CN103758701A - Wind generating set based on direct piezoelectric effect - Google Patents
Wind generating set based on direct piezoelectric effect Download PDFInfo
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- CN103758701A CN103758701A CN201410022516.6A CN201410022516A CN103758701A CN 103758701 A CN103758701 A CN 103758701A CN 201410022516 A CN201410022516 A CN 201410022516A CN 103758701 A CN103758701 A CN 103758701A
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- force
- piezoelectric stack
- windward
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- wind
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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
Abstract
The invention discloses a wind generating set based on direct piezoelectric effect, comprising a windward member, a piezoelectric generating component and a subsequent processing circuit module. The wind generating set generates power from wind by combining wind energy utilization and piezoelectric power generation and has the advantages of simple structure, convenience in mounting, manufacturing and maintenance, low cost, high wind energy utilization rate, low start wind speed and the like.
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
The advantages such as that wind energy has is clean, cheap, renewable, reserves are large, utilize wind energy to generate electricity to have huge using value and good development prospect.At present, the major way of wind-power electricity generation is to utilize wind power generating set to generate electricity, and wind power generating set is mainly comprised of impeller, speed increaser, generator etc., 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, and unit contains the movement parts such as gear, bearing, transmission shaft, very high to these movement parts requirements, and maintain and repair methods is inconvenient.
Piezo-electric generating utilizes and produces electric energy after piezoelectric material deforms and realize generating, its have simple in structure, realize convenient, low cost and other advantages.Piezoelectric material is a kind of energy-saving environmental protection material, 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 provides a kind of wind generating unit based on direct piezoelectric effect in order to solve the problem that existing wind power generation device structure is complicated, installation and maintenance are difficult, cost is high.
The present invention is comprised 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 comprised of application of force bolt, pressing plate, cylinder body, base plate, flexural pivot, bulb upper cover, force-transmitting block, piezoelectric stack, described piezoelectric stack be by several identical piezo-electric sheets with mechanically connect and electricity on the Placement of series-parallel connection be formed by connecting; On cylinder body, offer several through holes that are uniformly distributed on same circumference, cylinder body is connected with base plate by lower end surface, and piezoelectric stack packs the through hole in cylinder body into, 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, offers blind hole on force-transmitting block; Flexural pivot, cylinder body and bulb upper cover form spherical hinge; Pressing plate is connected and fixed on flexural pivot, on pressing plate, offer be uniformly distributed on same circumference and with the corresponding tapped through hole of application of force bolt, application of force bolt screws in the tapped through hole on pressing plate, the smooth column part of application of force bolt screw rod inserts in the blind hole of force-transmitting block, and contacts bottom the bottom of application of force bolt and the blind hole of force-transmitting block; Subsequent process circuit module comprises rectification circuit, eliminator and mu balanced circuit, and the corresponding output terminal of a subsequent process circuit module and piezoelectric stack that connects of each piezoelectric stack is 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 to imitate Crown Structure and the bionical tree crown manufactured.
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, application of force bolt and force-transmitting block windward successively, by application of force bolt, piezoelectric stack is applied to precompression; Force-transmitting block and application of force bolt have limited pressing plate around the rotatablely moving of pivotal axis, and force-transmitting block makes piezoelectric stack only be subject to axial pressure; Because the parameter of field of wind-force changes and the coupled motions of part in field of wind-force windward constantly, act on the size of the axial pressure on piezoelectric stack in continuous variation, piezoelectric stack will ceaselessly be out of shape and continuous wave output electric energy; By subsequent process circuit module, make the final output voltage of piezoelectric stack substantially in stationary value; Subsequent process circuit module output terminal stacks up and externally output according to the corresponding identical electric energy that all piezoelectric stacks are produced that is connected in parallel of polarity.
Beneficial effect of the present invention:
1, the present invention simple in structure, easily manufacture I&M, cost is low;
2, in the present invention, connecting rod, flexural pivot and pressing plate form Yi Ge regulations and parameters mechanism, and wind-force is amplified, and have increased the output voltage of piezoelectric stack;
3, the part windward in the present invention produces coupled motions in field of wind-force, and this is the key factor that the axial pressure size of effect on piezoelectric stack constantly changes, and part makes that the wind energy utilization of device is high and to start wind speed 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; In piezoelectric stack principle, only bear 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 Overlay is best;
5, the present invention can realize wind-power electricity generation, the present invention can be used for to storage battery charge, grid-connected, directly connect load etc.
Accompanying drawing explanation
Fig. 1 is the present invention's schematic perspective view of 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 artificial manufacture of part 1 imitation pine tree Crown Structure forms 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 ends; Piezo-electric generating parts are comprised of application of force bolt 3, pressing plate 4, cylinder body 5, base plate 6, flexural pivot 7, bulb upper cover 8, force-transmitting block 9, piezoelectric stack 10, described piezoelectric stack 10 be by several identical piezo-electric sheets with mechanically connect and electricity on the Placement of series-parallel connection be formed by connecting; On cylinder body 5, offer eight through holes that are uniformly distributed on same circumference, cylinder body 5 is connected with base plate 6 by lower end surface, piezoelectric stack 10 packs the through hole in cylinder body 5 into, piezoelectric stack 10 lower end surfaces contact with the boss on base plate 6, force-transmitting block 9 is equipped with in the top of piezoelectric stack 10, offers blind hole 12 on force-transmitting block 9; 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, on pressing plate 4, offer be uniformly distributed on same circumference and with the corresponding tapped through hole of application of force bolt 3, the tapped through hole that application of force bolt 3 screws on pressing plate 4, the smooth column part of application of force bolt 3 screw rods inserts in the blind hole 12 of force-transmitting block 9, and the bottom of application of force bolt 3 contacts with blind hole 12 bottoms of force-transmitting block 9; Subsequent process circuit module 11 comprises rectification circuit, eliminator and mu balanced circuit, and the corresponding output terminal of a subsequent process circuit module 11 and piezoelectric stack 10 that connects of each piezoelectric stack 10 is 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, connecting rod 2, flexural pivot 7, pressing plate 4, application of force bolt 3 and force-transmitting block 9 windward successively, by 3 pairs of piezoelectric stacks 10 of application of force bolt, applies precompression; Force-transmitting block 9 and application of force bolt 3 have limited pressing plate 4 around the rotatablely moving of pivotal axis, and force-transmitting block 9 makes 10 of piezoelectric stacks be subject to axial pressure; Because the parameter of field of wind-force changes and the coupled motions of part 1 in field of wind-force windward constantly, act on the size of the axial pressure on piezoelectric stack 10 in continuous variation, piezoelectric stack 10 will ceaselessly be out of shape and continuous wave output electric energy; By subsequent process circuit module 11, make the final output voltage of piezoelectric stack 10 substantially in stationary value; Subsequent process circuit module 11 output terminals stack up and externally output according to the corresponding identical electric energy that all piezoelectric stacks 10 are produced that is connected in parallel of polarity.
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 to imitate Crown Structure and the bionical tree crown manufactured 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 comprised of application of force bolt (3), pressing plate (4), cylinder body (5), base plate (6), flexural pivot (7), bulb upper cover (8), force-transmitting block (9), piezoelectric stack (10), described piezoelectric stack (10) be by several identical piezo-electric sheets with mechanically connect and electricity on the Placement of series-parallel connection be formed by connecting; On cylinder body (5), offer several through holes that are uniformly distributed on same circumference, cylinder body (5) is connected with base plate (6) by lower end surface, piezoelectric stack (10) packs the through hole in cylinder body (5) into, 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), offers blind hole (12) on force-transmitting block (9); 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), on pressing plate (4), offer be uniformly distributed on same circumference and with the corresponding tapped through hole of application of force bolt (3), application of force bolt (3) screws in the tapped through hole on pressing plate (4), the smooth column part of application of force bolt (3) screw rod inserts in the blind hole (12) of force-transmitting block (9), and the bottom of application 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 the corresponding output terminal of a subsequent process circuit module (11) and piezoelectric stack (10) that connects of each piezoelectric stack (10) is 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.
2. according to a kind of wind generating unit based on direct piezoelectric effect described in right 1, it is characterized in that: described part windward (1) is bionical tree crown.
3. according to a kind of wind generating unit based on direct piezoelectric effect described in right 2, it 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 |
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| 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 true CN103758701A (en) | 2014-04-30 |
| CN103758701B CN103758701B (en) | 2016-04-06 |
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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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111313754A (en) * | 2020-03-20 | 2020-06-19 | 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111313754A (en) * | 2020-03-20 | 2020-06-19 | 吉林大学 | Bionic wind power generation array and wind power generation device |
| CN111313754B (en) * | 2020-03-20 | 2022-06-07 | 吉林大学 | Bionic wind power generation array and wind power generation device |
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| CN103758701B (en) | 2016-04-06 |
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Granted publication date: 20160406 Termination date: 20170117 |