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Device and method for harvesting energy

  • US 9,350,274 B2
  • Filed: 03/06/2014
  • Issued: 05/24/2016
  • Est. Priority Date: 02/07/2014
  • Status: Active Grant
First Claim
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1. A device for harvesting energy comprising:

  • a housing;

    a mechanical spring engaged with said housing between a static and dynamic state;

    a first magnet engaged with said mechanical spring;

    a grid engaged with said housing;

    a composite structure comprising a fixed magnet and a piezoelectric material;

    said composite structure is engaged with said grid and in communication with said first magnet;

    said first magnet and said fixed magnet apply a force upon said piezoelectric material when said mechanical spring is in said static state to produce a base voltage by a piezoelectric mode; and

    excitation of said mechanical spring causes said piezoelectric material to generate a first alternating voltage output comprising a first peak voltage by a piezoelectric mode greater than said base voltage by a piezoelectric mode.

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