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Encapsulated Coil Having Three Flange Coil Bobbin

IP.com Disclosure Number: IPCOM000046278D
Original Publication Date: 1983-Jun-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 52K

Publishing Venue

IBM

Related People

Warner, JB: AUTHOR

Abstract

Electric coil 10 (Fig. 1) includes a bobbin 20 (Fig. 2) having a central core 25 for receiving and supporting convolutions of electrical wire. A flange 26 is attached to one end of core 25 for confining the convolutions of electrical wire between it and a second flange 27 which has two end opening slots 28 and 29 through which start and finish ends of the electrical coil wire exit. A third flange 30 is also mounted to central core 25 in spaced relationship with flange 27. A web 35 extends from flange 27 to flange 30 to prevent stranded lead wires soldered to the start and finish ends (Figs. 3 and 4) from shorting together.

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Encapsulated Coil Having Three Flange Coil Bobbin

Electric coil 10 (Fig. 1) includes a bobbin 20 (Fig. 2) having a central core 25 for receiving and supporting convolutions of electrical wire. A flange 26 is attached to one end of core 25 for confining the convolutions of electrical wire between it and a second flange 27 which has two end opening slots 28 and 29 through which start and finish ends of the electrical coil wire exit. A third flange 30 is also mounted to central core 25 in spaced relationship with flange 27. A web 35 extends from flange 27 to flange 30 to prevent stranded lead wires soldered to the start and finish ends (Figs. 3 and 4) from shorting together.

After the electrical wire has been wound on the bobbin 20 and the stranded lead wires 4l and 42 have been joined to the coil wires, the coil is encapsulated such as by injection molding a suitable plastic material around the coil.

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