Bar conductor shapes for electric machines
AssigneeGb Global Technology Operations LLC
InventorsPeter J. Savagian, Rajeev Vyas
Life of this patent
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Abstract
A conductor is provided for an electric machine having an axis, a radial direction extending outward from the axis, and a tangential direction perpendicular to the radial direction. The conductor includes a solid core, having radial faces substantially perpendicular to the radial direction of the electric machine and tangential faces substantially perpendicular to the tangential direction of the electric machine. At least one tangential depression is formed on at least one of the tangential faces. The tangential depression creates a tangential void within a rectangular envelope defined by the solid core. Therefore, the surface area of the solid core is greater than the surface area of the rectangular envelope.
Claims11
A conductor for an electric machine having an axis, a radial direction extending outward from the axis, and a tangential direction perpendicular to the radial direction, the conductor comprising:
- a solid core having radial faces substantially perpendicular to the radial direction of the electric machine and tangential faces substantially perpendicular to the tangential direction of the electric machine;
- and
- at least one tangential depression formed on at least one of the tangential faces, wherein each tangential depression creates a tangential void within a rectangular envelope defined by the solid core, such that the surface area of the solid core is greater than the surface area of the rectangular envelope.
A stator for an electric machine having an axis, a radial direction extending outward from the axis, and a tangential direction perpendicular to the radial direction, the stator comprising:
- a plurality of conductor slots, wherein each conductor slot is aligned in the radial direction;
- a first conductor disposed within one of the plurality of conductor slots, including:
- a first solid core having radial faces substantially perpendicular to the radial direction of the electric machine and tangential faces substantially perpendicular to the tangential direction of the electric machine, and
- a first tangential depression formed on each of the tangential faces of the first solid core;
- and
- a second conductor disposed within the same one of the conductor slots as the first conductor and one of above and below the first conductor in the radial direction, including:
- a second solid core having radial faces substantially perpendicular to the radial direction of the electric machine and tangential faces substantially perpendicular to the tangential direction of the electric machine, and
- a second tangential depression formed on each of the tangential faces of the second solid core, wherein the first tangential depression and the second tangential depression are not substantially identical.
Dependencies are inferred from the claim text.