A micro wind generator and its application

By using a rotating support, wind direction sensor, and micro-wind collector, combined with a wind deflector and a steam turbine, the problem of low power generation caused by uncertain wind force and direction in vertical axis wind turbines has been solved, thus improving power generation efficiency and reducing construction costs.

CN116104703BActive Publication Date: 2025-12-02杭州慈源科技有限公司
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Patent Information

Application Number
CN202310082748.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-02-08
Publication Date
2025-12-02
Estimated Expiration
2043-02-08

AI Technical Summary

Technical Problem

Existing vertical axis wind turbines suffer from low power generation due to uncertain wind magnitude and direction. Current methods of increasing the number of blades result in larger turbine size and higher construction costs, and have not effectively addressed the reverse wind effect.

Method used

The system employs a rotating support, wind direction sensor, and micro-wind collector, combined with a wind deflector and a steam turbine. By sensing the wind direction, the position of the rotating support and micro-wind collector is adjusted. The wind deflector reduces non-positive wind force, and the steam turbine enhances wind energy. The number of power generation units is adjusted according to the wind strength to improve power generation efficiency.

Benefits of technology

It improves the generator's power generation efficiency, reduces the impact of wind direction changes on power generation, mitigates the problem of low power output when the wind speed is lower than the starting wind speed, and reduces construction costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a micro-wind generator and its application, belonging to the field of wind power generation. It includes a rotating support, a generator set, a micro-wind collection device, and a wind direction sensing device. The generator set includes a generator body and several wind blades, which are fixed vertically and horizontally to the wind blade shaft of the generator body. The rotating support includes a bottom gear disk, a rotating support body, and a rotating motor. The bottom gear disk is positioned above the generator body and rotatably connected to it. The rotating motor is positioned to the side of the bottom gear disk and connected to it via a chain. The rotating support body is fixed to the upper surface of the bottom gear disk. The micro-wind collection device includes micro-wind collectors corresponding to each wind blade, which are fixed to the rotating support body and located on the same side of the wind blades. The wind direction sensing device is used to sense the wind direction and is communicatively connected to the rotating motor. The micro-wind generator of this invention can effectively improve power generation.
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Description

Technical Field

[0001] This invention belongs to the field of wind power generation technology, and in particular relates to a micro wind generator and its application. Background Technology

[0002] Wind turbines are currently divided into vertical and horizontal engines. Compared with horizontal wind turbines, vertical wind turbines are smaller in size, easier to install, require lower starting wind speeds, and are more adaptable to changes in wind direction. They have advantages such as high efficiency, high wind energy utilization, quiet operation, and low maintenance costs, and are currently being widely developed.

[0003] Traditional vertical wind turbines, such as the high-efficiency vertical axis wind turbine that starts in a light breeze disclosed in Chinese Patent No. CN202867085U, include a main shaft perpendicular to the ground, a power generation device, and lifting blades. The lifting blades have an airfoil-like structure and are connected to the main shaft via connecting rods and hubs and are equidistantly distributed around the main shaft. The lifting blades are also equipped with movable wind deflectors to enhance wind resistance when facing headwinds.

[0004] The aforementioned vertical wind turbine utilizes the wind force exerted on the lift blades by a light breeze to rotate the main shaft, which in turn drives the power generation device to generate electricity. However, in practical applications, the strength and direction of the wind are uncertain, both of which affect the generator's output power: too weak a wind will result in low main shaft rotation efficiency, ultimately leading to lower power output; constantly changing wind direction will cause wind forces from different directions to create resistance on the blades as the generator's main shaft rotates, resulting in lower power output.

[0005] To address the issue of insufficient wind power impacting generator output, current approaches involve increasing the number of blades. For example, Chinese patent CN218093302U discloses a giant array micro-wind farm power generation tower, comprising a long-axis generator and a support tower. The support tower includes a pre-embedded foundation chassis, a main support pipe, and an auxiliary support frame. The pre-embedded foundation chassis is a pre-embedded standard component formed by casting concrete and reinforcing steel bolts. The main support pipe and auxiliary support frame are quickly installed via the center hole of the pre-embedded foundation chassis and the bolts. The long-axis generator is mounted on the main support pipe and auxiliary support frame. This design integrates multiple individual power generation towers into a large-scale three-dimensional micro-wind farm power generation tower array, solving the technical challenge of existing vertical axis wind power systems being unable to achieve giant array micro-wind farm power generation.

[0006] However, this giant micro-wind field generator inevitably leads to an increase in the size of the generator itself and a higher construction cost. At the same time, the giant micro-wind field generator still does not solve the impact of the uncertainty of wind direction. Summary of the Invention

[0007] The purpose of this invention is to provide a micro wind generator and its application to solve the problem of low power generation caused by the influence of factors such as wind speed and direction on existing vertical axis wind turbines.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] This invention relates to a micro-wind generator, comprising a rotating support, a generator set, a micro-wind collection device, and a wind direction sensing device. The generator set includes a generator body and several wind blades, which are fixed vertically and horizontally on the wind blade shaft of the generator body. The rotating support includes a bottom gear disk, a rotating support body, and a rotating motor. The bottom gear disk is positioned above the generator body and rotatably connected to it. The wind blade shaft passes through the axis of the bottom gear disk. The rotating motor is positioned to the side of the bottom gear disk and connected to it via a chain. The rotating support body is fixed to the upper surface of the bottom gear disk. The micro-wind collection device includes micro-wind collectors corresponding to each wind blade, which are fixed to the rotating support body and located on the same side of the wind blades. The wind direction sensing device is used to sense the wind direction and is communicatively connected to the rotating motor.

[0010] Preferably, the micro-wind collection device further includes a first counterweight corresponding to each micro-wind collector. The first counterweight is fixed to the rotating support body and forms a 180-degree angle with the micro-wind collector. The weight of the first counterweight and the corresponding micro-wind collector are equal. The cooperation between the first counterweight and the micro-wind collector balances the forces on both sides of the rotating support body.

[0011] Preferably, the micro-wind collecting device further includes a first counterweight corresponding to each micro-wind collector and a crescent-shaped wind baffle. The wind baffle is disposed on the outside of the corresponding wind blade, with the micro-wind collecting device facing the opening of the wind baffle. The first counterweight is fixed to the rotating support body and forms a 180-degree angle with the micro-wind collector. The total weight of the first counterweight and the wind baffle is equal to the weight of the corresponding micro-wind collector. The fact that the total weight of the first counterweight and the crescent-shaped wind baffle is equal to the weight of the corresponding micro-wind collector ensures that the rotating support body is balanced on both sides. The crescent-shaped wind baffle ensures that wind can only blow towards the wind blade from the opening side of the wind baffle, preventing wind from other directions from creating resistance to the wind blade.

[0012] Preferably, a steam turbine is provided between the micro-wind collector and the corresponding wind blade. The steam turbine includes a wind collecting ring and steam turbine blades. The wind collecting ring is provided with an air inlet and an air blowing groove. The micro-wind collector faces the air inlet of the wind collecting ring, the air blowing groove faces the steam turbine blades, and the output end of the steam turbine blades is aligned with the corresponding wind blade.

[0013] Preferably, the wind collector comprises several sets of wind collecting funnels arranged sequentially from the inside out. The small opening of each wind collecting funnel faces the corresponding fan blade. The number of wind collecting funnels in the outer set is twice that of the inner set, and the small opening of the outer set is located inside the large opening of the inner set. Wind enters from the large opening of the wind collecting funnel and exits from the small opening. As the channel narrows, the wind force increases, which is more conducive to blowing the fan blade.

[0014] Preferably, the upper surface of the generator body is provided with an annular roller groove, and the bottom of the bottom gear disk is provided with a plurality of rollers arranged circumferentially. The rollers and roller grooves cooperate to enable the bottom gear disk to be rotatably connected to the generator body. The cooperation between the roller grooves and rollers helps to improve the rotational stability of the rotating support body.

[0015] Preferably, the generator body includes a slide frame and multiple generator units. Each generator unit has a rotor, a stator, and an electromagnetic clutch. The rotors of each generator unit are fixed vertically at intervals on the fan blade shaft. The electromagnetic clutches of each generator unit are also fixed vertically at intervals on the fan blade shaft and are located above the rotors of the same group of generator units. The stators of each generator unit are slidably connected to the slide frame. The initial position of the stator is located diagonally below the corresponding rotor. When the electromagnetic clutch is energized, it attracts the corresponding stator upward, causing the stator to move to the outside of the corresponding rotor, so that the corresponding generator unit generates electricity.

[0016] Each of the aforementioned power generation units also includes several second counterweights, the total weight of which is equal to the weight of the stator of the same group of power generation units. A pulley is provided on the outer side of the slide frame, and the second counterweights are connected to the stator of the same group of power generation units through a traction line provided on the pulley. A return spring is also provided at the stator of each power generation unit, the bottom end of which is fixed to the stator, and the top end of which is fixed to the slide frame.

[0017] This design can adjust the conduction state of the electromagnetic clutch according to the wind force, thereby changing the number of power generation units in operation. When the wind force is low, fewer power generation units are activated, and vice versa. This avoids the inability to drive more power generation units due to insufficient wind force, which helps to improve power generation efficiency.

[0018] Preferably, the wind direction sensing device includes a base, a wind vane, a rotating shaft, a moving rod, an iron plate, and several Hall effect proximity switches. The rotating shaft is rotatably connected to the bottom plate of the base. The wind vane is fixed at the top of the rotating shaft, and the moving rod is fixed in the middle of the rotating shaft. The moving rod and the wind vane are arranged parallel to each other. The iron plate is fixed to the end of the moving rod opposite the tip of the wind vane. The Hall effect proximity switches are evenly fixed on the side plate of the base in a circumferential pattern. All Hall effect proximity switches are communicatively connected to a rotary motor.

[0019] The micro wind generator also includes a fixed support, and the rotating support and generator set are both installed inside the fixed support. The wind direction sensing device and the rotating motor are both fixed on the fixed support.

[0020] The present invention also relates to an application of the above-mentioned micro wind generator, which is constructed on the ground or on a ship.

[0021] Preferably, it is constructed on a ship, which includes a hull, a towable damping net, multiple damping plates, and damping plate drive motors for driving the damping plates. The towable damping net is located below the horizontal plane of the hull. The damping plate drive motors are installed inside the hull, and the damping plates are installed on the sides and / or front and / or rear of the hull and connected to the corresponding damping plate drive motors. When the micro-wind generator is in operation, the damping plates are fully submerged in the seawater by the damping plate drive motors, causing the hull to slow down or remain stationary. When the ship is sailing, the damping plates are raised to be fully exposed above the water surface by the damping plate drive motors.

[0022] The hull is also equipped with a lightning collection device, which includes a collection rod and an airship. The collection rod is fixed above the hull and is higher than the height of the micro wind turbine. The airship is located above the hull and in the stratosphere. The airship is equipped with a superconducting wire that extends downward to near the top of the collection rod.

[0023] Compared with the prior art, the technical solution provided by the present invention has the following technical effects:

[0024] 1. The micro wind generator of the present invention is equipped with a wind direction sensing device and a rotating support, and a micro wind collector is provided on the side of each wind blade. The wind direction sensing device is used to sense the direction of the wind and drives the rotating support through a rotating motor so that the air inlet of the micro wind collector faces the direction of the wind. The micro wind collector increases the kinetic energy of the wind by narrowing the gas channel, thereby making the wind force acting on the wind blade greater and improving the power generation efficiency of the generator.

[0025] 2. The micro wind generator of the present invention can also be provided with a crescent-shaped wind baffle on the outside of the wind blades, with the micro wind collection device facing the opening of the wind baffle. The wind baffle blocks the wind blowing from other directions except the wind directly facing the micro wind collection device, reducing the resistance of the wind blowing towards the wind blades from other directions to the rotation of the wind blades, further ensuring the rotation speed of the wind blades and improving the power generation efficiency of the generator.

[0026] 3. The generator body of the micro wind generator involved in this invention includes a slide frame and multiple power generation units. Each power generation unit has a rotor, a stator, and an electromagnetic clutch. The initial position of the stator is located diagonally below the corresponding rotor. When the electromagnetic clutch is energized, it attracts the corresponding stator upward, causing the stator to move to the outside of the corresponding rotor, thereby generating electricity for the corresponding power generation unit. This design can adjust the conduction state of the electromagnetic clutch according to the wind force, thereby changing the number of power generation units in operation. When the wind force is low, fewer power generation units are activated, and vice versa. This avoids the inability to drive more power generation units due to insufficient wind force, which helps to improve power generation efficiency. Attached Figure Description

[0027] Figure 1 This is a perspective view of the micro wind generator without a wind deflector in Example 1;

[0028] Figure 2 This is a perspective view of the micro wind generator cut open at the generator body in Example 1;

[0029] Figure 3 This is a front view of the micro wind generator without a wind deflector in Example 1;

[0030] Figure 4 This is a diagram of the internal structure of the generator body;

[0031] Figure 5 This is a schematic diagram of the wind direction sensing device;

[0032] Figure 6 This is a front view of the micro wind generator with a wind baffle in Example 2;

[0033] Figure 7 This is a perspective view of the micro wind generator with a steam turbine in Example 3;

[0034] Figure 8 This is a front view of the micro wind generator's power generation status as described in Example 4;

[0035] Figure 9 This is a front view of the navigation status of the micro wind generator involved in Example 4.

[0036] Wherein: 11-Generator body, 111-Slide frame, 112-Rotor, 113-Stator, 114-Electromagnetic clutch, 115-Second counterweight, 116-Pulley, 12-Wind blade, 13-Wind blade shaft, 14-Roller groove, 21-Bottom gear disk, 22-Rotating support body, 23-Rotating motor, 24-Chain, 25-Roller, 31-Micro-wind collector, 32-First counterweight, 33-Wind collecting ring 34-Steam turbine blade, 35-Blowing groove, 36-Wind baffle, 4-Wind direction sensing device, 41-Base, 42-Wind vane, 43-Rotating shaft, 44-Moving rod, 45-Iron sheet, 46-Hall proximity switch, 5-Fixed bracket, 61-Hull, 62-Tow-type damping net, 63-Damping plate, 64-Damping plate drive motor, 7-Tachometer, 81-Collecting rod, 82-Airship, 83-Superconducting wire, 9-Cloud layer. Detailed Implementation

[0037] To enhance understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and accompanying drawings. These embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention. Example 1

[0038] See attached document Figures 1-3 As shown, this embodiment relates to a micro wind generator built on the ground, which includes a fixed support 5, a rotating support, a generator set, a micro wind collection device and a wind direction sensing device. The rotating support and the generator set are both installed inside the fixed support.

[0039] The generator set includes a generator body 11 and several fan blades 12, with the fan blades 12 fixed at intervals on the fan blade shaft 13 of the generator body 11.

[0040] The rotating support includes a bottom gear disk 21, a rotating support body 22, and a rotating motor 23. The bottom gear disk 21 is positioned above the generator body 11 and rotatably connected to it. Specifically, the upper surface of the generator body 11 has an annular roller groove 14, and the bottom of the bottom gear disk 21 has several rollers 25 arranged circumferentially. The rollers 25 cooperate with the roller groove 14 to rotatably connect the bottom gear disk 21 to the generator body 11, thereby improving the stability of the rotating support. The fan blade shaft 13 passes through the axis of the bottom gear disk 21. The rotating motor 23 is fixed on the fixed bracket 5 and located to the side of the bottom gear disk 21, connected to it via a chain 24. The rotating support body 22 is fixed to the upper surface of the bottom gear disk 21.

[0041] The aforementioned wind collection device includes wind collectors 31 corresponding to each wind blade 12 and first counterweights 32 corresponding to each wind collector 31. The wind collectors are fixed to the rotating support body 22 and located on the same side of the wind blade 12. The first counterweights 32 are fixed to the rotating support body 22 and form a 180-degree angle with the wind collectors 31. The weights of the first counterweights 32 and the corresponding wind collectors 31 are equal, thereby balancing the forces on both sides of the rotating support body 22. Each set of wind collectors 31 includes several sets of wind collection funnels arranged sequentially from the inside out. The small opening of each wind collection funnel faces the corresponding wind blade 12. The number of wind collection funnels in the outer set is twice that of the inner set, and the small opening of the outer set is located inside the large opening of the inner set. The wind enters from the large opening of the wind collection funnel and exits from the small opening. As the channel narrows, the wind force increases, which helps to blow the wind blade 12.

[0042] The generator body 11 described above is a variable frequency generator, or it may be a generator such as... Figure 4 The generator shown has a main body 11 comprising a slide frame 111 and multiple generator units. Each generator unit has a rotor 112, a stator 113, and an electromagnetic clutch 114. The rotors 112 of each generator unit are fixed vertically at intervals on the fan blade shaft 13. The electromagnetic clutches 114 of each generator unit are also fixed vertically at intervals on the fan blade shaft and are located above the rotors 112 of the same generator unit. The stators 113 of each generator unit are slidably connected to the slide frame 111. The initial position of the stator 113 is located diagonally below the corresponding rotor 112. When the electromagnetic clutch 114 is energized, it moves the corresponding stator 112... 3. The upward attraction causes the stator 113 to move to the outside of the corresponding rotor 112, thereby generating electricity for the corresponding power generation unit. Each power generation unit also includes several second counterweights 115, the total weight of which is equal to the weight of the stator 113 of the same power generation unit. A pulley 116 is provided on the outside of the slide frame 111. The second counterweights 115 are connected to the stator 113 of the same power generation unit via traction lines on the pulleys 116. A return spring is also provided at the stator 113 of each power generation unit, with the bottom end fixed to the stator 113 and the top end fixed to the slide frame 111. The generator body 11 can adjust the conduction state of the electromagnetic clutch 114 according to the wind force, thereby changing the number of operating power generation units. Fewer power generation units are activated when the wind force is low, and more power generation units are activated when the wind force is high, avoiding the inability to drive more power generation units due to insufficient wind force, thus helping to improve power generation efficiency.

[0043] The wind direction sensor 4 is fixed on the fixed bracket 5. The wind direction sensor 4 is used to sense the wind direction and is communicatively connected to the rotating motor 23. (See attached diagram.) Figure 5As shown, the wind direction sensing device 4 includes a base 41, a wind vane 42, a rotating shaft 43, a moving rod 44, an iron plate 45, and several Hall proximity switches 46. The rotating shaft 43 is rotatably connected to the bottom plate of the base 41. The wind vane 42 is fixed at the top of the rotating shaft 43, and the moving rod 44 is fixed in the middle of the rotating shaft 43. The moving rod 44 and the wind vane 42 are arranged in parallel. The iron plate 45 is fixed to the end of the moving rod 44 opposite to the tip of the wind vane 42. The Hall proximity switches 46 are evenly fixed on the side plate of the base 41 in a circumferential pattern. Each Hall proximity switch 46 is coded and communicates with the rotary motor 23.

[0044] The working principle of the above-mentioned micro-wind generator is as follows: the wind vane 42 senses the direction of the wind and drives the rotating shaft 43 to rotate. The rotation of the rotating shaft 43 drives the moving rod 44 to rotate, causing the position of the iron plate 45 to change. When the moving rod 44 is stable, the Hall proximity switch 46 closest to the iron plate 45 senses the presence of the iron plate 45 and sends a signal to the rotary motor 23. After receiving the signal from the Hall proximity switch 46 with the corresponding code, the rotary motor 23 starts and drives the bottom gear disk 21 and the rotating support body 22 to rotate through the chain 24, so that the air inlet of the micro-wind collector 31 is aligned with the direction of the wind. The micro-wind collector 31 collects the wind and accelerates the airflow speed by narrowing the gas channel, thereby making the force of the wind acting on the wind blade 12 greater. After the wind blows the wind blade, it drives the wind blade rotating shaft 13 to rotate, thereby making the generator body 11 generate electricity. Example 2

[0045] See attached document Figure 6 As shown, the difference between this embodiment and Embodiment 1 is only that: in addition to the first counterweight 32, the micro wind generator involved in this embodiment also has a crescent-shaped wind baffle 36. The wind baffle 36 is set on the outside of the corresponding wind blade 12, and the micro wind collector faces the opening of the wind baffle 36. The first counterweight 32 is fixed on the rotating support body 22 and forms a 180-degree angle with the micro wind collector 31. The total weight of the first counterweight 32 and the wind baffle 36 is equal to the weight of the corresponding micro wind collector 31, so that the rotating support body 22 is balanced on both sides. The crescent-shaped wind baffle 36 makes the wind blow only from the opening side of the wind baffle 36 to the wind blade, avoiding the wind from other directions from forming resistance to the wind blade. Example 3

[0046] See attached document Figure 7As shown, the difference between this embodiment and Embodiment 1 is only that: in this embodiment, a steam turbine is also provided between the micro-wind collector 31 and the corresponding fan blade 12. The steam turbine includes a wind-collecting ring 33 and steam turbine blades 34. The wind-collecting ring 33 is provided with an air inlet and an air-blowing groove 35. The micro-wind collector 31 faces the air inlet of the wind-collecting ring, the air-blowing groove 35 faces the steam turbine blades, and the output end of the steam turbine blades 34 is aligned with the corresponding fan blade 12. In this embodiment, the micro-wind collected by the micro-wind collector 31 first drives the steam turbine blades 34 to rotate. The wind generated by the rotation of the steam turbine blades 34 then acts on the fan blades 12, causing the fan shaft 13 to rotate. Example 4

[0047] This embodiment installs one or more of the micro wind generators from Embodiments 1-3 on a ship, as shown in the attached diagram. Figure 8 The ship includes a hull 61, a towable damping net 62, multiple damping plates 63, and damping plate drive motors 64 for driving the damping plates 63. When the ship sails at sea, the damping plates 63 are fully submerged in the water by the damping plate drive motors 64. The damping plates 63, in conjunction with the towable damping net 62, increase the resistance of the seawater to the hull 61. At this time, the sea breeze blows onto the micro-generator to generate electricity. When the ship needs to sail, the damping plates 63 are raised to the surface by the damping plate drive motors 64, reducing the resistance of the seawater to the hull and increasing the contact area of ​​the sea breeze with the hull. The hull is then propelled by the sea breeze. Figure 9 As shown.

[0048] Reference Figure 8 As shown, the hull 61 is also equipped with a lightning collection device, which includes a collection rod 81 and an airship 82. The collection rod 81 is fixed above the hull 61, and its height is higher than that of the micro-wind generator. The collection rod 81 has a telescopic structure, shortening when not in use and extending when collecting lightning. Multiple collection rods 81 can be installed on the hull. The airship 82 is located above the hull 61 and in the stratosphere. The airship 82 is equipped with a room-temperature superconducting wire 83 made of room-temperature microporous condensate, which extends downward to near the top of the collection rod 81. The superconducting wire 83 is a superconducting liquid heat dissipation composite powder conductive wire, which has been disclosed in Chinese invention patent entitled "High-Frequency Motor with Superconducting Liquid Heat Dissipation Composite Powder Non-Conductive Wire Rotating Around a Stator" (application number 2014100181952).

[0049] During the navigation of the ship 61, it works with the weather detection platform to find areas where lightning may occur. When the ship 61 and the airship 82 reach the area, the superconducting wire 83 on the airship passes through the charged clouds and guides the induced lightning to the collecting rod 82 to collect and store the electrical energy in the charged clouds.

[0050] The present invention has been described in detail above with reference to embodiments, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. The present invention is applicable to all vacuum multilayer insulated containers, including those in the liquid nitrogen and liquid hydrogen temperature zones. All equivalent variations and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A micro-wind generator, characterized in that: It includes a rotating support, a generator set, a micro-wind collection device, and a wind direction sensing device. The generator set includes a generator body and several wind blades, which are fixed vertically and horizontally on the wind blade shaft of the generator body. The rotating support includes a bottom gear disk, a rotating support body, and a rotating motor. The bottom gear disk is located above the generator body and is rotatably connected to the generator body. The wind blade shaft passes through the axis of the bottom gear disk. The rotating motor is located on the side of the bottom gear disk and connected to the bottom gear disk via a chain. The rotating support body is fixed to the upper surface of the bottom gear disk. The micro-wind collection device includes micro-wind collectors corresponding to each wind blade. The micro-wind collectors are fixed to the rotating support body and located on the same side of the wind blades. The wind direction sensing device is used to sense the wind direction and is communicatively connected to the rotating motor. The generator body includes a slide frame and multiple generator units. Each generator unit has a rotor, a stator and an electromagnetic clutch. The rotors of each generator unit are fixed vertically on the fan blade shaft at intervals. The electromagnetic clutches of each generator unit are also fixed vertically on the fan blade shaft at intervals and are located above the rotors of the same group of generator units. The stators of each generator unit are slidably connected to the slide frame. The initial position of the stator is located diagonally below the corresponding rotor. When the electromagnetic clutch is energized, it attracts the corresponding stator upward, causing the stator to move to the outside of the corresponding rotor, so that the corresponding generator unit generates electricity. Each of the aforementioned power generation units also includes several second counterweights, the total weight of which is equal to the weight of the stator of the same group of power generation units. A pulley is provided on the outer side of the slide frame, and the second counterweights are connected to the stator of the same group of power generation units through a traction line provided on the pulley. A return spring is also provided at the stator of each power generation unit, the bottom end of which is fixed to the stator, and the top end of which is fixed to the slide frame.

2. The micro wind generator according to claim 1, characterized in that: The aforementioned wind collection device also includes a first counterweight corresponding to each wind collector. The first counterweight is fixed to the rotating support body and forms a 180-degree angle with the wind collector. The weight of the first counterweight is equal to that of the corresponding wind collector.

3. The micro-wind generator according to claim 1, characterized in that: The aforementioned micro-wind collection device also includes a first counterweight block corresponding to each micro-wind collector and a crescent-shaped wind baffle. The wind baffle is located on the outside of the corresponding wind blade, with the micro-wind collection device facing the opening of the wind baffle. The first counterweight block is fixed to the rotating support body and forms a 180-degree angle with the micro-wind collector. The total weight of the first counterweight block and the wind baffle is equal to the weight of the corresponding micro-wind collector.

4. The micro-wind generator according to claim 1, characterized in that: A steam turbine is also provided between the micro-wind collector and the corresponding wind blade. The steam turbine includes a wind collecting ring and steam turbine blades. The wind collecting ring is provided with an air inlet and an air blowing groove. The micro-wind collector faces the air inlet of the wind collecting ring, the air blowing groove faces the steam turbine blades, and the output end of the steam turbine blades is aligned with the corresponding wind blade.

5. The micro-wind generator according to any one of claims 1 to 4, characterized in that: The aforementioned wind collector includes several sets of wind collection funnels arranged sequentially from the inside out. The small opening of each wind collection funnel faces the corresponding wind blade. The number of wind collection funnels in the outer set is twice that of the inner set, and the small opening of the outer set is located inside the large opening of the inner set.

6. The micro wind generator according to claim 1, characterized in that: The upper surface of the generator body is provided with an annular roller groove, and the bottom of the bottom gear disk is provided with several rollers arranged in a circular pattern. The rollers and the roller groove cooperate to make the bottom gear disk rotatably connected to the generator body.

7. The micro wind generator according to claim 1, characterized in that: The wind direction sensing device includes a base, a wind vane, a rotating shaft, a moving rod, an iron plate, and several Hall effect proximity switches. The rotating shaft is rotatably connected to the bottom plate of the base. The wind vane is fixed at the top of the rotating shaft, and the moving rod is fixed in the middle of the rotating shaft. The moving rod and the wind vane are arranged parallel to each other. The iron plate is fixed to the end of the moving rod opposite the tip of the wind vane. The Hall effect proximity switches are evenly fixed on the side plates of the base in a circumferential pattern. All Hall effect proximity switches are communicatively connected to a rotary motor.

8. An application of the micro wind generator according to claim 1, characterized in that: It is built on land or on a ship.

Citation Information

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