EP2313948A1 - Einlage und verfahren zum zusammenbau einer solchen einlage - Google Patents

Einlage und verfahren zum zusammenbau einer solchen einlage

Info

Publication number
EP2313948A1
EP2313948A1 EP09740401A EP09740401A EP2313948A1 EP 2313948 A1 EP2313948 A1 EP 2313948A1 EP 09740401 A EP09740401 A EP 09740401A EP 09740401 A EP09740401 A EP 09740401A EP 2313948 A1 EP2313948 A1 EP 2313948A1
Authority
EP
European Patent Office
Prior art keywords
contacts
zones
central
armature
central armature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09740401A
Other languages
English (en)
French (fr)
Other versions
EP2313948B1 (de
Inventor
Jean-Marc Jaouen
Didier Revol
Vincent Laroche
Nathalie Foratier
Jean-Pierre Cousy
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 SNC
Legrand France SA
Original Assignee
Legrand SNC
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 SNC, Legrand France SA filed Critical Legrand SNC
Publication of EP2313948A1 publication Critical patent/EP2313948A1/de
Application granted granted Critical
Publication of EP2313948B1 publication Critical patent/EP2313948B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01R13/6464—Means for preventing cross-talk by adding capacitive elements
    • 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
    • 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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/6608—Structural association with built-in electrical component with built-in single component
    • H01R13/6625—Structural association with built-in electrical component with built-in single component with capacitive component
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/43—Electric condenser making

Definitions

  • the present invention relates to an insert and a method of assembling such an insert. It applies, in particular, inserts for the connection of electronic or computer systems, including inserts type RJ45 (acronym for Registered Jack).
  • a plug, or "plug” is intended to ensure, by insertion into an insert, or plug, the electrical connection between electrical lines present on the one hand in the plug and on the other hand, in the insert.
  • the plates of the plug bear respectively on corresponding contacts, or homologues, of the insert.
  • electromagnetic induction effects induce crosstalk, that is to say a disturbance of the signals conveyed on a line by the signals carried on the neighboring lines. .
  • twisted pairs are used in cables for data transmission in telephone and computer networks.
  • NEXT acronym for Near End CrossTalk
  • an RJ45 connector is a physical interface often used to terminate twisted pair cables. It has eight pins of electrical connections.
  • ISO IEC 11801 (amendment 1 and amendment 2, in progress) defines the performance of a transmission channel.
  • US 5,547,405 discloses means for reducing crosstalk on the insert side.
  • this document provides a lateral extension (114) starting from the first contact (B), passing in front of the second (A) to extend in front of the third (C).
  • a lateral extension (124) starts from the fourth contact (D), passes in front of the third (C) to extend in front of the second (B) to form a compensation capacitor.
  • this document provides four compensation capacitors (16A, 16B, 16C and 16D) formed in the same manner by lateral extensions 3 and 6. on both sides of the third and sixth contacts.
  • the second preferred embodiment comprises two half-inserts (120a and 120b) separated by an air layer (142) which surround the even conductors, on the one hand (120a). ) and odd, on the other hand (120b).
  • capacitors are formed between three conductors (T2, T3, T4 and R1, R3, R2, respectively), thanks to local deformations of the conductors, called "protrusions".
  • the central conductor (respectively T3 and R3) has, as illustrated in FIG. 17, two lateral extensions which respectively face lateral extensions of the other conductors.
  • the third embodiment of this document aims, in this respect, to reduce the inductive effects.
  • the present invention aims to remedy these disadvantages.
  • an insert comprising at least three contacts having substantially linear portions, which further comprises at least a three-pole capacitance between three of said contacts, one of the contacts of each three-pole capacitor being connected to a central armature, a first dimension of the central armature, in the direction perpendicular to said substantially linear portions being greater than a second dimension, in a direction parallel to said substantially linear portions, said second dimension defining the widths of the zones of said central armature, the average width of said central armature, between the zones where said central armature is opposite other armatures, called "lateral", connected to the other contacts of said three-pole capacitor, being greater than one third of the average width of said central armature in said zones.
  • the inductance created by the connections with the zones of superposition of the capacitor plates is reduced or even eliminated.
  • such a three-pole capacitance is characterized by the virtually total absence of an inductive effect between the two lateral frames lying opposite the single central armature.
  • the average width of said central armature, between the zones where it is opposite lateral armatures is greater than one third of the distance between the lateral armatures.
  • the minimum width of said central armature, between the zones where said central armature faces the lateral armatures, is greater than one-third of the average width of said central armature in said zones.
  • the minimum width of said central armature, between the zones where it is opposite lateral armatures, is greater than one third of the distance between the lateral armatures.
  • the average width of said central armature, between the zones where said central armature faces the lateral armatures, is greater than half the average width of said central armature in said areas.
  • the average width of the central armature, between the zones where it is opposite the lateral armatures is greater than two-thirds of the average width of said armature in said zones.
  • the average width of the central armature, between the zones where it is opposite lateral armatures is equal to the average width of said armature in said zones.
  • the average width of said central armature, between the zones where it is opposite the lateral armatures, is greater than half the distance between the lateral armatures.
  • the average width of said central armature, between the areas where it is next to the side frames is greater than two thirds of the distance between the side frames.
  • the average width of said central armature, between the zones where it is opposite the lateral armatures, is greater than or equal to the distance between the lateral armatures.
  • the minimum width of said central armature, between the zones where said central armature faces the lateral armatures, is greater than half the average width of said central armature in said areas.
  • the minimum width of the central armature, between the zones where it is opposite the lateral armatures, is greater than two-thirds of the average width of said armature in said zones.
  • the minimum width of the central armature, between the zones where it is opposite the lateral armatures, is equal to the average width of said armature in said zones.
  • the minimum width of said central armature, between the zones where it is opposite the lateral armatures, is greater than half the distance between the lateral armatures.
  • the average width of said central armature, between the zones where it is opposite the lateral armatures, is greater than two-thirds of the distance between the lateral armatures.
  • the average width of said central armature, between the zones where it is opposite lateral armatures, is greater than or equal to the distance between the lateral armatures.
  • the central armature is solid.
  • the insert object of the present invention comprises at least five consecutive contacts and at least one three-pole capacitance between the first, third and fifth contacts.
  • the insert object of the present invention comprises eight consecutive contacts and at least one three-pole capacitance between the fourth, sixth and eighth contacts.
  • the insert which is the subject of the present invention, as briefly described above, comprises means for separating the contacts into two groups of contacts spaced apart from one another, one of the groups comprising the even contacts and the other involving odd contacts.
  • At least one three-pole capacitance comprises a dielectric film interposed between frames.
  • the present invention is directed to a method of assembling an insert which comprises a step of assembling at least three contacts having substantially linear portions, which furthermore comprises a step of producing from less a three-pole capacitance between three of said contacts, one of the contacts of each three-pole capacitor being connected to a central armature, a first dimension of the central armature, in the direction perpendicular to said substantially linear portions being greater than a second dimension, in a direction parallel to those parts substantially linear, said second dimension defining the widths of the zones of said central armature, the average width of said central armature, between the zones where said central armature is opposite other armatures, called "lateral", connected to the other contacts said three-pole capacitance being greater than one third of the average width of said central armature in said zones.
  • FIG. 1 represents a theoretical diagram of crosstalk compensation for an insert according to the RJ45 standard
  • FIG. 2 represents, schematically, the positioning of the contacts of a particular embodiment of the insert which is the subject of the present invention
  • FIGS. 3A to 3E show, for a first half-insert of the insert illustrated in FIG. 2, two perspective views, a side view and two sectional views,
  • FIGS. 4A to 4E show, for a second half-insert of the insert illustrated in FIG. 2, two perspective views, a side view and two sectional views,
  • FIG. 5 represents an equivalent electrical diagram of the insert illustrated in FIGS. 2 to 4 with three-pole capacitors
  • FIG. 6 represents, in the form of a logic diagram, the steps implemented in a particular embodiment of the assembly method of an insert which is the subject of the present invention
  • FIGS. 7A to 7H show the shapes of the longitudinal extensions of the contacts of the insert illustrated in FIGS. 1 to 5
  • FIG. 8 shows contacts provided with lateral extension of the invention described in document US Pat. No. 5,547,405,
  • FIG. 9 represents, schematically, the equivalent electrical diagram of the insert described in document US Pat. No. 5,547,405,
  • FIG. 10 represents an experimental tripolar capacitance to show the reduction of the inductive effect obtained
  • FIG. 11 represents the equivalent model of the three-pole capacitance illustrated in FIG.
  • FIG. 12 represents a curve for increasing the inductance of the central part, or connection zone, of the three-pole capacitance when the width of this central part is varied.
  • the capacitance 23, formed by the surface of the second wafer vis-à-vis the third wafer, is responsible for the intrinsic crosstalk of the plug between the pair of the first and second contacts and the pair of the third and sixth contacts,
  • the capacitance 67 made by the surface of the sixth wafer opposite the seventh wafer, is responsible for the intrinsic crosstalk of the plug between the pair of the seventh and eighth contacts and the pair of the third and sixth contacts,
  • the capacitors 34 and 56 respectively formed between the third and fourth contacts, on the one hand, and between the fifth and sixth contacts, on the other hand, are responsible for the intrinsic crosstalk of the plug between the pair of the fourth and fifth contacts and the pair of the third and sixth contacts.
  • the theoretical crosstalk compensation scheme for an RJ45 standard plug comprises, in an insert, a capacitance 13 between the first and third contacts, a capacitance 35 between the third and fifth contacts, a capacitor 46 between the fourth and sixth contacts and a capacity 68 between the sixth and eighth contacts.
  • a capacitance 13 between the first and third contacts a capacitance 13 between the first and third contacts
  • a capacitance 35 between the third and fifth contacts a capacitor 46 between the fourth and sixth contacts
  • a capacity 68 between the sixth and eighth contacts.
  • the capacitance 13 compensates for the capacitance 23 in order to reduce the crosstalk between the pair of the first and second contacts and the pair of the third and sixth contacts,
  • capacitance 68 compensates for capacitance 67 in order to reduce the crosstalk between the pair of the seventh and eighth contacts and the pair of the third and sixth contacts and
  • the capacitors 35 and 46 compensate the capacitors 34 and 56 in order to reduce the crosstalk between the pair of the fourth and fifth contacts and the pair of the third and sixth contacts.
  • the capacitive couplings of the plug are thus compensated by the capacitive couplings of the insert.
  • the more capacitive compensation couplings of the insert are close to the capabilities of the plug the higher the level of performance of the torque formed of the insert and the plug is high. Indeed, the conductors located between the capacitive couplings of the plug and the capacitive compensation couplings of the insert, introduce inductances detrimental to the compensations sought.
  • the intrinsic capacitive couplings of the plug and the compensation couplings made in the insert are balanced.
  • FIG. 2 only the conductive parts of a particular embodiment of an insert which is the subject of the present invention are shown.
  • FIG. 2 shows eight consecutively referenced contacts 101 to 108. These contacts are divided into two groups of contacts 110 and 111 respectively comprising the odd reference contacts 101, 103, 105 and 107 and the even reference contacts. 102, 104, 106 and 108.
  • the contacts have substantially linear and substantially parallel portions which define a first direction, perpendicular to these substantially linear and horizontal portions in FIGS. 3D, 3E, 4D and 4E and a second direction parallel to these substantially linear portions, vertical in these 3D figures. , 3E, 4D and 4E.
  • a dielectric film 120 separates the contacts 101 and 105, above, and the contact 103, below.
  • the contacts 101 and 105 are provided with rectangular lateral extensions, respectively 141 and 145, extending along the dielectric film 120.
  • the contact 103 is provided with rectangular lateral extensions 143 extending along the dielectric film 120 in a manner that to form, with the contacts 101 and 105 and their lateral extensions 141 and 145, a three-pole capacitance.
  • the contact 103 and its lateral extensions 143 form a central armature of this three-pole capacitance.
  • the contact 101 and its lateral extension 141 form a first lateral reinforcement.
  • the contact 105 and its lateral extension 145 form a second lateral reinforcement.
  • a first dimension of the central armature, or length, measured in the first direction, horizontal in 3D figures, 3E, 4D and 4E, is greater than a second dimension measured in the second direction, vertical in 3D, 3E, 4D and 4E.
  • the second dimension defines the "widths" of the zones of the central frame mentioned below.
  • the average width of the central reinforcement between the zones where the said central reinforcement is opposite the lateral reinforcement is greater than, in the order of increasing preference, one-third, one-half, two-thirds and three-quarters of the average width of said central frame in said areas. Even more preferentially, the average width of the central reinforcement between the zones where said central reinforcement is opposite the lateral reinforcement is greater than or equal to the average width of the central reinforcement in these zones.
  • the average widths are the minimum widths because the latter are constant.
  • the minimum width of the central armature, between the zones where said central armature is opposite the lateral armatures is greater than, in the order of increasing preference, one-third, one-half, two-thirds and three-quarters the average width of said central armature in said areas.
  • the minimum width of the central frame, between the zones where said central frame is in Side frames look is greater than or equal to the average width of the center frame in these areas.
  • the minimum width and the average width of the central armature, between the zones where said central armature is opposite the lateral armatures are equal to the average width of said central armature. in said areas.
  • the minimum width of the electrical connection between the two plates of the capacitors 3 (respectively 6) is about one fifth of the average width of the armatures of the capacitors 3 (respectively 6), which induces a non-negligible inductive effect.
  • the average width of the central reinforcement, between the zones where it is opposite the lateral reinforcement is, in the order of increasing preference, greater than one-third, half, two-thirds of the distance between the side frames. Even more preferably, the average width of the central frame, between the areas where it is opposite the side frames, is greater than or equal to the distance between the side frames.
  • the average widths are the minimum widths because the latter are constant.
  • the minimum width of the central frame, between the areas where it is opposite the side frames is, in the order of increasing preference, greater than one-third, half, two-thirds of the distance between the side frames. Even more preferably, the minimum width of the central frame, between the areas where it is opposite the side frames, is greater than or equal to the distance between the side frames.
  • a three-pole capacitance thus constituted is characterized by the virtually total absence of an inductive effect between the two parallel armatures lying opposite a single armature.
  • the contact 107 is, with respect to the dielectric film 120, on the same side as the contact 103.
  • a dielectric film 130 separates the contacts 104 and 108, below, and the contact 106, above.
  • the contacts 104 and 108 are provided with rectangular lateral extensions, respectively 144 and 148, extending along the dielectric film 130.
  • the contact 106 is provided with rectangular lateral extensions 146 extending along the dielectric film 130 so to form, with the contacts 104 and 108 and their lateral extensions, a three-pole capacitance.
  • a three-pole capacitance identical to that formed between the contacts 101, 103 and 105 is formed between the contacts 104, 106 and 108.
  • the contact 102 is, with respect to the dielectric film 130, on the same side as the contact 106.
  • the contact 101 descends to join the plane of the dielectric film 130. Then the contacts 101 and 102 are parallel to each other and return, after a curved zone forming an acute angle, towards the rear of the insert to form their zone curved contact forming an obtuse angle.
  • the contact 107 goes down to join the plane of the dielectric film 130. Then the contacts 107 and 108 are parallel to each other and to the contacts 101 and 102.
  • the contact 103 and the contact 105 are substantially parallel and have a curved contact zone forming an obtuse angle.
  • the contact 104 and the contact 106 are substantially parallel and have a curved contact zone forming an obtuse angle.
  • Each of the separated contact groups comprising respectively the even reference contacts and the odd reference contacts, thus comprises four contacts, three of which, with conductive lateral extensions, have a three-pole capacitance.
  • a dielectric layer for example a polyimide film, is provided for separating the armatures of each three-pole capacitor.
  • multipole capacitors has the advantage of eliminating the parasitic inductances of the connections between capacitors.
  • the removal of these parasitic inductances improves the efficiency of the compensations which has the effect of ensuring a better performance by increasing the bandwidth of the product as well as the insulation between pairs.
  • the lateral extensions each have a rectangular parallelepiped shape, their inductance is reduced with respect to a shape that would have included a finer intermediate portion.
  • the insert illustrated in FIG. 2 is constituted by assembling, in particular, two subassemblies, improperly called "half-insert" thereafter, which solidarise, each, the one of the two groups of contacts formed even contacts, on the one hand, and odd contacts, on the other hand.
  • the first half-insert illustrated in FIGS. 3A to 3E, comprises a body 305 which secures the contacts 101, 103, 105 and 107 and the dielectric film 120.
  • Each of the contacts comprises an end portion 310, intended for its connection with a line electrical connector connected to the insert, and a longitudinal extension 315 which comprises a contact zone with a plate homologous to the corresponding plug.
  • the longitudinal extensions of the extreme contacts, 101 and 107 have an elbow forming an acute angle before reaching the contact zone.
  • the longitudinal extensions of the central contacts, 103 and 105 have obtuse angles, including the angle formed at the contact area.
  • FIGS. 3C to 3E illustrate the shape of the lateral extensions 141, 143 and 145 of the contacts 101, 103 and 105, inside the body 305.
  • the contact 103 has two lateral extensions 143 extending respectively to the contacts 101 and 105.
  • the contact 101 has a lateral extension 141 extending towards the contact 103.
  • the contact 105 has a lateral extension 145 extending towards the contact 103.
  • the second half-insert illustrated in FIGS. 4A to 4E, comprises a body 405 which secures the contacts 102, 104, 106 and 108 and the dielectric film 130.
  • Each of the contacts comprises an end portion 410, intended for its connection with a line electrical connector connected to the insert, and a longitudinal extension 415 which comprises a contact zone with a plate homologous to the corresponding plug.
  • the longitudinal extensions of the extreme contacts, 102 and 108 have an elbow forming an acute angle before reaching the contact zone.
  • the longitudinal extensions of the central contacts, 104 and 106 have obtuse angles, including the angle formed at the contact area.
  • FIGS. 7A to 7H which represent, respectively, the contacts 101 to 108 in their respective half-inserts, that the angles formed by the bends at the contact zones of the four central contacts are chosen to distance these contacts. reduce the parasitic capacitances they generate and thus reduce the crosstalk.
  • FIGS. 4C to 4E illustrate the shape of the lateral extensions 144, 146 and 148 of the contacts 104, 106 and 108, inside the body 405.
  • the contact 106 has two lateral extensions 146 extending respectively to the contacts 104 and 108.
  • the contact 108 has a lateral extension 148 extending towards the contact 106.
  • the contact 104 has a lateral extension 144 extending towards the contact 106.
  • a film of dielectric material provides electrical insulation and allows the constitution of a tripolar capacitor.
  • FIG. 3B shows that the first half-insert comprises, on the opposite side to the side of the contact zones, lugs 350 and holes 355 which respectively correspond, in FIG. 4A, in the second half-insert, on the contact zones, 360 holes, pins 365 to achieve a precise assembly of the two half-insert during the constitution of the insert.
  • FIG. 5 shows that the equivalent electrical diagram of the insert illustrated in FIGS. 2 to 4E comprises two three-pole capacitors 135 and 468 formed respectively, in the body 305 of the first half-insert, between the lateral extensions of the contacts 101, 103 and 105 and, in the body 405 of the second half-insert, between the lateral extensions of the contacts 104, 106 and 108.
  • These three-pole capacitors have the particular advantage of significantly reducing the problems of parasitic inductance.
  • FIG. 6 shows that in order to produce an insert which is the subject of the present invention, the following is carried out:
  • the experimental tripolar capacitance 705 serving to show the reduction of the inductive effect obtained has a rectangular central frame 710 extending for example over a length 711 of 6 mm and having a width 712 of 1 mm and two side frames 713 and 714 of length 1, 5 mm and width of 1 mm completely overlapping the ends of the central frame 710.
  • the equivalent model of this three-pole capacitance is composed of two capacitors C1 715 and C2 720 formed by the overlapping zones of the lateral armatures and of the central armature 710 separated by two inductors L1 725 and L2 730 formed by the so-called "central" zone of the central armature 710 which separates the two overlapping zones by the lateral armatures 713 and 714.
  • the contacts 735, 740 and 745 are also represented in FIG. 11.
  • the ratio of the resulting width to the initial width is on the abscissa and the rate of increase of the inductance 750 is on the ordinate.
EP09740401A 2008-07-28 2009-07-28 Einlage und verfahren zum zusammenbau einer solchen einlage Active EP2313948B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0855178A FR2934425B1 (fr) 2008-07-28 2008-07-28 Insert et procede d'assemblage d'un tel insert.
PCT/FR2009/051517 WO2010012954A1 (fr) 2008-07-28 2009-07-28 Insert et procédé d'assemblage d'un tel insert

Publications (2)

Publication Number Publication Date
EP2313948A1 true EP2313948A1 (de) 2011-04-27
EP2313948B1 EP2313948B1 (de) 2012-09-12

Family

ID=40364342

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09740401A Active EP2313948B1 (de) 2008-07-28 2009-07-28 Einlage und verfahren zum zusammenbau einer solchen einlage

Country Status (6)

Country Link
US (1) US8128432B2 (de)
EP (1) EP2313948B1 (de)
CN (1) CN102113182B (de)
FR (1) FR2934425B1 (de)
RU (1) RU2487448C2 (de)
WO (1) WO2010012954A1 (de)

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Also Published As

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CN102113182B (zh) 2013-08-28
FR2934425B1 (fr) 2021-07-30
WO2010012954A1 (fr) 2010-02-04
CN102113182A (zh) 2011-06-29
RU2487448C2 (ru) 2013-07-10
US8128432B2 (en) 2012-03-06
EP2313948B1 (de) 2012-09-12
RU2011107244A (ru) 2012-09-10
US20110136382A1 (en) 2011-06-09
FR2934425A1 (fr) 2010-01-29

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