| 摘要 |
PURPOSE: A horizontal linear vibrator is provided to improve productivity by installing a mass assist member for controlling a resonant frequency near a permanent magnet or coil. CONSTITUTION: A case(120) has a preset space inside. A coil(140) is arranged in the inner space of the case. A mass(131) is moved by an electromagnetic force between a permanent magnet(150) and a coil. A mass assist member(310) is arranged near the coil to control a resonant frequency. A spring(132) is arranged between the case and a moving unit. |
