Small sized fan motor

Details Small sized fan motor Small sized fan motor

1986-04-18

1987-08-11

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 90, 310156, H02K 2112

Patent

active

046864008

ABSTRACT:
A small sized fan motor is disclosed, wherein an armature is supported by a disk-shaped support in a cantilever fashion, a rotor has an outer periphery for fixedly mounting a fan having a plurality of blades thereon and an inner periphery for fixedly mounting a permanent magnet thereon in a manner that the permanent magnet surrounds the armature with a clearance being provided therebetween, and a rotational bearing having an inner race secured to the disk-shaped support and an outer race secured to the inner periphery of the rotor in a manner that the rotational bearing is arranged coaxial with the permanent magnet within the rotor.

REFERENCES:
patent: 2924730 (1960-02-01), Spitler
patent: 3175755 (1965-03-01), Rockafield
patent: 3881123 (1975-04-01), Paul
patent: 4115715 (1978-09-01), Muller
patent: 4311933 (1982-01-01), Riggs

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