CN207033642U - A kind of wave-energy power generation equipment - Google Patents
A kind of wave-energy power generation equipment Download PDFInfo
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- CN207033642U CN207033642U CN201720710155.3U CN201720710155U CN207033642U CN 207033642 U CN207033642 U CN 207033642U CN 201720710155 U CN201720710155 U CN 201720710155U CN 207033642 U CN207033642 U CN 207033642U
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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)
Abstract
The application is related to a kind of wave-energy power generation equipment, described wave-energy power generation equipment include frame, the swing mechanism that can be swung up and down around the shaft with wave motion being arranged in described frame, the electromagnetic power generation apparatus being evenly distributed on the circular arc of swing rod swing, be arranged on described swing mechanism both sides up and down piezoelectric generating device, described piezoelectric generating device includes the spring beam being fixed in frame, the piezoelectric film being fitted on spring beam.Wave-energy power generation equipment described herein, generated electricity using electromagnetism and Piezoelectric anisotropy, the low frequency up-down vibration of ocean wave is passed through into swing mechanism, piezoelectric generating device and electromagnetic power generation apparatus, it is converted into the high frequency free vibration and the motion of coil windings cutting magnetic induction line of piezoelectric elasticity beam, and then piezo-electric generating and Electromagnetic generation are carried out simultaneously, finally realize the high power density output of wave energy and higher energy conversion efficiency.
Description
Technical field
The application is related to a kind of wave-energy power generation equipment.
Background technology
At present, wave energy refers to kinetic energy and potential energy possessed by ocean surface wave, belongs to clean reproducible energy.The earth
Upper 70% area is covered by seawater, and ocean wave energy resource is huge, there is wide Development volue.Because the mankind are to the energy
Demand increasingly increase limited with non-regeneration energy reserves, nowadays increasing researcher has turned one's attention to ocean
Wave energy, promote the developmental research of wave energy.At present, most Wave energy conversion systems are by three-level energy transfer mechanism group
Into.Wherein, wave energy is converted into the mechanical energy of some carrier by one-level energy transfer mechanism (wave energy acquisition device).According to ripple
Wave energy collecting device, can be divided into point-absorbing, oscillaton water column type, raft formula and vibration by the Structure Mechanism of unrestrained energy harvester
It is swing.Secondary energy switching mechanism is transmission device, and the mechanical energy obtained by one-level energy conversion is delivered into TRT
In, its primary drive type has mechanical, pneumatic type and fluid pressure type.For different wave energy acquisition devices, Secondary energy
The transmission link of switching mechanism is not indispensable link, and the mechanism can be neglected.Three-level energy transfer mechanism is TRT, by two
Mechanical energy obtained by level energy conversion is converted to electric energy.According to the mechanism of TRT, energy conversion device can be divided into electricity
Magnetic-type, piezo-electric type and electromagnetism polymer-type.
At present, the device that can be integrated in collection wave energy in offshore set-up platform is relatively fewer.Existing apparatus can typically be adopted
With Electromagnetic generation and piezo-electric generating two types.Electromagnetic generation type application is most, typically uses spring oscillator structure.Carry flat
Platform is acted on up-down vibration by wave, is produced the magnet for being fixed on spring movable end and is forced to up-down vibration, is fixed on collection of energy
Induction coil cutting magnetic induction line on device produces electric energy output.Because ocean wave vibration has the characteristics of frequency is low, this electricity
The magnet vibration frequency of magnetic generated energy collection device is low so that the rate of change of magnetic flux is smaller, have impact on generating output.Piezoelectricity
Formula Wave energy collecting device is usually designed to cantilever beam structure, and most the low-frequency vibration of wave is converted into the high frequency vibrating of cantilever beam at last
It is dynamic, so as to export electric energy.However, how to design the dither that the low-frequency vibration of wave is efficiently converted into cantilever beam by device
It is a big difficult point of piezoelectric type Wave energy collecting device, governs the development of piezoelectric type Wave energy collecting device.Therefore, piezoelectric type
The development of Wave energy collecting device is less.
Utility model content
In order to solve the above technical problems, the purpose of the application is to provide a kind of wave-energy power generation equipment.
The application is related to a kind of wave-energy power generation equipment, described wave-energy power generation equipment include frame, be arranged at it is described
Frame on the swing mechanism that can be swung up and down around the shaft with wave motion, be arranged on described swing mechanism up and down
The piezoelectric generating device of both sides, described piezoelectric generating device include be fixed in frame spring beam, be fitted on spring beam
Piezoelectric film.
Preferably, described swing mechanism include with described frame rotated by rotating shaft the swing rod being connected, be arranged on
The mass for being used for the described spring beam of collision when swinging of the one end of described swing rod away from rotating shaft.
Preferably, described wave-energy power generation equipment also includes being used to described swing rod is maintained into water in no external force
The torsion spring that prosposition is put, one end of described torsion spring are fixed in frame, and the other end of torsion spring is fixed on swing rod, the torsion spring set
It is located in the rotating shaft.
Preferably, described spring beam is fixedly installed in frame in the horizontal direction, the both sides up and down of described spring beam
Piezoelectric film is pasted with, described spring beam has is not used for what is be in contact with described mass by what described piezoelectric film covered
End.
Preferably, the piezoelectric generating device of the both sides up and down of described swing mechanism is along swing rod setting symmetrical above and below.
Preferably, described wave-energy power generation equipment also includes electromagnetic power generation apparatus, and described electromagnetic power generation apparatus includes
The coil windings of remote described rotating shaft one end of the close described swing rod in frame, positioned at the coil windings center
Silicon steel sheet, positioned at described swing rod remote described rotating shaft one end permanent magnet array.
Preferably, described mass includes the sidepiece for being used to hit the spring beam for being positioned at upper and lower both sides, described
Receiving space is formed between the sidepiece of upper and lower both sides, described permanent magnet array is contained in described receiving space.
Preferably, described spring beam is made up of elastomeric material.
By such scheme, the application at least has advantages below：
Wave-energy power generation equipment described herein, the low frequency up-down vibration of ocean wave is passed through into swing mechanism and piezoelectricity
TRT, is converted into the high frequency free vibration of piezoelectric elasticity beam, and then carries out piezo-electric generating simultaneously, finally realizes wave energy
High power density exports and higher energy conversion efficiency.
Described above is only the general introduction of technical scheme, in order to better understand the technological means of the application,
And can be practiced according to the content of specification, below with the preferred embodiment of the application and coordinate accompanying drawing describe in detail as after.
Brief description of the drawings
Fig. 1 is a kind of structural representation of wave-energy power generation equipment described herein；
Fig. 2 is the structural representation that wave-energy power generation equipment described herein is arranged on carrying platform,
Wherein：1st, frame；2nd, piezoelectric generating device；21st, spring beam；22nd, piezoelectric film；31st, swing rod；32nd, mass；33、
Permanent magnet array；4th, coil windings；5th, rotating shaft；6th, torsion spring；100th, wave-energy power generation equipment；200th, carrying platform.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the application is described in further detail.Implement below
Example is used to illustrate the application, but is not limited to scope of the present application.
As illustrated, the application is related to a kind of wave-energy power generation equipment, described wave-energy power generation equipment includes frame, set
The swing mechanism that can be swung up and down around the shaft with wave motion that is placed in described frame, it is arranged on described oscillating machine
The piezoelectric generating device of the both sides up and down of structure, the piezoelectric generating devices of the both sides up and down of described swing mechanism is along right above and below swing rod
The setting of title.Described piezoelectric generating device includes the spring beam being fixed in frame, the piezoelectric film being fitted on spring beam, institute
The spring beam stated is made up of elastomeric material, such as silicon substrate, Metal Substrate, polymer matrix.Described swing mechanism include with it is described
Frame by rotating shaft rotate connection swing rod, be arranged on the described one end of swing rod away from rotating shaft and be used to colliding when swinging
The mass of described spring beam.Described wave-energy power generation equipment also includes being used to tie up described swing rod in no external force
The torsion spring in horizontal level is held, one end of described torsion spring is fixed in frame, and the other end of torsion spring is fixed on swing rod.It is described
Spring beam be fixedly installed in the horizontal direction in frame, the both sides up and down of described spring beam are pasted with piezoelectric film, described
Spring beam have not by described piezoelectric film cover for the end that is in contact with described mass.Ripple described herein
Wave energy for generating electricity equipment, by the low frequency up-down vibration of ocean wave by swing mechanism and piezoelectric generating device, it is converted into piezoelectricity bullet
Property beam high frequency free vibration, and then carry out piezo-electric generating simultaneously, finally realize the high power density output of wave energy and higher
Energy conversion efficiency.
Described wave-energy power generation equipment also includes electromagnetic power generation apparatus, and described electromagnetic power generation apparatus includes being located at frame
On the coil windings of remote described rotating shaft one end of close described swing rod, the silicon steel positioned at the coil windings center
Piece, positioned at described swing rod remote described rotating shaft one end permanent magnet array.Described mass is included positioned at up and down
The sidepiece for being used to hit the spring beam for being of both sides, forms receiving space between the sidepiece of described both sides up and down, it is described forever
Magnet array is contained in described receiving space.
This generating equipment can be finally arranged on inside carrying platform.Carrying platform can be marine buoy, ROV etc.
Equipment.Carrying platform under wave action, produces up-down vibration, this generating equipment is again by the energy of the up-down vibration of carrying platform
Amount is collected, and wave energy indirectly is converted into electric energy.
The operation principle of the application is as follows：
This generating equipment is arranged on inside carrying platform, when static, by setting the initial settling angle degree position of torsion spring,
Under the mass gravity of swing rod end and the effect of the moment of torsion of the torque of permanent magnet array gravity countershaft and torsion spring, make at swing rod
In horizontal level, i.e. vibration balancing position.Under wave effect of vibration, carrying platform up-down vibration therewith, now swing rod produce
Forced vibration, permanent magnet array swing and produce relative displacement with coil windings around the shaft, pass through Faraday's electromagnetic induction law
Produce induced electromotive force；Meanwhile during swing rod swing, swing rod end mass block will contact with the spring beam end of upper and lower both sides,
Spring beam is produced deflection deformation, accumulate elastic potential energy, then separated with spring beam, make spring beam generation is high-frequency freely to shake
Dynamic, the piezoelectric film on spring beam is extended and compressed by corresponding frequencies, is produced electromotive force by piezo-electric effect, is exported with greater efficiency
Electric energy.So, the present apparatus utilizes Electromagnetic generation and piezoelectric generation module simultaneously, expeditiously by between the energy of wave up-down vibration
Switch through and turn to electric energy.
Be horizontal in swing rod, i.e., vibration balancing position when, R θ 0=mgL, wherein, m is mass and permanent magnet
The quality of array and, g is acceleration of gravity, and L is mass center of gravity to the distance for swinging gyroaxis, R for torsion spring the elasticity of torsion
Coefficient, θ 0 are initial windup-degree of the torsion spring at equilbrium position.By the initial settling angle degree position for adjusting torsion spring so that pendulum
Bar is horizontal under the torque of mass gravity countershaft and the collective effect of torsion spring torque.
Generating equipment described herein can be according to conditions such as the frequency of wave vibration, amplitudes, by changing mass
Quality, the length of swing rod and the coefficient of elasticity of torsion spring, to realize the optimization of service behaviour.It is special according to the piezoelectricity of piezoelectric
Property, the frequency for applying external force has a direct impact to the efficiency of piezoelectric output electric energy.Can be special according to piezoelectricity membrane material piezoelectricity
Property design piezoelectric elasticity beam, make its free running frequency meet piezoelectric film high efficiency piezoelectricity electric energy output.
Electromagnetic generation part utilizes electromagnetic induction principle, and reciprocal pendulum occurs under swing rod effect of reciprocating vibration for permanent magnet array
It is dynamic, magnetic force line cutting winding coil, change over time the magnetic flux size of winding coil, so as to produce induced electromotive force.Root
According to Faraday's electromagnetic induction law, electric energy output is relevant with variation rate of magnetic flux.Addition silicon steel sheet is rationally set, reaches poly- magnetic effect
Fruit, it is possible to increase variation rate of magnetic flux, it is final to increase electric energy output.
Described above is only the preferred embodiment of the application, is not limited to the application, it is noted that for this skill
For the those of ordinary skill in art field, on the premise of present techniques principle is not departed from, can also make it is some improvement and
Modification, these improvement and modification also should be regarded as the protection domain of the application.
Claims (6)
- A kind of 1. wave-energy power generation equipment, it is characterised in that：Described wave-energy power generation equipment include frame, be arranged at it is described The swing mechanism that can be swung up and down around the shaft with wave motion in frame, be arranged on described swing mechanism up and down two The piezoelectric generating device of side, described piezoelectric generating device include be fixed in frame spring beam, be fitted on spring beam Piezoelectric film, described swing mechanism include with described frame rotated by rotating shaft the swing rod being connected, be arranged on described pendulum The mass for being used for the described spring beam of collision when swinging of the one end of bar away from rotating shaft, described wave-energy power generation equipment is also Including the torsion spring for described swing rod to be maintained to horizontal level in no external force, one end of described torsion spring is fixed on machine On frame, the other end of torsion spring is fixed on swing rod.
- A kind of 2. wave-energy power generation equipment according to claim 1, it is characterised in that：Described spring beam is in the horizontal direction It is fixedly installed in frame, the both sides up and down of described spring beam are pasted with piezoelectric film, and described spring beam has not described Piezoelectric film covering for the end that is in contact with described mass.
- A kind of 3. wave-energy power generation equipment according to claim 1, it is characterised in that：Up and down the two of described swing mechanism The piezoelectric generating device of side is along swing rod setting symmetrical above and below.
- A kind of 4. wave-energy power generation equipment according to claim 1, it is characterised in that：Described wave-energy power generation equipment is also Including electromagnetic power generation apparatus, described electromagnetic power generation apparatus includes the remote described of the close described swing rod in frame The coil windings of rotating shaft one end, positioned at described swing rod remote described rotating shaft one end permanent magnet array.
- A kind of 5. wave-energy power generation equipment according to claim 4, it is characterised in that：Described mass is included positioned at upper The sidepiece for being used to hit described spring beam of lower both sides, receiving space is formed between the sidepiece of described both sides up and down, it is described Permanent magnet array be contained in described receiving space.
- A kind of 6. wave-energy power generation equipment according to claim 1, it is characterised in that：Described spring beam is elastomeric material It is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720710155.3U CN207033642U (en) | 2017-06-19 | 2017-06-19 | A kind of wave-energy power generation equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720710155.3U CN207033642U (en) | 2017-06-19 | 2017-06-19 | A kind of wave-energy power generation equipment |
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| CN207033642U true CN207033642U (en) | 2018-02-23 |
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| CN201720710155.3U Active CN207033642U (en) | 2017-06-19 | 2017-06-19 | A kind of wave-energy power generation equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191312A (en) * | 2017-06-19 | 2017-09-22 | 苏州大学 | A kind of wave-energy power generation equipment |
| CN109167532A (en) * | 2018-10-22 | 2019-01-08 | 西南交通大学 | A kind of automobile inertial energy piezoelectric type acquisition device |
| CN110198145A (en) * | 2019-06-27 | 2019-09-03 | 西北工业大学 | Multistable vibrational energy captures structure |
| CN115276462A (en) * | 2022-08-18 | 2022-11-01 | 北京纳米能源与系统研究所 | Compound generator for collecting wave energy based on friction power generation and electromagnetic power generation |
-
2017
- 2017-06-19 CN CN201720710155.3U patent/CN207033642U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191312A (en) * | 2017-06-19 | 2017-09-22 | 苏州大学 | A kind of wave-energy power generation equipment |
| CN107191312B (en) * | 2017-06-19 | 2023-10-27 | 苏州大学 | Wave energy power generation equipment |
| CN109167532A (en) * | 2018-10-22 | 2019-01-08 | 西南交通大学 | A kind of automobile inertial energy piezoelectric type acquisition device |
| CN110198145A (en) * | 2019-06-27 | 2019-09-03 | 西北工业大学 | Multistable vibrational energy captures structure |
| CN110198145B (en) * | 2019-06-27 | 2020-05-01 | 西北工业大学 | Multistable vibration energy trapping structure |
| CN115276462A (en) * | 2022-08-18 | 2022-11-01 | 北京纳米能源与系统研究所 | Compound generator for collecting wave energy based on friction power generation and electromagnetic power generation |
| CN115276462B (en) * | 2022-08-18 | 2023-08-11 | 北京纳米能源与系统研究所 | Composite generator for collecting wave energy based on friction power generation and electromagnetic power generation |
| WO2024036925A1 (en) * | 2022-08-18 | 2024-02-22 | 北京纳米能源与系统研究所 | Composite generator for collecting wave energy based on friction power generation and electromagnetic power generation |
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