EP0637099B1 - Rail-mounted terminal assembly with overvoltage protection devices - Google Patents
Rail-mounted terminal assembly with overvoltage protection devices Download PDFInfo
- Publication number
- EP0637099B1 EP0637099B1 EP94106796A EP94106796A EP0637099B1 EP 0637099 B1 EP0637099 B1 EP 0637099B1 EP 94106796 A EP94106796 A EP 94106796A EP 94106796 A EP94106796 A EP 94106796A EP 0637099 B1 EP0637099 B1 EP 0637099B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- overvoltage protection
- bus bar
- modular
- spring
- 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.)
- Expired - Lifetime
Links
- 239000011810 insulating material Substances 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 description 12
- 239000004020 conductor Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000001012 protector Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005226 mechanical processes and functions Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
- H01R9/24—Terminal blocks
- H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
- H01R9/2625—Clip-on terminal blocks for side-by-side rail- or strip-mounting with built-in electrical component
- H01R9/2641—Clip-on terminal blocks for side-by-side rail- or strip-mounting with built-in electrical component with built-in overvoltage protection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6666—Structural association with built-in electrical component with built-in electronic circuit with built-in overvoltage protection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S439/00—Electrical connectors
- Y10S439/922—Telephone switchboard protector
Definitions
- the invention relates to a terminal block arrangement consisting of two or more Terminal blocks with inserted surge protection devices and one across the side-by-side terminal blocks running in the direction of their connection, a busbar carrying a ground potential, being a contact element of each surge protective device electrically with the busbar and a additional contact element of each surge protective device electrically a busbar is connected in the respective terminal block.
- Such terminal block arrangements are used, for example, in control cabinets sensitive electronic components from being destroyed by those occurring in the line network Protect overvoltage pulses. When such surges occur these become an existing one with the help of the surge protection device Grounding potential supplied, the surge protective device unusable is, so that a harmful influence on those connected to the terminal block electrical and electronic components is excluded.
- the present invention has for its object a terminal block arrangement of the generic type to create the low manufacturing costs has particularly favorable electrical properties due to its structure.
- each the busbar and the busbars Contact terminal blocks electrically and directly to generate the mechanical Contact force spring elements are provided which have a U-shaped base and two opposing spring legs, extended on one side beyond the base body have, which in turn resiliently on the busbar and the busbars are plugged in and with which the contact elements on the busbar and the busbars are pressed on.
- the special spring elements according to the invention are also from the point of view their manufacture and assembly particularly inexpensive. you need no own fasteners and can be used during assembly the terminal blocks are simply inserted into the housing without additional connection work are, in view of the small width of the terminal block so that they are arranged in the longitudinal direction of the busbars in the terminal block housing are.
- Terminal blocks with two such spring elements, a protective element and the Providing a busbar the function of existing terminal blocks in a simple manner can be changed or expanded.
- terminal blocks are usually installed in standard cabinets Support rails are fixed, can be used for the application that these support rails also used as the busbars carrying the ground potential are the contacting by means of a spring element with the then in the Terminal block available, with its conductor rail in one piece electrically conductive perform connected contact foot.
- the terminal block arrangement according to the invention consists of several side by side with the help of locking feet 18 and 19 on one DIN rail 3 fixed terminal blocks 1.
- In the out Plastic-made terminal block housing 10 is one Busbar 4 arranged at both ends with screw connections 12 is provided, to each of which one through the Insertion opening 11 connected conductor connected can be.
- At the top of the terminal block 10 there is a recess that space for a surge 2 offers.
- the surge device 2 e.g. a varistor, has a round, plate-like shape on its The underside is two spaced parallel to each other Contact elements 8 out.
- Below the surge protector 2 is located inside the terminal block housing 10 a busbar 5, which is usually perpendicular to the drawing plane by several on the mounting rail 3 adjacent terminal blocks 1 extends.
- busbar 5 By the arrangement of the busbar 5 is above the busbar 4 it is possible to do this after mounting the terminal blocks e.g. on the Insert the mounting rail 3 into the terminal blocks from above and at Need to be able to remove.
- the busbar 5 is through a cap 15 covered from above with the terminal block housing 10 is locked by a nose 16.
- the two contact elements 8 of the overvoltage protection element 2 are through housing openings 17 in the terminal block housing 10 inserted that a contact element 8, the busbar 5th touched laterally and the other contact element a leg touches the U-shaped busbar 4 in the housing.
- the mechanical contact force between busbar 4, busbar 5 and the respective contact elements 8 is by Spring elements 6 generated. From Figure 2 is the enlarged perspective view of part of the power rail 4, the contact element 8 and the spring element 6 the structure of this spring element illustrates.
- the spring element 6 has a U-shaped base body 20, which engages around the busbar 4 on one side.
- the both legs of the U-shaped base body 20 are one-sided extended upwards and form the spring legs 21 and 22.
- the free ones facing away from the base body and pointing upwards Ends of the spring legs 21 and 22 are convex at their ends arched to each other, so that between the facing each other Surfaces of the spring legs 21 and 22 due to the curvature a smaller distance results than that of the two legs in the area of the base body 20.
- the outer curvatures of the Spring legs 21 and 22 thus form two contact surfaces 23 and 24, between which the side-by-side busbar 4 and a contact element 8 of the surge protection device 2 are pressed against each other.
- the spring elements 6 can be made of metal, but it is the special elastic properties are equally conceivable certain plastics for providing the to use the necessary contact force.
- FIG 3 is a construction variant of a terminal block with surge protection device shown, in which the surge protective device 2 not in a recess on the top of the Terminal block housing 10 is arranged, but laterally is located next to the housing.
- the busbar 4 is in this embodiment also with two terminal connections 12 provided and straight from one side to the other Side of the terminal block housing 10 out.
- the Busbar 4 has a U-shape in the direction of the mounting rail downward bent part 9, one leg of the U-shaped part parallel to horizontal folds 33 of the Support rail 3 is aligned.
- the distance of the fold 33 and the parallel leg of part 9 is dimensioned so that he essentially the distance between the two contact elements 8th corresponds to the surge protection device 2.
- the contact elements 8 are through side openings 35 in the terminal block housing 10 inserted, their ends touch the Top of the fold 33 and the bottom of the leg of part 9, with a spring element at each point of contact 6 is arranged so that the necessary contact forces can be applied by the spring legs 21 and 22.
- This arrangement of the surge protector 2 has in particular the advantage that the in the embodiment of the figure 1 busbar required to conduct the earthing potential can be omitted in the embodiment of Figure 3, if the mounting rail 3 is connected to the ground potential.
- a terminal block is shown in which a Contact element 8 of the surge protector 2 with a Contact foot 30 is electrically connected.
- the contact foot 30 met usually both the mechanical function of the clamping the terminal block on the mounting rail 3 as well an electrical connection to the mounting rail 3, which in this application as the busbar carrying the earth potential serves.
- the contact foot has 30 one at an angle of 90 degrees to the top of the terminal block housing upstanding contact tab 32 which in simpler as from one of the contact elements 8 of the surge protective device 2 is touched laterally.
- the other contact element 8 laterally touches a web 31 extending at an angle from the busbar 4, with the Contact points each have a spring element 6 for providing the Contact force arranged.
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Thermistors And Varistors (AREA)
Abstract
Description
Die Erfindung betrifft eine Reihenklemmenanordnung, bestehend aus zwei oder mehr Reihenklemmen mit eingesetzten Überspannungsschutzorganen und einer quer zu den nebeneinander angeordneten Reihenklemmen in deren Anreihrichtung verlaufenden, ein Erdungspotential führenden Sammelschiene, wobei ein Kontaktelement eines jeden Überspannungsschutzorganes elektrisch mit der Sammelschiene und ein weiteres Kontaktelement eines jeden Überspannungsschutzorganes elektrisch mit einer Stromschiene in der jeweiligen Reihenklemme verbunden ist. Derartige Reihenklemmenanordnungen werden beispielsweise in Schaltschränken eingesetzt, um empfindliche elektronische Bauteile vor einer Zerstörung durch im Leitungsnetz auftretende Uberspannungsimpulse zu schützen. Beim Auftreten solcher Überspannungen werden diese mit Hilfe des Überspannungsschutzorganes einem vorhandenen Erdungspotential zugeführt, wobei das Überspannungsschutzorgan unbrauchbar wird, so daß ein schädlicher Einfluß auf die an der Reihenklemme angeschlossenen elektrischen und elektronischen Bauteile ausgeschlossen ist. Durch die Überspannung verfärben sich die Gehäuse der üblichen Überspannungsschutzorgane, so daß zu erkennen ist, welche Überspannungsschutzorgane dann gegen intakte Überspannungsschutzorgane auszutauschen sind. Aus dem Kartalog der Firma FUJI ELECTRIC, Ausgabe 1988, Katalognr. 88029 S.81, 82 sind Reihenklemmen mit Überspannungsschutzorganen bekannt, bei denen die Kontaktelemente der Überspannungsschutzorgane in Halteelemente eingreifen, die elektrisch leitend sein müssen und die mit der Strom- bzw. der Sammelschiene verbunden sind. Diese Halteelemente haben somit sowohl eine mechanische Haltefunktion wie auch eine elektrische Übertragungsfunktion. Von daher müssen bei der Materialwahl für derartige Bauteile funktionsbedingte Kompromisse eingegangen werden. Ferner treten bei den bekannten Reihenklemmen mehrere elektrische Kontaktübergänge auf, die jeweils mit einem entsprechenden Übergangswiderstand verbunden sind.The invention relates to a terminal block arrangement consisting of two or more Terminal blocks with inserted surge protection devices and one across the side-by-side terminal blocks running in the direction of their connection, a busbar carrying a ground potential, being a contact element of each surge protective device electrically with the busbar and a additional contact element of each surge protective device electrically a busbar is connected in the respective terminal block. Such terminal block arrangements are used, for example, in control cabinets sensitive electronic components from being destroyed by those occurring in the line network Protect overvoltage pulses. When such surges occur these become an existing one with the help of the surge protection device Grounding potential supplied, the surge protective device unusable is, so that a harmful influence on those connected to the terminal block electrical and electronic components is excluded. Through the Overvoltage the housings of the usual surge protection devices change color, so that it can be seen which surge protection devices are then against intact surge protection devices are to be replaced. From the Cartalog der FUJI ELECTRIC, edition 1988, catalog no. 88029 p.81, 82 are terminal blocks known with surge protective devices, in which the contact elements the surge protective devices engage in holding elements that are electrically conductive must be and which are connected to the busbar or busbar. This Holding elements thus have both a mechanical holding function and one electrical transfer function. Therefore, when choosing materials for such Functional compromises are made. Furthermore join the known terminal blocks on several electrical contact transitions, each are connected to a corresponding contact resistance.
Aus der US-A-2 997 685 ist eine elektrische Verbinderanordnung bekannt, die fest montierte Stromschienen aufweist, mit denen Kontaktelemente elektrischer Steckelemente dadurch elektrisch kontaktiert werden, daß U-förmige Federelemente bei der Montage der Anordnung aufgesetzt werden, die die Kontaktkraft für die elektrische Kontaktierung zwischen den Kontaktelementen und den Stromschienen erzeugen. Die U-förmigen Federelemente müssen quer zu den Stromschienen angeordnet werden und sind für ihre Anbringung und Festlegung mit eigenen Befestigungselementen versehen.From US-A-2 997 685 an electrical connector assembly is known which is fixed Has mounted busbars with which contact elements of electrical plug elements be electrically contacted in that U-shaped spring elements in the Assembly of the arrangement can be placed, which is the contact force for the electrical Generate contact between the contact elements and the busbars. The U-shaped spring elements must be arranged across the busbars and are for their attachment and fixing with their own fasteners Mistake.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Reihenklemmenanordnung der gattungsgemäßen Art zu schaffen, die bei niedrigen Herstellungskosten durch ihren Aufbau besonders günstige elektrische Eigenschaften besitzt.The present invention has for its object a terminal block arrangement of the generic type to create the low manufacturing costs has particularly favorable electrical properties due to its structure.
Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Kontaktelemente der Überspannungsschutzorgane jeweils die Sammelschiene und die Stromschienen der Reihenklemmen direkt elektrisch kontaktieren und zur Erzeugung der mechanischen Kontaktkraft Federelemente vorgesehen sind, die einen U-förmigen Grundkörper und zwei sich gegenüberliegende, einseitig über den Grundkörper hinaus verlängerte Federschenkel aufweisen, die ihrerseits federnd auf die Sammelschiene und die Stromschienen aufgesteckt sind und mit denen die Kontaktelemente an die Sammelschiene und die Stromschienen angedrückt sind.The object is achieved in that the contact elements of the Surge protection devices each the busbar and the busbars Contact terminal blocks electrically and directly to generate the mechanical Contact force spring elements are provided which have a U-shaped base and two opposing spring legs, extended on one side beyond the base body have, which in turn resiliently on the busbar and the busbars are plugged in and with which the contact elements on the busbar and the busbars are pressed on.
Durch die direkte Kontaktierung der Kontaktelemente der Überspannungsschutzorgane mit den Stromschienen und der Sammelschiene werden je nach Bauart herkömmlicher Reihenklemmenanordnungen der gattungsgemäßen Art mindestens zwei Stromübergangsstellen mit entsprechenden Stromübergangswiderständen eingespart. Die eingesetzten Federelemente haben nur noch die rein mechanische Funktion, die für einen guten Stromübergang notwendige mechanische Kontaktkraft bereitzustellen. Bei der Materialwahl für die Federelemente kann man sich somit ganz auf optimale Federeigenschaften konzentrieren. Ferner trägt der nicht benötigte Stromdurchfluß durch die Federelemente dazu bei, Alterungserscheinungen des Werkstoffmateriales infolge Erwärmung auszuschließen. Dies ist dort von Bedeutung, wo die Zeitintervalle zwischen einem Austausch von Überspannungeschutzorganen relativ lang sind.Through direct contacting of the contact elements of the surge protective devices with the busbars and busbars, depending on the design, become more conventional Terminal block arrangements of the generic type at least two Current transition points with corresponding current transfer resistances saved. The spring elements used only have a purely mechanical function, to provide the mechanical contact force necessary for a good current transfer. When choosing the material for the spring elements, you can completely focus on optimal spring properties. Furthermore, the one not needed bears Current flow through the spring elements to the aging Exclude material due to heating. This is important there where the time intervals between an exchange of surge protective devices are relatively long.
Die speziellen erfindungsgemäßen Federelemente sind ferner unter dem Gesichtspunkt ihrer Herstellung und ihrer Montage besonders kostengünstig. Sie benötigen keine eigenen Befestigungselemente und können im Rahmen des Zusammenbaus der Reihenklemmen ohne zusätzliche Anschlußarbeiten einfach in das Gehäuse eingesetzt werden, und zwar im Hinblick auf die geringe Baubreite der Reihenklemme so, daß sie in Längsrichtung der Stromschienen im Reihenklemmengehäuse angeordnet sind. Es besteht der weitere Vorteil, daß durch Nachrüsten von Reihenklemmen mit zwei derartigen Federelementen, einem Schutzorgan und dem Vorsehen einer Sammelschiene auf einfache Weise die Funktion vorhandener Reihenklemmen verändert bzw. erweitert werden kann.The special spring elements according to the invention are also from the point of view their manufacture and assembly particularly inexpensive. you need no own fasteners and can be used during assembly the terminal blocks are simply inserted into the housing without additional connection work are, in view of the small width of the terminal block so that they are arranged in the longitudinal direction of the busbars in the terminal block housing are. There is the further advantage that by retrofitting Terminal blocks with two such spring elements, a protective element and the Providing a busbar the function of existing terminal blocks in a simple manner can be changed or expanded.
Weitere Ausgestaltungen des Gegenstandes der Erfindung ergeben sich aus den Merkmalen der Unteransprüche.Further refinements of the subject matter of the invention result from the Features of the subclaims.
Da Reihenklemmen üblicherweise innerhalb von Schaltschränken auf genormten Tragschienen festgelegt sind, läßt sich für den Anwendungsfall, daß diese Tragschienen auch als die das Erdungspotential führenden Sammelschienen verwendet werden, die Kontaktierung mittels eines Federelementes mit dem dann in der Reihenklemme vorhandenen, mit deren Stromschiene einstückig elektrisch leitend verbundenen Kontaktfuß durchführen.Since terminal blocks are usually installed in standard cabinets Support rails are fixed, can be used for the application that these support rails also used as the busbars carrying the ground potential are the contacting by means of a spring element with the then in the Terminal block available, with its conductor rail in one piece electrically conductive perform connected contact foot.
Im folgenden werden anhand der beigefügten Zeichnungen Ausführungsbeispiele des Gegenstandes der Erfindung näher beschrieben.In the following, exemplary embodiments will be described with reference to the accompanying drawings of the subject of the invention described in more detail.
Es zeigen:
- Fig. 1
- einen Querschnitt durch eine Reihenklemme einer erfindungsgemäßen Reihenklemmenanordnung
- Fig. 2
- vergrößerte perspektivische Darstellung eines Stromschienenstücks der Reihenklemme aus Fig. 1 mit eingelegtem Federelement
- Fig. 3
- Beispiel einer erfindungsgemäßen Reihenklemmenanordnung mit direkter Kontaktierung der Tragschiene
- Fig. 4
- eine erfindungsgemäße Reihenklemmenanordnung mit Schutzleiteranschluß
- Fig. 1
- a cross section through a terminal block of a terminal block arrangement according to the invention
- Fig. 2
- enlarged perspective view of a busbar piece of the terminal block from FIG. 1 with inserted spring element
- Fig. 3
- Example of a terminal block arrangement according to the invention with direct contacting of the mounting rail
- Fig. 4
- a terminal block arrangement according to the invention with protective conductor connection
Die erfindungsgemäße Reihenklemmenanordnung besteht aus mehreren
nebeneinander mit Hilfe von Rastfüßen 18 und 19 auf einer
Tragschiene 3 festgelegten Reihenklemmen 1. In dem aus
Kunststoff gefertigten Reihenklemmengehäuse 10 ist eine
Stromschiene 4 angeordnet, die an beiden Enden mit Schraubanschlüssen
12 versehen ist, an die beidseitig je ein durch die
Einführöffnung 11 zugeführter Leiter angeschlossen
werden kann. An der Oberseite des Reihenklemmengehäuses 10
befindet sich eine Ausnehmung, die Platz für ein Überspannungsorgan
2 bietet. Das Überspannungsorgan 2, z.B. ein Varistor,
besitzt eine runde plättchenförmige Gestalt, an seiner
Unterseite stehen zwei im parallelen Abstand zueinander angeordnete
Kontaktelemente 8 hervor. Unterhalb des Überspannungsschutzorgans
2 befindet sich im Innern des Reihenklemmengehäuses
10 eine Sammelschiene 5, die üblicherweise sich
senkrecht zur Zeichenebene durch mehrere auf der Tragschiene
3 nebeneinander angeordnete Reihenklemmen 1 erstreckt. Durch
die Anordnung der Sammelschiene 5 über der Stromschiene 4 ist
es möglich, diese nach Montage der Reihenklemmen z.B auf der
Tragschiene 3 von oben in die Reihenklemmen einsetzen und bei
Bedarf entfernen zu können. Die Sammelschiene 5 ist durch
eine Kappe 15 von oben abgedeckt, die mit dem Reihenklemmengehäuse
10 durch eine Nase 16 verrastet ist.The terminal block arrangement according to the invention consists of several
side by side with the help of locking
Die beiden Kontaktelemente 8 des Überspannungsschutzorgans 2
sind durch Gehäuseöffnungen 17 so in das Reihenklemmengehäuse
10 eingesteckt, daß ein Kontaktelement 8 die Sammelschiene 5
seitlich berührt und das andere Kontaktelement einen Schenkel
der im Gehäuse U-förmig verlaufenden Stromschiene 4 berührt.
Die mechanische Kontaktkraft zwischen Stromschiene 4, Sammelschiene
5 und den jeweiligen Kontaktelementen 8 wird durch
Federelemente 6 erzeugt. Aus Figur 2 ist durch die vergrößerte
perspektivische Darstellung eines Teils der Stromschiene
4, des Kontaktelementes 8 sowie des Federelementes 6
der Aufbau dieses Federelementes verdeutlicht.The two
Das Federelement 6 besitzt einen U-förmig gestalteten Grund
körper 20, der die Stromschiene 4 einseitig umgreift. Die
beiden Schenkel des U-förmigen Grundkörpers 20 sind einseitig
nach oben verlängert und bilden die Federschenkel 21 und 22.
Die dem Grundkörper abgewandten, nach oben gerichteten freien
Enden der Federschenkel 21 und 22 sind an ihrem Ende konvex
zueinander gewölbt, so daß sich zwischen den einander zugewandten
Flächen der Federschenkel 21 und 22 aufgrund der Wölbung
ein geringerer Abstand ergibt als der der beiden Schenkel
im Bereich des Grundkörpers 20. Die Außenwölbungen der
Federschenkel 21 und 22 bilden somit zwei Kontaktflächen 23
und 24, zwischen denen die nebeneinander angeordnete Stromschiene
4 und ein Kontaktelement 8 des überspannungsschutzorgans
2 gegeneinander gedrückt werden. Durch die Tatsache,
daß das äußerste freie Ende des Federschenkels 22, der sich
in direktem Kontakt mit dem Kontaktelement 8 befindet, von
der Stromschiene 4 weg nach außen gewölbt ist, wird bei einem
eventuell notwendigen Auswechseln des überspannungsschutzorgans
2 ein Einschieben des Kontaktelementes 8 zwischen die
Kontaktfläche 23 und die Stromschiene 4 erleichtert. Die Federlemente
6 können aus Metall hergestellt werden, es ist jedoch
ebenso gut denkbar, die besonderen elastischen Eigenschaften
bestimmter Kunststoffe für die Bereitstellung der
notwendigen Kontaktkraft zu nutzen.The
In Figur 3 ist eine Bauvariante einer Reihenklemme mit Überspannungsschutzorgan
dargestellt, bei der das Überspannungsschutzorgan
2 nicht in einer Ausnehmung an der Oberseite des
Reihenklemmengehäuses 10 angeordnet ist, sondern sich seitlich
neben dem Gehäuse befindet. Die Stromschiene 4 ist in
diesem Ausführungsbeispiel ebenfalls mit zwei Klemmenanschlüssen
12 versehen und geradlinig von einer Seite zur andern
Seite des Reihenklemmengehäuses 10 geführt. Die
Stromschiene 4 besitzt einen U-förmig in Richtung der Tragschiene
nach unten gebogenen Teil 9, wobei ein Schenkel des
U-förmigen Teils parallel zu waagerechten Umkantungen 33 der
Tragschiene 3 ausgerichtet ist. Der.Abstand der Umkantung 33
und des parallelen Schenkels des Teils 9 ist so bemessen, daß
er im wesentlichen dem Abstand der beiden Kontaktelemente 8
des Überspannungsschutzorganes 2 entspricht. Die Kontaktelemente
8 sind durch seitliche Öffnungen 35 in das Reihenklemmengehäuse
10 eingeschoben, berühren mit ihren Enden die
Oberseite der Umkantung 33 sowie die Unterseite des Schenkels
des Teiles 9, wobei an jeder Berührungsstelle je ein Federelement
6 so angeordnet ist, daß die notwendige Kontaktkräfte
durch die Federschenkel 21 und 22 aufgebracht werden können.
Diese Anordnung des Überspannungsschutzorganes 2 hat insbesondere
den Vorteil, daß die im Ausführungsbeispiel der Figur
1 notwendige Sammelschiene zur Führung des Erdungspotentials
bei dem Ausführungsbeispiel der Figur 3 entfallen kann, falls
die Tragschiene 3 an das Erdungs-potential angeschlossen ist.In Figure 3 is a construction variant of a terminal block with surge protection device
shown, in which the surge
In Figur 4 ist eine Reihenklemme dargestellt, bei der ein
Kontaktelement 8 des Überspannungschutzorganes 2 mit einem
Kontaktfuß 30 elektrisch verbunden ist. Der Kontaktfuß 30 erfüllt
üblicherweise sowohl die mechanische Funktion der Festklemmung
der Reihenklemme auf der Tragschiene 3 als auch die
einer elektrischen Verbindung mit der Tragschiene 3, die in
diesem Anwendungsfall als die das Erdpotential führende Sammelschiene
dient. Wie die Figur 4 zeigt, besitzt der Kontaktfuß
30 eine im Winkel von 90 Grad zur Oberseite des Reihenklemmengehäuses
hochstehende Kontaktlasche 32, die in einfacher
weise von einem der Kontaktelemente 8 des Überspannungsschutzorganes
2 seitlich berührt wird. Das andere Kontaktelement
8 berührt seitlich einen im Winkel von der Stromschiene 4 abgehenden Steg 31, wobei auch hier an den
Kontaktstellen je ein Federelement 6 zur Bereitstellung der
Kontaktkraft angeordnet.In Figure 4, a terminal block is shown in which a
Claims (4)
- A modular terminal arrangement comprising two or more modular terminals (1) with inserted overvoltage protection members (2) and a bus bar (3, 5) which carries an earth potential and which extends transversely with respect to the juxtaposed modular terminals (1) in the direction in which they are arranged in a row with each other, wherein a contact element (8) of each overvoltage protection member (2) is electrically connected to the bus bar (3, 5) and a further contact element (8) of each overvoltage protection member (2) is electrically connected to the current bar (4) in the respective modular terminal (1), characterised in that the contact elements (8) of the overvoltage protection members (2) respectively directly electrically contact the bus bar (3, 5) and the current bars (4) of the modular terminals (1) and that to produce the mechanical contact force there are provided spring elements (6) which have a U-shaped main body (20) and two mutually oppositely disposed spring limbs (21 and 22) which are extended at one side beyond the main body and which in turn are resiliently fitted on to the bus bar (3, 5) and the current bars (4) and with which the contact elements (8) are pressed against the bus bar (3, 5) and the current bars (4).
- A modular terminal arrangement according to claim 1 characterised in that the spring limbs (21, 22) are curved convexly towards each other at their ends which are remote from the main body (20).
- A modular terminal arrangement according to claim 1 characterised in that the bus bar carrying the earth potential is formed by a carrier bar (3) on which a contact foot (30) of the modular terminal (1) is fixed and a contact element (8) of the overvoltage protection member (2) directly electrically contacts a contact tongue (32) of the contact foot (30) and is pressed resiliently thereagainst by means of the spring element (6).
- A modular terminal arrangement according to claim 1 or claim 2 characterised in that the spring element (6) for producing the contact force between the contact element (8) of the overvoltage protection member (2) and the bus bar (5) is arranged in the connecting plane of the modular terminal (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4325614A DE4325614C2 (en) | 1993-07-30 | 1993-07-30 | Terminal block arrangement with surge protective devices |
| DE4325614 | 1993-07-30 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0637099A2 EP0637099A2 (en) | 1995-02-01 |
| EP0637099A3 EP0637099A3 (en) | 1996-07-03 |
| EP0637099B1 true EP0637099B1 (en) | 1998-03-18 |
Family
ID=6494081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94106796A Expired - Lifetime EP0637099B1 (en) | 1993-07-30 | 1994-04-30 | Rail-mounted terminal assembly with overvoltage protection devices |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5411417A (en) |
| EP (1) | EP0637099B1 (en) |
| AT (1) | ATE164265T1 (en) |
| DE (2) | DE4325614C2 (en) |
| ES (1) | ES2113571T3 (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19537528C2 (en) * | 1995-09-29 | 2000-01-13 | Krone Ag | Connection device for telecommunications and data technology |
| DE9415801U1 (en) * | 1994-10-01 | 1994-12-15 | F. Wieland Elektrische Industrie Gmbh, 96052 Bamberg | Electrical terminal block |
| DE19608517C2 (en) * | 1996-03-05 | 2000-11-09 | Quante Ag | Connection module for telecommunications technology |
| DE29720704U1 (en) | 1997-11-21 | 1998-01-15 | WECO Wester, Ebbinghaus GmbH & Co. KG, 63452 Hanau | Electrical connection terminal |
| US5993267A (en) * | 1998-03-16 | 1999-11-30 | Lin; Y. S. | Terminal block |
| DE29806691U1 (en) | 1998-04-15 | 1998-05-28 | Weidmüller Interface GmbH & Co, 32760 Detmold | Mounting foot for modular housing or clamps |
| DE29901194U1 (en) | 1999-01-25 | 1999-05-20 | Weidmüller Interface GmbH & Co., 32760 Detmold | Bus conductor section for an electrical device |
| DE29913426U1 (en) * | 1999-08-07 | 2000-12-28 | Pepperl & Fuchs GmbH, 68307 Mannheim | Surge protection barrier for protecting electrical components of electrical systems against overvoltages |
| DE29916303U1 (en) | 1999-09-16 | 2001-02-22 | Weidmüller Interface GmbH & Co, 32760 Detmold | Module with coupling elements |
| DE10205238B4 (en) * | 2002-02-08 | 2006-03-23 | Wieland Electric Gmbh | device housing |
| DE10348088B3 (en) * | 2003-10-16 | 2005-01-20 | Moeller Gmbh | Electrical protection switch for switchgear with frame clamps fitted into side arms of 2-part housing cover for switch housing |
| US7011551B2 (en) * | 2004-05-06 | 2006-03-14 | Johansen Arnold W | Electrical terminal block |
| DE202005013056U1 (en) | 2005-08-18 | 2007-01-04 | Weidmüller Interface GmbH & Co. KG | Electrical connection device |
| DE202007005373U1 (en) * | 2007-04-12 | 2008-08-21 | Weidmüller Interface GmbH & Co. KG | Modular terminal block system |
| DE202008003295U1 (en) * | 2008-03-08 | 2009-07-23 | Weidmüller Interface GmbH & Co. KG | Functionally extendable terminal block and module |
| DE102011001715B4 (en) * | 2011-03-31 | 2018-02-01 | Phoenix Contact Gmbh & Co. Kg | Support bracket for shield clamps |
| DE102014103059A1 (en) | 2014-03-07 | 2015-09-10 | Wago Verwaltungsgesellschaft Mbh | terminal |
| USD765039S1 (en) * | 2014-04-16 | 2016-08-30 | Weidmueller Interface Gmbh & Co. Kg | Terminal block |
| DE102014213728A1 (en) * | 2014-07-15 | 2016-01-21 | Phoenix Contact Gmbh & Co. Kg | Modular terminal block system |
| DE102015106031A1 (en) * | 2015-04-20 | 2016-10-20 | Phoenix Contact Gmbh & Co. Kg | Terminal block with external electrical component |
| DE102018109861A1 (en) * | 2018-04-24 | 2019-10-24 | Phoenix Contact Gmbh & Co. Kg | Connector assembly for a terminal block |
| JP7376535B2 (en) * | 2021-06-22 | 2023-11-08 | 矢崎総業株式会社 | Terminal block |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2997685A (en) * | 1956-06-05 | 1961-08-22 | Bryant Electric Co | Electrical connector |
| US3670207A (en) * | 1970-09-25 | 1972-06-13 | William A Seabury | Modular matrix with plug interconnection |
| US3825884A (en) * | 1973-01-22 | 1974-07-23 | Rapid Sa | Electrical connection clip |
| US4159500A (en) * | 1977-11-17 | 1979-06-26 | Reliable Electric Company | Modular line protector |
| DE2816296A1 (en) * | 1978-04-14 | 1979-10-25 | Weco Wester Ebbinghaus & Co | Mains terminal clamp with several clamping sockets - has integral anti-interference element with two terminals for connection to two-sockets (NL 16.10.79) |
| DE3328666C2 (en) * | 1983-08-09 | 1986-08-14 | Phönix Elektrizitätsgesellschaft H. Knümann GmbH & Co KG, 4933 Blomberg | Electrical terminal block |
| DE3512143C1 (en) * | 1985-04-03 | 1986-07-10 | Phönix Elektrizitätsgesellschaft H. Knümann GmbH & Co KG, 4933 Blomberg | Electrical connecting terminal for mounting on a supporting rail |
| NZ216143A (en) * | 1985-06-03 | 1989-04-26 | Adc Telecommunications Inc | Distribution frame wire connection module with insertable overvoltage protector |
| DE3835600A1 (en) * | 1988-10-19 | 1990-05-03 | Wieland Elektrische Industrie | UNIVERSAL MOUNTING FOOT FOR HAT AND G RAILS |
| FR2671671A1 (en) * | 1991-01-10 | 1992-07-17 | Mars Actel | CONNECTION REGULATOR WITH SEMI-INTEGRATED PROTECTIONS. |
-
1993
- 1993-07-30 DE DE4325614A patent/DE4325614C2/en not_active Expired - Fee Related
-
1994
- 1994-04-30 EP EP94106796A patent/EP0637099B1/en not_active Expired - Lifetime
- 1994-04-30 ES ES94106796T patent/ES2113571T3/en not_active Expired - Lifetime
- 1994-04-30 AT AT94106796T patent/ATE164265T1/en not_active IP Right Cessation
- 1994-04-30 DE DE59405453T patent/DE59405453D1/en not_active Expired - Lifetime
- 1994-07-28 US US08/281,618 patent/US5411417A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0637099A3 (en) | 1996-07-03 |
| DE4325614A1 (en) | 1995-02-02 |
| DE4325614C2 (en) | 1995-08-31 |
| ATE164265T1 (en) | 1998-04-15 |
| US5411417A (en) | 1995-05-02 |
| EP0637099A2 (en) | 1995-02-01 |
| DE59405453D1 (en) | 1998-04-23 |
| ES2113571T3 (en) | 1998-05-01 |
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