DE3139954A1 - Device for conducting electrical signals - Google Patents

Device for conducting electrical signals

Info

Publication number
DE3139954A1
DE3139954A1 DE19813139954 DE3139954A DE3139954A1 DE 3139954 A1 DE3139954 A1 DE 3139954A1 DE 19813139954 DE19813139954 DE 19813139954 DE 3139954 A DE3139954 A DE 3139954A DE 3139954 A1 DE3139954 A1 DE 3139954A1
Authority
DE
Germany
Prior art keywords
jacket
surrounding
insulating jacket
conductor
conductive material
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.)
Ceased
Application number
DE19813139954
Other languages
German (de)
Inventor
Edwin Dipl.-Phys. Dr. 7410 Reutlingen Muz
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.)
Nicolay GmbH
Original Assignee
Nicolay 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 Nicolay GmbH filed Critical Nicolay GmbH
Priority to DE19813139954 priority Critical patent/DE3139954A1/en
Publication of DE3139954A1 publication Critical patent/DE3139954A1/en
Ceased legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/02Cables with twisted pairs or quads
    • H01B11/06Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • H01B11/10Screens specially adapted for reducing interference from external sources
    • H01B11/1058Screens specially adapted for reducing interference from external sources using a coating, e.g. a loaded polymer, ink or print

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Abstract

A device for conducting electrical signals has a conductor (1), an insulating jacket (3) surrounding this conductor, a sleeve (4) consisting of conductive material surrounding the insulating jacket, a contact jacket (5) surrounding the sleeve, and an outer jacket (6) surrounding the contact jacket. In order largely to prevent electrostatic interference caused by mutual movements of the sleeves and jackets surrounding the conductor, an additional sleeve (2), consisting of conductive material, is arranged between the conductor (1) and the insulating jacket (3), and is firmly connected to the insulating jacket. Said insulating jacket (3) is likewise firmly connected to the sleeve (4) surrounding it. <IMAGE>

Description

"Vorrichtung zum Leiten elektrischer Signale" "Device for conducting electrical signals"

Die Erfindung bezieht sich auf eine Vorrichtung entsprechend dem Oberbegriff des Anspruches lO zwei einer bekannten Vorrichtung der vorgenannten Art ent stehen durch Reibung zwischen dem Isoliermantel und der Hülle aus leitendem Werkstoff, welche den diese Hülle um gebenden Kontaktmantel trägt, elektrostatische Störungen, die schwache elektrische Signale nachteilig beeinflussen, wie sie insbesondere bei der Aufnahme von Elektrokardiogrammen, Encephalogrammen und dgl. entstehen (DE-OS 26 54 846).The invention relates to a device according to the preamble of claim 10 two of a known device of the aforementioned type are ent due to friction between the insulating jacket and the sheath made of conductive material, which carries the contact jacket surrounding this cover, electrostatic interference, which adversely affect weak electrical signals, such as those in particular at the recording of electrocardiograms, encephalograms and the like. arise (DE-OS 26 54 846).

Der Erfindung liegt die Aufgabe zugrunde, elektrostatische Störungen durch gegenseitige Bewegungen von den Leiter umgebenden Hüllen und Mänteln weitgehend zu vermeiden Diese Aufgabe wird durch die Merkmale im Kennzeichnungsteil des Anspruches 1 erfindungsgemäß gelöst. Die zusätzlich aus leitendem Werkstoff bestehende und mit dem Isoliermantel fest verbundene Hülle verhindert eine Reibung zwischen dem metallischen Innenleiter und dem Isoliermantel, wodurch Bewegungsspannungen vermieden werden. Durch die feste Verbindung zwischen der zusätzlichen Hülle und dem Innenleiter entsprechend Anspruch 2 wird ebenfalls eine Reibung zwischen diesen beiden vermieden.The invention is based on the problem of electrostatic interference largely due to mutual movements of the sheaths and sheaths surrounding the conductor to avoid This task is made easier by the characteristics in the identification part of the Claim 1 solved according to the invention. The additionally made of conductive material and with the insulating jacket firmly connected sheath prevents friction between the metallic inner conductor and the insulating jacket, which prevents movement stresses will. Due to the solid connection between the additional cover and the inner conductor according to claim 2, friction between these two is also avoided.

Die Merkmale des Anspruches 3 betreffen eine Vorrichtung mit mehreren Innenleitern. Hierdurch wird Reibung zwischen dem Isoliermantel und der äußeren Hülle aus leitendem Werkstoff und damit zwischen zwei Oberflächen vermieden, von denen die eine isolierend ist.The features of claim 3 relate to a device with several Inner ladders. This creates friction between the insulating jacket and the outer Cover made of conductive material and thus avoided between two surfaces of which one is isolating.

Eine gute Haftung zwischen dem Isoliermantel und mindestens einer der Hüllen aus leitendem Werkstoff wird durch die Merkmale des Anspruches 4 erreicht. Hierbei tritt ein Verkleben zwischen zwei einander unmittelbar umgebenden Teilen auf, was seither vermieden wurde, da Schwierigkeiten bei der Verarbeitung auftreten.Good adhesion between the insulating jacket and at least one the sheaths made of conductive material is achieved by the features of claim 4. In this case, sticking occurs between two parts immediately surrounding one another on what has since been avoided due to processing difficulties.

Weitere Vorteile ergeben sich aus der Beschreibung und der Zeichnung. In dieser sind zwei Vorrichtungen zum Leiten schwacher elektrischer Signale als Ausführungsbeispiele des Gegenstandes der Erfindung im Schräg bild schematisch dargestellt. Es zeigen Fig. 1 eine Vorrichtung mit einem Innenleiter, Fig. 2 eine Vorrichtung mit drei Innenleitern.Further advantages emerge from the description and the drawing. In this are two devices for conducting weak electrical signals as Embodiments of the subject matter of the invention shown schematically in the oblique image. 1 shows a device with an inner conductor, and FIG. 2 shows a device with three inner conductors.

Ein Innenleiter 1, der aus flexiblen Feindrahtlitzen oder aus Lahnleiterlitzen bestehen kann, ist von einer darauf aufgespritzen Hülle 2 aus leitendem Werkstoff umgeben und vorzugsweise fest damit verbunden. Die Hülle 2 ist von einem fest darauf aufgespritzten Isoliermantel 3 umgeben, den wiederum eine fest darauf aufgespritzte Hülle 4 aus leitendem Werkstoff umgibt. Zwischen der Hülle 2 und dem Isoliermantel 3 sowie zwischen dem Isoliermantel 3 und der Hülle 4 wird infolge der jeweiligen festen Verbindung jede Reibung vermieden. Zwischen der Hülle 4 und einem Außen mantel 6 befindet sich ein abschirmender Kontaktmantel 5, der aus einem Geflecht, einer Mehrfachwendel oder dgl.An inner conductor 1 made from flexible fine wire strands or from Lahn conductor strands can consist of a shell 2 sprayed onto it made of conductive material surrounded and preferably firmly connected to it. The sheath 2 is of one fixed Surrounded thereon sprayed insulating jacket 3, which in turn is firmly sprayed onto it Sheath 4 made of conductive material surrounds. Between the shell 2 and the insulating jacket 3 and between the insulating jacket 3 and the sheath 4 is due to the respective fixed connection avoids any friction. Between the shell 4 and an outer jacket 6 is a shielding contact jacket 5, which consists of a braid, a Multiple helix or the like.

betehen kann.can pray.

Die Hüllen 2 und 4 aus leitendem Werkstoff bestehen aus einem leitfähigen Kunststoff auf der Basis von Polyethylen niederes oder hoher Dichte, Polypropylen, EthylenVinyl acetat-Copolymer oder Polyvinylchlorid. Der Isoliermantel 3 und der Außenmantel 6 können aus den gleichen Kunststoffen bestehen, die an sich Isolierstoffe sind, aber leitfähig gemacht werden können.The sheaths 2 and 4 made of conductive material consist of a conductive material Plastic based on low or high density polyethylene, polypropylene, Ethylene vinyl acetate copolymer or polyvinyl chloride. The insulating jacket 3 and the Outer jacket 6 can consist of the same plastics that are insulating materials are, but can be made conductive.

Bei der Vorrichtung nach Fig. 2 ist jeder der drei Innenleiter 1 für sich sowohl mit einer Hülle 2 aus leitendem Werkstoff, einem Isoliermantel 3 und einer zweiten Hülle 4 aus leitendem Werkstoff umgeben, wobei der Isoliermantel 3 auf seiner Innenseite mit der Hülle 2 und auf seiner Außenseite mit der Hülle 4 jeweils fest miteinander verbunden ist0 Die drei Hüllen 4 aus leitendem Werkstoff umgibt ein einziger abschirmender Kontaktmantel 5a, der sieh in einem Außenmantel 6a befindet.In the device of FIG. 2, each of the three inner conductors 1 is for with both a sheath 2 made of conductive material, an insulating jacket 3 and surrounded by a second sheath 4 made of conductive material, the insulating jacket 3 on its inside with the casing 2 and on its outside with the casing 4 each is firmly connected to each other0 The three sheaths 4 made of conductive material surrounds a single shielding contact jacket 5a, which see in an outer jacket 6a is located.

L e e r s e i t eL e r s e i t e

Claims (4)

Ans pru ehe Vorrichtung zum Leiten elektrischer Signale mit einem Leiter (1), mit einem den Leiter umgebenden Isoliert mantel (3), mit einer den Isoliermantel umgebenden Hülle (4) aus leitendem Werkstoff, mit einem die Hülle umgebenden Kontaktmantel (5) und mlt einem den Kontakt mantel umgebenden Außenmantel (6), dadurch g e k e n n ze ic hn et , daß zwischen dem Leiter (1) und dem Isoliermantel (3) eine zusätzliche Hülle (2) aus leitendem Werkstoff angeordnet und mit dem Isolier mantel fest verbunden ist und daß der Isoliermantel mit der ihn umgebenden Hülle ebenfalls fest verbunden ist. Before testing a device for conducting electrical signals with a Head (1), with an insulating jacket surrounding the conductor (3), with an insulating jacket surrounding sheath (4) made of conductive material, with a contact jacket surrounding the sheath (5) and an outer jacket (6) surrounding the contact jacket, thereby g e k e n n ze ic hn et that between the conductor (1) and the insulating jacket (3) an additional Sheath (2) made of conductive material and firmly connected to the insulating jacket is and that the insulating jacket is also firmly connected to the shell surrounding it is. 2. Vorrichtung nach Anspruch 1, dadurch g e k e n n z e i c h -n e t , daß die zusätzliche Hülle (2) mit dem Leiter (1) fest verbunden ist.2. Apparatus according to claim 1, characterized in that g e k e n n z e i c h -n e t that the additional sheath (2) is firmly connected to the conductor (1). 3. Vorrichtung nach Anspruch 1 oder 2 mit mehreren Leitern (1), von denen jeder mit einem Isoliermantel (3) umgeben ist, wobei alle Isoliermäntel von einem einzigen Kontaktmantel (5a) umgeben sind und dieser vom Außen mantel (6a) umgeben ist, dadurch g e k e n n z e i c h n e t , daß jeder Leiter (1) außerdem jeweils für sich von den beiden Hüllen (2, 4) umgeben ist.3. Apparatus according to claim 1 or 2 with a plurality of conductors (1) of each of which is surrounded by an insulating jacket (3), all insulating jackets of a single Contact jacket (5a) are surrounded and this from the outside Sheath (6a) is surrounded, in that each conductor (1) is also surrounded by the two sheaths (2, 4). 4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch g e k e n n z e i c h n e t w das der Isoliermantel (3) und die beiden, aus leitendem Werkstoff bestehenden Hüllen (2, 4) jweils aus dem gleichen Grundwerkstoff bestehen.4. Device according to one of the preceding claims, characterized in that g e k e n n z e i c h n e t w that the insulating jacket (3) and the two, made of conductive Material existing sleeves (2, 4) each consist of the same base material.
DE19813139954 1981-10-08 1981-10-08 Device for conducting electrical signals Ceased DE3139954A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19813139954 DE3139954A1 (en) 1981-10-08 1981-10-08 Device for conducting electrical signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813139954 DE3139954A1 (en) 1981-10-08 1981-10-08 Device for conducting electrical signals

Publications (1)

Publication Number Publication Date
DE3139954A1 true DE3139954A1 (en) 1983-04-28

Family

ID=6143641

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813139954 Ceased DE3139954A1 (en) 1981-10-08 1981-10-08 Device for conducting electrical signals

Country Status (1)

Country Link
DE (1) DE3139954A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6815012B2 (en) * 1999-12-28 2004-11-09 Alstom Technology Ltd Method for producing a high-quality insulation for electric conductors or conductor bundles of rotating electrical machines by means of thermal spraying

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2430318A1 (en) * 1974-06-21 1976-01-08 Siemens Ag Electrical cables with electrostatic shielding layers - contg acetylene black and copolymer of ethylene, butyl acrylate and opt acrylic acid
DE2654846A1 (en) * 1976-12-03 1978-06-08 Hellige Gmbh Single-or multiconductor, screened electric lead - has screening layer with closely fitting contact conductor, PVC or polyurethane layers and may include polyethylene

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2430318A1 (en) * 1974-06-21 1976-01-08 Siemens Ag Electrical cables with electrostatic shielding layers - contg acetylene black and copolymer of ethylene, butyl acrylate and opt acrylic acid
DE2654846A1 (en) * 1976-12-03 1978-06-08 Hellige Gmbh Single-or multiconductor, screened electric lead - has screening layer with closely fitting contact conductor, PVC or polyurethane layers and may include polyethylene

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6815012B2 (en) * 1999-12-28 2004-11-09 Alstom Technology Ltd Method for producing a high-quality insulation for electric conductors or conductor bundles of rotating electrical machines by means of thermal spraying

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8110 Request for examination paragraph 44
8131 Rejection