ELECTRIC MACHINES AND METHODS OF MAKING SAME

摘要

A method of making a stator module for use in a stator assembly of an electric machine includes temporarily supporting a plurality of stator segments in a desired orientation using a temporary support. The desired orientation of the stator segments is a relative orientation of the stator segments within the stator module. A mold is placed around the plurality of stator segments and the mold is filled with a potting material to form a stator module such that the potting material supports the stator segments in their desired orientation. The temporary support is removed.

主权项

1. A rotating electric machine comprising:
a rotor assembly supported for rotation about a rotational axis, the rotor assembly including a plurality of rotor poles, the rotor poles being supported for rotation along a rotor pole circular path about the rotational axis with a desired rotor pole spacing between adjacent rotor poles; and a stator assembly comprising:
a plurality of independently energizable stator segments, each stator segment including a magnetic core that defines a plurality of stator poles for magnetically interacting with the rotor poles, the stator segments being positioned adjacent to the rotor pole circular path such that the stator poles face the rotor pole circular path with a desired stator pole spacing between adjacent stator poles, the stator segments also being positioned adjacent to only a portion of the rotor pole circular path such that there is at least one stator pole gap between at least two stator poles that is greater than the desired stator pole spacing; andat least one non-energizable termination magnetic core positioned within the stator pole gap and adjacent to one of the stator segments such that the termination core provides an additional magnetic flux return path for magnetic flux associated with the energizing of the adjacent stator segment.