Patent ID: 9113258
Filing Date: 2015-08-18
Classification: H04R

Abstract:
1. A speaker comprising: a holder forming a hollow space; a magnetic system received into the hollow space and defining a magnetic gap; an elastic plate assembled with the holder and defining an fixing portion forming a first through hole, the fixing portion defining a first surface and a second surface opposite to the first surface; a diaphragm having a dome part defining a center portion and a connecting portion surrounding the center portion connected with the first surface of the elastic plate, and an edge part separated from the dome part and defining a second through hole, an inner portion surrounding the second through hole and connected with the second surface of the elastic plate, an outer portion having a diameter that is larger than that of the inner portion, and an arcuate portion connecting the inner and outer portions and depressed toward the magnetic system; and a coil defining an end suspended in the magnetic gap and an another end directly connected with the center portion of the dome part through the first and second through holes for providing a driving force onto the diaphragm rapidly.