ROTOR OF AN ELECTRIC MACHINE

The invention relates to a rotor (1) of an electric machine (2), said rotor comprising a rotor body (4) which can be rotated about a rotor axis (3) and which, with respect to a cross-section, has a plurality of rotor poles (5) each having a pole center axis, (6) wherein; a plurality, in particular a...

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Bibliographic Details
Main Authors Fridrich, Juergen, Klis, Daniel, Albunni, Mohammad Nassar, Theisinger, Peter, Reutlinger, Kurt, Alexander, Marcus, Sichau, Adrian Heinrich
Format Patent
LanguageEnglish
Published 16.05.2024
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
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Summary:The invention relates to a rotor (1) of an electric machine (2), said rotor comprising a rotor body (4) which can be rotated about a rotor axis (3) and which, with respect to a cross-section, has a plurality of rotor poles (5) each having a pole center axis, (6) wherein; a plurality, in particular all, of the rotor poles (5) have a two-layer magnet assembly (7) comprising a plurality of magnets (8), in particular permanent magnets; each magnet assembly (7), as viewed in the radial direction with respect to the rotor axis (3), comprises an inner layer (10) of at least three magnets (8) and an outer layer (11) composed of two magnets (8); the inner layer (10) forms a radially outwardly open arc; the outer layer (11) is designed such that the distance between the magnets (8) of the outer layer (11) increases radially outwards; and the magnets (8.2) of the inner layer (10), which are outer with respect to the pole center axis (6), and the magnets (8) of the outer layer (11) each have an angle of inclination (α2, α1) with respect to the pole center axis (6), which angle of inclination is formed between the pole central axis (6) and an axis of inclination (12) of the magnet (8) in question.The rotor is characterized in that:the magnets (8) of the radially outer layer (11) are arranged in such a manner that a point of intersection (S1) of the axis of inclination (12) of the magnets (8) of the radially outer layer (11) with the pole center axis (6) lies radially inside the radially inner layer (10); andthe angle of inclination (α1) of the magnets (8) of the radially outer layer (11) is designed to be smaller than the angle of inclination (α2) of the outer magnets (8.1) of the radially, inner layer (10).
Bibliography:Application Number: US202218549741