About brushless motor brushless motor manufacturer
the stator winding of the motor to make more balanced three-phase y connection, and is similar to the three-phase asynchronous motor. On the rotor of the motor with the magnetization of the permanent magnet has, in order to detect the polarity of the motor rotor, inside the planetary gear motor is equipped with position sensor. Drive consists of power electronic devices and integrated circuit, its function is: accept the motor start, stop, brake signal, to control the motor start, stop, braking; Accept the position sensor signals and positive &negative, used to control the inverter bridge on and off of each power tube produce continuous torque; Accept the speed instruction and speed feedback signal, which is used to control and adjust the speed; To provide protection and display, and so on.
study of asynchronous motor frequency control of motor speed, in the final analysis is looking for a way to control the asynchronous motor torque, rare earth permanent magnet brushless dc motor is bound to in the wide speed range, small volume, high efficiency and steady speed and small error characteristics appeared in the field of speed advantage.
because of brushless dc motor has the characteristics of a dc motor, is also the electric drill speed reducer of frequency variation, so also known as dc frequency conversion. Brushless dc motor operation efficiency and precision of low speed torque and rotational speed is more good than any of the control technology of inverter, so the industry concern. Production 55 kw, this product has been designed to 400 kw, can solve industry energy saving and the requirement of high performance drive.
the development of brushless motor in our time is short, but as the technology increasingly mature and perfect got rapid development. Has been used in model aircraft, medical equipment, household electrical appliances, motor, and other fields is widely used, and in shenzhen, changsha, Shanghai and other places to form certain scale industrial chain. In recent years, the brushless motor become a rapid development in the field of model of a kind of power. Because of production and price, over the past few years brushless motor used in high-grade aviation model, now due to the rapid development of machining technology, the production cost of brushless motors dropped many, it is into the model in the field of all levels, from electric remote control cars to electric remote control boat to electric model planes, everywhere.
a lot of people have seen the model with brushless motors, batteries, they use so a lot of people there have been such a misunderstanding in the knowledge, thought the brushless motor is a dc motor, actually otherwise, brushless motor is ac motor, is a kind of three-phase ac permanent magnet motor, brushless motor input model 3 wire circuits are alternating current (ac), it's just, it is not a 50 hz ac mains sine wave, but from the brushless motor controller of three-phase alternating rectangular wave modulation, frequency is higher than 50 hz, and the changes over the motor speed.
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In the boundless Chinese market, there are a number of enterprises that provides planetary gear motor electric motor suppliers of their own brand over the years, but few have won more support from customers on the international stage than Zhenyu.