Patent ID: 11923739
Assignee: APPLE INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An electric motor, comprising:
a stator body that defines slots;
winding bars that are each disposed in one of the slots defined by the stator body; and
an end turn ring that is connected to the winding bars and includes bus bars that each have a first end portion and a second end portion that are connected to respective ones of the winding bars,
wherein the bus bars are arranged in pairs, each pair includes an inner bus bar and an outer bus bar, the outer bus bar of each pair is located radially and circumferentially outward from the respective inner bus bar of each pair, and the outer bus bar of each pair is U-shaped or C-shaped such that the outer bus bar of each pair is positioned adjacent to and outward from three sides of the inner bus bar of each pair,
wherein the end turn ring includes a first layer of the bus bars, the first end portions and the second end portions of the bus bars from the first layer of the bus bars are located at a first elevation, and
wherein the end turn ring includes a second layer of the bus bars, and the first end portions and the second end portions of the bus bars from the second layer of the bus bars are located at a second elevation that is different than the first elevation.