Patent ID: 8546990

Claim:
A permanent magnet synchronous rotating electric machine comprising: a rotor comprising: a first hole; a second hole provided on an opposite side with respect to a center line extending along a radial direction of the rotor; a first magnet provided in the first hole and extending along a first longitudinal axis inclined at a first acute angle with respect to the center line; and a second magnet provided in the second hole and extending along a second longitudinal axis inclined at a second acute angle with respect to the center line, the second acute angle being smaller than the first acute angle and being formed opposite to the first acute angle with respect to the center line, an outer circumferential distance between a first radially outer end of the first magnet and a second radially outer end of the second magnet being greater than an inner circumferential distance between a first radially inner end of the first magnet and a second radially inner end of the second magnet, wherein the rotor includes a first pole pitch line and a second pole pitch line each extending along the radial direction forming a single magnetic pole formed by the first and second magnets, the center line being provided between the first and second pole pitch lines, wherein the center line bisects an angle between the first and second pole pitch lines into equal angular amounts, and wherein the first magnet is provided entirely between the first pole pitch line and the center line and the second magnet is provided entirely between the second pole pitch line and the center line; and a stator including a stator core and a stator winding provided to the stator core, the stator having a displacement point of first and second magnetic poles to be generated by a current passing through the stator winding, the displacement point being provided on an inner peripheral surface facing an outer peripheral surface of the rotor via a gap, the single magnetic pole formed by the first and second magnets being different from the first magnetic pole of the stator on the inner peripheral surface on a first side of the center line when the displacement point is provided substantially on the center line of the rotor, the single magnetic pole formed by the first and second magnets being the same as the second magnetic pole of the stator on the inner peripheral surface on a second side of the center line when the displacement point is provided substantially on the center line of the rotor, the second side being provided on an opposite side of the first side with respect to the center line in the circumferential direction.