| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | LOW-, MEDIUM-, OR HIGH-VOLTAGE SWITCHGEAR | US14311681 | 2014-06-23 | US20140301004A1 | 2014-10-09 | Dietmar GENTSCH |
| A low-, medium-, or high-voltage voltage switchgear with a circuit breaker or circuit breakers is disclosed which can switch electrical equipment. To protect the switchgear, and the cirucuit breakers in the switchgear against so called spot welding under vacuum atmosphere, such as during a closing operation of a switchgear used, for example, for switching capacitive or inductive equipment or inductive or capacitive current network an inrush current limiter is placed electrically in line or in series with the current path of the circuit breaker. | ||||||
| 142 | CIRCUIT ARRANGEMENT FOR SUPPRESSING AN ARC OCCURRING OVER A CONTACT GAP OF A SWITCHING MEMBER | US14302505 | 2014-06-12 | US20140293666A1 | 2014-10-02 | Christopher Merz; Markus Hopf |
| The disclosure relates to a circuit arrangement for suppressing an arc occurring during a switching process, wherein a current bypass path comprises a PTC resistor connected in series with a fuse. The current bypass path is provided in parallel with a switch. The disclosure also relates to a photovoltaic power plant with a photovoltaic generator which is connected to an inverter via DC lines. In this arrangement, such a circuit arrangement is arranged in at least one of the DC lines. | ||||||
| 143 | USER-ACTUATED BUTTON ESD PROTECTION CIRCUIT WITH SPARK GAP | US13470196 | 2012-05-11 | US20130301171A1 | 2013-11-14 | Xingqun Li |
| A consumer electronic device including an electronic circuit designed to protect a user-actuated physical button from becoming degraded due to electrostatic discharges (ESD) strikes is described herein. The device includes a housing and the user-actuated physical button is exposed through the external surface of the housing. The device further includes a mechanical switch that is coupled to the physical button and a first resistor that is electrically coupled with a pair of terminals of the switch. The first resistor may be coupled either in series or in parallel with the terminals of the switch. To protect the first resistor from ESD strikes, a first spark gap is coupled in parallel with the first resistor. The device may also include a buffer circuit that is coupled to the switch. Other embodiments are also described. | ||||||
| 144 | RELAY AND POWER SUPPLY APPARATUS FOR VEHICLE | US13048101 | 2011-03-15 | US20110227409A1 | 2011-09-22 | Shigenori TAKAHASHI; Eiji Masuda |
| A relay includes contacts, a driving coil, a moving part, and a resistor. The driving coil generates a magnetic force in accordance with a command signal. The moving part is configured to be driven by the magnetic force to open and close the contacts. The resistor has a predetermined electrical resistance. When the command signal is at a first level, the relay is set to a first on-state in which the contacts are closed through the resistor. When the command signal is at a second level higher than the first level, the relay is set to a second on-state in which the contacts are closed through the moving part without the resistor. | ||||||
| 145 | Electromagnetic switch | US12115304 | 2008-05-05 | US07876185B2 | 2011-01-25 | An Dan Trinh; Kiem Cong Trinh |
| An electromechanical switch may be actuated in a plurality of modes. A base portion of the electromechanical switch includes first and second electrical ports adapted to be electrically coupled in a plurality of modes. A first electromagnetic coil defines a longitudinal axis and is adapted to receive a first energizing current. A second electromagnetic coil extends along the longitudinal axis in spaced apart relationship with the first electromagnetic coil. The second electromagnetic coil is adapted to receive a second energizing current. The first and second ports are selectively coupled in any one of open-terminated mode, attenuation mode, and a short circuit mode based on the energy state of the first and second electromagnetic coils. | ||||||
| 146 | CONTROLLING ARC ENERGY IN A HYBRID HIGH VOLTAGE DC CONTACTOR | US12416726 | 2009-04-01 | US20100254046A1 | 2010-10-07 | Zhenning Liu; Randy Fuller; Parsa Mirmobin; Guangjun Liu |
| A high voltage direct current (HVDC) power distribution system comprises at least one power bus; at least one load conductor; and a hybrid contactor for interconnecting the at least one power bus and the at least one load conductor and through which inductive energy passes upon disconnection of the at least one load conductor from the at least one power bus. A first portion of the inductive energy passes through the hybrid contactor as an arc. A second portion of the inductive energy passes through the hybrid contactor as resistively dissipated heat. | ||||||
| 147 | ELECTROMAGNETIC SWITCH | US12115304 | 2008-05-05 | US20090273420A1 | 2009-11-05 | An Dan Trinh; Kiem Cong Trinh |
| An electromechanical switch may be actuated in a plurality of modes. A base portion of the electromechanical switch includes first and second electrical ports adapted to be electrically coupled in a plurality of modes. A first electromagnetic coil defines a longitudinal axis and is adapted to receive a first energizing current. A second electromagnetic coil extends along the longitudinal axis in spaced apart relationship with the first electromagnetic coil. The second electromagnetic coil is adapted to receive a second energizing current. The first and second ports are selectively coupled in any one of open-terminated mode, attenuation mode, and a short circuit mode based on the energy state of the first and second electromagnetic coils. | ||||||
| 148 | Micro-electromechanical system based switching | US11933856 | 2007-11-01 | US07554222B2 | 2009-06-30 | Brent Charles Kumfer; William James Premerlani; Kanakasabapathi Subramanian; Kuna Venkat Satya Rama Kishore; John Park; Owen Schelenz |
| A current control device is disclosed. The current control device includes control circuitry integrally arranged with a current path and at least one micro electromechanical system (MEMS) switch pair disposed in the current path. The current control device further includes a hybrid arcless limiting technology (HALT) circuit connected in parallel with the at least one MEMS switch pair facilitating the opening of the at least one MEMS switch pair. | ||||||
| 149 | Multiple switch MEMS structure and method of manufacture | US11221745 | 2005-09-09 | US07276991B2 | 2007-10-02 | Paul J. 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. | ||||||
| 150 | Switch | US11544017 | 2006-10-06 | US20070080764A1 | 2007-04-12 | Yu Yonezawa; Naoyuki Mishima; Tadashi Nakatani; Anh Nguyen; Satoshi Ueda |
| A switch includes a first member, one end of which being secured to a substrate, multiple first beam portions respectively having multiple first contact portions, one ends of the multiple beam portions being secured to the first member, multiple contact switch portions connected in parallel, the multiple first contact portions and multiple second contact portions being in a contact state or in a non-contact state in the multiple contact switch portions, and resistors arranged respectively between the multiple contact switch portions and a common connection point to which the multiple contact switch portions are coupled. When at least one of the multiple switch portions is in a contact state, one of the resistors corresponding to the at least one of the multiple switch portions in a contact state has a resistance value greater than another one of the resistors corresponding to at least one of the multiple contact switch portions that is in a non-contact state. | ||||||
| 151 | Breaker for providing successive trip mechanism based on PTC current-limiting device | US11357773 | 2006-02-17 | US07141751B2 | 2006-11-28 | Jong-Sung Kang; Yun-Hyuk Kwon; Seok-Hyun Nam; Bang-Wook Lee; Won-Joon Choi |
| Disclosed is a breaker for providing successive trip mechanism based on PTC current-limiting device, which includes a first switch having first fixed/movable contact points; a second switch having second fixed/movable contact and connected to the first switch in parallel; PTC current-limiting device connected to the first and second switches in parallel or series and allowing a change of current flow direction from the first switch to the second switch at a fault current; a movable arm to which the movable contact points are installed at an interval therebetween and opening/closing the switches by operating the movable contact points; a fixed arm including first and second fixed arm conductors for guiding current flow toward the first fixed contact point in a normal load current mode and guiding current flow toward the second fixed contact point via the PTC current-limiting device in a fault current mode; and a successive trip means for elastically biasing the second switch by operation of the movable arm in a closing direction when both switches are closed and successively tripping both switches using time taken for releasing the elastic bias of the second switch when the movable arm is operated in a tripping direction. | ||||||
| 152 | Electric contact device | US11281949 | 2005-11-18 | US07129434B2 | 2006-10-31 | 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. | ||||||
| 153 | Electrical contacting device and method of making the same | US10725573 | 2003-12-03 | US07053739B2 | 2006-05-30 | 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. | ||||||
| 154 | High current manual disconnect system | US09895829 | 2001-06-29 | US06773307B2 | 2004-08-10 | Robert C. Beer |
| A high current circuit disconnect system includes a fuse, current limiting resistor, a manual disconnection unit, and a holder having a pair of connections for connecting the high current disconnect system to an electrical circuit. The manual disconnection unit is wired in series with the fuse and provides a user selectable circuit interrupt. A first portion of the manual disconnection unit is located in the holder, while a second portion thereof is selectively connectable to the first portion, wherein when in the connected state the path therethrough is closed, but when in the disconnected state, the path therethrough is open. The current limiting resistor is wired in parallel with the manual disconnection unit, and also in series with the fuse. | ||||||
| 155 | Method for operating a switch with a connectable current limiter and corresponding arrangement | US10475180 | 2004-03-31 | US20040150932A1 | 2004-08-05 | David Walter Branston; Karl-Hans Barnklau; Fritz Pohl; Christian Schreckinger |
| Methods for operating a power switch with at least one main current path and associated secondary current path with an arc extinguisher are known from the art. A current limiter can be used which switches from non-current limiting operation to the current limiting operation at high current loads. The invention is characterized by measures for returning the current limiter during the transition from the current limiting operation to the non-current limiting operation. Specifically power switches are provided with measures for preventing a recommutation of the arc from the secondary current path to the main current path and/or measures for returning the current limiter during the recommutation of the light art. A corresponding arrangement for carrying out the inventive method is provided with means (30 to 50) in the power switch (20) and/or current limiter (1) for preventing a switch failure of the current limiter (1) disposed in the secondary current path of the power switch (20). The current limiter can be especially a PTC current limiter (1). | ||||||
| 156 | Electrical contactor with positive temperature coefficient resistivity element | US09998837 | 2001-11-15 | US20030090351A1 | 2003-05-15 | William Weizhong Chen; R. Kent Crawford |
| The present invention provides an electrical contactor for connecting and disconnecting an electrical power source to an electrical device wherein the electrical power source is electrically connected to a line terminal having a line terminal electrical contact and the electrical device is electrically connected to a load terminal electrical contact. The electrical contactor contains a plurality of electrical contacts which contact the line and load terminal electrical contacts. A positive temperature coefficient resistivity element is electrically connected between at least one of the terminals and the electrical contactor contacts to provide arc suppression during the opening and closing of the electrical contacts | ||||||
| 157 | PTC terminals | US09952533 | 2001-09-14 | US20030052762A1 | 2003-03-20 | Rodney Raabe; Scott E. Rogers |
| A circuit breaker comprising a fixed contact; a moveable contact, which is moveable into and out of electrically conductive engagement with said fixed contact; a line terminal operatively coupling said fixed contact with a circuit to be protected by said circuit breaker; a middle terminal operatively coupling said moveable contact with said circuit to be protected, in series with said line terminal, said fixed contact and said moveable contact; and a load terminal in series with said middle terminal and operatively coupling said circuit breaker to a load, a trip mechanism responsive to at least a thermal trip element for causing the moveable contact to move out of engagement with the fixed contact in response to a given amount of thermal energy caused by current over time passing through a circuit breaker current path comprising said fixed contact, said movable contact, said line terminal, said middle terminal, said load terminal and said thermal trip element from a circuit to be protected, wherein at least one of said line terminal, said load terminal and said middle terminal is constructed of a positive temperature coefficient material and configured for introducing a predetermined resistance into a current path in said circuit breaker so as to limit current reaching a bi-metallic trip element as temperature rises, so as to protect said bi-metallic trip element from excessive thermal stress, said predetermined resistance increasing with increased temperature. | ||||||
| 158 | High current manual disconnect system | US09895829 | 2001-06-29 | US20030003807A1 | 2003-01-02 | Robert C. Beer |
| A high current circuit disconnect system includes a fuse, current limiting resistor, a manual disconnection unit, and a holder having a pair of connections for connecting the high current disconnect system to an electrical circuit. The manual disconnection unit is wired in series with the fuse and provides a user selectable circuit interrupt. A first portion of the manual disconnection unit is located in the holder, while a second portion thereof is selectively connectable to the first portion, wherein when in the connected state the path therethrough is closed, but when in the disconnected state, the path therethrough is open. The current limiting resistor is wired in parallel with the manual disconnection unit, and also in series with the fuse. | ||||||
| 159 | Circuit breaker with improved arc interruption function | US6790 | 1998-01-14 | US6128168A | 2000-10-03 | David Arnold; Anil R. Duggal; Lionel M. Levinson; Harold Jay Patchen; Larry Neil Lewis |
| A fault current interrupter is provided by the parallel combination of a polymer current limiter and a voltage dependent resistor connected across a pair of separable contacts to permit the interruption of current without the occurrence of arcing between the contacts when the contacts first become separated. The polymer current limiter is selected to have a relatively low resistance at quiescent operating currents and a substantially higher resistance at short circuit overcurrents. This allows the current to transfer away from the contacts through the polymer current limiter until the voltage across the voltage dependent resistor causes the voltage dependent resistor to become conductive and thereby transfer the current away from the polymer current limiter. | ||||||
| 160 | Micro electro-mechanical systems relay | US999420 | 1997-12-29 | US5959338A | 1999-09-28 | Daniel W. Youngner; Burgess R. Johnson |
| A relay device build using MEMS technology and having a semiconductor wafer base with a surface depression having a first electrically conductive surface pattern. A lower diaphragm is moveably positioned above the depression for contact and has a second electrically conductive surface pattern thereon. An upper diaphragm is positioned above the lower diaphragm, with a central electrode mounted between them to selectively attract and move a diaphragm upon application of voltage. A post connects the upper and lower diaphragms to move a diaphragm when the other is moved electrostatically. The diaphragms define a sealed region enclosing the central electrode. The surface patterns may be tapered at their perimiters to provide a contact contour allowing gradually increasing contact as the diaphragm moves toward the surface. The preferred wafer is a silicon wafer, and the diaphragms are polysilicon. The patterns are formed from highly conductive material like gold, while the outer regions are a high resistive, chemically stable material like CrsiN. The sealed region is evacuated to have a vacuum, or may be filed with an inert gas. In a preferrred embodiment, the sealed region is filled with a fluid having a measurable viscosity, and region is adapted to move the fluid upon electrostatic movement of the diaphragm, such that the viscosity of the fluid is selected to adjust the rate of movement of the diaphragm. | ||||||
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