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Ignition coil type Sep 02, 2018

Ignition coil type

The ignition coil is divided into an open magnetic type and a closed magnetic type according to the magnetic circuit. The conventional ignition coil is an open-magnetic type, the core of which is laminated with a silicon steel sheet of about 0.3 mm, and the core is wound with a secondary and primary coil. In the closed magnetic mode, a core similar to III is used to surround the primary coil, and the outer coil is wound around the secondary coil, and the magnetic line is composed of a core to form a closed magnetic circuit. The advantage of the closed magnetic ignition coil is that the magnetic leakage is small, the energy loss is small, and the volume is small. Therefore, the electronic ignition system generally adopts a closed magnetic ignition coil.