公开(公告)号：EP2668710A1

公开(公告)日：2013-12-04

申请号：EP12738899.9

申请日：2012-01-25

申请人： Axco-Motors OY

发明人： PARVIAINEN, Asko ,  PIISPANEN, Ari

IPC分类号： H02K1/22 ,  H02K1/27 ,  H02K15/04 ,  H02K21/46

摘要： The invention relates to a joint between a copper short-circuiting ring (1) and a copper bar (2) of the damper winding in a permanent magnet synchronous machine, wherein the end of the bar is jointed to a hole (9) disposed in the short-circuiting ring by welding them together at the mating surfaces. Further, the invention relates to a corresponding method. According to the invention the short-circuiting ring (1) includes a blocking structure for limiting the heat flux from being conducted further into the short-circuiting ring from the weld between the short-circuiting ring and the bar.

摘要翻译： 本发明涉及永磁同步电机中的阻尼绕组的铜短路环（1）和铜杆（2）之间的接头，其中，所述杆的端部连接到设置在 短路环通过在配合表面焊接在一起。 此外，本发明涉及相应的方法。 根据本发明，短路环（1）包括阻挡结构，用于限制从短路环和杆之间的焊接进一步进入短路环的热通量。

公开(公告)号：EP1920523A1

公开(公告)日：2008-05-14

申请号：EP06794069.2

申请日：2006-08-31

申请人： Axco-Motors Oy

发明人： PIISPANEN, Ari ,  PARVIAINEN, Asko

IPC分类号： H02K5/20 ,  F04C29/04

CPC分类号： F04C23/00 ,  F04C18/16 ,  F04C29/0007 ,  F04C29/042 ,  F04C29/045 ,  H02K5/20 ,  H02K7/14 ,  H02K9/19

摘要： The invention relates to a cooling system for an aggregate set, in which the aggregate set comprises an axial flux electric machine (1) with a disc-like rotor (2) and a disc-like stator (3) , and a screw compressor (4) with cooling. In accordance with the invention the electric machine (1) essentially comprises an airtight sealed housing (5) , inside which the rotor (2) and the stator (3) are placed. In addition, the housing is also arranged with a cooling duct (6) , the fluid circulation of which is common with the cooling of the screw compressor, and the cooling system comprises a heat exchanger (7) after the compressor to reduce the fluid temperature before it returns to the cooling duct of the housing of the electric machine.

公开(公告)号：EP2143191A1

公开(公告)日：2010-01-13

申请号：EP08718551.8

申请日：2008-02-28

申请人： Axco-Motors Oy

发明人： PARVIAINEN, Asko ,  PIISPANEN, Ari

IPC分类号： H02K17/00

CPC分类号： H02K17/165

摘要： The invention relates to an axial flux induction electrical machine comprising a frame, a shaft (1) bearing-mounted to the frame, a disc-like rotor (2) supported to the shaft, a stator (4) comprising a stator winding (3) and supported by the frame on the first side of the rotor in axial direction. The disc- like rotor (2) comprises a non- ferromagnetic rotor frame (8) fabricated of a material with a high electrical conductivity and comprising a uniform inner periphery (9) and an outer periphery (10) and conductor bars (11) fabricated of the same material and galvanically connecting the peripheries (11). The conductor bars together with the inner and outer peripheries form in addition to the rotor frame also the cage winding of the rotor. Between the inner periphery and the outer periphery there is a plurality of ferromagnetic pieces (12) extending through the frame plate and being spaced apart from each other at an appropriate distance so that the radial conductor bars are appropriately located between the pieces. According to the invention, the ferromagnetic piece (12) has a surface plate (5, 15) on the surface against the stator, the resistivity of this surface plate being essentially higher than the resistivity of the ferromagnetic piece.

摘要翻译： 轴向磁通感应电机技术领域本发明涉及一种轴向磁通感应电机，包括框架，轴承安装到框架的轴（1），支撑到轴的盘状转子（2），定子（4），定子 ）并且由转子的第一侧上的框架在轴向方向上支撑。 盘状转子（2）包括由具有高导电率的材料制成并且包括均匀的内周边（9）和外周边（10）以及制造的导体条（11）的非铁磁转子框架（8） 使用相同的材​​料并电流连接外围（11）。 除了转子框架之外，导体条与内外圆周一起形成转子的笼绕组。 在内周和外周之间存在多个铁磁片（12），该铁磁片延伸穿过框架板并且以适当的距离彼此间隔开，使得径向导体棒适当地位于片之间。 根据本发明，铁磁件（12）在表面上具有抵靠定子的表面板（5,15），该表面板的电阻率实质上高于铁磁件的电阻率。