EP0403371A1 - Electrical connector for connecting a shielded multiconductor cable to an electrical unit which is inside a frame - Google Patents

Electrical connector for connecting a shielded multiconductor cable to an electrical unit which is inside a frame Download PDF

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Publication number
EP0403371A1
EP0403371A1 EP19900401627 EP90401627A EP0403371A1 EP 0403371 A1 EP0403371 A1 EP 0403371A1 EP 19900401627 EP19900401627 EP 19900401627 EP 90401627 A EP90401627 A EP 90401627A EP 0403371 A1 EP0403371 A1 EP 0403371A1
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EP
European Patent Office
Prior art keywords
connector
sheet
electrical
parts
coupled
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
EP19900401627
Other languages
German (de)
French (fr)
Other versions
EP0403371B1 (en
Inventor
Charles César
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.)
Bull SAS
Original Assignee
Bull SAS
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Filing date
Publication date
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Publication of EP0403371A1 publication Critical patent/EP0403371A1/en
Application granted granted Critical
Publication of EP0403371B1 publication Critical patent/EP0403371B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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]
    • H01R13/6598—Shield material
    • H01R13/6599—Dielectric material made conductive, e.g. plastic material coated with metal
    • 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
    • H01R13/6596—Specific features or arrangements of connection of shield to conductive members the conductive member being a metal grounding panel
    • 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  
    • 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]
    • H01R13/6581—Shield structure
    • H01R13/6582—Shield structure with resilient means for engaging mating connector
    • 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
    • H01R13/6593—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable the shield being composed of different pieces
    • 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
    • Y10S439/939—Electrical connectors with grounding to metal mounting panel

Definitions

  • the present invention relates to an electrical connector for connecting a shielded multiconductor cable to an electrical assembly placed inside a chassis.
  • the electrical assemblies which, enclosed in these frames, consume electrical energy are usually supplied by electrical generators which are designed to deliver electrical currents whose voltage, current and / or frequency characteristics must meet well-defined conditions to allow these assemblies to function properly.
  • electrical generators which are designed to deliver electrical currents whose voltage, current and / or frequency characteristics must meet well-defined conditions to allow these assemblies to function properly.
  • Some of these electric generators such as those which deliver direct voltages of a few tens of volts for example, can be housed inside the same chassis as that which accommodates the consumer assembly which is supplied by these generators.
  • other generators such as those which are known by the name of inverters for example, cannot take place inside the chassis in which the consumer assembly is located which they must supply, for the reason that these generators are often the source of relatively high high frequency electromagnetic radiation and therefore require solid shielding which makes them particularly heavy and bulky.
  • this connector being made up of two parts of connector, the first of which, integral with a chassis, comprises an insulating body provided with housings into which are inserted contact elements of a first type (for example female), these contact elements being connected to the circuits of a generator assembly or of the consumer assembly contained in this chassis, and the second of which, fixed to one end of the multiconductor cable, comprises an insulating body provided with housings in which elements are inserted contact elements of a second type (for example male) intended to be brought into contact with the contact elements of the first type when these two connector parts are coupled to one another, these contact elements of the second type being connected to the conductive wires of the multiconductor cable.
  • a first type for example female
  • the second of which, fixed to one end of the multiconductor cable comprises an insulating body provided with housings in which elements are inserted contact elements of a second type (for example male) intended to be brought into contact with the contact elements of the first type when these two connector parts are coupled to one another, these contact elements of the second type
  • the insulating body of the first connector part is provided with a first shielding element which, made of a conductive material, is electrically connected to the metal frame.
  • the insulating body of the second connector part is provided with a second shielding element which, also made of a conductive material, is electrically connected to the shielding sheath of the cable.
  • These two shielding elements are profiled so as to fit one into the other during the coupling of the two connector parts, this which ensures continuity of the shielding between the multiconductor cable and the metal frame.
  • the present invention overcomes these drawbacks and proposes an electrical connector which, intended to allow the connection of a shielded multiconductor cable to an electrical assembly (generator or consumer of energy) enclosed within a metal frame, ensures the continuity of the shielding between this cable and this chassis, without requiring expensive shielding elements and requiring relatively high mechanical forces during the coupling and uncoupling operations of the two parts of this connector.
  • the present invention relates to an electrical connector allowing a multiconductor cable provided with a shielding sheath to be electrically connected to an electrical assembly placed inside a metal chassis, this connector being made up of a part of a first connector part comprising an insulating body provided with contact elements of a first type capable of being electrically connected to said electrical assembly, this body being intended to be secured to said chassis, inside thereof, opposite an opening made in a enclosure plate of this chassis, on the other hand of a second connector part comprising an insulating body having a coupling face intended to be brought at least close to the insulating body of said first part when these two parts are coupled to each other, the body of the second part also having faces adjacent to said coupling face, the latter body insulator being provided with housings into which are inserted contact elements of a second type intended to be connected to the contact elements of said first connector part when these two parts are coupled to each other, these contact elements of second type being electrically connected to the conductors of said screened cable, said connector being characterized in that
  • the connector which is shown in Figure 1 comprises two connector parts 10 and 11 which can be coupled to each other in a manner which will be indicated later.
  • the connector part 10 comprises an insulating body 12, having the shape of a parallelepiped whose width e is relatively small compared to its length L and its height h. Thus, in the example described, this height h is substantially equal to five times the value of the width e.
  • This body 12 is made of an insulating material having high mechanical strength and excellent electrical insulation for the contact elements, such as, for example, the acetal resin sold commercially under the name of "Delrin" (registered trademark) or else polycarbonate. commercially sold under the name of "Makrolon" (registered trademark).
  • the insulating body 12 is provided with housings 13, of cylindrical shape, which, passing through the mass of this body, each open onto the two parallel faces 14 and 15 of this body which have for dimensions the values e and h indicated above.
  • housings 13, of cylindrical shape which, passing through the mass of this body, each open onto the two parallel faces 14 and 15 of this body which have for dimensions the values e and h indicated above.
  • FIG. 1 only the face 14, which constitutes the coupling face of the connector part 10 is visible, while the face 15, which is located at the rear of the part 10, as can be seen. understand by referring to Figure 3, is not visible.
  • each of the contact elements which are inserted into these housings 13 is of the female type and has a recessed part 30.
  • each contact element 16 is connected, at its end situated on the side of the face 15, to a sheathed conductive wire 17 which establishes the electrical connection between this contact element and an electrical apparatus 18. It will be considered that this electrical apparatus is normally enclosed inside a metal frame which has been partially represented in FIG. 1, this chassis, designated by the reference 19, serving both as a mechanical support and as a shield for this apparatus.
  • the chassis 19, which is of parallelepipedal shape, comprises enclosure plates which ensure the delimitation of the interior space of this chassis.
  • One, 20, of the four vertical enclosure plates of this chassis is pierced with a rectangular opening 21 opposite which is disposed the part of the connector 10, this connector part being placed inside the chassis 19 and being made integral with this chassis by means of fixing of known type (not shown).
  • the position of the connector part 10 is such that its coupling face 14 is flush with or slightly exceeds the plane of the enclosure plate 20, which allows the connector part 11 which is located outside the chassis 19 to be able to be connected to the connector part 10, in a manner which will be explained later.
  • the connector part 11 which is exploded in this figure, comprises an insulating body 22, of parallelepiped shape, having substantially the same width e and the same height h as those of the insulating body 12 of the connector part 10, this insulating body 22 thus having two faces having each for dimensions e and h. Only one, 27, of these two faces is visible in FIG. 2.
  • the other face, designated by the reference 23 in FIG. 3, constitutes the coupling face of the connector part 11, this face of coupling 23 being intended to come into contact, or at least in the immediate vicinity, of the coupling face 14 of the connector part 10 when these two parts 10 and 11 are coupled to one another.
  • the insulating body 22 has four faces 40, 41, 42 and 43 which are adjacent to the coupling face 23 and two of which, 42 and 43, are oriented vertically in the figure, each of these two faces having for dimensions h and M, M denoting the length of the insulating body 22.
  • the faces 40 and 41 are, respectively, the upper face and the underside of the insulating body 22.
  • This insulating body 22 is made of an insulating material similar to that which constitutes the insulating body 12 of the connector part 10.
  • FIGS. 2 and 3 show that the insulating body 22 is provided, on its coupling face 23, with hollow insulating plugs 24, in number equal to that of the housings 13 of the insulating body 12, these hollow plugs being intended to engage each one respectively in each of these housings 13 during the coupling of the parts 10 and 11.
  • Each of these plugs 24 is pierced with a cylindrical cavity eu 25 in which engages, during the introduction of the plug into a housing 13, the contact element 16 which is located in this housing.
  • Each cylindrical cavity 25 communicates with a housing 26 which, from the coupling face 23, crosses the mass of the insulating body 22 to open on the face 27 of this body which is opposite to the coupling face 23.
  • This housing 26 is used to receive a contact element 28 ending in a rod 29 which, extending along the axis of the cylindrical cavity 25, is introduced into the recessed part 30 of the contact element 16 during the coupling the two connector parts 10 and 11.
  • Each contact element 28 is connected, at its end situated next to the face 27, to each of the conducting wires 31 of a shielded multiconductor cable 32 (FIG. 1), the assembly of these conductive wires being disposed inside a shielding sheath 33 made of an electrically conductive material, this sheath itself being enclosed within an envelope 34 of insulating material.
  • the connector part 11 which is shown in FIG. 2 further comprises two insulating covers 35 and 36 which, provided removable, can be assembled to one another by means of screws 37.
  • These two covers 35 and 36 which are each provided with a curved tab 38 which can be engaged in a stirrup 39 formed by molding on the insulating body 22, are intended to protect the end portion of the shielded multiconductor cable 32 on which the connector part 11, ensuring, as can be understood from FIG. 3, a reinforcement of the mechanical rigidity of this terminal portion, which reduces the risks of separation of the cable 32 and the connector part 11 during repeated operations of coupling and uncoupling of this part with the connector part 10.
  • these two covers which are arranged on either side of this terminal portion of the cable 32, as seen in Figure 3 , prevent, when assembled together, that the stripped end of the shielding sheath 33 of this cable does not undergo, during handling of this cable, deformations capable of causing involuntary contacting of the conducting wires 31 with each other by means of this sheath 33.
  • FIGS 3 and 4 allow to understand that, during a coupling operation of the two connector parts 10 and 11, each of the hollow plugs 24 of the part 11 engages respectively in the free space of each of the housings 13 of part 10, that is to say in the region of the housing which is not occupied by the contact element 16 which is in this housing, while, simultaneously, each of the rods 29 respectively penetrates into each of the recessed parts 30 of the contact elements 16.
  • the housings 13, the plugs 24 and the contact elements 16 are dimensioned so as to provide a small clearance between each housing and each hollow plug inserted in this housing and between each hollow plug and each contact element 16 introduced in this fi che hollow.
  • the hollowed out parts 30 and the rods 29 are produced in such a way that the introduction of a rod 29 into a hollowed out part 30 takes place with a slight friction of the surfaces of these parts which are brought into contact. It can be observed, by comparing FIGS. 3 and 4, that, at the end of the coupling operation of the two connector parts 10 and 11, the coupling faces 14 and 23 of these two parts are in the immediate vicinity one from the other.
  • these two parts are provided with a locking device constituted, in the example described, by a hooking lug 45 (FIG. 1) which, made of a material similar to that constituting the insulating body 22, is fixed, in a flexible manner, to the upper face 40 of this body 22, this tab 45 being provided with an opening 46 into which engages, when the two connector parts 10 and 11 are coupled to each other, a lug 47 formed by molding on the upper face of the connector part 10.
  • the tab 45 is integral with an actuating tongue 48 which, when the two connector parts 10 and 11 are coupled to each other, allows the operator to lift tab 45 to release the lug 47 of the opening 46 and thus free the connector part 11 so that it can then be uncoupled from the part 10.
  • Another locking device similar to that which has just been described, is also provided on the underside 41 of the connector part 11.
  • Figures 1 and 2 also show that the side face 42 of the insulating body 22 of the second connector portion is coated with a sheet 50 which, made of an electrically conductive material, is provided with a recess 51 in which can be engaged, when the cover 35 is removed, the stirrup 39 which protrudes on this face 42.
  • the recess 51 is dimensioned such that the engagement of the stirrup 39 in this recess is effected with a very low clearance, so that the sheet 50 cannot move on the face 42 on which it has been applied.
  • this sheet 50 is chosen to be thin enough so that, once applied to the face 42, it does not hinder the introduction, into the stirrup 39 of this face, of the curved tab 38 of the cover 35, this introduction, which aims to secure the cover 35 with the insulating body 22, further having the effect of preventing the release of the sheet 50 of this stirrup.
  • the sheet 50 which has thus been positioned on the lateral face 42, has a free part 52 which, from the face 27 of the insulating body 22, extends beyond this body, that is to say at right of the body 22 shown in FIG. 3, so as to take place, in the interior space between the two insulating covers 35 and 36, against the internal face of the cover 35.
  • This free part 52 is electrically connected to the shielding sheath 33 of the cable 32, this connection operation, carried out by welding, being carried out, either after the sheet 50 has been engaged, by its recess 51, in the stirrup 39 of the face 42, or, on the contrary, before this sheet is engaged in this recess.
  • the sheet 50 which has been engaged in this stirrup also has a flexible part 53 which, as can be seen in FIG. 3, extends along the insulating body 22, to the left of it, that is to say substantially in the direction of the first connector part 10, when the second connector part 11 is positioned with a view to being coupled to this first connector part.
  • a flexible part 53 which, as can be seen in FIG. 3, extends along the insulating body 22, to the left of it, that is to say substantially in the direction of the first connector part 10, when the second connector part 11 is positioned with a view to being coupled to this first connector part.
  • this flexible part 53 has, near its end 54, an end portion 55 which has been slightly bent, in a direction having the effect of moving this end 54 away from the plane P of the lateral face 42, this terminal portion 55 forming with this plane P an angle B ⁇ less than eighty ten degrees. In a more particularly advantageous embodiment, this angle B ⁇ has a value practically equal to forty five degrees. Furthermore, as can be understood with reference to FIGS. 3 and 4, the flexible part 53 has a length such that, when the connector part 11 is moved to be coupled to the connector part 10, the end portion 55 of this flexible part comes into contact with the enclosure plate 20 a little before the coupling operation of the two connector parts is completed.
  • the force G with which the flexible part of the sheet 50 is applied to the enclosure plate 20 must have a value sufficient to make it possible to ensure good contact between this sheet 50 and this plate 20.
  • this force should not not exceed a certain limit value above which the coupling operation of the two connector parts 10 and 11 would prove difficult for the operator.
  • the value of this force G expressed in newtons, remains, preferably, between 0.02b and 0.12b, b representing the dimension, expressed in millimeters, of the end 54 of this sheet.
  • this sheet 50 is made of steel and thus has a modulus of elasticity practically equal to 25,000 daN / mm2.
  • the contact between the sheet 50 and the enclosure plate 20 is well ensured, and this all the more so as the friction exerted by the end 54 of this sheet, during operations of coupling and uncoupling of the two connector parts 10 and 11 has the effect of cleaning the zone of this plate 20 which is subjected to this friction, by freeing it of traces of insulating material which can form on this zone, these traces which may be, for example, traces of oxides.
  • the sheet 50 achieves excellent continuity between the shielding sheath 33 of the cable 32 and the enclosure plate 20 which participates in the shielding of the metal frame 19.
  • the terminal portion of the sheet 50 can be provided with notches 57 which, practiced at regular intervals and oriented in a direction perpendicular to the end of this terminal portion, allow a better distribution of the contact force along this end.
  • the conductive sheet 50 can naturally be made of a conductive material, other than steel, capable of undergoing small elastic deformations and of resuming its initial shape after the disappearance of the bending force.
  • this sheet could be made of a copper alloy with beryllium.
  • the thickness of this sheet is practically equal to 0.2 mm.
  • the lateral face 43 of the insulating body 22 is also provided, as can be seen in FIGS. 2, 3 and 4 , of a sheet of conductive material 60, this sheet being analogous to the sheet 50 and being mounted in a similar manner to that of the latter sheet.
  • the upper 40 and lower 41 faces of the insulating body 22 each have a width e which is relatively small, this width being close to five millimeters in the example described. Consequently, the surface of each of these two faces is relatively small and, therefore, it is not necessary to provide these faces with sheets of conductive material, the sheets 50 and 60 being in fact sufficient to ensure the continuity of the shielding of electrical circuits against the effects of external electromagnetic radiation.
  • the sheets 50 and 60 being in fact sufficient to ensure the continuity of the shielding of electrical circuits against the effects of external electromagnetic radiation.
  • the insulating body 22 may have a shape in which the four faces 40, 41, 42 and 43 which are adjacent to the face coupling of this body each have non-negligible dimensions, that is to say at least equal to fifteen millimeters for example.
  • each of these four faces it is necessary to provide with a sheet of conductive material, some of these sheets, such as that which is designated by the reference 80 in Figure 5, which can be cut so as to leave uncovered the locking devices which are provided on the faces on which these sheets are arranged.
  • the electrical connector which is shown in FIG. 5 is more particularly intended for ensuring the connection of a shielded multiconductor cable having a circular section.
  • each of the sheets of conductive material may have a shape different from that which is shown in FIGS. 1 to 5.
  • the sheet 50 which is mounted on the face 42 of the connector part 11 comprises, near its end 54, an end portion 55 which is folded back so that its cross section has practically the shape of a U, this U having two branches 70 and 71 oriented substantially in a direction parallel to the plane of the face 42, these two branches being joined by a base 72 which, when the two connector parts 10 and 11 are coupled comes into contact with the plate pregnant 20.
  • the terminal portion 55 of the sheet 50 has a cross section which also has the shape of a U, but with this difference that the two branches 70 and 71 of this U are oriented substantially in a direction perpendicular to the plane of the face 42. It can be seen, in FIG. 7, that the branch 70, which is the furthest from the end 54 of the sheet 50, is in fact folded almost four- twenty-ten degrees relative to the rest of this sheet, and that the branch 71, which is parallel to this branch 70, comes into contact with the external face of the enclosure plate 20 when the two connector parts 10 and 11 are coupled .
  • the terminal portion 55 of the sheet 50 has a cross section which has substantially the shape of a V, this V having two branches 70 and 71 which form an angle ⁇ between them whose value is between 60 ° and 75 °.
  • the branch 71 which is closest to the end 54 of this sheet 50 forms with the enclosure plate 20, when the two connector parts 10 and 11 are coupled, an angle D ⁇ whose value is included between 15 ° and 25 °.

Landscapes

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

Abstract

1. L'invention concerne un connecteur électrique pour le raccordement d'un câble multiconducteur blindé à un ensemble électrique enfermé à l'intérieur d'un châssis. 2. Ce connecteur comprend deux parties (10 et 11) dont l'une (10), reliée à un ensemble électrique (18) enfermé à l'intérieur d'un châssis, est fixée de façon à appara tre au travers d'une ouverture pratiquée dans une plaque d'enceinte (20) de ce châssis, alors que l'autre partie (11) est fixée à l'extrémité d'un câble multiconducteur blindé (32). Cette partie (11) est pourvue, sur l'une au moins de ses faces latérales (42, 43), d'une feuille (50) qui est reliée à la gaine de blindage du câble (32) et qui, lors de l'accouplement des deux parties (10 et 11), vient au contact de la plaque conductrice (20), assurant ainsi la continuité du blindage de protection des circuits électriques contre les effets des rayonnements électromagnétiques externes. 3. Application à la technique de raccordement des équipements électroniques utilisés pour le traitement des informations.1. The invention relates to an electrical connector for connecting a shielded multiconductor cable to an electrical assembly enclosed within a chassis. 2. This connector comprises two parts (10 and 11), one of which (10), connected to an electrical assembly (18) enclosed inside a chassis, is fixed so as to appear through a opening made in an enclosure plate (20) of this chassis, while the other part (11) is fixed to the end of a shielded multiconductor cable (32). This part (11) is provided, on at least one of its lateral faces (42, 43), with a sheet (50) which is connected to the cable shielding sheath (32) and which, during the coupling of the two parts (10 and 11) comes into contact with the conductive plate (20), thus ensuring the continuity of the shielding for protecting electrical circuits against the effects of external electromagnetic radiation. 3. Application to the technique of connecting electronic equipment used to process information.

Description

La présente invention se rapporte à un connecteur électrique pour le raccordement d'un câble multiconducteur blindé à un ensemble électrique placé à l'intérieur d'un châssis.The present invention relates to an electrical connector for connecting a shielded multiconductor cable to an electrical assembly placed inside a chassis.

Dans la technique de construction des équipements électroniques utilisés pour les télécommunications et, plus particulièrement, pour le traitement des informations, il est fait un large usage d'ensembles électriques plus ou moins complexes qui, tels que les enregistreurs électriques ou les circuits électroniques fonctionnant par impulsions par exemple, sont particulièrement sensibles aux effets perturbateurs occasionnés par les rayonnements électromagnétiques engendrés par d'autres circuits électriques extérieurs à ces ensembles. C'est pourquoi ces ensembles électriques, afin d'être protégés contre ces rayonnements parasites, sont généralement enfermés à l'intérieur d'un châssis métallique qui sert à la fois de support mécanique et de blindage à l'ensemble électrique.In the technique of construction of electronic equipment used for telecommunications and, more particularly, for information processing, there is a wide use of more or less complex electrical assemblies which, such as electrical recorders or electronic circuits operating by pulses for example, are particularly sensitive to the disturbing effects caused by electromagnetic radiation generated by other electrical circuits external to these assemblies. This is why these electrical assemblies, in order to be protected against this parasitic radiation, are generally enclosed inside a metal frame which serves both as mechanical support and as a shield for the electrical assembly.

Les ensembles électriques qui, enfermés dans ces châssis, consomment de l'énergie électrique, sont habituellement alimentés par des générateurs électriques qui sont conçus pour délivrer des courants électriques dont les caractéristiques de tension, d'intensité et/ou de fréquence, doivent répondre à des conditions bien déterminés afin de permettre à ces ensembles de fonctionner correctement. Certains de ces générateurs électriques, tels que ceux qui délivrent des tensions continues de quelques dizaines de volts par exemple, peuvent être logés à l'intérieur du même châssis que celui qui accueille l'ensemble consommateur qui est alimenté par ces générateurs. Au contraire, d'autres générateurs, tels que ceux qui sont connus sous le nom d'ondulateurs par exemple, ne peuvent prendre place à l'intérieur du châssis dans lequel se trouve l'ensemble consommateur qu'ils doivent alimenter, pour la raison que ces générateurs sont souvent à l'origine d'un rayonnement électromagnétique de haute fréquence relativement important et nécessitent, de ce fait, un solide blindage qui les rend particulièrement lourds et encombrants. En outre, ces générateurs par suite des tensions électriques relativement élevées - de l'ordre de quelques centaines de volts - qui règnent à l'intérieur d'eux, nécessitent une isolation électrique soignée et leur insertion, à l'intérieur du châssis contenant l'ensemble à alimenter, risquerait de se révéler dangereuse pour les personnes chargées d'intervenir, lors des opérations d'entretien, sur cet appareillage, si, pour une raison quelconque, ces générateurs présentaient un défaut d'isolement. Etant donné alors que chacun de ces générateurs est placé dans un châssis différent de celui dans lequel se trouve l'ensemble consommateur à alimenter, il est donc nécessaire, pour assurer le raccordement électrique entre un générateur et cet ensemble, d'utiliser un câble multiconducteur blindé dont les fils conducteurs servent à établir les liaisons indispensables entre les circuits électriques du générateur et ceux de l'ensemble consommateur, et dont la gaine de blindage est reliée aux deux châssis contenant ce générateur et cet ensemble consommateur. Afin de permettre à ce câble multiconducteur blindé d'être facilement déconnecté de l'un ou l'autre de ces deux châssis, en vue notamment de la substitution d'un générateur ou d'un ensemble consommateur défaillant par un autre générateur ou un autre ensemble consommateur, on a utilisé, dans l'art antérieur, des connecteurs blindés du type de celui qui a été décrit et représenté dans le brevet des Etats-Unis d'Amérique N° 3.904.265, ce connecteur étant constitué de deux parties de connecteur dont la première, solidaire d'un châssis, comprend un corps isolant pourvu de logements dans lesquels sont insérés des éléments de contact d'un premier type (par exemple femelle), ces éléments de contact étant reliés aux circuits d'un ensemble générateur ou de l'ensemble consommateur contenu dans ce châssis, et dont la seconde, fixée à une extrémité du câble multiconducteur, comprend un corps isolant pourvu de logements dans lesquels sont insérés des éléments de contact d'un second ype (par exemple mâle) prévus pour être mis en contact avec les éléments de contact du premier type lorsque ces deux parties de connecteur sont accouplées l'une à l'autre, ces éléments de contact du second type étant reliés aux fils conducteurs du câble multiconducteur. Le corps isolant de la première partie de connecteur est muni d'un premier élément de blindage qui, réalisé en un matériau conducteur, est relié électriquement au châssis métallique. De même, le corps isolant de la seconde partie de connecteur est muni d'un second élément de blindage qui, réalisé également en un matériau conducteur, est relié électriquement à la gaine de blindage du câble.The electrical assemblies which, enclosed in these frames, consume electrical energy, are usually supplied by electrical generators which are designed to deliver electrical currents whose voltage, current and / or frequency characteristics must meet well-defined conditions to allow these assemblies to function properly. Some of these electric generators, such as those which deliver direct voltages of a few tens of volts for example, can be housed inside the same chassis as that which accommodates the consumer assembly which is supplied by these generators. On the contrary, other generators, such as those which are known by the name of inverters for example, cannot take place inside the chassis in which the consumer assembly is located which they must supply, for the reason that these generators are often the source of relatively high high frequency electromagnetic radiation and therefore require solid shielding which makes them particularly heavy and bulky. In addition, these generators due to the relatively high electrical voltages - of the order of a few hundred volts - which reign inside them, require careful electrical insulation and their insertion, inside the chassis containing the assembly to be supplied, could prove to be dangerous for the persons responsible for intervening, during maintenance operations, on this apparatus, if, for any reason, these generators had an insulation fault. Since each of these generators is placed in a chassis different from that in which the consumer assembly to be supplied is located, it is therefore necessary, to ensure the electrical connection between a generator and this assembly, to use a multiconductor cable shielded whose conductive wires are used to establish the essential connections between the electrical circuits of the generator and those of the consumer assembly, and whose shielding sheath is connected to the two chassis containing this generator and this consumer assembly. In order to allow this shielded multiconductor cable to be easily disconnected from one or the other of these two chassis, in particular with a view to replacing a faulty generator or consumer assembly by another generator or another together consumer, we used in the prior art, shielded connectors of the type which has been described and represented in the patent of the United States of America No. 3,904,265, this connector being made up of two parts of connector, the first of which, integral with a chassis, comprises an insulating body provided with housings into which are inserted contact elements of a first type (for example female), these contact elements being connected to the circuits of a generator assembly or of the consumer assembly contained in this chassis, and the second of which, fixed to one end of the multiconductor cable, comprises an insulating body provided with housings in which elements are inserted contact elements of a second type (for example male) intended to be brought into contact with the contact elements of the first type when these two connector parts are coupled to one another, these contact elements of the second type being connected to the conductive wires of the multiconductor cable. The insulating body of the first connector part is provided with a first shielding element which, made of a conductive material, is electrically connected to the metal frame. Similarly, the insulating body of the second connector part is provided with a second shielding element which, also made of a conductive material, is electrically connected to the shielding sheath of the cable.

Ces deux éléments de blindage sont profilés de manière à venir s'ajuster l'un dans l'autre lors de l'accouplement des deux parties de connecteur, ce qui assure une continuité du blindage entre le câble multiconducteur et le châssis métallique.These two shielding elements are profiled so as to fit one into the other during the coupling of the two connector parts, this which ensures continuity of the shielding between the multiconductor cable and the metal frame.

Dans un connecteur électrique de ce genre, il est nécessaire que les différentes pièces constitutives du connecteur soient usinées et ajustées avec une très grande précision afin de permettre, lors de l'accouplement des deux parties du connecteur, d'une part aux éléments de contact, qui sont relativement petits, de pouvoir être mis en contact les uns avec les autres sous une pression mécanique de valeur déterminée, d'autre part aux éléments de blindage de s'emboîter l'un dans l'autre avec un jeu aussi réduit que possible. Il en résulte que, non seulement la fabrication d'un tel connecteur, qui exige un parfait positionnement des différentes pièces constitutives les unes par rapport aux autres, se révèle particulièrement longue et coûteuse, mais les opérations répétées de connexion et de déconnexion des deux parties du connecteur, qui nécessitent des efforts mécaniques relativement importants du fait de l'emboîtement des deux éléments de blindage, finissent, à la longue, par entraîner des désaxements des éléments de contact, ce qui risque, naturellement, de provoquer une détérioration de ces éléments de contact et de conduire ainsi à une mise hors d'usage rapide du connecteur.In an electrical connector of this kind, it is necessary that the various component parts of the connector are machined and adjusted with great precision in order to allow, when coupling the two parts of the connector, on the one hand to the contact elements , which are relatively small, to be able to be brought into contact with each other under a mechanical pressure of determined value, on the other hand for the shielding elements to fit into one another with a clearance as reduced as possible. As a result, not only the manufacture of such a connector, which requires perfect positioning of the various component parts with respect to each other, proves to be particularly long and costly, but the repeated operations of connection and disconnection of the two parts of the connector, which require relatively large mechanical forces due to the interlocking of the two shielding elements, eventually, in the long run, causing misalignments of the contact elements, which naturally risks causing these elements to deteriorate contact and thus lead to a rapid decommissioning of the connector.

La présente invention remédie à ces inconvénients et propose un connecteur électrique qui, destiné à permettre le raccordement d'un câble multiconducteur blindé à un ensemble électrique (générateur ou consommateur d'énergie) enfermé à l'intérieur d'un châssis métallique, assure la continuité du blindage entre ce câble et ce châssis, sans pour cela nécessiter des éléments de blindage coûteux et exigeant des efforts mécaniques relativement importants lors des opérations d'accouplement et de désaccouplement des deux parties de ce connecteur.The present invention overcomes these drawbacks and proposes an electrical connector which, intended to allow the connection of a shielded multiconductor cable to an electrical assembly (generator or consumer of energy) enclosed within a metal frame, ensures the continuity of the shielding between this cable and this chassis, without requiring expensive shielding elements and requiring relatively high mechanical forces during the coupling and uncoupling operations of the two parts of this connector.

Plus précisément, la présente invention concerne un connecteur électrique permettant à un câble multiconducteur pourvu d'une gaine de blindage d'être raccordé électriquement à un ensemble électrique placé à l'intérieur d'un châssis métallique, ce connecteur étant constitué, d'une part d'une première partie de connecteur comprenant un corps isolant pourvu d'éléments de contact d'un premier type aptes à être reliés électriquement audit ensemble électrique, ce corps étant destiné à être solidarisé avec ledit châssis, à l'intérieur de celui-ci, en regard d'une ouverture pratiquée dans una plaque d'enceinte de ce châssis, d'autre part d'une seconde partie de connecteur comprenant un corps isolant présentant une face d'accouplement destinée à être amenée au moins à proximité du corps isolant de ladite première partie lorsque ces deux parties sont accouplées l'une à l'autre, le corps de la seconde partie présentant en outre des faces adjacentes à ladite face d'accouplement, ce dernier corps isolant étant pourvu de logements dans lesquels sont insérés des éléments de contact d'un second type prévus pour être connectés aux éléments de contact de ladite première partie de connecteur lorsque ces deux parties sont accouplées l'une à l'autre, ces éléments de contact de second type étant reliés électriquement aux conducteurs dudit câble blindé, ledit connecteur étant caractérisé en ce que le corps isolant de ladite seconde partie de connecteur est muni, sur l'une au moins desdites faces adjacentes, d'une feuille de matériau conducteur reliée à la gaine de blindage dudit câble blindé, cette feuille présentant une partie flexible s'étendant sensiblement vers ladite première partie de connecteur lorsque celle-ci est accouplée à ladite seconde partie de connecteur, cette partie flexible ayant une longueur telle que, lorsque ces deux parties de connecteur sont accouplées l'une à l'autre, elle est apte à se trouver en contact élastique avec ladite plaque d'enceinte et à assurer ainsi la continuité du blindage de protection des circuits électriques contre les effets des rayonnements électromagnétiques externes.More specifically, the present invention relates to an electrical connector allowing a multiconductor cable provided with a shielding sheath to be electrically connected to an electrical assembly placed inside a metal chassis, this connector being made up of a part of a first connector part comprising an insulating body provided with contact elements of a first type capable of being electrically connected to said electrical assembly, this body being intended to be secured to said chassis, inside thereof, opposite an opening made in a enclosure plate of this chassis, on the other hand of a second connector part comprising an insulating body having a coupling face intended to be brought at least close to the insulating body of said first part when these two parts are coupled to each other, the body of the second part also having faces adjacent to said coupling face, the latter body insulator being provided with housings into which are inserted contact elements of a second type intended to be connected to the contact elements of said first connector part when these two parts are coupled to each other, these contact elements of second type being electrically connected to the conductors of said screened cable, said connector being characterized in that the insulating body of said second connector part is provided, on the u at least of said adjacent faces, of a sheet of conductive material connected to the shielding sheath of said screened cable, this sheet having a flexible part extending substantially towards said first connector part when the latter is coupled to said second part connector, this flexible part having a length such that, when these two connector parts are coupled to one another, it is able to be in elastic contact with said enclosure plate and thus to ensure the continuity of the shielding of electrical circuits against the effects of external electromagnetic radiation.

La présente invention sera mieux comprise et d'autres buts, détails et avantages de celle-ci apparaîtront mieux dans la description suivante, donnée à titre d'exemple non limitatif et en se référant aux dessins annexés sur lesquels :

  • - La figure 1 est une vue en perspective montrant un connecteur électrique établi selon l'invention pour assurer le raccordement d'un câble multiconducteur blindé à un ensemble électrique enfermé à l'intérieur d'un châssis, ce connecteur étant équipé de pièces de blindage établies selon une première forme de réalisation,
  • - La figure 2 est une vue en perspective, avec parties éclatées, montrant la constitution de la partie de connecteur qui, sur la figure 1, est fixée à l'une des extrémités du câble multiconducteur blindé,
  • - La figure 3 est une vue en coupe, suivant un plan passant par une ligne indiquée par 3.3 sur la figure 1, montrant la position occupée par les différentes pièces du connecteur lorsque les deux parties de ce connecteur sont désaccouplées,
  • - La figure 4 est une vue en coupe, suivant un plan passant par une ligne indiquée par 3.3 sur la figure 1, montrant la position occupée par les différentes pièces du connecteur lorsque les deux parties de ce connecteur sont accouplées,
  • - La figure 5 est une vue en perspective, montrant un autre connecteur réalisé selon l'invention, mais plus particulièrement adapté au cas où le câble multiconducteur blindé présente une section de forme circulaire,
  • - La figure 6 est une vue en coupe, montrant un connecteur dont les pièces ûe blindage sont établies selon une deuxième forme de réalisation,
  • - La figure 7 est une vue en coupe, montrant un connecteur dont les pièces de blindage sont établies selon une troisième forme de réalisation, et
  • - La figure 8 est une vue en coupe, montrant un connecteur dont les pièces de blindage sont établies selon une quatrième forme de réalisation.
The present invention will be better understood and other objects, details and advantages thereof will appear better in the following description, given by way of nonlimiting example and with reference to the appended drawings in which:
  • - Figure 1 is a perspective view showing an electrical connector established according to the invention for connecting a shielded multiconductor cable to an electrical assembly enclosed within a chassis, this connector being fitted with shielding parts established according to a first embodiment,
  • FIG. 2 is a perspective view, with exploded parts, showing the construction of the connector part which, in FIG. 1, is fixed to one of the ends of the shielded multiconductor cable,
  • FIG. 3 is a sectional view, along a plane passing through a line indicated by 3.3 in FIG. 1, showing the position occupied by the different parts of the connector when the two parts of this connector are uncoupled,
  • FIG. 4 is a sectional view, along a plane passing through a line indicated by 3.3 in FIG. 1, showing the position occupied by the different parts of the connector when the two parts of this connector are coupled,
  • FIG. 5 is a perspective view showing another connector produced according to the invention, but more particularly suitable for the case where the shielded multiconductor cable has a circular cross section,
  • FIG. 6 is a sectional view showing a connector, the shielding parts of which are established according to a second embodiment,
  • FIG. 7 is a sectional view showing a connector, the shielding parts of which are established according to a third embodiment, and
  • - Figure 8 is a sectional view showing a connector whose shielding parts are established according to a fourth embodiment.

Le connecteur qui est représenté sur la figure 1 comprend deux parties de connecteur 10 et 11 qui peuvent être accouplées l'une à l'autre d'une manière qui sera indiquée plus loin. La partie de connecteur 10 comprend un corps isolant 12, ayant la forme d'un parallélépipède dont la largeur e est relativement petite en comparaison de sa longueur L et de sa hauteur h. C'est ainsi que dans l'exemple décrit cette hauteur h est sensiblement égale à cinq fois la valeur de la largeur e. Ce corps 12 est réalisé en un matériau isolant présentant une haute tenue mécanique et un excellent isolement électrique pour les éléments de contact, tel que, par exemple la résine acétal vendue commercialement sous le nom de "Delrin" (marque déposée) ou encore le polycarbonate vendu commercialement sous le nom de "Makrolon" (marque déposée). Le corps isolant 12 est pourvu de logements 13, de forme cylindrique, qui, traversant la masse de ce corps, débouchent chacun sur les deux faces parallèles 14 et 15 de ce corps qui ont pour dimensions les valeurs e et h indiquées ci-dessus. Sur la figure 1, seule la face 14, qui constitue la face d'accouplement de la partie de connecteur 10 est visible, alors que la face 15, qui est située à l'arrière de la partie 10, ainsi qu'on peut le comprendre en se référant à la figure 3, n'est pas visible.The connector which is shown in Figure 1 comprises two connector parts 10 and 11 which can be coupled to each other in a manner which will be indicated later. The connector part 10 comprises an insulating body 12, having the shape of a parallelepiped whose width e is relatively small compared to its length L and its height h. Thus, in the example described, this height h is substantially equal to five times the value of the width e. This body 12 is made of an insulating material having high mechanical strength and excellent electrical insulation for the contact elements, such as, for example, the acetal resin sold commercially under the name of "Delrin" (registered trademark) or else polycarbonate. commercially sold under the name of "Makrolon" (registered trademark). The insulating body 12 is provided with housings 13, of cylindrical shape, which, passing through the mass of this body, each open onto the two parallel faces 14 and 15 of this body which have for dimensions the values e and h indicated above. In FIG. 1, only the face 14, which constitutes the coupling face of the connector part 10 is visible, while the face 15, which is located at the rear of the part 10, as can be seen. understand by referring to Figure 3, is not visible.

Dans chacun des logements 13 du corps isolant 12 est inséré un élément de contact du type de celui qui, sur la figure 3, est désigné par la référence 16. Dans l'exemple illustré par la figure 3, chacun des éléments de contact qui sont insérés dans ces logements 13 est du type femelle et présente une partie évidée 30. Ainsi qu'on le voit sur les figures 3 et 4, chaque élément de contact 16 est raccordé, à son extrémité située du côté de la face 15, à un fil conducteur gainé 17 qui établit la liaison électrique entre cet élément de contact et un appareillage électrique 18. On considèrera que cet appareillage électrique est normalement enfermé à l'intérieur d'un châssis métallique qui a été représenté en partie sur la figure 1, ce châssis, désigné par la référence 19, servant à la fois de support mécanique et de blindage pour cet appareillage.In each of the housings 13 of the insulating body 12 is inserted a contact element of the type which, in FIG. 3, is designated by the reference 16. In the example illustrated by FIG. 3, each of the contact elements which are inserted into these housings 13 is of the female type and has a recessed part 30. As can be seen in FIGS. 3 and 4, each contact element 16 is connected, at its end situated on the side of the face 15, to a sheathed conductive wire 17 which establishes the electrical connection between this contact element and an electrical apparatus 18. It will be considered that this electrical apparatus is normally enclosed inside a metal frame which has been partially represented in FIG. 1, this chassis, designated by the reference 19, serving both as a mechanical support and as a shield for this apparatus.

Le châssis 19, qui est de forme parallélépipédique, comporte des plaques d'enceinte qui assurent la délimitation de l'espace intérieur de ce châssis. L'une, 20, des quatre plaques d'enceinte verticales de ce châssis est percée d'une ouverture rectangulaire 21 en regard de laquelle est disposée la partie du connecteur 10, cette partie de connecteur étant placée à l'intérieur du châssis 19 et étant rendue solidaire de ce châssis grâce à des moyens de fixation de type connu (non représentés). La position de la partie de connecteur 10 est telle que sa face d'accouplement 14 vient affleurer ou dépasse légèrement le plan de la plaque d'enceinte 20, ce qui permet à la partie de connecteur 11 qui se trouve à l'extérieur du châssis 19 de pouvoir être raccordée à la partie de connecteur 10, d'une manière qui sera expliquée plus loin.The chassis 19, which is of parallelepipedal shape, comprises enclosure plates which ensure the delimitation of the interior space of this chassis. One, 20, of the four vertical enclosure plates of this chassis is pierced with a rectangular opening 21 opposite which is disposed the part of the connector 10, this connector part being placed inside the chassis 19 and being made integral with this chassis by means of fixing of known type (not shown). The position of the connector part 10 is such that its coupling face 14 is flush with or slightly exceeds the plane of the enclosure plate 20, which allows the connector part 11 which is located outside the chassis 19 to be able to be connected to the connector part 10, in a manner which will be explained later.

Ainsi qu'on peut le voir sur la figure 2, la partie de connecteur 11, qui est représentée de façon éclatée sur cette figure, comprend un corps isolant 22, de forme parallélépipédique, ayant sensiblement la même largeur e et la même hauteur h que celles du corps isolant 12 de la partie de connecteur 10, ce corps isolant 22 présentant ainsi deux faces ayant chacune pour dimensions e et h. L'une seulement, 27, de ces deux faces est visible sur la figure 2. L'autre face, désignée par la référence 23 sur la figure 3, constitue la face d'accouplement de la partie de connecteur 11, cette face d'accouplement 23 étant destinée à venir au contact, ou au moins à proximité immédiate, de la face d'accouplement 14 de la partie de connecteur 10 lorsque ces deux parties 10 et 11 sont accouplées l'une à l'autre. La figure 2 montre que le corps isolant 22 possède quatre faces 40, 41, 42 et 43 qui sont adjacentes à la face d'accouplement 23 et dont deux, 42 et 43, sont orientées verticalement sur la figure, chacune de ces deux faces ayant pour dimensions h et M, M désignant la longueur du corps isolant 22. Dans la position illustrée par la figure 2, les faces 40 et 41 sont, respectivement, la face supérieure et la face inférieure du corps isolant 22. Ce corps isolant 22 est réalisé en un matériau isolant similaire à celui qui constitue le corps isolant 12 de la partie de connecteur 10. Les figures 2 et 3 montrent que le corps isolant 22 est pourvu, sur sa face d'accouplement 23, de fiches isolantes creuses 24, en nombre égal à celui des logements 13 du corps isolant 12, ces fiches creuses étant destinées à venir s'engager chacune respectivement dans chacun de ces logements 13 lors de l'accouplement des parties 10 et 11. Chacune de ces fiches 24 est percée d'une cavité cylindrique 25 dans laquelle s'engage, lors de l'introduction de la fiche dans un logement 13, l'élément de contact 16 qui se trouve dans ce logement. Chaque cavité cylindrique 25 communique avec un logement 26 qui, à partir de la face d'accouplement 23, traverse la masse du corps isolant 22 pour déboucher sur la face 27 de ce corps qui est opposée à la face d'accouplement 23. Ce logement 26 sert à recevoir un élément de contact 28 se terminant par une tige 29 qui, s'étendant suivant l'axe de la cavité cylindrique 25, vient s'introduire dans la partie évidée 30 de l'élément de contact 16 lors de l'accouplemant des deux parties de connecteur 10 et 11. Chaque élément de contact 28 est raccordé, à son extrémité située à côté de la face 27, à chacun des fils conducteurs 31 d'un câble multiconducteur blindé 32 (figure 1), l'ensemble de ces fils conducteurs étant disposé à l'intérieur d'une gaine de blindage 33 réalisée en un matériau conducteur de l'électricité, cette gaine étant elle-même enfermée à l'intérieur d'une enveloppe 34 de matériau isolant. La partie de connecteur 11 qui est représentée sur la figure 2 comprend en outre deux capots isolants 35 et 36 qui, prévus démontables, peuvent être assemblés l'un à l'autre au moyen de vis 37. Ces deux capots 35 et 36, qui sont pourvus chacun d'une patte recourbée 38 pouvant être engagée dans un étrier 39 formé par moulage sur le corps isolant 22, sont destinés à protéger la portion terminale du câble multiconducteur blindé 32 sur laquelle a été fixée la partie de connecteur 11, en assurant, comme on peut le comprendre d'après la figure 3, un renforcement de la rigidité mécanique de cette portion terminale, ce qui réduit les risques de désolidarisation du câble 32 et de la partie de connecteur 11 lors des opérations répétées d'accouplement et de désaccouplement de cette partie avec la partie de connecteur 10. En outre, ces deux capots, qui sont disposés de part et d'autre de cette portion terminale du câble 32, comme on le voit sur la figure 3, empêchent, lorsqu'ils sont assemblés l'un à l'autre, que l'extrémité dénudée de la gaine de blindage 33 de ce câble ne subisse, lors des manipulations de ce câble, des déformations capables d'entraîner une mise en contact involontaire des fils conducteurs 31 les uns avec les autres par l'intermédiaire de cette gaine 33.As can be seen in FIG. 2, the connector part 11, which is exploded in this figure, comprises an insulating body 22, of parallelepiped shape, having substantially the same width e and the same height h as those of the insulating body 12 of the connector part 10, this insulating body 22 thus having two faces having each for dimensions e and h. Only one, 27, of these two faces is visible in FIG. 2. The other face, designated by the reference 23 in FIG. 3, constitutes the coupling face of the connector part 11, this face of coupling 23 being intended to come into contact, or at least in the immediate vicinity, of the coupling face 14 of the connector part 10 when these two parts 10 and 11 are coupled to one another. FIG. 2 shows that the insulating body 22 has four faces 40, 41, 42 and 43 which are adjacent to the coupling face 23 and two of which, 42 and 43, are oriented vertically in the figure, each of these two faces having for dimensions h and M, M denoting the length of the insulating body 22. In the position illustrated by FIG. 2, the faces 40 and 41 are, respectively, the upper face and the underside of the insulating body 22. This insulating body 22 is made of an insulating material similar to that which constitutes the insulating body 12 of the connector part 10. FIGS. 2 and 3 show that the insulating body 22 is provided, on its coupling face 23, with hollow insulating plugs 24, in number equal to that of the housings 13 of the insulating body 12, these hollow plugs being intended to engage each one respectively in each of these housings 13 during the coupling of the parts 10 and 11. Each of these plugs 24 is pierced with a cylindrical cavity eu 25 in which engages, during the introduction of the plug into a housing 13, the contact element 16 which is located in this housing. Each cylindrical cavity 25 communicates with a housing 26 which, from the coupling face 23, crosses the mass of the insulating body 22 to open on the face 27 of this body which is opposite to the coupling face 23. This housing 26 is used to receive a contact element 28 ending in a rod 29 which, extending along the axis of the cylindrical cavity 25, is introduced into the recessed part 30 of the contact element 16 during the coupling the two connector parts 10 and 11. Each contact element 28 is connected, at its end situated next to the face 27, to each of the conducting wires 31 of a shielded multiconductor cable 32 (FIG. 1), the assembly of these conductive wires being disposed inside a shielding sheath 33 made of an electrically conductive material, this sheath itself being enclosed within an envelope 34 of insulating material. The connector part 11 which is shown in FIG. 2 further comprises two insulating covers 35 and 36 which, provided removable, can be assembled to one another by means of screws 37. These two covers 35 and 36, which are each provided with a curved tab 38 which can be engaged in a stirrup 39 formed by molding on the insulating body 22, are intended to protect the end portion of the shielded multiconductor cable 32 on which the connector part 11, ensuring, as can be understood from FIG. 3, a reinforcement of the mechanical rigidity of this terminal portion, which reduces the risks of separation of the cable 32 and the connector part 11 during repeated operations of coupling and uncoupling of this part with the connector part 10. In addition, these two covers, which are arranged on either side of this terminal portion of the cable 32, as seen in Figure 3 , prevent, when assembled together, that the stripped end of the shielding sheath 33 of this cable does not undergo, during handling of this cable, deformations capable of causing involuntary contacting of the conducting wires 31 with each other by means of this sheath 33.

Les figures 3 et 4 permettent de comprendre que, lors d'une opération d'accouplement des deux parties de connecteur 10 et 11, chacune des fiches creuses 24 de la partie 11 vient s'engager respectivement dans l'espace libre de chacun des logements 13 de la partie 10, c'est-à-dire dans la région du logement qui n'est pas occupée par l'élément de contact 16 qui se trouve dans ce logement, tandis que, simultanément, chacune des tiges 29 pénètre respectivement dans chacune des parties évidées 30 des éléments de contact 16. Afin de réduire l'effort nécessaire à cette opération, tout en assurant un bon contact électrique entre chacune de ces tiges 29 et chacun de ces éléments de contact 16, les logements 13, les fiches creuses 24 et les éléments de contact 16 sont dimensionnés de manière à ménager un faible jeu entre chaque logement et chaque fiche creuse introduite dans ce logement et entre chaque fiche creuse et chaque élément de contact 16 introduit dns cette fiche creuse. Au contraire, les parties évidées 30 et les tiges 29 sont réalisées de telle sorte que l'introduction d'une tige 29 dans une partie évidée 30 s'effectue avec un léger frottement des surfaces de ces pièces qui sont mises en contact. On peut observer, en comparant les figures 3 et 4, que, à la fin de l'opération d'accouplement des deux parties de connecteur 10 et 11, les faces d'accouplement 14 et 23 de ces deux parties se trouvent à proximité immédiate l'une de l'autre.Figures 3 and 4 allow to understand that, during a coupling operation of the two connector parts 10 and 11, each of the hollow plugs 24 of the part 11 engages respectively in the free space of each of the housings 13 of part 10, that is to say in the region of the housing which is not occupied by the contact element 16 which is in this housing, while, simultaneously, each of the rods 29 respectively penetrates into each of the recessed parts 30 of the contact elements 16. In order to reduce the effort necessary for this operation, while ensuring good electrical contact between each of these rods 29 and each of these contact elements 16, the housings 13, the plugs 24 and the contact elements 16 are dimensioned so as to provide a small clearance between each housing and each hollow plug inserted in this housing and between each hollow plug and each contact element 16 introduced in this fi che hollow. On the contrary, the hollowed out parts 30 and the rods 29 are produced in such a way that the introduction of a rod 29 into a hollowed out part 30 takes place with a slight friction of the surfaces of these parts which are brought into contact. It can be observed, by comparing FIGS. 3 and 4, that, at the end of the coupling operation of the two connector parts 10 and 11, the coupling faces 14 and 23 of these two parts are in the immediate vicinity one from the other.

Afin d'éviter un désaccouplement involontaire des deux parties de connecteur 10 et 11, par exemple sous l'action des vibrations engendrées, au cours du fonctionnement, par l'appareillage 18 qui est enfermé à l'intérieur du châssis 19, ces deux parties sont munies d'un dispositif de verrouillage constitué, dans l'exemple décrit, par une patte d'accrochage 45 (figure 1) qui, réalisée en un matériau similaire à celui constituant le corps isolant 22, est fixée, de manière flexible, sur la face supérieure 40 de ce corps 22, cette patte 45 étant pourvue d'une ouverture 46 dans laquelle vient s'engager, lorsque les deux parties de connecteur 10 et 11 sont accouplées l'une à l'autre, un ergot 47 formé par moulage sur la face supérieure de la partie de connecteur 10. La patte 45 est solidaire d'une languette d'actionnement 48 qui, lorsque les deux parties de connecteur 10 et 11 sont accouplées l'une à l'autre, permet à l'opérateur de soulever la patte 45 pour dégager l'ergot 47 de l'ouverture 46 et libérer ainsi la partie de connecteur 11 afin que celle-ci puisse être ensuite désaccouplée de la partie 10. Un autre dispositif de verrouillage, analogue à celui qui vient d'être décrit, est également prévu sur la face inférieure 41 de la partie de connecteur 11.In order to avoid involuntary uncoupling of the two connector parts 10 and 11, for example under the action of vibrations generated, during operation, by the apparatus 18 which is enclosed inside the chassis 19, these two parts are provided with a locking device constituted, in the example described, by a hooking lug 45 (FIG. 1) which, made of a material similar to that constituting the insulating body 22, is fixed, in a flexible manner, to the upper face 40 of this body 22, this tab 45 being provided with an opening 46 into which engages, when the two connector parts 10 and 11 are coupled to each other, a lug 47 formed by molding on the upper face of the connector part 10. The tab 45 is integral with an actuating tongue 48 which, when the two connector parts 10 and 11 are coupled to each other, allows the operator to lift tab 45 to release the lug 47 of the opening 46 and thus free the connector part 11 so that it can then be uncoupled from the part 10. Another locking device, similar to that which has just been described, is also provided on the underside 41 of the connector part 11.

Les figures 1 et 2 montrent encore que le face latérale 42 du corps isolant 22 de la seconde partie de connecteur est revêtue d'une feuille 50 qui, réalisée en un matériau conducteur de l'électricité, est munie d'un évidement 51 dans lequel peut être engagé, lorsque le capot 35 est démonté, l'étrier 39 qui fait saillie sur cette face 42. L'évidement 51 est dimensionné de telle sorte que l'engagement de l'étrier 39 dans cet évidement s'effectue avec un très faible jeu, de sorte que la feuille 50 ne peut se déplacer sur la face 42 sur laquelle elle a été appliquée. Par ailleurs, cette feuille 50 est choisie suffisamment mince pour que, une fois appliquée sur la face 42, elle ne gêne pas l'introduction, dans l'étrier 39 de cette face, de la patte recourbée 38 du capot 35, cette introduction, qui a pour but d'assurer la solidarisation du capot 35 avec le corps isolant 22, ayant en outre pour effet d'empêcher le dégagement de la feuille 50 de cet étrier. La feuille 50, qui a été ainsi positionnée sur la face latérale 42, présente une partie libre 52 qui, à partir de la face 27 du corps isolant 22, se prolonge au-delà de ce corps, c'est-à-dire à droite du corps 22 représenté sur la figure 3, de manière à prendre place, dans l'espace intérieur compris entre les deux capots isolants 35 et 36, contre la face interne du capot 35. Cette partie libre 52 est connectée électriquement à la gaine de blindage 33 du câble 32, cette opération de connexion, réalisée par soudure, étant effectuée, soit après que la feuille 50 ait été engagée, par son évidement 51, dans l'étrier 39 de la face 42, soit, au contraire, avant que cette feuille ne soit engagée dans cet évidement. La feuille 50 qui a été engagée dans cet étrier présente en outre une partie flexible 53 qui, comme on le voit sur la figure 3, s'étend le long du corps isolant 22, vers la gauche de celui-ci, c'est-à-dire sensiblement en direction de la première partie de connecteur 10, lorsque la seconde partie de connecteur 11 est positionnée en vue d'être accouplée à cette première partie de connecteur. Dans la forme de réalisation illustrée par la figure 3, cette partie flexible 53 présente, au voisinage de son extrémité 54, une portion terminale 55 qui a été légèrement pliée, dans un sens ayant pour effet d'éloigner cette extrémité 54 du plan P de la face latérale 42, cette portion terminale 55 formant avec ce plan P un angle B̂ inférieur à quatre-vingts dix degrés. Dans un mode de réalisation plus particulièrement avantageux, cet angle B̂ a une valeur pratiquement égale à quarante cinq degrés. Par ailleurs, comme on peut le comprendre en se référant aux figures 3 et 4, la partie flexible 53 a une longueur telle que, lorsque la partie de connecteur 11 est déplacée pour être accouplée à la partie de connecteur 10, la portion terminale 55 de cette partie flexible arrive au contact de la plaque d'enceinte 20 un peu avant que l'opération d'accouplement des deux parties de connecteur ne soit terminée. Au cours de ce déplacement, au fur et à mesure que les faces d'accouplement 14 et 23 des deux parties de connecteur sont rapprochées l'une de l'autre, cette portion terminale 55 est contrainte, après avoir contacté la plaque d'enceinte 20, de glisser sur la face externe de cette plaque, dans un sens tendant à l'éloigner de l'ouverture 21, ce qui a pour effet de faire fléchir la partie flexible 53, comme on peut le voir sur la figure 4. En conséquence, à la fin de l'opération d'accouplement, l'extrémité 54 de la partie flexible 53 se trouve appliquée sur la plaque d'enceinte 20 avec une force dont l'intensité est d'autant plus importante que la flexion subie par cette partie flexible 53 est plus grande. On a trouvé, en désignant par a la longueur, par b la largeur et par e l'épaisseur de cette partie flexible 53,que lorsque cette partie flexible subissait une flexion telle que son extrémité 54 se trouvait déplacée d'une distance f par rapport à sa position d'origine, la force G avec laquelle cette extrémité était appliquée sur la plaque d'enceinte 20 était donnée sensiblement par l'expression :

Figure imgb0001
E représentant la valeur du module d'élasticité du matériau constituant la feuille 50 et  l'angle (indiqué sur la figure 4) que forme la face latérale 42 avec le plan tangent Q àla portion 56 de la partie flexible 53 qui est contiguë à la portion terminale 55 de cette partie flexible. Dans le mode de réalisation qui est illustré sur la figure 4, cet angle  a une valeur voisine d'une vingtaine de degrés, de sorte que la valeur de sin  est pratiquement égale à 0,4. La force G avec laquelle la partie flexible de la feuille 50 est appliquée sur la plaque d'enceinte 20 doit avoir une valeur suffisante pour permettre d'assurer un bon contact entre cette feuille 50 et cette plaque 20. Cependant il convient que cette force ne dépasse pas une certaine valeur limite au-dessus de laquelle l'opération d'accouplement des deux parties de connecteur 10 et 11 se révèlerait difficile pour l'opérateur. Afin de répondre à ces conditions, on s'arrange pour que la valeur de cette force G, exprimée en newtons, reste, préférentiellement, comprise entre 0,02b et 0,12b, b représentant la dimension, exprimée en millimètres, de l'extrémité 54 de cette feuille. C'est ainsi que, dans l'exemple décrit, cette feuille 50 est réalisée en acier et présente ainsi un module d'élasticité pratiquement égal à 25 000 daN/mm². En outre, cette feuille a une épaisseur pratiquement égale à 0,1 mm et une largeur b (figure 2) pratiquement égale à 45 mm, tandis que la partie flexible 53 de cette feuille a une longueur pratiquement égale à 16 mm. Il faut également signaler que, dans l'exemple qui est illustré par la figure 4, le déplacement f subi par l'extrémité 54 de la partie flexible 53 est sensiblement égal à 4,5 mm. Dans ces conditions, la force avec laquelle cette extrémité est appliquée sur la plaque d'enceinte 20 a pour valeur :
Figure imgb0002
 soit pratiquement : G = 1,5 Newton.Figures 1 and 2 also show that the side face 42 of the insulating body 22 of the second connector portion is coated with a sheet 50 which, made of an electrically conductive material, is provided with a recess 51 in which can be engaged, when the cover 35 is removed, the stirrup 39 which protrudes on this face 42. The recess 51 is dimensioned such that the engagement of the stirrup 39 in this recess is effected with a very low clearance, so that the sheet 50 cannot move on the face 42 on which it has been applied. Furthermore, this sheet 50 is chosen to be thin enough so that, once applied to the face 42, it does not hinder the introduction, into the stirrup 39 of this face, of the curved tab 38 of the cover 35, this introduction, which aims to secure the cover 35 with the insulating body 22, further having the effect of preventing the release of the sheet 50 of this stirrup. The sheet 50, which has thus been positioned on the lateral face 42, has a free part 52 which, from the face 27 of the insulating body 22, extends beyond this body, that is to say at right of the body 22 shown in FIG. 3, so as to take place, in the interior space between the two insulating covers 35 and 36, against the internal face of the cover 35. This free part 52 is electrically connected to the shielding sheath 33 of the cable 32, this connection operation, carried out by welding, being carried out, either after the sheet 50 has been engaged, by its recess 51, in the stirrup 39 of the face 42, or, on the contrary, before this sheet is engaged in this recess. The sheet 50 which has been engaged in this stirrup also has a flexible part 53 which, as can be seen in FIG. 3, extends along the insulating body 22, to the left of it, that is to say substantially in the direction of the first connector part 10, when the second connector part 11 is positioned with a view to being coupled to this first connector part. In the embodiment illustrated in FIG. 3, this flexible part 53 has, near its end 54, an end portion 55 which has been slightly bent, in a direction having the effect of moving this end 54 away from the plane P of the lateral face 42, this terminal portion 55 forming with this plane P an angle B̂ less than eighty ten degrees. In a more particularly advantageous embodiment, this angle B̂ has a value practically equal to forty five degrees. Furthermore, as can be understood with reference to FIGS. 3 and 4, the flexible part 53 has a length such that, when the connector part 11 is moved to be coupled to the connector part 10, the end portion 55 of this flexible part comes into contact with the enclosure plate 20 a little before the coupling operation of the two connector parts is completed. During this movement, as the coupling faces 14 and 23 of the two connector parts are brought closer to each other, this end portion 55 is constrained, after having contacted the enclosure plate 20, to slide on the external face of this plate, in a direction tending to move it away from the opening 21, which has the effect of flexing the flexible part 53, as can be seen in FIG. 4. In Consequently, at the end of the coupling operation, the end 54 of the flexible part 53 is applied to the enclosure plate 20 with a force whose intensity is all the more important as the bending undergone by this flexible part 53 is larger. It has been found, by designating by a the length, by b the width and by e the thickness of this flexible part 53, that when this flexible part underwent a bending such that its end 54 was displaced by a distance f relative to at its original position, the force G with which this end was applied to the speaker plate 20 was given substantially by the expression:
Figure imgb0001
 E representing the value of the modulus of elasticity of the material constituting the sheet 50 and the angle (indicated in FIG. 4) that forms the lateral face 42 with the tangent plane Q to the portion 56 of the flexible part 53 which is contiguous with the terminal portion 55 of this flexible part. In the embodiment which is illustrated in FIG. 4, this angle a has a value close to around twenty degrees, so that the value of sin est is practically equal to 0.4. The force G with which the flexible part of the sheet 50 is applied to the enclosure plate 20 must have a value sufficient to make it possible to ensure good contact between this sheet 50 and this plate 20. However, this force should not not exceed a certain limit value above which the coupling operation of the two connector parts 10 and 11 would prove difficult for the operator. In order to meet these conditions, it is arranged that the value of this force G, expressed in newtons, remains, preferably, between 0.02b and 0.12b, b representing the dimension, expressed in millimeters, of the end 54 of this sheet. Thus, in the example described, this sheet 50 is made of steel and thus has a modulus of elasticity practically equal to 25,000 daN / mm². In addition, this sheet has a thickness practically equal to 0.1 mm and a width b (FIG. 2) practically equal to 45 mm, while the flexible part 53 of this sheet has a length practically equal to 16 mm. It should also be noted that, in the example which is illustrated in FIG. 4, the displacement f undergone by the end 54 of the flexible part 53 is substantially equal to 4.5 mm. Under these conditions, the force with which this end is applied to the enclosure plate 20 has the value:
Figure imgb0002
 or practically: G = 1.5 Newton.

On peut observer que, avec une force de cette valeur, le contact entre la feuille 50 et la plaque d'enceinte 20 est bien assuré, et cela d'autant plus que le frottement exercé par l'extrémité 54 de cette feuille, lors des opérations d'accouplement et de désaccouplement des deux parties de connecteur 10 et 11 a pour effet de nettoyer la zone de cette plaque 20 qui est soumise à ce frottement, en la débarassant des traces de matière isolante qui peuvent se former sur cette zone, ces traces pouvant être, par exemple, des traces d'oxydes. Ainsi, la feuille 50 réalise une excellente continuité entre la gaine de blindage 33 du câble 32 et la plaque d'enceinte 20 qui participe au blindage du châssis métallique 19. Par ailleurs, comme on peut le voir sur la figure 1, la portion terminale de la feuille 50 peut être pourvue d'échancrures 57 qui, pratiquées à intervalles réguliers et orientées suivant une direction perpendiculaire à l'extrémité de cette portion terminale, permettent une meilleure répartition de la force de contact tout le long de cette extrémité.It can be observed that, with a force of this value, the contact between the sheet 50 and the enclosure plate 20 is well ensured, and this all the more so as the friction exerted by the end 54 of this sheet, during operations of coupling and uncoupling of the two connector parts 10 and 11 has the effect of cleaning the zone of this plate 20 which is subjected to this friction, by freeing it of traces of insulating material which can form on this zone, these traces which may be, for example, traces of oxides. Thus, the sheet 50 achieves excellent continuity between the shielding sheath 33 of the cable 32 and the enclosure plate 20 which participates in the shielding of the metal frame 19. Furthermore, as can be seen in FIG. 1, the terminal portion of the sheet 50 can be provided with notches 57 which, practiced at regular intervals and oriented in a direction perpendicular to the end of this terminal portion, allow a better distribution of the contact force along this end.

La feuille conductrice 50 peut naturellement être réalisée en un matériau conducteur, autre que l'acier, capable de subir de petites déformations élastiques et de reprendre sa forme initiale après la disparition de la force de flexion. C'est ainsi, par exemple, que cette feuille pourrait être réalisée en un alliage de cuivre au béryllium. Dans ce cas, l'épaisseur de cette feuille est pratiquement égale à 0,2 mm.The conductive sheet 50 can naturally be made of a conductive material, other than steel, capable of undergoing small elastic deformations and of resuming its initial shape after the disappearance of the bending force. Thus, for example, this sheet could be made of a copper alloy with beryllium. In this case, the thickness of this sheet is practically equal to 0.2 mm.

Afin d'améliorer encore la continuité du blindage entre la gaine de blindage 33 du câble 32 et la plaque d'enceinte 20, la face latérale 43 du corps isolant 22 est également munie, comme on le voit sur les figures 2, 3 et 4, d'une feuille de matériau conducteur 60, cette feuille étant analogue à la feuille 50 et étant montée de manière similaire à celle de cette dernière feuille.In order to further improve the continuity of the shielding between the shielding sheath 33 of the cable 32 and the enclosure plate 20, the lateral face 43 of the insulating body 22 is also provided, as can be seen in FIGS. 2, 3 and 4 , of a sheet of conductive material 60, this sheet being analogous to the sheet 50 and being mounted in a similar manner to that of the latter sheet.

Il est utile de signaler que, lorsque les deux parties de connecteur 10 et 11 sont accouplées, la partie de connecteur 11 a tendance à être écartée de la plaque d'enceinte 20 sous l'action des forces qui s'exercent sur les portions terminales des feuilles 50 et 60. Cependant, étant donné que ces deux parties de connecteur sont rendues solidaires l'une de l'autre par l'un au moins des dispositifs de verrouillage qui ont été décrits plus haut, ces deux parties ne risquent pas de se désacoupler aussi longtemps que ces dispositifs de verrouillage n'ont pas été débloqués par l'opérateur.It is useful to note that, when the two connector parts 10 and 11 are coupled, the connector part 11 tends to be moved away from the enclosure plate 20 under the action of the forces exerted on the terminal portions sheets 50 and 60. However, since these two connector parts are made integral with one another by at least one of the locking devices which have been described above, these two parts are not likely to decouple for as long that these locking devices have not been released by the operator.

Dans les modes de réalisation qui sont représentés sur les figures 1 et 2, les faces supérieure 40 et inférieure 41 du corps isolant 22 ont chacune une largeur e qui est relativement petite, cette largeur étant voisine de cinq millimètres dans l'exemple décrit. Par suite, la surface de chacune de ces deux faces est relativement faible et, de ce fait, il n'est pas nécessaire de munir ces faces de feuilles de matériau conducteur, les feuilles 50 et 60 étant en effet suffisantes pour assurer la continuité du blindage de protection des circuits électriques contre les effets des rayonnements électromagnétiques externes. Au contraire, dans d'autres modes de réalisation, tels que celui qui est illustré sur la figure 5 par exemple, le corps isolant 22 peut avoir une forme dans laquelle les quatre faces 40, 41, 42 et 43 qui sont adjacentes à la face d'accouplement de ce corps ont chacune des dimensions non négligeables, c'est-à-dire au moins égales à quinze millimètres par exemple. Dans ce cas, pour obtenir une protection efficace contre les effets perturbateurs des rayonnements électromagnétiques externes, il est nécessaire de munir chacune de ces quatre faces d'une feuille de matériau conducteur, certaines de ces feuilles, telle que celle qui est désignée par la référence 80 sur la figure 5, pouvant être découpées de manière à laisser à découvert les dispositifs de verrouillage dont sont pourvues les faces sur lesquelles ces feuilles sont disposées. Le connecteur électrique qui est représenté sur la figure 5 est plus particulièrement destiné à assurer le raccordement d'un câble multiconducteur blindé présentant une section circulaire.In the embodiments which are represented in FIGS. 1 and 2, the upper 40 and lower 41 faces of the insulating body 22 each have a width e which is relatively small, this width being close to five millimeters in the example described. Consequently, the surface of each of these two faces is relatively small and, therefore, it is not necessary to provide these faces with sheets of conductive material, the sheets 50 and 60 being in fact sufficient to ensure the continuity of the shielding of electrical circuits against the effects of external electromagnetic radiation. On the contrary, in other embodiments, such as that which is illustrated in FIG. 5 for example, the insulating body 22 may have a shape in which the four faces 40, 41, 42 and 43 which are adjacent to the face coupling of this body each have non-negligible dimensions, that is to say at least equal to fifteen millimeters for example. In this case, to obtain effective protection against the disturbing effects of external electromagnetic radiation, it is necessary to provide each of these four faces with a sheet of conductive material, some of these sheets, such as that which is designated by the reference 80 in Figure 5, which can be cut so as to leave uncovered the locking devices which are provided on the faces on which these sheets are arranged. The electrical connector which is shown in FIG. 5 is more particularly intended for ensuring the connection of a shielded multiconductor cable having a circular section.

Il faut signaler encore que la portion terminale 55 de chacune des feuilles de matériau conducteur peut avoir une forme différente de celle qui est représentée sur les figures 1 à 5. C'est ainsi que, dans la forme de réalisation qui est illustrée sur la figure 6, la feuille 50 qui est montée sur la face 42 de la partie de connecteur 11 comporte, au voisinage de son extrémité 54, une portion terminale 55 qui est repliée de manière que sa section droite ait pratiquement la forme d'un U, ce U présentant deux branches 70 et 71 orientées sensiblement suivant une direction parallèle au plan de la face 42, ces deux branches étant réunies par une base 72 qui, lorsque les deux parties de connecteur 10 et 11 sont accouplées vient au contact de la plaque d'enceinte 20.It should also be noted that the terminal portion 55 of each of the sheets of conductive material may have a shape different from that which is shown in FIGS. 1 to 5. Thus, in the embodiment which is illustrated in the figure 6, the sheet 50 which is mounted on the face 42 of the connector part 11 comprises, near its end 54, an end portion 55 which is folded back so that its cross section has practically the shape of a U, this U having two branches 70 and 71 oriented substantially in a direction parallel to the plane of the face 42, these two branches being joined by a base 72 which, when the two connector parts 10 and 11 are coupled comes into contact with the plate pregnant 20.

Dans la forme de réalisation qui est illustrée sur la figure 7, la portion terminale 55 de la feuille 50 présente une section droite qui a également la forme d'un U, mais avec cette différnce que les deux branches 70 et 71 de ce U sont orientées sensiblement suivant une direction perpendiculaire au plan de la face 42. On peut voir, sur la figure 7, que la branche 70, qui est la plus éloignée de l'extrémité 54 de la feuille 50, est en effet pliée pratiquement à quatre-vingts dix degrés par rapport au restant de cette feuille, et que la branche 71, qui est parallèle à cette branche 70, vient au contact de la face externe de la plaque d'enceinte 20 lorsque les deux parties de connecteur 10 et 11 sont accouplées.In the embodiment which is illustrated in FIG. 7, the terminal portion 55 of the sheet 50 has a cross section which also has the shape of a U, but with this difference that the two branches 70 and 71 of this U are oriented substantially in a direction perpendicular to the plane of the face 42. It can be seen, in FIG. 7, that the branch 70, which is the furthest from the end 54 of the sheet 50, is in fact folded almost four- twenty-ten degrees relative to the rest of this sheet, and that the branch 71, which is parallel to this branch 70, comes into contact with the external face of the enclosure plate 20 when the two connector parts 10 and 11 are coupled .

Dans la forme de réalisation qui est illustrée sur la figure 8, la portion terminale 55 de la feuille 50 présente une section droite qui a sensiblement la forme d'un V, ce V présentant deux branches 70 et 71 qui forment entre elles un angle Ĉ dont la valeur est comprise entre 60° et 75°. En outre, la branche 71 qui est la plus proche de l'extrémité 54 de cette feuille 50, forme avec la plaque d'enceinte 20, lorsque les deux parties de connecteur 10 et 11 sont accouplées, un angle D̂ dont la valeur est comprise entre 15° et 25°.In the embodiment which is illustrated in FIG. 8, the terminal portion 55 of the sheet 50 has a cross section which has substantially the shape of a V, this V having two branches 70 and 71 which form an angle Ĉ between them whose value is between 60 ° and 75 °. In addition, the branch 71 which is closest to the end 54 of this sheet 50, forms with the enclosure plate 20, when the two connector parts 10 and 11 are coupled, an angle D̂ whose value is included between 15 ° and 25 °.

Bien entendu, l'invention n'est nullement limitée aux modes de mise en oeuvre décrits et illustrés qui n'ont été donnés qu'à titre d'exemple. Au contraire, elle comprend tous les moyens constituant des équivalents techniques de ceux décrits et illustrés, considérés isolément ou en combinaison, et mis en oeuvre dans le cadre des revendications qui suivent.Of course, the invention is in no way limited to the embodiments described and illustrated which have been given only by way of example. On the contrary, it includes all the means constituting technical equivalents of those described and illustrated, considered in isolation or in combination, and used in the context of the claims which follow.

Claims (10)

1. Connecteur électrique permettant à un câble multiconducteur (32) pourvu d'une gaine de blindage (33) d'être raccordé électriquement à un ensemble électrique (18) placé à l'intérieur d'un châssis métallique (19), ce connectur étant constitué, d'une part d'une première partie de connecteur (10) comprenant un corps isolant (12) pourvu d'éléments de contact d'un premier type (16) aptes à être reliés électriquement audit ensemble électrique (18), ce corps étant destiné à être solidarisé avec ledit châssis, à l'intérieur de celui-ci, en regard d'une ouverture (21) pratiquée dans une plaque d'enceinte (20) de ce châssis, d'autre part d'une seconde partie de connecteur (11) comprenant un corps isolant (22) présentant une face d'accouplement (23) destinée à être amenée au moins à proximité du corps isolant (12) de ladite première partie lorsque ces deux parties (10 et 11) sont accouplées l'une à l'autre, le corps isolant (22) de cette seconde partie présentant en outre des faces (40, 41, 42, 43) adjacentes à ladite face d'accouplement (23), ce dernier corps isolant (22) étant pourvu de logements (26) dans lesquels sont insérés des éléments de contact d'un second type (28) prévus pour être connectés auxdits éléments de contact du premier type (16) lors de l'accouplement des deux parties de connecteur (10 et 11), ces éléments de contact de second type (28) étant reliés électriquement aux conducteurs (31) dudit câble blindé (32), ledit connecteur étant caractérisé en ce que le corps isolant (22) de ladite seconde partie de connecteur est muni, sur l'une (42) au moins desdites faces adjacentes, d'une feuille (50) de matériau conducteur reliée à la gaine de blindage (33) dudit câble blindé, cette feuille présentant une partie flexible (53) s'étendant sensiblement vers ladite première partie de connecteur (10) lorsque celle-ci est accouplée à ladite seconde partie de connecteur (11), cette partie flexible (53) ayant une longueur telle que, lorsque ces deux parties de connecteur sont accouplées l'une à l'autre, elle est apte à se trouver en contact élastique avec ladite plaque d'enceinte (20) et à assurer ainsi la continuité du blindage de protection des circuits électriques contre les effets des rayonnements électromagnétiques externes.1. Electrical connector allowing a multiconductor cable (32) provided with a shielding sheath (33) to be electrically connected to an electrical assembly (18) placed inside a metal frame (19), this connector being constituted, on the one hand, by a first connector part (10) comprising an insulating body (12) provided with contact elements of a first type (16) capable of being electrically connected to said electrical assembly (18), this body being intended to be secured to said chassis, inside of it, opposite an opening (21) formed in an enclosure plate (20) of this chassis, on the other hand of a second connector part (11) comprising an insulating body (22) having a coupling face (23) intended to be brought at least close to the insulating body (12) of said first part when these two parts (10 and 11) are coupled to each other, the insulating body (22) of this second part further having faces (40, 41, 42, 43) adjacent to said coupling face (23), the latter insulating body (22) being provided with housings (26) into which are inserted contact elements of a second type (28) provided for being connected to said first type contact elements (16) when the two connector parts (10 and 11) are coupled, these second type contact elements (28) being electrically connected to the conductors (31) of said shielded cable (32), said connector being characterized in that the insulating body (22) of said second connector part is provided, on at least one (42) of said adjacent faces, with a sheet ( 50) of conductive material connected to the shielding sheath (33) of said shielded cable, this sheet having a flexible part (53) extending substantially towards said first connector part (10) when the latter is coupled to said second part connector (11), this flexible part e (53) having a length such that, when these two connector parts are coupled to each other, it is capable of being in elastic contact with said enclosure plate (20) and thus ensuring continuity protective shielding of electrical circuits against the effects of external electromagnetic radiation. 2. Connecteur électrique selon revendication 1, caractérisé en ce que la partie flexible (53) de la feuille de matériau conducteur (50) présente, au voisinage de son extrémité (54), une portion terminale (55) qui est pliée, par rapport au restant de cette partie flexible, dans un sens ayant pour effet de tendre à éloigner cette extrémité (54) du plan (P) de la face (42) sur laquelle est fixée cette feuille (50).2. An electrical connector according to claim 1, characterized in that the flexible part (53) of the sheet of conductive material (50) has, near its end (54), an end portion (55) which is folded, relative to the remainder of this flexible part, in a direction having the effect of tending to move this end (54) away from the plane (P) of the face (42) on which this sheet (50) is fixed. 3. Connecteur électrique selon revendication 2, caractérisé en ce que, lorsque les deux parties de connecteur (10 et 11) sont désaccouplées, la portion terminale (55) de la partie flexible (53) de la feuille de matériau conducteur (50) forme, avec le plan (P) de la face (42) sur laquelle est fixée cette feuille, un angle (B̂) dont la valeur est pratiquement égale à quarante cinq degrés.3. Electrical connector according to claim 2, characterized in that, when the two connector parts (10 and 11) are uncoupled, the end portion (55) of the flexible part (53) of the sheet of conductive material (50) forms , with the plane (P) of the face (42) on which this sheet is fixed, an angle (B̂) whose value is practically equal to forty five degrees. 4. Connecteur électrique selon l'une quelconque des revendications 2 et 3, caractérisé en ce que la partie flexible (53) de la feuille de matériau conducteur (50) présente une portion (56) qui est contiguë à la portion terminale (55) de cette partie flexible et qui, lorsque les deux parties de connecteur (10 et 11) sont accouplées, forme, avec la face (42) sur laquelle est fixée cette feuille (50), un angle (Â) dont la valeur est voisine d'une vingtaine de degrés.4. An electrical connector according to any one of claims 2 and 3, characterized in that the flexible part (53) of the sheet of conductive material (50) has a portion (56) which is contiguous with the end portion (55) of this flexible part and which, when the two connector parts (10 and 11) are coupled, forms, with the face (42) on which this sheet (50) is fixed, an angle (Â) whose value is close to d 'about twenty degrees. 5. Connecteur électrique selon revendication 1, caractérisé en ce que la partie flexible (53) de la feuille de matériau conducteur (50) présente, au voisinage de son extrémité (54), une portion terminale (55) qui est repliée de manière que sa section droite ait pratiquement la forme d'un U dont la base (72) vient au contact de la plaque d'enceinte (20) lorsque les deux parties de connecteur (10 et 11) sont accouplées.5. Electrical connector according to claim 1, characterized in that the flexible part (53) of the sheet of conductive material (50) has, near its end (54), an end portion (55) which is folded so that its cross section has practically the shape of a U, the base (72) of which comes into contact with the enclosure plate (20) when the two connector parts (10 and 11) are coupled. 6. Connecteur électrique selon revendication 1, caractérisé en ce que la partie flexible (53) de la feuille de matériau conducteur (50) présente, au voisinage de son extrémité (54), une portion terminale (55) qui est repliée de manière que sa section droite ait pratiquement la forme d'un U dont l'une (71) des branches vient s'appliquer sur la plaque d'enceinte (20) lorsque les deux parties de connecteur (10 et 11) sont accouplées.6. An electrical connector according to claim 1, characterized in that the flexible part (53) of the sheet of conductive material (50) has, near its end (54), an end portion (55) which is folded so that its cross section has practically the shape of a U of which one (71) of the branches is applied to the enclosure plate (20) when the two connector parts (10 and 11) are coupled. 7. Connecteur électrique selon revendication 1, caractérisé en ce que la partie flexible (53) de la feuille de matériau conducteur (50) présente, au voisinage de son extrémité (54), une portion terminale (55) qui est repliée de manière que sa section droite ait pratiquement la forme d'un V dont les branches (70, 71) forment entre elles un angle (Ĉ) dont la valeur est comprise entre 60° et 75°, la branche (71) la plus proche de ladite extrémité (54) formant avec la plaque d'enceinte (20), lorsque les deux parties de connecteur (10 et 11) sont accouplées, un angle (D̂) dont la valeur est comprise entre 15° et 25°.7. Electrical connector according to claim 1, characterized in that the flexible part (53) of the sheet of conductive material (50) has, near its end (54), an end portion (55) which is folded so that its cross section has practically the shape of a V whose branches (70, 71) form an angle between them (Ĉ) whose value is between 60 ° and 75 °, the branch (71) closest to said end (54) forming with the enclosure plate (20) , when the two connector parts (10 and 11) are coupled, an angle (D̂) whose value is between 15 ° and 25 °. 8. Connecteur électrique selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la feuille de matériau conducteur (50) présente, au voisinage de son extrémité (54), une portion terminale (55) qui, lorsque les deux parties de connecteur (10 et 1) sont accouplées, est appliquée sur la plaque d'enceinte (20) avec une force dont la valeur, exprimée en newtons, est comprise entre 0,02b et 0,12b, b représentant la dimension, exprimée en millimètres, de ladite extrémité (54) de la feuille.8. An electrical connector according to any one of claims 1 to 7, characterized in that the sheet of conductive material (50) has, near its end (54), an end portion (55) which, when the two parts connector (10 and 1) are coupled, is applied to the speaker plate (20) with a force whose value, expressed in newtons, is between 0.02b and 0.12b, b representing the dimension, expressed in millimeters, from said end (54) of the sheet. 9. Connecteur électrique selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la feuille de matériau conducteur (50) est réalisée en un alliage de cuivre au béryllium.9. An electrical connector according to any one of claims 1 to 8, characterized in that the sheet of conductive material (50) is made of a copper alloy with beryllium. 10. Connecteur électrique selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le corps isolant (12) de sa première partie (10) est solidaire du châssis (19) contenant l'ensemble électrique (18).10. An electrical connector according to any one of claims 1 to 9, characterized in that the insulating body (12) of its first part (10) is integral with the frame (19) containing the electrical assembly (18).
EP90401627A 1989-06-15 1990-06-13 Electrical connector for connecting a shielded multiconductor cable to an electrical unit which is inside a frame Expired - Lifetime EP0403371B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8907945 1989-06-15
FR8907945A FR2648627B1 (en) 1989-06-15 1989-06-15

Publications (2)

Publication Number Publication Date
EP0403371A1 true EP0403371A1 (en) 1990-12-19
EP0403371B1 EP0403371B1 (en) 1994-01-12

Family

ID=9382754

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Application Number Title Priority Date Filing Date
EP90401627A Expired - Lifetime EP0403371B1 (en) 1989-06-15 1990-06-13 Electrical connector for connecting a shielded multiconductor cable to an electrical unit which is inside a frame

Country Status (11)

Country Link
US (1) US5112251A (en)
EP (1) EP0403371B1 (en)
JP (1) JP2839707B2 (en)
KR (1) KR940005933B1 (en)
AR (1) AR243302A1 (en)
AU (1) AU628597B2 (en)
CA (1) CA2034494C (en)
DE (1) DE69005913T2 (en)
ES (1) ES2050396T3 (en)
FR (1) FR2648627B1 (en)
WO (1) WO1990016096A1 (en)

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KR102299742B1 (en) 2015-01-11 2021-09-09 몰렉스 엘엘씨 Circuit board bypass assemblies and components therefor
US10739828B2 (en) 2015-05-04 2020-08-11 Molex, Llc Computing device using bypass assembly
US10424856B2 (en) 2016-01-11 2019-09-24 Molex, Llc Routing assembly and system using same
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JP2019033011A (en) * 2017-08-09 2019-02-28 矢崎総業株式会社 Mounting structure for shield connector directly mounted on apparatus
CN117080801A (en) * 2018-07-20 2023-11-17 富加宜（美国）有限责任公司 High frequency connector with recoil
CN113258325A (en) 2020-01-28 2021-08-13 富加宜（美国）有限责任公司 High-frequency middle plate connector

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Also Published As

Publication number Publication date
CA2034494C (en) 1994-04-19
FR2648627A1 (en) 1990-12-21
KR940005933B1 (en) 1994-06-24
AR243302A1 (en) 1993-07-30
WO1990016096A1 (en) 1990-12-27
AU5838890A (en) 1991-01-08
EP0403371B1 (en) 1994-01-12
DE69005913D1 (en) 1994-02-24
AU628597B2 (en) 1992-09-17
JPH03503102A (en) 1991-07-11
FR2648627B1 (en) 1991-10-11
JP2839707B2 (en) 1998-12-16
ES2050396T3 (en) 1994-05-16
US5112251A (en) 1992-05-12
DE69005913T2 (en) 1994-04-28
CA2034494A1 (en) 1990-12-16
KR920702045A (en) 1992-08-12

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