With Protective Means For Switch Or Contacts Patents (Class 335/156)
  • Patent number: 9627122
    Abstract: 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: Grant
    Filed: September 2, 2014
    Date of Patent: April 18, 2017
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Deepak Pitambar Mahajan, Jimmy Wiggins, Siva Bavisetti, Narasimha Reddy Venkatarayappa
  • Patent number: 9627154
    Abstract: 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: Grant
    Filed: April 2, 2015
    Date of Patent: April 18, 2017
    Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Yasuhiro Naka, Kouetsu Takaya, Kenji Suzuki
  • Patent number: 9208967
    Abstract: 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: Grant
    Filed: January 30, 2014
    Date of Patent: December 8, 2015
    Assignee: OMRON Corporation
    Inventors: Tomonobu Kato, Takeshi Miyasaka, Toshinori Yamasue
  • Patent number: 9177744
    Abstract: 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: Grant
    Filed: July 20, 2010
    Date of Patent: November 3, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Thomas Biessenberger, Hartmut Wanner, Oliver Neumann, Uwe von Ehrenwall
  • Patent number: 9059523
    Abstract: 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: Grant
    Filed: February 23, 2011
    Date of Patent: June 16, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hideki Enomoto, Ritu Yamamoto, Yoshihisa Fukuda, Yoji Ikeda, Ryosuke Ozaki
  • Patent number: 8884727
    Abstract: 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: Grant
    Filed: December 20, 2012
    Date of Patent: November 11, 2014
    Assignee: OMRON Corporation
    Inventor: Masaki Kobayashi
  • Publication number: 20140247099
    Abstract: 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: Application
    Filed: February 24, 2014
    Publication date: September 4, 2014
    Applicant: Lear Corporation
    Inventors: Alberto Aragones Carrete, Josep Maria Domenech, Ramon Sanchez Rovira, Francesc-Xavier Grau-Vidal, Jaume Giralt-Marcé, Joan Herrero-Sabartés, Ildefonso Cuesta-Romeo
  • Publication number: 20140225687
    Abstract: 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: Application
    Filed: January 30, 2014
    Publication date: August 14, 2014
    Applicant: OMRON Corporation
    Inventors: Tomonobu Kato, Takeshi Miyasaka, Toshinori Yamasue
  • Publication number: 20140055219
    Abstract: 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: Application
    Filed: December 20, 2010
    Publication date: February 27, 2014
    Applicants: RAYCHEM INTERNATIONAL (IRISH BRANCH), TYCO ELECTRONICS UK LTD.
    Inventors: Brendan Normoyle, Philip Foxley, Melvyn McGann, Leslie Allen
  • Publication number: 20130293324
    Abstract: 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: Application
    Filed: April 9, 2013
    Publication date: November 7, 2013
    Inventor: OMRON CORPORATION
  • Patent number: 8558126
    Abstract: 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: Grant
    Filed: December 3, 2010
    Date of Patent: October 15, 2013
    Assignee: LS Industrial System Co., Ltd.
    Inventor: Byeong Su An
  • Publication number: 20130241679
    Abstract: 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: Application
    Filed: December 20, 2012
    Publication date: September 19, 2013
    Applicant: OMRON CORPORATION
    Inventor: Masaki Kobayashi
  • Patent number: 8486718
    Abstract: 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: Grant
    Filed: May 8, 2007
    Date of Patent: July 16, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Petrus Johannes Wilhelmus Van Lankvelt, Menno Willem Jose Prins
  • Patent number: 8410877
    Abstract: 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: Grant
    Filed: December 20, 2010
    Date of Patent: April 2, 2013
    Assignee: Fuji Electric FA Components & Systems Co., Ltd.
    Inventors: Kouetsu Takaya, Koji Okubo, Yasuhiro Naka, Kenji Suzuki
  • Publication number: 20130057369
    Abstract: 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: Application
    Filed: March 14, 2011
    Publication date: March 7, 2013
    Inventors: Keisuke Yano, Ryuichi Hashimoto, Yasuo Hayashida, Shingo Mori
  • Patent number: 8274347
    Abstract: 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: Grant
    Filed: January 21, 2011
    Date of Patent: September 25, 2012
    Assignee: LS Industrial Systems Co., Ltd
    Inventor: Young Hwan Eum
  • Patent number: 8217740
    Abstract: 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: Grant
    Filed: May 26, 2010
    Date of Patent: July 10, 2012
    Assignee: Denso Corporation
    Inventor: Eiji Nakagawa
  • Patent number: 8207459
    Abstract: 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: Grant
    Filed: July 15, 2009
    Date of Patent: June 26, 2012
    Assignee: LS Industrial Systems Co., Ltd.
    Inventor: Young-Deug Bae
  • Patent number: 8138864
    Abstract: 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: Grant
    Filed: June 1, 2009
    Date of Patent: March 20, 2012
    Assignee: Eaton Corporation
    Inventors: Patrick W. Mills, Richard G. Benshoff, James M. McCormick
  • Publication number: 20110181382
    Abstract: 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: Application
    Filed: January 21, 2011
    Publication date: July 28, 2011
    Inventor: Young Hwan EUM
  • Publication number: 20110140813
    Abstract: 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: Application
    Filed: December 8, 2010
    Publication date: June 16, 2011
    Applicant: DENSO CORPORATION
    Inventors: Yoshiaki SUZUKI, Mitsuhiro MURATA
  • Publication number: 20100301974
    Abstract: 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: Application
    Filed: May 26, 2010
    Publication date: December 2, 2010
    Applicant: DENSO CORPORATION
    Inventor: Eiji Nakagawa
  • Patent number: 7843289
    Abstract: 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: Grant
    Filed: April 23, 2008
    Date of Patent: November 30, 2010
    Assignee: Scientific Components Corporation
    Inventors: Aron Raklyar, Gennady Simkin, Efim Polishchuk
  • Publication number: 20100289604
    Abstract: 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: Application
    Filed: May 14, 2010
    Publication date: November 18, 2010
    Applicants: 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: 20100237968
    Abstract: 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: Application
    Filed: March 18, 2010
    Publication date: September 23, 2010
    Applicant: DENSO CORPORATION
    Inventor: Tadahiro KURASAWA
  • Publication number: 20100156578
    Abstract: 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: Application
    Filed: February 25, 2010
    Publication date: June 24, 2010
    Inventors: Stephen M. Schmidt, Paul D. Lindsay, Dennis A. Maller
  • Publication number: 20100073114
    Abstract: 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: Application
    Filed: November 8, 2007
    Publication date: March 25, 2010
    Applicant: ABB S.p.A.
    Inventors: Lucio Azzola, Federico Gamba
  • Patent number: 7642480
    Abstract: 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: Grant
    Filed: October 9, 2007
    Date of Patent: January 5, 2010
    Assignee: Areva T&D SA
    Inventors: Joel Ozil, Christophe Creusot, Jean-Luc Bourgeois, Yannick Kieffel
  • Patent number: 7633361
    Abstract: 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: Grant
    Filed: January 28, 2009
    Date of Patent: December 15, 2009
    Assignee: Scientific Components Corporation
    Inventors: Aron Raklyar, Gennady Simkin, Efim Polishchuk, Alexsander Meisarosh
  • Publication number: 20090267715
    Abstract: 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: Application
    Filed: August 22, 2006
    Publication date: October 29, 2009
    Applicant: OMRON CORPORATION
    Inventors: Norio Fukui, Shinichi Furusho, Ryota Minowa
  • Patent number: 7532097
    Abstract: 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: Grant
    Filed: February 12, 2007
    Date of Patent: May 12, 2009
    Assignee: Eaton Corporation
    Inventors: Richard P. Malingowski, William G. Eberts, Mark A. Janusek
  • Patent number: 7492244
    Abstract: 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: Grant
    Filed: July 19, 2006
    Date of Patent: February 17, 2009
    Assignee: E.G.O. Elektro-Geraetebau GmbH
    Inventor: Wolfgang Hamm
  • Patent number: 7482901
    Abstract: 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: Grant
    Filed: June 8, 2006
    Date of Patent: January 27, 2009
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kazumasa Watanabe, Hiroyuki Kakisako, Shigeki Koumoto, Takashi Iitsuka, Kouzou Maeta
  • Publication number: 20080303617
    Abstract: 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: Application
    Filed: June 7, 2007
    Publication date: December 11, 2008
    Inventors: Stephen M. Schmidt, Paul D. Lindsay, Dennis A. Maller
  • Patent number: 7053739
    Abstract: 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: Grant
    Filed: December 3, 2003
    Date of Patent: May 30, 2006
    Assignee: Fujitsu Limited
    Inventors: Noboru Wakatsuki, Yu Yonezawa, Yoshio Satoh, Tadashi Nakatani, Tsutomu Miyashita
  • Patent number: 7030722
    Abstract: 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: Grant
    Filed: August 8, 2005
    Date of Patent: April 18, 2006
    Inventors: Fang Yu, Jianhua Han, Yinxiang Wang
  • Patent number: 6958895
    Abstract: 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: Grant
    Filed: July 29, 2004
    Date of Patent: October 25, 2005
    Assignee: Pass & Seymour, Inc.
    Inventors: Dejan Radosavljevic, Gerald R. Savicki, Jr., Richard Weeks
  • Patent number: 6729016
    Abstract: 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: Grant
    Filed: May 17, 2002
    Date of Patent: May 4, 2004
    Assignee: Honeywell International Inc.
    Inventors: George S. Wieger, Hugo N. Decampos, Edward J. Zielinski
  • Patent number: 6650210
    Abstract: 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: Grant
    Filed: March 11, 2003
    Date of Patent: November 18, 2003
    Assignee: Scientific Components
    Inventors: Aron Raklyar, Iosif Royt
  • Patent number: 6621393
    Abstract: 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: Grant
    Filed: June 25, 2002
    Date of Patent: September 16, 2003
    Assignee: Schneider Electric Industries SA
    Inventors: Patrick Comtois, Patrick Larcher, Alain Moreux, Régis Perrocheau
  • Patent number: 6512433
    Abstract: 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: Grant
    Filed: November 16, 2001
    Date of Patent: January 28, 2003
    Assignee: Schneider Electric Industries SA
    Inventors: Denis Bouchard, Daniel Sinthomez
  • Patent number: 6501355
    Abstract: 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: Grant
    Filed: March 20, 2002
    Date of Patent: December 31, 2002
    Assignee: Moeller GmbH
    Inventors: Matthias Fenner, Frank Berger, Klaus-Jochen Froehlich, Bernd Koehler
  • Patent number: 6501356
    Abstract: 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: Grant
    Filed: March 20, 2002
    Date of Patent: December 31, 2002
    Assignee: Moeller GmbH
    Inventors: Matthias Fenner, Frank Berger, Klaus-Jochen Froehlich, Eckhardt Pridoehl
  • Patent number: 6483408
    Abstract: 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: Grant
    Filed: October 12, 2000
    Date of Patent: November 19, 2002
    Assignee: Eaton Corporation
    Inventors: Stephen Albert Mrenna, Edward Ethber Lias, Jr., Michael Joseph Erb
  • Patent number: 6414575
    Abstract: 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: Grant
    Filed: November 21, 2000
    Date of Patent: July 2, 2002
    Assignee: Carling Technologies, Inc.
    Inventor: Thomas R. J. Swift
  • Patent number: 6320486
    Abstract: 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: Grant
    Filed: May 11, 2000
    Date of Patent: November 20, 2001
    Assignee: Tyco Electronics Logistics AG
    Inventors: Roman Dietrich, Peter Ritter
  • Patent number: 6229416
    Abstract: In a magnetic switch for a starter, an impact force due to return force of a contact pressing coil spring 25 for a plate shaped movable contact 19 is received by a collar 18a formed integral with a movable non-magnetic shaft 18, and an insulative spring stopper member 22 having a cylindrical portion 22a is disposed beneath the contact pressing coil spring concentrically therewith in an overlapping manner along the movable non-magnetic shaft. A hollow cylindrical coil 14 is secured by a casing side plate 16 of a casing 15 and another side plate 17 having a tapered cylindrical protrusion 17a in axial and radial directions with respect to a magnetic core including the side plates 16, 17 and the casing 15.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: May 8, 2001
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Koohei Ebihara, Tamotsu Tokita
  • Patent number: 6094117
    Abstract: An electromagnetic switching device (2) with restricted guidance, in which the closure contacts do not come into contact when the break contact is welded or fixed. An elastically resilient transmission lever (10) is provided to establish the effective connection between the armature (8) and the contact support (12) extending at a distance from and parallel to the armature.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: July 25, 2000
    Assignee: Kloeckner-Moeller GmbH.
    Inventor: Klaus Dieter Nuerenberg
  • Patent number: 6043728
    Abstract: Provided are non-halogen, flame-resistant, resin materials and resin magnet materials, and also electron beam controllers comprising the resin magnet materials. The resin material comprises (A) a non-halogen resin composition, (B) a metal oxide hydrate, and (C) one or both of antimony trioxide and zinc borate. The resin magnet material comprises those components (A), (B) and C), and (D) a magnetic material. In the electron beam controller, the four-pole and 6-pole convergence magnets and the two-pole purity controller magnets are made of the resin magnet materials.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: March 28, 2000
    Assignees: Kaneka Corporation, Tochigi Kaneka Corporation
    Inventors: Takeshi Ida, Naoshi Marutani
  • Patent number: 6040750
    Abstract: A switching device is provided which includes a magnet system having a yoke which is elastically mounted by means of a volute spring. The volute spring permits the yoke to be displaced as far as closure of the magnet system. As a result, it is possible to prevent current overloading of the magnet system coil in the case of a welded break contact of the switching device.
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: March 21, 2000
    Assignee: Siemens Aktiengesellschaft
    Inventor: Hans Pfab