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公开(公告)号：US20240355567A1
公开(公告)日：2024-10-24
申请号：US18682364
申请日：2022-11-14
发明人： Ha Su KIM , Jin Hee PARK , Young Jun SON
摘要： The present disclosure discloses an arc path formation unit and a direct current relay including the same, which can effectively guide a generated arc to the outside, including a magnet holder unit disposed between the outside of an arc chamber and the inside of a frame and including a first holder and a second holder different from each other; and a magnet unit attached to one surface of the magnet holder unit facing the arc chamber and forming a magnetic field in the arc chamber, wherein the first holder and the second holder are each bent at a predetermined angle and extended, the magnet unit is attached to both ends thereof, and a magnetic field formed in the magnet unit forms an electromagnetic force together with the electric current energizing through the direct current relay to guide the arc in a direction away from a fixed contact.
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公开(公告)号：US20240136132A1
公开(公告)日：2024-04-25
申请号：US18547511
申请日：2022-01-18
申请人： OMRON Corporation
发明人： Ayata HORIE , Hiroyuki IWASAKA , Ryota MINOWA , Shinichi OGAWA , Kohei OTSUKA
摘要： An electromagnetic relay includes a case, a movable contact piece, a fixed terminal, a driving device, and an insulating wall. The movable contact piece includes a movable contact. The fixed terminal includes a fixed contact, a contact support portion, an extension portion, and a bent portion. The contact support portion supports the fixed contact. The extension portion extends from the contact support portion in a longitudinal direction of the movable contact piece. The bent portion extends in a bent shape from the extension portion in a first direction from the fixed contact toward the movable contact, and overlaps the movable contact piece in the longitudinal direction of the movable contact piece. The driving device is configured to move the movable contact piece. The insulating wall is integral with the case and is disposed between the bent portion and the movable contact piece.
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公开(公告)号：US11908648B2
公开(公告)日：2024-02-20
申请号：US17777620
申请日：2020-12-02
摘要： A switch includes: a first stationary contact having a first stationary contact point; a second stationary contact having a second stationary contact point; a movable contact having a first movable contact, and a second movable contact point; a first magnet pair defined by magnets having surfaces facing each other, the magnets of the first magnet pair being disposed with the first stationary contact point and the first movable contact point therebetween in such a manner that the magnets of the first magnet pair become farther from each other outwardly; and a second magnet pair defined by magnets having surfaces facing each other, the magnets of the second magnet pair being disposed with the second stationary contact point and the second movable contact point therebetween in such a manner that the magnets of the second magnet pair become farther from each other outwardly.
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公开(公告)号：US20240021390A1
公开(公告)日：2024-01-18
申请号：US18052933
申请日：2022-11-06
发明人： BINGSHUI CHEN
摘要： A relay with magnetic steels for arc extinguishing includes connecting pieces having static contact points, moving spring pieces having moving contact points, a pushing piece linking to the moving spring pieces, and a driving piece providing power to the pushing piece. The static contact points are arranged on bottom ends of the connecting pieces. The moving contact points are arranged on top ends of the moving spring pieces and are arranged opposite to the static contact points. The moving contact points are controlled by the driving piece to contact or separate from the static contact points. The magnetic steels are arranged between the connecting pieces and the moving spring pieces. The magnetic steels are arranged on an outside of the connecting pieces and the moving spring pieces. Each of the magnetic steels is limited in a position to generate a bias magnetic field and performs an arc extinguishing operation.
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公开(公告)号：US20230290599A1
公开(公告)日：2023-09-14
申请号：US18013487
申请日：2021-06-21
发明人： Jung Woo YOO , Han Mi Ru KIM , Young Ho LEE
摘要： An arc path-forming part and a DC relay comprising same are disclosed. The arc path-forming part according to various embodiments of the present disclosure comprises a Halbach array and a magnet part that form a magnetic field in a space formed therein. The magnetic field formed by the Halbach array is stronger in the direction toward the space. The magnetic field formed by the Halbach array and the magnet part forms an electromagnetic force together with the current applied to each fixed contactor. Here, the electromagnetic force formed in the vicinity of each fixed contactor is formed in a direction away from the center of the space or in a direction away from each fixed contactor. Accordingly, a generated arc can be quickly extinguished and discharged by being induced by the electromagnetic force.
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公开(公告)号：US20180061600A1
公开(公告)日：2018-03-01
申请号：US15688211
申请日：2017-08-28
发明人： Masahiro ITO
CPC分类号： H01H50/321 , H01H9/443 , H01H50/14 , H01H50/30 , H01H50/38 , H01H50/42 , H01H50/443 , H01H50/642 , H01H51/06 , H01H51/28 , H01H51/30 , H01H51/36
摘要： An electromagnetic relay includes an electromagnet device, an armature and a fixed terminal. By coil current through a coil, the electromagnet device generates first magnetic flux that forces the armature and the electromagnet device together or apart in a first end in a first direction of the armature. The armature is connected with a movable contact at a second end of the first direction and forces the movable contact and a fixed contact together or apart according to coil current. The fixed terminal is electrically connected with the fixed contact, and provided around the armature so as to cross the armature as seen from a second direction perpendicular to the first direction with the armature closing the fixed and movable contacts. Electric current through the fixed terminal generates a second magnetic flux in the armature, a direction of which is opposite to that of the first magnetic flux.
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公开(公告)号：US09653222B2
公开(公告)日：2017-05-16
申请号：US14505647
申请日：2014-10-03
CPC分类号： H01H1/06 , H01H9/443 , H01H33/20 , H01H33/60 , H01H50/38 , H01H50/546 , H01H2050/025
摘要： A contact device includes a pair of fixed contacts fixedly disposed inside an arc extinguishing chamber and maintaining a predetermined interval from each other; a movable contact disposed inside the arc extinguishing chamber, and contacting to and separating from the pair of fixed contacts; a first arc root movement promotion portion formed on the pair of fixed contacts, and promoting a movement of a root of an arc in a direction away from the movable contact, the arc being generated when contacts are opened in which the movable contact moves away from the pair of fixed contacts; and a second arc root movement promotion portion formed on the movable contact, and promoting a movement of the root of the arc in a direction away from the relevant fixed contact.
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公开(公告)号：US09543099B2
公开(公告)日：2017-01-10
申请号：US14746732
申请日：2015-06-22
申请人： LSIS CO., LTD.
发明人： Jung Sik An
CPC分类号： H01H50/38 , H01H9/443 , H01H50/18 , H01H50/54 , H01H50/546 , H01H51/2209 , H01H2001/545 , H01H2051/2218 , H01H2201/008 , H01H2201/03
摘要： The present invention relates to a direct current relay, and more particularly, to a direct current relay capable of reducing an electronic repulsive force generated between a fixed contact and a movable contact by a permanent magnet installed to extinguish an arc. The direct current relay includes: a frame; first and second fixed contacts spaced from each other with a predetermined distance there between; first and second magnetic substances formed to enclose a lower part of the first and second fixed contacts; a movable contact movable to contact or to be separated from the first and second fixed contacts, having a first movable contact contactable to the first fixed contact, and having a second movable contact contactable to the second fixed contact; and a pair of permanent magnets installed on long sides of the frame.
摘要翻译： 直流继电器技术领域本发明涉及一种直流继电器，更具体地说，涉及一种直流继电器，该直流继电器能够通过安装为消除电弧的永磁体来减少在固定触头和可动触点之间产生的电子排斥力。 直流继电器包括：一个框架; 第一和第二固定触点彼此隔开预定距离; 形成为包围第一和第二固定触点的下部的第一和第二磁性物质; 可移动接触件，其能够接触或与第一和第二固定触头分离，具有可接触第一固定触头的第一可动触头，以及具有可接触第二固定触头的第二可动触点; 以及安装在框架的长边上的一对永久磁铁。
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公开(公告)号：US20160300673A1
公开(公告)日：2016-10-13
申请号：US15074912
申请日：2016-03-18
CPC分类号： H01H50/56 , H01H9/443 , H01H50/18 , H01H50/38 , H01H50/546
摘要： An electromagnetic relay includes an exciting coil, a pair of fixed contacts, a movable spring, a magnet, and a yoke in contact with the magnet. The pair of fixed contacts is arranged along a first direction. The movable spring comes into contact with or moves away from the fixed contacts in response to the turn on or off of current to the exciting coil. The magnet prolongs the arc generated between the fixed contacts and the movable spring. The magnet is adjacent to the fixed contacts along a second direction orthogonal to the first direction, and is adjacent to the exciting coil along a third direction orthogonal to the first direction and the second direction. The yoke is adjacent to the fixed contacts along the third direction in a state where the yoke is in contact with the magnet.
摘要翻译： 电磁继电器包括励磁线圈，一对固定触头，可动弹簧，磁体和与磁体接触的磁轭。 一对固定触点沿第一方向布置。 响应于对励磁线圈的电流的导通或关断，可移动弹簧与固定触点接触或远离固定触点。 磁体延长了固定触点和可动弹簧之间产生的电弧。 所述磁体沿着与所述第一方向正交的第二方向与所述固定触点相邻，并且沿着与所述第一方向和所述第二方向正交的第三方向与所述励磁线圈相邻。 在磁轭与磁体接触的状态下，磁轭沿着第三方向与固定触点相邻。
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公开(公告)号：US20160134207A1
公开(公告)日：2016-05-12
申请号：US14832780
申请日：2015-08-21
CPC分类号： G01R31/327 , G01K7/00 , G01R31/44 , H01H9/26 , H01H9/56 , H01H47/002 , H01H47/02 , H01H47/22 , H01H47/26 , H01H50/002 , H01H50/16 , H01H50/323 , H01H50/38 , H01H71/082 , H01H89/00 , H01H2009/307 , H02P1/26 , H02P1/32
摘要： One embodiment describes a method that includes, when a motor is disconnected from a power source: starting, using a control circuitry, a counter at a first voltage zero-crossing by either a source voltage or a back electromotive force generated by the motor; stopping, using the control circuitry, the counter at a next subsequent second voltage zero-crossing by either the source voltage or the back electromotive force; monitoring, using the control circuitry, a trend in counter values; and instructing, using the control circuitry, one or more switching devices to reconnect the power source to the motor after a local minimum in the counter value trend such that the source voltage is leading the back electromotive force.
摘要翻译： 一个实施例描述了一种方法，当电动机与电源断开时：使用控制电路，通过由电动机产生的源电压或反电动势在第一电压过零点启动计数器; 在所述源电压或所述反电动势的下一个随后的第二电压过零点停止所述控制电路; 监控，使用控制电路，计数值的趋势; 并且使用所述控制电路指示一个或多个开关装置在所述计数器值趋势中的局部最小值之后将所述电源重新连接到所述电动机，使得所述电源电压引导所述反电动势。
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