CN107493036A - A kind of wind-induced vibration energy recycle device based on metal core piezoelectric fabric - Google Patents
A kind of wind-induced vibration energy recycle device based on metal core piezoelectric fabric Download PDFInfo
- Publication number
- CN107493036A CN107493036A CN201710840253.3A CN201710840253A CN107493036A CN 107493036 A CN107493036 A CN 107493036A CN 201710840253 A CN201710840253 A CN 201710840253A CN 107493036 A CN107493036 A CN 107493036A
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- China
- Prior art keywords
- metal core
- piezoelectric fabric
- wind
- interface circuit
- core piezoelectric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000002184 metal Substances 0.000 title claims abstract description 93
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 93
- 239000004744 fabric Substances 0.000 title claims abstract description 69
- 238000006243 chemical reaction Methods 0.000 claims abstract description 37
- 238000004146 energy storage Methods 0.000 claims abstract description 5
- 239000000919 ceramic Substances 0.000 claims description 18
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 2
- -1 cylinder bluff body Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004377 microelectronic Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- 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
- H02N2/186—Vibration harvesters
- H02N2/188—Vibration harvesters adapted for resonant operation
Landscapes
- Wind Motors (AREA)
Abstract
The invention discloses a kind of wind-induced vibration energy recycle device based on metal core piezoelectric fabric, including cylinder bluff body, metal core piezoelectric fabric, base fixed station, interface circuit conversion module, wherein：Metal core piezoelectric fabric is cylinder, and one end of metal core piezoelectric fabric is connected to base fixed station center, and the other end of metal-cored piezoelectric fabric is connected with the center of one end of cylinder bluff body；Interface circuit conversion module is placed in inside base fixed station, and the input of interface circuit conversion module is electrically connected with metal core piezoelectric fabric, and the output end of interface circuit conversion module is connected with load or energy storage device.Wind-induced vibration energy recycle device provided by the invention based on metal core piezoelectric fabric is simple in construction, and resonant frequency reduces, and can reaches the requirement of device resonance under relatively low wind speed, and wind energy can be preferably reclaimed in natural environment.
Description
Technical field
The invention belongs to wind energy energy regenerating field, and in particular to a kind of wind-induced vibration based on metal core piezoelectric fabric
Energy recycle device.
Background technology
Vibrational energy as a kind of energy being widely present in nature, be it is inexhaustible, in the last few years, people
Be increasingly concerned with how to gather vibrational energy and used for people.Wherein wind energy is as a kind of regenerative resource, potentiality to be exploited
It is huge, it is seen everywhere in nature, is easy to collect.For wind-induced vibration, refer to wind when on any bluff, it is right
Body surface, which produces, applies pressure, stronger by producing when vibration frequency is near the resonant frequency of object so as to produce vibration
Vibrating effect, this can produce security threat in the architectural engineerings such as bridge to building this body structure, but in nature, I
This phenomenon can be utilized to design a kind of device just receive energy caused by wind-induced vibration back and forth, carry out supply load use.
In the last few years, as the development of MEMS, many multi-functional small electronic devices of low-power consumption are developed
Come, put among the Military and civil fields such as traffic, medical treatment, information, Aero-Space.At present, microelectronic device generally use tradition
Chemical cell as the energy, but chemical cell exist in itself larger volume, short life, easily influenceed by environment, it is discarded after have dirt
The shortcomings of dye, it have impact on the development of microelectronic device.And by reclaiming the energy in natural environment come to microelectronic device
Energy supply, microelectronic device can be made not produce pollution to environment again while working long hours, accordingly, it is capable to measure recovery power supply
Have become new hot research direction.
At present, there is the device using vortex-induced vibration recovery wind energy, the structure and material of usual device in itself is special
Property just determines the resonant frequency of device, and resonant frequency is higher means that device could only produce under higher wind speed
Vortex-induced vibration.The resonant frequency of existing vortex-induced vibration wind energy retracting device is generally higher, and wind speed often reaches in natural environment
Less than the requirement of vortex-induced vibration, wind energy can not be efficiently reclaimed.
The content of the invention
It is an object of the invention to provide a kind of wind-induced vibration energy recycle device based on metal core piezoelectric fabric.
In order to realize foregoing invention purpose, the present invention takes following scheme：A kind of wind based on metal core piezoelectric fabric
Vibration energy recovery device, including cylinder bluff body, metal core piezoelectric fabric, base fixed station, interface circuit conversion module are caused,
Metal core piezoelectric fabric is set on the base fixed station, and the top of metal-cored piezoelectric fabric sets cylinder bluff body, wherein containing
Metal-cored piezoelectric fabric is cylinder, and interface circuit conversion module is set inside base fixed station, and the interface circuit converts mould
The input of block electrically connects with metal core piezoelectric fabric, and output end and the load or energy storage of the interface circuit conversion module fill
Put connection.
Further, the metal core piezoelectric fabric includes metal-cored, piezoelectric ceramics and sprayed metal layer, the gold
Category core is located at metal core piezoelectric fabric center, and the piezoelectric ceramics is located at metal core piezoelectric fabric intermediate layer, the spraying plating
Metal level is located at metal core piezoelectric fabric top layer.
Further, the sprayed metal layer is 2n+1 sections, and n is positive integer, and every section of the sprayed metal layer is made pottery along piezoelectricity
Porcelain is axially equidistantly uniformly distributed.
Further, the number of the interface circuit conversion module is 2n+1, and n is positive integer, and each interface circuit turns
Change module connection corresponding with metal-cored the two poles of the earth formed with every section of sprayed metal layer, each interface circuit conversion module knot
Structure is identical, includes rectifying part, the voltage stabilization part being sequentially connected.
Further, the output end of each interface circuit conversion module is connected in parallel to load.
Further, n values are 1.
Further, the cylinder bluff body diameter is more than metal core piezoelectric fabric diameter.
Further, the cylinder bluff body uses soft pvc plastic.
Compared to existing technology, the invention has the advantages that：1) present invention is simple and compact for structure, is easy to real
It is existing；2) metal core piezoelectric fabric is employed, the resonant frequency compared to Common piezoelectricity sheet devices is relatively low, i.e., under relatively low wind speed
Can reaches the requirement of device resonance, and wind energy can be preferably reclaimed in natural environment；3) and for Common piezoelectricity piece, containing gold
Belong to core piezoelectric fabric for cylinder, compared with chip type piezoelectric piece, bigger external force can be born, prevent piezo-electric device from damaging in itself；
4) because metal core piezoelectric fabric is cylindric, the wind of odd number section sprayed metal layer in any direction above to above when
Can some piezoelectric ceramics produce larger bending, you can so that mechanical energy is converted into electric energy, then by sprayed metal layer
Electric energy is passed with metal-cored, therefore device can reclaim the wind energy of any direction in plane, improve the recovery of device
Efficiency.
Further detailed description is done to the present invention below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the structure longitudinal section of the embodiment of the present invention.
Fig. 3 is the longitudinal section of the metal core piezoelectric fabric of the embodiment of the present invention.
Fig. 4 is the device circuit figure of the embodiment of the present invention.
Embodiment
With reference to Fig. 1~4, a kind of wind-induced vibration energy recycle device based on metal core piezoelectric fabric of the invention, bag
Cylinder bluff body 1, metal core piezoelectric fabric 2, base fixed station 3, interface circuit conversion module 4 are included, on the base fixed station 3
Metal core piezoelectric fabric 2 is set, and the top of metal-cored piezoelectric fabric 2 sets cylinder bluff body 1, wherein metal core piezoelectric fabric
2 be cylinder, and the inside of base fixed station 3 sets interface circuit conversion module 4, the input of the interface circuit conversion module 4
Electrically connected with metal core piezoelectric fabric 2, the output end of the interface circuit conversion module 4 is connected with load or energy storage device.
Further, the metal core piezoelectric fabric 2 includes metal-cored 6, piezoelectric ceramics 5 and sprayed metal layer, institute
To state metal-cored 6 and be located at the center of metal core piezoelectric fabric 2, the piezoelectric ceramics 5 is located at the intermediate layer of metal core piezoelectric fabric 2,
The sprayed metal layer 7 is located at the top layer of metal core piezoelectric fabric 2.
Further, the sprayed metal layer 7 is 2n+1 sections, and n is positive integer, and every section of the sprayed metal layer 7 is along piezoelectricity
Ceramics 5 are axially equidistantly uniformly distributed.
Further, the number of the interface circuit conversion module 4 is 2n+1, and n is positive integer, and each interface circuit turns
Change module 4 and convert mould with metal-cored 6 connections corresponding with the two poles of the earth that every section of sprayed metal layer 7 forms, each interface circuit
The structure of block 4 is identical, includes rectifying part, the voltage stabilization part being sequentially connected.
Further, the output end of each interface circuit conversion module 4 is connected in parallel to load.
Further, n values are 1.
Further, the diameter of cylinder bluff body 1 is more than the diameter of metal core piezoelectric fabric 2.
Further, the cylinder bluff body 1 uses soft pvc plastic.
Wind-induced vibration energy recycle device disclosed by the invention based on metal core piezoelectric fabric compares Common piezoelectricity piece
The resonant frequency of device is relatively low, and can reaches the requirement of device resonance under relatively low wind speed, can be more preferable in natural environment
Recovery wind energy.Simple in construction, damage-retardation ability is strong, can reclaim the wind energy of all directions.
Further detailed description is done to the present invention with reference to embodiment.
Embodiment 1
With reference to shown in Fig. 1, according to an embodiment of the invention, a kind of wind-induced vibration energy based on metal core piezoelectric fabric
Retracting device, including cylinder bluff body 1, metal core piezoelectric fabric 2, base fixed station 3, interface circuit conversion module 4.
With reference to shown in Fig. 1, according to an embodiment of the invention, metal core piezoelectric fabric 2 is cylinder, metal core piezoelectricity
One end of fiber 2 is connected to the center of base fixed station 3, the other end of metal-cored piezoelectric fabric 2 with one end of cylinder bluff body 1
The heart connects；Interface circuit conversion module 4 is placed in inside base fixed station 3, and the input of interface circuit conversion module 4 is with containing metal
Core piezoelectric fabric 2 is electrically connected, and the output end of interface circuit conversion module 4 is connected with load or energy storage device.
According to an embodiment of the invention, the diameter of cylinder bluff body 1 is more than the diameter of metal core piezoelectric fabric 2, and material is density
Less material, such as soft pvc plastic etc..
With reference to shown in Fig. 1, Fig. 2 and Fig. 3, according to an embodiment of the invention, metal core piezoelectric fabric 2 include metal-cored 6,
Piezoelectric ceramics 5 and sprayed metal layer 7, metal-cored 6 are located at the center of metal core piezoelectric fabric 2, and piezoelectric ceramics 5 is wrapped in metal
The outer layer of core 6, sprayed metal layer 7 are located at the top layer of metal core piezoelectric fabric 2.
With reference to shown in Fig. 1, Fig. 2 and Fig. 3, according to an embodiment of the invention in, sprayed metal layer 7 is 2n+1 sections, and n is just whole
Number, every section of sprayed metal layer 7 are axially equidistantly uniformly distributed along piezoelectric ceramics 5.N values 1 are taken in the present embodiment, i.e., in piezoelectric ceramics
5 top layer is axially equidistantly evenly distributed with 3 sections of sprayed metal layers along piezoelectric ceramics 5.
With reference to shown in Fig. 3 and Fig. 4, according to an embodiment of the invention, the number of interface circuit conversion module 4 is 3, each
Interface circuit conversion module 4 with metal-cored 6 with the two poles of the earth that every section of sprayed metal layer 7 forms are corresponding connects.When wind is to this hair
During bright device, piezoelectric ceramics 5 produces larger Bending Deformation, produces piezo-electric effect, then pass through sprayed metal layer 7 and metal
Core 6 forms the two poles of the earth and is transferred to interface circuit conversion module 4.Sprayed metal layer 7 ensures along 5 axial equidistantly distributed of piezoelectric ceramics
When any direction is dried, a two poles of the earth can be formed.The output end of each interface circuit conversion module 4 is connected in parallel to load,
When any one direction is dried, metal-cored 6 with the two poles of the earth that every section of sprayed metal layer 7 forms and interface circuit conversion module 4 and
Load forms a complete circuit, and energy is finally delivered to load.
With reference to shown in Fig. 4, the structure of 3 interface circuit conversion modules 4 is identical, include be sequentially connected rectifying part,
Voltage stabilization part.The two poles of the earth of metal core piezoelectric fabric 2 are connected with rectification module input, and alternating current caused by piezo-electric effect is turned
Direct current is turned to, then by Voltage stabilizing module, exports stable voltage.
Base fixed station 3 is located at the lower section of whole device, using hard rigid materials such as stainless steels.Interface circuit conversion module 4
Base fixed station 3 is placed in, base fixed station 3 protects bottom while a fixed platform is provided for metal core piezoelectric fabric 2
The interface circuit conversion module 4 in portion.
The present invention specific work process be：
Wind-induced vibration energy recycle device disclosed by the invention based on metal core piezoelectric fabric is positioned in wind field,
The wind load of horizontal plane blows to device from any direction, and when distinguished and admirable body flows through cylinder bluff body 1, under certain flow velocity, cylinder is blunt
The surface of body 1 can be alternately produced the whirlpool on detaching structure surface, this alternate whirlpool can be generated on cylinder bluff body 1 following current to
With crossing current to periodically variable fluctuation pressure.It is distinguished and admirable to know from experience initiating device because whole device is under resilient support state
Periodic vibration, when wind speed reaches certain numerical value, and device vibration frequency is in resonant frequency, cylinder bluff body 1 can produce strongly
Vortex-induced vibration.
The vibration of cylinder bluff body 1 can drive the generation of metal core piezoelectric fabric 2 to vibrate, in metal core piezoelectric fabric 2
For piezoelectric ceramics 5 when deforming upon, because the material property of itself produces piezo-electric effect, piezoelectric ceramics 5 will machine caused by vibration
Tool can be converted into AC energy, and AC energy is delivered to interface circuit conversion module by the two poles of the earth of metal core piezoelectric fabric 2
4, AC energy is converted into by direct current energy by full bridge rectifier in interface circuit conversion module 4, then pass through voltage stabilizing portion
Divide progress voltage regulation filtering to be output in load, energized for load.
Claims (8)
1. a kind of wind-induced vibration energy recycle device based on metal core piezoelectric fabric, it is characterised in that including cylinder bluff body
[1], metal core piezoelectric fabric (2), base fixed station (3), interface circuit conversion module (4), on the base fixed station (3)
Metal core piezoelectric fabric (2) is set, and the top of metal-cored piezoelectric fabric (2) sets cylinder bluff body (1), wherein metal core pressure
Electric fiber (2) is cylinder, and interface circuit conversion module (4) is set inside base fixed station (3), and the interface circuit converts mould
The input of block (4) electrically connects with metal core piezoelectric fabric (2), and the output end of the interface circuit conversion module (4) is with bearing
Carry or energy storage device connects.
2. the wind-induced vibration energy recycle device according to claim 1 based on metal core piezoelectric fabric, its feature exist
In the metal core piezoelectric fabric (2) includes metal-cored (6), piezoelectric ceramics (5) and sprayed metal layer, described metal-cored
(6) it is located at metal core piezoelectric fabric (2) center, the piezoelectric ceramics (5) is located at metal core piezoelectric fabric (2) intermediate layer,
The sprayed metal layer (7) is located at metal core piezoelectric fabric (2) top layer.
3. the wind-induced vibration energy recycle device according to claim 2 based on metal core piezoelectric fabric, its feature exist
In the sprayed metal layer (7) is 2n+1 sections, and n is positive integer, and every section of the sprayed metal layer (7) is axial along piezoelectric ceramics (5)
Equidistantly it is uniformly distributed.
4. the wind-induced vibration energy recycle device according to claim 3 based on metal core piezoelectric fabric, its feature exist
In the number of the interface circuit conversion module (4) is 2n+1, and n is positive integer, and each interface circuit conversion module (4) is equal
With metal-cored (6) the corresponding connection with the two poles of the earth that every section of sprayed metal layer (7) forms, each interface circuit conversion module (4)
Structure is identical, includes rectifying part, the voltage stabilization part being sequentially connected.
5. the wind-induced vibration energy recycle device according to claim 4 based on metal core piezoelectric fabric, its feature exist
In the output end of each interface circuit conversion module (4) is connected in parallel to load.
6. the wind-induced vibration energy recycle device based on metal core piezoelectric fabric according to claim 3 or 4, its feature
It is, n values are 1.
7. the wind-induced vibration energy recycle device according to claim 1 based on metal core piezoelectric fabric, its feature exist
In cylinder bluff body (1) diameter is more than metal core piezoelectric fabric (2) diameter.
8. the wind-induced vibration energy recycle device according to claim 1 based on metal core piezoelectric fabric, its feature exist
In the cylinder bluff body (1) uses soft pvc plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710840253.3A CN107493036B (en) | 2017-09-18 | 2017-09-18 | A kind of wind-induced vibration energy recycle device based on metal core piezoelectric fabric |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710840253.3A CN107493036B (en) | 2017-09-18 | 2017-09-18 | A kind of wind-induced vibration energy recycle device based on metal core piezoelectric fabric |
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| CN107493036A true CN107493036A (en) | 2017-12-19 |
| CN107493036B CN107493036B (en) | 2019-09-27 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217179A (en) * | 2008-01-09 | 2008-07-09 | 南京航空航天大学 | A piezoelectric ceramic fiber with metal cores |
| CN101304069A (en) * | 2008-06-13 | 2008-11-12 | 南京航空航天大学 | Piezoelectric ceramic fibre containing metal core painted by electrode partly |
| CN101350577A (en) * | 2007-07-20 | 2009-01-21 | 陈少宇 | Generating apparatus using piezoelectric ceramics |
| CN105047813A (en) * | 2015-06-17 | 2015-11-11 | 扬州大学 | Liquid core piezoelectric polymer device and preparation method and application thereof |
| CN105258629A (en) * | 2015-11-06 | 2016-01-20 | 扬州大学 | Multi-electrode cored piezoelectric polymer amplification apparatus |
| CN205157159U (en) * | 2015-11-18 | 2016-04-13 | 扬州大学 | Air current flow field measuring device |
| CN205246696U (en) * | 2015-11-18 | 2016-05-18 | 扬州大学 | Liquid acceleration measurement device |
| CN105928572A (en) * | 2016-04-27 | 2016-09-07 | 扬州大学 | Flow measuring device of piezoelectric fiber containing metal core |
| CN205725110U (en) * | 2016-06-29 | 2016-11-23 | 南昌工程学院 | Vibrational energy harvester in Novel pressure electric-type water |
-
2017
- 2017-09-18 CN CN201710840253.3A patent/CN107493036B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101350577A (en) * | 2007-07-20 | 2009-01-21 | 陈少宇 | Generating apparatus using piezoelectric ceramics |
| CN101217179A (en) * | 2008-01-09 | 2008-07-09 | 南京航空航天大学 | A piezoelectric ceramic fiber with metal cores |
| CN101304069A (en) * | 2008-06-13 | 2008-11-12 | 南京航空航天大学 | Piezoelectric ceramic fibre containing metal core painted by electrode partly |
| CN105047813A (en) * | 2015-06-17 | 2015-11-11 | 扬州大学 | Liquid core piezoelectric polymer device and preparation method and application thereof |
| CN105258629A (en) * | 2015-11-06 | 2016-01-20 | 扬州大学 | Multi-electrode cored piezoelectric polymer amplification apparatus |
| CN205157159U (en) * | 2015-11-18 | 2016-04-13 | 扬州大学 | Air current flow field measuring device |
| CN205246696U (en) * | 2015-11-18 | 2016-05-18 | 扬州大学 | Liquid acceleration measurement device |
| CN105928572A (en) * | 2016-04-27 | 2016-09-07 | 扬州大学 | Flow measuring device of piezoelectric fiber containing metal core |
| CN205725110U (en) * | 2016-06-29 | 2016-11-23 | 南昌工程学院 | Vibrational energy harvester in Novel pressure electric-type water |
Non-Patent Citations (2)
| Title |
|---|
| 单鑫 等: "半电极压电纤维能量收集建模与仿真", 《仪表技术》 * |
| 边义祥 等: "四电极含芯压电纤维简谐振动传感特性研究", 《压电与声光》 * |
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