EP0169358A2 - Electrical connector for the transmision of measuring signals - Google Patents

Electrical connector for the transmision of measuring signals Download PDF

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Publication number
EP0169358A2
EP0169358A2 EP85107166A EP85107166A EP0169358A2 EP 0169358 A2 EP0169358 A2 EP 0169358A2 EP 85107166 A EP85107166 A EP 85107166A EP 85107166 A EP85107166 A EP 85107166A EP 0169358 A2 EP0169358 A2 EP 0169358A2
Authority
EP
European Patent Office
Prior art keywords
plug
molded part
metallic
clamping ring
electrical connector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP85107166A
Other languages
German (de)
French (fr)
Other versions
EP0169358A3 (en
Inventor
Fritz Schwarz
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.)
Evonik Operations GmbH
Original Assignee
Degussa 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 Degussa GmbH filed Critical Degussa GmbH
Publication of EP0169358A2 publication Critical patent/EP0169358A2/en
Publication of EP0169358A3 publication Critical patent/EP0169358A3/en
Withdrawn legal-status Critical Current

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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
    • H01R13/46—Bases; Cases
    • H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure

Definitions

  • the invention relates to a plug connection for the transmission of measurement signals, in particular for nuclear facilities, consisting of a plug and a mating connector, which are each pressure-tightly attached to supply cables or sensors and are equipped with a screw connection.
  • plug connections between sensors and their supply cables are often required, which have to withstand high temperatures (e.g. 180 ° C), high pressures (e.g. 7 bar), steam, radiation and mechanical shocks.
  • high temperatures e.g. 180 ° C
  • high pressures e.g. 7 bar
  • steam e.g. 7 bar
  • radiation and mechanical shocks e.g. 7 bar
  • Such conditions occur, for example, in nuclear plants in the event of faults, where thermocouples, resistance thermometers, pressure transducers and the like must continue to function.
  • a cable connection for temperature measuring elements consisting of a plug connection with plug and mating connector, which are attached tightly to cables and equipped with a screw connection. Sealing is ensured by a spiral spring, which is supported on an elastic stopper and an O-ring which is located in the screw connection.
  • the connector is connected to the supply cable via a metallic molded part and provided with a union nut and that the mating connector carries a screw receptacle into which the molded part protrudes and in its conical inlet a metallic clamping ring with a wedge-shaped cross section and a metallic clamping ring are arranged with a substantially rectangular or trapezoidal cross section.
  • the metallic molded part is preferably connected to the supply cable via curls and is covered with a shrink tube in the area of the curls.
  • the plug connection according to the invention is particularly suitable for use in nuclear plants if high radiation fields, superheated steam, mechanical vibrations and high pressures can occur in the event of a malfunction.
  • the connector works safely and reliably.
  • the figure schematically shows an exemplary embodiment of the invention.
  • the connector consists of a plug (1), which is connected to the supply cable (8) in a pressure-resistant and strain-relieved manner via a metallic molded part (7) by means of curls (12), and a mating connector (2) to which, for example, a protective tube (10) is attached with a measuring insert (11).
  • the mating connector (2) carries a screw receptacle (3), which in this case is welded to the protective tube (10).
  • the union nut (4) presses a metallic clamping ring (6) with a wedge-shaped cross-section and a metallic clamping ring (5) with a trapezoidal cross-section into the conical inlet of the screw connection receptacle (3), into which the metallic molded part (7) also projects.
  • This type of screwing has the advantage that the rotary movement of the union nut (4) is converted into an axial movement by the clamping ring (5) absorbing the torque and not passing it on to the wedge-shaped clamping ring (6).
  • the seal is thus axial and not rotating, so that no turning grooves can occur on the entire sealing surface.
  • the seal with the two elastic clamping rings in cooperation with the metallic molded part (7) ensures that the tightness is maintained when temperature fluctuations, mechanical shocks and vibrations occur.
  • the connection is easily detachable and can be put together at any time.
  • the area of the curls (12) is advantageously covered with a shrink tube (9).
  • the spaces between the connector (1) and cable (8) can be filled with an electrically insulating, elastic compound.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

An electrical connector for the transmission of measuring signals is described, which is applicable particularly in nuclear installations since it also withstands failure situations. It consists of a plug and socket which are joined together by means of a union holder, a screw cap and two metallic clamping rings.

Description

Die Erfindung betrifft eine Steckverbindung für die Übertragung von Meßsignalen, insbesondere für kerntechnische Anlagen, bestehend aus einem Stecker und einem Gegenstecker, die jeweils druckdicht an Zuleitungskabeln oder Meßwertgebern angebracht und mit einer Verschraubung ausgestattet sind.The invention relates to a plug connection for the transmission of measurement signals, in particular for nuclear facilities, consisting of a plug and a mating connector, which are each pressure-tightly attached to supply cables or sensors and are equipped with a screw connection.

In der Praxis werden oft Steckverbindungen zwischen Meßwertgebern und ihren Zuleitungskabeln benötigt, die hohen Temperaturen (z.B. 180 °C), hohen Drucken (z.B. 7 bar), Dampfeinwirkungen, Bestrahlungen und mechanischen Erschütterungen standhalten müssen. Solche Bedingungen treten beispielsweise in kerntechnischen Anlagen bei Störfällen auf, wo Thermoelemente, Widerstandsthermometer, Druckaufnehmer und dgl. weiterhin funktionieren müssen.In practice, plug connections between sensors and their supply cables are often required, which have to withstand high temperatures (e.g. 180 ° C), high pressures (e.g. 7 bar), steam, radiation and mechanical shocks. Such conditions occur, for example, in nuclear plants in the event of faults, where thermocouples, resistance thermometers, pressure transducers and the like must continue to function.

Aus dem DE-GM 83 35 959 ist eine Kabelverbindung für Temperaturmeßelemente bekannt, bestehend aus einer Steckverbindung mit Stecker und Gegenstecker, die dicht an Kabeln angebracht und mit einer Verschraubung ausgestattet sind. Die Abdichtung wird durch eine Spiralfeder gewährleistet, die sich auf einen elastischen Pfropfen abstützt und einen 0-Ring der sich in der Verschraubung befindet.From DE-GM 83 35 959 a cable connection for temperature measuring elements is known, consisting of a plug connection with plug and mating connector, which are attached tightly to cables and equipped with a screw connection. Sealing is ensured by a spiral spring, which is supported on an elastic stopper and an O-ring which is located in the screw connection.

Es war daher Aufgabe der vorliegenden Erfindung, eine Steckverbindung für die Übertragung von Meßsignalen, insbesondere für kerntechnische Anlagen zu entwickeln, bestehend aus einem Stecker und einem Gegenstecker, die jeweils druckdicht an Zuleitungskabeln oder Meßwertgebern angebracht und mit einer Verschraubung ausgestattet sind, die kerntechnischen Strahlungen, hohen Temperaturen, hohen Drücken und Wasserdampf standhält und die Funktionsfähigkeit der Meßanzeigen gewährleistet.It was therefore an object of the present invention to develop a plug-in connection for the transmission of measurement signals, in particular for nuclear plants, consisting of a plug and a mating plug, which are each pressure-tightly attached to supply cables or sensors and equipped with a screw connection, the nuclear radiation, withstands high temperatures, high pressures and water vapor and guarantees the functionality of the measuring displays.

Diese Aufgabe wurde erfindungsgemäß dadurch gelöst, daß der Stecker mit dem Zuleitungskabel über ein metallisches Formteil verbunden und mit einer Überwurfmutter versehen ist und daß der Gegenstecker eine Verschraubungsaufnahme trägt, in die das Formteil hineinragt und in deren konischen Einlauf ein metallischer Klemmring mit keilförmigen Querschnitt und ein metallischer Klemmring mit im wesentlichen rechteckigen oder trapezförmigen Querschnitt angeordnet sind.This object was achieved in that the connector is connected to the supply cable via a metallic molded part and provided with a union nut and that the mating connector carries a screw receptacle into which the molded part protrudes and in its conical inlet a metallic clamping ring with a wedge-shaped cross section and a metallic clamping ring are arranged with a substantially rectangular or trapezoidal cross section.

Vorzugsweise ist das metallische Formteil über Einrollungen mit dem Zuleitungskabel verbunden und im Bereich der Einrollungen mit einem Schrumpfschlauch überzogen.The metallic molded part is preferably connected to the supply cable via curls and is covered with a shrink tube in the area of the curls.

Durch die Verwendung von ausschließlich metallischen Dichtelementen eignet sich die erfindungsgemäße Steckverbindung besonders für die Anwendung in kerntechnischen Anlagen, wenn im Störfall hohe Strahlungsfelder, Heißdampf, mechanische Erschütterungen und hohe Drücke auftreten können. Die Steckverbindung arbeitet sicher und zuverlässig.Through the use of exclusively metallic sealing elements, the plug connection according to the invention is particularly suitable for use in nuclear plants if high radiation fields, superheated steam, mechanical vibrations and high pressures can occur in the event of a malfunction. The connector works safely and reliably.

Die Abbildung zeigt schematisch eine beispielhafte Ausführungsform der Erfindung.The figure schematically shows an exemplary embodiment of the invention.

Die Steckverbindung besteht aus einem Stecker (1), der über ein metallisches Formteil (7) mittels Einrollungen (12) mit dem Zuleitungskabel (8) druckfest und zugentlastet verbunden ist, und einem Gegenstecker (2), an den beispielsweise ein Schutzrohr (10) mit einem Meßeinsatz (11) angebracht ist. Der Gegenstecker (2) trägt eine Verschraubungsaufnahme (3), die in diesem Fall an das Schutzrohr (10) angeschweißt ist. Die Überwurfmutter (4) presst einen metallischen Klemmring (6) mit keilförmigen Querschnitt und einem metallischen Klemmring (5) mit trapezförmigen Querschnitt in den konischen Einlauf der Verschraubungsaufnahme (3), in die auch das metallische Formteil (7) hineinragt. Diese Art der Verschraubung hat den Vorteil, daß die Drehbewegung der Überwurfmutter (4) in eine axiale Bewegung verwandelt wird, indem der Klemmring (5) das Drehmoment aufnimmt und nicht an den keilförmigen Klemmring (6) weitergibt. Die Abdichtung erfolgt also axial und nicht drehend, so daß am der gesammten Dichtfläche keine Drehriefen auftreten können.The connector consists of a plug (1), which is connected to the supply cable (8) in a pressure-resistant and strain-relieved manner via a metallic molded part (7) by means of curls (12), and a mating connector (2) to which, for example, a protective tube (10) is attached with a measuring insert (11). The mating connector (2) carries a screw receptacle (3), which in this case is welded to the protective tube (10). The union nut (4) presses a metallic clamping ring (6) with a wedge-shaped cross-section and a metallic clamping ring (5) with a trapezoidal cross-section into the conical inlet of the screw connection receptacle (3), into which the metallic molded part (7) also projects. This type of screwing has the advantage that the rotary movement of the union nut (4) is converted into an axial movement by the clamping ring (5) absorbing the torque and not passing it on to the wedge-shaped clamping ring (6). The seal is thus axial and not rotating, so that no turning grooves can occur on the entire sealing surface.

Die Abdichtung mit den beiden elastischen Klemmringen im Zusammenwirken mit dem metallischen Formteil (7) sorgt dafür, daß die Dichtigkeit erhalten bleibt, wenn Temperaturschwankungen, mechanische Erschütterungen und Schwingungen auftreten. Die Verbindung ist leicht lösbar und jederzeit zusammenfügbar.The seal with the two elastic clamping rings in cooperation with the metallic molded part (7) ensures that the tightness is maintained when temperature fluctuations, mechanical shocks and vibrations occur. The connection is easily detachable and can be put together at any time.

Vorteilhafterweise wird der Bereich der Einrollungen (12) mit einem Schrumpfschlauch (9) überzogen. Die Zwischenräume zwischen Stecker (1) und Kabel (8) können mit einer elektrisch isolierenden, elastischen Masse ausgegossen werden.The area of the curls (12) is advantageously covered with a shrink tube (9). The spaces between the connector (1) and cable (8) can be filled with an electrically insulating, elastic compound.

Claims (2)

1. Steckverbindung für die Übertragung von Meßsignalen, insbesondere für kerntechnische Anlagen, bestehend aus einem Stecker und einem Gegenstecker, die jeweils druckdicht an Zuleitungskabeln oder Meßwertgebern angebracht und mit einer Verschraubung ausgestattet sind, dadurch gekennzeichnet,
daß der Stecker (1) mit dem Zuleitungskabel (8) über ein metallisches Formteil (7) verbunden und mit einer Überwurfmutter (4) versehen ist und daß der Gegenstecker (2) eine Verschraubungsaufnahme (3) trägt, in die das Formteil (7) hineinragt und in deren konischen Einlauf ein metallischer Klemmring (6) mit keilförmigen Querschnitt und ein metallischer Klemmring (5) mit im wesentlichen rechteckigen oder trapezförmigen Querschnitt angeordnet sind.1. Plug connection for the transmission of measurement signals, in particular for nuclear facilities, consisting of a plug and a mating plug, which are each pressure-tightly attached to supply cables or sensors and equipped with a screw connection, characterized in that
that the plug (1) is connected to the supply cable (8) via a metallic molded part (7) and is provided with a union nut (4) and that the mating plug (2) carries a screw receptacle (3) into which the molded part (7) protrudes and in the conical inlet a metallic clamping ring (6) with a wedge-shaped cross section and a metallic clamping ring (5) with an essentially rectangular or trapezoidal cross section are arranged. 2. Steckverbindung nach Anspruch 1, dadurch gekennzeichnet,
daß das Formteil (7) über Einrollungen (12) mit dem Zuleitungskabel (8) verbunden und im Bereich der Einrollungen (12) mit einem Schrumpfschlauch (9) überzogen ist.2. Plug connection according to claim 1, characterized in
that the molded part (7) is connected to the supply cable (8) via curls (12) and is covered with a shrink tube (9) in the area of the curls (12).
EP85107166A 1984-07-27 1985-06-11 Electrical connector for the transmision of measuring signals Withdrawn EP0169358A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8422389U 1984-07-27
DE19848422389 DE8422389U1 (en) 1984-07-27 1984-07-27 Plug connection for the transmission of measurement signals

Publications (2)

Publication Number Publication Date
EP0169358A2 true EP0169358A2 (en) 1986-01-29
EP0169358A3 EP0169358A3 (en) 1987-11-11

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ID=6769243

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EP85107166A Withdrawn EP0169358A3 (en) 1984-07-27 1985-06-11 Electrical connector for the transmision of measuring signals

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EP (1) EP0169358A3 (en)
DE (1) DE8422389U1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8713477U1 (en) * 1987-10-07 1987-12-03 Industrieanlagen-Betriebsgesellschaft Mbh, 8012 Ottobrunn, De

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3783178A (en) * 1972-08-03 1974-01-01 Gen Signal Corp Expansion joint for connecting rigid conduit with grounding continuity
DE8335959U1 (en) * 1983-12-15 1984-03-29 W.C. Heraeus Gmbh, 6450 Hanau Cable connection for a temperature measuring element
FR2533770A1 (en) * 1982-09-29 1984-03-30 Whittaker Corp ASSEMBLY WITH CONNECTOR AND CABLE SEALS HERMETICALLY AND HEAT-RESISTANT

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3783178A (en) * 1972-08-03 1974-01-01 Gen Signal Corp Expansion joint for connecting rigid conduit with grounding continuity
FR2533770A1 (en) * 1982-09-29 1984-03-30 Whittaker Corp ASSEMBLY WITH CONNECTOR AND CABLE SEALS HERMETICALLY AND HEAT-RESISTANT
DE8335959U1 (en) * 1983-12-15 1984-03-29 W.C. Heraeus Gmbh, 6450 Hanau Cable connection for a temperature measuring element

Also Published As

Publication number Publication date
DE8422389U1 (en) 1984-10-18
EP0169358A3 (en) 1987-11-11

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