Pole Structure Patents (Class 335/85)
  • Publication number: 20150048909
    Abstract: A polarized relay comprising an electromagnet, a two-pole or three-pole permanent magnet, an armature, and switches, which are mounted in and on a shelf-like support component. The support component accommodates magnetic flux pieces and the permanent magnet in an upper cavity, and the permanent magnet is magnetized while the electromagnet is still outside the support component. Subsequently, the electromagnet is inserted into lower cavity of the support component and the rest of the components of the relay are mounted.
    Type: Application
    Filed: March 27, 2013
    Publication date: February 19, 2015
    Inventors: Jens Heinrich, Christian Mueller, Ralf Hoffmann
  • 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: 8274344
    Abstract: An electromagnet for use in a relay having a coil bobbin with flange portions at both ends of a coil winding portion where a coil is wound and an iron core with a flange-like head portion at one end of a body portion, the coil bobbin being so fitted onto the iron core that the flange-like head portion and the other end of the body portion of the iron core respectively project out of each of openings formed at the flange portions of the coil bobbin. The iron core has at the other end an engageable portion to be engaged with an engaging portion formed on a grasping part of a coil winding chuck device. The electromagnet further has between the coil bobbin and the iron core a means for preventing misregistration of the coil bobbin fitted onto the iron core.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: September 25, 2012
    Assignee: Panasonic Electric Works Co., Ltd.
    Inventor: Yoshimasa Kato
  • Patent number: 8228143
    Abstract: An assembly including an electromagnetic relay and a circuit board. The electromagnetic relay includes a body having a lateral surface and a bottom surface, and a plurality of terminals protruding outward from the lateral surface of the body. The terminals respectively have distal portions extending beyond the bottom surface of the body. The circuit board is provided with a relay-mount surface. The electromagnetic relay is mounted on the relay-mount surface in an orientation such that the bottom surface of the body is opposed to the relay-mount surface, and the distal portions of the terminals being fixed to the circuit board. Each terminal is formed from a flat plate element and has a shape angled in a width direction of the flat plate element. The body has a height defined in a direction orthogonal to the relay-mount surface of the circuit board and corresponding to a length of a shortest edge of the lateral surface, the shortest edge being shorter than any of edges of the bottom surface.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: July 24, 2012
    Assignee: Fujitsu Component Limited
    Inventor: Satoshi Takano
  • 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: 8174343
    Abstract: A relay comprises a movable body placed in a cavity which is formed on a substrate and surrounded by a spacer layer and sealed by a cover layer. The movable body comprises a first magnet which is permanently magnetized and has at least a first end. A nearby switching electromagnet, when energized, produces a switching magnetic field which is primarily perpendicular to the magnetization direction of the first magnet and exerts a magnetic torque on the first magnet to force the first magnet and said movable body to rotate and close an electrical conduction path at the first end. Changing the direction of the electrical current in the switching electromagnet changes the direction of the switching magnetic field and thus the direction of the magnetic torque on the first magnet, and causes the first magnet and said movable body to rotate in an opposite direction and opens the electrical conduction path at the first end.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: May 8, 2012
    Assignee: Magvention (Suzhou) Ltd.
    Inventor: Jun Shen
  • Patent number: 7679476
    Abstract: A polarized electromagnetic relay including an electromagnet assembly, a contact section insulated from the electromagnet assembly, and a force transfer member disposed between the electromagnetic assembly and the contact section. The electromagnet assembly includes an electromagnet, an armature driven by the electromagnet, and a permanent magnet carried on the armature. The armature includes first and second electrically conductive plate elements holding the permanent magnet therebetween in a direction of magnetization of the permanent magnet and disposed to orient the direction of magnetization in parallel with the center axis of the coil. The armature is arranged linearly movably in a direction parallel with the center axis in a state where a part of the first electrically conductive plate element is inserted into a space between the outer peripheral region of the iron core head portion and the distal end region of the yoke major portion.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: March 16, 2010
    Assignee: Fujitsu Componenet Limited
    Inventors: Kazuo Kubono, Shinichi Sato
  • Patent number: 7646271
    Abstract: A circuit breaker includes an enclosure with a first side and a second side opposite and distal from the first side. A number of separable contacts are enclosed by the enclosure. An operating mechanism is structured to open and close the separable contacts. A plurality of terminals are electrically interconnected with the number of separable contacts. The terminals protrude through the second side of the enclosure. A number of phase barrier apparatus is disposed on the second side of the enclosure. Each of the number of phase barrier apparatus includes a plurality of separate phase barrier members, each of which is disposed about a corresponding one of the terminals, and a number of interlocking members. Each of the number of interlocking members interlocks with an adjacent pair of the separate phase barrier members.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: January 12, 2010
    Assignee: Eaton Corporation
    Inventors: Andrew L. Gottschalk, Frankie K. Ostrowski, Kelly J. McCarthy, Paul R. Rakus
  • Patent number: 7633363
    Abstract: A forcibly guided relay is disclosed, with a housing, whose height is smaller than its width and whose width is smaller than its length. With this, the relay comprises an electromagnetic drive filling the length or the width of the relay, with a clapper-type contactor which comprises a drive arm which extends in the direction of the core and at its free end cooperates with a drive cam; several contact pairs, which are in each case formed by a contact spring and a fixed or spring-like counter-contact said contact springs extending in the direction of the core, and with the drive ends being in a forcibly guided engagement with the drive cam.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: December 15, 2009
    Assignee: Elesta Relays GmbH
    Inventor: Werner Fausch
  • Patent number: 7541899
    Abstract: Disclosed are a multi-pole circuit breaker and an apparatus for preventing deformation of a driving shaft thereof. The multi-pole circuit breaker includes: a plurality of single pole breaking units having a pair of fixed contactors, a movable contactor, and shafts; a switching mechanism disposed on a certain one of the plurality of single pole breaking units; a pair of driving shafts connected to each shaft; and a driving shaft deformation prevention unit disposed between the single pole breaking unit, spaced relatively far from the switching unit among the plurality of single pole breaking units, and the adjacent single pole breaking unit.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: June 2, 2009
    Assignee: LS Industrial Systems Co., Ltd.
    Inventor: Byoung-Soo Ahn
  • Patent number: 7538644
    Abstract: Disclosed is a multi-pole circuit breaker. The multi-pole circuit breaker includes: a substrate disposed between the single pole breaking unit, spaced relatively far from the switching mechanism as compared to the other single pole breaking units among the plurality of single breaking units, and the adjacent single pole breaking unit; a link mechanism rotatably supported on the substrate; and springs having one ends supported by the substrate and the other ends supported by the link mechanism.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: May 26, 2009
    Assignee: LS Industrial Systems Co., Ltd.
    Inventor: Ki-Hwan Oh
  • Patent number: 7495535
    Abstract: A magnet system for a bi-stable relay includes a coil, first and second core yoke members, and an armature. The coil has a first polarity state and a second polarity state. Each of the first and second core yoke members has a core arm and a yoke arm. Each of the yoke arms of the first and second core yoke members has a pole face. The armature has substantially parallel armature core arms separated by a permanent magnet. The armature is pivotally mounted in an air gap between the pole faces of the yoke arms of the first and second core yoke members such that the armature core arms contact the yoke arms in a first switch position corresponding to the first polarity state and in a second switch position corresponding to the second polarity state. The armature core arms are arranged substantially perpendicular to a center axis of the coil.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: February 24, 2009
    Assignee: Tyco Electronics Austria GmbH
    Inventor: Rudolf Mikl
  • Publication number: 20080238589
    Abstract: Methods and apparatus to improve air cap design for controlling spray flux are described. In one embodiment, a plurality of opposing gas inlets are provided in an air cap, e.g., to reduce or eliminate potential opposing turbulence inside the air cap. Other embodiments are also described.
    Type: Application
    Filed: March 29, 2007
    Publication date: October 2, 2008
    Inventors: Nhan Toan Quan, Harikrishnan Ramanan
  • Patent number: 7330091
    Abstract: An electronic type protective relay integrates the mechanical structure into a single operation rod to protect electric machinery. The electronic type protective relay includes an insulating shell, a tripping rod, a magnetic-force device and an operation device. The tripping rod is pivoted in the inner part of the insulating shell and conducts two pairs of connection pins. The tripping rod includes a control magnetic core. The magnetic-force device includes a tripping electromagnet, a reset electromagnet, and a permanent magnet installed between the tripping electromagnet and the reset electromagnet. The operation device includes an auxiliary rod located on one side of the tripping rod, an operation rod installed between the tripping rod and the auxiliary rod and protruding beyond the insulating shell. The operation rod can be located at four locations and in cooperation with the auxiliary rod to stop or reset.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: February 12, 2008
    Assignee: Teco Electric & Machinery Co., Ltd.
    Inventors: Seng-Wen Peng, Fong-Jhou Chen
  • Patent number: 7315229
    Abstract: Provided is an electromagnetic relay which does not require a braided wire for securing a current capacity of a main contact unit. The electromagnetic relay includes a main contact unit inserted into a power supply path to a load and an arc contact unit connected in parallel to the main contact unit. An auxiliary contact unit is electrically independent of the main contact unit and the arc contact unit. The main contact unit includes a main fixed contact fixed to a frame body and a main contact spring made of a leaf spring and fitted with a main mobile contact which is attached to and detached from the main fixed contact. The arc contact unit and the auxiliary contact unit are arranged adjacent to each other. The main contact spring extends in a direction in which the arc contact unit and the auxiliary contact unit are arranged.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: January 1, 2008
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Tomoaki Sasaki, Naoki Kanemoto, Takafumi Imai
  • Patent number: 7157994
    Abstract: For manufacturing a thin electromagnetic relay having desired attractive force, both arms as upstanding portions disposed at both ends of a barrel of a plate magnetic material which is punched to be substantially U-shaped as viewed from the front by press working are bended to form magnetic poles having magnetic-pole surfaces extending in a horizontal direction. A vertical face passing through the center of the barrel crosses the centers of the magnetic-pole surfaces at right angles. The width of the barrel is smaller than the height of the barrel.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: January 2, 2007
    Assignee: Omron Corporation
    Inventors: Ryota Minowa, Keisuke Yano, Takeshi Nishiyama, Hironori Sanada
  • Patent number: 7042319
    Abstract: The present invention provided a thin-film electromagnet including a magnetic yoke and a thin-film coil, characterized in that the magnetic yoke includes a first magnetic yoke and a second magnetic yoke making contact with the first magnetic yoke, the first magnetic yoke is located at a center of a winding of the thin-film coil, and the second magnetic yoke is arranged above or below the thin-film coil such that the second magnetic yoke faces the thin-film coil, and overlaps at least a part of the thin-film coil.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: May 9, 2006
    Assignee: Denso Corporation
    Inventors: Nobuyuki Ishiwata, Hiroaki Honjo, Tamaki Toba, Shinsaku Saito, Keishi Ohashi
  • Patent number: 7026896
    Abstract: The invention relates to a relay comprising a coil bobbin, a core penetrating the coil bobbin and a yoke. To achieve a high switching force with a low overall height, the cross-sectional area of the core is greater in the region toward the transition to the yoke than in the central region of the coil bobbin. Increased magnetic flux can be conveyed from the core owing to the cross-sectional enlargement and at the same time more coil windings can be arranged in the central region owing to the reduced cross-section there. Both measures act together and allow high switching forces with low overall height.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: April 11, 2006
    Assignee: Tyco Electronics Austia GmbH
    Inventors: Rudolf Mikl, Leopold Mader, Bernd Adrian, Johannes Helmreich
  • Patent number: 6927352
    Abstract: A multiposition microswitch that includes a cavity, a mobile portion made of a deformable material extending above the cavity, at least three conductive tracks extending on the cavity bottom, and a contact pad on the lower surface of the mobile part. The mobile part is capable of deforming, under the action of a stressing mechanism, from an idle position where the contact pad is distant from the conductive tracks to an on position from among several distinct on positions. The contact pad electrically connects, in each distinct on position, at least two of the at least three conductive tracks, at least one of the conductive tracks connected to the contact pad in each distinct on position being different from the conductive tracks connected to the contact pad in the other distinct on positions.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: August 9, 2005
    Assignee: STMicroelectronics S.A.
    Inventors: Guillaume Bouche, Daniel Saias
  • Patent number: 6750744
    Abstract: An electromagnetic relay is provided with an iron core (50) which has a virtually J-letter shape on a plan view with one end serving as a support-receiving portion (51) and the other end serving as a magnetic pole portion (52), and a movable iron member (60) which is supported by a movable contact member (70) attached to a corner thereof, and has a virtually L-letter shape on a plan view with one end (61) being supported on the support-receiving portion (51) of the iron core (50) so as to freely pivot thereon and an adsorb portion (62) that is the other end being allowed to face the magnetic pole portion (52) of the iron core (50) so as to be adsorbed thereon. The objective of the present invention is to provide an inexpensive electromagnetic relay which is less susceptible to deviations in the adsorb portion of the movable iron member that comes into contact with and separates from the magnetic pole portion of the iron core, and has stable operation characteristics.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: June 15, 2004
    Assignee: Omron Corporation
    Inventors: Syuichi Misumi, Yuichi Kariya, Hiroyuki Miyano, Shigekazu Aoki, Kenji Nakamura, Tatsuro Ishikawa, Takehiko Nakagawa
  • Patent number: 6611184
    Abstract: An electromagnetic relay having a base and an armature. The base having a first fixed contact support having a first fixed contact and a second fixed contact support having a second fixed contact. The armature having a first end and a second end. A contact bridge mechanically coupled to the first end by a transfer spring and having a first moveable contact and a second moveable contact. The contact bridge positioned between the first fixed contact support and the second fixed contact support such that the first fixed contact is substantially adjacent to the first moveable contact and the second fixed contact is substantially adjacent to the second moveable contact. An armature spring positioned on the second end of the armature for urging the contact bridge toward the first fixed contact.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: August 26, 2003
    Assignee: Tyco Electronics Amp GmbH
    Inventor: Ralf Hoffmann
  • Patent number: 6545575
    Abstract: In a relay (100), right and left sides of an edge on an upper end side of an L-shaped armature (201) are bent to form an engagement portion (201a) and the armature 201 is held to be rocked and displaced through an energizing spring piece (205c) of a hinge spring (205) in a state in which the engagement portion (201a) is engaged with an edge portion 204c of an end face 204a on an upper end side of a core (204). During magnetic adsorption, moreover, an upper end of the armature (201) has an outer peripheral surface thereof to abut on the end face (204a) at the upper end side of the core (201) in a close contact state.
    Type: Grant
    Filed: September 4, 2001
    Date of Patent: April 8, 2003
    Assignee: Idec Izumi Corporation
    Inventors: Michio Hirabayashi, Syuuichi Taga, Yoshiaki Tsurui, Katsuhiro Ikeda, Tsutomu Takada, Shigeru Tsujimura, Masaaki Yamazaki, Hirokazu Mukai
  • Patent number: 6359537
    Abstract: A electromagnetic relay includes a spool, a coil, a U-shaped yoke, an armature, a movable contact, a pair of stationary contacts, and a taper. The spool has an inner hole and first and second flange portions formed at its two ends. The coil is wound on the spool. The yoke is locked at the flange portions of the spool by press fitting to stride over the coil. The armature is movably connected to one end of the yoke and positioned to extend through the inner hole of the spool. The movable contact is attached to move in an interlocked manner with the armature. The pair of stationary contacts are arranged to sandwich the movable contact. The taper is formed on at least one of press-fit locking surfaces of one end of the yoke and the first flange portion, and has a locking force that increases as being closer to a vicinity of the inner hole of the spool. A method of adjusting an electromagnetic relay, and a method of assembling an electromagnetic relay are also disclosed.
    Type: Grant
    Filed: April 25, 2000
    Date of Patent: March 19, 2002
    Assignee: NEC Corporation
    Inventors: Kazuhiro Ichikawa, Tatsumi Ide, Tsutomu Ono, Yosinori Sugawara, Toshiaki Chiba, Tosiyuki Gotou
  • Patent number: 6232858
    Abstract: A relay is formed by a magnet system which includes a wound coil body, an L-shaped core arranged axially therein and an, L-shaped armature as well as an insulator base from which side terminal elements project and in which stationary and movable contact elements are arranged. The actuation of the movable contact elements is carried out by way of a slide coupled to the armature. The magnet system is fastened to the base with fastening continuations which are provided at the magnet system and that engage upward projections of the base thereby firmly joining the magnet system to the base. The L-shaped armature includes a free end seated at the free end of the longitudinal leg of the L-shaped core. The fastening of the armature is carried out by a U-shaped armature spring which includes one arm secured to the longitudinal leg of the L-shaped armature and a second arm plugged into the axial recess of the coil body which also houses the longitudinal leg of the L-shaped core.
    Type: Grant
    Filed: October 18, 1999
    Date of Patent: May 15, 2001
    Assignee: EH-Schrack Components Aktiengesellschaft
    Inventor: Klaus Reiter
  • Patent number: 6225880
    Abstract: The inventive relay has a base body in the form of a coil body (1), the base body supporting a core (16), a yoke (20), an armature (22) and a contact spring (23) which is connected to the armature. Fixed contact supports (34) and a contact spring connection pin (5) which consist of semi-finished wire with a preferably rectangular or square cross-section are embedded in a flange (12) of the coil body (1). The inventive electromagnetic relay is therefore very simple to produce. There is no wasted material, no punching tools are needed for the contact connection parts and since no particles of plastic are abraded by insertion, there is no risk of this impairing the quality of the relay.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: May 1, 2001
    Assignee: Tyco Electronics Corp
    Inventor: Josef Kern
  • Patent number: 6133813
    Abstract: A relay has a leaf spring that is secured to a planar seating section of a yoke leg and/or to the planar seating section of the armature and has an unsecured spring section extending beyond the free end of the yoke leg or, respectively, the armature. In order to avoid a plastic deformation of the leaf spring given impacts, the planar seating section respectively merges into a convexly curved roll-off section of which the leaf spring rolls off given a blow without being bent permanently. The end of the roll-off motion is expediently limited by a detent and, in this way, it is assured that the relay does not suffer any permanent modifications of its characteristics, even given heavy blows.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: October 17, 2000
    Assignee: Siemens Electromechanical Components GmbH & Co. KG
    Inventors: Martin Hanke, Thomas Buescher
  • Patent number: 6043730
    Abstract: An electromagnetic actuator has an iron core around which a coil is wound; two permanent magnets, the same poles of which are placed on the ends of the core which extend beyond the coil and which have the same direction of polarity; magnetic poles formed on either end of the iron core; a yoke which connects the poles of the magnets opposite those which face the core; and an iron armature which is supported by a fulcrum on the yoke in such a way that it is free to rotate around the fulcrum, and which has on either end a magnetic pole which faces one of the poles of the core.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: March 28, 2000
    Assignee: Omron Corporation
    Inventors: Kozo Maenishi, Kazuo Tsuboi
  • Patent number: 5986529
    Abstract: An inexpensive electromagnetic relay with a simple configuration is provided which does not require a sliding core to attain the desired operating characteristics. The electromagnetic relay includes a movable component which is supported on an upper end of a coil block in a way that the movable component can freely rotate. The movable component further comprises a movable contact element and a movable iron member. The movable contact element and the movable iron member are isolated from each other by a retainer. The movable contact element, movable iron member and retainer all form a single piece. The retainer further comprises a first retainer portion for retaining the movable contact element, and a second retainer portion for retaining the movable iron member. The first and second retainer portions are also formed into a single piece.
    Type: Grant
    Filed: February 2, 1998
    Date of Patent: November 16, 1999
    Assignee: Omron Corporation
    Inventors: Hirotaka Miyata, Masanori Nakamura, Hironori Sanada, Masahiro Kuwahara, Masahiko Tashiro
  • Patent number: 5959519
    Abstract: A switch device including an inner yoke and an outer yoke are arranged around the winding of an electromagnetic block, and a plate-shaped permanent magnet is inserted between the two yokes. A highly efficient actuation of the switching device is achieved by the assistance of the permanent magnet.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: September 28, 1999
    Assignee: Siemens AG
    Inventors: Ralph-Ronald Gobel, Norbert Sorgel, Hans Pfab
  • Patent number: 5929730
    Abstract: A single or double relay is provided. The relay has a base and a coil body. Each relay has a coil with an axis parallel to the bottom side of the base, an angled yoke and a plate-shaped armature. The armature is connected to a contact spring that is split into two fork-like legs. A contact leg carries a movable contact and a terminal leg that is connected to a spring carrier in the region in front of the movable armature end. With the double relay, the two armatures lie parallel at opposite ends of the base. The design yields a simple assembly with good heat dissipation particularly for a double relay for high switching currents.
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: July 27, 1999
    Assignee: Siemens Aktiengesellschaft
    Inventor: Horst Hendel
  • Patent number: 5900791
    Abstract: An armature-mounting arrangement for a hinged-armature relay includes a yoke (3), an armature (1) positioned at an end portion of the yoke, and an armature holding spring (2) which has at least one switching contact thereon and which is mechanically coupled to the armature. The armature holding spring is formed as one piece with a return spring (5) for the armature and also with spring hooks (4). Each of the spring hooks has a first portion (4a) lying substantially flat on an outer side of the armature and a second portion (4b) extending from the first portion about the armature and lying almost flat against an outer surface of the yoke. This armature-mounting arrangement is a particularly uncomplicated and cost effective structure and its operation is also not particularly sensitive to fabrication tolerances of the armature and the yoke.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: May 4, 1999
    Assignee: Hella KG Hueck & Co.
    Inventors: Wolfgang Hoffmann, Andre Koerner, Maik Zimmer
  • Patent number: 5894254
    Abstract: A relay is formed by a magnet system containing a wound coil body, an L-shaped core arranged axially therein, an L-shaped armature and a base element with terminal elements. Stationary and moving contact elements are arranged between the base element and the magnet system. The armature is mounted with the free end of its transverse leg at the free end of the longitudinal leg of the core. The armature is secured through a U-shaped armature spring wrapping around the armature. The spring is secured with one arm at the longitudinal leg of the armature and a second arm is inserted in a recess between the coil body and the core. The actuation of the moving contact elements is provided via a slide coupled to the armature. This slide is hooked to the armature by spring tabs of the armature spring at opposing sides of the armature through snap latches formed at the ends of the side arms of the slide.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: April 13, 1999
    Assignee: EH Schrack Components AG
    Inventors: Klaus Reiter, Zoran Gmajner, Ernst Bittermann
  • Patent number: 5889454
    Abstract: An electromagnetic relay and methods for its manufacture are provided. The relay has a coil body with flanges and with at least one winding disposed between the flanges. A rod-shaped core is respectively arranged axially inside each winding. The yoke is secured against motion in the longitudinal direction and against pivotal movement in a coil flange by mounting elements. In addition, the first end of the core is connected on the side surface of the first yoke leg by welding or soldering. A double relay with first yoke legs disposed next to each other in parallel fashion is preferably created, whereby the core-yoke connection is produced in a simple manner and a good magnetic transition is ensured.
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: March 30, 1999
    Assignee: Siemens Aktiengesellschaft
    Inventor: Horst Hendel
  • Patent number: 5864268
    Abstract: An electromagnetic relay constructed as a hinged-armature relay in which an armature (5) is attached to a flat-shaped spring (6) which spring is constructed as one piece to serve both as a switch-contact spring and as a return spring and which is mechanically and electrically coupled to a load-current terminal (11), with the load-current terminal having a spring affixing area (11a) and a terminal area (11b), wherein the spring affixing area and the terminal area of the load-current terminal are bendable relative to one another. A response voltage of such a relay can be adjusted in a particularly uncomplicated and quick manner using a wedge-shaped adjusting tool (12) to bend the affixing area relative to the terminal area.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: January 26, 1999
    Assignee: Hella KG Hueck & Co.
    Inventors: Wolfgang Hoffmann, Andre Koerner, Maik Zimmer
  • Patent number: 5861785
    Abstract: An electromagnetic relay, having a core 3 fixed by press-fitting in a yoke 4, which is facilitated in attaching operation and eliminated of the possibility, during press-fitting, of being placed in poor contact by metal chips produced by cutting away the yoke 4 by the core 3. The core 3 is provided with a smaller diameter portion 3c at an end portion and is inserted into a center of a bobbin 1 having a coil 2 wound therearound. A cutout 5 is formed in the yoke 4 so as to receive by press-fitting the smaller diameter portion 3c of the core 3. First slant surfaces 6 are formed in the edge of an opening of the cutout 5 such that the wall thickness becomes thinner toward the opening. Second slant surfaces 7 are provided in the form of curved surfaces at the terminal ends of the first slant surfaces in a manner smoothly continuing to a general surface of the yoke 4 and also to the first slant surfaces 6.
    Type: Grant
    Filed: December 24, 1996
    Date of Patent: January 19, 1999
    Assignee: Niles Parts Co., Ltd.
    Inventors: Shigeru Kobayashi, Nobuo Ishibashi, Masaaki Tanabe
  • Patent number: 5801608
    Abstract: The relay has a magnet system with an armature that operates on a switching spring via an actuating element. This switching spring has a frame-shaped contact spring as well as a fork-shaped reset spring, intermeshed in one plane and mutually decoupled, whereby the reset spring guides the actuating element via at least two linkage points lying in a line parallel to the pivot axis. The relay of the present invention provides a compact construction with few individual parts and a very low-friction operation.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: September 1, 1998
    Assignee: EH-Schrack Components-AG
    Inventor: Leopold Mader
  • Patent number: 5781089
    Abstract: An electromagnetic relay includes a winding, a magnetic core disposed within the winding, and an armature mounted for movement at a first end of the winding. At least one movable circuit contact is operably associated with the armature and movable with respect to at least one stationary contact mounted in the relay responsive to motion of the armature. An end plate is mounted at an opposing end of the winding and an insulating sheet is folded about a portion of the winding. The insulating sheet has first and second sides, with the first side being secured on one end to the end plate, and the second end disposed between the armature and the first end of the winding. An outer frame covers at least a portion of the insulating sheet. The insulating sheet functions to reduce the occurrence of voltage breakdown within the relay.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: July 14, 1998
    Assignee: Siemens Electromechanical Components, Inc.
    Inventor: Jeffrey A. Doneghue
  • Patent number: 5748061
    Abstract: An electromagnetic relay has low heat transmission from the electromagnetic block to the contacts and a conductive circuit would have low electrical resistance. In the relay, a movable contact terminal is caulked to a yoke with a flat protruding segment between them to act as a spacer to reduce the heat transmission. The relay may also have a movable contact terminal and a movable hinged spring fixed to the yoke of the electromagnetic block. The hinged spring may then be directly electrically connected to the movable contact terminal which is fixed to the yoke to lower the electrical resistance.
    Type: Grant
    Filed: January 9, 1997
    Date of Patent: May 5, 1998
    Assignee: Omron Corporation
    Inventors: Kazuhiro Tsutsui, Seiji Imamura
  • Patent number: 5574416
    Abstract: An electromagnetic relay is composed of a coil wound around magnetic core, a U-shaped magnetic pole member connected to an end of the magnetic core and provides a space, a yoke member connected to the other end of the magnetic core, an armature movably connected to the yoke and disposed in the space, a permanent magnet secured to the armature near the magnetic core and supporting member supporting the armature. Since the permanent magnet is disposed near the magnetic core, magnetic flux of the permanent magnet can be utilized effectively and, therefore, the size of the relay can be reduced.
    Type: Grant
    Filed: December 13, 1995
    Date of Patent: November 12, 1996
    Assignee: Nippondenso Co., Ltd.
    Inventors: Terutaka Maruyama, Seiji Kawai, Hiroyuki Hirata
  • Patent number: 5519369
    Abstract: The electromagnet system has a bent yoke and a round core which has a constant cross-section from a pole end towards a mounting end, and the core has an outwardly expanded tapered section at the mounting end. The core is inserted from the outside into a hole in the yoke, with the pole end being first, and the core is adjusted and fixed by means of pulse-like shocks. Thus, the core is joined to the yoke by a force fit which is a uniformly reliable firm seat.
    Type: Grant
    Filed: January 10, 1994
    Date of Patent: May 21, 1996
    Assignee: Siemens Aktiengellschaft
    Inventor: Horst Hendel
  • Patent number: 5270674
    Abstract: An electromagnetic relay of the present invention has a large dielectric strength between a coil and each contact because of an insulative member interposed therebetween. Even if the straight distance between the coil and each contact is small, it is possible to obtain a sufficient dielectric strength without an extra process. Moreover, since a leg part of the coil terminal is coated with an insulative resin, the dielectric strength between the coil terminal and a movable iron element or a movable contact piece is enhanced. An insertion window formed in an insulating plate of the coil helps to insert a thickness gauge with high positioning accuracy.
    Type: Grant
    Filed: November 19, 1991
    Date of Patent: December 14, 1993
    Assignee: Omron Corporation
    Inventors: Yoichi Nakanishi, Ryuichi Sato, Hiroyuki Sagawa, Masayuki Noda, Mitsuhiro Kawai, Kazumi Sako
  • Patent number: 5126710
    Abstract: A high-sensitivity electromagnetic relay comprises a magnetic circuit polarized by a permanent magnet, a flux distributor, an operating coil, and a moving core cooperating with the flux distributor by means of an air-gap. A return spring passes completely through the core being inserted between the flux distributor and the external end of a guide tube, which is shaped as a bottle-neck having a widened part housing the core, and a narrow part capable of sliding in an aperture.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: June 30, 1992
    Assignee: Merlin Gerin
    Inventors: Pierre Schueller, Pierre Laffont, Bruno Querlioz
  • Patent number: 5015978
    Abstract: A miniature flat relay comprising upper and lower insulating housing member. The lower member has a coil which snugly fits therein. The coil contains a core with a centrally located permanent magnet which energizes a U-shaped magnetic structure and provides a fulcrum for seesaw mounting an elongated armature. Movable electrical contacts project from opposite ends of the armature. A central section of the contacts forms hinge sections which project therefrom in order to secure the armature at said fulcrum. The armature may be made either bi-stable or monostable.
    Type: Grant
    Filed: May 25, 1988
    Date of Patent: May 14, 1991
    Assignee: NEC Corporation
    Inventors: Kiyotaka Yokoo, Hideki Hitachi, Matsujiro Ikeda
  • Patent number: 4994776
    Abstract: A latching solenoid which effects latching through a magnetic flux arrangement rather than a electromechanical latching mechanism. An electro-magnetic arrangement is used to move the solenoid from one latched position to the other.
    Type: Grant
    Filed: July 12, 1989
    Date of Patent: February 19, 1991
    Assignee: Babcock, Inc.
    Inventor: Gheorghe C. Juncu
  • Patent number: 4975666
    Abstract: A polarized electromagnetic relay is designed to have a minimum height as less as that of an electromagnet block constituting one major part of the relay. The relay includes a base which is formed to receive the electromagnet block and to have a set of fixed contacts. The electromagnet block includes a generally U-shaped yoke with a pair of opposed legs connected by a center core and at least one excitation coil wound around the center core. An armature block is mounted within the base together with the electromagnet block and comprises an elongated armature extending over the opposed pole legs and pivotally supported for movement between first and second positions about a pivot axis. The armature block carries a movable contact for contact selectively with one of the fixed contacts in response to the armature movement between the first and second positions.
    Type: Grant
    Filed: March 14, 1990
    Date of Patent: December 4, 1990
    Assignee: Matsushita Electric Works, Ltd.
    Inventor: Kazuhiro Nobutoki
  • Patent number: 4914411
    Abstract: The electro-magnet relay of the present invention utilizes an iron core and an armature both formed as flat plates stacked together. Further, a stationary leaf spring and a moveable leaf spring are provided in the middle section of the iron core having two legs and being shaped as an inverted U. The armature is supported in a hole located in the insulating substrate and may swing to a degree determined by a striking piece formed on the armature. Coil terminals and contact terminals protruding from the bottom of the insulating substrate are arranged in a single line in the electro-magnetic relay of the present invention and may be installed on a high density printed circuit board.
    Type: Grant
    Filed: January 9, 1989
    Date of Patent: April 3, 1990
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Hiroshi Hikita, Katsumi Shibata, Hideo Oishi, Hiroshi Yoshikawa
  • Patent number: 4881053
    Abstract: An electromagnetic relay having an electromagnetic block with a roughly U-shaped iron core formed with a pair of bent opposing magnetic poles at both the ends thereof and with a coil wound therearound via a spool; and an armature block with both ends thereof opposing the magnetic poles and with the middle portion thereof pivotally supported. A permanent magnet is disposed between the two opposing magnet poles of the iron core so as to oppose said armature. The permanent magnet is supported by a support member formed integral with the spool of the electromagnetic block. The armature is pivotally supported by the electromagnetic block.
    Type: Grant
    Filed: March 11, 1988
    Date of Patent: November 14, 1989
    Assignee: Omron Tateisi Electronics Co.
    Inventors: Takashi Tanaka, Takezo Sano, Tsutomu Shimizu
  • Patent number: 4827232
    Abstract: A relay, particularly a miniature relay, comprising a mounting base of insulating material having the contact system and the magnet system attached thereto a slip-on cover extends to the bottom of the mounting base, through which the coil and contact terminals are brought out. The core of the magnet system is disposed in the direction of the longitudinal axis of the cover. Accordingly a coil form is integrally formed on the mounting base on a side opposite the bottom (3) of the mounting base (2), and between the mounting base and an internal flange of the coil form there is a hollow portion which is open on at least one side and in which the pole piece is inserted.
    Type: Grant
    Filed: September 8, 1987
    Date of Patent: May 2, 1989
    Assignee: Alcatel N.V.
    Inventor: Werner Minks
  • Patent number: 4795994
    Abstract: A high-speed, high-reliability electromagnetic relay particularly adapted for use in electronic systems in a configuration suitable for signal frequencies from DC to about 8 GHz. A permanent magnet is embedded in a nonconductive material, which is adapted to loosely receive a mid-portion of a contact reed. The embedded permanent magnet serves as a slider. One end of the contact reed is pivotally connected to an input pin of the relay, such that the contact reed can pivot from a first position to a second position while remaining in electrical contact with the input pin. The slider is situated such that the other end of the contact reed is normally in electrical contact with a first output pin, held there by magnetic attraction of the permanent magnet to the relay electromagnet. When the electromagnet of the relay is activated, the slider is repelled from the electromagnet, causing the contact reed to be pivoted away from the first contact pin until it stops in electrical contact against a second output pin.
    Type: Grant
    Filed: June 4, 1987
    Date of Patent: January 3, 1989
    Assignee: F L Industries Inc.
    Inventor: Jerzy Hoffman
  • Patent number: 4792776
    Abstract: A miniature relay (1) capable of switching high currents combines the armature spring function with that of at least one (72, 73) movable contact. One end (71) of the spring is attached to the core (3) while the other end (75) is movable and attached to the armature (75) in the vicinity of the working air gap (36). Variously shaped springs are utilized to support the movable contact and mechanically bias the armature to maintain the working air gap.
    Type: Grant
    Filed: September 24, 1987
    Date of Patent: December 20, 1988
    Assignee: Siemens Aktiengesellschaft
    Inventor: Klaus Lueneburger