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EP1271713B1 - Low voltage modular jack - Google Patents

Low voltage modular jack Download PDF

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Publication number
EP1271713B1
EP1271713B1 EP02291603A EP02291603A EP1271713B1 EP 1271713 B1 EP1271713 B1 EP 1271713B1 EP 02291603 A EP02291603 A EP 02291603A EP 02291603 A EP02291603 A EP 02291603A EP 1271713 B1 EP1271713 B1 EP 1271713B1
Authority
EP
European Patent Office
Prior art keywords
contact
contacts
metal contacts
metal
female
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.)
Expired - Lifetime
Application number
EP02291603A
Other languages
German (de)
French (fr)
Other versions
EP1271713A1 (en
Inventor
Jean-Marc Jaouen
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.)
Legrand France SA
Original Assignee
Legrand France SA
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 Legrand France SA filed Critical Legrand France SA
Publication of EP1271713A1 publication Critical patent/EP1271713A1/en
Application granted granted Critical
Publication of EP1271713B1 publication Critical patent/EP1271713B1/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
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H01R13/6461—Means for preventing cross-talk
    • 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
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H01R13/6473—Impedance matching
    • H01R13/6474—Impedance matching by variation of conductive properties, e.g. by dimension variations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/60—Contacts spaced along planar side wall transverse to longitudinal axis of engagement
    • H01R24/62—Sliding engagements with one side only, e.g. modular jack coupling devices
    • H01R24/64—Sliding engagements with one side only, e.g. modular jack coupling devices for high frequency, e.g. RJ 45
    • 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
    • H01R13/02—Contact members
    • H01R13/35—Contact members for non-simultaneous co-operation with different types of contact member, e.g. socket co-operating with either round or flat pin
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/16—Connectors or connections adapted for particular applications for telephony
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R27/00—Coupling parts adapted for co-operation with two or more dissimilar counterparts
    • 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
    • Y10S439/941—Crosstalk suppression

Definitions

  • the present invention relates to a weak current jack of the type "plug (jack) modular", such as a telephone or computer socket, intended in particular to establish the connection between a computer or telephone network and a computer or telephone cable of a particular apparatus.
  • a weak current jack of the type "plug (jack) modular"
  • a telephone or computer socket intended in particular to establish the connection between a computer or telephone network and a computer or telephone cable of a particular apparatus.
  • a computer socket type "RJ 45” generally comprises a body of insulating material having a female inlet mouth adapted to receive a plug type "RJ 45", and a series of eight aligned metal contacts, each metal contact s extending from a shank freely on the side of the female inlet mouth and having a contact portion adapted to make electrical contact with a metal contact of the plug.
  • the eight contacts are intended to be connected in pairs to pairs of electrical wires which each form a single electrical circuit.
  • female telephone sockets may include only four or six metal contacts ("RJ 11" or "RJ 12" type plug) placed in a body of insulating material of the same type as that of a computer socket. as mentioned above.
  • the telephone plugs of the type "RJ 11" or “RJ 12”, narrower than the computer plugs of the type "RJ 45", are inserted in the computer jacks of the type "RJ 45" which only four or six metal contacts are used.
  • parasitic crosstalk phenomena may appear between the different pairs of metal contacts of a female "RJ 45" type low-current receptacle in contact with the corresponding pairs of metal contacts. of the plug of the type "RJ 45".
  • the parasitic phenomena of crosstalk are favored by the proximity of lengths of parallel metallic contacts, since it is an induced current.
  • the pairs of critical metal contacts are generally the pairs of central metal contacts constituted by the metal contacts bearing the numbers 3 and 6 on the one hand, and 4 and 5 on the other hand. It is, in fact, pairs of metal contacts, each metal contact is framed by other metal contacts.
  • One of these solutions consists of intersecting the metal contacts concerned at particular locations in order to create an opposite phase induced current which is able to cancel the first induced current causing the parasitic phenomenon of crosstalk during the transmission of high frequency signals.
  • Another known solution is to reduce the parallel lengths of metal contacts.
  • the present invention proposes a new female low current plug of the "modular jack" type, which is suitable for use with an eight-pin plug, six or four metal contacts, without degradation of the end metal contacts, and which has good performance of transmission of high frequency signals.
  • the socket of small female current of the type "plug (jack) modular” comprises a body of insulating material having a female inlet mouth adapted to receive a plug, and a series of eight metal contacts aligned, each metal contact extending from a tail freely on the side of the female inlet mouth and having a contact portion adapted to make electrical contact with a metal contact of the plug.
  • the four central metal contacts of said series forming two pairs of contacts respectively connected to two pairs of electrical wires, are short contacts which follow a one-way path from their tail, and whose parts of contact are parallel to each other and oriented generally towards the front of said female inlet mouth, and in that the two end metal contacts, located at the two ends of said series, are long contacts which follow a path to two opposite directions, and whose contact portions are oriented generally towards the rear of said female inlet mouth.
  • the two metal end contacts of the weak female current socket according to the invention are capable of accepting a large elastic deformation generated by the insertion into the female inlet mouth of said plug of a male plug.
  • type "RJ 11" or “RJ 12” and the four central metal contacts of this socket weak female current are short, which improves the quality of transmission of high frequency signals by minimizing the induced current.
  • a female small power outlet 100 of the type "plug (jack) modular" such as a female telephone jack or computer intended in particular to establish the connection between a computer or telephone network and a computer or telephone cable of a particular device.
  • This socket weak female 100 of the type "plug (jack) modular” includes a body 110 of insulating material called “jack” having on one side a female inlet mouth (not visible in the figures) provided to receive a plug male (not shown) connected to an output cable.
  • This socket weak female 100 is of the type "RJ 45" adapted to receive a plug of the same type connected to an output cable usually comprising eight different sheathed electrical son arranged in four pairs of son forming four electrical circuits.
  • this small female current outlet 100 is adapted to receive a plug type "RJ 11" or "RJ 12" with four or six metal contacts connected to an output cable comprising four different sheathed electrical son or six electrical son different sheaths arranged in two or three pairs of wires forming electrical circuits.
  • UTP cable comprising unshielded electrical wires
  • FTP cable comprising electrical wires and a shield made by a metal strip surrounding the electrical wires
  • STP cable comprising eight electrical wires surrounded by in pairs of a metal strip, all eight son being further surrounded by a metal braid.
  • the body 110 of the weak female current socket 100 shown has, at the rear, an opening or window 111 of generally rectangular shape in which an insert "jack" is embedded. 130 mounted in an insulating support 131.
  • the insert "jack" 130 comprises an insulating plate 135 which carries a series of eight metal contacts 1, 2, 3, 4, 5, 6, 7, 8 aligned.
  • Each metal contact 1, 2, 3, 4, 5, 6, 7, 8 extends from a shank 1 ', 2', 3 ', 4', 5 ', 6', 7 ', 8' , by which it is adapted to be connected to an electric wire, freely on the side of the female inlet mouth and having a contact portion 1B, 2B, 3B, 4B, 5B, 6B, 7B, 8B capable of making a contact electric with a metal contact of the plug not shown.
  • the insulating support 131 is generally in the form of a frame with a central opening 132 revealing the contact portions 1B, 2B, 3B, 4B, 5B, 6B, 7B, 8B of the metal contacts 1, 2, 3, 4 , 5, 6, 7, 8. It is packed for this purpose eight bleeds 133A, 133B receiving a portion of these metal contacts. In contrast to the grooves 133A, 133B, the insulating support 131 has an opening 134 in which is mounted the insulating plate 135 carrying the eight metal contacts 1, 2, 3, 4, 5, 6, 7, 8.
  • the insert "jack” 130 When the insert "jack” 130 is mounted in its insulating support 131, it constitutes a single piece (see figure 3 ) intended to be inserted into the opening or the window 111 of the body 110 of the female weak current socket 100.
  • the insulating support 131 comprises, on each of its lateral flanks, a ratchet tooth 136 intended to snap into an opening 117 of the body 110 of the small female current receptacle 100.
  • the eight metal contacts 1, 2, 3, 4, 5, 6, 7, 8 form pairs 1/2, 3/6, 4/5, 7/8 to be connected to corresponding pairs of electrical wires.
  • the pairs 1/2 and 7/8 formed by the metal contacts 1, 2 and the metal contacts 7, 8 constitute the pairs of metal end contacts of the series of metal contacts
  • the pairs 3/6 and 4 / 5 constituted by the metal contacts 3, 6 and the metal contacts 4, 5 constitute the pairs of central metal contacts framed by the two pairs of end metal contacts.
  • the 3/6 pairs is an asymmetric pair because the metal contacts that constitute it are not positioned adjacent.
  • the eight metal contacts 1, 2, 3, 4, 5, 6, 7, 8 comprise tails 1 ', 2', 3 ', 4', 5 ', 6', 7 ', 8' in the form of a d pin, emerging from the insulating plate 135 at the rear of the body 110 of the weak female current socket 100 and intended to be forcibly engaged in the orifices 142 of a printed circuit support plate 140 supporting the insulation displacement metal contacts 143
  • the insulation displacement metal contacts 143 are force-fitted into the corresponding orifices 141 of the printed circuit support plate 140.
  • This printed circuit support plate 140 serves to make the electrical connection between the insulation displacement metal contacts 143 and the metal contacts 1, 2, 3, 4, 5, 6, 7, 8 of the "jack" insert 130.
  • the four central metal contacts 3, 4, 5, 6 of said series of metal contacts, forming the pairs 3/6 and 4/5 are short contacts which follow a one-way path from their tail 3 ', 4', 5 ', 6' to their free end 3C, 4C, 5C, 6C.
  • the contact portions 3B, 4B, 5B, 6B of these central metal contacts 3, 4, 5, 6 are mutually parallel and oriented generally towards the front of said female inlet mouth.
  • these contact portions 3B, 4B, 5B, 6B, central metal contacts 3, 4, 5, 6 have a generally slot-shaped shape and comprise at their end a spout 3C, 4C, 5C, 6C bearing against a flange 133C of the insulating support 131.
  • these central metal contacts 3, 4, 5, 6 have, between their tails 3 ', 4', 5 ', 6' and their contact portions 3B, 4B, 5B, 6B, play catching parts 3A, 4A. , 5A, 6A which follow different paths and which make it possible to make the connection between the tails 3 ', 4', 5 ', 6' arranged in staggered rows and the contact portions 3B, 4B, 5B, 6B aligned and parallel between they.
  • the series of eight metal contacts 1, 2, 3, 4, 5, 6, 7, 8 comprises two end metal contacts 1, 8 located at the two ends of said series, which are long contacts in a two-way path. opposed, and whose contact portions 1B, 8B are oriented generally towards the rear of said female inlet mouth.
  • the contact portions 1B, 8B of the long end metal contacts 1, 8 are oriented generally opposite the contact portions 3B, 4B, 5B, 6B of the central metal contacts 3, 4, 5 , 6 courts.
  • end metal contacts 1, 8 are part of two pairs 1/2, 7/8 each connected to a corresponding pair of electrical son.
  • the other end metal contacts 2, 7 are similar to the end metal contacts 1, 8.
  • pairs of long contacts 1/2, 7/8 follow paths in two opposite directions and whose contact parts 1B, 2B, 7B, 8B are parallel to each other and oriented generally towards the rear of said mouth of female entrance.
  • the contact portions 3B, 6B, 4B, 5B of the pairs 3/6, 4/5 have an identical length and the contact portions 1B, 2B, 7B, 8B of the pairs 1/2, 7/8 have an identical length.
  • each end metal contact 1, 2, 7, 8 has the general shape of a hairpin with two branches of different lengths 1A, 1B, 2A, 2B, 7A, 7B, 8A, 8B interconnected by a hinge connection 1C, 2C, 7C, 8C, the short leg 1B, 2B, 7B, 8B facing the rear of the female inlet mouth constituting said contact portion 1B, 2B, 7B, 8B, and the branch long 1A, 2A, 7A, 8A being located rearwardly relative to said short branch.
  • Each contact portion 1B, 2B, 7B, 8B of each end metal contact 1, 2, 7, 8 of said series has a 1D, 2D, 7D, 8D end free of any mechanical engagement with the insulating support 131.
  • each end metal contact 1, 2, 7, 8, located near the hinge connection 1C, 2C, 7C, 8C is supported on a flange 133D of the insulating support 131.
  • each end metal contact 1, 2, 7, 8 has an inflection oriented rearward of the female inlet mouth. It is at the inflection point that the electrical contact is established between these end metal contacts 1, 2, 7, 8 and the corresponding metal contacts of the plug inserted in the female inlet mouth of the socket. of weak female currents 100.
  • the long limb 1A, 2A, 7A, 8A of the end metal 1, 2, 7, 8 long hairpin-shaped contacts has different paths for catching the staggered positioning of the tails 1 ', 2', 7 ', 8' of said contacts. That is to say, there is a backlash play between the part of these aligned and parallel contacts and their tails positioned staggered.
  • the hairpin shape with two branches connected by a hinge connection gives these metal end contacts 1, 2, 7, 8 a high elasticity. Therefore, when a plug of the type "RJ 11" or “RJ 12" with four or six contacts is inserted into the female inlet of this weak power outlet intended to receive a plug type "RJ 45 ", these metal end contacts 1, 8, which are in both cases inoperative, can easily fade under the insulating body of said plug by deforming elastically, by mutual approximation of their two branches.
  • each end metal contact 1, 8 resiliently returns to its initial position in bearing against the insulating support 131, by placing itself at the same level as the contact portions 3B, 4B, 5B, 6B of the central metal contacts 3, 4, 5, 6 short as well as the contact portions 2B, 7B of the metal contacts d end 2, 7.
  • the central metal contacts 3, 4, 5, 6 short also have a certain elasticity to establish a good contact with the corresponding metal contacts of a male plug introduced into the female inlet mouth of the socket weak female currents 100.
  • the socket of weak female current 100 of the type "plug (jack) modular” includes means of fast connection of electric wires (not represented) coming from the input cable (not represented) in bars of connection 151, 152, in insulating material, comprising slots 151A, 152A for introducing the wires and housing insulating metal contacts 143.
  • the two connecting bars 151, 152 are disposed at the rear of the body 110 above it.
  • Slots 151A, 152A are arranged in parallel along their longitudinal direction.
  • connection means of the electrical wires coming from the network connection input cable comprise, for each connection strip 151 152, a pivoting cover 160, made of insulating material, capable of covering each connection strip 151, 152 and pushing the wires housed in said slots 151A, 152A introduction to force them into the insulation displacement metal contacts 143.
  • Said slots 151A, 152A make it possible to hold the electrical wires in position before they are force-fitted into the insulation displacement metal contacts under the action of the pivoting cover 160 folded down on the corresponding connection strip.
  • connection strips 151, 152 are separated by a central input path 156 of the electrical input cable from which the son to be connected.
  • the two pivot axes 155 of the associated pivoting lids 160 are located on either side of the central lane 156 on a longitudinal side of the female weak current socket 100.
  • the connecting strips 151, 152 are part of a single piece 150, called a "terminal block", made by molding a plastic material, and the central channel 156 has a cradle-shaped bottom of the cable input and making the connection between the two connection bars 151, 152.
  • the terminal block 150 has on its underside, at the four corners, vertical studs 153 intended to be inserted into corresponding openings 114 provided on the rear face of the body 110.
  • the vertical studs 153 serve, on the one hand, to centering of the terminal block 150 on the rear face of the body 110, and, secondly, the securing of said terminal block 150 to the body 110 by ultrasonic welding.
  • each pivoting cover 160 is integral with the connecting bar 151, 152 associated and comes from forming by molding with said connecting strip.
  • Each pivoting lid 160 is a piece of insulating material, for example made of plastics material, produced by molding, and comprises at one end a clip 161 for its snap-fitting assembly on the pivot axis 155.
  • each pivoting cover 160 has a ratchet tooth 162 for locking it in a lowered position on the connecting bar 151, 152 associated.
  • each connection strip 151, 152 comprises, opposite the pivot axis 155, a ratchet tooth 154 for hooking the corresponding ratchet tooth 162 of the associated pivot cover 160.
  • This ratchet tooth 154 is formed by the connection bar 151, 152
  • Each pivoting cover 160 carries, on its inner side turned towards the connecting bar 151, 152 associated, vertical partitions 163 arranged so that, when the pivoting lid is lowered by pivoting towards the corresponding bar, these vertical partitions 163 sink in the slots 151A, 152A for pushing the prepositioned wires in said insertion slots of the connecting bar 151, 152 towards the insulation displacement metal contacts 143.
  • each electrical wire in each insulation displacement metal contact the cutting blades of the insulation displacement metal contacts transversely cut the insulating sheath of the electrical wire to establish an electrical contact between the conductive core of the wire and the metal contact itself. even.
  • the pivotal mounting of the pivoting cover 160 makes it possible to engage, one after another, the wires in the metal insulation displacement contacts without requiring a high pressure force.
  • the female low current plug 100 comprises a cable clamp 170 which is a piece of metal material, U-shaped or jumper mounted on the lateral sides of the body 110 by means of a cooperation notches 171 provided on the cable clamp 170 with a succession of notches 116 provided on the body 110.
  • a cable clamp 170 which is a piece of metal material, U-shaped or jumper mounted on the lateral sides of the body 110 by means of a cooperation notches 171 provided on the cable clamp 170 with a succession of notches 116 provided on the body 110.
  • terminal block 150 there is provided on the terminal block 150 a plastic positioner 157, foldable towards the slots 151A, 152A for holding the cable before its connection in the slots of the terminal block.
  • the cable clamp made of metallic material, is used to create a metal shielding cage around the input cable and to hold the input cable in order to avoid, when handling the socket, any effort on the electrical connections established between said wires and the metal insulation displacement contacts.
  • the female low current plug 100 comprises a screen 120 made of metallic material and which serves to link the shielding of the input cable and the shielding of the output cable.
  • the screen 120 comprises a horseshoe-shaped front portion with two parallel vertical tabs introduced into openings of the body 110 of the female weak current receptacle 100.
  • openings open into the female inlet mouth so that the metal flanks of the plug of the output cable, introduced into said female inlet mouth, come into contact with said tabs of the screen 120.
  • the screen 120 comprises, in the rear part, parallel flanks adapted to be folded into the cradle 156 provided between the two connection bars 151, 152.
  • the screen 120 is connected to the shielding of the input cable via tabs which make electrical contact with the drain of the shield.
  • the body 110 of the small female current tap 100 comprises, on its two longitudinal lateral outer faces, teeth 115 for mounting a not shown hub cap.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Description

La présente invention concerne une prise de courants faibles du type "prise (jack) modulaire", telle qu'une prise femelle téléphonique ou informatique, destinée notamment à établir la connexion entre un réseau informatique ou téléphonique et un câble informatique ou téléphonique d'un appareil particulier.The present invention relates to a weak current jack of the type "plug (jack) modular", such as a telephone or computer socket, intended in particular to establish the connection between a computer or telephone network and a computer or telephone cable of a particular apparatus.

Une prise femelle informatique du type "RJ 45" comprend généralement un corps en matière isolante comportant une bouche d'entrée femelle adaptée à recevoir une fiche mâle du type "RJ 45", et une série de huit contacts métalliques alignés, chaque contact métallique s'étendant à partir d'une queue librement du côté de la bouche d'entrée femelle et présentant une partie de contact adaptée à établir un contact électrique avec un contact métallique de la fiche mâle.A computer socket type "RJ 45" generally comprises a body of insulating material having a female inlet mouth adapted to receive a plug type "RJ 45", and a series of eight aligned metal contacts, each metal contact s extending from a shank freely on the side of the female inlet mouth and having a contact portion adapted to make electrical contact with a metal contact of the plug.

Les huit contacts sont destinés à être reliés par paire à des paires de fils électriques qui forment chacune un seul circuit électrique.The eight contacts are intended to be connected in pairs to pairs of electrical wires which each form a single electrical circuit.

Dans certains pays, les prises de courant femelles téléphoniques peuvent comprendre seulement quatre ou six contacts métalliques (prise du type "RJ 11" ou "RJ 12") placés dans un corps en matière isolante du même type que celui d'une prise femelle informatique telle que précitée.In some countries, female telephone sockets may include only four or six metal contacts ("RJ 11" or "RJ 12" type plug) placed in a body of insulating material of the same type as that of a computer socket. as mentioned above.

Elles sont alors aptes à recevoir une fiche mâle à quatre ou six contacts métalliques du type fiche mâle "RJ 11" ou "RJ 12".They are then able to receive a plug with four or six metal contacts of the plug type "RJ 11" or "RJ 12".

En outre, dans ces pays, les installations téléphoniques et informatiques des espaces de bureaux ouverts ou modulaires comprennent souvent seulement des prises femelles informatiques du type "RJ 45" à huit contacts métalliques qui sont utilisées aussi bien pour la transmission de données informatiques que pour la transmission de données téléphoniques.In addition, in these countries, telephone and computer facilities in open or modular office spaces often include only eight RJ45 type "RJ45" female computer sockets that are used for both computer data transmission and data transmission. telephone data transmission.

Ainsi, dans ce cas, les fiches mâles téléphoniques du type "RJ 11" ou "RJ 12", moins larges que les fiches mâles informatiques du type "RJ 45", sont insérées dans les prises femelles informatiques du type "RJ 45" dont seulement quatre ou six contacts métalliques sont utilisés.Thus, in this case, the telephone plugs of the type "RJ 11" or "RJ 12", narrower than the computer plugs of the type "RJ 45", are inserted in the computer jacks of the type "RJ 45" which only four or six metal contacts are used.

Toutefois, lorsqu'une fiche mâle du type "RJ 11" ou "RJ 12" est insérée dans une prise femelle du type "RJ 45", son corps isolant écrase les contacts métalliques d'extrémité non utilisés de la prise femelle du type "RJ 45" qui subissent alors de fortes contraintes de déformation.However, when a plug of the type "RJ 11" or "RJ 12" is inserted in a socket type "RJ 45", its insulating body overwrites the unused end metal contacts of the socket type " RJ 45 "which then undergo strong deformation stresses.

Bien que les contacts métalliques des prises femelles du type "RJ 45" sont constitués par des branches élastiquement déformables, il arrive souvent que, lors d'une insertion d'une fiche mâle du type "RJ 11" ou "RJ 12" dans une prise femelle du type "RJ 45", ces contacts métalliques d'extrémité dépassent leur limite élastique et deviennent alors inutilisables avec une fiche mâle du type "RJ 45".Although the metal contacts of the "RJ 45" type sockets are constituted by elastically deformable branches, it often happens that when inserting a plug of the "RJ 11" or "RJ 12" type in a female socket type "RJ 45", these metal end contacts exceed their elastic limit and then become unusable with a plug type "RJ 45".

On connaît déjà par les documents WO 97/41624 et US 6,244,908 des prises femelles capables de recevoir aussi bien une fiche mâle du type "RJ 45" que du type "RJ11".We already know from the documents WO 97/41624 and US 6,244,908 female sockets capable of receiving both a plug type "RJ 45" type "RJ11".

Par ailleurs, lors de la transmission de signaux à hautes fréquences, des phénomènes parasitaires de diaphonie peuvent apparaître entre les différentes paires de contacts métalliques d'une prise de courants faibles femelle du type "RJ 45" en contact avec les paires de contacts métalliques correspondantes de la fiche mâle du type "RJ 45".Moreover, during the transmission of high frequency signals, parasitic crosstalk phenomena may appear between the different pairs of metal contacts of a female "RJ 45" type low-current receptacle in contact with the corresponding pairs of metal contacts. of the plug of the type "RJ 45".

Ces phénomènes parasitaires de diaphonie sont néfastes à la transmission du message véhiculé et augmentent avec la fréquence d'utilisation de ces prises "informatiques".These parasitic phenomena of crosstalk are harmful to the transmission of the message conveyed and increase with the frequency of use of these "computerized" catches.

Les phénomènes parasitaires de diaphonie sont favorisés par la proximité de longueurs de contacts métalliques parallèles, puisqu'il s'agit de courant induit. Les paires de contacts métalliques critiques sont généralement les paires de contacts métalliques centraux constituées par les contacts métalliques portant les numéros 3 et 6 d'une part, et 4 et 5 d'autre part. Il s'agit, en effet, des paires de contacts métalliques dont chaque contact métallique est encadré d'autres contacts métalliques.The parasitic phenomena of crosstalk are favored by the proximity of lengths of parallel metallic contacts, since it is an induced current. The pairs of critical metal contacts are generally the pairs of central metal contacts constituted by the metal contacts bearing the numbers 3 and 6 on the one hand, and 4 and 5 on the other hand. It is, in fact, pairs of metal contacts, each metal contact is framed by other metal contacts.

Pour minimiser ces phénomènes parasitaires de diaphonie, il existe actuellement plusieurs solutions déjà connues.To minimize these parasitic phenomena of crosstalk, there are currently several solutions already known.

Une de ces solutions consiste à croiser les contacts métalliques concernés à des endroits particuliers afin de créer un courant induit de phase opposée qui est apte à annuler le premier courant induit provoquant le phénomène parasitaire de diaphonie lors de la transmission des signaux à hautes fréquences.One of these solutions consists of intersecting the metal contacts concerned at particular locations in order to create an opposite phase induced current which is able to cancel the first induced current causing the parasitic phenomenon of crosstalk during the transmission of high frequency signals.

Une autre solution connue consiste à réduire les longueurs parallèles de contacts métalliques.Another known solution is to reduce the parallel lengths of metal contacts.

Enfin, une autre solution connue consiste à prévoir au sein de la prise de courants faibles femelle des compensations adaptées sur un circuit imprimé.Finally, another known solution is to provide within the socket weak female currents compensations adapted to a printed circuit.

Afin de pallier l'ensemble des inconvénients précités, la présente invention propose une nouvelle prise de courants faibles femelle du type "prise (jack) modulaire", qui est apte à être utilisée avec une fiche mâle à huit, six ou quatre contacts métalliques, sans dégradation des contacts métalliques d'extrémité, et qui présente de bonnes performances de transmission des signaux à hautes fréquences.In order to overcome all of the aforementioned drawbacks, the present invention proposes a new female low current plug of the "modular jack" type, which is suitable for use with an eight-pin plug, six or four metal contacts, without degradation of the end metal contacts, and which has good performance of transmission of high frequency signals.

Plus particulièrement, selon la présente invention, la prise de courants faibles femelle du type "prise (jack) modulaire" comprend un corps en matière isolante comportant une bouche d'entrée femelle adaptée à recevoir une fiche mâle, et une série de huit contacts métalliques alignés, chaque contact métallique s'étendant à partir d'une queue librement du côté de la bouche d'entrée femelle et présentant une partie de contact apte à établir un contact électrique avec un contact métallique de la fiche mâle. Elle est caractérisée en ce que les quatre contacts métalliques centraux de ladite série, formant deux paires de contacts reliées respectivement à deux paires de fils électriques, sont des contacts courts qui suivent un trajet à sens unique à partir de leur queue, et dont les parties de contact sont parallèles entre elles et orientées globalement vers l'avant de ladite bouche d'entrée femelle, et en ce que les deux contacts métalliques d'extrémité, situés aux deux extrémités de ladite série, sont des contacts longs qui suivent un trajet à deux sens opposés, et dont les parties de contact sont orientées globalement vers l'arrière de ladite bouche d'entrée femelle.More particularly, according to the present invention, the socket of small female current of the type "plug (jack) modular" comprises a body of insulating material having a female inlet mouth adapted to receive a plug, and a series of eight metal contacts aligned, each metal contact extending from a tail freely on the side of the female inlet mouth and having a contact portion adapted to make electrical contact with a metal contact of the plug. It is characterized in that the four central metal contacts of said series, forming two pairs of contacts respectively connected to two pairs of electrical wires, are short contacts which follow a one-way path from their tail, and whose parts of contact are parallel to each other and oriented generally towards the front of said female inlet mouth, and in that the two end metal contacts, located at the two ends of said series, are long contacts which follow a path to two opposite directions, and whose contact portions are oriented generally towards the rear of said female inlet mouth.

Ainsi, les deux contacts métalliques d'extrémité de la prise de courants faibles femelle selon l'invention sont capables d'accepter une déformation élastique importante engendrée par l'insertion dans la bouche d'entrée femelle de ladite prise d'une fiche mâle du type "RJ 11" ou "RJ 12", et les quatre contacts métalliques centraux de cette prise de courants faibles femelle sont courts, ce qui permet d'améliorer la qualité de la transmission des signaux à hautes fréquences par minimisation du courant induit.Thus, the two metal end contacts of the weak female current socket according to the invention are capable of accepting a large elastic deformation generated by the insertion into the female inlet mouth of said plug of a male plug. type "RJ 11" or "RJ 12", and the four central metal contacts of this socket weak female current are short, which improves the quality of transmission of high frequency signals by minimizing the induced current.

D'autres caractéristiques non limitatives et avantageuses de la présente l'invention sont les suivantes :

  • les deux paires de contacts métalliques d'extrémité, reliées chacune à une paire de fils électriques, sont des paires de contacts longs qui suivent un trajet à deux sens opposés, et dont les parties de contact sont parallèles entre elles et orientées globalement vers l'arrière de ladite bouche d'entrée femelle ;
  • chaque partie de contact de chaque contact long de ladite série présente une extrémité libre de tout engagement mécanique avec un support isolant ;
  • chaque contact métallique d'extrémité présente la forme générale d'une épingle à cheveux avec deux branches de différentes longueurs reliées entre elles par une liaison formant charnière, la branche courte orientée vers l'arrière de la bouche d'entrée femelle constituant ladite partie de contact, et la branche longue étant située en arrière par rapport à ladite branche courte ;
  • la partie de contact de chaque contact métallique d'extrémité présente une inflexion orientée vers l'arrière de la bouche d'entrée femelle ;
  • les parties de contact des contacts métalliques centraux comprennent, à leur extrémité, un bec prenant appui contre un support isolant ;
  • les parties de contact des contacts métalliques centraux présentent une forme globalement en créneau ;
  • la partie de contact de chaque contact métallique d'extrémité est plus courte que la partie de contact de chaque contact métallique central ;
  • les parties de contact des contacts métalliques centraux sont de longueur identique et les parties de contact des contacts métalliques d'extrémité sont de longueur identique ;
  • les contacts métalliques sont solidaires d'une plaque isolante, les queues desdits contacts métalliques émergeant de ladite plaque isolante vers l'arrière du corps et présentant une forme en tête d'épingle pour être introduites à force dans des orifices d'une plaque support de circuit imprimé ;
  • les queues des contacts métalliques sont disposées en quinconce sur la plaque isolante, et chaque contact métallique central comporte, entre sa queue et sa partie de contact, une partie de rattrapage de jeu ; et
  • la prise de courant comprend un support isolant garni de huit saignées recevant lesdits contacts métalliques, ce support isolant étant reçu dans une ouverture située à l'arrière dudit corps.
Other non-limiting and advantageous features of the present invention are as follows:
  • the two pairs of end metal contacts, each connected to a pair of electrical wires, are pairs of long contacts which follow a path in two opposite directions and whose contact parts are parallel to each other and oriented generally towards the rear of said female inlet mouth;
  • each contact portion of each contact along said series has a free end of any mechanical engagement with an insulating support;
  • each end metal contact has the general shape of a hairpin with two branches of different lengths interconnected by a hinge connection, the short branch facing the rear of the female inlet mouth constituting said portion of contact, and the long branch being located behind said short branch;
  • the contact portion of each end metal contact has an inflection oriented rearward of the female inlet mouth;
  • the contact portions of the central metal contacts comprise, at their end, a spout bearing against an insulating support;
  • the contact portions of the central metal contacts have a generally slot-shaped shape;
  • the contact portion of each end metal contact is shorter than the contact portion of each central metal contact;
  • the contact portions of the central metal contacts are of identical length and the contact portions of the end metal contacts are of identical length;
  • the metal contacts are integral with an insulating plate, the tails of said metal contacts emerging from said insulating plate towards the rear of the body and having a pinhead shape to be forced into holes in a support plate of printed circuit board ;
  • the tails of the metal contacts are arranged in staggered rows on the insulating plate, and each central metal contact comprises, between its tail and its contact part, a play catching part; and
  • the socket comprises an insulating support filled with eight grooves receiving said metal contacts, this insulating support being received in an opening at the rear of said body.

La description qui va suivre en regard des dessins annexés, donnés à titre d'exemples non limitatifs, fera bien comprendre en quoi consiste l'invention et comment elle peut être réalisée.The following description with reference to the accompanying drawings, given as non-limiting examples, will make it clear what the invention consists of and how it can be achieved.

Sur les dessins annexés :

  • la figure 1 est une vue en perspective éclatée d'une prise de courants faibles du type "prise (jack) modulaire" selon l'invention ;
  • la figure 2A est une vue de détail en perspective du support isolant de l'insert "jack" de la prise de courants faibles représentée sur la figure 1 ;
  • la figure 2B est une vue de détail en perspective de l'insert "jack" de la prise de courants faibles de la figure 1 ;
  • la figure 3 est une vue en perspective de l'insert "jack" de la figure 2B monté dans le support isolant de la figure 2A ;
  • la figure 4 est une vue en coupe selon la ligne IV suivant le contact 4 de l'insert "jack" de la figure 3 ;
  • la figure 5 est une vue en coupe selon la ligne V suivant le contact 5 de l'insert "jack" de la figure 3 ;
  • la figure 6 est une vue en coupe selon la ligne VI suivant le contact 7 de l'insert "jack" de la figure 3 ; et
  • la figure 7 est une vue en coupe selon la ligne VII suivant le contact 8 de l'insert "jack" de la figure 3.
In the accompanying drawings:
  • the figure 1 is an exploded perspective view of a weak current plug of the type "plug (jack) modular" according to the invention;
  • the Figure 2A is a detail view in perspective of the insulating support of the insert "jack" of the weak current socket shown on the figure 1 ;
  • the Figure 2B is a detailed perspective view of the "jack" insert of the weak current socket of the figure 1 ;
  • the figure 3 is a perspective view of the insert "jack" of the Figure 2B mounted in the insulating support of the Figure 2A ;
  • the figure 4 is a sectional view along the line IV following the contact 4 of the insert "jack" of the figure 3 ;
  • the figure 5 is a sectional view along the line V following the contact 5 of the insert "jack" of the figure 3 ;
  • the figure 6 is a sectional view along the line VI following the contact 7 of the insert "jack" of the figure 3 ; and
  • the figure 7 is a sectional view along the line VII following the contact 8 of the insert "jack" of the figure 3 .

Sur les figures, on a représenté une prise de courants faibles femelle 100 du type "prise (jack) modulaire" telle qu'une prise femelle téléphonique ou informatique destinée notamment à établir la connexion entre un réseau informatique ou téléphonique et un câble informatique ou téléphonique d'un appareil particulier.In the figures, there is shown a female small power outlet 100 of the type "plug (jack) modular" such as a female telephone jack or computer intended in particular to establish the connection between a computer or telephone network and a computer or telephone cable of a particular device.

Cette prise de courants faibles femelle 100 du type "prise (jack) modulaire" comprend un corps 110 en matière isolante appelé "jack" comportant d'un côté une bouche d'entrée femelle (non visible sur les figures) prévue pour recevoir une fiche mâle (non représentée) connectée à un câble de sortie.This socket weak female 100 of the type "plug (jack) modular" includes a body 110 of insulating material called "jack" having on one side a female inlet mouth (not visible in the figures) provided to receive a plug male (not shown) connected to an output cable.

Cette prise de courants faibles femelle 100 est du type "RJ 45" adaptée à recevoir une fiche mâle du même type connectée à un câble de sortie comprenant usuellement huit fils électriques gainés différents agencés en quatre paires de fils formant quatre circuits électriques.This socket weak female 100 is of the type "RJ 45" adapted to receive a plug of the same type connected to an output cable usually comprising eight different sheathed electrical son arranged in four pairs of son forming four electrical circuits.

En outre, cette prise de courants faibles femelle 100 est adaptée à recevoir une fiche mâle du type "RJ 11" ou "RJ 12" à quatre ou six contacts métalliques connectée à un câble de sortie comprenant quatre fils électriques gainés différents ou six fils électriques gainés différents agencés en deux ou trois paires de fils formant des circuits électriques.In addition, this small female current outlet 100 is adapted to receive a plug type "RJ 11" or "RJ 12" with four or six metal contacts connected to an output cable comprising four different sheathed electrical son or six electrical son different sheaths arranged in two or three pairs of wires forming electrical circuits.

Il existe actuellement trois types de câbles, le câble dit UTP comprenant des fils électriques non blindés, le câble dit FTP comprenant des fils électriques et un blindage réalisé par un feuillard métallique entourant les fils électriques, et le câble dit STP comprenant huit fils électriques entourés par paire d'un feuillard métallique, l'ensemble des huit fils étant en outre entouré d'une tresse métallique.There are currently three types of cables, the so-called UTP cable comprising unshielded electrical wires, the FTP cable comprising electrical wires and a shield made by a metal strip surrounding the electrical wires, and the STP cable comprising eight electrical wires surrounded by in pairs of a metal strip, all eight son being further surrounded by a metal braid.

En regard de la bouche d'entrée femelle non représentée, le corps 110 de la prise de courants faibles femelle 100 représentée comporte, à l'arrière, une ouverture ou fenêtre 111 de forme globalement rectangulaire dans laquelle vient s'encastrer un insert "jack" 130 monté dans un support isolant 131.Opposite the female inlet mouth (not shown), the body 110 of the weak female current socket 100 shown has, at the rear, an opening or window 111 of generally rectangular shape in which an insert "jack" is embedded. 130 mounted in an insulating support 131.

Comme le montre plus particulièrement la figure 2B, l'insert "jack" 130 comporte une plaque isolante 135 qui porte une série de huit contacts métalliques 1, 2, 3, 4, 5, 6, 7, 8 alignés. Chaque contact métallique 1, 2, 3, 4, 5, 6, 7, 8 s'étend à partir d'une queue 1', 2', 3', 4', 5', 6', 7', 8', par laquelle il est apte à être raccordé à un fil électrique, librement du côté de la bouche d'entrée femelle et présentant une partie de contact 1B, 2B, 3B, 4B, 5B, 6B, 7B, 8B apte à établir un contact électrique avec un contact métallique de la fiche mâle non représentée.As shown more particularly in Figure 2B , the insert "jack" 130 comprises an insulating plate 135 which carries a series of eight metal contacts 1, 2, 3, 4, 5, 6, 7, 8 aligned. Each metal contact 1, 2, 3, 4, 5, 6, 7, 8 extends from a shank 1 ', 2', 3 ', 4', 5 ', 6', 7 ', 8' , by which it is adapted to be connected to an electric wire, freely on the side of the female inlet mouth and having a contact portion 1B, 2B, 3B, 4B, 5B, 6B, 7B, 8B capable of making a contact electric with a metal contact of the plug not shown.

Le support isolant 131 se présente généralement sous la forme d'un cadre avec une ouverture centrale 132 laissant apparaître les parties de contact 1B, 2B, 3B, 4B, 5B, 6B, 7B, 8B des contacts métalliques 1, 2, 3, 4, 5, 6, 7, 8. II est garni à cet effet de huit saignées 133A, 133B recevant une partie de ces contacts métalliques. A l'opposé des saignées 133A, 133B, le support isolant 131 comporte une ouverture 134 dans laquelle est montée la plaque isolante 135 portant les huit contacts métalliques 1, 2, 3, 4, 5, 6, 7, 8.The insulating support 131 is generally in the form of a frame with a central opening 132 revealing the contact portions 1B, 2B, 3B, 4B, 5B, 6B, 7B, 8B of the metal contacts 1, 2, 3, 4 , 5, 6, 7, 8. It is packed for this purpose eight bleeds 133A, 133B receiving a portion of these metal contacts. In contrast to the grooves 133A, 133B, the insulating support 131 has an opening 134 in which is mounted the insulating plate 135 carrying the eight metal contacts 1, 2, 3, 4, 5, 6, 7, 8.

Lorsque l'insert "jack" 130 est monté dans son support isolant 131, il constitue une pièce unique (voir figure 3) destinée à être insérée dans l'ouverture ou la fenêtre 111 du corps 110 de la prise de courants faibles femelle 100.When the insert "jack" 130 is mounted in its insulating support 131, it constitutes a single piece (see figure 3 ) intended to be inserted into the opening or the window 111 of the body 110 of the female weak current socket 100.

A cet effet, le support isolant 131 comprend, sur chacun de ses flancs latéraux, une dent d'encliquetage 136 destinée à s'encliqueter dans une ouverture 117 du corps 110 de la prise de courants faibles femelle 100.For this purpose, the insulating support 131 comprises, on each of its lateral flanks, a ratchet tooth 136 intended to snap into an opening 117 of the body 110 of the small female current receptacle 100.

Comme le montre plus particulièrement la figure 2B, les huit contacts métalliques 1, 2, 3, 4, 5, 6, 7, 8 forment des paires 1/2, 3/6, 4/5, 7/8 destinées à être reliées à des paires correspondantes de fils électriques.As shown more particularly in Figure 2B the eight metal contacts 1, 2, 3, 4, 5, 6, 7, 8 form pairs 1/2, 3/6, 4/5, 7/8 to be connected to corresponding pairs of electrical wires.

Selon la disposition des contacts métalliques représentée sur la figure 2B, les paires 1/2 et 7/8 formées par les contacts métalliques 1, 2 et les contacts métalliques 7, 8 constituent les paires de contacts métalliques d'extrémité de la série de contacts métalliques, et les paires 3/6 et 4/5 constituées par les contacts métalliques 3, 6 et les contacts métalliques 4, 5 constituent les paires de contacts métalliques centraux encadrées par les deux paires de contacts métalliques d'extrémité. La paires 3/6 est une paire asymétrique du fait que les contacts métalliques qui la constituent ne sont pas positionnés de manière adjacente.According to the arrangement of the metal contacts shown on the Figure 2B , the pairs 1/2 and 7/8 formed by the metal contacts 1, 2 and the metal contacts 7, 8 constitute the pairs of metal end contacts of the series of metal contacts, and the pairs 3/6 and 4 / 5 constituted by the metal contacts 3, 6 and the metal contacts 4, 5 constitute the pairs of central metal contacts framed by the two pairs of end metal contacts. The 3/6 pairs is an asymmetric pair because the metal contacts that constitute it are not positioned adjacent.

Les huit contacts métalliques 1, 2, 3, 4, 5, 6, 7, 8 comportent des queues 1', 2', 3', 4', 5', 6', 7', 8' en forme de tête d'épingle, émergeant de la plaque isolante 135 à l'arrière du corps 110 de la prise de courants faibles femelle 100 et destinées à être engagées à force dans des orifices 142 d'une plaque support de circuit imprimé 140 supportant des contacts métalliques autodénudants 143. Les contacts métalliques autodénudants 143 sont emmanchés à force dans les orifices 141 correspondants de la plaque support de circuit imprimé 140.The eight metal contacts 1, 2, 3, 4, 5, 6, 7, 8 comprise tails 1 ', 2', 3 ', 4', 5 ', 6', 7 ', 8' in the form of a d pin, emerging from the insulating plate 135 at the rear of the body 110 of the weak female current socket 100 and intended to be forcibly engaged in the orifices 142 of a printed circuit support plate 140 supporting the insulation displacement metal contacts 143 The insulation displacement metal contacts 143 are force-fitted into the corresponding orifices 141 of the printed circuit support plate 140.

Cette plaque support de circuit imprimé 140 sert à faire le lien électrique entre les contacts métalliques autodénudants 143 et les contacts métalliques 1, 2, 3, 4, 5, 6, 7, 8 de l'insert "jack" 130.This printed circuit support plate 140 serves to make the electrical connection between the insulation displacement metal contacts 143 and the metal contacts 1, 2, 3, 4, 5, 6, 7, 8 of the "jack" insert 130.

Avantageusement, comme le montrent les figures 2B, 3, 4 et 5, les quatre contacts métalliques centraux 3, 4, 5, 6 de ladite série de contacts métalliques, formant les paires 3/6 et 4/5, sont des contacts courts qui suivent un trajet à sens unique à partir de leur queue 3', 4', 5', 6' jusqu'à leur extrémité libre 3C, 4C, 5C, 6C.Advantageously, as shown by Figures 2B , 3 , 4 and 5 the four central metal contacts 3, 4, 5, 6 of said series of metal contacts, forming the pairs 3/6 and 4/5, are short contacts which follow a one-way path from their tail 3 ', 4', 5 ', 6' to their free end 3C, 4C, 5C, 6C.

Les parties de contact 3B, 4B, 5B, 6B de ces contacts métalliques centraux 3, 4, 5, 6 sont parallèles entre elles et orientées globalement vers l'avant de ladite bouche d'entrée femelle.The contact portions 3B, 4B, 5B, 6B of these central metal contacts 3, 4, 5, 6 are mutually parallel and oriented generally towards the front of said female inlet mouth.

Ici, avantageusement, ces parties de contact 3B, 4B, 5B, 6B, des contacts métalliques centraux 3, 4, 5, 6 présentent une forme globalement en créneau et comportent à leur extrémité un bec 3C, 4C, 5C, 6C prenant appui contre un rebord 133C du support isolant 131.Here, advantageously, these contact portions 3B, 4B, 5B, 6B, central metal contacts 3, 4, 5, 6 have a generally slot-shaped shape and comprise at their end a spout 3C, 4C, 5C, 6C bearing against a flange 133C of the insulating support 131.

C'est au niveau de la partie surélevée du créneau que le contact électrique s'établit entre chaque contact métallique central 3, 4, 5, 6 et le contact métallique correspondant de la fiche mâle insérée dans la bouche d'entrée femelle de la prise de courants faible femelle 100.It is at the level of the elevated portion of the slot that the electrical contact is established between each central metal contact 3, 4, 5, 6 and the corresponding metal contact of the plug inserted in the female inlet mouth of the socket. of weak female currents 100.

Ainsi, ces contacts métalliques centraux 3, 4, 5, 6 formant les deux paires 3/6, 4/5 sensibles aux phénomènes parasitaires de diaphonie sont suffisamment courts pour limiter ces phénomènes du fait que leurs parties de contact parallèles sont courtes.Thus, these central metal contacts 3, 4, 5, 6 forming the two pairs 3/6, 4/5 sensitive parasitic crosstalk phenomena are short enough to limit these phenomena because their parallel contact portions are short.

En outre, comme le montre la figure 2B et les figures 4 et 5, ces contacts métalliques centraux 3, 4, 5, 6 présentent, entre leurs queues 3', 4', 5', 6' et leurs parties de contact 3B, 4B, 5B, 6B, des parties de rattrapage de jeu 3A, 4A, 5A, 6A qui suivent des trajets différents et qui permettent d'effectuer la liaison entre les queues 3', 4', 5', 6' disposées en quinconce et les parties de contacts 3B, 4B, 5B, 6B alignées et parallèles entre elles.In addition, as shown in Figure 2B and the Figures 4 and 5 these central metal contacts 3, 4, 5, 6 have, between their tails 3 ', 4', 5 ', 6' and their contact portions 3B, 4B, 5B, 6B, play catching parts 3A, 4A. , 5A, 6A which follow different paths and which make it possible to make the connection between the tails 3 ', 4', 5 ', 6' arranged in staggered rows and the contact portions 3B, 4B, 5B, 6B aligned and parallel between they.

La série des huit contacts métalliques 1, 2, 3, 4, 5, 6, 7, 8 comporte deux contacts métalliques d'extrémité 1, 8 situés aux deux extrémités de ladite série, qui sont des contacts longs suivant un trajet en deux sens opposés, et dont les parties de contacts 1B, 8B sont orientées globalement vers l'arrière de ladite bouche d'entrée femelle.The series of eight metal contacts 1, 2, 3, 4, 5, 6, 7, 8 comprises two end metal contacts 1, 8 located at the two ends of said series, which are long contacts in a two-way path. opposed, and whose contact portions 1B, 8B are oriented generally towards the rear of said female inlet mouth.

En d'autres termes, les parties de contact 1B, 8B des contacts métalliques d'extrémité 1, 8 longs sont orientées globalement à l'opposé des parties de contact 3B, 4B, 5B, 6B des contacts métalliques centraux 3, 4, 5, 6 courts.In other words, the contact portions 1B, 8B of the long end metal contacts 1, 8 are oriented generally opposite the contact portions 3B, 4B, 5B, 6B of the central metal contacts 3, 4, 5 , 6 courts.

Ces contacts métalliques d'extrémité 1, 8 font partie des deux paires 1/2, 7/8 reliées chacune à une paire correspondante de fils électriques.These end metal contacts 1, 8 are part of two pairs 1/2, 7/8 each connected to a corresponding pair of electrical son.

Dans ces deux paires, les autres contacts métalliques d'extrémité 2, 7 sont similaires aux contacts métalliques d'extrémité 1, 8.In these two pairs, the other end metal contacts 2, 7 are similar to the end metal contacts 1, 8.

Ainsi, les paires de contacts longs 1/2, 7/8 suivent des trajets en deux sens opposés et dont les parties de contact 1B, 2B, 7B, 8B sont parallèles entre elles et orientées globalement vers l'arrière de ladite bouche d'entrée femelle.Thus, the pairs of long contacts 1/2, 7/8 follow paths in two opposite directions and whose contact parts 1B, 2B, 7B, 8B are parallel to each other and oriented generally towards the rear of said mouth of female entrance.

Les parties de contact 3B, 6B, 4B, 5B des paires 3/6, 4/5 présentent une longueur identique et les parties de contact 1B, 2B, 7B, 8B des paires 1/2, 7/8 présentent une longueur identique.The contact portions 3B, 6B, 4B, 5B of the pairs 3/6, 4/5 have an identical length and the contact portions 1B, 2B, 7B, 8B of the pairs 1/2, 7/8 have an identical length.

Plus particulièrement, comme le montrent la figure 2B et les figures 6 et 7, chaque contact métallique d'extrémité 1, 2, 7, 8 présente la forme générale d'une épingle à cheveux avec des deux branches de différentes longueurs 1A, 1B, 2A, 2B, 7A, 7B, 8A, 8B reliées entre elles par une liaison formant charnière 1C, 2C, 7C, 8C, la branche courte 1B, 2B, 7B, 8B orientée vers l'arrière de la bouche d'entrée femelle constituant ladite partie de contact 1B, 2B, 7B, 8B, et la branche longue 1A, 2A, 7A, 8A étant située en arrière par rapport à ladite branche courte.In particular, as shown by the Figure 2B and the Figures 6 and 7 each end metal contact 1, 2, 7, 8 has the general shape of a hairpin with two branches of different lengths 1A, 1B, 2A, 2B, 7A, 7B, 8A, 8B interconnected by a hinge connection 1C, 2C, 7C, 8C, the short leg 1B, 2B, 7B, 8B facing the rear of the female inlet mouth constituting said contact portion 1B, 2B, 7B, 8B, and the branch long 1A, 2A, 7A, 8A being located rearwardly relative to said short branch.

Chaque partie de contact 1B, 2B, 7B, 8B de chaque contact métallique d'extrémité 1, 2, 7, 8 de ladite série présente une extrémité 1D, 2D, 7D, 8D libre de tout engagement mécanique avec le support isolant 131.Each contact portion 1B, 2B, 7B, 8B of each end metal contact 1, 2, 7, 8 of said series has a 1D, 2D, 7D, 8D end free of any mechanical engagement with the insulating support 131.

Par ailleurs, l'extrémité de la partie de contact 1B, 2B, 7B, 8B de chaque contact métallique d'extrémité 1, 2, 7, 8, située à proximité de la liaison formant charnière 1C, 2C, 7C, 8C (voir figures 6 et 7), prend appui sur un rebord 133D du support isolant 131.Furthermore, the end of the contact portion 1B, 2B, 7B, 8B of each end metal contact 1, 2, 7, 8, located near the hinge connection 1C, 2C, 7C, 8C (see Figures 6 and 7 ), is supported on a flange 133D of the insulating support 131.

La partie de contact 1B, 2B, 7B, 8B de chaque contact métallique d'extrémité 1, 2, 7, 8 présente une inflexion orientée vers l'arrière de la bouche d'entrée femelle. C'est au niveau de l'inflexion que le contact électrique s'établit entre ces contacts métalliques d'extrémité 1, 2, 7, 8 et les contacts métalliques correspondants de la fiche mâle insérée dans la bouche d'entrée femelle de la prise de courants faibles femelle 100.The contact portion 1B, 2B, 7B, 8B of each end metal contact 1, 2, 7, 8 has an inflection oriented rearward of the female inlet mouth. It is at the inflection point that the electrical contact is established between these end metal contacts 1, 2, 7, 8 and the corresponding metal contacts of the plug inserted in the female inlet mouth of the socket. of weak female currents 100.

Comme le montrent les figures 2B, 4, 5, 6 et 7, les parties de contact 1B, 2B, 7B, 8B des contacts métalliques d'extrémité 1, 2, 7, 8 sont plus courtes que les parties de contact 3B, 4B, 5B, 6B des contacts métalliques centraux 3, 4, 5, 6.As shown by Figures 2B , 4, 5, 6 and 7 the contact portions 1B, 2B, 7B, 8B of the end metal contacts 1, 2, 7, 8 are shorter than the contact portions 3B, 4B, 5B, 6B of the central metal contacts 3, 4, 5, 6.

La branche longue 1A, 2A, 7A, 8A des contacts métalliques d'extrémité 1, 2, 7, 8 longs en forme d'épingle à cheveux présente des trajets différents permettant de rattraper le positionnement en quinconce des queues 1', 2', 7', 8' desdits contacts. C'est-à-dire qu'il existe un rattrapage de jeu entre la partie de ces contacts alignés et parallèles et leurs queues positionnées en quinconce.The long limb 1A, 2A, 7A, 8A of the end metal 1, 2, 7, 8 long hairpin-shaped contacts has different paths for catching the staggered positioning of the tails 1 ', 2', 7 ', 8' of said contacts. That is to say, there is a backlash play between the part of these aligned and parallel contacts and their tails positioned staggered.

Ainsi, la forme en épingle à cheveux avec deux branches reliées par une liaison formant charnière confère à ces contacts métalliques d'extrémité 1, 2, 7, 8 une grande élasticité. De ce fait, lorsqu'une fiche mâle du type "RJ 11" ou "RJ 12" à quatre ou six contacts est insérée dans la bouche d'entrée femelle de cette prise de courants faibles destinée à recevoir une fiche mâle du type "RJ 45", ces contacts métalliques d'extrémité 1, 8, qui sont dans les deux cas inopérants, peuvent s'effacer facilement sous le corps isolant de ladite fiche en se déformant élastiquement, par rapprochement mutuel de leurs deux branches.Thus, the hairpin shape with two branches connected by a hinge connection gives these metal end contacts 1, 2, 7, 8 a high elasticity. Therefore, when a plug of the type "RJ 11" or "RJ 12" with four or six contacts is inserted into the female inlet of this weak power outlet intended to receive a plug type "RJ 45 ", these metal end contacts 1, 8, which are in both cases inoperative, can easily fade under the insulating body of said plug by deforming elastically, by mutual approximation of their two branches.

Lorsque la fiche mâle "RJ 11" ou "RJ 12" est retirée de la bouche d'entrée femelle de la prise, la partie de contact 1B, 8B de chaque contact métallique d'extrémité 1, 8 revient élastiquement dans sa position initiale en appui contre le support isolant 131, en se plaçant au même niveau que les parties de contact 3B, 4B, 5B, 6B des contacts métalliques centraux 3, 4, 5, 6 courts ainsi que les parties de contact 2B, 7B des contacts métalliques d'extrémité 2, 7.When the plug "RJ 11" or "RJ 12" is removed from the female inlet mouth of the socket, the contact portion 1B, 8B of each end metal contact 1, 8 resiliently returns to its initial position in bearing against the insulating support 131, by placing itself at the same level as the contact portions 3B, 4B, 5B, 6B of the central metal contacts 3, 4, 5, 6 short as well as the contact portions 2B, 7B of the metal contacts d end 2, 7.

Bien entendu, les contacts métalliques centraux 3, 4, 5, 6 courts présentent également une certaine élasticité pour établir un bon contact avec les contacts métalliques correspondants d'une fiche mâle introduite dans la bouche d'entrée femelle de la prise de courants faibles femelle 100.Of course, the central metal contacts 3, 4, 5, 6 short also have a certain elasticity to establish a good contact with the corresponding metal contacts of a male plug introduced into the female inlet mouth of the socket weak female currents 100.

Comme le montre les figures 4, 5, 6 et 7, le courant matérialisé par une flèche i circule dans un premier sens dans les contacts métalliques courts 4, 5 et dans un sens opposé dans les contacts métalliques longs 7, 8. En fait, le courant circule de l'extrémité libre du contact métallique vers sa queue.As shown by Figures 4, 5, 6 and 7 , the current materialized by an arrow i flows in a first direction in the short metal contacts 4, 5 and in an opposite direction in the long metal contacts 7, 8. In fact, the current flows from the free end of the metal contact to its tail.

Ces sens inversés de circulation du courant dans les contacts métalliques longs et dan les contacts métalliques courts permettent d'améliorer les performances de la prise de courants faibles femelle 100 vis-à-vis des problèmes de diaphonie.These reversed directions of flow of current in the long metal contacts and in the short metal contacts make it possible to improve the performance of the weak female current socket 100 vis-à-vis the problems of crosstalk.

Par ailleurs, comme le montre plus particulièrement la figure 1, la prise de courants faibles femelle 100 du type "prise (jack) modulaire" comprend des moyens de connexion rapide de fils électriques (non représentés) issus du câble d'entrée (non représenté) dans des barrettes de connexion 151, 152, en matière isolante, comprenant des fentes 151A, 152A d'introduction des fils et logeant des contacts métalliques autodénudants 143.Moreover, as shown more particularly by figure 1 , the socket of weak female current 100 of the type "plug (jack) modular" includes means of fast connection of electric wires (not represented) coming from the input cable (not represented) in bars of connection 151, 152, in insulating material, comprising slots 151A, 152A for introducing the wires and housing insulating metal contacts 143.

Les deux barrettes de connexion 151, 152 sont disposées à l'arrière du corps 110 au-dessus de celui-ci.The two connecting bars 151, 152 are disposed at the rear of the body 110 above it.

Les fentes 151A, 152A sont disposées en parallèle selon leur direction longitudinale.Slots 151A, 152A are arranged in parallel along their longitudinal direction.

Les moyens de connexion des fils électriques issus du câble d'entrée de raccordement au réseau comprennent, pour chaque barrette de connexion 151 152, un couvercle pivotant 160, en matière isolante, apte à recouvrir chaque barrette de connexion 151, 152 et à pousser les fils logés dans lesdites fentes 151A, 152A d'introduction pour les engager à force dans les contacts métalliques autodénudants 143.The connection means of the electrical wires coming from the network connection input cable comprise, for each connection strip 151 152, a pivoting cover 160, made of insulating material, capable of covering each connection strip 151, 152 and pushing the wires housed in said slots 151A, 152A introduction to force them into the insulation displacement metal contacts 143.

Lesdites fentes 151A, 152A permettent de maintenir en position les fils électriques avant qu'ils ne soient engagés à force dans les contacts métalliques autodénudants sous l'action du couvercle pivotant 160 rabattu sur la barrette de connexion correspondante.Said slots 151A, 152A make it possible to hold the electrical wires in position before they are force-fitted into the insulation displacement metal contacts under the action of the pivoting cover 160 folded down on the corresponding connection strip.

Les barrettes de connexion 151, 152 sont séparées par une voie centrale 156 d'entrée du câble électrique d'entrée dont sont issus les fils à connecter.The connection strips 151, 152 are separated by a central input path 156 of the electrical input cable from which the son to be connected.

Les deux axes de pivotement 155 des couvercles pivotants 160 associés sont situés de part et d'autre de la voie centrale 156 sur un côté longitudinal de la prise de courants faibles femelle 100.The two pivot axes 155 of the associated pivoting lids 160 are located on either side of the central lane 156 on a longitudinal side of the female weak current socket 100.

Selon le mode de réalisation représenté sur la figure 1, les barrettes de connexion 151, 152 font partie d'une pièce unique 150, appelée "bornier", réalisée par moulage d'une matière plastique, et la voie centrale 156 comporte un fond en forme de berceau d'accueil du câble d'entrée et faisant le lien entre les deux barrettes de connexion 151, 152.According to the embodiment shown on the figure 1 , the connecting strips 151, 152 are part of a single piece 150, called a "terminal block", made by molding a plastic material, and the central channel 156 has a cradle-shaped bottom of the cable input and making the connection between the two connection bars 151, 152.

Le bornier 150 comporte, sur sa face inférieure, aux quatre coins, des plots verticaux 153 destinés à s'insérer dans des ouvertures 114 correspondantes prévues sur la face arrière du corps 110. Les plots verticaux 153 servent, d'une part, au centrage du bornier 150 sur la face arrière du corps 110, et, d'autre part, à la solidarisation dudit bornier 150 au corps 110 par soudage par ultrason.The terminal block 150 has on its underside, at the four corners, vertical studs 153 intended to be inserted into corresponding openings 114 provided on the rear face of the body 110. The vertical studs 153 serve, on the one hand, to centering of the terminal block 150 on the rear face of the body 110, and, secondly, the securing of said terminal block 150 to the body 110 by ultrasonic welding.

L'axe de pivotement 155 de chaque couvercle pivotant 160 est solidaire de la barrette de connexion 151, 152 associée et vient de formation par moulage avec ladite barrette de connexion.The pivot axis 155 of each pivoting cover 160 is integral with the connecting bar 151, 152 associated and comes from forming by molding with said connecting strip.

Chaque couvercle pivotant 160 est une pièce en matière isolante, par exemple en matière plastique, réalisée par moulage, et comporte à une extrémité un clip 161 pour son montage par encliquetage sur l'axe de pivotement 155.Each pivoting lid 160 is a piece of insulating material, for example made of plastics material, produced by molding, and comprises at one end a clip 161 for its snap-fitting assembly on the pivot axis 155.

A l'opposé du clip 161, chaque couvercle pivotant 160 comporte une dent d'encliquetage 162 pour son verrouillage en position abaissée sur la barrette de connexion 151, 152 associée.Opposite the clip 161, each pivoting cover 160 has a ratchet tooth 162 for locking it in a lowered position on the connecting bar 151, 152 associated.

A cet effet, chaque barrette de connexion 151, 152 comporte, à l'opposé de l'axe de pivotement 155, une dent d'encliquetage 154 pour l'accrochage de la dent d'encliquetage 162 correspondante du couvercle pivotant 160 associé.For this purpose, each connection strip 151, 152 comprises, opposite the pivot axis 155, a ratchet tooth 154 for hooking the corresponding ratchet tooth 162 of the associated pivot cover 160.

Cette dent d'encliquetage 154 vient de formation avec la barrette de connexion 151, 152This ratchet tooth 154 is formed by the connection bar 151, 152

Chaque couvercle pivotant 160 porte, sur sa face intérieure tournée vers la barrette de connexion 151, 152 associée, des cloisons verticales 163 agencées de manière que, lorsque le couvercle pivotant est abaissé par pivotement vers la barrette correspondante, ces cloisons verticales 163 s'enfoncent dans les fentes 151A, 152A pour pousser les fils prépositionnés dans lesdites fentes d'introduction de la barrette de connexion 151, 152 vers les contacts métalliques autodénudants 143.Each pivoting cover 160 carries, on its inner side turned towards the connecting bar 151, 152 associated, vertical partitions 163 arranged so that, when the pivoting lid is lowered by pivoting towards the corresponding bar, these vertical partitions 163 sink in the slots 151A, 152A for pushing the prepositioned wires in said insertion slots of the connecting bar 151, 152 towards the insulation displacement metal contacts 143.

Lors de l'engagement à force de chaque fil électrique dans chaque contact métallique autodénudant, les lames coupantes des contacts métalliques autodénudants découpent transversalement la gaine isolante du fil électrique pour établir un contact électrique entre l'âme conductrice du fil et le contact métallique lui-même.During the forced engagement of each electrical wire in each insulation displacement metal contact, the cutting blades of the insulation displacement metal contacts transversely cut the insulating sheath of the electrical wire to establish an electrical contact between the conductive core of the wire and the metal contact itself. even.

Le montage à pivotement du couvercle pivotant 160 permet d'engager, l'un après l'autre, les fils dans les contacts métalliques autodénudants sans nécessiter une force de pression élevée.The pivotal mounting of the pivoting cover 160 makes it possible to engage, one after another, the wires in the metal insulation displacement contacts without requiring a high pressure force.

Selon le mode de réalisation représenté, la prise de courants faibles femelle 100 comporte un serre-câble 170 qui est une pièce en matière métallique, en forme de U ou de cavalier, montée sur les côtés latéraux du corps 110 au moyen d'une coopération de crans 171 prévus sur le serre-câble 170 avec une succession de crans 116 prévus sur le corps 110. Un tel montage permet au serre-câble de s'adapter à différents diamètres de câble.According to the embodiment shown, the female low current plug 100 comprises a cable clamp 170 which is a piece of metal material, U-shaped or jumper mounted on the lateral sides of the body 110 by means of a cooperation notches 171 provided on the cable clamp 170 with a succession of notches 116 provided on the body 110. Such an assembly allows the cable clamp to adapt to different cable diameters.

En outre, il est prévu sur le bornier 150 un positionneur 157 en matière plastique, rabattable en direction des fentes 151A, 152A permettant de maintenir le câble avant sa connexion dans les fentes du bornier.In addition, there is provided on the terminal block 150 a plastic positioner 157, foldable towards the slots 151A, 152A for holding the cable before its connection in the slots of the terminal block.

Le serre-câble, réalisé en matière métallique, sert à créer, autour du câble d'entrée, une cage métallique de blindage et à maintenir le câble d'entrée afin d'éviter, lors des manipulations de la prise de courant, tout effort sur les connexions électriques établies entre lesdits fils et les contacts métalliques autodénudants.The cable clamp, made of metallic material, is used to create a metal shielding cage around the input cable and to hold the input cable in order to avoid, when handling the socket, any effort on the electrical connections established between said wires and the metal insulation displacement contacts.

En outre, la prise de courants faibles femelle 100 comporte un écran 120 réalisé en matière métallique et qui sert à faire le lien entre le blindage du câble d'entrée et le blindage du câble de sortie.In addition, the female low current plug 100 comprises a screen 120 made of metallic material and which serves to link the shielding of the input cable and the shielding of the output cable.

Bien entendu cet écran n'est utile que dans le cas d'utilisation de câbles blindés du type FTP ou STP.Of course this screen is only useful in the case of using shielded cables of FTP or STP type.

A cet effet, l'écran 120 comporte une partie avant en forme de cavalier avec deux pattes verticales parallèles introduites dans des ouvertures du corps 110 de la prise de courants faibles femelle 100.For this purpose, the screen 120 comprises a horseshoe-shaped front portion with two parallel vertical tabs introduced into openings of the body 110 of the female weak current receptacle 100.

Ces ouvertures débouchent dans la bouche d'entrée femelle de façon que les flancs métalliques de la fiche mâle du câble de sortie, introduite dans ladite bouche d'entrée femelle, entrent en contact avec lesdites pattes de l'écran 120.These openings open into the female inlet mouth so that the metal flanks of the plug of the output cable, introduced into said female inlet mouth, come into contact with said tabs of the screen 120.

En outre, l'écran 120 comporte, en partie arrière, des flancs parallèles aptes à être rabattus dans le berceau 156 prévu entre les deux barrettes de connexion 151, 152.In addition, the screen 120 comprises, in the rear part, parallel flanks adapted to be folded into the cradle 156 provided between the two connection bars 151, 152.

Par ailleurs, l'écran 120 est relié au blindage du câble d'entrée par l'intermédiaire de pattes qui réalisent le contact électrique avec le drain du blindage.Furthermore, the screen 120 is connected to the shielding of the input cable via tabs which make electrical contact with the drain of the shield.

Enfin, le corps 110 de la prise de courants faibles femelle 100 comporte, sur ses deux faces externes latérales longitudinales, des dents 115 pour le montage d'un capot enjoliveur non représenté.Finally, the body 110 of the small female current tap 100 comprises, on its two longitudinal lateral outer faces, teeth 115 for mounting a not shown hub cap.

La présente invention n'est nullement limitée au mode de réalisation décrit et représenté, mais l'homme du métier saura y apporter toute variante conforme aux revendications.The present invention is not limited to the embodiment described and shown, but the skilled person will be able to make any variant according to the claims.

Claims (12)

  1. A low-current female socket (100) of the 'modular jack' type comprising an insulative material body (110) comprising a female entry mouth adapted to receive a male plug and a series of eight aligned metal contacts (1, 2, 3, 4, 5, 6, 7, 8), each metal contact extending from a tail freely at the side of said female entry mouth and having a contact part (1B, 2B, 3B, 4B, 5B, 6B, 7B, 8B) adapted to make electrical contact with a metal contact of the male plug, characterised in that the four central metal contacts (3, 5, 6) of said series, forming two pairs of contacts respectively connected to two pairs of electrical wires, are short contacts that follow a one-way path from their tail, and said contact parts (3B, 4B, 5B, 6B) thereof are parallel to each other and oriented generally toward the front of said female entry mouth, and that the two end metal contacts (1, 8) disposed at the two ends of said series are long contacts that follow a path in two opposite directions and whose contact parts (1B, 8B) are oriented generally toward the rear of said female entry mouth.
  2. A current socket according to claim 1 characterised in that said two pairs of end metal contacts (1, 2, 7, 8) that are each connected to a pair of electrical wires are pairs of long contacts that follow a path in two opposite directions and whose contact paths (1B, 2B, 7B, 8B) are parallel to each other and oriented generally toward the rear of said female entry mouth.
  3. A current socket according to one of claims 1 and 2 characterised in that each contact part (1B, 2B, 7B, 8B) of each long contact of said series has an end (1D, 2D, 7D, 8D) free of any mechanical engagement with an insulative support (131).
  4. A current socket according to one of claims 1 to 3 characterised in that each end metal contact (1, 2, 7, 8) is in the general shape of a hairpin with two branches of different lengths (1A, 1B, 2A, 2B, 7A, 7B, 8A, 8B) that are connected together by a connection forming a hinge (1C, 2C, 7C, 8C), the short branch (1B, 2B, 7B, 8B) that is oriented toward the rear of said female entry mouth constituting said contact part (1B, 2B, 7B, 8B) and the long branch (1A, 2A, 7A, 8A) being situated to the rear with respect to said short branch (1B, 2B, 4B, 8B).
  5. A current socket according to one of claims 1 to 4 characterised in that said contact part (1B, 2B, 7B, 8B) of each end metal contact (1, 2, 7, 8) has a bend oriented toward the rear of said female entry mouth.
  6. A current socket according to one of claims 1 to 5 characterised in that said contact parts (3B, 4B, 5B, 6B) of said central metal contacts (3, 4, 5, 6) comprise at their end a beak (3C, 4C, 5C, 6C) bearing against an insulative support (131).
  7. A current socket according to one of claims 1 to 6 characterised in that said contact parts (3B, 4B, 5B, 6B) of said central metal contacts (3, 4, 5, 6) are of a generally crenellated form.
  8. A current socket according to one of claims 1 to 7 characterised in that said contact part (1B, 2B, 7B, 8B) of each end metal contact (1, 2, 7, 8) is shorter than said contact part (3B, 4B, 5B, 6B) of each central metal contact (3, 4, 5, 6).
  9. A current socket according to one of claims 1 to 8 characterised in that said contact parts (3B, 4B, 5B, 6B) of said central metal contacts (3, 4, 5, 6) are of the same length and said contact parts (1B, 2B, 7B, 8B) of said end metal contacts (1, 2, 7, 8) are of the same length.
  10. A current socket according to one of claims 1 to 9 characterised in that said metal contacts (1, 2, 3, 4, 5, 6, 7, 8) are attached to an insulative plate (135), said tails (1', 2', 3', 4', 5', 6', 7', 8') of said metal contacts (1, 2, 3, 4, 5, 6, 7, 8) emerging from said insulative plate (135) toward the rear of said body (110) and being pinhead-shaped to be force-fitted into orifices (142) in a printed circuit support plate (140).
  11. A current socket according to claim 10 characterised in that said tails (1', 2', 3',4',5',6', 7', 8') of said metal contacts (1, 2, 3, 4, 5, 6, 7, 8) are arranged in a quincunx on the insulative plate (135) and that each central metal contact (3, 4, 5, 6) comprises a part (3A, 4A, 5A, 6A) for taking up play between its tail (3', 4', 5', 6') and its contact part (3B, 4B, 5B, 6B).
  12. A current socket according to one of claims 1 to 11 characterised in that it comprises an insulative support (131) provided with eight slots receiving said metal contacts (1, 2, 3, 4, 5, 6), said insulating support (131) being received in an opening (111) disposed at the rear of said body (110).
EP02291603A 2001-06-28 2002-06-27 Low voltage modular jack Expired - Lifetime EP1271713B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0108548A FR2826788B1 (en) 2001-06-28 2001-06-28 LOW CURRENT TYPE "MODULAR JACK" TYPE
FR0108548 2001-06-28

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EP1271713A1 EP1271713A1 (en) 2003-01-02
EP1271713B1 true EP1271713B1 (en) 2009-10-28

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US (1) US6729914B2 (en)
EP (1) EP1271713B1 (en)
DE (1) DE60234146D1 (en)
DK (1) DK1271713T3 (en)
FR (1) FR2826788B1 (en)

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Also Published As

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DE60234146D1 (en) 2009-12-10
US6729914B2 (en) 2004-05-04
US20030003810A1 (en) 2003-01-02
FR2826788B1 (en) 2003-09-26
EP1271713A1 (en) 2003-01-02
FR2826788A1 (en) 2003-01-03
DK1271713T3 (en) 2010-03-15

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