公开(公告)号：US20180022224A1

公开(公告)日：2018-01-25

申请号：US15657871

申请日：2017-07-24

Applicant: DENSO CORPORATION

Inventor： Keiji KONDO ,  Makoto TANIGUCHI ,  Asaka KIMURA

IPC: B60L11/18 ,  B60W20/13 ,  H02P9/00 ,  B60L11/02 ,  H02J7/14 ,  H02J7/00

CPC classification number: B60L11/1814 ,  B60L50/10 ,  B60L53/24 ,  B60W20/13 ,  B60W30/18127 ,  H02J7/0068 ,  H02J7/14 ,  H02J7/1423 ,  H02P9/008 ,  H02P2101/45 ,  Y02T10/7258 ,  Y10S903/93

Abstract: In an onboard charging apparatus, a plurality of main electric-power storage apparatuses are connected in series to one another. A main electric-power storage apparatus on a lowest potential side of the main electric-power storage apparatuses is a lowest potential electric-power storage apparatus. The lowest potential electric-power storage apparatus has a nominal voltage that is set to 12 V, and supplies electric power to an electrical component mounted to a vehicle. In the onboard charging apparatus, a connecting unit selectively connects, by switching control, the output terminal and any of high potential side terminals of the main electric-power storage apparatuses. A switching control unit controls switching of the connecting unit to switch the high potential side terminal selected as a connection destination of the output terminal among the high potential side terminals of the main electric-power storage apparatuses, based on an output voltage of the output terminal.

公开(公告)号：US20170353066A1

公开(公告)日：2017-12-07

申请号：US15612344

申请日：2017-06-02

Applicant: DENSO CORPORATION

Inventor： Akira FUKUSHIMA ,  Yuuki TAKAHASHI ,  Makoto TANIGUCHI

IPC: H02K1/24 ,  H02K1/28

CPC classification number: H02K1/243 ,  H02K1/28 ,  H02K21/044 ,  H02K2205/12

Abstract: In a rotor for a rotary electric machine, a claw pole assembly includes first claw poles and second claw poles. An annular cover member covers the outer circumferential surfaces of the first and second claw poles. The pole cover segments and the inter-pole cover segments are alternately arranged in the circumferential direction of the rotor. Each of the pole cover segments has a circular-arc shape around a first center, and each of the inter-pole cover segments has a circular-arc shape around a second center different from the first center. The first circumferential width of each pole cover segment and the second circumferential width of a corresponding one of the inter-pole segment adjacent to the pole cover segment have a predetermined ratio. The predetermined ratio varies in an axial direction of the rotor.

公开(公告)号：US20150145370A1

公开(公告)日：2015-05-28

申请号：US14549607

申请日：2014-11-21

Applicant: DENSO CORPORATION

Inventor： Makoto TANIGUCHI

IPC: H02K1/27 ,  H02K1/28 ,  B62D5/04

CPC classification number: H02K1/278 ,  B62D5/0403 ,  H02K29/03

Abstract: A rotor core has a regular decagon base portion in its cross section relative to a shaft center and ten convex portions each of which is located between each angle of the regular decagon base portion. Each convex portion has a first convex curve having a single curvature radius. Each permanent magnet is a curved plate and has a concave curve and a second convex curve. Each permanent magnet is provided so that the concave curve adheres on the first convex curve. When each permanent magnet moves in circumferential direction relative to the rotor core, the concave curve slides on the first convex curve of the rotor core. A position of the smallest gap clearance between the second convex curve and the stator does not change. A magnetic-flux-strength maximum position is not changed easily.

Abstract translation: 转子芯在其横截面上具有相对于轴心的正交十字形基部，并且十个凸部分别位于正十二进制基部的每个角之间。 每个凸部具有单曲率半径的第一凸曲线。 每个永磁体是弯曲板，并且具有凹曲线和第二凸曲线。 提供每个永磁体，使得凹曲线粘附在第一凸曲线上。 当每个永磁体相对于转子铁心在圆周方向上移动时，凹曲线在转子铁心的第一凸曲线上滑动。 第二凸曲线和定子之间的最小间隙的位置不变。 磁通强度最大位置不容易变化。

公开(公告)号：US20150054375A1

公开(公告)日：2015-02-26

申请号：US14457308

申请日：2014-08-12

Applicant: DENSO CORPORATION

Inventor： Makoto TANIGUCHI ,  Nobuyuki KIMURA ,  Masaru WATANABE ,  Hideaki KURI

IPC: H02K3/28 ,  H02K3/12

CPC classification number: H02K3/28 ,  H02K3/12 ,  H02K3/18 ,  H02K15/085 ,  H02K2213/03

Abstract: A stator for a rotational electrical machine includes a cylindrical stator core and a stator winding. The stator core includes slots arranged at intervals in a circumferential direction. The slots pass through the stator core in an axial direction. The stator winding is obtained by joining together ends of U-shaped conductors inserted through the slots. A second insertion part is located away from a first insertion part in the circumferential direction and is inserted in its corresponding slot. A joining end part is joined to another U-shaped conductor at a joining position away from the insertion part in the circumferential direction. The joining end part includes a first bent part and at least one second bent part. The first bent part is bent near an opening of its corresponding slot. The second bent part is bent between the first bent part and the joining position.

Abstract translation: 用于旋转电机的定子包括圆柱形定子芯和定子绕组。 定子铁芯包括沿圆周方向间隔设置的槽。 槽沿轴向穿过定子芯。 通过将插入在槽中的U形导体的端部接合在一起而获得定子绕组。 第二插入部分在圆周方向上远离第一插入部分并插入其对应的狭槽中。 接合端部在与圆周方向上的插入部分接合的接合位置处接合到另一个U形导体。 接合端部包括第一弯曲部和至少一个第二弯曲部。 第一弯曲部分在相应的槽的开口附近弯曲。 第二弯曲部分在第一弯曲部分和接合位置之间弯曲。

公开(公告)号：US20140346907A1

公开(公告)日：2014-11-27

申请号：US14286540

申请日：2014-05-23

Applicant: DENSO CORPORATION

Inventor： Makoto TANIGUCHI ,  Hiroshi Imai

IPC: H02K5/22

CPC classification number: H02K5/15 ,  H02K5/04 ,  H02K5/22

Abstract: A rotating electric machine has a first frame and a second frame disposed at one axial end of a casing. The first and second frames have a first flange and a second flange, respectively, that protrude outwardly from the casing. The first and second flanges are fastened together by a through bolt. The first flange includes a recessed portion having a first curved portion, a second curved portion, and a third curved portion, A curvature radius of the third curved portion is greater than a curvature radius of the first curved portion and a curvature radius of the second curved portion such that a concentration of stress within the third curved portion that is caused by a fastening force of the through bolt may be reduced.

Abstract translation: 旋转电机具有设置在壳体的一个轴向端部的第一框架和第二框架。 第一和第二框架分别具有从壳体向外突出的第一凸缘和第二凸缘。 第一和第二凸缘通过贯穿螺栓紧固在一起。 第一凸缘包括具有第一弯曲部分，第二弯曲部分和第三弯曲部分的凹部，第三弯曲部分的曲率半径大于第一弯曲部分的曲率半径和第二弯曲部分的曲率半径 弯曲部分，使得可以减小由于贯穿螺栓的紧固力引起的第三弯曲部分内的应力集中。

公开(公告)号：US20140246958A1

公开(公告)日：2014-09-04

申请号：US14187610

申请日：2014-02-24

Applicant: DENSO CORPORATION

Inventor： Makoto TANIGUCHI

IPC: H02K11/00

CPC classification number: H02K11/215 ,  H02K1/2746 ,  H02K11/01 ,  H02K21/14 ,  H02K29/08 ,  H02K2201/03

Abstract: A rotating electric machine has a semiconductor magnetic sensor and a cylindrical housing with a cylinder part, which is made of a soft magnetic material, positioned closer to the semiconductor magnetic sensor relative to a back yoke of a stator core. The semiconductor magnetic sensor is positioned away from the cylindrical housing so that a shortest distance between a center of the semiconductor magnetic sensor and the cylindrical housing is equal to or greater than 50 times of a sum of a first space distance and a second space distance. With such an arrangement, a leak magnetic field generated by magnetic poles that leaks in an axial direction is prevented from disturbing the semiconductor magnetic sensor. Thus, a rotation position detection accuracy of the semiconductor magnetic sensor is improved.

Abstract translation: 旋转电机具有半导体磁传感器和圆柱形壳体，其具有由相对于定子芯的后轭相对于半导体磁传感器定位的软磁材料制成的圆筒部。 半导体磁传感器远离圆筒形壳体定位，使得半导体磁传感器的中心与圆柱形壳体之间的最短距离等于或大于第一空间距离和第二空间距离之和的50倍。 通过这样的布置，可以防止由沿轴向泄漏的磁极产生的泄漏磁场扰乱半导体磁传感器。 因此，提高了半导体磁传感器的旋转位置检测精度。

公开(公告)号：US20140009044A1

公开(公告)日：2014-01-09

申请号：US13935715

申请日：2013-07-05

Applicant: DENSO CORPORATION

Inventor： Makoto TANIGUCHI

IPC: H02K11/00

CPC classification number: H02K15/0435 ,  H02K1/146 ,  H02K1/2706 ,  H02K1/278 ,  H02K3/18 ,  H02K7/083 ,  H02K11/215 ,  H02K11/38 ,  H02K15/02 ,  H02K15/026 ,  H02K15/06 ,  H02K15/08 ,  H02K21/16 ,  H02K29/08 ,  H02K2213/03 ,  Y10T29/49009 ,  Y10T29/49012

Abstract: A rotating electrical machine includes a supporting member, a stator core, a winding set, a shaft, a rotor, a magnetic generator, and a magnetic detector. The stator core has a ring-shaped yoke held inside the supporting member and tooth portions projecting from the yoke in a radial inward direction of the yoke. The winding set is wound on the tooth portions. The shaft extends through the stator core and is rotatably supported by the supporting member. The rotor is located in the stator core and rotates with the shaft. The magnetic generator is located at an end of the shaft. The magnetic detector outputs a signal indicative of a change in magnetic flux density created by the magnetic generator. The number of the tooth portions for every magnetic pole pair in the rotor is even.

Abstract translation: 旋转电机包括支撑构件，定子芯，绕组，轴，转子，磁发生器和磁检测器。 定子铁芯具有保持在支撑构件内部的环形轭和从磁轭沿轭的径向向内突出的齿部。 卷绕组缠绕在齿部上。 轴延伸穿过定子铁芯并由支撑构件可旋转地支撑。 转子位于定子铁芯中并与轴一起旋转。 磁力发生器位于轴的一端。 磁检测器输出表示由磁发生器产生的磁通密度变化的信号。 转子中每个磁极对的齿部数量均匀。

公开(公告)号：US20230079383A1

公开(公告)日：2023-03-16

申请号：US17990946

申请日：2022-11-21

Applicant: DENSO CORPORATION

Inventor： Makoto TANIGUCHI ,  Yuuko OHTANI ,  Shinya URATA ,  Hideo NAKAI ,  Kenji HIRAMOTO

IPC: H02K17/12 ,  H02K1/27 ,  H02P27/06 ,  H02P25/08 ,  H02K3/04

Abstract: A motor system of the present disclosure includes a permanent magnet motor including a stator having N-phase windings and a rotor having a permanent magnet, N being a natural number greater than or equal to three, an inverter that supplies N-phase drive currents for generating a rotating magnetic field to the stator, and a zero-phase current supply unit that supplies a zero-phase current to the N-phase windings of the stator. The motor system applies the zero-phase current to the N-phase windings in response to an inter-terminal voltage of the permanent magnet motor reaching a predetermined value of the inter-terminal voltage.

公开(公告)号：US20220014074A1

公开(公告)日：2022-01-13

申请号：US17481494

申请日：2021-09-22

Applicant: DENSO CORPORATION

Inventor： Yuki TAKAHASHI ,  Makoto TANIGUCHI

IPC: H02K9/22 ,  H02K5/18 ,  H02K1/28

Abstract: A rotating electrical machine includes a rotor and a magnet unit. The rotating electrical machine also includes a cylindrical stator and a housing. The stator is equipped with a stator winding made up of a plurality of phase windings. The stator is arranged coaxially with the rotor and faces the rotor. The housing has the rotor and the stator disposed therein. The rotor includes a cylindrical magnet retainer to which the magnet unit is secured and an intermediate portion which connects between a rotating shaft of the rotor and the magnet retainer and extends in a radial direction of the rotating shaft. A first region located radially inside an inner peripheral surface of a magnetic circuit component made up of the stator and the rotor is greater in volume than a second region between the inner peripheral surface of the magnetic circuit component and the housing in the radial direction.

公开(公告)号：US20210234491A1

公开(公告)日：2021-07-29

申请号：US17232289

申请日：2021-04-16

Applicant: DENSO CORPORATION

Inventor： Yoshimitsu TAKAHASHI ,  Makoto TANIGUCHI

IPC: H02P27/06 ,  H02M7/5387 ,  H02P25/22 ,  H02P23/14

Abstract: The present disclosure provides a power conversion apparatus converting a power from a DC power source, supplying the converted power to a rotary electric machine to drive the rotary electric machine. The power conversion apparatus according to the present disclosure includes: a first inverter circuit electrically connected to a first end of each of phase winding, transmitting power between respective phase windings and the DC power source; a second inverter circuit electrically connected to a second end each of phase winding, transmitting power between respective phase windings and the DC power source; and a control unit controlling the first inverter circuit and the second inverter circuit. The control unit is configured to change a total amount of current flowing through respective phase windings depending on a rotational speed of the rotary electric machine.