STEPPING ELECTRIC MOTOR Russian patent published in 2008 - IPC H02K37/02 

FIELD: electric engineering, stepping electric motors with reactive rotors, possible use in industrial transporting or instrumental electro-mechanical systems.

SUBSTANCE: electric motor contains body, stator packet with multi-phased winding and poles, which have teeth. The teeth on adjacent poles are shifted relatively to each other for 1/m of tooth point, where m - number of phases. Magnetic conductor of rotor is made with teeth. On the shaft, coaxial hollow cylinders of rotor are positioned, which alternate with hollow cylinders of stator, which consist of ferromagnetic and non-magnetic elements, positioned along the axis of rotation. Rotor cylinders are mechanically connected to magnetic conductor of rotor through non-magnetic disk. Cylinders of stator are attached to body by means of non-magnetic bushing. Teeth of poles and ferromagnetic elements of stator cylinders, and also cylinders of magnetic conductor and ferromagnetic elements of rotor cylinders have their identical angular positions. Due to introduction of additional hollow cylinders of rotor and stator, resulting electric motor has high mass and size characteristics.

EFFECT: improved mass and size characteristics.

7 dwg