| 摘要 |
A voice coil motor. A guide bar connects to a fixed base. A coil connects to the fixed base and includes a first winding portion and a second winding portion. A current direction in the first winding portion is opposite that in the second winding portion. A support base movably fits on the guide bar. A magnetic member connects to the support base and includes a first magnetic pole and a second magnetic pole. A magnetization direction of the magnetic member parallels a moving direction of the support base and magnetic member and is perpendicular to a central axis of the coil. The first and second magnetic poles respectively oppose the first and second winding portions of the coil. The first and second magnetic poles respectively interact with the first and second winding portions to generate a first force and a second force, moving the support base and magnetic member.
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