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Linear vibrator having a trembler with a magnet and a weight

  • US 8,878,401 B2
  • Filed: 09/23/2011
  • Issued: 11/04/2014
  • Est. Priority Date: 11/10/2010
  • Status: Active Grant
First Claim
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1. A linear vibrator, comprising:

  • a bottom case including a floor plate;

    a stator including a circuit substrate arranged on the floor plate and a coil block disposed on the circuit substrate and electrically connected to the circuit substrate;

    a trembler including a magnet facing the coil block and a weight coupled to the magnet;

    an upper case coupled to the bottom case to accommodate the stator and the trembler; and

    first and second elastic units extended from the floor plate of the bottom case respectively, the first and second elastic units being arranged perpendicular to the floor plate;

    wherein the trembler is coupled to the first and the second elastic units respectively;

    wherein each of the first and second elastic units includes fixtures extended from the floor plate of the bottom case, and a zigzagged leaf spring unit connected at both distal ends to each fixture;

    wherein the leaf spring unit includes a plurality of spring units mutually and vertical1y arranged in parallel relative to the floor plate, each connected in series; and

    wherein a center spring unit in the plurality of spring units is coupled to a lateral surface of the trembler.

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