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Piezoelectric energy harvester device having shape memory function and method thereof

A technology of piezoelectric energy harvesting and energy harvesting devices, which is applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, generators/motors, etc., can solve the requirements of working space, piezoelectric polymer PVDF has problems such as narrow working temperature range, and achieves the effect of wide working range and good biocompatibility

Active Publication Date: 2018-05-25
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of piezoelectric energy harvesting device has a fixed structure and requires a working space
And the operating temperature range of piezoelectric polymer PVDF is narrow

Method used

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  • Piezoelectric energy harvester device having shape memory function and method thereof
  • Piezoelectric energy harvester device having shape memory function and method thereof
  • Piezoelectric energy harvester device having shape memory function and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The working process of the piezoelectric energy harvester with shape memory function will be described in detail below in conjunction with the accompanying drawings.

[0018] like Figure 1~3 As shown, the piezoelectric energy harvester device with shape memory function includes a first clamp 1, a rechargeable battery pack 2, a first piezoelectric energy harvester 3, a second piezoelectric energy harvester 4, and a second clamp 5; The first piezoelectric energy harvester 3 and the second piezoelectric energy harvester 4 are bonded by glue, and the first clamp 1, the first piezoelectric energy harvester 3, the second piezoelectric energy harvester 4, and the second clamp 5 are They are stacked and arranged sequentially from top to bottom, and connected by bolts and nuts, and the rechargeable battery pack 2 is connected with the first clamp 1 by screws.

[0019] The first piezoelectric energy harvester 3 and the second piezoelectric energy harvester 4 are made of poly-L-...

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PUM

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Abstract

The invention discloses a piezoelectric energy harvester device having a shape memory function and a method thereof. The piezoelectric energy harvester device comprises a first clamp, a rechargeable battery pack, a first piezoelectric energy harvester, a second piezoelectric energy harvester and a second clamp. The first piezoelectric energy harvester and the second piezoelectric energy harvesterare bonded through glue; the first clamp, the first piezoelectric energy harvester, the second piezoelectric energy harvester and the second clamp are connected in sequence, and are connected throughbolts and nuts; and the rechargeable battery pack is connected with the first clamp through a screw. The piezoelectric energy harvester device has a shape memory effect and a piezoelectric effect, isunfolded into a cantilever structure during working state and converts the external vibration energy into electric energy for storage, and is folded into a compact structure during non-working state.The piezoelectric energy harvester device can meet application occasions where an aircraft and the like has requirements for space.

Description

technical field [0001] The invention relates to a vibration energy collection device, in particular to a piezoelectric energy harvester device with a shape memory function and a method thereof. Background technique [0002] The vibration energy harvesting device can convert the vibration energy in nature into electrical energy, which can replace the power supply and supply microelectronic products such as sensors to work, and has the characteristics of green and environmental protection. [0003] Most vibration energy harvesting devices are based on the piezoelectric effect. Commonly used piezoelectric materials include piezoelectric ceramics, piezoelectric polymers, etc., such as PZT, PVDF, etc., and these materials require high-voltage electric field polarization to have piezoelectric effect. This type of piezoelectric energy harvesting device has a fixed structure and requires a working space. And the operating temperature range of piezoelectric polymer PVDF is narrow. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/18
CPCH02N2/186
Inventor 李会雨候旭王杰
Owner ZHEJIANG UNIV
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