Invention Grant
- Patent Title: Interior bus bar for electric machine winding
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Application No.: US17514300Application Date: 2021-10-29
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Publication No.: US11557934B2Publication Date: 2023-01-17
- Inventor: Ian N. Alsman , Christopher Bledsoe
- Applicant: BorgWarner Inc.
- Applicant Address: US MI Auburn Hills
- Assignee: BorgWarner Inc.
- Current Assignee: BorgWarner Inc.
- Current Assignee Address: US MI Auburn Hills
- Agency: Maginot, Moore & Beck, LLP
- Main IPC: H02K3/28
- IPC: H02K3/28 ; H02K3/50 ; H02K3/12

Abstract:
An electric machine includes a core with windings positioned on the core. The windings include in-slot portions, end turns, and leads. The in-slot portions are positioned in slots of the core. The end turns extend from the in-slot portions at ends of the core. The leads extend from the in-slot portions and axially past the end turns. A bus bar assembly is positioned radially inward from the end turns. The bus bar assembly includes an arc portion, a plurality of axial lead connectors, and a plurality of axial phase terminals. The arc portion is positioned axially within the end turns. The axial lead connectors extend axially past the end turns and are connected to the leads. The axial phase terminals also extend axially past the end turns.
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