IGNITION COIL FOR INTERNAL COMBUSTION ENGINE

To provide an ignition coil for an internal combustion engine capable of achieving productivity improvement and miniaturization of an ignition coil.SOLUTION: An ignition coil for an internal combustion engine includes a primary and a secondary coils, a circuit board on which an electronic circuit is...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: YAMAGUCHI HIRONAO, OKADA YUJI, IRIE MASATSUGU
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide an ignition coil for an internal combustion engine capable of achieving productivity improvement and miniaturization of an ignition coil.SOLUTION: An ignition coil for an internal combustion engine includes a primary and a secondary coils, a circuit board on which an electronic circuit is formed, a coil case in which the primary coil, the secondary coil, and the circuit board 6 are accommodated, and a connector disposed on the coil case, in which a plurality of connector terminals 31 are provided. A plurality of groove parts 61 each having a conductor layer provided on its inner lateral surface are formed at an either end part 601 of the circuit board 6. A relay terminal 23 connected to each of a pair of coil end parts of the primary coil, a relay terminal 23 connected to a low-voltage side coil end of the secondary coil, and the plurality of connector terminals 31 are electrically connected to the conductor layer by being inserted to the groove parts 61.SELECTED DRAWING: Figure 4 【課題】点火コイルの生産性の向上及び小型化を図ることができる内燃機関用の点火コイルを提供する。【解決手段】内燃機関用の点火コイルは、一次コイル及び二次コイルと、電子回路が形成された回路基板と、一次コイル、二次コイル及び回路基板6が収容されたコイルケースと、コイルケースに配置され、複数のコネクタ端子31が設けられたコネクタとを備える。回路基板6のいずれかの端部601には、導体層が内側面に設けられた溝部61が複数形成されている。一次コイルの一対のコイル端部にそれぞれ接続された中継端子23、二次コイルの低電圧側のコイル端部に接続された中継端子23、及び複数のコネクタ端子31は、溝部61に挿入されて導体層に電気接続されている。【選択図】図4