Efficient axial airgap electric machine having a frontiron

H - Electricity – 02 – K

Patent

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H02K 1/06 (2006.01) H01F 1/055 (2006.01) H02K 1/16 (2006.01) H02K 1/27 (2006.01) H02K 15/00 (2006.01) H02K 15/08 (2006.01) H02K 21/24 (2006.01)

Patent

CA 2541965

A rotating, dynamoelectric machine, such as an electric motor, a generator, or a regenerative motor, comprises a stator assembly that includes a backiron section, a plurality of stator tooth sections, and a frontiron. The dynamoelectric machine has an axial airgap~type configuration. In addition, the electric machine has a high pole count that operates at high commutating frequencies, with high efficiency, high power density and reduced heating in the rotor. Low-loss materials employed in the dynamoelectric machine include amorphous metals, nanocrystalline metals, optimized Fe-based alloys, and optimized grain-oriented Fe~based materials or non-grain-oriented Fe-based materials.

L'invention concerne une machine dynamoélectrique rotative, telle qu'un moteur électrique, un générateur, ou un moteur régénérateur, comprenant un ensemble stator qui présente une partie postérieure en faire, plusieurs parties dents de stator, et une partie antérieure en fer. La machine dynamoélectrique possède une configuration axiale de type entrefer. De plus, la machine électrique possède un nombre de pôles élevé qui fonctionnent à de hautes fréquences de commutation, avec une grande efficacité, une haute densité d'énergie et un échauffement limité dans le rotor. Les matériaux à faible perte employés dans la machine dynamoélectrique contiennent des métaux amorphes, des métaux nanocristallins, des alliages optimisés à base de Fe, et des matériaux optimisés à base de Fe à grains orientés ou des matériaux à base de Fe à grains non orientés.

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