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公开(公告)号：US20210151271A1
公开(公告)日：2021-05-20
申请号：US16766451
申请日：2018-11-21
Inventor： Kazuhiro KODAMA , Shinya KIMOTO , Ryosuke OZAKI
Abstract: A contact device includes a fixed terminal, a moving contactor, a moving yoke, and a bus bar. The moving contactor moves from a closed position where a moving contact is in contact with a fixed contact to an open position where the moving contact is out of contact with the fixed contact, and vice versa. The moving yoke moves, as the moving contactor moves, in a direction of movement of the moving contactor. The bus bar generates, when energized, a magnetic field having a direction aligned with the direction of movement of the moving contactor. The bus bar is arranged, with respect to the moving yoke when the moving contactor is currently located at the closed position, in a direction in which the moving contactor moves from the open position toward the closed position.
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公开(公告)号：US20210304974A1
公开(公告)日：2021-09-30
申请号：US17260507
申请日：2019-07-19
Inventor： Kenji KANEMATSU , Shinya KIMOTO , Yoshihisa FUKUDA , Kazuhisa KINOSHITA , Shun ITO , Kazuhiro KODAMA
IPC: H01H3/28 , H01H3/32 , H01H37/52 , H01H71/16 , H01H71/24 , H01H71/28 , H01H73/04 , H01H83/22 , H01H9/54 , G01R19/165 , H01H1/22 , H01H1/54
Abstract: A control system is designed to control an interrupter. The interrupter is started by a startup current to interrupt a main electric circuit. The startup current flows through an auxiliary electric circuit and has a current valve equal to or greater than a predetermined value. The control system includes a driving unit and a driven unit. The driving unit includes an intermediate electrical path to be connected to the main electric circuit. The driven unit is to be connected to the auxiliary electric circuit. When an abnormal current having a current value equal to or greater than a prescribed value flows through the intermediate electrical path, the driving unit uses, as a drive source for driving the driven unit, the abnormal current flowing through the intermediate electrical path. The driven unit supplies the auxiliary electric circuit with the startup current by being driven by the driving unit.
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公开(公告)号：US20240177946A1
公开(公告)日：2024-05-30
申请号：US18434433
申请日：2024-02-06
Inventor： Kenji KANEMATSU , Shinya KIMOTO , Yoshihisa FUKUDA , Kazuhisa KINOSHITA , Shun ITO , Kazuhiro KODAMA
IPC: H01H3/28 , G01R19/165 , H01H1/22 , H01H1/54 , H01H3/32 , H01H9/54 , H01H37/52 , H01H71/16 , H01H71/24 , H01H71/28 , H01H73/04 , H01H83/22
CPC classification number: H01H3/28 , G01R19/16538 , H01H1/221 , H01H1/54 , H01H3/32 , H01H9/54 , H01H37/52 , H01H71/16 , H01H71/2409 , H01H71/28 , H01H73/04 , H01H83/223 , H01H2071/249 , H01H2221/022
Abstract: An interrupter system includes a first coil and an interrupter electrically connected to the first coil. The interrupter includes: a first terminal; a second terminal electrically connected to the first terminal; a third terminal electrically separated from the first terminal and the second terminal; a heat generating element electrically connected to the third terminal; and an explosive configured to be ignited by the heat generating element to produce a gas for interrupting an electrical connection between the first terminal and the second terminal. The first coil is electrically connected to the heat generating element via the third terminal. Moreover, the first coil is configured to, when an abnormal current flows between the first terminal and the second terminal, generate an electric power for igniting the explosive from the abnormal current.
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Patent Agency Ranking
公开(公告)号：US20210375569A1
公开(公告)日：2021-12-02
申请号：US16766548
申请日：2018-11-21
Inventor： Ryosuke OZAKI , Shinya KIMOTO , Kazuhiro KODAMA , Yasutaka HIEDA , Seiya SAKAGUCHI
Abstract: A bus bar of a contact device includes at least one electric path piece selected from a reverse and a forward electric path piece extending along a direction of current flowing through a moving contactor. The moving contactor is positioned between the reverse electric path piece and a fixed contact in moving directions of the moving contactor with the moving contactor positioned in the closed position. The reverse electric path piece allows current to flow therethrough in an opposite direction from current flowing through the moving contactor. The forward electric path piece is positioned on a same side as the fixed contact relative to the moving contactor in the moving directions of the moving contactor with the moving contactor positioned in the closed position. The forward electric path piece allows current to flow therethrough in a same direction as current flowing through the moving contactor.
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公开(公告)号：US20200381203A1
公开(公告)日：2020-12-03
申请号：US16766481
申请日：2018-11-21
Inventor： Seiya SAKAGUCHI , Shinya KIMOTO , Ryosuke OZAKI , Kazuhiro KODAMA
Abstract: The contact device switches between a closed state where a movable contact is in contact with the fixed contact and an open state where the movable contact is apart from the fixed contact as the movable element moves. The bus bar is electrically connected to the fixed contact. A magnetic field generated by a current flowing through the bus bar when the contact device is in the closed state applies, to the movable element, force oriented such that the movable element is maintained at a location where the contact device is in the closed state. In such a positional relationship, the bus bar and the electromagnetic device are disposed.
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公开(公告)号：US20160336133A1
公开(公告)日：2016-11-17
申请号：US15111176
申请日：2015-02-04
Inventor： Yoshihisa FUKUDA , Kazuhiro KODAMA , Junji TAKAHASHI , Hisashi HIRAKI , Shuichi KATAYAMA , Tomohiro OTA
CPC classification number: H01H50/20 , H01H50/36 , H01H50/42 , H01H51/01 , H01H51/2209 , H01H51/2227 , H01H2051/2218
Abstract: An electromagnetic relay includes a contactor including a fixed contact and a movable contact, and an electromagnet device for moving the movable contact. The electromagnet device includes a coil generating a first magnetic flux by energization, a tubular body including a permanent magnet generating a second magnetic flux in a direction identical to a direction of the first magnetic flux and having a hollow extending in a center axis direction, a movable element disposed in the hollow of the tubular body and reciprocating in the center axis direction, and a yoke forming a magnetic circuit passing together with the movable element and the tubular body. The magnetic circuit allows at least one of the first and second magnetic fluxes to pass through the magnetic circuit. The electromagnet device is configured to, when the coil is energized, move the movable contact to a first position by attracting the movable element with the first magnetic flux and the second magnetic flux. The electromagnet device is configured to, when energization of the coil is suspended, move the movable contact to a second position different from the first position. This electromagnetic relay is easily designed and reduces power consumption at a low cost.
Abstract translation: 电磁继电器包括具有固定触点和可动触头的接触器，以及用于移动可动触头的电磁装置。 电磁体装置包括通过通电而产生第一磁通的线圈，包括永磁体的管状体，该永磁体在与第一磁通的方向相同的方向上产生第二磁通并具有沿中心轴方向延伸的中空， 设置在管状体的中空部并沿中心轴方向往复运动的可动元件，以及形成与可动元件和管状体一起通过的磁路的磁轭。 磁路允许第一和第二磁通中的至少一个通过磁路。 电磁体装置被构造成当线圈被通电时，通过用第一磁通和第二磁通量吸引可移动元件将可动触头移动到第一位置。 电磁体装置被构造成当线圈的通电被暂停时，将可动触头移动到与第一位置不同的第二位置。 该电磁继电器易于设计，并以低成本降低功耗。
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公开(公告)号：US20200286702A1
公开(公告)日：2020-09-10
申请号：US16765792
申请日：2018-11-21
Inventor： Kazuhiro KODAMA , Ryosuke OZAKI , Shinya KIMOTO , Seiya SAKAGUCHI , Yasutaka HIEDA
Abstract: A contact module includes a pair of contact devices, each of which includes a fixed terminal and a moving contactor. The moving contactor moves from a closed position where the moving contact is in contact with the fixed contact to an open position where the moving contact is out of contact with the fixed contact, and vice versa. One moving contactor generates, when energized, a magnetic field that applies force to the other moving contactor in a direction from the open position of the other moving contactor toward the closed position of the other moving contactor. The other moving contactor generates, when energized, a magnetic field that applies force to the one moving contactor in a direction from the open position of the one moving contactor toward the closed position of the one moving contactor.
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公开(公告)号：US20190355536A1
公开(公告)日：2019-11-21
申请号：US16477136
申请日：2018-01-11
Inventor： Ryosuke OZAKI , Shinya KIMOTO , Kazuhiro KODAMA , Seiya SAKAGUCHI , Yasutaka HIEDA , Masahiro ITO , Hideki WATANABE
Abstract: A first conductive member is fixed to a first fixed terminal having a longitudinal direction, and a second conductive member is fixed to a second fixed terminal having a longitudinal direction. The first fixed terminal and the second fixed terminal are fixed to a partition member. A first extension portion of the first conductive member includes a first opposed portion opposed to at least one of the first fixed terminal at a first fixed contact side of the partition member. The first opposed portion extends in the longitudinal direction of the first fixed terminal.
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