EP0340066A1 - Elektrischer Verbinder - Google Patents

Elektrischer Verbinder Download PDF

Info

Publication number
EP0340066A1
EP0340066A1 EP89401012A EP89401012A EP0340066A1 EP 0340066 A1 EP0340066 A1 EP 0340066A1 EP 89401012 A EP89401012 A EP 89401012A EP 89401012 A EP89401012 A EP 89401012A EP 0340066 A1 EP0340066 A1 EP 0340066A1
Authority
EP
European Patent Office
Prior art keywords
contact
electrical connector
connector according
insulating
contact body
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
EP89401012A
Other languages
English (en)
French (fr)
Other versions
EP0340066B1 (de
Inventor
Hervé Bricaud
Jean-François Lescoat
Jean-Claude Prunier
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.)
ITT Composants et Instruments SA
Nouvelle De Connexion Ste
Original Assignee
ITT Composants et Instruments SA
Nouvelle De Connexion Ste
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ITT Composants et Instruments SA, Nouvelle De Connexion Ste filed Critical ITT Composants et Instruments SA
Publication of EP0340066A1 publication Critical patent/EP0340066A1/de
Application granted granted Critical
Publication of EP0340066B1 publication Critical patent/EP0340066B1/de
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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/426—Securing by a separate resilient retaining piece supported by base or case, e.g. collar or metal contact-retention clip

Definitions

  • 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.
  • 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.
  • TWINAX connectors of this type
  • the object of the present invention is to provide such an electrical connector which is particularly compact 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.
  • 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.
  • 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.
  • 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.
  • the opposite radial faces of the ring are received between the radial faces opposite 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 the 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.
  • the connector includes 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.
  • 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.
  • the tab can be constituted by the free branch of a bracket whose end of the other perpendicular branch is fixed on the rear part of the contact body.
  • 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.
  • FIG. 1 shows 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 denomination adopted here corresponds to the gender, male or female of the type of contact body fitted to the connector.
  • 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.
  • 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 a metallic conductive socket of electricity 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.
  • each contact body 28A, 28B projects rearwards out of the insulating block 26A, 26B.
  • Each insulating 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 , 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.
  • 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.
  • each 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.
  • 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 disposed 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.
  • each body insulator 46A, 46B comprises 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 well as 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.
  • 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.
  • 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 FIGS. 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 zone 70A 70B may alternatively be constituted by an axial counterbore.
  • 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 has 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.
  • 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 apply of course 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 connection by crimping 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.
  • FIG. 8 to 10 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.
  • 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.
  • 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 108B, constituted by example by a shoulder.
  • a similar clamp 108A equips the contact body 28A.
  • 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.
  • 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.
  • the connector 22A is already fitted with the contact body 28A inside which is insulated the insulating body 46A equipped with its deformable elastic blades 58A.
  • the user After having threaded the ferrule 98A on the conductor 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 constituted by the driver shielded 88A equipped with its two contact elements 52A on the rear face of the contact body 28A.
  • the axial width of the grooves is chosen to be slightly greater than that of the blades 58A, for example around 0.2 mm .
  • 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.
  • 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, in the manner 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 relative to the general axis of the connector 22A.
  • 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 comprises a plug 124A allowing access to the forked rear ends 122A of the contact elements 52A to carry 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.
  • 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.
  • connection operation is carried out as follows: - after having stripped the ends of the conductive 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 connection body 126A.
  • 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.
  • 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.
  • 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.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
EP19890401012 1988-04-27 1989-04-12 Elektrischer Verbinder Expired - Lifetime EP0340066B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8805630 1988-04-27
FR8805630A FR2630864B1 (fr) 1988-04-27 1988-04-27 Connecteur electrique

Publications (2)

Publication Number Publication Date
EP0340066A1 true EP0340066A1 (de) 1989-11-02
EP0340066B1 EP0340066B1 (de) 1994-01-05

Family

ID=9365752

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890401012 Expired - Lifetime EP0340066B1 (de) 1988-04-27 1989-04-12 Elektrischer Verbinder

Country Status (3)

Country Link
EP (1) EP0340066B1 (de)
DE (1) DE68911985T2 (de)
FR (1) FR2630864B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108134235A (zh) * 2018-01-11 2018-06-08 凡甲电子(苏州)有限公司 电连接器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031639A (en) * 1960-03-21 1962-04-24 United Carr Fastener Corp Twist-lock snap-in contact
US3059216A (en) * 1958-11-13 1962-10-16 Cons Electrodynamies Corp Electrical connector
US3122407A (en) * 1961-12-18 1964-02-25 Winchester Electronics Inc Electrical connector
FR1547023A (fr) * 1967-12-08 1968-11-22 Connecteur électrique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3059216A (en) * 1958-11-13 1962-10-16 Cons Electrodynamies Corp Electrical connector
US3031639A (en) * 1960-03-21 1962-04-24 United Carr Fastener Corp Twist-lock snap-in contact
US3122407A (en) * 1961-12-18 1964-02-25 Winchester Electronics Inc Electrical connector
FR1547023A (fr) * 1967-12-08 1968-11-22 Connecteur électrique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108134235A (zh) * 2018-01-11 2018-06-08 凡甲电子(苏州)有限公司 电连接器
CN108134235B (zh) * 2018-01-11 2024-01-30 凡甲电子(苏州)有限公司 电连接器

Also Published As

Publication number Publication date
FR2630864A1 (fr) 1989-11-03
DE68911985T2 (de) 1994-04-28
FR2630864B1 (fr) 1990-08-24
DE68911985D1 (de) 1994-02-17
EP0340066B1 (de) 1994-01-05

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