发明名称 Sheet metal holder for retaining permanent magnets
摘要 A rotor for an electric motor. A rotor for an electric motor has a main rotor body which includes radial support surfaces. In addition, the rotor has permanent magnet bodies which are arranged radially externally on the radial support surfaces. Associated with each permanent magnet body is a sheet metal holder which at least partially covers the respective permanent magnet body on the side thereof remote from the support surface and which is designed and arranged such that it secures this permanent magnet body in the radial direction.
申请公布号 US9425659(B2) 申请公布日期 2016.08.23
申请号 US201113879576 申请日期 2011.10.13
申请人 Continental Automotive GmbH 发明人 Schröder Lothar
分类号 H02K1/28;H02K1/27 主分类号 H02K1/28
代理机构 Cozen O'Connor 代理人 Cozen O'Connor
主权项 1. A rotor for an electric motor, comprising: a rotor basic body having a longitudinal axis, axial ends, and a plurality of radial resting surfaces; a plurality of permanent magnet bodies, each arranged on a respective one of the radial resting surfaces, each of the plurality of permanent magnet bodies pointing radially outwards, each of the plurality of permanent magnet bodies having a radial outer circumferential surface radially outward of the radial resting surfaces; a sheet-metal holder associated with each respective permanent magnet body arranged on a portion of the radial outer circumferential surface of each of the plurality of permanent magnet bodies; wherein the sheet-metal holder is configured to fix the respective permanent magnet body radially with respect to the rotor basic body, and wherein the respective sheet-metal holder covers the respective permanent magnet body on its side facing away from the respective resting surface in a circumferential direction of the rotor in a central region of the respective permanent magnet body from a first longitudinal end of the respective permanent magnet body to a second longitudinal end of the respective permanent magnet body parallel to the longitudinal axis and leaves respective peripheral regions uncovered, wherein the sheet metal holder has a plurality of legs that extend radially inwards towards the longitudinal axis at each respective longitudinal end of the plurality of permanent magnet bodies that corresponds with the axial ends of the rotor basic body and each leg terminates at a radially inner end, the radially inner ends of the respective legs being joined by a ring arranged at the axial ends of the rotor body, wherein an entire radial outer circumferential surface of each of the plurality of permanent magnet bodies is planar.
地址 Hannover DE