Heat dissipation in humanoid robots is a critical factor determining the stable performance of embodied intelligence, presenting multiple challenges such as limited joint space, sustained high motor loads, and fingertip heat density exceeding that of AI chips. The primary heat sources in robots originate from three core modules: joint actuators (contributing 50%-60% of total heat), computing units (approximately 20%), and power systems (12%-15%), with these multi-dimensional heat sources being highly coupled. It is projected that as industrialization accelerates, the global active cooling market for humanoid and quadruped robots could reach around 18 billion yuan by 2030, indicating substantial growth potential for the sector. The key analytical points are outlined below.

Critical Role of Cooling and Risks of Failure

Unlike traditional cooling scenarios, humanoid robots face specific pain points including constrained joint space, continuous high motor loads, and fingertip heat density surpassing AI chips. These require intelligent temperature control systems, presenting a complex, multi-dimensional, system-level challenge. Should cooling fail, performance would be actively throttled, leading to reduced precision and operational speed; from a safety perspective, it could result in overheating shutdowns or even short circuits and fires. The cooling capability directly determines whether embodied intelligence can perform stably and persistently.

Concentrated and Coupled Heat Sources

The heat in humanoid robots mainly comes from three core modules. Joint actuators are the primary heat source; a device is equipped with 20 to 50 actuators containing multiple sub-sources like motors and drivers, contributing 50%-60% of the total heat. Computing units are the next significant source, where core chips such as SoCs and GPUs can reach instantaneous power consumption of 50-300W under high load, with extremely high heat flux density, accounting for about 20% of the heat. Power system components, including various conversion and driving devices, generate 12%-15% of thermal losses. The superposition of these multiple heat sources significantly increases the difficulty of thermal management.

Technological Evolution and Market Expansion

Industry cooling solutions have evolved from traditional passive methods to diverse approaches including air cooling, liquid cooling, and biomimetic technologies. Among these, air cooling is the most mature and widely applied. Liquid cooling offers superior heat dissipation efficiency; as the overall power consumption of robots continues to rise, the penetration rate of liquid cooling solutions in the industry is expected to increase significantly. With the acceleration of industrialization for humanoid and quadruped robots, high growth in unit shipments and a steady decline in prices will continuously drive the release of thermal management demand. It is estimated that the global active cooling market for these robots could reach approximately 18 billion yuan by 2030, indicating ample room for growth in this sector.

Potential risks include slower-than-expected downstream demand realization, technological iteration and validation risks, supply chain risks for high-end materials, and a slow industry scaling process.