A gyroscopic friction nano-power generation device

Abstract

The gyroscopic triboelectric nanometer power generation device disclosed in the present invention relates to the field of power generation equipment and includes a track device, a power generation body, and two rolling elements. The power generation body includes a triboelectric power generation assembly and a limiting component. The power generation body is disposed between and fixedly connected to the two rolling elements. The rolling elements can magnetically attract the track body and can roll along the track body under the action of an external force parallel to the tangent direction of the track body. The triboelectric power generation assembly includes a first and second electrodes that do not contact each other, a first friction component, and a second friction component. The first friction component can contact the inner wall of the second friction component. The inner walls of the first and second friction components have different triboelectric electrode sequences. The first and second electrodes are fixedly connected to the outer wall of the second friction component. The limiting component is fixedly connected to the triboelectric power generation assembly and has a limiting surface that can prevent the first friction component from falling. The rolling elements can roll along the track body, causing the first friction component to roll along the inner wall of the second friction component under centrifugal force. The device has a high power generation capacity.

Description

Technical Field

[0001] The present invention relates to the technical field of power generation equipment, and in particular to a gyroscopic friction nanometer power generation device. Background Art

[0002] In recent years, the use of small electronic devices has grown exponentially, significantly increasing the use of batteries. Batteries require repeated charging, and their waste is harmful to the environment and humans. New power generation methods are urgently needed to replace traditional fossil fuels. Among them, triboelectric nanogenerators (TFNs) utilize the principles of frictional electrification and electrostatic induction to generate electricity. They can harvest tiny amounts of mechanical energy and utilize nearly any type of mechanical motion and vibration (including human movement) to generate electricity. This improves energy efficiency and reduces energy loss, leading to their widespread application in electronic products.

[0003] Existing tribo-nanoelectricity generation devices generally include a first friction component, a second friction component, a first electrode, and a second electrode. The second friction component is a plate-shaped structure, that is, both working surfaces of the second friction component are flat. The first friction component can contact and move along one working surface of the second friction component. The first electrode and the second electrode are both arranged on the other working surface of the second friction component. For example, Chinese patent CN202210315423.7 provides a rolling-belt tribo-nanoelectricity generation device based on interfacial static friction, which includes an independent layer (first friction component), an insulating layer (second friction component) and an electrode pair (one electrode and a second electrode). Under short-circuit conditions, when one end of the independent layer and the insulating layer are in contact (initial position), due to the different abilities of the independent layer and the insulating layer to attract electrons, electrons are transferred from the surface of the independent layer to the insulating layer. The electrode (first electrode) far away from the end of the independent layer is positively charged, and a potential difference is generated between the two electrodes. Charge movement is instantaneously generated to balance the potential difference, thereby generating current; when the independent layer rolls to the end of the insulating layer close to the first electrode, the second electrode is positively charged. At this time, the charges move in the opposite direction. The triboelectric nano-power generation device generates electricity through the reciprocating motion of the independent layer on the insulating layer. Conventional triboelectric nano-power generation devices connect the independent layer (first friction component) to the end generating mechanical motion, thereby converting mechanical motion into reciprocating motion of the independent layer. However, these conventional triboelectric nano-power generation devices lack a structure capable of converting low-frequency mechanical motion into high-frequency mechanical motion, resulting in low power generation capacity. Summary of the Invention

[0004] The purpose of the present invention is to provide a gyroscopic friction nano-power generation device to solve the problems existing in the above-mentioned prior art, with a simple structure and high power generation capacity.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a gyroscopic friction nanometer power generation device, comprising a track device, a power generation body and two rolling bodies, wherein the track device comprises a handheld component and two annular track bodies, wherein the handheld component is fixedly connected to the two track bodies; the power generation body comprises a friction power generation component and a limiting component, wherein the power generation body is arranged between the two rolling bodies and is fixedly connected to the two rolling bodies, wherein each rolling body can be magnetically adsorbed with each track body and each rolling body can roll along each track body under the action of an external force parallel to the tangential direction of each track body; the friction power generation component comprises a first electrode, a second electrode, a first friction component and an annular second friction component, wherein the outer surface of the first friction component can contact the inner wall of the second friction component, and the outer surface of the first friction component The first and second friction components have different friction electrode sequences from the inner wall of the second friction component, the first electrode and the second electrode are both fixedly connected to the outer wall of the second friction component, and the first electrode and the second electrode do not contact each other; the limiting component is fixedly connected to the friction power generation component, and the limiting component has two limiting surfaces, the direction from the axial middle section of the second friction component to the plane where one of the track bodies is located is the first direction, and the direction from the axial middle section of the second friction component to the plane where the other track body is located is the second direction, the two limiting surfaces can respectively limit the movement of the first friction component along the first direction and the second direction, and each rolling body can make the first friction component roll along the inner wall of the second friction component under the action of centrifugal force by rolling along each track body.

[0007] Preferably, the limiting component is a shell having an inner cavity, the first electrode, the second electrode and the second friction component are all fixedly connected to the inner cavity of the shell, the two ends of the shell are respectively fixedly connected to the two rolling elements, and the two inner walls of the shell perpendicular to the axis of the second friction component are the two limiting surfaces.

[0008] Preferably, each of the track bodies is a magnet or a metal that can be magnetically adsorbed, and each of the rolling elements is a metal or a magnet that can be magnetically adsorbed.

[0009] Preferably, the first electrode and the second electrode are symmetrically distributed about the axial cross-section of the second friction component.

[0010] Preferably, the outer surface of the first friction component and / or part or all of the inner wall of the second friction component have microstructures.

[0011] Preferably, the microstructure is an array structure formed by at least one of nanowires, nanotubes, nanoparticles, nanorods, nanoflowers, nanogrooves, microgrooves, nanocones, microcones, nanospheres and microspheres.

[0012] Preferably, the outer diameter and / or inner diameter of the two track bodies are the same, and the axes of the two track bodies and the two rolling bodies are parallel.

[0013] Preferably, the cross section of the shell is annular, the first electrode and the second electrode are partially annular, and the inner walls of the first electrode and the second electrode are in complete contact with the outer wall of the second friction component, and the first friction component is spherical.

[0014] Compared with the prior art, the present invention has achieved the following technical effects:

[0015] In the gyroscopic friction nano-power generation device provided by the present invention, each rolling body can be magnetically attracted to each track body and each rolling body can roll along each track body under the action of an external force parallel to the tangential direction of each track body; each rolling body can cause the first friction component to roll along the inner wall of the second friction component under the action of centrifugal force by rolling along each track body; when the gyroscopic friction nano-power generation device is shaken in the plane where the track body is located, an interaction force is generated between the rolling body and the track body, and the rolling body can roll along the track body under the action of the mutual attraction force with the track body, the external force and the inertia force of the rolling body, that is, the low-frequency motion of the external environment such as the human body is converted into the high-frequency motion of the friction power generation component; the friction power generation component includes a first electrode, a second electrode, a first friction component and a circular second friction component, the outer surface of the first friction component is used to contact the inner wall of the second friction component, and the outer surface of the first friction component and the inner wall of the second friction component have different friction electrode sequences, the first electrode and the second electrode are both fixedly connected to the outer wall of the second friction component, and the first electrode and the second electrode do not contact each other. Because the outer surface of the first friction component and the inner wall of the second friction component have different triboelectric sequences, the outer surface of the first friction component and the inner wall of the second friction component attract electric charge to different degrees. When the first friction component is positioned opposite the first electrode and contacts or slides with the second friction component, negative charge is transferred from the surface of the material with a more positive polarity in the triboelectric sequence to the surface of the material with a more negative polarity in the triboelectric sequence. For example, when the first friction component loses electrons and the second friction component gains electrons when the two friction components contact each other, when the outer surface of the first friction component has a positive net charge and the inner wall of the second friction component has a negative net charge equal to their charge density, the second electrode, to neutralize the negative charge on the second friction component, causes electrons on the second electrode to flow toward one end of the first electrode when the first and second electrodes are connected by a wire, thereby generating an electric current. Similarly, when the first friction component moves to the inner wall of the second friction component corresponding to the second electrode, electrons flow from the first electrode through the wire to the second electrode, generating an electric current. As the rotation proceeds, the charge continues to flow, thereby converting mechanical energy into electrical energy and achieving a high power generation capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic structural diagram of the gyroscopic friction nano-power generation device provided by the present invention;

[0018] Figure 2 An exploded view of the power generation body provided by the present invention;

[0019] Figure 3 A schematic structural diagram of the power generation body provided by the present invention;

[0020] Figure 4 A schematic structural diagram of the friction power generation assembly provided by the present invention;

[0021] Figure 5 A schematic structural diagram of the second friction component provided by the present invention;

[0022] Figure 6 A schematic structural diagram of the first friction component provided by the present invention;

[0023] Figure 7 A schematic diagram of the power generation principle of the gyroscopic friction nano-power generation device provided by the present invention;

[0024] In the figure: 100, gyroscopic friction nano-power generation device; 1, track device; 101, hand-held component; 102, track body; 103, bracket; 2, power generation body; 201, friction power generation component; 202, limiting component; 203, first electrode; 204, second electrode; 205, first friction component; 206, second friction component; 207, limiting surface; 3, rolling body. DETAILED DESCRIPTION

[0025] 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.

[0026] The purpose of the present invention is to provide a gyroscopic friction nano-power generation device to solve the problems existing in the above-mentioned prior art, with a simple structure and high power generation capacity.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] like Figure 1-7 As shown, the present invention provides a gyroscopic friction nanometer power generation device 100, comprising a track device 1, a power generation body 2 and two rolling bodies 3, the track device 1 comprises a handheld component 101 and two annular track bodies 102, the handheld component 101 is fixedly connected to the two track bodies 102; the power generation body 2 comprises a friction power generation component 201 and a limiting component 202, the power generation body 2 is arranged between the two rolling bodies 3 and is fixedly connected to the two rolling bodies 3, each rolling body 3 can be magnetically adsorbed with each track body 102 and each rolling body 3 can roll along each track body 102 under the action of an external force parallel to the tangential direction of each track body 102; the friction power generation component 201 comprises a first electrode 203, a second electrode 204, a first friction component 205 and a circular second friction component 206, the outer surface of the first friction component 205 can contact the inner wall of the second friction component 206, and the first friction component 201 can be fixedly connected to the two rolling bodies 3. The outer surface of component 205 and the inner wall of the second friction component 206 have different friction electrode sequences. The first electrode 203 and the second electrode 204 are both fixedly connected to the outer wall of the second friction component 206, and the first electrode 203 and the second electrode 204 do not contact each other; the limiting component 202 is fixedly connected to the friction power generation component 201, and the limiting component 202 has two limiting surfaces 207. The direction from the axial middle section of the second friction component 206 to the plane where one track body 102 is located is the first direction, and the direction from the axial middle section of the second friction component 206 to the plane where the other track body 102 is located is the second direction. The two limiting surfaces 207 can respectively limit the movement of the first friction component 205 along the first direction and the second direction. Each rolling body 3 can roll along each track body 102 to make the first friction component 205 roll along the inner wall of the second friction component 206 under the action of centrifugal force.

[0029] In the gyroscopic friction nanometer power generation device 100 provided by the present invention, each rolling body 3 can be magnetically attracted to each track body 102 and each rolling body 3 can roll along each track body 102 under the action of an external force parallel to the tangential direction of each track body 102; each rolling body 3 can make the first friction component 205 roll along the inner wall of the second friction component 206 under the action of centrifugal force by rolling along each track body 102; when the gyroscopic friction nanometer power generation device 100 is shaken in the plane where the track body 102 is located, an interaction force is generated between the rolling body 3 and the track body 102, and the rolling body 3 is subjected to the action of the adsorption force of the track body 102, the external force and the inertia force of the rolling body 3. When used, it can roll along the track body 102, that is, convert the low-frequency movement of the human body and other external factors into the high-frequency movement of the friction power generation component 201; the friction power generation component 201 includes a first electrode 203, a second electrode 204, a first friction component 205 and a circular second friction component 206, the outer surface of the first friction component 205 is used to contact the inner wall of the second friction component 206, and the outer surface of the first friction component 205 and the inner wall of the second friction component 206 have different friction electrode sequences, the first electrode 203 and the second electrode 204 are both fixedly connected to the outer wall of the second friction component 206, and the first electrode 203 and the second electrode 204 do not contact each other. Since the outer surface of the first friction component 205 and the inner wall of the second friction component 206 have different triboelectric sequences, the outer surface of the first friction component 205 and the inner wall of the second friction component 206 have different degrees of attraction to electric charges. When the first friction component 205 is arranged opposite to the first electrode 203 and contacts or slides with the second friction component 206, negative charges are transferred from the surface of the material with a relatively positive polarity in the triboelectric sequence to the surface of the material with a relatively negative polarity in the triboelectric sequence. For example, when the first friction component 205 loses electrons and the second friction component 206 gains electrons when the first friction component 205 contacts the second friction component 206, when the outer surface of the first friction component 205 has When there is a positive net charge and the inner wall of the second friction component 206 carries a negative net charge equal to its charge density, in order to neutralize the negative charge on the second friction component 206, when the first electrode 203 and the second electrode 204 are connected by a wire, electrons on the second electrode 204 flow toward one end of the first electrode 203, thereby generating an electric current; similarly, when the first friction component 205 moves to the inner wall of the second friction component 206 corresponding to the second electrode 204, electrons flow from the first electrode 203 through the wire to the second electrode 204 to form an electric current; as the rotation process proceeds, the charge will continue to flow, thereby realizing the conversion of mechanical energy into electrical energy.The gyroscopic friction nano-power generation device 100 provided by the present invention retains the advantage of high voltage output of friction nano-power generation, and converts the low-frequency movement of the human body into high-frequency movement of the first friction component 205, thereby compensating for the defect of low current density output of the friction nano-generator, effectively improving energy conversion efficiency and power generation capacity.

[0030] In a preferred embodiment, the limiting component 202 is a shell having an inner cavity. The first electrode 203, the second electrode 204, and the second friction component 206 are all fixedly connected within the inner cavity of the shell. The two ends of the shell are respectively fixedly connected to the two rolling elements 3. The two inner walls of the shell perpendicular to the axis of the second friction component 206 serve as two limiting surfaces 207. The shell prevents the first friction component 205 from falling and provides protection for the first electrode 203, the second electrode 204, the first friction component 205, and the second friction component 206. It should be noted that the limiting component 202 is not limited to the form of a shell. For example, it can also be two limiting plates perpendicular to the axis of the second friction component 206, each of which is fixedly connected to the second friction component 206. The two limiting plates and the second friction component 206 enclose a closed cavity, and the surface of each limiting plate near the center of the second friction component 206 serves as the limiting surface 207.

[0031] Each track body 102 is a magnet or a metal that can be magnetically adsorbed, and each rolling body 3 is a metal or magnet that can be magnetically adsorbed, so that the rolling body 3 can roll along the track body 102 under the action of mutual adsorption force with the track body 102, external force and inertia force of the rolling body 3.

[0032] As a preferred embodiment, the first electrode 203 and the second electrode 204 are symmetrically distributed with respect to the axial cross-section of the second friction component 206 .

[0033] The outer surface of the first friction component 205 and / or part or all of the inner wall of the second friction component 206 may have microstructures, wherein the microstructures are nanostructures or microstructures. This helps to increase the contact area between the first friction component 205 and the second friction component 206, thereby generating more triboelectric charges on the contact surface and increasing the output electrical energy.

[0034] As a preferred embodiment, the microstructure is an array structure formed by at least one of nanowires, nanotubes, nanoparticles, nanorods, nanoflowers, nanogrooves, microgrooves, nanocones, microcones, nanospheres and microspheres.

[0035] As a preferred embodiment, the outer diameter and / or inner diameter of the two track bodies 102 are the same, and the axes of the two track bodies 102 and the two rolling bodies 3 are parallel, so that the rolling bodies 3 can roll along the inner wall or outer wall of the track body 102.

[0036] As a preferred embodiment, the cross section of the shell is annular, the first electrode 203 and the second electrode 204 are partially annular, and the inner walls of the first electrode 203 and the second electrode 204 are in full contact with the outer wall of the second friction component 206, and the first friction component 205 is spherical.

[0037] As a preferred embodiment, the material of the first friction member 205 is preferably nylon, and the material of the second friction member 206 is preferably polyimide. The greater the difference in triboelectric sequence between the first friction member 205 and the second friction member 206, the greater the power generation, so it is preferred that the materials of the first friction member 205 and the second friction member 206 have a large difference in electron gain and loss capabilities.

[0038] In a preferred embodiment, the housing is gyro-shaped and made of an insulating material, such as resin. The second friction member 206 is made of an insulating material, preferably polyimide, to prevent the charge generated by the second friction member 206 from being lost quickly, ensuring that the charge does not leak during a single rotation cycle of the first friction member 205, thereby ensuring the stability of the generated potential difference.

[0039] As a preferred embodiment, handheld component 101 includes a bracket 103 and a handle. One end of bracket 103 is fixedly connected to both track bodies 102, and the other end of bracket 103 is fixedly connected to the handle. It should be noted that the connection position of handheld component 101 (bracket 103) and each track body 102 is not restricted, but handheld component 101 must not hinder the rolling of rolling element 3 along the outer or inner ring of track body 102.

[0040] The gyroscopic friction nano-power generation device 100 provided by the present invention is low-cost and simple to manufacture. It converts the shaking of a person's hand into the rotation of the first friction component 205 and collects the mechanical energy generated by the rotation of the first friction component 205, thereby improving the energy collection capacity of the generator to power small devices and improve energy utilization.

[0041] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A gyroscopic friction nano-power generation device, characterized by: It includes a track device, a power generation body and two rolling bodies, the track device includes a handheld component and two annular track bodies, the handheld component is fixedly connected to the two track bodies; the power generation body includes a friction power generation component and a limiting component, the power generation body is arranged between the two rolling bodies and is fixedly connected to the two rolling bodies, each of the rolling bodies can be magnetically adsorbed with each of the track bodies and each of the rolling bodies can roll along each of the track bodies under the action of an external force parallel to the tangential direction of each of the track bodies; the friction power generation component includes a first electrode, a second electrode, a first friction component and a circular second friction component, the outer surface of the first friction component can contact the inner wall of the second friction component, and the outer surface of the first friction component is in contact with the inner wall of the second friction component The inner wall has different friction electrode sequences, the first electrode and the second electrode are fixedly connected to the outer wall of the second friction component, and the first electrode and the second electrode do not contact each other; the limiting component is fixedly connected to the friction power generation component, and the limiting component has two limiting surfaces. The direction from the axial middle section of the second friction component to the plane where one of the track bodies is located is the first direction, and the direction from the axial middle section of the second friction component to the plane where the other track body is located is the second direction. The two limiting surfaces can respectively limit the movement of the first friction component along the first direction and the second direction, and each rolling body can make the first friction component roll along the inner wall of the second friction component under the action of centrifugal force by rolling along each track body.

2. The gyroscopic triboelectric nano-power generation device according to claim 1, characterized in that: The limiting component is a shell having an inner cavity, the first electrode, the second electrode and the second friction component are all fixedly connected to the inner cavity of the shell, the two ends of the shell are respectively fixedly connected to the two rolling elements, and the two inner walls of the shell perpendicular to the axis of the second friction component are the two limiting surfaces.

3. The gyroscopic triboelectric nano-power generation device according to claim 1, wherein: Each of the track bodies is a magnet or a metal that can be magnetically attracted, and each of the rolling elements is a metal or a magnet that can be magnetically attracted.

4. The gyroscopic triboelectric nano-power generation device according to claim 1, wherein: The first electrode and the second electrode are symmetrically distributed with respect to an axial cross-section of the second friction member.

5. The gyroscopic triboelectric nano-power generation device according to claim 1, wherein: The outer surface of the first friction component and / or a part or all of the inner wall of the second friction component have microstructures.

6. The gyroscopic triboelectric nano-power generation device according to claim 5, characterized in that: The microstructure is an array structure formed by at least one of nanowires, nanotubes, nanoparticles, nanorods, nanoflowers, nanogrooves, microgrooves, nanocones, microcones, nanospheres and microspheres.

7. The gyroscopic triboelectric nano-power generation device according to claim 1, wherein: The outer diameters and / or inner diameters of the two track bodies are the same, and the axes of the two track bodies and the two rolling bodies are parallel.

8. The gyroscopic triboelectric nano-power generation device according to claim 2, characterized in that: The cross section of the shell is annular, the first electrode and the second electrode are partially annular, and the inner walls of the first electrode and the second electrode are in complete contact with the outer wall of the second friction component, and the first friction component is spherical.

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