AXIAL FLUX ELECTRIC TRACTION MACHINE
The axial flux electric machine with a fixed rotor winding and alternated studs simplifies production and assembly, addressing complexity and maintenance issues of existing machines, while maintaining performance and reducing costs.
FR3138741B1Active Publication Date: 2025-08-29VALEO EQUIP ELECTRIC MOTEUR
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Patent Information
- Application Number
- FR2022008110
- Authority / Receiving Office
- FR · FR
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-08-04
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2042-08-04
AI Technical Summary
Technical Problem
Existing axial flux electric machines with rotating rotor windings are complex to produce, expensive, and require friction parts for power supply, leading to wear and maintenance issues.
Method used
An axial flux electric machine with a fixed rotor winding and a homopolar rotor comprising upper and lower studs that are circumferentially alternated, eliminating the need for friction parts and simplifying assembly and power supply.
Benefits of technology
Simplifies manufacturing and assembly, reduces maintenance, and maintains performance while eliminating the need for friction parts, thus lowering costs and enhancing reliability.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention relates to an axial flux electrical machine (10) rotating about an axis of rotation (X) comprising: at least one homopolar rotor (11), rotatable, with p poles comprising: an annular disc (15) with an axis of symmetry coincident with the axis of rotation (X), p / 2 upper clamps (16) and p / 2 lower clamps (17), p being an even integer, the upper clamps (16) being radially further from the axis of rotation (X) than the lower clamps (17), the lower clamps (16) and the upper clamps (17) being circumferentially alternating, at least one concentric rotor winding (20) mounted radially between the upper clamps (16) and the lower clamps (17), the upper clamps (16) and the lower clamps (17) not being axially opposite the rotor winding (20),the upper clamps (16) and the lower clamps (17) being capable of being polarized under the effect of a rotor current (Ir) circulating in the rotor winding (20) so as to form p poles of the rotor (11), and at least one stator (12), fixed in rotation, comprising at least one stator coil (30), characterized in that the rotor winding (20) is fixed in rotation. Figure for the abstract: Fig. 3,
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