EP0465291B1 - Electrical contact element - Google Patents

Electrical contact element Download PDF

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Publication number
EP0465291B1
EP0465291B1 EP91401649A EP91401649A EP0465291B1 EP 0465291 B1 EP0465291 B1 EP 0465291B1 EP 91401649 A EP91401649 A EP 91401649A EP 91401649 A EP91401649 A EP 91401649A EP 0465291 B1 EP0465291 B1 EP 0465291B1
Authority
EP
European Patent Office
Prior art keywords
electrical contact
contact member
tongue
flap
intended
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
EP91401649A
Other languages
German (de)
French (fr)
Other versions
EP0465291A1 (en
Inventor
Jean Ittah
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.)
Safran Electrical and Power SAS
Original Assignee
Labinal SA
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 Labinal SA filed Critical Labinal SA
Publication of EP0465291A1 publication Critical patent/EP0465291A1/en
Application granted granted Critical
Publication of EP0465291B1 publication Critical patent/EP0465291B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section
    • 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
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/2445—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives
    • H01R4/245—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the additional means having two or more slotted flat portions

Definitions

  • the present invention relates to an electrical contact member intended to provide an electrical connection between an electrical conductor, on the one hand, and a male electrical contact member, on the other hand.
  • the contact member according to the invention is of the type produced from a metal blank which is a good conductor of electricity and endowed with a certain elasticity, cut and folded to present, on the one hand, a means of insulation displacement connection and, on the other hand, a conduit intended to receive the male electrical contact member, said blank being cut to present a core with, in the vicinity of one end, two tabs arranged on each side of the blank, said tabs being folded to extend perpendicular to the core and each having, on the side of the free end of the core, a slot to form the insulating displacement connecting member.
  • the present invention aims to improve the structure of the organ, as defined in the characterizing part of claim 1.
  • a contact member of very practical use is thus produced, which ensures a perfect electrical connection.
  • the flap has slots intended to be crossed by the bars of the corresponding edges of the tabs.
  • the tongue has a stamped part forming a projecting part opposite the internal face. of the flap. This improves the contact between the tongue and the male organ.
  • the flap comprises a stamped forming a projection on its internal face turned opposite the tongue.
  • the male organ is perfectly enclosed between the tongue and the flap.
  • the tongue is arched so as to tend to approach the internal face of the flap, the edge of the core opposite to that provided with the tongue comprising retaining means.
  • the free end of the tongue has a notch determining two projections while the edge of the core, opposite to that secured to the tongue, has a T-shaped notch having a central branch intended to fit into the notch and two lateral branches constituting stops for the projections.
  • Figure 1 is a plan view showing an electrical contact member cut from a blank of metallic material good conductor of electricity.
  • Figures 2 and 3 are perspective views showing different stamping phases of the blank of Figure 1 to obtain the contact member.
  • Figure 4 is a perspective view of the electrical contact member.
  • Figure 5 is a sectional view along line 5-5 of Figure 4.
  • Figure 1 shows a contact member according to the invention, which was made in a blank of an elastic metallic material good conductor of electricity.
  • the member which bears the reference 1 at one end, comprises on both sides of a core 6 two legs 2 and 2 a , the leg 2 having a slot 3 on the side of the free end of the member 1, while its free edge is cut to form a bar 4 and a lug 5.
  • Tab 2 a is formed in the same manner that the leg 2 and comprises a slot 3 has a web 4 a and 5 a pin.
  • the legs 2 and 2 a are intended to be folded along lines 7 to extend perpendicular to the core 6.
  • a T-shaped notch is formed to form a retaining hook 14 intended to extend perpendicular to the core and whose central branch 14 a is intended to be inserted in the notch 10 after bending the tongue 8, while the lateral branches are intended to constitute stops for the projections 11.
  • the core 6 is terminated by a flap 16 which comprises, in the vicinity of its free end, two slots 17 and in its central part, a stamped portion 18.
  • the flap 16 has a width slightly greater than the interval separating the two legs 2 and 2 a and the slots 17 are separated by a distance corresponding to the distance separating the two bars 4, 4 a .
  • the tabs 2 and 2 a are bent at right angles to the core 6, then the tongue 8 is folded down to extend above the core 6, the hook 14 then being folded so that its branches 14 b are placed above the projections 11. Finally, the flap 16 is folded so that the slots 17 are located in line with the bars 4, 4 a , these passing through said slots and being folded against the corresponding face of said flap 16. A conduit 19 is thus produced for receiving a male electrical contact member 20.
  • the tongue 8 is folded so that, by the elasticity of the material, it tends to move away from the core, the branches 14 b constituting stops which, by cooperating with the projections 11, make it possible to limit the action elastic in order to provide in the duct 19 a free space between the internal face of the flap 16 and the tongue 8, said libret space being sufficient to allow insertion of the male flat contact member 20, the latter being pinched elastically between , on the one hand, the pressed 9 and, on the other hand, the pressed 18.
  • the electrical contact member according to the invention is intended to be inserted in a housing of a housing insulator, the pins 5 and 5a penetrating into the thickness of the material of the housing to ensure the locking of said member.
  • the legs 2 and 2a with the slots 3 and 3a constitute an electrical connecting member referred to as "insulation displacement".
  • the width of the slots 3, 3 a is in fact less than the section of an electrical conductor 21 coated with an insulating sheath, so that, when the latter is inserted into the slots, the edges of the latter cut the insulator and bear against the conductor's soul.
  • the insulating housing may include means for locking the conductor 21 so that, once inserted into the slots 3, 3 a , it cannot be released.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Installation Of Bus-Bars (AREA)

Description

La présente invention vise un organe de contact électrique destiné à assurer une liaison électrique entre un conducteur électrique, d'une part, et un organe mâle de contact électrique, d'autre part.The present invention relates to an electrical contact member intended to provide an electrical connection between an electrical conductor, on the one hand, and a male electrical contact member, on the other hand.

L'organe de contact, selon l'invention, est du type réalisé à partir d'un flan métallique bon conducteur de l'électricité et doué d'une certaine élasticité, découpé et plié pour présenter, d'une part, un moyen de liaison à déplacement d'isolant et, d'autre part, un conduit destiné à recevoir l'organe mâle de contact électrique, ledit flan étant découpé pour présenter une âme avec, au voisinage d'une extrémité, deux pattes disposées de chaque côté du flan, lesdites pattes étant pliées pour s'étendre perpendiculairement à l'âme et présentant, chacune, du côté de l'extrémité libre de l'âme une fente pour former l'organe de liaison à déplacement d'isolant.The contact member according to the invention is of the type produced from a metal blank which is a good conductor of electricity and endowed with a certain elasticity, cut and folded to present, on the one hand, a means of insulation displacement connection and, on the other hand, a conduit intended to receive the male electrical contact member, said blank being cut to present a core with, in the vicinity of one end, two tabs arranged on each side of the blank, said tabs being folded to extend perpendicular to the core and each having, on the side of the free end of the core, a slot to form the insulating displacement connecting member.

Un organe de ce type est connu par le document EP-A- 321285.An organ of this type is known from document EP-A-321285.

La présente invention vise à améliorer la structure de l'organe, comme défini dans la partie caractérisante de la revendication 1.The present invention aims to improve the structure of the organ, as defined in the characterizing part of claim 1.

On réalise ainsi un organe de contact d'une utilisation très pratique et qui assure une parfaite connexion électrique.A contact member of very practical use is thus produced, which ensures a perfect electrical connection.

Suivant un détail constructif, le rabat présente des fentes destinées à être traversées par les barrettes des bords correspondants des pattes.According to a constructive detail, the flap has slots intended to be crossed by the bars of the corresponding edges of the tabs.

De préférence, la languette comporte un embouti formant une partie en saillie en regard de la face interne du rabat. On améliore ainsi le contact entre la languette et l'organe mâle.Preferably, the tongue has a stamped part forming a projecting part opposite the internal face. of the flap. This improves the contact between the tongue and the male organ.

Suivant encore un détail constructif, le rabat comporte un embouti formant une saillie sur sa face interne tournée en regard de la languette. Ainsi l'organe mâle est parfaitement enserré entre la languette et le rabat.According to yet another constructive detail, the flap comprises a stamped forming a projection on its internal face turned opposite the tongue. Thus the male organ is perfectly enclosed between the tongue and the flap.

Suivant encore une autre caractéristique, la languette est cambrée de manière à tendre à se rapprocher de la face interne du rabat, le bord de l'âme opposé à celui pourvu de la languette comportant des moyens de retenue.According to yet another characteristic, the tongue is arched so as to tend to approach the internal face of the flap, the edge of the core opposite to that provided with the tongue comprising retaining means.

Enfin, suivant une dernière caractéristique, l'extrémité libre de la languette comporte une échancrure déterminant deux saillies tandis que le bord de l'âme, opposé à celui solidaire de la languette, comporte une entaille en forme de T présentant une branche centrale destinée à s'insérer dans l'échancrure et deux branches latérales constituant des butées pour les saillies.Finally, according to a last characteristic, the free end of the tongue has a notch determining two projections while the edge of the core, opposite to that secured to the tongue, has a T-shaped notch having a central branch intended to fit into the notch and two lateral branches constituting stops for the projections.

L'invention va maintenant être décrite avec plus de détails en se référant à un mode de réalisation particulier donné à titre d'exemple seulement et représenté aux dessins annexés, dans lesquels :The invention will now be described in more detail with reference to a particular embodiment given by way of example only and shown in the accompanying drawings, in which:

Figure 1 est une vue en plan montrant un organe de contact électrique découpé dans un flan de matière métallique bonne conductrice de l'électricité.Figure 1 is a plan view showing an electrical contact member cut from a blank of metallic material good conductor of electricity.

Figures 2 et 3 sont des vues en perspective montrant différentes phases d'emboutissage du flan de la figure 1 pour obtenir l'organe de contact.Figures 2 and 3 are perspective views showing different stamping phases of the blank of Figure 1 to obtain the contact member.

Figure 4 est une vue en perspective de l'organe de contact électrique.Figure 4 is a perspective view of the electrical contact member.

Figure 5 est une vue en coupe suivant la ligne 5-5 de la figure 4.Figure 5 is a sectional view along line 5-5 of Figure 4.

La figure 1 montre un organe de contact, selon l'invention, qui a été réalisé dans un flan d'une matière métallique élastique bonne conductrice de l'électricité.Figure 1 shows a contact member according to the invention, which was made in a blank of an elastic metallic material good conductor of electricity.

L'organe, qui porte la référence 1 à une extrémité, comporte de part et d'autre d'une âme 6 deux pattes 2 et 2a, la patte 2 présentant une fente 3 du côté de l'extrémité libre de l'organe 1, tandis que son bord libre est découpé pour former une barrette 4 et un ergot 5.The member, which bears the reference 1 at one end, comprises on both sides of a core 6 two legs 2 and 2 a , the leg 2 having a slot 3 on the side of the free end of the member 1, while its free edge is cut to form a bar 4 and a lug 5.

La patte 2a est conformée de la même manière que la patte 2 et comporte une fente 3a, une barrette 4a et un ergot 5a.Tab 2 a is formed in the same manner that the leg 2 and comprises a slot 3 has a web 4 a and 5 a pin.

Les pattes 2 et 2a sont destinées à être pliées le long de lignes 7 pour s'étendre perpendiculairement à l'âme 6.The legs 2 and 2 a are intended to be folded along lines 7 to extend perpendicular to the core 6.

En arrière des pattes 2 et 2a du côté de la patte 2a l'âme 6 est prolongée perpendiculairement à l'axe longitudinal de l'âme 6 par une languette 8 présentant un embouti 9 et, à son extrémité libre, une échancrure 10 déterminant deux saillies 11.Behind the legs 2 and 2 to the side of the tab 2 has the core 6 is extended perpendicularly to the longitudinal axis of the core 6 by a tongue 8 having a dished 9 and, at its free end, an indentation 10 determining two projections 11.

Du côté opposé à la languette 8 est pratiquée une entaille en forme de T pour former un crochet de retenue 14 destiné à s'étendre perpendiculairement à l'âme et dont la branche centrale 14a est destinée à s'insérer dans l'échancrure 10 après cambrage de la languette 8, tandis que les branches latérales sont destinées à constituer des butées pour les saillies 11.On the side opposite to the tongue 8, a T-shaped notch is formed to form a retaining hook 14 intended to extend perpendicular to the core and whose central branch 14 a is intended to be inserted in the notch 10 after bending the tongue 8, while the lateral branches are intended to constitute stops for the projections 11.

Du côté opposé aux pattes 2 et 2a, l'âme 6 est terminée par un rabat 16 qui comporte, au voisinage de son extrémité libre, deux fentes 17 et dans sa partie centrale, un embouti 18.On the side opposite to the legs 2 and 2 a , the core 6 is terminated by a flap 16 which comprises, in the vicinity of its free end, two slots 17 and in its central part, a stamped portion 18.

Le rabat 16 a une largeur légèrement supérieure à l'intervalle séparant les deux pattes 2 et 2a et les fentes 17 sont séparées d'une distance correspondant à la distance séparant les deux barrettes 4, 4a.The flap 16 has a width slightly greater than the interval separating the two legs 2 and 2 a and the slots 17 are separated by a distance corresponding to the distance separating the two bars 4, 4 a .

Comme on le voit aux figures 2, 3 et 4, les pattes 2 et 2a sont pliées à angle droit par rapport à l'âme 6, puis la languette 8 est rabattue pour s'étendre au-dessus de l'âme 6, le crochet 14 étant ensuite plié pour que ses branches 14b viennent se placer au-dessus des saillies 11. Enfin, le rabat 16 est plié afin que les fentes 17 viennent se situer au droit des barrettes 4, 4a, celles-ci traversant lesdites fentes et étant rabattues contre la face correspondante dudit rabat 16. On réalise ainsi un conduit 19 destiné à recevoir un organe mâle de contact électrique 20.As can be seen in FIGS. 2, 3 and 4, the tabs 2 and 2 a are bent at right angles to the core 6, then the tongue 8 is folded down to extend above the core 6, the hook 14 then being folded so that its branches 14 b are placed above the projections 11. Finally, the flap 16 is folded so that the slots 17 are located in line with the bars 4, 4 a , these passing through said slots and being folded against the corresponding face of said flap 16. A conduit 19 is thus produced for receiving a male electrical contact member 20.

La languette 8 est pliée de manière que, par l'élasticité de la matière, elle tende à s'écarter de l'âme, les branches 14b constituant des butées qui, en coopérant avec les saillies 11, permettent de limiter l'action élastique afin de ménager dans le conduit 19 un espace libre entre la face interne du rabat 16 et la languette 8, ledit espace libret étant suffisant pour permettre l'insertion de l'organe mâle de contact méplat 20, celui-ci étant pincé élastiquement entre, d'une part, l'embouti 9 et, d'autre part, l'embouti 18.The tongue 8 is folded so that, by the elasticity of the material, it tends to move away from the core, the branches 14 b constituting stops which, by cooperating with the projections 11, make it possible to limit the action elastic in order to provide in the duct 19 a free space between the internal face of the flap 16 and the tongue 8, said libret space being sufficient to allow insertion of the male flat contact member 20, the latter being pinched elastically between , on the one hand, the pressed 9 and, on the other hand, the pressed 18.

L'organe de contact électrique, selon l'invention, est destiné à être inséré dans un logement d'un boîtier isolant, les ergots 5 et 5a pénétrant dans l'épaisseur de la matière du logement pour assurer le verrouillage dudit organe.The electrical contact member according to the invention is intended to be inserted in a housing of a housing insulator, the pins 5 and 5a penetrating into the thickness of the material of the housing to ensure the locking of said member.

Les pattes 2 et 2a avec les fentes 3 et 3a constituent un organe de liaison électrique appelé "à déplacement d'isolant". La largeur des fentes 3, 3a est en effet inférieure à la section d'un conducteur électrique 21 revêtue d'une gaine isolante, de sorte que, lorsque celui-ci est inséré dans les fentes, les bords de celles-ci découpent l'isolant et portent contre l'âme du conducteur.The legs 2 and 2a with the slots 3 and 3a constitute an electrical connecting member referred to as "insulation displacement". The width of the slots 3, 3 a is in fact less than the section of an electrical conductor 21 coated with an insulating sheath, so that, when the latter is inserted into the slots, the edges of the latter cut the insulator and bear against the conductor's soul.

Le boîtier isolant peut comporter des moyens pour bloquer le conducteur 21 de manière, qu'une fois inséré dans les fentes 3, 3a, il ne puisse être dégagé.The insulating housing may include means for locking the conductor 21 so that, once inserted into the slots 3, 3 a , it cannot be released.

Bien entendu, l'invention n'est pas limitée au mode de réalisation qui vient d'être décrit et représenté. On pourra y apporter de nombreuses modifications de détail sans sortir pour cela du cadre de l'invention.Of course, the invention is not limited to the embodiment which has just been described and shown. Many detailed modifications can be made without departing from the scope of the invention.

Claims (6)

  1. An electrical contact member intended on the one hand for ensuring
       an electrical connection between an electrical conductor (21) and a male electrical contact member (20), the said electrical contact member being produced from a metallic blank which is a good conductor of electricity and endowed with a certain elasticity and is cut out and folded in order to exhibit on the one hand a means of connection by displacement of insulation and on the other hand a passage (19) intended for receiving the male electrical contact member (20), the said blank being cut out so as to exhibit a body (6) with two feet (2, 2a) arranged on opposite sides of the blank in the vicinity of one end, the said feet being folded so as to extend perpendicularly to the body (6) and each exhibiting next the free end of the body a slit (3, 3a) in order to form the member for connection by displacement of insulation, characterized in that along its opposite edge to that adjacent to the body (6) each foot has a tab (4, 4a), the body (6) terminating in the vicinity of the end of it remote from that provided with the feet (2, 2a) in a flap (16) intended to be folded so that its free end comes to bear against the edges of the feet (2, 2a) provided with the tabs (4, 4a), the latter being turned down against the corresponding face of the said flap which with the body (6) defines the passage (19), whilst the said body is prolonged at right angles to the said passage by a tongue (8) which is intended to be folded back so as to extend into the said passage (19) and form an elastic bearing for the male mamber (20).
  2. An electrical contact member as in Claim 1, characterized in that
       the flap (16) exhibits slits (17) intended for the tabs (4, 4a) to pass through from the corresponding edges of the feet (2, 2a).
  3. An electrical contact member as in Claim 1, characterized in that
       the tongue (8) is stamped (9) to form a projecting portion opposite the inner face of the flap (16).
  4. An electrical contact member as in Claim 1, characterized in that
       the flap (16) is stamped (18) to form a projection on the inner face of it which is turned to face the tongue (8).
  5. An electrical contact member as in Claim 1, characterized in that
       the tongue (8) is cambered so as to tend to approach the inner face of the flap (16), the edge of the body remote from that provided with the tongue (8) including retention means (14b).
  6. An electrical contact member as in Claim 1, characterized in that
       the free end of the tongue (8) includes an indentation (10) which defines two projections (11) whilst the edge of the body (6) remote from that which is integral with the tongue (8) includes a T-shaped cut which exhibits a central branch (14a) intended for insertion in the indentation (10) and two branches (14b) at the sides forming stops for the projections (11).
EP91401649A 1990-07-02 1991-06-18 Electrical contact element Expired - Lifetime EP0465291B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9008332A FR2664101B1 (en) 1990-07-02 1990-07-02 ELECTRIC CONTACT MEMBER.
FR9008332 1990-07-02

Publications (2)

Publication Number Publication Date
EP0465291A1 EP0465291A1 (en) 1992-01-08
EP0465291B1 true EP0465291B1 (en) 1994-08-24

Family

ID=9398231

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91401649A Expired - Lifetime EP0465291B1 (en) 1990-07-02 1991-06-18 Electrical contact element

Country Status (4)

Country Link
EP (1) EP0465291B1 (en)
DE (1) DE69103590T2 (en)
ES (1) ES2060325T3 (en)
FR (1) FR2664101B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6369029B2 (en) * 2014-01-28 2018-08-08 オムロン株式会社 connector

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4174877A (en) * 1977-12-19 1979-11-20 Foederer Wilhelmus T Connector for flat cable
US5030132A (en) * 1987-12-17 1991-07-09 Amp Incorporated Bidirectional insulation displacement electrical contact terminal

Also Published As

Publication number Publication date
DE69103590D1 (en) 1994-09-29
ES2060325T3 (en) 1994-11-16
FR2664101B1 (en) 1993-05-21
FR2664101A1 (en) 1992-01-03
DE69103590T2 (en) 1995-01-12
EP0465291A1 (en) 1992-01-08

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