Vehicle-mounted wind power generation device and method

Abstract

The vehicle-mounted wind power generation device comprises a power generation cylinder, and the front side of the power generation cylinder is fixedly connected with a wind collection cover; the wind driving mechanism comprises a rotating shaft rotationally connected to the inner top of the power generation barrel, a plurality of blades are fixedly connected to the outer side of the lower end of the rotating shaft, an air outlet is formed in the rear side wall of the left space of the power generation barrel, and an air inlet is formed in the front side wall of the power generation barrel; and the filtering mechanism comprises a rotating rod rotationally connected to the inner bottom of the power generation cylinder, the upper end of the rotating rod is fixedly connected with a rotating disc, the lower end of the rotating shaft is rotationally connected with the upper end of the rotating disc, and the upper end of the rotating disc is fixedly connected with an annular net. The invention further discloses a vehicle-mounted wind power generation method. In the actual use process of the device, the filtering part can be automatically cleaned, in this way, a user does not need to clean the device regularly, in addition, the blade part can be efficiently cleaned, and the actual power generation efficiency is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of wind energy recovery, and in particular to a vehicle-mounted wind energy power generation device and method. Background Art

[0002] New energy electric vehicles use electricity as energy, batteries as energy storage components, and are driven by electronic control systems. Compared with traditional fuel vehicles, new energy electric vehicles have the advantages of energy saving, low noise, and low vibration. However, their endurance and the degree of perfection of charging facilities have always been the key factors restricting their development. Therefore, how to improve the endurance of electric vehicles and improve charging conditions is of great significance to the development of the electric vehicle industry. Some vehicles on the market now use on-board wind power generation devices to increase the car's mileage. However, during use, since the airflow is mixed with dust and large particles of impurities, such as mosquitoes, these impurities enter the generator. If they accumulate too much, it is easy to affect the rotation efficiency of the fan part. Therefore, a filter is generally set at the air inlet to block larger particles. However, after long-term use, more dust and impurities will accumulate on the filter, resulting in increased wind resistance, thereby reducing the utilization rate of wind energy. In addition, some smaller dust may still enter the generator, and due to the static electricity generated by the high-speed rotation of the fan blades, these fine dust will be adsorbed on the surface of the fan blades, increasing the actual rotation load, thereby reducing the power generation efficiency. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a vehicle-mounted wind power generation device. During actual use, the filter part of the device can be automatically cleaned. In this way, there is no need for the user to clean it regularly. In addition, the blade part can also be efficiently cleaned to ensure the actual power generation efficiency.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A vehicle-mounted wind energy power generation device comprises a generator cylinder, a front side of which is fixedly connected to a wind collecting hood; a wind driving mechanism, the wind driving mechanism comprises a rotating shaft rotatably connected to the top of the generator cylinder, a plurality of blades are fixedly connected to the outer side of the lower end of the rotating shaft, an air outlet is provided on the rear side wall of the left space of the generator cylinder, and an air inlet is provided on the front side wall of the generator cylinder; a filtering mechanism, the filtering mechanism comprises a rotating rod rotatably connected to the bottom of the generator cylinder, the upper end of the rotating rod is fixedly connected to a rotating disk, the lower end of the rotating shaft is rotatably connected to the upper end of the rotating disk, the upper end of the rotating disk is fixedly connected to an annular net, the outer side of the annular net is in contact with the inner wall of the generator cylinder and is slidably connected; a rotating mechanism, the rotating mechanism cooperates with the filtering mechanism to clear and clean the annular net; a flushing mechanism, the flushing mechanism is used to flush the blades to avoid dust accumulation on the blades.

[0005] Preferably, the rotating mechanism includes a rectangular box fixedly connected under the generator cylinder, a rectangular groove is opened on the right side of the rectangular box, a magnetic slide that can slide left and right is arranged in the rectangular groove, and the left side of the magnetic slide is elastically connected to the left inner wall of the rectangular groove through a first spring.

[0006] Preferably, an electromagnet is installed on the left side of the rectangular box, and when energized, the electromagnet repels the adjacent surface of the magnetic slide with the same charge. The lower end of the rotating rod passes through the inner bottom of the generator cylinder and is equipped with a gear through a one-way bearing. A rack is fixedly connected to the right side of the magnetic slide, and the rack is meshed with the gear.

[0007] Preferably, the upper end of the generator cylinder is fixedly connected with a first power connection ring and a second power connection ring, the second power connection ring is located on the outside of the first power connection ring, and a rectangular bar is fixedly connected to the left side of the upper end part of the rotating shaft, a slide groove is provided on the left side of the rectangular bar, a conductive strip that can slide left and right is provided in the slide groove, and the right side of the conductive strip is elastically connected to the right inner wall of the slide groove through a second spring, and the first power connection ring and the second power connection ring jointly control the opening and closing of the electromagnet.

[0008] Preferably, the flushing mechanism comprises a piston cylinder fixedly connected to the lower end of the generator cylinder, a piston plate which can slide left and right is arranged in the piston cylinder, and the right end of the rack extends to the inner wall of the piston cylinder and is fixedly connected to the left side of the piston plate.

[0009] Preferably, a hollow bar is fixedly connected to the inner top of the generator cylinder, a plurality of discharge ports are provided at the inner bottom of the hollow bar, a first one-way tube and a second one-way tube are connected to the right side space of the piston cylinder, the other end of the first one-way tube is connected to two branch tubes, the other ends of the two branch tubes extend to the inside of the hollow bar, an atomizing nozzle is installed at the lower end of the branch tube on the left, an electromagnetic valve is installed in the branch tube on the right, power connection strips are embedded in the inner bottom and inner top of the right side space of the rectangular groove, and the two power connection strips are used together to control the electromagnetic valve.

[0010] Preferably, a one-way valve is installed inside the first one-way tube and the second one-way tube. The one-way valve inside the second one-way tube flows in a one-way direction from the outside to the right side space of the piston cylinder, and the one-way valve inside the first one-way tube flows in a one-way direction from the right side space of the piston cylinder to the two branch tubes.

[0011] The present invention also discloses a vehicle-mounted wind energy power generation method, which uses the above-mentioned power generation device and includes the following steps: The first step: install the generator into the bottom of the front warning cover of the pure electric vehicle, and connect the upper end of the rotating shaft to the input shaft of the generator; Step 2: When the car is driving, relative airflow will be generated. After passing through the wind collecting cover, the airflow enters the generator cylinder from the air inlet and is finally discharged from the air outlet. After the airflow rushes into the generator cylinder, it will act on the blades on the left side, causing the whole formed by multiple blades and the shaft to rotate, thereby causing the shaft to rotate. The rotation of the shaft will cause the generator to rotate and generate electricity. Step 3: When the vehicle speed reaches the set value, the annular net will rotate, so that the part of the annular net with more large impurities will rotate to the rear. When the gas flows out from the air outlet, the part of the annular net with large impurities will be back-blown. Step 4: During the back-blowing operation, the blades will also be flushed to improve the overall power generation efficiency.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. By converting the relative airflow generated during the vehicle's driving into electrical energy to charge the vehicle's battery, the vehicle's mileage is increased, dependence on traditional power sources is reduced, and overall energy efficiency is improved.

[0013] 2. The setting of the ring net can effectively intercept large particles of dust and other impurities, prevent these substances from entering the generator cylinder, prevent mechanical failure or performance degradation caused by foreign matter, and ensure the long-term stable operation of the generator.

[0014] 3. When the vehicle speed reaches a certain level, the annular net will rotate 90 degrees. When the high-speed gas flows out from the air outlet, it will back-blow the annular net part with large particles of impurities, achieving the effect of automatic cleaning and dredging. The impurities blown away will be directly discharged to the outside without secondary adhesion.

[0015] 4. During the rotation of the annular net, the top of the generator cylinder will first spray water, and then directly spray water. In this way, static electricity can be removed first and then rinsed. While ensuring efficient cleaning of the blades, the use of water resources is saved.

[0016] 5. There is a lot of water on the blades when they are washed, and they are still rotating at high speed, so part of the water on them will be rotated by centrifugal force and move away from the rotating shaft, and they are washed in the left space, so as the blades here rotate, a lot of water on them will be thrown out at the air outlet, and these water bodies will have a greater impact. By using the impact of water from the inside to the outside, the cleaning effect of the annular net is further improved.

[0017] In summary, during use, the device can recycle wind energy to improve the vehicle's endurance. In addition, the power generation part can perform efficient self-cleaning to ensure its continuous operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a vehicle-mounted wind power generation device proposed by the present invention; Figure 2 for Figure 1 Schematic diagram from top view; Figure 3 for Figure 1 A schematic cross-sectional view in the up and down directions; Figure 4 for Figure 1 Schematic diagram after removing the wind hood; Figure 5 for Figure 4 A schematic cross-sectional view in the front-to-back direction; Figure 6 A cross-sectional schematic diagram of the connection between the rotating shaft, the rectangular bar and the conductive bar; Figure 7 This is a schematic diagram of the connection between the rotating disk and the ring network.

[0019] In the figure: 1 generator, 2 wind collecting cover, 3 rotating shaft, 4 first power connection ring, 5 second power connection ring, 6 rectangular box, 7 electromagnet, 8 rotating rod, 9 gear, 10 piston cylinder, 11 first one-way pipe, 12 second one-way pipe, 13 air outlet, 14 blade, 15 annular net, 16 branch pipe, 17 solenoid valve, 18 hollow bar, 19 atomizing nozzle, 20 discharge port, 21 rectangular groove, 22 first spring, 23 magnetic slide plate, 24 power connection bar, 25 rack, 26 piston plate, 27 connecting rod, 28 rectangular bar, 29 conductive bar, 30 slide groove, 31 second spring, 32 air inlet. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] Reference Figure 1-Figure 7 A vehicle-mounted wind power generation device includes a generator tube 1, a wind collecting cover 2 is fixedly connected to the front side of the generator tube 1, and the generator tube 1 and the wind collecting cover 2 are installed at the bottom of the front warning cover of a pure electric vehicle.

[0022] As an embodiment of the present invention, it also includes a wind drive mechanism, which includes a rotating shaft 3 rotatably connected to the top of the generator tube 1. The upper end of the rotating shaft 3 is further connected to the input end of an external generator. The rotation of the rotating shaft 3 drives the generator to generate electricity, thereby realizing wind power generation. A plurality of blades 14 are fixedly connected to the outer side of the lower end of the rotating shaft 3. An air outlet 13 is provided on the rear side wall of the left side space of the generator tube 1, and an air inlet 32 ​​is provided on the front side wall of the generator tube 1.

[0023] As an embodiment of the present invention, it also includes a filtering mechanism, which includes a rotating rod 8 rotatably connected to the bottom of the generator tube 1, the upper end of the rotating rod 8 is fixedly connected to the rotating disk, the lower end of the rotating shaft 3 is rotatably connected to the upper end of the rotating disk, and the upper end of the rotating disk is fixedly connected to an annular net 15, the outer side of the annular net 15 is in contact with the inner wall of the generator tube 1 and is slidably connected, and four grooves are provided on the annular net 15 for corresponding to the air inlet 32 ​​and the air outlet 13.

[0024] As an embodiment of the present invention, it also includes a rotating mechanism, which cooperates with the filtering mechanism to dredge and clean the annular net 15. The rotating mechanism includes a rectangular box 6 fixedly connected under the generator tube 1. A rectangular groove 21 is opened on the right side of the rectangular box 6. A magnetic slide 23 that can slide left and right is arranged in the rectangular groove 21. The magnetic slide 23 is magnetic and conductive at the same time. The left side of the magnetic slide 23 is elastically connected to the left inner wall of the rectangular groove 21 through a first spring 22. An electromagnet 7 is installed on the left side of the rectangular box 6. After the electromagnet 7 is energized, it repels the adjacent surface of the magnetic slide 23 with the same sex. The lower end of the rotating rod 8 passes through the inner bottom of the generator tube 1 and is installed with a gear 9 through a one-way bearing. A rack 25 is fixedly connected to the right side of the magnetic slide 23. The rack 25 is meshed with the gear 9. When the rack 25 moves to the right, the rotating rod 8 will be driven to rotate through the gear 9, and when the gear 9 moves to the left, the rotating rod 8 will not be driven to rotate. The electromagnet 7 here adopts a high-power electromagnet, which can generate greater magnetism when energized.

[0025] As an embodiment of the present invention, the upper end of the generator tube 1 is fixedly connected with a first power connection ring 4 and a second power connection ring 5, and the second power connection ring 5 is located on the outside of the first power connection ring 4. A rectangular bar 28 is fixedly connected to the left side of the upper end portion of the rotating shaft 3, and a slide groove 30 is opened on the left side of the rectangular bar 28. A conductive strip 29 that can slide left and right is arranged in the slide groove 30, and the right side of the conductive strip 29 is elastically connected to the right inner wall of the slide groove 30 through a second spring 31. The first power connection ring 4 and the second power connection ring 5 jointly control the opening and closing of the electromagnet 7, and also include a first external power supply, whose positive pole is electrically connected to the first power connection ring 4, and its negative pole, the electromagnet 7 and the second power connection ring 5 are all electrically connected. In addition, a control switch for a controller and a control switch connected to the above-mentioned electromagnet 7 circuit is also provided, which is controlled by a PLC program in conjunction with a current sensor. After each power-on of the electromagnet 7, the control switch will be powered off one minute later, and will not be closed within 2-3 hours to avoid the occurrence of excessive cleaning frequency.

[0026] As an embodiment of the present invention, it also includes a flushing mechanism, which is used to flush the blades 14 to avoid dust accumulation on the blades 14. The flushing mechanism includes a piston cylinder 10 fixedly connected to the lower end of the generator cylinder 1, and a piston plate 26 that can slide left and right is arranged in the piston cylinder 10. The right end of the rack 25 extends to the inner wall of the piston cylinder 10 and is fixedly connected to the left side of the piston plate 26. The inner top of the generator cylinder 1 is fixedly connected with a hollow bar 18, and the inner bottom of the hollow bar 18 is provided with a plurality of discharge ports 20. The right side space of the piston cylinder 10 is connected with a first one-way pipe 11 and a second one-way pipe 12. 2. The other end of the first one-way tube 11 is connected to two branch pipes 16, and the other ends of the two branch pipes 16 extend to the inside of the hollow bar 18. The lower end of the branch pipe 16 on the left is equipped with an atomizing nozzle 19, and the branch pipe 16 on the right is equipped with an electromagnetic valve 17. The bottom and the top of the right side space of the rectangular groove 21 are embedded with power strips 24, and the two power strips 24 are used to control the electromagnetic valve 17. A second external power supply is also included. The positive pole of the second external power supply is electrically connected to the upper power strip 24, and the negative pole of the second external power supply, the electromagnetic valve 17 and the lower power strip 24 are electrically connected.

[0027] As an embodiment of the present invention, one-way valves are installed inside the first one-way tube 11 and the second one-way tube 12. The one-way valve inside the second one-way tube 12 flows in a one-way direction from the outside to the right side space of the piston cylinder 10. The one-way valve inside the first one-way tube 11 flows in a one-way direction from the right side space of the piston cylinder 10 to the two branch pipes 16. Furthermore, the other end of the second one-way tube 12 is connected to the outside and the water tank of the car.

[0028] In the present invention, when it is used, the generator cylinder 1 and the wind collecting cover 2 are installed at the bottom of the front warning cover of the pure electric vehicle, and the upper end of the rotating shaft 3 is connected to the generator input shaft. The generator part is used to power the battery of the car. When the car is running, a large relative airflow will be generated. After the airflow passes through the wind collecting cover 2, it enters the inside of the generator cylinder 1 from the air inlet 32 ​​and is finally discharged from the air outlet 13. After the airflow rushes into the generator cylinder 1, it will act on the blades 14 on the left side, so that the whole formed by the multiple blades 14 and the rotating shaft 3 rotates, and then the rotating shaft 3 rotates. The rotation of the rotating shaft 3 will rotate the generator to generate electricity, realize energy recycling, and improve energy utilization. In the above-mentioned wind energy recovery process, the ring net 15 can be used to intercept large dust particles and impurities, thereby preventing large dust particles and impurities from entering the generator cylinder 1 and affecting the normal operation of power generation; When the running speed of the car reaches a certain level, the overall rotation speed formed by the blades 14 and the rotating shaft 3 is relatively fast. At this time, the centrifugal force generated is relatively large, and the distance between the conductive strip 29 and the rotating shaft 3 is extremely large. It can contact the first power connection ring 4 and the second power connection ring 5 at the same time, and the electromagnet 7 is energized. When the electromagnet 7 is energized, the repulsive force is used to move the magnetic slide plate 23 to the right, driving the rack 25 to the right. The right movement of the rack 25 will drive the gear 9 to rotate, and then the rotating rod 8 will rotate, and finally rotate 90°, so that the part of the annular net 15 with more large particles of impurities adhered to it rotates to the rear. In this way, when the high-speed gas flow is discharged from the air outlet 13, the part of the annular net 15 with large particles of impurities adhered to it will be backblown, so as to achieve the effect of automatic cleaning and dredging, and the impurities blown away will be directly discharged to the outside without secondary adhesion. In the above process, the rightward movement of the rack 25 will also drive the piston plate 26 to move rightward, and the water in the piston cylinder 10 will be pressed out through the first one-way pipe 11. In the early stage of drainage, since the magnetic slide plate 23 does not contact the power strip 24, the solenoid valve 17 is in a power-off state at this time, and the water is pressed out from the left branch pipe 16, that is, from the atomizing nozzle 19, which will produce atomized water. After the atomized water enters the inside of the generator cylinder 1, it will fully contact the rotating blades 14, and the atomized water has a humidification effect. Only a small amount of water is needed to fully humidify the blades 14 and remove the static electricity of the blades 14. When the magnetic slide plate 23 contacts the power strip 24 (at this time, the rack 25 just moves right to the tooth on it), the water will be pressed out from the left branch pipe 16, that is, from the atomizing nozzle 19, and atomized water will be produced. After the atomized water enters the inside of the generator cylinder 1, it will fully contact the rotating blades 14, and the atomized water has a humidification effect. Only a small amount of water is needed to fully humidify the blades 14 and remove the static electricity of the blades 14. The ring net 15 does not mesh with the gear 9, and even if the rack 25 continues to move, the ring net 15 does not rotate anymore). The solenoid valve 17 is energized and turned on. Since the spray resistance of the atomizing nozzle 19 is relatively large, the water will basically be sprayed out from the right branch pipe 16, and finally discharged from the multiple discharge ports 20. The water will impact on the rotating blades 14 to wash them. Since the static electricity on the blades 14 has been basically eliminated (it takes a certain amount of time to release the static electricity, and it takes a certain amount of time even if it is directly flushed with water), the fine dust adhering to the blades 14 can be easily washed off by water impact at this time (compared with direct water flushing, it saves more water resources while ensuring the cleaning effect), so as to clean the blades 14; Since there is a lot of water on the blade 14 when it is washed, and it is still rotating at a high speed, part of the water on it will be rotated by centrifugal force and move away from the rotating shaft 3, and it is washed in the left space, so as the blade 14 rotates here (clockwise from a top view), a lot of water on it is thrown out at the air outlet 13, and these water bodies will have a greater impact. The impact of the water from the inside to the outside further improves the cleaning effect of the annular net 15; It should be noted that after a single cleaning is completed, after a period of time, the electromagnet 7 is powered off, and under the elastic action of the first spring 22, the magnetic slide 23, the rack 25 and the piston plate 26 will all move back to their initial positions, and the second one-way tube 12 can be used to complete the water pumping operation, which is convenient for the next cleaning.

[0029] The present invention also discloses a vehicle-mounted wind energy power generation method, which uses the above-mentioned power generation device and includes the following steps: The first step: installing the generator into the bottom of the front warning cover of the pure electric vehicle, and connecting the upper end of the rotating shaft 3 to the input shaft of the generator; Step 2: When the car is running, a relative airflow will be generated. After passing through the wind collecting cover 2, the airflow enters the inside of the generator tube 1 from the air inlet 32 ​​and is finally discharged from the air outlet 13. After the airflow rushes into the generator tube 1, it acts on the blades 14 on the left side, causing the whole formed by the multiple blades 14 and the rotating shaft 3 to rotate, thereby causing the rotating shaft 3 to rotate. The rotation of the rotating shaft 3 will cause the generator to rotate to generate electricity; Step 3: When the vehicle speed reaches the set value, the annular net 15 will rotate, so that the part of the annular net 15 with more large impurities adhered to it will rotate to the rear, so that when the gas flows out from the air outlet 13, the part of the annular net 15 with large impurities adhered to it will be back-blown; Step 4: When the back-blowing operation is performed, the blades 14 are also flushed to improve the overall power generation efficiency.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vehicle-mounted wind power generation device, characterized in that: include: A power generating cylinder (1), wherein a wind collecting cover (2) is fixedly connected to the front side of the power generating cylinder (1); A wind drive mechanism, the wind drive mechanism comprising a rotating shaft (3) rotatably connected to the top of the generator cylinder (1), a plurality of blades (14) being fixedly connected to the outer side of the lower end of the rotating shaft (3), an air outlet (13) being provided on the rear side wall of the left side space of the generator cylinder (1), and an air inlet (32) being provided on the front side wall of the generator cylinder (1); A filtering mechanism, the filtering mechanism comprising a rotating rod (8) rotatably connected to the bottom of the power generation cylinder (1), the upper end of the rotating rod (8) being fixedly connected to a rotating disk, the lower end of the rotating shaft (3) being rotatably connected to the upper end of the rotating disk, the upper end of the rotating disk being fixedly connected to an annular net (15), the outer side of the annular net (15) being in contact with the inner wall of the power generation cylinder (1) and being slidably connected thereto; A rotating mechanism, the rotating mechanism cooperates with the filtering mechanism to clear and clean the annular net (15); A flushing mechanism, wherein the flushing mechanism is used to flush the blades (14) to prevent dust from accumulating on the blades (14).

2. A vehicle-mounted wind power generation device according to claim 1, characterized in that: The rotating mechanism comprises a rectangular box (6) fixedly connected under the power generating cylinder (1), a rectangular groove (21) is provided on the right side of the rectangular box (6), a magnetic slide plate (23) which can slide left and right is arranged in the rectangular groove (21), and the left side of the magnetic slide plate (23) is elastically connected to the left inner wall of the rectangular groove (21) via a first spring (22).

3. A vehicle-mounted wind power generation device according to claim 2, characterized in that: An electromagnet (7) is installed on the left side of the rectangular box (6). When the electromagnet (7) is energized, it repels the adjacent surface of the magnetic slide plate (23) in the same manner. The lower end of the rotating rod (8) passes through the inner bottom of the generator cylinder (1) and is installed with a gear (9) via a one-way bearing. A rack (25) is fixedly connected to the right side of the magnetic slide plate (23), and the rack (25) meshes with the gear (9).

4. A vehicle-mounted wind power generation device according to claim 3, characterized in that: The upper end of the generator cylinder (1) is fixedly connected to a first power connection ring (4) and a second power connection ring (5), the second power connection ring (5) is located outside the first power connection ring (4), the upper end of the rotating shaft (3) is fixedly connected to a rectangular bar (28) on the left side, a slide groove (30) is provided on the left side of the rectangular bar (28), a conductive bar (29) that can slide left and right is provided in the slide groove (30), the right side of the conductive bar (29) is elastically connected to the right inner wall of the slide groove (30) through a second spring (31), and the first power connection ring (4) and the second power connection ring (5) jointly control the opening and closing of the electromagnet (7).

5. The vehicle-mounted wind power generation device according to claim 3, characterized in that: The flushing mechanism comprises a piston cylinder (10) fixedly connected to the lower end of the power generation cylinder (1), a piston plate (26) which can slide left and right is arranged in the piston cylinder (10), and the right end of the rack (25) extends to the inner wall of the piston cylinder (10) and is fixedly connected to the left side of the piston plate (26).

6. A vehicle-mounted wind power generation device according to claim 5, characterized in that: The inner top of the power generating cylinder (1) is fixedly connected to a hollow bar (18), and the inner bottom of the hollow bar (18) is provided with a plurality of discharge ports (20). The right side space of the piston cylinder (10) is connected to a first one-way tube (11) and a second one-way tube (12), and the other end of the first one-way tube (11) is connected to two branch tubes (16), and the other ends of the two branch tubes (16) extend into the hollow bar (18). An atomizing nozzle (19) is installed at the lower end of the branch tube (16) on the left side, and an electromagnetic valve (17) is installed in the branch tube (16) on the right side. The inner bottom and the inner top of the right side space of the rectangular groove (21) are both embedded with power connection bars (24), and the two power connection bars (24) are used to control the electromagnetic valve (17) together.

7. A vehicle-mounted wind power generation device according to claim 6, characterized in that: One-way valves are installed inside the first one-way tube (11) and the second one-way tube (12). The one-way valve inside the second one-way tube (12) flows in a one-way direction from the outside to the right side space of the piston cylinder (10), while the one-way valve inside the first one-way tube (11) flows in a one-way direction from the right side space of the piston cylinder (10) to the two branch tubes (16).

8. A vehicle-mounted wind power generation method, using the power generation device according to any one of claims 1 to 7, characterized in that: The following steps are involved: The first step is to install the generator into the bottom of the front warning cover of the pure electric vehicle, and connect the upper end of the rotating shaft (3) to the input shaft of the generator; Step 2: When the car is running, a relative airflow is generated. After passing through the wind collecting cover (2), the airflow enters the interior of the generator cylinder (1) from the air inlet (32) and is finally discharged from the air outlet (13). After the airflow rushes into the generator cylinder (1), it acts on the blades (14) on the left side, causing the whole formed by the plurality of blades (14) and the rotating shaft (3) to rotate, thereby causing the rotating shaft (3) to rotate. The rotation of the rotating shaft (3) causes the generator to rotate to generate electricity. Step 3: When the vehicle speed reaches a set value, the annular net (15) rotates, so that the portion of the annular net (15) with a large number of large impurities adhering thereto rotates to the rear, so that when the gas flows out from the air outlet (13), the portion of the annular net (15) with the large impurities adhering thereto is back-blown; Step 4: When the backflush operation is performed, the blades (14) are also flushed to improve the overall power generation efficiency.

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