Screw-type piezoelectric type energy collector and preparation method thereof

An energy harvester, spiral technology, applied in piezoelectric devices/electrostrictive devices, piezoelectric/electrostrictive/magnetostrictive devices, piezoelectric effect/electrostrictive or magnetostrictive motors, etc., It can solve the problems of insufficient low-frequency and wide-band, and achieve the effects of easy mass production, energy harvesting, and increased frequency bandwidth

Inactive Publication Date: 2014-04-23
PEKING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the energy harvesters mentioned above do not fully meet the needs of low frequency and wide frequency band.

Method used

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  • Screw-type piezoelectric type energy collector and preparation method thereof
  • Screw-type piezoelectric type energy collector and preparation method thereof
  • Screw-type piezoelectric type energy collector and preparation method thereof

Examples

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[0032] The present invention will be further described below in conjunction with examples. The scope of the present invention is not limited by these embodiments, and the scope of the present invention is set forth in the claims.

[0033] The specific steps of the spiral-type low-frequency broadband piezoelectric energy harvester provided by the present invention and the preparation method thereof are described below with reference to FIGS. 1-4.

[0034] Referring to Figure 1, Figure 1(a) is a top view of the spiral energy harvester of the present invention. Figure 1(b) is a schematic front view of the spiral piezoelectric energy harvester of the present invention. The energy harvester structure mainly includes: PVDF piezoelectric film, metal mass, and silicon mass. Reference figure 2 , figure 2 This is a scanning electron micrograph of the laser-cut PVDF film cantilever beam of the present invention. Reference image 3 , image 3 It is a microscope effect diagram of electroplated

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Abstract

The invention discloses a screw-type piezoelectric type energy collector and a preparation method thereof. The collector comprises a piezoelectric thin film, a metal electrode, an adhesive layer, metal mass blocks and silicon mass blocks. The screw-type piezoelectric type energy collector provided by the invention has the characteristics of low frequency and wide frequency band; the preparation method for the screw-type piezoelectric type energy collector is compatible with the conventional MEMS (micro-electro-mechanical system) technology, and batch production is facilitated.

Description

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Claims

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Application Information

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Owner PEKING UNIV
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