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What is the role of the motor-motor relay?

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definition: The structure of the starting relay consists of an electromagnet mechanism and a contact assembly. The coil is connected with the ignition switch terminal and the grounding terminal on the shell respectively. The fixed contact is connected with the starter S terminal, and the movable contact is connected with the battery terminal "BAT" through the contact arm and the bracket. Start relay electric shock is normally open contact, when the coil is energized, the relay core will produce electromagnetic force, so that the contact closed, so the relay control of the suction coil and keep the coil circuit connected.
May 9, 2017
principle: Simple to say: start, start the switch and the electromagnetic switch directly connected to protect the start of the smooth, so the system provides a certain "big" current, so in such conditions easy to produce "spark", great harm, so In the starter line on the addition of "start relay", through its characteristics to "small current control high current" purposes. The base boot process is: Battery (+) → starter line → electromagnetic switch → field winding → armature winding → grounding → battery (-). So that the starter produces "electromagnetic torque" and let the engine start. The following are the same as the "
May 9, 2017
Conditions: Automotive control relays: at least to have to adapt to vibration, low temperature changes, high temperature changes, moisture, all kinds of oil, water erosion of these more "harsh environment", so the quality of production requires a certain degree of reliability, Small, low power consumption and long life characteristics, and also has: flame retardant, electromagnetic compatibility, stability and other properties. The following are the same as the " Types of: Starter relay: start by the relay contact (normally open) to control the starter "electromagnetic switch" line "on and off", start the switch by controlling the "starter relay" coil circuit to protect the purpose of the start switch, the current Common start-up relays are designed to protect the start switch design of the "single type" and the simultaneous protection of the switch and the starter (motor) of the complex relays.
May 9, 2017

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