CN103758701B - A kind of wind generating unit based on direct piezoelectric effect - Google Patents
A kind of wind generating unit based on direct piezoelectric effect Download PDFInfo
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- CN103758701B CN103758701B CN201410022516.6A CN201410022516A CN103758701B CN 103758701 B CN103758701 B CN 103758701B CN 201410022516 A CN201410022516 A CN 201410022516A CN 103758701 B CN103758701 B CN 103758701B
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- piezoelectric stack
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention discloses a kind of wind generating unit based on direct piezoelectric effect, by part, piezo-electric generating parts and subsequent process circuit module form windward, Wind Power Utilization combines with piezo-electric generating and achieves wind-power electricity generation by the present invention, and the present invention has the advantages such as structure is simple, installation manufacture is easy to maintenance, cost is low, wind energy utilization is high, threshold wind velocity is low.
Description
Technical field
The present invention relates to a kind of electricity generating device, particularly a kind of wind generating unit based on direct piezoelectric effect.
Background technique
Wind energy has the advantages such as clean, cheap, renewable, reserves are large, utilizes wind energy to carry out generating electricity and have huge using value and good development prospect.At present, the major way of wind-power electricity generation utilizes wind power generating set to generate electricity, and wind power generating set is primarily of compositions such as impeller, speed increaser, generators, and its generated output can reach hundreds of kilowatt, and generating capacity is very strong.But the huge structure of wind power generating set is complicated, installation and maintenance difficulty, cost is high, containing movement parts such as gear, bearing, transmission shafts in unit, require very high to these movement parts, and maintain and repair methods is inconvenient.
Piezo-electric generating produces electric energy after utilizing piezoelectric material deforms and realizes generating electricity, its have structure simple, realize convenient, low cost and other advantages.Piezoelectric material is a kind of energy-saving environment-friendly materials, and green safety, can not produce poisonous and hazardous residuals, meets the requirement of sustainable development.At present, piezo-electric generating has had substantial progress.Piezo-electric generating floor, piezo-electric generating highway, wave piezo-electric generating etc. test successfully.But the energy that current piezoelectric generating device mainly utilizes is from manpower, the sub-fraction in the mechanical energy in environment, energy sources is limited.
Summary of the invention
The object of the invention is to solve existing wind power generation device structure is complicated, installation and maintenance are difficult, cost is high problem and a kind of wind generating unit based on direct piezoelectric effect is provided.
The present invention is made up of part, piezo-electric generating parts and subsequent process circuit module windward, and wherein one end of connecting rod is connected with part windward, and the other end is fastened on flexural pivot upper end; Piezo-electric generating parts are made up of the bolt that exerts a force, pressing plate, cylinder body, base plate, flexural pivot, bulb upper cover, force-transmitting block, piezoelectric stack, and described piezoelectric stack is mechanically to connect and in electricity, the Placement of series-parallel connection is formed by connecting by several identical piezo-electric sheet; Cylinder body offers and is severally uniformly distributed in same through hole circumferentially, cylinder body is connected with base plate by lower end surface, and piezoelectric stack loads the through hole in cylinder body, and piezoelectric stack lower end surface contacts with the boss on base plate, force-transmitting block is equipped with in the top of piezoelectric stack, and force-transmitting block offers blind hole; Flexural pivot, cylinder body and bulb upper cover composition spherical hinge; Pressing plate is connected and fixed on flexural pivot, pressing plate offers and is uniformly distributed in circumferentially same and corresponding to force bolt tapped through hole, force bolt screws in the tapped through hole on pressing plate, the smooth cylindrical portion of force bolt screw rod inserts in the blind hole of force-transmitting block, and the force bottom of bolt contacts with the blind via bottom of force-transmitting block; Subsequent process circuit module comprises rectification circuit, eliminator and mu balanced circuit, each piezoelectric stack correspondence connect a subsequent process circuit module and the output terminal of piezoelectric stack as the input end of subsequent process circuit module; The output terminal of all subsequent process circuit modules is connected in parallel and as the electric energy output end of whole electricity generating device.
Described part is windward the bionical tree crown imitating Crown Structure and manufacture.
Profile and the structure of described part are windward axisymmetric.
Working procedure of the present invention and principle are:
The present invention is connected and fixed in field of wind-force by base plate, and wind-force passes to piezoelectric stack through part, connecting rod, flexural pivot, pressing plate, force bolt and force-transmitting block windward successively, applies precompression by force bolt to piezoelectric stack; Force-transmitting block limits the rotary motion of pressing plate around pivotal axis with force bolt, and force-transmitting block makes piezoelectric stack only be subject to axial pressure; Due to the parameter moment change of field of wind-force and the coupled motions of part in field of wind-force windward, act on the size of the axial pressure on piezoelectric stack in continuous change, piezoelectric stack ceaselessly will be out of shape and export electric energy continuously; The final output voltage of piezoelectric stack is made substantially to be in stationary value by subsequent process circuit module; Subsequent process circuit module output terminal stacks up according to the corresponding identical electric energy making all piezoelectric stacks produce that is connected in parallel of polarity and externally exports.
Beneficial effect of the present invention:
1, simple, the easy making and installation of structure of the present invention and maintenance, cost is low;
2, in the present invention, connecting rod, flexural pivot and pressing plate form a regulations and parameters mechanism, amplify wind-force, add the output voltage of piezoelectric stack;
3, the part windward in the present invention produces coupled motions in field of wind-force, the key factor that this axial pressure size being acting piezoelectric stacks constantly changes, and part makes that the wind energy utilization of device is high and threshold wind velocity is little windward;
4, the series-parallel connection mode in the piezoelectric stack electricity in the present invention can increase output voltage and electric current simultaneously; Piezoelectric stack principle only bears axial pressure, make the piezo-electric sheet stress in piezoelectric stack identical, each piezo-electric sheet output voltage in piezoelectric stack is identical with electric current, and electric charge Overlay during piezo-electric sheet series connection is best, and when piezo-electric sheet is in parallel, voltage superposition effect is best;
5, the present invention can realize wind-power electricity generation, the present invention can be used for charging to storage battery, grid-connected, directly connect load etc.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the present invention's part windward.
Fig. 2 is the schematic perspective view of piezo-electric generating parts of the present invention.
Fig. 3 is the structural representation of piezo-electric generating parts of the present invention.
Fig. 4 is circuit connection diagram of the present invention.
Embodiment
Refer to shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the present embodiment is by part 1, piezo-electric generating parts and subsequent process circuit module 11 form windward, wherein part 1 imitates pine tree Crown Structure and manually manufactures and form windward, profile is conical, connecting rod 2 is long micropipe, one end of connecting rod 2 is connected with part 1 windward, and the other end is fastened on flexural pivot 7 upper end; Piezo-electric generating parts are made up of the bolt 3 that exerts a force, pressing plate 4, cylinder body 5, base plate 6, flexural pivot 7, bulb upper cover 8, force-transmitting block 9, piezoelectric stack 10, and described piezoelectric stack 10 is mechanically to connect and in electricity, the Placement of series-parallel connection is formed by connecting by several identical piezo-electric sheet; Cylinder body 5 offers eight and be uniformly distributed in same through hole circumferentially, cylinder body 5 is connected with base plate 6 by lower end surface, piezoelectric stack 10 loads the through hole in cylinder body 5, piezoelectric stack 10 lower end surface contacts with the boss on base plate 6, force-transmitting block 9 is equipped with in the top of piezoelectric stack 10, force-transmitting block 9 offers blind hole 12; Flexural pivot 7, cylinder body 5 and bulb upper cover 8 form spherical hinge; Pressing plate 4 is connected and fixed on flexural pivot 7, pressing plate 4 offers and is uniformly distributed in circumferentially same and corresponding to force bolt 3 tapped through hole, force bolt 3 screws in the tapped through hole on pressing plate 4, the smooth cylindrical portion of force bolt 3 screw rod inserts in the blind hole 12 of force-transmitting block 9, and contacts bottom the force bottom of bolt 3 and the blind hole 12 of force-transmitting block 9; Subsequent process circuit module 11 comprises rectification circuit, eliminator and mu balanced circuit, each piezoelectric stack 10 correspondence connect a subsequent process circuit module 11 and the output terminal of piezoelectric stack 10 as the input end of subsequent process circuit module 11; The output terminal of all subsequent process circuit modules 11 is connected in parallel and as the electric energy output end of whole electricity generating device.
Working procedure and the principle of the present embodiment are:
The present embodiment is connected and fixed in field of wind-force by base plate 6, and wind-force passes to piezoelectric stack 10 through part 1 windward, connecting rod 2, flexural pivot 7, pressing plate 4, force bolt 3 and force-transmitting block 9 successively, applies precompression by force bolt 3 pairs of piezoelectric stacks 10; Force-transmitting block 9 limits the rotary motion of pressing plate 4 around pivotal axis with force bolt 3, and force-transmitting block 9 makes piezoelectric stack 10 only be subject to axial pressure; Due to the parameter moment change of field of wind-force and the coupled motions of part 1 in field of wind-force windward, act on the size of the axial pressure on piezoelectric stack 10 in continuous change, piezoelectric stack 10 ceaselessly will be out of shape and export electric energy continuously; The final output voltage of piezoelectric stack 10 is made substantially to be in stationary value by subsequent process circuit module 11; Subsequent process circuit module 11 output terminal stacks up according to the corresponding identical electric energy making all piezoelectric stacks 10 produce that is connected in parallel of polarity and externally exports.
Claims (3)
1. the wind generating unit based on direct piezoelectric effect, it is characterized in that: by part (1), piezo-electric generating parts and subsequent process circuit module (11) form windward, wherein part (1) is the bionical tree crown imitating Crown Structure and manufacture windward, one end of connecting rod (2) is connected with part (1) windward, and the other end is fastened on flexural pivot (7) upper end; Piezo-electric generating parts are made up of the bolt that exerts a force (3), pressing plate (4), cylinder body (5), base plate (6), flexural pivot (7), bulb upper cover (8), force-transmitting block (9), piezoelectric stack (10), and described piezoelectric stack (10) is mechanically to connect and in electricity, the Placement of series-parallel connection is formed by connecting by several identical piezo-electric sheet; Cylinder body (5) offers and is severally uniformly distributed in same through hole circumferentially, cylinder body (5) is connected with base plate (6) by lower end surface, piezoelectric stack (10) loads the through hole in cylinder body (5), piezoelectric stack (10) lower end surface contacts with the boss on base plate (6), force-transmitting block (9) is equipped with in the top of piezoelectric stack (10), force-transmitting block (9) offers blind hole (12); Flexural pivot (7), cylinder body (5) and bulb upper cover (8) composition spherical hinge; Pressing plate (4) is connected and fixed on flexural pivot (7), pressing plate (4) offers and is uniformly distributed in circumferentially same and corresponding with force bolt (3) tapped through hole, force bolt (3) screws in the tapped through hole on pressing plate (4), the smooth cylindrical portion of force bolt (3) screw rod inserts in the blind hole (12) of force-transmitting block (9), and the bottom of force bolt (3) contacts with blind hole (12) bottom of force-transmitting block (9); Subsequent process circuit module (11) comprises rectification circuit, eliminator and mu balanced circuit, and each piezoelectric stack (10) correspondence connects a subsequent process circuit module (11) and the output terminal of piezoelectric stack (10) input end as subsequent process circuit module (11); The output terminal of all subsequent process circuit modules (11) is connected in parallel and as the electric energy output end of whole electricity generating device.
2. a kind of wind generating unit based on direct piezoelectric effect according to claim 1, is characterized in that: described part windward (1) is bionical tree crown.
3. a kind of wind generating unit based on direct piezoelectric effect according to claim 2, is characterized in that: the profile of part (1) and structure are axisymmetric windward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410022516.6A CN103758701B (en) | 2014-01-17 | 2014-01-17 | A kind of wind generating unit based on direct piezoelectric effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410022516.6A CN103758701B (en) | 2014-01-17 | 2014-01-17 | A kind of wind generating unit based on direct piezoelectric effect |
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| Publication Number | Publication Date |
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| CN103758701A CN103758701A (en) | 2014-04-30 |
| CN103758701B true CN103758701B (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410022516.6A Expired - Fee Related CN103758701B (en) | 2014-01-17 | 2014-01-17 | A kind of wind generating unit based on direct piezoelectric effect |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111313754B (en) * | 2020-03-20 | 2022-06-07 | 吉林大学 | Bionic wind power generation array and wind power generation device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11303726A (en) * | 1998-04-23 | 1999-11-02 | Murata Mfg Co Ltd | Piezoelectric wind power generator |
| JP2005273644A (en) * | 2004-02-25 | 2005-10-06 | Taiheiyo Cement Corp | Wind power generator and wind power generating system |
| CN201433859Y (en) * | 2009-05-08 | 2010-03-31 | 昆明理工大学 | Minitype wind power generation device based on piezoelectric effect |
| CN102720639A (en) * | 2012-07-10 | 2012-10-10 | 山东理工大学 | Piezoelectric type wind power generation device |
| CN202818154U (en) * | 2012-08-15 | 2013-03-20 | 湖北文理学院 | Vertical stick type wind power piezoelectric generating set |
| CN203670105U (en) * | 2014-01-17 | 2014-06-25 | 吉林大学 | Wind power generation device based on direct piezoelectric effect |
-
2014
- 2014-01-17 CN CN201410022516.6A patent/CN103758701B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11303726A (en) * | 1998-04-23 | 1999-11-02 | Murata Mfg Co Ltd | Piezoelectric wind power generator |
| JP2005273644A (en) * | 2004-02-25 | 2005-10-06 | Taiheiyo Cement Corp | Wind power generator and wind power generating system |
| CN201433859Y (en) * | 2009-05-08 | 2010-03-31 | 昆明理工大学 | Minitype wind power generation device based on piezoelectric effect |
| CN102720639A (en) * | 2012-07-10 | 2012-10-10 | 山东理工大学 | Piezoelectric type wind power generation device |
| CN202818154U (en) * | 2012-08-15 | 2013-03-20 | 湖北文理学院 | Vertical stick type wind power piezoelectric generating set |
| CN203670105U (en) * | 2014-01-17 | 2014-06-25 | 吉林大学 | Wind power generation device based on direct piezoelectric effect |
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| CN103758701A (en) | 2014-04-30 |
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Granted publication date: 20160406 Termination date: 20170117 |