Micro Coreless Motor Applications in Artificial Intelligence

The micro coreless motor(hollow cup motor), also known as the hollow cup motor, has emerged as a significant component in the field of artificial intelligence (AI), particularly in the realm of humanoid robots and automated systems. This type of motor, characterized by its unique hollow rotor structure, offers numerous advantages that make it an ideal choice for AI applications.

The coreless motor is a micro-servo direct current (DC) motor, typically no larger than 40mm in diameter, that comprises two primary parts: the stator and the rotor. Unlike traditional DC motors, the coreless motor utilizes a rotor without an iron core, with its armature winding formed into a hollow cup shape, resembling a cup, hence its name. This design eliminates the iron core, significantly reducing the rotor's mass and inertia, enabling rapid acceleration and deceleration.

In the field of AI, coreless motors are particularly advantageous due to their high energy conversion efficiency, low noise, small size, light weight, and excellent control performance. These characteristics make them suitable for use in humanoid robots, where compact and precise motors are required for joint movements. For instance, in the fingers and joints of humanoid robots, the small size of coreless motors allows for seamless integration, providing high power density, fast response speeds, and precise control.

Tesla's humanoid robot, Optimus, is a notable example of the application of coreless motors in AI. The use of these motors in Optimus demonstrates their potential to revolutionize the market, opening up new possibilities for their application. Similarly, other humanoid robots and automated systems are increasingly adopting coreless motors to enhance their performance.

In addition to humanoid robots, coreless motors are also widely used in various AI-driven applications such as drones, electric tools, smart door locks, electric toothbrushes, and hair dryers. Their compact size and high efficiency make them ideal for portable devices and small automated equipment. Furthermore, in the medical field, coreless motors are used in devices such as hair follicle extractors, gastric surgical robots, laboratory pipette pumps, reagent bottle openers, nutrition pumps, and tissue rotary cutting knives, showcasing their versatility across different industries.

The history of coreless motors dates back to the 1950s, with their initial adoption in military and aerospace applications due to their long lifespan, rapid response, small size, and high precision. Over time, as technology matured, coreless motors found widespread use in civilian sectors, including factory automation, robotics, and medical technology.

The global market for coreless motors is highly concentrated, with manufacturers such as Maxon (Switzerland), Faulhaber (Germany), Portescap, and Allied Motion Technologies occupying over 65% of the market share. These companies have a long history in the industry and offer a wide range of coreless motor products, serving various sectors including medical, industrial control, security, automotive, and aerospace.

In China, the coreless motor market is growing rapidly, but domestic enterprises mainly compete in the mid-to-low-end market. Companies like Mingzhi Electric, Dingzhi Technology, and Topband have shown some competitiveness in the coreless motor sector, but few possess the capability for mass production. However, with the increasing demand for coreless motors in AI applications, domestic enterprises have the potential to expand their market share and enhance their technological capabilities.

In conclusion, coreless motors are playing a pivotal role in the field of AI, particularly in humanoid robots and automated systems. Their unique design and superior performance make them an indispensable component in many AI-driven applications, contributing to the advancement and innovation of these technologies. As the market for AI continues to expand, the demand for coreless motors is expected to grow, further solidifying their position as a key element in the future of AI.