| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | Circuit breaking arrangement | US14780424 | 2013-03-27 | US09530588B2 | 2016-12-27 | Kenneth Johansson |
| A circuit breaking arrangement is disclosed, which is adapted to be coupled to a transmission line arranged to carry direct current for controllably effecting discontinuation of flow of direct current in the transmission line. The circuit breaking arrangement includes a current interrupter unit adapted to, when actuated, interrupt current in the transmission line and a first resonance circuit and at least a second resonance circuit. Each of the first and the at least a second resonance circuit is adapted to, upon actuation of the current interrupter unit and when the respective resonance circuit is activated, generate a resonance current superposing current of any arc generated in the current interrupter unit after actuation thereof. At least during a predefined period immediately after actuation of the current interrupter unit a resonance current that has been generated by the first resonance circuit flows into the current interrupter unit from a different direction than a resonance current generated by the second resonance circuit would have, or vice versa. | ||||||
| 62 | Coil with Shunt Impedance for Arc Suppression using an Alternating Current Power Source or a Direct Current Power Source | US15216540 | 2016-07-21 | US20160329704A1 | 2016-11-10 | John Richard Archer |
| A device used for preventing arcs and initial power line current increase in an electrical wiring circuit in an electric circuit contains an output source terminal, an input load terminal, a suppressor coil, and a shunt circuit. The output source circuit can be either an alternating power source or a direct current power source. The suppressor coil is electrically connected in between the output power source and the input load terminal. In order to prevent arc formation and shape the current passing through the suppressor coil, the shunt circuit is electrically connected in parallel to the suppressor coil. The shunt circuit includes at least one resistor. The suppressor coil can use either a permeable coil or an air core coil. The design of the device allows a circuit breaker to be used in series without affecting the normal operation. Moreover, the device does not require resetting after use. | ||||||
| 63 | Electric circuit connected to thermal switch with three terminals | US13503238 | 2010-08-04 | US08958196B2 | 2015-02-17 | Hideaki Takeda |
| An electric circuit connected to a thermal switch with three terminals and a method for connecting the switch are realized. In an electric circuit of a common power supply, an external connection wire (first terminal) of a thermal switch arranged close to a current limiting resistor is connected to a load side (rectifier circuit), the current limiting resistor is connected between the external connection wire (first terminal) and an external connection wire (second terminal), and an external connection wire (third terminal) is connected to the output side of a power supply switch. Thus, the current limiting resistor is connected and arranged to an internal resistor unit of the thermal switch in series and to a switch unit (contact) in parallel. | ||||||
| 64 | ELECTRICAL SWITCH AND CIRCUIT BREAKER | US13677905 | 2012-11-15 | US20130134028A1 | 2013-05-30 | Adnan Kutubuddin BOHORI; Mohandas NAYAK; Sundeep KUMAR; Padmaja PARAKALA; Sudhakar Eddula REDDY |
| An electrical switch and a circuit breaker are presented herein. The electrical switch includes a graded resistance block comprising a first end having a first electrical resistivity and a second end having an electrical resistivity greater than the first electrical resistivity. The electrical switch further includes a fixed contact electrically coupled to the first end of the graded resistance block, and a sliding contact configured to slide over the graded resistance block. In addition to the components of the electrical switch, the circuit breaker also includes a forcing mechanism to slide the sliding contact over the graded resistance block from the first end to the second end. | ||||||
| 65 | Short-circuit current limiter | US12440249 | 2006-09-06 | US08149555B2 | 2012-04-03 | Jörg Dorn |
| In order to provide a power semiconductor module for power distribution and transmission, having a power semiconductor circuit which is connected via connecting lines to an energy storage device, which limits the current amplitudes that occur in the electrical fault and effectively protects the power electronics, it is proposed that the connecting lines have a weak point which breaks when the current load is above a threshold value, with the connecting lines furthermore having a resistance which is connected in parallel with the weak point. | ||||||
| 66 | Mechanical switch that reduces the effect of contact resistance | US11711523 | 2007-02-27 | US07754986B1 | 2010-07-13 | Trevor Niblock; Roozbeh Parsa; Peter J. Hopper |
| A switch structure substantially reduces the effect of contact resistance by placing two mechanical switches in parallel between a source and a load, and sequentially closing and opening the mechanical switches so that one switch closes before the other switch, and opens after the other switch. The switch structure with the two mechanical switches can be realized with standard micro machined switches or as a micro-electromechanical system (MEMS) cantilever switch. | ||||||
| 67 | Electric contact switching device and power consumption control circuit | US10577406 | 2004-09-16 | US07486488B2 | 2009-02-03 | Noboru Wakatsuki; Yu Yonezawa |
| A load is connected with a power supply. An energizing electric contact and a transient current contact are connected electrically in parallel with each other and can do time-coordinated making and breaking operation. A capacitor is connected in series with the transient current contact. During breaking operation of the energizing contact and keeping making state of the transient current contact, a transient current from the power supply flows into the capacitor and delay voltage increase of the energizing contact using voltage drop at an internal resistance of the power supply and the load. | ||||||
| 68 | Switching device combination for capacitive loads connected to direct voltage | US10578332 | 2004-11-03 | US07365622B2 | 2008-04-29 | Risto Kajan; Erkki Rajala; Mikael N{dot over (a)}hls; Simo Pöyhönen; Martti Varpela; Markku Talja |
| This publication discloses a switching device combination for capacitive loads (3) connected to a direct voltage. The switching device combination includes an actual switch component (1) for connecting voltage to the capacitive load (3), a charging switch component (2) for connecting charging voltage to the capacitive load in the initial stage, which charging switch component is dimensioned for a lower current than the actual switch component (1), a controller component (4), by means of which the actual switch component (1) is controlled from an open state to a closed state and vice versa, with the aid of a mechanical lever (5), which is connected to a first shaft (6), and delay elements (11) for delaying the connection of the actual switch component (1), so that the closed charging switch component (2) will have time to charge the capacitive load (3) before the connection of the actual switch component (1). According to the invention, the controller component (4) includes a second shaft (7), which is operationally connected to the first shaft, in order to control the charging switch component (2). | ||||||
| 69 | Direct current cutoff switch | US10517164 | 2003-05-22 | US07330097B2 | 2008-02-12 | Hideaki Takeda |
| In a direct current cutoff switch1, a PTC 5, which is a non-linear resistor, is parallel connected to a contact circuit composed of a fixed contact 4-2 and a movable contact 8-2 via electrodes 5-1. When the switch is closed, no current flows in the PTC 5 with a prescribed resistance value at 25° C., since voltage between both the electrodes 5-1 is almost “0”. When the switch is opened in order to cut off current, the contacts form a closed circuit since the PTC 5 is parallel inserted between the fixed contact 4-2 and the movable contact 8-2. For this reason, it is difficult for surge voltage to occur and an arc hardly occurs between both the contacts. The PTC 5 instantaneously heats due to passing current, reduces the resistance value and passes peak current. Then, the resistance value rises and becomes stable in a high value such that weak current which is negligible at 42V, which is rated voltage. Thus, current is substantially cut off. | ||||||
| 70 | Arc quenching device for circuit breakers | US11152257 | 2005-06-15 | US07220933B2 | 2007-05-22 | Tudor Baiatu |
| The present invention specifies an arc quenching device having improved current limitation and reduced heat losses, in the case of which a moving contact piece (31) is not subject to increased erosion and wear. For this purpose, a quenching path according to the invention is provided which takes over an arc from said contact piece (31) and comprises arc guide rails (61), a quenching chamber (71) and a current-limiting element (8). Based on circuit breakers with double interruption, the current-limiting element (8) is preferably provided between arc guide rails (62, 52) of a second contact point and provided with a blowing section (81) for additional magnetic blowing of the arc of the first contact point. | ||||||
| 71 | Electric contact switching device and power consumption control circuit | US10577406 | 2004-09-16 | US20070064356A1 | 2007-03-22 | Noboru Wakatsuki; Yu Yonezawa |
| A load is connected with a power supply. An energizing electric contact and a transient current contact are connected electrically in parallel with each other and can do time-coordinated making and breaking operation. A capacitor is connected in series with the transient current contact. During breaking operation of the energizing contact and keeping making state of the transient current contact, a transient current from the power supply flows into the capacitor and delay voltage increase of the energizing contact using voltage drop at an internal resistance of the power supply and the load. | ||||||
| 72 | Multiple switch MEMS structure and method of manufacture | US11221745 | 2005-09-09 | US20070057746A1 | 2007-03-15 | Paul Rubel |
| A multiple switch MEMS structure has a higher resistance, higher durability switch arranged in parallel with a lower resistance, less durable switch. By closing the higher resistance, high durability switch before the lower resistance, less durable switch, the lower resistance, less durable switch is protected from voltage transients and arcing which may otherwise damage the lower resistance, less durable switch. By appropriate selection of dimensions and materials, the high resistance, high durability switch may be assured to close first, as well as open first, thereby also protecting the lower resistance, less durable switch from voltage transients upon opening as well as upon closing. | ||||||
| 73 | Electric contact device | US11281949 | 2005-11-18 | US20060128177A1 | 2006-06-15 | Noboru Wakatsuki; Yu Yonezawa; Yoshio Satoh; Tadashi Nakatani; Tsutomu Miyashita |
| An electrical contact device (X1) includes a first contactor with contact portions (C1, C2) and a second contactor with contact portions (C3, C4). The device (X1) also includes an electrical circuit having a branch path (YA) provided by the contact portions (C1, C3) and a branch path (YB) provided by the contact portions (C2, C4). When closed, the branch path (YA) has a smaller resistance, and the branch path (YB) a greater resistance. In a closing operation, the first and second contactors approach each other. Then the contact portion (C1) and the contact portion (C3) contact with each other after the contact portion (C2) and the contact portion (C4) contact with each other. In an opening operation, the first and second contactors separate from each other. Then the contact portion (C1) and the contact portion (C3) separate after the contact portion (C2) and the contact portion (C4) separate. | ||||||
| 74 | Electric device, a current limiter and an electric power network | US10474961 | 2003-10-16 | US20040245857A1 | 2004-12-09 | Lars Liljestrand; Stefan Valdemarsson |
| The invention relates to an electric device comprising an electric switch (3) having a plurality of contact members arranged in series to form a plurality of breaking points arranged in series. One of the contact members at each breaking point is movable. A drive means (9) is arranged to actuate each movable contact member. The drive means (9) is arranged to effect simultaneous movement of the movable contact members. In accordance with this invention a commutation circuit (2) is connected in parallel with the electric switch (3). Each contact member constitutes a part of a contact element, which contact elements are arranged in series. The contact elements have conducting and insulating parts. Every second contact element is movable in relation the others so that moement effects a breaking or closing position of the electric switch. The invention also relates to a current limiter comprising such an electric device and also an electric power network provided with such a current limiter. | ||||||
| 75 | Electrical contacting device and method of making the same | US10725573 | 2003-12-03 | US20040155737A1 | 2004-08-12 | Noboru Wakatsuki; Yu Yonezawa; Yoshio Satoh; Tadashi Nakatani; Tsutomu Miyashita |
| An electrical contacting device includes a plurality of current paths connected in parallel to each other, and a plurality of electrical contact points each having a first contact and a second contact that are mechanically opened and closed. Each current path is provided with a corresponding one of the contact points. For prevention of the occurrence of arc discharge at the contact points, each current path has its electrical characteristics adjusted in order not to allow the passage of the minimum discharge current. | ||||||
| 76 | Method and apparatus for interrupting current through deionization of arc plasma | US09676547 | 2000-09-29 | US06667863B1 | 2003-12-23 | Edward A. Mallonen; David J. Benard; Paul T. Nolden; Mark Clayton |
| A technique is provided for enhancing performance of a circuit interrupter by deionizing arc plasma developed during an interruption event. A source material is disposed in a secondary current carrying path parallel to a primary current carrying path through the device. Upon movement of a movable contact in the primary current carrying path, current begins to flow through the source material, causing surface ablation of a material which deionizes arc plasma, resulting in greater voltage investment in the arc and more rapid extinction. | ||||||
| 77 | PTC terminals | US09952533 | 2001-09-14 | US06636133B2 | 2003-10-21 | Rodney Raabe; Scott E. Rogers |
| A circuit breaker comprises a line terminal, a middle terminal, and a load terminal, at least one of which is constructed from a positive temperature coefficient material and configured for introducing a predetermined resistance into the current path of the circuit breaker. The predetermined resistance is intended to limit current reaching a bi-metallic trip element as temperature rises so as to protect the bi-metallic trip element from excessive thermal stress, where the predetermined resistance increases with the increased temperature. | ||||||
| 78 | Current limiting circuit breaker with positive temperature coefficient resistivity (PTC) element and insertable insulating object | US09584226 | 2000-05-31 | US06437960B1 | 2002-08-20 | William Weizhong Chen; Brett Eugene Larson; Bruce F. Lindholm; Ron E. Stecker |
| The present invention provides a current limiting circuit breaker having a plurality of current responsive devices for opening a pair of contacts upon short circuit conditions. One such device is a conventional magnetic tripping mechanism. The other device utilizes an insulating object driven by a magnetic force caused by the short circuit current. Upon opening of the contacts with the use of the insulating object, let-through current flows through a secondary contact, positioned on the insulating object, to a positive temperature coefficient resistivity element which limits the current and arcing in the contacts. In an alternative embodiment, at least one steel component is added to increase the magnetic force, thereby providing a greater force on the insulating object. An insulation component is also added to further suppress any arc generated between the contacts when going from a closed state to an open state. In another alternative embodiment, the magnetic tripping mechanism is actuated by the device utilizing the insulating object driven by the magnetic force. | ||||||
| 79 | CURRENT LIMITING CIRCUIT BREAKER | US09745019 | 2000-12-20 | US20020092829A1 | 2002-07-18 | William Weizhong Chen; Frank Ehrenberger; Aaron Bottorff; Matt Sortland |
| The present invention provides a current limiting circuit breaker having a current responsive device for opening a pair of contacts or switch upon short circuit conditions. The current responsive device utilizes an insulating object driven by a magnetic force caused by a short circuit current. Upon opening of the contacts with the use of the insulating object, let-through current flows through a secondary contact, positioned on the insulating object, to a positive temperature coefficient resistivity element which limits the current and arcing in the contacts. The PTC elements could be pure metallic materials such as pure tungsten, pure iron, etc. Conductive polymer and ceramic PTC materials could also be used for some specific applications. The present invention also provides a method of electrically connecting a drive plate and a line terminal on the current limiting circuit breaker. | ||||||
| 80 | Switching device | US09984278 | 2001-10-29 | US20020057149A1 | 2002-05-16 | Dan Isaksson; Eero Pasanen; Leo Palomaki |
| The present invention relates to a switching device (14) which is arranged to switch a load (12) to a direct voltage circuit (13). The switching device (14) comprises a switching member (14a) consisting of at least three contacts (7, 8, 9), a control member (10) which controls the contacts (7, 8, 9) of the switching member (14a) and has the positions open null0null and closed null1null, and one or more spring members (16a, 16b) which are tensioned by the control member (10) and control the contacts. The switching device is characterized in that the switching member (14a) of the switching device (14) comprises a limiter arrangement which is arranged to limit closing of at least one contact (7) when the control member (10) is turned from the open null0null position into the closed null1null position, the limiter arrangement comprising a limiter (1) and a toggle joint (17) connected thereto and a solenoid (4) arranged in the toggle joint, the toggle joint (17) being arranged to be controlled by the solenoid (4), as a result of which the toggle joint (17) turns the limiter (1) so that it releases the contact (7) of the switching member (14a) whose closing has been prevented, allowing the contact to close. | ||||||
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