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Piezoelectric energy harvester device with a stopper structure, system, and methods of use and making

  • US 9,479,089 B2
  • Filed: 12/31/2013
  • Issued: 10/25/2016
  • Est. Priority Date: 03/13/2013
  • Status: Expired due to Fees
First Claim
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1. An energy harvester device comprising:

  • an elongate resonator beam comprising a piezoelectric material, said resonator beam extending between first and second ends;

    a base connected to the resonator beam at the first end with the second end being freely extending from the base as a cantilever;

    a mass attached to the second end of the resonator beam;

    a package surrounding at least a portion of the second end of the resonator beam, wherein the package defines interior walls which in their totality comprise no more than two horizontal interior surfaces defining first and second horizontal planes and no more than two vertical interior surfaces defining first and second vertical planes; and

    a stopper connected to the mass and/or the second end of the resonator beam, wherein the stopper is configured to prevent contact between the second end of the resonator beam and the package.

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