Conductive winding
First Claim
1. A conductive winding structure comprising a resilient helical winding having turns cut from a hollow conductive piece, said resilient winding being axially compressed after cutting so as to reduce spacing between said turns, whereby a fill factor of said resilient winding is increased.
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Accused Products
Abstract
A generally helical cut is made in a tubular conductive piece to form a winding, the winding having spaces between successive turns. The winding is axially compressed to reduce the spaces. One or more of the windings may be combined with one or more pieces of permeable or non-permeable material to form electromagnetic structures (for example, inductors or transformers) which have very high fill factors. A succession of such devices, each having possibly different numbers of turns on their windings, may be easily manufactured on a "lot-of-one" basis in an automated manufacturing environment.
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Citations
14 Claims
- 1. A conductive winding structure comprising a resilient helical winding having turns cut from a hollow conductive piece, said resilient winding being axially compressed after cutting so as to reduce spacing between said turns, whereby a fill factor of said resilient winding is increased.
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2. An electromagnetic structure comprising
a resilient helical winding having turns cut from a hollow conductive piece, and a permeable core with which said winding cooperates electromagnetically, said winding being held on said core in a compressed state such that a fill factor of said winding is increased.
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8. An electromagnetic structure comprising
a resilient helical winding having turns cut from a hollow conductive piece, and a permeable core with which said winding cooperates electromagnetically, said winding being held on said core in a compressed state such that a fill factor of said winding is increased and further comprising winding terminations formed integrally with said winding, said winding terminations extending parallel to the longitudinal direction of said winding.
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14. A conductive winding structure comprising a resilient helical winding having turns cut from a hollow conductive piece, and structure for holding said winding in an axially compressed state so as to reduce spacing between said turns.
Specification