CN113241967A - Piezoelectric friction electricity hybrid energy collector for wave motion - Google Patents
Piezoelectric friction electricity hybrid energy collector for wave motion Download PDFInfo
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- CN113241967A CN113241967A CN202110709836.9A CN202110709836A CN113241967A CN 113241967 A CN113241967 A CN 113241967A CN 202110709836 A CN202110709836 A CN 202110709836A CN 113241967 A CN113241967 A CN 113241967A
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- piezoelectric
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- triboelectric
- shell
- wave motion
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- 230000005611 electricity Effects 0.000 title description 8
- 239000000463 material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical group Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
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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
- F03B13/22—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 flow of water resulting from wave movements to drive a motor or turbine
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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
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention discloses a piezoelectric-triboelectric hybrid energy collector for wave motion, which comprises a shell, a piezoelectric module and a triboelectric module, wherein the triboelectric module comprises a propeller, an outer end cover, a rotary disk and an inner end cover which are sequentially distributed from outside to inside; the piezoelectric module is arranged in the shell and comprises a connecting shaft, a linear bearing, a mass block and two force amplifiers, wherein the two force amplifiers are fixedly connected with the inner wall of the shell respectively, the two force amplifiers are fixedly connected through the connecting shaft, the linear bearing is sleeved on the connecting shaft in a sliding mode, the mass block is fixedly arranged on the linear bearing, and a piezoelectric stack is embedded in each force amplifier. The invention can effectively collect wave motion energy.
Description
Technical Field
The invention relates to the technical field of energy collectors, in particular to a piezoelectric friction electric hybrid energy collector for wave motion.
Background
With the development of science and technology and times, the demand and consumption of human energy are increasing day by day. The traditional energy sources used in large quantities at present, such as petroleum, coal and various chemical batteries, have various disadvantages, and in particular, the environment is seriously and irreversibly polluted and damaged in the aspect of environment. Therefore, in order to solve the problems of energy supply and environmental friendliness, research and collection of clean energy becomes a research hotspot, such as tide, solar energy, wind energy and the like. Piezoelectric, electromagnetic or triboelectric energy collectors have now shown great potential to attract attention in small portable electronic devices.
Among these sustainable energy sources, many characteristics are low-frequency vibration, such as wind energy, human body movement or wave and tidal energy, and the fluctuation of the wave contains a lot of vibration energy which can be collected, however, the working range of most current energy collectors does not conform to the marine environment, because their target working curve is usually limited to the middle-high frequency range of tens of hertz to hundreds of hertz, so that the low-frequency vibration environment such as wave fluctuation or human body movement cannot be properly collected.
Disclosure of Invention
The invention aims to provide a piezoelectric friction-electricity hybrid energy collector for wave motion, which solves the problems in the prior art and realizes effective collection of wave motion energy.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a piezoelectric friction-electricity hybrid energy collector for wave motion, which comprises a shell, a piezoelectric module and a friction electricity module, the friction electric module comprises a propeller, an outer end cover, a rotating disk and an inner end cover which are sequentially distributed from outside to inside, the outer end cover and the inner end cover are respectively fixedly connected with the shell, the outer end cover and the shell are sealed, the propeller and the rotating disc are respectively and fixedly connected with a rotating shaft, the rotating shaft penetrates through the outer end cover, and the rotating shaft is in running fit with the outer end cover, a fence friction layer is respectively and fixedly arranged on one side of the rotating disc facing the inner end cover and one side of the inner end cover facing the rotating disc, when the rotating disc rotates relative to the inner end cover, the fence friction layer on the rotating disc and the fence friction layer on the inner end cover rub to generate electric energy; the piezoelectric module is built-in the shell, the piezoelectric module includes connecting axle, linear bearing, quality piece and two force amplifier, two force amplifier respectively with the inner wall of shell links firmly, two force amplifier passes through the connecting axle links firmly, linear bearing slip cover is established on the connecting axle, linear bearing and every all be provided with a cover between the force amplifier and establish connect epaxial spring, the quality piece sets firmly on linear bearing, every all inlay in the force amplifier and be equipped with the piezoelectric stack.
Preferably, the housing is cylindrical; the number of the triboelectric modules is two, and the two triboelectric modules are respectively arranged at two openings of the shell.
Preferably, the force amplifier is a diamond-shaped frame, and the material of the force amplifier is metal.
Preferably, the rotating shaft is connected with the outer end cover in a sealing manner.
Preferably, the piezoelectric module is located between two of the triboelectric modules.
Preferably, the housing is provided with a through groove corresponding to each force amplifier, the force amplifiers are arranged in the corresponding through grooves, and the force amplifiers are connected with the housing through bolts.
Preferably, the rotating shaft, the propeller and the rotating disc are coaxial.
Preferably, an axial direction of the connecting shaft is perpendicular to an axial direction of the housing.
Compared with the prior art, the invention has the following technical effects:
the piezoelectric friction electricity hybrid energy collector for wave motion can effectively collect wave motion energy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a piezoelectric triboelectric hybrid energy collector for wave motion according to the present invention;
FIG. 2 is an exploded view of the piezoelectric triboelectric hybrid energy collector of the present invention used in wave motion;
FIG. 3 is a schematic diagram of a portion of a piezoelectric hybrid triboelectric energy collector for wave motion according to the present invention;
wherein: 100. a piezoelectric triboelectric hybrid energy harvester for wave motion; 1. a housing; 2. a propeller; 3. a rotating shaft; 4. an outer end cover; 5. rotating the disc; 6. an inner end cap; 7. a fence friction layer; 8. a connecting shaft; 9. a linear bearing; 10. a mass block; 11. a spring; 12. a piezoelectric stack; 13. a force amplifier.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The invention aims to provide a piezoelectric friction-electricity hybrid energy collector for wave motion, which solves the problems in the prior art and realizes effective collection of wave motion energy.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 3: the embodiment provides a piezoelectric friction-electricity hybrid energy collector 100 for wave motion, which comprises a shell 1, a piezoelectric module and two friction-electricity modules, wherein the shell 1 is cylindrical.
The two triboelectric modules are respectively arranged at two openings of the housing 1. Each friction electric module comprises a propeller 2, an outer end cover 4, a rotating disc 5 and an inner end cover 6 which are sequentially distributed from outside to inside, the outer end cover 4 and the inner end cover 6 are respectively and fixedly connected with the shell 1, the outer end cover 4 and the shell 1 are sealed, the propeller 2 and the rotating disc 5 are respectively and fixedly connected with a rotating shaft 3, and the rotating shaft 3, the propeller 2 and the rotating disc 5 are coaxial. The rotating shaft 3 penetrates through the outer end cover 4, the rotating shaft 3 is connected with the outer end cover 4 in a sealing mode, the rotating shaft 3 is in running fit with the outer end cover 4, the rotating shaft 3 and the outer end cover 4 are sealed, a fence friction layer 7 is fixedly arranged on one side, facing the inner end cover 6, of the rotating disc 5 and one side, facing the rotating disc 5, of the inner end cover 6, and when the rotating disc 5 rotates relative to the inner end cover 6, the fence friction layer 7 on the rotating disc 5 and the fence friction layer 7 on the inner end cover 6 rub to generate electric energy.
A piezoelectric module is built into the housing 1, which is located between the two triboelectric modules. The piezoelectric module comprises a connecting shaft 8, a linear bearing 9, a mass block 10 and two force amplifiers 13, wherein the two force amplifiers 13 are fixedly connected with the inner wall of the shell 1 respectively, the two force amplifiers 13 are fixedly connected through the connecting shaft 8, the linear bearing 9 is slidably sleeved on the connecting shaft 8, a spring 11 sleeved on the connecting shaft 8 is arranged between the linear bearing 9 and each force amplifier 13, the mass block 10 is fixedly arranged on the linear bearing 9, and a piezoelectric stack 12 is embedded in each force amplifier 13. The housing 1 is provided with one through groove corresponding to each force amplifier 13, the force amplifiers 13 are arranged in the corresponding through grooves, and the force amplifiers 13 are connected with the housing 1 through bolts. The axial direction of the connecting shaft 8 is perpendicular to the axial direction of the housing 1.
The force amplifier 13 is a rhombic frame, and the material of the force amplifier 13 is metal; the force amplifier 13 can produce extremely slight elastic deformations. When the two ends of the force amplifier 13 exert pressure on the piezoelectric stack 12, the piezoelectric stack 12 discharges due to the piezoelectric effect. The force amplifier 13 is a widely used component for collecting piezoelectric energy, and will not be described in detail here.
The operation of the piezoelectric hybrid triboelectric energy collector 100 for wave motion of the present embodiment is as follows:
the piezoelectric friction electricity hybrid energy collector 100 for wave motion in the embodiment is placed in waves, the propeller 2 can be driven to rotate during wave motion, the propeller 2 drives the rotating disc 5 to rotate through the rotating shaft 3, and the fence friction layer 7 on the inner side of the rotating disc 5 and the fence friction layer 7 on the outer side of the inner end cover 6 rub to generate electric energy, so that wave energy is collected; while the piezoelectric friction electric hybrid energy collector 100 for wave motion moves along with waves, the mass block 10 and the linear bearing 9 slide relative to the connecting shaft 8, so that the force amplifier 13 is impacted by the spring 11, the force amplifier 13 generates slight elastic deformation after being impacted, pressure is generated on the piezoelectric stack 12 arranged in the force amplifier, and the piezoelectric stack 12 discharges electricity due to piezoelectric effect, so that wave energy is collected.
The piezoelectric-triboelectric hybrid energy collector 100 for wave motion of the present embodiment combines the piezoelectric module and the triboelectric module to obtain a lower resonant frequency (lower than 10Hz), so as to collect energy at a lower vibration frequency, thereby achieving the purpose of collecting low-frequency wave motion energy. The piezoelectric friction electricity hybrid energy collector 100 for wave motion of the embodiment combines the piezoelectric energy collection technology and the friction electricity energy collection technology, and the comprehensive performance of the hybrid power system is superior to that of each single hybrid power system.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. A piezoelectric triboelectric hybrid energy harvester for wave motion, characterized by: the piezoelectric module comprises a shell, a piezoelectric module and a triboelectric module, wherein the triboelectric module comprises a propeller, an outer end cover, a rotating disc and an inner end cover which are sequentially distributed from outside to inside, the outer end cover and the inner end cover are respectively and fixedly connected with the shell, the outer end cover and the inner end cover are sealed with the shell, the propeller and the rotating disc are respectively and fixedly connected with a rotating shaft, the rotating shaft penetrates through the outer end cover and is in rotating fit with the outer end cover, a fence friction layer is respectively and fixedly arranged on one side of the rotating disc facing the inner end cover and one side of the inner end cover facing the rotating disc, and when the rotating disc rotates relative to the inner end cover, the fence friction layer on the rotating disc and the fence friction layer on the inner end cover generate electric energy through friction; the piezoelectric module is built-in the shell, the piezoelectric module includes connecting axle, linear bearing, quality piece and two force amplifier, two force amplifier respectively with the inner wall of shell links firmly, two force amplifier passes through the connecting axle links firmly, linear bearing slip cover is established on the connecting axle, linear bearing and every all be provided with a cover between the force amplifier and establish connect epaxial spring, the quality piece sets firmly on linear bearing, every all inlay in the force amplifier and be equipped with the piezoelectric stack.
2. The piezoelectric triboelectric hybrid energy harvester for wave motion according to claim 1, characterized in that: the shell is cylindrical; the number of the triboelectric modules is two, and the two triboelectric modules are respectively arranged at two openings of the shell.
3. The piezoelectric triboelectric hybrid energy harvester for wave motion according to claim 1, characterized in that: the force amplifier is a rhombic frame, and the material of the force amplifier is metal.
4. The piezoelectric triboelectric hybrid energy harvester for wave motion according to claim 1, characterized in that: the rotating shaft is connected with the outer end cover in a sealing mode.
5. A piezoelectric hybrid energy harvester for wave motion as defined in claim 2, wherein: the piezoelectric module is located between two of the triboelectric modules.
6. The piezoelectric triboelectric hybrid energy harvester for wave motion according to claim 1, characterized in that: the shell is provided with a through groove corresponding to each force amplifier, the force amplifiers are arranged in the corresponding through grooves, and the force amplifiers are connected with the shell through bolts.
7. The piezoelectric triboelectric hybrid energy harvester for wave motion according to claim 1, characterized in that: the rotating shaft, the propeller and the rotating disc are coaxial.
8. The piezoelectric triboelectric hybrid energy harvester for wave motion according to claim 1, characterized in that: the axial direction of the connecting shaft is perpendicular to the axial direction of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110709836.9A CN113241967A (en) | 2021-06-25 | 2021-06-25 | Piezoelectric friction electricity hybrid energy collector for wave motion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110709836.9A CN113241967A (en) | 2021-06-25 | 2021-06-25 | Piezoelectric friction electricity hybrid energy collector for wave motion |
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| Publication Number | Publication Date |
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| CN113241967A true CN113241967A (en) | 2021-08-10 |
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| CN202110709836.9A Pending CN113241967A (en) | 2021-06-25 | 2021-06-25 | Piezoelectric friction electricity hybrid energy collector for wave motion |
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|---|---|---|---|---|
| CN109600073A (en) * | 2019-01-10 | 2019-04-09 | 长春工业大学 | A kind of hydraulic blow formula double rotors power generator |
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| CN110417186A (en) * | 2019-08-06 | 2019-11-05 | 大连海事大学 | A kind of electromagnetism-friction nanometer stream generating device |
| CN110557045A (en) * | 2019-09-20 | 2019-12-10 | 长春工业大学 | Friction-piezoelectric-electromagnetic combined type energy harvester for low-speed rotary motion |
| CN110594103A (en) * | 2019-10-24 | 2019-12-20 | 苏州大学 | Wind energy and rain drop energy combined type energy collecting device |
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| CN111564946A (en) * | 2020-06-15 | 2020-08-21 | 河南工业大学 | Low-frequency broadband electromagnetic-piezoelectric-friction combined vibration energy collector |
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| CN112780480A (en) * | 2021-03-04 | 2021-05-11 | 浙大宁波理工学院 | Piezoelectric and electromagnetic combined type power generation device for capturing wave energy |
| CN112865605A (en) * | 2021-03-04 | 2021-05-28 | 浙大宁波理工学院 | Array type piezoelectric power generation equipment for capturing wave energy |
-
2021
- 2021-06-25 CN CN202110709836.9A patent/CN113241967A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110943643A (en) * | 2018-09-21 | 2020-03-31 | 北京纳米能源与系统研究所 | Friction nanometer energy harvester |
| CN109600073A (en) * | 2019-01-10 | 2019-04-09 | 长春工业大学 | A kind of hydraulic blow formula double rotors power generator |
| CN110138260A (en) * | 2019-06-12 | 2019-08-16 | 苏州大学 | A kind of ambient mechanical energy composite collection reforming unit |
| CN110417186A (en) * | 2019-08-06 | 2019-11-05 | 大连海事大学 | A kind of electromagnetism-friction nanometer stream generating device |
| CN110557045A (en) * | 2019-09-20 | 2019-12-10 | 长春工业大学 | Friction-piezoelectric-electromagnetic combined type energy harvester for low-speed rotary motion |
| CN110594103A (en) * | 2019-10-24 | 2019-12-20 | 苏州大学 | Wind energy and rain drop energy combined type energy collecting device |
| CN111564946A (en) * | 2020-06-15 | 2020-08-21 | 河南工业大学 | Low-frequency broadband electromagnetic-piezoelectric-friction combined vibration energy collector |
| CN112532107A (en) * | 2020-12-07 | 2021-03-19 | 上海大学 | Human body wearable energy collector based on piezoelectric stack and frequency modulation effect |
| CN112780480A (en) * | 2021-03-04 | 2021-05-11 | 浙大宁波理工学院 | Piezoelectric and electromagnetic combined type power generation device for capturing wave energy |
| CN112865605A (en) * | 2021-03-04 | 2021-05-28 | 浙大宁波理工学院 | Array type piezoelectric power generation equipment for capturing wave energy |
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Application publication date: 20210810 |
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