EP3949028B1 - Verbindung zwischen einem verstärkten kabelbaum und einem elektrischen bauteil - Google Patents

Verbindung zwischen einem verstärkten kabelbaum und einem elektrischen bauteil Download PDF

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Publication number
EP3949028B1
EP3949028B1 EP20712388.6A EP20712388A EP3949028B1 EP 3949028 B1 EP3949028 B1 EP 3949028B1 EP 20712388 A EP20712388 A EP 20712388A EP 3949028 B1 EP3949028 B1 EP 3949028B1
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EP
European Patent Office
Prior art keywords
harness
over
reinforcement
connector
connection
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
EP20712388.6A
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English (en)
French (fr)
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EP3949028A1 (de
Inventor
Samuel CORNETEAU
Jean-Marc MOUNOLOU
Cyril VASQUEZ
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.)
Safran Helicopter Engines SAS
Original Assignee
Safran Helicopter Engines SAS
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Publication date
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Publication of EP3949028A1 publication Critical patent/EP3949028A1/de
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Publication of EP3949028B1 publication Critical patent/EP3949028B1/de
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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
    • 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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/6592—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable
    • 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
    • H01R13/516—Means for holding or embracing insulating body, e.g. casing, hoods
    • 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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/6608—Structural association with built-in electrical component with built-in single component

Definitions

  • the present invention relates to the field of electrical connections with electromagnetic protection. More specifically, the present invention relates to a connection between an over-shielded harness and an electrical component, in particular a connector with an integrated connection, as well as a method for connecting an over-shielded harness to an electrical component, in particular a connector with an integrated connection.
  • electrical connections are mainly made using electrical harnesses.
  • These electrical harnesses typically include additional shielding surrounding the cable strand for electromagnetic (EM) protection, in particular to mitigate EM disturbances received or emitted by the harness.
  • EM electromagnetic
  • a rear connection (or “backshells” in English) is often used.
  • the rear connector allows electrical connection of the harness to the connector while maintaining EM protection around the connection. More precisely, the rear connection is a metal part, of tubular shape generally flared towards the front.
  • the harness cables intended to be plugged into the connector pass inside the rear connector via a rearward passage, while the harness overshield is attached around a connection pad surrounding the passage. Once the cables are plugged in, the rear connector is connected to the front of the connector.
  • Various forms of rear connectors exist allowing overshielded harnesses of different diameters to be reliably connected to connectors, even those of small diameter.
  • a connector with an integral fitting is sometimes preferred because it is lighter. Furthermore, it is also less complicated to install because it includes one less component, effectively integrating the functions of the connector and the rear connector into one. single piece.
  • a small diameter harness cannot be properly connected to such a connector.
  • the passage at the rear of the integral connector should be wide enough to allow insertion as well as plugging of the cables to the connector part of the integrated connector, and therefore the range of the integral connector does not cannot be reduced beyond a certain diameter. Therefore, it is difficult to reattach the overarmor of a small diameter harness around this range.
  • the overshielding of the small diameter harness is often attached so as to only partially surround the area of the connector with integrated fitting, or is not attached at all.
  • the overshield is forced to surround the pad, which distorts the harness overshield mesh and leaves windows through which EM disturbances can be received or emitted. In any case, EM protection represents a significant regression and is not satisfactory.
  • WO 2011 /076819A2 is the prior art closest to the invention and discloses a cable joint for a motor vehicle electrical system, which comprises a clamping device which includes internal clamping sections securing a common shield to the sides of shield braids .
  • the object of the present invention is therefore to remedy the aforementioned needs and drawbacks by proposing an enlarged over-armor harness comprising an over-armored harness, a non-deformable ferrule and an over-armor section which is distinct and has a larger diameter than the over-armor of the harness, the non-deformable ferrule being arranged around the harness with the over-shielding of the harness passing inside the non-deformable ferrule and folded over the exterior of the non-deformable ferrule, a first end of the over-shielding section being attached around the folded part of the overshielding of the harness and a second end being arranged for attachment to a range of an electrical component.
  • the first end of the over-shielding section is attached with a clamp.
  • a first heat-shrinkable sheath envelops the first end of the overshielding section.
  • the object of the present invention also provides a connection, comprising an electrical component with a pad and an enlarged shielding harness as described above, the second end of the shielding section being attached around the pad of the electrical component.
  • the second end of the over-shielding section is attached with a clamp.
  • the electrical component is a connector with an integrated connection.
  • a second heat-shrinkable sheath envelops the first end of the over-shielding section as well as a part of the first heat-shrinkable sheath, and further envelops the second end of the over-shielding section.
  • the object of the present invention also proposes a method for connecting the over-shielding of an over-armored harness to a range of an electrical component, the method comprising the provision of a non-deformable ferrule around the over-armored harness, the folding of the over-shielding of the harness from the inside of the non-deformable ferrule to the outside of the non-deformable ferrule, the provision of an over-shielding section which is distinct and has a larger diameter than the over-shielding of the harness, the attachment of one end of the over-shielding section around the folded part of the harness over-shielding, and the connection of the second end of the over-shielding section to the area of the electrical component.
  • the method comprises attaching each of the ends of the over-shielding section with a clamp.
  • the method comprises attaching the overshielding of the harness to the area of a connector with an integrated connector.
  • connection 100 represents a connection 100 between an integrated connector 50 and an overshielded harness 10 according to a preferred embodiment of the invention.
  • connection 100 shows the same connection 100 at various assembly stages to facilitate understanding of the invention.
  • the harness 10 is of a known type and comprises cables 15 which are grouped into a strand, the latter being surrounded by an overshielding 20 (of the braided type) to protect it from electromagnetic disturbances (EM).
  • the harness 10 also includes individual shielded cables.
  • the cables 15 and the harness 10 include layers of insulation. To connect this harness with a built-in connector, it must be prepared.
  • the harness 10 is stripped and deshielded towards one end, which consists of locally removing the external insulation 12 and the overshielding 20 of the harness 10. Then, the shielded cables 15 of the harness are stripped at an even closer location towards the end in order to then expose the conductive part of the cables 15.
  • the shielded cables 15 can also be deshielded, but keeping their terminations of the shields 16 attached to the harness 10.
  • the connector with integrated connector 50 is of substantially cylindrical shape with a rearward metal sleeve 54 comprising a passage 53 giving access to its interior where the cables 15 of the overshielded harness 10 can be plugged into the connector with integrated connector 50.
  • exterior of the sleeve has an external connection area 55. This area 55 is intended for the attachment of the over-shielding 20 of the over-shielding harness 10 as well as for the recovery of shielding terminations 16 of the individual cables 15, if necessary.
  • the 50 integrated fitting connector is lighter and less complicated to install.
  • cables 15 of the harness 10 are received in the passage 53 of the integrated connector 50.
  • the conductive parts of the cables 15 are plugged into the integrated connector 50 to electrically connect the cables 15 and the integrated connector 50.
  • the harness 10 is small compared to this connector with integrated fitting 50. More precisely, the diameter of its overshielding 20 is too small to surround the area 55 of the connector with integrated fitting 50 which has a larger diameter.
  • the over-shielding 20 is made of metal, and cannot extend sufficiently, either materially or structurally, to adapt to the diameter of the pad 55.
  • the diameter of the pad 55 can be between 12 and 15mm, while that of overshielding 20 can be between 5 and 6mm.
  • the overshielding of the harness is widened.
  • This over-shielded harness with its enlarged over-shielding called “enlarged over-armoring harness”, makes it possible to connect to the integrated connector 50.
  • the enlarged armor harness 30 comprises a non-deformable ferrule 46.
  • the non-deformable ferrule 46 is in the form of a short circular tube. It is of a size which allows its installation around the armored harness 10, being slightly wider than the diameter of the armoring 20 of the harness 10. It is installed at a position just behind the end of the armoring 20 of the harness 10.
  • the armoring 20 however, which now passes inside the non-deformable ferrule 46, is folded over the exterior of the non-deformable ferrule 46 to form a folded part 22, its end ending behind the non-deformable ferrule 46 as shown.
  • An over-shielding section 40 is provided to adapt the over-shielding 20 of the over-armored harness 10 to the range 55. It is distinct and does not form an integral part of the over-shielding 20 of the over-armored harness 10.
  • the over-shielding section 40 has a larger diameter than the over-shielding 20 of the harness 10. In particular, it is wide enough to surround the over-shielding 20 of the harness 10 folded over the non-deformable ferrule 46. At the same time, the other end of the over-shielding section 41 is capable of surrounding the area 55 of the connector with integrated connection 50, without being deformed.
  • the over-shielding section 40 is typically straight. Alternatively, it can be made in a flared manner, which can facilitate adaptation to the smallest diameter of the harness 10, and the largest diameter of the connector with integrated fitting 50. Furthermore, its mesh and its material can be identical to those of the overshielding 20 of the harness 10 in order to ensure good electrical continuity and good EM protection. However, we understand that even these can also be different depending on the needs.
  • a first end 41 of the over-shielding section 40 is positioned around the folded part 22 on the ferrule. It is attached to it with a clamp 48.
  • the non-deformable ferrule 46 is important. It prevents the over-shielding 20 of the harness 10 from being crushed due to the tightening of the clamp 48. As the over-shielding 20 is not deformed, the mesh is respected, and uniform protection is guaranteed around the over-armored harness 10. By elsewhere, it allows the clamp 48 to tighten the section of over-shielding 40 tightly against the folded part 22 of the over-shielding 20 thus ensuring a reliable electrical connection between the two.
  • it is made of metal, for example copper.
  • the second end 42 of the overshielding section 40 is positioned around the connection area 55 of the connector with integrated connection 50. It is attached there with another clamp 58.
  • the shielding terminations 16 of the shielded cables 15 are also included on the same range 55, inside the second end 42 of the over-shielding section 40.
  • the two clamps 48, 58 on the connection 100 can be of the same size, or of different sizes . Preferably, they are made of metal.
  • the over-shielded harness 10 as well as the connector with integrated fitting 50 are known parts. Furthermore, the non-deformable ferrule 46, the over-shielding section 40 and the clamps 48, 58 are also easily available standard parts.
  • the over-shielded harness 10 can also include a self-welding sleeve 17 linked to the shielding of a cable 15.
  • the self-welding sleeve can also include a shielding termination 18 which can also be connected to the pad 55, as terminations of the shields 16 of the cables 15, inside the section of overshielding 40.
  • the self-welding sleeve 17 can advantageously be linked to the wiring behind the connection 100.
  • a first heat-shrinkable sheath 35 is provided around the harness 10, in particular enveloping the first end 41 of the over-shielding section 40.
  • a second sheath 36 is provided enveloping the first end 41 of the over-shielding section overshielding 40 as well as part of the first heat-shrinkable sheath 35 above.
  • This second heat-shrinkable sheath 36 extends beyond the second end 41 of the overshielding section 40, and is engaged with a shoulder 56 on the connector with integrated connection 50. It therefore envelops all the conductive parts of the connection 100.
  • the heat-shrinkable sleeves 35, 36 protect the connection 100 from water percolation and impacts. Furthermore, they hide the parts of the connection 100 well and make them cleaner.
  • the electrical connection 100 when complete is approximately the same size as that using a rear fitting and connector put together. So this has no impact on cable/harness routing in its vicinity.
  • the over-armored harness 10 is first prepared, de-shielded and stripped as necessary.
  • a non-deformable ferrule 46 is placed around the over-armored harness 10. Then, the over-shielding 20 of the harness 10 is folded over the exterior of the non-deformable ferrule 46.
  • An over-shielding section 40 which is distinct and has a larger diameter than the over-shielding of the harness 20, is placed with a first end 41 around the folded part 22 of the over-shielding 20 of the harness 10. The over-shielding section 40 is then there attached with a clamp 48. The over-shielding 20 of the harness 10 is now widened, effectively forming an enlarged over-shielding harness 30. The second end 42 of the over-shielding section 40 is placed around the area 55 of the connector with integrated fitting, and is then attached to it with another clamp 58.
  • the over-shielding section 40 extends from the overshielding 20 of the harness 10 to the range 55 of the integrated connector 50, and maintains good EM protection which is uniform and continuous around the connection 100.
  • the protection provided by the over-shielding section 40 around the cables 15 is at least that provided by the over-shielding 20 of the over-shielded harness 10.
  • the connection 100 between the over-shielded harness 10 and the connector with integrated connection 50 weighs less than a connection comprising a rear fitting and a connector put together.
  • the invention has been explained in relation to a connector with an integrated fitting, it is nevertheless understood that the invention can be applied to other components, such as a standard rear fitting, and even those having a range which does not It's not too wide for the harness.
  • the invention can be used with various armored harnesses, whether braided or other.
  • the invention can also be easily retro-adapted to connections already existing in an aircraft.
  • the invention is not limited to aircraft, and can be used in ships, buildings, etc.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Claims (10)

  1. Verbreiterter Verstärkungskabelbaum (30), der einen verstärkten Kabelbaum (10), eine nicht verformbare Ferrule (46) und einen Verstärkungsabschnitt (40) umfasst, der sich von der Verstärkung (20) des Kabelbaums (10) unterscheidet und einen größeren Durchmesser als diese aufweist, wobei die nicht verformbare Ferrule (46) um den Kabelbaum (10) herum angeordnet ist, wobei die Verstärkung (20) des Kabelbaums (10) im Inneren der nicht verformbaren Ferrule (46) verläuft und auf der Außenseite der nicht verformbaren Ferrule (46) gefaltet ist, wobei ein erstes Ende (41) des Verstärkungsabschnitts (40) um den gefalteten Teil (22) der Verstärkung (20) des Kabelbaums (10) befestigt wird und ein zweites Ende (42) so angeordnet ist, dass es an einem Bereich (55) einer elektrischen Komponente (50) befestigt ist.
  2. Verbreiterter Verstärkungskabelbaum (30) nach Anspruch 1, wobei das erste Ende (41) des Verstärkungsabschnitts (40) mit einer Klemmschelle (48) befestigt ist.
  3. Verbreiterter Verstärkungskabelbaum (30) nach Anspruch 1 oder 2, wobei eine erste wärmeschrumpfbare Hülle (35) das erste Ende (41) des Verstärkungsabschnitts (40) umhüllt.
  4. Verbindung (100), die eine elektrische Komponente (50) mit einem Bereich (55) und einem verbreiterten Verstärkungskabelbaum (30) nach einem der Ansprüche 1 bis 3 umfasst, wobei das zweite Ende (42) des Verstärkungsabschnitts (40) um den Bereich (55) der elektrischen Komponente (50) herum befestigt ist.
  5. Verbindung (100) nach Anspruch 4, wobei das zweite Ende (42) des Verstärkungsabschnitts (40) mit einer Klemmschelle (58) befestigt ist.
  6. Verbindung (100) nach Anspruch 5, wobei die elektrische Komponente (50) ein integrierter Kopplungsstecker ist.
  7. Verbindung (100) nach einem der Ansprüche 4 bis 6, wobei eine zweite wärmeschrumpfbare Hülle (36) das erste Ende (41) des Verstärkungsabschnitts (40) sowie einen Teil der ersten wärmeschrumpfbaren Hülle (35) umhüllt und außerdem das zweite Ende (42) des Verstärkungsabschnitts (40) umhüllt.
  8. Verfahren zum Koppeln der Verstärkung (20) eines verstärkten Kabelbaums (10) mit einem Bereich (55) einer elektrischen Komponente (50), wobei das Verfahren das Bereitstellen einer nicht verformbaren Ferrule (46) um den verstärkten Kabelbaum (10) herum, das Falten der Verstärkung (20) des Kabelbaums (10) vom Inneren der nicht verformbaren Ferrule (46) auf die Außenseite der nicht verformbaren Ferrule (46), das Bereitstellen eines Verstärkungsabschnitts (40), der sich von der Kabelbaumverstärkung (20) unterscheidet und einen größeren Durchmesser als diese aufweist, das Befestigen eines Endes (41) des Verstärkungsabschnitts (40) um den gefalteten Teil (22) der Verstärkung (20) des Kabelbaums (10) und das Befestigen des zweiten Endes (42) des Verstärkungsabschnitts (40) am Bereich (55) der elektrischen Komponente (50) umfasst.
  9. Verfahren nach Anspruch 8, wobei das Verfahren das Befestigen jedes der Enden (41, 42) des Verstärkungsabschnitts (40) mit einer Klemmschelle (48, 58) umfasst.
  10. Verfahren nach Anspruch 8 oder 9, wobei das Verfahren das Befestigen der Verstärkung (20) des Kabelbaums am Bereich (55) eines integrierten Kopplungssteckers (50) umfasst.
EP20712388.6A 2019-04-05 2020-03-25 Verbindung zwischen einem verstärkten kabelbaum und einem elektrischen bauteil Active EP3949028B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1903680A FR3094844B1 (fr) 2019-04-05 2019-04-05 Connexion entre un harnais surblindé et un composant electrique
PCT/EP2020/058401 WO2020200970A1 (fr) 2019-04-05 2020-03-25 Connexion entre un harnais surblindé et un composant electrique

Publications (2)

Publication Number Publication Date
EP3949028A1 EP3949028A1 (de) 2022-02-09
EP3949028B1 true EP3949028B1 (de) 2024-04-24

Family

ID=67742654

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20712388.6A Active EP3949028B1 (de) 2019-04-05 2020-03-25 Verbindung zwischen einem verstärkten kabelbaum und einem elektrischen bauteil

Country Status (5)

Country Link
US (1) US11817650B2 (de)
EP (1) EP3949028B1 (de)
CA (1) CA3135078A1 (de)
FR (1) FR3094844B1 (de)
WO (1) WO2020200970A1 (de)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3280246A (en) * 1965-02-02 1966-10-18 Thomas & Betts Corp Ground sheath connector
GB8405556D0 (en) * 1984-03-02 1984-04-04 Francais Isolants Strain relief device
GB9111633D0 (en) * 1991-05-30 1991-07-24 Raychem Ltd Dimensionally-recoverable article
FR2694990A1 (fr) * 1992-07-31 1994-02-25 Transrack Sa Dispositif de passage de câble avec protection électromagnétique.
US6419519B1 (en) * 2000-08-01 2002-07-16 Glenair Inc. Strain relief for electrical connectors
US7029315B2 (en) * 2004-01-23 2006-04-18 Carlyle, Inc. Electrical connector assembly with reconfigurable strain relief
US7837495B2 (en) * 2007-10-24 2010-11-23 Amphenol Corporation Strain relief backshell assembly
FR2929049B1 (fr) * 2008-03-19 2010-03-12 Labinal Procede de reprise du blindage electromagnetique individuel de cables electriques d'un toron sur un connecteur electrique.
US9017110B2 (en) * 2009-12-24 2015-04-28 Delphi International Operations Luxembourg S.A.R.L. Cable junction
US20170085026A1 (en) * 2015-09-21 2017-03-23 Amphenol Corporation High power electrical connector with strain relief

Also Published As

Publication number Publication date
CA3135078A1 (fr) 2020-10-08
FR3094844B1 (fr) 2021-09-03
EP3949028A1 (de) 2022-02-09
FR3094844A1 (fr) 2020-10-09
US11817650B2 (en) 2023-11-14
US20220200197A1 (en) 2022-06-23
WO2020200970A1 (fr) 2020-10-08

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