CN110323961B - Magnetic coupling resonant wireless energy transmission and collection system of friction nano generator - Google Patents
Magnetic coupling resonant wireless energy transmission and collection system of friction nano generator Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- H02J7/025—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
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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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
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Abstract
The invention discloses a magnetic coupling resonant wireless energy transmission and collection system of a friction nano generator. If the magnetic coupling resonant wireless energy transmission technology can be applied to wireless transmission of TENG energy, the technology is a great technical breakthrough. The magnetic coupling resonance type power supply device consists of a friction nanometer generator, a linked switch, a magnetic coupling resonance type transmitting module, a magnetic coupling resonance type receiving module and an energy storage module, and mechanical energy of the surrounding environment is collected and converted into electric energy to supply power to equipment under the condition that an external active energy management circuit and a battery are not needed; the trouble that the wires are mutually wound can be avoided through a wireless electric energy transmission method, and the loss caused by mechanical abrasion and the like can be avoided when the wires are connected and separated; the magnetic coupling resonance wireless energy transmission mode can greatly increase the energy transmission efficiency; the battery replacement device can be applied to special occasions, such as electronic equipment poured and formed in concrete, artificial organs implanted into a human body and the like, and the trouble of battery replacement is avoided.
Description
Technical Field
The invention belongs to the technical field of friction nano generator energy collection, and particularly relates to a magnetic coupling resonance type wireless energy transmission and collection system taking a friction nano generator as an energy source.
Background
With the development of intelligent electronic devices, such as intelligent portable wearable devices, wireless sensor networks, and the like, renewable and sustainable power resources (which can be used to build battery-less systems) are becoming increasingly important. Since the power consumption of these electronic systems is in the order of hundreds of milliwatts to tens of milliwatts, these electronic systems can be powered by collecting the mechanical energy of the surrounding environment. Microgenerators based on piezoelectric, electromagnetic and pyroelectric effects have been widely studied and applied. The friction nano generator based on the principles of electrostatic induction and contact electrification is a new green energy technology. Triboelectric nanogenerators not only provide a viable means of supplying power to portable and wearable electronics, but also demonstrate a potential avenue for large-scale power generation. Due to the abundant availability, the method is an ideal energy collection method.
The concept of nanogenerators was first proposed in 2006 and was referred to as "piezoelectric nanogenerators" (PENG). Subsequently, a new energy collection method based on the triboelectric effect was proposed. This new technology is called "triboelectric nanogenerator (TENG)". Similar to PENG, new energy harvesting technology has attracted many researchers to take advantage of it as a powerful technology. Triboelectric nano-generators (TENG), invented by wangchin et al in 2012, that can convert useful mechanical energy, such as vibration, have been used in many different applications and have prompted researchers to use them to power mobile devices and wearable electronic devices.
Wireless Power Transmission (WPT) is a technology for energy transfer by means of electromagnetic fields or waves. According to the distance of transmission, the electromagnetic coupling wireless energy transmission, the electromagnetic resonance energy transmission and the electromagnetic wave wireless energy transmission can be divided. The electromagnetic coupling energy transmission is mainly applied to occasions with short distances and has high energy transmission efficiency, and the wireless energy transmission system based on electromagnetic waves has long transmission distance but cannot realize high-power transmission. Magnetic coupling resonant wireless energy transfer is a compromise choice. The magnetic coupling resonance type wireless energy transmission (MCR-WPT) technology can realize the transmission of wireless energy with medium distance with higher transmission efficiency, and has longer transmission distance compared with the magnetic induction coupling type wireless energy transmission and larger transmission power compared with the electromagnetic wave energy transmission. The scientists at MIT in 2007 have a breakthrough progress on the principle of wireless power transmission, they realize wireless power transmission at a medium distance by using the electromagnetic coupling resonance principle, light a 60W bulb within more than 2m distance, and the transmission efficiency reaches about 40%, and this method is called as the WiTricity technology. Compared with other technologies, the technology has the following advantages: (1) the energy can be transmitted directionally, and received only when the resonant coil is present. This technique is safe for the human body, since the natural resonant frequency of biological tissue is generally very low, having little effect on the transmission of energy. (2) The wireless energy transmission at medium distance can be carried out, and the transmission efficiency of the traditional method is sharply reduced once the transmission distance is increased. (3) The energy transmission device has strong adaptability, is not influenced by intermediate obstacles in the process of energy transmission, and can still effectively transmit energy at places where the sight cannot reach.
TENG has had significant results in the fields of energy storage, sensing, and triboelectric materials, but relatively few studies have been made in the field of wireless power. The wireless power supply does not need to be connected by a wire, and only needs to be carried out by placing the equipment near the charging module. In the case of a plurality of power consuming devices, a plurality of charging modules can be omitted, and the trouble that a plurality of wires are intertwined with each other can be avoided. There is no loss due to mechanical abrasion or the like at the time of connection and disconnection. More importantly, the wireless power supply system can supply power to equipment in complex environments, such as electronic equipment poured in concrete, artificial organs implanted in human bodies, and wireless charging is the best power supply mode. The magnetic coupling resonance type wireless energy transmission system is powered by a standard sine wave voltage source. The output voltage of the TENG is a series of positive and negative alternating pulse signals, and if the magnetic coupling resonant wireless energy transmission technology can be applied to wireless transmission of TENG energy, the technology is a great technical breakthrough.
Disclosure of Invention
The invention aims to provide a magnetic coupling resonant wireless energy transmission and collection system of a friction nano generator aiming at the defects of the prior art.
The magnetic coupling resonance type power generation device consists of a friction nanometer power generator, a linked switch, a magnetic coupling resonance type transmitting module, a magnetic coupling resonance type receiving module and an energy storage module; the friction nano-generator comprises a substrate, a triboelectric plate and a conductive electrode; the linkage switch is switched on when the two triboelectric plates are at the minimum and maximum positions of the distance, and is switched off when the two triboelectric plates are at other positions; one end of the ganged switch is electrically connected with the corresponding conductive electrode of the end, and the other end of the ganged switch and the other conductive electrode are respectively used as a voltage signal output end of the friction nano-generator; two voltage signal output ends of the friction nano generator are respectively connected with two input ends of the magnetic coupling resonant emission module; the energy storage module comprises a rectifying circuit and an energy storage circuit; two output ends of the magnetic coupling resonant receiving module are respectively connected with two input ends of the rectifying circuit; two output ends of the rectifying circuit are respectively connected with two input ends of the storage circuit.
Furthermore, the magnetic coupling resonant transmitting module and the magnetic coupling resonant receiving module have the same resonant frequency.
Further, the structure using the frictional nanogenerator is one of a separation-contact type, a sliding mode, a single-electrode mode, or a free-standing mode.
Further, the number of the friction nanometer generators is one or more; when the number of the friction nanometer generators is multiple, the friction nanometer generators are connected in series or in parallel to form a friction nanometer generator set, and two voltage signal output ends of the friction nanometer generator set are respectively connected with two input ends of the magnetic coupling resonant emission module; one or more magnetic coupling resonant receiving modules; when the number of the receiving modules is multiple, the magnetic coupling resonant receiving modules form a magnetic coupling resonant receiving module group, and two output ends of the magnetic coupling resonant receiving module group are respectively connected with two input ends of the rectifying circuit.
Furthermore, the magnetic coupling resonant emission module is composed of a capacitor C1And an inductance L1The formed RLC oscillating circuit and the inductor L1Having an internal resistance R1(ii) a The magnetic coupling resonance type receiving module is composed of an inductor L2And a capacitor C2The formed RLC oscillating circuit and the inductor L2Having an internal resistance R2(ii) a Capacitor C1And a capacitor C2The capacitance values of (A) are all 0.1fF to 1000F; inductor L1And an inductance L2The inductance is 0.1 muH to 1000H, and the inductance L1And the diameter of the inductor L2 is 1mm-1000mm, the turn ratio of the inductor L1 to the inductor L2 is 0.01-1000, and the inductor L1 and the inductor L2 are both inductors with or without magnetic cores.
Further, the capacitor C1Capacitance value and inductance L of1Inductance product of (A) and (B) a capacitor (C)2Capacitance value and inductance L of2Are equal in inductance product。
Further, a capacitor C in the magnetic coupling resonant emission module1And an inductance L1Are connected in parallel or in series; capacitor C in magnetic coupling resonant receiving module2And an inductance L2In parallel or in series.
Furthermore, the rectifier circuit is a rectifier bridge formed by four diodes or a rectifier bridge formed by two diodes, and the storage circuit is a storage capacitor C3Or a battery; two output ends of the magnetic coupling resonant receiving module are respectively connected with two input ends of the rectifier bridge; when the storage circuit is a storage capacitor C3Two output ends of the rectifier bridge and the storage capacitor C3Are respectively connected with the two ends of the connecting rod; when the storage circuit is a battery, the two output ends of the rectifier bridge are respectively connected with the two ends of the battery.
The invention has the following beneficial effects:
the wireless power transmission system can collect mechanical energy of the surrounding environment and convert the mechanical energy into alternating current signals with certain frequency without an external active energy management circuit and a battery, can directly supply power to required equipment by a wireless power transmission method, and avoids the trouble of winding wires; the resonance frequency of the receiving circuit is adjusted to be consistent with the resonance frequency of the transmitting module, and at the moment, the energy transmitting and receiving system works in a magnetic coupling resonance state, so that the wireless energy transmission efficiency can be improved; the battery replacement device can be applied to special occasions, such as electronic equipment poured and formed in concrete, artificial organs implanted into a human body and the like, and the trouble of battery replacement is avoided. The invention can greatly improve the energy output efficiency of the friction nano generator by introducing the linked switch, and if the linked switch is not arranged, the friction nano generator only has a small amount of energy coupled to the LC oscillating circuit. In addition, the double-linkage switch is used, so that when the output voltage of the generator reaches the maximum forward or maximum reverse direction, the switches are all conducted, namely, the external instantaneous power supply is realized, and thus, an emission module formed by the LC oscillating circuit can generate two oscillating signals in one motion period of the friction generator, and the energy of the friction nano generator in the whole motion process is collected.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a TENG with a linked switch according to an embodiment of the present invention;
fig. 3(a), fig. 3(b), fig. 3(c), fig. 3(d) and fig. 3(e) are flowcharts illustrating the operation of the TENG with the linked switch in the resonant transmission module with magnetic coupling during one operation cycle according to the embodiment of the present invention;
FIG. 4 is a graph of the voltage output waveform of a TENG with a ganged switch at an operating frequency of 4 Hz;
fig. 5 is a waveform diagram of an oscillation signal generated by the magnetic coupling resonant transmitting module according to the embodiment of the present invention;
fig. 6 is a waveform diagram of a signal received by the magnetic coupling resonant receiving module according to the embodiment of the present invention;
FIG. 7 is a graph illustrating a charging voltage variation of a storage capacitor of an energy storage module in an embodiment of the present invention;
in the figure: 1. the device comprises a friction nanometer generator, 2, a magnetic coupling resonant type transmitting module, 3, a magnetic coupling resonant type receiving module, 4 and an energy storage module; 5. the device comprises a substrate, 6, a triboelectric plate, 7, a conductive electrode, 8, a linkage switch, 9 and a return spring.
Detailed Description
In order to describe the present invention more specifically, the following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings.
As shown in fig. 1, the magnetic coupling resonant wireless energy transmission and collection system of the friction nano generator includes a friction nano generator 1, a linked switch, a magnetic coupling resonant transmitting module (a circuit for generating an alternating oscillation signal) 2, a magnetic coupling resonant receiving module 3 and an energy storage module 4. The magnetic coupling resonant emission module 2 is composed of a capacitor C1And an inductance L1(inductor L)1Having an internal resistance R1) The formed RLC resonant circuit; the magnetic coupling resonance type receiving module 3 is composed of a capacitor C2And an inductance L2(inductor L)2Having an internal resistance R2) The formed RLC resonant circuit. Capacitor C in magnetic coupling resonant emission module1And an inductance L1Parallel or series connection, magnetic coupling resonant typeCapacitor C in receiving module2And an inductance L2The capacitors and the inductors in the magnetic coupling resonant transmitting module and the magnetic coupling resonant receiving module can be connected in parallel or in series, so that the capacitors and the inductors in the magnetic coupling resonant transmitting module and the magnetic coupling resonant receiving module can be in various combination forms of parallel-series connection, series-parallel connection, parallel-parallel connection or series-series connection. Taking the combination of parallel connection and series connection as an example, namely the capacitor C of the magnetic coupling resonant type emission module1And an inductance L1Inductance L of parallel magnetic coupling resonant receiving module 32One terminal and a capacitor C2One end is connected in series: two voltage signal output ends of the friction nano generator 1 and a capacitor C1Two ends are respectively connected; inductor L2Is connected to one input of the energy storage module 4, a capacitor C2And the other end of which is connected to the other input of the energy storage module 4.
The magnetic coupling resonant wireless energy transmission and collection system of the friction nano generator has the following working principle: under the control of the ganged switch, TENG outputs a series of positive and negative alternating pulse voltages. The magnetic coupling resonant type transmitting module formed by the RLC resonant circuit generates an attenuated oscillating signal under the excitation of the pulse voltage. Inductor L2Receiving inductance L in a resonant coupling manner1The same frequency of the attenuated oscillation signal is generated in the loop of the magnetic coupling resonant receiving module 3. Energy carried by an oscillation signal in a loop of the magnetic coupling resonance type receiving module 3 is stored in a storage capacitor after passing through a rectifying circuit in the energy storage module 4. Regulating capacitance C1、C2And an inductance L1、L2Two RLC resonant circuits in the magnetic coupling resonant transmitting module and the magnetic coupling resonant receiving module have the same resonant frequency, and the wireless energy transmission efficiency can be obviously improved.
As shown in fig. 2, the friction nano-generator 1 comprises a substrate 5, a triboelectric plate 6, a conductive electrode 7, a ganged switch 8 and a return spring 9; the two substrates 5 are oppositely arranged, a conductive electrode 7 is fixed on each inner side surface of each substrate 5, and the inner side surfaces of the two substrates 5 are connected through two return springs 9 which are arranged at intervals; a triboelectric plate 6 is fixed on the opposite surface of each of the two conductive electrodes 7; one of the two triboelectric plates 6 is made of positive triboelectric material (such as PA6), and the other is made of negative triboelectric material (such as PDMS); two ends of the ganged switch 8 are respectively fixed with the inner side surfaces of the two substrates 5, and one end of the ganged switch is electrically connected with the conductive electrode 7 corresponding to the end; the other end of the ganged switch 8 and the other conducting electrode 7 are respectively used as a voltage signal output end and are connected with two input ends of the magnetic coupling resonant emission module 2; the purpose of the ganged switch is to ensure that the TENG supplies power to the load only when the two triboelectric plates are in contact with each other and separated to the maximum distance. In the process of moving the two triboelectric plates of TENG, the two conductive electrodes are in a non-contact state, so that charge transfer cannot occur between the two conductive electrodes. In fact, the load circuit is a magnetic coupling resonant type transmitting module formed by an RLC resonant circuit, if the load is directly connected with the TENG, the TENG is always in a short-circuit state due to the low-frequency characteristic of the inductor, no electric signal is output, and the linkage switch well solves the problem. Fig. 3(a), 3(b), 3(c), 3(d), and 3(e) are flowcharts illustrating the operation of the magnetic coupling resonant transmission module 2 generating an oscillation signal after the friction nano-generator 1 with the linked switch is connected to the magnetic coupling resonant transmission module 2. When the two triboelectric plates 6 of TENG are contacted with each other, the linked switch is closed; at this time, frictional charges are generated on the surfaces of the two triboelectric plates, as shown in fig. 3 (a). When the two conductive electrodes start to be separated, the linked switch is turned on; during the separation of the two conducting electrodes, there is no charge transfer between the two conducting electrodes of the TENG, as shown in fig. 3 (b). When the two conductive electrodes are separated to the maximum position, the switch is closed in a linkage manner; under the action of the frictional charge, TENG outputs a pulse voltage, positive charges on a conductive electrode fixed with a frictional electrode plate with positive charges flow onto the other conductive electrode through a magnetic coupling resonant emission module, and the positive charges and the negative charges are respectively stored on the two conductive electrodes; the magnetic coupling resonant type transmitting module formed by the RLC resonant circuit generates a decaying oscillating signal under the excitation of the pulse voltage, as shown in fig. 3 (c). When the two conductive electrodes are close to each other from the maximum distance, the linked switch is turned on; during the approach of the two conducting electrodes, there is no charge transfer between the two conducting electrodes of the TENG, as shown in fig. 3 (d). When the polar plates are contacted with each other and return to the initial position, the linked switch is closed; under the action of the stored charges in the conductive electrode, the positive charges on the conductive electrode with the positive charges flow onto the other conductive electrode through the magnetic coupling resonant emission module, and TENG outputs another pulse voltage; the magnetic coupling resonant type transmitting module formed by the RLC resonant circuit generates another attenuated oscillating signal under the excitation of the pulse voltage, as shown in fig. 3 (e); after the pulse voltage is output, the two conductive electrodes are not electrified. The cycle shown in fig. 3(b), fig. 3(c), fig. 3(d) and fig. 3(e) is repeated in sequence after the two triboelectric plates of TENG, and two oscillation signals are generated every cycle period. It should be noted that the TENG does not generate an oscillation signal when it is first contacted, which corresponds to the operation state shown in fig. 3 (a).
The output signal (pulse voltage) of TENG under the control of the ganged switch is shown in fig. 4, and one forward pulse and one reverse pulse are one duty cycle of TENG. The magnetic coupling resonant transmitting module and the magnetic coupling resonant receiving module are in a parallel-series combination form. When TENG generates a forward pulse in fig. 4, the corresponding attenuated oscillation signal generated by the magnetic coupling resonant transmission module is shown in fig. 5, where the oscillation frequency and the attenuation speed are determined by the resistor R1Capacitor C1And an inductance L1And (4) jointly determining. When the magnetic coupling resonant receiving module is close to the magnetic coupling resonant transmitting module, the magnetic coupling resonant receiving module induces and generates the attenuation oscillation signal with the same frequency in a loop. Regulating capacitance C1And C2When two RLC series resonance circuits in the magnetic coupling resonance type transmitting module and the magnetic coupling resonance type receiving module have the same resonance frequency, the inductance L2The voltage U over time t is shown in fig. 6. Two output ends of the magnetic coupling resonant receiving module 3 are connected with two input ends of a rectifier bridge in the energy storage module 4, and when the capacitor C of the magnetic coupling resonant receiving module 32And an inductance L2When connected in parallel, the capacitor C2As the two output ends of the magnetic coupling resonant receiving module 3, respectively, when the capacitance C of the magnetic coupling resonant receiving module 3 is reached2One terminal and an inductor L2One end is connected in seriesTime, capacitance C2The other end of the magnetic coupling resonant receiving module 3 is used as an output end of the magnetic coupling resonant receiving module 3, and an inductor L2And the other end of the magnetic coupling resonant mode receiving module 3 is used as the other output end of the magnetic coupling resonant mode receiving module. The energy storage module comprises a rectifier bridge consisting of four diodes and a storage capacitor C3(ii) a Two output ends of the rectifier bridge and the storage capacitor C3Two ends are respectively connected; storage capacitor C3One end is grounded; energy carried by the oscillation signal received by the magnetic coupling resonance type receiving module passes through the rectifier bridge and then is supplied to the storage capacitor C3And (6) charging.
Two triboelectric plates of TENG are enabled to work under the contact frequency of 4Hz, and a capacitor C is stored3The charging voltage variation curve of (1) is shown in FIG. 7, C in this example3Was 10 pf. C3The stored power may power some mobile devices.
The magnetic coupling resonant wireless energy transmission and collection system of the friction nano generator provided by the invention is introduced. The invention is further elucidated with reference to the accompanying drawings. The above description of the embodiments is only intended to facilitate the understanding of the method of the invention and its core idea. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (7)
1. Friction nanometer generator magnetic coupling resonant mode wireless energy transmission and collection system, its characterized in that: the magnetic coupling resonance type energy storage device consists of a friction nano generator, a linked switch, a magnetic coupling resonance type transmitting module, a magnetic coupling resonance type receiving module and an energy storage module; the friction nano-generator comprises a substrate, a triboelectric plate and a conductive electrode; the linkage switch is switched on when the two triboelectric plates are at the minimum and maximum positions of the distance, and is switched off when the two triboelectric plates are at other positions; one end of the ganged switch is electrically connected with the corresponding conductive electrode of the end, and the other end of the ganged switch and the other conductive electrode are respectively used as a voltage signal output end of the friction nano-generator; friction nanometer hairTwo voltage signal output ends of the motor are respectively connected with two input ends of the magnetic coupling resonant emission module; the magnetic coupling resonant transmitting module and the magnetic coupling resonant receiving module have the same resonant frequency; the magnetic coupling resonant emission module is composed of a capacitor C1And an inductance L1The formed RLC oscillating circuit and the inductor L1Having an internal resistance R1(ii) a The magnetic coupling resonance type receiving module is composed of an inductor L2And a capacitor C2The formed RLC oscillating circuit and the inductor L2Having an internal resistance R2(ii) a A magnetic coupling resonant type transmitting module consisting of an RLC oscillating circuit generates attenuated oscillating signals under the excitation of pulse voltage generated by a friction nano generator; inductor L2Receiving inductance L in a resonant coupling manner1The energy of the oscillator generates an attenuation oscillation signal with the same frequency in a magnetic coupling resonant receiving module loop; the energy storage module comprises a rectifying circuit and an energy storage circuit; two output ends of the magnetic coupling resonant receiving module are respectively connected with two input ends of the rectifying circuit; two output ends of the rectifying circuit are respectively connected with two input ends of the storage circuit.
2. The friction nanogenerator magnetic coupling resonant wireless energy transmission and collection system of claim 1, wherein: the structure using the frictional nanogenerator is one of a separation-contact type, a sliding mode, a single-electrode mode, or a free-standing mode.
3. The friction nanogenerator magnetic coupling resonant wireless energy transmission and collection system of claim 1, wherein: one or more friction nano generators; when the number of the friction nanometer generators is multiple, the friction nanometer generators are connected in series or in parallel to form a friction nanometer generator set, and two voltage signal output ends of the friction nanometer generator set are respectively connected with two input ends of the magnetic coupling resonant emission module; one or more magnetic coupling resonant receiving modules; when the number of the receiving modules is multiple, the magnetic coupling resonant receiving modules form a magnetic coupling resonant receiving module group, and two output ends of the magnetic coupling resonant receiving module group are respectively connected with two input ends of the rectifying circuit.
4. The friction nanogenerator magnetic coupling resonant wireless energy transmission and collection system of claim 1, wherein: capacitor C1And a capacitor C2The capacitance values of (A) are all 0.1fF to 1000F; inductor L1And an inductance L2The inductance is 0.1 muH to 1000H, and the inductance L1And the diameter of the inductor L2 is 1mm-1000mm, and the inductor L1And an inductance L2The turns ratio of (2) is 0.01-1000, and the inductance L1And an inductance L2Both with and without a magnetic core.
5. The friction nanogenerator magnetic coupling resonant wireless energy transmission and collection system of claim 4, wherein: the capacitor C1Capacitance value and inductance L of1Inductance product of (A) and (B) a capacitor (C)2Capacitance value and inductance L of2The inductance product of (a) is equal.
6. The friction nanogenerator magnetic coupling resonant wireless energy transmission and collection system of claim 4, wherein: capacitor C in magnetic coupling resonant emission module1And an inductance L1Are connected in parallel or in series; capacitor C in magnetic coupling resonant receiving module2And an inductance L2In parallel or in series.
7. The friction nanogenerator magnetic coupling resonant wireless energy transmission and collection system of claim 1, wherein: the rectifier circuit is a rectifier bridge composed of four diodes or a rectifier bridge composed of two diodes, and the storage circuit is a storage capacitor C3Or a battery; two output ends of the magnetic coupling resonant receiving module are respectively connected with two input ends of the rectifier bridge; when the storage circuit is a storage capacitor C3Two output ends of the rectifier bridge and the storage capacitor C3Are respectively connected with the two ends of the connecting rod; when the storage circuit is a battery, the storage circuit is integratedTwo output ends of the current bridge are respectively connected with two ends of the battery.
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|---|---|---|---|---|
| US9768643B2 (en) * | 2012-11-02 | 2017-09-19 | Panasonic Intellectual Property Management Co., Ltd. | Wireless power transmission system capable of continuing power transmission while suppressing heatup of foreign objects |
| CN103780132B (en) * | 2013-07-18 | 2016-02-03 | 北京纳米能源与***研究所 | A kind of pulse friction generator and triboelectricity method |
| CN104638774B (en) * | 2014-08-13 | 2017-01-25 | 武汉泰可电气股份有限公司 | Magnetic-coupling resonant wireless power transmission system and method |
| CN106602684B (en) * | 2016-03-01 | 2019-06-25 | 北京纳米能源与***研究所 | The energy storage method and energy storage system of friction nanometer power generator |
| CN106877515A (en) * | 2017-03-22 | 2017-06-20 | 北京大学 | The EMS suitable for friction generator based on LC vibrations |
| KR20190058187A (en) * | 2017-11-21 | 2019-05-29 | 제주대학교 산학협력단 | Pouch type triboelectric nanogenerator and manufacturing method of the same |
| CN107749671A (en) * | 2017-11-28 | 2018-03-02 | 重庆大学 | Wireless charging device based on friction nanometer power generator |
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2019
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