EP2131378A1 - Steuervorrichtung für ein elektrisches Unterbrechungsgerät, das mit einer Signalisierungsvorrichtung für die Verschweißung der Kontakte ausgestattet ist, und mit dieser Vorrichtung ausgestattetes elektrisches Unterbrechungsgerät - Google Patents

Steuervorrichtung für ein elektrisches Unterbrechungsgerät, das mit einer Signalisierungsvorrichtung für die Verschweißung der Kontakte ausgestattet ist, und mit dieser Vorrichtung ausgestattetes elektrisches Unterbrechungsgerät Download PDF

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Publication number
EP2131378A1
EP2131378A1 EP09354017A EP09354017A EP2131378A1 EP 2131378 A1 EP2131378 A1 EP 2131378A1 EP 09354017 A EP09354017 A EP 09354017A EP 09354017 A EP09354017 A EP 09354017A EP 2131378 A1 EP2131378 A1 EP 2131378A1
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EP
European Patent Office
Prior art keywords
handle
contacts
pawl
contact
indicator
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
EP09354017A
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English (en)
French (fr)
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EP2131378B1 (de
Inventor
Yves Belin
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
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Filing date
Publication date
Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP2131378A1 publication Critical patent/EP2131378A1/de
Application granted granted Critical
Publication of EP2131378B1 publication Critical patent/EP2131378B1/de
Active 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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/501—Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker
    • 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
    • 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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure

Definitions

  • the present invention relates to a device for controlling an electric switchgear housed in an insulating housing, comprising at least one movable contact carried by a contact carrier intended to cooperate with at least one fixed contact with respect to the housing, said contact movable which can be operated either manually via a handle rotatably mounted about an axis of the housing, or automatically between an open position and a closed position of the fixed and movable contacts, and a closure device abruptly, said device being intended, at the beginning of the manual closing maneuver of the joystick and a certain stroke thereof, to hold the movable contact in the open position by storing energy and, after this stroke of the joystick, releasing said moving contact in such a way that the energy stored previously causes the fixed and mobile contacts to close abruptly, said closure device br USQUE UTILIZATION comprising a ratchet rotatably mounted about the axis of the handle, said pawl being biased by a spring against a stop of the handle, being driven by the handle in the direction of closing and cooperating with the contact
  • This mechanism advantageously comprises a device for abrupt closing of the contacts comprising a locking arm arranged on the insulating support lever of the contact arm and cooperating with a pawl pivotally mounted on the axis of the joystick.
  • This pawl is associated with a return spring which urges the pawl in the trigonometric direction against a stop of the joystick.
  • This device does not include means for signaling the welding of the contacts.
  • the device for indicating the welding of the contacts comprises a stop provided on the contact carrier intended to interfere with a locking nose provided on the base of the handle, so as to hold the handle in an intermediate position. in case of welding contacts.
  • This mechanism also comprises an apparent signal indicator of the opening of the circuit breaker arranged on the base of the handle in the vicinity of the hinge of the toggle joint, so as to be visible from the outside of the housing through the orifice when the handle arrives in the open position.
  • the indicator comprises a first signaling arm equipped with an indicator light, and a second control arm movable between two end stops, and having a step cooperating with the nose of the contact carrier to lock the indicator in the position inactive when the handle is actuated from the closed position to the open position when the contacts are soldered.
  • the present invention solves the aforementioned problems and proposes a device for controlling an electrical switching device comprising a contact welding signaling device, of simple design, having a reduced number of parts, and for which the handling of the controller when the contacts are soldered does not mislead the indicator in the open position of the contacts.
  • the subject of the present invention is a control device of the kind mentioned above, this device being characterized in that the aforementioned pawl comprises a light, said light being visible from the outside through an opening of the housing, that when the fixed and mobile contacts are open.
  • the above-mentioned pawl is integral with the indicator light.
  • this pawl has a so-called first outer surface, in the form of a cylinder portion, cooperating with a ramp belonging to the contact-carrier, so that it is retained in the open position of the contacts during the closing of the the handle for a certain period corresponding to the time during which the pawl slides along the ramp of the contact carrier.
  • the aforementioned pawl has at one of the ends of its so-called first outer surface, a second surface portion extending substantially perpendicular to the first and intended to cooperate with a beak portion formed to the end of the ramp of the aforementioned contact carrier, so as to retain the pawl in a position in which the indicator is not visible from the outside, when the handle is driven to the open position of the contacts, when the contacts are soldered.
  • the aforesaid indicator is formed by a strip of material extending from said so-called second surface portion.
  • the base of the handle has an outer surface also in the form of a cylinder portion, and this base has a clearance of material whose outer shape is complementary to that of the inner surface facing the axis of the cylinder.
  • this control device comprising a transmission rod coupled to the lever, a device for supporting the movable contact comprising a plate pivotally mounted on a pivot and having a mechanical link breakable with the transmission rod, a lever of tripping triggered by a trigger to cause failure in the event of failure of the mechanical link, causing the automatic triggering of the mechanism independently of the handle and the separation of the contacts, the breakable mechanical link having a detent of the release lever cooperating with a hook hook pivotally mounted on an axis of the plate, the breaking of the mechanical connection corresponding to the unlocking of the attachment,
  • this device is characterized in that it further comprises a stop integral with the plate and adapted to cooperate with the hook so as to guarantee the position of the joystick in a intermediate position of the handle in which the contacts are welded.
  • the invention further relates to an electrical switching device comprising a control device comprising the previously mentioned features taken alone or in combination.
  • a miniature electric circuit breaker molded insulating housing B comprising a control device 1 according to the invention.
  • This control device 1 is of the type described in the European patent application no. 86,402,267 of the plaintiff.
  • the device actuates a contact holder 2 having a contact piece 3 cooperating with a fixed contact 4.
  • An opening 5 is formed in the front face 6 of the housing for the passage of the handle of a handle 7 mounted to pivotally limited on a X axis between a closed position in which the contacts 3,4 are closed, and an open position corresponding to the separation of the contacts 3,4.
  • the handle 7 is equipped with an internal base 8 coupled to a transmission rod 9 to form a toggle device whose articulation 10 is eccentric with respect to the axis X of the lever 7.
  • the lever 7 is requested in a direction corresponding to the opening of the contacts by a return spring 11 illustrated on the figure 2 .
  • the fixed contact 4 is secured to the casing of an electromagnetic trip unit 12.
  • the contact carrier 2 of insulating material is articulated around a pivot 14 belonging to a rotary plate 15 for driving the contact carrier 2.
  • a triggering lever 16 controlled by the striker 17 of the electromagnetic release and the bimetallic strip 18 of the thermal release is pivotally mounted on a Y axis carried by the plate 15 with a predetermined offset with respect to the aforementioned pivot 14.
  • a breakable mechanical connection is provided between the transmission rod 9 and the drive plate of the contact carrier 2. In the locked position, the connection allows the manual control of the mechanism by the lever 7.
  • the movement of the trigger lever 16 towards the position triggered by the action of the trigger causes the momentary break of the mechanical connection, causing the automatic triggering of the mechanism, regardless of the joystick.
  • the trip lever 16 is associated with a return spring 19 for ensuring the automatic restoration of the mechanical link when the handle 7 is actuated to the open position, following a trigger of the fault mechanism.
  • the breakable mechanical link comprises a hook 20 pivotally mounted on an axis Z of the plate 15. At the opposite of this axis Z, a spout 21 of the hook (not visible in the figures) cooperates in the locked position of the link with a retaining catch 22 (not visible in the figures) located on the arm of the trip lever 16.
  • the transmission link 9 is coupled to the hook 20 and the plate 15 at a hinge point that can move when triggered in two consecutive apertures 23,24 of the plate 15. This point of articulation is located between the hinge axis Z of the hook 20 on the plate 15 and the spout 21 of the hook hook.
  • the device further comprises a stop 33 ( fig.8 ) integral with the plate 15 and adapted to cooperate with the hook 20 so as to ensure the position of the handle 7 in an intermediate position of the handle 7 wherein the contacts 3,4 are welded.
  • This control device 1 also comprises a pawl 25 rotatably mounted around the axis X of the lever 7 and returned by the aforementioned spring 11 in the counterclockwise direction against a stop 7a of the base 8 of the handle 7 ( fig.2 ).
  • this spring 11 comprises a first leg 11a fixed in the casing 26 and a second leg 11b resting on a stop 25a of the pawl and also intended to return the lever 7 in the open position by the abutments on the stops 7a of the handle and 25b of the ratchet ( fig.2 ).
  • This pawl 25 has an outer surface 27, said first, in the form of a cylinder portion intended to cooperate with a ramp 28 provided at the end of the contact carrier 2, so that the contact carrier 2 is retained in the position of opening of the contacts during the closure of the handle 7, for a certain period corresponding to the time during which the pawl 25 slides along the ramp 28 of the contact carrier 2.
  • This pawl 25 comprises, at the end 29 of the outer surface 27 in the form of said cylinder portion, a surface portion 30, said second, extending substantially perpendicular to the surface portion 27, said first, and from of which extends a band of material forming the indicator 31.
  • This portion of surface 30, called second comprises a portion 30a ( fig.2 ) intended to cooperate with a nose portion 32 formed at the end of the ramp 28 of the aforementioned contact carrier 2, so as to retain the pawl, against its return spring 11, in a position in which the LED 31 is not visible from the outside, when the handle 7 is driven from the closed position of the contacts to the open position of the contacts when the contacts are soldered.
  • the base 8 of the handle 7 has an outer surface 34 also shaped cylinder portion, and this base has a clearance of material 35 whose outer shape is complementary to that of the inner surface 37 of the strip of material 31 forming the light, so that in the open position of the contacts, these two last surfaces are superimposed, said strip of material 31 forming a light having an outer surface 38 located in the extension of the outer surface 34 of the aforementioned base 8.
  • the handle 7 has begun to be moved manually to the closed position by a movement from left to right.
  • the kinematic chain connecting the lever 7 to the plate 15 drives the contact holder 2 towards the fixed contact 4.
  • the lever 7 drives the pawl 25 in its movement because the indicator 31 is supported on the base 8 of the handle 7 in the open position.
  • the pawl 25 rotates with the handle 7 and approaches the contact holder, which rotates in the opposite direction.
  • the engagement of the pawl 25 with the ramp 28 of the contact carrier 2 stops the rotation of the contact carrier, and maintains the contact piece 3 of the contact carrier 2 at a predetermined distance from the fixed contact 4.
  • the contact carrier 2 remains then still, but the pawl 25 can nevertheless slide along the ramp 28, allowing the closing movement of the lever 7.
  • the lever 7 continues to actuate the mechanism that tends the pressure spring of contact. This results in an accumulation of energy in the contact pressure spring until the end of the sliding movement of the pawl on the ramp, position represented on the figure 6 .
  • the final movement of the handle 7 towards the closed position illustrated on the figure 7 causes the release of the contact carrier 2 by the pawl 25, followed by the abrupt closure of the contact carrier 2 under the action of the drive train and in particular the contact pressure spring.
  • the indicator 31 passes from the visible position from the outside to the retracted position inside the device.
  • the pawl When manually opening the circuit breaker as shown on the figure 8 , the pawl abuts on the spout 32 of the contact holder without hindering the free pivoting of the plate and the contact holder. Then, the ratchet remains in position and the handle and its mechanism continue their rotation. When the opening distance between the contacts 3 and 4 is greater than 1.5mm, the pawl escapes the stop 32 and is biased against the face 7a of the base 8 of the lever under the effect of the spring. 11, to the open position of the joystick illustrated on the figure 5 and the indicator 31 appears through the opening 5 of the housing, as shown in FIG. figure 1 .
  • the handle 7 can move to a certain point but does not drive the plate because the contacts are welded.
  • the pawl 25 is biased towards the lever in the opposite trigonometric direction by its return spring 11.
  • the pawl 25 comes into contact with its so-called second ramp surface 30, with the spout 32 of the contact carrier and is retained by this contact carrier in an intermediate position in which the indicator 31 is retracted inside the device as shown in FIG. figure 8 .
  • the indicator 31 remains in this intermediate position as the contacts are welded.
  • the indicator 31 is carried by the pawl 25 which serves for the sudden closure.
  • This pawl is locked in the intermediate position by the contact carrier 2 when the contacts are welded.
  • the kinematics of the indicator is independent of external actions on the controller.
  • the present invention applies to any electrical breaking device such as a circuit breaker, a switch or a disconnector, etc. whose contacts can be actuated by a handle or the like, and comprising a sudden closure device, said abrupt closure device comprising a pawl rotatably mounted about the axis of the handle.

Landscapes

  • Breakers (AREA)
  • Mechanisms For Operating Contacts (AREA)
EP09354017.7A 2008-06-03 2009-04-22 Steuervorrichtung für ein elektrisches Schaltgerät, das mit einer Signalisierungsvorrichtung für die Verschweißung der Kontakte ausgestattet ist, und mit dieser Vorrichtung ausgestattetes elektrisches Schaltgerät Active EP2131378B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0803045A FR2931998A1 (fr) 2008-06-03 2008-06-03 Dispositif de commande d'un appareil de coupure electrique comportant un dispositif de signalisation de la soudure des contacts, et appareil de coupure electrique comportant un tel dispositif

Publications (2)

Publication Number Publication Date
EP2131378A1 true EP2131378A1 (de) 2009-12-09
EP2131378B1 EP2131378B1 (de) 2015-01-14

Family

ID=40229771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09354017.7A Active EP2131378B1 (de) 2008-06-03 2009-04-22 Steuervorrichtung für ein elektrisches Schaltgerät, das mit einer Signalisierungsvorrichtung für die Verschweißung der Kontakte ausgestattet ist, und mit dieser Vorrichtung ausgestattetes elektrisches Schaltgerät

Country Status (9)

Country Link
EP (1) EP2131378B1 (de)
CN (1) CN101599394B (de)
AU (1) AU2009202174B9 (de)
BR (1) BRPI0902025B1 (de)
EG (1) EG25279A (de)
ES (1) ES2534633T3 (de)
FR (1) FR2931998A1 (de)
RU (1) RU2502149C2 (de)
ZA (1) ZA200902898B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019091405A1 (zh) * 2017-11-07 2019-05-16 施耐德电气工业公司 能够检测预定状态的低压配电装置
EP4040463A1 (de) * 2021-02-09 2022-08-10 Schneider Electric Industries SAS Schnellschlussstruktur für gleichstromleistungsschalter und gleichstromleistungsschalter

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8395063B2 (en) * 2010-12-29 2013-03-12 General Electric Company Locking device for use with a circuit breaker and method of assembly
FR3030871B1 (fr) 2014-12-17 2019-05-10 Schneider Electric Industries Sas Dispositif de declenchement thermique pour un disjoncteur basse tension et disjoncteur comportant un tel dispositif
FR3030870B1 (fr) * 2014-12-19 2018-01-05 Schneider Electric Industries Sas Dispositif de commutation electrique muni de moyens de signalisation de la presence de blocs auxiliaires
FR3051593B1 (fr) * 2016-05-23 2019-10-04 Schneider Electric Industries Sas Dispositif de signalisation d'un defaut electrique dans un appareil de protection electrique, et appareil de protection electrique comportant un tel dispositif.
CN109755078B (zh) * 2017-11-07 2020-05-29 施耐德电气工业公司 低压配电装置及用于控制低压配电装置脱扣的方法
CN108227825B (zh) * 2018-01-25 2023-09-22 柳工常州机械有限公司 操作手柄助停装置
FR3087273B1 (fr) * 2018-10-15 2020-11-06 Schneider Electric Ind Sas Dispositif de mesure et appareil de commutation electrique

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2616583A1 (fr) 1987-06-09 1988-12-16 Merlin Gerin Mecanisme de commande d'un disjoncteur electrique miniature
EP0342133A1 (de) 1988-05-13 1989-11-15 Merlin Gerin Betätigungsmechanismus für Kleinschalter mit Anzeige einer Kontaktschweissung
FR2660794A1 (fr) 1990-04-09 1991-10-11 Merlin Gerin Mecanisme de commande d'un disjoncteur electrique.
EP0897186A2 (de) * 1997-08-14 1999-02-17 Siemens Aktiengesellschaft Schaltmechanismus für einen Schulzschalter
EP1542253A1 (de) * 2003-12-08 2005-06-15 Schneider Electric Industries SA Anzeigeeinrichtung einer Auslöseeinrichtung eines elektrischen Schutzgeräts

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795860B1 (fr) * 1999-07-02 2001-09-14 Schneider Electric Ind Sa Module auxiliaire de signalisation pour un appareil electrique a declencheur
FR2859816B1 (fr) * 2003-09-11 2006-04-07 Legrand Sa Dispositif de coupure de courant electrique a discrimination complete d'etats

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2616583A1 (fr) 1987-06-09 1988-12-16 Merlin Gerin Mecanisme de commande d'un disjoncteur electrique miniature
EP0342133A1 (de) 1988-05-13 1989-11-15 Merlin Gerin Betätigungsmechanismus für Kleinschalter mit Anzeige einer Kontaktschweissung
FR2660794A1 (fr) 1990-04-09 1991-10-11 Merlin Gerin Mecanisme de commande d'un disjoncteur electrique.
EP0452230A1 (de) * 1990-04-09 1991-10-16 Merlin Gerin Antriebsmechanismus für Schutzschalter
EP0897186A2 (de) * 1997-08-14 1999-02-17 Siemens Aktiengesellschaft Schaltmechanismus für einen Schulzschalter
EP1542253A1 (de) * 2003-12-08 2005-06-15 Schneider Electric Industries SA Anzeigeeinrichtung einer Auslöseeinrichtung eines elektrischen Schutzgeräts

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019091405A1 (zh) * 2017-11-07 2019-05-16 施耐德电气工业公司 能够检测预定状态的低压配电装置
RU2742134C1 (ru) * 2017-11-07 2021-02-02 Шнейдер Электрик Эндюстри Сас Низковольтный распределяющий мощность аппарат, выполненный с возможностью обнаружения предварительно определенного состояния
EP4040463A1 (de) * 2021-02-09 2022-08-10 Schneider Electric Industries SAS Schnellschlussstruktur für gleichstromleistungsschalter und gleichstromleistungsschalter

Also Published As

Publication number Publication date
CN101599394B (zh) 2015-05-20
EG25279A (en) 2011-12-05
AU2009202174B2 (en) 2014-12-04
CN101599394A (zh) 2009-12-09
FR2931998A1 (fr) 2009-12-04
AU2009202174B9 (en) 2015-04-23
AU2009202174A1 (en) 2009-12-17
BRPI0902025B1 (pt) 2020-03-31
RU2009120937A (ru) 2010-12-10
ZA200902898B (en) 2009-12-30
RU2502149C2 (ru) 2013-12-20
BRPI0902025A2 (pt) 2010-04-13
ES2534633T3 (es) 2015-04-27
EP2131378B1 (de) 2015-01-14

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