Winding, particularly for a high-voltage ignition coil circuit
AssigneeSagem SA
InventorPierre Heritier-Best
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Abstract
A process for producing a coil of wire formed at least partially of substantially frustoconical plies of wires laid against one another in a continuous fashion. Wire is first wound onto a core in a first direction over a first length L which is less than the length of the core. Winding continues in the opposite direction over a second length L-d.sub.1 which is less than length L by an amount d.sub.1, and winding then continues in the first direction over a third length (L-d.sub.1)+d.sub.2 which is greater than said second length L-d.sub.1 by an amount d.sub.2. Winding then continues in the same manner until the desired number of plies is obtained.
Claims7
A process for producing a coil of wire, formed at least partially of substantially frustoconical plies of wires laid against one another in a continuous fashion, comprising the steps of:
- a) winding a wire onto a core of known length in a first direction over a first length L which is less than the length of the core;
- b) continuing to wind said wire in a direction opposite to said first direction over a second length L-d.sub.1, which is less than length L by an amount d.sub.1 ;
- c) continuing to wind said wire in the first direction over a third length (L-d.sub.1)+d.sub.2 which is greater than said second length L-d.sub.1 by an amount d.sub.2 ;
- d) repeating steps b) and c) until a desired number of turns has been obtained, each said step b) being carried out over a length which is less than that of all preceding steps c) and all subsequent steps c).
Dependencies are inferred from the claim text.