Magnetic slot wedge with low average permeability and high mecha

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

1982-06-03

1984-01-10

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310254, H02K 348

Patent

active

044255217

ABSTRACT:
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 with a width corresponding to the width of the slot. The laminations each have central bridge portions connecting a first and second magnetic region, the bridge portion saturating during machine operation. The bridge 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.

REFERENCES:
patent: 2386673 (1945-10-01), Fisher
patent: 3904785 (1975-09-01), Baumann
patent: 4293787 (1981-10-01), Motoya et al.

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