EP1026717A1 - Relay with an L-shaped yoke and an armature that pivots on the edge of an arm of said yoke - Google Patents

Relay with an L-shaped yoke and an armature that pivots on the edge of an arm of said yoke Download PDF

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Publication number
EP1026717A1
EP1026717A1 EP00400292A EP00400292A EP1026717A1 EP 1026717 A1 EP1026717 A1 EP 1026717A1 EP 00400292 A EP00400292 A EP 00400292A EP 00400292 A EP00400292 A EP 00400292A EP 1026717 A1 EP1026717 A1 EP 1026717A1
Authority
EP
European Patent Office
Prior art keywords
relay
pallet
relay according
armature
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
EP00400292A
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German (de)
French (fr)
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EP1026717B1 (en
Inventor
Daniel Arnoux
Claude Genter
Axel Arnoux
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Chauvin Arnoux SAS
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Chauvin Arnoux SAS
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Publication date
Application filed by Chauvin Arnoux SAS filed Critical Chauvin Arnoux SAS
Publication of EP1026717A1 publication Critical patent/EP1026717A1/en
Application granted granted Critical
Publication of EP1026717B1 publication Critical patent/EP1026717B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/163—Details concerning air-gaps, e.g. anti-remanence, damping, anti-corrosion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
    • H01H50/305—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature damping vibration due to functional movement of armature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/04—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current
    • H01H47/10—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current by switching-in or -out impedance external to the relay winding

Definitions

  • the invention relates to a relay of the type comprising a L-shaped cylinder head fixed on an insulating base and of which a branch carries at least one core carrying a coil generator of a magnetic flux when it is traversed by an electric excitation current, a frame swivel mounted at the end of the other branch of the breech between an application position against the face frontal of the nucleus, with the interposition of an element anti-remanent, and a rest position away from it, and advantageously carrying a plurality of arms actuation of movable blades fixed at one end in the base and the other of which carries a contact element mobile intended to cooperate with a contact element fixed.
  • the object of the invention is to overcome these drawbacks of known relays.
  • the relay according to the invention is characterized in that the anti-remanent element is produced in the form of a plate of an elastically material deformable when applying the reinforcement against front face of the core so as to constitute a means of recall of the armature in its separated position.
  • the device for generating the excitation current of the coil has means ensuring a response time runs to excitement and release of the relay, advantageously less than 6 msec, including rebounds, for a nominal consumption of the order of 7 watts.
  • these ways to reduce response time reside in application to the coil for a very short time of a high excitation current, and then a higher current low relay maintenance.
  • the relay excitation current generator includes, mounted in series with the relay coil, a parallel connection of a capacitor and a resistance.
  • the relay has a backlash tab in one non-magnetic material with low elastic modulus interposed between the movable frame and the base.
  • the relay includes damping or suffocation means vibration on excitation and release of the relay, constituted by the anti-remanent element and the tongue of game catching up.
  • This relay enclosed in a transparent cover 1 in plastic material essentially comprises a cylinder head 2 in the shape of an L, a branch 3 of which carries two cores 6, as clearly seen in Figure 4 each carrying a coil 7, and a movable armature 9 mounted pivoting around the end 10 of the other branch 11 of cylinder head 2, between a rest position separated from free front faces 12 of the cores 6 and a position of work in which the armature is applied against these front faces, with the interposition of anti-remanence plates trigger 13 made of an elastic material deformable, an insulating base 15 supporting the two terminals 16 and 17 for connection to the voltage source external supply of the relay and a device 19 of electrical contacts configured to be actuated by the movable frame 9.
  • the two coils 7 are connected in series, connected imperatively by their winding outputs.
  • This montage aims to create two main air gaps opposite polarities in series by the movable armature common.
  • the addition of a common cylinder head creates a additional flow circulation which optimizes performance compared to single coil relay.
  • the movable frame 9 has a pallet part 21 and three brackets 22a, 22b and 22c which present the shape of an L, a branch of which is intended to come in support against the pallet 21 and can be made integral of it by a fixing screw 24 while the other end is formed by two arms 25 each carrying its free end an insulating actuation pin 26 of an electrical contact of the device 19 and of the stop 27.
  • Each piece is overmolded on the end of the arm and has the shape of a small cylinder extending from on either side of the arm and has upper portions 27 and lower 26 respectively forming the stop and actuator of the associated electrical contact.
  • the hole for the fixing screw 24 is formed by an oblong hole extending in the direction of adjustment.
  • a square 22a, b, c can serve for actuating a contact normally open or normally closed depending on its position more or less lowered on the pallet 21.
  • a blocking element 30 of which at least one is configured in catch and play cushioning tab vibrations 31, as will be explained later. A end of this tab is crossed by the screw fixing 24 while the free end 32 is pierced of a hole 33 for immobilizing the bracket during the setting.
  • the tongue is made of a material having a fairly low modulus of elasticity so as to conform when the pallet is closed for the first time, on a rear abutment face 33 of the base, as shown see in figure 2. It then channels the vibrations generated by the movable armature upon release from the relay, to the thermoplastic base 15.
  • Pallet 21 has, at its lower edge hinge means on the end 10 of the breech branch 11. As can be seen in particular on the Figure 6, these articulation means comprise at the level of each bracket 22a, b, c at the top of a projection 35 a short rib 36 which extends parallel to the end 10 of the breech branch and, on the part and on the other side of this rib 36, at a distance above this one, which is slightly greater than the thickness of this end 10, pins 37. Above the level of these pins we recognize at 38 the end of the screw fastening 24. Pallet 21 and thus the movable frame as a whole are mounted on the end 10 of the breech leg 11 by engagement of this end between the ribs 36 and the pins 37.
  • the movable frame 9 further comprises the two plates forming anti-retentives 13, which are produced in a elastically deformable material and each have a substantially rectangular shape by being folded at a predetermined angle ⁇ along a line of folding 40 which extends parallel to the pivot axis of the pallet 21 and at the end 10 of the branch of cylinder head 11, the lower part of each plate 13 has two holes 41 of slightly larger diameter to that of the lugs 37 and a hole 42 with a diameter slightly higher than the end 38 of the screw fixation.
  • the holes are arranged in such a way that the plate 13 can be mounted on the internal face 43 of the pallet being retained only by the pins 37 passing through holes 41 and 42.
  • Each plate is dimensioned so that its bottom edges and upper respectively lie slightly above of the rib 36 and below the upper edge of the pallet, the width corresponding to that of the brackets setting 22. It can also be seen that the fold line 40 goes through the diameter of hole 38.
  • a relaxation anti-remanent plate and amortization 13 is associated with each core 6 but is eccentrically arranged laterally towards outside. So when the pallet is drawn against the front faces 12 of its core when the relay is excited, the part located between the pallet 13 and the face frontal 12 of the cores is flattened while the part free lateral tends to retain its original shape arched, as clearly seen in Figures 4 and 5.
  • the elasticity module of the parts 13 is adapted to amperes for maintaining the relay and at the air gap main, that is to say at the pivot angle ⁇ of the pallet between its rest and working positions.
  • the insulating base 15 on which is fixed the branch of free cylinder head 11 consists of three modules 44a, 44b, 44c selectively removable.
  • Each base module has a pair of contacts electrical, which can be normal contacts closed (normally closed contact) or normally open (contact of work).
  • Each contact has a movable blade 46 which is held fixed at one end at 47 in the base 44 and carries at its other end an element of movable contact 48 or 48 'intended to cooperate with a fixed contact element 49, 49 'depending on whether it is a rest or work contact.
  • the terminals of external connection of movable contacts 48, 48 'and fixed 49, 49 ' are indicated respectively in 51 and 52, 52 '.
  • the quick response relay excitation device comprises, in accordance with FIG. 8a, mounted in series with the two polarized coils 7 of conversely, a series connection of a diode D1 and a parallel connection of a resistor R1 and a capacitor C1.
  • resistance R1 is divided into two resistors R1 'mounted in series on a printed circuit board 54, the capacitor C1 is found below the plate.
  • the excitation current generator device produces as a function of time t a current i as shown in FIG. 8b, which comprises a brief first phase during which the coils are supercharged by the flow of a current of high intensity, in due to capacitor C1 in parallel to resistor R1 and a second phase of flow of a current more low.
  • the high current of the first phase ensures the rapid excitation of the relay while the current of the second phase is the relay holding current.
  • the cover 1 of generally parallelepiped shape is in thermoplastic material.
  • the top wall of the hood is hollowed out and includes a plate 56 made of epoxy glass, the internal face 57 is covered with a copper layer like a printed circuit.
  • the plate 56 is drilled with a large number of holes 58 of small diameters which are arranged in a pattern of rows and columns at a relatively small step. These holes 58 constitute ventilation and degassing holes, such as this is symbolized by small arrows. As example, the holes could be 0.9mm one step 2.54 mm.
  • Reference numbers 59 to 61 denote the injection core, the stiffeners and four air vents. These shaped vents chimneys are located at the base of the hood and are formed by grooves in the inner wall face.
  • the plate 56 thus perforated could be replaced by a metal strip obtained by electrodeposition or in metallic fabric.
  • the plating could be made of nickel / cobalt with microperforations of a diameter of for example 3 to 5 ⁇ m and a step of 50 ⁇ m.
  • the internal face of the perforated plate 56 constitutes the place where condensation of acid vapors takes place nitric produced by arcs in the presence of humidity between the contact elements with load high and which condense in air confined to the inside of the cover on the coldest surfaces.
  • These surfaces in known relays, are those of contacts with low charge which are practically not heated, neither by the micro-arcs they generate nor by the coil.
  • the perforated plate 56 in the upper wall of the hood behaves like a radiator in relation to the external environment.
  • the plate 56 constitutes an aerator, the hot air escaping through the plate holes and the four vents at the base of the hood allows fresh air to be drawn in.
  • the perforated plate can be raincoat.
  • Gases caused by degassing of materials plastics can drain through the holes or micro-holes which, in the case of a nickel / cobalt plate with a diameter of 3 to 5 ⁇ m are still 30 times superior to unwanted gas molecules.
  • the rapid excitation of the relay i.e. the passage of the state of rest in the working state for example in a delay as short as 6 msec, including rebounds, is due to capacitor C1 which short-circuits resistance R1 at start of the process and therefore creates the steep climb slope of the current i that we see in figure 8b. Indeed, the coils are supercharged for a very short time, has find out the charge current of the excitation capacitor. Instantaneous consumption of relays is doubled meanwhile then stabilizes at its nominal value determined by the series resistance R1 for maintaining of the relay at work. The voltage pulse as well obtained is necessary to energize the relay, i.e. ensuring the transition from the state of rest to the state of job.
  • the excitation of the coils causes the pivoting of the palette which is attracted by the nuclei traversed by opposite direction induction flows.
  • the arms 25 integral with the pallet 21 then go, by through the insulating pins 26 driving the blades mobile 46 to cause the opening of the contacts rest, then closing working contact.
  • Pinches between pallet 21 and cylinder head 2 and placed in front each core 6, the two anti-persistant platelets and detent 13 serve as shock absorbers. They avoid pallet 21 all risks of rebounds on percussion and stifle vibrations.
  • the relay according to the invention has many advantages. Thanks to the invention, the time of response could be 6 msec to action as at release over a range of operating voltages ranging from 0.8 to 1.1 times the nominal voltage and throughout the temperature range from -10 ° C to 55 ° C defined in the standards. This response time is practically independent of the relay position and the performances are held in all types of combinations of contacts. Contact combinations separate save on relays standard with changeover contacts, 50% of fixed contacts and related documents. The volume of the relay, especially its base area is reduced. The relay presents a excellent shock and vibration resistance.
  • the two anti-retentive 13 have quadruple function to act as an anti-remanent to stabilize the tension of dropped by their thickness, to serve as a shock absorber action and release, to fulfill the role of "launcher" of the pallet at release to overcome the inertia of the movable frame and define, by the double allowance at the ends of the pallet the pivot axis of the movable frame.
  • Antiremantines are significant by their material non-magnetic, their thickness, their curve oriented towards the nucleus, their assembly in semi-freedom, that is to say without rigid fixing, their "flattening" to action, circumscribed only by the diameter of the corresponding core and where the "spared” side part keeps the “memory” elastic during assembly.
  • the modulus of elasticity of these anti-retentive is suitable for holding amps and at the main air gap, i.e. at the angle ⁇ of departure from the palette.
  • the play take-up tabs 31 of which at least one must be provided have the triple function of limiting the moving the movable armature at rest, playing the role of washers including hole 33 at the free end allows to immobilize them in rotation at the time of fixing the adjustment brackets 22 on the pallet, this which is essential to ensure the simultaneity of contacts, and to comply with the first closing of the pallet by resting on the stop of the base and then channel the vibrations generated by the armature movable when released towards the thermoplastic base.
  • the modulus of elasticity of the pallet must be chosen fairly low, correspondingly.
  • Adjustment brackets rigid with the pair of pins molded thermoplastics, are fundamental for damping, kinematics of contacts and combinations of contacts. They present the peculiarities of allowing height adjustment by pairs of contacts, to accomplish the dual function for moving blades and adjustment stop on a common plane formed by the breech.
  • the invention allows a blocking during the fixing of each bracket, which preserves the simultaneity of the contacts. Adjustment allows to clear the dispersion of tolerances and all combinations of contacts by offset of the brackets within a minimum non-overlap range.
  • the brackets set the constant opening angle of the pallet and define work and rest support. They guarantee the distances between the fixed contacts and mobile, i.e. normally open and normally closed. They allow simple control relays ended with the introduction of a pair of suitable shims between the breech leg 11 and the pawns 27 of all contacts to ensure rest and work accompaniments and midsize.

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  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Pinball Game Machines (AREA)

Abstract

The elastic anti-remanent element inserted between core and armature encourages a rapid response from the relay. The relay comprises a frame (2) formed in a L-shape, attached to an insulating base. One branch of the L-shape carries a core for a coil generating a magnetic flux. An armature (9) is mounted to pivot on the end of the other branch, with an anti-remanent element (13) inserted between the core and the branch of the L-shape. The armature includes a number of arms (25) which activate the mobile lamellae (46) of mobile contacts (48,48') which co-operate with fixed contacts (49,49'). The anti-remanent element is made as a plate of an elastically deformable material, deforming when the armature is applied to the front face (12) of the core (6), and providing a return spring when the armature returns to its rest position.

Description

L'invention concerne un relais du type comportant une culasse en forme d'un L fixé sur un socle isolant et dont une branche porte au moins un noyau porteur d'une bobine générateur d'un flux magnétique lorsqu'elle est parcourue par un courant électrique d'excitation, une armature montée pivotant à l'extrémité de l'autre branche de la culasse entre une position d'application contre la face frontale du noyau, avec interposition d'un élément antirémanent, et une position de repos écarté de celle-ci, et porteuse avantageusement d'une pluralité de bras d'actionnement de lames mobiles fixées à une extrémité dans le socle et dont l'autre porte un élément de contact mobile destiné à coopérer avec un élément de contact fixe.The invention relates to a relay of the type comprising a L-shaped cylinder head fixed on an insulating base and of which a branch carries at least one core carrying a coil generator of a magnetic flux when it is traversed by an electric excitation current, a frame swivel mounted at the end of the other branch of the breech between an application position against the face frontal of the nucleus, with the interposition of an element anti-remanent, and a rest position away from it, and advantageously carrying a plurality of arms actuation of movable blades fixed at one end in the base and the other of which carries a contact element mobile intended to cooperate with a contact element fixed.

Les relais de ce type, qui sont connus, présentent l'inconvénient d'avoir une structure complexe et encombrante et un temps de réponse relativement long.Relays of this type, which are known, have the downside of having a complex structure and cumbersome and a relatively long response time.

L'invention a pour but de pallier ces inconvénients des relais connus.The object of the invention is to overcome these drawbacks of known relays.

Pour atteindre ce but, le relais selon l'invention est caractérisé en ce que l'élément anti-rémanent est réalisé sous forme d'une plaquette en un matériau élastiquement déformable lors de l'application de l'armature contre la face frontale du noyau de façon à constituer un moyen de rappel de l'armature dans sa position écartée.To achieve this goal, the relay according to the invention is characterized in that the anti-remanent element is produced in the form of a plate of an elastically material deformable when applying the reinforcement against front face of the core so as to constitute a means of recall of the armature in its separated position.

Selon une autre caractéristique de l'invention, le dispositif générateur du courant d'excitation de la bobine comporte des moyens assurant un temps de réponse court à l'excitation et au relâchement du relais, avantageusement inférieur à 6 msec, rebonds compris, pour une consommation nominale de l'ordre de 7 watts. According to another characteristic of the invention, the device for generating the excitation current of the coil has means ensuring a response time runs to excitement and release of the relay, advantageously less than 6 msec, including rebounds, for a nominal consumption of the order of 7 watts.

Selon une autre caractéristique de l'invention, ces moyens de réduction du temps de réponse résident dans l'application à la bobine pendant un temps très bref d'un courant élevé d'excitation, et ensuite d'un courant plus faible de maintien des relais.According to another characteristic of the invention, these ways to reduce response time reside in application to the coil for a very short time of a high excitation current, and then a higher current low relay maintenance.

Selon une autre caractéristique de l'invention, le dispositif générateur du courant d'excitation du relais comprend, monté en série avec la bobine du relais, un montage en parallèle d'un condensateur et d'une résistance.According to another characteristic of the invention, the relay excitation current generator includes, mounted in series with the relay coil, a parallel connection of a capacitor and a resistance.

Selon encore une autre caractéristique de l'invention, le relais comporte une languette de rattrapage de jeu en un matériau amagnétique à module d'élasticité bas interposé entre l'armature mobile et le socle.According to yet another characteristic of the invention, the relay has a backlash tab in one non-magnetic material with low elastic modulus interposed between the movable frame and the base.

Selon encore une autre caractéristique de l'invention, le relais comporte des moyens amortisseurs ou d'étouffement de vibrations à l'excitation et au relâchement du relais, constitués par l'élément anti-rémanent et la languette de rattrapage de jeu.According to yet another characteristic of the invention, the relay includes damping or suffocation means vibration on excitation and release of the relay, constituted by the anti-remanent element and the tongue of game catching up.

L'invention sera mieux comprise et d'autres buts, caractéristiques, détails et avantages de celle-ci apparaítront plus clairement dans la description explicative qui va suivre faite en référence aux dessins schématiques annexés donnés uniquement à titre d'exemple illustrant un mode de réalisation de l'invention et dans lesquels :

  • La figure 1 est une vue en perspective d'un relais selon la présente invention.
  • La figure 2 est une vue, avec arrachement et à plus grande échelle, en direction de la flèche II de la figure 1, l'armature occupant sa position de repos.
  • La figure 3 est une vue similaire à la figure 2, à l'échelle réduite, mais montrant l'armature dans sa position de travail.
  • La figure 4 est une vue en perspective simplifiée montrant la culasse et les plaquettes d'antirémanent du relais selon l'invention à l'état de travail du relais, l'armature étant transparente pour illustrer la configuration du flux magnétique à l'intérieur du relais à l'état excité.
  • La figure 5 est une vue de dessus de la figure 4, avec représentation également de la palette de l'armature mobile du relais.
  • La figure 6 est une vue en perspective de l'armature mobile du relais selon l'invention, et des plaquettes d'antirémanent montées sur la palette.
  • Les figure 7a et 7b sont respectivement des vues latérale et frontale d'une plaquette d'antirémanent à l'état de détente.
  • Les figures 8a et 8b illustrent schématiquement respectivement le circuit d'alimentation des bobines du relais selon l'invention et la courbe caractéristique du courant d'alimentation en fonction du temps t.
  • La figure 9 est une vue en perspective de la face arrière de l'armature du relais selon l'invention.
  • La figure 10 illustrent le réglage des équerres de l'armature du relais selon l'invention pour un contact de travail et de repos.
  • La figure 11 est une vue en coupe le long de la ligne XI-XI de la figure 1, du capot du relais selon l'invention.
  • La figure 12 est une vue de dessus de la plaquette perforée du capot selon l'invention.
    • The invention will be better understood and other objects, characteristics, details and advantages thereof will appear more clearly in the explanatory description which follows, made with reference to the appended schematic drawings given solely by way of example illustrating an embodiment. of the invention and in which:
  • Figure 1 is a perspective view of a relay according to the present invention.
  • Figure 2 is a view, with cutaway and on a larger scale, in the direction of arrow II of Figure 1, the frame occupying its rest position.
  • Figure 3 is a view similar to Figure 2, on a reduced scale, but showing the armature in its working position.
  • FIG. 4 is a simplified perspective view showing the cylinder head and the anti-persistence plates of the relay according to the invention in the working state of the relay, the armature being transparent to illustrate the configuration of the magnetic flux inside the relay in energized state.
  • Figure 5 is a top view of Figure 4, also showing the pallet of the movable frame of the relay.
  • Figure 6 is a perspective view of the movable armature of the relay according to the invention, and anti-persistence plates mounted on the pallet.
  • FIGS. 7a and 7b are respectively side and front views of an anti-persistence plate in the relaxed state.
  • Figures 8a and 8b schematically illustrate respectively the supply circuit of the relay coils according to the invention and the characteristic curve of the supply current as a function of time t.
  • Figure 9 is a perspective view of the rear face of the relay frame according to the invention.
  • FIG. 10 illustrates the adjustment of the brackets of the relay frame according to the invention for a working and rest contact.
  • Figure 11 is a sectional view along line XI-XI of Figure 1, of the relay cover according to the invention.
  • Figure 12 is a top view of the perforated plate of the cover according to the invention.

    • On décrira ci-après, à titre d'exemple de la mise en oeuvre de l'invention, un relais électromagnétique à réponse rapide et à six contacts, tel que représenté sur la figure 1.An example of the implementation will be described below. work of the invention, an electromagnetic relay rapid response and six contacts, as shown in Figure 1.

    Ce relais enfermé dans un couvercle 1 transparent en matière plastique comporte essentiellement une culasse 2 en forme d'un L dont une branche 3 porte deux noyaux 6, comme on le voit clairement sur la figure 4 chacun porteur d'une bobine 7, et une armature mobile 9 montée pivotant autour de l'extrémité 10 de l'autre branche 11 de la culasse 2, entre une position de repos écartée des faces frontales libres 12 des noyaux 6 et une position de travail dans laquelle l'armature est appliquée contre ces faces frontales, avec l'interposition de plaques d'anti-rémanent de détente 13 en un matériau élastiquement déformable, un socle isolant 15 supportant les deux bornes 16 et 17 de raccordement à la source de tension d'alimentation extérieure du relais et un dispositif 19 de contacts électriques configurés pour être actionnés par l'armature mobile 9.This relay enclosed in a transparent cover 1 in plastic material essentially comprises a cylinder head 2 in the shape of an L, a branch 3 of which carries two cores 6, as clearly seen in Figure 4 each carrying a coil 7, and a movable armature 9 mounted pivoting around the end 10 of the other branch 11 of cylinder head 2, between a rest position separated from free front faces 12 of the cores 6 and a position of work in which the armature is applied against these front faces, with the interposition of anti-remanence plates trigger 13 made of an elastic material deformable, an insulating base 15 supporting the two terminals 16 and 17 for connection to the voltage source external supply of the relay and a device 19 of electrical contacts configured to be actuated by the movable frame 9.

    Les deux bobines 7 sont montées en série, raccordées impérativement par leurs sorties de bobinage. Ce montage a pour but de créer deux entrefers principaux de polarités opposées en série par l'armature mobile commune. L'adjonction d'une culasse commune crée une circulation de flux supplémentaire qui optimise les performances par rapport au relais à bobine unique.The two coils 7 are connected in series, connected imperatively by their winding outputs. This montage aims to create two main air gaps opposite polarities in series by the movable armature common. The addition of a common cylinder head creates a additional flow circulation which optimizes performance compared to single coil relay.

    L'armature mobile 9 comporte une partie formant palette 21 et trois équerres 22a, 22b et 22c qui présentent la forme d'un L dont une branche est destinée à venir en appui contre la palette 21 et peut être rendue solidaire de celle-ci par une vis de fixation 24 tandis que l'autre extrémité est formée par deux bras 25 portant chacun à son extrémité libre un pion isolant d'actionnement 26 d'un contact électrique du dispositif 19 et de butée 27. Chaque pion est surmoulé sur l'extrémité du bras et présente la forme d'un petit cylindre s'étendant de part et d'autre du bras et comporte des portions supérieure 27 et inférieure 26 formant respectivement la butée et organe d'actionnement du contact électrique associé.The movable frame 9 has a pallet part 21 and three brackets 22a, 22b and 22c which present the shape of an L, a branch of which is intended to come in support against the pallet 21 and can be made integral of it by a fixing screw 24 while the other end is formed by two arms 25 each carrying its free end an insulating actuation pin 26 of an electrical contact of the device 19 and of the stop 27. Each piece is overmolded on the end of the arm and has the shape of a small cylinder extending from on either side of the arm and has upper portions 27 and lower 26 respectively forming the stop and actuator of the associated electrical contact.

    Pour permettre un réglage de la position des équerres dans la direction perpendiculaire à l'axe de pivotement de la palette, le trou de passage de la vis de fixation 24 est formé par un trou oblongue s'étendant dans la direction de réglage. Ainsi une équerre 22a, b, c peut servir pour l'actionnement d'un contact normalement ouvert ou normalement fermé en fonction de sa position plus ou moins abaissée sur la palette 21. Entre les têtes de vis de fixation 24 et les équerres est interposé un élément de blocage 30 dont au moins un est configuré en languette de rattrapage de jeux et d'amortissement de vibrations 31, comme il sera expliqué plus loin. Une extrémité de cette languette est traversée par la vis de fixation 24 tandis que l'extrémité libre 32 est percée d'un trou 33 d'immobilisation de l'équerre lors du réglage. La languette est réalisée en un matériau ayant un module d'élasticité assez bas de façon à se conformer à la première fermeture de la palette en prenant appui sur une face de butée arrière 33 du socle, comme on le voit sur la figure 2. Elle canalise ensuite les vibrations générées par l'armature mobile au relâchement du relais, vers le socle en thermoplastique 15.To allow adjustment of the position of the brackets in the direction perpendicular to the pivot axis of the pallet, the hole for the fixing screw 24 is formed by an oblong hole extending in the direction of adjustment. Thus a square 22a, b, c can serve for actuating a contact normally open or normally closed depending on its position more or less lowered on the pallet 21. Between the heads of fixing screws 24 and the brackets is interposed a blocking element 30 of which at least one is configured in catch and play cushioning tab vibrations 31, as will be explained later. A end of this tab is crossed by the screw fixing 24 while the free end 32 is pierced of a hole 33 for immobilizing the bracket during the setting. The tongue is made of a material having a fairly low modulus of elasticity so as to conform when the pallet is closed for the first time, on a rear abutment face 33 of the base, as shown see in figure 2. It then channels the vibrations generated by the movable armature upon release from the relay, to the thermoplastic base 15.

    La palette 21 comporte, au niveau de son bord inférieur des moyens d'articulation sur l'extrémité 10 de la branche de culasse 11. Comme on le voit notamment sur la figure 6, ces moyens d'articulation comportent au niveau de chaque équerre 22a, b, c en haut d'une saillie 35 une nervure de faible longueur 36 qui s'étend parallèlement à l'extrémité 10 de la branche de culasse et, de part et d'autre de cette nervure 36, à une distance au-dessus de celle-ci, qui est légèrement supérieure à l'épaisseur de cette extrémité 10, des ergots 37. Au-dessus du niveau de ces ergots on reconnaít en 38 l'extrémité de la vis de fixation 24. La palette 21 et ainsi l'armature mobile dans son ensemble sont montées sur l'extrémité 10 de la branche de culasse 11 par engagement de cette extrémité entre les nervures 36 et les ergots 37.Pallet 21 has, at its lower edge hinge means on the end 10 of the breech branch 11. As can be seen in particular on the Figure 6, these articulation means comprise at the level of each bracket 22a, b, c at the top of a projection 35 a short rib 36 which extends parallel to the end 10 of the breech branch and, on the part and on the other side of this rib 36, at a distance above this one, which is slightly greater than the thickness of this end 10, pins 37. Above the level of these pins we recognize at 38 the end of the screw fastening 24. Pallet 21 and thus the movable frame as a whole are mounted on the end 10 of the breech leg 11 by engagement of this end between the ribs 36 and the pins 37.

    L'armature mobile 9 comporte en outre les deux plaquettes formant des antirémanents 13, qui sont réalisées en un matériau élastiquement déformable et présentent chacune une forme sensiblement rectangulaire en étant pliées selon un angle prédéterminé α le long d'une ligne de pliage 40 qui s'étend parallèlement à l'axe de pivotement de la palette 21 et à l'extrémité 10 de la branche de culasse 11, la partie inférieure de chaque plaque 13 comporte deux trous 41 d'un diamètre légèrement supérieur à celui des ergots 37 et un trou 42 d'un diamètre légèrement supérieur à l'extrémité 38 de la vis de fixation. Les trous sont disposés de telle façon que la plaquette 13 puisse être montée sur la face interne 43 de la palette en étant uniquement retenue par les ergots 37 passant à travers les trous 41 et 42. Chaque plaquette est dimensionnée de façon que ses bords inférieur et supérieur se situent respectivement légèrement au-dessus de la nervure 36 et en dessous du bord supérieur de la palette, la largeur correspondant à celle des équerres de réglage 22. On constate encore que la ligne de pliage 40 passe par le diamètre du trou 38.The movable frame 9 further comprises the two plates forming anti-retentives 13, which are produced in a elastically deformable material and each have a substantially rectangular shape by being folded at a predetermined angle α along a line of folding 40 which extends parallel to the pivot axis of the pallet 21 and at the end 10 of the branch of cylinder head 11, the lower part of each plate 13 has two holes 41 of slightly larger diameter to that of the lugs 37 and a hole 42 with a diameter slightly higher than the end 38 of the screw fixation. The holes are arranged in such a way that the plate 13 can be mounted on the internal face 43 of the pallet being retained only by the pins 37 passing through holes 41 and 42. Each plate is dimensioned so that its bottom edges and upper respectively lie slightly above of the rib 36 and below the upper edge of the pallet, the width corresponding to that of the brackets setting 22. It can also be seen that the fold line 40 goes through the diameter of hole 38.

    Une plaquette d'anti-rémanent de détente et d'amortissement 13 est associée à chaque noyau 6 mais est disposée de façon excentrée latéralement vers l'extérieur. Ainsi, lorsque la palette est attirée contre les faces frontales 12 de son noyau quand le relais est excité, la partie située entre la palette 13 et la face frontale 12 des noyaux est aplatie tandis que la partie latérale libre tend à conserver sa forme initiale cambrée, comme on le voit clairement sur les figures 4 et 5. Le module d'élasticité des pièces 13 est adapté aux ampèretours pour le maintien du relais et à l'entrefer principal, c'est-à-dire à l'angle β de pivotement de la palette entre ses positions de repos et de travail.A relaxation anti-remanent plate and amortization 13 is associated with each core 6 but is eccentrically arranged laterally towards outside. So when the pallet is drawn against the front faces 12 of its core when the relay is excited, the part located between the pallet 13 and the face frontal 12 of the cores is flattened while the part free lateral tends to retain its original shape arched, as clearly seen in Figures 4 and 5. The elasticity module of the parts 13 is adapted to amperes for maintaining the relay and at the air gap main, that is to say at the pivot angle β of the pallet between its rest and working positions.

    Le socle isolant 15 sur lequel est fixée la branche de culasse libre 11 se compose de trois modules 44a, 44b, 44c sélectivement amovibles.The insulating base 15 on which is fixed the branch of free cylinder head 11 consists of three modules 44a, 44b, 44c selectively removable.

    Chaque module de socle comporte une paire de contacts électriques, qui peuvent être des contacts normalement fermés (contact de repos) ou normalement ouverts (contact de travail). Chaque contact comporte une lame mobile 46 qui est maintenue fixe à une extrémité en 47 dans le socle 44 et porte à son autre extrémité un élément de contact mobile 48 ou 48' destiné à coopérer avec un élément de contact fixe 49, 49' selon qu'il s'agit d'un contact de repos ou de travail. Les bornes de raccordement extérieures des contacts mobiles 48, 48' et fixe 49, 49' sont indiquées respectivement en 51 et 52, 52'.Each base module has a pair of contacts electrical, which can be normal contacts closed (normally closed contact) or normally open (contact of work). Each contact has a movable blade 46 which is held fixed at one end at 47 in the base 44 and carries at its other end an element of movable contact 48 or 48 'intended to cooperate with a fixed contact element 49, 49 'depending on whether it is a rest or work contact. The terminals of external connection of movable contacts 48, 48 'and fixed 49, 49 'are indicated respectively in 51 and 52, 52 '.

    Le dispositif d'excitation du relais à réponse rapide selon l'invention comporte, conformément à la figure 8a, monté en série avec les deux bobines 7 polarisées de façon inverse, un montage en série d'une diode D1 et d'un montage en parallèle d'une résistance R1 et d'un condensateur C1. Sur la figure 1, la résistance R1 est divisée en deux résistances R1' montées en série sur une plaque à circuit imprimé 54, le condensateur C1 se trouvant en dessous de la plaque.The quick response relay excitation device according to the invention comprises, in accordance with FIG. 8a, mounted in series with the two polarized coils 7 of conversely, a series connection of a diode D1 and a parallel connection of a resistor R1 and a capacitor C1. In Figure 1, resistance R1 is divided into two resistors R1 'mounted in series on a printed circuit board 54, the capacitor C1 is found below the plate.

    Le dispositif générateur de courant d'excitation produit en fonction du temps t un courant i tel que représentée sur la figure 8b, qui comporte une première phase brève au cours duquel les bobines sont suralimentées par l'écoulement d'un courant d'une intensité élevée, en raison du condensateur C1 en parallèle à la résistance R1 et une deuxième phase d'écoulement d'un courant plus faible. Le courant élevé de la première phase assure l'excitation rapide du relais tandis que le courant de la deuxième phase est le courant de maintien du relais.The excitation current generator device produces as a function of time t a current i as shown in FIG. 8b, which comprises a brief first phase during which the coils are supercharged by the flow of a current of high intensity, in due to capacitor C1 in parallel to resistor R1 and a second phase of flow of a current more low. The high current of the first phase ensures the rapid excitation of the relay while the current of the second phase is the relay holding current.

    Le capot 1 de forme générale parallèlépipèdique est en matière thermoplastique. La paroi supérieure du capot est évidée et comporte une plaquette 56 en verre époxy dont la face interne 57 est recouverte d'une couche en cuivre à la manière d'un circuit imprimé. La plaquette 56 est percée d'un grand nombre de trous 58 de faibles diamètres qui sont arrangés selon un motif de rangées et de colonnes à un pas relativement faible. Ces trous 58 constituent des trous d'aération et de dégazage, comme cela est symbolisé par des petites flèches. A titre d'exemple, les trous pourraient être de 0,9 mm à un pas de 2,54 mm. Les numéros de référence 59 à 61 désignent respectivement la carotte d'injection, des raidisseurs et quatre évents d'aération. Ces évents en forme de cheminées se trouvent à la base du capot et sont formés par des rainures dans la face interne de paroi.The cover 1 of generally parallelepiped shape is in thermoplastic material. The top wall of the hood is hollowed out and includes a plate 56 made of epoxy glass, the internal face 57 is covered with a copper layer like a printed circuit. The plate 56 is drilled with a large number of holes 58 of small diameters which are arranged in a pattern of rows and columns at a relatively small step. These holes 58 constitute ventilation and degassing holes, such as this is symbolized by small arrows. As example, the holes could be 0.9mm one step 2.54 mm. Reference numbers 59 to 61 denote the injection core, the stiffeners and four air vents. These shaped vents chimneys are located at the base of the hood and are formed by grooves in the inner wall face.

    La plaquette 56 ainsi perforée pourrait être remplacée par un feuillard métallique obtenu par électrodéposition ou en toile métallique. L'électrodéposition pourrait être fait en nickel/cobalt avec des microperçages d'un diamètre de par exemple 3 à 5 µm et d'un pas de 50µm.The plate 56 thus perforated could be replaced by a metal strip obtained by electrodeposition or in metallic fabric. The plating could be made of nickel / cobalt with microperforations of a diameter of for example 3 to 5 μm and a step of 50 μm.

    La face interne de la plaque perforée 56 constitue l'endroit où à lieu la condensation des vapeurs d'acide nitrique que produisent en présence d'humidité les arcs électriques entre les éléments de contact avec charge élevée et qui se condensent dans un air confiné à l'intérieur du capot sur les surfaces les plus froides. Ces surfaces, dans les relais connus, sont celles des contacts avec faible charge qui ne sont pratiquement pas échauffées, ni par les micros-arcs qu'ils génèrent ni par la bobine.The internal face of the perforated plate 56 constitutes the place where condensation of acid vapors takes place nitric produced by arcs in the presence of humidity between the contact elements with load high and which condense in air confined to the inside of the cover on the coldest surfaces. These surfaces, in known relays, are those of contacts with low charge which are practically not heated, neither by the micro-arcs they generate nor by the coil.

    Dans le relais selon l'invention, la plaque perforée 56 dans la paroi supérieure du capot se comporte comme un radiateur par rapport à l'environnement extérieur. La plaque 56 constitue un aérateur, l'air chaud s'échappant à travers les trous de la plaque et les quatre évents à la base du capot permettent l'appel d'air frais. Selon le diamètre des trous, la plaque perforée peut être imperméable.In the relay according to the invention, the perforated plate 56 in the upper wall of the hood behaves like a radiator in relation to the external environment. The plate 56 constitutes an aerator, the hot air escaping through the plate holes and the four vents at the base of the hood allows fresh air to be drawn in. According to hole diameter, the perforated plate can be raincoat.

    D'autre part, il y a lieu, à l'intérieur du relais, un dégazage des matières plastiques, lent mais continu, qui peut être accéléré par l'échauffement de la bobine. Un même processus de dégradation avec éventuellement polymérisation des polymères de friction se produit sous l'action des battements mécaniques des lames mobiles et en absence d'arcs suffisant sur les contacts de faible niveau pour détruire de tels films de surface.On the other hand, there is, inside the relay, a degassing of plastics, slow but continuous, which can be accelerated by heating the coil. A same degradation process with possibly polymerization of friction polymers occurs under the action of the mechanical beats of the moving blades and in the absence of sufficient arcs on the weak contacts level to destroy such surface films.

    Les gaz occasionnés par le dégazage de matières plastiques peuvent s'évacuer à travers les trous ou micros-trous qui, dans le cas d'une plaquette en nickel/cobalt d'un diamètre de 3 à 5 µm sont encore 30 fois supérieur aux molécules des gaz indésirables.Gases caused by degassing of materials plastics can drain through the holes or micro-holes which, in the case of a nickel / cobalt plate with a diameter of 3 to 5 µm are still 30 times superior to unwanted gas molecules.

    On décrira ci-après brièvement le fonctionnement général du relais selon l'invention et certaines caractéristiques spécifiques de fonctionnement fondamental du relais selon l'invention.The general operation will be briefly described below. of the relay according to the invention and certain characteristics specific basic operating conditions of the relay the invention.

    L'excitation rapide du relais, c'est-à-dire le passage de l'état de repos à l'état de travail par exemple dans un délai aussi bref que 6 msec, rebonds compris, est dû au condensateur C1 qui court-circuite la résistance R1 au début de processus et crée donc la pente de montée raide du courant i qu'on voit sur la figure 8b. En effet, les bobines sont suralimentées pendant un temps très bref, a savoir le courant de charge du condensateur d'excitation. La consommation instantanée des relais est doublée pendant ce temps, puis se stabilise à sa valeur nominale déterminée par la résistance en série R1 pour le maintien du relais au travail. L'impulsion de tension ainsi obtenue est nécessaire pour exciter le relais, c'est-à-dire assurer le passage de l'état de repos à l'état de travail. L'excitation des bobines provoque le pivotement de la palette qui est attirée par les noyaux parcourus par des flux d'induction de sens contraire. Les bras 25 solidaires de la palette 21 vont alors, par l'intermédiaire des pions isolants 26 entraíner les lames mobiles 46 pour provoquer l'ouverture des contacts au repos, puis la fermeture de contact de travail. Pincées entre la palette 21 et la culasse 2 et placées devant chaque noyau 6, les deux plaquettes antirémanentes et de détente 13 servent d'amortisseurs. Ils évitent à la palette 21 tous risques de rebonds à la percussion et étouffent les vibrations.The rapid excitation of the relay, i.e. the passage of the state of rest in the working state for example in a delay as short as 6 msec, including rebounds, is due to capacitor C1 which short-circuits resistance R1 at start of the process and therefore creates the steep climb slope of the current i that we see in figure 8b. Indeed, the coils are supercharged for a very short time, has find out the charge current of the excitation capacitor. Instantaneous consumption of relays is doubled meanwhile then stabilizes at its nominal value determined by the series resistance R1 for maintaining of the relay at work. The voltage pulse as well obtained is necessary to energize the relay, i.e. ensuring the transition from the state of rest to the state of job. The excitation of the coils causes the pivoting of the palette which is attracted by the nuclei traversed by opposite direction induction flows. The arms 25 integral with the pallet 21 then go, by through the insulating pins 26 driving the blades mobile 46 to cause the opening of the contacts rest, then closing working contact. Pinches between pallet 21 and cylinder head 2 and placed in front each core 6, the two anti-persistant platelets and detent 13 serve as shock absorbers. They avoid pallet 21 all risks of rebounds on percussion and stifle vibrations.

    Au relâchement du relais, c'est-à-dire au passage de l'état de travail à l'état de repos, lorsque la tension de commande est coupée, les forces des six lames mobiles de travail et de repos 46, auxquelles s'ajoutent les forces des deux plaquettes anti-rémanent de détente 13 qui sont élastiquement déformées, assurent l'ouverture des contacts de travail par le rappel de l'armature mobile. Dans la continuité de son déplacement s'établissent ensuite la fermeture des contacts au repos, c'est-à-dire normalement fermés. A cet instant l'action des lames mobiles des contacts de repos cesse, ainsi que les forces des plaquettes antirémanentes 13 maintenant détendues. Le déplacement de l'armature mobile, lui, persiste en étant entretenu par les lames mobiles 46 des contacts de travail jusqu'à ce que les pions isolant 27 des bras 25 correspondant aux lames mobiles des contacts de repos butent sur la face inférieure de la branche de la culasse 11, qui constitue ainsi une référence commune. C'est donc la hauteur de ces pions isolants des seules lames mobiles avec contact de repos, qui définit de part la construction un jeu constant h entre la portion d'actionnement de pion 26 et la lame de contact de repos 46, comme on le voit sur la figure 2. L'intervalle de la hauteur h est appelée accompagnement de repos et constitue une réserve d'usure. L'action des forces des lames mobiles de travail persiste sur l'armature mobile et définit l'angle d'ouverture β de la palette.When the relay is released, i.e. when the working state in the resting state, when the tension control is cut, the forces of the six moving blades of work and rest 46, to which are added the forces of the two anti-retention expansion plates 13 which are elastically deformed, ensure the opening working contacts by recalling the armature mobile. In the continuity of its movement then establish the closure of the contacts at rest, that is, normally closed. At this moment the action movable blades of the rest contacts ceases, as well as the forces of the anti-persistence pads 13 now relaxed. The displacement of the movable frame, him, persists in being maintained by the movable blades 46 of working contacts until the insulating pins 27 arms 25 corresponding to the movable blades of the contacts rest abut on the underside of the branch the cylinder head 11, which thus constitutes a common reference. So this is the height of these insulating pieces of the only movable blades with rest contact, which sets apart building a constant clearance h between the portion actuating pin 26 and the rest contact blade 46, as seen in Figure 2. The interval of the height h is called rest support and constitutes a reserve of wear. The action of the forces of mobile working blades persists on the mobile frame and defines the opening angle β of the pallet.

    Cependant, le mouvement de rappel de l'armature mobile n'est pas terminé. Il faut encore absorber l'énergie cinétique emmagasiné. La languette de rattrapage de jeu 31 en absorbe une partie. Par inertie, la masse d'armature mobile quitte l'extrémité 10 de la branche de culasse 11. L'axe de rotation est transféré des éléments de matriçages de la palette, c'est-à-dire de la nervure d'articulation 36 et des ergots 37 aux pions 27 des contacts de repos. Suite aux couples de rappel de la languette de rattrapage de jeu 31 et des lames mobiles de travail 46, la palette rebondit et retrouve son axe de pivotement et son angle de départ lors de ce pivotement inverse. Le rebond est étouffé par les deux antirémanents détendus 13 et les lames mobiles de travail.However, the return movement of the movable frame is not finished. We still have to absorb the energy kinetics stored. The game take-up tab 31 absorbs part of it. By inertia, the mass of movable armature leaves the end 10 of the branch of cylinder head 11. The axis of rotation is transferred from the elements forging of the pallet, i.e. the rib articulation 36 and pins 37 to pins 27 of rest contacts. Following the recall couples of the take-up tongue 31 and movable blades of work 46, the pallet bounces and finds its axis of pivot and its starting angle during this pivot reverse. The rebound is stifled by the two antiremants relaxed 13 and movable working blades.

    Il ressort de la description de la structure du relais à réponse rapide selon l'invention et de la description des caractéristiques de fonctionnement, qui vient d'être faite, que le relais selon l'invention présente de nombreux avantages. Grâce à l'invention, le temps de réponse pourrait être de 6 msec à l'action comme au relâchement sur toute une plage de tensions d'utilisation pouvant aller de 0,8 à 1,1 fois la tension nominale et dans toute la plage de températures de -10°C à 55°C définie dans les normes. Ce temps de réponse est pratiquement indépendant de la position du relais et les performances sont tenues dans tous les types de combinaisons de contacts. Les combinaisons de contact séparées permettent d'économiser, par rapport au relais standard avec contacts inverseurs, 50% des contacts fixes et des pièces annexes. Le volume du relais, notamment sa surface de base est réduite. Le relais présente une excellente tenue aux chocs et vibrations. Concernant la maintenance, un changement de socle pour nettoyer ou remplacer les contacts par paires est aisé à effectuer et peut être accompli sans déréglage. La durée de vie et la stabilité sont améliorées par le capot qui, par sa plaque perforée, fait que la condensation des vapeurs nocives ait lieu sur la surface inférieure de cette plaquette et préservant ainsi les résistances des contacts électriques, et assure l'évacuation de la chaleur et des gaz dégagés par les matières plastiques. Un autre avantage réside dans la simplicité du réglage sans outillage sophistiqué par des cales 63 des accompagnements indiqués sur la figure 10 et des entregrains des contacts. La simultanéité des contacts est assurée grâce à la référence commune et interne au relais, que constitue la branche de culasse 11.It appears from the description of the relay structure at quick response according to the invention and description of operating characteristics, which has just been made, that the relay according to the invention has many advantages. Thanks to the invention, the time of response could be 6 msec to action as at release over a range of operating voltages ranging from 0.8 to 1.1 times the nominal voltage and throughout the temperature range from -10 ° C to 55 ° C defined in the standards. This response time is practically independent of the relay position and the performances are held in all types of combinations of contacts. Contact combinations separate save on relays standard with changeover contacts, 50% of fixed contacts and related documents. The volume of the relay, especially its base area is reduced. The relay presents a excellent shock and vibration resistance. About the maintenance, a change of base to clean or replacing the contacts in pairs is easy to perform and can be accomplished without adjustment. The service life and stability are improved by the hood which, by its plate perforated, causes condensation of harmful vapors takes place on the bottom surface of this wafer and thus preserving the resistances of the contacts electric, and ensures the evacuation of heat and gases released by plastics. Another advantage lies in the simplicity of the adjustment without sophisticated tooling with shims 63 of accompaniments indicated in figure 10 and contact centers. The simultaneity of contacts is ensured thanks to the common and internal reference to relay, which constitutes the breech branch 11.

    On comprend que l'armature mobile le socle isolant et le capot contribuent à procurer ces avantages.It is understood that the movable armature the insulating base and the hood help provide these benefits.

    Concernant l'armature mobile, on constate que les deux antirémanents de détente 13 ont la quadruple fonction d'agir comme antirémanent pour stabiliser la tension de retombée par leur épaisseur, de servir d'amortisseur à l'action et au relâchement, de remplir le rôle de "lanceur" de la palette au relâchement pour vaincre l'inertie de l'armature mobile et de définir, par la double surépaisseur aux extrémités de la palette parfaitement l'axe de pivotement de l'armature mobile. Les antirémanents sont significatifs par leur matière amagnétique, leur épaisseur, leur galbe orienté vers le noyau, leur montage en semi-liberté, c'est-à-dire sans fixation rigide, leur "mise à plat" à l'action, circonscrite au seul diamètre du noyau correspondant et où la partie latérale "épargnée" garde la "mémoire" élastique au montage. Le module d'élasticité de ces antirémanents est adapté aux ampèrestours de maintien et à l'entrefer principal, c'est-à-dire à l'angle β de départ de la palette.Regarding the movable frame, we see that the two anti-retentive 13 have quadruple function to act as an anti-remanent to stabilize the tension of dropped by their thickness, to serve as a shock absorber action and release, to fulfill the role of "launcher" of the pallet at release to overcome the inertia of the movable frame and define, by the double allowance at the ends of the pallet the pivot axis of the movable frame. Antiremantines are significant by their material non-magnetic, their thickness, their curve oriented towards the nucleus, their assembly in semi-freedom, that is to say without rigid fixing, their "flattening" to action, circumscribed only by the diameter of the corresponding core and where the "spared" side part keeps the "memory" elastic during assembly. The modulus of elasticity of these anti-retentive is suitable for holding amps and at the main air gap, i.e. at the angle β of departure from the palette.

    Les languettes de rattrapage de jeu 31 dont au moins une doit être prévu ont la triple fonction de limiter le déplacement au repos de l'armature mobile, de jouer le rôle de rondelles dont le trou 33 à l'extrémité libre permet de les immobiliser en rotation au moment de la fixation des équerres de réglage 22 sur la palette, ce qui est indispensable pour assurer la simultanéité des contacts, et de se conformer à la première fermeture de la palette en prenant appui sur la butée du socle et de canaliser ensuite les vibrations générées par l'armature mobile au relâchement vers le socle en thermoplastique. Le module d'élasticité de la palette doit être choisi assez bas, de façon correspondante.The play take-up tabs 31 of which at least one must be provided have the triple function of limiting the moving the movable armature at rest, playing the role of washers including hole 33 at the free end allows to immobilize them in rotation at the time of fixing the adjustment brackets 22 on the pallet, this which is essential to ensure the simultaneity of contacts, and to comply with the first closing of the pallet by resting on the stop of the base and then channel the vibrations generated by the armature movable when released towards the thermoplastic base. The modulus of elasticity of the pallet must be chosen fairly low, correspondingly.

    Les équerres de réglage, rigides avec la paire de pions thermoplastiques surmoulés, sont fondamentales pour l'amortissement, la cinématique des contacts et des combinaisons de contacts. Ils présentent les particularités de permettre un réglage en hauteur par paires de contacts, d'accomplir la double fonction d'entraínement des lames mobiles et de butée de réglage sur un plan commun formé par la culasse. L'invention permet un blocage lors de la fixation de chaque équerre, ce qui préserve la simultanéité des contacts. Le réglage permet d'effacer les dispersions des tolérances et toutes les combinaisons de contacts par décalage des équerres dans une plage de non-chevauchement minimum. Les équerres fixent l'angle d'ouverture constant de la palette et définissent les accompagnements de travail et de repos. Elles garantissent les distances entre les contacts fixes et mobiles, c'est-à-dire normalement ouverts et normalement fermés. Elles permettent un contrôle simple des relais terminés par l'introduction d'une paire de cales appropriées entre la branche de culasse 11 et les pions 27 de tous les contacts pour assurer les accompagnements repos et travail et les entregrains. Adjustment brackets, rigid with the pair of pins molded thermoplastics, are fundamental for damping, kinematics of contacts and combinations of contacts. They present the peculiarities of allowing height adjustment by pairs of contacts, to accomplish the dual function for moving blades and adjustment stop on a common plane formed by the breech. The invention allows a blocking during the fixing of each bracket, which preserves the simultaneity of the contacts. Adjustment allows to clear the dispersion of tolerances and all combinations of contacts by offset of the brackets within a minimum non-overlap range. The brackets set the constant opening angle of the pallet and define work and rest support. They guarantee the distances between the fixed contacts and mobile, i.e. normally open and normally closed. They allow simple control relays ended with the introduction of a pair of suitable shims between the breech leg 11 and the pawns 27 of all contacts to ensure rest and work accompaniments and midsize.

    Concernant le socle et le dispositifs de contacts, on constate que les lames mobiles appartiennent au socle et ce sont les lames de travail qui assurent en permanence le rappel de la palette, sans adjonction d'un ressort parasite et son jeu de l'armature mobile. La solution des contacts séparés permet également d'économiser 50% des contacts fixes. Cet avantage s'accompagne de la récupération des accompagnements correspondants, donc d'une réduction de l'angle β de débattement de la palette. En effet, cet angle est réduit à peu près de moitié et les accompagnements et entregrains voisins sont réduits tout en maintenant identiques les pouvoirs de manoeuvres. Ceci permet d'accroítre de 40% la force des contacts de repos et de diminuer la course de 50%, ce qui contribue à augmenter la rapidité de la réponse du relais selon l'invention.Regarding the base and the contact devices, we finds that the movable blades belong to the base and these are the working blades which permanently ensure recall of the pallet, without adding a spring parasite and its moving armature play. The solution of separate contacts also saves 50% of fixed contacts. This advantage is accompanied by the recovery of the corresponding accompaniments, therefore a reduction in the angle of travel β of the palette. Indeed, this angle is reduced approximately half and the neighboring accompaniments and entregrains are reduced while keeping the powers of maneuvers. This allows to increase by 40% the strength of rest contacts and decrease the stroke by 50%, which contributes to increasing the speed of the relay response according to the invention.

    Claims (20)

    Relais du type comportant une culasse en forme d'un L, fixée sur un socle isolant et dont une branche porte au moins un noyau porteur d'une bobine générateur d'un flux magnétique lorsqu'elle est parcourue par un courant électrique d'excitation, une armature montée pivotante sur l'extrémité de l'autre branche de la culasse entre une position d'application contre la face frontale du noyau, avec interposition d'un élément antirémanent, et une position de repos écartée de celle-ci, et porteuse avantageusement d'une pluralité de bras d'actionnement de lames mobiles fixées à une extrémité dans le socle et dont l'autre porte un élément de contact mobile destiné à coopérer avec un élément de contact fixe, caractérisé en ce que l'élément antirémanent (13) est réalisé sous forme d'une plaquette en un matériau élastiquement déformable lors de l'application de l'armature (2) contre la face frontale (12) du noyau (6) de façon à constituer un moyen de rappel de l'armature (9) dans sa position écartée.Relay of the type comprising an L-shaped cylinder head, fixed on an insulating base and one branch of which carries minus a core carrying a flux generating coil magnetic when a current flows through it electric excitation, a pivotally mounted armature on the end of the other branch of the bolt between an application position against the front face of the core, with the interposition of an antirement element, and a rest position away from it, and carrier advantageously of a plurality of actuating arms of movable blades fixed at one end in the base and the other of which carries a movable contact element intended for cooperate with a fixed contact element, characterized in that the anti-persistence element (13) is produced in the form a plate of an elastically deformable material when applying the reinforcement (2) against the face front (12) of the core (6) so as to constitute a means to return the armature (9) to its separated position. Relais selon la revendication 1, caractérisé en ce que la culasse (2) porte deux noyaux parallèles (6) qui coopèrent avec une seule armature mobile (9) et dont les bobines (7) sont montées en série de façon que les faces frontales libres (12) des noyaux puissent constituer des pôles magnétiques différentes.Relay according to claim 1, characterized in that the cylinder head (2) carries two parallel cores (6) which cooperate with a single movable frame (9) and whose coils (7) are mounted in series so that the faces free frontal (12) cores can constitute different magnetic poles. Relais selon l'une des revendications 1 ou 2, caractérisé en ce que le dispositif générateur de courant d'excitation du relais comporte des moyens (C1) assurant un temps de réponse court à l'excitation et au relâchement du relais par suralimentation du relais dans un premier temps à l'aide d'un courant élevé, suivi d'un courant plus faible de maintien du relais. Relay according to one of claims 1 or 2, characterized in that the current generating device excitation of the relay comprises means (C1) ensuring short response time to excitement and Releasing the relay by overloading the relay in first using a high current, followed by a lower relay holding current. Relais selon la revendication 3, caractérisé en ce que le dispositif générateur du courant d'excitation comporte, en série avec les bobines (7) un montage en parallèle d'une résistance (R1) de détermination du courant de montée et d'un condensateur (C1).Relay according to claim 3, characterized in that the excitation current generating device comprises, in series with the coils (7), a mounting in parallel of a resistance (R1) for determining the rising current and a capacitor (C1). Relais selon l'une des revendications précédentes et dont l'armature mobile comporte une partie formant palette pivotante coopérant avec les noyaux et un certain nombre de bras précités de commande de contacts électriques du relais, caractérisé en ce que l'élément antirémanent (13) interposé entre la face frontale libre (12) d'un noyau (6) et la palette (21) est formée par une plaquette qui est pliée le long d'une ligne de pliage (40) s'étendant parallèlement à l'axe de pivotement de la palette et est disposée sur la face interne de celle-ci de façon que la partie se trouvant entre la face frontale de noyau (12) et la palette soit cambrée en direction de cette face lorsque la palette occupe sa position écartée tandis que la partie sous la ligne de pliage (40) est retenue sur la face interne de la palette.Relay according to one of the preceding claims and the movable frame of which comprises a part forming swivel pallet cooperating with the cores and a certain number of aforementioned contact control arms electrical of the relay, characterized in that the element anti-remanent (13) interposed between the free front face (12) of a core (6) and the pallet (21) is formed by a wafer which is folded along a fold line (40) extending parallel to the pivot axis of the pallet and is arranged on the internal face thereof so that the part between the front face core (12) and the pallet is bent towards this face when the pallet occupies its separated position while the part under the fold line (40) is retained on the internal face of the pallet. Relais selon la revendication 5, caractérisé en ce que la partie située sous la ligne de pliage (40) est retenue sur la face interne de la palette par des moyens de retenue permettant un certain jeu perpendiculaire à cette face.Relay according to claim 5, characterized in that the part located under the fold line (40) is retained on the internal face of the pallet by means of restraint allowing a certain play perpendicular to this face. Relais selon la revendication 6, caractérisé en ce que les moyens de retenue sont formés par des éléments (37) en saillie de la face interne de la palette (21) et des trous (41) percés à travers la plaquette, les éléments en saillie s'étendant à travers ces trous, avec un certain jeu. Relay according to claim 6, characterized in that the retaining means are formed by elements (37) projecting from the internal face of the pallet (21) and holes (41) drilled through the plate, the elements projection extending through these holes, with a certain Game. Relais selon la revendication 7, caractérisé en ce que chaque plaquette d'antirémanent (13) est disposée de façon excentrée latéralement vers l'extérieur entre le noyau (6) correspondant et la palette pivotant (21) de façon que lors de l'application de la palette (21) contre la face frontale (12) du noyau(6), une partie latérale de la plaquette (13) reste sensiblement non déformée.Relay according to claim 7, characterized in that each anti-persistence plate (13) is arranged eccentrically laterally outward between the corresponding core (6) and the pivoting pallet (21) of so that when the pallet (21) is applied against the front face (12) of the core (6), a lateral part of the plate (13) remains substantially non-deformed. Relais selon l'une des revendications précédentes, caractérisé en ce qu'il comporte au moins une languette de rattrapage de jeu (31) en un matériau amagnétique à module d'élasticité bas interposé entre l'armature mobile (9) et le socle (15).Relay according to one of the preceding claims, characterized in that it comprises at least one tongue for taking up play (31) in a non-magnetic material low elastic modulus interposed between the movable reinforcement (9) and the base (15). Relais selon la revendication 8, caractérisé en ce qu'un bras de commande de contact électrique (25) constitue une branche d'une équerre (22) montée déplaçable perpendiculairement à l'axe de pivotement (10) de la palette (21) sur la face externe de celle-ci et en ce que la languette de rattrapage de jeu (31) constitue un moyen de blocage de la vis de fixation (24) de l'équerre sur la palette, une extrémité de la languette étant traversée par la vis (24) tandis que l'autre extrémité libre (32) prend appui sur le socle et est percée d'un trou d'immobilisation (33) de l'équerre lors du réglage.Relay according to claim 8, characterized in that an electrical contact control arm (25) constitutes a branch of a square (22) mounted movable perpendicular to the pivot axis (10) of the pallet (21) on the external face thereof and what the play take-up tab (31) constitutes a means for locking the fixing screw (24) of the square on the pallet, one end of the tongue being crossed by the screw (24) while the other free end (32) is supported on the base and is drilling a immobilization hole (33) in the bracket during of the setting. Relais selon une des revendications 9 ou 10, caractérisé en ce qu'il comporte des moyens amortisseurs et d'étouffements de vibrations à l'excitation et au relâchement du relais, qui sont formés par l'élément antirémanent (13) et la languette de rattrapage de jeu (31).Relay according to one of claims 9 or 10, characterized in that it comprises damping means and choking vibrations on excitement and release of the relay, which are formed by the element anti-remanent (13) and the play take-up tab (31). Relais selon l'une des revendications 1 à 11, caractérisé en ce qu'un bras de commande (25) porte à son extrémité libre un pion comportant une portion de pion de commande (26) et une portion de pion de butée (27) qui prend appui sous la culasse quand le bras commande un contact de repos.Relay according to one of Claims 1 to 11, characterized in that a control arm (25) carries to its free end a pawn with a pawn portion of control (26) and a portion of stop pin (27) which is supported under the breech when the arm controls a rest contact. Relais selon la revendication 12, caractérisé en ce que chaque bras (25) entraine en pivotement une lame mobile (46) porteuse d'un élément de contact mobile (48, 48') coopérant avec un élément de contact (49, 49') monté fixe dans le socle (15).Relay according to claim 12, characterized in that that each arm (25) pivotally drives a blade mobile (46) carrying a mobile contact element (48, 48 ') cooperating with a contact element (49, 49') mounted fixed in the base (15). Relais selon la revendication 13, caractérisé en ce que les lames souples (46) constituent des moyens de rappel de l'armature mobile (2) dans sa position de repos écarté.Relay according to claim 13, characterized in that that the flexible blades (46) constitute means of return of the movable armature (2) to its rest position dismissed. Relais selon l'une des revendications précédentes, caractérisé en ce qu'il comporte un capot (1) dont la paroi supérieure est réalisée sous forme d'une plaque (56) perméable à l'air et au gaz produits par dégazage des matières plastiques du relais et dont la face interne (57) constitue une face de condensation des vapeurs d'acide nitrique produit à l'intérieur du capot en présence d'humidité par les arcs électriques entre les éléments de contact.Relay according to one of the preceding claims, characterized in that it comprises a cover (1), the upper wall is made in the form of a plate (56) permeable to air and gas produced by degassing plastics of the relay and whose internal face (57) constitutes a vapor condensation face nitric acid produced inside the hood in presence of moisture by electric arcs between contact elements. Relais selon la revendication 15, caractérisé en ce que la plaque (56) est formée par une plaque perforée dont la face inférieure est recouverte d'une couche en cuivre à la manière d'un circuit imprimé.Relay according to claim 15, characterized in that the plate (56) is formed by a perforated plate the underside of which is covered with a layer of copper like a printed circuit. Relais selon la revendication 16, caractérisé en ce qu'un trou de perforation (58) a un diamètre maximum de 0,9 mm et un pas de 2,54 mm. Relay according to claim 16, characterized in that that a punch hole (58) has a maximum diameter of 0.9 mm and a pitch of 2.54 mm. Relais selon la revendication 15, caractérisé en ce que la plaquette précitée est réalisée en un feuillard métallique obtenu par électrodéposition ou en toile métallique.Relay according to claim 15, characterized in that the aforementioned plate is produced in a strip metallic obtained by electrodeposition or canvas metallic. Relais selon la revendication 18, caractérisé en ce que l'électrodéposition est faite en un matériau tel que du nickel-cobalt ayant un diamètre de trous de quelques µm et un pas de 50 µm.Relay according to claim 18, characterized in that that the plating is made of a material such as nickel-cobalt with a hole diameter of a few µm and a step of 50 µm. Relais selon l'une des revendications 15 à 19, caractérisé en ce que le capot (1) comprend à sa base des évents d'aération (63).Relay according to one of claims 15 to 19, characterized in that the cover (1) comprises, at its base, air vents (63).
    EP20000400292 1999-02-04 2000-02-03 Relay with an L-shaped yoke and an armature that pivots on the edge of an arm of said yoke Expired - Lifetime EP1026717B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9901310 1999-02-04
    FR9901310A FR2789513B1 (en) 1999-02-04 1999-02-04 RELAY OF THE CYLINDER-TYPE HEAD TYPE AND WITH MOBILE FRAME PIVOTING MOUNT ON THE EDGE OF A HEAD BRANCH

    Publications (2)

    Publication Number Publication Date
    EP1026717A1 true EP1026717A1 (en) 2000-08-09
    EP1026717B1 EP1026717B1 (en) 2006-01-11

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    EP20000400292 Expired - Lifetime EP1026717B1 (en) 1999-02-04 2000-02-03 Relay with an L-shaped yoke and an armature that pivots on the edge of an arm of said yoke

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    EP (1) EP1026717B1 (en)
    DE (2) DE1026717T1 (en)
    ES (1) ES2254113T3 (en)
    FR (1) FR2789513B1 (en)

    Cited By (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP1895560A2 (en) * 2006-08-28 2008-03-05 Omron Corporation Silent Electromagnetic Relay
    CN101894709A (en) * 2010-07-23 2010-11-24 沈阳铁路信号工厂 Magnetic circuit structure of electromagnetic relay with long pick-up time and short release time
    US9711313B2 (en) 2015-01-05 2017-07-18 Lsis Co., Ltd. Instant trip apparatus of molded case circuit breaker

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    US2471181A (en) * 1942-11-30 1949-05-24 Honeywell Regulator Co Relay
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    DE4218543A1 (en) * 1992-06-05 1993-12-09 Audi Ag Corrosion avoiding appts. for switch contact - has connection outside housing having thermally conductive part which rises into housing

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    Publication number Priority date Publication date Assignee Title
    DE345275C (en) * 1920-06-27 1921-12-09 Siemens & Halske Akt Ges Relay that operates on alternating current or pulsating direct current
    US2471181A (en) * 1942-11-30 1949-05-24 Honeywell Regulator Co Relay
    FR61631E (en) * 1951-04-20 1955-05-16 Materiel Telephonique Electromagnetic relays such as those used in telecommunications and remote controls
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    BE677360A (en) * 1965-03-06 1966-08-01
    AT299328B (en) * 1970-01-14 1972-06-12 Itt Austria Circuit arrangement for current control of electromagnetic devices, in particular small relays
    US4427863A (en) * 1982-03-22 1984-01-24 Izumi Denki Corporation Small-sized relay and method for fabricating the same
    DE4218543A1 (en) * 1992-06-05 1993-12-09 Audi Ag Corrosion avoiding appts. for switch contact - has connection outside housing having thermally conductive part which rises into housing

    Cited By (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP1895560A2 (en) * 2006-08-28 2008-03-05 Omron Corporation Silent Electromagnetic Relay
    EP1895560A3 (en) * 2006-08-28 2008-04-09 Omron Corporation Silent Electromagnetic Relay
    US7932795B2 (en) 2006-08-28 2011-04-26 Omron Corporation Silent electromagnetic relay
    CN101894709A (en) * 2010-07-23 2010-11-24 沈阳铁路信号工厂 Magnetic circuit structure of electromagnetic relay with long pick-up time and short release time
    US9711313B2 (en) 2015-01-05 2017-07-18 Lsis Co., Ltd. Instant trip apparatus of molded case circuit breaker

    Also Published As

    Publication number Publication date
    ES2254113T3 (en) 2006-06-16
    DE1026717T1 (en) 2001-09-06
    EP1026717B1 (en) 2006-01-11
    FR2789513B1 (en) 2003-06-06
    DE60025454D1 (en) 2006-04-06
    FR2789513A1 (en) 2000-08-11
    DE60025454T2 (en) 2006-08-17

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