Permanent magnet type rotating electric machine

摘要

A permanent magnet type rotating electric machine is comprised of a rotor and a stator opposed to each other keeping a predetermined clearance therebetween. The rotor having a rotor core formed by silicon steel plates being laminated in an axial direction of the rotor core, slots being formed near an outer periphery of the rotor core in the rotor core so as to be open at the outer periphery of the rotor core, permanent magnets being inserted into the slots respectively, and a non-magnetic sleeve covering the outer periphery of the rotor core. Each of the slots has inclined side faces outwardly broadening the slot in a radial direction of the rotor core.
Each of the permanent magnets is fixed into the slot with a force applied from the sleeve so as to directing toward a center of the rotor core and an pressure applied from the inclined side faces of the slot.