| 摘要 |
PROBLEM TO BE SOLVED: To improve operating efficiency of a linear vibration electric machine of which the movable core reciprocates (vibrates). SOLUTION: Permanent magnets 14b are disposed on one end side and the other end side in a displacement direction of the movable core 14 with a non-magnetic spacer 14a sandwiched. Therefore, it is possible to restrain a number of fluxes from closing in the movable core 14. A number of fluxes can be passed (flowed) between a teeth part 15 and the movable core 14, therefore, a magnet suction force generated between the teeth part 15 and the movable core 14 can be increased when the linear vibration electric machine is used as an actuator. The thrust generated in the movable core 14 can be increased, and the operating efficiency of an actuator 13 can be improved. COPYRIGHT: (C)2004,JPO
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