EP0668602A1 - Adjustable current-limiting release for electrotechnic devices - Google Patents

Adjustable current-limiting release for electrotechnic devices Download PDF

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Publication number
EP0668602A1
EP0668602A1 EP95500013A EP95500013A EP0668602A1 EP 0668602 A1 EP0668602 A1 EP 0668602A1 EP 95500013 A EP95500013 A EP 95500013A EP 95500013 A EP95500013 A EP 95500013A EP 0668602 A1 EP0668602 A1 EP 0668602A1
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EP
European Patent Office
Prior art keywords
rod
spring
electrotechnical
head
current
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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.)
Withdrawn
Application number
EP95500013A
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German (de)
French (fr)
Inventor
Eva Munoz Omella
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Individual
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Individual
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Publication date
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Publication of EP0668602A1 publication Critical patent/EP0668602A1/en
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H01H71/7463—Adjusting only the electromagnetic mechanism
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
    • H01H69/01—Apparatus or processes for the manufacture of emergency protective devices for calibrating or setting of devices to function under predetermined conditions
    • H01H2069/016—Apparatus or processes for the manufacture of emergency protective devices for calibrating or setting of devices to function under predetermined conditions with single separate parts mountable or insertable in different orientations or positions, e.g. to obtain desired trip conditions

Definitions

  • the subject of the invention is, as its statement indicates, a regulator of the flow of current for electrotechnical devices having the function of limiting the passage of electric current in electrotechnical devices so that, if an increase in the intensity of the current which would exceed the limit or the critical point previously established, the triggering and consequently the actuation of the electrotechnical mechanism takes place, in the direction of opening of the established electrical circuit, thus avoiding the deterioration of the device or the electrical installation protected by the electrotechnical device.
  • the regulator for the electric current is formed by an adjustment rod which, at one of its ends, has a head in the form of a toothed wheel and, at the other end, begins a cut or diametrical groove which extends longitudinally to the proximity of the opposite end in the form of a toothed wheel; a spring which, by one end, is introduced and remains fixed in the longitudinal groove or cut of the adjustment rod, and its other end is extended in a straight branch and perpendicular to said rod; a box, provided in the carcass or body of the electrotechnical device, in which is housed the adjustment rod and the spring which it comprises, in this box is immobilized or blocked the rod-spring assembly, once the critical point has been established, or electric current limit; an extension, with end flange, of the movable or displaceable part of the electromagnet core which protrudes outside of it; and the other fixed part of the electromagnet core, with axial perforation in which is arranged a rod with thickening at one end which remains outside
  • Figure 1 shows, in perspective, the parts that form the current flow regulator for recommended electrotechnical devices.
  • Figure 2 shows, in plan and partial section, the entire regulator.
  • the current flow regulator for electrotechnical devices comprises a rod -1- which, at one end, widens in the form of a toothed wheel -2-, and at its end opposite a cutout or diametrical groove -3-, extending longitudinally to the proximity of the head -2-.
  • This rod -1- is connected to a spring -4-, which, by one end -5- remains retained in the groove -3-, while the turns of the spring -4- are wound on the rod -1- or , in other words, the rod -1- is threaded into the spring -4- after one of its ends -5- is arranged in the groove -3-, the other end of the spring -4- extending in a branch -6- straight and perpendicular to the stem -1-.
  • the rod -1- and spring -4- assembly is housed in a box -7- provided between the two parts forming the carcass or body which comprises the mechanism of the electrotechnical device, said box forming a hollow with toothed wall -16- in which is housed the toothed wheel head -2-, so that when this head -2- is controlled to set the critical trigger point, once established, it is introduced into this recess -16-, with what its subsequent manipulation is avoided.
  • the core of the electromagnet is divided into two cylindrical parts -8- and --- 9- the first of which is movable in the direction of longitudinal displacement, and one of its bases is axially extended by a stud -10- which ends in an end flange -11- on which rests the right end branch -6- of the spring --- 4- threaded by the regulating rod -1-, so that said end branch -6- prevents displacement of the part of the mobile core, as long as it does not exceed the limit or the critical point established by the regulator.
  • the fixed part -9- of the core of the electromagnet has, at one of its bases, an extension -12- also cylindrical, with axial perforation -13- right through which a rod is arranged --14 - with head -15-, which acts as striker of the actuating mechanism, for opening the electrical circuit of the electrotechnical device set.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The current trip device includes a spigot (1) with toothed wheel (2) which is placed at right angles to an electromagnet outer. The toothed wheel and spigot holder (3) are housed in a casing with a toothed section. The electromagnet has a cylindrical section and holds a piston (8) which is attached to a protruding section (6) of the spring. The spring is held in a housing (11). Current exceeding the set level allows a sharp piston movement, which hits against a piston insert (9), switching a percussion cap (15) and opening the electrical circuit.

Description

L'invention a pour objet, comme indique son énoncé, un régulateur du passage du courant pour des dispositifs électrotechniques ayant pour office de limiter le passage de courant électrique dans les dispositifs électrotechniques de sorte que, s'il se produit une augmentation de l'intensité du courant qui dépasserait la limite ou le point critique préalablement établi, le déclenchement et par conséquent l'actionnement du mécanisme électrotechnique a lieu, dans le sens d'ouverture du circuit électrique établi, en évitant ainsi la détérioration de l'appareil ou de l'installation électrique protégée par le dispositif électrotechnique.The subject of the invention is, as its statement indicates, a regulator of the flow of current for electrotechnical devices having the function of limiting the passage of electric current in electrotechnical devices so that, if an increase in the intensity of the current which would exceed the limit or the critical point previously established, the triggering and consequently the actuation of the electrotechnical mechanism takes place, in the direction of opening of the established electrical circuit, thus avoiding the deterioration of the device or the electrical installation protected by the electrotechnical device.

Conformément à l'invention, le régulateur pour le courant électrique est formé par une tige de réglage qui, à une de ses extrémités, a une tête en forme de roue dentée et, à l'autre extrémité, commence une découpure ou rainure diamétrale qui s'étend, longitudinalement, jusqu'à la proximité de l'extrémité opposée en forme de roue dentée; un ressort qui, par une extrémité, est introduit et reste fixé dans la rainure ou coupure longitudinale de la tige de réglage, et son autre extrémité se prolonge en une branche droite et perpendiculaire à ladite tige; une boîte, prévue dans la carcasse ou corps du dispositif électrotechnique, dans laquelle est logée la tige de réglage et le ressort qu'elle comporte, dans cette boîte est immobilisé ou bloqué l'ensemble tige-ressort, une fois établi le point critique ou limite de courant électrique; un prolongement, avec bride d'extrémité, de la partie mobile ou déplaçable du noyau de l'électro-aimant qui dépasse à l'extérieur de celui-ci; et l'autre partie fixe du noyau de l'électro-aimant, avec perforation axiale dans laquelle est agencée une tige avec épaississement à une extrémité qui reste à l'extérieur de l'électro-aimant.According to the invention, the regulator for the electric current is formed by an adjustment rod which, at one of its ends, has a head in the form of a toothed wheel and, at the other end, begins a cut or diametrical groove which extends longitudinally to the proximity of the opposite end in the form of a toothed wheel; a spring which, by one end, is introduced and remains fixed in the longitudinal groove or cut of the adjustment rod, and its other end is extended in a straight branch and perpendicular to said rod; a box, provided in the carcass or body of the electrotechnical device, in which is housed the adjustment rod and the spring which it comprises, in this box is immobilized or blocked the rod-spring assembly, once the critical point has been established, or electric current limit; an extension, with end flange, of the movable or displaceable part of the electromagnet core which protrudes outside of it; and the other fixed part of the electromagnet core, with axial perforation in which is arranged a rod with thickening at one end which remains outside the electromagnet.

Les pièces ou parties décrites forment l'ensemble du régulateur de passage de courant pour dispositifs électrotechniques préconisés, dont les formes et la constitution deviennent plus apparentes dans la description ci-après, dans laquelle, pour en faciliter la compréhension, il est fait référence à la page de dessins annexée, dans laquelle de façon plutôt schématique et seulement comme exemple, il est montré une mise en oeuvre pratique de l'invention.The parts or parts described form the whole of the current flow regulator for recommended electrotechnical devices, the shapes and construction of which become more apparent in the description below, in which, to facilitate understanding, reference is made to the attached drawing page, in which rather schematically and only as an example, there is shown a practical implementation of the invention.

Dans la page de dessins annexée:In the attached drawing page:

La figure 1 montre, en perspective, les pièces qui forment le régulateur de passage de courant pour dispositifs électrotechniques préconisés.Figure 1 shows, in perspective, the parts that form the current flow regulator for recommended electrotechnical devices.

La figure 2 montre, en plan et en coupe partielle, l'ensemble du régulateur.Figure 2 shows, in plan and partial section, the entire regulator.

Comme on peut apprécier dans les figures énumérées, le régulateur de passage de courant pour dispositifs électrotechniques comprend une tige -1- qui, à une extrémité, s'élargit en forme de roue dentée -2-, et à son extrémité opposée a une découpure ou rainure diamétrale -3-, se prolongeant longitudinalement jusqu'à la proximité de la tête -2-. Cette tige -1- est reliée à un ressort -4-, qui, par une extrémité -5- reste retenue dans la rainure -3-, tandis que les spires du ressort -4- s'enroulent sur la tige -1- ou, dans d'autres mots, la tige -1- est enfilée dans le ressort -4- après qu'une de ses extrémités -5- soit agencée dans la rainure -3-, l'autre extrémité du ressort -4- se prolongeant en une branche -6- droite et perpendiculaire à la tige -1-. L'ensemble tige -1- et ressort -4- est logé dans une boîte -7- prévue entre les deux parties formant la carcasse ou corps qui comporte le mécanisme du dispositif électrotechnique, ladite boîte conformant un creux à paroi dentée -16- dans laquelle est logée la tête en forme de roue dentée -2-, de sorte que, lorsque cette tête -2- est commandée pour régler le point critique de déclenchement, une fois établi, elle est introduite dans ce creux -16-, avec quoi sa manipulation ultérieure est évitée.As can be seen in the figures listed, the current flow regulator for electrotechnical devices comprises a rod -1- which, at one end, widens in the form of a toothed wheel -2-, and at its end opposite a cutout or diametrical groove -3-, extending longitudinally to the proximity of the head -2-. This rod -1- is connected to a spring -4-, which, by one end -5- remains retained in the groove -3-, while the turns of the spring -4- are wound on the rod -1- or , in other words, the rod -1- is threaded into the spring -4- after one of its ends -5- is arranged in the groove -3-, the other end of the spring -4- extending in a branch -6- straight and perpendicular to the stem -1-. The rod -1- and spring -4- assembly is housed in a box -7- provided between the two parts forming the carcass or body which comprises the mechanism of the electrotechnical device, said box forming a hollow with toothed wall -16- in which is housed the toothed wheel head -2-, so that when this head -2- is controlled to set the critical trigger point, once established, it is introduced into this recess -16-, with what its subsequent manipulation is avoided.

Le noyau de l'électro-aimant est divisé en deux parties cylindriques -8- et ---9- dont la première est mobile dans le sens de déplacement longitudinal, et d'une de ses bases se prolonge axialement un goujon -10- qui finit en une bride d'extrémité -11- sur laquelle s'appuie la branche d'extrémité droite -6- du ressort ---4- enfilé par la tige -1- de régulation, de sorte que ladite branche d'extrémité -6- empêche le déplacement de la partie du noyau mobile, tant qu'elle ne dépassera pas la limite ou le point critique établi par le régulateur. La partie fixe -9- du noyau de l'électro-aimant a, à une de ses bases, un prolongement -12- également cylindrique, avec perforation axiale -13- de part en part à travers laquelle est agencée une tige --14- à tête -15-, qui agit de percuteur du mécanisme d'actionnement, pour l'ouverture du circuit électrique du dispositif électrotechnique réglé.The core of the electromagnet is divided into two cylindrical parts -8- and --- 9- the first of which is movable in the direction of longitudinal displacement, and one of its bases is axially extended by a stud -10- which ends in an end flange -11- on which rests the right end branch -6- of the spring --- 4- threaded by the regulating rod -1-, so that said end branch -6- prevents displacement of the part of the mobile core, as long as it does not exceed the limit or the critical point established by the regulator. The fixed part -9- of the core of the electromagnet has, at one of its bases, an extension -12- also cylindrical, with axial perforation -13- right through which a rod is arranged --14 - with head -15-, which acts as striker of the actuating mechanism, for opening the electrical circuit of the electrotechnical device set.

Le montage des pièces formant ce régulateur de passage de courant étant décrit, son fonctionnement est le suivant: On agit sur la tige -1- dans le sens de vissage sur sa tête dentée -2-, jusqu'à tendre le ressort -4- dont l'extrémité droite ---6- retient la bride -11- jusqu'à la limite ou le point critique du passage de courant électrique par l'électro-aimant -17-, où la partie mobile du noyau -8- ne peut pas se déplacer, à l'intérieur de l'électro-aimant, car la branche droite d'extrémité -6- du ressort -4- qui s'appuie sur la bride d'extrémité -11- l'en empêche; à ce point critique du passage de courant la tête dentée -2- de la tige de réglage est pressée et elle est introduite dans le creux également denté -16- des deux pièces formant la carcasse du dispositif électrotechnique, afin d'empêcher sa manipulation ultérieure. Le régulateur étant dans cette position, si pour une circonstance quelconque il se produit une surintensité du courant qui dépasserait la limite ou le point critique établi, cela produira un déplacement brusque et rapide de la partie mobile -8- du noyau de l'électro-aimant --17-, jusqu'à heurter la partie fixe -9- dudit noyau, en faisant que la tige -14- du percuteur se déplace à son intérieur de sorte que la tête -15- de ladite tige -14-, actionne la pièce du mécanisme du dispositif électrotechnique qui détermine l'ouverture du circuit contrôlé par celui-ci.The assembly of the parts forming this current flow regulator having been described, its operation is as follows: One acts on the rod -1- in the screwing direction on its toothed head -2-, until the spring -4- is tensioned whose straight end --- 6- retains the flange -11- up to the limit or the critical point of the passage of electric current through the electromagnet -17-, where the mobile part of the core -8- does cannot move inside the electromagnet, because the straight end branch -6- of the spring -4- which is supported on the end flange -11- prevents it; at this critical point of the current flow the toothed head -2- of the adjustment rod is pressed and it is introduced into the hollow also toothed -16- of the two parts forming the carcass of the electrotechnical device, in order to prevent its subsequent manipulation . The regulator being in this position, if for any circumstance there occurs an overcurrent which would exceed the limit or the critical point established, this will produce a sudden and rapid displacement of the mobile part -8- of the core of the electro- magnet --17-, until it strikes the fixed part -9- of said core, causing the rod -14- of the striker to move inside it so that the head -15- of said rod -14- actuates the part of the mechanism of the electrotechnical device which determines the opening of the circuit controlled by it.

De la description qui précède et de la feuille de dessins annexée, on comprend bien la constitution et le fonctionnement du régulateur de passage de courant pour des dispositifs électrotechniques ainsi que les avantages qu'il offre par rapport à ceux déjà connus.From the foregoing description and from the attached drawing sheet, it is easy to understand the constitution and the operation of the current flow regulator for electrotechnical devices as well as the advantages which it offers compared to those already known.

Claims (2)

1.- Régulateur de passage de courant pour dispositifs électrotechniques, de sorte que si une augmentation de l'intensité du courant se produit qui dépasserait la limite ou le point critique établi auparavant, le déclenchement a lieu et par conséquent l'actionnement, dans le sens d'ouverture, du circuit contrôlé par le dispositif électrotechnique caractérisé en ce qu'il est formé par une tige -1- qui, à une de ses extrémités, conforme une tête -2- en forme de roue dentée et, à son extrémité opposée, elle a une découpure ou rainure diamétrale -3- qui s'étend longitudinalement par la tige -1- jusqu'à la proximité de la tête -2-, on introduit dans cette rainure l'extrémité -5- d'un ressort -4- qui reste enroulé sur la tige -1-, l'autre extrémité dudit ressort se prolongeant en une branche -6- droite et perpendiculaire à la tige -1-, l'ensemble formé par la tige -1- et le ressort -4- étant logé dans une boîte -7- prévue entre les deux parties qui forment le corps carcasse du dispositif électrotechnique, ladite boîte conformant un creux -16- à paroi dentée, dans lequel est introduite et logée la tête -2-, également dentée, de la tige -1- une fois établi à la limite le passage de courant au dispositif électrotechnique, pour éviter des manipulations ultérieures de ladite tige. 1.- Current flow regulator for electrotechnical devices, so that if an increase in current intensity occurs which exceeds the limit or critical point established previously, tripping takes place and therefore actuation, in the opening direction, of the circuit controlled by the electrotechnical device characterized in that it is formed by a rod -1- which, at one of its ends, conforms a head -2- in the form of a toothed wheel and, at its end opposite, it has a diametrical cutout or groove -3- which extends longitudinally by the rod -1- to the proximity of the head -2-, the end -5- of a spring is introduced into this groove -4- which remains wound on the rod -1-, the other end of said spring extending into a branch -6- straight and perpendicular to the rod -1-, the assembly formed by the rod -1- and the spring -4- being housed in a box -7- provided between the two parts which form nt the carcass body of the electrotechnical device, said box forming a hollow -16- with toothed wall, into which is inserted and housed the head -2-, also toothed, of the rod -1- once established at the limit the passage of current to the electrotechnical device, to avoid subsequent manipulations of said rod. 2.- Régulateur de passage de courant pour dispositifs électrotechniques, selon la revendication 1, caractérisé en ce que la branche d'extrémité droite -6- du ressort -4-, s'appuie sur une bride -11- où finit un prolongement -10- de la partie mobile --8- du noyau d'un électro-aimant -17-, en empêchant le déplacement de ladite partie du noyau tant qu'une élévation de l'intensité du courant ne se produira pas, qui dépasserait la limite établie par la tige de régulation -1-; lorsqu'une surintensité de courant a lieu cela produit le déplacement brusque et rapide de la partie mobile -8- du noyau vers la partie fixe -9- de celui-ci, ce qui fait que la tige -14- enfilée à cette partie fixe, se déclenche et sa tête -15- agit de percuteur du mécanisme d'actionnement du dispositif électrotechnique, dans le sens de l'ouverture du circuit réglé. 2.- Current flow regulator for electrotechnical devices, according to claim 1, characterized in that the straight end branch -6- of the spring -4-, is supported on a flange -11- where ends an extension - 10- of the moving part --8- of the core of an electromagnet -17-, by preventing the displacement of said part of the core as long as a rise in the intensity of the current does not occur, which would exceed the limit established by the control rod -1-; when an overcurrent occurs this produces the sudden and rapid displacement of the movable part -8- of the core towards the fixed part -9- thereof, so that the rod -14- threaded to this fixed part , is triggered and its head -15- acts as a striker of the actuating mechanism of the electrotechnical device, in the direction of opening of the adjusted circuit.
EP95500013A 1994-02-16 1995-02-10 Adjustable current-limiting release for electrotechnic devices Withdrawn EP0668602A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9400408U ES1027063Y (en) 1994-02-16 1994-02-16 REGULATOR OF PASSAGE OF CURRENT OF ELECTRICAL DEVICES.
ES9400408U 1994-02-16

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EP0668602A1 true EP0668602A1 (en) 1995-08-23

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EP95500013A Withdrawn EP0668602A1 (en) 1994-02-16 1995-02-10 Adjustable current-limiting release for electrotechnic devices

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19946206A1 (en) * 1999-09-27 2000-11-23 Siemens Ag Over-current release especially for power switch
WO2003094188A1 (en) * 2002-05-01 2003-11-13 Eaton Corporation Adjustable magnetic trip assembly for circuit breaker

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2505449A1 (en) * 1974-02-15 1975-08-21 Schrack Elektrizitaets Ag E Adjustable spring device for protective switches - has helical spring around bolt with angular position set by ratchet
FR2363180A1 (en) * 1976-08-23 1978-03-24 Felten & Guilleaume Ag Rapid tripping circuit breaker adjustment - has release spring with one end inserted in rack with grooves (OE 15.5.77)
US5162765A (en) * 1991-12-23 1992-11-10 North American Philips Corporation Adjustable magnetic tripping device and circuit breaker including such device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2505449A1 (en) * 1974-02-15 1975-08-21 Schrack Elektrizitaets Ag E Adjustable spring device for protective switches - has helical spring around bolt with angular position set by ratchet
FR2363180A1 (en) * 1976-08-23 1978-03-24 Felten & Guilleaume Ag Rapid tripping circuit breaker adjustment - has release spring with one end inserted in rack with grooves (OE 15.5.77)
US5162765A (en) * 1991-12-23 1992-11-10 North American Philips Corporation Adjustable magnetic tripping device and circuit breaker including such device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19946206A1 (en) * 1999-09-27 2000-11-23 Siemens Ag Over-current release especially for power switch
WO2003094188A1 (en) * 2002-05-01 2003-11-13 Eaton Corporation Adjustable magnetic trip assembly for circuit breaker

Also Published As

Publication number Publication date
ES1027063Y (en) 1995-01-16
ES1027063U (en) 1994-07-01

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