the photovoltaic array module 100 is fixedly connected to a water storage tank 311. The bottom of the top plate 300 is connected to the water storage tank 311 through a drain pipe 312. The water storage tank 311 is equipped with a push plate 313. The bottom of the water storage tank 311 is fixedly connected to a cylinder 314 for driving the push plate 313 to move. The top of the water storage tank 311 is equipped with multiple rubber drain holes 315. When the cylinder 314 is operated, the push plate 313 is pushed upward to squeeze the rainwater or pre-stored cleaning liquid collected in the water storage tank 311. When the liquid pressure increases to 0.08MPa, the rubber drain holes 315 are forced to open. The liquid passes through the water channel 316 and is then stored in the water tank 317 to wet the scraper blade 209, so that it is attached with water for cleaning. At the same time, when the airflow passes through 200 and is discharged from 201, it also carries away excess liquid.
[0042] Furthermore, the cleaning and maintenance plate 200 has a water channel 316 for liquid entry, a scraper blade 209 is fixedly connected to the bottom of the cleaning and maintenance plate 200, and a water tank 317 for liquid storage is provided inside the cleaning and maintenance plate 200, with the top of the scraper blade 209 extending into the water tank 317. The straight groove plate 304 has two configuration beads 305 inside, and a tension spring 306 connects the two configuration beads 305 together. When the straight groove plate 304 rotates, the configuration beads 305 inside are connected by the tension spring 306. Next, under the alternating action of centrifugal force and gravity, it slides back and forth along the internal channel of the straight groove plate 304, constantly impacting the inner wall of the straight groove plate 304, generating high-frequency vibrations of 30-80Hz. This vibration is transmitted to the photovoltaic array module 100 through the top plate 300, causing it to vibrate slightly and further loosen stubborn stains. The top plate 300 has a breathing groove 307 inside and a rainwater collection groove 301 on the top of the top plate 300. A second motor 303 for driving the straight groove plate 304 to rotate is fixedly connected to one side of the top plate 300.
[0043] Specifically, dust easily adheres to the surface of the photovoltaic array module 100, affecting its efficiency. By turning on the first motor 208, the adjusting screw 205 can be rotated, which in turn moves the slider 202. At this time, the cleaning and maintenance plate 200 moves to clean the surface of the photovoltaic array module 100 and remove sand and dust. When the cleaning and maintenance plate 200 moves, the top plate 207 will cooperate with the fixed arc top 206. The cooperation between the fixed arc top 206 and the top plate 207 will cause the force to shift and drive the slide rod 203 to slide, thereby making the cleaning and maintenance plate 200 slide up and down to achieve three-dimensional friction cleaning.
[0044] When encountering stubborn stains or in desert environments, coarser sand particles are harder and easily form scratches when scraped. At this time, the second motor 303 drives the straight groove plate 304 to rotate, which in turn continuously squeezes the ball piston 309. This causes the ball piston 309 to continuously blow air into the air collection groove 308 and deliver it to the cleaning and maintenance plate 200 through the spring tube 302. The gas then cleans the maintenance plate 200 and is discharged from the side of the flexible scraper 201, blowing onto the surface of the photovoltaic array module 100. This achieves pre-blowing of coarser sand particles and impurities, cleaning them in advance. At the same time, the rotation of the straight groove plate 304 can continuously change the position of the configuration ball 305, causing it to slide back and forth under the alternating action of centrifugal force and gravity, thereby continuously impacting the straight groove plate 304 and transmitting resonance into the photovoltaic array module 100, causing it to vibrate slightly.
[0045] When encountering thick silt or completely dried bird droppings covering the surface of the photovoltaic array module 100, the cylinder 314 can be operated to drive the push plate 313 upward, thereby squeezing the liquid in the water tank 311 upward and conveying it through the rubber drain hole 315 to the water channel 316 in the cleaning and maintenance plate 200. Then, it is stored in the water tank 317 to moisten the scraper blade 209, so that it is coated with water for cleaning.
[0046] In summary, through the ingenious cooperation of the driving and shaking components, the cleaning and maintenance plate 200 achieves automatic longitudinal shaking during lateral movement, forming a three-dimensional cleaning trajectory. This allows the flexible scraper 201 to perform all-round friction cleaning on the surface of the photovoltaic array module 100, significantly improving the cleaning coverage, especially the cleaning effect in corner areas, and effectively avoiding the cleaning blind spots caused by traditional unidirectional scraping. Secondly, the air knife auxiliary system drives the straight groove plate 304 to rotate through the second motor 303, periodically squeezing the ball piston 309 to generate pulsed airflow. This airflow is delivered to the interior of the cleaning and maintenance plate 200 through the spring tube 302 and sprayed obliquely from the air outlet of the flexible scraper 201 at an angle of 15°-25° to the surface. Utilizing the Coanda effect, the airflow adhesion is enhanced, effectively loosening and blowing away coarse and hard particles on the surface, avoiding scratches on the photovoltaic glass during scraping, and significantly extending the module's service life. Meanwhile, the beads 305 inside the straight groove plate 304, connected by the tension spring 306, generate high-frequency vibrations under the alternating action of centrifugal force and gravity. This vibration is transmitted to the photovoltaic array module 100 through the top plate 300, further loosening stubborn stains and greatly improving cleaning efficiency. The coordinated design of the water storage system and the internal water channels 316 and water tank 317 of the cleaning and maintenance plate 200 enables precise moist cleaning of highly adhesive stains such as thick silt or dried bird droppings. When the cylinder 314 pushes the pusher 313 upward, the liquid pressure in the water tank 311 increases to the set value, and the rubber drain hole 315 automatically opens. The liquid flows into the water tank 317 through the water channel 316, and wets the scraper blade 209 through capillary action, providing appropriate moisture without leaving water stains. The rainwater collection trough 301 at the top of the top plate 300 and the water tank 311 form a closed-loop water circulation, making full use of natural resources, significantly reducing dependence on external water sources, and achieving sustainability of the cleaning process.
[0047] Example 2: Please refer to Figure 1 - Figure 10 The present invention also provides a technical solution, which differs from the technical solution of embodiment one as follows: an integrated power station based on photovoltaic energy storage, which further includes a shockproof self-cleaning system, which includes an air support pipe 400 disposed at the bottom of the photovoltaic array module 100, and an air groove 401 connected to the outside on one side of the air support pipe 400. It also includes an air source component that allows the air groove 401 to purge gas to cover the surface of the photovoltaic array module 100. Multiple supports 405 are fixedly connected to the bottom of the photovoltaic array module 100, and a buffer component is disposed at the bottom of the supports 405. The air source component can provide a stable flow of gas to the air groove 401 to form an air film layer covering the surface of the photovoltaic array module 100.
[0048] Furthermore, the buffer assembly includes a piston rod 407 fixedly connected to the bottom of the bracket 405. A buffer cylinder 406 is sleeved on the outer surface of the piston rod 407. The piston end of the piston rod 407 is located inside the buffer cylinder 406. A spring 408 is sleeved on the outer surface of the piston rod 407 to drive the piston rod 407 to reset. The core function is to attenuate external vibrations such as wind vibration and earthquakes, protect the structural safety of the photovoltaic array module 100, and extend its service life.
[0049] Furthermore, the air source assembly includes two Roots blades 402 rotatably connected inside the air support pipe 400. A synchronous motor 403 for driving the Roots blades 402 to rotate is fixedly connected to one side of the air support pipe 400. An air pipe 404 connected to the bottom of the air support pipe 400 is connected to the buffer cylinder 406. A through pipe 411 is connected to one side of the buffer cylinder 406. A valve 412 is fixedly connected inside the through pipe 411. The stable airflow generated by the Roots blades 402 forms a 3-5mm thick air film layer on the photovoltaic surface, maintaining a dust settling rate of 100% and long-term high-efficiency operation.
[0050] The buffer cylinder 406 contains a narrowing air cylinder 410. The piston end of the piston rod 407 is connected to a connecting rod 409 that is rotatably connected to the narrowing air cylinder 410. It utilizes the principles of fluid mechanics to convert the flowing air into controllable mechanical vibration. This means that without an additional vibration motor, the airflow of the system itself can induce the photovoltaic panel to produce slight vibrations, thereby shaking off light dust and enhancing its self-cleaning ability.
[0051] Specifically, to maintain the high cleanliness of the photovoltaic array module 100, the synchronous motor 403 can be continuously turned on to drive the two Roots vanes 402 to rotate, thereby exhausting gas from the air slot 401. At this time, a layer of flowing gas will be formed on the surface of the photovoltaic array module 100. At the same time, the air supply pipe 400 will draw air from multiple air pipes 404, and multiple valves 412 will be opened simultaneously to connect the supply pipe 411 with the buffer cylinder 406, so that the supply pipe 404 can smoothly draw in gas. When the gas passes through the buffer cylinder 406, it will pass through the narrowed air cylinder 410, causing it to be subjected to force and change the tilt state of the connecting rod 409. In cooperation with the sleeve spring 408, the piston rod 407 vibrates at a low frequency, thereby disturbing the airflow at the top of the photovoltaic array module 100, making the airflow turbulent and further suppressing the dust coverage.
[0052] The air tube 400 can also be used in conjunction with the cleaning and maintenance plate 200. When the cleaning and maintenance plate 200 is running, the air groove 401 is activated to generate suction. The impurities swept down by the cleaning and maintenance plate 200 will be accelerated to slide off under the suction force generated by the air groove 401 and gravity. At the same time, the vibration of the piston rod 407 can assist the cleaning work of the cleaning and maintenance plate 200.
[0053] In summary, through the precise design of the air supply pipe 400 and the air trough 401, the air source component can continuously provide a stable airflow to the surface of the photovoltaic array module 100, forming an effectively covering air film layer, significantly inhibiting the natural settling of dust particles, and maintaining the long-term cleanliness of the photovoltaic module surface. Simultaneously, the system innovatively integrates buffering function with a self-cleaning mechanism: the buffer component at the bottom of the bracket 405 not only effectively absorbs external vibration energy, protecting the photovoltaic array module 100 from mechanical damage, but also, through the ingenious cooperation of the narrowed air cylinder 410 and the connecting rod 409, converts airflow energy into controllable low-frequency vibration, disturbing the boundary layer airflow on the photovoltaic surface, further enhancing the dustproof effect. More importantly, this system achieves efficient energy recycling and multi-system synergy. The air supply pipe 400 is connected to the buffer cylinder 406 through the air pipe 404, and with the precise control of the through pipe 411 and valve 412, the airflow forms a closed loop within the system, satisfying dustproof requirements while providing working energy for the buffer component, avoiding additional energy consumption. During the active cleaning process, this system works in perfect synergy with the dynamic cleaning system: when the cleaning and maintenance panel 200 cleans the surface, the synchronous motor 403 can adjust its rotation direction, causing the air groove 401 to generate adsorption force, accelerating the removal of impurities from the photovoltaic surface; simultaneously, the auxiliary vibration of the piston rod 407 enhances the cleaning effect of the cleaning and maintenance panel 200, especially in removing stubborn stains. This multi-system collaborative working mechanism not only significantly improves cleaning efficiency but also extends the service life of the photovoltaic modules and reduces system maintenance frequency and costs.
[0054] Working principle: When in use, the photovoltaic array module 100 directly converts solar energy into direct current and stores it in the battery energy storage compartment 101;
[0055] Dust easily adheres to the surface of the photovoltaic array module 100, affecting its efficiency. By turning on the first motor 208, the adjusting screw 205 can be rotated, which in turn moves the slider 202. At this time, the cleaning and maintenance plate 200 moves to clean the surface of the photovoltaic array module 100 and remove sand and dust. When the cleaning and maintenance plate 200 moves, the top plate 207 will cooperate with the fixed arc top 206. The cooperation between the fixed arc top 206 and the top plate 207 will cause the force to shift and drive the slide rod 203 to slide, thereby making the cleaning and maintenance plate 200 slide up and down to achieve three-dimensional friction cleaning.
[0056] When encountering stubborn stains or in desert environments, coarser sand grains are harder and easily form scratches when scraped. At this time, the second motor 303 drives the straight groove plate 304 to rotate, which in turn continuously squeezes the ball piston 309. This causes the ball piston 309 to continuously blow air into the air collection groove 308 and deliver it to the cleaning and maintenance plate 200 through the spring tube 302. The gas then cleans the maintenance plate 200 and is discharged from the side of the flexible scraper 201, blowing onto the surface of the photovoltaic array module 100. This achieves pre-blowing of coarser sand impurities and cleans the impurities in advance. At the same time, the rotation of the straight groove plate 304 can continuously change the position of the configuration ball 305, causing it to slide back and forth under the alternating action of centrifugal force and gravity, thereby continuously impacting the straight groove plate 304 and transmitting resonance into the photovoltaic array module 100, causing it to vibrate slightly.
[0057] When encountering thick silt or completely dried bird droppings covering the surface of the photovoltaic array module 100, the cylinder 314 can be operated to drive the push plate 313 to move upward, thereby squeezing the liquid in the water storage tank 311 upward and conveying it through the rubber drain hole 315 to the water channel 316 in the cleaning and maintenance plate 200. Then, it is stored in the water tank 317 to moisten the scraper blade 209, so that it is coated with water for cleaning.
[0058] To maintain the high cleanliness of the photovoltaic array module 100, the synchronous motor 403 can be continuously turned on to drive the two Roots vanes 402 to rotate, thereby exhausting gas from the air slot 401. At this time, a layer of flowing gas will be formed on the surface of the photovoltaic array module 100. At the same time, the air supply pipe 400 will draw air from multiple air pipes 404, and multiple valves 412 will be opened simultaneously to connect the supply pipe 411 with the buffer cylinder 406, so that the supply pipe 404 can smoothly draw in gas. When the gas passes through the buffer cylinder 406, it will pass through the narrowed air cylinder 410, causing it to be subjected to force and change the tilt state of the connecting rod 409. In cooperation with the sleeve spring 408, the piston rod 407 vibrates at a low frequency, thereby disturbing the airflow at the top of the photovoltaic array module 100, making the airflow turbulent and further suppressing the dust cover.
[0059] The air tube 400 can also be used in conjunction with the cleaning and maintenance plate 200. When the cleaning and maintenance plate 200 is running, the air groove 401 is activated to generate suction. The impurities swept down by the cleaning and maintenance plate 200 will be accelerated to slide off under the suction force generated by the air groove 401 and gravity. At the same time, the vibration of the piston rod 407 can assist the cleaning work of the cleaning and maintenance plate 200.
[0060] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0061] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.
Claims
1. An integrated power station based on photovoltaic energy storage, comprising a photovoltaic array module (100) and a battery energy storage compartment (101), characterized in that, Also includes: The dynamic cleaning system includes a cleaning and maintenance plate (200) covering the surface of the photovoltaic array module (100), and flexible scrapers (201) with air vents are provided on both sides of the cleaning and maintenance plate (200). It also includes a driving component for driving the cleaning and maintenance plate (200) to slide laterally, and a shaking component for driving the cleaning and maintenance plate (200) to slide longitudinally. The air knife auxiliary system includes a top plate (300) disposed on the top edge of the photovoltaic array module (100), and the top plate (300) is connected to the internal cavity of the cleaning and maintenance plate (200) through a spring tube (302). It also includes a straight groove plate (304) rotatably connected inside the top plate (300), and an air jet assembly disposed inside the top plate (300) that can pump air to the spring tube (302). The air jet assembly can be rotated in conjunction with the straight groove plate (304). The air-impact assembly includes an air-gathering groove (308) opened inside the top plate (300). Multiple ball pistons (309) that can abut against the straight groove plate (304) are slidably connected inside the top plate (300). The movement of the ball pistons (309) can blow air into the air-gathering groove (308). One end of the ball pistons (309) is fixedly connected to a pressure spring (310) for self-reset. The anti-vibration self-cleaning system includes an air support pipe (400) set at the bottom of the photovoltaic array module (100), and an air groove (401) is opened on one side of the air support pipe (400) to communicate with the outside. It also includes an air source component that allows the air groove (401) to blow gas to cover the surface of the photovoltaic array module (100). The bottom of the photovoltaic array module (100) is fixedly connected to multiple supports (405), and the bottom of the supports (405) is provided with a buffer component. The air source assembly includes two Roots vanes (402) rotatably connected inside the air support pipe (400). A synchronous motor (403) for driving the Roots vanes (402) to rotate is fixedly connected to one side of the air support pipe (400). An air pipe (404) communicating with a buffer cylinder (406) is connected to the bottom of the air support pipe (400). A through pipe (411) is connected to one side of the buffer cylinder (406). A valve (412) is fixedly connected inside the through pipe (411).
2. The integrated power station based on photovoltaic energy storage according to claim 1, characterized in that: The drive assembly includes a first motor (208) fixedly connected to one side of the photovoltaic array module (100), and an adjustment screw (205) rotatably connected to the top of the photovoltaic array module (100). The outer surface of the adjustment screw (205) is threaded with a slider (202) connected to the cleaning and maintenance plate (200).
3. The integrated power station based on photovoltaic energy storage according to claim 2, characterized in that: The shaking assembly includes a fixed arc top (206) fixedly connected to one end of the cleaning and maintenance plate (200). A plurality of top plates (207) adapted to the fixed arc top (206) are fixedly connected to one side of the top plate (300). A slide rod (203) slidably connected to the slider (202) is fixedly connected to one end of the cleaning and maintenance plate (200), and a spring (204) for the cleaning and maintenance plate (200) to reset is sleeved on the outer surface of the slide rod (203).
4. The integrated power station based on photovoltaic energy storage according to claim 1, characterized in that: A water storage tank (311) is fixedly connected to the bottom of the photovoltaic array module (100). The bottom of the top plate (300) is connected to the water storage tank (311) through a drain pipe (312). A push plate (313) is provided inside the water storage tank (311). A cylinder (314) for driving the push plate (313) to move is fixedly connected to the bottom of the water storage tank (311). A plurality of rubber drain holes (315) are provided on the top of the water storage tank (311).
5. The integrated power station based on photovoltaic energy storage according to claim 1, characterized in that: The cleaning and maintenance plate (200) has a water channel (316) for liquid to enter inside, a scraper (209) is fixedly connected to the bottom of the cleaning and maintenance plate (200), a water tank (317) for liquid storage is opened inside the cleaning and maintenance plate (200), and the top of the scraper (209) extends into the water tank (317).
6. The integrated power station based on photovoltaic energy storage according to claim 1, characterized in that: The straight groove plate (304) is provided with two configuration beads (305) inside, and the two configuration beads (305) are connected by a tension spring (306). The top plate (300) is provided with a breathing groove (307) inside, and a rainwater collection groove (301) is provided on the top of the top plate (300). A second motor (303) for driving the straight groove plate (304) to rotate is fixedly connected to one side of the top plate (300).
7. The integrated power station based on photovoltaic energy storage according to claim 1, characterized in that: The buffer assembly includes a piston rod (407) fixedly connected to the bottom of the bracket (405). A buffer cylinder (406) is sleeved on the outer surface of the piston rod (407). The piston end of the piston rod (407) is located inside the buffer cylinder (406). A sleeve spring (408) for driving the piston rod (407) to reset is sleeved on the outer surface of the piston rod (407).
8. The integrated power station based on photovoltaic energy storage according to claim 7, characterized in that: The buffer cylinder (406) is provided with a narrowing air cylinder (410) inside, and the piston end of the piston rod (407) is connected to a connecting rod (409) that is rotatably connected to the narrowing air cylinder (410).