公开(公告)号：EP2362525A3

公开(公告)日：2011-12-28

申请号：EP11155784.9

申请日：2011-02-24

申请人： General Electric Company

发明人： LOKHANDWALLA, Murtuza ,  KALLURI, Rammohan Rao ,  HARAN, Kiruba Sivasubramaniam

IPC分类号： H02K1/27

CPC分类号： H02K1/2766 ,  Y02E10/725

摘要： A rotor structure (10) for an interior permanent magnet (IPM) electromotive machine (8) is provided. The rotor structure (10) may include at least one rotor lamination (12), which in turn may include at least one slot arranged to receive at least one permanent magnet (16). The slot divides the rotor lamination (40) into a pole region (18) and a yoke region (20). At least one bridge (44) is arranged to connect the pole region (18) to the yoke region (20) at an outer edge (24) of the lamination (52). The outer edge (24) of the lamination (52) is profiled along a segment (26) of the bridge (44) to define a concave curved profile (28) for the bridge (44). The concave curved profile (28) for the bridge (44) allows to selectively size a thickness of the bridge (44) to affect at least some electromagnetic and/or mechanical characteristic of the machine.

公开(公告)号：EP2362525A2

公开(公告)日：2011-08-31

申请号：EP11155784.9

申请日：2011-02-24

申请人： General Electric Company

发明人： LOKHANDWALLA, Murtuza ,  KALLURI, Rammohan Rao ,  HARAN, Kiruba Sivasubramaniam

IPC分类号： H02K1/27

CPC分类号： H02K1/2766 ,  Y02E10/725

摘要： A rotor structure (10) for an interior permanent magnet (IPM) electromotive machine (8) is provided. The rotor structure (10) may include at least one rotor lamination (12), which in turn may include at least one slot arranged to receive at least one permanent magnet (16). The slot divides the rotor lamination (40) into a pole region (18) and a yoke region (20). At least one bridge (44) is arranged to connect the pole region (18) to the yoke region (20) at an outer edge (24) of the lamination (52). The outer edge (24) of the lamination (52) is profiled along a segment (26) of the bridge (44) to define a concave curved profile (28) for the bridge (44). The concave curved profile (28) for the bridge (44) allows to selectively size a thickness of the bridge (44) to affect at least some electromagnetic and/or mechanical characteristic of the machine.

摘要翻译： 提供了一种用于内部永磁体（IPM）电动机（8）的转子结构（10）。 转子结构（10）可以包括至少一个转子叠片（12），所述至少一个转子叠片（12）又可包括布置成容纳至少一个永磁体（16）的至少一个槽。 槽将转子叠片（40）分成极区（18）和轭区（20）。 至少一个桥（44）布置成在叠片（52）的外边缘（24）处将极区域（18）连接到轭区域（20）。 叠片（52）的外边缘（24）沿着桥（44）的段（26）成型，以限定用于桥（44）的凹曲面（28）。 用于桥（44）的凹形弯曲轮廓（28）允许选择性地对桥（44）的厚度进行尺寸以影响机器的至少一些电磁和/或机械特性。