PERMANENT MAGNET MOTOR AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To suppress deformation of coils at the time of magnetization and in turn to improve magnetizing efficiency in a permanent magnet motor comprising 3P slots when the number of magnetic poles is P and having three-phase windings in the slots with the pitch of three slots. SOLUTION: One-phase winding at the inside circumference where three-phase winding are wound with the pitch of three-slots is inserted into the outermost circumferential side, and the terminal of the winding is connected as a pole and the other two-phase terminals as another pole. A rotor 4 is assembled in a stator 1 and a magnetizing current is caused to flow for magnetization. Thus, not only deformation of the coil end can be suppressed but also the magnetizing efficiency can be improved.