Motor

Details Motor Motor

1988-05-18

1989-11-28

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 91, 310218, 310254, H02K 2126

Patent

active

048839965

ABSTRACT:
A motor having a rotary shaft, a coil wound on an iron core fixed to the rotary shaft, a yoke member, a magnetic flux producing member and commutator means has its yoke member constructed with yoke supporting portions serving as a magnetic path of magnetic flux and four magnetic poles having substantially arcuate shape. Each magnetic pole has a largest dimension of thickness at a center portion thereof and extends outwardly with gradually reduced thickness in accordance with the distance from the central portion. Ends of each magnetic pole respectively oppose corresponding ends of the adjacent magnetic poles with a slight distance therebetween, with the magnetic poles surrounding an outer periphery of the iron core. The magnetic flux producing member includes two rectangular parallelepiped blocks. The motor forms a shape approximate to a rectangle or a square by the two blocks and the four poles and supporting portions, wherein a dimension of thickness of the whole motor is set to a value near a dimension of an outer diameter of the iron core.

REFERENCES:
patent: 1074338 (1913-09-01), Ahlm
patent: 2496831 (1950-02-01), Berg
patent: 3296471 (1967-01-01), Cochardt
patent: 4141210 (1979-02-01), Flaig
patent: 4274026 (1981-06-01), Haydon et al.
patent: 4394594 (1983-07-01), Schmider et al.
patent: 4480203 (1984-10-01), Takura
patent: 4629924 (1986-12-01), Grosjean

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