With Protective Means For Switch Or Contacts Patents (Class 335/156)
-
Patent number: 11244798Abstract: Provided is a connection unit including an electromagnetic relay and a bus bar connected to the electromagnetic relay. In such a connection unit, a first bus bar connected to a first fixed contact terminal is disposed facing one surface of a movable touch piece located on an opposite side of the movable touch piece from the other surface of the movable touch piece in a contact-making and breaking direction, with a gap provided between the first bus bar and the movable touch piece in the contact-making and breaking direction, the first bus bar extends in a direction that intersects the contact-making and breaking direction and in which a first movable contact and a second movable contact of the movable touch piece are arranged, and at least part of the first bus bar lies over the movable touch piece in plan view in the contact-making and breaking direction.Type: GrantFiled: August 9, 2018Date of Patent: February 8, 2022Assignee: Omron CorporationInventors: Shingo Mori, Hiroyuki Iwasaka, Ryota Minowa
-
Patent number: 10861664Abstract: An actuator for a high-speed switch is proposed. The actuator can include a frame having multiple mounting plates and columns. The mounting plates have parts installed thereon or movably supported thereby. The columns maintain the space between the mounting plates. A permanent magnet is installed on one of the mounting plates so as to face the second driving plate, and an elastic member is installed on the mounting plate that faces the mounting plate having the permanent magnet installed thereon, so as to provide force for the movement of the second driving plate.Type: GrantFiled: December 21, 2016Date of Patent: December 8, 2020Assignee: HYOSUNG HEAVY INDUSTRIES CORPORATIONInventors: Hyun Mo An, Hui Dong Hwang, Dong Joon Sim
-
Patent number: 10535484Abstract: A touchless magnetic-only coupled solenoid trip system for a miniature circuit breaker achieves magnetic tripping using a floating plunger assembly in a solenoid coil/housing to narrow a magnetic gap between plunger and trip assembly to cause the magnetic trip The floating plunger of the solenoid can also move out of the way if the bimetal bends to cause a thermal trip.Type: GrantFiled: November 29, 2017Date of Patent: January 14, 2020Assignee: Schneider Electric USA, Inc.Inventor: Dennis W Fleege
-
Patent number: 10479297Abstract: Provided is a control apparatus configured to control update of a control program of an on-vehicle control device which controls target equipment installed in a vehicle. The control apparatus includes: a determination unit configured to determine whether or not to permit update of the control program, by using, as a criterion, operation of a drive source of the vehicle; and a control unit configured to perform a control to restrict stop of the drive source during permitted update of the control program.Type: GrantFiled: August 4, 2017Date of Patent: November 19, 2019Assignee: Sumitomo Electric Industries, Ltd.Inventor: Koji Arai
-
Patent number: 9627122Abstract: A solenoid actuator includes a housing, a bobbin assembly, a coil, and a washer. The bobbin assembly is disposed at least partially within the housing, and includes a return pole and an armature. The return pole is fixedly coupled to the housing, and the armature is axially movable within the housing. The coil is disposed within the housing and is wound around at least a portion of the bobbin assembly. The washer is disposed between the coil and a portion of the bobbin assembly and surrounds a portion of the return pole. The washer is formed of an electrical insulator material.Type: GrantFiled: September 2, 2014Date of Patent: April 18, 2017Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Deepak Pitambar Mahajan, Jimmy Wiggins, Siva Bavisetti, Narasimha Reddy Venkatarayappa
-
Patent number: 9627154Abstract: An electromagnetic contactor includes a contact device having a pair of fixed contacts disposed to maintain a predetermined distance and a movable contact disposed so as to contact to and detach from the pair of fixed contacts. An insulating cover, which covers the pair of fixed contacts except for contact portions that contact the movable contact and covers an inner surface of an insulating plate that fixes and holds the fixed contacts, is mounted on the pair of fixed contacts.Type: GrantFiled: April 2, 2015Date of Patent: April 18, 2017Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Yasuhiro Naka, Kouetsu Takaya, Kenji Suzuki
-
Patent number: 9208967Abstract: A switching device that causes a force to act on an arc to diffuse the arc, has a magnet that generates a magnetic field in a direction orthogonal to a direction of the arc, the arc being generated at moment at which a movable member is brought into contact with or separated from a contact of a fixed member to switch between electric conduction and electric cutoff. The magnet is a plastic magnet in which metal is exposed to a surface of the magnet.Type: GrantFiled: January 30, 2014Date of Patent: December 8, 2015Assignee: OMRON CorporationInventors: Tomonobu Kato, Takeshi Miyasaka, Toshinori Yamasue
-
Patent number: 9177744Abstract: The invention relates to a switching relay (1), particularly for a starting device for starting an internal combustion engine, having a contact device (5), a relay coil (2), an armature (3), and an actuating rod (4), wherein the actuating rod (4) is displaced by the armature (3) when current is applied to the relay coil (2) and the contact device (5) is actuated by the actuating rod (4), and having a contact ripping device by means of which the armature (3) and the actuating rod (4) are coupled to each other. In order to simplify assembly and disassembly, the contact ripping device is implemented having a latching device in the armature (3).Type: GrantFiled: July 20, 2010Date of Patent: November 3, 2015Assignee: Robert Bosch GmbHInventors: Thomas Biessenberger, Hartmut Wanner, Oliver Neumann, Uwe von Ehrenwall
-
Patent number: 9059523Abstract: A contact apparatus includes a case; fixed terminals having the fixed contacts arranged within the case; a movable contact member having the movable contacts provided on one surface thereof so as to come into contact or out of contact with the fixed contacts; a first yoke arranged on said one surface of the movable contact member within the case, one surface of the first yoke facing an inner surface of the case and the other surface thereof facing said one surface of the movable contact member; and a second yoke arranged on the other surface of the movable contact member within the case, the second yoke having one surface facing the other surface of the first yoke through the movable contact member. The first yoke is larger in volume than the second yoke.Type: GrantFiled: February 23, 2011Date of Patent: June 16, 2015Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Hideki Enomoto, Ritu Yamamoto, Yoshihisa Fukuda, Yoji Ikeda, Ryosuke Ozaki
-
Patent number: 8884727Abstract: Provided is an electromagnetic relay which can sufficiently dissipate heat generated from a coil to secure desired attracting force even when the electromagnetic relay is miniaturized. The electromagnetic relay includes an electromagnet block and a contact switching mechanism. A movable contact piece of the contact switching mechanism includes a contact attaching portion to which a movable contact is attached, and a first fixed portion attached to a first movable iron piece of the electromagnet block. The first fixed portion is in surface contact with the movable iron piece and is substantially equal in width dimension to the movable iron piece.Type: GrantFiled: December 20, 2012Date of Patent: November 11, 2014Assignee: OMRON CorporationInventor: Masaki Kobayashi
-
Publication number: 20140247099Abstract: In at least one embodiment, an apparatus including a relay is provided. The relay includes a coil, a terminal, and a thermal conductive material. The coil generates heat in response to a current. The terminal includes a first contact positioned thereon. The coil and the terminal define a cavity there between. The thermal conductive material is positioned in the cavity and is in thermal communication with the coil and the first contact to transfer heat from the coil to the first contact.Type: ApplicationFiled: February 24, 2014Publication date: September 4, 2014Applicant: Lear CorporationInventors: Alberto Aragones Carrete, Josep Maria Domenech, Ramon Sanchez Rovira, Francesc-Xavier Grau-Vidal, Jaume Giralt-Marcé, Joan Herrero-Sabartés, Ildefonso Cuesta-Romeo
-
Publication number: 20140225687Abstract: A switching device that causes a force to act on an arc to diffuse the arc, has a magnet that generates a magnetic field in a direction orthogonal to a direction of the arc, the arc being generated at moment at which a movable member is brought into contact with or separated from a contact of a fixed member to switch between electric conduction and electric cutoff. The magnet is a plastic magnet in which metal is exposed to a surface of the magnet.Type: ApplicationFiled: January 30, 2014Publication date: August 14, 2014Applicant: OMRON CorporationInventors: Tomonobu Kato, Takeshi Miyasaka, Toshinori Yamasue
-
Publication number: 20140055219Abstract: A switching arrangement is disclosed comprising: a control circuit; a latching relay controlled by the control circuit for connecting an AC source to an AC load; and a relief circuit in parallel with the relay and controlled by the control circuit. The relief circuit has two modes of operation: an inactive mode in which the relief circuit is non-conductive and an active mode in which the relief circuit is at least partially conductive. The relief circuit is partially conductive when spending both a time period in a conductive state and a time period in a non-conductive state during a half-cycle of the AC. The control circuit is configured to switch the relief circuit from inactive mode to active mode, and upon switching to active mode, to set the relief circuit as partially conductive for at least two half-cycles, wherein the proportion of time the relief circuit is conductive compared to non-conductive is increased for successive ones of the at least two half-cycles.Type: ApplicationFiled: December 20, 2010Publication date: February 27, 2014Applicants: RAYCHEM INTERNATIONAL (IRISH BRANCH), TYCO ELECTRONICS UK LTD.Inventors: Brendan Normoyle, Philip Foxley, Melvyn McGann, Leslie Allen
-
Publication number: 20130293324Abstract: An electromagnetic relay includes an electromagnetic part, a movable iron piece, a contact driving part, a contact which is opened and closed by driving the contact driving part with a card disposed between the movable iron piece and the contact driving part. Particularly, the card is disposed between the insulating wall and the contact driving part, a driving projection projected onto an inward surface side opposed to the insulating wall of the card is inserted in and projected from a manipulation hole made in the insulating wall, and the driving projection of the card is pressed by the movable iron piece that is operated based on excitation and demagnetization of the electromagnetic part.Type: ApplicationFiled: April 9, 2013Publication date: November 7, 2013Inventor: OMRON CORPORATION
-
Patent number: 8558126Abstract: Provided herein is a mechanism for correcting the deformation generated at a portion of the rotation pin between a single pole unit farthest away from a switching mechanism and a single pole unit adjacent thereto, and there is disclosed a correction plate provided at a portion of the pair of rotation pins located between a single pole unit farthest away from the switching mechanism and a single pole unit adjacent thereto, having a pair of rotation pin through hole portions to allow the pair of rotation pins to be penetrated, respectively, and a pair of adjustment extending portions extended in the direction in which the rotation pins penetrate at the upper or lower portion of the rotation pin through hole portions to determine the height of penetration allowance hole of the rotation pins together with the rotation pin through hole portions.Type: GrantFiled: December 3, 2010Date of Patent: October 15, 2013Assignee: LS Industrial System Co., Ltd.Inventor: Byeong Su An
-
Publication number: 20130241679Abstract: Provided is an electromagnetic relay which can sufficiently dissipate heat generated from a coil to secure desired attracting force even when the electromagnetic relay is miniaturized. The electromagnetic relay includes an electromagnet block and a contact switching mechanism. A movable contact piece of the contact switching mechanism includes a contact attaching portion to which a movable contact is attached, and a first fixed portion attached to a first movable iron piece of the electromagnet block. The first fixed portion is in surface contact with the movable iron piece and is substantially equal in width dimension to the movable iron piece.Type: ApplicationFiled: December 20, 2012Publication date: September 19, 2013Applicant: OMRON CORPORATIONInventor: Masaki Kobayashi
-
Patent number: 8486718Abstract: A magnetic system for biosensors is switchable between attraction force and repulsion force near the sensor surface. The magnetic system includes a magnetic source and a sensor. The sensor corresponds with the magnetic field in a way that the magnetic source creates inhomogeneous magnetic field lines that results in a magnetic force towards the magnetic system and which subsequently or adjacently exerts a magnetic force directed away from the magnetic system with all magnetic forces generated at the same magnetic source.Type: GrantFiled: May 8, 2007Date of Patent: July 16, 2013Assignee: Koninklijke Philips N.V.Inventors: Petrus Johannes Wilhelmus Van Lankvelt, Menno Willem Jose Prins
-
Patent number: 8410877Abstract: There is provided a drive lever incorrect assembly detection portion (9d) and (14) which causes another end portion (9a) of a drive lever (9) to protrude to a position, of a case (4), to which a cover (5) is attached such that the cover (5) cannot be attached to the case (4) in a state where the drive lever (9) is assembled in an incorrect direction.Type: GrantFiled: December 20, 2010Date of Patent: April 2, 2013Assignee: Fuji Electric FA Components & Systems Co., Ltd.Inventors: Kouetsu Takaya, Koji Okubo, Yasuhiro Naka, Kenji Suzuki
-
Publication number: 20130057369Abstract: An object of the present invention is to provide a contact switching device that does not cause a contact failure due to resin powder, and has higher contact reliability. For this, there is a contact switching device in which a movable iron core provided at one end portion of a movable shaft (145) is attracted to a fixed iron core, based on excitation and degauss of an electromagnet portion, by which the movable shaft (145) reciprocates in a shaft center direction, and a movable contact (148a) of a movable contact piece (148) arranged at another end portion of the movable shaft (145) contacts and departs from a fixed contact. Inside a magnet holder (135) containing the movable contact piece (148), metal position restricting plate (162) that can abut on at least one side of the movable contact piece (148) is arranged.Type: ApplicationFiled: March 14, 2011Publication date: March 7, 2013Inventors: Keisuke Yano, Ryuichi Hashimoto, Yasuo Hayashida, Shingo Mori
-
Patent number: 8274347Abstract: Disclosed is an electromagnetic switch, in which an arc protection member is installed in an extinguishing chamber for housing stationary electrodes and a movable contact arm, thereby protecting internal components including an upper yoke from damages caused due to arc, which is generated immediately when the movable contact arm is separated from the stationary electrodes, resulting in improvement of operation reliability as well as increase in a lifespan of the electromagnetic switch.Type: GrantFiled: January 21, 2011Date of Patent: September 25, 2012Assignee: LS Industrial Systems Co., LtdInventor: Young Hwan Eum
-
Patent number: 8217740Abstract: An electromagnetic relay comprises a coil generating magnetic force when power is distributed, a contact point part opened and closed by the magnetic force, and a fuse functional part having a conductor wired electrically in series with the contact point part and disconnected when predetermined heat quantity is received, and the fuse functional part is disposed at a position which receives arc heat generated in the contact point part when switching the contact point part from conduction state to cut-off state. Thereby, a small electromagnetic relay which enables interruption of current in all current value range can be provided.Type: GrantFiled: May 26, 2010Date of Patent: July 10, 2012Assignee: Denso CorporationInventor: Eiji Nakagawa
-
Patent number: 8207459Abstract: Disclosed is a mold cased circuit breaker (MCCB) comprising a plurality of single pole breaking units simultaneously opened and closed by a pair of common shaft pins. The MCCB effectively transmits a torque for opening or closing contacts to adjacent single pole breaking unit for electrical pole with a minimized loss, and prevents the shaft pins from being bent. The MCCB comprises a crank installed across the pair of shaft pins so as to connect the shaft pins to each other.Type: GrantFiled: July 15, 2009Date of Patent: June 26, 2012Assignee: LS Industrial Systems Co., Ltd.Inventor: Young-Deug Bae
-
Patent number: 8138864Abstract: A circuit interrupter includes a housing having a molded case made of liquid crystal polymer. Separable contacts are disposed within the housing. An operating mechanism is disposed within the housing and is structured to open and close the separable contacts. A trip mechanism is disposed within the housing and is structured to cooperate with the operating mechanism to trip open the separable contacts. The trip mechanism includes an electronic trip circuit and a rigid, conductive base providing a ground to the electronic trip circuit. The rigid, conductive base is insert molded to a portion of the molded case.Type: GrantFiled: June 1, 2009Date of Patent: March 20, 2012Assignee: Eaton CorporationInventors: Patrick W. Mills, Richard G. Benshoff, James M. McCormick
-
Publication number: 20110181382Abstract: Disclosed is an electromagnetic switch, in which an arc protection member is installed in an extinguishing chamber for housing stationary electrodes and a movable cotact arm, thereby protecting internal components including an upper yoke from damages caused due to arc, which is generated immediately when the movable cotact arm is separated from the stationary electrodes, resulting in improvement of operation reliability as well as increase in a lifespan of the electromagnetic switch.Type: ApplicationFiled: January 21, 2011Publication date: July 28, 2011Inventor: Young Hwan EUM
-
Publication number: 20110140813Abstract: A normally-closed electromagnetic relay which may be used in controlling a supply of electric current to an automotive engine starter. The electromagnetic relay is equipped with a resistor and a shirt circuit. The short circuit is created by closing of relay contacts when a relay coil is energized to establish an electric connection between ends of the resistor to supply the current from a battery to an electric motor without flowing through the resistor and opened by opening of the relay contacts when the relay coil is deenergized to supply the electric current from the battery to the electric motor through the resistor. If a motor drive signal line leading to the electromagnetic relay is disconnected when the relay coil is kept energized, it will cause the short circuit to be established to ensure the supply of current to the motor, which also avoids the melting down of the resistor.Type: ApplicationFiled: December 8, 2010Publication date: June 16, 2011Applicant: DENSO CORPORATIONInventors: Yoshiaki SUZUKI, Mitsuhiro MURATA
-
Publication number: 20100301974Abstract: An electromagnetic relay comprises a coil generating magnetic force when power is distributed, a contact point part opened and closed by the magnetic force, and a fuse functional part having a conductor wired electrically in series with the contact point part and disconnected when predetermined heat quantity is received, and the fuse functional part is disposed at a position which receives arc heat generated in the contact point part when switching the contact point part from conduction state to cut-off state. Thereby, a small electromagnetic relay which enables interruption of current in all current value range can be provided.Type: ApplicationFiled: May 26, 2010Publication date: December 2, 2010Applicant: DENSO CORPORATIONInventor: Eiji Nakagawa
-
Patent number: 7843289Abstract: An improved electromechanical switch designed to operate at frequencies from DC through microwave has terminal probe tips that are formed from an alloy of noble metal and contoured with a pattern of peaks and valleys in order to provide better contact wiping operation and capture of wear debris. The switch incorporates damper elements to reduce switching contact bounce, thus providing increased contact life as well as higher quality signal switching.Type: GrantFiled: April 23, 2008Date of Patent: November 30, 2010Assignee: Scientific Components CorporationInventors: Aron Raklyar, Gennady Simkin, Efim Polishchuk
-
Publication number: 20100289604Abstract: An electromagnetic relay switches to conduct and interrupt currents having different magnitudes and flowing though mutually opposite paths via the electromagnetic relay. The relay includes a coil generating a magnetic force and a pair of contact sections opened and closed selectively by the magnetic force. The contact sections comprise a pair of fixed contacts and a pair of movable contacts. Each fixed contacts is held by a pair of conductive fixed holders and is near a tip section of each fixed holder. The movable contacts are fixed to a conductive movable holder and moves toward and away from the fixed holders selectively in response to the magnetic force. The relay further includes two arc-extinguishing magnet members adjacent to the contact sections such that, the arc generated by interrupting one current having a magnitude larger than the other current is extended toward the tip section at each contact section.Type: ApplicationFiled: May 14, 2010Publication date: November 18, 2010Applicants: NIPPON SOKEN, INC., DENSO CORPORATION, ANDEN CO., LTD.Inventors: Kiyonari Kojima, Hisanaga Matsuoka, Atsuo Okabayashi, Hitoshi Sunohara, Makoto Kamiya, Manabu Ozaki, Wataru Hirose, Yuuko Okabayashi, Seiko Okabayashi, Haruo Okabayashi
-
Publication number: 20100237968Abstract: An electromagnet switch has a metal contact for a switch terminal that projects from a case and is wired to one end of a coil. A male connector member surrounds an outer periphery of the metal contact. The male connector member is connected to a female connector member that is provided at a tip end of a cable used for supplying electric power to the coil. Such a penetrating hole is formed in a case that reaches the metal contact. A tester terminal can contact the metal contact through the penetrating hole for conducting conductive testing of the electromagnet switch, in a commercial field.Type: ApplicationFiled: March 18, 2010Publication date: September 23, 2010Applicant: DENSO CORPORATIONInventor: Tadahiro KURASAWA
-
Publication number: 20100156578Abstract: Provided is a device mounted contactor and a method of reducing continuous charge distribution, especially in a vehicle. The contactor includes a housing, and a plurality of power terminals. The device may further include a conductance shield and support structure extending from the housing. Situated at least partially in the housing is a switch, which is capable of electrically coupling at least two of the plurality of power terminals. One or more electrically insulative covers may be provided. The contactor may also provide a fused accessory terminal, which is electrically coupled to one of the power terminals through a fuse. A method according to the present invention reduces continuous electrical charge distribution in an electrical circuit by mechanically attaching a first contactor power terminal to a battery terminal and electrically coupling a second contactor power terminal to a circuit, which may include a vehicle starter.Type: ApplicationFiled: February 25, 2010Publication date: June 24, 2010Inventors: Stephen M. Schmidt, Paul D. Lindsay, Dennis A. Maller
-
Publication number: 20100073114Abstract: The present invention relates to a magnetic protection device, in particular for an automatic circuit breaker or a disconnecting switch, preferably for use in low voltage systems. The invention also relates to an automatic circuit breaker comprising this device. The protection device (1) according to the invention comprises a low voltage circuit breaker comprising an air gap magnetic circuit (T), provided with a first portion (10) forming a first surface (11) of said air gap (T) and a second portion (20) forming a second surface (21) of the air gap (T). The first portion (10) constitutes a fixed section of the magnetic circuit, while the second portion (20) constitutes a moving section of the magnetic circuit. The magnetic circuit also comprises a flexible portion (30) that connects the first portion (10) to the second portion (20) with continuity, forming an intermediate section of magnetic circuit interposed between the fixed section and the moving section.Type: ApplicationFiled: November 8, 2007Publication date: March 25, 2010Applicant: ABB S.p.A.Inventors: Lucio Azzola, Federico Gamba
-
Patent number: 7642480Abstract: In order to reduce the breaking energy of a high-voltage or medium-voltage circuit-breaker, the interrupting chamber (10) contains two contacts (12, 14) mounted to move in opposite directions, and actuated via a single device (20). The two contacts (12, 14) are surrounded by an insulating casing (18) of tubular shape, coupled in fixed manner to the main contact (12). The contacts (12, 14) are actuated by a device having a lever (24) in which each lever arm is coupled to a link, one of the links (32) being secured to the insulating casing (18) and the other link (34) being secured to the second contact (14). The guiding of the drive tube (18) on the main contacts (12b, 14b) makes it possible to improve breaking by keeping clean gas between said main contacts.Type: GrantFiled: October 9, 2007Date of Patent: January 5, 2010Assignee: Areva T&D SAInventors: Joel Ozil, Christophe Creusot, Jean-Luc Bourgeois, Yannick Kieffel
-
Patent number: 7633361Abstract: An improved electromechanical RF switch provides enhanced reliability and lifespan by incorporating a middle plate between the case and base elements for locating the guide pins, reed holders and reeds to increase accuracy in critical component alignment. The middle plate reduces required precision during assembly of the switch, thus increasing assembly accuracy while reducing labor cost. The guide pins are made of a hard insulator such as glass to generate less wear particles, and the reed holder has a groove filled with lubricant to trap any wear particles that result from sliding friction during switch operation. Optionally, a low-friction bushing is used within the case bore to further reduce sliding friction during reed holder travel. The reeds are made of thin, flexible metal and have ends shaped so that when the ends contact switching terminals, a wiping action removes any surface contamination from both the reed ends and the terminals.Type: GrantFiled: January 28, 2009Date of Patent: December 15, 2009Assignee: Scientific Components CorporationInventors: Aron Raklyar, Gennady Simkin, Efim Polishchuk, Alexsander Meisarosh
-
Publication number: 20090267715Abstract: An electromagnetic relay capable of smoothly rotating a movable iron member by eliminating the effect of foreign matters produced on the contact surface of the movable iron piece on a core even if the drive voltage of an electromagnetic block is small. The attracting surface (12) of the movable iron piece (11) is attracted to and separated from the magnetic pole surface (8b) of the core (5) by magnetizing and demagnetizing the electromagnetic block (2) formed by wrapping a coil (7) around the core (5) to open and close a contact by driving a contact block (3). A foreign matter turnout part (13) is formed at at least either of the attraction face (12) of the movable iron piece (11) and the magnetic pole surface (8b) of the core (17).Type: ApplicationFiled: August 22, 2006Publication date: October 29, 2009Applicant: OMRON CORPORATIONInventors: Norio Fukui, Shinichi Furusho, Ryota Minowa
-
Patent number: 7532097Abstract: A circuit breaker includes a housing, separable contacts, an operating mechanism structured to open and close the separable contacts, a power conductor including a first conductor and a second reverse loop conductor, the second reverse loop conductor carrying one of the separable contacts, and a slot motor. The slot motor includes a first slot motor portion, and a second slot motor portion including a plurality of generally U-shaped slot motor laminations, a first insulative housing portion, and a second insulative housing portion. The first and second insulative housing portions interlock with one another to form a generally U-shaped insulative slot motor housing. The first and second insulative housing portions cooperatively receive the generally U-shaped slot motor laminations.Type: GrantFiled: February 12, 2007Date of Patent: May 12, 2009Assignee: Eaton CorporationInventors: Richard P. Malingowski, William G. Eberts, Mark A. Janusek
-
Patent number: 7492244Abstract: A code switch for an electrical appliance comprises triggering magnets at specific points in a rotatable rotor. Stationary opposite contacts are disposed in the housing of the code switch and wipers are provided with contact heads assigned to said opposite contacts at a disconnecting distance. When a triggering magnet is moved above an opposite contact by rotating the rotor, the contact head is pulled upward by magnetic force towards the opposite contact and the contact is closed.Type: GrantFiled: July 19, 2006Date of Patent: February 17, 2009Assignee: E.G.O. Elektro-Geraetebau GmbHInventor: Wolfgang Hamm
-
Patent number: 7482901Abstract: A circuit breaker is comprised of a make-and-break mechanism part disposed between frame plates opposite to each other; a base in which a breaking portion including cross bar, moving contact, fixed contact and arc-extinguishing device, and an over-current trip device are contained; a middle base, in which a partition wall separating the breaking portion from the make-and-break mechanism part, and the breaking portion from the over-current trip device, is provided; and a cover for covering the base and middle base. A frame of the make-and-break mechanism part is secured to the base through the middle base, and the secured part of the frame and the inner bottom face of the base are disposed in the proximity.Type: GrantFiled: June 8, 2006Date of Patent: January 27, 2009Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Kazumasa Watanabe, Hiroyuki Kakisako, Shigeki Koumoto, Takashi Iitsuka, Kouzou Maeta
-
Publication number: 20080303617Abstract: Provided is a device mounted contactor and a method of reducing continuous charge distribution, especially in a vehicle. The contactor includes a housing, and a plurality of power terminals. The device may further include a conductance shield and support structure extending from the housing. Situated at least partially in the housing is a switch, which is capable of electrically coupling at least two of the plurality of power terminals. One or more electrically insulative covers may be provided. The contactor may also provide a fused accessory terminal, which is electrically coupled to one of the power terminals through a fuse. A method according to the present invention reduces continuous electrical charge distribution in an electrical circuit by mechanically attaching a first contactor power terminal to a battery terminal and electrically coupling a second contactor power terminal to a circuit, which may include a vehicle starter.Type: ApplicationFiled: June 7, 2007Publication date: December 11, 2008Inventors: Stephen M. Schmidt, Paul D. Lindsay, Dennis A. Maller
-
Patent number: 7053739Abstract: 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.Type: GrantFiled: December 3, 2003Date of Patent: May 30, 2006Assignee: Fujitsu LimitedInventors: Noboru Wakatsuki, Yu Yonezawa, Yoshio Satoh, Tadashi Nakatani, Tsutomu Miyashita
-
Patent number: 7030722Abstract: A high-temperature shutdown protecting relay comprises a base; a L copper pin and a N copper pin are provided on the base with resting contacts provided at their bottoms respectively; stretchy copper blades are provided on the base, which are fit to the L copper pin and the N copper pin respectively, with movable contacts provided thereon, which are fit to said resting contacts; a stand is provided on the base and above the stretchy copper blades; grooves are provided on the lower side of the stand with ceramic rods for insulating the stand from the stretchy copper blades embedded therein. The high-temperature shutdown protecting relay provided by the present utility model can keep normal operating property under high temperature.Type: GrantFiled: August 8, 2005Date of Patent: April 18, 2006Inventors: Fang Yu, Jianhua Han, Yinxiang Wang
-
Patent number: 6958895Abstract: The present invention is directed to an electrical wiring protection device including a housing assembly including at least one receptacle, the at least one receptacle being configured to receive plug contact blades inserted therein. The housing assembly includes a hot line terminal, a neutral line terminal, a hot load terminal, a neutral load terminal, a hot user-accessible receptacle contact, and a neutral user accessible receptacle contact. A fault detection circuit is coupled to the hot line terminal and the neutral line terminal. The fault detection circuit is configured to detect at least one fault condition and provide a fault detect signal in response thereto. An interrupting contact assembly is coupled to the fault detection circuit. A weld breaker mechanism is coupled to the interrupting contact assembly. The weld breaker mechanism is configured to strike the first pair of contacts and/or the second pair of contacts in response to the tripping stimulus.Type: GrantFiled: July 29, 2004Date of Patent: October 25, 2005Assignee: Pass & Seymour, Inc.Inventors: Dejan Radosavljevic, Gerald R. Savicki, Jr., Richard Weeks
-
Patent number: 6729016Abstract: A modular reed switch assembly and method for making the same are provided. A switch assembly (101) includes a reed switch (206, 106) that is enclosed between a primary reed switch cover (208) and a reed switch base (104) wherein the reed switch cover and reed switch base are recessed to accommodate the reed switch. A secondary reed switch cover (102) further covers the primary reed switch cover (208) and the secondary reed switch cover (102) connects with the reed switch base (104). A protrusion (106) provides access to the electrical contacts (302) of the reed switch (206, 106) through the primary reed switch cover (208) and secondary reed switch covers (102).Type: GrantFiled: May 17, 2002Date of Patent: May 4, 2004Assignee: Honeywell International Inc.Inventors: George S. Wieger, Hugo N. Decampos, Edward J. Zielinski
-
Patent number: 6650210Abstract: A relay switching device for switching high frequency signals has high reliability and stable insertion loss. The switching device has a housing with a base and a case. The case has a bore and the base has a slot. An electromagnet is mounted in the case. A reed holder has a pair of ends. One end of the reed holder is mounted in the bore adjacent the electromagnet. A pair of terminals are mounted in the base and extend into the slot. A guide member is mounted in the slot. A conductive reed is mounted to the other end of the reed holder. The reed is supported by the guide member and extends over the terminals. The electromagnet moves the reed between an open and closed position. The guide member prevents rotation of the reed as it moves between the open and closed positions.Type: GrantFiled: March 11, 2003Date of Patent: November 18, 2003Assignee: Scientific ComponentsInventors: Aron Raklyar, Iosif Royt
-
Patent number: 6621393Abstract: An electromechanical contactor that houses an electromagnet and a mobile contact carrier within one body. The electromagnet 20 is situated at the rear of the body 10 and a command wiring plane PB is situated at the front of the power wiring plane PA. The command terminals B and the control terminals C are arranged in a forward command/control terminal block 60. The coil terminals 26 are connected to the command terminals B by transverse conductors 27 housed in grooves made between an internal surface of the body and an external surface of an arch-shaped casing.Type: GrantFiled: June 25, 2002Date of Patent: September 16, 2003Assignee: Schneider Electric Industries SAInventors: Patrick Comtois, Patrick Larcher, Alain Moreux, Régis Perrocheau
-
Patent number: 6512433Abstract: The invention concerns a protection relay, in particular of the thermal type, recessed relative to its front face (24), a recess acting as through passage for interconnection of the conductors (C) between the terminals of the relay control (23) and of the contact switch (16). The recess (27) is concealed in normal operation by a shutter consisting of a flap (26) or a fixed part (26′) of the housing (20). The interconnection conductors can consist of individual cables (C) or can be integrated to a precabling addition (40) housed in the recess.Type: GrantFiled: November 16, 2001Date of Patent: January 28, 2003Assignee: Schneider Electric Industries SAInventors: Denis Bouchard, Daniel Sinthomez
-
Patent number: 6501355Abstract: A system includes a switching device, a sound device and an evaluation device. The switching device includes a housing and a contact system disposed in the housing, the contact system including a contact piece carrier and a contact piece disposed on the contact piece carrier. The sound device produces and captures structure-borne sound waves so as to determine an equivalent criterion for determining the remaining service life of the contact piece. The evaluation device evaluates the equivalent criterion.Type: GrantFiled: March 20, 2002Date of Patent: December 31, 2002Assignee: Moeller GmbHInventors: Matthias Fenner, Frank Berger, Klaus-Jochen Froehlich, Bernd Koehler
-
Patent number: 6501356Abstract: A method for determining a remaining service life of switching contacts in an electric switching device. The method includes operating the switching contacts so as to produce structure-borne sound signals, capturing the structure-borne sound signals, performing a Fourier transform on the structure-borne sound signals in a plurality of discrete time windows so as to produce a sonogram, determining a plurality of function values using the sonogram, and evaluating the plurality of function values using an evaluation device. Also a electrical switching device including first and second switching contacts, a sound sensor configured to capture structure-borne sound signals produced by an operation of the first and second switching contacts, and an evaluation device configured to evaluate the first structure-borne signals so as to determine a remaining service life of the first and second switching contacts.Type: GrantFiled: March 20, 2002Date of Patent: December 31, 2002Assignee: Moeller GmbHInventors: Matthias Fenner, Frank Berger, Klaus-Jochen Froehlich, Eckhardt Pridoehl
-
Patent number: 6483408Abstract: A bypass conductor is provided for use in a miniature type circuit breaker. In one embodiment, the bypass conductor can include an elongated flat strap positioned in a circuit breaker housing. A first end of the bypass conductor is positioned to be adjacent to a contact arm in an open circuit position of the circuit breaker to receive current flow, especially high transient current flow. A second end of the bypass conductor is electrically coupled and/or mechanically connected to a load terminal of the circuit breaker to provide a path for current between the first and second ends. In this manner, the bypass conductor provides an alternate path for electrical current through the circuit breaker. The bi-metallic components and other sensitive elements within the circuit breaker can therefore resist the loss of useful life and other adverse operational effects caused by a high transient current event.Type: GrantFiled: October 12, 2000Date of Patent: November 19, 2002Assignee: Eaton CorporationInventors: Stephen Albert Mrenna, Edward Ethber Lias, Jr., Michael Joseph Erb
-
Patent number: 6414575Abstract: A circuit breaker which has an auxiliary coil fitted onto the primary bobbin adjacent the pole piece having a dielectric auxiliary bobbin and a dielectric bobbin housing encapsulating the auxiliary coil and forming an encapsulated auxiliary coil assembly. Both the dielectric auxiliary bobbin and the dielectric bobbin housing are comprised of a polymeric material, preferably a liquid-crystal polymer. Preferably, the liquid-crystal polymer is an aromatic liquid-crystal polyester which is reinforced with about 30% glass and has a nematic liquid-crystal structure. Furthermore, it is preferred for the dielectric strength of the liquid-crystal polymer to be about 32 KV/mm to about 35 KV/mm.Type: GrantFiled: November 21, 2000Date of Patent: July 2, 2002Assignee: Carling Technologies, Inc.Inventor: Thomas R. J. Swift
-
Patent number: 6320486Abstract: The relay has a structure with a coil, yoke and armature as well as contacts, whereby one of the contacts is connected to a terminal element via the yoke and a plug fuse. The yoke has a yoke section that extends laterally at the relay into the proximity of the bottom side. A laterally projecting spring clip is respectively secured both to the yoke section as well as to the appertaining terminal element. The two spring clips are bridged by the plug fuse attached laterally to the relay.Type: GrantFiled: May 11, 2000Date of Patent: November 20, 2001Assignee: Tyco Electronics Logistics AGInventors: Roman Dietrich, Peter Ritter