IGNITION DEVICE

PROBLEM TO BE SOLVED: To provide an ignition device capable of restraining occurrence of crack in filling resin.SOLUTION: An ignition device 1 includes a resin case 11, a core 12 having a center core 121 (pillar part), a coil bobbin 13, an ignition coil 14, a retainer 15 where an annular part 151, a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TANAKA YUKI, NAKAMURA TOSHIYA, TSUBAKINO KAZUNORI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide an ignition device capable of restraining occurrence of crack in filling resin.SOLUTION: An ignition device 1 includes a resin case 11, a core 12 having a center core 121 (pillar part), a coil bobbin 13, an ignition coil 14, a retainer 15 where an annular part 151, and four leg form parts 152 extending from the annular part 151 are integrally molded of resin, and a filling resin 16 filling the resin case 11. The annular part 151 penetrates the center core 121 (pillar part), the four leg form parts 152 extend, respectively, toward bottom wall 11b along the center core 121 (pillar part), between inner surface of through hole in the coil bobbin 13, and the outer peripheral surface of the center core 121 (pillar part).SELECTED DRAWING: Figure 3 【課題】充填樹脂におけるクラックの発生を抑えることができる点火装置を提供する。【解決手段】点火装置1が、樹脂ケース11と、中心コア121(柱部分)を有するコア12と、コイルボビン13と、点火コイル14と、円環部151、及び、円環部151から延在する4本の脚状部152、が樹脂で一体成形されたリテーナ15と、樹脂ケース11に充填された充填樹脂16と、を備え、円環部151が中心コア121(柱部分)に貫通され、4本の脚状部152が、コイルボビン13における貫通孔の内面と中心コア121(柱部分)の外周面との間を中心コア121(柱部分)に沿って底壁11bに向かって各々が脚状に延在している。【選択図】図3