| 摘要 |
A linear motor excellent in insulation between armature coils, easy to assemble, very small in thrust ripple, comprising a secondary side supporter attached with a secondary side consisting of a plurality of magnetic field poles, and an armature element supporter facing the secondary side via a clearance and provided with an armature element (4) having a plurality of concentrate-wound armature coils (6), the secondary side and the armature element (4) being disposed facing each other and in parallel in the advancing direction, wherein field poles in the secondary side are disposed in the advancing direction of a mover with adjacent poles being unlike every Pm pitches, and a plurality of armature coils (6) are disposed in an array in the advancing direction of the mover every Pc pitches, the coil pitch Pc=5/3xPm.
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