Patent ID: 7279821

Claim:
A motor comprising: a rotor; a rotor core included in the rotor, the rotor core being configured to be built, thereinto, with at least one first magnet; a pair of end plates, one of the pair of end plates being positioned at one axial end of the motor, the other one of the pair of end plates being positioned at the other axial end of the motor, and the pair of end plates holding the rotor core at axial ends of the rotor core; and at least one second magnet built into the pair of end plates and capable of producing magnetic fluxes in an axial direction of the motor; wherein the at least one second magnet is positioned so as to be in contact with a portion of the rotor core which is positioned at a radially outer side of the at least one first magnet, a number of poles of the at least one second magnet at each of the pair of end plates is equal to a number of poles of the at least one first magnet, and a polarity of the at least one second magnet at a side of the rotor core is identical to a polarity at an outer peripheral side of the at least one first magnet.