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Piezoelectric power generator for feeding emergency power

  • US 8,680,750 B2
  • Filed: 03/29/2011
  • Issued: 03/25/2014
  • Est. Priority Date: 12/23/2010
  • Status: Active Grant
First Claim
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1. A piezoelectric power generator for feeding emergency power, comprising:

  • a frame;

    a fixing unit comprising a left fixing body coupled to a left part of the frame and a right fixing body coupled to a right part of the frame;

    a first piezoelectric body attached to a right part of the left fixing body;

    a second piezoelectric body attached to a left part of the right fixing body;

    a vibration unit attached between the first piezoelectric body and the second piezoelectric body and configured to vibrate transversly to a direction extending between the right and left parts of the frame, wherein the vibration unit includes a Printed Circuit Board (PCB);

    first and second masses respectively disposed inside an upper part and a lower part of the frame and configured to move vertically in the upper part and the lower part of the frame;

    a first elastic unit connected between the first mass and a top end of the vibration unit; and

    a second elastic unit connected between the second mass and a bottom end of the vibration unit.

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