EP1224677A1 - Switch with fuse unit - Google Patents

Switch with fuse unit

Info

Publication number
EP1224677A1
EP1224677A1 EP00977805A EP00977805A EP1224677A1 EP 1224677 A1 EP1224677 A1 EP 1224677A1 EP 00977805 A EP00977805 A EP 00977805A EP 00977805 A EP00977805 A EP 00977805A EP 1224677 A1 EP1224677 A1 EP 1224677A1
Authority
EP
European Patent Office
Prior art keywords
switch
housing
fuse
unit
locking mechanism
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
EP00977805A
Other languages
German (de)
French (fr)
Other versions
EP1224677B1 (en
Inventor
Anton Semrov
Miran Dolinsek
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.)
ETI Elektroelement dd
Original Assignee
ETI Elektroelement dd
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
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Application filed by ETI Elektroelement dd filed Critical ETI Elektroelement dd
Publication of EP1224677A1 publication Critical patent/EP1224677A1/en
Application granted granted Critical
Publication of EP1224677B1 publication Critical patent/EP1224677B1/en
Anticipated expiration legal-status Critical
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/10—Adaptation for built-in fuses
    • H01H9/104—Adaptation for built-in fuses with interlocking mechanism between switch and fuse
    • 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

Definitions

  • the invention relates to a switch with a housing, a switching lever mounted on the housing and pivotable between a switch-on position and a switch-off position, and a fuse unit that can be detachably inserted into the housing.
  • the fuse unit of such a switch is formed, for example, by a fuse and serves to interrupt the circuit closed with the aid of the switch when the current exceeds a permissible value.
  • the fuse unit consists of a fuse insert designed as a cartridge and provided with electrical contacts at its opposite ends and an associated holder. When changing the fuse, the new fuse insert is inserted into the holder and then inserted into the switch housing with the help of the holder so that its electrical contacts are held in a clamped manner between contacts of the switch housing. This can lead to malfunctions if the fuse unit is not inserted correctly into the housing.
  • the object of the invention is to improve the functional reliability of such a switch.
  • This object is achieved in a switch of the type mentioned at the outset by a locking mechanism which scans the position of the securing unit and prevents the switching lever from pivoting into the switched-on position when the securing unit is not in the correct position.
  • the locking mechanism prevents the switching lever from being pivoted into the switched-on position. In this way, the error is immediately recognizable to the user so that he can correct the position of the securing unit.
  • the switch can therefore only be switched on if the fuse unit is correctly inserted and its electrical contacts are correctly seated on the corresponding counter-contacts of the switch housing. This is how prevent casually that due to the incorrect position of the fuse unit there is still a spark gap between the contacts of the fuse unit and the counter-contacts and thus sparking occurs when the switch is closed. In addition, it is ensured that the fuse unit is in its correct position when the switch is closed, and thus after the associated electrical system has been started up, there can be no power interruptions due to faulty contact of the fuse unit.
  • the locking mechanism is preferably formed by a nose formed on the shift lever, which, when the securing unit is in the correct position, enters a recess in the holder of the securing unit provided for this purpose when the shift lever is pivoted into the switched-on position, and on the bracket strikes and prevents the shift lever from pivoting if the fuse unit is not inserted correctly.
  • the fuse unit is preferably fastened in the switch housing with the aid of a spring which prestresses a contact which is movably held in the switch housing against an electrode of the fuse link and thus at the same time ensures the necessary contact pressure.
  • the recess for the nose of the switching lever is then preferably located at the end of the securing unit, which is opposite the end acted upon by the spring, so that the securing unit cannot deflect and then return to the faulty position after the switch is closed. If necessary.
  • the arrangement can be such that the securing unit is moved into its correct position by the nose of the shift lever.
  • Fig. 2 shows the switch of Figure 1 in the closed state.
  • Fig. 3 shows the switch of Fig. 1 with an incorrectly inserted fuse unit.
  • the switch has a housing 10 made of electrically insulating plastic, which is designed in a known manner as a Klernmschienengereheatuse and for this purpose has at its lower edge in the drawing a locking mechanism 12 for locking on a terminal rail, not shown, of a fuse and distribution box or the like. Cable clamps 14 and 16 on opposite ends of the housing 10 serve for the fastening of connecting cables, not shown, between which an electrical contact can be made and broken with the aid of the switch.
  • a shift lever 18 is pivotally mounted about an axis 20 in the housing 10 and acts via a switching cam 22 and an articulated intermediate member 24 on a switching bridge 26 which is slidably guided between ribs formed on the housing 10.
  • the cable clamp 14 is electrically connected to a contact plate 28, which forms an electrical contact 30 opposite the switching bridge 26.
  • An intermediate contact plate 32 is held in the housing 10 in such a way that its one end is aligned with the contact plate 28, but is spaced therefrom by a clear gap and is opposite the switching bridge 26 with a further electrical contact 34.
  • the contact bridge 26 is biased by a compression spring 36 in the direction of the contacts 30 and 34, but is still held in the state shown in FIG. 1 by the intermediate member 24 at a distance from the contacts 30 and 34, so that the switch is not yet closed is.
  • Another contact plate 38 is connected to the other cable clamp 16 and, together with the intermediate contact plate 32, forms a clamp fit for a fuse unit 40.
  • the fuse unit 40 has an essentially U-shaped holder 42, into which a fuse insert 44 can be inserted in such a way that electrodes 46 and 48 at the opposite ends of the fuse are freely accessible.
  • the intermediate contact plate 32 forms a seat for the holder 42 and a mating contact for the electrode 46 of the fuse link.
  • the free end of the intermediate contact plate 32 is supported by a compression spring 50 on the housing 10 so that the intermediate contact plate is pressed firmly against the electrode 46 and thus the electrode 48 seated at the opposite end of the fuse link 44 presses firmly against the contact plate 38.
  • the holder 42 is inserted into the housing 10 in a slight tilting movement and, in the vicinity of the contact 48, has a locking lug 52 which engages behind a rib 54 of the housing and thus fixes the holder 42 in its position in the housing 10.
  • the upper end of the holder 42 forms a support 56 for the free end of the shift lever 18th
  • a nose 58 is formed on the switching cam 22, which in turn is rigidly connected to the switching lever 18, on the side facing the securing unit 40.
  • a recess 60 in the opposite outer wall of the holder 42 is assigned to this nose 58.
  • the switching cam 22 forms, together with the compression spring 36, a dead center mechanism for the switching lever 18.
  • the switching lever 18 has already been pivoted so far to the right towards its closed position that the switching cam has exceeded the dead center and is pivoted further towards the closed position by the intermediate member 24 acted upon by the compression spring 36.
  • Fig. 2 shows the state in which the shift lever is pivoted fully into the closed position and rests on the support 56.
  • the switching bridge 26 is held in contact with the contacts 30 and 34 by the compression spring 36, so that the cable clamps 14 and 16 are electrically connected to one another via the contact plates 28, 32 and 38 and the fuse link 44.
  • the nose 58 rigidly connected to the shift lever 18 lies in the recess 60 of the holder 42 of the securing unit.
  • the fuse link 44 can be changed when the fuse is changed remove the holder 42 from the housing 10. After a new fuse link 44 has been inserted into the holder 42, it is again placed against the intermediate contact plate 32 and hooked onto the rib 54 of the housing with its locking lug 52.
  • Fig. 3 shows the switch in a state in which the holder 42 has not been inserted correctly.
  • the locking lug 52 does not engage behind the rib 54, but is supported unstably at the end of the rib 54.
  • the electrode 48 of the fuse link 44 therefore forms a spark gap with the contact plate 38.
  • the holder 42 assumes a somewhat inclined position in this state, its upper edge, on the left in FIG. 3, lies in the path of movement of the nose 58 of the switching lever 18. If one tries to pivot the switching lever 18 into the closed position, the nose 58 abuts above the recess 60 at the upper edge of the holder 42, so that the switching lever 18 does not pivot further and thus the contact bridge 26 does not move into the closed position can move. Only when the seat of the holder 42 has been corrected can the nose 58 re-enter the recess 60 so that the switch can be closed.

Landscapes

  • Fuses (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Keying Circuit Devices (AREA)
  • Cookers (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The invention relates to a switch, comprising a housing (10), a switch lever (18), mounted in the housing, which can be pivoted between an on-position and an off-position and a detachable fuse unit (40), which may be mounted in the housing (10). The invention is further characterised by a lock mechanism (58, 60), which senses the position of the fuse unit (40) and impedes the movement of the switch lever (18) into the on-position when the fuse unit (40) is not in the correct position.

Description

SCHALTER MIT SICHERUNGSEINHEIT SWITCH WITH FUSE UNIT
Die Erfindung betrifft einen Schalter mit einem Gehäuse, einem am Gehäuse gelagerten, zwischen einer Einschaltstellung und einer Ausschaltstellung schwenkbaren Schalthebel und einer lösbar in das Gehäuse einsetzbaren Sicherungseinheit.The invention relates to a switch with a housing, a switching lever mounted on the housing and pivotable between a switch-on position and a switch-off position, and a fuse unit that can be detachably inserted into the housing.
Die Sicherungseinheit eines solchen Schalters wird beispielsweise durch eine Schmelzsicherung gebildet und dient dazu, den mit Hilfe des Schalters geschlos- senen Stromkreis zu unterbrechen, wenn die Stromstärke einen zulässigen Wert übersteigt. Bei bekannten Schaltern dieser Art besteht die Sicherungseinheit aus einem als Patrone ausgebildeten und mit elektrischen Kontakten an seinen entgegengesetzten Enden versehenen Sicherungseinsatz und einem zugehörigen Halter. Bei einem Sicherungswechsel wird der neue Sicherungseinsatz in den Halter eingelegt und dann mit Hilfe des Halters so in das Schaltergehäuse eingesetzt, daJ3 ihre elektrischen Kontakte klemmend zwischen Kontakten des Schaltergehäuses gehalten sind. Dabei kann es zu Fehlfunktionen kommen, wenn die Sicherungseinheit nicht korrekt in das Gehäuse eingesetzt wird.The fuse unit of such a switch is formed, for example, by a fuse and serves to interrupt the circuit closed with the aid of the switch when the current exceeds a permissible value. In known switches of this type, the fuse unit consists of a fuse insert designed as a cartridge and provided with electrical contacts at its opposite ends and an associated holder. When changing the fuse, the new fuse insert is inserted into the holder and then inserted into the switch housing with the help of the holder so that its electrical contacts are held in a clamped manner between contacts of the switch housing. This can lead to malfunctions if the fuse unit is not inserted correctly into the housing.
Aufgabe der Erfindung ist es, die Funktionssicherheit eines solchen Schalters zu verbessern.The object of the invention is to improve the functional reliability of such a switch.
Diese Aufgabe wird bei einem Schalter der eingangs genannten Art gelöst durch einen Sperrmechanismus, der die Position der Sicherungseinheit abtastet und das Verschwenken des Schalthebels in die Einschaltstellung verhindert, wenn die Sicherungseinheit sich nicht in der korrekten Position befindet.This object is achieved in a switch of the type mentioned at the outset by a locking mechanism which scans the position of the securing unit and prevents the switching lever from pivoting into the switched-on position when the securing unit is not in the correct position.
Falls die Sicherungseinheit nicht richtig in das Gehäuse eingesetzt wurde und sich somit nicht in der vorgesehenen Endlage zwischen den Kontakten des Schaltergehäuses befindet, so verhindert der Sperrmechanismus, daß der Schalthebel in die Einschaltstellung geschwenkt werden kann. Auf diese Weise ist der Fehler für den Benutzer sofort erkennbar, so daß er die Position der Sicherungseinheit korrigieren kann.If the fuse unit has not been inserted correctly into the housing and is therefore not in the intended end position between the contacts of the switch housing, the locking mechanism prevents the switching lever from being pivoted into the switched-on position. In this way, the error is immediately recognizable to the user so that he can correct the position of the securing unit.
Der Schalter läßt sich somit nur dann einschalten, wenn die Sicherungseinheit korrekt eingesetzt ist und mit ihren elektrischen Kontakten korrekt an den entsprechenden Gegenkontakten des Schaltergehäuses anliegt. So läßt sich zuver- lässig verhindern, da-ß aufgrund der falschen Position der Sicherungseinheit noch ein Funkenspalt zwischen den Kontakten der Sicherungseinheit und den Gegenkontakten besteht und es somit beim Schließen des Schalters zu einer Funkenbildung kommt. Außerdem ist gewährleistet, da_ß die Sicherungseinheit sich in ihrer korrekten Position befindet, wenn der Schalter geschlossen wird, und somit nach Inbetriebnahme der zugehörigen elektrischen Anlage keine Stromunterbrechungen aufgrund fehlerhaften Kontaktes der Sicherungseiheit auftreten können.The switch can therefore only be switched on if the fuse unit is correctly inserted and its electrical contacts are correctly seated on the corresponding counter-contacts of the switch housing. This is how prevent casually that due to the incorrect position of the fuse unit there is still a spark gap between the contacts of the fuse unit and the counter-contacts and thus sparking occurs when the switch is closed. In addition, it is ensured that the fuse unit is in its correct position when the switch is closed, and thus after the associated electrical system has been started up, there can be no power interruptions due to faulty contact of the fuse unit.
Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Advantageous refinements of the invention result from the subclaims.
Bevorzugt wird der Sperrmechanismus durch eine am Schalthebel ausgebildete Nase gebildet, die, wenn sich die Sicherungseinheit in der korrekten Position be- findet, in eine hierfür vorgesehene Ausnehmung des Halters der Sicherungseinheit eintritt, wenn der Schalthebel in die Einschaltstellung geschwenkt wird, und die am Halter anschlägt und ein Verschwenken des Schalthebels verhindert, falls die Sicherungseinheit nicht korrekt eingesetzt ist.The locking mechanism is preferably formed by a nose formed on the shift lever, which, when the securing unit is in the correct position, enters a recess in the holder of the securing unit provided for this purpose when the shift lever is pivoted into the switched-on position, and on the bracket strikes and prevents the shift lever from pivoting if the fuse unit is not inserted correctly.
Die Befestigung der Sicherungseinheit im Schaltergehäuse erfolgt vorzugsweise mit Hilfe einer Feder, die einen beweglich im Schaltergehäuse gehaltenen Kontakt gegen eine Elektrode des Sicherungseinsatzes vorspannt und somit zugleich den nötigen Kontaktdruck gewährleistet. Die Ausnehmung für die Nase des Schalthebels befindet sich dann vorzugsweise an dem Ende der Sicherungsein- heit, das dem durch die Feder beaufschlagten Ende entgegengesetzt ist, so da_ß die Sicherungseinheit nicht ausweichen und dann nach Schließen des Schalters wieder in die fehlerhafte Position zurückkehren kann. Ggfs. kann die Anordnung jedoch so getroffen sein, daj3 die Sicherungseinheit durch die Nase des Schalthebels in ihre korrekte Position verschoben wird.The fuse unit is preferably fastened in the switch housing with the aid of a spring which prestresses a contact which is movably held in the switch housing against an electrode of the fuse link and thus at the same time ensures the necessary contact pressure. The recess for the nose of the switching lever is then preferably located at the end of the securing unit, which is opposite the end acted upon by the spring, so that the securing unit cannot deflect and then return to the faulty position after the switch is closed. If necessary. However, the arrangement can be such that the securing unit is moved into its correct position by the nose of the shift lever.
Im folgenden wird ein Ausführungsbeispiel anhand der Zeichnung näher erläutert.An exemplary embodiment is explained in more detail below with reference to the drawing.
Es zeigen:Show it:
Fig. 1 eine Ansicht des Schalters bei geöffnetem Gehäuse in teilweise geöffnetem Zustand und bei korrekt eingesetzter Sicherungsei- heit;1 is a view of the switch with the housing open in the partially open state and with the safety catch properly inserted. Ness;
Fig. 2 den Schalter nach Fig. 1 in geschlossenem Zustand; undFig. 2 shows the switch of Figure 1 in the closed state. and
Fig. 3 den Schalter nach Fig. 1 bei fehlerhaft eingesetzter Sicherungseinheit.Fig. 3 shows the switch of Fig. 1 with an incorrectly inserted fuse unit.
Der Schalter weist ein Gehäuse 10 aus elektrisch isolierendem Kunststoff auf, das in bekannter Weise als Klernmschienengehäuse ausgebildet ist und zu diesem Zweck an seinem in der Zeichnung unteren Rand einen Rastmechanismus 12 für die Verrastung an einer nicht gezeigten Klemmschiene eines Sicherungsund Verteilerkastens oder dergleichen aufweist. Kabelklemmen 14 und 16 an entgegengesetzten Enden des Gehäuses 10 dienen zur Klemmbefestigung nicht gezeigter Anschlußkabel, zwischen denen mit Hilfe des Schalters ein elektrischer Kontakt hergestellt und unterbrochen werden kann.The switch has a housing 10 made of electrically insulating plastic, which is designed in a known manner as a Klernmschienengehäuse and for this purpose has at its lower edge in the drawing a locking mechanism 12 for locking on a terminal rail, not shown, of a fuse and distribution box or the like. Cable clamps 14 and 16 on opposite ends of the housing 10 serve for the fastening of connecting cables, not shown, between which an electrical contact can be made and broken with the aid of the switch.
Ein Schalthebel 18 ist um eine Achse 20 schwenkbar im Gehäuse 10 gelagert und wirkt über einen Schaltnocken 22 und ein gelenkiges Zwischenglied 24 auf eine Schaltbrücke 26, die verschiebbar zwischen an das Gehäuse 10 angeformten Rippen geführt ist. Die Kabelklemme 14 ist elektrisch mit einem Kontaktblech 28 verbunden, das einen der Schaltbrücke 26 gegenüberliegenden elektrischen Kontakt 30 bildet. Ein Zwischenkontaktblech 32 ist so im Gehäuse 10 gehalten, daß sein eines Ende mit dem Kontaktblech 28 fluchtet, jedoch durch ei- nen deutlichen Zwischenraum davon beabstandet ist und der Schaltbrücke 26 mit einem weiteren elektrischen Kontakt 34 gegenüberliegt. Die Kontaktbrücke 26 ist durch eine Druckfeder 36 in Richtung auf die Kontakte 30 und 34 vorgespannt, wird jedoch in dem in Fig. 1 gezeigten Zustand noch durch das Zwischenglied 24 auf Abstand zu den Kontakten 30 und 34 gehalten, so daß der Schalter noch nicht geschlossen ist.A shift lever 18 is pivotally mounted about an axis 20 in the housing 10 and acts via a switching cam 22 and an articulated intermediate member 24 on a switching bridge 26 which is slidably guided between ribs formed on the housing 10. The cable clamp 14 is electrically connected to a contact plate 28, which forms an electrical contact 30 opposite the switching bridge 26. An intermediate contact plate 32 is held in the housing 10 in such a way that its one end is aligned with the contact plate 28, but is spaced therefrom by a clear gap and is opposite the switching bridge 26 with a further electrical contact 34. The contact bridge 26 is biased by a compression spring 36 in the direction of the contacts 30 and 34, but is still held in the state shown in FIG. 1 by the intermediate member 24 at a distance from the contacts 30 and 34, so that the switch is not yet closed is.
Mit der anderen Kabelklemme 16 ist ein weiteres Kontaktblech 38 verbunden, das zusammen mit dem Zwischenkontaktblech 32 einen Klemmsitz für eine Sicherungseinheit 40 bildet. Die Sicherungseinheit 40 weist einen im wesentlichen U-förmig gestalteten Halter 42 auf, in den ein Sicherungseinsatz 44 so einlegbar ist, daß Elektroden 46 und 48 an den entgegengesetzten Enden des Sicherungs- einsatz frei zugänglich sind.Another contact plate 38 is connected to the other cable clamp 16 and, together with the intermediate contact plate 32, forms a clamp fit for a fuse unit 40. The fuse unit 40 has an essentially U-shaped holder 42, into which a fuse insert 44 can be inserted in such a way that electrodes 46 and 48 at the opposite ends of the fuse are freely accessible.
Das Zwischenkontaktblech 32 bildet einen Sitz für den Halter 42 sowie einen Gegenkontakt für die Elektrode 46 des Sicherungseinsatzes. Das freie Ende des Zwischenkontaktbleches 32 stützt sich über eine Druckfeder 50 so am Gehäuse 10, daß das Zwischenkontaktblech fest gegen die Elektrode 46 angedrückt wird und damit die am entgegengesetzten Ende des Sicherungseinsatzes 44 sitzende Elektrode 48 fest gegen das Kontaktblech 38 andrückt. Der Halter 42 wird in einer leichten Kippbewegung in das Gehäuse 10 eingesetzt und weist in der Nähe des Kontaktes 48 eine Verriegelungsnase 52 auf, die hinter eine Rippe 54 des Gehäuses greift und so den Halter 42 in seiner Position im Gehäuse 10 fixiert. Das obere Ende des Halters 42 bildet ein Auflager 56 für das freie Ende des Schalthebels 18.The intermediate contact plate 32 forms a seat for the holder 42 and a mating contact for the electrode 46 of the fuse link. The free end of the intermediate contact plate 32 is supported by a compression spring 50 on the housing 10 so that the intermediate contact plate is pressed firmly against the electrode 46 and thus the electrode 48 seated at the opposite end of the fuse link 44 presses firmly against the contact plate 38. The holder 42 is inserted into the housing 10 in a slight tilting movement and, in the vicinity of the contact 48, has a locking lug 52 which engages behind a rib 54 of the housing and thus fixes the holder 42 in its position in the housing 10. The upper end of the holder 42 forms a support 56 for the free end of the shift lever 18th
An den Schaltnocken 22, der seinerseits starr mit dem Schalthebel 18 verbunden ist, ist auf der der Sicherungseinheit 40 zugewandten Seite eine Nase 58 angeformt. Dieser Nase 58 ist eine Ausnehmung 60 in der ihr gegenüberliegenden Außenwand des Halters 42 zugeordnet.A nose 58 is formed on the switching cam 22, which in turn is rigidly connected to the switching lever 18, on the side facing the securing unit 40. A recess 60 in the opposite outer wall of the holder 42 is assigned to this nose 58.
Der Schaltnocken 22 bildet zusammen mit der Druckfeder 36 einen Totpunktmechanismus für den Schalthebel 18. In dem in Fig. 1 gezeigten Zustand ist der Schalthebel 18 schon so weit nach rechts in Richtung auf seine Schließ Stellung verschwenkt worden, daß der Schaltnocken den Totpunkt überschritten hat und durch das von der Druckfeder 36 beaufschlagte Zwischenglied 24 weiter in Rich- tung auf die Schließstellung verschwenkt wird.The switching cam 22 forms, together with the compression spring 36, a dead center mechanism for the switching lever 18. In the state shown in FIG. 1, the switching lever 18 has already been pivoted so far to the right towards its closed position that the switching cam has exceeded the dead center and is pivoted further towards the closed position by the intermediate member 24 acted upon by the compression spring 36.
Fig. 2 zeigt den Zustand, in dem der Schalthebel ganz in die Schließstellung verschwenkt ist und auf dem Auflager 56 aufliegt. In diesem Zustand wird die Schaltbrücke 26 durch die Druckfeder 36 mit den Kontakten 30 und 34 in Be- rührung gehalten, so daß die Kabelklemmen 14 und 16 über die Kontaktbleche 28,32 und 38 und den Sicherungseinsatz 44 elektrisch miteinander verbunden sind. Weiterhin ist in Fig. 1 zu erkennen, daß die starr mit dem Schalthebel 18 verbundene Nase 58 in der Ausnehmung 60 des Halters 42 der Sicherungseinheit liegt.Fig. 2 shows the state in which the shift lever is pivoted fully into the closed position and rests on the support 56. In this state, the switching bridge 26 is held in contact with the contacts 30 and 34 by the compression spring 36, so that the cable clamps 14 and 16 are electrically connected to one another via the contact plates 28, 32 and 38 and the fuse link 44. Furthermore, it can be seen in Fig. 1 that the nose 58 rigidly connected to the shift lever 18 lies in the recess 60 of the holder 42 of the securing unit.
Wenn der Schalthebel 18 ganz nach links in die geöffnete Stellung geschwenkt ist, läßt sich bei einem Sicherungswechsel der Sicherungseinsatz 44 mit Hilfe des Halters 42 aus dem Gehäuse 10 entnehmen. Nachdem ein neuer Sicherungseinsatz 44 in den Halter 42 eingelegt wurde, wird dieser wieder gegen das Zwischenkontaktblech 32 angesetzt und mit seiner Verriegelungsnase 52 an der Rippe 54 des Gehäuses eingehakt.If the shift lever 18 is pivoted all the way to the left into the open position, the fuse link 44 can be changed when the fuse is changed remove the holder 42 from the housing 10. After a new fuse link 44 has been inserted into the holder 42, it is again placed against the intermediate contact plate 32 and hooked onto the rib 54 of the housing with its locking lug 52.
Fig. 3 zeigt den Schalter in einem Zustand, in dem der Halter 42 nicht korrekt eingesetzt wurde. In diesem Fall greift die Verriegelungsnase 52 nicht hinter die Rippe 54, sondern sie stützt sich instabil am Ende der Rippe 54 ab. Die Elektrode 48 des Sicherungseinsatzes 44 bildet daher einen Funkenspalt mit dem Kon- taktblech 38. Da jedoch in diesem Zustand der Halter 42 eine etwas geneigte Position einnimmt, liegt seine obere Kante, links in Fig. 3, in der Bewegungsbahn der Nase 58 des Schalthebels 18. Wenn man versucht, den Schalthebel 18 in die Schließstellung zu schwenken, stößt daher die Nase 58 oberhalb der Ausnehmung 60 am oberen Rand des Halters 42 an, so daß sich der Schalthebel 18 nicht weiter schwenken und somit die Kontaktbrücke 26 nicht in die Schließstellung bewegen läßt. Erst wenn der Sitz des Halters 42 korrigiert wurde, kann die Nase 58 wieder in die Ausnehmung 60 eintreten, so daß der Schalter sich schließen läßt. Fig. 3 shows the switch in a state in which the holder 42 has not been inserted correctly. In this case, the locking lug 52 does not engage behind the rib 54, but is supported unstably at the end of the rib 54. The electrode 48 of the fuse link 44 therefore forms a spark gap with the contact plate 38. However, since the holder 42 assumes a somewhat inclined position in this state, its upper edge, on the left in FIG. 3, lies in the path of movement of the nose 58 of the switching lever 18. If one tries to pivot the switching lever 18 into the closed position, the nose 58 abuts above the recess 60 at the upper edge of the holder 42, so that the switching lever 18 does not pivot further and thus the contact bridge 26 does not move into the closed position can move. Only when the seat of the holder 42 has been corrected can the nose 58 re-enter the recess 60 so that the switch can be closed.

Claims

PATENTANSPRÜCHE
1. Schalter mit einem Gehäuse (10), einem am Gehäuse gelagerten, zwischen einer Einschaltstellung und einer Ausschaltstellung schwenkbaren Schalthebel (18) und einer lösbar in das Gehäuse (10) einsetzbaren Sicherungseinheit (40), gekennzeichnet durch einen Sperrmechanismus (58,60) der die Position der Sicherungseinheit (40) abtastet und das Verschwenken des Schalthebels (18) in die Einschaltstellung verhindert, wenn die Sicherungseinheit (40) sich nicht in der korrekten Position befindet.1. Switch with a housing (10), a switch lever (18) mounted on the housing and pivotable between a switch-on position and a switch-off position, and a fuse unit (40) which can be detachably inserted into the housing (10), characterized by a locking mechanism (58, 60) which scans the position of the securing unit (40) and prevents the switching lever (18) from pivoting into the switched-on position when the securing unit (40) is not in the correct position.
2. Schalter nach Anspruch 1, dadurch gekennzeichnet, daß der Sperrmechanismus durch ineinandergreifende Nasen (58) und Ausnehmungen (60) am Schalthebel (18) und der Sicherungseinheit (40) gebildet wird.2. Switch according to claim 1, characterized in that the locking mechanism is formed by interlocking lugs (58) and recesses (60) on the shift lever (18) and the securing unit (40).
3. Schalter nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Sicherungseinheit (40) klemmend in dem Gehäuse (10) gehalten ist und an einem Ende mittelbar oder unmittelbar durch eine Feder (50) beaufschlagt wird und daß der Sperrmechanismus (58,60) an dem der Feder (50) entgegengesetzten Ende der Sicherungseinheit (40) angeordnet ist.3. Switch according to claim 1 or 2, characterized in that the fuse unit (40) is held clamped in the housing (10) and is acted upon directly or indirectly at one end by a spring (50) and in that the locking mechanism (58,60 ) is arranged on the end of the securing unit (40) opposite the spring (50).
4. Schalter nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Sicherungseinheit (40) in einer zur Schwenkachse des Schalthebels (18) etwa rechtwinkligen Orientierung im Gehäuse (10) gehalten ist, daß sich der Schalthebel (18) in der Einschaltstellung in einer über einem Ende der Sicherungseinheit (40) liegenden Position befindet und daß eine Nase (58) des Sperrmechanismus an einem starr mit dem Schalthebel (18) verbundenen Nocken (22) ausgebildet ist und an der Sicherungseinheit (40) anstößt, wenn diese nicht korrekt in ihrem Klemmsitz in dem Gehäuse gehalten ist.4. Switch according to claim 2 or 3, characterized in that the fuse unit (40) in an approximately perpendicular to the pivot axis of the shift lever (18) is held in the housing (10) that the shift lever (18) in the switch-on position in one is located above one end of the securing unit (40) and that a nose (58) of the locking mechanism is formed on a cam (22) rigidly connected to the shift lever (18) and abuts the securing unit (40) if it is not correctly in their clamp seat is held in the housing.
5. Schalter nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Sicherungseinheit (40) einen den eigentliche Sicherungeinsatz (44) aufnehmenden Halter (42) aufweist, der im Bereich eines dem Sperrmechanismus (58,60) benachbarten Endes mit einer Verriegelungsnase (52) an einer Rippe (54) des Gehäuses (10) einhakbar ist. 5. Switch according to one of the preceding claims, characterized in that the fuse unit (40) has an actual fuse insert (44) receiving holder (42) which in the region of an end adjacent to the locking mechanism (58, 60) with a locking lug (52 ) can be hooked onto a rib (54) of the housing (10).
6. Schalter nach Anspruch 5, dadurch gekennzeichnet, daß der Halter (42) eine Ausnehmung (60) aufweist, in die eine den Sperrmechanismus bildende Nase (58) des Schalthebels (18) in der Einschaltstellung eingreift.6. Switch according to claim 5, characterized in that the holder (42) has a recess (60) into which a nose forming the locking mechanism (58) of the switching lever (18) engages in the switched-on position.
7. Schalter nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß der Sicherungseinsatz (44) mit Elektroden (46,48) an ihren entgegengesetzten Enden versehen und klemmend zwischen Kontaktblechen (32,38) gehalten ist. 7. Switch according to claim 5 or 6, characterized in that the fuse link (44) with electrodes (46,48) is provided at their opposite ends and is held clamped between contact plates (32,38).
EP00977805A 1999-10-30 2000-10-30 Switch with fuse unit Expired - Lifetime EP1224677B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29919140U 1999-10-30
DE29919140U DE29919140U1 (en) 1999-10-30 1999-10-30 Switch with fuse unit
PCT/IB2000/001793 WO2001033592A1 (en) 1999-10-30 2000-10-30 Switch with fuse unit

Publications (2)

Publication Number Publication Date
EP1224677A1 true EP1224677A1 (en) 2002-07-24
EP1224677B1 EP1224677B1 (en) 2004-01-02

Family

ID=8080998

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00977805A Expired - Lifetime EP1224677B1 (en) 1999-10-30 2000-10-30 Switch with fuse unit

Country Status (15)

Country Link
EP (1) EP1224677B1 (en)
CN (1) CN1216389C (en)
AT (1) ATE257273T1 (en)
AU (1) AU1543601A (en)
CZ (1) CZ20021398A3 (en)
DE (2) DE29919140U1 (en)
DK (1) DK1224677T3 (en)
ES (1) ES2211645T3 (en)
HR (1) HRP20020374A2 (en)
HU (1) HUP0203858A2 (en)
IL (2) IL149239A0 (en)
PL (1) PL192475B1 (en)
SK (1) SK287388B6 (en)
WO (1) WO2001033592A1 (en)
YU (1) YU31802A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20013044U1 (en) 2000-07-28 2001-11-29 Eti Elektroelement D.D., Izlake Fuse switch disconnector
DE10054170C2 (en) * 2000-11-02 2003-04-17 Woehner Gmbh & Co Kg fuse strip
DE10054169B4 (en) * 2000-11-02 2005-04-21 Wöhner GmbH & Co. KG Elektrotechnische Systeme Cam connection for fuse strips
DE10247095B4 (en) * 2002-10-09 2004-08-19 Klaus Bruchmann Switch arrangement
US7474194B2 (en) * 2004-09-13 2009-01-06 Cooper Technologies Company Fusible switching disconnect modules and devices
DE102007008051B3 (en) * 2007-02-15 2008-06-19 Geyer Ag Electrical switching device, has current path, which comprises electrical input conductor, electrical intermediate conductor and electrical output conductor
SI22960A (en) 2009-01-13 2010-07-30 Eti Elektroelement D.D. Safety electrical switch with fusible cut-out

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Publication number Priority date Publication date Assignee Title
DK152157C (en) 1976-12-10 1988-06-20 Knudsen Nordisk Elect GROUP SWITCH
DE2722279C3 (en) 1977-05-17 1981-07-23 Christian Geyer GmbH & Co, 8500 Nürnberg Fuse switch
DE2946874A1 (en) 1979-11-21 1981-05-27 Christian Geyer GmbH & Co, 8500 Nürnberg Disconnector with thermal melt-type fuse - has fuse holder designed to prevent manipulation reducing contact pressure
SI9700256A (en) 1997-10-02 1999-06-30 Eti Elektroelement D.D. Electric device switch
PL183078B1 (en) 1997-12-04 2002-05-31 Legrand Fael Sp Z Oo Safety disconnect switch
DE29912859U1 (en) * 1999-07-22 1999-10-14 Bruchmann, Klaus, 96450 Coburg Switching system with combined switching and blocking device

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Title
See references of WO0133592A1 *

Also Published As

Publication number Publication date
AU1543601A (en) 2001-05-14
IL149239A (en) 2006-12-10
PL192475B1 (en) 2006-10-31
IL149239A0 (en) 2002-11-10
SK5592002A3 (en) 2002-10-08
DK1224677T3 (en) 2004-02-16
PL354603A1 (en) 2004-01-26
CN1216389C (en) 2005-08-24
HUP0203858A2 (en) 2003-03-28
ES2211645T3 (en) 2004-07-16
YU31802A (en) 2004-05-12
DE29919140U1 (en) 1999-12-30
CN1384969A (en) 2002-12-11
HRP20020374A2 (en) 2004-02-29
EP1224677B1 (en) 2004-01-02
WO2001033592A1 (en) 2001-05-10
CZ20021398A3 (en) 2002-08-14
SK287388B6 (en) 2010-08-09
DE50004945D1 (en) 2004-02-05
ATE257273T1 (en) 2004-01-15

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