Amorphous metal stator for a radial-flux electric motor

Details Amorphous metal stator for a radial-flux electric motor Amorphous metal stator for a radial-flux electric motor

H - Electricity

02

K

H02K 1/14 (2006.01) H02K 15/02 (2006.01) H02K 1/02 (2006.01)

Patent

CA 2334662

An amorphous metal stator for a high efficiency radial-flux electric motor has a plurality of segments, each of which includes a plurality of layers of amorphous metal strips. The plural segments are arranged to form a generally cylindrical stator having a plurality of teeth sections or poles protruding radially inward from the inner surface of the stator. In a first embodiment, the stator back-iron and teeth are constructed such that radial flux passing through the stator crosses just one air gap when traversing each segment of the stator. In a second embodiment, the stator back-iron and teeth are constructed such that radial flux passing through the stator traverses each segment without crossing an air gap.

L'invention se rapporte à un stator en métal amorphe destiné à un moteur électrique de grande puissance, à flux radial, comportant une pluralité de segments ayant chacun une pluralité de couches de bandes de métal amorphe. Ces segments sont agencés de façon à former un stator généralement cylindrique ayant une pluralité de sections dentées ou pôles faisant saillie radialement vers l'intérieur à partir de la surface interne du stator. Dans une première réalisation, les dents et le manchon externe en fer du stator sont conçus de sorte que le flux radial passant dans le stator croise uniquement un entrefer lorsqu'il traverse chaque segment du stator. Dans une seconde réalisation, les dents et le manchon externe en fer du stator sont conçus de sorte que le flux radial passant dans le stator traverse chaque segment sans croiser d'entrefer.

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