EP2573786B1 - Circuit breaker with optimised housing stabilisation, in particular at high switching capacities - Google Patents
Circuit breaker with optimised housing stabilisation, in particular at high switching capacities Download PDFInfo
- Publication number
- EP2573786B1 EP2573786B1 EP11182090.8A EP11182090A EP2573786B1 EP 2573786 B1 EP2573786 B1 EP 2573786B1 EP 11182090 A EP11182090 A EP 11182090A EP 2573786 B1 EP2573786 B1 EP 2573786B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- circuit breaker
- housing
- stabilizing element
- stabilization element
- another
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
-
- 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
- H01H71/025—Constructional details of housings or casings not concerning the mounting or assembly of the different internal parts
- H01H71/0257—Strength considerations
-
- 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
- H01H2071/0242—Assembling parts of a circuit breaker by using snap mounting techniques
-
- 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
- H01H71/0235—Contacts and the arc extinguishing space inside individual separate cases, which are positioned inside the housing of the circuit breaker
Definitions
- the invention relates to a circuit breaker having a first switchgear area, in which a quenching chamber device and a contact slide device are arranged with movable contact pieces, which are positioned opposite to Festschalt Georgiaen, and a second switchgear area, in which a trip group of a short-circuit release and an overload release are arranged.
- Circuit-breakers in particular low-voltage circuit breakers, are electromagnetic self-switches in the event of a short circuit. Their operation corresponds in principle to the operation of circuit breakers. They are usually equipped with a thermal and a magnetic release and thus have the same structural elements as circuit breakers. However, they are designed for larger rated currents, in addition, the triggers of circuit breakers, unlike the circuit breaker, sometimes separately adjustable. In the low voltage range, the switches are also used as motor protection switches.
- the task of the circuit breaker is to protect downstream systems, in particular three-phase motors against damage due to overload or short circuit.
- the circuit breaker should switch off these currents in conjunction with the network protection devices. If there is gas between the two poles, it will be ionized by the flashover with a correspondingly high voltage difference between the poles, forming a self-sustaining gas discharge, also known as an arc. This plasma not only continues to conduct power, but also reduces the life of the device, and at high currents it can even destroy the switch.
- disconnectors are circuit breakers designed so that the arcing occurring when opening the switch contacts deleted quickly and without damaging the switch and thus the flow of current is interrupted.
- a particular problem with circuit breakers with high switching capacity, in particular up to 100 kA at rated currents up to 80 A is that with such large short circuits, the load on the chamber walls, that is, especially on the lower part of the circuit breaker due to the large pressure development very high is.
- the housing walls may bend outwards in such tripping operations or lead to a tear in the upper part of the circuit breaker. In the worst case, parts of the shell are broken off.
- the EP 0 903 762 A2 describes a circuit breaker with a first switchgear area, in which a quenching chamber device and a contact slide device with movable contact pieces are arranged, which are positioned opposite to Festschalt Georgian and a second switchgear area, in which a trigger assembly of a short-circuit release and an overload release are arranged, the Festschalt thoroughlye on at least one stabilizing element are attached.
- this electrical circuit breaker is provided to glue the preassembled contact and connection parts of the trip unit in the housing or a housing part, so that the attachment of these preassembled contact and connection parts in the housing takes place without additional connection.
- These are adhesive pockets on the housing present, which are filled with adhesive material. In this adhesive pockets protrude pins of the trip unit, which are glued in the adhesive pockets.
- the permanent adhesive connection keeps the bimetallic position stable. Thermal and mechanical stresses are significantly reduced by the use of the adhesive and by bonding, while the heat and dimensional stability is ensured.
- the object of the present invention is to provide a circuit breaker, which has stable housing walls even at high switching performance and thereby offers easy installation handling.
- this object is achieved by a circuit breaker having a first switching device area, in which a quenching chamber device and a contact slide device are arranged with movable contact pieces, which are positioned opposite to Festschalt Georgiaen, and a second switching device area in which a trip group of a short-circuit release and an overload release are arranged ,
- the invention is characterized in that the fixed contact pieces are mounted on at least one of the housing stabilization in the event of triggering serving stabilization element.
- the housing walls of the switching chambers of the circuit breaker are kept at a distance by the stabilizing element according to the invention.
- the stabilizing element is designed as a bolt and is screwed in the last assembly step to the first switching device area.
- opposite outer walls of the circuit breaker support each other in the event of a short circuit.
- the stabilizing element according to the invention is designed such that it is fitted into the intermediate walls of the first and second switchgear area in order to ensure the required clearances and creepage distances. As a result, the intermediate walls are stabilized at the same time.
- the stabilization elements, the bolts are plugged or clipped onto the fixed contact pieces and the release assembly. Thereafter, the assembly takes place in the second switching device area. Corresponding counter contours ensure a secure hold. The second switching device area is then placed on the first switching device area.
- the stabilizing elements put here in corresponding fixation structures. At the same time, these fixing structures serve to maintain air and creepage distances. Finally, the stabilizing elements, the bolts, are fixed from the outside on both sides with a screw to the first switching device area.
- the stabilizing element according to the invention is preferably made of plastic, in particular of PA66.
- the stabilizing element has three juxtaposed partial regions. Each subregion comprises two mutually parallel aligned guide surfaces, on each of which two oppositely arranged lugs are located.
- fixing structures are provided in each case between the subregions of the stabilizing element according to the invention.
- the fixing structures are U-shaped with two parallel legs and a leg connecting the transition region. These fixation structures engage in housing structures of the circuit breaker and ensure that the housing walls are fixed in position stable in the event of tripping.
- the stabilizing element according to the invention in particular for a circuit breaker, is supported on the intermediate and outer walls of the lower part.
- the wall deflection of the lower part and thus also of the upper part is thereby reduced.
- it is provided to fix the switching pieces on the stabilizing element, which is then in turn fitted in the upper and lower part.
- the assembly is unambiguous and assemblies oriented. It is also advantageous that the convective cooling channel is made possible for cooling the flow path. Although the order of assembly must be changed, however, the walls of the lower part are advantageously aligned with one another by the impressions of the stabilizing element.
- the height dimension of the fixed switching pieces is adjusted by the clamping acting stabilizing element with great accuracy.
- the two legs of the Festschalt capitat.
- the stabilizing element according to the invention is preferably made of plastic, in particular PA66.
- the assembly envisages clipping on the stabilizing elements, the Festschalt publishede and the trigger assembly. Then the assembly takes place in the upper part. Corresponding counter contours ensure a secure hold. The entire upper part is then placed on the lower part.
- the two stabilizing elements lie here in corresponding counter contours of the housing. These serve at the same time to maintain the clearances and creepage distances.
- the stabilizing elements are then fixed from the outside on both sides, preferably with a screw to the lower part.
- Fig. 1 shows a stabilizing element according to the invention 1, which is divided into three juxtaposed sub-areas 2, 3, 4, wherein each portion 2, 3, 4 each have two opposing guide surfaces 5, 6 and a the Both guide surfaces 5, 6 interconnecting bottom 7 have. At the guide surfaces 5, 6 a protruding nose 8 is arranged in each case. The lugs 8 on the guide surfaces 5, 6 are arranged opposite one another. Between the sections 2 and 3 and 3 and 4 fixing structures 9 are arranged, which are designed such that they engage position stable in housing structures of the circuit breaker.
- the fixing structures 9 are U-shaped with two mutually parallel legs 10, 11 and a transition region 12.
- the stabilizing element 1 is fastened by screws to the housing of the circuit breaker.
- the stabilizing element 1 is made of plastic, in particular PA66.
- Fig. 2 is the stabilizing element 1 before ( Fig. 2 right) and after ( Fig. 2 left) of the mounting on a locking piece 14, which is U-shaped, with two mutually parallel legs 15, 16 and a transition region 17.
- a locking piece 14 which is U-shaped, with two mutually parallel legs 15, 16 and a transition region 17.
- the leg 15 of the Festschalt Swisss 14 Before mounting ( Fig. 2 right), is the leg 15 of the Festschalt Industriess 14 below the stabilizing element 1 and the second leg 16 above the lugs 8 on the guide surfaces 5, 6 of the stabilizing element 1.
- the second leg 16 of the Festschaltrios 14 is clamped below the nose 8 of the stabilizing element 1.
- Fig. 3 the mounting state before the jamming of the leg 16 below the nose 8 of the stabilizing element 1 shows.
- FIG. 4 the stabilizing element 1 is shown with attached Festschalt Glaen 14 and tripping assembly 18.
- Fig. 5 is the assembly of stabilizing element 1, Festschalt Swissen 14 and trigger assembly 18 of Fig. 4 mounted in the housing of the second switching device area, that is, the upper part 19 of the circuit breaker shown.
- Fig. 6 the counter contour 20 for the fixing structure 9 on the stabilizing element 1 is shown enlarged.
- Fig. 7 shows the stabilizing element 1 plugged onto the first switching device area, that is, on the lower part 21 of the circuit breaker.
- Out Fig. 7 shows that in the housing of the lower part 21, the counter-contours 22 are provided which comprise the fixing structure 9 of the stabilizing element 1.
- the mating contours 22 of the lower part 21 are formed tightly against the legs 10, 11 of the fixing structure 9. The fixing structure 9 thus engages in a groove of the housing of the lower part 21st
- Fig. 8 shows the position of the stabilizing element 1, when it is installed in a circuit breaker, which is formed from an upper part 19 and a lower part 21. About a screw 23, the stabilizing elements 1 are fixed from the outside on both sides of the lower part 21.
- the stabilizing element according to the invention in particular for a circuit breaker, is supported on the intermediate and outer walls of the lower part.
- the wall deflection of the lower part and thus also of the upper part is thereby reduced.
- it is provided to fix the switching pieces on the stabilizing element, which is then in turn fitted in the upper and lower part.
- the assembly is unambiguous and assemblies oriented. It is also advantageous that the convective cooling channel is made possible for cooling the flow path. Although the order of assembly must be changed, however, the walls of the lower part are advantageously aligned with one another by the impressions of the stabilizing element.
- the height dimension of the fixed switching pieces is adjusted by the clamping acting stabilizing element with great accuracy.
- the two legs of the Festschalt Irish apart.
- the stabilizing element is preferably made of plastic, in particular PA66.
- the assembly envisages clipping on the stabilizing elements, the Festschalt publishede and the trigger assembly. Then the assembly takes place in the upper part. Corresponding counter contours ensure a secure hold. The entire upper part is then placed on the lower part.
- the two stabilizing elements lie here in corresponding counter contours of the housing. These serve at the same time to maintain the clearances and creepage distances.
- the stabilizing elements are then fixed from the outside on both sides, preferably with a screw to the lower part.
Landscapes
- Breakers (AREA)
Description
Die Erfindung betrifft einen Leistungsschalter mit einem ersten Schaltgerätebereich, in welchem eine Löschkammervorrichtung und eine Kontaktschiebervorrichtung mit beweglichen Schaltstücken angeordnet sind, welche gegenüberliegend zu Festschaltstücken positioniert sind, und einem zweiten Schaltgerätebereich, in welchem eine Auslösegruppe aus einem Kurzschlussauslöser und einem Überlastauslöser angeordnet sind.The invention relates to a circuit breaker having a first switchgear area, in which a quenching chamber device and a contact slide device are arranged with movable contact pieces, which are positioned opposite to Festschaltstücken, and a second switchgear area, in which a trip group of a short-circuit release and an overload release are arranged.
Leistungsschalter, insbesondere Niederspannungs-Leistungsschalter sind im Kurzschlussfall elektromagnetische Selbstschalter. Ihre Arbeitsweise entspricht prinzipiell der Arbeitsweise von Leitungsschutzschaltern. Sie sind meist mit einem thermischen und einem magnetischen Auslöser ausgestattet und besitzen somit die gleichen konstruktiven Elemente wie Leitungsschutzschalter. Allerdings sind sie für größere Bemessungsströme konstruiert, außerdem sind die Auslöser von Leistungsschaltern, anders als beim Leitungsschutzschalter, teilweise separat einstellbar. Im Niederspannungsbereich werden die Schalter auch als Motorschutzschalter eingesetzt.Circuit-breakers, in particular low-voltage circuit breakers, are electromagnetic self-switches in the event of a short circuit. Their operation corresponds in principle to the operation of circuit breakers. They are usually equipped with a thermal and a magnetic release and thus have the same structural elements as circuit breakers. However, they are designed for larger rated currents, in addition, the triggers of circuit breakers, unlike the circuit breaker, sometimes separately adjustable. In the low voltage range, the switches are also used as motor protection switches.
Die Aufgabe des Leistungsschalters besteht darin, nachgeordnete Anlagen, insbesondere Drehstrommotoren vor Schäden durch Überlast oder Kurzschluss zu schützen. Dabei soll der Leistungsschalter diese Ströme in Verbindung mit den Einrichtungen des Netzschutzes ausschalten. Befindet sich Gas zwischen den beiden Polen, wird es bei entsprechend hoher Spannungsdifferenz zwischen den Polen durch den Überschlag ionisiert, und es bildet sich eine sich selbst erhaltende Gasentladung, die auch als Lichtbogen bezeichnet wird. Dieses Plasma leitet nicht nur weiterhin Strom, sondern reduziert auch die Lebensdauer des Bauteils, bei starken Strömen kann es den Schalter sogar zerstören. Im Gegensatz zu Trennern sind Leistungsschalter so konstruiert, dass der beim Öffnen der Schaltkontakte entstehende Lichtbogen schnell und ohne Beschädigung des Schalters gelöscht und damit der Stromfluss unterbrochen wird.The task of the circuit breaker is to protect downstream systems, in particular three-phase motors against damage due to overload or short circuit. The circuit breaker should switch off these currents in conjunction with the network protection devices. If there is gas between the two poles, it will be ionized by the flashover with a correspondingly high voltage difference between the poles, forming a self-sustaining gas discharge, also known as an arc. This plasma not only continues to conduct power, but also reduces the life of the device, and at high currents it can even destroy the switch. In contrast to disconnectors are circuit breakers designed so that the arcing occurring when opening the switch contacts deleted quickly and without damaging the switch and thus the flow of current is interrupted.
Ein besonderes Problem bei Leistungsschaltern mit hohem Schaltvermögen, insbesondere bis zu 100 kA bei Nennströmen bis zu 80 A besteht darin, dass bei solch großen Kurzschlüssen die Belastung auf die Kammerwände, das heißt, insbesondere auf das Unterteil des Leistungsschalters auf Grund der großen Druckentwicklung sehr hoch ist. Die Gehäusewände können sich bei solchen Auslösevorgängen nach außen biegen oder zu einem Einriss im Oberteil des Leistungsschalters führen. Im schlimmsten Fall werden Teile des Oberteils weggebrochen.A particular problem with circuit breakers with high switching capacity, in particular up to 100 kA at rated currents up to 80 A is that with such large short circuits, the load on the chamber walls, that is, especially on the lower part of the circuit breaker due to the large pressure development very high is. The housing walls may bend outwards in such tripping operations or lead to a tear in the upper part of the circuit breaker. In the worst case, parts of the shell are broken off.
Die
Dazu beschreibt die
Der Nachteil am Stand der Technik besteht darin, dass Klebeverbindungen immer einem Alterungsprozess unterworfen sind und zudem die Montage aufwändig ist, da für eine Klebeverbindung immer zwei Teile passgenau zueinander geführt werden müssen.The disadvantage of the prior art is that adhesive bonds are always subjected to an aging process and, moreover, the assembly is complicated since two parts always have to be guided precisely to one another for an adhesive bond.
Demgemäß besteht die Aufgabe der vorliegenden Erfindung darin, einen Leistungsschalter zu schaffen, der auch bei hohen Schaltleistungen stabile Gehäusewandungen aufweist und dabei eine einfache Montagehandhabung bietet.Accordingly, the object of the present invention is to provide a circuit breaker, which has stable housing walls even at high switching performance and thereby offers easy installation handling.
Diese Aufgabe wird durch einen Leistungsschalter mit den Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Aus- und Weiterbildungen, welche einzeln oder in Kombination miteinander eingesetzt werden können, sind der Gegenstand der abhängigen Ansprüche.This object is achieved by a circuit breaker having the features of
Erfindungsgemäß wird diese Aufgabe durch einen Leistungsschalter mit einem ersten Schaltgerätebereich gelöst, in welchem eine Löschkammervorrichtung und eine Kontaktschiebervorrichtung mit beweglichen Schaltstücken angeordnet sind, welche gegenüberliegend zu Festschaltstücken positioniert sind, und einem zweiten Schaltgerätebereich, in welchem eine Auslösegruppe aus einem Kurzschlussauslöser und einem Überlastauslöser angeordnet sind. Die Erfindung zeichnet sich dadurch aus, dass die Festschaltstücke auf mindestens einem der Gehäusestabilisierung im Auslösefall dienendem Stabilisierungselement aufgesteckt sind.According to the invention, this object is achieved by a circuit breaker having a first switching device area, in which a quenching chamber device and a contact slide device are arranged with movable contact pieces, which are positioned opposite to Festschaltstücken, and a second switching device area in which a trip group of a short-circuit release and an overload release are arranged , The invention is characterized in that the fixed contact pieces are mounted on at least one of the housing stabilization in the event of triggering serving stabilization element.
Die Gehäusewände der Schaltkammern des Leistungsschalters werden durch das erfindungsgemäße Stabilisierungselement auf Distanz gehalten. Das Stabilisierungselement ist als Bolzen ausgebildet und wird im letzten Montageschritt an den ersten Schaltgerätebereich angeschraubt. Dadurch stützen sich gegenüberliegende Außenwände des Leistungsschalters im Kurzschlussfall gegenseitig ab. Das erfindungsgemäße Stabilisierungselement ist derart ausgebildet, dass es in die Zwischenwände des ersten und zweiten Schaltgerätebereichs eingepasst ist, um die erforderlichen Luft- und Kriechstrecken zu gewährleisten. Dies führt dazu, dass gleichzeitig auch die Zwischenwände stabilisiert werden.The housing walls of the switching chambers of the circuit breaker are kept at a distance by the stabilizing element according to the invention. The stabilizing element is designed as a bolt and is screwed in the last assembly step to the first switching device area. As a result, opposite outer walls of the circuit breaker support each other in the event of a short circuit. The stabilizing element according to the invention is designed such that it is fitted into the intermediate walls of the first and second switchgear area in order to ensure the required clearances and creepage distances. As a result, the intermediate walls are stabilized at the same time.
Erfindungsgemäß ist vorgesehen, dass die Stabilisierungselemente, die Bolzen, auf die Festschaltstücke und die Auslösebaugruppe aufgesteckt beziehungsweise angeklipst werden. Danach erfolgt die Montage in den zweiten Schaltgerätebereich. Dabei sorgen entsprechende Gegenkonturen für einen sicheren Halt. Der zweite Schaltgerätebereich wird dann auf den ersten Schaltgerätebereich aufgesetzt. Dabei legen sich die Stabilisierungselemente auch hier in entsprechende Fixierungsstrukturen. Diese Fixierungsstrukturen dienen gleichzeitig auch der Einhaltung der Luft- und Kriechstrecken. Abschließend werden die Stabilisierungselemente, die Bolzen, von außen beidseitig mit einer Schraube an den ersten Schaltgerätebereich fixiert.According to the invention, it is provided that the stabilization elements, the bolts, are plugged or clipped onto the fixed contact pieces and the release assembly. Thereafter, the assembly takes place in the second switching device area. Corresponding counter contours ensure a secure hold. The second switching device area is then placed on the first switching device area. Here, the stabilizing elements put here in corresponding fixation structures. At the same time, these fixing structures serve to maintain air and creepage distances. Finally, the stabilizing elements, the bolts, are fixed from the outside on both sides with a screw to the first switching device area.
Das erfindungsgemäße Stabilisierungselement ist vorzugsweise aus Kunststoff, insbesondere aus PA66 ausgebildet. Das Stabilisierungselement weist drei nebeneinander angeordnete Teilbereiche auf. Jeder Teilbereich umfasst zwei zueinander parallel ausgerichtete Führungsflächen, an welchen jeweils zwei sich gegenüber liegend angeordnete Nasen befinden. Jeweils zwischen den Teilbereichen des erfindungsgemäßen Stabilisierungselements, sind Fixierungsstrukturen vorgesehen. Die Fixierungsstrukturen sind U-förmig ausgebildet mit zwei parallel zueinander ausgebildeten Schenkeln und einem die Schenkel verbindenden Übergangsbereich. Diese Fixierungsstrukturen greifen in Gehäusestrukturen des Leistungsschalters und sorgen dafür, dass die Gehäusewandungen im Auslösefall positionsstabil fixiert sind.The stabilizing element according to the invention is preferably made of plastic, in particular of PA66. The stabilizing element has three juxtaposed partial regions. Each subregion comprises two mutually parallel aligned guide surfaces, on each of which two oppositely arranged lugs are located. In each case between the subregions of the stabilizing element according to the invention, fixing structures are provided. The fixing structures are U-shaped with two parallel legs and a leg connecting the transition region. These fixation structures engage in housing structures of the circuit breaker and ensure that the housing walls are fixed in position stable in the event of tripping.
Das erfindungsgemäße Stabilisierungselement, insbesondere für einen Leistungsschalter, stützt sich an den Zwischen- und Außenwänden des Unterteils ab. Die Wandausbiegung des Unterteils und somit auch des Oberteils wird dadurch verringert. Erfindungsgemäß ist vorgesehen, die Schaltstücke auf dem Stabilisierungselement zu fixieren, das dann wiederum im Ober- und Unterteil eingepasst wird. Die Montage ist dabei eindeutig und Baugruppen orientiert. Vorteilhaft ist außerdem, dass der konvektive Kühlkanal zur Kühlung der Strombahn ermöglicht wird. Die Montagereihenfolge muss zwar verändert werden, jedoch werden durch das Eindrücken des Stabilisierungselements die Wände des Unterteils in vorteilhafter Weise zueinander ausgerichtet. Das Höhenmaß der Festschaltstücke wird durch das klemmend wirkende Stabilisierungselement mit großer Genauigkeit eingestellt. Die beiden Schenkel der Festschaltstücke werden auseinander gehalten. Zudem werden Luft- und Kriechstrecken zwischen den Kammern sowie nach außen eingehalten.The stabilizing element according to the invention, in particular for a circuit breaker, is supported on the intermediate and outer walls of the lower part. The wall deflection of the lower part and thus also of the upper part is thereby reduced. According to the invention it is provided to fix the switching pieces on the stabilizing element, which is then in turn fitted in the upper and lower part. The assembly is unambiguous and assemblies oriented. It is also advantageous that the convective cooling channel is made possible for cooling the flow path. Although the order of assembly must be changed, however, the walls of the lower part are advantageously aligned with one another by the impressions of the stabilizing element. The height dimension of the fixed switching pieces is adjusted by the clamping acting stabilizing element with great accuracy. The two legs of the Festschaltstücke be kept apart. In addition, air and creepage distances between the chambers and outward are maintained.
Das erfindungsgemäße Stabilisierungselement ist vorzugsweise aus Kunststoff ausgebildet, insbesondere aus PA66. Die Montage sieht vor, dass auf die Stabilisierungselemente die Festschaltstücke und die Auslösebaugruppe angeklipst werden. Danach erfolgt die Montage ins Oberteil. Entsprechende Gegenkonturen sorgen für einen sicheren Halt. Das gesamte Oberteil wird dann auf das Unterteil aufgesetzt. Die beiden Stabilisierungselemente legen sich auch hier in entsprechende Gegenkonturen des Gehäuses. Diese dienen gleichzeitig der Einhaltung der Luft- und Kriechstrecken. Die Stabilisierungselemente werden dann von außen beidseitig vorzugsweise mit einer Schraube an das Unterteil fixiert.The stabilizing element according to the invention is preferably made of plastic, in particular PA66. The assembly envisages clipping on the stabilizing elements, the Festschaltstücke and the trigger assembly. Then the assembly takes place in the upper part. Corresponding counter contours ensure a secure hold. The entire upper part is then placed on the lower part. The two stabilizing elements lie here in corresponding counter contours of the housing. These serve at the same time to maintain the clearances and creepage distances. The stabilizing elements are then fixed from the outside on both sides, preferably with a screw to the lower part.
Weitere Vorteile und Ausführungsformen der Erfindung werden nachfolgend anhand von Ausführungsbeispielen sowie anhand der Zeichnung erläutert.Further advantages and embodiments of the invention will be explained below with reference to embodiments and with reference to the drawing.
Dabei zeigen schematisch:
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Fig. 1 in einer perspektivischen Darstellung ein Ausführungsbeispiel eines erfindungsgemäßen Stabilisierungselements; -
Fig. 2 in einer Schnittdarstellung das Stabilisierungselement direkt vor und nach der Montage auf einem Festschaltstück; -
Fig. 3 in einer perspektivischen Darstellung das am Festschaltstück fixierte Stabilisierungselement; -
Fig. 4 in einer perspektivischen Darstellung das Stabilisierungselement mit Festschaltstücken und Auslösebaugruppe; -
Fig. 5 in einer perspektivischen Darstellung das Stabilisierungselement mit den Festschaltstücken integriert im zweiten Schaltgerätebereich; -
Fig. 6 in einer perspektivischen Darstellung einen Ausschnitt ausFig. 5 , in welchem die Fixierung des Stabilisierungselements in der Gehäuseumgebung des Leistungsschalters dargestellt ist; -
Fig. 7 in einer perspektivischen Darstellung das Stabilisierungselement aufgesteckt auf dem ersten Schaltgerätebereich; -
Fig. 8 in einer perspektivischen Darstellung die Verschraubung des Stabilisierungselements am ersten Schaltgerätebereich.
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Fig. 1 in a perspective view of an embodiment of a stabilizing element according to the invention; -
Fig. 2 in a sectional view, the stabilizing element directly before and after mounting on a Festschaltstück; -
Fig. 3 in a perspective view fixed to the Festschaltstück stabilizing element; -
Fig. 4 in a perspective view of the stabilizing element with Festschaltstücken and tripping assembly; -
Fig. 5 in a perspective view, the stabilizing element with the Festschaltstücken integrated in the second switching device area; -
Fig. 6 in a perspective view of a sectionFig. 5 in which the fixation of the stabilizing element in the housing environment of the circuit breaker is shown; -
Fig. 7 in a perspective view, the stabilizing element plugged on the first switching device area; -
Fig. 8 in a perspective view the screwing of the stabilizing element on the first switching device area.
In
In
Aus
Das erfindungsgemäße Stabilisierungselement, insbesondere für einen Leistungsschalter, stützt sich an den Zwischen- und Außenwänden des Unterteils ab. Die Wandausbiegung des Unterteils und somit auch des Oberteils wird dadurch verringert. Erfindungsgemäß ist vorgesehen, die Schaltstücke auf dem Stabilisierungselement zu fixieren, das dann wiederum im Ober- und Unterteil eingepasst wird. Die Montage ist dabei eindeutig und Baugruppen orientiert. Vorteilhaft ist außerdem, dass der konvektive Kühlkanal zur Kühlung der Strombahn ermöglicht wird. Die Montagereihenfolge muss zwar verändert werden, jedoch werden durch das Eindrücken des Stabilisierungselements die Wände des Unterteils in vorteilhafter Weise zueinander ausgerichtet. Das Höhenmaß der Festschaltstücke wird durch das klemmend wirkende Stabilisierungselement mit großer Genauigkeit eingestellt. Die beiden Schenkel der Festschaltstücke werden auseinander gehalten. Zudem werden Luft- und Kriechstrecken zwischen den Kammern sowie nach außen eingehalten.The stabilizing element according to the invention, in particular for a circuit breaker, is supported on the intermediate and outer walls of the lower part. The wall deflection of the lower part and thus also of the upper part is thereby reduced. According to the invention it is provided to fix the switching pieces on the stabilizing element, which is then in turn fitted in the upper and lower part. The assembly is unambiguous and assemblies oriented. It is also advantageous that the convective cooling channel is made possible for cooling the flow path. Although the order of assembly must be changed, however, the walls of the lower part are advantageously aligned with one another by the impressions of the stabilizing element. The height dimension of the fixed switching pieces is adjusted by the clamping acting stabilizing element with great accuracy. The two legs of the Festschaltstücke be kept apart. In addition, air and air Creepage distances between the chambers as well as outward adhered.
Das Stabilisierungselement ist vorzugsweise aus Kunststoff ausgebildet, insbesondere aus PA66. Die Montage sieht vor, dass auf die Stabilisierungselemente die Festschaltstücke und die Auslösebaugruppe angeklipst werden. Danach erfolgt die Montage ins Oberteil. Entsprechende Gegenkonturen sorgen für einen sicheren Halt. Das gesamte Oberteil wird dann auf das Unterteil aufgesetzt. Die beiden Stabilisierungselemente legen sich auch hier in entsprechende Gegenkonturen des Gehäuses. Diese dienen gleichzeitig der Einhaltung der Luft- und Kriechstrecken. Die Stabilisierungselemente werden dann von außen beidseitig vorzugsweise mit einer Schraube an das Unterteil fixiert.The stabilizing element is preferably made of plastic, in particular PA66. The assembly envisages clipping on the stabilizing elements, the Festschaltstücke and the trigger assembly. Then the assembly takes place in the upper part. Corresponding counter contours ensure a secure hold. The entire upper part is then placed on the lower part. The two stabilizing elements lie here in corresponding counter contours of the housing. These serve at the same time to maintain the clearances and creepage distances. The stabilizing elements are then fixed from the outside on both sides, preferably with a screw to the lower part.
Claims (4)
- Circuit breaker having a first switchgear region in which a quenching chamber apparatus and a contact slide apparatus with moving switching pieces are arranged, which switching pieces are positioned opposite fixed switching pieces, and having a second switchgear region in which a tripping assembly (18) comprising a short-circuit tripping device and an overload tripping device are arranged, wherein the fixed switching pieces (14) are mounted on at least one stabilization element (1) which serves to stabilize the housing in the event of tripping, wherein the housing walls of the switching chambers of the circuit breaker are kept at a distance by the stabilization element (1), wherein the stabilization element (1) is in the form of bolts and, in the final assembly step, is screwed to the first switchgear region, characterized in that the stabilization element (1) is subdivided into three subregions (2, 3, 4) which are arranged next to one another, wherein fixing structures (9) are arranged between the subregions (2) and (3) and, respectively, (3) and (4) and are designed in such a way that they engage in mating contours (20, 22) of the circuit breaker in a positionally stable manner, wherein the fixing structures (9) are U-shaped and have two limbs (10, 11), which are parallel to one another, and a transition region (12), and wherein a web-like projection (13) is formed parallel, but in the opposite direction, to the limbs (10, 11) of the fixing structure (9) from the transition region (12).
- Circuit breaker according to Claim 1, characterized in that each subregion (2, 3, 4) has in each case two guide faces (5, 6) which are situated opposite one another and on which lugs (8) which are situated opposite one another are arranged.
- Circuit breaker according to either of the preceding claims, characterized in that the stabilization element (1) is formed from plastic.
- Circuit breaker according to Claim 3, characterized in that the plastic is PA66.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11182090.8A EP2573786B1 (en) | 2011-09-21 | 2011-09-21 | Circuit breaker with optimised housing stabilisation, in particular at high switching capacities |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11182090.8A EP2573786B1 (en) | 2011-09-21 | 2011-09-21 | Circuit breaker with optimised housing stabilisation, in particular at high switching capacities |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2573786A1 EP2573786A1 (en) | 2013-03-27 |
EP2573786B1 true EP2573786B1 (en) | 2016-08-03 |
Family
ID=44651464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP11182090.8A Not-in-force EP2573786B1 (en) | 2011-09-21 | 2011-09-21 | Circuit breaker with optimised housing stabilisation, in particular at high switching capacities |
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EP (1) | EP2573786B1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2572811B2 (en) * | 1988-05-12 | 1997-01-16 | 松下電工株式会社 | Circuit breakers and breakers |
JP3147179B2 (en) * | 1991-06-28 | 2001-03-19 | 富士電機株式会社 | Circuit breaker |
US6005207A (en) * | 1997-09-23 | 1999-12-21 | Siemens Energy & Automation, Inc. | Multi-part circuit breaker housing |
DE29918974U1 (en) | 1999-10-29 | 2001-03-08 | Moeller GmbH, 53115 Bonn | Electrical protection switching device |
-
2011
- 2011-09-21 EP EP11182090.8A patent/EP2573786B1/en not_active Not-in-force
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EP2573786A1 (en) | 2013-03-27 |
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