| 摘要 |
PURPOSE:To obtain a core movable type linear vibration actuator which has a simple structure and a high efficiency by disposing two stationary cores at the prescribed interval through a spacer, and mounting a movable core to reciprocate at the inside. CONSTITUTION:Two stationary cores 1, 3 in which exciting coils are wound are disposed axially through a spacer 5. Frames 5, 9 are disposed at the end sides of the cores 1, 3, and the frames, the stationary core and the spacer are integrated by a clamping bolt 11. A movable core 17 fixed to the shaft are inserted to the bores of the cores 1, 3, and reciprocatedly supported by bearings 13, 15 provided at the frame. Thus, when currents are alternately flowed to the exciting coils of the cores 1, 3, the core 17 can be reciprocated. |
