Magnetic slot wedge with low average permeability and high...

Details Magnetic slot wedge with low average permeability and high... Magnetic slot wedge with low average permeability and high...

H - Electricity

02

K

310/109

H02K 3/493 (2006.01)

Patent

CA 1197544

MAGNETIC SLOT WEDGE WITH LOW AVERAGE PERMEABILITY AND HIGH MECHANICAL STRENGTH Abstract of the Disclosure A magnetic wedge for use in toothed stators holds the stator windings in the slots formed between the teeth of the stator. The magnetic slot wedge comprises a stack of magnetic material laminations having a width corresponding to the width of the slot. The laminations each have a central bridge portion connecting a first and a second magnetic region, the bridge portion saturating during machine operation. The bridge portion and the first and second magnetic regions define an opening which, when the laminations are stacked, form a channel having a narrowed entrance. A fiberglass rod fits inside the channel and provides axial stiffness to the stacked laminations which clamp on the fiberglass rod.

432533

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