A motor winding, a motor stator and a motor

By optimizing the multiphase winding structure of the flat wire motor and adopting concentric setting and pitch design, the problems of large stator winding end height and large copper content were solved, realizing the compact design and efficient operation of the motor.

CN224503019UActive Publication Date: 2026-07-14HYCET TRANSMISSION TECH HEBEI CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HYCET TRANSMISSION TECH HEBEI CO LTD
Filing Date
2025-07-31
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In the existing technology, the stator winding of the flat wire motor has the problems of high end height and large amount of copper used for welding.

Method used

The multi-phase winding structure is adopted, with each phase winding including multiple parallel branches. Each parallel branch is wound in the stator slot and divided into N/2 groups of winding units. The hairpin conductors in the parallel branches are set concentrically, the pitch design is optimized, the number of bridging conductors and redundant length are reduced, and the connection path is optimized.

Benefits of technology

The space at the end of the stator core was reduced, the amount of copper was reduced, the motor efficiency and dynamic balance were improved, and leakage inductance and eddy current losses were reduced.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224503019U_ABST
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Abstract

The utility model provides a kind of motor winding, motor stator and motor, belong to motor technical field, including multiphase winding, each phase winding includes multiple parallel branches, each parallel branch is wound in stator slot, and N layers of hairpin winding are distributed in each stator slot;Each parallel branch includes multiple sequentially connected hairpin conductors, and each parallel branch forms N / 2 groups of winding units, and every adjacent two groups of winding units are also connected by a hairpin conductor;The hairpin conductor of connecting adjacent two groups of winding units is concentric with one of the two groups of winding units hairpin conductor setting.The utility model reduces the number of jumper hairpin conductor by grouping integration, compresses end space, reduces the copper amount of end jumper wire;Two hairpin conductors are concentric, avoid the complex wiring of hairpin conductor needing to span different radial layers, reduce the intersection and bending of end hairpin conductor, make stator core end more compact.
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