ROTOR FOR MAGNET-EMBEDDED ROTARY MACHINE

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PROBLEM TO BE SOLVED : To provide an IPM motor with high output. SOLUTION : A magnet-embedded rotary machine 1 comprises an armature with a coil 9 and a rotor 3 housing a plurality of permanent magnets 6 which are arranged in the coil 9 to face the armature with a gap therebetween so that magnetic fluxes interlink, in a slot 4 of a rotor core 5, and the armature and the rotor 3 can be relatively rotated with electric conduction to the coil 9. In the rotor 3, the permanent magnet 6 is Nd-based rare earth permanent magnet in a rectangular shape, and the ratio of the magnetization direction thickness in the permanent magnet occupied in the width of the permanent magnet magnetization direction in the slot 4 is secured at 90% or more. COPYRIGHT : (C)2013, JPO&INPIT