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EP1858124A1 - Coaxial connector - Google Patents

Coaxial connector Download PDF

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Publication number
EP1858124A1
EP1858124A1 EP07300982A EP07300982A EP1858124A1 EP 1858124 A1 EP1858124 A1 EP 1858124A1 EP 07300982 A EP07300982 A EP 07300982A EP 07300982 A EP07300982 A EP 07300982A EP 1858124 A1 EP1858124 A1 EP 1858124A1
Authority
EP
European Patent Office
Prior art keywords
connector
contact element
unit
contact
central
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.)
Withdrawn
Application number
EP07300982A
Other languages
German (de)
French (fr)
Inventor
Olivier Gonzales
Fabien Bourgeas
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.)
Radiall SA
Original Assignee
Radiall 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 Radiall SA filed Critical Radiall SA
Publication of EP1858124A1 publication Critical patent/EP1858124A1/en
Withdrawn legal-status Critical Current

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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
    • 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
    • H01R24/46—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 switches
    • 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
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H01R13/2421—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using coil springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/02—Connectors or connections adapted for particular applications for antennas
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S439/00—Electrical connectors
    • Y10S439/944—Coaxial connector having circuit-interrupting provision effected by mating or having "dead" contact activated after mating

Definitions

  • the present invention particularly relates to a coaxial connector having two connector elements to be connected together.
  • the mechanical endurance of such a connector typically corresponds to approximately 500 insertion / insertion cycles. extraction.
  • the invention aims in particular to increase the mechanical endurance of a coaxial connector.
  • the first and second central contact elements are arranged so that, when the first and second connector elements are connected, these contact elements are supported against each other by their front ends.
  • the first connector element has a guide pin of the first contact element and the first contact element has a recess into which the pin engages. This pin is in particular fixed relative to the first body.
  • the guide pin has a longitudinal axis and the first contact element can tilt relative to the guide pin along this longitudinal axis.
  • the first central contact element and the elastic return member are arranged in such a way that the elastic return member exerts on the first contact element a non-collinear force to the longitudinal axis of the spindle, making it possible in particular to to tilt the contact element with respect to the pin.
  • the mechanical endurance of the connector can be substantially improved and allow more than 40,000 insertion / extraction cycles.
  • the contacting of the central contact elements can be performed without friction between them when connecting the two connector elements, which avoids wear and therefore the deterioration of metal-metal surfaces used to transmit the electrical signal.
  • the invention also makes it possible to limit the friction during disconnection of the connector elements.
  • the elastic return member may be for example a helical spring provided in particular with a portion of turn bearing on the first contact element and arranged to exert on it a non-collinear force to the longitudinal axis of the spindle guidance.
  • the first contact element may comprise a shoulder, in particular an annular shoulder on which the resilient return member is applied.
  • the shoulder may have a beveled shape for directing a portion of the biasing force in a direction perpendicular to the longitudinal axis of the guide pin.
  • At least one of the first central contact element and the guide pin may have a circular cross section or, alternatively, a non-circular cross section, for example polygonal.
  • the first connector element may comprise an insulating insert provided with an opening in which the first central contact element engages.
  • the first connector element may include a side contact element when a switching function is to be provided.
  • the central contact element when the first connector element is disconnected, being in an unswitched configuration, the central contact element may bear against the lateral contact element.
  • the electrical signal can then pass from the guide pin to the lateral contact element via the sliding contact element, these elements defining a coaxial line portion.
  • the elastic return member is advantageously pre-stressed in order to generate a sufficient force between the central and lateral contact elements and to reduce the electrical resistance at the interface of these contact elements.
  • the lateral contact element can be held with an insulating insert on the first body.
  • the insulating insert provided with an opening, into which the first central contact element engages, can be arranged to take up part of the force exerted by the elastic return member, which can make it possible to avoid a excessive pressure on the side contact element.
  • the second connector element comprises a shoe arranged to cooperate with the first connector element in order to immobilize the two connector elements at least axially with respect to each other when they are connected.
  • the invention can in particular make it possible to avoid the use of a split connection portion on one of the connector elements, such a connection portion resulting in relatively aggressive friction.
  • the second connector body may include a lateral housing for receiving the pad.
  • the second connector element may comprise for example a split ring to retain the pad in the housing.
  • the pad may have an inner cross section, perpendicular to this longitudinal axis, substantially in a circular arc, in particular in a semicircle.
  • the pad may, if necessary, be chamfered and / or radiated on its inner face.
  • the pad may have, if desired, a substantially crescent shape, with inner and outer cylindrical faces off-axis, which allows in particular to locate the interface pad / body of the base, on a reduced area and therefore facilitate its insertion.
  • the pad may be made of plastic material having a low coefficient of friction such as for example polytetrafluoroethylene, a polyamide or a polypropylene, this list not being limiting.
  • the first connector body comprises a connection portion, in particular a cylindrical portion, provided with a groove, in particular an annular groove, in which the shoe can engage at least partially when the two elements connector are connected, in particular to increase the retention force between the two connector elements.
  • the groove may have substantially a shape complementary to that of the inner face of the pad.
  • a base formed by the first connector element can be used in a wireless communication terminal to direct a radio frequency signal to an external output when the plug formed by the second connector element is inserted into the base.
  • FIGS. 1 and 2 respectively show first and second connector elements 1 and 2 of a coaxial connector 3 according to the invention.
  • the connector element 1 forms for example a base used in a wireless communication terminal.
  • the base 1 serves in particular to direct a radiofrequency signal to an external output when a coaxial plug formed by the connector element 2, is inserted into the base 1.
  • the connector 3 has a switching function.
  • the connector element 1 comprises a first body 5 of longitudinal axis X, made for example of copper alloy such as brass and comprising a substantially cylindrical connection portion 6.
  • the body 5 further comprises a cavity 7 in the extension of the connecting portion 6 and is arranged to receive a first central contact element 8.
  • This contact element 8 has, in the example considered, a substantially cylindrical shape with a circular cross section.
  • the contact element 8 may have a non-circular cross section, for example of polygonal shape.
  • This contact element 8 has a recess 4 for engaging on a guide pin 9 of X axis.
  • an insulating insert 10 which comprises a passage 11 for receiving a rear portion 12 of the pin 9.
  • the pin 9 and the contact element 8 are made for example of copper alloy such as brass.
  • Another insulating insert 13 is provided in the cavity 7 on a side opposite to that of the insulating insert 10.
  • the insert 13 has an opening 15 for the contact element 8.
  • the insulators 10 and 13 are made for example of PTFE.
  • the contact element 8 can slide on the pin 9 against the action of an elastic return member 16.
  • the elastic return member 16 is formed by a helical spring inserted around the guide pin 9.
  • the spring 16 is applied at one end against a shoulder 17 of the contact element 8.
  • the contact element 8 is closed at its front end 19 opposite the shoulder 17.
  • the contact element 8 can be open at its front end 19.
  • the shoulder 17 may extend substantially perpendicularly to the longitudinal axis X of the pin 9, as illustrated in FIGS. 3 and 4.
  • the contact element 8 may have a shoulder 17 'having a beveled shape for directing a portion of the biasing force in a direction perpendicular to the axis X.
  • the dimensions and / or the shape of the contact element 8 and the pin 9 are chosen so that the contact element 8 can tilt at an angle with respect to the longitudinal axis X of the pin 9.
  • the connector element 1 also comprises a lateral contact element 20 extending perpendicular to the axis X and integral with an insulating insert 21 housed in an opening 22 of the body 5.
  • the prestressed resilient biasing member 16 exerts on the contact element 8 a force sufficient to allow satisfactory contact between this contact element 8 and the lateral contact element 20.
  • the connecting portion 6 has an annular groove 25 whose role will be specified later.
  • the second connector element 2 comprises a body 30 made for example of copper alloy such as brass, provided with a substantially cylindrical connecting portion 31.
  • This portion 31 comprises a lateral housing 32 having a cross section substantially in a semicircle, and arranged to receive a shoe 33 made for example of plastic material having a low coefficient of friction such as for example polytetrafluoroethylene, a polyamide, a polypropylene, this list is not limiting.
  • the shoe 33 has outer 34 and inner 35 faces, this face 35 projecting inside the cylindrical connection portion 31 when the shoe 33 is received in the housing 32.
  • the outer face 34 has a substantially semi-cylindrical shape.
  • the inner face 35 has a substantially semicircular cross section and comprises chamfers 36.
  • the shoe 33 is applied by its end faces 37 to supports 38 formed on the connecting portion 31.
  • the shoe 33 is held in the housing 32 by means of a split ring 40 made for example of a material having a high yield strength such as stainless steel, inserted by slight elastic deformation around the connecting portion 31 and the shoe 33, as can be seen in Figure 6.
  • a split ring 40 made for example of a material having a high yield strength such as stainless steel, inserted by slight elastic deformation around the connecting portion 31 and the shoe 33, as can be seen in Figure 6.
  • the second connector element 2 further comprises a central contact element 41 held in the connection portion 31 by means of an insulating insert 42.
  • the central contact element 41 has a front end 43 formed in the example in question by a substantially flat face.
  • connection of the connector elements 1 and 2, to form the connector 3, is carried out as follows.
  • the connecting portion 6 of the connector element 1 is introduced into the connecting portion 31 of the connector element 2 in order to engage the shoe 33 in the annular groove 25 of the connecting portion 6, which allows secure the two connector elements 1 and 2.
  • This support causes the sliding and possibly tilting of the contact element 8 relative to the guide pin 9 against the action of the spring 16.
  • the recoil of the contact element 8 removes the shoulder 17 from the lateral contact element 20, which causes the switching of the connector element 1.
  • the insulating insert 13 serving in particular to guide the movable contact element 8, allows a recovery of force exerted by the spring 16, which can prevent excessive rotation of the lateral contact element 20.
  • the disconnection of the connector elements 1 and 2 is also achieved with a very low friction between them.
  • Maintaining the pad 33 on the connecting portion 31 may be made in any other manner, for example by means of an adhesive or by welding.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

A coaxial connector comprises two connector units (1, 2). The first connector unit forms a socket. The first connector unit has a first body (5), a resilient return unit, and a first central contact unit (8). The first central contact unit has first front end. The contact unit is movable against action of resilient return unit in sliding relative to first body. The second connector unit forms plug. The second connector unit is arranged to be capable of being releasably connected to first connector unit. The second connector comprises second body and second central contact unit. A coaxial connector comprises two connector units. The first connector unit forms a socket. The first connector unit has a first body, a resilient return unit, and a first central contact unit. The first central contact unit has first front end. The contact unit is movable against the action of a resilient return unit in sliding relative to the first body. The second connector unit forms a plug. The second connector unit is arranged to be capable of being releasably connected to the first connector unit. The second connector comprises second body and a second central contact unit. The second central contact unit has second front end. The two central contact units are arranged in such a manner that when the two connector units are connected together. The contact units bear one against the other via their front ends. The first connector unit includes a guide pin for guiding the first contact unit. The first contact unit includes a recess in which the pin engages. The first contact unit and the resilient return unit are arranged in such a manner that the resilient return unit exerts on the first contact unit a force that is not collinear with the longitudinal axis of the guide pin, making it possible in particular to tilt the contact unit relative to the pin. The resilient return unit comprises a helical spring. The first contact unit includes a shoulder. The first contact units and the guide pin present a cross-section that is circular. The first connector unit includes an insulating insert provided with an opening in which the first central contact unit engages.

Description

La présente invention a notamment pour objet un connecteur coaxial comportant deux éléments de connecteur à connecter ensemble.The present invention particularly relates to a coaxial connector having two connector elements to be connected together.

L'endurance mécanique d'un tel connecteur, limitée par l'usure engendrée à l'interface des éléments de connecteur notamment au niveau des éléments de contact centraux lors d'opérations d'insertion/extraction, correspond typiquement à environ 500 cycles insertion/extraction.The mechanical endurance of such a connector, limited by the wear generated at the interface of the connector elements in particular at the level of the central contact elements during insertion / extraction operations, typically corresponds to approximately 500 insertion / insertion cycles. extraction.

Il est connu d'améliorer l'endurance mécanique d'un tel connecteur en rendant moins agressif le contact entre les éléments de connecteur, par exemple grâce à une réduction de la pression exercée sur différentes parties des éléments de connecteur et en atténuant les aspérités de surfaces de contact, par exemple par lissage de certains angles.It is known to improve the mechanical endurance of such a connector by making the contact between the connector elements less aggressive, for example by reducing the pressure exerted on different parts of the connector elements and by attenuating the asperities of the connector elements. contact surfaces, for example by smoothing certain angles.

Il est également connu d'utiliser des traitements de surface rendant les composants plus endurants vis-à-vis de l'usure.It is also known to use surface treatments making the components more enduring with respect to wear.

Toutefois, ces techniques présentent une efficacité limitée et l'endurance mécanique ne dépasse généralement pas 5000 cycles insertion/extraction.However, these techniques have limited effectiveness and the mechanical endurance generally does not exceed 5000 insertion / extraction cycles.

L'invention vise notamment à accroître l'endurance mécanique d'un connecteur coaxial.The invention aims in particular to increase the mechanical endurance of a coaxial connector.

L'invention a ainsi pour objet un connecteur coaxial comportant :

  • un premier élément de connecteur, formant notamment une embase, comportant un premier corps, un organe de rappel élastique et un premier élément de contact central ayant une première extrémité frontale, cet élément de contact étant mobile, au moins par coulissement par rapport au premier corps, contre l'action de l'organe de rappel élastique,
  • un deuxième élément de connecteur, formant notamment une fiche, agencé pour pouvoir être connecté de manière amovible au premier élément de connecteur, et comportant un deuxième corps et un deuxième élément de contact central ayant une deuxième extrémité frontale.
The invention thus relates to a coaxial connector comprising:
  • a first connector element, in particular forming a base, comprising a first body, an elastic return member and a first central contact element having a first end end, this contact element being movable, at least by sliding relative to the first body; against the action of the elastic return member,
  • a second connector element, in particular forming a plug, arranged to be removably connected to the first connector element, and having a second body and a second central contact element having a second end.

Les premier et deuxième éléments de contact centraux sont agencés de manière à ce que, lorsque les premier et deuxième éléments de connecteur sont connectés, ces éléments de contact sont en appui l'un contre l'autre par leurs extrémités frontales.The first and second central contact elements are arranged so that, when the first and second connector elements are connected, these contact elements are supported against each other by their front ends.

Le premier élément de connecteur comporte une broche de guidage du premier élément de contact et le premier élément de contact comporte un évidement dans lequel s'engage la broche. Cette broche est notamment fixe par rapport au premier corps.The first connector element has a guide pin of the first contact element and the first contact element has a recess into which the pin engages. This pin is in particular fixed relative to the first body.

La broche de guidage présente un axe longitudinal et le premier élément de contact peut basculer par rapport à la broche de guidage suivant cet axe longitudinal.The guide pin has a longitudinal axis and the first contact element can tilt relative to the guide pin along this longitudinal axis.

Le premier élément de contact central et l'organe de rappel élastique sont agencés de manière à ce que l'organe de rappel élastique exerce sur le premier élément de contact un effort non-colinéaire à l'axe longitudinal de la broche, permettant notamment de faire basculer l'élément de contact par rapport à la broche.The first central contact element and the elastic return member are arranged in such a way that the elastic return member exerts on the first contact element a non-collinear force to the longitudinal axis of the spindle, making it possible in particular to to tilt the contact element with respect to the pin.

Ceci permet d'assurer un contact électrique satisfaisant entre les éléments de connecteur.This ensures satisfactory electrical contact between the connector elements.

Grâce à l'invention, l'endurance mécanique du connecteur peut être améliorée substantiellement et permettre plus de 40 000 cycles insertion/extraction.Thanks to the invention, the mechanical endurance of the connector can be substantially improved and allow more than 40,000 insertion / extraction cycles.

En effet, la mise en contact des éléments de contact centraux peut être réalisée sans frottement entre eux lors de la connexion des deux éléments de connecteur, ce qui permet d'éviter l'usure et donc la détérioration de surfaces métal-métal servant à transmettre le signal électrique.Indeed, the contacting of the central contact elements can be performed without friction between them when connecting the two connector elements, which avoids wear and therefore the deterioration of metal-metal surfaces used to transmit the electrical signal.

L'invention permet également de limiter les frottements lors d'une déconnexion des éléments de connecteur.The invention also makes it possible to limit the friction during disconnection of the connector elements.

L'organe de rappel élastique peut être par exemple un ressort hélicoïdal pourvu notamment d'une portion de spire en appui sur le premier élément de contact et agencée pour exercer sur celui-ci un effort non-colinéaire à l'axe longitudinal de la broche de guidage.The elastic return member may be for example a helical spring provided in particular with a portion of turn bearing on the first contact element and arranged to exert on it a non-collinear force to the longitudinal axis of the spindle guidance.

Le premier élément de contact peut comporter un épaulement, notamment annulaire, sur lequel s'applique l'organe de rappel élastique.The first contact element may comprise a shoulder, in particular an annular shoulder on which the resilient return member is applied.

L'épaulement peut présenter une forme biseautée servant à diriger une partie de l'effort de rappel dans une direction perpendiculaire à l'axe longitudinal de la broche de guidage.The shoulder may have a beveled shape for directing a portion of the biasing force in a direction perpendicular to the longitudinal axis of the guide pin.

L'un au moins du premier élément de contact central et de la broche de guidage peut présenter une section transversale circulaire ou, en variante, une section transversale non-circulaire, par exemple polygonale.At least one of the first central contact element and the guide pin may have a circular cross section or, alternatively, a non-circular cross section, for example polygonal.

Le premier élément de connecteur peut comporter un insert isolant pourvu d'une ouverture dans laquelle s'engage le premier élément de contact central.The first connector element may comprise an insulating insert provided with an opening in which the first central contact element engages.

Le premier élément de connecteur peut comporter un élément de contact latéral lorsqu'une fonction de commutation doit être assurée.The first connector element may include a side contact element when a switching function is to be provided.

Dans un exemple de mise en oeuvre de l'invention, lorsque le premier élément de connecteur est déconnecté, étant dans une configuration non-commutée, l'élément de contact central peut être en appui contre l'élément de contact latéral. Le signal électrique peut alors passer de la broche de guidage vers l'élément de contact latéral via l'élément de contact coulissant, ces éléments définissant une portion de ligne coaxiale.In an exemplary implementation of the invention, when the first connector element is disconnected, being in an unswitched configuration, the central contact element may bear against the lateral contact element. The electrical signal can then pass from the guide pin to the lateral contact element via the sliding contact element, these elements defining a coaxial line portion.

L'organe de rappel élastique est avantageusement pré-contraint afin de générer un effort suffisant entre les éléments de contact central et latéral et réduire la résistance électrique à l'interface de ces éléments de contact.The elastic return member is advantageously pre-stressed in order to generate a sufficient force between the central and lateral contact elements and to reduce the electrical resistance at the interface of these contact elements.

L'élément de contact latéral peut être maintenu à l'aide d'un insert isolant sur le premier corps.The lateral contact element can be held with an insulating insert on the first body.

L'insert isolant pourvu d'une ouverture, dans laquelle s'engage le premier élément de contact central, peut être agencé pour reprendre une partie de l'effort exercé par l'organe de rappel élastique, ce qui peut permettre d'éviter une pression excessive sur l'élément de contact latéral.The insulating insert provided with an opening, into which the first central contact element engages, can be arranged to take up part of the force exerted by the elastic return member, which can make it possible to avoid a excessive pressure on the side contact element.

Selon un autre aspect de l'invention, le deuxième élément de connecteur comporte un patin agencé pour coopérer avec le premier élément de connecteur afin d'immobiliser au moins axialement les deux éléments de connecteur l'un par rapport à l'autre lorsqu'ils sont connectés.According to another aspect of the invention, the second connector element comprises a shoe arranged to cooperate with the first connector element in order to immobilize the two connector elements at least axially with respect to each other when they are connected.

Le maintien des deux éléments de connecteur grâce au patin permet de réduire l'usure lors de cycles insertion/extraction.Maintaining the two connector elements with the pad reduces wear during insertion / extraction cycles.

L'invention peut notamment permettre d'éviter l'utilisation d'une portion de connexion fendue sur l'un des éléments de connecteur, une telle portion de connexion entraînant des frottements relativement agressifs.The invention can in particular make it possible to avoid the use of a split connection portion on one of the connector elements, such a connection portion resulting in relatively aggressive friction.

Le deuxième corps de connecteur peut comporter un logement latéral pour recevoir le patin.The second connector body may include a lateral housing for receiving the pad.

Le deuxième élément de connecteur peut comporter par exemple une bague fendue pour retenir le patin dans le logement.The second connector element may comprise for example a split ring to retain the pad in the housing.

Lorsque le deuxième corps de connecteur présente un axe longitudinal, le patin peut présenter une section transversale intérieure, perpendiculaire à cet axe longitudinal, sensiblement en arc de cercle, notamment en demi-cercle.When the second connector body has a longitudinal axis, the pad may have an inner cross section, perpendicular to this longitudinal axis, substantially in a circular arc, in particular in a semicircle.

Le patin peut, le cas échéant, être chanfreiné et/ou rayonné sur sa face intérieure.The pad may, if necessary, be chamfered and / or radiated on its inner face.

Le patin peut présenter, si on le souhaite, une forme sensiblement en croissant, avec des faces cylindriques intérieure et extérieure désaxées, ce qui permet notamment de localiser l'interface patin/corps de l'embase, sur une zone réduite et donc faciliter son insertion.The pad may have, if desired, a substantially crescent shape, with inner and outer cylindrical faces off-axis, which allows in particular to locate the interface pad / body of the base, on a reduced area and therefore facilitate its insertion.

Le patin peut être réalisé en matériau plastique ayant un faible coefficient de frottement tel que par exemple le polytetrafluoroéthylène, un polyamide ou un polypropylène, cette liste n'étant pas limitative.The pad may be made of plastic material having a low coefficient of friction such as for example polytetrafluoroethylene, a polyamide or a polypropylene, this list not being limiting.

Dans un exemple de mise en oeuvre de l'invention, le premier corps de connecteur comporte une portion de connexion, notamment cylindrique, pourvue d'une gorge, notamment annulaire, dans laquelle le patin peut s'engager au moins partiellement lorsque les deux éléments de connecteur sont connectés, en vue notamment d'augmenter l'effort de rétention entre les deux éléments de connecteur.In an exemplary implementation of the invention, the first connector body comprises a connection portion, in particular a cylindrical portion, provided with a groove, in particular an annular groove, in which the shoe can engage at least partially when the two elements connector are connected, in particular to increase the retention force between the two connector elements.

La gorge peut présenter sensiblement une forme complémentaire de celle de la face intérieure du patin.The groove may have substantially a shape complementary to that of the inner face of the pad.

Une embase formée par le premier élément de connecteur peut être utilisée dans un terminal de communication sans fil en vue de diriger un signal radiofréquence vers une sortie externe lorsque la fiche formée par le deuxième élément de connecteur est insérée dans l'embase.A base formed by the first connector element can be used in a wireless communication terminal to direct a radio frequency signal to an external output when the plug formed by the second connector element is inserted into the base.

L'invention a encore pour objet un élément de connecteur de type coaxial, notamment d'un connecteur tel que défini ci-dessus, comportant :

  • un corps,
  • un organe de rappel élastique,
  • un élément de contact central ayant une extrémité frontale, cet élément de contact étant mobile, au moins par coulissement, par rapport au corps contre l'action de l'organe de rappel élastique,
  • une broche de guidage de l'élément de contact, lequel comporte un évidement dans lequel s'engage la broche.
The invention also relates to a coaxial type connector element, in particular a connector as defined above, comprising:
  • a body,
  • an elastic return member,
  • a central contact element having a front end, said contact element being movable, at least by sliding, relative to the body against the action of the elastic return member,
  • a guide pin of the contact element, which comprises a recess in which the pin engages.

L'invention a encore pour objet un élément de connecteur de type coaxial, notamment d'un connecteur tel que défini ci-dessus, comportant :

  • un corps,
  • un élément de contact central,
  • un patin disposé dans un logement latéral du corps.
The invention also relates to a coaxial type connector element, in particular a connector as defined above, comprising:
  • a body,
  • a central contact element,
  • a shoe disposed in a lateral housing of the body.

L'invention pourra être mieux comprise à la lecture de la description détaillée qui va suivre, d'exemples de mise en oeuvre non limitatifs de l'invention, et à l'examen du dessin annexé, sur lequel :

  • la figure 1 représente, schématiquement et partiellement, en coupe longitudinale, un premier élément de connecteur conforme à l'invention,
  • la figure 2 représente, schématiquement et partiellement, en perspective, différents éléments d'un deuxième élément de connecteur conforme à l'invention,
  • les figures 3 à 5 illustrent, schématiquement et partiellement, différents exemples d'un élément de contact du premier élément de connecteur de la figure 1, et
  • la figure 6 représente, schématiquement et partiellement, un connecteur formé par les premier et deuxième éléments de connecteur des figures 1 et 2.
The invention can be better understood on reading the following detailed description, non-limiting examples of implementation of the invention, and on examining the appended drawing, in which:
  • FIG. 1 represents, schematically and partially, in longitudinal section, a first connector element according to the invention,
  • FIG. 2 represents, schematically and partially, in perspective, various elements of a second connector element according to the invention,
  • FIGS. 3 to 5 illustrate, schematically and partially, various examples of a contact element of the first connector element of FIG. 1, and
  • FIG. 6 represents, schematically and partially, a connector formed by the first and second connector elements of FIGS. 1 and 2.

On a représenté sur les figures 1 et 2 respectivement des premier et deuxième éléments de connecteur 1 et 2 d'un connecteur coaxial 3 conforme à l'invention.FIGS. 1 and 2 respectively show first and second connector elements 1 and 2 of a coaxial connector 3 according to the invention.

L'élément de connecteur 1 forme par exemple une embase utilisée dans un terminal de communication sans fil.The connector element 1 forms for example a base used in a wireless communication terminal.

L'embase 1 sert notamment à diriger un signal radiofréquence vers une sortie externe lorsqu'une fiche coaxiale formée par l'élément de connecteur 2, est insérée dans l'embase 1.The base 1 serves in particular to direct a radiofrequency signal to an external output when a coaxial plug formed by the connector element 2, is inserted into the base 1.

Dans l'exemple décrit, le connecteur 3 est à fonction de commutation.In the example described, the connector 3 has a switching function.

L'élément de connecteur 1 comporte un premier corps 5 d'axe longitudinal X, réalisé par exemple en alliage de cuivre tel que le laiton et comprenant une portion de connexion 6 sensiblement cylindrique.The connector element 1 comprises a first body 5 of longitudinal axis X, made for example of copper alloy such as brass and comprising a substantially cylindrical connection portion 6.

Le corps 5 comprend en outre une cavité 7 dans le prolongement de la portion de connexion 6 et est agencé pour recevoir un premier élément de contact central 8.The body 5 further comprises a cavity 7 in the extension of the connecting portion 6 and is arranged to receive a first central contact element 8.

Cet élément de contact 8 présente, dans l'exemple considéré, une forme sensiblement cylindrique avec une section transversale circulaire.This contact element 8 has, in the example considered, a substantially cylindrical shape with a circular cross section.

En variante, l'élément de contact 8 peut présenter une section transversale non-circulaire, par exemple de forme polygonale.Alternatively, the contact element 8 may have a non-circular cross section, for example of polygonal shape.

Cet élément de contact 8 présente un évidement 4 permettant de l'engager sur une broche de guidage 9 d'axe X.This contact element 8 has a recess 4 for engaging on a guide pin 9 of X axis.

Celle-ci est maintenue dans la cavité 7 à l'aide d'un insert isolant 10, lequel comporte un passage 11 pour recevoir une portion arrière 12 de la broche 9.This is maintained in the cavity 7 by means of an insulating insert 10, which comprises a passage 11 for receiving a rear portion 12 of the pin 9.

La broche 9 et l'élément de contact 8 sont réalisés par exemple en alliage de cuivre tel que le laiton.The pin 9 and the contact element 8 are made for example of copper alloy such as brass.

Un autre insert isolant 13 est prévu dans la cavité 7 sur un côté opposé à celui de l'insert isolant 10. L'insert 13 présente une ouverture 15 pour l'élément de contact 8.Another insulating insert 13 is provided in the cavity 7 on a side opposite to that of the insulating insert 10. The insert 13 has an opening 15 for the contact element 8.

Les isolants 10 et 13 sont réalisés par exemple en PTFE.The insulators 10 and 13 are made for example of PTFE.

L'élément de contact 8 peut coulisser sur la broche 9 contre l'action d'un organe de rappel élastique 16.The contact element 8 can slide on the pin 9 against the action of an elastic return member 16.

Dans l'exemple décrit, l'organe de rappel élastique 16 est formé par un ressort hélicoïdal inséré autour de la broche de guidage 9.In the example described, the elastic return member 16 is formed by a helical spring inserted around the guide pin 9.

Le ressort 16 s'applique à une extrémité contre un épaulement 17 de l'élément de contact 8.The spring 16 is applied at one end against a shoulder 17 of the contact element 8.

Dans l'exemple illustré aux figures 1 et 3, l'élément de contact 8 est fermé à son extrémité frontale 19 opposée à l'épaulement 17.In the example illustrated in FIGS. 1 and 3, the contact element 8 is closed at its front end 19 opposite the shoulder 17.

En variante, comme illustré sur la figure 4, l'élément de contact 8 peut être ouvert à son extrémité frontale 19.In a variant, as illustrated in FIG. 4, the contact element 8 can be open at its front end 19.

L'épaulement 17 peut s'étendre sensiblement perpendiculairement à l'axe longitudinal X de la broche 9, comme illustré sur les figures 3 et 4.The shoulder 17 may extend substantially perpendicularly to the longitudinal axis X of the pin 9, as illustrated in FIGS. 3 and 4.

En variante, comme illustré sur la figure 5, l'élément de contact 8 peut présenter un épaulement 17' présentant une forme biseautée servant à diriger une partie de l'effort de rappel dans une direction perpendiculaire à l'axe X.Alternatively, as illustrated in Figure 5, the contact element 8 may have a shoulder 17 'having a beveled shape for directing a portion of the biasing force in a direction perpendicular to the axis X.

Les dimensions et/ou la forme de l'élément de contact 8 et de la broche 9 sont choisies de manière à ce que l'élément de contact 8 puisse basculer d'un certain angle par rapport à l'axe longitudinal X de la broche 9.The dimensions and / or the shape of the contact element 8 and the pin 9 are chosen so that the contact element 8 can tilt at an angle with respect to the longitudinal axis X of the pin 9.

L'élément de connecteur 1 comporte également un élément de contact latéral 20 s'étendant perpendiculairement à l'axe X et solidaire d'un insert isolant 21 logé dans une ouverture 22 du corps 5.The connector element 1 also comprises a lateral contact element 20 extending perpendicular to the axis X and integral with an insulating insert 21 housed in an opening 22 of the body 5.

Lorsque l'élément de connecteur 1 est déconnecté, dans une configuration non-commutée, comme illustré sur la figure 1, l'élément de contact 8 vient en appui contre l'élément de contact latéral 20 par son épaulement 17.When the connector element 1 is disconnected, in an unswitched configuration, as illustrated in FIG. 1, the contact element 8 bears against the lateral contact element 20 by its shoulder 17.

L'organe de rappel élastique 16 précontraint exerce sur l'élément de contact 8 un effort suffisant pour permettre un contact satisfaisant entre cet élément de contact 8 et l'élément de contact latéral 20.The prestressed resilient biasing member 16 exerts on the contact element 8 a force sufficient to allow satisfactory contact between this contact element 8 and the lateral contact element 20.

La portion de connexion 6 comporte une gorge annulaire 25 dont le rôle sera précisé plus loin.The connecting portion 6 has an annular groove 25 whose role will be specified later.

Comme illustré sur la figure 2, le deuxième élément de connecteur 2 comporte un corps 30 réalisé par exemple en alliage de cuivre tel que le laiton, pourvu d'une portion de connexion 31 sensiblement cylindrique.As illustrated in Figure 2, the second connector element 2 comprises a body 30 made for example of copper alloy such as brass, provided with a substantially cylindrical connecting portion 31.

Cette portion 31 comprend un logement latéral 32 présentant une section transversale sensiblement en demi-cercle, et agencé pour recevoir un patin 33 réalisé par exemple en matériau plastique ayant un faible coefficient de frottement tel que par exemple le polytétrafluoroéthylène, un polyamide, un polypropylène, cette liste n'étant pas limitative.This portion 31 comprises a lateral housing 32 having a cross section substantially in a semicircle, and arranged to receive a shoe 33 made for example of plastic material having a low coefficient of friction such as for example polytetrafluoroethylene, a polyamide, a polypropylene, this list is not limiting.

Le patin 33 comporte des faces extérieure 34 et intérieure 35, cette face 35 faisant saillie à l'intérieur de la portion de connexion cylindrique 31 lorsque le patin 33 est reçu dans le logement 32.The shoe 33 has outer 34 and inner 35 faces, this face 35 projecting inside the cylindrical connection portion 31 when the shoe 33 is received in the housing 32.

La face extérieure 34 présente une forme sensiblement demi-cylindrique.The outer face 34 has a substantially semi-cylindrical shape.

La face intérieure 35 présente une section transversale sensiblement demi-circulaire et comprend des chanfreins 36.The inner face 35 has a substantially semicircular cross section and comprises chamfers 36.

Le patin 33 s'applique par ses faces d'extrémité 37 sur des appuis 38 formés sur la portion de connexion 31.The shoe 33 is applied by its end faces 37 to supports 38 formed on the connecting portion 31.

Le patin 33 est maintenu dans le logement 32 à l'aide d'une bague fendue 40 réalisée par exemple en un matériau ayant une limite d'élasticité élevée tel qu'un acier inoxydable, insérée par légère déformation élastique autour de la portion de connexion 31 et du patin 33, comme on peut le voir sur la figure 6.The shoe 33 is held in the housing 32 by means of a split ring 40 made for example of a material having a high yield strength such as stainless steel, inserted by slight elastic deformation around the connecting portion 31 and the shoe 33, as can be seen in Figure 6.

Le deuxième élément de connecteur 2 comporte en outre un élément de contact central 41 maintenu dans la portion de connexion 31 à l'aide d'un insert isolant 42.The second connector element 2 further comprises a central contact element 41 held in the connection portion 31 by means of an insulating insert 42.

L'élément de contact central 41 présente une extrémité frontale 43 formée, dans l'exemple considéré, par une face sensiblement plane.The central contact element 41 has a front end 43 formed in the example in question by a substantially flat face.

La connexion des éléments de connecteur 1 et 2, pour former le connecteur 3, s'effectue de la manière suivante.The connection of the connector elements 1 and 2, to form the connector 3, is carried out as follows.

La portion de connexion 6 de l'élément de connecteur 1 est introduite dans la portion de connexion 31 de l'élément de connecteur 2 afin d'engager le patin 33 dans la gorge annulaire 25 de la portion de connexion 6, ce qui permet de solidariser les deux éléments de connecteur 1 et 2.The connecting portion 6 of the connector element 1 is introduced into the connecting portion 31 of the connector element 2 in order to engage the shoe 33 in the annular groove 25 of the connecting portion 6, which allows secure the two connector elements 1 and 2.

Lors de la connexion, les éléments de contact centraux 8 et 41 viennent en appui l'un contre l'autre par leur extrémité frontale respective 19 et 43, comme illustré sur la figure 6.During the connection, the central contact elements 8 and 41 bear against each other by their respective front end 19 and 43, as illustrated in FIG. 6.

Cet appui entraîne le coulissement et éventuellement le basculement de l'élément de contact 8 par rapport à la broche de guidage 9 contre l'action du ressort 16.This support causes the sliding and possibly tilting of the contact element 8 relative to the guide pin 9 against the action of the spring 16.

Le recul de l'élément de contact 8 éloigne l'épaulement 17 de l'élément de contact latéral 20, ce qui entraîne la commutation de l'élément de connecteur 1.The recoil of the contact element 8 removes the shoulder 17 from the lateral contact element 20, which causes the switching of the connector element 1.

L'insert isolant 13 servant notamment au guidage de l'élément de contact mobile 8, permet une reprise d'effort exercé par le ressort 16, ce qui peut permettre d'éviter une rotation excessive de l'élément de contact latéral 20.The insulating insert 13 serving in particular to guide the movable contact element 8, allows a recovery of force exerted by the spring 16, which can prevent excessive rotation of the lateral contact element 20.

Ceci peut assurer un contact fiable entre l'élément de contact 8 et l'élément de contact latéral 20, même lorsque l'insert isolant 21 a subi un vieillissement.This can ensure reliable contact between the contact element 8 and the lateral contact element 20, even when the insulating insert 21 has been aged.

La déconnexion des éléments de connecteur 1 et 2 est réalisée également avec un frottement très faible entre ceux-ci.The disconnection of the connector elements 1 and 2 is also achieved with a very low friction between them.

Bien entendu, l'invention n'est pas limitée aux exemples de mise en oeuvre qui viennent d'être décrits.Of course, the invention is not limited to the implementation examples which have just been described.

Le maintien du patin 33 sur la portion de connexion 31 peut être réalisé de toute autre manière, par exemple à l'aide d'un adhésif ou par soudage.Maintaining the pad 33 on the connecting portion 31 may be made in any other manner, for example by means of an adhesive or by welding.

Claims (13)

Connecteur coaxial (3) comportant : - un premier élément de connecteur (1), formant notamment une embase, comportant un premier corps (5), un organe de rappel élastique (16) et un premier élément de contact central (8) ayant une première extrémité frontale (19), cet élément de contact étant mobile, au moins par coulissement par rapport au premier corps, contre l'action de l'organe de rappel élastique, - un deuxième élément de connecteur (2), formant notamment une fiche, agencé pour pouvoir être connecté de manière amovible au premier élément de connecteur, et comportant un deuxième corps (31) et un deuxième élément de contact central (41) ayant une deuxième extrémité frontale (43),
les premier et deuxième éléments de contact centraux (8 ; 41) étant agencés de manière à ce que, lorsque les premier et deuxième éléments de connecteur sont connectés, les éléments de contact sont en appui l'un contre l'autre par leurs extrémités frontales (19 ; 43), caractérisé par le fait que le premier élément de connecteur comporte une broche de guidage (9) du premier élément de contact, que le premier élément de contact (8) comporte un évidement (4) dans lequel s'engage la broche, et que le premier élément de contact et l'organe de rappel élastique (16) sont agencés de manière à ce que l'organe de rappel élastique exerce sur le premier élément de contact (8) un effort non-colinéaire à l'axe longitudinal (X) de la broche de guidage (9), permettant notamment de faire basculer l'élément de contact par rapport à ladite broche. Coaxial connector (3) comprising: a first connector element (1), in particular forming a base, comprising a first body (5), an elastic return member (16) and a first central contact element (8) having a first end end (19), this contact element being movable, at least by sliding relative to the first body, against the action of the elastic return member, a second connector element (2), notably forming a plug, arranged to be removably connected to the first connector element, and comprising a second body (31) and a second central contact element (41) having a second front end (43),
the first and second central contact elements (8; 41) being arranged so that, when the first and second connector elements are connected, the contact elements are supported against each other by their front ends (19; 43), characterized in that the first connector element comprises a guide pin (9) of the first contact element, that the first contact element (8) has a recess (4) in which the pin, and that the first contact element and the elastic return member (16) are arranged so that the elastic return member exerts on the first contact element (8) a non-collinear force to the longitudinal axis (X) of the guide pin (9), in particular for tilting the contact element relative to said pin. Connecteur selon la revendication 1, caractérisé par le fait que l'organe de rappel élastique comporte un ressort hélicoïdal (16) pourvu d'une portion de spire en appui sur le premier élément de contact et agencée pour exercer sur celui-ci un effort non-colinéaire à l'axe longitudinal de la broche de guidage.Connector according to claim 1, characterized in that the elastic return member comprises a helical spring (16) provided with a portion of turn bearing on the first contact element and arranged to exert on it a non-stress -colinear to the longitudinal axis of the guide pin. Connecteur selon l'une des revendications 1 et 2, caractérisé par le fait que le premier élément de contact (8) comporte un épaulement (17), notamment annulaire, sur lequel s'applique l'organe de rappel élastique (16).Connector according to one of claims 1 and 2, characterized in that the first contact element (8) comprises a shoulder (17), in particular annular, on which the resilient return member (16). Connecteur selon l'une quelconque des revendications 1 à 3, caractérisé par le fait que l'un au moins du premier élément de contact (8) et de la broche de guidage (9) présente une section transversale circulaire.Connector according to one of Claims 1 to 3, characterized in that at least one of the first contact element (8) and the guide pin (9) has a circular cross-section. Connecteur selon l'une quelconque des revendications précédentes, caractérisé par le fait que le premier élément de connecteur (1) comporte un insert isolant (13) pourvu d'une ouverture (15) dans laquelle s'engage le premier élément de contact central (8).Connector according to any one of the preceding claims, characterized in that the first connector element (1) comprises an insulating insert (13) provided with an opening (15) in which the first central contact element engages ( 8). Connecteur selon l'une quelconque des revendications précédentes, caractérisé par le fait que le premier élément de connecteur (8) comporte un élément de contact latéral (20) et par le fait que, lorsque le premier élément de connecteur est déconnecté, l'élément de contact central (8) est en appui contre l'élément de contact latéral (20).Connector according to any one of the preceding claims, characterized in that the first connector element (8) comprises a lateral contact element (20) and in that , when the first connector element is disconnected, the element central contact (8) bears against the lateral contact element (20). Connecteur selon l'une quelconque des revendications précédentes, caractérisé par le fait que le deuxième élément de connecteur (2) comporte un patin (33) agencé pour coopérer avec le premier élément de connecteur afin d'immobiliser au moins axialement les deux éléments de connecteur l'un par rapport à l'autre lorsqu'ils sont connectés ensemble.Connector according to any one of the preceding claims, characterized in that the second connector element (2) comprises a shoe (33) arranged to cooperate with the first connector element in order to immobilize the two connector elements at least axially. relative to each other when connected together. Connecteur selon la revendication 7, caractérisé par le fait que le deuxième corps de connecteur (31) comporte un logement latéral (32) agencé pour recevoir le patin (33).Connector according to claim 7, characterized in that the second connector body (31) has a lateral housing (32) arranged to receive the pad (33). Connecteur selon la revendication 8, caractérisé par le fait que le deuxième élément de connecteur comporte une bague fendue (40) agencée pour retenir le patin (33) dans le logement (32).Connector according to claim 8, characterized in that the second connector element comprises a split ring (40) arranged to retain the pad (33) in the housing (32). Connecteur selon l'une quelconque des revendications 7 à 9, le deuxième corps de connecteur présentant un axe longitudinal, caractérisé par le fait que le patin (33) présente une section transversale intérieure, perpendiculaire à cet axe longitudinal, sensiblement en arc de cercle, notamment en demi-cercle.Connector according to any one of claims 7 to 9, the second connector body having a longitudinal axis, characterized in that the pad (33) has an inner cross section, perpendicular to this longitudinal axis, substantially in a circular arc, especially in a semicircle. Connecteur selon l'une quelconque des revendications 7 à 10, caractérisé par le fait que le premier corps de connecteur (5) comporte une portion de connexion (6), notamment cylindrique, pourvue d'une gorge (25), notamment annulaire, dans laquelle le patin (33) peut s'engager au moins partiellement lorsque les deux éléments de connecteur sont connectés.Connector according to any one of claims 7 to 10, characterized in that the first connector body (5) comprises a connecting portion (6), in particular cylindrical, provided with a groove (25), in particular annular, in which the shoe (33) can engage at least partially when the two connector elements are connected. Elément de connecteur de type coaxial pour un connecteur selon l'une quelconque des revendications 1 à 11, comportant : - un corps (5), - un organe de rappel élastique (16), - un élément de contact central (8) ayant une extrémité frontale, cet élément de contact étant mobile, au moins par coulissement, par rapport au corps contre l'action de l'organe de rappel élastique, - une broche de guidage (9) de l'élément de contact, lequel comporte un évidement dans lequel s'engage la broche. A coaxial type connector element for a connector according to any one of claims 1 to 11, comprising: a body (5), an elastic return member (16), a central contact element (8) having a front end, this contact element being movable, at least by sliding, with respect to the body against the action of the elastic return member, - A guide pin (9) of the contact element, which comprises a recess in which engages the pin. Elément de connecteur de type coaxial pour un connecteur selon l'une quelconque des revendications 1 à 11, comportant : - un corps (31), - un élément de contact central (41), - un patin (33) disposé dans un logement latéral du corps. A coaxial type connector element for a connector according to any one of claims 1 to 11, comprising: a body (31), a central contact element (41), - A shoe (33) disposed in a lateral housing of the body.
EP07300982A 2006-05-15 2007-04-25 Coaxial connector Withdrawn EP1858124A1 (en)

Applications Claiming Priority (1)

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FR0651730A FR2901066A1 (en) 2006-05-15 2006-05-15 COAXIAL CONNECTOR

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KR (1) KR20070110798A (en)
CN (1) CN101093925A (en)
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FR2901066A1 (en) 2007-11-16
US20070264853A1 (en) 2007-11-15
TW200810283A (en) 2008-02-16
KR20070110798A (en) 2007-11-20
US7632121B2 (en) 2009-12-15
CN101093925A (en) 2007-12-26

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