公开(公告)号：US20100301696A1

公开(公告)日：2010-12-02

申请号：US12682381

申请日：2008-07-31

申请人： Erkki Juhani Lantto ,  Marko Petteri Palko ,  Ville Tommila

发明人： Erkki Juhani Lantto ,  Marko Petteri Palko ,  Ville Tommila

IPC分类号： H02K1/28 ,  H02K15/03

CPC分类号： H02K1/278 ,  H02K15/03 ,  Y10T29/49012

摘要： A rotor structure of a permanent magnet electrical machine and a method for manufacture of the rotor structure. The rotor structure has a shaft. An outer surface of the shaft is provided with a permanent magnet. A support collar encircles the permanent magnet. A protective piece is located between the outer surface of the shaft and an inner surface of the support collar and is arranged as an axial mechanical extension for the permanent magnet. The protective piece reduces local maximum values of forces forming between the support collar and the permanent magnet during rotation of the rotor.

摘要翻译： 永磁电机的转子结构和转子结构的制造方法。 转子结构具有轴。 轴的外表面设置有永磁体。 支撑环环绕永磁体。 保护件位于轴的外表面和支撑轴环的内表面之间，并且被布置为用于永磁体的轴向机械延伸。 在转子旋转期间，保护件减小了在支撑轴环和永磁体之间形成的力的局部最大值。