China brushless permanent magnet motor manufacturer, permanent magnet brushless motor position sensor will rotor magnet position into electrical signals to control the electronic switch line, so that the stator windings in a certain order of conduction, so that the stator phase current with the rotor position changes in the correct order of phase-commutation.In this way, the electronic magnetic field can be constantly changed with the rotation of the rotor, generated from the rotating magnetic field synchronized with the rotor speed, and the stator magnetic field and the rotor magnetic field always maintain a space Angle of about 90°, with the maximum torque to promote the rotor rotation.Because the conduction order of the electronic switch circuit is synchronized with the rotor rotation Angle, it plays the role of the mechanical commutator, which ensures that the magnetic field between the stator and the rotor is always basically perpendicular during the operation of the motor, so as to improve the operation efficiency.So the brushless DC motor in terms of its basic structure, can be a human by the electronic switch commutation current, permanent magnet synchronous motor and position sensor three components of the "self synchronous motor system", it will not be out of step in the process of operation.Permanent magnet brushless motor rotor structure of BLDCM with both traditional dantian substructure, the amount of disc structure, and this year over new structure form of outer substructure and linear structure, with the practical application of the new permanent magnetism materials, the structure of the motor rotor is more and more diversified, the electric car motor brushless permanent magnet motor BLDCM is moving toward higher force, high precision, to combine micro development a variety of purposes, such as resistance to environment.
