ELECTRIC MOTOR AND AIR CONDITIONER

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The rotor of this electric motor comprises a rotor magnet 15. The rotor magnet 15 comprises a yoke 1 and a resin magnet section 16 that is arranged on the exterior of the yoke 1 and that is formed from a resin containing a rare-earth magnetic powder. A plurality of grooves 11 and a plurality of recessed sections 10 arranged in an alternating manner in the circumferential direction are included on the end surface 3b of the yoke 1. The grooves 11 extend radially from the inner circumferential surface 4b to the outer circumferential surface 4a of the yoke 1. The resin magnet section 16 comprises a plurality of rib sections 20 arranged individually within the plurality of grooves 11. The lengths of the rib sections 20 in the radial direction are smaller than the lengths of the grooves 11 in the radial direction.