Patent ID: 8520877

Claim:
A resonant structure for loudspeaker, comprising: a basket defining a front opening and having an annular magnet mounted to a bottom thereof; a voice coil suspended inside the annular magnet; a diaphragm having a suspended flange formed therearound for gluing to the front opening; at least one flexible suspension member being located behind and spaced from the diaphragm to connect to a rear opening of the basket; and an inner frame being glued at a front end to a rear wall surface of the diaphragm and at a central portion to the voice coil; and the inner frame including at least one wing member located behind the inner frame and glued to the at least one flexible suspension member; whereby, when the voice coil moves forward and backward with the aid of the inner frame, a best possible harmonic resonance between the diaphragm and the flexible suspension member can be obtained, the loudspeaker in a fully assembled state can have an effectively reduced overall height, and an enhanced bass response can be obtained to ensure upgraded sound quality.