CN112727662A - Wind-power and hydraulic power generation device based on piezoelectric patches - Google Patents
Wind-power and hydraulic power generation device based on piezoelectric patches Download PDFInfo
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- CN112727662A CN112727662A CN202011271030.8A CN202011271030A CN112727662A CN 112727662 A CN112727662 A CN 112727662A CN 202011271030 A CN202011271030 A CN 202011271030A CN 112727662 A CN112727662 A CN 112727662A
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- 238000010248 power generation Methods 0.000 title claims abstract description 59
- 239000002184 metal Substances 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000004033 plastic Substances 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 8
- 230000005284 excitation Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000015784 hyperosmotic salinity response Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/10—Combinations of wind motors with apparatus storing energy
- F03D9/11—Combinations of wind motors with apparatus storing energy storing electrical energy
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/185—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators using fluid streams
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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
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
-
- 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 power and hydraulic power generation device based on a piezoelectric sheet, and particularly relates to a power generation device which utilizes kinetic energy of water and wind to push a propeller so as to enable the piezoelectric sheet to generate bending deformation in a reciprocating manner to generate electric energy. A power generation device based on a piezoelectric sheet, a cantilever beam and a propeller structure is provided. The device can apply continuous high-frequency excitation on the cantilever beam attached with the piezoelectric sheet, so that the piezoelectric sheet can generate enough voltage. The device comprises a propeller 1, a rotating shaft 2, an inner ring 4, an outer ring 5, a fixed shaft 9, a plurality of connecting rods 3 and a plurality of power generation units connected to the inner wall of the outer ring 5; the power generating unit comprises an elastic metal sheet 8 and a piezoelectric sheet 7 attached to the metal sheet 8. On the one hand, the power generation unit in the scheme is small in overall structure size, convenient to arrange, easy to produce and manufacture and lower in processing cost. On the other hand, the scheme can be directly applied to the complex outdoor environment of wind power or hydroelectric power generation, and has the advantages of wide application range, good use effect and the like.
Description
Technical Field
The invention relates to a power generation device utilizing water power and wind energy, in particular to a power generation device which utilizes the kinetic energy of water and wind to push a propeller and leads a piezoelectric plate to generate bending deformation in a reciprocating way so as to generate electric energy.
Background
The positive piezoelectric effect refers to a phenomenon of electric polarization due to deformation. When physical pressure is applied to the piezoelectric material, the electric dipole moment in the material body is shortened due to compression, and the piezoelectric material resists the change, so that equal positive and negative charges are generated on the opposite surfaces of the material to keep the material in an original shape. This phenomenon of electric polarization due to deformation is called "positive piezoelectric effect". The mechanical energy can be converted into electric energy by utilizing the direct piezoelectric effect. When the piezoelectric sheets adhered to the upper and lower surfaces of the cantilever beam deform along with the bending of the cantilever beam, electrodes are installed on the upper surfaces of the piezoelectric sheets, and voltage and charges can be generated between the two electrodes. A simple harmonic excitation is applied to the tail end of the cantilever beam, and the piezoelectric sheet can continuously generate stable voltage due to bending deformation.
At present, a lot of power generation devices are provided, but with the development of new materials, a technology for converting mechanical energy into electric energy by utilizing the direct piezoelectric effect of a piezoelectric material has gained more and more attention in recent years. The traditional piezoelectric piece and cantilever beam power generation structure has the following problems: firstly, no stable external force source exists, and continuous high-frequency excitation cannot be generated on the cantilever beam structure by utilizing the motion of a human body and an object; secondly, the frequency of the external force applied to the cantilever beam is too low, and for the piezoelectric sheet, the higher the frequency of the external excitation is, the higher the electric energy efficiency is; and thirdly, the vibration source in life cannot provide enough force, and the deformation of the piezoelectric sheet is small.
In contrast, the state office announced a chinese utility model patent entitled "bimorph torsional vibration beam unit piezoelectric generator" and having application number "201821460556.9" on 2019, 4/9, which proposed to arrange a piezoelectric plate on a bimorph torsional vibration beam, so that under the torsional elastic shearing action of the bimorph torsional vibration beam, gradually increasing torsional vibration shearing deformation occurs, and current is generated for wind power generation or supply to families or charge various toys, mobile phones, etc.
However, in the first patent, the electric charge generated by the torsional deformation of the piezoelectric sheet is used, the torsional deformation causes the service life of the piezoelectric sheet to be reduced, and the excitation frequency of the piezoelectric sheet of the device is the same as the rotor frequency, and the frequency is too low. Secondly, the scheme needs a bimorph torsional vibration beam with a larger size, wherein the piezoelectric sheet is also longer in length, so that the piezoelectric sheet is not easy to produce and manufacture, and brings great burden to the production cost of the equipment; meanwhile, the overlong piezoelectric piece is easy to damage along with the prolonging of the service time. Thirdly, the whole structure of the case is large in size, large in axial length and difficult to seal, so that the case is not suitable for outdoor complex environment and is difficult to be applied to wind power or hydroelectric power generation environment.
Disclosure of Invention
The invention provides a power generation device based on a piezoelectric sheet, a cantilever beam and a propeller structure, aiming at the problems. The device can apply continuous high-frequency excitation on the cantilever beam attached with the piezoelectric sheet, so that the piezoelectric sheet can generate enough voltage.
The technical scheme of the invention is as follows: the device comprises a propeller 1, a rotating shaft 2, an inner ring 4, an outer ring 5, a fixed shaft 9, a plurality of connecting rods 3 and a plurality of power generation units connected to the inner wall of the outer ring 5;
the outer ring 5 and the fixed shaft 9 are both fixedly connected to the base, the rotating shaft 2 is sleeved with the fixed shaft 9, the propeller 1 is fixedly connected to the rotating shaft 2, and the rotating shaft 2 is driven to rotate through the propeller 1; the rotating shaft 2, the inner ring 4 and the outer ring 5 are coaxial, and the inner ring 4 is positioned between the rotating shaft 2 and the outer ring 5 and is fixedly connected with the rotating shaft 2 through a plurality of connecting rods 3;
the power generation unit comprises an elastic metal sheet 8 and a piezoelectric sheet 7 attached to the metal sheet 8;
the power generation units are uniformly distributed between the inner ring 4 and the outer ring 5, the root parts of the elastic metal sheets 8 in the power generation units are fixedly connected to the inner wall of the outer ring 5, a gap is reserved between the head parts of the elastic metal sheets 8 and the inner ring 4, and the outer wall of the inner ring 4 is also fixedly connected with a plurality of protruding points 6 used for shifting the elastic metal sheets 8.
The wind power and water power generation device further comprises baffle plates 10 fixedly connected to two ends of the outer ring 5, the baffle plates 10 are annular, the outer edges of the baffle plates 10 are fixedly connected with the port of the outer ring 5, sealing is kept between the baffle plates and the port of the inner ring 4, and the inner edges of the baffle plates 10 are connected with the port of the inner ring 4 through oil seals, so that the baffle plates 10 and the inner ring 4 are also kept sealed.
A plurality of the power generation units are arranged in the radial direction of the outer ring 5.
The propeller 1, the rotating shaft 2, the inner ring 4, the outer ring 5, the fixed shaft 9, the connecting rod 3, and the baffle 10 are made of plastic, resin, or metal.
The wind power and hydraulic power generation device is provided with a plurality of wind power and hydraulic power generation devices which are sequentially connected in series, outer rings of the adjacent wind power and hydraulic power generation devices are sequentially and fixedly connected, and inner rings of the adjacent wind power and hydraulic power generation devices are also sequentially and fixedly connected.
When water flow or air flow passes through the inner ring, the propeller is quickly pushed to rotate, so that the inner ring 4 is driven to rotate through the connecting rod and rotates relative to the outer ring 5; the elastic metal sheet fixed on the inner wall of the outer ring is shifted by the protruding points on the outer side of the inner ring regularly, so that the metal sheet is continuously bent and deformed, the piezoelectric sheet is driven to generate electric energy, and the electric energy can be stored by the energy storage device through the circuit. Whereas more protrusions 6 and power generating units may be arranged in places where the external excitation frequency is low.
The piezoelectric sheet adopted by the invention is stretched and bent in the length direction to generate charges, and is different from the piezoelectric sheet in the prior art which generates charges due to torsional deformation. On the other hand, the scheme can be directly applied to the complex outdoor environment of wind power or hydroelectric power generation, and has the advantages of wide application range, good use effect and the like.
In addition, because the power generation device with the propeller structure is mature in application, according to the structural characteristics of the invention, the original device can be slightly improved to realize higher power generation efficiency.
Drawings
FIG. 1 is a schematic structural diagram of the present application,
figure 2 is a schematic diagram of the internal structure of the present invention,
fig. 3 is a schematic diagram of the internal structure of the present invention,
figure 4 is a schematic diagram of the internal structure of the present invention,
figure 5 is a schematic view of an assembled structure of piezoelectric patches,
FIG. 6 is a terminal voltage versus frequency curve of a piezoelectric patch obtained by finite element simulation;
in the figure, 1 is a propeller, 2 is a rotating shaft, 3 is a connecting rod, 4 is an inner ring, 5 is an outer ring, 6 is a protrusion point, 7 is a piezoelectric sheet, 8 is an elastic metal sheet, 9 is a fixed shaft, and 10 is a baffle.
Detailed Description
In order to clearly explain the technical features of the present patent, the following detailed description of the present patent is provided in conjunction with the accompanying drawings.
The working principle of the invention is as follows:
as shown in FIG. 5, two piezoelectric sheets with a length of 100mm and a width of 50mm are attached to two sides of the cantilever, and when the end of the cantilever is excited by simple resonance, voltages generated at two poles of the piezoelectric sheets are shown in FIG. 6. If the frequency of the simple harmonic excitation is 180Hz, the piezoelectric patch will generate a voltage of approximately 7500V. While higher voltages can be obtained at other frequencies.
Similarly, dozens of even hundreds of cantilever beams are annularly arranged on the same plane, when the propeller is pushed by wind power and water power to rotate, the propeller can drive the inner ring to rotate, each cantilever beam can be continuously pushed by the protrusion on the inner ring, the cantilever beams are continuously bent and deformed in a reciprocating mode, and the piezoelectric sheets can generate electric energy. Very high voltages can also be generated when a certain frequency is reached. The piezoelectric cantilever beam which is arranged in the annular direction in a more-time mode enables the fan to rotate for one circle, and the vibration frequency borne by the piezoelectric cantilever beam is higher. The stable high-frequency vibration is beneficial to the output current of the piezoelectric plate.
The structure of the invention is shown in figures 1-4, and comprises a propeller 1, a rotating shaft 2, an inner ring 4, an outer ring 5, a fixed shaft 9, a plurality of connecting rods 3 and a plurality of power generation units connected to the inner wall of the outer ring 5;
the outer ring 5 and the fixed shaft 9 are both fixedly connected to the base, the rotating shaft 2 is sleeved with the fixed shaft 9, the propeller 1 is fixedly connected to the rotating shaft 2, and the rotating shaft 2 is driven to rotate through the propeller 1; the rotating shaft 2, the inner ring 4 and the outer ring 5 are coaxial, and the inner ring 4 is positioned between the rotating shaft 2 and the outer ring 5 and is fixedly connected with the rotating shaft 2 through a plurality of connecting rods 3; therefore, when water flow or air flow passes through the inner ring, the propeller is quickly pushed to rotate, so that the inner ring 4 is driven to rotate through the connecting rod, and the inner ring is enabled to rotate relative to the outer ring 5;
the power generation unit comprises an elastic metal sheet 8 and a piezoelectric sheet 7 attached to the metal sheet 8; a cantilever beam structure is formed, and the electrodes on the upper surface and the lower surface of the piezoelectric plate are connected to an external electric energy storage device during actual use, so that electric energy can be recovered;
the power generation units are uniformly distributed between the inner ring 4 and the outer ring 5, the root parts of the elastic metal sheets 8 in the power generation units are fixedly connected to the inner wall of the outer ring 5, a gap is reserved between the head parts of the elastic metal sheets 8 and the inner ring 4, and the outer wall of the inner ring 4 is also fixedly connected with a plurality of protruding points 6 used for shifting the elastic metal sheets 8. Thus, when the inner ring and the outer ring 5 do relative rotation movement, the protrusion points outside the inner ring will regularly stir the elastic metal sheet fixed on the inner wall of the outer ring, so that the metal sheet is continuously bent and deformed, and then the piezoelectric sheet is driven to generate electric energy, and the electric energy can be stored by the energy storage device through the circuit.
Specifically, the propeller 1 is welded on the rotating shaft, the rotating shaft 2 is arranged on the fixed shaft 9, and the propeller 1 and the rotating shaft 2 can rotate freely; two ends of the connecting rod 3 are respectively welded on the rotating shaft 2 and the inner ring 4, and the inner ring 4 can rotate along with the rotating shaft 2; the inner ring 4 is provided with a protruding point 6, and the protruding point 6 can be a rivet or other semicircular metal objects welded on the outer surface of the inner ring 4; the elastic metal sheet 8 is welded on the outer ring 5, one end of the elastic metal sheet is fixed, and the other end of the elastic metal sheet is free; the length of the elastic metal sheet 8 can just hit the protruding point when rotating; the piezoelectric sheets 7 are slightly shorter than the sheets 8, the piezoelectric sheets 7 are adhered to the upper surface and the lower surface of each metal sheet 8, and electrodes are arranged on the upper surface and the lower surface of each piezoelectric sheet 7 and connected with an external energy storage circuit; the fixed shaft 9 and the outer ring 5 are fixed with respect to the whole device.
The wind power and water power generation device further comprises baffle plates 10 fixedly connected to two ends of the outer ring 5, the baffle plates 10 are annular, the outer edges of the baffle plates 10 are fixedly connected with the port of the outer ring 5, sealing is kept between the baffle plates and the port of the inner ring 4, and the inner edges of the baffle plates 10 are connected with the port of the inner ring 4 through oil seals, so that the baffle plates 10 and the inner ring 4 are also kept sealed. The baffle 10 can play a role in preventing water from contacting with the piezoelectric patches, and can effectively protect the piezoelectric patches; the baffle plate 10 and the inner ring 4 are fixed in an oil-sealing mode and the outer ring 5 can be welded or glued; therefore, the scheme can be directly suitable for the complex outdoor environment of wind power or hydroelectric power generation, and has the advantages of wide application range, good use effect and the like.
A plurality of the power generation units are arranged in the radial direction of the outer ring 5. Thereby make the structural configuration of the power generation unit more reasonable, stable to can make the protruding point to trigger the effect better in stirring of power generation unit. Meanwhile, the power generation unit is arranged along the radial direction of the outer ring 5, so that the power generation unit in the scheme has the advantages of small overall structure size, convenience in layout, easiness in production and manufacturing and lower processing cost.
The propeller 1, the rotating shaft 2, the inner ring 4, the outer ring 5, the fixed shaft 9, the connecting rod 3, and the baffle 10 are made of plastic, resin, or metal. The entire structure can be made of plastic, resin or metal except for the piezoelectric sheet 7 and the metal foil 8. The plastic material has the characteristics of acid resistance, corrosion resistance, salt tolerance and the like, and also has the advantages of low cost and light weight. Adopt metal then to make overall structure heavier more stable, intensity is higher, the welding of being convenient for.
The wind power and hydraulic power generation device is provided with a plurality of wind power and hydraulic power generation devices which are sequentially connected in series, outer rings of the adjacent wind power and hydraulic power generation devices are sequentially and fixedly connected, and inner rings of the adjacent wind power and hydraulic power generation devices are also sequentially and fixedly connected. As shown in fig. 1, several groups of power generation devices may be connected in series for increasing the efficiency of power generation in practical situations. The series connection adopts the forms of welding or gluing and the like to ensure that no gap is generated in the interior of the wind power and water power generation device, and a plurality of wind power and water power generation devices can share the propeller 1, the rotating shaft 2 and the fixed shaft 9 in actual use.
While the invention has been described in terms of its preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (5)
1. A wind power and water power generation device based on a piezoelectric patch is characterized by comprising a propeller (1), a rotating shaft (2), an inner ring (4), an outer ring (5), a fixed shaft (9), a plurality of connecting rods (3) and a plurality of power generation units connected to the inner wall of the outer ring (5);
the outer ring (5) and the fixed shaft (9) are fixedly connected to the base, the rotating shaft (2) is sleeved with the fixed shaft (9), the propeller (1) is fixedly connected to the rotating shaft (2), and the rotating shaft (2) is driven to rotate through the propeller (1); the rotating shaft (2), the inner ring (4) and the outer ring (5) are coaxial, and the inner ring (4) is positioned between the rotating shaft (2) and the outer ring (5) and is fixedly connected with the rotating shaft (2) through a plurality of connecting rods (3);
the power generation unit comprises an elastic metal sheet (8) and a piezoelectric sheet (7) attached to the metal sheet (8);
the power generation units are uniformly distributed between the inner ring (4) and the outer ring (5), the root parts of the elastic metal sheets (8) in the power generation units are fixedly connected to the inner wall of the outer ring (5), a gap is reserved between the head parts of the elastic metal sheets (8) and the inner ring (4), and the outer wall of the inner ring (4) is fixedly connected with a plurality of protruding points (6) used for shifting the elastic metal sheets (8).
2. The wind-power and water-power generation device based on the piezoelectric patches is characterized by further comprising baffle plates (10) fixedly connected to two ends of the outer ring (5), wherein the baffle plates (10) are annular, the outer edges of the baffle plates (10) are fixedly connected with the ports of the outer ring (5) and are sealed, and the inner edges of the baffle plates (10) are connected with the ports of the inner ring (4) through oil seals, so that the baffle plates (10) and the inner ring (4) are also sealed.
3. A wind-and-water power plant based on piezoelectric patches, according to claim 1, characterized in that a plurality of said power cells are arranged radially of the outer ring (5).
4. A wind-and water-power unit based on piezoelectric patches according to claim 1, characterized in that the propeller (1), the rotation shaft (2), the inner ring (4), the outer ring (5), the fixed shaft (9), the connecting rod (3) and the baffle (10) are made of plastic, resin or metal.
5. The wind-power and water-power generation device based on the piezoelectric plate according to claim 1, wherein the wind-power and water-power generation device comprises a plurality of wind-power and water-power generation devices, the plurality of wind-power and water-power generation devices are sequentially connected in series, outer rings of adjacent wind-power and water-power generation devices are sequentially and fixedly connected, and inner rings of adjacent wind-power and water-power generation devices are also sequentially and fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011271030.8A CN112727662A (en) | 2020-11-13 | 2020-11-13 | Wind-power and hydraulic power generation device based on piezoelectric patches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011271030.8A CN112727662A (en) | 2020-11-13 | 2020-11-13 | Wind-power and hydraulic power generation device based on piezoelectric patches |
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| Publication Number | Publication Date |
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| CN112727662A true CN112727662A (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011271030.8A Pending CN112727662A (en) | 2020-11-13 | 2020-11-13 | Wind-power and hydraulic power generation device based on piezoelectric patches |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113676079A (en) * | 2021-07-30 | 2021-11-19 | 浙江大学 | Dual-rotor micro-flow energy capturing power generation device based on piezoelectric effect |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202721622U (en) * | 2012-09-01 | 2013-02-06 | 浙江师范大学 | Disc cam excitation and limit type high power rotation type piezoelectric wind generator |
| CN104410327A (en) * | 2014-11-25 | 2015-03-11 | 哈尔滨工业大学 | Shaftless turbine rotor non-contact vibration-type fluid kinetic energy conversion device |
| CN204304834U (en) * | 2014-09-17 | 2015-04-29 | 扬州大学 | Symmetric type wind power piezoelectric generation device |
| CN207083028U (en) * | 2017-07-17 | 2018-03-09 | 江苏联能电子技术有限公司 | A kind of ring shaped rotary electrification structure of piezoelectric ceramic generator |
| CN210351042U (en) * | 2019-08-22 | 2020-04-17 | 扬州大学 | Cantilever type wind power generation device |
| CN111711382A (en) * | 2020-05-29 | 2020-09-25 | 上海应用技术大学 | Rotary energy collector based on PZT cantilever beam |
-
2020
- 2020-11-13 CN CN202011271030.8A patent/CN112727662A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202721622U (en) * | 2012-09-01 | 2013-02-06 | 浙江师范大学 | Disc cam excitation and limit type high power rotation type piezoelectric wind generator |
| CN204304834U (en) * | 2014-09-17 | 2015-04-29 | 扬州大学 | Symmetric type wind power piezoelectric generation device |
| CN104410327A (en) * | 2014-11-25 | 2015-03-11 | 哈尔滨工业大学 | Shaftless turbine rotor non-contact vibration-type fluid kinetic energy conversion device |
| CN207083028U (en) * | 2017-07-17 | 2018-03-09 | 江苏联能电子技术有限公司 | A kind of ring shaped rotary electrification structure of piezoelectric ceramic generator |
| CN210351042U (en) * | 2019-08-22 | 2020-04-17 | 扬州大学 | Cantilever type wind power generation device |
| CN111711382A (en) * | 2020-05-29 | 2020-09-25 | 上海应用技术大学 | Rotary energy collector based on PZT cantilever beam |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113676079A (en) * | 2021-07-30 | 2021-11-19 | 浙江大学 | Dual-rotor micro-flow energy capturing power generation device based on piezoelectric effect |
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