EP3239987A1 - Ligne électrique et son utilisation - Google Patents

Ligne électrique et son utilisation Download PDF

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Publication number
EP3239987A1
EP3239987A1 EP17167591.1A EP17167591A EP3239987A1 EP 3239987 A1 EP3239987 A1 EP 3239987A1 EP 17167591 A EP17167591 A EP 17167591A EP 3239987 A1 EP3239987 A1 EP 3239987A1
Authority
EP
European Patent Office
Prior art keywords
line
inner layer
lead
cable jacket
electrical
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Withdrawn
Application number
EP17167591.1A
Other languages
German (de)
English (en)
Inventor
Michael Dreiner
Stefan NEUBERT
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.)
Leoni Kabel GmbH
Original Assignee
Leoni Kabel Holding 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 Leoni Kabel Holding GmbH filed Critical Leoni Kabel Holding GmbH
Publication of EP3239987A1 publication Critical patent/EP3239987A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/303—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups H01B3/38 or H01B3/302
    • H01B3/306—Polyimides or polyesterimides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/307—Other macromolecular compounds
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals
    • H01B3/427—Polyethers
    • 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
    • H01B7/02—Disposition of insulation
    • H01B7/0208—Cables with several layers of insulating material
    • 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

Definitions

  • the application relates to an electrical line and their use especially in high-stress areas, such as in an engine compartment.
  • a large-scale combustion engine position is understood in particular to mean a diesel engine system which has a power of usually several hundred kW or even several thousand kW.
  • Such engine systems are used for example as marine engines or in rail traffic.
  • the cables are typically wires, that is to say electrical conductors which are only provided with a wire insulation.
  • the conductors are designed in particular as a stranded conductor.
  • the lines In addition to the mechanical and thermal requirements, the lines must also have a high resistance to operating materials or other substances, such as oils and impregnating resins. In addition, they must have sufficient flexibility. In addition, a compact design with a small diameter and low weight is always desirable.
  • the present invention seeks to provide an electrical line, which is particularly suitable for use in such highly loaded environments, especially within an engine compartment of a large-scale internal combustion engine.
  • the object is achieved by an electrical line with the features of claim 1.
  • the line includes a line core and a surrounding, insulating cable jacket of a halogen-free and high temperature resistant plastic, wherein the continuous service temperature of the electrical line at above 180 ° C and in particular above 200 ° C.
  • the targeted use of such a plastic insulation jacket on the one hand the higher temperatures in modern engine systems are taken into account.
  • Previous typical conduits have shown only a lower continuous service temperature resistance.
  • environmental requirements such as e.g. taken into account the fire protection.
  • the line can be used permanently above this temperature without direct damage to the insulation jacket and / or the line is done, ie in particular. without the physical properties, such as, for example, tensile strength and elongation and / or the electrical properties, such as, for example, dielectric strength, deteriorating at a temperature over a given time, eg by more than 5% or more than 10%.
  • the physical properties such as, for example, tensile strength and elongation and / or the electrical properties, such as, for example, dielectric strength, deteriorating at a temperature over a given time, eg by more than 5% or more than 10%.
  • Under permanent here is an uninterrupted load of typically several 10 hours or even understood by several days, specifically this is the suitability for continuous operation or up to a service life of 3 years understood. In particular, this is understood as a long-term temperature resistance according to DIN VDE 0881 (1986).
  • Halogen-free is generally understood to mean that the material used for the cable sheath is halogen-free in particular according to IEC 60092-350 (2008) or VG 95218-2 (2013). In particular, therefore, the cable jacket on no plastics containing a halogen such as fluorine or chlorine.
  • the line as a whole is formed as a wire, in which therefore the line core is an electrical conductor which is surrounded by the cable jacket. Further concentrically arranged around the electrical conductor coats are therefore not provided.
  • the cable jacket itself is formed in multiple layers, wherein this has an inner layer of a wound polyimide tape and an outer layer of PEEK, wherein the outer layer is extruded onto the inner layer.
  • the different requirements for the intended field of application are met in a particularly preferred manner.
  • a "floating" mounting of the inner conductor is achieved, so that the conductor has at least a certain mobility relative to the inner layer.
  • This also preferably achieves or ensures mechanical decoupling of the two layers. This is of particular importance against the background of the high vibration stress in order to design the entire line as resistant as possible to vibrations.
  • such a vein is also particularly flame-retardant and self-extinguishing.
  • This double-walled jacket construction with the inner layer made of especially polyimide and the outer layer, especially made of PEEK, is in principle not limited to use as a core jacket. Rather, it is also possible to design the cable sheath of a so-called sheathed cable with such a structure of at least two layers. In such a sheathed cable several individual lines, such as individual wires, surrounded by a common cable sheath.
  • the line core is formed as an electrical conductor, so that the line is designed as a core with an internal conductor and a wire insulation as a cable jacket.
  • the conductor is expediently a stranded conductor consisting of several individual stranded wires.
  • copper wires which are provided in particular with a surface layer, for example tinned, silvered or nickel-plated.
  • a surface layer for example tinned, silvered or nickel-plated.
  • silver-plated individual wires are used, since these have proven particularly useful in practice.
  • the stranded conductor corresponds to the standard IEC 60228 class 5, for example.
  • the cross-sectional area of the conductor is typically in the range between 0.5 mm 2 to 2.5 mm 2 . In the case of a stranded conductor, this usually consists of 7 or 19 individual wires.
  • the inner layer is designed as a banding.
  • the desired floating storage is achieved.
  • the high flexibility is achieved by the banding.
  • the inner layer consists of polyimide.
  • Polyimide is characterized by a particularly high temperature resistance.
  • Polyimide is a non-thermoplastic material, which therefore can not be melted.
  • Polyimide decomposes at temperatures higher than 600 ° C.
  • polyimide is particularly suitable as a first, inner layer, to which a second, outer layer is extruded. The higher temperature load during the extrusion of the outer layer therefore does not lead to damage to the inner Location.
  • polyimide has a high dielectric strength, which can be ensured with a thin wall thickness, a high dielectric strength of the line.
  • Polyimide tapes are known in principle and are sold, for example, under the brand name KAPTON in different variants by Dupont. Such a band for polyimide banding is preferably used.
  • a second layer is expediently formed and in particular extruded onto this inner layer.
  • this forms an outer layer around which no further concentrically arranged layer is arranged.
  • the extrusion ensures a tight coating of the jacket, ensuring both electrical properties and media resistance. In addition, a very high abrasion resistance is guaranteed.
  • This outer jacket layer is in particular a PEEK jacket.
  • the conduit is either externally connected to a housing of the assembly via the connector or is in particular sealed, for example, inserted through a grommet into the interior of the housing and connected there electrically via the connector, e.g. over the cable lug.
  • such a line in particular wire or a composite of several such wires, arranged in a hose or pipe, especially in a corrugated hose or corrugated pipe.
  • the lines are or the line network is usually loose, so arranged relatively displaceable within the tube, thus have / has a distance from the inner wall surface of the hose.
  • a line is used in the engine compartment of a particular large-scale engine system, especially in the engine compartment of a marine engine or in the engine compartment of a rail vehicle, as defined above.
  • the line is guided inside the hose or pipe, in particular corrugated hose or corrugated pipe between the two components.
  • the line 2 embodied as a core has, as a line core, a conductor 4 designed in particular as a stranded conductor, which conductor is surrounded directly by a two-layered cable jacket 6 in the exemplary embodiment as a core jacket.
  • the conductor 4 in turn consists of a plurality of individual stranded wires 8, which are typically stranded together.
  • two layers of stranded wires 8 are arranged around the central wire, so that a total of nineteen stranded wires 8 are used.
  • the cable jacket 6 consists of an inner layer 10 and an outer layer 12.
  • the inner layer is in particular a banding.
  • a polyimide tape is used in particular.
  • This has a wall thickness W1 which is in the range of 0.15 mm to 0.25 mm and in particular 0.20 mm.
  • This inner layer 10 forms a primary insulation and already has a high dielectric strength. With this wall thickness, a dielectric strength up to an effective voltage of, for example, 900 V in accordance with DIN VDE 0881 is achieved.
  • the total wall thickness of the cable jacket 6 is preferably in the range between 0.3 mm and 0.35 mm.
  • the outer diameter of the line 2 and thus also the total wall thickness W is a total - viewed in the longitudinal direction - constant. Due to the variation of the wall thickness W2, therefore, the overlap of the banded inner layer 10 in the overlapping areas is compensated or compensated.
  • the line 2 is finally made of the components stranded conductor 4 - inner layer 10 - outer layer 12.
  • Such lines 2 are preferably laid in a hose 14 which is formed in particular as a corrugated hose as shown schematically in the Fig. 2 is shown.
  • this hose 14 in the exemplary embodiment has an approximately T-shaped configuration with a branch.
  • the hose 14 is a heat-resistant hose made of a suitable plastic material or possibly also of other materials.
  • the corrugated hose 14 leads, for example, left side to engine components.
  • the guided in the corrugated tube 14 line 2 is connected there with an electrical assembly not shown here within the engine compartment.
  • On the right side leads the corrugated hose 14 and thus the line 2, for example, to another unit, such as a control or supply electronics, with which the line 2 is electrically connected.
  • Also via the T-branch of the corrugated hose can lead to other units, such as control and supply components.
  • the line 2 is preferably connected in particular reversibly releasably connected to the respective units via here not shown connecting elements, in particular connectors or cable lugs.
  • corrugated hose typically several such conduits 2 are routed.
  • the corrugated hose is laid in particular within an engine compartment of a specially large-scale internal combustion engine.
  • the corrugated hose 14 and the lines 2 laid therein must therefore permanently withstand high temperatures of at least 180 ° C permanently. Due to the Wellrohraushold and the high engine vibrations, the lines 2 are also exposed to high mechanical stress.

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Insulated Conductors (AREA)
EP17167591.1A 2016-04-28 2017-04-21 Ligne électrique et son utilisation Withdrawn EP3239987A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016207323.0A DE102016207323A1 (de) 2016-04-28 2016-04-28 Elektrische Leitung

Publications (1)

Publication Number Publication Date
EP3239987A1 true EP3239987A1 (fr) 2017-11-01

Family

ID=58632234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17167591.1A Withdrawn EP3239987A1 (fr) 2016-04-28 2017-04-21 Ligne électrique et son utilisation

Country Status (2)

Country Link
EP (1) EP3239987A1 (fr)
DE (1) DE102016207323A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040034A1 (fr) * 1980-05-08 1981-11-18 BICC Limited Fils isolés et câbles électriques
DE102010002721A1 (de) * 2010-03-10 2011-11-17 Siemens Aktiengesellschaft Draht und Verfahren zur Herstellung eines Drahts
US20120080970A1 (en) * 2010-02-22 2012-04-05 General Electric Company High voltage and high temperature winding insulation for esp motor
CN204178742U (zh) * 2014-09-23 2015-02-25 东营广兴石油装备有限公司 潜油电机用耐高温聚醚醚酮聚酰亚胺薄膜复合绝缘铜圆线

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015130681A1 (fr) * 2014-02-25 2015-09-03 Essex Group, Inc. Fil de bobinage isolé

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040034A1 (fr) * 1980-05-08 1981-11-18 BICC Limited Fils isolés et câbles électriques
US20120080970A1 (en) * 2010-02-22 2012-04-05 General Electric Company High voltage and high temperature winding insulation for esp motor
DE102010002721A1 (de) * 2010-03-10 2011-11-17 Siemens Aktiengesellschaft Draht und Verfahren zur Herstellung eines Drahts
CN204178742U (zh) * 2014-09-23 2015-02-25 东营广兴石油装备有限公司 潜油电机用耐高温聚醚醚酮聚酰亚胺薄膜复合绝缘铜圆线

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 201527, Derwent World Patents Index; AN 2015-23715S, XP002773038 *

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DE102016207323A1 (de) 2017-11-02

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