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
  • H01R13/648—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 the field of electrical connectors for high frequencies, typically of the order of or greater than 600 MHz, in particular for local business networks. Illustrated in Figures 1 and 2 appended respectively, seen in longitudinal section and seen in cross section, an element of a known electrical connector for high frequencies and in Figures 3 and 4 respectively, seen in longitudinal section and seen in section transverse this known connector in the assembled position.
• the known connector illustrated in FIGS. 1 to 4 comprises two identical elements 10 having a hermaphrodite interface, the coupling of which is done by two "mirror" rotations (left-right then bottom-top) followed by an insertion in the axis of the contacts.
• Each element 10 comprises: - an electrically insulating body 20 which has four parallel rectangular strips 22, 24, 26, 28,
• a shield 30 consisting of a molded metal piece (zamak for example) which surrounds each bar on three sides,
• the shields 30 form a combination of four cells which each house a pair of contacts 41-47, as seen in particular in FIG. 4.
• the known connector illustrated in Figures 1 to 4 appended comprises an element 10 forming a plug and an element 10 forming a socket.
• the interfaces being identical, the distinction between the plug and the socket is made by the use of two external shells of plastic material internally metallized to ensure the continuity of the shielding.
• One shell is said to be male, the other female.
• the two hulls are fitted with mechanical polarizers avoiding reversing the direction of insertion.
• this known connector is not entirely satisfactory.
• this known connector has significant leaks at the level of the electromagnetic joint plane, referenced 60, 62 in FIGS. 1 to 4, corresponding to the longitudinal joint plane defined between the shields 30 of the two elements 10.
• the interfacial rear part of the known connector has a discontinuity in the shielding between the self-stripping contacts.
• the present invention now aims to improve the known electrical connectors for high frequencies.
• a connector of the type comprising two elements adapted to be engaged by translation, each element comprising a body of electrically insulating material provided with electromagnetic shielding and which carries several electrical contacts, characterized by the fact that the shields of each element comprise a portion in the form of a cage provided with an internal spider defining cells each accommodating a pair of contacts, and said shields forming, in the assembled position, an electromagnetic joint plane generally transverse to the direction of engagement connector elements.
• FIGS. 1 to 4 previously described represent a known electrical connector conforming to the state of the art
• FIGS. 5, 6 and 7 respectively represent views in longitudinal section, at the end and external lateral view of an element forming an electrical connector socket according to the present invention
• FIG. 11 represents a view in longitudinal section of the element taken and of the aforementioned plug element in the assembled position
• FIGS. 12 and 13 schematically illustrate a clamping ring provided with an elastic scraper according to the invention adapted to stress the earth braid of a cable
• FIG. 14 shows a schematic exploded perspective view of a hermaphrodite connector element according to another alternative embodiment of the invention.
• FIG. 18 shows a perspective view of the shielding of this connector element according to this alternative embodiment of the invention.
• This element 100 comprises: a body 110 made of electrically insulating material, eight contact blades 120, 121, 122, 123, 124, 125, 126 and 127 made of electrically conductive material, an electromagnetic shield 130, four insertors 140, a cable clamp 150 and a clamping ring 160.
• the body 110 can be formed for example by molding in electrically insulating plastic.
• the body 110 is formed of four parts 110a, 110b, 110c,
• the beams 112 to 115 are of rectangular section, mutually parallel and equidistant two by two.
• the width / height ratio of the section of beams 112-115 is typically of the order of 3/1.
• the connection zone between the beams 112 to 115 and the rear plates 111 is pierced with eight channels receiving the blades 120 to 127. These contact blades 120 to 127 can be produced. Any suitable electrically conductive material. It is preferably elastic bronze gold.
• the blades 120 to 127 extend in a general direction parallel to the direction of insertion on contacting.
• the blades 120 to 127 are arranged two by two respectively on the beams 112 to 115, more precisely, as can be seen in FIGS. 5 and 6, on parallel faces opposite these.
• the blades 120 to 127 are preferably arched, convex towards the median plane of the element 100 parallel to the faces of the beams 112 to 115 which carry the blades 120 to 127. As can be seen in FIG. 5, the front end of the blades 120 to 127 can be maintained by a draft formed on the free end of beams 112 to 115.
• the rear end of the blades 120 to 127 is folded at 90 ° to form a self-stripping contact accessible on the outside of the plates 111 and adapted to cooperate with an inserter 140.
• the shield 130 formed from an electrically conductive material is preferably molded, for example from zamak.
• the shield 130 comprises a cage 132 of rectangular cross section which surrounds the beams 112 to 115 and the blades 120 to 127.
• the cage 132 has an internal recess 131, in the vicinity of two thirds of its length.
• the cage 132 also has a projection 133 on one of its faces. This protrusion 133 is provided with an opening 134 at its end adjacent to the recess 131.
• the shield 130 further comprises a cross 135 housed in the cage 132.
• the cross 135 is formed by two walls 136, 137 orthogonal to each other and contiguous.
• the two walls 136, 137 are respectively parallel and orthogonal to the walls of the cage 132.
• the two walls 136, 137 are connected on the internal faces of the walls of the cage 132.
• the front ends of the walls 136, 137 of the spider are coplanar with each other and coplanar with the recess 131
• this embodiment corresponds to that shown diagrammatically in FIG. 14.
• the blades 120-127 and beams 112-115 extend beyond the cross-member 135 preferably up to the immediate vicinity of the opening outline of the cage 132.
• the spider 135 crosses the plate 111 and opens onto the rear end of the latter in the form of a needle 138 centered on the connector.
• the needle 138 protrudes widely from the rear of the plate 110.
• the inserters 140 can be pivotally or translationally mounted on the body 110. They are adapted, in a manner known per se, to force the electrically conductive strips of a conductor coated with an insulator from a cable, in the forks contact stripping formed on the rear ends of the contact blades 120 to 127.
• the cable clamp 150 is preferably made of metal. It comprises a front end piece 152 of rectangular cross section complementary to the external envelope of the cage 132 of the shielding.
• the cable clamp 150 further comprises a cylindrical rear drum 154 split longitudinally at least over part of its length.
• the barrel 154 is threaded on its external surface.
• the connection zone between the endpiece 152 and the barrel 154 is tapered towards the barrel.
• the ring 160 is internally threaded and adapted to cooperate with the thread of the barrel 154 to tighten the latter on a cable.
• FIG. 8 to 10 There is shown in Figures 8 to 10 appended a second connector element 200 according to the present invention forming a plug.
• the element 200 illustrated in FIGS. 8 to 10 comprises a body 210 of electrically insulating material, eight contact blades of electrically conductive material 220,
• the body 210 is essentially formed by four beams 212, 213, 214, 215 of rectangular cross section (identical to that of beams 112-115), parallel and equidistant.
• the blades 220 to 227 are preferably made of elastic gilded bronze. They generally extend parallel to the direction of insertion of the connector elements 100, 200.
• the contact blades 220 to 227 are placed respectively in pairs on the external faces of the beams 212, 213, 214 and 215.
• the blades 220 to 227 are preferably slightly arched, convex towards the outside, that is to say away from the median plane parallel to the faces of the beams 212 to 215 which carry them. As can be seen in FIG. 8, the front ends of the blades 220 to 227 are preferably held in the beams 212 to 215.
• the rear ends of the blades 220 to 227 are bent at 90 ° to form self-stripping contacts accessible on the outside of the body 210 and adapted to cooperate with the inserters 240.
• the shield 230 is made of electrically conductive material. It is preferably molded, for example in zamak.
• the shield 230 comprises a cage 232 of rectangular cross section which surrounds the beams 212 to 215 and the blades 220 to 227.
• the cage 232 is provided with a recess 231 on its external surface. This recess 231 is adapted to receive the free end of the cage 232 as seen in FIG. 11.
• the cage 232 has a protrusion 233 on one of its faces, which is homologous to the protrusion 133 of the element 100.
• This protrusion 233 is suitable for housing a locking element 270 which will be described in more detail by the after.
• the shield 230 has a cross-member 235 housed in the cage 232.
• the cross-member 235 is formed by two walls orthogonal to each other and contiguous 236, 237. These walls 236, 237 are respectively parallel and orthogonal to the walls of the cage 232. They are connected to the internal faces of the walls of the cage 232.
• the front ends of the walls 236, 237 forming the spider 235 are coplanar with each other and coplanar with the opening outline of the cage 232.
• the geometry and the dimensions of the beams 112, 113, 114 and 115 are adapted so that these come to be housed during assembly between the external faces of the beams 212, 213, 214, 215, the internal faces of the cage 232 and the vertical wall 237 of the cross.
• the cage 232 is housed during assembly between the external faces of the beams 112, 113, 114, 115 and the cage 132.
• the large faces of the beams 212, 213, 214, 215 opposite the faces receiving the contact blades 220 to 227, are adjacent to the horizontal median wall 236 of the spider 235.
• the beams 112, 113, 114, 115 are spaced from the middle wall 136 by a distance equal to the thickness or height of the beams 212-215.
• the beams 112-115 are adjacent by one of their short sides to the wall 137 and likewise the beams 212-215 are adjacent by one of their short sides to the wall 237.
• the beams 212-215 are adjacent by their second short side to the internal surface of the walls of the shielding cage 232.
• the other walls of this cage 232, orthogonal to those mentioned above, are located at a distance from the external surface of the beams 212-215 which carries the contact blades 220-227, equal to the thickness of the beams 112 to 115.
• the thickness of the walls of the cage 232 is equal to the thickness of the gap existing between the internal surface of the cage 132 and the beams 112 to 115. Furthermore, the lengths of the beams and cross-pieces are such that after assembly the planes of ends of the crosses 135 and 235 are adjacent.
• the length separating the step 131 and the end of the cage 132 is equal to the length separating the step 231 and the free end of the cage 232.
• each of the contact blades 120 to 127 of the element 100 comes to rest against a contact blade 220 to 227 of the element 200.
• the spider 235 extends over the rear of the body 210 in the form of a needle 238 centered on the element 200.
• the inserters 240, cable clamp 250 and ring 260 are respectively similar to the above-mentioned inserters 140, cable clamp 150 and ring 160.
• the locking piece 270 placed in the protrusion 233 is preferably formed of a U-shaped piece of elastic material.
• This locking piece 270 comprises a longitudinal fixed base element 271 linked to the shielding 230, a generally parallel locking tab 272 provided with a toothing 273 at its free end and an elastic connection branch 274.
• the toothing 273 is adapted to penetrate in the opening 134 during assembly, by bending the connection zone 270. To dismantle the connector, it suffices to request this zone 270 to retract the toothing 273.
• FIG. 11 represents the connector according to the present invention in the assembled position
• this connector according to the present invention makes it possible to keep the electromagnetic shielding while along each pair with minimum leakage.
• This connector in fact makes it possible to define four cells materialized by the cross-pieces 135, 235 going from the electromagnetic joint plane at the interface until after the wires have been connected in the self-stripping contacts. After these self-stripping contacts, the cable resumes the individual shielding of each pair flush with the cross.
• the present invention thus makes it possible to optimize the shielding by avoiding any crosstalk by leakage at the level of the electromagnetic joint plane.
• the braces 135, 235 may, for example, be four straight sections or joint planes perpendicular to the longitudinal axis of the connector but offset in the longitudinal direction as illustrated in FIG. 15.
• the longitudinal gaps between the different sections formed by the front ends of the braces are typically offset by a multiple of ⁇ / n.
• the free front edges of the walls 136, 137 and 236, 237 forming the braces 135, 235 are also provided with notches 139, 239.
• Such a notching 139, 239 makes it possible to increase the contact surface between the braces 135, 235 and consequently reduce the transfer impedance and the contact resistance of the ground contact to ensure a better seal against electromagnetic leaks.
• the geometry of the front ends of the braces 135 and 235 must be complementary so that, despite the longitudinal offset and / or the notching, the two braces are adjacent.
• the shielding on the rear of the connector and the cable ground connection are mainly ensured by the cable ties 150, 250 which allow the "tunnel" effect to be maintained at the level of the insulation-displacement contacts by marrying the fins externally or the crossbars 135, 235 and thanks to a mechanical retention of the cable relative to the shielding of the connector produced by the conical threaded clamping ring 160, 260 tightening the cable clamp 150, 250.
• the needles 138, 238 disposed at the rear of the shielding, in the center of the cross-pieces, ensure contact with the individual shields of the pairs of conductors.
• a cable C is shown diagrammatically on the front end of which the ground braid has been turned over. T, as well as a cable clamp 150 and a clamping ring 160 provided with an elastic scraper 162.
• FIG. 13 shows the same assembly after engagement of the tightening ring 160 on the cable clamp 150. It is noted that the braid T is clamped between the elastic scraper 162 and the cable clamp 150.
• the socket 100 illustrated in Figures 5 to 7 attached can be mounted either in plinth or wall supports at the access points, but also in the patch panels at the distributors.
• a socket 100 can in particular be mounted in a housing fitted with a plastron with a tilting cover allowing the housing to be closed in the absence of a plug.
• FIG. 17 and 18 Is illustrated in Figures 17 and 18 attached an alternative embodiment of an element 1000 of hermaphrodite connector according to the present invention.
• a connector element 1000 which mainly comprises:
• - bodies 1100, 1110, 1120, 1130, 1140, 1150, 1160 and 1170 made of electrically insulating material, which carries - contact pairs 1200, 1210, 1220, 1230, 1240, 1250, 1260 and 1270, and
• Shield 1300 can be produced by any suitable means, for example by metallization of a plastic case or by molding an electrically conductive material, for example zamak.
• the shield 1300 comprises a central portion 1310, in the shape of an "8" defining four cells of identical rectangular sections, intended to receive one of the bodies 1100, 1110, 1120 and 1130 of complementary section respectively, each carrying a pair of contacts.
• This central part 1310 is extended rearwards by longitudinal fabrics 1320 forming an inverted double "E" having a common core. These fabrics 1320 are placed in the extension of the walls of the central part 131. They thus define four open dwellings laterally towards the outside of the connector, intended to receive the complementary bodies 1140, 1150, 1160 and 1170 contact support as well as the inserters 1400, 1410, 1420 and 1430.
• the lateral opening of the housings defined by the fabrics 1320 is intended to allow the displacement of the inserters 1400, 1410, 1420 and 1430 necessary to engage the conductors on the contacts 1210 to 1270.
• the central part 1310 of the shield is extended forwards by partitions 1330 adapted to interpenetrate with identical partitions of a hermaphrodite complementary connector element.
• these partitions 1330 include a partition 1332 in "E”, two partitions 1334 and 1335 in “U” and two bars 1336, 1337.
• the partition 1332 at "E” is open towards a longitudinal median plane of the connector. It thus defines two cells intended to respectively receive a pair of male pins 1240, 1250 and 1260, 1270.
• the external surface of this partition 1332 extends the external surface of three of the walls of the central part 1310. However the partition 1332 has a thickness less than the thickness of the walls making up the central part 1310 at "8".
• a recess 1331 visible in FIG. 18, directed towards the front of the connector, internal to the aforementioned cells and transverse to the direction of engagement of the connector elements.
• the partitions 1334 and 1335 in “U” have their cores adjacent to the abovementioned longitudinal median plane, opposite the openings of the partition 1332 in “E”. They thus have their "U” directed towards the outside of the connector opposite the core of the partition 1332.
• the bars 1336 and 1337 are in turn arranged at the opening of these partitions 1334 and 1335 in "U”.
• the partitions U and 1334 and 1335 thus define, in combination with the strips 1336 and 1337, two cells intended for receive respectively one of the supports 1100, 1110 each carrying a pair of female plugs 1210, 1220 and 1230, 1240.
• the partitions 1334 and 1335 in "U” and the strips 1336 and 1337 have a thickness less than the thickness of the walls composing the central part 1310 at "8".
• a recess 1338 visible in FIG. 18, directed towards the front of the connector, external to the abovementioned cells and transverse to the direction of engagement of the connector elements.
• bars 1336, 1337 independent of the partitions 1334, 1335 makes it possible to have an elastic element suitable for establishing good electrical contact with the shielding element (partition 1332) of the complementary connector element.
• the bars 1336, 1337 can be provided with a protuberance adapted to come to rest on said shielding element (partition 1332) of the complementary connector element.
• the cross section of the structures defined by the partitions 1334, 1335 in "U” and the bars 1336 and 1337 is complementary to the cross section of the cells defined by the partition 1332.
• the width of the recess 1331 is identical to the thickness of the partitions 1334, 1335 and strips 1336 and 1337, while the width of the recess 1338 is identical to the thickness of the partition 1332.
• the shield 1300 defines a hermaphrodite connector element allowing the insertion of the structures defined by the partitions 1334, 1335 in a "U” shape and the bars 1336 and 1337 in the cells defined by the partition 1332 of a complementary connector element.
• the electromagnetic joint plane transverse to the direction of engagement of the connector elements is defined by the contact plane between the recesses 1331, 1338 and the top of the partitions 1332, 1334, 1335 and of the bars. 1336 and 1337 placed opposite.
• the partition 1332 is moreover provided on the external surface of one of its lateral wings, with a protuberance 1302, for example a parallelepiped, which is flush with the abovementioned longitudinal median plane.
• the shield 1300 is preferably provided on its outer surface with projecting teeth 1304 designed to immobilize by snap-fastening shell shells 1800, 1810 shown diagrammatically in FIG. 17.
• the support bodies made of electrically insulating material 1100 and 1110 are constituted essentially of parallelepipedal blocks of straight section complementary to the section of the cells defined by the partitions 1334, 1335 and the bars 1336 and 1337, as well as the cells defined by the central part 1310. They extend over the length of the central part 1310 and the abovementioned cells defined by the partitions 1334, 1335 and the bars 1336 and 1337.
• These bodies 1100 and 1110 are each provided with two longitudinal channels each receiving a female plug 1200, 1210, 1220 and 1230.
• the support bodies of electrically insulating material 1120 and 1130 consist essentially of parallelepipedal blocks of straight section complementary to the section of the cells defined by the central part 1310. They extend over the length of this central part 1310. These bodies 1120 and 1130 are each provided with two longitudinal channels each receiving a male pin 1240, 1250, 1260 and 1270.
• the support bodies 1140, 1150, 1160 and 1170 respectively extend the support bodies 1100, 1110, 1120 and 1130. They each have two open channels laterally towards the outside of the connector to receive a pair of contacts 1200 to 1270 and allow the engagement of the conductors on these contacts thanks to the inserters 1400 to 1430 respectively.
• each contact 1200 to 1270 is provided on its rear end accessible at the level of the channels of the support bodies 1140 to 1170.
• a self-stripping contact fork as seen in Figure 17.
• the support bodies 1140, 1150, 1160 and 1170 could be formed in one piece respectively with the support bodies 1100, 1110, 1120 and 1130.

Landscapes

• Details Of Connecting Devices For Male And Female Coupling (AREA)
• Connector Housings Or Holding Contact Members (AREA)
• Non-Reversible Transmitting Devices (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=9506033

Family Applications (1)

Country Status (8)

Families Citing this family (27)

Family Cites Families (9)

• 1997
  • 1997-04-17 FR FR9704751A patent/FR2762453B1/fr not_active Expired - Fee Related
• 1998
  • 1998-04-15 WO PCT/FR1998/000756 patent/WO1998048488A1/fr active IP Right Grant
  • 1998-04-15 EP EP98921537A patent/EP0909471B1/de not_active Expired - Lifetime
  • 1998-04-15 US US09/202,845 patent/US6129586A/en not_active Expired - Fee Related
  • 1998-04-15 DE DE69837832T patent/DE69837832T2/de not_active Expired - Lifetime
  • 1998-04-15 JP JP10545144A patent/JP2000513137A/ja active Pending
  • 1998-04-15 AT AT98921537T patent/ATE363747T1/de not_active IP Right Cessation
  • 1998-04-15 CA CA002258923A patent/CA2258923A1/fr not_active Abandoned

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events