公开(公告)号：US20160336891A1

公开(公告)日：2016-11-17

申请号：US15154268

申请日：2016-05-13

Applicant: DENSO CORPORATION

Inventor： Masahiro SEGUCHI

IPC: H02P25/03 ,  H02K19/00

CPC classification number: H02P25/03 ,  H02K19/12 ,  H02K19/28 ,  H02K2201/03 ,  H02P2207/05

Abstract: A field winding type synchronous machine has a stator having a stator core to which a stator coil is wound, and a rotor that rotates while facing a peripheral surface of the stator with an electromagnetic gap therebetween. The rotor includes a rotor core having a plurality of main pole portions and interpole portions, main pole windings wound around the main pole portions, interpole windings wound around the interpole portions, and a full-wave rectifier circuit for energizing the field current to the main pole windings. The interpole windings produce the induced current by a magnetic flux generated by a time harmonic current superimposed on a fundamental wave of the stator coil. The electromagnetic gaps between the interpole portions and a circumferential surface of the stator are configured larger than electromagnetic between the main pole portions and the circumferential surface of the stator.

Abstract translation: 励磁绕组式同步电机具有定子，该定子具有卷绕定子线圈的定子铁芯和转子，该转子在与定子的外周面之间具有电磁间隙的同时旋转。 转子包括具有多个主极部分和极间部分的转子铁芯，缠绕在主极部分上的主极绕组，缠绕在极间部分上的极间绕组，以及用于将励磁电流通向主电路的全波整流电路 极绕组。 极间绕组通过叠加在定子线圈的基波上的时间谐波电流产生的磁通产生感应电流。 定子的极间部和周面之间的电磁间隙构成为比主极部和定子的周面的电磁更大。

公开(公告)号：US20140375156A1

公开(公告)日：2014-12-25

申请号：US14314502

申请日：2014-06-25

Applicant: DENSO CORPORATION

Inventor： Shinsuke SUGIURA ,  Yuki TAKAHASHI ,  Masahiro SEGUCHI

IPC: H02K3/28

CPC classification number: H02K3/50 ,  H02K3/12 ,  H02K3/28 ,  H02K3/38 ,  H02K3/52 ,  H02K3/522

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。

公开(公告)号：US20140125187A1

公开(公告)日：2014-05-08

申请号：US14073042

申请日：2013-11-06

Applicant: DENSO CORPORATION

Inventor： Hideaki SUZUKI ,  Masahiro SEGUCHI ,  Yuki TAKAHASHI ,  Shinsuke SUGIURA

IPC: H02K3/28

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.

Abstract translation: 在具有定子铁芯和相绕组的定子中，在定子铁芯中形成有槽，并且每个槽在定子铁芯的径向方向上容纳从槽的一端到另一端的层结构中的导体。 一相中的相绕组具有容纳在定子芯中相邻形成的第一槽和第二槽中的导体。 第n层中的导体与第（n + 1）层中的导体之间的电连接包括容纳在第一槽中的导体电连接在一起，容纳在第二槽中的导体电连接在一起 并且容纳在第一槽中的导体与容纳在第二槽中的导体电连接。 该连接消除了分布式绕组结构中的第一槽和第二槽中的相位差。

公开(公告)号：US20200373822A1

公开(公告)日：2020-11-26

申请号：US16989015

申请日：2020-08-10

Applicant: DENSO CORPORATION

Inventor： Masahiro SEGUCHI

IPC: H02K19/28 ,  H02K21/04 ,  H02K3/46 ,  H02K11/049 ,  H02K11/33

Abstract: In a rotating electric machine, a stator includes a stator winding, a field winding includes a series-connection body including a plurality of winding portions, and a rotor includes main pole portions protruding from a rotor core in a radial direction. A harmonic current for inducing a field current in the field winding flows to the stator winding. A rectifying element is connected in series to the field winding, configures a closed circuit with the field winding, and rectifies the field current that flows to the field winding to flow in one direction. In a capacitor, a first end is connected to a connection point between adjacent winding portions and a second end is connected to either of both ends of the rectifying element. A partitioning portion is disposed between at least a single set of adjacent winding portions among the plurality of winding portions and includes a magnetic material.

公开(公告)号：US20170179864A1

公开(公告)日：2017-06-22

申请号：US15383439

申请日：2016-12-19

Applicant: DENSO CORPORATION

Inventor： Masahiro SEGUCHI

IPC: H02P25/03 ,  H02P25/22 ,  H02P27/06 ,  H02K1/14 ,  H02K1/26

CPC classification number: H02P25/03 ,  H02K1/146 ,  H02K1/26 ,  H02K3/28 ,  H02K11/33 ,  H02K19/10 ,  H02K19/12 ,  H02K2213/12 ,  H02P9/14 ,  H02P9/38 ,  H02P25/22 ,  H02P27/06

Abstract: A field winding synchronous machine drive system includes a field winding synchronous machine having a stator and a rotor and a drive apparatus configured to drive the field winding synchronous machine. The stator has N m-phase stator coils wound on a stator core to create a rotating magnetic field, where N is an integer not less than 2 and m is an integer not less than 3. The rotor has at least one main field winding wound on a rotor core to create field magnetic flux. The drive apparatus includes N inverters each of which supplies m-phase alternating current to a corresponding one of the N m-phase stator coils. Specifically, each of the inverters supplies the corresponding m-phase stator coil with the m-phase alternating current which includes a fundamental-wave current and a time-harmonic current superimposed on the fundamental-wave current; the time-harmonic current has a shorter period than the fundamental-wave current.

公开(公告)号：US20150326086A1

公开(公告)日：2015-11-12

申请号：US14707799

申请日：2015-05-08

Applicant: DENSO CORPORATION

Inventor： Yuki TAKAHASHI ,  Masahiro SEGUCHI

IPC: H02K3/34 ,  H02K9/19 ,  H02K3/12 ,  H02K3/30 ,  H02K3/38

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.

Abstract translation: 定子包括环形定子芯，定子线圈和树脂粘合剂。 定子线圈由多条电线构成。 电线被部分地接收在定子铁芯的槽中，使得定子线圈具有分别从定子铁心的相对的轴向端面突出到槽的外侧的一对线圈端部。 树脂粘合剂填充在定子芯的槽中和/或施加到定子线圈的线圈端部上。 此外，每个电线包括电导体和覆盖电导体的外表面的绝缘涂层。 绝缘涂层是双层结构的，包括内涂层和外涂层。 外涂层对树脂粘合剂的粘合强度低于内涂层与树脂粘合剂的粘合强度。

公开(公告)号：US20140191629A1

公开(公告)日：2014-07-10

申请号：US14147631

申请日：2014-01-06

Applicant: DENSO CORPORATION

Inventor： Yuki TAKAHASHI ,  Hideaki SUZUKI ,  Masahiro SEGUCHI

IPC: H02K11/00

CPC classification number: H02K11/25 ,  H02K3/34 ,  H02K3/345 ,  H02K3/48 ,  H02K11/00 ,  H02K11/20 ,  H02K2213/03

Abstract: A stator includes a stator core, a winding, and a temperature sensor. In the stator core, a plurality of slots are formed in a circumferential direction of the stator. The winding is formed by a plurality of conductors which are housed in the slots and are electrically connected. The slots are formed such that a predetermined number of the conductors are housed and arrayed in a radial direction of the stator. The temperature sensor is located in at least one of the slots and detects temperature of the conductors.

Abstract translation: 定子包括定子芯，绕组和温度传感器。 在定子铁心中，在定子的圆周方向上形成有多个槽。 绕组由容纳在槽中并电连接的多个导体形成。 这些槽形成为使得预定数量的导体容纳并排列在定子的径向方向上。 温度传感器位于至少一个槽中，并检测导体的温度。

公开(公告)号：US20140184012A1

公开(公告)日：2014-07-03

申请号：US14142425

申请日：2013-12-27

Applicant: DENSO CORPORATION

Inventor： Masahiro SEGUCHI ,  Shinsuke SUGIURA ,  Hideaki SUZUKI ,  Hideyuki YAGI

IPC: H02K3/34

CPC classification number: H02K3/50 ,  H02K3/38

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。

公开(公告)号：US20130334910A1

公开(公告)日：2013-12-19

申请号：US13845546

申请日：2013-03-18

Applicant: DENSO CORPORATION

Inventor： Yuki TAKAHASHI ,  Masahiro SEGUCHI ,  Hideaki SUZUKI

IPC: H02K9/22 ,  H02K15/03

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。