STEPPING MOTOR Russian patent published in 2015 - IPC H02K37/02 

FIELD: electricity.

SUBSTANCE: stepping motor comprises a body 1 and end shields 2, 3, whereat magnet cores 4, 5 are installed. At the magnet core 4 there are wedge-shaped teeth 6 with coils 7. The stator discs 8 are mounted at the stator bushing 9. The rotor discs 10 are mounted at the rotor bushing 11 fixed at the shaft 12 supported by bearings 13, 14. The stator and rotor discs have alternating ferromagnetic and non-magnetic elements. Ferromagnetic elements of the stator discs form six groups, and ferromagnetic elements in the groups are offset per one third of the teeth pitch. Ferromagnetic elements of the rotor discs are placed evenly in circumferential direction.

EFFECT: improved fabricability, operational speed and reliability at the movable platform.

7 dwg