EP1297547A1 - 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

Info

Publication number
EP1297547A1
EP1297547A1 EP01984074A EP01984074A EP1297547A1 EP 1297547 A1 EP1297547 A1 EP 1297547A1 EP 01984074 A EP01984074 A EP 01984074A EP 01984074 A EP01984074 A EP 01984074A EP 1297547 A1 EP1297547 A1 EP 1297547A1
Authority
EP
European Patent Office
Prior art keywords
section
connection rail
connection
legs
cavity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01984074A
Other languages
German (de)
French (fr)
Other versions
EP1297547B1 (en
Inventor
Michael Bach
Michael Sebekow
Guenter Seidler-Stahl
Detlev Schmidt
Ingo Thiede
Sezai Tuerkmen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1297547A1 publication Critical patent/EP1297547A1/en
Application granted granted Critical
Publication of EP1297547B1 publication Critical patent/EP1297547B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • 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

  • Connection rail for electrical devices and apparatus, for different nominal currents, with a cavity
  • the invention relates to connecting rails made from profiled semi-finished products and provided with a cavity for connecting the electrical components of electrical devices and apparatus to an external circuit, the connecting rails extending through window openings in the device or device wall and fixed in the housing by means of fastening means are.
  • Connection rails of this type have been proposed in DE patent application 199 39 710.4.
  • a system-side supply rail or another suitable connecting element for energy supply or dissipation can be connected to the part of a connecting rail which is led out of the housing.
  • the connecting rail is generally fixed in the insulating wall body of a device or apparatus, which is usually realized with the aid of lead-through openings and fastening elements.
  • connection rails must continue to be designed in such a way that they can be produced efficiently and are suitable for performing certain functions. These functions are: current carrying capacity, heat dissipation, an area for connecting supply rails and the absorption and transmission of static and dynamic forces. So it is a strong and dynamic place.
  • connection rails for different currents in a uniform housing with uniform through openings.
  • screws which extend through openings arranged transversely to the longitudinal axis of the connecting rails and for the reception of which a nut thread is generally provided in the wall of the corresponding housing.
  • metallic insert nuts or press-in nuts are used for this in a housing consisting of an insulating material.
  • connecting rails which are sawn off from a profile material with one or more protrusions, in such a way that the connecting rails are inserted through a hole and the protrusion or protrusions of the profile material serve as stops of the connecting rail on the switch housing and thus form the force transfer of the switching forces to the housing.
  • connection rail for a low-voltage circuit breaker, with a molded projection
  • This connecting bar is inserted from inside through the through opening of the housing wall and is supported 'by means of a projection on the housing rear wall.
  • special profiles are used which have a one-piece molded strip, from which pieces are then cut off, which form the connecting rail.
  • connection rails With low-voltage circuit breakers, it has so far been customary within a series to use connection rails of different thicknesses depending on the nominal current.
  • connection rails are also made from profiles by sawing.
  • the housing has uniform cutouts for the connection rails, which are each designed for the largest nominal current.
  • Spacers made of plastic are used for thinner connecting rails with smaller nominal current strengths, which fill the gaps.
  • the assembly of the spacers has the disadvantage of additional costs for these parts as well as higher assembly costs and they form a source of error when the current paths are installed by the customer.
  • the connecting rails are made of solid material, regardless of the other manufacturing technology. This means that the rails also have different cross sections for different current strengths 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 technology. With these waveguides, the hollow design serves only the purpose of reducing the corona losses of the conductors, i.e. 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 area of a conductor Energy is transmitted, but not the purpose of a different current-carrying capacity with a uniform exterior
  • a current-carrying hollow arrangement is also described in US Pat. No. 3,597,713, which shows a device as a replacement for a high-voltage fuse, in which a combination of a vacuum switch and a switching handle, which, similar to a high or medium-voltage isolating switch, has an eyelet for actuation, is shown.
  • An electronic circuit is built into a hollow connector of the device.
  • hollow connecting rails for low-voltage circuit breakers, which are made from a hollow profile material by sawing and can have only one or more cavities.
  • These connection rails have the same outer cross-section for all different current strengths.
  • the current carrying capacity is regulated by means of the wall thickness of the hollow rail, which forms the conductive, current carrying cross section. This means that there is a larger inner cavity at lower currents due to small wall thicknesses, and a smaller inner cavity at higher current intensities due to thicker wall thicknesses, which can lead to a massive design without a cavity at the highest rated current.
  • the feedthrough openings in the respective device and apparatus housings are then designed for the external dimensions required for this highest rated current.
  • the production of such hollow profiles from some materials that are preferably used for the production of such connecting rails is associated with considerable difficulties.
  • the object of the present invention is therefore to design hollow connecting rails so that they have the same outer cross section even at different nominal current values and without additional spacers in device and apparatus housings with uniform through openings. gene can be used, but 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 which are designed as profiles and are designed in such a way that they can be positively or otherwise connected to one another to form a hollow connecting rail.
  • Such partial profiles can be easily and without the in the manufacture of
  • the connecting rail is preferably composed of two profile-shaped sections, of which the first section forms the upper part of the connecting rail and the second section the lower part thereof. This results in flat upper and lower rail surfaces, which is particularly important with regard to use for slide-in switches in order to achieve perfect sliding into the slide-in blade contacts.
  • the sections have one or more legs, the lengths of which determine the height of the connecting rail. This ensures that the connection rails have the same external dimensions for all currents, which correspond to the uniform dimensions of the lead-through windows in the rear wall of the low-voltage circuit breaker.
  • the current carrying capacity of the connection rail is determined by the thickness of the material.
  • One or more legs of the one in each case are expedient
  • the three legs are advantageously provided, two of which are arranged on one section and one on the other section. This results in a simpler manufacture for the sections than if all the legs were arranged on one section.
  • the sections are by one or more positive connections and / or partially connected by soldering, welding or the like. Required holes for fastening the system-side busbars are advantageously punched.
  • FIG. 1 schematically shows a low-voltage circuit breaker in section.
  • FIG. 2 shows a possible advantageous embodiment of a lower connecting bar according to the present invention in section.
  • FIG. 3 shows the connection rail according to FIG. 2 in the state before the parts are joined together in a perspective view.
  • FIG. 4 shows the connecting rail of FIG. 2 after the parts have been joined together in a perspective view.
  • a low-voltage power switch 1 is shown schematically in section.
  • the upper connecting bar 3 shown in conventional form, and the lower connecting bar 4, shown in the embodiment according to the invention and led through the current transformer 6, are led out.
  • the fixed switching contact 5 is located on the upper connecting rail 3 and the movable switching contact 10 located on a contact carrier 9 connected to the switch drive 8 is connected to the lower connecting rail 4 via flexible connections (not shown).
  • the arc extinguishing chamber 7 is arranged above the fixed switching contact 5 and the movable switching contact 10.
  • FIG. 2 shows a possible advantageous embodiment of a lower connecting bar 4 according to the present invention in a side view.
  • both parts 11, 12 are connected to one another in addition to the positive connection described above by soldering, welding or the like.
  • a hollow connecting rail 4 is created, which has two cavities 18, 19. Bores 20, 21, expediently produced by stamping, are provided for fastening the conductor rails on the installation side.
  • the extensions 22, 23 serve as stops for axially fixing the connecting bar 4 to the switch housing.
  • 3 shows the connecting rail 4 according to FIG. 2 in the state before the parts 11, 12 are joined together in a perspective view
  • FIG. 4 also shows the same connecting rail 4 after the parts 11, 12 are joined together in perspective.
  • the same parts from FIG. 2 are provided with the same reference numerals, which is why a repeated description of these parts is unnecessary.
  • 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. the.
  • a first fixation of the two sections 11, 12 is achieved by means of these elements in order to facilitate a soldered or welded connection at the other contact points mentioned above.
  • recesses 25 are provided in an extension 24 on the upper section 11.
  • the part 17 of the lower section 12 arranged at a right angle has an extension 26, in which recesses 27 are also provided, which are aligned with the recesses 25 in the upper section 11, so that the above-mentioned flexible conductor cables into the recesses 25, 27 of both sections 11, 12 can be introduced.
  • both sections 11, 12 are consequently electrically connected to them and consequently the current is loaded uniformly.
  • the recesses 25; 27 can of course also be milled after assembly.
  • connection rail is determined by the thickness of the material and not by the outer dimensions.

Landscapes

  • Breakers (AREA)
  • Installation Of Bus-Bars (AREA)
  • Non-Insulated Conductors (AREA)
  • Mounting Components In General For Electric Apparatus (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

The invention relates to connecting bars (4) made from profiled semifinished products and having a cavity, said bars having the same outer dimensions for different nominal currents and being intended for connecting the electrical components of electrical devices and apparatus to an external electrical circuit, wherein the connecting bars extend through the window opening located in the wall of the devices or apparatus and are fixed in the housing by fixing means consisting of two or more partial parts (11, 12) embodied as profiles, which are configured in such a way that they can be connected to one another by positive fit or otherwise to a hollow connecting bar (4). The partial parts (11, 12) have one or several legs (13; 16; 17), the length of which defines the height of the connecting bar (4).

Description

Beschreibungdescription
Anschlussschiene für elektrische Geräte und Apparate, für verschiedene Nennströme, mit einem HohlraumConnection rail for electrical devices and apparatus, for different nominal currents, with a cavity
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 An- schlussschienen 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 connecting rails made from profiled semi-finished products and provided with a cavity for connecting the electrical components of electrical devices and apparatus to an external circuit, the connecting rails extending through window openings in the device or device wall and fixed in the housing by means of fastening means are. Connection 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 connecting element for energy supply or dissipation can be connected to the part of a connecting rail which is led out of the housing. The connecting rail is generally fixed in the insulating wall body of a device or apparatus, which is usually realized with the aid of lead-through openings and fastening elements.
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 Über- tragung statischer und dynamischer Kräfte. Es handelt sich also um eine kräftemäßig und dynamisch hoch beanspruchte Stelle.The connection rails must continue to be designed in such a way that they can be produced efficiently and are suitable for performing certain functions. These functions are: current carrying capacity, heat dissipation, an area for connecting supply rails and the absorption and transmission of static and dynamic forces. So it is a strong and dynamic place.
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 her- kömmlichen 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 rails for different currents in a uniform housing with uniform through openings. In the case of conventional 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 a nut thread is generally provided in the wall of the corresponding housing. For reasons of mechanical strength, metallic insert nuts or press-in nuts are used for this in a housing consisting of an insulating material.
Die Herstellung und der Einbau derartiger Anschlussschienen ist folglich mit einem hohen Material- und Fertigungsaufwand verbunden. Es wurde deshalb, zum Beispiel bei Niederspan- nungs-Leistungsschaltern, die Verwendung von Anschlussschienen vorgeschlagen, die von einem Profilmaterial mit einem oder mehreren Vorsprüngen abgesägt sind, derart, dass die An- schlussschienen durch ein Loch gesteckt werden und der oder die Vorsprünge des Profilmaterials als Anschläge der Anschlussschiene am Schaltergehäuse dienen und somit die Kraft- Überleitung der Schaltkräfte auf das Gehäuse bilden.The manufacture and installation of such connecting rails is consequently associated with a high outlay in terms of material and production. It has therefore been proposed, for example in the case of low-voltage circuit breakers, to use connecting rails which are sawn off from a profile material with one or more protrusions, in such a way that the connecting rails are inserted through a hole and the protrusion or protrusions of the profile material serve as stops of the connecting rail on the switch housing and thus form the force transfer of the switching forces to the housing.
Damit ist bei derartigen Schaltern einmal die Position desThis is the position of the switch
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.Fixed contact to the housing is determined and secondly, the fastening point is relieved of the forces mentioned, so that only a fixing force is required here, but a load due to the shear 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 AI 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 ange- formte Leiste aufweisen, von denen dann Stücke abgeschnitten werden, welche die Anschlussschiene bilden. 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 Distanzstük- ke hat den Nachteil zusätzlicher Kosten für diese Teile sowie höherer Montagekosten und sie bilden eine Fehlerquelle bei einer kundenseitigen Montage der Strombahnen.Such a connecting rail for a low-voltage circuit breaker, with a molded projection, has been proposed in DE 196 43 607 AI to overcome the aforementioned effort. This connecting bar is inserted from inside through the through opening of the housing wall and is supported 'by means of a projection on the housing rear wall. To produce this connecting rail, special profiles are used which have a one-piece molded strip, from which pieces are then cut off, which form the connecting rail. With low-voltage circuit breakers, it has so far been customary within a series to use connection rails of different thicknesses depending on the nominal current. These connecting rails are also made from profiles by sawing. The housing has uniform cutouts for the connection rails, which are each designed for the largest nominal current. Spacers made of plastic are used for thinner connecting rails with smaller nominal current strengths, which fill the gaps. The assembly of the spacers has the disadvantage of additional costs for these parts as well as higher assembly costs and they form a source of error when the current paths are installed by the customer.
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 apparatuses, the connecting rails are made of solid material, regardless of the other manufacturing technology. This means that the rails also have different cross sections for different current strengths 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 äußerenHollow current-carrying conductors are known from high-voltage and high-frequency technology. With these waveguides, the hollow design serves only the purpose of reducing the corona losses of the conductors, i.e. 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 area of a conductor Energy is transmitted, but not the purpose of a different current-carrying capacity with a uniform exterior
Querschnitt zu gewährleisten.To ensure cross-section.
Eine stromführende hohle Anordnung ist auch in der US-PS 3,597,713 beschrieben, die ein Gerät als Ersatz für ei- ne 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 Pat. No. 3,597,713, which shows a device as a replacement for a high-voltage fuse, in which a combination of a vacuum switch and a switching handle, which, similar to a high or medium-voltage isolating switch, has an eyelet for actuation, is shown. An electronic circuit is built into a hollow connector of the device. Although a current-carrying hollow part of an electrical switching device has become known, this is only used to accommodate another component of the device, namely the electronic circuit mentioned and not to regulate the current carrying capacity of the component.
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 dik- kere 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 erforderli- chen 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 connecting rails for low-voltage circuit breakers, which are made from a hollow profile material by sawing and can have only one or more cavities. These connection rails have the same outer cross-section for all different current strengths. The current carrying capacity is regulated by means of the wall thickness of the hollow rail, which forms the conductive, current carrying cross section. This means that there is a larger inner cavity at lower currents due to small wall thicknesses, and a smaller inner cavity at higher current intensities due to thicker wall thicknesses, which can lead to a massive design without a cavity at the highest rated current. The feedthrough openings in the respective device and apparatus housings are then designed for the external dimensions required for this highest rated current. However, the production of such hollow profiles from some materials that are preferably used for the production of such connecting rails 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 Quer- schnitt aufweisen und ohne zusätzliche Distanzstücke in Geräte- und Apparategehäusen mit einheitlichen Durchgangsöffnun- gen eingesetzt werden können, dabei jedoch die Probleme bei der Herstellung hohler Halbzeugprofile zu vermeiden.The object of the present invention is therefore to design hollow connecting rails so that they have the same outer cross section even at different nominal current values and without additional spacers in device and apparatus housings with uniform through openings. gene can be used, but 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 Teilprofi- le lassen sich leicht und ohne die bei der Herstellung vonThis 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 which are designed as profiles and are designed in such a way that they can be positively or otherwise connected to one another to form a hollow connecting rail. Such partial profiles can be easily and without the in the manufacture of
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 Unter- teil 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 Län- gen 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 Nie- derspannungs-Leistungsschalters entsprechen. Die Stromtragfä- higkeit der Anschlussschiene wird dabei durch die Dicke des Materials bestimmt.Problems that arise with hollow profiles. The connecting rail is preferably composed of two profile-shaped sections, of which the first section forms the upper part of the connecting rail and the second section the lower part thereof. This results in flat upper and lower rail surfaces, which is particularly important with regard to use for slide-in switches in order to achieve perfect sliding into the slide-in blade contacts. The sections have one or more legs, the lengths of which determine the height of the connecting rail. This ensures that the connection rails have the same external dimensions for all currents, which correspond to the uniform dimensions of the lead-through windows in the rear wall of the low-voltage circuit breaker. The current carrying capacity of the connection rail is determined by the thickness of the material.
Zweckmäßig sind ein oder mehrere Schenkel des jeweils einenOne or more legs of the one in each case are expedient
Teilstückes mit Verbindungselementen versehen, die in Gegen- elemente des jeweils anderen Teilstücks formschlüssig eingreifen.Provide section with connecting elements that engage in form-fitting manner in counter-elements of the other section.
Vorteilhaft sind die drei Schenkel vorgesehen, von denen zwei an einem Teilstück angeordnet sind und einer am anderen Teil- stück. 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.The three legs are advantageously provided, two of which are arranged on one section and one on the other section. This results in a simpler manufacture for the sections than if all the legs were arranged on one section. The sections are by one or more positive connections and / or partially connected by soldering, welding or the like. Required holes for fastening 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.For a better understanding, the invention will be explained in more detail below with the aid of a preferred exemplary embodiment which does not restrict the scope of protection.
Die Fig. 1 zeigt schematisch einen Niederspannungs-Leistungs- schalter im Schnitt .1 schematically shows a low-voltage circuit breaker in section.
Die Fig. 2 zeigt eine mögliche vorteilhafte Ausführungsform einer unteren Anschlussschiene gemäß der vorliegenden Erfin- düng im Schnitt.2 shows a possible advantageous embodiment of a lower connecting bar 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 connection rail according to FIG. 2 in the state before the parts are joined together in a perspective view.
Die Fig. 4 zeigt die Anschlussschiene der Fig.2 nach dem Zusammenfügen der Teilstücke in perspektivischer Darstellung.4 shows the connecting rail of FIG. 2 after the parts have been joined together in a perspective view.
In der Fig. 1 ist schematisch ein Niederspannungs-Leistungs- Schalter 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 Ausführung form 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. Die Fig. 2 zeigt eine mögliche vorteilhafte Ausführungsform einer unteren Anschlussschiene 4 gemäß der vorliegenden Erfindung in der Seitenansicht. Sie besteht aus einem profil- förmigen oberen Teilstück 11 und einem ebenfalls profilförmi- gen 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 ähnli- ches miteinander verbunden.In Fig. 1, a low-voltage power switch 1 is shown schematically in section. Through the rear wall 2 of the low-voltage circuit breaker 1, the upper connecting bar 3, shown in conventional form, and the lower connecting bar 4, shown in the embodiment according to the invention and led through the current transformer 6, are led out. The fixed switching contact 5 is located on the upper connecting rail 3 and the movable switching contact 10 located on a contact carrier 9 connected to the switch drive 8 is connected to the lower connecting rail 4 via flexible connections (not shown). The arc extinguishing chamber 7 is arranged above the fixed switching contact 5 and the movable switching contact 10. FIG. 2 shows a possible advantageous embodiment of a lower connecting bar 4 according to the present invention in a side view. It consists of a profile-shaped upper section 11 and a likewise profile-shaped lower section 12. These are pushed together by a web 13 provided on the upper section 11 with a transverse web 14 located at the end thereof and a guide rail 15 provided on the lower section 12 positively connected. In addition, the upper section 11 has an angled section 16 and the lower section 12 has a section 17 arranged at right angles, both of which are designed with respect to their dimensions so that they form connecting webs between the upper section 11 and the lower section 12, their lengths determine the height of the connecting rail 4. At the point of contact of part 16 with the lower part 12 and the point of contact of part 17 with the upper part 11, both parts 11, 12 are connected to one another in addition to the positive connection described above by soldering, welding or the like.
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 per- spektivischer 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 Be- Schreibung 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 wer- den. 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 arrangement described, a hollow connecting rail 4 is created, which has two cavities 18, 19. Bores 20, 21, expediently produced by stamping, are provided for fastening the conductor rails on the installation side. The extensions 22, 23 serve as stops for axially fixing the connecting bar 4 to the switch housing. 3 shows the connecting rail 4 according to FIG. 2 in the state before the parts 11, 12 are joined together in a perspective view, and FIG. 4 also shows the same connecting rail 4 after the parts 11, 12 are joined together in perspective. In these figures, the same parts from FIG. 2 are provided with the same reference numerals, which is why a repeated description of these parts is unnecessary. 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. the. A first fixation of the two sections 11, 12 is achieved by means of these elements in order to facilitate a soldered or welded connection at the other contact points mentioned above.
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 kön- nen. 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.To attach the flexible conductor cables, which connect the lower connecting rail to the movable switching contacts, recesses 25 are provided in an extension 24 on the upper section 11. The part 17 of the lower section 12 arranged at a right angle has an extension 26, in which recesses 27 are also provided, which are aligned with the recesses 25 in the upper section 11, so that the above-mentioned flexible conductor cables into the recesses 25, 27 of both sections 11, 12 can be introduced. When the conductor ropes are soldered or welded in, both sections 11, 12 are consequently electrically connected to them and consequently the current is loaded uniformly. The recesses 25; 27 can of course also be milled after assembly.
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 Ab- messungen. The advantage of this embodiment according to the invention is that these partial profiles can be produced easily. The current carrying capacity of the connection rail is determined by the thickness of the material and not by the outer dimensions.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Niederspannungs -Leistungsschalter1 low-voltage circuit breaker
2 Rückwand2 rear wall
3 Obere Anschlussschiene3 Upper connection rail
4 Untere Anschlussschiene4 Lower connection rail
5 Fester Schaltkontakt5 Fixed switch contact
6 Stromwandler6 current transformers
7 Lichtbogenlöschkammer7 arc quenching chamber
8 Schalterantrieb8 switch drive
9 Kontaktträger9 contact carrier
10 Bewegbarer Schaltkontakt10 Movable switching contact
11 Oberes Teilstück11 Upper section
12 Unteres Teilstück12 Lower section
13 Steg13 bridge
14 Quersteg14 crossbar
15 Führungsschiene15 guide rail
16 Abgewinkeltes Teil16 Angled part
17 Teil17 part
18 Hohlraum18 cavity
19 Hohlraum 20 Bohrung19 cavity 20 bore
21 Bohrung21 hole
22 Fortsatz22 continuation
23 Fortsatz23 extension
24 Verlängerung24 extension
25 Aussparung25 recess
26 Fortsatz26 extension
27 Aussparung 27 recess

Claims

Patentansprüche claims
1. Anschlussschiene für elektrische Geräte und Apparate, für verschiedene Nennströme, mit einem Hohlraum, hergestellt aus profilierten Halbzeugen, 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 erstrek- ken und durch Befestigungsmittel in dem Gehäuse fixiert sind, d a d u r c h g e k e n n z e i c h n e t , dass sie aus zwei oder mehreren als Profile ausgebildeten Teilstücken (11, 12) besteht, die so ausgebildet sind, dass sie formschlüssig oder anderweitig miteinander zu einer hohlen Anschlussschiene (4) verbindbar sind.1.Connection rail for electrical devices and apparatus, for different nominal currents, with a cavity, made from profiled semi-finished products, for connecting the electrical components of electrical devices and apparatus to an external circuit, the connection rails extending through window openings in the wall of the device or apparatus - Ken and are fixed by fasteners in the housing, characterized in that it consists of two or more sections (11, 12) formed as profiles, which are designed so that they can be positively or otherwise connected to each other to form a hollow connecting rail (4) ,
2. Anschlussschiene nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass sie aus zwei profilförmigen Teilstücken (11, 12) zusammengesetzt ist, von denen das erste Teilstück (11) das Ober- teil der Anschlussschiene (4) bildet und das zweite Teilstück (12) das Unterteil derselben.2. Connection rail according to claim 1, characterized in that it is composed of two profile-shaped sections (11, 12), of which the first section (11) forms the upper part of the connection rail (4) and the second section (12) the lower part the same.
3. Anschlussschiene nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass die Teilstücke (11,12) einen oder mehrere Schenkel (13; 16; 17) aufweisen, deren Längen die Höhe der Anschlussschiene (4) bestimmen.3. Connection rail according to claim 1, so that the sections (11, 12) have one or more legs (13; 16; 17), the lengths of which determine the height of the connection rail (4).
4. Anschlussschiene nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass ein oder mehrere Schenkel (13) des jeweils einen Teil- stücks (11) mit Verbindungselementen (14) versehen ist, die in Gegenelemente (15) des jeweils anderen Teilstücks (12) formschlüssig eingreifen.4. Connection rail according to claim 1, so that one or more legs (13) of the one section (11) is provided with connecting elements (14) which engage in mating elements (15) of the other section (12) in a form-fitting manner.
5. Anschluss schiene nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t dass drei Schenkel (13; 16; 17) vorgesehen sind, von denen zwei Schenkel (13; 16) an einem Teilstück (11) angeordnet sind und ein Schenkel (17) am anderen Teilstück (12) .5. Connection rail according to claim 1, characterized that three legs (13; 16; 17) are provided, of which two legs (13; 16) are arranged on one section (11) and one leg (17) on the other section (12).
6. Anschlussschiene nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass die Teilstücke (11, 12) durch eine oder mehrere formschlüssige Verbindungen (14, 15) und/oder teilweise durch Löten, Schweißen oder ähnliches miteinander verbunden sind.6. Connection rail according to claim 1, so that the parts (11, 12) are connected to one another by one or more form-fitting connections (14, 15) and / or partially by soldering, welding or the like.
7. Anschlussschiene nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass erforderliche Bohrungen zur Befestigung der anlagensei- tigen Stromschienen gestanzt sind. 7. Connection rail according to claim 1, so that the necessary bores for fastening the system-side busbars are punched out.
EP01984074A 2000-06-28 2001-06-25 Connecting bars for electrical devices and apparatus for different nominal currents having a cavity Expired - Lifetime EP1297547B1 (en)

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

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EP1297547A1 true EP1297547A1 (en) 2003-04-02
EP1297547B1 EP1297547B1 (en) 2006-04-12

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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)

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DE102009033465A1 (en) 2009-07-10 2011-01-13 Siemens Aktiengesellschaft Modular busbar
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
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
CN111602210B (en) * 2017-09-11 2021-11-09 梅尔基塞德克·弗朗西斯奎尼 Structural device for bus bar
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

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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

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Title
See references of WO0201590A1 *

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US6774751B2 (en) 2004-08-10
CN1440560A (en) 2003-09-03
DE50109502D1 (en) 2006-05-24
WO2002001590A1 (en) 2002-01-03
EP1297547B1 (en) 2006-04-12
HK1056435A1 (en) 2004-02-13
DE10032653A1 (en) 2002-01-10
JP2004502274A (en) 2004-01-22
US20030106785A1 (en) 2003-06-12
CN1225761C (en) 2005-11-02

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