1. Car main line bundle

The whole car owner wiring harness is usually composed of engine (ignition, electric injection, power generation, starting), instrument, lighting, air conditioning, auxiliary appliances, etc. According to the different uses, parts and functions of the main line bundle, there are many branch wiring harnesses.

The main vehicle bundle is generally based on the instrument panel, which extends before and after, and runs through the vehicle distribution. Usually can be divided into front wiring harness (including instrument, engine, front light assembly, air conditioning, storage battery), tail wiring harness (taillight assembly, license plate light, high brake light, trunk light), roof wiring harness (door, top light, sound box) and so on.

2, car air conditioning wiring harness

0.5mm² specification line is suitable for instrument lamp, indicator lamp, door lamp, ceiling lamp, etc. 0.75mm² specification line is suitable for license plate lights, front and rear small lights, production lights, etc. The 1.0mm² specification line is suitable for turn signals, fog lamps, etc. 1.5mm² line is suitable for headlights and horns; The 10mm² gauge line is suitable for the above engines.

3. Automobile switch wiring harness

To facilitate identification and correction of all terminals on the harness, marked numbers, letters, and wires are usually used as connection objects. When the operator sees the mark on the harness, they can correctly connect to the corresponding wire and electrical equipment. This sign is very convenient for repair or replacement of wiring harnesses. In addition, it is a simple sign to distinguish the same circuit by the same wire color.

4. Car light wiring harness

Different materials and bandaging methods are used on the surface of the harness according to the different parts used. Due to the harsh working environment, the engine wiring harness usually needs a long time of high temperature, wind and sun, rain and other special environment, such as strength bumps, in the design of the general use of high flame retardant, waterproof, threaded pipe bandage high mechanical strength materials.

The working environment of the car front cabin line is also relatively poor, most of the branches are wrapped with good flame retardant threaded pipe, some branches are wrapped with PVC pipe. Instrument line working space is small, the environment is relatively good, the use of tape wrapped or flower wrapped; The door line and canopy line have small working space and can be completely wrapped with tape, and some branches can be wrapped with industrial plastic sheets; Thinner canopy wire can be attached directly to the car with sponge tape; Since the chassis wire has more contact with the body, it can be wrapped with bellows to prevent the wire harness from wearing out.