Pic. 7.1. Mazda 6 power supply system: 1 - rechargeable battery; 2 – alternating current generator; 3 - starter; 4 - ignition coil; 5 - spark plug; 6 - high voltage wires
WITH «positive» consumers are connected to the power source by a wire, and with «negative» - through the body of the car («mass»). This method reduces the number of wires and simplifies installation.
The electrical equipment system consists of a storage battery, a generator, a starter, electricity consumers and electrical circuits.
Lighting fixtures include headlights, taillights, fog lights, direction indicators, license plate lights, and interior lights.
The battery is charged by the alternator, which is driven by a belt from the crankshaft pulley.
The starter is a mixed-excitation DC motor with an electromagnetic traction relay. When starting, the traction relay engages the pinion gear with the flywheel ring gear before the starter is powered by the battery. After starting the engine, the freewheel disconnects the starter armature from the flywheel ring gear.
It should be noted that to prevent short circuits and burns, always disconnect the wire from the negative terminal of the battery when working with any element of the vehicle's electrical equipment.