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Electricity generator

  • US 9,927,836 B2
  • Filed: 03/07/2013
  • Issued: 03/27/2018
  • Est. Priority Date: 09/25/2012
  • Status: Active Grant
First Claim
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1. A manually powered generator for charging a mobile device, comprising:

  • a first magnet array, the first magnet array comprising a plurality of magnets arrayed in an annular formation on a first surface;

    a second magnet array, the second magnet array comprising a plurality of magnets arrayed in an annular formation on a second surface positioned opposite the first surface;

    a torque input member; and

    a rotor disposed between the first and second magnet arrays, the rotor comprising a printed circuit board including a plurality of planar layers, each of the plurality of planar layers comprising a serpentine trace of conductive material extending radially inwardly and outwardly in a continuous manner between a respective inner perimeter and a respective outer perimeter in a serpentine shape so as to form a series of interconnected peaks and valleys around a circumference of the respective planar layer, the respective inner perimeters of each serpentine trace being spaced radially outwardly from a central opening defined in the rotor, the serpentine traces of material being interconnected between the planar layers by one or more vias to form a single conductive pathway, the one or more vias being located adjacent the inner perimeters of the respective serpentine traces, the plurality of planar layers including a top layer and a bottom layer, the top and bottom layers including respective terminals surrounding the central opening and electrically connected to the serpentine traces of the top and bottom layers;

    wherein the generator is configured to be incorporated into a handheld case that can be coupled to the mobile device.

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