公开(公告)号：US11276524B2

公开(公告)日：2022-03-15

申请号：US16826448

申请日：2020-03-23

申请人： DENSO CORPORATION

发明人： Koji Tsunenaga ,  Shigemi Ito

IPC分类号： H01T13/04 ,  H01F38/12 ,  H01R13/24 ,  H01T13/44 ,  H01T13/41

摘要： An ignition coil includes a coil main body portion, a conductive member, and a protective portion. The coil main body portion generates a high voltage. The conductive member electrically connects the coil main body portion and a terminal metal fitting of a spark plug. The conductive member is arranged inside the protective portion. The protective portion has an electrically insulating property. The conductive member includes an elastic portion that elastically deforms in a longitudinal direction of the conductive member, and a conductive terminal that is arranged on a distal end side of the elastic portion. The conductive terminal has a distal end surface that includes a concave surface or a convex surface that abuts on the terminal metal fitting of the spark plug. A contact portion between the concave surface or the convex surface and the terminal metal fitting of the spark plug has an annular shape.