Bulk stamped amorphous metal magnetic component

H - Electricity – 01 – F

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H01F 1/153 (2006.01) H01F 3/04 (2006.01) H01F 41/02 (2006.01)

Patent

CA 2409754

A bulk amorphous metal magnetic component has a plurality of laminations of ferromagnetic amorphous metal strips adhered together to form a generally three-dimensional part having the shape of a polyhedron. The component is formed by stamping, stacking and bonding. The bulk amorphous metal magnetic component may include an arcuate surface, and an implementation may include two arcuate surfaces that are disposed opposite each other. The magnetic component may be operable at frequencies ranging from between approximately 50 Hz and 20,000 Hz. When the component is excited at an excitation frequency "f" to a peak induction level Bmax, it may exhibit a core-loss less than "L" wherein L is given by the formula L = 0.0074 f (Bmax)1.3 + 0.000282 f1.5 (Bmax)2.4, said core loss, said excitation frequency and said peak induction level being measured in watts per kilogram, hertz, and teslas, respectively.

L'invention concerne un composant magnétique massif en métal amorphe présentant une pluralité de couches formées par des bandes en métal amorphe ferromagnétique appliquées l'une contre l'autre pour former une pièce en général tridimensionnelle ayant la forme d'un polyèdre. Ledit composant est formé par estampage, empilage et liaison. Ce composant magnétique massif en métal amorphe peut présenter une surface arquée. Dans un autre mode de réalisation, ce composant peut comporter deux surfaces arquées opposées. Ledit composant magnétique peut fonctionner à des fréquences comprises entre 50 Hz et 20 000 Hz environ. Lorsque ledit composant est excité à une fréquence d'excitation "f" à un niveau d'induction maximal B¿max?, il peut présenter une perte dans le fer inférieure à "L", où L correspond à la formule L = 0,0074 f (B¿max?)?1.3¿ + 0,000282 f?1.5¿ (B¿max?)?2.4¿, ladite perte dans le fer, ladite fréquence d'excitation et ledit niveau d'induction maximal étant respectivement mesurés en watts/kg, hertz, et en teslas.

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