EP0340066B1 - Electrical connector - Google Patents

Description

The present invention relates to an electrical connector of the type comprising a housing surrounding an insulating block which receives at least one conductive contact body which extends from a front face of the housing towards its rear face and inside which are arranged the at least two contact elements which are held there parallel to the axis of the connector in an angular position determined by a body of insulating material received in the contact body.

Such a connector is known from document FR-A-1 547 023

The invention relates more particularly to connectors of this type, called "TWINAX", comprising two parallel contact elements in each contact body and which are used for the connection of shielded two-wire electrical conductors, which are for example lines of transmission signals, surrounded by a metallic shielding braid which is electrically connected to the rear part of the contact body.

The object of the present invention is to provide such an electrical connector which is of particularly compact dimensions and which allows its user to carry out the electrical connection operation in the simplest possible way, and in particular by not having to handle simultaneously a minimum of components.

For this purpose, the invention provides an electrical connector of the type mentioned above, characterized in that each contact element comprises a radial groove which cooperates with a deformable elastic blade disposed in the insulating body in a direction transverse to the axis of the contact element and whose transverse parallel edges cooperate respectively with the radial shoulders facing said groove.

This particularly advantageous arrangement allows, thanks to the possibility of the elastic blades to deform radially outwards, to introduce each contact element into the insulating block, after having been connected to its conductive wire, from the rear face. of the insulating body and causing the automatic erasure of the contact blade which then drops back into position in its groove in order to ensure the axial maintenance of the contact element in position in the insulating body.

According to another characteristic of the invention, each contact element is received in a cylindrical bore formed in the insulating body of the contact and the elastic blade is arranged in a transverse notch of the insulating body which intercepts the corresponding cylindrical bore and whose radial faces parallel and opposite cooperate with the edges facing the blade to immobilize it axially relative to the insulating body.

This characteristic makes it possible to simultaneously ensure the axial maintenance of each contact element in the two axial directions thanks to a single element constituted by the deformable elastic blade.

According to another characteristic of the invention, the notch is open radially outwards and the blade is held there radially in position by a ring mounted on the insulating body.

This characteristic allows a particularly simple embodiment of the contact body and the arrangement of the elastic blades inside this element, prior to the complete assembly of the connector.

• les faces radiales opposées de la bague sont reçues entre les faces radiales en vis-à-vis de l'encoche avec lesquelles elles coopèrent pour immobiliser axialement la bague par rapport au corps isolant ;
• le corps de contact est une douille métallique cylindrique de profil étagé dans laquelle est reçu un corps isolant de profil complémentaire dans lequel sont agencés au moins deux éléments de contact identiques, chaque élément de contact coopérant avec une lame élastique indépendante ;
• les encoches, outre des plans radiaux et leurs faces opposées comportent un plan sécant interceptant les alésages cylindriques, les plans sécants étant alignés et parallèles à l'axe longitudinal du contact, et les lames élastiques y sont maintenues par une bague unique.

According to other features of the invention :

• the opposite radial faces of the ring are received between the radial faces facing the notch with which they cooperate to immobilize the ring axially with respect to the insulating body;
• the contact body is a cylindrical metallic socket of stepped profile in which is received an insulating body of complementary profile in which are arranged at least two identical contact elements, each contact element cooperating with an independent elastic blade;
• the notches, in addition to radial planes and their opposite faces comprise a secant plane intercepting the cylindrical bores, the secant planes being aligned and parallel to the longitudinal axis of the contact, and the elastic blades are held there by a single ring.

This set of characteristics allows a particularly compact embodiment of the assembly and therefore of very small dimensions, the two notches being, in the case of a connector for shielded conductor with two coaxial wires, diametrically opposite with respect to the axis of the body insulating, the two blades being held there by a single ring which can be mounted by elastic deformation on the insulating body.

• le connecteur comporte des moyens d'indexation angulaire du corps isolant par rapport au corps de contact ainsi que des moyens de positionnement angulaire du corps de contact par rapport au boîtier du connecteur.

According to other characteristics of the invention:

• the connector comprises means for angular indexing of the insulating body with respect to the contact body as well as means for angular positioning of the contact body with respect to the connector housing.

These characteristics are necessary for the correct alignment of the contact bodies of two connectors, male and female respectively, for the production of a connection assembly in order to avoid, on the one hand, any deterioration during the fitting of the two connectors, one in the other, contact elements which would be misaligned, and on the other hand to ensure a correct connection of the various signal lines without possible error.

According to another characteristic of the invention, the angular positioning means are constituted by at least one indexing tab fixed to the rear part of the contact body projecting from the insulating block, which cooperates with a corresponding flat formed in the insulating block. and which extends in a plane parallel to the general axis of the connector.

According to a preferred embodiment of the invention, the tab can be constituted by the free branch of a bracket whose end of the other perpendicular branch is fixed to the rear part of the contact body.

According to a particularly advantageous embodiment in the case where the electrical connector is of the type comprising a rectangular parallelepiped housing, the positioning means can be constituted by an elastic clamp comprising two parallel jaws which form two indexing lugs which cooperate respectively with two parallel faces of the housing or of the insulating block, the two jaws being interconnected by a connecting branch comprising a mounting orifice on the rear part of the contact body and means for angular indexing of the elastic clamp relative to the body of contact.

The indexing tab can be made of a conductive element which cooperates with a portion of the metal shell surrounding the insulating block, to establish a ground contact between the latter and the contact body.

• La figure 1 est une vue en coupe axiale d'un ensemble de connexion comportant un connecteur électrique mâle et un connecteur électrique femelle complémentaire réalisés conformément aux enseignements de l'invention ;
• la figure 2 est une vue en section du corps de contact du connecteur femelle selon la ligne 2-2 de la figure 1 ;
• la figure 3 est une vue en coupe axiale d'un mode de réalisation préféré du corps de contact du connecteur mâle de la figure 1 ;
• la figure 4 est une vue en coupe axiale du corps isolant du connecteur mâle représenté à la figure 1 ;
• la figure 5 est une vue en coupe axiale d'un élément de contact femelle du connecteur mâle de la figure 1 ;
• la figure 6 est une vue en bout selon la ligne F6 de la figure 4 ;
• la figure 7 est une section selon la ligne 7-7 de la figure 4 ;
• la figure 8 est une vue latérale du corps de contact représenté à la figure 3 équipé du mode de réalisation préféré des moyens de positionnement angulaire constitués par une équerre d'indexation ;
• la figure 9 est une vue de dessus de la partie arrière du corps de contact de la figure 8 ;
• la figure 10 est une vue en bout selon la ligne F9 de la figure 8 représentant seulement l'équerre de positionnement ;
• la figure 11 est une vue en bout selon la ligne F11 de la pince élastique de positionnement angulaire équipant le corps de contact mâle du connecteur mâle de la figure 1 ;
• la figure 12 est une vue en coupe selon la ligne 12-12 de la figure 11 ;
• la figure 13 est une vue de dessus de la pince élastique représentée à la figure 12 ;
• la figure 14 représente une variante de réalisation d'un connecteur électrique selon l'invention du type à raccordement coudé ; et
• la figure 15 est une vue en coupe selon la ligne 15-15 de la figure 14.

Other characteristics and advantages of the invention will appear on reading the detailed description which follows for the understanding of which reference will be made to the appended drawings in which:

• Figure 1 is an axial sectional view of a connection assembly comprising a male electrical connector and a complementary female electrical connector made in accordance with the teachings of the invention;
• Figure 2 is a sectional view of the contact body of the female connector along line 2-2 of Figure 1;
• Figure 3 is an axial sectional view of a preferred embodiment of the contact body of the male connector of Figure 1;
• Figure 4 is an axial sectional view of the insulating body of the male connector shown in Figure 1;
• Figure 5 is an axial sectional view of a female contact element of the male connector of Figure 1;
• Figure 6 is an end view along line F6 of Figure 4;
• Figure 7 is a section along line 7-7 of Figure 4;
• Figure 8 is a side view of the contact body shown in Figure 3 equipped with the preferred embodiment of the positioning means angular constituted by an indexing square;
• Figure 9 is a top view of the rear part of the contact body of Figure 8;
• Figure 10 is an end view along line F9 of Figure 8 showing only the positioning bracket;
• Figure 11 is an end view along line F11 of the elastic angular positioning clamp fitted to the male contact body of the male connector of Figure 1;
• Figure 12 is a sectional view along line 12-12 of Figure 11;
• Figure 13 is a top view of the spring clip shown in Figure 12;
• FIG. 14 shows an alternative embodiment of an electrical connector according to the invention of the type with an elbow connection; and
• FIG. 15 is a sectional view along line 15-15 of FIG. 14.

There is shown in Figure 1 a connection assembly 20 consisting of a female connector 22A and a male connector 22B which are shown nested one inside the other.

The male or female designation adopted here corresponds to the gender, male or female of the type of contact body fitted to the connector. For reasons of clarity all the components of the female connector (on the left) are indicated "A", and those of the male connector "B".

Figure 1 is an axial sectional view of a connection assembly 20 which, in this embodiment, consists of two rectangular parallelepiped connectors each comprising an outer metal protective shell in two parts 24A, 24B.

However, the invention is not limited to this type of rectangular connector but also finds its application in the case of a connector with a cylindrical housing.

Each of the metal shells 24A, 24B constitutes a connector housing enclosing a block of electrically insulating material 26A, 26B. To make it easier to assemble and assemble, each of the two insulating blocks is made in two parts.

Each insulating block 26A, 26B receives a female contact body 28A, or a male contact 28B respectively.

Each contact body is constituted by an electrically conductive metallic socket of generally stepped cylindrical profile.

Each contact body 28A, 28B extends substantially from the front face 30A, 30B of the connector in the direction of its rear face 32A, 32B.

As can be seen in Figure 1 each contact body 28A, 28B protrudes rearward from the insulating block 26A, 26B.

Each contact body 28A, 28B is immobilized axially inside the insulating block 26A, 26B by an external radial shoulder 34A, 34B which cooperates on the one hand with an internal radial shoulder 36A, 36B of the insulating block and, on the other hand part, in a manner known per se, with the free end 38A, 38B of the deformable elastic tabs of an axial retention element 40A, 40B of the insulating body constituted by a split cylindrical ring.

In order to allow the subsequent disassembly of the contact body 28A, 28B by the rear face of the connector, the latter is equipped with an extractor element 42A, 42B constituted by a ferrule of revolution capable of sliding between the external peripheral surface of the contact body 28A on which it is mounted and the axial retention element 40A in order to cause the radial separation of the free ends 38A, 38B.

The front part 44A of the female contact body 28A has a diameter slightly greater than that of the front part 44B of the male contact body 28B and is split axially so as to allow the introduction of the contact body 28B into the contact body 28A . Each contact body 28A, 28B comprises means for angular positioning relative to the connector housing 22A, 22B which will be described later.

An insulating body 46A, 46B of stepped cylindrical external profile is mounted inside the contact body 28A, 28B. More precisely, each insulating body 46A, 46B is arranged in the two sections of smaller diameters of the internal bore 48A, 48B of the contact body.

As can be seen in Figures 1 and 2, each insulating body 46A, 46B has two cylindrical bores 50A, 50B, which extend parallel to the axis of the connector, in a diametrical plane of the insulating body and which open towards the rear in a cylindrical wiring chamber.

The two cylindrical bores 50A of the insulating body 48A each receive a male contact element 52A which is arranged therein so as to project out of the insulating body 48A in the direction of the front face 30A to cooperate each with a female contact element 52B which is disposed in one of the two cylindrical bores 50B of the insulating body 48B.

According to the invention, each body insulator 46A, 46B has two diametrically opposite transverse notches 54A, 54B. Each notch 54A, 54B intercepts one of the cylindrical bores 50A, 50B, so that a deformable elastic blade 56A, 56B can cooperate, in a manner which will be explained later, with an internal radial groove 60A, 60B formed in each contact element 52A, 52B.

Each of the elastic blades 58A, 58B extends transversely relative to the axis of the contact elements 52A, 52B as do the notches 54A, 54B. The notches 54A, 54B the blades 58A, 58B and the grooves 60A, 60B have substantially the same width in the axial direction.

In this way the transverse parallel edges of each elastic blade 58A, 58B are received between the opposite radial faces 62A, 62B of the notch and between the radial shoulders 64A, 64B delimiting the radial groove 62A, 62B so that that, when the elements are in the position shown in FIGS. 1 and 2, the contact element 52A, 52B is held axially in both directions inside the insulating body 46A, 46B.

The blades 58A, 58B are held in their respective notches 54A, 54B by a common ring 66A, 66B. Each ring 66A, 66B is a ring made of insulating material which is mounted on the insulating body 48A, 48B by elastic deformation so as to snap axially between the opposite radial faces 62A, 62B of the notches which cooperate with the opposite radial faces of the ring and to maintain the blades 58A, 58B which have been previously put in place.

We choose the inner diameter of the ring 66A, 66B slightly smaller than the external diameter of the insulating body in the corresponding zone so that, in the mounted position and shown in Figures 1 and 2, the ring 66A, 66B is slightly deformed and has a substantially elliptical profile. Thanks to this characteristic, the ring 66A, 66B gives each elastic blade 58A, 58B additional elasticity in the radial direction.

Each contact body 28A, 28B has in its median section a region radially inwardly deformed 68A, 68B. This zone, which can be obtained either by a puncture, or by a billing, cooperates with a corresponding deformed zone 70A, 70B of the insulating body 46A, 46B on the one hand to ensure an axial maintenance of the latter in the contact body 28A, 28B and on the other hand it constitutes means of angular indexing of the insulating body 46A, 46B inside the contact body 28A, 28B. The area 70A, 70B, may alternatively be constituted by an axial countersinking.

FIG. 4 shows a preferred embodiment of a male insulating body 46B in which it can be noted that the introduction face 72B of the contact elements 52B comprises a conical flared profile 74B which cooperates with a beveled edge 76B of the axial partition 78B for separating the two internal cylindrical bores 50B. This set of surfaces 74B and 76B facilitates the introduction of the contact elements during the electrical connection operations.

In order to further improve this cooperation, and according to a characteristic not shown, the front end 80B of each contact element 60B can also have a rounded profile in a plane parallel to the slot. All the characteristics which have just been mentioned in connection with a female contact element 52B naturally apply to a male contact element 52A which itself has a semi-spherical end.

Each contact element 52A, 52B has at its rear part a blind bore 82A, 82B for the connection by crimping of the stripped end of an electrical wire 86A belonging to a shielded electrical conductor 88A.

The shielded electrical conductor 88A shown in the left part of FIG. 1 comprises electrical wires 86A each surrounded by an individual sheath 90A. The ends of the two sheaths 90A bear against the rear ends facing the contact elements 52A. The two sheaths 90A are surrounded by a metal braiding shield 92A itself surrounded by an insulating sheath of conductor 94A.

The electrical connection between the rear part 96A of the contact body 28A and the braid 92A is ensured by crimping the latter on a cylindrical ferrule 98A, 98B so as to pinch it between these two elements.

A preferred embodiment of the angular positioning means of a contact body, for example male, is shown in Figures 8 to 10. The positioning is ensured by means of an indexing bracket 100B whose free branch plant 102B s 'extends in a plane parallel to the axis of the contact body 28B towards the front and the other branch of which is welded to the external peripheral surface of the contact body 28B.

The flat leg formed by the branch 102B is provided to cooperate with a corresponding flat formed on the body of the electrical connector, that is to say for example on the upper face of the insulating block 26B or, in the case of a cylindrical connector, with the interior d 'A corresponding profile notch formed on the rear face of the insulating block.

In addition to its simplicity of construction, the angular positioning bracket 100B is particularly advantageous in that it leaves free over a large angular area 106B (greater than 180 °) access to the extractor element 42B to facilitate disassembly of the body. contact 28B.

There is shown on the right of Figure 1 and Figures 11 to 13 another embodiment of angular positioning means of the contact body 28B relative to the housing of the connector 22B.

This is a positioning clamp 108B having in section the shape of a U, the two branches 110B of which constitute parallel jaws which cooperate with the opposite planar faces 112B of the insulating block 26B of the connector 22B.

The branches 110B are connected together by a central branch 114B which has a mounting orifice 116B on the contact body 28B. The mounting orifice 116B comprises two parallel flats facing each other 118B which cooperate with corresponding flats, not shown, formed on the rear part of the contact body 28B to angularly index the angular clamp 108B relative to the contact 28B.

The contact body 28B must also have means, not shown in FIG. 1, for axial positioning of the clamp 108A, constituted by example by a shoulder.

As can be seen in the left part of FIG. 1, a similar clamp 108A equips the contact body 28A. However, this clamp differs from the clamp 108B in that each of the branches 110A is extended forward by a ground connection tab 120A which cooperates with the metal shell 24A.

Thanks to this characteristic, the connection clamp 108A, which is made of an electrically conductive metal, ensures mass continuity from the outside of the conductor, between the contact body 28A and the metal shell 24A of the connector 22A.

We will now describe the method of connecting a screened conductor 88A to a connector 22A according to the invention.

For the user, the connector 22A is already equipped with the contact body 28A inside which is fixed the insulating body 46A equipped with its deformable elastic blades 58A.

After having stripped the wires 86A so that the two sheaths 90A end substantially in the same plane, the user crimps two electrical contacts, in this case male contacts 52A, on the stripped ends of the wires 86A. This operation is a conventional crimping operation with contact elements of a known type.

After having threaded the ferrule 98A on the conductive sheath 94A, itself cut to an adequate length to allow the metal braid 92A to be turned over on the external peripheral surface of the ferrule 98A, the user then comes to present the assembly formed by the driver shielded 88A equipped with its two contact elements 52A on the rear face of the contact body 28A.

It axially introduces the front ends of the two contact elements 52A into the corresponding bores 50A of the insulating body. Under the effect of the axial thrust exerted by the user, the contact elements 52A then progressively penetrate inside until they cause the radial blades 58A which fall back to radiate outwards, under the action of their elastic deformation and the additional force applied to them by the ring 66A, in the corresponding grooves 60A of the contact elements 52A.

In order to compensate for possible axial alignment defects between the two grooves 60A, resulting from a defective crimping operation, the axial width of the grooves is chosen to be slightly greater than that of the blades 58A, for example around 0.2 mm .

Once this position has been reached, the contact elements 52A are immobilized axially relative to the insulating body 46A, to the contact body 28A and therefore relative to the connector 22A.

It then only remains for the user to crimp the rear part 96A of the contact body 28A on the ferrule 98A so as to axially immobilize the shielded conductor 88A relative to the contact body 28A as well as to ensure electrical continuity between the shielding braid 92A and the contact body 28A.

It can therefore be seen that, during the introduction operation, the user has only two sets in hand, on the one hand the connector 22A proper and on the other hand the conductor 88A equipped with its two 52A crimped contacts.

If the user wishes to dismantle the contact body 28A in order to modify the electrical connections of the contact elements 52A, he acts on the extractor element 42A. This action is facilitated by the two opposite axial slots 117B formed in the positioning clamp (see FIG. 13) which make it possible to introduce an extraction tool to push the extractor towards the interior of the connector.

The user can then introduce a new contact body 28A and proceed, as described above, to connect and install new contacts 52A. The mode of use which has just been described is identical for the connection of a screened conductor to a male connector 22B.

FIGS. 14 and 15 show a variant allowing the connection of a screened conductor (not shown), forming a 90 ° bend with respect to the general axis of the connector 22A.

In this embodiment, the conducting wires are respectively welded in forks 122A formed at the rear end of each contact element 52A.

The rear part of the contact element has a plug 124A allowing access to the forked rear ends 122A of the contact elements 52A for carrying out the welding operation of the conducting wires which are introduced, in a direction perpendicular to the axis. of the contact body 28A, in a connection body 126A which is attached to the rear part of the contact body 28A and forms an angle of 90 ° relative to it.

As can be seen in FIG. 14, the extractor element 42A has a clearance 128A allowing the passage around the upper end 130A of the connection body 126A and therefore the recoil of the extractor element 42A to the left as shown in Figure 14.

• après avoir dénudé les extrémités des fils conducteurs et préparé la tresse de blindage sur une ferrule identique à la ferrule 98A de la figure 1, l'utilisateur introduit l'ensemble, depuis le bas vers le haut en considérant la figure 14, dans le corps de raccordement 126A.

The connection operation is carried out as follows:

• after having stripped the ends of the conducting wires and prepared the shielding braid on a ferrule identical to the ferrule 98A of FIG. 1, the user introduces the assembly, from the bottom to the top while considering FIG. 14, in the body of connection 126A.

He then proceeds to weld the ends of the conductive wires in the forks 122A by accessing them via the open rear end of the contact body 28A.

It then only remains for the user to crimp the connection body 126A onto the ground contact ferrule and then to close the contact body 28A by means of the plug 124A which is welded to the body.

In this variant, the indexing lug of the contact body relative to the connector 22A consists of the flat upper face 134A of the radial shoulder 132A formed on the connection body 126A.

It is also noted that, in this version, the two contacts 52A are in a diametral plane angularly offset by 90 ° relative to the embodiment shown in Figures 1 and 2. It is of course necessary to choose one of these two orientations in order to standardize the same series of connectors with straight and / or angled connections.

Claims (15)

1. Electrical connector (22A, 22B) of the type having a casing surrounding an insulating block (26A, 26B) housing at least one conductive contact body (28A, 28B), which extends from a front face of the casing to its rear face and inside which are arranged at least two contact members (52A, 52B) which are held therein parallel to the axis of the connector in an angular position determined by a body (46A, 46B) made from insulating material housed in the contact body, characterised in that each contact member (52A, 52B) has a radial groove (60A, 60B) which cooperates with a deformable elastic blade (58A, 58B) disposed in the insulating body in a direction transverse to the axis of the contact member and the transverse parallel edges of which cooperate respectively with the facing radial shoulders (64A, 64B) of the said groove.
2. Electrical connector according to Claim 1, characterised in that each contact member (52A, 52B) is housed in a cylindrical bore (50A, 50B) formed in the insulating body, and in that each elastic blade (58A, 58B) is disposed in a transverse recess (54A, 54B) in the insulating contact body which intercepts the corresponding cylindrical bore (50A, 50B) and the opposing parallel radial faces of which (62A, 62B) cooperate with the said facing edges of the blade (58A, 58B) in order to immobilize it axially with respect to the insulating body.
3. Electrical connector according to claim 2, characterised in that the said recess (54A, 54B) is open radially towards the outside and in that the blade (58A, 58B) is held in position radially therein by a ring (66A, 66B) mounted on the insulating body (46A, 46B).
4. Electrical connector according to Claim 3, characterised in that the opposing radial faces of the ring (66A, 66B) are housed between the facing radial faces (62B) of the recess (54A, 54B), with which they cooperate in order to immobilize the ring (66A, 66B) axially with respect to the insulating body (46A, 46B).
5. Electrical connector according to any one of the preceding claims, characterised in that the contact body (28A, 28B) is a cylindrical metal sleeve with a stepped profile in which is housed an insulating body (46A, 46B) with a matching profile, in which are arranged at least two identical contact members (52A, 52B), and in that each contact member (52A, 52B) cooperates with an independent elastic blade (58A, 58B).
6. Electrical connector according to Claim 5, taken in combination with one of Claims 3 or 4, characterised in that the recesses (54A, 54B), in addition to radial planes (62A, 62B) and their opposing faces, have a secant plane intercepting the cylindrical bores (50A, 50B), the secant planes being aligned and parallel to the longitudinal axis of the contact, and in that the elastic blades (58A, 58B) are held there by a single ring (66A, 66B).
7. Electrical connector according to any one of Claims 3 to 6, characterised in that the ring (66A, 66B) is mounted on the said insulating body by elastic deformation.
8. Electrical connector according to any one of the preceding claims, characterised in that it has means (68A-70A, 68B-70B) for indexing the insulating body angularly with respect to the contact body.
9. Electrical connector according to Claim 8, characterised in that it has means (100B, 108B) for positioning the contact body (28B) angularly with respect to the casing of the connector (22B).
10. Electrical connector according to Claim 9, characterised in that the said angular positioning means are formed by at least one indexing lug (102B, 110B, 134A) fixed to the rear part of the contact body projecting out of the said insulating block, which cooperates with a corresponding flat formed in the insulating block and which extends in a plane parallel to the overall axis of the connector.
11. Electrical connector according to Claim 10, characterised in that the said lug is formed by the free arm (102B) of an angle piece (100B), the end of the other perpendicular arm (104B) of which is fixed to the rear part of the contact body (28B).
12. Electrical connector according to Claim 10 of the type having a rectangular parallelepipedal casing, characterised in that the said positioning means are formed by an elastic gripper (108B) having two parallel jaws (110B) which form two indexing lugs cooperating respectively with two parallel faces (112B) of the said casing or of the said insulating block, the said two jaws being connected to each other by a connecting arm (114B) having an orifice (116B) for mounting on the rear part of the said contact body and means (118B) for indexing the elastic gripper (108B) angularly with respect to the contact body (28B).
13. Electrical connector according to any one of Claims 10 to 12, characterised in that the said lug is a conductive member which cooperates with a metal part of the casing in order to establish an earth contact between the latter and the contact body.
14. Electrical connector according to Claim 10 of the type having a connecting body (126A) fixed to the rear part of the contact body, characterised in that the said lug is formed by the flat face (134A) of a shoulder (132A) on the said connecting body.
15. Electrical connector according to any one of the preceding claims, characterised in that two contact members (52A, 52B) are arranged in the contact body and lie in a diametral plane, and in that the rear part (96A, 96B) of the contact body (28A) is designed to cooperate with the metal braid (92A) sheathing an electrical conductor (88A) having two conducting wires (86A), each of which is connected respectively to the rear part of one of the said two contact members.

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