What is the function of the ignition coil?

(1) the function of the ignition coil: the secondary coil of the ignition coil is used to produce a high voltage of 15 ~ 20kV, so that the spark plug electrode breaks through the air molecules and ionization, forming an electric spark.        (2) the shape of the core of the ignition coil is different; the magnetic circuit is different. For example, the magnetic circuit produced by a rectangular core and a U core is different. In this regard, the ignition coil is divided into open circuit ignition coil and closed ignition coil two categories. The open circuit ignition coil is divided into two terminals and three terminals according to the terminal column. The so-called two and three terminals, that is, two terminal column, no additional resistance. Open core ignition coil of a rectangular steel plate and superposition of Guangxi, thickness of 0.3 ~ 0. 5mm, core surrounded by an insulating cardboard sleeve, above the winding of.06 ~ 0. LMM enameled wire secondary winding turns into 11000 ~ 23000 turns.        the primary winding is wrapped by a piece of 5-1. Omm enameled wire at the lower end of the secondary coil to dissipate heat with turns of 230 to 270 turns. The secondary winding is connected with one end of a bakelite terminal cover. The connection terminal is connected with the starting motor terminal. The other end is the high voltage output, the distributor or the spark plug (double ignition coil). Bakelite cover not only another terminal is connected with the ignition switch, and is connected with the end of the additional resistance. The other end is attached to the terminal. The primary winding is on the core below the secondary coil. The lower end of the primary coil is connected with the fourth terminals, and the other end of the secondary winding is connected with the lower end of the primary winding near the secondary coil. This connection ensures that the central electrode of the spark plug is negative. (2) closed circuit ignition coil: its core is in the form of a cross or a mouth shape, a primary coil is wound around the core, and a secondary winding is arranged around it, and a closed circuit is formed with the iron core. The working principle is the same as the open circuit ignition system.

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