Patent ID: 8582800
Filing Date: 2013-11-12
Classification: H04R,Y10T

Abstract:
1. A speaker comprising: a frame; a diaphragm disposed in a top end of the frame; a bobbin disposed below the diaphragm; a voice coil wound around a bottom end of the bobbin; a magnetic member having a groove, the bottom end of the bobbin, around which the voice coil is wound, being inserted and reciprocated in a straight line upward and downward in the groove; a central pillar fixed to the magnetic member in a location at a center of the bobbin and extending parallel to the bobbin; and a damper which supports an inner circumferential surface of the bobbin and extends outwardly from the central pillar; wherein the damper comprises; an outer damper secured to the frame and supporting the outer circumferential surface of the bobbin; and an inner damper secured to the central pillar and supporting the inner circumferential surface of the bobbin, and wherein the outer damper and the inner damper are connected with each other by a bridge, and a fixing groove is formed on the bobbin in which the bridge is inserted, and the damper supports an outer circumferential surface of the bobbin from the frame so that the bobbin reciprocates in a straight line.