Patent ID: 7276828
Filing Date: 2007-10-02
Classification: F04D,F16C,H02K

Abstract:
1. A magnetic bearing system adapted to be used in a fan, comprising: a first magnetic assembly mounted around an annular surface of a shaft of the fan, the first magnetic assembly having a plurality of separate magnets being stacked with the same polarity of adjacent magnets being jointed therein, wherein a stacked interface between two opposite polarities of each magnet of the first magnetic assembly is perpendicular to the annular surface of the shaft; a second magnetic assembly mounted on an annular surface of a stator seat of the fan, the second magnetic assembly having a plurality of separate magnets being stacked with the same polarity at adjacent magnets being jointed therein, wherein a stacked interface between two opposite polarities of each magnet of the second magnetic assembly is perpendicular to the annular surface of the stator seat; and a supporting assembly mounted on the stator seat for axially supporting the shaft; wherein the first magnetic assembly and the second magnetic assembly are positioned corresponding to each other and radially supporting the shaft.