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公开(公告)号：US20240170942A1
公开(公告)日：2024-05-23
申请号：US18424152
申请日：2024-01-26
Inventor： Hideki Iwaki , Hideki Watanabe
CPC classification number: H02H3/033 , H02H1/0007 , H02H3/08
Abstract: A protection system includes: a first positive terminal; a second positive terminal; a first relay configured to be opened and closed by contact and separation of a first contact portion and a second contact portion; and a fuse. The first relay and the fuse are connected in series between the first positive terminal and the second positive terminal, and when an electric current exceeding a threshold current flows to the first relay, the first contact portion and the second contact portion are separated in the first relay at a first time, and when the first contact portion and the second contact portion are separated, an arc discharge occurs between the first contact portion and the second contact portion, an arc discharge occurs between the first electrode and the second electrode of the fuse at a second time, the arc discharge occurs at both of the first relay and the fuse and a difference in potential between the first electrode and the second electrode of the fuse increases during a period between the second time and a third time, and the first positive terminal and the second positive terminal are disconnected at a fourth time.
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Patent Agency Ranking
公开(公告)号：US11923672B2
公开(公告)日：2024-03-05
申请号：US17437831
申请日：2020-03-24
Inventor： Hideki Iwaki , Hideki Watanabe
CPC classification number: H02H3/033 , H02H1/0007 , H02H3/08
Abstract: A protection system includes: a first positive terminal; a second positive terminal; a first relay configured to be opened and closed by contact and separation of a first contact portion and a second contact portion; and a fuse. The first relay and the fuse are connected in series between the first positive terminal and the second positive terminal, and when an electric current exceeding a threshold current flows to the first relay, the first contact portion and the second contact portion are separated in the first relay at a first time, and when the first contact portion and the second contact portion are separated, an arc discharge occurs between the first contact portion and the second contact portion, an arc discharge occurs between the first electrode and the second electrode of the fuse at a second time, the arc discharge occurs at both of the first relay and the fuse and a difference in potential between the first electrode and the second electrode of the fuse increases during a period between the second time and a third time, and the first positive terminal and the second positive terminal are disconnected at a fourth time.
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公开(公告)号：US11139133B2
公开(公告)日：2021-10-05
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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公开(公告)号：US09613772B2
公开(公告)日：2017-04-04
申请号：US14710234
申请日：2015-05-12
Inventor： Kazuhisa Kinoshita , Hideki Watanabe
CPC classification number: H01H50/648 , H01H50/02 , H01H50/026 , H01H50/04 , H01H50/042 , H01H50/58 , H01H50/641 , H01H50/642
Abstract: The contact device includes an armature, a driver, a fixed contact, a movable contact, a contact spring, a card, a case, and a positioning member. The driver is for driving the armature. The movable contact is to be in contact with and separate from the fixed contact. The contact spring is for holding the movable contact so as to allow movement of the movable contact. The card interconnects the armature and the contact spring. The case is a synthetic resin molded product. The positioning member is provided as a separate part from the case. The positioning member is for determining a positional relationship between the armature, the driver, the fixed contact, the movable contact, the contact spring, and the card, and is accommodated in the case.
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公开(公告)号：US12230954B2
公开(公告)日：2025-02-18
申请号：US18424152
申请日：2024-01-26
Inventor： Hideki Iwaki , Hideki Watanabe
Abstract: A protection system includes: a first positive terminal; a second positive terminal; a first relay configured to be opened and closed by contact and separation of a first contact portion and a second contact portion; and a fuse. The first relay and the fuse are connected in series between the first positive terminal and the second positive terminal, and when an electric current exceeding a threshold current flows to the first relay, the first contact portion and the second contact portion are separated in the first relay at a first time, and when the first contact portion and the second contact portion are separated, an arc discharge occurs between the first contact portion and the second contact portion, an arc discharge occurs between the first electrode and the second electrode of the fuse at a second time, the arc discharge occurs at both of the first relay and the fuse and a difference in potential between the first electrode and the second electrode of the fuse increases during a period between the second time and a third time, and the first positive terminal and the second positive terminal are disconnected at a fourth time.
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公开(公告)号：US09748054B2
公开(公告)日：2017-08-29
申请号：US14710516
申请日：2015-05-12
Inventor： Kazuhisa Kinoshita , Hideki Watanabe
CPC classification number: H01H9/443 , H01H9/446 , H01H50/041 , H01H50/58 , H01H50/642 , H01H50/645
Abstract: The fixed contact member includes a fixed contact. The movable contact member includes a movable contact and is movable between a position where the movable contact is in contact with the fixed contact and a position where the movable contact is away from the fixed contact. The permanent magnet forms a magnetic field around the fixed contact. The case is for accommodating at least the fixed contact member and the movable contact member. Further, the case includes an accommodation part which is partitioned from an internal space of the case and is for accommodating the permanent magnet through an opening thereof directed to an outside of the case.
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