CN117650718A - Portable mechanical energy collection device based on friction nano power generation technology - Google Patents

Portable mechanical energy collection device based on friction nano power generation technology Download PDF

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Publication number
CN117650718A
CN117650718A CN202311701330.9A CN202311701330A CN117650718A CN 117650718 A CN117650718 A CN 117650718A CN 202311701330 A CN202311701330 A CN 202311701330A CN 117650718 A CN117650718 A CN 117650718A
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CN
China
Prior art keywords
power generation
mechanical energy
inner wheel
device based
gear
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Pending
Application number
CN202311701330.9A
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Chinese (zh)
Inventor
曲志刚
王晓鹏
安阳
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Tianjin University of Science and Technology
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Tianjin University of Science and Technology
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Publication date
Application filed by Tianjin University of Science and Technology filed Critical Tianjin University of Science and Technology
Priority to CN202311701330.9A priority Critical patent/CN117650718A/en
Publication of CN117650718A publication Critical patent/CN117650718A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
    • H02N1/04—Friction generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
    • F03G7/08—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for recovering energy derived from swinging, rolling, pitching or like movements, e.g. from the vibrations of a machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
    • F16H37/122—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types for interconverting rotary motion and oscillating motion

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention provides a portable mechanical energy collecting device based on a friction nano power generation technology, which comprises a transmission unit and a power generation unit which are connected, wherein the transmission unit comprises a compound pendulum, a one-way clutch and a speed increasing gear set which are sequentially connected, the power generation unit comprises a rotor part provided with a friction layer and a stator part provided with an electrode layer, the compound pendulum drives the one-way clutch and the speed increasing gear set to rotate under the action of external force, and the rotor part synchronously rotates along with the speed increasing gear set. The device is applied to collecting low-frequency and random mechanical energy in the environment, and converts the mechanical energy into electric energy to supply power for the micro equipment, so that the use of an external power supply is avoided; the unique transmission mechanism can convert external low-frequency mechanical motion into unidirectional high-speed rotation of the rotor, and ultrahigh frequency multiplication output is generated, so that the energy collection efficiency is greatly improved.

Description

Portable mechanical energy collection device based on friction nano power generation technology
Technical Field
The invention belongs to the technical field of nano power generation, and particularly relates to a portable mechanical energy collecting device based on a friction nano power generation technology.
Background
With the rapid development of microelectronic and wireless communication technologies, the power consumption of microelectronic devices is significantly reduced. Meanwhile, various miniature energy collectors are appeared and are gradually combined with low-power consumption electronic equipment to realize a self-powered and self-driven system. The mechanical energy in the nature is widely distributed and huge in total amount, and is hopeful to be collected and converted into electric energy for microelectronic equipment through an energy collection technology.
In recent years, a friction nano generator (TENG) has been used as an emerging energy harvesting technology for obtaining various mechanical energy wasted in people's daily life, including human body movement, object vibration, mechanical triggering, tire rotation, etc. Compared with the traditional friction nano generator with a linear resonance structure, the friction nano generator based on the pendulum structure has the advantages of wider working frequency range, lower damping, more degrees of freedom and the like, and is particularly suitable for capturing mechanical movements with low frequency and random amplitude.
As disclosed in chinese patent application publication No. CN110011562 a, an oscillating friction nano-generator comprises: the device comprises a mass block, an inner cylinder cover plate, a bearing, an arched flexible film array, a central shaft, an outer cylinder, an electrode array and an outer cylinder cover plate. The power generation part of the invention is an independent layer type friction nano-generator formed by an arched flexible film array and an electrode array; the other portions ensure sufficient contact and relative movement of the arched flexible membrane array and the electrode array. The arch structure of the flexible film facilitates the relative movement of the film and the electrode, and can convert various swinging or vibrating energy into electric energy.
However, the above prior art has the following problems:
1. the energy collection efficiency of the transmission system is in direct proportion to the rotating speed of the rotor, and the rotor rotating speed is not high due to simple swinging friction, so that the power generation efficiency is low;
2. bi-directional motion makes it difficult to continue rotating the rotor.
Therefore, how to design a new energy conversion mechanism to collect the low-frequency mechanical energy efficiently and improve the power generation efficiency is a technical problem to be solved urgently.
Disclosure of Invention
Aiming at the defects in the background technology, the invention provides a portable mechanical energy collecting device based on a friction nano power generation technology, which solves the technical problem of low power generation efficiency.
The technical scheme of the application is as follows:
the utility model provides a portable mechanical energy collection device based on friction nanometer electricity generation technology, includes continuous drive unit and power generation unit, the drive unit is including compound pendulum, one-way clutch, the acceleration rate gear train that connects gradually, the power generation unit is including the rotor portion that is provided with the friction layer, the stator portion of electrode layer, compound pendulum drives one-way clutch, the acceleration rate gear train rotation under the exogenic action, rotor portion rotates along with the acceleration rate gear train is synchronous. The invention is applied to collecting low-frequency and random mechanical energy in the environment and converting the mechanical energy into electric energy to supply power for the micro equipment, thereby avoiding the use of an external power supply; the unique transmission mechanism can convert external low-frequency mechanical motion into unidirectional high-speed rotation of the rotor, and ultrahigh frequency multiplication output is generated, so that the energy collection efficiency is greatly improved; the device can collect the energy of the angular rotation motion in the direction of the rotating shaft, has a wider working frequency band and smaller mechanical damping, and greatly improves the energy collecting capacity and universality; the coaxial transmission mechanism ensures the compactness among all the components, has small volume and high space utilization rate, can be worn by a human body or a moving object, is used for collecting mechanical energy generated by the movement, and has good portability.
Further, the compound pendulum comprises a swing rod, the swing rod is connected with an arc pendulum, a first bearing for a shaft rod to pass through is arranged at the upper end of the swing rod, the swing rod is connected with the one-way clutch, and the transmission unit drives the power generation unit to rotate and generate power.
Further, the one-way clutch is connected with the swing rod through an inner wheel, an outer ring is sleeved on the periphery of the inner wheel, rollers are arranged between the outer ring and the inner wheel, and the inner wheel swings along the inner wall of the outer ring along with the swing rod.
Further, a notch for placing the roller is formed in the inner wheel, the size of one end of the notch is larger than the diameter of the roller, the size of the other end of the notch is smaller than the diameter of the roller, when the inner wheel rotates positively, a gap exists between the roller and the inner wheel and between the roller and the outer ring, the outer ring does not rotate along with the inner wheel, and when the inner wheel rotates reversely, the roller is clamped between the inner wheel and the outer ring, and the outer ring rotates along with the inner wheel.
Further, the inner wheel is provided with a plurality of notches.
Further, the speed increasing gear set includes an inner gear ring connected with the outer ring, the inner gear ring being engaged with a main gear, the main gear being connected with the rotor portion.
Further, the speed increasing gear set comprises an inner gear ring connected with the outer ring, the inner gear ring is coaxially connected with a main gear, a transition gear is meshed between the main gear and the inner gear ring, the effect of increasing the rotating speed is achieved, and the main gear is connected with the rotor portion.
Further, the friction layer comprises a radially arranged PTFE film array arranged on the outer side face of the rotor part, the electrode layer comprises first electrodes and second electrodes which are arranged on the inner side face of the stator part in a circumferentially equidistant and alternate arrangement mode, and the outer side face is attached to the inner side face.
Further, the transmission unit and the power generation unit are both arranged in the shell, a second hole for the shaft rod to pass through is formed in the shell, and the outer side face of the stator part is connected with the inner side face of the shell.
Further, the centers of the rotor part and the stator part are respectively provided with a hole III for the shaft rod to pass through, the first bearing, the second bearing arranged at the center of the inner wheel, the first hole arranged at the center of the main gear, the second hole and the third hole are all positioned on the same straight line, and all components swing around the shaft rod.
The invention has the following specific beneficial effects:
1. the invention is applied to collecting low-frequency and random mechanical energy in the environment and converting the mechanical energy into electric energy to supply power for the micro equipment, thereby avoiding the use of an external power supply;
2. the unique transmission mechanism can convert external low-frequency mechanical motion into unidirectional high-speed rotation of the rotor, and ultrahigh frequency multiplication output is generated, so that the energy collection efficiency is greatly improved;
3. the device can collect the energy of the angular rotation motion in the direction of the rotating shaft, has a wider working frequency band and smaller mechanical damping, and greatly improves the energy collecting capacity and universality;
4. the coaxial transmission mechanism ensures the compactness among all the components, has small volume and high space utilization rate, can be worn by a human body or a moving object, is used for collecting mechanical energy generated by the movement, and has good portability.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings that are required for the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a schematic view of a shaft according to the present invention;
FIG. 3 is a schematic view of a compound pendulum of the present invention 1;
FIG. 4 is a schematic view of a compound pendulum of the present invention shown in FIG. 2;
FIG. 5 is a schematic illustration of a one-way clutch of the present invention;
FIG. 6 is a cross-sectional view of a one-way clutch of the present invention;
FIG. 7 is a schematic diagram of a speed increasing gear set of the present invention;
FIG. 8 is a schematic view of a main gear of the present invention;
FIG. 9 is a schematic view of the inner side of the rotor portion of the present invention;
FIG. 10 is a schematic view of the outer side of the rotor portion of the present invention;
FIG. 11 is a schematic view of the inner side of the stator portion of the present invention;
FIG. 12 is a schematic view of the outer side of the stator portion of the present invention;
fig. 13 is a schematic view of a housing in the present invention.
Reference numerals illustrate:
1. a transmission unit; 2. a power generation unit;
3. a rotor section; 4. a stator part;
5. a shaft lever; 6. a compound pendulum;
7. a one-way clutch; 8. a speed increasing gear set;
9. swing rod; 10. arc pendulum bob;
11. a first bearing; 12. a boss I;
13. a second bearing; 14. an inner wheel;
15. a circular ring; 16. a roller;
17. a notch; 18. a beam arm;
19. an inner gear ring; 20. a clamping block;
21. a main gear; 22. a transition gear;
23. a boss II; 24. a fixed rod;
25. a housing; 26. an array of PTFE membranes;
27. an electrode I; 28. an electrode II;
29. a buckle; 30. a central bore.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
Embodiment 1, a portable mechanical energy collection device based on friction nanometer electricity generation technique, as shown in fig. 1, including drive unit 1 and power generation unit 2 that link to each other, drive unit 1 is including compound pendulum 6, one-way clutch 7, the acceleration rate gear train 8 that connect gradually, power generation unit 2 is including rotor portion 3, the stator portion 4 of electrode layer that is provided with the friction layer, compound pendulum 6 drives one-way clutch 7, the acceleration rate gear train 8 rotation under the exogenic action, rotor portion 3 rotates along with acceleration rate gear train 8 synchronization. The invention is applied to collecting low-frequency and random mechanical energy in the environment and converting the mechanical energy into electric energy to supply power for the micro equipment, thereby avoiding the use of an external power supply; the unique transmission mechanism can convert external low-frequency mechanical motion into unidirectional high-speed rotation of the rotor, and ultrahigh frequency multiplication output is generated, so that the energy collection efficiency is greatly improved; the device can collect the energy of the angular rotation motion in the direction of the rotating shaft, has a wider working frequency band and smaller mechanical damping, and greatly improves the energy collecting capacity and universality; the coaxial transmission mechanism ensures the compactness among all the components, has small volume and high space utilization rate, can be worn by a human body or a moving object, is used for collecting mechanical energy generated by the movement, and has good portability.
On the basis of the above embodiment, as shown in fig. 3 and 4, the compound pendulum 6 includes a swing rod 9, the lower end of the swing rod 9 is connected with an arc pendulum 10, the upper end of the swing rod 9 is provided with a bearing one 11 through which the shaft lever 5 passes, and the swing rod 9 is connected with the one-way clutch 7. The upper end of the swing rod 9 is provided with a first bearing 11 for the shaft lever 5 to pass through, and the periphery of the first bearing 11 is provided with a first boss 12 connected with the one-way clutch 7.
Preferably, the circular arc pendulum 10 is designed as a sector ring so as to make the center as outer as possible to obtain a larger moment of inertia, thereby improving the swinging effect. The boss I12 is annularly protruded around the bearing I11, is connected with the one-way clutch 7, and enables the compound pendulum 6 to have a gap with the one-way clutch 7 so as to prevent collision.
On the basis of the above embodiment, as shown in fig. 5, the one-way clutch 7 is connected with the swing rod 9 through an inner ring 14, an outer ring 15 is sleeved on the outer periphery of the inner ring 14, a roller 16 is arranged between the outer ring 15 and the inner ring 14, and the inner ring 14 swings along with the swing rod 9 along the inner wall of the outer ring 15.
Specifically, as shown in fig. 6, a protrusion one is provided along a central line of the inner wall of the outer ring 15, a groove one engaged with the protrusion one is provided on the outer circumferential surface of the inner wheel 14, and the inner wheel 14 rotates along the inner wall of the outer ring 15.
On the basis of the above embodiment, the inner wheel 14 is provided with the notch 17 for placing the roller 16, one end 4 of the notch 17 has a size larger than the diameter of the roller 16, the other end of the notch 17 has a size smaller than the diameter of the roller 16, when the inner wheel 14 rotates forward, a gap exists between the roller 16 and the inner wheel 14 and between the outer ring 15, the outer ring 15 does not rotate along with the inner wheel 14, when the inner wheel 14 rotates reversely, the roller 16 is clamped between the inner wheel 14 and the outer ring 15, the outer ring 15 rotates along with the inner wheel 14, and the outer ring 15 rotates along with the inner wheel 14 to convert external swinging into unidirectional continuous rotation.
Specifically, a second protrusion is disposed on the bottom surface of the notch 17, a second groove matched with the second protrusion is circumferentially disposed on the side surface of the roller 16, and the roller 16 is disposed between the first protrusion and the second protrusion and rolls.
On the basis of the above embodiment, the inner wheel 14 is provided with a plurality of notches 17.
Preferably, three notches 17 are provided, evenly distributed along the circumference of the inner wheel 14.
On the basis of the above embodiment, the speed increasing gear set 8 includes an inner gear ring 19 connected to the outer ring 15, the inner gear ring 19 being meshed with a main gear 21, the main gear 21 being connected to the rotor portion 3. The main gear 21 is provided with a first hole through which the shaft lever 5 passes, a second boss 23 is provided on a side surface of the main gear 21 adjacent to the power generation unit 2, and as shown in fig. 8, the second boss 23 is connected to the rotor portion 3.
Specifically, a beam arm 18 for driving the speed increasing gear set 8 to rotate is disposed along the outer surface of the outer ring 15, the speed increasing gear set 8 includes a clamping block 20 disposed along the side surface of the inner gear ring 19, and as shown in fig. 7, the clamping block 20 is overlapped with the beam arm 18.
Preferably, four beam arms 18 are provided on the outer surface of the outer ring 15, four clamping blocks 20 are provided on the side surface of the inner gear ring 19, and rotation of the beam arms 18 drives the clamping blocks 20 to rotate synchronously, and simultaneously drives the inner gear ring 19 to rotate synchronously.
Specifically, the second boss 23 on the outer side of the main gear 21 leaves a gap between the rotor and the ring gear 19 to prevent collision when the rotor 3 is connected.
On the basis of the above embodiment, as shown in fig. 9 to 12, the friction layer includes a radially arranged PTFE film array 26 disposed on the outer side surface of the rotor portion 3, and the electrode layer includes electrodes one 27 and two 28 disposed on the inner side surface of the stator portion 4 and alternately disposed at equal intervals in the circumferential direction, and the outer side surface is in contact with the inner side surface.
Specifically, the base of the rotor portion 3 is an acrylic plate, and a hole is formed in the middle of the base to allow the shaft lever 5 to pass through. The outer side of the rotor is stuck with PTFE films which are arranged in radial direction and used as a friction layer. The base of the stator part 4 is an acrylic plate, a hole is formed in the middle of the stator part to allow the shaft rod 5 to pass through, the first electrode 27 and the second electrode 28 are copper foil electrodes, a plurality of the first electrodes 27 are electrically connected, a plurality of the second electrodes 28 are electrically connected, and every two adjacent first electrodes 27 and the second electrodes 28 form an electrode pair and are connected through an external circuit.
Preferably, both the rotor portion 3 and the stator portion 4 are circular.
In the above embodiment, as shown in fig. 13, the transmission unit 1 and the power generation unit 2 are both disposed in a housing 25, a hole two through which the shaft 5 passes is provided in the housing 25, the outer side surface of the stator portion 4 is connected to the inner side surface of the housing 25, and the stator portion 4 is fixed to the inner wall of the housing 25, so that when the rotor portion 3 rotates, the power generation unit generates power by friction with the stator portion 4.
Specifically, the housing 25 is circular, the housing 25 includes a housing body and a housing cover, the transmission unit 1 and the power generation unit 2 are all encapsulated in the housing body, and the shaft lever 5 passes through all components to play a supporting role, so that the device rotates to generate power.
In addition to the above-described embodiments, as a preferred embodiment, the center of each of the rotor portion 3 and the stator portion 4 is provided with a hole three through which the shaft 5 passes, the bearing one 11, the bearing two 13 provided at the center of the inner wheel 14, the hole one provided at the center of the main gear 21, the hole two, and the hole three are all positioned on the same straight line, and all members swing around the shaft 5.
The invention is applied to collecting low-frequency and random mechanical energy in the environment and converting the mechanical energy into electric energy to supply power for the micro equipment, thereby avoiding the use of an external power supply; the unique transmission mechanism can convert external low-frequency mechanical motion into unidirectional high-speed rotation of the rotor, and ultrahigh frequency multiplication output is generated, so that the energy collection efficiency is greatly improved; the device can collect the energy of the angular rotation motion in the direction of the rotating shaft, has a wider working frequency band and smaller mechanical damping, and greatly improves the energy collecting capacity and universality; the coaxial transmission mechanism ensures the compactness among all the components, has small volume and high space utilization rate, can be worn by a human body or a moving object, is used for collecting mechanical energy generated by the movement, and has good portability.
Embodiment 2, as a preferred embodiment of the portable mechanical energy collecting device based on the friction nano power generation technology, is different from embodiment 1 in that the portable mechanical energy collecting device comprises a transmission unit 1 and a power generation unit 2 which are connected, wherein the transmission unit 1 comprises a compound pendulum 6, a one-way clutch 7 and a speed increasing gear set 8 which are sequentially connected, the power generation unit 2 comprises a rotor part 3 provided with a friction layer and a stator part 4 provided with an electrode layer, the compound pendulum 6 drives the one-way clutch 7 and the speed increasing gear set 8 to rotate under the action of external force, and the rotor part 3 synchronously rotates along with the speed increasing gear set 8. The invention is applied to collecting low-frequency and random mechanical energy in the environment and converting the mechanical energy into electric energy to supply power for the micro equipment, thereby avoiding the use of an external power supply; the unique transmission mechanism can convert external low-frequency mechanical motion into unidirectional high-speed rotation of the rotor, and ultrahigh frequency multiplication output is generated, so that the energy collection efficiency is greatly improved; the device can collect the energy of the angular rotation motion in the direction of the rotating shaft, has a wider working frequency band and smaller mechanical damping, and greatly improves the energy collecting capacity and universality; the coaxial transmission mechanism ensures the compactness among all the components, has small volume and high space utilization rate, can be worn by a human body or a moving object, is used for collecting mechanical energy generated by the movement, and has good portability.
On the basis of the above embodiment, as shown in fig. 3 and 4, the compound pendulum 6 includes a swing rod 9, the lower end of the swing rod 9 is connected with an arc pendulum 10, the upper end of the swing rod 9 is provided with a bearing one 11 through which the shaft lever 5 passes, and the swing rod 9 is connected with the one-way clutch 7. The upper end of the swing rod 9 is provided with a first bearing 11 for the shaft lever 5 to pass through, and the periphery of the first bearing 11 is provided with a first boss 12 connected with the one-way clutch 7.
Preferably, the circular arc pendulum 10 is designed as a sector ring so as to make the center as outer as possible to obtain a larger moment of inertia, thereby improving the swinging effect. The boss I12 is annularly protruded around the bearing I11, is connected with the one-way clutch 7, and enables the compound pendulum 6 to have a gap with the one-way clutch 7 so as to prevent collision.
On the basis of the above embodiment, as shown in fig. 5, the one-way clutch 7 is connected with the swing rod 9 through an inner ring 14, an outer ring 15 is sleeved on the outer periphery of the inner ring 14, a roller 16 is arranged between the outer ring 15 and the inner ring 14, and the inner ring 14 swings along with the swing rod 9 along the inner wall of the outer ring 15.
Specifically, as shown in fig. 6, a protrusion one is provided along a central line of the inner wall of the outer ring 15, a groove one engaged with the protrusion one is provided on the outer circumferential surface of the inner wheel 14, and the inner wheel 14 rotates along the inner wall of the outer ring 15.
On the basis of the above embodiment, the inner wheel 14 is provided with a notch 17 for placing the roller 16, one end of the notch 17 is larger than the diameter of the roller 16, the other end of the notch 17 is smaller than the diameter of the roller 16, when the inner wheel 14 rotates forward, a gap exists between the roller 16 and the inner wheel 14 and between the roller 16 and the outer ring 15, the outer ring 15 does not rotate along with the inner wheel 14, when the inner wheel 14 rotates reversely, the roller 16 is clamped between the inner wheel 14 and the outer ring 15, and the outer ring 15 rotates along with the inner wheel 14 to convert external swinging into unidirectional continuous rotation.
Specifically, a second protrusion is disposed on the bottom surface of the notch 17, a second groove matched with the second protrusion is circumferentially disposed on the side surface of the roller 16, and the roller 16 is disposed between the first protrusion and the second protrusion and rolls.
On the basis of the above embodiment, the inner wheel 14 is provided with a plurality of notches 17.
Preferably, three notches 17 are provided, evenly distributed along the circumference of the inner wheel 14.
On the basis of the above embodiment, the speed increasing gear set 8 includes an inner gear ring 19 connected with the outer ring 15, the inner gear ring 19 is coaxially connected with a main gear 21, a transition gear 22 is meshed between the main gear 21 and the inner gear ring 19, and as shown in fig. 7, the main gear 21 is connected with the rotor portion 3. The main gear 21 is provided with a first hole through which the shaft lever 5 passes, a second boss 23 is provided on a side surface of the main gear 21 adjacent to the power generation unit 2, and as shown in fig. 8, the second boss 23 is connected to the rotor portion 3.
Specifically, the shaft lever 5 is sleeved with a fixing rod 24, as shown in fig. 2, a buckle 29 at the lower end of the fixing rod 24 is connected with a central hole 30 of the transition gear 22, the number of teeth of the inner gear ring 19 is n1, the number of teeth of the main gear 21 is n2, and the transmission ratio is n2/n1, so that the effect of increasing the rotation speed is achieved.
Specifically, a beam arm 18 for driving the speed increasing gear set 8 to rotate is disposed along the outer surface of the outer ring 15, the speed increasing gear set 8 includes a clamping block 20 disposed along a side surface of the inner gear ring 19, as shown in fig. 7, the clamping block 20 is overlapped with the beam arm 18, a main gear 21 is meshed with the inner gear ring 19, a hole I for the shaft lever 5 to pass through is disposed on the main gear 21, a boss II 23 is disposed on a side surface of the main gear 21 adjacent to the power generating unit 2, as shown in fig. 8, and the boss II 23 is connected with the rotor portion 3.
Preferably, four beam arms 18 are provided on the outer surface of the outer ring 15, four clamping blocks 20 are provided on the side surface of the inner gear ring 19, and rotation of the beam arms 18 drives the clamping blocks 20 to rotate synchronously, and simultaneously drives the inner gear ring 19 to rotate synchronously.
Specifically, the second boss 23 on the outer side of the main gear 21 leaves a gap between the rotor and the ring gear 19 to prevent collision when the rotor 3 is connected.
On the basis of the above embodiment, as shown in fig. 9 to 12, the friction layer includes a radially arranged PTFE film array 26 disposed on the outer side surface of the rotor portion 3, and the electrode layer includes electrodes one 27 and two 28 disposed on the inner side surface of the stator portion 4 and alternately disposed at equal intervals in the circumferential direction, and the outer side surface is in contact with the inner side surface.
Specifically, the base of the rotor portion 3 is an acrylic plate, and a hole is formed in the middle of the base to allow the shaft lever 5 to pass through. The outer side of the rotor is stuck with PTFE films which are arranged in radial direction and used as a friction layer. The base of the stator part 4 is an acrylic plate, a hole is formed in the middle of the stator part to allow the shaft rod 5 to pass through, the first electrode 27 and the second electrode 28 are copper foil electrodes, a plurality of the first electrodes 27 are electrically connected, a plurality of the second electrodes 28 are electrically connected, and every two adjacent first electrodes 27 and the second electrodes 28 form an electrode pair and are connected through an external circuit.
Preferably, both the rotor portion 3 and the stator portion 4 are circular.
In the above embodiment, as shown in fig. 13, the transmission unit 1 and the power generation unit 2 are both disposed in a housing 25, a hole two through which the shaft 5 passes is provided in the housing 25, the outer side surface of the stator portion 4 is connected to the inner side surface of the housing 25, and the stator portion 4 is fixed to the inner wall of the housing 25, so that when the rotor portion 3 rotates, the power generation unit generates power by friction with the stator portion 4.
Specifically, the housing 25 is circular, the housing 25 includes a housing body and a housing cover, the transmission unit 1 and the power generation unit 2 are all encapsulated in the housing body, and the shaft lever 5 passes through all components to play a supporting role, so that the device rotates to generate power.
In addition to the above-described embodiments, as a preferred embodiment, the center of each of the rotor portion 3 and the stator portion 4 is provided with a hole three through which the shaft 5 passes, the bearing one 11, the bearing two 13 provided at the center of the inner wheel 14, the hole one provided at the center of the main gear 21, the hole two, and the hole three are all positioned on the same straight line, and all members swing around the shaft 5.
The invention is applied to collecting low-frequency and random mechanical energy in the environment and converting the mechanical energy into electric energy to supply power for the micro equipment, thereby avoiding the use of an external power supply; the unique transmission mechanism can convert external low-frequency mechanical motion into unidirectional high-speed rotation of the rotor, and ultrahigh frequency multiplication output is generated, so that the energy collection efficiency is greatly improved; the device can collect the energy of the angular rotation motion in the direction of the rotating shaft, has a wider working frequency band and smaller mechanical damping, and greatly improves the energy collecting capacity and universality; the coaxial transmission mechanism ensures the compactness among all the components, has small volume and high space utilization rate, can be worn by a human body or a moving object, is used for collecting mechanical energy generated by the movement, and has good portability.
The present invention is not limited to the conventional technical means known to those skilled in the art.
The foregoing has shown and described the basic principles, main features and advantages of the present invention. The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (10)

1. A portable mechanical energy collection device based on friction nanometer power generation technology, its characterized in that: including continuous drive unit (1) and power generation unit (2), drive unit (1) are including compound pendulum (6), one-way clutch (7), the acceleration rate gear train (8) that connect gradually, power generation unit (2) are including rotor portion (3) that are provided with the friction layer, stator portion (4) of electrode layer, compound pendulum (6) drive one-way clutch (7), acceleration rate gear train (8) rotation under the exogenic action, rotor portion (3) are along with acceleration rate gear train (8) synchronous rotation.
2. The portable mechanical energy harvesting device based on friction nano-power generation technology of claim 1, wherein: the compound pendulum (6) comprises a swing rod (9), the swing rod (9) is connected with an arc pendulum (10), a first bearing (11) for a shaft rod (5) to pass through is arranged at the upper end of the swing rod (9), and the swing rod (9) is connected with the one-way clutch (7).
3. The portable mechanical energy harvesting device based on friction nano-power generation technology of claim 2, wherein: the one-way clutch (7) is connected with the swing rod (9) through an inner wheel (14), an outer ring (15) is sleeved on the periphery of the inner wheel (14), a roller (16) is arranged between the outer ring (15) and the inner wheel (14), and the inner wheel (14) swings along with the swing rod (9) along the inner wall of the outer ring (15).
4. A portable mechanical energy harvesting device based on friction nano-power generation technology according to claim 3, characterized in that: the novel roller is characterized in that a notch (17) for placing a roller (16) is formed in the inner wheel (14), the size of one end of the notch (17) is larger than the diameter of the roller (16), the size of the other end of the notch (17) is smaller than the diameter of the roller (16), when the inner wheel (14) rotates positively, a gap exists between the roller (16) and the inner wheel (14) and between the roller and the outer ring (15), the outer ring (15) does not rotate along with the inner wheel (14), and when the inner wheel (14) rotates reversely, the roller (16) is clamped between the inner wheel (14) and the outer ring (15), and the outer ring (15) rotates along with the inner wheel (14).
5. The portable mechanical energy harvesting device based on friction nano-power generation technology of claim 4, wherein: the inner wheel (14) is provided with a plurality of notches (17).
6. The portable mechanical energy harvesting device based on friction nano-power generation technology of any one of claims 3-5, wherein: the speed increasing gear set (8) comprises an inner gear ring (19) connected with the outer ring (15), the inner gear ring (19) is meshed with a main gear (21), and the main gear (21) is connected with the rotor part (3).
7. The portable mechanical energy harvesting device based on friction nano-power generation technology of any one of claims 3-5, wherein: the speed increasing gear set (8) comprises an inner gear ring (19) connected with the outer ring (15), the inner gear ring (19) is coaxially connected with a main gear (21), a transition gear (22) is meshed between the main gear (21) and the inner gear ring (19), and the main gear (21) is connected with the rotor part (3).
8. The portable mechanical energy harvesting device based on friction nano-power generation technology of any one of claims 1-5, wherein: the friction layer comprises a radial PTFE film array (26) arranged on the outer side face of the rotor part (3), the electrode layer comprises first electrodes (27) and second electrodes (28) which are arranged on the inner side face of the stator part (4) in a circumferential equidistant alternative arrangement mode, and the outer side face is attached to the inner side face.
9. The portable mechanical energy harvesting device based on friction nano-power generation technology of any one of claims 2-5, wherein: the transmission unit (1) and the power generation unit (2) are arranged in the shell (25), a second hole through which the shaft rod (5) passes is formed in the shell (25), and the outer side face of the stator part (4) is connected with the inner side face of the shell (25).
10. The portable mechanical energy harvesting device based on friction nano-power generation technology of claim 9, wherein: the center of the rotor part (3) and the center of the stator part (4) are respectively provided with a hole III for the shaft rod (5) to pass through, and the first bearing (11), the second bearing (13) arranged at the center of the inner wheel (14), the first hole arranged at the center of the main gear (21) and the second hole and the third hole are all positioned on the same straight line.
CN202311701330.9A 2023-12-12 2023-12-12 Portable mechanical energy collection device based on friction nano power generation technology Pending CN117650718A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311701330.9A CN117650718A (en) 2023-12-12 2023-12-12 Portable mechanical energy collection device based on friction nano power generation technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311701330.9A CN117650718A (en) 2023-12-12 2023-12-12 Portable mechanical energy collection device based on friction nano power generation technology

Publications (1)

Publication Number Publication Date
CN117650718A true CN117650718A (en) 2024-03-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311701330.9A Pending CN117650718A (en) 2023-12-12 2023-12-12 Portable mechanical energy collection device based on friction nano power generation technology

Country Status (1)

Country Link
CN (1) CN117650718A (en)

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