The function and composition of automobile electrical equipment

Electrical equipment is an important part of the automobile. It provides power for the car, and is responsible for the ignition and startup of the engine, as well as the lighting and signal of the car. It plays an important role in guaranteeing the technical performance and safe driving of the automobile.

The electric equipment of a car is mainly composed of the following parts:

1. power supply section. Including Baotou North run heavy card accessories battery, generator and regulator, and so on, providing power for the electric equipment of the car.

2. starting line. It includes starting machine, starting relay, etc. its function is to start the engine.

3. ignition system. It includes distributor, Baotou Bei Ben heavy truck accessories ignition coil, ignition switch, spark plug and so on. Its function is to generate electric spark and ignite the combustible mixture in the cylinder.

4. lighting signal equipment. It includes lighting, signal lamp, horn and so on. Its function is to provide lighting and all kinds of signals for vehicle driving, so as to ensure the safety of driving.

5. instrument. Including Baotou North run heavy card accessories fuel meter, oil pressure meter, water temperature meter, ammeter and so on, belongs to the vehicle monitoring equipment.

6. auxiliary equipment. It includes electric wiper, warm air conditioner, sound equipment and so on.

Two. Characteristics of automobile electrical equipment

1. low voltage. The rated voltage is 12V or 24V, the gasoline car is generally 12V power, and the diesel car is generally 24V power.

2. DC current. AC generator is converted into DC power output, which is easy to charge to the battery.

3. single line system. Only one wire is used from the power supply to the electric equipment, the other is replaced by the metal part of the body.

4. negative ground. All kinds of cars should be designed for the negative electrode, in order to avoid the battery reverse polarity, resulting in transistor element electrical burn.