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Equivalent stress cantilever lever medium voltage piezoelectric power generation component

A piezoelectric power generation, isostress technology, applied in electrical components, piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, etc., can solve problems such as rupture and damage, achieve long service life, environmental The effect of no pollution and large power capacity

Inactive Publication Date: 2018-03-13
SUZHOU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a new type of medium-voltage piezoelectric power generation assembly with isostress cantilever lever. Stepping directly on the piezoelectric ceramic sheet can easily lead to problems such as cracking and damage

Method used

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  • Equivalent stress cantilever lever medium voltage piezoelectric power generation component
  • Equivalent stress cantilever lever medium voltage piezoelectric power generation component
  • Equivalent stress cantilever lever medium voltage piezoelectric power generation component

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Embodiment Construction

[0026] to combine figure 1 and figure 2 As shown, the equal-stress cantilever lever medium-voltage piezoelectric power generation assembly includes a piezoelectric power generation board, an auxiliary support component and an elastic lever. The square upper piezoelectric ceramic sheet 6 and the lower piezoelectric ceramic sheet 8 are polarized along the thickness direction and the polarization direction is opposite. The material of the copper plate 7 is beryllium bronze, and the length for 120 mm , with a width of 46 mm , with a thickness of 0.3 mm , the piezoelectric ceramic sheet material is PZT-5, the length is 100 mm , with a width of 42 mm , with a thickness of 0.2 mm .

[0027] The elastic lever includes an elastic rod 2, an active pressure block 4 arranged on the upper side of the elastic rod 2 close to the long bolt 3 and a driven pressure block 5 arranged at the lower end of the elastic rod 2, the active pressure block 4 and the driven pressure block 5 Conne...

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Abstract

The invention discloses an equal-stress cantilever lever intermediate-pressure type piezoelectric power generation module. The piezoelectric power generation module comprises a piezoelectric power generation plate, an elastic lever and an auxiliary support part, wherein the piezoelectric power generation plate comprises a copper pole plate, a square upper piezoelectric ceramic plate and a square lower piezoelectric ceramic plate, the upper piezoelectric ceramic plate and the lower piezoelectric ceramic plate are pasted on the upper surface and the lower surface of the copper pole plate, the elastic lever comprises an elastic rod, a driving press block and a driven press block, the driving press block is arranged on the upper side of the elastic rod and is near to a bending position, the driven press block is arranged at the end part of the lower side of the elastic rod, the auxiliary support part comprises a concave camber surface bottom plate and a long bolt, the concave camber surface bottom plate, the copper pole plate and the elastic rod are sequentially arranged from bottom to top, and the long bolt passes through a linkage hole of each part to make all parts connected into a whole. The piezoelectric power generation assembly has the advantages of simplicity in structure, high power capacity, low cost, high piezoelectric conversion efficiency, no discomfortableness such as footing lost during stepping, no pollution, long service lifetime and the like, the whole machine is easy to fabricate and assemble, and the piezoelectric ceramic is difficult to be damaged and broken.

Description

technical field [0001] The invention relates to an energy recovery device utilizing the piezoelectric effect of a piezoelectric ceramic material, in particular to an equal-stress cantilever lever medium-voltage piezoelectric power generation assembly. 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/18
CPCH02N2/18
Inventor 钱蜜李艳殷振杨鑫铭黄钰文苏磊徐建胡清柱李霖榕范逸伦
Owner SUZHOU UNIV OF SCI & TECH
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