First, let me briefly introduce the player - automotive wiring harness. It is to electrically connect each component in the car. It is the most basic physical condition for the realization of functions in the car. Due to the complexity of the vehicle circuit, it is necessary to consider the installation environment (the temperature in the engine compartment and the cabin is very different) and the use environment. Therefore, in the design and production process, it is particularly necessary to consider a series of problems that may be encountered in actual use of the car, such as temperature resistance, waterproofness, and vibration resistance.
Due to the rise of new energy vehicles, the low-voltage wiring harness that used to adapt to 12V can no longer meet the needs of high voltage electricity. High-voltage wiring harnesses came into being. Compared with low-voltage wiring harnesses, the high-voltage wiring harnesses in new energy vehicles mainly provide high-voltage and strong electricity to the vehicle, and are high-safety parts in new energy vehicles. High-voltage wiring harnesses have the characteristics of high voltage/high current and large wire diameter. At the same time, since high voltage is easy to cause electromagnetic interference, high-voltage wiring harnesses generally use shielded wires. According to regulatory requirements, the outer layer of the high-voltage wiring harness insulation needs to be used in a striking orange color to serve as a warning.

Some people think that high-voltage wiring harnesses will be the blue ocean of the wiring harness industry, but due to the limitations of the wiring harness itself, there are still many limitations. ① The lightweight wiring harness leads to the continuous compression of the wiring harness. As an important component of the whole vehicle, the automotive wiring harness accounts for 2% of the total weight of the vehicle, and the weight of copper wires in the automotive wiring harness accounts for 75%, so the major wiring harness manufacturers are currently launching aluminum wire solutions. At the same time, the OEM should also be committed to the research and development of controller integration to reduce the design of wiring.

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