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公开(公告)号：US20170133960A1
公开(公告)日：2017-05-11
申请号：US15341529
申请日：2016-11-02
Applicant: DENSO CORPORATION
Inventor： Yuki TAKAHASHI
IPC: H02P6/10
CPC classification number: H02P6/10 , H02P25/022 , H02P25/08 , H02P2209/13
Abstract: A rotating electric machine drive system includes a rotating electric machine and a drive apparatus. The rotating electric machine includes a Y-connected three-phase stator coil. The drive apparatus supplies electric current to the stator coil and thereby drives the rotating electric machine. In a predetermined high-torque region, the drive apparatus supplies the stator coil with the electric current which has a waveform obtained by superimposing a specific harmonic waveform on a first-order harmonic waveform. The specific harmonic waveform is one of third-order and (3+6n)th-order harmonic waveforms, or a harmonic waveform which is obtained by synthesizing at least two of the third-order and (3+6n)th-order harmonic waveforms, where n is a natural number not less than 1. The specific harmonic waveform takes a negative integral value for a positive half cycle of the first-order harmonic waveform and a positive integral value for a negative half cycle of the first-order harmonic waveform.
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公开(公告)号：US20160105065A1
公开(公告)日：2016-04-14
申请号：US14881659
申请日：2015-10-13
Applicant: DENSO CORPORATION
Inventor： Yuki TAKAHASHI
Abstract: A rotating electric machine including a stator including a stator core and a stator coil wound around the stator core, and a rotor including a rotor core arranged coaxially and radially in a face-to-face relationship with the stator core and a field coil wound around the rotor core. Both axial end portions of the rotor core project more axially outward than respective axial end faces of the stator core. The rotor core has a cutout surface between one of the axial end faces of the rotor core and an outer peripheral surface of the rotor core. A corner at which the cutout surface and the outer peripheral surface intersect is not more axially outward than either of the axial end faces of the stator core.
Abstract translation: 一种旋转电机，包括：定子，包括定子铁心和缠绕在定子铁芯上的定子线圈;以及转子，其包括与定子铁芯以面对面的关系同心且径向设置的转子铁芯， 转子芯。 转子芯的两个轴向端部比定子芯的相应的轴向端面更向外凸出。 转子芯在转子芯的轴向端面之一和转子芯的外周表面之间具有切口表面。 切口表面和外周表面相交的角部不比定子芯的轴向端面中的任一个更轴向外侧。
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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
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。
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公开(公告)号：US20150137650A1
公开(公告)日：2015-05-21
申请号：US14543186
申请日：2014-11-17
Applicant: DENSO CORPORATION
Inventor： Yuki TAKAHASHI
IPC: H02K1/27
CPC classification number: H02K1/2766 , H02K1/28 , H02K1/32 , H02K9/197
Abstract: A rotor includes a rotor core that has magnet-receiving holes in each of which is received a corresponding permanent magnet. The rotor core also has, for each of the magnet-receiving holes, first and second supporting portions. The first supporting portion supports a radially inner end portion of a first magnetic flux barrier-side face of the corresponding permanent magnet. The second supporting portion supports a radially outer end portion of a second magnetic flux barrier-side face of the corresponding permanent magnet. A second magnetic flux barrier-side end portion of a radially outer wall surface of the magnet-receiving hole is planar in shape and parallel to a radially outer side face of the corresponding permanent magnet. A second magnetic flux barrier-side end portion of a radially inner wall surface of the magnet-receiving hole is planar in shape and parallel to a radially inner side face of the corresponding permanent magnet.
Abstract translation: 转子包括具有磁体接收孔的转子芯，每个磁体接收相应的永磁体。 对于每个磁体接收孔，转子芯还具有第一和第二支撑部分。 第一支撑部分支撑相应永磁体的第一磁通阻挡侧面的径向内端部。 第二支撑部分支撑相应永磁体的第二磁通阻挡侧面的径向外端部分。 磁铁容纳孔的径向外壁表面的第二磁通阻挡侧端部的形状是平面的，并且平行于相应永磁体的径向外侧面。 磁铁容纳孔的径向内壁面的第二磁通阻挡侧端部的形状为平面状，平行于相应的永久磁铁的径向内侧面。
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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。
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Patent Agency Ranking
公开(公告)号：US20140125184A1
公开(公告)日：2014-05-08
申请号：US14070634
申请日：2013-11-04
Applicant: DENSO CORPORATION
Inventor： Yuki TAKAHASHI
IPC: H02K1/27
CPC classification number: H02K1/276 , H02K1/27 , H02K1/2766 , H02K2213/03
Abstract: A rotor includes a rotor core in which a plurality of magnet housing holes are arrayed in a circumferential direction and a plurality of magnets fixed and held in the magnet housing holes by a filler material. The rotor core includes: a q-axis core portion, an outer flux bather that is formed between the q-axis core portion and the magnet and is filled with the filler material; and a bridge portion formed between a stator-side core portion and the q-axis core portion. The bridge portion includes a large-width portion, a small-width portion and a medium-width portion that are sequentially disposed from the q-axis core portion side towards the stator-side core portion side in the circumferential direction. The large-width portion has the largest radial-direction width. The small-width portion has the smallest radial-direction width. The medium-width portion has a medium radial-direction width between the largest radial-direction width and the smallest radial-direction width.
Abstract translation: 转子包括：转子铁芯，其中多个磁体容纳孔沿圆周方向排列;以及多个磁体，通过填充材料固定并保持在磁体容纳孔中。 转子芯包括：q轴芯部，形成在q轴芯部和磁体之间并填充有填充材料的外部焊剂; 以及形成在定子侧芯部与q轴芯部之间的桥接部。 桥接部分包括沿圆周方向从q轴芯部分侧朝向定子侧芯部侧依次设置的大宽度部分，小宽度部分和中间宽度部分。 大宽度部分具有最大的径向宽度。 小宽度部分具有最小的径向宽度。 中宽部具有在最大径向宽度和最小径向宽度之间的中等径向宽度。
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公开(公告)号：US20140077653A1
公开(公告)日：2014-03-20
申请号：US14025979
申请日：2013-09-13
Applicant: DENSO CORPORATION
Inventor： Yuki TAKAHASHI
IPC: H02K1/27
CPC classification number: H02K1/274 , H02K1/2766 , H02K2213/03
Abstract: A rotor includes a rotor core having a plurality of pairs of magnet-receiving holes and a plurality of magnets respectively received in the magnet-receiving holes. Each pair of the magnet-receiving holes is arranged in a substantially V-shape that opens toward a stator side. The rotor core has, for each of the magnet-receiving holes, a magnetic flux barrier that is formed, at a magnetic pole centerline-side end of a stator-side wall surface of the magnet-receiving hole, so as to protrude from the stator-side wall surface toward the stator side. The protruding height H of the magnetic flux barrier from the stator-side wall surface is set to be in the following range: 0.12×R≦H 0.29×R, where R is the minimum distance from an intersection P1, which is between the magnetic pole centerline and a rotor-side circumferential surface of the stator, to the stator-side wall surface of the magnet receiving hole.
Abstract translation: 转子包括具有分别容纳在磁体容纳孔中的多对磁体容纳孔和多个磁体的转子芯。 每对磁铁接收孔被布置成朝向定子侧开口的大致V形。 对于每个磁体接收孔，转子铁心具有在磁铁容纳孔的定子侧壁面的磁极中心线侧端部形成的磁通阻挡层， 定子侧壁面向定子侧。 来自定子侧壁面的磁阻障的突出高度H设定在以下范围内：0.12×R＆lt; lE; H 0.29×R，其中，R是距磁铁的交点P1的最小距离 定子的转子侧圆周面和磁铁接收孔的定子侧壁面。
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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
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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59.发明公开公开(公告)号：US20240312668A1
公开(公告)日：2024-09-19
申请号：US18675802
申请日：2024-05-28
Inventor： Katsumi OSADA , Michiaki YAMAHATA , Hideo FUKUDA , Takefumi KAJI , Yuki TAKAHASHI , Eiji KIBA
Abstract: An insulated wire includes an assembled conductor obtained by assembling or twisting a plurality of strands; an insulating layer coating an outer periphery of the assembled conductor; and a filler region that fills a space between the strands and a space between the strands and the insulating layer and includes a thermoplastic resin.
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公开(公告)号：US20230026476A1
公开(公告)日：2023-01-26
申请号：US17783892
申请日：2020-12-11
Applicant: Yuki TAKAHASHI , Masaharu KAGAMI , Yasutaka KITAMURA , DENSO CORPORATION
Inventor： Yuki TAKAHASHI , Masaharu KAGAMI , Yasutaka KITAMURA
Abstract: This optical scanning device includes: a shaft part to which a mirror part is connected; a movable magnet; a base part; a ball bearing; a core unit that has a core body and a coil body and rotationally drives the movable magnet; and a magnet position holding member that is a magnetic body provided facing the movable magnet and magnetically attracts the movable magnet to a reference position. The core unit is disposed on the outer surface side of one wall section of a pair of wall sections of the base part. An angle sensor unit for detecting the rotation angle position of the shaft part is disposed between the core unit and the one wall section.
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