EP1123553A1 - Switchgear with switching devices arranged in housings - Google Patents

Switchgear with switching devices arranged in housings

Info

Publication number
EP1123553A1
EP1123553A1 EP99957905A EP99957905A EP1123553A1 EP 1123553 A1 EP1123553 A1 EP 1123553A1 EP 99957905 A EP99957905 A EP 99957905A EP 99957905 A EP99957905 A EP 99957905A EP 1123553 A1 EP1123553 A1 EP 1123553A1
Authority
EP
European Patent Office
Prior art keywords
housings
switchgear
guide
longitudinal axis
free ends
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
EP99957905A
Other languages
German (de)
French (fr)
Other versions
EP1123553B1 (en
Inventor
Thomas Erk
Andreas Stelzer
Reinhard Zeuke
Hartmut SCHÖNTAG
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
Publication of EP1123553A1 publication Critical patent/EP1123553A1/en
Application granted granted Critical
Publication of EP1123553B1 publication Critical patent/EP1123553B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H2033/6667—Details concerning lever type driving rod arrangements

Definitions

  • the invention relates to switchgear with switchgears arranged in housings a, in particular with vacuum contactors, the contact pins of which can be deflected in a straight line, are controllable by a magnetic drive device and are guided axially and radially by means of concentrically arranged spherical cap guides.
  • Switchgear of the type defined are u. a. known from the publication "Siemens HG 11.21, 1997, 3TL6 vacuum contactors, page 3/3".
  • the axially movable contact pin has a spherical extension at its free end, which is mounted in a spherical cap guide within the radially deflectable integral rocker.
  • the movable contact pin is thus protected against the effects of transverse forces in the voltage range up to 12 kV.
  • the object on which the invention is based is to considerably improve the guidance and mounting of the movable contact bolts and also to protect them from transverse forces which occur in the voltage range up to 24 kV. According to the invention, this is characterized by features 1.1.
  • the housings are formed by pole shells lying opposite one another,
  • control arms each have a trapezoidal lever contour
  • pivot arms are equipped at the free ends in the broad area transversely to their longitudinal axis with outwardly extending guide pins which are rotatably mounted in guide recesses of the opposing pole shells,
  • the swivel arms are each with a at the free ends in the narrow area parallel to their longitudinal axis provided outwardly opening U-shaped pin bearings,
  • 1.6 in the pin bearing is one that can be deflected in a straight line
  • the pivot arms are each realized by a plastic injection molded part.
  • FIG. 1 showing the switching device in the installed state between the pole shells with a view of its side view
  • FIG. 2 the arrangement of the rotary link between the two
  • FIG. 1 shows the switching device VS - designed as a vacuum protection device - between the two pole shells PS1, PS2 (FIG. 2), the pole shell PS2 (FIG. 2) hiding the view being omitted in FIG. 1 for the sake of a better overview.
  • the upper and lower heat sinks KKo, Kku which are not part of the invention, and their upper and lower contact connection Kao, Kau are only indicated.
  • the switching device VS contains the contact pin KB, which experiences an axial contact deflection KA in the direction of the arrow through the drive pin AB of a drive device, not shown, in the switching state.
  • the contact pin and the drive pin AB are non-positively coupled to the rotary link DL via the guide pin FB in relation to the transverse forces acting on it.
  • the rotary link DL is rotatably mounted in the area of the guide webs - only the guide web FS of the first pole shell PS1 can be seen and, in the switching state, undergoes a radial handlebar rotation LR in the direction of the arrow.
  • FIG. 2 shows the two mirror-symmetrically arranged pole shells PS1, PS2, each of which is equipped with the guide web FS - only the guide web FS of the second pole shell PS2 is designated.
  • the mutually opposite guide webs FS each have the guide recess FA, in which the guide pins FZ of the trapezoidal rotary link DL are mounted.
  • the trapezoidal swivel arm DL contains the U-shaped pin bearing BL in the narrow end area
  • the longitudinal axis of the trapezoidal rotary link DL is arranged identically with the longitudinal axis of the indicated lower heat sink KKu and the rotary link DL below the lower heat sink KKu.

Abstract

The invention relates to switchgear with switching devices arranged in housings, especially vacuum circuit breakers whose contacts studs may be displaced in a straight line controlled by a magnetic drive unit and guided axially and radially by concentrically arranged cap guides. The housings are formed by opposite pole shells (PS1, PS2) and the cap guides consist of rotating rods (DL) mounted on one side. Said rotating rods (DL) have a trapezoidal lever contour and are fitted on their free ends with guide pins (FZ) extending outward in a wide area crosswise in relation to their longitudinal axis (LA) and are rotationally mounted in guide grooves (FA) of the opposite pole shells (PS1, PS2). The rotating rods (DL) are also fitted on their free ends with a U-shaped rod mount (BL) that opens outward in the narrow area parallel to their longitudinal axis (LA), in which a guide rod (FB) is mounted that engages in nonpositive fit with the contact rod (KB) that may be displaced in a straight line. Said switchgears can be used in power supply and distribution.

Description

Beschreibungdescription
Schaltanlagen mit in Gehäusen angeordneten SchaltgeratenSwitchgear with switchgear arranged in housings
Die Erfindung betrifft Schaltanlagen mit in Gehäusen a geordneten Schaltgeräten, insbesondere mit Vakuumschütze, deren gradlinig auslenkbare Kontaktbolzen von einer magnetischen Antriebseinrichtung steuerbar und mittels konzentrisch angeordneter Kalottenführungen axial und radial geführt sind.The invention relates to switchgear with switchgears arranged in housings a, in particular with vacuum contactors, the contact pins of which can be deflected in a straight line, are controllable by a magnetic drive device and are guided axially and radially by means of concentrically arranged spherical cap guides.
Schaltanlagen der eingangs definierten Art sind u. a. aus der Druckschrift „Siemens HG 11.21, 1997, Vakuumschütze 3TL6, Seite 3/3" bekannt.Switchgear of the type defined are u. a. known from the publication "Siemens HG 11.21, 1997, 3TL6 vacuum contactors, page 3/3".
Der axial bewegbare Kontaktbolzen weist dort an seinem freien Ende eine kugelförmige Erweiterung auf, die innerhalb der radial auslenkbaren Integralwippe in einer Kalottenführung gelagert ist. Der bewegbare Kontaktbolzen ist somit gegen das Einwirken von Querkräften im Spannungsbereich bis 12 kV geschützt. Die der Erfindung zugrunde liegende Aufgabe besteht darin, die Führung und Lagerung der bewegbaren Kontaktbolzen erheblich zu verbessern und auch vor Querkräften zu schützen, die im Spannungsbereich bis 24 kV auftreten. Erfindungsgemäß wird dies durch die Merkmale 1.1 die Gehäuse sind durch einander gegenüberliegende Polschalen gebildet,The axially movable contact pin has a spherical extension at its free end, which is mounted in a spherical cap guide within the radially deflectable integral rocker. The movable contact pin is thus protected against the effects of transverse forces in the voltage range up to 12 kV. The object on which the invention is based is to considerably improve the guidance and mounting of the movable contact bolts and also to protect them from transverse forces which occur in the voltage range up to 24 kV. According to the invention, this is characterized by features 1.1. The housings are formed by pole shells lying opposite one another,
1.2 die Kalottenführungen sind jeweils durch einseitig gelagerte Drehlenker realisiert,1.2 the spherical cap guides are each realized by rotating links on one side,
1.3 die Drehlenker weisen jeweils eine trapezförmige Hebel- kontur auf,1.3 the control arms each have a trapezoidal lever contour,
1.4 die Drehlenker sind an den freien Enden im breiten Bereich quer zu ihrer Längsachse mit sich nach außen erstreckende Führungszapfen ausgestattet, die in Führungs- ausnehmungen der einander gegenüberliegenden Polschalen drehgelagert sind,1.4 the pivot arms are equipped at the free ends in the broad area transversely to their longitudinal axis with outwardly extending guide pins which are rotatably mounted in guide recesses of the opposing pole shells,
1.5 die Drehlenker sind an den freien Enden im schmalen Bereich parallel zu ihrer Längsachse jeweils mit einem sich nach außen öffnenden U-förmigen Bolzenlager versehen,1.5 the swivel arms are each with a at the free ends in the narrow area parallel to their longitudinal axis provided outwardly opening U-shaped pin bearings,
1.6 im Bolzenlager ist ein in den gradlinig auslenkbaren1.6 in the pin bearing is one that can be deflected in a straight line
Kontaktbolzen kraftschlüssig angreifender Führungsbolzen (FB) gelagert, erreicht.Contact pin frictionally engaged guide pin ( FB) mounted, reached.
Mit den Einsatz von Drehlenkern, die innerhalb der gegenüberliegenden Polschalen drehgelagert sind, ist die Führung und Lagerung der Kontaktbolzen völlig getrennt von deren axialer Kontaktauslenkung. Auftretende Querkräfte werden vollständig von den Drehlenkern aufgenommen und können somit nicht mehr auf den Antrieb selbst ein wirken. Dadurch ist die Zahl der Unterbrechungsschaltungen und damit die Lebensdauer der Schaltgeräte auch im Spannungsbereich von 24 kV wesentlich erhöht.With the use of swivel arms, which are rotatably mounted within the opposite pole shells, the guidance and mounting of the contact bolts is completely separate from their axial contact deflection. Any transverse forces that occur are completely absorbed by the rotary links and can therefore no longer act on the drive itself. As a result, the number of interruptions and thus the service life of the switchgear is significantly increased even in the voltage range of 24 kV.
Gemäß einer vorteilhaften Ausgestaltung der Erfindung ist das Merkmal 2.1 die Drehlenker sind jeweils durch ein Kunstoff-Spritzgußteil realisiert, vorgesehen.According to an advantageous embodiment of the invention, feature 2.1 is provided, the pivot arms are each realized by a plastic injection molded part.
Damit sind sowohl die Bedingungen für ausreichende Spannungsfestigkeit als auch die der mechanischen Beanspruchung gegen- über der bekannten Lösung kostengünstig erfülltThis means that both the conditions for sufficient dielectric strength and the mechanical stress compared to the known solution are met at low cost
Die Erfindung wird durch ein in zwei Figuren dargestelltes Ausführungsbeispiel näher erläutert, wobei die Figur 1 das Schaltgerät im Einbauzustand zwischen den Pol- schalen mit Blick auf seine Seitenansicht zeigt und die Figur 2 die Anordnung des Drehlenkers zwischen den beidenThe invention is explained in more detail by means of an exemplary embodiment shown in two figures, FIG. 1 showing the switching device in the installed state between the pole shells with a view of its side view, and FIG. 2 the arrangement of the rotary link between the two
Polschalen unterhalb des unteren Kühlkörpers erkennen läßt.Polar shells can be seen below the lower heat sink.
Die Figur 1 zeigt das Schaltgerät VS - ausgeführt als Vakuumschützt - zwischen den beiden Polschalen PS1,PS2 (Fig. 2), wobei der besseren Übersicht wegen die die Ansicht verdeckende Polschale PS2 (Fig. 2) in der Figur 1 weggelassen ist. Außerdem sind der Vollständigkeit halber der jedoch nicht zur Erfindung gehörende obere und untere Kühlkörper KKo, Kku so- wie deren oberer und unterer Kontaktanschluß Kao, Kau nur angedeutet dargestellt.1 shows the switching device VS - designed as a vacuum protection device - between the two pole shells PS1, PS2 (FIG. 2), the pole shell PS2 (FIG. 2) hiding the view being omitted in FIG. 1 for the sake of a better overview. In addition, for the sake of completeness, the upper and lower heat sinks KKo, Kku, which are not part of the invention, and their upper and lower contact connection Kao, Kau are only indicated.
Das Schaltgerät VS enthält den Kontaktbolzen KB, der durch den Antriebsbolzen AB einer nicht dargestellten Antriebseinrichtung im Schaltzustand eine axiale Kontaktauslenkung KA in Pfeilrichtung erfährt. Der Kontaktbolzen und der Antriebsbolzen AB sind mit dem Drehlenker DL über den Führungsbolzen FB in Bezug auf einwirkende Querkräfte kraftschlüssig gekoppelt. Der Drehlenker DL ist im Bereich der Führungsstege - erkennbar ist lediglich der Führungssteg FS der ersten Polschale PS1 - drehbar gelagert und erfährt im Schaltzustand eine radiale Lenkerdrehung LR in Pfeilrichtung.The switching device VS contains the contact pin KB, which experiences an axial contact deflection KA in the direction of the arrow through the drive pin AB of a drive device, not shown, in the switching state. The contact pin and the drive pin AB are non-positively coupled to the rotary link DL via the guide pin FB in relation to the transverse forces acting on it. The rotary link DL is rotatably mounted in the area of the guide webs - only the guide web FS of the first pole shell PS1 can be seen and, in the switching state, undergoes a radial handlebar rotation LR in the direction of the arrow.
Die Figur 2 zeigt die beiden spiegelsymmetrisch angeordneten Polschalen PS1, PS2, die jeweils mit dem Führungssteg FS - bezeichnet ist nur der Führungssteg FS der zweiten Polschale PS2 - ausgestattet sind. Die einander gegenüberliegenden Führungsstege FS weisen jeweils die Führungsausnehmung FA auf, in die die Führungszapfen FZ des trapezförmigen Drehlenkers DL gelagert sind. Der trapezförmige Drehlenker DL enthält im schmalen Endbereich das U-förmige Bolzenlager BL, das denFIG. 2 shows the two mirror-symmetrically arranged pole shells PS1, PS2, each of which is equipped with the guide web FS - only the guide web FS of the second pole shell PS2 is designated. The mutually opposite guide webs FS each have the guide recess FA, in which the guide pins FZ of the trapezoidal rotary link DL are mounted. The trapezoidal swivel arm DL contains the U-shaped pin bearing BL in the narrow end area
Führungsbolzen FB aufnimmt. Weiterhin ist erkennbar, daß die Längsachse des trapezförmrigen Drehlenkers DL identisch mit der Längsachse des angedeutet dargestellten unteren Kühlkörpers KKu und der Drehlenker DL unterhalb des unteren Kühlkör- pers KKu angeordnet ist.FB guide pin. Furthermore, it can be seen that the longitudinal axis of the trapezoidal rotary link DL is arranged identically with the longitudinal axis of the indicated lower heat sink KKu and the rotary link DL below the lower heat sink KKu.
Durch die seitliche Führung und Zentrierung des Kontaktbolzens KB - sichtbar in Figur 1 - ist der gegenüberliegende untere Kontaktanschluß KAu für den elektrischen Leitungsanschluß frei zugänglich. Due to the lateral guidance and centering of the contact pin KB - visible in FIG. 1 - the opposite lower contact connection KAu is freely accessible for the electrical line connection.

Claims

PatentansprücheSchaltanlagen mit in Gehäusen angeordneten Schaltgeräten, insbesondere mit Vakuumschütze, deren gradlinig auslenkbare Kontaktbolzen von einer magnetischen Antriebseinrichtung steuerbar und mittels konzentrisch angeordneter Kalottenführungen axial und radial geführt sind, g e k e n n z e i c h n e t d u r c h die Merkmale Switchgear assemblies with switching devices arranged in housings, in particular with vacuum contactors, the contact pins of which can be deflected in a straight line, can be controlled by a magnetic drive device and are guided axially and radially by means of concentrically arranged spherical cap guides, characterized by the features
1.1 die Gehäuse sind durch einander gegenüberliegende Pol- schalen (PS1, PS2) gebildet,1.1 the housings are formed by opposing pole shells (PS1, PS2),
1.2 die Kalottenführungen sind jeweils durch einseitig gelagerte Drehlenker (DL) realisiert,1.2 the spherical cap guides are each realized by rotating links (DL) on one side,
1.3 die Drehlenker (DL) weisen jeweils eine trapezförmige Hebelkontur auf, 1.4 die Drehlenker (DL) sind an den freien Enden im breiten Bereich quer zu ihrer Längsachse (LA) mit sich nach außen erstreckende Führungszapfen (FZ) ausgestattet, die in Führungsausneh ungen (FA) der einander gegenüberliegenden Polschalen (PS1, PS2) drehgelagert sind, 1.5 die Drehlenker (DL) sind an den freien Enden im schmalen Bereich parallel zu ihrer Längachse (LA) jeweils mit einem sich nach außen öffnenden U-förmigen Bolzenlager (BL) versehen, 1.6 im Bolzenlager (BL) ist ein in den gradlinig auslenkba- ren Kontaktbolzen (KB) kraftschlüssig angreifender Führungsbolzen (FB) gelagert.1.3 the swivel arms (DL) each have a trapezoidal lever contour, 1.4 the swivel arms (DL) are equipped at the free ends in the broad area transversely to their longitudinal axis (LA) with outwardly extending guide pins (FZ), which are made in guide recesses ( FA) of the opposing pole shells (PS1, PS2) are rotatably mounted, 1.5 the pivot arms (DL) are provided at the free ends in the narrow area parallel to their longitudinal axis (LA) each with an outwardly opening U-shaped pin bearing (BL) , 1.6 in the pin bearing (BL) there is a guide pin (FB) which engages non-positively in the straight-line deflectable contact pin (KB).
2. Schaltanlagen mit in Gehäusen angeordneten Schaltgeräten nach Patentanspruch 1, g e k e n n z e i c h n e t d u r c h das Merkmal2. Switchgear with switchgear arranged in housings according to claim 1, g e k e n n z e i c h n e t d u r c h the feature
2.1 die Drehlenker (DL) sind jeweils durch ein Kunstoff- Spritzgußteil realisiert. 2.1 the swivel arms (DL) are each realized by a plastic injection molded part.
EP99957905A 1998-10-23 1999-10-12 Switchgear with switching devices arranged in housings Expired - Lifetime EP1123553B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19850202A DE19850202A1 (en) 1998-10-23 1998-10-23 Electrical switchgear with individual vacuum switch housings
DE19850202 1998-10-23
PCT/DE1999/003308 WO2000025333A1 (en) 1998-10-23 1999-10-12 Switchgear with switching devices arranged in housings

Publications (2)

Publication Number Publication Date
EP1123553A1 true EP1123553A1 (en) 2001-08-16
EP1123553B1 EP1123553B1 (en) 2002-04-03

Family

ID=7886239

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99957905A Expired - Lifetime EP1123553B1 (en) 1998-10-23 1999-10-12 Switchgear with switching devices arranged in housings

Country Status (5)

Country Link
US (1) US6444938B1 (en)
EP (1) EP1123553B1 (en)
AU (1) AU752489B2 (en)
DE (2) DE19850202A1 (en)
WO (1) WO2000025333A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19959207C2 (en) 1999-12-08 2001-10-18 Siemens Ag Vacuum contactor with sliding guide element
DE10056646C1 (en) * 2000-11-09 2002-03-28 Siemens Ag Receiving device used for switching tubes of power switches, comprises a shell-like insulating housing comprising thin wall insulating struts, thick wall struts and a support provided in the back wall region

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2227617B1 (en) * 1973-04-30 1979-03-09 Siemens Ag
DE3544972A1 (en) * 1985-12-19 1987-06-25 Calor Emag Elektrizitaets Ag Switch pole arrangement
US4855546A (en) * 1987-03-17 1989-08-08 Leisch Lee J Vacuum operated circuit breaker
DE4133091C2 (en) * 1991-09-30 1995-06-01 Siemens Ag Vacuum switch with a drive device and a pole drive unit
DE4226772A1 (en) * 1992-08-13 1994-02-17 Licentia Gmbh Vacuum valve module - has switch shutter as connector member between magnet drive and movable switch of vacuum tube.
FR2735899B1 (en) 1995-06-22 1997-08-01 Gec Alsthom T & D Sa SELF-DISCONNECTOR SWITCH

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0025333A1 *

Also Published As

Publication number Publication date
AU752489B2 (en) 2002-09-19
DE59901154D1 (en) 2002-05-08
DE19850202A1 (en) 2000-04-27
EP1123553B1 (en) 2002-04-03
US6444938B1 (en) 2002-09-03
AU1547500A (en) 2000-05-15
WO2000025333A1 (en) 2000-05-04

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