Armature structure for permanent magnet d-c motor

Details Armature structure for permanent magnet d-c motor Armature structure for permanent magnet d-c motor

1975-10-24

1977-10-11

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310154, 310261, H02K 106

Patent

active

040538010

ABSTRACT:
A permanent magnet d-c motor is described in which the weight and cost of the armature is substantially reduced by removing some of the steel laminations. To maintain performance, the remaining laminations are spaced apart so that the axial length of the armature remains unchanged and the width of the armature winding slots are kept to a minimum to prevent magnetic saturation within the armature teeth. Two means for spacing the laminations are described.

REFERENCES:
patent: 249148 (1881-11-01), Long
patent: 831625 (1906-09-01), McElroy
patent: 2860289 (1958-11-01), Verardo
patent: 3062979 (1962-11-01), Jarret et al.
patent: 3277324 (1966-10-01), Beaudoin et al.

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