EP0780860A1 - Hilfsschalter für Ausschalter und entsprechender Ausschalter - Google Patents

Hilfsschalter für Ausschalter und entsprechender Ausschalter Download PDF

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Publication number
EP0780860A1
EP0780860A1 EP96402756A EP96402756A EP0780860A1 EP 0780860 A1 EP0780860 A1 EP 0780860A1 EP 96402756 A EP96402756 A EP 96402756A EP 96402756 A EP96402756 A EP 96402756A EP 0780860 A1 EP0780860 A1 EP 0780860A1
Authority
EP
European Patent Office
Prior art keywords
auxiliary switch
housing
section
control rod
switch according
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
EP96402756A
Other languages
English (en)
French (fr)
Other versions
EP0780860B1 (de
Inventor
Christian Combas
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.)
Legrand SA
Legrand SNC
Original Assignee
Legrand SA
Legrand SNC
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
Priority claimed from FR9515136A external-priority patent/FR2728383B1/fr
Application filed by Legrand SA, Legrand SNC filed Critical Legrand SA
Publication of EP0780860A1 publication Critical patent/EP0780860A1/de
Application granted granted Critical
Publication of EP0780860B1 publication Critical patent/EP0780860B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/54—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers
    • H01H85/545—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers with pivoting fuse carrier
    • 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
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
    • H01H71/462—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts housed in a separate casing, juxtaposed to and having the same general contour as the main casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/10—Adaptation for built-in fuses
    • H01H9/104—Adaptation for built-in fuses with interlocking mechanism between switch and fuse

Definitions

  • the present invention relates generally to circuit breakers.
  • a circuit breaker comprises, overall, in a housing, on the one hand, two contact members, which, established at a distance from each other, are each respectively in electrical connection with two connection terminals accessible from outside the housing, and, on the other hand, a fuse holder, frequently called “gripper", which has a recess specific to the housing of a fuse cartridge, and which, too, accessible to the user outside the housing, is mounted movable in this housing between two positions, namely, a closed position, for which its recess extends from one to the other of the two contact members, so that a fuse cartridge present in this recess then establishes an electrical connection between them, and an open position, for which, apart from these contact members, its recess extends partly out of the housing, so that '' the user can install a cartridge fuse or remove it.
  • the present invention generally aims to develop this arrangement, by implementing it for a switch capable of controlling the supply of another circuit, and for example that of an indicator, depending on the position. opening or closing, of the fuse holder of the circuit breaker.
  • an auxiliary switch comprising, in a housing, a contact blade, which, under the control of an actuating lever mounted pivoting and sliding, is, at least in part, movable between two positions, one closing, for which it is applied against a fixed contact, the other opening, for which it is instead removed from this fixed contact.
  • the actuation lever is under the control of a push-button, without it being envisaged to associate any control rod with it.
  • This auxiliary switch cannot therefore be easily associated with a circuit breaker of the type in question, and this moreover poses a particular problem, insofar as its fuse holder having a relatively large clearance, the cam means that it comprises must only intervene momentarily, on the fly, on such an auxiliary switch.
  • the present invention firstly more specifically relates to an auxiliary switch meeting this double requirement.
  • This auxiliary switch which is of the type comprising, in a housing, at least one contact blade, which, under the control of an actuating lever mounted pivoting and sliding, is, at least in part, mounted movable between two positions , one for closing, for which it is applied against a fixed contact, the other for opening, for which it is on the contrary spaced from this fixed contact, is generally characterized in that, the lever actuator laterally comprising a control rod, which, for its intervention, protrudes from the housing by means of a buttonhole thereof, this buttonhole locally forms, apart from its main part, a lobe exhaust which is suitable for receiving this control rod.
  • the fuse holder of the circuit breaker directs this control rod towards the exhaust lobe of the buttonhole in which it is struggling , and this fuse holder can thus continue its journey without there being any more interference between it and this control rod.
  • the present invention also relates to a circuit breaker, the fuse holder of which has cam means established accordingly.
  • the auxiliary switch 10 comprises, in a manner known per se, in a housing 11, at least one contact blade 12A , which, under the control of an actuating lever 14 mounted to pivot and slide according to arrangements described in more detail later, is, at least in part, movably mounted between two positions, one closed, shown in FIG. 3, for which it is in application against a fixed contact 15A, the other opening, shown in FIG. 7B, for which it is on the contrary moved away from this fixed contact 15A.
  • this auxiliary switch 10 constitutes a modular device.
  • Its housing 11 is therefore in the general form of a plate, with two main faces 16 parallel to one another, and, along its contour, a rear face 17, two side faces 18 substantially parallel to each other and perpendicular to the rear face 17, and a front face 19, which, apart from a projecting part 20 in its median zone, is substantially parallel to the rear face 17.
  • the rear face 17 has a notch 21, with the aid of which a latching device, not shown, may intervene for fixing the assembly on a support rail of standardized type, also not shown. .
  • the housing 11 is formed, on the one hand, by a base 22, which forms the body of the box, and the bottom 23 of which forms one of the main faces 16, and, on the other hand , a cover 24, which, attached to the base 22, is duly secured thereto, and which forms the other of the main faces 16.
  • the auxiliary switch 10 comprises a second contact blade 12B, which, also under the control of the actuating lever 14, is also at least partially mounted movable between two positions, one closed, shown in Figure 7B, for which it is applied against a second fixed contact 15B, the other open, shown in Figure 3, for which it is instead of this fixed contact 15B.
  • the auxiliary switch 10 constitutes an inverter, the two fixed contacts 15A, 15B being carried by the same metal strip 25 by which they are connected to an input terminal 26 while the two contact blades 12A, 12B are each individually in connection with two output terminals 27A, 27B and one is in the closed position while the other is in the open position, and reciprocally.
  • the contact blade 12A is embedded on the housing 11 at one of its ends, and, by its other end, which is free, it cooperates with the fixed contact 15A with which it is associated.
  • the contact blade 12A comprises two sections, namely, a fixed section 28, which is in connection with the output terminal 27A, and which is inserted between pads 30 coming from a integral with the bottom 23 of the base 22 of the housing 11, and a movable section 31, which is subjected to the actuation lever 14, according to arrangements described in more detail later, and which cooperates with the fixed contact 15A.
  • this fixed section 28 and this movable section 31 form an acute dihedral between them.
  • the second contact blade 12B is embedded on the housing 11 at one of its ends, and, by its other end, which is free, it cooperates with the fixed contact 15B with which it is associated.
  • this contact blade 12B comprises, in the embodiment shown, a fixed section 33, which is in connection with the output terminal 27B, and which is inserted between the part of the flange 34 of the base 22 of the housing 11 forming the rear face 17 of the latter and of the studs 35 coming in one piece from the bottom 23 of this base 22, and a movable section 36, which is subjected to the actuation lever 14, and by which it cooperates with the fixed contact 15B.
  • this fixed section 33 and this movable section 36 form an obtuse dihedral between them.
  • the input terminal 26 opens on one of the side faces 18 of the housing 11, while the output terminals 27A, 27B open on the opposite side face 18, being stepped thereon.
  • clamping screw 37 is accessible from the front face 19 of the housing 11.
  • the actuation lever 14 comprises, laterally, a control rod 38, which, for its intervention, and according to methods described in more detail later, protrudes from the housing 11 by means of a buttonhole 39 of the latter, and this buttonhole 39 forms, locally, away from its main part 40, an exhaust lobe 42 which is capable of receiving this control rod 38.
  • the actuating lever 14 is generally in the form of a hollow rod, with a U-shaped cross section.
  • flanks 44 which are substantially parallel to each other, and which, apart from an inflection in their median zone, are in practice substantially rectilinear, and, on the other hand, a bottom 45 , flat, which is substantially perpendicular to the sides 44.
  • the sides 44 form a groove 46 between them.
  • this groove 46 is open, while, at the other of its ends, 48, it is closed, one of the sides 44 joining the other by a rounded profile 49.
  • the actuation lever 14 thus generally formed has its concavity facing the bottom 23 of the base 22 of the housing 11, and, for its guidance, its width L1, that is to say the distance externally separating one of the 'other two flanks 44, is substantially equal to the distance L2 internally separating the bottom 23 of the cover 24, as shown schematically in broken lines in Figure 5, while being slightly less than this distance L2.
  • the control rod 38 is carried by a solid 50, which, coming in one piece from the bottom 45, substantially perpendicular thereto, extends between the sides 44, at a distance from one and the other of the ends 47, 48, but closer to the open end 47 than to the closed end 48.
  • control rod 38 comprises, at its base, for its guidance, a section 52 of larger section, whose diameter D1 corresponds substantially to the width L3 of the buttonhole 39 of the housing 11, while being slightly less than this width L3.
  • it also includes a section 53 whose diameter D2 is intermediate between that D1 of the section 52 and its own diameter D3.
  • the actuation lever 14 is engaged, by its groove 46, on the side of its open end 47, with a lug 54 secured to the housing 11, FIG. 3.
  • a cylindrical lug 54 of circular cross section, which is in one piece with the bottom 23 of the base 22 of the housing 11, and whose diameter D4 is substantially equal to the width L4 internally separating from one another the two sides 44 of the actuating lever 14, while being slightly less than this width L4.
  • the actuation lever 14 For its action on the contact blade 12A, the actuation lever 14 comprises, transversely, in its median zone, that is to say between its ends 47, 48, a recess 55, which in practice affects its only flanks 44, without interference with its bottom 45, and thanks to which it is crossed right through by this contact blade 12A.
  • the actuation lever 14 has, at the edge of this recess 55, a boss 56, with rounded profile, which is in one piece with one of its sides 44, in this case that opposite to that having a rounded profile 49 at the closed end 48, in a way forming a local bulge of this sidewall 44, and by which it is able to act on the contact blade 12A.
  • the block 50 carrying the control rod 38 also extends at the edge of the recess 55, but on the side of the latter opposite the boss 56, and it is in one piece with the sidewall 44 having a rounded profile 49 at the closed end 48.
  • the contact blade 12A bears elastically, by itself, on the fixed contact 15A with which it is associated, and the boss 56 of the actuating lever 14 is located same side of this contact blade 12A as this fixed contact 15A, a short distance from the contact blade 12A.
  • the contact blade 12B extends, on the other side of the control rod 38 of the actuating lever 14 relative to the contact blade 12A.
  • the actuation lever 14 is capable of acting on this contact blade 12B by one of its ends, in this case the closed end 48 having a rounded profile 49.
  • At least one of the contact blades 12A, 12B is at least partially elastically deformable, and thus constitutes by itself elastic means suitable for stable maintenance of the actuation lever 14 in at least one of its positions .
  • this is the contact blade 12B, the latter being elastically constrained by the actuating lever 14 when it is in the closed position.
  • the exhaust lobe 42 formed by the buttonhole 39 of the housing 11 extends in practice at one of the ends of the part current 40 of it.
  • this exhaust lobe 42 is reduced in practice to a bent extension of the main part 40, by connecting to the latter by a largely rounded section 57, and this main part 40 is substantially rectilinear.
  • the actuation lever 14 comprises, laterally, on the side opposite to its control rod 38, by means of the block 50 carrying the latter, a bore 58, which is aligned, axially, with this control rod 38, and in correspondence with which the housing 11, and, more precisely, the cover 24 thereof, has a buttonhole 59 of the same type as the buttonhole 39 which it presents for the control rod 38 .
  • circuit breaker 60 with which the auxiliary switch 10 thus formed can be associated will not be described in all its details here, insofar as it is described in French patent application No 94 15332, and where, at In this regard, the description thereof can be considered as an integral part of the present patent application.
  • this fuse holder 61 moves along a curved path.
  • this fuse holder 61 has, projecting, two ribs 63, by which, as shown schematically in broken lines in Figure 9, it is engaged with a rib 64 integral with the housing 62 of the circuit breaker 60 .
  • the fuse holder 61 of the circuit breaker 60 comprises cam means 65 on the path of which the housing 62 of this circuit breaker 60 has an opening 66 suitable for the passage of the rod of control 38 of its actuating lever 14, this opening 66 being in practice constituted by a buttonhole of the same type as the buttonholes 39, 59 of the housing 11 of the auxiliary switch 10.
  • the cam means 65 have a groove 67 which is hollow in the fuse holder 61, between its ribs 63, for the engagement of the control rod 38, as shown schematically in broken lines in Figure 9.
  • this groove 67 has, successively, according to the invention, two sections, which are offset transversely with respect to each other, namely, a first section 68, which opens, freely, by an outlet 69, at the end of the fuse holder 61, on the edge thereof, and a second section 70, which, on the contrary, has a blind bottom 71, with, at the connection of these two sections 68, 70, of a hand, on a first of the sides of this groove 67, a drive plate 72, which, facing the blind bottom 71 of the second section 70, is suitable for driving the control rod 38, and, on the other hand , on the other side of this groove 67, between the blind bottom 71 of the second section 70 and the drive panel 72, a deflection panel 74, which, facing the outlet 69 of the first section 68, is suitable for deflect this control rod 38.
  • the groove 67 is also generally curved, like the curved path of the fuse holder 61.
  • the fuse holder 61 If, according to the arrows F1 in FIGS. 8, 10A and 10B, the fuse holder 61 is controlled to open, it first of all has an idle stroke for which it remains without incidence on the control rod 38 of the switch auxiliary 10, until the drive plate 72 of its groove 67 comes into contact with this control rod 38, as shown diagrammatically in broken lines in FIG. 10A.
  • the actuation lever 14 of this auxiliary switch 10 comes, by its boss 56, to bear on the contact blade 12A, which causes the passage of the latter in open position, however, by its closed end 48, it also comes to bear on the contact blade 12B.
  • the actuation lever 14 ensures the passage into the closed position of the contact blade 12B, while accentuating the opening of the contact blade 12A.
  • the control rod 38 of the auxiliary switch 10 arrives at the right of the exhaust lobe 42 of the buttonhole 39 of the housing 11, it is directed towards this exhaust lobe 42 by the largely rounded section 57 of this buttonhole 39, so that, as shown in FIG. 10B, the fuse holder 61 of the circuit breaker 60 can continue its path freely, until 'to its final opening position.
  • the groove 67 forming the cam means 65 of this fuse holder 61 again engages, at the favor of the outlet 69 of its first section 68, on the control rod 38 of the actuation lever 14 of the auxiliary switch 10, then, by its deflection face 74, it causes the release of this control rod 38 from the lobe exhaust 42 of the buttonhole 39 of the housing 11 of this auxiliary switch 10, until bringing it back into the main part 40 of this buttonhole 39, and, finally, by the blind bottom 71 of its second section 70, it acts on this control rod 38 in the direction causing the return of the actuating lever 14 of the auxiliary switch 10 to its initial position.
  • the contact blades 12A, 12B of the auxiliary switch 10 return themselves elastically to their initial position, in this case a closed position for the contact blade 12A and an open position for the blade. contact 12B.
  • the bore 58 of the actuating lever 14 can allow the cascade control of another auxiliary switch, or of another electrical device, not shown.
  • control rod 38 of the actuating lever 14 of this other auxiliary switch or a control rod provided in a similar manner for this purpose on this other electrical appliance, is engaged in this bore 58.
  • the present invention is moreover not limited to the embodiment and / or implementation described and shown, but encompasses any variant.
EP96402756A 1995-12-20 1996-12-17 Hilfsschalter für Ausschalter und entsprechender Ausschalter Expired - Lifetime EP0780860B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9515136A FR2728383B1 (fr) 1994-12-20 1995-12-20 Interrupteur auxiliaire pour coupe-circuit, et coupe-circuit correspondant
FR9515136 1995-12-20

Publications (2)

Publication Number Publication Date
EP0780860A1 true EP0780860A1 (de) 1997-06-25
EP0780860B1 EP0780860B1 (de) 2003-05-07

Family

ID=9485713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96402756A Expired - Lifetime EP0780860B1 (de) 1995-12-20 1996-12-17 Hilfsschalter für Ausschalter und entsprechender Ausschalter

Country Status (4)

Country Link
US (1) US5969587A (de)
EP (1) EP0780860B1 (de)
DE (1) DE69627973T2 (de)
ES (1) ES2199276T3 (de)

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EP1198807B1 (de) * 1999-07-22 2004-05-19 Klaus Bruchmann Schaltersicherungseinheit mit halterverriegelung
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US11804350B2 (en) 2004-09-13 2023-10-31 Eaton Intelligent Power Limited Fusible switching disconnect modules and devices with tripping coil
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US7576630B2 (en) * 2004-09-13 2009-08-18 Cooper Technologies Company Fusible switching disconnect modules and devices
US8614618B2 (en) * 2004-09-13 2013-12-24 Cooper Technologies Company Fusible switching disconnect modules and devices with multi-functional trip mechanism
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CN103403833B (zh) 2010-08-18 2016-09-14 艾普顿集团有限责任公司 密封的电路断路器
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EP2666174B1 (de) 2011-01-19 2014-11-19 Cooper Technologies Company Elektronisch gesteuerte schmelzsicherungsschaltmodule und vorrichtungen
US11335528B2 (en) 2011-01-19 2022-05-17 Eaton Intelligent Power Limited Fusible switching disconnect modules and devices with electromagnetic coil and trip mechanism
WO2012099726A1 (en) * 2011-01-19 2012-07-26 Cooper Technologies Company Fusible switching disconnect modules and devices with in-line current detection
CA2829600C (en) 2011-03-10 2017-01-03 Ron Hughes Electrical enclosure
US8419475B2 (en) * 2011-07-19 2013-04-16 Cooper Technologies Company Modular open fuseholder with multi-stage positionable cover
DE102011052198A1 (de) * 2011-07-27 2013-01-31 Phoenix Contact Gmbh & Co. Kg Sicherungsklemme
FR2982705B1 (fr) * 2011-11-16 2013-11-15 Ece Dispositif de protection d'un circuit electrique alimente par un courant alternatif integrable dans un contacteur.
US9136083B2 (en) * 2013-03-15 2015-09-15 Regal Beloit America, Inc. Enclosed bus bar fuse holder
US10008347B1 (en) * 2013-08-08 2018-06-26 Palle Kohring Weinreich Electrical switch with built in fuse improvement
US9613776B2 (en) * 2014-08-19 2017-04-04 Regal Beloit America, Inc. Fuse holder and associated method
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EP3608934A1 (de) * 2018-08-07 2020-02-12 Gorlan Team, S.L.U. Sicherungs-schaltmodul
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FR2638562A1 (fr) 1988-10-27 1990-05-04 Telemecanique Electrique Interrupteur auxiliaire
EP0431994A1 (de) * 1989-12-08 1991-06-12 Telemecanique Anpassungseinrichtung für Nebenkontaktgehäuse

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Publication number Priority date Publication date Assignee Title
US3435389A (en) * 1967-04-19 1969-03-25 Allis Chalmers Mfg Co Electromagnetic contactor having cam means for operating auxiliary switch
US3820046A (en) * 1973-10-15 1974-06-25 Square D Co Auxiliary switch for molded-case circuit breaker
FR2551915A1 (fr) * 1983-09-08 1985-03-15 Hager Electro Perfectionnements apportes aux coupe-circuits a manette oscillante portant une cartouche fusible et formant came pour la commande d'un circuit auxiliaire
FR2638562A1 (fr) 1988-10-27 1990-05-04 Telemecanique Electrique Interrupteur auxiliaire
EP0431994A1 (de) * 1989-12-08 1991-06-12 Telemecanique Anpassungseinrichtung für Nebenkontaktgehäuse

Also Published As

Publication number Publication date
ES2199276T3 (es) 2004-02-16
DE69627973T2 (de) 2003-11-27
US5969587A (en) 1999-10-19
DE69627973D1 (de) 2003-06-12
EP0780860B1 (de) 2003-05-07

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