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公开(公告)号：US09197103B2
公开(公告)日：2015-11-24
申请号：US14311786
申请日：2014-06-23
Applicant: DENSO CORPORATION
Inventor： Makoto Taniguchi
Abstract: A stator core includes a yoke member and a teeth member. The yoke member is in an annular shape. The teeth member includes teeth and connecting portions. The teeth are projected from the yoke member radially inward. The teeth are formed of a steel plate stacked along a circumferential direction. At least one of the connecting portions connects a part of a tip end of one of the teeth in an axial direction with a part of a tip end of an other of the teeth in the axial direction. The one of the teeth and the other of the teeth are adjacent to each other in the circumferential direction.
Abstract translation: 定子铁芯包括轭构件和齿构件。 轭构件为环形。 齿构件包括齿和连接部分。 齿从径向向内的轭构件突出。 齿由沿圆周方向堆叠的钢板形成。 连接部中的至少一个将一个齿的前端的一部分沿轴向连接到另一个齿的前端的一部分沿轴向连接。 一个齿和另一个齿在圆周方向上彼此相邻。
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公开(公告)号：US20150061453A1
公开(公告)日：2015-03-05
申请号：US14311786
申请日：2014-06-23
Applicant: DENSO CORPORATION
Inventor： Makoto Taniguchi
IPC: H02K1/16
Abstract: A stator core includes a yoke member and a teeth member. The yoke member is in an annular shape. The teeth member includes teeth and connecting portions. The teeth are projected from the yoke member radially inward. The teeth are formed of a steel plate stacked along a circumferential direction. At least one of the connecting portions connects a part of a tip end of one of the teeth in an axial direction with a part of a tip end of an other of the teeth in the axial direction. The one of the teeth and the other of the teeth are adjacent to each other in the circumferential direction.
Abstract translation: 定子铁芯包括轭构件和齿构件。 轭构件为环形。 齿构件包括齿和连接部分。 齿从径向向内的轭构件突出。 齿由沿圆周方向堆叠的钢板形成。 连接部中的至少一个将一个齿的前端的一部分沿轴向连接到另一个齿的前端的一部分沿轴向连接。 一个齿和另一个齿在圆周方向上彼此相邻。
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公开(公告)号：US20130099493A1
公开(公告)日：2013-04-25
申请号：US13644739
申请日：2012-10-04
Applicant: DENSO CORPORATION
Inventor： Makoto Taniguchi , Kouichi Nagata , Masahiko Osada
CPC classification number: H02P6/085 , H02P9/302 , H02P27/08 , H02P2207/05 , H02P2209/01
Abstract: A control apparatus for a motor-generator includes a stator including multi-phase coils, a rotor, a multi-phase inverter one arm of which includes a switch element and a free-wheeling element, and a power supply connected between a neutral point of the coils and a negative electrode of the inverter. When the switch elements are driven by rectangular wave, the low-side switch element connected to the high-side switch element is subject to PWM switching control while the high-side switch element is off. When a time point, at which the high-side switch element is turned off, is defined as a base point, if α is defined as a time when switching of the low-side switch element starts, and β is defined as a time when the switching ends, β-α is 120 degrees in electrical degree or more, α is more than 0 degrees, and β is less than 180 degrees.
Abstract translation: 一种电动发电机的控制装置，包括具有多相线圈的定子，转子，具有开关元件和续流元件的多相逆变器单臂，以及连接在 线圈和逆变器的负极。 当开关元件由矩形波驱动时，连接到高侧开关元件的低侧开关元件在高侧开关元件断开时进行PWM开关控制。 当将高侧开关元件关闭的时间点定义为基点时，如果将α定义为低侧开关元件的开关启动的时间，并且将β定义为 开关结束时，beta-alpha电程为120度以上，alpha大于0度，β小于180度。
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公开(公告)号：US11670989B2
公开(公告)日：2023-06-06
申请号：US17481650
申请日：2021-09-22
Applicant: DENSO CORPORATION
Inventor： Yuki Takahashi , Makoto Taniguchi
CPC classification number: H02K9/22 , H02K1/2786 , H02K1/28 , H02K3/47 , H02K5/18
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.
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公开(公告)号：US11641173B2
公开(公告)日：2023-05-02
申请号：US17233739
申请日：2021-04-19
Applicant: DENSO CORPORATION
Inventor： Makoto Taniguchi , Yuki Takahashi
Abstract: A control apparatus of a rotary electric machine includes a rotor; a stator including a multiphase stator winding provided with conductor portions arranged in a circumferential direction thereof. The rotary electric machine is configured of any one of a first configuration having a first inter-conductor member using a magnetic material; a second configuration having a second inter-conductor member using a non-magnetic material; and a third configuration having no inter-conductor member. The control apparatus includes: a drive circuit with switching elements provided for each phase, supplying power to the multiphase stator winding; and a control unit controlling the drive circuit such that a period where a conduction ratio of the switching elements for one phase in the drive circuit is maintained at a constant value is more than or equal to 120 degrees and less than 180 degrees in electrical angle.
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Patent Agency Ranking
公开(公告)号：US11223311B2
公开(公告)日：2022-01-11
申请号：US16598753
申请日：2019-10-10
Applicant: DENSO CORPORATION
Inventor： Hirofumi Kinjo , Toru Wakimoto , Makoto Taniguchi , Keiji Kondo , Jun Ishida , Tomoya Takahashi
Abstract: In a rotary electric machine, a rotor, and a stator. The stator includes slots provided in a circumferential direction thereof, and stator windings wound in the slots. The stator windings include n groups of three-phase windings, where n is a power of 2. The slots include first slots each accommodating portions of same-group and same-phase windings in the n groups of three-phase windings. The energizing directions of the same-group and same-phase windings are identical to each other. The second slots each accommodate different-group and same-phase windings in the n groups of three-phase windings. The first slots and the second slots are arranged in the stator at predetermined intervals in a circumferential direction of the stator, and the three-phase windings of each group are wound around the stator with regular intervals therebetween.
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公开(公告)号：US10960769B2
公开(公告)日：2021-03-30
申请号：US15657871
申请日：2017-07-24
Applicant: DENSO CORPORATION
Inventor： Keiji Kondo , Makoto Taniguchi , Asaka Kimura
IPC: B60W20/13 , B60L53/00 , B60L11/18 , H02J7/14 , B60L53/24 , B60L50/10 , H02J7/00 , B60W30/18 , H02P101/45 , H02P9/00
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.
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公开(公告)号：US10734853B2
公开(公告)日：2020-08-04
申请号：US14101391
申请日：2013-12-10
Applicant: DENSO CORPORATION
Inventor： Makoto Taniguchi , Hiroki Tomizawa
Abstract: A rotating electric machine is equipped with a consequent-pole type rotor that includes a magnetic pole having a permanent magnet buried therein and a soft magnetic material pole that interposes two magnetic poles. The thickness of the permanent magnet and a circumferential width of the soft magnetic material pole have a relationship that prevents a spread of magnetic flux distribution in the circumferential direction within a gap between the soft magnetic material pole and a stator. As a result, a magnetic flux density difference in the circumferential direction is prevented, which enables a reduction of cogging torque based on an effective reduction of low-frequency space order components that originate from components other than a main component.
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公开(公告)号：US09735636B2
公开(公告)日：2017-08-15
申请号：US14560871
申请日：2014-12-04
Applicant: DENSO CORPORATION
Inventor： Asuka Tanaka , Akihiro Kimura , Jirou Hayashi , Makoto Taniguchi
IPC: H02K1/27
CPC classification number: H02K1/278 , H02K1/276 , H02K2213/03
Abstract: Each permanent magnet provided in a rotor includes a projection that projects toward a corresponding predetermined portion of the rotor core. An inner peripheral surface of each permanent magnet, which is radially opposed to the corresponding predetermined portion of the rotor core, includes a primary contacting portion and two primary non-contacting portions. The primary contacting portion contacts the corresponding predetermined portion of the rotor core at a circumferential location, which corresponds to the projection. The primary non-contacting portions do not contact the rotor core and are located on two circumferentially opposite sides, respectively, of the primary contacting portion.
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20.发明申请ROTOR, DYNAMO-ELECTRIC MACHINE HAVING THE ROTOR AND ROTOR MANUFACTURING METHOD 有权具有转子和转子制造方法的转子，动力电机公开(公告)号：US20130342066A1
公开(公告)日：2013-12-26
申请号：US13913812
申请日：2013-06-10
Applicant: ASMO CO., LTD. , DENSO CORPORATION
Inventor： Makoto Taniguchi , Jirou Hayashi , Masahiro Goto
CPC classification number: H02K1/28 , H02K1/278 , H02K15/03 , H02K2213/03 , Y10T29/49012
Abstract: A cover is configured into a tubular form and is fitted to a radially outer surface of each of projections of a rotor core and a radially outer surface of each of permanent magnets. A circumferential center portion of the radially outer surface of each projection contacts a radially inner surface of the cover. Circumferential end portions of the radially outer surface of each projection are radially inwardly spaced from the radially inner surface of the cover.
Abstract translation: 盖被构造成管状并且装配到转子芯的每个突起的径向外表面和每个永磁体的径向外表面。 每个突起的径向外表面的圆周中心部分接触盖的径向内表面。 每个突起的径向外表面的周向端部与盖的径向内表面径向向内间隔开。
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