1. Technological advancement promotes the development of permanent magnet brushless motors
In the 21st century, the micro-motors that meet the requirements of coexistence with the global environment, network and robots will be rapidly developed, and will build a new era of micro-motors. Coexisting with the global environment requires high efficiency and energy saving of the motor, high material saving, quiet and comfortable, harmless and pollution-free. In combination with the network, the motor is required to be miniaturized, flaky, high-speed, lightweight, high-precision, high-performance, and the like. To meet the requirements of high-efficiency, low inertia, low-speed, high-torque, intelligent, etc., in order to meet the above requirements, foreign micro-motor manufacturing companies attach great importance to the research and development of permanent magnet brushless motors and drive control technology. Optimized design of the motor, reasonable selection of parameters, reduction of torque ripple and noise, expansion of the speed range; multi-pole concentrated winding, reducing the length of the winding end, block or hinged armature punching to improve the defect rate, high efficiency and high performance The research of drive control technology and the adoption of high-performance permanent magnet materials make the permanent magnet brushless motor have the advantages of high efficiency, energy saving, high output, material saving, high reliability and high performance, small size and light weight.
