The combination of wires, connectors, and seals is undergoing a quiet revolution, transitioning from traditional connection functions to intelligent, safe, and efficient solutions. In late August 2025, the wiring harness industry saw a series of technological breakthroughs. Several companies unveiled their latest patent achievements, covering key areas such as battery harness sealing, automotive harness heat dissipation, and automated connection devices.
Hao Peng Technology received a utility model patent authorization for "Battery Harness Structure and Battery," enhancing the stability and sealing of wire-to-connector connections.
Jiangsu BOM Tech introduced a new type of automotive harness rubber sleeve, achieving rapid heat dissipation while maintaining seal integrity, thereby solving the industry's long-standing problem of heat accumulation at the wiring terminals of automotive harnesses.
01 Technological Innovation: Breakthroughs in Sealing and Heat Dissipation Solutions
The technological innovation in the wiring harness industry is evolving from a single connection function to multi-functional integration. Recently, new solutions have been developed for two traditional pain points: sealing and heat dissipation.
Hao Peng Technology's Battery Wiring Harness Structure Patent
Hao Peng Technology's battery wiring harness structure patent uses a combination design of connectors, wires, protective sleeves, and first-level sealing components, significantly enhancing the stability and sealing performance of the battery wiring harness.
Jiangsu BOM Technology's Innovative Application of Tension Springs
Jiangsu BOM Technology has innovated by applying tension springs to the rubber sheath of automotive wiring harnesses. When the connection point generates a significant amount of heat, the sheath can be pulled to separate the docking ring and the fixing ring, allowing for heat dissipation. This operation is simple and the sealing state can automatically recover.
Qingdao Xuan Ying Electronics Co., Ltd. Focus on Armor Band Dispersal Issues
Qingdao Xuan Ying Electronics Co., Ltd. focuses on the issue of armor band dispersal during the wiring harness processing. The company has applied for a patent for a multi-purpose wiring harness processing device. This device uses a pressing shaft to create indentations on the armor band at the tail end of the multi-purpose wiring harness, increasing the friction between the armor bands. Combined with an adhesive for auxiliary fixation, this effectively reduces the occurrence of dispersion.
02Manufacturing Efficiency: Automation Equipment Becomes a Trend
In the field of wire harness manufacturing, automation is becoming a key driver for enhancing efficiency. The patent application by Hui'an Teng Electronics Co., Ltd. for an automatic connection device for automotive wire harnesses and terminal blocks demonstrates the industry's shift towards intelligent manufacturing.
The device employs a combination of electric conveyor belts, material feeding stations, electric suction cups, and parallel grippers. It uses a vision camera to automatically pick up and precisely position the wire harnesses and terminal blocks, replacing the traditional manual methods of material handling and alignment.
The patent design includes grooves for placing terminal blocks and at least four rectangular through-slots within the placement board for positioning the wire harnesses. This allows for the simultaneous processing of multiple sets of wire harnesses and terminal blocks in batch operations, significantly improving production efficiency.
03Industrial Ecosystem: Exhibitions and Forums Promote Exchange
The thriving development of the wire harness industry is also evident in related exhibition activities. The 2025 Wuhan International Connector, Cable, and Wire Harness Processing Equipment Exhibition will be held from October 11-13 at the Wuhan International Expo Center.
Themed "Intelligent Connectivity for All, Empowering the Future," the exhibition will comprehensively showcase the latest achievements in connectors, cables, wire harness processing equipment, and intelligent manufacturing technologies, injecting strong momentum into the global manufacturing industry's intelligent transformation.
During the event, more than 10 high-level activities will be held, including the 2025 Connector and Wire Harness Technology Innovation Forum, the Intelligent Manufacturing and Supply Chain Optimization Summit, and the New Energy Wire Harness Application Seminar. Experts and leading enterprises from countries such as Germany, Japan, and the United States will be invited to participate in discussions.
04 Market Prospects: Growth Driven by New Energy and Robotics
The growth drivers for the wiring harness industry primarily come from emerging sectors such as new energy vehicles and robotics. According to Wanma Corporation's semi-annual report, in the first half of 2025, the company achieved a revenue of 9.272 billion yuan, representing a year-on-year increase of 8.58%, with a net profit of 250 million yuan, up 21.8% year-on-year. The company has established a stable competitive advantage in the high-end wire and cable product market, ranking among the "Top 10 Most Competitive Enterprises in China's Wire and Cable Industry" for seven consecutive years.
Wanma Corporation has made breakthroughs in the field of embodied intelligent equipment cables. Since 2024, it has successively collaborated with multiple robot and robotic dog companies on its self-developed "Robot Intelligent Connection CCa System," with some customers already achieving monthly bulk supply. The certification cycle for industrial robot customers typically takes 1-2 years, and the technical requirements for cables used in embodied robots are even higher. As a result, manufacturers often engage in pre-development collaboration with cable suppliers, which suggests that this sector may develop higher customer stickiness.
05Regional Layout: Wuhan Rises as an Industrial Hub
Wuhan is emerging as a center of innovation for the connector and wire harness industry in China. As a central industrial and technological hub, Wuhan leverages its well-established manufacturing supply chain and supportive policies to attract numerous automotive companies, electronic device manufacturers, and technology suppliers.
The 2025 Wuhan International Automotive Wire Harness and Connector Industry Exhibition is expected to cover an exhibition area of 30,000 square meters, attracting over 40,000 professional visitors. The exhibition will feature a wide range of products, including terminal connectors, waterproof connectors, RF coaxial connectors, rectangular connectors, and automotive wire harness processing equipment, covering almost the entire supply chain of the wire harness and connector industry.
Wuhan's geographical advantages and industrial foundation provide a favorable environment for the development of the connector and wire harness industry, positioning it to further solidify its strategic role in the national and global connector and wire harness market.
06 Technology Integration: Expansion of Ultrasonic Welding Applications
Innovation in technology is not limited to the wire harnesses themselves but also includes innovations in processing techniques. Jiaocheng Ultrasonic has made significant progress in ultrasonic equipment for wire harness connectors. The company is actively developing high-power and ultra-high-power ultrasonic systems, capable of welding large-diameter copper and aluminum wire harnesses with a cross-sectional area of over 185 square millimeters. These systems are suitable for various welding applications, including wire-to-wire, wire-to-terminal, and terminal-to-terminal connections.
Jiaocheng Ultrasonic's high-power ultrasonic torsion welding machine has successfully broken the foreign monopoly and received formal orders from customers. The company has expanded its customer base to include well-known clients such as LEONI, TE Connectivity, Aptiv, Amphenol, Sumitomo, BYD, and Zhonghang Optic-Electronic.
As the penetration rate of high-voltage platforms continues to rise and safety concerns drive the transition from crimping to welding, domestic enterprises are achieving a leapfrog development over foreign companies like Schunk of Germany.
