Method of manufacturing a coil on a toroidal magnetic circuit

Inductor devices – Coils of special configuration – Toroidal

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336212, 29605, 296021, H01F 500

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active

055834752

ABSTRACT:
The method comprises producting a linear coil (4) by winding around a cylindrical mandrel (5) a conductor wire coated with a thermo-adhesive varnish, opening the toroidal magnetic circuit (1), withdrawing the linear coil (4) from the cylindrical mandrel (5), heating the linear coil (4) so as to render it flexible, slapping the linear coil over the open toroidal magnetic circuit (1), reclosing the toroidal magnetic circuit, and allowing the assembly to cool.

REFERENCES:
patent: 1656933 (1928-01-01), Ahlstrand
patent: 1994534 (1935-03-01), Robinson
patent: 3153841 (1964-10-01), Schrot
patent: 4782582 (1988-11-01), Venezia
patent: 5247907 (1994-01-01), Moorehead
patent: 5331729 (1994-07-01), Moorehead
Patent Abstracts of Japan, vol. 6 No. 215, (E-138) (1093) Oct. 28, 1982 & JP-A-57120314.

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