Bobbins for electrical coils and method of manufacturing electri

Details Bobbins for electrical coils and method of manufacturing electri Bobbins for electrical coils and method of manufacturing electri

1986-12-11

1987-10-20

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335299, 336205, 336208, H01F 500

Patent

active

047017350

ABSTRACT:
A symmetrical bobbin especially adapted for the automatic manufacture of electrical coils. The bobbin, formed of high-strength plastic material, comprises first and second lips formed at terminal ends thereof and first and second flanges spaced inwardly from the lips. The bobbin surface between the flanges defines a main coil winding space and the bobbin surfaces between the lips and corresponding flanges define first and second terminal winding spaces. Immersion soldered terminal connections, of high physical strength, durability and electrical conductivity, are formed by extensibly wrapping electrical wire from the main coil about the terminal winding spaces and subsequently immersing the wire-wound terminal winding spaces in molten solder to provide a circumferential bond of unitary structure for terminal connection.

REFERENCES:
patent: 3661342 (1972-05-01), Seans
patent: 3939450 (1976-02-01), Donnelly
patent: 4308784 (1983-04-01), Hill et al.
patent: 4595901 (1986-06-01), Yahagi

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