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
  • H01R13/6473—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
  • 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]
  • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
  • H01R13/6592—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable
  • H01R13/6593—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable the shield being composed of different pieces
• • 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]
  • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
  • H01R13/6592—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable
• • 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
  • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
  • H01R13/6658—Structural association with built-in electrical component with built-in electronic circuit on printed circuit board

Definitions

• the invention relates to a connector adapted to be used in cable connections, high speed and designed to provide a minimum of disturbance to the transferred signals.
• the invention also relates to a pair of connectors, male and female, respectively, capable of cooperating satisfactorily in a high-speed link.
• the invention achieves these objectives, including the constant impedance connection.
• the invention relates to a connector adapted to at least one two-wire, shielded high-speed transmission line with predetermined constant impedance, characterized in that it comprises in combination:
• a metal case comprising a sleeve open at one of its ends, said sleeve housing said insert and said pins, and
• a printed connection circuit installed in said housing connected to said pins and configured to control the geometry of the connection of said two-wire line in said housing.
• the type of connector defined above can advantageously be obtained by appropriate modification of a connector complying with MIL DTL 83513.
• This standard defines a type of connector known in the art as the "micro-D”.
• the keying is obtained by the D-shape of the metal sleeve of the connector housing, housing the pins.
• the printed circuit mentioned above makes it possible to connect the shielded cables respecting the impedance matching, in particular the spacing of the two wires and facilitating the soldered connections.
• said printed circuit included in the housing comprises two parallel tracks, substantially in the extension of the two pins.
• the latter are respectively connected to the first ends of these two tracks while the ends of the two-wire line (the cores of the two shielded wires) are intended to be soldered at the second ends of these two tracks, respectively.
• said printed circuit comprises a third track perpendicular to said two parallel tracks and in the vicinity of said second ends thereof, for connecting the or each shielding sheath of said shielded two-wire line.
• a ground plane may advantageously be provided on the other side of the printed circuit to obtain the desired impedance between the two parallel tracks.
• the invention also relates to a pair of connectors, each according to the foregoing description, one having at least one pair of male pins and the other having at least one pair of female pins.
• one of the connectors comprises a metal sleeve referred to as “sleeve outer "of greater section than that of the corresponding metal sleeve of the other connector said” inner sleeve ", so as to slide along the latter, during the coupling of the two connectors
• said outer sleeve has a sufficient length for its free end to come into electrical contact with a base of the connector comprising said inner sleeve, thereby considerably improving the quality and continuity of the shielding against external electromagnetic fields, The quality of the electrical contact is guaranteed by a mechanical interlock between the two housings, after electrical coupling, preferably by means of screws and nuts.
• FIG. 1 is a perspective view of a two-way two-wire connector according to the invention, the housing of this connector being open;
• FIG. 2 is a schematic sectional view illustrating a pair of connectors, male and female pins, according to the invention, before coupling;
• Figure 3 is a view similar to Figure 2 illustrating the two connectors after coupling
• FIG. 4 is an end view of a four-way two-wire connector
• FIG. 1 shows a connector 11 making it possible to connect two high-speed two-wire transmission lines 13, 14.
• This connector may be connected to either a similar connector, for example to extend the lines, or to a fixed connector installed in an electronic device processing data carried by these lines.
• each transmission line 13, 14 is constituted by a conventional cylindrical shielded cable enclosing two insulated conductor wires 16, 17 twisted into a common braided metal sheath. The sheath is itself surrounded by an insulating sleeve 21.
• the drawings illustrate the connectors already connected to the transmission lines.
• the two shielded cables are themselves surrounded by a metal braid 22 electrically connected to the metal housing 23 of the connector via a metal tube 24 comprising a shoulder 24a engaged in a cavity of the housing.
• the braid is set on this tube.
• Each shielded two-wire transmission line 13, 14, described above has a predetermined constant impedance, for example 100 ohms.
• the metal case 23 consists of two assembled parts, a first part 23a supporting the interconnection components and a second part 23b forming a cover.
• the connector For each two-wire line, the connector comprises: - two parallel pins (which may be male pins
• a metal sleeve 30a or 30b (part of said first part of the housing) open at one of its ends and housing said insert and said pins.
• the housing 23 houses (for each two-wire line) a printed connection circuit 32 disposed between said pins 25a or 25b installed in a sleeve 30a or 30b and said corresponding shielded two-wire transmission line.
• this printed connection circuit 32 makes it easier to connect the shielded cable. It also makes it possible to control the geometry of the two-wire line through said housing, that is to say between the cable and the two corresponding parallel pins.
• Each sleeve 30a or 30b houses an insert 26a or 26b which has only two parallel pins.
• the housing has two sleeves 30a and therefore houses two inserts 26a (located in the sleeves) and two printed circuits 32,
• Each circuit board comprises two parallel tracks 34 arranged substantially in the extension of the two pins 25a and said pins are respectively connected to first ends 35 of these two tracks.
• the ends of the two-wire line 13 or 14 can thus be soldered to second ends 36 of these two tracks, respectively.
• the printed circuit comprises a third track 39 perpendicular to said two parallel tracks and in the vicinity of said second ends 36 thereof. This third track allows the connection of the shielding sheath 20 by a simple weld.
• the printed circuit is mounted in a housing defined in said first portion of the housing 23a, in close proximity to the rear ends of said pins 25a or 25b and these are directly welded to said parallel tracks.
• the dielectric characteristics of Pinsert 26a or 26b and the insulating support of the printed circuit 32 as well as the spacing of the pins and the two parallel tracks condition a characteristic impedance variation as low as possible in the connector.
• the outer shield formed by both the braid 22 and the structure of the metal housing 23 protects the two-wire transmission lines of external electromagnetic radiation and any disturbances due to these lines.
• the two parts 23a and 23b comprise grooves 27 allowing the installation of seals (not shown). These seals, made of elastomer, can be loaded with conductive material to increase the effectiveness of the shielding.
• each printed circuit 32 is of double-face type so that it comprises a ground plane 42, extending over substantially its entire surface.
• This ground plane is defined on the other printed circuit board; it therefore extends parallel to said tracks 34,
• Said third track 39 is connected to the ground plane 42, for example by a junction 43 or a metallized hole extending through the insulator of the printed circuit.
• the ground plane is, in this example, connected to the metal case 23.
• At least one and preferably each metal sleeve 30a or 30b defined in said first housing portion has a foolproof outline.
• said contour has a shape of D, known per se.
• two adjacent sleeves have their inverted contours, (see Figures 4 and 5) which reduces the width of the connector.
• the two pins may be of the male or female type and, of course, the invention also aims at a pair of connectors, each of which conforms to the foregoing description, in which a connector comprises a pair of male pins
• one of the connectors comprises at least one aforementioned metal sleeve said outer sleeve, (here the sleeve 30b) of larger section than that of the or each sleeve, said inner sleeve (here the sleeve 30a), the other connector , so as to slide along the latter at the time of coupling of the two connectors.
• the outer sleeve 30b has a length sufficient for its free end 44 to come into electrical contact with a base 46 of the connector having the inner sleeve 30a (see Figures 2 and 3).
• the female pins 25b protrude from the corresponding insert 26b in an open cavity 45 delimited by the sleeve 30b which surrounds them.
• the latter is the outer sleeve.
• each male pin 25a is fully integrated into the corresponding insert 26a of the sleeve 30a and the latter is the inner sleeve. As can be seen in FIG. 2, each male pin 25a extends axially in a hole 47 of the insert 26a and the diameter of this hole is just sufficient to accommodate the corresponding female pin 25a of the other connector.
• the male pins could be housed in an outer sleeve and the female pins could be housed in a so-called inner sleeve.
• the connector shown in Figure 1 is of the two-way type, that is to say, it is adapted to achieve the simultaneous connection of two two-wire transmission lines.
• the connector according to the invention can be designed for a single channel; it then has only one sleeve housing an insert and a pair of pins.
• the same connector may have a greater number of sleeves, for the simultaneous connection of a corresponding number of lines.
• Each sleeve forming part of the same metal housing 23 then houses an insert 26b and two pins 25b.
• the sleeves are arranged side by side and in a single row.
• outer sleeves 30b As outer sleeves 30b, they form a single elongated block. The corresponding inner sleeves, on the other connector not shown, are separated.
• This connector provides simultaneous connection of four two-wire transmission lines.
• the sleeves are arranged side by side and following (at least) two parallel rows. In the example more specifically described in four ways, the sleeves are arranged in "square".

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• Details Of Connecting Devices For Male And Female Coupling (AREA)

Applications Claiming Priority (2)

Publications (2)

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• 2006
  • 2006-04-21 FR FR0651397A patent/FR2900280B1/fr not_active Expired - Lifetime
• 2007
  • 2007-04-20 US US12/298,024 patent/US7677927B2/en active Active
  • 2007-04-20 EP EP07731919.2A patent/EP2011197B1/de active Active
  • 2007-04-20 WO PCT/FR2007/051144 patent/WO2007122350A1/fr not_active Ceased
  • 2007-04-20 ES ES07731919.2T patent/ES2672141T3/es active Active

Non-Patent Citations (1)

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