LINEAR MOTOR

摘要

PROBLEM TO BE SOLVED: To provide a linear motor in which utilization efficiency of magnetic field is high, heating of a yoke is suppressed and a movable coil can produce a stabilized thrust while reducing the size. SOLUTION: A center yoke is provided in a side yoke having U-shaped cross-section and inserted into its own cavity section and a coil movable in the longitudinal direction is provided in the linear motor. On the inner surface of the upper and lower segments of the side yoke, magnets are provided while facing the same polarity each other and alternating the polarity in the longitudinal direction and at least a plurality of movable coils and hollow coils are coupled.