Inserted-type automobile ignition coil iron core provided with air gap magnetic steel disc

Abstract

The invention relates to an inserted-type automobile ignition coil iron core provided with an air gap magnetic steel disc, which comprises a first U-shaped iron core and a second U-shaped iron core forming an annular iron core through butt joint; one sides of the first U-shaped iron core and the second U-shaped iron core are permanent connection ends; and an air gap is arranged between the end faces of the other sides of the first U-shaped iron core and the second U-shaped iron core. The inserted-type automobile ignition coil iron core provided with the air gap magnetic steel disc is characterized in that the magnetic steel disc of which the polarity is opposite to the magnetizing direction of the iron core is inserted into the air gap; the permanent connection end of the first U-shaped iron core is provided with a bead; the permanent connection end of the second U-shaped iron core is provided with a groove which corresponds to the bead; and the first U-shaped iron core and the second U-shaped iron core are mutually and fixedly connected after being inserted into the groove through the bead in the manner of transition fit. The inserted-type automobile ignition coil iron core provided with the air gap magnetic steel disc has the beneficial effect that the stored energy of the iron core is increased, the high-voltage input of an automobile ignition coil is improved, and an epoxy resin splicing process is not needed, so that the working environment is improved, and the physical health of operating personnel is ensured.

Description

technical field [0001] The invention relates to an automobile ignition coil iron core, in particular to a plug-in automobile ignition coil iron core provided with an air gap magnetic steel sheet. Background technique [0002] With the development of automobile ignition system, the structure of automobile ignition coil is developing in the direction of miniaturization, light weight and high energy. The single-head dry-type in-line ignition coil is becoming a market-focused product leading the technology development trend due to its advantages of low energy consumption, low electromagnetic interference, and easy use. The coil assembly of the existing single-ended dry-type in-line ignition coil mainly includes an iron core, a shell, a primary coil, a secondary coil, and a low-voltage input terminal and a high-voltage output terminal respectively connected to the primary and secondary coils. Due to the narrow space of the existing single-head dry-type in-line ignition coil, the...

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Problems solved by technology

The existing single-head dry-type in-line ignition coil has a small space due to structural limitations, small energy storage in the iron core, and low high-voltage output, which is not conducive to ignition; in addition, the current iron core is formed by butting two identical U-shaped iron cores Ring structure, one side of the two U-shaped iron cores is a fixed connection end, and an air gap is provided between the two ends of the other side, and the side with the air gap between the two ends of the ring iron core and the primary coil skeleton are potted with epoxy resin Fixed, the fixed connection end on the other side is bonded by epoxy resin adhesive, because the epoxy resin adhesive is irritating to the human body, long-term contact will cause allergies and other diseases, which is harmful to human health

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