EP3264426B1 - Cable electrique blinde et sa methode de fabrication - Google Patents

Cable electrique blinde et sa methode de fabrication Download PDF

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Publication number
EP3264426B1
EP3264426B1 EP16177196.9A EP16177196A EP3264426B1 EP 3264426 B1 EP3264426 B1 EP 3264426B1 EP 16177196 A EP16177196 A EP 16177196A EP 3264426 B1 EP3264426 B1 EP 3264426B1
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EP
European Patent Office
Prior art keywords
cable
electrical component
electrical
cores
cable according
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.)
Active
Application number
EP16177196.9A
Other languages
German (de)
English (en)
Other versions
EP3264426A1 (fr
Inventor
Martin Huber
Johannes TRÄ
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.)
MD Elektronik GmbH
Original Assignee
MD Elektronik 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 MD Elektronik GmbH filed Critical MD Elektronik GmbH
Priority to EP16177196.9A priority Critical patent/EP3264426B1/fr
Priority to DE102017207211.3A priority patent/DE102017207211A1/de
Priority to CN201710381695.6A priority patent/CN107564604B/zh
Priority to US15/618,142 priority patent/US10249413B2/en
Priority to MX2017008646A priority patent/MX2017008646A/es
Publication of EP3264426A1 publication Critical patent/EP3264426A1/fr
Application granted granted Critical
Publication of EP3264426B1 publication Critical patent/EP3264426B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H01B11/1895—Particular features or applications
    • 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
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
    • 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
    • H01B7/009—Cables with built-in connecting points or with predetermined areas for making deviations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/53—Fixed connections for rigid printed circuits or like structures connecting to cables except for flat or ribbon cables

Definitions

  • the invention relates to a shielded electrical cable according to the preamble of claim 1, in particular in the form of a cable for data transmission in motor vehicles.
  • Such a cable which is designed to be elongated in the usual way, comprises at least two electrically conductive cores which extend alongside one another along the cable longitudinal direction (eg parallel to one another or in a twisted form) and whose electrically conductive components (strands) are spaced apart transversely to the cable longitudinal direction, and at least one electrically insulating body, eg in the form of an electrically insulating layer, by means of which the wires are insulated from one another, and furthermore a cable shield serving the electrical shield of the cable, which runs along with the wires along the cable longitudinal direction and encloses the wires in cross-section annularly.
  • This is a classic design of a multi-core (at least two-core) cable-shielded electrical cable.
  • the cable may be disposed between the wires and the cable shield, an electrical component which is enclosed by the cable shield and which is placed on each of the two spaced apart wires (eg, laid on) and in each case in electrical contact with these.
  • an electrical cable is from the US 2016/142030 A1 known.
  • the invention is based on the problem to expand the functionality of such a cable.
  • the electrical component can be an active electrical component, such as an active RFID element ("radio-frequency identification"), an integrated circuit, for example an ASIC ("application-specific integrated circuit") or an ASSP ("application Specific Standard Product "), or even to a passive electrical component, acting as a passive RFID element.
  • active electrical component such as an active RFID element ("radio-frequency identification"), an integrated circuit, for example an ASIC ("application-specific integrated circuit") or an ASSP ("application Specific Standard Product "), or even to a passive electrical component, acting as a passive RFID element.
  • Electronic components, and in particular semiconducting components, which may for example be designed as "bare die”, are encompassed by that term.
  • the electrical component is suitable for signal transmission via radio waves, such as in the case of RFID elements, it is advantageous if the signal transmission in a frequency range less than 15 MHz, in particular less than 150 kHz is made.
  • the electrical component is integrated into the electrical cable such that that component (for example, with a carrier body of the component, such as a circuit board) is placed on two spaced wires of the cable, so in particular rests against these (and thereby simultaneously is in electrical contact with them).
  • a carrier body of the component such as a circuit board
  • electrical components which have hitherto been known e.g. were integrated into a (end) arranged on a cable connector, now arrange in a region of the cable outside the connector and record. That is, the electrical component is selectively disposed outside a portion of the electric cable provided with electrical connector elements for making electrical connection with an electrical mating connector.
  • connection elements For electrical contacting of the wires of the cable, on which the electrical component is mounted, this may have from its support body projecting electrical connection elements, via which the electrical component rests against the wires of the cable.
  • the connection elements can be designed, for example, as rigid electrical connection points, via which the carrier body of the electrical component is firmly in contact with the relevant wires.
  • the fixing of the electrical component to a respective wire of the cable can in particular be made cohesively, for example by the electrical component via the (formed on its support body) electrical connection elements (connection points) is firmly bonded to the respective wires of the cable.
  • the integral connection can be made by soldering, welding or by an electrically conductive adhesive.
  • the production of the cohesive connection can accordingly lead to a melting of the electrical connection elements / connection points.
  • the at least one insulating body of the cable is partially removed, around one To create space for receiving the electrical component.
  • the local removal of the insulating body can be carried out thermally or mechanically, for example by planar and / or contour-guided and / or circumferential removal of the insulating body.
  • the wires of the cable at the point at which the electrical component is arranged can be enclosed together with that electrical component by a protective layer produced separately from the insulating body, for example in the form of an encapsulation, an encapsulation and / or by an adhesive bond ,
  • a protective layer produced separately from the insulating body, for example in the form of an encapsulation, an encapsulation and / or by an adhesive bond .
  • a method for producing the electric cable according to the invention is characterized by the features of claim 14.
  • the - the wires of the cable and arranged thereon (at least one) electrical component - shield of the cable is only externally applied to the cable when the respective electrical component at the intended location on the wires of the cable fixed and contacted with these electrically.
  • FIGS. 1a to 1d is a two-core, shielded electrical cable shown, the wires 1, 2 made of an electrically conductive material.
  • the two wires 1, 2 of the cable run side by side along a cable longitudinal direction L. Transversely to the cable longitudinal direction L, the two wires 1, 2 are spaced apart.
  • the two wires 1, 2 are substantially parallel to each other; Alternatively, these can also be arranged twisted together.
  • FIGS. 1a and 1b refer to the technical background of the invention; However, they show no embodiment.
  • the cable is generally flexible, so that the cable longitudinal direction L does not necessarily have to be rectilinear, as shown in the figures. Rather, the cable longitudinal direction L also follow a (possibly multiple) curved course of the cable
  • the two wires 1, 2 of the cable are electrically isolated from each other.
  • each of the two cores 1, 2 each surrounded by an electrically insulating body (insulation 12 or 22), in particular in the form of an insulating layer.
  • the two wires 1, 2 (along their circumference) at least partially, in the embodiment of FIGS. 1a to 1d even completely circulating, from the insulation 12, 22 freed.
  • an electrical component 3 is placed on the wires 1, 2.
  • the component may be an RFID element that may be designed as a passive or active electrical component.
  • electrical component expressly includes electronic components and in particular also semiconducting components.
  • the electrical component 3 is placed on the two wires 1, 2 of the cable in such a way that an electrical connection with both wires 1, 2 is made.
  • the electrical component 3 as described below FIG. 2b will be explained in more detail, electrical connection elements, via which the electrical component 3 is placed on the wires 1, 2 of the cable, so that on the one hand (via those connection elements) on the wires 1, 2 rests and on the other hand electrically to the wires 1, 2 is connected.
  • the carrier body 30 of the electrical component 3 is designed as a circuit board, on which the components of the electrical component, such as semiconducting or other electronic components, are arranged.
  • the components of the electrical component 3 to the wires 1, 2 can be connected.
  • the two wires 1, 2 are electrically coupled to one another via the electrical component 3.
  • at least one of the two cores 1, 2 in the region in which the electrical component 3 is arranged have an interruption 11 or 21, which is bridged by the electrical component 3.
  • the electrical component 3 (also) is used for coupling two sections of the respective wire 1, 2 on both sides of the interruption 11 and 21st
  • the cores 1, 2 with the associated insulation 12, 22 and the electrical component 3 are enclosed by an electrical shielding of the cable serving cable screen 4 made of an electrically conductive material.
  • the cable shield 4 extends together with the wires 1, 2 along the cable longitudinal direction L, so that the wires 1, 2 are annularly surrounded by the cable shield 4 in cross-section.
  • the same applies to the electrical component 3. In FIG. 1a the cable shield 4 is shown only on the right part of the cable with, in order to make visible on the left part of the cable, the wires 1, 2 and their insulation 12, 22 and the electrical component.
  • a plurality of electrical components along the cable longitudinal direction L spaced from each other on the wires 1, 2 may be placed on the cable.
  • the attachment of the electrical component 3 to the cores 1, 2 via the associated connection elements can in particular be made cohesively, for example by welding, soldering or by using an electrically conductive adhesive.
  • the production of the cohesive connection can accordingly lead to a melting of the electrical connection elements.
  • the stripping in sections of the cores 1, 2, in order to allow electrical contact with the electrical component 3, in particular can be effected mechanically or thermally, the latter for example by means of laser radiation.
  • a planar removal of the insulation 12, 22, a contoured removal of the insulation 12, 22 or a circumferential removal of the insulation 12, 22, as shown in FIGS. 1a and 1b recognizable be provided.
  • the (partially) stripped point at which the electrical component 3 is arranged can be provided with a protective layer, for example in the form of an encapsulation or encapsulation, as explained in more detail below Figure 2c shown.
  • the electrical component 3 it is further important in the present case for the electrical component 3 to rest against the wires 1, 2 thereof in a region of the cable which is free of electrical plug elements, over which an electrical contact with a mating connector would produce. That is, the electrical component 3 is integrated directly into the electrical cable itself. It should not form part of an electrical connector and in particular not be arranged in the connector housing of a connector. For illustration is in FIG. 1b at one axial end of the cable, a connector 8 with a connector housing 80 and electrical connector elements 81 indicated, via which the electrical cable can be brought into electrical contact with a mating connector.
  • the electrical component 3, which according to the FIGS. 1a to 1d is integrated in the cable by abutting its wires 1, 2, is then arranged outside of the connector 8 and in particular outside of the plug housing 80.
  • the electrical component 3 is located on the electrical cable within the space surrounded by the cable shield 4.
  • the cable including the cable shield 4 can additionally be surrounded by a cable sheath 6.
  • FIGS. 2a to 2d are individual process steps for producing a cable in the FIGS. 1a to 1d shown type shown in the FIGS. 2a to 2d
  • the individual strands of the wires 1, 2 of the cable are recognizable and wherein in the specific embodiment, the following differences from the electrical cable from the FIGS. 1a to 1d exist: First, according to the FIGS. 2a to 2d at the point of the wires 1, 2, to which the electrical component 3 is placed on the former, no interruption of the wires 21, 22 are provided. Furthermore, the arrangement of the electrical component 3 to the wires 1, 2 according to the FIGS. 2a to 2d the associated insulation 12, 22 removed only on one side of the wires, so not circumferentially removed, as in the case of FIGS.
  • FIG. 2a shows two each with an insulation 12 or 22 provided cores 1, 2 of an electric cable, which extend side by side along a cable longitudinal direction L and which are spaced transversely to the cable longitudinal direction L from each other.
  • the two wires 1, 2 are so partially freed from the respective insulation 12, 22, that a receiving area 10, 20 is provided for an electrical component 3, which is placed on the wires 1, 2 and rests against this.
  • the electrical component 3 in FIG. 2b As shown by the separate representation of the electrical component 3 in FIG. 2b becomes clear, this has for electrical contacting of the cores 1, 2 electrical connection elements 31, 32 in the form of (rigid) electrical connection points, which protrude slightly from the electrical component 3 or in the exemplary embodiment of the carrier body 30.
  • the carrier body 30 is designed here as a circuit board.
  • the electrical and / or electronic components of the device 3 are arranged.
  • the electrical connection elements 31, 32 are those components of the electrical component with the wires 1, 2 of the cable in electrical connection can be brought and fixed thereto.
  • the fixing of the electrical component 3 to the wires 1, 2 via the associated connection elements 31, 32 can in particular be made cohesively, for example by welding, soldering or using an electrically conductive adhesive.
  • the production of the cohesive connection can accordingly lead to a melting of the electrical connection elements 31, 32.
  • a next step is according to Figure 2c the partially stripped and provided with the electrical component 3 portion of the cable covered with a protective layer 5.
  • the protective layer 5 serves, on the one hand, to protect the wires 1, 2 and the electrical component 3 from environmental influences. On the other hand, it can also cause a vibration damping.
  • an improved support and guidance of the wires 1, 2 and the electrical component 3 encompassing cable shield can be achieved hereby.
  • the cores 1, 2 including their insulation 12, 22 and including the partially stripped and provided with the electrical component 3 area enclosed by a cable shield 4.
  • a cable shield 4 This can for example be designed as a (metallic) film, in particular an aluminum foil.
  • the foil is wound to form a cable shield 4 around the wires 1, 2, together with the associated insulation 12, 22.
  • the cable shield 4 is used for electrical shielding, in particular the shielding of the cable over its entire length along the cable longitudinal direction L away.
  • This arrangement can in turn, as based on the FIGS. 1a to 1d explained, be surrounded by an outer cable sheath 6.
  • the cable sheath 6 can be applied with an extruder or by means of an extrusion process around the cable shield 4 extending along the cable longitudinal direction L.
  • a plurality of electrical components 3 along the cable longitudinal direction L spaced apart from one another can be attached to the cable.
  • this can be done for the purpose of being able to use a plurality of electrical components when using the cable.
  • it can also be provided to divide the cable during assembly into a multiplicity of individual (partial) cables which then each have one of the electrical components of the original (endless) cable.
  • the cable has, for example, an electrical component 3 in the form of an RFID element.
  • an electrical component 3 in the form of an RFID element.
  • Such a cable can be clearly identified by a corresponding reader or by a readout electronics.
  • the cable can be identified for example during assembly in the motor vehicle, so that a reliable quality assurance of the assembly process can be made possible.
  • a corresponding cable is connected to a control unit of a motor vehicle.
  • data which are fed, for example, from the control unit into the cores 1, 2, can be transmitted into the electrical component 3 and stored there by the contacts of the electrical component 3 to the cores 1, 2.
  • data may include error information or operating time information. This data can be read, for example, in case of service by an external device.
  • a read-out electronics are permanently mounted in the motor vehicle in the vicinity of such a cable or in the vicinity of a wiring harness, which has a plurality of such cables. This can be queried, for example, at certain time intervals, whether actually original cables are installed and / or if error information is available. In this way, a safeguard against manipulation of the relevant harness is to be ensured. Especially in safety-relevant applications, especially after service cases, this feature can be particularly advantageous.
  • the complete wiring harness can be effectively checked by querying a checksum composed of all the ID numbers of the individual cables.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulated Conductors (AREA)

Claims (15)

  1. Câble électrique blindé, comportant
    - au moins deux conducteurs (1, 2) qui s'étendent côte à côte dans la direction longitudinale (L) du câble,
    - une isolation (12, 22) au moyen de laquelle les conducteurs (1, 2) sont isolés électriquement les uns des autres, et
    - un blindage de câble (4) qui s'étend conjointement avec les conducteurs (1, 2) dans la direction longitudinale (L) du câble et entoure les conducteurs (1, 2) de manière annulaire en coupe transversale,
    dans lequel au moins un composant électrique (3) est disposé entre les conducteurs (1, 2) et le blindage de câble (4), lequel composant est entouré par le blindage de câble (4) et est positionné sur les deux conducteurs (1, 2) espacés l'un de l'autre et est donc respectivement en contact électrique avec ceux-ci,
    dans lequel l'isolation (12, 22) des conducteurs (1, 2) est partiellement enlevée à l'emplacement où le composant électrique (3) est situé pour ménager un réceptacle destiné au composant électrique (3), et
    dans lequel le blindage de câble (4) est réalisé sous la forme d'une feuille métallique,
    caractérisé en ce que les conducteurs (1, 2) ne présentent aucune interruption à l'emplacement où le composant électrique (3) est placé sur les conducteurs (1, 2).
  2. Câble selon la revendication 1, caractérisé en ce que le composant électrique (3) comporte un corps porteur (30) qui prend appui sur chacun des deux conducteurs (1, 2) par l'intermédiaire d'éléments de raccordement électriques (31, 32) formés sur le corps porteur (30).
  3. Câble selon la revendication 2, caractérisé en ce que les éléments de raccordement électriques (31, 32) formés sur le corps porteur (30) sont réalisés sous la forme d'emplacements de raccordement électriques fixes par l'intermédiaire desquels le corps porteur (30) peut prendre appui en position fixe sur les conducteurs (1, 2).
  4. Câble selon la revendication 2 ou 3, caractérisé en ce que le corps porteur (30) est réalisé sous la forme d'une carte de circuit imprimé.
  5. Câble selon l'une des revendications précédentes, caractérisé en ce que le composant électrique (3) est fixé par complémentarité de matériau au conducteur respectif (1, 2).
  6. Câble selon les revendications 2 et 5, caractérisé en ce que le composant électrique (3) est fixé par complémentarité de matériau au conducteur respectif (1, 2) par l'intermédiaire des éléments de raccordement électriques (31, 32).
  7. Câble selon l'une des revendications précédentes, caractérisé en ce que les conducteurs (1, 2), à l'emplacement où le composant électrique (3) est disposé et conjointement avec ledit composant électrique (3), est entouré par une couche de protection (5) réalisée séparément de la couche isolante, qui est elle-même entourée par le blindage de câble (4).
  8. Câble selon l'une des revendications précédentes, caractérisé en ce que le composant électrique (3) est disposé dans une zone du câble qui est exempte d'éléments électriques enfichables réalisés pour établir un contact électrique avec une fiche complémentaire.
  9. Câble selon l'une des revendications précédentes, caractérisé en ce qu'au moins un connecteur enfichable (8), qui comporte au moins un élément électrique enfichable (81) destiné à établir un contact électrique avec une fiche complémentaire, est raccordé au câble, et en ce que le composant électrique (3) est disposé à l'extérieur du connecteur enfichable (8).
  10. Câble selon la revendication 9, caractérisé en ce que le composant électrique (3) est disposé à l'extérieur d'un boîtier de fiche (80) du connecteur enfichable (8).
  11. Câble selon l'une des revendications précédentes, caractérisé en ce que le composant électrique (3) est réalisé sous la forme d'un composant électrique passif.
  12. Câble selon l'une des revendications précédentes, caractérisé en ce que le composant électrique (3) est réalisé sous la forme d'un composant électrique actif.
  13. Câble selon l'une des revendications précédentes, caractérisé en ce qu'une pluralité de composants électriques (3) sont disposés sur le câble les uns à la suite des autres et de manière espacée les uns des autres dans la direction longitudinale (L) du câble.
  14. Procédé de fabrication d'un câble électrique blindé selon l'une des revendications précédentes, caractérisé en ce que
    a) l'isolation (12, 22) des conducteurs (1, 2) est enlevée au moins partiellement dans une partie des conducteurs (1, 2),
    b) un composant électrique (3) est placé dans la partie dénudée sur les deux conducteurs (1, 2) espacés l'un de l'autre, de manière à ce qu'il soit respectivement en contact électrique avec lesdits conducteurs, dans lequel les conducteurs (1, 2) ne présentent aucune interruption à l'emplacement où le composant électrique (3) est placé sur les conducteurs (1, 2),
    c) les conducteurs (1, 2), y compris l'isolation (12, 22), ainsi que le composant électrique (3), sont entourés par un blindage de câble (4) qui s'étend dans la direction longitudinale (L) du câble et qui est réalisé sous la forme d'une feuille métallique.
  15. Procédé selon la revendication 14, caractérisé en ce que le blindage de câble (4) est entouré, conjointement avec le composant (3) entouré par le blindage de câble (4), d'une gaine de câble (6) qui s'étend dans la direction longitudinale (L) du câble, en particulier à l'aide d'un processus d'extrusion.
EP16177196.9A 2016-06-30 2016-06-30 Cable electrique blinde et sa methode de fabrication Active EP3264426B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP16177196.9A EP3264426B1 (fr) 2016-06-30 2016-06-30 Cable electrique blinde et sa methode de fabrication
DE102017207211.3A DE102017207211A1 (de) 2016-06-30 2017-04-28 Geschirmtes elektrisches Kabel
CN201710381695.6A CN107564604B (zh) 2016-06-30 2017-05-25 被屏蔽的电缆
US15/618,142 US10249413B2 (en) 2016-06-30 2017-06-09 Shielded electrical cable
MX2017008646A MX2017008646A (es) 2016-06-30 2017-06-28 Blindaje de cable electrico.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16177196.9A EP3264426B1 (fr) 2016-06-30 2016-06-30 Cable electrique blinde et sa methode de fabrication

Publications (2)

Publication Number Publication Date
EP3264426A1 EP3264426A1 (fr) 2018-01-03
EP3264426B1 true EP3264426B1 (fr) 2019-01-09

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EP16177196.9A Active EP3264426B1 (fr) 2016-06-30 2016-06-30 Cable electrique blinde et sa methode de fabrication

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Country Link
US (1) US10249413B2 (fr)
EP (1) EP3264426B1 (fr)
CN (1) CN107564604B (fr)
DE (1) DE102017207211A1 (fr)
MX (1) MX2017008646A (fr)

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MX2017008646A (es) 2018-09-10
US20180005730A1 (en) 2018-01-04
DE102017207211A1 (de) 2018-01-04
CN107564604A (zh) 2018-01-09
EP3264426A1 (fr) 2018-01-03
CN107564604B (zh) 2020-07-24
US10249413B2 (en) 2019-04-02

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