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公开(公告)号：US11870312B2
公开(公告)日：2024-01-09
申请号：US17205026
申请日：2021-03-18
Applicant: DENSO CORPORATION
Inventor： Masahiro Seguchi
CPC classification number: H02K3/28 , H02K1/22 , H02K2213/03
Abstract: A field coil type rotating electric machine includes a field coil having first and second windings connected in series with each other, a rotor having main poles on which the first and second windings are wound, and a stator having a stator coil comprised of phase windings to which harmonic currents are respectively supplied to induce field current in the field coil. In the rotor, there are formed a series resonant circuit including the first winding and a capacitor and a parallel resonant circuit including the second winding and the capacitor. The first winding is radially located closer to the stator than the second winding is. Moreover, N1
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公开(公告)号：US09391480B2
公开(公告)日：2016-07-12
申请号：US14142425
申请日：2013-12-27
Applicant: DENSO CORPORATION
Inventor： Masahiro Seguchi , Shinsuke Sugiura , Hideaki Suzuki , Hideyuki Yagi
Abstract: A rotating electric machine includes a rotor, a stator and an Insulating resin. The stator includes a stator core and a stator coil that is partially received in slots of the stator core so as to have a pair of coil end parts protruding outside of the slots respectively on opposite axial sides of the stator core. The stator coil is formed of a plurality of electric wire segments, each of which includes an electric conductor and an Insulating coat that covers an outer surface of the electric conductor. The insulating resin is applied to the coil end parts of the stator coil so as to cover the outer surfaces of the insulating coats of the electric wire segments forming the stator coil. Further, a tensile strength of the insulating coats of the electric wire segments is higher than an adhesion strength between the insulating resin and the insulating coats.
Abstract translation: 旋转电机包括转子，定子和绝缘树脂。 定子包括定子芯和定子线圈，该定子线圈部分地容纳在定子芯的槽中，以便分别在定子芯的相对的轴向侧上突出到槽的外侧的一对线圈端部。 定子线圈由多个电线段形成，每个电线段包括电导体和覆盖电导体的外表面的绝缘涂层。 将绝缘树脂施加到定子线圈的线圈端部，以覆盖形成定子线圈的电线段的绝缘外套的外表面。 此外，电线段的绝缘涂层的拉伸强度高于绝缘树脂和绝缘涂层之间的粘合强度。
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公开(公告)号：US09831731B2
公开(公告)日：2017-11-28
申请号：US14073042
申请日：2013-11-06
Applicant: DENSO CORPORATION
Inventor： Hideaki Suzuki , Masahiro Seguchi , Yuki Takahashi , Shinsuke Sugiura
CPC classification number: H02K3/28 , H02K3/12 , H02K2213/03
Abstract: In a stator having a stator core and phase windings, slots are formed in the stator core and each slot accommodates conductors in a layer structure from one end to the other end of the slot in a radial direction of the stator core. The phase windings in one phase have conductors accommodated in a first slot and a second slot which are adjacently formed in the stator core. An electrical connection between the conductors in a n-th layer and the conductors in a (n+1)-th layer includes that the conductors accommodated in the first slot are electrically connected together, the conductors accommodated in the second slot are electrically connected together, and the conductors accommodated in the first slot are electrically connected with the conductors accommodated in the second slot. This connection eliminates a phase difference in the first slot and the second slot in a distributed winding structure.
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公开(公告)号：US09647502B2
公开(公告)日：2017-05-09
申请号：US14707799
申请日：2015-05-08
Applicant: DENSO CORPORATION
Inventor： Yuki Takahashi , Masahiro Seguchi
CPC classification number: H02K3/12 , H02K3/30 , H02K3/34 , H02K3/345 , H02K3/38 , H02K3/50 , H02K9/19 , H02K2213/03
Abstract: A stator includes an annular stator core, a stator coil and a resin adhesive. The stator coil is comprised of a plurality of electric wires. The electric wires are partially received in slots of the stator core so that the stator coil has a pair of coil end parts protruding outside the slots respectively from opposite axial end faces of the stator core. The resin adhesive is filled in the slots of the stator core and/or applied to the coil end parts of the stator coil. Moreover, each of the electric wires includes an electric conductor and an insulating coat that covers an outer surface of the electric conductor. The insulating coat is two-layer structured to include an inner coat and an outer coat. The adhesion strength of the outer coat to the resin adhesive is lower than the adhesion strength of the inner coat to the resin adhesive.
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公开(公告)号：US11050330B2
公开(公告)日：2021-06-29
申请号：US16296962
申请日：2019-03-08
Applicant: DENSO CORPORATION
Inventor： Masahiro Seguchi
IPC: H02K19/26 , H02K19/12 , H02K1/26 , H02P25/03 , H02K1/16 , H02K3/12 , H02K3/48 , H02K11/028 , H02K11/042 , H02K19/36 , H02M7/217
Abstract: A field winding type rotary machine includes a stator having a stator core and a stator coil wound on the stator core, a rotor having a rotor core and a rotor field coil wound on the rotor core, and a rectifier element connected between both ends of the rotor field coil. The field winding type rotary machine includes a capacitor having a first terminal connected to an anode terminal of the rectifier element and a second terminal connected to any point of the rotor field coil.
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Patent Agency Ranking
公开(公告)号：US10756661B2
公开(公告)日：2020-08-25
申请号：US16440263
申请日：2019-06-13
Applicant: DENSO CORPORATION
Inventor： Masahiro Seguchi , Junichi Nakazono
Abstract: A field winding type rotating electric machine, whose power factor is cos θ, includes a stator, a rotor with a field winding, a rectifying element, a drive unit and a control unit. When performing rectangular-wave or overmodulation energization, the control unit generates a voltage pulse pair, which induces a current pulse pair, by: setting a reference time to the center of an ON duration or OFF duration of a control signal of a first phase; and providing a temporary ON duration and a temporary OFF duration after a predetermined angle from the reference time. The predetermined angle is within a predetermined range including cos−1 θ in electrical angle. The temporary ON duration is provided to temporarily turn ON a control signal of a second phase during an OFF duration thereof. The temporary OFF duration is provided to temporarily turn OFF a control signal of a third phase during an ON duration thereof.
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公开(公告)号：US09673674B2
公开(公告)日：2017-06-06
申请号：US14073023
申请日：2013-11-06
Applicant: DENSO CORPORATION
Inventor： Yuki Takahashi , Masahiro Seguchi , Hideaki Suzuki
CPC classification number: H02K3/28 , H02K3/12 , H02K2213/03
Abstract: In a stator having a stator core and three phase windings, slots are formed in the stator core. The phase winding are accommodated in layers, from one side to the other side in the corresponding slot along a radial direction of the stator core. The phase windings are arranged in a star-delta composite connection structure. The phase winding in each phase is comprised of conductors accommodated in a first slot and a second slot adjacently arranged in the stator core so that the conductor in the n-th layer is electrically connected to the conductor in the (n+1)-th layer, ascending order, per slot. Because each winding has the same length and no difference in electric potential occurs between the star connection and the delta connection, this structure suppress generation of operation noise and a circulating current through the stator core and prevents loss due to the circulating current.
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公开(公告)号：US09484790B2
公开(公告)日：2016-11-01
申请号：US13845546
申请日：2013-03-18
Applicant: DENSO CORPORATION
Inventor： Yuki Takahashi , Masahiro Seguchi , Hideaki Suzuki
CPC classification number: H02K9/22 , H02K1/2766 , H02K15/03 , H02K15/12 , Y10T29/49012
Abstract: A rotor for an electric rotating machine includes a hollow cylindrical rotor core and a plurality of magnets. The rotor core has a plurality of magnet-receiving holes formed therein. Each of the magnet-receiving holes has a plurality of wall surfaces including a radially innermost wall surface which is positioned radially innermost among the plurality of wall surfaces. Each of the magnets is received in a corresponding one of the magnet-receiving holes of the rotor core. Further, each of the magnets is arranged in the corresponding magnet-receiving hole so that among the thermal resistances between the magnet and the plurality of wall surfaces of the corresponding magnet-receiving hole, the thermal resistance between the magnet and the radially innermost wall surface of the corresponding magnet-receiving hole is lowest.
Abstract translation: 用于旋转电机的转子包括中空圆柱形转子芯和多个磁体。 转子芯具有形成在其中的多个磁体容纳孔。 每个磁体接收孔具有多个壁表面，其包括位于多个壁表面中径向最内侧的径向最内壁表面。 每个磁体被容纳在转子芯的相应的一个磁体容纳孔中。 此外，每个磁体被布置在相应的磁体容纳孔中，使得在磁体和相应的磁体容纳孔的多个壁表面之间的热阻之间，磁体和径向最内壁表面之间的热阻 相应的磁铁接收孔最低。
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公开(公告)号：US09373985B2
公开(公告)日：2016-06-21
申请号：US14314502
申请日：2014-06-25
Applicant: DENSO CORPORATION
Inventor： Shinsuke Sugiura , Yuki Takahashi , Masahiro Seguchi
Abstract: A stator includes an annular stator core and a three-phase stator coil. The stator coil is comprised of a plurality of star-connected phase windings. The stator coil further has a plurality of interphase bridging wires to electrically connect neutral point-side ends of the phase windings to each other. The interphase bridging wires are arranged on a coil end of the stator coil. At least one of the interphase bridging wires is made up of at least one busbar. The busbar includes three or four connecting end portions each having a joining surface joined to one of the phase windings, other bridging wires and other busbars. The connecting end portions are arranged so that some of the joining surfaces of the connecting end portions face substantially in the circumferential direction of the stator core, while the other joining surfaces face substantially in a radial direction of the stator core.
Abstract translation: 定子包括环形定子芯和三相定子线圈。 定子线圈由多个星形连接的相绕组构成。 定子线圈还具有多个相间桥接线，以将相绕组的中性点侧端彼此电连接。 相间桥接线布置在定子线圈的线圈端上。 至少一个相间桥接线由至少一个母线组成。 母线包括三个或四个连接端部，每个连接端部具有接合到相绕组中的一个，其它桥接线和其它母线的接合表面。 连接端部被布置成使得连接端部的一些接合表面基本上在定子芯的圆周方向上面对，而另一个接合表面基本上位于定子芯的径向方向上。
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公开(公告)号：US09236775B2
公开(公告)日：2016-01-12
申请号：US13861836
申请日：2013-04-12
Applicant: DENSO CORPORATION
Inventor： Yuki Takahashi , Masahiro Seguchi
CPC classification number: H02K1/274 , H02K1/276 , H02K1/2766 , H02K21/14 , H02K29/03 , H02K2201/06 , H02K2213/03
Abstract: A rotary electric machine includes a stator and a rotor located in a rotatable manner relative to the stator via a gap. The stator includes a multi-phase stator winding that is held in a plurality of slots formed in the stator. The rotor includes at least one magnet section embedded therein so as to face the slots. The magnet section includes a plurality of axially laminated magnets with a skew angle which is an angle of a positional difference between the magnets. This skew angle θs is set so as to satisfy θs=kα/2 where α is a slot pitch which is an angle between the slots, and k is a coefficient set based on: an arc ratio θa being an angle covering an area in which magnetic flux radially flows from the magnetic section; and a slot factor S being a ratio of the slots relative to the magnet section.
Abstract translation: 一种旋转电机包括定子和转子，该定子以相对于定子的间隙可转动地定位。 定子包括保持在形成在定子中的多个槽中的多相定子绕组。 转子包括嵌入其中的至少一个磁体部分以面对槽。 磁体部分包括多个轴向层叠的磁体，其具有作为磁体之间的位置差的角度的倾斜角度。 这个倾斜角度和设定为满足＆s1; s =kα/ 2，其中α是缝隙之间的角度的槽间距，而k是基于以下的系数集合：a是弧度比 覆盖磁通从磁性部分径向流动的区域的角度; 并且槽因子S是槽相对于磁体部分的比率。
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