CN110112954B - Wind power rotary type piezoelectric-electromagnetic composite power generation device - Google Patents
Wind power rotary type piezoelectric-electromagnetic composite power generation device Download PDFInfo
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- CN110112954B CN110112954B CN201910419512.4A CN201910419512A CN110112954B CN 110112954 B CN110112954 B CN 110112954B CN 201910419512 A CN201910419512 A CN 201910419512A CN 110112954 B CN110112954 B CN 110112954B
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- 238000010248 power generation Methods 0.000 title claims abstract description 30
- 239000002131 composite material Substances 0.000 title claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 239000000919 ceramic Substances 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims abstract 2
- 239000000428 dust Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims 2
- 230000006698 induction Effects 0.000 claims 1
- 230000000737 periodic effect Effects 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000005381 potential energy Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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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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Abstract
本发明公布了一种风力旋转式压电‑电磁复合发电装置，涉及了压电‑电磁复合发电领域和新能源利用领域。它可以在低速风场下，利用风能和磁铁之间的磁力,使得压电片产生正压电效应，线圈切割磁感线，同时对外输出电压，解决低速风场下的发电效率低、能源利用率低的问题。本发明主要由扇叶、传动轴、陶瓷压电片、磁铁、线圈、弹簧、弹性支撑层组成。所述扇叶在风的作用下，使动磁铁与定磁铁之间的磁力作用呈周期性变化，刺激陶瓷压电片与线圈持续地作用。利用清洁能源（风能）为低能耗设备供电，可以有效避免环境污染、资源浪费等问题，并且本发明可以提高环境恶劣地区（丛林、山谷、山坡等）对低能耗电子产品的供电质量。
The invention discloses a wind-rotating piezoelectric-electromagnetic composite power generation device, which relates to the field of piezoelectric-electromagnetic composite power generation and the field of new energy utilization. It can use the magnetic force between the wind energy and the magnet in the low-speed wind field to make the piezoelectric sheet produce a positive piezoelectric effect, the coil cuts the magnetic field line, and simultaneously outputs the voltage to the outside, so as to solve the problem of low power generation efficiency and energy utilization in the low-speed wind field. low rate problem. The invention is mainly composed of a fan blade, a transmission shaft, a ceramic piezoelectric sheet, a magnet, a coil, a spring and an elastic support layer. Under the action of the wind, the fan blade makes the magnetic force between the moving magnet and the fixed magnet change periodically, and stimulates the ceramic piezoelectric sheet and the coil to act continuously. Using clean energy (wind energy) to supply power to low energy consumption equipment can effectively avoid problems such as environmental pollution and resource waste, and the invention can improve the quality of power supply to low energy consumption electronic products in harsh environments (jungles, valleys, hillsides, etc.).
Description
Technical Field
The invention belongs to the field of piezoelectric-electromagnetic composite power generation, and particularly relates to a wind power rotary piezoelectric-electromagnetic composite power generation device.
Background
With the rapid development of the electromechanical industry, the wireless sensor technologies such as micro-electromechanical systems (MEMS), low power consumption embedded technologies and the like tend to be integrated, intelligent and miniaturized more and more. Therefore, higher demands are put on the energy supply industry, but as the traditional energy supply industry is still in a standstill, the defects of battery power supply (small capacity, short service life, easy environmental limitation, difficult recovery and easy heavy metal pollution) are gradually revealed, and the development of the wireless sensing technology is severely limited. The utilization of clean energy to power low-energy electronic devices has become an important research direction.
The energy (wind energy, solar energy, tidal energy, vibration energy and the like) existing in the nature is converted into electric energy to supply power to equipment, so that the energy harvester is an ideal energy harvesting method, and can be designed with high energy conversion efficiency by combining with some intelligent materials (PZT, MFC and the like). Many researches have been made on piezoelectric power generation and electromagnetic power generation technologies, but many researchers are troubled about how to improve power generation efficiency, reduce resonance frequency band, and improve broadband technologies. In view of the above, we propose a wind power rotary piezoelectric-electromagnetic composite power generation device. The magnetic force between the moving magnet and the fixed magnet can be changed periodically by utilizing wind energy, and the ceramic piezoelectric sheet and the coil are stimulated to continuously act. The invention utilizes clean energy (wind energy) to supply power for low-energy consumption equipment, can effectively avoid the problems of environmental pollution, resource waste and the like, and can improve the power supply quality of low-energy consumption electronic products in severe environment areas (jungles, valleys, hills and the like).
Disclosure of Invention
The invention provides a wind power rotary piezoelectric-electromagnetic composite power generation device, which aims to solve the problems of low power generation efficiency, low energy utilization rate, difficult power supply in a severe environment and the like in a low-speed wind field.
A wind power rotary piezoelectric-electromagnetic composite power generation device comprises fan blades (1), a dust cover (2), a base (3), a guide rod (4), a stator base (5), a bearing (6), a spring (7), a coil (8), a magnet (9), a rotor base (10), a positioning hole (11), an elastic supporting beam (13), a stator guide groove (15), a ceramic piezoelectric plate (17), a transmission shaft (18) and a limiting plate (19); the magnets (9) are adhered to the elastic supporting beams (13) to form elastic vibrators, the total number of the elastic vibrators is 6, and the elastic vibrators are circumferentially arrayed on the rotor base (10) to form a rotor (16) of the power generation device; the magnets (9) and the ceramic piezoelectric sheets (17) are adhered to one end of the elastic supporting beam (13) to form 6 piezoelectric vibrators in total, the piezoelectric vibrators are circumferentially arrayed on the stator base (5), and the springs (7) are fixed on the bottom surface of the stator base (5) to form a stator (12) of the power generation device; the coils (8) are arranged on the inner wall of the base (3) in a circumferential array of 6 in total, and are tightly adhered with the inner wall to form an array coil group (14); the rotor (16) is arranged on the transmission shaft (18) and is axially positioned through a positioning hole (11) in the rotor base (10); stator (12) cover is on transmission shaft (18), is clearance fit with the transmission shaft, carries out axial positioning and axial spacing through guide bar (4) and limiting plate (19) on stator base (5), guarantees that the stator can be at epaxial reciprocating motion normally to relative rotation can not take place for magnet (9) on stator (12) and coil (8).
The invention has the beneficial effects that: clean energy (wind energy) is utilized to supply power for low-energy consumption equipment, so that the problems of environmental pollution, resource waste and the like can be effectively avoided, and the power supply quality of low-energy consumption electronic products in severe environment areas (jungles, valleys, hills and the like) can be improved. The invention can generate electricity in a low-speed wind field, and the application range is enlarged.
Drawings
FIG. 1 is an overall sectional view of the present power plant;
FIG. 2 is a perspective view of a stator of the power generation device;
FIG. 3 is a transmission shaft of the power generation device;
FIG. 4 is a perspective view of a coil array of the present power generation device;
fig. 5 is a perspective view of a rotor of the power generation device.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
The specific implementation mode is as follows: the wind power rotary piezoelectric-electromagnetic composite power generation device comprises fan blades (1), a dust cover (2), a base (3), a guide rod (4), a stator base (5), a bearing (6), a spring (7), a coil (8), a magnet (9), a rotor base (10), a positioning hole (11), an elastic supporting beam (13), a stator guide groove (15), a ceramic piezoelectric plate (17), a transmission shaft (18) and a limiting plate (19); the magnets (9) are adhered to the elastic supporting beams (13) to form elastic vibrators, the total number of the elastic vibrators is 6, and the elastic vibrators are circumferentially arrayed on the rotor base (10) to form a rotor (16) of the power generation device; the magnets (9) and the ceramic piezoelectric sheets (17) are adhered to one end of the elastic supporting beam (13) to form 6 piezoelectric vibrators in total, the piezoelectric vibrators are circumferentially arrayed on the stator base (5), and the springs (7) are fixed on the bottom surface of the stator base (5) to form a stator (12) of the power generation device; the coils (8) are arranged on the inner wall of the base (3) in a circumferential array of 6 in total, and are tightly adhered with the inner wall to form an array coil group (14); the rotor (16) is arranged on the transmission shaft (18) and is axially positioned through a positioning hole (11) in the rotor base (10); stator (12) cover is on transmission shaft (18), is clearance fit with the transmission shaft, carries out axial positioning and axial spacing through guide bar (4) and limiting plate (19) on stator base (5), guarantees that the stator can be at epaxial reciprocating motion normally to relative rotation can not take place for magnet (9) on stator (12) and coil (8).
The working principle is as follows: under the excitation of wind, the fan blades (1) drive the transmission shaft (18) to rotate together, and the transmission shaft (18) is static relative to the rotor (16) and is driven to rotate together with the fan blades (1); in the rotation process of the rotor (16), the magnet (9) adhered to the free end of the piezoelectric vibrator and the magnet on the stator (12) are crossed and met continuously, and as shown in figure 1, the repulsive force between the two groups of magnets can be changed periodically. When the repulsion force between the magnets is large enough to enable the spring (7) to deform, the stator (12) can axially displace under the action of the guide rod (4) and the guide groove (15), the magnetic repulsion force is changed from small to large, and when the magnetic repulsion force is changed from large to small, the elastic potential energy of the spring is correspondingly changed; when the repulsion force is reduced, the elastic potential energy accumulated by the spring (7) is released to drive the stator (12) to move upwards; when the guide rod (4) with kinetic energy moves to the position of the limiting plate (19), the guide rod and the limiting plate (19) are impacted, the frequency of the elastic vibrator is changed after the impact, the frequency of the piezoelectric vibrator is changed, and the operation is repeated. Wherein the spring (7) plays an indispensable role in the circulation process.
As can be clearly seen from fig. 2 and 5, the structure of the stator and the rotor, the guide bar (4) on the stator (12) not only plays a guiding role, but also can limit the circumferential rotation of the stator (12), and is also an important structure for widening the frequency band.
In the above embodiments, the wind power rotary piezoelectric-electromagnetic hybrid power generation device has the advantages of long service life, low resonance frequency, wide resonance frequency band, and easy implementation.
Claims (3)
1. A wind power rotary piezoelectric-electromagnetic composite power generation device comprises fan blades, a dust cover, a base, a guide rod, a stator base, a bearing, a spring, a coil, a magnet, a rotor base, a positioning hole, an elastic supporting beam, a stator guide groove, a ceramic piezoelectric sheet, a transmission shaft and a limiting plate; the magnets are adhered to the elastic supporting beams to form 6 elastic vibrators in total, and the elastic vibrators are circumferentially arrayed on the rotor base to form a rotor of the power generation device; the magnets and the ceramic piezoelectric sheets are adhered to one end of the elastic supporting beam to form 6 piezoelectric vibrators, the piezoelectric vibrators are circumferentially arrayed on the stator base, and the springs are fixed on the bottom surface of the stator base to form a stator of the power generation device; the coil, 6 totally, the circumference array is closely pasted together with the inner wall on the inner wall of base, has constituted array coil group, and the magnet diameter on the stator is less than the internal diameter of coil to inside being in the coil, the spring can stretch out and draw back under the magnetic repulsion effect, and the spring can drive the guide bar on the stator along the guide way axial displacement that has inlayed the limiting plate, takes place the striking back with the limiting plate, widens power generation facility's vibration frequency.
2. The wind power rotary piezoelectric-electromagnetic hybrid power generation device according to claim 1, wherein the rotor is mounted on the transmission shaft and axially positioned through positioning holes on the rotor base; the stator is sleeved on the transmission shaft and is in clearance fit with the transmission shaft, and the stator is guaranteed to normally do reciprocating motion on the shaft by carrying out axial positioning and axial limiting through the guide rod and the limiting plate on the stator base, and the magnet on the stator and the coil cannot rotate relatively.
3. The wind power rotary piezoelectric-electromagnetic composite power generation device according to claim 1, wherein the free end magnet of the spring on the stator generates axial displacement under the action of periodic magnetic force, so that the array coil group cuts the magnetic induction lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910419512.4A CN110112954B (en) | 2019-05-20 | 2019-05-20 | Wind power rotary type piezoelectric-electromagnetic composite power generation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910419512.4A CN110112954B (en) | 2019-05-20 | 2019-05-20 | Wind power rotary type piezoelectric-electromagnetic composite power generation device |
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| CN110112954A CN110112954A (en) | 2019-08-09 |
| CN110112954B true CN110112954B (en) | 2021-04-20 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111064340B (en) * | 2020-01-15 | 2022-04-19 | 山东理工大学 | A Wind-induced Vibration Electromagnetic Power Generation Device Based on Environmental Excitation in All Wind Directions |
| CN113175410B (en) * | 2021-06-18 | 2022-08-16 | 山东理工大学 | Full-wind-direction wind column power generation device |
| CN113794327B (en) * | 2021-09-27 | 2023-12-15 | 山东理工大学 | A wind-driven reciprocating piezoelectric-electromagnetic composite power generation device |
| CN114542368B (en) * | 2022-02-21 | 2024-01-23 | 国家海洋技术中心 | Wave energy collection device |
| CN114483437B (en) * | 2022-02-22 | 2024-08-16 | 青岛科技大学 | A rotating wind power generation device based on piezoelectric ceramics |
| CN114884399A (en) * | 2022-06-24 | 2022-08-09 | 山东理工大学 | Full wind direction piezoelectricity-electromagnetism composite array power generation facility |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102710169B (en) * | 2012-06-01 | 2015-09-23 | 浙江师范大学 | Based on the suspension type vibration energy accumulator of multiple pressure electric tachometer indicator series connection |
| DE102012106376B4 (en) * | 2012-07-16 | 2016-09-08 | Gsi Helmholtzzentrum Für Schwerionenforschung Gmbh | Device for generating energy with piezo elements |
| CN103427467B (en) * | 2013-08-15 | 2015-04-08 | 大连理工大学 | Rotary piezoelectric power generation charger driven by wind force |
| CN103684047B (en) * | 2013-12-18 | 2015-08-19 | 大连理工大学 | The rotary piezoelectric electromagnetism hybrid generator that a kind of wind-force drives |
| CN105634205B (en) * | 2016-03-25 | 2018-09-18 | 吉林大学 | A kind of miniature piezoelectric-Electromagnetic heating power generator |
| CN107834904B (en) * | 2017-11-24 | 2023-09-22 | 杭州电子科技大学 | A magnetic coupling piezoelectric electromagnetic composite energy harvester and its energy harvesting method |
| CN208820704U (en) * | 2018-10-29 | 2019-05-03 | 山东科技大学 | A magnet-excited piezoelectric wind power generator |
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