Axial flux electric machine with rotor and deformation-locked permanent magnets

FR3172885A1Pending Publication Date: 2026-09-11IFP ENERGIES NOUVELLES
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Patent Information

Application Number
FR2025002162
Authority / Receiving Office
FR · FR
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2026-09-11

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Abstract

The invention relates to a method for mounting permanent magnets in a rotor body and a method for manufacturing an axial flux electric machine rotor, the rotor body being made of non-magnetic material and comprising annular portions connected by radial portions (3), the radial portions (3) creating openings for positioning said permanent magnets (5), each radial portion (3) comprising an internal radial cavity (4). The following steps are carried out: a) the permanent magnets (5) are positioned in said openings and the concave surfaces (7) of the permanent magnets (5) are opposite the radial portions (3) at each circumferential end of each permanent magnet (5); b) the external surfaces of the radial portions (3) are deformed, these external surfaces fitting into the concave surfaces (7). The invention also relates to an electric machine rotor. Figure 2 to be published
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