公开(公告)号：EP1879281A3

公开(公告)日：2010-04-07

申请号：EP07013385.5

申请日：2007-07-09

申请人： Hitachi, Ltd.

发明人： Abe, Teruyoshi ,  Ito, Motoya ,  Tajima, Fumio ,  Ishikawa, Yoshihisa

IPC分类号： H02K15/02 ,  H02K1/06 ,  H02K1/16 ,  H02K1/27

CPC分类号： H02K15/024 ,  H02K1/06 ,  H02K1/16 ,  H02K1/276

摘要： A rotating electrical machine (10) comprises a stator (40) and a rotor (60); the stator (40) comprising a stator core (42) having teeth (52) and slots (50), and stator windings (44) disposed in the slots (50), wherein the stator core (42) is made of laminated steel sheets, teeth (52) and slots (50) of the steel sheet are made by etching, and the thickness of the steel sheet is between 0.05 mm and 0.30 mm. Specifically, it is preferable that the steel sheet used herein be a silicon steel sheet containing crystalline particles.
The rotating electrical machine can reduce iron loss.

公开(公告)号：EP2053721A2

公开(公告)日：2009-04-29

申请号：EP08014860.4

申请日：2008-08-21

申请人： Hitachi Ltd.

发明人： Miyata, Kenji ,  Ishikawa, Yoshihisa ,  Ito, Motoya ,  Enomoto, Yuji ,  Koyama, Takayuki

IPC分类号： H02K1/14

CPC分类号： H02K1/145 ,  H02K1/243

摘要： A rotating electrical machine includes: a stator that includes two stator stages each constituted with a plurality of claw poles extending toward opposite sides along an axial direction at alternate positions and a ring-shaped core back that forms a magnetic path between the claw poles, the two stator stages being stacked over along the axial direction; a stator winding formed by winding a coil in a ring shape and disposed in a space enclosed by the claw poles and the core back at each of the stator stages; and a rotor rotatably disposed at a position facing the claw poles of the stator, and: stator windings corresponding to a plurality of phases are disposed together at least at one of the two stator stages.

摘要翻译： 旋转电机包括：定子，其包括两个定子级，每个定子级由多个爪极组成，所述多个爪极在交替位置处沿着轴向方向相对侧延伸;以及环形芯背，其在爪极之间形成磁路， 两个定子台沿着轴向堆叠在一起; 定子绕组，其通过将线圈卷绕成环形并且设置在每个定子级上由爪极和芯背包围的空间中; 以及可转动地设置在与所述定子的爪极相对的位置的转子，以及与至少所述两个定子级中的至少一个相对应地设置在多个相位上的定子绕组。

公开(公告)号：EP1931013A2

公开(公告)日：2008-06-11

申请号：EP07023675.7

申请日：2007-12-06

申请人： Hitachi, Ltd.

发明人： Ishikawa, Toshio ,  Yabuki, Minoru ,  Kanazawa, Hiroshi ,  Enomoto, Yuji ,  Ishikawa, Yoshihisa

IPC分类号： H02K1/14 ,  H02K19/22

CPC分类号： H02K1/145 ,  H02K1/243 ,  H02K9/06 ,  H02K19/22 ,  H02K2201/06

摘要： It is an object of the present invention to make it possible to easily wind a stator winding (17b), enhance an occupied ratio in a stator core (17a), reduce a winding resistance because there is no coil end, and change a field magnetic flux in accordance with a use.
Stator pawl magnetic poles (17a-2) of a stator core (17a) extend from both sides in an axial direction alternately at locations opposed to a rotor (12) to form a plurality of magnetic poles. With this stator core (17a), it is only necessary to annularly wind a stator winding (17b). Therefore, it is possible to enhance operability and an occupied ratio, and since there is no coil end, it is possible to reduce winding resistance. Since the rotor (12) is a Randall type rotor having a field winding (14) and a rotor pawl magnetic pole (12b), it is possible to change the field magnetic flux in accordance with a use.

摘要翻译： 本发明的目的是使定子绕组（17b）容易卷绕，提高定子铁心（17a）的占有率，减少卷绕阻力，因为没有线圈端，并且改变磁场磁场 助焊剂按照使用。 定子铁心（17a）的定子爪磁极（17a-2）在与转子（12）相对的位置交替地沿轴向方向从两侧延伸，以形成多个磁极。 利用该定子铁心（17a），仅需要环形地缠绕定子绕组（17b）。 因此，可以提高可操作性和占有率，并且由于不存在线圈端，因此可以降低绕组阻力。 由于转子（12）是具有励磁绕组（14）和转子棘爪磁极（12b）的兰德尔型转子，因此可以根据用途改变励磁磁通量。