Patent ID: 6998755
Filing Date: 2006-02-14
Classification: H02K

Abstract:
1. An electronically commutated electric motor comprising: a multi-pole permanent magnet ( 18 ), a plurality of flux guide units ( 24 , 26 , 28 ) each of the flux guide units having at least one flux collector section ( 36 , 38 , 40 ) and one flux concentrator section ( 30 , 32 , 34 ), wherein each flux guide unit ( 24 , 26 , 28 ) detects a radial magnetic flux from the permanent magnet ( 18 ) and redirects the radial magnetic flux to a corresponding transversal magnetic flux; and a plurality of coils ( 52 , 54 , 56 ), each coil in communication with a flux guide unit ( 24 , 26 , 28 ); wherein the flux guide units ( 24 , 26 , 28 ) are nested within each other such that the flux collector sections ( 36 ) of a flux guide unit ( 24 ) passes through a cavity ( 72 , 78 ) of another flux guide unit ( 26 , 28 ).