Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2011-08-23
2011-08-23
Leung, Quyen (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S180000, C310S156450, C310S168000, C310S216104, C310S216099, C310S185000, C310S269000, C310S06800R, C310S06800R, C318S696000, C318S701000
Reexamination Certificate
active
08004141
ABSTRACT:
The present invention relates to a two-phase brushless DC motor which can increase a pemerance coefficient of a rotor to the maximum to thereby improve efficiency and starting feature of the motor, and to reduce torque ripple and noise thereof. The brushless motor of the present invention includes a two-phase winding stator having 4×n winding poles and auxiliary poles provided between the winding poles, and a rotor constituted by 6×n permanent magnet rotating poles having divided angle. Auxiliary poles between the stator poles can be provided. The two-phase brushless motor of the present invention can be driven by a control device for the two-phase motor which can transform electric power and rectify electronically.
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Kim John K
Knobbe Martens Olson & Bear LLP
Leung Quyen
SNTech Inc.
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