EP1110229A1 - Electric installation device with shape-retaining axial support - Google Patents

Electric installation device with shape-retaining axial support

Info

Publication number
EP1110229A1
EP1110229A1 EP99941594A EP99941594A EP1110229A1 EP 1110229 A1 EP1110229 A1 EP 1110229A1 EP 99941594 A EP99941594 A EP 99941594A EP 99941594 A EP99941594 A EP 99941594A EP 1110229 A1 EP1110229 A1 EP 1110229A1
Authority
EP
European Patent Office
Prior art keywords
housing
installation device
axes
web
components
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
EP99941594A
Other languages
German (de)
French (fr)
Other versions
EP1110229B1 (en
EP1110229B9 (en
Inventor
Jens Oppel
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.)
AEG Niederspannungstechnik GmbH and Co KG
Original Assignee
AEG Niederspannungstechnik GmbH and Co KG
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 AEG Niederspannungstechnik GmbH and Co KG filed Critical AEG Niederspannungstechnik GmbH and Co KG
Publication of EP1110229A1 publication Critical patent/EP1110229A1/en
Publication of EP1110229B1 publication Critical patent/EP1110229B1/en
Application granted granted Critical
Publication of EP1110229B9 publication Critical patent/EP1110229B9/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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0214—Housing or casing lateral walls containing guiding grooves or special mounting facilities
    • 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

Definitions

  • the present invention relates to an installation device according to the preamble of claim 1.
  • circuit breakers circuit breakers
  • circuit breakers with standardized mounting sections corresponding to the shape of the top-hat rail and standardized electrical connections for use with so-called busbars, but with different tripping characteristics and nominal current strengths.
  • An installation device of this type is known from the prior art, which consists of an essentially rectangular, flat housing, on the narrow front of which a manually operable switch device is provided.
  • the narrow back is designed as a mounting section for attaching the housing to a top-hat rail.
  • the housing is generally made of a plastic material which is cast into two housing halves which are joined together to form a housing cavity and are connected to one another, for example, by means of rivets.
  • the inner sides of the housing halves are preformed in accordance with the individual switch components or components, which are accommodated in the housing cavity, partly stationary, partly movably.
  • rib-shaped or strip-shaped projections which, when the housing halves are joined, break up the housing cavity into a plurality of differently dimensioned cavity regions for receiving the switch components.
  • a number of fastening bases are provided, in each of which a blind hole is formed.
  • axles required for the rotatable mounting of switch components such as coupling parts, contacts etc. are individually pressed or glued.
  • the axes can change their relative position to one another, as a result of which the functionality of the circuit breaker can be impaired, for example, due to reduced mobility of the rotatable switch components or their misalignment.
  • This change in relative position is supported by external forces on the axles, particularly in the case of spring-loaded switch components.
  • the rotatable mechanical switch components which are mounted on the axles exert a force on the axles as a result of, for example, a spring preload which is introduced into the switch housing via the corresponding blind hole. If there is heating in the installation device, the plastic of the housing softens, so that the axes are displaced or pivoted in the direction of the force.
  • circuit breakers of this type have numerous axis groups, the switch components of which are biased against one another, i.e. which have to absorb opposing forces.
  • Another technical variant for the mounting of the rotatable switch components provides for the arrangement of so-called circuit board locks, in which a plurality are placed in a metal plate are drilled out of through holes in which the bearing axes are in the form of steel pins.
  • both variants have the common disadvantage that they are relatively expensive and complex.
  • each pin must be inserted and glued individually into the blind holes formed in the housing.
  • the material costs increase due to the arrangement of the metal plate, which is particularly noticeable in mass production.
  • the object of the invention is to provide an installation device of this type, the functionality of which is improved even under thermal and / or mechanical stress on its switch components, without increasing its production costs compared to a conventional switch.
  • the installation device has a plastic housing in which a number of device components are housed, which are movably mounted on axes fixed in the housing.
  • at least two axes are connected to one another by a web.
  • This web is designed as an external component to the housing.
  • the web shape according to the invention operates only a small additional outlay of material, which can be more than compensated for, in that when the device is assembled, the two interconnected axes are mounted simultaneously in a single step. This simplifies the assembly process of the axles and shortens the assembly time overall.
  • the two axes and the web form a U-shaped bracket, wherein according to claim 3, the U-shaped bracket is a correspondingly bent metal pin.
  • the installation of the U-shaped bracket according to the development according to claim 4 takes place in such a way that the axially interconnected axles support components under tension or compression, the axles being supported against one another in such a way that a reduced force is introduced into the housing.
  • the web runs along the partially expected opposite directions of force that act on the connected axes.
  • the design of the housing is also simplified since, as previously in the prior art, it is not necessary to provide a number of blind bores corresponding to the number of axes, but a reduced number of grooves into which the web of the U- shaped Bugeis used and pressed or glued therein.
  • Fig. 1 shows the perspective view of a housing half of a circuit breaker with two dimensionally stable axle bearings according to the invention in the form of two U-shaped brackets and
  • Fig. 2 shows the arrangement of the switch components, which are mounted on the axes of the two U-shaped Bugei.
  • the housing of a circuit breaker consists of two housing halves, which are cast or pressed from a plastic material and which are screwed together to form a housing cavity.
  • the perspective view in FIG. 1 shows the inside of one of the housing halves 1. Accordingly, the housing cavity is divided into several areas by strip-shaped partitions 2, which are formed in one piece on the housing halves 1. These partitions 2 are adapted to the shape and function of the switch components which are to be accommodated in the individual cavity areas. 1 also shows two slot-like grooves 3, 4, which are formed in pedestal-shaped bases 5, 6 on the inside of one housing half 1. U-shaped 7, 8 brackets are inserted in the grooves 3, 4, and pressed and / or glued therein.
  • Each U-shaped bracket 7, 8 consists of a web 9, 10, each having two legs 11, 12; 13, 14 connect in one piece, which form axes for the pivotable mounting of switch components.
  • the U-shaped brackets n , 8 are made of brass tall pencils that are bent to the described shape.
  • the U-shaped brackets 7, 8 can also be formed as stamped parts or can be composed of several individual parts, for example by soldering or welding.
  • the depth of groove j Eder 3, 4 in the housing 1 is selected so that in the inserted state of the U-shaped bracket 7, 8, the end portions of the stegsei- term Bugelschenkel 11, 12; 13, 14 are recessed over a certain length m the grooves 3, 4, so that lateral forces on the bow legs 11, 12; 13, 14 can be received perpendicular to the web direction of the groove walls.
  • the pedestal-shaped bases 5, 6, in which the grooves 3, 4 are recessed are connected by ribs 15 to one another and to the rare walls of the housing half 1 shown, which are likewise formed in one piece on the inside of the housing half 1. These ribs 15 serve to additionally stiffen the pedestal-shaped bases 5, 6.
  • FIG. 2 shows the switch components from a large number of further circuit breaker-specific components (not shown further) which are mounted on the axles which are formed by the two U-shaped brackets 7, 8 or their legs.
  • An actuating lever element 16 (toggle for short) is rotatably mounted on the axis 11 of the bow 7 arranged in the middle section of the housing, consisting of a lever 17 protruding from the housing and a thick-walled cylinder 18 which at the same time acts as the hub for bearing on the Axis 11 forms.
  • an engaging component 19 is rotatably mounted in the cylinder wall, which is biased by a spring 20 in the direction of rotation of the cylinder (to the left according to FIG. 2).
  • the spring 20 is hooked at its free end to a pin 21 which is formed in one piece with the housing half 1.
  • the spring 20 exerts a force on the engaging component 19 in the direction of rotation about its mounting on the toggle 16.
  • the free end of the engagement component 19 (right end according to FIG. 2) forms a pin which protrudes rearward perpendicularly to the image plane according to FIG. 2 and can be snapped into a notch 22 of a contact finger 23.
  • This contact finger 23 is in turn mounted on an inner axis 14 of the other bracket 8 on the right-hand side according to FIG. 2 and is biased by a spring 25 in a direction in which the contact finger 23 is out of engagement with a stationary conductor contact 24.
  • the spring 25 shown is hooked at its free end to the other axis 13 of the same bracket 10 on the edge of the housing.
  • a release lever 26 in the form of a rocker is mounted on the inner axis 12 of the bracket 9 arranged in the central section, one lever leg of which can be brought into engagement with the pin of the engagement component 19 in order to press it out of the notch 22 of the contact finger 23 and the other Lever arm can be brought into engagement with a bimetallic element (not shown) for pivoting the release lever 26.
  • FIG. 2 shows the circuit breaker according to the embodiment in a switch position in which a line contact is closed.
  • the toggle 16 In this position, the toggle 16 is in a position which is turned to the left in accordance with FIG. 2, in which the engaging component 19 is pivoted to the right with respect to the axis of rotation 11 of the toggle 16 and thus the spring 20 acting on the engaging component 19 is tensioned.
  • the pin of the engaging component 19 is in the notch 22 of the contact finger 23 engages and presses it against the stationary conductor contact 24, the spiral spring 25 shown being tensioned to pretension the contact finger 23.
  • the release lever 26 is not in contact with the engagement element 19 in this switching position.
  • the bimetallic element is electrically connected to the contact finger 23 via a cable (also not shown), so that in the switching position according to FIG. 2, electrical current via the bimetallic element, the cable and the contact 23 to the stationary conductor contact 24 is transmitted.
  • the bimetal element heats up and bends in such a way that it comes into engagement with the release lever 26 in order to pivot it.
  • the release lever 26 comes into contact with the engaging component 19 and presses its pin out of the notch 22 of the contact finger 23.
  • the contact finger 23 is pivoted by the spring preload, whereby the contact between the contact finger 23 and the stationary conductor contact 24 is interrupted.
  • the arrangement of the Bugeis 8 on the right-hand side according to FIG. 2 is chosen such that a part of the spring forces which act on the axis 13 of the Bugeis 8 on the edge of the housing are transmitted via the web 10 to the other, inner axis 14, to which the pulling force is transmitted e of the coil spring 25 act on the contact finger 23. Since components of these forces are oriented opposite to one another, they are eliminated and are therefore no longer introduced into the plastic housing 1. Other, not mutually eliminating force components are distributed at least on both axes 13, 14 and introduced into the housing 1 via these axes 13, 14 and the web 10. In this way, the force application area in the housing 1 increases compared to, for example a single pin as is known in the art.
  • the U-shaped bracket 8 is used in particular as an axis for those components which are exposed to thermal loads and which thus introduce heat into the housing via the axes.
  • the area proportion via which heat can be released into the housing 1 naturally also increases.
  • An increased heat emission consequently increases the cooling effect and reduces local temperature peaks, which can soften the plastic material of the housing 1.
  • the housing 1 retains the ability to absorb forces without plastic deformation even during operation.
  • the bracket 7 is thermally and less forceful. It is only installed to reduce assembly costs.
  • the particularly high thermal load on the bracket 8 results from the fact that the contact finger 23 arranged thereon is connected metallically to the bimetal element via a stranded wire and thus receives the heat of the bimetal element directly.
  • the entire contact mechanism attached to the bracket 8 can be preassembled.
  • the installation costs can also be reduced further in this way.

Landscapes

  • Breakers (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Motor Or Generator Frames (AREA)
  • Replacement Of Web Rolls (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Sliding-Contact Bearings (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)

Abstract

The present invention relates to an electric installation device, such as an automatic switch, that comprises a housing made of a plastic material. The housing contains a number of constituent members which are mounted, so as to be capable of movement, on steel rods attached in said housing and used as pivots. According to the present embodiment, two of said pivots are constantly interconnected by a force connection using a crossbar located outside the housing so as to define preferably an integral U-shape bridge, whereby outside forces are directly transferred from one pivot to the other without being applied to the housing.

Description

Beschreibung INETAI-LATIO SGERÄΓ MIT FOFMSΓABILER AO SΓΛGERUNG Description INETAI-LATIO SGERÄΓ WITH FOFMSΓABILER AO SÜGERUNG
Die vorliegende Erfindung betrifft ein Installationsgerät gemäß dem Oberbegriff des Anspruchs 1.The present invention relates to an installation device according to the preamble of claim 1.
Installationsgeräte dieser Gattung zur Montage an Hutschienen sind im allgemeinen Sicherungsautomaten bzw. Leitungsschutzschalter (nachfolgend kurz als LS-Schalter bezeichnet) mit standardisierten Montageabschnitten entsprechend der Form der Hutschiene und genormten elektrischen Anschlüssen zur Verwendung für sogenannte Sammelschienen, jedoch mit unterschiedlichen Auslösecharakteristiken und Nennstromstärken.Installation devices of this type for mounting on top-hat rails are generally circuit breakers or circuit breakers (hereinafter referred to as circuit breakers) with standardized mounting sections corresponding to the shape of the top-hat rail and standardized electrical connections for use with so-called busbars, but with different tripping characteristics and nominal current strengths.
Aus dem Stand der Technik ist ein Installationsgerät dieser Gattung bekannt, welches aus einem im wesentlichen rechteckigen, flach bauenden Gehäuse besteht, an dessen schmaler Vorderseite eine manuell betätigbare Schaltereinrichtung vorgesehen ist. Die schmale Rückseite ist als Montageabschnitt zur Befestigung des Gehäuses an einer Hutschiene ausgebildet. Das Gehäuse ist in der Regel aus Isolationsgründen aus einem Kunst- stoffmaterial gefertigt, welches zu zwei Gehäusehälften gegossen ist, die unter Ausbildung eines Gehäusehohlraums zusammengefügt und beispielsweise mittels Nieten miteinander verbunden sind. Die Innenseiten der Gehäusehälften sind dabei entsprechend der einzelnen Schalterbauteile oder Komponenten vorgeformt, die in dem Gehäusehohlraum teils ortsfest, teils beweglich untergebracht sind. Präziser ausgedrückt sind an den Innenseiten der zwei Gehäusehälften zum einen rippen- oder lei- stenförmige Vorsprünge angeordnet, welche beim Zusammenfügen der Gehäusehälften den Gehäusehohlraum in mehrere unterschiedlich dimensionierte Hohlraumbereiche zur Aufnahme der Schalterkomponenten zergliedern. Zum anderen sind eine Anzahl von Befestigungssockeln vorgesehen, in denen jeweils ein Sackloch ausgebildet ist. In diesen Sacklöchern sind zur drehbaren Lagerung von Schalterkomponenten wie Kupplungsteilen, Kontakten usw. benötigte Achsen einzeln verpreßt oder eingeklebt. Hierbei dienen einfache Stahlstifte als Achsen, auf denen die entsprechenden, drehbaren Schalterkomponenten gleitgelagert sind.An installation device of this type is known from the prior art, which consists of an essentially rectangular, flat housing, on the narrow front of which a manually operable switch device is provided. The narrow back is designed as a mounting section for attaching the housing to a top-hat rail. For insulation reasons, the housing is generally made of a plastic material which is cast into two housing halves which are joined together to form a housing cavity and are connected to one another, for example, by means of rivets. The inner sides of the housing halves are preformed in accordance with the individual switch components or components, which are accommodated in the housing cavity, partly stationary, partly movably. To put it more precisely, on the inside of the two housing halves there are on the one hand rib-shaped or strip-shaped projections which, when the housing halves are joined, break up the housing cavity into a plurality of differently dimensioned cavity regions for receiving the switch components. On the other hand, a number of fastening bases are provided, in each of which a blind hole is formed. In these blind holes, axles required for the rotatable mounting of switch components such as coupling parts, contacts etc. are individually pressed or glued. Serve here simple steel pins as axes, on which the corresponding, rotatable switch components are mounted.
Es hat sich nunmehr gezeigt, daß sich bei dieser Variante der Befestigung der Achsen das Problem einer geringen mechanischen und/oder thermischen Belastbarkeit und Festigkeit der Achslagerungen ergibt. LS-Schalter bzw. deren Komponenten erhitzen sich teilweise im Betrieb, wobei die Warme über die Metallstifte in das Gehäuse abgeleitet wird. Kunststoff hat nicht nur die Eigenschaft eines ausgezeichneten elektrischen Isolators sondern auch eines schlechten Wärmeleiters. D.h. Warme innerhalb des Gehäuses wird nur mangelhaft nach außen abgegeben, wodurch sich insbesondere im Bereich der Achsbefestigungen solche Temperaturspitzen im Gehäuse ergeben können, die ein Erweichen des Kunststoffmaterials bewirken. In diesem Zustand können die Achsen ihre Relativlage zueinander verandern, wodurch die Funktionsfähigkeit des LS-Schalters beispielsweise aufgrund verringerter Beweglichkeit der drehbaren Schalterkomponenten oder deren Deiustierung beeinträchtigt werden kann. Unterstutzt wird diese Relativlageveranderung durch äußere Kräfte auf die Achsen insbesondere bei federvorgespannten Schalterkomponenten. Über die drehbaren mechanischen Schalterkomponenten, welche an den Achsen gelagert sind, wird nämlich auf die Achsen eine Kraft in Folge beispielsweise einer Federvorspannung ausgeübt, die über das entsprechende Sackloch in das Schaltergehause eingeleitet wird. Kommt es in dem Installationsgerat nun zu einer Erwärmung, weicht der Kunststoff des Gehäuses auf, so daß die Achsen in Richtung der Kraft verschoben oder verschwenkt werden. Dabei ist zu bemerken, daß LS-Schalter dieser Gattung zahlreiche Achsengruppen aufweist, deren Schalterkomponenten gegeneinander vorgespannt sind, d.h. die entgegengesetzt ausgerichtete Kräfte aufnehmen müssen.It has now been shown that with this variant of the fastening of the axles there is the problem of low mechanical and / or thermal resilience and strength of the axle bearings. Circuit breakers or their components heat up in part during operation, with the heat being dissipated into the housing via the metal pins. Plastic not only has the property of an excellent electrical insulator but also a poor heat conductor. That Heat inside the housing is only poorly released to the outside, which can result in temperature peaks in the housing, particularly in the area of the axle fastenings, which cause the plastic material to soften. In this state, the axes can change their relative position to one another, as a result of which the functionality of the circuit breaker can be impaired, for example, due to reduced mobility of the rotatable switch components or their misalignment. This change in relative position is supported by external forces on the axles, particularly in the case of spring-loaded switch components. The rotatable mechanical switch components which are mounted on the axles exert a force on the axles as a result of, for example, a spring preload which is introduced into the switch housing via the corresponding blind hole. If there is heating in the installation device, the plastic of the housing softens, so that the axes are displaced or pivoted in the direction of the force. It should be noted that circuit breakers of this type have numerous axis groups, the switch components of which are biased against one another, i.e. which have to absorb opposing forces.
Eine weitere technische Variante für die Lagerung der drehbaren Schalterkomponenten sieht die Anordnung von sogenannten Platinenschlossern vor, bei denen in eine Metallplatte eine Mehrzahl von Durchgangslöchern ausgebohrt sind, in denen die Lagerungsachsen in Form von Stahlstiften stecken.Another technical variant for the mounting of the rotatable switch components provides for the arrangement of so-called circuit board locks, in which a plurality are placed in a metal plate are drilled out of through holes in which the bearing axes are in the form of steel pins.
Beide Varianten haben jedoch den gemeinsamen Nachteil, daß sie relativ teuer und aufwendig sind. Bei der erst genannten Variante muß jeder Stift einzeln in die im Gehäuse ausgebildeten Sacklöcher eingesetzt und verklebt werden. Bei der zweit genannten Variante erhöhen sich die Materialkosten infolge der Anordnung der Metallplatte, was sich insbesondere bei einer Massenproduktion erheblich bemerkbar macht.However, both variants have the common disadvantage that they are relatively expensive and complex. In the variant mentioned first, each pin must be inserted and glued individually into the blind holes formed in the housing. In the second variant mentioned, the material costs increase due to the arrangement of the metal plate, which is particularly noticeable in mass production.
Angesichts dieser Problematik besteht die Aufgabe der Erfindung darin, ein Installationsgerät dieser Gattung zu schaffen, dessen Funktionsfähigkeit auch unter thermischer und/oder mechanischer Belastung seiner Schalterkomponenten verbessert wird, ohne daß sich dessen Herstellungskosten gegenüber einem herkömmlichen Schalter erhöhen.In view of these problems, the object of the invention is to provide an installation device of this type, the functionality of which is improved even under thermal and / or mechanical stress on its switch components, without increasing its production costs compared to a conventional switch.
Diese Aufgabe wird erfindungsgemäß durch ein Installationsgerät mit den im Patentanspruch 1 angegebenen Merkmalen gelöst.This object is achieved by an installation device with the features specified in claim 1.
Gemäß diesem Patentanspruch 1 hat das Installationsgerät ein Kunststoffgehäuse, in dem eine Anzahl von Gerätekomponenten untergebracht ist, die beweglich auf im Gehäuse befestigten Achsen lagern. Erfindungsgemäß sind zumindest zwei Achsen durch einen Steg miteinander verbunden. Dieser Steg ist dabei als ein zum Gehäuse externes Bauteil ausgebildet. Der Vorteil dieser Ausgestaltung besteht darin, daß Kräfte, welche auf die zwei Achsen in im wesentlichen entgegengesetzte Richtungen einwirken, von dem Steg als Druck- oder Zugkräfte aufgenommen werden, wodurch das Gehäuse selbst unbelastet bleibt. Andere Kräfte, deren Richtung nicht der Ausrichtung des Stegs folgen werden durch den Steg auf verbundenen Achsen verteilt, d.h. deren Einleitung in das Gehäuse erfolgt über die zumindest zwei Achsen und den dazwischen angeordneten Steg, wodurch die Belastung pro Flächeneinheit erheblich verringert bzw. die Kraftangriffsfläche auf das Gehäuse erhöht werden kann. Eine Veränderung der ursprünglichen Relativposition der Achsen aufgrund thermischer und mechanischer Belastung wird somit wirkungsvoll verhindert. Auch das Gehäuse wird geringeren thermischen Belastungsspitzen ausgesetzt, da die Wärmeenergie aufgrund des Stegs und die damit vergrößerte Gesamtfläche der Achsen-Stegbaugruppe besser verteilt und abgeleitet werden kann.According to this claim 1, the installation device has a plastic housing in which a number of device components are housed, which are movably mounted on axes fixed in the housing. According to the invention, at least two axes are connected to one another by a web. This web is designed as an external component to the housing. The advantage of this configuration is that forces which act on the two axes in essentially opposite directions are absorbed by the web as compressive or tensile forces, as a result of which the housing itself remains unloaded. Other forces, the direction of which does not follow the alignment of the web, are distributed by the web to connected axes, ie their introduction into the housing takes place via the at least two axes and the web arranged between them, as a result of which the load per unit area is considerably reduced or the force application surface is increased the housing can be increased. A change in The original relative position of the axes due to thermal and mechanical loads is effectively prevented. The housing is also exposed to lower thermal stress peaks, since the thermal energy can be better distributed and dissipated due to the web and the thus increased total area of the axle web assembly.
Darüber hinaus wird durch die erfindungsgemäße Stegform ein nur geringer Mehraufwand an Material betrieben, der mehr als nur kompensiert werden kann, dadurch, daß beim Zusammenbau des Geräts die zwei miteinander verbundenen Achsen in einem einzigen Schritt gleichzeitig montiert werden. Dies erleichtert den Montagevorgang der Achsen und verkürzt insgesamt die Montagezeit.In addition, the web shape according to the invention operates only a small additional outlay of material, which can be more than compensated for, in that when the device is assembled, the two interconnected axes are mounted simultaneously in a single step. This simplifies the assembly process of the axles and shortens the assembly time overall.
Gemäß dem Anspruch 2 ist es ferner vorgesehen, daß die zwei Achsen und der Steg einen U-förmigen Bügel bilden, wobei nach Anspruch 3 der U-förmige Bügel ein entsprechend gebogener Metallstift ist. Dies hat den Vorteil, daß die Achsen auf besonders kostengünstige Weise, nämlich durch Biegen oder Stanzen aus einem preiswerten Material, beispielsweise einem Metalldraht einstückig hergestellt werden können.According to claim 2, it is further provided that the two axes and the web form a U-shaped bracket, wherein according to claim 3, the U-shaped bracket is a correspondingly bent metal pin. This has the advantage that the axles can be produced in one piece in a particularly cost-effective manner, namely by bending or punching from an inexpensive material, for example a metal wire.
In diesem Fall erfolgt der Einbau des U-förmigen Bügels gemäß der Weiterbildung nach Anspruch 4 derart, daß die durch den Steg miteinander verbundene Achsen unter Zug- oder Druckspannung gegeneinander stehende Komponenten lagern, wobei sich die Achsen über den Steg derart gegeneinander abstützen, daß eine verringerte Krafteinleitung in das Gehäuse erfolgt. In anderen Worten ausgedrückt, verläuft der Steg entlang der teilweise zu erwartenden gegensätzlichen Kraftrichtungen, die auf die verbundenen Achsen einwirken.In this case, the installation of the U-shaped bracket according to the development according to claim 4 takes place in such a way that the axially interconnected axles support components under tension or compression, the axles being supported against one another in such a way that a reduced force is introduced into the housing. In other words, the web runs along the partially expected opposite directions of force that act on the connected axes.
Auch die Ausbildung des Gehäuses vereinfacht sich, da wie bisher im Stand der Technik nicht eine Anzahl von Sackbohrungen entsprechend der Anzahl von Achsen sondern eine verringerte Anzahl von Nuten vorgesehen werden müssen, in die der Steg des U- formigen Bugeis eingesetzt und darin verpreßt oder verklebt wird.The design of the housing is also simplified since, as previously in the prior art, it is not necessary to provide a number of blind bores corresponding to the number of axes, but a reduced number of grooves into which the web of the U- shaped Bugeis used and pressed or glued therein.
Weitere vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteranspruche.Further advantageous embodiments of the invention are the subject of the dependent claims.
Die Erfindung w rd nachstehend anhand eines bevorzugten Ausfuh- rungsbeispiels unter Bezugnahme auf die begleitenden Zeichnungen naher erläutert.The invention is explained in more detail below on the basis of a preferred exemplary embodiment with reference to the accompanying drawings.
Fig. 1 zeigt die Perspektivenansicht einer Gehausehalfte eines LS-Schalters mit zwei erfindungsgemaßen formstabilen Achslagerungen m der Form zweier U-formiger Bügel undFig. 1 shows the perspective view of a housing half of a circuit breaker with two dimensionally stable axle bearings according to the invention in the form of two U-shaped brackets and
Fig. 2 zeigt die Anordnung der Schalterkomponenten, welche auf den Achsen der zwei U-formigen Bugei gelagert sind.Fig. 2 shows the arrangement of the switch components, which are mounted on the axes of the two U-shaped Bugei.
Gemäß der Fig. 1 besteht das Gehäuse eines LS-Schalters aus zwei Gehausehalften, die aus einem Kunststoffmaterial gegossen bzw. gepreßt sind und die unter Ausbildung eines Gehausehohlraums miteinander verschraubt sind. Die Perspektivenansicht in Fig. 1 zeigt dabei die Innenseite einer der Gehausehalften 1. Demzufolge ist der Gehausehohlraum in mehrere Bereiche durch leistenformige Trennwände 2 unterteilt, die einstuckig an den Gehausehalften 1 ausgebildet sind. Diese Trennwände 2 sind an die Form und Funktion der Schalterkomponenten angepaßt, welche in den einzelnen Hohlraumbereichen untergebracht werden sollen. Des weiteren zeigt die Fig. 1 zwei schlitzartige Nuten 3, 4, welche in podestformige Sockeln 5, 6 an der Innenseite der einen Gehausehalfte 1 ausgebildet sind. In den Nuten 3, 4 sind U- formige 7, 8 Bügel eingesetzt, und darin verpreßt und/oder verklebt.1, the housing of a circuit breaker consists of two housing halves, which are cast or pressed from a plastic material and which are screwed together to form a housing cavity. The perspective view in FIG. 1 shows the inside of one of the housing halves 1. Accordingly, the housing cavity is divided into several areas by strip-shaped partitions 2, which are formed in one piece on the housing halves 1. These partitions 2 are adapted to the shape and function of the switch components which are to be accommodated in the individual cavity areas. 1 also shows two slot-like grooves 3, 4, which are formed in pedestal-shaped bases 5, 6 on the inside of one housing half 1. U-shaped 7, 8 brackets are inserted in the grooves 3, 4, and pressed and / or glued therein.
Jeder U-formige Bügel 7, 8 besteht aus einem Steg 9, 10, die jeweils zwei Schenkel 11, 12; 13, 14 einstuckig miteinander verbinden, welche Achsen zur schwenkbaren Lagerung von Schalterkomponenten bilden. Die U-formigen Bügel n , 8 sind aus Me- tallstiften gefertigt, die zu der bescnriebenen Form gebogen sind. Alternativ hierzu können die U-formigen Bügel 7, 8 auch als Stanzteile ausgebildet oder aus mehreren Einzelteilen beispielsweise durch Loten oder Schweißen zusammengesetzt sein.Each U-shaped bracket 7, 8 consists of a web 9, 10, each having two legs 11, 12; 13, 14 connect in one piece, which form axes for the pivotable mounting of switch components. The U-shaped brackets n , 8 are made of brass tall pencils that are bent to the described shape. Alternatively, the U-shaped brackets 7, 8 can also be formed as stamped parts or can be composed of several individual parts, for example by soldering or welding.
Die Tiefe jeder Nut 3, 4 im Gehäuse 1 ist derart gewählt, daß im eingesetzten Zustand der U-formigen Bügel 7, 8 die stegsei- tigen Endabschnitte der Bugelschenkel 11, 12; 13, 14 über eine bestimmte Lange m den Nuten 3, 4 versenkt sind, so daß Seitenkräfte auf die Bugelschenkel 11, 12; 13, 14 senkrecht zur Stegrichtung von den Nutenwanden aufgenommen werden können. Zusätzlich sind die podestformigen Sockel 5, 6, in welchen die Nuten 3, 4 ausgenommen sind, durch Rippen 15 miteinander sowie mit den Seltenwanden der gezeigten Gehausehalfte 1 verbunden, welche ebenfalls einstuckig an der Innenseite der Gehausehalfte 1 ausgeformt sind. Diese Rippen 15 dienen zur zusätzlichen Versteifung der podestformigen Sockel 5, 6.The depth of groove j Eder 3, 4 in the housing 1 is selected so that in the inserted state of the U-shaped bracket 7, 8, the end portions of the stegsei- term Bugelschenkel 11, 12; 13, 14 are recessed over a certain length m the grooves 3, 4, so that lateral forces on the bow legs 11, 12; 13, 14 can be received perpendicular to the web direction of the groove walls. In addition, the pedestal-shaped bases 5, 6, in which the grooves 3, 4 are recessed, are connected by ribs 15 to one another and to the rare walls of the housing half 1 shown, which are likewise formed in one piece on the inside of the housing half 1. These ribs 15 serve to additionally stiffen the pedestal-shaped bases 5, 6.
In der Fig. 2 sind die Schalterkomponenten aus einer Vielzahl weiterer LS-Schalter spezifischer Komponenten (nicht weiter gezeigt) dargestellt, welche an den Achsen gelagert sind, die durch die zwei U-formigen Bügel 7, 8, bzw. deren Schenkel gebildet werden.2 shows the switch components from a large number of further circuit breaker-specific components (not shown further) which are mounted on the axles which are formed by the two U-shaped brackets 7, 8 or their legs.
An der einen gehauserandseitigen Achse 11 des im Mittenabschnitt des Gehäuses angeordneten Bugeis 7 ist ein Betatigungs- hebelelement 16 (kurz Knebel) drehbar gelagert, bestehend aus einem aus dem Gehäuse ragenden Hebel 17 und einem dickwandigen Zylinder 18, welcher gleichzeitig die Nabe zur Lagerung auf der Achse 11 bildet. In der Zylinderwand ist entsprechend eines Exzenters ein Eingriffsbauteil 19 drehbar gelagert, welches über eine Feder 20 in Rotationsrichtung des Zylinders (gemäß Fig. 2 nach links) vorgespannt ist. Die Feder 20 ist hierfür an ihrem freien Ende an einen Stift 21 eingehakt, der einstuckig mit der Gehausehalfte 1 ausgebildet ist. Gleicnzeitig übt die Feder 20 j e nach Lage des Knebels 16 auf aas Eingriffsbauteil 19 eine Kraft in Rotationsrichtung um dessen Lagerung am Knebel 16 aus. Das freie Ende des Eingriffsbauteils 19 (gemäß Fig. 2 rechtes Ende) bildet einen Zapfen, der senkrecht zur Bildebene gemäß Fig. 2 nach hinten vorsteht und in einer Kerbe 22 eines Kontaktfingers 23 einrastbar ist. Dieser Kontaktfinger 23 lagert wiederum auf einer inneren Achse 14 des anderen, gemäß Fig. 2 rechtsseitigen Bügels 8 und ist mittels einer Feder 25 in eine Richtung vorgespannt, in welcher der Kontaktfinger 23 außer Eingriff mit einem ortsfesten Leiterkontakt 24 ist. Die gezeigte Feder 25 ist dabei an ihrem freien Ende an der anderen, ge- häuserandseitigen Achse 13 des gleichen Bügels 10 eingehakt. Ferner ist ein Auslösehebel 26 in Form einer Wippe auf der inneren Achse 12 des im Mittenabschnitt angeordneten Bügels 9 gelagert, dessen einer Hebelschenkel mit dem Zapfen des Eingriffsbauteils 19 in Eingriff bringbar ist, um diesen aus der Kerbe 22 des Kontaktfingers 23 zu drücken und dessen anderer Hebelschenkel mit einem Bimetallelement (nicht gezeigt) für ein Verschwenken des Auslösehebels 26 in Eingriff bringbar ist.An actuating lever element 16 (toggle for short) is rotatably mounted on the axis 11 of the bow 7 arranged in the middle section of the housing, consisting of a lever 17 protruding from the housing and a thick-walled cylinder 18 which at the same time acts as the hub for bearing on the Axis 11 forms. In accordance with an eccentric, an engaging component 19 is rotatably mounted in the cylinder wall, which is biased by a spring 20 in the direction of rotation of the cylinder (to the left according to FIG. 2). For this purpose, the spring 20 is hooked at its free end to a pin 21 which is formed in one piece with the housing half 1. At the same time, depending on the position of the toggle 16, the spring 20 exerts a force on the engaging component 19 in the direction of rotation about its mounting on the toggle 16. The free end of the engagement component 19 (right end according to FIG. 2) forms a pin which protrudes rearward perpendicularly to the image plane according to FIG. 2 and can be snapped into a notch 22 of a contact finger 23. This contact finger 23 is in turn mounted on an inner axis 14 of the other bracket 8 on the right-hand side according to FIG. 2 and is biased by a spring 25 in a direction in which the contact finger 23 is out of engagement with a stationary conductor contact 24. The spring 25 shown is hooked at its free end to the other axis 13 of the same bracket 10 on the edge of the housing. Furthermore, a release lever 26 in the form of a rocker is mounted on the inner axis 12 of the bracket 9 arranged in the central section, one lever leg of which can be brought into engagement with the pin of the engagement component 19 in order to press it out of the notch 22 of the contact finger 23 and the other Lever arm can be brought into engagement with a bimetallic element (not shown) for pivoting the release lever 26.
Die exakte Funktionsweise des vorstehend nur abschnittsweise beschriebenen LS-Schalters ist aus dem Stand der Technik hinlänglich bekannt, so daß auf entsprechende Veröffentlichungen verwiesen werden kann. Lediglich zum Verständnis der Erfindung wird eine allgemeine Erläuterung des Bewegungsablaufs der drehbaren Schalterkomponenten sowie des Kräfteverlaufs zwischen den beschriebenen Achsen nachfolgend gegeben:The exact functioning of the circuit breaker described only in sections above is well known from the prior art, so that reference can be made to corresponding publications. A general explanation of the sequence of movements of the rotatable switch components and the course of forces between the described axes is given below only for understanding the invention:
In Fig. 2 wird der ausführungsgemäße LS-Schalter in einer Schaltstellung gezeigt, in welcher ein Leitungskontakt geschlossen ist.2 shows the circuit breaker according to the embodiment in a switch position in which a line contact is closed.
In dieser Stellung befindet sich der Knebel 16 in einer gemäß Fig. 2 nach links umgelegten Position, in der das Eingriffsbauteil 19 an bezüglich der Drehachse 11 des Knebels 16 nach rechts verschwenkt ist und somit die auf das Eingriffsbauteil 19 einwirkende Feder 20 gespannt ist. Der Zapfen des Eingriffsbauteils 19 ist dabei in die Kerbe 22 des Kontaktfingers 23 eingerastet und druckt diesen somit gegen den ortsfesten Leiterkontakt 24, wobei die gezeigte Spiralfeder 25 zur Vorspannung des Kontaktfingers 23 gespannt ist. Ferner ist in dieser Schaltstellung der Auslosehebel 26 nicht mit dem Eingriffselement 19 in Berührung.In this position, the toggle 16 is in a position which is turned to the left in accordance with FIG. 2, in which the engaging component 19 is pivoted to the right with respect to the axis of rotation 11 of the toggle 16 and thus the spring 20 acting on the engaging component 19 is tensioned. The pin of the engaging component 19 is in the notch 22 of the contact finger 23 engages and presses it against the stationary conductor contact 24, the spiral spring 25 shown being tensioned to pretension the contact finger 23. Furthermore, the release lever 26 is not in contact with the engagement element 19 in this switching position.
Das nicht gezeigte Bimetallelement ist elektrisch über ein Kabel (ebenfalls nicht gezeigt) mit dem Kontaktfinger 23 verbunden, so daß in der Schaltstellung gemäß der Fig. 2 e n elektrischer Strom über das Bimetallelement, das Kabel und den Kon- taktfmger 23 auf den ortsfesten Leiterkontakt 24 übertragen wird. Bei einer Überlastung erhitzt sich das Bimetallelement und verbiegt sich derart, daß es mit dem Auslosehebel 26 in Eingriff kommt, um diesen zu verschwenken. Hierdurch kommt der Auslosehebel 26 mit dem Eingriffsbauteil 19 in Berührung und druckt dessen Zapfen aus der Kerbe 22 des Kontaktfingers 23. In diesem Augenblick wird der Kontaktfinger 23 durch die Federvorspannung verschwenkt, wodurch der Kontakt zwischen dem Kontaktfinger 23 und dem ortsfesten Leiterkontakt 24 unterbrochen wird.The bimetallic element, not shown, is electrically connected to the contact finger 23 via a cable (also not shown), so that in the switching position according to FIG. 2, electrical current via the bimetallic element, the cable and the contact 23 to the stationary conductor contact 24 is transmitted. In the event of an overload, the bimetal element heats up and bends in such a way that it comes into engagement with the release lever 26 in order to pivot it. As a result, the release lever 26 comes into contact with the engaging component 19 and presses its pin out of the notch 22 of the contact finger 23. At this moment, the contact finger 23 is pivoted by the spring preload, whereby the contact between the contact finger 23 and the stationary conductor contact 24 is interrupted.
Um ein schnelles Auslosen des LS-Schalters zu gewährleisten ist es erforderlich, den Kontaktfinger 23 mit einer relativ großen Federkraft vorzuspannen. Die Anordnung des gemäß Fig. 2 rechtsseitigen Bugeis 8 ist dabei derart gewählt, daß ein Teil der Federkräfte, die auf die gehauserandseitige Achse 13 des Bugeis 8 einwirken, über den Steg 10 auf die andere, innere Achse 14 übertragen werden, auf welche die Ruckziehkraf e der Spiralfeder 25 über den Kontaktfinger 23 einwirken. Da Komponenten dieser Kräfte entgegengesetzt zueinander ausgerichtet sind, eliminieren sich diese und werden somit nicht mehr in das Kunststoffgehause 1 eingeleitet. Andere, nicht sich gegenseitig eliminierende Kraftkomponenten werden zumindest auf beide Achsen 13, 14 verteilt und über diese Achsen 13, 14 sowie den Steg 10 in das Gehause 1 eingeleitet. Auf diese Weise erhöht sich die Kraftangriffsflache im Gehause 1 gegenüber beispielsweise einem einzelnen Stift, wie dies aus dem Stand der Technik bekannt ist.In order to ensure a rapid triggering of the circuit breaker, it is necessary to pretension the contact finger 23 with a relatively large spring force. The arrangement of the Bugeis 8 on the right-hand side according to FIG. 2 is chosen such that a part of the spring forces which act on the axis 13 of the Bugeis 8 on the edge of the housing are transmitted via the web 10 to the other, inner axis 14, to which the pulling force is transmitted e of the coil spring 25 act on the contact finger 23. Since components of these forces are oriented opposite to one another, they are eliminated and are therefore no longer introduced into the plastic housing 1. Other, not mutually eliminating force components are distributed at least on both axes 13, 14 and introduced into the housing 1 via these axes 13, 14 and the web 10. In this way, the force application area in the housing 1 increases compared to, for example a single pin as is known in the art.
Ferner wird der U-förmige Bügel 8 insbesondere als Achse für jene Bauteile eingesetzt, welche thermischen Belastungen ausgesetzt sind und die somit Wärme über die Achsen in das Gehäuse einleiten. Aufgrund der erhöhten Kraftangriffsfläche erhöht sich natürlich auch der Flächenanteil, über den Wärme in das Gehäuse 1 abgegeben werden kann. Durch eine erhöhte Wärmeabgabe steigert sich folglich der Kühlungseffekt und verringern sich lokale Temperaturspitzen, welche eine Erweichung des Kunst- stoffmaterials des Gehäuses 1 bewirken können. Insofern bleibt dem Gehäuse 1 auch im Betrieb die Fähigkeit erhalten, Kräfte ohne plastische Deformationen aufzunehmen. Der Bügel 7 ist thermisch und kräftemäßig weniger belastet. Sein Einbau erfolgt lediglich zur Reduktion der Montagekosten. Die besonders hohe thermische Belastung des Bügels 8 ergibt sich daraus, daß der darauf angeordnete Kontaktfinger 23 metallisch über eine Litze mit dem Bimetallelement verbunden ist und somit direkt die Wärme des Bimetallelementes zugeführt bekommt.Furthermore, the U-shaped bracket 8 is used in particular as an axis for those components which are exposed to thermal loads and which thus introduce heat into the housing via the axes. As a result of the increased force application area, the area proportion via which heat can be released into the housing 1 naturally also increases. An increased heat emission consequently increases the cooling effect and reduces local temperature peaks, which can soften the plastic material of the housing 1. In this respect, the housing 1 retains the ability to absorb forces without plastic deformation even during operation. The bracket 7 is thermally and less forceful. It is only installed to reduce assembly costs. The particularly high thermal load on the bracket 8 results from the fact that the contact finger 23 arranged thereon is connected metallically to the bimetal element via a stranded wire and thus receives the heat of the bimetal element directly.
Des weiteren wird durch die Verwendung des Bügels 8 der gesamte an dem Bügel 8 angebrachte Kontaktmechanismus vormontierbar. Auch hierdurch können die Montagekosten weiter gesenkt werden. Furthermore, by using the bracket 8, the entire contact mechanism attached to the bracket 8 can be preassembled. The installation costs can also be reduced further in this way.

Claims

Patentansprüche claims
1. Installationsgerat mit einem Kunststoffgehause, in dem eine Anzahl von Geratekomponenten untergebracht ist, die beweglich auf im Gehause befestigten Achsen lagern, dadurch gekennzeichnet, daß zumindest zwei der Achsen durch einen gehausefremden Steg kraftschlussig miteinander verbunden sind.1. Installation device with a plastic housing, in which a number of device components are housed, which are movably supported on axles fastened in the housing, characterized in that at least two of the axes are non-positively connected to one another by a non-housed web.
2. Installationsgerat nach Anspruch 1, dadurch gekennzeichnet, daß die zwei Achsen und der Steg einen U-formigen Bügel bilden.2. Installation device according to claim 1, characterized in that the two axes and the web form a U-shaped bracket.
3. Installationsgerat nach Anspruch 2, dadurch gekennzeichnet, daß der U-förmige Bügel ein entsprechend gebogener Metallstift ist.3. Installation device according to claim 2, characterized in that the U-shaped bracket is a correspondingly bent metal pin.
4. Installationsgerat nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die durch den Steg miteinander verbundenen Achsen unter Zugoder Druckspannung gegeneinander stehende Geratekomponenten lagern, wobei sich die Achsen über den Steg derart gegeneinander abstützen, daß im wesentlichen keine Krafteinleitung in das Gehäuse erfolgt. 4. Installation device according to claim 2 or 3, characterized in that the axially interconnected axes under the tensile or compressive stress support opposing device components, the axles being supported against one another via the web in such a way that essentially no force is introduced into the housing.
5. Installationsgerat nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die durch den Steg miteinander verbundenen Achsen zur Lagerung einer drehbaren Geratekomponente an der einen Achse sowie zur Anlenkung einer Vorspanneinrichtung vorzugsweise einer Feder an der anderen Achse dienen, mittels der die Geratekomponente vorgespannt ist.5. Installation device according to claim 2 or 3, characterized in that the axes interconnected by the web for mounting a rotatable device component on one axis and for articulating a biasing device preferably serve a spring on the other axis, by means of which the device component is biased.
6. Installationsgerat nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Steg in einer schlitzförmigen Nut eingesetzt ist, welche im Gehäuse ausgeformt ist.6. Installation device according to one of the preceding claims, characterized in that the web is inserted in a slot-shaped groove which is formed in the housing.
7. Installationsgerat nach Anspruch 6, dadurch gekennzeichnet, daß die Nutentiefe derart gewählt ist, daß ein Endabschnitt der jeweils durch den Steg miteinander verbundenen Achsen in der Nut versenkt sind, so daß Seltenkraftkomponenten, welche auf die Achsen senkrecht zum Steg einwirken, von den Nutenwanden aufgenommen werden.7. Installation device according to claim 6, characterized in that the groove depth is selected such that an end portion of the axially interconnected axes are sunk in the groove, so that rare-force components which act on the axes perpendicular to the web, from the groove walls be included.
8. Installationsgerat nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das Installationsgerat ein Leitungsschutzschalter ist und die Gerätekomponenten Kupplungsteile und Kontakte sind. 8. Installation device according to one of the preceding claims, characterized in that the installation device is a circuit breaker and the device components are coupling parts and contacts.
EP99941594A 1998-08-27 1999-08-11 Electric installation device with shape-retaining axial support Expired - Lifetime EP1110229B9 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19839061 1998-08-27
DE19839061A DE19839061C2 (en) 1998-08-27 1998-08-27 Installation device with dimensionally stable axle bearing
PCT/EP1999/005898 WO2000013195A1 (en) 1998-08-27 1999-08-11 Electric installation device with shape-retaining axial support

Publications (3)

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EP1110229A1 true EP1110229A1 (en) 2001-06-27
EP1110229B1 EP1110229B1 (en) 2002-07-03
EP1110229B9 EP1110229B9 (en) 2002-12-11

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EP99941594A Expired - Lifetime EP1110229B9 (en) 1998-08-27 1999-08-11 Electric installation device with shape-retaining axial support

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EP (1) EP1110229B9 (en)
CN (1) CN1150575C (en)
AU (1) AU749825B2 (en)
BR (1) BR9913298B1 (en)
DE (2) DE19839061C2 (en)
ES (1) ES2179672T3 (en)
HU (1) HU222107B1 (en)
NO (1) NO319339B1 (en)
PL (1) PL192683B1 (en)
PT (1) PT1110229E (en)
TR (1) TR200100585T2 (en)
WO (1) WO2000013195A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10249895B3 (en) * 2002-10-25 2004-08-12 Siemens Ag installation device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB783470A (en) * 1955-06-17 1957-09-25 Crabtree & Co Ltd J A Improvements in dolly-operated circuit breakers
GB773193A (en) * 1955-09-30 1957-04-24 Chilton Aircraft Company Ltd Improvements in and relating to electrical circuit-breakers
DE1029913B (en) * 1957-04-30 1958-05-14 Anni Margareta Leyhausen Geb E Small electrical circuit breaker with system plate made of molded insulating material
BE631916A (en) * 1962-08-10
DE3734396A1 (en) * 1987-10-10 1989-04-27 Asea Brown Boveri Electrical switching apparatus
US5075656A (en) * 1990-03-26 1991-12-24 Teledyne Microwave Microwave switch

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0013195A1 *

Also Published As

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HUP0103227A3 (en) 2002-02-28
PT1110229E (en) 2002-11-29
DE19839061A1 (en) 2000-03-09
TR200100585T2 (en) 2001-07-23
EP1110229B1 (en) 2002-07-03
NO20010959L (en) 2001-02-26
WO2000013195A1 (en) 2000-03-09
ES2179672T3 (en) 2003-01-16
HU222107B1 (en) 2003-04-28
EP1110229B9 (en) 2002-12-11
BR9913298A (en) 2001-05-15
DE19839061C2 (en) 2000-10-26
NO20010959D0 (en) 2001-02-26
HUP0103227A2 (en) 2001-12-28
AU5514999A (en) 2000-03-21
CN1315049A (en) 2001-09-26
BR9913298B1 (en) 2013-05-28
NO319339B1 (en) 2005-07-18
CN1150575C (en) 2004-05-19
PL192683B1 (en) 2006-11-30
PL346300A1 (en) 2002-01-28
AU749825B2 (en) 2002-07-04
DE59901960D1 (en) 2002-08-08

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