Patent · US Active

Primary coil former for an ignition coil, and ignition coil with such a primary coil former

US11527355B2 · kind B2 · utility

0Cited by

5References

6Claims

0Family size

Assignee

BorgWarner Ludwigsburg GmbH · DE

Inventors

Sven Schumm · Walheim, DE
Manfred Adolf · Schwaikheim, DE
Timo Stifel · Stuttgart, DE
Dirk Wüstenhagen · Auma, DE
Manuel Bauer · Graz, AT
Alexander Stark · Althengstett, DE

Key dates

Filing date	Nov 15, 2019
Grant date	Dec 13, 2022
Priority date	—
Expiry date	Aug 5, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH01F27/325
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A primary coil former for an ignition coil has a winding carrier surface configured for a primary coil wound thereon. Two primary winding stops limit the winding carrier surface at first and second axial ends of the carrier surface, respectively. Two holders are formed at the first axial end, each configured for holding one end of a winding wire. Two deflection domes are formed at the second axial end, one of the domes configured for guiding a winding wire back to the winding carrier surface for a clockwise winding and the other dome configured for guiding a winding wire back to the winding carrier surface for a counterclockwise winding. A groove in the winding carrier surface receives a winding wire which leads from one of the ends of the winding carrier surface up to a gap between the two deflection domes at the opposite end of the winding carrier surface.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.