EP0666618B1 - Electrical coaxial connector having a switching function - Google Patents

Electrical coaxial connector having a switching function Download PDF

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Publication number
EP0666618B1
EP0666618B1 EP95400231A EP95400231A EP0666618B1 EP 0666618 B1 EP0666618 B1 EP 0666618B1 EP 95400231 A EP95400231 A EP 95400231A EP 95400231 A EP95400231 A EP 95400231A EP 0666618 B1 EP0666618 B1 EP 0666618B1
Authority
EP
European Patent Office
Prior art keywords
conductor
connector element
connector
central conductor
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.)
Expired - Lifetime
Application number
EP95400231A
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German (de)
French (fr)
Other versions
EP0666618A1 (en
Inventor
Christophe Pierre Louis Meynier
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
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Radiall SA
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Filing date
Publication date
Application filed by Radiall SA filed Critical Radiall SA
Publication of EP0666618A1 publication Critical patent/EP0666618A1/en
Application granted granted Critical
Publication of EP0666618B1 publication Critical patent/EP0666618B1/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
    • H01R24/42—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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/71—Contact members of coupling parts operating as switch, e.g. linear or rotational movement required after mechanical engagement of coupling part to establish electrical connection
    • 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
    • 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 relates to a coaxial electrical connector also performing a switching function.
  • EP-A-0 181 306 already discloses, for example, coaxial connectors which make it possible to switch an electrical line to another electrical line when the two elements of the connector are engaged one in the other.
  • Such connectors are in particular used to connect portable devices to their base while switching electronic functions of the portable device with those of the base, such as for example car radiotelephones.
  • the present invention aims to provide a simple and economical coaxial connector which performs a switching function between two power lines while ensuring good radioelectric isolation between them.
  • Such a coaxial electrical connector comprises, on the one hand, a first connector element comprising a central conductor and an external ground conductor separated by an insulator, and on the other hand, a second connector element comprising a central conductor and a conductor ground which surrounds the central conductor while being separated from the latter by an insulator, as well as a third conductor which is in electrical contact with the central conductor when the two connector elements are uncoupled, the first connector element being arranged for , when it is coupled with the second connector element, separate said central conductor and said third conductor from one another.
  • the coaxial electrical connector according to the invention is characterized in that, over most of its length, the third conductor of the second connector element is separated from the central conductor by the ground conductor.
  • the third conductor of the second connector element is arranged outside the coaxial line defined by the central conductor and the ground conductor.
  • the connector according to the invention provides good radioelectric insulation between the two power lines, one comprising the central conductor and the other the third conductor, insofar as the ground conductor separates these two lines on the largest part of the length of the second connector element.
  • the ground conductor of the second connector element comprises two sections of different configurations, namely a rear section of semi-cylindrical shape defining a partition extending from the rear face of the connector element up to the point of contact between the central conductor and the third conductor and surrounding the central conductor, and a front section of cylindrical shape defining a partition extending from said point of contact to the front face of the connector element.
  • the rear section of the ground conductor comprises an additional partition which encloses the third conductor in order to protect the electrical signal conveyed, if necessary, by this third conductor.
  • FIG. 1 shows in axial section a connector element 1 comprising a central conductor 2, a ground conductor 3 separated from the central conductor 2 by an insulator 4, and a third conductor 5.
  • the central conductor 2 is terminated at its front end by a female elastic contact 6 intended to receive the male central contact 7 of a complementary connector element 8 which is shown diagrammatically in broken lines in FIG. 1.
  • the insulator 4 extends forward in the form of a sleeve 4 a which surrounds the female elastic contact 6.
  • the ground conductor 3 surrounds the central conductor 2 over the entire length of the connector element.
  • the ground conductor 3 has a rear section T a and a front section T b which have different configurations.
  • the rear section T a of the ground conductor 3, visible in FIG. 3, comprises a lower partition 3 a of circular section and a planar upper partition 3 b , while the front section Tb of the ground conductor 3 consists only of the circular partition 3a that extends over the major part of the periphery of the connector element.
  • the third conductor 5 extends parallel to the planar upper partition 3 b of the earth conductor 3 and has a contact tab 9 cut in its width which comes to bear, in the rest position, on the female elastic contact 6 of the central conductor 2, when the two complementary connector elements 1 and 8 are uncoupled.
  • the sleeve 4 a of the insulation 4 includes a light 4 b allowing the passage of the tab 9.
  • the third conductor 5 is trapped in the insulation 4 at its rear part and free at its front part where it has a flexible zone 5 a which allows it to deform during the coupling of the two connector elements, its termination in shape spatula 5 b bearing on the chamfered front part 10 of the complementary connector element 8.
  • the contact tab 9 moves away from the central conductor 2 and opens the circuit electrical consisting of the central conductor 2 and the third conductor 5.
  • the spatula-shaped termination 5 b of the third conductor 5 can come into contact with the external ground conductor 11 of the element additional connector 8.
  • most of the length of the third conductor 5 is separated from the central conductor 2 by the ground conductor 3.
  • the ground conductor 3 'of the connector element 1' has an additional partition 3 ' c which extends the lower partition 3' a and encloses the third conductor 5 , so that the latter is also isolated from the outside.
  • the impedance of each electrical line can be precisely fixed by suitably choosing the dimension of the air gaps 12 and 13 which separate the ground conductor 3.3 ′ from the central conductor 2 and respectively from the third driver 5.

Description

La présente invention concerne un connecteur électrique coaxial réalisant également une fonction de commutation.The present invention relates to a coaxial electrical connector also performing a switching function.

On connaît déjà par exemple par EP-A-0 181 306 des connecteurs coaxiaux qui permettent de commuter une ligne électrique sur une autre ligne électrique lorsque les deux éléments du connecteur sont engagés l'un dans l'autre.EP-A-0 181 306 already discloses, for example, coaxial connectors which make it possible to switch an electrical line to another electrical line when the two elements of the connector are engaged one in the other.

De tels connecteurs sont en particulier utilisés pour brancher des appareils portatifs sur leur socle tout en commutant des fonctions électroniques de l'appareil portatif avec celles du socle, comme par exemple des radiotéléphones de voiture.Such connectors are in particular used to connect portable devices to their base while switching electronic functions of the portable device with those of the base, such as for example car radiotelephones.

Les connecteurs connus présentent l'inconvénient important de ne pas procurer une bonne isolation radioélectrique entre les deux lignes électriques à commuter.Known connectors have the significant drawback of not providing good radio isolation between the two power lines to be switched.

La présente invention vise à fournir un connecteur coaxial simple et économique qui réalise une fonction de commutation entre deux lignes électriques tout en assurant une bonne isolation radioélectrique entre ces dernières.The present invention aims to provide a simple and economical coaxial connector which performs a switching function between two power lines while ensuring good radioelectric isolation between them.

Un tel connecteur électrique coaxial comporte, d'une part, un premier élément de connecteur comprenant un conducteur central et un conducteur de masse extérieur séparés par un isolant, et d'autre part, un second 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 lorsque les deux éléments de connecteur sont désaccouplés, le premier élément de connecteur étant agencé pour, lors de son accouplement avec le second élément de connecteur, écarter l'un de l'autre ledit conducteur central et ledit troisième conducteur.Such a coaxial electrical connector comprises, on the one hand, a first connector element comprising a central conductor and an external ground conductor separated by an insulator, and on the other hand, a second connector element comprising a central conductor and a conductor ground which surrounds the central conductor while being separated from the latter by an insulator, as well as a third conductor which is in electrical contact with the central conductor when the two connector elements are uncoupled, the first connector element being arranged for , when it is coupled with the second connector element, separate said central conductor and said third conductor from one another.

Le connecteur électrique coaxial selon l'invention est caractérisé par le fait que, sur la majeure partie de sa longueur, le troisième conducteur du second élément de connecteur est séparé du conducteur central par le conducteur de masse.The coaxial electrical connector according to the invention is characterized in that, over most of its length, the third conductor of the second connector element is separated from the central conductor by the ground conductor.

En d'autres termes, le troisième conducteur du second élément de connecteur est disposé à l'extérieur de la ligne coaxiale définie par le conducteur central et le conducteur de masse.In other words, the third conductor of the second connector element is arranged outside the coaxial line defined by the central conductor and the ground conductor.

On comprend que le connecteur selon l'invention procure une bonne isolation radioélectrique entre les deux lignes électriques comprenant l'une le conducteur central et l'autre le troisième conducteur, dans la mesure où le conducteur de masse sépare ces deux lignes sur la plus grande partie de la longueur du second élément de connecteur.It is understood that the connector according to the invention provides good radioelectric insulation between the two power lines, one comprising the central conductor and the other the third conductor, insofar as the ground conductor separates these two lines on the largest part of the length of the second connector element.

Dans un mode de réalisation préféré de l'invention, le conducteur de masse du second élément de connecteur comporte deux tronçons de configurations différentes, à savoir un tronçon arrière de forme semi-cylindrique définissant une cloison s'étendant depuis la face arrière de l'élément de connecteur jusqu'au point de contact entre le conducteur central et le troisième conducteur et entourant le conducteur central, et un tronçon avant de forme cylindrique définissant une cloison s'étendant depuis ledit point de contact jusqu'à la face frontale de l'élément de connecteur.In a preferred embodiment of the invention, the ground conductor of the second connector element comprises two sections of different configurations, namely a rear section of semi-cylindrical shape defining a partition extending from the rear face of the connector element up to the point of contact between the central conductor and the third conductor and surrounding the central conductor, and a front section of cylindrical shape defining a partition extending from said point of contact to the front face of the connector element.

Dans une variante préférée de ce mode de réalisation, le tronçon arrière du conducteur de masse comporte une cloison supplémentaire qui vient enfermer le troisième conducteur afin de protéger le signal électrique véhiculé, le cas échéant, par ce troisième conducteur.In a preferred variant of this embodiment, the rear section of the ground conductor comprises an additional partition which encloses the third conductor in order to protect the electrical signal conveyed, if necessary, by this third conductor.

Dans le but de mieux faire comprendre l'invention, on va en décrire maintenant des modes de réalisation donnés à titre d'exemples non limitatifs de l'invention, en référence au dessin annexé dans lequel :

  • La figure 1 est une vue en coupe axiale d'un élément de connecteur selon un mode de réalisation,
  • La figure 2 est une vue de dessus de l'élément de connecteur de la figure 1,
  • Les figures 3 et 4 sont des vues en coupe selon III-III et respectivement IV-IV de la figure 1,
  • La figure 5 est une vue en coupe axiale d'un élément de connecteur selon un second mode de réalisation,
  • La figure 6 est une vue de dessus de la figure 5, et
  • La figure 7 est une vue en coupe selon VII-VII de la figure 6.
In order to better understand the invention, we will now describe embodiments given by way of nonlimiting examples of the invention, with reference to the accompanying drawing in which:
  • FIG. 1 is a view in axial section of a connector element according to one embodiment,
  • FIG. 2 is a top view of the connector element of FIG. 1,
  • FIGS. 3 and 4 are sectional views along III-III and respectively IV-IV of FIG. 1,
  • FIG. 5 is a view in axial section of a connector element according to a second embodiment,
  • Figure 6 is a top view of Figure 5, and
  • Figure 7 is a sectional view along VII-VII of Figure 6.

La figure 1 représente en coupe axiale un élément de connecteur 1 comportant un conducteur central 2, un conducteur de masse 3 séparé du conducteur central 2 par un isolant 4, et un troisième conducteur 5.FIG. 1 shows in axial section a connector element 1 comprising a central conductor 2, a ground conductor 3 separated from the central conductor 2 by an insulator 4, and a third conductor 5.

Le conducteur central 2 est terminé à son extrémité avant par un contact élastique femelle 6 destiné à recevoir le contact central mâle 7 d'un élément de connecteur complémentaire 8 qui est schématisé en traits interrompus sur la figure 1.The central conductor 2 is terminated at its front end by a female elastic contact 6 intended to receive the male central contact 7 of a complementary connector element 8 which is shown diagrammatically in broken lines in FIG. 1.

L'isolant 4 se prolonge vers l'avant sous la forme d'un manchon 4a qui entoure le contact élastique femelle 6.The insulator 4 extends forward in the form of a sleeve 4 a which surrounds the female elastic contact 6.

Le conducteur de masse 3 entoure le conducteur central 2 sur toute la longueur de l'élément de connecteur.The ground conductor 3 surrounds the central conductor 2 over the entire length of the connector element.

Sur les vues en coupe des figures 3 et 4, on voit que le conducteur de masse 3 comporte un tronçon arrière Ta et un tronçon avant Tb qui présentent des configurations différentes.In the sectional views of Figures 3 and 4, we see that the ground conductor 3 has a rear section T a and a front section T b which have different configurations.

Le tronçon arrière Ta du conducteur de masse 3, visible sur la figure 3, comporte une cloison inférieure 3a de section circulaire et une cloison supérieure plane 3b, tandis que le tronçon avant Tb du conducteur de masse 3 est uniquement constitué par la cloison circulaire 3a qui s'étend sur la majeure partie de la périphérie de l'élément de connecteur.The rear section T a of the ground conductor 3, visible in FIG. 3, comprises a lower partition 3 a of circular section and a planar upper partition 3 b , while the front section Tb of the ground conductor 3 consists only of the circular partition 3a that extends over the major part of the periphery of the connector element.

Le troisième conducteur 5 s'étend parallèlement à la cloison supérieure plane 3b du conducteur de masse 3 et comporte une patte de contact 9 découpée dans sa largeur qui vient prendre appui, en position de repos, sur le contact élastique femelle 6 du conducteur central 2, lorsque les deux éléments de connecteurs complémentaires 1 et 8 sont désaccouplés.The third conductor 5 extends parallel to the planar upper partition 3 b of the earth conductor 3 and has a contact tab 9 cut in its width which comes to bear, in the rest position, on the female elastic contact 6 of the central conductor 2, when the two complementary connector elements 1 and 8 are uncoupled.

A cet effet, le manchon 4a de l'isolant 4 comporte une lumière 4b permettant le passage de la patte 9.To this end, the sleeve 4 a of the insulation 4 includes a light 4 b allowing the passage of the tab 9.

Le troisième conducteur 5 est emprisonné dans l'isolant 4 à sa partie arrière et libre à sa partie avant où il comporte une zone flexible 5a qui lui permet de se déformer lors de l'accouplement des deux éléments de connecteur, sa terminaison en forme de spatule 5b prenant appui sur la partie frontale chanfreinée 10 de l'élément de connecteur complémentaire 8.The third conductor 5 is trapped in the insulation 4 at its rear part and free at its front part where it has a flexible zone 5 a which allows it to deform during the coupling of the two connector elements, its termination in shape spatula 5 b bearing on the chamfered front part 10 of the complementary connector element 8.

Lors de la déformation du troisième conducteur 5, la patte de contact 9 s'écarte du conducteur central 2 et ouvre le circuit électrique constitué par le conducteur central 2 et le troisième conducteur 5.When the third conductor 5 is deformed, the contact tab 9 moves away from the central conductor 2 and opens the circuit electrical consisting of the central conductor 2 and the third conductor 5.

Par ailleurs, lorsque les deux éléments de connecteur 1 et 8 sont engagés complètement l'un dans l'autre, la terminaison en forme de spatule 5b du troisième conducteur 5 peut venir au contact du conducteur de masse extérieur 11 de l'élément de connecteur complémentaire 8.Furthermore, when the two connector elements 1 and 8 are completely engaged one in the other, the spatula-shaped termination 5 b of the third conductor 5 can come into contact with the external ground conductor 11 of the element additional connector 8.

Conformément à l'invention, la plus grande partie de la longueur du troisième conducteur 5 est séparée du conducteur central 2 par le conducteur de masse 3.According to the invention, most of the length of the third conductor 5 is separated from the central conductor 2 by the ground conductor 3.

Ainsi, les lignes électriques comprenant respectivement le conducteur central 2 et le troisième conducteur 5 sont désaccouplées électriquement.Thus, the electrical lines respectively comprising the central conductor 2 and the third conductor 5 are electrically uncoupled.

Dans le mode de réalisation illustré aux figures 5, 6 et 7, le conducteur de masse 3' de l'élément de connecteur 1' comporte une cloison supplémentaire 3'c qui prolonge la cloison inférieure 3'a et vient enfermer le troisième conducteur 5, de sorte que ce dernier est également isolé de l'extérieur.In the embodiment illustrated in Figures 5, 6 and 7, the ground conductor 3 'of the connector element 1' has an additional partition 3 ' c which extends the lower partition 3' a and encloses the third conductor 5 , so that the latter is also isolated from the outside.

Dans ce cas, le conducteur central 2 et le troisième conducteur 5 sont néanmoins séparés par le conducteur de masse 3 dont la partie plane 3b divise le volume intérieur de l'élément de connecteur en deux parties, comme on le voit sur la vue en coupe de la figure 7.In this case, the central conductor 2 and the third conductor 5 are nevertheless separated by the ground conductor 3, the flat part 3 b of which divides the internal volume of the connector element into two parts, as seen in the view in section of figure 7.

Dans les deux modes de réalisation décrits ici, l'impédance de chaque ligne électrique peut être précisément fixée en choisissant convenablement la dimension des lames d'air 12 et 13 qui séparent le conducteur de masse 3,3' du conducteur central 2 et respectivement du troisième conducteur 5.In the two embodiments described here, the impedance of each electrical line can be precisely fixed by suitably choosing the dimension of the air gaps 12 and 13 which separate the ground conductor 3.3 ′ from the central conductor 2 and respectively from the third driver 5.

Il est bien entendu que les modes de réalisation qui viennent d'être décrits ne présentent aucun caractère limitatif et qu'ils pourront recevoir toutes modifications désirables sans sortir pour cela du cadre de l'invention tel que défini par les revendications.It is understood that the embodiments which have just been described have no limiting character and that they can receive any desirable modifications without departing from the scope of the invention as defined by the claims.

Claims (3)

  1. Coaxial electrical connector including, on the one hand, a first connector element (8) comprising a central conductor (7) and an outer earth conductor (11) which are separated by an insulator and, on the other hand, a second connector element (1) comprising a central conductor (2) and an earth conductor (3) which surrounds the central conductor, being separated from the latter by an insulator (4), as well as a third conductor (5) which is in electrical contact with the central conductor (2) when the two connector elements are unmated, the first connector element (8) being designed, while it is being mated with the second connector element (1), to move the said central conductor (2) and the said third conductor (5) away from each other, characterized in that, over the major part of its length, the third conductor (5) of the second connector element (1) is separated from the central conductor (2) by the earth conductor (3).
  2. Coaxial connector according to Claim 1, characterized in that the earth conductor of the second connector element includes a rear portion (Ta) having partitions (3a,3b) which surround the central conductor (2) and a front portion (Tb) having a single partition (3a) extending over the major part of the periphery of the said second connector element.
  3. Coaxial connector according to either of Claims 1 and 2, characterized in that the rear portion (Ta) of the earth conductor (3) includes an additional partition (3'c) which encloses the third conductor (5).
EP95400231A 1994-02-04 1995-02-03 Electrical coaxial connector having a switching function Expired - Lifetime EP0666618B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9401266 1994-02-04
FR9401266A FR2716039B1 (en) 1994-02-04 1994-02-04 Coaxial electrical connector also performing a switching function.

Publications (2)

Publication Number Publication Date
EP0666618A1 EP0666618A1 (en) 1995-08-09
EP0666618B1 true EP0666618B1 (en) 1997-07-16

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EP95400231A Expired - Lifetime EP0666618B1 (en) 1994-02-04 1995-02-03 Electrical coaxial connector having a switching function

Country Status (4)

Country Link
US (1) US5580261A (en)
EP (1) EP0666618B1 (en)
DE (2) DE666618T1 (en)
FR (1) FR2716039B1 (en)

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Also Published As

Publication number Publication date
DE69500429D1 (en) 1997-08-21
DE69500429T2 (en) 1998-02-05
EP0666618A1 (en) 1995-08-09
US5580261A (en) 1996-12-03
DE666618T1 (en) 1996-08-29
FR2716039A1 (en) 1995-08-11
FR2716039B1 (en) 1996-04-26

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