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    ELECTRIC CURRENT SENSOR
    1.
    发明申请
    ELECTRIC CURRENT SENSOR 有权
    电流传感器

    公开(公告)号：US20150204916A1

    公开(公告)日：2015-07-23

    申请号：US14600784

    申请日：2015-01-20

    Applicant: Hitachi Metals, Ltd.

    Inventor： Katsuya AKIMOTO ,  Hisashi TATE ,  Naoki FUTAKUCHI ,  Naofumi CHIWATA ,  Ken OKUYAMA ,  Yukio IKEDA ,  Kazuhisa TAKAHASHI

    IPC: G01R19/00 ,  G01R33/09 ,  G01R19/25

    CPC classification number: G01R19/0092 ,  G01R15/205 ,  G01R15/207 ,  G01R19/25 ,  G01R33/093

    Abstract: 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.

    Abstract translation: 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。

    MAGNETIC SENSOR
    3.
    发明申请
    MAGNETIC SENSOR 有权
    磁传感器

    公开(公告)号：US20150316637A1

    公开(公告)日：2015-11-05

    申请号：US14682635

    申请日：2015-04-09

    Applicant: Hitachi Metals, Ltd.

    Inventor： Naoki FUTAKUCHI ,  Yukio IKEDA ,  Kazuhisa TAKAHASHI

    IPC: G01R35/00 ,  G01R33/09

    CPC classification number: G01R15/205 ,  G01R33/0029 ,  G01R33/093 ,  G01R33/096 ,  G01R35/00

    Abstract: A magnetic sensor includes a magnetic detection element, and a correcting section to correct an output voltage of the magnetic detection element and output the corrected output voltage. The correcting section is configured to compute a magnetic flux density from the output voltage of the magnetic detection element, compute and output the corrected output voltage having a linear relationship to the computed magnetic flux density.

    Abstract translation: 磁传感器包括磁检测元件和用于校正磁检测元件的输出电压并输出校正输出电压的校正部。 校正部被配置为从磁检测元件的输出电压计算磁通密度，计算并输出与计算出的磁通密度成线性关系的校正输出电压。

    CABLE WITH MOLDED RESIN
    4.
    发明申请
    CABLE WITH MOLDED RESIN 有权
    带模制树脂的电缆

    公开(公告)号：US20150364231A1

    公开(公告)日：2015-12-17

    申请号：US14732532

    申请日：2015-06-05

    Applicant: Hitachi Metals, Ltd.

    Inventor： Kazuhisa TAKAHASHI ,  Masanori SAGAWA ,  Yukio IKEDA ,  Takahiro FUTATSUMORI

    IPC: H01B7/24 ,  H01B3/42 ,  H01B3/47 ,  H01B3/30

    CPC classification number: H01B7/24 ,  G01D11/245 ,  H01B3/305 ,  H01B3/422 ,  H01B3/47 ,  H01R13/5833 ,  H01R13/5845

    Abstract: A cable with a molded resin includes a cable including an electric wire and a sheath covering the electric wire, the electric wire including a central conductor and an insulation covering the central conductor, and a molded resin covering a part of the electric wire protruding from the sheath in a longitudinal direction thereof, the molded resin being apart from the sheath. The electric wire is bent at not less than one bent part in the molded resin.

    Abstract translation: 具有模制树脂的电缆包括电缆和覆盖电线的护套，电线包括中心导体和覆盖中心导体的绝缘体，以及覆盖电线的一部分的模制树脂， 护套在其纵向方向上，模制树脂与护套分开。 电线在模制树脂中不小于一个弯曲部分弯曲。

    CURRENT DETECTION STRUCTURE
    6.
    发明申请
    CURRENT DETECTION STRUCTURE 有权
    电流检测结构

    公开(公告)号：US20150204915A1

    公开(公告)日：2015-07-23

    申请号：US14600716

    申请日：2015-01-20

    Applicant: Hitachi Metals, Ltd.

    Inventor： Ken OKUYAMA ,  Naofumi CHIWATA ,  Katsuya AKIMOTO ,  Naoki FUTAKUCHI ,  Yukio IKEDA ,  Kazuhisa TAKAHASHI

    IPC: G01R19/00 ,  G01R33/09

    CPC classification number: G01R19/0092 ,  G01R15/205 ,  G01R15/207 ,  G01R33/093

    Abstract: 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.

    Abstract translation: 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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