Patent ID: 8217546
Filing Date: 2012-07-10
Classification: H02K,Y02E

Abstract:
1. A permanent-magnet, adapted to be used inside an electrical machine, the permanent magnet comprising: a surface, at least one base plane and a transition area, wherein a first side of the surface is adjacent to the base plane and is connected with the base plane via the transition area, wherein the surface is aligned to a coil and to an air gap of the electrical machine in a way, that magnetic forces of the permanent magnet interact via the surface and the air gap with the coil by a magnetic flux density distribution, and wherein the transition area has a cross-section that is determined by a Bezier function, which is assigned to and defined by three points, including respective first points P wherein the transition area of the permanent magnet determined by the Bezier-function is based at least on the following control parameters: a first control parameter w