CN105634205A - Micro piezoelectric-electromagnetic composite power generation device - Google Patents
Micro piezoelectric-electromagnetic composite power generation device Download PDFInfo
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- CN105634205A CN105634205A CN201610178608.2A CN201610178608A CN105634205A CN 105634205 A CN105634205 A CN 105634205A CN 201610178608 A CN201610178608 A CN 201610178608A CN 105634205 A CN105634205 A CN 105634205A
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- 238000010248 power generation Methods 0.000 title claims abstract description 27
- 239000002131 composite material Substances 0.000 title claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 238000004804 winding Methods 0.000 claims description 21
- 239000000919 ceramic Substances 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000005520 cutting process Methods 0.000 abstract description 6
- 230000006698 induction Effects 0.000 abstract description 6
- 230000001133 acceleration Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 7
- 230000003321 amplification Effects 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007123 defense Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention discloses a micro piezoelectric-electromagnetic composite power generation device, which comprises an electromagnetic power generation unit, a piezoelectric power generation unit, a planetary gear acceleration mechanism, a housing and a bulge structure, wherein a brushed DC motor structure is adopted by the electromagnetic power generation unit; a cantilever beam-type piezoelectric vibrator structure is adopted by the piezoelectric power generation unit; and the electromagnetic power generation unit and the piezoelectric power generation unit convert external mechanical energy into electric energy. Rotating speed multiplication of a sun gear is achieved by reasonably matching various gear teeth of the planetary gear acceleration mechanism, so that the speed of cutting a magnetic induction line by a coil and the frequency of exciting a piezoelectric vibrator by the bulge structure are improved; and the power generation efficiency is further improved. Two different power generation mechanisms are achieved by the same mechanism, so that the effect of superposing and amplifying output electric energy is achieved; and the power generation efficiency is further improved through ingenious combination with the planetary gear acceleration mechanism.
Description
Technical field
The present invention relates to MEMS and micro-energy technology, it is mainly used in the field of the electrical energy fed inconvenience such as national defense and military, field exploration, geological exploration, specifically a kind of miniature piezoelectric-Electromagnetic heating power generation assembly.
Background technology
Micro generation technology has broad application prospects in fields such as national defense and military, field exploration, geological explorations. Currently, the specific occasion of the electrical energy fed inconvenience such as warlike operation in the wild, tourism exploration, the overwhelming majority removable equipment of micro radio all depends on powered battery. There is finite energy, need to regularly change in traditional chemical cell, the easy shortcoming such as contaminate environment, and the development and utilization of cleaning, reliable, cheap novel energy will be trend of the times. The natural energy resources such as sun power, wind energy, tidal energy can be converted into electric energy by miniature power generating device, meets the needs of industrial production and daily life.
According to electricity generating principle, miniature power generating device generally has several classes such as electromagnetic type, electrostatic, piezoelectric type. Wherein electromagnetic type has the features such as generated energy is big, theory is ripe, be widely used; Piezoelectric type volume is little, generating efficiency height, environmental adaptation ability are strong. Recent study personnel have carried out a large amount of correlative study in piezoelectric performance, new-generation structure design and charge storage etc. A kind of miniature piezoelectric windmill has been invented by Texas ,Usa university, compared with tradition wind power generation windmill, effciency of energy transfer can be made under identical size to improve 18 times; The RoundyS. of the U.S. etc. have developed the self energizing utilizing small-sized piezoelectric power generation assembly to realize sensor node with S.W.Arms etc., and the piezoelectric generating device that wherein RoundyS. proposes is at 25m/s2When acceleration, 1.6% output duty cycle and 120Hz natural frequency, at 1cm3Model on produce electric power be 375 �� W, the need for electricity of sensor node can be met, effectively prevent battery altering or charging; NathanS.Shenck have studied a kind of piezo-electric generating footwear, and during by walking, the impact of sole is made piezoelectric ceramics produce electric charge output by pin; The YabinLiao of the vertical university of State of Arizona, US have studied and adds quality block on socle girder different positions to the impact of Vibration Feature of Cantilever Beam and generating efficiency; Professor Pisano in California, USA university Berkeley branch school adopts the energy transformation pattern of vibration-piezoelectricity, have developed the energy collecting device that at high temperature still can obtain 87uW/cm2 power density;
Summary of the invention
Given this, it is an object of the invention to provide a kind of miniature piezoelectric-Electromagnetic heating power generation assembly.
The present invention achieves piezoelectricity by same mechanism, electromagnetism two kinds of different mechanism of power generation generate electricity simultaneously, to reach the effect exporting electric energy superposition amplification, and adopt sun and planet gear to accelerate mechanism at the input terminus of extraneous mechanical energy, further increase generating efficiency.
The present invention accelerates mechanism by piezoelectricity-Electromagnetic heating power facility, sun and planet gear to form, and described piezoelectricity-Electromagnetic heating power facility is made up of Electromagnetic generation unit, piezo-electric generating unit, bulge-structure and shell etc.; Electromagnetic generation unit adopts brushless motor structure, and Electromagnetic generation unit comprises stators and rotators two portions, and main pole that stator is made up of two panels semi-circular magnetic shoe, brush, end cap form; Rotor is made up of armature winding, armature core, reverser and rotating shaft, and armature winding is wound on armature core, and the head and end of armature winding respectively connected two panels commutator segment, and commutator segment contacts with fixing brush and derives the electric energy that armature winding produces; Piezo-electric generating unit adopts cantilever piezoelectric oscillator, piezoelectric vibrator is made up of piezoelectric ceramic piece and metal substrate, piezoelectric ceramic piece is affixed on metal substrate upper surface and forms composite cantilever structure, and piezoelectric ceramic piece upper surface and metal substrate lower surface draw wire to export electric energy; Multiple piezoelectric vibrator is radially fixed on armature core surface, evenly alternately arranged with armature winding.
Described sun and planet gear accelerates planetary set, sun wheel and planet carrier that mechanism is made up of input shaft, ring gear, three sun and planet gear and forms; Input shaft end and planet carrier center join admittedly, three complete identical sun and planet gear are distributed in planet carrier surface by common axis of planet carrier central shaft, three sun and planet gear both with the coaxial ring gear internal messing being fixed on housing, again with the sun wheel external toothing being positioned at its common axis.
In order to when identical dynamic excitation, make the strain of piezoelectric vibrator become big, improve its natural frequency and stress distribution situation, the power generation capacity of piezoelectric vibrator is utilized more fully, described piezoelectric vibrator is ladder structure, or adds mass block structure, or adds quality block ladder structure.
The principle of work of the present invention:
Electromagnetic generation unit adopts brushless motor structure, and under extraneous mechanical energy drives, the rotor being wrapped armature winding rotates relative to the main pole being made up of magnetic shoe, and cutting magnetic induction line produces inductive emf and exports electric energy by reverser, brush successively. Piezo-electric generating unit adopts cantilever piezoelectric oscillator, in rotor turns process, the piezoelectric vibrator being fixed on rotor is constantly subject to the incentive action of shell projection structure, constantly produces Tension and Compression distortion, converts mechanical energy to electric energy based on direct piezoelectric effect and exports. For improving effciency of energy transfer further, input terminus in mechanical energy is designed with sun and planet gear and accelerates mechanism, when external mechanical can drive input shaft, drive three sun and planet gear on planet carrier along the revolution of fixing ring gear and rotation simultaneously, then drive sun wheel to rotate. By each number of gear teeth of rational Match, it is achieved sun gear rotating speed doubles, thus accelerate the speed of armature winding cutting magnetic induction line and piezoelectric vibrator by the frequency of bulge-structure excitation, improve generating efficiency further. The miniature piezoelectric that the present invention mentions-Electromagnetic heating power generation assembly had both adopted same mechanism to achieve two kinds of different mechanism of power generation, to reach the effect exporting electric energy superposition amplification, again by with sun and planet gear accelerate mechanism ingenious combination, further increase generating efficiency.
The useful effect of the present invention:
1, the present invention adopts same mechanism to achieve piezoelectricity, electromagnetism two kinds of different mechanism of power generation, to reach the effect exporting electric energy superposition amplification, is conducive to improving generating efficiency and energy density.
2, the present invention adopts sun and planet gear to accelerate mechanism, accelerates the speed of armature winding cutting magnetic induction line and piezoelectric vibrator is subject to the frequency of bulge-structure excitation, is conducive to improving further generating efficiency.
3, mutually vertical with the direction that piezoelectricity electric charge produces (piezoelectric constant is d to the Impact direction of piezoelectric ceramic piece of the present invention31), it is consistent with the vibration mode of power generation assembly design, bigger improves effciency of energy transfer.
Accompanying drawing explanation
Fig. 1 one-piece construction schematic diagram of the present invention.
Fig. 2 piezoelectricity-Electromagnetic heating power facility explosive view.
Fig. 3 sun and planet gear accelerates mechanism's explosive view.
Fig. 4 piezoelectric monocrystal socle girder schematic diagram.
Fig. 5 Electromagnetic generation unit schematic diagram.
Fig. 6 piezoelectric vibrator schematic diagram.
Fig. 7 ladder piezoelectric oscillator schematic diagram.
Fig. 8 adds quality block piezoelectric vibrator schematic diagram.
Fig. 9 adds quality block ladder piezoelectric oscillator schematic diagram.
Wherein, 1 piezoelectric vibrator; 2 sun and planet gear accelerate mechanism; 3 bulge-structures; 4 armature winding; 5 armature cores; 6 main poles; 7 housings; 8 reversers; 9 rotating shafts; 10 brushes; 11 end caps; 2-1 input shaft; 2-2 ring gear; 2-3 sun and planet gear; 2-4 sun wheel; 2-5 planet carrier; 1-1 metal substrate; 1-2 piezoelectric ceramic piece; 1-3 quality block.
Embodiment
In the present invention, the number of piezoelectric vibrator and coil is not circumscribed, in the present embodiment, is alternately distributed for six piezoelectric vibrators and coil.
As shown in Figures 1 to 6, the present embodiment accelerates mechanism 2 by piezoelectricity-Electromagnetic heating power facility, sun and planet gear to form, and described piezoelectricity-Electromagnetic heating power facility is made up of Electromagnetic generation unit, piezo-electric generating unit, bulge-structure 3 and shell 7 etc.; Electromagnetic generation unit adopts brushless motor structure, and Electromagnetic generation unit comprises stators and rotators two portions, and main pole 6 that stator is made up of two panels semi-circular magnetic shoe, brush 10, end cap 11 form; Rotor is made up of armature winding 4, armature core 5 and rotating shaft 9, armature winding 4 is wound on armature core 5, the head and end of armature winding 4 respectively connected two panels reverser 8, and reverser 8 contacts with fixing brush 10 and derives the electric energy that armature winding 4 produces; Piezo-electric generating unit adopts cantilever piezoelectric oscillator 1, piezoelectric vibrator 1 is made up of piezoelectric ceramic piece 1-2 and metal substrate 1-1, piezoelectric ceramic piece 1-2 is affixed on metal substrate 1-1 upper surface and forms composite cantilever structure, and piezoelectric ceramic piece 1-2 upper surface and metal substrate 1-1 lower surface draw wire to export electric energy; Multiple piezoelectric vibrator 1 is radially fixed on armature core 5 surface, evenly alternately arranged with armature winding 4.
Described sun and planet gear accelerates planetary set, sun wheel 2-4 and planet carrier 2-5 that mechanism 2 is made up of input shaft 2-1, ring gear 2-2, three sun and planet gear 2-3 and forms; Input shaft 2-1 end and planet carrier 2-5 center join admittedly, three complete identical sun and planet gear 2-3 are distributed in planet carrier 2-5 surface by common axis of planet carrier 2-5 central shaft, three sun and planet gear 2-3 both with the coaxial ring gear 2-2 internal messing being fixed on housing, again with the sun wheel 2-4 external toothing being positioned at its common axis.
In order to when identical dynamic excitation, the strain of piezoelectric vibrator 1 is made to become big, improve its natural frequency and stress distribution situation, the power generation capacity of piezoelectric vibrator 1 is utilized more fully, described piezoelectric vibrator 1 can be designed to ladder structure as shown in Figure 7, add quality block 1-3 structure shown in Fig. 8, shown in Fig. 9, add quality block 1-3 ladder structure.
The principle of work of the present embodiment:
Electromagnetic generation unit adopts brushless motor structure, under extraneous mechanical energy drives, the rotor being wrapped armature winding 4 rotates relative to the main pole 6 being made up of magnetic shoe, and cutting magnetic induction line produces inductive emf and exports electric energy by reverser 8, brush 10 successively. Piezo-electric generating unit adopts piezoelectric monocrystal cantilever beam structure, is made up of piezoelectric ceramic piece 1-2 and metal substrate 1-1. During Selective Pressure electroceramics 1-2 material, the performance perameter of piezoelectric should be made to be beneficial to piezoelectricity positive-effect, namely there is bigger electromechanical coupling factor, piezoelectricity voltage constant, mechanical quality factor and relative permittivity, and piezoelectric strain constant is less, therefore, this sentences PZT-5H piezoelectric is example explanation. When selecting baseplate material, the performance of baseplate material should be made to be conducive to improving the strain of piezoelectric vibrator 1, berylliumbronze is not only out of shape under equal conditions bigger, and there is higher conductivity, the mechanical propertys such as antifatigue, anti-rotten candle are all comparatively excellent, therefore embodiment using berylliumbronze as metal substrate 1-1; In rotor turns process, six piezoelectric vibrators 1 being evenly fixed on rotor are constantly subject on shell 7 being separated by 180 �� the incentive action of two bulge-structures 3 distributed and are made with free decaying vibration, make piezoelectric ceramic piece 1-2 constantly produce Tension and Compression distortion, convert mechanical energy to electric energy based on direct piezoelectric effect and export. For improving effciency of energy transfer further, input terminus in mechanical energy is designed with sun and planet gear and accelerates mechanism 2, when external mechanical can drive input shaft 2-1, drive three sun and planet gear 2-3 of 2-5 on planet carrier to revolve round the sun along fixing ring gear 2-2 and rotation simultaneously, then drive sun wheel 2-4 to rotate. By each number of gear teeth of rational Match, it is achieved sun gear 2-4 rotating speed doubles, thus accelerate the speed of armature winding 4 cutting magnetic induction line and frequency that piezoelectric vibrator 1 encourages by bulge-structure 3, improve generating efficiency further. The miniature piezoelectric that the present invention mentions-Electromagnetic heating power generation assembly had both adopted same mechanism to achieve two kinds of different mechanism of power generation, to reach the effect exporting electric energy superposition amplification, again by with sun and planet gear accelerate mechanism 2 ingenious combination, further increase generating efficiency.
Claims (2)
1. miniature piezoelectric-Electromagnetic heating power generation assembly, it is characterized in that: being accelerate mechanism (2) by piezoelectricity-Electromagnetic heating power facility, sun and planet gear to form, described piezoelectricity-Electromagnetic heating power facility is made up of Electromagnetic generation unit, piezo-electric generating unit, bulge-structure (3) and shell (7); Electromagnetic generation unit adopts brushless motor structure, and Electromagnetic generation unit comprises stators and rotators two portions, and main pole (6) that stator is made up of two panels semi-circular magnetic shoe, brush (10), end cap (11) form; Rotor is made up of armature winding (4), armature core (5), reverser (8) and rotating shaft 9, armature winding (4) is wound on armature core (5), the head and end of armature winding (4) respectively connected two panels reverser (8), and reverser (8) contacts with fixing brush (10) and derives the electric energy that armature winding (4) produces; Piezo-electric generating unit adopts cantilever piezoelectric oscillator (1), piezoelectric vibrator (1) is made up of piezoelectric ceramic piece (1-2) and metal substrate (1-1), piezoelectric ceramic piece (1-2) is affixed on metal substrate (1-1) upper surface and forms composite cantilever structure, and piezoelectric ceramic piece (1-2) upper surface and metal substrate (1-1) lower surface draw wire to export electric energy; Multiple piezoelectric vibrator (1) is radially fixed on armature core (5) surface, evenly alternately arranged with armature winding (4);
Described sun and planet gear accelerates planetary set, sun wheel (2-4) and planet carrier (2-5) formation that mechanism (2) is made up of input shaft (2-1), ring gear (2-2), three sun and planet gear (2-3); Input shaft (2-1) end and planet carrier (2-5) center join admittedly, three complete identical sun and planet gear (2-3) are distributed in planet carrier (2-5) surface by common axis of planet carrier (2-5) central shaft, three sun and planet gear (2-3) both with coaxial ring gear (2-2) internal messing being fixed on housing, again with sun wheel (2-4) external toothing being positioned at its common axis.
2. a kind of miniature piezoelectric-Electromagnetic heating power generation assembly according to claim 1, it is characterised in that: described piezoelectric vibrator is ladder structure, or adds mass block structure, or adds quality block ladder structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610178608.2A CN105634205B (en) | 2016-03-25 | 2016-03-25 | A kind of miniature piezoelectric-Electromagnetic heating power generator |
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| CN201610178608.2A CN105634205B (en) | 2016-03-25 | 2016-03-25 | A kind of miniature piezoelectric-Electromagnetic heating power generator |
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| CN105634205A true CN105634205A (en) | 2016-06-01 |
| CN105634205B CN105634205B (en) | 2018-09-18 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958865A (en) * | 2016-06-21 | 2016-09-21 | 南京邮电大学 | Isosceles trapezoid cantilever beam-based piezoelectric-electromagnetic energy capture device |
| CN107453647A (en) * | 2017-07-31 | 2017-12-08 | 上海交通大学 | Wide speed domain magnetic couple piezoelectricity wind energy collector |
| CN108111057A (en) * | 2017-12-29 | 2018-06-01 | 浙江理工大学 | A kind of multi-functional three directions piezoelectricity-electromagnetic coupling formula energy converter |
| WO2019090820A1 (en) * | 2017-11-10 | 2019-05-16 | 苏州大学 | Composite rotation energy collector |
| CN110112954A (en) * | 2019-05-20 | 2019-08-09 | 山东理工大学 | A kind of Wind power rotary piezoelectricity-Electromagnetic heating power generator |
| CN113090466A (en) * | 2021-05-20 | 2021-07-09 | 徐桂云 | Piezoelectric function yawing type wind driven generator |
| CN113629907A (en) * | 2021-08-07 | 2021-11-09 | 西北工业大学 | Piezoelectric-electromagnetic combined type power generation device for collecting energy of rotating shaft |
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| JP2007028881A (en) * | 2005-06-14 | 2007-02-01 | Nissan Motor Co Ltd | Dynamo-electric machine |
| US20120007473A1 (en) * | 2010-02-25 | 2012-01-12 | People & Environment Co., Ltd. | Piezoelectric generator unit using piezoelectric bimorph |
| CN102723894A (en) * | 2012-05-28 | 2012-10-10 | 南京航空航天大学 | Rotary piezoelectric generation device |
| CN202713190U (en) * | 2012-08-27 | 2013-01-30 | 杭州电子科技大学 | Piezoelectric/electromagnetic combined-type micro energy device |
| CN203570520U (en) * | 2013-10-30 | 2014-04-30 | 东北大学 | Hybrid piezoelectric and electromagnetic vibration energy power generation device |
| CN205583927U (en) * | 2016-03-25 | 2016-09-14 | 吉林大学 | Compound power generation facility of miniature piezoelectricity - electromagnetism |
-
2016
- 2016-03-25 CN CN201610178608.2A patent/CN105634205B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007028881A (en) * | 2005-06-14 | 2007-02-01 | Nissan Motor Co Ltd | Dynamo-electric machine |
| US20120007473A1 (en) * | 2010-02-25 | 2012-01-12 | People & Environment Co., Ltd. | Piezoelectric generator unit using piezoelectric bimorph |
| CN102723894A (en) * | 2012-05-28 | 2012-10-10 | 南京航空航天大学 | Rotary piezoelectric generation device |
| CN202713190U (en) * | 2012-08-27 | 2013-01-30 | 杭州电子科技大学 | Piezoelectric/electromagnetic combined-type micro energy device |
| CN203570520U (en) * | 2013-10-30 | 2014-04-30 | 东北大学 | Hybrid piezoelectric and electromagnetic vibration energy power generation device |
| CN205583927U (en) * | 2016-03-25 | 2016-09-14 | 吉林大学 | Compound power generation facility of miniature piezoelectricity - electromagnetism |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958865A (en) * | 2016-06-21 | 2016-09-21 | 南京邮电大学 | Isosceles trapezoid cantilever beam-based piezoelectric-electromagnetic energy capture device |
| CN107453647A (en) * | 2017-07-31 | 2017-12-08 | 上海交通大学 | Wide speed domain magnetic couple piezoelectricity wind energy collector |
| WO2019090820A1 (en) * | 2017-11-10 | 2019-05-16 | 苏州大学 | Composite rotation energy collector |
| US11228259B2 (en) | 2017-11-10 | 2022-01-18 | Soochow University | Hybrid rotary energy harvester |
| CN108111057A (en) * | 2017-12-29 | 2018-06-01 | 浙江理工大学 | A kind of multi-functional three directions piezoelectricity-electromagnetic coupling formula energy converter |
| CN108111057B (en) * | 2017-12-29 | 2023-10-31 | 浙江理工大学 | Multifunctional three-direction piezoelectric-electromagnetic coupling transducer |
| CN110112954A (en) * | 2019-05-20 | 2019-08-09 | 山东理工大学 | A kind of Wind power rotary piezoelectricity-Electromagnetic heating power generator |
| CN113090466A (en) * | 2021-05-20 | 2021-07-09 | 徐桂云 | Piezoelectric function yawing type wind driven generator |
| CN113629907A (en) * | 2021-08-07 | 2021-11-09 | 西北工业大学 | Piezoelectric-electromagnetic combined type power generation device for collecting energy of rotating shaft |
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Granted publication date: 20180918 Termination date: 20200325 |