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    • 45. 发明授权
    • Internal combustion engine ignition coil
    • 内燃机点火线圈
    • US06763816B1
    • 2004-07-20
    • US10009366
    • 2001-12-10
    • Kenji NakabayashiJunichi ShimadaNoboru Sugiura
    • Kenji NakabayashiJunichi ShimadaNoboru Sugiura
    • F02P1308
    • H01F38/12H01F27/323H01F27/327H01F2038/122
    • An independent ignition type ignition coil for an internal combustion engine, comprising, arranged concentrically in a coil case (6) and with the innermost one mentioned first, a center core (1), a secondary coil (3) wound on a secondary bobbin (2) and a primary coil (5) wound on a primary bobbin (4), with epoxy resin (8) and soft epoxy (17) filled between these component members, wherein a coating is formed on the outer surface of the primary coil (5) so as to facilitate the separation from the epoxy resin (8) and the presence of this separation portion (50) between the primary coil (5) and the resin and in an interlayer of the primary coil (5) can reduce from a thermal stress produced within the secondary bobbin (2) a stress which is produced in the secondary bobbin by a heat contraction difference between the primary coil (5) and the secondary bobbin, thereby reducing the thermal stress of the secondary bobbin of the independent type ignition coil exposed to a rigorous temperature environment to prevent bobbin cracking and ensure an integrity of electrical insulation.
    • 一种用于内燃机的独立点火式点火线圈,包括同心地布置在线圈壳体(6)中并且具有最内侧的点火线圈的中心铁芯(1),次级线圈(3) 2)和缠绕在主线轴(4)上的初级线圈(5),其中环氧树脂(8)和软环氧树脂(17)填充在这些部件之间,其中在初级线圈的外表面上形成涂层 5),以便促进与环氧树脂(8)的分离,并且初级线圈(5)和树脂之间以及初级线圈(5)的中间层中存在该分离部分(50)可以从 在次级绕线筒(2)内产生的热应力是通过初级线圈(5)和次级绕线筒之间的热收缩差在副绕线筒中产生的应力,从而降低了独立型点火的次级绕线筒的热应力 线圈暴露于严酷的温度e 防止线轴裂纹,保证电气绝缘的完整性。