Rotor shaft-lamination core connection

A rotor for an electric motor is disclosed, the rotor having a rotor shaft and a rotor core mounted on the rotor shaft, the rotor core having a plurality of core laminations arranged along an axis of the rotor core. Each core lamination comprises a central contour hole which is penetrated by the rotor shaft and which comprises at least two axially extending ridges and at least two cutouts positioned between the ridges, in order to form a press-fit of the core laminations on the rotor shaft, the central contour hole is formed in the central contour hole. The distance between the free ends of the elevations is smaller than the diameter of the rotor shaft, and wherein a duct extending circumferentially on the rotor shaft is formed by respective cuts in the core laminations arranged one behind the other. 披露了一种用于电动马达的转子，该转子具有转子轴和安装在该转子轴上的转子芯，该转子芯具有沿着该转子芯的轴线布置的多个芯叠片。每个芯叠片包括中心轮廓孔，该中心轮廓孔被该转子轴穿过并且包括至少两个轴向延伸隆起和定位在这些隆起之间的至少两个切口，其中，为了形成这些芯叠片在该转子轴上的压配合，这些隆起的自由端部之间的距离小于该转子轴的直径，并且其中，在该转子轴上周向延伸的管道由这些相继布置的芯叠片中的相应的切口形成。