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公开(公告)号：US09570995B2
公开(公告)日：2017-02-14
申请号：US14848910
申请日：2015-09-09
发明人： Shuntaro Inoue , Kenichi Takagi , Takahide Sugiyama , Masaru Sugai , Kenichiro Nagashita , Fumiki Tanahashi
CPC分类号： H02M3/33546 , H01F27/245 , H01F27/255 , H01F27/2823 , H01F27/2847 , H02M3/158 , H02M3/33584 , H02M3/3372 , H02M2001/009 , H02M2001/123
摘要： A magnetically coupled reactor includes a coupled core member, a first coil, and a second coil. The coupled core member includes a first core and a second core made of a magnetic material and disposed to face each other, a coil channel, and a sheet-like magnetic body by which a coupling portion between cores is put between the first core and the second core at an outer portion of the first and second cores. Each coil is wound around a leg through the coil channel in a lap winding manner such that the coils are overlapped on top of each other in the coil channel when seen in an axial direction. The sheet-like magnetic body extends from the coupling portion between coils into the coil channel and includes a portion arranged between coils located between the coils in the axial direction.
摘要翻译： 磁耦合电抗器包括耦合的芯构件，第一线圈和第二线圈。 耦合芯体包括第一芯和由磁性材料制成并彼此相对配置的第二芯，线圈通道和片状磁体，芯之间的耦合部分通过该芯体放置在第一芯和第二芯之间 第二芯在第一和第二芯的外部。 每个线圈以卷绕方式通过线圈通道缠绕在腿上，使得当沿轴向方向看时，线圈在线圈通道中彼此重叠。 片状磁体从线圈之间的耦合部分延伸到线圈通道中，并且包括在轴向方向上位于线圈之间的线圈之间的部分。
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公开(公告)号：US20150085533A1
公开(公告)日：2015-03-26
申请号：US14493929
申请日：2014-09-23
发明人： Fumiki Tanahashi
CPC分类号： H01F38/08 , H01F3/14 , H02M1/10 , H02M3/33561 , H02M3/33584
摘要： A reactor includes a magnetic core; a first coil wound around the magnetic core; a second coil wound around the magnetic core; and a magnetic body that is provided between the first coil and the second coil separate from the magnetic core, and that reduces a coupling coefficient between the first coil and the second coil.
摘要翻译： 反应器包括磁芯; 缠绕在磁芯上的第一线圈; 围绕磁芯缠绕的第二线圈; 以及设置在第一线圈和第二线圈之间的与磁芯分离的磁体，并且减小了第一线圈和第二线圈之间的耦合系数。
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公开(公告)号：US10910981B2
公开(公告)日：2021-02-02
申请号：US16297157
申请日：2019-03-08
发明人： Fumiki Tanahashi
IPC分类号： H02P27/06 , H02M7/5387 , H02P29/028 , H02P29/60 , H02M1/32 , H02P29/024 , H02M7/539 , H02P29/68 , H02M3/158 , H02M1/00
摘要： An electric power conversion system includes: an inverter; a voltage converter including a high-voltage end connected to a direct-current power source and a low-voltage end connected to the inverter; and a controller. The controller is configured to control switching elements such that a voltage of the low-voltage end becomes lower than a voltage of the high-voltage end in a first state. The controller is configured to control the switching elements such that the voltage of the low-voltage end becomes equal to the voltage of the high-voltage end in a second state.
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公开(公告)号：US11695314B2
公开(公告)日：2023-07-04
申请号：US17342637
申请日：2021-06-09
发明人： Fumiki Tanahashi
摘要： An electric drive unit includes a multi-phase AC motor including a plurality of first terminals, and a power converter including a plurality of second terminals. The power converter is fixed to an electric motor case so as to partially overlap the AC motor in an axial direction with a wall portion interposed therebetween. Each first terminal includes a first extended portion extending from the stator along the axial direction, and a first fastening portion. Each second terminal includes a second extended portion extending along an extending direction at a portion of the power converter that does not overlap the AC motor in the axial direction; and a second fastening portion. The electric motor case includes a communication hole formed in the wall portion, and a service hole formed in a portion located on an extension line of the fastener parallel to an insertion direction of the fastener.
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公开(公告)号：US09748833B2
公开(公告)日：2017-08-29
申请号：US14641834
申请日：2015-03-09
发明人： Shoichi Shono , Masafumi Uchihara , Naoto Hasegawa , Mitsuhiro Miura , Fumiki Tanahashi , Jun Muto
摘要： A power conversion apparatus includes a transformer; a primary side full bridge circuit provided on a primary side of the transformer; a first port connected to the primary side full bridge circuit; a second port connected to a center tap of the primary side of the transformer; a secondary side full bridge circuit provided on a secondary side of the transformer; a third port connected to the secondary side full bridge circuit; and a control unit configured to cause an upper arm of the secondary side full bridge circuit to operate in an active region in a case where a capacitor connected to the third port is charged with a transmitted power transmitted to the secondary side full bridge circuit via the transformer from the primary side full bridge circuit when power of the second port is stepped up and the stepped up power is output to the first port.
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公开(公告)号：US20160079873A1
公开(公告)日：2016-03-17
申请号：US14848910
申请日：2015-09-09
发明人： Shuntaro Inoue , Kenichi Takagi , Takahide Sugiyama , Masaru Sugai , Kenichiro Nagashita , Fumiki Tanahashi
IPC分类号： H02M3/335 , H01F27/28 , H01F27/245
CPC分类号： H02M3/33546 , H01F27/245 , H01F27/255 , H01F27/2823 , H01F27/2847 , H02M3/158 , H02M3/33584 , H02M3/3372 , H02M2001/009 , H02M2001/123
摘要： A magnetically coupled reactor includes a coupled core member, a first coil, and a second coil. The coupled core member includes a first core and a second core made of a magnetic material and disposed to face each other, a coil channel, and a sheet-like magnetic body by which a coupling portion between cores is put between the first core and the second core at an outer portion of the first and second cores. Each coil is wound around a leg through the coil channel in a lap winding manner such that the coils are overlapped on top of each other in the coil channel when seen in an axial direction. The sheet-like magnetic body extends from the coupling portion between coils into the coil channel and includes a portion arranged between coils located between the coils in the axial direction.
摘要翻译： 磁耦合电抗器包括耦合的芯构件，第一线圈和第二线圈。 耦合芯体包括第一芯和由磁性材料制成并彼此相对配置的第二芯，线圈通道和片状磁体，芯之间的耦合部分通过该芯体放置在第一芯和第二芯之间 第二芯在第一和第二芯的外部。 每个线圈以卷绕方式通过线圈通道缠绕在腿上，使得当沿轴向方向看时，线圈在线圈通道中彼此重叠。 片状磁体从线圈之间的耦合部分延伸到线圈通道中，并且包括在轴向方向上位于线圈之间的线圈之间的部分。
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公开(公告)号：US09793791B2
公开(公告)日：2017-10-17
申请号：US14641834
申请日：2015-03-09
发明人： Shoichi Shono , Masafumi Uchihara , Naoto Hasegawa , Mitsuhiro Miura , Fumiki Tanahashi , Jun Muto
CPC分类号： H02M1/36 , B60L3/003 , B60L11/1868 , B60L2210/10 , B60L2240/525 , B60L2240/526 , B60L2240/527 , B60L2240/529 , H02M3/33561 , H02M3/33584 , Y02T10/7005 , Y02T10/7066 , Y02T10/7216
摘要： A power conversion apparatus includes a transformer; a primary side full bridge circuit provided on a primary side of the transformer; a first port connected to the primary side full bridge circuit; a second port connected to a center tap of the primary side of the transformer; a secondary side full bridge circuit provided on a secondary side of the transformer; a third port connected to the secondary side full bridge circuit; and a control unit configured to cause an upper arm of the secondary side full bridge circuit to operate in an active region in a case where a capacitor connected to the third port is charged with a transmitted power transmitted to the secondary side full bridge circuit via the transformer from the primary side full bridge circuit when power of the second port is stepped up and the stepped up power is output to the first port.
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公开(公告)号：US11316408B2
公开(公告)日：2022-04-26
申请号：US17103956
申请日：2020-11-25
发明人： Akira Hibino , Fumiki Tanahashi
摘要： The cooling apparatus uses oil to cool an electric motor whose output is transmitted to a drive shaft inserted into a motor shaft via a reduction gear and a differential gear. An oil seal seals the gap between the differential case of the differential gear and the outer peripheral surface of the drive shaft. An oil passage is formed inside the drive shaft. An oil introduction hole is formed in the drive shaft on the side of the differential gear with respect to the oil seal to introduce oil from the differential gear into the in-drive-shaft oil passage. An oil outlet hole is formed in the drive shaft on the side of the electric motor with respect to the oil seal to draw oil from the in-drive-shaft oil passage to the inside of the motor shaft.
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公开(公告)号：US11161418B2
公开(公告)日：2021-11-02
申请号：US16692303
申请日：2019-11-22
IPC分类号： B60L15/20
摘要： A control device of an electric vehicle includes: a target rotation speed calculation unit that calculates a target rotation speed of a drive wheel based on a vehicle body speed; and a slip control unit that detects a slip of the drive wheel when a wheel speed exceeds the target rotation speed of the drive wheel and that controls motor torque of the motor in such a manner that the wheel speed becomes an appropriate rotation speed in detection of the slip. Further, the slip control unit controls the motor torque by feedback control according to a difference between the rotation speed of the motor and the target rotation speed of the drive wheel in detection of the slip.
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公开(公告)号：US10903000B2
公开(公告)日：2021-01-26
申请号：US15928211
申请日：2018-03-22
发明人： Fumiki Tanahashi
摘要： A method of manufacturing a reactor that includes a reactor and a pair of core segments. The method includes mounting the reactor coil onto the pair of core segments, and placing the core segments face to face, with a thermosetting adhesive sandwiched there between. The method further includes placing a heating core such that one end of the heating core around which a heating coil is wound faces one of the core segments, and the other end of the heating core faces the other core segment; producing heat in the core segments by an alternating magnetic flux; and binding together the core segment by a temperature rise and cure of the thermosetting adhesive.
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