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
  • H01R13/521—Sealing between contact members and housing, e.g. sealing insert
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10S439/00—Electrical connectors
  • Y10S439/933—Special insulation
  • Y10S439/936—Potting material or coating, e.g. grease, insulative coating, sealant or, adhesive

Definitions

• the present invention relates to the field of bulkhead connectors and in particular to adaptations making it possible to seal the coaxial-type connectors.
• DESCRIPTION OF THE PRIOR ART There are a plurality of technical devices intended to work in a so-called vacuum atmosphere such as, for example, the components of a rocket or space shuttle, which are confronted with the space vacuum.
• each contact constituting the connector to be made is introduced into a glass bead which is then brought to a very high temperature so that the glass melts again, coats said contacts and adheres to a support of so that the hermeticity is guaranteed in the whole of the connector.
• the very high temperature necessary for the reflow of the glass is likely to damage the coated contact. Also, the latter must be made in a highly alloyed metal or undergoing a particular treatment which considerably increases the cost of
• the connector thus produced is completely hermetic without having resorted to any fusion.
• This method is particularly advantageous in that it also allows, unlike the prior art, to produce hermetic connectors adopting female contacts in the form of sockets.
• the absence of a fusion of any material makes it possible to consider sealing all types of connectors.
• the resin is a strong and strong material that can withstand shocks and manipulations that can break or damage the hermetic connectors manufactured by the glass / metal sealing process.
• This method is further particularly advantageous in that it consists in coating the constituent elements of a connector.
• the resin does not require a melting but only a polymerization, it is possible to coat, during filling of the recessed portion of the support, the constituent elements of a connector such insulants without damaging them.
• This feature therefore has the advantage of using standard elements of connectors but also to reduce the volume to be filled in the recessed part of the support.
• the method of the invention is remarkable in that it consists in internally preforming the recessed portion of said support of protruding shapes so that the constituent elements of the connector are supported and there adjust with clearance so as to achieve the positioning of the constituent elements of the connector relative to said support.
• the method of the invention is remarkable in that it consists, prior to the introduction of the constituent contacts of the connector inside the recessed portion, to fill by means of a resin, the volume left free between the inner surface of the tube and the rod constituting each coaxial contact.
• the specificities of the coaxial contacts require a suitable sealing process.
• the components of the coaxial contacts are sealed together before being inserted and sealed within the connector support.
• the use of the resin ensures the insulation of the rod relative to the tubular body constituting each coaxial contact.
• the use of a resin prevents any damage to the contacts and allows great flexibility in the genres.
• the connector made according to this method is completely hermetic without having used any fusion.
• Another object of the invention is constituted by the coaxial contact adapted to the process of the invention and making it possible to implement it, this contact is of the type of that consisting of a tubular body inside which is arranged axially a rod and which, in the context of a partition penetration and hermetic sealing, has original characteristics and particularly suitable.
• This contact is remarkable in that the tubular body comprises, at one end, an outer female plug and a second end, an external plug. Since there is no hermetic bushing through connector, the constituent elements of the coaxial contacts forming the bushing connector are new.
• the tubular body has at one end, an outer plug and at its second end, an outer female plug. The combination of these two ends requires in the prior art the presence of a cable that was simply removed in the context of the partition traversal application.
• the invention also relates to the hermetic connector obtained by such a method which is remarkable in that it consists of a plurality of coaxial contacts filled and coated with polymerized resin and has on both sides sub-D type coding means , which will be described in more detail below by drawing on the drawings.
• Figure 1 is a schematic overall view in perspective before an embodiment of a hermetic bulkhead through connector of the type "sub-D" coaxial contacts according to the invention.
• FIG. 2 is a schematic overall rear perspective view of the connector of FIG. 1;
• FIG. 3 is a diagrammatic sectional view of the connector of FIG. 1;
• Figure 4 is a schematic sectional detail of an embodiment of a coaxial contact according to the invention.
• the connector referenced C as a whole comprises a support 100 on the front face 110 of which it has a projecting volume 111 adopting the trapezoidal profile inherent in the standard. said sub-D and serving as male key in the connections.
• the support 100 is equipped with fastening means 112 of the latter on the wall to be crossed.
• the front face 110 of the support 100 is provided with a groove 113 into which a seal will be introduced to perfect the hermeticity of the connector in the direct connection of the support 100 with the wall to be crossed.
• this support 100 has inside the projecting volume 111, an insulator 210 formed of eight orifices inside which are the ends 310 of eight coaxial contacts 300, each end having a inner plug and an outer female plug.
• FIG. 2 illustrates the rear face 120 of the connector C which, according to the sub-D standard, has a protruding flange 121 adopting a trapezoidal profile serving as a female polarizer.
• the rear face 120 comprises fixing means and a groove.
• the rear face 120 has an insulator 220 arranged with eight orifices beyond which project, the ends 320 of eight coaxial contacts. These ends 320 have an external plug and an inner female plug.
• this connector C uses a rigid support 100 admitting a recessed portion 130 and having the function of clamping said connector C on the wall to be crossed.
• the sealing process of the invention is based on that of introducing the constituent contacts 300 of the connector C inside the recessed portion 130 of said support 100 and to fill the volume left free between the contacts 300 on the one hand and between said support 100 and said contacts 300 on the other hand by means of a resin R.
• said contacts 300 are coaxial contacts consisting of a tubular body 330 inside which is arranged axially a rod 340.
• the sealing of the coaxial contacts 300 constituting the connector C has been carried out prior to their introduction to the inside of the recessed part, by filling with a resin R, the volume left free between the inner surface of the tube 330 and the rod 340 constituting each coaxial contact.
• the tubular body 330 comprises at one end 310 an external female plug 331 at a second end 320 an external male plug 332.
• said coaxial rod 340 constitutes on a first end 310, a plug 341 and on its other end 320, an inner socket 342.
• said coaxial rod 340 is made in one piece.
• the tubular body 330 has at its central portion 333 a diameter greater than the diameters of its ends 331 and 332.
• This characteristic has the advantage of mitigating conductivity of the resin R by moving the non-insulated walls away from an insulator and creating an outer and inner shoulder that can be used as a plug for the resin both for filling and for coating.
• insulators 350 and 360 maintain the insulation and coaxiality between the rod 340 and the inner surface of the tube 330.
• the realization and the filling of a coaxial contact are made in the following way:
• the inner female plug 342 has at one end of the rod 340 is equipped with an insulator 350,
• This insulated plug is inserted into the end of the tubular body 330 having the outer plug 332, the central portion 333 is filled with a resin R which polymerizes,
• a second insulator 360 is then placed along the rod 340.
• the volume left between the different insulators 350 and 360 inside the contact is filled with a resin R.
• said tubular body 330 is broken down by a first portion consisting of the end defining the outer plug 332 associated with the central portion 333 and a second portion defining the outer female plug 331, the two parts being crimped.
• the resin is epoxy polyurethane and more generally multi-component.

Landscapes

• Coupling Device And Connection With Printed Circuit (AREA)
• Connector Housings Or Holding Contact Members (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=29286487

Family Applications (1)

Country Status (5)

Families Citing this family (10)

Family Cites Families (13)

• 2002
  • 2002-05-15 FR FR0205940A patent/FR2839815B1/fr not_active Expired - Lifetime
• 2003
  • 2003-05-15 WO PCT/FR2003/001474 patent/WO2003098747A1/fr not_active Application Discontinuation
  • 2003-05-15 EP EP03752811.4A patent/EP1504500B1/de not_active Expired - Lifetime
  • 2003-05-15 US US10/514,452 patent/US7377808B2/en not_active Expired - Lifetime
  • 2003-05-15 AU AU2003251042A patent/AU2003251042A1/en not_active Abandoned

Non-Patent Citations (1)

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