EP0844638A1 - Bistabiler elektromagnetischer Relais-Anordnung - Google Patents

Bistabiler elektromagnetischer Relais-Anordnung Download PDF

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Publication number
EP0844638A1
EP0844638A1 EP97402796A EP97402796A EP0844638A1 EP 0844638 A1 EP0844638 A1 EP 0844638A1 EP 97402796 A EP97402796 A EP 97402796A EP 97402796 A EP97402796 A EP 97402796A EP 0844638 A1 EP0844638 A1 EP 0844638A1
Authority
EP
European Patent Office
Prior art keywords
pallet
arrangement according
relay
magnetic
core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97402796A
Other languages
English (en)
French (fr)
Other versions
EP0844638B1 (de
Inventor
Daniel Arnoux
Axel Arnoux
Claude Genter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chauvin Arnoux SAS
Original Assignee
Chauvin Arnoux SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chauvin Arnoux SAS filed Critical Chauvin Arnoux SAS
Publication of EP0844638A1 publication Critical patent/EP0844638A1/de
Application granted granted Critical
Publication of EP0844638B1 publication Critical patent/EP0844638B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H2050/049—Assembling or mounting multiple relays in one common housing

Definitions

  • the present invention relates to a relay arrangement electromagnetic bistable polarized comprising at least two instantaneous electromagnetic relay devices monostable each comprising a cylinder head in the form of a L with one wing carrying a relay coil core, one electrical contact unit, a mounted armature swivel between end contact positions free from the nucleus and separated from the latter and one of which constitutes the rest position and the other the position of work and actuation of said electrical contacts, and an excitation coil to cause pivoting of the armature, and means of interaction between the relay devices so that the excitement of a coil causes the attraction of a frame and the repulsion of the other.
  • Bistable relay arrangements of this type are already known from French Patent No. 1,527,178.
  • the cylinder head, the core and the frame of each relay device constitutes a circuit magnetic which is independent of that of the other device.
  • the means of interaction are of a nature mechanics of complex structure and include a fork fixed on the cylinder heads made in the form of a single piece and on which a hoop is hinged biased towards the coils by elastic rods and hoses hung on it.
  • the hoop is placed in support on two cams mounted astride the upper edge of the two armature pallets with a cam having a shape allowing the hoop to drop out while the other carries a tooth capable of coming to hang on this one.
  • the object of the present invention is to provide a bistable relay arrangement which overcomes disadvantages of the state of the art.
  • the bistable relay arrangement is characterized in that it comprises a permanent magnet placed between the two devices relay so that a magnetic pole is magnetically connected to the two cylinder heads of the relay devices and polar masses magnetically connect the other pole of the magnet to the two paddles, and that the circuits the two relay devices are established from way that the magnetic flux produced by a coil excited goes in series through the two paddles superimposed on the magnetic flux produced by the magnet permanent.
  • the cylinder heads in L with one wing carrying the core carrying a coil excitation, of the two relay devices are axially aligned, leaving a predetermined interval, that a bar made of a material magnetic extends in the plane of the other two wings on full length of cylinder heads aligned at a gap predetermined ends thereof, preventing a passage of magnetic flux between the bar and the ends, that the two pallets are pivotally mounted on this bar and that two sets of polar masses are provided which magnetically connect the two core bearing wings of the cylinder heads relay devices and pallets, each set of polar masses being magnetically connected to a pole of the permanent magnet.
  • the sets of polar masses rest on a non-magnetic support placed on the wings not core carriers of relay devices and the bar of magnetic material.
  • each pallet is articulated, so swivel, at the lower longitudinal edge of the bar made of magnetic material which is far from the cylinder heads relay devices, at the inner edge of its internal face.
  • the arrangement comprises a device for safety in the form of a pendulum provided with a lever two arms, which is pivotally mounted in a parallel plane with non-core bearing wings, in the center between them, and the ends of the lever are connected respectively to the two pallets so that the repulsion movement of a core palette of relay device, with which it is associated, drives the movement of attraction from the other pallet towards its core.
  • Figure 1 is a perspective view, schematic and simplified, of a bistable relay arrangement according to the present invention, to explain the operation of this one by demonstrating the magnetic flux lines at the absence of excitation of the relay coils.
  • FIG. 2 is a view similar to that of FIG. 1, but shows the magnetic flux lines in the case of the excitation of one of the two coils.
  • Figures 3 and 4 are two schematic views and show two phases of assembling the arrangement of bistable relay according to figures 1 and 2.
  • Figure 5 is a top view of an arrangement of bistable relay according to the present invention.
  • Figure 6 is a rear view of the arrangement according to figure 5.
  • Figure 7 is a sectional view along line VII-VII in Figure 5.
  • Figure 8 is a sectional view along line VIII-VIII in Figure 5.
  • Figure 9 is a sectional view along line IX-IX in Figure 5.
  • Figure 10 is a sectional view along line X-X in Figure 5.
  • an arrangement of bistable electro-magnetic relay polarized includes, in the example shown, two instantaneous electromagnetic relay devices monostables 1 and 2 of the type described in the French patent N ° 1 527 178.
  • Each relay device 1 and 2 includes an L-shaped cylinder head 3 including a wing indicated at 5 carries a magnetic core 6 on which is fitted a coil 7 which is shown only schematically on Figures 1 and 2 but is clearly visible in particular in Figures 9 and 10, as well as a movable frame 9 produced in the form of a pallet, the part of which lower is configured in V.
  • the wing 12 of the cylinder head has a recess 15 which extends over the entire length of the wings of the cylinder heads aligned so that this wing is in fact constituted by the parts 16 which are formed by the wings of the L-profiles and by a bar-shaped part with cross section rectangular 17 which is separated by wing 16 in delimiting with the latter the longitudinal recess 15.
  • the recess 15 of the wing 12 of the cylinder heads can be filled by inserting a magnetic strip 18 for reasons which are explained below.
  • both cylinder heads 3 are axially aligned, leaving behind between them a slot 20.
  • a plate 21 made of a material not magnetic is placed on the wings 12 of the relays elementaries 1 and 2 of the bar 17.
  • two sets of polar masses 23, 24 are placed respectively in contact with the wings 5 of the cylinder heads 3 of the two elementary relays and the two pallets 9 when these occupy their closed position, that is to say in contact with the ends of the cores 6.
  • Each set of polar masses 23, 24 is formed by the superposition of two bars 25, 26 of section transverse rectangular.
  • the polar ground bars 25, 26 extend parallel to the axis of the cylinder heads and are arranged symmetrically with respect to the slot 20 left between it.
  • the lengths of bars 25 and 26 are chosen so that they are significantly lower than the distance between the two cores 6.
  • a magnet permanent 28 in the shape of a U is placed on both polar mass sets 23 and 24 at the slot 20 between the cylinder heads so that the front faces of the magnet rests on the polar masses.
  • the two pallets 9 are actuated by the excitation of coils 7 so as to be made to pivot alternately between a position attracted to their nucleus or repelled from it.
  • the relay arrangement includes a pendulum device 30 which is not shown schematically in Figures 1 and 2, but includes a lever-shaped element 31 with two arms of equal lengths, pivotally mounted on a vertical axis 32, that is to say parallel to the wings 5 of the cylinder heads 3.
  • the lever acts at its ends to the connecting means 33 on the pallets 9, at their end superior. So a movement of repulsion from a palette 9 causes the movement of attraction of the other.
  • the balance device constitutes a mechanism for security.
  • each pallet 9 is suitable for carrying three bent forks 35 of which only one is shown.
  • Each fork 35 is fixed to the pallet 9 by a screw 36 and carries to the ends of each fork leg 37 a pin 38 actuation of a relay contact device 40, as seen in Figures 7 and 8.
  • the through holes through the forks, fixing screws 36 have shapes oblong (not shown).
  • the pallets 9 bear, on their contacting areas with the edge face of the bars 17 of the wing 12 of cylinder head and the polar mass assembly before 24, indicated by 41 and 42 respectively, a plastic film in kapton 43 which creates an artificial air gap to avoid collages that could cause irregularities pallet surfaces.
  • FIGS. 5 to 10 represent an example concrete realization of a relay arrangement electromagnetic bistable according to the present invention and whose principle of structure has just been described in based on Figures 1 and 2.
  • each elementary relay device 1, 2 includes three contact modules 40a, b, c which are susceptible to be secured removably from the cylinder head, below of it.
  • the two modules 40a and 40b include each two contact units each constitute a change-over switch with movable contact 45 mounted at the free end of a flexible blade 46 of which the other end is fixedly mounted in the module and two fixed contacts, namely a break contact 47 and a working contact 48.
  • Each module 40a, 40b is associated to a fork 35 so that each blade 46 is actuated by a control pin 38 of the fork.
  • the two modules 40c are part of the device for exciting the coils 7 and their two contact units have only one contact mobile 45 cooperating with a fixed rest contact 47.
  • each pallet has upper bosses at its end and lower 50 for example formed by stamping and between which engages the edge of the cylinder head bar 17.
  • each mass set polar 23, 24 protrude by their two ends beyond of the ends of the upper bars 26. Thanks to this configuration the two bars of each set can be selectively fixed on their supports, using screws 52 and 53 respectively.
  • Figure 1 shows the relay arrangement in the idle state. Its coils 6 are not excited, that is to say unpowered and one of the pallets 9, designated by a is glued against the pole face of the core 6 of its actuating coil 7, while the other pallet 9b is in the pushed back state.
  • the dashed dashed lines indicate the magnetic flux produced by the permanent magnet 28.
  • the letters S and N denote the North and South poles, respectively.
  • the flow F produced by the magnet 28 is divided into two partial flows Fa and Fb flowing respectively through the pallets 9a and 9b.
  • the flow Fa passes from the north pole N of the magnet 28, through the left part of the front polar mass assembly 24, the closed pallet 9a, the core 6, the wing 5 of the cylinder head 3 of the elementary relay 1 and the left part of the rear pole mass 23 to reach the South pole of the magnet 28.
  • the flow Fb passes from the North pole N through the right part of the set of front pole pieces 24, more precisely the lower bar 25, the air gap formed between the latter and the pushed-back pallet 9b, from the latter to the bar 17 at the magnetic hinge 10, in the bar 17 towards the glued pallet 9a, at the latter of the bar 17 in the area of the magnetic hinge, through the core 6 and the upper bar 26 of polar mass 23 to reach the south pole of the magnet.
  • This magnetic flux Fb is of course much weaker than the flux Fa since it must pass through the air gap established by the pushed back pallet 9B.
  • Figure 2 shows the bistable relay arrangement at moment of excitation of coil 7 of relay elementary 1, the other coil not being excited.
  • the excited coil 7 generates a magnetic flux presented in the form of a dotted arrow line designated by f.
  • the excitation of the coil 7 produces a north pole N a the polar face of the nucleus 6. Since the pallet 9 also has magnetic polarity N, it is repelled by the force of repulsion as well created, as indicated by arrow R.
  • the magnetic flux lines Fa, Fb and f show that the pallets 9 and the bar 17 are drawn one towards each other in the area of their linear contact so that these areas in contact actually constitute magnetic hinges.
  • bistable relay arrangement which has just been described in se referring to the figures, despite its compactness, allows a quick assembly while ensuring simple adjustment and easy contacts and component parts, as it will demonstrated below.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Warehouses Or Storage Devices (AREA)
EP97402796A 1996-11-20 1997-11-20 Bistabile elektromagnetische Relais-Anordnung Expired - Lifetime EP0844638B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9614157 1996-11-20
FR9614157A FR2756093B1 (fr) 1996-11-20 1996-11-20 Agencement de relais electromagnetique bistable

Publications (2)

Publication Number Publication Date
EP0844638A1 true EP0844638A1 (de) 1998-05-27
EP0844638B1 EP0844638B1 (de) 2001-10-31

Family

ID=9497819

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97402796A Expired - Lifetime EP0844638B1 (de) 1996-11-20 1997-11-20 Bistabile elektromagnetische Relais-Anordnung

Country Status (5)

Country Link
US (1) US5867081A (de)
EP (1) EP0844638B1 (de)
DE (2) DE844638T1 (de)
ES (1) ES2165008T3 (de)
FR (1) FR2756093B1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6831535B1 (en) 2003-11-25 2004-12-14 China Patent Investment Limited Bistable electromagnetic relay
US7515025B2 (en) * 2006-12-20 2009-04-07 General Electric Company Current trip unit for circuit breaker
US8476996B2 (en) 2010-08-31 2013-07-02 Chih-Chuan Liang Bistable switching method and latching relay using the same
TWI553685B (zh) 2013-08-20 2016-10-11 梁智全 雙穩態繼電器與雙穩態致動器
JP6365684B2 (ja) * 2014-12-05 2018-08-01 オムロン株式会社 電磁継電器
JP2016110843A (ja) 2014-12-05 2016-06-20 オムロン株式会社 電磁継電器
JP6414453B2 (ja) 2014-12-05 2018-10-31 オムロン株式会社 電磁継電器
JP6631068B2 (ja) * 2015-07-27 2020-01-15 オムロン株式会社 接点機構およびこれを用いた電磁継電器
US10134551B2 (en) * 2016-09-21 2018-11-20 Astronics Advanced Electronic Systems Corp. Galvanically isolated hybrid contactor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1527178A (fr) * 1967-04-20 1968-05-31 Chauvin Arnoux Et Cie Relais électromagnétique à transformations
GB1178278A (en) * 1967-06-28 1970-01-21 Westinghouse Brake & Signal Improvements relating to Biased Electrical Relays.
DE3705918A1 (de) * 1987-02-25 1988-09-08 Hengstler Bauelemente Relais

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735968A (en) * 1956-02-21 Relay structure
US1695907A (en) * 1924-11-15 1928-12-18 Westinghouse Electric & Mfg Co Electrical relay
BE536832A (de) * 1954-06-10
US2942080A (en) * 1958-12-30 1960-06-21 Westinghouse Electric Corp Contactor
US3721927A (en) * 1971-07-30 1973-03-20 Siemens Ag Bistable polarized electromagnetic relay
US5587693A (en) * 1995-08-07 1996-12-24 Siemens Electromechanical Components, Inc. Polarized electromagnetic relay

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1527178A (fr) * 1967-04-20 1968-05-31 Chauvin Arnoux Et Cie Relais électromagnétique à transformations
GB1178278A (en) * 1967-06-28 1970-01-21 Westinghouse Brake & Signal Improvements relating to Biased Electrical Relays.
DE3705918A1 (de) * 1987-02-25 1988-09-08 Hengstler Bauelemente Relais

Also Published As

Publication number Publication date
ES2165008T3 (es) 2002-03-01
FR2756093A1 (fr) 1998-05-22
DE69707812D1 (de) 2001-12-06
DE69707812T2 (de) 2002-04-25
EP0844638B1 (de) 2001-10-31
US5867081A (en) 1999-02-02
FR2756093B1 (fr) 1998-12-31
DE844638T1 (de) 1999-01-07

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