Ignition coil
US8564392B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 2012 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | May 1, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2038/127
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ignition coil includes a central core, a primary winding, a spool, a secondary winding, and a case outward of the core, spool, primary winding, and secondary winding. The secondary winding is wound on the spool and includes a high voltage end. The ignition coil also includes a cup formed of a metal material in electrical communication with the high voltage end of the secondary winding and is configured to be contacted by a conductive connector that is suitable for connection to a spark plug. The cup includes a generally cylindrical first sidewall press fit with the case and defining a press fit area at the interface of the first sidewall and the case, a generally cylindrical second sidewall spaced radially from the first sidewall, and an annular space defined between the press fit area and the second sidewall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.