CN106286139B - A kind of concentrated wind energy piezoelectric energy collecting device - Google Patents
A kind of concentrated wind energy piezoelectric energy collecting device Download PDFInfo
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- CN106286139B CN106286139B CN201610639249.6A CN201610639249A CN106286139B CN 106286139 B CN106286139 B CN 106286139B CN 201610639249 A CN201610639249 A CN 201610639249A CN 106286139 B CN106286139 B CN 106286139B
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- wind
- piezoelectric membrane
- energy
- pvdf piezoelectric
- hold assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2220/00—Application
- F05B2220/70—Application in combination with
- F05B2220/709—Piezoelectric means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Wind Motors (AREA)
Abstract
The present invention relates to a kind of concentrated wind energy piezoelectric energy collecting devices, including wind gathering cavity, PVDF piezoelectric membrane, hold assembly, bottom plate, stud, the wind gathering cavity and hold assembly are fixed by screws on bottom plate respectively, the hold assembly has upper and lower two clamping plates, one end of PVDF piezoelectric membrane is fixed by screw, so that PVDF piezoelectric membrane is in the fixed free cantilever position in one end in one end；The wind gathering cavity is sequentially connected and is formed by air intake vent, contraction section, air outlet three parts, and the air intake vent is larger, and towards wind direction is come, air outlet is smaller, towards PVDF piezoelectric membrane；And bottom plate is fixed on stud by nut；Wind energy can be accelerated, rectified and be homogenized by wind gathering cavity, improve the unstability of wind energy, improve the energy-flux density of wind energy.The concentrated wind energy piezoelectric energy collecting device has the characteristics that work starting wind velocity is low, wind energy collecting is high-efficient.
Description
Technical field
The invention belongs to wind power generation fields, are related to a kind of concentrated wind energy piezoelectric energy collecting device.
Background technique
Since the worsening shortages and environmental problem of conventional energy resource are more and more prominent, the research and development of new energy are by more next
The concern of more people.Wind energy be it is a kind of on ground be widely present, be inexhaustible, is nexhaustible, being easy to utilize it is reproducible green
The color energy has obtained quick development in recent years, is a kind of energy with fastest developing speed in new energy.Wind-power electricity generation also becomes
The important topic of various countries' research.
Traditional wind volume is big, and electricity generation may be implemented.But as wireless network and miniature electronic are set
Standby rapid development requires the power source performance of these equipment higher and higher.It is powered using traditional chemical cell, due to its body
Product is big, energy density is low, service life is limited, needs to regularly replace, it is difficult to meet the needs of microelectronic component energy supply.And from ring
Energy is obtained in border and is converted to micro- energy source device of electric energy since with small in size, light weight, the service life is long, no replacement is required, green
The advantages that colour circle is protected, is a kind of ideal source of low-power electronic devices.
Piezoelectricity wind energy collecting device is because its structure is simple, energy density is big, the coefficient of coup is high, is easy to the system integration and micromation
The advantages that, it is one of the important directions of the micro- energy research of current wind energy.But there are threshold wind velocity height, efficiency of energy collection are low for it
It is insufficient.
Summary of the invention
It is an object of the invention to solve existing piezoelectricity wind energy collecting device to start work, wind energy under low wind speed environments
The low problem of collecting efficiency proposes a kind of concentrated wind energy piezoelectric energy collecting device.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of concentrated wind energy piezoelectric energy collecting device, including wind gathering cavity, PVDF piezoelectric membrane, hold assembly, bottom plate,
Stud, the wind gathering cavity and hold assembly are fixed by screws on bottom plate respectively, and the hold assembly has upper and lower two
Block clamping plate is fixed one end of PVDF piezoelectric membrane by screw, so that PVDF piezoelectric membrane is in the fixed one end freedom in one end
Cantilever position；The wind gathering cavity is sequentially connected and is formed by air intake vent, contraction section, air outlet three parts, the air intake vent compared with
Greatly, towards wind direction is come, air outlet is smaller, and towards PVDF piezoelectric membrane, and bottom plate is fixed on stud by nut；Pass through tune
The hold assembly is saved, changes air outlet of the PVDF piezoelectric membrane with respect to wind gathering cavity along the position of x, y, z axis direction, passes through tune
Fixation position of the PVDF piezoelectric membrane relative to air outlet is saved, to obtain optimal wind energy collecting efficiency.
The air intake vent of the wind gathering cavity is larger, and to obtain more wind energies, wind will be accelerated by contraction section, is whole
Stream, the wind energy of low-density will boil down to high density, wind speed can also improve, and the vibration of PVDF piezoelectric membrane then be driven, to mention
The collection efficiency of high wind energy.
It can change the fixation position of PVDF piezoelectric membrane by adjusting hold assembly, multiple row clamping can be opened on bottom plate
The mounting hole of component, to change the front-rear position of hold assembly and PVDF piezoelectric membrane on bottom plate, i.e. change PVDF piezoelectricity is thin
Front-rear position of the film relative to air outlet；Distance on hold assembly between two fixing screws is larger, thus it is possible to vary PVDF piezoelectricity
Left-right position of the film relative to air outlet；By the height for changing hold assembly lower clamp plate, thus it is possible to vary PVDF piezoelectric membrane
Upper and lower position relative to air outlet.Under identical wind speed, PVDF piezoelectric membrane fixation position different on hold assembly,
The efficiency of wind energy collecting is also different.
Compared with prior art, the invention has the benefit that
Wind energy can be accelerated, rectified and be homogenized by wind gathering cavity, reduced the turbulivity of natural wind, improved wind energy
Unstability improves the energy-flux density of wind energy.The concentrated wind energy piezoelectric energy collecting device low, wind energy with work threshold wind velocity
The features such as collection efficiency is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of concentrated wind energy piezoelectric energy collecting device.
Fig. 2 is the main view of concentrated wind energy piezoelectric energy collecting device.
Fig. 3 is the top view of concentrated wind energy piezoelectric energy collecting device.
Specific embodiment
Below by the drawings and specific embodiments, the present invention will be further described.
As shown in Figure 1 to Figure 3, a kind of concentrated wind energy piezoelectric energy collecting device, including wind gathering cavity 1, PVDF piezoelectricity are thin
Film 2, hold assembly 3, bottom plate 4, stud 5, the wind gathering cavity 1 and hold assembly 3 are fixed by screws in respectively on bottom plate 4,
The hold assembly 3 has upper and lower two clamping plates, is fixed one end of PVDF piezoelectric membrane 2 by screw, so that PVDF is pressed
Conductive film 2 is in the fixed free cantilever position in one end in one end；The wind gathering cavity 1 is by air intake vent 6, contraction section 7, air outlet 8
Three parts are sequentially connected composition, and the air intake vent 6 is larger, and towards wind direction is come, air outlet 8 is smaller, towards PVDF piezoelectric membrane
2；And bottom plate 4 is fixed on stud 5 by nut；By adjusting the hold assembly 3, it is relatively poly- to change PVDF piezoelectric membrane 2
The air outlet 8 of wind cavity 1 is along the position of x, y, z axis direction, by adjusting fixation of the PVDF piezoelectric membrane 2 relative to air outlet 8
Position, to obtain optimal wind energy collecting efficiency.
As shown in Fig. 2, the air intake vent 6 is larger, to obtain more wind energies, wind enters from air intake vent 6, passes through contraction section 7
Will be accelerated, be rectified, the wind energy of low-density will boil down to high density, wind speed can also be improved, and then drive PVDF
Piezoelectric membrane 2 vibrates.So that PVDF piezoelectric membrane 2 also can effectively vibrate at low wind speeds, to realize the acquisition of wind energy.Concentration
Wind energy afterwards reduces the turbulivity of natural wind, improves the energy-flux density of wind energy, improves the unstability of wind energy, greatly improve wind
The collecting efficiency of energy.
As shown in Fig. 2, the position that can change PVDF piezoelectric membrane 2 with respect to air outlet 8 by adjusting hold assembly 3.It can
To open the mounting hole of multiple row hold assembly 3 on bottom plate 4, different mounting holes is selected, thus it is possible to vary hold assembly 3 and PVDF pressure
The position of conductive film 2 along the y-axis direction, i.e. position of the change PVDF piezoelectric membrane 2 relative to air outlet 8 along the y-axis direction；Such as Fig. 3
Shown, since the distance between two fixing screws on hold assembly 3 is larger, therefore adjustable PVDF piezoelectric membrane 2 is along the x-axis direction
Position, it can change position of the PVDF piezoelectric membrane 2 relative to air outlet 8 along the x-axis direction；As shown in Fig. 2, passing through change
The height of 3 lower clamp plate of hold assembly, thus it is possible to vary the position of PVDF piezoelectric membrane 2 along the z-axis direction, it can change PVDF piezoelectricity
Position of the film 2 relative to air outlet 8 along the z-axis direction.Under identical wind friction velocity, PVDF piezoelectric membrane 2 is in different installations
The wind energy collecting effect of position also can be different, can be obtained by adjusting PVDF piezoelectric membrane 2 relative to the fixation position of air outlet 8
Obtain more preferably wind energy collecting efficiency.
Claims (1)
1. a kind of concentrated wind energy piezoelectric energy collecting device, it is characterised in that: including wind gathering cavity (1), PVDF piezoelectric membrane
(2), hold assembly (3), bottom plate (4), stud (5), the wind gathering cavity (1) and hold assembly (3) are fixed by screw respectively
On bottom plate (4), the hold assembly (3) has upper and lower two clamping plates, by screw by one end of PVDF piezoelectric membrane (2)
It is fixed, so that PVDF piezoelectric membrane (2) is in the fixed free cantilever position in one end in one end；The wind gathering cavity (1) is by inlet air
Mouth (6), contraction section (7), air outlet (8) three parts are sequentially connected composition, and the air intake vent (6) is larger, towards wind direction is come, out
Air port (8) is smaller, towards PVDF piezoelectric membrane (2)；And bottom plate (4) is fixed on stud (5) by nut；Described in adjusting
Hold assembly (3), changes the air outlet (8) of PVDF piezoelectric membrane (2) with respect to wind gathering cavity (1) along the position of x, y, z axis direction,
By adjusting the fixation position of PVDF piezoelectric membrane (2) relative to air outlet (8), to obtain optimal wind energy collecting efficiency；Institute
The air intake vent for stating wind gathering cavity is larger, and to obtain more wind energies, wind will be accelerated, be rectified by contraction section, the wind of low-density
It can be compressed to high density, improve wind speed, the vibration of PVDF piezoelectric membrane is then driven, to improve the collection efficiency of wind energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610639249.6A CN106286139B (en) | 2016-08-08 | 2016-08-08 | A kind of concentrated wind energy piezoelectric energy collecting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610639249.6A CN106286139B (en) | 2016-08-08 | 2016-08-08 | A kind of concentrated wind energy piezoelectric energy collecting device |
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| CN106286139A CN106286139A (en) | 2017-01-04 |
| CN106286139B true CN106286139B (en) | 2019-10-11 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101931438B1 (en) | 2017-07-14 | 2018-12-20 | 최영재 | Wind power generating apparatus using piezoelectric effect |
| CN108155831B (en) * | 2018-03-16 | 2024-04-26 | 南昌工程学院 | Piezoelectric-triboelectric composite energy collector for collecting wind energy |
| CN108590973B (en) * | 2018-04-26 | 2019-06-07 | 大连理工大学 | A kind of flowed energy conversion equipment based on piezoelectricity |
| CN109818529B (en) * | 2019-03-26 | 2020-02-14 | 上海大学 | Piezoelectric wind energy collector and control method |
| CN110318939B (en) * | 2019-06-28 | 2021-08-17 | 杭州派祺空气净化科技有限公司 | Wind gathering device for wind power gathering power generation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8102072B2 (en) * | 2008-12-31 | 2012-01-24 | Kuei-Sheng Tsou | Aerodynamic vibration power-generation device |
| CN103066885A (en) * | 2013-01-28 | 2013-04-24 | 重庆大学 | Wind-energy piezoelectric conversion generator by using vortex-induced vibration |
| CN202954926U (en) * | 2012-11-04 | 2013-05-29 | 温广川 | Breeze piezoelectric device |
| CN105680717A (en) * | 2016-04-18 | 2016-06-15 | 苏州大学 | Blade-type composite pneumatic energy collector |
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2016
- 2016-08-08 CN CN201610639249.6A patent/CN106286139B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8102072B2 (en) * | 2008-12-31 | 2012-01-24 | Kuei-Sheng Tsou | Aerodynamic vibration power-generation device |
| CN202954926U (en) * | 2012-11-04 | 2013-05-29 | 温广川 | Breeze piezoelectric device |
| CN103066885A (en) * | 2013-01-28 | 2013-04-24 | 重庆大学 | Wind-energy piezoelectric conversion generator by using vortex-induced vibration |
| CN105680717A (en) * | 2016-04-18 | 2016-06-15 | 苏州大学 | Blade-type composite pneumatic energy collector |
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