Stator, motor, electric drive system and vehicle

The use of flat wire conductors with structured connections in AC motor stators addresses the challenges of high slot fill rates and complex welding, enhancing motor performance and efficiency by simplifying the winding process and improving power density.

WO2026119723A1PCT designated stage Publication Date: 2026-06-11VALEO ELECTRIFICATION SAS

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
VALEO ELECTRIFICATION SAS
Filing Date
2025-11-28
Publication Date
2026-06-11

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Abstract

The present disclosure relates to a stator having a stator coil comprising three first phase windings Each first phase winding comprises multiple formed conductors connected in series, the formed conductors comprising full-pitch formed conductors, short-pitch formed conductors, and long-pitch formed conductors. Each formed conductor has a first conductor leg, a second conductor leg, and a non-welded end connected therebetween, and the first conductor leg and the second conductor leg are arranged in different slots, respectively, each slot having multiple layers of conductor legs arranged therein. Each first phase winding comprises multiple layer windings connected in series. Each layer winding comprises multiple branches, each branch is formed by connecting multiple full- pitch formed conductors in series, and two adjacent branches among the multiple branches are connected by the long-pitch formed conductor. Two adjacent layer windings among the multiple layer windings are connected by the short-pitch formed conductor. The present disclosure further relates to a motor comprising the stator, an electric drive system comprising the motor, and a vehicle comprising the electric drive system.
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