CPC H10N 30/306 (2023.02) [H02N 2/181 (2013.01); H10N 30/802 (2023.02)] | 20 Claims |
1. An energy-harvester power-unit, comprising:
a structural block having a first face and an opposing second face that is substantially parallel to the first face, the structural block having a cavity formed therethrough, the structural block further having a plurality of openings formed therethrough from the first face to the second face, each of the plurality of openings having conically-shaped elements formed thereon on the first face and the second face of the structural block;
a first contactor arm mechanically coupled to the first face of the structural block and a second contactor arm mechanically coupled the second face of the structural block on a first end of each of the respective contactor arms, each of the contactor arms spanning over at least a portion of the cavity;
a force-contact bar mechanically coupled to each of the contactor arms at a second end of the respective contactor arm, the force-contact bars positioned to be substantially over the cavity;
a first elastic beam mechanically coupled substantially parallel to the first face and a second elastic beam mechanically coupled substantially parallel to the second face, both of the elastic beams positioned substantially over the cavity of the structural block; the elastic beams being mechanically coupled to respective ones of the contactor arms;
a piezoelectric element positioned within the cavity and mechanically coupled to the structural block, a longitudinal axis of the piezoelectric element being substantially perpendicular to a longitudinal axis of the force-contact bars; and
a pair of conically-shaped compression elements configured to be matingly coupled to each of the plurality of openings to compress the piezoelectric element.
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