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US 10,707,707 B2Granted
Electric machine rotor
AssigneeFord Global Technologies, LLC
InventorChun Tang
Life of this patent
Estimating the term…
Abstract
A vehicle may include an electric machine. The electric machine may include a stator surrounding sections stacked to form a rotor. Each of the sections may have nested pairs of permanent magnets radially spaced from a rotational axis of the rotor. Corresponding pairs of permanent magnets of each of the sections may be aligned along a direction of the rotational axis. Corresponding chambers adjacent to the permanent magnets may have different shapes such that corresponding pole arc angles are different.
Claims19
A vehicle subsystem comprising:
- an electric machine including a stator surrounding sections stacked to form a rotor, each of the sections having nested pairs of permanent magnets radially spaced from a rotational axis of the rotor, corresponding pairs of permanent magnets of each of the sections being aligned along a direction of the rotational axis, and corresponding chambers adjacent to the permanent magnets having different shapes such that corresponding pole arc angles are different.
An apparatus comprising:
- an electric machine including a stator surrounding sections stacked to form a rotor, the sections having nested pairs of permanent magnets radially spaced from a rotational axis of the rotor, corresponding permanent magnets of the sections being aligned along a direction of the rotational axis, and corresponding chambers next to the permanent magnets and of adjacent sections being in partial registration and having different shapes such that corresponding pole arc angles of the adjacent sections are different.
An apparatus comprising:
- an electric machine including a stator surrounding sections stacked to form a rotor, the sections having pairs of permanent magnets radially spaced from a rotational axis of the rotor, corresponding permanent magnets of the sections being aligned along a direction of the rotational axis, and corresponding chambers next to the permanent magnets and of adjacent sections being in partial registration and having different shapes such that corresponding pole arc angles of the adjacent sections are different.
Dependencies are inferred from the claim text.