Patent ID: 8729763

Claim:
A rotor making up a motor, the rotor comprising: a rotor core with two slots bored therein, the two slots being spaced with each other and in arrangement of a substantially V-letter shape, each slot being a rectangle having short sides and long sides in planar view and having slot faces corresponding to the long sides including a slot face on a center side of the rotor core and a slot face on a stator side facing the slot face on the center side; at least one of a protrusion and a concave groove disposed at at least one of the slot face on the center side of the rotor core and the slot face on the stator side facing the slot face on the center side; a magnet to be contained in each slot, the magnet including at least one of a concave groove and a protrusion to be engaged with the protrusion or the concave groove of the slot face; an engagement part so as to let the slot and the magnet engage at their concave groove and protrusion, the engagement part aligning and fixing the magnet in the rotor to form one magnetic pole with the magnets in arrangement of a substantially V-letter shape; and a flux barrier in contact with the magnet and disposed between a lateral side face of the magnet and a slot face, the flux barrier having a same thickness as a thickness of the magnet and having a width not less than the thickness of the magnet and smaller than a length in a longitudinal direction of the magnet perpendicular to the thickness, wherein both of the two magnets in arrangement of a substantially V-letter shape each include the engagement part brought from a center position of the magnet closer to the other magnet.