Electric motor, particularly an electronically commutated...

Details Electric motor, particularly an electronically commutated... Electric motor, particularly an electronically commutated...

2006-02-21

2006-02-21

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S156480, C310S216006, C310S254100

Reexamination Certificate

active

07002275

ABSTRACT:
An electric motor, particularly an electronically commutated direct current motor, has a stator and a rotor. The stator and the rotor are arranged coaxially to a longitudinal axis of the electric motor. The stator features a plurality of electrical stator poles and a plurality of phase windings. The rotor features a permanent magnet with a least one magnetic pole pair which is dedicated to the phase windings. The phase windings and/or the permanent magnet are divided into several axial sections in the direction of the longitudinal axis of the electric motor and these sections are staggered around the longitudinal axis of the electric motor with respect to each other. Angular positions of the individual phases are offset with respect to each other is in such a way that torque ripple can be reduced and torque gaps can be prevented.

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Cover page of the published PCT application (WO 03/030332).
German International Search Report dated Apr., 2003.

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