WO2012076096A1 - Système de câble électrique - Google Patents

Système de câble électrique Download PDF

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Publication number
WO2012076096A1
WO2012076096A1 PCT/EP2011/005665 EP2011005665W WO2012076096A1 WO 2012076096 A1 WO2012076096 A1 WO 2012076096A1 EP 2011005665 W EP2011005665 W EP 2011005665W WO 2012076096 A1 WO2012076096 A1 WO 2012076096A1
Authority
WO
WIPO (PCT)
Prior art keywords
protective layer
cable device
conductor core
insulating layer
electric cable
Prior art date
Application number
PCT/EP2011/005665
Other languages
German (de)
English (en)
Inventor
Heinz-Jürgen Schwarz
Original Assignee
Daimler Ag
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 Daimler Ag filed Critical Daimler Ag
Publication of WO2012076096A1 publication Critical patent/WO2012076096A1/fr

Links

Classifications

    • 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
    • H01B7/189—Radial force absorbing layers providing a cushioning effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/16—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer formed of particles, e.g. chips, powder or granules
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/02—Synthetic macromolecular particles
    • B32B2264/0214—Particles made of materials belonging to B32B27/00
    • B32B2264/0264—Polyamide particles
    • B32B2264/0271—Aromatic polyamide particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/101—Glass
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients

Definitions

  • the invention relates to an electric cable device according to the preamble of claim 1.
  • From DE 103 29 857 B3 is already an electrical cable device, in particular for use in a high-voltage network, with at least one electrically conductive conductor core, with an insulating layer, the at least one conductor core coated for insulation, known.
  • the invention is in particular the object of providing a cost-effective and easy-to-install electric cable device, which, especially in a crash, provides high security. It is achieved according to the invention by the features of claim 1. Further embodiments emerge from the subclaims.
  • the invention is based on an electric cable device, in particular for use in a high-voltage network, with at least one electrically conductive conductor core, with an insulation layer which encloses the at least one conductor core for insulation, and with an EMC shield arranged outside the insulation layer.
  • the electrical cable device has at least one protective layer applied between the insulating layer and the EMC shield, which is provided for the mechanical damping of externally acting forces.
  • This allows a high level of security of the electric cable device, in particular without additional effort during assembly, can be achieved. As a result, high security can be ensured, in particular in the event of a crash.
  • a "high-voltage network” should be understood to mean, in particular, a high-voltage on-board electrical system, preferably a hybrid or electric motor vehicle, against which voltages greater than 60 volts are applied. Cable device can be understood, which leads the electric current.
  • an "insulating layer” is to be understood as meaning, in particular, a layer which is not electrically conductive and thus prevents a flashover of an electrical current across the layer encloses it over the entire circumference.
  • An “EMC shielding” is to be understood as meaning, in particular, a layer of electrically conductive material, the layer being preferably formed from a metal foil and / or metal wires, which preferably completely enclose the conductor core. thereby intended to minimize interference on or from the core by electrical and / or magnetic fields and preferably completely eliminate.
  • exital forces are to be understood as meaning, in particular, mechanical forces which act on the electrical cable device from the outside, whereby they may exceed the forces which occur in a normal operating state and thus lead to damage of the electric cable device 0.1 mm thick, in an advantageous embodiment 0.5 mm thick and in a particularly advantageous embodiment at least 1 mm thick.
  • Provisioned is to be understood in particular to be specially designed and / or equipped.
  • the protective layer is firmly connected to the insulating layer.
  • a particularly advantageous protective layer can be provided.
  • the term "firmly connected” is understood to mean in particular that the protective layer and the insulating layer are mechanically firmly connected to one another, preferably not separable from each other in a destructive manner.
  • the protective layer has a foamed plastic sheath.
  • the protective layer can be constructed particularly simply and cheaply.
  • a “foamed plastic” should be understood to mean, in particular, a plastic having a void-rich, three-dimensional cell structure, Preferably, the cavities are formed by a multiplicity of cell walls arranged in different spatial directions, which are networked with one another and support one another, such as PU, for example. PVC, PE, PUR, PA and / or PF.
  • the protective layer is intended to be applied to the conductor core by an extrusion process. As a result, the protective layer formed as a plastic sheath can be produced particularly simply and cost-effectively in one production step.
  • the protective layer has at least one band which is wound around the conductor core.
  • the protective layer can be made particularly simple.
  • a "strip" is to be understood in particular a strand of material having a width which is substantially greater than its height.
  • the protective layer has individual filaments woven into one another around the conductor core.
  • individual filaments are to be understood as meaning, in particular, individual fibers which have a length which is substantially greater than a width and a height or a diameter of the fibers be nested together and form a coherent unit.
  • the individual filaments are intertwined in a constant pattern and preferably have a regular pattern.
  • the individual filaments are closely intertwined with each other and thereby preferably form a closed layer.
  • the individual filaments can be braided into one another along or across the conductor core.
  • the term "braided along the conductor core” is understood to mean that the individual filaments are braided at an angle between 0 and 45 degrees to a longitudinal extension of the conductor core around the conductor core braided at an angle between 45 and 90 degrees to the longitudinal extent of the conductor core around the conductor core.
  • the individual filaments may include materials such as PET, aramid, glass and / or other materials that appear appropriate to those skilled in the art.
  • the electrical cable device has at least one further conductor core, which is intended to be merged with the first conductor core to form a multi-core conductor core, and which has a separate protective layer.
  • an electric cable device with a plurality of conductor cores can be provided, in which a protection for the different conductor cores and according to different guidelines can be adapted.
  • the at least two conductor cores have a common protective layer. As a result, a protection for a plurality of conductor cores can advantageously be achieved by a protective layer.
  • a method for producing an electrical cable device in particular for use in a high-voltage network, with at least one electrically conductive core, with an insulating layer which encases the at least one conductor core for insulation, with an arranged outside the insulating layer EMC shield, and at least one Protective layer, which is provided for the mechanical damping of external forces, in particular for producing an electrical cable device according to one of the preceding claims, wherein the at least one protective layer between the insulating layer and the EMC shield is attached proposed.
  • the electric cable device can be produced particularly easily.
  • the protective layer is mounted after production between the insulating layer and the protective layer, wherein during a production, the insulating layer, the protective layer and the EMC shield in a temporal Distance to be mounted around the ladder core.
  • FIG. 1 shows a cross section of an electrical cable device according to the invention in a first embodiment
  • Fig. 3 shows a cross section of the electric cable device according to the invention in a third embodiment
  • FIG. 4 shows a cross section of the electric cable device according to the invention in a fourth exemplary embodiment.
  • FIG. 1 shows a schematic representation of an electrical cable device according to the invention.
  • the electric cable device is intended for use in a high voltage network.
  • the high-voltage network can be designed, for example, as part of a drive train of an electric or hybrid motor vehicle.
  • the high-voltage network is intended to connect high voltage components of an electric or hybrid motor vehicle, such as an electric motor or air conditioning with each other. In the high-voltage network, voltages of more than 60 volts, up to more than 600 volts, are present in one operation.
  • the electric cable device comprises a conductor core 10a.
  • the conductor core 10a has a substantially round cross-sectional area.
  • the conductor core 10a is made of a conductive metal and designed to conduct a current.
  • the conductor core 10a is made of a copper, a copper alloy, an aluminum, or another material that appears appropriate to a person skilled in the art.
  • the electric cable device comprises an insulation layer 11a.
  • the insulating layer 11a completely encloses the conductor core 10a and thus electrically shields it from an environment.
  • the insulating layer 11a is made of a plastic. In this case, the insulating layer 11a has a thickness of 1 mm.
  • the insulating layer 1 1a directly surrounds the conductor core 10a and is intended to prevent a flashover to other parts of the electric cable device and the high-voltage network.
  • the electrical cable device has an EMC shield 12a.
  • the EMC shield 12a is formed as a thin aluminum layer wound around the conductor core 10a.
  • the EMC shield 12a is composed of metal wires or other materials that appear reasonable to those skilled in the art, which are wound around the conductor core 10a.
  • the electric cable device has a protective jacket 17a.
  • the protective jacket 17a is mounted around the EMC shield 12a.
  • the protective sheath 17a is formed as a plastic sheath which completely surrounds the EMC shield 12a.
  • the protective jacket 17a is attached to the EMC shield 12a by an extrusion method and closes the electric cable device to the outside.
  • the protective jacket 17a is intended to protect the electric cable device from external influences, such as moisture and heat.
  • the electric cable device has a protective layer 3a.
  • the protective layer 13a is between the insulation layer 11a and the EMC shield 12a attached.
  • the protective layer 13a is loosely mounted on the insulating layer 11a.
  • the protective layer 13a has no mechanical connection to the insulating layer 1a.
  • the protective layer 13a is arranged at least partially movable on the insulating layer 1a. The protective layer 13a can thereby perform a relative movement to the insulating layer 11a.
  • the EMC shield 12a is also loosely arranged on the protective layer 13a.
  • the EMC shield 12a has no mechanical connection to the protective layer 13a.
  • the protective layer 13a has a foamed plastic covering.
  • the plastic sheath of the protective layer 13a completely encloses the insulating layer 11a and the conductor core 10a therein at a periphery of the insulating layer 11a.
  • the plastic wrap is applied to the insulating layer 11a by an extrusion process during cable production.
  • a raw material of the plastic casing is first in an at least partially liquid state during the extrusion process.
  • the raw material of the plastic wrap hardens by drying.
  • the plastic sheath completely encloses the insulation layer 11a without leaving a joint.
  • the plastic sheath of the protective layer 13a has a thickness of 1 mm. In principle, it is also conceivable that the plastic covering of the protective layer 13a has a size that is greater than 1 mm.
  • FIGS. 2 to 4 show three further exemplary embodiments of the invention.
  • the following descriptions are essentially limited to the differences between the exemplary embodiments, reference being made to the description of the other exemplary embodiments, in particular FIG. 1, with regard to components, features and functions remaining the same.
  • the letter a in the reference numerals of the embodiment in Figure 1 by the letters b, c and d in the reference numerals of the embodiments of Figures 2 to 4 is replaced.
  • FIG 2 shows another embodiment of the invention Elektrocluvor- direction.
  • the electric cable device is intended for use in a high voltage network.
  • the electric cable device comprises a first conductor core 10b and a further second conductor core 15b, which is intended to be merged with the first conductor core 10b to form a multi-core conductor core.
  • Each of the conductor cores 10b, 15b respectively has an insulating layer 11b, 18b, each of which is provided for this purpose. it is seen to insulate the conductor core 10b, 15b from an environment.
  • the electrical cable device has an EMC shield 12b.
  • the EMC shield 12b is formed as a thin aluminum layer wound around the two conductor cores 10b, 15b.
  • the electric cable device has a protective jacket 17b.
  • the protective jacket 17b is mounted around the EMC shield 12b.
  • the electrical cable device has a protective layer 13b for the mechanical damping of external forces acting on the first conductor core 10b.
  • the protective layer 13b is disposed between the insulating layer 11b and the EMC shield 12b.
  • the protective layer 13b has a foamed plastic sheath. The plastic sheath completely encloses the insulating layer 11b and the first conductor core 10b therein at a periphery of the insulating layer 1b.
  • the second conductor core 15b also has a protective layer 16b.
  • the protective layer 16b of the second conductor core 15b is formed as a separate protective layer.
  • the protective layer 15b has a band 14b.
  • the band 14b is made of a foamed plastic.
  • the band 14b is wound longitudinally around the conductor core 15b. In this case, two lateral ends of the band 14b meet on one side of the conductor core 15b, which is opposite to a center of the band 14b, and are connected to one another in order to achieve complete encapsulation of the insulating layer 18b of the conductor core 15b.
  • the two lateral ends of the band 14b are connected to one another in a material-locking manner, for example by a melting process.
  • the two lateral ends of the band 14b are connected to one another by means of a positive connection, for example by folding the two ends together.
  • a filling medium 21b is arranged, which supports the conductor cores 10b, 15b and holds in a desired position.
  • the filling medium can in principle also be formed integrally with the protective layers 13b, 16b or the EMC shield 12b.
  • the protective layer 16b has one or more bands 14b, which are wound obliquely inwards around the insulating layer 18b. Lateral ends of the band 14b, or the bands may overlap, thereby ensuring a good cohesion of the protective layer 6b.
  • the band 14b, or the bands made of a different material than ge Foamed plastic.
  • a material of the at least one band 14b is formed, for example, from a fiberglass material.
  • the at least one band 14b is wound around the insulating layer 18b during a production process of the electric cable device by a suitable banding method.
  • FIG. 3 shows a third exemplary embodiment of the electrical cable device according to the invention.
  • the electric cable device is intended for use in a high voltage network.
  • the electric cable device comprises a first conductor core 10c, a further second conductor core 15c and a further third conductor core 19c.
  • the conductor cores 10c, 15c, 19c are intended to be merged into a multi-core conductor core.
  • Each of the conductor cores 10c, 15c, 19c has an insulating layer 11c, 18c, 20c each provided to electrically insulate the conductor core 10c, 15c, 19c from an environment.
  • the electrical cable device has an EMC shield 12c.
  • the EMC shield 12c is formed as a thin aluminum layer wound around the two conductor cores 10c, 15c.
  • the electric cable device has a protective jacket 17c.
  • the protective jacket 17c completely encloses the EMC shield 12c.
  • the electric cable device has a protective layer 13c.
  • the protective layer 13c is disposed between the conductor cores 10c, 15c and the EMC shield 12c.
  • the protective layer 13c has interwoven single filaments.
  • the individual filaments are braided in a production process around the insulating layers 11c, 18c, 20c of the three conductor cores 10c, 15c, 19c.
  • the individual filaments are cross-braided around the conductor cores 10c, 15c, 19c.
  • the individual filaments may be intertwined with one another in a different manner that appears appropriate to a person skilled in the art, for example meandering.
  • the individual filaments have a close mesh, forming a closed protective layer.
  • the protective layer 13c is coated with a film, not shown.
  • the film, not shown consists of Polymit, which has a good temperature resistance.
  • the foil is disposed between the protective layer 13c and the EMC shield 12c. The film is substantially thinner than the protective layer 13c.
  • a filling medium 21c is arranged, which supports the conductor cores 10c, 15c, 19c and holds them in a desired position.
  • the filling medium 21c may in principle also be formed integrally with the insulating layers 11c, 18c, 20c or the protective layer 13c.
  • FIG. 4 shows a fourth exemplary embodiment of the electrical cable device according to the invention.
  • the electric cable device is intended for use in a high voltage network.
  • the electric cable device comprises a conductor core 10d.
  • the electric cable device comprises an insulation layer 11d which completely surrounds the conductor core.
  • the electrical cable device has an EMC shield 12d.
  • the EMC shield 12d is formed as a thin aluminum layer wound around the conductor core 10d.
  • the electric cable device has a protective layer 13d mounted between the insulating layer 11d and the EMC shield 12d for damping external forces.
  • the protective layer 13d is fixedly connected to the insulating layer 11d.
  • the protective layer 13d has interwoven single filaments.
  • the individual filaments are braided crosswise around the conductor core 10d. In principle, it is also possible for the individual filaments to be intertwined with one another in a different manner that appears appropriate to a person skilled in the art, for example meandering.
  • the individual filaments of the protective layer 13d are intended to be braided in a production process immediately after the application of the insulating layer 11d in a suitable manner to the still at least partially liquid plastic of the insulating layer 11d.
  • the individual filaments are placed in the plastic of the insulating layer 11d and thus bond firmly to the insulating layer 11d.
  • the braided individual filaments of the protective layer 13d enter into a cohesive connection with the insulating layer 11d.
  • the protective layer 13d and the insulating layer 11d are non-destructively connected to each other in an inseparable manner. A distinction of the insulating layer 11d and the protective layer 13d can be seen in a cross section of the electric cable device.
  • a protective layer can have all sorts of structures described above in any order.
  • a protective layer consist of a single conductor core of a foamed plastic and a layer of single filaments braided over it.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Insulated Conductors (AREA)

Abstract

L'invention concerne un système de câble électrique, destiné en particulier à être utilisé dans un réseau électrique à haute tension et comprenant au moins une âme électriquement conductrice (10a; 10b; 10c; 10d), une couche d'isolation (11a; 11 b; 11c; 11d) enveloppant la ou les âmes conductrices (10a; 10b; 10c; 10d) pour les isoler, et un blindage CEM (12a; 12b; 12c; 12d) disposé à l'extérieur de la couche d'isolation. Le système de câble électrique comprend au moins une couche protectrice (13a; 13b; 13c; 13d) disposée entre la couche d'isolation (11a; 11 b; 11c; 11 d) et le blindage CEM (12a; 12b; 12c; 12d) et destinée à l'amortissement mécanique de forces agissant de l'extérieur.
PCT/EP2011/005665 2010-12-09 2011-11-11 Système de câble électrique WO2012076096A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010053953A DE102010053953A1 (de) 2010-12-09 2010-12-09 Elektrokabelvorrichtung
DE102010053953.8 2010-12-09

Publications (1)

Publication Number Publication Date
WO2012076096A1 true WO2012076096A1 (fr) 2012-06-14

Family

ID=45023780

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/005665 WO2012076096A1 (fr) 2010-12-09 2011-11-11 Système de câble électrique

Country Status (2)

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DE (1) DE102010053953A1 (fr)
WO (1) WO2012076096A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013103659U1 (de) * 2013-08-13 2014-11-14 Rehau Ag + Co. Textiles Flächengebilde
CN109849811B (zh) * 2018-11-26 2020-06-30 北京所为科技有限公司 线束防护装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1134749A1 (fr) * 2000-03-06 2001-09-19 Nexans Câble électrique
DE10315609A1 (de) * 2003-04-05 2004-10-21 Nexans Datenübertragungskabel
DE10329857B3 (de) 2003-07-02 2004-12-30 Verta Ag Schutzvorrichtung für längliche Körper
US20060213681A1 (en) * 2005-03-28 2006-09-28 Scott Magner Method and apparatus for a sensor wire
EP1760505A1 (fr) * 2005-08-31 2007-03-07 Nexans Cable de connexion
DE102006027498A1 (de) * 2006-06-14 2007-12-20 Iprotex Gmbh & Co. Kg Mechanisches Schutzschlauchsystem für elektrische Leitungen, insbesondere in Kraftfahrzeugen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1134749A1 (fr) * 2000-03-06 2001-09-19 Nexans Câble électrique
DE10315609A1 (de) * 2003-04-05 2004-10-21 Nexans Datenübertragungskabel
DE10329857B3 (de) 2003-07-02 2004-12-30 Verta Ag Schutzvorrichtung für längliche Körper
US20060213681A1 (en) * 2005-03-28 2006-09-28 Scott Magner Method and apparatus for a sensor wire
EP1760505A1 (fr) * 2005-08-31 2007-03-07 Nexans Cable de connexion
DE102006027498A1 (de) * 2006-06-14 2007-12-20 Iprotex Gmbh & Co. Kg Mechanisches Schutzschlauchsystem für elektrische Leitungen, insbesondere in Kraftfahrzeugen

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