Armature annular core

Details Armature annular core Armature annular core

1985-09-30

1988-01-12

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310214, 310268, H02K 1512

Patent

active

047193778

ABSTRACT:
An annular core used in a so-called air axial gap motor includes a magnetic and structural gap along the axial direction. By using a compressed molded body of a mixture of a magnetic metal powder and an electrically insulating resin as major constituents, an annular molded body and a molded plate are prepared. The annular molded body has slots and teeth alternately formed along the circumferential direction. The molded plate closes the upper portions of the slots to constitute a fully closed slot structure.

REFERENCES:
patent: 2758231 (1956-08-01), Welter
patent: 3489938 (1970-01-01), Nakamura
patent: 3872334 (1975-03-01), Loubier
patent: 4255494 (1981-03-01), Reen et al.
patent: 4503368 (1985-03-01), Sakamoto

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