Small light and thin large power high sensitivity high sound quality speaker and power drive and control circuit

Small light and thin large power high sensitivity high sound quality speaker and power drive and control circuit

  • CN 1,822,718 B
  • Filed: 12/29/2005
  • Issued: 10/16/2013
  • Est. Priority Date: 12/29/2005
  • Status: Active Grant
First Claim
Patent Images

1. a small light and thin large power high sensitivity high sound quality speaker, is characterized in that ferromagnetism alloy permanent magnet connects and fixedly vibrating membrane fixed support and hollow magnetic core;

  • The vibrating membrane fixed support connects and the fixed flat planar vibrating membrane, and the hollow magnetic core is put moving-coil, and vibrating membrane connects and fixing moving-coil, and moving-coil is alone, the serial or parallel connection use;

    The vibrating membrane fixed support doubles as outer magnetic pole;

    the hollow magnetic core is inside and outside and use;

    The double winding moving-coil is double-wire spaced, separate;

    The double winding moving-coil is divided into three of interior type, medium-sized and external forms, interior type double winding moving coil winding is fixed on moving-coil inside, medium-sized and external form double winding moving coil winding is for fixing respectively a single layer winding on the inside and outside wall of moving-coil, interior type double winding moving-coil is placed on hollow magnetic core inside, medium-sized double winding moving-coil be placed on by hollow magnetic core outer wall, formed in the space of magnetic pole, external form double winding moving-coil is placed in the space of the outer magnetic pole consisted of fixed support.

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