Patent ID: 6541891
Filing Date: 2003-04-01
Classification: H02K

Abstract:
A rotor having a printed wiring commutator member as a printed wiring board in which a shaft installation hole is installed at the center of said printed wiring board, at least six segment patterns separated by slits are formed around the shaft installation hole, and simultaneously, at least three conductive bodies connect every two other of said segment patterns, wherein terminal connection patterns are arranged at the outer circumference of the printed wiring board, a printed wiring commutator member is formed, not by through hole plating, as a means for forming the at least three conductive bodies for connecting said every two other segment patterns, a plurality of air-core armature coils are installed at the side opposite to the segment patterns, and terminals of the air-core armature coils are connected to the terminal connection patterns through notches arranged at the outer circumference of the printed wiring board.