EP3935652A1 - Selbstleuchtendes stromkabel mit niedriger stromstärke, das seine flexibilität aufrechterhält, und verfahren zur herstellung davon - Google Patents

Selbstleuchtendes stromkabel mit niedriger stromstärke, das seine flexibilität aufrechterhält, und verfahren zur herstellung davon

Info

Publication number
EP3935652A1
EP3935652A1 EP20725839.3A EP20725839A EP3935652A1 EP 3935652 A1 EP3935652 A1 EP 3935652A1 EP 20725839 A EP20725839 A EP 20725839A EP 3935652 A1 EP3935652 A1 EP 3935652A1
Authority
EP
European Patent Office
Prior art keywords
cable
conductive element
ribbon
cable according
strip
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.)
Pending
Application number
EP20725839.3A
Other languages
English (en)
French (fr)
Inventor
Nicolas Poulin
Loïc VINET
Cédric LUMPP
Thierry Save
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.)
Nexans SA
Socomec SA
Original Assignee
Nexans SA
Socomec SA
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 Nexans SA, Socomec SA filed Critical Nexans SA
Publication of EP3935652A1 publication Critical patent/EP3935652A1/de
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • 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
    • H01B7/36—Insulated conductors or cables characterised by their form with distinguishing or length marks
    • H01B7/361—Insulated conductors or cables characterised by their form with distinguishing or length marks being the colour of the insulation or conductor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/18—Special adaptations of signalling or alarm devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/22—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape
    • F21S4/26—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape of rope form, e.g. LED lighting ropes, or of tubular form
    • 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
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/1005—Outdoor lighting of working places, building sites or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/101—Outdoor lighting of tunnels or the like, e.g. under bridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • 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
    • H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
    • H01B7/041—Flexible cables, conductors, or cords, e.g. trailing cables attached to mobile objects, e.g. portable tools, elevators, mining equipment, hoisting cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/06—Cores, Yokes, or armatures made from wires
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/001—Energy harvesting or scavenging
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling

Definitions

  • the present invention relates to a low-current self-illuminating power cable and retaining its flexibility, as well as to an associated manufacturing process.
  • the invention belongs to the field of electric power cables
  • Document WO 2014/026300 A8 describes an energy recovery system based on the principle of self-induction, which takes energy from a power cable in which electric current flows and which supplies a ribbon of light-emitting diodes for marking out a three-phase conductor.
  • the energy recuperator consists of a ferromagnetic cable on which is wound a copper coil. The voltage is recovered at the ends of this winding.
  • the copper coil generally has a relatively large size which is incompatible with installations with reduced space.
  • the flexibility of the assembly may be insufficient for winding around small diameter conductors.
  • this arrangement does not allow easy integration into an installation and even less into an electric cable.
  • the object of the present invention is to remedy the aforementioned drawbacks of the prior art.
  • the present invention provides a power cable comprising at least one conductive element, remarkable in that it further comprises at least one strip arranged over at least part of the length of the at least one conductive element, the tape being equipped with a windless energy recovery system which supplies the tape with electric current from the energy available in the at least one conductor, the tape comprising a plurality of elements producing light from the aforementioned electric current.
  • the cable according to the invention is thus made permanently visible due to the fact that it is self-supplied with electric current and that it therefore produces, through its elements which produce light from this current, a light bright enough to be seen despite the dust and / or dirt on the cable.
  • the cable is ignited as soon as a low current is present in the power conductor.
  • the cable further comprises a transparent protective sheath disposed around the at least one conductive element and the at least one ribbon.
  • the term "transparent” is understood to mean an element or a material allowing the luminous flux to pass more or less and through which the objects are clearly visible. More specifically, it is an element or material through which an image is observed without significant loss of contrast: the interposition of the transparent element or transparent material between an image and an observer thereof does not reduce
  • the transparent protective sheath makes it possible to preserve both the tape and the conductive element against external attack, while not degrading visibility, due to the transparent nature of the protective sheath.
  • the transparent protective sheath is extruded onto the assembly formed by the at least one conductive element and the at least one strip.
  • the transparent protective sheath is for example made of plastic.
  • the plurality of light-emitting elements comprises at least one light-emitting diode or LED (in English LED for "light-emitting diode").
  • the at least one ribbon can in turn supply electric current to at least one sensor of at least one parameter relating to the condition of the cable.
  • the at least one ribbon extends
  • This arrangement is advantageous because it allows the light emission to be distributed evenly all around the conductive element.
  • the cable comprises a ribbon arranged over the entire length of a conductive element of a phase of the cable.
  • the cable according to the present invention is for example a mining cable.
  • the present invention also provides a method of manufacturing a power cable such as
  • FIG. 1 is a schematic representation of a cable according to the present invention, in a particular embodiment.
  • FIG. 2 is an enlarged schematic representation of a portion of a ribbon included in the cable of Figure 1, showing the windless energy recovery system fitted to the ribbon.
  • the cable according to the present invention is an electric cable of
  • power intended for example for energy transport and / or data transmission It is for example a mining cable.
  • Figure 1 shows a particular embodiment of a cable according to the present invention.
  • the cable comprises at least one conductive element.
  • the cable is three-phase and therefore comprises three conductive elements 10, 12 and 14.
  • the conductive element 10 is for example a phase of the cable
  • the conductive element 12. is for example a neutral element
  • the conductive element 14 is for example a ground or earth element.
  • the cable shown in the drawing comprises conductive elements 10, 12 and 14 having a cross section of circular shape.
  • this form is given by way of non-limiting example.
  • Other shapes are possible, such as a substantially flat cross section.
  • the cable further comprises at least one tape 16 disposed over at least part of the length of at least one of the conductive elements 10, 12 and 14.
  • the cable comprises a strip 16 disposed over the entire length of the conductive element 10, which is a phase of the cable.
  • the tape 16 can be wound around the conductive element 10 and can for example extend helically around the latter, as in the particular embodiment illustrated.
  • the width and thickness of the tape 16 depend on the size of the cable and the application considered. They are chosen to allow the cable to maintain acceptable flexibility and size in this application.
  • the tape 16 is supplied with electric current from the power flowing in the conductive element 10 around which it is arranged.
  • conductor 10 is collected by an energy recovery system without winding of conductive wire, placed along the tape 16.
  • This energy recovery system can for example be of the type described below, where it comprises, on or near each of the longitudinal edges of the strip 16, a ferromagnetic twist 20 composed of strands of wires of ferromagnetic material of small diameter, typically from a few hundredths of a millimeter to a few millimeters, for example from 0.1 mm to 0.4 mm,
  • the ferromagnetic material is for example iron or an alloy of iron and nickel, such as for example FeNi50 or FeNi80, these examples not being in any way limiting, any type of ferromagnetic material being able to be used.
  • the ferromagnetic material used has a permeability
  • the twists 20 act as a ferromagnetic core positioned around the conductive element 10.
  • the current flowing in the conductive element 10 induces a magnetic flux in all of the strands which constitute each twist 20.
  • each strand embraces a certain fraction of the total section and acts as a winding in which a voltage is induced.
  • the strands therefore form the equivalent of a set of coils placed in parallel and a voltage is present between the two ends of each twist 20.
  • the self-illuminating cable keeps good flexibility, due to the small diameter of the wires of ferromagnetic material forming the strands which constitute each twist 20.
  • the number of wires (or strands) is adjusted to obtain the material section
  • These strands are stranded together, either in a single strand for the weak sections of twist 20, or in several intermediate strands.
  • the strands and the intermediate strands in the same twist 20 are advantageously “twisted” in the same direction (clockwise or counterclockwise) so that the induced tensions do not compensate each other.
  • the unit strands can be isolated from each other. They also may not be isolated from each other. In this second case, they are in permanent contact with each other.
  • the voltage gradient is advantageously zero over the entire cross section of a twist 20, regardless of the position on the twist 20, in order to avoid the creation of short circuits. There is no potential difference between the strands; no current can flow from one strand to the other. To this end, all the unitary strands follow the same “path” to embrace the same equivalent section all along the twist 20.
  • the stranding parameters of the different intermediate strands such as the pitch and the number of strands, are chosen so to satisfy this condition.
  • Combinations of 2, 3 or 4 strands can be made without a central strand, to ensure that the strands are all twisted identically.
  • the stranding of the twist 20 can then be carried out in several stages: for example, first a stranding of 2 or 3 strands, then a stranding of 2 or 3 strands of 2 or 3 strands, then a stranding of 2 or 3 strands of 2 or 3 strands of 2 or 3 strands, and so on until obtaining the desired number of strands and the desired ferromagnetic section.
  • a parameter which influences the induced voltage level is the stranding pitch.
  • the pitch of each intermediate strand should be taken into account. Reducing the pitch increases the number of turns per unit length and therefore the number of equivalent winding turns. This is advantageous for increasing the level of tension, but the step length will however be chosen so as to retain good flexibility and reduce deformations.
  • the direction of the winding on the conductive element 10 plays a role on the phase of the output voltage. Indeed, if the direction of stranding of twist 20 is the same as the direction of winding on conductive element 10, the voltage will be in phase with the current. On the other hand, if the direction of stranding is reversed with respect to the direction of winding on the conductive element 10, the voltage will be out of phase with the current. In addition, for a given current value, the voltages induced at the ends of a twist 20 are different depending on whether the stranding direction is the same or reversed with respect to the winding direction on the conductive element 10.
  • the induced voltage available at the ends of a twist 20 is proportional to the length of the twist 20. To obtain a sufficient voltage, for example 3 V minimum, several meters of twist may be necessary. The distance between the connections to recover this voltage can therefore also be several meters. So that the two connection terminals are side by side, two twists 20 stranded in the opposite direction to each other are
  • a terminal crimped directly on each twist 20 can clamp the strands against each other and thus ensure the electrical contacts and the mechanical strength of the strands.
  • the energy recovery system supplies the ribbon 16 with electric current by electromagnetism, for example at regular intervals.
  • the tape 16 comprises a plurality of elements 18 producing light from the electric current.
  • the elements 18 can be light emitting diodes.
  • the ribbon 16 could be equipped with electricity storage batteries.
  • the ribbon 16 can be fitted with one or more sensors in addition to the light emitting sensors, such as sensors measuring certain parameters reflecting the condition of the cable, such as for example the temperature, the intensity of the current, electrical voltage, power, mechanical voltage or even positioning by GPS system (satellite positioning system, in English “Global Positioning System”).
  • GPS system satellite positioning system, in English “Global Positioning System”
  • the tape 16 can supply these sensors with electric current.
  • the ribbon 16 can also supply any other element with electric current, such as one or more transmission systems, for example of the WiFi type.
  • a transparent protective sheath (not shown) can be arranged around the conductive elements 10, 12 and 14 and the tape 16.
  • the transparent protective sheath is for example made of plastic.
  • the section of the self-illuminated cable may be small.
  • a step consists, after winding, around the conductive element 10 of the cable, of the assembly composed of the energy recovery system and of the tape 16 (or else, if several tapes are provided respectively for several conductive elements, winding of each strip and of each energy recovery system around the corresponding conductive element), to extrude the transparent protective sheath on the assembly formed by the conductive elements 10, 12 and 14 and the tape 16 equipped with the energy recovery system.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Insulated Conductors (AREA)
  • Communication Cables (AREA)
  • Ropes Or Cables (AREA)
EP20725839.3A 2019-03-07 2020-03-05 Selbstleuchtendes stromkabel mit niedriger stromstärke, das seine flexibilität aufrechterhält, und verfahren zur herstellung davon Pending EP3935652A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1902319A FR3093586B1 (fr) 2019-03-07 2019-03-07 Câble de puissance auto-éclairé à bas courant et gardant sa souplesse et procédé de fabrication associé
PCT/FR2020/050455 WO2020178534A1 (fr) 2019-03-07 2020-03-05 Câble de puissance auto-éclairé à bas courant et gardant sa souplesse et procédé de fabrication associé

Publications (1)

Publication Number Publication Date
EP3935652A1 true EP3935652A1 (de) 2022-01-12

Family

ID=67441328

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20725839.3A Pending EP3935652A1 (de) 2019-03-07 2020-03-05 Selbstleuchtendes stromkabel mit niedriger stromstärke, das seine flexibilität aufrechterhält, und verfahren zur herstellung davon

Country Status (9)

Country Link
US (1) US12000579B2 (de)
EP (1) EP3935652A1 (de)
AU (1) AU2020231845A1 (de)
BR (1) BR112021017523A2 (de)
CA (1) CA3129528A1 (de)
CL (1) CL2021002338A1 (de)
FR (1) FR3093586B1 (de)
MX (1) MX2021010640A (de)
WO (1) WO2020178534A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4113543A1 (de) * 2021-06-28 2023-01-04 Lapp Engineering AG Kabel
FR3131656A1 (fr) * 2022-01-05 2023-07-07 Nexans Câble de puissance auto-éclairé à récupérateurs d’énergie intégrés

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2499570B (en) * 2012-01-31 2014-05-28 Jaguar Land Rover Ltd Power supply apparatus and method
MX347223B (es) * 2012-08-17 2017-04-20 López Gómez Mariano Sistema de extracción de energía para iluminar cables entre otros usos, que comprende un cable de poder y un dispositivo de extracción de energía; método de fabricación y reparación del mismo.
DE102014010414A1 (de) * 2014-07-14 2016-01-14 Siemens Aktiengesellschaft Ladesystem zur elektrischen Verbindung einer Ladesäule mit einem Elektroauto und Verfahren zu dessen Betrieb
CN105575530B (zh) * 2015-08-27 2017-12-12 浙江亘古电缆股份有限公司 闪光电缆

Also Published As

Publication number Publication date
FR3093586B1 (fr) 2021-02-19
AU2020231845A1 (en) 2021-09-30
CA3129528A1 (fr) 2020-09-10
MX2021010640A (es) 2021-12-10
CL2021002338A1 (es) 2022-05-20
BR112021017523A2 (pt) 2021-11-16
WO2020178534A1 (fr) 2020-09-10
FR3093586A1 (fr) 2020-09-11
US20220154923A1 (en) 2022-05-19
US12000579B2 (en) 2024-06-04

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