CN206164399U - Power fluid coupling's non -linear vortex induced vibration energy gatherer - Google Patents

Power fluid coupling's non -linear vortex induced vibration energy gatherer Download PDF

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Publication number
CN206164399U
CN206164399U CN201621189449.8U CN201621189449U CN206164399U CN 206164399 U CN206164399 U CN 206164399U CN 201621189449 U CN201621189449 U CN 201621189449U CN 206164399 U CN206164399 U CN 206164399U
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CN
China
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magnet
diode
repulsion
captivation
permanent magnet
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CN201621189449.8U
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Chinese (zh)
Inventor
代胡亮
张岚斌
王琳
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华中科技大学
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Priority to CN201621189449.8U priority Critical patent/CN206164399U/en
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Abstract

The utility model discloses a power fluid coupling's non -linear vortex induced vibration energy gatherer, including last roof, a lower plate, the support column, the cantilever beam, bimorph, a cylinder body, upper and lower magnet power mechanism, rectifier circuit and super capacitor, the both ends of support column are fixed in respectively on roof and the lower plate, the one end of cantilever beam is installed on the support column, the other end is fixed at the cylinder, the cylinder is unsettled, the bimorph symmetry is fixed in on the cantilever beam, it includes the permanent magnet to go up magnetic mechanism, last repulsion magnet and two last appeal magnet, magnetic mechanism includes permanent magnet down, lower repulsion magnet and twice appeal magnet, last permanent magnet is fixed in respectively on the face of the upper and lower both ends of cylinder with lower permanent magnet, last repulsion magnet and two last appeal magnet all are fixed in on the roof, repulsion magnet and twice appeal magnet all are fixed in on the lower plate down, super capacitor passes through rectifier circuit and is connected with bimorph. This collector simple structure, and improve the energy and gather efficiency.

Description

A kind of Nonlinear Vortex-induced energy collecting device of power-electricity-flow coupling
Technical field
This utility model is related to new forms of energy and microelectronic component energy supply technical field, and in particular to a kind of power-electricity-flow coupling The Nonlinear Vortex-induced energy collecting device of cooperation.
Background technology
With developing rapidly for micro-fabrication technology and modern integrated circuits, substantial amounts of electronic product, such as health monitor, nothing Line sensor heart rate pacemaker etc., shows the features such as high accuracy, miniaturization and low-power consumption.For example, for monitoring structural health conditions The sensor mean power required in normal work less than 48 μ W.At present, these electronic products generally adopt wired transmission of electricity Or supplied with realizing energy by battery.However, wired transmission of electricity can cause spread line puzzlement, especially for remote, environment compared with Severe remote districts;And battery is powered and has the shortcomings that short life, the feature of environmental protection be poor, maintenance cost is high, this undoubtedly gives engineering circles Bring huge challenge.In consideration of it, some new " energy acquisition " technologies are arisen at the historic moment.So far, a kind of possible approach be by The energy discarded in natural environment is converted into available electric energy, to reducing or replacing the length to battery or wired power transmission mode Phase relies on.
At present, mainly there are three kinds of modes that the vibrational energy in environment is converted to into electric energy:Electromagnetism, electrostatic and piezoelectric energy-conversion machine System.Compared with other electricity generating principles, the sharpest edges of piezoelectric energy-conversion are simple structure, it is easy to be fabricated to various required sizes and Shape, is easy to integrated with MEMS or is placed in internal system, and the voltage ratio that piezoelectric energy-capturing is produced is larger.
Flow vibration phenomenon includes vortex-induced vibration, galloping, tremor etc..Wherein, galloping and tremor is with flow velocity or wind speed Increase gradually increase.And vortex-induced vibration be a kind of self-excitation and from limit oscillation phenomenon, when flow velocity within a certain range when, structure Resonance response can occur and produce larger output voltage.So can avoid because larger flow velocity or wind speed cause structure that big change occurs Shape, so as to cause the destruction of beam or piezoelectric structure.Therefore, vortex-induced vibration energy acquisition has broad application prospects.
The content of the invention
Based on above-mentioned prior art, this utility model provides a kind of non-linear whirlpool exciting of power-electricity-flow coupling Energy harvester, the harvester simple structure, it is in the work for introducing nonlinear magnetism ferreous (monostable or bi-stable character) With under, and then vortex-induced vibration intensity is improved, increase frequency locking region (resonance flow rates), to strengthening the environment of energy collecting device Adaptability, improves energy acquisition efficiency.
Realize that the technical scheme that this utility model above-mentioned purpose is sampled is:
A kind of Nonlinear Vortex-induced energy collecting device of power-electricity-flow coupling, including upper plate, lower shoe, Dagger, cantilever beam, bimorph, cylinder, upper magnetic force mechanism and lower magnetic force mechanism, upper plate is supported parallel to lower shoe The two ends of post are individually fixed on upper plate and lower shoe, and support column leads to perpendicular to upper plate and lower shoe, one end of cantilever beam Cross clamp system to be installed on the middle part of support column, the other end is fixed on the middle part of cylindrical sidewall, cylinder is hanging and position Between upper plate and lower shoe, cylinder is symmetrically fixed parallel to support column, cantilever beam perpendicular to support column, bimorph On the side wall of cantilever beam, upper magnetic force mechanism includes upper permanent magnet, upper repulsion Magnet and two blocks of upper captivation Magnet, lower magnetic force machine Structure includes lower permanent magnet, lower repulsion Magnet and two blocks of lower captivation Magnet, and upper permanent magnet and lower permanent magnet are individually fixed in cylinder The central authorities in body upper and lower ends face, upper repulsion Magnet and two blocks of upper captivation Magnet are both secured on upper plate, and two pieces of upper attractions Power Magnet is symmetrically distributed in the both sides of repulsion Magnet, and lower repulsion Magnet and two blocks of lower captivation Magnet are both secured to lower shoe On, and two blocks of lower captivation Magnet is symmetrically distributed in the both sides of lower repulsion Magnet, upper repulsion Magnet is located at just going up for upper permanent magnet Side, lower repulsion Magnet is located at the underface of lower permanent magnet.
Described clamp system includes two clamping plates and multiple bolts, and two clamping plates are located at the end of the same side and are fixed on support On post, one end of cantilever beam is located between two clamping plates and is adjacent to two clamping plates, and cantilever beam is bolted to two clamping plates by multiple On.
Also include rectification circuit and super capacitor, super capacitor is connected by rectification circuit with bimorph, described Rectification circuit is by diode D1, diode D2, diode D3, diode D4, resistance R1, diode D5, diode D6, diode D7, diode D8 and resistance R2, in the positive half cycle of vibration, diode D2 and diode D4 is turned on, diode D5 and diode D7 Conducting, connects resistance R1 and super capacitor C1 after parallel connection;In the negative half period of vibration, diode D1 and diode D3 is turned on, two poles Pipe D6 and diode D8 is turned on, and resistance R2 and super capacitor C1 is connected after parallel connection.
The spacing of the spacing and lower repulsion Magnet and lower permanent magnet of upper repulsion Magnet and upper permanent magnet is 0.5-2cm, One of upper captivation Magnet is 2-5cm, one of lower captivation Magnet and lower repulsion magnetic with the spacing of upper repulsion Magnet The spacing of ferrum is 2-5cm.
Described upper repulsion Magnet, upper permanent magnet, upper captivation Magnet, lower repulsion Magnet, lower permanent magnet and lower captivation Magnet is in button shape.
The material of the cylinder is extruded sheet, and the material of bimorph is piezoelectric fibre composite material.
Compared with prior art, the beneficial effects of the utility model and advantage are:
1st, the harvester capturees under vibrating conditions energy using piezoelectric effect, under the coupling of wind load and magnetic force, effectively Increased piezoelectricity independent wind load effect under less lock-in range, be more beneficial under less wind speed or larger wind speed capture Wind energy is obtained, the adaptive capacity to environment of harvester is increased.
2nd, the harvester is a kind of piezoelectric type energy accumulator of wind-magnetic coupling interaction energy supply, due to magnetic repulsion or magnetic attraction Introducing vortex-induced vibration of cylinder is changed so that the amplitude and frequency of vibration of cantilever beam all there occurs change, enter And the voltage and power of energy collecting device capture are increased, the prisoner for enhancing energy collecting device can effect.
Description of the drawings
Fig. 1 is that the structure of the Nonlinear Vortex-induced energy collecting device of power of the present utility model-electricity-flow coupling is shown It is intended to.
Fig. 2 is the partial schematic diagram of I in Fig. 1.
Fig. 3 is the Nonlinear Vortex-induced energy collecting device workflow of power of the present utility model-electricity-flow coupling Schematic diagram.
Fig. 4 is the circuit diagram of rectification circuit connection.
Fig. 5 is the rule figure that the power that energy collecting device of the present utility model is produced changes with wind speed and changes.
Fig. 6 is to test the connection circuit diagram that energy collecting device power harvesting is measured in.
Wherein, on 1- upper plates, 2- lower shoes, 3- support columns, 4- cantilever beams, 5- bimorphs, 6- cylinders, 7- forever Captivation Magnet under repulsion Magnet, 12- under permanent magnet, 11- under the upper repulsion Magnet of Magnet, 8-, the upper captivation Magnet of 9-, 10-, 13- clamping plates, 14- bolts.
Specific embodiment
This utility model is described in detail below in conjunction with the accompanying drawings.
The structure of the Nonlinear Vortex-induced energy collecting device of power-electricity-flow coupling that this utility model is provided is shown It is intended to as shown in figure 1, the harvester includes upper plate 1, lower shoe 2, support column 3, cantilever beam 4, bimorph 5, cylinder 6th, upper magnetic force mechanism, lower magnetic force mechanism, rectification circuit and super capacitor.The material of cylinder is extruded sheet.Bimorph Material is piezoelectric fibre composite material, compares Common piezoelectricity ceramics, has an advantage in that generating efficiency is higher.
Parallel to lower shoe 2, the two ends of support column 3 are individually fixed in same on upper plate 1 and lower shoe 2 upper plate 1 On side, support column 3 is perpendicular to upper plate 1 and lower shoe 2.One end of cantilever beam 4 is installed in support column 3 by clamp system In portion, cantilever beam is elastic, and very thin, is easier vibration.As shown in Fig. 2 clamp system includes the He of two clamping plates 13 Two bolts 14, the end that two clamping plates 13 are located at the same side is welded on support column 3, and one end of cantilever beam 4 is located at two clamping plates 13 Between and be adjacent to two clamping plates, and cantilever beam 4 is fixed on two clamping plates by two bolts 14.The other end insertion circle of cantilever beam 4 Fix in the middle part of the side wall of cylinder 6 and by glue.Cylinder 6 is hanging and between upper plate 1 and lower shoe 2, cylinder 6 Parallel to support column 3, cantilever beam 4 is perpendicular to support column 3.Bimorph 5 is symmetrically fixed on cantilever beam 4 by way of pasting Side wall on.
Upper magnetic force mechanism includes upper permanent magnet 7, upper repulsion Magnet 8 and two blocks of upper captivation Magnet 9, and lower magnetic force mechanism includes Lower permanent magnet 10, lower repulsion Magnet 11 and two blocks of lower captivation Magnet 12, upper repulsion Magnet 7, upper permanent magnet 8, upper captivation magnetic Ferrum 9, lower repulsion Magnet 10, lower permanent magnet 11 and lower captivation Magnet 12 are in button shape.Upper permanent magnet 7 and lower permanent magnet 10 are logical Cross the central authorities that the mode pasted is individually fixed in the upper and lower ends face of cylinder 6.Upper repulsion Magnet 8 and two blocks of upper captivation Magnet 9 It is fixed on upper plate 1 by way of pasting, and two blocks of upper captivation Magnet 9 are symmetrically distributed in the two of repulsion Magnet 8 Side, one of upper captivation Magnet is 3cm with the spacing of upper repulsion Magnet.Lower repulsion Magnet 10 and two blocks of lower captivation Magnet 11 are fixed on lower shoe 2 by way of pasting, and two blocks of lower captivation Magnet 12 are symmetrically distributed in lower repulsion Magnet 11 Both sides, the spacing of one of lower captivation Magnet and lower repulsion Magnet is 3cm.Upper repulsion Magnet 8 is located at upper permanent magnet 7 The spacing of surface, upper repulsion Magnet and upper permanent magnet is 1cm.Lower repulsion Magnet 11 is located at the underface of lower permanent magnet 10, under The spacing of repulsion Magnet and lower permanent magnet is 1cm.Upper repulsion Magnet 8, upper permanent magnet 7, lower repulsion Magnet 11 and lower permanent magnet 10, The axis of cylinder 6 is on the same line.
Super capacitor is connected by rectification circuit with bimorph, and AC conversion is unidirectional current by rectification circuit.Such as Shown in Fig. 4, rectification circuit is by diode D1, diode D2, diode D3, diode D4, resistance R1, diode D5, diode D6, diode D7, diode D8 and resistance R2, in the positive half cycle of vibration, diode D2 and diode D4 are turned on, diode D5 and Diode D7 is turned on, and resistance R1 and super capacitor C1 is connected after parallel connection;In the negative half period of vibration, diode D1 and diode D3 leads Logical, diode D6 and diode D8 is turned on, and resistance R2 and super capacitor C1 is connected after parallel connection.
The operation principle of the harvester is as follows:
As shown in figure 3, when laterally flow (wind) through cylinder and flow velocity in a certain scope when, cylinder produces vortex shedding Generation vortex-induced vibration, it is of reciprocating vibration so as to drive cantilever beam and bimorph to occur, produce strain;It is double in vibration processes Stable state Magnet power can be realized (without the need for captivation Magnet) by permanent magnet and repulsion Magnet;Monostable Magnet power can by permanent magnet and Captivation Magnet is realized (without the need for repulsion Magnet);The ferreous introducing of this non-linear monostable or bistable magnetic, is expected to increase circle The vortex-induced vibration amplitude and resonance flow rates of cylinder, so as to provide energy acquisition performance and efficiency;Bimorph can be with outstanding Arm beam vibration is strained, and produces alternating voltage, and by connecting with external current-regulating circuit available DC voltage can be exported, Again electric energy is stored by super capacitor, and then for sensor or micro-electromechanical device energy supply.
The experiment one, energy of the Nonlinear Vortex-induced energy collecting device of power of the present utility model-electricity-flow coupling Capture experiment
Experimental technique:
By the energy collecting device of above-described embodiment among wind-tunnel, resistance R is 400 kilo-ohms and (tests for convenience, only external electricity Resistance R), voltmeter is installed in circuit, voltage is measured, as shown in fig. 6, adjusting wind speed size, the voltage obtained under different wind speed is equal Root, and then obtain the average power content under different wind speed.
Various Magnet in the energy collecting device of above-described embodiment are removed, as the matched group device without magnetic force reality is carried out Test.
Experimental result:
Experimental result is as shown in figure 5, from fig. 5, it can be seen that compare under relatively no magneticaction, energy of the present utility model Harvester (magnetic force and wind-force are coupled) can improve energy acquisition efficiency and play the role of to raising lock-in regime obvious.
Above content is the further description done to this utility model with reference to specific preferred implementation, it is impossible to Identification is of the present utility model to be embodied as being confined to these explanations.For the ordinary skill of this utility model art For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, such as change matter Gauge block Magnet shape, changes magnet pitch, should all be considered as belonging to protection domain of the present utility model.

Claims (6)

1. the Nonlinear Vortex-induced energy collecting device of a kind of power-electricity-flow coupling, it is characterised in that:Including upper plate, Lower shoe, support column, cantilever beam, bimorph, cylinder, upper magnetic force mechanism and lower magnetic force mechanism, upper plate is parallel under Base plate, the two ends of support column are individually fixed on upper plate and lower shoe, and support column is perpendicular to upper plate and lower shoe, cantilever beam One end be installed on the middle part of support column by clamp system, the other end is fixed on the middle part of cylindrical sidewall, cylinder Vacantly and between upper plate and lower shoe, parallel to support column, cantilever beam is perpendicular to support column, bimorph for cylinder It is symmetrically fixed on the side wall of cantilever beam, upper magnetic force mechanism includes upper permanent magnet, upper repulsion Magnet and two blocks of upper captivation Magnet, Lower magnetic force mechanism includes lower permanent magnet, lower repulsion Magnet and two blocks of lower captivation Magnet, and upper permanent magnet and lower permanent magnet are consolidated respectively Due to the central authorities in cylinder upper and lower ends face, upper repulsion Magnet and two blocks of upper captivation Magnet are both secured on upper plate, and two Captivation Magnet is symmetrically distributed in the both sides of repulsion Magnet on block, and lower repulsion Magnet and two blocks of lower captivation Magnet are both secured to On lower shoe, and two blocks of lower captivation Magnet is symmetrically distributed in the both sides of lower repulsion Magnet, and upper repulsion Magnet is located at upper permanent magnet Surface, lower repulsion Magnet be located at lower permanent magnet underface.
2. the Nonlinear Vortex-induced energy collecting device of power according to claim 1-electricity-flow coupling, its feature It is:Described clamp system includes two clamping plates and multiple bolts, and two clamping plates are located at the end of the same side and are fixed on support column On, one end of cantilever beam is located between two clamping plates and is adjacent to two clamping plates, and cantilever beam is fixed on two clamping plates by multiple bolts.
3. according to the Nonlinear Vortex-induced energy collecting device of the arbitrary described power-electricity-flow coupling of claim 1-2, It is characterized in that:Also include rectification circuit and super capacitor, super capacitor is connected by rectification circuit with bimorph, described Rectification circuit by diode D1, diode D2, diode D3, diode D4, resistance R1, diode D5, diode D6, two poles Pipe D7, diode D8 and resistance R2, in the positive half cycle of vibration, diode D2 and diode D4 conductings, diode D5 and diode D7 is turned on, and resistance R1 and super capacitor C1 is connected after parallel connection;In the negative half period of vibration, diode D1 and diode D3 is turned on, and two Pole pipe D6 and diode D8 are turned on, and resistance R2 and super capacitor C1 is connected after parallel connection.
4. the Nonlinear Vortex-induced energy collecting device of power according to claim 3-electricity-flow coupling, its feature It is:The spacing of the spacing and lower repulsion Magnet and lower permanent magnet of upper repulsion Magnet and upper permanent magnet is 0.5-2cm, wherein One block of upper captivation Magnet and the spacing of upper repulsion Magnet are 2-5cm, one of lower captivation Magnet and lower repulsion Magnet Spacing is 2-5cm.
5. the Nonlinear Vortex-induced energy collecting device of power according to claim 4-electricity-flow coupling, its feature It is:Described upper repulsion Magnet, upper permanent magnet, upper captivation Magnet, lower repulsion Magnet, lower permanent magnet and lower captivation Magnet It is in button shape.
6. the Nonlinear Vortex-induced energy collecting device of power according to claim 5-electricity-flow coupling, its feature It is:The material of the cylinder is extruded sheet, and the material of bimorph is piezoelectric fibre composite material.
CN201621189449.8U 2016-11-04 2016-11-04 Power fluid coupling's non -linear vortex induced vibration energy gatherer CN206164399U (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106357159A (en) * 2016-11-04 2017-01-25 华中科技大学 Nonlinear vortex-induced vibration energy collector having force-current-fluid coupling function
CN107131096A (en) * 2017-05-27 2017-09-05 湘潭大学 Shearing is actively adjusted and energy gathering devices to flow down flow around bluff bodies with vortex-induced vibration
CN107317515A (en) * 2017-08-17 2017-11-03 浙江师范大学 A kind of current cause the energy accumulator that shakes
CN107332468A (en) * 2017-08-17 2017-11-07 浙江师范大学 A kind of indirect excitation formula self-generating device for river monitoring system
CN107359822A (en) * 2017-08-17 2017-11-17 浙江师范大学 A kind of displacement equations formula bluff body flow-disturbing energy accumulator
CN107395058A (en) * 2017-08-17 2017-11-24 浙江师范大学 A kind of step-by-step excitation formula piezoelectric fluid generator
CN107395057A (en) * 2017-08-17 2017-11-24 浙江师范大学 A kind of indirect excitation formula water flow generator step by step
CN107612419A (en) * 2017-09-11 2018-01-19 上海交通大学 The wide fast domain piezoelectric type wind energy collector of magnetic force boundary constraint enhancing
CN107634635A (en) * 2017-09-20 2018-01-26 清华大学 A kind of high-speed railway trackside wind-induced vibration energy recycle device
CN107688100A (en) * 2017-09-22 2018-02-13 上海交通大学 A kind of pipeline stream flow monitoring self-powered sensor based on vortex-induced vibration
CN110131118A (en) * 2019-06-26 2019-08-16 中北大学 A kind of multistable vortex-induced vibration energy collecting device
CN110429864A (en) * 2019-08-13 2019-11-08 哈尔滨工业大学 A kind of compound piezoelectric harvester of bending increasing prisoner's energy ability

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106357159A (en) * 2016-11-04 2017-01-25 华中科技大学 Nonlinear vortex-induced vibration energy collector having force-current-fluid coupling function
CN106357159B (en) * 2016-11-04 2018-07-17 华中科技大学 A kind of Nonlinear Vortex-induced energy collecting device of power-electricity-flow coupling
CN107131096A (en) * 2017-05-27 2017-09-05 湘潭大学 Shearing is actively adjusted and energy gathering devices to flow down flow around bluff bodies with vortex-induced vibration
CN107395057B (en) * 2017-08-17 2019-03-05 浙江师范大学 A kind of indirect excitation formula water flow generator step by step
CN107332468A (en) * 2017-08-17 2017-11-07 浙江师范大学 A kind of indirect excitation formula self-generating device for river monitoring system
CN107395058A (en) * 2017-08-17 2017-11-24 浙江师范大学 A kind of step-by-step excitation formula piezoelectric fluid generator
CN107395057A (en) * 2017-08-17 2017-11-24 浙江师范大学 A kind of indirect excitation formula water flow generator step by step
CN107317515A (en) * 2017-08-17 2017-11-03 浙江师范大学 A kind of current cause the energy accumulator that shakes
CN107317515B (en) * 2017-08-17 2019-03-26 浙江师范大学 A kind of water flow cause vibration energy accumulator
CN107359822A (en) * 2017-08-17 2017-11-17 浙江师范大学 A kind of displacement equations formula bluff body flow-disturbing energy accumulator
CN107395058B (en) * 2017-08-17 2019-02-15 浙江师范大学 A kind of step-by-step excitation formula piezoelectric fluid generator
CN107612419A (en) * 2017-09-11 2018-01-19 上海交通大学 The wide fast domain piezoelectric type wind energy collector of magnetic force boundary constraint enhancing
CN107634635A (en) * 2017-09-20 2018-01-26 清华大学 A kind of high-speed railway trackside wind-induced vibration energy recycle device
CN107688100A (en) * 2017-09-22 2018-02-13 上海交通大学 A kind of pipeline stream flow monitoring self-powered sensor based on vortex-induced vibration
CN110131118A (en) * 2019-06-26 2019-08-16 中北大学 A kind of multistable vortex-induced vibration energy collecting device
CN110429864A (en) * 2019-08-13 2019-11-08 哈尔滨工业大学 A kind of compound piezoelectric harvester of bending increasing prisoner's energy ability

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