Efficient high-speed electric device using low-loss materials

H - Electricity – 02 – K

Patent

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Details

H02K 1/12 (2006.01) H02K 1/02 (2006.01) H02K 21/24 (2006.01)

Patent

CA 2514958

The invention relates generally to an electric device, such as an electric motor, a generator, or a regenerative motor, having a wound stator core (20) made from advanced low-loss material. In preferred embodiments, the electric device (23) is an axial airgap-type configuration. The invention provides an electric device (23) having a high pole count that operates at high commutating frequencies, with high efficiency and high power density. Advanced low-loss materials (22) exploited by the present invention include amorphous metals, nanocrystalline metals, and optimized Si-Fe alloys.

De manière générale, la présente invention a trait à un dispositif électrique, tel qu'un moteur électrique, un générateur, ou un moteur à récupération, comportant un noyau de stator enroulé réalisé en un matériau amélioré à faibles pertes. Dans des modes de réalisation préférés, le dispositif électrique présente une configuration de type à entrefer axial. L'invention a trait à un dispositif électrique présentant un compte polaire élevé fonctionnant à des fréquences de commutation élevées, avec une grande efficacité et une densité de forte puissance. Des matériaux améliorés é faibles pertes utilisés par la présente invention comprennent des métaux amorphes, des métaux nanocristallins, et des alliages Si/Fe optimisés.

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