ELECTRIC MACHINE COOLING SYSTEM AND METHOD

摘要

Some embodiments of the invention provide an electric machine including a rotor assembly. In some embodiments, the rotor assembly can include a plurality of rotor laminations including at least one first aperture positioned through a portion of the rotor laminations. In some embodiments, the first apertures can form at least one magnet channel when the rotor assembly is substantially assembled. At least one permanent magnet can be positioned in each of the magnet channels. In some embodiments, at least one second aperture can be positioned through a portion of some of the laminations, along a Q-axis, and adjacent to the at magnet channel. Also, the second apertures can be configured and arranged to form at least one first coolant channel when the rotor assembly is substantially assembled.