Piezoelectric power generation device and power generation method thereof

Abstract

The invention discloses a piezoelectric power generation device and a power generation method thereof, and belongs to the field of wind power generation and hydroelectric generation. The piezoelectric power generation device comprises a turbine rotor assembly, a spring ball assembly and a piezoelectric vibrator assembly, wherein the turbine rotor assembly comprises a box cover, a box body, a left shaft, a right shaft, a turbine blade and a main shaft frame, the left shaft and the right shaft are fixedly connected with the box cover and the box body respectively, the turbine blade is fixed to the left end of the left shaft, and the left shaft and the right shaft are arranged on the main shaft frame; the spring ball assembly comprises an installation cylinder, a spring and an elastic ball, the installation cylinder is installed on the box body, one end of the spring is fixedly arranged in the installation cylinder, the other end of the spring is in a free state, the elastic ball is arranged at the end, in the free state, of the spring, the end, extending into the box body, of the installation cylinder is open, the end, outside of the box body, of the installation cylinder is sealed, and the end, in the free state, of the spring is located at the open end of the installation cylinder; the piezoelectric vibrator assembly comprises an elastic piece and a piezoelectric material attached to the elastic piece in an adhesive mode, one end of the elastic piece is embedded in the outer cylindrical face of the box body, the other end of the elastic piece is free, and the elastic piece makes contact with the elastic piece after moving in the axis direction of the installation cylinder.

Description

Technical field: [0001] The invention relates to a piezoelectric power generation device and a power generation method thereof, belonging to the fields of wind power generation and hydropower generation. Background technique: [0002] Using natural wind energy and water energy to generate electricity, the self-powered system for various outdoor facilities is in line with today's energy-saving, environmental protection, and low-carbon development trends. It is used in industrial monitoring, intelligent transportation, smart grid, mine safety, environmental monitoring, safe home, Healthcare and other fields have broad application prospects. [0003] US11 / 252903, a small wind-driven generator, was designed and manufactured by Priya of the United States using piezoelectric devices. It can generate electricity under the wind power of 8-16 kilometers per hour. The generator's paddles are attached to a cam that oscillates a series of bimorphs arranged in a circle around an axis t...

AI Technical Summary

Problems solved by technology

This solution has two disadvantages: one is that the piezoelectric bimorph collides with the cam and rubs against it every time it rotates, thus causing wear and tear, resulting in energy loss and reducing the service life

The main disadvantage of this solution is that when the vehicle passes by continuously and strong wind is generated, the sign will rotate at high speed, so that the steel ball will move close to the piezoelectric conversion element, and the piezoelectric element will not receive alternating pressure. can't generate electricity

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