Magnetic closed ignition coil

Abstract

A magnetic closed ignition coil disclosed in the invention includes iron core, a primary winding wound around the periphery of the core and arranged axially, a high voltage skeleton sleeved over the primary winding, a secondary winding wound on a high voltage skeleton, a ceramic conductive sleeve sleeved on the secondary winding and a housing enclosing the above-mentioned components, characterizedin that: a magnetic conductive cov is fixed on both end surface of that porcelain conductive sleeve and the two end surfaces of the iron core are bonded with the two magnetic conductive covers, so that a closed magnetic circuit is for, Increase core flux, so as to obtain more ignition energy at the output end of the same volume pen rod coil, a magnetic steel is clam between one end of that iron core and the magnetic conductive cover at the correspond end, and the magnetic circuit is not saturated due to the magnetic bias. The ceramic conductive sleeve is open-loop, and the open-loop is necessary, otherwise, the primary short circuit is equivalent, and the open-loop can also insulate the high-voltage output end from the magnetic conductive sleeve by a sufficient distance.

Description

technical field [0001] The invention belongs to the technical field of ignition coils, in particular to a closed magnet ignition coil. Background technique [0002] As a main means of transportation, automobiles are indispensable in people's daily work and life in today's society. With the continuous development and updating of the automobile industry, most of the ignition coils used in cars today have been changed to a pen holder structure. This type of ignition coil is directly connected to the spark plug through a rubber sheath. The product is small in size and has strong electromagnetic compatibility. , high output voltage and higher combustion efficiency are the development trend of ignition coils. [0003] However, the existing ignition coils often adopt an open-loop iron core structure, resulting in insufficient secondary ignition energy, which affects the engine power. However, due to the limitation of the volume of the ignition coil, it is impossible to improve the...

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Problems solved by technology

[0003] However, the existing ignition coils often adopt an open-loop iron core structure, resulting in insufficient secondary ignition energy, which affects the power of the engine. However, due to the limitation of the volume of the ignition coil, it is impossible to improve the secondary voltage by increasing the iron core or winding of the ignition coil. to improve ignition energy

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