WO2011057753A1 - Commutateur d'installation électrique - Google Patents

Commutateur d'installation électrique Download PDF

Info

Publication number
WO2011057753A1
WO2011057753A1 PCT/EP2010/006801 EP2010006801W WO2011057753A1 WO 2011057753 A1 WO2011057753 A1 WO 2011057753A1 EP 2010006801 W EP2010006801 W EP 2010006801W WO 2011057753 A1 WO2011057753 A1 WO 2011057753A1
Authority
WO
WIPO (PCT)
Prior art keywords
lever
axis
switching device
opening
contact
Prior art date
Application number
PCT/EP2010/006801
Other languages
German (de)
English (en)
Inventor
Ralf Weber
Original Assignee
Abb Ag
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 Abb Ag filed Critical Abb Ag
Priority to EP10778567A priority Critical patent/EP2502250A1/fr
Publication of WO2011057753A1 publication Critical patent/WO2011057753A1/fr

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
    • H01H71/50—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
    • H01H71/521—Details concerning the lever handle
    • 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
    • H01H71/50—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 invention relates to an electrical installation switching device, in particular a circuit breaker, with a magnetic release and / or with a thermal trigger see, with a switch lock with a Verklinkungsstelle, with a mounted in an axis switch knob for manual operation of the switch latch, wherein the switch knob by means of a Coupling element is connected to one end of an intermediate lever, wherein the other end of the intermediate lever is coupled to a movable contact piece carrying the contact lever, wherein the switch knob is a Doppelarmhebel with a handle and at least one projection, and wherein in the projection a through hole is introduced, in the one leg of the coupling element is inserted, according to the preamble of claim 1.
  • a generic service switching device usually has a contact point formed by a fixed and a movable contact piece, wherein the movable contact piece is held on a pivotally mounted contact lever.
  • a generic installation switching device comprises a magnetic trigger with magnetic armature and a thermal release, as well as a releasable from the thermal and the magnetic release switch lock with a Verklinkungsstelle. This is formed by a release lever and a stationary rotatably mounted, a slot for guiding a bracket having latch lever.
  • the magnet armature can act on the opening of the contact point bearing on the movable contact piece contact lever and the switch lock can hold the contact lever permanently in the open position.
  • a generic installation switching device comprises a switch knob for manual operation of the switching mechanism, and an intermediate lever which is hinged at its one end to the contact lever and with its other end to the bracket, wherein the bracket is articulated with at least one leg on the switch knob.
  • CONFIRM 10N COPY The contact lever is acted upon in generic service switching devices by the force of a contact pressure spring, which is so directed to the contact lever that it presses in the closed position, the movable contact piece against the fixed contact piece, and pushes in the off position, the movable contact piece of the fixed contact piece.
  • the intermediate lever is the link between the rear derailleur and the contact lever.
  • Such a service switching device is shown, for example, in DE 10 2008 006 863 A1 and in DE 10 2005 041 231 A1.
  • DE 10 2008 006 863 A1 and DE 10 2005 041 231 A1 should therefore be explicitly included in the disclosure of the present invention.
  • the contact opening i.e. the angle at which the contact lever can rotate away from the fixed contact at the contact opening.
  • the opening movement of the contact lever is coupled with the movement of the ratchet lever.
  • the contact lever can push the latch lever too far down, away from the trigger. Then, when you turn the latch lever may not meet the latch surface on the release lever, so that it does not come to a proper latching, whereby the closing of the contact point and thus the reconnection is prevented.
  • the passage opening is formed as an oblong hole whose longitudinal axis forms an angle ⁇ of less than 45 ° with the longitudinal central axis of the control handle extending through the axis.
  • the angle between the longitudinal axis of the oblong hole and the central longitudinal axis of the control handle has the advantage that when the switching knob is switched back on, the clip snaps upwards despite the oblong hole and the latching lug of the pawl lever immediately rests against the corresponding latch surface of the trigger lever. This avoids the occurrence of a mechanical play or an overstroke when switching on again.
  • the angle ⁇ is between 5 ° and 20 °. According to a further advantageous embodiment of the invention, the angle ⁇ is between 10 ° and 13 °.
  • a further advantageous embodiment of an electrical installation switchgear according to the invention is characterized in that the switching knob has diametrically opposite the handle two fork-shaped projections which leave a one-sided open receiving space between them, wherein in each of the two projections a passage opening in the form of an elongated hole is formed ,
  • the coupling element is a U-shaped bracket with a U-leg connecting the strap web.
  • Figure 1 is an insight into an inventive installation switching device, with open contact point
  • Figure 2 is a view of a switch knob according to the invention
  • Figure 3 is an insight into an inventive installation switching device, with closed contact point.
  • FIG. 1 shows the rear derailleur in the off, or in the latched state.
  • the elongated hole according to the invention in the projection of the switch knob can not be clearly seen in this illustration, since it is concealed by other components.
  • Fig. 2 the switch knob is shown separately, with emphasis on the slot.
  • An installation switching device here a circuit breaker, which is designated in its entirety by the reference numeral 10, has a housing, which is composed of two housing half-shells, of which only the first housing half-shell 1 is partially shown.
  • This housing half shell 11 has like the supplementary, not shown, the second housing half shell a front front wall 12 and two rear front walls, of which in Figure 1, only a rear front wall 13 can be seen, of which in the figure, only one front side wall 14 can be seen connected to each other. Further belonging to the housing rear narrow side walls, and a mounting side and broad sides of the housing can not be seen in the illustration of Figure 1.
  • each housing half shell has a width which corresponds to half the standard module width.
  • the housing half shell has a corresponding dimension, which is selected so that it reaches the module width together with the lid.
  • the switching knob 19 has an opening 201 (see FIG. 2), which can be regarded as a virtual axis of rotation of the switch knob, and through which it is mounted on a housing-fixed axis 20.
  • the switching handle 18 diametrically opposite side are two fork-shaped projections 21, 22 (see also Fig. 2), of which in the illustration of Figure 1, only one projection 21 is visible.
  • the two projections 21, 22 leave between a one-sided open receiving space 23 free.
  • Each of the two projections 21, 22 has at its end facing away from the handle 18 a slot-like opening 24, 25.
  • the longitudinal center axis 181 of the handle 18 passes through the center of the opening 201.
  • the slot-like opening 24, 25 has a longitudinal axis 241. This forms with the longitudinal center axis 181 of the control handle 18 an angle ⁇ of less than 45 °, here an angle approximately in the range between 10 ° and 15 °.
  • the connecting the two U-legs strap web 30 of the bracket 27 engages in two latching openings 31 of an intermediate lever 33 a.
  • the intermediate lever 33 has at its one end a projecting into two fork-shaped projections U-profile, each of the two fork-shaped projections each terminal has a latching opening 31.
  • the bar web 30 engages in a slot of a below the intermediate lever 33 and arranged partially in the U-profile - recess between the two terminal projections of the intermediate lever 33 extending latch lever 37 and through it.
  • the U-shaped bracket 27 is guided with its strap web 30 in the slot of the ratchet lever 37, and at the same time is the intermediate lever 33 hinged with its latching openings 31 on the strap web 30.
  • the switch knob 19, the intermediate lever 33 and the latch lever 37 thus form a coupled together by the bracket 27 assembly.
  • a pin 38 are integrally formed on each side, with which it is fixed and rotatably mounted in a two-shell housing in two housing halves or in a single-shell housing with a lid in the housing shell and the lid.
  • the longitudinal direction of the intermediate lever 33, the pawl lever 37 and the legs of the bracket 27 extend approximately parallel to the broad side of the device housing.
  • a release lever 40 is rotatably mounted to the fixed axis 20, which coincides with the axis of rotation of the switch knob 19, a release lever 40 is rotatably mounted.
  • This is designed approximately L-shaped, with its first arm having at its free end a joint head with a loop-shaped opening with which it is rotatably mounted on the stationary shaft 20.
  • Its second arm 43 (see Fig. 3) is formed approximately at right angles to the first arm.
  • the first arm has approximately in its middle a locking surface 44.
  • the first arm of the release lever 40 carries a latching lug.
  • the release lever 40 is inserted with its first arm in the receiving space 23 between the two fork-shaped projections 21, 22 of the switch knob 19 so that the central axis of its eye-shaped opening coincides with the central axis of the opening of the switch knob 19.
  • the opening of the switch knob sits on a bead surrounding the eye-shaped opening on which it is rotatably supported.
  • the release lever 40 is pivotally supported on the axis 20, and the switch knob 19 is pivotally supported on the release lever 40.
  • the latch lever 37 carries at its one free end a nose 49 which forms the Verklinkungsstelle of the switch lock together with the locking surface 44 on the release lever 40 in the Verklinkungswolf of the release lever 40.
  • the circuit breaker 10 is shown with latched rear derailleur.
  • the release lever 40 is pivoted clockwise in the view of Figure 3 to the pawl lever 37 out.
  • the intermediate lever 33 has at its end remote from the bracket 27 a recess 60. At this recess, it is connected by means of a cylindrical pin 61 hinged to the contact lever 62.
  • the contact lever 62 is designed as a double-arm lever and rotatably mounted in a slot 66 on a fixedly connected to the first housing half-shell 11 axis 63, so that a first part lever 64 from the stationary axis 63 in the direction of the front front wall 12 points out, and a second Part lever 65 points from the stationary axis 63 in the direction of the attachment side of the housing. At the free end of the first partial lever 64 this carries the positively connected with him pin 61. The pin 61 thus forms the coupling point between the link chain 50 and the contact lever 62nd
  • the first part lever 64 has a U-shaped contour with a receiving space 67 formed by the leg extending approximately parallel to the broad sides of the housing, which opens in the direction of the front side wall 14, and whose one leg has a recess, so that the receiving space 67 is accessible from the broad side of the removed housing half shell with the housing open.
  • the second part lever 65 carries at its free end the movable contact piece 68th
  • FIG. 3 Here the circuit breaker is shown in the closed position.
  • the switching handle 18 is in the closed position, the nose 49 on the pawl lever 37 is latched to the locking surface 44 on the trigger lever 40.
  • the intermediate lever is blocked and the pin 61 at the coupling point between the link chain 50 and the contact lever 62 now forms the axis of rotation for the contact lever 62.
  • the contact pressure spring 69 presses the contact lever 62 counterclockwise, thus providing the contact between the movable contact piece 68 and the fixed contact piece 70 safely.
  • the coil 72 of the magnetic release 73 and a strip 74 of bimetallic or a shape memory alloy as part of the thermal release 75.
  • the magnetic release 73 and the thermal release 75th lie with respect to a running through the contact lever 62, imaginary plane which is perpendicular to the first housing half shell 11, on different sides.
  • the magnetic release 73 or the thermal release 75 When triggered, the magnetic release 73 or the thermal release 75 to open the latch 49 formed by the nose 49 on the pawl lever 37 and the locking surface 44 on the release lever, so that the switching mechanism is thereby unlatched and the contact lever 62 by the contact pressure spring 69 in the in the figure 1 shown switch off position can go over.
  • the magnetic release and the thermal release are mechanically coupled to the release lever 40.
  • the mechanical coupling between the magnetic release 73 and the thermal release 75 with the release lever 40 via a stationary rotatably mounted hammer 77 occurs.
  • axis 76 designed as a double arm lever whip lever 77 is pivotally mounted.
  • a first partial arm 78 of the striking lever 77 points from the stationary axis 76 in the direction of the attachment side of the housing. He has an eye-shaped opening
  • the second leg of the transfer bracket 80 is guided displaceably in a guide groove 81 of the housing.
  • the side walls 82 of the guide groove 81 are designed so deep, and the second leg of the transfer bracket 80 is carried out correspondingly so long, that of the strip 74 of the thermal release 75, when it bends when heated in the direction of arrow R, ie here counterclockwise , the side walls 82 of the guide groove 81 can drive over and thereby the transmission bracket
  • the transmission bracket 80 pivots the hammer 77 in a clockwise direction, and this acts with its second arm 83 on the release lever 40, that it pivots counterclockwise, so that the locking surface 44 is away from the nose 49 and thus the latch is unlatched.
  • the hammer 76 also has a nose 84 which projects in the direction of the second partial lever 65 of the contact lever 62. Now, if the striker pivots the hammer 77 in a clockwise direction during a magnetic release, then the nose 84 strikes the contact lever 62 after the unlatching of the latching point and strikes it in the switch-off position shown in FIG. In this case, the movable contact piece 68 is torn away from the fixed contact piece 70, wherein an arc is formed, which is deleted in a here in the figures by the reference numeral 85, only partially indicated arc quenching.
  • the arc quenching device comprises in a known manner an arc splitter stack with a pre-chamber space, which may be bounded by Vorsch-cover plates parallel to the GeHousebreit- sides, and to which the arc is passed by means of two arc guide rails out.
  • a second projection or a second nose 284 which points to the contact lever 62.
  • the second nose 284 serves to limit the Verschwenkungsweges of the hammer 77 when it is pivoted in a thermal or magnetic release in a clockwise direction.
  • a second stop 290 is fixedly formed for this purpose, see FIG. 1.
  • the percussion lever 77 lies in its longitudinal direction approximately in an imaginary plane which is perpendicular to the housing half shell 11 and extends through the contact point formed from the movable and the fixed contact piece 68,70. In this way, a very compact and space-saving mutual arrangement of subassemblies switch lock, magnetic release, thermal release, contact lever with contact point can be realized.
  • the switch lock, the contact lever 62 with the contact point, the thermal release 75 and the hammer 77, so almost all mechanically moving parts are arranged together in a first half-space of the housing, extending from an imaginary center plane perpendicular to the housing sides through the Focus the axis 20 of the switch knob 19 extends, extending to a narrow side of the housing.
  • the arc quenching device 85 and the magnetic release 73 is housed in the other half space of the housing, which extends from the imaginary center plane to the opposite narrow side of the housing.
  • the transmission bracket 80 and the first arm 78 of the hammer 77 form an angle of approximately 90 °.
  • the second arm 43 of the release lever 40 also forms an angle of approximately 90 ° with the second partial arm 83 of the hammer 77.
  • the first arm 78 and the second arm 83 of the hammer 77 are approximately equal in length.
  • the thus designed lever arrangement ensures a very effective transmission of force from the strip 74 of the thermal release 75 via the transmission bracket 80 and the hammer 77 on the release lever 40, because because of the prevailing leverage ratio of 1: 1 and the right angle, the tensile force of the Transfer bracket 80 unabated transferred to the release lever 40.
  • the contact pressure spring 69 In the off position shown in Figure 1 presses the contact pressure spring 69, which crashes with one end on the front side wall 14 of the housing, and with its second end in the receiving space 67 of the first partial lever 64, the contact lever 62 about the stationary axis 63 in Clockwise, so that the movable contact piece 68 is pushed away from the fixed contact piece 70.
  • the movement path of the contact lever 62 is limited by a stop 71 fixedly connected to the first housing half shell, in other words, in the switch-off position, the contact lever 62 bears against the stationary stop 71.
  • the fixed stopper 71 is formed by a bolt integrally connected to the housing half shell, which can be manufactured together with the housing half shells in an injection molding process, for example.
  • the contact lever 62 pushes the action of the intermediate lever 33 with the pawl lever 37, the end of the bracket 27 which is held in the long hole-like opening 24, in this direction away from the Verklinkungsstelle.
  • the bracket 27 can thus obliquely above, in the slot-like opening 24 in and thus avoid the Verklinkungsstelle. If the opening 24 is not an oblong hole, but a round eye, which is exactly adapted to the diameter of the end of the bracket 27, the bracket could be at wide open contact lever 62 only after dodge down towards the latching point.

Landscapes

  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

L'invention concerne un commutateur d'installation électrique (10), en particulier un disjoncteur de protection, comprenant un déclencheur magnétique (73) et/ou un déclencheur thermique (75), un verrou de maintien présentant un point d'encliquetage (49, 45), une manette de commutation (19) montée dans un axe (20), pour la commande manuelle du verrou de maintien, qui est liée, au moyen d'un élément d'accouplement (27), avec une extrémité d'un levier intermédiaire (33), dont l'autre extrémité est accouplée avec un levier de contact (62) portant la pièce de contact mobile (68). La manette de commutation (19) est un levier à deux bras présentant une poignée de commutation (18) et au moins une saillie (21), une ouverture traversante (24) étant prévue dans la saillie (21), ouverture dans laquelle est introduite une branche de l'élément d'accouplement (27). L'ouverture traversante (24) est configurée en tant que trou oblong, dont l'axe longitudinal (241) forme, avec l'axe médian longitudinal (181) de la poignée de commutation (18) passant par l'axe (20), un angle (ƒ¿) inférieur à 45‹.
PCT/EP2010/006801 2009-11-16 2010-11-09 Commutateur d'installation électrique WO2011057753A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10778567A EP2502250A1 (fr) 2009-11-16 2010-11-09 Commutateur d'installation électrique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910053012 DE102009053012A1 (de) 2009-11-16 2009-11-16 Elektrisches Installationsschaltgerät
DE102009053012.6 2009-11-16

Publications (1)

Publication Number Publication Date
WO2011057753A1 true WO2011057753A1 (fr) 2011-05-19

Family

ID=43480406

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/006801 WO2011057753A1 (fr) 2009-11-16 2010-11-09 Commutateur d'installation électrique

Country Status (4)

Country Link
EP (1) EP2502250A1 (fr)
CN (1) CN201732747U (fr)
DE (1) DE102009053012A1 (fr)
WO (1) WO2011057753A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2103070A (en) * 1933-03-06 1937-12-21 Bulldog Electric Prod Co Circuit breaker
FR2331879A1 (fr) * 1975-11-13 1977-06-10 Legrand Sa Disjoncteur, en particulier disjoncteur multipolaire
WO2005091323A1 (fr) * 2004-03-17 2005-09-29 Abb Patent Gmbh Mecanisme de commutation pour appareil de distribution d'installation electrique
DE102005041231A1 (de) 2005-08-31 2007-03-01 Abb Patent Gmbh Elektrisches Schaltgerät
DE102008006863A1 (de) 2007-05-23 2009-01-22 Abb Ag Elektrisches Installationsschaltgerät

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2103070A (en) * 1933-03-06 1937-12-21 Bulldog Electric Prod Co Circuit breaker
FR2331879A1 (fr) * 1975-11-13 1977-06-10 Legrand Sa Disjoncteur, en particulier disjoncteur multipolaire
WO2005091323A1 (fr) * 2004-03-17 2005-09-29 Abb Patent Gmbh Mecanisme de commutation pour appareil de distribution d'installation electrique
DE102005041231A1 (de) 2005-08-31 2007-03-01 Abb Patent Gmbh Elektrisches Schaltgerät
DE102008006863A1 (de) 2007-05-23 2009-01-22 Abb Ag Elektrisches Installationsschaltgerät

Also Published As

Publication number Publication date
CN201732747U (zh) 2011-02-02
DE102009053012A1 (de) 2011-05-19
EP2502250A1 (fr) 2012-09-26

Similar Documents

Publication Publication Date Title
EP1760748B1 (fr) Appareil de commutation électrique
EP1995754B1 (fr) Commutateur d'installation électrique
EP1760747B1 (fr) Disjoncteur électrique
DE102008006863A1 (de) Elektrisches Installationsschaltgerät
DE102006051807B3 (de) Elektrischer Schalter
EP2634787B1 (fr) Mécanisme de verrouillage d'un disjoncteur
EP1812944A1 (fr) Dispositif de commutation electrique d'une installation
EP0091040B1 (fr) Disjoncteur de protection à courant excessif
EP2502250A1 (fr) Commutateur d'installation électrique
EP2479770A1 (fr) Commutateur d'installation
DE102011008834A1 (de) Installationsschaltgerät
EP0849759B1 (fr) Appareil de coupure pour une installation électrique
DE102009051929B4 (de) Elektrisches Installationsschaltgerät mit einem Schlaghebel
DE3023512A1 (de) Elektrisches installationsgeraet, insbesondere selbstschalter
EP1659604B1 (fr) Appareil de commutation pour une installation électrique
EP2608233A1 (fr) Commutateur de séparation de charge électrique pour basses tensions
EP0851449B1 (fr) Appareil de commutation pour une installation électrique
EP0997922A2 (fr) Interrupteur avec un indicateur de position ou d'état, notamment pour un disjoncteur
DE10124985B4 (de) Auslösevorrichtung eines Schutzschalters und Schutzschaltersystem
DE102012001336A1 (de) Elektrischer Lasttrennschalter für Niederspannung
DE3530635A1 (de) Schaltwerk fuer einen elektrischen schalter
DE10324390A1 (de) Elektrische Auslöseeinrichtung für einen elektrischen Schalter
DE102005046640A1 (de) Elektrisches Installationsgerät

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10778567

Country of ref document: EP

Kind code of ref document: A1

REEP Request for entry into the european phase

Ref document number: 2010778567

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2010778567

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE