Patent ID: 7561704
Filing Date: 2009-07-14
Classification: H04R

Abstract:
1. A speaker comprising: a basket, said basket defining a receiving open chamber; an exciter positioned in a bottom side inside said receiving open chamber of said basket, said exciter having an annular positioning portion at the center thereof; and a diaphragm fastened to said basket and suspending in said receiving open chamber in front of said exciter, said diaphragm comprising an elastically deformable annular suspension and a cone fastened to the inner diameter of said annular suspension, said cone having a center through hole coupled to said annular positioning portion of said exciter; wherein a locating plate is coupled to said exciter to hold down a center area of said cone, said locating plate having an upright tubular hub, said upright tubular hub defining therein an inside annular locating groove coupled to said annular positioning portion of said exciter, an outer bearing portion spaced around said upright tubular hub, said outer bearing portion having a beveled outer bearing surface pressed on a surface of said cone around said center through hole, and a connecting portion connected between said upright tubular hub and said outer bearing portion and spaced from said cone at a distance.