The high-voltage wire harness industry chain mainly includes upstream high-voltage cable and connector manufacturers, mid-stream high-voltage wire harness manufacturers, and downstream vehicle companies.

Automobile wiring harness, especially high-voltage wiring harness, is the neural network system of the car. The high-voltage wiring harness is responsible for the connection of high-voltage electronic components in automobiles and can provide stable power and signal transmission. It is an indispensable system-level component of the entire vehicle.

New energy vehicle high-voltage wiring harnesses are mainly used to connect high-voltage equipment such as power batteries, drive motors, on-board chargers, DC/DC converters, high-voltage distribution boxes, electric compressors, and PTCs.

From the perspective of specific applications, high-voltage wire harnesses can be used to connect power batteries and high-voltage control boxes, high-voltage control boxes and motor controllers, fast charging ports and high-voltage control boxes, slow charging ports and chargers, etc., and are responsible for transferring power from the power distribution box to It transmits electric energy with high quality and efficiency, and plays a shielding role in shielding external signal interference.

High-voltage wire harnesses have large currents and high electric field strengths. They usually adopt a multi-core structure design and generally require additional shielding layers such as tinned copper wire braiding. This is also to meet electromagnetic shielding EMC requirements. In order to ensure that the inner layer of the wire harness is not affected by mechanical system damage and chemical corrosion, it is usually necessary to add an additional insulation layer to extend its service life.

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