SUPPORTING DEVICE OF FIELD COIL

摘要

PURPOSE:To prevent a layer insulator from notching at cutting by providing a field coil face supporting surface in a cooling fan. CONSTITUTION:A field pole 1 is formed of a core 2 and a pole piece 3 for preventing a field coil 4 from removing due to a centrifugal force. The coil 4 is formed of a winding turn 4a and a winding turn 4b with a cooling fan in a structure for forming the winding with the fin at several turns of the wind ing. The winding portion 7 to become a bonding surface with a field coil supporting device is provided at the winding turn 4b, and the cutting surface is spaced at an interval Aw from the turn 4a. Thus, since it can prevent a layer insulator from notching at cutting, the insulator can be held preferably in molding.