A wind energy collection device

Abstract

The present disclosure discloses a wind energy collection device, comprising a wind transmission mechanism and a friction power supply mechanism driven by the wind transmission mechanism. The wind transmission mechanism is provided with a plurality of one-way opening and closing blades. When the wind in the environment flows through the one-way opening and closing blades, the wind acts on the closed blades through the opening and closing blades to generate an eccentric rotating couple and drive the wind transmission mechanism to rotate. The friction power supply mechanism includes an upper friction power supply unit and a lower friction power supply unit that move synchronously. The upper friction power supply unit includes an independent friction layer cylindrical TENG and an electrostatic induction component arranged inside and outside, realizing the conversion of kinetic energy and electrical energy based on the triboelectric and electrostatic induction mechanisms. The lower friction power supply unit adopts an independent friction layer disc-shaped TENG. The starting wind speed required for the device disclosed in the present disclosure is low, which improves the utilization rate of wind energy. The device integrates two friction power supply units and has a high energy conversion rate.

Description

Technical Field

[0001] The present disclosure relates to the technical field of wind energy collection, and in particular to a wind energy collection device. Background Art

[0002] With the advent of the Internet of Things (IoT), big data, and artificial intelligence, distributed sensors, various wearable electronic products, and information transmission networks are becoming widely used in our daily lives. Currently, various batteries, particularly lithium batteries, are widely used to power these electronic devices due to their mature processing technology. However, chemical batteries suffer from disadvantages such as limited capacity and lifespan, frequent charging, the need for a rechargeable power source, and difficulty in recycling. Consequently, efforts are underway to explore and develop alternative renewable and clean energy technologies to provide a sustainable power supply. For example, environmental mechanical energy, such as wind energy, possesses widespread and abundant reserves and holds great potential as an ideal renewable energy source. In recent years, researchers have designed a variety of harvesters based on various physical effects, including the photoelectric effect, magnetoelectric effect, piezoelectric effect, and triboelectric effect, to harvest wind and other mechanical energy. Among these, triboelectric nanogenerator (TENG) technology has attracted increasing attention due to its unique advantages, including low cost, ease of fabrication, diverse material options, and high efficiency at low frequencies.

[0003] TENG technology, used for energy harvesting, such as wind power, operates based on the coupling effect of triboelectric charging and electrostatic induction, with its theoretical foundation being the Maxwell displacement current. Thanks to the efforts of numerous researchers, it has become a promising new technology with widespread applications in micro-nano energy, self-powered sensors, marine energy, and high-voltage applications. However, it also faces challenges such as low surface charge density due to surface contact, dust generated by dielectric friction, and soft contact between thin film materials. In 2018, the international journal Nano Energy, Vol. 49, No. 1, pp. 625-633, reported the first report of a charge pump technology that increases the surface charge density of a TENG and significantly enhances its output performance. The charge pump unit acts as a charge source, generating charge that is regulated by a rectifier and then pumped out and injected into the main TENG to increase the surface charge density of the electrodes. Furthermore, in 2020, the international journal Advanced Energy Materials, Vol. 10, No. 21, p. 2000605, reported converting the contact-separation mode into a rotary-sliding TENG with a charge pump, further improving its output performance in practical applications. A more compact rotary-sliding TENG (Teng) was also reported in the 2023 international journal Advanced Energy Materials, Vol. 13, No. 43, p. 2301832. This design utilizes a suspended electrostatic induction method to output electrical energy, eliminating material friction and wear. However, these charge pumps all utilize flat plates, requiring large horizontal installation space. This volume restriction precludes the design of large pumps. Furthermore, the structural scalability is limited by the interlocking constraints between the pump TENG and the main TENG. Furthermore, the dielectric material in these TENGs generates dust during contact and friction, which reduces the contact area and increases material wear. Furthermore, these devices often utilize soft film contacts within the TENG, which can lead to poor contact of the rotating film during high-speed operation. Therefore, adopting new design approaches that integrate charge pump technology to achieve a more compact and scalable structure while addressing the issues of dust generation and soft contact is necessary and challenging.

[0004] Existing technology:

[0005] 1.Xu L.,Bu TZ,Yang XD,et al.Ultrahigh charge density realized bycharge pumping at ambient conditions for triboelectric nanogenerators[J].NanoEnergy,2018,49:625-633. https: / / doi.org / 10.1016 / j.nanoen.2018.05.011

[0006] 2.Bai Y.,Xu L.,Lin S.,et al.Charge pumping strategy for rotation and sliding type triboelectric nanogenerators[J].Advanced Energy Materials, 2020,10(21):2000605.

[0007] https: / / doi.org / 10.1002 / aenm.202000605

[0008] 3. Lu S., Li H., Xie Y., et al. High-performance and durable rotational triboelectric nanogenerator leveraging soft-contact coplanar charge pumping strategy [J]. Advanced Energy Materials, 2023, 13(43): 2301832.

[0009] https: / / doi.org / 10.1002 / aenm.202301832 Summary of the Invention

[0010] The present disclosure aims to solve at least one of the technical problems existing in the prior art.

[0011] To this end, the present invention provides a wind energy collection device. This device is based on the coupling mechanism of friction electricity and electrostatic induction, adopts a charge pump and non-contact electric induction output method, integrates dust sweeping and elastic support functions, and aims to improve the service life and electrical output performance of the device, and apply it to wind energy collection.

[0012] To achieve the above objectives, the present disclosure adopts the following technical solutions:

[0013] The present disclosure provides a wind energy collection device comprising:

[0014] A wind power transmission mechanism includes a blade connector, a transmission end, and a plurality of one-way opening and closing blades. The one-way opening and closing blades are evenly distributed around the circumference of the blade connector. The transmission end is connected to the blade connector. When wind in the environment flows through the one-way opening and closing blades, the wind acts on the closed blades through the opening and closing blades to generate an eccentric rotational couple and drive the wind power transmission mechanism to rotate.

[0015] The friction power supply mechanism includes a housing and an upper friction power supply unit and a lower friction power supply unit located therein and arranged coaxially with each other, wherein the upper friction power supply unit and the lower friction power supply unit are synchronously driven by the transmission end to convert kinetic energy into electrical energy;

[0016] The housing comprises a top plate, a bottom plate and side walls that are fixedly connected, the transmission end passes through the top plate and is rotatably connected to the top plate, and the bottom plate is fixedly connected to the bottom end of the central shaft;

[0017] The upper friction power supply unit includes an independent friction layer cylindrical TENG and an electrostatic induction component arranged in sequence from the inside to the outside, and a boost rectifier circuit connected therebetween; the electrostatic induction component includes a mover induction electrode and a stator induction electrode arranged in sequence from the inside to the outside without contact, the mover induction electrode is fixed on the mover of the cylindrical TENG and together constitutes the mover part of the upper friction power supply unit connected to the transmission end, the stator induction electrode is fixed on the stator of the cylindrical TENG and together constitutes the stator part of the upper friction power supply unit and is fixedly connected to the side wall of the shell, the cylindrical TENG converts the kinetic energy output by the transmission end into electrical energy, and the electrical energy is injected into the electrostatic induction component in the form of charge after the action of the boost rectifier circuit to increase the charge density on the surface of the induction electrode therein, and outputs electrical energy to the outside based on the electrostatic induction mechanism of the mover induction electrode and the stator induction electrode;

[0018] The lower friction power supply unit adopts an independent friction layer disc-shaped TENG, including a mover and a stator arranged in sequence from top to bottom. The mover of the disc-shaped TENG is fixedly connected to the mover of the cylindrical TENG, and the stator of the disc-shaped TENG is fixedly connected to the bottom plate of the shell. The disc-shaped TENG converts the kinetic energy output by the transmission end into electrical energy for external output.

[0019] In some embodiments, at least three of the one-way opening and closing blades are provided in the wind transmission mechanism, and the one-way opening and closing blades include a blade frame fixedly connected to the blade connector and a blade body connected to the blade frame in one-way opening and closing via a hinge, and the hinge is located on the side of the blade frame away from the blade connector; under the action of wind, there is at least one one-way opening and closing blade in the wind transmission mechanism which is in a closed state due to the blocking effect of the baffle, and at the same time there is at least one one-way opening and closing blade in an open state, thereby forming the eccentric force couple between the one-way opening and closing blades.

[0020] In some embodiments, a spring is further provided between the blade frame and the blade body, and the opening and closing angle of the blade is changed by changing the stiffness of the spring, thereby controlling the rotational speed of the transmission end.

[0021] In some embodiments, the cylindrical TENG includes an upper transmission member, an upper baffle, a first substrate, a second substrate and a lower baffle arranged along a co-central axis, the upper transmission member is fixedly connected to the transmission end, and the upper transmission member is rotatably connected to the top of the central axis, the first substrate is cylindrical, the upper transmission member and the first substrate are respectively fixed to the upper and lower sides of the upper baffle, the bottom end of the first substrate passes through the lower baffle, the second substrate is located inside the first substrate and the second substrate is fixedly sleeved on the central axis, the lower baffle is fixedly supported on the side wall of the shell, the first electrode and the first friction layer are stacked in sequence from the outside to the inside on the inner side wall of the first substrate, and the buffer layer and the second friction layer are stacked in sequence from the inside to the outside on the outer side wall of the second substrate, and the first friction layer is in close contact with the second friction layer during the rotation of the first substrate.

[0022] In some embodiments, the first electrode is an interdigitated electrode that is cylindrical in shape.

[0023] In some embodiments, the second substrate is composed of a second cylinder with upper and lower openings and a plurality of T-shaped structures integrally formed on the outer surface of the second cylinder and evenly distributed around the circumference. The vertical section of the T-shaped structure is arranged along the radial direction of the second cylinder, and the horizontal section of the T-shaped structure is arc-shaped and is arranged away from the outer surface of the second cylinder. The buffer layer and the second friction layer are attached to the side of the horizontal section of the T-shaped structure facing the first substrate.

[0024] In some embodiments, the electrostatic induction component is arranged on the periphery of the cylindrical TENG, including at least one induction electrode pair, and adjacent induction electrode pairs are arranged at intervals. The induction electrode pair consists of a mover induction electrode and a stator induction electrode arranged at intervals. The mover induction electrode and the stator induction electrode both adopt interdigitated electrodes that are cylindrical as a whole, and are respectively attached to the two side walls of the first electrode substrate and the second electrode substrate where they are opposite to each other. A first dielectric layer and a second dielectric layer are also respectively attached to the surfaces where the mover induction electrode and the stator induction electrode are opposite to each other. The top of the first electrode substrate is fixedly connected to the upper baffle, and the bottom end of the first electrode substrate is a free end. The bottom end of the second electrode substrate is fixedly connected to the lower baffle, and the top of the second electrode substrate is a free end. When the first electrode substrate rotates with the upper baffle, the first dielectric layer and the second dielectric layer do not contact.

[0025] In some embodiments, the disc-shaped TENG includes a lower rotor connector and a third substrate and a fourth substrate that are spaced apart and are both disc-shaped. The third substrate is fixedly connected to the bottom end of the mover of the cylindrical TENG through the lower rotor connector. A plurality of fan blades uniformly distributed around the circumference are provided on the side of the third substrate facing the fourth substrate. The top of each fan blade is fixed in a corresponding slot of the third substrate. The axial direction of the slot is arranged along the radial direction of the third substrate. The fan blades are divided into first fan blades and second fan blades. Both types use flexible steel sheets as the fan blade body. A third friction layer is attached to the surface of the flexible steel sheet of the blade, and a cleaning adsorption layer formed by a porous flexible material is attached to the surface of the flexible steel sheet of the second fan blade facing the fourth substrate; the fourth substrate and the bottom plate of the shell are fixed to the bottom end of the central axis, and a plurality of gray slots evenly distributed around the circumference are opened on the fourth substrate, and the axial direction of each gray slot is arranged along the radial direction of the fourth substrate. A second electrode and a fourth friction layer are stacked in sequence from bottom to top on the side of the fourth substrate facing the third substrate and avoiding the gray slots. During the rotation of the third substrate, the third friction layer is in close contact with the fourth friction layer.

[0026] In some embodiments, the second electrode is an interdigitated electrode that is generally annular, and the porous flexible material is flannel or a thin sponge.

[0027] In some embodiments, the wind energy collection device further includes a gantry for supporting the wind transmission mechanism and the friction power supply mechanism.

[0028] The present disclosure has the following beneficial effects:

[0029] This invention innovatively proposes a wind energy collection device in which a wind energy transmission mechanism captures wind power, converting it into kinetic energy. The kinetic energy output by the wind energy transmission mechanism drives a friction power supply mechanism, converting it into electrical energy. The unidirectional opening and closing blades in the wind energy transmission mechanism utilize their asymmetric opening and closing states to form an eccentric force couple, which serves as the rotational force of the device, reducing the starting wind speed and improving wind energy utilization. The friction power supply mechanism incorporates two different friction power supply units. The upper friction power supply unit is an integrated frame structure that incorporates a cylindrical TENG and non-contact annular interdigital electrodes. It uses a charge pump-type charge output to increase surface charge density and output electrical energy through non-contact electrostatic induction. The lower friction power supply unit utilizes a velvet fan blade and steel sheet structure with dust sweeping and elastic support. During rotation, it generates electricity while simultaneously sweeping away generated wear debris, reducing wear between the contact surfaces and ensuring effective contact between the rotor and stator at high speeds, thereby increasing the service life and output performance of the lower friction power supply unit. This wind energy collection device significantly improves its electrical performance through the dual coupling of triboelectricity and non-contact electrostatic induction. The wind energy collection device can be fixed by a gantry and placed in natural environments such as land, forests, and deserts. In addition to the one-way opening and closing blades that feedback wind force, the cylindrical shape of its power generation part can achieve structural encapsulation to prevent the entry of external dust, thereby increasing its durability and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the overall structure of a wind energy collection device provided in an embodiment of the present disclosure;

[0031] Figure 2 for Figure 1 An exploded schematic diagram of the overall structure of the wind energy collection device shown;

[0032] Figure 3 for Figure 1 An exploded schematic diagram of the structure of the wind power transmission mechanism in the wind energy collection device shown;

[0033] Figure 4 for Figure 1 Schematic diagram of the working principle of the wind power transmission mechanism in the wind energy collection device shown;

[0034] Figure 5 for Figure 1 Schematic diagram of the explosion structure of the upper friction power supply unit in the wind energy collection device shown;

[0035] Figure 6 for Figure 5 A schematic structural diagram of the second substrate in the upper friction power supply unit is shown;

[0036] Figure 7 for Figure 1 Schematic diagram of the explosion structure of the lower friction power supply unit in the wind energy collection device shown;

[0037] Figure 8 for Figure 7 A schematic structural diagram of the fourth substrate and the second electrode thereon in the lower friction power supply unit shown;

[0038] Figure 9 for Figure 5 Schematic diagram of the basic working principle of the friction power supply unit shown above;

[0039] Figure 10 a) and b) are the output voltage amplitude comparison diagram and output current amplitude comparison diagram of the upper friction power supply unit with and without the charge pump respectively;

[0040] Figure 11 Figures a and b show the output current amplitude comparison and output voltage amplitude comparison of the friction power supply unit with and without dust sweeping, respectively;

[0041] Figure 12 a and b are Figure 1 A total output voltage curve and a total output current curve of the wind energy collection device shown;

[0042] Figure 13 a and b are Figure 1 The total peak power curve and average power curve of the wind energy collection device shown; in the figure:

[0043] 10. Wind power transmission mechanism; 101. One-way opening and closing blade; 1011. Blade frame; 1012. Hinge; 1013. Blade body; 102. Spring; 103. Baffle; 104. Blade connector; 1041. First step shaft; 1042. Mounting plate; 105. Bearing; 106. Support member; 107. Coupling; 108. Upper rotor connector;

[0044] 20. Friction power supply mechanism; 200. Upper friction power supply module; 201. Upper transmission member; 202. Washer; 203. Latch; 204. Upper baffle; 2041. First slot; 205. First substrate; 206. Second substrate; 2061. Second cylinder; 2062. T-shaped structure; 2062a. Vertical section; 2062b. Horizontal section; 207. Lower baffle; 208. Buffer layer; A1. First electrode; B1. First friction layer; B2. Second friction layer; 209. First electrode substrate; 210. Second electrode substrate; E1. Mover induction electrode; E2. Stator induction electrode; D1. First medium Dielectric layer; D2. Second dielectric layer; 211. Diode; 212. Electrolytic capacitor; 213. Zener diode; 300. Lower friction power supply unit; 301. Lower rotor connector; 302. Third substrate; 3021. Second slot; 303. Fourth substrate; 3031. Gray seam; 304. Flexible steel sheet; 305. Cleaning adsorption layer; A2. Second electrode; B3. Third friction layer; B4. Fourth friction layer; 400. Housing; 401. Top plate; 402. Bottom plate; 403. Side wall; 404. Slot; 405. Support block; 500. Center axis; 501. Flange; 600. Power output terminal;

[0045] 30. Gantry; 31. Aluminum profile; 32. Platform. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0047] On the contrary, this application covers any alternatives, modifications, equivalents, and solutions made within the spirit and scope of this application as defined by the claims. Furthermore, to facilitate a better understanding of this application, certain specific details are described in detail below in the detailed description of this application. Those skilled in the art will be able to fully understand this application without these details.

[0048] See also Figures 1 to 9 , an embodiment of the present disclosure provides a wind energy collection device, comprising:

[0049] The wind transmission mechanism 10 includes a blade connector 104, a transmission end, and a plurality of one-way opening and closing blades 101. Each one-way opening and closing blade 101 is evenly distributed around the blade connector 104. The transmission end is connected to the blade connector 104. When the wind in the environment flows through the one-way opening and closing blades 101, the wind acts on the closed blades through the opening and closing blades to generate an eccentric rotational couple and drive the wind transmission mechanism 10 to rotate.

[0050] The friction power supply mechanism 20 includes a housing 400 and an upper friction power supply unit 200 and a lower friction power supply unit 300 located therein and arranged coaxially with a central axis 500. The upper friction power supply unit 200 and the lower friction power supply unit 300 are synchronously driven by the transmission end of the wind power transmission mechanism 10 to convert kinetic energy into electrical energy.

[0051] The housing 400 includes a top plate 401, a bottom plate 402, and side walls 403 that are fixedly connected. The transmission end of the wind power transmission mechanism 10 passes through the top plate 401 and is rotatably connected to the top plate 401 via the bearing 105. The bottom plate 402 is fixedly connected to the bottom end of the central shaft 500.

[0052] The upper triboelectric power supply unit 200 includes an independent friction layer cylindrical TENG and an electrostatic induction component arranged in sequence from the inside to the outside, and a boost rectifier circuit (VBC) connected between the cylindrical TENG and the electrostatic induction component; the electrostatic induction component includes a non-contact mover induction electrode and a stator induction electrode arranged in sequence from the inside to the outside. The mover induction electrode is fixed on the mover of the cylindrical TENG and together constitutes the mover part of the upper triboelectric power supply unit 200 connected to the transmission end. The stator induction electrode and the stator of the cylindrical TENG together constitute the stator part of the upper triboelectric power supply unit 200 and are fixedly connected to the side wall 403 of the shell 400. The cylindrical TENG converts the kinetic energy output by the transmission end into electrical energy. The charge output after the boost rectifier action of the VBC is injected into the electrostatic induction component to increase the charge density on the surface of the induction electrode inside it, and outputs electrical energy to the outside based on the electrostatic induction mechanism of the mover induction electrode and the stator induction electrode.

[0053] The lower friction power supply unit 300 adopts an independent friction layer disc-shaped TENG, including a mover and a stator arranged in sequence from top to bottom. The mover of the disc-shaped TENG is fixedly connected to the mover of the cylindrical TENG, and the stator of the disc-shaped TENG is fixedly connected to the bottom plate 402 of the shell 400. The disc-shaped TENG converts the kinetic energy output by the transmission end into electrical energy for external output.

[0054] In some embodiments, see Figure 3 The wind transmission mechanism 10 mainly consists of a number of one-way opening and closing blades 101 that receive wind power and rotate, while driving corresponding components to rotate. It is mainly used to transmit wind power and convert the captured wind energy into kinetic energy output. The wind transmission mechanism 10 includes a blade connector 104, a transmission end, and at least three one-way opening and closing blades 101 (the number of one-way opening and closing blades 101 can be set to other numbers according to actual needs, generally set to 3 to 5, preferably 3). Among them:

[0055] The blade connector 104 consists of a hollow first stepped shaft 1041 and three mounting plates 1042 integrally formed on the outer surface of the first stepped shaft 1041. The three mounting plates 1042 are evenly distributed around the circumference and the plate surfaces are arranged along the radial direction of the first stepped shaft 1041. Each one-way opening and closing blade 101 is fixedly connected to a corresponding mounting plate 1042 by a bolt to realize the installation of the blade. The bottom end of the first stepped shaft 1041 is fixedly connected to the upper part of the transmission end.

[0056] The structures of the three one-way opening and closing blades 101 are the same, and one of them is taken as an example for explanation. The one-way opening and closing blade 101 includes a U-shaped blade frame 1011 and a blade body 1013 that is connected to the blade frame 1011 in a one-way opening and closing manner through a hinge 1012, and the hinge 1012 is located on the side of the blade frame 1011 away from the mounting plate 1042. A baffle 103 is provided on the side of the blade frame 1011 close to the mounting plate 1042, and a spring 102 is provided between the blade frame 1011 and the blade body 1013, so that under the action of wind, at least one one-way opening and closing blade 101 among all the blades of the wind transmission mechanism 10 is blocked by the baffle 103 and is in a closed state, and at the same time, at least one one-way opening and closing blade 101 is in an open state, thereby forming an eccentric force couple between the one-way opening and closing blades 101, providing rotational power for the entire wind energy collection device. Specifically, see Figure 4 , when the wind blows towards the one-way opening and closing blade 101 from any direction, for example perpendicular to the paper surface and inward ( Figure 4 The “↑” in the figure is the wind direction perpendicular to the paper surface). Under the action of the baffle 103, hinge 1012 and spring 102, Figure 4 The blade on the left is in a closed state, and the blade on the right is in an open state. In this way, the wind force component F1 received by the left blade is not zero, and the force received by the right blade is approximately zero. The total force F of the wind will generate an eccentric force couple between all the one-way opening and closing blades 101, which serves as a clockwise rotational force. At the same time, as the blades continue to rotate, the right blade gradually closes under the action of the spring 102, and the blade originally on the left moves to the right and gradually opens. Therefore, there is always an eccentric force couple to ensure that the blades rotate in the same direction, providing power, reducing the starting wind speed, and improving the utilization rate of wind energy. In addition, the opening and closing angle of the blades can be changed by changing the stiffness of the spring 102, thereby controlling the speed and rotational force of the blades and the transmission end.

[0057] The transmission end is located at the bottom of the wind power transmission mechanism 10 and serves as the power output end of the wind power transmission mechanism 10 to drive the movable part of the friction power supply mechanism 20. The transmission end includes a coupling 107 and an upper rotor connecting member 108. The upper portion of the coupling 107 is fixedly connected to the bottom end of the first stepped shaft 1041 in the blade connecting member 104, and the lower portion of the coupling 107 is fixedly connected to the upper portion of the upper rotor connecting member 108. The lower portion of the upper rotor connecting member 108 is rotatably connected to the top plate 401 of the housing 400 via a bearing 105 installed at the center of the top plate 401.

[0058] In some embodiments, the friction power supply mechanism 20 serves as the power generation portion of the device of this embodiment, converting the kinetic energy output by the wind power transmission mechanism 10 into electrical energy for output. The friction power supply mechanism 20 is provided with two friction power supply units. The stator portions of the two friction power supply units are supported and fixed by the housing 400 and the central shaft 500. The moving components within the two friction power supply units are synchronously driven by the transmission end of the wind power transmission mechanism 10, thereby generating corresponding electrical energy, which is aggregated to the power output end 600 for use by the load. Among them:

[0059] The top plate 401 and bottom plate 402 of the housing 400 are both circular plates. A hole for mounting the bearing 105 is provided at the center of the top plate 401. The inner ring of the bearing 105 is fixedly connected to the lower portion of the upper rotor connector 108, and the outer ring of the bearing 105 is fixedly connected to the center hole of the top plate 401. The sidewall 403 of the housing 400 is composed of a plurality of strip-shaped plates evenly distributed around the circumference. A plurality of slots 404 are provided on the outer peripheries of the top plate 401 and bottom plate 402. The top and bottom ends of the sidewall 403 are respectively inserted into the corresponding slots 404, thereby securing the sidewall 403 to the top plate 401 and bottom plate 402. In a specific embodiment of the present application, the central shaft 500 is a stainless steel rod, the top plate 401 and bottom plate 402 are laser-cut acrylic circular plates, and the sidewall 403 is a strip-shaped structure formed by 3D printing using ABS material.

[0060] The upper triboelectric power supply unit 200 is a triboelectric and electrostatic induction coupled power generation unit consisting of a stator and a rotor. It includes a cylindrical TENG, an electrostatic induction component, and a boost rectifier circuit connected therebetween. The cylindrical TENG is specifically a cylindrical independent friction layer TENG that serves as a charge pump, and the electrostatic induction component is a non-contact ring-shaped interdigital electrode. Specifically:

[0061] See also Figure 5The cylindrical TENG includes an upper transmission member 201, an upper baffle 204, a first substrate 205, a second substrate 206 and a lower baffle 207 arranged with a common central axis 500. The first substrate 205 and the second substrate 206 are located between the upper baffle 204 and the lower baffle 207, and the second substrate 206 is located inside the first substrate 205. A first electrode A1 and a first friction layer B1 are stacked in sequence from the outside to the inside on the inner side wall of the first substrate 205 facing the second substrate 206. A buffer layer 208 and a second friction layer B2 are stacked in sequence from the inside to the outside on the outer side wall of the second substrate 206 facing the first substrate 205. The upper transmission member 201, the upper baffle 204, the first substrate 205, the first electrode A1 and the first friction layer B1 together constitute the mover of the cylindrical TENG, and the lower baffle 207, the second substrate 206, the buffer layer 208 and the second friction layer B2 together constitute the stator of the cylindrical TENG. The upper transmission member 201 is a hollow second-step shaft. The upper part of the upper transmission member 201 is fixedly connected to the lower part of the upper rotor connecting member 108 in the transmission end by bolts, and the bottom of the upper transmission member 201 is fixed to the upper surface of the upper baffle 204 by bolts to realize the reception and transmission of kinetic energy; at the same time, the upper transmission member 201 is also rotatably connected to the top of the central shaft 500 through the bearing 105 and the washer 202. The washer 202 is sleeved on the top of the central shaft 500 and fixed to the inner ring of the bearing 105. The outer ring of the bearing 105 is fixedly connected to the upper transmission member 201. The upper baffle 204 is a circular plate with a central hole. The outer periphery of the central hole is provided with first slots 2041 evenly distributed around the circumference. The first substrate 205 is a first cylinder with upper and lower openings. The top end of the first substrate 205 is inserted into the first slot 2041 on the upper baffle 204 and is fixedly connected to the upper baffle 204 via a matching latch 203. When the upper baffle 204 rotates with the upper transmission member 201, it drives the first substrate 205 to rotate, thereby causing the first electrode A1 and the first friction layer B1 attached to the inner side of the first substrate 205 to rotate together. The first electrode A1 is an interdigitated electrode with an overall circular ring shape (the electrode material is preferably copper). The first friction layer B1 needs to completely cover the first electrode A1. Nylon or other materials can be used as the first friction layer B1. Figure 6The second substrate 206 is located inside the first substrate 205 and consists of a second cylinder 2061 with upper and lower openings and a plurality of T-shaped structures 2062 integrally formed on the outer surface of the second cylinder 2061 and evenly distributed around the circumference. The vertical section 2062a of the T-shaped structure 2062 is arranged along the radial direction of the second cylinder 2061, and the horizontal section 2062b of the T-shaped structure 2062 is arc-shaped and is arranged away from the outer surface of the second cylinder 2061. The buffer layer 208 and the second friction layer B2 are attached to the horizontal section 2062 of the T-shaped structure 2062. On the side of the T-shaped structure 2062b facing the first substrate 205, the buffer layer 208 and the second friction layer B2 have the same area and shape as the horizontal section 2062b of the T-shaped structure 2062. The buffer layer 208 can be made of sponge to ensure close contact between the first friction layer B1 and the second friction layer B2. The second friction layer B2 is made of a material with a different electronegativity than the first friction layer B1, such as polyvinyl chloride (PVC). The second cylinder 2061 is fixedly sleeved on the central shaft 500 to achieve a fixed connection between the two. The lower baffle 207 is fixedly connected to the side wall 403 of the housing 400 via a support block 405 fixed to the side wall 403. During the rotation of the mover of the cylindrical TENG following the transmission end, the first friction layer B1 and the second friction layer B2 carry equal amounts of opposite charges due to the different electronegativity of the friction materials. At the same time, an electrostatic field is formed between the friction layers. Based on the principle of triboelectric induction, the surface charge of the first electrode A1 is redistributed and continues following the movement of the first substrate 205. The two output ends of the two unconnected electrodes in the first electrode A1 output equal amounts of opposite charges.

[0062] The electrostatic induction component is arranged on the periphery of the cylindrical TENG, including at least one induction electrode pair. Adjacent induction electrode pairs should be spaced apart from each other. In this embodiment, two induction electrode pairs are provided, one on the outside is an induction electrode pair A and the other on the inside is an induction electrode pair B. Each induction electrode pair includes a mover induction electrode E1 and a stator induction electrode E2 spaced apart from each other from the inside to the outside. The mover induction electrode E1 and the stator induction electrode E2 both use interdigitated electrodes in the shape of an entire ring (the material of the electrode is preferably copper), which are respectively attached to the two side walls of the first electrode substrate 209 and the second electrode substrate 210. A first dielectric layer D1 and a second dielectric layer D2 are also attached to the surfaces of the mover induction electrode E1 and the stator induction electrode E2 that play an insulating and protective role (the first dielectric layer and the second dielectric layer are in the Figure 5 Not shown in the Figure 9(as shown in the figure), the first dielectric layer D1 and the second dielectric layer D2 are both made of insulating materials, such as polyimide (PI), which mainly serve to insulate and protect their respective sensing electrodes. The top of the first electrode substrate 209 is fixedly connected to the upper baffle 204 in the cylindrical TENG, and the bottom of the first electrode substrate 209 does not contact the lower baffle 207, that is, the bottom end of the first electrode substrate 209 is a free end, so that the first electrode substrate 209 together with the mover sensing electrode E1 and the first dielectric layer D1 on its outer wall will rotate synchronously with the rotation of the upper baffle 204. The bottom end of the second electrode substrate 210 is fixedly connected to the lower baffle 207, and the top of the second electrode substrate 210 does not contact the upper baffle 204, that is, the top end of the second electrode substrate 210 is a free end, so that the second electrode substrate 210 is connected to the stator sensing electrode E2 on its inner wall and the second dielectric layer D2 will remain stationary together with the lower baffle 207. A gap should be left between the mover induction electrode E1 and the stator induction electrode E2 to ensure that there is no contact between the first dielectric layer D1 and the second dielectric layer D2 during the rotation of the mover induction electrode E1, and to generate a stable induced electric field between the mover induction electrode E1 and the stator induction electrode E2. At the same time, the non-contact output mode eliminates material friction, thereby improving service life. When the wind power transmission mechanism 10 drives the upper transmission member 201 to rotate, it will simultaneously drive the upper baffle 204, the rotor of the cylindrical TENG, and the mover induction electrode E1 in the electrostatic induction component to rotate. The cylindrical TENG converts kinetic energy into AC power. This AC power is converted into DC power after the boost rectification action of a boost rectifier circuit VBC and injected into the surface of each induction electrode in the electrostatic induction component in the form of charge to increase its surface charge density. Subsequently, the two induction electrodes of the induction electrode pair output power to the outside based on the electrostatic induction mechanism.

[0063] Furthermore, the boost rectifier circuit connected between the cylindrical TENG and the electrostatic induction component has a structure as shown in FIG. Figure 9 The boost rectifier circuit is composed of at least two diodes 211 and the same number of electrolytic capacitors 212, wherein the diodes are connected in series in the same direction, and each electrolytic capacitor 212 is staggered in series between two diodes 211. Therefore, the boost rectifier circuit can add or delete a certain number of diodes and electrolytic capacitors according to the output circuit requirements. However, before actual use, it is necessary to ensure that the number of diodes and electrolytic capacitors is equal. Due to the unidirectional current conduction characteristic of the diodes, the plate of the electrolytic capacitor on the same side as the positive pole of the series diodes is also the positive pole. In order to stabilize the output voltage, a voltage stabilizing diode 213 is connected in parallel at the two output ends of the circuit. At the same time, due to the series-parallel characteristics of multiple capacitors, the boost rectifier circuit achieves the dual functions of boosting and rectifying.

[0064] The lower friction power supply unit 300 is a disc-shaped TENG consisting of a stator and a rotor, specifically a disc-shaped independent friction layer TENG. The disclosed embodiment improves the existing independent friction layer TENG to solve the problems of dust accumulation and soft contact.

[0065] See also Figure 7 The lower friction power supply unit 300 of the embodiment of the present disclosure includes a lower rotor connector 301 and a third substrate 302 and a fourth substrate 303 arranged in an upper and lower manner and both in the shape of a disk. A through hole for the central shaft 500 to pass through is provided at the center of the third substrate 302 and the fourth substrate 303, and a bearing 105 and a washer 202 are provided at the central through hole of the third substrate 302. The washer 202 is sleeved on the middle and lower part of the central shaft 500 and fixed to the inner ring of the bearing 105. The outer ring of the bearing 105 is fixed to the third substrate 302, and the bottom end of the central shaft 500 is fixedly connected to the fourth substrate 303. The lower rotor connector 301 is a hollow third stepped shaft. The top end of the lower rotor connector 301 is fixedly connected to the first substrate 205 in the cylindrical TENG by bolts, and the bottom end of the lower rotor connector 301 is fixedly connected to the third substrate 302 by bolts, so that the third substrate 302 keeps rotating synchronously with the first substrate 205. One side of the third substrate 302 of the substrate 303 is provided with a number of fan blades evenly distributed around the circumference, and the top of each fan blade is fixed in a corresponding second slot 3021 of the third substrate 302. The axial direction of the second slot 3021 is arranged along the radial direction of the third substrate 302. The fan blades are divided into two categories, namely, first fan blades and second fan blades. The first fan blades are used for power generation, and the second fan blades are used for cleaning. In order to ensure that the power generation and the fan blades do not interfere with each other, the number of first fan blades should be greater than the number of second fan blades. In this embodiment, it is preferably provided with 9 fan blades, and two first fan blades are provided between every two second fan blades, that is, there are a total of 6 first fan blades and 3 second fan blades. The first fan blade and the second fan blade both use flexible steel sheets 305 as the fan blade body. The surface of the flexible steel sheet 304 of the first fan blade facing the fourth substrate 303 is provided with a third friction layer B3, and the surface of the flexible steel sheet 304 of the second fan blade facing the fourth substrate 303 is provided with a cleaning adsorption layer 305 formed of a porous flexible material. Figure 8The fourth substrate 303 is provided with several strip-shaped ash slots 3031 evenly distributed around the circumference. The axial direction of each ash slot 3031 is arranged radially along the fourth substrate 303. The cleaned ash layer falls into the corresponding ash slot 3031 and is discharged from the lower friction power supply unit 300. On the side of the fourth substrate 303 facing the third substrate 302, and avoiding the ash slots 3031, the second electrode A2 and the fourth friction layer B4 are stacked from bottom to top. The second electrode A2 is an interdigitated electrode with an overall circular shape, and the fourth friction layer B4 should completely cover the second electrode A2. The fourth substrate 303 is located above the bottom plate 402 of the housing 400. A flange 501 is provided on the upper surface at the center of the fourth substrate 303 for fixing the bottom end of the central axis 500. The flange 501, the fourth substrate 303, and the bottom plate 402 are fixedly connected by bolts. The lower rotor connector 301, the third substrate 302, and the blades thereon together constitute the rotor of the disc-shaped TENG, while the fourth substrate 303, the second electrode A2 thereon, and the fourth friction layer B4 together constitute the stator of the disc-shaped TENG. The thickness of the flexible steel sheet 304, which serves as the main body of the blade, is generally 0.05mm-0.1mm. Due to its certain flexibility and weight, it is mainly used for support and rebound to ensure close contact between the friction layers of the disc-shaped TENG. The third friction layer B3 and the fourth friction layer B4 are made of materials with different electronegativity, such as the third friction layer B3 is made of PVC and the fourth friction layer B4 is made of nylon. The porous flexible material for making the cleaning adsorption layer 305 can be flannel and thin sponge, etc. The cleaning adsorption layer 305 is mainly used for cleaning dust. When rotating, the third friction layer B3 and the fourth friction layer B4 use the cleaning adsorption layer 305 to clean the dust generated in the friction process based on friction electrification and electrostatic induction power generation, thereby reducing the wear between the contact surfaces and ensuring effective contact between the triboelectric materials, thereby improving the service life and output performance of the lower friction power supply unit 300.

[0066] In some embodiments, to increase the structural stability of the wind energy collection device of the disclosed embodiment, the wind energy collection device further comprises a gantry 30. The gantry 30 is a gantry support structure constructed from six aluminum profiles 31 and assembled on a platform 32. The top of the gantry 30 is provided with a support member 106 rotatably connected to the transmission end of the wind transmission mechanism 10. The support member 106 is a hollow structure having a plurality of bearings 105 disposed therein. The inner ring of the bearing 105 is fixed to a coupling 107, and the outer ring of the bearing 105 is fixed to the support member 106. The support member 106 is fixed to the top of the gantry 30 by bolts. The bottom plate 402 of the housing 400 is fixed to the platform 32 at the bottom end of the gantry 30. The gantry 30 is mainly used to fix and support the wind transmission mechanism 10 and the friction power supply mechanism 20, so that they can be firmly placed in natural environments such as land, forests, and deserts for energy collection operations. During actual use, the length of the aluminum profile 31 can be adjusted to adapt to the unevenness of the actual fixed ground to ensure that the wind transmission mechanism 10 and the friction power supply mechanism 20 are installed perpendicular to the ground to maximize their energy collection and conversion efficiency.

[0067] like Figure 9 As shown, the upper friction power supply unit 200 outputs electrical energy based on a charge pump and non-contact electrostatic induction. In the pump TENG, the first friction layer B1 and the second friction layer B2 contact and rub against each other to produce equal amounts of opposite charges. Under the action of the electrostatic field, different charges are induced on the surface of the interdigitated first electrode A1. The charges or currents are then rectified by the boost rectifier circuit (VBC) and flow into the surface of the mover induction electrode E1 in the electrostatic induction component, forming different positive and negative electric fields. Under the action of the electrostatic field, different charges are induced on the surface of the stator induction electrode E2 corresponding to the mover induction electrode E1. When the electrodes are connected by wires and a load is added, electrical energy is output. The first dielectric layer D1 and the second dielectric layer D2 serve to isolate the mover induction electrode E1 from the stator induction electrode E2. The VBC circuit is composed of several electrolytic capacitors and diodes connected end-to-end in a predetermined manner, which perform the functions of rectification and boosting.

[0068] In order to verify the working performance of the two friction power supply units in the wind energy collection device, the embodiment of the present disclosure tested the two friction power supply units under different working conditions, as detailed below:

[0069] like Figure 10 As shown in a and b, V A-0 and I A-0 They represent the voltage amplitude and current amplitude output by the induction electrode pair A in the electrostatic induction component when the charge pump composed of the cylindrical TENG is not set, V B-0 and I B-0They represent the voltage amplitude and current amplitude output by the induction electrode pair B in the electrostatic induction component when the charge pump composed of the cylindrical TENG is not set; V A-VBC and I A-VBC They represent the voltage amplitude and current amplitude output by the induction electrode pair A in the electrostatic induction component when the charge pump composed of the cylindrical TENG is set, V B-VBC and I B-VBC They represent the voltage amplitude and current amplitude of the induction electrode pair B in the electrostatic induction component when the charge pump composed of the cylindrical TENG is set. As can be seen from the figure, when the charge pump is set, the voltage and current output by the induction electrode pair A and the induction electrode pair B are higher than the output power (V A-VBC >V A-0 ,I A-VBC >I A-0 ,V B-VBC >V B-0 ,I B-VBC >I B-0 ); At the same time, the output voltage and current of the sensing electrode pair A are greater than the output voltage and current of the sensing electrode pair B (V A-VBC >V B-VBC ,I A-VBC >I B-VBC , V A-0 >V B-0 ,I A-0 >I B-0 ), this is because the expanded area of ​​the sensing electrode pair A is larger than the expanded area of ​​the sensing electrode pair B.

[0070] like Figure 11 As shown in a and b, the legend W / t Sweep indicates that the cleaning adsorption layer is not provided in the lower friction power supply unit 300, and W / Sweep indicates that the cleaning adsorption layer is provided in the lower friction power supply unit 300. O and V O They represent the maximum values ​​of the output current and output voltage of the friction power supply unit 200 when the cleaning adsorption layer is not set, I L and V L They represent the maximum values ​​of the output current and output voltage of the friction power supply unit 200 when the cleaning adsorption layer is provided. As can be seen from the figure, the cleaning and dust removal function can affect the size of the power output, specifically increasing the output current (I L >I O ), but it can also reduce the output voltage (V L <V O ), which may be caused by the change in the contact area of ​​the dielectric material.

[0071] like Figure 12As shown in a and b, under different driving frequencies (specifically, the number of rotations per minute at the transmission end of the wind transmission mechanism 10), the total output voltage of the wind energy collection device remains almost unchanged, while the total output current increases with the increase of the driving frequency, which is in line with the basic power output law of TENG.

[0072] like Figure 13 As shown in a and b, P R It indicates the total output peak power of the device, Current represents the output current curve, and Power represents the output power curve. As can be seen from the figure, the total output peak power and average power of the wind energy collection device show a trend of increasing and then decreasing with the increase of load resistance value, and at 10 9 The maximum value is at Ω, and both the peak and average output currents decrease with the increase of resistance value, which is also in line with the basic law of TENG.

[0073] The working principle of the embodiment of the present disclosure is described as follows:

[0074] When the wind in the environment flows through the one-way opening and closing blades 101, the wind force acts on the closed blades through the opening and closing blades, driving them to rotate. The rotation of the wind transmission mechanism 10 further drives the rotors of the upper friction power supply unit 200 and the lower friction power supply unit 300 to rotate through the bearing 105, the coupling 107 and the upper rotor connector 108. Among them, the upper friction power supply unit 200 converts kinetic energy into electrical energy and outputs the corresponding current based on the electronegativity difference between the first friction layer B1 and the second friction layer B2 in the cylindrical TENG and the charge transfer mechanism. The output charge is injected into each pair of induction electrodes of the upper friction power supply unit 200 to increase its surface charge density. Subsequently, the inner and outer pairs of non-contact annular induction electrode pairs output electrical energy to the outside based on the electrostatic induction mechanism. This non-contact working mode can avoid friction and wear between materials, while ensuring the efficiency of power conversion and maximizing its service life.

[0075] Furthermore, the lower friction power supply unit 300 converts the rotor's rotational motion into electrical energy for external output based on the material electronegativity difference and charge transfer mechanism between the third friction layer B3 and the fourth friction layer B4 in the disc-shaped TENG. The fan blades on the rotor use a flexible steel sheet 304 as a support structure, and a cleaning adsorption layer 305 or the third friction layer B3 is attached to the side of the flexible steel sheet 304 facing the fourth substrate 303. As the rotor rotates to generate electricity, the cleaning adsorption layer 305 is used to clean the dust generated, reducing wear between the triboelectric materials and ensuring effective contact between the rotor and stator through the flexible steel sheet 304, thereby improving the service life and output performance of the lower friction power supply unit 300. The upper friction power supply unit 200 and the lower friction power supply unit 300 jointly output electrical energy for use by the load.

[0076] In summary, the disclosed embodiment proposes a wind energy collection device based on triboelectric and electrostatic induction coupling, in which the wind energy transmission mechanism captures wind power to realize the conversion of wind energy into kinetic energy, and the kinetic energy output by the wind energy transmission mechanism drives the friction power supply mechanism to realize the conversion of kinetic energy into electrical energy. Among them, the one-way opening and closing blades in the wind energy transmission mechanism can utilize the asymmetric opening and closing state of the blades to form an eccentric force couple, which serves as the rotational power of the device, reduces the starting wind speed, and improves the utilization rate of wind energy. There are two different friction power supply units in the friction power supply mechanism. The upper friction power supply unit is an integrated frame structure that integrates a cylindrical TENG and a non-contact annular forked electrode. The charge pump type charge output is used to increase the surface charge density and output electrical energy through non-contact electrostatic induction. The lower friction power supply unit adopts a fan blade with dust sweeping and elastic support. When rotating, it can generate electricity and clean the generated wear dust at the same time, reduce the wear between the contact surfaces and ensure effective contact between the rotor and the stator at high speed, so as to improve the service life and output performance of the lower friction power supply unit. The wind energy collection device can be fixed by a gantry and placed in natural environments such as land, forests, and deserts. In addition to the one-way opening and closing blades that feedback wind force, the cylindrical shape of its power generation part can achieve structural encapsulation to prevent the entry of external dust, thereby increasing its durability and practicality.

[0077] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

[0078] In the description of the embodiments of the present disclosure, it should be understood that the terms "top", "bottom", "up and down", "left and right", "coplanar", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0079] In the embodiments of the present application, unless otherwise clearly specified and limited, the terms "fixed connection", "fixed connection", "adhesion", "gluing", "bonding", "coating", "locking" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, etc. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in this application according to the specific circumstances.

[0080] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A wind energy collection device, characterized in that: include: A wind transmission mechanism includes a blade connector, a transmission end, and a plurality of one-way opening and closing blades, wherein the one-way opening and closing blades are evenly distributed around the circumference of the blade connector, and the transmission end is connected to the blade connector. When wind in the environment flows through the one-way opening and closing blades, the wind acts on the closed blades through the opening and closing blades to generate an eccentric rotational couple and drive the wind transmission mechanism to rotate. The friction power supply mechanism includes a housing and an upper friction power supply unit and a lower friction power supply unit located therein and arranged coaxially with each other, wherein the upper friction power supply unit and the lower friction power supply unit are synchronously driven by the transmission end to convert kinetic energy into electrical energy; The housing comprises a top plate, a bottom plate and side walls that are fixedly connected, the transmission end passes through the top plate and is rotatably connected to the top plate, and the bottom plate is fixedly connected to the bottom end of the central shaft; The upper friction power supply unit includes an independent friction layer cylindrical TENG and an electrostatic induction component arranged in sequence from the inside to the outside, and a boost rectifier circuit connected therebetween; the electrostatic induction component includes a mover induction electrode and a stator induction electrode arranged in sequence from the inside to the outside without contact, the mover induction electrode is fixed on the mover of the cylindrical TENG and together constitutes the mover part of the upper friction power supply unit connected to the transmission end, the stator induction electrode is fixed on the stator of the cylindrical TENG and together constitutes the stator part of the upper friction power supply unit and is fixedly connected to the side wall of the shell, the cylindrical TENG converts the kinetic energy output by the transmission end into electrical energy, and the electrical energy is injected into the electrostatic induction component in the form of charge after the action of the boost rectifier circuit to increase the charge density on the surface of the induction electrode therein, and outputs electrical energy to the outside based on the electrostatic induction mechanism of the mover induction electrode and the stator induction electrode; The lower friction power supply unit adopts an independent friction layer disc-shaped TENG, including a mover and a stator arranged in sequence from top to bottom. The mover of the disc-shaped TENG is fixedly connected to the mover of the cylindrical TENG, and the stator of the disc-shaped TENG is fixedly connected to the bottom plate of the housing. The disc-shaped TENG converts the kinetic energy output by the transmission end into electrical energy for external output. The disc-shaped TENG includes a lower rotor connector and a third substrate and a fourth substrate spaced apart and both in the shape of a disc. The third substrate is fixedly connected to the bottom end of the mover of the cylindrical TENG through the lower rotor connector. A plurality of fan blades uniformly distributed around the circumference are provided on the side of the third substrate facing the fourth substrate. The top end of each fan blade is fixed in a corresponding slot of the third substrate. The axial direction of the slot is arranged along the radial direction of the third substrate. The fan blades are divided into two categories: first fan blades and second fan blades. Both categories use flexible steel sheets as the fan blade body. The flexible blades of the first fan blades facing the fourth substrate are fixed in the same direction as the first fan blades. A third friction layer is attached to the surface of the steel sheet, and a cleaning adsorption layer formed by a porous flexible material is attached to the surface of the flexible steel sheet of the second fan blade facing the fourth substrate; the fourth substrate and the bottom plate of the shell are fixed to the bottom end of the central axis, and a plurality of gray slots evenly distributed around the circumference are opened on the fourth substrate, and the axial direction of each gray slot is arranged along the radial direction of the fourth substrate. A second electrode and a fourth friction layer are stacked in sequence from bottom to top on the side of the fourth substrate facing the third substrate and avoiding the gray slots. During the rotation of the third substrate, the third friction layer is in close contact with the fourth friction layer.

2. The wind energy collection device according to claim 1, characterized in that: At least three one-way opening and closing blades are provided in the wind transmission mechanism, and the one-way opening and closing blades include a blade frame fixedly connected to the blade connecting member and a blade body connected to the blade frame in one-way opening and closing via a hinge, and the hinge is located on the side of the blade frame away from the blade connecting member; under the action of wind, there is at least one one-way opening and closing blade in the wind transmission mechanism that is blocked by the baffle and is in a closed state, and at the same time there is at least one one-way opening and closing blade in an open state, thereby forming the eccentric rotating force couple between the one-way opening and closing blades.

3. The wind energy collection device according to claim 2, characterized in that: A spring is further provided between the blade frame and the blade body, and the opening and closing angle of the blade is changed by changing the stiffness of the spring, thereby controlling the rotation speed of the transmission end.

4. The wind energy collection device according to claim 1, characterized in that: The cylindrical TENG includes an upper transmission member, an upper baffle, a first substrate, a second substrate and a lower baffle arranged along a co-central axis. The upper transmission member is fixedly connected to the transmission end, and the upper transmission member is rotatably connected to the top of the central axis. The first substrate is cylindrical. The upper transmission member and the first substrate are respectively fixed to the upper and lower sides of the upper baffle. The bottom end of the first substrate passes through the lower baffle. The second substrate is located inside the first substrate and the second substrate is fixedly sleeved on the central axis. The lower baffle is fixedly supported on the side wall of the shell. A first electrode and a first friction layer are stacked in sequence from the outside to the inside on the inner side wall of the first substrate. A buffer layer and a second friction layer are stacked in sequence from the inside to the outside on the outer side wall of the second substrate. During the rotation of the first substrate, the first friction layer is in close contact with the second friction layer.

5. The wind energy collection device according to claim 4, characterized in that: The first electrode is an interdigitated electrode that is cylindrical in shape as a whole.

6. The wind energy collection device according to claim 4, characterized in that: The second substrate consists of a second cylinder with upper and lower openings and a plurality of T-shaped structures integrally formed on the outer surface of the second cylinder and evenly distributed around the circumference. The vertical section of the T-shaped structure is arranged along the radial direction of the second cylinder, and the horizontal section of the T-shaped structure is arc-shaped and arranged away from the outer surface of the second cylinder. The buffer layer and the second friction layer are attached to the side of the horizontal section of the T-shaped structure facing the first substrate.

7. The wind energy collection device according to claim 4, characterized in that: The electrostatic induction component is arranged on the periphery of the cylindrical TENG, including at least one induction electrode pair, and adjacent induction electrode pairs are arranged at intervals. The induction electrode pair consists of a mover induction electrode and a stator induction electrode arranged at intervals. The mover induction electrode and the stator induction electrode both adopt interdigitated electrodes that are overall cylindrical and are respectively attached to the two side walls of the first electrode substrate and the second electrode substrate where they are opposite to each other. A first dielectric layer and a second dielectric layer are also attached to the opposite surfaces of the mover induction electrode and the stator induction electrode, respectively. The top end of the first electrode substrate is fixedly connected to the upper baffle, and the bottom end of the first electrode substrate is a free end. The bottom end of the second electrode substrate is fixedly connected to the lower baffle, and the top end of the second electrode substrate is a free end. When the first electrode substrate rotates with the upper baffle, the first dielectric layer and the second dielectric layer do not contact.

8. The wind energy collection device according to claim 1, characterized in that: The second electrode is an interdigitated electrode that is annular in shape as a whole, and the porous flexible material is flannel or thin sponge.

9. The wind energy collection device according to any one of claims 1 to 8, characterized in that: The wind energy collection device further includes a gantry for supporting the wind transmission mechanism and the friction power supply mechanism.

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