Inductor winding apparatus and method

Details Inductor winding apparatus and method Inductor winding apparatus and method

1991-11-22

1994-06-21

Larson, Lowell A.

Metal deforming

By deflecting successively-presented portions of work during...

To form helical coil or tube

B21F 304

Patent

active

053219651

ABSTRACT:
There are provided low profile inductor and transformer windings, and methods for fabricating the same. An elongate conductive ribbon is wound in one continuous direction on a generally hourglass shaped mandrel to form the ribbon into a double conical helix having a plurality of spaced apart coils. A sheet of dielectric material having an orifice therethrough is threaded to the midpoint of the double conical helix. The two sides of the helix are then compressed into planes such that the coils in each side lie flat and engage the adjacent side of the sheet of dielectric material. A compound inductor winding can be fabricated from a continuous conductive ribbon wound into a plurality of double conical helixes joined end-to-end. After compression, the compound winding consists of a low profile stack of spiraled windings connected in series, but constituting only one continuous ribbon having no internal connections.

REFERENCES:
patent: 1165779 (1915-12-01), Humphrey
patent: 3195182 (1965-07-01), Osewell
patent: 3811045 (1974-05-01), Turner et al.
patent: 3858312 (1975-01-01), Gharaibeh

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