Rotor of axial flux motor, and axial flux motor

WO2025185113A8 Publication Date: 2025-10-02ZHEJIANG PANGOOD POWER TECH CO LTD
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Patent Information

Application Number
PCT/CN2024/116830
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-03-06
Filing Date
2024-09-04
Publication Date
2025-10-02

AI Technical Summary

Technical Problem

In high-speed applications of existing axial magnetic field motor rotors, the centrifugal force of the magnetic steel cannot be effectively radially constrained by the fixing ring, resulting in an unstable rotor structure that cannot meet high-speed requirements.

Method used

By setting a limit part and a fixing ring on the rotor bracket, radial constraints are provided to the inner and outer ring magnetic steel assemblies respectively. Combined with the reinforcement ribs and segmented design, the rotor structural stability is enhanced and eddy current losses are reduced.

Benefits of technology

It realizes effective radial constraint on the magnetic steel unit, can adapt to higher-speed rotation, improves the structural stability of the rotor, reduces eddy current loss, and reduces production costs.

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Abstract

A rotor of an axial flux motor, and an axial flux motor. The rotor of the axial flux motor comprises a rotor carrier (1), a fixing ring (2), and a plurality of magnetic steel units (3); the rotor carrier (1) is circumferentially provided with a plurality of mounting slots (11); each magnetic steel unit (3) is correspondingly mounted in one mounting slot (11); the fixing ring (2) is arranged around the rotor carrier (1) and radially limits the magnetic steel units (3); in the radial direction of the rotor carrier (1), each magnetic steel unit (3) comprises an inner ring magnetic steel assembly (31) and an outer ring magnetic steel assembly (32); a plurality of limiting portions (12) are formed on the rotor carrier (1); and each limiting portion (12) radially limits one inner ring magnetic steel assembly (31).
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