EP0884806B1 - Electrical connector with improved contact security - Google Patents

Electrical connector with improved contact security Download PDF

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Publication number
EP0884806B1
EP0884806B1 EP98401329A EP98401329A EP0884806B1 EP 0884806 B1 EP0884806 B1 EP 0884806B1 EP 98401329 A EP98401329 A EP 98401329A EP 98401329 A EP98401329 A EP 98401329A EP 0884806 B1 EP0884806 B1 EP 0884806B1
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EP
European Patent Office
Prior art keywords
parts
contact
connector
pins
insulator
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
EP98401329A
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German (de)
French (fr)
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EP0884806A2 (en
EP0884806A3 (en
Inventor
Lucien Blanchet
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.)
Amphenol Air LB GmbH
Original Assignee
Amphenol Air LB GmbH
Amphenol Air LB SAS
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Publication of EP0884806A2 publication Critical patent/EP0884806A2/en
Publication of EP0884806A3 publication Critical patent/EP0884806A3/en
Application granted granted Critical
Publication of EP0884806B1 publication Critical patent/EP0884806B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/436—Securing a plurality of contact members by one locking piece or operation
    • H01R13/4367—Insertion of locking piece from the rear
    • H01R13/4368—Insertion of locking piece from the rear comprising a temporary and a final locking position

Definitions

  • the present invention relates to an electrical connector formed of two parts intended to cooperate with each other by their respective front sides, each of said parts comprising a housing and at least one contact comprising a retaining flange and held in the housing by an insulator in which the contact is plugged in from the rear side and retained by said flange.
  • the present invention aims to provide an electrical connector of simple structure providing, by a particular conformation of the connector, increased security as to the correct insertion of the contacts in the connector parts and this makes contact security significantly improved.
  • the two parts of the insulation must be in the first position, since it is not that in this position that the retention means provided on the rear part allow the passage of the retaining flange every contact.
  • the retention means on the rear part of the insulation include, for each contact, several fingers distributed like petals on a circle, and the housing in the front part of the insulation consists of a recess of revolution able to receive said fingers.
  • said housing is connected to the hole receiving the part of the contact located in front of the retaining flange by a shoulder serving as stop for limiting the insertion depth of the contact.
  • the fingers constituting the retention means can advantageously converge towards their free end and have an interior boss between their location connection to the through hole of the rear part of the insulation and their free end. This boss constitutes a hard point which is clearly noticeable by the operator when plugging in.
  • the means for positioning the two parts of insulating it from each other in the first and in the second reciprocal positions may include latching means made in one piece with said parts.
  • Said positioning means can in particular include on one part of the insulation, a cantilever tab projecting towards the other party and carrying a tooth at its end free and on the other part two transverse notches spaced so as to allow, by bending of said tab, the snap-fastening of the tooth of this last in both of said notches.
  • Said tab can preferably be formed on one of the parts of the insulation so as to flex outwards and in such a position that this bending is prevented by the housing when the two parts of the insulation are mounted in the housing.
  • the connector as illustrated in FIG. 1 comprises a first part 1 and a second part 2, the first part 1 being here a fixed part comprising female contacts 3 and the second part 2 being a movable part carrying male contacts 4.
  • the first part 1 comprises a housing 5 in which the contacts 3 are maintained by an insulator composed of a front part 6 and a rear part 7.
  • the second part 2 comprises a housing 8 in which the contacts 4 are held by a compound insulator a front part 9 and a rear part 10.
  • the housing 8 carries by elsewhere a locking ring 11 which makes it possible to lock the two housings 5 and 8 one on the other, in the coupled position of the two connector parts 1 and 2. This locking is not part of the present invention and will not be described in more detail.
  • the two parts 6, 7 and 9, 10 of the insulation of the two connector parts 1 and 2 are intended for a round connector with two contacts.
  • the two insulating parts 6, 7 of the connector part 1 differ from the two insulating parts 9, 10 of the connector part 2, essentially by the length of the front parts 6, 9 and by the dimensions of the holes provided in these parts 6, 9 to receive, one female contacts 3 and the other male contacts 4.
  • the general structure of parts 6 and 9, 10 on the one hand and 7 and 10, on the other hand is identical, as is the way in which these parts cooperate with each other, with contacts 3, 4 and with boxes 5 and 8. This is the reason why the description that goes follow will be given only for connector part 1, i.e. for parts 3, 5, 6 and 7, but this description applies also to connector part 2, i.e. to parts 4, 8, 9 and 10, respectively.
  • Contact 3 includes, for its maintenance in the part of connector 1, a retaining flange 12 by which the contact 3 is positioned axially with respect to the two parts 6 and 7.
  • the front part 6 has, for each contact 3, an axial hole 13 which receives the part of contact 3 located in front of the flange 12, this hole 13 connecting at the rear, by a shoulder 14, to a tapered enlargement 15.
  • the front part 6 comprises a cylindrical front portion 16 to which it is connected, towards the rear, via a shoulder 17, a portion 18 cylindrical of increased diameter, carrying three bosses 19 distributed at 120 ° from each other.
  • three legs 20 in overhangs protrude rearward, each of these legs 19 bearing at its free end an inner tooth 21 of trapezoidal shape.
  • the rear part 7 comprises, for each contact 3, a hole for cylindrical passage 22 extended forwards by four fingers 23 in cantilevered.
  • the diameter of the hole 22 is very slightly greater than the diameter of the collar 12 of the contacts 3 and the fingers 23 converge so that the reciprocal distance of the fingers 23 opposite to the free ends of the latter, corresponds substantially to the diameter of the part of contact 3 located behind the flange 12.
  • Each finger 23 also has, on the inner side, a boss 24 between its connection to the rear part 7 and its free end.
  • the rear part 7 has a lateral surface cylindrical having the same diameter as the portion 18 of the portion before 6, but with three notches 25 which correspond to the three legs 20 of the front part 6 and have a notch 26 whose profile corresponds to the shape of the tooth 21, and a rear flank 27.
  • the rear part 7 has, in its lateral surface outside, in three places offset from the notches 25, three locking tabs 28 projecting rearwardly and having an outer shoulder 29 by which the legs 28 can be supported in a groove 30 of the housing 5 in the position according to Figure 1, position in which the cylindrical portion 16 of the front part 6 is fully engaged in the front portion 31 cylindrical housing 5, its shoulder 17 bearing against a shoulder 32 of the housing 5.
  • the two parts 6 and 7 of the insulation are spaced from each other, this position being defined by latching of tooth 21 of lugs 20 of part 6 in notch 26 notches 25 of part 7.
  • the fingers 23 are clear of housing 15.
  • Contacts 3 can be engaged from the rear, through the holes 22 of the rear part 7 until the flanges 12 come to bear against the bosses 24 of the fingers 23 ( Figure 4), which constitute a clearly perceptible hard point.
  • the two connector parts 1 and 2 can be coupled and locked in the coupled state using the ring 11, as illustrated by figure 1.
  • the connector part 1 could comprise by example of male contacts instead of female contacts, or male contacts and female contacts, the other connector part 2 with additional contacts.
  • the connector could also be a non-circular connector and the number of contacts could be different from two.
  • a considerable advantage of the embodiment shown and described consists in the fact that all parts of the connector and particular the two parts 6, 7 and 9, 10 of each connector part 1, 2, can be made of plastic by simple molding, without resuming machining. Each connector half is made up like this a minimum number of simple manufacturing parts, which reduces the cost of the connector as a whole.

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  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Description

La présente invention se rapporte à un connecteur électrique formé de deux parties destinées à coopérer l'une avec l'autre par leurs côtés avant respectifs, chacune desdites parties comprenant un boítier et au moins un contact comportant une collerette de retenue et maintenu dans le boítier par un isolant dans lequel le contact est enfiché depuis le côté arrière et retenu par ladite collerette.The present invention relates to an electrical connector formed of two parts intended to cooperate with each other by their respective front sides, each of said parts comprising a housing and at least one contact comprising a retaining flange and held in the housing by an insulator in which the contact is plugged in from the rear side and retained by said flange.

Pour la structure générale de tels connecteurs, ainsi que de leurs contacts qui peuvent, par exemple, être directement fixés aux extrémités des conducteurs à connecter, il est possible de se référer par exemple aux documents FR-A-2 115 556 et FR-A-2 575 912.For the general structure of such connectors, as well as their contacts which can, for example, be directly attached to ends of the conductors to be connected, it is possible to refer for example in documents FR-A-2 115 556 and FR-A-2 575 912.

Un problème qui se pose avec de tels connecteurs concerne l'assurance que les contacts sont correctement enfichés dans les parties de connecteurs. En effet, malgré tous les contrôles possibles dits de continuité électrique, il s'avère qu'il subsiste encore toujours, sur de tels connecteurs, des mauvais contacts qui sont dus essentiellement à des contacts incomplètement enfichés, donnant lieu, en fonctionnement, sous l'effet de vibrations, à des microcoupures se manifestant sous forme de défauts aléatoires, dont la localisation est extrêmement difficile.One problem with such connectors is ensuring that the contacts are correctly inserted in the parts connectors. Indeed, despite all the possible so-called controls electrical continuity, it turns out that it still still exists, on such connectors, bad contacts which are mainly due to incomplete plug-in contacts, giving rise, in operation, under the effect of vibrations, to micro-cuts manifesting in the form of random faults, the location of which is extremely difficult.

C'est la raison pour laquelle la présente invention a pour but de fournir un connecteur électrique de structure simple procurant, par une conformation particulière du connecteur, une sécurité accrue quant à l'enfichage correct des contacts dans les parties de connecteur et de ce fait une sécurité de contact nettement améliorée.This is the reason why the present invention aims to provide an electrical connector of simple structure providing, by a particular conformation of the connector, increased security as to the correct insertion of the contacts in the connector parts and this makes contact security significantly improved.

Le connecteur électrique conforme à l'invention, définit par la revendication 1, est formé de deux parties destinées à coopérer l'une avec l'autre par leurs côtés avant respectifs, chacune desdites parties comprenant un boítier et au moins un contact comportant une collerette de retenue et maintenu dans le boítier par un isolant dans lequel le contact est enfiché depuis le côté arrière et retenu par ladite collerette. L'isolant est divisé transversalement à la direction d'enfichage du contact en une partie avant et une partie arrière comprenant des moyens de positionnement permettant de les maintenir dans une première position réciproque dans laquelle elles sont espacées l'une de l'autre et dans une seconde position réciproque dans laquelle elles sont rapprochées l'une de l'autre. La partie arrière comporte, pour chaque contact, des moyens de rétention permettant le passage de la collerette du contact en subissant une déformation élastique à leur franchissement par la collerette. La partie avant comporte, pour chaque contact, des moyens de condamnation qui sont conçus de manière à

  • a) ne pas agir sur les moyens de rétention de la partie arrière dans ladite première position, et
  • b) à coopérer avec les moyens de rétention de la partie arrière pour
  • b1) interdire le passage de ladite première position à ladite seconde position lorsqu'une collerette de retenue d'un contact n'a franchi que partiellement les moyens de rétention de la partie arrière, et
  • b2) interdire à une collerette de retenue d'un contact de franchir les moyens de rétention de la partie arrière dans ladite seconde position.
    • The electrical connector according to the invention, defined by claim 1, is formed of two parts intended to cooperate with each other by their respective front sides, each of said parts comprising a housing and at least one contact comprising a flange retaining and held in the housing by an insulator in which the contact is plugged in from the rear side and retained by said flange. The insulator is divided transversely to the direction of insertion of the contact into a front part and a rear part comprising positioning means making it possible to maintain them in a first reciprocal position in which they are spaced from one another and in a second reciprocal position in which they are brought together. The rear part comprises, for each contact, retention means allowing passage of the contact flange while undergoing an elastic deformation when they are crossed by the flange. The front part comprises, for each contact, locking means which are designed so as to
  • a) not act on the means for retaining the rear part in said first position, and
  • b) to cooperate with the retention means of the rear part for
  • b1) prohibiting the passage from said first position to said second position when a contact retaining flange has only partially crossed the retaining means of the rear part, and
  • b2) prohibiting a contact retaining flange from crossing the retention means of the rear part in said second position.

    • Ainsi, pour permettre l'enfichage des contacts dans les parties du connecteur conforme à l'invention, les deux parties de l'isolant doivent obligatoirement se trouver dans la première position, puisque ce n'est que dans cette position que les moyens de rétention prévus sur la partie arrière permettent le passage de la collerette de retenue de chaque contact. Du fait que le franchissement des moyens de rétention par la collerette de retenue du contact implique une déformation élastique des moyens de rétention, ce franchissement est nettement perceptible pour l'opérateur. Ce n'est qu'ensuite, dans un deuxième temps, que l'opérateur amène les deux parties de l'isolant à la seconde position, ce passage de la première à la seconde position n'étant possible qu'à condition que les collerettes de retenue aient complètement franchi les moyens de rétention.Thus, to allow the insertion of the contacts in the parts of the connector according to the invention, the two parts of the insulation must must be in the first position, since it is not that in this position that the retention means provided on the rear part allow the passage of the retaining flange every contact. The fact that the crossing of means of detention by the contact retaining flange implies a deformation elastic retention means, this crossing is clearly noticeable to the operator. Only then, in a second time, that the operator brings the two parts of the insulation to the second position, this transition from the first to the second position not being possible as long as the retaining flanges have completely crossed the means of retention.

    De préférence, les moyens de rétention sur la partie arrière de l'isolant comprennent, pour chaque contact, un trou de passage pour le contact avec sa collerette de retenue et au moins un doigt flexible s'étendant depuis ledit trou en direction de la partie avant de manière que ledit doigt subisse une flexion élastique au passage de la collerette de retenue. Les moyens de condamnation sur la partie avant de l'isolant comprennent pour chaque contact un trou dans ladite partie pour recevoir la partie du contact située en avant de la collerette de retenue et, en arrière de ce trou, un logement conformé de manière

  • a) à pouvoir recevoir ledit doigt uniquement lorsque le doigt n'est pas déformé par une collerette de retenue d'un contact, et
  • b) à immobiliser le doigt à l'état non déformé lorsqu'il y est engagé.
    • Preferably, the retention means on the rear part of the insulation include, for each contact, a through hole for contact with its retaining flange and at least one flexible finger extending from said hole towards the part before so that said finger undergoes elastic bending in the passage of the retaining flange. The locking means on the front part of the insulation include for each contact a hole in said part to receive the part of the contact located in front of the retaining flange and, behind this hole, a housing shaped so
  • a) being able to receive said finger only when the finger is not deformed by a contact retaining flange, and
  • b) immobilizing the finger in the non-deformed state when it is engaged therein.

    • Suivant un mode de réalisation préféré, les moyens de rétention sur la partie arrière de l'isolant comprennent, pour chaque contact, plusieurs doigts répartis à la manière de pétales sur un cercle, et le logement dans la partie avant de l'isolant est constitué par un évidement de révolution pouvant recevoir lesdits doigts.According to a preferred embodiment, the retention means on the rear part of the insulation include, for each contact, several fingers distributed like petals on a circle, and the housing in the front part of the insulation consists of a recess of revolution able to receive said fingers.

    De préférence, ledit logement se raccorde au trou recevant la partie du contact située en avant de la collerette de retenue par un épaulement servant de butée de limitation de la profondeur d'enfichage du contact.Preferably, said housing is connected to the hole receiving the part of the contact located in front of the retaining flange by a shoulder serving as stop for limiting the insertion depth of the contact.

    Les doigts constituant les moyens de rétention peuvent avantageusement converger en direction de leur extrémité libre et comporter un bossage intérieur entre leur emplacement de raccordement au trou de passage de la partie arrière de l'isolant et leur extrémité libre. Ce bossage constitue un point dur qui est nettement perceptible par l'opérateur lors de l'enfichage.The fingers constituting the retention means can advantageously converge towards their free end and have an interior boss between their location connection to the through hole of the rear part of the insulation and their free end. This boss constitutes a hard point which is clearly noticeable by the operator when plugging in.

    De préférence, les moyens de positionnement des deux parties de l'isolant l'une par rapport à l'autre dans la première et dans la seconde positions réciproques, peuvent comprendre des moyens d'encliquetage réalisés d'une seule pièce avec lesdites parties.Preferably, the means for positioning the two parts of insulating it from each other in the first and in the second reciprocal positions, may include latching means made in one piece with said parts.

    Lesdits moyens de positionnement peuvent en particulier comprendre sur l'une des parties de l'isolant, une patte en porte-à-faux faisant saillie vers l'autre partie et portant une dent à son extrémité libre et sur l'autre partie deux crans transversaux espacés de manière à permettre, par flexion de ladite patte, l'encliquetage de la dent de cette dernière dans l'un et l'autre desdits crans.Said positioning means can in particular include on one part of the insulation, a cantilever tab projecting towards the other party and carrying a tooth at its end free and on the other part two transverse notches spaced so as to allow, by bending of said tab, the snap-fastening of the tooth of this last in both of said notches.

    Ladite patte peut de préférence être formée sur l'une des parties de l'isolant de manière à fléchir vers l'extérieur et dans une position telle que cette flexion soit empêchée par le boítier lorsque les deux parties de l'isolant sont montées dans le boítier.Said tab can preferably be formed on one of the parts of the insulation so as to flex outwards and in such a position that this bending is prevented by the housing when the two parts of the insulation are mounted in the housing.

    En se référant aux dessins annexés, on va décrire ci-après plus en détail un mode de réalisation illustratif et non limitatif d'un connecteur conforme à l'invention; sur les dessins :

  • la figure 1 est une section axiale d'un connecteur conforme à l'invention, dans la position de verrouillage des deux parties de connecteur l'une sur l'autre;
  • les figures 2 et 3 sont des vues en perspective des deux parties de l'isolant de chacune des deux parties de connecteur, sans les boítiers et sans les contacts;
  • la figure 4 est une section axiale des deux parties de l'isolant des deux parties de connecteur, les parties arrière de l'isolant se trouvant en position reculée et les collerettes de retenue des contacts n'ayant pas encore franchi les doigts de rétention;
  • la figure 5 est une section analogue à celle de la figure 4, après franchissement des doigts de rétention par les collerettes de retenue des contacts;
  • la figure 6 est une section analogue aux figures 4 et 5, les parties arrière de l'isolant se trouvant en position avancée.
    • Referring to the accompanying drawings, there will be described below in more detail an illustrative and nonlimiting embodiment of a connector according to the invention; on the drawings:
  • Figure 1 is an axial section of a connector according to the invention, in the locking position of the two connector parts one on the other;
  • Figures 2 and 3 are perspective views of the two parts of the insulation of each of the two connector parts, without the housings and without the contacts;
  • Figure 4 is an axial section of the two parts of the insulation of the two connector parts, the rear parts of the insulation being in the retracted position and the contact retaining flanges having not yet crossed the retention fingers;
  • Figure 5 is a section similar to that of Figure 4, after crossing the retaining fingers by the contact retaining flanges;
  • Figure 6 is a section similar to Figures 4 and 5, the rear parts of the insulation being in the advanced position.

    • Le connecteur tel qu'illustré par la figure 1 comprend une première partie 1 et une seconde partie 2, la première partie 1 étant ici une partie fixe comportant des contacts femelles 3 et la seconde partie 2 étant une partie mobile portant des contacts mâles 4.The connector as illustrated in FIG. 1 comprises a first part 1 and a second part 2, the first part 1 being here a fixed part comprising female contacts 3 and the second part 2 being a movable part carrying male contacts 4.

    La première partie 1 comprend un boítier 5 dans lequel les contacts 3 sont maintenus par un isolant composé d'une partie avant 6 et d'une partie arrière 7.The first part 1 comprises a housing 5 in which the contacts 3 are maintained by an insulator composed of a front part 6 and a rear part 7.

    De façon correspondante, la seconde partie 2 comprend un boítier 8 dans lequel les contacts 4 sont maintenus par un isolant composé d'une partie avant 9 et d'une partie arrière 10. Le boítier 8 porte par ailleurs une bague de verrouillage 11 qui permet de verrouiller les deux boítiers 5 et 8 l'un sur l'autre, en position accouplée des deux parties de connecteur 1 et 2. Ce verrouillage ne relève pas de la présente invention et ne sera pas décrit plus en détail. Correspondingly, the second part 2 comprises a housing 8 in which the contacts 4 are held by a compound insulator a front part 9 and a rear part 10. The housing 8 carries by elsewhere a locking ring 11 which makes it possible to lock the two housings 5 and 8 one on the other, in the coupled position of the two connector parts 1 and 2. This locking is not part of the present invention and will not be described in more detail.

    Tel que cela apparaít sur les figures 2 et 3, les deux parties 6, 7 et 9, 10 de l'isolant des deux parties de connecteur 1 et 2 sont destinées à un connecteur rond à deux contacts.As shown in Figures 2 and 3, the two parts 6, 7 and 9, 10 of the insulation of the two connector parts 1 and 2 are intended for a round connector with two contacts.

    Les deux parties d'isolant 6, 7 de la partie de connecteur 1 diffèrent des deux parties d'isolant 9, 10 de la partie de connecteur 2, essentiellement par la longueur des parties avant 6, 9 et par les dimensions des trous prévus dans ces parties 6, 9 pour recevoir, l'une des contacts femelles 3 et l'autre des contacts mâles 4. A part ces différences, la structure générale des parties 6 et 9, 10 d'une part et 7 et 10, d'autre part, est identique, de même que la manière dont ces parties coopèrent l'une avec l'autre, avec les contacts 3, 4 et avec les boítiers 5 et 8. C'est la raison pour laquelle la description qui va suivre sera donnée uniquement pour la partie de connecteur 1, c'est-à-dire pour les pièces 3, 5, 6 et 7, mais cette description s'applique également à la partie de connecteur 2, c'est-à-dire aux pièces 4, 8, 9 et 10, respectivement.The two insulating parts 6, 7 of the connector part 1 differ from the two insulating parts 9, 10 of the connector part 2, essentially by the length of the front parts 6, 9 and by the dimensions of the holes provided in these parts 6, 9 to receive, one female contacts 3 and the other male contacts 4. Apart from these differences, the general structure of parts 6 and 9, 10 on the one hand and 7 and 10, on the other hand, is identical, as is the way in which these parts cooperate with each other, with contacts 3, 4 and with boxes 5 and 8. This is the reason why the description that goes follow will be given only for connector part 1, i.e. for parts 3, 5, 6 and 7, but this description applies also to connector part 2, i.e. to parts 4, 8, 9 and 10, respectively.

    Le contact 3 comporte, pour son maintien dans la partie de connecteur 1, une collerette de retenue 12 grâce à laquelle le contact 3 est positionné axialement par rapport aux deux parties 6 et 7.Contact 3 includes, for its maintenance in the part of connector 1, a retaining flange 12 by which the contact 3 is positioned axially with respect to the two parts 6 and 7.

    La partie avant 6 présente, pour chaque contact 3, un trou axial 13 qui reçoit la partie du contact 3 située en avant de la collerette 12, ce trou 13 se raccordant à l'arrière, par un épaulement 14, à un élargissement tronconique 15. Extérieurement, la partie avant 6 comprend une portion antérieure 16 cylindrique à laquelle se raccorde, vers l'arrière, par l'intermédiaire d'un épaulement 17, une portion 18 cylindrique de diamètre accru, portant trois bossages 19 répartis à 120° les uns des autres. A l'endroit des bossages 19, trois pattes 20 en porte-à-faux font saillie vers l'arrière, chacune de ces pattes 19 portant à son extrémité libre une dent intérieure 21 de forme trapézoïdale.The front part 6 has, for each contact 3, an axial hole 13 which receives the part of contact 3 located in front of the flange 12, this hole 13 connecting at the rear, by a shoulder 14, to a tapered enlargement 15. Externally, the front part 6 comprises a cylindrical front portion 16 to which it is connected, towards the rear, via a shoulder 17, a portion 18 cylindrical of increased diameter, carrying three bosses 19 distributed at 120 ° from each other. At the location of the bosses 19, three legs 20 in overhangs protrude rearward, each of these legs 19 bearing at its free end an inner tooth 21 of trapezoidal shape.

    La partie arrière 7 comporte, pour chaque contact 3, un trou de passage 22 cylindrique prolongé vers l'avant par quatre doigts 23 en porte-à-faux. Le diamètre du trou 22 est très légèrement supérieur au diamètre de la collerette 12 des contacts 3 et les doigts 23 convergent de manière que la distance réciproque des doigts 23 opposée, aux extrémités libres de ces derniers, corresponde sensiblement au diamètre de la partie du contact 3 située en arrière de la collerette 12. Chaque doigt 23 comporte par ailleurs, sur le côté intérieur, un bossage 24 entre son raccordement à la partie arrière 7 et son extrémité libre.The rear part 7 comprises, for each contact 3, a hole for cylindrical passage 22 extended forwards by four fingers 23 in cantilevered. The diameter of the hole 22 is very slightly greater than the diameter of the collar 12 of the contacts 3 and the fingers 23 converge so that the reciprocal distance of the fingers 23 opposite to the free ends of the latter, corresponds substantially to the diameter of the part of contact 3 located behind the flange 12. Each finger 23 also has, on the inner side, a boss 24 between its connection to the rear part 7 and its free end.

    Extérieurement, la partie arrière 7 présente une surface latérale cylindrique ayant le même diamètre que la portion 18 de la partie avant 6, mais avec trois encoches 25 qui correspondent aux trois pattes 20 de la partie avant 6 et présentent un cran 26 dont le profil correspond à la forme de la dent 21, et un flanc arrière 27.Externally, the rear part 7 has a lateral surface cylindrical having the same diameter as the portion 18 of the portion before 6, but with three notches 25 which correspond to the three legs 20 of the front part 6 and have a notch 26 whose profile corresponds to the shape of the tooth 21, and a rear flank 27.

    Par ailleurs, la partie arrière 7 comporte, dans sa surface latérale extérieure, en trois endroits décalés par rapport aux encoches 25, trois pattes de blocage 28 s'étendant en porte-à-faux vers l'arrière et comportant un épaulement extérieur 29 grâce auquel les pattes 28 peuvent prendre appui dans une gorge 30 du boítier 5 dans la position selon la figure 1, position dans laquelle la portion cylindrique 16 de la partie avant 6 est engagée à fond dans la portion antérieure 31 cylindrique du boítier 5, son épaulement 17 portant contre un épaulement 32 du boítier 5.Furthermore, the rear part 7 has, in its lateral surface outside, in three places offset from the notches 25, three locking tabs 28 projecting rearwardly and having an outer shoulder 29 by which the legs 28 can be supported in a groove 30 of the housing 5 in the position according to Figure 1, position in which the cylindrical portion 16 of the front part 6 is fully engaged in the front portion 31 cylindrical housing 5, its shoulder 17 bearing against a shoulder 32 of the housing 5.

    En se référant aux figures 4 à 6, on va décrire ci-après les différentes étapes d'enfichage des contacts 3 dans la partie de connecteur 1 (l'enfichage des contacts 4 dans la partie de connecteur 2 s'effectue de la même manière), seules les deux parties de l'isolant des deux parties de connecteur 1 et 2 étant illustrées sur ces figures.Referring to Figures 4 to 6, we will describe below the different steps for inserting the contacts 3 in the connector 1 (plugging contacts 4 into connector part 2 the same way), only the two parts of the insulation two connector parts 1 and 2 being illustrated in these figures.

    Avant l'enfichage des contacts 3, les deux parties 6 et 7 de l'isolant sont écartées l'une de l'autre, cette position étant définie par l'encliquetage de la dent 21 des pattes 20 de la partie 6 dans le cran 26 des encoches 25 de la partie 7. Dans cette position, les doigts 23 sont dégagés du logement 15. Les contacts 3 peuvent être engagés depuis l'arrière, à travers les trous 22 de la partie arrière 7 jusqu'à ce que les collerettes 12 viennent porter contre les bossages 24 des doigts 23 (figure 4), qui constituent un point dur nettement perceptible.Before inserting the contacts 3, the two parts 6 and 7 of the insulation are spaced from each other, this position being defined by latching of tooth 21 of lugs 20 of part 6 in notch 26 notches 25 of part 7. In this position, the fingers 23 are clear of housing 15. Contacts 3 can be engaged from the rear, through the holes 22 of the rear part 7 until the flanges 12 come to bear against the bosses 24 of the fingers 23 (Figure 4), which constitute a clearly perceptible hard point.

    Après que ce point dur ait été franchi par application d'une poussée accrue aux contacts 3, l'enfichage de ces derniers peut continuer, moyennant un écartement élastique des doigts 23 par les collerettes 12, jusqu'à l'appui des collerettes 12 contre les épaulements 14 au fond des logements 15, épaulements qui constituent la butée d'enfichage pour les contacts 3 (figure 5).After this hard point has been crossed by applying a increased thrust at contacts 3, plugging in of these can continue, by means of an elastic spacing of the fingers 23 by the flanges 12, until the flanges 12 press against the shoulders 14 at the bottom of the housings 15, shoulders which constitute the stop for contacts 3 (figure 5).

    Ensuite, en exerçant sur la partie 7 une poussée en direction de la partie 6, en vue de leur rapprochement réciproque, il est possible de dégager les dents 21 des crans 26, par flexion des pattes 20 vers l'extérieur, et d'amener les deux parties 6, 7 à la position réciproque suivant la figure 6 dans laquelle les deux parties sont rapprochées l'une de l'autre et sont maintenues par encliquetage des dents 21 derrière les épaulements 27. Pendant ce mouvement de rapprochement des parties 6, 7, les doigts 23 sont enfoncés dans les logements 15, derrière les collerettes 12 des contacts 3, ce qui fait que les collerettes 12 se trouvent emprisonnées entre les épaulements 14 et les extrémités libres des doigts 23. Ces derniers, dans cette position, sont bloqués par le logement 15 qui les entoure (voir figure 1) et les empêche de s'écarter pour permettre le passage d'une collerette 12.Then, by pushing on part 7 towards the part 6, with a view to reconciling them, it is possible to release the teeth 21 from the notches 26, by bending the legs 20 towards the outside, and bringing the two parts 6, 7 to the reciprocal position according to Figure 6 in which the two parts are brought together from one another and are held by snap-fastening of the teeth 21 behind the shoulders 27. During this movement of rapprochement parts 6, 7, the fingers 23 are pressed into the housings 15, behind the flanges 12 of the contacts 3, which means that the flanges 12 are trapped between the shoulders 14 and the ends free of fingers 23. The latter, in this position, are blocked by the housing 15 which surrounds them (see FIG. 1) and prevents them from move aside to allow the passage of a flange 12.

    Il convient de remarquer que, si pour une raison quelconque, dans la position des parties 6, 7 suivant la figure 5, un contact 3 n'avait pas été suffisamment enfiché pour que sa collerette 12 ait franchi les extrémités libres des doigts 23, sa collerette 12 se trouverait immobilisée entre les doigts 23 et maintiendrait ces derniers écartés; les deux parties 6 et 7 ne pourraient alors pas être amenées à la position rapprochée suivant la figure 6, du fait que les doigts 23 écartés ne pourraient pas être engagés dans le logement 15. L'opérateur serait ainsi averti avec certitude de cette situation et pourrait faire le nécessaire pour y remédier.It should be noted that, if for any reason in the position of the parts 6, 7 according to FIG. 5, a contact 3 did not been inserted enough for its collar 12 to have crossed the free ends of the fingers 23, its flange 12 would be immobilized between the fingers 23 and would keep the latter apart; the two parts 6 and 7 could not then be brought to the close position according to Figure 6, because the fingers 23 rejected could not be engaged in housing 15. The operator would thus be warned with certainty of this situation and could do whatever is necessary to remedy this.

    Ce n'est que lorsque les deux parties 6, 7 de l'isolant ont été amenées à la position réciproque rapprochée suivant la figure 6, que l'ensemble comprenant les deux parties 6, 7 et les contacts 3, est inséré dans le boítier 5 et bloqué dans ce dernier par les pattes 28, comme représenté sur la figure 1.It is only when the two parts 6, 7 of the insulation have been brought to the reciprocal close position according to FIG. 6, that the assembly comprising the two parts 6, 7 and the contacts 3, is inserted in the housing 5 and blocked in the latter by the tabs 28, as shown in figure 1.

    Après que les mêmes opérations que celles décrites au sujet de la partie de connecteur 1 ont été effectuées sur la partie de connecteur 2, les deux parties de connecteur 1 et 2 peuvent être accouplées et verrouillées à l'état accouplé à l'aide de la bague 11, comme illustré par la figure 1. After the same operations as those described for the connector part 1 were made on connector part 2, the two connector parts 1 and 2 can be coupled and locked in the coupled state using the ring 11, as illustrated by figure 1.

    Il va de soi que le mode de réalisation illustré et décrit n'a été donné qu'à titre d'exemple indicatif et non limitatif et que de nombreuses modifications et variantes sont possibles dans le cadre de l'invention. Ainsi, la partie de connecteur 1 pourrait comporter par exemple des contacts mâles au lieu de contacts femelles, ou des contacts mâles et des contacts femelles, l'autre partie de connecteur 2 comportant des contacts complémentaires. Le connecteur pourrait également être un connecteur non circulaire et le nombre des contacts pourrait être différent de deux.It goes without saying that the embodiment illustrated and described has not been given as an indicative and non-limiting example and that many modifications and variants are possible within the framework of the invention. Thus, the connector part 1 could comprise by example of male contacts instead of female contacts, or male contacts and female contacts, the other connector part 2 with additional contacts. The connector could also be a non-circular connector and the number of contacts could be different from two.

    On reconnaít en particulier sur les figures 2 et 3, des moyens de détrompage prévus sur les parties 6, 7 et 9, 10 de l'isolant des deux parties de connecteur, mais ces moyens ne sont pas décrits dans la mesure où ils n'entrent pas dans le cadre de la présente invention.We recognize in particular in Figures 2 and 3, means of coding provided on parts 6, 7 and 9, 10 of the insulation of the two connector parts, but these means are not described in the to the extent that they are not within the scope of the present invention.

    D'autres modes de réalisation seraient également concevables en ce qui concerne les moyens de positionnement réciproques des deux parties de l'isolant de chaque partie de connecteur, et les doigts 23 ainsi que le logement 15 qui reçoit lesdits doigts en vue de leur blocage, pourraient être remplacés par d'autres moyens de rétention des collerettes 12 des contacts et par d'autres moyens de condamnation ou blocage de ces moyens de rétention.Other embodiments would also be conceivable in with regard to the reciprocal positioning means of the two insulator parts of each connector part, and fingers 23 as well as the housing 15 which receives said fingers with a view to their blockage, could be replaced by other means of retention flanges 12 of the contacts and by other locking means or blockage of these means of retention.

    Un avantage considérable du mode de réalisation représenté et décrit consiste dans le fait que toutes les pièces du connecteur et en particulier les deux parties 6, 7 et 9, 10 de chaque partie de connecteur 1, 2, peuvent être réalisées en matière plastique par simple moulage, sans reprise d'usinage. Chaque moitié de connecteur se compose ainsi d'un nombre minimal de pièces de fabrication simple, ce qui réduit le coût du connecteur dans son ensemble.A considerable advantage of the embodiment shown and described consists in the fact that all parts of the connector and particular the two parts 6, 7 and 9, 10 of each connector part 1, 2, can be made of plastic by simple molding, without resuming machining. Each connector half is made up like this a minimum number of simple manufacturing parts, which reduces the cost of the connector as a whole.

    Claims (7)

    1. Electrical connector formed of two connector parts (1, 2) each including an insulator body (5, 6, 7; 8, 9, 10) into which at least one electrical contact (3,4) comprising a retaining collar (12) is plugged from the rear side and held at the level of its collar, the insulator body of each connector part (1, 2) being divided transverse to the contact plug-in direction into a rear part (7, 10) and a front part (6, 9) including positioning means (21, 27) allowing them to be held in a reciprocal position in which they are brought close together, the rear part having for each contact a retention means including several cantilevered pins (23) projecting like petals towards the front part in such a way as to separate by resilient distortion when a contact collar is passed over them, and the front part having for each contact an immobilisation means to immobilise said retention component in said reciprocally close position, including a housing (15), configured in such a way that said pins are not able to separate when they are engaged in said housing in said reciprocally close position, said housing ending on the side away from the rear part with a shoulder (14) acting as a stop limiting the depth to which the contacts can be plugged in, characterised by the fact that said rear part (7, 10) and said front part (6, 9), together constituting an insulator intended to be mounted in a casing (5, 8) of each connector part (1, 2) include at the same time positioning means (21, 27) for holding them in said reciprocally close position and positioning means (21, 26) for holding them in a reciprocal position in which said two parts (6, 9; 7, 10) are spaced apart from each other, said positioning means (21; 26, 27), said pins (23) and said housings (15) being configured in such a way that
      a) said housings do not engage with said pins and offer no resistance to the separation of said pins by resilient distortion when a contact collar is passed over them, in said reciprocally separated position of the two insulator parts, and
      b) engage with said pins in said reciprocally close position of the two insulator parts in order to
      b1) not only prevent a contact collar from passing over said pins in said reciprocally close position but again
      b2) prevent transfer from said reciprocally separated position to said reciprocally close position when a contact collar has passed only partially over said pins.
    2. Connector according to claim 1, characterised by the fact that each pin (23) comprises, on the inner side, a projection (24) between its connection to the rear part and its free end.
    3. Connector according to any one of the previous claims, characterised by the fact that the positioning means on the two parts (6, 7; 9, 10) of the insulator include ratchet means made of a single piece with the two parts.
    4. Connector according to claim 3, characterised by the fact that the ratchet means include, on one of the parts, a cantilevered lug (20), projecting towards the other part in such a way as to be able to bend resiliently, this lug bearing a tooth (21) at its free end, and on the other part two transverse notches (26, 27) spaced out in such a way as to allow said tooth to ratch itself into one and the other of said notches.
    5. Connector according to claim 4, characterised by the fact that said lug (20) is formed on one of the two parts in such a way as to bend outwards, in a position such that this bending is inhibited by the casing (5,8) when the two parts are mounted in the casing.
    6. Connector according to any one of the previous claims, characterised by the fact that means (28) for locking the two parts (6, 7; 9, 10) of the insulator in the casing (5, 8), in said second position, are formed on one of said parts.
    7. Connector according to any one of the previous claims, characterised by the fact that the two parts (6, 7; 9, 10) of the insulator are moulded in a plastic material, without further machining, with said positioning, retention, immobilisation and locking means.
    EP98401329A 1997-06-10 1998-06-04 Electrical connector with improved contact security Expired - Lifetime EP0884806B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9707148A FR2764446B1 (en) 1997-06-10 1997-06-10 ELECTRICAL CONNECTOR WITH IMPROVED CONTACT SECURITY
    FR9707148 1997-06-10

    Publications (3)

    Publication Number Publication Date
    EP0884806A2 EP0884806A2 (en) 1998-12-16
    EP0884806A3 EP0884806A3 (en) 1999-03-24
    EP0884806B1 true EP0884806B1 (en) 2004-04-07

    Family

    ID=9507789

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP98401329A Expired - Lifetime EP0884806B1 (en) 1997-06-10 1998-06-04 Electrical connector with improved contact security

    Country Status (5)

    Country Link
    US (1) US6132262A (en)
    EP (1) EP0884806B1 (en)
    DE (1) DE69822925T2 (en)
    ES (1) ES2217518T3 (en)
    FR (1) FR2764446B1 (en)

    Families Citing this family (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US20040097912A1 (en) * 2002-11-18 2004-05-20 Gonnering Wayne J. Electrosurgical generator and method with removable front panel having replaceable electrical connection sockets and illuminated receptacles
    DE202008014168U1 (en) * 2008-10-24 2010-03-11 Weidmüller Interface GmbH & Co. KG Plug connection with a male and a female part and these receiving adapter housings
    US8926363B2 (en) * 2012-03-02 2015-01-06 Tyco Electronics Corporation Electrical connector assembly
    US20170005444A1 (en) * 2014-04-11 2017-01-05 HARTING Electronics GmbH Plug-in connector

    Family Cites Families (11)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2115556A5 (en) * 1970-11-24 1972-07-07 Lb Air
    FR2575612B1 (en) * 1985-01-03 1987-04-30 Lb Air METHOD FOR MANUFACTURING AN ELECTRICAL CONNECTION DEVICE
    JPH0430793Y2 (en) * 1988-05-06 1992-07-24
    GB8827756D0 (en) * 1988-11-28 1988-12-29 Amp Great Britain Electrical connector housing assembly
    MY104824A (en) * 1989-03-17 1994-06-30 Whitaker Corp Electrical connector
    FR2681735B1 (en) * 1991-09-19 1995-07-28 Souriau & Cie ELECTRICAL CONNECTOR WITH LOCKING RING.
    FR2714536B1 (en) * 1993-12-27 1996-01-19 Cinch Connecteurs Sa Improvements to the components of electrical connector housings.
    JP2921639B2 (en) * 1994-03-07 1999-07-19 矢崎総業株式会社 Double locking connector and locking release structure
    FR2727258B1 (en) * 1994-11-21 1996-12-20 Cinch Connecteurs Sa ELECTRICAL CONNECTOR
    US5520553A (en) * 1994-12-08 1996-05-28 Molex Incorporated Connector with a front end mounted terminal position assurance system
    FR2729794A1 (en) * 1995-01-19 1996-07-26 Cinch Connecteurs Sa Locking assembly for electrical connector

    Also Published As

    Publication number Publication date
    DE69822925T2 (en) 2005-03-10
    US6132262A (en) 2000-10-17
    DE69822925D1 (en) 2004-05-13
    ES2217518T3 (en) 2004-11-01
    FR2764446A1 (en) 1998-12-11
    EP0884806A2 (en) 1998-12-16
    EP0884806A3 (en) 1999-03-24
    FR2764446B1 (en) 2001-10-26

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