公开(公告)号：EP3096441A4

公开(公告)日：2017-09-06

申请号：EP14878921

申请日：2014-01-17

申请人： MITSUBISHI ELECTRIC CORP

发明人： HORII MASAKI ,  SAKAUE ATSUSHI ,  INOUE MASAYA

IPC分类号： H02K3/24 ,  H02K1/20 ,  H02K1/32 ,  H02K3/12 ,  H02K3/14 ,  H02K3/28 ,  H02K3/50 ,  H02K5/20 ,  H02K9/19

CPC分类号： H02K3/24 ,  H02K1/20 ,  H02K1/32 ,  H02K3/12 ,  H02K3/14 ,  H02K3/28 ,  H02K3/50 ,  H02K5/20 ,  H02K9/19 ,  H02K2213/03

摘要： The present invention provides a compact, high-output rotary electric machine that can improve cooling of a stator winding by adapting a coil shape of a distributed-winding stator winding to make it easier for a liquid coolant to flow in a circumferential direction of coil ends. Winding bodies are produced by repeatedly winding a ´-shaped coil pattern that is formed by inserting the conductor wire sequentially into a second slot, a first slot, a second slot, and a third slot, so as to alternate an axial direction of insertion into the first slot, the second slot, and the third slot, for two turns in a radial direction, and are configured such that a plurality of rectilinear portions that are respectively inserted into the first slot, the second slot, and the third slot are linked continuously by coil end portions, and a liquid coolant is supplied to a coil end that is constituted by the coil end portions.

摘要翻译： 本发明提供一种紧凑且高输出的旋转电机，其通过适应分布式绕组定子绕组的线圈形状以使得液体冷却剂更容易沿线圈端部的圆周方向流动，从而能够改善定子绕组的冷却 。 通过将通过将导体线顺序地插入到第二槽，第一槽，第二槽和第三槽中形成的'形线圈图案反复缠绕以使插入的轴向方向交替地缠绕而形成卷绕体 所述第一槽，所述第二槽和所述第三槽在径向方向上转动两圈，并且被构造成使得分别插入到所述第一槽，所述第二槽和所述第三槽中的多个直线部分被链接 连续地通过线圈端部，并且液体冷却剂被供应到由线圈端部构成的线圈端部。

公开(公告)号：EP3136557A4

公开(公告)日：2017-12-13

申请号：EP14893469

申请日：2014-05-27

申请人： MITSUBISHI ELECTRIC CORP

发明人： HORII MASAKI ,  HIGASHINO HIROYUKI

IPC分类号： H02K9/19 ,  H02K3/24 ,  H02K5/20

CPC分类号： H02K9/19 ,  H02K1/12 ,  H02K3/24 ,  H02K5/20 ,  Y02T10/641

摘要： The present invention provides a rotary electric machine that reduces pressure loss and minimizes pumping power by making a surface of a cooling oil channel that faces a coil into an opening, and that also suppresses temperature increases in the coil and enables reductions in size to be achieved by changing cooling oil that flows through the cooling oil channel into an axial flow so as to be supplied between the coils using oil flow direction changing projections. The rotary electric machine according to the present invention includes: an annular cooling oil channel that is configured inside an externally mounted frame so as to face axially toward a plurality of coils that are arranged in an annular shape and such that a surface that faces the plurality of coils is made into an opening; an oil pump; a nozzle that sprays cooling oil that is conveyed under pressure from the oil pump into the cooling oil channel from above; and a plurality of oil flow direction changing projections that are respectively disposed inside the cooling oil channel and are arranged circumferentially so as to face gaps between the coils and such that cooling oil receiving surfaces face upstream in a direction of flow of the cooling oil so as to change the cooling oil that flows through the cooling oil channel to an axial flow so as to be supplied to the gaps between the coils.

公开(公告)号：EP3068021A4

公开(公告)日：2017-07-19

申请号：EP13899228

申请日：2013-12-13

申请人： MITSUBISHI ELECTRIC CORP

发明人： HORII MASAKI ,  INOUE MASAYA ,  KITTA YOSHIAKI

IPC分类号： H02K1/27 ,  H02K1/32 ,  H02K9/19

CPC分类号： H02K1/32 ,  H02K1/274 ,  H02K1/2766 ,  H02K1/28 ,  H02K9/19 ,  H02K2201/06 ,  H02K2213/03

摘要： The present invention provides an embedded permanent magnet rotary electric machine that suppresses reductions in magnetic flux from permanent magnets, and that can also cool permanent magnets effectively. In this embedded permanent magnet rotary electric machine, a coolant flow channel is formed so as to pass axially through a rotor core radially inside magnet housing apertures, a linking flow channel is formed so as to have a flow channel width that is narrower than a maximum flow channel width of the coolant flow channel, so as to link the coolant flow channel and the magnet housing apertures, and so as to pass axially through the rotor core, and permanent magnets are fixed to an inner wall surface of the magnet housing apertures by an adhesive that is disposed only between a wall surface of the permanent magnets that is positioned on a radially outer side of the permanent magnets and the inner wall surface of the magnet housing apertures so as to expose a region of a wall surface of the permanent magnets that is positioned on a radially inner side that faces the linking flow channel.

摘要翻译： 本发明提供一种嵌入式永磁体旋转电机，其抑制来自永磁体的磁通量的减少，并且还可以有效地冷却永磁体。 在该埋入式永久磁铁式旋转电机中，形成有冷却剂流路，该冷却剂流路在轴向上贯通转子铁芯而在磁体收纳孔的内侧沿径向延伸，形成流路宽度比最大 冷却剂流动通道的流动通道宽度以连接冷却剂流动通道和磁体收纳孔，并且沿轴向穿过转子芯，并且永磁体通过以下方式固定到磁体容纳孔的内壁表面： 粘合剂，其仅设置在定位在永磁体的径向外侧上的永磁体的壁表面和磁体容纳孔的内壁表面之间，以暴露永磁体的壁表面的区域 其位于面对连接流动通道的径向内侧上。

公开(公告)号：EP3032709A4

公开(公告)日：2017-04-26

申请号：EP13891003

申请日：2013-08-05

申请人： MITSUBISHI ELECTRIC CORP

发明人： HORII MASAKI ,  INOUE MASAYA ,  KITTA YOSHIAKI

IPC分类号： H02K1/27 ,  H02K1/32 ,  H02K9/19 ,  H02K11/25

CPC分类号： H02K1/32 ,  H02K1/16 ,  H02K1/2766 ,  H02K1/30 ,  H02K9/19 ,  H02K11/25

摘要： The present invention provides an embedded permanent magnet rotary electric machine that can suppress reductions in magnetic flux from permanent magnets, and that can also cool permanent magnets efficiently. In this embedded permanent magnet rotary electric machine, a rotor 15 includes: a rotor core 17 that is configured by laminating and integrating electromagnetic steel sheets, and that is fixed to a shaft; a plurality of permanent magnet housing apertures 20 that are disposed circumferentially so as to be respectively formed so as to pass axially through an outer circumferential side of the rotor core 17; and permanent magnets 21 that are housed in each of the magnet housing apertures 20, an adhesive is disposed only between an outside wall surface 20a that is positioned on a radially outer side of an inner wall surface of the magnet housing apertures 20 and an outside surface 21a that is positioned on a radially outer surface of the permanent magnets 21 such that the permanent magnets 21 are fixed so as to be closer to the outside wall surface 20a of the magnet housing apertures 20, and cooling flow channels 23 through which a coolant is made to flow are formed by an inside surface 21b that is positioned on a radially inner side of a surface of the permanent magnets 21 and inside wall surfaces 20b that are positioned on a radially inner side of inner wall surfaces of the magnet housing apertures 20.

摘要翻译： 本发明提供一种嵌入式永磁体旋转电机，其能够抑制来自永磁体的磁通量的减少，并且还能够有效地冷却永磁体。 在该埋入式永磁体型旋转电机中，转子15具备：转子铁芯17，其通过层叠一体化电磁钢板而构成，固定于轴; 多个永久磁铁收容孔20，该多个永久磁铁收容孔20沿周向配置成分别形成为沿轴向贯通转子铁芯17的外周侧; 以及容纳在每个磁体容纳孔20中的永磁体21，粘合剂仅布置在位于磁体容纳孔20的内壁表面的径向外侧的外侧壁表面20a和位于磁体容纳孔20的内壁表面的外侧表面 21a，其位于永磁体21的径向外表面上，使得永磁体21被固定为更靠近磁体容纳孔20的外壁表面20a;以及冷却剂流动通道23，冷却剂 由位于永磁铁21的表面的径向内侧的内表面21b和位于磁铁容纳孔20的内壁表面的径向内侧的内壁表面20b形成。