CN201372898Y - Wind energy converting device based on piezoelectric material - Google Patents

Wind energy converting device based on piezoelectric material Download PDF

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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
Authority
CN
China
Prior art keywords
piezoelectric
wind energy
wind
overhang
piezoelectric vibrator
Prior art date
Application number
CN200820222696U
Other languages
Chinese (zh)
Inventor
穆安乐
张存娥
Original Assignee
西安理工大学
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 西安理工大学 filed Critical 西安理工大学
Priority to CN200820222696U priority Critical patent/CN201372898Y/en
Application granted granted Critical
Publication of CN201372898Y publication Critical patent/CN201372898Y/en

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

Abstract

The utility model discloses a wind energy converting device based on piezoelectric material, which comprises a windmill device and a piezoelectric device, wherein a wind wheel rotor of the windmill device is provided with blades, one end of the windmill device is provided with a rotating shaft, the outer part of the piezoelectric device is encapsulated with a ring-shaped piezoelectric device cover, the internal cross section of the piezoelectric device is a circular cavity, the rotating shaft passes through the internal cavity of the piezoelectric device to be connected with a wind energy converting bracket, fan-shaped piezoelectric vibrator brackets which are not connected are uniformly fixed around the rotating shaft in the cavity of the piezoelectric device, steel balls are arranged on the outer sides of the piezoelectric vibrator brackets, gaps are left between the piezoelectric vibrator brackets and the piezoelectric device cover so as to make the steel balls roll exactly in the gaps, a cantilever beam is arranged between two adjacent piezoelectric vibrator brackets, the length of the cantilever beam is larger than the radial length of the piezoelectric vibrator bracket, and the upper surface and the lower surface of the cantilever beam are stuck with piezoelectric wafers. The wind energy converting device based on piezoelectric material has the advantages of high conversion efficiency and low cost.

Description

A kind of wind energy converter based on piezoelectric material
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)

1. wind energy converter based on piezoelectric material, it is characterized in that, 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), the outer enclosure of described piezoelectric device (2) has circular piezoelectric device enclosing cover (8), the inner cross section of piezoelectric device (2) is a circular cavity, described running shaft (9) passes piezoelectric device (2) internal cavities and is connected with wind energy transformation support (3), in the cavity of piezoelectric device (2), evenly be fixed with the fan-shaped piezoelectric vibrator support (7) that is not connected around running shaft (9), steel ball (6) is placed on piezoelectric vibrator support (7) outside, leave the gap between piezoelectric vibrator support (7) and the piezoelectric device enclosing cover (8), make steel ball (6) just can in this gap, roll, be provided with overhang (4) between adjacent two piezoelectric vibrator supports (7), the length of this overhang (4) is greater than the radial length of piezoelectric vibrator support (7), be pasted with piezoelectric chip (5) on the upper and lower surface of overhang (4), the width of piezoelectric chip (5) equals the width of overhang (4).
2. the wind energy converter based on piezoelectric material according to claim 1, it is characterized in that, described wind energy conversion support (3) bottom is provided with base (10), base (10) is connected with the two ends of running shaft (9) by bearing A (12), bearing B (13), and the top of bearing A (12), bearing B (13) is fixed with loam cake A (11), loam cake B (14) respectively.
3. the wind energy converter based on piezoelectric material according to claim 1 is characterized in that, described piezoelectric chip (5) adopts polyvinylidene fluoride PVDF piezoelectric material.
4. the wind energy converter based on piezoelectric material according to claim 1 is characterized in that, described piezoelectric vibrator support (7) and overhang (4) adopt the acrylonitrile-butadiene-styrene copolymer ABS plastic.
CN200820222696U 2008-12-01 2008-12-01 Wind energy converting device based on piezoelectric material CN201372898Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200820222696U CN201372898Y (en) 2008-12-01 2008-12-01 Wind energy converting device based on piezoelectric material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200820222696U CN201372898Y (en) 2008-12-01 2008-12-01 Wind energy converting device based on piezoelectric material

Publications (1)

Publication Number Publication Date
CN201372898Y true CN201372898Y (en) 2009-12-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN200820222696U CN201372898Y (en) 2008-12-01 2008-12-01 Wind energy converting device based on piezoelectric material

Country Status (1)

Country Link
CN (1) CN201372898Y (en)

Cited By (5)

* Cited by examiner, † Cited by third party
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

Cited By (7)

* Cited by examiner, † Cited by third party
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

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20091230

Termination date: 20121201

C17 Cessation of patent right