Permanent magnet segmentation PWM arranges sinusoidal wave disc type electric machine

The utility model discloses permanent magnet segmentation PWM arranges sinusoidal wave disc type electric machine, relates to the disc type electric machine field, in particular to sinusoidal wave disk PMSM including the rotor dish, stator dish and permanent magnet, permanent magnet are installed on the rotor dish, the stator dish is installed between two rotor dishes, and rotor dish number has more one than stator dish number at least, stator dish and rotor dish coaxial arrangement, stator dish and rotor dish NULL in the axial, every utmost point permanent magnet segmentation on the rotor dish sets up, and every permanent magnet hop count under extremely is the odd number, every pole fitting 2k+1 piece permanent magnet on the said rotor, wherein k is for being greater than zero positive integer, and the central line department at every utmost point is installed to k+1 piece permanent magnet, and other 2k piece permanent magnets are divided into two, and the symmetrical installs on k+1 piece both sides, every limit installation k piece permanent magnet, the width of every permanent magnet is followed the centre and is reduced gradually to the edge, and is the same to two permanent magnet width of center line symmetry after dividing into the multistage permanent magnet, reduce the loss on the stator, improve motor operating efficiency, do benefit to the simplification of mounting process