WO2008145909A1 - Underwater connection structure - Google Patents

Underwater connection structure Download PDF

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Publication number
WO2008145909A1
WO2008145909A1 PCT/FR2008/050695 FR2008050695W WO2008145909A1 WO 2008145909 A1 WO2008145909 A1 WO 2008145909A1 FR 2008050695 W FR2008050695 W FR 2008050695W WO 2008145909 A1 WO2008145909 A1 WO 2008145909A1
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WO
WIPO (PCT)
Prior art keywords
connection structure
temperature
dielectric fluid
enclosure
dynamic viscosity
Prior art date
Application number
PCT/FR2008/050695
Other languages
French (fr)
Inventor
Christian Vigne
Original Assignee
Emc3
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=38670013&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2008145909(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Emc3 filed Critical Emc3
Priority to EP08805668A priority Critical patent/EP2149177A1/en
Priority to BRPI0810689-4A2A priority patent/BRPI0810689A2/en
Publication of WO2008145909A1 publication Critical patent/WO2008145909A1/en

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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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/523—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases for use under water
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3816—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres for use under water, high pressure connectors
    • 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
    • H01R13/5216—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins

Definitions

  • the present invention relates to an underwater connection structure such as a junction box or a connector, comprising, in a sealed enclosure, electrical and / or optical elements to be connected, said enclosure being at least partially filled with a fluid dielectric.
  • junction boxes and connectors currently used for underwater applications are sealed by often redundant seal systems, and filled with a generally dielectric fluid, which allows the junction box or connector to be balanced with the external pressure thanks to a deformable membrane constituting a part of the wall of the junction box or the connector.
  • the seals may have sealing defects over time. In this case, the fluid used, which is often less dense than water, is gradually replaced by the surrounding water, which leads to a loss of electrical insulation.
  • the purpose of the present invention is to provide subaquatic connection structures of the type indicated by simplifying the sealing means to be implemented, while ensuring electrical isolation of the electrical and / or optical elements to be connected and a good seal against -vis the surrounding water.
  • the underwater connection structure according to the invention is characterized essentially by the fact that the dielectric fluid introduced into the chamber is chosen so as to be immiscible with water, insoluble in water and have a dynamic viscosity which increases strongly between a first low value, at a first temperature higher than the ambient temperature in the air at which the dielectric fluid is introduced into the chamber, and a second high dynamic viscosity value, at a second temperature, lower than said first temperature, to which the connection structure is subjected once submerged to a depth of use.
  • the dielectric fluid is preferably chosen so as to have good adhesion to the constituent materials of the electrical and optical cable sheaths, which, they can have a low adhesion (made of polytetrafluoroethylene for example). This feature prevents water that could have entered the connection structure from moving along the cable sheaths and reaching a stripped portion.
  • the dielectric fluid then constitutes a highly viscous gelled mass sealingly coating the electrical and / or optical elements inside the enclosure.
  • the first dynamic viscosity value is a few tens of mm 2 / s, in particular of the order of 30 mm 2 / s and the second dynamic viscosity value is several thousand mm 2 / s, particularly more of 15000 mm 2 / s.
  • the first temperature is greater than 30 ° C. and preferably of the order of 55 ° C.
  • the second temperature is less than 25 ° C., in particular of the order of 20 ° C.
  • At least one wall of the enclosure is formed of a flexible membrane and waterproof, for example Nitrile rubber or silicone.
  • dielectric fluids that can be used according to the invention, mention may be made of the Casing Filler E-800-HB product marketed by Hydro Safe Oil Company, Inc., and the Union Gard 160 product marketed by Union Gard. , division of Dome Services LLC.
  • FIG. 1 schematically illustrates an underwater connection structure in the form of a junction box
  • Figure 2 schematically illustrates an underwater connection structure in the form of a connector.
  • the underwater junction box illustrated in Figure 1, comprises a sealed enclosure generally designated 1 and a part of the wall is constituted by a flexible flexible membrane 2. There are illustrated three electrical cables 3 and / or optical whose electrical conductors or optical fibers 4 are exposed for their connection to the inside of the junction box.
  • FIG. 1 also shows two filling orifices 5 sealingly closed and through which a dielectric fluid 6 filling the enclosure is introduced, which may for example be the Casing Filler E-800-HB mentioned previously introduced in FIG. surface at a temperature substantially greater than the atmospheric temperature, for example of the order of 55 ° C. It is understood that because of the presence of the dielectric fluid 6 which constitutes a highly viscous mass at the depth of use, a complete coating of the exposed parts of the cables is carried out inside the junction box, this mass constituting a barrier effective sealing, even in case of rupture of the outer wall of the enclosure or permeation of water through this wall.
  • a dielectric fluid 6 filling the enclosure
  • the Casing Filler E-800-HB mentioned previously introduced in FIG. surface at a temperature substantially greater than the atmospheric temperature, for example of the order of 55 ° C.
  • FIG. 2 shows a cable 3 'whose exposed electrical conductors and / or optical fibers 4' are surrounded by the dielectric fluid 6 '.
  • FIG. 2 also shows, at the ends of the conductors and / or optical fibers 4 ', contacts 7' and connectors 8 '.

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The invention relates to an underwater connection structure, in particular a junction or connector box including, in a sealed housing (1), electric and/or optical members to be connected (4), said housing being partially filled with a dielectric fluid, characterised in that the dielectric fluid (6) inserted in the housing (21) is selected so as to be non-miscible with water, insoluble in water and having a dynamic viscosity strongly increasing from a first low value at a first temperature higher than the room temperature of air at which the dielectric fluid is inserted into the housing, and a second high dynamic viscosity value at a second temperature lower than the first temperature to which the connection structure is submitted once immerged at an operational depth.

Description

Structure de connexion subaquatique Underwater connection structure
La présente invention est relative à une structure de connexion subaquatique telle qu'une boîte de jonction ou un connecteur, comportant, dans une enceinte étanche, des éléments électriques et/ou optiques à raccorder, ladite enceinte étant au moins partiellement remplie d'un fluide diélectrique.The present invention relates to an underwater connection structure such as a junction box or a connector, comprising, in a sealed enclosure, electrical and / or optical elements to be connected, said enclosure being at least partially filled with a fluid dielectric.
Les boîtes de jonction et les connecteurs utilisés actuellement pour des applications subaquatiques sont rendus étanches par des systèmes de joints, souvent redondants, et remplis d'un fluide, en général diélectrique, qui permet de mettre la boîte de jonction ou le connecteur en équilibre avec la pression extérieure grâce à une membrane déformable constituant une partie de la paroi de la boîte de jonction ou du connecteur. Les joints peuvent présenter des défauts d'étanchéité au cours du temps. Dans ce cas, le fluide utilisé, qui est souvent moins dense que l'eau, est peu à peu remplacé par l'eau environnante, ce qui conduit à une perte d'isolement électrique.The junction boxes and connectors currently used for underwater applications are sealed by often redundant seal systems, and filled with a generally dielectric fluid, which allows the junction box or connector to be balanced with the external pressure thanks to a deformable membrane constituting a part of the wall of the junction box or the connector. The seals may have sealing defects over time. In this case, the fluid used, which is often less dense than water, is gradually replaced by the surrounding water, which leads to a loss of electrical insulation.
La présente invention a pour but de réaliser des structures de connexion subaquatiques du type indiqué en simplifiant les moyens d'étanchéité à mettre en œuvre, tout en assurant un isolement électrique des éléments électriques et/ou optiques à raccorder et une bonne étanchéité vis-à-vis de l'eau environnante.The purpose of the present invention is to provide subaquatic connection structures of the type indicated by simplifying the sealing means to be implemented, while ensuring electrical isolation of the electrical and / or optical elements to be connected and a good seal against -vis the surrounding water.
La structure de connexion subaquatique selon l'invention se caractérise essentiellement par le fait que le fluide diélectrique introduit dans l'enceinte est choisi de façon à être non miscible à l'eau, insoluble dans l'eau et présenter une viscosité dynamique augmentant fortement entre une première valeur faible, à une première température supérieure à la température ambiante dans l'air à laquelle le fluide diélectrique est introduit dans l'enceinte, et une seconde valeur de viscosité dynamique élevée, à une seconde température, inférieure à ladite première température, à laquelle est soumise la structure de connexion une fois immergée à une profondeur d'utilisation.The underwater connection structure according to the invention is characterized essentially by the fact that the dielectric fluid introduced into the chamber is chosen so as to be immiscible with water, insoluble in water and have a dynamic viscosity which increases strongly between a first low value, at a first temperature higher than the ambient temperature in the air at which the dielectric fluid is introduced into the chamber, and a second high dynamic viscosity value, at a second temperature, lower than said first temperature, to which the connection structure is subjected once submerged to a depth of use.
Le fluide diélectrique est de préférence choisi de façon à présenter une bonne adhérence aux matériaux constitutifs des gaines des câbles électriques et optiques qui, elles, peuvent présenter une faible adhésion (réalisées en polytetrafluoroéthylène par exemple). Cette caractéristique empêche l'eau qui aurait pu pénétrer dans la structure de connexion de se déplacer le long des gaines des câbles et atteindre une partie dénudée. Le fluide diélectrique constitue alors une masse gélifiée fortement visqueuse enrobant de manière étanche les éléments électriques et/ou optiques à l'intérieur de l'enceinte.The dielectric fluid is preferably chosen so as to have good adhesion to the constituent materials of the electrical and optical cable sheaths, which, they can have a low adhesion (made of polytetrafluoroethylene for example). This feature prevents water that could have entered the connection structure from moving along the cable sheaths and reaching a stripped portion. The dielectric fluid then constitutes a highly viscous gelled mass sealingly coating the electrical and / or optical elements inside the enclosure.
De préférence, la première valeur de viscosité dynamique est de quelques dizaines de mm2/s, notamment de l'ordre de 30 mm2/s et la seconde valeur de viscosité dynamique est de plusieurs milliers de mm2/s, notamment de plus de 15000 mm2/s.Preferably, the first dynamic viscosity value is a few tens of mm 2 / s, in particular of the order of 30 mm 2 / s and the second dynamic viscosity value is several thousand mm 2 / s, particularly more of 15000 mm 2 / s.
La première température est supérieure à 300C et de préférence de l'ordre de 55°C, et la seconde température est inférieure à 25°C, notamment de l'ordre de 200C.The first temperature is greater than 30 ° C. and preferably of the order of 55 ° C., and the second temperature is less than 25 ° C., in particular of the order of 20 ° C.
Dans un mode de réalisation avantageux de l'invention, au moins une paroi de l'enceinte est formée d'une membrane flexible et étanche à l'eau, par exemple en caoutchouc Nitrile ou en Silicone.In an advantageous embodiment of the invention, at least one wall of the enclosure is formed of a flexible membrane and waterproof, for example Nitrile rubber or silicone.
A titre d'exemple de fluides diélectriques utilisables selon l'invention, on peut citer le produit Casing Filler E-800-HB commercialisé par la Société Hydro Safe OiI Company, Inc., et le produit Union Gard 160 commercialisé par la Société Union Gard, division de Dôme Services LLC.As an example of dielectric fluids that can be used according to the invention, mention may be made of the Casing Filler E-800-HB product marketed by Hydro Safe Oil Company, Inc., and the Union Gard 160 product marketed by Union Gard. , division of Dome Services LLC.
Dans le but de mieux faire comprendre l'invention, on va maintenant en décrire deux exemples de réalisation en se référant au dessin annexé dans lequel : la figure 1 illustre schématiquement une structure de connexion subaquatique sous la forme d'une boîte de jonction, - la figure 2 illustre schématiquement une structure de connexion subaquatique sous la forme d'un connecteur.In order to better understand the invention, two embodiments will now be described with reference to the appended drawing in which: FIG. 1 schematically illustrates an underwater connection structure in the form of a junction box; Figure 2 schematically illustrates an underwater connection structure in the form of a connector.
La boîte de jonction subaquatique selon l'invention, illustrée dans la figure 1, comporte une enceinte étanche désignée globalement par 1 et dont une partie de la paroi est constituée par une membrane flexible étanche 2. On a illustré trois câbles 3 électriques et/ou optiques dont les conducteurs électriques ou les fibres optiques 4 sont exposés pour leur raccordement à l'intérieur de la boîte de jonction.The underwater junction box according to the invention, illustrated in Figure 1, comprises a sealed enclosure generally designated 1 and a part of the wall is constituted by a flexible flexible membrane 2. There are illustrated three electrical cables 3 and / or optical whose electrical conductors or optical fibers 4 are exposed for their connection to the inside of the junction box.
On a également illustré sur la figure 1, 2 orifices de remplissage 5 obturables de manière étanche et au travers desquels est introduit un fluide diélectrique 6 remplissant l'enceinte et qui peut par exemple être le Casing Filler E-800-HB mentionné précédemment introduit en surface à une température sensiblement supérieure à la température atmosphérique, par exemple de l'ordre de 55°C. On comprend que du fait de la présence du fluide diélectrique 6 qui constitue une masse fortement visqueuse à la profondeur d'utilisation, un enrobage complet des parties exposées des câbles est réalisé à l'intérieur de la boîte de jonction, cette masse constituant une barrière d'étanchéité efficace, même en cas de rupture de la paroi extérieure de l'enceinte ou de perméation d'eau à travers cette paroi.FIG. 1 also shows two filling orifices 5 sealingly closed and through which a dielectric fluid 6 filling the enclosure is introduced, which may for example be the Casing Filler E-800-HB mentioned previously introduced in FIG. surface at a temperature substantially greater than the atmospheric temperature, for example of the order of 55 ° C. It is understood that because of the presence of the dielectric fluid 6 which constitutes a highly viscous mass at the depth of use, a complete coating of the exposed parts of the cables is carried out inside the junction box, this mass constituting a barrier effective sealing, even in case of rupture of the outer wall of the enclosure or permeation of water through this wall.
On a illustré très schématiquement également sur la figure 2, un connecteur subaquatique selon l'invention.There is illustrated very schematically also in Figure 2, an underwater connector according to the invention.
Il comprend une enceinte étanche 1 ' dont une partie de la paroi est constituée par une membrane flexible et étanche 2'. On voit sur la figure 2 un câble 3' dont les conducteurs électriques et/ou fibres optiques exposés 4' sont entourés par le fluide diélectrique 6'. On a également schématisé sur la figure 2, aux extrémités des conducteurs et/ou fibres optiques 4', des contacts 7' et une connectique 8'.It comprises a sealed enclosure 1 ', a portion of the wall is constituted by a flexible and waterproof membrane 2'. FIG. 2 shows a cable 3 'whose exposed electrical conductors and / or optical fibers 4' are surrounded by the dielectric fluid 6 '. FIG. 2 also shows, at the ends of the conductors and / or optical fibers 4 ', contacts 7' and connectors 8 '.
Bien que l'invention ait été décrite en liaison avec des modes de réalisation particuliers, il est bien évident qu'elle n'y est nullement limitée et qu'on peut lui apporter diverses modifications sans sortir ni de son cadre ni de son esprit. Although the invention has been described in connection with particular embodiments, it is obvious that it is not limited thereto and that it can be made various modifications without departing from its scope or its spirit.

Claims

REVENDICATIONS
1. Structure de connexion subaquatique, notamment boîte de jonction ou connecteur comportant, dans une enceinte étanche (1, l') des éléments électriques et/ou optiques à raccorder (4, 4'), ladite enceinte étant au moins partiellement remplie d'un fluide diélectrique, caractérisée par le fait que le fluide diélectrique (6, 6') introduit dans l'enceinte (1, 1 ') est choisi de façon à être non miscible à l'eau, insoluble dans l'eau et présenter une viscosité dynamique augmentant fortement entre une première valeur faible, à une première température supérieure à la température ambiante dans l'air à laquelle le fluide diélectrique est introduit dans l'enceinte, et une seconde valeur de viscosité dynamique élevée, à une seconde température, inférieure à ladite première température, à laquelle est soumise la structure de connexion une fois immergée à une profondeur d'utilisation.1. Underwater connection structure, in particular a junction box or connector comprising, in a sealed enclosure (1, 1 '), electrical and / or optical elements to be connected (4, 4'), said enclosure being at least partially filled with a dielectric fluid, characterized in that the dielectric fluid (6, 6 ') introduced into the enclosure (1, 1') is chosen so as to be immiscible with water, insoluble in water and have a high dynamic viscosity greatly increasing between a first low value, at a first temperature higher than the ambient temperature in the air at which the dielectric fluid is introduced into the chamber, and a second high dynamic viscosity value, at a second temperature, lower at said first temperature, to which the connection structure is subjected once submerged at a depth of use.
2. Structure de connexion subaquatique selon la revendication 1, caractérisée par le fait que la première valeur de viscosité dynamique est de quelques dizaines de mm2/s, notamment de l'ordre de 30 mm2/s, et la seconde valeur de viscosité dynamique est de plusieurs milliers de mm2/s, notamment de plus de 15000 mm2/s.2. Underwater connection structure according to claim 1, characterized in that the first dynamic viscosity value is a few tens of mm 2 / s, in particular of the order of 30 mm 2 / s, and the second value of viscosity The dynamic range is several thousand mm 2 / s, in particular more than 15000 mm 2 / s.
3. Structure de connexion subaquatique selon l'une quelconque des revendications 1 et 2, caractérisée par le fait que la première température est supérieure à 300C, et de préférence de l'ordre de 55°C, et la seconde température est inférieure à 25°C, notamment de l'ordre de 200C.3. Underwater connection structure according to any one of claims 1 and 2, characterized in that the first temperature is greater than 30 0 C, and preferably of the order of 55 ° C, and the second temperature is lower at 25 ° C, in particular of the order of 20 ° C.
4. Structure de connexion subaquatique selon l'une quelconque des revendications précédentes, caractérisée par le fait qu'au moins une paroi de l'enceinte est formée d'une membrane flexible étanche à l'eau (2, 2'). 4. Underwater connection structure according to any one of the preceding claims, characterized in that at least one wall of the enclosure is formed of a flexible waterproof membrane (2, 2 ').
PCT/FR2008/050695 2007-04-24 2008-04-18 Underwater connection structure WO2008145909A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08805668A EP2149177A1 (en) 2007-04-24 2008-04-18 Underwater connection structure
BRPI0810689-4A2A BRPI0810689A2 (en) 2007-04-24 2008-04-18 UNDERWATER CONNECTION STRUCTURE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0754674 2007-04-24
FR0754674A FR2915629B1 (en) 2007-04-24 2007-04-24 SUBAQUATIC CONNECTION STRUCTURE

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WO2008145909A1 true WO2008145909A1 (en) 2008-12-04

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ID=38670013

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PCT/FR2008/050695 WO2008145909A1 (en) 2007-04-24 2008-04-18 Underwater connection structure

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EP (1) EP2149177A1 (en)
BR (1) BRPI0810689A2 (en)
FR (1) FR2915629B1 (en)
WO (1) WO2008145909A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITNA20080070A1 (en) * 2008-12-23 2010-06-24 Westend S R L JOINT FOR UNDERWATER ELECTRICAL CONNECTIONS.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2277448A1 (en) * 1974-07-05 1976-01-30 Int Standard Electric Corp ELECTRICAL CONNECTOR FOR USE IN AQUEOUS ENVIRONMENT
FR2302575A1 (en) * 1975-02-28 1976-09-24 Itt SEMI-FLUID INSULATING LIQUID
US4050766A (en) * 1976-04-09 1977-09-27 Canada, Her Majesty The Queen In Right Of, As Represented By The Minister Of National Defence Corrosion-proof electrical connector assembly
FR2353969A1 (en) * 1976-06-04 1977-12-30 Cables De Lyon Geoffroy Delore Grease packed connector for undersea coaxial cables - to inhibit water penetration under pressure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2277448A1 (en) * 1974-07-05 1976-01-30 Int Standard Electric Corp ELECTRICAL CONNECTOR FOR USE IN AQUEOUS ENVIRONMENT
FR2302575A1 (en) * 1975-02-28 1976-09-24 Itt SEMI-FLUID INSULATING LIQUID
US4050766A (en) * 1976-04-09 1977-09-27 Canada, Her Majesty The Queen In Right Of, As Represented By The Minister Of National Defence Corrosion-proof electrical connector assembly
FR2353969A1 (en) * 1976-06-04 1977-12-30 Cables De Lyon Geoffroy Delore Grease packed connector for undersea coaxial cables - to inhibit water penetration under pressure

Also Published As

Publication number Publication date
FR2915629B1 (en) 2012-10-05
FR2915629A1 (en) 2008-10-31
BRPI0810689A2 (en) 2014-10-21
EP2149177A1 (en) 2010-02-03

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