| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric motor which can be readily manufactured, while making the eddy current loss generated in a rotor reduced. SOLUTION: The electric motor 1A includes a rotor 4 including a rotor shaft 2; a high electrical conductivity body 6A, which is arranged at the external peripheral face of the rotor shaft 2 and has conductivity higher than that of the rotor shaft 2 and a permanent magnet 3, arranged outside the high-conductivity body 6A in the radial direction of the rotor shaft 2; and an armature 5, including an armature core 9 which has a cylindrical shape and in which a plurality of slots 8 are arranged on the internal peripheral face which the rotor 4A penetrates so as to extend in the axial P direction and an armature winding 10 wound around the plurality of slots 8. The high electrical conductivity body 6A is divided into the circumferential direction of the rotor shaft 2. COPYRIGHT: (C)2011,JPO&INPIT |
