Insulating method for rotary electric machine

Details Insulating method for rotary electric machine Insulating method for rotary electric machine

1983-12-20

1986-10-14

Rosenbaum, Mark

Metal working

Method of mechanical manufacture

Electrical device making

29598, 310208, 310 45, 427116, 427185, H02K 1510

Patent

active

046164073

ABSTRACT:
A method for insulating a coil of a rotary electric machine resulting in improved insulating properties at critical coil ends. A mica sheet or mica tape is wound around a part of each coil to be inserted into a slot cut in an iron core of the rotary electric machine to thus form a first insulating layer. The coils thus treated are inserted into respective slots and are connected together and to external terminals as required. Each coil end is then covered in its entirety with a thermosetting resin. The thermosetting resin is hardened by heating to form a second insulating layer.

REFERENCES:
patent: 2997776 (1961-08-01), Matter et al.
patent: 3618929 (1971-11-01), Upchurch
patent: 3813294 (1974-05-01), Dyer et al.
patent: 4224090 (1980-09-01), Garner

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