FR2683379A1 - Sealed electrical connector - Google Patents

Sealed electrical connector Download PDF

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Publication number
FR2683379A1
FR2683379A1 FR9114021A FR9114021A FR2683379A1 FR 2683379 A1 FR2683379 A1 FR 2683379A1 FR 9114021 A FR9114021 A FR 9114021A FR 9114021 A FR9114021 A FR 9114021A FR 2683379 A1 FR2683379 A1 FR 2683379A1
Authority
FR
France
Prior art keywords
sheath
cables
seal
general
heat
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.)
Granted
Application number
FR9114021A
Other languages
French (fr)
Other versions
FR2683379B1 (en
Inventor
Vinard Pierre
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.)
Thales Avionics SAS
Original Assignee
Thales Avionics SAS
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 Thales Avionics SAS filed Critical Thales Avionics SAS
Priority to FR9114021A priority Critical patent/FR2683379A1/en
Publication of FR2683379A1 publication Critical patent/FR2683379A1/en
Application granted granted Critical
Publication of FR2683379B1 publication Critical patent/FR2683379B1/fr
Granted legal-status Critical Current

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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
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/70—Insulation of connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/70—Insulation of connections
    • H01R4/72—Insulation of connections using a heat shrinking insulating sleeve

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  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The present invention relates to a sealed electrical connector comprising individually sheathed cables (15) connected to contacts (13) and an encapsulation product (19) embedding the contacts, the cables and an outermost portion of a general sheath (17) surrounding the cables. A heat-shrinkable sleeve (21) is shrunk around the outermost portion of the general sheath (17) and an annular flexible seal (23) is placed between the heat-shrinkable sleeve and the general sheath.

Description

RACCORD ELECTRIOUE ETANCHE
La présente invention concerne les raccords étanches d'un câble électrique multiconducteurs à des plots conducteurs et en particulier de tels raccords où les plots, les conducteurs et une gaine isolante entourant les conducteurs sont noyés dans un produit d'encapsulation destiné à empêcher que de l'humidité ou une atmosphère corrosive atteigne les plots.WATERPROOF ELECTRIC FITTING
The present invention relates to the sealed connections of a multi-conductor electric cable to conductive pads and in particular such fittings where the pads, the conductors and an insulating sheath surrounding the conductors are embedded in an encapsulation product intended to prevent that of the humidity or a corrosive atmosphere reaches the studs.

La figure 1 illustre un tel raccord classique. Un dispositif étanche 10, tel qu'un interrupteur, un connecteur ou autre, comprend une cavité 11 dans laquelle débouchent des plots de contact 13. Sur ces plots 13 sont soudées les extrémités dénudées de conducteurs électriques gainés 15. Les conducteurs 15 sont entourés d'une gaine générale 17 et peuvent être blindés. Figure 1 illustrates such a conventional fitting. A sealed device 10, such as a switch, a connector or the like, comprises a cavity 11 into which contact pads open 13. On these pads 13 are soldered the stripped ends of sheathed electrical conductors 15. The conductors 15 are surrounded by 'a general sheath 17 and can be shielded.

Un produit d' encapsulation 19, tel qu' unie résine polymérisable, remplit la cavité 11 en noyant les plots 13, les conducteurs 15 et la portion extrême de la gaine 17. La résine 19 est destinée à empêcher de lthumidité ou une atmosphère corrosive d'atteindre les soudures des conducteurs 15 sur les plots 13. An encapsulation product 19, such as a solid polymerizable resin, fills the cavity 11 by embedding the studs 13, the conductors 15 and the end portion of the sheath 17. The resin 19 is intended to prevent humidity or a corrosive atmosphere from '' reach the welds of the conductors 15 on the studs 13.

Toutefois, cette solution particulièrement économique ne remplit pas adéquatement son rôle lorsque les gaines des conducteurs 15 et la gaine 17 sont en un matériau tel que du téflon peu adhérent pour le produit d'encapsulation. Le téflon est par exemple employé lorsque les câbles doivent subir des températures élevées. Dans ce cas, il subsiste entre les gaines et le produit d'encapsulation des interstices par lesquels l'humidité ou des polluants contenus dans l'atmosphère extérieure peuvent atteindre les soudures. However, this particularly economical solution does not adequately fulfill its role when the sheaths of the conductors 15 and the sheath 17 are made of a material such as Teflon with little adhesion for the encapsulation product. Teflon is for example used when the cables have to undergo high temperatures. In this case, there remain between the sheaths and the encapsulation product interstices through which moisture or pollutants contained in the external atmosphere can reach the welds.

Un objet de la présente invention est de prévoir un raccord électrique qui reste étanche même dans le cas où les gaines sont en un matériau peu adhérent pour un produit d'encapsulation. An object of the present invention is to provide an electrical connection which remains tight even in the case where the sheaths are made of a material which is not very adherent for an encapsulation product.

Cet objet est atteint grâce à un raccord électrique étanche comprenant des câbles individuellement gainés connectés à des plots et un produit dfencapsulation noyant les plots, les câbles et une portion extrême d'une gaine générale entourant les câbles. Une gaine thermo-rétractable est rétractée autour de la portion extrême de la gaine générale et un joint souple annulaire est disposé entre la gaine thermo-rétractable et la gaine générale. This object is achieved thanks to a waterproof electrical connection comprising individually sheathed cables connected to pads and an encapsulation product which drowns the pads, the cables and an end portion of a general sheath surrounding the cables. A heat-shrinkable sheath is retracted around the end portion of the general sheath and an annular flexible seal is disposed between the heat-shrinkable sheath and the general sheath.

Selon un mode de réalisation de la présente invention, les gaines des câbles et la gaine générale sont en un matériau peu adhérent pour les produits d'encapsulation usuels. According to an embodiment of the present invention, the cable sheaths and the general sheath are made of a material which is not very adherent for the usual encapsulation products.

Selon un mode de réalisation de la présente invention, le joint est disposé au niveau d'une portion de la gaine générale noyée dans le produit d'encapsulation. According to an embodiment of the present invention, the seal is arranged at a portion of the general sheath embedded in the encapsulation product.

Selon un mode de réalisation de la présente invention, le joint est un joint torique classique en un matériau élastomère. According to an embodiment of the present invention, the seal is a conventional O-ring made of an elastomeric material.

Selon un mode de réalisation de la présente invention, le diamètre intérieur du joint est inférieur au diamètre de la gaine générale. According to an embodiment of the present invention, the internal diameter of the seal is less than the diameter of the general sheath.

Ces objets, caractéristiques et avantages ainsi que d'autres de la présente invention seront exposés en détail dans la description suivante de modes de réalisation particuliers faite en relation avec les figures jointes parmi lesquelles
la figure 1, précédemment décrite, représente un raccord électrique étanche classique ; et
la figure 2 illustre un mode de réalisation de raccord électrique étanche selon la présente invention.These objects, characteristics and advantages as well as others of the present invention will be explained in detail in the following description of particular embodiments made in relation to the attached figures, among which
Figure 1, previously described, shows a conventional waterproof electrical connection; and
FIG. 2 illustrates an embodiment of a sealed electrical connection according to the present invention.

A la figure 2, on retrouve les mêmes éléments qu'a la figure 1 désignés par des mêmes référenoes. s. Selon la présente invention, une gaine thermo-rétractable 21 est rétractée autour de la portion extrême de la gaine 17 et est également partiellement noyée par le produit d'encapsulation 19. In Figure 2, we find the same elements as in Figure 1 designated by the same references. s. According to the present invention, a heat-shrinkable sheath 21 is retracted around the end portion of the sheath 17 and is also partially submerged by the encapsulation product 19.

Les gaines thermo-rétractables sont en un matériau, généralement du polyuréthane, particulièrement adhérent pour les produits d'encapsulation usuels. Ainsi, il ne se forme pas d'interstice entre la gaine 21 et le produit d'encapsulation 19. Toutefois, le matériau de la gaine thermo-rétractable 21 adhère peu aux matériaux peu adhérents pour les produits d'encapsulation. Ainsi, si la gaine 17 est en téflon, l'interface entre celle-ci et la gaine 21 ne sera pas étanche. The heat-shrinkable sheaths are made of a material, generally polyurethane, which is particularly adherent for the usual encapsulation products. Thus, there is no gap formed between the sheath 21 and the encapsulation product 19. However, the material of the heat-shrinkable sheath 21 adheres little to the poorly adherent materials for the encapsulation products. Thus, if the sheath 17 is made of Teflon, the interface between the latter and the sheath 21 will not be sealed.

Pour remédier à cela, un joint torique 23 est disposé autour de la gaine 17 et la gaine thermo-rétractable 21, lors de son montage, est rétractée en même temps autour de ce joint torique. De préférence, le diamètre intérieur du joint torique 23 sera inférieur au diamètre de la gaine 17 afin que le joint se serre élastiquement autour de la gaine 17. Le joint 23 est, par exemple, un joint d'étanchéité classique en élastomère. To remedy this, an O-ring 23 is arranged around the sheath 17 and the heat-shrinkable sheath 21, during its assembly, is retracted at the same time around this O-ring. Preferably, the internal diameter of the O-ring 23 will be less than the diameter of the sheath 17 so that the seal is tightened elastically around the sheath 17. The seal 23 is, for example, a conventional elastomer seal.

L'action combinée du serrage élastique du joint 23 et du serrage supplémentaire provoquée par la contraction de la gaine 21 autour du joint fournit une étanchéité irréprochable entre les gaines 17 et 21 quelle que soit la nature de la gaine 17. The combined action of the elastic tightening of the joint 23 and of the additional tightening caused by the contraction of the sheath 21 around the joint provides an impeccable seal between the sheaths 17 and 21 whatever the nature of the sheath 17.

De nombreuses variantes et modifications apparaîtront à l'homme de l'art, notamment, le joint 23 peut être disposé au niveau d'une portion de la gaine 17 noyée dans le produit d'encapsulation 19 si la place à l'intérieur de la cavité 11 est suffisante.  Numerous variants and modifications will appear to those skilled in the art, in particular, the seal 23 can be disposed at a portion of the sheath 17 embedded in the encapsulation product 19 if the place inside the cavity 11 is sufficient.

Claims (5)

REVENDICATIONS 1. Raccord électrique étanche comprenant des câbles individuellement gainés (15) connectés à des plots (13) et un produit d 'encapsulation (19) noyant les plots, les câbles et une portion extrême d'une gaine générale (17) entourant les câbles, caractérisé en ce qu'il comprend une gaine thermo-rétractable (21) rétractée autour de la portion extrême de la gaine générale (17), un joint souple annulaire (23) étant disposé entre la gaine thermo-rétractable et la gaine générale. 1. Sealed electrical connection comprising individually sheathed cables (15) connected to pads (13) and an encapsulation product (19) embedding the pads, the cables and an end portion of a general sheath (17) surrounding the cables. , characterized in that it comprises a heat-shrinkable sheath (21) retracted around the end portion of the general sheath (17), an annular flexible seal (23) being disposed between the heat-shrinkable sheath and the general sheath. 2. Raccord selon la revendication 1, caractérisé en ce que les gaines des câbles (15) et la gaine générale (17) sont en un matériau peu adhérent pour les produits d'encapsulation usuels. 2. Connection according to claim 1, characterized in that the cable sheaths (15) and the general sheath (17) are made of a material which is not very adherent for the usual encapsulation products. 3. Raccord selon la revendication 1, caractérisé en ce que le joint (23) est disposé au niveau d'une portion de la gaine générale (17) noyée dans le produit d 'encapsulation (19). 3. Connection according to claim 1, characterized in that the seal (23) is disposed at a portion of the general sheath (17) embedded in the encapsulation product (19). 4. Raccord selon la revendication 1, caractérisé en ce que le joint (23) est un joint torique classique en un matériau élastomère. 4. Connection according to claim 1, characterized in that the seal (23) is a conventional O-ring made of an elastomeric material. 5. Raccord selon la revendication 1, caractérisé en ce que le diamètre intérieur du joint (23) est inférieur au diamètre de la gaine générale (17).  5. Connection according to claim 1, characterized in that the internal diameter of the seal (23) is less than the diameter of the general sheath (17).
FR9114021A 1991-11-06 1991-11-06 Sealed electrical connector Granted FR2683379A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9114021A FR2683379A1 (en) 1991-11-06 1991-11-06 Sealed electrical connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9114021A FR2683379A1 (en) 1991-11-06 1991-11-06 Sealed electrical connector

Publications (2)

Publication Number Publication Date
FR2683379A1 true FR2683379A1 (en) 1993-05-07
FR2683379B1 FR2683379B1 (en) 1997-02-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR9114021A Granted FR2683379A1 (en) 1991-11-06 1991-11-06 Sealed electrical connector

Country Status (1)

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FR (1) FR2683379A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995025360A1 (en) * 1994-03-16 1995-09-21 Cornell Paul A Cable clamp with moisture resistant shield and method for using same
CN102769225A (en) * 2011-05-06 2012-11-07 奥阿泽有限公司 Plug for moisture-protected electrical plug connection
EP3859916A1 (en) * 2020-01-28 2021-08-04 Aptiv Technologies Limited Cable termination and method of manufacture
EP3859922A1 (en) * 2020-01-28 2021-08-04 Aptiv Technologies Limited Cable seal and method of manufacture

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2087170A (en) * 1980-11-05 1982-05-19 Eilentropp Hew Kabel Pull-resistant pressure-tight and moistureresistant connections
US4450318A (en) * 1981-09-29 1984-05-22 Siemens-Allis, Inc. Means and method for providing insulation splice
FR2591395A1 (en) * 1985-12-05 1987-06-12 Metanic Sa Sealed electrical connector
WO1990005166A1 (en) * 1988-11-09 1990-05-17 Raychem Limited Gels

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2087170A (en) * 1980-11-05 1982-05-19 Eilentropp Hew Kabel Pull-resistant pressure-tight and moistureresistant connections
US4450318A (en) * 1981-09-29 1984-05-22 Siemens-Allis, Inc. Means and method for providing insulation splice
FR2591395A1 (en) * 1985-12-05 1987-06-12 Metanic Sa Sealed electrical connector
WO1990005166A1 (en) * 1988-11-09 1990-05-17 Raychem Limited Gels

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995025360A1 (en) * 1994-03-16 1995-09-21 Cornell Paul A Cable clamp with moisture resistant shield and method for using same
CN102769225A (en) * 2011-05-06 2012-11-07 奥阿泽有限公司 Plug for moisture-protected electrical plug connection
EP2521223A3 (en) * 2011-05-06 2014-11-26 Oase GmbH Connector for moisture-proof electric plug-in connector
CN102769225B (en) * 2011-05-06 2016-04-20 奥阿泽有限公司 For the plug of the hot-line insertion and extraction syndeton of moisture protection
EP3859916A1 (en) * 2020-01-28 2021-08-04 Aptiv Technologies Limited Cable termination and method of manufacture
EP3859922A1 (en) * 2020-01-28 2021-08-04 Aptiv Technologies Limited Cable seal and method of manufacture
EP3859917A1 (en) * 2020-01-28 2021-08-04 Aptiv Technologies Limited Cable termination and method of manufacture
EP3859921A1 (en) * 2020-01-28 2021-08-04 Aptiv Technologies Limited Cable seal and method of manufacture
US11404856B2 (en) 2020-01-28 2022-08-02 Aptiv Technologies Limited Cable termination and method of manufacture

Also Published As

Publication number Publication date
FR2683379B1 (en) 1997-02-21

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