序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
201 ELECTRICAL SWITCHING APPARATUS INCLUDING ALTERNATING CURRENT ELECTRONIC TRIP CIRCUIT WITH ARC FAULT DETECTION CIRCUIT AND POWER SUPPLY US15261297 2016-09-09 US20160380422A1 2016-12-29 XIN XHOU; THEODORE J. MILLER; HARRY J. CARLINO
An electrical switching apparatus includes a transductor circuit that senses a direct current between an input terminal and an output terminal and outputs an alternating current proportional to the direct current. The electrical switching apparatus also includes a current sensor configured to sense an alternating current component of the direct current. The electrical switching apparatus further includes an alternating current electronic trip circuit including an arc fault detection circuit configured to detect an arc fault based on the sensed alternating current component. The alternating current electronic trip circuit is also configured to control pairs of separable contacts to trip open based on the alternating current output from the transductor circuit or the detected arc fault. The electrical switching apparatus also includes a power supply structured to provide direct current power to the alternating current electronic trip circuit.
202 Switch device US14937589 2015-11-10 US09530587B2 2016-12-27 Taito Kokubu
A switch device may have a restriction member provided between a support portion and a fixed contact point portion of a polar board for restricting movement of a movable piece to the polar board. The restriction member may have a set height from the polar board such that the restriction member abuts on the movable where the fixed contact point reaches a predetermined height from the polar board due to wear. The movable piece may be supported by the support portion to be displaceable in the longitudinal direction such that when one side of the movable piece makes contact with the first fixed contact point, in a case where the restriction member makes contact with the movable piece, the movable piece may be displaced in the longitudinal direction on a basis of the contact position with the restriction member to be disconnected from the first fixed contact point.
203 HIGH-VOLTAGE DC CIRCUIT BREAKER US15109056 2014-12-24 US20160322178A1 2016-11-03 Jung-Soo PARK; Se-Hee HAN; Hui-Dong HWANG
The present invention relates to a high-voltage direct current (DC) circuit breaker which interrupts a fault current flowing in a power transmission or power distribution DC line when a fault occurs in the DC line. The high-voltage DC circuit breaker according to the present invention comprises: a main switch, installed in the DC line, for interrupting a current in the DC line by being opened when a fault occurs in one side or the other side of the DC line; a nonlinear resistor, connected in parallel to the main switch, for consuming overvoltage; an LC circuit connected in parallel to the main switch and comprising a capacitor and an inductor that are connected to each other in series to generate LC resonance; a first switching element, connected in parallel to the LC circuit, for switching in such a manner that the polarity of a positive voltage (+VC) or a negative voltage (−VC) charged at the capacitor by the resonance of the LC circuit can be changed and charged; and a second switching element, connected between the LC circuit and the DC line so as to be connected in series to the LC circuit, for switching in such a manner that the current pulse, generated by −VC voltage or +VC voltage charged at the capacitor, can be supplied to the main switch.
204 Electrical switching apparatus including alternating current electronic trip circuit with arc fault detection circuit US14132678 2013-12-18 US09472945B2 2016-10-18 Xin Zhou; Robert W. Mueller; David R. Rohn
An electrical switching apparatus includes a transductor circuit that senses a direct current between at least one input terminal and at least one output terminal and outputs an alternating current proportional to the direct current between the input terminal and the output terminal. The electrical switching apparatus also includes a current sensor configured to sense an alternating current component of the direct current. The electrical switching apparatus further includes an alternating current electronic trip circuit including an arc fault detection circuit configured to detect an arc fault based on the sensed alternating current component. The alternating current electronic trip circuit is also configured to control pairs of separable contacts to trip open based on the alternating current output from the transductor circuit or the detected arc fault.
205 System and method for quenching an arc US14464721 2014-08-21 US09355798B2 2016-05-31 Nalini Nanrudaiyan; Linda Yvonne Jacobs; Rajendra Naik; Adnan Kutubuddin Bohori; Marcin Piotr Lagiewka; Raheel Abdulla
An arc quenching system is presented. The arc quenching system includes a mounting structure, a plurality of movable arc chute plates mounted on the mounting structure, and a motion delivery unit mechanically coupled to the mounting structure. The motion delivery unit is configured to impart at least one of a rotation motion and a vibration motion to one or more movable arc chute plates of the plurality of movable arc chute plates.
206 Electrical circuit breaker US13805112 2011-06-17 US09336964B2 2016-05-10 Rob Joseph Catharina Emiel Demandt; Johannes Hoekstra; Robert Hendrik Catharina Janssen
The invention relates to an electrical circuit breaker comprising an arc formation chamber and an arc extinguishing chamber, the arc formation chamber being at least partially bounded by a side flange or at least a part of a side wall consisting of a polymeric composition comprising a thermoplastic polymer, a triazine based flame retardant, at most 0-5 wt. % of phosphorous or halogen containing flame retardants, and 0-15 wt. % of a reinforcing agent, wherein thermoplastic polymer comprises a polyamide with a melting temperature of at least 260° C. and the triazine based flame retardant comprises at least 20 wt. % of melam, wherein the weight percentages (wt. %) are relative to the total weight of the polymeric composition.
207 ELECTRIC VEHICLE RELAY US14705865 2015-05-06 US20160079022A1 2016-03-17 Jung Sik AN
An electric vehicle relay includes: a pair of fixed electrodes; a movable electrode movable to contact or to be separated from the fixed electrode; a driving shaft which performs a vertical motion as an upper end thereof is coupled to the movable electrode; a fixed core fitted into a central part of the driving shaft with a gap; a movable core coupled to a lower end of the driving shaft and sucked by a magnetic force of the fixed core; and a cylinder configured to insertion-support the fixed core and the movable core, wherein locking protrusions are formed on an outer circumferential surface of the movable core, wherein inclined grooves for inserting the locking protrusions are formed on an inner circumferential surface of the cylinder, and wherein the movable electrode is rotated as the locking protrusions are moved along the inclined grooves when the movable core performs an up-down motion.
208 Arc shield US14201350 2014-03-07 US09281149B2 2016-03-08 Michael Fasano; Jianzhuan Lin
A circuit breaker includes a shielding component having an external portion which defines a space external to the circuit breaker housing and covers a vent in the circuit breaker housing to direct gasses and debris from the vent to an outlet. The external portion also prevents insertion of the circuit breaker into a breaker box closer than the distances defining the space. This can have the advantage of preventing arcing from the breaker contacts to the breaker box. The external portion may also prevent insertion of the circuit breaker into a breaker box such that a vent in the circuit breaker housing is blocked. In some implementations, the shielding component contains an internal portion which extends into the circuit breaker housing and is disposed to impede debris generated by contact arcing, or other debris, from entering the mechanism of the circuit breaker.
209 Switching device US13933164 2013-07-02 US09263206B2 2016-02-16 Torsten Ahlert; Jörg-Uwe Dahl; Thomas Leye
A switching device, in particular an electrical power circuit breaker, is disclosed for protecting an electrical circuit. The switching device includes two pole terminals, a switching mechanism for automatically interrupting the electrical connection of the two pole terminals in the event of an overload, electrical components for controlling the switching device and a pole cassette in which the switching mechanism is disposed in a switching chamber. The pole cassette includes at least one gas duct which is connected to the switching chamber in a gas-communicating manner and is designed to discharge gas from the pole cassette past the electrical components to the environment.
210 Electrical switch US14225756 2014-03-26 US09153392B2 2015-10-06 Jörg Borgolte; Andreas Haider; Michael Soukup
An electrical switch is disclosed including a rotatably mounted contact bridge which includes a movable contact, wherein the movable contact interacts with a stationary contact of the electrical switch for the purpose of closing or opening the electrical circuit as a result of rotation of the contact bridge. In at least one embodiment, the surfaces at the point at which contact is made between the movable contact and the stationary contact are at least partially covered by a protective material for protecting against soiling and/or damage due to contact-erosion materials, wherein the protective material is a paper-like fleece.
211 Rocker switch device US13451647 2012-04-20 US09129758B2 2015-09-08 Chien Hua Chen
Disclosed is a switch device including a housing, a plurality of components (including a conductive member, a conducting member, a switch member and an actuating member) accommodated in the housing, and a lid body disposed on the housing. Two vertical boards are disposed on a bottom portion of the housing, and a receiving space is formed in a middle part of the bottom portion. The conductive member has an electrode that is disposed on an upper side in the receiving space adjacent to the two vertical boards. A plurality of grooves are disposed on the bottom portion outside the two vertical boards. The switch member is disposed in the receiving space. A contact pad corresponding to the electrode is disposed between a bottom portion of the switch member and the actuating member at a top portion of the switch member, and is linearly aligned with the actuating member.
212 PARTICULATE AND PRESSURE REDIRECTION SHIELD FOR AN ELECTRIC CIRCUIT BREAKER US14188886 2014-02-25 US20150243460A1 2015-08-27 Scott Weber
Featured is a particulate and pressure redirection barrier for an electrical breaker as well as a breaker embodying such a barrier. Such a barrier includes first through fifth segments, where the first segment includes a first and second side section and a bottom section that are coupled to each other so as to form a generally U shaped structure. The second segment is coupled to the first side section so it extends outwardly at an angle from the first side section. The third segment is coupled to the second side section so as to extend outwardly and at an angle from the second side section. The fourth segment is coupled to the second segment so as to extend outwardly from and at an angle with respect to the second segment. The fifth segment is coupled to the third segment so as to extend outwardly from and at an angle with respect to the third segment. Such a configuration of the fourth and fifth segments is such that gas flowing along a surface of the second or third segments is redirected at an angle with respect to that surface.
213 System and Method for Charging Portable Electronic Devices US14076850 2013-11-11 US20150130402A1 2015-05-14 Edward L. O'Neill
A device charging system that uses the fact that individual devices do not need to be continuously charged for an extended charging period in order to be fully charged at the end of the period. With automatic timing and switching, different devices can be charged at different times during the charging period with the result that all the devices are fully charged at the end of the period. Several charging power boxes that fit into one or more charging cabinets that are controlled by one or more timers. Each charging power box also includes a heat sensor and circuit breaker. User appliances or electronic devices can be stacked in the cabinets, plugged into numerous outlets available on the charging power boxes and then locked inside the cabinet for overnight charging and security. Any abnormal rise in temperature within the cabinet can shut down the entire charging process.
214 Power supply circuit cut-off device and method of controlling power supply US13489659 2012-06-06 US09018550B2 2015-04-28 Yutaka Kobayashi; Masaki Okamoto
A service plug includes a lever (30) supported on a cover (20) for movement between full and partial locking positions. A housing (90) is connectable to and separable from the cover (20) as the lever (30) is moved. Heavy current terminals (50) are disconnected from a power supply circuit in a separating process of the cover (20). A detection terminal (60) is switched from an ON-state to an OFF-state in the separating process of the cover (20). A stopper (40) contacts restricting walls (25) on the cover (20) to stop a movement of the lever (30) from the full locking position toward the partial locking position until the heavy current terminals (50) are disconnected from the power supply circuit after the detection terminal (60) is switched from the ON-state to the OFF-state in the separating process of the cover (20).
215 APPARATUS AND METHOD FOR REDUCING ELECTRICAL ARCING IN A CIRCUIT BREAKER WHILE TRANSITIONING TO A CLOSED CIRCUIT CONDITION US14331955 2014-07-15 US20150069021A1 2015-03-12 Guang Yang
Apparatus and method for reducing formation of electrical arcing in a circuit breaker while transitioning to a closed circuit condition are disclosed. An electrical contact assembly (12) includes a stationary contact (14) and a movable contact (18) responsive to an operating mechanism (22) to move towards the stationary contact and initiate a closed circuit condition. An oscillatory element (30) is disposed opposite a side of the stationary contact that makes contact with the movable contact during the closed circuit condition. The oscillatory element is configured to provide a transient response effective to adapt shock energy resulting from impact of the movable contact with the stationary contact to joint oscillatory motion so that the stationary contact and the movable contact remain interconnected to one another during the joint oscillatory motion, thus reducing formation of electrical arcing while transitioning to the closed circuit condition.
216 SWITCHING DEVICE US13933164 2013-07-02 US20140055902A1 2014-02-27 Torsten AHLERT; Jörg-Uwe Dahl; Thomas LEYE
A switching device, in particular an electrical power circuit breaker, is disclosed for protecting an electrical circuit. The switching device includes two pole terminals, a switching mechanism for automatically interrupting the electrical connection of the two pole terminals in the event of an overload, electrical components for controlling the switching device and a pole cassette in which the switching mechanism is disposed in a switching chamber. The pole cassette includes at least one gas duct which is connected to the switching chamber in a gas-communicating manner and is designed to discharge gas from the pole cassette past the electrical components to the environment.
217 Power switching system including a micro-electromechanical system (MEMS) array US12984338 2011-01-04 US08350509B2 2013-01-08 Pradeep Kumar Anand; Sriram Changali; John Kenneth Hooker; Remesh Kumar Keeramthode; Brent Charles Kumfer
A switching system includes a plurality of diodes forming a diode bridge, and a micro-mechanical system (MEMS) switch array closely coupled to the plurality of diodes. The MEMS switch array is electrically connected in an (M×N) array. The (M×N) array includes a first MEMS switch leg electrically connected in parallel with a second MEMS switch leg. The first MEMS switch leg includes a first plurality of MEMS dies electrically connected in series, and the second MEMS switch leg includes a second plurality of MEMS dies electrically connected in series.
218 Noise decreasing type electromagnetic switch US13272155 2011-10-12 US08330565B2 2012-12-11 Young Hwan Eum
A noise decreasing type electromagnetic switch includes a buffer disposed between a stationary core and a contact spring to electrically support a shaft and the stationary core. The buffer includes a buffering space therein. Accordingly, impact caused at the stationary core and the shaft can be effectively absorbed even by the buffering space as well as an elastic force of the buffer. The buffer is inserted in the stationary core for coupling so as to be prevented from being separated during operations, resulting in maintaining long-term durability. Also, the buffer may support the stationary core and a metal plate, whereby an assembly process can be simplified.
219 DEVICE AND METHOD TO BREAK THE CURRENT OF A POWER TRANSMISSION OR DISTRIBUTION LINE AND CURRENT LIMITING ARRANGEMENT US13509974 2009-11-16 US20120299393A1 2012-11-29 Jürgen Häfner; Björn Jacobson
A device (13) to break an electrical current flowing through a power transmission or distribution line (14) comprises a parallel connection of a main breaker (8) and a non-linear resistor (11), where the main breaker (8) comprises at least one power semiconductor switch of a first current direction. The device (13) further comprises a series connection of a high speed switch (10) comprising at least one mechanical switch and of an auxiliary breaker (9), the auxiliary breaker having a smaller on-resistance than the main breaker (8) and comprising at least one power semiconductor switch of the first current direction. The series connection is connected in parallel to the parallel connection. In a method to use the device (13) first the auxiliary breaker (9) is opened, thereby commutating the current to the main breaker (8), afterwards the high speed switch (10) is opened and afterwards the main breaker (8) is opened thereby commutating the current to the non-linear resistor (11). The device (13) can further be used in a current limiting arrangement.
220 THERMAL OVERLOAD PROTECTION APPARATUS US13508755 2010-11-05 US20120223803A1 2012-09-06 Martin Striewe; Friedrich-Eckhard Brand; Joachim Wosgien
A thermal overload protection device includes a first and a second current-carrying element which are electrically connected to one another via at least one soldered joint that is configured to melt in an event of an overload. At least one of the current-carrying elements is an inherently resilient current-carrying element which, via the at least one soldered joint, is kept in a first form corresponding to at least one of a non-stable state and a metastable state of the inherently resilient current-carrying element. The inherently resilient current-carrying element is deformable into a second form corresponding to a stable state of the inherently resilient current-carrying element via the at least one soldered joint melting. The first and second current-carrying elements are electrically disconnected from one another with the inherently resilient current-carrying element in the second form.
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