EP1688968A1 - Spiralförmiges elektrisches Kabel - Google Patents
Spiralförmiges elektrisches Kabel Download PDFInfo
- Publication number
- EP1688968A1 EP1688968A1 EP05300095A EP05300095A EP1688968A1 EP 1688968 A1 EP1688968 A1 EP 1688968A1 EP 05300095 A EP05300095 A EP 05300095A EP 05300095 A EP05300095 A EP 05300095A EP 1688968 A1 EP1688968 A1 EP 1688968A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- groups
- group
- helix
- winding
- pitch
- 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- Withdrawn
Links
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/02—Stranding-up
- H01B13/04—Mutually positioning pairs or quads to reduce cross-talk
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/06—Extensible conductors or cables, e.g. self-coiling cords
-
- 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
- H01B11/02—Cables with twisted pairs or quads
-
- 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
- H01B11/02—Cables with twisted pairs or quads
- H01B11/04—Cables with twisted pairs or quads with pairs or quads mutually positioned to reduce cross-talk
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2301/00—Controls
- D07B2301/25—System input signals, e.g. set points
- D07B2301/251—Twist
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2301/00—Controls
- D07B2301/35—System output signals
- D07B2301/3591—Linear speed
Definitions
- the present invention relates to the field of helical electric cables.
- An electrical cable comprises one or more groups of twisted wires.
- a group is conventionally made of two twisted wires - in this case, we speak of pair - but can also include more than two wires twisted between them.
- a helical electrical cable comprises several groups wound together to form a helix.
- Crosstalk refers to the electromagnetic interference between groups belonging to the same electric cable.
- the crosstalk phenomenon frequently poses a problem with data transmission.
- US Patent 6,318,062 discloses a method for varying the twist pitch within a pair. This method also makes it possible to prevent conductive wires from being roughly parallel to one another along the cable by preventing the interweaving of conducting wires of a given group into conducting wires of the other groups.
- the present invention relates to a helical electrical cable comprising at least two groups wound together so as to form a helix of groups, each group comprising at least two twisted wires.
- the pitch of the group helix varies along the helical electric cable between two limit values of the same sign.
- the main mechanism of coupling between the two pairs is the mutual inductance, which is a periodic function of the pairing steps and the wiring pitch that varies along the cable.
- increased interference may occur between the signal conveyed by the transmitting pair and the crosstalk signal propagating in the opposite direction in the receiving pair; this phenomenon occurs at frequencies which are in arithmetic relation with the period of the periodic function mentioned above and the propagation velocity.
- Some peaks in the crosstalk curves measured as a function of frequency have their origin in this mechanism, and the more the cable structure is regular and repetitive over a given length of cable, the more their amplitude and their width increase. As a result, the amplitudes of these peaks can be reduced by scrambling the cable geometry and according to the present invention this objective is accomplished by means of variations in the wiring pitch according to a determined or random function.
- the helical electric cable according to the invention may comprise at least one additional group helix.
- the helical electric cable according to the invention may comprise a single group helix.
- Each group helix may comprise more than two groups.
- the helical electrical cable may comprise a group helix comprising about ten coiled groups.
- the group helix can strictly comprise two groups.
- the helical electric cable according to the invention may comprise several group helices, each group helix comprising a different number of groups, or the same number of groups.
- the groups of twisted wires may comprise more than two wires.
- each group of conductive yarns strictly comprises two conductive yarns: this will be referred to as a twisted pair.
- the conductive wires may be twisted together helically or alternately, so-called "SZ".
- Groups can include the same number of leads, or a different number from one group to another.
- the pitch of the group helix advantageously varies according to a periodic function, for example a sinusoidal function.
- the pitch of the helix may for example vary randomly.
- the present invention also relates to a method of manufacturing a helical electric cable according to the present invention.
- the method comprises a step of winding the two groups so as to form a helix of groups.
- the winding is carried out with a speed varying between two limit speeds of the same sign so that the pitch of the group helix varies along the cable between two limit values of the same sign.
- the speed varying between the two limit speeds may be an angular winding speed of the two groups around a central line, the central line being in translation with a substantially constant linear speed.
- the speed varying between the two limit speeds is a linear speed of a central line in translation, the two groups being wound around the central line with a substantially constant angular velocity.
- Such a method makes it possible to avoid varying the winding angular speed, which can be advantageous particularly when the inertia of a winding device is relatively high.
- the method according to the present invention can also be implemented without a physical central line, thus making it possible to manufacture a helical electric cable without a central line, whether the variable speed is an angular winding speed or a linear translational speed.
- the present invention is not limited by the manner in which the manufacturing process is carried out.
- the present invention is not limited by the nature of pitch variation means of the group helix.
- the manufacturing device advantageously comprises means for measuring the stiffness of the central line at the input of the winding means, the measuring means being connected to the control means.
- the stiffness measuring means allows better control of the pitch value of the group helix, but does not limit the present invention.
- the present invention is of course not limited by the nature of the winding means.
- the manufacturing device further comprises means for applying a binder at the outlet of the die, and two pulling tracks.
- means for applying a binder at the outlet of the die, and two pulling tracks are not limiting.
- Figure 1 shows an example of helical electrical cable according to an embodiment of the present invention.
- Fig. 2 shows an example of a manufacturing device according to the preferred embodiment of the present invention.
- the helical electric cable shown in FIG. 1 comprises four groups P1, P2, P3 and P4 wound together to form a helix of groups 1.
- Each group Pi, i varying between 1 and 4 comprises two twisted conductive wires FCi1 and FCi2: we will talk about pairs.
- the conductive wires FCi1 and FCi2 are twisted helically, and with a different pitch from one pair to another.
- the pitch of a first pair P1 is thus smaller than the pitch of a second pair P2.
- the helical electric cable may also comprise outer layers, not shown, which protect the propeller from groups 1.
- the pitch of the group 1 propeller varies along the helical electric cable between two limit values.
- the pitch of the group helix takes a first value L1, a second value L2 and then a third value L3.
- the conducting wires of the different pairs P1, P2, P3 and P4 are thus only rarely parallel to each other, and over relatively short lengths.
- FIG. 2 illustrates an example of a device for manufacturing such a cable.
- the manufacturing device 11 comprises winding means 6 of two groups (18a, 18b) around a central line 9.
- the central line 9 undergoes a translational movement between input tracks 2 and output tracks 3 .
- Each group (18a, 18b) comprises several twisted conductive wires, for example copper wires.
- the winding means 6 comprise coils (21 a, 21 b).
- Each coil (21a, 21b) can carry a reserve of one of the groups (18a, 18b).
- Unrepresented rotation means allow rotation of the coils (21a, 21b) around the center line 9. The two groups (18a, 18b) are thus wound to form a group helix 20.
- the winding means 6 also comprise a distribution plate 5 comprising two peripheral openings (23a, 23b) and a central opening 24. Each peripheral opening (23a, 23b) receives one of the groups (21a, 21b). The central opening 24 receives the central line 9.
- the winding means 6 may also comprise a die 4 at the outlet of the distribution plate 5.
- means for applying a binder 3 make it possible to apply a binder to fix the position of the wound groups.
- the winding of the groups (18a, 18b) around the central line 9 is performed with a substantially constant angular velocity, for example 50 revolutions per minute.
- the linear speed of the central line 9 varies over time, at least at the level of the winding means 6, so that the group helix 20 has a pitch that varies along the helical electric cable thus produced. .
- the linear speed of the central line 9 is substantially constant over the time upstream of the manufacturing device 11, and downstream of the manufacturing device 11, for example 0.1 meters per second.
- the linear speed of the central line 9 varies at the level of the winding means 6.
- the manufacturing device 11 comprises pitch variation means of the group propeller comprising two accumulators (2,8) respectively upstream and downstream of the winding means 6.
- Each accumulator (2,8) comprises a movable drum (16, 17) for retaining a variable length of the central line 9. The linear speed of the central line 9 varies. when the position of one or the other of the mobile drums (16, 17) varies.
- the manufacturing device 11 also comprises means 10 for controlling the position of each mobile drum (16, 17).
- the control means 10 are connected to the accumulators (2, 8).
- the position of each mobile drum (16, 17) is a function of the voltage amplitude of a corresponding control signal (S1, S2), the control signals (S1, S2) being generated by the control means 10.
- a first corresponding mobile drum 16 is halfway up a first accumulator 8.
- the first control signal S1 has a positive amplitude
- the first mobile drum 16 is in an upper half 25 of the first accumulator 8.
- the first control signal S1 has a negative amplitude
- the first mobile drum 16 is in a low half 26 of the first accumulator 8.
- the position of a second mobile drum 17 of a second accumulator 2 can follow the same behavior according to the amplitude of a second control signal S2.
- the first control signal S1 and the second control signal S2 can be generated in such a way that at all times their values are opposite.
- the positions of the first mobile drum 16 and the second mobile drum 17 relative to a midline at half height of each accumulator (2, 8) are thus opposed.
- linear speed of the central line 9 at the winding means 6 is thus substantially equal to the linear speed of the central line upstream of the manufacturing device 11 incremented by a variation term.
- the variation term is substantially proportional to a first derivative of the first control signal.
- the term variation can thus be positive, negative or zero over time.
- the control signals (S1, S2) must not change too rapidly.
- the linear speed of the central line 9 can for example vary between 0.075 m / s and 0.12 m / s approximately. With such limited linear velocities, for an angular velocity of about 50 revolutions per minute, the pitch of the helix of groups varies between 0.09 m and 0.14 m approximately. Such values are of course only indicative.
- the pitch of the group helix 20 can for example vary according to a sinusoidal function: the control signals (S1, S2) also vary according to a sinusoidal function.
- the manufacturing device 11 may also comprise means for measuring the stiffness 7 of the central line 9.
- the means for measuring the stiffness 7 are connected to the control means 10, thus making it possible to adjust the control signals so that the linear speed of the central line at the entrance of the winding means 6 is substantially equal to the linear speed of the central line at the exit of the winding means 6.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
- Communication Cables (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05300095A EP1688968A1 (de) | 2005-02-04 | 2005-02-04 | Spiralförmiges elektrisches Kabel |
US11/342,350 US7663058B2 (en) | 2005-02-04 | 2006-01-26 | Helically-wound electric cable |
KR1020060010887A KR101213771B1 (ko) | 2005-02-04 | 2006-02-03 | 나선형으로 감긴 전기 케이블 |
US12/012,734 US7497070B2 (en) | 2005-02-04 | 2008-02-05 | Helically-wound electric cable |
US12/288,849 US8069644B2 (en) | 2005-02-04 | 2008-10-23 | Helically-wound electric cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05300095A EP1688968A1 (de) | 2005-02-04 | 2005-02-04 | Spiralförmiges elektrisches Kabel |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1688968A1 true EP1688968A1 (de) | 2006-08-09 |
Family
ID=34942501
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05300095A Withdrawn EP1688968A1 (de) | 2005-02-04 | 2005-02-04 | Spiralförmiges elektrisches Kabel |
Country Status (3)
Country | Link |
---|---|
US (3) | US7663058B2 (de) |
EP (1) | EP1688968A1 (de) |
KR (1) | KR101213771B1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2131370A1 (de) * | 2008-06-02 | 2009-12-09 | Nexans | Spiralförmiges elektrisches Kabel |
WO2011020967A1 (fr) * | 2009-08-19 | 2011-02-24 | Nexans | Cable de communication de donnees |
US20160336095A1 (en) * | 2014-01-23 | 2016-11-17 | Rosenberger Hochfrequenztechnik Gmbh & Co. Kg | Cable arrangement |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW201101339A (en) * | 2009-06-30 | 2011-01-01 | Askey Computer Corp | Transmission wire |
CN102024526B (zh) * | 2010-10-15 | 2012-04-18 | 镇江市华银仪表电器有限公司 | 一种螺旋电缆的加工方法 |
CN109599209B (zh) * | 2018-12-21 | 2020-06-30 | 惠州市迈联电子有限公司 | 一种多重弹性电缆及其制造工艺 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6318062B1 (en) * | 1998-11-13 | 2001-11-20 | Watson Machinery International, Inc. | Random lay wire twisting machine |
EP1174886A2 (de) * | 2000-06-15 | 2002-01-23 | Kerpenwerk GmbH & Co | Datenkabel sowie Verfahren zum Herstellen eines Datenkabels |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US502262A (en) | 1893-07-25 | William r | ||
US1475139A (en) | 1920-03-30 | 1923-11-20 | George C Pearson | Telephone cable |
US2869316A (en) | 1957-03-12 | 1959-01-20 | Plastic Wire & Cable Corp | Twisted conductors and cables and method and apparatus for making the same |
US3017450A (en) | 1957-07-19 | 1962-01-16 | Western Electric Co | Cables |
BE630396A (de) | 1962-03-27 | |||
US3373550A (en) * | 1965-06-10 | 1968-03-19 | Western Electric Co | Methods of and apparatus for alternate-reverse twisting of indefinite lengths of strand material |
US3651243A (en) | 1968-08-30 | 1972-03-21 | Western Electric Co | High-frequency cables |
US3715877A (en) | 1969-10-27 | 1973-02-13 | Oki Electric Cable | Communication cable |
DE2232329C2 (de) * | 1972-06-28 | 1974-08-08 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Vorrichtung zum Verseilen von Verseilelementen für elektrische Kabel zu einer Verseileinheit mit abschnittsweise wechselnder Verdrillungsrichtung |
DE2933017C2 (de) * | 1979-08-16 | 1984-04-12 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg | Bandspeicherantrieb |
DE3006054C2 (de) * | 1980-02-18 | 1982-03-18 | Siemens AG, 1000 Berlin und 8000 München | Einrichtung für die SZ-Verseilung von Verseilerelementen |
DE3344731C2 (de) * | 1983-12-10 | 1985-12-12 | Stolberger Maschinenfabrik GmbH & Co KG, 5190 Stolberg | Verseilmaschine mit Zugspannungsregelung für das Verseilgut |
US5564268A (en) | 1994-04-08 | 1996-10-15 | Ceeco Machinery Manufacturing Ltd. | Apparatus and method for the manufacture of uniform impedance communication cables for high frequency use |
US5647195A (en) * | 1995-06-29 | 1997-07-15 | Lucent Technologies Inc. | Method for twisting a pair of moving strands |
US5739473A (en) * | 1995-07-31 | 1998-04-14 | Lucent Technologies Inc. | Fire resistant cable for use in local area network |
US5767441A (en) | 1996-01-04 | 1998-06-16 | General Cable Industries | Paired electrical cable having improved transmission properties and method for making same |
US6293081B1 (en) * | 1997-06-12 | 2001-09-25 | Siecor Operations, Llc | Fiber optic cable marking process and a sensor device use therewith |
DE19824798A1 (de) * | 1998-06-03 | 1999-12-09 | Indag Gmbh & Co Betriebs Kg | Vorrichtung und Verfahren zum Zuführen von Folien |
US6856850B2 (en) * | 1998-07-03 | 2005-02-15 | Kimberly Clark Worldwide, Inc. | Controlling web tension, and accumulating lengths of web, using a festoon |
US6211467B1 (en) | 1998-08-06 | 2001-04-03 | Prestolite Wire Corporation | Low loss data cable |
US6959533B2 (en) | 2002-01-10 | 2005-11-01 | International Business Machines Corporation | Apparatus and method for producing twisted pair cables with reduced propagation delay and crosstalk |
US7392647B2 (en) | 2003-10-23 | 2008-07-01 | Commscope, Inc. Of North Carolina | Methods and apparatus for forming cable media |
US6875928B1 (en) | 2003-10-23 | 2005-04-05 | Commscope Solutions Properties, Llc | Local area network cabling arrangement with randomized variation |
US7214884B2 (en) * | 2003-10-31 | 2007-05-08 | Adc Incorporated | Cable with offset filler |
US7345243B2 (en) | 2004-12-17 | 2008-03-18 | Panduit Corp. | Communication cable with variable lay length |
-
2005
- 2005-02-04 EP EP05300095A patent/EP1688968A1/de not_active Withdrawn
-
2006
- 2006-01-26 US US11/342,350 patent/US7663058B2/en not_active Expired - Fee Related
- 2006-02-03 KR KR1020060010887A patent/KR101213771B1/ko not_active IP Right Cessation
-
2008
- 2008-02-05 US US12/012,734 patent/US7497070B2/en not_active Expired - Fee Related
- 2008-10-23 US US12/288,849 patent/US8069644B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6318062B1 (en) * | 1998-11-13 | 2001-11-20 | Watson Machinery International, Inc. | Random lay wire twisting machine |
EP1174886A2 (de) * | 2000-06-15 | 2002-01-23 | Kerpenwerk GmbH & Co | Datenkabel sowie Verfahren zum Herstellen eines Datenkabels |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2131370A1 (de) * | 2008-06-02 | 2009-12-09 | Nexans | Spiralförmiges elektrisches Kabel |
WO2011020967A1 (fr) * | 2009-08-19 | 2011-02-24 | Nexans | Cable de communication de donnees |
FR2949274A1 (fr) * | 2009-08-19 | 2011-02-25 | Nexans | Cable de communication de donnees |
US20160336095A1 (en) * | 2014-01-23 | 2016-11-17 | Rosenberger Hochfrequenztechnik Gmbh & Co. Kg | Cable arrangement |
US10115499B2 (en) * | 2014-01-23 | 2018-10-30 | Rosenberger Hochfrequenztechnik Gmbh & Co. Kg | Cable arrangement |
Also Published As
Publication number | Publication date |
---|---|
US20080134655A1 (en) | 2008-06-12 |
US20060175076A1 (en) | 2006-08-10 |
KR101213771B1 (ko) | 2012-12-18 |
US7663058B2 (en) | 2010-02-16 |
US20090126969A1 (en) | 2009-05-21 |
US7497070B2 (en) | 2009-03-03 |
US8069644B2 (en) | 2011-12-06 |
KR20060089680A (ko) | 2006-08-09 |
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