CN208046485U - 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
CN208046485U
CN208046485U CN201820341198.3U CN201820341198U CN208046485U CN 208046485 U CN208046485 U CN 208046485U CN 201820341198 U CN201820341198 U CN 201820341198U CN 208046485 U CN208046485 U CN 208046485U
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China
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impeller
fluid line
bistable state
piezoelectric element
fluid
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CN201820341198.3U
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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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Abstract

The utility model discloses a kind of bistable state piezoelectricity-electromagnetic power generation apparatus using fluids within pipes kinetic energy, structure includes mainly:Fluid line, shell, bistable state piezoelectric element, coil, impeller, fixing axle, prisoner's energy circuit.Impeller is equipped among fluid line, impeller is fixed on fluid line inner wall by fixing axle, and impeller is equipped with even number magnet piece.Fluid line outer surface is equipped with coil made of metal, and coil both sides are connect with prisoner's energy circuit;Shell is to be fixedly connected with fluid line, and upper and lower two bistable state piezoelectric elements are equipped between fluid line and shell, and flexible piezoelectric member the two poles of the earth MFC, MFC are connect with prisoner's energy circuit, and bistable state piezoelectric element is fixedly mounted on the boss of shell;The utility model converts the kinetic energy of pipeline fluid to electric energy 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 in conjunction with 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 utility model is related to energy regeneratings and field of new energy technologies, and fluids within pipes kinetic energy is utilized more particularly to a kind of Bistable 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, having carried out the gas-to electricity of wind energy and the gas-to electricity of vibrational energy 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 is lasting the outstanding features such as to energize and be easy to merge with modern times micro electronmechanical product, it 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.It rationally recycles the kinetic energy power generation of fluid and then is 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 It opens " the power generation water pipe " etc. of jasmine invention.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.It is also easy to produce fluid leakage even danger of hazardous electrical discharges, 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 flexible using bistable state 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 will produce " locked " phenomenon:Piezoelectric patches cannot by flow stream pressure locking Movement, can not carry out stable electric generation.
Invention content:
The utility model is in view of the above-mentioned problems, propose a kind of bistable state piezoelectricity-electromagnetism using fluids within pipes kinetic energy Power generator, the kinetic energy for collecting fluid in pipeline in production and living.It is original to improve existing pipeline fluid electric generating device destruction Pipeline, there are the defects of leakage danger of hazardous electrical discharges, and are combined using two kinds of generation modes of bistable state piezo-electric generating component and coil, carry High generating 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 utility model is achieved through the following technical solutions:
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, fixing axle, prisoner's energy circuit.The fluid line outer surface is also Equipped with coil made of metal, coil both ends are connect with prisoner's energy circuit;The inner hub location of the fluid line is equipped with impeller, Impeller is pressed on fluid line inner wall by fixing axle, and impeller is equipped with even number magnet piece two, and impeller is under the promotion of fluid It can be freely rotated around fixing axle;The shell is to be fixedly connected with fluid line, is equipped with up and down between fluid line and shell Two bistable state piezoelectric elements, piezoelectric element the two poles of the earth MFC, MFC are connect with prisoner's energy circuit, and piezoelectric element is fixedly mounted on shell Boss on;When wheel rotation, the magnet piece two that is arranged on the outside of circumference of impeller, which rotates therewith, causes changes of magnetic field, coil cutting Magnetic induction line generates electric current, while bistable state piezoelectric element switches between the first stable state and the second stable state, and MFC deforms upon generation Electric energy;Interface is equipped with screw thread before and after the fluid line, can closely be connect with extraneous pipeline;
The impeller tightens stud by adjusting in fixing axle, makes fixed shaft compression fluid line inner wall both ends, to Impeller is fixed on fluid line inner hub location, without in fluid line side-wall hole.
The impeller has been evenly arranged even number magnet piece two, the magnetic pole arranged direction of adjacent magnets block two along outer circumference On the contrary.
The bistable state piezoelectric element has a setting in upper and lower two positions of fluid line, on bistable state piezoelectric element All one magnetic pole setting directions of magnet piece it is all identical, i.e., the same magnetic pole of all magnet pieces one is both facing to impeller axle center side To.
It is the space of real fluid flowing, piezo-electric generating component and made of metal inside fluid line described in the utility model At the space that is arranged between shell and fluid line of coil in, be isolated with fluid line internal flow, fluid will not occur Leakage or leaky.The both ends substrate of the bistable state piezoelectric element is fixed by the convex block on shell, and makes piezoelectricity group The magnet piece of magnet piece and impeller on part keeps appropriate interval, ensure piezoelectric element can the first stable state and the second stable state it Between smoothly switch.The impeller is equipped with fixing axle by centre position, and fixation is adjusted by the stud that tightens rotated in fixing axle The length of axis makes fixed both ends of the shaft be pressed on fluid line inner wall, and then fixes impeller in the case where not destroying pipeline.
The beneficial effects of the utility model:
The utility model proposes a kind of bistable state piezoelectricity-electromagnetic power generation apparatus using fluids within pipes kinetic energy, pass through Adjusting tightens stud and changes fixed shaft length by impeller fixed -piping inner wall, does not destroy the structure of original pipeline, not will produce stream Body leaks or leaky, is applicable to the fluid collection of energy in special circumstances such as toxic, volatile, inflammable and utilizes;Bistable Two kinds of generation modes of state piezoelectric element 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 utility model
Fig. 2 is front view of the utility model along duct orientation
Fig. 3 is the three-dimensional axonometric drawing of the utility model piezoelectricity-electromagnetic power generation component
Wherein 1- fluid lines, 2- shells, 3- bistable states piezoelectric element, 4- coils, 5- impeller assemblies, 6- fixing axles, 7- Prisoner energy circuit 3-1- magnet pieces one, 5-1- magnet pieces two, 6-1- tighten stud
Specific implementation mode:
In order to make the purpose of this utility model, technical solution be more clear, in conjunction with attached drawing to the utility model into traveling One step is described in detail.
As shown in Fig. 1, a kind of bistable state piezoelectricity-electromagnetism hair using fluids within pipes kinetic energy described in the utility model Electric installation, primary structure include:Fluid line (1), bistable state piezoelectric element (3), coil (4), impeller (5), is consolidated shell (2) Dead axle (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 two, and impeller (5) is under the promotion of fluid It can be freely rotated around fixing axle (6);Fluid line (1) outer surface is equipped with coil (4) made of multiturn metal, coil (4) both ends are connect with prisoner's energy circuit (7), and coil (4) coiling length, can be to impeller (5) only slight beyond the diameter of impeller (5) On magnet piece two (5-1) rotation generate changes of magnetic field made full use of, coil (4) cutting magnetic induction line generate electric energy It is stored in the capacitance in prisoner's energy circuit (7) by conducting wire;The shell (2) is to be fixedly connected with fluid line (1), fluid hose Upper and lower two bistable state piezoelectric elements (3), flexible piezoelectric member the two poles of the earth MFC, MFC and prisoner are equipped between road (1) and shell (2) Energy circuit connection, bistable state piezoelectric element (3) are fixedly mounted on the boss of shell.When impeller (5) rotates, it is arranged in impeller (5) magnet piece two (5-1) of periphery, which rotates therewith, causes changes of magnetic field, and coil (4) cutting magnetic induction line generates electric current, while bistable State piezoelectric element (3) switches between the first stable state and the second stable state, and MFC is deformed upon and produced electricl energy;The fluid line (1) interface is equipped with screw thread before and after, can closely be connect with extraneous pipeline;
Further, impeller (5) described in attached drawing 1 is fixed by stud (6-1) adjustment that tightens adjusted in fixing axle (6) The length of axis (6) makes the both ends of fixed shaft compression fluid line inner wall, to which impeller (5) to be fixed in fluid line (1) Portion center, without in fluid line side-wall hole, ensure that the integrality of pipeline.
As shown in Fig. 2, the impeller (5) has been evenly arranged even number magnet piece two (5-1), adjacent magnetic along outer circumference The magnetic pole arranged direction of iron block two (5-1) is opposite.
Further, the bistable state piezoelectric element (3) is in the respectively setting 1 of fluid line upper and lower position, bistable state piezoelectricity Magnet piece one (3-1) pole orientation on component is identical, is all same pole towards impeller (5) axis direction.Impeller is swashed by fluid It encourages when starting rotation, since the pole orientation of adjacent magnets block is on the contrary, bistable state piezoelectric element is attracting --- repel magnetic force Constantly switch between the first stable state and the second stable position under alternating action, the MFC patches being attached on substrate persistently become Shape produces electricl energy, and by conducting wire by power storage prisoner can be in circuit in case using.
The course of work of the utility model is:After installation is complete, after fluid starts flowing in the duct, impeller (5) Started to rotate by fluid forces, the faster impeller of fluid flow rate (5) rotating speed is also accordingly accelerated, and the magnet of impeller periphery is uniformly arranged on Block two (5-1) rotates therewith, and causes the variation of space magnetic field, is wrapped in the coil (4) of fluid line (1) outer wall and generates sense Induced current deposit prisoner can circuit (7);At the same time bistable state piezoelectric element (3) is attracting --- and the magnetic force for repelling alternately variation is made Constantly switched between the first stable state and the second stable position with lower, the MFC patches being attached on substrate, which deform, generates electricity It can 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 becomes Changing can also continue to generate electric power, and the electric energy of storage can be used for the detection for low-power consumption, monitoring sensor power supply.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model Protection domain within.

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 (5), fixing axle (6), prisoner's energy circuit (7);Institute Interface is equipped with screw thread before and after stating fluid line (1), can closely be connect with extraneous pipeline;Fluid line (1) outer surface is also Equipped with coil made of metal (4), coil (4) both ends are connect with prisoner's energy circuit (7);The inside center of the fluid line (1) Position 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 number Magnet piece two (5-1), impeller (5) can be freely rotated under the promotion of fluid around fixing axle (6);The shell (2) and fluid Pipeline (1) is to be fixedly connected, and upper and lower two bistable state piezoelectric elements (3) are equipped between fluid line (1) and shell (2), flexible Piezoelectric element is MFC, and the two poles of the earth MFC are connect with prisoner's energy circuit, and bistable state piezoelectric element (3) is fixedly mounted on the boss of shell (2) On;When impeller (5) rotation, magnet piece two (5-1) of the setting in impeller (5) periphery, which rotates therewith, causes surrounding magnetic field to become Change, and then make to be arranged in the coil (4) of pipeline external and generate induced current, is produced electricl energy by electromagnetic induction principle, simultaneously Bistable state piezoelectric element (3) constantly switches under magneticaction between first and second stable state, and the MFC on its substrate is forced to send out Raw deformation, is produced electricl energy using piezoelectric effect.
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 (6-1) by adjusting in fixing axle (6), and fixing axle (6) is made to compress fluid line Inner wall both ends, to which impeller (5) is fixed on fluid line (1) inner hub location, without 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:Circumferentially outside has been evenly arranged even number magnet piece two (5-1) to the impeller (5), adjacent magnets block two (5-1) 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) has setting, bistable state piezoelectricity group in upper and lower two positions of fluid line (1) All magnet piece one (3-1) magnetic pole setting directions on part (3) are all identical, i.e., the same magnetic pole of all magnet pieces one (3-1) Both facing to impeller (5) axis direction.
CN201820341198.3U 2018-03-13 2018-03-13 A kind of bistable state piezoelectricity-electromagnetic power generation apparatus using fluids within pipes kinetic energy Expired - Fee Related CN208046485U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109915740A (en) * 2019-05-06 2019-06-21 重庆大学 A kind of detection device and detection method of pipe leakage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109915740A (en) * 2019-05-06 2019-06-21 重庆大学 A kind of detection device and detection method of pipe leakage
CN109915740B (en) * 2019-05-06 2020-04-10 重庆大学 Pipeline leakage detection device and detection method

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