A low-wind-speed-activated bionic mechanical feather friction nano-power generation device

Abstract

The present invention relates to the field of triboelectric power generation technology, and in particular to a biomimetic mechanical feather triboelectric nano-power generation device that can be started at low wind speeds. The device comprises a support shaft and a plurality of triboelectric generating elements. Each triboelectric generating element comprises a mounting frame and at least two biomimetic feather blades, the mounting frame being rotatably connected to the support shaft, and the at least two biomimetic feather blades being rotatably mounted on the corresponding mounting frame. Any two adjacent biomimetic feather blades are provided with triboelectric electrodes on opposite sides, and one of the triboelectric electrodes is provided with a friction layer on its surface. In each triboelectric generating element, the biomimetic feather blade rotates with the corresponding mounting frame and rotates on the corresponding mounting frame under the action of wind. During the rotation process, the adjacent biomimetic feather blades come into contact and separate, so that the adjacent friction layers and triboelectric electrodes come into contact and separate, thereby generating triboelectric power. The present invention can be started at relatively low wind speeds, thereby achieving the collection of natural wind energy even at low wind speeds.

Description

Technical Field

[0001] The present invention relates to the technical field of friction power generation, in particular to a low-wind-speed-start bionic mechanical feather friction nano-power generation device. Background Art

[0002] Amidst the increasingly severe energy crisis, the search for renewable energy has become a key challenge for sustainable energy development. Traditional energy sources, such as oil, coal, and natural gas, are no longer able to meet humanity's energy needs. Therefore, there is an urgent need for the development of alternative energy sources, such as wind, hydro, and mechanical energy. The triboelectric nanogenerator (TENG) is a novel method for generating electricity from mechanical energy. It can convert numerous distributed, high-entropy energy sources in the environment, such as wind energy, human motion energy, and vibration energy, into effective electrical energy. This allows the efficient collection and utilization of any available energy in the environment, providing a perfect solution to this problem.

[0003] Currently, most of the wind energy collection equipment used is of the rotating grid type. Although it improves the output of the generator, the grid-type generator requires a large amount of supporting material, which will increase the overall windward volume and cause greater resistance. It needs to be started at a higher wind speed and cannot fully collect natural wind energy at lower wind speeds. In addition, the current grid-type generator will wear out the friction layer due to the rotating contact between the friction layers, and cannot maintain efficient operation for a long time. Summary of the Invention

[0004] Based on this, in order to address the technical problems that the current wind energy-based grid-type generators cannot fully collect natural wind energy at lower wind speeds, and have a short lifespan due to wear of the friction layer, and cannot maintain efficient operation for a long time, it is necessary to provide a low-wind-speed-start bionic mechanical feather friction nano-power generation device.

[0005] The present invention proposes a low-wind-speed-activated biomimetic mechanical feather friction nano-power generation device, which comprises:

[0006] support shaft; and

[0007] A plurality of friction power generation elements are distributed in a circular pattern outside a support shaft; each of the friction power generation elements includes a mounting frame and at least two bionic feather blades, the mounting frame is rotatably connected to the support shaft, at least two bionic feather blades are rotatably mounted on the corresponding mounting frame, and any two adjacent bionic feather blades are provided with friction charging electrodes on opposite sides, and a friction layer is provided on the surface of one of the friction charging electrodes; in each of the friction power generation elements, the mounting frame rotates around the support shaft under the action of wind, the bionic feather blade follows the corresponding mounting frame and rotates on the corresponding mounting frame under the action of wind, and the two adjacent bionic feather blades contact and separate during the rotation process so that the adjacent friction layers and friction charging electrodes contact and separate to generate friction power.

[0008] The low-wind-speed-start biomimetic mechanical feather friction nano-power generation device of the present invention has a large wind-collecting area and can be started at relatively low wind speeds. Driven by wind energy, the mounting frame rotates around the support shaft, and the bionic feather blades rotate with the mounting frame while also rotating on the mounting frame. Due to the difference in resistance pressure difference between the bionic feather blades and the continuous change of the windward surface, two adjacent bionic feather blades will produce a process of flapping, contacting and separating with each other, causing the friction layer and the triboelectric electrode to contact and separate with each other to generate charges, thereby generating friction power, generating current output, realizing the conversion of wind energy into electrical energy, greatly improving the wind energy utilization conversion rate, and solving the technical problem that the current wind-based grid-type generator cannot fully collect natural wind energy at relatively low wind speeds. The present invention generates electricity through contact and separation between the friction layer and the triboelectric electrode, which is a contact-separation TENG. It has low loss to the bionic feather blades and can maintain high efficiency for a long time. This solves the technical problem that the current wind-based grid-type generator has a short life due to wear of the friction layer and cannot maintain high efficiency for a long time.

[0009] As a further improvement of the above solution, each of the friction power generation components further includes:

[0010] At least two rotating shafts, at least two rotating shafts are spaced apart along the radial direction of the support shaft and each rotating shaft is parallel to the support shaft, and both ends of each rotating shaft are rotatably connected to the mounting frame; and

[0011] At least two connecting frames are respectively fixed on at least two rotating shafts; in each of the friction power generation components, at least two bionic feather blades are respectively connected to the at least two connecting frames.

[0012] As a further improvement of the above solution, the bionic feather blade includes:

[0013] a carbon fiber support body, one side of which is connected to a corresponding connecting frame; and

[0014] Two buffer layers are respectively arranged on two side surfaces of the carbon fiber support body.

[0015] As a further improvement of the above solution, the triboelectric electrodes are made of metal electrodes, and the friction layer is made of fluorine-containing materials.

[0016] As a further improvement of the above solution, the metal electrode is a copper metal electrode, and the fluorine-containing material is fluorinated isopropylene, polyvinylidene fluoride or polytetrafluoroethylene.

[0017] As a further improvement of the above solution, the friction nano power generation device further includes:

[0018] A rotating ring 1 is rotatably mounted on the support shaft, and a plurality of connecting rods 1 are circumferentially arranged on the outer periphery of the rotating ring;

[0019] The rotating ring 2 is rotatably mounted on the support shaft, and a plurality of connecting rods 2 are circumferentially arranged on its outer circumference; a plurality of mounting frames are respectively arranged in a one-to-one correspondence with the plurality of connecting rods 1 and the plurality of connecting rods 2, and the mounting frames are connected to the corresponding connecting rods 1 and the connecting rods 2.

[0020] As a further improvement of the above solution, the friction nano power generation device further includes:

[0021] The conductive slip ring is installed on the supporting shaft and its stator assembly is connected to the rotating ring 2. The multiple rotor outgoing wires of the conductive slip ring are respectively electrically connected to the multiple friction electrification electrodes.

[0022] As a further improvement of the above solution, the first rotating ring and the second rotating ring are both made of polylactic acid plastic.

[0023] As a further improvement of the above solution, the friction nano power generation device further includes:

[0024] a base connected to one end of the support shaft;

[0025] And / or, the base is made of carbon fiber material.

[0026] As a further improvement of the above solution, the support shaft is made of stainless steel.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The low-wind-speed-start bionic mechanical feather friction nano-power generation device of the present invention is designed by observing the movement of birds and simulating the morphology of bird feathers to analyze their force information, and has a large wind-collecting area and low resistance. While ensuring the overall structure is lightweight, it has a lower starting wind speed. The mounting frame rotates around the support shaft driven by wind energy, and the bionic feather blades rotate with the mounting frame and can also rotate on the mounting frame. Due to the difference in resistance pressure difference between the bionic feather blades and the continuous change of the windward surface, the bionic feather blades swing left and right, thereby being able to produce a process of mutual flapping, contact and separation with adjacent bionic feather blades, thereby causing adjacent friction layers and friction-generating electrodes to contact and separate with each other, generating charge transfer through frictional power generation, and generating current output, thereby realizing the conversion of wind energy into electrical energy, greatly improving the wind energy utilization conversion rate, and realizing the collection of natural wind energy even at low wind speeds.

[0029] 2. The friction layer of the present invention generates electricity through contact separation with the triboelectric electrode, which is a contact-separation TENG. It has little loss to the bionic feather blades and can maintain high efficiency for a long time.

[0030] 3. The present invention achieves better device durability and higher performance output during long-term use, which is conducive to the efficient energy collection of low-speed wind energy, enriches the use scenarios of the equipment, and provides a new development direction for energy collection and sensing. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the structure of a low-wind-speed-activated biomimetic mechanical feather friction nano-power generation device proposed in an embodiment of the present invention;

[0032] Figure 2 for Figure 1 Side view of;

[0033] Figure 3 for Figure 1 Schematic diagram of the structure of the middle base;

[0034] Figure 4 for Figure 1 Schematic diagram of part of the structure;

[0035] Figure 5 for Figure 1 Schematic diagram of the structure of the friction power generation device;

[0036] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0037] Figure 7 for Figure 5 Schematic diagram of the structure of the bionic feather blade;

[0038] Figure 8for Figure 7 Partial side view;

[0039] Figure 9 This is a schematic structural diagram of a conductive slip ring and a second mounting ring in a low-wind-speed-start biomimetic mechanical feather friction nano-power generation device proposed in an embodiment of the present invention;

[0040] Figure 10 This is a working principle diagram of a low-wind-speed-activated biomimetic mechanical feather friction nano-power generation device proposed in an embodiment of the present invention.

[0041] Figure numerals: 100, support shaft; 200, friction power element; 210, mounting frame; 220, bionic feather blade; 221, carbon fiber support body; 222, buffer layer; 230, friction charging electrode; 240, friction layer; 250, rotating shaft; 260, connecting frame; 300, rotating ring 1; 310, connecting rod 1; 400, rotating ring 2; 410, connecting rod 2; 500, conductive slip ring; 600, base. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] This embodiment addresses the technical issues with current wind-powered grid-type generators, which suffer from wear and tear on their power generation layers, resulting in a short lifespan, an inability to maintain efficient operation for extended periods, and an inability to fully collect natural wind energy at lower wind speeds. Therefore, it is necessary to provide a low-wind-speed-activated biomimetic mechanical feather friction nanogenerator. This embodiment's low-wind-speed-activated biomimetic mechanical feather friction nanogenerator is capable of collecting low-speed wind energy from nature, resolving the technical issues with grid-type generators, such as their short lifespan and inability to fully collect natural wind energy at lower wind speeds. It also provides greater options for friction nanogenerators in terms of structural design and material selection.

[0044] Please refer to Figure 1 、 Figure 2 The low-wind-speed-activated bionic mechanical feather friction nano-power generation device of this embodiment can be installed on the coast or on the top of some towers to collect natural low-speed wind energy. It includes a support shaft 100 and several friction power generation elements 200, and can also include a rotating ring 1 300, a rotating ring 2 400 and a base 600.

[0045] The support shaft 100 is used to fix and support the entire friction nanometer power generation device. The support shaft 100 is made of stainless steel. The support shaft 100 is installed on the base 600, and the entire friction nanometer power generation device can be installed in the working position through the base 600. In this embodiment, please combine Figure 3 The top of the base 600 is provided with a circular mounting hole 610, and a mounting ring 620 is integrally formed on the top thereof and is coaxially arranged with the circular mounting hole 610. The inner diameter of the mounting ring 620 is larger than the aperture of the circular mounting hole 610, and the mounting ring 620 is provided with a wire hole 630. The bottom end of the support shaft 100 is inserted through the mounting ring into the circular mounting hole 610 and is fixedly connected to the base 600. The shape of the base 600 is not limited. The base 600 can be any shape, such as a disc, a rectangular parallelepiped, a cube, or other irregular shapes. In this embodiment, the base 600 is disc-shaped, and the material of the base 600 can also be selected according to actual conditions. If it is installed on the coast, considering the corrosiveness of seawater, the material of the base 600 can be corrosion-resistant metal materials, such as stainless steel, titanium alloy, nickel-based alloy, copper alloy, and aluminum alloy. Specifically, it can be made of carbon fiber material.

[0046] The first rotating ring 300 and the second rotating ring 400 are both mounted on the support shaft 100 through bearings and the first rotating ring 300 and the second rotating ring 400 are spaced apart along the axial direction of the support shaft 100. Figure 4 In this embodiment, rotating ring 1 300 is circumferentially provided with three integrally formed connecting rods 1 310 arranged radially therefrom, and rotating ring 2 400 is circumferentially provided with three integrally formed connecting rods 2 410 arranged radially therefrom. The three connecting rods 1 310 correspond one-to-one with the three connecting rods 2 410 . In this embodiment, the shapes of rotating ring 1 300 and rotating ring 2 400 are not limited, and the materials of rotating ring 1 300 and rotating ring 2 400 can also be selected based on actual conditions. Considering the corrosive nature of seawater, it is preferred to select a material with excellent corrosion resistance. Specifically, rotating ring 1 300 and rotating ring 2 400 are both made of degradable polylactic acid. Polylactic acid is not only a degradable material, but also has good durability and high wear resistance.

[0047] Several friction power generation elements 200 are distributed in a circular pattern outside the support shaft 100. In this embodiment, there are three friction power generation elements 200. The three friction power generation elements 200 are evenly distributed in a circular pattern outside the support shaft 100, and the three friction power generation elements 200 are respectively arranged in a one-to-one correspondence with the three connecting rods 1 310 and the three connecting rods 2 410.

[0048] Please combine Figure 5Each friction power generation element 200 includes a mounting frame 210 and a bionic feather blade 220. The mounting frame 210 is a rectangular frame structure as a whole, and a reinforcing rod is integrally formed in the middle position of the mounting frame 210. In this embodiment, the mounting frame 210 is made of polylactic acid material using 3D printing technology. One end of the mounting frame 210 is inserted between the corresponding connecting rod 1 310 and the connecting rod 2 410, and the mounting frame 210 is connected to the corresponding connecting rod 1 310 and the connecting rod 2 410 by screws, so that the entire friction nano power generation device forms a structure similar to a wind cup. The mounting frame 210 can drive the rotating ring 1 300 and the rotating ring 2 400 to rotate around the support shaft 100 under the drive of wind energy. One end of the bionic feather blade 220 is rotatably mounted on the mounting frame 210. The number of the bionic feather blades 220 is no less than two. The bionic feather blade 220 rotates on the mounting frame 210 under the drive of wind energy. At the same time, the bionic feather blade 220 also rotates with the mounting frame 210 and in the process of rotating with the mounting frame 210, the windward side of the bionic feather blade 220 will change. Due to the difference in resistance pressure difference between the bionic feather blades 220 and the change in the windward surface, during the rotation process, two adjacent bionic feather blades 220 will produce a process of flapping, contacting and separating from each other. By providing triboelectric electrodes 230 on opposite sides of the two adjacent bionic feather blades 220 and providing a friction layer 240 on the surface of one of the triboelectric electrodes 230, during the flapping, contacting and separating process of the two adjacent bionic feather blades 220, the friction layer 240 and the triboelectric electrode 230 contact and separate from each other to generate electric charge, thereby performing friction power generation. As the mounting frame 210 continues to rotate, the adjacent bionic feather blades 220 continue to flap, contact and separate, so that triboelectric charging continues to occur between the adjacent friction layers 240 and the triboelectric electrodes 230, generating positive charges on the triboelectric electrodes 230 and negative charges on the surface of the friction layer 240. As the bionic feather blades 220 separate, charge transfer occurs between the electrodes, generating current output, and realizing the conversion of wind energy into electrical energy. To better utilize wind energy for triboelectric generation, in this embodiment, three bionic feather blades 220 are provided. The shape of the bionic feather blades 220 is not limited and can be any shape, such as circular, rectangular, square, or other irregular shapes. In this embodiment, the bionic feather blades 220 are rectangular.

[0049] Please combine Figure 6In this embodiment, to facilitate the installation and rotation of the bionic feather blades 220, the triboelectric generator 200 may further include a rotating shaft 250 and a connecting frame 260. In each triboelectric generator 200, the number of rotating shafts 250 and connecting frames 260 is consistent with the number of bionic feather blades 220, namely three. In each triboelectric generator 200, the three rotating shafts 250 are parallel to the support shaft 100, and the upper and lower ends of the three rotating shafts 250 are rotatably connected to the corresponding mounting frame 210 via bearings. The three connecting frames 260 are respectively fixed to the three rotating shafts 250, and one end of the three bionic feather blades 220 is respectively fixed to the three connecting frames 260. In each triboelectric generator 200, the distance between two adjacent rotating shafts 250 is reasonably designed based on actual conditions to ensure that the bionic feather blades 220 can drive the rotation of the mounting frame 210 while maximizing the triboelectric power output performance between the three bionic feather blades 220. In this embodiment, the rotating shaft 250 and the connecting frame 260 can both be made of degradable polylactic acid material.

[0050] In this embodiment, the triboelectric element 200 is a bionic feather blade 220 designed by observing the movement of birds and referring to the self-interlocking structure of bird feathers. It simulates the feather morphology and analyzes the force information of the feather. The resistance pressure difference distribution is used to enable the bionic feather blades 220 to flap, contact and separate with each other to form a triboelectric structure. While ensuring the overall structure is lightweight, it has a lower starting wind speed and the overall size can be large or small, which can be applied to different usage scenarios. Figure 7 、 Figure 8The bionic feather blade 220 mainly includes a carbon fiber support body 221 and a buffer layer 222 arranged on both sides of the carbon fiber support body 221. The main body of the bionic feather blade 220 is the carbon fiber support body 221, which is connected to the corresponding connecting frame 260. The carbon fiber support body 221 is made of carbon fiber material, which is light and very tough. Of course, it can also be replaced with other lightweight and high-strength materials while ensuring the overall lightweight structure. The buffer layer 222 not only increases the contact area of ​​the friction layer 240, but also provides a buffer for the full contact between the bionic feather blades 220, thereby reducing the impact force generated by the flapping of the bionic feather blades 220. The buffer layer 222 is made of polyurethane sponge. In each triboelectric generator 200, triboelectric electrodes 230 are attached to the surfaces of the buffer layer 222 on both sides of the bionic feather blade 220 in the middle position. Triboelectric electrodes 230 are also attached to the surfaces of the buffer layer 222 on the side of the two bionic feather blades 220 on the outside that are close to each other. Conductive wires are laid between the triboelectric motor and the buffer layer 222 to facilitate wiring. A friction layer 240 is attached to the surface of the triboelectric electrode 230 on the windward side of each bionic feather blade 220. The triboelectric electrodes 230 can be metal electrodes, such as copper, aluminum, and other metals with good conductivity. In this embodiment, the triboelectric electrodes 230 are copper metal electrodes. The friction layer 240 is made of a polymer material with high electronegativity, such as a fluorine-containing material, such as fluorinated isopropylene, polyvinylidene fluoride, or polytetrafluoroethylene (PTFE). In this embodiment, the friction layer 240 is made of a PTFE film. It should be noted that, since the ductility of the PTFE membrane is stronger than that of the carbon fiber support body 221, if the two bionic feather blades 220 on the outside are only close to the copper metal electrode on one side, the carbon fiber support body 221 will bend, thereby reducing the contact area between the copper metal electrode and the PTFE membrane. To avoid this situation, in this embodiment, a triboelectric charging electrode 230 is also attached to the surface of the buffer layer 222 on the side away from each other of the two bionic feather blades 220 on the outside. In this way, the weight of the bionic feather blades 220 can be balanced and stability can be maintained.

[0051] In order to facilitate the output of the electric energy generated by the friction power generation element 200, this embodiment is also provided with a conductive slip ring 500. Figure 9The conductive slip ring 500 is mounted on the support shaft 100 and located between the second rotating ring 400 and the base 600. The conductive slip ring 500 is conventional technology, specifically a micro through-hole slip ring. The stator assembly of the conductive slip ring 500 is fixedly connected to the second rotating ring 400 via bolts. As the second rotating ring 400 rotates with the mounting frame 210, the second rotating ring 400 drives the stator assembly of the conductive slip ring 500 to rotate. The wires between the triboelectric electrodes 230 and the buffer layer 222 are connected to the stator output wires of the conductive slip ring 500. The rotor output wires of the conductive slip ring 500 are led out through the wire holes 630 of the mounting ring 620. The conductive slip ring 500 can collect and output the electrical energy generated by the three triboelectric generators 200.

[0052] The following combination Figure 10 , the working principle of this embodiment is explained.

[0053] When the triboelectric power generation device of this embodiment is installed in nature, such as on the sea surface, driven by wind energy, the mounting frame 210 of each triboelectric generator 200 rotates about the support shaft 100. Simultaneously, the bionic feather blades 220 rotate along with the mounting frame 210 and also about the rotation axis 250. During this rotation, the windward surface of the bionic feather blades 220 changes. Due to the difference in resistance pressure between the bionic feather blades 220 and the change in the windward surface, adjacent bionic feather blades 220 may flap, contact, and separate during rotation. Because triboelectric electrodes 230 are disposed on opposing sides of two adjacent bionic feather blades 220, and a friction layer 240 is provided on the surface of one of the triboelectric electrodes 230, during this flapping, contact, and separation process, the friction layer 240 and the triboelectric electrode 230 come into contact and separate, generating electric charge, thereby generating triboelectric power. As the mounting frame 210 continues to rotate and the adjacent bionic feather blades 220 continue to flap, contact and separate, triboelectric charging continues to occur between the adjacent friction layers 240 and the triboelectric electrodes 230, generating positive charges on the triboelectric electrodes 230 and negative charges on the surface of the friction layer 240. As the bionic feather blades 220 separate, charge transfer occurs between the electrodes, and electrical energy is collected and output through the conductive slip ring 500.

[0054] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component. When a component is considered to be "fixed to" another component, it may be directly fixed to the other component or there may be a central component.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0056] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A low-wind-speed-activated bionic mechanical feather friction nano-power generation device, characterized in that: It includes: Support shaft (100); as well as A plurality of friction power generation elements (200) are distributed in a circumferential manner outside a support shaft (100); each of the friction power generation elements (200) comprises a mounting frame (210) and at least two bionic feather blades (220); the mounting frame (210) is rotatably connected to the support shaft (100); at least two bionic feather blades (220) are rotatably mounted on the corresponding mounting frame (210); and a friction electrification electrode (230) is provided on opposite sides of any two adjacent bionic feather blades (220), and one of the friction electrification electrodes is connected to the support shaft (100). A friction layer (240) is provided on the surface of the electric electrode (230); in each of the friction power generation elements (200), the mounting frame (210) rotates around the support shaft (100) under the action of wind, and the bionic feather blades (220) rotate along with the corresponding mounting frame (210) and rotate on the corresponding mounting frame (210) under the action of wind, and two adjacent bionic feather blades (220) have a difference in resistance pressure difference and a change in the windward surface, and contact and separate during the rotation process, so that the adjacent friction layers (240) and the friction-generating electrodes (230) contact and separate, thereby generating friction power; The bionic feather blade (220) comprises: A carbon fiber support body (221), one side of which is connected to a corresponding connecting frame (260); as well as Two buffer layers (222), the two buffer layers (222) are respectively arranged on two side surfaces of the carbon fiber support body (221).

2. The low-wind-speed-activated bionic mechanical feather friction nano-power generation device according to claim 1, characterized in that: Each of the friction power generation elements (200) further comprises: At least two rotating shafts (250), the at least two rotating shafts (250) are radially spaced apart and each rotating shaft (250) is parallel to the supporting shaft (100), and both ends of each rotating shaft (250) are rotatably connected to the mounting frame (210); and At least two connecting frames (260) are respectively fixed on at least two rotating shafts (250); in each of the friction power generation components (200), at least two bionic feather blades (220) are respectively connected to the at least two connecting frames (260).

3. The low-wind-speed-activated biomimetic mechanical feather friction nano-power generation device according to claim 1, characterized in that: The triboelectric electrode (230) is made of a metal electrode, and the friction layer (240) is made of a fluorine-containing material.

4. The low-wind-speed-activated biomimetic mechanical feather friction nano-power generation device according to claim 3, characterized in that: The metal electrode is a copper metal electrode, and the fluorine-containing material is fluorinated isopropylene, polyvinylidene fluoride or polytetrafluoroethylene.

5. The low-wind-speed-activated biomimetic mechanical feather friction nano-power generation device according to claim 1, characterized in that: The friction nano power generation device further includes: A rotating ring (300) is rotatably mounted on the support shaft (100), and a plurality of connecting rods (310) are arranged circumferentially on the outer periphery of the rotating ring; The rotating ring 2 (400) is rotatably mounted on the support shaft (100), and a plurality of connecting rods 2 (410) are arranged circumferentially on its outer periphery; a plurality of mounting frames (210) are respectively arranged in a one-to-one correspondence with a plurality of connecting rods 1 (310) and a plurality of connecting rods 2 (410), and the mounting frames (210) are connected to the corresponding connecting rods 1 (310) and connecting rods 2 (410).

6. The low-wind-speed-activated biomimetic mechanical feather friction nano-power generation device according to claim 5, characterized in that: The friction nano power generation device further includes: A conductive slip ring (500) is mounted on a support shaft (100) and its stator assembly is connected to the second rotating ring (400). Multiple rotor outgoing wires of the conductive slip ring (500) are electrically connected to multiple friction electrification electrodes (230) respectively.

7. The low-wind-speed-activated biomimetic mechanical feather friction nano-power generation device according to claim 5, characterized in that: The rotating ring 1 (300) and the rotating ring 2 (400) are both made of polylactic acid plastic.

8. The low-wind-speed-activated biomimetic mechanical feather friction nano-power generation device according to claim 1, characterized in that: The friction nano power generation device further includes: A base (600) connected to one end of the support shaft (100); And / or, the base (600) is made of carbon fiber material.

9. The low-wind-speed-activated biomimetic mechanical feather friction nano-power generation device according to claim 1, characterized in that: The support shaft (100) is made of stainless steel.

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