Commonly used in brushless motor exactly what technology, how to explain the professional nouns, and what is the difference between various parameters and equipment and contact? Today will bring you a comprehensive understanding of the commonly used brushless motor mould industry. According to the structure and working principle of the motor, the motor can be divided into brush motor, brushless motor rotor and outer rotor brushless motor. A brush motor: we also known as the dc motor or carbon brush motor, is the oldest type of motor, is currently the largest number of motor type. Motor, coil and the commutator rotating, magnetic steel and carbon brush don't turn, is the direction of the coil current changes with the motor rotation phase switcher and brush. This kind of motor has a relatively low cost, high torque, simple structure, easy maintenance, etc. But due to the structure limit, so the shortcomings are obvious:, mechanical commutation sparks caused commutator and brush friction, electromagnetic interference, big noise and short life. , complicated structure, poor reliability, fault, requires constant maintenance. , because commutator, limiting the rotor moment of inertia of fall further, affect the dynamic performance. So in mould industry is mainly applied to the slower and is not sensitive to vibrations models, ship model, model aircraft motor is rarely used. Brushless motor: this is a brush motor mould industry, in addition to outside to use most of a motor, brushless dc motor without the use of mechanical brush device, using square wave self-control type permanent magnet synchronous motor, with hall sensor to replace carbon brush and commutator rotor in ndfeb permanent magnet materials, the performance has a great advantage compared with the general traditional dc motor. With high efficiency and low energy consumption, low noise, long life, high reliability, can be the advantages of frequency control of motor speed servo control, and as for the shortcomings, it is more expensive than a brush, poor maintenance, is widely used in model aircraft, high-speed car model and ship model. Part of the brushless motor is simple, mainly by the front cover, the cover, back cover, silicon steel sheet, enameled wire, bearings, shaft, magnets, call is not the same, of course, some people, some called outer rotor shell or inner rotor shell, etc. Brushless dc motor, in short, is to rely on changing the input to the brushless motor stator coil of alternating current wave frequency and waveform, the winding coil to form a whole motor geometry axis turn around magnetic field, the magnetic field driving permanent magnet on the rotor magnet steel, motor turned up and the performance of the motor and the number of magnetic steel, magnetic steel, magnetic flux intensity, and the size of the motor input voltage and other factors, more with brushless motor control performance has much to do, because the input is the direct current, current need electronic governor turned it into an alternating current, also need to receive control signal from the remote control receiver, control motor speed, to meet the needs of the model using. In general, the structure of the brushless motor is relatively simple, instead of brushless motor shell demands a lot higher than have brush motor housing demand, concentricity, flatness, beating degree, vertical degree, partial amount of meat is more than a brush motor shell.
