Motor With Rotor Positioning Component

A motor comprising:

• a base having opposite first and second surfaces;
• a rotor unit including a magnet carrier disposed to confront said first surface of said base and rotatable relative to said base about a rotation axis, and a magnet unit disposed on one side of said magnet carrier facing said first surface of said base, said magnet unit being in a shape of a ring and having a plurality of magnetic pole regions that are angularly disposed with respect to the rotation axis, adjacent ones of said magnetic pole regions having opposite magnetic polarities and forming a border region that extends radially with respect to the rotation axis;
• and
• a driving unit including a circuit board disposed between said base and said magnet unit, a plurality of induction coils disposed on said circuit board and operatively associated with said magnet unit to generate a magnetic repulsion force for driving said rotor unit to rotate relative to said base about the rotation axis, a sensor unit disposed on said circuit board and spaced apart from said induction coils for detecting said magnetic pole regions, and a rotor positioning component disposed on said second surface of said base and capable of magnetic attraction with said magnetic pole regions of said magnet unit such that, when said induction coils cease to generate the magnetic repulsion force to stop driving further rotation of said rotor unit, the magnetic attraction between said rotor positioning component and said magnet unit prevents said sensor unit from overlapping with a projection of any one of said border regions on said circuit board once said rotor unit stops rotating;
• wherein a first reference line is defined to extend from the rotation axis of said rotor unit to said sensor unit, said rotor positioning component extends along a second reference line that intersects the rotation axis of said rotor unit, and the first and second reference lines form an acute angle therebetween.