1. Car main line bundle.

The main vehicle bundle is usually composed of engine (ignition, electric injection, power generation, starting), instrument, lighting, air conditioning, auxiliary electrical appliances and so on. According to the purpose, position and function of the main line bundle, there are many branch wiring bundles. The main vehicle bundle generally takes the instrument panel as the main part, extends front and back, and runs through the vehicle distribution. Usually, it can be divided into the front wiring harness (including instrument, engine, front light assembly, air conditioning, storage battery), rear wiring harness (taillight assembly, license plate light, high brake light, trunk light), roof wiring harness (door, overhead light, sound horn), etc.

2, car air conditioning wiring harness.

Take the vehicle wiring harness as an example :0.5mm² specification line is suitable for instrument lights, indicator lights, door lights, ceiling lights, etc. 0.75mm² specification line is suitable for license plate lights, front and rear small lights, production lights, etc. 1.0mm² specification line is suitable for turn signals, fog lamps, etc. 1.5mm2 cable is suitable for headlights, horns, etc. Lines above 10mm² are suitable for engines.

3. Automobile switch wiring harness.

In order to facilitate identification and error correction, each end of the wire harness is usually marked with numbers and letters to indicate the connection object of the wire. When the operator sees the mark on the wire harness, he can correctly connect to the corresponding wire and electrical device. Such a sign is very convenient for repairing or replacing wiring harnesses. In addition, the same circuit with the same wire color to distinguish is a simple sign.

4. Car headlight wiring harness.

Wire harness surface according to its use of different parts, the use of materials and dressing methods are different: engine wire harness due to bad working environment, usually to experience a long time high temperature, wind and sun, rain, strength and other special environment, in the design of the general use of high flame retardant, waterproof, high mechanical strength threaded pipe dressing. Car front cabin line working environment is also relatively poor, most of the branches with good flame retardant thread pipe bandaging, part of the branch using PVC pipe bandaging. Instrument line work space is small, the environment is relatively good, the use of tape wrapped or flower wrapped. Door line and canopy line work space is small, can be wrapped with tape, part of the branches can be wrapped with industrial plastic cloth; The thinner canopy line can be attached directly to the car with sponge tape. Because the chassis line is in contact with the body of the car, so the bellows are wrapped to prevent the harness from wearing.