Patent ID: 8098877

Claim:
A vibration speaker for a portable electronic device, wherein the vibration speaker comprises: a case; a loudspeaker member for generating a sound, the loudspeaker member being positioned inside the case and comprising a frame, a magnet, a voice coil and a membrane, wherein the voice coil is positioned to generate a movement of the membrane alternately in two opposite directions when an electric current is applied to the voice coil and a magnetic field is formed by interaction between the voice coil and the magnet; a vibration coil for generating a vibration, the vibration coil being positioned inside the case and further being positioned to generate a movement of the entire loudspeaker member alternately in the mentioned two opposite directions when an electric current is applied to the vibration coil and a magnetic field is formed by interaction between the vibration coil and the magnet, and at least one elastic member being positioned to elastically support between the loudspeaker member and the case when the entire loudspeaker member is moved alternately in the mentioned directions; wherein the magnet is attached to a bottom side of the frame, an outside edge part of the membrane is affixed to a top part of the frame, and the voice coil is attached to the membrane; wherein the at least one elastic member comprises a plurality of elastic members, and wherein, the frame is elastically mounted to the case by means of said plurality of elastic members; wherein the frame is elastically mounted to both side walls and a bottom side of the case by means of said plurality of elastic members.