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
  • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
  • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
  • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
  • H01R4/242—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members being plates having a single slot
  • H01R4/2425—Flat plates, e.g. multi-layered flat plates
  • H01R4/2429—Flat plates, e.g. multi-layered flat plates mounted in an insulating base
  • H01R4/2433—Flat plates, e.g. multi-layered flat plates mounted in an insulating base one part of the base being movable to push the cable into the slot
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
  • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
  • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
  • H01R13/6581—Shield structure
  • H01R13/6585—Shielding material individually surrounding or interposed between mutually spaced contacts
  • H01R13/6589—Shielding material individually surrounding or interposed between mutually spaced contacts with wires separated by conductive housing parts

Definitions

• the present invention relates to a weak socket intended for use in data processing or in telephony.
• Such sockets for example of the RJ45 type, generally comprise a socket base provided with a plug-in housing in which there are several contact pins, usually eight. It is therefore possible, using a plug, to connect to these contact pins.
• the plug-in housing is of course located on the front of the socket.
• a connection cable generally connects to insulation displacement contacts which are of course oriented perpendicular to the conductive wires to be cut.
• these devices for the connection of the conductor wires of the connection cable, there are devices for storing, organizing and fixing these wires on the insulation-displacement contacts of the socket base.
• these devices are in the form of a cap which can be attached to the socket base.
• a typical example of an organizing cap is in the form of a comb through which the conducting wires of the connection cable are passed.
• the comb consists of an alignment of wire passage channels arranged one next to the other. Consequently, it is relatively difficult and laborious to thread the threads into their respective grommet channel, since it is practically compulsory to thread all of the threads in the same operation.
• the conducting wires must therefore be placed next to each other in an aligned manner in a very precise order distinguished by different colors of wires.
• the organizing cap is attached laterally to the insulation displacement contacts of the socket base by exerting a pressure force on the cap so as to engage the wires in the respective insulation displacement contacts.
• the organizer cap has reached its maximum insertion position, it is ensured that the sheaths of the conductive wires are all incised to the core of the son by the insulation displacement contacts. Simultaneous wiring of the conducting wires is thus carried out.
• the socket base has two rows of four insulation displacement contacts that point upward when the socket is positioned as it should be installed in a wall.
• the two rows of contacts are offset vertically and horizontally, one with respect to the other, so that they are arranged in steps.
• the cap also defines two rows of guide holes for the eight wires of the cable to be connected.
• the two rows of four holes open offset so that the wires can be inserted into the insulation-displacement contacts of the socket base.
• the cap is attached laterally to the base, that is to say perpendicular to the direction of insertion of the socket. It follows therefore the aforementioned problem of tearing linked to a traction on the wire since the wires extend in a substantially straight line in the socket.
• the object of the present invention is to remedy the aforementioned drawbacks of the prior art by defining a weak current socket with an organizing cap for which the fitting of the various conducting wires is simpler and the connection which the organizing cap makes is more solid. in that a traction exerted on the cable does not affect the level of the cores of the wires engaged in the insulation displacement contacts.
• the present invention provides a weak socket comprising: a socket base provided with contact pins on which a plug can be connected by bringing it in a given direction of insertion, and an organizable cap that can be attached to the socket base, said cap, when fixed on the base, making electrical contact between the conductive wires of a connection cable and the contact pins of the base, the cap comprising wire guides allowing repetitive spatial positioning separate wires to put them in electrical connection with the contact pins when fixing the cap on the base, characterized in that the cap can be attached from the rear to the socket base in said direction of insertion.
• the cable is brought to the base of taken in the same direction as the insulation displacement contacts, which involves bending or changing the direction of the wires in the organizer cap to bring them perpendicular to the insulation displacement contacts
• each wire guide is provided for guiding a pair of wires, said guides being arranged in a geometric polygonal configuration.
• said pair of wire guides are four in number for a conventional cable comprising four pairs of wires, and are arranged in a rectangular configuration.
• each guide of pair of wires comprises a guide conduit common to the pair of wires and two blocking channels for the respective wires of the pair.
• the common guide conduits may extend substantially in said insertion direction and the blocking channels may extend substantially perpendicular to said insertion direction.
• the common guide duct and the two blocking channels form an angle so as to form an edge on which the respective wire forms a fold of blocking.
• the conductive wires can first be pulled all the way through the common guide conduit and then folded down in their respective blocking channels which forms the blocking fold at the location of the edge which forms the transition between the common guide duct and the respective blocking channel.
• This blocking fold ensures on the one hand that the wires are pulled all the way through the organizing cap so that the shielding of the connection cable or of the pairs of individual wires extends as close as possible to the organizing cap, and on the other hand, the final immobilization of the conductive wires in the organizer cap.
• the locking ply therefore performs a dual function.
• connection cable since the electrical contact with the insulation displacement contacts is made at the level of the section of the wires engaged in the blocking channels, traction on the connection cable no longer affects the insulation displacement contacts but at the level of the fold. blocking device which forms a stop for the folded wire.
• the bending of wires before connection also makes it possible to be able to bring the cap back to the base from the rear and not laterally, which is easier.
• the blocking channels are provided with retention means such as lugs to keep the wires blocked in their respective channel.
• retention means such as lugs to keep the wires blocked in their respective channel.
• the edge on which the blocking fold is formed allows a blocking of the wires, but the retention means, for example in the form of a lug, ensure the final immobilization of the conducting wires in the channels, so that a traction exerted on the cable cannot cause the conductive wires to be disengaged from their respective channels.
• the common guide conduits are open laterally to allow a lateral introduction of the pairs of wires. Consequently, it is no longer necessary to thread the pairs of wires into the respective pair guides, but simply to engage them laterally, which greatly facilitates the introduction of the pairs into the guides.
• the pair of son guides are in the form of a notch formed in the organizing cap which opens at its lower end in the two respective locking channels. The operator responsible for the wiring then only needs to organize the four pairs of wires in space in four diverging directions ec to bring the end of the cable thus arranged on the organizing cap and then to fold the four pairs of wires one by one in the guides open laterally. Then, the operator only has to fold back the conducting wires by pulling them into the respective blocking channels. The last operation consists simply in attaching the organizing cap to the rear of the socket base and pushing it in until the wires are engaged in the insulation displacement contacts.
• the wire guides are electronically isolated from each other by a cross-shaped screen device which extends beyond the electrical contact of the wires with the socket base.
• This characteristic is particularly advantageous with the use of connection cables in which each pair of wires is shielded by a metal screen.
• the electromagnetic screens separating the different guides allow perfect insulation guide to guide by extending the insulation produced by the pair screens.
• This operation is particularly simple with the organizer cap according to the invention because it is possible to strongly pull the wires through the common guide duct and then fold them over the edges in their respective blocking channels.
• the base is provided with insulation displacement contacts electrically connected to the contact pins, each blocking channel is formed with a through housing allowing the insertion of the insulation displacement contacts transversely to the wires blocked in their respective channel.
• the fact that the electrical contact is made at the wire sections located in the blocking channels ensures a certain independence with respect to the connection cable, in the sense that traction on the cable is exerted only at the level of the locking fold and not at the insulation displacement contacts.
• the cap is provided with a drain wire guide allowing the drain wire to be grounded when the cap is attached to the base.
• the drain wire guide allows, in the same operation for fixing the cap on the base, to bring the drain wire into contact with a metallic or metallized part forming a mass.
• FIG. 1 is an exploded perspective representation of a weak current socket according to an embodiment of the present invention
• FIG. 2 is a view of the weak current socket from FIG. 1 to assembled state
• FIG. 3 is an exploded representation in cross section of the weak socket in the figures
• - Figure 4 is a cross-sectional view of the socket of Figure 3 in the assembled state
• Figure 5 is an exploded view in cross section of a low current socket according to another embodiment
• - Figure 6 is a cross-sectional view of the low power outlet of Figure 5 of the assembled state
• Figure 7 is a top view of the low power outlet of Figures 5 and 6.
• the weak socket essentially comprises two component parts, namely a socket base 2 and a rear organizer cap 1.
• the two parts 1 and 2 can be made of a molded plastic material.
• the front face of the base 2 is facing downwards and includes a plug-in housing in which are arranged contact pins 25, like those of Figures 5 and 6 on which one can connect a plug in a given insertion direction.
• a plug-in housing in which are arranged contact pins 25, like those of Figures 5 and 6 on which one can connect a plug in a given insertion direction.
• Each contact pin 25 is electrically connected to a respective insulation displacement contact 21 as can be seen in Figures 3 and 4.
• the insulation displacement contacts 21 are accessible from the rear side of the base 2 when the rear cap 1 is removed and extend in the direction of insertion.
• the rear face of the base 2 is oriented upwards.
• An object of the rear organizer cap 1 is to engage individual conducting wires of a connection cable 3 in the respective insulation displacement contacts 21 of the socket base 2.
• the base socket 2 is provided with a screen element 24 in the form of a cross which divides the socket base 2 into four compartments which are perfectly electromagnetically isolated from each other.
• the screen 24 can be made of a metal such as Zamac.
• Each compartment delimited by the screen 24 contains two insulation displacement contacts 21.
• it has been chosen to describe an eight-pin socket base, thus comprising eight insulation displacement contacts 21, but it is also possible to provide sockets for low current with more or less than eight contact pins.
• the number of self-stripping contact pins should not be considered as limiting the invention.
• the socket base 2 which has just been described is common to the two embodiments shown in the figures with the exception of the screen 24.
• the organizer cap 1 can be attached from the rear to the socket base 2, for example by snap-fastening.
• the screen 24 is provided with snap-on lugs 240 which make it possible to definitively fix the rear cap 1 on the socket base 2.
• a retaining ring 25 can be provided which snaps onto the screen 24 by pressing on the cap 1.
• the rear organizer cap 1 has a cross section somewhat smaller than that of the socket base 2 so that the cap can be inserted inside the base 2.
• the organizer cap 1 is formed with a central insertion passage 16 allowing the passage of the upper cross-shaped part of the screen 24.
• the snap lugs 240 of the screen 24 bear on the upper face 10 of the cap 1 at the ends of the cross-shaped passage 16. A final fixing is thus obtained.
• the organizer cap 1 is provided with four guides of pairs of wires 11 arranged relative to each other so as to form a rectangle.
• each guide 11 corresponds to a compartment of the base 2 delimited by the screen 24.
• each pair of wire guides 11 has an elongated section allowing the insertion of a pair of wires arranged side by side. side.
• the visible parts of the guides 11 from the face 10 of the cap 1 constitute a common guide conduit 11 allowing the passage of a pair of wires 31, 32.
• the common guide conduit 11 passes through the cap 1 right through starting from the surface 10. It is therefore possible to pass the pairs of wires 31, 32 separately through the cap 1 by engaging them respectively in their respective guide duct 11.
• each pair of wires 31, 32 is individually insulated by a screen 33, it is possible to pull the wires on the other side of the cap 1 so as to penetrate at least partially the shielding screen 33 of the individual pairs inside the common guide conduits 11. Since the socket base 2 is provided with an insulating screen 24, there is no insulation discontinuity between the cable 3 and the socket according to the invention. As is clearly visible in FIG. 4, the shielding screen 30 of the cable 3 is pulled up to contact with the upper part of the screen 24 while the pair shielding screens 33 penetrate into the guide conduits. 11. It is then possible to fold the conductive wires individually so as to engage them individually in blocking channels 12 which extend substantially perpendicularly to the guide conduits 11 and which are open along their length behind the cap, as can be seen in Figure 1.
• each guide duct 11 therefore opens laterally on two locking channels 12.
• four locking channels 12 open laterally on either side of the cap 1.
• the cap 1 forms at the entrance to the blocking channels 12 a projecting edge 13. Consequently, when the operator folds back the sons individual in the blocking channels 12, these will be forced to form a blocking fold at the edge 13.
• This blocking fold on the conductive wires has several advantages. Indeed, first of all this fold makes it possible to definitively fix the position of the cable 3 relative to the cap 1. In addition, this blocking fold makes it possible to bring the wires perpendicular to the insulation displacement contacts 21.
• this fold of blocking allows the part of the wire engaged in the channels 12 to be left substantially unstressed during a pulling on the cable 3.
• the wires are locked inside, which definitively and unchangingly fixes the position of the cable 3 relative to the cap 1 even before it is fixed to the base 2.
• retention means for example in the form of retention lugs 120 which define a passage section slightly smaller than the section of the conductive wires. so that once forcibly engaged inside the blocking channels 12 the conductive wires can no longer be released. It is thus definitively ensured that the blocking fold formed on the edge 13 is fixed in position.
• through-insertion housings 14 which are arranged corresponding to the geometry of the insulation displacement contacts 21 .
• FIG. 7 there is shown a low power outlet according to a second embodiment of the invention.
• the variant incorporated in this second embodiment resides in the design of the organizer cap 1 while the base 2 is perfectly identical except that it does not have an insulating screen 24 compartmentalizing the base 2 into four electromagnetically isolated spaces .
• the peculiarity incorporated by the organizer cap 1 of FIG. 7 resides in the fact that the common guide conduits 11 are open laterally so that it is possible to engage the pairs of wires laterally in the conduits 11. While it is necessary to introduce the wires laterally inside the conduits 11 from the face 10 of the cap 1, with the cap 1 of FIG. 7, they can be engaged more simply by lateral introduction.
• this type of cap 1 is provided with a drain wire guide 15 allowing the drain wire to be grounded when the cap 1 is fixed on the base 2. Thanks to the organizer cap 1 according to the invention, it is possible to divide the cable 3 by pair and then to carry out the positions of the pairs of wires one after the other, so that the wiring operation is much simpler . It should also be noted that the fitting of the cap on the base is carried out from the rear, which implies a bending of blocking of the tensile-resistant wires. In addition, the screen 24 makes it possible to isolate the pairs of wires beyond the insulation displacement contacts, which ensures a shielding continuity between pairs even in the event of the screen sheath of the pairs disappearing at the level of the conduit.

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• Details Of Connecting Devices For Male And Female Coupling (AREA)
• Multi-Conductor Connections (AREA)

Applications Claiming Priority (3)

Publications (2)

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ID=9511327

Family Applications (1)

Country Status (9)

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• 1997
  • 1997-09-22 FR FR9711763A patent/FR2768862B1/fr not_active Expired - Fee Related
• 1998
  • 1998-09-18 US US09/508,962 patent/US6267617B1/en not_active Expired - Fee Related
  • 1998-09-18 DE DE69805823T patent/DE69805823T2/de not_active Expired - Fee Related
  • 1998-09-18 BR BR9812496-0A patent/BR9812496A/pt not_active IP Right Cessation
  • 1998-09-18 EP EP98944021A patent/EP1018191B1/de not_active Expired - Lifetime
  • 1998-09-18 WO PCT/FR1998/002004 patent/WO1999016153A1/fr active IP Right Grant
  • 1998-09-18 AU AU91704/98A patent/AU9170498A/en not_active Abandoned
  • 1998-09-18 ES ES98944021T patent/ES2178255T3/es not_active Expired - Lifetime
  • 1998-09-18 DK DK98944021T patent/DK1018191T3/da active

Non-Patent Citations (1)

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