EP0038745A1 - Assembly comprising a terminal and a plug for cooperation with the terminal to make a connection to a circuit on which the terminal is mounted, without interruption of the circuit - Google Patents

Assembly comprising a terminal and a plug for cooperation with the terminal to make a connection to a circuit on which the terminal is mounted, without interruption of the circuit Download PDF

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Publication number
EP0038745A1
EP0038745A1 EP81400587A EP81400587A EP0038745A1 EP 0038745 A1 EP0038745 A1 EP 0038745A1 EP 81400587 A EP81400587 A EP 81400587A EP 81400587 A EP81400587 A EP 81400587A EP 0038745 A1 EP0038745 A1 EP 0038745A1
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EP
European Patent Office
Prior art keywords
housing
switch
bypass
socket
contact elements
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
EP81400587A
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German (de)
French (fr)
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EP0038745B1 (en
Inventor
Louis Astier
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Publication of EP0038745A1 publication Critical patent/EP0038745A1/en
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Publication of EP0038745B1 publication Critical patent/EP0038745B1/en
Expired 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
    • 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
    • H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
    • H01R13/7031—Shorting, shunting or bussing of different terminals interrupted or effected on engagement of coupling part, e.g. for ESD protection, line continuity
    • H01R13/7033—Shorting, shunting or bussing of different terminals interrupted or effected on engagement of coupling part, e.g. for ESD protection, line continuity making use of elastic extensions of the terminals
    • 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
    • H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
    • 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
    • H01R13/64—Means for preventing incorrect coupling

Definitions

  • the subject of the present invention is a terminal assembly and plug-in socket on the terminal to be connected to a circuit on which the terminal is mounted, without opening the circuit.
  • a particular field of application of the invention is that of measurements to be made on a secondary of an intensity transformer, for example in the event of the appearance of faults.
  • the terminal is permanently mounted on the secondary of the current transformer, the switch being normally closed.
  • An intensity measuring device can then be connected in series to the secondary by means of the socket, without the secondary is open at any time, which would be damaging for the current transformer.
  • Terminal and plug devices of the type defined above are well known in the art. However, it turns out that these devices are not always suitable for the application envisaged above, in particular when the sockets are handled without particular precautions and with a certain precipitation - as in the case of an intensity measurement following the appearance of a fault - and when the current flows with a relatively high intensity under a low voltage.
  • the actuating element is often made in the form of a finger or a rod of insulating material to push back a piece in the form of a bar which normally short circuits two fixed contacts of the switch being recalled in the closed position by a spring.
  • bypass contacts are of the pin and socket type and have a quality which deteriorates over time.
  • the object of the present invention is to provide a robust assembly capable of being handled without particular precautions, with reliable contacts of unalterable quality both for the terminal switch and for the bypass contacts, this in order to avoid, in in the case of an application to a secondary current transformer operating at low voltage, any deterioration of the transformer due to poor contacts.
  • the present invention also aims to bring these advantages with a structure as simple and inexpensive as possible.
  • the robustness and simplicity of the device according to the invention are due to the use of a wide push-button carrying the second elements of the bypass contacts and to the absence of return springs.
  • the quality of the contacts results from the choice, for the switch, of a pressure contact, with contact elements such as pads, one of which is carried by a flexible blade, and, for the taps, of sliding contacts.
  • the assembly represented in FIG. 1 comprises a terminal 10 mounted on a circuit 11, 'for example the secondary of an intensity transformer (not shown) and a socket 30 connected by conductors 31, 32 to a measuring device , for example an ammeter (not shown).
  • Terminal 10 comprises a body 12 of insulating material, for example obtained by molding a synthetic resin.
  • a housing 13 opening towards the outside is formed in the body 12.
  • a switch 14 comprising two contact elements 15, 16 fixed to the ends of conductive strips 17, 18.
  • the contact elements 15, 16 are preferably silver pads welded to the strips 17, 18.
  • the blade 17 is embedded in the insulating material with the exception of its end carrying the patch 15.
  • the blade 18 is embedded in the insulating material of the body 12 with the exception of the section 18a located on the side of the bearing end the patch 16. At their other ends, the blades 17, 18 protrude from the body 12 for connection to the circuit 11.
  • the contact elements 15, 16 are housed in a recess 19 formed on one side 13a of the housing 13.
  • a shoulder 21 from which protrudes the section 18a of the blade 18 substantially parallel to the bottom of the housing 13 near this bottom.
  • the section 18a forms an elastic blade applying pressure with the contact element 16 against the contact element 15.
  • the blades 17, 18 are arched and have parts 17b, 18b which extend substantially parallel along the sides 13a, 13b of the housing 13, within the material of the body 12.
  • the contact elements 22, 23 can advantageously be formed by folded parts of the blades 17, 18 projecting from the material of the body 12 inside the housing 13 on each side 13a, 13b thereof.
  • the socket 30 comprises a body 33, also made of insulating material, the front part 34 of which forms a pusher of width slightly less than that of the housing 13 and the rear part 35 of which has a width substantially equal to that of the housing 13.
  • a body 33 also made of insulating material, the front part 34 of which forms a pusher of width slightly less than that of the housing 13 and the rear part 35 of which has a width substantially equal to that of the housing 13.
  • grooves 36, 37 are formed at the level of the junction of the parts 34 and 35 of the body 33, on each side of the latter.
  • Metal blades 38, 39 are partially embedded in the body 33. At one of their ends, the blades 38, 39 are electrically connected to the conductors 31, 32 at the rear of the socket 30.
  • the blades 38, 39 have parts 38a, 39a which project on two opposite sides 34a, 34b of the pusher 34 and are bent towards the rear of the socket with their ends 38b, 39b housed in the grooves 36, 37.
  • the parts 38a, 39a forming second bypass contact elements are held in position against the stress which tends to separate them laterally of the pusher 34.
  • the pusher 34 is asymmetrical and has an inclined front edge with a top 40 located near the side 34a.
  • the plug 30 When the plug 30 is inserted into the housing 13, it is guided by its rear part 35 sliding between the sides 13a, 13b.
  • the blades 38, 39 come into contact with the elements 22, 23 before the end 40 of the pusher touches the elastic blade 18a ( Figure 1).
  • the elements 22, 23 slightly repel the parts 38a, 39a and constitute with them two bypass contacts of the sliding and pressure type due to the stress to which the curved parts 38a, 3.9a of the blades 38, 39 are subjected.
  • the top 40 comes into contact with the elastic blade 18a near the switch.
  • the elastic blade extending transversely with respect to the direction of insertion of the socket, it is pushed back by the pusher 34.
  • the switch 14 is open and the elements of contact 22, 23 are located at the notches 41, 42 formed on the blades 38, 39 so as to maintain the grip 30 in the terminal 10.
  • the switch 14 closes before the opening of the bypass contacts. Any opening of the circuit 30 is thus avoided both during the connection and during the disconnection of the socket 30.
  • the flexible blade 18a and the blade parts 17b, 18b form a U which constitutes part of a loop which closes by the bypass contacts and has the effect of promoting the return of the flexible blade 18a in the closed position.
  • the arm flexible 18a under the effect of its tension, passes from a rectilinear shape to the arc shape and the substantially spherical contact pads roll on each other, which has the effect of automatically cleaning the contacts of the switch 14.
  • the bypass contacts they are also self-cleaning because they are sliding contacts.
  • the shoulder 21 forms a polarizing key against which the wedge 40 abuts, without being able to open the switch 14 when the socket is in an inverted position relative to its normal position.
  • a polarizing device by conferring on the rear part of the socket and at the entrance of the terminal housing corresponding asymmetrical shapes which do not allow the fully depress the plug only if it is in the correct position.
  • the assembly according to the invention is particularly simple and inexpensive because it comprises a minimum of parts. It can also operate in a wide power range.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Push-Button Switches (AREA)

Abstract

La borne (20) comprend un logement (13) au fond duquel est logé un interrupteur (14) du type à pression rappelé en position de fermeture par lame élastique (18a) et deux premiers éléments de contacts de dérivation (22,23) faisant saillie sur deux côtés (13a,13b) du logement; la prise (30) est guidée entre les côtés (13a,13b) et présente un poussoir large (34) qui porte latéralement des seconds éléments de contacts de dérivation (28a,29b) venant en contact avec les premiers avant que l'extrémité du poussoir (40) ouvre l'interrupteur (14) en repoussant la lame élastique (18a), de façon que la continuité du circuit (11) sur lequel la borne (10) est montée soit préservée lors de la connexion ou de la déconnexion de la prise (30).The terminal (20) comprises a housing (13) at the bottom of which is housed a switch (14) of the pressure type recalled in the closed position by elastic blade (18a) and two first bypass contact elements (22,23) making projection on two sides (13a, 13b) of the housing; the socket (30) is guided between the sides (13a, 13b) and has a wide pusher (34) which laterally carries second bypass contact elements (28a, 29b) coming into contact with the first before the end of the pusher (40) opens the switch (14) by pushing the elastic blade (18a), so that the continuity of the circuit (11) on which the terminal (10) is mounted is preserved during connection or disconnection of the socket (30).

Description

La présente invention a pour objet un ensemble formant borne et prise enfichable sur la borne pour être raccordée à un circuit sur lequel la borne est montée, sans ouverture du circuit.The subject of the present invention is a terminal assembly and plug-in socket on the terminal to be connected to a circuit on which the terminal is mounted, without opening the circuit.

Plus particulièrement, la présente invention a pour objet un tel ensemble dans lequel :

  • - la borne comprend un logement ouvert vers l'extérieur ; un interrupteur destiné à être monté en série sur le circuit, disposé au voisinage du fond du logement et rappelé en position de fermeture par urefor- ce de rappel élastique ; et deux premiers éléments de contacts de dérivation reliés respectivement aux bornes de l'interrupteur, et
  • - la prise comprend un élément d'actionnement ouvrant l'interrupteur à l'encontre de la force de rappel élastique lorsque la prise est enfoncée dans le logement, et deux seconds éléments de contacts de dérivation chacun venant en contact avec un premier élément de contact de dérivation respectif pour un enfoncement de la prise moindre que celui nécessaire à l'ouverture de l'interrupteur, la prise étant ainsi connectée en dérivation aux bornes de l'interrupteur, ou déconnectée, sans ouverture du circuit.
More particularly, the subject of the present invention is such an assembly in which:
  • - the terminal includes a housing open to the outside; a switch intended to be mounted in series on the circuit, arranged in the vicinity of the bottom of the housing and returned to the closed position by elastic return urefor- ce; and two first branch contact elements connected respectively to the terminals of the switch, and
  • the socket comprises an actuating element opening the switch against the elastic restoring force when the socket is pressed into the housing, and two second bypass contact elements each coming into contact with a first contact element respective bypass for a depression of the socket less than that necessary to open the switch, the socket being thus connected in bypass to the terminals of the switch, or disconnected, without opening the circuit.

Un domaine particulier d'application de l'invention est celui de mesures à effectuer sur un secondaire de transformateur d'intensité, par exemple en cas d'apparition de défauts. Dans ce cas, la borne est montée à demeure sur le secondaire du transformateur d'intensité, l'interrupteur étant normalement fermé. Un appareil de mesure d'intensité peut alors être branché en série sur le secondaire au moyen de la prise, sans que le secondaire soit ouvert à un quelconque moment, ce qui serait dommageable pour le transformateur d'intensité..A particular field of application of the invention is that of measurements to be made on a secondary of an intensity transformer, for example in the event of the appearance of faults. In this case, the terminal is permanently mounted on the secondary of the current transformer, the switch being normally closed. An intensity measuring device can then be connected in series to the secondary by means of the socket, without the secondary is open at any time, which would be damaging for the current transformer.

Des dispositifs formant borne et prise du type défini plus haut sont bien connus dans la technique. Il s'avère toutefois que ces dispositifs ne conviennent pas toujours pour l'application envisagée ci-dessus notamment lorsque les prises sont manipulées sans précaution particulière et avec une certaine précipitation -comme en cas de mesure d'intensité consécutive à l'apparition d'un défaut-et lorsque le courant circule avec une intensité relativement élevée sous un faible voltage. En effet, l'élément d'actionnement est souvent réalisé sous forme d'un doigt ou d'une tige en matériau isolant pour venir repousser une pièce en forme de barreau qui court- circuire normalement deux contacts fixes de l'interrupteur en étant rappelée en position de fermeture par un ressort. De telles dispositions présentent, comme inconvénients, une fragilité certaine de l'élément d'actionnement, une détérioration rapide des contacts de l'interrupteur lorsque les formes du barreau et des bornes de l'interrupteur font qu'ils sont en contact seulement linéaire ou ponctuel, et la nécessité d'avoir recours à un ressort qui peut poser des problèmes de montage et de tarage. Dans certains cas, les contacts de dérivation sont du type à broche et douille et présentent une qualité qui se détériore dans le temps.Terminal and plug devices of the type defined above are well known in the art. However, it turns out that these devices are not always suitable for the application envisaged above, in particular when the sockets are handled without particular precautions and with a certain precipitation - as in the case of an intensity measurement following the appearance of a fault - and when the current flows with a relatively high intensity under a low voltage. Indeed, the actuating element is often made in the form of a finger or a rod of insulating material to push back a piece in the form of a bar which normally short circuits two fixed contacts of the switch being recalled in the closed position by a spring. Such arrangements have, as drawbacks, a certain fragility of the actuating element, a rapid deterioration of the switch contacts when the shapes of the bar and of the switch terminals cause them to be in contact only linear or punctual, and the need to use a spring which can cause mounting and calibration problems. In some cases, the bypass contacts are of the pin and socket type and have a quality which deteriorates over time.

La présente invention a pour but de fournir un ensemble robuste susceptible d'être manipulé sans précaution particulière, avec des contacts fiables et de qualité inaltérable tant pour l'interrupteur de la borne que pour les contacts de dérivation, ceci afin d'éviter, dans le cas d'une application à un secondaire de transformateur d'intensité fonctionnant sous faible voltage, toute détérioration du transformateur due à de mauvais contacts. La présente invention a aussi pour but d'apporter ces avantages avec une structure aussi simple et bon marché que possible..The object of the present invention is to provide a robust assembly capable of being handled without particular precautions, with reliable contacts of unalterable quality both for the terminal switch and for the bypass contacts, this in order to avoid, in in the case of an application to a secondary current transformer operating at low voltage, any deterioration of the transformer due to poor contacts. The present invention also aims to bring these advantages with a structure as simple and inexpensive as possible.

Ces buts sont atteints du fait que, conformément à l'invention,

  • - l'interrupteur est constitué de deux éléments de contact dont un au moins est porté par une lame élastique et qui forment un contact par pression, et
  • - la prise est guidée entre deux côtés opposés du logement de la borne, côtés sur lesquels sont situés lesdits premiers éléments de contact de dérivation et l'élément d'actionnement forme un poussoir occupant la presque totalité de la largeur du logement et portant les seconds éléments de contact de dérivation sur deux côtés opposés de manière que chaque couple constitué par un premier et un second élément de contact de dérivation correspondants forme un contact glissant.
These objects are achieved by the fact that, according to the invention,
  • the switch consists of two contact elements, at least one of which is carried by an elastic blade and which form a pressure contact, and
  • - The socket is guided between two opposite sides of the terminal housing, sides on which said first bypass contact elements are located and the actuating element forms a pusher occupying almost the entire width of the housing and carrying the second branch contact elements on two opposite sides so that each pair of first and second corresponding branch contact elements forms a sliding contact.

La robustesse et la simplicité du dispositif selon l'invention tiennent à l'utilisation d'un poussoir large portant les seconds éléments des contacts de dérivation et à l'absence de ressorts de rappel.The robustness and simplicity of the device according to the invention are due to the use of a wide push-button carrying the second elements of the bypass contacts and to the absence of return springs.

La qualité des contacts résulte du choix, pour l'interrupteur, d'un contact à pression, avec éléments de contact tels que des pastilles, dont l'un est porté par une lame flexible, et, pour les dérivations, de contacts glissants.The quality of the contacts results from the choice, for the switch, of a pressure contact, with contact elements such as pads, one of which is carried by a flexible blade, and, for the taps, of sliding contacts.

D'autres particularités et avantages de l'ensemble conforme à l'invention ressortiront à la lecture de la description faite ci-après, à titre indicatif mais non limitatif, en référence aux dessins annexés sur lesquels :

  • - la figure 1 est une vue schématique en coupe d'un mode de réalisation d'un ensemble selon l'invention,
  • - la figure 2 montre une variante de réalisation de la borne de l'ensemble illustré par la figure 1.
Other features and advantages of the assembly according to the invention will emerge on reading the description given below, by way of indication but not limitation, with reference to the appended drawings in which:
  • FIG. 1 is a schematic sectional view of an embodiment of an assembly according to the invention,
  • - Figure 2 shows a variant of reality sation of the terminal of the assembly illustrated in FIG. 1.

L'ensemble représente sur la figure 1 comporte une borne 10 montée sur un circuit 11,'par exemple le secondaire d'un transformateur d'intensité (non représenté) et une prise 30 reliée par des conducteurs 31, 32 à un appareil de mesure, par exemple un ampèremètre (non représenté).The assembly represented in FIG. 1 comprises a terminal 10 mounted on a circuit 11, 'for example the secondary of an intensity transformer (not shown) and a socket 30 connected by conductors 31, 32 to a measuring device , for example an ammeter (not shown).

La borne 10 comprend un corps 12 en matériau isolant par exemple obtenu par moulage d'une résine synthétique. Un logement 13 s'ouvrant vers l'extérieur est formé dans le corps 12.Terminal 10 comprises a body 12 of insulating material, for example obtained by molding a synthetic resin. A housing 13 opening towards the outside is formed in the body 12.

A proximité du fond du logement 13, est disposé un interrupteur 14 comprenant deux éléments de contact 15, 16 fixés aux extrémités de lames conductrices 17, 18. Les éléments de contact 15, 16 sont de préférence des pastilles argentées soudées sur les lames 17, 18. La lame 17 est noyée dans le matériau isolant à l'exception de son extrémité portant la pastille 15. La lame 18 est noyée dans le matériau isolant du corps 12 à l'exception du tronçon 18a situé du côté de l'extrémité portant la pastille 16. A leurs autres extrémités, les lames 17, 18 font saillie hors du corps 12 pour le raccordement au circuit 11.Near the bottom of the housing 13, there is a switch 14 comprising two contact elements 15, 16 fixed to the ends of conductive strips 17, 18. The contact elements 15, 16 are preferably silver pads welded to the strips 17, 18. The blade 17 is embedded in the insulating material with the exception of its end carrying the patch 15. The blade 18 is embedded in the insulating material of the body 12 with the exception of the section 18a located on the side of the bearing end the patch 16. At their other ends, the blades 17, 18 protrude from the body 12 for connection to the circuit 11.

Comme on peut le voir sur la figure 1, les éléments de contact 15, 16 sont logés dans un renfoncement 19 formé sur un côté 13a du logement 13. Du côté 13b opposé au renfoncement 19 est prévu un épaulement 21 d'où fait saillie le tronçon 18a de la lame 18 sensiblement parallèlement au fond du logement 13 à proximité de ce fond. Le tronçon 18a forme lame élastique appliquant avec pression l'élément de contact 16 contre l'élément de contact 15.As can be seen in Figure 1, the contact elements 15, 16 are housed in a recess 19 formed on one side 13a of the housing 13. On the side 13b opposite the recess 19 is provided a shoulder 21 from which protrudes the section 18a of the blade 18 substantially parallel to the bottom of the housing 13 near this bottom. The section 18a forms an elastic blade applying pressure with the contact element 16 against the contact element 15.

Les lames 17, 18 sont cambrées et présentent des parties 17b, 18b qui s'étendent sensiblement parallèlement aux côtés 13a, 13b du logement 13, au sein du matériau du corps 12. Sur ces parties 17b, 18b, sont soudées des pastilles argentées 22, 23 formant des premiers éléments de contact de dérivation en faisant saillie dans le logement 13 sur ses côtés opposés 13a, 13b. En variante, comme le montre la figure 2, les éléments de contact 22, 23 peuvent avantageusement être formés par des parties repliées des lames 17, 18 faisant saillie hors du matériau du corps 12 à l'intérieur du logement 13 sur chaque côté 13a, 13b de celui-ci.The blades 17, 18 are arched and have parts 17b, 18b which extend substantially parallel along the sides 13a, 13b of the housing 13, within the material of the body 12. On these parts 17b, 18b, are welded silver pads 22, 23 forming first bypass contact elements protruding into the housing 13 on its opposite sides 13a, 13b. As a variant, as shown in FIG. 2, the contact elements 22, 23 can advantageously be formed by folded parts of the blades 17, 18 projecting from the material of the body 12 inside the housing 13 on each side 13a, 13b thereof.

La prise 30 comporte un corps 33, également en matériau isolant, dont la partie avant 34 forme poussoir de largeur légèrement inférieure à celle du logement 13 et dont la partie arrière 35 a une largeur sensiblement égale à celle du logement 13. Au niveau de la jonction des parties 34 et 35 du corps 33, sur chaque côté de celui-ci, sont formées des gorges 36, 37. Des lames métalliques 38, 39 sont partiellement noyées dans le corps 33. A une de leurs extrémités, les lames 38, 39 sont reliées électriquement aux conducteurs 31, 32 à l'arrière de la prise 30. A leurs autres extrémités les lames 38, 39 présentent des parties 38a, 39a qui font saillie sur deux côtés opposés 34a, 34b du poussoir 34 et sont recourbées vers l'arrière de la prise avec leurs extrémités 38b, 39b logées dans les gorges 36, 37. Ainsi, les parties 38a, 39a formant seconds éléments de contacts de dérivation sont maintenues en position à l'encontre de la contrainte qui tend à les écarter latéralement du poussoir 34.The socket 30 comprises a body 33, also made of insulating material, the front part 34 of which forms a pusher of width slightly less than that of the housing 13 and the rear part 35 of which has a width substantially equal to that of the housing 13. At the level of the junction of the parts 34 and 35 of the body 33, on each side of the latter, grooves 36, 37 are formed. Metal blades 38, 39 are partially embedded in the body 33. At one of their ends, the blades 38, 39 are electrically connected to the conductors 31, 32 at the rear of the socket 30. At their other ends the blades 38, 39 have parts 38a, 39a which project on two opposite sides 34a, 34b of the pusher 34 and are bent towards the rear of the socket with their ends 38b, 39b housed in the grooves 36, 37. Thus, the parts 38a, 39a forming second bypass contact elements are held in position against the stress which tends to separate them laterally of the pusher 34.

A son extrémité, le poussoir 34 est dissymétrique et présente un bord frontal incliné avec un sommet 40 situé à proximité du côté 34a.At its end, the pusher 34 is asymmetrical and has an inclined front edge with a top 40 located near the side 34a.

Le fonctionnement de l'ensemble représenté sur la figure 1 ou la figure 2 découle à l'évidence de ce qui précède.The operation of the assembly shown in Figure 1 or Figure 2 is evident from the above.

La prise 30 étant retirée, l'interrupteur 14 est fermé et assure la continuité-du circuit 11.The socket 30 being withdrawn, the switch 14 is closed and ensures the continuity of the circuit 11.

Lorsque la prise 30 est introduite dans le logement 13, elle est guidée par sa partie arrière 35 coulissant entre les côtés 13a, 13b.Les lames 38, 39 viennent au contact des éléments 22, 23 avant que l'extrémité 40 du poussoir touche la lame élastique 18a (figure 1). Les éléments 22, 23 repoussent légèrement les parties 38a, 39a et constituent avec celles-ci deux contacts de dérivation du type glissant et à pression du fait de la contrainte à laquelle sont soumises les parties recourbées 38a, 3.9a des lames 38, 39.When the plug 30 is inserted into the housing 13, it is guided by its rear part 35 sliding between the sides 13a, 13b. The blades 38, 39 come into contact with the elements 22, 23 before the end 40 of the pusher touches the elastic blade 18a (Figure 1). The elements 22, 23 slightly repel the parts 38a, 39a and constitute with them two bypass contacts of the sliding and pressure type due to the stress to which the curved parts 38a, 3.9a of the blades 38, 39 are subjected.

L'enfoncement de la prise 30 étant poursuivi, le sommet 40 vient au contact de la lame élastique 18a à proximité de l'interrupteur. La lame élastique s'étendant transversalement par rapport à la direction d'enfoncement de la prise, elle est repoussée par le poussoir 34. En fin de course de la prise 30 (figure 2), l'interrupteur 14 est ouvert et les éléments de contact 22, 23 se trouvent au niveau de crantages 41, 42 formés sur les lames 38, 39 de façon à assurer le maintien de la prise 30 dans la borne 10.The depression of the socket 30 being continued, the top 40 comes into contact with the elastic blade 18a near the switch. The elastic blade extending transversely with respect to the direction of insertion of the socket, it is pushed back by the pusher 34. At the end of the travel of the socket 30 (FIG. 2), the switch 14 is open and the elements of contact 22, 23 are located at the notches 41, 42 formed on the blades 38, 39 so as to maintain the grip 30 in the terminal 10.

Lorsqu'ensuite la prise 30 est retirée, l'interrupteur 14 se ferme avant l'ouverture des contacts de dérivation. Toute ouverture du circuit 30 est ainsi évitée tant lors de la connexion que lors de la déconnexion de la prise 30.When then the socket 30 is removed, the switch 14 closes before the opening of the bypass contacts. Any opening of the circuit 30 is thus avoided both during the connection and during the disconnection of the socket 30.

On notera qu'au cours du retrait de la prise 30, la lame flexible 18a et les parties de lame 17b, 18b forment un U qui constitue une partie d'une boucle qui se referme par les contacts de dérivation et a pour effet de favoriser le retour de la lame flexible 18a en position de fermeture. Au moment de ce retour, entre l'instant où les pastilles de contact se touchent et celui où la pression de contact est définitive, le bras flexible 18a, sous l'effet de sa tension, passe d'une forme rectiligine à la forme en arc et les pastilles de contact sensiblement sphériques roulent l'une sur l'autre, ce qui a pour effet de réaliser automatiquement un nettoyage des contacts de l'interrupteur 14. Quant aux contacts de dérivation, ils sont également auto-nettoyants du fait qu'il s'agit de contacts glissants.It will be noted that during the withdrawal of the grip 30, the flexible blade 18a and the blade parts 17b, 18b form a U which constitutes part of a loop which closes by the bypass contacts and has the effect of promoting the return of the flexible blade 18a in the closed position. At the time of this return, between the moment when the contact pads touch and when the contact pressure is final, the arm flexible 18a, under the effect of its tension, passes from a rectilinear shape to the arc shape and the substantially spherical contact pads roll on each other, which has the effect of automatically cleaning the contacts of the switch 14. As for the bypass contacts, they are also self-cleaning because they are sliding contacts.

On notera encore que l'épaulement 21 forme détrompeur contre lequel le coin 40 vient en butée, sans pouvoir ouvrir l'interrupteur 14 lorsque la prise est dans une position retournée par rapport à sa position normale.It will also be noted that the shoulder 21 forms a polarizing key against which the wedge 40 abuts, without being able to open the switch 14 when the socket is in an inverted position relative to its normal position.

A la place de l'épaulement 21, ou en plus de celui-ci, on pourra former un détrompeur en conférant à la partie arrière de la prise et à l'entrée du logement de la borne des formes dissymétriques correspondantes n'autorisant l'enfoncement complet de la prise que si celle-ci est dans la bonne position.Instead of the shoulder 21, or in addition to it, one can form a polarizing device by conferring on the rear part of the socket and at the entrance of the terminal housing corresponding asymmetrical shapes which do not allow the fully depress the plug only if it is in the correct position.

En plus de sa robustesse et de la fiabilité de ses contacts, on remarquera enfin que l'ensemble selon l'invention est particulièrement simple et bon marché car il comporte un minimum de pièces. Il peut en outre fonctionner dans une gamme de puissance étendue.In addition to its robustness and the reliability of its contacts, it will finally be noted that the assembly according to the invention is particularly simple and inexpensive because it comprises a minimum of parts. It can also operate in a wide power range.

Claims (10)

1. Ensemble formant borne et prise enfichable sur la borne pour être raccordée à un circuit sur lequel la borne est montée, sans ouverture de circuit , ensemble dans lequel : - la borne comprend un logement ouvert vers l'extérieur, un interrupteur destiné à être monté en série sur le circuit, disposé au voisinage du fond du logement et rappelé en position de fermeture par une force de rappel élastique, et deux premiers éléments de contacts de dérivation reliés respectivement aux bornes de l'interrupteur, et - la prise comprend un élément d'actionnement ouvrant l'interrupteur à l'encontre de la force de rappel élastique lorsque la prise est enfoncée dans le logement, et deux seconds éléments de contacts de dérivation chacun venant en contact avec un premier élément de contact de dérivation respectif pour un enfoncement de la prise moindre que celui nécessaire à l'ouverture de l'interrupteur, la prise étant ainsi connectée en dérivation aux bornes de l'interrupteur, ou déconnectée, sans ouverture du circuit ; caractérisé en ce que : - l'interrupteur (14) est constitué de deux éléments de contact (15,16) dont un au moins est porté par une lame élastique (18a) et qui forment un contact ' par pression, et - la prise (30) est guidée entre deux côtés opposés (13a,13b) du logement (13) de la borne (10), côtés sur lesquels sont situés lesdits premiers éléments de contact de dérivation (22,23) et l'élément d'actionnement (34) forme un poussoir occupant la presque totalité de la largeur du logement (13) et portant les seconds éléments de contact de dérivation (38a.39a) sur deux côtés opposés (34a,34b) de manière que chaque couple constitué par un premier et un second élément de contact de dérivation correspondants'forme un contact glissant. 1. Terminal assembly and plug-in socket on the terminal to be connected to a circuit on which the terminal is mounted, without circuit opening, assembly in which: - the terminal comprises a housing open to the outside, a switch intended to be mounted in series on the circuit, arranged in the vicinity of the bottom of the housing and returned to the closed position by an elastic return force, and two first contact elements bypass connected respectively to the terminals of the switch, and the socket comprises an actuating element opening the switch against the elastic restoring force when the socket is pressed into the housing, and two second bypass contact elements each coming into contact with a first contact element respective bypass for a depression of the socket less than that necessary to open the switch, the socket being thus connected in bypass to the terminals of the switch, or disconnected, without opening the circuit; characterized in that: the switch (14) consists of two contact elements (15, 16) at least one of which is carried by an elastic blade (18a) and which form a contact 'by pressure, and - the socket (30) is guided between two opposite sides (13a, 13b) of the housing (13) of the terminal (10), sides on which are located said first bypass contact elements (22,23) and the element actuator (34) forms a pusher occupying almost the entire width of the housing (13) and carrying the second bypass contact elements (38a.39a) on two opposite sides (34a, 34b) so that each pair formed by a first and a second corresponding bypass contact element forms a sliding contact. 2. Ensemble selon la revendication 1, caractérisé en ce que les éléments de contact (15,16) de l'interrupteur (14) sont situés sur un des côtés (13a) du logement (13), la lame flexible (18a) s'étendant au voisinage du fond du logement (13) en direction transversale par rapport à celle d'enfoncement de la prise (30), et le poussoir (34) a une forme dissymétrique avec une extrémité avant (40) située au voisinage d'un de ses côtés (34a) de manière à venir en contact avec la lame flexible (18a) au voisinage du côté (13a) du logement (13) où se trouve l'interrupteur (14).2. Assembly according to claim 1, characterized in that the contact elements (15,16) of the switch (14) are located on one of the sides (13a) of the housing (13), the flexible blade (18a) s extending in the vicinity of the bottom of the housing (13) in a transverse direction relative to that of insertion of the socket (30), and the pusher (34) has an asymmetrical shape with a front end (40) located in the vicinity of one of its sides (34a) so as to come into contact with the flexible blade (18a) in the vicinity of the side (13a) of the housing (13) where the switch (14) is located. 3. Ensemble selon la revendication 2, caractérisé en ce qu'une butée (21) est prévue au fond du logement (13) du côté (13b) opposé à celui (13a) où se trouve l'interrupteur (14) de manière à former butée d'arrêt coopérant avec l'extrémité (40) du poussoir (34) afin de limiter l'enfoncement de celui-ci lorsque la prise (30) est retournée par rapport à sa position normale.3. Assembly according to claim 2, characterized in that a stop (21) is provided at the bottom of the housing (13) on the side (13b) opposite to that (13a) where the switch (14) is located so as to form a stopper cooperating with the end (40) of the pusher (34) in order to limit the sinking of the latter when the socket (30) is returned relative to its normal position. 4. Ensemble selon l'une quelconque des revendications 2 et 3, caractérisé en ce que les éléments de contact (15,16) de l'interrupteur (14) sont disposés dans un renfoncement latéral (19) du logement (13).4. An assembly according to any one of claims 2 and 3, characterized in that the contact elements (15,16) of the switch (14) are arranged in a lateral recess (19) of the housing (13). 5. Ensemble selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les éléments de contact (15,16) de l'interrupteur (14) sont des pastilles fixées aux extrémités de lames conductrices permettant le raccordement de la borne (10) au circuit (11) et noyées en partie dans un matériau isolant (12), l'une (18) desdites lames ayant une partie libre qui forme ladite lame élastique (18a).5. An assembly according to any one of claims 1 to 4, characterized in that the contact elements (15,16) of the switch (14) are pads fixed to the ends of conductive strips allowing the connection of the terminal ( 10) to the circuit (11) and partially embedded in an insulating material (12), one (18) of said blades having a free part which forms said elastic blade (18a). 6. Ensemble selon la revendication 5, caractérisé en ce que les lames conductrices (17,18) sont cambrées et forment un U dont le fond comprend la lame flexible (18a) et dont les branches (17b,18b) portent les premiers éléments de contact de dérivation (22,23).6. An assembly according to claim 5, characterized in that the conductive blades (17,18) are arched and form a U whose bottom comprises the flexible blade (18a) and whose branches (17b, 18b) carry the first elements of bypass contact (22,23). 7. Ensemble selon l'une quelconque des revendications 5 et 6, caractérisé en ce que les premiers éléments de contacts de dérivation sont formés par des parties recourbées (22,23 - figure 2) desdites lames (17,18) qui font saillie latéralement dans ledit logement (14).7. An assembly according to any one of claims 5 and 6, characterized in that the first bypass contact elements are formed by curved parts (22,23 - Figure 2) of said blades (17,18) which project laterally in said housing (14). 8. Ensemble selon l'une quelconque des revendications 1 à 7, caractérisé en ce que les seconds éléments de contacts de dérivation (28a,29a) sont soumis à une force tendant à les appliquer vers les premiers éléments de contacts de dérivation correspondants (22, 23) pour former des contacts du type glissant et à pression.8. Assembly according to any one of claims 1 to 7, characterized in that the second bypass contact elements (28a, 29a) are subjected to a force tending to apply them towards the first corresponding bypass contact elements (22 , 23) to form sliding and pressure type contacts. 9. Ensemble selon la revendication 8, caractérisé en ce que les seconds éléments de contacts de dérivation (28a,29a) sont formés par des parties repliées de lames conductrices qui sont disposées de chaque côté du poussoir (34) et ont leurs extrémités logées dans des gorges (36,37) formées sur les côtés opposée de la prise.9. The assembly of claim 8, characterized in that the second bypass contact elements (28a, 29a) are formed by folded parts of conductive blades which are arranged on each side of the pusher (34) and have their ends housed in grooves (36,37) formed on the opposite sides of the socket. 10. Ensemble selon l'une quelconque des revendications 7 et 8, caractérisé en ce que des crantages (41,42) sont formés sur les seconds éléments de contacts de dérivation (28a,29a) au niveau des emplacements des premiers éléments de dérivation (22,23) lorsque la prise (30) est enfoncée dans le logement (13).10. An assembly according to any one of claims 7 and 8, characterized in that notches (41,42) are formed on the second bypass contact elements (28a, 29a) at the locations of the first bypass elements ( 22,23) when the plug (30) is pressed into the housing (13).
EP81400587A 1980-04-14 1981-04-13 Assembly comprising a terminal and a plug for cooperation with the terminal to make a connection to a circuit on which the terminal is mounted, without interruption of the circuit Expired EP0038745B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8008280A FR2480490A1 (en) 1980-04-14 1980-04-14 SELF-SHORTCASTING TERMINAL FOR INTENSITY TRANSFORMER CIRCUIT OR AUTOMATIC SHORT-CIRCUIT CIRCUIT
FR8008280 1980-04-14

Publications (2)

Publication Number Publication Date
EP0038745A1 true EP0038745A1 (en) 1981-10-28
EP0038745B1 EP0038745B1 (en) 1984-02-01

Family

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EP81400587A Expired EP0038745B1 (en) 1980-04-14 1981-04-13 Assembly comprising a terminal and a plug for cooperation with the terminal to make a connection to a circuit on which the terminal is mounted, without interruption of the circuit

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Country Link
US (1) US4438303A (en)
EP (1) EP0038745B1 (en)
DE (1) DE3162088D1 (en)
FR (1) FR2480490A1 (en)

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US4978310A (en) * 1989-01-17 1990-12-18 Hosiden Electronics Co., Ltd. Electrical jack connector
EP0630079A1 (en) * 1993-06-16 1994-12-21 Alcatel Cable Interface Subscriber termination device
US5664956A (en) * 1992-02-05 1997-09-09 Guglhoer; Bernhard Activator plug
EP2045886A1 (en) 2007-10-03 2009-04-08 Legrand France Combined electric connection and disconnection device

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Also Published As

Publication number Publication date
US4438303A (en) 1984-03-20
DE3162088D1 (en) 1984-03-08
FR2480490B1 (en) 1984-04-13
FR2480490A1 (en) 1981-10-16
EP0038745B1 (en) 1984-02-01

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