EP1540773A1 - Connector for a coaxial cable - Google Patents

Connector for a coaxial cable

Info

Publication number
EP1540773A1
EP1540773A1 EP03794918A EP03794918A EP1540773A1 EP 1540773 A1 EP1540773 A1 EP 1540773A1 EP 03794918 A EP03794918 A EP 03794918A EP 03794918 A EP03794918 A EP 03794918A EP 1540773 A1 EP1540773 A1 EP 1540773A1
Authority
EP
European Patent Office
Prior art keywords
coupling
connection area
piece
coupling piece
connection
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
EP03794918A
Other languages
German (de)
French (fr)
Other versions
EP1540773B1 (en
Inventor
Gerhard Zuch
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.)
Areva GmbH
Original Assignee
Framatome ANP GmbH
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 Framatome ANP GmbH filed Critical Framatome ANP GmbH
Publication of EP1540773A1 publication Critical patent/EP1540773A1/en
Application granted granted Critical
Publication of EP1540773B1 publication Critical patent/EP1540773B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H01R13/2421—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using coil springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/20—Connectors or connections adapted for particular applications for testing or measuring purposes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/42—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency comprising impedance matching means or electrical components, e.g. filters or switches
    • H01R24/44—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency comprising impedance matching means or electrical components, e.g. filters or switches comprising impedance matching means

Definitions

  • the invention relates to a coupling for coaxial cables according to the preamble of claim 1.
  • Such a coupling is known for example from EP 0 314 299 A1.
  • Couplings for coaxial cables with spring-loaded connecting elements are also known from the publications US 3, 416, 125, US 4, 012, 105 or US 6, 053, 777.
  • Such a coupling can be important in many industrial applications in which coaxial cables have to be quickly and easily disengaged and coupled together, for example during maintenance work.
  • a coupling can be used in the case of rigid coaxial conductors, such as those used in a nuclear facility or a nuclear power plant for the transmission of electrical signals or pulses.
  • TDR measuring principle time-domain reflectometry
  • the effect of the TDR measuring principle is that an electromagnetic pulse carried in an antenna system is partially reflected when the impedance changes abruptly between, for example, a central conductor of the antenna and a sheathed conductor surrounding it in the manner of a coaxial cable.
  • Such an abrupt change in impedance occurs, for example, where the antenna formed in this way is immersed in a liquid from a gaseous environment, since the impedance depends on the capacitance between the central conductor and the sheathed conductor and thus on the dielectric constant of the medium filling the space between the central conductor and the sheathed conductor depends.
  • One of such in that too depends on the conductor and sheathed conductor filling medium.
  • An electromagnetic pulse supplied to such an antenna, which is immersed in the medium to be monitored, is thus partially reflected on the surface of the medium. Another reflection occurs at the usually short-circuited antenna end.
  • the transit time difference between the pulse reflected at the boundary layer and the pulse reflected at the antenna end can be used as a measure of the position of the boundary layer and thus as a means of determining a characteristic of the position of the boundary layer Position characteristic value can be used, whereby an essentially proportional dependency between the term difference and position characteristic value can be used.
  • rigid coaxial conductors can be used to transmit the electromagnetic pulses between the containment wall and the reactor pressure vessel, in particular in order to ensure the high signal quality required for reliable measurement value acquisition.
  • a coupling device which allows segments of the Coupling the coaxial conductor between the two bushings mentioned quickly and easily.
  • the coupling In order to keep the interference and damping of the electromagnetic pulse in such a system as low as possible at the coupling point, the coupling should meet high requirements.
  • the impedances should be kept constant over the length of the conductor or at least not change discontinuously, so that disturbing reflections on impedance jumps are avoided as best as possible.
  • High-quality electrical contact between conductors connected by the coupling is particularly important for reliable transmission of the electromagnetic pulse.
  • the invention is therefore based on the object of specifying a coupling of the type mentioned above which is both simple and quick to use and which ensures the electrical contact between the coupled coaxial conductors with high reliability.
  • connection head facing the connection area of the second coupling piece is provided with contact fingers which fit into recesses provided for this purpose in the connection area of the second coupling piece, the connection area of the second coupling piece being provided with a contact piece which is suitable for the or each contact finger has an associated connection surface.
  • the invention is based on the consideration that a coupling mechanism for coaxial cables should be easy to operate, that is to say that the cables should be able to be coupled and uncoupled quickly and easily.
  • the electrical contact between the coaxial conductors connected via the coupling should also be particularly intensive during the operation of the system.
  • the coupling is provided with a device which particularly strengthens the contact between the conductors to be coupled.
  • the targeted use of the restoring force of a spring element is provided, the spring being loaded when the two coaxial conductors are coupled together therefore constantly exerts a force favoring the electrical contact on both conductors.
  • connection head In order to be able to guarantee a particularly intimate contact between the connection head and the connection area of the first coupling piece, the connection head is slidably mounted on the connection area of the first coupling piece.
  • the connection head is expediently positioned when the coupling is open in such a way that when the coupling is assembled, the connection area of the first coupling piece moves the connection head toward the connection area of the second coupling piece and thereby tensions the spring element.
  • the resulting restoring force of the spring element consequently leads to a permanent pressing of the connecting head against the first coupling piece and thus to a particularly reliable electrical connection.
  • the contact fingers both center the connection head with respect to the longitudinal axis of the coupling and produce the electrical contact between the connection head and the connection area. Due to the interaction of the contact fingers with the associated recesses and in particular with contact surfaces arranged in them, sufficient contact with the connection area carrying it is ensured at all times even when the connecting head is displaced in the longitudinal direction.
  • the contact fingers of the connection head enclose a contact piece attached to the connection area of the second coupling piece, which serves to ensure the electrical contact between the connection head and the connection area.
  • the contact fingers rest on a larger or smaller surface of the contact piece.
  • the contact piece therefore also has the task of reliably maintaining the electrical contact between the connecting head and the connection area of the second coupling piece, even with a varying length of the spring.
  • the connecting head fits into a recess made in the connection area of the first coupling piece such that it thereby centers itself with respect to the longitudinal axis of the coupling.
  • the shape of the connecting head can in particular be convex and a corresponding concave Insert the recess in the connection area of the first coupling piece, both the connecting head and the recess being rotationally symmetrical about the longitudinal axis of the coupling. This ensures that the connecting head attaches particularly easily to the second coupling piece and that the central axes of both coupling pieces cannot move against each other when coupling together, which can lead to undesirable disturbances in the electromagnetic pulse and can also make it impossible to connect the sheathed conductors to one another.
  • a conical recess in the connection area of the first coupling piece is particularly advantageous, with which a connecting head shaped in the manner of a truncated cone corresponds.
  • a retaining screw is anchored to the connection area of the second coupling piece, holds the connection head at the connection area and prevents the connection head from being completely loosened when the coupling is open.
  • the jacket conductor of each coupling piece is expediently equipped with a mounting flange which allows the coupling pieces to be connected to one another.
  • a circumferential seal is attached between the mounting flanges, which enables a tight closure of the coupling.
  • the secure connection of the two coupling pieces is expediently carried out via a closure element, which allows the two coupling pieces to be held firmly together.
  • a closure element is adapted in shape and contour to that of the mounting flanges and encloses the mounting flanges in the connected state.
  • the closure element is advantageously a clamping ring with a spring clip, which enables particularly simple and quick operation of the coupling.
  • an undesired damping of the electromagnetic pulse can be excluded or at least kept low by the fact that the impedances do not change or change only slightly over the length of the coupling point.
  • the corresponding components, in particular the connection areas and the sheathed conductors surrounding them, are advantageously suitably dimensioned.
  • the advantages achieved by the invention are, in particular, that the use of a spring element in the production of an electrical connection between the central conductors of the coaxial cables provides a particularly simple and quick-to-use coupling, which also ensures that the electrical connection between the coaxial conductors is particularly good is high quality. This enables the coupling to be used even for sensitive measurements that require high signal quality.
  • the coupling is therefore particularly suitable for use on signals for coaxial conductors transmitting TDR measurements in nuclear power plants.
  • FIG. 1 schematically shows a system for monitoring the fill level in a closed reactor pressure vessel
  • FIG. 4 shows in cross section the same sheathed conductor of the coaxial cable with a closure element and a seal.
  • the system 1 according to FIG. 1 is provided for monitoring a medium M within the connected reactor pressure vessel 2 of a nuclear facility.
  • the reactor pressure vessel 2 is arranged inside a containment 4 which is designed to be closed and is only indicated in FIG. 1.
  • the reactor pressure vessel 2 is connected via a signal line 6 is led through a containment 8 through the containment 4, connected to a communication interface 10 of the system 1.
  • water W is held as medium M in the exemplary embodiment of the reactor pressure vessel 2, which serves as the primary coolant of the nuclear plant.
  • the water w is unmixed in the so-called supercooled state.
  • the medium M held in the container 2 thus has a first boundary layer 12 between water W and the phase mixture W, D and a second boundary layer 14 between the phase mixture W, D and the vapor D.
  • a large number of operating parameters are provided for monitoring the operation of the nuclear plant. Among other things, it may be desirable or necessary to monitor the position of the boundary layers 12, 14. For example, the position of the boundary layer 14 can take place via a fill level measurement.
  • the system 1 is provided for the prompt determination and monitoring of positional characteristic values of the boundary layers 12, 14.
  • system 1 is designed to use the so-called TDR measurement principle (time-domain reflectometry).
  • TDR measurement principle time-domain reflectometry
  • a substantially vertical coaxial cable 16 serving as an antenna is provided within the reactor pressure vessel 2.
  • the coaxial cable 16 is led out of the reactor pressure vessel via an electrical feedthrough 18 and connected to the signal line 6.
  • the communication interface 10 connected to the signal line 6 is in turn connected to a pulse generator 20 that generates the electromagnetic pulses and to an evaluation and control unit 22 with an output module 24 and a memory module 26.
  • the evaluation and control unit 22 is also connected to other components required for proper operation, such as an input device.
  • System 1 is specifically geared towards the use of the TDR measuring principle.
  • a particularly high-quality signal transport in the lines provided for this purpose, in particular the signal line 6, is desired.
  • the signal line 6 is in turn designed as a rigid coaxial cable.
  • the signal line 6 is composed of a plurality of coaxial cables 30, 32 which are detachably connected to one another via a coupling 33.
  • the clutch 33 is also specifically designed for this design goal.
  • the coupling 33 produces a particularly intimate electrical contact between the central conductors 34 and 35 of the coaxial cables 30, 32 to be connected, while being easy to operate overall.
  • the coaxial cable 30 and the coaxial cable 32 have a sheathed conductor 36 or 37 and a central conductor 34 or 35.
  • the coupling 33 provided for connecting the coaxial cables 30, 32 to one another accordingly consists of a first coupling piece 38 and a second coupling piece 39, the coaxial cable 30 being firmly connected to the first coupling piece 38 and the coaxial cable 32 being firmly connected to the second coupling piece 39.
  • the first coupling piece 38 comprises a connection area 40 which is connected to the central conductor 34.
  • the second coupling piece 39 also comprises a connection area 41, which is connected accordingly to the central conductor 35 of the second coupling piece 39.
  • connection area 41 is equipped with a connection head 42 which can be brought into contact with the connection area 40 and which is resiliently removed from the actual connection area 41 via a spring element 43. is supported.
  • the spring of the spring element 43 is tensioned when the coupling 33 is closed and, due to its restoring force, constantly presses the connecting head 42 against a corresponding contact surface of the connection area 40 of the first coupling piece 38 and thus ensures a particularly reliable electrical connection.
  • Suitable springs are, for example, spiral springs, disc springs, leaf springs or coil springs as in the exemplary embodiment.
  • connection head 42 is equipped with, for example, a convex tip 44, which in the exemplary embodiment is shaped like a truncated cone, and which fits into a provided, for example inserts concave recess 45 in the connection area 40.
  • the recess 45 is conical in the exemplary embodiment and thus its contouring is adapted to the tip 44 of the connecting head 42.
  • connection head 42 is held on the connection area 41 by a retaining screw 50. As a result, a complete loosening of the connecting head 42 is reliably avoided, even when the clutch 33 is open.
  • FIG. 3 shows a cross section through the jacket conductors 36 and 37 of the coupling pieces 38 and 39 with a closure element 54 enclosing the flanges 52 and thereby connecting the coupling pieces 38 and 39, for example a clamping ring, which is held together by a spring clip (not shown).
  • FIG. 4 likewise shows a cross section through the jacket conductors 28 of the coupling pieces 38 and 39 with a closure element 54 which surrounds the mounting flanges 52 and thereby connects the coupling pieces 38 and 39 and which is equipped with a circumferential seal 56.
  • the seal 56 allows a particularly tight and secure closure of the coupling 33 by the closure element 54.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Multi-Conductor Connections (AREA)
  • Cable Accessories (AREA)

Abstract

The invention relates to a connector (33) for interconnecting two coaxial cables (30, 32), each comprising a central conductor (34, 35) that is surrounded by an outer conductor (36, 37), whereby a respective connector piece (38, 39) is assigned to each coaxial cable (30, 32). The aim of the invention is to ensure the easy and rapid use of the connector, whilst reliably guaranteeing the electrical contact between the interconnected coaxial cables. To achieve this, each connector piece (38, 39) comprises one connection region (40, 41) that is electrically connected to the respective central conductor (34, 35) of the corresponding coaxial cable (30, 32), a connection head (42) of the second connector piece (39) being supported on the connection region of said piece by means of a spring element (43), in order to make electrical contact with the connection region (40) of the first connector piece (38).

Description

Beschreibung description
Kupplung für KoaxialkabelCoupling for coaxial cables
Die Erfindung bezieht sich auf eine Kupplung für Koaxialkabel gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a coupling for coaxial cables according to the preamble of claim 1.
Eine derartige Kupplung ist beispielsweise aus der EP 0 314 299 A1 bekannt. Kupplungen für Koaxialkabel mit federgelagertem Verbindungselementen sind weiterhin aus den Druckschriften US 3, 416, 125, US 4, 012, 105 oder US 6, 053, 777 bekannt.Such a coupling is known for example from EP 0 314 299 A1. Couplings for coaxial cables with spring-loaded connecting elements are also known from the publications US 3, 416, 125, US 4, 012, 105 or US 6, 053, 777.
Eine derartige Kupplung kann in vielerlei industriellen Anwendungen bedeutsam sein, bei denen Koaxialkabel beispielsweise bei Wartungsarbeiten schnell und einfach auseinander- und zusammengekuppelt werden müssen. Insbesondere kann eine derartige Kupplung bei starren Koaxialleitern zum Einsatz kommen, wie sie beispielsweise in einer kerntechnischen Anlage oder einer Kernkraftwerks-Anlage zur Übertragung von elektrischen Signalen oder Impulsen verwendet werden.Such a coupling can be important in many industrial applications in which coaxial cables have to be quickly and easily disengaged and coupled together, for example during maintenance work. In particular, such a coupling can be used in the case of rigid coaxial conductors, such as those used in a nuclear facility or a nuclear power plant for the transmission of electrical signals or pulses.
In Kernkraftwerks-Anlagen ist es erforderlich, den Füllstand eines Betriebs- oder Kühlmediums in einem nicht direkt einsehbaren Behälter zu überwachen und gegebenenfalls nachzuregeln, beispielsweise den Füllstand des Primärkühlmittels im Reaktordruckbehälter. Dazu kann das sogenannte TDR-Messprinzip (time-domain-reflectome- try) zum Einsatz kommen, wie es beispielsweise aus der DE 19958584C1 bekannt ist. Beim TDR-Messprinzip wird der Effekt genutzt, dass ein in einem Antennensystem geführter elektromagnetischer Impuls teilweise reflektiert wird, wenn sich die Impedanz zwischen beispielsweise einem Zentralleiter der Antenne und einem diesen in der Art eines Koaxialkabels umgebenden Mantelleiter abrupt ändert.In nuclear power plants, it is necessary to monitor the level of an operating or cooling medium in a container that is not directly visible and, if necessary, to readjust it, for example the level of the primary coolant in the reactor pressure vessel. The so-called TDR measuring principle (time-domain reflectometry) can be used for this purpose, as is known, for example, from DE 19958584C1. The effect of the TDR measuring principle is that an electromagnetic pulse carried in an antenna system is partially reflected when the impedance changes abruptly between, for example, a central conductor of the antenna and a sheathed conductor surrounding it in the manner of a coaxial cable.
Eine derartige abrupte Änderung der Impedanz tritt beispielsweise dort auf, wo die solchermaßen gebildete Antenne aus einer gasförmigen Umgebung in eine Flüssigkeit eintaucht, da die Impedanz von der Kapazität zwischen Zentralleiter und Mantelleiter und somit von der dielektrischen Konstanten des den Zwischenraum zwischen Zentralleiter und Mantelleiter ausfüllenden Mediums abhängt. Ein einer derartigen, in das zu leiter und Mantelleiter ausfüllenden Mediums abhängt. Ein einer derartigen, in das zu überwachende Medium getauchten Antenne zugeführter elektromagnetischer Impuls wird somit an der Oberfläche des Mediums teilweise reflektiert. Eine weitere Reflektion tritt am üblicherweise kurzgeschlossenen Antennenende ein. Da im übrigen die Ausbreitungsgeschwindigkeit des elektromagnetischen Impulses in der Antenne bekannt ist, kann die Laufzeitdifferenz zwischen dem an der Grenzschicht reflektierten Impuls und dem am Antennenende reflektierten Impuls als Maß für die Lage der Grenzschicht und somit als Mittel zur Ermittlung eines für die Lage der Grenzschicht charakteristischen Positionskennwertes herangezogen werden, wobei eine im wesentlichen proportionale Abhängigkeit zwischen Laufzeitdifferenz und Positionskennwert zugrunde gelegt werden kann.Such an abrupt change in impedance occurs, for example, where the antenna formed in this way is immersed in a liquid from a gaseous environment, since the impedance depends on the capacitance between the central conductor and the sheathed conductor and thus on the dielectric constant of the medium filling the space between the central conductor and the sheathed conductor depends. One of such, in that too depends on the conductor and sheathed conductor filling medium. An electromagnetic pulse supplied to such an antenna, which is immersed in the medium to be monitored, is thus partially reflected on the surface of the medium. Another reflection occurs at the usually short-circuited antenna end. Since, moreover, the propagation speed of the electromagnetic pulse in the antenna is known, the transit time difference between the pulse reflected at the boundary layer and the pulse reflected at the antenna end can be used as a measure of the position of the boundary layer and thus as a means of determining a characteristic of the position of the boundary layer Position characteristic value can be used, whereby an essentially proportional dependency between the term difference and position characteristic value can be used.
Um dieses Verfahren zur Diagnose und zur Überwachung beispielsweise eines Mediums in einem geschlossenen Behälter anwenden zu können, ist somit die Übertragung von elektromagnetischen Impulsen vom Außenbereich in den Innenraum des Behälters und umgekehrt erforderlich. Andererseits kann es jedoch je nach Art und Eigenschaften des im Behälter vorgehaltenen Mediums zwingend erforderlich oder zumindest von großer Bedeutung sein, ein besonders hohes Maß an Dichtigkeit des Behälters sicherzustellen. Je nach den auslegungsgemäß im Behälter vorherrschenden Betriebsparametern, wie beispielsweise Druck und Temperatur des dort vorgehaltenen Mediums, sind somit im Einzelfall besonders hohe Anforderungen an die zur Ein- und Ausleitung elektromagnetischer Impulse verwendete elektrische Durchführung zu stellen. Dasselbe gilt für die Übertragung eines elektromagnetischen Impulses aus dem den Reaktordruckbehälter umgebenden Containment heraus zu einem Pulsgenerator bzw. zu einer Auswertungs- und Steuereinheit und umgekehrt.In order to be able to use this method for the diagnosis and monitoring of, for example, a medium in a closed container, the transmission of electromagnetic pulses from the outside into the interior of the container and vice versa is therefore necessary. On the other hand, depending on the type and properties of the medium held in the container, it may be imperative or at least of great importance to ensure a particularly high degree of tightness of the container. Depending on the operating parameters prevailing in the container according to the design, such as, for example, the pressure and temperature of the medium held there, particularly high demands are to be made on the electrical feedthrough used for introducing and discharging electromagnetic pulses. The same applies to the transmission of an electromagnetic pulse from the containment surrounding the reactor pressure vessel to a pulse generator or to an evaluation and control unit and vice versa.
Zur Übertragung der elektromagnetischen Impulse zwischen der Containmentwand und dem Reaktordruckbehälter können dabei beispielsweise starre Koaxialleiter verwendet werden, insbesondere um die für eine zuverlässige Meßwertgewinnung erforderliche hohe Signalqualität zu gewährleisten. Allerdings kann es dennoch, beispielsweise bei Wartungsarbeiten, erforderlich sein, den Reaktordruckbehälter zugänglich zu machen. Um dies selbst bei einer Verwendung starrer Koaxialleiter bei nur geringem Aufwand zu ermöglichen, ist eine Kuppelvorrichtung wünschenswert, die es erlaubt, Segmente des Koaxialleiters zwischen den erwähnten beiden Durchführungen schnell und unkompliziert auseinander- und zusammenzukuppeln.For example, rigid coaxial conductors can be used to transmit the electromagnetic pulses between the containment wall and the reactor pressure vessel, in particular in order to ensure the high signal quality required for reliable measurement value acquisition. However, it may still be necessary to make the reactor pressure vessel accessible, for example during maintenance work. In order to make this possible even with the use of rigid coaxial conductors with little effort, a coupling device which allows segments of the Coupling the coaxial conductor between the two bushings mentioned quickly and easily.
Um die Störung und Dämpfung des elektromagnetischen Impulses in einem derartigen System auch an der Kuppelstelle möglichst gering zu halten, sollte die Kupplung hohe Anforderungen erfüllen. Insbesondere sollten die Impedanzen über die Länge des Leiters konstant gehalten sein oder sich zumindest nicht unstetig ändern, so dass für die Messung störende Reflexionen an Impedanzsprüngen bestmöglich vermieden werden. Besonders wichtig für eine zuverlässige Übertragung des elektromagnetischen Impulses ist ein hochwertiger elektrischer Kontakt zwischen durch die Kupplung verbundenen Leitern.In order to keep the interference and damping of the electromagnetic pulse in such a system as low as possible at the coupling point, the coupling should meet high requirements. In particular, the impedances should be kept constant over the length of the conductor or at least not change discontinuously, so that disturbing reflections on impedance jumps are avoided as best as possible. High-quality electrical contact between conductors connected by the coupling is particularly important for reliable transmission of the electromagnetic pulse.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Kupplung der oben genanntenArt anzugeben, die sowohl einfach und schnell bedienbar ist als auch mit hoher Zuverlässigkeit den elektrischen Kontakt zwischen den zusammengekuppelten Koaxialleitern gewährleistet.The invention is therefore based on the object of specifying a coupling of the type mentioned above which is both simple and quick to use and which ensures the electrical contact between the coupled coaxial conductors with high reliability.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass das dem Anschlussbereich des zweiten Kupplungsstückes zugewandte Ende des Verbindungskopfes mit Kontaktfingern versehen ist, die sich in dafür vorgesehene Ausnehmungen im Anschlussbereich des zweiten Kupplungsstückes einfügen, wobei der Anschlussbereich des zweiten Kupplungsstückes mit einem Kontaktstück versehen ist, das für den oder jeden Kontaktfinger eine zugeordnete Anschlussfläche aufweist.This object is achieved in that the end of the connection head facing the connection area of the second coupling piece is provided with contact fingers which fit into recesses provided for this purpose in the connection area of the second coupling piece, the connection area of the second coupling piece being provided with a contact piece which is suitable for the or each contact finger has an associated connection surface.
Die Erfindung geht dabei von der Überlegung aus, dass ein Kupplungsmechanismus für Koaxialkabel leicht bedienbar sollte, also eine schnelle und einfache Kopplung und Entkopplung der Kabel ermöglichen sollte. Gleichzeitig sollte aber auch der elektrische Kontakt zwischen über die Kupplung verbundenen Koaxialleitern während des Betriebes der Anlage besonders intensiv sein. Um diese beiden im Prinzip einander widersprechenden Bedingungen zu erfüllen, ist die Kupplung mit einer Vorrichtung versehen, die den Kontakt zwischen den zu koppelnden Leitern in besonderem Maße verstärkt. Hierbei ist die gezielte Nutzung der Rückstellkraft eines Federelementes vorgesehen, wobei die Feder beim Zusammenkuppeln der beiden Koaxialleiter belastet wird und daher ständig eine den elektrischen Kontakt begünstigende Kraft auf beide Leiter ausübt.The invention is based on the consideration that a coupling mechanism for coaxial cables should be easy to operate, that is to say that the cables should be able to be coupled and uncoupled quickly and easily. At the same time, however, the electrical contact between the coaxial conductors connected via the coupling should also be particularly intensive during the operation of the system. In order to meet these two conditions, which in principle contradict one another, the coupling is provided with a device which particularly strengthens the contact between the conductors to be coupled. Here, the targeted use of the restoring force of a spring element is provided, the spring being loaded when the two coaxial conductors are coupled together therefore constantly exerts a force favoring the electrical contact on both conductors.
Um einen besonders innigen Kontakt zwischen Verbindungskopf und Anschlussbereich des ersten Kupplungsstückes gewährleisten zu können, ist der Verbindungskopf dabei am Anschlussbereich des ersten Kupplungsstückes verschiebbar gelagert. Dabei ist der Verbindungskopf zweckmäßigerweise bei geöffneter Kupplung derart positioniert, dass bei der Montage der Kupplung der Anschlussbereich des ersten Kupplungsstückes den Verbindungskopf auf den Anschlussbereich des zweiten Kupplungsstückes zu bewegt und dabei das Federelement spannt. Die dadurch erzeugte Rückstellkraft des Federelements führt demzufolge zu einem andauernden Anpressen des Verbindungskopfes an das erste Kupplungsstück und somit zu einer besonders zuverlässigen elektrischen Verbindung. Die Kontaktfinger bewirken sowohl eine Zentrierung des Verbindungskopfes bezüglich der Längsachse der Kupplung als auch die Herstellung des elektrischen Kontaktes zwischen Verbindungskopf und Anschlussbereich. Durch das Zusammenwirken der Kontaktfinger mit den zugeordneten Ausnehmungen und insbesondere mit in diesen angeordneten Kontaktflächen ist auch bei einer Verschiebung des Verbindungskopfes in Längsrichtung jederzeit ein ausreichender Kontakt mit dem ihn tragenden Anschlussbereich sichergestellt.In order to be able to guarantee a particularly intimate contact between the connection head and the connection area of the first coupling piece, the connection head is slidably mounted on the connection area of the first coupling piece. The connection head is expediently positioned when the coupling is open in such a way that when the coupling is assembled, the connection area of the first coupling piece moves the connection head toward the connection area of the second coupling piece and thereby tensions the spring element. The resulting restoring force of the spring element consequently leads to a permanent pressing of the connecting head against the first coupling piece and thus to a particularly reliable electrical connection. The contact fingers both center the connection head with respect to the longitudinal axis of the coupling and produce the electrical contact between the connection head and the connection area. Due to the interaction of the contact fingers with the associated recesses and in particular with contact surfaces arranged in them, sufficient contact with the connection area carrying it is ensured at all times even when the connecting head is displaced in the longitudinal direction.
Die Kontaktfinger des Verbindungskopfes umschließen ein am Anschlussbereich des zweiten Kupplungsstückes angebrachtes Kontaktstück, welches dazu dient, den elektrischen Kontakt zwischen Verbindungskopf und Anschlussbereich sicherzustellen. Je nach Belastung des dem Verbindungskopf zugeordneten Federelementes liegen die Kontaktfinger an einer größeren oder kleineren Fläche des Kontaktstückes an. Das Kontaktstück hat also zusätzlich die Aufgabe, auch bei variierender Länge der Feder den elektrischen Kontakt zwischen Verbindungskopf und Anschlussbereich des zweiten Kupplungsstückes zuverlässig aufrecht zu erhalten.The contact fingers of the connection head enclose a contact piece attached to the connection area of the second coupling piece, which serves to ensure the electrical contact between the connection head and the connection area. Depending on the load on the spring element assigned to the connecting head, the contact fingers rest on a larger or smaller surface of the contact piece. The contact piece therefore also has the task of reliably maintaining the electrical contact between the connecting head and the connection area of the second coupling piece, even with a varying length of the spring.
Vorteilhafterweise fügt sich der Verbindungskopf in eine im Anschlussbereich des ersten Kupplungsstückes angebrachte Ausnehmung derart ein, dass er sich dadurch selbst bezüglich der Längsachse der Kupplung zentriert. Dabei kann die Form des Verbindungskopfes insbesondere konvex sein und sich in eine korrespondierende konkave Ausnehmung im Anschlussbereich des ersten Kupplungsstückes einfügen, wobei sowohl der Verbindungskopf als auch die Ausnehmung rotationssymmetrisch um die Längsachse der Kupplung sind. Damit ist sichergestellt, dass sich der Verbindungskopf besonders leicht an das zweite Kupplungsstück anfügt und dass sich die Mittelachsen beider Kupplungsstücke beim Zusammenkuppeln nicht gegeneinander verschieben können, was zu unerwünschten Störungen des elektromagnetischen Impulses führen und zudem eine Verbindung der Mantelleiter miteinander unmöglich machen kann.Advantageously, the connecting head fits into a recess made in the connection area of the first coupling piece such that it thereby centers itself with respect to the longitudinal axis of the coupling. The shape of the connecting head can in particular be convex and a corresponding concave Insert the recess in the connection area of the first coupling piece, both the connecting head and the recess being rotationally symmetrical about the longitudinal axis of the coupling. This ensures that the connecting head attaches particularly easily to the second coupling piece and that the central axes of both coupling pieces cannot move against each other when coupling together, which can lead to undesirable disturbances in the electromagnetic pulse and can also make it impossible to connect the sheathed conductors to one another.
Aus fertigungstechnischen Gründen ist dabei insbesondere eine konische Ausnehmung im Anschlussbereich des ersten Kupplungsstückes vorteilhaft, mit der ein in der Art eines Kegelstumpfes geformter Verbindungskopf korrespondiert.For manufacturing reasons, a conical recess in the connection area of the first coupling piece is particularly advantageous, with which a connecting head shaped in the manner of a truncated cone corresponds.
Vorteilhafterweise ist eine Rückhalteschraube am Anschlussbereich des zweiten Kupplungstückes verankert, hält den Verbindungskopf am Anschlussbereich und verhindert eine völlige Lösung des Verbindungskopfes bei geöffneter Kupplung. Zweckmäßigerweise ist der Mantelleiter jedes Kupplungsstückes mit einem Montageflansch ausgestattet, der eine Verbindung der Kupplungsstücke miteinander erlaubt. Vorteilhafterweise ist dabei zwischen den Montageflanschen eine umlaufende Dichtung angebracht, welche einen dichten Verschluss der Kupplung ermöglicht.Advantageously, a retaining screw is anchored to the connection area of the second coupling piece, holds the connection head at the connection area and prevents the connection head from being completely loosened when the coupling is open. The jacket conductor of each coupling piece is expediently equipped with a mounting flange which allows the coupling pieces to be connected to one another. Advantageously, a circumferential seal is attached between the mounting flanges, which enables a tight closure of the coupling.
Die sichere Verbindung beider Kupplungsstücke erfolgt zweckmäßigerweise über ein Verschlusselement, welches es erlaubt, die beiden Kupplungsstücke fest zusammenzuhalten. Ein derartiges Verschlusselement ist in seiner Form und Konturierung derjenigen der Montageflansche angepaßt und umschließt im verbundenen Zustand die Montageflansche.The secure connection of the two coupling pieces is expediently carried out via a closure element, which allows the two coupling pieces to be held firmly together. Such a closure element is adapted in shape and contour to that of the mounting flanges and encloses the mounting flanges in the connected state.
Vorteilhafterweise ist das Verschlusselement ein Klemmring mit einem Federbügel, welcher eine besonders einfache und schnelle Bedienung der Kupplung ermöglicht.The closure element is advantageously a clamping ring with a spring clip, which enables particularly simple and quick operation of the coupling.
Eine unerwünschte Dämpfung des elektromagnetischen Impulses kann dadurch ausgeschlossen oder zumindest gering gehalten werden, dass sich die Impedanzen über die Länge der Kuppelstelle nicht oder nur geringfügig ändern. Um dies zu gewährlei- sten, sind die entsprechenden Komponenten, also insbesondere die Anschlussbereiche und die diese umgebenden Mantelleiter, vorteilhafterweise geeignet dimensioniert.An undesired damping of the electromagnetic pulse can be excluded or at least kept low by the fact that the impedances do not change or change only slightly over the length of the coupling point. To ensure this Most, the corresponding components, in particular the connection areas and the sheathed conductors surrounding them, are advantageously suitably dimensioned.
Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, dass durch die Verwendung eines Federelements bei der Herstellung einer elektrischen Verbindung zwischen den Zentralleitern der Koaxialkabel eine besonders einfach und schnell zu bedienende Kupplung bereitgestellt wird, die zudem sicherstellt, dass die elektrische Verbindung zwischen den Koaxialleitern besonders hochwertig ist. Dadurch wird die Verwendung der Kupplung auch bei empfindlichen Messungen ermöglicht, die eine hohe Signalqualität erfordern. Die Kupplung ist somit besonders geeignet für den Einsatz an Signale für TDR-Messungen übertragenden Koaxialleitern in Kernkraftwerken. Ein Ausführungsbeispiel wird anhand einer Zeichnung näher erläutert. Darin zeigen:The advantages achieved by the invention are, in particular, that the use of a spring element in the production of an electrical connection between the central conductors of the coaxial cables provides a particularly simple and quick-to-use coupling, which also ensures that the electrical connection between the coaxial conductors is particularly good is high quality. This enables the coupling to be used even for sensitive measurements that require high signal quality. The coupling is therefore particularly suitable for use on signals for coaxial conductors transmitting TDR measurements in nuclear power plants. An embodiment is explained in more detail with reference to a drawing. In it show:
FIG 1 schematisch ein System zur Überwachung des Füllstandes in einem geschlossenen Reaktordruckbehälter,1 schematically shows a system for monitoring the fill level in a closed reactor pressure vessel,
FIG 2 im Querschnitt eine Kupplung für Koaxialkabel,2 shows in cross section a coupling for coaxial cables,
FIG 3 im Querschnitt die Mantelleiter der Koaxialkabel mit einem Verschlusselement, und3 shows in cross section the sheathed conductor of the coaxial cable with a closure element, and
FIG 4 im Querschnitt dieselben Mantelleiter der Koaxialkabel mit einem Verschlusselement und einer Dichtung.4 shows in cross section the same sheathed conductor of the coaxial cable with a closure element and a seal.
Gleiche Teile sind in allen Figuren mit denselben Bezugszeichen versehen.Identical parts are provided with the same reference symbols in all figures.
Das System 1 nach Figur 1 ist zur Überwachung eines Mediums M innerhalb des angeschlossenen Reaktordruckbehälters 2 einer kerntechnischen Anlage vorgesehen. Der Reaktordruckbehälter 2 ist innerhalb eines geschlossen ausgeführten und in Figur 1 lediglich andeutungsweise gezeigten Containments 4 angeordnet. Zum geeigneten Austausch von Signalen S ist der Reaktordruckbehälter 2 über eine Signalleitung 6, die über eine Durchführung 8 durch das Containment 4 geführt ist, mit einer Kommunikationsschnittstelle 10 des Systems 1 verbunden.The system 1 according to FIG. 1 is provided for monitoring a medium M within the connected reactor pressure vessel 2 of a nuclear facility. The reactor pressure vessel 2 is arranged inside a containment 4 which is designed to be closed and is only indicated in FIG. 1. For the suitable exchange of signals S, the reactor pressure vessel 2 is connected via a signal line 6 is led through a containment 8 through the containment 4, connected to a communication interface 10 of the system 1.
Als Medium M ist im Ausführungsbeispiel im Reaktordruckbehälter 2 Wasser W vorgehalten, das als Primärkühlmittel der kemtechnischen Anlage dient. In einem unteren Raumbereich liegt das Wasser w im sogenannten unterkühlten Zustand unvermischt vor. In einem darüberliegenden Raumbereich, in dem eine Beheizungswirkung der im Reaktordruckbehälter 2 angeordneten nuklearen Brennelemente vorliegt, befindet sich hingegen ein Phasengemisch W,D zwischen Wasser W und sich darin bildenden Dampfblasen D. In einem noch weiter darüber liegenden Bereich liegt hingegen ausschließlich verdampftes Primärkühlmittel, also ausschließlich Dampf D, vor. Das im Behälter 2 vorgehaltenen Medium M weist somit eine erste Grenzschicht 12 zwischen Wasser W und dem Phasengemisch W,D und eine zweite Grenzschicht 14 zwischen dem Phasengemisch W,D und dem Dampf D auf.In the exemplary embodiment, water W is held as medium M in the exemplary embodiment of the reactor pressure vessel 2, which serves as the primary coolant of the nuclear plant. In a lower area of the room, the water w is unmixed in the so-called supercooled state. In contrast, in a room area above, in which there is a heating effect of the nuclear fuel elements arranged in the reactor pressure vessel 2, there is a phase mixture W, D between water W and vapor bubbles D formed therein. In an even further area, on the other hand, there is exclusively evaporated primary coolant, that is only steam D, before. The medium M held in the container 2 thus has a first boundary layer 12 between water W and the phase mixture W, D and a second boundary layer 14 between the phase mixture W, D and the vapor D.
Beim Betrieb der kerntechnischen Anlage ist die Überwachung einer großen Anzahl von Betriebsparametern vorgesehen. Unter anderem kann es dabei wünschenswert oder erforderlich sein, die Lage der Grenzschichten 12, 14 zu überwachen. Beispielsweise kann dabei die Lage der Grenzschicht 14 über eine Füllstandsmessung erfolgen.A large number of operating parameters are provided for monitoring the operation of the nuclear plant. Among other things, it may be desirable or necessary to monitor the position of the boundary layers 12, 14. For example, the position of the boundary layer 14 can take place via a fill level measurement.
Das System 1 ist zur zeitnahen Ermittlung und Überwachung von Positionskennwerten der Grenzschichten 12, 14 vorgesehen. Dazu ist das System 1 für die Nutzung des sogenannten TDR-Messprinzips (time-domain-reflectometry) ausgestaltet. Für eine derartige TDR-Messung ist innerhalb des Reaktordruckbehälters 2 ein im wesentlichen senkrecht angeordnetes, als Antenne dienendes Koaxialkabel 16 vorgesehen. Das Koaxialkabel 16 ist über eine elektrische Durchführung 18 aus dem Reaktordruckbehälter herausgeführt und an die Signalleitung 6 angeschlossen. Die mit der Signalleitung 6 verbundene Kommunkationsschnittstelle 10 ist ihrerseits mit einen die elektromagnetischen Impulse erzeugenden Pulsgenerator 20 und mit einer Auswerte- und Steuereinheit 22 mit Ausgabemodul 24 und Speichermodul 26 verbunden. Selbstverständlich ist die Auswerte- und Steuereinheit 22 noch mit weiteren, für einen ordnungsgemäßen Betrieb erforderlichen Komponenten wie beispielsweise einer Eingabevorrichtung verbunden. Das System 1 ist mit seinen Komponenten gezielt auf den Einsatz des TDR-Messprin- zips ausgerichtet. Dazu ist unter anderem ein qualitativ besonders hochwertiger Signaltransport in den dazu vorgesehenen Leitungen wie insbesondere der Signalleitung 6 gewünscht. Um dies besonders zu begünstigen, ist die Signalleitung 6 ihrerseits als starr ausgeführtes Koaxialkabel ausgebildet.The system 1 is provided for the prompt determination and monitoring of positional characteristic values of the boundary layers 12, 14. To this end, system 1 is designed to use the so-called TDR measurement principle (time-domain reflectometry). For such a TDR measurement, a substantially vertical coaxial cable 16 serving as an antenna is provided within the reactor pressure vessel 2. The coaxial cable 16 is led out of the reactor pressure vessel via an electrical feedthrough 18 and connected to the signal line 6. The communication interface 10 connected to the signal line 6 is in turn connected to a pulse generator 20 that generates the electromagnetic pulses and to an evaluation and control unit 22 with an output module 24 and a memory module 26. Of course, the evaluation and control unit 22 is also connected to other components required for proper operation, such as an input device. With its components, System 1 is specifically geared towards the use of the TDR measuring principle. For this purpose, a particularly high-quality signal transport in the lines provided for this purpose, in particular the signal line 6, is desired. In order to particularly favor this, the signal line 6 is in turn designed as a rigid coaxial cable.
Um aber Wartungsarbeiten am Reaktordruckbehälter 2 zu ermöglichen, kann es erforderlich sein, die Signalleitung 6 bedarfsweise in einzelne Teilstücke zu zerlegen und wieder zusammenzufügen und beispielsweise an verschiedenen Stellen zwischen der Durchführung 8 und der Durchführung 18 auseinander- und nach abgeschlossenen Wartungsarbeiten schnell und einfach wieder zusammen zu kuppeln. Dazu ist die Signalleitung 6 aus mehreren Koaxialkabeln 30, 32 zusammengesetzt, die über eine Kupplung 33 lösbar miteinander verbunden sind.However, in order to enable maintenance work on the reactor pressure vessel 2, it may be necessary to disassemble the signal line 6 as required into individual sections and to reassemble them, for example at different points between the bushing 8 and the bushing 18 and apart quickly and easily after maintenance work has been completed to couple. For this purpose, the signal line 6 is composed of a plurality of coaxial cables 30, 32 which are detachably connected to one another via a coupling 33.
Um den insgesamt hohen Anforderungen an die Übertragungsqualität gerecht zu werden, ist auch die Kupplung 33 gezielt für dieses Auslegungsziel ausgestaltet. Dabei ist insbesondere vorgesehen, dass die Kupplung 33 bei insgesamt einfacher Bedienbar- keit einen besonders innigen elektrischen Kontakt zwischen den Zentralleitern 34 bzw. 35 der zu verbindenden Koaxialkabel 30, 32 herstellt.In order to meet the overall high demands on the transmission quality, the clutch 33 is also specifically designed for this design goal. In particular, it is provided that the coupling 33 produces a particularly intimate electrical contact between the central conductors 34 and 35 of the coaxial cables 30, 32 to be connected, while being easy to operate overall.
Wie in Figur 2 dargestellt, weisen das Koaxialkabel 30 und das Koaxialkabel 32 einen Mantelleiter 36 bzw. 37 und einen Zentralleiter 34 bzw. 35 auf. Die zur Verbindung der Koaxialkabel 30, 32 miteinander vorgesehene Kupplung 33 besteht dementsprechend aus einem ersten Kupplungsstück 38 und einem zweiten Kupplungsstück 39, wobei das Koaxialkabel 30 fest mit dem ersten Kupplungsstück 38 und das Koaxialkabel 32 fest mit dem zweiten Kupplungsstück 39 verbunden ist. Das erste Kupplungsstück 38 um- fasst einen Anschlussbereich 40, der mit dem Zentralleiter 34 verbunden ist. Das zweite Kupplungsstück 39 umfasst ebenfalls einen Anschlußbereich 41 , der entsprechend mit dem Zentralleiter 35 des zweiten Kupplungsstückes 39 verbunden ist. Zur Herstellung eines besonders innigen Kontaktes ist der Anschlussbereich 41 mit einem mit dem Anschlussbereich 40 in Kontakt bringbaren Verbindungskopf 42 ausgerüstet, der am eigentlichen Anschlussbereich 41 über ein Federelement 43 federnd abge- stützt ist. Die Feder des Federelements 43 wird beim Schließen der Kupplung 33 gespannt und presst durch ihre Rückstellkraft den Verbindungskopf 42 ständig an eine entsprechende Kontaktfläche des Anschlussbereiches 40 des ersten Kupplungsstückes 38 an und gewährleistet somit eine besonders zuverlässige elektrische Verbindung. Geeignete Federn sind beispielsweise Spiralfedern, Tellerfedern, Blattfedern oder Schraubenfedern wie im Ausführungsbeispiel.As shown in FIG. 2, the coaxial cable 30 and the coaxial cable 32 have a sheathed conductor 36 or 37 and a central conductor 34 or 35. The coupling 33 provided for connecting the coaxial cables 30, 32 to one another accordingly consists of a first coupling piece 38 and a second coupling piece 39, the coaxial cable 30 being firmly connected to the first coupling piece 38 and the coaxial cable 32 being firmly connected to the second coupling piece 39. The first coupling piece 38 comprises a connection area 40 which is connected to the central conductor 34. The second coupling piece 39 also comprises a connection area 41, which is connected accordingly to the central conductor 35 of the second coupling piece 39. To produce a particularly intimate contact, the connection area 41 is equipped with a connection head 42 which can be brought into contact with the connection area 40 and which is resiliently removed from the actual connection area 41 via a spring element 43. is supported. The spring of the spring element 43 is tensioned when the coupling 33 is closed and, due to its restoring force, constantly presses the connecting head 42 against a corresponding contact surface of the connection area 40 of the first coupling piece 38 and thus ensures a particularly reliable electrical connection. Suitable springs are, for example, spiral springs, disc springs, leaf springs or coil springs as in the exemplary embodiment.
Um ein besonders leichtes Zusammenfügen des Verbindungskopfes 42 und des Anschlussbereiches 40 und ein Selbstzentrieren des Verbindungskopfes 42 zu erreichen, ist der Verbindungskopf 42 mit einer beispielsweise konvexen, im Ausführungsbeispiel in der Art eines Kegelstumpfes geformten Spitze 44 ausgestattet, die sich in eine dafür vorgesehene, beispielsweise konkave Ausnehmung 45 im Anschlussbereich 40 einfügt. Die Ausnehmung 45 ist im Ausführungsbeispiel konisch und somit hinsichtlich ihrer Konturierung an die Spitze 44 des Verbindungskopfes 42 angepasst. Ein hochwertiger elektrischer Kontakt zwischen dem Verbindungskopf 42 und dem diesen tragenden Anschlussbereich 41 des zweiten Kupplungsstückes 39 wird durch am Verbindungskopf 42 angebrachte Kontaktfinger 46 ermöglicht. Diese umschließen ein am Anschlussbereich 41 angebrachtes Kontaktstück 47 und liegen je nach Belastung des Federelementes 43 an einer größeren oder kleinere Fläche des Kontaktsstückes 47 an. Die Kontaktfinger 46 können am Kontaktstück 47 entlang gleiten, wobei in jeder Position der Kontaktfinger 46 der elektrische Kontakt zwischen dem Verbindungskopf 42 und dem Anschlussbereich 41 des zweiten Kupplungsstückes 39 sichergestellt ist. Damit ist auch bei variierender Länge der Feder ein hochwertiger elektrischer Kontakt zwischen dem Verbindungskopf 42 und dem Anschlussbereich 41 gewährleistet. Der Verbindungskopf 42 wird durch eine Rückhalteschraube 50 am Anschlussbereich 41 gehalten. Dadurch wird eine völlige Lösung des Verbindungskopfes 42 selbst bei geöffneter Kupplung 33 sicher vermieden.In order to achieve a particularly easy assembly of the connection head 42 and the connection area 40 and a self-centering of the connection head 42, the connection head 42 is equipped with, for example, a convex tip 44, which in the exemplary embodiment is shaped like a truncated cone, and which fits into a provided, for example inserts concave recess 45 in the connection area 40. The recess 45 is conical in the exemplary embodiment and thus its contouring is adapted to the tip 44 of the connecting head 42. A high-quality electrical contact between the connection head 42 and the connection area 41 of the second coupling piece 39 carrying this is made possible by contact fingers 46 attached to the connection head 42. These enclose a contact piece 47 attached to the connection area 41 and, depending on the load on the spring element 43, lie against a larger or smaller area of the contact piece 47. The contact fingers 46 can slide along the contact piece 47, the electrical contact between the connecting head 42 and the connection region 41 of the second coupling piece 39 being ensured in every position of the contact finger 46. This ensures high-quality electrical contact between the connecting head 42 and the connection region 41 even with a varying length of the spring. The connection head 42 is held on the connection area 41 by a retaining screw 50. As a result, a complete loosening of the connecting head 42 is reliably avoided, even when the clutch 33 is open.
Die die Anschlussbereiche 40 bzw. 41 der Kupplungsstücke 38 und 39 umgebenden Mantelleiter 36 bzw. 37 sind jeweils mit einem Montageflansch 52 versehen, der die Verbindung der Kupplungsstücke 38 und 39 miteinander erlaubt. Figur 3 zeigt einen Querschnitt durch die Mantelleiter 36 bzw. 37 der Kupplungsstücke 38 und 39 mit einem die Flansche 52 umschließenden und dadurch die Kupplungstücke 38 und 39 miteinander verbindenden Verschlusselement 54, beispielsweise einem Klemmring, der durch einen nicht dargestellten Federbügel zusammen gehalten wird.The sheathed conductors 36 and 37 surrounding the connection areas 40 and 41 of the coupling pieces 38 and 39 are each provided with a mounting flange 52 which allows the coupling pieces 38 and 39 to be connected to one another. FIG. 3 shows a cross section through the jacket conductors 36 and 37 of the coupling pieces 38 and 39 with a closure element 54 enclosing the flanges 52 and thereby connecting the coupling pieces 38 and 39, for example a clamping ring, which is held together by a spring clip (not shown).
Figur 4 zeigt ebenfalls einen Querschnitt durch die Mantelleiter 28 der Kupplungsstücke 38 und 39 mit einem die Montageflansche 52 umschließenden und dadurch die Kupplungstücke 38 und 39 verbindenden Verschlusselement 54, welches mit einer umlaufenden Dichtung 56 ausgestattet ist. Die Dichtung 56 erlaubt einen besonders dichten und sicheren Verschluß der Kupplung 33 durch das Verschlusselement 54. FIG. 4 likewise shows a cross section through the jacket conductors 28 of the coupling pieces 38 and 39 with a closure element 54 which surrounds the mounting flanges 52 and thereby connects the coupling pieces 38 and 39 and which is equipped with a circumferential seal 56. The seal 56 allows a particularly tight and secure closure of the coupling 33 by the closure element 54.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
Systemsystem
ReaktordruckbehälterRPV
Containmentcontainment
Signalleitungsignal line
Durchführungexecution
KommunikationsschnittstelleCommunication Interface
Grenzschichtinterface
Grenzschichtinterface
Antenneantenna
Durchführungexecution
Pulsgeneratorpulse generator
Auswerte- und SteuereinheitEvaluation and control unit
Ausgabemoduloutput module
Speichermodulmemory module
Koaxialkabelcoaxial
Koaxialkabelcoaxial
Kupplungclutch
ZentralleiterCentral Head
ZentralleiterCentral Head
Mantelleiterexternal conductor
Mantelleiterexternal conductor
Erstes KupplungsstückFirst coupling piece
Zweites kupplungsstückSecond coupling piece
Anschlussbereichterminal area
Anschlussbereichterminal area
Verbindungskopfconnecting head
Federelementspring element
Spitzetop
Ausnehmung 46 Kontaktfingerrecess 46 contact fingers
47 Kontaktstück47 contact piece
50 Rückhalteschraube50 retaining screw
52 Montageflansch52 mounting flange
54 Verschlusselement54 closure element
56 Dichtung56 seal
S SignaleS signals
W WasserW water
D DampfD steam
M Medium M medium

Claims

Ansprüche Expectations
1. Kupplung (33) zur Verbindung zweier Koaxialkabel (30, 32) mit jeweils einem von einem Mantelleiter (36, 37) umgebenen Zentralleiter (34, 35) miteinander, bei der jedem Koaxialkabel (30, 32) jeweils ein Kupplungsstück (38, 39) zugeordnet ist, von denen jedes jeweils einen mit dem Zentralleiter (34, 35) des ihm zugeordneten Koaxialkabels (30, 32) elektrisch verbundenen Anschlussbereich (40, 41 ) aufweist, wobei ein zur Herstellung eines elektrischen Kontaktes mit dem Anschlussbereich (40) des ersten Kupplungsstückes (38) vorgesehener, an diesem verschiebbar gelagerter Verbindungskopf (42) des zweiten Kupplungsstückes (39) an dessen Anschlußbereich (41 ) über ein Federelement (43) abgestützt ist, d a d u r c h g e k e n n z e i c h n e t, dass der Verbindungskopf (42) in einer Anzahl von Kontaktfingern (46) ausläuft, die sich in im Anschlussbereich (41) des zweiten Kupplungsstückes (39) angebrachte Ausnehmungen einfügen, wobei der Anschlussbereich (41 ) des zweiten Kupplungsstückes (39) mit einem Kontaktstück (47) versehen ist, das für den oder jeden Kontaktfinger (46) eine zugeordnete Anschlussfläche aufweist.1. Coupling (33) for connecting two coaxial cables (30, 32), each with a central conductor (34, 35) surrounded by a sheathed conductor (36, 37), with each coaxial cable (30, 32) having a coupling piece (38, 39), each of which has a connection area (40, 41) electrically connected to the central conductor (34, 35) of the coaxial cable (30, 32) assigned to it, one for establishing electrical contact with the connection area (40) of the first coupling piece (38) provided, displaceably mounted on this connecting head (42) of the second coupling piece (39) is supported at the connection area (41) thereof via a spring element (43), characterized in that the connecting head (42) is provided in a number of contact fingers (46) that fit into recesses in the connection area (41) of the second coupling piece (39), the connection area (41) of the second coupling piece back (39) is provided with a contact piece (47) which has an associated connection surface for the or each contact finger (46).
2. Kupplung (33) nach Anspruch 1 , bei der der Verbindungskopf (42) und der Anschlussbereich (40) des ersten Kupplungsstückes (38) derart in ihrer Form aufeinander abgestimmte Kontaktflächen aufweisen, dass sich der Verbindungskopf (42) beim Zusammenkuppeln selbstzentrierend bezüglich der Längsachse der Kupplung (33) an den Anschlussbereich (40) des ersten Kupplungstückes (38) anschließt.2. Coupling (33) according to claim 1, wherein the connecting head (42) and the connection area (40) of the first coupling piece (38) have such coordinated contact surfaces in such a way that the connecting head (42) self-centering with respect to the coupling Longitudinal axis of the coupling (33) connects to the connection area (40) of the first coupling piece (38).
3. Kupplung (33) nach Anspruch 1 oder 2, wobei der Verbindungskopf (42) eine in der Art eines Kegelstumpfes geformte Spitze (44) trägt, die mit einer im Anschlussbereich (40) des ersten Kupplungsstückes (38) angebrachten konischen Ausnehmung (45) korrespondiert.3. Coupling (33) according to claim 1 or 2, wherein the connecting head (42) carries a truncated cone-shaped tip (44) which has a conical recess (45) made in the connection region (40) of the first coupling piece (38) ) corresponds.
4. Kupplung (33) nach einem der Ansprüche 1 bis 3, bei der der Verbindungskopf (42) durch eine Rückhalteschraube (50) am Anschlussbereich (41 ) des zweiten Kupplungsstückes (39) gehalten ist. 4. Coupling (33) according to one of claims 1 to 3, wherein the connecting head (42) is held by a retaining screw (50) on the connection area (41) of the second coupling piece (39).
5. Kupplung (33) nach einem der Ansprüche 1 bis 4, wobei der jeweils den Anschlussbereich (40, 41 ) umgebende Mantelleiter (36, 37) jedes Kupplungsstücks (38, 39) mit einem Montageflansch (52) versehen ist.5. Coupling (33) according to one of claims 1 to 4, wherein each of the connecting region (40, 41) surrounding sheathed conductor (36, 37) of each coupling piece (38, 39) is provided with a mounting flange (52).
6. Kupplung (33) nach Anspruch 5 mit einer zwischen den Montageflanschen (52) eingebrachten, umlaufenden Dichtung (56).6. Coupling (33) according to claim 5 with a circumferential seal (56) introduced between the mounting flanges (52).
7. Kupplung (33) nach Anspruch 5 oder 6, bei der die Montageflansche (52) im montierten Zustand von einem gemeinsamen Verschlusselement (54) umschlossen sind.7. Coupling (33) according to claim 5 or 6, in which the mounting flanges (52) are enclosed in the assembled state by a common closure element (54).
8. Kupplung (33) nach Anspruch 7, bei der das Verschlusselement (54) einen Klemmring und einen Federbügel umfasst.8. Coupling (33) according to claim 7, wherein the closure element (54) comprises a clamping ring and a spring clip.
9. Kupplung (33) nach Anspruch 8 mit einer zwischen den Montageflanschen (52) eingebrachten, umlaufenden Dichtung (56).9. Coupling (33) according to claim 8 with a circumferential seal (56) introduced between the mounting flanges (52).
10. Kupplung (33) nach Anspruch 8 oder 9, bei der die Montageflansche (52) im montierten Zustand von einem gemeinsamen Verschlusselement (54) umschlossen sind.10. Coupling (33) according to claim 8 or 9, in which the mounting flanges (52) are enclosed in the assembled state by a common closure element (54).
11. Kupplung nach Anspruch 10, bei der das Verschlusselement (54) einen Klemmring und einen Federbügel umfasst. 11. Coupling according to claim 10, wherein the closure element (54) comprises a clamping ring and a spring clip.
EP03794918A 2002-08-29 2003-08-22 Connector for a coaxial cable Expired - Lifetime EP1540773B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10240563 2002-08-29
DE10240563A DE10240563B4 (en) 2002-08-29 2002-08-29 Coupling for coaxial cables
PCT/EP2003/009316 WO2004025786A1 (en) 2002-08-29 2003-08-22 Connector for a coaxial cable

Publications (2)

Publication Number Publication Date
EP1540773A1 true EP1540773A1 (en) 2005-06-15
EP1540773B1 EP1540773B1 (en) 2006-02-15

Family

ID=31502312

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03794918A Expired - Lifetime EP1540773B1 (en) 2002-08-29 2003-08-22 Connector for a coaxial cable

Country Status (13)

Country Link
US (1) US7131866B2 (en)
EP (1) EP1540773B1 (en)
JP (1) JP4348296B2 (en)
CN (1) CN100352105C (en)
AU (1) AU2003264090A1 (en)
BR (1) BR0313872A (en)
CA (1) CA2496845C (en)
CZ (1) CZ301400B6 (en)
DE (2) DE10240563B4 (en)
ES (1) ES2258237T3 (en)
UA (1) UA79809C2 (en)
WO (1) WO2004025786A1 (en)
ZA (1) ZA200500722B (en)

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JP5523416B2 (en) * 2011-09-07 2014-06-18 茂治郎 清水 Connector for energization
CN105048172A (en) * 2015-06-30 2015-11-11 张家港金海港电线电缆有限公司 Quick cable connection device
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CN106428092B (en) * 2016-11-01 2018-12-04 崔建国 The application system of engine rear view automatic conversion electric connector
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Also Published As

Publication number Publication date
DE10240563B4 (en) 2004-08-05
CN100352105C (en) 2007-11-28
ES2258237T3 (en) 2006-08-16
CZ2005117A3 (en) 2006-01-11
ZA200500722B (en) 2005-10-26
CN1679211A (en) 2005-10-05
AU2003264090A1 (en) 2004-04-30
CA2496845C (en) 2009-12-29
WO2004025786A1 (en) 2004-03-25
CZ301400B6 (en) 2010-02-17
BR0313872A (en) 2005-07-19
DE10240563A1 (en) 2004-03-11
CA2496845A1 (en) 2004-03-25
DE50302442D1 (en) 2006-04-20
UA79809C2 (en) 2007-07-25
US7131866B2 (en) 2006-11-07
EP1540773B1 (en) 2006-02-15
JP4348296B2 (en) 2009-10-21
JP2005537629A (en) 2005-12-08
US20050260878A1 (en) 2005-11-24

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