Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1986-04-17
1988-12-27
Budd, Mark O.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 68R, H02K 122
Patent
active
047942932
ABSTRACT:
A direct current electric motor is described, which substantially comprises a permanent magnet having a plurality of N-magnetic poles and a plurality of S-magnetic poles, the N and S-magnetic poles being alternately arranged adjacent to each other, each defining a magnetic range of its own; phase coil means including a first phase coil and a second phase coil, each being composed of a plurality of groups of conductors, the conductors being extended substantially in parallel with each other, the first and second coils being displaced by a half range of a single magnetic pole of the permanent magnet, such that each group of conductors of the first phase coil and each group of conductors of the second phase coil may be alternately disposed adjacent to each other, one being disposed in one half of the magnetic range and the other being disposed in the other half thereof; and magnetism detector means including a first magnetism detector and a second magnetism detector, the first magnetism detector being connected to an end of the first phase coil and the second magnetism detector being connected to an end of the second phase coil, the first and second magnetism detectors and the first and second phase coils forming an armature to be positioned opposite to the permanent magnet movable with respect to the armature with a predetermined amount of air gap provided therebetween.
REFERENCES:
patent: 4093897 (1978-06-01), Fujita
patent: 4220879 (1980-09-01), Hoshimi
patent: 4242608 (1980-12-01), Ishigaki et al.
patent: 4283644 (1981-08-01), Kondo et al.
patent: 4340833 (1982-07-01), Sudo et al.
patent: 4604540 (1986-08-01), Fukami
Fujisaki Kiyonori
Kato Heihachi
Kobayashi Toshio
Budd Mark O.
Ziems Robert F.
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