EP2573788A1 - 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
- EP2573788A1 EP2573788A1 EP11182093A EP11182093A EP2573788A1 EP 2573788 A1 EP2573788 A1 EP 2573788A1 EP 11182093 A EP11182093 A EP 11182093A EP 11182093 A EP11182093 A EP 11182093A EP 2573788 A1 EP2573788 A1 EP 2573788A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- circuit breaker
- switching device
- walls
- structures
- 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.)
- Withdrawn
Links
Images
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
- H01H71/02—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
Definitions
- the invention relates to a circuit breaker comprising a housing in which 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 are arranged, in which a current release 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.
- 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.
- this electrical circuit breaker is provided to glue the preassembled Kunststoff connection parts of the trip unit in the housing or a housing part, so that the attachment of these preassembled contact and connecting parts in the housing takes place without additional connection.
- adhesive pockets are present on the housing, which are filled with adhesive material. In these 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 line switch with a housing in which a first switching device area in which a Löschhuntvorides and a contact slide device are arranged with movable contact pieces, which are positioned opposite to Festschalt Georgiaen, and a second switching device area are arranged, in which a current release group are arranged from a short-circuit release and an overload release.
- the invention is characterized in that barbs-like housing structures are formed in the interior of the housing in the second switching device area from housing walls of the housing in the region of the second switching device area.
- these barbs are similar housing structures formed integrally from the housing walls. Accordingly, it is essential to the invention that the production of a connection between two or more parts takes place without a connecting piece, that is, only by appropriate shaping of the connecting parts. This is done in particular by appropriate undercuts in the parts to be joined.
- the advantage is that no additional part is needed, that is, existing components are occupied with additional functions without additional effort.
- the barbs similar housing structures in counter contours, which are preferably formed on the current release group grab.
- the housing of the second switching device area is stiffened by this arrangement.
- the circuit breaker according to the invention is designed so that the housing is constructed in two parts, wherein the first switching device area are arranged in a lower housing part and the second switching device area in an upper housing part.
- the circuit breaker is accordingly set together similar construction, which results in advantages in the assembly.
- the upper housing part of the circuit breaker is divided by two additional housing walls in the interior of the upper housing part into three chambers.
- the three phases of the current release group can be taken, which are each stabilized by the barb-like housing structures on the housing walls. It is of great advantage if the barbs similar housing structures are formed on the housing walls of a chamber lying opposite.
- the upper housing part of the circuit breaker is preferably cuboid, each with two mutually parallel housing walls. Both the top and the bottom of the housing top are made open.
- the upper housing part has in the interior two additional housing walls, which are arranged parallel to the later to be mounted Festschalt consultancyen the power release group. These additional housing walls divide the interior of the upper housing part into three chambers.
- both the housing inner walls of the housing outer walls, as well as the additional housing walls of the interior, barbs have similar housing structures that engage after mounting the power trip group in the upper housing part in counter contours of the support of the current release group.
- These barb-like housing structures are preferably formed integrally and L-shaped from the housing walls, so that a likewise L-shaped counter-contour on the support of the current release group can engage in the barbs similar housing structures.
- the barbs form similar housing structures on the housing recesses in which engage the counter contours of the carrier of the current release group and thus allow the stabilization of the upper housing part in case of short circuit.
- the invention is characterized in that a significant stiffening of the upper housing part of a circuit breaker can be achieved without the use of an additional part.
- the barb-like housing structures according to the invention and the counter-contours on the support of the current release group, the Gescousoberteilausbiegung is reduced. As a result, occurring stresses in the upper housing part are reduced.
- a fraction of the upper housing part is - if at all - shifted to larger short circuits, that is, to greater pressure loads of the upper housing part.
- a significant advantage is that no additional part is needed, resulting in no additional costs.
- Fig. 1 shows an upper housing part 1 of a circuit breaker.
- the upper housing part 1 is preferably formed cuboid with two mutually parallel housing walls 2, 3 and 4, 5. Both the top 6 and the bottom 7 of the upper housing part 1 are made open.
- the housing upper part 1 has in the interior two further housing walls 8, 9, which are formed parallel to the housing walls 4, 5 and the interior of the housing upper part 1 in three chambers 10, 11, 12 divided.
- Fig. 2 the structure of the housing inner wall of housing outer wall 5 is shown.
- barbs similar housing structures 13 can be seen, which engage in the housing upper part 1 in counter contours 14 of the carrier 15 of the current release group after mounting the current release group.
- These barb-like housing structures 13 are preferably formed in one piece and L-shaped from the housing walls 4, 5 and 8, 9, so that a likewise L-shaped mating contour 14 on the carrier 15 of the current release group can engage in the barbs similar housing structures 13.
- These barb-like housing structures 13 are also formed on the housing walls 8, 9 in the interior of the housing upper part 1 and on the inner wall of the housing wall 5.
- the barbs similar housing structures 13 position exactly opposite.
- Fig. 3 an arrangement of the carrier 15 of the current release group and the housing environment is shown.
- the barb-like housing structures 13 form a recess into which the mating contours 14 of the carrier 15 of the current release group engage and thus enable the stabilization of the housing upper part 1 in the event of a short circuit.
- the invention is characterized in that a significant stiffening of the upper housing part of a circuit breaker can be achieved without the use of an additional part.
- the barb-like housing structures according to the invention and the counter-contours on the support of the current release group, the Gescousoberteilausbiegung is reduced. As a result, occurring stresses in the upper housing part are reduced.
- a fraction of the upper housing part is - if at all - shifted to larger short circuits, that is, to greater pressure loads of the upper housing part.
- a significant advantage is that no additional part is needed, resulting in no additional costs.
Landscapes
- Breakers (AREA)
Abstract
Description
Die Erfindung betrifft einen Leistungsschalter mit einem Gehäuse, in welchem ein erster Schaltgerätebereich, in welchem eine Löschkammervorrichtung und eine Kontaktschiebervorrichtung mit beweglichen Schaltstücken angeordnet sind, welche gegenüber liegend zu Festschaltstücken positioniert sind, und ein zweiter Schaltgerätebereich angeordnet sind, in welchem eine Stromauslösegruppe aus einem Kurzschlussauslöser und einem Überlastauslöser angeordnet sind.The invention relates to a circuit breaker comprising a housing in which 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 are arranged, in which a current release group of a short-circuit release and an overload release are arranged.
Leistungsschalter, insbesondere Niederspannungsleistungsschalter, 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. 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 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.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. 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 is very high due to the large pressure development. 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.
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 Leitungsschalter mit einem Gehäuse gelöst, in welchem ein erster Schaltgerätebereich, in welchem eine Löschkammervorrichtung und eine Kontaktschiebervorrichtung mit beweglichen Schaltstücken angeordnet sind, welche gegenüber liegend zu Festschaltstücken positioniert sind, und ein zweiter Schaltgerätebereich angeordnet sind, in welchem eine Stromauslösegruppe aus einem Kurzschlussauslöser und einem Überlastauslöser angeordnet sind. Die Erfindung zeichnet sich dabei dadurch aus, dass aus Gehäusewandungen des Gehäuses im Bereich des zweiten Schaltgerätebereichs Widerhaken ähnliche Gehäusestrukturen in den Innenraum des Gehäuses im zweiten Schaltgerätebereich ausgebildet sind.According to the invention this object is achieved by a line switch with a housing in which a first switching device area in which a Löschkammervorrichtung and a contact slide device are arranged with movable contact pieces, which are positioned opposite to Festschaltstücken, and a second switching device area are arranged, in which a current release group are arranged from a short-circuit release and an overload release. The invention is characterized in that barbs-like housing structures are formed in the interior of the housing in the second switching device area from housing walls of the housing in the region of the second switching device area.
Vorzugsweise sind diese Widerhaken ähnlichen Gehäusestrukturen einstückig aus den Gehäusewandungen ausgebildet. Erfindungswesentlich ist demgemäß, dass die Herstellung einer Verbindung zwischen zwei oder mehreren Teilen ohne Verbindungsstück erfolgt, das heißt, nur durch entsprechende Ausformung der sich verbindenden Teile. Dies geschieht insbesondere durch entsprechende Hinterschnitte in den zu verbindenden Teilen. Der Vorteil besteht darin, dass kein zusätzliches Teil benötigt wird, das heißt, vorhandene Bauteile werden mit zusätzlichen Funktionen ohne Mehraufwand belegt.Preferably, these barbs are similar housing structures formed integrally from the housing walls. Accordingly, it is essential to the invention that the production of a connection between two or more parts takes place without a connecting piece, that is, only by appropriate shaping of the connecting parts. This is done in particular by appropriate undercuts in the parts to be joined. The advantage is that no additional part is needed, that is, existing components are occupied with additional functions without additional effort.
Erfindungsgemäß ist weiterhin vorgesehen, dass die Widerhaken ähnlichen Gehäusestrukturen in Gegenkonturen, die vorzugsweise an der Stromauslösergruppe ausgebildet sind, greifen. Durch die erfindungsgemäße Anordnung aus Widerhaken ähnlichen Gehäusestrukturen und Gegenkonturen an der Stromauslösegruppe, wird die gesamte Baugruppe, die den zweiten Schaltgerätebereich bildet, im Kurzschlussfall so positionsstabil fixiert, dass mögliche auftretende Spannungen im Oberteil des Gehäuses vermindert werden. Das Gehäuse des zweiten Schaltgerätebereichs wird durch diese Anordnung versteift.According to the invention it is further provided that the barbs similar housing structures in counter contours, which are preferably formed on the current release group grab. The inventive arrangement of barbs similar housing structures and mating contours on the current release group, the entire assembly, which forms the second switching device area, fixed in a stable position stable so that possible voltages occurring in the upper part of the housing can be reduced. The housing of the second switching device area is stiffened by this arrangement.
Vorzugsweise ist der erfindungsgemäße Leistungsschalter so ausgebildet, dass das Gehäuse zweiteilig aufgebaut ist, wobei der erste Schaltgerätebereich in einem Gehäuseunterteil und der zweite Schaltgerätebereich in einem Gehäuseoberteil angeordnet sind. Der Leistungsschalter ist demgemäß Baukasten ähnlich zusammen gesetzt, wodurch sich Vorteile bei der Montage ergeben.Preferably, the circuit breaker according to the invention is designed so that the housing is constructed in two parts, wherein the first switching device area are arranged in a lower housing part and the second switching device area in an upper housing part. The circuit breaker is accordingly set together similar construction, which results in advantages in the assembly.
Vorzugsweise ist das Gehäuseoberteil des Leistungsschalters durch zwei zusätzliche Gehäusewandungen im Innenraum des Gehäuseoberteils in drei Kammern unterteilt. In den drei Kammern können die drei Phasen der Stromauslösegruppe aufgenommen werden, die jeweils durch die Widerhaken ähnlichen Gehäusestrukturen an den Gehäusewandungen stabilisiert werden. Dabei ist es von großem Vorteil, wenn die Widerhaken ähnlichen Gehäusestrukturen an den Gehäusewandungen einer Kammer sich gegenüber liegend ausgebildet sind.Preferably, the upper housing part of the circuit breaker is divided by two additional housing walls in the interior of the upper housing part into three chambers. In the three chambers, the three phases of the current release group can be taken, which are each stabilized by the barb-like housing structures on the housing walls. It is of great advantage if the barbs similar housing structures are formed on the housing walls of a chamber lying opposite.
Erfindungsgemäß ist das Gehäuseoberteil des Leistungsschalters vorzugsweise quaderförmig ausgebildet mit jeweils zwei parallel zueinander ausgerichteten Gehäusewandungen. Sowohl die Oberseite als auch die Unterseite des Gehäuseoberteils sind offen ausgeführt. Das Gehäuseoberteil weist im Innenraum zwei zusätzliche Gehäusewandungen auf, die parallel zu den später zu montierenden Festschaltstücken der Stromauslösegruppe angeordnet sind. Diese zusätzlichen Gehäusewandungen unterteilen den Inneraum des Gehäuseoberteils in drei Kammern.According to the invention, the upper housing part of the circuit breaker is preferably cuboid, each with two mutually parallel housing walls. Both the top and the bottom of the housing top are made open. The upper housing part has in the interior two additional housing walls, which are arranged parallel to the later to be mounted Festschaltstücken the power release group. These additional housing walls divide the interior of the upper housing part into three chambers.
Erfindungsgemäß ist weiterhin vorgesehen, dass sowohl die Gehäuseinnenwände der Gehäuseaußenwandungen, als auch die zusätzlichen Gehäusewandungen des Innenraums, Widerhaken ähnliche Gehäusestrukturen aufweisen, die nach der Montage der Stromauslösegruppe in das Gehäuseoberteil in Gegenkonturen des Trägers der Stromauslösegruppe greifen. Diese Widerhaken ähnlichen Gehäusestrukturen sind vorzugsweise einstückig und L-förmig aus den Gehäusewandungen ausgebildet, so dass eine ebenfalls L-förmig ausgebildete Gegenkontur am Träger der Stromauslösegruppe in die Widerhaken ähnlichen Gehäusestrukturen eingreifen kann. Dabei formen die Widerhaken ähnlichen Gehäusestrukturen an den Gehäusewandungen Ausnehmungen, in welche die Gegenkonturen des Trägers der Stromauslösegruppe greifen und somit die Stabilisierung des Gehäuseoberteils im Kurzschlussfall ermöglichen.According to the invention it is further provided that both the housing inner walls of the housing outer walls, as well as the additional housing walls of the interior, barbs have similar housing structures that engage after mounting the power trip group in the upper housing part in counter contours of the support of the current release group. These barb-like housing structures are preferably formed integrally and L-shaped from the housing walls, so that a likewise L-shaped counter-contour on the support of the current release group can engage in the barbs similar housing structures. In this case, the barbs form similar housing structures on the housing recesses in which engage the counter contours of the carrier of the current release group and thus allow the stabilization of the upper housing part in case of short circuit.
Die Erfindung zeichnet sich dadurch aus, dass ohne Verwendung eines zusätzlichen Teiles eine deutliche Versteifung des Gehäuseoberteils eines Leistungsschalters erreicht werden kann. Durch die erfindungsgemäßen Widerhaken ähnlichen Gehäusestrukturen sowie die Gegenkonturen am Träger der Stromauslösegruppe, wird die Gehäuseoberteilausbiegung verringert. Dadurch werden auftretende Spannungen im Gehäuseoberteil vermindert. Ein Bruch des Gehäuseoberteils wird - wenn überhaupt - zu größeren Kurzschlüssen, das heißt, zu größeren Druckbelastungen des Gehäuseoberteils verschoben. Ein wesentlicher Vorteil besteht darin, dass kein zusätzliches Teil benötigt wird, wodurch keine zusätzlichen Kosten entstehen. Durch die Stabilisierung aus Widerhaken ähnlichen Gehäusestrukturen an den Gehäusewandungen des Gehäuseoberteils des Leistungsschalters und den Gegenkonturen am Träger der Stromauslösegruppe, konnte nach ersten Ergebnissen die Belastung auf das Gehäuseoberteil so weit verringert werden, dass einem Kurzschluss von 100 kA standgehalten werden konnte.The invention is characterized in that a significant stiffening of the upper housing part of a circuit breaker can be achieved without the use of an additional part. The barb-like housing structures according to the invention and the counter-contours on the support of the current release group, the Gehäusoberteilausbiegung is reduced. As a result, occurring stresses in the upper housing part are reduced. A fraction of the upper housing part is - if at all - shifted to larger short circuits, that is, to greater pressure loads of the upper housing part. A significant advantage is that no additional part is needed, resulting in no additional costs. Due to the stabilization of barb-like housing structures on the housing walls of the upper housing part of the circuit breaker and the counter contours on the carrier of the current release group, the load on the upper housing part could be reduced so far after first results that a short circuit of 100 kA could be withstood.
Weitere Vorteile und Ausführungen der Erfindung werden nachfolgend anhand eines Ausführungsbeispiels sowie anhand der Zeichnung erläutert.Further advantages and embodiments of the invention will be explained below with reference to an embodiment and with reference to the drawing.
Dabei zeigen schematisch:
-
Fig. 1 in einer perspektivischen Darstellung ein Gehäuseoberteil eines Leistungsschalters; -
Fig. 2 in einer perspektivischen Schnittdarstellung eine Gehäuseinnenwand einer Gehäuseaußenwand des Gehäuseoberteils; -
Fig. 3 in einer Draufsicht eine Anordnung aus einem Träger einer Stromauslösegruppe und der Gehäuseumgebung.
-
Fig. 1 in a perspective view of a housing upper part of a circuit breaker; -
Fig. 2 in a perspective sectional view of a housing inner wall of a housing outer wall of the housing upper part; -
Fig. 3 in a plan view of an arrangement of a support of a current release group and the housing environment.
In
In
Die Erfindung zeichnet sich dadurch aus, dass ohne Verwendung eines zusätzlichen Teiles eine deutliche Versteifung des Gehäuseoberteils eines Leistungsschalters erreicht werden kann. Durch die erfindungsgemäßen Widerhaken ähnlichen Gehäusestrukturen sowie die Gegenkonturen am Träger der Stromauslösegruppe, wird die Gehäuseoberteilausbiegung verringert. Dadurch werden auftretende Spannungen im Gehäuseoberteil vermindert. Ein Bruch des Gehäuseoberteils wird - wenn überhaupt - zu größeren Kurzschlüssen, das heißt, zu größeren Druckbelastungen des Gehäuseoberteils verschoben. Ein wesentlicher Vorteil besteht darin, dass kein zusätzliches Teil benötigt wird, wodurch keine zusätzlichen Kosten entstehen. Durch die Stabilisierung aus Widerhaken ähnlichen Gehäusestrukturen an den Gehäusewandungen des Gehäuseoberteils des Leistungsschalters und den Gegenkonturen am Träger der Stromauslösegruppe, konnte nach ersten Ergebnissen die Belastung auf das Gehäuseoberteil so weit verringert werden, dass einem Kurzschluss von 100 kA standgehalten werden konnte.The invention is characterized in that a significant stiffening of the upper housing part of a circuit breaker can be achieved without the use of an additional part. The barb-like housing structures according to the invention and the counter-contours on the support of the current release group, the Gehäusoberteilausbiegung is reduced. As a result, occurring stresses in the upper housing part are reduced. A fraction of the upper housing part is - if at all - shifted to larger short circuits, that is, to greater pressure loads of the upper housing part. A significant advantage is that no additional part is needed, resulting in no additional costs. Due to the stabilization of barb-like housing structures on the housing walls of the upper housing part of the circuit breaker and the counter contours on the carrier of the current release group, the load on the upper housing part could be reduced so far after first results that a short circuit of 100 kA could be withstood.
Claims (6)
dadurch gekennzeichnet, dass aus Gehäusewandungen (4,5,8,9) des Gehäuses im Bereich des zweiten Schaltgerätebereiches Widerhaken ähnliche Gehäusestrukturen (13) in den Innenraum des Gehäuses im zweiten Schaltgerätebereich ausgebildet sind.A circuit breaker comprising a housing in which a first switchgear portion in which a quenching chamber device and a contact slider device having movable contact pieces positioned opposite to fixed contact pieces and a second switchgear portion are arranged, in which a current trip group of a short-circuit release and an overload release are arranged are,
characterized in that from housing walls (4,5,8,9) of the housing in the region of the second switching device area barbs similar housing structures (13) are formed in the interior of the housing in the second switching device area.
dadurch gekennzeichnet, dass die Widerhaken ähnlichen Gehäusestrukturen (13) in Gegenkonturen (14), die am Träger (15) der Stromauslösegruppe ausgebildet sind, greifen.Circuit breaker according to Claim 1,
characterized in that the barbs similar housing structures (13) in counter contours (14) which are formed on the carrier (15) of the current release group attack.
dadurch gekennzeichnet, dass das Gehäuse zweiteilig aufgebaut ist, wobei der erste Schaltgerätebereich in einem Gehäuseunterteil und der zweite Schaltgerätebereich in einem Gehäuseoberteil (1) angeordnet ist.Circuit breaker according to Claim 1 or 2,
characterized in that the housing is constructed in two parts, wherein the first switching device area is arranged in a lower housing part and the second switching device area in an upper housing part (1).
dadurch gekennzeichnet, dass das Gehäuseoberteil (1) durch zwei zusätzliche Gehäusewandungen (8, 9) im Innenraum des Gehäuseoberteils (1) in die drei Kammern (10, 11, 12) unterteilt ist.Circuit breaker according to claim 3,
characterized in that the upper housing part (1) by two additional housing walls (8, 9) in the interior of the housing upper part (1) in the three chambers (10, 11, 12) is divided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11182093A EP2573788A1 (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 |
---|---|---|---|
EP11182093A EP2573788A1 (en) | 2011-09-21 | 2011-09-21 | Circuit breaker with optimised housing stabilisation, in particular at high switching capacities |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2573788A1 true EP2573788A1 (en) | 2013-03-27 |
Family
ID=44651467
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11182093A Withdrawn EP2573788A1 (en) | 2011-09-21 | 2011-09-21 | Circuit breaker with optimised housing stabilisation, in particular at high switching capacities |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2573788A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE6922156U (en) * | 1969-06-03 | 1969-11-06 | Bbc Brown Boveri & Cie | HOLDING DEVICE FOR HOLDING SWITCH CHAMBERS IN ELECTRIC SWITCHES |
US4849725A (en) * | 1987-06-12 | 1989-07-18 | Fuji Electric Co., Ltd. | Multipolar circuit breaker |
WO2001033595A1 (en) | 1999-10-29 | 2001-05-10 | Moeller Gmbh | Electric safety switch device |
WO2007009406A1 (en) * | 2005-07-20 | 2007-01-25 | Oez S.R.O. | Switching apparatus, particularly power circuit breaker |
-
2011
- 2011-09-21 EP EP11182093A patent/EP2573788A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE6922156U (en) * | 1969-06-03 | 1969-11-06 | Bbc Brown Boveri & Cie | HOLDING DEVICE FOR HOLDING SWITCH CHAMBERS IN ELECTRIC SWITCHES |
US4849725A (en) * | 1987-06-12 | 1989-07-18 | Fuji Electric Co., Ltd. | Multipolar circuit breaker |
WO2001033595A1 (en) | 1999-10-29 | 2001-05-10 | Moeller Gmbh | Electric safety switch device |
WO2007009406A1 (en) * | 2005-07-20 | 2007-01-25 | Oez S.R.O. | Switching apparatus, particularly power circuit breaker |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69836300T2 (en) | Vacuum switch and this using vacuum switchgear | |
US10665413B2 (en) | Fusible switch disconnect device for DC electrical power system | |
DE60213329T2 (en) | Power switch with cast housing with connection terminal | |
US9312081B2 (en) | Arcless fusible switch disconnect device for DC circuits | |
WO2006021532A1 (en) | Supply system for low-voltage switchgear | |
EP2573784B1 (en) | Circuit breaker with optimised housing stabilisation through clamping pieces | |
EP1685578B1 (en) | Circuit breaker comprising a fuse | |
EP3428942A1 (en) | Direct current device for eliminating arcing and electromechanical direct current switching device | |
DE19631817C1 (en) | SF¶6¶ gas-insulated switchgear for distribution networks | |
EP2573788A1 (en) | Circuit breaker with optimised housing stabilisation, in particular at high switching capacities | |
US20140014482A1 (en) | Tie bar for molded case circuit breaker and method of assembly | |
EP2573787A1 (en) | Circuit breaker with optimised housing stabilisation, in particular at high switching capacities | |
DE102011082191A1 (en) | Insulation device for electrical insulation of electrical terminal of e.g. circuit breaking switch, has insulation cap formed with base body over hinge such that cap is movable relative to base body to enable access to screw if necessary | |
EP2573786B1 (en) | Circuit breaker with optimised housing stabilisation, in particular at high switching capacities | |
DE102023200524B3 (en) | Connection terminal and DIN rail device | |
EP4213175B1 (en) | Low voltage circuit breaker with voltage tap and pcb card and method of assembly | |
EP2573783B1 (en) | Arcing chamber device for electromagnetic switching devices | |
DE102007016658A1 (en) | Electrical distributing system, has screen element protecting connections of multi-phase switch components against blowing out gas of connection-lateral multi-phase switch component, and including edge region | |
DE102022208674A1 (en) | Modular, multi-pole series-mounted device | |
DE102022202311A1 (en) | Electronically switching modular device and insulated housing | |
DE102022200296A1 (en) | Single pole housing module and low voltage circuit breaker | |
DE102014226221A1 (en) | Low-voltage circuit breaker and arrangement for monitoring a circuit in a low-voltage network | |
CN104051169B (en) | The circuit interrupting equipment of arc extinguishing features with contraction | |
DE102020205596A1 (en) | Modular construction system for low-voltage circuits | |
EP4367699A1 (en) | Circuit breaker and method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20130928 |