SQUIRREL-CAGE ROTOR FOR AN ASYNCHRONOUS ELECTRIC MACHINE HAVING A SUPPORT DISK THAT STABILIZES A SHORT-CIRCUIT RING

The invention relates to a squirrel-cage rotor (1) for an asynchronous electric machine, which squirrel-cage rotor comprises a laminated disk pack (7) consisting of a plurality of laminations (5) stacked next to each other in the axial direction and comprises a squirrel cage (9), wherein the short-c...

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Bibliographische Detailangaben
Hauptverfasser: LAUE, Harald, SCHECHTERLE, Jochen, KELLETER, Arndt, SCHUERG, Stefan
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:The invention relates to a squirrel-cage rotor (1) for an asynchronous electric machine, which squirrel-cage rotor comprises a laminated disk pack (7) consisting of a plurality of laminations (5) stacked next to each other in the axial direction and comprises a squirrel cage (9), wherein the short-circuit bars (11) of the squirrel cage (9) extend through the laminated disk pack (7) in the axial direction and are connected to end faces of the laminated disk pack (7) by means of a short-circuit ring (13) in each case. The squirrel-cage rotor is characterized in that a support disk (17) is arranged axially between one of the short-circuit rings (13) and an adjacent axially outermost lamination of the laminations (5), which support disk is parallel to the laminations (5) in a central region (18) and is bent axially away from the laminated disk pack (7) in an region (19) near the edge. A support disk (17) bent at the edge in such a way can be mechanically more stable than the short-circuit ring (13) because of the material of the support disk or the thickness of the support disk and can stabilize the short-circuit ring, for example with regard to strong centrifugal forces.