Ignition apparatus having feature for shielding the HV terminal

摘要

An ignition apparatus (10) includes a high voltage (HV) terminal (52) formed of stamped sheet metal configured to be disposed in a secondary winding spool (28), and to which a high voltage end (30HV) of the secondary winding (30) is attached and soldered. The ignition apparatus (10) further includes an electrically conductive cup (37) configured to surround the high voltage terminal (52) when the secondary winding spool (28) is inserted in the case (34). The high voltage terminal (52) has one end (522) that comes into engagement with an inner annular surface of the cup (37). The cup (37) includes an annular sidewall (59) that extends axially up to a winding flange (50) where a HV end (30HV) of the secondary winding exits a winding bay thereby surrunding the exiting HV secondary winding wire. The cup (37) provides for a reduced electric field concentration. <IMAGE>