FIELD: transport.
SUBSTANCE: elevator drive comprises pulley to drive elevator gearing and induction motor. Induction motor comprises stator with at least one winding to induce magnetic field of revolving motor and rotor comprising at least one permanent magnet. Note that rotor is connected with pulley to transmit torque. Said permanent magnet is longer along motor axis than stator core. Rotor consists of multiple permanent magnets and separate magnetic sectors arranged alternating along outer circumference perpendicular to motor axis to concentrate magnetic flux in axial and/or radial direction.
EFFECT: higher reliability.
10 cl, 3 dwg
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