| 摘要 |
PURPOSE:To enable to readily avoid a resonance of electromagnetic vibration force and a stator by forming a plurality of axial slots on the back surface of a cylindrical stator core and inserting a wedge to the prescribed slot, thereby altering the intrinsic vibration frequency of the stator. CONSTITUTION:A plurality of slits 1a, to which axial coil is inserted, are formed on the inner peripheral surface of a cylindrical stator core 1, a stator core 2 is inserted into the slot, and a wedge 4 for the coil is then inserted. A plurality of rectangular axial slots 1c are formed on the back surface 1b of the core, and a wedge 4 for adjusting the intrinsic vibration frequency is inserted into the slot 1c. In this manner, the intrinsic vibration frequency of the stator can be readily altered, and the mechanical resonance with electromagnetic vibration force can be readily avoided. |
