CN111911333A - High-efficiency piezoelectric control type nanometer friction wave power generation device - Google Patents
High-efficiency piezoelectric control type nanometer friction wave power generation device Download PDFInfo
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- CN111911333A CN111911333A CN202010441564.4A CN202010441564A CN111911333A CN 111911333 A CN111911333 A CN 111911333A CN 202010441564 A CN202010441564 A CN 202010441564A CN 111911333 A CN111911333 A CN 111911333A
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- 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
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
- F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
- F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
- F03B13/1845—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom slides relative to the rem
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- 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
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
- F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
- F03B13/20—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" wherein both members, i.e. wom and rem are movable relative to the sea bed or shore
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
Abstract
The invention discloses a high-efficiency piezoelectric control type nanometer friction wave power generation device. The stator of the main generating pole component comprises a stator frame and a piezoelectric displacement actuator, and the piezoelectric displacement actuator is radially arranged in a central cavity; the auxiliary generating electrode component rotor comprises a rotor frame; the main generating electrode component and the auxiliary generating electrode component are respectively fixed with nano friction materials; the annular cavity of the rotor frame and the outer side cavity wall of the central cavity are respectively inserted into the outer ring annular cavity and the inner ring annular cavity of the stator frame, and under the action of wave pairs, the two friction electrodes of the main and the auxiliary friction electrodes generate electricity by relative friction. The invention drives the main friction electrode and the auxiliary friction electrode to move relatively to generate electric energy under waves, improves the energy capture efficiency, and has the advantages of low manufacturing cost, simple structure, higher generating efficiency and easy maintenance.
Description
Technical Field
The invention relates to a wave energy power generation device, in particular to a high-efficiency piezoelectric control type nanometer friction wave energy power generation device.
Background
With the increasing emphasis on environmental protection in the world and the gradual decrease of fossil energy sources on which the world depends, the search for alternative, renewable and clean new energy sources has become a consensus in various countries around the world. Huge energy is stored in the ocean, wave energy is one of the most main energy sources of ocean energy, and the exploitation and utilization of the wave energy are greatly helpful for relieving energy crisis and reducing environmental pollution. The common wave energy power generation devices comprise a nodding duck type, a pendulum type, a wave surface raft type, an oscillating water column type and the like, but all have the defects of large mechanism, low power generation efficiency, expensive equipment, high maintenance cost and the like. The reason is that the core power generation component of the existing wave power generation device depends on the traditional electromagnetic induction generator, and the wave power generation device is greatly limited aiming at the characteristics of low wave frequency, wide dispersion, random wave peak value and the like.
Disclosure of Invention
In view of the problems existing in the background technology, the invention aims to provide a high-efficiency piezoelectric control type nanometer friction wave energy power generation device, the device adopts a cylindrical multilayer nested friction surface design to effectively improve the contact area of friction units, utilizes a piezoelectric actuator to change the pressure between power generation units in real time, and can be used for wave energy collection to improve the wave energy capture efficiency, effectively collect low-frequency wave energy and convert the low-frequency wave energy into electric energy for output.
The technical scheme adopted by the invention is as follows:
the invention mainly comprises a main generating electrode component and an auxiliary generating electrode component which are in a circular ring embedded type, wherein the main generating electrode component and the auxiliary generating electrode component are respectively fixed with a nano friction material;
the main power generation pole component is a stator, the stator comprises a stator frame and a piezoelectric displacement actuator, the stator frame is of a cylinder structure with one end opening to form a cavity, the opening comprises a central cavity with an inner annular cavity and an outer annular cavity positioned in the center of the two annular cavities, the inner wall surface of the outer circumference of each annular cavity is uniformly provided with a friction nano-generator main power generation electrode, the friction nano-generator main power generation electrode is formed by three layers of power generation pole substrates, a first electrode layer and a friction layer film which are sequentially stacked from the wall surface to the center, the piezoelectric displacement actuator is radially arranged in the central cavity, and the piezoelectric displacement actuator is arranged in the rotor frame to provide radial pressure;
the auxiliary generating electrode component is a rotor, the rotor comprises a rotor frame, the rotor frame is of a cylinder structure with an opening at one end, the opening comprises a central cavity with a circle of annular cavity positioned in the center of the circle of annular cavity, the circumferential outer wall of the whole cylinder of the rotor frame and the inner circumferential inner wall surface of the annular cavity are uniformly provided with an auxiliary generating electrode of the friction nano generator, and the auxiliary generating electrode of the friction nano generator is formed by two layers of a second electrode layer and an auxiliary generating electrode substrate which are sequentially arranged in a laminating manner from the wall surface to the center;
the annular cavity of the rotor frame and the outer side cavity wall of the central cavity are respectively inserted into the outer ring annular cavity and the inner ring annular cavity of the stator frame, so that the surfaces of the auxiliary generator electrode of the friction nano generator and the main generator electrode of the friction nano generator are in close contact, and under the action of wave pairs, the two friction electrodes of the main generator and the auxiliary generator are in relative friction power generation.
The main generating electrode component and the auxiliary generating electrode component are arranged in a closed shell, and the shell is arranged below the sea water surface.
The main generating electrode of the friction nano generator and the auxiliary generating electrode of the friction nano generator which are in relative contact are used as two ends of a generating unit, electric energy is output after passing through a rectifier bridge to realize power generation, and the main generating electrode and the auxiliary generating electrode of the friction nano generator can be specifically connected to two ends of a capacitor to store energy and generate power.
Two friction nanometer generator main generating electrodes of the main generating electrode component are connected in series or respectively and independently led out to be connected to a power transmission circuit; two friction nanometer generator auxiliary generating poles of the auxiliary generating pole component are connected in series or are respectively and independently led out to be connected to a power transmission circuit.
The stator is characterized in that three piezoelectric displacement actuators are arranged in a central cavity of the stator frame, the three piezoelectric displacement actuators are respectively arranged at different axial positions of the central cavity, and each piezoelectric displacement actuator is connected between cavity walls along the diameter direction of the central cavity.
The piezoelectric displacement actuator is externally connected with a voltage source, and the voltage applied to two ends of the piezoelectric displacement actuator is changed by the voltage source according to different sea surface wave conditions, so that the contact between the main friction electrode and the auxiliary friction electrode has the optimal pressure value under different sea surface wave conditions, and the maximum power generation efficiency of the device is realized.
The stator frame adopt ya keli material to make, the active cell frame all adopt elastic silica gel material to make.
The stator frame and the rotor frame are both cylinders.
The internal structure of the nano friction wave power generation device adopts a multi-layer circular ring nested main power generation electrode and auxiliary power generation electrode structure, so that the system power density is improved, the friction area is increased, and the power generation power is improved.
Under the action of wave force, the rotor drives the friction nanometer power generation auxiliary electrode to reciprocate up and down to rub with the friction nanometer power generation unit main power generation electrode to generate electric energy, and the radial pressure is controlled and applied in real time by controlling the piezoelectric displacement actuator, so that the system works in an optimal operation efficiency range, and the energy capture efficiency is improved. The system has the advantages of low manufacturing cost, simple structure, higher generating efficiency and easy maintenance.
The invention has the beneficial effects that:
(1) the friction nanometer generator adopts a plurality of friction nanometer generating units, and the generating units are attached to the thin wall of the cylinder and placed into a cylinder form, so that the contact area of friction can be effectively increased, and the friction nanometer generator is beneficial to improving the friction charge density and further improving the generating performance of the friction nanometer generator. The cost is low, simple structure, generating efficiency is higher and easy to maintain.
(2) The piezoelectric displacement actuator utilizing the piezoelectric effect can apply radial pressure to the friction nanometer power generation unit, and the nanometer friction generator can operate in the best working condition by controlling pressure change according to different wave loads, so that the system operation efficiency is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic half-section of the overall structure of the present invention.
Fig. 3 is a schematic view of the stator structure of the device of the present invention.
Figure 4 is a schematic view of a stator half section of the device of the present invention.
Fig. 5 is a side view of a piezoelectric displacement actuator.
Fig. 6 is a perspective view of the piezoelectric displacement actuator.
Fig. 7 is a view showing an axial structure of a mover of the device of the present invention.
Fig. 8 is an external view structural view of a mover of the apparatus of the present invention.
Fig. 9 is a schematic half-section view of the mover of the device of the present invention.
FIG. 10 is a schematic diagram of two friction nano-power generation units connected in parallel by connecting a rectifier bridge and an external circuit according to the present invention.
In the figure: 1. the nano-electricity generating device comprises a stator, 1.1, a piezoelectric displacement actuator, 1.2, a stator frame, 1.3, a friction nano-electricity generating machine main generating electrode, 1.31, an generating electrode substrate, 1.32, a first electrode layer, 1.33 and a friction layer film; 2. 2.1 parts of a rotor, 2.2 parts of a rotor frame, 2.2 parts of a friction nanometer generator secondary generating electrode, 2.21 parts of a second electrode layer, 2.22 parts of a secondary generating electrode substrate.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, wherein the specific embodiments described herein are merely illustrative and explanatory of the invention, and are not restrictive thereof.
As shown in fig. 1 and 2, the device is mainly composed of a main electrode member and a secondary electrode member of a ring nested type, the main electrode member and the secondary electrode member are disposed in a closed housing, and the housing is disposed under the sea water surface. The main generating electrode component and the auxiliary generating electrode component are respectively fixed with a nano friction material, and specifically comprise a stator 1, a piezoelectric displacement actuator 1.1, a stator frame 1.2, a friction nano generator main generating electrode 1.3, a generating electrode substrate 1.31, a first electrode layer 1.32 and a friction layer film 1.33; the nano-generator comprises a rotor 2, a rotor frame 2.1, a friction nano-generator auxiliary generating electrode 2.2, a second electrode layer 2.21 and an auxiliary generating electrode substrate 2.22.
As shown in fig. 3 and 4, the main power generation pole member is a stator 1, the stator 1 includes a stator frame 1.2 and a piezoelectric displacement actuator 1.1, the stator frame 1.2 is a cylindrical structure with an opening at one end to form a cavity, the opening includes a central cavity with an inner ring cavity and an outer ring cavity located at the center of the two ring cavities, the ring cavities and the central cavity are coaxially arranged, the inner wall surface of the outer circumference of each ring cavity is fixedly provided with a friction nano-power generator main power generation electrode 1.3, and the friction nano-power generator main power generation electrode 1.3 is formed by three layers of a power generation pole substrate 1.31, a first electrode layer 1.32 and a friction layer film 1.33 which are sequentially stacked from the wall surface to the center.
As shown in fig. 7-9, the secondary power generation electrode member is a rotor 2, the rotor 2 includes a rotor frame 2.1, the rotor frame 2.1 is a cylinder structure with an opening at one end, the opening includes a central cavity with a circle of annular cavity at the center of the circle of annular cavity, the annular cavity and the central cavity are both coaxially arranged, the friction nano-generator secondary power generation electrode 2.2 is fixedly arranged on the circumferential outer wall of the whole cylinder of the rotor frame 2.1 and the inner circumferential inner wall surface of the annular cavity, and the friction nano-generator secondary power generation electrode 2.2 is formed by two layers of a second electrode layer 2.21 and a secondary power generation electrode base 2.22 which are sequentially stacked from the wall surface to the center.
As shown in fig. 2, the annular cavity and the outside cavity wall of the central cavity of the mover frame 2.1 are respectively inserted into the outer ring annular cavity and the inner ring annular cavity of the stator frame 1.2, so that the surfaces of the friction nano generator secondary generating electrode 2.2 and the friction nano generator main generating electrode 1.3 are in close contact, that is, the friction nano generator secondary generating electrode 2.2 on the outer circumferential wall of the whole cylinder of the mover frame 2.1 and the friction nano generator main generating electrode 1.3 on the outer circumferential inner wall surface of the outer ring annular cavity of the stator frame 1.2 are in close contact, the friction nano generator secondary generating electrode 2.2 on the inner circumferential inner wall surface of the annular cavity of the mover frame 2.1 and the friction nano generator main generating electrode 1.3 on the outer circumferential inner wall surface of the inner ring annular cavity of the stator frame 1.2 are in close contact, and under the action of the.
A friction nanometer generator main generating electrode 1.3 and a friction nanometer generator auxiliary generating electrode 2.2 which are in relative contact are used as two ends of a generating unit, electric energy is output after the electric energy passes through a rectifier bridge to realize power generation, and the friction nanometer generator main generating electrode and the friction nanometer generator auxiliary generating electrode can be connected to two ends of a capacitor to store energy and generate power.
The stator frame 1.2 of the specific implementation is made of an acrylic material, the rotor frame 2.1 is made of an elastic silica gel material, and the materials of the stator frame and the rotor frame are different.
Thus, the main and auxiliary power generation devices in the nanometer friction power generation unit are of a three-layer sandwich structure, the bottom layer substrate 1.32 is fixed on the machine frame, the middle electrode layer 2.21 is fixed on the substrate, and the upper layer is bonded with the friction layer film 1.33. Wherein the friction layer 1.33 and the electrode layer material 2.21 are selected only such that: the friction layer material and the second electrode layer material have a friction electrode sequence difference, and the friction layer is preferably a high-molecular polymer film.
As shown in fig. 5 and 6, a piezoelectric displacement actuator 1.1 is radially installed inside the central cavity, and the piezoelectric displacement actuator 1.1 is used for expanding the central cavity. Specifically, three piezoelectric displacement actuators 1.1 are arranged in a central cavity of a stator frame 1.2, the three piezoelectric displacement actuators 1.1 are respectively arranged at different axial positions of the central cavity and are specifically arranged at two end parts and the middle part of the axial length, and each piezoelectric displacement actuator 1.1 is connected between cavity walls along the diameter direction of the central cavity, so that the central cavity is opened through the piezoelectric displacement actuators 1.1, and the main friction electrode and the auxiliary friction electrode are in close contact.
The piezoelectric displacement actuator 1.1 is externally connected with a voltage source, voltages applied to two ends of the piezoelectric displacement actuator 1.1 are changed through the voltage source according to different sea surface wave conditions, radial deformation is caused by changing the voltages at the two ends of the piezoelectric displacement actuator, and therefore the pressure between the two main and auxiliary friction electrodes is changed, contact between the two main and auxiliary friction electrodes under different sea surface wave conditions is enabled to have an optimal pressure value, and therefore the maximum power generation efficiency of the device is achieved. The inter-electrode friction speed and pressure are factors influencing nano friction power generation, wherein the optimal pressure exists for any relative friction speed so that the device generates optimal power.
Three piezoelectric displacement actuators 1.1 are fixed on the rotor frame according to a circumferential array mode. The power generation unit is connected with the rectifier and the peripheral circuit in parallel to output electric energy. The piezoelectric displacement actuator is an actuator which amplifies the displacement generated by the preloaded low-voltage piezoelectric stack ceramics through a mechanical amplification structure and outputs the amplified displacement vertically. The structure is oval mechanical housing, and the material is steel generally, and interior material is piezo-electric stack pottery, produces deformation displacement along long limit direction.
The main and auxiliary power generation electrodes of the nanometer power generator are rubbed to perform up-and-down reciprocating friction motion under the action of wave force to form potential difference to continuously output electric energy. And the pressure can be generated on the rotor made of the elastic silica gel material by changing the voltage at the two ends of the rotor in real time, so that the rotor unit of the rack is deformed, and the pressure between the main friction unit and the auxiliary friction unit is increased.
As shown in fig. 10, the number of the friction nano-generator wave energy collecting devices can be multiple, the specific distribution can be dot-matrix distribution, and the multiple power generation devices are connected in parallel with an external circuit through a connecting rectifier bridge, so that the output electric power of the wave energy collecting device can be increased, and the wave energy collecting device has working stability and durability, and further has wide application and good application prospect.
Claims (8)
1. The utility model provides a high efficiency piezoelectric control type nanometer friction wave energy power generation facility which characterized in that: the device mainly comprises a main generating electrode component and an auxiliary generating electrode component which are in a circular ring embedded type, wherein the main generating electrode component and the auxiliary generating electrode component are respectively fixed with a nano friction material;
the main power generation pole component is a stator (1), the stator (1) comprises a stator frame (1.2) and a piezoelectric displacement actuator (1.1), the stator frame (1.2) is of a cylinder structure with an opening at one end to form a cavity, the opening comprises a central cavity with an inner ring cavity and an outer ring cavity positioned in the center of the two ring cavities, the inner wall surface of the outer circumference of each ring cavity is uniformly provided with a friction nanometer power generator main power generation electrode (1.3), the friction nanometer power generator main power generation electrode (1.3) is formed by three layers of a power generation pole substrate (1.31), a first electrode layer (1.32) and a friction layer film (1.33) which are sequentially stacked from the wall surface to the center, and the piezoelectric displacement actuator (1.1) is radially arranged in the central cavity;
the auxiliary generating electrode component is a rotor (2), the rotor (2) comprises a rotor frame (2.1), the rotor frame (2.1) is of a cylinder structure with one end open, the opening comprises a central cavity with a circle of annular cavity positioned in the center of the circle of annular cavity, the friction nanometer generator auxiliary generating electrode (2.2) is arranged on the circumferential outer wall of the whole cylinder of the rotor frame (2.1) and the inner circumferential inner wall surface of the annular cavity, and the friction nanometer generator auxiliary generating electrode (2.2) is formed by two layers of a second electrode layer (2.21) and an auxiliary generating electrode substrate (2.22) which are sequentially stacked from the wall surface to the center;
the annular cavity and the outer cavity wall of the central cavity of the rotor frame (2.1) are respectively inserted into the outer ring annular cavity and the inner ring annular cavity of the stator frame (1.2), so that the surfaces of the auxiliary generator electrode (2.2) of the friction nano generator and the main generator electrode (1.3) of the friction nano generator are in close contact, and under the action of wave pairs, the two friction electrodes of the main generator and the auxiliary generator generate electricity through relative friction.
2. The high-efficiency piezoelectric control type nanometer friction wave power generation device according to claim 1, characterized in that: the main generating electrode component and the auxiliary generating electrode component are arranged in a closed shell, and the shell is arranged below the sea water surface.
3. The high-efficiency piezoelectric control type nanometer friction wave power generation device according to claim 1, characterized in that: a friction nanometer generator main generating electrode (1.3) and a friction nanometer generator auxiliary generating electrode (2.2) which are in relative contact are used as two ends of a generating unit, electric energy is output to realize power generation after passing through a rectifier bridge, and the friction nanometer generator main generating electrode and the friction nanometer generator auxiliary generating electrode can be connected to two ends of a capacitor to store energy and generate power.
4. The high-efficiency piezoelectric control type nanometer friction wave power generation device according to claim 1, characterized in that: two friction nanometer generator main generating electrodes (1.3) of the main generating electrode component are connected in series or respectively and independently led out to be connected to a power transmission circuit; two friction nanometer generator secondary generating electrodes (2.2) of the secondary generating electrode component are connected in series or are respectively and independently led out to be connected to a power transmission circuit.
5. The high-efficiency piezoelectric control type nanometer friction wave power generation device according to claim 1, characterized in that: the stator structure is characterized in that three piezoelectric displacement actuators (1.1) are arranged in a central cavity of the stator frame (1.2), the three piezoelectric displacement actuators (1.1) are respectively arranged at different axial positions of the central cavity, and each piezoelectric displacement actuator (1.1) is connected between cavity walls along the diameter direction of the central cavity.
6. The high-efficiency piezoelectric control type nanometer friction wave power generation device according to claim 1, characterized in that: the piezoelectric displacement actuator (1.1) is externally connected with a voltage source, and the voltage applied to two ends of the piezoelectric displacement actuator (1.1) is changed by the voltage source according to different sea surface wave conditions, so that the contact between the main friction electrode and the auxiliary friction electrode has the optimal pressure value under different sea surface wave conditions, and the maximum power generation efficiency of the device is realized.
7. The high-efficiency piezoelectric control type nanometer friction wave power generation device according to claim 1, characterized in that: stator frame (1.2) adopt ya keli material to make, active cell frame (2.1) all adopt elastic silica gel material to make.
8. The high-efficiency piezoelectric control type nanometer friction wave power generation device according to claim 1, characterized in that: the stator frame (1.2) and the rotor frame (2.1) are both cylinders.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112928944A (en) * | 2021-01-25 | 2021-06-08 | 江苏大学 | High-performance wave energy power generation device based on friction nano generator |
| CN113098319A (en) * | 2021-04-23 | 2021-07-09 | 河南大学 | Acoustic energy collector based on embroidery structure |
| CN114483427A (en) * | 2022-01-28 | 2022-05-13 | 武汉理工大学 | Mechanical energy conversion device based on friction nanometer power generation technology |
| CN114738173A (en) * | 2022-04-06 | 2022-07-12 | 大连海事大学 | Wave energy collecting device based on friction nanometer generator |
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