PROCESS OF ASSEMBLY OF STEPPING ELECTRIC MOTOR Russian patent published in 1995 - IPC

FIELD: electric engineering. SUBSTANCE: rotor, cores with coils of control winding having pole pieces and at least one permanent magnet with pole piece too are installed in frame. End of rotor shaft of electric motor is let through hole in pole piece of permanent magnet. Pole pieces of cores of control winding are placed between butts of two parts of frame. Permanent magnets are put through holes of one of frame part. One of ends of rotor shaft is placed in hole of other part of frame. Then pole piece is mounted on free butts of permanent magnets through which hole the other end of rotor shaft is let through. EFFECT: simplified process of assembly of electric motor. 2 cl, 67 dwg