Vertical-vibration horizontal-swinging type power generation device of low frequency large amplitude piezoelectric cantilever beam

A power generation device, a technology with large amplitude, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., to achieve the effect of low-frequency vibration energy recovery and high reliability

Active Publication Date: 2012-07-18
ZHEJIANG NORMAL UNIVERSITY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a low-frequency large-amplitude piezoelectric cantilever beam power generation device of longitudinal vibration and lateral swing type to solve the problem that the existing piezoelectric vibration power generation

Method used

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  • Vertical-vibration horizontal-swinging type power generation device of low frequency large amplitude piezoelectric cantilever beam
  • Vertical-vibration horizontal-swinging type power generation device of low frequency large amplitude piezoelectric cantilever beam
  • Vertical-vibration horizontal-swinging type power generation device of low frequency large amplitude piezoelectric cantilever beam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Figure 1, figure 2 , Figure 3 and Figure 4 As shown, the housing 2 is mounted on the base 1 through screw connection, the inner wall of the housing 2 is evenly bonded with a first group of magnets 3 and a second group of magnets 4, the first group of magnets 3 and the second group of magnets 4 not at the same height; the base 1 is installed with a pin shaft 5 through screws, and the other end of the pin shaft 5 is crimped with the top of the housing 2; A spring 6, an inertia block 7 and a second spring 8; an annular groove 701 is respectively provided at both ends of the inertia block 7, and a straight groove 702 for installing a piezoelectric vibrator 9 is also provided on the inertia block 7; The electric vibrator 9 is formed by bonding a metal substrate 901 and a piezoelectric wafer 902. One end of the metal substrate 901 is bonded with a magnet 11, and the other end is inserted into the straight groove 702 of the inertial block 7, and fixed by a retaining spring 1...

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Abstract

The invention relates to a vertical-vibration horizontal-swinging type power generation device of a low frequency large amplitude piezoelectric cantilever beam, which belongs to the technical field of new energy and power generation. A casing is installed on a base through screws, and a first group of magnets and a second group of magnets are evenly bonded to the inner wall of the casing. A first spring, an inertia block and a second spring are sequentially sleeved on a pin roll from top to bottom. One end of a piezoelectric vibrator is connected with a magnet in bonding mode, and the other end of the piezoelectric vibrator is inserted in a direct groove of the inertia block. The first group of magnets and the second group of magnets and the magnet installed on the piezoelectric vibrator are installed with the same poles close to each other. The power generation device has the advantages of utilizing the environment to vibrate vertically to enable the piezoelectric vibrator of the cantilever beam to swing horizontally in the horizontal level, being capable of achieving low frequency large amplitude vibration energy recycle and being high in reliability.

Description

technical field [0001] The invention belongs to the technical field of new energy and power generation, and in particular relates to a longitudinal vibration and sway type piezoelectric cantilever beam power generation device, which is used for energy recovery of low-frequency and large-amplitude longitudinal vibration. Background technique [0002] In order to meet the self-power supply requirements of micro-power electronic products and micro-miniature remote sensing and embedded monitoring systems, and to avoid the pollution of the environment by a large number of waste batteries, research on micro-miniature power generation devices based on the principles of electromagnetic, electrostatic, thermoelectric, capacitive and piezoelectric has been carried out. Become a frontier hotspot at home and abroad. All kinds of power generation devices have their own advantages and applicable fields. The advantages of piezoelectric vibration power generation devices are simple stru...

Claims

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Application Information

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IPC IPC(8): H02N2/18
Inventor 王淑云阚君武孙明礼程光明曾平
Owner ZHEJIANG NORMAL UNIVERSITY
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