Dual-purpose piezoelectric generator

Abstract

The invention relates to a dual-purpose piezoelectric generator, and belongs to the technical field of new energy. Two cross beams are arranged on the outer side of the right wall of a body cavity ofa main body, wherein lug plates at the two ends of an inertia body are connected with the cross beams of the main body through reeds, and a main magnet is mounted on the inertia body through an adjusting block; an end cover is mounted at the upper end of the body cavity, the two ends of a guide pin are arranged in a counter bore of the end cover and a counter bore of the bottom wall of the body cavity respectively, and the guide pin is sequentially sleeved with a balance spring, an exciter and a buffer spring from bottom to top; two or two sets of cams are symmetrically arranged on the left side face and the right side face of the exciter, and an auxiliary magnet is mounted on a protruding block in the center of the right side face of the exciter; the cam surface is composed of a bottom face, an inclined face and a top face which are sequentially connected; seat plates with inclined mounting faces are mounted on the left wall and the right wall of the body cavity, piezoelectric vibrators are mounted on the mounting faces and are of cantilever beam structures formed by bonding base plates and piezoelectric pieces, ejection blocks are mounted at the free ends of the piezoelectric vibrators and abut against the cam surface, and when no interaction force exists between the main magnet and the auxiliary magnet, the ejection blocks make contact with the middle points of the inclinedfaces of the cams.

Description

technical field [0001] The invention belongs to the technical field of new energy, and in particular relates to a dual-purpose piezoelectric generator for recycling vibration and fluid kinetic energy. Background technique [0002] In recent years, with the maturity of wireless sensor network technology and its popularization in the fields of environmental monitoring, health monitoring of buildings and bridges, industry, military and public safety, micro-sized piezoelectric sensors that provide continuous energy supply The research of generators has been widely concerned by scholars at home and abroad. The micro-sized piezoelectric generators that have been proposed so far can be successfully used for the effective recovery of vibration energy, wind energy, water current energy and ocean wave energy. However, these existing piezoelectric generators have a single function, that is, they can only be used for energy recovery in one environment, and their reliability and environ...

AI Technical Summary

Problems solved by technology

However, these existing piezoelectric generators have a single function, that is, they can usually only be used to recover energy from one environment, and their reliability and environmental adaptability are very limited, which is not conducive to the popularization and application of piezoelectric power generation technology.

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