ELECTRIC MOTOR

摘要

An electric motor includes a stator operable to produce a magnetic field and defining an opening, and a rotor at least partially disposed within the opening. The rotor includes a shaft extending along a rotational axis, a plurality of first core portions each including a plurality of laminations stacked contiguously on the shaft, and a second core portion coupled between each of the first core portions. The first core portions and the second core portion cooperating to define a rotor magnetic core. A plurality of windings is coupled to the rotor magnetic core, and an air flow path is partially defined by the first core portions, the second core portion, and the shaft. The air flow path includes an axial portion that passes through the shaft axially along the rotational axis and a radial portion that extends radially outward through the second core portion.

主权项

1. An electric motor comprising:
a stator operable to produce a magnetic field, the stator defining an opening; and a rotor at least partially disposed within the opening, the rotor comprising:
a shaft extending along a rotational axis;a magnetic core portion supported by the shaft, the magnetic core portion comprising a plurality of laminations and a plurality of windings supported by the laminations, the windings being configured to produce a magnetic field when an electric current passes through the windings; wherein the laminations comprise a first type of lamination and a second type of lamination which is a different type of lamination than the first type of lamination.