To reduce a number of part items and attain improvement of workability, by treating a coil end wire of a stator coil and a lead wire for the outside use, by a substrate provided on a coil end of the stator coil.

In a coil end 2 of a stator coil wound to a stator core 1, a substrate 3, internally wrapping a pattern formed by soft copper integrally resin molded with a supporter 6, is mounted, in this substrate, a terminal 4 is provided, to be connected to a coil end wire, while a power source lead wire, safety protection device 5 and a speed detection element 8 are connected to a connector 10 provided in the substrate 3, to be connected to the coil end wire through the pattern.