Poly-phase electromagnetic device having an improved...

H - Electricity – 02 – K

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H02K 3/28 (2006.01) H02K 3/12 (2006.01) H02K 15/06 (2006.01)

Patent

CA 2504685

A poly-phase electromagnetic device having n winding phases (n>2) wherein each phase is made from a single conductor strand wound in a lap form configuration. The windings are configured such that on assembly to a slotted magnetically conducive base a maximum of n-1 end turns overlapping is achieved so that the slot packing density can be optimised. The preferred configurations also enable neat and compact terminations which facilitates efficient packaging of the completed device. The windings are made either from discrete bobbins which are electrically interconnected upon assembly to the base, or alternatively from strings of continuously formed sub-windings. The latter process in particular enables full or partial automation of the winding and/or assembly process.

L'invention porte sur un dispositif électromagnétique pluriphasé à n enroulements de phase (n>2) constitués chacun d'un fil unique enroulé en forme de nappe. Les enroulements sont tels que lorsqu'assemblés sur une base à fentes magnétoconductrice, on obtient un maximum de n-1 spire se recouvrant, ce qui permet d'optimiser la densité de remplissage des fentes. Par ailleurs, les configurations préférées présentent des terminaisons nettes et compactes facilitant le montage final du dispositif. Les enroulements sont faits soit de bobines séparées qu'on relie ensemble lors de leur montage sur la base, soit de longueurs de sous-enroulements élaborés en continu. Ce dernier procédé permet d'automatiser entièrement ou partiellement les processus d'enroulement ou d'assemblage.

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