Armature laminations

Details Armature laminations Armature laminations

2008-03-14

2010-12-28

Leung, Quyen (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S216069

Reexamination Certificate

active

07859164

ABSTRACT:
A DC motor, has a stator housing accommodating a permanent magnet stator; a rotor, rotatably mounted confronting the stator, the rotor having a shaft, a rotor core fitted to the shaft and having asymmetric laminations, a commutator fitted to the shaft adjacent one end of the rotor core, and windings wound about poles of the rotor core and terminated on the commutator; and brush gear comprising brushes in sliding contact with the commutator for transferring electrical power to the windings, wherein the cogging torque order for the motor is greater than twenty. Preferably, the cogging torque order is 28, 36 or 44.

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Zho et al., “Influence of Design Prameters on Cogging Torque in Permanent Magnet Machines” IEEE Transactions of Energy Conversion, 2000, vol. 15, No. 4.

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