Stator twisting apparatus and method for axial flux hairpin motor

By designing a device that includes an upper drive disk, a mold gear assembly, and a servo drive motor, the automation problem of the stator torsion head of an axial flux motor was solved, enabling simple operation and factory assembly line production, thus filling a technological gap.

WO2026129724A1PCT designated stage Publication Date: 2026-06-25NEVEM INTELLIGENT TECHNOLOGY (SHANGHAI) CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
NEVEM INTELLIGENT TECHNOLOGY (SHANGHAI) CO LTD
Filing Date
2025-08-29
Publication Date
2026-06-25

AI Technical Summary

Technical Problem

The lack of a torsion forming process for the external leads of the stator of an axial flux motor that is suitable for factory assembly line operations limits the large-scale production and application of axial flux motors.

Method used

The device employs an upper drive disk, an upper mold gear assembly, a central guide disk, a lower mold gear assembly, a lower drive disk, and a torsion head power assembly, combined with a servo drive motor and a lifting drive mechanism, to achieve an automated torsion head process for the stator of an axial flux flat wire motor.

Benefits of technology

An automated torsion head for the stator of an axial flux flat wire motor has been achieved. The structure is simple, the operation is convenient, and it is suitable for factory assembly line operations, thus reducing production costs.

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Abstract

A stator twisting apparatus and method for an axial flux hairpin motor. The apparatus comprises an upper drive disc (1), an upper mold tooth assembly (2), a central guide disc (3), a lower mold tooth assembly (4), a lower drive disc (5), and a twisting power assembly, wherein the upper mold tooth assembly (2) comprises a plurality of upper mold teeth (21), the upper mold teeth (21) being mounted on the upper surface of the central guide disc (3); the lower mold tooth assembly (4) comprises a plurality of lower mold teeth (41), the lower mold teeth (41) being mounted on the lower surface of the central guide disc (3); the upper drive disc (1) is provided with a plurality of first involute slide rails (8); the upper drive disc (1) is mounted on the upper surface of the central guide disc (3), and at least part of the upper mold teeth (21) pass through the first involute slide rails (8); the lower drive disc (5) is provided with a plurality of second involute slide rails (18); the lower drive disc (5) is mounted on the lower surface of the central guide disc (3), and at least part of the lower mold teeth (41) pass through the second involute slide rails (18).
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