Vertical axis lift type wind turbine and self-powered wind speed warning system

Abstract

The present application relates to a vertical axis lift type wind turbine and a self-powered wind speed warning system, wherein the wind turbine comprises: a wind turbine assembly and a generator assembly; the wind turbine assembly comprises a rotating support seat, a first gear, a vertical main shaft and a fixed base and a plurality of blade assemblies, each blade assembly comprising a bionic blade, a support frame, a second gear and a horizontal push rod; the vertical main shaft is rotatably mounted inside the fixed base and the top of the vertical main shaft extends out of the top of the fixed base, the rotating support seat is coaxially fixedly connected with the top of the vertical main shaft, the first gear is fixedly connected with the top of the fixed base and is coaxial with the vertical main shaft; the plurality of blade assemblies are evenly spaced and distributed on the circumference of the vertical main shaft. The vertical axis lift type wind turbine provided by the present invention has a high wind energy capture efficiency because the bionic blades continuously change their own angle of attack during the power generation process, thereby solving the problem of low wind energy capture efficiency of the current vertical axis lift type wind turbine.

Description

Technical Field

[0001] The present application relates to the field of wind power generation, and in particular to a vertical-axis lift-type wind turbine and a self-powered wind speed warning system. Background Art

[0002] Since the invention of wind turbines, electromagnetic generators have been the main power generation method for wind turbines due to their high output performance at high speeds. However, due to the large mass of the coils and magnets of electromagnetic generators, they require a high starting torque and cannot be started at low wind speeds. Unlike electromagnetic generators, friction nanogenerators have flexible structures, diverse materials, light weight, high voltage, high efficiency, lightweight, and low manufacturing cost, making them a feasible technology for effectively collecting wind energy at low wind speeds.

[0003] On the other hand, the most commonly used wind turbines are horizontal-axis lift-type wind turbines. Although this type of wind turbine has a high energy capture efficiency at high wind speeds, it can only collect wind energy in a single direction and is difficult to start at low wind speeds, making it unsuitable for distributed scenarios with low wind speeds and variable wind directions. The existing vertical-axis drag-type wind turbines can collect wind energy in all directions starting at low wind speeds, but their energy capture efficiency is much lower than that of lift-type wind turbines.

[0004] There is currently no effective solution to the problem of low wind energy capture efficiency of current vertical axis resistance type wind turbines. Summary of the invention

[0005] The present invention provides a vertical-axis lift-type wind turbine with variable pitch and a self-powered wind speed warning system to solve the problem of low wind energy capture efficiency of current micro wind turbines.

[0006] In a first aspect, the present invention provides a vertical-axis lift-type wind turbine with a variable pitch, the wind turbine comprising a wind turbine assembly and a generator assembly;

[0007] The wind turbine assembly comprises a rotating support seat, a first gear, a vertical main shaft and a fixed base, and a plurality of blade assemblies, each blade assembly comprising a bionic blade, a support frame, a second gear and a horizontal push rod;

[0008] The vertical main shaft is rotatably mounted inside the fixed base and the top of the vertical main shaft extends out of the top of the fixed base, the rotating support seat is coaxially fixedly connected to the top of the vertical main shaft, and the first gear is fixedly connected to the top of the fixed base and coaxial with the vertical main shaft;

[0009] A plurality of groups of blade assemblies are distributed at equal intervals around the vertical main axis;

[0010] In each group of the blade assemblies, the second gear is meshed with the first gear and is rotatably mounted on the lower surface of the rotating support seat, the support frame is fixedly mounted on the peripheral side of the rotating support seat, the middle portion of the bionic blade is rotatably connected to a side of the support frame away from the rotating support seat, and the rotation axis is parallel to the vertical main axis, and the two ends of the horizontal push rod are respectively rotatably connected to the trailing edge of the bionic blade and the side portion of the second gear, and the rotation axis is parallel to the vertical main axis;

[0011] The generator assembly includes a rotor portion and a stator portion;

[0012] The stator part is fixedly mounted on the bottom of the fixed base, the rotor part is rotatably mounted on the bottom of the fixed base and is coaxially fixedly connected to the bottom end of the vertical main shaft, and the generator assembly generates electricity through relative rotation between the rotor part and the stator part.

[0013] In a second aspect, the present invention provides a self-powered wind speed warning system, the self-powered wind speed warning system comprising a wind speed monitoring module, a real-time display module, an alarm, a power management circuit, an energy storage module and the vertical axis lift type wind turbine of the first aspect;

[0014] The wind speed monitoring module is electrically connected to the friction nanogenerator module in the vertical axis lift type wind turbine, and the wind speed monitoring module is configured to monitor the frequency of the electrical signal generated by the friction nanogenerator module and convert it into a corresponding wind speed;

[0015] The real-time display module is electrically connected to the wind speed monitoring module, and the real-time display module is configured to display the wind speed in real time;

[0016] The alarm is electrically connected to the wind speed monitoring module, and the alarm is configured to trigger an alarm action when the wind speed is greater than a threshold;

[0017] The energy storage module is electrically connected to the friction nanogenerator module and the electromagnetic generator module in the vertical axis lift type wind turbine through the power management circuit, and the energy storage module is configured to store electrical energy and provide electrical energy for the real-time display module and the alarm.

[0018] In a third aspect, a real-time weather station monitoring system is provided in the present invention, and the real-time weather station monitoring system includes the self-powered wind speed warning system described in the second aspect.

[0019] Compared with the related art, the vertical axis lift type wind turbine provided by the present invention has a higher wind energy capture efficiency because the bionic blades continuously change their angle of attack during the power generation process. Therefore, a vertical axis lift type wind turbine with high wind energy capture efficiency is provided, which solves the problem of low wind energy capture efficiency of the current vertical axis lift type wind turbine.

[0020] Details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is an overall appearance diagram of a vertical-axis lift-type wind turbine in some embodiments of the present invention;

[0022] Figure 2 is an overall cross-sectional view of a vertical-axis lift-type wind turbine in some embodiments of the present invention;

[0023] Figure 3 is a top view of a wind turbine assembly in some embodiments of the present invention;

[0024] Figure 4 is a bottom view of a wind turbine assembly in some embodiments of the present invention;

[0025] Figure 5 is a top view of a support seat body in some embodiments of the present invention;

[0026] Figure 6 is a bottom view of a support base body in some embodiments of the present invention;

[0027] Figure 7 is a bottom view of a top cover of a support seat in some embodiments of the present invention;

[0028] Figure 8 is a structural diagram of a coupling in some embodiments of the present invention;

[0029] Fig. 9 is a bottom surface installation diagram of the support seat body in some embodiments of the present invention;

[0030] Fig.10 is a structural diagram of a rotating disk in some embodiments of the present invention;

[0031] Fig.11 is a diagram of the coordination structure of the rotating disk and the fixed disk in some embodiments of the present invention;

[0032] Fig.12 is a structural diagram of a fixed disk in some embodiments of the present invention;

[0033] Fig.13 is a diagram of the structure of a self-powered wind speed warning system in some embodiments of the present invention;

[0034] Fig.14 1 is a diagram showing the structure of a real-time weather station monitoring system in some embodiments of the present invention. DETAILED DESCRIPTION

[0035] In order to more clearly understand the purpose, technical solutions and advantages of the present application, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments.

[0036] Unless otherwise defined, the technical terms or scientific terms involved in this application shall have the general meaning understood by people with general skills in the technical field to which this application belongs. The words "one", "a", "the", "these" and the like in this application do not indicate a quantitative limitation, and they may be singular or plural. The terms "include", "comprise", "have" and any variants thereof involved in this application are intended to cover non-exclusive inclusions; for example, a process, method and system, product or device comprising a series of steps or modules (units) is not limited to the listed steps or modules (units), but may include unlisted steps or modules (units), or may include other steps or modules (units) inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there may be three relationships, for example, "A and / or B" may mean: A exists alone, A and B exist at the same time, and B exists alone. Generally, the character " / " indicates that the objects associated with each other are in an "or" relationship. The terms "first", "second", "third", etc. in this application are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0037] The present invention provides a vertical axis lift type wind turbine. Figure 1 1 is a structural diagram of a vertical-axis lift-type wind turbine provided in some embodiments of the present invention.

[0038] like Figure 1As shown, the wind turbine includes a wind turbine assembly 100 and a generator assembly 200; the wind turbine assembly 100 includes a rotating support seat, a first gear, a vertical main shaft 170 and a fixed base 180 and a plurality of blade assemblies, each blade assembly includes a bionic blade 110, a support frame 120, a second gear 150 and a horizontal push rod 160; the vertical main shaft 170 is rotatably installed inside the fixed base 180 and the top of the vertical main shaft 170 extends out of the top of the fixed base 180, the rotating support seat is coaxially fixedly connected to the top of the vertical main shaft 170, the first gear is fixedly connected to the top of the fixed base 180 and is coaxial with the vertical main shaft 170; the plurality of blade assemblies are evenly spaced and distributed around the vertical main shaft 170; in each blade assembly, the second gear 1 50 is meshed with the first gear and rotatably mounted on the lower surface of the rotating support seat, the support frame 120 is fixedly mounted on the peripheral side of the rotating support seat, the middle part of the bionic blade 110 is rotatably connected to the side of the support frame 120 away from the rotating support seat, and the rotation axis is parallel to the vertical main shaft 170, and the two ends of the horizontal push rod 160 are respectively rotatably connected to the trailing edge of the bionic blade 110 and the side of the second gear 150, and the rotation axis is parallel to the vertical main shaft 170; the generator assembly includes a rotor part and a stator part; the stator part is fixedly mounted on the bottom of the fixed base 180, the rotor part is rotatably mounted on the bottom of the fixed base 180 and is coaxially fixedly connected to the bottom end of the vertical main shaft 170, and the generator assembly generates electricity through relative rotation between the rotor part and the stator part.

[0039] When the external wind acts on the bionic blade, the bionic blade 110 drives the rotating support seat to rotate through the support frame 120, and then drives the vertical main shaft 170 to rotate. The fixed base 180 remains fixed after installation. The vertical main shaft 170 drives the rotor part to rotate, while the stator part remains fixed with the fixed base 180, so that the rotor part and the stator part rotate relative to each other to achieve power generation. During the power generation process, since the fixed base 180 always remains fixed, the second gear 150 and the first gear at the head of the fixed base 180 are meshed with each other. When the rotating support seat rotates, the second gear 150 starts to rotate, and at this time, it pushes the horizontal push rod 160 to push the trailing edge of the bionic blade 110 to move forward and backward. Since the position and speed of the bionic blade 110 pushed by the horizontal push rod 160 of the second gear 150 are different at different rotation angles, the bionic blade 110 can adaptively change the angle of attack according to different incoming flow directions to delay the shedding of vortices formed on the blade surface by wind, thereby improving the aerodynamic performance of the bionic wind turbine assembly 100 and further increasing the ability of the bionic wind turbine assembly 100 to capture wind energy.

[0040] In summary, the vertical axis lift type wind turbine provided by the present invention has a high wind energy capture efficiency because the bionic blades 110 continuously change their own angle of attack during the power generation process. Therefore, a vertical axis lift type wind turbine with high wind energy capture efficiency is provided, which solves the problem of low wind energy capture efficiency of the current vertical axis lift type wind turbine.

[0041] Preferably, the bionic blade 110 can introduce raised nodules at the leading edge of the blade according to the raised structure of the humpback whale's pectoral fin, and the trailing edge of the blade can adopt the internationally commonly used NACA 0018 airfoil structure; the horizontal push rod 160 can simulate the change of the blade's angle of attack according to the swinging posture of the humpback whale's pectoral fin during movement.

[0042] In some of the embodiments, the stator part includes a rotating disk 220, and the stator part includes a fixed disk 270; the rotating disk 220 is coaxially fixedly connected to the bottom end of the vertical main shaft 170, and the fixed disk 270 is directly below the rotating disk 220 and fixedly connected to the bottom of the fixed base 180; a magnet 240 is installed on the rotating disk 220, and the magnet 240 can be a permanent magnet. A coil 250 is installed in the middle of the fixed disk 270, and the coil 250 is directly below the magnet 240; the magnet 240 and the coil 250 constitute an electromagnetic generator module.

[0043] In the above embodiments, the generator assembly 200 at least includes an electromagnetic generator module. In some embodiments based on this, the circumference of the rotating disk 220 is evenly fixedly connected with a rotating rod, and an electronegative film 230 is installed on the rotating rod. The upper surface of the fixed disk 270 is installed with a positive conductive electrode 260. During the rotation of the rotating disk, the electronegative film 230 and the positive conductive electrode 260 are in friction contact; the electronegative film 230 and the positive conductive electrode 260 constitute a friction nanogenerator module. In these embodiments, the generator assembly 200 also includes a friction nanogenerator module, and the generator assembly adopts a composite power generation method.

[0044] Specifically, the bottom end of the vertical main shaft 170 is fixedly connected to the rotating disk 220 through a first coupling, the rotating disk 220 is provided with a first mounting groove 222, the magnet 240 is fixedly installed in the first mounting groove 222, the middle of the fixed disk 270 is provided with a second mounting groove 272, and the coil 250 is fixedly installed in the second mounting groove 272. The material of the electronegative film 230 includes but is not limited to one of polyimide, perfluoroethylene propylene copolymer and fluorinated ethylene propylene copolymer; the material of the positive conductive electrode 260 includes but is not limited to one of aluminum, titanium, iron and copper.

[0045] In some of the embodiments, a third mounting groove is provided on one side of the support frame 120 away from the rotating support seat, and a first bearing 122 is installed in the third mounting groove through a fixing member, and the rotation axis of the first bearing 122 is parallel to the vertical main axis 170 and the outer ring of the first bearing 122 is fixedly connected to the middle of the bionic blade 110. This embodiment provides a specific connection method between the support frame and the bionic blade, which is mainly achieved through the first bearing, and the first bearing can be installed in the third mounting groove by bolts penetrating the inner ring of the first bearing and matching with nuts.

[0046] In some of the embodiments, the rotating support seat includes a disc-shaped support seat cover 140 and a support seat body 130, the lower surface of the support seat cover 140 is provided with a plurality of positioning protrusions 141, and the support seat body 130 is provided with positioning holes 131 that match the positioning protrusions 141, and the support seat cover 140 and the support seat body 130 are positioned and connected by the cooperation of the positioning protrusions 141 and the positioning holes 131; the top of the vertical main shaft 170 is fixedly connected to the support seat body 130 through a second coupling. Further, a connecting protrusion is provided on the side of the support frame 120 close to the rotating support seat, and a connecting groove 133 that matches the connecting protrusion is also provided on the upper surface of the support seat body 130, and the connecting protrusion is installed in the connecting groove 133 through a fixing member. In this embodiment, a specific structure of a rotating support seat and a specific connection structure between the support frame and the rotating support seat are provided.

[0047] As described above, at least one embodiment of each part of the vertical axis lift type wind turbine provided by the present invention has been described respectively. It should be noted that the parts of the vertical axis lift type wind turbine can be combined in different embodiments to form different embodiments of the vertical axis lift type wind turbine.

[0048] For example, in a specific overall embodiment, a vertical axis lift type wind turbine includes a wind turbine assembly 100 and a generator assembly 200; the wind turbine assembly 100 includes a bionic blade 110, a support frame 120, a support seat body 130, a support seat top cover 140, a second gear 150, a horizontal push rod 160, a vertical main shaft 170 and a fixed base 180, and the generator assembly includes an installation top cover 210, a rotating disk 220, an FEP film (electronegative film 230), a magnet 240, a coil 250, a copper electrode (positive conductive electrode 260), a fixed disk 270 and an installation bottom cover 280.

[0049] like Figure 3 and Figure 4The bionic blade 110 of the wind turbine assembly 100 is connected to the support frame 120 by a first bolt 121 and a first nut 123, and a miniature first bearing 122 is contained in the middle to ensure the relative rotation and lubrication of the bionic blade 110 and the support frame 120. The support seat body 130 and the support frame 120 are tightly connected by a second bolt 124 and a second nut 125. The horizontal push rod 160 and the bionic blade 110 are tightly connected by a third bolt 161 and a third nut 162, and a miniature second bearing 163 is contained in the middle to ensure the relative rotation and lubrication of the horizontal push rod 160 and the bionic blade 110. The second gear 150 is connected with the miniature third bearing 151 by interference, and the miniature third bearing 151 and the support seat body 130 are also connected by interference.

[0050] The specific implementation is as follows: when the external wind acts on the bionic blade, the bionic blade 110 pushes the support frame 120 and the support seat body 130 to rotate. Since the fixed base 180 always remains fixed, the second gear 150 and the head bevel gear (first gear) of the fixed base 180 are meshed with each other. When the support seat body 130 rotates, the second gear 150 starts to rotate, and at this time, it pushes the horizontal push rod 160 to push the trailing edge of the bionic blade 110 to move forward and backward. Since the position and speed of the horizontal push rod 160 pushing the bionic blade 110 at different rotation angles of the second gear 150 are also different, the bionic blade 110 can adaptively change the angle of attack according to different incoming flow directions to delay the vortex shedding formed by the wind on the blade surface, thereby improving the aerodynamic performance of the wind turbine assembly and further increasing the wind turbine assembly's ability to capture wind energy.

[0051] In this implementation case, if Figures 5 to 9As shown, the support seat body 130 is provided with an upper surface 132, the annular positioning hole 131 and the cylindrical positioning protrusion 141 of the support seat top cover 140 are inserted and matched with each other; the connecting groove 133 and the connecting protrusion of the support frame 120 are interlocked with each other, and the first bolt hole 134 in the connecting groove 133 and the second bolt hole on the connecting protrusion of the support frame 120 are connected by the second bolt 124 and the second nut 125; the first countersunk hole 135 and the miniature third bearing 151 are connected by interference fit; the third bolt hole 136 and the second coupling are connected by bolts; the first through hole 137 and the vertical main shaft 17 0 is fixedly connected by the second coupling; the second nut 125 is embedded in the hexagonal second countersunk hole 138; the third countersunk hole 139 is used to place the second coupling; the second gear 150 and the support seat body 130 are interference-connected on the miniature third bearing 151 which is interference-connected with the support seat body 130 by the first shaft; the second gear 150 and the miniature fourth bearing 152 are interference-connected by the second shaft 181, and the miniature fourth bearing 152 is interference-connected with the horizontal push rod 160; the fifth bearing 190 is interference-connected with the fixed base 180, and the fifth bearing 190 is interference-connected with the vertical main shaft 170. Since the vertical main shaft 170 and the support seat body 130 are fixed together by the second coupling, the vertical main shaft 170 will rotate together with the support seat body 130 and the bionic blade 110 to transfer the external wind energy to the generator assembly 200 in the form of mechanical energy through the vertical main shaft 170.

[0052] like Figures 10 to 12 As shown, the mounting hole 221 is connected to the FEP film by bolts and nuts; the first mounting groove 222 is used to be bonded to the magnet 240; the second through hole 223 is connected to the first coupling by bolts and nuts; the vertical spindle 170 and the rotating disk 220 are fixedly connected by the first coupling 225. The third through hole 224 is used to penetrate the vertical spindle 170. The upper surface 271 of the fixed disk 270 is cut into 10 parts on average, and each part is bonded to the copper electrode with the same size and area; the second mounting groove 272 is bonded to the coil 250; the third through hole 273 is connected to the vertical spindle 170 through the interference fit of the bearing.

[0053] The specific implementation is as follows: when the vertical main shaft 170 transfers energy to the generator assembly 200, the rotating disk 220 rotates with the vertical main shaft 170. At this time, the magnet 240 on the rotating disk 220 rotates relative to the coil 250. The coil 250 is connected to an external load after passing through the power management circuit, so that electric energy is generated on the external load by the Faraday principle; the FEP film on the rotating disk 220 slides relative to the copper electrode, and the adjacent copper electrodes are connected to an external load after passing through the power management circuit to generate electricity by the principle of friction electrification or contact electrification.

[0054] Reference Fig.13The present invention also provides a self-powered wind speed warning system, which includes a wind speed monitoring module, a real-time display module, an alarm, a power management circuit, an energy storage module and a vertical-axis lift-type wind turbine generator (having both a friction nanogenerator module and an electromagnetic generator module) using a composite power generation method provided by the present invention.

[0055] The wind speed monitoring module is electrically connected to the friction nanogenerator module in the vertical axis lift type wind turbine, and the wind speed monitoring module is configured to monitor the frequency of the electrical signal generated by the friction nanogenerator module and convert it into the corresponding wind speed; the real-time display module is electrically connected to the wind speed monitoring module, and the real-time display module is configured to display the wind speed in real time; the alarm is electrically connected to the wind speed monitoring module, and the alarm is configured to trigger an alarm action when the wind speed is greater than a threshold value; the energy storage module is electrically connected to the friction nanogenerator module and the electromagnetic generator module in the vertical axis lift type wind turbine through a power management circuit, and the energy storage module is configured to store electrical energy and provide electrical energy to the real-time display module and the alarm.

[0056] The wind energy is converted into mechanical energy for the power generation module through the bionic wind turbine component. The wind speed monitoring module can identify the different frequencies corresponding to different wind speeds on the friction nanogenerator module, thereby monitoring the wind speed in real time. At the same time, the electric energy collected by the friction nanogenerator module is stored in the energy storage element through the power management circuit; the electromagnetic generator module stores the electric energy in the energy storage element through the power management circuit, and the energy storage element uniformly distributes the electric energy to the wind speed monitoring module, the wind speed real-time display module and other sensors. It should be noted that when the wind speed is low, the wind speed monitoring module will display the wind speed on the LED screen in real time. When the wind speed reaches the warning value, the alarm will automatically call the staff for warning. On the other hand, since the electromagnetic generator generates very low electric energy at low wind speed, the Ampere force generated is negligible, and the negative torque generated by the bionic wind turbine is minimal; when the wind speed is high, the electromagnetic generator generates a large amount of electric energy. At this time, the Ampere force is large, and the negative torque generated on the bionic wind turbine is large, so the speed of the bionic wind turbine will be reduced, thereby playing the role of wind speed overload protection of the wind turbine.

[0057] In a specific embodiment, the self-powered wind speed warning system includes:

[0058] The bionic wind turbine assembly consists of a bionic blade, a pitch mechanism and a connecting seat. The pitch mechanism consists of a fixed frame, a push rod, a bevel gear, a rotating support seat and a fixed base. The bionic blade introduces a raised nodule on the leading edge of the blade according to the raised structure of the humpback whale's pectoral fin, and the trailing edge of the blade adopts the internationally commonly used NACA 0018 airfoil structure; the pitch structure simulates the change of the blade's angle of attack according to the swinging posture of the humpback whale's pectoral fin during movement. The raised nodule on the leading edge of the blade and the pitch structure adaptively change the blade's angle of attack, effectively delaying the shedding of wind energy from the vortex on the blade surface, improving the aerodynamic performance of the wind turbine, and thus increasing the energy capture efficiency.

[0059] The composite generator assembly consists of a stator unit and a rotor unit. The inner ring of the stator unit contains four coils connected head to tail and a base surrounding the coils, and the outer ring contains five pairs of copper electrodes and a base supporting the copper electrodes. The rotor contains a rotating bracket, the inner ring of which has four NS-relative permanent magnets, and the outer ring contains five FEP (perfluoroethylene propylene copolymer) films. The inner ring of the power generation module is an electromagnetic generator composed of coils and permanent magnets, and the outer ring is a friction nanogenerator in an independent layer mode composed of FEP film and copper electrodes.

[0060] Among them, a bearing is embedded inside the fixed frame, and the bearing and the leading edge of the bionic blade form an interference connection through bolts and nuts to ensure that the bionic blade can rotate freely; the trailing edge of the bionic blade and the push rod still use an interference connection of bearings and bolts and nuts to ensure the relative movement of the bionic blade and the push rod; the push rod and the bevel gear use an interference connection of bearings and bolts, and when the bevel gear rotates, the push rod can effectively push the trailing edge of the blade to move; the fixed frame and the rotating support seat are connected by bolts and nuts to maintain the fixation of the fixed frame and the rotating seat; the rotating support seat and the bevel gear use an interference connection of bearings and shafts; the rotating support seat is equipped with a flange coupling, which is fixed to the main shaft to ensure that the main plane of the rotating support seat is perpendicular to the main shaft; the fixed base is equipped with a bearing connected to the main shaft, and the distance between the rotating support seat and the connecting seat is determined by a limit ring; the head of the fixed base is a bevel gear structure, which meshes with the bevel gear of the rotating support seat, and the fixed base and the top cover are fixed by bolts and nuts. When wind acts on the blades, the blades and components such as the rotating support seat begin to rotate. Since the bevel gear and the bevel gear connected to the seat head engage with each other, the bevel gear begins to rotate. The rotation of the bevel gear drives the push rod to push the trailing edge of the blade to move, thereby realizing the function of the blade simulating the flapping of the humpback whale's pectoral fin.

[0061] The rotating bracket of the rotor in the composite generator assembly is connected to the main shaft with a flange coupling, and the inner ring is fixed to the inside of the countersunk hole with a countersunk magnet; the outer ring uses a bolt and nut structure to fix the FEP film on the rotating bracket. The inner ring of the stator part connects the coil head to tail and finally connects the external wire to both ends of the load, and the coil is fixed with a base; a layer of copper electrodes is pasted on the outer ring bottom plate, and the copper electrodes are connected with wires at intervals, and finally the load is connected externally.

[0062] The inner circle of the power generation component is an electromagnetic generator. When the rotating bracket rotates, the magnet begins to cut the magnetic lines of force of the closed coil, thereby generating an induced electromotive force and forming an alternating current. The outer circle of the power generation component is a friction nanogenerator in an independent layer mode. When the rotating bracket rotates, the FEP film and the nylon attached to the stator rotate relative to each other. Due to the principles of friction electrification and contact electrification, opposite charges are generated between adjacent copper electrodes and an alternating current signal is generated through an external load.

[0063] When the external wind acts on the bionic blade, the wind drives the blade to rotate around the main axis, and the helical gear on the rotating support seat starts to rotate, driving the push rod on the helical gear to push the trailing edge of the blade to swing. From the wind action to the leading edge of the bionic blade to the adaptive swing of the blade to change the blade attack angle, the whole process simulates the movement process of the humpback whale's pectoral fin to achieve the purpose of delaying the shedding of vortices on the blade surface, thereby improving the aerodynamic performance of the wind turbine and the output performance of the overall generator.

[0064] The optimized design of the bionic wind turbine enables the main shaft to have a higher speed and torque than traditional lift-type wind turbines at the same wind speed. When the energy of the main shaft is transferred to the generator assembly, the combination of the electromagnetic generator and the friction nanogenerator on the inner and outer rings of the generator makes the generator assembly have higher electrical performance than a single power generation assembly in both low and high speed conditions. The electrical energy collected by the power generation assembly is transferred to the energy storage element through the power management circuit for the wind speed warning and other sensors to work.

[0065] In summary, the present invention proposes a self-powered wind speed warning system for collecting broadband wind energy in all wind directions, which is used for efficiently collecting broadband wind energy in all directions and self-powered wind speed warnings and other sensors. The efficient energy collection of the self-powered wind speed warning system improves the conversion efficiency of the wind energy of the self-powered wind speed warning system into mechanical energy that can be collected by imitating the structure and swinging posture of the pectoral fins of the humpback whale; further, by combining the electromagnetic generator and the friction nanogenerator into a power generation component, the energy of different wind speeds transmitted by the bionic wind turbine can be efficiently converted; finally, the use of electrical energy for wind speed warnings and other sensors for natural disasters through power management circuits has potential application value, further promoting the development of distributed energy in broadband wind speed collection in all wind directions.

[0066] The present invention also provides a real-time weather station monitoring system, which includes the self-powered wind speed warning system provided by the present invention. Specifically, when external wind energy acts on the bionic wind turbine, the bionic wind turbine can capture wind energy more efficiently and convert the wind energy into mechanical energy that can be used by the power generation component. The mechanical energy converted by the power generation component is transmitted to the micro weather station through the power management circuit, thereby realizing real-time monitoring of the weather station.

[0067] Reference Fig.14 The present invention also provides a real-time weather station monitoring system, which includes a micro weather station, a power management circuit, and a vertical axis lift type wind turbine provided by the present invention. The vertical axis lift type wind turbine supplies power to the micro weather station through the power management circuit.

[0068] It should be understood that the specific embodiments described herein are only used to explain the application, rather than to limit it. Based on the embodiments provided in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of this application.

[0069] Obviously, the drawings are only some examples or embodiments of the present application. For ordinary technicians in the field, the present application can also be applied to other similar situations based on these drawings without creative work. In addition, it is understandable that although the work done in this development process may be complicated and lengthy, for ordinary technicians in the field, certain changes in design, manufacturing or production based on the technical content disclosed in this application are only conventional technical means and should not be regarded as insufficient content disclosed in this application.

Claims

1. A self-powered wind speed warning system, characterized in that: The self-powered wind speed warning system includes a wind speed monitoring module, a real-time display module, an alarm, a power management circuit, an energy storage module and a vertical axis lift type wind turbine; The wind turbine generator comprises a wind turbine component and a generator component; The wind turbine assembly comprises a rotating support seat, a first gear, a vertical main shaft and a fixed base, and a plurality of blade assemblies, each blade assembly comprising a bionic blade, a support frame, a second gear and a horizontal push rod; The leading edge of the bionic blade introduces a convex nodule according to the convex structure of the pectoral fin of a humpback whale, and the trailing edge of the bionic blade adopts a NACA 0018 airfoil structure; The vertical main shaft is rotatably mounted inside the fixed base and the top of the vertical main shaft extends out of the top of the fixed base, the rotating support seat is coaxially fixedly connected to the top of the vertical main shaft, and the first gear is fixedly connected to the top of the fixed base and coaxial with the vertical main shaft; A plurality of groups of blade assemblies are distributed at equal intervals around the vertical main axis; In each group of the blade assemblies, the second gear is meshed with the first gear and is rotatably mounted on the lower surface of the rotating support seat, the support frame is fixedly mounted on the peripheral side of the rotating support seat, the middle portion of the bionic blade is rotatably connected to a side of the support frame away from the rotating support seat, and the rotation axis is parallel to the vertical main axis, and the two ends of the horizontal push rod are respectively rotatably connected to the trailing edge of the bionic blade and the side portion of the second gear, and the rotation axis is parallel to the vertical main axis; The generator assembly includes a rotor portion and a stator portion; The stator part is fixedly mounted on the bottom of the fixed base, the rotor part is rotatably mounted on the bottom of the fixed base and is coaxially fixedly connected to the bottom end of the vertical main shaft, and the generator assembly generates electricity through relative rotation between the rotor part and the stator part; The rotor part includes a rotating disk, and the stator part includes a fixed disk; The rotating disk is coaxially fixedly connected to the bottom end of the vertical main shaft, and the fixed disk is located directly below the rotating disk and is fixedly connected to the bottom of the fixed base; A magnet is installed on the rotating disk, and a coil is installed in the middle of the fixed disk, and the coil is directly below the magnet; The magnet and the coil constitute an electromagnetic generator module; The circumference of the rotating disk is evenly fixedly connected with a rotating rod, the rotating rod is mounted with an electronegative film, and the upper surface of the fixed disk is mounted with a positive conductive electrode. During the rotation of the rotating disk, the electronegative film is in frictional contact with the positive conductive electrode. The electronegative film and the positive conductive electrode constitute a friction nanogenerator module; The wind speed monitoring module is electrically connected to the friction nanogenerator module in the vertical axis lift type wind turbine, and the wind speed monitoring module is configured to monitor the frequency of the electrical signal generated by the friction nanogenerator module and convert it into a corresponding wind speed; The real-time display module is electrically connected to the wind speed monitoring module, and the real-time display module is configured to display the wind speed in real time; The alarm is electrically connected to the wind speed monitoring module, and the alarm is configured to trigger an alarm action when the wind speed is greater than a threshold; The energy storage module is electrically connected to the friction nanogenerator module and the electromagnetic generator module in the vertical axis lift type wind turbine through the power management circuit, and the energy storage module is configured to store electrical energy and provide electrical energy for the real-time display module and the alarm.

2. The self-powered wind speed warning system according to claim 1, characterized in that: The bottom end of the vertical main shaft is fixedly connected to the rotating disk through a first coupling. The rotating disk is provided with a first mounting groove, and the magnet is fixedly installed in the first mounting groove. A second mounting groove is provided in the middle of the fixed disk, and the coil is fixedly installed in the second mounting groove.

3. The self-powered wind speed warning system according to claim 1, characterized in that: The material of the electronegative film comprises one of polyimide, perfluoroethylene-propylene copolymer and fluorinated ethylene-propylene copolymer; The material of the positively conductive electrode includes one of aluminum, titanium, iron and copper.

4. The self-powered wind speed warning system according to claim 1, characterized in that: A third mounting groove is provided on a side of the support frame away from the rotating support seat, and a first bearing is installed in the third mounting groove through a fixing member. The rotation axis of the first bearing is parallel to the vertical main axis and the outer ring of the first bearing is fixedly connected to the middle part of the bionic blade.

5. The self-powered wind speed warning system according to claim 1, characterized in that: The rotating support seat comprises a disc-shaped support seat top cover and a support seat body, a plurality of positioning protrusions are arranged on the lower surface of the support seat top cover, and a positioning hole cooperating with the positioning protrusions is arranged on the support seat body, and the support seat top cover and the support seat body are positioned and connected by the cooperation of the positioning protrusions and the positioning holes; The top end of the vertical main shaft is fixedly connected to the support seat body through a second coupling.

6. The self-powered wind speed warning system according to claim 5, characterized in that: A connecting protrusion is provided on one side of the support frame close to the rotating support seat, and a connecting groove matching the connecting protrusion is also provided on the upper surface of the support seat body, and the connecting protrusion is installed in the connecting groove through a fixing piece.

7. A real-time weather station monitoring system, characterized in that: The real-time weather station monitoring system comprises the self-powered wind speed warning system according to any one of claims 1-6.

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