| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | ARC FAULT DETECTION METHOD AND SYSTEM | US13082470 | 2011-04-08 | US20120139550A1 | 2012-06-07 | Thomas M. Gillis; Robert L. Fillmore; William Boyd Hubbard; Richard T. Wetzel; Robert J. Norris |
| An example arc fault detection system includes an electrical system, an electrical controller, a sensor, and a master controller. The electrical controller detects a voltage of the electrical system, a current of the electrical system, or both. The sensor detects an ultraviolet light level of the electrical system. The master controller is configured to communicate with the electrical controller and the sensor. The master controller isolates the electrical system in response to receiving a signal from the electrical controller and the sensor. An example method of isolating an arc fault in an electrical system includes detecting a voltage level, a current level, and an ultraviolet light level of the electrical system. The method isolates an arc fault based on the voltage level or the current level, and the ultraviolet light level from the detecting. | ||||||
| 102 | Apparatus and method for high frequency low pressure arc flash sensor | US12855200 | 2010-08-12 | US08091429B2 | 2012-01-10 | H. Bruce Land, III |
| A pressure sensor for detecting an electric arc in an electrical switchboard, the sensor being in an enclosed case containing a conical opening, the case being placed in the switchboard. A pressure switch in the sensor is attached to the interior of the case and is electrically connected to a circuit board for transmitting a signal when a contact in the pressure switch is closed. When a pressure wave created by the electric arc enters the case through the conical opening it forces a contact on the pressure switch to close thereby completing a circuit with the circuit board which transmits the signal to, for example, a central processor, to turn off the source of electricity thereby quenching the electric arc. | ||||||
| 103 | Semiconductor device with transistor-based fuses and related programming method | US12392645 | 2009-02-25 | US08050077B2 | 2011-11-01 | Ruigang Li; David Donggang Wu; James F. Buller; Jingrong Zhou |
| A transistor-based fuse structure is realized in a semiconductor device having a semiconductor substrate, transistor devices formed on the semiconductor substrate, and the transistor-based fuse structure formed on the semiconductor substrate. The transistor-based fuse structure includes a plurality of transistor-based fuses, and the method begins by selecting, from the plurality of transistor-based fuses, a first target fuse to be programmed for operation in a low-resistance/high-current state, the first target fuse having a first source, a first gate, a first drain, and a first gate insulator layer between the first gate and the semiconductor substrate. The method applies a first set of program voltages to the first source, the first gate, and the first drain to cause breakdown of the first gate insulator layer such that current can flow from the first source to the first gate through the first gate insulator layer, and from the first gate to the first drain through the first gate insulator layer. | ||||||
| 104 | Apparatus and Method for High Frequency Low Pressure Arc Flash Sensor | US12855200 | 2010-08-12 | US20110036175A1 | 2011-02-17 | H. Bruce Land, III |
| A pressure sensor for detecting an electric arc in an electrical switchboard, the sensor being in an enclosed case containing a conical opening, the case being placed in the switchboard. A pressure switch in the sensor is attached to the interior of the case and is electrically connected to a circuit board for transmitting a signal when a contact in the pressure switch is closed. When a pressure wave created by the electric arc enters the case through the conical opening it forces a contact on the pressure switch to close thereby completing a circuit with the circuit board which transmits the signal to, for example, a central processor, to turn off the source of electricity thereby quenching the electric arc. | ||||||
| 105 | Method and apparatus for detection and control of dc arc faults | US12804541 | 2010-07-23 | US20110019444A1 | 2011-01-27 | Marv Dargatz; Martin Fornage |
| A method and apparatus for managing DC arc faults. At least a portion of the method is performed by a controller comprising at least one processor. In one embodiment, the method comprises analyzing a signature of a signal of a power converter and determining, based on analysis of the signature, whether an arc fault exists. | ||||||
| 106 | Ultra-thin, electronically conductive slice for button use | US12802181 | 2010-06-01 | US20100300853A1 | 2010-12-02 | Yi-Zen Yeh |
| An ultra-thin, electrically conductive slice for button use, which includes a non-metallic matrix and a metal mesh. The metal mesh is provided in the non-metallic matrix. A plurality of metal touch points are provided on the metal mesh and exposed out of a surface of the non-metallic matrix so as to enable the surface of the non-metallic matrix to form a dense, electrically conductive mesh. The non-metallic matrix is rubber or silica. The metal mesh is electrically conductive. | ||||||
| 107 | Switch and welding method of same | US12379905 | 2009-03-04 | US20100224468A1 | 2010-09-09 | Hisashi Matsuhashi; Atsuko Hildebrand; Anthony C. Bormes; Kenji Amimoto |
| A switch comprises a switch housing including a cover, a terminal block welded to the cover and a fixed contact point therein, a moving block provided with a boss for fitting a manual shaft of an automatic transmission and a movable contact point corresponding to the fixed contact point and movable to the switch housing and elastic seal rings interposed between inner and outer peripheral surfaces of each of the terminal block and the cover, and the operation portion. One of the cover or the terminal block is formed of a colored, laser transmissive material and the other is formed of a laser non-transmissive material. The terminal block and the cover are automatically aligned with the moving block by an elastic force of the seal ring and a thermal welding part is circularly formed by means of a laser beam on the side of the outer periphery in each of the terminal block and the cover to be aligned for coupling the terminal block with the cover to fix the alignment. | ||||||
| 108 | MEMS MICRO-SWITCH ARRAY BASED CURRENT LIMITING ARC-FLASH ELIMINATOR | US11763721 | 2007-06-15 | US20080310058A1 | 2008-12-18 | William James Premerlani; Joshua Isaac Wright; Kanakasabapathi Subramanian; John Norton Park |
| The present invention comprises MEMS enabled apparatus for the detection of arc-faults and the elimination of arc-flash conditions. The apparatus comprises an arc-flash detection component and a current limiting component. The current limiting component comprises a logic circuit in communication with the user interface, an MEMS protection circuit in communication with the logic circuit, and a switching circuit in communication with the MEMS protection circuit. The switching circuit comprises a plurality of micro-electromechanical system switching devices and a voltage limiting device, wherein the voltage limiting device is configured to prevent an over voltage event during a current limiting operation. | ||||||
| 109 | Device for detecting contact wear in switching appliances | US10573818 | 2004-09-17 | US07408357B2 | 2008-08-05 | Bernd Adam; Michael Hahn |
| A device for detecting wear of switching contacts in an electric switch appliance is disclosed, the wear of the contacts being caused at least at a pair of switching contacts appliance. The device includes a lightwave guide and a detector. A light exiting from at least one light source is capable of being injected into the lightwave guide and guided by the lightwave guide up to the detector. The lightwave guide is arranged relative to the pair(s) of switching contacts, such that the intensity of the light injected in the lightwave guide, which is measured by the detector, decreases in the switching appliance as the number of wear particles of contacts generated by the wear of the contacts increases. | ||||||
| 110 | Arrangement for monitoring electric devices on stray light arcs | US10571181 | 2004-09-09 | US20070023618A1 | 2007-02-01 | Matthias Viehmann |
| The invention concerns an arrangement for monitoring electrical equipment for the emergence of accidental arcs. The object is to more reliably recognize the occurrence of an arc on lines, cables and/or contact sites or in devices than has been possible with previously known solutions. The proposed arrangement comprises at least one electrical conductor, which connects devices, subassemblies or circuit components of the piece of electrical equipment with one another, at least one light guide or optical fiber which guides the light arising in the formation of an arc to an optical/electrical transformer, as well as a monitoring and evaluating unit electrically connected with the transformer. The optical fiber envelops one or more wire cores of the above-mentioned electrical conductor and thus simultaneously forms the electrical insulation of a line or the shielding of a cable. | ||||||
| 111 | Trip device of circuit breaker | US09390848 | 1999-09-07 | US06225588B1 | 2001-05-01 | Shozo Kaneko |
| A trip device of a circuit breaker that operates speedily when an enormous abnormal current such as short-circuit current flows is provided. The trip device includes a pressure detection space having a wall portion formed of a repeatedly usable thin plate, an operating rod which protrudes from the pressure detection space when the pressure in the pressure detection space increases, and a return spring which returns the operating rod. The pressure detection space is arranged in the vicinity of switching contacts, and the operating rod is arranged to release a trip latch mechanism when it protrudes. | ||||||
| 112 | Device for protection against overload of the switch contacts of a switching device | US981362 | 1998-04-02 | US5933303A | 1999-08-03 | Michael Hahn |
| A device for protection against overload of the switching contacts (22, 23) of a switching device (6) has an energy transducer (5) which is arranged near the switch contacts (22, 23) and is exposed to electromagnetic radiation emanating from an electric arc occurring at the switch contacts (22, 23). If the switch contacts (22, 23) are separated electrodynamically due to an overload, the energy transducer causes the circuit to be shut down by tripping solenoid (1) of a power circuit-breaker (6), for example. | ||||||
| 113 | Electronic baffle and baffle controlled microwave devices | US670662 | 1996-06-26 | US5689262A | 1997-11-18 | Jesse Clopton James |
| Microwave devices incorporate at least one photosensitive baffle that is selectively illuminated, changing the baffle's electronic characteristic from being transparent to microwave energy to being reflective thereof. That action selectively alters an electronic characteristic of the microwave device. The effect is shown applied in a number of devices, including a back lobe antenna. Undesired back lobes occuring at a principal frequency are reduced in a back plane antenna by alternately coupling and decoupling an extension to the antenna's back plane at a rate sufficiently high enough to shift the back lobes to adjacent frequencies. A photoelectrically controlled baffle suitably serves as the extension. | ||||||
| 114 | Electronic baffle and baffle controlled microwave devices | US353189 | 1994-12-09 | US5596324A | 1997-01-21 | Jesse C. James |
| Microwave devices incorporate at least one photosensitive baffle that is selectively illuminated changing the baffle's electronic characteristic from being transparent to being reflective of microwave energy. The baffle serves as a gate, tuning element, reflector and the like. Various forms of photosensitive baffles and microwave devices are presented. | ||||||
| 115 | Arc suppressor | US318442 | 1994-10-05 | US5548461A | 1996-08-20 | Jesse C. James |
| Placed in electrical circuit in shunt of the electrodes that supply current to a protected device and optically coupled to the location in the protected device where an electric arc is most likely to occur, a photosensitive device, responsive to illumination created by such an electric arc, switches to a conductive state, thereby short circuiting the electrodes feeding current to the arc and the arc is quickly extinguished. | ||||||
| 116 | Relay control apparatus | US477612 | 1990-02-09 | US5064998A | 1991-11-12 | Ronald W. Holling |
| A relay control for a cooking appliance having a heating element includes a sensor for detecting the occurrence of an arc upon a change of state of a relay coupled between the heating element and a power supply. Upon detecting an arc, the sensor provides a timing signal which is coupled to a microprocessor that controls the energization and deenergization of the relay. The microprocessor is responsive to the timing signal from the sensor to determine the time delay between the last energization/deenergization of the relay and the changing of the relay's state. From the time delay, the microprocessor determines a delay constant. Subsequently, the microprocessor energizes the relay at a time after the detection of a zero crossover point of the power supply signal, wherein the time is equal to the determined delay constant to cause the relay to change state at or slightly before a zero crossover point of the power supply signal. The sensor may take the form of an optical sensor mounted inside the housing of the relay or outside of the housing. Alternatively, the sensor may include an electromagnetic or RF pick-up coil for sensing an electromagnetic or RF signal in the radio frequency (RF) range radiated upon the generation of an arc. Alternatively, the sensor may be a vibration sensor, such as a piezoelectric transducer, capable of detecting vibrations associated with the opening or closing of the relay contacts. | ||||||
| 117 | Arc extinguishing apparatus having sensing of initial arc | US848187 | 1986-04-04 | US4754360A | 1988-06-28 | Ryosaku Nakada |
| An apparatus for extinguishing the arc which occurs between a pair of electrodes separated in the switchgear when the high voltage loaded switchgear is opened. The earliest arc is detected which occurs between a pair of electrodes. When the earliest arc is detected, a gate signal is transmitted to a pair of thyristor connected anti-parallel between a pair of electrodes. Then among those thyristors, a thyristor located in the forward direction relative to the polarity of power supply becomes conductive. As a result of the thyristor being conductive, the arc occuring between a pair of electrodes is eliminated. | ||||||
| 118 | Detection of light-producing events | US413828 | 1982-09-01 | US4516022A | 1985-05-07 | Carl E. Lindgren |
| A device for detecting undesired, light-producing events in a protected installation, for example arcing of electrical apparatus or the outbreak of fire in a building, comprises a detector for receiving light produced directly or indirectly by the undesired event and directing at least part thereof into the field of view of fiber optic means which transmits at least part of the received light to a monitoring unit. The detector is in the form of material applied to an end of the fiber optic means situated at the protected installation, the detector material being in the form of at least one light-transmitting body with a large number of light-refracting surfaces within the same which refract received light and conduct at least part of the refracted light into the field of view of the fiber optic means. | ||||||
| 119 | Switch assembly with leakage current detecting means | US46607 | 1979-06-08 | US4315116A | 1982-02-09 | Koichi Kanamaru; Misao Takeuchi |
| A movable-contact switch assembly wherein an electrically conductive leakage detecting element connected to an indicator lamp is located in the vicinity of the stationary contact elements of the switch assembly so as to detect the presence of a conductive path or paths formed between any two or more of the stationary contact elements by the deposits of carbon particles on and around the contact elements. | ||||||
| 120 | Current zero sensing and latching element for circuit breakers | US47907265 | 1965-08-12 | US3295077A | 1966-12-27 | SHAFFER HOWARD R; LUCAS JOHN C |
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