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piezoelectric generator

A generator, piezoelectric technology, applied in the direction of generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, electrical components, etc. The effect of electricity

Active Publication Date: 2019-04-05
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a piezoelectric generator, which can solve the problem of insufficient power generation of piezoelectric generators in the prior art

Method used

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Embodiment Construction

[0047] Figure 2 to Figure 6 It is an exploded schematic view of the operating state of the piezoelectric generator according to an embodiment of the present invention. Please refer to figure 2 , the piezoelectric generator 100 of this embodiment includes a base 110 , a reed 120 and a piezoelectric element 130 . The base 110 has a rigid portion 112 and an elastic portion 114 . The elasticity of the rigid part 112 is smaller than that of the elastic part 114 . The reed 120 has a first surface 122 and a second surface 124 opposite to each other and a first side 126 and a second side 128 opposite to each other. The first side 126 is fixed to the rigid portion 112 , and the second side 128 is fixed to the elastic portion 114 . The reed 120 is arc-shaped. The piezoelectric element 130 is attached to the reed 120 and adapted to deform together with the reed 120 . The first surface 122 is convex when the reed 120 is not pressed. When the reed 120 is pressed so that the first ...

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Abstract

The invention discloses a piezoelectric generator, which includes a base, a reed and a piezoelectric element. The base has a rigid part and an elastic part. The elasticity of the rigid part is smaller than the elasticity of the elastic part. The reed has an opposite first surface and a second surface, and an opposite first side and a second side. The first side is fixed to the rigid part, and the second side is fixed to the elastic part. The reed is curved. The piezoelectric element is attached to the reed and is adapted to deform together with the reed. The first surface of the reed is convex when it is not pressed. When the reed is pressed and the first surface changes from a convex surface to a concave surface, an elastic restoring force to restore the reed will act on the reed.

Description

technical field [0001] The present invention relates to a generator, and in particular to a piezoelectric generator. Background technique [0002] Piezoelectric materials have the property of accumulating electric charges when they are strained by external stress, so that they can convert mechanical energy into electrical energy. However, the electrical energy output can only be generated when the input mechanical energy changes, so the energy conversion efficiency of the piezoelectric material is related to the magnitude and change speed of the external mechanical energy. As far as piezoelectric materials are applied to generators, in order to avoid excessive mechanical energy loss resulting in poor final energy conversion efficiency, the existing technology integrates mechanical energy input devices and piezoelectric power generation units into a single unit, such as the US patent application US 2010 / 244629 A1. Please refer to figure 1 , the existing piezoelectric gener...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/18
CPCH02N2/18
Inventor 林家欣
Owner IND TECH RES INST