Piezoelectric generator for exciting square column to vibrate in all wind directions

Abstract

The invention discloses a piezoelectric generator for exciting a square column to vibrate in all wind directions, and relates to the field of clean energy power generation. The piezoelectric generatoris composed of a square column rigid body, a regular pentagonal connecting piece, an array cantilever beam, a mass block, piezoelectric patches, a spring and a bottom plate. The piezoelectric generator is excited by any wind direction in the nature, the square column rigid body vibrates to further cause the spring to universally swing, the piezoelectric patches are pasted on the upper surface andthe lower surface of the cantilever beam around the square column rigid body in an array mode, the piezoelectric patches can be bent and deformed to different degrees due to the inertia effect of themass block at the tail end, and wind energy is converted into electric energy by utilizing the principle of the direct piezoelectric effect of a ceramic crystal. The piezoelectric generator makes full use of wind energy in all directions in nature, is used for overcoming the defect that a traditional generator can only generate power in a single wind direction, has the advantages of being simplein structure, high in reliability, low in cost and the like, and has wide application prospects in supplying power to low-power-consumption equipment in valley basins and other places where power transmission cables are difficult to erect.

Description

technical field [0001] The invention relates to the field of clean energy power generation, in particular to a piezoelectric generator that excites the vibration of a square column in all wind directions. Background technique [0002] There are three main types of working principles of wind-induced vibration generators: electrostatic, electromagnetic and piezoelectric. The electrostatic type needs an external power supply to work. Micro-electro-mechanical systems with magnetic field interference are difficult to use; piezoelectric types have wider application scenarios than electrostatic and electromagnetic types, and provide a relatively good solution for powering micro-electro-mechanical systems. [0003] So far, the traditional piezoelectric devices for wind power generation mainly focus on using a single wind direction in the natural wind field to generate electricity. However, the wind direction in nature is uncertain, and its speed and magnitude are difficult to accura...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the drawbacks of traditional wind power generation devices that only use a single wind direction to generate power, the purpose of the present invention is to provide a piezoelectric generator that excites the vibration of a square column in all wind directions, which can make full use of wind in all directions in nature to generate power, greatly improving the The utilization rate of wind energy is used to solve the power supply problem of low-power MEMS

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