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    • 4. 发明授权
    • Ignition coil assembly
    • 点火线圈组件
    • US06448878B1
    • 2002-09-10
    • US09532680
    • 2000-03-21
    • David H. MullinsHayato Koguchi
    • David H. MullinsHayato Koguchi
    • H01F2702
    • H01F38/12H01F27/245H01F2038/122
    • An ignition coil assembly is disclosed for a spark plug of the type used in internal combustion engines. The ignition assembly includes a housing, a tubular and cylindrical primary coil, and a tubular and cylindrical secondary coil. The primary and secondary coils are each wound on their individual bobbins and the bobbins are mounted in the housing such that the primary coil is coaxially positioned inside the secondary coil. The ignition coil assembly further includes a magnetic core having a first portion which extends through the interior of both the primary and secondary coil and a second portion which extends exteriorly of the primary and secondary coils. The first portion of the coil is substantially circular in cross sectional shape thus matching the circular interior of the primary bobbin. In order to construct the primary coil and secondary coil subassembly, the primary bobbin is first positioned on a winding machine and the primary wire is wound on the bobbin. Thereafter, the secondary bobbin is positioned over the primary bobbin and the wire for the secondary coil is then wound by the winding machine.
    • 公开了一种用于内燃机中使用的火花塞的点火线圈组件。 点火组件包括壳体,管状和圆柱形初级线圈以及管状和圆柱形次级线圈。 初级线圈和次级线圈各自缠绕在其单独的线轴上,线轴安装在壳体中,使得初级线圈同轴地位于次级线圈内。 点火线圈组件还包括具有延伸穿过主线圈和次级线圈的内部的第一部分和在主线圈和次线圈外延伸的第二部分的磁芯。 线圈的第一部分的横截面形状基本上为圆形,从而匹配主线轴的圆形内部。 为了构成初级线圈和次级线圈子组件,初级线轴首先位于绕线机上,主线缠绕在线轴上。 此后,副绕线筒位于主线轴上方,然后绕线机缠绕次级线圈用线。