EP0007551B1 - Contact bridge assembly - Google Patents

Contact bridge assembly Download PDF

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Publication number
EP0007551B1
EP0007551B1 EP79102477A EP79102477A EP0007551B1 EP 0007551 B1 EP0007551 B1 EP 0007551B1 EP 79102477 A EP79102477 A EP 79102477A EP 79102477 A EP79102477 A EP 79102477A EP 0007551 B1 EP0007551 B1 EP 0007551B1
Authority
EP
European Patent Office
Prior art keywords
contact bridge
slide
housing
spring
fixed
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.)
Expired
Application number
EP79102477A
Other languages
German (de)
French (fr)
Other versions
EP0007551A1 (en
Inventor
Johann Bauer
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.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT79102477T priority Critical patent/ATE528T1/en
Publication of EP0007551A1 publication Critical patent/EP0007551A1/en
Application granted granted Critical
Publication of EP0007551B1 publication Critical patent/EP0007551B1/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2008—Facilitate mounting or replacing contact bridge and pressure spring on carrier

Definitions

  • the invention relates to a contact bridge arrangement with fixed contact pieces and with this contact bridge which can be brought into operative connection and which is guided in a window of a contact bridge support in the direction of the fixed contact pieces arranged fixed to the housing and is spring-loaded, the spring being supported via a support part which is supported when it is supported parts fixed to the housing are lifted off a stop in the window of the contact bridge support.
  • the invention is based on the object of designing a contact bridge arrangement of the type mentioned above functioning as an NC contact so that the support part provided for NC contact support can be installed in the contactor which is already fully assembled with its remaining parts.
  • the support part is a slide which can be inserted between a spring plate and the stop in the window of the contact bridge support from the outside of the contact bridge arrangement transversely to the direction of loading of the spring, the stop and the slide being inclined contact surfaces to have.
  • a further tensioning of the spring and the prevention of incorrect insertion of the slide can be ensured if the parts fixed to the housing are arranged to rise in the direction of insertion of the slide and the slide is provided with a compensation approach that is corresponding to the gradient difference.
  • the insertion process is further simplified if both the part fixed to the housing in the insertion direction of the slide and the compensating shoulder of the slide have sloping contact surfaces.
  • it is advantageous if, in order to ensure that the slide is inserted into the housing in a manner secure against rotation, approaches are provided on the slide for the contact arrangement, which protrude into recesses in the housing.
  • the switching device shown in the drawing consists of the contact bridge support 2, which is guided in the housing 1 and is provided with windows 3 and 4, in which contact bridges 5 are guided so as to be displaceable against the force of the springs 6.
  • the springs 6 are supported on the spring plates 7 on the contact bridges 5 on the one hand and rest on the spring plates 8 against a stop 9 or 10 of the window 3 or 4.
  • the contact bridge 5 located at the top in FIG. 1 works with the fixed contact pieces 11 as a break contact and with the fixed contact pieces 12 the contact link 5, which is displaceably guided in the window 4, works together as a make contact.
  • a so-called opener support which consists of the slide 13, which is inserted between the stop 9 in the contact bridge window 4 and the spring plate 8 .
  • the slide In Fig. 1 the slide is already brought into contact with the spring plate 8; in Fig. 2 it is inserted into the operating position.
  • the support surface (part 16) on the left in the drawing is arranged lower than that on the right (part 17).
  • the incline is provided such that after the spring plate 8 is lifted off the stop 9 and the slide 13 has penetrated with its strength between the two parts, the contact surface 15 fits snugly against the part 17 and the slide 13 is then raised further.
  • a compensating shoulder 18 on the slide 13 comes to rest on the part 16.
  • inclined surfaces 19 and 20 on the slide 13 and on the part 16 are also used here again.
  • the special design of the slide 13 can be seen from FIGS. 4 to 6, to which reference is made here.
  • the slide 13 has in the region of the compensating projection 18 projections 21 which engage in groove-shaped recesses 22 in the housing 1 when the slide 13 is inserted.
  • the lugs 21 are arranged asymmetrically such that the slide 13 can only be inserted in the position shown in the drawing.
  • a stop 23 limits the insertion movement of the slide 13.
  • an opener support was created by the slide according to the invention, which allows a relatively high preload in a simple manner, without having to move the contact bridge support to the extreme position and without being able to remove the parts 16 and 17 fixed to the housing, with a divided housing to have to work.
  • the arrangement according to the invention is particularly suitable for assembly by a machine and, on the other hand, the slide can only be inserted in one position, so that incorrect insertion is generally prevented.

Landscapes

  • Contacts (AREA)
  • Slide Switches (AREA)
  • Window Of Vehicle (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
  • Junction Field-Effect Transistors (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Bridges Or Land Bridges (AREA)
  • Push-Button Switches (AREA)
  • Stringed Musical Instruments (AREA)

Abstract

A contact bridge arrangement useful particularly in electromagnetic switchgear has a set of fixed contacts and a contact bridge which can be brought into active connection therewith. The contact bridge is movably guided in a window of a contact bridge carrier being spring loaded in the direction of the fixed contacts by a spring which is braced on a support part which is carried, in the active position, on parts fixed to the housing and which is elevated by a stop in the window of the contact bridge carrier. The support part is inserted between a spring cup and the stop in the window of the contact bridge carrier from the outside of the contact bridge assembly in a direction transverse to the direction of the spring loading.

Description

Die Erfindung bezieht sich auf eine Kontaktbrückenanordnung mit Festschaltstücken und mit diesen in Wirkverbindung bringbarer Kontaktbrücke, die in einem Fenster eines Kontaktbrückenträgers in Richtung auf die gehäusefest angeordneten Festschaltstücke federkraftbelastet verschiebbar geführt ist, wobei die Abstützung der Feder über ein Abstützungsteil erfolgt, welches bei seiner Abstützung an gehäusefesten Teilen von einem Anschlag im Fenster des Kontaktbrückenträgers abgehoben ist.The invention relates to a contact bridge arrangement with fixed contact pieces and with this contact bridge which can be brought into operative connection and which is guided in a window of a contact bridge support in the direction of the fixed contact pieces arranged fixed to the housing and is spring-loaded, the spring being supported via a support part which is supported when it is supported parts fixed to the housing are lifted off a stop in the window of the contact bridge support.

Bei einer bekannten Kontaktbrückenanordnung der obengenannten Art (US-A-25 45 986) wird das mit seitlichen Ansätzen versehene Stützteil durch Verkanten vor der Montage des Kontaktbrückenträgers im Gehäuse in das Fenster eingeführt. Das Gehäuse ist daher zweiteilig ausgeführt und deren Teile werden miteinander vernietet.In a known contact bridge arrangement of the type mentioned above (US-A-25 45 986), the supporting part provided with side lugs is inserted into the window by tilting before the contact bridge carrier is mounted in the housing. The housing is therefore made in two parts and their parts are riveted together.

Der Erfindung liegt die Aufgabe zugrunde, eine als Öffnerkontakt arbeitende Kontaktbrückenanordnung der obengenannten Art so auszubilden, dass das zur Öffnerabstützung vorgesehene Stützteil automatengerecht in das mit seinen übrigen Teilen bereits fertig montierte Schütz einbaubar ist.The invention is based on the object of designing a contact bridge arrangement of the type mentioned above functioning as an NC contact so that the support part provided for NC contact support can be installed in the contactor which is already fully assembled with its remaining parts.

Dies wird bei einer Anordnung der obengenannten Art dadurch erreicht, dass das Abstützungsteil ein Schieber ist, der zwischen einem Federteller und dem Anschlag im Fenster des Kontaktbrückenträgers von der Aussenseite der Kontaktbrückenanordnung quer zur Belastungsrichtung der Feder einschiebbar ist, wobei der Anschlag und der Schieber schräge Anlaufflächen haben. Zusätzlich zum automatischen Anheben des Federtellers kann ein weiteres Spannen der Feder sowie das Verhindern des falschen Einsetzens des Schiebers gewährleistet werden, wenn die gehäusefesten Teile in Einschubrichtung des Schiebers steigend angeordnet und der Schieber mit einem dem Steigungsunterschied entsprechend hohen Ausgleichsansatz versehen ist. Der Einschubvorgang wird weiterhin vereinfacht, wenn sowohl das in Einschubrichtung des Schiebers erste gehäusefeste Teil als auch der Ausgleichsansatz des Schiebers schräge Anlaufflächen haben. Weiterhin ist es vorteilhaft, wenn zur Gewährleistung eines verdrehsicheren Einführens des Schiebers in das Gehäuse für die Kontaktanordnung an dem Schieber Ansätze vorgesehen sind, die in Ausnehmungen im Gehäuse ragen.This is achieved with an arrangement of the type mentioned above in that the support part is a slide which can be inserted between a spring plate and the stop in the window of the contact bridge support from the outside of the contact bridge arrangement transversely to the direction of loading of the spring, the stop and the slide being inclined contact surfaces to have. In addition to the automatic lifting of the spring plate, a further tensioning of the spring and the prevention of incorrect insertion of the slide can be ensured if the parts fixed to the housing are arranged to rise in the direction of insertion of the slide and the slide is provided with a compensation approach that is corresponding to the gradient difference. The insertion process is further simplified if both the part fixed to the housing in the insertion direction of the slide and the compensating shoulder of the slide have sloping contact surfaces. Furthermore, it is advantageous if, in order to ensure that the slide is inserted into the housing in a manner secure against rotation, approaches are provided on the slide for the contact arrangement, which protrude into recesses in the housing.

Anhand der Zeichnung wird ein Ausführungsbeispiel gemäss der Erfindung beschrieben und die Wirkungsweise näher erläutert.An exemplary embodiment according to the invention is described with reference to the drawing and the mode of operation is explained in more detail.

Es zeigt

  • Fig. 1 eine Schnittdarstellung im Bereich des Abstützungsteiles durch ein Schaltgerät mit zwei Kontaktbrücken und den zugehörigen Festschaltstücken bei noch nicht eingeschobenem Schieber,
  • Fig. 2 eine der Fig. 1 entsprechende Darstellung bei eingeschobenem Schieber,
  • Fig. 3 eine um 90° versetzte Schnittdarstellung durch das Gerät nach Fig. 1 im Bereich des Schiebers und
  • Fig. 4, 5 und 6 Draufsicht, Seitenansicht und Vorderansicht auf den gemäss der Erfindung ausgebildeten Schieber.
It shows
  • 1 is a sectional view in the region of the support part through a switching device with two contact bridges and the associated fixed contact pieces when the slide is not yet inserted,
  • 2 shows a representation corresponding to FIG. 1 when the slide is inserted,
  • Fig. 3 is a 90 ° offset sectional view through the device of FIG. 1 in the area of the slide and
  • 4, 5 and 6 top view, side view and front view of the slide designed according to the invention.

Das in der Zeichnung dargestellte Schaltgerät besteht aus dem in dem Gehäuse 1 verschiebbar geführten Kontaktbrückenträger 2, der mit Fenstern 3 und 4 versehen ist, in denen Kontaktbrükken 5 verschiebbar entgegen der Kraft der Federn 6 geführt sind. Die Federn 6 stützen sich über die Federteller 7 an den Kontaktbrücken 5 einerseits ab und liegen über die Federteller 8 an einem Anschlag 9 bzw. 10 des Fensters 3 bzw. 4 an. Die in der Fig. 1 oben liegende Kontaktbrücke 5 arbeitet mit den Festschaltstücken 11 als Öffnerkontakt und mit den Festschaltstücken 12 arbeitet die Kontaktbrücke 5, die im Fenster 4 verschiebbar geführt ist, als Schliesserkontakt zusammen. Um einen im wesentlichen günstigeren Kraftbedarf und eine gleichmässige Kraftverteilung bei Bewegung des Kontaktbrückenträgers 2 über den gesamten Schaltweg zu erreichen, wird eine sogenannte Öffnerabstützung vorgesehen, die aus dem Schieber 13, der zwischen den Anschlag 9 im Kontaktbrückenfenster 4 und den Federteller 8 eingeschoben wird, besteht. In Fig. 1 ist der Schieber bereits zur Anlage am Federteller 8 gebracht; in Fig. 2 ist er in die Betriebslage eingeschoben. Um das Einschieben zu erleichtern, befinden sich an dem Anschlag 9 und dem Schieber 13 schräge Anlaufflächen 14 bzw. 15. Die gehäusefesten Teile, an denen sich der Schieber 13 abstützt, tragen die Bezugszeichen 16 bzw. 17 und sind treppenförmig angeordnet, d. h. in Einschubrichtung steigend ist die in der Zeichnung links liegende Abstützungsfläche (Teil 16) tiefer als die rechts liegende (Teil 17) angeordnet. Die Steigung ist derart vorgesehen, dass, nachdem der Federteller 8 von dem Anschlag 9 abgehoben ist und der Schieber 13 mit seiner Stärke zwischen beiden Teilen eingedrungen ist, die Anlauffläche 15 passend am Teil 17 anliegt und hiernach der Schieber 13 weiter angehoben wird. Ein Ausgleichsansatz 18 am Schieber 13 kommt zur Auflage am Teil 16. Zum besseren Einführen dienen auch hier wieder schräge Flächen 19 bzw. 20 am Schieber 13 bzw. am Teil 16.The switching device shown in the drawing consists of the contact bridge support 2, which is guided in the housing 1 and is provided with windows 3 and 4, in which contact bridges 5 are guided so as to be displaceable against the force of the springs 6. The springs 6 are supported on the spring plates 7 on the contact bridges 5 on the one hand and rest on the spring plates 8 against a stop 9 or 10 of the window 3 or 4. The contact bridge 5 located at the top in FIG. 1 works with the fixed contact pieces 11 as a break contact and with the fixed contact pieces 12 the contact link 5, which is displaceably guided in the window 4, works together as a make contact. In order to achieve a substantially cheaper power requirement and a uniform force distribution when the contact bridge support 2 moves over the entire switching path, a so-called opener support is provided, which consists of the slide 13, which is inserted between the stop 9 in the contact bridge window 4 and the spring plate 8 . In Fig. 1 the slide is already brought into contact with the spring plate 8; in Fig. 2 it is inserted into the operating position. In order to facilitate insertion, there are oblique contact surfaces 14 and 15 on the stop 9 and the slide 13. The parts fixed to the housing, on which the slide 13 is supported, bear the reference symbols 16 and 17 and are arranged in a step-like manner. H. Rising in the direction of insertion, the support surface (part 16) on the left in the drawing is arranged lower than that on the right (part 17). The incline is provided such that after the spring plate 8 is lifted off the stop 9 and the slide 13 has penetrated with its strength between the two parts, the contact surface 15 fits snugly against the part 17 and the slide 13 is then raised further. A compensating shoulder 18 on the slide 13 comes to rest on the part 16. For better insertion, inclined surfaces 19 and 20 on the slide 13 and on the part 16 are also used here again.

Die spezielle Ausführung des Schiebers 13 ist aus den Fig. 4 bis 6 zu ersehen, auf die hier verwiesen wird. Der Schieber 13 hat im Bereich des Ausgleichsansatzes 18 Ansätze 21, die in nutenförmige Ausnehmungen 22 im Gehäuse 1 im eingeschobenen Zustand des Schiebers 13 eingreifen. Die Ansätze 21 sind derart asymmetrisch angeordnet, dass der Schieber 13 nur in der aus der Zeichnung ersichtlichen Lage einschiebbar ist. Ein Anschlag 23 begrenzt die Einschubbewegung des Schiebers 13.The special design of the slide 13 can be seen from FIGS. 4 to 6, to which reference is made here. The slide 13 has in the region of the compensating projection 18 projections 21 which engage in groove-shaped recesses 22 in the housing 1 when the slide 13 is inserted. The lugs 21 are arranged asymmetrically such that the slide 13 can only be inserted in the position shown in the drawing. A stop 23 limits the insertion movement of the slide 13.

Es ist also ersichtlich, dass durch den erfindungsgemässen Schieber eine Öffnerabstützung geschaffen wurde, die auf einfache Weise eine relativ hohe Vorspannung erlaubt, ohne hierbei den Kontaktbrückenträger in Extremstellung verschieben zu müssen und ohne die gehäusefesten Teile 16 und 17 entfernen zu können, mit einem geteilten Gehäuse arbeiten zu müssen. Die erfindungsgemässe Anordnung eignet sich besonders zur Montage durch einen Automaten und zum anderen ist der Schieber nur in einer Stellung einschiebbar, so dass ein falsches Einsetzen generell verhindert ist.It can thus be seen that an opener support was created by the slide according to the invention, which allows a relatively high preload in a simple manner, without having to move the contact bridge support to the extreme position and without being able to remove the parts 16 and 17 fixed to the housing, with a divided housing to have to work. The arrangement according to the invention is particularly suitable for assembly by a machine and, on the other hand, the slide can only be inserted in one position, so that incorrect insertion is generally prevented.

Claims (4)

1. A contact bridge arrangement comprising fixed contacts (11) and a contact bridge (5) which can be brought into an operative connection with these contacts, and which, elastically loaded (spring 6), is guided for movement in a window (3) in a contact bridge carrier (2) in the direction towards the fixed contacts (11) which are fixed to a housing, wherein the supporting of the spring (6) is effected by means of a supporting element which, by its support on elements (16, 17) which are fixed to the housing, is lifted off a stop (9) in the window (3) of the contact bridge carrier (2), characterised in that the supporting element is a slide (13) which can be inserted from outside the contact bridge arrangement between a spring plate (8) and the stop (9) in the window (3) of the contact bridge carrier in a direction transverse to the direction of loading of the spring (6), the stop (9) and the slide (13) having sloping running surfaces (14,15).
2. An arrangement as claimed in Claim 1, characterised in that the elements (16, 17) which are fixed to the housing are arranged at different heights in the direction of insertion of the slide (13), and the slide (13) is provided with an adjusting attachment (18), the height of which corresponds to the difference in height of the elements (16,17).
3. An arrangement as claimed in Claim 2, characterised in that both the element (16) which is first fixed to the housing considered in the direction of insertion of the slide (13), and the adjusting attachment (18) of the slide (13) have sloping running surfaces (19, 20).
4. An arrangement as claimed in one of Claims 1 to 3, characterised in that, in order to ensure insertion of the slide (13) without twisting into the housing (1) for the contact arrangement, the slide (13) is provided with lugs which project into recesses (22) in the housing (1).
EP79102477A 1978-07-31 1979-07-16 Contact bridge assembly Expired EP0007551B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79102477T ATE528T1 (en) 1978-07-31 1979-07-16 JUMPER ARRANGEMENT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2833537A DE2833537C2 (en) 1978-07-31 1978-07-31 Contact bridge arrangement
DE2833537 1978-07-31

Publications (2)

Publication Number Publication Date
EP0007551A1 EP0007551A1 (en) 1980-02-06
EP0007551B1 true EP0007551B1 (en) 1981-12-30

Family

ID=6045844

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79102477A Expired EP0007551B1 (en) 1978-07-31 1979-07-16 Contact bridge assembly

Country Status (11)

Country Link
US (1) US4262179A (en)
EP (1) EP0007551B1 (en)
JP (1) JPS5521897A (en)
AT (1) ATE528T1 (en)
BR (1) BR7904876A (en)
DE (1) DE2833537C2 (en)
DK (1) DK146079C (en)
ES (1) ES482910A1 (en)
FI (1) FI67153C (en)
IN (1) IN151394B (en)
MX (1) MX147318A (en)

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Also Published As

Publication number Publication date
DK319479A (en) 1980-02-01
DE2833537A1 (en) 1980-02-14
FI67153C (en) 1985-01-10
IN151394B (en) 1983-04-09
BR7904876A (en) 1980-04-29
DK146079B (en) 1983-06-20
FI67153B (en) 1984-09-28
ES482910A1 (en) 1980-04-16
MX147318A (en) 1982-11-10
US4262179A (en) 1981-04-14
DK146079C (en) 1983-11-14
ATE528T1 (en) 1982-01-15
JPS5521897A (en) 1980-02-16
EP0007551A1 (en) 1980-02-06
FI791431A (en) 1980-02-01
DE2833537C2 (en) 1981-09-17

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