CN107605647B - A kind of novel swing wave energy piezoelectric generating device - Google Patents
A kind of novel swing wave energy piezoelectric generating device Download PDFInfo
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- CN107605647B CN107605647B CN201711075234.2A CN201711075234A CN107605647B CN 107605647 B CN107605647 B CN 107605647B CN 201711075234 A CN201711075234 A CN 201711075234A CN 107605647 B CN107605647 B CN 107605647B
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- ceramic piece
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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
- Y02E10/20—Hydro energy
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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
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention discloses a kind of novel swing wave energy piezoelectric generating devices.Oceanographic observation field is related generally to, solving the problems, such as conventional power generation device, structure is complicated, capacity usage ratio is low, at high cost.The present apparatus includes: power generator, upper pendular body and bottom kinetoplast three parts；The power generator includes: rotor portion, piezoelectric ceramic piece, stationary part, ceramic bearing, conducting slip ring, shaft；The upper pendular body is connected similar to propeller arrangement, with stationary part by screw thread；The bottom kinetoplast is with upper pendular body placement direction on the contrary, being connected with rotor portion by screw thread；Present apparatus feature is: the rotor portion is mutually collided with piezoelectric ceramic piece, and piezoelectric ceramic piece generates vibration to generate electricity；The body blade drift angle that swings up and down is positive and negative 14 degree, larger to the component perpendicular to direction blade by water, it is easy to accomplish to swing up and down the periodic reverse circular motion that body carries out opposite direction；The present apparatus do not generate heat, without electromagnetic interference, pollution-free.
Description
Technical field
The invention mainly relates to oceanographic observation fields, and in particular to a kind of novel swing piezo-electric generating based on wave energy
Device can be the devices continued powers such as sensor on floating body.
Background technique
Wave-energy power generation (Wave Power Generation) is using the energy of wave as power generation electric energy.Ocean wave
Wave contains huge energy, the power P ≈ HT kW/m of the sinusoidal every metric wave peak width of wave.In formula, H is wave height, and unit is rice
(m)；T is wave period, and unit is (s).The energy of wave can be converted to by certain device mechanical, air pressure or hydraulic
Then energy passes through transmission mechanism, gas-turbine, the hydraulic turbine or the power generation of hydraulic motor driven generator.There is economic value in the whole world
Wave energy yield is estimated as 1~1,000,000,000 kW.The theoretical reserves of Chinese wave energy are 70,000,000 kW or so.
Pneumatic type power generation is one kind of wave-energy power generation, and wave energy is converted into sky by pump devices such as gas chamber, airbags
Gas energy, then the mode to be generated electricity by turbine machine driving generator.Pneumatic type electrification structure is complicated, and maintenance and installation cost are higher.
Hydraulic power generating is also one kind of wave-energy power generation, converts wave energy into liquid (oil by certain liquid pumping device
Or seawater) pressure energy or position can, then the mode to be generated electricity by hydraulic motor or water wheels machine driving generator.Hydraulic power generating is general only
It acts on the water surface, and the capacity usage ratio of liquid pumping device and hydraulic motor is lower, fixed and installation is more difficult.
The one kind of mechanical power generation as wave-energy power generation, by certain transmission mechanism realization wave energy from reciprocating to
The transmitting of unidirectional rotary motion carrys out the mode of driven generator power generation.Old-fashioned mechanical power generation is mostly be using rack gear, gear and
The mechanical device of ratchet, often structure is cumbersome, and reliability is not strong.And traditional mechanical cost of electricity-generating is higher.But it is novel
Using swing type piezoelectric generating device structure it is simple, energy utilization efficiency is high, safeguard and place it is at low cost, be easily achieved.
Summary of the invention
The purpose of the present invention is to provide it is a kind of it is at low cost, energy utilization efficiency is high, structure is simple, high reliablity, without dirt
The novel swing piezoelectric generating device based on wave energy of dye and service life length.
The technical solution adopted by the present invention is that: a kind of novel swing piezoelectric generating device based on wave energy, the present apparatus
It include: power generator, upper pendular body and bottom kinetoplast three parts.
The power generator includes: rotor portion, piezoelectric ceramic piece, stationary part, ceramic bearing, conducting slip ring, shaft；
The rotor portion includes: transmission shaft, rotor, torsional spring；The stationary part includes: stator, cylinder, end cap, sleeve；The biography
Moving axis and rotor concentric are arranged, are connected by flat key；The one end of torsional spring is fixed on transmission shaft, and the other end is fixed on set
On cylinder；The piezoelectric ceramic piece is located at extension end two sides in stator, is connected with stator by screw；The stator and cylinder into
Row interference fit, under be partially submerged into cylinder, upper part is in contact with ceramic bearing outer ring, realizes the fastening and positioning of stator；
One end-coil of conducting slip ring is connected with piezoelectric ceramic piece, and another end-coil is connected with cable；The end cap is located at circle
Cylinder top and bottom end, are connected by screw with cylinder；The shaft is located at power generator upper end, passes through cable and hull phase
Even；
There are six blade, similar propeller arrangement is connected with cylinder by screw thread the upper pendular body tool；
The bottom kinetoplast equally has there are six blade, and direction blade and upper pendular body direction blade are on the contrary, and transmission shaft
It is connected by screw thread；
The periodic reverse for swinging up and down body and switching to opposite direction by periodical linear motion up and down with wave heave
Circular motion drives piezoelectric ceramic piece and rotor cycle on stator to collide generation vibration and generates electricity.
It is further characterized in that the body blade drift angle that swings up and down is positive and negative 14 degree, by water to perpendicular to blade
The component in direction is larger, it is easy to accomplish swings up and down the periodic reverse circular motion that body carries out opposite direction.
It is further characterized in that the rotor is transported in stator with the periodic reverse circumference that pendular body carries out opposite direction
It when dynamic, is mutually collided with piezoelectric ceramic piece, piezoelectric ceramic piece generates vibration to generate electricity, and present apparatus piezoelectric ceramic piece is using series connection
Connection type.
The advantages of present apparatus, is:
1. present apparatus manufacture, placement and maintenance cost are lower, energy utilization efficiency is high, and structure is simple and realizes integrated reason
It reads.
2. the present apparatus is based on wave energy, gone up and down with wave, by periodically linear motion switchs to periodical opposite direction up and down
Periodic reverse circular motion, the frequency and dynamics that piezoelectric ceramic piece is hit by rotor are larger, and then power generator is reliable
Property it is high.
3. the present apparatus has the characteristics that not generate heat during carrying out piezo-electric generating, without electromagnetic interference, free of contamination.
4. the present apparatus has good corrosion resistance, long service life, and recoverable.
Detailed description of the invention
The present invention will be further explained below with reference to the accompanying drawings, in attached drawing:
Fig. 1 is a kind of novel swing piezoelectric generating device general illustration based on wave energy of the present invention；
Fig. 2 is a kind of novel swing piezoelectric generating device structural schematic diagram based on wave energy of the present invention；
Fig. 3 is that body force analysis figure is swung up and down in the present invention；
Fig. 4 is the structural schematic diagram of power generator in the present invention；
Fig. 5 is electricity generating principle schematic diagram in the present invention；
Wherein: 1, hull, 2, cable, 3, power generator, 4, upper pendular body, 5, bottom kinetoplast, 6, transmission shaft, 7, lower end
Lid, 8, ceramic bearing A, 9, rotor, 10, piezoelectric ceramic piece, 11, stator, 12, ceramic bearing B, 13, short sleeve, 14, torsional spring,
15, long sleeve, 16, conducting slip ring, 17, shaft, 18, ceramic bearing C, 19, upper end cover, 20, cylinder.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
Referring to Fig. 1-Fig. 2-Fig. 3, hull 1 is connected by cable with present apparatus shaft 17.When hull 1 is mobile to wave crest
When, drive the present apparatus to move up by cable 2, because there is directed force F aO straight down to upper 4 blade of pendular body in water,
FaO can be decomposed into the power F0 perpendicular to blade, along the power Fa of blade, F0 is decomposed into the component F1 in horizontal direction, with
And on vertical direction and component F2 that direction is downward, under the action of F1, upper pendular body is rotated counterclockwise.Upper pendular body with
Cylinder 20 is connected by screw, and stator 11 is interference fitted with cylinder, and is embedded into cylinder, and upper pendular body drives stator
It is rotated counterclockwise.
Equally when hull 1 is mobile to wave crest, the present apparatus is driven to move up by cable 2, since water is to bottom kinetoplast 5
There is directed force F b3 straight down in blade, Fb3 can be decomposed into the power F3 perpendicular to blade, along the power Fb of blade, by F3
It is decomposed into the downward component F5 on component F4 and the vertical direction in horizontal direction and direction, under the action of F4, lower swing
Body is rotated clockwise.Bottom kinetoplast is connected through a screw thread with transmission shaft 6, and transmission shaft is attached with rotor 9 by flat key,
Bottom kinetoplast drives rotor to carry out rotationally clockwise.
When hull 1 is moved to trough, due to gravity, the present apparatus is moved down, and moves phase to wave crest with hull
Together, to body progress force analysis is swung up and down, similarly it is found that because there is effect straight up to upper 4 blade of pendular body in water
This active force is equally carried out power decomposition by power, and upper pendular body carries out rotationally clockwise, and bottom kinetoplast 5 is due to by side
To opposite effect power, rotated in an anti-clockwise direction.Upper pendular body is connected with cylinder 20 by screw, stator 11 and cylinder
It is interference fitted, and is embedded into cylinder, upper pendular body drives stator to carry out rotationally clockwise.Bottom kinetoplast and transmission
Axis 6 is connected through a screw thread, and transmission shaft is attached with rotor 9 by flat key, and bottom kinetoplast drives rotor to carry out counterclockwise
Rotation.
- Fig. 5 referring to fig. 4, in wave crest and trough situation, when stator 11 and rotor 9 are under the action of swinging up and down body, into
When the relative motion of row opposite direction, rotor constantly hits piezoelectric ceramic piece 10, to make piezoelectric ceramic piece generate vibration, in turn
Power generation.Torsional spring is added on transmission shaft, increases torque in rotation, and then increase power generator reliability.
In the present invention, piezoelectric ceramic piece uses concatenated mode, and the transmitting of electric current is carried out using conducting slip ring 16.Conduction is sliding
Ring one end is connect with piezoelectric ceramic piece, and one section is connected with cable.To be powered for device on floating body.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (3)
1. a kind of novel swing piezoelectric generating device based on wave energy, the present apparatus include: power generator, upper pendular body and under
Pendular body three parts, the power generator include: rotor portion, piezoelectric ceramic piece, stationary part, ceramic bearing, conducting slip ring,
Shaft；The rotor portion includes: transmission shaft, rotor, torsional spring；The stationary part includes: stator, cylinder, end cap, sleeve；
The transmission shaft and rotor concentric are arranged, are connected by flat key；
The one end of torsional spring is fixed on transmission shaft, and the other end is fixed on sleeve；
The piezoelectric ceramic piece is located at extension end two sides in stator, is connected with stator by screw；
The stator is interference fitted with cylinder, under be partially submerged into cylinder, upper part is in contact with ceramic bearing outer ring, real
The fastening and positioning of existing stator；
One end-coil of conducting slip ring is connected with piezoelectric ceramic piece, and another end-coil is connected with cable；
The end cap is located at cylinder top and bottom end, is connected by screw with cylinder；
The shaft is located at power generator upper end, is connected by cable with hull；
There are six blade, similar propeller arrangement is connected with cylinder by screw thread the upper pendular body tool；
The bottom kinetoplast equally has there are six blade, and direction blade is with upper pendular body direction blade on the contrary, passing through with transmission shaft
Screw thread is connected；
The periodic reverse circumference for swinging up and down body and switching to opposite direction by periodical linear motion up and down with wave heave
Movement drives piezoelectric ceramic piece and rotor cycle on stator to collide generation vibration and generates electricity, this generation mode energy benefit
With efficiency it is higher, do not generate heat, without electromagnetic interference, pollution-free.
2. the novel swing piezoelectric generating device based on wave energy according to claim 1, it is characterised in that: above and below described
Pendular body blade drift angle is positive and negative 14 degree, larger to the component perpendicular to direction blade by water, it is easy to accomplish to swing up and down body
Carry out the periodic reverse circular motion of opposite direction.
3. the novel swing piezoelectric generating device based on wave energy according to claim 1, it is characterised in that: the rotor
It when stator carries out the periodic reverse circular motion of opposite direction with pendular body, is mutually collided with piezoelectric ceramic piece, piezoelectricity pottery
Tile generates vibration to generate electricity, and present apparatus piezoelectric ceramic piece uses series connection mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711075234.2A CN107605647B (en) | 2017-11-02 | 2017-11-02 | A kind of novel swing wave energy piezoelectric generating device |
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| CN201711075234.2A CN107605647B (en) | 2017-11-02 | 2017-11-02 | A kind of novel swing wave energy piezoelectric generating device |
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| CN107605647B true CN107605647B (en) | 2019-05-07 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108443051B (en) * | 2018-03-20 | 2020-09-11 | 天津工业大学 | Novel high-efficient sealed wave energy power generation device |
| CN108757291B (en) * | 2018-06-28 | 2023-09-19 | 南京信息工程大学 | Wave energy power generation device applied to unmanned ship |
| CN109185029A (en) * | 2018-09-17 | 2019-01-11 | 中国海洋大学 | A kind of power generator using wave energy |
| CN109617315B (en) * | 2019-01-16 | 2020-01-21 | 张志刚 | Mechanism for converting two-dimensional irregular movement into rotation |
| CN111779616A (en) * | 2020-07-02 | 2020-10-16 | 广东电网有限责任公司 | Wave power generation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8294336B2 (en) * | 2005-10-18 | 2012-10-23 | Board Of Regents, The University Of Texas Systems | Piezoelectric windmill apparatus |
| RU2392485C1 (en) * | 2008-12-23 | 2010-06-20 | Государственное образовательное учреждение высшего профессионального образования Читинский государственный университет (ЧитГУ) | Fluid medium energy using device |
| CN102332843B (en) * | 2011-09-16 | 2013-11-06 | 大连理工大学 | Symmetric rotation piezoelectric generation device |
| CN102878005B (en) * | 2012-10-08 | 2016-12-21 | 胡勇坚 | Pneumatic rubber bellows sea wave energy electromotor |
| CN203009151U (en) * | 2012-12-12 | 2013-06-19 | 山东科技大学 | Small piezoelectric type wave power generation device |
| CN103312216B (en) * | 2013-06-06 | 2015-09-16 | 中山大学 | A kind of fluid piezoelectric generating device and device group |
| CN105332851B (en) * | 2015-11-04 | 2018-04-17 | 中国人民解放军国防科学技术大学 | Wave energy converting device based on adaptive spacing wing plate |
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Inventor after: Sun Xiujun Inventor after: Sang Hongqiang Inventor after: You Yusong Inventor after: Li Can Inventor after: Zhang Xingui Inventor after: Zhang Wengang Inventor after: Zhang Xinjian Inventor after: Guan Haipeng Inventor before: Sang Hongqiang Inventor before: You Yusong Inventor before: Li Can Inventor before: Zhang Xingui Inventor before: Zhang Wengang Inventor before: Zhang Xinjian Inventor before: Guan Haipeng |