Zhong Guo Qi Che Bao Wang·2025-05-26 10:09Core Insights - The transition to electric vehicles (EVs) is driven by global energy transformation and carbon neutrality goals, with flat wire motors emerging as a key technology in the EV sector [2][3] - Flat wire motors have surpassed traditional round wire motors due to their high power density, low losses, and strong heat dissipation capabilities, marking a significant shift in the electric drive system landscape [2][3] Industry Developments - The development of flat wire motors has been accelerated by policy support, market demand, and technological breakthroughs, with significant contributions from government subsidies and carbon emission regulations [3] - The global competitive landscape has shifted from foreign companies like Bosch and Nidec to the rapid rise of Chinese firms such as BYD and Xiaomi, which have introduced advanced technologies in flat wire motors [3] Technological Innovations - Breakthroughs in materials, such as the domestic production of rare earth permanent magnets, have significantly reduced costs and improved performance, enhancing the power density of motors [4] - The application of carbon fiber rotors has led to a 40% weight reduction compared to traditional steel rotors, with multiple manufacturers adopting this technology [4] Design and Manufacturing Advances - The design of flat wire motors has improved significantly, with slot fill rates increased to 75%-80%, resulting in over 30% improvement in copper wire filling efficiency [5] - Domestic companies have overcome challenges in insulation coatings and forming processes, enabling large-scale production and cost advantages [6] Thermal Management and Cooling Technologies - Cooling technologies have evolved from passive to intelligent temperature control systems, significantly enhancing heat dissipation efficiency [7] - Huawei's intelligent oil cooling technology exemplifies advancements in thermal management, optimizing energy consumption through real-time adjustments [7] Future Outlook - The evolution of flat wire motors represents a leap in China's automotive industry, showcasing a shift from following to leading in global automotive power technology [10] - The integration of energy, information, and thermal management systems in future electric drive units will drive the transition towards intelligent and zero-carbon transportation [10]