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热词
    • 77. 发明授权
    • Ignition coil
    • US11551860B2
    • 2023-01-10
    • US17171345
    • 2021-02-09
    • DENSO CORPORATION
    • Norihiro AdachiJunichi Wada
    • H01F27/26H01F38/12
    • An ignition coil includes a center core, a first core member, and a second core member. The first core member includes a first core-facing portion facing a front core surface of the center core and a first core side portion extending rearward from the first core-facing portion. The second core member includes a second core-facing portion facing a rear core surface of the center core and a second core side portion extending frontward from the second core-facing portion. The first core-facing portion has an end surface contacting a portion of the second core side portion to create a first contact region. Similarly, the second core-facing portion has an end surface contacting a portion of the first core side portion to create a second contact region. The first and second contact regions are shaped to approach frontward close to the first core side portion. This structure enhances productivity of the ignition coil.