1、 Working principle

A DC brushless motor uses semiconductor switching devices and position sensors as electrical driver components to achieve electronic commutation, replacing traditional contact commutators and brushes with electronic switching devices.

In short, the electronic commutator controls the on and off of DC brushless motor coils based on rotor position and speed signals. When the coil is energized, the stator coil generates a magnetic field that interacts with the permanent magnet. The generated torque causes the rotor to rotate. When the coil is disconnected, the magnetic field disappears, and due to inertia, the rotor remains rotating. By continuously controlling the on and off of the coil, the stator can be precisely controlled.

DC brushless has the advantages of high reliability, no commutation sparks, and low mechanical noise, and is widely used in high-end recording consoles, video recorders, electronic instruments, and automated office equipment.

2、 Characteristics

1. Brushless and low interference: With the removal of brushes, the most direct change for brushless motors is that they do not produce sparks, greatly reducing interference with remote control radio equipment.

2. Low noise and smooth operation: Without electric brushes, the friction force of brushless motors is greatly reduced during operation, resulting in smooth operation and low noise, which is also beneficial for the stability of the motor.

3. Long lifespan and low maintenance cost: After the absence of brushes, the wear of the brushless motor is only limited to the bearings, but the wear of the bearings is extremely low, so the brushless motor is considered a maintenance free motor.

3、 Application field

1. Industrial equipment: Brushless motors are commonly used in automation equipment, industrial motors, consumer electronics, industrial robots and other products, such as computers, aviation, automobiles, smart home appliances, medical equipment, etc. These applications require high reliability, high precision, and high efficiency of brushless motors.

2. Household appliances: Brushless motors are commonly used in household appliances, such as electric tools, air purifiers, vacuum cleaners, range hoods, fans, etc. These appliances require the characteristics of long lifespan, high efficiency, and low noise, so in the home appliance industry, brushless motors have become the best choice.

3. Robots: As an important application field of brushless motors, robots require flexible, accurate, and high-speed motors, and brushless motors can precisely meet these characteristics. Therefore, brushless motors play a crucial role in the positioning, driving, and rotation of robots.

4. Drones: As the latest application field of brushless motors, drones require the characteristics of high speed, low energy consumption, low noise, high speed and long lifespan, and high efficiency, and brushless motors precisely meet these needs. Therefore, brushless motors have been favored and widely used by drone manufacturers.

4、 Future development direction

With the rapid development of technology, brushless motors will also be widely used. Especially in the development of artificial intelligence, automobiles, the Internet of Things and other fields, brushless motors are regarded as the core carrier of electrification transformation. The rapid development of technology will also promote the further development and upgrading of brushless motors, expanding their application areas and making brushless motors one of the main achievements in electrical drive technology.

In summary, with the development of technology, brushless motors will be more widely used and become an important carrier for promoting the transformation of electrification.

Shenzhen Zhongling Technology, as a brushless motor manufacturer, can provide brushless motors ranging from 35W to 1000W, with voltages ranging from 24V to 48V, and also produces matching brushless drives that support RS485 and sensorless drives. As a supplier of only a few motors and drives, Zhongling can quickly and efficiently assist customers in completing sample testing, actively assist in solving testing problems, and quickly promote project development. To learn more about Zhongling Technology's brushless motors, please visit the official website www.zlingkj.com