Patent ID: 6847149
Filing Date: 2005-01-25
Classification: H02K

Abstract:
1. A brushless motor, having a rotor which can rotate about a rotation axis and has a specific number of magnetic poles which are distributed uniformly around the rotation axis and each extend along a slot pitch; having a stator which is arranged coaxially with respect to the rotor and has three stator teeth for each two magnetic poles, which stator teeth are distributed uniformly around the rotation axis, with center points of mutually adjacent stator teeth being separated from one another by one slot pitch; wherein the stator teeth have free surfaces which are opposite the magnetic poles, and wherein each stator tooth is provided with a single projecting element which extends radially from the respective free surface in the direction of the rotor and wherein each projecting element essentially being in the form of an equilateral trapezoid, with the smaller base surface facing the rotor and the circumferential size being measured on the center line between the smaller and the larger base surface.