EP2263247A1 - Dispositif de commutation - Google Patents

Dispositif de commutation

Info

Publication number
EP2263247A1
EP2263247A1 EP09717752A EP09717752A EP2263247A1 EP 2263247 A1 EP2263247 A1 EP 2263247A1 EP 09717752 A EP09717752 A EP 09717752A EP 09717752 A EP09717752 A EP 09717752A EP 2263247 A1 EP2263247 A1 EP 2263247A1
Authority
EP
European Patent Office
Prior art keywords
switching
switching device
triggering
lever
spring
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
EP09717752A
Other languages
German (de)
English (en)
Other versions
EP2263247B1 (fr
Inventor
Adolf Tetik
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.)
Eaton GmbH
Original Assignee
Moeller Gebaudeautomation GmbH
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 Moeller Gebaudeautomation GmbH filed Critical Moeller Gebaudeautomation GmbH
Priority to PL09717752T priority Critical patent/PL2263247T3/pl
Publication of EP2263247A1 publication Critical patent/EP2263247A1/fr
Application granted granted Critical
Publication of EP2263247B1 publication Critical patent/EP2263247B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms
    • 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
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • 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
    • H01H71/2472—Electromagnetic mechanisms with rotatable armatures

Definitions

  • the invention relates to a switching device according to the preamble of claim 1.
  • switching devices are known, which in case of excessive currents in a pipeline network, which continue over a predetermined time, disconnect this line network from a supply network to prevent the further supply of electrical current.
  • Switching devices are further known which, in the event of a short circuit in a line network, separate this line network from a supply network in order to prevent the further supply of electrical current.
  • Such switching devices therefore have a so-called.
  • Overcurrent tripping device or a short-circuit tripping device which trigger a mechanical disconnecting device in response, which separates the switching contacts of the switching device, and prevents further current flow.
  • the overcurrent release device or the short-circuit release device usually act mechanically on a mechanical release of the separation device.
  • the overcurrent tripping device or the short-circuit tripping device does not act directly on the disconnecting device, and therefore does not initiate it by an immediate or transmission member-free mechanical operation, since the overcurrent tripping device or the short-circuit tripping device often arranged in the switching device as an assembly of the separator are.
  • Such trained switching devices therefore have a mechanical link between the overcurrent tripping device and the short-circuit tripping device and the separation device.
  • a disadvantage of this is that the mechanical effect which is exerted by the overcurrent tripping device or the short-circuit tripping device on the separating device, can lead to damage of the overcurrent tripping device, the short-circuit tripping device, the connecting link and / or the separating device.
  • Such damage to the switching device means that it will not trigger at the next occasion in which the switching device should be triggered. Since such damage in many cases are not visible from the outside, such damaged switching devices are not replaced, and thus represent a serious threat to people and equipment.
  • the object of the invention is therefore to provide a switching device of the type mentioned, with which the mentioned disadvantages can be avoided, in which the Functionality of such switching devices can be better ensured, and in which
  • Overcurrent tripping device the short-circuit tripping device of the reversing lever and / or the separating device, in particular due to the mechanical effect, which the overcurrent tripping device or the short-circuit tripping device on the
  • Fig. 1 shows a preferred embodiment of a switching device according to the invention in axonometric exploded view
  • Fig. 2 shows a preferred embodiment of a switching mechanism together with a
  • FIG. 4 shows the reversing lever according to FIGS. 1 and 2 in a second axonometric view
  • Fig. 1 shows switching device 1, preferably circuit breaker, with at least one
  • Switching contacts 4 in a closed position, a current path between the
  • Disconnecting the first switching contact 4 and the second switching contact is provided, and wherein an overcurrent tripping device 6 and / or a short-circuit tripping device 7 are provided, which for triggering the separating device 5 with this by means of a
  • Reversing lever 8 are in mechanical operative connection, wherein the lever 8 at least a first lever arm (9) and a second lever arm 10, wherein the first lever arm 9 has a Anêtfortsatz 11 for driving by the overcurrent tripping device 6 and / or the KurzInstitutauslinatevorraum 7, and wherein the second lever arm 10 an actuating extension 12 for triggering the separating device.
  • 5 includes, wherein the actuating extension 12 is formed resiliently.
  • Fig. 1 shows a series of modules of a preferred embodiment of a switching device 1 according to the invention in axonometric exploded view.
  • switching devices 1 with three switching paths or current paths, wherein any predeterminable number of switching paths or switchable current paths can be provided.
  • switching devices 1 according to the invention are provided with one, two, three or four current paths. According to the number of current paths respectively the same number of input terminals 2 and output terminals 3 are provided.
  • the respective input terminals 2 and output terminals 3 generally comprise in addition to the illustrated parts, in each case at least one clamping screw, and preferably in each case at least one movable jaw by means of the clamping screw.
  • the switching device 1 comprises an insulating housing 21, which in the preferred embodiment comprises a lower housing shell 22 and an upper housing shell 23.
  • the at least one first switching contact 4 is in a closed position on the at least one second switching contact, which is not visible in the illustrated embodiment within the assembly of the arc quenching chamber 29.
  • Switching devices 1 have an overcurrent tripping device 6 and / or a short-circuit tripping device 7.
  • Fig. 4 shows a preferred embodiment of a Arrangement of an overcurrent tripping device 6 and a short-circuit tripping device 7.
  • the short-circuit tripping device 7 is formed from a U-shaped yoke 31 and a hinged armature 26, wherein the U-shaped yoke 31 is attached to a first conductor 30 of the current path, which is preferably associated with the input terminal 2 and / or the output terminal 3.
  • the hinged armature 26 is rotatably mounted, which is forced by a hinged armature spring 32 in a rest position, as shown in Fig. 4, at which rest position the hinged armature 26 protrudes from the U-shaped yoke 31.
  • the overcurrent tripping device 6 comprises a bimetal element 33, which is attached to the first conductor 30.
  • the bimetallic element 33 is flowed through directly by electricity, so is itself part of the current path, and is directly heated by the stream.
  • the bimetallic element 33 is completely or additionally heated indirectly, for example by a current-carrying conductor is arranged on the bimetallic element 33. With increasing heating of the bimetallic element 33 due to the flow of current, this is bent more and more.
  • the overcurrent tripping device 6 and / or the short-circuit tripping device 7 does not act directly on the separating device 5, but rather on a reversing lever 8, as shown approximately in FIG. Fig. 2 shows an arrangement of a separator 5, a lever 8, an overcurrent tripping device 6 and a short circuit tripping device 7.
  • a Deflection lever 8 has at least a first lever arm 9 and a second lever arm 10, wherein the first lever arm 9 has a An horrfortsatz 11, which - is provided for driving through the first end 28 of the hinged armature 26 - in the illustrated preferred embodiment.
  • the first end 28 of the hinged armature 26 acts on the control extension 11 of the reversing lever 8.
  • a switching extension 11 is provided for each switching path.
  • the second lever arm 10 comprises an actuating extension 12 for triggering the separating device 5.
  • the separating device 5 is designed as a switching mechanism 17 with a latchable pawl 18.
  • the switching mechanism 17 is a force-storing link between an actuating lever 24 and the switching contacts 4.
  • the switching lock 17 is stretched in the subject formation in a first step by movement of the actuating lever 24 in a first direction, wherein a spring energy storage is tensioned, which upon release of the Switching lock 17 ensures fast and safe separation of the switching contacts 4.
  • the clamping operation is terminated by a latching, latching or latching of the pawl 18 on a housing-fixed part of the switching mechanism 17.
  • the switching contacts are closed by movement of the actuating lever 24 in a second direction.
  • the latching connection of the pawl 24 with the housing-fixed part of the switching mechanism 17 is designed such that a predetermined movement of the pawl 18 in a predetermined direction unlocks the switching mechanism 17, whereby the spring force memory is released and the switching contacts 17 are disconnected.
  • Such preferably used for use switching mechanism 17 is described for example in German Offenlegungsschriften DE 42 27 213 Al and German Patent DE 44 42 417 Cl.
  • the actuating extension 12 is resilient, each type of resilient compliance can be provided, such as the formation of the actuating extension 12 as a spring, comprising metal or plastic, such as Elastomers.
  • Fig. 2 shows a preferred embodiment of a switching mechanism 17 with an inventively designed lever 8, wherein the switching mechanism 17 is shown in a partially broken representation.
  • the pawl 18 is in the latched position, and the actuating lever 24 is in the position of open switching contacts 4.
  • the actuating extension 12 is not in engagement with the pawl 18, so that neither the overcurrent tripping device 6 nor the short-circuit tripping device 7 have detected a tripping situation.
  • the reversing lever 8 is moved or rotated counterclockwise by the overcurrent tripping device 6 or the short-circuit tripping device 7, whereby the resiliently formed actuating extension 12 comes into engagement with the pawl 18, and this, after a predefinable deflection, the switching mechanism 17 triggers.
  • the spring forces of the resiliently formed actuating extension 12 are dimensioned such that upon release or unlatching of the pawl 18 no significant deformations occur on the actuating extension 12. This is not a problem, since the forces for a release or unlatching of the pawl 18 are very low.
  • it may come after triggering or unlatching of the pawl 18 due to the strong deformation of the bimetal 33 of the overcurrent tripping device 6 to a further rotation of the reversing lever 8, resulting in damage to the pawl 18th , the deflection lever 8 and / or the bimetallic element 33 can lead.
  • the resilient, resilient design of the actuating extension 12 in a movement direction of the deflection lever 8 for triggering the separation device 5 can be achieved that in a further rotation of the reversing lever 8 after the release or unlatching of the pawl 18, the pawl 18 is not further rotated or deflected is and is exposed to excessive load, whereby the pawl 18 and the entire switching mechanism 17 are spared from destruction. Due to the resilient design of the actuating extension 12, a further rotation of the reversing lever 8 is possible without damaging the reversing lever 8 would be expected. As a result, the overcurrent tripping device 6, the short-circuit tripping device 7 and the hinged armature 26 can also be protected against damage.
  • the deflection lever 8 is formed as a release shaft 19, wherein the release shaft 19 has a shaft body 20, which in a housing 21 of Switching device 1 is rotatably mounted. In the area of the intended mounting of the shaft body 20, this preferably has axial guide webs 27 in order to prevent a displacement of the release shaft 19 in the axial direction.
  • On the trip shaft 19 are - as shown in FIGS. 2 to 4, arranged control extensions 11, and an actuating extension 12.
  • the actuating extension 12 as a spring 13, preferably as a metal spring, is formed, each spring material can be provided ,
  • the actuating attachment 12 is designed as a steel spring.
  • the spring 13 is at least partially formed as a torsion spring 14, whereby a particularly controlled elastic effect in the intended loading direction, can be achieved.
  • the torsion spring 14 is at least once wrapped completely around the shaft body 20 of the trip shaft 19.
  • a main resilient action of the actuating extension 12 can be achieved radially to the direction of rotation of the trip shaft 19.
  • the bell crank 8 has a support bearing 15, on which, the, a torsion spring 14 comprehensive, actuating extension 12 is supported, and / or that the spring 14 on a support 16 supported, which is arranged on the control extension 11.
  • the support bearing 15 and the support 16 are shown in FIGS. 3 and 4 particularly clearly visible.
  • the support bearing 15 is formed in the illustrated preferred embodiment as an L-shaped stop on which the spring 13 is fixed, and is held by the spring force.
  • the support 16 is formed as a transverse strut against which an angled end of the spring 13 abuts.
  • FIG. 3 shows a triggering shaft 19 in the operating arrangement before or when the pawl 18 is triggered, it being easy to see that the actuating extension 12 bears against the supporting bearing 15.
  • Fig. 4 shows the same triggering shaft as in Fig. 3, but this has been rotated so far that the actuating extension 12 further on the - not shown - pawl 18 rests, but without further moving, wherein the actuating extension 12 of the support bearing 15 is lifted off.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Abstract

L'invention concerne un dispositif de commutation (1), de préférence un disjoncteur, comprenant au moins une borne d'entrée (2) et au moins une borne de sortie (3) destinées à connecter des conducteurs électriques, ainsi qu'un premier contact de commutation (4) et un second contact de commutation, lesdits contacts de commutation fermant, en position fermée, un circuit de courant entre la borne d'entrée (2) et la borne de sortie (3). Un dispositif de séparation (5) permet de séparer le premier contact de commutation (4) et le second contact de commutation, et un dispositif de déclenchement à surintensité (6) et/ou un dispositif de déclenchement de court-circuit (7) sont mécaniquement et fonctionnellement reliés au dispositif de séparation au moyen d'un levier de renvoi (8) afin de déclencher ledit dispositif de séparation (5). Le levier de renvoi (8) comprend au moins un premier bras de levier (9) et un second bras de levier (10), le premier bras de levier (9) comprenant une saillie d'amorçage (11) destinée à être amorcée par le dispositif de déclenchement à surintensité (6) et/ou le dispositif de déclenchement de court-circuit (7), le second bras de levier (10) comprenant une saillie d'actionnement (12) destinée à déclencher ledit dispositif de séparation (5). Selon l'invention, afin de garantir le bon fonctionnement du dispositif de commutation (1), la saillie d'actionnement (12) est conçue de manière à être élastiquement souple.
EP09717752A 2008-03-05 2009-02-17 Dispositif de commutation Active EP2263247B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09717752T PL2263247T3 (pl) 2008-03-05 2009-02-17 Łącznik

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0035908A AT509250A1 (de) 2008-03-05 2008-03-05 Schaltgerät
PCT/AT2009/000056 WO2009108967A1 (fr) 2008-03-05 2009-02-17 Dispositif de commutation

Publications (2)

Publication Number Publication Date
EP2263247A1 true EP2263247A1 (fr) 2010-12-22
EP2263247B1 EP2263247B1 (fr) 2011-07-13

Family

ID=40852337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09717752A Active EP2263247B1 (fr) 2008-03-05 2009-02-17 Dispositif de commutation

Country Status (15)

Country Link
US (1) US8143980B2 (fr)
EP (1) EP2263247B1 (fr)
CN (1) CN101527233B (fr)
AR (1) AR070780A1 (fr)
AT (2) AT509250A1 (fr)
AU (1) AU2009221605A1 (fr)
BR (1) BRPI0909674A2 (fr)
CA (1) CA2717317A1 (fr)
ES (1) ES2372087T3 (fr)
IL (1) IL207560A0 (fr)
PL (1) PL2263247T3 (fr)
RS (1) RS51945B (fr)
RU (1) RU2498440C2 (fr)
SI (1) SI2263247T1 (fr)
WO (1) WO2009108967A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBG20060065A1 (it) * 2006-12-21 2008-06-22 Abb Service Srl Dispositivo di protezione per un interruttore automatico e interruttore automatico comprendente tale dispositivo.
MX2014010199A (es) 2012-02-28 2014-11-21 Siemens Ag Unidades de disparo termomagnetico de disyuntor y metodos.
DE102012216177A1 (de) * 2012-08-28 2014-03-06 Siemens Aktiengesellschaft Vorrichtung zur Justage eines Klappankers
KR200491965Y1 (ko) * 2016-05-04 2020-07-08 엘에스일렉트릭(주) 회로차단기의 가 조정 열동 트립 기구
FR3052909B1 (fr) * 2016-06-17 2018-07-13 Hager-Electro Sas Appareil de protection du type disjoncteur comportant une butee de reglage du ressort de calibrage

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Also Published As

Publication number Publication date
AU2009221605A1 (en) 2009-09-11
CN101527233B (zh) 2014-07-30
CN101527233A (zh) 2009-09-09
CA2717317A1 (fr) 2009-09-11
AT509250A1 (de) 2011-07-15
IL207560A0 (en) 2010-12-30
RU2498440C2 (ru) 2013-11-10
US20090224861A1 (en) 2009-09-10
EP2263247B1 (fr) 2011-07-13
BRPI0909674A2 (pt) 2015-09-22
PL2263247T3 (pl) 2012-04-30
RS51945B (en) 2012-02-29
ES2372087T3 (es) 2012-01-13
SI2263247T1 (sl) 2012-03-30
ATE516593T1 (de) 2011-07-15
WO2009108967A1 (fr) 2009-09-11
AR070780A1 (es) 2010-05-05
RU2010140618A (ru) 2012-04-10
US8143980B2 (en) 2012-03-27

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