公开(公告)号：US20140054990A1

公开(公告)日：2014-02-27

申请号：US13980191

申请日：2011-12-20

申请人： Erik Nordlund ,  Therese Jägers ,  Mikael Sima

发明人： Erik Nordlund ,  Therese Jägers ,  Mikael Sima

IPC分类号： H02K9/06

CPC分类号： H02K9/06 ,  H02K1/2766 ,  H02K1/32 ,  H02K5/128

摘要： An electric machine with a rotor (4) rotatably disposed within a stator (2) has a plurality of permanent magnets received in the rotor body of the rotor. Rotor body plates are stacked so as to form at least two first channels (31) extending inside the rotor body from one axial end of the rotor to an opposite axial end thereof and having an opening (33) to the exterior of the rotor body in an end surface of the latter at at least one of these axial ends, and at least one separate second channel (32) associated with each first channel and connecting the respective first channel to a space circumferentially surrounding the rotor and separating the rotor and the stator by opening at the periphery of the rotor body so as to upon rotation of the rotor throw air out from said second channel to said space for cooling the rotor body.

摘要翻译： 具有可旋转地设置在定子（2）内的转子（4）的电机具有容纳在转子的转子体中的多个永磁体。 转子体板被堆叠成以形成至少两个第一通道（31），该第一通道（31）在转子体内从转子的一个轴向端部延伸到其相对的轴向端部，并且在转子体的外部具有开口（33） 所述后端在所述轴向端部中的至少一个端部处的端面以及与每个第一通道相关联的至少一个单独的第二通道（32），并且将相应的第一通道连接到周向围绕所述转子的空间并将所述转子和所述定子 通过在转子体的周边开口，以便在转子旋转时将空气从所述第二通道排出到所述用于冷却转子体的空间。