EP3570387B1 - Système de connexion de câble comportant une enveloppe de fixation de câble - Google Patents

Système de connexion de câble comportant une enveloppe de fixation de câble Download PDF

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Publication number
EP3570387B1
EP3570387B1 EP18172626.6A EP18172626A EP3570387B1 EP 3570387 B1 EP3570387 B1 EP 3570387B1 EP 18172626 A EP18172626 A EP 18172626A EP 3570387 B1 EP3570387 B1 EP 3570387B1
Authority
EP
European Patent Office
Prior art keywords
shell
cable
housing
shells
protrusions
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
EP18172626.6A
Other languages
German (de)
English (en)
Other versions
EP3570387A1 (fr
Inventor
Pawel Lesniak
Robert Ziemba
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.)
Aptiv Technologies Ltd
Original Assignee
Aptiv Technologies Ltd
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 Aptiv Technologies Ltd filed Critical Aptiv Technologies Ltd
Priority to EP18172626.6A priority Critical patent/EP3570387B1/fr
Publication of EP3570387A1 publication Critical patent/EP3570387A1/fr
Application granted granted Critical
Publication of EP3570387B1 publication Critical patent/EP3570387B1/fr
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/5804—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part
    • H01R13/5816—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part for cables passing through an aperture in a housing wall, the separate part being captured between cable and contour of aperture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/506—Bases; Cases composed of different pieces assembled by snap action of the parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205—Sealing means between cable and housing, e.g. grommet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles

Definitions

  • the present invention relates to a cable connection system in accordance with the preamble of claim 1 ( WO 2007/113307 A1 ). Further cable connection systems are disclosed in EP 3 093 929 A1 and US 2004/177989 A1 .
  • Cables are typically used to transfer energy and/or information, for example between different components provided in a car.
  • electrical connectors are typically applied.
  • a male-ended connector and a female-ended connector may thereby be connected, whereby the connection may be temporary or permanently.
  • Connectors with electrical crimps are one type of such electrical connections.
  • Crimp connectors are typically used to terminate stranded wires. Thereby, the wire may be inserted into a terminal, and the terminal may than be cold-welded onto the wire. The terminal may be connected to a respective counter-connector.
  • a connector may comprise a housing, which may house one or more wires, and may be adapted to be secured to a housing of the respective counter-connector, or to a supporting structure, for example.
  • crimp metal ferrules are typically used. Thereby, a metal ferrule may be crimped on a cable braid, using a suitable crimping tool. Afterwards, for mounting the housing, the housing may be arranged over the crimped metal ferrule, or the metal ferrule with the cable may be inserted into the housing.
  • Figure 1 shows a cable connection system according to a prior art design.
  • Terminals 30' are provided on cables 20', and crimp metals ferrules 10' are crimped on the cables 20'.
  • a housing 40' is provided over the crimp metal ferrules 10', and a seal retainer 50' is further attached to the housing 40'.
  • the prior art design has several drawbacks: As can be depicted from figure 1 , the terminals 30' have different orientations, as the prior art design does not provide for a fixed orientation of the terminals 30'. Further, the terminals 30' (and cables 20') can be pulled out of the housing, as the crimp metal ferrules 10' are not fastened to the housing 40'.
  • the present invention relates to a cable connection system.
  • the cable connection system may thereby comprise an electrical connector, which may be adapted to be connected to a respective counter-connector.
  • the counter-connector may thereby also be part of the cable connection system.
  • the cable connection system may thereby allow for a temporary or permanent electrical connection between the connectors.
  • the cable connection system thereby comprises a cable having an insulation sleeve.
  • the cable may be an electrical cable, having a wire insulated from its surroundings by means of the insulation sleeve.
  • the insulation sleeve may be made of or comprise cloth, rubber, paper and/or plastic components.
  • the cable may further comprise a dielectric insulator, and/or a metallic shield, for example.
  • the cable connection system further comprises a closable plastic shell encompassing the cable.
  • the shell may thus essentially be formed of a plastic material, wherein the plastic material of the shell may be harder and feature a higher tensile strength with regard to a plastic component of the insulation sleeve.
  • the plastic shell is thereby closable, such that it may be closed around the cable.
  • the shell Upon closing the shell around the cable, the shell is fixed thereon.
  • the plastic shell may be provided in form of an interrupted ring, wherein a gap in the ring can be widened to place the cable inside the plastic shell, and wherein the gap can then be closed so that the shell essentially encompasses the cable.
  • the open ends of the ring can then be interconnected, for example by a clip system, to prevent an unwanted removal of the cable from the shell.
  • the plastic shell may be provided as a multi-part shell, wherein the shell may comprise two or more parts, which are interconnectable to be closed around the cable, and to thereby encompass the cable.
  • the shell comprises inner protrusions for fixing the shell to the insulation sleeve of the cable.
  • the shell features protrusions on the inner side of the shell, i.e. on the side facing the cable.
  • the protrusions may extend towards the center of the cable.
  • the protrusions can be of any suitable form, and can be, for example, ribs or (elongated) nubs.
  • These inner protrusions of the shell thereby allow for fixing the shell to the insulation sleeve of the cable in a secure manner.
  • the protrusions may fix the shell to the insulation sleeve by means of traction. When the shell is closed around the cable, the inner protrusions may act on the insulation sleeve of the cable, preventing displacement of the shell.
  • the cable connection system comprises a housing attached to the shell.
  • the housing may encompass the shell and the cable.
  • the shell, the cable and the housing may be provided as individual parts.
  • the housing is essentially attached to the cable.
  • the plastic shell thus ensures for a proper attachment of the housing to the cable.
  • the shell may comprise attaching means
  • the housing may comprise respective counter attaching means.
  • the attachment may be in a form-fitting manner, preventing a relative orientation of the housing to the shell.
  • the shell is made of a plastic material, costs are reduced with regard to solutions were metal crimp ferrules are used.
  • the inner protrusions of the shell provide for a secure fixation to the cable.
  • the shell can be fixed to the cable in an easy, safe, reliable and resistant manner.
  • the cable connection system is preferably an unshielded connector system.
  • the cable may thereby be free of a cable braid.
  • the use of the plastic shell is of particular advantage, as the plastic shell it can be provided at different sizes at low cost. No advanced crimping equipment is required, as a plastic shell at any size can be easily provided at and fixed to the cable.
  • the shell comprises at least two shell-parts.
  • the shell may be provided as multi-part shell. Each shell-part may thereby partially encompass the cable.
  • the shell-parts may be interconnected in order to close the shell-parts around the cable.
  • the shell comprises two half-shells, which each cover one half of the cable.
  • the shell-parts (or half-shells) may thereby be assembled together by means of a clip system.
  • the shell-parts may be provided around the cable, and then assembled together in an easy manner.
  • the clip system may comprise a hook and corresponding loop, wherein the hook can be inserted into the loop to interconnect the shell-parts. Thereby, the shell can be assembled around the cable, and if desired, also be un-assembled in an easy manner.
  • the shell-parts or half-shells are equal in their structure.
  • two structurally identical half-shells may be provided and assembled together around the cable. This additionally reduces the manufacturing costs, as only one injection mold is required for producing the multi-part plastic shell.
  • an inner diameter of the shell is smaller than an outer diameter of the cable at an area free of the shell.
  • the cable may have an outer diameter which is larger than an outer diameter of the cable at an area covered by the shell. This allows for properly fixing the shell to the cable.
  • the shell at least partially squeezes the insulation sleeve of the cable.
  • the inner protrusions of the shell may squeeze the insulation sleeve of the cable in order to fix the shell to the cable in a safe manner, preventing a displacement of the shell along the cable.
  • the person skilled in the art understands to choose a proper material for the plastic shell, or at least for the inner protrusions, in order to allow for squeezing the insulation sleeve of the cable.
  • the inner protrusions of the shell are inner ribs, which encompass the cable.
  • the inner ribs may thereby form rings around the cable, when the shell is fixed to the cable. This structure provides for a particular strong fixation of the shell to the cable, effectively preventing a displacement of the shell along the cable.
  • the shell has outer protrusions, preferably outer ribs, which at least partially engage the housing.
  • the outer protrusions may extend along a main direction of the cable, i.e. along the cable itself. This provides for a particular strong attachment of the housing to the shell in a rotation-secure manner, as the interplay of the elongated ribs with the housing prevents a rotation of the housing around the cable.
  • the housing has recesses, which at least partially receive the outer protrusions of the shell. Due to the interplay of the outer protrusions of the shell with the recesses of the housing, a proper orientation of the cable with respect to the housing can be ensured. A rotation of the cable relative to the housing is thereby efficiently prevented.
  • the recesses of the housing and the outer protrusions of the shell are aligned at least partially in a form-fitting manner.
  • the form-fit may prevent a rotation of the housing around the shell.
  • the recesses of the housing and the outer protrusions of the shell may thereby be keyed.
  • This interplay of the housing and shell may prevent attachment of the housing to the shell except when the shell and the housing are provided in a desired orientation relative to each other.
  • a misalignment of the cable with regard to the housing upon assembly is prevented.
  • the recesses of the housing and the outer protrusions of the shell are keyed such that the shell can be arranged inside the housing in four or less orientations, further preferred in three or less orientations, further preferred in two or less orientations and most preferred in only a single orientation.
  • the shell can be arranged inside the housing in four or less orientations, further preferred in three or less orientations, further preferred in two or less orientations and most preferred in only a single orientation.
  • the shell has a collar extending from the shell, and the housing has one or more blocking ribs, which engage the collar of the shell.
  • the blocking ribs may thereby engage the collar of the shell along the main direction of the cable.
  • the system further comprises a seal retainer engaging the collar of the shell.
  • the seal retainer is attached to the housing, and the seal retainer engages the collar of the shell on a side opposite to the side which is engaged by the blocking ribs of the housing.
  • the seal retainer is provided together with a seal, which is held in position by the seal retainer.
  • the seal may be provided to protect the shell.
  • the seal retainer engages the collar of the shell to come into blocking contact therewith if pushing and/or pulling forces are applied to the cable.
  • the system further comprises a terminal attached to the cable.
  • the terminal may thereby be crimped to the cable, for example to an end of the wire, in proximity to the shell fixed on the cable.
  • the person skilled in the art understands that several cables, each provided with a shell, may be provided in the housing.
  • FIG. 2 presents a part of a shell of a cable connection system according to an embodiment of the present invention.
  • a half-shell 10 is shown, which is of a plastic material, and is preferably free of metals.
  • the half-shell 10 may thereby be produced by injection molding, as will be appreciated by the person skilled in the art.
  • the half-shell 10 comprises outer ribs 11, which are provided in an elongated form and parallel to a main central axis of the half-shell 10.
  • the half-shell 10 features a collar 12, which extends from one end of the shell, away from the main central axis of the half-shell 10.
  • the half-shell 10 comprises a hook 13, which is part of a clip system for interconnecting several such half-shells 10, as will be further described below.
  • FIG 3 illustrates two half-shells 10, which can be interconnected to form a shell of a cable connection system according to an embodiment of the present invention.
  • Each one of the half-shells 10 may correspond to the half-shell 10 presented in figure 2 .
  • the half-shells 10 in figure 3 are identical to each other.
  • Each half-shell 10 is provided with a lash 15, which is located at a side opposite to the hook 13 described with regard to figure 2 .
  • the two half-shells 10 can be arranged around a cable 20, and can then be interconnected and closed by means of the lash 15 and hook 13.
  • the shell formed of the half-shells 10 can be closed around the cable 20.
  • the design of identical half-shells 10 provided with the clip system allows for an easy assembly of the shell to the cable 20. As only one type of half-shells 10 is required, production and storage costs can be reduced.
  • the half-shells 10 further feature inner ribs 14 facing the cable 20.
  • the inner ribs 14 form rings around the cable 20.
  • the provision of the inner ribs 14 allows for fixing the interconnected half-shells 10 to the cable 20, as the inner ribs 14 partially squeeze the cable 20 when the half-shells 10 are closed around the cable 20.
  • a terminal 30 is provided at one end of the cable 20, adapted to be connected to a respective counter-terminal.
  • Figure 4 illustrates the two half-shells 10 of figure 3 in the interconnected or closed state.
  • the half-shells 10 of the closed shell encompass the cable 20.
  • the shell thereby encompasses the cable 20, and is fixed to the cable 20 by means of the inner ribs 14.
  • the inner ribs 14 partially squeeze an insulation sleeve of the cable 20, as will be described in more detail below.
  • FIG. 5 illustrates a housing 40 attached to the shell described with reference to figure 4 .
  • the housing 40 encompasses the shell 10, and thus also the cable 20.
  • the housing 40 comprises a housing collar 42, which extends from the housing 40.
  • locking means in form of a sliding ramp or hook 41 for locking a seal retainer to the housing 40 are provided.
  • Figure 6 presents a cross-sectional view along the length of the cable with interconnected half-shells 10 attached thereto, according to the embodiment of figure 4 .
  • the cable 20 comprises an electrical cable 21, and an insulation sleeve 22 which surrounds the electrical cable 21.
  • the rings formed of the inner ribs 14 of the half-shells 10 extending around the cable 20 have an inner diameter which is smaller than the outer diameter of the cable 20 at a location free of the shell.
  • the ribs 14 of the half-shells 10 squeeze the insulation sleeve 22 at the squeezing portions 23.
  • the insulation sleeve 22 is partially compressed, and thus the shell eventually fixed to the cable 20 by traction. The shell is thereby protected against an undesired displacement along the length the cable 20. Cable movement relative to the shell, and thus relative to a housing 40 attached to the shell, is thereby blocked.
  • Figure 7 presents a cross-sectional view through a cable connection system, according to the embodiment of figure 5 .
  • the electrical cable 21 is encompassed by the insulation sleeve 22, which is in turn encompassed by the shell comprising the two inter-connected half-shells 10, which shell is in turn encompassed by the housing 40.
  • the shell is fixed to the cable 20 by means of the inner-ribs 14 of the half-shells 10.
  • the half-shells 10 are interconnected via the lashes 15 and hooks 13, which were described above with reference to figures 2 and 3 .
  • the shell comprises outer ribs 11, as also described with reference to figure 2 .
  • the housing 40 in turn comprises recesses 43, which receive the outer ribs 11 of the half-shells 10.
  • the outer ribs 11 of the half-shells 10 and the recesses 43 of the housing 40 are thereby aligned in a form-fitting manner, preventing an undesired rotation of the housing 40 relative to the shell.
  • the recesses 43 of the housing 40 and the outer ribs 11 of the half-shells 10 are keyed.
  • the housing 40 can be provided on the shell only in one particular orientation, due to the keying.
  • FIG. 8 illustrates a cross-sectional view along a cable connection system according to a further embodiment of the present invention, which to a large extend corresponds to the cable connection system described with reference to figures 5 and 7 .
  • a shell 10 is provided on a cable 20, and fixed thereon by the inner ribs partially squeezing the insulation sleeve 22 of the cable 20, as also described above with regard to figure 6 .
  • a housing 40 is attached to the shell.
  • the housing 40 comprises a blocking rib 44, which engages the collar 12 of the half-shells 10.
  • the collar 12 of the half-shells 10 comes into blocking contact with the blocking rib 44 of the housing 40.
  • the housing 40 may be secured to a further device, the pulling forces can be efficiently transferred to the housing 40 and the further device. Hence, an undesired relative movement of the cable 20 can be prevented.
  • a seal 60 is provided, which is secured by a seal retainer 50 to the housing 40.
  • the seal retainer 50 is locked to the housing 40 by engaging the hook 41 provided on the housing 40.
  • the seal retainer 50 comprises a tip 51, which engages in the collar 12 of the half-shells 10.
  • the tip 51 of the seal retainer 50 thereby engages the collar 12 on a side opposed to the side engaged by the blocking rib 44 of the housing 40.
  • the seal retainer 50 is connected to the housing 40 via the hook 41 of the housing 40, and as the housing 40 may be secured to a further device, such pushing forces can be efficiently transferred to the housing 40 and the further device. Hence, pulling and pushing forces acting on the cable 20 are efficiently transferred to the housing 40. Hence, the shell is blocked by the blocking rib 44 of the housing 40 on the one side, and by the tip 51 of the seal retainer 50 on the other side. Hence, the terminal 30 is eventually fixed in a proper position.
  • the low-cost shell thus provides for properly fixing the cable 20 in the housing 40, thereby ensuring correct retention forces. Further, an undesired cable rotation inside the housing 40 is blocked, thereby ensuring a correct orientation of the terminal 30.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Claims (9)

  1. Système de connexion de câble, comprenant :
    un câble (20) présentant un manchon isolant (22) ;
    une borne (30) fixée au câble (20) ;
    une coque en plastique pouvant être fermée entourant le câble (20) et présentant des saillies intérieures (14) pour fixer la coque au manchon isolant (22) du câble (20) ;
    un boîtier (40) fixé à la coque, dans lequel la coque présente des saillies extérieures (11) qui viennent au moins partiellement en prise avec le boîtier (40) ;
    dans lequel la coque présente une collerette (12) s'étendant à partir de la coque, le boîtier (40) présente une ou plusieurs nervures de blocage (44) venant en prise avec la collerette (12) de la coque,
    caractérisé en ce que
    un dispositif de retenue de joint (50) est verrouillé au boîtier (40) en venant en prise avec un crochet (41) prévu sur le boîtier (40),
    le dispositif de retenue de joint (50) assujettit un joint (60) au boîtier (40) et
    une extrémité (51) du dispositif de retenue de joint (50) vient en prise avec la collerette (12) de la coque sur un côté opposé au côté en prise avec la nervure de blocage (44).
  2. Système selon la revendication 1, dans lequel le système est un système de connecteur non blindé et le câble (20) est exempt d'une tresse de câble.
  3. Système selon la revendication 1 ou 2, dans lequel la coque comprend deux parties de coque (10) qui sont de préférence deux demi-coques (10) égales dans leur structure, dans lequel les parties de coque (10) sont assemblées ensemble au moyen d'un système de clip.
  4. Système selon l'une quelconque des revendications précédentes, dans lequel un diamètre intérieur de la coque est inférieur à un diamètre extérieur du câble (20) au niveau d'une zone libre de la coque.
  5. Système selon l'une quelconque des revendications précédentes, dans lequel la coque écrase au moins partiellement le manchon isolant (22) du câble (20).
  6. Système selon l'une quelconque des revendications précédentes, dans lequel les saillies intérieures (14) de la coque sont des nervures intérieures (14) entourant le câble (20).
  7. Système selon l'une quelconque des revendications précédentes, dans lequel les saillies extérieures (11) sont des nervures extérieures (11).
  8. Système selon la revendication 7, dans lequel le boîtier (40) présente des évidements (43) qui reçoivent au moins partiellement les saillies extérieures (11) de la coque.
  9. Système selon la revendication 8, dans lequel les évidements (43) du boîtier (40) et les saillies extérieures (11) de la coque sont alignés au moins partiellement par complémentarité de forme.
EP18172626.6A 2018-05-16 2018-05-16 Système de connexion de câble comportant une enveloppe de fixation de câble Active EP3570387B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18172626.6A EP3570387B1 (fr) 2018-05-16 2018-05-16 Système de connexion de câble comportant une enveloppe de fixation de câble

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18172626.6A EP3570387B1 (fr) 2018-05-16 2018-05-16 Système de connexion de câble comportant une enveloppe de fixation de câble

Publications (2)

Publication Number Publication Date
EP3570387A1 EP3570387A1 (fr) 2019-11-20
EP3570387B1 true EP3570387B1 (fr) 2022-02-09

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EP18172626.6A Active EP3570387B1 (fr) 2018-05-16 2018-05-16 Système de connexion de câble comportant une enveloppe de fixation de câble

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10311473B3 (de) * 2003-03-15 2004-08-26 Harting Electric Gmbh & Co. Kg Kabelverschraubung
WO2007112771A1 (fr) * 2006-04-04 2007-10-11 Fci Ferrule de retenue pour connecteur de cable
EP3093929A1 (fr) * 2015-05-15 2016-11-16 ERICH JAEGER GmbH + Co. KG Élément de décharge de traction d'un câble et fiche dotée d'un tel élément

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