Segment coil, stator with the segment coil and method for producing the segment coil

摘要

The object is to provide segment coils arranged in slots of an annular core, which allow efficient connection of adjacent segment coils and effective prevention of deterioration of a thin insulating layer, in particular in a coil end section, a stator with segment coils and a method of manufacturing a segment coil. The segment coils (12) arranged in slit portions (11c) of a toroidal core (11) each have a straight portion (C) and a pair of coil end portions (E1, E2) and have a tip end of a coil end portion (E2) of the pair Coil end portions (E1, E2) as a tip end portion for connection (S) having a connection surface (S1) for connection to another segment coil (12). The tip end portion for connection (S) has the connection surface (S1), which is viewed in the axial direction of the ring core (11) parallel to the radial direction of the ring core (11).