EP1089384B1 - Connecteur à fiche - Google Patents

Connecteur à fiche Download PDF

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Publication number
EP1089384B1
EP1089384B1 EP20000119098 EP00119098A EP1089384B1 EP 1089384 B1 EP1089384 B1 EP 1089384B1 EP 20000119098 EP20000119098 EP 20000119098 EP 00119098 A EP00119098 A EP 00119098A EP 1089384 B1 EP1089384 B1 EP 1089384B1
Authority
EP
European Patent Office
Prior art keywords
plug connector
insulating body
connector according
locking part
circuit board
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
EP20000119098
Other languages
German (de)
English (en)
Other versions
EP1089384A1 (fr
Inventor
Dietmar Harting
Jean Francois Bernat
Jean Merri De Vanssay
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.)
Harting Electronics GmbH and Co KG
Original Assignee
Harting Electronics GmbH and Co KG
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 Harting Electronics GmbH and Co KG filed Critical Harting Electronics GmbH and Co KG
Publication of EP1089384A1 publication Critical patent/EP1089384A1/fr
Application granted granted Critical
Publication of EP1089384B1 publication Critical patent/EP1089384B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00Structural 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
    • H01R12/70Coupling devices
    • H01R12/7005Guiding, mounting, polarizing or locking means; Extractors
    • H01R12/7011Locking or fixing a connector to a PCB
    • H01R12/7047Locking or fixing a connector to a PCB with a fastener through a screw hole in the coupling device
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/621Bolt, set screw or screw clamp
    • H01R13/6215Bolt, set screw or screw clamp using one or more bolts

Definitions

  • the invention relates to a connector with contacts that can be attached to a printed circuit board, etc., a housing, an insulating body, which is arranged in the housing and carries the contacts, and at least one locking part, by means of which a complementary connector, with a cable may be provided, can be locked to the connector.
  • a connector is eg in US 4,889,502 A disclosed.
  • the contacts of the fixed connector are usually connected to the circuit board, for example by pressing and soldering or by soldering.
  • the fixed connector of the complementary connector With the fixed connector of the complementary connector can be connected, which is referred to as a loose connector and in particular serves to connect a cable to the fixed connector.
  • the fixed connector is provided with the locking member, which may be formed in particular as a mother or as a latching hook.
  • the loose connector is then provided with a screw or complementary locking hooks so that it can be locked to the fixed connector, whereby the two connectors can not be unintentionally detached from each other, for example, when pulled on the cable.
  • the then occurring tensile forces are transmitted via the screw and the nut or the latching hooks on the fixed connector and from there to the circuit board or the housing wall.
  • the object of the invention is therefore to provide a connector in which any tensile forces that are exerted on him, are not derived through the contacts.
  • a connector of the type mentioned above which is characterized in that the locking part is provided with at least one hook, which can anchor the locking part to the circuit board, etc., and relative to the housing and the insulating body between two stops is displaceable , With the locking member thus directly attacks the component to, for example, the circuit board, in which the tensile forces are introduced from the loose connector, so that the contacts for power transmission are not required.
  • the locking member since the locking member is slidable relative to the housing and the insulating part of the fixed connector, it is reliably prevented that tensile forces occurring must first be absorbed by the housing and the insulating part, before they can be transferred to the locking part.
  • the locking part has a sleeve which is provided with an internal thread, and a spreader pin which is received in the sleeve, and two hooks which are spread by the spreader pin from a press-in position into an anchoring position can.
  • the fixed connector serves to receive a loose connector with screws, which can then be screwed into the sleeve to secure the two connectors together. Occurring tensile forces are then directly from the loose connector over the screw derived in the locking part and from this in the circuit board, without the contacts of the fixed connector are charged.
  • a loose connector which is provided with locking hooks or locking levers
  • a correspondingly adapted configuration can be used so that the loose connector can be attached to the fixed connector and derived tensile forces derived directly through the locking member in the circuit board become.
  • the expansion pin has a pressing portion which is received with a press fit in the locking part.
  • This embodiment is particularly advantageous in terms of assembly. The expansion pin must only be pressed into the locking part, in which he then holds by friction; so he is automatically taken captive in the locking part.
  • the pressing portion is a cone, the tip of which faces the hook.
  • This configuration provides for a relatively low friction when the expansion pin is pressed into the sleeve, since the conical surface facilitates the pressing, but increases the friction in a possible movement in the opposite direction, since then the larger base of the cone with a comparatively sharp edge lies at the transition to the conical surface in the direction of movement forward.
  • each hook is provided with a predetermined breaking point.
  • This breaking point can be dimensioned so that the maximum of the hook portable tensile force is less than the force exerted by the circuit board on the hook holding force.
  • the locking part is preferably provided with a bead which forms a first stop, and with a shoulder which forms a second stop.
  • the locking member may be inserted into the connector until its shoulder abuts a complementary shoulder. Subsequently, the bead is then formed, for example by upsetting the sleeve of the locking part. Thereafter, the locking member is captively attached to the connector.
  • the locking part has a holding section with a square cross section.
  • This holding portion ensures that a torque applied to the locking member, as may occur, for example, when screwing a nut of the loose connector in the sleeve of the locking member is received by the connector itself and does not have to be initiated by means of the hook in the circuit board. This could lead to slippage of the hook in the corresponding opening of the circuit board, so that this opening could be damaged and the required holding force in the circuit board would no longer be guaranteed.
  • the housing has a protective collar made of metal, which is provided with tabs which engage around a part of the insulating body in order to secure the protective collar to the insulating body.
  • the protective collar can be fastened in a particularly simple manner on the insulating body. Since the protective collar has a comparatively large wall thickness, four tabs are usually sufficient, which can be crimped during assembly.
  • the housing has a cowling, which is provided with two opposite clamping edges, one of which a collar of the protective collar and the other rests against the insulating body.
  • the trim panel can be slipped over the protective collar and then attached to the insulating body, for example by bending over clamping projections. These clamping projections can serve for contacting a ground conductor of a printed circuit board. In this way, a shielded connector is achieved with little effort.
  • the bead of the locking member bears against the collar of the protective collar, and the shoulder of the locking member bears against a shoulder in the insulating body.
  • a comparatively solid element is available, namely the protective collar made of metal.
  • a pin header with 25 pins is described here, which is provided with press-in contacts. Furthermore, a shield is provided.
  • the core of the invention namely the manner of fastening the connector to, for example, the printed circuit board, can also be used with deviating connectors which, for example, have contacts instead of the press-in pins, which can be soldered (SMT), or which have no shielding.
  • the connector has an insulating body 10 in which a total of 25 contacts 12 are mounted. Each contact has a contact pin 14 and a press-in pin 16. The press-fit pin is intended to be pressed into a corresponding opening of a printed circuit board.
  • each retaining recesses 18 are formed, whose function will be explained later.
  • the retaining recesses 18 are located outside the region in which the contacts 12 are arranged at the ends of the elongated insulating body and accessible from the side on which the press-fit pins 16 of the contacts 12 extend.
  • Each retaining recess 18 terminates in a shoulder 20, which represents the transition to a receiving opening 22.
  • Each receiving opening 22 has a circular cross-section and extends to the side of the insulating body 10, on which the contact pins 14 are arranged.
  • a protective collar 24 which consists of metal.
  • the protective collar 24 surrounds the contact pins 14 and bears against the insulating body 10 by means of a collar 26, which also covers the region of the insulating body 10 surrounding the receiving openings 22. In the area of the receiving openings of the collar 26 is provided with corresponding openings 28.
  • four tabs 30 (see in particular Figure 8), which are integrally formed with the collar 26 and engage around the edge of the insulating body 10. The tabs 30 can be simply crimped after placing the protective collar 24 on the insulating body to securely attach the protective collar on the insulator.
  • the insulating body 10 is further provided with a covering part 32 which covers the four outer surfaces of the insulating body, through which the contacts 12 not pass, as well as a part of the surface of the insulating body, through which the contact pins 14 pass.
  • the trim part 32 is integrally formed from a blank having a portion for covering the surface of the insulating body, which is provided with a cutout for the passage of the protective collar 24, and four side surfaces which are bent by 90 ° relative to the first surface. In this way, the trough-like shape of the trim part is created.
  • the covering part 32 is provided with clamping projections 34 at its edge, which terminates with the underside of the insulating body from which the press-fit pins 16 exit.
  • the clamping projections 34 are, after the trim member 32 is placed on the insulating body, that the edge surrounding the cutout for the protective collar 24 of the trim panel on the collar 26 of the protective collar, flanged, so that they rest against the underside of the insulating body 10.
  • the collar 26 of the protective collar 24 and the insulating body 10 are clamped between the two edges of the trim part.
  • the clamping projections 34 which protrude slightly above the bottom of the insulating body 10, can serve for contacting a ground conductor of a printed circuit board, so that the shield formed by the lining part 32 and the protective collar 24 is grounded.
  • Each locking member consists of a sleeve 38, which is provided with a female thread over part of its length and has a portion arranged in the receiving opening 22, a holding portion 40, which has a square cross-section and is arranged in the holding recess 18, and two hooks 42 extending from the holding portion 40 on the side facing away from the sleeve.
  • a spreader pin 44 is arranged, which has an enlarged print head 46 whose outer diameter is smaller than the inner diameter of the sleeve 38, and a pressing portion 48 which is formed as a cone and is received with a press fit in an opening which the holding section 40 of the locking member 36 passes.
  • the expander pin 44 is arranged with its end facing away from the print head 46 which has a tip between the two hooks 42. In the press-in position shown in Figure 5, the front end of the expansion pin 44 is received in a channel between the two hooks 42, so that they are approximated to each other. Starting from this position, the expansion pin can be moved into an anchoring position (see Figure 4), in which the front end of the expansion pin 44 passes between the two hooks 42, so that they are spread outwards.
  • Each hook is designed with a reduced cross-section at the transition to the body of the locking member.
  • This reduced cross-section forms a predetermined breaking point 43 and is dimensioned so that the hooks tear off even at tensile forces from the locking part, in which damage to the circuit board on which the hook attack, yet can not occur.
  • the anchoring part 36 is slidably disposed in the retaining recess 18 and the receiving opening 22 of the insulating body 10, wherein it is secured against falling out.
  • a shoulder is formed at the transition between the sleeve 38 and the holding portion 40, which may rest against the shoulder 20 in the insulating body between the holding recess 18 and the receiving opening 22.
  • a bead 50 is formed on the sleeve 38, which rests on the edge of the passage opening 28 in the collar 26 of the protective collar 24. In this way, two end positions of the locking part 36 are predetermined.
  • the assembly of the locking member 36 on the connector can be made in the following manner: First, the expansion pin 44 is pushed so far into the locking member 36 until the pressing portion 48 is fixed with a press fit inside the holding portion 40. In this state, the expansion pin 44 is held captive in the locking part. Subsequently, the locking member 36 is inserted with spreading pin Inserted 44 from the side of the press-fit pins 16 forth in the retaining recess 18 until the sleeve 38 on the side of the contact pins 14 from the insulating body 10 exits. Subsequently, there after the protective collar 24 is placed on the insulating body 10, the bead 50 is formed on the sleeve 38, for example by a local compression. Alternatively, a two-piece sleeve could be used, the second part is placed after the locking member is inserted into the insulating body. It could also be the previously formed bead pushed through the collar 26 of the protective collar 24.
  • the orientation of the two hooks 42 is irrelevant; As can be seen in Figures 1, 5 and 6, the two hooks can either be aligned along the longitudinal direction of the insulating body or transversely thereto.
  • the connector is ready for mounting to a printed circuit board.
  • FIGS 11 to 15 wherein in the figures a) a view of the captured in the insulator 10 anchoring part 36 and in the figures b) is a view of the recorded in the insulating body 10 contacts 12 are shown.
  • the connector is inserted with its press-fit pins 16 in corresponding openings on the circuit board 52 so that it is temporarily fixed. In this case, the hooks 42 of the locking part 16 engage in a suitable locking opening 54.
  • a press-fit tool 56 is lowered, which first presses on the sleeve 38 of the locking part 36 by means of a spring-loaded press-fit sleeve 58, so that the hooks 42 are almost completely pushed through the printed circuit board 52 (see FIG. 12). Now, the bead 50 rests against the collar 26 of the protective collar 24. Subsequently, the press-fit tool 56 is lowered further until it rests on the insulating body 10. In this case, the locking member 36 remains in its previous position, so that the press-fit 58 is displaced relative to the pressing tool 56, whereby the spring preload increases.
  • the press-fit pins 16 are pressed into the printed circuit board 52 via the insulating body 10. If the locking member 36 due to the friction in the locking hole 54 does not simultaneously follow this movement in the circuit board 52 and thus remains behind the movement, the bead 50 is lifted off the collar 26, which ultimately the spring bias of the press-in sleeve 58 is increased. Once the spring bias is able to overcome the friction between the hook and the circuit board, the hooks 42 are completely pushed through the circuit board 52. This condition is shown in FIG. It is important that the hooks 42 have passed completely through the locking opening 54 of the circuit board 52 before the press-fit pins 16 are fully pressed into the circuit board.
  • a last press-in step (see FIG. 15), the insulating body 10 is then pressed further onto the printed circuit board 52, so that the press-fit pins 16 are pressed completely into the printed circuit board 52.
  • This relative displacement is used to the expansion pin 44 by means of a mandrel 60 with a suitable length completely push into the locking member 36 so that the two hooks 42 are spread. In this state, the two hooks 42 are spread so far that they can not be withdrawn through the locking hole 54.
  • the expansion pin 44 is now held by friction both in the region of the pressing portion 48 and in the region of the two hooks 42 reliably in its expanded position, so that it can not come loose even with vibration, whereby the hook would be released.
  • FIG. 16 shows the press-fit connector to which a complementary loose connector 62 is attached.
  • a complementary loose connector 62 is attached.
  • This is completely inserted into the protective collar 24 and has a screw 64 which in the sleeve 38 of the locking member 36 is screwed.
  • the loose connector 62 is fixedly attached to the attached to the circuit board 52 connector.
  • the forces exerted by the screw 64 tensile forces have led to that the locking member 36 has been withdrawn until the hooks 42 abut with its shoulder on the underside of the circuit board 52. Nevertheless, the insulating body 10 has not moved relative to the circuit board 52; this is the result of the displaceability of the locking member 36 relative to the insulating body 10.
  • the applied tensile forces and other tensile forces come from a cable connected to the loose connector 62 cables are thus not introduced into the contacts 12 and then into the circuit board 52, but directly from the locking member 36, without the contacts 12 are charged significantly.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)

Claims (12)

  1. Connecteur à fiches, comportant des contacts (12) qui peuvent être montés sur une carte de circuits imprimés, etc., un boîtier (24 ; 32), un corps isolant (10) qui est agencé dans le boîtier et qui porte les contacts, et au moins une pièce de verrouillage (36) au moyen de laquelle un connecteur à fiches complémentaire, qui peut être pourvu d'un câble, peut être verrouillé sur le connecteur à fiches, caractérisé en ce que
    la pièce de verrouillage (36) est pourvue d'au moins un crochet (42), qui peut ancrer la pièce de verrouillage sur la carte de circuits imprimés, etc., et peut être déplacée entre deux butées par rapport au boîtier (24, 32) et au corps isolant (10).
  2. Connecteur à fiches selon la revendication 1, caractérisé en ce que la pièce de verrouillage présente une douille (38), qui est pourvue d'un taraudage, ainsi qu'une broche à expansion (44) qui est reçue dans la douille, et deux crochets (42) qui peuvent être écartés depuis une position de pressage jusque dans une position d'ancrage.
  3. Connecteur à fiches selon la revendication 2, caractérisé en ce que la broche à expansion présente un tronçon de pressage (48) qui est reçu avec ajustage serré dans la pièce de verrouillage.
  4. Connecteur à fiches selon la revendication 3, caractérisé en ce que le tronçon de pressage est un cône (48) dont la pointe est tournée vers les crochets.
  5. Connecteur à fiches selon l'une des revendications 2 à 4, caractérisé en ce que chaque crochet (42) est pourvu d'un point destiné à la rupture.
  6. Connecteur à fiches selon l'une des revendications précédentes, caractérisé en ce que la pièce de verrouillage est pourvue d'un bourrelet (50), qui forme une première butée, et d'un talon qui forme une deuxième butée.
  7. Connecteur à fiches selon l'une des revendications précédentes, caractérisé en ce que la pièce de verrouillage (36) présente un tronçon de retenue (40) avec section transversale carrée.
  8. Connecteur à fiches selon l'une des revendications précédentes, caractérisé en ce que le boîtier présente un col de protection (24) en métal qui est pourvu de pattes (30) qui entourent une partie du corps isolant (10) pour fixer le col de protection (24) sur le corps isolant.
  9. Connecteur à fiches selon la revendication 8, caractérisé en ce que le boîtier présente une partie de revêtement (32) qui est pourvue de deux bords de serrage opposés l'un à l'autre, dont l'un est en appui sur une collerette (26) du col de protection (24) et l'autre est en appui sur le corps isolant.
  10. Connecteur à fiches selon la revendication 6 et la revendication 9, caractérisé en ce que le bourrelet (50) de la pièce de verrouillage est en appui sur la collerette (26) du col de protection (24), et le talon de la pièce de verrouillage est en appui sur un talon (20) dans le corps isolant.
  11. Connecteur à fiches selon la revendication 9, caractérisé en ce que le bord de serrage en appui sur le corps isolant est formé par des pattes (30) recourbées.
  12. Connecteur à fiches selon la revendication 11, caractérisé en ce que des saillies de serrage (34) sont prévues pour établir un contact avec une piste de masse d'une carte de circuits imprimés.
EP20000119098 1999-09-23 2000-09-04 Connecteur à fiche Expired - Lifetime EP1089384B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19945705 1999-09-23
DE1999145705 DE19945705A1 (de) 1999-09-23 1999-09-23 Steckverbinder

Publications (2)

Publication Number Publication Date
EP1089384A1 EP1089384A1 (fr) 2001-04-04
EP1089384B1 true EP1089384B1 (fr) 2007-08-22

Family

ID=7923094

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000119098 Expired - Lifetime EP1089384B1 (fr) 1999-09-23 2000-09-04 Connecteur à fiche

Country Status (3)

Country Link
EP (1) EP1089384B1 (fr)
DE (2) DE19945705A1 (fr)
ES (1) ES2292392T3 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4889502A (en) * 1987-07-29 1989-12-26 Althouse Rickie M Connector having drop-in insert conductive with shell
DE4016890C2 (de) * 1990-05-25 2002-10-24 Elco Europ Gmbh Befestigungsvorrichtung für die Sockel von Steckverbinderhälften auf Leiterplatten oder dergleichen
DE9303887U1 (de) * 1993-03-16 1993-04-29 Siemens AG, 8000 München Kontaktleiste für Steckverbinder
US5288244A (en) * 1993-04-19 1994-02-22 Maxconn Incorporated Connector assembly having fixed unitary fasteners for mounting to a panel
FR2740913B1 (fr) * 1995-11-07 1997-12-05 Framatome Connectors France Element de maintien et de contact et connecteur le comprenant

Also Published As

Publication number Publication date
DE50014580D1 (de) 2007-10-04
EP1089384A1 (fr) 2001-04-04
DE19945705A1 (de) 2001-03-29
ES2292392T3 (es) 2008-03-16

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