Introduction to the Classification of Wiring Harnesses in New Energy Vehicles

As the automotive industry continues to shift towards electrification and sustainability, new energy vehicles (NEVs) are becoming increasingly popular. NEVs are powered by alternative energy sources such as electricity, hydrogen, and hybrid systems. One of the critical components in NEVs is the Wiring Harness, which is responsible for transmitting power and data between various electrical components. In this article, we will introduce the classification of wiring harnesses in NEVs.

1. High Voltage Wiring Loom
High voltage wiring assemblies are used in electric and hybrid vehicles to transmit high voltage power from the battery to the motor and other electrical components. These wire harnesses are designed to handle high voltage and current, and they are typically color-coded in orange to indicate their high voltage status. High voltage wire looms are usually shielded to prevent electromagnetic interference and ensure safety.

2. Low Voltage Wire Assembly
Low voltage cable harnesses are used to connect low voltage electrical components such as lights, sensors, and entertainment systems. These cable looms are designed to handle lower voltage and current, and they are typically color-coded in black or blue. Low voltage cable assemblies are usually unshielded and are less complex than high voltage wiring harnesses.

3. Communication Wiring Harnesses
Communication wiring harnesses are used to transmit data between various electrical components in NEVs such as the battery management system, motor control unit, and infotainment system. These wiring harnesses are designed to handle low voltage and are color-coded in green or white. Communication wiring harnesses are typically shielded to prevent interference and ensure reliable data transmission.

4. Charging Wiring Harnesses
Charging wiring harnesses are used to connect the NEV to a charging station or home charging unit. These wiring harnesses are designed to handle high voltage and current and are color-coded in blue or green. Charging wiring harnesses are typically shielded to prevent electromagnetic interference and ensure safety during charging.

In conclusion, NEVs require different types of wiring harnesses to transmit power and data between various electrical components. High voltage wiring harnesses are used to transmit high voltage power, low voltage wiring harnesses are used to connect low voltage electrical components, communication wiring harnesses are used to transmit data, and charging wiring harnesses are used to connect to charging stations. Understanding the classification of wiring harnesses is essential for designing, manufacturing, and maintaining NEVs.