EP0454018A2 - Electrical switch gear - Google Patents

Electrical switch gear Download PDF

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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)
French (fr)
Other versions
EP0454018B1 (en
EP0454018A3 (en
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/en
Publication of EP0454018A3 publication Critical patent/EP0454018A3/en
Application granted granted Critical
Publication of EP0454018B1 publication Critical patent/EP0454018B1/en
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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  • Breakers (AREA)

Abstract

An electrical switching device for fitment to installation automatic switches, especially line protection circuit breakers or fault-current protection circuit breakers, having contact points for at least one potential-free switch terminal, which contact points are operated by an operating device and interact with coupling elements which pass through the flat side of the housing, which is of narrow construction, of the switching device and of an adjacent automatic switch and transmit the switch position of the automatic switch via the operating device to the respective switch terminal, the operating device being formed from a switch mechanism which is allocated in each case to one switch terminal and is independent of the others, a contact drum, which is connected in a rotationally fixed manner to the moving contact pieces of the automatic switch and supports them such that they can rotate, being connected in a positively locking manner to one of the coupling elements, so that the rotational movement of the contact drum, and hence the switch position of the automatic switch, is transmitted to the associated operating device. <IMAGE>

Description

Die Erfindung betrifft ein elektrisches Schaltgerät nach dem Oberbegriff des Anspruches 1.The invention relates to an electrical switching device according to the preamble of claim 1.

Ein derartiges elektrisches Schaltgerät, welches als Hilfsschalteranbauteil für Leitungsschutzschalter Verwendung finden kann, ist aus der DE-GM 74 26 189 bekannt geworden. Die beweglichen Kontaktstücke sind an Kontaktbrücken angeordnet, die in einem verschiebbaren Kontaktbrückenträger gelagert sind, der über ein kurbelähnliches Kupplungselement von einem Selbstschalter betätigt werden kann. Dieses Anbauteil enthält aber lediglich einen Hilfsschalter und keinen Signalschalter.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. However, this attachment only contains an auxiliary switch and no signal switch.

Ein Schaltgerät, welches zwei Schalterpole aufweist, die als Hilfsschalter und als Signalschalter dienen, ist aus der DE-PS 31 19 165 bekannt geworden. Bei dieser Anordnung nimmt der Schalterpol, der als Hilfsschalter dienen soll, immer die Stellung der Kontaktstellen des Leitungsschutzschalters ein, dem er zugeordnet ist, wogegen bei dem Schalterpol, der als Signalschalter wirken soll, lediglich dann ein Schaltvorgang erfolgt, wenn der Leitungsschutzschalter automatisch ausgelöst, d. h. automatisch aufgrund eines Kurzschlusses oder Überstromes geöffnet hat. Wenn der Leitungsschutzschalter manuell geschaltet wird, dann hat dies keinen Einfluß auf den Signalschalter. Die Ausgestaltung mit Kontaktwippen, entsprechenden Schaltelementen und Betätigungsgliedern ist relativ kompliziert.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. With this arrangement, 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.

Ein elektrisches Schaltgerät der eingangs genannten Art ist aus der EP-A 0 303 965 bekannt geworden. Dieses Schaltgerät ist an einen Leitungsschutzschalter angeschlossen und der Kontur des Leitungsschutzschalters angepaßt. Es besitzt zwei Schaltgriffe, die auf den Hilfsschalter-Schalterpol und den Signalschalter-Schalterpol jeweils getrennt einwirken. Diese Anordnung ist im wesentlichen bei Installationsschaltgeräten anzuwenden, nicht aber ohne weiteres bei Fehlerstromschutzschaltern.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.

Aufgabe der Erfindung ist es, ein elektrisches Schaltgerät der eingangs genannten Art so auszubilden, daß es insbesondere dann angewendet werden kann, wenn lediglich eine drehende Verbindung zur Betätigung des Hilfsschalters und/oder des Signalschalters gegeben ist.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.

Diese Aufgabe wird erfindungsgemäß gelöst durch die kennzeichnenden Merkmale des Anspruches 1.This object is achieved according to the invention by the characterizing features of claim 1.

Weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung sind den Unteransprüchen zu entnehmen.Further advantageous refinements and improvements of the invention can be found in the subclaims.

Erfindungsgemäß wird insbesondere der Hilfsschalter über ein Kupplungsglied betätigt, welches mit der Kontaktwalze des Installationsschaltgerätes in Verbindung steht. Die Kontaktwalze ist eine Drehachse, die mit dem beweglichen Kontakthebel gekuppelt ist und um die sich der Kontakthebel dreht. Zwecks einer optimalen und insbesondere toleranzfreien Verbindung zwischen dem Kupplungsglied und der Kontaktwalze sind die Kontaktwalze und das Kupplungsglied mit konisch ineinandergreifenden Ausnehmungen bzw. Vorsprüngen versehen, dergestalt, daß in einer Version die Kontaktwalze eine konisch sich zum Boden hin verjüngende Ausnehmung und das Kupplungsglied einen entsprechend sich verjüngenden Fortsatz oder die Kontaktwalze einen sich zum freien Ende hin verjüngenden Fortsatz und das Kupplungsglied eine entsprechend ausgestaltete und daran angepaßte Ausnehmung aufweist. Aufgrund der Feder, die an dem Gehäuse des Schaltgerätes angeformt ist, wird ein Ineinanderpressen des Fortsatzes in die Ausnehmung und damit eine spielfreie Verbindung zwischen Kontaktwalze und Kupplungsstück bewirkt.According to the invention, in particular 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. For the purpose of an optimal and, in particular, tolerance-free connection between the coupling member and the contact roller, 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.

Das zugehörige Kontaktelement wird in zwei Kontaktstellungen durch eine Federanordnung festgehalten, die auf diejenige Lasche drückt, an der das Kontaktelement befestigt ist und an der der Verbindungsbügel zwischen dem Kupplungsglied und der Lasche eingreift. Durch die Feder-Bügelanordung wird bei Verdrehen des Kupplungsgliedes in die entsprechende Richtung die Lasche und damit das Kontaktelemente in die eine stabile bzw. in die andere stabile Lage verdreht, in der das Kontaktelement jeweils mit einem Festkontakt zusammenwirkt. Mit dieser Ausgestaltung wird der Hilfsschalter betätigt, der mit dem Kontaktapparat des Installationsschaltgerätes, also des Leitungsschutzschalters oder des Fehlerstromschutzschalters gleichsinnig zusammenwirkt.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. When the coupling member is rotated in the corresponding direction, 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. With this configuration, 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.

Das Schaltgerät besitzt auch noch einen zweiten Schalterpol, mit dem die Schaltstellung signalisiert wird, insbesondere dann, wenn das Installations-Schaltgerät automatisch aufgrund eines Kurzschlußstromes, Überstromes oder Fehlerstromes ausgelöst und geöffnet hat.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.

Bei dieser Ausgestaltung ist ähnlich wie bei der eingangs erwähnten EP-A 0 303 965 ein Schieber vorgesehen, mit dem das entsprechend Anspruch 12 ausgebildete Kupplungselement zusammenwirkt. Dieser Schieber besitzt zur Aufnahme des entsprechenden Kurbelzapfens des Kupplungsgliedes eine Ausnehmung und demgemäß eine entsprechend ausgestaltete Form im Bereich dieser Ausnehmung, damit eine definierte Übertragungsfläche der Bewegung des Schiebers auf den Auslösehebel erzeugt wird.In this embodiment, similar to EP-A 0 303 965 mentioned at the outset, 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.

Wie eingangs erwähnt, ist der Schaltgriff in zwei Schaltgriffteile unterteilt, ähnlich wie bei dem Schaltgerät nach der EP-A 0 303 965. Der Schaltgriffteil, der zur Betätigung des Schalterpoles, der als Signalschalter dient, benutzt wird, besitzt gemäß kennzeichnenden Merkmalen des Anspruches 14 einen Haken, der mit einem Ende eines Übertragungsbügels zusammenwirkt und zwar dergestalt, daß der Übertragungsbügel von dem Haken lediglich in Schließstellung mitgenommen wird. Dadurch wird der als Signalschalter dienende Schalterpol manuell einschaltbar, nicht aber manuell ausschaltbar, weil eine entsprechende Ausgestaltung des Schaltgriffteiles gegeben ist; in der einen Richtung wirkt der Haken und in der anderen Richtung ist ein dem Haken entsprechendes Teil nicht vorgesehen, so daß im eingeschalteten Zustand der Schaltgriffteil ohne Einwirkung auf den Schalterpol hin- und herschwenkbar ist.As mentioned at the beginning, the 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. As a result, 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.

Anhand der Zeichnung, in der ein Ausführungsbeispiel der Erfindung dargestellt ist, sollen die Erfindung sowie weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung näher erläutert und beschrieben werden.Based on the drawing, in which an embodiment of the invention is shown, the invention and further advantageous refinements and improvements of the invention are to be explained and described in more detail.

Es zeigen:

Figur 1
eine schematische Teilschnittansicht im Bereich eines Kupplungsgliedes eines elektrischen Schaltgerätes in einer ersten Stellung,
Figur 2
ein um ein ebenfalls nur schematisch und teilweise dargestellten Fehlerstromschutzschalter ergänztes Schaltgerät ähnlich dem der Figur 1, bei dem allerdings für die Funktionsweise unwesentliche Teile weggelassen sind,
Figuren 3 bis 6
unterschiedliche Schaltstellungen für den als Hilfsschalter wirkenden Schalterpol,
Figur 7
eine Schnittansicht ähnlich der der Figur 2 mit einem Kupplungsglied für den Schalterpol, der als Signalschalter wirkt,
Figur 8
eine Einsicht in ein erfindungsgemäßes Schaltgerät und
Figur 9
ein Zwischenstück, welches mit dem Schaltgerät nach Figur 8 verbindbar ist.
Show it:
Figure 1
2 shows a schematic partial sectional view in the area of a coupling member of an electrical switching device in a first position,
Figure 2
A switching device similar to that of FIG. 1, supplemented by a residual current circuit breaker which is also only shown schematically and partially, but in which parts which are insignificant for the mode of operation are omitted.
Figures 3 to 6
different switching positions for the switch pole acting as an auxiliary switch,
Figure 7
3 shows a sectional view similar to that of FIG. 2 with a coupling member for the switch pole, which acts as a signal switch,
Figure 8
an insight into a switching device according to the invention and
Figure 9
an intermediate piece which can be connected to the switching device according to Figure 8.

Es sei Bezug genommen auf die Figuren 8 und 9.Reference is made to FIGS. 8 and 9.

Aus der EP-A 0 303 965, insbesondere Figur 1 und 2 ist eine Zuordnung eines Schaltgerätes ähnlich dem der vorliegenden Erfindung zu Leitungsschutzschaltern gezeigt, wobei die Figur 2 das Schaltgerät in perspektivischer Darstellung einzeln zeigt. Die Figur 3 der EP-A 0 303 965 zeigt eine Einsicht in das Schaltgerät gemäß der Figur 2 der EP-A 0 303 965, und die Figur 8 zeigt jenes bekannte Schaltgerät in modifizierter Form und quasi von der Rückseite her. Die folgende Beschreibung nimmt auf den Inhalt der EP-A 0 303 965 insoweit Bezug, als die in Klammern beigesetzten Bezugsziffern den Bezugsziffern der Ausführung nach der EP-A 0 303 965 entsprechen.From EP-A 0 303 965, in particular 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, and 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.

Das Schaltgerät gemäß Figur 8 besitzt ein Gehäuse 10 (40) mit Anschlußklemmen 11 (25) und Anschlußklemmen 12 (25). An der in der Zeichnung links oben dargestellten Klemme ist eine Anschlußfahne 13 (60) angeformt, an deren freiem, im Inneren des Gehäuses 12 befindlichen Ende ein festes Kontaktstück 14 angebracht ist. An der mittleren Klemme 11 ist eine weitere Anschlußfahne 15 (62) vorgesehen, an der ein weiteres festes Kontaktstück 16 angebracht ist, welches in Abstand zu dem festen Kontaktstück 14 angeordnet ist. An der im Bodenbereich befindlichen Klemme der Anschlußklemme 11 ist eine dritte Anschlußfahne 17 angeformt, an der ein Litzenleiter 18 (50) angebracht ist, dessen anderes Ende an einem Lagerteil 19 (54) für eine Kontaktfeder 20 (56) mit einem beweglichen Kontaktstück 21 (ohne Bezugsziffer) angelenkt ist. Das bewegliche Kontaktstück 21 schwingt zwischen den beiden Festkontaktstücken 14 und 16 je nach Antriebsrichtung hin und her.The switching device according to Figure 8 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. On the middle clamp 11 there is a further connecting lug 15 (62) on which a further fixed contact piece 16 is attached, which is arranged at a distance from the fixed contact piece 14. 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.

An dem Lagerstück 19 ist ein Übertragungsbügel 22 (58) angelenkt, dessen anderes Ende an einem Auslösehebel 23 (76) angelenkt ist. Dieser Auslösehebel wirkt mit einem Klinkenhebel 24 (78) unter Bildung einer Verklinkungsstelle 25 (77) zusammen.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).

In der Zeichnung Figur 8 vor dem Auslösehebel 23 gezeichnet ist ein Schieber 26, der bis auf gewisse Modifizierungen dem Schieber 80 der EP-A 0 303 965 entspricht. Der Schieber 26 weist eine L-förmige Ausgestaltung auf, wobei der eine Schenkel 27 eine langlochartige Ausnehmung 28 besitzt, die im Bereich der Außenseite des Schenkels 27 von einem Vorsprung 29 begrenzt wird, der gegen den Klinkenhebel 24 drückt, um die Verklinkungsstelle 25 zu entklinken. Damit dies optimal funktioniert, ist der Klinkenhebel 24 mittels einer Feder 30 beaufschlagt. Der Klinkenhebel 24 ist in gleicher Weise wie der Klinkenhebel 78 in einer Drehachse 31 gelagert, die eine bananenartige Ausnehmung 32 (82) durchgreift. An dem Auslösehebel 23 schließt ein Ende eines Übertragungsbügels 33 (75) an, dessen anderes Ende mit einem Haken 34 an dem Schaltgriff 35 derart zusammenwirkt, daß beim Einschalten, also bei Bewegung des Schaltgriffes in Pfeilrichtung E, der Haken den Übertragungsbügel 33 nach unten drückt, damit das Element 19 verdreht wird, so daß das bewegliche Kontaktstück 21 aus der in Figur 8 gezeigten Stellung in die Stellung verdreht werden kann, in der das bewegliche Kontaktstück mit dem festen Kontaktstück 16 zusammenwirkt.In the drawing in FIG. 8, 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 . In order for this to work optimally, 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). At the trigger lever 23 connects one end of 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.

Man erkennt aus der Figur 8, daß eine große Ähnlichkeit mit der Ausführung nach der EP-A 0 303 965 gegeben ist.It can be seen from FIG. 8 that there is a great similarity to the design according to EP-A 0 303 965.

Zur Ergänzung der obigen Ausführungen sei jetzt Bezug genommen auf die Figur 7.To supplement the above statements, reference is now made to FIG. 7.

Man erkennt in der Figur 7 rein schematisch einen Fehlerstromschutzschalter 40, der einen etwa senkrecht zur Zeichenebene schwingenden Zapfen 41 aufweist, der mit dem nicht näher dargestellten Schaltschloß des Fehlerstromschutzschalters in Verbindung steht.In FIG. 7, 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 die Breitseite 43 des Fehlerstromschutzschalters 40 angeschlossen ist ein im Querschnitt etwa T-förmiges Zwischenstück 44, welches eine Außenwandung 45 aufweist, die der Außenkontur des erfindungsgemäßen Schaltgerätes entspricht. Im Inneren der Gehäusewandung 45 ist eine Zwischenwand 46 vorgesehen, die in einem Abstand zu den jeweiligen Enden der Gehäusewandung annähernd in der Mitte angeformt ist und die ein etwa wieder annähernd senkrecht zu der Zeichenebene verlaufendes Langloch 47 aufweist. An der fehlerstromschutzschalterseitigen Fläche der Zwischenwand 46 sind zwei Rastzapfen 48 und 49 mit an deren Enden angeformten Rastnasen 50 und 51 angeformt, die durch eine Öffnung 52 eines Kupplungsgliedes 53 hindurchgreifen, hinter Rücksprüngen 54 verrastet sind und eine drehbare Lagerung des Kupplungsgliedes 53 gestatten.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. In the interior of the housing wall 45, 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. On the residual current circuit breaker-side surface of the intermediate wall 46, 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.

Das Kupplungsglied 53 besitzt eine etwa zylindrische Form und dabei sind an entgegengesetzt liegenden stirnseitigen diametral gegenüberliegend je ein Kurbelzapfen 55 und 56 angeformt, wobei der Kurbelzapfen 55 durch ein annähernd senkrecht zur Zeichenebene verlaufendes Langloch 57 in der Breitseitenwand 43 hindurchgreift. Der Kurbelzapfen 55 besitzt eine Sacklochvertiefung 58, in die der Zapfen 41 eingreift.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.

Auf dem entgegengesetzten Ende des Kupplungsgliedes 53 sitzt der Kurbelzapfen 56, der durch das Langloch 47 hindurchgreift und auf der anderen Seite der Zwischenwand 46, in der sich diejenigen Teile befinden, die in der Figur 8 sichtbar sind, in die Langlochausnehmung 28 des Schenkels 29 des Schiebers 26 eingreift. Die in Figur 8 hinter dem Schieber 26 befindlichen Auslösehebel 23 bzw. Klinkenhebel 24 und dgl. würden in der Ausführungsform nach Figur 7 und in der Darstellung rechts neben dem Schieber 26 angeordnet liegen. Die Langlöcher 57 und 47 sind demgemäß als Kreisbogen ausgebildet, deren Kreisradius den Drehradien der Kurbelzapfen 55 und 56 bezogen auf die Drehachse des Kupplungsgliedes 53 entspricht; diese Drehachse ist die mit M-M bezeichnete, strichpunktiert dargestellte Symmetrielinie der beiden Arme 48 und 49.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.

Das freie Ende der Gehäusewandung 45 ist mittels eines Deckels 60 abgedeckt. Der Fehlerstromschutzschalter 40 ist mit dem in der Gesamtheit mit 61 bezeichneten Schaltgerät über Schnapp-Haltebügel 62 und 63 verbunden. Es können selbstverständlich auch alle anderen Arten von Verbindungsgliedern vorgesehen werden.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. Of course, all other types of connecting links can also be provided.

Die Figur 9 zeigt das Schaltgerät 61 bei abgenommenen Fehlerstromschutzschalter 40 gemäß Aufsicht Pfeilrichtung P. Man erkennt dabei den Kurbelzapfen 55 sowie die beiden Nasen 50 und 51 des Kupplungsgliedes 53. Durch eine Ausnehmung 64 in der Zwischenwand 46 erkennt man auch den Übertragungsbügel 33 sowie den Schieber 26.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.

Es sei nun Bezug genommen auf die Figuren 1 bis 6. Man erkennt dort den Fehlerstromschutzschalter, die Zwischenwandung 46, die Gehäusewandung 45 und den Deckel 60. Der Fehlerstromschutzschalter, der ebenso nur zum Teil dargestellt ist wie in Figur 7 schon angedeutet, besitzt eine mit einem nicht dargestellten bewegbaren Kontakthebel verbundene und dessen Drehachse bildende Kontaktwalze 70, die mit einem Zapfen 71 in einem Loch 72 in der Seitenwandung des Fehlerstromschutzschalters gelagert ist. Die Kontaktwalze 70, genauer der Zapfen 71, weist an ihrem bzw. seinem freien Ende eine Ausnehmung oder Vertiefung 73 auf, die sich vom freien Ende bis zum Boden hin konisch verjüngt und eine Profilform hat.Reference is now made to FIGS. 1 to 6. 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.

In diese Vertiefung 73 greift ein konisch ausgebildeter, daran angepaßter Zapfen 74 eines Kupplungsgliedes 75 ein, welches Kupplungsglied eine zentrale Vertiefung 76 aufweist, die über eine seitliche Aussparung 78 nach außen hin offen ist, so daß ein Rücksprung 77 gebildet ist, hinter den eine Nase 79 an einem Arm 80 greift. Dem Rastarm 80 ist ein weiterer Rastarm 81 zugeordnet, der allerdings keine Nase aufweist, sondern lediglich Führungsaufgaben übernimmt. In der in Figur 2 dargestellten Stellung ist die Rastnase 79 von dem Rücksprung 77 um das Maß A entfernt. An der Zwischenwandung 46 ist eine Feder 81 angeformt, die mit einem Vorsprung 82 gegen das Kupplungsglied 75 drückt und das Kupplungsglied mit dem Zapfen 74 in die Ausnehmung 73 hineindrückt. Man erkennt die Stellung der Feder 81 in der Figur 1, in der der Abstand zwischen der Rastnase 79 und dem Rücksprung 77 Null ist.In this recess 73 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. In the position shown in Figure 2, 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.

Das Kupplungsglied 75 besitzt eine exzentrische, in axialer Richtung des Kupplungsgliedes 75 verlaufende Durchgangsbohrung 83, in die das abgewinkelte Ende 84 eines Übertragungsbügels 85 eingreift; mittels einer an der Zwischenwand 46 angeformten L-förmigen Lasche 86 ist der Bügel 85 geführt, so daß er sich etwa in seiner Längsrichtung verschieben kann.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.

Die Figur 3 zeigt das Kupplungsglied 75 in Aufsicht gemäß Pfeilrichtung P. Man erkennt den Zapfen 74, das Loch 83 sowie einen Querschnitt durch das Ende 84 und den Bügel 85. Das Loch 83 ist als Langloch ausgebildet, das eine kreisbogenförmige Gestalt aufweist, dessen Mittellinie 87 seinen Mittelpunkt im Drehpunkt des Kupplungsgliedes 75 hat.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.

Das andere Ende des Bügels 85 ist an einer Lasche 90 angelenkt, die um eine ortsfeste Achse 91 verdrehbar ist und an der eine Kontaktfeder 92 mit einem beweglichen Kontakt 93 angebracht ist. Die Drehachse 91 der Lasche 90, der Anlenkpunkt des Bügels 85 an der Lasche und die Kontaktfeder 92 liegen auf einer Linie 94. Man erkennt, daß auf die Lasche 90 eine Druckfeder 95 drückt, wobei die Kraftlinie 96 bzw. Kraftrichtung 96 in der in Figur 3 gezeigten Stellung, die eine Totpunktlage darstellt, durch die Drehachse 91 der Lasche 90 und durch die Verbindungslinie zwischen der Drehachse 91 und dem Anlenkpunkt 97 des Bügels 85 an der Lasche 90 verläuft.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. It can be seen that 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.

Die Figur 5 zeigt die Anordnung gemäß Figur 3 in einer ersten stabilen Lage, in der das bewegliche Kontaktstück 93 mit einem ersten Festkontaktstück 98 zusammenwirkt. Die Kraftlinie 96 der Feder 95 verläuft nun nicht mehr durch den Mittelpunkt der Drehachse 91, sondern unter einem Winkel verschoben, der von der Totpunktlage (siehe Figur 3) hin zum Anlenkpunkt 97 verschwenkt ist. Dadurch wirkt auf die Lasche 90 ein Drehmoment DM, welches das bewegliche Kontaktstück 93 gegen das Festkontaktstück 98 drückt. Da das Kupplungsglied 75 in der Ausführung nach Figur 3 seine Endstellung erreicht hat, verschiebt sich das Ende 84 um einen Winkel von dem Ende 99 des Langloches 83, und es verbleibt zwischen diesem Ende 99 und dem entgegengesetzt liegenden Ende 100 des Langloches noch eine Strecke a.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. As a result, a torque D M acts on the tab 90, which presses the movable contact piece 93 against the fixed contact piece 98. Since 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 .

Wenn sich nun das Kupplungsglied 75 aus der in der Figur 5 gezeigten Stellung in Pfelrichtung P₁ aufgrund der Drehung der Kontaktwalze 70 verdreht, dann muß sich das Kupplungsglied 75 solange drehen, bis das Ende 84 an das Ende 100 des Langloches 83 zum Anliegen kommt. Dadurch wird über das Übertragungsglied 85 eine Kraft in Pfeilrichtung P₂ auf die Lasche 90 ausgeübt, so daß sich die Lasche in Uhrzeigersinn, also in Pfeilrichtung P₃ verschwenkt, wodurch die Feder 95 die in Figur 3 gezeigte Totpunktlage erreicht und bei weiterer Verdrehung des Kupplungsgliedes 75 auch überschreitet, so daß die in Figur 6 gezeigte Endlage erreicht ist, in der die Kraftlinie 96 der Druckfeder 95 um einen Winkel verdreht ist, wobei der Winkel von der Totpunktlage aus in die Richtung gemessen ist, die außerhalb des Verbindungsbereiches zwischen der Drehachse 91 und dem Anlenkpunkt 97 des Übertragungsbügels 85 liegt. In diesem Falle legt sich das bewegliche Kontaktstück 93 an ein weiteres festes Kontaktstück 101 an. Das Ende 84 befindet sich in einem Winkel von dem Ende 100 und ist von dem anderem Ende 99 um dem Wert a entfernt.If the coupling member 75 now rotates from the position shown in FIG. 5 in the direction of the arrow P 1 due to the rotation of the contact roller 70, then the coupling member 75 must rotate until the end 84 comes to rest against the end 100 of the elongated hole 83. Characterized a force in the direction of arrow P₂ is exerted on the tab 90 via the transmission member 85, so that the tab is pivoted clockwise, that is in the direction of the arrow P₃, whereby the spring 95 reaches the dead center position shown in Figure 3 and with further rotation of the coupling member 75 also 6, so that the end position shown in FIG. 6 is reached, in which the force line 96 of the compression spring 95 is rotated by an angle, the angle being measured from the dead center position in the direction outside the connection area between the axis of rotation 91 and the Articulation point 97 of the transmission bracket 85 lies. In this case, the movable contact piece 93 bears against another fixed contact piece 101. The end 84 is at an angle from the end 100 and is distant from the other end 99 by the value a.

Wie aus der Zeichnung ersichtlich, schwenkt das Kupplungsglied 75 um eine mittlere Linie M₁, jeweils soweit, daß in der einen stabilen Stellung, Figur 3, das eine Ende 99 des Langloches 83 gerade diese Linie M₁ anschneidet, wogegen in der anderen stabilen Stellung, Figur 6, das andere Ende 100 des Langloches 83 die Linie M₁ tangiert Der Abstand a des Endes 84 vom Ende 99 des Langloches 83 in der einen stabilen Stellung gleicht dem Abstand a des Endes 84 vom anderen Ende 100 des Langloches 83.As can be seen from the drawing, 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.

Man erkennt in der Figur 9 den Übertragungsbügel 85, das Kupplungsglied 75 sowie das Langloch 83.The transmission bracket 85, the coupling member 75 and the elongated hole 83 can be seen in FIG. 9.

Die Ausführungen nach den Figuren 1 bis 6 sind schematisch und in der tatsächlich realisierten Ausführung erkennt man die Lasche 90, die Druckfeder 95 mit der an der Lasche 90 angeformten Kontaktfeder 92, an deren Ende das bewegliche Kontaktstück 93 sitzt.The embodiments according to 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.

Die Drechachse 91 der Lasche 90 ist ebenso eingezeichnet wie der Anlenkpunkt 97 des in der Figur 8 nicht sichtbaren Übertragungsbügels; unterschiedlich zu der Ausführung nach den Figuren 3 bis 6 ist die Zuordnung des beweglichen Kontaktstückes 93 bzw. der Kontaktfeder 92 zu der Verbindungslinie zwischen der Drehachse 91 und dem Anlenkpunkt 97. Die Kontaktfeder 92 verläuft dazu parallel; es kommt auch nicht darauf an, daß die Kontaktfeder 92 mit der Verbindungslinie fluchtet. Die übrigen Verhältnisse, insbesondere die Kraftwirkung der Druckfeder 95 sind den in der Figur 3 bis 6 dargestellten Verhältnissen identisch.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.

Das bewegliche Kontaktstück 93 (bezogen auf Figur 3 der EP-A 0 303 965 die Kontaktfeder 57) wirkt mit dem beweglichen Kontaktstück 93 mit zwei Anschlußfahnen 102 (63) und 103 (61) zusammen, die jeweils an den entsprechenden Anschlußklemmen 12 (25) angeschlossen sind. An der Lasche 91 (53) mit der Drehachse 91 (41) schließt eine Litze 104 (51) an, die an einer Anschlußfahne 105 angebracht ist.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. On the tab 91 (53) with the axis of rotation 91 (41) connects a strand 104 (51) which is attached to a terminal lug 105.

Im montierten Zustand muß man sich vorstellen, daß die Innenteile der Figur 8 durch die Zwischenwandung 46 abgedeckt sind, so daß die Darstellung gemäß Figur 9 den montierten Zustand zeigen, wogegen die Darstellung gemäß Figur 8 praktisch eine Schnittansicht gemäß Schnittlinie VIII-VIII der Figur 7 ist.In the assembled state, one has to imagine that the inner parts of FIG. 8 are covered by the intermediate wall 46, so that the representation according to FIG. 9 shows the assembled state, whereas the representation according to FIG. 8 practically shows a sectional view along section line VIII-VIII of FIG. 7 is.

Claims (14)

Elektrisches Schaltgerät (10) zum Anbau an Installations-Selbstschalter (40), insbesondere Leitungsschutzschalter oder Fehlerstromschutzschalter, mit Kontaktstellen (15, 16, 21; 93, 102, 103) für wenigstens einen potentialfreien Schalterpol, welche von einer Betätigungseinrichtung betätigt werden, die mit die Flachseite des in Schmalbauweise ausgebildeten Gehäuse (45, 46, 60) des Schaltgerätes (10) und eines angrenzenden Selbstschalters durchgreifenden und die Schaltstellung des Selbstschalters (40) über die Betätigungseinrichtung auf den jeweiligen Schalterpol übertragenden Kupplungsgliedern (41, 53) zusammenarbeiten, wobei die Betätigungseinrichtung aus einem jeweils einem Schalterpol zugeordneten, gegenüber den anderen unabhängigen Schaltwerk gebildet ist, dadurch gekennzeichnet, daß eine mit den beweglichen Kontaktstücken des Selbstschalters drehfest verbundene und diese drehbar lagernde Kontaktwalze (70) mit einem der Kupplungsglieder (75) formschlüssig in Verbindung steht, so daß die Drehbewegung der Kontaktwalze (70) und damit die Schaltstellung des Selbstschalters (40) auf die zugehörige Betätigungseinrichtung übertragen wird.Electrical switching device (10) for mounting on installation self-switches (40), in particular miniature circuit breakers or residual current circuit breakers, with contact points (15, 16, 21; 93, 102, 103) for at least one potential-free switch pole, which are actuated by an actuating device which the flat side of the narrowly constructed housing (45, 46, 60) of the switching device (10) and an adjacent self-switch reaching through and the switching position of the self-switch (40) via the actuating device to the respective switch pole-transmitting coupling members (41, 53) work together, the Actuating device is formed from a respective switch pole assigned to the other independent switching mechanism, characterized in that a contact roller (70) which is non-rotatably connected to the movable contact pieces of the circuit breaker and rotatably supports them with one of the coupling members (75) in a form-fitting manner g stands, so that the rotary movement of the contact roller (70) and thus the switching position of the automatic switch (40) is transmitted to the associated actuating device. Elektrisches Schaltgerät nach Anspruch 1, dadurch gekennzeichnet, daß die Kontaktwalze (70) eine profilierte Ausnehmung (73) aufweist, in die das entsprechend ausgebildete und daran angepaßte Ende des Kupplungsgliedes (75) eingreift.Electrical switching device according to claim 1, characterized in that the contact roller (70) has a profiled recess (73) into which the appropriately designed and adapted end of the coupling member (75) engages. Schaltgerät nach Anspruch 1, dadurch gekennzeichnet, daß an der Kontaktwalze (70) ein mit einem Profil versehener Fortsatz angeformt ist, der in eine daran angepaßte Ausnehmung am Kupplungsglied (75) eingreift.Switching device according to Claim 1, characterized in that an extension provided with a profile is formed on the contact roller (70) and engages in a recess on the coupling member (75) which is adapted to it. Schaltgerät nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Ausnehmung (72) an der Kontaktwalze (70) oder der Fortsatz und das daran angepaßte Ende des Kupplungsgliedes konisch ausgebildet sind.Switching device according to claim 2 or 3, characterized in that the recess (72) on the contact roller (70) or the extension and the end of the coupling member which is adapted thereto are conical. Schaltgerät nach Anspruch 4, dadurch gekennzeichnet, daß das Kupplungsglied (75) mittels einer Feder (81a) an die Kontaktwalze (70) angedrückt ist, so daß der konische Sitz zwischen Kontaktwalze (70) und Kupplungsglied (75) gewährleistet ist.Switching device according to Claim 4, characterized in that the coupling member (75) is pressed against the contact roller (70) by means of a spring (81a), so that the conical fit between the contact roller (70) and the coupling member (75) is ensured. Schaltgerät nach Anspruch 5, dadurch gekennzeichnet, daß die Feder (81a) als am Gehäuse (45) des Schaltgerätes angeformter Federarm ausgebildet ist.Switching device according to claim 5, characterized in that the spring (81a) is designed as a spring arm molded onto the housing (45) of the switching device. Selbstschalter nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß die Betätigungseinrichtung einen langgestreckten Bügel (85) aufweist, dessen eines Ende exzentrisch am zugehörigen Kupplungsglied (75) und dessen anderes Ende mit dem beweglichen Kontaktelement (93) des zugehörigen, einen Hilfskontakt bildenden Schalterpols (erster Schalterpol) verbunden ist.Automatic switch according to one of the preceding claims, characterized in that the actuating device has an elongated bracket (85), one end of which is eccentric on the associated coupling member (75) and the other end of which is connected to the movable contact element (93) of the associated switch pole (auxiliary contact) first switch pole) is connected. Schaltgerät nach Anspruch 7, dadurch gekennzeichnet, daß das bewegliche Kontaktelement (93) des ersten Schalterpols an einer Lasche (90) befestigt ist, an der das andere Ende des Bügels (85) angelenkt ist, und daß die Drehachse (91) der Lasche (90), der Anlenkpunkt und ggf. auch das erste bewegliche Kontaktelement (93) auf einer Verbindungslinie liegen.Switching device according to claim 7, characterized in that the movable contact element (93) of the first switch pole is fastened to a tab (90) to which the other end of the bracket (85) is articulated, and in that the axis of rotation (91) of the tab ( 90), the articulation point and possibly also the first movable contact element (93) lie on a connecting line. Selbstschalter nach Anspruch 8, dadurch gekennzeichnet, daß der Anlenkpunkt (97) des Bügels (85) zwischen der Drehachse der Lasche (91) und dem ersten beweglichen Kontaktelement (93) liegt.Automatic switch according to Claim 8, characterized in that the articulation point (97) of the bracket (85) lies between the axis of rotation of the bracket (91) and the first movable contact element (93). Selbstschalter nach Anspruch 9, dadurch gekennzeichnet, daß an der Lasche (91) auf der dem Bügel (85) abgewandten Seite der Lasche die Kraft einer Feder (95) angreift, deren Richtung quer zur Verbindungslinie von Drehachse (91) der Lasche (90) und Anlenkpunkt (97) des Bügels und quer zu der Drehachse verläuft, wobei die Lasche (91) mit der Feder (95) und dem Bügel (85) aus einer ersten stabilen Lage über eine Totpunktlage in eine zweite stabile Lage bringbar ist, und daß die Kraftrichtung der Feder (95) in der Totpunktlage senkrecht zur Drehachse der Lasche (91) und durch diese hindurch verläuft, wobei in jeder stabilen Lage das Kontaktelement (93) mit jeweils einem Festkontakt (98, 101) in Berührung steht.Automatic switch according to Claim 9, characterized in that the force of a spring (95) acts on the tab (91) on the side of the tab facing away from the bracket (85), the direction of said spring (95) transverse to the connecting line of the axis of rotation (91) of the tab (90) and articulation point (97) of the bracket and extends transversely to the axis of rotation, the tab (91) with the spring (95) and the bracket (85) being able to be brought from a first stable position to a second stable position via a dead center position, and that the direction of force of the spring (95) in the dead center position runs perpendicularly to and through the axis of rotation of the tab (91), the contact element (93) being in contact with a fixed contact (98, 101) in each stable position. Selbstschalter nach Anspruch 10, dadurch gekennzeichnet, daß das Kupplungsglied (75) ein Langloch (87) aufweist, in das das andere Ende des Bügels (85) eingehängt und in welchem es geführt ist, und das das andere Ende entsprechend der Verdrehung der Lasche (91) aus einer stabilen Lage in die andere in dem Langloch (87) frei beweglich ist, wobei das Langloch (87) so bemessen ist, daß das Kupplungsglied (75) bei Verdrehung den Bügel (85) über die Enden des Langloches (87) in die beiden stabilen Lagen mitnimmt.Automatic switch according to Claim 10, characterized in that the coupling member (75) has an elongated hole (87) into which the other end of the bracket (85) is suspended and in which it is guided, and the other end corresponding to the rotation of the tab ( 91) is freely movable from one stable position into the other in the elongated hole (87), the elongated hole (87) being dimensioned such that the coupling member (75) rotates the bracket (85) over the ends of the elongated hole (87) in the two stable positions. Selbstschalter, insbesondere nach einem oder mehreren der vorherigen Ansprüche, bei dem die Betätigungseinrichtung für den anderen Schalterpol (zweiten Schalterpol) eine Verklinkungsstelle (25) aufweist, die mittels eines durch das andere Kupplungsglied (53) verschiebbaren Schiebers (27) geöffnet wird, dadurch gekennzeichnet, daß im Schaltgerät ein mit zwei in entgegengesetzten Richtungen und in Abstand zueinander verlaufenden Kurbelzapfen (55, 56) versehenes Drehelement (53) drehbar gelagert ist, dessen einer Kurbelzapfen (55) mit einem im Selbstschalter befindlichen Antriebsteil (41) und dessen anderer Kurbelzapfen mit dem Schieber (26) zur Öffnung der Verklinkungsstelle (25) zusammenwirkt.Automatic switch, in particular according to one or more of the preceding claims, in which the actuating device for the other switch pole (second switch pole) has a latching point (25) which is opened by means of a slide (27) which can be displaced by the other coupling member (53), characterized in that a rotary element (53) provided with two crank pins (55, 56) running in opposite directions and at a distance from one another is rotatably mounted in the switching device a crank pin (55) with a drive part (41) located in the automatic switch and the other crank pin cooperating with the slide (26) for opening the latching point (25). Selbstschalter nach Anspruch 12, dadurch gekennzeichnet, daß der Schieber (26) eine Ausnehmung (28) aufweist, die in dem Bereich liegt, der auf den Auslösehebel der Verklinkungsstelle zu deren Öffnung einwirkt und in den der eine Kurbelzapfen (56) eingreift.Automatic switch according to Claim 12, characterized in that the slide (26) has a recess (28) which lies in the region which acts on the release lever of the latching point for opening it and into which the one crank pin (56) engages. Selbstschalter nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß am Schaltgriff (35) für den als Signalschalter dienenden zweiten Schalterpol ein Haken (34) angeformt ist, der mit einem Ende eines Übertragungsbügels (33) lediglich in einer Richtung, nämlich in der Schließrichtung zusammenwirkt, so daß der zweite Schalterpol manuell schließbar, manuell aber nicht öffenbar ist.Automatic switch according to one of the preceding claims, characterized in that a hook (34) is formed on the control handle (35) for the second switch pole serving as a signal switch and which cooperates with one end of a transmission bracket (33) only in one direction, namely in the closing direction , so that the second switch pole can be closed manually, but cannot be opened manually.
EP91106418A 1990-04-26 1991-04-22 Electrical switch gear Expired - Lifetime EP0454018B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4013272A DE4013272A1 (en) 1990-04-26 1990-04-26 ELECTRICAL SWITCHGEAR
DE4013272 1990-04-26

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

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DE (2) DE4013272A1 (en)

Cited By (6)

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Publication number Priority date Publication date Assignee Title
EP0583762A1 (en) * 1992-08-20 1994-02-23 Moeller GmbH Switching device
EP0828277A2 (en) * 1996-09-05 1998-03-11 Siemens Aktiengesellschaft Circuit breaker and linked auxiliary switch
EP0951043A1 (en) * 1998-04-17 1999-10-20 Schneider Electric Industries SA Auxiliary block for indicating the tripping equiped with such keying devices
EP1037243A2 (en) * 1999-03-12 2000-09-20 ABBPATENT GmbH Auxiliary switch for mounting in a circuit breaker or ground fault interruptor or their combination
WO2008034397A1 (en) * 2006-09-21 2008-03-27 Siemens Aktiengesellschaft Fuse switch disconnector with adjustable auxiliary switch actuation
EP2605264A1 (en) * 2011-12-15 2013-06-19 Schneider Electric Industries SAS Auxiliary contact actuating device in an electric switchgear apparatus

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DE19913816A1 (en) * 1999-03-26 2000-09-28 Abb Patent Gmbh Residual current circuit breaker

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US4112270A (en) * 1977-09-02 1978-09-05 Rys Tadeusz J Means connecting circuit breaker and auxiliary feature modules
DE3119165A1 (en) * 1981-05-14 1982-12-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Automatic circuit breaker as a structural unit consisting of a line protection circuit breaker as well as auxiliary and signal switches
EP0303965A2 (en) * 1987-08-17 1989-02-22 Asea Brown Boveri Aktiengesellschaft Electric switchgear

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0583762A1 (en) * 1992-08-20 1994-02-23 Moeller GmbH Switching device
EP0828277A2 (en) * 1996-09-05 1998-03-11 Siemens Aktiengesellschaft Circuit breaker and linked auxiliary switch
EP0828277A3 (en) * 1996-09-05 1999-03-31 Siemens Aktiengesellschaft Circuit breaker and linked auxiliary switch
EP0951043A1 (en) * 1998-04-17 1999-10-20 Schneider Electric Industries SA Auxiliary block for indicating the tripping equiped with such keying devices
FR2777693A1 (en) * 1998-04-17 1999-10-22 Schneider Electric Ind Sa AUXILIARY SIGNALING OR TRIGGERING UNIT PROVIDED WITH DECORING MEANS
EP1037243A2 (en) * 1999-03-12 2000-09-20 ABBPATENT GmbH Auxiliary switch for mounting in a circuit breaker or ground fault interruptor or their combination
EP1037243A3 (en) * 1999-03-12 2002-01-02 ABB PATENT GmbH Auxiliary switch for mounting in a circuit breaker or ground fault interruptor or their combination
WO2008034397A1 (en) * 2006-09-21 2008-03-27 Siemens Aktiengesellschaft Fuse switch disconnector with adjustable auxiliary switch actuation
EP2605264A1 (en) * 2011-12-15 2013-06-19 Schneider Electric Industries SAS Auxiliary contact actuating device in an electric switchgear apparatus
FR2984588A1 (en) * 2011-12-15 2013-06-21 Schneider Electric Ind Sas DEVICE FOR ACTUATING AUXILIARY CONTACTS IN AN ELECTRICAL CUTTING APPARATUS

Also Published As

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

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