Segmental permanent-magnet stator magnet

Details Segmental permanent-magnet stator magnet Segmental permanent-magnet stator magnet

1977-07-12

1979-05-15

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310218, H02K 2126

Patent

active

041550218

ABSTRACT:
An electric machine includes a flux-return yoke, a plurality of segmental permanent-magnet stator magnets mounted in the yoke with their outer peripheral surfaces engaging the inner peripheral surface of the flux-return yoke, and a wound rotor mounted for rotation in the space defined by the segmental stator magnets. Either the segmental stator magnets on their outer peripheral surfaces or else the flux-return yoke on its inner peripheral surface is provided with a structured surface portion adapted to properly position the stator magnets relative to the yoke. The structured surface portion has the form of a multitude of projections of identical height arranged in rows to form an array.

REFERENCES:
patent: 3979619 (1976-09-01), Whiteley

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