轴向磁通电机在人形机器人领域的应用

Summary of Axial Flux Motor Application in Humanoid Robots Industry Overview - The axial flux motor is increasingly being applied in the humanoid robot sector, offering significant advantages in space and weight savings, particularly in joints such as arms, lower limbs, and hips [1][2]. Key Points and Arguments - Space and Weight Efficiency: Axial flux motors can save 30%-60% in space and 30%-70% in weight compared to traditional radial flux motors, making them particularly suitable for humanoid robots [1][2]. - High Torque and Power Output: These motors excel in enhancing torque density and power density in humanoid robot joints, especially in high-torque areas like hips, waist, and shoulders [1][4]. - Cost Considerations: The current cost of axial flux motors is relatively high due to the use of heavy rare earth materials like dysprosium and tantalum, which increases costs by 10%-30% compared to traditional neodymium-iron-boron permanent magnets [1][5]. - Emerging Startups: Several startups are adopting the PPB configuration of axial flux motors, achieving a balance between performance, cost, and quality stability, with products suitable for both large and small joints [1][5]. - Technological Barriers: The design and manufacturing of axial flux motors face significant technical barriers, including the need for advanced materials and precision manufacturing processes [10]. Additional Important Insights - PCB Stator Technology: This technology offers advantages such as lightweight design and reduced iron loss but faces challenges like low magnetic saturation and poor heat dissipation [7]. - Market Players: Key global players include Yasa (acquired by Mercedes), Wireless, and others focusing on high-end products, while domestic leaders like Pangu Power and Xiang Elephant Electric are making strides in commercialization [3][8]. - Future Cost Reduction: The cost of axial flux motors is expected to decrease significantly with increased production volumes, with potential prices dropping to 300-500 RMB per unit for large-scale production [15]. - Adoption in Humanoid Robots: Current users of axial flux motors in humanoid robots include companies like Xiang Elephant, which prioritize performance stability and reliability in real-world applications [16]. - Industrialization Timeline: The large-scale industrialization of axial flux motors in the robot sector may take several more years, requiring further technological integration and support from complete machine manufacturers [17].