Rising Chinese Vacuum Cleaner Motor Technology

　　Today, We will have a brief of the development history of vacuum cleaner motor technology. As the suggests, the vacuum cleaner motor is the heart of the vacuum cleaner, because it is constantly evolving with the development of the times. When the world did not have Dyson, in the 1950s, the Chinese ancestors made a sample for the Chinese people with reference to the prototype, and it is now. How can hard-working Chinese bow their heads to motors? Chinese vacuum cleaner motorists have crossed mountains and seas, and will eventually cross the era when there are no foreigners to restrain them. When Dyson broke into the world, its motor technology attracted the attention of the whole industry and promoted a revolution in the world's vacuum cleaners. At this time, what Chinese vacuum cleaner motorists need is the courage and determination to race against time, and what they need is the rise of China's vacuum cleaner motor technology when China's power rises!

　　In the early 1990s, the speed of domestic vacuum cleaner motors was generally 23,000 rpm, and the weight could reach 1.5 kg. It can be said that the weight is large, the volume is large, and the efficiency is low. The electric people are thinking about how to innovate on the existing technology, and they must explore the potential needs of the future around the pain points of users, and at the same time, they must be one step ahead of others and insist on differentiated innovation. In this context, it is proposed to independently develop the first domestic high-performance motor with a speed of more than 30,000 rpm, so as to achieve the goal of reducing the weight, miniaturization and greatly improving the performance of the motor. Under the conditions of capital, technology and environment at that time, this innovation was not easy.

　　First of all, start to tackle the problem of paint dripping on the rotor of the motor. Because the high-speed rotation of the motor will generate huge heat, it is easy to cause paint dripping on the rotor and cause the machine to burn. Therefore, the motorists collected paint raw materials all over the world, led the R&D team to experiment with various paint materials and processes one by one in the high-temperature aging room, and finally the epoxy resin paint was successfully matched, and the problem of motor burn-in was finally overcome; The process and quality of carbon brushes and bearings are tackled, and a series of technical problems such as process precision, quality strength and operation balance of core components are solved.

　　After half a year of exploration, research and testing, in 1997, China's first high-performance series motor with a speed of 33,000 rpm was successfully independently developed. The speed is increased by 40%, the weight is reduced by 30%, the efficiency is increased by 20%, and the power reaches 1200 watts. Compared with Japanese imports, the motor cost has also dropped significantly. The innovation of this motor opened the prelude to the cooperation with major international brands.

　　In the next few years, the Chinese people continued to carry out technological innovations. Under the premise that the size of the motor continued to shrink, the power continued to increase, gradually increasing to 1400 watts, 1600 watts, 18 million, and 2000 watts. At the same time, the motor speed was gradually increased to 4.3 10,000 rpm, 45,000 rpm, 50,000 rpm, 60,000 rpm.

　　In 2013, after painstaking research and development, the first generation was also the first in China and the second in the world with an 80,000-rpm ultra-high-speed brushless DC digital motor.

　　In 2017, the technology was upgraded again, and the latest research results were launched - 100,000 rpm 450W super brushless digital motor. Its performance indicators are: suction power 225W, suction efficiency 50%, vacuum degree reaches an astonishing 27.5kPa

　　On October 30, 2018, Midea Welling released a new ultra-high-speed vacuum cleaner motor with a speed of up to 150,000 rpm at the 15th China Household Appliance Technology Conference. This motor has high speed, low noise, large suction, and lightweight German features. It is worth mentioning that it adopts a unique one-piece bearing system, the speed can reach as high as 150,000 under working conditions, and the comprehensive utilization rate of fan efficiency reaches 53%, which is at the forefront of the industry.

　　Opportunities and Challenges of Vacuum Cleaner Motors in China

　　China is the world's vacuum cleaner manufacturing base, and there is a huge potential demand for motors. China's vacuum cleaner motor manufacturing enterprises are also growing day by day, but there is still a gap with world-renowned companies. At present, domestic high-end vacuum cleaner brand motors still rely on imports. We need to overcome one by one. As shown in the comparison table above, the speed of the whole machine has increased or even surpassed, but the suction of the whole machine is almost close to that of some brands. The improvement and optimization of the overall performance is also a process of vacuum cleaner motors from quantitative to qualitative change, and it is also the only way for the development of things. Only pragmatic innovation of Chinese vacuum cleaner motors will have a broader world. Let us witness the development of Chinese vacuum cleaner motors together. Rise!

　　Zhoushan Yehao is willing to contribute its own strength in this wave of reform and bring Chinese electric vacuum cleaner motor to the world.