CN102946211B - The piezoelectric generating device that a kind of voltage is adjustable - Google Patents
The piezoelectric generating device that a kind of voltage is adjustable Download PDFInfo
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- CN102946211B CN102946211B CN201210476113.XA CN201210476113A CN102946211B CN 102946211 B CN102946211 B CN 102946211B CN 201210476113 A CN201210476113 A CN 201210476113A CN 102946211 B CN102946211 B CN 102946211B
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- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims description 24
- 238000007667 floating Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 230000035939 shock Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 208000031872 Body Remains Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Abstract
The invention discloses a kind of piezoelectric generating device, be made up of turbine rotor component, piezoelectricity coil assembly, roller assembly, described turbine rotor component comprises turbo blade, rotating shaft is formed, and rotated by turbo blade and drive rotating shaft to rotate, turbo blade is fixed on one end of rotating shaft.The present invention adopts the outer ring of bearing-type to be flexible piezoelectricity circle, roller can make it be out of shape to its extruding, when piezoelectric unit constantly increases, the voltage fluctuation exported will be made to reduce, thus require no rectification and filtering and just can produce collimation stably and flow output and overcome by centrifugal force to provide the device of shock, centrifugal force can be produced excessive and be close to piezoelectric vibrator and lost efficacy under high-velocity fluid effect.
Description
Technical field
The invention belongs to wind power generation and hydroelectric field, particularly a kind of piezoelectric generating device.
Background technology
Nature wind energy and water is utilized to generate electricity, for various outdoor facilities carries out the development trend that self-powered system meets current energy-saving and environmental protection, low-carbon (LC), have broad application prospects in fields such as industrial monitoring, intelligent transportation, intelligent grid, mine safety, environmental monitoring, safety home, health cares.
The Priya of the U.S. adopts piezoelectric device to manufacture and design a kind of small-sized wind power generator US11/252903.Can generate electricity under the wind drive of speed per hour 8 ~ 16 kilometers.The blade of generator is linked on cam, makes to produce vibration around the conglobate a series of bimorph of axle row, thus exports electric energy.The program has two shortcomings: one be piezoelectric bimorph rotate each time all with cam hits, friction, therefore produce wearing and tearing, cause energy loss, reduce useful life simultaneously.Two is when wind speed is lower, and blade and cam can not depart from, and piezoelectric bimorph keeps certain case of bending constant, now no longer generates electricity.Developed jointly by NEC TOKIN and Japanese Heardea, be equipped with adopt the new road of the Blast Furnace Top Gas Recovery Turbine Unit (TRT) of component of piezoelectric conversion be identified at Japan try out.Its principle is exactly the rolling by being placed in steel ball in cannelure, clashes into piezoelectric element and generates electricity.This device is arranged in the large vcehicular tunnel of the volume of traffic, and the air stream drives mark produced during vehicle travels can be utilized to rotate.Steel ball is arranged in the circular passage be separated into by component of piezoelectric conversion, and when mark is rotated, steel ball will move in the channel, clashes into the piezoelectric element at passage two ends, makes piezoelectric element output charge.The major defect of this scheme is, when car crosses continuously and produces strong wind, mark will high speed rotating, thus makes steel ball be close to component of piezoelectric conversion motion, and piezoelectric element can not get the pressure effect of alternation, just can not generate electricity.
Summary of the invention
The object of the present invention is to provide a kind of piezoelectric generating device efficient, applied widely utilizing piezoelectric to collect fluid dynamic energy.
The technical solution realizing the object of the invention is: a kind of piezoelectric generating device, be made up of turbine rotor component, piezoelectricity coil assembly, roller assembly, described turbine rotor component comprises turbo blade, rotating shaft is formed, being rotated by turbo blade drives rotating shaft to rotate, and turbo blade is fixed on one end of rotating shaft, piezoelectricity coil assembly is by piezoelectric, first electrode, second electrode, first wire, second wire composition, first electrode, the two sides that second electrode is coated in piezoelectric forms piezoelectric patches, one end of first wire is connected with bearing outer ring, one end of second wire and the second Electrode connection, first wire, the other end that second wire is drawn separately is connected with load, this piezoelectric patches is pasted onto on flexure strip and forms piezoelectric unit, because formed piezoelectric unit is flexible body, it can be adjacent to by toroidal in box body and form a circle, piezoelectric unit keeps in touch with roller all the time, lid is anchored on box body, piezoelectric unit, lid and box body remain inactive state, and rotating shaft is passed the center of lid and box body by bearing and is realized rotating, roller assembly comprises rolling disc, roller and retainer and forms, by rolling disc and retainer, roller is carried out spacing, roller itself can rotate voluntarily, rolling disc is fixed on the centre of rotating shaft and rolling disc and retainer matched in clearance, retainer is made to form floating state, under axis of rotation, rolling disc, roller are rotated together with rotating shaft core with retainer.
The present invention compared with prior art, its remarkable advantage: (1) adopts the outer ring of bearing-type to be flexible piezoelectricity circle, roller can make it be out of shape to its extruding, when piezoelectric unit constantly increases, the voltage fluctuation exported will be made to reduce, thus require no rectification and filtering and just can produce collimation stably and flow output; (2) overcome by centrifugal force to provide the device of shock, centrifugal force can be produced excessive and be close to piezoelectric vibrator and lost efficacy under high-velocity fluid effect; (3) different performances can be regulated according to the different roller quantity of installation, thus its excursion is increased greatly, thus this device of different model can be installed better in accordance with the time and the place; (4) utilize piezoelectric effect, harvest energy from the motion of air or other fluids, being converted into electric energy, is a kind of small-size wind power-generating or hydroelectric installation, can be used for the mini-plant of outdoor use or the self-powered of facility.Can generate electricity under very little and larger wind conditions, there is adaptability widely.
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is that (Fig. 1 a) and left view (Fig. 1 b) for the front view of piezoelectric generating device of the present invention.
Fig. 2 is that (Fig. 2 a) and partial enlarged drawing (Fig. 2 b) for piezoelectric generating device vertical view of the present invention.
Embodiment
Composition graphs 1(Fig. 1 a, Fig. 1 b) and Fig. 2 (Fig. 2 a, Fig. 2 b), the piezoelectric generating device that voltage of the present invention is adjustable, be made up of turbine rotor component, piezoelectricity coil assembly, roller assembly, described turbine rotor component comprises turbo blade 7, rotating shaft 6 is formed, turbo blade 7 is fixed on one end of rotating shaft 6, is rotated drive rotating shaft 6 to rotate by turbo blade 7;
Roller assembly comprises rolling disc 4, roller 2 and retainer 3 and forms, by rolling disc 4 and retainer 3, roller 2 is carried out spacing, roller 2 itself rotates voluntarily, rolling disc 4 is fixed on the centre of rotating shaft 6 and rolling disc 4 and retainer 3 matched in clearance, retainer 3 is made to form floating state, under rotating shaft 6 is rotated, rolling disc 4, roller 2 are rotated together with rotating shaft 6 axle center with retainer 3;
Piezoelectricity coil assembly is by piezoelectric 9, first electrode 10, second electrode 11, first wire 13, second wire 14 forms, first electrode 10, the two sides that second electrode 11 is coated in piezoelectric 9 forms piezoelectric patches, one end of first wire 13 is connected with bearing 15 outer ring, one end of second wire 14 is connected with the second electrode 11, first wire 13, the other end that second wire 14 is drawn separately is connected with load 12, this piezoelectric patches is pasted onto on flexure strip 8 and forms piezoelectric unit, piezoelectric unit is adjacent to by toroidal in box body 1 and forms a circle and form piezoelectricity circle, piezoelectric unit keeps in touch with roller 2 all the time, lid 5 is anchored on box body 1, piezoelectric unit, lid 5 and box body 1 remain inactive state, and rotating shaft 6 is passed the center of lid 5 and box body 1 by bearing 15 and is realized rotating.
With turbo blade 7, rotating shaft 6, retainer 3 and rolling disc 4 level for work installment state, fluid flow driving turbine rotor component and roller assembly rotate, roller 2 acts at retainer 3 and rolling disc 4, move in piezoelectricity circle, the outer ring piezoelectricity circle of bearing-type is flexible, roller can make it be out of shape to its extruding, and then make piezoelectric 9 electric charge that first electrode 10, second electrode 11 is produced, output to load 12 through the first wire 13, second wire 14, realize fluid dynamic energy and be converted into electric energy.Roller 2 is more than 2, equal and opposite in direction.
The kinetic transformation of air or current is the kinetic energy that rotating shaft 6 is rotated by turbo blade 7 of the present invention, thus drives the rotation of rolling disc 4.By rolling disc 4 and retainer 3, roller 2 is carried out spacing, roller 2 itself can rotate voluntarily, and rolling disc 4 and retainer 3 matched in clearance, retainer 3 is made to form floating state, under rotating shaft 1 is rotated, make rolling disc 4, roller 2 rotates together with rotating shaft 1 axle center with retainer 3, the piezoelectricity circle that the piezoelectric vibrator of roller 2 to the flexibility being fixed on box body 1 inner ring is formed carries out extruding can make it be out of shape, produce piezoelectric effect, and then make piezoelectric 9 by the first electrode 10, second electrode 11 produces electric charge, through the first electrode 10, second electrode 11 and the first wire 13, second wire 14 outputs to load 12, electric current is formed in the loop formed with load 12, the kinetic transformation of air-flow or current is electric energy the most at last.Load 12 is Light-Emitting Diode, wireless senser, current rectifying and wave filtering circuit, storage battery, electric capacity or loud speaker.
Claims (4)
1. the piezoelectric generating device that a voltage is adjustable, it is characterized in that: be made up of turbine rotor component, piezoelectricity coil assembly, roller assembly, lid (5), box body (1) and bearing (15), described turbine rotor component comprises turbo blade (7), rotating shaft (6) is formed, turbo blade (7) is fixed on one end of rotating shaft (6), is rotated drive rotating shaft (6) to rotate by turbo blade (7); Roller assembly comprises rolling disc (4), roller (2) and retainer (3) and forms, by rolling disc (4) and retainer (3), roller (2) is carried out spacing, roller (2) itself rotates voluntarily, rolling disc (4) is fixed on the centre of rotating shaft (6) and rolling disc (4) and retainer (3) matched in clearance, retainer (3) is made to form floating state, under rotating shaft (6) is rotated, rolling disc (4), roller (2) and retainer (3) are rotated together around rotating shaft (6) axle center;
Piezoelectricity coil assembly is by piezoelectric (9), first electrode (10), second electrode (11), first wire (13), second wire (14) and flexure strip (8) composition, first electrode (10), the two sides that second electrode (11) is coated in piezoelectric (9) forms piezoelectric patches, one end of first wire (13) is connected with the first electrode (10), one end of second wire (14) is connected with the second electrode (11), first wire (13), the other end that second wire (14) is drawn separately is connected with load (12), this piezoelectric patches is pasted onto on flexure strip (8) and forms piezoelectric unit, piezoelectric unit is adjacent to by the interior toroidal of box body (1) and forms a circle and form piezoelectricity circle, piezoelectric unit keeps in touch with roller (2) all the time, lid (5) is anchored on box body (1), piezoelectric unit, lid (5) and box body (1) remain inactive state, and rotating shaft (6) realizes rotating through the center of lid (5) and box body (1) by bearing (15).
2. the piezoelectric generating device that voltage according to claim 1 is adjustable, it is characterized in that: with turbo blade (7), rotating shaft (6), retainer (3) and rolling disc (4) level are operating state, fluid flow driving turbine rotor component and roller assembly rotate, roller (2) is under the drive of retainer (3) and rolling disc (4), move in piezoelectricity circle, piezoelectricity circle is flexible, roller (2) can make it be out of shape to the extruding of piezoelectricity circle, and then make piezoelectric (9) in the first electrode (10), (11) produce electric charge to second electrode, through the first wire (13), second wire (14) outputs to load (12), realize fluid dynamic energy and be converted into electric energy.
3. the piezoelectric generating device that voltage according to claim 1 and 2 is adjustable, is characterized in that: roller (2) is two or more, equal and opposite in direction.
4. the piezoelectric generating device that voltage according to claim 1 is adjustable, is characterized in that: load (10) is Light-Emitting Diode, wireless senser, current rectifying and wave filtering circuit, storage battery, electric capacity or loud speaker.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210476113.XA CN102946211B (en) | 2012-11-21 | 2012-11-21 | The piezoelectric generating device that a kind of voltage is adjustable |
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| CN201210476113.XA CN102946211B (en) | 2012-11-21 | 2012-11-21 | The piezoelectric generating device that a kind of voltage is adjustable |
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| CN102946211A CN102946211A (en) | 2013-02-27 |
| CN102946211B true CN102946211B (en) | 2015-09-30 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490667B (en) * | 2013-08-21 | 2015-09-09 | 南京航空航天大学 | Reed-type piezoelectric generating device and method |
| CN106100443B (en) * | 2016-06-15 | 2017-10-31 | 浙江师范大学 | A kind of self-luminous Warning light of bicycle |
| CN106160574B (en) * | 2016-06-15 | 2018-01-19 | 浙江师范大学 | A kind of off-resonance type wheel-type electric generator based on cantilever beam piezoelectric vibrators |
| CN107359817B (en) * | 2017-08-17 | 2023-06-02 | 浙江师范大学 | Wind-induced gyromagnetic excitation piezoelectric generator |
| CN108599618B (en) * | 2018-03-13 | 2024-09-13 | 长沙紫宸科技开发有限公司 | Piezoelectric power generation device utilizing wind energy and human and animal power to work |
| CN109067249B (en) * | 2018-09-29 | 2024-01-09 | 扬州大学 | Hydraulic piezoelectric power generation device |
| CN112134489B (en) * | 2020-09-04 | 2021-09-24 | 厦门大学 | Eccentric installation rotary piezoelectric vibration energy collecting device |
| CN112234790B (en) * | 2020-10-04 | 2022-06-17 | 长春工业大学 | Water flow vibration piezoelectric electromagnetic combined type energy collecting device |
| CN113078847B (en) * | 2021-04-09 | 2022-05-17 | 国网江西省电力有限公司供电服务管理中心 | Breeze energy collector with full wind direction and wide working wind speed |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004166442A (en) * | 2002-11-15 | 2004-06-10 | Taiheiyo Cement Corp | Generator and power generation system |
| US7686974B2 (en) * | 2005-10-18 | 2010-03-30 | Board Of Regents, The University Of Texas System | High energy density piezoelectric ceramic materials |
| CN201372898Y (en) * | 2008-12-01 | 2009-12-30 | 西安理工大学 | Wind energy converting device based on piezoelectric material |
| CN202978756U (en) * | 2012-11-21 | 2013-06-05 | 南京航空航天大学 | Voltage-adjustable piezoelectric power generation device |
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