EP3935653A1 - Câble de puissance auto-éclairé avec récupérateur d'énergie déporté et procédé de fabrication associé - Google Patents
Câble de puissance auto-éclairé avec récupérateur d'énergie déporté et procédé de fabrication associéInfo
- Publication number
- EP3935653A1 EP3935653A1 EP20725840.1A EP20725840A EP3935653A1 EP 3935653 A1 EP3935653 A1 EP 3935653A1 EP 20725840 A EP20725840 A EP 20725840A EP 3935653 A1 EP3935653 A1 EP 3935653A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cable
- energy recovery
- conductive element
- cable according
- recovery system
- 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
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
-
- 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
- E21F17/04—Distributing means for power supply in mines
- E21F17/06—Distributing electric power; Cable networks; Conduits for cables
-
- 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
-
- 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
- F21V15/00—Protecting lighting devices from damage
-
- 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
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; 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
-
- 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
- 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—ELECTRIC POWER NETWORKS; 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 self-illuminated power cable with a remote energy recovery, 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 a central stuffing region containing at least one conductive element, remarkable in that it further comprises at least one tape disposed in the central stuffing region, at the in the vicinity of the at least one conductor element, the cable 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 made visible at all times because 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 arranged around the at least one conductive element, the at least one tape and the energy recovery system.
- 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, the conductive element and the energy recovery system against external attacks, while not degrading visibility, due to the transparent nature of the sheath. protection.
- the transparent protective sheath is extruded onto the assembly formed by the at least one conductive element, the at least one tape and the energy recovery system.
- 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 energy recovery system extends helically around the at least one conductive element.
- This arrangement is advantageous because it allows good recovery of energy throughout the conductive element.
- the at least one conductive element is 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 briefly described above, remarkable in that it comprises a step of extruding the protective sheath on the assembly formed by the at least one conductive element, the at least one strip and the energy recovery system.
- FIG. 1 is a schematic representation of a cross section of a cable according to the present invention, in a particular embodiment.
- FIG. 2 is a schematic representation of a portion of a ribbon and a windless energy recovery system included in the cable of Figure 1.
- 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 power cable according to the present invention, seen in cross section.
- the cable has a central region 13 filled with a stuffing material.
- the stuffing material is electrically insulating and is for example a plastic material. It is surrounded by one or more layer (s) of insulating material.
- the cable further comprises at least one conductive element contained in the central region 13 of stuffing.
- the cable is three-phase and the central stuffing region 13 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 and 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 arranged in the central stuffing region 13, between the conductive elements 10, 12 and 14, therefore in the vicinity of at least one of the conductive elements 10 , 12 and 14.
- the cable comprises a strip 16 disposed in the vicinity of the conductive element 10, which is a phase of the cable.
- 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 in the vicinity of which it is arranged.
- the energy from the conductive element 10 is collected by a system 1 1 energy recovery without coil of conductive wire, included in the cable.
- the energy recovery system 11 extends for example helically around the conductive element 10.
- the energy recovery system 11 may for example be of the type described below with reference to Figure 2.
- this system 1 1 energy recovery comprises two twists 20 ferromagnetic 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 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 no way limiting, any type of ferromagnetic material that can be used.
- FeNi50 or FeNi80 these examples not being in no way limiting, any type of ferromagnetic material that can be used.
- 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 tension 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, whatever 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 travel 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. It is advantageous to manufacture twists 20 composed of the greatest possible number of strands with the fewest strands possible. 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 self-illuminated power cable exhibits low overheating.
- the energy recovery system 1 1 supplies the ribbon 16 with current
- electromagnetism electric by electromagnetism, for example at regular intervals.
- the tape 16 includes a plurality of elements producing light from the electric current.
- the light emission is shown in Figure 1 by four arrows.
- These elements producing light can be diodes.
- the ribbon 16 could be equipped with electricity storage batteries.
- the cable can be fitted with one or more sensors in addition to the light emitting sensors provided on the tape 16, such as sensors measuring certain parameters reflecting the state of the cable, such as for example the temperature, the intensity of the current, the electrical voltage, the power, the mechanical tension or the location by GPS system (
- the energy recovery system 1 1 can supply these sensors with electric current.
- the energy recovery system 11 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 disposed around the conductive elements 10, 12 and 14, the tape 16 and the energy recovery system 11.
- the transparent protective sheath is for example made of plastic.
- the section of the self-illuminated cable may be small.
- a step is, after winding the system 1 1 energy recovery around the conductive element 10 of the cable, extruding the transparent protective sheath on the assembly formed by the conductive elements 10, 12 and 14, the tape (s) 16 and the system 1 1
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Computer Networks & Wireless Communication (AREA)
- Communication Cables (AREA)
- Insulated Conductors (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1902320A FR3093587B1 (fr) | 2019-03-07 | 2019-03-07 | Câble de puissance auto-éclairé avec récupérateur d’énergie déporté et procédé de fabrication associé |
| PCT/FR2020/050456 WO2020178535A1 (fr) | 2019-03-07 | 2020-03-05 | Câble de puissance auto-éclairé avec récupérateur d'énergie déporté et procédé de fabrication associé |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3935653A1 true EP3935653A1 (fr) | 2022-01-12 |
Family
ID=67441329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20725840.1A Pending EP3935653A1 (fr) | 2019-03-07 | 2020-03-05 | Câble de puissance auto-éclairé avec récupérateur d'énergie déporté et procédé de fabrication associé |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US12196403B2 (fr) |
| EP (1) | EP3935653A1 (fr) |
| AU (1) | AU2020232373A1 (fr) |
| BR (1) | BR112021017461A2 (fr) |
| CA (1) | CA3129534A1 (fr) |
| CL (1) | CL2021002340A1 (fr) |
| FR (1) | FR3093587B1 (fr) |
| MX (1) | MX2021010639A (fr) |
| WO (1) | WO2020178535A1 (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021042218A1 (fr) | 2019-09-03 | 2021-03-11 | Rodriguez Rios Borja | Système d'extraction d'énergie sur des câbles de puissance à partir du champ électrique |
| US20230290541A1 (en) * | 2020-08-05 | 2023-09-14 | Prysmian S.P.A. | Energy Harvesting System for Harvesting Electric Energy from a Power Cable and an Illuminating System for Illuminating Said Power Cable Using the Electric Energy Harvested by the Energy Harvesting System |
| FR3131656A1 (fr) * | 2022-01-05 | 2023-07-07 | Nexans | Câble de puissance auto-éclairé à récupérateurs d’énergie intégrés |
| FR3131655A1 (fr) * | 2022-01-05 | 2023-07-07 | Nexans | Bague de suivi du fonctionnement d’un câble de puissance et câble équipé d’une telle bague |
| CN117012451A (zh) * | 2023-07-10 | 2023-11-07 | 上海蓝昊电气江苏有限公司 | 一种含有由感应电流驱动led灯带的电缆 |
| CN118888199A (zh) * | 2024-07-19 | 2024-11-01 | 上海蓝昊电气股份有限公司 | 一种无源型发光电缆 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011023293A (ja) * | 2009-07-17 | 2011-02-03 | Fujikura Ltd | ケーブル |
Family Cites Families (4)
| 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 |
| AU2012387604B2 (en) | 2012-08-17 | 2017-12-14 | Servicios Condumex, S.A. De C.V. | Energy extraction system for illuminating cables, among other uses, which comprises a power cable and an energy extraction device; method for manufacturing and repairing said system |
| 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 |
-
2019
- 2019-03-07 FR FR1902320A patent/FR3093587B1/fr active Active
-
2020
- 2020-03-05 BR BR112021017461A patent/BR112021017461A2/pt not_active Application Discontinuation
- 2020-03-05 AU AU2020232373A patent/AU2020232373A1/en not_active Abandoned
- 2020-03-05 US US17/435,999 patent/US12196403B2/en active Active
- 2020-03-05 EP EP20725840.1A patent/EP3935653A1/fr active Pending
- 2020-03-05 CA CA3129534A patent/CA3129534A1/fr active Pending
- 2020-03-05 MX MX2021010639A patent/MX2021010639A/es unknown
- 2020-03-05 WO PCT/FR2020/050456 patent/WO2020178535A1/fr not_active Ceased
-
2021
- 2021-09-07 CL CL2021002340A patent/CL2021002340A1/es unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011023293A (ja) * | 2009-07-17 | 2011-02-03 | Fujikura Ltd | ケーブル |
Also Published As
| Publication number | Publication date |
|---|---|
| MX2021010639A (es) | 2021-12-10 |
| BR112021017461A2 (pt) | 2021-11-16 |
| FR3093587A1 (fr) | 2020-09-11 |
| FR3093587B1 (fr) | 2021-02-19 |
| US20220146087A1 (en) | 2022-05-12 |
| AU2020232373A1 (en) | 2021-09-30 |
| US12196403B2 (en) | 2025-01-14 |
| WO2020178535A1 (fr) | 2020-09-10 |
| CA3129534A1 (fr) | 2020-09-10 |
| CL2021002340A1 (es) | 2022-05-27 |
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