Flat coil dynamoelectric device with encapsulated preform

Details Flat coil dynamoelectric device with encapsulated preform Flat coil dynamoelectric device with encapsulated preform

1986-07-08

1987-06-30

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

29598, 310 43, 310208, H02K 1504

Patent

active

046773347

ABSTRACT:
A discoidal, flat coil armature for a flat disc motor is formed by winding coils of wire on mutually spaced inner and outer ring structures. The inner ring structure surrounds a commutator body having segments with tangs. Automatic apparatus, including a rotating flier, a preform clamp and rotator, and a wire guide assembly, winds the coils and makes coil terminal connections to the commutator tangs before, during, and after the winding of the coils. The coils are tightly wound on the ring structures so that they form, along with the ring structures and the commutator body, an armature preform having a self-supporting shape. The parts of the finished preform are bonded together and to an armature shaft by a matrix of resinous material. When completed, the armature includes a thin-walled, active coil section having substantially radially extending active coil sides encapsulated in plastic and located between the inner and the outer ring structures, and also includes inner and outer coil end turns that are also encapsulated in plastic and that extend substantially circumferentially along the inner and the outer ring structures.

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