With the continuous development and popularization of electric vehicle technology, the demand for waterproof pure electric vehicles is also gradually increasing. In waterproof pure electric vehicles, power lithium battery high voltage wiring harness and lithium battery BMS (battery management system) wiring harness play a vital role. The following describes their functions and importance:

1. Function of power lithium battery high voltage wiring harness:

(1) power transmission: Power lithium battery high-voltage wiring harness is an important part of connecting power lithium battery pack and electric drive system in electric vehicles. Its main function is to transmit electric energy and transfer the stored electric energy of power lithium battery pack to the electric drive system, drive the electric vehicle to run normally.

(2) safety protection: The high-voltage wiring harness of power lithium battery needs to have high insulation performance and high pressure resistance, so as to ensure that there will be no safety problems such as short circuit or leakage under high voltage conditions and ensure the safety of electric vehicles.

(3) waterproof and dustproof: In waterproof pure electric vehicles, the power lithium battery high-voltage wiring harness needs to have good waterproof and dustproof performance to cope with the working conditions in harsh environment and ensure that the wiring harness can deliver electric energy stably and reliably, extend the service life of wiring harness.

2. Function of lithium battery BMS wiring harness:

(1) monitor battery status: Lithium battery BMS harness is connected in power lithium battery pack for monitoringThe voltage, current, temperature and other parameters of the battery can grasp the working status of the battery in real time to ensure the safe operation of the battery pack.

(2) battery protection: The lithium battery BMS harness can intelligently manage and protect the battery according to the monitored battery status information, including overcharge protection, overdischarge protection, temperature protection, etc., effectively prolonging the service life of the battery.

(3) communication function: The lithium battery BMS harness also has the function of communicating with the vehicle-mounted control system. Through the harness, monitoring data and control instructions are transmitted to realize information interaction and coordination between the battery management system and other components of the vehicle.

Power lithium battery high-voltage wiring harness and lithium battery BMS wiring harness play a vital role in waterproof pure electric vehicles, among which power lithium battery high-voltage wiring harness is responsible for conveying electric energy, protecting safety, waterproof and dustproof, the lithium battery BMS harness is used to monitor the battery status, battery protection and communication functions. The two work together to ensure the stable operation of the electric automobile driveline and the safety performance of the battery.