| 摘要 |
PURPOSE:To equalize the magnetic attracting forces of total poles by providing a magnetic flux branching path for branching the magnetic fluxes of poles for providing many magnetic fluxes crossing an armature to adjacent pole. CONSTITUTION:Poles 2 are formed of a laminated core 3, core retainers 4 for retaining the core 3 from both laminating sides, and a coil 5. Engaging units 3a, 4a provided under the core 3 and the retainer 4 are inserted into the slots 8 of a yoke 7, and secured by a wedge 9. An insulator 11 is provided around the coil 5, and the coil 5 and the pole 2' are retained via the insulator 11 by a coil retainer 12. Further, the insulator 11 is interposed between the sides of the coils 5, 5' to provide a magnetic flux branch 20. Thus, the magnetic distribution of the all poles can be equalized to suppress the vibration caused by the unbalance of the attracting force. |
