China into an era of rapid development brushless motor
brushless dc system is composed of subject of brushless motor and brushless drive, is a new type of electromechanical integration products. Because of brushless motor is self-control type operation, so will not generate oscillation and step out when load mutation, has a high operating stability.
brushless motor stator winding for balanced three-phase y connection, and is similar to the three-phase asynchronous motor. On the brushless motor rotor with the magnetization of the permanent magnet has, model aircraft motor, in order to detect the polarity of the motor rotor, within the motor with position sensor (Many for hall sensor)。 Brushless drive consists of power electronic devices and integrated circuits, etc, its functions are: to receive the brushless motor start, stop, brake signal, to control the brushless motor start, stop, and the brake; Receiving position sensor signals and positive &negative, used to control the inverter bridge on and off of each power tube produce continuous torque; Receives the speed instruction and speed feedback signal, which is used to control and adjust the speed; To provide protection and display, and so on.
because of brushless dc motor has the characteristics of a dc motor, is also the device of frequency variation, the generic term for BLDC. MotorsBrushless dc motor of high efficiency operation, large torque at low speed, high speed precision is better than the performance of three-phase asynchronous frequency conversion motor, dc brushless motor so dongguan has become nowadays one of the preferred motor industry in the development.
the development of brushless motor in our time is short, but as the technology increasingly mature and perfect got rapid development. Dongguan electric skateboards brushless motor has been used in model aircraft, medical equipment, household appliances, electric cars, and other fields is widely used, and in the pearl river delta, Yangtze river delta and other places to form certain scale industrial chain. Is located in foshan, a group of professional manufacturers such as rattan foot motor continuously promote the industry development in technology. 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 to enter every level in the field of industry, from automated production machinery to medical equipment to the robot, and other fields, everywhere is the figure of brushless motor. Chinese industry is in the midst of the brushless motor drive the industry transformation and upgrading of the explosion.
