Alternating buckling type wind piezoelectric energy collector

A piezoelectric energy and collector technology, which is applied in wind turbine combinations, wind turbines, wind turbines at right angles to the wind direction, etc., can solve the problems of mechanical energy difficulties, lack of vibration sources, etc., achieve easy operation, improve electromechanical conversion efficiency, Efficient effect

Inactive Publication Date: 2018-05-04
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the absence of a stable and efficient vibration source in the natural environ

Method used

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  • Alternating buckling type wind piezoelectric energy collector
  • Alternating buckling type wind piezoelectric energy collector
  • Alternating buckling type wind piezoelectric energy collector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with specific embodiments.

[0034] Such as Figure 1 to Figure 8 As shown, the alternating buckling wind piezoelectric energy harvester, the device includes the rotating shaft 2 of the wind rotating part 1, which is installed on the frame part 4 through the bearing a3 and the bearing b5, and the rotating shaft 2 drives the eight-pronged piezoelectric cantilever beam 9. The prism fixture 10 rotates, and the piezoelectric cantilever beam 9 drives the piezoelectric buckling beam 14 to undergo alternating buckling deformation. The electrode surfaces of each piezoelectric layer are connected by wires to the energy storage and conversion device. The wind rotating part 1 includes a wind cup 6 , a cross arm beam 7 and a triangular prism clamp 8 . The wind cup is welded on the cross-arm beam 7, the cross-arm beam 7 is welded on the triangular prism fixture 8, and the cross-arm beam 7 is evenly array...

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Abstract

The invention discloses an alternating buckling type wind piezoelectric energy collector. The alternating buckling type wind piezoelectric energy collector comprises a wind rotating part, a piezoelectric power generation part and a frame body part. The wind rotating part starts to rotate after being blown by the wind and drives the rotation of a cylinder rotating shaft installed at the center of aregular octagonal shell; the wind-driven rotational motion of the rotating shaft drives the rotation of the piezoelectric cantilever beam, and the interaction force of attraction and repulsion of a permanent magnet drives a piezoelectric buckling beam to perform alternating buckling deformation to the inner side or the outer side, so that the piezoelectric cantilever beam and the piezoelectric buckling beam work together to greatly increase the power generation efficiency. The alternating buckling type wind piezoelectric energy collector can be used for power sources of some wireless sensorsand can also be used as a charging device for portable electronic devices.

Description

technical field [0001] The invention relates to a device for generating electricity by utilizing wind energy, which can effectively collect mechanical energy of wind force in the surrounding environment to generate electricity, and belongs to the field of piezoelectric electricity generation and renewable and environmentally friendly new energy. Background technique [0002] In recent years, with the popularity of portable electronic devices and the vigorous development of wireless sensor networks, the issue of powering wireless devices has attracted widespread attention. Wind energy in nature is a renewable clean energy, which has the advantages of environmental protection and low cost. The positive piezoelectric effect of piezoelectric materials can convert the energy of vibration in the surrounding environment into electrical energy, so as to realize the self-supply of wireless electronic devices. A feasible energy supply method. [0003] The piezoelectric energy harvest...

Claims

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Application Information

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IPC IPC(8): H02N2/18F03D3/06F03D9/25
CPCY02E10/74H02N2/185F03D3/062F03D9/25
Inventor 姚明辉彭乐伦刘鹏飞马立
Owner BEIJING UNIV OF TECH
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