An application domain, office computer peripheral equipment, digital consumer products fields. This is the most widely spread brushless dc motor, the largest number of fields. Such as in the life of common printers, fax machines, photocopiers, hard drives, floppy drives, the motion picture camera, tape recorder, etc. , in their main shaft and auxiliary driving control, will find the figure of brushless dc motor. 2 application field two, industrial control field. In recent years, because of the brushless dc motor large-scale research and technology mature gradually, the drive system in the industrial production distribution range is expanded, has gradually become the mainstream of the development of industrial motor. To reduce production cost and improve efficiency of study and try to have achieved significant benefits, each big manufacturer also provides different types of motor driving system to meet different needs. At this stage in the textile, metallurgy, printing, automatic production assembly line, industrial production, such as CNC machine tools, have dabbled in brushless dc motor. 3 applications, medical devices. In foreign countries, the use of brushless dc motor is relatively common, can be used to drive the small artificial heart blood pump; At home, surgical instruments with high-speed high-speed centrifuge, thermal imager and the infrared laser thermometer modulator using brushless dc motor. 4 application field, the auto sector. According to the analysis on the market, the average family car need 20 - permanent magnet motor 30, while each limo to 59, in addition to the core engine, the wipers, auto air conditioning, electric Windows, electric door have in areas such as the motor. With the development of automobile industry in the direction of the energy conservation and environmental protection, the use of the motor must also satisfy the criteria for high efficiency and low energy consumption. And brushless dc motor, low noise, long service life, no spark interference, the advantages of convenient centralized control in full compliance with, as its speed regulation technology is increasingly mature, will be more and more high cost performance, its application in automobile motor drive each link will be more extensive. 5 five application fields, the field of household appliances. Ago, the frequency conversion 'technology has been very common, as a symbol of the Chinese electrical appliances gradually occupied most of the consumer market,' dc inverter 'favored by manufacturers, has been gradually replace the ac frequency conversion transformation trend. This change is essentially the motor by the induction motor used in the home appliance to the transition of brushless dc motor and its controller, in order to achieve energy conservation and environmental protection, low noise, intelligent, high comfort requirements. The development direction of brushless dc motor and power electronics, sensors, control theory and technology the development direction of the same, it is a combination of multiple techniques, its development depends on the related each kind of technical innovation and progress.
