ROTATING ELECTRICAL MACHINE

摘要

A rotating electrical machine for realizing the longer life of a belt by suppressing an increase in the inertia of a rotator, and realizing high output by increasing field electromotive force is achieved. In the rotating electrical machine, first and second magnetic induction members (30, 35) are provided on first and second valley portions (25, 26) in such a manner that the members are fit into first and second holding grooves (27, 28) extendedly provided in an axis direction in opposed portions of outer diameter sides of the inner wall surfaces of the first and second valley portions (25, 26). First and second eternal magnets (32, 37) magnetized and oriented in a direction opposite to that of a magnetic field (41) generated by a field magnetic coil (14) are fit to and held at fitting grooves of the first and second magnetic induction members (30, 35) in such a manner that the magnets are opposed to the inner periphery surfaces of the leading end sides of second and first nail-like magnetic pole portions (24, 20) with a predetermined gap therebetween.