| 摘要 |
PURPOSE: A vibration and sound generating device is provided to prevent distortion and twist of the vibration by making an amplitude corresponding to a vibration force of a spring be varied linearly. CONSTITUTION: A terminal plate(54) is attached on one side of a case(50). A magnetic generating part(52) generates a magnetic field and is embodied at a lower side of the case(50). The magnetic generating part(52) includes a magnet(70), a yoke(74) having a flange(76), and a plate(72). A voice coil(56) is placed at a top of the magnetic generating part(52) and generates electric field when a power is supplied. A vibration plate(58) generates a sound and is placed at a top of the voice coil(56). A spring(60) is placed at a lower side of the magnetic generating part(52) and transfers the vibration from the magnetic generating part(52) into the exterior. An upper cover and a lower cover are mounted at upper and lower sides of the case(50) respectively so as to protect each part.
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