Encapsulated coil and method of making the same

Details Encapsulated coil and method of making the same Encapsulated coil and method of making the same

1974-08-05

1976-01-13

Kozma, Thomas J.

Inductor devices

With outer casing or housing

Potted type

29602, 336192, 339276C, H01F 1510

Patent

active

039328287

ABSTRACT:
A plastic bobbin for the coil is formed with a terminal-receiving block extending out from the bobbin axially from one bobbin flange. The bobbin is wound with a coil the end wires of which are temporarily secured in slits in the edge of a bobbin flange. Terminal tubes which are in the form of eyelet-blanks, each having one end headed, are inserted through the block so that the unheaded end projects from the block into planar alignment with the coil. A tongue is cut axially from the end of each tube and bent back to form a hook. The end wires are slipped under the hooks and welded. Lead wires are inserted into the eyelets which are crimped upon the lead wires to secure the lead wires and make a good connection. A quick-setting cement is applied between the lead wires and the block, into which they extend. The bobbin, and the portion of the block in planar alignment with it are then encapsulated with plastic.

REFERENCES:
patent: 1813154 (1931-07-01), Franz
patent: 2802193 (1957-08-01), Biba, Jr. et al.
patent: 3054027 (1962-09-01), Barrick et al.
patent: 3315198 (1967-04-01), Biesma et al.
patent: 3359520 (1967-12-01), Foerster
patent: 3450828 (1969-06-01), Joly
patent: 3544940 (1970-12-01), Davis
patent: 3566322 (1971-02-01), Horbach
patent: 3609616 (1971-09-01), Dumeige
patent: 3660791 (1972-05-02), Davis
patent: 3800172 (1974-03-01), Artin et al.

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