CN107508492A - A kind of flag puts Exciting-simulator system wind energy collector - Google Patents

A kind of flag puts Exciting-simulator system wind energy collector Download PDF

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Publication number
CN107508492A
CN107508492A CN201710728195.5A CN201710728195A CN107508492A CN 107508492 A CN107508492 A CN 107508492A CN 201710728195 A CN201710728195 A CN 201710728195A CN 107508492 A CN107508492 A CN 107508492A
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CN
China
Prior art keywords
leaf spring
disk
piezoelectric vibrator
semiaxis
substrate
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Application number
CN201710728195.5A
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Chinese (zh)
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CN107508492B (en
Inventor
王淑云
钱前程
程光明
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浙江师范大学
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Priority to CN201710728195.5A priority Critical patent/CN107508492B/en
Publication of CN107508492A publication Critical patent/CN107508492A/en
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Publication of CN107508492B publication Critical patent/CN107508492B/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 piezo-electric effect, electrostriction or magnetostriction
    • H02N2/18Electric machines in general using piezo-electric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators

Abstract

The present invention relates to a kind of flag to put Exciting-simulator system wind energy collector, belongs to new energy field.Semiaxis is provided with above the disk body of balance, circuit board is housed below disk body provided with land is provided with boss, outer rim equipped with sensor, disk body centrally under;Sail frame sleeve is enclosed on semiaxis and can rotated around semiaxis, and canvas is housed on sleeve;The center of two magnet of the balanced configuration below chassis is located on same circumference with center sensor;Shell body is on base, and for the connecting plate of driver on base boss, connecting plate is provided with swing rod, and swing rod is provided with excitation disk, and excitation disk is provided with stud, and stud is with balance boss through being threadedly coupled;Generator unit is housed in uniform way in the side wall of base boss, it is the arcuate structure formed by substrate and piezoelectric piece bonding that leaf spring free end therein, which contacts with excitation disk outer rim but without interaction force, piezoelectric vibrator, substrate bending radius is less than piezoelectric patches bending radius, substrate is installed close to leaf spring, and substrate free end is pressed against in leaf spring.

Description

A kind of flag puts Exciting-simulator system wind energy collector

Technical field

The invention belongs to field of new energy technologies, and in particular to a kind of flag puts Exciting-simulator system wind energy collector, for environment apoplexy To the confession pyroelectric monitor of change.

Background technology

Wind direction and wind velocity e measurement technology is all widely used demand in the industry such as meteorology, civil aviaton, highway and bridge and mining. It is presently used for novel sensor, data acquisition and procession technology of wind direction and wind velocity measurement etc. and all achieves significant progress, wherein Portable digital formula air speed measuring apparatus has obtained extensive practical application in the industrial production.However, field natural environment apoplexy There are some key issues for being badly in need of solving in terms of measuring wind speed, such as data sampling and processing and the energy of lasting remote transmission Supply problem, the low wind speed starting problem of measuring system, etc..

The content of the invention

The present invention proposes a kind of flag pendulum Exciting-simulator system wind energy collector, and the embodiment that the present invention uses is:The disk body of balance Top is provided with semiaxis, is provided with sensor through screw above disk body, and boss with threaded hole, disk are provided with the center below disk body Land is provided with outer rim below body, disk body lower section is provided with circuit board through screw, and circuit board is provided with power conversion circuits, fortune Calculate process circuit and information transmitting system;Sensor is distributed on using half axis center as on the circumference in the center of circle;Sail frame is by being mutually perpendicular to Sleeve and chassis form, sleeve is enclosed on semiaxis and can be rotated around semiaxis, and canvas is provided with sleeve;The chassis warp beam of sail frame Pressure-bearing is connected on disk body;Two magnet are inlaid with below the chassis of sail frame, magnetic blow out centre is located at same circumference with center sensor On, magnet is symmetrically mounted on semiaxis both sides, and sensor determines side on sail frame residing for canvas by detecting the magnetic field intensity of magnet Position, so that it is determined that wind direction.

Shell body is arranged on base through screw, and the connecting plate of driver is arranged on base boss through screw, driver Connecting plate be provided with swing rod, swing rod upper end is provided with excitation disk, is provided with stud above excitation disk, and the boss of stud and balance is through spiral shell Line is connected, and the upper end of shell body is placed in the land of balance;Inertial mass is installed through screw on excitation disk;The side of base boss Generator unit is installed in uniform way through pressing plate and screw on wall, generator unit is by leaf spring and its piezoelectric vibrator of both sides balanced configuration Form, one end of leaf spring and piezoelectric vibrator is crimped in the side wall of base boss through pressing plate, the fixing end of leaf spring and piezoelectric vibrator Between be crimped with pad, the free end of leaf spring is with encouraging the outer rim of disk to contact but without interaction force;Piezoelectric vibrator is by uniform thickness The arcuate structure that the substrate and piezoelectric piece bonding of degree form, the bending radius of substrate are less than the bending radius of piezoelectric patches, and substrate leans on Nearly leaf spring installation, substrate free end are pressed against in leaf spring, and deflection of the leaf spring without piezoelectric vibrator when deforming is less than its allowable value Half, when the land of balance is in contact with shell body, the maximum deformation quantity of piezoelectric vibrator is less than for the swing rod deformation of driver Its allowable value;Leaf spring both sides are provided with the gap for being used for adjusting bending and torsional rigidity, and gap is located at leaf spring and contacted with piezoelectric vibrator The lower section of point.

When being blowed air in environment, the coupling of canvas and wind will force sail frame, balance and driver to swing, then through swashing Encouraging the interaction of disk and leaf spring makes the state of piezoelectric vibrator change:During leaf spring flexural deformation, leaf spring side piezoelectric vibrator Deflection increase, the deflection of opposite side piezoelectric vibrator reduce, when the swing rod of driver deforms land excessive and that make balance When being in contact with shell body, it is gradual that the practical distortion amount of the gradual increased piezoelectric vibrator of deflection is less than its allowable value, deflection The piezoelectric vibrator of reduction occurs without reversal deformation;In the present invention, the allowable value of piezoelectric vibrator deflection isR is the radius on piezoelectric patches convex surface, and l is the length of piezoelectric vibrator deformable segment;Piezoelectric vibrator becomes Increase and reduce the stress alternation of piezoelectric patches during shape amount alternately increases with reduction, so as to convert mechanical energy into electricity Can, this is piezo-electric generating process;The electric energy generated is through on wire transmission to circuit board, being used for wind direction signals after converted processing Processing calculate and transmitting.

When wind direction in environment changes, canvas will drive the semiaxis of sail frame and magnet around balance to rotate, so as to change The relative position of each sensor and magnet, magnetic field intensity detected on each sensor is set to change, it is near with magnet distance The magnetic field intensity that detects of sensor it is high, the magnetic field intensity that detects apart from remote sensor is weak or can't detect magnetic field, therefore The present invention detects the power of magnetic field intensity according to each sensor and whether there is determination wind direction, and the wind vector information obtained is through electricity Information transmitting system on the plate of road is launched.

In the present invention, to make piezoelectric vibrator that there is maximum generating capacity and avoiding piezoelectric patches because of tension in manufacturing process Excessive and damage, the radius minimum value on nature lower piezoelectric piece convex surface before piezoelectric vibrator assembling isWherein H be piezoelectric vibrator thickness, E1、E2Respectively The modulus of elasticity of substrate and piezoelectric patches,g31、T*The respectively dielectric constant of piezoelectric, voltage constant and allowable tensile stress.

Advantage and characteristic:It is simple in construction, threshold wind velocity is low, the confession electrical measurement suitable for wind vector in natural environment;Pressure Electric tachometer indicator itself is high without additional mass, fundamental frequency, it can be ensured that is operated under first-order modal, generating effect is good;System fundamental frequency easily passes through Inertial mass quality, leaf spring rigidity are adjusted;Piezoelectric vibrator is subjected only to unidirectional excitation, produces bend in one direction deformation and become in work Shape amount is controllable, therefore reliability is high.

Brief description of the drawings

Fig. 1 is the structural representation of wind energy collector in a preferred embodiment of the present invention;

Fig. 2 is the structural representation of a preferred embodiment of the present invention topsail frame;

Fig. 3 is Fig. 2 top view;

Fig. 4 is Fig. 1 A-A sectional views;

Fig. 5 is the structural representation of driver in a preferred embodiment of the present invention;

Fig. 6 is the structural representation of leaf spring in a preferred embodiment of the present invention.

Embodiment

Semiaxis a2 is provided with above balance a disk body a1, sensor b is installed through screw, is set at the center below disk body a1 There is boss a3 with threaded hole, land a4 is provided with outer rim, circuit board y is installed through screw below disk body a1, set on circuit board y There are power conversion circuits, arithmetic processing circuit and information transmitting system;Sensor b is distributed on the circle using semiaxis a2 centers as the center of circle Zhou Shang;Sail frame c is made up of orthogonal sleeve c1 and chassis c2, and sleeve c1 is enclosed on semiaxis a2 and can rotated around semiaxis a2, Canvas d is installed on sleeve c1;Sail frame c chassis c2 is crimped on disk body a1 through bearing e;Inlayed below sail frame c chassis c2 There are two magnet f, magnet f center and sensor b are centrally located on same circumference, and magnet f is symmetrically mounted on semiaxis a2's Both sides, sensor b determines orientation on sail frame c residing for canvas d by detecting magnet f magnetic field intensity, so that it is determined that wind direction.

Shell body h is arranged on base g through screw, and driver i connecting plate i1 is arranged on base boss g1 through screw, Driver i connecting plate i1 is provided with swing rod i2, and swing rod i2 upper ends are provided with excitation disk i3, stud i4 is provided with above excitation disk i3, Stud i4 is connected with balance a boss a3 through screw thread, and shell body h upper end is placed in balance a land a4;Encourage on disk i3 Inertial mass z is installed through screw;Generator unit E is installed in uniform way through pressing plate j and screw in base boss g1 side wall, generated electricity Unit E is made up of leaf spring m and its piezoelectric vibrator k of both sides balanced configuration, and leaf spring m and piezoelectric vibrator k one end crimp through pressing plate j In base boss g1 side wall, be crimped with pad x between leaf spring m and piezoelectric vibrator k fixing end, leaf spring m free end with Encourage disk i3 outer rim contact but without interaction force;Piezoelectric vibrator k be by equal thickness substrate k1 and piezoelectric patches k2 bonding and Into arcuate structure, substrate k1 bending radius is less than piezoelectric patches k2 bending radius, and substrate k1 installs close to leaf spring m, substrate K1 free ends are pressed against on leaf spring m, and deflections of the leaf spring m without piezoelectric vibrator k when deforming is less than the half of its allowable value, excitation When device i swing rod i2 deformations make balance a land a4 be in contact with shell body h, piezoelectric vibrator k maximum deformation quantity is permitted less than it With value;Leaf spring m both sides are provided with the gap m1 for being used for adjusting bending and torsional rigidity, and gap m1 is located at leaf spring m and piezoelectric vibrator k The lower section of contact point.

When being blowed air in environment, the coupling of canvas d and wind will force sail frame c, balance a and driver i to swing, then Through encouraging disk i3 and leaf spring m interaction piezoelectric vibrator k state is changed:During leaf spring m flexural deformations, leaf spring m mono- Side pressure electric tachometer indicator k deflection increase, opposite side piezoelectric vibrator k deflection reduce, when driver i swing rod i2 deformations are excessive And when balance a land a4 is in contact with shell body h, the gradual increased piezoelectric vibrator k of deflection practical distortion amount is less than The piezoelectric vibrator k that its allowable value, deflection are gradually reduced occurs without reversal deformation;In the present invention, piezoelectric vibrator k deflections are permitted It is with valueR is the radius on piezoelectric patches k2 convex surfaces, and l is the length of piezoelectric vibrator k deformable segments; Piezoelectric vibrator k deflections alternately increase with reduce during piezoelectric patches k2 stress alternation increase and reduce so that by machine Tool can be converted into electric energy, and this is piezo-electric generating process;The electric energy generated is through on wire transmission to circuit board y, converted processing The processing for wind direction signals is calculated and launched afterwards.

When wind direction in environment changes, canvas d will drive semiaxis a2s of the sail frame c and magnet f around balance a to rotate, from And change each sensor b and magnet f relative position, magnetic field intensity detected on each sensor b is changed, with magnetic Iron f is weak or without magnetic field apart from the magnetic field intensity that high, the remote sensor b of the magnetic field intensity that near sensor b is detected is detected, therefore The present invention detects the power of magnetic field intensity according to each sensor b and whether there is determination wind direction, and the wind vector information obtained passes through Information transmitting system on circuit board y is launched.

In the present invention, to make piezoelectric vibrator k that there is maximum generating capacity and avoiding piezoelectric patches k2 because being drawn in manufacturing process Stress is excessive and damages, and the radius minimum value on nature lower piezoelectric piece k2 convex surfaces before piezoelectric vibrator k assemblings isWherein H be piezoelectric vibrator k thickness, E1、E2Respectively Substrate k1 and piezoelectric patches k2 modulus of elasticity,g31、T*The respectively dielectric constant of piezoelectric, voltage constant and drawing allowable Stress.

Claims (1)

1. a kind of flag puts Exciting-simulator system wind energy collector, it is characterised in that:Semiaxis is provided with above the disk body of balance, equipped with sensor, Provided with land is provided with boss, outer rim at center below disk body, circuit board is housed below disk body;Sensor is distributed on semiaxis Center is on the circumference in the center of circle;Sail frame is made up of orthogonal sleeve and chassis, and sleeve is enclosed on semiaxis and can turned around semiaxis It is dynamic, canvas is housed on sleeve;The chassis warp beam pressure-bearing of sail frame is connected on disk body, is inlaid with two magnet below chassis, in magnet The heart is located on same circumference with center sensor, and magnet is symmetrically mounted in semiaxis both sides;Shell body is on base, the company of driver For fishplate bar on base boss, connecting plate is provided with swing rod, and swing rod upper end is provided with excitation disk, stud, spiral shell are provided with above excitation disk Post is connected with the boss of balance through screw thread, and the upper end of shell body is placed in the land of balance;It is uniform in the side wall of base boss Ground is equipped with generator unit, and generator unit is made up of the piezoelectric vibrator of leaf spring and its both sides balanced configuration, leaf spring and piezoelectric vibrator Pad is crimped between fixing end, leaf spring free end contacts but without interaction force with excitation disk outer rim;Piezoelectric vibrator be by etc. The arcuate structure that the substrate and piezoelectric piece bonding of thickness form, substrate bending radius are less than piezoelectric patches bending radius, and substrate is close Leaf spring is installed, and substrate free end is pressed against in leaf spring, and piezoelectric vibrator deflection is less than the half of its allowable value when leaf spring is without deformation, When swing rod deformation makes the land of balance be in contact with shell body, piezoelectric vibrator deflection is less than its allowable value;Leaf spring both sides are provided with For adjusting the gap of bending and torsional rigidity, gap is located at the lower section of leaf spring and piezoelectric vibrator contact point.
CN201710728195.5A 2017-08-17 2017-08-17 A kind of flag pendulum Exciting-simulator system wind energy collector CN107508492B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109889094A (en) * 2019-03-12 2019-06-14 哈尔滨工业大学 A kind of double oscillator piezoelectric harvesters of tunable aerofoil profile flutter Exciting-simulator system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100052324A1 (en) * 2005-10-18 2010-03-04 Board Of Regents, The University Of Texas System Piezoelectric windmill apparatus
CN203627085U (en) * 2013-10-31 2014-06-04 吉林大学 Wind power generation device based on direct piezoelectric effect
CN105006993A (en) * 2015-07-24 2015-10-28 哈尔滨工业大学 Vertical shaft rotary excitation type wind energy capture device
CN105978403A (en) * 2016-06-15 2016-09-28 浙江师范大学 Liquid-coupling excitation energy harvester for power supply for wind generator blade monitoring system
CN106050570A (en) * 2016-06-04 2016-10-26 上海大学 Wind energy collector based on flexible polymer piezoelectric material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100052324A1 (en) * 2005-10-18 2010-03-04 Board Of Regents, The University Of Texas System Piezoelectric windmill apparatus
CN203627085U (en) * 2013-10-31 2014-06-04 吉林大学 Wind power generation device based on direct piezoelectric effect
CN105006993A (en) * 2015-07-24 2015-10-28 哈尔滨工业大学 Vertical shaft rotary excitation type wind energy capture device
CN106050570A (en) * 2016-06-04 2016-10-26 上海大学 Wind energy collector based on flexible polymer piezoelectric material
CN105978403A (en) * 2016-06-15 2016-09-28 浙江师范大学 Liquid-coupling excitation energy harvester for power supply for wind generator blade monitoring system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109889094A (en) * 2019-03-12 2019-06-14 哈尔滨工业大学 A kind of double oscillator piezoelectric harvesters of tunable aerofoil profile flutter Exciting-simulator system

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Inventor after: Wang Shuyun

Inventor after: Zhang Ziqing

Inventor after: Liang Cheng

Inventor after: Qian Qiancheng

Inventor after: Cheng Guangming

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Inventor before: Qian Qiancheng

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