A Modular Buried Piezoelectric Power Generation Device

Abstract

The invention discloses a modular buried piezoelectric power generation device which comprises a box body, a transmission device and an equal stress piezoelectric power generation device, wherein the box body consists of a base body and a box body upper cover plate, supporting limiting strips, a transmission rod supporting seat, springs and connection pieces which are mounted on the base body; the transmission device consists of a pedal and transmission rods connected onto the pedal; the equal stress piezoelectric power generation device consists of a base plate and an upper press plate, a limiting connection piece and a piezoelectric power generation unit which are mounted on the base plate; the piezoelectric power generation unit consists of an elastic rod, driving pressing blocks which are arranged on the upper side of the elastic rod and at a position close to the connection pieces, driven pressing blocks arranged at the end part of the lower side of the elastic rod, a concave cambered surface bottom plate, the connection pieces, a protective plate, a copper polar plate and an upper piezoelectric ceramic piece and a lower piezoelectric ceramic piece which are adhered to the upper surface and the lower surface of the copper polar plate. The piezoelectric power generation device has the advantages of simple structure, high power capacity, high piezoelectric conversion efficiency, difficulty in damage and breakage of piezoelectric ceramic, no feeling of discomfort such as the feeling of missing a step during treading, and the like.

Description

technical field [0001] The invention relates to an energy recovery device utilizing the positive piezoelectric effect of a piezoelectric ceramic material, in particular to a modular buried piezoelectric power generation device. Background technique [0002] The device that utilizes piezoelectric ceramic positive piezoelectric effect to generate electricity has become a focus of attention of researchers all over the world because of its advantages of environmental protection and energy saving, simple structure, no electromagnetic interference, easy implementation, and low cost. There are many piezoelectric power generation devices that use the kinetic energy of the human body to be studied at home and abroad. The patent document with the publication number CN201956927U discloses a piezoelectric power generation device that uses the human body to frequently step on it. The device uses the human body to step on the spring lever mechanism to form a spring deformation. potential ...

AI Technical Summary

Problems solved by technology

There are many piezoelectric power generation devices that use the kinetic energy of the human body to be studied at home and abroad. The patent document with the publication number CN201956927U discloses a piezoelectric power generation device that uses the human body to frequently step on it. The device uses the human body to step on the spring lever mechanism to form a spring deformation. potential energy, and then release the spring deformation potential energy to generate piezoelectric power by knocking the piezoelectric material. The device has a simple structure, low cost, and concentrated power generation. Finally, the percussion force formed on the piezoelectric ceramic material is very small, which affects the power generation conversion efficiency of the piezoelectric ceramic sheet. In addition, the stroke of the human body is greater than 2mm, and there is discomfort such as stepping on the air.

[0003] In order to generate electricity by using the energy of the human body stepping on the steps in front of the building, the patent document with the publication number CN102064734A discloses a piezoelectric power generation device for the steps in front of the building. Electric ceramics are trampled to generate electric energy and collect energy. This device has the advantages of simple structure, low cost, and concentrated power generation. However, this device also has certain shortcomings: the piezoelectric conversion efficiency is low, and the human body directly impacts the piezoelectric ceramics after stepping on the carpet. sheet, it is easy to cause brittle fracture and damage to the piezoelectric ceramic sheet

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