Electric motor with asymmetric design for improved operation

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10218234
APP PUB NO 20180159392A1
SERIAL NO

15367351

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An electric motor in which at least one of the rotor and the stator has an asymmetric design is disclosed. The electric motor is divided into a number of segments, where each segment has an equal number of windings and an equal number of poles. The physical construction of each pole within a segment is identical and the number of turns of each winding within a segment is identical. The asymmetry is formed by varying the physical construction of the either the rotor or the stator within one segment from the corresponding construction of the rotor or stator in the other segments. The asymmetries are designed to improve one or more operating characteristics such as sensorless performance, torque ripple, or cogging torque in the motor.

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Patent Owner(s)

Patent OwnerAddress
ROCKWELL AUTOMATION TECHNOLOGIES INC1 ALLEN-BRADLEY DRIVE MAYFIELD HEIGHTS OH 44124

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Liu, Jingbo Grafton, US 32 221
Sizov, Gennadi Shorewood, US 4 3
Sun, Xikai Shanghai, CN 11 2
Wei, Kun Shanghai, CN 10 12

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