Permanent magnet rotating electric machine

A compressor configured in such a manner as to be driven by a permanent magnet rotating electric machine, said permanent magnet rotating electric machine comprising

• a stator having a plurality of teeth formed in a stator core, concentrated wound armature windings wound around said plurality of teeth,
• a rotor having a plurality of holes formed in a rotor core for accommodating permanent magnets and rare earth permanent magnets inserted into said plurality of holes,
• wherein said permanent magnets are each shaped or arranged like a convex “V” or “U” with respect to said shaft of said rotor, and
• wherein a ratio of width W1 of an interpole core between said permanent magnets to width Xg of a gap between said stator core and said rotor core is set in such a manner as to satisfy the following condition:
• 0.8≦W1/Xg≦13.2.

An air conditioner having a compressor configured in such a manner as to be driven by a permanent magnet rotating electric machine, said permanent magnet rotating electric machine comprising

• a stator having a plurality of teeth formed in a stator core, concentrated wound armature windings wound around said plurality of teeth,
• a rotor having a plurality of holes formed in a rotor core for accommodating permanent magnets and rare earth permanent magnets inserted into said plurality of holes,
• wherein said permanent magnets are each shaped or arranged like a convex “V” or “U” with respect to said shaft of said rotor, and
• wherein a ratio of width W1 of an interpole core between said permanent magnets to width Xg of a gap between said stator core and said rotor core is set in such a manner as to satisfy the following condition:
• 0.8≦W1/Xg≦13.2.