Permanent magnet brushlesls DC electric machine

The utility model relates to a permanent magnet brushless DC motor which is used for generating two magnetic poles of each permanent magnet (1) of an air gap field, and the two magnetic poles both face an armature winding and a straight shaft of the magnetic pole and are parallel to a rotating shaft of a rotor. A brushless commutator of the utility model is composed of a magnetic suction device (2) which is used for providing commutation signals and a mechanical switch (3), wherein the mechanical switch (3) is used for processing the commutation signals and can commutate currents on each armature winding. The utility model has the advantages of low cost, stable operation, long service life and high efficiency.