EP0893804A2 - Kabel mit Aussenleiter aus mehreren Elementen - Google Patents
Kabel mit Aussenleiter aus mehreren Elementen Download PDFInfo
- Publication number
- EP0893804A2 EP0893804A2 EP98400440A EP98400440A EP0893804A2 EP 0893804 A2 EP0893804 A2 EP 0893804A2 EP 98400440 A EP98400440 A EP 98400440A EP 98400440 A EP98400440 A EP 98400440A EP 0893804 A2 EP0893804 A2 EP 0893804A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cable
- elements
- insulation
- polygon
- outer conductor
- 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
Links
- 239000004020 conductor Substances 0.000 title claims abstract description 44
- 238000009413 insulation Methods 0.000 claims description 34
- 238000005253 cladding Methods 0.000 claims description 17
- 239000004033 plastic Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- 239000011888 foil Substances 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 abstract 4
- 239000010410 layer Substances 0.000 description 24
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000004026 adhesive bonding Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
- H01B11/1834—Construction of the insulation between the conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
- H01B11/1808—Construction of the conductors
Definitions
- the invention relates to a cable according to the preamble of claim 1.
- Cables often consist of one or more Inner conductors, an insulation that the inner conductor encloses, and an outer conductor resting on it, which usually forms an electrical shield.
- One such structure show z.
- an outer conductor consists of individual, elongated Elements with preferably approximately circular Cross-section, especially wires, strands or Optical fibers.
- Those lying on insulation Elements can be a single or multiple of each other form and run independent external conductors essentially in the longitudinal direction of the cable, with one turn around the cable axis or a corrugation for length compensation is possible.
- the outer conductor is on the outside surrounded by a coating that contains its elements as well encloses the insulation together and on both is present.
- the cable jacket is the Cladding layer.
- a metal foil rests as a sheath on outer conductor wires and both together form the shield of the inner conductor or conductors. If rigid plastic insulation is used, there is always a risk that the elements of the Outer conductor during the manufacture or handling of the Move the cable, especially when there is a bend. Is it the elements of the outer conductor? Shielding wires of a coaxial cable, the shielding in be significantly impaired as a result, such as when the shield wires of the cable on the inside of one Bend.
- the invention has developed a cable that is easy to manufacture Task given the elements of the outer conductor regardless of the mechanical properties of the Insulation against displacements around the cable axis are fixed.
- the idea of the invention is based on the outer conductor the extent of the insulation by their shape in Interact with the shell layer.
- the purpose of the cross section of the insulation is perpendicular to The shape of a cable axis in its outer contours Polygons on.
- the elements of the outer conductor are located in the area of the sides of the polygon while the Envelope at the corners of the polygon and on the Outside of the elements.
- the elements of the External conductors are thus in their position on the Insulation fixed, in particular a shift across the corners of the polygon from the cladding layer is prevented.
- Suitable elements are, for example Wires or strands, for example made of copper, or Optical fibers, which may also be between let electrical shield wires run.
- the covering layer is expediently a tape or a film, which are preferably introduced longitudinally into the cable while laying around the insulation and the elements becomes. Adjacent edges of the cladding layer preferably welded to butt or overlapping each other. In this way, it is particularly waterproof Completion of the interior of the coating layer against moisture possible that penetrates into the cable sheath.
- the formation of the cable inside the polygon is complete largely free within the scope of the invention. Especially can be different materials for the Use insulation, such as solid or foamed Plastics. There is also a multilayer Insulation possible, such as a plastic on the A final film or a surface Conductive layer is located. Likewise, the cable can be one or contain several inner conductors, which are both can be electrical as well as optical conductors.
- the advantage of the proposed cable is that secure fixation of the outer conductor on the circumference of the Insulation.
- the definition can be made regardless of Make insulation material in a simple way, by placing the coating on the outer conductors and the Insulation is applied.
- a shift in Outer conductor elements, for example at a bend in the cable, is therefore excluded. Shielding in particular of coaxial cables can be considerably in this way improve. Also when connecting cables with each other or with connection elements Defined arrangement of the outer conductor is an advantage.
- the coating is there expediently a metal foil, such as a steel or Aluminum foil, or a two or more layers Metal-plastic composite film.
- the covering layer is introduced into the cable as a tape and wrapped around the insulation, theirs overlap contiguous edges useful for manufacturing to simplify. It is preferably an in Cable longitudinal direction, its parallel to the Edges of the cable axis overlap each other. in the Case of a metal-plastic composite film as a covering layer Both surfaces of the film are expediently electrical conductive to a mutual in the overlap area electrical contact and thus a good shielding effect to ensure. The gluing or is conceivable Welding of the overlapping edges.
- the cladding layer is preferably in the range the corners of the polygon fixed to the insulation. To this is done by gluing or welding between the cladding layer and insulation suggested that is easy to do. The displacement of an element of the outer conductor is over a corner of the polygon thus definitely excluded.
- the outer conductor if necessary together with the covering layer, forms a shield, is the even arrangement of its elements on the Surface of the insulation is an advantage.
- the number the elements per unit area are appropriate on each side of the polygon the same size.
- a regular polygon as a cross section of the Insulation is an optimal approximation.
- the elements For the purpose of length compensation, for example in the case of bends, Tensile loads or temperature differences of the cable, it is possible that the elements have a corrugation perpendicular the cable axis.
- the coaxial cable comprises one or more inner conductors 1, one of several elements 2 and a cladding layer 3 formed outer conductor and an intermediate one Insulation 4, such as a solid or foamed Plastic.
- the outside of the cable is covered by a jacket 5 completed.
- Wires are useful as elements 2; for the cladding layer is a metal-plastic-metal composite film suitable.
- the surface 6 of the insulation 4 has in its Cross section perpendicular to the longitudinal direction of the cable Shape of a polygon, in the example of an octagon. At its corners 7 there is a covering layer 3 and insulation 4 connected by gluing. In this way it is excluded that the individual elements 2 of the Outer conductor between different sides 8 of the Let surface 6 move.
- the position of the cladding layer 3 is approximately with that through the Corners 7 defined radius of the polygon.
- a good approximation can be achieved by the maximum Distance 9 of the sides 8 of the polygon from its periphery is approximately equal to the diameter of the elements 2.
- the position of the cladding layer 3 falls Frame the drawing accuracy with the perimeter. In particular in the case of two or more elements 2 however, slight deviations are conceivable on each side 8.
Landscapes
- Insulated Conductors (AREA)
- Communication Cables (AREA)
- Waveguides (AREA)
Abstract
Description
Claims (10)
- Kabel, insbesondere Koaxialkabel, mit einem Innenleiter (1), einer Isolierung (4), die den Innenleiter (1) umschließt, einem Außenleiter, der mehrere, langgestreckte, im wesentlichen in Kabellängsrichtung verlaufende Elemente (2) umfaßt, die auf der Isolierung (4) aufliegen, sowie mit einer Hüllschicht (3), welche an den Elementen (2) des Außenleiters und an der Isolierung (4) anliegt und sie umschließt, dadurch gekennzeichnet, daß der Querschnitt der Oberfläche (6) der Isolierung (4) senkrecht zur Längsrichtung des Kabels ein Polygon ist und die Hüllschicht (3) an den Ecken (7) des Polygons anliegt.
- Kabel nach Anspruch 1, dadurch gekennzeichnet, daß die Elemente (2) und die Hüllschicht (3) elektrisch leitfähig sind und in elektrischem Kontakt zueinander stehen.
- Kabel nach Anspruch 2, dadurch gekennzeichnet, daß die Hüllschicht (3) eine Metallfolie oder eine Metall-Kunststoff-Verbundfolie ist.
- Kabel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß aneinander grenzende Ränder der Hüllschicht (3) einander überlappen.
- Kabel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Hüllschicht (3) an der Isolierung (4) fixiert ist.
- Kabel nach Anspruch 5, dadurch gekennzeichnet, daß die Hüllschicht (3) mit der Isolierung (4) verschweißt oder verklebt ist.
- Kabel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Zahl der Elemente (2) je Flächeneinheit auf jeder Seite (8) des Polygons gleich groß ist.
- Kabel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Polygon ein regelmäßiges Polygon ist.
- Kabel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der maximale Abstand (9) der Seiten (8) des Polygons von seinem Umkreis näherungsweise gleich dem Durchmesser der Elemente (2) ist.
- Kabel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Elemente (2) eine Wellung senkrecht der Kabellängsrichtung aufweisen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19731792A DE19731792A1 (de) | 1997-07-24 | 1997-07-24 | Kabel mit Außenleiter aus mehreren Elementen |
DE19731792 | 1997-07-24 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0893804A2 true EP0893804A2 (de) | 1999-01-27 |
EP0893804A3 EP0893804A3 (de) | 1999-02-24 |
EP0893804B1 EP0893804B1 (de) | 2001-11-28 |
Family
ID=7836729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98400440A Expired - Lifetime EP0893804B1 (de) | 1997-07-24 | 1998-02-23 | Kabel mit Aussenleiter aus mehreren Elementen |
Country Status (3)
Country | Link |
---|---|
US (1) | US6294728B1 (de) |
EP (1) | EP0893804B1 (de) |
DE (2) | DE19731792A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE520545C2 (sv) * | 2000-11-29 | 2003-07-22 | Ericsson Telefon Ab L M | Förfarande för att anordna ett slutet utrymme för optofibrer och/eller optofiberband och skarvar på optofibrerna och/eller optofiberbanden samt anordning |
US20110286779A1 (en) | 2010-05-24 | 2011-11-24 | Kwarta Brian J | Electrophotographic print binding method and system |
US8548371B2 (en) | 2010-05-24 | 2013-10-01 | Eastman Kodak Company | Electrophotographic print binding system |
US20170069409A1 (en) * | 2015-09-03 | 2017-03-09 | Commscope Technologies Llc | Coaxial cable with outer conductor adhered to dielectric layer and/or jacket |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2353121A1 (fr) * | 1976-05-26 | 1977-12-23 | Filotex Sa | Cable electrique a structure coaxiale |
FR2735606A1 (fr) * | 1995-06-16 | 1996-12-20 | Filotex Sa | Cable coaxial |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3639674A (en) * | 1970-06-25 | 1972-02-01 | Belden Corp | Shielded cable |
IT1067545B (it) * | 1976-08-30 | 1985-03-16 | Pirelli | Cavi a isolante estruso con schermo concentrico pzerfezionato |
FR2501407A1 (fr) * | 1981-03-06 | 1982-09-10 | Lignes Telegraph Telephon | Cable mixte associant un cable coaxial ou un guide d'ondes et au moins une fibre optique, et son utilisation |
US4920234A (en) * | 1986-08-04 | 1990-04-24 | E. I. Du Pont De Nemours And Company | Round cable having a corrugated septum |
JPH071643B2 (ja) * | 1987-07-21 | 1995-01-11 | 住友電気工業株式会社 | 同軸ケーブル |
CS272608B1 (en) * | 1988-09-22 | 1991-02-12 | Verbich Otto | Coaxial cable with increased shielding activity |
US5171938A (en) * | 1990-04-20 | 1992-12-15 | Yazaki Corporation | Electromagnetic wave fault prevention cable |
DE4310662C2 (de) * | 1993-04-01 | 1995-04-06 | Reinshagen Kabelwerk Gmbh | Hochfrequenzkabel |
-
1997
- 1997-07-24 DE DE19731792A patent/DE19731792A1/de not_active Withdrawn
-
1998
- 1998-02-23 DE DE59802211T patent/DE59802211D1/de not_active Expired - Lifetime
- 1998-02-23 EP EP98400440A patent/EP0893804B1/de not_active Expired - Lifetime
- 1998-06-24 US US09/104,264 patent/US6294728B1/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2353121A1 (fr) * | 1976-05-26 | 1977-12-23 | Filotex Sa | Cable electrique a structure coaxiale |
FR2735606A1 (fr) * | 1995-06-16 | 1996-12-20 | Filotex Sa | Cable coaxial |
Also Published As
Publication number | Publication date |
---|---|
EP0893804B1 (de) | 2001-11-28 |
EP0893804A3 (de) | 1999-02-24 |
DE59802211D1 (de) | 2002-01-10 |
DE19731792A1 (de) | 1999-01-28 |
US6294728B1 (en) | 2001-09-25 |
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