Direct current motor

Details Direct current motor Direct current motor

1993-10-15

1995-02-21

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 40MM, 310254, H02K 502, H02K 112

Patent

active

053919548

ABSTRACT:
In a stationary coil type direct current motor, the motor comprises a case supported by a shaft, and the case is made of magnetic material being high saturation magnetic flux density and high magnetic permeability, whereby magnetic saturation and iron loss can be reduced. The motor is further provided with a plurality of coils mounted on the inner circumference of the case, and the shaft on which a magnet is secured. The magnet is arranged so as to be spaced a predetermined gap from the coils. Furthermore, the case may be a less iron loss material constructed of two layers. A plurality of coils ace mounted on the inner circumference of the case, and the magnet secured to the shaft is spaced a predetermined gap from the coils.

REFERENCES:
patent: 4130769 (1978-12-01), Karube
patent: 4403401 (1983-09-01), Rosenberry
patent: 4665331 (1987-05-01), Sudo et al.
patent: 4733118 (1988-03-01), Mihalko
patent: 4908347 (1990-03-01), Denk
patent: 4954739 (1990-09-01), Schultz et al.
patent: 5243248 (1993-09-01), Benford et al.

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