EP0592342B1 - Protected connector for electrical multiple-branched distribution device - Google Patents
Protected connector for electrical multiple-branched distribution device Download PDFInfo
- Publication number
- EP0592342B1 EP0592342B1 EP19930420398 EP93420398A EP0592342B1 EP 0592342 B1 EP0592342 B1 EP 0592342B1 EP 19930420398 EP19930420398 EP 19930420398 EP 93420398 A EP93420398 A EP 93420398A EP 0592342 B1 EP0592342 B1 EP 0592342B1
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- EP
- European Patent Office
- Prior art keywords
- connector according
- spring
- mountings
- elastically deformable
- conductor
- 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.)
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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
- H01R13/46—Bases; Cases
- H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure
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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
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/247—Connections using contact members penetrating or cutting insulation or cable strands the contact members penetrating the insulation being actuated by springs
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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
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
Definitions
- connection devices which are produced in the workshop and which include a series of branches provided at intervals equidistant along a supply line constituted by insulated conductors (three or four as the case may be) assembled together by twisting.
- Each of these branches includes a connection member formed by a socket or other terminal block which is made integral with the line by stirrups and whose terminals are connected, by short insulated secondary conductors, to connectors with perforation of insulation connected to the conductors of the main line.
- This type of multiple branch connection device is particularly well illustrated by document FR-A-2 656 470 and document FR-A-2 601 516.
- connection device In some cases and especially when such a connection device is intended for lighting a completely dark environment, it is feared that a sharp rise in temperature following the appearance of a localized fire could cause 'Damage to at least one of the branches, such damage being of a nature to generate a short circuit causing the device to be tripped and the sudden stopping of all the lighting of the environment in question.
- the connector according to the invention is of the type of those formed by two elements which are assembled to one another using a threaded tightening tie and at least one of which contains at least one metal blade of connection provided at its ends with transverse points or teeth capable, during the operation of the aforementioned tie rod, of protruding through slots made in support linings and of penetrating into the insulator and into the metallic core of the main conductor and the secondary conductor previously engaged between the two elements.
- the originality of the safety connector according to the invention resides in the fact that at least one of its two elements is equipped with an elastically deformable means which simultaneously bears against the element in question and against the main conductor so that in the event of softening of the connector under the effect of a accidental rise in ambient temperature, this means causes the separation of the two elements and the withdrawal of the teeth from the metallic core and from the insulator of the main conductor.
- the elastically deformable means can take the form of either a metal spring of the pin, leaf or flange type, or a support lining made of a synthetic material having elastic deformability characteristics allowing it to play the role of retractor devolved to it.
- Fig. 1 is a perspective view illustrating the arrangement of the internal parts of a safety connector established according to a first embodiment of the invention.
- Fig. 2 is a plan view showing the inner face of that of the two elements of the connector according to FIG. 1 which contains the pin spring for automatic disconnection in the event of fire.
- Fig. 3 is an axial section of the connector after assembly and tightening on a main conductor and on a secondary bypass conductor.
- Fig. 4 reproduced fig. 3 after deformation and opening following an accidental rise in ambient temperature.
- Fig. 5 and 6 are vertical sections of the connector along the plane indicated in AA in fig. 2, respectively at the positions illustrated in fig. 3 and in fig. 4.
- FIG. 7 and 8 illustrate in perspective, respectively in section, an alternative embodiment of the connector according to FIG. 1 to 6.
- Fig. 9 is a section showing another embodiment in which the spacer spring is of the curved blade type.
- Fig. 10 illustrates in perspective the mounting of this spring on the connection blades, showing the support lining associated with said blades.
- Fig. 11 and 12 is a section, respectively a perspective view, similar to that of FIG. 9 and 10, illustrating an embodiment in which the spacer spring is of the coil type.
- Fig. 13 and 14 likewise illustrate a variant.
- Fig. 15 and 16 are detail sections of a connector established according to another embodiment of the invention.
- the connector comprises, in the manner known per se, two elements 1 and 2 made of a thermoplastic material shaped by molding.
- the upper element 1 With the upper element 1 are associated two metal connection blades 3, each of the ends of which is provided with a tip 3 a with transverse teeth, it being observed that in FIG. 1 one of said blades has been assumed to be introduced inside the insulating support lining 4 which is intended to cover it.
- One and the other of the two linings 4 have two end bosses 4 a , the free face facing downward, established at a concave profile, is cut out by a slot 4 b capable of forming a passage for the tip 3 has correspondent.
- the lower element 2 is equipped with two support linings 5 identical to the linings 4 described above, it being however noted that said linings 5 are not provided with any means of electrical connection.
- the metal blades have not been put in place as was assumed in the drawing, or that they have been replaced by blades made of a material which does not conduct electricity.
- the assembly of the two elements 1 and 2 is ensured using a threaded tie rod 6 which is engaged through a perforation of the element 1 and a guide chimney 2 a of the element 2 to receive a nut.
- tightening 6 has kept angularly inside a tubular boss 2 b of said element.
- the upper element 1 has been made to comprise a spring 7 constituted by a metal wire shaped in the manner of a pin; as shown in fig. 1, this spring 7 has a transverse loop 7 a and two lateral tabs 7 b connected by suitably profiled longitudinal parts. As illustrated in fig. 2 to 4, the spring 7 is housed in the body 1 so that the tabs 7 b come to bear against the two linings 4 at one of the points 3 a of each blade 3, while the loop 7 a is arranged above a tooth 1 a formed in the corresponding edge of the element 1, which tooth ensures the retention in place of the pin spring.
- the connector according to the invention is used in the same way as conventional connectors of the same type, in that the conductor A of the main line and the conductor B of the proposed branch are engaged between the linings 4 and 5.
- the clamping the pulling thread 6 provides the approximation of the two elements 1 and 2, the crushing of the bosses 4a and 5a, the passage of spikes or teeth 3a through the slots 4b, the penetration of the teeth into the insulation of the two conductors A and B and finally their anchoring in the metallic core of these.
- the conductors A and B are then electrically connected to each other through the two blades 3, as illustrated in FIG. 3 and 5.
- tooth 1 a no longer ensures the retention of the loop 7 a of the spring 7 which is thus released, so that this loop comes to bear against the main conductor A, while the lateral tabs 7 b continue to exert their action on the teeth 3 b through the thin thickness of the linings 4.
- the connector tends to open at the level of the conductor A under the action of the spring 7, in the manner illustrated in FIG.
- the pin 17 which forms the spacer spring is housed in the lower element 12 of the connector, which element 12 is made of a thermoplastic material which only becomes malleable at a temperature markedly higher than that necessary for softening of the material which constitutes the upper element 11.
- This spring 17 bears on the one hand by its lateral tabs 17 b against the support linings 14 associated with the blades 13 of the element 11, on the other hand by its loop 17a against the linings 15 of the lower component 12, these liners being devoid of metal blades, as in the embodiment according to fig. 1 to 6.
- the element 11 which deforms first, so that the spring 17, by pressing against the element 12 which is still rigid and undeformable, drives the element 11 upwards , which has the effect of terminating the connection between the two conductors A and B, in the same manner as described above. It will be observed that it is preferable to make the lower element 12 have two nozzles 12 c capable of overcoming the main conductor A and of retaining it when the upper element 11 has melted.
- a leaf spring referenced 27 which has a curved profile open upwards and the ends of which are attached to the two connection blades 23, at the level of that of the two points or teeth 23 a of each these which is intended to cooperate with the main conductor A.
- a liner in one piece comprising two parts 24 (identical to those referenced 4 or 14) connected one to the other by a thin veil 24 c .
- the leaf spring 27 bears against the main conductor A by its central part which acts through the web 24 c . As, moreover, it bears against the blades 23 by its ends, it is understood that when the accidental rise in temperature reaches the threshold of deformability of the material which constitutes the elements 21 and 22, said blade 27 indeed ensures automatic spacing of the two elements and the disconnection of the two conductors.
- Fig. 11 and 12 illustrate another embodiment of the connector according to the invention in which the two blades 33 housed in the upper element 31 are connected to each other by a transverse bridge 33 b so as to constitute a single piece .
- a coil spring 37 against the trigger guard 33 b is supported a coil spring 37, the base of which is housed in a central well 34 d provided in the web 34 c of a double lining 34 similar to that 24 of the previous embodiment.
- the spring 37 applies the bottom of the well 34 d against the main conductor A, so that in the event of softening of the thermoplastic material which constitutes the two elements 31 and 32 of the connector, this spring 37 operates the spacing of said elements and l extraction of the teeth 33 a out of the driver A.
- each coil spring 47 bears against a lateral tab 43 c provided on each blade 43 at the tooth 43 a thereof which cooperates with the main conductor A, while its base is applied against the bottom of a small hollow boss 44 d provided laterally on each lining 44.
- Fig. 15 and 16 illustrate another embodiment of the invention, according to which the elastically deformable means which is compressed during the tightening of the two elements 51 and 52 of the connector in order to operate the spacing of said elements in the event of softening of the synthetic material due to an accidental rise in ambient temperature, is here constituted by the linings 54 which enclose the connection blades of the element 51.
- Each lining 54 is made of an insulating material having good elasticity joined to good memory , these characteristics should not be altered by a rise in temperature.
- each lining 54 must have a bridge 54 e suitable for securing the connection blade and the lining, so that the elastic reaction of this the latter works well, in addition to the separation of the two elements 51 and 52, the removal of the teeth 53 a .
- the linings 54 may be directly molded onto the blades 53.
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- Connector Housings Or Holding Contact Members (AREA)
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
- Fuses (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Description
On sait que pour l'alimentation électrique des chantiers ou pour l'éclairage de lieux publics tels que tunnels, galeries ou parkings souterrains, on a proposé des dispositifs de branchement qui sont réalisés en atelier et qui comprennent une série de dérivations prévues à des intervalles équidistants le long d'une ligne d'alimentation constituée par des conducteurs isolés (au nombre de trois ou de quatre suivant les cas) assemblés les uns aux autres par torsade. Chacune de ces dérivations comporte un organe de connexion formé par une prise de courant ou autre bloc de jonction qui est rendu solidaire de la ligne par des étriers et dont les bornes sont reliées, par des conducteurs secondaires isolés de courte longueur, à des connecteurs à perforation d'isolant branchés sur les conducteurs de la ligne principale.It is known that for the electrical supply of construction sites or for the lighting of public places such as tunnels, galleries or underground car parks, connection devices have been proposed which are produced in the workshop and which include a series of branches provided at intervals equidistant along a supply line constituted by insulated conductors (three or four as the case may be) assembled together by twisting. Each of these branches includes a connection member formed by a socket or other terminal block which is made integral with the line by stirrups and whose terminals are connected, by short insulated secondary conductors, to connectors with perforation of insulation connected to the conductors of the main line.
Ce type de dispositif de branchement à dérivations multiples est particulièrement bien illustré par le document FR-A-2 656 470 et le document FR-A-2 601 516.This type of multiple branch connection device is particularly well illustrated by document FR-A-2 656 470 and document FR-A-2 601 516.
Dans certains cas et tout spécialement lorsqu'un tel dispositif de branchement est destiné à l'éclairage d'un environnement totalement obscur, on peut craindre qu'une forte élévation de température faisant suite à l'apparition d'un incendie localisé ne provoque l'endommagement de l'une au moins des dérivations, un tel endommagement étant de nature à engendrer un court-circuit suscitant la disjonction du dispositif et l'arrêt brutal de tout l'éclairage de l'environnement considéré.In some cases and especially when such a connection device is intended for lighting a completely dark environment, it is feared that a sharp rise in temperature following the appearance of a localized fire could cause 'Damage to at least one of the branches, such damage being of a nature to generate a short circuit causing the device to be tripped and the sudden stopping of all the lighting of the environment in question.
C'est à ce risque qu'entend pallier la présente invention, et ce à l'aide du connecteur qui est défini à la revendication 1.It is to this risk that the present invention intends to overcome, and this using the connector which is defined in
Le connecteur suivant l'invention est du type de ceux formés par deux éléments qui sont assemblés l'un à l'autre à l'aide d'un tirant fileté de serrage et dont l'un au moins renferme au moins une lame métallique de connexion pourvue à ses extrémités de pointes ou dents transversales aptes, lors de la manoeuvre du tirant précité, à faire saillie à travers des fentes ménagées dans des garnitures d'appui et à pénétrer dans l'isolant et dans l'âme métallique du conducteur principal et du conducteur secondaire préalablement engagés entre les deux éléments.The connector according to the invention is of the type of those formed by two elements which are assembled to one another using a threaded tightening tie and at least one of which contains at least one metal blade of connection provided at its ends with transverse points or teeth capable, during the operation of the aforementioned tie rod, of protruding through slots made in support linings and of penetrating into the insulator and into the metallic core of the main conductor and the secondary conductor previously engaged between the two elements.
L'originalité du connecteur de sécurité suivant l'invention réside dans le fait que l'un au moins de ses deux éléments est équipé d'un moyen élastiquement déformable qui prend simultanément appui contre l'élément considéré et contre le conducteur principal afin qu'en cas de ramollissement du connecteur sous l'effet d'une élévation accidentielle de la température ambiante, ce moyen provoque l'écartement des deux éléments et le retrait des dents hors de l'âme métallique et de l'isolant du conducteur principal.The originality of the safety connector according to the invention resides in the fact that at least one of its two elements is equipped with an elastically deformable means which simultaneously bears against the element in question and against the main conductor so that in the event of softening of the connector under the effect of a accidental rise in ambient temperature, this means causes the separation of the two elements and the withdrawal of the teeth from the metallic core and from the insulator of the main conductor.
On conçoit que le conducteur se trouve ainsi automatiquement déconnecté du conducteur principal en cas d'incendie, ce qui évite tout risque de court-circuit ou autre accident.It is understood that the driver is thus automatically disconnected from the main conductor in the event of a fire, which avoids any risk of short circuit or other accident.
Suivant les cas, le moyen élastiquement déformable peut prendre la forme soit d'un ressort métallique du type en épingle, à lame ou à boudin, soit d'une garniture d'appui établie en une matière synthétique présentant des caractéristiques de déformabilité élastique lui permettant de jouer le rôle d'écarteur qui lui est dévolu.Depending on the case, the elastically deformable means can take the form of either a metal spring of the pin, leaf or flange type, or a support lining made of a synthetic material having elastic deformability characteristics allowing it to play the role of retractor devolved to it.
Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer :The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing:
Fig. 1 est une vue en perspective illustrant l'agencement des pièces internes d'un connecteur de sécurité établi suivant un premier mode de mise en oeuvre de l'invention.Fig. 1 is a perspective view illustrating the arrangement of the internal parts of a safety connector established according to a first embodiment of the invention.
Fig. 2 est une vue en plan montrant la face intérieure de celui des deux éléments du connecteur suivant fig. 1 qui renferme le ressort en épingle destiné à la déconnexion automatique en cas d'incendie.Fig. 2 is a plan view showing the inner face of that of the two elements of the connector according to FIG. 1 which contains the pin spring for automatic disconnection in the event of fire.
Fig. 3 est une coupe axiale du connecteur après assemblage et serrage sur un conducteur principal et sur un conducteur secondaire de dérivation.Fig. 3 is an axial section of the connector after assembly and tightening on a main conductor and on a secondary bypass conductor.
Fig. 4 reproduit fig. 3 après déformation et ouverture consécutive à une élévation accidentelle de la température ambiante.Fig. 4 reproduced fig. 3 after deformation and opening following an accidental rise in ambient temperature.
Fig. 5 et 6 sont des coupes verticales du connecteur suivant le plan indiqué en A-A en fig. 2, respectivement aux positions illustrées en fig. 3 et en fig. 4.Fig. 5 and 6 are vertical sections of the connector along the plane indicated in AA in fig. 2, respectively at the positions illustrated in fig. 3 and in fig. 4.
Fig. 7 et 8 illustrent en perspective, respectivement en coupe, une variante de réalisation du connecteur suivant fig. 1 à 6.Fig. 7 and 8 illustrate in perspective, respectively in section, an alternative embodiment of the connector according to FIG. 1 to 6.
Fig. 9 est une coupe montrant une autre forme de réalisation dans laquelle le ressort d'écartement est du type à lame cintrée.Fig. 9 is a section showing another embodiment in which the spacer spring is of the curved blade type.
Fig. 10 illustre en perspective le montage de ce ressort sur les lames de connexion, en faisant apparaître la garniture d'appui associée auxdites lames.Fig. 10 illustrates in perspective the mounting of this spring on the connection blades, showing the support lining associated with said blades.
Fig. 11 et 12 est une coupe, respectivement une vue en perspective, analogues à celle de fig. 9 et 10, illustrant une forme de réalisation dans laquelle le ressort d'écartement est du type à boudin.Fig. 11 and 12 is a section, respectively a perspective view, similar to that of FIG. 9 and 10, illustrating an embodiment in which the spacer spring is of the coil type.
Fig. 13 et 14 illustrent de la même manière une variante.Fig. 13 and 14 likewise illustrate a variant.
Fig. 15 et 16 sont des coupes de détail d'un connecteur établi suivant un autre mode de mise en oeuvre de l'invention.Fig. 15 and 16 are detail sections of a connector established according to another embodiment of the invention.
Dans le mode de mise en oeuvre de l'invention qui a été illustré en fig. 1 à 6, le connecteur comprend, à la façon en soi connue, deux éléments 1 et 2 réalisés en une matière thermoplastique conformée par moulage. A l'élément supérieur 1 sont associées deux lames métalliques de connexion 3 dont chacune des extrémités est pourvue d'une pointe 3a à denture transversale, étant observé qu'en fig. 1 l'une desdites lames a été supposée introduite à l'intérieur de la garniture isolante d'appui 4 qui est destinée à la recouvrir. L'une et l'autre des deux garnitures 4 présentent deux bossages d'extrémités 4a dont la face libre tournée vers le bas, établie à un profil concave, est découpée d'une fente 4b apte à former passage pour la pointe 3a correspondante.In the embodiment of the invention which has been illustrated in FIG. 1 to 6, the connector comprises, in the manner known per se, two
L'élément inférieur 2 est équipé de deux garnitures d'appui 5 identiques aux garnitures 4 ci-dessus décrites, étant toutefois noté que lesdites garnitures 5 ne sont munies d'aucun moyen de connexion électrique. A cet effet, on peut imaginer soit que les lames métalliques n'ont pas été mises en place comme on l'a supposé au dessin, soit qu'elles ont été remplacées par des lames en une matière non conductrice de l'électricité.The
L'assemblage des deux éléments 1 et 2 est assuré à l'aide d'un tirant fileté 6 qui est engagé à travers une perforation de l'élément 1 et une cheminée de guidage 2a de l'élément 2 pour recevoir un écrou de serrage 6a maintenu angulairement à l'intérieur d'un bossage tubulaire 2b dudit élément.The assembly of the two
Conformément à la présente invention, on a fait comporter à l'élément supérieur 1 un ressort 7 constitué par un fil métallique conformé à la manière d'une épingle ; comme montré en fig. 1, ce ressort 7 présente une boucle transversale 7a et deux pattes latérales 7b reliées par des parties longitudinales convenablement profilées. A la manière illustrée en fig. 2 à 4, le ressort 7 est logé dans le corps 1 de façon telle que les pattes 7b viennent prendre appui contre les deux garnitures 4 au niveau de l'une des pointes 3a de chaque lame 3, tandis que la boucle 7a se trouve disposée au-dessus d'une dent 1a ménagée dans le bord correspondant de l'élément 1, laquelle dent assure la retenue en place du ressort-épingle.In accordance with the present invention, the
Le connecteur suivant l'invention s'utilise de la même manière que les connecteurs classiques du même type, en ce sens que le conducteur A de la ligne principale et le conducteur B de la dérivation envisagée sont engagés entre les garnitures 4 et 5. Le serrage du tirant fileté 6 assure le rapprochement des deux éléments 1 et 2, l'écrasement des bossages 4a et 5a, le passage des pointes ou dents 3a à travers les fentes 4b, la pénétration de ces dents dans l'isolant des deux conducteurs A et B et finalement leur ancrage dans l'âme métallique de ceux-ci. Les conducteurs A et B sont alors électriquement reliés l'un a l'autre à travers les deux lames 3, comme illustré en fig. 3 et 5.The connector according to the invention is used in the same way as conventional connectors of the same type, in that the conductor A of the main line and the conductor B of the proposed branch are engaged between the
Si l'on suppose maintenant qu'à la suite d'une élévation de la température ambiante, la matière constitutive du connecteur décrit ci-dessus se ramollit et devient donc malléable, la dent 1a n'assure plus la retenue de la boucle 7a du ressort 7 qui est ainsi libéré, si bien que cette boucle vient prendre appui contre le conducteur principal A, tandis que les pattes latérales 7b continuent à exercer leur action sur les dents 3b à travers la mince épaisseur des garnitures 4. Etant donné qu'à ce moment les deux éléments 1 et 2 peuvent se déformer dans leur ensemble, le connecteur tend à s'ouvrir au niveau du conducteur A sous l'action du ressort 7, à la manière illustrée en fig. 4 ; dans ce mouvement d'écartement, les deux lames 3 sont elles-mêmes repoussées vers le haut, si bien que les dents 3a sont extraites de l'âme du conducteur A et de l'isolant de celui-ci (cf. fig. 6). Les conducteurs A et B ne sont alors plus électriquement reliés l'un à l'autre.If we now assume that following an increase in ambient temperature, the material constituting the connector described above softens and therefore becomes malleable,
La construction qui a été décrite ci-dessus peut faire l'objet de différentes variantes de réalisation.The construction which has been described above can be the subject of different variant embodiments.
En fig. 7 et 8, l'épingle 17 qui forme le ressort d'écartement est logé dans l'élément inférieur 12 du connecteur, lequel élément 12 est réalisé en une matière thermoplastique qui ne devient malléable qu'à une température nettement supérieure à celle nécessaire au ramollissement de la matière qui constitue l'élément supérieur 11. Ce ressort 17 prend appui d'une part par ses pattes latérales 17b contre les garnitures d'appui 14 associées aux lames 13 de l'élément 11, d'autre part par sa boucle 17a contre les garnitures 15 de l'élément inférieur 12, ces dernières garnitures étant dépourvues de lames métalliques, comme dans la forme de réalisation suivant fig. 1 à 6.In fig. 7 and 8, the
En cas d'élévation accidentelle de température, c'est l'élément 11 qui se déforme le premier, de telle sorte que le ressort 17, par appui contre l'élément 12 encore rigide et indéformable, chasse l'élément 11 vers le haut, ce qui a pour effet de faire cesser la connexion entre les deux conducteurs A et B, de la même manière que ci-dessus décrit. On observera qu'il est préférable de faire comporter à l'élément inférieur 12 deux becs 12c propres à surmonter le conducteur principal A et à le retenir lorsque l'élément supérieur 11 aura fondu.In the event of an accidental rise in temperature, it is the
Dans la forme de réalisation suivant fig. 9 et 10, on a recours à un ressort à lame référencé 27 qui présente un profil cintré ouvert vers le haut et dont les extrémités sont attachées aux deux lames de connexion 23, au niveau de celle des deux pointes ou dents 23a de chacune de celles-ci qui est destinée à coopérer avec le conducteur principal A. A ces deux lames 23 ainsi réunies est associée une garniture en une seule pièce, comprenant deux parties 24 (identiques à celles référencées 4 ou 14) reliées l'une à l'autre par un voile mince 24c.In the embodiment according to fig. 9 and 10, use is made of a leaf spring referenced 27 which has a curved profile open upwards and the ends of which are attached to the two
Le ressort à lame 27 prend appui contre le conducteur principal A par sa partie centrale qui agit à travers le voile 24c. Comme par ailleurs il prend appui contre les lames 23 par ses extrémités, on comprend que lorsque l'élévation accidentelle de la température atteint le seuil de déformabilité de la matière qui constitue les éléments 21 et 22, ladite lame 27 assure bien l'écartement automatique des deux éléments et la déconnexion des deux conducteurs.The
Fig. 11 et 12 illustrent une autre forme de réalisation du connecteur suivant l'invention dans laquelle les deux lames 33 logées dans l'élément supérieur 31 sont reliées l'une à l'autre par un pontet transversal 33b de manière à constituer une pièce unique. Contre le pontet 33b prend appui un ressort à boudin 37 dont la base est logée dans un puits central 34d prévu dans le voile 34c d'une garniture double 34 analogue à celle 24 de la forme de réalisation précédente.Fig. 11 and 12 illustrate another embodiment of the connector according to the invention in which the two
Le fonctionnement est autrement identique à celui décrit plus haut. Le ressort 37 applique le fond du puits 34d contre le conducteur principal A, de sorte qu'en cas de ramollissement de la matière thermoplastique qui constitue les deux éléments 31 et 32 du connecteur, ce ressort 37 opère l'écartement desdits éléments et l'extraction des dents 33a hors du conducteur A.Operation is otherwise identical to that described above. The
Dans la variante illustrée en fig. 13 et 14, le ressort à boudin unique est remplacé par deux ressorts 47 indépendants. L'extrémité supérieure de chaque ressort à boudin 47 prend appui contre une patte latérale 43c prévue sur chaque lame 43 au niveau de la dent 43a de celle-ci qui coopère avec le conducteur principal A, tandis que sa base est appliquée contre la fond d'un petit bossage creux 44d prévu latéralement sur chaque garniture 44.In the variant illustrated in FIG. 13 and 14, the single coil spring is replaced by two
Fig. 15 et 16 illustrent un autre mode de mise en oeuvre de l'invention, conformément auquel le moyen élastiquement déformable qui est comprimé lors du serrage des deux éléments 51 et 52 du connecteur afin d'opérer l'écartement desdits éléments en cas de ramollissement de la matière synthétique dù à une élévation accidentelle de la température ambiante, est ici constitué par les garnitures 54 qui renferment les lames de connexion de l'élément 51. Chaque garniture 54 est réalisée en un matériau isolant présentant une bonne élasticité jointe à une bonne mémoire, ces caractéristiques ne devant pas être altérées par une élévation de la température.Fig. 15 and 16 illustrate another embodiment of the invention, according to which the elastically deformable means which is compressed during the tightening of the two
Comme représenté, au niveau de la dent 53a qui coopère avec le conducteur principal A, le bossage 54a de chaque garniture 54 doit présenter un pontet 54e propre à solidariser la lame de connexion et la garniture, afin que la réaction élastique de cette dernière opère bien, en plus de l'écartement des deux éléments 51 et 52, le retrait des dents 53a. Pour obtenir un tel résultat, les garnitures 54 pourront être directement surmoulées sur les lames 53.As shown, at the level of
Claims (8)
- Protected connector for electrical multiple-branched distribution devices, consisting of two thermoplastic components (1-2, 11-12, 21-22, 31-32, 51-52) which are assembled together using a screw-threaded tightening stay bolt (6-6a) and at least one of which (1, 11, 21, 31, 41, 51) holds at least one metallic connection strip (3, 13, 23, 33, 43, 53) provided at its ends with points or transverse teeth (3a, 53a) adapted, on manoeuvre of the stay bolt (6-6a), to project across slots (4b) provided in support mountings (4, 14, 24, 34, 44, 54) and to penetrate the insulation of the main conductor (A) and of the secondary conductor (B) previously engaged between the two said components, characterised in that at least one of the two components is provided with an elastically deformable means (7, 17, 27, 37, 47, 54) which rests simultaneously against the component in question and against the main conductor (A), so that, should the connector soften under the effect of an accidental increase in temperature, said means, compressed at the time of tightening, causes the two components to separate and the teeth to withdraw from the metallic connection strip and the insulation of the main conductor.
- Connector according to claim 1, characterised in that the elastically deformable means consists of a spring (7, 17) in the shape of a pin, one end of which comprises a central loop (7a, 17a) applied against the opposite component (2, 12), whilst the opposite end forms two lateral feet (7b, 17b) which rest against the mountings (4, 14) in the region of divided bosses (4a) of the latter, which hold the tips (3a) intended to become embedded in the main conductor (A).
- Connector according to claim 2, characterised in that the central loop (7a) is held back by a tooth (1a) provided inside the component (1) which holds the spring (7).
- Connector according to claim 1, characterised in that the elastically deformable means consists of a spring in the form of an arched strip (27), the ends of which are secured to the strips (23) at the level of the teeth (23a) intended to become embedded in the main conductor (A), whilst its central arched part rests against said conductor (A).
- Connector according to claim 4, characterised in that a thin insulating cover (24c), which connects the two mountings (24) is interposed between the central part of the spring strip (27) and the conductor (A).
- Connector according to claim 1, characterised in that the elastically deformable means consists of a single coil spring (37) which is seated in a central socket (34d) integral with a cover (34c) connecting the two mountings (34) and resting against a bridge (33b) which links the two strips (33) together.
- Connector according to claim 1, characterised in that the elastically deformable means consists of two independent coil springs (47) which are each seated in a hollow boss (44d) of each mounting (44) and which rests against a bracket (43c) provided laterally on each strip (43).
- Connector according to claim 1, characterised in that the elastically deformable means consists of mountings (54) made of a material, the elasticity of which is not changed by a rise of temperature, these mountings being integral with strips (53) at the level of the teeth (53a) of the latter which are intended to become embedded in the main conductor (A).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9212371 | 1992-10-09 | ||
| FR9212371A FR2696879B1 (en) | 1992-10-09 | 1992-10-09 | Safety connector for multiple branch electrical connection devices. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0592342A1 EP0592342A1 (en) | 1994-04-13 |
| EP0592342B1 true EP0592342B1 (en) | 1995-06-21 |
Family
ID=9434585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19930420398 Expired - Lifetime EP0592342B1 (en) | 1992-10-09 | 1993-10-08 | Protected connector for electrical multiple-branched distribution device |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0592342B1 (en) |
| DE (1) | DE69300207T2 (en) |
| ES (1) | ES2075768T3 (en) |
| FI (1) | FI934404A (en) |
| FR (1) | FR2696879B1 (en) |
| NO (1) | NO933553L (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002134185A (en) * | 2000-10-27 | 2002-05-10 | Fci Japan Kk | Connector |
| US7104832B2 (en) | 2004-08-05 | 2006-09-12 | 3M Innovative Properties Company | Modular electrical connector and method of using |
| US7090544B2 (en) | 2004-08-05 | 2006-08-15 | 3M Innovative Properties Company | Modular electrical connector and method of using |
| WO2007121774A1 (en) * | 2006-04-26 | 2007-11-01 | Saae Malico Connectors International En Abrege 'sm-Ci' | Electrical connector for connecting at least two electrical conductors |
| DE102011052013A1 (en) * | 2011-07-21 | 2013-01-24 | Zf Lenksysteme Gmbh | Electrical plug portion for electrical servomotor used in steering system of motor vehicle, has spring element that is arranged in housing for pressurizing electrical contact element with force moving from starting position |
| CN107681295B (en) * | 2017-04-05 | 2019-05-03 | 国网浙江省电力公司衢州供电公司 | A kind of Intelligent insulation cable penetrating cable clamp |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3249906A (en) * | 1965-03-08 | 1966-05-03 | Gen Electric | Thermocouple connector |
| DE2508594A1 (en) * | 1975-02-27 | 1976-09-09 | Wirschitz Gmbh F | Junction clamp system for cables - connects one cable conductor to separate conductor using double-sided toothed contacting and gripping jaws |
| DE2745465C3 (en) * | 1977-10-08 | 1981-10-08 | Felten & Guilleaume Carlswerk AG, 5000 Köln | Branch device for straight and branch conductors with large cross-sections |
| FR2601516B2 (en) * | 1984-06-15 | 1988-08-05 | Sicame Sa | INSULATED BYPASS CONNECTOR FOR ELECTRICAL CABLES |
-
1992
- 1992-10-09 FR FR9212371A patent/FR2696879B1/en not_active Expired - Fee Related
-
1993
- 1993-10-05 NO NO933553A patent/NO933553L/en not_active Application Discontinuation
- 1993-10-07 FI FI934404A patent/FI934404A/en not_active Application Discontinuation
- 1993-10-08 ES ES93420398T patent/ES2075768T3/en not_active Expired - Lifetime
- 1993-10-08 EP EP19930420398 patent/EP0592342B1/en not_active Expired - Lifetime
- 1993-10-08 DE DE1993600207 patent/DE69300207T2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0592342A1 (en) | 1994-04-13 |
| DE69300207T2 (en) | 1995-10-26 |
| DE69300207D1 (en) | 1995-07-27 |
| FR2696879A1 (en) | 1994-04-15 |
| FI934404A (en) | 1994-04-10 |
| NO933553D0 (en) | 1993-10-05 |
| ES2075768T3 (en) | 1995-10-01 |
| FI934404A0 (en) | 1993-10-07 |
| NO933553L (en) | 1994-04-11 |
| FR2696879B1 (en) | 1994-12-23 |
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