Direct current motor, has brushes whose points are shifted at same adjustment angle or geometrical connection line with regard to position in which respective commutation of brushes coincides with zero crossing of voltage induced in coils

摘要

The motor (1) has two coils that are installed on a rotary armature shaft (3). A collecting switch is arranged with two pairs of brushes (14) cooperating with a set of collector strips of the armature shaft. Each of the brushes has a point (12) in contact with the collector strips and with a pair of magnetic poles. The points are shifted at a same adjustment angle or geometrical connection line (13) with regard to a position in which respective commutation of the brushes coincides with the zero crossing of a voltage induced in the coils. Independent claims are also included for the following: (1) a direct current motor system (2) a method for manufacturing a brush of a direct current motor.