Low noise fast response permanent magnet DC brushless motor for constant wind control
A permanent magnet DC, brushless motor technology, applied in the direction of electrical components, electromechanical devices, magnetic circuit static parts, etc., can solve the problems that affect the smooth and low-noise operation of the motor, the difficulty of industrialization, and the small starting torque, etc., to achieve Improve air gap magnetic field waveform, overcome electromagnetic noise and rotor loss, and reduce torque fluctuation
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[0029]The present invention adopts a permanent magnet brushless DC motor fan with DC frequency conversion, and its working principle is: the stator produces a rotating magnetic field that directly interacts with the rotor permanent magnetic field to make the motor run, and the motor speed can be adjusted by changing the DC voltage.
[0030] figure 1 As shown, a low-noise and quick-response permanent magnet brushless DC motor for constant air volume control includes a casing 11, a stator 12 and a rotor inside the casing, and the stator includes a stator core and a stator winding fixed on the inner wall of the casing. The shell doubles as the stator magnetically permeable yoke. Permanent magnet rotors with mixed poles of radially and tangentially magnetized steel magnets, such as figure 2 , 3 , 4 shows: the permanent magnet rotor includes the main shaft 1, the rotor iron core 2 and the outer circumference direction of the rotor iron core are uniformly fixed with magnetic pole...
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