A smart ventilation tower based on photovoltaic power generation

Abstract

The application discloses a kind of based on photovoltaic power generation's intelligent ventilation air tower, including steel beam, the bottom of the steel beam is equipped with controller, the arc air tower frame is connected with the top cavity of the top of the supporting plate in the top cavity of the supporting plate by crossbeam, the first elastic telescopic rod is embeddedly installed, the bottom of the supporting plate is equipped with herringbone light panel, the sidewall of the supporting plate and the top cavity of the supporting plate are equipped with positioning assembly between the top cavity of the supporting plate, the protection cylinder is fixed at the inner side position of the top of arc air tower frame by bar, pressure sensor is fixed at the protruding position of the inner wall of the protection cylinder, the water spraying switching assembly is installed at the inner wall of the top of arc air tower frame and the top position of herringbone light panel, and water spraying switching assembly is used to spray hot water on herringbone light panel in snowy weather.The based on photovoltaic power generation's intelligent ventilation air tower, automatically close window in windy weather, automatically spray hot water in snowy weather.

Description

Technical Field

[0001] This invention relates to the field of building ventilation technology, specifically to an intelligent ventilation louver based on photovoltaic power generation. Background Technology

[0002] In buildings such as factories, warehouses, and airport waiting halls, the overall building space is relatively large, often necessitating the installation of ventilation louvers on the roof to improve ventilation capacity in such large spaces. With the development of photovoltaic power generation technology, ventilation louvers with large areas of sunlight can improve the utilization rate of solar energy. Through photovoltaic power generation technology combined with intelligent control, energy-saving power supply and remote control of ventilation louvers can be achieved, greatly improving their performance. However, existing ventilation louvers have the following problems in use:

[0003] The use of ventilation louvers is mostly to cope with strong winds and heavy snow. In windy weather, windows need to be closed in time, and in heavy snow, snow needs to be cleared in time to prevent the louver from becoming unstable due to the weight of the snow. However, existing ventilation louvers are not convenient to reliably solve the problems of closing windows and snow accumulation. On the one hand, the power of photovoltaic power generation is limited and greatly affected by the weather. If sensors and automatic control hardware are used to control the windows automatically, insufficient power is likely to occur. On the other hand, snow can be melted by spraying hot water, but the nozzles are exposed to the outside for a long time, which is prone to clogging. The lack of protection for the nozzles can affect their service life. Manual maintenance on the roof is required, which is quite troublesome.

[0004] To address the aforementioned issues, innovative designs are urgently needed based on existing ventilation louvers. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent ventilation louver based on photovoltaic power generation, in order to solve the problem that existing ventilation louvers mentioned in the background technology are inconvenient and unstable in solving the problems of closing windows and snow accumulation. The technical solution of this invention addresses the problem that the existing technical solutions are too simplistic and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a smart ventilation louver based on photovoltaic power generation, comprising a steel beam, a controller installed at the bottom of the steel beam, and support plates vertically fixed on both sides of the top cavity of the steel beam, an arc-shaped louver frame connected to the support plates by a crossbeam, the bottom of the arc-shaped louver frame being suspended on the steel beam, and a photovoltaic panel fixed at the top of the arc-shaped louver frame.

[0007] It also includes a first elastic telescopic rod, which is embedded in the top cavity of the support plate, and a support plate is fixed to the top of the first elastic telescopic rod. A herringbone-shaped light-transmitting panel is installed at the bottom of the support plate, and the herringbone-shaped light-transmitting panel is located below the top opening of the arc-shaped air vent frame. A positioning component is installed between the side wall of the support plate and the top cavity of the support plate, and the positioning component is used to position the support plate. A ventilation opening is provided through the middle of the support plate, and a motor is fixed on the inner wall of the support plate. The output end of the motor is connected to a drive shaft, and a windproof window is sleeved on the drive shaft, and the windproof window is located inside the ventilation opening.

[0008] A switching transmission assembly is installed at the top of the inner side of the tray, and the switching transmission assembly is used to automatically close the windshield in windy weather.

[0009] A protective cylinder is fixed to the inner side of the top of an arc-shaped air ventilator by a rod. An installation pipe is rotatably installed on the inner side of the top of the arc-shaped air ventilator via a torsion spring. The installation pipe passes through the protective cylinder and is equipped with a nozzle. A water pump is fixed to the inner side of the top of the arc-shaped air ventilator, and the output end of the water pump is connected to the installation pipe via a hose. A baffle is installed at the bottom of the installation pipe via a connecting rod, and the baffle is located inside the bottom opening of the protective cylinder. A pressure sensor is fixed at a protruding position on the inner wall of the protective cylinder, and the pressure sensor is located on the movement trajectory of the connecting rod.

[0010] A water spray switching assembly is installed on the inner wall of the top of the arc-shaped louver and at the top of the herringbone skylight, and the water spray switching assembly is used to spray hot water onto the herringbone skylight during snowy weather.

[0011] Preferably, the positioning component includes a telescopic groove, which is located on the side of the support plate. A positioning rod is connected to the telescopic groove via a second elastic telescopic rod. One end of the positioning rod is located in the positioning groove, which is located on the side wall of the cavity at the top of the support plate. An electromagnet is fixed on the inner wall of the telescopic groove, and the electromagnet is used to magnetically attract the positioning rod when energized.

[0012] Preferably, the outer end of the positioning rod is designed as a right-angled trapezoidal structure, and the inclined surface of the outer end of the positioning rod is set at the lower position. The positioning rod and the positioning groove are in concave-convex fit, and the positioning groove is evenly distributed on the side wall of the cavity at the top of the tray.

[0013] Preferably, the switching transmission assembly includes a rack, which is fixed at the bottom of the herringbone-shaped light-collecting panel, and a gear meshes on the outer side of the rack. The gear is sleeved on the transmission roller, and the transmission roller is rotatably mounted on the inner wall of the support plate. An installation sleeve is fixed on the inner wall of the support plate, and a switching sleeve is rotatably embedded in the installation sleeve. The switching sleeve is not in contact with the transmission roller. A side groove is opened on the outer side of the transmission roller, and a switching rod is connected to the side groove by a spring. The switching rod is located inside the switching sleeve. A switching head is fixed on the inner wall of the switching sleeve, and the switching sleeve is connected to the drive shaft by a belt.

[0014] Preferably, two drive rollers are symmetrically arranged inside the support plate, and the drive rollers are parallel to the drive shaft.

[0015] Preferably, the initial position of the switching rod is retracted into the side groove and does not contact the switching head, and the position of the switching rod after it is thrown out corresponds to the position of the switching head.

[0016] Preferably, the baffle has an arc-shaped cross-section, and the arc length of the baffle is greater than the arc length of the bottom opening of the protective cylinder, and the baffle is located below the nozzle.

[0017] Preferably, the water spray switching assembly includes a mounting plate, which is fixed to the inner wall of the top of the arc-shaped air ventilator. A push rod is slidably mounted on the outer side of the mounting plate through a third elastic telescopic rod. An inclined resistance plate is fixed to the inner end of the push rod, and the resistance plate is located below the opening at the top of the arc-shaped air ventilator. A vertical rod is connected to the outer end of the push rod, and a pull rope is fixed to the top of the vertical rod. The pull rope wraps around the roller and onto the mounting tube. A pull rod is provided below the vertical rod and is fixed to the top of the herringbone-shaped skylight panel.

[0018] Preferably, the outer end of the push rod is designed as a spherical structure that slides within the cavity inside the vertical rod, and the push rod is perpendicular to the vertical rod.

[0019] Preferably, both the pull rod and the vertical rod have hook-shaped structures at their ends, and the ends of the pull rod and the vertical rod are arranged opposite to each other.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. This invention, by setting up a switching transmission component, enables the windshield to close automatically and promptly during windy weather, while the windshield will not close during heavy snow. On the one hand, the windshield closes automatically due to the gravity acting on the herringbone skylight in strong winds; on the other hand, the downward speed of the herringbone skylight in strong winds, under the principle of centrifugal force, causes the transmission roller and switching sleeve to rotate synchronously, thereby enabling the windshield to rotate. By adapting to the different force changes during strong winds and heavy snow, the position of the windshield is automatically adjusted. Again, the rotation of the windshield is achieved by using the principle of gravity, which can effectively distinguish the gravity changes during strong winds and heavy snow, improving autonomy.

[0022] 2. This invention features hot water sprayed from the nozzles to melt snow accumulated on the herringbone-shaped skylight panel, preventing the entire ventilator from collapsing due to gravity and improving safety during heavy snowfall. Furthermore, to prevent the nozzles from being constantly exposed and becoming clogged, the weight of the herringbone-shaped skylight panel is utilized again. When the herringbone-shaped skylight panel moves downward, it can cause the nozzles to rotate outward, and when the herringbone-shaped skylight panel returns to its original position, it can cause the nozzles to rotate back to their original position. The nozzles are protected by protective sleeves and baffles. At the same time, it can also distinguish between strong winds and heavy snow. Under the action of the water spray switching component, the nozzles will not rotate out during strong winds, but will only rotate out during heavy snowfall. The position is detected by a pressure sensor to achieve intelligent water spraying and snow melting operation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the front section structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0025] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point B;

[0026] Figure 4 This is a top view of the windshield structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the switching transmission assembly structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the cross-sectional structure of the transmission roller and switching sleeve of the present invention;

[0029] Figure 7 For the present invention Figure 1 Enlarged structural diagram at point C;

[0030] Figure 8 This is a top view cross-sectional structural diagram of the protective cylinder of the present invention.

[0031] In the diagram: 1. Steel beam; 2. Controller; 3. Support plate; 4. Crossbeam; 5. Arc-shaped air vent frame; 6. Photovoltaic panel; 7. First elastic telescopic rod; 8. Support plate; 81. Positioning component; 811. Telescopic groove; 812. Second elastic telescopic rod; 813. Positioning rod; 814. Positioning groove; 815. Electromagnet; 9. Herringbone skylight; 10. Ventilation opening; 11. Motor; 12. Drive shaft; 13. Windshield; 14. Switching transmission component; 141. Rack; 142. Gear; 143. Drive roller; 144. Mounting sleeve; 145. Switching sleeve; 146. Side groove; 147. Spring; 148. Switching rod; 149. Switching head; 15. Protective sleeve; 16. Mounting pipe; 17. Nozzle; 18. Water pump; 19. Connecting rod; 20. Baffle; 21. Pressure sensor; 22. Spray switching assembly; 221. Mounting plate; 222. Third elastic telescopic rod; 223. Push rod; 224. Resistance plate; 225. Vertical rod; 226. Pull rope; 227. Pull rod. Detailed Implementation

[0032] 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.

[0033] Please see Figure 1-8 This invention provides a technical solution: an intelligent ventilation louver based on photovoltaic power generation, comprising a steel beam 1, a controller 2, a support plate 3, a crossbeam 4, an arc-shaped louver frame 5, a photovoltaic panel 6, a first elastic telescopic rod 7, a support plate 8, a positioning component 81, a telescopic groove 811, a second elastic telescopic rod 812, a positioning rod 813, a positioning groove 814, an electromagnet 815, a herringbone-shaped skylight 9, a ventilation opening 10, a motor 11, a drive shaft 12, a windbreak window 13, and a switching transmission component 14. 141. Rack 142. Gear 143. Drive roller 144. Mounting sleeve 145. Switching sleeve 146. Side groove 147. Spring 148. Switching rod 149. Switching head 140. Protective cylinder 15. Mounting pipe 16. Nozzle 17. Water pump 18. Connecting rod 19. Baffle 20. Pressure sensor 21. Water spray switching assembly 22. Mounting plate 221. Third elastic telescopic rod 222. Push rod 223. Resistance plate 224. Vertical rod 225. Pull rope 226. Pull rod 227. Example 1

[0034] Please see Figure 1 - Figure 6A controller 2 is installed at the bottom of the steel beam 1, and support plates 3 are vertically fixed on both sides of the top cavity of the steel beam 1. An arc-shaped air ventilator 5 is connected to the support plate 3 through a crossbeam 4. The bottom of the arc-shaped air ventilator 5 is suspended on the steel beam 1, and a photovoltaic panel 6 is fixed to the top of the arc-shaped air ventilator 5. A first elastic telescopic rod 7 is embedded in the top cavity of the support plate 3, and a support plate 8 is fixed to the top of the first elastic telescopic rod 7. A herringbone-shaped skylight 9 is installed at the bottom of the support plate 8, and the herringbone-shaped skylight 9 is located below the top opening of the arc-shaped air ventilator 5. The side wall of the support plate 8 A positioning component 81 is installed between the support plate 3 and the top cavity of the support plate 3. The positioning component 81 is used to position the support plate 8. A ventilation opening 10 is provided through the middle of the support plate 3. A motor 11 is fixed on the inner wall of the support plate 3. The output end of the motor 11 is connected to a drive shaft 12. A windproof window 13 is sleeved on the drive shaft 12 and is located inside the ventilation opening 10. A switching transmission component 14 is installed at the top of the inner side of the support plate 3. The switching transmission component 14 is used to automatically close the windproof window 13 in windy weather.

[0035] The positioning component 81 includes a telescopic groove 811, which is located on the side of the support plate 8. A positioning rod 813 is connected to the telescopic groove 811 via a second elastic telescopic rod 812. One end of the positioning rod 813 is located within the positioning groove 814, which is located on the side wall of the top cavity of the support plate 3. An electromagnet 815 is fixed on the inner wall of the telescopic groove 811, and the electromagnet 815 is used to magnetically attract the positioning rod 813 when energized. The outer end of the positioning rod 813 is designed as a right-angled trapezoid, and the inclined surface of the outer end of the positioning rod 813 is located at the bottom. The positioning rod 813 and the positioning groove 814 are in a concave-convex fit. The positioning grooves 814 are evenly distributed on the side wall of the top cavity of the support plate 3. The switching transmission component 14 includes a rack 141, which is fixed to the bottom of the herringbone-shaped light-transmitting panel 9. A gear 142 meshes with the outer side of the rack 141. A 142 sleeve is mounted on a transmission roller 143, and the transmission roller 143 is rotatably mounted on the inner wall of a support plate 3. A mounting sleeve 144 is fixed on the inner wall of the support plate 3, and a switching sleeve 145 is rotatably mounted embedded in the mounting sleeve 144. The switching sleeve 145 is mounted on the transmission roller 143 without contact. A side groove 146 is provided on the outer side of the transmission roller 143, and a switching rod 148 is connected to the side groove 146 by a spring 147. The switching rod 148 is located inside the switching sleeve 145. A switching head 149 is fixed on the inner wall of the switching sleeve 145, and the switching sleeve 145 is connected to the drive shaft 12 by a belt. Two transmission rollers 143 are symmetrically arranged in the support plate 3, and the transmission rollers 143 are parallel to the drive shaft 12. The initial position of the switching rod 148 is retracted into the side groove 146 and does not contact the switching head 149. After the switching rod 148 is thrown out, it corresponds to the position of the switching head 149.

[0036] In windy weather, the herringbone skylight 9 is blown down rapidly, which drives the gear 142 to rotate quickly. Under the action of centrifugal force, the rotation of the gear 142 throws out the switching rod 148, which drives the switching sleeve 145 to rotate through contact with the switching head 149, so that the wind deflector 13 closes automatically. In snowy weather, the herringbone skylight 9 is pressed down slowly. At this time, the wind deflector 13 will not close and ventilation will continue. Example 2

[0037] Please see Figure 1 and Figure 7 - Figure 8 The protective cylinder 15 is fixed to the inner side of the top of the arc-shaped air ventilator 5 by a rod. An installation pipe 16 is rotatably installed on the inner side of the top of the arc-shaped air ventilator 5 by a torsion spring. The installation pipe 16 passes through the protective cylinder 15 and is equipped with a nozzle 17. A water pump 18 is fixed to the inner side of the top of the arc-shaped air ventilator 5, and the output end of the water pump 18 is connected to the installation pipe 16 through a hose. A baffle 20 is installed at the bottom of the installation pipe 16 through a connecting rod 19. The baffle 20 is located inside the bottom opening of the protective cylinder 15. A pressure sensor 21 is fixed at the protruding part of the inner wall of the protective cylinder 15 and is located on the movement trajectory of the connecting rod 19. A water spray switching assembly 22 is installed on the inner wall of the top of the arc-shaped air ventilator 5 and at the top of the herringbone skylight 9. The water spray switching assembly 22 is used to spray hot water onto the herringbone skylight 9 during snowy weather.

[0038] The baffle 20 has an arc-shaped cross-section, and the arc length of the baffle 20 is greater than the arc length of the bottom opening of the protective cylinder 15. The baffle 20 is located below the nozzle 17. The water spray switching assembly 22 includes a mounting plate 221, which is fixed to the inner wall of the top of the arc-shaped air vent frame 5. A push rod 223 is slidably mounted on the outer side of the mounting plate 221 through a third elastic telescopic rod 222. An inclined resistance plate 224 is fixed to the inner end of the push rod 223, and the resistance plate 224 is located below the top opening of the arc-shaped air vent frame 5. The outer end of the push rod 223 is connected to a vertical rod 225, and a pull rope 226 is fixed to the top of the vertical rod 225. The pull rope 226 wraps around the roller shaft and is wound around the mounting tube 16. A pull rod 227 is provided below the vertical rod 225 and is fixed to the top of the herringbone-shaped light-transmitting panel 9. The outer end of the push rod 223 is designed as a spherical structure that limits sliding within the inner cavity of the vertical rod 225, and the push rod 223 is perpendicular to the vertical rod 225. The ends of the pull rod 227 and the vertical rod 225 are both provided with hook-shaped structures, and the ends of the pull rod 227 and the vertical rod 225 are arranged opposite each other.

[0039] In windy weather, the resistance plate 224 moves under force, pushing the vertical rod 225 to move via the push rod 223. At this time, the downward movement of the herringbone skylight 9 will not pull the vertical rod 225 downward, thus the baffle 20 will not open and the nozzle 17 will not rotate out, protecting the nozzle 17. In snowy weather, the herringbone skylight 9 moves downward, pulling the vertical rod 225 downward via the pull rod 227, rotating the nozzle 17 out. The pressure sensor 21 intelligently senses this, and the nozzle 17 sprays hot water onto the herringbone skylight 9 to melt the snow.

[0040] Working principle: When using this photovoltaic-based intelligent ventilation louver, such as Figure 1 - Figure 8 In this system, photovoltaic panels 6 generate and supply electricity. Controller 2 controls the rotation of motor 11, which in turn drives the windshield 13 via drive shaft 12, opening and closing the ventilation opening 10. Ventilation occurs through openings on the steel beam 1, the ventilation opening 10, the gap between the support plate 3 and the arched air vent 5, and the opening at the top of the arched air vent 5. During rainy weather, rainwater falls along the herringbone-shaped skylight 9, through the interior of the arched air vent 5, and onto the steel beam 1, where it is absorbed by the support plate. 3. Blocking allows direct flow, achieving waterproofing and ventilation. In windy weather, the herringbone-shaped skylight 9 is rapidly lowered under force, causing the rack 141 to drive the gear 142 to rotate rapidly. The gear 142 then drives the transmission roller 143 to rotate rapidly. Under centrifugal force, the switching rod 148 extends out of the side groove 146. As the transmission roller 143 rotates, the switching rod 148 contacts the switching head 149, which can drive the switching sleeve 145 to rotate within the mounting sleeve 144. The switching sleeve 145 drives the drive shaft via a belt. Rotating 12 closes the windshield 13, preventing strong winds from entering the room through the vent 10. Simultaneously, the downward movement of the herringbone skylight 9 causes the support plate 8 to move downward. The inclined surface of the positioning rod 813 contracts into the telescopic groove 811 under force and is ejected through the second elastic telescopic rod 812, so that the positioning rod 813 is stuck in the positioning groove 814, which can fix the position of the support plate 8 and prevent the herringbone skylight 9 from resetting. This maintains the stability of the herringbone skylight 9 and the windshield 13. After the strong wind ends, the controller 2 controls the electromagnet 815 to be energized, attracting the positioning rod 813 and causing it to disengage from the positioning groove 814. Under the action of the first elastic telescopic rod 7, the support plate 8 causes the herringbone skylight 9 to reset. In heavy snow, the gravity of the snow causes the herringbone skylight 9 to move downward slowly. At this time, the gear 142 rotates slowly and will not drive the drive shaft 12 and the windshield 13 to rotate, thus maintaining ventilation.

[0041] Similarly, during heavy snow, the resistance plate 224 will not move. When the herringbone skylight 9 moves down, causing the pull rod 227 to move down, the pull rod 227 can drive the vertical rod 225 down. The vertical rod 225 pulls the mounting tube 16 to rotate via the pull rope 226. On one hand, the mounting tube 16 drives the baffle 20 to rotate via the connecting rod 19, causing the baffle 20 to separate from the bottom of the protective cylinder 15. At the same time, the connecting rod 19 will contact the pressure sensor 21, causing the pressure sensor 21 to sense a signal. On the other hand, the mounting tube 16 drives the nozzle 17 to rotate, exposing the position of the nozzle 17 and facing the direction of the herringbone skylight 9. At this time, the pressure sensor 21 transmits the signal to the controller 2. The controller 2 controls the operation of the water pump 18, which sprays hot water through the installation pipe 16 and the nozzle 17 via a pre-set pipeline to melt the snow on the herringbone skylight 9, preventing the weight of the snow from affecting the entire louver. In windy weather, the resistance plate 224 will be blown outward, causing the resistance plate 224 to move the push rod 223. The push rod 223 will move the vertical rod 225, causing the vertical rod 225 to separate from the pull rod 227. At this time, the downward movement of the herringbone skylight 9 will not cause the vertical rod 225 to move downward, and thus the installation pipe 16 and the nozzle 17 will not rotate, which can effectively protect the nozzle 17 and prevent the nozzle 17 from being blocked due to long-term exposure to the outside.

[0042] Contents not described in detail in this specification are prior art known to those skilled in the art. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Terms such as "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail" indicate orientations or positional relationships based on the accompanying drawings, and are used only for ease of description and simplification, not to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An intelligent ventilation cornice based on photovoltaic power generation, comprising a steel beam (1), a controller (2) is installed at the bottom of the steel beam (1), vertical supporting plates (3) are fixed on both sides of the top cavity of the steel beam (1), arc-shaped cornice frames (5) are connected to the supporting plates (3) through cross beams (4), the arc-shaped cornice frames (5) are suspended on the steel beam (1), and photovoltaic panels (6) are fixed at the top of the arc-shaped cornice frames (5); a first elastic telescopic rod (7) is embeddedly installed in the top cavity of the supporting plate (3), a supporting plate (8) is fixed at the top of the first elastic telescopic rod (7), a herringbone light plate (9) is installed at the bottom of the supporting plate (8), the herringbone light plate (9) is located below the opening at the top of the arc-shaped cornice frame (5), a positioning assembly (81) is installed between the sidewall of the supporting plate (8) and the top cavity of the supporting plate (3), the positioning assembly (81) is used for positioning the position of the supporting plate (8), a ventilation opening (10) is formed in the middle of the supporting plate (3), an electric motor (11) is fixed on the inner wall of the supporting plate (3), an output shaft (12) of the electric motor (11) is connected with a windscreen (13), and the windscreen (13) is located on the inner side of the ventilation opening (10); characterized in that a switching transmission assembly (14) is installed at the top of the inner side of the supporting plate (3), and the switching transmission assembly (14) is used for automatically closing the windscreen (13) in strong wind weather; a protection cylinder (15) is fixed at the inner side of the top of the arc-shaped cornice frame (5) through a rod, an installation pipe (16) is rotatably installed at the inner side of the top of the arc-shaped cornice frame (5) through a torsion spring, the installation pipe (16) is arranged in the protection cylinder (15), a spray head (17) is arranged on the installation pipe (16), a water pump (18) is fixed at the inner side of the top of the arc-shaped cornice frame (5), an output end of the water pump (18) is connected with the installation pipe (16) through a hose, a baffle (20) is installed at the bottom of the installation pipe (16) through a connecting rod (19), the baffle (20) is located inside the opening at the bottom of the protection cylinder (15), a pressure sensor (21) is fixed at the protruding position of the inner wall of the protection cylinder (15), and the pressure sensor (21) is located on the movement track of the connecting rod (19); a water spraying switching assembly (22) is installed at the inner wall of the top of the arc-shaped cornice frame (5) and the top of the herringbone light plate (9), and the water spraying switching assembly (22) is used for spraying hot water on the herringbone light plate (9) in snowy weather. ​ 2. The intelligent ventilation air tower based on photovoltaic power generation according to claim 1, characterized in that: The positioning assembly (81) comprises a telescopic slot (811) which is arranged at the side of the supporting plate (8), a positioning rod (813) is connected in the telescopic slot (811) by a second elastic telescopic rod (812), one end of the positioning rod (813) is located in a positioning slot (814) which is arranged on the side wall of the top cavity of the supporting plate (3), and an electromagnet (815) is fixed on the inner wall of the telescopic slot (811) and used for magnetically attracting the positioning rod (813) after being electrified.

3. The intelligent ventilation lantern based on photovoltaic power generation according to claim 2, characterized in that: The outer end of the positioning rod (813) is designed as a right trapezoidal structure, the outer end inclined surface of the positioning rod (813) is arranged at the lower position, and the positioning rod (813) is matched with the positioning slot (814).

4. The intelligent ventilation cornice based on photovoltaic power generation according to claim 1, characterized in that: The switching transmission assembly (14) comprises a rack (141) which is fixed at the bottom of the chevron-shaped light panel (9), the outer side of the rack (141) is engaged with a gear (142), the gear (142) is sleeved on a transmission roller (143), the transmission roller (143) is limitingly and rotatably installed on the inner wall of the supporting plate (3), the inner wall of the supporting plate (3) is fixed with a mounting sleeve (144), the mounting sleeve (144) is embeddedly and rotatably installed with a switching sleeve (145), the switching sleeve (145) is sleeved on the transmission roller (143) without contact, the outer side of the transmission roller (143) is provided with a side slot (146), the side slot (146) is connected with a switching rod (148) by a spring (147), the switching rod (148) is located in the switching sleeve (145), the inner wall of the switching sleeve (145) is fixed with a switching head (149), and the switching sleeve (145) is connected with the driving shaft (12) by a belt.

5. The intelligent ventilation cornice based on photovoltaic power generation according to claim 4, characterized in that: The transmission roller (143) is symmetrically arranged in the supporting plate (3), and the transmission roller (143) is parallel to the driving shaft (12).

6. The intelligent ventilation cornice based on photovoltaic power generation according to claim 4, characterized in that: The initial position of the switching rod (148) is in the side slot (146) and does not contact the switching head (149), and the switching rod (148) is thrown out and corresponds to the position of the switching head (149).

7. The intelligent ventilation lantern based on photovoltaic power generation according to claim 1, characterized in that: The normal section of the baffle (20) is designed as an arc structure, the arc length of the baffle (20) is greater than the arc length of the opening at the bottom of the protection cylinder (15), and the baffle (20) is located below the nozzle (17).

8. The intelligent ventilation lantern based on photovoltaic power generation according to claim 1, characterized in that: The water spraying switching assembly (22) comprises a mounting plate (221) fixed on the inner wall of the top of the arc-shaped air balcony frame (5), and the outer side of the mounting plate (221) is slidably provided with a push rod (223) penetrating through a third elastic telescopic rod (222), the inner end of the push rod (223) is fixedly provided with a resistance plate (224) arranged obliquely, the resistance plate (224) is located below the opening at the top of the arc-shaped air balcony frame (5), the outer end of the push rod (223) is connected with a vertical rod (225), the top of the vertical rod (225) is fixedly provided with a pull rope (226), the pull rope (226) is wound on the mounting pipe (16) around a roller shaft, and the lower side of the vertical rod (225) is provided with a pull rod (227) fixed on the top of the herringbone light collecting plate (9).

9. The intelligent ventilation cornice based on photovoltaic power generation according to claim 8, characterized in that: The outer end of the push rod (223) is designed as a spherical structure to limit sliding in the inner cavity of the vertical rod (225), and the push rod (223) is perpendicular to the vertical rod (225).

10. The intelligent ventilation cornice based on photovoltaic power generation according to claim 8, characterized in that: The end portions of the pull rod (227) and the vertical rod (225) are provided with hook-shaped structures, and the end portions of the pull rod (227) and the vertical rod (225) are oppositely arranged.

Images