Functions of High-Voltage Wiring Harnesses

High-voltage wiring harnesses play a vital role in new energy vehicles. Their main functions and features include:

Signal Distribution and Efficient TransmissionHigh-voltage wiring harnesses accurately distribute commands from the power distribution box to various vehicle components such as DC/DC converters, chargers, motors and inverters, ensuring efficient power flow.

Interference ShieldingDesigned for excellent shielding performance, they effectively block external electromagnetic interference and maintain stable operation of electronic systems.

Core Component of System ConstructionTogether with connectors, high-voltage wiring harnesses form the high-voltage connection system to ensure normal system operation.

Meeting High-Voltage and High-Current RequirementsThey are designed to handle high-voltage and high-current transmission. Electric vehicle drive voltages typically range from 550V to 750V, while the harnesses can withstand up to 1000V.

Electromagnetic Radiation Resistance Equipped with electromagnetic shielding structures, they use coaxial inner and outer conductors to contain electromagnetic radiation and prevent interference with electronic components.

High Temperature Resistance and Flame Retardancy Made of high-temperature-resistant materials, they withstand ambient temperatures from -40℃ to 85℃ and operating temperatures up to 125–150℃.

Excellent Sealing Performance They feature high sealing and waterproofing with an IP68 protection rating to adapt to diverse working conditions.

Power and Signal Transmission They transmit high-voltage power and signals, connecting battery packs, motors, electronic control units and other power components for safe and efficient power delivery.

Voltage Withstanding Capability They can withstand the operating voltage of power batteries, usually 400V, 600V or even 800V, to prevent short circuits and breakdowns.