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1. 发明授权

US11545277B2 Copper alloy wire, cable, and method of manufacturing copper alloy wire 有权
公开(公告)号：US11545277B2
公开(公告)日：2023-01-03
申请号：US16538106
申请日：2019-08-12
申请人： Hitachi Metals, Ltd.
发明人： Kazuhisa Takahashi , Shohei Hata , Hiromitsu Kuroda , Toru Sumi , Kazuya Nishi , Keisuke Fujito , Takayuki Tuji
IPC分类号： H01B1/02 , C22C9/00 , C22F1/08 , H01B13/00
摘要： Bendability of a copper alloy wire is improved without decrease in an electrical conductivity of the copper alloy wire made of copper alloy containing zirconium. A cable includes: a two-core stranded wire formed by intertwining two electrical wires made of a conductor and an insulating layer covering the conductor; a filler formed around the two-core stranded wire; and a sheath formed around the filler and the electrical wire. The conductor is a copper alloy wire in which a precipitate containing the zirconium disperses, and has a crystal gain diameter that is equal to or smaller than 1 μm, an electrical conductivity that is equal to or higher than 87% IACS, and a tensile stress that is equal to or larger than 545 MPa.

2. 发明授权

US09880206B2 Electric current sensor 有权
公开(公告)号：US09880206B2
公开(公告)日：2018-01-30
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
IPC分类号： G01R19/00 , G01R33/09 , G01R19/25 , G01R15/20
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.

3. 发明授权

US09625496B2 Magnetic sensor 有权
公开(公告)号：US09625496B2
公开(公告)日：2017-04-18
申请号：US14682635
申请日：2015-04-09
申请人： Hitachi Metals, Ltd.
发明人： Naoki Futakuchi , Yukio Ikeda , Kazuhisa Takahashi
IPC分类号： G01R15/20 , G01R35/00 , G01R33/00 , G01R33/09
CPC分类号： G01R15/205 , G01R33/0029 , G01R33/093 , G01R33/096 , G01R35/00
摘要： 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.

4. 发明授权

US09513317B2 Current detection structure 有权
标题翻译：电流检测结构
公开(公告)号：US09513317B2
公开(公告)日：2016-12-06
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
IPC分类号： G01R15/00 , G01R19/00 , G01R33/09 , G01R15/20
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。

5. 发明授权

US09640302B2 Cable with molded resin 有权
公开(公告)号：US09640302B2
公开(公告)日：2017-05-02
申请号：US14732532
申请日：2015-06-05
申请人： Hitachi Metals, Ltd.
发明人： Kazuhisa Takahashi , Masanori Sagawa , Yukio Ikeda , Takahiro Futatsumori
IPC分类号： H01B7/24 , G01D11/24 , H01R13/58 , H01B3/30 , H01B3/42 , H01B3/47
CPC分类号： H01B7/24 , G01D11/245 , H01B3/305 , H01B3/422 , H01B3/47 , H01R13/5833 , H01R13/5845
摘要： 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.

6. 发明授权

US09557352B2 Current detection structure 有权
标题翻译：电流检测结构
公开(公告)号：US09557352B2
公开(公告)日：2017-01-31
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
IPC分类号： G01R15/20 , G01R19/15 , G01R33/00 , G01R33/02
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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