EP1297547B1 - Connecting bars for electrical devices and apparatus for different nominal currents having a cavity - Google Patents
Connecting bars for electrical devices and apparatus for different nominal currents having a cavity Download PDFInfo
- Publication number
- EP1297547B1 EP1297547B1 EP01984074A EP01984074A EP1297547B1 EP 1297547 B1 EP1297547 B1 EP 1297547B1 EP 01984074 A EP01984074 A EP 01984074A EP 01984074 A EP01984074 A EP 01984074A EP 1297547 B1 EP1297547 B1 EP 1297547B1
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- Prior art keywords
- connecting rail
- piece
- elements
- limbs
- rail according
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- 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
- H01H71/08—Terminals; Connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
Definitions
- the invention relates to profiled semi-finished, provided with a cavity connecting rails for connecting the electrical components of electrical equipment and apparatus with an external circuit, wherein the connecting rails extend through located in the device or apparatus wall window openings and fixed by fastening means in the housing. Connecting rails of this type have been proposed in DE patent application 199 39 710.4.
- a system-side supply rail or another suitable connection element for the energy supply or removal can be connected to the part of a connection rail which is led out from the housing to the outside.
- the connecting rail is usually fixedly arranged in the insulating wall body of a device or apparatus, which is usually realized by means of passage openings and fasteners.
- the connecting rails must continue to be designed so that they can be produced efficiently and are suitable to fulfill certain functions. These functions are: current carrying capacity, heat dissipation, an area for connection of feeder rails as well as the absorption and transmission of static and dynamic forces. It is therefore a job that is heavily used in terms of power and dynamics.
- connection bars for different currents in a single housing with uniform lead-through openings.
- a fastener for the connecting rail used in conventional Devices and apparatus Screws which extend through openings arranged transversely to the longitudinal axis of the connecting rails and for the reception of which usually a nut thread is provided in the wall of the corresponding housing.
- metal inserts or press-in nuts are used for a housing made of an insulating material for this purpose.
- connecting rails which are sawn from a profile material with one or more projections, such that the connecting rails are inserted through a hole and the one or more projections of the profile material as stops of the connecting rail serve on the switch housing and thus form the power transmission of the switching forces on the housing.
- Such a connecting rail for a low-voltage circuit breaker, with a molded projection has been proposed to overcome the aforementioned expense in DE 196 43 607 A1 (closest prior art).
- This connecting rail is inserted from the inside through the passage opening of the housing wall and is supported by means of a projection on the rear wall of the housing.
- special profiles are used which have an integrally molded bar, from which then pieces are cut, which form the connecting rail.
- connecting rails of different thicknesses, depending on the nominal current.
- These connecting rails are also made of profiles by sawing.
- the housing has uniform cutouts for the connection rails, which are each designed for the largest rated current.
- plastic spacers are used, which fill the gaps.
- the mounting of the Distanzstükke has the disadvantage of additional costs for these parts and higher installation costs and they form a source of error in a customer installation of the current paths.
- connection bars regardless of the other manufacturing technology made of solid material. This requires that the rails for different currents also have different cross-sections and thus different external dimensions; a disadvantage that has already been dealt with above.
- Hollow current-carrying conductors are known from high-voltage and high-frequency engineering.
- the hollow design serves only the purpose of reducing the corona losses of the conductors, ie the radiation of energy at sharp edges or narrow radii, or to take into account the skin effect, which is based on the fact that at high frequencies only in the outer region of a conductor Energy is transmitted, but not for the purpose of ensuring a different current-carrying capacity with a uniform outer cross-section.
- a current-carrying hollow arrangement is also described in US-PS 3,597,713, which shows a device as a replacement for a high-voltage fuse, in which a combination of a vacuum switch with a handle, which, similar to a high or medium voltage circuit breaker an eyelet for actuation, is shown.
- a hollow connector of the device an electronic circuit is installed in a hollow connector of the device.
- connection bars for low-voltage circuit breakers which are made from a hollow profiled material by sawing and which can have both one and more cavities. These connection bars have the same outer cross section for all different current intensities.
- the current carrying capacity is regulated by means of the wall thickness of the hollow rail, which forms the conductive, current-carrying cross-section. It follows that at lower currents by small wall thicknesses, a larger, or at higher currents by thicker wall thicknesses a smaller inner cavity is present, which can lead to a massive design without a cavity, at the highest rated current. On the external dimensions required for this highest rated current then the lead-through openings are designed in the respective equipment and apparatus housings. However, the production of such hollow profiles from some preferably used for the production of such connecting rails materials is associated with considerable difficulties.
- the object of the present invention is to design hollow connection rails in such a way that they have the same outer cross-section even with different nominal current values and without additional spacers in device and apparatus housings with uniform passage openings can be used, but to avoid the problems in the production of hollow semi-finished profiles.
- the hollowness of the connecting rail is caused by the fact that it consists of two or more sections formed as profiles, which are formed so that they are positively or otherwise connectable to each other to a hollow connecting rail.
- the connecting rail is composed of two profile-shaped sections, of which the first part forms the upper part of the connecting rail and the second part forms the lower part of the same. This results in flat upper and lower rail surfaces, which is particularly important in terms of use for slide-in switch to achieve proper sliding into the Einschublamellen briefly.
- the sections have one or more legs whose lengths determine the height of the connecting rail. This ensures that the connection bars for all currents have the same external dimensions that correspond to the uniform dimensions of the feed-through window in the rear wall of the low-voltage circuit breaker.
- the current carrying capacity of the connecting rail is determined by the thickness of the material.
- one or more legs of the respective one section are provided with connecting elements which engage positively in counter-elements of the respective other section.
- the three legs are provided, two of which are arranged on a section and one on the other section. This results in a simpler manufacturing for the sections, as if all legs would be arranged on a section.
- the cuts are by one or more positive connections and / or partially connected by soldering, welding or the like. Required holes for fixing the system side busbars are advantageously punched.
- Fig. 1 shows schematically a low-voltage circuit breaker in section.
- Fig. 2 shows a possible advantageous embodiment of a lower connecting rail according to the present invention in section.
- FIG. 3 shows the connecting rail according to FIG. 2 in the state before the parts are assembled in a perspective view.
- Fig. 4 shows the connecting rail of Figure 2 after joining the sections in perspective view.
- a low-voltage circuit breaker 1 is shown schematically in section.
- the upper terminal rail 3 shown in a conventional form and led out in the inventive embodiment, passed through the current transformer 6, lower connecting rail 4 are led out.
- the contact carrier 9 located movable switch contact 10 is connected at the upper connecting rail 3 .
- the arc extinguishing chamber 7 Above the fixed switching contact 5 and the movable switching contact 10, the arc extinguishing chamber 7 is arranged.
- Fig. 2 shows a possible advantageous embodiment of a lower connecting rail 4 according to the present invention in side view. It consists of a profile-shaped upper portion 11 and a likewise profiled lower portion 12. These are connected by a provided on the upper portion 11 web 13 with a transverse web located at the end 14 and provided at the lower portion 12 guide rail 15 by telescoping positively connected to each other.
- the upper portion 11 has an angled portion 16, and the lower portion 12 is a right angle portion 17, both of which are dimensioned to form connecting webs between the upper portion 11 and the lower portion 12 with their lengths determine the height of the connecting rail 4.
- both portions 11,12 are connected to each other in addition to the positive connection described above by soldering, welding or the like.
- a hollow connecting rail 4 is provided which has two cavities 18, 19.
- the extensions 22, 23 serve as stops for an axial fixation of the connecting rail 4 on the switch housing.
- FIG. 3 the connecting rail 4 according to FIG. 2 in the state before the joining of the sections 11, 12 is shown in a perspective view and in Fig. 4, the same connecting rail 4 after joining the sections 11, 12, also in perspective Presentation.
- the same parts of Fig. 2 are provided with the same reference numerals, which is why a repeated description of these parts is unnecessary.
- FIGS. 3 and 4 only the function of the web 13 with its transverse web 14 and the guide rail 15 is to be illustrated more clearly.
- 11 recesses 25 are provided in an extension 24 at the upper portion.
- the right angle arranged part 17 of the lower portion 12 has an extension 26, in which also recesses 27 are provided, which are aligned with the recesses 25 in the upper portion 11, so that the above-mentioned flexible conductor cables into the recesses 25, 27 of both sections 11, 12 can be introduced.
- the recesses 25; 27 can of course also be milled after assembly.
- the advantage of this embodiment according to the invention is that these sub-profiles can be easily produced.
- the current carrying capacity of the terminal rail is determined by the thickness of the material and not by the external dimensions.
Landscapes
- Breakers (AREA)
- Installation Of Bus-Bars (AREA)
- Mounting Components In General For Electric Apparatus (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Non-Insulated Conductors (AREA)
Description
Die Erfindung betrifft aus profilierten Halbzeugen hergestellte, mit einem Hohlraum versehene Anschlussschienen zur Verbindung der elektrischen Komponenten elektrischer Geräte und Apparate mit einem äußeren Stromkreis, wobei sich die Anschlussschienen durch in der Geräte- oder Apparatewand befindliche Fensteröffnungen erstrecken und durch Befestigungsmittel in dem Gehäuse fixiert sind. Anschlussschienen dieser Art wurden in der DE-Patentanmeldung 199 39 710.4 vorgeschlagen.The invention relates to profiled semi-finished, provided with a cavity connecting rails for connecting the electrical components of electrical equipment and apparatus with an external circuit, wherein the connecting rails extend through located in the device or apparatus wall window openings and fixed by fastening means in the housing. Connecting rails of this type have been proposed in DE patent application 199 39 710.4.
An dem aus dem Gehäuse nach außen hindurchgeführten Teil einer Anschlussschiene kann auf diese Weise beispielsweise eine anlagenseitige Zuleitungsschiene oder ein anderes geeignetes Verbindungselement für die Energiezuführung bzw. -abführung angeschlossen werden. Die Anschlussschiene ist dabei in der Regel in dem isolierenden Wandkörper eines Gerätes oder Apparates fest angeordnet, was in der Regel mit Hilfe von Durchführungsöffnungen und Befestigungselementen realisiert wird.In this way, for example, a system-side supply rail or another suitable connection element for the energy supply or removal can be connected to the part of a connection rail which is led out from the housing to the outside. The connecting rail is usually fixedly arranged in the insulating wall body of a device or apparatus, which is usually realized by means of passage openings and fasteners.
Die Anschlussschienen müssen weiterhin so gestaltet sein, dass sie rationell herstellbar sind und geeignet sind, bestimmte Funktionen zu erfüllen. Diese Funktionen sind: die Stromtragfähigkeit, die Wärmeabfuhr, eine Fläche für Anschlüsse von Zuleitungsschienen sowie die Aufnahme und Übertragung statischer und dynamischer Kräfte. Es handelt sich also um eine kräftemäßig und dynamisch hoch beanspruchte stelle.The connecting rails must continue to be designed so that they can be produced efficiently and are suitable to fulfill certain functions. These functions are: current carrying capacity, heat dissipation, an area for connection of feeder rails as well as the absorption and transmission of static and dynamic forces. It is therefore a job that is heavily used in terms of power and dynamics.
Darüber hinaus soll es möglich sein, Anschlussschienen für unterschiedliche Stromstärken in einem einheitlichen Gehäuse mit einheitlichen Durchführungsöffnungen unterzubringen. Als Befestigungsmittel für die Anschlussschiene dienen bei herkömmlichen Geräten und Apparaten Schrauben, die sich durch quer zur Längsachse der Anschlussschienen angeordnete Öffnungen erstrecken und für deren Aufnahme in der Regel in der Wand des entsprechenden Gehäuses ein Muttergewinde vorgesehen ist. Aus Gründen der mechanischen Festigkeit werden bei einem aus einem Isolierstoff bestehenden Gehäuse hierzu metallische Einlegmuttern oder Einpressmuttern verwendet.In addition, it should be possible to accommodate connection bars for different currents in a single housing with uniform lead-through openings. As a fastener for the connecting rail used in conventional Devices and apparatus Screws which extend through openings arranged transversely to the longitudinal axis of the connecting rails and for the reception of which usually a nut thread is provided in the wall of the corresponding housing. For reasons of mechanical strength, metal inserts or press-in nuts are used for a housing made of an insulating material for this purpose.
Die Herstellung und der Einbau derartiger Anschlussschienen ist folglich mit einem hohen Material- und Fertigungsaufwand verbunden. Es wurde deshalb, zum Beispiel bei Niederspannungs-Leistungsschaltern, die Verwendung von Anschlussschienen vorgeschlagen, die von einem Profilmaterial mit einem oder mehreren Vorsprüngen abgesägt sind, derart, dass die Anschlussschienen durch ein Loch gesteckt werden und der oder die Vorsprünge des Profilmaterials als Anschläge der Anschlussschiene am Schaltergehäuse dienen und somit die Kraftüberleitung der Schaltkräfte auf das Gehäuse bilden.The production and installation of such connecting rails is therefore associated with a high material and manufacturing costs. It has therefore been proposed, for example in low-voltage circuit breakers, the use of connecting rails, which are sawn from a profile material with one or more projections, such that the connecting rails are inserted through a hole and the one or more projections of the profile material as stops of the connecting rail serve on the switch housing and thus form the power transmission of the switching forces on the housing.
Damit ist bei derartigen Schaltern einmal die Position des Festkontaktes zum Gehäuse bestimmt und zum Anderen wird die Befestigungsstelle von den genannten Kräften entlastet, so dass hier nur eine Fixierkraft benötigt wird, eine Belastung durch die Scherkraft und die Positionisierungskraft aber nicht auftritt.Thus, in such switches once the position of the fixed contact is determined to the housing and on the other hand, the attachment point is relieved of the forces mentioned, so that only a fixing force is required, a load by the shearing force and the positioning force does not occur.
Eine derartige Anschlussschiene für einen Niederspannungs-Leistungsschalter, mit einem angeformten Vorsprung, wurde zur Überwindung des vorgenannten Aufwandes in der DE 196 43 607 A1 (nächstliegender Stand der Technik) vorgeschlagen. Diese Anschlussschiene wird von innen durch die Durchführungsöffnung der Gehäusewand gesteckt und stützt sich mittels eines Vorsprunges an der Gehäuserückwand ab. Zur Herstellung dieser Anschlussschiene werden besondere Profile verwendet, die eine einstückig angeformte Leiste aufweisen, von denen dann Stücke abgeschnitten werden, welche die Anschlussschiene bilden.Such a connecting rail for a low-voltage circuit breaker, with a molded projection, has been proposed to overcome the aforementioned expense in DE 196 43 607 A1 (closest prior art). This connecting rail is inserted from the inside through the passage opening of the housing wall and is supported by means of a projection on the rear wall of the housing. To produce this connection rail special profiles are used which have an integrally molded bar, from which then pieces are cut, which form the connecting rail.
Bei Niederspannungs-Leistungsschaltern ist es innerhalb einer Baureihe bisher üblich, je nach dem Nennstrom verschieden dicke Anschlussschienen zu verwenden. Diese Anschlussschienen werden ebenfalls aus Profilen durch Absägen hergestellt. Das Gehäuse weist einheitliche Ausschnitte für die Anschlussschienen auf, die jeweils für die größte Nennstromstärke ausgelegt sind. Für dünnere Anschlussschienen kleinerer Nennstromstärken werden Distanzstücke aus Kunststoff verwendet, welche die Zwischenräume füllen. Die Montage der Distanzstükke hat den Nachteil zusätzlicher Kosten für diese Teile sowie höherer Montagekosten und sie bilden eine Fehlerquelle bei einer kundenseitigen Montage der Strombahnen.In the case of low-voltage circuit breakers, it has hitherto been customary within a series to use connecting rails of different thicknesses, depending on the nominal current. These connecting rails are also made of profiles by sawing. The housing has uniform cutouts for the connection rails, which are each designed for the largest rated current. For thinner connecting rails of smaller rated currents, plastic spacers are used, which fill the gaps. The mounting of the Distanzstükke has the disadvantage of additional costs for these parts and higher installation costs and they form a source of error in a customer installation of the current paths.
In allen diesen bekannten elektrischen Geräten und Apparaten sind die Anschlussschienen, unabhängig von der sonstigen Herstellungstechnologie aus massivem Material hergestellt. Das bedingt, dass die Schienen für unterschiedliche Stromstärken auch unterschiedliche Querschnitte aufweisen und somit unterschiedliche äußere Abmessungen; ein Nachteil, der vorstehend bereits behandelt wurde.In all these known electrical devices and apparatus, the connection bars, regardless of the other manufacturing technology made of solid material. This requires that the rails for different currents also have different cross-sections and thus different external dimensions; a disadvantage that has already been dealt with above.
Hohle stromführende Leiter sind aus der Hochspannungs- und Hochfrequenztechnik bekannt. Bei diesen Hohlleitern dient die hohle Ausbildung lediglich dem Zweck die Koronaverluste der Leiter, also der Abstrahlung von Energie an scharfen Kanten oder engen Radien zu verringern, beziehungsweise dem Skineffekt Rechnung zu tragen, der darauf beruht, dass bei hohen Frequenzen nur im äußeren Bereich eines Leiters Energie übertragen wird, aber nicht dem Zweck, eine unterschiedliche strommäßige Belastbarkeit bei einem einheitlichem äußeren Querschnitt zu gewährleisten.Hollow current-carrying conductors are known from high-voltage and high-frequency engineering. In these waveguides, the hollow design serves only the purpose of reducing the corona losses of the conductors, ie the radiation of energy at sharp edges or narrow radii, or to take into account the skin effect, which is based on the fact that at high frequencies only in the outer region of a conductor Energy is transmitted, but not for the purpose of ensuring a different current-carrying capacity with a uniform outer cross-section.
Eine stromführende hohle Anordnung ist auch in der US-PS 3,597,713 beschrieben, die ein Gerät als Ersatz für eine Hochspannungs-Schmelzsicherung zeigt, in dem eine Kombination eines Vakuumschalters mit einem Schaltgriff, der, ähnlich wie ein Hoch- oder Mittelspannungstrennschalter eine Öse zur Betätigung aufweist, dargestellt ist. In einem hohlen Anschlussstück des Gerätes ist eine elektronische Schaltung eingebaut. Damit ist zwar ein stromführendes hohles Teil an einem elektrischen Schaltgerät bekannt geworden, aber dieses dient lediglich der Unterbringung einer anderen Komponente des Gerätes, nämlich der genannten elektronischen Schaltung und nicht der Regulierung der Stromtragfähigkeit des Bauteils.A current-carrying hollow arrangement is also described in US-PS 3,597,713, which shows a device as a replacement for a high-voltage fuse, in which a combination of a vacuum switch with a handle, which, similar to a high or medium voltage circuit breaker an eyelet for actuation, is shown. In a hollow connector of the device, an electronic circuit is installed. Thus, although a current-carrying hollow part of an electrical switching device has become known, but this serves only to accommodate another component of the device, namely said electronic circuit and not the regulation of the current carrying capacity of the device.
An anderer Stelle wurde bereits vorgeschlagen, hohle Anschlussschienen für Niederspannungs-Leistungsschalter zu verwenden, die aus einem hohlen Profilmaterial durch Absägen hergestellt sind und sowohl nur einen, als auch mehrere Hohlräume aufweisen können. Dabei weisen diese Anschlussschienen für alle unterschiedlichen Stromstärken den gleichen äußeren Querschnitt auf. Die Stromtragfähigkeit wird mittels der Wandstärke der Hohlschiene reguliert, die den leitenden, stromtragenden Querschnitt bildet. Daraus ergibt sich, dass bei niedrigeren Stromstärken durch geringe Wandstärken ein größerer, beziehungsweise bei höheren Stromstärken durch dikkere Wandstärken ein kleinerer innerer Hohlraum vorhanden ist, was bis hin zu einer massiven Ausgestaltung ohne Hohlraum, bei der höchsten Bemessungsstromstärke, führen kann. Auf die für diese höchste Bemessungsstromstärke erforderlichen äußeren Abmessungen sind dann die Durchführungsöffnungen in den jeweiligen Geräte- und Apparategehäusen ausgelegt. Die Herstellung derartiger Hohlprofile aus einigen für die Herstellung von derartigen Anschlussschienen bevorzugt verwendeter Werkstoffe ist jedoch mit erheblichen Schwierigkeiten verbunden.Elsewhere it has already been proposed to use hollow connection bars for low-voltage circuit breakers which are made from a hollow profiled material by sawing and which can have both one and more cavities. These connection bars have the same outer cross section for all different current intensities. The current carrying capacity is regulated by means of the wall thickness of the hollow rail, which forms the conductive, current-carrying cross-section. It follows that at lower currents by small wall thicknesses, a larger, or at higher currents by thicker wall thicknesses a smaller inner cavity is present, which can lead to a massive design without a cavity, at the highest rated current. On the external dimensions required for this highest rated current then the lead-through openings are designed in the respective equipment and apparatus housings. However, the production of such hollow profiles from some preferably used for the production of such connecting rails materials is associated with considerable difficulties.
Die Aufgabe der vorliegenden Erfindung besteht deshalb darin, hohle Anschlussschienen so auszubilden, dass sie auch bei unterschiedlichen Nennstromwerten den gleichen äußeren Querschnitt aufweisen und ohne zusätzliche Distanzstücke in Geräte- und Apparategehäusen mit einheitlichen Durchgangsöffnungen eingesetzt werden können, dabei jedoch die Probleme bei der Herstellung hohler Halbzeugprofile zu vermeiden.Therefore, the object of the present invention is to design hollow connection rails in such a way that they have the same outer cross-section even with different nominal current values and without additional spacers in device and apparatus housings with uniform passage openings can be used, but to avoid the problems in the production of hollow semi-finished profiles.
Diese Aufgabe wird gemäß der vorliegenden Erfindung dadurch gelöst, dass die Hohlheit der Anschlussschiene dadurch hervorgerufen wird, dass sie aus zwei oder mehreren als Profile ausgebildeten Teilstücken besteht, die so ausgebildet sind, dass sie formschlüssig oder anderweitig miteinander zu einer hohlen Anschlussschiene verbindbar sind. Derartige Teilprofile lassen sich leicht und ohne die bei der Herstellung von Hohlprofilen auftretenden Probleme fertigen. Vorzugsweise ist die Anschlussschiene aus zwei profilförmigen Teilstücken zusammengesetzt, von denen das erste Teilstück das Oberteil der Anschlussschiene bildet und das zweite Teilstück das Unterteil derselben. Dadurch ergeben sich ebene obere und untere Schienenflächen, was insbesondere im Hinblick auf eine Verwendung für Einschubschalter wichtig ist, um ein einwandfreies Gleiten in die Einschublamellenkontakte zu erreichen. Die Teilstücke weisen einen oder mehrere Schenkel auf, deren Längen die Höhe der Anschlussschiene bestimmen. Hierdurch wird erreicht, dass die Anschlussschienen für alle Stromstärken die gleichen Außenabmessungen aufweisen, die den einheitlichen Maßen der Durchführungsfenster in der Rückwand des Niederspannungs-Leistungsschalters entsprechen. Die Stromtragfähigkeit der Anschlussschiene wird dabei durch die Dicke des Materials bestimmt.This object is achieved according to the present invention in that the hollowness of the connecting rail is caused by the fact that it consists of two or more sections formed as profiles, which are formed so that they are positively or otherwise connectable to each other to a hollow connecting rail. Such sub-profiles can be easily and without the problems occurring in the production of hollow profiles finished. Preferably, the connecting rail is composed of two profile-shaped sections, of which the first part forms the upper part of the connecting rail and the second part forms the lower part of the same. This results in flat upper and lower rail surfaces, which is particularly important in terms of use for slide-in switch to achieve proper sliding into the Einschublamellenkontakte. The sections have one or more legs whose lengths determine the height of the connecting rail. This ensures that the connection bars for all currents have the same external dimensions that correspond to the uniform dimensions of the feed-through window in the rear wall of the low-voltage circuit breaker. The current carrying capacity of the connecting rail is determined by the thickness of the material.
Zweckmäßig sind ein oder mehrere Schenkel des jeweils einen Teilstückes mit Verbindungselementen versehen, die in Gegenelemente des jeweils anderen Teilstücks formschlüssig eingreifen.Suitably, one or more legs of the respective one section are provided with connecting elements which engage positively in counter-elements of the respective other section.
Vorteilhaft sind die drei Schenkel vorgesehen, von denen zwei an einem Teilstück angeordnet sind und einer am anderen Teilstück. Hierdurch ergibt sich eine einfachere Fertigung für die Teilstücke, als wenn alle Schenkel an einem Teilstück angeordnet wären. Die Teilstücke sind durch eine oder mehrere formschlüssige Verbindungen und/oder teilweise durch Löten, Schweißen oder ähnliches miteinander verbunden. Erforderliche Bohrungen zur Befestigung der anlagenseitigen Stromschienen werden vorteilhaft gestanzt.Advantageously, the three legs are provided, two of which are arranged on a section and one on the other section. This results in a simpler manufacturing for the sections, as if all legs would be arranged on a section. The cuts are by one or more positive connections and / or partially connected by soldering, welding or the like. Required holes for fixing the system side busbars are advantageously punched.
Die Erfindung soll nachfolgend zum besseren Verständnis anhand eines bevorzugten, den Schutzumfang nicht einschränkenden Ausführungsbeispiels näher erläutert werden.The invention will be explained in the following for better understanding with reference to a preferred, non-limiting scope of the invention embodiment.
Die Fig. 1 zeigt schematisch einen Niederspannungs-Leistungsschalter im Schnitt.Fig. 1 shows schematically a low-voltage circuit breaker in section.
Die Fig. 2 zeigt eine mögliche vorteilhafte Ausführungsform einer unteren Anschlussschiene gemäß der vorliegenden Erfindung im Schnitt.Fig. 2 shows a possible advantageous embodiment of a lower connecting rail according to the present invention in section.
Die Fig. 3 zeigt die Anschlussschiene gemäß der Fig.2 im Zustand vor dem Zusammenfügen der Teilstücke in perspektivischer Darstellung.FIG. 3 shows the connecting rail according to FIG. 2 in the state before the parts are assembled in a perspective view.
Die Fig. 4 zeigt die Anschlussschiene der Fig.2 nach dem Zusammenfügen der Teilstücke in perspektivischer Darstellung.Fig. 4 shows the connecting rail of Figure 2 after joining the sections in perspective view.
In der Fig. 1 ist schematisch ein Niederspannungs-Leistungsschalter 1 im Schnitt dargestellt. Durch die Rückwand 2 des Niederspannungs-Leistungsschalters 1 sind die in herkömmlicher Form dargestellte obere Anschlussschiene 3 und die in erfindungsgemäßer Ausführungsform dargestellte, durch den Stromwandler 6 hindurchgeführte, untere Anschlussschiene 4 herausgeführt. An der oberen Anschlussschiene 3 befindet sich der feste Schaltkontakt 5 und an der unteren Anschlussschiene 4 ist über nicht dargestellte flexible Verbindungen der auf einem, mit dem Schalterantrieb 8 verbundenen, Kontaktträger 9 befindliche bewegbare Schaltkontakt 10 angeschlossen. Über dem festen Schaltkontakt 5 und dem bewegbaren Schaltkontakt 10 ist die Lichtbogenlöschkammer 7 angeordnet.In Fig. 1, a low-voltage circuit breaker 1 is shown schematically in section. Through the
Die Fig. 2 zeigt eine mögliche vorteilhafte Ausführungsform einer unteren Anschlussschiene 4 gemäß der vorliegenden Erfindung in der Seitenansicht. Sie besteht aus einem profilförmigen oberen Teilstück 11 und einem ebenfalls profilförmigen unteren Teilstück 12. Diese sind durch einen am oberen Teilstück 11 vorgesehenen Steg 13 mit einem an dessen Ende befindlichen Quersteg 14 und einer am unteren Teilstück 12 vorgesehenen Führungsschiene 15 durch Ineinanderschieben formschlüssig miteinander verbunden. Zusätzlich weist das obere Teilstück 11 einen abgewinkelten Teil 16 auf und das untere Teilstück 12 einen im rechten Winkel angeordneten Teil 17 die beide bezüglich ihrer Abmessungen so ausgebildet sind, dass sie Verbindungsstege zwischen dem oberen Teilstück 11 und dem unteren Teilstück 12 bilden, wobei ihre Längen die Höhe der Anschlussschiene 4 bestimmen. An der Berührungsstelle des Teiles 16 mit dem unteren Teilstück 12 und der Berührungsstelle des Teiles 17 mit dem oberen Teilstück 11 sind beide Teilstücke 11,12 zusätzlich zur oben beschriebenen formschlüssigen Verbindung durch Löten, Schweißen oder ähnliches miteinander verbunden.Fig. 2 shows a possible advantageous embodiment of a lower connecting
Mittels der beschriebenen Anordnung wird eine hohle Anschlussschiene 4 geschaffen, die zwei Hohlräume 18, 19 aufweist. Zur Befestigung der anlagenseitigen Stromschienen sind Bohrungen 20, 21, zweckmäßig durch Stanzen hergestellt vorgesehen. Die Fortsätze 22, 23 dienen als Anschläge für eine axiale Fixierung der Anschlussschiene 4 am Schaltergehäuse. In der Fig. 3 ist die Anschlussschiene 4 gemäß der Fig. 2 im Zustand vor dem Zusammenfügen der Teilstücke 11, 12 in perspektivischer Darstellung gezeigt und in der Fig. 4 die gleiche Anschlussschiene 4 nach dem Zusammenfügen der Teilstücke 11, 12, ebenfalls in perspektivischer Darstellung. In diesen Figuren sind gleiche Teile aus der Fig. 2 mit den gleichen Bezugszeichen versehen, weshalb sich eine nochmalige Beschreibung dieser Teile erübrigt. In den beiden Fig. 3 und 4 soll lediglich die Funktion des Stegs 13 mit seinem Quersteg 14 und der Führungsschiene 15 deutlicher veranschaulicht werden. Mittels dieser Elemente wird eine erste Fixierung der beiden Teilstücke 11, 12 erreicht, um eine Löt- oder Schweißverbindung an den anderen, oben erwähnten, Berührungsstellen zu erleichtern.By means of the described arrangement, a hollow connecting
Zur Befestigung der flexiblen Leiterseile, welche die untere Anschlussschiene mit den bewegbaren Schaltkontakten verbinden, sind in einer Verlängerung 24 am oberen Teilstück 11 Aussparungen 25 vorgesehen. Der im rechten Winkel angeordnete Teil 17 des unteren Teilstückes 12 weist einen Fortsatz 26 auf, in welchem ebenfalls Aussparungen 27 vorgesehen sind, die mit den Aussparungen 25 im oberen Teilstück 11 fluchten, damit die oben erwähnten flexiblen Leiterseile in die Aussparungen 25, 27 beider Teilstücke 11, 12 eingeführt werden können. Beim Einlöten oder Einschweißen der Leiterseile werden folglich beide Teilstücke 11,12 mit ihnen elektrisch verbunden und folglich strommäßig gleichmäßig belastet. Die Aussparungen 25; 27 können natürlich auch nach dem Zusammenbau gefräst werden.For attachment of the flexible conductor cables, which connect the lower connecting rail with the movable switching contacts, 11
Der Vorteil dieser erfindungsgemäßen Ausführungsform besteht darin, dass sich diese Teilprofile leicht herstellen lassen. Die Stromtragfähigkeit der Anschlussschiene wird durch die Dicke des Materials bestimmt und nicht durch die äußeren Abmessungen.The advantage of this embodiment according to the invention is that these sub-profiles can be easily produced. The current carrying capacity of the terminal rail is determined by the thickness of the material and not by the external dimensions.
- 11
- Niederspannungs-LeistungsschalterLow-voltage circuit breakers
- 22
- Rückwandrear wall
- 33
- Obere AnschlussschieneUpper connecting rail
- 44
- Untere AnschlussschieneLower connection rail
- 55
- Fester SchaltkontaktFixed switching contact
- 66
- StromwandlerPower converter
- 77
- LichtbogenlöschkammerArc chute
- 88th
- Schalterantriebswitch drive
- 99
- Kontaktträgercontact support
- 1010
- Bewegbarer SchaltkontaktMovable switching contact
- 1111
- Oberes TeilstückUpper section
- 1212
- Unteres TeilstückLower section
- 1313
- Stegweb
- 1414
- Querstegcrosspiece
- 1515
- Führungsschieneguide rail
- 1616
- Abgewinkeltes TeilAngled part
- 1717
- Teilpart
- 1818
- Hohlraumcavity
- 1919
- Hohlraumcavity
- 2020
- Bohrungdrilling
- 2121
- Bohrungdrilling
- 2222
- Fortsatzextension
- 2323
- Fortsatzextension
- 2424
- Verlängerungrenewal
- 2525
- Aussparungrecess
- 2626
- Fortsatzextension
- 2727
- Aussparungrecess
Claims (7)
- Connecting rail for electrical appliances and apparatuses, for different rated currents, with a cavity, produced from profiled semi-finished products, for connection of the electrical components of electrical appliances and apparatuses to an external circuit, with the connecting rails extending through window openings located in the appliance or apparatus wall and being fixed in the housing by attachment means,
characterized
in that the connecting rail comprises two or more piece elements (11, 12) which are in the form of profiles and are designed such that they can be connected to one another in an interlocking manner or in some other way to form a hollow connecting rail (4). - Connecting rail according to Claim 1,
characterized
in that the connecting rail is assembled from two profiled piece elements (11, 12), of which the first piece element (11) forms the upper part of the connecting rail (4) and the second piece element (12) forms the lower part of it. - Connecting rail according to Claim 1,
characterized
in that the piece elements (11, 12) have one or more limbs (13; 16; 17) whose lengths govern the height of the connecting rail (4). - Connecting rail according to Claim 1,
characterized
in that one or more limbs (13) of each piece element (11) are provided with connection elements (14) which engage in an interlocking manner in mating elements (15) on the respective other piece element (12). - Connecting rail according to Claim 1,
characterized
in that three limbs (13; 16; 17) are provided, of which two limbs (13; 16) are arranged on one piece element (11) and one limb (17) is arranged on the other piece element (12). - Connecting rail according to Claim 1,
characterized
in that the piece elements (11, 12) are connected to one another by means of one or more interlocking connections (14, 15) and/or partially by soldering, welding or the like. - Connecting rail according to Claim 1,
characterized
in that holes which are required for attachment of the system-side busbars are stamped.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10032653A DE10032653A1 (en) | 2000-06-28 | 2000-06-28 | Connection rail for electrical devices and apparatus, for different nominal currents, with a cavity |
DE10032653 | 2000-06-28 | ||
PCT/DE2001/002350 WO2002001590A1 (en) | 2000-06-28 | 2001-06-25 | Connecting bars for electrical devices and apparatus for different nominal currents having a cavity |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1297547A1 EP1297547A1 (en) | 2003-04-02 |
EP1297547B1 true EP1297547B1 (en) | 2006-04-12 |
Family
ID=7647864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01984074A Expired - Lifetime EP1297547B1 (en) | 2000-06-28 | 2001-06-25 | Connecting bars for electrical devices and apparatus for different nominal currents having a cavity |
Country Status (7)
Country | Link |
---|---|
US (1) | US6774751B2 (en) |
EP (1) | EP1297547B1 (en) |
JP (1) | JP2004502274A (en) |
CN (1) | CN1225761C (en) |
DE (2) | DE10032653A1 (en) |
HK (1) | HK1056435A1 (en) |
WO (1) | WO2002001590A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009033465A1 (en) | 2009-07-10 | 2011-01-13 | Siemens Aktiengesellschaft | Modular busbar |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9001499B2 (en) * | 2012-02-22 | 2015-04-07 | Eaton Corporation | Jumper for electrically connecting electrical switching apparatus poles, and electrical switching apparatus including the same |
US8809722B2 (en) * | 2012-10-11 | 2014-08-19 | Siemens Industry, Inc. | Circuit breaker with translating electrical contact, circuit breaker electrical contact assemblies, and operational methods |
KR102639357B1 (en) * | 2017-09-11 | 2024-02-23 | 멜퀴세덱 프랜시스퀴니 | Structural devices for use in conductive busbars |
BR102017019390B1 (en) * | 2017-09-11 | 2024-03-05 | Melquisedec Francisquini | PROCESS FOR OBTAINING POWER CONDUCTOR IN CLOSED TUBULAR PROFILE AND BUSBUS IN CLOSED TUBULAR PROFILE |
CN109378170A (en) * | 2018-12-13 | 2019-02-22 | 上海康比利仪表有限公司 | A kind of mutual inductor installation structure |
CN109767859B (en) * | 2019-02-28 | 2021-08-13 | 首瑞(天津)电气设备有限公司 | Section bar bus bar |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3597713A (en) * | 1969-01-03 | 1971-08-03 | Esco Mfg Co | Current responsive circuit breaker with releasable coupling means, and with circuitry means disposed within a hollow terminal |
DE19643607A1 (en) * | 1996-05-13 | 1997-11-20 | Siemens Ag | LV power switch with contact system and connection rails |
DE19939710A1 (en) | 1999-08-18 | 2001-02-22 | Siemens Ag | Connection rails for electrical devices and apparatus for various nominal currents |
-
2000
- 2000-06-28 DE DE10032653A patent/DE10032653A1/en not_active Withdrawn
-
2001
- 2001-06-25 EP EP01984074A patent/EP1297547B1/en not_active Expired - Lifetime
- 2001-06-25 JP JP2002505641A patent/JP2004502274A/en not_active Withdrawn
- 2001-06-25 WO PCT/DE2001/002350 patent/WO2002001590A1/en active IP Right Grant
- 2001-06-25 US US10/312,531 patent/US6774751B2/en not_active Expired - Fee Related
- 2001-06-25 DE DE50109502T patent/DE50109502D1/en not_active Expired - Fee Related
- 2001-06-25 CN CNB018121322A patent/CN1225761C/en not_active Expired - Fee Related
-
2003
- 2003-11-28 HK HK03108716A patent/HK1056435A1/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009033465A1 (en) | 2009-07-10 | 2011-01-13 | Siemens Aktiengesellschaft | Modular busbar |
WO2011003830A2 (en) | 2009-07-10 | 2011-01-13 | Siemens Aktiengesellschaft | Modular busbar |
Also Published As
Publication number | Publication date |
---|---|
EP1297547A1 (en) | 2003-04-02 |
DE10032653A1 (en) | 2002-01-10 |
US20030106785A1 (en) | 2003-06-12 |
US6774751B2 (en) | 2004-08-10 |
WO2002001590A1 (en) | 2002-01-03 |
CN1225761C (en) | 2005-11-02 |
CN1440560A (en) | 2003-09-03 |
JP2004502274A (en) | 2004-01-22 |
HK1056435A1 (en) | 2004-02-13 |
DE50109502D1 (en) | 2006-05-24 |
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