Patent ID: 7235910
Filing Date: 2007-06-26
Classification: H01F,H02K

Abstract:
1. A low-loss bulk amorphous metal magnetic component for an electric motor, comprised of a plurality of substantially similarly shaped layers etched from amorphous metal strips to desired shapes and laminated together to form a stack, and annealed, wherein the annealed stack is coated with an adhesive agent to form a polyhedrally shaped part wherein the layers are bonded, said low-loss bulk amorphous metal magnetic component, when operated at an excitation frequency “f” to a peak induction level B max , having a core-loss less than about “L”, wherein L is given by the formula L=0.005 f(B max ) 1.5 +0.000012 f 1.5 (B max ) 1.6 , the core loss, excitation frequency and peak induction level being measured in watts per kilogram, hertz, and teslas, respectively.