CN107453650B - A kind of driving air-flow cause vibration energy accumulator - Google Patents
A kind of driving air-flow cause vibration energy accumulator Download PDFInfo
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- CN107453650B CN107453650B CN201710732638.8A CN201710732638A CN107453650B CN 107453650 B CN107453650 B CN 107453650B CN 201710732638 A CN201710732638 A CN 201710732638A CN 107453650 B CN107453650 B CN 107453650B
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- 238000009434 installation Methods 0.000 claims abstract description 17
- 239000000758 substrate Substances 0.000 claims abstract description 10
- 238000010276 construction Methods 0.000 claims abstract description 3
- 230000000694 effects Effects 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 2
- 238000007664 blowing Methods 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/185—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators using fluid streams
Abstract
The present invention relates to a kind of driving air-flows to cause vibration energy accumulator, belongs to new energy field.Wind deflector, right side are equipped with crossbeam there are two setting on the left of shell, two limited blocks are equipped on the inside of shell front and rear wall, crossbeam is equipped with piezoelectric vibrator in two sides up and down, the contact surface of piezoelectric vibrator and crossbeam is horizontal plane, piezoelectric vibrator free end two sides are respectively provided with plate windward and magnet, and magnet of the crossbeam up and down on the piezoelectric vibrator of two sides is close to each other and the relatively close installation of like pole；Piezoelectric vibrator is formed by equal thick substrates and piezoelectric piece bonding, and substrate is installed close to crossbeam, and plate is installed close to piezoelectric patches windward；It is after flat construction, installation before piezoelectric vibrator installation is warp architecture；Wind forces plate windward and piezoelectric vibrator reciprocally swinging when blowing to left side on the right side of shell, and deflection is less than its allowable value when piezoelectric vibrator free end acts against on limited block, and it is zero that the magnet on piezoelectric vibrator, which abuts against time-varying shape amount together,；Under rated wind speed, the quiet deflection of piezoelectric vibrator is the half of its allowable value.
Description
Technical field
The invention belongs to field of new energy technologies, and in particular to a kind of driving air-flow cause vibration energy accumulator, is railway and highway tunnel
Instrument and equipment power supply in road.
Background technique
Tunnel has become the important component of current highway and railway network.To ensure that automobile and train can normally pacify
Full colleague, the real-time monitoring for realizing tunnel environment and passing vehicle need to install all kinds of instrument and equipments and lighting installation in tunnel,
Therefore also there is corresponding power supply facilities in tunnel.Such as use traditional cable power supply, the laying of cable and the difficulty of follow-up maintenance
Spend larger, higher cost；It is such as powered, because of limited battery life, need to often be replaced, use is extremely inconvenient, especially using battery
In remote mountain areas.
Summary of the invention
The present invention proposes that a kind of driving air-flow causes vibration energy accumulator, and the embodiment that the present invention uses is: shell is by roof, bottom
Wall, antetheca and rear wall are constituted, and are set on the left of shell and are equipped with crossbeam there are two wind deflector, right side, and the both ends of wind deflector and crossbeam are all divided
It Gu Ding not be on the front and rear walls；All through screw installation, there are two limited block, gears at wind deflector for the inside of antetheca and rear wall
Aerofoil and limited block are all symmetrically arranged at the two sides up and down of crossbeam symmetrical centre；Two sides are all through pressing plate and screw above and below crossbeam
Piezoelectric vibrator is installed, the contact surface of piezoelectric vibrator and crossbeam is horizontal plane, and piezoelectric vibrator free end two sides are pacified respectively through screw
Equipped with plate windward and magnet, magnet of the crossbeam up and down on two sides piezoelectric vibrators is close to each other and the relatively close installation of like pole；
Piezoelectric vibrator is the cantilever beam structure as made of the substrate and piezoelectric piece bonding of equal thickness, and substrate is installed close to crossbeam, windward plate
It is installed close to piezoelectric patches；Piezoelectric vibrator free end is located at the right side of wind deflector, and the limited block above crossbeam is placed in pressure above crossbeam
The top of electric tachometer indicator, the limited block of below the crossbeam are placed in the lower section of the piezoelectric vibrator of below the crossbeam；It is flat before piezoelectric vibrator installation
Effect after straight structure, installation by magnet repulsive force generates bending deformation.
Will have when vehicle quickly passes through from tunnel humorously at wind blows to left side on the right side of shell；It blows air over and meets
Whirlpool can be generated when aerofoil behind plate windward, continuously generating and falling off for whirlpool increases wind pressure at left and right sides of plate windward alternately
Adduction reduces, to force plate reciprocally swinging windward, plate drives piezoelectric vibrator up and down reciprocatingly to swing again windward, and piezoelectric vibrator is free
End deformation is excessive and piezoelectric vibrator deflection is less than its allowable value, the magnetic of two piezoelectric vibrator free ends when acting against on limited block
The deflection of piezoelectric vibrator is zero when iron abuts against together；Piezoelectric vibrator converts mechanical energy during up and down reciprocatingly swinging
At electric energy.
In the present invention, piezoelectric vibrator is mainly to pass through plate windward and wind coupling formation self-excited vibration power generation, windward
Plate is in the presence of the preferable preferable angle windward of generating effect is made, and angle refers to plate windward and carrys out the angle between wind direction windward；Rated wind speed
Under, quiet deflection of the piezoelectric vibrator under magnet repulsive force and wind-force effect is the angle windward of the half of its allowable value, plate windward
For Q=15~60 °；The function of wind deflector is the whirlpool formation condition improved between wind deflector and piezoelectric vibrator in region and improves
Whirlpool intensity, and then improve amplitude, generating capacity and the wind direction adaptation of piezoelectric vibrator.
In the present invention, to ensure that piezoelectric vibrator deflection is less than its allowable value in work, avoiding piezoelectric patches because of compression mistake
It is big and damage, the allowable value of piezoelectric vibrator deflection, when i.e. piezoelectric vibrator free end acts against on limited block adjacent thereto
Maximum deformation quantity isH, L are respectively to press in formula
Electric tachometer indicator overall thickness and jib-length, β=E1/E2, E1、E2The respectively elasticity modulus of substrate and piezoelectric patches,g31Respectively
The dielectric constant and voltage constant of piezoelectric material,For the permissible compression stress of piezoelectric material.
In the present invention, the mode that energy accumulator can be used series, parallel or mix in series and parallel constitutes energy accumulator array, Jin Erti
High generating capacity.
In the present invention, another working method of energy accumulator is mounted on the vehicle of traveling.
Advantage is with characteristic: structure is simple, threshold wind velocity is low, easily improves power generation and power supply capacity by array manner, can be real
The confession electricity operation of instrument and equipment in existing tunnel without chemical cell and is laid with cable；It is met by the way that piezoelectric vibrator end is additional
The coupling of aerofoil and wind motivates piezoelectric vibrator, and structure and installation parameter easily adjust and obtain preferable states, and most critical is pressure
The deformation of electric tachometer indicator bend in one direction, piezoelectric vibrator length direction is identical as wind direction or angle very little, maximum quiet deformation reach certain journey
No longer increase with wind speed after degree and increase, therefore generating capacity is strong, high reliablity.
Detailed description of the invention
Fig. 1 is structural schematic diagram when being worked in a preferred embodiment of the present invention using straight piezoelectric vibrator energy accumulator；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is more concatenated structural schematic diagrams of energy accumulator in a preferred embodiment of the present invention；
Fig. 4 is the structural schematic diagram of more energy accumulator parallel connections in a preferred embodiment of the present invention.
Specific embodiment
Shell a is made of roof a1, bottom wall a2, antetheca a3 and rear wall a4, and the inside left of shell a is set there are two wind deflector
The inner right side of a5, shell a are all separately fixed at antetheca a3 and rear wall a4 equipped with the both ends of crossbeam a6, wind deflector a5 and crossbeam a6
On；All through screw installation, there are two limited block b, wind deflector a5 and limits at wind deflector a5 for the inside of antetheca a3 and rear wall a4
Block b is symmetrically arranged at the two sides up and down of crossbeam a6 symmetrical centre；All pacify through pressing plate c and screw the two sides up and down of crossbeam a6
Contact surface equipped with piezoelectric vibrator e, piezoelectric vibrator e and crossbeam a6 is horizontal plane, and the two sides of the free end piezoelectric vibrator e are through screw point
The magnet f not being equipped on plate d windward and magnet f, crossbeam a6 or more two sides piezoelectric vibrator e is close to each other and like pole is opposite
Close to installation；Piezoelectric vibrator e is the cantilever beam structure as made of substrate e1 and piezoelectric patches the e2 bonding of equal thickness, and substrate e1 is close
Crossbeam a6 installation, plate d is installed close to piezoelectric patches e2 windward；The free end of piezoelectric vibrator e is located at the right side of wind deflector a5, crossbeam a6
The limited block b of top is placed in the top of the piezoelectric vibrator e above crossbeam a6, and the limited block b below crossbeam a6 is placed under crossbeam a6
The lower section of the piezoelectric vibrator e of side；It is curved for the effect generation after flat construction, installation by magnet f repulsive force before piezoelectric vibrator e installation
Song deformation.
Will have when vehicle quickly passes through from tunnel humorously at wind blows to left side on the right side of shell a；It blows air over and meets
Whirlpool can be generated when aerofoil d behind plate d windward, continuously generating for whirlpool replaces wind pressure at left and right sides of plate d windward with falling off
Ground increases and reduces, to force plate d reciprocally swinging windward, plate d drives piezoelectric vibrator e up and down reciprocatingly to swing again windward, piezoelectricity
The deformation of the free end oscillator e is excessive and acts against when on limited block b piezoelectric vibrator e deflection and is less than its allowable value, two piezoelectricity vibrations
The deflection of piezoelectric vibrator e is zero when the magnet f of the sub- free end e is abutted against together；The process that piezoelectric vibrator e is up and down reciprocatingly swung
In convert mechanical energy into electric energy.
In the present invention, piezoelectric vibrator e is mainly to pass through plate d windward and wind coupling formation self-excited vibration power generation, is met
Aerofoil d is in the presence of the preferable preferable angle windward of generating effect is made, and angle refers to plate d windward and carrys out the angle between wind direction windward；It is specified
Under wind speed, quiet deflection of the piezoelectric vibrator e under magnet f repulsive force and wind-force effect is the half of its allowable value, plate d windward
Angle is Q=15~60 ° windward；The function of wind deflector a5 is the whirlpool life improved between wind deflector a5 and piezoelectric vibrator e in the B of region
At condition and whirlpool intensity is improved, and then improves amplitude, generating capacity and the wind direction adaptation of piezoelectric vibrator e.
In the present invention, to ensure that piezoelectric vibrator e deflection is less than its allowable value in work, avoiding piezoelectric patches e2 because of compression
Excessive and damage, the allowable value of piezoelectric vibrator e deflection, the i.e. free end piezoelectric vibrator e act against on limited block b adjacent thereto
When maximum deformation quantity beH, L distinguish in formula
For the overall thickness and jib-length of piezoelectric vibrator e, β=E1/E2, E1、E2The respectively elasticity modulus of substrate e1 and piezoelectric patches e2,g31The respectively dielectric constant and voltage constant of piezoelectric material,For the permissible compression stress of piezoelectric material.
In the present invention, the mode that energy accumulator can be used series, parallel or mix in series and parallel constitutes energy accumulator array, Jin Erti
High generating capacity.
In the present invention, another working method of energy accumulator is mounted on the vehicle of traveling.
Claims (1)
1. a kind of driving air-flow causes vibration energy accumulator, it is characterised in that: shell is made of roof, bottom wall, antetheca and rear wall, and shell is left
Side sets that there are two wind deflector, right sides to be equipped with crossbeam, and the both ends of wind deflector and crossbeam are all separately fixed on antetheca and rear wall；Antetheca
Two limited blocks are equipped at wind deflector with the inside of rear wall, wind deflector and limited block are all symmetrically arranged at crossbeam pair
The two sides up and down at title center；Crossbeam is equipped with piezoelectric vibrator in two sides up and down, and the contact surface of piezoelectric vibrator and crossbeam is horizontal plane, pressure
Electric tachometer indicator free end two sides are respectively provided with plate windward and magnet, and the magnet above and below crossbeam on the piezoelectric vibrator of two sides is close to each other and same
The property relatively close installation of magnetic pole；Piezoelectric vibrator is the cantilever beam as made of equal thick substrates and piezoelectric piece bonding, and substrate is close to crossbeam
Installation, plate is installed close to piezoelectric patches windward；Piezoelectric vibrator free end is located on the right side of wind deflector, and the limited block above crossbeam is placed in cross
The top of piezoelectric vibrator, the limited block of below the crossbeam are placed in the lower section of the piezoelectric vibrator of below the crossbeam above beam；Piezoelectric vibrator peace
The preceding effect for after flat construction, installation by magnet repulsive force of dress generates bending deformation；When wind blows to left side on the right side of shell
Plate reciprocally swinging windward is forced, plate drives piezoelectric vibrator up and down reciprocatingly to swing again windward, and the deformation of piezoelectric vibrator free end is excessive simultaneously
Piezoelectric vibrator deflection is less than its allowable value when acting against on limited block, and the magnet of two piezoelectric vibrator free ends abuts against together
When piezoelectric vibrator deflection be zero；Under rated wind speed, piezoelectric vibrator quiet deflection is the half of its allowable value, plate is met windward
Wind angle is Q=15~60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710732638.8A CN107453650B (en) | 2017-08-17 | 2017-08-17 | A kind of driving air-flow cause vibration energy accumulator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710732638.8A CN107453650B (en) | 2017-08-17 | 2017-08-17 | A kind of driving air-flow cause vibration energy accumulator |
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| Publication Number | Publication Date |
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| CN107453650A CN107453650A (en) | 2017-12-08 |
| CN107453650B true CN107453650B (en) | 2019-01-11 |
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| CN201710732638.8A Active CN107453650B (en) | 2017-08-17 | 2017-08-17 | A kind of driving air-flow cause vibration energy accumulator |
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| CN108910539A (en) * | 2018-07-02 | 2018-11-30 | 江苏理工学院 | A kind of energy-saving pneumatic conveying system with energy recovery function |
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| EP2151346A1 (en) * | 2008-08-08 | 2010-02-10 | Ludwig Laxhuber | System for using the air pressure acting on a moving vehicle to produce energy |
| KR101251412B1 (en) * | 2012-06-22 | 2013-04-05 | 건국대학교 산학협력단 | Magnetically driven the development device generating unit using piezo-composite materials |
| CN105978403B (en) * | 2016-06-15 | 2017-11-21 | 浙江师范大学 | A kind of fluid coupling excitation energy accumulator for the power supply of blade of wind-driven generator monitoring system |
| CN105932907B (en) * | 2016-06-15 | 2017-10-24 | 浙江师范大学 | A kind of wind turbine gearbox monitoring encourages piezoelectric harvester with eddy flow |
| CN106059391B (en) * | 2016-06-15 | 2017-10-20 | 浙江师范大学 | A kind of piezoelectric beam energy accumulator powered for wind turbine gearbox monitoring system |
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