EP1250731A1 - Element for coaxial electrical connector and coaxial electrical connector comprising same - Google Patents

Element for coaxial electrical connector and coaxial electrical connector comprising same

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Publication number
EP1250731A1
EP1250731A1 EP01907674A EP01907674A EP1250731A1 EP 1250731 A1 EP1250731 A1 EP 1250731A1 EP 01907674 A EP01907674 A EP 01907674A EP 01907674 A EP01907674 A EP 01907674A EP 1250731 A1 EP1250731 A1 EP 1250731A1
Authority
EP
European Patent Office
Prior art keywords
connector element
printed circuit
circuit board
electrical connector
coaxial electrical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01907674A
Other languages
German (de)
French (fr)
Other versions
EP1250731B1 (en
Inventor
Olivier Guidet
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 EP1250731A1 publication Critical patent/EP1250731A1/en
Application granted granted Critical
Publication of EP1250731B1 publication Critical patent/EP1250731B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01R24/50—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 on a PCB [Printed Circuit Board]
    • 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

Definitions

  • Coaxial electrical connector element and coaxial electrical connector comprising such an element.
  • the present invention relates to a coaxial electrical connector element as well as a coaxial electrical connector comprising such an element and also performing a switching function.
  • Such connectors are in particular used in the telecommunications field, in particular for connecting portable devices such as portable telephones to a test device, or an external antenna or electronic equipment in particular when the portable telephone is to be used in a motor vehicle. .
  • the central conductor and the third conductor of the first connector element are formed by two elastic conductive strips in mutual support in the uncoupled position of the connector, and the central conductor of the second connector element connector supported on an extension of the insulation provided in this second connector element, engages, during coupling connector elements, between the two elastic conductive strips by spreading them apart.
  • the first connector element can be a base mounted on a printed circuit board and the second connector element can be a plug mounted at the end of a coaxial cable and capable of engaging in the base.
  • the first connector element forming a base is mounted on the printed circuit board in an "edge card" arrangement, that is to say that the axis of the base is parallel to the menu.
  • coaxial electrical connectors cannot, in practice, be as miniaturized as might be desired, while being of economical design, due, in particular, to the structure of the second connector element forming a plug, in particular taking into account the arrangement of the central conductor thereof and of the insulator which holds the central conductor.
  • Known coaxial connectors therefore have a complementary connector element, forming a base, of relatively large size, especially in the axial direction.
  • the present invention proposes to produce a coaxial electrical connector element which can be used in particular in a coaxial electrical connector also ensuring a switching function, making it possible to achieve a high degree of miniaturization while being of economical design, by a new embodiment of the contact central.
  • the connector element according to the invention ensures, when used with a complementary switching connector element, excellent radioelectric isolation between the two electrical lines to be switched.
  • the present invention relates to a coaxial electrical connector element comprising a central conductor and an external body forming a ground contact, made of conductive material or coated with a conductive material, defining a cylindrical interior cavity, characterized in that the conductor central is a metallized track made on one face of a printed circuit board, preferably of elongated rectangular shape, held in said body by being arranged diametrically in said cavity, the printed circuit board comprising, in addition to said metallized track forming central contact, at least one metallized zone produced on the face of the wafer opposite to that comprising said track and / or on the face comprising said track, the one or more metallized areas being electrically connected to ground by being in contact with the body of said connector element.
  • the central contact track according to the invention alone constitutes a microwave transmission line, with respect to the metallized zone or zones in contact with the ground.
  • the printed circuit board is held in the body by being engaged in diametrically opposite grooves of the inner wall of an extension of narrowed section of said body.
  • the connector element may have a straight or angled shape.
  • the present invention also relates to a coaxial electrical connector for ensuring a switching function, comprising a first connector element comprising centrally two elastic conductive blades in mutual support in the uncoupled position of the connector and an external ground conductor which surrounds said blades by being separated from them by an insulator, characterized in that it comprises, as second connector element, a connector element as defined above, allowing during its coupling with the first connector element move said elastic strips apart from one another by making electrical contact between one of said strips, constituting the central conductor of said first connector element, and the conductive metallic track forming central conductor of the second connector element .
  • FIG. 1 is a schematic view of a connector element coaxial according to the invention, arranged as a plug placed at the end of a coaxial cable,
  • FIG. 1 is a perspective view partially in section of an element connector complementary to that of FIG. 1,
  • FIG. 3 is a perspective view partially in section of the elements of the connectors of FIGS. 1 and 2 in the assembled position
  • the coaxial electrical connector element according to the invention illustrated in FIG. 1 comprises an external body 1 forming a ground contact, internally defining a cylindrical cavity 2 in which is placed a printed circuit board of elongated rectangular shape 3.
  • the printed circuit board 3 is held by being retained at its end in two diametrically opposite grooves 4 made in the inner wall of an extension of the body, of narrowed section of cylindro-conical shape 5 , the end edge of the plate 3 being at the end face of the extension 5.
  • the plate has on one of its faces a metallized track 6 extending substantially axially in the connector element once the wafer 3 placed in it, said track 6 extending from one end to the other or substantially from one end to the other of said wafer.
  • this metallized track which constitutes the central conductor of the connector element in which it is mounted, will be described later with reference to FIGS. 4 and 6.
  • the track 6 of the plate is brought to be connected to a conductor of a connected element, in particular, as seen in FIG. 3, the central conductor 7 of a coaxial cable comprising an external ground conductor 8, separated by an insulator 9 from the central conductor 7.
  • the body 1 of the connector element is arranged to receive in its central cavity 2 the coaxial cable as seen in FIG. 3 .
  • the connector element illustrated in FIG. 1 can be used in conjunction with a complementary connector element in the form of a base, illustrated in FIG. 2, to produce a coaxial electrical connector making it possible to provide a switching function.
  • the base illustrated in FIG. 2, and which is found in the assembled position in FIG. 3, comprises a cylindrical body 10 having a flared upper part 11 forming a ground conductor, capable of being fixed by lugs 12 to a ground line of a printed circuit board, not shown, perpendicular to which the base is mounted.
  • the base comprises two conductive metal blades 13a, 13b bearing against each other in the rest position, as seen in FIG. 2, connected by lugs 14 to tracks on the printed circuit board (not shown), the blades 13a, 13b being separated from the body 10 of the base by insulating bodies 15.
  • the two connector elements are assembled, the blade 13a then coming into contact with the track 6 forming a central contact, the blade 13b coming into contact with the opposite face of the printed circuit board 3 which, as will be seen in connection with FIGS. 5 and 7, may or may not have a metallized face.
  • the track 6 of the wafer 3 ensures in the switched position, illustrated in FIG. 3, electrical continuity between the blade 13a and the central conductor 7 of the coaxial cable.
  • the blades 13a and 13b return to mutual support.
  • the body 1 forming a ground contact can be made of a conductive material or, where appropriate, of a non-conductive material metallized in the zones, interior and respectively exterior, in which, in the assembled position, it is brought into contact respectively. of the ground conductor 8 of the coaxial cable and of the body 10, 11 of the base, as well as in contact with the metallized areas forming ground contact of the wafer which will be described in more detail below.
  • FIGS. 4 and 5 illustrate alternative embodiments of metallizations on the two respective faces of the printed circuit board 3.
  • FIGS. 4 and 5 correspond to an embodiment of the "stripline line" type.
  • FIGS. 4a, 4b, 4c illustrate variants of the metallized track 6 forming the central conductor of the connector element illustrated in FIG. 1.
  • the track has flared end portions, and therefore has, in plan view, a general shape of dumbbell.
  • the track 6 extends to the ends of the card.
  • the flared end portion has the advantage of ensuring electrical contact with the signal strip 13a of the complementary connector element, even in the event of incorrect positioning. It was found that after a large number of operations, the blades of the base could wear despite the coatings used. In this case, it can become difficult to obtain a reliable contact in the unswitched position and illustrated in FIG. 2.
  • the opposite face of the card is intended to come into contact with the opposite blade 13b of the base.
  • this face of the printed circuit board is metallized over its entire surface, the metallization 16 being apparent over the entire surface as illustrated in FIG. 5a or covered in its central part by an insulating varnish as seen in FIG. 5b allowing the blade 13b of the base to be kept isolated.
  • This extra thickness imparted by the insulating varnish ensures better insulation between electrical paths.
  • Figures 6 and 7 show alternative embodiments of the "coplanar line" type.
  • the face of the plate comprising the metallized track 6 forming a contact central comprises a metallization 17 transforming the microwave line into a coplanar type line.
  • the ground plane on the opposite face formed by a metallization 16 can be maintained by being coated if necessary with an insulating varnish as in the case of FIG. 5b, (FIGS. 7b and 7c) or even deleted (FIG. 7a) without too severe performance degradation.
  • orifices passing through 18 with a metallized wall four in number in the example illustrated, can be arranged by putting the mass metallizations of the two opposite faces of the printed circuit board 3.
  • the present invention makes it possible, thanks to the design of the connector element forming a plug, as illustrated in FIG. 1, to fabricate complementary connector elements in the form of a socket of great simplicity and which can be obtained by mass production means, the body being obtainable, for example, by deep drawing and the elastic blades by cutting.
  • the connector element according to the invention is used with a connector element such as a base, illustrated in FIG. 2, to ensure a switching function, excellent insulation is obtained.
  • the insulator being in fact the body of the printed circuit board 3 provided with metallizations.
  • the use of such a thin printed circuit board as a metallized track support forming a central contact makes it possible to reduce the size of the connector, in particular of the connector element forming a base, in particular by reducing the length of the elastic blades. of the latter which, insofar as they undergo little deflection, during assembly can therefore be shorter. High mechanical endurance is obtained with wear occurring on the blades in different zones in the switched and unswitched position, as has been explained above.

Abstract

A coaxial electrical connector portion comprises a central conductor and an outer body (1) forming a ground contact and defining a cylindrical inside cavity. The central conductor is a metallized track (6) made on one face of a printed circuit insert (3), said printed circuit insert also carrying at least one metallized zone made on the face of the insert opposite from its face carrying said track (6) and/or on the face carrying it, said metallized zone(s) being electrically connected to ground and being in contact with the body (1) of said connector portion.

Description

Elément de connecteur électrique coaxial et connecteur électrique coaxial comportant un tel élément. Coaxial electrical connector element and coaxial electrical connector comprising such an element.
La présente invention concerne un élément de connecteur électrique coaxial ainsi qu'un connecteur électrique coaxial comportant un tel élément et réalisant également une fonction de commutation.The present invention relates to a coaxial electrical connector element as well as a coaxial electrical connector comprising such an element and also performing a switching function.
On connaît déjà de nombreux types de connecteurs coaxiaux qui permettent de connecter une ligne électrique sur une autre ligne électrique lorsque les deux éléments de connecteur sont engagés l'un dans l'autre.Numerous types of coaxial connectors are already known which make it possible to connect an electrical line to another electrical line when the two connector elements are engaged one inside the other.
De tels connecteurs sont en particulier utilisés dans le domaine des télécommunications, notamment pour raccorder des appareils portatifs tels que des téléphones portables à un dispositif de test, ou une antenne extérieure ou un équipement électronique notamment lorsque le téléphone portable doit être utilisé dans un véhicule automobile.Such connectors are in particular used in the telecommunications field, in particular for connecting portable devices such as portable telephones to a test device, or an external antenna or electronic equipment in particular when the portable telephone is to be used in a motor vehicle. .
La société déposante a déjà décrit dans US-A-5.580.261 un tel connecteur électrique permettant d'assurer une fonction de commutation et comportant un premier élément de connecteur comprenant un conducteur central et un conducteur de masse qui entoure le conducteur central en étant séparé de ce dernier par un isolant, ainsi qu'un troisième conducteur qui se trouve en contact électrique avec le conducteur central, à l'état accouplé du connecteur et un second élément de connecteur comprenant un conducteur central et un conducteur de masse extérieur séparés par un isolant, ledit second élément de connecteur étant agencé pour, lors de son accouplement avec ledit premier élément de connecteur, écarter l'un de l'autre le conducteur central et le troisième conducteur du premier élément de connecteur, et mettre en contact les conducteurs centraux des deux éléments de connecteur. II était prévu dans ce document que sur la majeure partie de sa longueur, le troisième conducteur du premier élément de connecteur soit séparé du conducteur central de cet élément de connecteur par le conducteur de masse.The applicant company has already described in US-A-5,580,261 such an electrical connector making it possible to ensure a switching function and comprising a first connector element comprising a central conductor and a ground conductor which surrounds the central conductor while being separate of the latter by an insulator, as well as a third conductor which is in electrical contact with the central conductor, in the coupled state of the connector and a second connector element comprising a central conductor and an external ground conductor separated by a insulating, said second connector element being arranged to, when it is coupled with said first connector element, separate the central conductor and the third conductor from the first connector element, and bring the central conductors into contact of the two connector elements. It was provided in this document that over most of its length, the third conductor of the first connector element is separated from the central conductor of this connector element by the ground conductor.
Dans une autre réalisation décrite dans US-A-5.453.019, le conducteur central et le troisième conducteur du premier élément de connecteur sont formés par deux lames élastiques conductrices en appui mutuel en position désaccouplée du connecteur, et le conducteur central du second élément de connecteur en appui sur un prolongement de l'isolant prévu dans ce second élément de connecteur, s'engage, lors de l'accouplement des éléments de connecteur, entre les deux lames élastiques conductrices en les écartant.In another embodiment described in US-A-5,453,019, the central conductor and the third conductor of the first connector element are formed by two elastic conductive strips in mutual support in the uncoupled position of the connector, and the central conductor of the second connector element connector supported on an extension of the insulation provided in this second connector element, engages, during coupling connector elements, between the two elastic conductive strips by spreading them apart.
Dans la pratique, le premier élément de connecteur peut être une embase montée sur une carte de circuit imprimé et le second élément de connecteur peut être une fiche montée à l'extrémité d'un câble coaxial et apte à s'engager dans l'embase. Compte tenu des dimensions nécessitées par les structures connues, le premier élément de connecteur formant embase est monté sur la carte de circuit imprimé selon un montage "edge card", c'est à dire que l'axe de l'embase est parallèle à la carte.In practice, the first connector element can be a base mounted on a printed circuit board and the second connector element can be a plug mounted at the end of a coaxial cable and capable of engaging in the base. . Given the dimensions required by known structures, the first connector element forming a base is mounted on the printed circuit board in an "edge card" arrangement, that is to say that the axis of the base is parallel to the menu.
Pour des raisons d'accessibilité, il est souhaitable de pouvoir monter l'élément de connecteur formant embase perpendiculairement à la carte de circuit imprimé, comme cela est le cas avec le connecteur coaxial décrit dans JP-A-10125410, ce qui réduit la hauteur disponible pour l'élément de connecteur dans l'objet, tel qu'un téléphone portable, dans lequel il est monté.For accessibility reasons, it is desirable to be able to mount the connector element forming a base perpendicular to the printed circuit board, as is the case with the coaxial connector described in JP-A-10125410, which reduces the height. available for the connector element in the object, such as a mobile phone, in which it is mounted.
Les connecteurs électriques coaxiaux connus ne peuvent, dans la pratique, être aussi miniaturisés qu'on pourrait le souhaiter, tout en étant de conception économique, du fait, en particulier de la structure du second élément de connecteur formant fiche, notamment compte tenu de l'agencement du conducteur central de celui-ci et de l'isolant qui maintient le conducteur central. Les connecteurs coaxiaux connus comportent de ce fait un élément de connecteur complémentaire, formant embase, de dimension relativement importante notamment dans le sens axial. La présente invention se propose de réaliser un élément de connecteur électrique coaxial utilisable en particulier dans un connecteur électrique coaxial assurant également une fonction de commutation, permettant d'atteindre un grand degré de miniaturisation tout en étant de conception économique, par une réalisation nouvelle du contact central. De plus, l'élément de connecteur selon l'invention assure, lorsqu'il est utilisé avec un élément de connecteur complémentaire à commutation une excellente isolation radioélectrique entre les deux lignes électriques à commuter.Known coaxial electrical connectors cannot, in practice, be as miniaturized as might be desired, while being of economical design, due, in particular, to the structure of the second connector element forming a plug, in particular taking into account the arrangement of the central conductor thereof and of the insulator which holds the central conductor. Known coaxial connectors therefore have a complementary connector element, forming a base, of relatively large size, especially in the axial direction. The present invention proposes to produce a coaxial electrical connector element which can be used in particular in a coaxial electrical connector also ensuring a switching function, making it possible to achieve a high degree of miniaturization while being of economical design, by a new embodiment of the contact central. In addition, the connector element according to the invention ensures, when used with a complementary switching connector element, excellent radioelectric isolation between the two electrical lines to be switched.
La présente invention a pour objet un élément de connecteur électrique coaxial comprenant un conducteur central et un corps extérieur formant contact de masse, réalisé en matériau conducteur ou revêtu d'une matière conductrice, définissant une cavité intérieure cylindrique, caractérisé par le fait que le conducteur central est une piste métallisée réalisée sur une face d'une plaquette de circuit imprimé, de préférence de forme rectangulaire allongée, maintenue dans ledit corps en étant disposée diamétralement dans ladite cavité, la plaquette de circuit imprimé comportant outre ladite piste métallisée formant contact central, au moins une zone métallisée réalisée sur la face de la plaquette opposée à celle comportant ladite piste et/ou sur la face comportant ladite piste, la ou les zones métallisées étant reliées électriquement à la masse en étant en contact avec le corps dudit élément de connecteur.The present invention relates to a coaxial electrical connector element comprising a central conductor and an external body forming a ground contact, made of conductive material or coated with a conductive material, defining a cylindrical interior cavity, characterized in that the conductor central is a metallized track made on one face of a printed circuit board, preferably of elongated rectangular shape, held in said body by being arranged diametrically in said cavity, the printed circuit board comprising, in addition to said metallized track forming central contact, at least one metallized zone produced on the face of the wafer opposite to that comprising said track and / or on the face comprising said track, the one or more metallized areas being electrically connected to ground by being in contact with the body of said connector element.
On réalise ainsi dans l'élément de connecteur selon l'invention deux cavités isolées électromagnétiquement, l'une transmettant le signal et l'autre ayant une fonction d'isolement vis-à-vis du rayonnement électromagnétique.There are thus produced in the connector element according to the invention two cavities electromagnetically isolated, one transmitting the signal and the other having a function of isolation from electromagnetic radiation.
La piste formant contact central selon l'invention constitue à elle seule une ligne de transmission hyperfréquence, par rapport à la ou les zones métallisées en contact avec la masse.The central contact track according to the invention alone constitutes a microwave transmission line, with respect to the metallized zone or zones in contact with the ground.
De préférence la plaquette de circuit imprimé est maintenue dans le corps en étant engagée dans des gorges diamétralement opposées de la paroi intérieure d'un prolongement de section rétrécie dudit corps. L'élément de connecteur peut présenter une forme droite ou coudée.Preferably the printed circuit board is held in the body by being engaged in diametrically opposite grooves of the inner wall of an extension of narrowed section of said body. The connector element may have a straight or angled shape.
La présente invention a également pour objet un connecteur électrique coaxial permettant d'assurer une fonction de commutation, comportant un premier élément de connecteur comprenant centralement deux lames élastiques conductrices en appui mutuel en position désaccouplée du connecteur et un conducteur de masse extérieur qui entoure lesdites lames en étant séparé de celles-ci par un isolant, caractérisé par le fait qu'il comporte en tant que second élément de connecteur un élément de connecteur tel que défini ci-dessus, permettant lors de son accouplement avec le premier élément de connecteur d'écarter l'une de l'autre lesdites lames élastiques de celui-ci en réalisant un contact électrique entre l'une desdites lames, constituant le conducteur central dudit premier élément de connecteur, et la piste métallisée conductrice formant conducteur central du second élément de connecteur.The present invention also relates to a coaxial electrical connector for ensuring a switching function, comprising a first connector element comprising centrally two elastic conductive blades in mutual support in the uncoupled position of the connector and an external ground conductor which surrounds said blades by being separated from them by an insulator, characterized in that it comprises, as second connector element, a connector element as defined above, allowing during its coupling with the first connector element move said elastic strips apart from one another by making electrical contact between one of said strips, constituting the central conductor of said first connector element, and the conductive metallic track forming central conductor of the second connector element .
D'autres avantages et caractéristiques de la présente invention apparaîtront à la lecture de la description qui suit, de modes de réalisation nullement limitatifs, en se référant au dessin annexé dans lequel : - la figure 1 est une vue schématique d'un élément de connecteur coaxial selon l'invention, agencé en fiche mise en place à l'extrémité d'un câble coaxial,Other advantages and characteristics of the present invention will appear on reading the following description of non-limiting embodiments, with reference to the appended drawing in which: - Figure 1 is a schematic view of a connector element coaxial according to the invention, arranged as a plug placed at the end of a coaxial cable,
- la figure 2 est une vue en perspective partiellement en coupe d'un élément de connecteur complémentaire de celui de la figure 1,- Figure 2 is a perspective view partially in section of an element connector complementary to that of FIG. 1,
- la figure 3 est une vue en perspective partiellement en coupe des éléments des connecteurs des figures 1 et 2 en position assemblée,FIG. 3 is a perspective view partially in section of the elements of the connectors of FIGS. 1 and 2 in the assembled position,
- les figures 4 à 7 représentent des variantes de plaquettes de circuits imprimés utilisées dans l'élément de connecteur selon la figure 1.- Figures 4 to 7 show variants of printed circuit boards used in the connector element according to Figure 1.
L'élément de connecteur électrique coaxial selon l'invention illustré à la figure 1 comporte un corps extérieur 1 formant un contact de masse, définissant intérieurement une cavité cylindrique 2 dans laquelle est mise en place une plaquette de circuit imprimé de forme rectangulaire allongée 3. Comme on le voit sur la figure 1, la plaquette de circuit imprimé 3 est maintenue en étant retenue à son extrémité dans deux gorges diamétralement opposées 4 réalisées dans la paroi intérieure d'un prolongement du corps, de section rétrécie de forme cylindro-conique 5, le bord d'extrémité de la plaquette 3 se trouvant au niveau de la face d'extrémité du prolongement 5. La plaquette comporte sur une de ses faces une piste métallisée 6 s'étendant sensiblement axialement dans l'élément de connecteur une fois la plaquette 3 mise en place dans celui-ci, ladite piste 6 s'étendant d'un bout à l'autre ou sensiblement d'un bout à l'autre de ladite plaquette. Différentes variantes de cette piste métallisée qui constitue le conducteur central de l'élément de connecteur dans lequel elle est montée, vont être décrites ultérieurement en référence aux figures 4 et 6.The coaxial electrical connector element according to the invention illustrated in FIG. 1 comprises an external body 1 forming a ground contact, internally defining a cylindrical cavity 2 in which is placed a printed circuit board of elongated rectangular shape 3. As seen in Figure 1, the printed circuit board 3 is held by being retained at its end in two diametrically opposite grooves 4 made in the inner wall of an extension of the body, of narrowed section of cylindro-conical shape 5 , the end edge of the plate 3 being at the end face of the extension 5. The plate has on one of its faces a metallized track 6 extending substantially axially in the connector element once the wafer 3 placed in it, said track 6 extending from one end to the other or substantially from one end to the other of said wafer. Different variants of this metallized track which constitutes the central conductor of the connector element in which it is mounted, will be described later with reference to FIGS. 4 and 6.
A son extrémité opposée à celle illustrée à la figure 1, la piste 6 de la plaquette est amenée à être reliée à un conducteur d'un élément raccordé, en particulier, comme on le voit sur la figure 3, le conducteur central 7 d'un câble coaxial comportant un conducteur de masse extérieur 8, séparé par un isolant 9 du conducteur central 7. Le corps 1 de l'élément de connecteur est agencé pour recevoir dans sa cavité centrale 2 le câble coaxial comme on le voit sur la figure 3.At its end opposite to that illustrated in FIG. 1, the track 6 of the plate is brought to be connected to a conductor of a connected element, in particular, as seen in FIG. 3, the central conductor 7 of a coaxial cable comprising an external ground conductor 8, separated by an insulator 9 from the central conductor 7. The body 1 of the connector element is arranged to receive in its central cavity 2 the coaxial cable as seen in FIG. 3 .
Il est à noter que sur la figure 3, pour plus de clarté, la piste métallisée de la plaquette de circuit imprimé 3 n'a pas été représentée.It should be noted that in FIG. 3, for greater clarity, the metallized track of the printed circuit board 3 has not been shown.
L'élément de connecteur illustré à la figure 1 peut être utilisé en liaison avec un élément de connecteur complémentaire en forme d'embase, illustré à la figure 2, pour réaliser un connecteur électrique coaxial permettant d'assurer une fonction de commutation. L'embase illustrée à la figure 2, et que l'on retrouve en position assemblée sur la figure 3, comporte un corps cylindrique 10 présentant une partie supérieure évasée 1 1 formant conducteur de masse, apte à être fixée par des pattes 12 à une ligne de masse d'une carte de circuit imprimé, non représentée, perpendiculairement à laquelle est montée l'embase.The connector element illustrated in FIG. 1 can be used in conjunction with a complementary connector element in the form of a base, illustrated in FIG. 2, to produce a coaxial electrical connector making it possible to provide a switching function. The base illustrated in FIG. 2, and which is found in the assembled position in FIG. 3, comprises a cylindrical body 10 having a flared upper part 11 forming a ground conductor, capable of being fixed by lugs 12 to a ground line of a printed circuit board, not shown, perpendicular to which the base is mounted.
L'embase comporte deux lames métalliques conductrices 13a, 13b en appui l'une contre l'autre en position de repos, comme on le voit sur la figure 2, reliées par des pattes 14 à des pistes de la carte de circuit imprimé (non représentée), les lames 13a, 13b étant séparées du corps 10 de l'embase par des corps isolants 15. Lorsque l'on désire réaliser une commutation, on assemble les deux éléments de connecteur, la lame 13a venant alors au contact de la piste 6 formant contact central, la lame 13b venant au contact de la face opposée de la plaquette de circuit imprimé 3 qui, comme on le verra en liaison avec les figures 5 et 7, présente ou non une face métallisée. La piste 6 de la plaquette 3 assure dans la position commutée, illustrée à la figure 3, une continuité électrique entre la lame 13a et le conducteur central 7 du câble coaxial.The base comprises two conductive metal blades 13a, 13b bearing against each other in the rest position, as seen in FIG. 2, connected by lugs 14 to tracks on the printed circuit board (not shown), the blades 13a, 13b being separated from the body 10 of the base by insulating bodies 15. When it is desired to carry out a switching operation, the two connector elements are assembled, the blade 13a then coming into contact with the track 6 forming a central contact, the blade 13b coming into contact with the opposite face of the printed circuit board 3 which, as will be seen in connection with FIGS. 5 and 7, may or may not have a metallized face. The track 6 of the wafer 3 ensures in the switched position, illustrated in FIG. 3, electrical continuity between the blade 13a and the central conductor 7 of the coaxial cable.
Une fois que l'on retire l'élément de connecteur muni de la plaquette 3 de circuit imprimé de l'embase, les lames 13a et 13b reviennent en appui mutuel.Once the connector element provided with the printed circuit board 3 is removed from the base, the blades 13a and 13b return to mutual support.
Le corps 1 formant contact de masse peut être réalisé en un matériau conducteur ou, le cas échéant, en un matériau non conducteur métallisé dans les zones, intérieures et respectivement extérieures, dans lesquelles, en position assemblé, il est amené à venir au contact respectivement du conducteur de masse 8 du câble coaxial et du corps 10, 11 de l'embase, ainsi qu'au contact des zones métallisées formant contact de masse de la plaquette qui vont être décrites plus en détail ci-dessous. On se réfère maintenant aux figures 4 et 5 qui illustrent des variantes de réalisation de métallisations sur les deux faces respectives de la plaquette de circuit imprimé 3.The body 1 forming a ground contact can be made of a conductive material or, where appropriate, of a non-conductive material metallized in the zones, interior and respectively exterior, in which, in the assembled position, it is brought into contact respectively. of the ground conductor 8 of the coaxial cable and of the body 10, 11 of the base, as well as in contact with the metallized areas forming ground contact of the wafer which will be described in more detail below. Reference is now made to FIGS. 4 and 5 which illustrate alternative embodiments of metallizations on the two respective faces of the printed circuit board 3.
Les figures 4 et 5 correspondent à une réalisation de type "ligne stripline". Les figures 4a, 4b, 4c illustrent des variantes de la piste métallisée 6 formant le conducteur central de l'élément de connecteur illustré à la figure 1.Figures 4 and 5 correspond to an embodiment of the "stripline line" type. FIGS. 4a, 4b, 4c illustrate variants of the metallized track 6 forming the central conductor of the connector element illustrated in FIG. 1.
Dans les trois formes de réalisation illustrées, la piste comporte des parties d'extrémité évasées, et présente donc, vue en plan, une forme générale d'haltère. Dans le mode de réalisation de la figure 4a, la piste 6 s'étend jusqu'aux extrémités de la carte.In the three illustrated embodiments, the track has flared end portions, and therefore has, in plan view, a general shape of dumbbell. In the embodiment of FIG. 4a, the track 6 extends to the ends of the card.
La partie d'extrémité évasée a pour avantage d'assurer un contact électrique avec la lame de signal 13a de l'élément de connecteur complémentaire, même en cas de mauvais positionnement. On a constaté qu'au bout d'un grand nombre de manœuvres, les lames de l'embase pouvaient s'user malgré les revêtements utilisés. Dans ce cas, il peut devenir difficile d'obtenir un contact fiable dans la position non commutée et illustrée à la figure 2.The flared end portion has the advantage of ensuring electrical contact with the signal strip 13a of the complementary connector element, even in the event of incorrect positioning. It was found that after a large number of operations, the blades of the base could wear despite the coatings used. In this case, it can become difficult to obtain a reliable contact in the unswitched position and illustrated in FIG. 2.
Pour remédier à ce problème, on peut mettre en œuvre pour la piste 6 le mode de réalisation de la figure 4b dans lequel la partie d'extrémité évasée de la piste 6 est divisée en deux parties séparées par une zone non métallisée. Le contact continue à se faire sur l'un ou l'autre des côtés de la métallisation mais la zone centrale de la lame n'est pas usée par le frottement sur une piste métallisée de la carte de circuit imprimé. On conserve ainsi sur les lames de l'embase une zone très peu usée. Dans la position non commutée, ces zones non usées viennent en contact l'une avec l'autre assurant un bon contact électrique. Dans la position commutée, ce sont les zones usées de la lame qui viennent en contact des parties métallisées de la plaquette. On augmente, grâce à cette réalisation, la durée de vie du produit d'une manière qui peut se révéler significative.To remedy this problem, it is possible to implement for track 6 the embodiment of FIG. 4b in which the flared end part of track 6 is divided into two parts separated by a non-metallized zone. Contact continues to be made on one or other of the sides of the metallization but the central zone of the blade is not worn by friction on a metallized track of the printed circuit board. A very little worn area is thus kept on the blades of the base. In the unswitched position, these unworn zones come into contact with each other ensuring good electrical contact. In the switched position, the worn areas of the blade come into contact with the metallized parts of the insert. Thanks to this embodiment, the life of the product is increased in a way which can prove to be significant.
On peut également mettre en œuvre le mode de réalisation illustré à la figure 4c où la partie évasée de la piste métallisée 6 est légèrement décalée par rapport au bord d'extrémité de la carte. Cette réalisation permet également de modifier les conditions de frottement et donc d'usure.It is also possible to implement the embodiment illustrated in FIG. 4c where the flared part of the metallized track 6 is slightly offset from the end edge of the card. This embodiment also makes it possible to modify the conditions of friction and therefore of wear.
La face opposée de la carte dont deux modes de réalisation sont représentés aux figures 5a et 5b est destinée à venir en contact de la lame opposée 13b de l'embase.The opposite face of the card, two embodiments of which are shown in FIGS. 5a and 5b is intended to come into contact with the opposite blade 13b of the base.
Avantageusement, cette face de la carte de circuit imprimé est métallisée sur toute sa surface, la métallisation 16 étant apparente sur toute la surface comme illustré à la figure 5a ou recouverte dans sa partie centrale par un vernis isolant comme on le voit sur la figure 5b permettant de maintenir isolée la lame 13b de l'embase. Cette surépaisseur conférée par le vernis isolant permet d'assurer une meilleure isolation entre voies électriques. Les figures 6 et 7 montrent des variantes de réalisation de type "ligne coplanaire".Advantageously, this face of the printed circuit board is metallized over its entire surface, the metallization 16 being apparent over the entire surface as illustrated in FIG. 5a or covered in its central part by an insulating varnish as seen in FIG. 5b allowing the blade 13b of the base to be kept isolated. This extra thickness imparted by the insulating varnish ensures better insulation between electrical paths. Figures 6 and 7 show alternative embodiments of the "coplanar line" type.
La face de la plaquette comportant la piste métallisée 6 formant contact central comporte une métallisation 17 transformant la ligne hyperfréquence en ligne de type coplanaire.The face of the plate comprising the metallized track 6 forming a contact central comprises a metallization 17 transforming the microwave line into a coplanar type line.
Le plan de masse sur la face opposée formé par une métallisation 16 peut être maintenu en étant revêtu le cas échéant d'un vernis isolant comme dans le cas de la figure 5b, (figures 7b et 7c) ou même supprimé (figure 7a) sans dégradation trop importante des performances. Dans le cas d'une réalisation de plaquette de circuit imprimé comportant des faces telles que représentées sur les figures 6b et 7c, des orifices traversant 18 à paroi métallisée, au nombre de quatre dans l'exemple illustré, peuvent être ménagés mettant en communication les métallisations de masse des deux faces opposées de la carte de circuit imprimé 3.The ground plane on the opposite face formed by a metallization 16 can be maintained by being coated if necessary with an insulating varnish as in the case of FIG. 5b, (FIGS. 7b and 7c) or even deleted (FIG. 7a) without too severe performance degradation. In the case of an embodiment of a printed circuit board having faces as shown in FIGS. 6b and 7c, orifices passing through 18 with a metallized wall, four in number in the example illustrated, can be arranged by putting the mass metallizations of the two opposite faces of the printed circuit board 3.
La présente invention permet, grâce à la conception de l'élément de connecteur formant fiche, tel qu'illustré à la figure 1, de fabriquer des éléments de connecteur complémentaires en forme d'embase d'une grande simplicité et qui peuvent être obtenus par des moyens de production de masse, le corps pouvant être obtenu, par exemple, par emboutissage profond et les lames élastiques par découpe.The present invention makes it possible, thanks to the design of the connector element forming a plug, as illustrated in FIG. 1, to fabricate complementary connector elements in the form of a socket of great simplicity and which can be obtained by mass production means, the body being obtainable, for example, by deep drawing and the elastic blades by cutting.
Lorsque l'élément de connecteur selon l'invention, tel qu'illustré à la figure 1 est utilisé avec un élément de connecteur tel qu'une embase, illustrée à la figure 2, pour assurer une fonction de commutation, on obtient une excellente isolation entre les voies à l'état commuté, l'isolant étant en fait le corps de la plaquette de circuit imprimé 3 muni des métallisations. L'utilisation d'une telle plaquette de circuit imprimé de faible épaisseur comme support de piste métallisée formant contact central, permet de réduire la taille du connecteur, en particulier de l'élément de connecteur formant embase, en réduisant notamment la longueur des lames élastiques de celle-ci qui, dans la mesure où elles subissent peu de déflexions, lors de l'assemblage peuvent donc être plus courtes. On obtient une endurance mécanique élevée avec une usure intervenant sur les lames dans des zones différentes en position commutée et non commutée, comme cela a été expliqué ci-dessus.When the connector element according to the invention, as illustrated in FIG. 1, is used with a connector element such as a base, illustrated in FIG. 2, to ensure a switching function, excellent insulation is obtained. between the channels in the switched state, the insulator being in fact the body of the printed circuit board 3 provided with metallizations. The use of such a thin printed circuit board as a metallized track support forming a central contact makes it possible to reduce the size of the connector, in particular of the connector element forming a base, in particular by reducing the length of the elastic blades. of the latter which, insofar as they undergo little deflection, during assembly can therefore be shorter. High mechanical endurance is obtained with wear occurring on the blades in different zones in the switched and unswitched position, as has been explained above.
Bien que l'invention ait été décrite en liaison avec des modes de réalisation particuliers, il est bien évident qu'elle n'y est nullement limitée et qu'on peut lui apporter différentes variantes et modifications sans pour autant sortir ni de son cadre, ni de son esprit. Although the invention has been described in connection with particular embodiments, it is obvious that it is in no way limited thereto and that it can be brought to it in different variants and modifications without departing from its scope, nor of his mind.

Claims

REVENDICATIONS
1. Elément de connecteur électrique coaxial comportant un conducteur central et un corps extérieur (1) formant contact de masse et définissant une cavité intérieure cylindrique (2), caractérisé par le fait que le conducteur central est une piste métallisée (6) réalisée sur une face d'une plaquette de circuit imprimé (3), ladite plaquette de circuit imprimé comportant en outre au moins une zone métallisée (16, 17) réalisée sur la face de la plaquette opposée à celle comportant ladite piste (6) et/ou sur la face comportant celle-ci, la ou lesdites zones métallisées (16, 17) étant reliées électriquement à la masse en étant en contact avec le corps (1) dudit élément de connecteur.1. Coaxial electrical connector element comprising a central conductor and an external body (1) forming ground contact and defining a cylindrical internal cavity (2), characterized in that the central conductor is a metallized track (6) produced on a face of a printed circuit board (3), said printed circuit board further comprising at least one metallized zone (16, 17) formed on the face of the board opposite to that comprising said track (6) and / or on the face comprising the latter, the one or more metallized zones (16, 17) being electrically connected to ground by being in contact with the body (1) of said connector element.
2. Elément de connecteur électrique coaxial selon la revendication 1, caractérisé par le fait que la piste métallisée (6) formant le conducteur central comporte des parties d'extrémité évasées.2. Coaxial electrical connector element according to claim 1, characterized in that the metallized track (6) forming the central conductor has flared end parts.
3. Elément de connecteur électrique coaxial selon la revendication 1 ou 2, caractérisé par le fait que ladite plaquette de circuit imprimé (3) présente une forme rectangulaire allongée et est maintenue dans ledit corps (1) en étant disposée diamétralement dans la cavité cylindrique (2) de celui-ci.3. Coaxial electrical connector element according to claim 1 or 2, characterized in that said printed circuit board (3) has an elongated rectangular shape and is held in said body (1) by being arranged diametrically in the cylindrical cavity ( 2) of it.
4. Elément de connecteur électrique coaxial selon l'une quelconque des revendications 1 à 3, caractérisé par le fait que la plaquette de circuit imprimé (3) est maintenue dans le corps (1) en étant engagée dans des gorges (4) diamétralement opposées dans la paroi intérieure d'un prolongement (5) de section rétrécie dudit corps.4. coaxial electrical connector element according to any one of claims 1 to 3, characterized in that the printed circuit board (3) is held in the body (1) by being engaged in grooves (4) diametrically opposite in the inner wall of an extension (5) of narrowed section of said body.
5. Connecteur électrique coaxial permettant d'assurer une fonction de commutation, comportant un premier élément de connecteur comprenant centralement deux lames élastiques conductrices (13a, 13b) en appui mutuel en position désaccouplée du connecteur et un conducteur de masse extérieur (10, 11) qui entoure lesdites lames en étant séparé de celles-ci par un isolant (15), caractérisé par le fait qu'il comporte en tant que second élément de connecteur un élément de connecteur selon l'une quelconque des revendications précédentes, permettant lors de son accouplement avec le premier élément de connecteur d'écarter l'une de l'autre lesdites lames élastiques de celui-ci en réalisant un contact électrique entre l'une desdites lames (13a) constituant le conducteur central du premier élément de connecteur et la piste métallisée conductrice (6) formant conducteur central du second élément de connecteur. 5. Coaxial electrical connector for ensuring a switching function, comprising a first connector element comprising centrally two elastic conductive strips (13a, 13b) in mutual support in the uncoupled position of the connector and an external ground conductor (10, 11) which surrounds said blades being separated from them by an insulator (15), characterized in that it comprises, as second connector element, a connector element according to any one of the preceding claims, allowing during its coupling with the first connector element to separate said elastic blades from one another by making electrical contact between one of said blades (13a) constituting the central conductor of the first connector element and the track conductive metallized (6) forming the central conductor of the second connector element.
6. Connecteur électrique coaxial selon l'une quelconque des revendications précédentes, caractérisé par le fait que ledit premier élément de connecteur est une embase apte à être fixée à une carte de circuit imprimé perpendiculairement à celle-ci.6. Coaxial electrical connector according to any one of the preceding claims, characterized in that said first connector element is a base adapted to be fixed to a printed circuit board perpendicular thereto.
7. Connecteur électrique coaxial selon la revendication 6, caractérisé par le fait que l'embase comporte un corps cylindrique (10) formant conducteur de masse et muni de pattes (12) pour une fixation à une ligne de masse de la carte de circuit imprimé.7. Coaxial electrical connector according to claim 6, characterized in that the base comprises a cylindrical body (10) forming a ground conductor and provided with lugs (12) for attachment to a ground line of the printed circuit board .
8. Connecteur électrique coaxial selon la revendication 6, caractérisé par le fait que les lames élastiques (13a, 13b) sont séparées du corps (10) de l'embase par des corps isolants (15) et comprennent des pattes (14) pour une fixation à des pistes de la carte de circuit imprimé. 8. Coaxial electrical connector according to claim 6, characterized in that the elastic blades (13a, 13b) are separated from the body (10) of the base by insulating bodies (15) and include lugs (14) for a fixing to tracks of the printed circuit board.
EP01907674A 2000-01-24 2001-01-23 Coaxial electrical connector and assembly comprising same Expired - Lifetime EP1250731B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0000857A FR2804250B1 (en) 2000-01-24 2000-01-24 COAXIAL ELECTRICAL CONNECTOR ELEMENT AND COAXIAL ELECTRICAL CONNECTOR COMPRISING SUCH AN ELEMENT
FR0000857 2000-01-24
PCT/FR2001/000213 WO2001054234A1 (en) 2000-01-24 2001-01-23 Element for coaxial electrical connector and coaxial electrical connector comprising same

Publications (2)

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EP1250731A1 true EP1250731A1 (en) 2002-10-23
EP1250731B1 EP1250731B1 (en) 2003-06-11

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US (1) US6572406B2 (en)
EP (1) EP1250731B1 (en)
JP (1) JP2003520414A (en)
CN (1) CN1193466C (en)
AT (1) ATE242922T1 (en)
AU (1) AU2001235585A1 (en)
CZ (1) CZ20021883A3 (en)
DE (2) DE1250731T1 (en)
FR (1) FR2804250B1 (en)
WO (1) WO2001054234A1 (en)

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JP5373757B2 (en) * 2010-12-22 2013-12-18 日本航空電子工業株式会社 connector
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JP2014045262A (en) * 2012-08-24 2014-03-13 Sharp Corp Radio communication device, rf test probe and rf test connector
JP6247592B2 (en) * 2014-05-12 2017-12-13 ホシデン株式会社 Male connector, female connector and connection structure between male connector and female connector

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WO2001054234A1 (en) 2001-07-26
DE60100358D1 (en) 2003-07-17
JP2003520414A (en) 2003-07-02
DE1250731T1 (en) 2003-03-20
EP1250731B1 (en) 2003-06-11
FR2804250B1 (en) 2002-05-31
CZ20021883A3 (en) 2003-03-12
FR2804250A1 (en) 2001-07-27
US6572406B2 (en) 2003-06-03
ATE242922T1 (en) 2003-06-15
CN1193466C (en) 2005-03-16
US20020173200A1 (en) 2002-11-21
AU2001235585A1 (en) 2001-07-31
DE60100358T2 (en) 2004-04-29
CN1386314A (en) 2002-12-18

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