EP0649195A1 - Connection element comprising an insulating housing - Google Patents

Connection element comprising an insulating housing Download PDF

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Publication number
EP0649195A1
EP0649195A1 EP94402212A EP94402212A EP0649195A1 EP 0649195 A1 EP0649195 A1 EP 0649195A1 EP 94402212 A EP94402212 A EP 94402212A EP 94402212 A EP94402212 A EP 94402212A EP 0649195 A1 EP0649195 A1 EP 0649195A1
Authority
EP
European Patent Office
Prior art keywords
connection element
edge
insulating body
trigger guard
flat support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP94402212A
Other languages
German (de)
French (fr)
Other versions
EP0649195B1 (en
Inventor
Alain Bâle
Patrick Champion
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
Framatome Connectors International SAS
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Filing date
Publication date
Application filed by Framatome Connectors International SAS filed Critical Framatome Connectors International SAS
Publication of EP0649195A1 publication Critical patent/EP0649195A1/en
Application granted granted Critical
Publication of EP0649195B1 publication Critical patent/EP0649195B1/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
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/722—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits
    • H01R12/724—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits containing contact members forming a right angle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/7005—Guiding, mounting, polarizing or locking means; Extractors
    • H01R12/7011—Locking or fixing a connector to a PCB
    • H01R12/7017—Snap means

Definitions

  • connection element comprising an insulating bridge having a U-shaped section, said bridge having a central region and two lateral branches, as well as bent electrical contact elements having front contact regions housed in openings in the central region of the trigger guard, as well as elbow regions and rear contact regions, and a retention pin, in particular of the hot-deformable type for fixing the connection element on a flat support.
  • a contact element of the aforementioned type is marketed under the brand "METRAL" by DU PONT. It comprises a trigger guard having a relatively massive central region which carries a hot-deformable pin. Mechanical rigidity is ensured by the fact that an edge of the central region of the trigger guard as well as in the vicinity thereof, the lower edge of one of the branches bear against an edge of the printed circuit. This allows a nominal spacing of 14mm. between the lower edge of the branch and the last of the four contact rows.
  • Such an assembly has the disadvantage that, during a wave soldering operation, said branch of the trigger guard is not well protected due to the fact that it comes into contact with the edge of the printed circuit.
  • the present invention relates to a connection element which does not have the aforementioned drawback.
  • connection element of the aforementioned type characterized in that it comprises a rear insulating body surrounding the electrical contact elements on at least one zone situated between said front contact region and said elbow zone, and in that that said retention pin is integral with an edge of said rear insulating body.
  • This rear insulating body makes it possible to stiffen the electrical contact elements, and like the retention pin which can be, for example, a hot deformable pin or a force insertable pin, is no longer carried by the trigger guard, but by the rear insulating body, the trigger guard can be arranged differently from the printed circuit. It is also possible to use standard bridges.
  • said edge of the rear insulating body is substantially aligned with an outer edge of a branch of the trigger guard.
  • a connection assembly can then be implemented by mounting the bridge so that said outer edge of the branch bears on an upper face of a flat support such as a printed circuit board.
  • the assembly of the assembly is rigid, the trigger guard is located on the face opposite to that which is subjected to wave soldering and in addition it is possible to reduce the aforementioned nominal spacing, p. ex. up to 10mm. about.
  • the edge of the rear insulating body is set back relative to an external edge of a branch of the trigger guard.
  • a connection assembly can then be implemented so that the trigger guard is spaced from an outer edge of the flat support. It is thus possible to avoid wetting the trigger guard by a solder wave, since the trigger guard is entirely located outside the perimeter of the printed circuit. This can make it possible to maintain a said nominal spacing of 14 mm.
  • a connector sold under the brand METRAL has a rear part having elbow connection elements. These connection elements each have a termination 1 welded to the underside 18 of a printed circuit board 8, a straight region connecting the termination 1 to an elbow region 6 and another straight region 5 extending from the elbow 6 up to crossing a central region 2 of a trigger guard 10 in the shape of a "U", the rectilinear region 9 extending forwards by male terminations 9 disposed between the two lateral branches 3 and 4 of trigger guard 10.
  • a lateral face of the central region adjoining the branch 3 comes to bear against an upper face 17 of the printed circuit 8, and this face carries a hot-deformable pin 11 by which it is mechanically secured to the printed circuit 8 by the lower face 18 of the latter in the vicinity of its edge 19.
  • the rear face 15 of the lateral branch 3 also bears against the edge 19 of the printed circuit 8, and absorbs the rotational forces applied to the trigger guard 10.
  • a connector 20 has a female front part 12, a cable support 14 and a cable 16.
  • the dimension L1 is equal to 14 mm. This rating results from several factors: the central region 2 must be thick enough to ensure the mechanical rigidity of the assembly, and the pin 11 must be sufficiently distant from the edge 15 of the branch 3 to allow the passage of a deforming tool to hot pawn 11. It will be noted with regard to this last point that the external planar face of the branch 3 projects beyond the lower face 18 of the printed circuit 8.
  • a connector according to the invention has, at the rear part, an insulating body 40 provided with longitudinal openings 47 extending towards the rear by a constricted zone 42 and opening onto a face 43, which is here inclined to substantially 45 °.
  • the contact elements have a front termination, 49 constituted by a male pin, housed between the lateral branches 23 and 24 of a trigger guard 30 in the shape of a "U" whose central part 22 has openings crossed at 38 with force assembly by the terminations 49 which extend rearwards through a rectilinear zone 25 disposed in an opening 47, and behind the constricted zone 42 which holds it, by an elbow region 26, then another rectilinear zone 27 which is ends with a contact region (or pin) 21 inserted by force ("press-fit") in openings of a printed circuit 28.
  • the insulating block 41 has an extension 44 having a face 45 which comes to bear on the face upper 29 of the printed circuit 28 and which carries a hot deformable pin 31 which makes it possible to mechanically fix the block 41 to the printed circuit 28.
  • the lateral branch 23 may have a face 46, for example situated, as shown, at its extr miter, and which comes to bear on the upper face 29 of the printed circuit 28.
  • the insulating block 40 contributes to the mechanical rigidity of the part of the connector located at the rear of the trigger guard 30. Therefore, the trigger guard 30 used can be a standard trigger guard.
  • the trigger guard 30 is mounted on the upper face 29 of the printed circuit 28, it is fully protected during the wave soldering operation. Finally, there is no longer any need to provide as much tool clearance as in the prior art.
  • the dimension L2 between the base of the trigger guard 30 and the rear face 39 of the insulating body 40 can be of the order of 10 mm. instead of 14 mm.
  • the pin 31 owing to its arrangement on the insulating body 40 which holds the elements (25, 26, 27, 21), participates in guiding the pins 21 during the force insertion of these into the PCB holes 28.
  • connection between the trigger guard 30 and the rear insulation 40 is reinforced by the fact that the terminations 38 insertable by force of the pins 49 participate in the embedding effort between the extensions 37 of the insulation 40 and 36 of the trigger guard 30.
  • the embodiment of Figure 3 implements a bridge 30 which may be identical to that of Figure 2.
  • the connector has a rear insulating body 50 without extension such as 44.
  • the rear insulator 50 carries on its face 54 a hot-deformable pin 55 which allows it to be secured to a printed circuit 48.
  • the contact elements have male pins 59 housed between the lateral branches 23 and 24, which are force-fitted at 68 and which extend towards the rear by rectilinear zones 65 longer than the zones 25 of FIG. 2, then of the elbows 66 and finally other rectilinear zones 67 shorter than the zones 27 of FIG. 2.
  • the trigger guard 30 and the rear insulation 50 can be recessed at 36 for the trigger guard 30 and at 62 for the rear insulation 50.
  • the trigger guard 30 is spaced from the edge 63 of the printed circuit 48. It is therefore possible to perform a wave soldering operation without risking wetting the lateral branch 23 of the trigger guard 30. It will be recalled that, during such an operation, the solder wave must be able to lick the lateral edges of the printed circuit 48
  • FIGS. 2 and 3 Another advantage of the embodiments of FIGS. 2 and 3 is that the rear insulation, respectively 40 and 50, serves as a support piece for the pins 21 and 61 respectively, when they are inserted into the holes in the printed circuit, respectively 28 and 48.
  • the male pins 49 and 59 can be replaced by female pins.
  • the insulating body 40 or 50 has a cylindrical pin designated by the general reference 130 and having a cylindrical region 131, at least one housing 133 and one end 132 of frustoconical shape.
  • the cylindrical pin 130 is integral with the insulating body 40 or 50 and is manufactured in a similar manner to a hot deformable pin.
  • a piece 120 of metal has a hollow cylindrical body 124 having a notch 126 and at least one elastic arm 122 intended to snap into the housing 133.
  • the piece 120 has a base end 125 coming into abutment lower than the base of the pin 130, and an upper end 129 which is extended by elastic arms 123, here three in number distributed at 120 °, but could for example be four in number distributed at 90 °.
  • the elastic arm 123 has a proximal region 127 extending outward, and a distal region 123 'forming an elbow with the region 127, the distal region 123' being directed inward.
  • the proximal region 127 acts as a snap stopper to hold in place the printed circuit 28 or 48 in abutment against an upper face of the insulating body 40 or 50.
  • the cylindrical body 120 is first introduced until the tongues 122 snap into the housings 133. Then the opening (or openings) 121 of the printed circuit 40 or 50 is presented at the distal end 123 'of the elastic arm 123.
  • the elastic arms 123 are pushed inwards, which allows the introduction of the printed circuit 40 or 50 until it abuts against the face of the insulating body 40 or 50 in a position in which a phenomenon of latching of the proximal end 127 occurs by elastic deployment of the arms 123 towards the outside.
  • the diameter of the pin 130 can be of the order of 1mm.
  • the part 120 can be removed by rotating it around the axis of the hollow cylinder 124 so as to release the elastic arm (s) 122 from the housing (s) 133.

Abstract

The invention relates to a connection element comprising an insulating housing (bridging piece) (30) having a U-shaped cross-section, the said housing having a central region (22) and two side branches (23, 24), as well as right-angled electrical contact elements having front contact regions (49) housed in openings in the central region of the housing (22), as well as regions (26) forming right-angled parts and rear contact regions (21), and a retention pin (31) in order to fix the connection element onto a flat support (28). It comprises a rear insulating body (40) surrounding the electrical contact elements on at least one zone located between the said front contact region (49, 38) and the said zone (26) forming a right-angled part, and in that the said retention pin (31) is firmly attached to an edge (45) of the said rear insulating body (40). <IMAGE>

Description

La présente invention a pour objet un élément de connexion comportant un pontet isolant présentant une section en forme de U, ledit pontet présentant une région centrale et deux branches latérales, ainsi que des éléments de contact électrique coudés présentant des régions de contact avant logées dans des ouvertures de la région centrale du pontet, ainsi que des régions formant coudes et des régions de contact arrière, et un pion de rétention, notamment de type déformable à chaud pour fixer l'élément de connexion sur un support plat.The subject of the present invention is a connection element comprising an insulating bridge having a U-shaped section, said bridge having a central region and two lateral branches, as well as bent electrical contact elements having front contact regions housed in openings in the central region of the trigger guard, as well as elbow regions and rear contact regions, and a retention pin, in particular of the hot-deformable type for fixing the connection element on a flat support.

Un élément de contact du type précité est commercialisé sous la marque "METRAL" par DU PONT. Il comporte un pontet présentant une région centrale relativement massive qui porte un pion déformable à chaud. La rigidité mécanique est assurée par le fait qu'un bord de la région centrale du pontet ainsi qu'au voisinage de celle-ci,le bord inférieur d'une des branches portent contre un bord du circuit imprimé. Ceci permet un espacement nominal de 14mm. entre le bord inférieur de la branche et la derniére des quatre rangées de contact.A contact element of the aforementioned type is marketed under the brand "METRAL" by DU PONT. It comprises a trigger guard having a relatively massive central region which carries a hot-deformable pin. Mechanical rigidity is ensured by the fact that an edge of the central region of the trigger guard as well as in the vicinity thereof, the lower edge of one of the branches bear against an edge of the printed circuit. This allows a nominal spacing of 14mm. between the lower edge of the branch and the last of the four contact rows.

Un tel montage présente l'inconvénient que, lors d'une opération de soudure à la vague, ladite branche du pontet n'est pas bien protégée en raison du fait qu'elle vient en contact avec le bord du circuit imprimé.Such an assembly has the disadvantage that, during a wave soldering operation, said branch of the trigger guard is not well protected due to the fact that it comes into contact with the edge of the printed circuit.

La présente invention a pour objet un élément de connexion ne présentant pas l'inconvénient précité.The present invention relates to a connection element which does not have the aforementioned drawback.

L'invention concerne ainsi un élément de connexion du type précité caractérisé en ce qu'il comporte un corps isolant arrière entourant les éléments de contact électrique sur au moins une zone située entre ladite région de contact avant et ladite zone formant coude, et en ce que ledit pion de rétention est solidaire d'un bord dudit corps isolant arrière.The invention thus relates to a connection element of the aforementioned type characterized in that it comprises a rear insulating body surrounding the electrical contact elements on at least one zone situated between said front contact region and said elbow zone, and in that that said retention pin is integral with an edge of said rear insulating body.

Ce corps isolant arrière permet de rigidifier les éléments de contact électrique, et comme le pion de rétention qui peut être, par exemple, un pion déformable à chaud ou un pion insérable à force, n'est plus porté par le pontet, mais par le corps isolant arrière, le pontet peut être disposé différemment par rapport au circuit imprimé. Il est en outre possible d'utiliser des pontets standards.This rear insulating body makes it possible to stiffen the electrical contact elements, and like the retention pin which can be, for example, a hot deformable pin or a force insertable pin, is no longer carried by the trigger guard, but by the rear insulating body, the trigger guard can be arranged differently from the printed circuit. It is also possible to use standard bridges.

Selon une première variante préférée, ledit bord du corps isolant arrière est sensiblement aligné avec un bord externe d'une branche du pontet. Un ensemble de connexion peut alors être mis en oeuvre en montant le pontet de telle sorte que ledit bord externe de la branche porte sur une face supérieure d'un support plat tel qu'une plaque de circuit imprimé. De la sorte, le montage de l'ensemble est rigide, le pontet est situé sur la face opposée à celle qui est soumise à la soudure à la vague et en outre il est possible de diminuer l'espacement nominal précité, p. ex. jusqu'à 10mm. environ.According to a first preferred variant, said edge of the rear insulating body is substantially aligned with an outer edge of a branch of the trigger guard. A connection assembly can then be implemented by mounting the bridge so that said outer edge of the branch bears on an upper face of a flat support such as a printed circuit board. In this way, the assembly of the assembly is rigid, the trigger guard is located on the face opposite to that which is subjected to wave soldering and in addition it is possible to reduce the aforementioned nominal spacing, p. ex. up to 10mm. about.

Selon une deuxième variante, le bord du corps isolant arrière est en retrait par rapport à un bord externe d'une branche du pontet. Un ensemble de connexion peut alors être mis en oeuvre de telle sorte que le pontet est espacé d'un bord externe du support plat. Il est ainsi possible d'éviter un mouillage du pontet par une vague de soudure, puisque le pontet est entièrement situé en dehors du périmètre du circuit imprimé. Ceci peut permettre de conserver un dit espacement nominal de 14 mm.According to a second variant, the edge of the rear insulating body is set back relative to an external edge of a branch of the trigger guard. A connection assembly can then be implemented so that the trigger guard is spaced from an outer edge of the flat support. It is thus possible to avoid wetting the trigger guard by a solder wave, since the trigger guard is entirely located outside the perimeter of the printed circuit. This can make it possible to maintain a said nominal spacing of 14 mm.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée à titre d'exemple non limitatif, en liaison avec les dessins qui représentent:

  • la figure 1, un connecteur de l'art antérieur, de marque METRAL,
  • la figure 2, un mode de réalisation préféré de l'invention,
  • la figure 3, un autre mode de réalisation de l'invention, et
  • la figure 4, une variante du pion de rétention, insérable à force.
The invention will be better understood on reading the description which follows, given by way of nonlimiting example, in conjunction with the drawings which represent:
  • FIG. 1, a connector of the prior art, of the METRAL brand,
  • FIG. 2, a preferred embodiment of the invention,
  • FIG. 3, another embodiment of the invention, and
  • Figure 4, a variant of the retention pin, insertable by force.

Selon la figure 1, un connecteur commercialisé sous la marque METRAL comporte une partie arrière présentant des éléments de connexion coudés. Ces éléments de connexion présentent chacun une terminaison 1 soudée à la face inférieure 18 d'une plaquette de circuit imprimé 8, une région rectiligne reliant la terminaison 1 à une région de coude 6 et une autre région rectiligne 5 s'étendant depuis le coude 6 jusqu'à traverser une région centrale 2 d'un pontet 10 en forme de "U", la région rectiligne 9 se prolongeant vers l'avant par des terminaisons mâles 9 disposées entre les deux branches latérales 3 et 4 du pontet 10 . Une face latérale de la région centrale jouxtant la branche 3 vient en appui contre une face supérieure 17 du circuit imprimé 8, et cette face porte un pion déformable à chaud 11 par lequel elle est solidarisée mécaniquement au circuit imprimé 8 par la face inférieure 18 de celui-ci au voisinage de son bord 19. En outre, la face arrière 15 de la branche latérale 3 vient également en appui contre le bord 19 du circuit imprimé 8, et absorbe les efforts de rotation appliqués au pontet 10.According to Figure 1, a connector sold under the brand METRAL has a rear part having elbow connection elements. These connection elements each have a termination 1 welded to the underside 18 of a printed circuit board 8, a straight region connecting the termination 1 to an elbow region 6 and another straight region 5 extending from the elbow 6 up to crossing a central region 2 of a trigger guard 10 in the shape of a "U", the rectilinear region 9 extending forwards by male terminations 9 disposed between the two lateral branches 3 and 4 of trigger guard 10. A lateral face of the central region adjoining the branch 3 comes to bear against an upper face 17 of the printed circuit 8, and this face carries a hot-deformable pin 11 by which it is mechanically secured to the printed circuit 8 by the lower face 18 of the latter in the vicinity of its edge 19. In addition, the rear face 15 of the lateral branch 3 also bears against the edge 19 of the printed circuit 8, and absorbs the rotational forces applied to the trigger guard 10.

Un connecteur 20 présente une partie avant femelle 12, un support de câble 14 et un câble 16.A connector 20 has a female front part 12, a cable support 14 and a cable 16.

Entre la face 15 de la branche 3 et le bord arrière de la rangée d'éléments de connexion située le plus en arrière, la cote L1 est égale à 14 mm. Cette cote résulte de plusieurs facteurs: la région centrale 2 doit être suffisamment épaisse pour assurer la rigidité mécanique de l'ensemble, et le pion 11 doit être suffisamment éloigné du bord 15 de la branche 3 pour permettre le passage d'un outil déformant à chaud le pion 11. On remarquera en ce qui concerne ce dernier point que la face plane externe de la branche 3 déborde de la face inférieure 18 du circuit imprimé 8.Between the face 15 of the branch 3 and the rear edge of the rearmost row of connecting elements, the dimension L1 is equal to 14 mm. This rating results from several factors: the central region 2 must be thick enough to ensure the mechanical rigidity of the assembly, and the pin 11 must be sufficiently distant from the edge 15 of the branch 3 to allow the passage of a deforming tool to hot pawn 11. It will be noted with regard to this last point that the external planar face of the branch 3 projects beyond the lower face 18 of the printed circuit 8.

Selon la figure 2, un connecteur selon l'invention présente en partie arrière un corps isolant 40 pourvu d'ouvertures longitudinales 47 se prolongeant vers l'arrière par une zone de rétreint 42 et débouchant sur une face 43, qui est ici inclinée à sensiblement 45°. Les éléments de contact présentent une terminaison avant, 49 constituée par un picot mâle, logée entre les branches latérales 23 et 24 d'un pontet 30 en forme de "U" dont la partie centrale 22 présente des ouvertures traversées en 38 avec assemblage à force par les terminaisons 49 qui se prolongent vers l'arrière par une zone rectiligne 25 disposée dans une ouverture 47, et en arrière de la zone de rétreint 42 qui la maintient, par une région de coude 26, puis une autre zone rectiligne 27 qui se termine par une région de contact (ou picot) 21 insérée à force ("press-fit") dans des ouvertures d'un circuit imprimé 28. Le bloc isolant 41 présente un prolongement 44 ayant une face 45 qui vient en appui sur la face supérieure 29 du circuit imprimé 28 et qui porte un pion déformable à chaud 31 qui permet de fixer mécaniquement le bloc 41 au circuit imprimé 28. La branche latérale 23 peut présenter une face 46, par exemple située, comme représenté, à son extrémité, et qui vient en appui sur la face supérieure 29 du circuit imprimé 28. Le bloc isolant 40 contribue à la rigidité mécanique de la partie du connecteur située à l'arrière du pontet 30. De ce fait, le pontet 30 utilisé peut être un pontet standard. En outre, comme le pontet 30 est monté sur la face supérieure 29 du circuit imprimé 28, il est entièrement protégé lors de l'opération de soudure à la vague. Enfin, il n'est plus besoin de prévoir un dégagement d'outil aussi important que dans l'art antérieur. La cote L2 entre la base du pontet 30 et la face arrière 39 du corps isolant 40 peut être de l'ordre de 10 mm. au lieu de 14 mm.According to FIG. 2, a connector according to the invention has, at the rear part, an insulating body 40 provided with longitudinal openings 47 extending towards the rear by a constricted zone 42 and opening onto a face 43, which is here inclined to substantially 45 °. The contact elements have a front termination, 49 constituted by a male pin, housed between the lateral branches 23 and 24 of a trigger guard 30 in the shape of a "U" whose central part 22 has openings crossed at 38 with force assembly by the terminations 49 which extend rearwards through a rectilinear zone 25 disposed in an opening 47, and behind the constricted zone 42 which holds it, by an elbow region 26, then another rectilinear zone 27 which is ends with a contact region (or pin) 21 inserted by force ("press-fit") in openings of a printed circuit 28. The insulating block 41 has an extension 44 having a face 45 which comes to bear on the face upper 29 of the printed circuit 28 and which carries a hot deformable pin 31 which makes it possible to mechanically fix the block 41 to the printed circuit 28. The lateral branch 23 may have a face 46, for example situated, as shown, at its extr miter, and which comes to bear on the upper face 29 of the printed circuit 28. The insulating block 40 contributes to the mechanical rigidity of the part of the connector located at the rear of the trigger guard 30. Therefore, the trigger guard 30 used can be a standard trigger guard. In addition, as the trigger guard 30 is mounted on the upper face 29 of the printed circuit 28, it is fully protected during the wave soldering operation. Finally, there is no longer any need to provide as much tool clearance as in the prior art. The dimension L2 between the base of the trigger guard 30 and the rear face 39 of the insulating body 40 can be of the order of 10 mm. instead of 14 mm.

On notera que le pion 31, du fait de sa disposition sur le corps isolant 40 qui maintient les éléments (25,26,27,21), participe au guidage des picots 21 lors de l'insertion à force de ceux-ci dans les trous du circuit imprimé 28.It will be noted that the pin 31, owing to its arrangement on the insulating body 40 which holds the elements (25, 26, 27, 21), participates in guiding the pins 21 during the force insertion of these into the PCB holes 28.

En outre, la liaison entre le pontet 30 et l'isolant arrière 40 est renforcée par le fait que les terminaisons 38 insérables à force des picots 49 participent à l'effort d'encastrement entre les prolongements 37 de l'isolant 40 et 36 du pontet 30.In addition, the connection between the trigger guard 30 and the rear insulation 40 is reinforced by the fact that the terminations 38 insertable by force of the pins 49 participate in the embedding effort between the extensions 37 of the insulation 40 and 36 of the trigger guard 30.

Le mode de réalisation de la figure 3 met en oeuvre un pontet 30 qui peut être identique à celui de la figure 2. Le connecteur présente un corps isolant arrière 50 dépourvu de prolongement tel que 44. L'isolant arrière 50 porte sur sa face 54 un pion 55 déformable à chaud qui permet de le solidariser à un circuit imprimé 48. Les éléments de contact présentent des picots mâles 59 logés entre les branches latérales 23 et 24, qui sont insérées à force en 68 et qui se prolongent vers l'arrière par des zones rectilignes 65 plus longues que les zones 25 de la figure 2, puis des coudes 66 et enfin d'autres zones rectilignes 67 plus courtes que les zones 27 de la figure 2. Le pontet 30 et l'isolant arrière 50 peuvent être encastrés en 36 pour le pontet 30 et en 62 pour l'isolant arrière 50.The embodiment of Figure 3 implements a bridge 30 which may be identical to that of Figure 2. The connector has a rear insulating body 50 without extension such as 44. The rear insulator 50 carries on its face 54 a hot-deformable pin 55 which allows it to be secured to a printed circuit 48. The contact elements have male pins 59 housed between the lateral branches 23 and 24, which are force-fitted at 68 and which extend towards the rear by rectilinear zones 65 longer than the zones 25 of FIG. 2, then of the elbows 66 and finally other rectilinear zones 67 shorter than the zones 27 of FIG. 2. The trigger guard 30 and the rear insulation 50 can be recessed at 36 for the trigger guard 30 and at 62 for the rear insulation 50.

Avec une cote L3 supérieure à L2, par exemple L3 = 14 mm., le pontet 30 est espacé du bord 63 du circuit imprimé 48. Il est donc possible d'effectuer une opération de soudure à la vague sans risquer de mouiller la branche latérale 23 du pontet 30. On rappelera que, lors d'une telle opération, la vague de soudure doit pouvoir lécher les bords latéraux du circuit imprimé 48With a dimension L3 greater than L2, for example L3 = 14 mm., The trigger guard 30 is spaced from the edge 63 of the printed circuit 48. It is therefore possible to perform a wave soldering operation without risking wetting the lateral branch 23 of the trigger guard 30. It will be recalled that, during such an operation, the solder wave must be able to lick the lateral edges of the printed circuit 48

Un autre avantage des modes de réalisation des figures 2 et 3 est que l'isolant arrière, respectivement 40 et 50, sert de pièce d'appui aux picots respectivement 21 et 61, lors de leur insertion dans les trous du circuit imprimé, respectivement 28 et 48.Another advantage of the embodiments of FIGS. 2 and 3 is that the rear insulation, respectively 40 and 50, serves as a support piece for the pins 21 and 61 respectively, when they are inserted into the holes in the printed circuit, respectively 28 and 48.

En variante, les picots mâles 49 et 59 peuvent être remplacés par des picots femelles.As a variant, the male pins 49 and 59 can be replaced by female pins.

Sur la figure 4, le corps isolant 40 ou 50 présente un pion cylindrique désigné par le repère général 130 et présentant une région cylindrique 131, au moins un logement 133 et une extrémité 132 de forme tronconique. Le pion cylindrique 130 est solidaire du corps isolant 40 ou 50 et est fabriqué de manière analogue à un pion déformable à chaud. Une pièce 120 en métal présente un corps cylindrique creux 124 présentant une échancrure 126 et au moins un bras élastique 122 destiné à s'encliqueter dans le logement 133. La pièce 120 présente une extrémité de base 125 venant en butée inférieure à la base du pion 130, et une extrémité supérieure 129 qui se prolonge par des bras élastiques 123, ici au nombre de trois répartis à 120°, mais pourraient être par exemple au nombre de quatre répartis à 90°. Le bras élastique 123 présente une région proximale 127 s'étendant vers l'extérieur, et une région distale 123' formant un coude avec la région 127, la région distale 123' étant dirigée vers l'intérieur. La région proximale 127 fait office de butée d'encliquetage pour maintenir en place le circuit imprimé 28 ou 48 en butée contre une face supérieure du corps isolant 40 ou 50. Pour solidariser un circuit imprimé 9 à un corps isolant 1 présentant un ou plusieurs pions cylindriques 130, on introduit tout d'abord le corps cylindrique 120 jusqu'à encliquetage des languettes 122 dans les logements 133. Ensuite, l'ouverture (ou les ouvertures) 121 du circuit imprimé 40 ou 50 est présentée à l'extrémité distale 123' du bras élastique 123. Les bras élastiques 123 sont repoussés vers l'intérieur, ce qui permet l'introduction du circuit imprimé 40 ou 50 jusqu'à ce qu'il vienne en butée contre la face du corps isolant 40 ou 50 dans une position dans laquelle se produit un phénomène d'encliquetage de l'extrémité proximale 127 par déploiement élastique des bras 123 vers l'extérieur. Le diamètre du pion 130 peut être de l'ordre de 1mm.In Figure 4, the insulating body 40 or 50 has a cylindrical pin designated by the general reference 130 and having a cylindrical region 131, at least one housing 133 and one end 132 of frustoconical shape. The cylindrical pin 130 is integral with the insulating body 40 or 50 and is manufactured in a similar manner to a hot deformable pin. A piece 120 of metal has a hollow cylindrical body 124 having a notch 126 and at least one elastic arm 122 intended to snap into the housing 133. The piece 120 has a base end 125 coming into abutment lower than the base of the pin 130, and an upper end 129 which is extended by elastic arms 123, here three in number distributed at 120 °, but could for example be four in number distributed at 90 °. The elastic arm 123 has a proximal region 127 extending outward, and a distal region 123 'forming an elbow with the region 127, the distal region 123' being directed inward. The proximal region 127 acts as a snap stopper to hold in place the printed circuit 28 or 48 in abutment against an upper face of the insulating body 40 or 50. To secure a printed circuit 9 to an insulating body 1 having one or more pins cylindrical 130, the cylindrical body 120 is first introduced until the tongues 122 snap into the housings 133. Then the opening (or openings) 121 of the printed circuit 40 or 50 is presented at the distal end 123 'of the elastic arm 123. The elastic arms 123 are pushed inwards, which allows the introduction of the printed circuit 40 or 50 until it abuts against the face of the insulating body 40 or 50 in a position in which a phenomenon of latching of the proximal end 127 occurs by elastic deployment of the arms 123 towards the outside. The diameter of the pin 130 can be of the order of 1mm.

La pièce 120 peut être démontée en la faisant pivoter autour de l'axe du cylindre creux 124 de manière à dégager le (ou les) bras élastique(s) 122 du (ou des) logement(s) 133.The part 120 can be removed by rotating it around the axis of the hollow cylinder 124 so as to release the elastic arm (s) 122 from the housing (s) 133.

Claims (10)

Elément de connexion comportant un pontet isolant présentant une section en forme de U, ledit pontet présentant une région centrale et deux branches latérales, ainsi que des éléments de contact électrique coudés présentant des régions de contact avant logées dans des ouvertures de la région centrale du pontet, ainsi que des régions formant coudes et des régions de contact arrière, et un pion de rétention pour fixer l'élément de connexion sur un support plat, caractérisé en ce qu'il comporte un corps isolant arrière (40, 50) entourant les éléments de contact électrique sur au moins une zone située entre ladite région de contact avant (49, 38, 59, 68) et ladite zone formant coude (26, 66), et en ce que ledit pion de rétention (31, 55) est solidaire d'un bord (45, 54) dudit corps isolant arrière (40, 50).Connection element comprising an insulating bridge having a U-shaped section, said bridge having a central region and two lateral branches, as well as elbow electrical contact elements having front contact regions housed in openings in the central region of the bridge , as well as elbow regions and rear contact regions, and a retention pin for fixing the connection element to a flat support, characterized in that it comprises a rear insulating body (40, 50) surrounding the elements of electrical contact on at least one zone situated between said front contact region (49, 38, 59, 68) and said elbow zone (26, 66), and in that said retention pin (31, 55) is integral an edge (45, 54) of said rear insulating body (40, 50). Elément de connexion selon la revendication 1, caractérisé en ce que le pion de rétention est du type déformable à chaud.Connection element according to claim 1, characterized in that the retention pin is of the hot-deformable type. Elément de connexion selon la revendication 1, caractérisé en ce que le pion de rétention est du type insérable à force.Connection element according to claim 1, characterized in that the retention pin is of the force insertable type. Elément de connexion selon une des revendications 1 à 3, caractérisé en ce que ledit bord (45) du corps isolant arrière (40) est sensiblement aligné avec un bord externe (46) d'une branche (23) du pontet (30).Connection element according to one of claims 1 to 3, characterized in that said edge (45) of the rear insulating body (40) is substantially aligned with an outer edge (46) of a branch (23) of the trigger guard (30). Elément de connexion selon la revendication 4, caractérisé en ce que le corps isolant arrière (40) comporte un prolongement (44) comprenant ledit bord (45).Connection element according to claim 4, characterized in that the rear insulating body (40) has an extension (44) comprising said edge (45). Elément de connexion selon une des revendications 1 à 3, caractérisé en ce que le bord (54) du corps isolant arrière (50) est en retrait par rapport à un bord externe (46) d'une branche (23) du pontet (30).Connection element according to one of claims 1 to 3, characterized in that the edge (54) of the rear insulating body (50) is set back with respect to an external edge (46) of a branch (23) of the trigger guard (30 ). Elément de connexion selon une des revendications précédentes, caractérisé en ce que le pontet (30) et le corps isolant arrière (40, 50) sont assemblés par encastrement (36, 37, 62).Connection element according to one of the preceding claims, characterized in that the trigger guard (30) and the rear insulating body (40, 50) are assembled by embedding (36, 37, 62). Ensemble de connexion comportant un support plat et un élément de connexion, caractérisé en ce que ledit élément de connexion est selon une des revendications 1 à 7.Connection assembly comprising a flat support and a connection element, characterized in that said connection element is according to one of claims 1 to 7. Ensemble de connexion comportant un support plat et un élément de connexion, caractérisé en ce que ledit élément de connexion est selon la revendication 4, et en ce que ledit bord externe (46) de ladite branche (23) du pontet (30) est en appui sur le support plat (28).Connection assembly comprising a flat support and a connection element, characterized in that said connection element is according to claim 4, and in that said external edge (46) of said branch (23) of the trigger guard (30) is in support on the flat support (28). Ensemble de connexion comportant un support plat et un élément de connexion, caractérisé en ce que ledit élément de connexion est selon la revendication 6, et en ce que le pontet (30) est espacé d'un bord (63) du support plat (48).Connection assembly comprising a flat support and a connection element, characterized in that said connection element is according to claim 6, and in that the trigger guard (30) is spaced from an edge (63) of the flat support (48 ).
EP94402212A 1993-10-19 1994-10-04 Connection element comprising an insulating housing Expired - Lifetime EP0649195B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9312445A FR2711452B1 (en) 1993-10-19 1993-10-19 Connection element comprising an insulating bridge.
FR9312445 1993-10-19

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EP0649195A1 true EP0649195A1 (en) 1995-04-19
EP0649195B1 EP0649195B1 (en) 1997-07-16

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US (1) US5593307A (en)
EP (1) EP0649195B1 (en)
JP (1) JP3406086B2 (en)
DE (1) DE69404259T2 (en)
ES (1) ES2105563T3 (en)
FR (1) FR2711452B1 (en)
TW (1) TW279281B (en)

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EP0860911A2 (en) * 1997-02-21 1998-08-26 Berg Electronics Manufacturing B.V. Press fit circuit board connector
US5879194A (en) * 1996-04-12 1999-03-09 Framatome Connectors International Shielded connector of the type comprising a plug and a socket and provided with a locking/unlocking component
US5879193A (en) * 1996-04-12 1999-03-09 Framatome Connectors International Shielded connector, notably of the type comprising a plug and a socket designed to be attached to a flat support
US5934939A (en) * 1996-04-12 1999-08-10 Framatome Connectors International Shielded connector, notably of the type comprising a plug and a socket designed to be attached to a flat support
US5997361A (en) * 1997-06-30 1999-12-07 Litton Systems, Inc. Electronic cable connector
FR2818025A1 (en) * 2000-12-13 2002-06-14 Fci France CONNECTOR
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US5879194A (en) * 1996-04-12 1999-03-09 Framatome Connectors International Shielded connector of the type comprising a plug and a socket and provided with a locking/unlocking component
US5879193A (en) * 1996-04-12 1999-03-09 Framatome Connectors International Shielded connector, notably of the type comprising a plug and a socket designed to be attached to a flat support
US5934939A (en) * 1996-04-12 1999-08-10 Framatome Connectors International Shielded connector, notably of the type comprising a plug and a socket designed to be attached to a flat support
DE29606760U1 (en) * 1996-04-13 1996-07-11 Kloeckner Moeller Gmbh Connector plug for fitting a circuit board that can be inserted into a housing
EP0860911A2 (en) * 1997-02-21 1998-08-26 Berg Electronics Manufacturing B.V. Press fit circuit board connector
EP0860911A3 (en) * 1997-02-21 1999-09-08 Berg Electronics Manufacturing B.V. Press fit circuit board connector
US6095826A (en) * 1997-02-21 2000-08-01 Berg Technology, Inc. Press fit circuit board connector
US5997361A (en) * 1997-06-30 1999-12-07 Litton Systems, Inc. Electronic cable connector
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US11201421B2 (en) 2017-10-10 2021-12-14 Vitesco Technologies GmbH Printed circuit board mounting arrangement

Also Published As

Publication number Publication date
FR2711452A1 (en) 1995-04-28
DE69404259T2 (en) 1998-01-15
TW279281B (en) 1996-06-21
ES2105563T3 (en) 1997-10-16
US5593307A (en) 1997-01-14
FR2711452B1 (en) 1995-12-08
EP0649195B1 (en) 1997-07-16
JPH07249444A (en) 1995-09-26
DE69404259D1 (en) 1997-08-21
JP3406086B2 (en) 2003-05-12

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