Busbar is a multi-layer composite structure connector with repeatable electrical performance, low impedance, anti-interference, space saving, and quick assembly.This kind of high-power modular connection structure component is commonly called a connector. Busbar is widely used in brushless motors in the automotive industry, frequency conversion home appliances, and high-end medical equipment. It can also be used in such three core components of new energy vehicles as drive motors, electronic controls, and batteries. Here we call them automotive connectors.