| 摘要 |
PURPOSE: A motor is provided to reduce a noise at a high speed by including a segment providing a uniform air gap. CONSTITUTION: A stator(104) includes a circular opening. A rotor(102) comprises a rotatable core centering around a longitudinal axis of a core within the opening of the stator. A slot within a core is separated from the central longitudinal axis to the outside of radius direction. A magnet(110) is arranged inside the slot. The core comprises an outer surface contour. The outer surface contour comprises a plurality of first outer surface segments(128,128A) and a second outer surface segment.
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