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11. 发明授权

US09335380B2 Device for detecting insulation degradation 有权
标题翻译：绝缘降解检测装置
公开(公告)号：US09335380B2
公开(公告)日：2016-05-10
申请号：US13254696
申请日：2010-02-08
申请人： Yoshimasa Watanabe , Ryuichi Nishiura , Yoshiharu Kaneda , Hiroshi Nishizawa , Toru Oka , Hirotaka Muto , Toshiki Tanaka , Yoji Tsutsumishita
发明人： Yoshimasa Watanabe , Ryuichi Nishiura , Yoshiharu Kaneda , Hiroshi Nishizawa , Toru Oka , Hirotaka Muto , Toshiki Tanaka , Yoji Tsutsumishita
IPC分类号： G01R31/34 , G01R31/12
CPC分类号： G01R31/343 , G01R31/1227
摘要： The invention is related to a device for detecting insulation degradation in an inverter-driven load device, in particular a motor, the device including: zero-phase current measuring means for measuring a zero-phase current in power-feed lines, provided in the power-feed lines between an inverter device and the motor; and command control means for putting rotation of the motor on standby; wherein the zero-phase current measuring means measures the total of phase currents fed into respective phases so as not to rotate a shaft even when an external force is applied to the shaft during the rotation being on standby, whereby allowing regular detection of insulation degradation without switching over the power-feed lines connected with the load device.
摘要翻译：本发明涉及一种用于检测逆变器驱动的负载装置，特别是电动机中的绝缘劣化的装置，该装置包括：零相电流测量装置，用于测量供电线路中的零相电流，逆变器装置与电动机之间的供电线; 以及指令控制装置，用于使马达的转动置于待机状态; 其中零相电流测量装置测量馈送到各相中的相电流的总和，以便即使当旋转期间外部力施加到轴时也不转动轴，从而允许定期检测绝缘降级而不会切换与负载设备连接的供电线路。

12. 发明申请

US20140363893A1 DIAGNOSING METHOD FOR OIL-FILLED ELECTRICAL EQUIPMENT 审中-公开
标题翻译：油封电气设备的诊断方法
公开(公告)号：US20140363893A1
公开(公告)日：2014-12-11
申请号：US14241336
申请日：2011-11-28
申请人： Ryuichi Nishiura , Fukutaro Kato , Eiichi Nagao
发明人： Ryuichi Nishiura , Fukutaro Kato , Eiichi Nagao
IPC分类号： G01N33/28
CPC分类号： G01N33/2835 , G01N33/287 , H01F27/402 , H01F2027/404
摘要： The present invention is a diagnosing method for oil-filled electrical equipment for diagnosing a degree of risk with regard to occurrence of abnormality due to copper sulfide generation in oil-filled electrical equipment, and the method includes a first step of detecting specific compounds contained in insulating oil in said oil-filled electrical equipment, a second step of evaluating a possibility of copper sulfide generation at a dangerous part leading to dielectric breakdown in said oil-filled electrical equipment in accordance with a detection result obtained in said first step, and a third step of diagnosing a degree of risk with regard to occurrence of abnormality in said oil-filled electrical equipment in accordance with an evaluation result obtained in said second step. Said specific compounds include dibenzyldisulfide and 2,6-di-t-butyl-p-cresol.
摘要翻译：本发明是一种充油电气设备的诊断方法，用于诊断由充油电气设备中的硫化铜产生引起的异常发生的风险程度，该方法包括：检测包含在所述充油电气设备中的绝缘油，第二步，根据所述第一步骤中获得的检测结果，评估在所述充油电气设备中导致介电击穿的危险部分产生硫化铜的可能性，以及根据在所述第二步骤中获得的评估结果，诊断所述充满油的电气设备中发生异常的风险程度的第三步骤。所述具体化合物包括二苄基二硫化物和2,6-二叔丁基对甲酚。

13. 发明申请

US20100219814A1 MAGNETIC POSITION SENSOR 审中-公开
标题翻译：磁性位置传感器
公开(公告)号：US20100219814A1
公开(公告)日：2010-09-02
申请号：US12092973
申请日：2006-12-28
申请人： Ryuichi Nishiura , Hiroshi Nishizawa , Takaharu Ueda
发明人： Ryuichi Nishiura , Hiroshi Nishizawa , Takaharu Ueda
IPC分类号： G01D5/14
CPC分类号： G01B7/003 , B66B1/3492 , F01N3/00 , G01D5/145
摘要： In a magnetic position sensor, first and second detecting cores are disposed so as to line up with each other on opposite sides of a detecting gap. A magnet unit is displaced relative to the first and second detecting cores together with displacement of a measured object. The magnet unit has: first and second magnet cores that are disposed so as to line up with each other on opposite sides of an origin gap; and a magnet that generates two magnetic flux loops between the first and second detecting cores and the first and second magnet cores, the magnetic flux loops having a boundary at the origin gap.
摘要翻译：在磁性位置传感器中，第一和第二检测芯设置成在检测间隙的相对侧彼此对齐。磁体单元相对于第一和第二检测芯与被测量物体的位移一起移位。磁体单元具有：第一和第二磁芯，其被设置为在原点间隙的相对侧彼此对齐; 以及磁体，其在第一和第二检测铁芯与第一和第二磁铁芯之间产生两个磁通量环，磁通回路在原点间隙具有边界。

14. 发明授权

US07633287B2 Current sensor 有权
标题翻译：电流传感器
公开(公告)号：US07633287B2
公开(公告)日：2009-12-15
申请号：US12255783
申请日：2008-10-22
申请人： Ryuichi Nishiura , Yo Makita , Hiroshi Nishizawa , Tadahiro Yoshida , Tae Hyun Kim
发明人： Ryuichi Nishiura , Yo Makita , Hiroshi Nishizawa , Tadahiro Yoshida , Tae Hyun Kim
IPC分类号： G01R15/18 , G01R1/20 , G01R15/20 , G01R19/20
CPC分类号： H01F3/10 , H01F3/14 , H01F17/0033 , H01F27/346 , H01F30/16 , H01F38/30 , H01F2027/2814
摘要： A core is divided by alternately arranging plural magnetic material portions and plural non-magnetic material portions in a circumferential direction of the core through which a primary conductor penetrates. A conductor is wound around the core under conditions in which each core cross section of the core intersects the magnetic material portion and the non-magnetic material portion, each core cross section including a cut end surface of each conductor of a secondary winding wound around the core, and a ratio of a magnetic material portion cross-sectional area of the magnetic material portion to a non-magnetic material portion cross-sectional area of the non-magnetic material portion at the core cross section is kept constant at each core cross section.
摘要翻译：通过在芯的圆周方向上交替布置多个磁性材料部分和多个非磁性材料部分来分割芯体，初级导体穿过芯部。在核心的每个芯横截面与磁性材料部分和非磁性材料部分相交的条件下，导体缠绕在芯体周围，每个芯部横截面包括缠绕在第二绕组上的次级绕组的每个导体的切割端面磁芯部分的磁性材料部分横截面积与芯部横截面处的非磁性材料部分的非磁性材料部分横截面积的比率在每个芯部横截面保持恒定。

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