Patent ID: 8774447
Filing Date: 2014-07-08
Classification: H04R

Abstract:
1. A crossover double speaker, which includes a yoke of a roughly U shape having a bottom, a cylinder portion integrally formed on the outer circumference of the bottom, and a flange extending outward from the top end of the cylinder portion; a first speaker unit having a first magnet disposed in a first speaker space provided by the bottom and the cylinder portion of the yoke; and a second speaker unit having a second magnet disposed in a second speaker space provided below the yoke, wherein a sound generated from the second speaker unit is outputted in the direction of the first speaker unit, the crossover double speaker further comprising: a cover which is integrally formed on the outer circumference of the flange of the yoke and extends downward from the flange of the yoke at a predetermined interval radially so as to surround the cylinder portion of the yoke that provides the first speaker space therein; a cap which is disposed opposite to the yoke for providing the first speaker space, and has a cap hole formed in the center thereof; and a frame which is disposed below the cover so as to provide the second speaker space, wherein the first speaker unit comprises a first magnetic plate attached to the top face of the first magnet, a first vibration plate in which the outer circumference is fixed to the flange of the yoke by a first vibration plate holder, and a first voice coil of which one end is fixed to one face of the first vibration plate and the other end portion is inserted into a first air gap formed between the outer circumference of the first magnet and the cylinder portion, wherein the second speaker unit comprises a second magnetic plate attached on the bottom face of the second magnet, a second vibration plate fixed between the second magnetic plate and the top end of the frame by a second vibration plate holder, and a second voice coil of which one end is fixed to one face of the second vibration plate and the other portion is inserted into a second air gap formed between the cylinder portion of the yoke and the second magnet, wherein the yoke has sound release holes formed on the flange disposed between the cylinder portion and the second magnet to output the sound generated from the second speaker unit in the direction of the first speaker unit, and wherein a frame hole formed in the center of the frame, a yoke hole formed on the bottom of the yoke, a magnet hole formed in the center of the first magnet, a through-hole arrayed in a straight line concentrically by a magnetic plate hole formed in the center of the first magnetic plate are provided, and the through-hole and the cap hole of the cap are arrayed in a straight line concentrically, so that the sound generated from the second speaker unit is released through the frame hole, and the sound generated from the first speaker unit is released through the cap hole, and the sound generated from the first speaker unit and the second speaker unit and mixed through the through-hole are released through sound release holes.