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公开(公告)号：US11784017B2
公开(公告)日：2023-10-10
申请号：US17297461
申请日：2019-10-16
申请人： OMRON Corporation
发明人： Naoki Kawaguchi , Ryota Minowa , Yasuo Hayashida , Shingo Mori , Kohei Otsuka , Hiroyuki Iwasaka
摘要： An electromagnetic relay includes a pair of fixed terminals including a fixed contact, a movable contact piece, a housing portion, and a magnet portion. The movable contact piece includes a movable contact disposed facing the fixed contact. The movable contact piece is movable in a first direction in which the movable contact contacts the fixed contact and a second direction in which the movable contact separates from the fixed contact. The housing portion includes a housing space housing the fixed contact and movable contact piece. The magnet portion includes a pair of magnets disposed around the housing portion so as to face each other in a longitudinal direction of the movable contact piece and extending in the second direction beyond the housing space. The magnet portion generates a magnetic flux flowing in a direction parallel to the longitudinal direction between the fixed contact and the movable contact.
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公开(公告)号：US11636992B2
公开(公告)日：2023-04-25
申请号：US17297459
申请日：2019-10-17
申请人： OMRON Corporation
发明人： Kohei Otsuka , Ryota Minowa , Hiroyuki Iwasaka , Yasuo Hayashida , Shingo Mori , Naoki Kawaguchi
摘要： An electromagnetic relay includes a pair of fixed terminals, a movable contact piece, and a magnet portion. The pair of fixed terminals includes fixed contact. The movable contact piece that includes a movable contact disposed facing the fixed contact and that is movable in a first direction in which the movable contact contacts the fixed contact and in a second direction in which the movable contact separates from fixed contact. The magnet portion generating a magnetic field for extending an arc generated between the fixed contact and the movable contact. At least one of a corner portion in the first direction side of the fixed terminal located in an arc extension direction in which the arc is extended or a corner portion in the second direction side of the movable contact piece located in the arc extension direction has a chamfered shape in a range where the arc passes through.
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公开(公告)号：US11942297B2
公开(公告)日：2024-03-26
申请号：US17262219
申请日：2019-02-18
申请人： OMRON Corporation
发明人： Naoki Kawaguchi , Ryota Minowa , Yasuo Hayashida , Shingo Mori , Kohei Otsuka , Hiroyuki Iwasaka
摘要： A relay includes a movable contact piece having a movable contact, a fixed contact, a drive device configured to move the movable contact piece, a magnet to apply a Lorentz force to an arc in a first extension direction, a fixed terminal having an intermediate portion to apply a Lorentz force to the arc in a second extension direction, and a wall portion. The wall portion includes first and second wall surfaces. The first wall surface is disposed to face an arc-extinguishing space, and is disposed opposite to the movable contact and the fixed contact in the first extension direction. The second wall surface is disposed to face the arc-extinguishing space and is disposed downstream in the second extension direction with respect to the first wall surface. A distance from the movable contact piece to the second wall surface differs from a distance to the first wall surface.
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公开(公告)号：US11373830B2
公开(公告)日：2022-06-28
申请号：US17012052
申请日：2020-09-04
申请人： OMRON Corporation
发明人： Naoki Kawaguchi , Ryota Minowa , Hiroyuki Harimochi , Shinichi Ogawa , Kohei Otsuka , Hiroyuki Iwasaka
摘要： A movable contact piece is movable in an open direction and a closed direction with respect to a first fixed terminal and a second fixed terminal. A first movable contact is connected to the movable contact piece. The first movable contact is disposed facing a first fixed contact. A second movable contact is connected to the movable contact piece. The second movable contact is disposed facing a second fixed contact. At least one of the first fixed contact or the first movable contact has a material property different from that of at least one of the second fixed contact or the second movable contact.
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公开(公告)号：US11955302B2
公开(公告)日：2024-04-09
申请号：US17262217
申请日：2019-02-18
申请人： OMRON CORPORATION
发明人： Kohei Otsuka , Ryota Minowa , Hiroyuki Iwasaka , Yasuo Hayashida , Shingo Mori , Naoki Kawaguchi
CPC分类号： H01H50/14 , H01H50/546 , H01H50/56 , H01H50/60
摘要： An electromagnetic relay includes a fixed terminal, a movable contact piece, a first contact, and a second contact. The fixed terminal includes a first surface. The movable contact piece includes a second surface disposed to face the first surface. The first contact is embedded in one of the fixed terminal or the movable contact piece to be flush with one of the first surface or the second surface. The second contact is disposed on the other of the fixed terminal or the movable contact piece to face the first contact. The second contact protrudes from the other of the first surface or the second surface toward the first contact and include a contact surface smaller than the first contact when viewed from a direction facing the first contact.
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公开(公告)号：US11621136B2
公开(公告)日：2023-04-04
申请号：US17262214
申请日：2019-02-19
申请人： OMRON Corporation
发明人： Shingo Mori , Ryota Minowa , Yasuo Hayashida , Naoki Kawaguchi , Kohei Otsuka , Hiroyuki Iwasaka
摘要： A relay includes a movable contact piece having a first movable contact and a second movable contact, a first fixed terminal having a first fixed contact, a second fixed terminal having a second fixed contact, a drive device configured to move the movable contact piece, and the wall portion disposed inside the first fixed contact and the second fixed contact in a longitudinal direction. At least a part of the wall portion is disposed at a position beyond the first fixed contact and the second fixed contact toward the movable contact piece in a moving direction of the movable contact piece. The movable contact piece has a shape so as to avoid the wall portion in a contact state where the first movable contact is in contact with the first fixed contact and the second movable contact is in contact with the second fixed contact.
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公开(公告)号：US11348750B2
公开(公告)日：2022-05-31
申请号：US17262209
申请日：2019-02-19
申请人： OMRON Corporation
发明人： Naoki Kawaguchi , Ryota Minowa , Yasuo Hayashida , Kohei Otsuka , Shingo Mori , Hiroyuki Iwasaka
摘要： A relay includes a first fixed contact, a second fixed contact, a movable contact piece having first and second movable contacts, a contact piece holding unit configured to hold the movable contact piece, and first to fourth magnets. The first magnet and the second magnet are disposed so that same poles thereof face each other. The movable contact piece is disposed between the first magnet and the second magnet in a width direction of the movable contact piece. The third magnet is disposed so as to increase a magnetic flux in a longitudinal direction of the movable contact piece at a position between the first fixed contact and the first movable contact. The fourth magnet is disposed so as to increase a magnetic flux in the longitudinal direction of the movable contact piece at a position between the second fixed contact and the second movable contact.
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公开(公告)号：US11295918B2
公开(公告)日：2022-04-05
申请号：US17012058
申请日：2020-09-04
申请人： OMRON Corporation
发明人： Naoki Kawaguchi , Ryota Minowa , Hiroyuki Harimochi , Shinichi Ogawa , Kohei Otsuka , Hiroyuki Iwasaka
摘要： A first fixed terminal includes a first support portion and a first extending portion. The first support portion is located in a closing direction with respect to a movable contact piece. The first support portion supports a first fixed contact. The first support portion extends from the first fixed contact in a first lateral direction. The first lateral direction is one direction in a longitudinal direction of the movable contact piece. The first extending portion is connected to the first support portion. The first extending portion extends in the closing direction from the first support portion. The first extending portion is disposed apart from the movable contact piece in the first lateral direction.
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公开(公告)号：US12040149B2
公开(公告)日：2024-07-16
申请号：US17421726
申请日：2019-11-18
申请人： OMRON Corporation
发明人： Yasuo Hayashida , Ryota Minowa , Shingo Mori , Naoki Kawaguchi , Kohei Otsuka , Hiroyuki Iwasaka
CPC分类号： H01H50/34 , H01H50/546
摘要： A first yoke is arranged in a contact direction with respect to a movable contact piece. A second yoke is arranged in an opening direction with respect to the movable contact piece. The first yoke and the second yoke are configured to generate a magnetic force that attracts the first yoke and the second yoke to each other when the movable contact contacts the fixed contact and is energized. The first yoke and the second yoke are arranged not to contact each other so that the movable contact piece can contact the fixed terminal in a state where the movable contact and the fixed contact are lost.
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公开(公告)号：US11784019B2
公开(公告)日：2023-10-10
申请号：US17520717
申请日：2021-11-08
申请人： OMRON Corporation
发明人： Naoki Kawaguchi , Ryota Minowa , Kohei Otsuka
摘要： An electromagnetic relay includes a base, a case, an arc extension space, a contact device, and a magnet. The contact device includes a fixed terminal, a fixed contact, a movable contact piece, a movable contact. The magnet includes a first magnet portion facing the contact device, and a second magnet portion disposed adjacent to the first magnet portion and facing the arc extension space. The magnet generates a magnetic field to extend an arc generated between the fixed contact and the movable contact. The base is separated from a midpoint of a straight line between the fixed contact and the movable contact by a distance different from a distance between the base and a center of the arc extension space. The base is separated from a center of the first magnet portion by a distance different from a distance between the base and a center of the second magnet portion.
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