CN105680716A - Rotary-type compound nanometer power generator - Google Patents

Rotary-type compound nanometer power generator Download PDF

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Publication number
CN105680716A
CN105680716A CN201410678022.3A CN201410678022A CN105680716A CN 105680716 A CN105680716 A CN 105680716A CN 201410678022 A CN201410678022 A CN 201410678022A CN 105680716 A CN105680716 A CN 105680716A
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CN
China
Prior art keywords
friction
electrode
stator
electrode unit
generator
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CN201410678022.3A
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Chinese (zh)
Inventor
杨亚
钟贤岱
王中林
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北京纳米能源与系统研究所
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Priority to CN201410678022.3A priority Critical patent/CN105680716A/en
Publication of CN105680716A publication Critical patent/CN105680716A/en

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Abstract

The invention provides a rotary-type compound nanometer power generator. The rotary-type compound nanometer power generator comprises a friction nanometer power generation assembly and a magnetic-electric sensing power generation assembly, wherein the friction nanometer power generation assembly comprises a rotor and a stator which are provided with a command rotation shaft, a friction layer is arranged on the lower surface of the rotor and is formed by outwards and radially arranging a plurality of friction units taking the rotation shaft as a circle center, an electrode layer of the stator comprises a first electrode and a second electrode which are formed by outwards and radially arranging a plurality of first electrode units and a plurality of second electrode units at intervals in the same plane from the rotation shaft, electron gain-loss capability difference exists between the friction units and the upper surface material of the stator, a magnet part and a coil part of the magnetic-electric sensing power generation assembly are separately arranged on the rotor and the stator, and under the effect of an external force, induction potential difference is generated between the two electrodes, and meanwhile, induction current is generated in the coil part. The power generator provided by the invention can acquire current output with milliamperes and can be used for directly supplying power to a small-sized power utilization device.

Description

A kind of rotary composite nano generator
Technical field
The present invention relates to this technical field of power generation, in particular to rotary composite nano generator frictional influence and magnetoelectric effect being coupled to form.
Background technology
The traditional fossil oil (coal, oil and natural gas etc.) limited along with reserves consumes totally day by day, and energy problem had become the yoke of restriction human social development already. Domestic and international researchist invests renewable novel energy sight one after another, and wherein, the nano generator proposed for solution micro-nano device and system energy supply becomes day by day as leading the leading of micro-nano rice energy development.
Nano generator based on piezoelectric effect, thermoelectric effect, frictional influence, magnetoelectric effect has more report. Chinese patent " a kind of nano generator system " (CN201320792713), Chinese patent " revolving frictional generator, voltage-stabilizing output circuit and power supply device " (CN201410069272), Chinese patent " a kind of revolving frictional generator Chinese patent exporting constant current " (CN201310507488), Chinese patent " rotary static generator " (CN201310201386) etc. proposes based on frictional influence power generation assembly. But the energy conversion efficiency of single form is not high so that it is practical application is restricted.
How improving the core that energy conversion efficiency has become micro-nano energy research to greatest extent, composite nano generator arises at the historic moment for this reason. Composite nano generator is integrated with the advantage of different-energy acquisition mode, serve certain complementary enhancement, it is to increase energy conversion efficiency. Chinese patent " piezoelectricity and triboelectricity mixing nano generator " (CN201210185780.2), Chinese patent " preparation method of high electric property nano generator based on piezoelectricity-frictional influence " (CN201310376298.1), Chinese patent " a kind of combined type nano generator and its preparation method " (CN201210455410.6) although have employed the coupling of multiple effect, but device is all only limitted to the conversion of low frequency mechanical energy, and conversion energy is lower. Chinese patent " a kind of composite nano generator based on piezoelectricity friction magnetic electricity " (CN201310099750.4), owing to adopting radial magnetic field generator to make volume relatively big, is unfavorable for that miniatureization is integrated in micro-nano system.At present, based on the rotary composite nano generator of frictional influence and magnetoelectric effect coupling, there is not been reported.
Summary of the invention
In order to solve existing multiple kinds of energy, to utilize technology to there is efficiency not high, it is unfavorable for that miniatureization is integrated in the problem of micro-nano system, in the present invention by the design radial, that array, plane two electrodes rub nanometer generating assembly and axial magnetic electricity electrification component that is coupled, it is provided that a kind of efficient conversioning mechanical energy is the device that stable direct current exports, can power directly to small-sized electricity consumption device.
Rotary composite nano generator provided by the invention, comprising:
Friction nanometer generating assembly, comprises the rotor and stator with common rotating shaft, and wherein, the lower surface of described rotor is provided with friction layer, and described friction layer is arranged as the center of circle to external irradiation taking described rotating shaft by some friction elements; Described stator comprises electrode layer, described electrode layer is spaced some first electrode units and some 2nd electrode unit in same plane, and described first electrode unit and the 2nd electrode unit all arrange to external irradiation taking the rotating shaft of stator as the center of circle, all first electrode units are connected in series and form the first electrode, and all 2nd electrode units are connected in series and form the 2nd electrode; There is receiving and losing electrons capacity variance in the top surface of described friction element and described stator; Under external force, described rotor and stator are that axle rotates mutually taking rotating shaft, make the friction element of friction layer and the upper surface slide friction of stator, friction layer surface with friction net charge move with it, make two described interelectrode induction potential differences;
Magneto-electric induction electrification component, comprising: magnet component and coil component, is separately positioned on described rotor and stator.
Preferably, the material of described friction element is isolator, and the upper surface of described stator is described electrode layer.
Preferably, described stator also comprises sealing coat, and described electrode layer is arranged on the lower surface of described sealing coat, and the upper surface of described sealing coat is the upper surface of described stator; Described sealing coat is insulating material.
Preferably, the material of described friction element is isolator, conductor or semiconductor material.
Preferably, the superposition of one or more that described insulating material is selected from methylsiloxane, polyimide, polyethylene, polypropylene, polyisobutene, polyvinyl chloride, tetrafluoroethylene, polystyrene, polyvinyl alcohol, polychloroether, polyester, urethane, polyvinyl butyral acetal, polyacrylonitrile, poly-biphenol carbonic ether.
Preferably, friction element can not cover the first adjacent electrode unit or the 2nd electrode unit simultaneously.
Preferably, in described friction layer, distance between adjacent two described friction elements is equal.
Preferably, in described electrode layer, the first electrode that some individual described first electrode units are formed with the 2nd electrode unit is identical or complementary with the size and dimension of the 2nd electrode.
Preferably, described first electrode unit and the 2nd electrode unit be sector or summit cut by concentric(al) circles after the part sector structure that formed.
Preferably, described first electrode unit is identical with the 2nd electrode unit drift angle separately.
Preferably, described friction element is that the part formed after the sector identical with the first electrode unit drift angle or summit are cut by concentric(al) circles is fan-shaped; Described friction element, the first electrode unit are substantially identical with the size of the 2nd electrode unit.
Preferably, the separation distance between the first adjacent electrode unit and the 2nd electrode unit is 10nm-1cm.
Preferably, the ratio of the minimum arc length of described sector or part sector and the thickness of electrode unit is 0.01 to 1000.
Preferably, described coil component is fixed on described stator lower surface; Described magnet component is fixed on described upper rotor surface.
Preferably, described coil is for being single-phase, Concentrical winding planar toroidal coil; Described magnet is neodymium iron boron, aluminium nickel cobalt, samarium cobalt, ferrite.
Preferably, the number of turn of described coil is greater than 100 circles.
Preferably, described magnet component comprises m to magnet, m to magnet according to N, S is extremely alternately arranged to be evenly distributed on the same circumference (m >=1) by axle of described rotating shaft, and described coil component comprises 2m coil, and it take rotating shaft as the circumferentially same of axle that 2m coil is evenly distributed on.
Preferably, 2m described toroidal coil is connected in series.
Preferably, described sealing coat is laminate structure, and thickness is 10nm to 1mm.
Preferably, in described friction element and/or stator upper surface, at least one surface comprises micro-nano micro-nano structure, described micro-nano structure is nano wire, nanometer rod, nanotube, nano particle, nanometer channel, micron trenches, nanocone, micron cone, nanometer ball or micron ball-like structure, or the array that said structure is formed.
Compared with prior art, the present invention has following useful effect:
1, the rotary composite nano generator of the present invention, the design of same plane, the electric electrification component of the friction layer plane spin friction that rotates relative to electrode layer and axial magnetic electricity electrification component it is integrated in by two electrodes, make the mechanical movement of rotation, produce friction generating and magnetic electricity generating simultaneously, greatly improve generator energy transformation efficiency and outward current, and adopt rotation structure design to also reduce device volume simultaneously. Two electrode layers of friction nanometer generating assembly are integrated in generation and the transfer efficiency that same plane significantly increases surface charge, and rotor 10 realizes sliding friction with stator 20 by the mode rotated simultaneously, significantly improve the frequency that electric charge exports.
2, the design of the electricity of the disc type axial magnetic in generator electrification component, reduces device volume at raising energy conversion efficiency simultaneously. Whole generator preparation technology is simple, and material is easy to obtain and with low cost, is conducive to utilizing mechanical energy to be changed into application in electric energy.
3, in the generator of the present invention, friction nanometer generating assembly and magnetic electricity electrification component all can obtain the electric current up to milliampere level and export, and is enough to power to much daily compact electric apparatus. Directly as utility power, directly mini electrical equipment can be powered in real time.
Accompanying drawing explanation
By, shown in accompanying drawing, above-mentioned and other object of the present invention, Characteristics and advantages will be more clear. Reference numeral identical in whole accompanying drawing indicates identical part. Deliberately do not put drafting accompanying drawing by the contracting of physical size equal proportion, focus on demonstrating the purport of the present invention. In addition, although herein can providing package containing the demonstration of the parameter of particular value, but parameter is without the need to definitely equaling corresponding value, but can be similar to corresponding value in acceptable error tolerance limit or design constraint. In addition, the direction term mentioned in following examples, such as " on ", D score etc., be only the direction with reference to accompanying drawing. Therefore, it may also be useful to direction term be used to illustrate not be used for restriction the present invention.
Fig. 1 is the structural representation of rotary composite nano generator;
Fig. 2 is the exploded perspective view of rotary composite nano electric generator structure;
Fig. 3 be rotor friction layer in friction element schematic diagram is set:
Fig. 4 be in electrode layer the first electrode unit and the 2nd electrode unit schematic diagram is set;
Fig. 5 is the schematic diagram of coil component coil 302;
Fig. 6 is that magnetic electricity electrification component is with rotation speed change i-v curve figure (m=3);
Fig. 7 be under 1000 revs/min (rpm) after transformation magnetic electricity electrification component i-v curve figure (m=3);
Fig. 8 is for friction nanometer generating assembly is with rotation speed change i-v curve figure (fringe number 12);
Fig. 9 is nanometer generating assembly electric current voltage curve (fringe number 12) that rubs after transformation under 1000 revs/min (rpm).
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described. Obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments. Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Secondly, the present invention is described in detail in conjunction with schematic diagram, and when describing the embodiment of the present invention in detail, for ease of illustrating, described schematic diagram is example, and it should not limit the scope of protection of the invention at this.
The generator typical structure of the present embodiment is see Fig. 1 and Fig. 2, comprise friction nanometer generating assembly and magneto-electric induction electrification component, wherein, described friction nanometer generating assembly comprises: rotor 10, the stator 20 with common rotating shaft P, wherein, the lower surface of rotor 10 is provided with friction layer, and described friction layer is arranged as the center of circle to external irradiation taking turning axle P by some friction elements 101, preferably distance between adjacent two friction elements is equal, see Fig. 3; Stator 20 comprises sealing coat 201 and is arranged on the electrode layer of sealing coat 201 lower surface, described electrode layer is spaced some first electrode units 202 and some 2nd electrode unit 203 in same plane, and the first electrode unit 202 and the 2nd electrode unit 203 all arrange to external irradiation taking the rotating shaft of stator as the center of circle, see Fig. 4, all first electrode units 202 are connected in series and form the first electrode, and all 2nd electrode units 203 are connected in series and form the 2nd electrode; Receiving and losing electrons capacity variance is there is in friction element 101 with the surfacing of sealing coat 201; Under external force F effect, rotor 10 and stator 20 rotate mutually by axle of rotating shaft P, sealing coat 201 and two electrode layers fit tightly, make friction element 101 and the sealing coat 201 upper surface slide friction of friction layer, friction layer surface with friction net charge move with it, causing the induction potential difference generating period between two electrode layers to change, drive electrode layer exports ac signal to external circuit. Magneto-electric induction electrification component comprises: magnet component and coil component, it is separately positioned on rotor 10 and stator 20, wherein, magnet component comprises m to magnet 301, m to magnet 301 according to N, S is extremely alternately arranged is evenly distributed on the same circumference (m >=1) by axle of rotating shaft P, and it is circumferentially same that coil component comprises that 2m coil 302,2m coil 302 be evenly distributed on by axle of rotating shaft P. Under the drive that magnet component and coil component rotate mutually at rotor 10 and stator 20, magnet component and coil component produce relative movement, and coil 302 cuts the magnetic line of force of magnet 301, produces induced current in coil 302.Preferably, in rotor and the mutual rotation process of stator, m is to the position one_to_one corresponding of magnet and 2m coil.
In the present embodiment, magnet component is fixedly installed on rotor 10, and coil component is fixedly installed on stator 20. Concrete, magnet 301 is fixedly installed on rotor 10 upper surface by the m of magnet component, and 2m coil of coil component is fixedly installed on the electrode layer lower surface of stator 20. The number of above-mentioned magnet and coil and set-up mode are optimal way, can also adopt other set-up modes and number in other embodiments.
When rubbing the rotor 10 of nanometer generating assembly or stator 20 applies pressure F, on the one hand, owing to friction element 101 and sealing coat 201 material of friction layer exists receiving and losing electrons capacity variance, according to frictional influence, by electric charges different for the surface aggregation contacted with each other at two, in stator 10 with rotor 20 relative rotational motion, these electric charges all will remain on friction element 101 and the surface of sealing coat 201, and flowing or decay almost can not occur within a certain period of time. Owing to sealing coat 201 keeps static relative to the two of electrode layer electrode units 201 and 202 all the time, therefore sealing coat 201 surface with the induction potential difference that produces between two electrode layers of electric charge remain constant, the generation offer motivating force of electric current can not be provided. Therefore, static charge on friction element 101 will move with its rotation, and alternately near two electrode layers time, repeatedly change the induction potential difference between two electrode layers, thus attract in electrode loop with different electric charge move between two electrode layers (the first electrode unit 202 and the 2nd electrode unit 203), externally export ac signal; The simultaneously magnet component of magneto-electric induction electrification component and coil component relative movement under the drive of two parts that generate electricity, the magnetic flux of magnet 301 in 2m coil 302 is changed by m, coil 302 produces to induct electromotive force, it is possible in external circuit, produce alternating current export.
The rotary composite nano generator of the present invention, the design of same plane (spaced some the first electrode units 202 and the 2nd electrode unit 203), the electric electrification component of the friction layer plane spin friction that rotates relative to electrode layer and axial magnetic electricity electrification component it is integrated in by two electrodes, make the mechanical movement of rotation, produce friction generating and magnetic electricity generating simultaneously, greatly improve generator energy transformation efficiency and outward current, and adopt rotation structure design to also reduce device volume simultaneously. Two electrode layers of friction nanometer generating assembly are integrated in generation and the transfer efficiency that same plane significantly increases surface charge, and rotor 10 realizes sliding friction with stator 20 by the mode rotated simultaneously, significantly improve the frequency that electric charge exports; The design of disc type axial magnetic electricity electrification component reduces device volume at raising energy conversion efficiency simultaneously. Therefore, the generator of the present invention can obtain the electric current up to milliampere level and export, and is enough to power to much daily compact electric apparatus.
The stators and rotators of friction nanometer generating assembly is just in order to title easily, stators and rotators can be all rotate parts in practice, one of them can also be fixed, such as stator is fixed, rotor can rotate around rotating shaft, rotating shaft is connected with the object (providing external force F) of rotation, rotor driven is relatively and stator rotation, make the friction element 101 alternately electrode unit 201 and 202 in two electrode layers of friction layer, make have ac signal to export between two electrodes of friction nanometer generating assembly.
In actually operating, see Fig. 2, it is possible to magnet 301 is fixed on a disk by m and jointly forms magnet assembly, the upper surface of this disk and rotor is fixed; Equally, 2m coil 302 can also be fixed on another disk and jointly form coil component, fixed by the lower surface of this disk and stator.
See Fig. 1, sealing coat 201 can be the insulating material of laminate structure, and thickness is 10nm to 1mm. Accordingly, the first electrode and the 2nd electrode can also be laminate structure.
Friction element in the friction layer that rotor turns makes is alternately near the first electrode unit and the 2nd electrode unit, it is preferable that friction element 101 can not cover the first adjacent electrode unit 202 or the 2nd electrode unit 203 simultaneously. the first electrode that some individual first electrode units 202 are formed with the 2nd electrode unit 203 is preferably identical or complementary with the size and dimension of the 2nd electrode, as shown in Figure 3, first electrode unit and the 2nd electrode unit can be all sector structure, preferred, first electrode unit is identical with the 2nd electrode unit drift angle separately, preferred, friction element is the sector identical with the first electrode unit drift angle, and, friction element, first electrode unit is substantially identical with the 2nd electrode unit radius separately, i.e. friction element, first electrode unit 202 is identical with shape with the 2nd electrode unit 203, size is substantially identical, be independent sector or summit cut by concentric(al) circles after the part sector element that formed. see Fig. 3, the upper surface of the 2nd electrode unit 203 is that the part formed after sector or summit are cut by concentric(al) circles is fan-shaped, first electrode unit 202 is filled between adjacent two the 2nd electrode units in a complementary fashion, the outer edge that the interconnection formation in outside of all first electrode units 202 is closed, the preglabellar field that the interconnection formation in inner side of all 2nd electrode units 203 is closed, or, the preglabellar field that the interconnection formation in inner side of all first electrode units 202 is closed, the outer edge that the interconnection formation in outside of all 2nd electrode units 203 is closed.
First electrode unit 202 and the 2nd electrode unit 203 can adopt arbitrary conductor material, it is preferable to metallic substance, the one that described metallic substance is selected from gold, platinum, copper, aluminium, silver, it is possible to by magnetron sputtering, steam plating and the preparation of printing technology.
Preferably, described metal electrode layer can directly select sheet metal, such as aluminium foil for first electrode 12 and the 2nd electrode 22, it is also possible to by magnetron sputtering, steaming plating and printing technology in the preparation of friction member surface.
The first adjacent electrode unit 202 and the 2nd electrode unit 203 do not connect mutually, between separation distance be 10nm-1cm.
When first electrode unit or the 2nd electrode unit are fan-shaped or part is fan-shaped, in order to avoid marginal effect of electric field, the ratio of the thickness of minimum arc length and electrode unit is preferably 0.01 to 1000.
Equally, the shape of friction element can be fan-shaped or part sector, it is preferably the sector identical with the 2nd electrode unit 203 size and dimension with the first electrode unit 202, so that friction element can have bigger area with sealing coat, with surface charge as much as possible in sliding process, and adjacent two first electrode unit (or adjacent two the 2nd electrode units) can not be covered in rotation process simultaneously, make friction nanometer generating assembly have higher generating efficiency.
Magnet 301 in the present invention can be the magnet such as neodymium iron boron, aluminium nickel cobalt, samarium cobalt, ferrite, it is preferable that ndfeb magnet.See Fig. 5, coil 302 is single-phase, Concentrical winding planar toroidal coil preferably, it is possible to mutually connected by all toroidal coils. The size of coil 302 size and magnet 301 is suitable, it is preferable to the diameter of toroidal coil is equal with magnet size. The number of turn of each coil adopted is not particularly limited to, it is preferable that be greater than 100 circles.
In Fig. 1 and Fig. 2, magnet component is fixedly installed on the upper surface of rotor, and coil component is fixedly installed on the lower surface of stator. In other embodiments, the position of magnet component and coil component can exchange.
In friction nanometer generating assembly, can producing that ac signal exports in rotor 10 with stator 20 mutually rotation process in electrode layer it is crucial that the material on surface that friction element and stator (such as sealing coat 201) contact with each other exists receiving and losing electrons capacity variance, the material of friction element 101 can be semi-conductor, conductor and insulating material. Described insulating material is common various insulating material, it is preferably insulating material of polymer, it is possible to the superposition of one or more being selected from methylsiloxane, polyimide, polyethylene, polypropylene, polyisobutene, polyvinyl chloride, tetrafluoroethylene, polystyrene, polyvinyl alcohol, polychloroether, polyester, urethane, polyvinyl butyral acetal, polyacrylonitrile, pet resin, poly-biphenol carbonic ether.
Sealing coat 201 is stator upper surface, it is possible to be above-mentioned insulating material, as long as the material with friction element material exists receiving and losing electrons capacity variance. The sealing coat 201 that stator 20 comprises, except sliding over each other except a friction offer friction surface with friction element 101, it is also possible to play the effect of protection the first electrode unit 202 and the 2nd electrode unit 203. First electrode unit and the 2nd electrode unit can be prepared in the lower surface of sealing coat by methods such as magnetron sputterings, it is also possible to be prepared in substrate to form electrode layer, be then arranged on electrode layer by sealing coat by the first electrode unit and the 2nd electrode unit.
When Material selec-tion insulating material or the semiconductor material of friction element 101, there is receiving and losing electrons capacity variance in the electro-conductive material usually adopted due to electrode layer and insulating material or semiconductor material, therefore, sealing coat 201 in stator 20 can omit, now, the upper surface of stator is electrode layer (some the first electrode units 202 of being arranged alternately and the 2nd electrode unit 203), the first electrode unit in friction element and electrode layer and the 2nd electrode unit slide over each other friction, particularly friction element adopts the situation of insulating material, potential difference can be formed equally between two electrode units, along with the continuous rotation of rotor and stator, alternating-current can be formed between the first electrode and the 2nd electrode export. in the present invention, as long as ensureing that the material of friction element and the top surface of stator exist receiving and losing electrons capacity variance, friction element is alternately near the first electrode unit and the 2nd electrode unit, so that it may export to form alternating-current in two electrodes. can being prepared in substrate by methods such as magnetron sputterings to form electrode layer by the first electrode unit and the 2nd electrode unit, the first electrode unit disconnected from each other and the 2nd electrode unit form fixing structure.
In order to improve the electrical signal of friction nanometer generating assembly, it is possible to arrange micro-nano structure on the surface of friction element 101, it is also possible to also arrange micro-nano structure on the surface of the upper surface (such as sealing coat) of stator.Described micro-nano structure can be nano wire, nanometer rod, nanotube, nano particle, nanometer channel, micron trenches, nanocone, micron cone, nanometer ball and micron ball-like structure, and the array that said structure is formed. Preferably, the structure such as described nano wire, nanometer rod, nanotube, nanometer channel, micron trenches, nanocone, micron cone can be made by the method for silicon template or etching.
Below for a concrete generator, the working process of generator provided by the invention is described.
To cut a diameter be 140mm thickness be 5mm include acrylic disk that 6 symmetrical diameters are 35mm circular hole as rotor frame, by magnet (circular ndfeb magnet, diameter 35mm, thickness 5mm) fix in it according to the filling of N, S pole over-over mode. To be coated with taking turning axle be the outside emissive intervals in the center of circle arrange 12 metal A l (be taking turning axle the center of circle outside emissive intervals arrangement) the two-sided sticker of polyimide film under magnet layer disk, as friction layer.
Pet resin film cutting such as the Fig. 4 being 100 μm by thickness is the outside radiation shapes in the center of circle taking turning axle, as first pair of electrode unit and the 2nd to the substrate of electrode unit. Then one layer of Al (thickness is 100nm) is deposited thereon with magnetron sputtering.
Cut the acrylic substrate that a 140mm × 140mm is square, the first electrode unit obtained by upper making and the 2nd electrode unit are combined into a complete pet resin film being coated with metal A l, its Al electrode layer is attached on acrylic substrate down, by coil component, (6 diameters are 35mm again, the circular flat coil of the series connection of the number of turn 24, arranges symmetrically) paste acrylic substrate back.
When this generator works, rotor slidably reciprocates in pet resin insulation surface, or when being alternately contacting and separating, the electric charge of opposite sign on the surface band that metal A l on polyimide film and pet resin sealing coat contact with each other. The static electric charge of the metal A l on polyimide film will move with its slip, and alternately near two electrode layers time, repeatedly change the induction potential difference between two electrode layers, thus attract in electrode loop with different electric charge move between two electrode layers, at external circuit generation current; Magneto-electric induction electrification component output induced current.
The output performance of the composite nano generator of above-mentioned preparation is tested. For magneto-electric induction electrification component, the electric current between 6514 difference measuring coil parts two ports of Keithely production and voltage is used to export, along with rotor be increased to 1000rpm relative to rotor speed from 200rpm time, the results are shown in Figure 6, wherein output voltage is increased to 2.79 volts from 0.57 volt. Outward current is increased to 309.8 milliamperes from 63.3 milliamperes. Fig. 7 is voltage and the current curve of magnetic electricity electrification component output after transformation under 1000rpm, shows that the electric current that magneto-electric induction starts assembly can produce milliampere level exports, it is possible to directly as utility power, directly powered in real time by mini electrical equipment.
For friction nanometer generating assembly, the voltage between 6514 measurement two electrodes of Keithely production is used to export, the SR570 using StanfordResearchSystem to produce measures friction nanometer generating assembly two interelectrode electric currents and exports, along with rotor be increased to 1000rpm relative to rotor speed from 200rpm time, the results are shown in Figure 8, output voltage is increased to 254 volts from 220 volts, and outward current is increased to 78.6 milliamperes from 15.9 milliamperes.Fig. 9 is power supply and the current curve of friction nanometer generating assembly output after transformation under 1000rpm, shows that friction nanometer generating assembly can produce the electric current output of milliampere level, it is possible to directly as utility power, directly powered in real time by mini electrical equipment.
The above is only the better embodiment of the present invention, and the present invention not does any restriction in form. Any those of ordinary skill in the art, do not departing from technical solution of the present invention scope situation, all can utilize the Method and Technology content of above-mentioned announcement that technical solution of the present invention is made many possible variations and modification, or be revised as the equivalent embodiment of equivalent variations. Therefore, every content not departing from technical solution of the present invention, the technical spirit of foundation the present invention, to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.

Claims (20)

1. a rotary composite nano generator, it is characterised in that, comprising:
Friction nanometer generating assembly, comprises the rotor and stator with common rotating shaft, and wherein, the lower surface of described rotor is provided with friction layer, and described friction layer is arranged as the center of circle to external irradiation taking described rotating shaft by some friction elements; Described stator comprises electrode layer, described electrode layer is spaced some first electrode units and some 2nd electrode unit in same plane, and described first electrode unit and the 2nd electrode unit all arrange to external irradiation taking the rotating shaft of stator as the center of circle, all first electrode units are connected in series and form the first electrode, and all 2nd electrode units are connected in series and form the 2nd electrode; There is receiving and losing electrons capacity variance in the top surface of described friction element and described stator; Under external force, described rotor and stator are that axle rotates mutually taking rotating shaft, make the friction element of friction layer and the upper surface slide friction of stator, friction layer surface with friction net charge move with it, make two described interelectrode induction potential differences;
Magneto-electric induction electrification component, comprising: magnet component and coil component, is separately positioned on described rotor and stator.
2. generator according to claim 1, it is characterised in that, the material of described friction element is isolator, and the upper surface of described stator is described electrode layer.
3. generator according to claim 1, it is characterised in that, described stator also comprises sealing coat, and described electrode layer is arranged on the lower surface of described sealing coat, and the upper surface of described sealing coat is the upper surface of described stator; Described sealing coat is insulating material.
4. generator according to claim 3, it is characterised in that, the material of described friction element is isolator, conductor or semiconductor material.
5. generator according to the arbitrary item of claim 2-4, it is characterized in that, the superposition of one or more that described insulating material is selected from methylsiloxane, polyimide, polyethylene, polypropylene, polyisobutene, polyvinyl chloride, tetrafluoroethylene, polystyrene, polyvinyl alcohol, polychloroether, polyester, urethane, polyvinyl butyral acetal, polyacrylonitrile, poly-biphenol carbonic ether.
6. generator according to Claims 2 or 3, it is characterised in that, friction element can not cover the first adjacent electrode unit or the 2nd electrode unit simultaneously.
7. generator according to claim 6, it is characterised in that, in described friction layer, distance between adjacent two described friction elements is equal.
8. generator according to claim 7, it is characterised in that, in described electrode layer, the first electrode that some individual described first electrode units are formed with the 2nd electrode unit is identical or complementary with the size and dimension of the 2nd electrode.
9. generator according to claim 8, it is characterised in that, described first electrode unit and the 2nd electrode unit are sector or summit cut by concentric(al) circles after the part sector structure that formed.
10. generator according to claim 9, it is characterised in that, described first electrode unit is identical with the 2nd electrode unit drift angle separately.
11. generators according to claim 10, it is characterised in that, described friction element is that the part formed after the sector identical with the first electrode unit drift angle or summit are cut by concentric(al) circles is fan-shaped; Described friction element, the first electrode unit are substantially identical with the size of the 2nd electrode unit.
12. generators according to the arbitrary item of claim 8-10, it is characterised in that, the separation distance between the first adjacent electrode unit and the 2nd electrode unit is 10nm-1cm.
13. generators according to claim 10, it is characterised in that, the ratio of the minimum arc length of described sector or part sector and the thickness of electrode unit is 0.01 to 1000.
14. generators according to claim 1, it is characterised in that, described coil component is fixed on described stator lower surface; Described magnet component is fixed on described upper rotor surface.
15. generators according to claim 1, it is characterised in that, described coil is for being single-phase, Concentrical winding planar toroidal coil; Described magnet is neodymium iron boron, aluminium nickel cobalt, samarium cobalt, ferrite.
16. generators according to claim 14, it is characterised in that, the number of turn of described coil is greater than 100 circles.
17. generators according to claim 1-4, the arbitrary item of 7-11,13-16, it is characterized in that, described magnet component comprises m to magnet, m to magnet according to N, S is extremely alternately arranged to be evenly distributed on the same circumference (m >=1) by axle of described rotating shaft, described coil component comprises 2m coil, and it take rotating shaft as the circumferentially same of axle that 2m coil is evenly distributed on.
18. generators according to claim 17, it is characterised in that, 2m described toroidal coil is connected in series.
19. generators according to claim 3, it is characterised in that, described sealing coat is laminate structure, and thickness is 10nm to 1mm.
20. generators according to claim 1, it is characterized in that, in described friction element and/or stator upper surface, at least one surface comprises micro-nano micro-nano structure, described micro-nano structure is nano wire, nanometer rod, nanotube, nano particle, nanometer channel, micron trenches, nanocone, micron cone, nanometer ball or micron ball-like structure, or the array that said structure is formed.
CN201410678022.3A 2014-11-21 2014-11-21 Rotary-type compound nanometer power generator CN105680716A (en)

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CN106056904A (en) * 2016-06-22 2016-10-26 西南交通大学 Self-driven wireless traffic flow detector based on electromagnetic-friction hybrid nano generator
CN109082714A (en) * 2017-06-14 2018-12-25 北京纳米能源与系统研究所 Electrostatic spinning system and electrospinning process
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CN110784120A (en) * 2018-07-31 2020-02-11 北京纳米能源与系统研究所 Rotary nano generator
CN109194185B (en) * 2018-10-16 2019-12-03 电子科技大学 A kind of spin friction power generator exporting unidirectional current
CN109194185A (en) * 2018-10-16 2019-01-11 电子科技大学 A kind of spin friction power generator exporting unidirectional current
CN110182892A (en) * 2019-06-14 2019-08-30 清华大学 A kind of ultraviolet water sterilizing unit using frictional electricity
CN110182891A (en) * 2019-06-14 2019-08-30 清华大学 A kind of ultraviolet water sterilizing unit based on frictional electricity

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