New energy vehicle harness

Automobile wires, also known as low-voltage wires, are copper multi-core flexible wires with common specifications of 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 4.0 and 6.0mm 2 The key is to look at the current value of the load, and use different specifications of wires for different power consumers. The harness of new energy vehicles is divided into the following:

1. Main wiring harness of car.

The main harness of the whole vehicle is usually composed of engine (ignition, electronic injection, power generation, starting), instrument, lighting, air conditioning, auxiliary electrical appliances, etc. The main harness is divided into many branch harnesses according to different purposes, positions and functions.

The main harness of the whole vehicle generally takes the instrument panel as the main part, extends forward and backward, and runs through the distribution of the whole vehicle. Generally, it can be divided into head harness (including instrument, engine, front light assembly, air conditioner, battery), tail harness (tail light assembly, license plate lamp, high-mounted stop lamp, trunk lamp), roof harness (door, roof lamp, loudspeaker), etc.

2. Car air conditioning harness.

Take the whole vehicle harness as an example: 0.5mm 2 The specification line is applicable to instrument lights, indicator lights, door lights, ceiling lights, etc; 0.75mm 2 The specification line is applicable to license plate lamps, front and rear small lamps, production lamps, etc; 1.0mm 2 The specification line is applicable to turn signal lamp, fog lamp, etc; 1.5mm2 specification line is applicable to headlamp, horn, etc; 10mm 2 The above specification lines are applicable to the engine.

3. Car switch harness.

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

4. Car lamp harness.

The materials and binding methods used on the surface of the harness are different according to the different parts of the harness. Due to the harsh working environment, the engine harness usually has to go through a long time of high temperature, wind and sun, rain, strength bumps and other special environments. In the design, the threaded tube with high flame retardance, waterproof and high mechanical strength is generally used for binding.

The working environment of the front cabin line of the car is also relatively poor. Most branches are wrapped with threaded pipes with good flame retardance, and some branches are wrapped with PVC pipes. The working space of the instrument line is small, and the environment is relatively good. The tape is fully wrapped or twisted.