公开(公告)号：US08664822B2

公开(公告)日：2014-03-04

申请号：US13483261

申请日：2012-05-30

申请人： Rajeev Vyas ,  Thomas Wolfgang Nehl ,  Alexandru Rajala ,  Chandra S. Namuduri

发明人： Rajeev Vyas ,  Thomas Wolfgang Nehl ,  Alexandru Rajala ,  Chandra S. Namuduri

IPC分类号： H02K21/12

CPC分类号： H02K1/2766

摘要： A rotor for an interior permanent synchronous machine. A rotor core structure includes an outer cylindrical wall juxtaposed to an air gap. A plurality of arcuately-shaped cavities is formed within the rotor core structure. The plurality of arcuately-shaped cavities is substantially concentrically layered with respect to an outer cylindrical wall of the rotor core structure. Each arcuately-shaped cavity extending between first and second end sections is juxtaposed to the outer cylindrical surface wall of the rotor structure and includes an intervening center section. A plurality of permanent magnets is inserted within the plurality of arcuately-shaped cavities. Each first end section retains a respective first permanent magnet having a first magnet field strength. Each second end section retains a respective second permanent magnet having the first magnetic field strength. Each center section retains a respective third permanent magnet having a second magnet field strength less than the first magnetic field strength.

摘要翻译： 用于内部永久同步电机的转子。 转子芯结构包括与气隙并置的外圆筒壁。 在转子芯结构内形成多个弧形空腔。 多个弧形空腔相对于转子芯结构的外圆筒壁基本上同心地分层。 在第一和第二端部之间延伸的每个弧形腔并置到转子结构的外圆柱形表面壁上并且包括中间部分。 多个永久磁铁插入多个弧形腔内。 每个第一端部分保持具有第一磁场强度的相应的第一永磁体。 每个第二端部保持具有第一磁场强度的相应的第二永磁体。 每个中心部分保持具有小于第一磁场强度的第二磁场强度的相应的第三永磁体。

公开(公告)号：US08664823B2

公开(公告)日：2014-03-04

申请号：US13483277

申请日：2012-05-30

申请人： Rajeev Vyas ,  Thomas Wolfgang Nehl ,  Alexandru Rajala

发明人： Rajeev Vyas ,  Thomas Wolfgang Nehl ,  Alexandru Rajala

IPC分类号： H02K21/12

CPC分类号： H02K1/2766

摘要： A rotor for a permanent synchronous machine includes a rotor having a plurality of arcuately-shaped cavities formed within a rotor core structure. The plurality of arcuately-shaped cavities substantially concentrically layered with respect to an outer cylindrical wall of the rotor core structure. A plurality of permanent magnets is inserted within the plurality of arcuately-shaped cavities. Each cavity layer retains a permanent magnet of a first magnetic field strength disposed in end sections and a permanent magnet of a second magnetic field strength in a center section of each cavity layer. Each respective cavity includes an air barrier formed between the magnets having different magnetic field strengths. The air barrier generates a reluctance within an air barrier gap for directing a flow of flux generated by each third permanent magnet in a preceding layer in a direction toward each third permanent magnet in a succeeding layer.

摘要翻译： 用于永久同步电机的转子包括具有形成在转子芯结构内的多个弧形空腔的转子。 多个弧形空腔相对于转子芯结构的外圆筒壁基本同心地分层。 多个永久磁铁插入多个弧形腔内。 每个空腔层保持设置在端部中的第一磁场强度的永磁体和在每个空腔层的中心部分中具有第二磁场强度的永磁体。 每个相应的腔包括形成在具有不同磁场强度的磁体之间的空气阻挡层。 空气障碍物在空气阻挡间隙内产生磁阻，用于将先前层中的每个第三永久磁铁产生的磁通流沿着后续层中的每个第三永久磁铁的方向引导。