WINDING METHOD FOR COMMUTATORLESS DC MOTOR COIL AND COMMUTATORLESS DC MOTOR

摘要

PURPOSE:To eliminate the extreme decrease of a starting torque even near the switching point of an exciting current by forming a plurality of exciters at a yoke member of a stator, and magnetically coupling the coils of the exciters in a chain form. CONSTITUTION:Adjacent poles in which even number (m) of permanent magnets M1-Mm are disposed adjacently are inverted and arranged circularly in a rotor 1. the yoke member 3 of a stator 2 has (n) pieces of poles P1-Pn divided by 2m=n pieces of slots S1-Sn. Two exciters A, C and B, D of the first and second types are formed in the slots S1-Sn, and (m) pieces of coils are wired in series per one of the exciters A-D. The exciters A or B and C or D in which the coils are wound in a relation that he slots are displaced by one are magnetically coupled in a chain state in such a manner that each coil has at least one pole.