Copper Braid Flexible Bus Bar
Copper Braid Flexible Bus Bars are a highly reliable conductive connection component widely used to meet such engineering needs. This product employs a high-purity copper wire braided structure, forming highly conductive terminals through pressure welding or cold pressing processes, achieving a combination of flexible connection and high current transmission. Its structure effectively absorbs mechanical vibration, compensates for installation errors, and establishes a stable and safe electrical path between battery systems, power modules, and electrical equipment. For new energy vehicle battery packs, electric drive systems, energy storage battery cabinets, and high-power electrical equipment, copper braided flexible buses are not only conductive connectors but also key structural components for improving system stability and safety.
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Product Introduction
Copper braid flexible bus bars are made of thousands of ultra-fine diameter electrolytic copper wires, interwoven using a high-precision braiding machine. Unlike traditional rigid busbars, they maintain high cross-sectional area conductivity while possessing near-cable-like physical flexibility.
1. Multi-dimensional Displacement Compensation: Due to its unique braided structure, this product can move freely in horizontal, vertical, and torsional directions. This "multi-dimensional flexibility" perfectly compensates for installation misalignments and absorbs structural vibrations caused by equipment operation.
2. Highly Efficient Surface Area Heat Dissipation: The fine mesh formed by the braided structure greatly increases the equivalent surface area of the conductor. Compared to solid copper busbars of the same cross-sectional area, braided connectors have superior heat convection efficiency, effectively reducing temperature rise during continuous high-current operation.
Material Advantages: The purity and toughness of electrolytic copper are the cornerstones of its performance.
High-purity electrolytic copper (T2/C11000)
Copper content ≥ 99.95%. This not only ensures extremely low DC resistance but also imparts excellent ductility to the copper wire, ensuring no metal fatigue fracture after millions of bending tests for flexible busbars.
Precision tin/nickel plating
For the harsh environments of new energy battery packs and coastal wind power, we provide uniform surface treatment. The plating not only improves oxidation resistance but also enhances the contact points' resistance to electrochemical corrosion.
Lead-free compliance
All materials fully comply with RoHS and REACH environmental directives, meeting the requirements for global green supply chain access for braided copper wire.
Manufacturing Process and Advantages: Industrial-Grade Consistency Guarantee
| Automated Braiding and Tension Control | We have introduced multiple high-speed automated braiding machines equipped with a precise tension feedback system. During the braiding process, the tension of each copper wire remains highly consistent. This avoids the "snake-like" twisting or uneven tightness of the braided thread caused by uneven tension, ensuring that the resistance value and outer diameter of each meter of product strictly conform to the drawing tolerances, facilitating automated assembly for customers. |
| Ultrasonic Cleaning Process | During the braiding process, trace amounts of grease or dust may remain on the copper wires, which is a fatal hazard in high-voltage, high-current applications. We have introduced an ultrasonic cleaning process before crimping to thoroughly remove microscopic contaminants from the copper wire surface, eliminating the possibility of electrochemical corrosion and poor contact at the source. |
| Laser Etching and Full-Process Traceability | To meet the quality traceability needs of high-end customers, we offer laser etching services on the terminal surface, which can mark the model number, batch number, and even QR codes. Each flexible connector has its own unique "identity card". In case of any abnormality, it can be quickly traced back to the raw material batch and the production machine, which greatly reduces the customer's quality management risk. |
Design Advantages: Engineering Thinking Permeates Every Detail
Flexible Compensation Design
To address the thermal expansion and contraction of the battery pack during charging and discharging, the braided structure can absorb ±15% of length changes, preventing stress cracking caused by rigid connections.
Modular Interface Design
Standardised connection dimensions at both ends ensure compatibility with mainstream battery module mounting holes, reducing production line modification costs for customers.
Space Optimisation Design
Compared to traditional copper busbars, braided flexible connectors are flexible and foldable, enabling more flexible wiring paths within the limited battery pack space and avoiding electromagnetic interference caused by wire congestion.
Safety Redundancy Design
The braided structure has "multi-path conductivity" characteristics; even if a local copper wire breaks, current can still be transmitted through other paths, preventing instantaneous failure and providing a fault buffer time for the system.
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If you are sourcing Braided Copper Ground Strap solutions for EV battery systems or high-current electrical equipment, our engineering team can support custom structural design and reliable manufacturing solutions tailored to your project requirements.
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