Edgewise coiled metal strip core for dynamoelectric machine

Details Edgewise coiled metal strip core for dynamoelectric machine Edgewise coiled metal strip core for dynamoelectric machine

H - Electricity

02

K

310/115

H02K 1/14 (2006.01) H02K 1/16 (2006.01) H02K 15/02 (2006.01)

Patent

CA 1139815

ABSTRACT OF THE DISCLOSURE A core for an electric machine and a method of forming the core are disclosed. A metal strip is plastically deformed by punching depressions in the strip at longitudinally spaced locations adjacent an edge of the strip. This causes the strip to coil about a longitudinal axis generally normal to the plane of the strip with the edge adjacent the depressions forming the radially inner edge of the strip. The coils of strip are stacked so that the depressions are nested. The depressions are formed to have a width extending in the direction of the strip that decreases towards the radially outer edge of the strip.

344920

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