IMPROVED ROTOR FOR A ROTATING ELECTRICAL MACHINE, COMPRISING AT LEAST ONE MAGNET CLAMPING ELEMENT

摘要

The invention relates primarily to a permanent-magnet rotor (10), particularly for a rotating electrical machine, for example for an electric turbocharger. The rotor comprises: a rotor body (11) defining a plurality of cavities (21); and a set of permanent magnets (22), in particular having radial magnetisation, housed in the cavities (21), each cavity (21) comprising a first space (45) provided at one orthoradial end of the cavity (21) and a second space (45) provided at another orthoradial end of the cavity (21). The cavity (21) comprises an end-stop (54) for orthoradially maintaining a corresponding permanent magnet (22) in place, disposed on the side of the first space (45). The rotor is characterised in that each cavity (21) comprises at least one clamping element (513) that pushes a corresponding permanent magnet (22) against the end-stop (54), said clamping element (513) being disposed in the second space (45).