EP1399991A2 - Female electric contact - Google Patents

Female electric contact

Info

Publication number
EP1399991A2
EP1399991A2 EP02740757A EP02740757A EP1399991A2 EP 1399991 A2 EP1399991 A2 EP 1399991A2 EP 02740757 A EP02740757 A EP 02740757A EP 02740757 A EP02740757 A EP 02740757A EP 1399991 A2 EP1399991 A2 EP 1399991A2
Authority
EP
European Patent Office
Prior art keywords
contact
folding
blade
cage
blades
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.)
Withdrawn
Application number
EP02740757A
Other languages
German (de)
French (fr)
Inventor
Georges Chaillot
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.)
FCI SA
Original Assignee
FCI SA
Framatome Connectors International SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FCI SA, Framatome Connectors International SAS filed Critical FCI SA
Publication of EP1399991A2 publication Critical patent/EP1399991A2/en
Withdrawn legal-status Critical Current

Links

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
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
    • 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
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets

Definitions

  • the invention relates to a female electrical contact and in particular an electrical contact of the type comprising a zone for connection to an electrical conductor and a contact termination with a complementary male contact.
  • Numerous female electrical contacts are known and in particular contacts whose contact termination with a complementary contact comprises elastic contact blades disposed inside a protective structure forming a protective cage either complete around the blades or partial around 1 'front or 1' back of the blades.
  • a known female electrical contact of the monobloc type with protective cage is described, for example, in document EP 0 310 487.
  • This monobloc contact is formed from a single metal flank and comprises two contact blades folded from elements of ceiling of the cage, along axes parallel to the main contact axis, in a 180 ° fold, the blades thus comprising parts for connection to the ceiling element conforming to the internal profile of the cage at the level of the ceiling element and side walls of the cage.
  • shutters for prestressing the elastic contact blades and for guiding the complementary male contact are produced by folding from the front of the side walls of the cage.
  • This contact provides very good protection of the contact blades and significant stiffness of the cage but requires a large metal strip width for its realization.
  • cage wall elements comprising support zones for the locking lugs coming from the housing are connected to the contact body by thin branches bent at the tops of a frame introduces a risk of breaking of these branches and significant constraints at the level of these branches in particular in the case of contacts used in automotive applications for which a contact section of the order of one to four square millimeters is frequent.
  • a female electrical contact cut folded in one piece having longitudinally a rear area for connection to an electrical conductor, a protective cage having a floor two side walls, and, on the front, a contact termination with a complementary male contact, the contact termination comprising at least one elastic contact blade provided with an end portion directed towards the front of the contact, the side walls being contiguous to the floor and folded along a longitudinal axis, contact for which said blade elastic contact is made from a strip connected to the rear of a side wall of the cage and extends backwards before folding.
  • the blade is formed from a strip cut obliquely relative to the floor.
  • the contact may include a shutter for holding the terminal part of the pre-stressed blade, this shutter being folded from the front of a side wall of the cage.
  • At least one of the side walls is extended by a sidewall intended to form a ceiling by folding along longitudinal axes, the cage thus having four sides.
  • the contact may include means for holding in a contact-carrying housing, these means possibly comprising either at least one window formed in a side wall or at least one lug produced on one of the sides of the cage.
  • the contact comprises two elastic contact blades facing each other.
  • the contact blades are folded along an axis which is not perpendicular to the longitudinal axis of the contact.
  • the blades are folded along a perpendicular axis and then warped to extend parallel to the longitudinal axis of the contact.
  • the blades can, after folding, comprise from the rear towards the front a section bearing against the lateral face to which they are connected, a section deviating from the lateral face, a convex section forming a contact zone and a terminal section d 'support of a flap folded from the front of the side face to which they are connected.
  • At least one of the side walls is extended by a sidewall intended to form a ceiling by folding along at least one longitudinal axis, this sidewall being extended towards the rear by a tab intended after folding to form a bearing wall of a complementary locking element set back from the folding zones of the blades.
  • Figure 1 A view of a metal strip element after cutting and before folding intended to produce a first example of contact according to the invention
  • Figure 2 a perspective view from the front of a first example of contact according to the invention
  • FIG. 3 A view of a metal strip element after cutting and before folding intended to produce a second example of contact according to the invention
  • Figure 4 A perspective view from the front of a second example of contact according to the invention
  • the female electrical contact 1 visible for example in FIG. 2 is of the cut-out folded monobloc type comprising longitudinally a rear zone 2 for connection to an electrical conductor.
  • connection such as insulation displacement termination or solder pin
  • the area shown here is of the crimp type with wings 50, 51 crimping on a stripped termination of a conductor and wings 52, 53 of crimping on the conductor insulation.
  • the contact shown in FIGS. 2 or 4 comprises a protective cage 3 comprising the floor 4, two side walls 5, 6, a contact termination with a male contact complementary located on the front and inside the cage, the contact termination being constituted in the example represented by two elastic contact blades 8, 9 each being provided with an end portion 10, 11 directed towards the before contact.
  • the contact is made from a single side as shown in Figures 1 and 3 and for which the side walls 5, 6 are extensions laterally adjacent to the floor, along an axis transverse to contact. To form the sides of the cage, the extensions are folded along an axis parallel to the longitudinal axis of the contact.
  • the elastic contact blades are produced from lamellae connected to the rear of the side walls and extending before folding towards the rear and at an angle to the floor. This arrangement minimizes the developed surface of the contact, which makes it possible to minimize the waste of material during cutting and to increase the contact density by reducing the pitch between contacts on the strip.
  • the blades being after cutting oriented towards the rear of the contact, these are folded back from the front. Due to their biased positioning, provision is made to fold them along an axis which is not perpendicular to the longitudinal axis of the contact, which makes them parallel to the longitudinal axis of the contact after folding. So that the blades do not protrude vertically after folding the side wall to which they are connected, the blades have a width less than the height of the wall.
  • the angle made by the folding axis with an axis perpendicular to the longitudinal axis of the contact is half the angle made by the blade with the longitudinal axis of the contact before folding.
  • the blades after folding, comprise from the rear towards the front a first section 30 bearing against the lateral face to which they are connected. This section creates a double wall area with the corresponding side wall.
  • this section 30 As an extension of this section 30 the blades have an intermediate section 31 deviating from the lateral face.
  • This section forms the elastic part of the blade and will condition the contact pressure with a complementary pin or pallet contact.
  • the contact zone with the complementary contact is produced by a convex section 32.
  • the contact blade ends forward by an end section 11 bearing against a flap 20, 21 folded down from the front of the side face to which the blade is connected. The presence of this component maintains and pre-stresses the blade.
  • the flaps fix the minimum thickness of the spindle or of the pallet received between the blades and control the minimum contact force of the blades.
  • the flaps protect the contact blades and guide the spindle when it is inserted into the cage.
  • the latter may have tenons 60, 61 intended to be received in holes 62, 63 made in the floor and a ceiling of the cage.
  • the latter has a ceiling 7 visible in Figures 2 and 4.
  • the ceiling is made entirely from the side wall 6 of the contact, this wall being extended by a sidewall 24 forming the ceiling 7 by folding along a longitudinal axis, the cage thus having four sides.
  • This fin then consists of an extension of the side wall 5.
  • the means for maintaining the contact in an insulating housing for receiving this contact may comprise at least one window 25 formed on one of the sides of the cage or, as described above, at least one lug 26 produced on one of the sides of the cage.
  • the window (s) may be located on the side walls of the cage behind the blades, the lug (s) possibly being located on one or more arbitrary faces of the cage.
  • the ceiling 7 can also be produced in two parts 22, 23, each of the two parts being produced in lateral extension of the side walls 5, 6. This configuration corresponds to FIGS. 1 and 2
  • a lug 40 is provided in extension towards the rear of an element of ceiling on the side constituting the contact.
  • This lug possibly provided with a stud 41 intended to be embedded in a cutout 42 is found after folding back from the feet of the blades and protects the latter.
  • the invention is not limited to the examples described in the figures and in particular applies to an electrical contact provided with any rear connection zone and can be applied to a contact for which a single blade is disposed towards the rear .

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

The invention concerns a single-piece folded cut out female electric contact (1) comprising longitudinally a rear zone to be connected to an electric conductor, a protective cage comprising a floor (4), two side walls (5, 6), and, on the front, a contact terminal with a matching male contact, the contact terminal comprising at least an elastic contact blade (8, 9) provided with a terminal part (10, 11) oriented towards the front of the contact, the side walls (5, 6) being laterally adjacent to the floor and folded back along a longitudinal axis, the elastic contact blade being made from a lamination connected to the rear of a side wall and extending before being folded towards the rear of the contact.

Description

CONTACT ELECTRIQUE FEMELLE FEMALE ELECTRIC CONTACT
L'invention concerne un contact électrique femelle et notamment un contact électrique du type comprenant une zone de raccordement à un conducteur électrique et une terminaison de contact avec un contact mâle complémentaire .The invention relates to a female electrical contact and in particular an electrical contact of the type comprising a zone for connection to an electrical conductor and a contact termination with a complementary male contact.
De nombreux contacts électriques femelles sont connus et notamment des contacts dont la terminaison de contact avec un contact complémentaire comporte des lames de contact élastiques disposées à l'intérieur d'une structure de protection formant cage de protection soit complète autour des lames soit partielle autour de 1 ' avant ou de 1 ' arrière des lames .Numerous female electrical contacts are known and in particular contacts whose contact termination with a complementary contact comprises elastic contact blades disposed inside a protective structure forming a protective cage either complete around the blades or partial around 1 'front or 1' back of the blades.
Un contact électrique femelle connu de type monobloc avec cage de protection est décrit par exemple dans le document EP 0 310 487. Ce contact monobloc est constitué à partir d'un flanc métallique unique et comporte deux lames de contact repliées à partir d'éléments de plafond de la cage, selon des axes parallèle à l'axe principal du contact, selon un pli à 180°, les lames comportant ainsi des parties de raccordement a l'élément de plafond épousant le profil interne de la cage au niveau de l'élément de plafond et des parois latérales de la cage.A known female electrical contact of the monobloc type with protective cage is described, for example, in document EP 0 310 487. This monobloc contact is formed from a single metal flank and comprises two contact blades folded from elements of ceiling of the cage, along axes parallel to the main contact axis, in a 180 ° fold, the blades thus comprising parts for connection to the ceiling element conforming to the internal profile of the cage at the level of the ceiling element and side walls of the cage.
Dans ce contact, des volets de mise en précontrainte des lames de contact élastiques et de guidage du contact mâle complémentaires sont réalisés par pliage à partir de l'avant des parois latérales de la cage.In this contact, shutters for prestressing the elastic contact blades and for guiding the complementary male contact are produced by folding from the front of the side walls of the cage.
Ce contact offre une très bonne protection des lames de contact et une rigidité importante de la cage mais nécessit une largeur de bande métallique importante pour sa réalisation.This contact provides very good protection of the contact blades and significant stiffness of the cage but requires a large metal strip width for its realization.
Une réalisation postérieure au brevet EP 0 310 487 est par ailleurs décrite dans le document FR 2 751 793. Cette réalisation est bâtie dans une direction longitudinale à partir d'un flanc unique, et comporte dans le prolongement du plancher en avant des lames une structure qui une fois repliée selon un axe perpendiculaire à l'axe longitudinal du contact forme une paroi frontale, cette paroi frontale étant percée pour former un cadre muni de volets de pré-contrainte des lames de contact et se prolongeant par des éléments de cage de protection des lames de contact comportant des zones d'appui pour des ergots de verrouillage venant du boîtier.An embodiment subsequent to patent EP 0 310 487 is also described in document FR 2 751 793. This embodiment is built in a longitudinal direction from a single flank, and comprises, in the extension of the floor in front of the blades, a structure which once folded along an axis perpendicular to the longitudinal axis of the contact forms a front wall, this front wall being pierced to form a frame provided with pre-stressing flaps of the contact blades and extended by protective cage elements contact blades having support zones for locking lugs coming from the housing.
Une telle réalisation pour laquelle des éléments de parois de cage comportant des zones d'appui pour les ergots de verrouillage venant du boîtier sont raccordés au corps du contact par de fines branches pliées au niveau des sommets d'un cadre introduit un risque de rupture de ces branches et des contraintes importantes au niveau de ces branches notamment dans le cas de contacts utilisés dans des applications automobiles pour lesquels une section de contact de l'ordre de un à quatre millimètres carrés est fréquente.Such an embodiment for which cage wall elements comprising support zones for the locking lugs coming from the housing are connected to the contact body by thin branches bent at the tops of a frame introduces a risk of breaking of these branches and significant constraints at the level of these branches in particular in the case of contacts used in automotive applications for which a contact section of the order of one to four square millimeters is frequent.
Par ailleurs une protection complète des lames par repli de l'avant vers l'arrière d'une structure allongée conduit à une augmentation de la largeur de la bande métallique utilisée et à une augmentation importante de la course des outils de coupe et de cambrage pouvant limiter la vitesse de fabrication et introduire des défauts de régularité et de qualité des contacts obtenus.Furthermore, complete protection of the blades by folding from the front to the rear of an elongated structure leads to an increase in the width of the metal strip used and to a significant increase in the stroke of the cutting and bending tools which can limit the speed of manufacture and introduce irregularities and quality of the contacts obtained.
De façon à garantir une bonne protection de la totalité des lames de contact tout en maintenant une grande rigidité du contact 1 ' invention propose un contact électrique femelle découpé plié monobloc comportant longitudinalement une zone arrière de raccordement à un conducteur électrique, une cage de protection comportant un plancher deux parois latérales, et, sur l'avant, une terminaison de contact avec un contact mâle complémentaire, la terminaison de contact comprenant au moins une lame de contact élastique munie d'une partie terminale dirigée vers l'avant du contact, les parois latérales étant attenantes au plancher et repliées selon un axe longitudinal, contact pour lequel ladite lame de contact élastique est réalisée à partir d'une lamelle reliée à l'arrière d'une paroi latérale de la cage et s'étend vers l'arrière avant pliage.In order to guarantee good protection of all the contact blades while maintaining a large contact stiffness 1 invention provides a female electrical contact cut folded in one piece having longitudinally a rear area for connection to an electrical conductor, a protective cage having a floor two side walls, and, on the front, a contact termination with a complementary male contact, the contact termination comprising at least one elastic contact blade provided with an end portion directed towards the front of the contact, the side walls being contiguous to the floor and folded along a longitudinal axis, contact for which said blade elastic contact is made from a strip connected to the rear of a side wall of the cage and extends backwards before folding.
Avantageusement la lame est constituée à partir d'une lamelle découpée en biais par rapport au plancher.Advantageously, the blade is formed from a strip cut obliquely relative to the floor.
Le contact peut comporter un volet de maintien de la partie terminale de la lame en pré-contrainte ce volet étant replié depuis l'avant d'une paroi latérale de la cage .The contact may include a shutter for holding the terminal part of the pre-stressed blade, this shutter being folded from the front of a side wall of the cage.
Avantageusement au moins une des parois latérales est prolongée par un flanc destiné à former un plafond par pliage selon des axes longitudinaux la cage ayant ainsi quatre côtés.Advantageously, at least one of the side walls is extended by a sidewall intended to form a ceiling by folding along longitudinal axes, the cage thus having four sides.
Plus particulièrement le contact peut comporter des moyens de maintien dans un boîtier porte contact, ces moyens pouvant comporter soit au moins une fenêtre ménagée dans une paroi latérale soit au moins un ergot réalisé sur l'un des côtés de la cage.More particularly, the contact may include means for holding in a contact-carrying housing, these means possibly comprising either at least one window formed in a side wall or at least one lug produced on one of the sides of the cage.
Préférablement le contact comporte deux lames de contact élastiques en vis à vis. Avantageusement les lames de contact sont rabattues selon un axe non perpendiculaire à l'axe longitudinal du contact. Alternativement les lames sont rabattues selon un axe perpendiculaire puis gauchies pour s ' étendre parallèlement à l'axe longitudinal du contact.Preferably the contact comprises two elastic contact blades facing each other. Advantageously, the contact blades are folded along an axis which is not perpendicular to the longitudinal axis of the contact. Alternatively, the blades are folded along a perpendicular axis and then warped to extend parallel to the longitudinal axis of the contact.
Les lames peuvent après pliage comporter de l'arrière vers 1 ' avant une section en appui contre la face latérale à laquelle elles sont reliées, une section s ' écartant de la face latérale, une section convexe formant zone de contact et une section terminale d'appui d'un volet rabattu de l'avant de la face latérale à laquelle elles sont reliées.The blades can, after folding, comprise from the rear towards the front a section bearing against the lateral face to which they are connected, a section deviating from the lateral face, a convex section forming a contact zone and a terminal section d 'support of a flap folded from the front of the side face to which they are connected.
En mode de réalisation particulier de l'invention, au moins l'une des parois latérales est prolongée par un flanc destiné à former un plafond par pliage selon au moins un axe longitudinal, ce flanc étant prolongé vers l'arrière par une patte destinée après pliage à former une paroi d'appui d'un élément de verrouillage complémentaire en retrait des zones de pliage des lames.In a particular embodiment of the invention, at least one of the side walls is extended by a sidewall intended to form a ceiling by folding along at least one longitudinal axis, this sidewall being extended towards the rear by a tab intended after folding to form a bearing wall of a complementary locking element set back from the folding zones of the blades.
L'invention sera mieux comprise à la lecture de la description qui va suivre d'exemples de réalisation non limitatifs de contacts selon l'invention en référence avec les figures qui représentent:The invention will be better understood on reading the description which follows of non-limiting exemplary embodiments of contacts according to the invention with reference to the figures which represent:
En figure 1 Une vue d'un élément de bande métallique après découpe et avant pliage destiné à réaliser un premier exemple de contact selon l'invention;In Figure 1 A view of a metal strip element after cutting and before folding intended to produce a first example of contact according to the invention;
En figure 2 une vue en perspective depuis l'avant d'un premier exemple de contact selon l'invention;In Figure 2 a perspective view from the front of a first example of contact according to the invention;
En figure 3 Une vue d'un élément de bande métallique après découpe et avant pliage destiné à réaliser un deuxième exemple de contact selon l'invention; En figure 4 Une vue en perspective depuis l'avant d'un deuxième exemple de contact selon l'invention;In FIG. 3 A view of a metal strip element after cutting and before folding intended to produce a second example of contact according to the invention; In Figure 4 A perspective view from the front of a second example of contact according to the invention;
En figure 5 Une section d'un contact selon l'invention dans une première phase de pliage intermédiaire;In Figure 5 A section of a contact according to the invention in a first intermediate folding phase;
En figure 6 Une section d'un contact selon l'invention dans une deuxième phase de pliage intermédiaire.In Figure 6 A section of a contact according to the invention in a second intermediate folding phase.
Le contact électrique femelle 1 visible par exemple en figure 2 est du type découpé plié monobloc comportant longitudinalement une zone arrière 2 de raccordement à un conducteur électrique. Bien que d'autres types de raccordement tels que terminaison à déplacement d'isolant ou picot à souder soient envisageables, la zone représentée ici est du type à sertissage avec des ailes 50, 51 de sertissage sur un terminaison dénudée d'un conducteur et des ailes 52, 53 de sertissage sur l'isolant du conducteur.The female electrical contact 1 visible for example in FIG. 2 is of the cut-out folded monobloc type comprising longitudinally a rear zone 2 for connection to an electrical conductor. Although other types of connection such as insulation displacement termination or solder pin are possible, the area shown here is of the crimp type with wings 50, 51 crimping on a stripped termination of a conductor and wings 52, 53 of crimping on the conductor insulation.
Reliée à cette zone de raccordement par une zone de liaison en continuité du plancher 4 le contact représenté en figures 2 ou 4 comporte une cage 3 de protection comportant le plancher 4, deux parois latérales 5, 6, une terminaison de contact avec un contact mâle complémentaire se trouvant sur l'avant et à l'intérieur de la cage, la terminaison de contact étant constituée dans l'exemple représenté par deux lames de contact élastiques 8, 9 chacune étant munie d'une partie terminale 10, 11 dirigée vers l'avant du contact.Connected to this connection zone by a connection zone in continuity with the floor 4, the contact shown in FIGS. 2 or 4 comprises a protective cage 3 comprising the floor 4, two side walls 5, 6, a contact termination with a male contact complementary located on the front and inside the cage, the contact termination being constituted in the example represented by two elastic contact blades 8, 9 each being provided with an end portion 10, 11 directed towards the before contact.
Le contact est réalisé à partir d'un flanc unique comme représenté en figures 1 et 3 et pour lequel les parois latérales 5, 6 sont des prolongements latéralement attenant au plancher, selon un axe transversal au contact. Pour former les côtés de la cage, les prolongements sont repliés selon un axe parallèle à l'axe longitudinal du contact.The contact is made from a single side as shown in Figures 1 and 3 and for which the side walls 5, 6 are extensions laterally adjacent to the floor, along an axis transverse to contact. To form the sides of the cage, the extensions are folded along an axis parallel to the longitudinal axis of the contact.
Toujours selon les figures 1 et 3 relatives à un contact muni de deux lames de contact symétriques en vis à vis, les lames de contact élastiques sont réalisées à partir de lamelles reliées à l'arrière des parois latérales et s ' étendant avant pliage vers l'arrière et en biais par rapport au plancher. Cette disposition minimise la surface développée du contact ce qui permet de minimiser le rebut de matière lors de la découpe et d'augmenter la densité de contacts en réduisant le pas entre contacts sur la bande.Still according to FIGS. 1 and 3 relating to a contact provided with two symmetrical contact blades facing each other, the elastic contact blades are produced from lamellae connected to the rear of the side walls and extending before folding towards the rear and at an angle to the floor. This arrangement minimizes the developed surface of the contact, which makes it possible to minimize the waste of material during cutting and to increase the contact density by reducing the pitch between contacts on the strip.
Pour réaliser le contact, les lames se trouvant après découpe orientées vers l'arrière du contact, celles ci sont rabattues de l'arrière vers l'avant. Du fait de leur positionnement en biais il est prévu de les replier selon un axe non perpendiculaire à 1 ' axe longitudinal du contact ce qui permet de les rendre parallèle à l'axe longitudinal du contact après pliage. De façon à ce que les lames ne dépassent pas verticalement après pliage de la paroi latérale à laquelle elles sont reliées, les lames ont une largeur inférieure à la hauteur de la paroi. L'angle que fait l'axe de pliage avec un axe perpendiculaire à l'axe longitudinal du contact est la moitié de l'angle que fait la lame avec l'axe longitudinal du contact avant pliage.To make the contact, the blades being after cutting oriented towards the rear of the contact, these are folded back from the front. Due to their biased positioning, provision is made to fold them along an axis which is not perpendicular to the longitudinal axis of the contact, which makes them parallel to the longitudinal axis of the contact after folding. So that the blades do not protrude vertically after folding the side wall to which they are connected, the blades have a width less than the height of the wall. The angle made by the folding axis with an axis perpendicular to the longitudinal axis of the contact is half the angle made by the blade with the longitudinal axis of the contact before folding.
Pour éviter d'avoir une protubérance non perpendiculaire en arrière de la cage au niveau du pli des lames il est possible de rabattre les lames selon un axe perpendiculaire à l'axe longitudinal du contact puis de gauchir les lames pour qu'elles s'étendent parallèlement à 1 ' axe longitudinal du contact . Les lames, après pliage, comportent de l'arrière vers l'avant une première section 30 en appui contre la face latérale à laquelle elles sont reliées. Cette section crée une zone de double paroi avec la paroi latérale correspondante.To avoid having a non-perpendicular protuberance behind the cage at the level of the fold of the blades, it is possible to fold the blades along an axis perpendicular to the longitudinal axis of the contact then to warp the blades so that they extend parallel to the longitudinal axis of the contact. The blades, after folding, comprise from the rear towards the front a first section 30 bearing against the lateral face to which they are connected. This section creates a double wall area with the corresponding side wall.
En prolongement de cette section 30 les lames présentent une section intermédiaire 31 s 'écartant de la face latérale. Cette section forme la partie élastique de la lame et va conditionner la pression de contact avec un contact broche ou palette complémentaire. La zone de contact avec le contact complémentaire est réalisée par une section convexe 32.As an extension of this section 30 the blades have an intermediate section 31 deviating from the lateral face. This section forms the elastic part of the blade and will condition the contact pressure with a complementary pin or pallet contact. The contact zone with the complementary contact is produced by a convex section 32.
La lame de contact se termine vers l'avant par une section terminale 11 d'appui contre un volet 20, 21 rabattu de l'avant de la face latérale à laquelle la lame est reliée. La présence de ce volet réalise un maintien et une pré-contrainte de la lame.The contact blade ends forward by an end section 11 bearing against a flap 20, 21 folded down from the front of the side face to which the blade is connected. The presence of this component maintains and pre-stresses the blade.
Dans le cas d'un contact avec deux lames selon l'invention disposées en vis à vis, les volets fixent l'épaisseur minimale de la broche ou de la palette reçue entre les lames et contrôlent la force minimale de contact des lames. En outre, les volets protègent les lames de contact et guident la broche lors de son introduction dans la cage.In the case of contact with two blades according to the invention arranged opposite, the flaps fix the minimum thickness of the spindle or of the pallet received between the blades and control the minimum contact force of the blades. In addition, the flaps protect the contact blades and guide the spindle when it is inserted into the cage.
De façon à rigidifier l'avant de la cage et à maintenir les volets dans une position précise, ces derniers peuvent posséder des tenons 60, 61 destinés à être reçus dans des trous 62, 63 réalisés dans le plancher et un plafond de la cage .In order to stiffen the front of the cage and to maintain the flaps in a precise position, the latter may have tenons 60, 61 intended to be received in holes 62, 63 made in the floor and a ceiling of the cage.
Pour terminer la cage, cette dernière comporte un plafond 7 visible en figures 2 et 4. En figures 3 et 4 il est décrit que le plafond est réalisé entièrement à partir de la paroi latérale 6 du contact, cette paroi étant prolongée par un flanc 24 formant le plafond 7 par pliage selon un axe longitudinal, la cage ayant ainsi quatre côtés. Dans cette réalisation il est possible de prévoir de manière connue une ailette 27 de polarisation du contact et de protection d'un ergot 26 de verrouillage du contact dans une alvéole de réception d'un boîtier isolant. Cette ailette est alors constituée d'un prolongement de la paroi latérale 5. Lors de la fermeture de la cage, il est possible de solidariser la paroi 5 et le plafond 24 par soudure ou dispositif de tenons comme connu dans le domaine.To complete the cage, the latter has a ceiling 7 visible in Figures 2 and 4. In Figures 3 and 4 it is described that the ceiling is made entirely from the side wall 6 of the contact, this wall being extended by a sidewall 24 forming the ceiling 7 by folding along a longitudinal axis, the cage thus having four sides. In this embodiment, it is possible to provide in a known manner a fin 27 for polarizing the contact and for protecting a lug 26 for locking the contact in a cell for receiving an insulating housing. This fin then consists of an extension of the side wall 5. When the cage is closed, it is possible to secure the wall 5 and the ceiling 24 by welding or stud device as known in the field.
Les moyens de maintien du contact dans un boîtier isolant de réception de ce contact peuvent comporter au moins une fenêtre 25 ménagée sur l'un des côtés de la cage ou comme décrit précédemment au moins un ergot 26 réalisé sur l'un des côtés de la cage.The means for maintaining the contact in an insulating housing for receiving this contact may comprise at least one window 25 formed on one of the sides of the cage or, as described above, at least one lug 26 produced on one of the sides of the cage.
La ou les fenêtres peuvent se trouver sur les parois latérales de la cage derrière les lames, le ou les ergot pouvant être situés sur une ou plusieurs faces quelconques de la cage.The window (s) may be located on the side walls of the cage behind the blades, the lug (s) possibly being located on one or more arbitrary faces of the cage.
Le plafond 7 peut aussi être réalisé en deux parties 22, 23, chacune des deux parties étant réalisée en prolongement latéral des parois latérales 5, 6. Cette configuration correspond aux figures 1 et 2The ceiling 7 can also be produced in two parts 22, 23, each of the two parts being produced in lateral extension of the side walls 5, 6. This configuration corresponds to FIGS. 1 and 2
Particulièrement visible en figure 6, dans le but de réaliser une surface d'appui pour un élément de verrouillage secondaire non représenté tel qu'une tige traversant le boîtier transversalement, une patte 40 est prévue en prolongement vers l'arrière d'un élément de plafond sur le flanc constituant le contact. Cette patte éventuellement munie d'un tenon 41 destiné à s'encastrer dans une découpe 42 se retrouve après pliage en retrait des pieds des lames et protège ces derniers.Particularly visible in Figure 6, in order to provide a bearing surface for a secondary locking element not shown such as a rod passing transversely through the housing, a lug 40 is provided in extension towards the rear of an element of ceiling on the side constituting the contact. This lug possibly provided with a stud 41 intended to be embedded in a cutout 42 is found after folding back from the feet of the blades and protects the latter.
L'invention ne se limite pas aux exemples décrits dans les figures et notamment s'applique pour un contact électrique muni d'une zone arrière de raccordement quelconque et peut s'appliquer à un contact pour lequel une seule lame est disposée vers l'arrière. The invention is not limited to the examples described in the figures and in particular applies to an electrical contact provided with any rear connection zone and can be applied to a contact for which a single blade is disposed towards the rear .

Claims

REVENDICATIONS
1 - Contact électrique femelle (1) découpé plié monobloc comportant longitudinalement une zone arrière (2) de raccordement à un conducteur électrique, une cage (3) de protection comportant un plancher (4) deux parois latérales (5, 6), et, sur l'avant, une terminaison de contact avec un contact mâle complémentaire, la terminaison de contact comportant au moins une lame de contact élastique (8, 9) munie d'une partie terminale1 - female electrical contact (1) cut folded in one piece having longitudinally a rear zone (2) for connection to an electrical conductor, a protective cage (3) comprising a floor (4) two side walls (5, 6), and, on the front, a contact termination with a complementary male contact, the contact termination comprising at least one elastic contact blade (8, 9) provided with an end portion
(10, 11) dirigée vers l'avant du contact, les parois latérales (5, 6) étant latéralement attenantes au plancher et repliées selon un axe longitudinal, caractérisé en ce que ladite lame de contact élastique est réalisée à partir d'une lamelle reliée à l'arrière d'une paroi latérale qui s'étend avant pliage vers 1 ' arrière du contact .(10, 11) directed towards the front of the contact, the lateral walls (5, 6) being laterally adjacent to the floor and folded along a longitudinal axis, characterized in that said elastic contact blade is produced from a strip connected to the rear of a side wall which extends before folding towards the rear of the contact.
2 - Contact électrique selon la revendication 1 caractérisé en ce que la lame est réalisée à partir d'une lamelle découpée en biais par rapport au plancher.2 - Electrical contact according to claim 1 characterized in that the blade is made from a strip cut obliquely relative to the floor.
3 - Contact femelle selon l'une des revendications 1 ou 2 caractérisé en ce qu'il comporte au moins un volet (20, 21) de maintien de la partie terminale de la lame en précontrainte ce volet étant replié depuis l'avant d'une paroi latérale.3 - Female contact according to one of claims 1 or 2 characterized in that it comprises at least one flap (20, 21) for holding the terminal part of the blade in prestressing this flap being folded from the front of a side wall.
4 - Contact femelle selon l'une des revendications 1 à 3 caractérisé en ce que au moins l'une des parois latérales est prolongée par un flanc (22, 23, 24) destiné à former un plafond (7) par pliage selon au moins un axe longitudinal, la cage ayant ainsi quatre côtés. 5 - Contact femelle selon l'une des revendications précédentes caractérisé en ce qu'il comporte des moyens (25, 26) de maintien dans un boîtier porte contact.4 - Female contact according to one of claims 1 to 3 characterized in that at least one of the side walls is extended by a flank (22, 23, 24) intended to form a ceiling (7) by folding according to at least a longitudinal axis, the cage thus having four sides. 5 - Female contact according to one of the preceding claims characterized in that it comprises means (25, 26) for holding in a contact holder housing.
6 - Contact femelle selon la revendication 5 caractérisé en ce que les moyens de maintien comportent au moins une fenêtre (25) ménagée sur l'un des côtés de la cage.6 - female contact according to claim 5 characterized in that the holding means comprise at least one window (25) formed on one of the sides of the cage.
7 - Contact femelle selon la revendication 5 caractérisé en ce que les moyens de maintien comportent au moins un ergot (26) réalisé sur l'un des côtés de la cage.7 - female contact according to claim 5 characterized in that the holding means comprise at least one lug (26) formed on one of the sides of the cage.
8 - Contact femelle selon l'une des revendications précédentes caractérisé en ce que les lames de contact sont rabattues selon un axe non perpendiculaire à l'axe longitudinal du contact .8 - Female contact according to one of the preceding claims characterized in that the contact blades are folded along an axis not perpendicular to the longitudinal axis of the contact.
9 - Contact femelle selon l'une des revendications 1 à 7 caractérisé en ce que la lames est rabattue selon un axe perpendiculaire puis gauchie pour s'étendre parallèlement à l'axe longitudinal du contact.9 - Female contact according to one of claims 1 to 7 characterized in that the blade is folded along a perpendicular axis and then warped to extend parallel to the longitudinal axis of the contact.
10 - Contact femelle selon l'une des revendications précédentes caractérisé en ce que ladite lame, après pliage, comporte de l'arrière vers l'avant une première section (30) en appui contre la face latérale à laquelle elle est reliée, une section intermédiaire (31) s 'écartant de la face latérale, une section convexe (32) formant zone de contact et une section terminale (11) d'appui contre un volet rabattu de l'avant de la face latérale à laquelle elle est reliée.10 - female contact according to one of the preceding claims characterized in that said blade, after folding, comprises from the rear to the front a first section (30) bearing against the side face to which it is connected, a section intermediate (31) deviating from the side face, a convex section (32) forming a contact zone and an end section (11) bearing against a flap folded down from the front of the side face to which it is connected.
11 - Contact femelle selon l'une des revendications précédentes caractérisé en ce qu'il comprend deux lames (8, 9) en vis à vis. 12 - Contact femelle selon l'une des revendications précédentes caractérisé en ce que au moins l'une des parois latérales étant prolongée par un flanc (22, 23, 24) destiné à former un plafond (7) par pliage selon au moins un axe longitudinal, ce flanc est prolongé vers l'arrière par une patte (40) destinée après pliage à former une paroi d'appui d'un élément de verrouillage complémentaire en retrait des zones de pliage des lames. 11 - Female contact according to one of the preceding claims characterized in that it comprises two blades (8, 9) facing each other. 12 - female contact according to one of the preceding claims characterized in that at least one of the side walls being extended by a sidewall (22, 23, 24) intended to form a ceiling (7) by folding along at least one axis longitudinal, this flank is extended rearward by a tab (40) intended after folding to form a bearing wall of a complementary locking element set back from the folding zones of the blades.
EP02740757A 2001-06-29 2002-06-28 Female electric contact Withdrawn EP1399991A2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0108840A FR2826785B1 (en) 2001-06-29 2001-06-29 FEMALE ELECTRIC CONTACT
FR0108840 2001-06-29
PCT/EP2002/007190 WO2003003524A2 (en) 2001-06-29 2002-06-28 Female electric contact

Publications (1)

Publication Number Publication Date
EP1399991A2 true EP1399991A2 (en) 2004-03-24

Family

ID=8865096

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02740757A Withdrawn EP1399991A2 (en) 2001-06-29 2002-06-28 Female electric contact

Country Status (6)

Country Link
US (1) US7223134B2 (en)
EP (1) EP1399991A2 (en)
JP (1) JP2004531045A (en)
KR (1) KR20040014962A (en)
FR (1) FR2826785B1 (en)
WO (1) WO2003003524A2 (en)

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Publication number Priority date Publication date Assignee Title
DE102008017043B3 (en) 2008-04-03 2009-09-03 Lear Corp., Southfield Electrical bushing contact producing method for receiving plug contact for electrical connection in motor vehicle environment, involves folding contact arm such that arm forms elastic spring, which contacts plug contact
CN102088136A (en) * 2009-12-03 2011-06-08 泰科电子(上海)有限公司 Electric connection terminal
JP6816074B2 (en) * 2018-08-29 2021-01-20 株式会社オートネットワーク技術研究所 Terminals and connectors

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FR2559624B1 (en) * 1984-02-14 1986-05-23 Labinal ELECTRIC CONTACT MEMBER
FR2621180B1 (en) 1987-09-28 1990-01-12 Francelco Sa CAGE TYPE ELECTRIC CONTACT TERMINAL
FR2725835A1 (en) * 1994-10-13 1996-04-19 Framatome Connectors Int Low voltage electrical contact for use in motor vehicle wiring connection
FR2749442B1 (en) * 1996-06-03 1998-07-10 Framatome Connectors Int FEMALE ELECTRIC CONTACT TERMINAL WITH REINFORCED STRUCTURE
DE19705509C2 (en) * 1997-02-13 1999-04-29 Siemens Ag One-piece contact spring
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FR2769413B1 (en) * 1997-10-03 1999-11-26 Proner Comatel Sa FEMALE ELECTRIC CONTACT
JP2000173703A (en) * 1998-12-08 2000-06-23 Yazaki Corp Electric contact
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Also Published As

Publication number Publication date
US20040235366A1 (en) 2004-11-25
FR2826785B1 (en) 2004-06-04
WO2003003524A3 (en) 2003-03-06
JP2004531045A (en) 2004-10-07
WO2003003524A2 (en) 2003-01-09
US7223134B2 (en) 2007-05-29
KR20040014962A (en) 2004-02-18
FR2826785A1 (en) 2003-01-03

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