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公开(公告)号:US09645189B2
公开(公告)日:2017-05-09
申请号:US14088209
申请日:2013-11-22
申请人: Hitachi Metals, Ltd.
发明人: Yosuke Sumi , Naofumi Chiwata , Hideyuki Kikuchi
CPC分类号: G01R31/14 , G01R31/12 , G01R31/1227 , G01R31/1263 , G01R31/1272
摘要: A partial discharge charge amount measuring method includes generating a partial discharge in a sample by applying a voltage from a voltage impressing device connected to the sample, the voltage being higher than a partial discharge inception voltage, continuously measuring and recording terminal voltages of a capacitor connected in series between the sample and a ground at least until a breakdown of the sample occurs by alternately operating at least two data loggers connected to the capacitor at intervals of a predetermined time, calculating an amount of electric charge discharged from the sample and remaining in the capacitor by multiplying a difference in the recorded terminal voltages of the capacitor by a capacitance of the capacitor, and calculating an accumulated discharge amount by accumulating the discharged amount of electric charge at earliest until the breakdown of the sample occurs.
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公开(公告)号:US09824793B2
公开(公告)日:2017-11-21
申请号:US15170714
申请日:2016-06-01
申请人: Hitachi Metals, Ltd.
发明人: Katsutoshi Nakatani , Yosuke Sumi , Kenji Ajima , Katsuya Akimoto , Hiroshi Okikawa , Mamoru Ohashi , Yasunori Suzuki
摘要: A noise reduction cable includes a plurality of insulated wires, each including a conductor and an insulator that covers a periphery of the conductor; and one or more drain wires, each including a conductor, an insulator that covers a periphery of the conductor, and a magnetic-material layer provided on a periphery of the insulator.
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公开(公告)号:US09659687B2
公开(公告)日:2017-05-23
申请号:US15094839
申请日:2016-04-08
申请人: Hitachi Metals, Ltd.
IPC分类号: H01B11/10
CPC分类号: H01B11/1091 , H01B11/10 , H01B11/1041 , H01B11/1083
摘要: A noise reduction cable includes an insulated wire including an insulator and a wire conductor, an outer circumference of which is coated with the insulator, a magnetic-material layer including a magnetic-material-containing member wound around an outer circumference of the insulated wire, a shield layer with which an outer circumference of the magnetic-material layer is coated, a magnetic-material-fixing-and-insulating tape layer that is disposed between the magnetic-material layer and the shield layer. The magnetic-material-fixing-and-insulating tape layer fixes the magnetic-material layer and insulates the magnetic-material layer and the shield layer from each other.
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公开(公告)号:US09706692B2
公开(公告)日:2017-07-11
申请号:US15207699
申请日:2016-07-12
申请人: Hitachi Metals, Ltd.
CPC分类号: H05K9/0098 , H01B7/0216 , H01B7/0241 , H01B7/18 , H01B11/00 , H01B13/08 , H01B13/26 , H05K9/0075
摘要: A method of manufacturing a noise shield cable, wherein the noise shield cable includes a conductor, an insulation provided around the conductor, a noise shielding layer provided around the insulation and a sheath provided around the noise shielding layer, includes providing an insulating material including a magnetic powder, pressing and then rolling the insulating material to form a sheet, and winding the sheet around the insulation to form the noise shielding layer. An aspect ratio of the magnetic powder represented by a maximum length/a maximum thickness is more than 10.
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公开(公告)号:US20150235741A1
公开(公告)日:2015-08-20
申请号:US14606826
申请日:2015-01-27
申请人: Hitachi Metals, Ltd.
发明人: Yosuke Sumi , Naofumi Chiwata , Katsuya Akimoto , Katsutoshi Nakatani , Kenji Ajima , Hiroshi Okikawa , Yasuharu Muto
CPC分类号: H01B11/1083 , H01B3/30 , H01B3/44 , H05K9/0083 , H05K9/0098
摘要: A noise suppression cable includes a conductor wire, and a magnetic insulation layer that is formed around the conductor wire and includes an insulating material and a flat-shaped magnetic powder. A flatness direction of the magnetic powder is oriented in a circumferential direction of the magnetic insulation layer.
摘要翻译: 噪声抑制电缆包括导体线和形成在导体线周围并包括绝缘材料和扁平磁性粉末的磁性绝缘层。 磁性粉末的平坦度方向在磁性绝缘层的圆周方向上取向。
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公开(公告)号:US20150228377A1
公开(公告)日:2015-08-13
申请号:US14618793
申请日:2015-02-10
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: H01B11/1083 , H01B3/30 , H01B11/1008
摘要: A shielded cable includes an insulated wire including a conductor wire and an insulation formed around the conductor wire, and a shield layer formed around the insulated wire and including a shield wire. The shield wire includes a tubular member including a conductive material and defining a gap therein, and a magnetic powder is filled in the gap.
摘要翻译: 屏蔽电缆包括绝缘线,其包括导线和围绕导线形成的绝缘体,以及围绕绝缘电线形成并包括屏蔽线的屏蔽层。 屏蔽线包括包括导电材料并在其中限定间隙的管状构件,并且磁性粉末填充在间隙中。
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公开(公告)号:US09530542B2
公开(公告)日:2016-12-27
申请号:US14618793
申请日:2015-02-10
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: H01B11/1083 , H01B3/30 , H01B11/1008
摘要: A shielded cable includes an insulated wire including a conductor wire and an insulation formed around the conductor wire, and a shield layer formed around the insulated wire and including a shield wire. The shield wire includes a tubular member including a conductive material and defining a gap therein, and a magnetic powder is filled in the gap.
摘要翻译: 屏蔽电缆包括绝缘线,其包括导线和围绕导线形成的绝缘体,以及围绕绝缘电线形成并包括屏蔽线的屏蔽层。 屏蔽线包括包括导电材料并在其中限定间隙的管状构件,并且磁性粉末填充在间隙中。
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公开(公告)号:US09455071B2
公开(公告)日:2016-09-27
申请号:US14732514
申请日:2015-06-05
申请人: Hitachi Metals, Ltd.
发明人: Yosuke Sumi , Naofumi Chiwata , Katsuya Akimoto , Katsutoshi Nakatani , Hiroshi Komuro , Kenji Ajima , Hiroshi Okikawa , Yasuharu Muto
CPC分类号: H01B11/1083
摘要: A noise suppression cable includes a conductor wire, and a magnetic insulation layer on a periphery of the conductor wire. The magnetic insulation layer includes an insulating material and two or more types of magnetic powders that have different frequency characteristics from each other.
摘要翻译: 噪声抑制电缆包括导体线,以及在导线的周围的磁性绝缘层。 磁绝缘层包括彼此具有不同频率特性的绝缘材料和两种或更多种类型的磁粉。
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公开(公告)号:US09396841B2
公开(公告)日:2016-07-19
申请号:US14606716
申请日:2015-01-27
申请人: Hitachi Metals, Ltd.
发明人: Yosuke Sumi , Naofumi Chiwata , Katsuya Akimoto , Katsutoshi Nakatani , Kenji Ajima , Hiroshi Okikawa , Yasuharu Muto
CPC分类号: H01B11/08 , H01B11/04 , H05K9/0098
摘要: A noise suppression cable includes a plurality of twisted pair wires, an inclusion that includes an insulating material and a magnetic powder and separates the plurality of twisted pair wires, and a sheath that includes an insulating material and covers a periphery of the plurality of twisted pair wires and the inclusion.
摘要翻译: 噪声抑制电缆包括多个双绞线,包含绝缘材料和磁粉并将多个双绞线分离的夹杂物和包括绝缘材料并覆盖多个双绞线的外围的护套 电线和包含。
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公开(公告)号:US20150260776A1
公开(公告)日:2015-09-17
申请号:US14638976
申请日:2015-03-04
申请人: Hitachi Metals, Ltd.
发明人: Peng Xie , Hideyuki Kikuchi , Yosuke Sumi
CPC分类号: G01R31/1272
摘要: A method for evaluating an electrical wire having a conductor and an insulating layer includes: a partial-discharge amount-of-charge determining step of applying, by a voltage application unit, a voltage to the electrical wire to cause partial discharge in the electrical wire and determining an amount of charge owing to the partial discharge; and an evaluation step of evaluating the insulating layer by using a change over time in the amount of charge owing to the partial discharge.
摘要翻译: 一种用于评估具有导体和绝缘层的电线的方法包括:部分放电量的确定步骤,通过电压施加单元向电线施加电压以在电线中引起局部放电 并确定由于局部放电引起的电荷量; 以及通过使用由于局部放电而导致的电荷量随时间的变化来评估绝缘层的评估步骤。
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