Automotive five-segment connection high-voltage wiring harness details

China [CN]

The output current of the vehicle power battery depends on the design and configuration of the power battery, the electric drive system of the electric vehicle, and the load requirements of the vehicle. Under normal circumstances, the power battery output current of electric vehicles is between several hundred amps and one thousand amps. Different electric vehicle manufacturers and models use different battery technologies and battery pack configurations, so their output current will vary.

Among them, the automotive high-voltage wiring harness is an important part of the automotive electrical system, which connects various electrical devices together to transmit high-voltage electrical energy. The following is a detailed explanation of five segments of automotive high voltage wiring harnesses:

The internal high voltage wiring harness of new energy vehicles is mainly divided into five segments:

1: Power battery High-voltage cable: Connects the power battery to the high-voltage box cable. There are four feet at the end of the wire harness high voltage box, which are respectively in contact with the positive and negative terminals of the power supply, and two feet and interlock line short. The two feet of the power battery are respectively connected to the positive and negative terminals of the power supply, and the interlock terminal is connected to the middle position.

2: Motor controller cable: Connect the cable between the high voltage box and the motor controller.

3: One end of the harness is connected to a high voltage box, and the other end is different from the power battery high voltage cable, which is two single-core plug-ins, respectively connected to the positive and negative poles of the motor controller.

4: Fast charging harness: one end is connected to the high voltage box, and the other end is connected to the vehicle fast charging port.

5: Slow charging harness: one end is connected to the slow charging port, and the other end is connected to the car charger.

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