VIBRATION MOTOR BUILT-IN SPEAKER

摘要

PURPOSE: A vibration motor built-in speaker is provided to generate an oscillation by using a rotational oscillation of a speaker having the eccentricity without an up-and-down oscillation of the speaker. CONSTITUTION: A speaker unit(100) outputs a calling sound. A vibration motor unit(200) rotates the speaker unit(100) having the eccentricity to generate an oscillation of the speaker unit(100). A protector(20) is provided with a plurality of a sound outlet hole. A diaphragm(22) generates sound by using the oscillation of sound pressure. A voice coil(23) is mounted on a lower end of the diaphragm(22) and vibrated by an applied voice current. A top plate(24) is mounted within the voice coil(23). Magnets(28,34) are provided on a lower end of the top plate(24) and generate a predetermined magnetic field. The magnets(28,34) are fixed to a yoke(30) without being wounded. A frame(32) is provided on an external circumference of the yoke(30). The diaphragm(22) is fixed to the frame(32).