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COMPOSITE SPEAKER

  • US 20120263338A1
  • Filed: 06/04/2010
  • Published: 10/18/2012
  • Est. Priority Date: 12/21/2009
  • Status: Active Grant
First Claim
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1. A composite speaker comprising:

  • a plurality of magnets disposed at predetermined intervals;

    a yoke that forms a magnetic circuit having a magnetic gap with respect to the magnets;

    a voice coil disposed in the gap between the magnets and the yoke so as to interlink with the magnetic circuit;

    a diaphragm with the voice coil fixed to one face thereof;

    a frame to which peripheral edge portions of the diaphragm are directly fixed and that houses the magnets and the yoke;

    a speaker base plate fixed to the frame at a side thereof opposite to a side supporting the diaphragm; and

    an elastic member formed from an elastic material selected from the group consisting of a thermoplastic elastomer, a vulcanized rubber and a soft resin, or formed from a foamed body of an elastic material selected therefrom, and inserted between a base face of the yoke and the speaker base plate;

    wherein sound is generated from both the diaphragm and the speaker base plate.

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