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公开(公告)号：US20170307663A1
公开(公告)日：2017-10-26
申请号：US15517614
申请日：2014-10-10
申请人： Hitachi Metals, Ltd.
CPC分类号： G01R15/20 , G01R33/09 , G01R33/093
摘要： A current detection method for a current detection device including magnetism detection elements that detect magnetic flux density and output a voltage signal corresponding to the magnetic flux density is provided. The method includes acquiring measured value data that is obtained as a result of providing magnetic flux density in a detectable range of the magnetism detection elements that indicates the relationship between the magnetic flux density and an output voltage signal from the current detection device. Next, computational processing is performed so as to fit the acquired measured value data to a formula that includes plural factors and indicates the output voltage of the magnetism detection elements, thereby calculating the plural factors, and correcting the output voltage signal from the magnetism detection elements in accordance with the calculated factors so as to be approximately linear with respect to the magnetic flux density. Finally, a corrected voltage signal obtained by the correction is outputted.
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公开(公告)号：US20160211060A1
公开(公告)日：2016-07-21
申请号：US14915157
申请日：2014-02-27
申请人： Hitachi Metals, Ltd.
发明人： Katsuya AKIMOTO , Naofumi CHIWATA , Yosuke SUMI , Katsutoshi NAKATANI , Kenji AJIMA , Hiroshi OKIKAWA , Yasuharu MUTO
CPC分类号： H01F1/14775 , H01B11/1008 , H05K9/0098
摘要： A shield cable includes an insulated electrical cable of a conductor wire sheathed about the circumference by an insulator, and a magnetic tape layer formed by wrapping magnetic tape about the circumference of the insulated electrical cable. The magnetic tape is a magnetic tape shaped by continuously cutting to constant width an elongated sheet comprising a magnetic material. The magnetic tape, on at least the insulated electrical cable-facing surface thereof, has grooves extending in the lengthwise direction, for accommodating at least one of pairs of burrs that are formed at both widthwise edge surfaces during cutting of the elongated sheet.
摘要翻译： 屏蔽电缆包括通过绝缘体围绕圆周包覆的导体线的绝缘电缆，以及通过围绕绝缘电缆的周围缠绕磁带而形成的磁带层。 磁带是通过连续地切割成恒定宽度的带有磁性材料的细长片形成的磁带。 磁带至少在其绝缘的电缆表面上具有沿长度方向延伸的槽，用于容纳在细长片材的切割期间形成在两个宽度方向的边缘表面上的至少一对毛刺。
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公开(公告)号：US20150204919A1
公开(公告)日：2015-07-23
申请号：US14600814
申请日：2015-01-20
申请人： Hitachi Metals, Ltd.
发明人： Katsuya AKIMOTO , Hisashi TATE , Naofumi CHIWATA , Ken OKUYAMA , Naoki FUTAKUCHI , Yukio IKEDA , Kazuhisa TAKAHASHI , Shinya HAYASHI , Takahiro FUTATSUMORI
CPC分类号： G01R19/15 , G01R15/207 , G01R33/0094 , G01R33/02
摘要： A current detection structure includes a plurality of busbars arranged in parallel, and a plurality of magnetic detection elements each provided for corresponding one of the plurality of busbars so as to measure a strength of a magnetic field generated by a current flowing through the corresponding busbar. The plurality of magnetic detection elements are mounted on a single circuit board.
摘要翻译： 电流检测结构包括平行布置的多个母线，以及多个磁检测元件，每个磁检测元件分别设置用于多个母线中的相应一个母线，以便测量由流经相应母线的电流产生的磁场的强度。 多个磁检测元件安装在单个电路板上。
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公开(公告)号：US20150204915A1
公开(公告)日：2015-07-23
申请号：US14600716
申请日：2015-01-20
申请人： Hitachi Metals, Ltd.
发明人： Ken OKUYAMA , Naofumi CHIWATA , Katsuya AKIMOTO , Naoki FUTAKUCHI , Yukio IKEDA , Kazuhisa TAKAHASHI
CPC分类号： G01R19/0092 , G01R15/205 , G01R15/207 , G01R33/093
摘要： A current detection structure includes a busbar to flow a current therethrough, a magnetic detection element to detect a strength of a magnetic field generated by the current flowing through the busbar, and a current detecting portion to determine the current flowing through the busbar based on the magnetic field detected by the magnetic detection element. A through-hole is formed penetrating the busbar such that a current path is formed on both sides of the through-hole. The magnetic detection element is disposed in the through-hole. The current detecting portion determines the current flowing through the busbar based on a strength of a synthetic magnetic field detected by the magnetic detection element. The synthetic magnetic field is produced by combining a magnetic field that is generated by a current flowing through the current path on the both sides of the through-hole.
摘要翻译： 电流检测结构包括用于流过电流的母线，用于检测由流过母线的电流产生的磁场的强度的磁检测元件，以及电流检测部分，用于基于电流检测部分确定流过母线的电流 由磁检测元件检测的磁场。 穿过母线的通孔形成在通孔的两侧形成电流通路。 磁检测元件设置在通孔中。 电流检测部基于由磁检测元件检测出的合成磁场的强度来确定流经母线的电流。 合成磁场通过将通过流过通孔的电流的电流产生的磁场组合在通孔的两侧而产生。
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公开(公告)号：US20150235738A1
公开(公告)日：2015-08-20
申请号：US14622574
申请日：2015-02-13
申请人： Hitachi Metals, Ltd.
发明人： Katsutoshi NAKATANI , Yosuke SUMI , Kenji AJIMA , Katsuya AKIMOTO , Naofumi CHIWATA , Hiroshi OKIKAWA , Yasuharu MUTO
IPC分类号： H01B9/00
CPC分类号： H01B9/006 , H01F2017/065 , H05K9/0098
摘要： A noise suppression cable includes an electrical wire, a first magnetic material including a pair of first surfaces formed along an axis direction of the electrical wire and a convex portion projecting from the first surfaces, and a second magnetic material including a pair of second surfaces disposed on a periphery of the electrical wire, the pair of the second surfaces contacting the pair of the first surfaces such that a tubular shape is formed by the first and second magnetic materials. The first magnetic material and the second magnetic material are configured to generate a compression stress in the convex portion of the first magnetic material by receiving an external force so as to reduce a relative permeability of the convex portion.
摘要翻译： 噪声抑制电缆包括电线，包括沿着电线的轴线方向形成的一对第一表面的第一磁性材料和从第一表面突出的凸出部分，以及包括一对第二表面的第二磁性材料 在电线的周边上，一对第二表面与一对第一表面接触，使得由第一和第二磁性材料形成管状。 第一磁性材料和第二磁性材料被配置为通过接收外力而在第一磁性材料的凸部中产生压缩应力，以减小凸部的相对磁导率。
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公开(公告)号：US20150204916A1
公开(公告)日：2015-07-23
申请号：US14600784
申请日：2015-01-20
申请人： Hitachi Metals, Ltd.
发明人： Katsuya AKIMOTO , Hisashi TATE , Naoki FUTAKUCHI , Naofumi CHIWATA , Ken OKUYAMA , Yukio IKEDA , Kazuhisa TAKAHASHI
CPC分类号： G01R19/0092 , G01R15/205 , G01R15/207 , G01R19/25 , G01R33/093
摘要： An electric current sensor includes a plurality of bus bars arranged in parallel, a plurality of magnetic detection elements that are adapted to detect a strength of a magnetic field generated by an electric current flowing through the bus bars and to output a voltage according to the strength of the magnetic field detected, and an arithmetic operation part to arithmetically operate an electric current flowing through the bus bars based on the voltage output from the plurality of magnetic detection elements. The arithmetic operation part includes a magnetic flux density arithmetic operation part to arithmetically operate a magnetic flux density based on the voltage, and an electric current arithmetic operation part to arithmetically operate an electric current I1 to Im flowing through each of the bus bars based on formula (1) below, ( B 1 = a 11 · I 1 + a 12 · I 2 + … + a 1 n · I n B 2 = a 21 · I 1 + a 22 · I 2 + … + a 2 n · I n B 3 = a 31 · I 1 + a 32 · I 2 + … + a 3 n · I n ⋮ ⋮ B m = a m 1 · I 1 + a m 2 · I 2 + … + a mn · I n where a 11 to a mn are coefficients , ( 1 ) B1 to Bm are a magnetic flux density and I1 to Im are an electric current.
摘要翻译： 电流传感器包括并排布置的多个母线，多个磁检测元件，其适于检测由流过母线的电流产生的磁场的强度，并根据强度输出电压 以及算术运算部件，其基于从多个磁检测元件输出的电压算术运算流经母线的电流。 算术运算部包括基于电压算术运算磁通密度的磁通密度算术运算部，以及电流运算部，根据公式计算流过各母线的电流I1〜Im （1）（B 1 = a 11·I 1 + a 12·I 2 + ... + a 1）n·I n B 2 = a 21·I 1 + a 22·I 2 + ... + a 2 n n I n B 3 = a 31·I 1 + a 32·I 2 + ... + a 3 n n I n⋮⋮⋮⋮⋮⋮⋮⋮⋮⋮⋮1 1 1 1 1 1 1 1 I I I I I I （1）B1到Bm是磁通密度，I1到Im是电流。
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7.发明申请公开(公告)号：US20150083489A1
公开(公告)日：2015-03-26
申请号：US14462982
申请日：2014-08-19
申请人： HITACHI METALS, LTD.
CPC分类号： H01B3/30 , B60R16/02 , H01B13/008 , H01B13/345 , Y10T29/5187
摘要： It is an objective of the invention to provide a high-power supply cable characterized in that even when mounted in a narrow space where the cable undergoes a repetitive bending motion, any undesirable deformation out of the bending plane is small. There is provided a power-supply cable including: an electric wire including an electrical conductor and a resin sheath covering the electrical conductor, the electric wire having a tendency to generate a curl under a no-load condition, the curl having a curling direction, the curling direction being a normal to the curl, the electric wire having one or more longitudinal ends; a connecting terminal disposed at one of the longitudinal ends of the electric wire; and a curling tendency direction indicator showing the curling direction, the indicator being disposed along a normal line to the curl of the electric wire.
摘要翻译： 本发明的目的是提供一种高功率电源电缆，其特征在于，即使当安装在电缆经历重复弯曲运动的狭窄空间中时，弯曲平面外的任何不期望的变形也很小。 提供了一种电源电缆，包括：电线，其包括电导体和覆盖所述电导体的树脂护套，所述电线具有在空载条件下产生卷曲的倾向，所述卷曲具有卷曲方向， 卷曲方向与卷曲正交，电线具有一个或多个纵向端; 连接端子，设置在所述电线的纵向端部之一处; 卷曲方向指示器表示卷曲方向，该指示器沿着与电线的卷曲的法线配置。
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公开(公告)号：US20170020037A1
公开(公告)日：2017-01-19
申请号：US15301114
申请日：2015-03-25
申请人： HITACHI METALS, LTD.
发明人： Katsutoshi NAKATANI , Kenji AJIMA , Yosuke SUMI , Katsuya AKIMOTO , Naofumi CHIWATA , Hiroshi OKIKAWA , Yasuharu MUTO
CPC分类号： H05K9/0098 , H01B9/021 , H01B9/022 , H01B11/1895 , H05K9/0075
摘要： A noise suppression cable includes an insulated electric wire including an insulator that covers an outer periphery of a conductor wire, and a magnetic tape layer formed by transversely winding a magnetic tape on an outer periphery of the insulated electric wire. A magnetic body constituting the magnetic tape is cut out from a rolled material in such a manner that a width direction of the magnetic tape corresponds to a rolled direction, and the magnetic body has a magnetic property that is different between the width direction and an orthogonal direction to the width direction.
摘要翻译： 噪声抑制电缆包括绝缘电线，其包括覆盖导线外周的绝缘体，以及通过在绝缘电线的外周上横向卷绕磁带形成的磁带层。 构成磁带的磁性体以卷绕方向的宽度方向与轧制材料切断，磁性体的宽度方向与正交的磁性不同， 方向到宽度方向。
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公开(公告)号：US20160146860A1
公开(公告)日：2016-05-26
申请号：US14944602
申请日：2015-11-18
申请人： Hitachi Metals, Ltd.
CPC分类号： G01R15/207 , G01R15/205
摘要： A current detector includes a plurality of current paths arranged in parallel, magnetic detection portions that are provided corresponding to the plurality of current paths and have magnetic detection elements for detecting strength of a magnetic field generated by an electric current flowing through each of the current paths, a temperature sensor for detecting a temperature of the magnetic detection portions, correction circuits for correcting an output of the magnetic detection elements based on a result of detection by the temperature sensor, and detection circuits for detecting a magnitude of the electric current flowing through each of the current paths based on the output corrected by the correction circuits. The magnetic detection portions and the temperature sensor are housed, together with a portion of the plurality of current paths, in a molded package. A number of the temperature sensor is less than that of the magnetic detection portions.
摘要翻译： 电流检测器包括并联布置的多个电流通路，对应于多个电流路径设置的磁检测部分，并且具有用于检测由流过每个电流路径的电流产生的磁场强度的磁检测元件 ，用于检测磁检测部分的温度的温度传感器，用于基于温度传感器的检测结果校正磁检测元件的输出的校正电路，以及用于检测流过每个的检测电流的大小的检测电路 基于由校正电路校正的输出的电流路径。 磁检测部分和温度传感器与多个电流路径的一部分一起被容纳在模制封装中。 多个温度传感器小于磁检测部分。
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公开(公告)号：US20160146859A1
公开(公告)日：2016-05-26
申请号：US14943569
申请日：2015-11-17
申请人： Hitachi Metals, Ltd.
IPC分类号： G01R15/20
CPC分类号： G01R15/205
摘要： A current detector includes a half-bridge configuration including first and second magnetic detection elements that are connected in series and disposed such that a magnetization direction of a magnetic pinned layer thereof is opposite to each other, and a bias magnetic field generating means for applying a bias magnetic field to the first and second magnetic detection elements. The bias magnetic field has a substantially same intensity and is formed in a direction substantially orthogonal to the magnetization direction and opposite to each other.
摘要翻译： 电流检测器包括半桥配置，其包括串联连接的第一和第二磁检测元件，并且被布置成使得其磁性钉扎层的磁化方向彼此相反;偏置磁场产生装置， 偏置磁场到第一和第二磁性检测元件。 偏置磁场具有大致相同的强度，并且形成在与磁化方向基本正交的方向上并且彼此相反。
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