CN201372898Y - A wind energy conversion device based on piezoelectric materials - Google Patents
A wind energy conversion device based on piezoelectric materials Download PDFInfo
- Publication number
- CN201372898Y CN201372898Y CN200820222696U CN200820222696U CN201372898Y CN 201372898 Y CN201372898 Y CN 201372898Y CN 200820222696 U CN200820222696 U CN 200820222696U CN 200820222696 U CN200820222696 U CN 200820222696U CN 201372898 Y CN201372898 Y CN 201372898Y
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- Prior art keywords
- piezoelectric
- wind energy
- energy conversion
- piezoelectric vibrator
- piezoelectric device
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 22
- 239000000463 material Substances 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 239000002033 PVDF binder Substances 0.000 claims description 7
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 7
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 6
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 3
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 abstract 1
- 235000012431 wafers Nutrition 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 5
- 230000009466 transformation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
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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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- Wind Motors (AREA)
Abstract
本实用新型公开的一种基于压电材料的风能转换装置，包括风轮转子上固定有桨叶的风车装置，风车装置的一端设置有旋转轴，还包括压电装置，压电装置的外部封装有圆环状的压电装置外盖，压电装置内部的截面为圆形空腔，旋转轴穿过压电装置内部空腔和风能转换支架相连接，压电装置的空腔中、围绕旋转轴均匀固定有扇形的不相连接的压电振子支架，钢球放置在压电振子支架外侧上，压电振子支架和压电装置外盖之间留有间隙，使得钢球刚好可以在该间隙内滚动，相邻的两个压电振子支架之间设置有悬臂梁，该悬臂梁的长度大于压电振子支架的径向长度，悬臂梁的上下表面上粘贴有压电晶片。本实用新型基于压电材料的风能转换装置，转换效率高，且成本低。
The utility model discloses a wind energy conversion device based on piezoelectric materials, which includes a windmill device with blades fixed on the wind wheel rotor, a rotating shaft is arranged at one end of the windmill device, a piezoelectric device, and an external package of the piezoelectric device There is a ring-shaped piezoelectric device outer cover. The internal section of the piezoelectric device is a circular cavity. The rotating shaft passes through the internal cavity of the piezoelectric device and connects with the wind energy conversion bracket. The cavity of the piezoelectric device rotates around The shaft is evenly fixed with a fan-shaped unconnected piezoelectric vibrator bracket, and the steel ball is placed on the outside of the piezoelectric vibrator bracket. There is a gap between the piezoelectric vibrator bracket and the outer cover of the piezoelectric device, so that the steel ball can just fit in the gap Rolling inside, a cantilever beam is arranged between two adjacent piezoelectric vibrator supports, the length of the cantilever beam is greater than the radial length of the piezoelectric vibrator support, and piezoelectric wafers are pasted on the upper and lower surfaces of the cantilever beams. The utility model is a wind energy conversion device based on piezoelectric materials, which has high conversion efficiency and low cost.
Description
Technical field
The utility model belongs to technical field of wind power generating equipment, relates to a kind of wind energy converter, is specifically related to a kind of wind energy converter based on piezoelectric material.
Background technique
Wind energy belongs to renewable energy sources, has inexhaustible, nexhaustible, free of contamination characteristics, so wind-power electricity generation is the renewable energy sources that tool development potentiality and business development are worth.Existing wind-power electricity generation often adopts the form of electromagnetic coupling, and its conversion efficiency is generally all lower, and volume is big, cost is than higher.
Summary of the invention
The purpose of this utility model provides a kind of wind energy converter based on piezoelectric material, adopts the PVDF piezoelectric material to make the piezoelectric vibrator device, thereby wind energy is converted to electric energy, has improved the conversion efficiency of wind energy, and can reduce the cost of wind-power electricity generation.
The technological scheme that the utility model adopted is, a kind of wind energy converter based on piezoelectric material, comprise the wind mill equipment that is fixed with blade on the wind wheeling rotor, one end of wind mill equipment is provided with running shaft, also comprise piezoelectric device, the outer enclosure of piezoelectric device has circular piezoelectric device enclosing cover, the cross section of piezoelectric device inside is a circular cavity, running shaft passes the piezoelectric device internal cavities and is connected with the wind energy transformation support, in the cavity of piezoelectric device, evenly be fixed with the fan-shaped piezoelectric vibrator support that is not connected around running shaft, steel ball is placed on the piezoelectric vibrator support outside, leave the gap between piezoelectric vibrator support and the piezoelectric device enclosing cover, make steel ball just can in this gap, roll, be provided with overhang between two adjacent piezoelectric vibrator supports, the length of this overhang is pasted with piezoelectric chip greater than the radial length of piezoelectric vibrator support on the upper and lower surface of overhang, and the width of piezoelectric chip equals the width of overhang.
Characteristics of the present utility model also are:
Wind energy conversion support bottom wherein is provided with base, and base is connected by the two ends of bearing A, bearing B and running shaft, and the top of bearing A, bearing B is fixed with loam cake A, loam cake B respectively.
Piezoelectric chip wherein adopts polyvinylidene fluoride PVDF piezoelectric material.
Piezoelectric vibrator support wherein and overhang adopt the acrylonitrile-butadiene-styrene copolymer ABS plastic.
The beneficial effects of the utility model are that employing wind mill equipment, piezoelectric device and the structure that the wind energy conversion support is connected utilize the piezoelectric vibrator device that wind energy transformation is electric energy, have improved the conversion efficiency of wind energy, and can reduce the cost of wind-power electricity generation.
Description of drawings
Fig. 1 is the structural representation of the utility model wind energy converter;
Fig. 2 is the structural representation of piezoelectric device in the utility model wind energy converter.
Among the figure, 1. wind mill equipment, 2. piezoelectric device, 3. wind energy conversion support, 4. overhang, 5. piezoelectric chip, 6. steel ball, 7. piezoelectric vibrator support, 8. piezoelectric device enclosing cover, 9. running shaft, 10. base, 11. loam cake A, 12. bearing A, 13. bearing B, 14. loam cake B.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
The utility model is based on the structure of the wind energy converter of piezoelectric material, as shown in Figure 1, comprise the wind mill equipment 1 that is fixed with blade on the wind wheeling rotor, one end of wind mill equipment 1 is provided with running shaft 9, also comprise piezoelectric device 2, piezoelectric device 2 outer enclosure have circular piezoelectric device enclosing cover 8, the cross section of piezoelectric device 2 inside is a circular cavity, running shaft 9 passes piezoelectric device 2 internal cavities and is connected with wind energy conversion support 3, around the interior running shaft 9 of piezoelectric device 2 cavitys, evenly be fixed with four fan-shaped piezoelectric vibrator supports 7 that are not connected, four steel balls 6 are placed on respectively on four piezoelectric vibrator support 7 outsides, leave the gap between piezoelectric vibrator support 7 and piezoelectric device enclosing cover 8 inwalls, make steel ball 6 just can in this gap, roll, four overhangs 4 are fixed between adjacent two piezoelectric vibrator supports 7 successively, overhang 4 length are greater than piezoelectric vibrator support 7 radial lengths, the surface sticks on the upper and lower surface of overhang 4 for the piezoelectric chip 5 of aluminium electrode, and the width of piezoelectric chip 5 equals the width of overhang 4.Piezoelectric chip 5 adopts polyvinylidene fluoride PVDF piezoelectric plastics, and piezoelectric vibrator support 7 and overhang 4 adopt the acrylonitrile-butadiene-styrene copolymer ABS plastic.Wind energy conversion support 3 bottoms are provided with base 10, and base 10 is connected with the two ends of running shaft 9 by bearing A12, bearing B13, and the top of bearing A12, bearing B13 is fixed with loam cake A11, loam cake B14 respectively.
In conjunction with Fig. 2 the principle of the utility model based on the wind energy converter of piezoelectric material is described, after wind mill equipment 1 captures wind energy, passes to piezoelectric device 2, rotate together thereby drive piezoelectric device 2 by running shaft 9.The steel ball 6 that the overhang 4 of piezoelectric device 2 inside will be arranged on the piezoelectric vibrator support 7 rises to the high position that Fig. 2 A is ordered, during rotation, steel ball 6 drops to the low level that B is ordered among Fig. 2 under the effect of kinetic energy and potential energy, clash into overhang 4 simultaneously, and the free end of overhang 4 is subjected to impact force generation transverse vibration.The piezoelectric chip 5 that is positioned on overhang 4 upper and lower surfaces produces transverse strain with overhang 4 vibrations, piezoelectric chip 5 continuous stretching vibrations, when it is extruded or stretches, produce electric energy, catch these electrical energy transfer and promptly finish the conversion regime of wind energy for the micropower element to electric energy.Simultaneously, base 10 is connected with the two ends of running shaft 9 by bearing A12, bearing B13, has guaranteed the stability in the device busy process.
The utility model is based on the wind energy converter of piezoelectric material, the structure that adopts wind mill equipment, piezoelectric device to be connected with the wind energy conversion support, utilize the piezoelectric vibrator device that wind energy transformation is electric energy, improved the conversion efficiency of wind energy, and can reduce the cost of wind-power electricity generation.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820222696U CN201372898Y (en) | 2008-12-01 | 2008-12-01 | A wind energy conversion device based on piezoelectric materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820222696U CN201372898Y (en) | 2008-12-01 | 2008-12-01 | A wind energy conversion device based on piezoelectric materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201372898Y true CN201372898Y (en) | 2009-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200820222696U Expired - Fee Related CN201372898Y (en) | 2008-12-01 | 2008-12-01 | A wind energy conversion device based on piezoelectric materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201372898Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170246A (en) * | 2011-04-01 | 2011-08-31 | 重庆大学 | Vibrating type miniature wind driven generator with flexible beam structure |
| CN102777327A (en) * | 2012-08-07 | 2012-11-14 | 南京航空航天大学 | Breeze power generation device based on piezoelectric effects |
| CN102946211A (en) * | 2012-11-21 | 2013-02-27 | 南京航空航天大学 | Voltage-adjustable piezoelectric power generation device |
| CN106602929A (en) * | 2016-12-22 | 2017-04-26 | 苏州市职业大学 | Disc-type piezoelectric power generation device |
| CN108199620A (en) * | 2018-01-26 | 2018-06-22 | 扬州大学 | A kind of wind power piezoelectric generation device based on multilayer cantilever beam |
| CN112134489A (en) * | 2020-09-04 | 2020-12-25 | 厦门大学 | An eccentrically mounted rotary piezoelectric vibration energy harvesting device |
| CN115450831A (en) * | 2022-09-29 | 2022-12-09 | 陕西科技大学 | An impact ball type wind piezoelectric power generation device and method |
-
2008
- 2008-12-01 CN CN200820222696U patent/CN201372898Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170246A (en) * | 2011-04-01 | 2011-08-31 | 重庆大学 | Vibrating type miniature wind driven generator with flexible beam structure |
| CN102170246B (en) * | 2011-04-01 | 2013-07-31 | 重庆大学 | Vibrating type miniature wind driven generator with flexible beam structure |
| CN102777327A (en) * | 2012-08-07 | 2012-11-14 | 南京航空航天大学 | Breeze power generation device based on piezoelectric effects |
| CN102777327B (en) * | 2012-08-07 | 2014-12-10 | 南京航空航天大学 | Breeze power generation device based on piezoelectric effects |
| CN102946211A (en) * | 2012-11-21 | 2013-02-27 | 南京航空航天大学 | Voltage-adjustable piezoelectric power generation device |
| CN106602929A (en) * | 2016-12-22 | 2017-04-26 | 苏州市职业大学 | Disc-type piezoelectric power generation device |
| CN108199620A (en) * | 2018-01-26 | 2018-06-22 | 扬州大学 | A kind of wind power piezoelectric generation device based on multilayer cantilever beam |
| CN112134489A (en) * | 2020-09-04 | 2020-12-25 | 厦门大学 | An eccentrically mounted rotary piezoelectric vibration energy harvesting device |
| CN112134489B (en) * | 2020-09-04 | 2021-09-24 | 厦门大学 | An eccentrically mounted rotary piezoelectric vibration energy harvesting device |
| CN115450831A (en) * | 2022-09-29 | 2022-12-09 | 陕西科技大学 | An impact ball type wind piezoelectric power generation device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20121201 |