Both motor KV and the number of poles are related to the speed/RPM of the motor. We know that as the RPM increases, the KV value also increases. Alternatively, a higher number of poles corresponds to a motor running at a lower RPM. Therefore, the relationship between the number of motor poles and the KV value is inversely proportional. This makes sense when we actually consider it.
A Brushless DC motor is mostly used in a car purifier to drive the centrifugal air blower to discharge the dirty air. A Brushless DC motor body is determined according to the motor circuit scheme, commonly used two-phase bridge type phase change drive circuit. The inner stator winding can be more easily wound on the core teeth. The motor is made into an external rotor-type structure, with the stator and stator winding placed inside the rotor. The phase change drive circuit uses a special integrated circuit (ASIC) with a simple circuit and control protection function.
Brushless DC motors for milling machines and lathes can achieve stepless speed regulation, fully adapting to the needs of the operating process, and the original mechanical speed control device can be canceled. Application of brushless DC motor in the automotive industry The main reason for the application of brushless DC motor in the automotive industry is that it has higher torque, higher power, higher reliability, and longer service life than traditional brush motors, especially for windows and sunroofs, etc. When a fault is encountered, it will automatically stop running to avoid injury accidents.
Due to the large-scale research and development of brushless DC motors and the gradual maturity of technology, the distribution of its drive system in industrial production has expanded and has gradually become the mainstream of industrial motor development, and major manufacturers also provide different models of brushless motors to meet the needs of different drive systems. At present, brushless motors are used in textile, metallurgy, printing, automated production lines, CNC machine tools, and other industrial production.
A brushless DC electric motor (BLDC motor or BL motor), also known as an electronically commutated motor (ECM or EC motor) or synchronous DC motor, is a synchronous motor using a direct current (DC) electric power supply. As we have seen, the benefits the 3-phase brushless DC motor offers range from low noise, high efficiency, and durability. Many brushless DC motor applications also require compact yet high torque devices, and the motor fits that perfectly.
Brushless DC motors are widely used in AI intelligence, automobiles, medical equipment, industrial automation, etc. due to their long life, low noise, and high torque. Because of their different specifications and types, the right brushless DC motors are selected to meet product performance requirements, which is very important. So how do we choose a brushless motor that is most suitable for our products?
