| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | RELAY | US13882684 | 2011-10-31 | US20130214884A1 | 2013-08-22 | Shinsuke Ito; Youichi Hattori; Norihiko Nadanami; Ryuji Inoue; Takeshi Mitsuoka; Takio Kojima |
| A relay includes: a plurality of fixed terminals arranged to have fixed contacts; and a movable contact member arranged to have a plurality of movable contacts that are correspondingly opposed to the respective fixed contacts. The relay further includes: a driving structure operated to move the movable contact member such that the respective movable contacts come into contact with the corresponding fixed contacts; a plurality of first vessels provided corresponding to the respective fixed terminals and arranged to have insulating property; a second vessel joined with the plurality of first vessels; and an air-tight space formed by the plurality of fixed terminals, the plurality of first vessels and the second vessel to allow the movable contact member and the respective fixed contacts to be placed therein. | ||||||
| 162 | VACUUM INTERRUPTER FOR VACUUM CIRCUIT BREAKER | US13354267 | 2012-01-19 | US20120200376A1 | 2012-08-09 | Byung Chul KIM |
| The present invention relates to a vacuum interrupter in a vacuum circuit breaker. According to the present invention, there is provided an attraction member made of a ferromagnetic body for surrounding between the stationary electrode and movable electrode to attract a radial magnetic field generated in a radial direction between the stationary electrode and movable electrode by means of the attraction member, and through this a component of the radial magnetic field may be increased in an overall horizontal direction between the stationary electrode and movable electrode, and as a result the radial magnetic field may be further enhanced between both electrodes, thereby strengthening an arc driving force. | ||||||
| 163 | Fuses | US12478903 | 2009-06-05 | US20090315664A1 | 2009-12-24 | Allan David Crane; Christopher John Dunne |
| The present invention relates to a fuse assembly for rapid interruption of a prospective fault current. The fuse assembly includes a plurality of splitter plates. A plurality of foil elements extend between a pair of terminals and are physically supported by the splitter plates. A pair of parallel busbars are in series with the foil elements and generate a magnetic field that is substantially perpendicular to the current flowing in the foil elements. In the presence of a prospective fault current, the foil elements will melt and at arcing inception an electromagnetic force developed as a result of interaction between the magnetic field and the arc current will push the molten foil elements into the splitter plates. This increases the arc length and hence the arc voltage. At least the foil elements and the splitter plates are preferably located in flowing liquid dielectric such as MIDEL 7131, for example. The liquid dielectric flow may help to push the molten foil elements into the splitter plates and removes debris away from the arc site. | ||||||
| 164 | Electromechanical circuit breaker and method of breaking the current in said electromechanical circuit breaker | US11917783 | 2006-06-12 | US07518477B2 | 2009-04-14 | Serge Martin; Henri Duffour; Raphaël Kissling; Bjorn Fischer |
| The electromechanical circuit breaker is intended to establish and break the current in a main circuit (3, 4) and comprises a fixed contact element (5) and a moving contact element (6) which in a first position are in electrical contact with each other for carrying the current of the main circuit (3, 4). Said moving contact element (6) is adapted to be displaced to a second position in which it is separated from the fixed contact element (5) so that the current in the main circuit is cut off. The circuit breaker is provided with a blow-out device (2) comprising a magnetising coil (8) traversed by a magnetising current for producing a magnetic field (26) adapted to drive an arc generated by the separation of said two contact elements (5, 6) into an arc extinction means. The blow-out device (2) comprises electrodes (12) electrically connected to the magnetising coil (8) and adapted to cooperate with said arc in such a manner that the latter generates said magnetising current in the magnetising coil (8). The magnetic field for driving the arc is generated by the action of said arc. Said electrodes (12) are located in such a relationship with said contact elements (5, 6) that the arc generated by the separation of said two contact elements is at least partially separated into a first arc (13a) between one contact element (5) and the electrodes (12) and a second arc (13b) between the electrodes (12) and the other contact element (6). Said first or second arc (13a, 13b) is set in parallel coupling with said magnetising coil (8) connected on one side to the electrodes (12) and on the other side to one of the contact elements (5, 6). These features allow to obtain high breaking efficiency and performances even when breaking smaller currents. | ||||||
| 165 | Electromechanical Circuit Breaker and Method of Breaking the Current in Said Electromechanical Circuit Breaker | US11917783 | 2006-06-12 | US20080197113A1 | 2008-08-21 | Serge Martin; Henri Duffour; Raphael Kissling; Bjorn Fischer |
| The electromechanical circuit breaker is intended to establish and break the current in a main circuit (3, 4) and comprises a fixed contact element (5) and a moving contact element (6) which in a first position are in electrical contact with each other for carrying the current of the main circuit (3, 4). Said moving contact element (6) is adapted to be displaced to a second position in which it is separated from the fixed contact element (5) so that the current in the main circuit is cut off. The circuit breaker is provided with a blow-out device (2) comprising a magnetising coil (8) traversed by a magnetising current for producing a magnetic field (26) adapted to drive an arc generated by the separation of said two contact elements (5, 6) into an arc extinction means. The blow-out device (2) comprises electrodes (12) electrically connected to the magnetising coil (8) and adapted to cooperate with said arc in such a manner that the latter generates said magnetising current in the magnetising coil (8). The magnetic field for driving the arc is generated by the action of said arc. Said electrodes (12) are located in such a relationship with said contact elements (5, 6) that the arc generated by the separation of said two contact elements is at least partially separated into a first arc (13a) between one contact element (5) and the electrodes (12) and a second arc (13b) between the electrodes (12) and the other contact element (6). Said first or second arc (13a, 13b) is set in parallel coupling with said magnetising coil (8) connected on one side to the electrodes (12) and on the other side to one of the contact elements (5, 6). These features allow to obtain high breaking efficiency and performances even when breaking smaller currents. | ||||||
| 166 | ELECTRICAL SWITCHING APPARATUS INCLUDING A SPLIT CORE SLOT MOTOR AND METHOD OF INSTALLING A SLOT MOTOR ASSEMBLY IN A CIRCUIT INTERRUPTER | US11536079 | 2006-09-28 | US20080079519A1 | 2008-04-03 | JOHN J. SHEA; Jeffrey A. Miller; Richard P. Malingowski; William E. Beatty |
| A circuit breaker includes a housing, separable contacts, an operating mechanism structured to open and close the separable contacts, a power conductor comprising a first conductor and a second reverse loop conductor, the second reverse loop conductor carrying one of the separable contacts; and a split core slot motor. The split core slot motor comprises a first slot motor portion having a number of coupling points, and a second slot motor portion having a number of corresponding coupling points. The coupling points of the first slot motor portion engage the corresponding coupling points of the second slot motor portion to form the split core slot motor. Both of the slot motor portions cooperate to form a base of the split core slot motor. The base is disposed between the first conductor and the second reverse loop conductor. | ||||||
| 167 | Contactor for direct current and alternating current operation | US11882244 | 2007-07-31 | US20080030289A1 | 2008-02-07 | Robert Kralik |
| The invention relates to a contactor for direct current and alternating current operation with at least one contact point with a fixed contact and a movable contact, at least one permanent magnet, arranged adjacent to the contact point, for the generation of a permanent magnetic blowout field and at least one coil, arranged adjacent to the contact point, for the generation of an electromagnetic blowout field, for blowing an arc that is formed when opening the contact point into at least one arc chamber. A contactor is to be provided that allows a quick and reliable separation of the contacts and consequently also a quick and reliable extinguishing of the arcs and that allows a structure with a simple design and simple manufacture. For this purpose, the contactor has at least two contact points, wherein the movable contacts are arranged on a contact bridge, at least one permanent magnet is arranged adjacent to each contact point and the permanent magnets assigned to the two contact points are polarised in opposite directions. | ||||||
| 168 | Arc-quenching device for circuit breakers having double-break contacts | US11007213 | 2004-12-09 | US20050150870A1 | 2005-07-14 | Gerhard Schneider; Siegfried Mayer; Norbert Papok |
| The present invention relates to an arc-quenching device for circuit breakers having double-break contacts for use in low-voltage distribution systems. Provided around a prechamber (41) is a magnetic shield (91) for the purpose of intensifying the magnetic blowing action on an arc formed between the arc guide rails (51, 61) of the prechamber. In addition, a blowing loop (81) is inserted in the arc-quenching circuit and extends in sections parallel to an arc guide rail (61). Prechamber insulation having a bulge constricting the arc area likewise serves the purpose of optimizing the arc run. | ||||||
| 169 | Electromagnetic relay | US10252503 | 2002-09-24 | US06853275B2 | 2005-02-08 | Shinichi Sato; Yoshio Okamoto; Shigemitsu Aoki; Keiji Ikeda; Masato Morimuta |
| The present invention provides an electromagnetic relay that has a long service life, even when being used for interrupting high voltage, and that can be miniaturized. In this electromagnetic relay, the circuit interruption is cut-off by two or more keying circuits, which are operated by a single coil and connected in series. Thus, an amount of generated arc per keying circuit is suppressed. Consequently, the service life of the electromagnetic relay is lengthened. Moreover, the space between the contracts thereof is reduced, so that the electromagnetic relay is miniaturized. Additionally, a magnetic field for extinguishing arc is formed by a back or counter electromotive force generated when the circuit is cut-off. Thus, the generated arc is extinguished. | ||||||
| 170 | Arc extinguishing aid | US09701592 | 2001-02-08 | US06683764B1 | 2004-01-27 | Thomas Pniok |
| The invention discloses an arc extinguishing aid with an externally powered magnetic blowout coil 3 for switching low currents in which the current direction in the externally powered magnetic blowout coil 3 is switched based on the detection of the current direction in the primary circuit of a DC power switch. | ||||||
| 171 | Molded case circuit breaker | US10151291 | 2002-05-21 | US06480080B1 | 2002-11-12 | Tadashi Asada; Naoshi Uchida; Kazunori Yonemitsu; Masaru Isozaki; Toshiyuki Onchi |
| A molded case circuit breaker includes a switching mechanism and a current-interrupting section. The current-interrupting section is composed of an insulated case, fixed contact shoes arranged diagonally opposite to each other, a bridging rotary contact shoe, a contact shoe holder, and arc extinguishing devices. The fixed contact shoes are composed of linear contact shoe conductors to reduce a height of the section, and the fixed contact shoes are arranged vertically in parallel and opposite each other so that the fixed contact shoes and the rotary contact shoe form a Z-shaped conducting path. | ||||||
| 172 | Current-limiting contact arrangement | US09912000 | 2001-07-24 | US20020056705A1 | 2002-05-16 | Volker Heins; Axel Wendenius; Stefan Michel; Klaus Ochtinger; Berthold Kraemer |
| A current-limiting contact arrangement includes a conductor rail including a stationary contact and including two current loops extending at opposite sides of the conductor rail in respective planes parallel to a center plane of the contact arrangement. A contact arm including a movable contact which can be brought into and out of contact with the stationary contact is provided, the current loops extending in respective planes parallel to a center plane of the contact arrangement and along an entire opening travel of the movable contact. An arc control device including arc splitters and a cassette including a first part and a second part and an insulating material are also provided. The arc splitters are disposed in a positive-locking manner in an interior of the cassette, the contact arm and a part of the conductor rail including the stationary contact extending into the interior of the cassette, and the current loops being disposed in a positive-locking manner at outer walls of the cassette. An assembly of the cassette, the arc splitters and the conductor rail is received in a positive-locking manner by inner surfaces of a switching device enclosure. | ||||||
| 173 | Contact arc-quenching system for power switchgear | US09757092 | 2001-01-10 | US20010030173A1 | 2001-10-18 | Eduard Ulanovsky |
| Contact arc-quenching system (CAQS) of power switchgear (PSG) for application in contactors, current non-limiting automatic switches, contactor-automatic switches (air, vacuum or filled with gas, e.g., SF6.) In one basic embodiment CAQS has concentric contacts, round stationary contact 2, a circular moving contact 4 is positioned moving in radial plane; both contacts are placed into an insulation body 1 outside which constant magnets 81, 82 embraced by a clamp 9 of ferro-magnetic material are positioned on the axis of a constant magnet. In another basic embodiment CAQS constant magnets are positioned inside cylindrical contacts, and contact surface of every contact has the shape of a ring (elongated ring) in the rotating body(cylinder) butt end, and both contact surfaces are symmetrical relative to each other. There exist modifications with a contact bridge formed by moving contacts, with positioning of the constant magnet in a cartridge of ferro-magnetic material, with saddle-like constant magnet outside contacts, with current conducting soldered bosses of increased conductivity on contact surfaces. | ||||||
| 174 | Circuit breaker | US688982 | 1996-07-31 | US5837954A | 1998-11-17 | Koji Asakawa; Naoshi Uchida; Kyoji Hama |
| A bent roundabout current path (8d) rising in the shape of an inverted U is formed between a horn portion (8a) and the end portion of a fixed contact (1) where an arcing horn (8) is joined to the fixed contact (1). An arc (12) is subjected to the electromagnetic force directed to an arc-extinguishing chamber side from the magnetic field H of an current I flowing through the arc-(12)-side conductor portion of the roundabout current path (8d). Therefore, the moving-contact-(4)-side foot of the arc (12) is retained in the leading end portion of the moving contact (4) and not returned to the movable contact (3) side. | ||||||
| 175 | Method for interrupting electrical power between two conductors | US536712 | 1995-09-29 | US5587861A | 1996-12-24 | Christopher J. Wieloch; Mark A. Kappel; Jeffrey R. Annis; David J. Benard; Ellen Boehmer; Gernot Hildebrandt |
| A method for interrupting electrical power between two conductors is provided, including biasing an electrically conductive element into a conducting position between two contact regions of the conductors. The contact regions are preferably portions of arc runners coupled to the conductors. The conductors surround a magnetic core that generates an electromagnetic field due to current in the conductors. The conductive element is repelled to a non-conducting position by the electromagnetic field in response to an overcurrent condition in the conductors. A secondary response mechanism is moved in response to the overcurrent condition to maintain the conductive element in the non-conducting position. For more gradually occurring overcurrent conditions, the secondary response mechanism is attracted toward the core, displacing the conductive element to the non-conducting position. Arcs generated by movement of the conductive element are rapidly expanded under the influence of a magnetic field, thereby rapidly increasing the voltage opposing the fault current. | ||||||
| 176 | Electric switch gear with improved stationary contact configuration | US809325 | 1991-12-18 | US5313031A | 1994-05-17 | Mitsugu Takahashi; Takao Mitsuhashi; Kenichi Nishina |
| A switch is configured that: in the closed-circuit state, at least part of its movable contact arm enters into a oblong generally hexahedral space defined by its elongated stationary conductor in its closed circuit position. Both contacting and breaking of the moving contact and the fixed contact occur in the space. Overall electromagnetic forces generated by the current flowing through the stationary conductor, movable contact arm and the arc induced at the time of breaking effectively act to extend the arc toward a terminal section of the stationary conductor and to increase the arc resistance at the time just after the breaking of both the contacts. | ||||||
| 177 | Molded case circuit breaker combined accessory actuator-reset lever | US832136 | 1992-02-06 | US5172088A | 1992-12-15 | Roger J. Morgan |
| Since industrial-rated circuit breakers are often located remote from the associated protected electrical equipment it is often times necessary to monitor the operation of such electrical equipment by observing the condition of the circuit breaker contacts to ensure that such equipment remains operational. When a plurality of such circuit breakers are mounted within a common enclosure, an auxiliary device within each of the circuit breakers readily provides visual indication of the ON-OFF condition of the circuit breaker contacts. With such auxiliary devices, an actuator-reset lever is used to interface between the circuit breaker operating mechanism, the circuit breaker trip mechanism and the auxiliary device to activate the auxiliary device when the circuit breaker contacts are open and closed and to reset the trip mechanism when the circuit breaker contacts are opened. | ||||||
| 178 | Circuit breaker with current loops assisting development of the arc | US584825 | 1990-09-19 | US5142111A | 1992-08-25 | Christian Blanchard; Michel Lauraire; Didier Vigouroux |
| Circuit breaker including a spark extinction structure comprising a conducting system, having one or two current loops extending on each side of a plane of symmetry passing through an arc deflector and a fixed contact of the circuit breaker. The conducting system is obtained by plastic deformation and bending of a flat piece stamped out from a sheet of conducting material so that the wasted material is very much reduced. | ||||||
| 179 | Moving mains arc movement loop | US242094 | 1988-09-08 | US4926018A | 1990-05-15 | Clifford A. Buxton; David A. Leone |
| A contact blade for a circuit breaker configured such that the current path in the blade produces a magnetic field which affects an arc present at the contact of the blade. The configuration of the blade produces a substantially U-shaped current loop in the blade, wherein one leg of the current loop has its main component substantially parallel to, but in the direction opposite to, the main component of the current in the second leg of the loop. When an arc is formed at the contact, the current from the second leg flows through the contact and into an arc, while the current in the first leg of the loop produces a magnetic field which acts upon the arc and forces the arc off of and away from the contact. | ||||||
| 180 | Current-limiting switching element | US62091 | 1987-06-12 | US4810841A | 1989-03-07 | Johann Wolf |
| A current-limiting switching element, for whose at least one contact set comprising a movable and a fixed contact member, a device for providing an auxiliary magnetic field is arranged with an axis perpendicular to the direction of the extent of the movable contact member. It is provided that the direction of motion of the movable contact member lies in the direction of the axis of the device for providing the auxiliary magnetic field. The direction of the current to the contacts is chosen so that the movable contact member is subjected to a force repelling it from the fixed contact member with respect to the auxiliary magnetic field. | ||||||
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