Method of mounting and casting a flat rotor

Details Method of mounting and casting a flat rotor Method of mounting and casting a flat rotor

1980-11-21

1983-12-20

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

29598, 310 43, 310237, 310268, H01R 4308, H02K 1502

Patent

active

044208758

ABSTRACT:
An electric motor rotor assembly and method of forming the flat rotor wherein an inner tubular casing and a commutator are molded in a first mold thereby forming between the casing and the commutator a molded resin intermediate section. After the so molded commutator is removed from the first mold, the windings for the rotor are first cold crimped and then hot crimped to the commutator thereby breaking the insulation and providing a good electrical connection. After the windings are attached to the commutator, it can then be tested to check the windings for electrical continuity. After the testing, the assembly is placed into a second mold where resin is injected about the windings forming a resin enclosing sheath.

REFERENCES:
patent: 3599325 (1971-08-01), Burr et al.
patent: 3705997 (1972-12-01), Baucle et al.
patent: 3863336 (1975-02-01), Noto et al.
patent: 3925881 (1975-12-01), Bowcott
patent: 4164675 (1979-08-01), Sato et al.

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