The automobile harness is the main body of the automobile circuit network. Without the harness, there would be no automobile circuit. The harness refers to the components that connect the circuit by binding the contact terminal (connector) made of copper and crimping the wire and cable with plastic pressing insulator or external metal shell. The wire harness industry chain includes wire and cable, connector, processing equipment, wire harness manufacturing and downstream application industries. The wire harness is widely used in automobiles, household appliances, computers and communication equipment, various electronic instruments and meters, etc. The body wire harness connects the whole body, and its general shape is H-shaped.
The common specifications of wires in automotive wiring harnesses are nominal cross-sectional area of 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 4.0, 6.0 and other square millimeters of wires, each of which has a allowable load current value, with different power of electrical equipment wires. Taking the vehicle wiring harness as an example, the 0.5 specification line is suitable for instrument lights, indicator lights, door lights, overhead lights, etc.; The 0.75 specification line is suitable for license plate lights, front and rear small lights, brake lights, etc.; The 1.0 specification line is suitable for turn signals, fog lights, etc.; 1.5 specification line is suitable for headlights, horns, etc.; Main power lines such as generator armature wires, tie wires, etc. require 2.5 to 4 square millimeters of wire.
The automotive connector market is one of the largest segments of the global connector market. At present, there are more than 100 types of connectors needed for automobiles, and the number of connectors used for a car is up to hundreds. In particular, new energy vehicles are highly electrified, and the internal power current and information current are complex. Therefore, the demand for connectors and wire harness products is higher than that for traditional vehicles. Benefiting from intelligence+new energy, automobile connectors will enjoy rapid development. With the rapid development of automotive electronics, the connection between control units is getting closer and closer, and the number of connectors used for signal transmission is growing; The power system of new energy vehicles and the wire control chassis of intelligent vehicles also have a rapidly growing demand for connectors for distributing current. It is estimated that the scale of the global automotive connector industry will increase from 15.2 billion dollars to 19.4 billion dollars in 2019-2025.
Post time: Nov-21-2022