CN109458290B - Buoy type dielectric elastomer wave energy generator - Google Patents
Buoy type dielectric elastomer wave energy generator Download PDFInfo
- Publication number
- CN109458290B CN109458290B CN201811591281.7A CN201811591281A CN109458290B CN 109458290 B CN109458290 B CN 109458290B CN 201811591281 A CN201811591281 A CN 201811591281A CN 109458290 B CN109458290 B CN 109458290B
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- dielectric elastomer
- multilayer stack
- type dielectric
- buoy
- shell
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- 229920002595 Dielectric elastomer Polymers 0.000 title claims abstract description 69
- 239000002184 metal Substances 0.000 claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 21
- 238000003860 storage Methods 0.000 claims abstract description 7
- 238000010248 power generation Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229920001746 electroactive polymer Polymers 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
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
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
- F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
- F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
- F03B13/1845—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom slides relative to the rem
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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
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2220/00—Application
- F05B2220/70—Application in combination with
- F05B2220/706—Application in combination with an electrical generator
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention discloses a buoy type dielectric elastomer wave energy generator, which comprises: the waterproof outer shell surrounds the metal inner shell; the multilayer stack-type dielectric elastomer conversion device is arranged on the inner side of the metal inner shell; the small spring is positioned between the multilayer stack type dielectric elastomer conversion device and the disc and is fixed on the inner side of the metal inner shell; the insulating rod extends into the metal inner shell through the waterproof outer shell and is connected with the disc through the multilayer stack-type dielectric elastomer conversion device; wherein, a buoy is arranged at the top of the insulating rod; one end of the big spring is connected with the bottom of the disc, and the other end is connected with the bottom of the inner side of the waterproof shell. The buoy moves up and down along with the waves, the insulating rod drives the multilayer stack-type dielectric elastomer conversion device to stretch or shrink up and down along with the up and down movement of the buoy, direct current is generated, the direct current is charged into the storage battery, and ocean energy power generation by using the dielectric elastomer is realized.
Description
Technical Field
The invention relates to the technical field of dielectric elastomer generators, in particular to a buoy type dielectric elastomer wave energy generator.
Background
With the development of society, energy crisis and environmental problems are increasingly serious, and research on important renewable clean energy sources such as solar energy, wind energy, ocean energy and the like is attracting attention. The ocean energy has huge reserve, and the wave energy in the ocean energy has the advantages of high energy density, wide distribution range, convenient utilization and the like, thereby becoming an important component of future energy strategy of each country. The dielectric elastomer (Dielectric elastomer, DE) is an electroactive polymer that converts electrical energy to mechanical energy in an electric field and changes shape. In contrast, mechanical energy can be converted into electrical energy by material deformation DE. The conventional power generation device is generally based on the electromagnetic induction principle, and the complicated mechanical structure of the conventional power generation device is easy to damage in a severe working environment. The dielectric elastomer generator (Dielectric Elastomer generator, DEG) power generation principle is based on a variable capacitor power generation mechanism, and mechanical energy can be converted into electric energy through power generation circulation, so that the wave energy power generation device has the advantages of good flexibility, impact resistance, high energy density, easiness in processing, low noise and the like, and meets the requirements of the wave energy power generation device.
Therefore, how to provide a device for ocean power generation using dielectric elastomer is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the invention provides a buoy type dielectric elastomer wave energy generator, which realizes ocean energy power generation by utilizing a dielectric elastomer.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a floating dielectric elastomer wave energy generator comprising: buoy, insulating rod, waterproof outer shell, metal inner shell, multilayer stack-dielectric elastomer conversion device, small spring, disc and large spring;
the waterproof outer shell surrounds the metal inner shell;
the multilayer stack-type dielectric elastomer conversion device is arranged on the inner side of the metal inner shell; the small spring is positioned between the multilayer stack-type dielectric elastomer switching device and the disc and is fixed on the inner side of the metal inner shell;
the insulating rod extends into the metal inner shell through the waterproof outer shell and is connected with the disc through the multilayer stack-type dielectric elastomer conversion device; wherein the buoy is arranged at the top of the insulating rod;
one end of the big spring is connected with the bottom of the disc, and the other end of the big spring is connected with the bottom of the inner side of the waterproof shell.
Preferably, the insulating rod is connected with the buoy through a supporting device.
Preferably, the number of the small springs is four, and parameters of the small springs are the same.
Preferably, one end of the big spring is connected with the center of the bottom of the disc, and the other end of the big spring is connected with the center of the bottom of the inner side of the waterproof shell.
Preferably, the multilayer stacked-dielectric elastomer conversion device includes: a plurality of dielectric elastomer films, flexible electrodes, a bias power supply, and a battery;
each dielectric elastomer film is coated with the flexible electrode up and down, and a plurality of dielectric elastomer films are stacked up and down in series to form a multilayer stack-type dielectric elastomer, one end of the multilayer stack-type dielectric elastomer is connected with a bias power supply, and the other end of the multilayer stack-type dielectric elastomer is connected with a storage battery.
Compared with the prior art, the invention discloses the buoy type dielectric elastomer wave energy generator, waves are beaten from the side, the buoy moves up and down along with the waves due to the action of the anchor system, the insulating rod moves up and down along with the buoy, the multilayer stack type dielectric elastomer conversion device is driven to stretch or shrink up and down to generate direct current, the direct current is charged into the storage battery, and ocean energy power generation by using the dielectric elastomer is realized.
In addition, the arrangement of the large spring and the small spring ensures that the stroke of the insulating rod is within a certain range, ensures that the multilayer stack type-dielectric elastomer conversion device works within the stretching limit, and prolongs the service life. The invention adopts a multilayer stack type-dielectric elastomer conversion device, thereby greatly improving the conversion efficiency.
The invention has no rigid structure of the traditional electromagnetic or hydraulic wave energy generator, greatly reduces the manufacturing and maintenance cost, and enhances the durability and stability in the ocean. Meanwhile, the device has the advantages of simple structure, convenient manufacture and low cost, can stably and reliably work under various sea conditions, and is beneficial to improving the development and utilization of wave energy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a floating dielectric elastomer wave energy generator according to the present invention;
FIG. 2 is a schematic diagram of a floating dielectric elastomer wave energy generator according to the second embodiment of the present invention;
FIG. 3 is a schematic diagram of a floating dielectric elastomer wave energy generator according to the present invention;
FIG. 4 is a schematic diagram of a multilayer stacked-dielectric elastomer switching device according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-3, an embodiment of the invention discloses a buoy type dielectric elastomer wave energy generator, which specifically comprises: buoy 1, insulating rod 3, waterproof outer shell 4, metal inner shell 5, multilayer stack-type-dielectric elastomer switching device 6, small spring 7, disc 8 and large spring 9; wherein the multilayer stack-type dielectric elastomer switching device 6, the small spring 7, the disc 8 and the large spring 9 are all positioned in the metal inner shell 5; wherein the small spring 7 is fixed on the protruding part of the inner side of the metal inner shell 5.
The waterproof outer shell 4 surrounds the metal inner shell 5;
a multilayer stack-type dielectric elastomer switching device 6 is mounted inside the metal inner case 5; a small spring 7 is positioned between the multilayer stack-type dielectric elastomer switching device 6 and the disc 8 and is fixed inside the metal inner shell 5;
the insulating rod 3 extends through the waterproof outer shell 4 into the metal inner shell 5 and is connected to the disc 8 through the multilayer stack-type dielectric elastomer switching device 6; wherein, the top of the insulating rod 3 is provided with a buoy 1;
the insulating rod penetrates through the waterproof shell and moves up and down along with the buoy.
One end of the big spring 9 is connected with the bottom of the disc 8, and the other end is connected with the bottom of the inner side of the waterproof shell 4.
In order to further optimize the solution described above, the insulating rod 3 is connected to the buoy 1 by means of the support device 2.
In order to further optimize the technical scheme, the number of the small springs 7 is four, and parameters of the small springs 7 are the same.
In order to further optimize the technical scheme, one end of the large spring 9 is connected with the bottom center of the disc 8, and the other end of the large spring is connected with the bottom center of the inner side of the waterproof shell 4.
The insulating rod moves up and down along with the buoy to drive the disc to move up and down to compress the small spring and the large spring, and the small spring and the large spring ensure that the stroke of the insulating rod is within a certain range.
Referring to fig. 4, to further optimize the solution described above, the multilayer stack-type-dielectric elastomer conversion device 6 comprises: a plurality of dielectric elastomer films 11, flexible electrodes 12, bias power supply and storage battery;
each dielectric elastomer film 11 is coated with a flexible electrode 12 on top of each other, and a plurality of dielectric elastomer films 11 are stacked in series on top of each other to form a multilayer stack-type dielectric elastomer, one end of which is connected to a bias power supply, and the other end of which is connected to a battery.
As shown in fig. 4, VD is connected to a bias power supply, and V (t) is connected to a storage battery.
The insulating rod is connected with the multilayer stack-type dielectric elastomer conversion device and moves along with the insulating rod, so that mechanical energy is converted into electric energy in the process of stretching and contracting up and down to generate electricity.
In the invention, the waterproof outer shell can play a role in preventing seawater from entering the metal inner shell, so that other components are prevented from being damaged. The wave is beaten from the side, owing to receive the effect of anchor, the buoy is up and down along with the wave, and the insulating rod is along with buoy up-and-down motion to let the multilayer stack formula that is connected with the insulating rod-dielectric elastomer conversion equipment stretch or shrink from top to bottom, the dielectric elastomer membrane of coating flexible electrode is under bias power supply's effect, and the repeated stretching compresses, produces the direct current point, and fills in the battery.
The invention uses multilayer stacked DEG, which greatly improves the conversion efficiency.
The invention has no rigid structure of the traditional electromagnetic or hydraulic wave energy generator, greatly reduces the manufacturing and maintenance cost, and enhances the durability and stability in the ocean. Meanwhile, the device has the advantages of simple structure, convenient manufacture and low cost, can stably and reliably work under various sea conditions, and is beneficial to improving the development and utilization of wave energy.
In operation, the insulating rod is connected to the buoy via the support device, the buoy moves up and down with the waves, the insulating rod connected to the buoy moves up and down, and the multilayer stack-type dielectric elastomer conversion device connected to the insulating rod is stretched or contracted accordingly. When stretching, the thickness of the dielectric elastomer film of the coating flexible electrode in the multilayer stack type dielectric elastomer conversion device is reduced, the capacitance is increased, at the moment, the bias power supply provides initial charge, when shrinking, the thickness of the dielectric elastomer film of the coating electrode is recovered, the capacitance is reduced, the charge is unchanged, the voltage is increased, and the repeated circulation is carried out in this way, so that the generated direct current is charged into the storage battery.
When the fluctuation of the waves is too large, the insulating rod generates a large up-and-down movement stroke, and at the moment, four small springs and the large springs respectively protect the up-and-down movement stroke within a certain range, so that the multilayer stack type-dielectric elastomer conversion device works within the stretching limit, and the service life is prolonged.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (1)
1. A floating dielectric elastomer wave energy generator, comprising: buoy (1), insulating rod (3), waterproof outer shell (4), metal inner shell (5), multilayer stack-type dielectric elastomer conversion device (6), small spring (7), disc (8) and big spring (9);
the waterproof outer shell (4) surrounds the metal inner shell (5);
said multilayer stack-type dielectric elastomer switching device (6) is mounted inside said metal inner shell (5); the small spring (7) is positioned between the multilayer stack-type dielectric elastomer switching device (6) and the disc (8) and is fixed inside the metal inner shell (5);
the insulating rod (3) extends through the waterproof outer shell (4) into the metal inner shell (5) and is connected with the disc (8) through the multilayer stack-type dielectric elastomer conversion device (6); wherein the buoy (1) is arranged at the top of the insulating rod (3);
one end of the big spring (9) is connected with the bottom of the disc (8), and the other end of the big spring is connected with the bottom of the inner side of the waterproof shell (4);
the number of the small springs (7) is four, and the parameters of the small springs (7) are the same;
one end of the big spring (9) is connected with the center of the bottom of the disc (8), and the other end of the big spring is connected with the center of the bottom of the inner side of the waterproof shell (4);
the multilayer stacked-dielectric elastomer switching device (6) includes: a plurality of dielectric elastomer films (11), flexible electrodes (12), a bias power supply, and a battery;
each dielectric elastomer film (11) is coated with the flexible electrode (12) up and down, and a plurality of dielectric elastomer films (11) are stacked up and down in series to form a multilayer stack-type dielectric elastomer, one end of the multilayer stack-type dielectric elastomer is connected with a bias power supply, and the other end of the multilayer stack-type dielectric elastomer is connected with a storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811591281.7A CN109458290B (en) | 2018-12-20 | 2018-12-20 | Buoy type dielectric elastomer wave energy generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811591281.7A CN109458290B (en) | 2018-12-20 | 2018-12-20 | Buoy type dielectric elastomer wave energy generator |
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| Publication Number | Publication Date |
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| CN109458290A CN109458290A (en) | 2019-03-12 |
| CN109458290B true CN109458290B (en) | 2024-03-12 |
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| CN201811591281.7A Active CN109458290B (en) | 2018-12-20 | 2018-12-20 | Buoy type dielectric elastomer wave energy generator |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848075B (en) * | 2019-10-31 | 2021-02-02 | 亳州学院 | Offshore shore wave energy and tidal energy combined power generation device |
| CN112421984B (en) * | 2020-11-18 | 2022-12-09 | 泉州铕之易工程管理有限公司 | Stack type dielectric elastomer wave energy collector |
| CN112963290A (en) * | 2020-12-22 | 2021-06-15 | 浙江师范大学 | Piezoelectric offset type wave energy dielectric elastomer generator |
| CN113294283B (en) * | 2021-07-22 | 2022-08-09 | 山东省科学院海洋仪器仪表研究所 | Wave energy power generation device with flexible transduction-seal structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2044738A1 (en) * | 1990-09-25 | 1992-03-26 | Takeo Kuboyama | Luminous float |
| CN206590076U (en) * | 2017-01-12 | 2017-10-27 | 广东海洋大学 | Moving-magnetic type wave-energy power generation buoy |
| CN108444455A (en) * | 2018-02-02 | 2018-08-24 | 哈尔滨工程大学 | A kind of wave energy float type wave height recorder |
| CN209385279U (en) * | 2018-12-20 | 2019-09-13 | 浙江师范大学 | A kind of float type dielectric elastomer wave energy generator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT399753B (en) * | 1985-09-16 | 1995-07-25 | Norbert Guenter | Apparatus for conversion of motion energy of water waves |
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2018
- 2018-12-20 CN CN201811591281.7A patent/CN109458290B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2044738A1 (en) * | 1990-09-25 | 1992-03-26 | Takeo Kuboyama | Luminous float |
| CN206590076U (en) * | 2017-01-12 | 2017-10-27 | 广东海洋大学 | Moving-magnetic type wave-energy power generation buoy |
| CN108444455A (en) * | 2018-02-02 | 2018-08-24 | 哈尔滨工程大学 | A kind of wave energy float type wave height recorder |
| CN209385279U (en) * | 2018-12-20 | 2019-09-13 | 浙江师范大学 | A kind of float type dielectric elastomer wave energy generator |
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| CN109458290A (en) | 2019-03-12 |
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