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公开(公告)号：US10177621B2
公开(公告)日：2019-01-08
申请号：US15303629
申请日：2014-08-06
Applicant: Hitachi, Ltd.
Inventor： Naoki Kunihiro , Daisuke Kori , Motonobu Iizuka , Tetsuo Fujigaki , Atsushi Fukunaga , Yasunori Otsuki , Masakatsu Sato , Masanori Matsumoto , Takeshi Nakayama , Masaaki Endo , Yoshihiro Yasui , Yasushi Hayasaka
Abstract: A rotating electric machine comprises a field winding provided on a rotor iron core and a neutral ring supported independently of the field winding, wherein: the field winding and the neutral ring are electrically connected to each other through a connecting wire; the neutral ring is disposed spaced with respect to the rotor iron core; and the connecting wire absorbs the stress difference between the field winding and the neutral ring when a centrifugal stress is applied.
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2.发明授权公开(公告)号：US10033237B2
公开(公告)日：2018-07-24
申请号：US14754821
申请日：2015-06-30
Applicant: Hitachi, Ltd.
Inventor： Yasushi Hayasaka , Masanori Matsumoto , Yasunori Otsuki , Tetsuo Fujigaki , Yoshihiro Yasui , Motonobu Iizuka , Masaaki Endou , Atsushi Fukunaga , Takeshi Nakayama
Abstract: A rotating electrical machine includes a rotor core, a rotor shaft, a coil, a bind, a lead-out wire of which one end is connected to the coil and the other end is connected to a neutral ring. A filling is filled between the coil and the neutral ring. The neutral ring is formed with a plurality of members that are connected with one another to have flexibility.
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公开(公告)号：US09054568B2
公开(公告)日：2015-06-09
申请号：US13767492
申请日：2013-02-14
Applicant: Hitachi, Ltd.
Inventor： Daisuke Kori , Motonobu Iizuka , Atsushi Fukunaga
CPC classification number: H02K1/27 , F04D13/06 , F04D29/5806 , H02K1/276 , H02K7/14
Abstract: A permanent magnet rotating electric machine includes a rotor and a stator. The rotor includes: a permanent magnet forming a single pole within a rotor core of the rotor, the permanent magnet being divided into two divided permanent magnets; a connecting portion assuming an electrical steel sheet disposed between the two divided permanent magnets; and magnet insertion holes in which the permanent magnets are inserted. In the rotor, the magnet insertion holes are shaped to include: air gaps at both end portions in a width direction of the permanent magnet, each air gap being formed between a surface of the permanent magnet extending perpendicularly to the magnetization direction and a surface of the electrical steel sheet facing the surface of the permanent magnet; a shoulder portion disposed on the facing surface; and another air gap extending toward a rotor outside diameter side and the magnetic pole center side.
Abstract translation: 永磁旋转电机包括转子和定子。 转子包括：在转子的转子芯内形成单极的永磁体，永磁体被分成两个分开的永磁体; 假设设置在两个分割永磁体之间的电工钢板的连接部分; 以及永磁体插入其中的磁体插入孔。 在转子中，磁体插入孔形成为包括：在永磁体的宽度方向上的两个端部处的气隙，每个气隙形成在垂直于磁化方向延伸的永磁体的表面和 电磁钢板面向永磁体的表面; 设置在所述面对面上的肩部; 以及向转子外径侧和磁极中心侧延伸的另一气隙。
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公开(公告)号：US09203277B2
公开(公告)日：2015-12-01
申请号：US13770078
申请日：2013-02-19
Applicant: Hitachi, Ltd.
Inventor： Daisuke Kori , Motonobu Iizuka , Atsushi Fukunaga
CPC classification number: H02K5/161 , H02K5/1737 , H02K7/083 , H02K15/03
Abstract: In a permanent magnet pump motor comprising a stator and a rotor, a permanent magnet is used for the rotor; and the rotor has a shaft end portion to be mounted with a joint shaft for rotor insertion and bearing brackets for housing therein bearings for supporting the both ends of the rotor. The bearing brackets have cavities through which a rotor shaft and the joint shaft can pass.
Abstract translation: 在包括定子和转子的永磁泵电动机中，永磁体用于转子; 并且转子具有轴端部，其安装有用于转子插入的关节轴和用于容纳其中用于支撑转子的两端的轴承的轴承托架。 轴承座具有空腔，转子轴和接头轴可以通过这些腔。
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