CN104362899A - Wave-energy piezoelectric power generation device based on fixed frequency and natural vibration - Google Patents
Wave-energy piezoelectric power generation device based on fixed frequency and natural vibration Download PDFInfo
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- CN104362899A CN104362899A CN201410625565.9A CN201410625565A CN104362899A CN 104362899 A CN104362899 A CN 104362899A CN 201410625565 A CN201410625565 A CN 201410625565A CN 104362899 A CN104362899 A CN 104362899A
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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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Abstract
The invention discloses a wave-energy piezoelectric power generation device based on fixed frequency and natural vibration. The wave-energy piezoelectric power generation device is characterized in that the wave-energy piezoelectric power generation device comprises a power generation device body (1) and a fixing device (2) used for fixing the power generation device body to the sea surface; the power generation device body comprises a spindle (3), the spindle (3) is provided with an upper water stop plate (4) and a lower water stop plate (5), and the upper water stop plate (4) and the lower water stop plate (5) penetrate the spindle (3) and are fixed to the spindle (3) through an upper fixing bearing (6) and a lower fixing bearing (7) respectively. The wave-energy piezoelectric power generation device has the advantages of capability of achieving fixed-frequency conversion of wave energy simply and effectively, remarkable environmental and economic benefits, simple structure, low cost, capability of being produced massively and capability of being widely applied to the wave energy power generation industry and the production field of products such as beacon lights to realize commercial development.
Description
Technical field
The present invention relates to a kind of wave energy piezoelectric generating device based on determining frequency self-vibration, belonging to technical field of new energies.
Background technology
Along with the approach exhaustion of traditional energy and the day by day fragile of biological environment, and worldwide energy-saving and emission-reduction requirement, developing cleaning new energy becomes one of current of paramount importance advanced subject of the mankind.Reserves are large, have a very wide distribution, producing level is low, clean clean wave energy becomes one of focus that new energy development utilizes.
The of paramount importance limiting factor that wave energy is difficult to be fully utilized is the characteristic of its mixing.Wave is not single-frequency, but is mixed by the wave of different frequency.The wave frequencies in Deposits in Eastern Coastal China area is between 0.1 ~ 0.5Hz, the generating frequency of conventional wave wave energy generating set is decided by wave frequencies, and the electric energy frequency be applied in actual production life is fixing, this carries out frequency conversion or filtering with regard to needing the electric energy to wave-energy power generation obtains.People achieve wave energy by physical means such as electricity and surely to take place frequently electricity, but frequency conversion or filter arrangement cost very high, the industrialization being not easy to wave energy is produced.How simply, realize the wave energy electricity that surely takes place frequently economically and become top priority.
Summary of the invention
Technical problem to be solved by this invention is, one is provided not use frequency conversion or filter arrangement, what just the wave-energy power generation mode of hybrid frequency can be converted into wave energy determines frequency generation mode, and what achieve wave energy determines frequency exploitation, effectively reduces the cost of wave-energy power generation process medium frequency conversion; Further, the present invention utilizes U-shaped bimorph cantilever generating beam to replace common yi word pattern cantilever beam, can effectively improve electricity collection and generating efficiency, increase generated output; Further, the present invention adopts advanced U-shaped piezoelectric ceramic to be affixed on outside cantilever generating beam, can produce more electric energy, improve electric energy and collect efficiency.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
Based on the wave energy piezoelectric generating device determining frequency self-vibration, it is characterized in that: comprising: Blast Furnace Top Gas Recovery Turbine Unit (TRT) and for described Blast Furnace Top Gas Recovery Turbine Unit (TRT) being fixed on the fixture on sea, described Blast Furnace Top Gas Recovery Turbine Unit (TRT) comprises main shaft, described main shaft is provided with water fender and lower water fender, described upper water fender and lower water fender are all fixed on described main shaft through described main shaft respectively by upper rigid bearing and lower rigid bearing, described main shaft comprises interior axle and length is less than described interior axle and is coated on the outer shaft outside described interior axle, described outer shaft lower end is fixedly connected with vibration float, the upper surface of described vibration float is close to and is arranged lower retaining collar, described lower retaining collar is fixedly installed on described outer shaft, the two ends of described lower rigid bearing are symmetrically arranged with retaining collar and described lower retaining collar, be positioned on the described outer shaft above lower retaining collar and be provided with permanent magnet, the surrounding of described permanent magnet is provided with some cantilevers generating beam, one end of described cantilever generating beam is through inner casing, the airtight outside being fixed on described upper water fender and lower water fender of described inner casing, described inner casing is outside equipped with shell, the surrounding of described shell is provided with some fixing floats.
Described permanent magnet and upper retaining collar are all arranged between described upper water fender and lower water fender.
Described outer shaft can drive described lower retaining collar, upper retaining collar, permanent magnet and vibration float under wave action, pumps.
Described interior axle, upper water fender and lower water fender all maintain static, described lower retaining collar and upper retaining collar are for limiting the range of movement of described outer shaft, when outer shaft moves upward, the amplitude that outer shaft moves upward is limited by lower retaining collar, when outer shaft moves downward, limit by upper retaining collar the amplitude that outer shaft moves downward, described vibration float, for bearing the fluctuation of wave, drives outer shaft, lower retaining collar, upper retaining collar and permanent magnet to move along with the motion of wave.
The described interior axis limit radial motion direction of outer shaft.
Described upper water fender is fixed on described interior axle, described lower water fender is fixed on described outer shaft, time static, the distance of the top of described outer shaft and the lower surface of upper rigid bearing is greater than described lower retaining collar or the distance between upper retaining collar and described lower rigid bearing.
The all airtight connection in two ends up and down of described inner casing and shell, is provided with the dividing plate prevented into water above described shell.
The top of described interior axle is fixedly connected with described dividing plate.
Described permanent magnet comprises circular permanent magnet.
Described circular permanent magnet comprises n-shaped body of stainless steel and N number of first square magnet, and described n-shaped body of stainless steel has N number of first socket, and described first square magnet is arranged on described first spigot, and described circular permanent magnet passes and is fixed on described outer shaft.
Described cantilever generating beam comprises U-shaped bimorph cantilever generating beam, described U-shaped bimorph cantilever generating beam comprises U-shaped piezoelectric ceramic, U-shaped body of stainless steel and the second square magnet, described U-shaped piezoelectric ceramic is attached to the outside of U-shaped body of stainless steel, described U-shaped body of stainless steel one end is provided with the second socket, described second square magnet is arranged on described second spigot, described U-shaped piezoelectric ceramic is externally connected with electric wire, describedly be wired to electrical storage device, the electric energy of generation is pooled to described electrical storage device, the number of described cantilever generating beam is N number of, described second square magnet and described first square magnet just right, the opposite end of described second square magnet through described inner casing and with described inner casing compact siro spinning technology.
Describedly N number ofly be at least 4.
The U-type groove of described U-shaped bimorph cantilever generating beam is positioned at below, and U-shaped two ends are positioned at top and place and be positioned at same level with described circular permanent magnet, i.e. U-shaped opening upwards.
Described vibration float comprises upper cylinder and the lower cylinder of one connection, described upper cylinder upper surface and lower retaining collar compact siro spinning technology, the diameter of described upper cylinder is less than the diameter of described lower cylinder, and the diameter of described lower cylinder is less than or equal to the internal diameter of described inner casing.
Described fixing float is fixedly connected with described shell, and described fixing float is connected with described fixture, and the number of described fixing float is at least 3.
Described fixture comprises anchor chain and fixing anchor cable, and described fixing float bottom connects described anchor chain, and the described anchor chain other end is connected with described fixing anchor cable, and described fixing anchor cable is fixed on seabed, described Blast Furnace Top Gas Recovery Turbine Unit (TRT) is fixed across the sea.
Operation principle of the present invention is: the present invention's moving up and down by wave, drive vibration float with wave up-down vibration, the outer shaft that vibration float connects drives circular permanent magnet to move up and down, the free end of U-shaped bimorph cantilever generating beam (one end namely do not fixed with inner casing is given by magnetic force, that is the second square magnet end) initial load, U-shaped bimorph cantilever generating beam, according to the natural frequency of vibration (fixed frequency) vibration, makes U-shaped bimorph cantilever generating beam entirety strain.And the fixed frequency with self is vibrated, namely available from vibration frequency, this frequency, when size, cross section, material are certain, are a definite value, thus variable-frequency power generation is converted into the electricity that surely takes place frequently.According to piezoelectric principle, cloth piezoelectric patches on a cantilever beam utilizes determining frequency strain and just can to realize surely taking place frequently electric target on cantilever beam.Initial load makes described U-shaped bimorph cantilever generating beam generation deformation, and the energy that this deformation produces, is collected by the piezoelectric ceramic be attached to outside variable shaped beam, thus utilize.
A kind of wave energy piezoelectric generating device based on determining frequency self-vibration provided by the invention, outer shaft drives permanent magnet to pump with wave, the U-shaped bimorph cantilever beam that generates electricity is made to produce deformation when the pumping of wave by magnetic force, have and can indirectly make wave energy conversion be the advantage of electric energy, again the wave energy of different frequency is carried out frequency conversion, be fixed the electric energy of frequency, greatly reduce the sky high cost being carried out frequency conversion or filtering by physical means, improve the value of Blast Furnace Top Gas Recovery Turbine Unit (TRT); The imagination proposing wave energy piezoelectric generating device of initiative of the present invention, by cantilever beam, self-vibration characteristic and piezo-electric generating technology effective combine frequently surely, by the attribute of change structure self, what make the wave-energy power generation mode of hybrid frequency be converted into wave energy determines frequency generation mode, what achieve wave energy determines frequency exploitation, effectively reduces the cost of wave-energy power generation process medium frequency conversion; U-shaped bimorph cantilever generating beam is utilized to replace common yi word pattern cantilever beam, effectively improve electricity collection and generating efficiency, increase generated output, and the wave energy obtained is renewable, that gets is too late, nexhaustible, cheap, gradually exhausted in global energy, under the historical background that ambient pressure is day by day heavy, make full use of the new trend that wave energy is development; The setting of circular permanent magnet and U-shaped bimorph cantilever generating beam, under the drive of vibration float, by circular permanent magnet move up and down produce magnetic force make cantilever beam generation deformation, the wave energy of hybrid frequency is made to be converted into the electric energy of the fixed frequency of wave energy, the hybrid frequency electric energy that the intermittence solving wave motion causes exports problem, therefore the present invention can export the electric energy of fixed frequency; The present invention collects the deformation energy of U-shaped bimorph cantilever generating beam with piezoelectric ceramic, and this piezoelectric ceramic technology is ripe, effectively can improve the efficiency of collecting electric energy, low cost again, and conventional ceramic price variance is little, therefore is extremely suitable for this Blast Furnace Top Gas Recovery Turbine Unit (TRT).A kind of wave energy piezoelectric generating device based on determining frequency self-vibration provided by the invention, what achieve wave energy simply and effectively determines frequency conversion, environment and'economy remarkable benefit, structure is simple, low cost, can large-scale mass production be realized, can be widely used in, in the production fields such as wave-energy power generation industry and navigation light, realizing the object of commercial development.
Accompanying drawing explanation
Fig. 1 is the structural representation of Blast Furnace Top Gas Recovery Turbine Unit (TRT) in the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the operation principle schematic diagram of U-shaped bimorph cantilever generating beam in the present invention;
Fig. 4 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Fig. 1 ~ 4, a kind of wave energy piezoelectric generating device based on determining frequency self-vibration, is characterized in that: comprising: Blast Furnace Top Gas Recovery Turbine Unit (TRT) 1 and for described Blast Furnace Top Gas Recovery Turbine Unit (TRT) being fixed on the fixture 2 on sea, described Blast Furnace Top Gas Recovery Turbine Unit (TRT) comprises main shaft 3, described main shaft 3 is provided with water fender 4 and lower water fender 5, described upper water fender 4 and lower water fender 5 are all fixed on described main shaft 3 through described main shaft 3 respectively by upper rigid bearing 6 and lower rigid bearing 7, described main shaft 3 comprises interior axle 8 and length is less than described interior axle 8 and is coated on the outer shaft 9 outside described interior axle 8, described outer shaft 9 lower end is fixedly connected with vibration float 10, the upper surface of described vibration float 10 is close to and is arranged lower retaining collar 11, described lower retaining collar 11 is fixedly installed on described outer shaft 9, the two ends of described lower rigid bearing 7 are symmetrically arranged with retaining collar 19 and described lower retaining collar 11, be positioned on the described outer shaft 9 above retaining collar 19 and be provided with permanent magnet 12, the surrounding of described permanent magnet 12 is provided with some cantilevers generating beam 13, one end of described cantilever generating beam 13 is through inner casing 14, the airtight outside being fixed on described upper water fender 4 and lower water fender 5 of described inner casing 14, described inner casing 14 is outside equipped with shell 15, the surrounding of described shell 15 is provided with some fixing floats 16.
Described upper water fender 4 is fixed on described interior axle 8, described lower water fender 5 is fixed on described outer shaft 9, time static, the distance of the top of described outer shaft 9 and the lower surface of upper rigid bearing 6 is greater than described lower retaining collar 11 or the distance between upper retaining collar 19 and described lower rigid bearing 7.
The all airtight connection in two ends up and down of described inner casing 14 and shell 15, is provided with the dividing plate 28 prevented into water above described shell 15.
The top of described interior axle 8 is fixedly connected with described dividing plate 28.
Described permanent magnet 12 comprises circular permanent magnet.
Described circular permanent magnet comprises n-shaped body of stainless steel 17 and N number of first square magnet 18, described n-shaped body of stainless steel 17 has N number of first socket, described first square magnet 18 is arranged on described first spigot, and described circular permanent magnet passes and is fixed on described outer shaft 9.
Described cantilever generating beam 13 comprises U-shaped bimorph cantilever generating beam, described U-shaped bimorph cantilever generating beam comprises U-shaped piezoelectric ceramic 20, U-shaped body of stainless steel 21 and the second square magnet 22, described U-shaped piezoelectric ceramic 20 is attached to the outside of U-shaped body of stainless steel 21, described U-shaped body of stainless steel 21 one end is provided with the second socket, described second square magnet 22 is arranged on described second spigot, described U-shaped piezoelectric ceramic 20 is externally connected with electric wire 23, described electric wire 23 is connected to electrical storage device, the electric energy of generation is pooled to described electrical storage device, the number of described U-shaped bimorph cantilever generating beam 13 is N number of, described second square magnet 22 is just right with described first square magnet 18, the opposite end of described second square magnet 22 through described inner casing 14 and with described inner casing 14 compact siro spinning technology.
Described N number of be 8.
Described vibration float 10 comprises upper cylinder 24 and the lower cylinder 25 of one connection, described upper cylinder 24 upper surface and lower retaining collar 11 compact siro spinning technology, the diameter of described upper cylinder 24 is less than the diameter of described lower cylinder 25, and the diameter of described lower cylinder 25 is less than or equal to the internal diameter of described inner casing 14.
Described fixing float 16 is fixedly connected with described shell 15, and described fixing float 16 is connected with described fixture 2, and the number of described fixing float 16 is 3.
Described fixture 2 comprises anchor chain 26 and fixing anchor cable 27, described fixing float 16 bottom connects described anchor chain 26, described anchor chain 26 other end is connected with described fixing anchor cable 27, and described fixing anchor cable 27 is fixed on seabed, by fixing across the sea for described Blast Furnace Top Gas Recovery Turbine Unit (TRT) 1.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. based on the wave energy piezoelectric generating device determining frequency self-vibration, it is characterized in that: comprising: Blast Furnace Top Gas Recovery Turbine Unit (TRT) (1) and for described Blast Furnace Top Gas Recovery Turbine Unit (TRT) being fixed on the fixture (2) on sea; described Blast Furnace Top Gas Recovery Turbine Unit (TRT) comprises main shaft (3), described main shaft (3) is provided with water fender (4) and lower water fender (5), described upper water fender (4) and lower water fender (5) are all fixed on described main shaft (3) through described main shaft (3) respectively by upper rigid bearing (6) and lower rigid bearing (7), described main shaft (3) comprises interior axle (8) and length is less than described interior axle (8) and is coated on described interior axle (8) outer shaft outward (9), described outer shaft (9) lower end is fixedly connected with vibration float (10), the upper surface of described vibration float (10) is close to and is arranged lower retaining collar (11), described lower retaining collar (11) is fixedly installed on described outer shaft (9), the two ends of described lower rigid bearing (7) are symmetrically arranged with retaining collar (19) and described lower retaining collar (11), be positioned on the described outer shaft (9) above retaining collar (19) and be provided with permanent magnet (12), the surrounding of described permanent magnet (12) is provided with some cantilevers generating beam (13), one end of described cantilever generating beam (13) is through inner casing (14), the airtight outside being fixed on described upper water fender (4) and lower water fender (5) of described inner casing (14), described inner casing (14) is outside equipped with shell (15), the surrounding of described shell (15) is provided with some fixing floats (16).
2. a kind of wave energy piezoelectric generating device based on determining frequency self-vibration according to claim 1, is characterized in that: described upper water fender (4) is fixed on described interior axle (8), and described lower water fender (5) is fixed on described outer shaft (9); Time static, the distance of the top of described outer shaft (9) and the lower surface of upper rigid bearing (6) is greater than described lower retaining collar (11) or the distance between upper retaining collar (19) and described lower rigid bearing (7).
3. a kind of wave energy piezoelectric generating device based on determining frequency self-vibration according to claim 1, it is characterized in that: all airtight connection in two ends up and down of described inner casing (14) and shell (15), described shell (15) top is provided with the dividing plate (28) prevented into water.
4. a kind of wave energy piezoelectric generating device based on determining frequency self-vibration according to claim 3, is characterized in that: the top of described interior axle (8) is fixedly connected with described dividing plate (28).
5. a kind of wave energy piezoelectric generating device based on determining frequency self-vibration according to claim 1, is characterized in that: described permanent magnet (12) comprises circular permanent magnet.
6. a kind of wave energy piezoelectric generating device based on determining frequency self-vibration according to claim 5, it is characterized in that: described circular permanent magnet comprises n-shaped body of stainless steel (17) and N number of first square magnet (18), described n-shaped body of stainless steel (17) has N number of first socket, described first square magnet (18) is arranged on described first spigot, and described circular permanent magnet passes and is fixed on described outer shaft (9).
7. a kind of wave energy piezoelectric generating device based on determining frequency self-vibration according to claim 6, it is characterized in that: described cantilever generating beam (13) comprises U-shaped bimorph cantilever generating beam, described U-shaped bimorph cantilever generating beam comprises U-shaped piezoelectric ceramic (20), U-shaped body of stainless steel (21) and the second square magnet (22), described U-shaped piezoelectric ceramic (20) is attached to the outside of U-shaped body of stainless steel (21), described U-shaped body of stainless steel (21) one end is provided with the second socket, described second square magnet (22) is arranged on described second spigot, described U-shaped piezoelectric ceramic (20) is externally connected with electric wire (23), described electric wire (23) is connected to electrical storage device, the electric energy of generation is pooled to described electrical storage device, the number of described cantilever generating beam (13) is N number of, described second square magnet (22) is just right with described first square magnet (18), the opposite end of described second square magnet (22) through described inner casing (14) and with described inner casing (14) compact siro spinning technology.
8. a kind of wave energy piezoelectric generating device based on determining frequency self-vibration according to claim 1, it is characterized in that: described vibration float (10) comprises upper cylinder (24) and the lower cylinder (25) of one connection, described upper cylinder (24) upper surface and lower retaining collar (11) compact siro spinning technology, the diameter of described upper cylinder (24) is less than the diameter of described lower cylinder (25), and the diameter of described lower cylinder (25) is less than or equal to the internal diameter of described inner casing (14).
9. a kind of wave energy piezoelectric generating device based on determining frequency self-vibration according to claim 1, it is characterized in that: described fixing float (16) is fixedly connected with described shell (15), described fixing float (16) is connected with described fixture (2), and the number of described fixing float (16) is at least 3.
10. a kind of wave energy piezoelectric generating device based on determining frequency self-vibration according to claim 1 or 9, it is characterized in that: described fixture (2) comprises anchor chain (26) and fixing anchor cable (27), described fixing float (16) bottom connects described anchor chain (26), described anchor chain (26) other end is connected with described fixing anchor cable (27), described fixing anchor cable (27) is fixed on seabed, described Blast Furnace Top Gas Recovery Turbine Unit (TRT) (1) is fixed across the sea.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410625565.9A CN104362899A (en) | 2014-11-07 | 2014-11-07 | Wave-energy piezoelectric power generation device based on fixed frequency and natural vibration |
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| CN201410625565.9A CN104362899A (en) | 2014-11-07 | 2014-11-07 | Wave-energy piezoelectric power generation device based on fixed frequency and natural vibration |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105089918A (en) * | 2015-08-19 | 2015-11-25 | 中国船舶重工集团公司第七一〇研究所 | Wave power generation device based on piezoelectric element |
| CN105134473A (en) * | 2015-08-26 | 2015-12-09 | 哈尔滨工业大学 | Tidal energy conversion device with bionic water wings for vortex-induced flapping |
| CN105179153A (en) * | 2015-08-26 | 2015-12-23 | 哈尔滨工业大学 | Swinging fluid kinetic energy conversion device with bionic hydrofoil |
| CN105281600A (en) * | 2015-11-30 | 2016-01-27 | 长春工业大学 | Externally arranged piston coupling linked-type piezoelectric power generating air cylinder |
| CN105737904A (en) * | 2016-04-28 | 2016-07-06 | 河南丹江大观苑旅游有限公司 | Water quality monitoring system for water area of scenic spot |
| CN106050538A (en) * | 2016-06-08 | 2016-10-26 | 上海电机学院 | Novel sea wave piezoelectric electricity generation device |
| CN107171595A (en) * | 2017-07-25 | 2017-09-15 | 青岛大学 | A kind of flexible piezoelectric device of utilization power generation with marine energy |
| CN107191314A (en) * | 2017-07-25 | 2017-09-22 | 青岛大学 | A kind of electric generator using sea wave energy based on piezo-electric effect |
| CN112737411A (en) * | 2021-01-11 | 2021-04-30 | 浙大宁波理工学院 | Piezoelectric power generation device |
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| CN105089918A (en) * | 2015-08-19 | 2015-11-25 | 中国船舶重工集团公司第七一〇研究所 | Wave power generation device based on piezoelectric element |
| CN105179153B (en) * | 2015-08-26 | 2017-11-03 | 哈尔滨工业大学 | The bionical swing fluid kenetic energy converting device of hydrofoil |
| CN105134473A (en) * | 2015-08-26 | 2015-12-09 | 哈尔滨工业大学 | Tidal energy conversion device with bionic water wings for vortex-induced flapping |
| CN105179153A (en) * | 2015-08-26 | 2015-12-23 | 哈尔滨工业大学 | Swinging fluid kinetic energy conversion device with bionic hydrofoil |
| CN105281600A (en) * | 2015-11-30 | 2016-01-27 | 长春工业大学 | Externally arranged piston coupling linked-type piezoelectric power generating air cylinder |
| CN105737904A (en) * | 2016-04-28 | 2016-07-06 | 河南丹江大观苑旅游有限公司 | Water quality monitoring system for water area of scenic spot |
| CN106050538A (en) * | 2016-06-08 | 2016-10-26 | 上海电机学院 | Novel sea wave piezoelectric electricity generation device |
| CN106050538B (en) * | 2016-06-08 | 2019-12-20 | 上海电机学院 | Sea wave piezoelectric power generation device |
| CN107191314A (en) * | 2017-07-25 | 2017-09-22 | 青岛大学 | A kind of electric generator using sea wave energy based on piezo-electric effect |
| CN107171595A (en) * | 2017-07-25 | 2017-09-15 | 青岛大学 | A kind of flexible piezoelectric device of utilization power generation with marine energy |
| CN107171595B (en) * | 2017-07-25 | 2023-07-18 | 青岛大学 | Flexible piezoelectric device for generating power by using ocean energy |
| CN107191314B (en) * | 2017-07-25 | 2023-08-04 | 青岛大学 | Ocean wave energy power generation device based on piezoelectric effect |
| CN112737411A (en) * | 2021-01-11 | 2021-04-30 | 浙大宁波理工学院 | Piezoelectric power generation device |
| CN113217260A (en) * | 2021-06-18 | 2021-08-06 | 浙大宁波理工学院 | Wave energy power generation device |
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Application publication date: 20150218 |