With Adjustable, Replaceable Or Interchangeable Structural Features Patents (Class 335/132)
  • Patent number: 8305170
    Abstract: An embodiment of the present invention discloses an electromagnetic switching device including a housing including a mounting side and a connector side opposite the mounting side. The connector side includes one first and second main connection area for connecting first and second main lines to first and second fixed main contacts disposed in the interior of the housing. In the interior of the housing, movable main contact bridges are disposed via which one main current path each main current path includes one of the first fixed main contacts, one of the second fixed main contacts, and one of the main contact bridges. The main connection areas are located opposite one another. One first and one second central area are disposed between the main connection areas. The central areas each extend from the first to the second main connection area. The central areas are elevated relative to the main connection areas and disposed next to one another viewed from the first to the second main connection area.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: November 6, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Bardo Koppmann, Peter Schlegl, Norbert Zimmermann
  • Patent number: 8289110
    Abstract: In an electromagnetic switch device, a direction where a first plunger moves at the time a solenoid for pinion extrusion operates and a direction where a second plunger moves at the time a solenoid for motor energization operates are constituted in the same direction. A concave portion having a predetermined depth D is formed in a first fixed iron core used for the solenoid for pinion extrusion and a stopper member that controls a returning position of the second plunger is arranged therein. A part of the second plunger overlaps to the first fixed iron core in the axial direction.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: October 16, 2012
    Assignee: Denso Corporation
    Inventors: Masami Niimi, Yoshinori Yamaguchi, Kiyokazu Haruno
  • Patent number: 8289111
    Abstract: The electromagnetic contactor enables a reliable return to a pole open position without increasing the spring force of a return spring. In an electromagnetic contactor, an electromagnetic device having an exciting coil and a contact mechanism having a return spring are disposed in parallel, and the electromagnetic device and contact mechanism are linked by a drive lever. The electromagnetic device has a polarized electromagnet having a magnetic circuit that includes a permanent magnet generating a suction force that moves the contact mechanism to a pole open position side when the exciting coil is not energized. The drive lever is fixed to either one of the electromagnetic device or contact mechanism and contacts with the other with no gap at least when the contact mechanism is moved to the pole open position side. The return force of the contact mechanism is covered by the suction force of the permanent magnet.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: October 16, 2012
    Assignee: Fuji Electric Fa Components & Systems Co., Ltd.
    Inventors: Yasuhiro Naka, Toshikatsu Ohgami, Koji Okubo, Kouetsu Takaya, Kenji Suzuki
  • Patent number: 8279028
    Abstract: An electromagnetic relay including a body, a plurality of first surface-mount terminals projecting from the body, and at least one second terminal projecting from the body. Each first terminal includes a distal end portion adapted to be mounted on a surface of a circuit board. The second terminal includes a distal end portion adapted to be inserted into a through-hole of a circuit board. The distal end portion of the second terminal is positioned farther away from the body than the distal end portion of the first terminal.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: October 2, 2012
    Assignee: Fujitsu Component Limited
    Inventors: Kenichi Yokoyama, Shigemitsu Aoki
  • Patent number: 8274346
    Abstract: An electromagnetic contact device has a contactor holder (40), which moves a mounted movable contactor (42a) according to a displacement of a movable core (32) forming an electromagnet (30) for operation. The contactor holder (40) is being housed together with the electromagnet (30) for operation in a case (1). The case (1) has a lower case portion (10) housing the electromagnet (30) for operation and an upper case portion (20) engaging with the lower case portion (10) while being stacked on the lower case portion and houses the contactor holder (40) advanced from above. The upper case portion (20) has a recess (21) with an upward opening and houses the contactor holder (40) placed on the bottom wall of the recess (21). The lower case portion (10) houses one selected either a DC-only electromagnet (30b) or an AC-only electromagnet (30a).
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: September 25, 2012
    Assignee: Fuji Electric FA Components & Systems Co., Ltd.
    Inventors: Kouetsu Takaya, Koji Okubo, Yasuhiro Naka, Toshikatsu Ohgami, Kenji Suzuki
  • Patent number: 8269585
    Abstract: An electromagnetic switch includes: a stationary contact; a movable contact movably provided with respect to the stationary contact; a coil configured to move the movable contact to a side of the stationary contact by means of current conduction; and a shaft provided inside the coil such that the movable contact is provided at an end portion thereof, wherein a snap-fit portion having a pair of hooks disposed to face each other is provided at an end portion of the shaft, and the movable contact is fixed between the end portion of the shaft and the hook.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: September 18, 2012
    Assignee: LSIS Co., Ltd.
    Inventor: Yeon Soon Choi
  • Patent number: 8258901
    Abstract: An energy-saving electromagnetic switching device in the present invention includes a housing, and an electromagnetic assembly and a movable magnetic pole within the housing. The movable magnetic pole connects a resilience means which engages with the movable magnetic pole to control the electromagnetic switching device switched on and off. At least one locking assembly is set between the movable magnetic pole and the housing, via which the electromagnetic switching device can automatically and repeatably change from an on-state to an off-state if the electromagnetic assembly is momentarily energized. The electromagnetic switching device is energy-saved, has higher automatization degree, simple operation, and lower cost.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: September 4, 2012
    Inventor: Chungtai Hao
  • Patent number: 8237524
    Abstract: A first coil constitutes a first coil unit by placing an iron core plate between the first coil and an auxiliary yokes and engaging stopping parts provided in two holding members to an end surface in an axial direction of the auxiliary yoke. A second coil constitutes a second coil unit by forming magnetic path members by insertion to a resin member provided in a second bobbin unitarily, and fixing two terminals to the resin member. The first and the second coil units are united by connecting one terminal lead line of the first coil taken out from holding members to the first terminal, and connecting another terminal lead line to a surface of the magnetic path member.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: August 7, 2012
    Assignee: Denso Corporation
    Inventors: Masami Niimi, Kiyokazu Haruno, Tarou Okada, Hiroaki Higuchi
  • Patent number: 8222981
    Abstract: An electrical switching device includes first and second circuit assemblies. Each of the first and second circuit assemblies includes a base terminal and a moveable terminal movable between an open state and a closed state. The movable terminal is electrically connected to the base terminal in the closed state. An actuator assembly is electromechanically controlled by a motor. The actuator assembly includes a pivot member rotated by the motor that has a post extending outward from a pivot body. An actuator is moved by the pivot member and is movable between a first position and a second position. The actuator is operatively coupled to the moveable terminals of the first and second circuit assemblies. The actuator moves the movable terminals to the closed state as the actuator is moved from the first position to the second position. The actuator has a pocket with a compression spring received in the pocket. The compression spring extends between a first end and a second end. The first end engages the actuator.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: July 17, 2012
    Assignee: Tyco Electronics Corporation
    Inventors: Kurt Thomas Zarbock, Matthew Len Moeller, Garland H. Ladd, Jr.
  • 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: 8212638
    Abstract: An electrical contactor includes a moveable core member having a first moveable core surface and a second movable core surface. The second moveable core surface is angled relative to the first moveable core surface. A stationary core member is mounted relative to the moveable core member. The stationary core member includes a pole arm having a first stationary core surface and a second stationary core surface. The second stationary core surface is angled relative to the first stationary core surface. In response to a magnetic field traversing a path defined by the stationary core member and the moveable core member, the first stationary core surface is magnetically biased to mate with the first moveable core surface and the second stationary core surface is magnetically biased to mate with the second moveable core surface to bring into contact an electrical contact member and an electrical contact element.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: July 3, 2012
    Assignee: General Electric Company
    Inventors: Kamal Pandey, Avijit Saha, Kalyana Sundaram, Subramanion Nagarajan
  • Publication number: 20120133460
    Abstract: Two electromagnetic contact devices 1a, 1b are arranged adjacently, a reversible unit 2 is detachably mounted on these electromagnetic contact devices, and two auxiliary contact point units 4a, 4b are detachably mounted on the reversible unit. In addition, two surge absorption units 3a, 3b are detachably mounted on the electromagnetic contact devices.
    Type: Application
    Filed: June 14, 2010
    Publication date: May 31, 2012
    Applicant: Fuji Electric FA components & Systems Co., Ltd.
    Inventors: Koji Okubo, Kouetsu Takaya, Yasuhiro Naka, Toshikatsu Ohgami
  • Patent number: 8188819
    Abstract: A switching device unit is disclosed for switching at least two operating states of at least one consumer to an at least two-phase electrical supply system by way of switching elements. At least one embodiment of the invention specifies a switching device unit which has as simple a construction as possible and is as cost-effective and compact as possible. For this purpose, the switching device unit contains circuits for operational switching of the consumer, for implementing the tripping function for protection against overload and short circuits, wherein these circuits are integrated in such a way that the switching device unit, in particular in terms of its function as a compact reversing starter, can have a standardized width in order to be installed in a space-saving manner on a top-hat rail in a switchgear cabinet and in order to be operated.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: May 29, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Josef Graf, Ludwig Niebler, Norbert Zimmermann
  • Patent number: 8179217
    Abstract: A polar electromagnet device has a drive shaft comprising an axis center supported so as to reciprocate in an axis center direction at a center hole of a spool wound with a coil, and a movable iron core attached to a lower end of the drive shaft on the axis center. The drive shaft is reciprocated with the movable iron core which reciprocates based on excitation and demagnetization of the coil. A permanent magnet is integrally arranged at the movable iron core on the same axis center.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: May 15, 2012
    Assignee: OMRON Corporation
    Inventors: Kensuke Kawaguchi, Kazuchika Hiroki
  • Patent number: 8169281
    Abstract: The starter has a system of pushing the pinion gear in the direction of the anti-motor side by using the attracting power of the electromagnetic switch via the shift lever. The switch coil of the electromagnetic switch is constituted of one coil that is electrically separated from the motor circuit. The mass of pinion gear is set to 100 g or less, the switch extrusion power stored in the drive spring is set to 70 N (Newton) or less, and the operation current of the electromagnetic switch is set to 12 amperes or less. With this starter, since the switch coil and the motor circuit can be electrically separated, the terminal for connection for connecting the conventional attracting coil and conventional “M terminal bolt” can be abolished. Further, by setting the operation current of the electromagnetic switch 10 to 12 amperes or less, it is possible to control the operation current directly by the ECU.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: May 1, 2012
    Assignee: Denso Corporation
    Inventor: Kazuhiro Andoh
  • Patent number: 8159321
    Abstract: In one embodiment of the present invention, a production method for an electromagnetic switching device includes the following steps in the sequence listed: producing a one-piece switching chamber, producing a contact bridge carrier and equipping the contact bridge carrier with movable contact bridges, wherein the contact bridges include a plurality of primary contact bridges and at least one auxiliary contact bridge; inserting the contact bridge carrier equipped with the movable contact bridges into the switching chamber; inserting partition elements into the switching chamber so that each partition element is arranged between a bridge contact point of one of the primary contact bridges and a bridge contact point of one of the auxiliary contact bridges, and equipping the switching chamber with fixed primary counter-contact points; fixing primary covers to the switching chamber so that the primary covers cover the primary counter-contact points and fix the partition elements in the switching chamber.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: April 17, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Georg Bollinger, Johann Drexler, Alexander Keintzel, Peter Schlegl
  • Patent number: 8143979
    Abstract: Terminal-bolts and a fixed contact are formed with different kinds of metals, and fixed to a fixing hole formed in the fixed contact by press fitting one end of the terminal-bolts. A plurality of concavo-convex parts is provided on a surface of the fixed contact that faces the movable contact. A plurality of concavo-convex portions is provided on another surface of the fixed contact that faces an anti movable-contact side. The concavo-convex portions are arranged so that positions of concave parts of the concavo-convex portions match positions of convex parts of the concavo-convex portions provided in the opposite surface of the fixed contact. The concavo-convex parts are at least partly curved, and have the same height and project in a height direction from the fixed contact.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: March 27, 2012
    Assignee: Denso Corporation
    Inventors: Shinji Usami, Masami Niimi, Mitsuhiro Murata, Mikio Saitoh
  • Patent number: 8138440
    Abstract: A fast acting switching mechanism for a circuit breaker includes a drive rod articulated to a drive module and supporting at an end thereof a contact bridge having at opposite ends thereof respective moveable contacts for switchably engaging a pair of fixed contacts of the circuit breaker. A contact spring unit is operatively coupled to the drive module for applying closing pressure in the order of 200 Kg; and a latch latches the drive rod in an open or closed position after operation of the circuit breaker and prevents rebounds. The contact bridge includes a pair of side conductors supporting on upper edges thereof an armature having an exposed upper surface that supports the moveable contacts at opposite ends of the armature; and a reinforcing element inserted between the side conductors.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: March 20, 2012
    Assignee: Arcoline Ltd.
    Inventors: Yuriy Onufriyenko, Eduard Ulanovsky, Dov Yeger, Yefim Gofman
  • Patent number: 8138862
    Abstract: An installation switching device having at least one pole current path comprises two stationary contact pieces; a moving contact bridge including two moving contact pieces forming a double-break pole with the two stationary contact pieces; a contact pressure spring exerting a pressure on the moving contact bridge in a closing direction of the moving contact bridge; a pusher configured to act on the moving contact bridge counter to the pressure of the contact pressure spring in an opening direction, the pusher including a slide and a striking pin disposed moveably relative to the moving contact bridge and to one another in a movement direction of the moving contact bridge; a switch latch having a latching point; an operating lever configured to act on the pusher; and an electromagnetic release having an impact armature.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: March 20, 2012
    Assignee: ABB AG
    Inventors: Ralf Mueller, Frank Hustert, Hans-Peter Weyand
  • Patent number: 8138872
    Abstract: A contact device has a first yoke having a substantially U-shape, a second yoke bridged over both ends of the first yoke, a spool wound with a coil disposed between the first yoke and the second yoke, a movable iron core inserted into a center hole of the spool in a reciprocating mariner, and a contact mechanism unit formed above the second yoke driven with a drive shaft having a lower end fixed to the movable iron core, which reciprocates based on excitation and demagnetization of the coil, and an upper end projecting out from an upper surface of the second yoke. An insertion hole communicating to the center hole of the spool and through which the movable iron core reciprocates is formed in the first yoke. An annular auxiliary yoke including an insertion hole communicating to the insertion hole of the first yoke and through which the movable iron core reciprocates is provided at a lower surface of the first yoke.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: March 20, 2012
    Assignee: OMRON Corporation
    Inventors: Ikuhiro Yoshihara, Kazuchika Hiroki
  • Patent number: 8115578
    Abstract: An electromechanical relay includes a case and a relay module, in which the case has terminals to enable a connection into the circuit to be protected and connectors which cooperate with complementary connectors on the relay module to enable the relay to readily be connected to the external circuit. The relay also has an arrangement in which the fixed contacts are directly associated with the connectors on the module and the movable contacts are associated therewith, and can be provided as either normally open or normally closed contacts.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: February 14, 2012
    Inventor: Alan R Fancke
  • Publication number: 20120013424
    Abstract: A vehicle power system includes an electrical power source, an electrical bus, and a contactor electrically connected with the electrical power source and electrical bus. The contactor includes first and second poles, dual plungers each operatively associated with one of the first and second poles, and an electromagnetic coil configured to cause at least one of the dual plungers to move if the coil is energized.
    Type: Application
    Filed: September 28, 2011
    Publication date: January 19, 2012
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Philip Michael Gonzales, Benjamin A. Tabatowski-Bush
  • Patent number: 8093973
    Abstract: A movable contact holder includes a movable contact holder base and a movable contact holder cover. One side of the movable contact holder base is opened to have a plurality of recesses each being formed for holding a contact pair, each contact pair include a bridge contact assembly and a contact spring inserted therein while being isolated from the other pairs. The other side of the movable contact holder base is formed as a bottom wall, and preferably includes openings through which an assembly jig can be inserted from outside the moveable contact holder. Alternatively, jig openings can be formed in lateral side walls of the recesses to allow the assembly jig to be inserted. The movable contact holder cover covers the movable contact holder base and is coupled thereto.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: January 10, 2012
    Assignee: Fuji Electric Components and Systems Co., Ltd.
    Inventors: Kouetsu Takaya, Koji Ohkubo, Yasuhiro Naka, Toshikatsu Ohgami, Kenji Suzuki
  • Patent number: 8058574
    Abstract: An auxiliary contact block is disclosed for expanding a switching device and to a switching device having at least one auxiliary contact block. A compact auxiliary contact block, i.e. a block requiring little wiring and space, for a switching device is disclosed, and a switching device having at least one auxiliary contact block. In at least one embodiment of the auxiliary contact block, the auxiliary contact block includes auxiliary contacts disposed in a plane, the contacts having contact bridges and associated fixed contact pieces, and at least one contact slider, which can be equipped with at least one auxiliary contact pair. The configuration of the auxiliary contacts in a plane as described herein allows a very small installation size and very little wiring complexity of the auxiliary contacts in a simple manner. The actuating unit can, for example, be configured as a slider that couples the contact slider and the switching device with each other.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: November 15, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventors: Josef Graf, Ludwig Niebler, Johannes Voit
  • Patent number: 8054612
    Abstract: A plug-in unit includes a breaker electrically connected with a busbar at a power supply side and an electric device electrically connected with the breaker. Joint surfaces making contact with each other are formed at the breaker and the electric device, respectively. The breaker includes a terminal metal fitting connecting the busbar thereto and a plug-in terminal metal fitting installed at the joint surface of the breaker, and the electric device includes a plug terminal, which is installed at the joint surface thereof and capable of being connected with the plug-in terminal metal fitting. The breaker is detachably joined with the electric device by an engaging member including an engaging unit and an engagement receiving unit. The engaging unit and the engagement receiving unit are installed at the joint surfaces of the breaker and the electric device, respectively, and detachably engaged with each other.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: November 8, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Kenji Ichinomiya, Toshiyuki Kawano, Takami Satoh
  • Patent number: 8040211
    Abstract: In a coil unit of an electromagnetic contactor in which a coil having a coil strand wound around a flanged bobbin is mounted on a leg of a stationary core of an operating electromagnet, into one flange of the bobbin are press fitted a pair of terminal metal pieces respectively corresponding to an initial side and final side lead wires of the coil, and each of the terminal metal pieces is formed with a press fitting base making the terminal metal piece press fitted into the one flange, a coil connecting arm around which the lead wire of corresponding side of the coil is wound and a tab terminal made to have a plug-in connection with a connector of an extension lead.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: October 18, 2011
    Assignee: Fuji Electric FA Components and Systems Co., Ltd.
    Inventor: Hideki Daijima
  • Patent number: 8035044
    Abstract: An electrical switching device comprises a contact point having two double-break contacts, a contact link having a width, a contact pressure spring exerting a pressure on the contact link, a striker pin configured to act on the contact link counter to the pressure of the contact pressure spring during a switch-off operation so as to move the contact link into an open position, and a thruster actuatable by a switching mechanism and configured to guide the striker pin, the thruster having two limbs projecting in the same direction towards a free end of the thruster so as to form a slot there between, wherein a distance between the two limbs tapers towards the free end such that the distance at the free end is smaller than the width of the contact link, so that the contact link is clamped between the two limbs during the switch-off operation.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: October 11, 2011
    Assignee: ABB AG
    Inventors: Frank Hustert, Ralph Burkhardt
  • Patent number: 7990240
    Abstract: A relay assembly is provided that includes an intermediate member to aid in coupling a wire to a housing.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: August 2, 2011
    Assignee: Tyco Electronics Corporation
    Inventors: Bernard Victor Bush, Jeremiah Garcia Reyes
  • Patent number: 7990239
    Abstract: At least one electrical contactor is provided that includes a fixed contact and a movable contact. The fixed contact includes a center leg and first and second arms that extend in opposite directions from the center leg. The movable contact associated with each fixed contact includes first and second blades positioned on opposite sides of the center leg. The first and second blades extend parallel to the center leg of the fixed contact such that when current flows through the electrical contactor, the current flow creates a force to push the first and second blades into the first and second arms of the fixed contact. The electrical contactor includes an actuating arrangement having a pair of cam members. The movement of the cam members causes pegs on each of the first and second blades to travel within the cam channel, thus opening and closing the contactor arrangement.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: August 2, 2011
    Assignee: M&FC Holding, LLC
    Inventors: Michael R. Brown, William R. Mazza, Jr., Oliver Burstall, Alan Syrop
  • Patent number: 7978036
    Abstract: A method and a device are disclosed for the secure operation of a switching device including at least one main contact which can be switched on and off and which includes contact pieces and a displaceable contact bridge, and at least one control magnet which includes a displaceable anchor. The anchor and the contact bridge are actively connected to each other such that the corresponding main contact can be opened or closed when switched on and off. In at least one embodiment, the method includes the following: a) the path difference, which returns the anchor after switching on and off, is recognised, b) devices which are used to open welded main contacts are released by a release device when the recognised path difference exceeds a predetermined value and a specific time duration of time has run out after switching off.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: July 12, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventors: Robert Adunka, Peter Hartinger, Bardo Koppmann, Norbert Mitlmeier, Ludwig Niebler, Fritz Pohl, Alf Wabner, Norbert Zimmermann
  • Patent number: 7973623
    Abstract: The starter has a system of pushing the pinion gear in the direction of the anti-motor side by using the attracting power of the electromagnetic switch via the shift lever. The switch coil of the electromagnetic switch is constituted of one coil that is electrically separated from the motor circuit. The mass of pinion gear is set to 100 g or less, the switch extrusion power stored in the drive spring is set to 70N (Newton) or less, and the operation current of the electromagnetic switch is set to 12 amperes or less. With this starter, since the switch coil and the motor circuit can be electrically separated, the terminal for connection for connecting the conventional attracting coil and conventional “M terminal bolt” can be abolished. Further, by setting the operation current of the electromagnetic switch 10 to 12 amperes or less, it is possible to control the operation current directly by the ECU.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: July 5, 2011
    Assignee: Denso Corporation
    Inventor: Kazuhiro Andoh
  • Patent number: 7973625
    Abstract: The present invention relates to an auxiliary contact block. The auxiliary contact block comprises a housing and a tool free latching mechanism. The tool free latching mechanism further comprising a stationary member integral to the housing and a latching bar. The latching bar comprising a button in communication with a moveable member by a central body.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: July 5, 2011
    Assignee: General Electric Company
    Inventors: Namitha Chandrappa, Subramanyan Ananthakrishnan, G. Kalyana Sundaram, Pedro Jose Riera
  • Patent number: 7961480
    Abstract: The present invention relates to a device for housing and connection of accessories, particularly for low-voltage automatic switches, comprising an integrated wiring support. In particular, the housing and connection device (1) has a shaped structure (10) comprising an integrated wiring bus for electrical connection of the accessories. The shaped structure (10) moreover comprises one or more seats (20, 21, 22, 23, 24) for housing the accessories.
    Type: Grant
    Filed: May 3, 2006
    Date of Patent: June 14, 2011
    Assignee: ABB S.p.A.
    Inventors: Stefano Besana, Antonello Antoniazzi
  • Patent number: 7948339
    Abstract: An electromechanical switching device, especially a contactor or a multifunctional device including a contactor, includes at least one stationary contact piece, at least one movable contact piece movable to and from the at least one stationary contact piece for opening or closing a current path and an electromagnetic drive unit including a yoke and a coil and a movable armature. In at least one embodiment, the electromagnetic drive unit is adapted to displace the movable contact piece in response to a voltage applied to the coil. The at least one movable contact piece and the at least one stationary contact piece are adapted to limit movement of the armature after activation of the electromagnetic drive unit.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: May 24, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventors: Josef Burger, Reinhard Maier, Bernd Trautmann
  • Patent number: 7923650
    Abstract: A ganged auxiliary switch for a circuit breaker comprises at least two auxiliary switches attached to each other in a side-by-side relationship so that they may be inserted into said circuit breaker as a single unit.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: April 12, 2011
    Assignee: General Electric Company
    Inventors: Randall Lee Greenberg, Girish Mruthunjaya Hassan, Roger Neil Castonguay, Dave Scot Christensen
  • Patent number: 7924123
    Abstract: An electromagnetic relay has a solenoid formed from a wound coil, a movable contact-point block having a movable iron core, an insulation holder integrated with the upper end portion of the movable iron core and a movable contact piece which is biased toward and supported by the insulation holder through a contact pressing spring, and a fixed iron core fitted in a through hole in a yoke. A restoring spring is inserted into an axial hole of the solenoid. The movable iron core of the movable contact-point block is slidably inserted into the axial hole of the solenoid from thereabove. The fixed iron core is inserted into the axial hole from therebelow. The movable iron core is adapted to be slid into the axial hole based on the magnetization force and the demagnetization of the coil to move the movable contact-point block back and forth.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: April 12, 2011
    Assignee: OMRON Corporation
    Inventors: Keisuke Yano, Masayuki Noda, Hiroshi Ono, Hiroyuki Fujita
  • Patent number: 7911304
    Abstract: An electromagnetic relay has a movable iron core, an insulation holder integrated with an upper end portion of the movable iron core, a movable contact piece supported by the insulation holder, and a solenoid formed from a wound coil. The movable iron core is housed in an axial hole in the solenoid movably in the upward and downward directions. The movable iron core is adapted to be moved upwardly and downwardly based on magnetization and demagnetization of the solenoid for contacting and separating a movable contact point provided on the movable contact piece with and from a fixed contact point for opening and closing a contact point. A permanent magnet is embedded in a base portion of the insulation holder.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: March 22, 2011
    Assignee: OMRON Corporation
    Inventors: Keisuke Yano, Masayuki Noda, Hiroshi Ono, Hiroyuki Fujita
  • Patent number: 7911301
    Abstract: An electromagnetic relay has a solenoid formed from a wound coil, a movable iron core that is reciprocated upwardly and downwardly in an axial hole of the solenoid, and a movable contact point that reciprocates together with the movable iron core. The movable contact point is contacted and separated with and from a fixed contact point for opening and closing a contact point. An arc generated at a time of opening and closing of the contact point is flowed, in a predetermined direction, by the magnetic field of at least a single permanent magnet placed at a side of the fixed contact point and the movable contact point that are contacted and separated with and from each other. Coil terminals are connected to leader lines of the coil, at least at a single side of the flow of the arc.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: March 22, 2011
    Assignee: OMRON Corporation
    Inventors: Keisuke Yano, Masayuki Noda, Hiroshi Ono, Hiroyuki Fujita
  • Patent number: 7902947
    Abstract: Electromagnetic contactor comprising a winding (6) for generating a magnetic field, a magnetic circuit comprising a stationary portion (7) and a mobile portion (8), and an electronic board (11) comprising means of controlling the power supply to the winding (6), the electronic board (11) being arranged horizontally above the stationary portion (7) of the magnetic circuit. The mobile portion (8) passes through the electronic board (11) via an opening (12) in the board and slides into the winding, the contactor comprising an insulating casing including a rear portion intended to be fastened onto a support.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: March 8, 2011
    Assignee: ABB France
    Inventor: Bruno Lefebvre
  • Patent number: 7889033
    Abstract: An electromagnetic switching device for controlling a branch includes, in at least one embodiment, a housing with a length in a longitudinal direction, with a first end side, which is oriented at right angles with respect to the longitudinal direction, and with a second end side, which is opposite the first end side and is oriented at right angles with respect to the longitudinal direction; a control coil, which is arranged in the housing, for actuating an electrical switch with a first and second coil contact; and a first and second connection element, which are arranged partially in the housing.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: February 15, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventors: Georg Bollinger, Johann Drexler
  • Patent number: 7872552
    Abstract: A method and a device for the secure operation of a switching device are disclosed, including at least one main contact which can be switched on and off and which includes contact pieces and a displaceable contact bridge, and also at least one control magnet which includes a displaceable anchor. The anchor acts upon the contact bridge when it is switched on or off such that the corresponding main contact is opened and closed. In at least one embodiment, the method includes: a) the displaceable contact bridge of the at least one main contact recognizes when an opening point has been exceeded after being switched off, and b) the additional operation of the switching device is interrupted, according to a predetermined duration of time, when the opening point is not exceeded.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: January 18, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventors: Robert Adunka, Peter Hartinger, Bardo Koppmann, Norbert Mitlmeier, Ludwig Niebler, Fritz Pohl, Alf Wabner, Norbert Zimmermann
  • Patent number: 7868262
    Abstract: An auxiliary switch tray is provided for an electrical switching apparatus, such as a circuit breaker. The circuit breaker includes a housing, an actuating mechanism, and a plurality of auxiliary switches. The housing has a mounting mechanism. The auxiliary switch tray includes a module having first and second sides, and a plurality of mounts disposed on the first side. At least a plurality of the mounts is structured to receive a corresponding one of the auxiliary switches. A base is disposed on the second side of the module and is coupled to the mounting mechanism in order to install the auxiliary switches in a predetermined position with respect to the actuating mechanism of the circuit breaker. The module, the mounts, and the base comprise one single-piece molded member. At least a plurality of the mounts are molded compartments of the single-piece molded member.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: January 11, 2011
    Assignee: Eaton Corporation
    Inventors: Thomas A. Whitaker, Erik R. Bogdon, Glen C. Sisson, Ronald W. Brand, James M. Smeltzer, Robert S. Estok, Craig A. Rodgers
  • Patent number: 7843291
    Abstract: An apparatus for indicating a condition of a molded case circuit breaker, with the circuit breaker defining an accessory pocket in communication with an operating mechanism and a trip unit of the circuit breaker, including a mount member operatively coupled to one of the operating mechanism and trip unit in the accessory pocket. A housing coupled to the mount member, with the housing defining a compartment. A magnetic latch device disposed in the compartment and operatively coupled to the mount member. A switch disposed in the compartment and operatively coupled to the mount member. Wherein a condition of the circuit breaker is indicated by a condition of one of the switch and magnetic latch, and the condition of the circuit breaker is operatively transmitted via the apparatus to a remote location.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: November 30, 2010
    Assignee: Siemens Industry, Inc.
    Inventor: Solomon R. Titus
  • Patent number: 7821364
    Abstract: A connecting system includes an electromagnetic switchgear, especially contactor, and a connector. In at least one embodiment, the system makes it easier to connect auxiliary and control lines. For this purpose, the connecting system, in at least one embodiment, includes at least one electromagnetic switchgear, especially a contactor. The switchgear includes a plurality of auxiliary contact connections and a coil connection terminal block. The coil connection terminal block is configured in such a manner that the coil connections lie in a plane with at least one auxiliary contact connection. The connecting system also includes, in at least one embodiment, a connector for simultaneously contacting the coil and auxiliary contact connections of one or more switchgears which connections lie in one plane. The connector has an internal wiring for electrically interconnecting the coil and/or auxiliary contact connections.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: October 26, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventors: Josef Birzer, Johann Drexler, Peter Hartinger
  • Patent number: 7812696
    Abstract: A method and a device for secure operation of a switching device including at least two main contacts which can be switched on and off and include contact pieces and a displaceable contact bridge, and a control magnet having a displaceable anchor. The method may include producing an electric control signal to release a contact breaking device when the control magnets are switched on and off. The emitted control signal lies outside the ON state of the switching contact during the regular operation of the switching device and releasing the contact breaking device in defective operation of the switching device if the switching contact remains in the ON state when the control magnets are switched on or off. The switching contact may connect through the control signal to release the contact breaking device.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: October 12, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventors: Peter Hartinger, Ludwig Niebler, Fritz Pohl, Norbert Zimmermann
  • Patent number: 7760055
    Abstract: A method and a device are disclosed for the secure operation of a switching device including at least two main contacts which can be switched on and off and which includes respectively, contact pieces and a displaceable contact bridge, and at least one control magnet which includes a displaceable anchor. The anchor acts upon the contact bridge when it is switched on and off such that the corresponding main contact is opened or closed. At least one embodiment of the inventive method includes the following steps: a) release device for a force element remains in a first state in order to interrupt the main contact as long as the main contacts are closed when switched on and open when switched off, and b) the release device are transferred into a second state if at least the main contact is welded after switching off.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: July 20, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventors: Robert Adunka, Peter Hartinger, Bardo Koppmann, Norbert Mitlmeier, Ludwig Niebler, Fritz Pohl, Alf Wabner, Norbert Zimmermann
  • Patent number: 7733203
    Abstract: An auxiliary contact unit for a magnetic contactor is disclosed, wherein the auxiliary contact unit is disposed at an inner lower frame thereof with a cover connected to lower hooks and supporting an upper structure, and the cover is supported at a lower surface thereof by a protrusion.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: June 8, 2010
    Assignee: LS Industrial Systems Co., Ltd.
    Inventor: Jun Ho Kim
  • Publication number: 20100134224
    Abstract: The present invention relates to an electromagnetic contactor having an abrasion preventing means, and there is provided an electromagnetic contactor including an upper frame having a fixed contact point and a guide rail; a cross bar comprising a sliding portion sliding on the guide rail, a movable contact point contacting and separating with respect to the fixed contact point while sliding along the guide rail, and a movable core; and a lower frame comprising a fixed core disposed adjacent to the movable core, an excitation coil magnetizing the fixed core by an electromotive force, and a return spring exerting an elastic force to the cross bar, wherein the sliding portion is configured separately from the cross bar, and a material forming the sliding portion has a friction coefficient against the guide rail less than that of the cross bar.
    Type: Application
    Filed: November 24, 2009
    Publication date: June 3, 2010
    Applicant: LS INDUSTRIAL SYSTEMS CO., LTD.
    Inventor: Gwan Ho CHOI
  • Patent number: 7679477
    Abstract: A contactor with modular connection of the coil according to the invention comprises an insulating body, an operating coil housed in the insulating body, and means of modular connection of the coil to an external circuit so that the coil can be powered. The coil connection means comprise a connection arrangement, internal to the body, comprising at least two pairs of contact pieces positioned near at least two faces of the insulating body, these two faces being chosen from the front face and two opposed side faces running transversely between the front face and the rear face, each contact piece facing an opening in the body, and at least one removable connection module comprising a pair of connection terminals, which is connected to a second pair of contacts which are intended to collaborate with a first pair of contact pieces of the internal connection arrangement.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: March 16, 2010
    Assignee: ABB France
    Inventor: Alain Portier
  • Patent number: 7659801
    Abstract: A starter includes a starter motor, a main circuit section, a main switch section including a main contact section to cut a current, a main plunger driven to open and close the main contact section, suction and holding coils, battery and motor terminals, and a switch terminal connected to the battery through a start switch, and opening and closing the main contact section in accordance with movement of the main plunger, a suction circuit section connected in parallel with the main circuit section and connected in series with the suction coil, a holding circuit section connected in series with the holding coil, and a breaking section connected in series with the suction coil inside the suction circuit section. The breaking section cuts electricity conduction when electricity is continuously conducted to the suction coil to bring about layer short circuit and a short circuit current flows at the suction circuit section.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: February 9, 2010
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Keiichi Kusumoto, Hayato Yamauchi, Motoaki Kimura