Invention Grant
- Patent Title: Electric machine with variable cross section stator windings
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Application No.: US15812282Application Date: 2017-11-14
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Publication No.: US10673293B2Publication Date: 2020-06-02
- Inventor: Seong Taek Lee
- Applicant: BorgWarner Inc.
- Applicant Address: US MI Auburn Hills
- Assignee: BorgWarner Inc.
- Current Assignee: BorgWarner Inc.
- Current Assignee Address: US MI Auburn Hills
- Agency: Bose McKinney & Evans LLP
- Main IPC: H02K3/12
- IPC: H02K3/12 ; H02K3/28

Abstract:
An electric machine including a rotor operably coupled with a stator having a plurality of stator windings. Each stator winding defines has a plurality of axially extending segments disposed within the stator slots and a plurality of end turn segments. At least one first axially extending segment defining a first cross sectional area and at least two second axially extending segments defining a smaller second cross sectional area are disposed in each of the stator slots. At least one of the plurality of end turn segments conductively couples a single first axially extending segment in a first one of the plurality of slots to at least two second axially extending segments in a second one of the plurality of slots. In some embodiments, the larger first axially extending segments are all disposed radially outwardly of the smaller second axially extending segments. The windings may be formed using hairpin conductors.
Public/Granted literature
- US20190149001A1 ELECTRIC MACHINE WITH VARIABLE CROSS SECTION STATOR WINDINGS Public/Granted day:2019-05-16
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