High-efficiency, low-noise electronically commutated motor havin

Details High-efficiency, low-noise electronically commutated motor havin High-efficiency, low-noise electronically commutated motor havin

1993-09-20

1995-11-07

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 40MM, 310 49R, H02K 3700, H02P 506

Patent

active

054650194

ABSTRACT:
A single-phase ECM in a radial flux configuration has parking magnets situated on both ends of its rotor and parking lamination extensions situated on its stator, such that the parking magnets and parking lamination extensions interact to provide sufficient starting torque from rest at predetermined parking positions. As a result, the parking and torque production functions in the ECM are separated; and the ECM has good starting capability while operating at relatively high torque production and efficiency with minimal torque pulsations and noise.

REFERENCES:
patent: 2120109 (1938-06-01), Merrill
patent: 3579161 (1971-05-01), Kremzner et al.
patent: 4095130 (1978-06-01), Oshima et al.
patent: 4214181 (1980-07-01), Nagahori
patent: 4369385 (1983-01-01), Malkin et al.
patent: 4404484 (1983-09-01), Gillott
patent: 4455516 (1987-06-01), Furusho

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