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EP0454018A2 - Appareil de commutation électrique - Google Patents

Appareil de commutation électrique Download PDF

Info

Publication number
EP0454018A2
EP0454018A2 EP91106418A EP91106418A EP0454018A2 EP 0454018 A2 EP0454018 A2 EP 0454018A2 EP 91106418 A EP91106418 A EP 91106418A EP 91106418 A EP91106418 A EP 91106418A EP 0454018 A2 EP0454018 A2 EP 0454018A2
Authority
EP
European Patent Office
Prior art keywords
switch
switching device
bracket
coupling member
contact
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
EP91106418A
Other languages
German (de)
English (en)
Other versions
EP0454018A3 (en
EP0454018B1 (fr
Inventor
Erwin Muders
Rudolf Sellner
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.)
ABB Patent GmbH
Original Assignee
ABB Patent 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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0454018A2 publication Critical patent/EP0454018A2/fr
Publication of EP0454018A3 publication Critical patent/EP0454018A3/de
Application granted granted Critical
Publication of EP0454018B1 publication Critical patent/EP0454018B1/fr
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
    • 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
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/48—Driving mechanisms, i.e. for transmitting driving force to the contacts using lost-motion device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs

Definitions

  • the invention relates to an electrical switching device according to the preamble of claim 1.
  • Such an electrical switching device which can be used as an auxiliary switch attachment for circuit breakers, has become known from DE-GM 74 26 189.
  • the movable contact pieces are arranged on contact bridges which are mounted in a displaceable contact bridge support which can be actuated by a self-switch via a crank-like coupling element.
  • this attachment only contains an auxiliary switch and no signal switch.
  • a switching device which has two switch poles which serve as auxiliary switches and as signal switches has become known from DE-PS 31 19 165.
  • the switch pole that serves as an auxiliary switch takes should always be the position of the contact points of the circuit breaker to which it is assigned, whereas the switch pole, which is to act as a signal switch, only switches when the circuit breaker has triggered automatically, i.e. has opened automatically due to a short circuit or overcurrent. If the circuit breaker is switched manually, this has no effect on the signal switch.
  • the design with contact rockers, corresponding switching elements and actuators is relatively complicated.
  • An electrical switching device of the type mentioned is known from EP-A 0 303 965.
  • This switching device is connected to a circuit breaker and adapted to the contour of the circuit breaker. It has two control handles that act separately on the auxiliary switch switch pole and the signal switch switch pole. This arrangement can essentially be used for installation switchgear, but not simply for residual current circuit breakers.
  • the object of the invention is to design an electrical switching device of the type mentioned in the introduction so that it can be used in particular when only a rotating connection for actuating the auxiliary switch and / or the signal switch is provided.
  • the auxiliary switch is actuated via a coupling member which is connected to the contact roller of the installation switching device.
  • the contact roller is an axis of rotation which is coupled to the movable contact lever and about which the contact lever rotates.
  • the contact roller and the coupling member are provided with conically interlocking recesses or projections, in such a way that in one version the contact roller has a conically tapering recess towards the bottom and the coupling member is correspondingly one tapering extension or the contact roller has a tapering extension towards the free end and the coupling member has a correspondingly designed and adapted recess. Due to the spring which is formed on the housing of the switching device, the extension is pressed into one another into the recess and thus a play-free connection between the contact roller and the coupling piece.
  • the associated contact element is held in two contact positions by a spring arrangement which presses on the tab on which the contact element is fastened and on which the connecting bracket between the coupling member and the tab engages.
  • the spring and bracket arrangement rotates the tab and thus the contact elements into one stable or the other stable position in which the contact element interacts with a fixed contact.
  • the auxiliary switch is actuated, which interacts in the same direction with the contact apparatus of the installation switching device, that is to say the line circuit breaker or the residual current circuit breaker.
  • the switching device also has a second switch pole with which the switching position is signaled, in particular when the installation switching device has triggered and opened automatically due to a short-circuit current, overcurrent or fault current.
  • a slide is provided with which the coupling element designed in accordance with claim 12 interacts.
  • This slide has a recess for receiving the corresponding crank pin of the coupling member and accordingly a correspondingly designed shape in the region of this recess, so that a defined transmission surface of the movement of the slide on the release lever is generated.
  • control handle is divided into two control handle parts, similar to the switching device according to EP-A 0 303 965.
  • the control handle part which is used to actuate the switch pole, which serves as a signal switch, has according to the characterizing features of claim 14 a hook which cooperates with one end of a transmission bracket and in such a way that the transmission bracket is only taken away by the hook in the closed position.
  • the switch pole serving as a signal switch can be switched on manually, but cannot be switched off manually because the switching handle part is designed accordingly;
  • the hook acts in one direction and a part corresponding to the hook is not provided in the other direction, so that in the switched-on state the switching handle part can be pivoted back and forth without acting on the switch pole.
  • FIGS. 1 and 2 an assignment of a switching device similar to that of the present invention to circuit breakers is shown, FIG. 2 showing the switching device individually in a perspective view.
  • FIG. 3 of EP-A 0 303 965 shows an insight into the switching device according to FIG. 2 of EP-A 0 303 965
  • FIG. 8 shows that known switching device in modified form and virtually from the rear.
  • the following description refers to the content of EP-A 0 303 965 insofar as the reference numbers in brackets correspond to the reference numbers of the embodiment according to EP-A 0 303 965.
  • the switching device has a housing 10 (40) with terminals 11 (25) and terminals 12 (25).
  • a terminal lug 13 (60) is formed on the clamp shown at the top left in the drawing, and a fixed contact piece 14 is attached to its free end located inside the housing 12.
  • a third terminal lug 17 is formed on the terminal of the terminal 11 in the bottom area, to which a stranded conductor 18 (50) is attached, the other end of which is attached to a bearing part 19 (54) for a contact spring 20 (56) with a movable contact piece 21 (without reference number) is articulated.
  • the movable contact piece 21 swings back and forth between the two fixed contact pieces 14 and 16 depending on the drive direction.
  • a transfer bracket 22 (58) is articulated on the bearing piece 19, the other end of which is articulated on a release lever 23 (76). This release lever interacts with a ratchet lever 24 (78) to form a latching point 25 (77).
  • a slide 26 is drawn in front of the release lever 23, which, apart from certain modifications, corresponds to the slide 80 of EP-A 0 303 965.
  • the slider 26 has an L-shaped configuration, the one leg 27 having an elongated hole-like recess 28 which is delimited in the region of the outside of the leg 27 by a projection 29 which presses against the latch lever 24 in order to unlatch the latching point 25 .
  • the pawl lever 24 is acted upon by a spring 30.
  • the pawl lever 24 is mounted in the same way as the pawl lever 78 in an axis of rotation 31 which passes through a banana-like recess 32 (82).
  • a transmission bracket 33 (75), the other end of which cooperates with a hook 34 on the control handle 35 such that when switched on, that is to say when the control handle moves in the direction of arrow E, the hook presses the transmission bracket 33 downward , so that the element 19 is rotated so that the movable contact piece 21 can be rotated from the position shown in Figure 8 to the position in which the movable contact piece cooperates with the fixed contact piece 16.
  • a residual current circuit breaker 40 can be seen purely schematically, which has a pin 41 which swings approximately perpendicular to the plane of the drawing and which is connected to the switch lock of the residual current circuit breaker, which is not shown in detail.
  • an intermediate piece 44 Connected to the broad side 43 of the residual current circuit breaker 40 is an intermediate piece 44 which is approximately T-shaped in cross section and which has an outer wall 45 which corresponds to the outer contour of the switching device according to the invention.
  • an intermediate wall 46 is provided, which is formed approximately in the center at a distance from the respective ends of the housing wall and which has an elongated hole 47, which again runs approximately perpendicular to the plane of the drawing.
  • two locking pins 48 and 49 are formed with locking lugs 50 and 51 formed at the ends thereof, which reach through an opening 52 of a coupling member 53, are locked behind recesses 54 and allow the coupling member 53 to be rotatably supported.
  • the coupling member 53 has an approximately cylindrical shape, and a crank pin 55 and 56 are formed on diametrically opposite ends on the opposite side, the crank pin 55 engaging through an elongated hole 57 in the broad side wall 43 extending approximately perpendicular to the plane of the drawing.
  • the crank pin 55 has a blind hole depression 58, in which the pin 41 engages.
  • crank pin 56 On the opposite end of the coupling member 53 sits the crank pin 56, which extends through the elongated hole 47 and on the other side of the intermediate wall 46, in which there are those parts which are visible in FIG. 8, in the elongated hole recess 28 of the leg 29 of the Slider 26 engages.
  • the release lever 23 or ratchet lever 24 and the like located behind the slide 26 in FIG. 8 would be arranged to the right of the slide 26 in the embodiment according to FIG. 7 and in the illustration.
  • the elongated holes 57 and 47 are accordingly formed as a circular arc, the circular radius of which corresponds to the turning radii of the crank pins 55 and 56 in relation to the axis of rotation of the coupling member 53; this axis of rotation is the line of symmetry of the two arms 48 and 49, indicated by dash-dotted lines.
  • the free end of the housing wall 45 is covered by a cover 60.
  • the residual current circuit breaker 40 is connected to the switching device, designated as a whole by 61, by means of snap holding brackets 62 and 63.
  • the switching device designated as a whole by 61, by means of snap holding brackets 62 and 63.
  • all other types of connecting links can also be provided.
  • FIG. 9 shows the switching device 61 with the residual current circuit breaker 40 removed in accordance with the direction of the arrow P.
  • the crank pin 55 and the two lugs 50 and 51 of the coupling member 53 can be seen.
  • a recess 64 in the intermediate wall 46 also shows the transmission bracket 33 and the slide 26.
  • the residual current circuit breaker, the intermediate wall 46, the housing wall 45 and the cover 60 can be seen there.
  • the residual current circuit breaker which is also only used for Part is shown, as already indicated in FIG. 7, has a contact roller 70 which is connected to a movable contact lever (not shown) and forms its axis of rotation and which is mounted with a pin 71 in a hole 72 in the side wall of the residual current circuit breaker.
  • the contact roller 70 more precisely the pin 71, has at its or its free end a recess or depression 73 which tapers conically from the free end to the bottom and has a profile shape.
  • a conical pin 74 of a coupling member 75 engages, which coupling member has a central recess 76 which is open to the outside via a lateral recess 78, so that a recess 77 is formed, behind which a nose 79 grips an arm 80.
  • a further locking arm 81 is assigned to the locking arm 80, which, however, does not have a nose, but only takes on management tasks.
  • the detent 79 is removed from the recess 77 by the dimension A.
  • a spring 81 is formed on the intermediate wall 46, which presses against the coupling member 75 with a projection 82 and presses the coupling member into the recess 73 with the pin 74. The position of the spring 81 can be seen in FIG. 1, in which the distance between the detent 79 and the recess 77 is zero.
  • the coupling member 75 has an eccentric through-hole 83 which runs in the axial direction of the coupling member 75 and into which the angled end 84 of a transmission bracket 85 engages;
  • the bracket 85 is guided by means of an L-shaped bracket 86 formed on the intermediate wall 46, so that it can move approximately in its longitudinal direction.
  • FIG. 3 shows the coupling member 75 in a top view in the direction of the arrow P.
  • the pin 74, the hole 83 and a cross section through the end 84 and the bracket 85 can be seen.
  • the hole 83 is designed as an elongated hole which has an arcuate shape, the center line of which 87 has its center in the pivot point of the coupling member 75.
  • the other end of the bracket 85 is articulated on a tab 90 which can be rotated about a fixed axis 91 and on which a contact spring 92 with a movable contact 93 is attached.
  • the axis of rotation 91 of the bracket 90, the articulation point of the bracket 85 on the bracket and the contact spring 92 lie on a line 94.
  • a compression spring 95 presses on the bracket 90, the line of force 96 or direction of force 96 in the figure 3 position, which represents a dead center position, runs through the axis of rotation 91 of the bracket 90 and through the connecting line between the axis of rotation 91 and the articulation point 97 of the bracket 85 on the bracket 90.
  • FIG. 5 shows the arrangement according to FIG. 3 in a first stable position, in which the movable contact piece 93 interacts with a first fixed contact piece 98.
  • the line of force 96 of the spring 95 no longer runs through the center of the axis of rotation 91, but is shifted at an angle which is pivoted from the dead center position (see FIG. 3) to the articulation point 97.
  • a torque D M acts on the tab 90, which presses the movable contact piece 93 against the fixed contact piece 98.
  • the coupling member 75 has reached its end position in the embodiment according to FIG. 3, the end 84 moves by an angle from the end 99 of the elongated hole 83, and there is still a distance a between this end 99 and the opposite end 100 of the elongated hole .
  • the coupling member 75 pivots about a central line M 1, in each case to the extent that in one stable position, FIG. 3, one end 99 of the elongated hole 83 cuts this line M 1, whereas in the other stable position, FIG 6, the other end 100 of the elongated hole 83 tangent to the line M 1.
  • the distance a of the end 84 from the end 99 of the elongated hole 83 in a stable position is equal to the distance a of the end 84 from the other end 100 of the elongated hole 83.
  • the transmission bracket 85, the coupling member 75 and the elongated hole 83 can be seen in FIG. 9.
  • FIGS. 1 to 6 are schematic and in the actually implemented embodiment the tab 90 can be seen, the compression spring 95 with the contact spring 92 formed on the tab 90, at the end of which the movable contact piece 93 is seated.
  • the turning axis 91 of the lug 90 is shown as well as the articulation point 97 of the transmission bracket, which is not visible in FIG. 8;
  • the assignment of the movable contact piece 93 or the contact spring 92 to the connecting line between the axis of rotation 91 and the articulation point 97 differs from the embodiment according to FIGS. 3 to 6.
  • the contact spring 92 runs parallel to this; it is also irrelevant that the contact spring 92 is aligned with the connecting line.
  • the other ratios, in particular the force effect of the compression spring 95, are identical to the ratios shown in FIGS. 3 to 6.
  • the movable contact piece 93 (in relation to FIG. 3 of EP-A 0 303 965 the contact spring 57) interacts with the movable contact piece 93 with two connecting lugs 102 (63) and 103 (61), each of which is connected to the corresponding connection terminals 12 (25) are connected.

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EP91106418A 1990-04-26 1991-04-22 Appareil de commutation électrique Expired - Lifetime EP0454018B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4013272A DE4013272A1 (de) 1990-04-26 1990-04-26 Elektrisches schaltgeraet
DE4013272 1990-04-26

Publications (3)

Publication Number Publication Date
EP0454018A2 true EP0454018A2 (fr) 1991-10-30
EP0454018A3 EP0454018A3 (en) 1992-09-23
EP0454018B1 EP0454018B1 (fr) 1994-12-28

Family

ID=6405109

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91106418A Expired - Lifetime EP0454018B1 (fr) 1990-04-26 1991-04-22 Appareil de commutation électrique

Country Status (2)

Country Link
EP (1) EP0454018B1 (fr)
DE (2) DE4013272A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0583762A1 (fr) * 1992-08-20 1994-02-23 Moeller GmbH Dispositif de commutation
EP0828277A2 (fr) * 1996-09-05 1998-03-11 Siemens Aktiengesellschaft Disjoncteur et interrupteur auxiliaire accouplé
EP0951043A1 (fr) * 1998-04-17 1999-10-20 Schneider Electric Industries SA Bloc auxiliaire de signalisation ou de déclenchement équipé de moyens de détrompage
EP1037243A2 (fr) * 1999-03-12 2000-09-20 ABBPATENT GmbH Interrupteur auxiliaire pour le montage dans un disjoncteur ou interrupteur de fuite à la terre ou leur combinaison
WO2008034397A1 (fr) * 2006-09-21 2008-03-27 Siemens Aktiengesellschaft Commutateur de protection à séparation de la charge et actionnement réglable par commutateur auxiliaire
EP2605264A1 (fr) * 2011-12-15 2013-06-19 Schneider Electric Industries SAS Dispositif d'actionnement des contacts auxiliaires dans un appareil de coupure électrique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19913816A1 (de) * 1999-03-26 2000-09-28 Abb Patent Gmbh Fehlerstromschutzschalter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4112270A (en) * 1977-09-02 1978-09-05 Rys Tadeusz J Means connecting circuit breaker and auxiliary feature modules
DE3119165A1 (de) * 1981-05-14 1982-12-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Selbstschalter als baueinheit aus einem leitungsschutzschalter sowie hilfs- und signalschaltern
EP0303965A2 (fr) * 1987-08-17 1989-02-22 Asea Brown Boveri Aktiengesellschaft Appareil de commutation électrique

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3256407A (en) * 1963-10-28 1966-06-14 Gen Electric Circuit breaker and accessory device combination
DE1286188B (de) * 1965-09-09 1969-01-02 Licentia Gmbh Installationsselbstschalter mit Hilfskontakt
US3530412A (en) * 1968-07-17 1970-09-22 Ite Imperial Corp Circuit breaker stack including auxiliary alarm switch
DE7426189U (de) * 1974-08-01 1974-11-07 Bbc Ag HilfGeschalter-Anbauteil für Leitungsschutzschalter
US4209760A (en) * 1978-05-25 1980-06-24 Gould Inc. Circuit breaker and accessory devices therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4112270A (en) * 1977-09-02 1978-09-05 Rys Tadeusz J Means connecting circuit breaker and auxiliary feature modules
DE3119165A1 (de) * 1981-05-14 1982-12-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Selbstschalter als baueinheit aus einem leitungsschutzschalter sowie hilfs- und signalschaltern
EP0303965A2 (fr) * 1987-08-17 1989-02-22 Asea Brown Boveri Aktiengesellschaft Appareil de commutation électrique

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0583762A1 (fr) * 1992-08-20 1994-02-23 Moeller GmbH Dispositif de commutation
EP0828277A2 (fr) * 1996-09-05 1998-03-11 Siemens Aktiengesellschaft Disjoncteur et interrupteur auxiliaire accouplé
EP0828277A3 (fr) * 1996-09-05 1999-03-31 Siemens Aktiengesellschaft Disjoncteur et interrupteur auxiliaire accouplé
EP0951043A1 (fr) * 1998-04-17 1999-10-20 Schneider Electric Industries SA Bloc auxiliaire de signalisation ou de déclenchement équipé de moyens de détrompage
FR2777693A1 (fr) * 1998-04-17 1999-10-22 Schneider Electric Ind Sa Bloc auxiliaire de signalisation ou de declenchement equipe de moyens de detrompage
EP1037243A2 (fr) * 1999-03-12 2000-09-20 ABBPATENT GmbH Interrupteur auxiliaire pour le montage dans un disjoncteur ou interrupteur de fuite à la terre ou leur combinaison
EP1037243A3 (fr) * 1999-03-12 2002-01-02 ABB PATENT GmbH Interrupteur auxiliaire pour le montage dans un disjoncteur ou interrupteur de fuite à la terre ou leur combinaison
WO2008034397A1 (fr) * 2006-09-21 2008-03-27 Siemens Aktiengesellschaft Commutateur de protection à séparation de la charge et actionnement réglable par commutateur auxiliaire
EP2605264A1 (fr) * 2011-12-15 2013-06-19 Schneider Electric Industries SAS Dispositif d'actionnement des contacts auxiliaires dans un appareil de coupure électrique
FR2984588A1 (fr) * 2011-12-15 2013-06-21 Schneider Electric Ind Sas Dispositif d'actionnement des contacts auxiliaires dans un appareil de coupure electrique

Also Published As

Publication number Publication date
EP0454018A3 (en) 1992-09-23
DE59104016D1 (de) 1995-02-09
EP0454018B1 (fr) 1994-12-28
DE4013272A1 (de) 1991-10-31

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