Bridgold In EV Motor

With over 10 years of expertise in copper busbars, we possess in-depth knowledge of the stringent demands of EV motor controllers and inverters—high-frequency switching, surge currents, severe thermal cycling, and vehicle-induced vibration. From material selection and structural design to insulation withstand and temperature-rise validation, we offer customized solutions throughout the entire design cycle, strictly complying with AEC-Q and automotive industry standards.

Copper busbars deliver three core functions in power electronic systems:  High-current transmission  – connecting inverters to drive motors for efficient and stable power transfer;  Equipotential bonding and grounding  – equalizing enclosure and structural potentials while providing safe leakage protection paths;  Absorbing vibration and thermal expansion  – preventing rigid connections from fatigue failure due to temperature changes and road-induced shocks.

Laminated Busbars : Low parasitic inductance effectively suppresses IGBT/SiC turn-off overvoltage, protecting power devices; the flat structure significantly reduces enclosure depth and increases power density; custom L/Z shapes fit compact layouts.

Rigid Busbars : Manufactured from high-purity T2 copper via rolling or extrusion, offering extremely high current-carrying capacity and strong mechanical strength. With a fixed form, they are ideal for main-circuit busing connections, delivering superior cost-effectiveness for standardized mass production.