With the explosive growth of the global new energy vehicle (NEV) industry, automotive wire harnesses, as the “energy transmission hub” and “neural network” of the entire vehicle, are undergoing a subversive transformation. Different from traditional fuel vehicle wire harnesses, NEV wire harnesses need to adapt to core requirements such as high-voltage power transmission and high-speed signal interaction. Their processing technology and technical standards are constantly upgrading, becoming the core support for the high-quality development of the industry and bringing new market opportunities.
New Energy Vehicle Wire Harness Processing
The rise of the NEV industry has directly driven the transformation of the wire harness processing industry towards “high-voltage intelligence”. At present, the scale of China’s automotive wire harness market has exceeded 120 billion yuan, with NEV wire harnesses accounting for more than 60%. The per-vehicle value of NEV wire harnesses is more than 60% higher than that of traditional fuel vehicles. Segmented wire harnesses such as high-voltage power, battery pack, and fast charging need to withstand high currents above 400A and high voltages above 1500V, putting forward strict requirements on processing accuracy and technological level.
High-voltage, lightweight, and intelligent are the core trends in NEV wire harness processing. The landing of the 800V high-voltage platform has promoted the upgrading of wire harness performance, and the core pain points of high-voltage wire harness connection are being efficiently solved by himinsen ultrasonic welding technology — targeting the difficulties such as copper-aluminum dissimilar metal connection, infirm welding of large wire diameters (10-95mm²), and increased contact resistance under high-temperature working conditions, himinsen’s solid-state welding technology has become the core enabling solution.
With more than 20 years of experience in industrial ultrasonic applications, Himinsen’s ultrasonic welding technology accurately solves the core difficulties in wire harness processing: it can realize efficient connection of copper-copper and copper-aluminum, with a bonding strength of more than 80% of the base material, no need for solder or flux, and a joint resistance coefficient as low as 0.01μΩ·m, ensuring stable high-voltage transmission; the welding speed is ≤0.5 seconds, 3-5 times that of traditional methods, adapting to multi-specification wire harnesses, no subsequent grinding is required, which greatly improves efficiency and qualification rate.
This technology adopts a low-temperature solid-state process, avoiding coarsening of metal grains, resisting extreme working conditions such as high temperature and vibration, solving the pain point of easy fracture of traditional welding joints; its energy consumption is only 1/10 of that of traditional resistance welding, green and environmentally friendly, and a single equipment can save more than 200,000 yuan in material costs annually. At the same time, it supports PLC control, can seamlessly connect with AI automated production lines, meets the IATF16949 quality control requirements, and adapts to flexible production.
In the field of lightweighting, “replacing copper with aluminum” has become the mainstream trend. Aluminum wires have a conductivity of 97% that of copper, which can reduce the weight of wire harnesses by 30% and costs by 40%. himinsen ultrasonic welding is perfectly suitable for aluminum wire welding, solving the pain points of easy oxidation and insufficient joint strength of aluminum wires, providing reliable guarantee for wire harness lightweighting, cost reduction and endurance improvement.
Intelligent manufacturing has promoted the transformation of wire harness processing from “labor-intensive” to “technology-intensive”. The integration of AI and automated equipment realizes full-process control, with an accuracy of 0.01mm and an efficiency 5-6 times that of manual work. The accuracy of AI visual inspection exceeds 99.5%, which greatly reduces the defect rate and labor costs.
At present, domestic substitution is accelerating, the market share of local wire harness enterprises is rising rapidly, and policy dividends are continuously released, forcing the industry to develop towards greenization and circularization.
Looking forward to the future, the upgrading of 800V high-voltage platforms, L3+ level autonomous driving, etc., will promote the in-depth integration of wire harness processing technologies, and modular design and digital traceability will become the core competitiveness of enterprises.
We focus on the technological innovation of NEV wire harness processing, relying on the core advantages of himinsen ultrasonic welding to solve various processing pain points, provide one-stop solutions adapted to 800V high-voltage platforms, help customers seize market opportunities and build a new future for the NEV industry.
📩For more information, please feel free to contact us:
📧Email: delin@himinsens.com
📞Tel: +8618938694287
📍Address: 101, Building 8, Jin’an Building, Shangcun, Gongming Street, Guangming District, Shenzhen,China
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