Automotive wiring harness (an important component for providing stable power supply and signal transmission for automobile electrical system)

Automotive wiring harness is an important part of automobile electrical system, which provides stable power supply and signal transmission for automobiles. It consists of a plurality of wires, which are tied together by insulating sleeves or insulating tapes to form a whole. The function of automotive wiring harness is to transmit the power of power supply to all kinds of electrical equipment, and transmit the signal to the control module, so as to realize the normal work of various systems of the automobile.

Composition and structure of automotive wiring harness

Automotive wiring harness consists of wires, insulating sleeves, connectors and connectors. Wire is the core part of the wire harness, which undertakes the task of power and signal transmission. Insulating sleeve or insulating tape is used to tie wires together for protection and fixation. Connectors and connectors are important components for connecting wire harness and equipment, and power and signal transmission can be realized by plugging and unplugging.

Production technology in automotive wiring harness

The manufacturing process of automotive wiring harness includes design, peeling, weaving, welding, insulation, packaging and other steps.

Firstly, according to the design requirements of automobile electrical system, the length and layout of the wiring harness are determined. Then, the insulation layer of a certain length of the wire is stripped to expose the conductor part. Next, according to the design requirements, multiple wires are woven together and fixed with insulating sleeve or insulating tape. Pay attention to the insulation between wires when weaving to avoid short circuit and interference.

After weaving, the wires are welded to ensure the smooth transmission of power and signals. Then, the welding parts are insulated, and the welding points are wrapped with insulating tape or insulating sleeve to prevent leakage and short circuit.

Finally, the whole wiring harness is packed, and the wiring harness is completely wrapped with protective sleeve or protective belt for protection and fixation. Pay attention to the layout and direction of the wiring harness when packaging to avoid friction and interference with other components.

Maintenance and Troubleshooting of automotive wiring harness

The maintenance of automotive wiring harness is an important link to ensure the normal operation of the automobile electrical system. Check the connectors and connectors of the harness regularly to ensure that they are firmly fastened and free from looseness and corrosion. Check whether the insulation layer of the harness is intact, worn and cracked. If problems are found, replace or repair them in time.

When there is an electrical system fault in the car, it is necessary to troubleshoot the wiring harness. First, check whether the harness is loose or corroded. If there is any problem, fasten or replace the connectors and connectors in time. Then, check whether the insulation layer of the wiring harness is intact, worn and cracked, and repair or replace it if there is any problem. Finally, the resistance and short circuit of the wiring harness are tested with a testing instrument to find out the fault point and repair it.