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公开(公告)号：US11955919B2
公开(公告)日：2024-04-09
申请号：US17352630
申请日：2021-06-21
申请人： DENSO CORPORATION
发明人： Makoto Taniguchi , Kazunari Moriya , Kenji Hiramoto , Hideo Nakai , Yuuko Ohtani , Shinya Urata , Masafumi Namba
IPC分类号： H02P6/30
CPC分类号： H02P6/30 , H02P2207/05
摘要： An electric motor system includes a battery, an inverter, an electric motor, a zero-phase switching arm and a control unit. The inverter converts DC power output from the battery into three-phase AC power and outputs the three-phase AC power to the electric motor. A rotor of the electric motor rotates by the three-phase AC power output from the inverter. A neural point of the electric motor is connected to the zero-phase switching arm. A zero-phase current flowing through respective windings of the electric motor is adjusted by switching of the zero-phase switching arm. By this means, in the electric motor system, torque is generated at the rotor also using the zero-phase current as well as a three-phase AC current flowing through the respective windings.
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公开(公告)号：US11831228B2
公开(公告)日：2023-11-28
申请号：US17481486
申请日：2021-09-22
申请人： DENSO CORPORATION
发明人： Yuki Takahashi , Makoto Taniguchi
IPC分类号： H02K3/47 , H02K1/28 , H02K9/22 , H02K5/18 , H02K1/2786
CPC分类号： H02K9/22 , H02K1/2786 , H02K1/28 , H02K3/47 , H02K5/18
摘要： 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：US11196372B2
公开(公告)日：2021-12-07
申请号：US15931919
申请日：2020-05-14
申请人： DENSO CORPORATION
发明人： Hirofumi Kinjo , Makoto Taniguchi
摘要： A control apparatus for a rotating electric machine is applied to a rotating electric machine system. The rotating electric machine system includes a rotating electric machine having a multiple-phase winding, a first inverter connected to a first end of the winding for each phase, a second inverter connected to a second end of the winding for each phase, a high-potential-side connection line, and a low-potential-side connection line. The control apparatus acquires a parameter that has a correlation with a fundamental current that flows to the winding of each phase. The control apparatus stores, in a storage unit, correspondence information in which the parameter is associated with an amplitude and a phase of a harmonic voltage that is generated in the rotating electric machine. The control apparatus controls each of the first inverter and the second inverter to suppress the harmonic voltage based on the correspondence information and the acquired parameter.
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公开(公告)号：US10523070B2
公开(公告)日：2019-12-31
申请号：US15612344
申请日：2017-06-02
申请人： DENSO CORPORATION
摘要： 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.
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公开(公告)号：US10027252B2
公开(公告)日：2018-07-17
申请号：US15651047
申请日：2017-07-17
申请人： DENSO CORPORATION
发明人： Makoto Taniguchi , Asaka Kimura , Keiji Kondo
IPC分类号： H02P27/06 , H02M7/5387
摘要： A rotating electric machine system includes a rotating electric machine and an electric power conversion circuit. The rotating electric machine includes N coils connected with each other to define a neutral point therebetween. The electric power conversion circuit includes N high-side switches, N low-side switches, a selector switch, a full-wave driver, a half-wave driver and a drive controller. The full-wave driver performs a full-wave drive process with high potential-side terminals of the low-side switches respectively connected with low potential-side terminals of the high-side switches by the selector switch. The half-wave driver performs a half-wave drive process with the high potential-side terminals of the low-side switches connected with the neutral point by the selector switch. The drive controller controls both the full-wave driver and the half-wave driver to selectively cause either the full-wave driver to perform the full-wave drive process or the half-wave driver to perform the half-wave drive process.
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公开(公告)号：US09893586B2
公开(公告)日：2018-02-13
申请号：US14609517
申请日：2015-01-30
申请人： DENSO CORPORATION
发明人： HIroki Tomizawa , Makoto Taniguchi , Hiroshi Imai
摘要： A seal member of a driver apparatus contacts a case and a first frame end. The seal member has an opening in which a lead wire is inserted and an inside wall surface of the opening contacts the lead wire. Further, the seal member is made of a stretchable material, and is held in position only by a binding force between the case and the first frame end. The seal member is fixedly held by the first frame end and the case after an insertion of the lead wire in the opening and disposition on the fixing member opposing face. Therefore, an installation of the seal member is performed by an inserting the lead wire into the opening and a positioning the seal member on the case.
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公开(公告)号：US09653956B2
公开(公告)日：2017-05-16
申请号：US14457308
申请日：2014-08-12
申请人： DENSO CORPORATION
IPC分类号： H02K3/12 , H02K3/28 , H02K15/085 , H02K3/18
CPC分类号： H02K3/28 , H02K3/12 , H02K3/18 , H02K15/085 , H02K2213/03
摘要： 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.
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公开(公告)号：US09472984B2
公开(公告)日：2016-10-18
申请号：US13962223
申请日：2013-08-08
申请人： DENSO CORPORATION
发明人： Makoto Taniguchi
IPC分类号： H02K1/27
CPC分类号： H02K1/27 , H02K1/2746 , H02K1/278
摘要： A rotor includes a rotation shaft having a rotation axis; a rotator core fixed to the rotation shaft and having an axial end face and an outer circumference face; an end plate covering the axial end face of the rotator core; and a magnet cover covering the outer circumference face of the rotator core. The magnet cover has a first end portion adjacent to the end plate and a second end portion which is opposite to the first end portion in an axial direction. The first end portion of the magnet cover covers entire outer periphery edge of the end plate. The first end portion of the magnet cover is bent toward the rotation axis in entire outer periphery edge of the magnet cover.
摘要翻译： 转子包括具有旋转轴的旋转轴; 固定在所述旋转轴上并具有轴向端面和外周面的旋转体芯; 覆盖所述旋转体芯的轴向端面的端板; 以及覆盖旋转体芯的外周面的磁体盖。 磁体盖具有与端板相邻的第一端部和与轴向方向上的第一端部相对的第二端部。 磁体盖的第一端部覆盖端板的整个外周边缘。 磁体盖的第一端部在磁体盖的整个外周边缘处朝向旋转轴线弯曲。
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公开(公告)号：US09360295B2
公开(公告)日：2016-06-07
申请号：US13919316
申请日：2013-06-17
申请人： DENSO CORPORATION , ASMO CO., LTD.
发明人： Makoto Taniguchi , Takeshi Wakana , Hiroshi Imai , Masahiro Goto
摘要： A rotational position sensing apparatus includes a rotational position sensing magnet and a fixing member. The fixing member is made of a non-magnetic material and is fixed to a rotatable shaft of a rotor. The fixing member includes a plurality of projections, which radially inwardly project and are arranged one after another in a circumferential direction at an inner peripheral surface of a first peripheral wall portion within a space, which is defined by the first peripheral wall portion and a bottom wall portion and holds the rotational position sensing magnet.
摘要翻译： 旋转位置检测装置包括旋转位置感测磁体和固定构件。 固定构件由非磁性材料制成并且固定到转子的可旋转轴上。 固定构件包括多个突起，其在由第一周壁部和下底部限定的空间内的第一周壁部的内周面沿径向向内突出并依次配置的突起 并保持旋转位置感测磁铁。
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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
申请人： DENSO CORPORATION
发明人： Makoto Taniguchi
摘要： 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.
摘要翻译： 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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