End shield for an electrical machine having coplanar brackets and bearing opening

摘要

In an arrangement in an electrical machine, the electrical machine includes a rotor rotating around its shaft, a stator located from the rotor at an air gap, and a frame around the outer surface of the stator. A stator opening is formed in the end of the frame, and the stator opening is closeable with a cast end shield. The end shield includes at least three brackets protruding from the outer edge of the end shield. The brackets are fittable onto the end junctions where axially continuing structures are connected to the end at the junctions.

主权项

1. A cast end shield configured for an electrical machine, for closing a stator opening formed in an end of a frame of the electrical machine and for supporting a bearing that is to support a rotor, the end shield comprising:
an opening in a middle for a bearing supporting a shaft of a rotor; an inner rim limited by the opening; a further rim connecting to the inner rim, the further rim extending up to an outer edge of the end shield; and at least three brackets protruding smoothly from the outer edge of the end shield in a radial direction for transferring a bending stiffness to a side of the end shield, the brackets being fitted for an electrical machine frame end, wherein the opening for the bearing, and a plane perpendicular to the shaft and passing through a face of the at least three brackets configured to be facing the electrical machine, are arranged to be co-planar.