ROTATIONAL ELECTRIC MACHINE

摘要

PROBLEM TO BE SOLVED: To improve the usability of a rotational electric machine by making the outside characteristic of a motor equal to the inside characteristic of the motor. SOLUTION: The rotational electric machine includes: a cylindrical stator 30 having windings 34; an inner rotor 40 coaxially positioned on the inside of the stator 30 and having a magnet 43 on the outer peripheral surface; and an outer rotor 20 coaxially positioned on the outside of the stator 30 and having the magnet 23 in the inner peripheral surface. The inner rotor 40 and the outer rotor 20 are constituted so that the amount of a magnetic flux passing through the magnet 43 of the inner rotor 40 is made equal to that of a magnetic flux passing through the magnet 23 of the outer rotor 20. COPYRIGHT: (C)2009,JPO&INPIT