In the battery pack, drive motor, and electronic control module of new energy electric vehicles, copper wire flexible connectors play a key role in current transmission. Which types of applications are more common in the face of driving vibrations, high current loads, and temperature changes?
1、 Copper braided wire flexible connector: a conductive adaptation scheme under vibration conditions
The flat structure woven with multiple strands of thin copper wire combines flexibility and conductivity. The mesh structure buffers the vibration and impact of driving, reducing the risk of connection breakage; The large conductive cross-section provides a stable channel for the transmission of battery modules, reducing energy loss. Surface tin plating treatment enhances corrosion resistance and adapts to humid environments in battery compartments.
2、 Copper stranded wire flexible connector: multi scenario adaptation selection for mechanics and conductivity
Copper stranded wires made by twisting process are divided into hard and soft states. Hard copper stranded wire is suitable for fixing components such as battery pack frame support due to its tensile strength; Soft copper stranded wire adapts to dynamic scenarios with high ductility, such as the active connection between motors and electronic controls, and can work stably in environments ranging from -40 ° C to 120 ° C. The tin plating layer enhances aging resistance.
3、 Selection criteria for copper wire flexible connections in tram scenarios
In battery module interconnection, copper braided wire with low impedance is suitable for fast charging and high current; The motor is connected to the electronic control, and the flexible copper stranded wire can cope with component displacement; In the grounding circuit, tinned copper stranded wire can quickly dissipate abnormal currents and also has electromagnetic shielding function.
