Bridgold In EV Control System

With over 40 years of expertise in copper busbars and braided wires, we possess in-depth knowledge of the challenges faced by EV control systems (inverters, OBC, DC/DC, PDU, etc.)—high-frequency switching noise, limited enclosure space, severe thermal cycling, and road-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 automotive industry standards.

Copper busbars deliver three core functions in EV control systems:  High-current transmission  – connecting inverters and 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 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.

Braided Busbars : Ultimate flexibility with an extremely small bending radius, absorbing complex vibrations and displacements between modules; the braided structure distributes stress to resist high-frequency fatigue; the open surface area enhances heat dissipation; high tolerance greatly simplifies assembly.

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