公开(公告)号：US20060017343A1

公开(公告)日：2006-01-26

申请号：US10997876

申请日：2004-11-29

申请人： Katsumi Ohata ,  Masatsugu Nakano ,  Tetsunao Takaki

发明人： Katsumi Ohata ,  Masatsugu Nakano ,  Tetsunao Takaki

IPC分类号： H02K1/27

CPC分类号： H02K1/278

摘要： A brushless motor is capable of increasing output torque while suppressing an increase in iron loss. A plurality of magnets are magnetized in reverse radial orientation in such a manner that magnetic fields directed toward a stator converge toward the stator, and each of the magnets is provided at opposite ends of its outer peripheral surface with a pair of notched portions that are cut away to gradually approach in an axial direction as they proceed from an intermediate portion to the opposite ends.

摘要翻译： 无刷电动机能够在抑制铁损的增加的同时增加输出转矩。 多个磁体以反向径向定向磁化，使得朝向定子的磁场朝向定子会聚，并且每个磁体设置在其外周面的相对端部，其中一对切口部分被切割 在从中间部分到相对端进行时沿轴向逐渐接近。

公开(公告)号：US07202585B2

公开(公告)日：2007-04-10

申请号：US10997876

申请日：2004-11-29

申请人： Katsumi Ohata ,  Masatsugu Nakano ,  Tetsunao Takaki

发明人： Katsumi Ohata ,  Masatsugu Nakano ,  Tetsunao Takaki

IPC分类号： H02K21/12

CPC分类号： H02K1/278

摘要： A brushless motor is capable of increasing output torque while suppressing an increase in iron loss. A plurality of magnets are magnetized in reverse radial orientation in such a manner that magnetic fields directed toward a stator converge toward the stator, and each of the magnets is provided at opposite ends of its outer peripheral surface with a pair of notched portions that are cut away to gradually approach in an axial direction as they proceed from an intermediate portion to the opposite ends.

摘要翻译： 无刷电动机能够在抑制铁损的增加的同时增加输出转矩。 多个磁体以反向径向定向磁化，使得朝向定子的磁场朝向定子会聚，并且每个磁体设置在其外周面的相对端部，其中一对切口部分被切割 在从中间部分到相对端进行时沿轴向逐渐接近。

公开(公告)号：US08778841B2

公开(公告)日：2014-07-15

申请号：US13137998

申请日：2011-09-23

申请人： Yoshihide Wadayama ,  Katsumi Ohata ,  Kazuhiko Nakagawa ,  Morio Kimura

发明人： Yoshihide Wadayama ,  Katsumi Ohata ,  Kazuhiko Nakagawa ,  Morio Kimura

IPC分类号： H01L39/24

CPC分类号： H01B12/10 ,  H01F6/06 ,  H01L39/2409 ,  Y10T29/49014 ,  Y10T428/12646 ,  Y10T428/12903

摘要： A precursor for a Nb3Sn superconductor wire to be manufactured by the internal diffusion method. The precursor includes Nb-based single core wires, Sn-based single core wires, and a cylindrical diffusion barrier made of Ta or Nb. Each Nb-based single core wire includes a Nb-based core coated with a Cu-based coating made of a Cu-based matrix. Each Sn-based single core wire includes a Sn-based core coated with a Cu-based coating made of a Cu-based matrix. The Nb-based single core wires and the Sn-based single core wires are regularly disposed in the diffusion barrier. The Nb-based single core wires includes at least two kinds of Nb-based single core wires having different Cu/Nb ratios and the Cu/Nb ratio is a cross sectional area ratio of the Cu-based coating to the Nb-based core.

摘要翻译： 通过内部扩散法制造的Nb3Sn超导体线的前体。 前体包括Nb基单芯线，Sn基单芯线和由Ta或Nb制成的圆柱形扩散阻挡层。 每个Nb基单芯线包括涂覆有由Cu基基体制成的Cu基涂层的Nb基核。 每个Sn基单芯线包括涂覆有由Cu基基体制成的Cu基涂层的Sn基芯。 Nb基单芯线和Sn基单芯线规则地设置在扩散阻挡层中。 Nb系的单芯线包含Cu / Nb比不同的Nb系单相芯线中的至少两种，Cu / Nb比是Cu系涂层与Nb系磁芯的截面积比。

公开(公告)号：US07764030B2

公开(公告)日：2010-07-27

申请号：US11959213

申请日：2007-12-18

申请人： Masayasu Miyajima ,  Jun Suzumura ,  Toshiyuki Oonishi ,  Katsumi Ohata

发明人： Masayasu Miyajima ,  Jun Suzumura ,  Toshiyuki Oonishi ,  Katsumi Ohata

IPC分类号： H02P6/16

CPC分类号： H02P6/15 ,  Y10S388/928

摘要： A control apparatus for a three-phase brushless motor, in which a control circuit includes time interval calculation means (133 in FIG. 4). The time interval calculation means (133) is endowed with at least one time interval calculation mode. In the time interval calculation mode, pluralities of time intervals which correspond to an addition section obtained by adding up two or more Q continuous sections are calculated on the basis of two position detection signals which lie at both the ends of the addition section, among position detection signals successively generated. The control circuit determines pluralities of energization switching timings on the basis of the pluralities of time intervals. The control apparatus for the three-phase brushless motor can decrease the deviations of the energization switching timings attributed to the errors of the mounting positions of position sensors or to the errors of the magnetized positions of a rotor, without requiring any complicated adjustment.

摘要翻译： 一种用于三相无刷电动机的控制装置，其中控制电路包括时间间隔计算装置（图4中的133）。 时间间隔计算装置（133）具有至少一个时间间隔计算模式。 在时间间隔计算模式中，基于位于加法部的两端的两个位置检测信号来计算与通过相加两个以上的Q连续部分而获得的相加部分相对应的多个时间间隔， 连续产生检测信号。 控制电路基于多个时间间隔来确定多个通电切换定时。 用于三相无刷电动机的控制装置可以减少归因于位置传感器的安装位置的误差或转子的磁化位置的误差引起的通电切换定时的偏差，而不需要任何复杂的调整。

公开(公告)号：US09000645B2

公开(公告)日：2015-04-07

申请号：US13805934

申请日：2011-05-19

申请人： Toshiyuki Onishi ,  Masafumi Okazaki ,  Katsumi Ohata ,  Akio Fujiwara ,  Wataru Hirosue

发明人： Toshiyuki Onishi ,  Masafumi Okazaki ,  Katsumi Ohata ,  Akio Fujiwara ,  Wataru Hirosue

IPC分类号： H02K21/26 ,  H02K1/18 ,  H02K1/17 ,  H02K23/04

CPC分类号： H02K1/185 ,  H02K1/17 ,  H02K23/04 ,  H02K2213/12

摘要： The rotating electrical machine of the present invention includes: a magnet holder made of a non-magnetic material, which is formed by coupling a columnar portion for retaining the permanent magnet in a circumferential direction, and an annular portion for covering each axial side surface of the permanent magnet. The magnet holder includes, on an outer diameter side of both circumferential side surfaces of the columnar portion, engaging portions which engage with respective locking portions of the magnet cover, and includes, on an inner diameter side of each of both the circumferential side surfaces of the columnar portion, an extending portion extending along an inner peripheral surface of the magnet cover with a clearance (D) with respect to the inner peripheral surface of the magnet cover.

摘要翻译： 本发明的旋转电机包括：由非磁性材料构成的磁体保持架，其通过将用于保持永久磁铁的圆周方向的圆柱状部分沿圆周方向连接而形成，以及环形部分，用于覆盖每个轴向侧表面 永久磁铁。 所述磁体保持器在所述柱状部的两个周向侧面的外径侧具有与所述磁体盖的各个卡定部卡合的卡合部，并且在所述两个所述周向侧面的每一个的内径侧 所述柱状部分是沿着所述磁体盖的内周面延伸的延伸部分，所述延伸部分相对于所述磁体盖的内周表面具有间隙（D）。

公开(公告)号：US07442013B2

公开(公告)日：2008-10-28

申请号：US10790123

申请日：2004-03-02

申请人： Toshinori Tanaka ,  Kiyohide Okamoto ,  Yuusuke Matsui ,  Kyouhei Yamamoto ,  Shuji Isono ,  Hideki Megata ,  Keiichi Fukazawa ,  Katsumi Ohata ,  Kengo Fujimoto

发明人： Toshinori Tanaka ,  Kiyohide Okamoto ,  Yuusuke Matsui ,  Kyouhei Yamamoto ,  Shuji Isono ,  Hideki Megata ,  Keiichi Fukazawa ,  Katsumi Ohata ,  Kengo Fujimoto

IPC分类号： B67D5/40

CPC分类号： B62D5/064 ,  F04C15/008 ,  F04C2230/60

摘要： An electro-hydraulic power steering apparatus in which a control device, a motor and a pump are integrated. The apparatus includes a first housing, a second housing, a control device surrounded by the first and second housings, a motor disposed on a side of the first housing and a pump disposed on a side of the second housing. The motor includes a rotor, a stator and a frame. The rotor has a first bearing supported by the first housing. The frame includes an inner circumferential face into which a stator core is press fitted and receives a second bearing of the rotor. The frame is secured to the first housing by a first clamp screw. The first housing and the second housing are secured by a second clamp screw. The first and second clamp screws are tightened from the hand of the frame.

摘要翻译： 一种其中集成了控制装置，电动机和泵的电液动力转向装置。 该装置包括第一壳体，第二壳体，由第一壳体和第二壳体围绕的控制装置，设置在第一壳体侧面的电动机和设置在第二壳体一侧的泵。 电动机包括转子，定子和框架。 转子具有由第一壳体支撑的第一轴承。 框架包括内周面，定心芯被压配入其中并接收转子的第二轴承。 框架通过第一夹紧螺钉固定到第一壳体。 第一壳体和第二壳体通过第二夹紧螺钉固定。 第一和第二夹紧螺钉从框架的手紧固。

公开(公告)号：US06882080B2

公开(公告)日：2005-04-19

申请号：US10649656

申请日：2003-08-28

申请人： Toshinori Tanaka ,  Yuusuke Matsui ,  Keiichi Fukazawa ,  Satoru Akutsu ,  Kengo Fujimoto ,  Katsumi Ohata ,  Takeshi Sugiyama

发明人： Toshinori Tanaka ,  Yuusuke Matsui ,  Keiichi Fukazawa ,  Satoru Akutsu ,  Kengo Fujimoto ,  Katsumi Ohata ,  Takeshi Sugiyama

IPC分类号： H02K1/14 ,  H02K21/14 ,  H02K21/16 ,  H02K1/00

CPC分类号： H02K1/148 ,  H02K21/16

摘要： A stator core is formed into a cylindrical shape, 3n teeth are disposed at a predetermined pitch in a circumferential direction where n is a positive integer, and slots are formed between adjacent pairs of the teeth so as to open onto an inner circumferential side. A stator coil is installed as a concentrated winding in the stator core. A rotor is rotatably disposed inside the stator and 2n permanent magnets are disposed at a predetermined pitch in a circumferential direction on an outer peripheral portion of a shaft. The stator core is constructed such that a slot opening (d) and a slot pitch (p) at an inner circumferential surface of the stator core satisfy an expression 0.1≦d/p≦0.3.

摘要翻译： 定子铁芯形成为圆筒状，在n为正整数的圆周方向以规定的间距配置3n个齿，在相邻的齿对之间形成狭缝，从而向内周侧开口。 定子线圈作为集中绕组安装在定子铁心中。 转子可旋转地设置在定子内部，并且2n个永久磁铁在轴的外周部分沿圆周方向以预定间距设置。 定子芯构造成使得在定子芯的内圆周表面处的槽开口（d）和槽间距（p）满足表达式0.1 <= d /p≤0.3。

公开(公告)号：US20140221215A1

公开(公告)日：2014-08-07

申请号：US14021960

申请日：2013-09-09

申请人： Yoshihide Wadayama ,  Katsumi Ohata ,  Kazuhiko Nakagawa ,  Morio Kimura

发明人： Yoshihide Wadayama ,  Katsumi Ohata ,  Kazuhiko Nakagawa ,  Morio Kimura

IPC分类号： H01B12/10 ,  H01F6/06

CPC分类号： H01B12/10 ,  H01F6/06 ,  H01L39/2409 ,  Y10T29/49014 ,  Y10T428/12646 ,  Y10T428/12903

摘要： A precursor for a Nb3Sn superconductor wire to be manufactured by the internal diffusion method, includes a plurality of Nb-based single core wires, each of which includes a Nb-based core coated with a Cu-based coating including a Cu-based matrix, a plurality of Sn-based single core wires, each of which includes a Sn-based core coated with a Cu-based coating including a Cu-based matrix; and a cylindrical diffusion barrier including Ta or Nb, in which the plurality of Nb-based single core wires and the plurality of Sn-based single core wires are regularly disposed, wherein the plurality of Nb-based single core wires include Nb-based single core wires having a Cu/Nb ratio of 0.4 or more, wherein the Cu/Nb ratio is a cross sectional area ratio of the Cu-based coating to the Nb-based core.

摘要翻译： 通过内部扩散法制造的Nb 3 Sn超导体线的前体包括多个Nb基单根芯线，其中每根芯线包括涂覆有包含Cu基基体的Cu基涂层的Nb基核， 多个Sn基单根芯线，其中每根芯线包括涂覆有包含Cu基基体的Cu基涂层的Sn基芯; 以及包括Ta或Nb的圆柱形扩散阻挡层，其中多个Nb基单芯线和多个Sn-基单芯线被规则地布置，其中多个Nb基单芯线包括Nb基单根芯线 Cu / Nb比为0.4以上的芯线，其中Cu / Nb比是Cu系涂层与Nb系芯的截面积比。

公开(公告)号：US20090312187A1

公开(公告)日：2009-12-17

申请号：US12453237

申请日：2009-05-04

申请人： Masahiro Seido ,  Katsumi Ohata ,  Kazuhiko Nakagawa

发明人： Masahiro Seido ,  Katsumi Ohata ,  Kazuhiko Nakagawa

IPC分类号： H01L39/24

CPC分类号： H01L39/2406 ,  H01L39/2409 ,  Y10T29/49014

摘要： A metallic thin film is wound around a core material made of a first metallic material in a predetermined number of windings to provide a first wire rod having a diameter which is applicable for roll forming in a longitudinal direction of the core material. The metallic thin film is formed by rolling a second metallic material and carrying out an annealing heat treatment on the rolled second metallic material. The first wire rod is cut to provide second wire rods, and the second wire rods are filled into a billet for multi-wires to provide a multi billet. The multi billet is extruded and drawn. Thereafter, a heat treatment is carried out on the drawn material to provide a superconducting wire.

摘要翻译： 将金属薄膜缠绕在由预定数量的绕组中的第一金属材料制成的芯材上，以提供第一线材，其具有可用于在芯材料的纵向方向上的辊轧成形的直径。 金属薄膜通过轧制第二金属材料并对轧制的第二金属材料进行退火热处理而形成。 第一线材被切割以提供第二线材，并且第二线材被填充到用于多线的坯料中以提供多坯料。 多坯料被挤压和拉伸。 此后，对拉伸材料进行热处理以提供超导线。

公开(公告)号：US07217106B2

公开(公告)日：2007-05-15

申请号：US10743726

申请日：2003-12-24

申请人： Toshinori Tanaka ,  Keiichi Fukazawa ,  Yuusuke Matsui ,  Kyouhei Yamamoto ,  Katsumi Ohata ,  Kengo Fujimoto

发明人： Toshinori Tanaka ,  Keiichi Fukazawa ,  Yuusuke Matsui ,  Kyouhei Yamamoto ,  Katsumi Ohata ,  Kengo Fujimoto

IPC分类号： F04B17/00

CPC分类号： B62D5/064 ,  F16C25/083 ,  F16C27/066 ,  F16C35/077 ,  F16C2380/26 ,  H02K5/1732

摘要： An electro-hydraulic power steering apparatus includes: a motor having a rotational shaft and provided with a bearing for rotatably bearing the rotational shaft; a hydraulic pump disposed at one end of the rotational shaft of the motor and driven by the motor; a first elastic body for supporting the bearing; and a second elastic body for pressing the bearing in an axial direction.

摘要翻译： 电动液压动力转向装置包括：电动机，其具有旋转轴并设置有用于可旋转地支承旋转轴的轴承; 液压泵，其设置在电动机的旋转轴的一端并由电动机驱动; 用于支撑轴承的第一弹性体; 以及用于沿轴向按压所述轴承的第二弹性体。