CN108258934A - A kind of bistable state piezoelectricity-electromagnetic power generation apparatus using fluids within pipes kinetic energy - Google Patents

A kind of bistable state piezoelectricity-electromagnetic power generation apparatus using fluids within pipes kinetic energy Download PDF

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Publication number
CN108258934A
CN108258934A CN201810205549.2A CN201810205549A CN108258934A CN 108258934 A CN108258934 A CN 108258934A CN 201810205549 A CN201810205549 A CN 201810205549A CN 108258934 A CN108258934 A CN 108258934A
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China
Prior art keywords
impeller
fluid line
bistable state
piezoelectric element
energy
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CN201810205549.2A
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Chinese (zh)
Inventor
董景石
田大越
陈全渠
徐智
关志鹏
范尊强
吴越
杨志刚
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Jilin University
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Jilin University
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Priority to CN201810205549.2A priority Critical patent/CN108258934A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/18Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
    • H02N2/185Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators using fluid streams
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K35/00Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
    • H02K35/02Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems

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  • Engineering & Computer Science (AREA)
  • Power Engineering (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 kind of bistable state piezoelectricity electromagnetic power generation apparatus using fluids within pipes kinetic energy, structure mainly includes:Fluid line, shell, bistable state piezoelectric element, coil, impeller assembly, fixing axle, prisoner's energy circuit.Impeller is equipped among fluid line, impeller is fixed on fluid line inner wall by fixed link, and impeller is equipped with 4 magnet pieces.Fluid line outer surface is equipped with multiturn wire coil, and coil both sides are connect with prisoner's energy circuit;Shell, to be fixedly connected, is equipped with upper and lower two bistable state piezoelectric elements with fluid line between fluid line and shell, flexible piezoelectric member MFC, MFC the two poles of the earth are connect with prisoner's energy circuit, and piezoelectric element is fixedly mounted on the boss of housing;The kinetic energy of pipeline fluid is converted into electric energy by the present invention using piezoelectric element and electromagnetic component, and pipeline is without trepanning, electrification component and fluid isolation, no leakage, danger of hazardous electrical discharges;It is simple in structure, generating effect is good with reference to two kinds of generation modes of piezoelectricity and electromagnetism.

Description

A kind of bistable state piezoelectricity-electromagnetic power generation apparatus using fluids within pipes kinetic energy
Technical field:
The present invention relates to energy regeneratings and field of new energy technologies, and the double of fluids within pipes kinetic energy are utilized more particularly to a kind of Stable state piezoelectricity-electromagnetic power generation apparatus.
Background technology:
In recent years, scientific and technical progress is maked rapid progress, social economy develops rapidly, and energy shortage problem highlights gradually Come, simultaneously as environmental pollution caused by energy source use becomes a common difficulty in the puzzlement whole world.For this purpose, related scientific research people Member constantly carries out cleaning seeking for novel energy.For example, the gas-to electricity of wind energy and the gas-to electricity of vibrational energy are carried out It explores.In terms of the gas-to electricity of vibrational energy, mainly there are piezoelectric vibration power generation technology, electric and magnetic oscillation generation technology and electrostatic at present Three kinds of vibrating power-generation technology, wherein, piezoelectric type power generating device have simple in structure, green non-pollution, can be under low-power consumption operating mode It lasting energy supply and the outstanding features such as easily merges with modern micro electronmechanical product, is paid close attention to by various circles of society.
Fluid is the general name of gas and liquid, and air and water are most common fluids.And in daily life and production activity Middle fluid is transported and is used in various pipelines.Rationally recycle fluid kinetic energy power generation so that for low-power consumption electricity Subcomponent power supply has important practical significance.Some pipe generators occurred at present, such as application number 201320309273.5 By " the common water inlet pipe stream generating device " of red et al. the inventions of Shanghai Ocean University Song Qiu, application number 201410793559.4 by Open " power generation water pipe " of jasmine invention etc..All just the movement of impeller rotating shaft is exported by the way of being punched in pipe side wall, into And electromagnetic generator is driven to generate electricity, destroy original pipeline integrity.Fluid leakage even danger of hazardous electrical discharges is also easy to produce, so the knot Structure can not be applied inflammable, toxic or to the stringent situation of seal requirement in fluid.Application number 201610748586.9 is by Hefei " a kind of multi-direction fluid energy collection device of bistable state piezoelectric type " that Deng China of polytechnical university et al. proposes is using bistable state flexibility Piezoelectric patches collects liquid flowing energy, and simple in structure, generating effect is preferable.It is defeated but due to being limited its flexible cantilever beam electrification structure It is low to go out voltage signal frequency, and when fluid velocity is fast may generate " locked " phenomenon:Piezoelectric patches cannot by flow stream pressure locking Movement, can not carry out stable electric generation.
Invention content:
The present invention is in view of the above-mentioned problems, propose a kind of bistable state piezoelectricity-Electromagnetic generation using fluids within pipes kinetic energy Device, for collecting the kinetic energy of fluid in pipeline in production and living.Improve existing pipeline fluid electric generating device destroy original pipeline, It is combined there are the defects of leakage danger of hazardous electrical discharges, and using two kinds of generation modes of bistable state piezo-electric generating component and coil, improves hair Electric effect.The power generator can be to be not easy to replace the low-power consumption detection of power supply, monitoring electronic component power supply.
The invention is realized by the following technical scheme:
A kind of bistable state piezoelectricity-electromagnetic power generation apparatus using fluids within pipes kinetic energy, it is characterised in that:Structure includes: Fluid line, shell, bistable state piezoelectric element, coil, impeller assembly, fixed link, prisoner's energy circuit.The fluid line external table Face is additionally provided with multiturn wire coil, and coil both ends are connect with prisoner's energy circuit;The inner hub location of the fluid line is equipped with leaf Wheel, impeller are pressed on fluid line inner wall by fixing axle, and impeller is equipped with even number magnet piece, and impeller is under the promotion of fluid It can be freely rotated around fixing axle;The shell, to be fixedly connected, is equipped with up and down with fluid line between fluid line and shell Two bistable state piezoelectric elements, flexible piezoelectric member MFC, MFC the two poles of the earth are connect with prisoner's energy circuit, and piezoelectric element is fixedly mounted on On the boss of housing.During wheel rotation, the magnet piece for being arranged on impeller periphery rotates therewith and causes changes of magnetic field, coil cutting magnetic Feel line and generate electric current, while bistable state piezoelectric element switches between the one the second stable states, MFC, which is deformed upon, to be produced electricl energy;Institute Interface is equipped with screw thread before and after stating fluid line, can closely be connect with extraneous pipeline;
The impeller tightens knob by adjusting in fixing axle, makes fixed shaft compression fluid line inner wall both ends, so as to Impeller is fixed on fluid line inner hub location, not in fluid line side-wall hole.
The impeller has been evenly arranged even number magnetic patch along outer circumference, and adjacent magnets block pole orientation is opposite.
The bistable state piezoelectric element is in the respectively setting 1 of fluid line upper-lower position, the magnet piece magnetic pole on piezoelectric element Direction is identical, is all N poles towards impeller.
It is the space of real fluid flowing inside fluid line of the present invention, piezo-electric generating component is set with wire coil It puts in the space between shell and fluid line, is isolated with fluid line internal flow, fluid leakage or leakage will not occur Electrical phenomena.The both ends substrate of the bistable state piezoelectric element is fixed by the convex block on shell, and makes the magnet on piezoelectric element The magnet piece of block and impeller keeps appropriate interval, ensures that piezoelectric element can smoothly be cut between the first stable state and the second stable state It changes.The impeller is equipped with fixing axle by centre position, by rotating the length for tightening knob and adjusting fixing axle in fixing axle, Fixed both ends of the shaft is made to be pressed on fluid line inner wall, and then fixes impeller in the case where not destroying pipeline.
Beneficial effects of the present invention:
A kind of bistable state piezoelectricity-electromagnetic power generation apparatus using fluids within pipes kinetic energy proposed by the present invention, passes through adjusting It tightens knob and changes fixed shaft length by impeller fixed -piping inner wall, do not destroy the structure of original pipeline, fluid will not be generated and let out Leakage or leaky are applicable to the fluid collection of energy in special circumstances such as toxic, volatile, inflammable and utilize;Bistable state pressure Two kinds of generation modes of electrical component and wire coil combine, and improve energy harvesting capabilities, generating effect is good.
Description of the drawings:
Fig. 1 is the three-dimensional axonometric drawing of the present invention
Fig. 2 is front view of the present invention along duct orientation
Fig. 3 is the three-dimensional axonometric drawing of piezoelectricity-electromagnetic power generation component of the present invention
Wherein 1- fluid lines, 2- shells, 3- bistable states piezoelectric element, 4- coils, 5- impeller assemblies, 6- fixed links, 7- Prisoner can circuit
Specific embodiment:
In order to be more clear the purpose of the present invention, technical solution, the present invention is carried out in conjunction with attached drawing further detailed Explanation.
As shown in Figure 1, a kind of bistable state piezoelectricity-Electromagnetic generation dress using fluids within pipes kinetic energy of the present invention It puts, primary structure includes:Fluid line (1), bistable state piezoelectric element (3), coil (4), impeller assembly (5), is consolidated shell (2) Fixed pole (6), prisoner can circuits (7).The inner hub location of the fluid line (1) is equipped with impeller (5), and impeller (5) passes through fixation Axis (6) is fixed on fluid line (1) inner wall, and impeller (5) is equipped with even number magnet piece, and impeller (5) can under the promotion of fluid To be freely rotated around fixing axle (4);Fluid line (1) outer surface is equipped with multiturn wire coil (4), coil (4) both ends It is connect with prisoner's energy circuit (7), wire coil coiling length can rotate impeller magnet and produce only slight beyond the diameter of impeller (5) Raw changes of magnetic field is made full use of, and the electric energy that coil cutting magnetic induction line generates is stored in the electricity in prisoner's energy circuit by conducting wire Hold;The shell (2) to be fixedly connected, is equipped with upper and lower two pairs with fluid line (1) between fluid line (1) and shell (2) Stable state piezoelectric element (3), flexible piezoelectric member MFC, MFC the two poles of the earth are connect with prisoner's energy circuit, and piezoelectric element is fixedly mounted on shell On the boss of body.During wheel rotation, the magnet piece for being arranged on impeller (5) periphery rotates therewith and causes changes of magnetic field, and coil (4) is cut It cuts magnetic induction line and generates electric current, while bistable state piezoelectric element switches between the one the second stable states, MFC deforms upon generation electricity Energy;Interface is equipped with screw thread before and after the fluid line (1), can closely be connect with extraneous pipeline;
Further, impeller (5) described in attached drawing 1 adjusts fixing axle (6) by the knob that tightens adjusted in fixing axle (6) Length, make the both ends of fixed shaft compression fluid line inner wall, so as to which impeller (5) is fixed on fluid line (1) inside center Position not in fluid line side-wall hole, ensure that the integrality of pipeline.
As shown in Figure 2, the impeller (5) has been evenly arranged even number magnetic patch, adjacent magnets block magnetic pole along outer circumference Direction is opposite.
Further, the bistable state piezoelectric element (3) respectively sets 1, on piezoelectric element in fluid line upper-lower position Magnet piece pole orientation it is identical, be all N poles towards impeller (5).When impeller is started rotation by fluid excitation, due to adjacent magnetic patch Pole orientation on the contrary, bistable state piezoelectric element under attraction-repulsion magnetic force alternating action in the first stable state and the second stable position Between constantly switch, the MFC patches being attached on substrate, which deform, to be produced electricl energy, and pass through conducting wire by power storage prisoner can electricity In case using in road.
The present invention the course of work be:After installation is complete, after fluid starts flowing in the duct, impeller (5) is flowed Body promotion starts to rotate, and the faster impeller of fluid flow rate (5) rotating speed is also accordingly accelerated, and is uniformly arranged on impeller periphery, magnetic pole side It is rotated therewith to 4 magnet pieces being arranged alternately, causes the variation of space magnetic field, be wrapped in the metal of fluid line (1) outer wall Sensing electric current deposit prisoner is generated in coil (4) can circuit (7);At the same time bistable state piezoelectric element (3) is handed in attraction-repulsion For constantly switching between the first stable state and the second stable position under the magneticaction of variation, the MFC patches being attached on substrate It deforms and produces electricl energy deposit prisoner's energy circuit (7).The recycling of energy is completed using two kinds of generation modes of piezoelectricity and electromagnetism, Fluid flow rate, which changes, can also continue to generate electric power, and the electric energy of storage can be used for the detection for low-power consumption, monitoring sensing Device is powered.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.

Claims (4)

1. a kind of bistable state piezoelectricity-electromagnetic power generation apparatus using fluids within pipes kinetic energy, it is characterised in that:Structure includes:Stream Body pipeline (1), shell (2), bistable state piezoelectric element (3), coil (4), impeller assembly (5), fixed link (6), prisoner's energy circuit (7);Interface is equipped with screw thread before and after the fluid line (1), can closely be connect with extraneous pipeline;Fluid line (1) is external Surface is additionally provided with multiturn wire coil (4), and coil (4) both sides are connect with prisoner's energy circuit (7);The inside of the fluid line (1) Center is equipped with impeller (5), and impeller (5) is pressed on fluid line (1) inner wall by fixing axle (6), and impeller (5) is equipped with even Several magnet pieces, impeller (5) can be freely rotated under the promotion of fluid around fixing axle (4);The shell (2) and fluid line (1) to be fixedly connected, upper and lower two bistable state piezoelectric elements (3), flexible piezoelectric are equipped between fluid line (1) and shell (2) Element is MFC, and MFC the two poles of the earth are connect with prisoner's energy circuit, and piezoelectric element is fixedly mounted on the boss of housing;The impeller (5) turns When dynamic, the magnet piece for being arranged on impeller (5) periphery rotates therewith and surrounding magnetic field is caused to change, and then make to be arranged on pipeline external Sensing electric current is generated in coil (4), i.e., is produced electricl energy by electromagnetic induction while bistable state piezoelectric element (3) is in magneticaction Under constantly switch between first and second stable state, the MFC on its substrate is forced to deform upon, utilize piezoelectric effect generate electricity Energy.
2. a kind of bistable state piezoelectricity-electromagnetic power generation apparatus using fluids within pipes kinetic energy according to claim 1, special Sign is:The impeller (5) tightens stud by adjusting in fixing axle (6), makes fixed shaft compression fluid line inner wall both ends, So as to which impeller (5) is fixed on fluid line (1) inner hub location, not in fluid line side-wall hole.
3. a kind of bistable state piezoelectricity-electromagnetic power generation apparatus using fluids within pipes kinetic energy according to claim 1, special Sign is:The impeller (5) has been evenly arranged even number magnetic patch along outer circumference, and adjacent magnets block magnetic pole arranged direction is opposite.
4. a kind of bistable state piezoelectricity-electromagnetic power generation apparatus using fluids within pipes kinetic energy according to claim 1, special Sign is:The bistable state piezoelectric element (3) is designed with piezoelectric element (3) in fluid line upper-lower position, on piezoelectric element (3) Magnet piece magnetic pole setting direction it is identical, i.e., the same magnetic pole of all magnet pieces is both facing to impeller axis direction (5).
CN201810205549.2A 2018-03-13 2018-03-13 A kind of bistable state piezoelectricity-electromagnetic power generation apparatus using fluids within pipes kinetic energy Pending CN108258934A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109980990A (en) * 2019-03-27 2019-07-05 吉林大学 Piezoelectricity-electromagnetism hybrid-driven multiple degrees of freedom precision positioning device and control method
CN110474481A (en) * 2019-09-23 2019-11-19 赵小龙 A kind of hydraulic piezoelectricity-Electromagnetic heating electricity generation system
CN111469794A (en) * 2020-06-05 2020-07-31 金华一纵一横工业设计有限公司 Vehicle window glass crushing negative pressure positioning magnetic accelerating hammer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200925408A (en) * 2007-12-11 2009-06-16 Wen-Ho Chang Water pipe electrical generator
CN101469662A (en) * 2007-12-25 2009-07-01 张文和 Waterpipe generator
TWM365409U (en) * 2009-03-19 2009-09-21 You-Ji Huang Electricity generation device installed in fluid pipe
CN101825051A (en) * 2010-04-15 2010-09-08 吴建军 Running water pipe electricity generator and radio using running water pipe electricity generator for generating electricity
CN102790551A (en) * 2012-09-01 2012-11-21 浙江师范大学 Self-powered device for monitoring oil and gas transmission pipelines
CN107681922A (en) * 2017-10-31 2018-02-09 长春工业大学 A kind of rotary type piezoelectric harvester based on magnetic excitation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200925408A (en) * 2007-12-11 2009-06-16 Wen-Ho Chang Water pipe electrical generator
CN101469662A (en) * 2007-12-25 2009-07-01 张文和 Waterpipe generator
TWM365409U (en) * 2009-03-19 2009-09-21 You-Ji Huang Electricity generation device installed in fluid pipe
CN101825051A (en) * 2010-04-15 2010-09-08 吴建军 Running water pipe electricity generator and radio using running water pipe electricity generator for generating electricity
CN102790551A (en) * 2012-09-01 2012-11-21 浙江师范大学 Self-powered device for monitoring oil and gas transmission pipelines
CN107681922A (en) * 2017-10-31 2018-02-09 长春工业大学 A kind of rotary type piezoelectric harvester based on magnetic excitation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109980990A (en) * 2019-03-27 2019-07-05 吉林大学 Piezoelectricity-electromagnetism hybrid-driven multiple degrees of freedom precision positioning device and control method
CN109980990B (en) * 2019-03-27 2022-04-01 吉林大学 Piezoelectric-electromagnetic hybrid drive type multi-degree-of-freedom precision positioning device and control method
CN110474481A (en) * 2019-09-23 2019-11-19 赵小龙 A kind of hydraulic piezoelectricity-Electromagnetic heating electricity generation system
CN111469794A (en) * 2020-06-05 2020-07-31 金华一纵一横工业设计有限公司 Vehicle window glass crushing negative pressure positioning magnetic accelerating hammer

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