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The bai magnetic switch of the car starter is composed of a suction coil (a thicker copper wire), a holding coil (a thicker copper wire), a dao iron core, a copper contact sheet, and a return spring. Its function is to send the clutch gear of the starter into the flywheel ring gear of the engine by energizing the coil to move the iron core. When the clutch gear is coupled with the flywheel ring gear, the starter power is turned on by contacting the copper plate to make the starter rotate and start the engine .


1. The starter electromagnetic switch is on the starter motor. When starting, the electromagnetic switch generates magnetic force to push the starter gear to coincide with the flywheel ring gear, and the starter motor runs, and the engine starts.


2. The electromagnetic switch, as the name implies, is a switch controlled by an electromagnet, which is a combination of an electromagnet and a switch. When the electromagnet coil is energized, electromagnetic attraction is generated, and the movable iron core pushes or pulls the switch contact to close, thereby turning on the controlled circuit. Electromagnetic switches are widely used in various industries, and the most common is the contactor in the industrial field.


3. The electromagnetic switch is the most vulnerable component of the starter, which directly affects the reliability of the engine