| 摘要 |
PROBLEM TO BE SOLVED: To restrain stator deformation in a linear motor due to a thermal stress at the time of adhering and curing magnetic steel sheets constituting a stator. SOLUTION: In the linear motor, 11 denotes a mover to which AC windings of U, V, W phase are wound, and 30 denotes a stator. The stator 30 is constituted of laminating and adhering the plurality of magnetic steel sheets. In the stator 30, a stator salient pole 10a is arranged on the surface opposed to the mover, and a salient pole 10b having a same shape as the stator salient pole 10a is arranged also on a back surface on the opposite side. In the stator of the linear motor, salient poles having an approximately same shape are arranged, on the surface opposed to the mover and the back surface on the opposite side, respectively, so that the thermal stress is loaded uniformly on both sides, even if a temperature is raised at the time of adhering and curing the magnetic steel sheets. COPYRIGHT: (C)2010,JPO&INPIT |
