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公开(公告)号：US11221235B2
公开(公告)日：2022-01-11
申请号：US16310172
申请日：2017-06-13
发明人： Rafal Jastrzebski , Kimmo Tolsa
摘要： A position sensor for sensing position or motion, includes: a ferrite core, and a sensor coil configured to provide a sensor signal. The sensor coil is implemented on a printed circuit board, and the ferrite core is configured to be fitted into the printed circuit board.
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公开(公告)号：US11286983B2
公开(公告)日：2022-03-29
申请号：US15737542
申请日：2016-05-11
发明人： Rafal Jastrzebski , Pekko Jaatinen
IPC分类号： H02P8/38 , H02P7/29 , F16C32/04 , H02P4/00 , H02P27/08 , H02K11/215 , H02P25/16 , H02P29/40 , H02K11/21 , G05B17/02 , H02K7/09
摘要： An electrical drive includes an electrical machine, a first converter stage connected to terminals of stator phase-windings of the electrical machine, and a second converter stage connected to intermediate points of the stator phase-windings. A control device determines first component currents and second component currents so that torque is generated in accordance with electrical machine control and magnetic levitation force is directed to a rotor of the electrical machine in accordance with levitation control when portions of the phase-windings between the terminals and the intermediate points carry both the first and second component currents and the other portions of the phase-windings carry the first component currents. The reference currents for the first converter stage are determined based on the first and second component currents, and the reference currents for the second converter stage are determined based on the second component currents.
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公开(公告)号：US09712011B2
公开(公告)日：2017-07-18
申请号：US13880185
申请日：2011-10-17
申请人： Juha Pyrhönen , Janne Nerg , Hanne Jussila , Yulia Alexandrova , Maria Polikarpova , Robert Scott Semken , Pekka Röyttä
发明人： Juha Pyrhönen , Janne Nerg , Hanne Jussila , Yulia Alexandrova , Maria Polikarpova , Robert Scott Semken , Pekka Röyttä
CPC分类号： H02K3/24 , H02K3/18 , H02K3/22 , H02K15/0414 , H02K15/065 , H02K15/066 , H02K2213/03 , H02K2213/12 , Y02E10/725
摘要： A stator of an electrical machine includes a stator core having a plurality of stator teeth and stator slots, and a stator winding having a plurality of stator coils. The width of each stator coil is one stator slot pitch, and the stator teeth are shaped to allow each stator coil to be installed by pushing the stator coil to surround one of the stator teeth. The stator coils include tubular cooling channels for conducting cooling liquid in the stator slots.
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公开(公告)号：US20210223064A1
公开(公告)日：2021-07-22
申请号：US16310172
申请日：2017-06-13
发明人： Rafal JASTRZEBSKI , Kimmo TOLSA
摘要： A position sensor for sensing position or motion, includes: a ferrite core, and a sensor coil configured to provide a sensor signal. The sensor coil is implemented on a printed circuit board, and the ferrite core is configured to be fitted into the printed circuit board.
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公开(公告)号：US20180012822A1
公开(公告)日：2018-01-11
申请号：US15543922
申请日：2015-12-30
发明人： Mika LOHTANDER , Leevi PAAJANEN , Tapani SIIVO , Antti JORTIKKA , Hannu YLISIURUA , Emma PAASONEN , Jyrki MONTONEN
IPC分类号： H01L23/473 , H01L23/10 , H01L21/48
CPC分类号： H01L23/473 , H01L21/4871 , H01L23/04 , H01L23/053 , H01L23/10 , H01L2924/0002 , H01L2924/00
摘要： A semiconductor module includes a baseplate, a cover element attached to the baseplate so that detaching the cover element from the baseplate requires material deformations, and a semiconductor element in a room defined by the baseplate and the cover element. The semiconductor element is in a heat conductive relation with the baseplate and an outer surface of the baseplate is provided with laser machined grooves suitable for conducting heat transfer fluid. The laser machining makes it possible to make the grooves after the semiconductor module has been assembled. Therefore, regular commercially available semiconductor modules can be modified, with the laser machining, to semiconductor modules as disclosed.
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公开(公告)号：US09765695B2
公开(公告)日：2017-09-19
申请号：US14441784
申请日：2013-11-05
发明人： Esa Saari , Jaakko Larjola , Juha Honkatukia
IPC分类号： F02C7/12 , F01D25/16 , F02C7/18 , F01D25/00 , H02K1/32 , F01D25/12 , F01D25/14 , F02C3/04 , F02C7/06 , F01D5/08 , H02K7/18 , F01D15/06 , F01D15/10
CPC分类号： F02C7/12 , F01D5/08 , F01D5/081 , F01D5/085 , F01D15/06 , F01D15/10 , F01D25/005 , F01D25/12 , F01D25/125 , F01D25/14 , F01D25/145 , F02C3/04 , F02C7/06 , F05D2220/76 , F05D2220/768 , F05D2250/82 , F05D2300/171 , F05D2300/172 , F05D2300/5024 , H02K1/32 , H02K7/1823 , Y02T50/671 , Y02T50/673 , Y02T50/676
摘要： A gas turbine arrangement, including a gas generator section (A), a power turbine section (B), and a generator section (C) coupled on a common shaft (10). The power turbine has its bearing block (12) provided with a copper cooling cup (9), which possesses a high thermal conductivity and conveys heat flux away from the side and block of the bearing and which has a design that enables the effect of a penetrating airflow.
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公开(公告)号：US20130285487A1
公开(公告)日：2013-10-31
申请号：US13880185
申请日：2011-10-17
申请人： Juha Pyrhönen , Janne Nerg , Hanne Jussila , Yulia Alexandrova , Maria Polikarpova , Robert Scott Semken , Pekka Röyttä
发明人： Juha Pyrhönen , Janne Nerg , Hanne Jussila , Yulia Alexandrova , Maria Polikarpova , Robert Scott Semken , Pekka Röyttä
IPC分类号： H02K3/24
CPC分类号： H02K3/24 , H02K3/18 , H02K3/22 , H02K15/0414 , H02K15/065 , H02K15/066 , H02K2213/03 , H02K2213/12 , Y02E10/725
摘要： A stator of an electrical machine that is straightforward to assemble and for which an efficient liquid cooling can be arranged includes a stator core (801) having a plurality of stator teeth and stator slots, and a stator winding having a plurality of stator coils (803). The width of each stator coil is one stator slot pitch, and the stator teeth are shaped to allow each stator coil to be installed by pushing the stator coil to surround one of the stator teeth. The stator coils include tubular cooling channels (804) for conducting cooling liquid in the stator slots. The stator winding is designed by taking into account the aspects related to the liquid cooling, and it has been noticed that a stator winding structure which is advantageous for arranging the liquid cooling has satisfactory electrical and magnetic properties too.
摘要翻译： 可以直接组装并且可以布置有效的液体冷却的电机的定子包括具有多个定子齿和定子槽的定子铁心（801）和具有多个定子线圈的定子绕组（803 ）。 每个定子线圈的宽度是一个定子槽间距，并且定子齿被成形为允许通过推动定子线圈围绕其中一个定子齿来安装每个定子线圈。 定子线圈包括用于在定子槽中导入冷却液体的管状冷却通道（804）。 定子绕组是通过考虑与液体冷却相关的方面来设计的，并且已经注意到，有利于布置液体冷却的定子绕组结构也具有令人满意的电磁特性。
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公开(公告)号：US10262921B2
公开(公告)日：2019-04-16
申请号：US15543922
申请日：2015-12-30
发明人： Mika Lohtander , Leevi Paajanen , Tapani Siivo , Antti Jortikka , Hannu Ylisiurua , Emma Paasonen , Jyrki Montonen
IPC分类号： H01L23/473 , H01L23/04 , H01L23/10 , H01L21/48 , H01L23/053
摘要： A semiconductor module includes a baseplate, a cover element attached to the baseplate so that detaching the cover element from the baseplate requires material deformations, and a semiconductor element in a room defined by the baseplate and the cover element. The semiconductor element is in a heat conductive relation with the baseplate and an outer surface of the baseplate is provided with laser machined grooves suitable for conducting heat transfer fluid. The laser machining makes it possible to make the grooves after the semiconductor module has been assembled. Therefore, regular commercially available semiconductor modules can be modified, with the laser machining, to semiconductor modules as disclosed.
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公开(公告)号：US10214094B2
公开(公告)日：2019-02-26
申请号：US14912432
申请日：2014-08-18
发明人： Simo Sinkko , Tommi Nummelin , Anssi Suuronen , Juha Pyrhonen
摘要： An electric motor construction is provided with a planetary gear system, including an annular thin-rimmed stator (1) as well as a torque takeoff shaft (2) concentric relative thereto. The construction includes inside the stator (1) an annular thin-rimmed rotor (3); a sun gear (4) fixedly coupled to the rotor and concentric with the takeoff shaft (2); an intra-rotor immovably coupled ring gear (5) with a toothed inner surface; planet gears (6) meshing with the ring gear and the sun gear; a planet carrier (7) that the planet gears are supported on; as well as a coupling arrangement (8) for transmitting torque of the rotor optionally directly or by way of the planet carrier to the torque takeoff shaft.
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公开(公告)号：US09712009B2
公开(公告)日：2017-07-18
申请号：US14647169
申请日：2013-11-25
发明人： Timo Pukki , Jussi Sopanen , Aki Lipponen , Janne Nerg , Juha Pyrhonen
CPC分类号： H02K1/28 , H02K1/2706 , H02K1/2733 , H02K7/003 , H02K7/083 , H02K7/09 , H02K9/06
摘要： A rotor axle of a high speed permanent magnet machine including a first part and a second part, both manufactured from a magnetically non-conducting material. The parts include an inner end and an outer end, and they can be axially interconnected one after the other by the inner ends to constitute an integral rotor axle. Their outer ends include bearing structures to fit the rotor axle with bearings. A cylindrical and solid permanent magnet is provided coaxially with the first part and the second part in between them and magnetized perpendicularly to the axial direction of the cylinder. The inner end of the first part of the rotor axle includes a cylindrical external surface with an external thread, the inner end of the second part includes a cylinder sleeve having an internal base part corresponding in shape to the cylindrical permanent magnet to constitute a space for the permanent magnet.
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