EP1703533B1 - Anzeigesystem für magnetische Fehler - Google Patents

Anzeigesystem für magnetische Fehler Download PDF

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Publication number
EP1703533B1
EP1703533B1 EP06360007A EP06360007A EP1703533B1 EP 1703533 B1 EP1703533 B1 EP 1703533B1 EP 06360007 A EP06360007 A EP 06360007A EP 06360007 A EP06360007 A EP 06360007A EP 1703533 B1 EP1703533 B1 EP 1703533B1
Authority
EP
European Patent Office
Prior art keywords
drum
magnetic
lever
circuit
indicating system
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.)
Not-in-force
Application number
EP06360007A
Other languages
English (en)
French (fr)
Other versions
EP1703533A2 (de
EP1703533A3 (de
Inventor
Thierry Lienhardt
Gérard Blaess
Régis Filippi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hager Electro SAS
Original Assignee
Hager Electro SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hager Electro SAS filed Critical Hager Electro SAS
Publication of EP1703533A2 publication Critical patent/EP1703533A2/de
Publication of EP1703533A3 publication Critical patent/EP1703533A3/de
Application granted granted Critical
Publication of EP1703533B1 publication Critical patent/EP1703533B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures
    • 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
    • H01H71/04—Means for indicating condition of the switching device

Definitions

  • the present invention relates to a magnetic fault indicator system integrated into a modular electrical appliance, for example of the circuit-breaker type, comprising a magnetic actuator acting on a mechanical release lock designed to move a movable contact away from a fixed contact in the event of a short-circuit. circuit in the line protected by the device.
  • This function does not currently exist on such devices.
  • triggering occurs, it can be caused either by an overload on the line, which causes the lock to tilt by actuation of a thermal device (usually a bimetallic strip).
  • a thermal device usually a bimetallic strip.
  • the bimetal undergoes a deflection of its free end, which acts on the magnetic lock to trigger it.
  • the magnetic actuator is implemented to cause the tilting of the lock.
  • This actuator consists essentially of a coil cooperating with a mechanical circuit, a movable portion of which is capable of triggering said lock, for example via a striker secured to said movable part.
  • the movement of the lock causes a tilting of the control lever accessible on the front of these modular devices, and which allows to close and open manually the fixed and mobile contacts.
  • the position of the joystick which reflects the opening of said contacts. It can not deduce the nature of the defect, magnetic or thermal, which caused the opening of the contacts inside the device.
  • the origin of the problem on the line is therefore not known: it may be a wiring fault or design that caused a short circuit, or a simple overload on the line.
  • the present invention aims to remedy this deficiency, by proposing a magnetic fault indicator system integrated into the modular electrical device, and which immediately shows if the problem occurred in the line is due to a short circuit or not.
  • EP-A-0 997 922 discloses a magnetic fault indicator system integrated into a modular electrical apparatus according to the preamble of claim 1.
  • the new function provided by the invention therefore requires the addition of specific components establishing a mechanical double bond with the magnetic actuator on the one hand and the manual control lever on the other hand.
  • This double link makes it possible to position the signaling member to indicate the magnetic fault, and its reset by the joystick when the contacts are closed again.
  • the main part of the system of the invention is a rotary drum guided in the housing between two stable positions, moved in one direction by a lever whose distal end of the drum is driven by the movable part of the magnetic circuit, and endowed with an elastic blade oriented radially outwardly to cooperate with a cam protruding from the barrel of the lever to drive it in the opposite direction and for a stroke of the same length during its resetting stroke.
  • the mechanical links with the magnetic circuit and the joystick are of course independent, although they transform the movements of these elements in two equal movements and in the opposite direction of the rotating drum.
  • the connecting lever to the magnetic actuator is secured, at its end cooperating with the drum, to a rotating ring freely within the latter with respect to the same axis of rotation, the lever then passing through the wall of the drum by a window defining an angular sector such that when the drum is in its second position, the lever can be driven by the return of the moving part of the magnetic circuit without moving the drum.
  • the signaling member In order for the system of the invention to fulfill its informative function correctly, it is indeed necessary for the signaling member to remain in its position, after a short circuit, even when the moving part of the magnetic circuit immediately returns to its position. rest, to which it is solicited by return means.
  • the drum must therefore remain motionless.
  • the goal is that, no matter when the user comes to the device that has triggered (before its reclosing by the joystick), it must be able to visualize the nature of the fault, indicated by the signaling member . It should be noted that when the device trips and no magnetic fault is signaled by the signaling member, it can be considered as signaling by default an overload problem on the line.
  • the return stroke of the drum driven by the integral cam of the control lever, must of course scan in opposite directions an angular sector of length equal to the return stroke of the lever, in order to reset the relative position drum / the sink.
  • the magnetic actuator or subassembly consists of a solenoidal coil equipped with a magnetic yoke and surrounding two cylindrical cores respectively fixed and movable.
  • the end of the distal lever of the drum may for example take the form of a fork intended to be housed in an annular groove of a portion of the cylindrical movable core protruding from the solenoid coil.
  • the fork whose thickness is then predicted to be less than the width of the annular groove, makes it possible to transform the rectilinear movement of the movable core into a rotary movement of the lever.
  • the movement of the lever has no influence on the hand control lever.
  • the cooperation between the drum and said lever is via the elastic blade.
  • the latter is elastic at least in a direction parallel to the rotation axis of the drum, and the cam protruding from the shaft of the joystick has a profile and a positioning relative to the barrel such that when the lever is moved in case of opening of the contacts, it meets and exceeds during its rotary path the blade which flexes elastically and is released and returns to its initial position, then that it is driven by the cam in a race of length equal to that of the lever when the handle is actuated in the opposite direction for the rearming of the apparatus.
  • the cam has a profile successively comprising, in a trigonometric direction, an inclined plane and a parallel shoulder parallel to the axis of rotation of the joystick.
  • the function of the elastic blade / cam torque is therefore exclusively aimed at resetting the positioning of the drum when the device is reset.
  • the signaling member is positioned corollary so that the user, by visualizing the front of the product, can conclude that there is no fault in the circuit, since the lever is in position. contact closure on the one hand, and that no magnetic fault is also reported.
  • this signaling member consists of an outer arm integral with the drum, positioned so that when the latter is in the second position, for example a colored surface provided at the free end of the arm is placed in front of the window of the camera body.
  • the signaling member is not directly disposed in front of the window, because a light guide of transparent plastic material is interposed between said surface and the window.
  • Such a light guide is, in a manner known per se, for example consisting of transparent polycarbonate.
  • the window cooperating with the signaling member is preferably made in the front of the housing.
  • the drum or more generally the moving part of the system of the invention, has been defined as being able to take two stable positions respectively reflecting the absence and the existence of magnetic defect.
  • the drum comprises an elastic protuberance whose free end cooperates with two hard points integral with the housing of the apparatus, with a view to stabilizing it in its first and second positions. .
  • said protuberance consists of an arm protruding radially from the drum, extended by an axially oriented rod developing in the direction of the housing, the free end of which can deform elastically in contact with two edges of a platform protruding from the bottom of the case, and constituting the hard points.
  • the invention relates not only to the indicator system which has been described so far, but also to modular electrical devices with a magnetic actuator for separating a movable contact from a fixed contact in the event of a short-circuit in the protected circuit. by these devices, and as they contain a magnetic fault indicator system as described previously.
  • the electrical apparatus illustrating the invention is in this case a circuit breaker whose operation, which is not the subject of the invention, is not described in detail in this text.
  • the handle (1) is in the closed position of the contacts (see figure 1 )
  • the movable core (3) is positioned relative to the coil (2) so that the striker (4) is in abutment in contact with the yoke (5) of the magnetic circuit.
  • the magnetic field created by the high current flowing in the coil (2) displaces the movable core (3) (see FIG. figure 2 ) so that the striker (4) deviates from the cylinder head (5), so as to trigger the magnetic lock (not shown), which tilts the control handle (1) in its open position of the contacts.
  • a rotary drum (6) is arranged between the control handle (1) and the magnetic actuator.
  • This drum (6) cooperates with a lever (7) (see representation in FIG. figure 5 ) establishing a mechanical connection with the end of the movable core (3).
  • This lever (7) is provided, at its end opposite to that which makes a connection with the movable core (3), a ring or ring (8) free in rotation relative to the same axis as that of the drum (6). and consisting of a trunnion protruding from the housing (B).
  • the ring (8) being housed inside the drum (6), a window (9) cutting an angular sector is provided in the wall of the drum (6).
  • the free end of the lever (7) is provided with a fork (10) intended to cooperate with an annular groove (11) formed in the movable core (3).
  • the shape and dimensioning of the lever (7), the fork (10) and the annular groove (11) allow a flexible mechanical connection between the lever (7) and the movable core (3). This connection is intended to pass to the lever (7) rotating rectilinear displacements of the movable core (3).
  • the drum (6) is also provided with an elastic blade (12) intended to cooperate with a cam (13) equipping the barrel of the control lever (1).
  • This blade (12) is elastic in the direction of the axis of rotation of the drum (6).
  • the cam (13) takes for example the form of an inclined plane (23) conferring a thickening in a trigonometric direction. It furthermore has an end surface (24) constituting a shoulder, towards the right of the figure 1 (see in particular figure 3 ).
  • the drum (6) further comprises an outer arm (14) whose end plane surface is for example coated with a color coding information.
  • This arm (14) is designed to be positioned in front of a window (15) formed in the housing (B), when the drum (6) is rotated by the lever (7) in the event of a short circuit.
  • a light guide (16), as it appears in figure 5 may be interposed between the end surface of the arm (14) and the window (15).
  • the colored surface equipping said end surface is placed in front of the surface (27) of the guide (16).
  • the drum (6) comprises an elastic protuberance (17) composed of a flexible strip of radial appearance (18) extended by an axially-oriented rod (19).
  • the free end (22) of said rod (19) cooperates with hard points (25, 26) configured on a platform (21) protruding from the bottom of the housing (B), to ensure the stability of the two resting positions of the drum (6), respectively marking the absence and the presence of a short circuit ( see the enlarged reserve of the figure 3 ).
  • the operation is as follows: in the absence of a short-circuit, when the circuit-breaker is operating in the line, the mobile core (3) is in the position shown in FIG. figure 1 , in abutment to the left of this figure.
  • the relative position of the drum (6) and the lever (7) is such that said lever (7) is substantially in contact with the axial-pitched edge (20) of the window (9).
  • This position is a stable position by cooperation of the elastic protuberance (17) with a hard point, materialized in this case by one of the edges (25) of the platform (21).
  • the new position of the drum (6), stable corresponds to a placement of the signal arm (14) in front of the window (15), or the light guide (16). A color for example yellow appears in said window (15), indicating the existence of the magnetic defect.
  • the coil (2) ceases to be powered and the movable core (3) returns to its initial position, which causes a reverse rotation of the lever (7). Given the existence of the window (9), this rotation of the lever (7) has no influence on the positioning of the drum (6) which remains in its second stable position.
  • the circuit-breaker is reset by manually moving the handle (1) towards its contact closure position, that of the figure 1 .
  • the cam (13) is then moved in the trigonometrical direction, and its terminal shoulder (24) pushes the elastic blade (12), causing rotation in the opposite direction of the drum (6) against the hard points (25, 26) encountered by the free end (22) of the protuberance (17).

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Switches With Compound Operations (AREA)

Claims (11)

  1. System zum Angeben magnetischer Defekte, das in eine modulare elektrische Vorrichtung, z.B. nach Art eines Trennschalters, integriert ist, umfassend ein magnetisches Stellglied, das auf einen mechanischen Auslöseverschluss einwirkt, der bereitgestellt wird, um im Falle eines Kurzschlusses auf der Leitung, die von der Vorrichtung geschützt wird, einen beweglichen Kontakt von einem feststehenden Kontakt zu entfernen, wobei das Stellglied im Wesentlichen eine Spule (2) umfasst, die mit einem Magnetkreis zusammenwirkt, von dem ein beweglicher Teil (3) in der Lage ist, den Verschluss auszulösen, der über einen Steuergriff (1) der Vorrichtung zurückgestellt werden kann, umfassend:
    - ein Teil (6), das zwischen einer ersten und einer zweiten stabilen Position beweglich ist, die jeweils das Nichtvorhandensein und das Vorhandensein eines magnetischen Defekts wiedergeben;
    - ein Teil (6), das mechanisch mit dem beweglichen Teil (3) des Magnetkreises verbunden ist, so dass es von diesem nur in der Verschlussrichtung des Kreises in die zweite Position desselben mitgenommen wird;
    - wobei das Teil (6) mechanisch mit dem Steuergriff (1) verbunden ist, so dass letzterer das Teil nur in der Rückstellrichtung des Verschlusses in seine erste Position mitnimmt;
    - wobei das Teil (6) ein Signalorgan (14) aufweist, das mit einem Fenster (15) zusammenwirkt, das in dem Gehäuse (B) eingerichtet ist;
    dadurch gekennzeichnet, dass das bewegliche Teil eine Drehtrommel (6) ist, die in dem Gehäuse (B) zwischen ihren beiden stabilen Positionen geführt wird, die in einer Richtung von einem Hebel (7) bewegt wird, wobei ein Distalende der Trommel (6) von dem beweglichen Teil (3) des Magnetkreises mitgenommen wird, und die mit einem elastischen Blatt (12) versehen ist, das radial nach außen orientiert ist, um mit einem Nocken (13) zusammenzuwirken, der über den Schaft des Griffs (1) vorsteht, um diesen in die entgegengesetzte Richtung und über eine gleich lange Hublänge während seines Rückstellhubs mitzunehmen.
  2. System zum Angeben magnetischer Defekte nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass der Hebel (7) an seinem Ende, das mit der Trommel (6) zusammenwirkt, mit einem Ring (8) fest verbunden ist, der sich darin im Verhältnis zu derselben Drehachse frei dreht, wobei der Hebel (7) über ein Fenster (9), das einen Winkelsektor begrenzt, durch die Wand der Trommel (6) geht, so dass, wenn sich die Trommel (6) in ihrer zweiten Position befindet, der Hebel (7) durch die Rückkehr des beweglichen Teils (3) des Magnetkreises mitgenommen werden kann, ohne die Trommel (6) zu bewegen.
  3. System zum Angeben magnetischer Defekte nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Distalende des Hebels (7) der Trommel (6) die Form einer Gabel (10) annimmt, die bereitgestellt wird, um in eine ringförmige Rille (11) eines Abschnitts eines beweglichen zylindrischen Kerns (3) eines Magnetkreises zu passen, von der Art, die eine Magnetspule (2) aufweist, die ein Paar koaxiale Kerne umgibt, die jeweils feststehend und beweglich sind, wobei der Abschnitt über die Spule (2) hinausragt.
  4. System zum Angeben magnetischer Defekte nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das radiale Blatt (12) mindestens in einer Richtung, die zur Drehachse der Trommel (6) parallel verläuft, elastisch ist, und der Nocken (13), der aus dem Schaft des Griffs (1) herausragt, ein Profil und eine Positionierung im Verhältnis zum Schaft aufweist, die derart sind, dass, wenn der Griff (1) bewegt wird, wenn die Kontakte geöffnet werden, er auf seiner Drehbahn auf das Blatt (12) trifft und darüber hinausragt, wobei sich das Blatt elastisch biegt, dann freigegeben wird und in seine anfängliche Position zurückkehrt, während es von dem Nocken (13) über eine Hublänge mitgenommen wird, die gleich lang ist wie die des Hebels (7), wenn der Griff (1) in die entgegengesetzte Richtung betätigt wird, um die Vorrichtung zurückzustellen.
  5. System zum Angeben magnetischer Defekte nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass der Nocken (13) ein Profil aufweist, das im Gegenuhrzeigersinn nacheinander eine schiefe Ebene (23) und eine Schulter (24) umfasst, die eine Form parallel zur Drehachse des Griffs (1) aufweist.
  6. System zum Angeben magnetischer Defekte nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Signalorgan aus einem äußeren Arm (14) besteht, der mit der Trommel (6) fest verbunden ist, der derart positioniert ist, dass, wenn sich letztere in der zweiten Position befindet, eine beispielsweise farbige Oberfläche, die an dem freien Ende des Arms bereitgestellt wird, gegenüber dem Fenster (15) des Gehäuses (B) der Vorrichtung angeordnet wird.
  7. System zum Angeben magnetischer Defekte nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass ein Lichtleiter (16) aus transparentem Kunststoffmaterial zwischen der Oberfläche und dem Fenster (15) eingeschoben ist.
  8. System zum Angeben magnetischer Defekte nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Fenster (15), das mit dem Signalorgan (14) zusammenwirkt, in der Vorderseite des Gehäuses (B) eingerichtet ist.
  9. System zum Angeben magnetischer Defekte nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Trommel (6) eine elastische Ausstülpung (17) umfasst, deren freies Ende (22) mit zwei Reibstellen (25, 26) zusammenwirkt, die mit dem Gehäuse (B) der Vorrichtung fest verbunden sind, um dieses in seiner ersten und zweiten Position zu stabilisieren.
  10. System zum Angeben magnetischer Defekte nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Ausstülpung (17) aus einem Arm (18) besteht, der radial aus der Trommel hervorragt, der durch eine Stange (19) verlängert wird, die eine axiale Form aufweist, die sich in Richtung auf das Gehäuse (B) entfaltet, deren freies Ende (22) sich bei Kontakt mit zwei Kanten (25, 26) einer Plattform (21), die aus dem Boden des Gehäuses (B) hervorragen und die Reibstellen bilden, elastisch verformen kann.
  11. Modulare elektrische Vorrichtung, umfassend ein magnetisches Stellglied zum Trennen eines beweglichen Kontaktes von einem feststehenden Kontakt im Falle eines Kurzschlusses in einer Schaltung, die von der Vorrichtung geschützt wird, dadurch gekennzeichnet, dass sie ein System zum Angeben magnetischer Defekte nach einem der vorhergehenden Ansprüche enthält.
EP06360007A 2005-03-15 2006-03-10 Anzeigesystem für magnetische Fehler Not-in-force EP1703533B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0502573A FR2883406B1 (fr) 2005-03-15 2005-03-15 Systeme indicateur de defaut magnetique

Publications (3)

Publication Number Publication Date
EP1703533A2 EP1703533A2 (de) 2006-09-20
EP1703533A3 EP1703533A3 (de) 2007-08-29
EP1703533B1 true EP1703533B1 (de) 2011-06-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06360007A Not-in-force EP1703533B1 (de) 2005-03-15 2006-03-10 Anzeigesystem für magnetische Fehler

Country Status (3)

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EP (1) EP1703533B1 (de)
AT (1) ATE511698T1 (de)
FR (1) FR2883406B1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2926923B1 (fr) * 2008-01-28 2010-03-26 Hager Electro Sas Systeme de signalisation d'un defaut electrique dans un appareil de coupure
WO2013114395A2 (en) 2012-01-20 2013-08-08 Larsen & Toubro Limited Short-circuit fault indicator device
EP2674954B1 (de) * 2012-06-11 2014-10-08 ABB Oy Stromschaltvorrichtung
CN104810218B (zh) * 2015-05-13 2017-01-04 贵州泰永长征技术股份有限公司 万能式断路器用组合式电磁脱扣装置
CA3032012A1 (en) 2016-08-05 2018-02-08 Leviton Manufacturing Co., Inc. Circuit breakers incorporating reset lockout mechanisms
US11610751B2 (en) 2019-12-09 2023-03-21 Leviton Manufacturing Co., Inc. Circuit breakers incorporating reset lockout mechanisms

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3313048C1 (de) * 1983-04-12 1984-09-20 Lindner Gmbh, Fabrik Elektrischer Lampen Und Apparate, 8600 Bamberg Leitungsschutzschalter in Schmalbauform mit Kurzschlußanzeiger
DE19849393A1 (de) * 1998-10-27 2000-05-04 Abb Patent Gmbh Schaltgerät mit einer Stellungs- oder Zustandsanzeige, insbesondere für einen Leitungsschutzschalter

Also Published As

Publication number Publication date
EP1703533A2 (de) 2006-09-20
EP1703533A3 (de) 2007-08-29
FR2883406B1 (fr) 2009-04-17
FR2883406A1 (fr) 2006-09-22
ATE511698T1 (de) 2011-06-15

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