Ignition apparatus having feature for shielding the HV terminal
US6724289B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2001 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Mar 17, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2038/122
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ignition apparatus includes a high voltage (HV) terminal formed of stamped sheet metal configured to be disposed in a secondary winding spool, and to which a high voltage end of the secondary winding is attached and soldered. The ignition apparatus further includes an electrically conductive cup configured to surround the high voltage terminal when the secondary winding spool is inserted in the case. The high voltage terminal has one end that comes into engagement with an inner annular surface of the cup. The cup includes an annular sidewall that extends axially up to a winding flange where a HV end of the secondary winding exits a winding bay thereby surrunding the exiting HV secondary winding wire. The cup provides for a reduced electric field concentration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.