Patent ID: 11967864
Assignee: FORD GLOBAL TECHNOLOGIES, LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An electric machine rotor including a rotor core, the rotor core comprising:
a plurality of magnets and pairs of elongated slots circumferentially distributed on the rotor core, each pair of elongated slots jointly forming a V-shaped configuration with an opening facing an outer periphery of the rotor core, wherein each elongated slot comprises:
a mounting portion corresponding to shape of one of the plurality of magnets; and
an end hole located at an end of the elongated slot pointing to an outer periphery of the rotor core, wherein, the end hole includes a lobe area and a main body area having a middle area including a portion that extends partially outside a first side extension line of the mounting portion, and the lobe area extends from the main body area toward an exterior of the V-shaped configuration until the lobe area is partially located outside a second side extension line of the mounting portion opposite the first side extension line, wherein the main body area further comprises a tapered area that tapers from the middle area toward the mounting portion to form a transition portion between the middle area and the tapered area.