| 摘要 |
PURPOSE:To generate uniformity of distributing magnetic flux of a permanent magnet by preventing a single pole from being magnetized astride divided parts of the magnet in the peripheral surface of a rotor, in a permanent magnet field electric motor wherein the rotor provided with the divided type permanent magnet is magnetized after building the electric motor. CONSTITUTION:By providing an armature, having a mark corresponding to a magnetic pole position generated by exciting an armature winding in a tooth point or in the vicinity thereof of an armature core, and a permanent magnet rotor, having a mark B12 corresponding to a magnetic pole position of a permanent magnet 1 in the vicinity of an external diameter in an axial directional end part of an end plate 3 or a protecting pipe 4, a permanent magnet field type electric motor, generating uniformity of distributing magnetic flux of the permanent magnet 1, is obtained. |
