The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 06, 2021
Filed:
Jul. 03, 2018
GM Global Technology Operations Llc, Detroit, MI (US);
Khwaja M. Rahman, Troy, MI (US);
Xiaohui Du, West Bloomfield, MI (US);
Edward L. Kaiser, Pontiac, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A stator assembly includes a plurality of stator slots having multiple respective slot layers and a plurality of hairpins. The plurality of hairpins have a respective first leg positioned in one of the multiple respective slot layers and a respective second leg positioned in another of the multiple respective slot layers. A first set of n adjacent slots of the plurality of stator slots is configured to accommodate the plurality of hairpins carrying a current in a first phase, n being an integer. The plurality of hairpins is configured in respective conductor layers (L, L. . . ) having a plurality of respective turn locations defining n respective turn positions. The plurality of hairpins is configured to occupy the n respective turn positions an equal number of times such that the respective conductor layers (L, L. . . ) are electrically balanced.