Field-coil bobbin with built-in-one-shot thermal protector

Details Field-coil bobbin with built-in-one-shot thermal protector Field-coil bobbin with built-in-one-shot thermal protector

1976-11-22

1979-01-02

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 43, 310194, 336192, 339 95D, H02K 1100

Patent

active

041329139

ABSTRACT:
A bobbin for carrying a field coil winding is made of molded plastic resin material having good electrical insulating characteristics and having an insulating channel formed in the hollow spindle portion thereof for carrying a fuse type or one-shot thermal protector. The bobbin flanges are thickened at either end of the insulating channel and sockets are formed in the flange thickened portion for carrying a quick-connect device which is generally U-shaped with slots in the legs adapted to engage coil end-wires when the device is forced into a socket. One end of the device carries a bent-over tongue adapted for locking engagement with the stripped end of an insulated lead-wire. The other end of the device carries a V-shaped camming notch contiguous with and connected to a hole adapted to admit a projecting boss formed at the bottom of each socket for forcing the terminal ends of the one-shot thermal protector carried in the bobbin insulating channel into contact with the sides of the leg slots, the socket walls being slotted for admitting the terminal ends to the sockets.

REFERENCES:
patent: 2484212 (1949-10-01), Ferris
patent: 3200273 (1965-08-01), Lindt
patent: 3259864 (1966-07-01), Marzolf
patent: 3275774 (1966-09-01), Miller
patent: 3405317 (1968-10-01), Anderson
patent: 3553621 (1971-01-01), Lane
patent: 3585450 (1969-08-01), Lane
patent: 3691425 (1972-09-01), Weyrich
patent: 3959675 (1976-05-01), Lautner
patent: 3963949 (1976-06-01), Church
patent: 3979615 (1976-09-01), Neff

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