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2025

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02

Directions of Motor Development

With the continuous advancement of society, the continuous development of high technology


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With the continuous advancement of society, the continuous development of high technology (especially the application of AI technology), and people's continuous pursuit of a better life, the application of micromotors is becoming increasingly widespread. For example, the home appliance industry, the automotive industry, office furniture, the medical industry, the military industry, modern agriculture (planting, breeding, warehousing), logistics and other fields are all developing towards automation and intelligence to replace labor, so the application of motors is also continuously expanding. The future development direction of motors mainly reflects in the following aspects:

 

1. Intelligent Development Direction

With the world's equipment manufacturing industry and industrial and agricultural product production constantly improving in terms of action precision, control precision, action speed, and information precision, the motor drive system is required to have various functions such as self-judgment, self-protection, self-speed regulation, and 5G+ remote control. Therefore, intelligent motors will definitely be an important development trend in the future. POWER company should pay special attention to the research and development of intelligent motors in its future development.

In recent years, we have seen various applications of intelligent motors, especially during the epidemic period, intelligent devices have played an important role in our fight against the epidemic, such as: intelligent robots measuring body temperature, intelligent robots delivering goods, intelligent robots judging the epidemic situation, etc.

It has also played an important role in disaster relief, such as: unmanned aerial vehicle fire judgment, firefighting intelligent robots climbing walls (POWER has already produced this intelligent motor), underwater intelligent robots exploring the seabed, etc.

With the continuous improvement of China's internal circulation economic development, modern agriculture will definitely be China's future development trend. President Xi said: "Without the modernization of agriculture, there will be no modernization of China". Intelligent motors are widely used in modern agriculture, such as: in animal husbandry: intelligent feed dispensing (different amounts and different nutritional elements can be provided according to the different growth stages of the animals), artificial robot assistance during animal delivery, intelligent animal slaughter, etc. In plant cultivation: intelligent ventilation, intelligent watering, intelligent dehumidification, intelligent fruit picking, intelligent sorting and packaging of fruits and vegetables, etc.

 

2. Low Noise Development Direction

For motors, there are two main sources of motor noise: one is mechanical noise, and the other is electromagnetic noise. In many motor application scenarios, customers have high requirements for motor noise. Reducing motor system noise requires consideration of many aspects. It is a comprehensive research integrating mechanical structure, rotational component dynamic balance, component precision, fluid mechanics, acoustics, materials, electronics, and magnetic fields, and then the noise problem can be solved based on various simulation experiments. Therefore, in actual work, solving motor noise is a difficult task for motor R&D personnel, but motor R&D personnel often solve it based on past experience in solving noise. With the continuous development of technology and the continuous improvement of requirements, reducing motor noise gives motor R&D personnel and scientific and technological workers constantly higher tasks.

 

3. Flat Development Direction

In the actual application of motors, many occasions require the motor diameter to be larger and the length to be smaller (i.e., the motor length-diameter ratio is smaller) when selecting a motor, such as the disc-shaped flat motor currently produced by POWER. Customers require a lower center of gravity for the finished product, improving the stability of the finished product during operation and reducing the noise during operation. However, if the length-diameter ratio is too small, it also puts higher demands on the motor production process. Motors with a smaller length-diameter ratio are more commonly used in centrifugal separators. Under the condition of a certain motor speed (angular velocity), the smaller the length-diameter ratio of the motor, the greater the motor linear velocity, and the better the separation effect.

 

4. Lightweight and Miniaturization Development Direction

Lightweight and miniaturization are important development directions for motor design. For example, motors used in aerospace, automotive motors, unmanned aerial vehicle motors, and medical equipment motors all have high requirements for the weight and volume of motors. In order to achieve the goal of motor lightweighting and miniaturization, that is, the weight and volume of motors per unit power decrease, motor design engineers need to optimize the design and apply advanced technology and high-quality materials. Because the conductivity of copper is about 40% higher than that of aluminum, the application ratio of copper and iron should be increased. Cast aluminum rotors can be replaced with cast copper, and higher-level materials are also needed for motor cores and magnets, greatly improving their conductivity and magnetic conductivity, but this optimization will increase the cost of motor materials. In addition, for miniaturized motors, higher requirements are also placed on the production process.

 

5. High-efficiency and Green Environmental Protection Development Direction

Motor environmental protection includes the application recycling rate of motor materials and the efficiency of motor design. For motor design efficiency, the measurement standard must first be determined. The International Electrotechnical Commission (IEC) has unified global motor energy efficiency and measurement standards. It covers motor energy saving platforms such as the United States (MMASTER) and the European Union (EuroDEEM). For the application recycling rate of motor materials, the European Union is about to implement the recycling rate (ECO) standard for the application of motor materials. China is also actively promoting environmentally friendly and energy-saving motors.

The high-efficiency and energy-saving standards for motors in various countries will be further improved, and high-efficiency and energy-saving motors may become a popular product in market demand. On January 1, 2023, the National Development and Reform Commission and other five departments of China issued the "Advanced Level, Energy-saving Level, and Access Level of Key Energy-consuming Product Equipment (2022 Edition)" which came into effect. For the production and import of motors, priority should be given to the production and purchase of motors that have achieved advanced energy efficiency levels. For the micromotors we currently produce, there will definitely be requirements for motor energy efficiency levels for production and import and export in various countries.

 

6. Standardized Development Direction of Motors and Control Systems 

The standardization of motor and control systems has always been the goal pursued by motor and control manufacturers. Standardization brings many benefits to research and development, production, cost control, quality control, etc.

Motor standardization includes the standardization of external structure and motor performance. The standardization of external structure brings about the standardization of parts, and the standardization of parts will bring about the standardization of parts production and motor production. Performance standardization can be based on the standardized external structure of the motor to design motor performance in sections to meet the performance needs of different customers.

The standardization of control systems includes the standardization of hardware and software and the standardization of interfaces. Therefore, for the control system, the hardware and interface standardization should be done first. Based on the standardization of hardware and interfaces, software modules can be designed in sections according to market demand to meet the functional needs of different customers.