MOTOR WITH FREQUENCY GENERATOR

摘要

PURPOSE:To reduce the inertial mass of a rotor while simplifying an assembling mechanism by using a resin molded magnet as the rotor. CONSTITUTION:The rotary magnet unified rotor 7 consisting of the resin molded magnet is manufactured by unifying a rotary magnet for generating a magnetic field and a rotor with a convexo-concave shape functioning as one part of the frequency generator. The rotary magnet unified rotor 7 is magnetized so that N and S are continued alternately in the directions of rotation of a lower surface and an outer circumferential surface opposite to stator sections 4 each having drive winding sections and rotary detecting elements.