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公开(公告)号：US20240183060A1
公开(公告)日：2024-06-06
申请号：US18524486
申请日：2023-11-30
发明人： Peter J. Wawer
IPC分类号： C25F1/00 , H01H1/60 , H01M10/42 , H01M50/247 , H02J7/00
CPC分类号： C25F1/00 , H01H1/605 , H01M10/425 , H01M50/247 , H02J7/0063 , H01M2220/30
摘要： A method for removing oxidation of a contact of a trigger switch of a battery pack powered tool. The method includes receiving power from one or more battery packs coupled to the battery pack powered tool, determining, with a controller, that a trigger of the battery pack powered tool has been actuated, and providing, with a wetting circuit, power from the one or more battery packs to the contact to remove an oxidation surface film on the contact.
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公开(公告)号：US11562863B2
公开(公告)日：2023-01-24
申请号：US17222891
申请日：2021-04-05
发明人： Reinhold Henke , Robert Thorbus
摘要： A power contact electrode plasma therapy circuit includes a pair of terminals adapted to be connected to a set of switchable contact electrodes of a power contact. A plasma ignition detector is configured to detect an electrical parameter over the switchable contact electrodes indicative of the formation of plasma between the switchable contact electrodes and output a plasma ignition signal based on the electrical parameter as detected. A plasma burn memory is configured to receive and store the plasma ignition signal. A controller circuit is configured to receive from the plasma burn memory the plasma ignition signal, start a time based on receipt of the plasma ignition signal, and upon the timer meeting a time requirement, output a plasma extinguish command. A plasma extinguishing circuit, configured to bypass the pair of terminals upon receiving the trigger signal to extinguish the plasma between the switchable contact electrodes.
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公开(公告)号：US11532442B2
公开(公告)日：2022-12-20
申请号：US17250176
申请日：2019-02-21
发明人： Hideaki Takeda
IPC分类号： H01H9/30 , H01H9/50 , H01H9/54 , H01H1/60 , H01H9/02 , G05F1/569 , G05F1/571 , H01C1/16 , H01H9/42 , H01H33/16
摘要： An electronic device (10) includes: a power supply (11); a first switch (12) that is connected at least to one pole of the power supply (11) and interrupts power supplied from the power supply (11) to a load (13); a second switch (14) that is positioned on a load (13) side with reference to the first switch (12) and interrupts power supplied from the power supply (11) to the load (13); a first power line (L11) that is connected to one end portion of an electric contact of the second switch (14), the one end portion being located on a first-switch (12) side; a second power line (L12) that is connected to another end portion of the electric contact of the second switch (14); a third power line (L13) that is connected to another pole of the power supply (11); and an electric element (resistor 15) that is connected between the first and second power lines (L11, L12) in parallel to the electric contact or connected between the first and third power lines (L11, L13), such that the electric contact of the second switch (14) is not charged when the first and second switches (12, 14) interrupt power.
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公开(公告)号：US11380505B2
公开(公告)日：2022-07-05
申请号：US16473619
申请日：2018-04-25
发明人： Jiabin Lin
摘要： The disclosure provides an ultra-small electromagnetic relay with high stationary contact positioning precision, comprises: a stationary spring, a bobbin and a base which are integrated by injection molding, the stationary spring comprises a stationary spring body on which stationary contacts are disposed and a leading-out terminal of the stationary spring extending from the stationary spring body to an outer part of the base; in the leading-out terminal, a first positioning part is disposed at a position corresponding to an edge of the base; in the stationary spring body, a convex extending part extending outside the base is designed as a second positioning part; in the base, a through hole formed through the base of is provided at a position corresponding to a back surface of the stationary spring body on which the stationary contact is mounted, the back surface is designed as a third positioning part during injection molding.
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公开(公告)号：US10930459B2
公开(公告)日：2021-02-23
申请号：US16143955
申请日：2018-09-27
发明人： Ying Li , Masahiro Kaneko , Nobuo Yatsu , Kohei Takahashi , Katsuaki Koshimura , Miki Kitahara
IPC分类号： H01H50/54 , H01H50/04 , H01H45/02 , H01H51/01 , H01H50/56 , H01H50/18 , H01H1/60 , H01H50/02
摘要： An electromagnetic relay includes a fixed contact part, a movable contact part, an armature, an electromagnet, and a base. The fixed contact part includes a fixed contact. The movable contact part includes a movable contact that faces the fixed contact. The armature is formed of a magnetic material and configured to bring the movable contact into or out of contact with the fixed contact. The electromagnet is configured to generate a magnetic field to move the armature. The base holds the fixed contact part, the movable contact part, and the electromagnet. The electromagnetic relay further includes multiple electrodes configured to generate an electric field between the electrodes.
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6.发明授权公开(公告)号：US10923297B2
公开(公告)日：2021-02-16
申请号：US16109927
申请日：2018-08-23
申请人： Rohm Co., Ltd.
摘要： A switch monitoring device includes a constant current source which supplies a current to an input line or extracts a current from the input line, a switch which connects the input line to a supply voltage or to a ground voltage, a comparator which compares a voltage on the input line with a reference voltage, a logic which receives an output voltage of the comparator, a base current source which generates a base current, and a bias current circuit which generates a bias current by adjusting the base current as a base in accordance with a current control signal from the logic and the output voltage of the comparator. The constant current source generates a current by adjusting the bias current as a base.
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公开(公告)号：US10508013B2
公开(公告)日：2019-12-17
申请号：US15525198
申请日：2015-11-25
摘要： In a method for cleaning an on-load tap changer (19) in a regulating transformer (20), provision is made for the on-load tap changer (19) to comprise a moving contact (11) and a fixed contact (12); for a cleaning signal to be generated; for the moving contact (11) to be frictionally moved relative to the fixed contact (12) on the basis of the cleaning signal. An on-load tap changer (19) in a regulating transformer (20) comprises: —a moving contact (11) and a fixed contact (12); —a contact drive (17) which is coupled to the moving contact (11); —a control device (18) which is connected to the contact drive (17) and is designed in such a manner that the control device can generate a cleaning signal and can transmit said signal to the contact drive (17); wherein the contact drive (17) is designed in such a manner that the contact drive can frictionally move the moving contact (11) relative to the fixed contact (12) on the basis of the cleaning signal.
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公开(公告)号：US20180075984A1
公开(公告)日：2018-03-15
申请号：US15525198
申请日：2015-11-25
摘要： In a method for cleaning an on-load tap changer (19) in a regulating transformer (20), provision is made for the on-load tap changer (19) to comprise a moving contact (11) and a fixed contact (12); for a cleaning signal to be generated; for the moving contact (11) to be frictionally moved relative to the fixed contact (12) on the basis of the cleaning signal. An on-load tap changer (19) in a regulating transformer (20) comprises: —a moving contact (11) and a fixed contact (12); —a contact drive (17) which is coupled to the moving contact (11); —a control device (18) which is connected to the contact drive (17) and is designed in such a manner that the control device can generate a cleaning signal and can transmit said signal to the contact drive (17); wherein the contact drive (17) is designed in such a manner that the contact drive can frictionally move the moving contact (11) relative to the fixed contact (12) on the basis of the cleaning signal.
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公开(公告)号：US09818553B2
公开(公告)日：2017-11-14
申请号：US14359415
申请日：2012-11-20
申请人： SC2N
发明人： Michel Hallet
摘要： The present invention relates to an electric switch with rubbing contact (3) comprising on the one hand at least one fixed contact (9) and on the other hand at least one moving rubbing contact (3) that can move along a predefined trajectory and exhibiting a contact surface (10) intended to rub on said at least one fixed contact (9), characterized in that at least said contact surface (10) is treated by ion bombardment by virtue of an ion beam, and in that the fixed (9) and moving (3) contacts are bare.
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公开(公告)号：US09746867B2
公开(公告)日：2017-08-29
申请号：US14690646
申请日：2015-04-20
发明人： Gary L. Hess , Kirk A. Lillestolen
CPC分类号： G05F3/02 , H01H1/605 , H01R43/002
摘要： A process for automated contact wetting in a sensor circuit includes generating a first current through a contact by sequencing a first circuit on, the first current exceeding a wetting threshold of the contact, and reducing current through the contact to a second current by sequencing a second circuit on, the second current being below the wetting threshold.
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