人形机器人：专题三之执行器系统：核心部件，顺势启航

Investment Rating - The report maintains an "Outperform" rating for the humanoid robot industry, indicating a positive outlook for investment opportunities in this sector [2]. Core Insights - The actuator system is identified as a critical component of humanoid robots, with significant advancements in design and technology leading to increased integration and control precision while reducing energy loss [2][3]. - The humanoid robot market is projected to evolve into a multi-billion dollar market, with actuators expected to directly benefit from the widespread adoption of humanoid robots [2][3]. Summary by Sections Actuators: Key Components of Humanoid Robot Hardware System - Electric actuators are preferred due to their cost-effectiveness and high control precision, with the market seeing a shift from hydraulic and pneumatic systems to electric systems [7][10]. - Rigid actuators are currently the mainstream solution due to their high control precision, while elastic actuators and proprioceptive actuators are emerging as promising alternatives [12][19]. Motors: The "Blood Vessels" of the Actuator System - Servo motors and frameless torque motors are the primary types used in humanoid robots, chosen for their high integration and efficiency [31][35]. - The report highlights the advantages of servo motors, including high control precision and better overload capacity compared to stepper motors [37][38]. Gear Reducers: Bridges Between Motors and Transmission Devices - The report discusses various types of gear reducers, including harmonic reducers and RV reducers, emphasizing their importance in the actuator system [2][3]. Lead Screws: Transmission Devices for Linear Actuators - The development of high-load planetary roller screws is noted as a significant opportunity in the context of high-end manufacturing and robotics [2][3]. Encoders: Feedback Devices for Drive Control Information - Optical encoders are highlighted for their maturity and high precision, while magnetic encoders are noted for their cost-effectiveness and future potential [2][3]. Force Sensors: Feedback Devices for Motor Output Torque - Six-dimensional force sensors are identified as a key area of research, with few domestic companies capable of mass production [2][3]. Investment Recommendations: Broad Prospects with Localization as Key - The report suggests that humanoid robots are likely to first gain traction in commercial and industrial applications before expanding into household and public sectors, creating a significant market opportunity [2][3].