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Flexible Copper Braided Wires

Flexible Copper Braided Wires
Copper Braided Mesh

Copper Braided Mesh
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Copper Shielding Wires
Square Copper Braided Wires

Square Copper Braided Wires
Flexible Copper Stranded Wires

Flexible Copper Stranded Wires
Insulated Flexible Copper Stranded Wires

Insulated Flexible Copper Stranded Wires
Hard Drawn Copper Stranded Wires

Hard Drawn Copper Stranded Wires
Stainless Steel Braided Wires

Stainless Steel Braided Wires
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Aluminum Braided Wires
Highly Flexible Stranded Copper Wire

Highly Flexible Stranded Copper Wire
Bridgold In EV Motor
Bridgold In EV Motor
Bridgold In EV Motor
Bridgold In EV Motor
Bridgold In EV Motor
Bridgold In EV Motor

Bridgold: Leading China Suppliers of EV Motor Components from a High-Tech Factory for New Energy Vehicles

China's Leading Digital & Modern Factory Overview

Bridgold proudly presents its state-of-the-art Phase II facility, covering 15,000 m², which was launched in October 2023. This advanced factory seamlessly integrates digital management and intelligent production systems to guarantee full traceability, exceptional precision, and consistent quality. As one of the top suppliers of power electronics components for new energy vehicles in China, our robust capabilities enable us to meet high-volume delivery demands efficiently.

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    Product Details

    Deep Experience in EV Motor & Power Electronics

    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.

    Product Display

    EV motor (1)
    EV motor (2)

    Product Details (Core Functions of Copper Busbars)

    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 & Grounding

    Equalizing enclosure and structural potentials while providing safe leakage protection paths.

    Absorbing Vibration & 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.

    Frequently Asked Questions

    Q What are the main functions of copper busbars in EV motor controllers?
    Copper busbars perform three primary roles: providing high-current transmission between inverters and drive motors, ensuring equipotential bonding and grounding for structural safety, and absorbing thermal expansion and mechanical vibration during vehicle operation.
    Q How do laminated busbars help protect IGBT and SiC power modules?
    Laminated busbars feature extremely low parasitic inductance, which effectively suppresses turn-off voltage spikes on IGBT and SiC devices, preventing overvoltage damage while enhancing system power density.
    Q What material is used for rigid busbars and where are they applied?
    Rigid busbars are fabricated from high-purity T2 copper using rolling or extrusion processes. They offer high mechanical strength and high current capacity, making them ideal for standardized main-circuit bus connections.
    Q How do your busbar designs withstand severe vehicle vibration and thermal cycling?
    Through rigorous structural design, flexible geometries, and proven material selection, our busbars absorb dynamic mechanical shocks and thermal expansion, preventing fatigue failure and meeting AEC-Q and automotive durability standards.
    Q Can custom shapes and configurations be designed for compact inverter layouts?
    Yes, full customization is available throughout the design cycle, including custom L-shape and Z-shape multi-layer configurations, insulation withstand profiling, and temperature-rise validation for compact vehicle spaces.