Application scope of brushless motor

Brushless DC motor is the fastest-growing variety in the small motor industry in recent years. With the "small, light and thin" of audio-visual products, the mute of household appliances and the increasing demand for luxury cars, the demand for brushless DC motor has increased rapidly. Brushless DC motor replaces brushes and commutators with electronic commutation, which has the advantages of high reliability, high efficiency, long service life and convenient speed regulation. All countries have accelerated the speed of developing new products and the strength of occupying the market. Many Japanese companies have applied brushless DC motors to digital cameras, micro recorders, video cameras, printers, storage drives, mobile phones, as well as automotive air conditioners, washing machines, vacuum cleaners, electric vehicles, heart pumps and other fields.

The basic structure and principle of Brushless DC motor brushless DC motor is developed on the basis of Brushless DC motor. It is based on Faraday's law of electromagnetic induction and backed by emerging electronic technology and digital technology. Brushless DC motor is mainly composed of permanent magnet motor body, control circuit and position detection. Its rotor is composed of permanent magnets, and there are polyphase windings on the stator. The biggest feature of Brushless DC motor is that there is no mechanical contact machine composed of inverter and brush. In addition, it usually uses permanent magnets as rotors. There is no excitation loss, and the heated armature winding is usually installed on the outer stator, so the thermal resistance is small and it is easy to dissipate heat. Therefore, brushless DC motor has no commutation spark, no radio interference, long service life, reliable operation and simple maintenance. In addition, its speed is not limited by commutation. If air bearings or magnetic bearings are used, it can run at speeds of up to hundreds of thousands per minute. Brushless DC motor has been widely used because of its good performance of servo control.

The market trend and Prospect of small motors are the focus of attention. Small motor manufacturers in various countries are always studying and analyzing the market situation. With the continuous development of the global economy and the continuous improvement of people's living standards, the demand for small motors is increasing, and the market prospect of small motors is promising.

Motor for information processing equipment

Information processing equipment includes information input, storage, processing, output, transmission and other links, involving microcomputer, floppy disk machine, hard disk machine, optical disk drive, printer, fax machine, copier, mobile phone, etc. the small motors used by these equipment mainly include: permanent magnet DC machine, brushless DC motor, stepping motor, brushless DC fan, micro synchronous motor, etc, Small motors used in information processing equipment account for about 30% of the total output of small motors.

Motor for audiovisual equipment

People usually call audio-visual equipment such as tape recorders, music centers, record players, car stereos, walkmans, CD players, video recorders, video cameras, disc players, digital laser discs, and various cameras. With the continuous development of economy, people's living standards have been rapidly improved, and the demand for audio-visual equipment has increased, providing a broad market for small motors. According to relevant data, the motors supporting audio-visual equipment account for about 25% of the total output of small motors.

Motors for household appliances:

There are many kinds of household appliances. The main products are air conditioners, refrigerators, washing machines, vacuum cleaners, freezers, air cleaners