EP3430691B1 - Connecteur coaxial comprenant un shunt, assemblage et procédé de fabrication d'un tel connecteur - Google Patents

Connecteur coaxial comprenant un shunt, assemblage et procédé de fabrication d'un tel connecteur Download PDF

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Publication number
EP3430691B1
EP3430691B1 EP17711164.8A EP17711164A EP3430691B1 EP 3430691 B1 EP3430691 B1 EP 3430691B1 EP 17711164 A EP17711164 A EP 17711164A EP 3430691 B1 EP3430691 B1 EP 3430691B1
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EP
European Patent Office
Prior art keywords
coaxial connector
core
graphite element
metal
shielding
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.)
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Application number
EP17711164.8A
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German (de)
English (en)
French (fr)
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EP3430691A1 (fr
Inventor
Jean-Luc Dubois
Bruno Cassany
Jérôme RIBOLZI
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Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
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    • 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
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/42—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency comprising impedance matching means or electrical components, e.g. filters or switches
    • H01R24/48—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency comprising impedance matching means or electrical components, e.g. filters or switches comprising protection devices, e.g. overvoltage protection
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/38—Electroplating: Baths therefor from solutions of copper
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/02—Electroplating of selected surface areas
    • C25D5/022—Electroplating of selected surface areas using masking means
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/04—Tubes; Rings; Hollow bodies
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
    • 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
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/42—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency comprising impedance matching means or electrical components, e.g. filters or switches
    • H01R24/44—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency comprising impedance matching means or electrical components, e.g. filters or switches comprising impedance matching means
    • 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
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/52—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency mounted in or to a panel or structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/06—Suspending or supporting devices for articles to be coated
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/10—Electrodes, e.g. composition, counter electrode
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/48—After-treatment of electroplated surfaces

Definitions

  • the invention relates to the field of high current measurements and relates more particularly to shunts and other shunt resistors allowing such measurements by shunting part of the current.
  • the invention relates more particularly to a coaxial connector comprising such a shunt, a coaxial cable comprising such a connector and a method of manufacturing a coaxial connector comprising a shunt.
  • a shunt is, by definition, a resistive element of very low impedance, such as an electrical conductor, allowing the current to pass from one point to another. an electrical circuit using very little energy.
  • a shunt is a resistive element making it possible to provide a resistive bridge between a core and a shielding of a coaxial connector.
  • Such coaxial connectors are known and in particular by those marketed by T&M RESEARCH PRODUCTS under the reference SDN-414.
  • This type of connector has the advantage of making it possible to protect certain electrical devices during intense current measurement over times which may be relatively short, this by diverting part of the current to the ground plane.
  • This type of connector thus has good current withstand (greater than 10,000A in nanosecond pulse) for a relatively high bandwidth, since it can reach 2 GHz.
  • This type of connector nevertheless has a certain number of drawbacks. Indeed, the shunt that it comprises does not have a constant frequency response and thus has higher resistance for frequencies above 100 MHz.
  • the integration of the shunt in this type of connector is quite relative, since the volume of the connector is much greater than that of a conventional coaxial connector, and this integration is done to the detriment of the bandwidth which does not exceed the 2 GHz.
  • the document EP 0 840 413 A1 has a coaxial connector with a discharge chamber between the center conductor and the shield.
  • the document CN 101 604 808 B also discloses a coaxial connector having a dielectric 4 between the central conductor 2 and the shield 1.
  • the mold for producing the dielectric is made of graphite.
  • the present invention aims to remedy several of these drawbacks and thus more specifically aims to provide a coaxial connector comprising a shunt, the shunt having a bandwidth greater than 12 GHz while offering equivalent current withstand and greater compactness. to that of the coaxial connectors of the prior art which comprises a shunt.
  • Such a graphite element allows the shunt to benefit from an optimized bandwidth.
  • the current flows on the surface of the conductive materials and this over a thickness corresponding to the thickness of the skin.
  • Graphite due to its low electrical conductivity, has a significant skin thickness.
  • the graphite element is therefore little influenced by this phenomenon and therefore makes it possible to obtain a bandwidth greater than 12 Ghz. What is more, because of this relative importance of its skin thickness, the graphite element makes it possible to obtain a homogeneous shunt behavior over a frequency range going from 0 to 12 GHz.
  • the integration of the shunt is optimized since the latter is directly integrated into the coaxial connector. This integration takes place without any harmful influence on the mechanical strength of the graphite element with respect to the rest of the connector and on the electrical characteristics of the shunt, due to the use of two metal deposits.
  • the coaxial connector, with the shunt that it comprises can also be fitted to an electrical device, the connector then being intended to allow connection to a coaxial cable; than a coaxial cable, the coaxial connector then being intended to allow connection to an electrical device, or even a coaxial connector.
  • Each of the first and second metal deposits can be made in a metal selected from the group consisting of copper, silver, gold, nickel, chromium, zinc, tin and lead.
  • Such metals make it possible to provide good contact between the graphite element, respectively the core and the shielding of the connector.
  • At least one of the first and second metal deposits can be copper.
  • Copper is particularly suitable for making it possible to contact the graphite element with the core and the shielding respectively, this by virtue of its good electrical conduction properties and the fact that the core, or even the shielding, are usually made of copper.
  • At least one of the first and second metallic deposits may comprise at least two layers of metal, each of the layers being made of a metal selected from the group comprising copper, silver, gold, nickel, chromium, zinc, tin and lead.
  • first layer to provide good conduction, such as a copper layer, between the graphite element and the core and the shielding respectively, and a second layer to protect the first layer.
  • This second layer can either act as a sacrificial anode, for example by being formed of zinc, or act as a protective layer as such, by being for example formed of chromium.
  • the coaxial connector may further include a second protective layer to protect at least one of the first and second metal deposits.
  • Such a second layer distinct from the first and second metallic deposits can limit or even prevent any contact of these metallic deposits with air or water which could corrode them.
  • the graphite element may be in the form of a graphite plate sized to position between the core and the shield.
  • the graphite element may have a thickness of between 5 and 250 ⁇ m, preferably between 10 and 100 ⁇ m.
  • Such a graphic element is particularly suitable for having a relatively low resistance and providing good current withstand this with a relatively high bandwidth, while occupying a low volume compatible with integration into a coaxial connector.
  • the shielding may include a metallic connection end piece shaped to cooperate with a complementary end piece of another coaxial connector according to a cooperation of the male / female type, the graphite element being positioned between the core and the metal tip, the second metal deposit providing an electrical and mechanical connection between the graphite element and the metal tip.
  • Such a coaxial connector is particularly suitable for allowing the connection of a coaxial cable or for allowing, when the connector is fitted with a coaxial cable, the connection to an electrical device.
  • the coaxial connector can be a connector of the SMA type, the connection end being a threaded end.
  • Such a coaxial connector particularly benefits from including a shunt according to the invention because of its applications which are generally at frequencies above 2 GHz.
  • the invention also relates to an assembly comprising a coaxial cable and at least one coaxial connector according to the invention.
  • Such a coaxial cable makes it possible to benefit from the advantages of the invention regardless of the electrical device to which it is connected.
  • the invention also relates to an electrical device comprising at least one coaxial connector according to the invention.
  • a step of protecting one face of the graphite element by means of a first protective layer said step of protecting one face of the graphite element being prior to the forming step.
  • the first and second electro-conductive deposit, and in which the step of forming the first and second metallic deposit consists in carrying out an electrolytic deposit between the graphite element and the core and the shielding respectively, the face of the graphite element being protected by the first layer.
  • the graphite element can be oversized to position itself, and in which the step of installing the graphite element comprises a sub-step of inserting the graphite element by shearing so as to place the latter between the core and the shielding with a suitable dimensioning.
  • Such a shear insertion step makes it possible to obtain a graphite element which is perfectly dimensioned to place the latter between the core and the shielding.
  • the figure 1 illustrates a coaxial connector 1 comprising a shunt according to the invention.
  • the coaxial connector shown on figure 1 being a coaxial connector 1 of the female type, the core 10 is provided by a hollow conductor intended to receive the end of the core of a male connector.
  • This same coaxial connector 1 is a connector of the SMA type (from the English terminology " SubMiniature version A " and in accordance with the IEC standard), as illustrated on the figure 3 , intended to equip an electrical device, as illustrated on the figure 2 , to allow connection with a coaxial cable comprising a complementary male connector.
  • the shielding 20 of the coaxial connector 1 comprises a metallic connection end piece 21.
  • This connection end piece 21 has a substantially planar rectangular base 21A, provided with a central orifice, and a hollow cylindrical body 21B of revolution extending from the base 21A with its axis of revolution substantially perpendicular to the base 21A .
  • the base 21A is provided on either side of the central hole with two peripheral screw passages to allow mounting of the coaxial connector on an electrical device 5.
  • the cylindrical body 21B extends from the base 21A with the hollow of the cylindrical body which extends the central orifice of the base 21A. In this way, the housing formed by the hollow of the cylindrical body 21B and by the central orifice of the base 21A is able to accommodate the dielectric 30 and partially the core 10.
  • connection end piece 21 is shaped to cooperate with a complementary end piece of another connector according to a cooperation of the male / female type.
  • Dielectric 30 is made from a dielectric material, such as polyethylene or polytetrafluoroethylene, which may be solid or in the form of a foam.
  • the graphite element 40 is presented, as illustrated in the figure 4n in the form of a graphite disc provided with a central opening for the passage of the core 10.
  • the graphite element is dimensioned to be positioned in the central opening of the base 21A between the base 21A and the core 10.
  • the thickness of the graphite element 40 is between 10 and 100 ⁇ m.
  • the graphite element 40 comprises the first circular face, through which it is in contact with the dielectric, and the second face, also circular, which is opposite the dielectric.
  • the first protective layer 42 covers the second face of the graphite element.
  • the first layer 42 is made of a dielectric material, such as a dielectric compound based on polymers or elastomers, this so as to protect the second face of the graphite element 40 during the deposition of the first and second metallic deposit. 51, 52.
  • This same first layer 42 has a resistance to acids adapted to offer protection of the second face of the graphite element 40 over a period at least equal to the duration of the deposition of the first and second metal deposits, that is, that is to say typically 5 to 6 hours.
  • the first layer 42 can be produced in the epoxy resin marketed by the company RS components® under the reference RS-196-5245® and the name in English “Tamper Evident Seal # 196-5245”.
  • the graphite element 40 may not have the first protective layer 42.
  • the first and second metal deposit 51, 52 are arranged so as to be interposed between the graphite element 40 and the core 10 and the base 21A respectively.
  • the first metal deposit 51 is interposed between the graphite element 40 and the core 10 and makes it possible to provide an electrical and mechanical connection between them.
  • the second metal deposit 52 is interposed between the graphite element 40 and the base 21A and makes it possible to provide an electrical and mechanical connection between them.
  • the first metal deposit 51 at least partially fills the space between the graphite element 40 and the core 10
  • the second metal deposit 52 at least partially fills the space between the graphite element 40 and the base 21A and covers part of the surface of the base 21A.
  • the part of the surface of the base 21A is a free part of the two peripheral screw passages.
  • the first and second metal deposits 51, 52, in this first embodiment, are both made in a metal which is preferably copper because of these conductive properties.
  • the graphite element 40 and the first and second metal deposits 51, 52 together form a shunt to provide a resistive bridge between the core and the shield.
  • the graphite element 40 by being disposed between the core 10 and the shielding 20, allows a significant portion of the current flowing through the core to be diverted to the shielding 20 and therefore to the ground plane to which the shield is connected.
  • shielding 20 (in particular by the base 21A which is generally referred to the chassis of the electrical device 5).
  • the first and second metal deposits 51, 52 are covered by the second protective layer 55.
  • the second layer 55 is a waterproof and airtight layer.
  • This second layer 55 can thus be made from a compound having properties of impermeability to water and impermeability to air based on polymers or elastomers.
  • the second layer 55 can be produced in the epoxy resin marketed by the company RS components® under the reference RS-159-3957® and the name in English “High strength epoxy resin”.
  • Such a coaxial connector 1 can therefore, as illustrated in figure 2 , be installed on an electrical device 5, such as a measuring device.
  • the coaxial connector 1 is introduced into an opening in the chassis of the electrical device 5 and aimed at the latter by means of the screw passages formed in the base 21A.
  • the core 10 is then fitted with a cable to connect it to a measuring circuit, not shown.
  • the frame of such an electrical device 5 forms, in a usual configuration, a ground plane.
  • the shielding 20 is itself connected to the ground of the electrical device 5.
  • a sub-step of cleaning / degreasing the connector can for example consist in soaking the connector in a phosphoric acid bath for a period of 5 min, rinsing it in water, and drying it.
  • the step of inserting the graphite element 40 by shearing between the base 21A and the core 10 can be carried out, as illustrated in the figures 5A and 5B , by means of a suitable tool 100.
  • This tool 100 comprises a substantially cylindrical body 110 comprising a cylindrical cavity 111 of revolution and a cylinder 120 of revolution made of deformable material to exert a homogeneous pressure force on the entire surface of the graphite element, said cylinder 120 being partly housed in the cylindrical cavity 111.
  • the body 110 is made of a material that is relatively rigid with respect to the cylinder 112, such as for example a thermoplastic elastomer, a metal or even wood.
  • the body 110 can thus be produced in polyvinyl chloride (better known under the sign PVC).
  • the body 110 is provided with the cylindrical cavity 111 which opens onto one of its faces.
  • the cylindrical cavity 111 is extended into the body 110 by a tube 112 making it possible to optionally accommodate a portion of the core 10 during the step of inserting the graphite element 40 by shearing.
  • the cylinder 120 has an outside diameter substantially equal to or slightly less than the inside diameter of the cylindrical cavity 111 of the body 101 so as to allow its installation in this latter cylindrical cavity 111.
  • This same diameter of the cylinder 120 is preferably equal to or greater than that of the graphite element 40 before its insertion by shearing and is strictly greater than or equal to the diameter of the central orifice of the base 21A.
  • the height of cylinder 120 is greater than the depth of the cylindrical cavity 111 this to allow the deformation of the cylinder 120 during the insertion of the graphite element 40.
  • the height / depth difference between the cylinder 120 and the cylindrical cavity 111 may thus be between 1 and 3 mm, and preferably between 1.25 and 2 mm, this difference typically being able to be 1.5 mm.
  • the cylinder 120 therefore protrudes from the body 110 by this height / depth difference.
  • the cylinder 120 is drilled in its center and along its axis of symmetry with a passage for the core 10 which is extended through the tube 112 thus ensuring that no stress is applied to the core 10 during insertion. by shearing the graphite element 40.
  • the cylinder 120 has a central part facing the central orifice of the base 21A, and therefore the dielectric 30, and a peripheral part facing the base 21A.
  • the base 21A being metallic, it has a relatively high rigidity vis-à-vis the cylinder 120, while the dielectric 30 and the cylinder have an equivalent rigidity.
  • the peripheral part will sag to compensate for the displacement of the body in the direction of the coaxial connector, while for the central part, the displacement is compensated by a sag distributed both on the cylinder and on the dielectric 30.
  • the result is a relative displacement, and therefore a shear, of the part of the graphite element 40 disposed on the dielectric 20 with respect to the part of the graphite element 40is located on the base 21A.
  • the graphite element 40 thus sheared and moved inside the central orifice of the base 21A is found inserted between the base 21A and the core 10 with an adjusted dimensioning.
  • the protective layer can be made of a dielectric material, resistant to acidic media for the duration of the electrolytic deposition. , and can be made from the same material as that of the first layer 42.
  • the third layer 56 can also be made from the epoxy resin marketed by the company RS components® under the reference RS-196-5245® and the name in English "Tamper Evident Seal # 196-5245".
  • the electrolytic deposition takes place initially between the core 10 and the graphite element 40 thus making it possible to fill the space between them and form the first metal deposit 51.
  • the electrolytic deposition takes place from the periphery of the graphite element 40 towards the base 21A.
  • the electrolytic deposition takes place in a second step between the graphite element 40 and the base 21A, making it possible to fill the space between them and to form the second metal deposit 52.
  • the copper deposition can be carried out at a constant current of 10 mA for a period ranging from 5 to 6 hours. With such a deposition condition, the voltage supplied by the current source 121 is between 0.3 and 0.4 V.
  • the neutralization step can be carried out by means of a bath in a 10% sodium hydroxide solution for a period ranging from 12 h to 72 h. It can be noted that with a duration of 72 hours, the step of removing the third layer 56 is not necessary. Indeed, such a bath is sufficient to completely remove the epoxy resin from the first and third layers 42 and 56 of protection. It will be noted that this removal of the third protective layer 56 thus makes it possible to free the screw passages of the base 21A and allows a good electrical connection between the shielding 20 of the coaxial connector 1 and the ground plane of the electrical device 5. Well Obviously, if the removal of the layer 56 is generally necessary, that of the first protective layer 42 has no effect on the operation of the coaxial connector 1.
  • the removal step can be done either chemically, that is to say by the use of an appropriate solvent, or physically, that is to say, an operation of scraping the third layer. It can be noted, whatever the chosen route, this operation is facilitated by the preliminary neutralization step which makes it possible to weaken the third layer 56.
  • the graphite element does not have the first protective layer 42
  • the figure 9 partially illustrates a coaxial cable 3 according to a second embodiment of the invention.
  • a coaxial cable 3 is equipped with a coaxial connector 2 of the male SMA type according to the first embodiment.
  • Such a coaxial connector 2 differs from the coaxial connector 1 according to the first embodiment by not the shape of the connection end piece 20 which is a male type connection end piece and by its installation at one end of the coaxial cable 3.
  • the coaxial connector 2 With such an installation of the coaxial connector 2 at the end of the coaxial cable 3, the coaxial connector 2 has a core 10 and a dielectric 30 which are common with the coaxial cable 3, and the connection tip 22 is electrically connected to the shield. 23 of the coaxial cable 3 which is itself coated with a dielectric coating 23.
  • connection end piece 22 comprises a first cylindrical portion 22A of hollow revolution, the inside diameter of which is substantially equal to the diameter of the dielectric 30 so as to accommodate a portion thereof.
  • the connection end piece 22 also comprises, in the extension of the first cylindrical portion 22A, a second cylindrical portion 22B of hollow revolution having an inside diameter greater than that of the first cylindrical portion 22A while being coaxial with it.
  • the first and the second cylindrical portion 22A, 22B are connected to each other by a shoulder.
  • the second cylindrical portion 22B has a thread on its inner surface, so as to allow the screwing of the cylindrical body of a complementary coaxial connector.
  • the coaxial connector 2 is shaped to cooperate with a complementary end piece, such as that illustrated in figure 1 , of another coaxial connector according to a cooperation of the male / female type.
  • the second cylindrical portion 22B is empty except for the core 10 which protrudes from the first cylindrical portion 22A.
  • the first cylindrical portion 22A houses, in addition to the dielectric 30 and the core 10, the graphite element 40 covered with the first protective layer 10. In this way, the graphite element 40 is positioned between the core 10 and the first cylindrical portion 22A.
  • the first and second metal deposit 51, 52 are positioned between the graphite element 40 and respectively the core 10 and the first cylindrical portion 22A.
  • the method of manufacturing a coaxial connector 2 according to this second embodiment differs from the method of manufacturing a coaxial connector 1 according to the first embodiment by the protection to be provided to the connector 2 during the step of forming the first and second metal deposit 51, 52 and an adaptation of the tool serving to insert by shear the graphite element which must have a shape complementary to the connection end piece 22.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
EP17711164.8A 2016-03-17 2017-03-16 Connecteur coaxial comprenant un shunt, assemblage et procédé de fabrication d'un tel connecteur Active EP3430691B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1652266A FR3049119B1 (fr) 2016-03-17 2016-03-17 Connecteur coaxial comprenant un shunt, cable coaxial et procede de fabrication d'un tel connecteur
PCT/EP2017/056278 WO2017158111A1 (fr) 2016-03-17 2017-03-16 Connecteur coaxial comprenant un shunt, câble coaxial et procédé de fabrication d'un tel connecteur

Publications (2)

Publication Number Publication Date
EP3430691A1 EP3430691A1 (fr) 2019-01-23
EP3430691B1 true EP3430691B1 (fr) 2020-11-25

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EP17711164.8A Active EP3430691B1 (fr) 2016-03-17 2017-03-16 Connecteur coaxial comprenant un shunt, assemblage et procédé de fabrication d'un tel connecteur

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US (1) US11108198B2 (es)
EP (1) EP3430691B1 (es)
ES (1) ES2851850T3 (es)
FR (1) FR3049119B1 (es)
WO (1) WO2017158111A1 (es)

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US20190081444A1 (en) 2019-03-14
FR3049119A1 (fr) 2017-09-22
EP3430691A1 (fr) 2019-01-23

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