EP1821369B1 - PCB plug-in extension - Google Patents

PCB plug-in extension Download PDF

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Publication number
EP1821369B1
EP1821369B1 EP07003208.1A EP07003208A EP1821369B1 EP 1821369 B1 EP1821369 B1 EP 1821369B1 EP 07003208 A EP07003208 A EP 07003208A EP 1821369 B1 EP1821369 B1 EP 1821369B1
Authority
EP
European Patent Office
Prior art keywords
contacts
circuit board
plug
board connector
extension according
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.)
Active
Application number
EP07003208.1A
Other languages
German (de)
French (fr)
Other versions
EP1821369A3 (en
EP1821369A2 (en
Inventor
Marc Lindkamp
Gert Havermann
Andreas Kohler
Dieter Rose
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 EP1821369A2 publication Critical patent/EP1821369A2/en
Publication of EP1821369A3 publication Critical patent/EP1821369A3/en
Application granted granted Critical
Publication of EP1821369B1 publication Critical patent/EP1821369B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits
    • 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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6581—Shield structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/60—Contacts spaced along planar side wall transverse to longitudinal axis of engagement
    • H01R24/62—Sliding engagements with one side only, e.g. modular jack coupling devices
    • 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
    • H01R13/26—Pin or blade contacts for sliding co-operation on one side only
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S439/00—Electrical connectors
    • Y10S439/951—PCB having detailed leading edge

Definitions

  • the invention relates generally to the field of connecting a printed circuit board to another printed circuit board, usually a so-called backplane.
  • the invention particularly relates to a printed circuit board plug-in extension according to the preamble of claim 1.
  • Such a printed circuit board plug-in extension is from the US-A-4,687,267 known.
  • the object of the invention is to provide a printed circuit board plug-in extension, which requires little space and can be plugged into a conventional card edge plug part. This object is achieved with the features of the characterizing part of claim 1.
  • the body consists of two partial areas and has a stepped shape, wherein the two partial areas are integrally stirred together, that the terminal ends of the two groups of contacts are arranged on one and the same side of the body, while the mating ends of the first group are arranged on a different side of the body than the mating ends of the second group, and that the contacts are guided by means of an approximately right-angled transition portion from the first portion to the second portion, the contacts of the first group always remain on the same side of the body while the contacts of the second group pass through the subarea once.
  • the solution according to the invention is based on the basic idea of "copying" the area of the printed circuit board, which serves to make contact with the printed conductors, to the printed circuit board plug-in extension, but at the same time improving it.
  • a plastic part can, in contrast to a printed circuit board, be manufactured with an accuracy of a few hundredths of a millimeter. In this way, the scatter of the insertion forces can be reduced when inserting the plug-in extension in the associated connector part.
  • the plug-in extension can be manufactured with dimensions that lie at the lower end of the permissible tolerance field. In this way, there is a further reduction of the insertion forces.
  • the area of the plug-in extension which serves for contacting is in the same plane as the printed circuit board.
  • the circuit board can therefore be guided and plugged in the conventional manner.
  • the contacts of the plug-in extension are only connected from one side to the circuit board, while the plug ends are on both sides of the plug-in extension, resulting in very small dimensions.
  • the transition portion of the contacts can be used advantageously for fastening the contacts themselves and for suitable biasing of the mating ends.
  • the mating ends of the contacts are bent for this purpose not exactly perpendicular to the transition section, but depending on the arrangement at an angle slightly larger or smaller than 90 °. Only by the final insertion of the transition section in the correct position, the contacts are then bent at an angle of 90 ° to the transition section, the resulting elastic bias can be used to suitably press the plug ends in a recording associated with them.
  • the body has at least one positioning projection, which can be positively inserted into a receptacle of the printed circuit board, to position the plug-in extension.
  • This makes it possible to mount the printed circuit board insertion extension precisely aligned with the printed circuit board, which is of particular importance when several printed circuit boards are combined to form a group.
  • the positioning projection is a cylindrical pin. Such a pin can be easily inserted into a hole in the circuit board.
  • the body is provided between the contacts of a group with openings that allow a free punching of the contacts.
  • This allows the contacts that must be passed through the body of the plug-in extension to punch so that they are initially connected by a bridge of material. This facilitates handling. Only after mounting on the body of the plug-in extension, the material bridges are removed by a suitable tool dips into the openings of the body. Then the contacts are separated.
  • the plug ends of the contacts terminate at different levels. This ensures that not all spring contacts of the plug part, in which the plug-in extension is inserted, are deflected simultaneously, but gradually. In this way, the insertion force is reduced.
  • incisions are provided in front of the plug ends which terminate in a level lying further back in the plugging direction.
  • the notches serve to guide the spring contacts of the plug part to the plug ends of the contacts located further back. The guide prevents the spring contacts from accidentally sliding on adjacent contacts.
  • the leadership of the spring contacts will be further improved if oblique Ein Sciencefasen are provided at the front end of the incisions.
  • air pockets are provided between the contacts and the body.
  • the air pockets make it possible to adjust the impedance of the contacts in the desired manner.
  • more air pockets can be provided at the front end of the plug ends, in front of the area in which attack the spring contacts of the plug part.
  • the transition section is designed with a reduced width, so that latching hooks can be formed approximately with the width of the contacts.
  • the reduction in the width of the transition sections makes it possible to bend the contacts in this area with less force.
  • the latching hooks determine with their dimensions how closely juxtaposed the contacts can be punched out of a material web. If the snap hooks are formed in a region of reduced width, the contacts can ultimately be punched out closer together.
  • the terminal ends of the ground contacts are at a level that seen from the plug ends behind this level
  • the terminal ends of the signal contacts are that behind the terminal ends of the signal contacts, the terminal ends of the ground contacts of the second group of contacts and that behind it are the terminal ends of the signal contacts of the second group.
  • the ground contacts of the two groups of contacts thus serve to shield between the signal contacts of the two groups, which improves the crosstalk attenuation.
  • spacers are arranged between the plug-in extensions, which are inserted laterally into the plug-in extensions, and that in each case a dowel pin extends through the spacers and the lateral regions of the plug-in extensions.
  • the spacers make it possible to mount several printed circuit boards and the associated printed circuit board insertion extensions into assemblies so that several printed circuit boards can be simultaneously inserted into the corresponding backplane connector parts.
  • the spacers are integrally formed on the plug-in extensions.
  • Each spacer is provided with a retaining pin and two positioning holes. This one-piece design reduces the manufacturing and assembly costs and also the tolerances occurring.
  • the invention also relates to an assembly with two or more plug-in extensions.
  • the printed circuit board push-in extension 10 is intended to be mounted on the edge of a printed circuit board so that a part of the printed circuit board plug-in extension projects away from the printed circuit board.
  • a Terminal area 12 is provided, opposite to a plug-in area 14, which is intended to be plugged into a connector to connect the circuit board.
  • the connection region 12 is formed on a first subregion 16 of the printed circuit board push-in extension 10, and the insertion region 14 is formed on a second subregion 18 (see in particular FIG. 5 ).
  • the two portions 16, 18 are generally rectangular in shape and overlap each other in the middle of the printed circuit board plug-in extension 10.
  • the printed circuit board plug-in extension 10 thus has, viewed from the side, a stepped shape.
  • the two sections 16, 18 are integrally formed with each other and made of plastic, which can be molded with very high precision, in particular injection-molded.
  • the plug-in area 14 on the second portion 18 is designed in the manner of a wide, generally rectangular tongue, with two constrictions 20 are provided laterally. These can serve to lock the PCB plug-in extension 10 and thus also the printed circuit board attached thereto to a connector. In the region of the constrictions 20, the contacts are inward.
  • the first portion 16 is designed with a slightly greater thickness than the second portion 18 and has at its lateral edges in each case a positioning Vorspung 22 in the form of a cylindrical pin.
  • the positioning tab 22 is used to hold the PCB tab extension 10 in a precisely defined position on a circuit board. In the vicinity of the positioning projections 22, the first portion 16 has a total of three openings 24, the task of which will be described later.
  • the printed circuit board push-in extension is equipped with two groups of contacts, which extend from the connection region 12 to the insertion region 14.
  • a first group of contacts 26 extend with a mating end 28 along the second portion 18, then as a transition portion 30 on the first portion 16 and then as a terminal end 32 away from the first portion 16.
  • a second group of contacts 27 extends with a mating end 28 along the side of the second portion 18, which faces away from the mating ends 28 of the contacts 26 of the first group, then by means of a transition portion 30 on the underside of the first portion 16 and then by means of a bent terminal end 32 through the first portion 16 through the connection area 12.
  • the contacts 26 of the first group differ from the contacts 27th
  • the second group thus essentially in that the contacts 26 of the first group always remain on the same side of the body 16, 18 of the PCB plug-in extension 10, based on the illustration of FIG. 6
  • the contacts 27 of the second group pass through the portion 16 once.
  • the mating ends 28 of the contacts 27 of the second group on the underside of the PCB plug-in extension, while the terminal ends 32 are located on the top.
  • the contacts of a group whose terminal ends 32 are closest to the transition sections 30, are used as ground contacts. These ground contacts are in the FIGS. 6 and 11 marked with M. Such an arrangement results in the remaining terminal ends 32 of the first group contacts 26 being separated from the mating area by the terminal ends 32 of the contacts 26 and the terminal ends 32 of the grounding conductors of the second group contacts 27 as signal conductors used connection ends.
  • the contacts 26 of the first group can be easily placed on the body 16, 18 after punching, for example by using their terminal ends 32 for transport. With respect to the contacts 27 of the second group, this is somewhat more difficult, since the terminal ends 32 of the contacts 27 must be inserted through the first portion 16 therethrough. For this reason, it is provided for the handling of the contacts 27 that they are still connected by punching material bridges. It must then only a single entity consisting of a variety still integrally interconnected contacts handled. Only after the attachment of the contacts 27 on the PCB plug-in extension 10, the material bridges are removed. For this purpose, small punched openings 56 are provided in the second partial area 18, into which a punching tool can dip when it removes the material bridges provided between these contacts 27 at these locations.
  • the plug-in portion 14 is chamfered at its foremost end.
  • the plug-in region 14 has a chamfer 34 on its upper side and its underside.
  • the chamfer 34 causes the spring contacts of the connector, in which the printed circuit board plug-in extension 10 is inserted, are slowly deflected when plugging in to the outside.
  • the mating ends 28 of the contacts terminate at different staggered levels.
  • the contacts terminate at different levels, with four levels I to IV as shown here.
  • the contacts starting at the first level I are preferably used as mass contacts M.
  • recesses 36 are provided which, in the case of two adjacent contacts starting at the same level, are separated by a partition wall 38.
  • a chamfer 34 is provided at the rear end of each incision 36.
  • the mating ends 28 of the contacts 26, 27 are in suitable receptacles 42 of the second body 18. Below the plug ends 28 a plurality of air pockets 44 are provided in the exceptions 42 (see in particular the FIGS. 7 and 10 ).
  • the air pockets serve on the one hand for impedance matching. On the other hand, they are advantageous for the correctly aligned, planar arrangement of the plug-in ends 28 in the receptacles 42; it is easier to partially support the plug-in ends 28 than to have to create a continuous, flat bearing surface.
  • the pockets 44 may be arranged in front of the area in which the spring contacts of the connector abut against the contacts when the printed circuit board push-in extension 10 is fully inserted into the connector; this area is in FIG. 10 indicated by B.
  • each contact 26, 27 has two latching hooks 46 formed on opposite sides of the transition section 30. These snap hooks are also in the FIGS. 12 and 13 to see. How very good in FIG. 13 can be seen, the latching hooks 46 are arranged by adjacent contacts of a group at different levels. The different height arrangement of the latching hooks on the one hand has the advantage that higher anchoring forces in the body of the printed circuit board plug-in extension 10th result. It is available for the transfer of holding forces more material available, if not at the same height the latching hook of the adjacent contact must be retained.
  • the contacts 27 of the second group have two latching hooks 48 on opposite sides of the connection end 32, respectively.
  • the attachment of the contacts 26, 27 at the portions 16, 18 of the printed circuit board insertion extension 10 is effected substantially by means of a groove 50 which is formed at the transition from the first portion 16 to the second portion 18 on the side of the terminal portion 12 (see in particular FIGS. 6 . 14 and 15 ).
  • the grooves 50 In the grooves 50, the transition portions 30 of the contacts 26 of the first group and the contacts 27 of the second group are accommodated.
  • the groove 50 has a trapezoidal shape, which in FIG. 16 is drawn. Due to the trapezoidal shape, the groove narrows towards the outside, so that the transition section 30 of the contacts 26, 27 is held towards the partial region 16 or 18.
  • each groove 50 On its upper side, from which the transition sections are inserted into the groove, each groove 50 has an insertion section 52, which is designed as a concave groove. The bottom of the channel is located laterally next to the groove 50 and has its lowest point approximately at the point at which the transition section 30 should be located after insertion.
  • the mating ends 28 of the contacts 26, 27 are designed so that the angle ⁇ (see FIG. 6 ) between the mating ends 28 and the transition sections 30 at the contacts 27 of the second group is slightly greater than 90 °, while the angle ⁇ between the mating ends 28 and the transition sections 30 of the contacts 26 of the first group is slightly smaller than 90 °. Then, when the transition portions 30 in the direction of the arrows P of FIG. 6 be pressed, the angle ⁇ is bent to 90 °, while the angle ⁇ is compressed to 90 °. In both cases, the mating ends 28 are resiliently acted upon in the receptacle 42 provided for them in the first body 18, where they remain without further action.
  • the contacts 26, 27 With the arrangement of the contacts 26, 27 shown, in particular, a very close arrangement of the contacts can be achieved.
  • the contacts are arranged in a pitch of 0.75 mm. From this it can be seen how little space between the contacts is available for anchoring them.
  • the printed circuit board plug-in extension 10 equipped with the contacts 26, 27 can be placed on the edge of a printed circuit board 60 (see FIGS FIGS. 18 and 19 ), wherein the terminal ends 32 of the contacts 26, 27 are connected to corresponding tracks of the circuit board 60.
  • the terminal ends 32 can either be soldered, soldered or pressed.
  • the additional latching hooks 48 of the contacts 27 of the second group ensure that the terminal ends 32 of these contacts are not pushed out of the first portion 16; the terminal ends 32 of the contacts 26 are supported without further measures reliably on the first portion 16 from.
  • this is provided with suitable holes into which the positioning projections 22 can engage.
  • the printed circuit board 60 can then be plugged with the PCB plug-in extension 10 in a card edge connector 70, which is arranged here on another circuit board 72, for example, a backplane.
  • a card edge connector 70 which is arranged here on another circuit board 72, for example, a backplane.
  • the use of the printed circuit board push-in extension 10 has the particular advantage that its plug-in region 14 can be designed with much higher accuracy than the edge region of a printed circuit board. Consequently For example, the contact forces that occur when inserting the board tab extension 10 into the card edge connector 70 can be much better controlled.
  • FIG. 20 an assembly is shown, which consists of four interconnected circuit boards 60 here.
  • each spacer 80 see, in particular FIG. 24 ), which have two retaining pins 82 on opposite sides.
  • a positioning opening 84 extends centrally through each spacer 80. The position of the retaining pins 82 and the positioning opening 84 corresponds to the arrangement of the openings 24 on the printed circuit board push-in extension 10.
  • the retaining pins 82 of the spacers 80 are inserted into the outer openings 24 of the printed circuit board tab extensions 60 arranged on the printed circuit boards 60. Then, a dowel pin 86 (see FIG. 23) is pushed through the positioning hole 84 of the spacers 80 and through the center hole 24 of the board tab extensions 10. In this way, all components are precisely aligned relative to each other, so that the assembly of the plurality of printed circuit boards 60 can be inserted into closely adjacent card edge connector 70, which are arranged on another circuit board 72, for example, a backplane.
  • the precise positioning of the PCB tab extensions 10 on the circuit boards 60 as well as their precise alignment with each other via the spacers 80 is particularly important because some of the circuit boards 60 are usually guided in a (not shown) guide so that they correctly into the card edge connector 70 can be inserted. If some of the PCB tab extensions 10 are not positioned correctly, alignment errors will result. For example, the circuit boards 60 could be fan-shaped rotated against each other. In this case, it is hardly possible to correctly guide the circuit boards by means of the guides provided so that the printed circuit board tab extensions 10 meet in their associated connector.
  • FIG. 25 an alternative embodiment is shown, in which the spacers 80 'are integrally formed on the plug-in extensions 10.
  • Each spacer 80 is provided with a retaining pin 82 and two positioning holes 84. This one-piece design reduces the manufacturing and assembly costs and also the tolerances occurring.
  • FIGS. 26 to 29 is shown a plug-in extension according to an alternative embodiment, which differs from that in the FIGS. 1 to 5 shown insertion extension differs in that was dispensed with the lateral constrictions. It is therefore not necessary to let the contacts dodge inwards. Instead, all contacts can be made straightforward.

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  • Coupling Device And Connection With Printed Circuit (AREA)
  • Combinations Of Printed Boards (AREA)

Description

Die Erfindung betrifft allgemein das Gebiet des Anschließens einer Leiterplatte an eine andere Leiterplatte, meist eine sogenannte Backplane. Die Erfindung betrifft insbesondere einen Leiterplatten-Steckfortsatz gemäß dem Oberbegriff des Patentanspruchs 1. Ein solcher Leiterplatten-Steckfortsatz ist aus der US-A-4,687,267 bekannt.The invention relates generally to the field of connecting a printed circuit board to another printed circuit board, usually a so-called backplane. The invention particularly relates to a printed circuit board plug-in extension according to the preamble of claim 1. Such a printed circuit board plug-in extension is from the US-A-4,687,267 known.

Es ist bekannt, eine Leiterplatte unmittelbar in einen Steckverbinder, z.B. einen Kartenrand-Steckverbinder, einzustecken. Dadurch werden Leiterbahnen, die in den Randbereich der Leiterplatte geführt sind, unmittelbar kontaktiert. Das Problem hierbei besteht insbesondere darin, dass Leiterplatten im Allgemeinen mit recht großen Toleranzen gefertigt werden. Beispielsweise ist eine Toleranz hinsichtlich der Dicke von ± 10 % üblich. Hieraus resultiert das Problem, dass der die Leiterplatte aufnehmende Steckverbinder bei einer Leiterplatte am unteren Ende der Toleranz trotzdem ausreichend hohe Kontaktkräfte gewährleisten muss, während bei einer Leiterplatte am oberen Ende der Toleranzen das Risiko einer Beschädigung der Federkontakte im Steckerteil verhindert sein muss und außerdem hohe Einsteckkräfte vermieden werden sollen.It is known to connect a circuit board directly into a connector, e.g. a card edge connector, plug in. As a result, printed conductors, which are guided in the edge region of the printed circuit board, contacted directly. The problem here is in particular that printed circuit boards are generally manufactured with fairly large tolerances. For example, a tolerance in thickness of ± 10% is common. This results in the problem that the connector receiving the PCB connector at a low end of the tolerance must nevertheless ensure sufficiently high contact forces, while at a circuit board at the top of the tolerances the risk of damage to the spring contacts in the plug part must be prevented and also high insertion forces should be avoided.

Es ist bereits bekannt, beispielsweise aus der US-Patentschrift 6,899,546 , einen Leiterplatten-Steckfortsatz zu verwenden, der auf einen Randbereich der Leiterplatte aufgesteckt wird und Kontakte enthält, welche die dort angeordneten Leiterbahnen kontaktieren. Der Steckfortsatz kann dann wiederum in einen geeigneten Steckverbinder eingesteckt werden. Nachteilig bei dieser Lösung ist zum einen, dass ein vergleichsweise großer Bauraum erforderlich ist, da der Leiterplatten-Steckfortsatz die Leiterplatte auf beiden Seiten umgibt. Nachteilig ist weiterhin, dass ein spezieller Steckverbinder zur Aufnahme des Steckfortsatzes notwendig ist, da dessen Dicke größer ist als die Dicke der Leiterplatte.It is already known, for example from the U.S. Patent 6,899,546 to use a printed circuit board plug-in extension, which is plugged onto an edge region of the printed circuit board and contains contacts which contact the conductor tracks arranged there. The plug-in extension can then be plugged into a suitable connector. The disadvantage of this solution is, on the one hand, that a comparatively large installation space is required, since the printed circuit board plug-in extension surrounds the printed circuit board on both sides. A further disadvantage is that a special connector for receiving the plug-in extension is necessary because its thickness is greater than the thickness of the circuit board.

Die Aufgabe der Erfindung besteht darin, einen Leiterplatten-Steckfortsatz zu schaffen, der wenig Platz benötigt und in ein herkömmliches Kartenrand-Steckerteil eingesteckt werden kann. Diese Aufgabe wird mit den Merkmalen des kennzeichnenden Teil des Anspruchs 1 gelöst.The object of the invention is to provide a printed circuit board plug-in extension, which requires little space and can be plugged into a conventional card edge plug part. This object is achieved with the features of the characterizing part of claim 1.

Erfindungsgemäß ist vorgesehen, dass der Körper aus zwei Teilbereichen besteht und eine gestufte Form aufweist, wobei die beiden Teilbereiche einstückig miteinander ausgerührt sind, dass die Anschlussenden der beiden Gruppen von Kontakten auf ein und derselben Seite des Körpers angeordnet sind, während die Steckenden der ersten Gruppe auf einer anderen Seite des Körpers angeordnet sind als die Steckenden der zweiten Gruppe, und dass die Kontakte mittels eines etwa rechtwinklig abgebogenen Übergangsabschnittes vom ersten Teilbereich auf den zweiten Teilbereich geführt werden, wobei die Kontakte der ersten Gruppe immer auf derselben Seite des Körpers verbleiben, während die Kontakte der zweiten Gruppe den Teilbereich einmal durchqueren. Die erfindungsgemäße Lösung basiert auf der Grundidee, den Bereich der Leiterplatte, der zur Kontaktierung der Leiterbahnen dient, auf den Leiterplatten-Steckfortsatz zu "kopieren", aber gleichzeitig zu verbessern. Dies betrifft insbesondere die Abmessungen und Toleranzen. Ein Kunststoffteil kann, im Gegensatz zu einer Leiterplatte, mit einer Genauigkeit von wenigen hundertstel Millimetern hergestellt werden. Auf diese Weise kann die Streuung der Steckkräfte beim Einstecken des Steckfortsatzes in das zugeordnete Steckerteil reduziert werden. Insbesondere kann der Steckfortsatz mit Abmessungen gefertigt werden, die am unteren Ende des zulässigen Toleranzfeldes liegen. Auf diese Weise ergibt sich eine weitere Verringerung der Steckkräfte. Weiterhin befindet sich der Bereich des Steckfortsatzes, der zur Kontaktierung dient, in derselben Ebene wie die Leiterplatte. Die Leiterplatte kann also in der herkömmlichen Weise geführt und eingesteckt werden. Da außerdem die Kontakte des Steckfortsatzes nur von einer Seite mit der Leiterplatte verbunden werden, während die Steckenden auf beiden Seiten des Steckfortsatzes liegen, ergeben sich sehr geringe Abmessungen. Aus der erfindungsgemäßen Gestalt des Körpers resultiert eine besonders kompakte Bauform. Ferner kann der Übergangsabschnitt der Kontakte in vorteilhafter Weise zur Befestigung der Kontakte selbst sowie zum geeigneten Vorspannen der Steckenden genutzt werden. Die Steckenden der Kontakte werden zu diesem Zweck nicht genau rechtwinklig zum Übergangsabschnitt gebogen, sondern je nach Anordnung in einem Winkel geringfügig größer oder kleiner 90°. Erst durch das endgültige Einschieben des Übergangsabschnittes in die korrekte Position werden die Kontakte dann in einen Winkel von 90° zum Übergangsabschnitt gebogen, wobei die sich daraus ergebende elastische Vorspannung dazu verwendet werden kann, die Steckenden geeignet in eine ihnen zugeordnete Aufnahme zu drücken.According to the invention, it is provided that the body consists of two partial areas and has a stepped shape, wherein the two partial areas are integrally stirred together, that the terminal ends of the two groups of contacts are arranged on one and the same side of the body, while the mating ends of the first group are arranged on a different side of the body than the mating ends of the second group, and that the contacts are guided by means of an approximately right-angled transition portion from the first portion to the second portion, the contacts of the first group always remain on the same side of the body while the contacts of the second group pass through the subarea once. The solution according to the invention is based on the basic idea of "copying" the area of the printed circuit board, which serves to make contact with the printed conductors, to the printed circuit board plug-in extension, but at the same time improving it. This concerns in particular the dimensions and tolerances. A plastic part can, in contrast to a printed circuit board, be manufactured with an accuracy of a few hundredths of a millimeter. In this way, the scatter of the insertion forces can be reduced when inserting the plug-in extension in the associated connector part. In particular, the plug-in extension can be manufactured with dimensions that lie at the lower end of the permissible tolerance field. In this way, there is a further reduction of the insertion forces. Furthermore, the area of the plug-in extension which serves for contacting is in the same plane as the printed circuit board. The circuit board can therefore be guided and plugged in the conventional manner. In addition, since the contacts of the plug-in extension are only connected from one side to the circuit board, while the plug ends are on both sides of the plug-in extension, resulting in very small dimensions. From the shape of the body according to the invention results in a particularly compact design. Furthermore, the transition portion of the contacts can be used advantageously for fastening the contacts themselves and for suitable biasing of the mating ends. The mating ends of the contacts are bent for this purpose not exactly perpendicular to the transition section, but depending on the arrangement at an angle slightly larger or smaller than 90 °. Only by the final insertion of the transition section in the correct position, the contacts are then bent at an angle of 90 ° to the transition section, the resulting elastic bias can be used to suitably press the plug ends in a recording associated with them.

Vorzugsweise weist der Körper mindestens einen Positionierungsvorsprung auf, der formschlüssig in eine Aufnahme der Leiterplatte eingesetzt werden kann, um den Steckfortsatz zu positionieren. Dies ermöglicht, den Leiterplatten-Steckfortsatz präzise ausgerichtet an der Leiterplatte anzubringen, was von besonderer Bedeutung ist, wenn mehrere Leiterplatten zu einer Gruppe zusammengefasst werden.Preferably, the body has at least one positioning projection, which can be positively inserted into a receptacle of the printed circuit board, to position the plug-in extension. This makes it possible to mount the printed circuit board insertion extension precisely aligned with the printed circuit board, which is of particular importance when several printed circuit boards are combined to form a group.

Vorzugsweise ist der Positionierungsvorsprung ein zylindrischer Stift. Ein solcher Stift kann leicht in eine Bohrung in der Leiterplatte eingesteckt werden.Preferably, the positioning projection is a cylindrical pin. Such a pin can be easily inserted into a hole in the circuit board.

Vorzugsweise ist vorgesehen, dass der Körper zwischen den Kontakten einer Gruppe mit Öffnungen versehen ist, die ein Freistanzen der Kontakte ermöglichen. Dies ermöglicht, die Kontakte, die durch den Körper des Steckfortsatzes hindurchgeführt werden müssen, so zu stanzen, dass sie zunächst noch durch eine Materialbrücke miteinander verbunden sind. Dadurch ist die Handhabung erleichtert. Erst nach der Montage am Körper des Steckfortsatzes werden die Materialbrücken entfernt, indem ein geeignetes Werkzeug in die Öffnungen des Körpers eintaucht. Dann sind die Kontakte voneinander getrennt.Preferably, it is provided that the body is provided between the contacts of a group with openings that allow a free punching of the contacts. This allows the contacts that must be passed through the body of the plug-in extension to punch so that they are initially connected by a bridge of material. This facilitates handling. Only after mounting on the body of the plug-in extension, the material bridges are removed by a suitable tool dips into the openings of the body. Then the contacts are separated.

Vorzugsweise ist vorgesehen, dass die Steckenden der Kontakte auf unterschiedlichen Niveaus enden. Dies gewährleistet, dass nicht alle Federkontakte des Steckerteils, in welches der Steckfortsatz eingesteckt wird, gleichzeitig ausgelenkt werden, sondern stufenweise. Auf diese Weise wird die Steckkraft reduziert.It is preferably provided that the plug ends of the contacts terminate at different levels. This ensures that not all spring contacts of the plug part, in which the plug-in extension is inserted, are deflected simultaneously, but gradually. In this way, the insertion force is reduced.

Vorzugsweise ist vorgesehen, dass vor den Steckenden, die auf einem in Steckrichtung gesehen weiter hinten liegenden Niveau enden, Einschnitte vorgesehen sind. Die Einschnitte dienen zur Führung der Federkontakte des Steckerteils zu den Steckenden der weiter hinten liegenden Kontakte. Die Führung verhindert, dass die Federkontakte versehentlich auf benachbarte Kontakte rutschen. Die Führung der Federkontakte wird noch weiter verbessert, wenn am vorderen Ende der Einschnitte schräge Einführfasen vorgesehen sind.Preferably, it is provided that incisions are provided in front of the plug ends which terminate in a level lying further back in the plugging direction. The notches serve to guide the spring contacts of the plug part to the plug ends of the contacts located further back. The guide prevents the spring contacts from accidentally sliding on adjacent contacts. The leadership of the spring contacts will be further improved if oblique Einführfasen are provided at the front end of the incisions.

Vorzugweise sind zwischen den Kontakten und dem Körper Lufttaschen vorgesehen. Die Lufttaschen ermöglichen es, die Impedanz der Kontakte in der gewünschten Weise einzustellen. Dabei können weitere Lufttaschen am vordersten Ende der Steckenden vorgesehen sein, vor dem Bereich, in welchem die Federkontakte des Steckerteils angreifen.Preferably, air pockets are provided between the contacts and the body. The air pockets make it possible to adjust the impedance of the contacts in the desired manner. In this case, more air pockets can be provided at the front end of the plug ends, in front of the area in which attack the spring contacts of the plug part.

Vorzugsweise ist vorgesehen, dass der Übergangsabschnitt mit einer verringerten Breite ausgeführt ist, so dass Rasthaken etwa mit der Breite der Kontakte gebildet werden können. Die Verringerung der Breite der Übergangsabschnitte ermöglicht, die Kontakte in diesem Bereich mit geringerer Kraft biegen zu können. Die Rasthaken bestimmen mit ihren Abmessungen, wie eng nebeneinanderliegend die Kontakte aus einer Materialbahn ausgestanzt werden können. Wenn die Rasthaken in einem Bereich mit verringerter Breite gebildet werden, können die Kontakte letztendlich enger nebeneinander ausgestanzt werden.It is preferably provided that the transition section is designed with a reduced width, so that latching hooks can be formed approximately with the width of the contacts. The reduction in the width of the transition sections makes it possible to bend the contacts in this area with less force. The latching hooks determine with their dimensions how closely juxtaposed the contacts can be punched out of a material web. If the snap hooks are formed in a region of reduced width, the contacts can ultimately be punched out closer together.

Vorzugsweise ist vorgesehen, dass von den Kontakten der ersten Gruppe die Anschlussenden der Massenkontakte auf einem Niveau liegen, dass von den Steckenden gesehen hinter diesem Niveau die Anschlussenden der Signalkontakte liegen, dass hinter den Anschlussenden der Signalkontakte die Anschlussenden der Massekontakte der zweiten Gruppe von Kontakten liegt und dass dahinter die Anschlussenden der Signalkontakte der zweiten Gruppe liegen. Die Massekontakte der beiden Gruppen von Kontakten dienen damit zur Abschirmung zwischen den Signalkontakten der beiden Gruppen, was die Übersprechdämpfung verbessert.Preferably, it is provided that of the contacts of the first group, the terminal ends of the ground contacts are at a level that seen from the plug ends behind this level, the terminal ends of the signal contacts are that behind the terminal ends of the signal contacts, the terminal ends of the ground contacts of the second group of contacts and that behind it are the terminal ends of the signal contacts of the second group. The ground contacts of the two groups of contacts thus serve to shield between the signal contacts of the two groups, which improves the crosstalk attenuation.

Vorzugsweise ist vorgesehen, dass zwischen den Steckfortsätzen Distanzhalter angeordnet sind, die seitlich in die Steckfortsätze eingesteckt sind, und dass sich durch die Distanzhalter und die seitlichen Bereiche der Steckfortsätze jeweils ein Passstift ersteckt. Die Distanzhalter ermöglichen es, mehrere Leiterplatten und die zugehörigen Leiterplatten-Steckfortsätze zu Baugruppen zu montieren, so dass bis mehrere Leiterplatten gleichzeitig in die entsprechenden Backplane-Steckerteile eingeschoben werden können.It is preferably provided that spacers are arranged between the plug-in extensions, which are inserted laterally into the plug-in extensions, and that in each case a dowel pin extends through the spacers and the lateral regions of the plug-in extensions. The spacers make it possible to mount several printed circuit boards and the associated printed circuit board insertion extensions into assemblies so that several printed circuit boards can be simultaneously inserted into the corresponding backplane connector parts.

Alternativ ist vorgesehen, dass die Distanzhalter an die Steckfortsätze angeformt sind. Jeder Distanzhalter ist dabei mit einen Haltezapfen und zwei Positionierungsöffnungen versehen. Diese einstückige Ausgestaltung verringert den Herstellungs- und Montageaufwand und auch die auftretenden Toleranzen.Alternatively, it is provided that the spacers are integrally formed on the plug-in extensions. Each spacer is provided with a retaining pin and two positioning holes. This one-piece design reduces the manufacturing and assembly costs and also the tolerances occurring.

Die Erfindung betrifft auch eine Baugruppe mit zwei oder mehr Steckfortsätzen.The invention also relates to an assembly with two or more plug-in extensions.

Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den abhängigen Ansprüchen.Advantageous embodiments of the invention will become apparent from the dependent claims.

Die Erfindung wird nachfolgend anhand verschiedener Ausführungsformen beschrieben, die in den beigefügten Zeichnungen dargestellt sind. In diesen zeigen:

  • Figur 1 eine Draufsicht auf einen erfindungsgemäßen Leiterplatten-Steckfortsatz;
  • Figur 2 eine Rückansicht des Leiterplatten-Steckfortsatzes von Figur 1;
  • Figur 3 eine Unteransicht des Leiterplatten-Steckfortsatzes von Figur 1;
  • Figur 4 eine Vorderansicht des Leiterplatten-Steckfortsatzes von Figur 1;
  • Figur 5 eine Seitenansicht des Leiterplatten-Steckfortsatzes von Figur 1;
  • Figur 6 einen Schnitt durch den Leiterplatten-Steckfortsatz von Figur 1;
  • Figur 7 in vergrößertem Maßstab ein Detail von Figur 6;
  • Figur 8 eine Detailansicht des steckseitigen Endes des Leiterplatten-Steckfortsatzes;
  • Figur 9 in wiederum vergrößertem Maßstab ein Detail der Steckseite des Leiterplatten-Steckfortsatzes;
  • Figur 10 eine Unteransicht der Steckseite des Leiterplatten-Steckfortsatzes, wobei einige Kontakte entfernt wurden;
  • Figur 11 einen Ausschnitt von einigen Kontakten des Leiterplatten-Steckfortsatzes, wobei zur Verdeutlichung der Körper des Steckfortsatzes nicht dargestellt ist;
  • Figur 12 den Übergangsabschnitt von einigen Kontakten;
  • Figur 13 in vergrößertem Maßstab ein Detail der Kontakte;
  • Figur 14 ein Detail des Körpers des Leiterplatten-Steckfortsatzes, wobei die Kontakte nicht dargestellt sind;
  • Figur 15 in vergrößertem Maßstab einen Ausschnitt des Leiterplatten-Steckfortsatzes, wobei die Kontakte vormontiert sind;
  • Figur 16 in einer Detailansicht eine Draufsicht auf die montierten Kontakte;
  • Figur 17 in einer vergrößerten Detailansicht die Anschlußenden einiger vormontierter Kontakte;
  • Figur 18 in einer perspektivischen Ansicht eine Leiterplatte, die mit einem erfindungsgemäßen Leiterplatten-Steckfortsatz versehen ist, der wiederum in einen Kartenrand-Steckverbinder eingesetzt ist;
  • Figur 19 in einer Seitenansicht die Baugruppe von Figur 18;
  • Figur 20 in einer perspektivischen Ansicht eine andere Baugruppe, die aus mehreren Leiterplatten mit daran angebrachten Leiterplatten-Steckfortsätzen besteht und in Kartenrand-Steckverbinder eingesteckt werden kann;
  • Figur 21 in einer perspektivischen Ansicht die Leiterplatten kurz bevor sie zusammengefügt werden;
  • Figur 22 in einer schematischen Seitenansicht die noch nicht zusammengefügten Leiterplatten der Baugruppe von Figur 20;
  • Figur 23 in einer perspektivischen Ansicht einen bei der Baugruppe von Figur 21 verwendeten Passstift;
  • Figur 24 in einer perspektivischen Ansicht einen bei der Baugruppe von Figur 21 verwendeten Distanzhalter;
  • Figur 25 in einer perspektivischen Ansicht einen Leiterplatten-Steckfortsatz gemäß einer alternativen Ausgestaltung;
  • Figur 26 eine Draufsicht auf einen Leiterplatten-Steckfortsatz gemäß weiteren alternativen Ausgestaltung;
  • Figur 27 eine Rückansicht des Leiterplatten-Steckfortsatzes von Figur 26;
  • Figur 28 eine Unteransicht des Leiterplatten-Steckfortsatzes von Figur 26; und
  • Figur 29 eine Seitenansicht des Leiterplatten-Steckfortsatzes von Figur 26.
The invention will be described below with reference to various embodiments, which are illustrated in the accompanying drawings. In these show:
  • FIG. 1 a plan view of a printed circuit board plug-in extension according to the invention;
  • FIG. 2 a rear view of the PCB plug-in extension of FIG. 1 ;
  • FIG. 3 a bottom view of the PCB plug-in extension of FIG. 1 ;
  • FIG. 4 a front view of the PCB plug-in extension of FIG. 1 ;
  • FIG. 5 a side view of the PCB plug-in extension of FIG. 1 ;
  • FIG. 6 a section through the PCB plug-in extension of FIG. 1 ;
  • FIG. 7 on a larger scale a detail of FIG. 6 ;
  • FIG. 8 a detailed view of the plug-side end of the PCB plug-in extension;
  • FIG. 9 in turn, on an enlarged scale, a detail of the mating side of the PCB plug-in extension;
  • FIG. 10 a bottom view of the mating side of the PCB plug-in extension, with some contacts were removed;
  • FIG. 11 a section of some contacts of the printed circuit board plug-in extension, wherein for clarity, the body of the plug-in extension is not shown;
  • FIG. 12 the transition section of some contacts;
  • FIG. 13 on a larger scale a detail of the contacts;
  • FIG. 14 a detail of the body of the PCB plug-in extension, wherein the contacts are not shown;
  • FIG. 15 on an enlarged scale, a section of the printed circuit board plug-in extension, wherein the contacts are pre-assembled;
  • FIG. 16 in a detailed view of a plan view of the mounted contacts;
  • FIG. 17 in an enlarged detail view the terminal ends of some pre-assembled contacts;
  • FIG. 18 in a perspective view of a printed circuit board, which is provided with a circuit board push-in extension according to the invention, which in turn is inserted into a card edge connector;
  • FIG. 19 in a side view the assembly of FIG. 18 ;
  • FIG. 20 in a perspective view of another assembly, which consists of a plurality of printed circuit boards with printed circuit board slot extensions attached thereto and can be plugged into card edge connector;
  • FIG. 21 in a perspective view of the circuit boards just before they are joined together;
  • FIG. 22 in a schematic side view of the not yet assembled circuit boards of the assembly of FIG. 20 ;
  • FIG. 23 in a perspective view one in the assembly of FIG. 21 used dowel pin;
  • FIG. 24 in a perspective view one in the assembly of FIG. 21 used spacers;
  • FIG. 25 in a perspective view of a printed circuit board insertion extension according to an alternative embodiment;
  • FIG. 26 a plan view of a printed circuit board plug-in extension according to further alternative embodiment;
  • FIG. 27 a rear view of the PCB plug-in extension of FIG. 26 ;
  • FIG. 28 a bottom view of the PCB plug-in extension of FIG. 26 ; and
  • FIG. 29 a side view of the PCB plug-in extension of FIG. 26 ,

Anhand der Figuren 1 bis 6 wird nun zunächst der allgemeine Aufbau eines erfindungsgemäßen Leiterplatten-Steckfortsatzes 10 beschrieben. Der Leiterplatten-Steckfortsatz 10 ist dafür vorgesehen, am Rand einer Leiterplatte so angebracht zu werden, daß ein Teil des Leiterplatten-Steckfortsatzes von der Leiterplatte weg ragt. Zur Befestigung und Kontaktierung des Leiterplatten-Steckfortsatzes an der Leiterplatte ist am Leiterplatten-Steckfortsatz 10 ein Anschlußbereich 12 vorgesehen, dem gegenüber ein Steckbereich 14 liegt, der dafür vorgesehen ist, in einen Steckverbinder eingesteckt zu werden, um die Leiterplatte anzuschließen. Der Anschlußbereich 12 ist an einem ersten Teilbereich 16 des Leiterplatten-Steckfortsatzes 10 gebildet, und der Steckbereich 14 ist an einem zweiten Teilbereich 18 gebildet (siehe insbesondere Figur 5). Die beiden Teilbereiche 16, 18 sind allgemein rechteckig ausgebildet und überlappen einander in der Mitte des Leiterplatten-Steckfortsatzes 10. Der Leiterplatten-Steckfortsatz 10 hat somit, von der Seite betrachtet, eine gestufte Form. Die beiden Teilbereiche 16, 18 sind einstückig miteinander ausgeführt und bestehen aus Kunststoff, der mit sehr hoher Präzision abgeformt werden kann, insbesondere spritzgegossen werden kann.Based on FIGS. 1 to 6 First, the general structure of a printed circuit board plug-in extension 10 according to the invention will now be described. The printed circuit board push-in extension 10 is intended to be mounted on the edge of a printed circuit board so that a part of the printed circuit board plug-in extension projects away from the printed circuit board. For mounting and contacting the printed circuit board plug-in extension on the circuit board is at the PCB plug-in extension 10 a Terminal area 12 is provided, opposite to a plug-in area 14, which is intended to be plugged into a connector to connect the circuit board. The connection region 12 is formed on a first subregion 16 of the printed circuit board push-in extension 10, and the insertion region 14 is formed on a second subregion 18 (see in particular FIG FIG. 5 ). The two portions 16, 18 are generally rectangular in shape and overlap each other in the middle of the printed circuit board plug-in extension 10. The printed circuit board plug-in extension 10 thus has, viewed from the side, a stepped shape. The two sections 16, 18 are integrally formed with each other and made of plastic, which can be molded with very high precision, in particular injection-molded.

Der Steckbereich 14 auf dem zweiten Teilbereich 18 ist nach Art einer breiten, allgemein rechteckigen Zunge ausgeführt, wobei seitlich zwei Einschnürungen 20 vorgesehen sind. Diese können dazu dienen, den Leiterplatten-Steckfortsatz 10 und damit auch die daran angebrachte Leiterplatte an einem Steckverbinder zu verriegeln. Im Bereich der Einschnürungen 20 weichen die Kontakte nach innen aus.The plug-in area 14 on the second portion 18 is designed in the manner of a wide, generally rectangular tongue, with two constrictions 20 are provided laterally. These can serve to lock the PCB plug-in extension 10 and thus also the printed circuit board attached thereto to a connector. In the region of the constrictions 20, the contacts are inward.

Der erste Teilbereich 16 ist mit einer etwas größeren Dicke ausgeführt als der zweite Teilbereich 18 und weist an seinen seitlichen Rändern jeweils einen Positionierungsvorspung 22 in der Form eines zylindrischen Stiftes auf. Der Positionierungsvorspung 22 wird dazu verwendet, den Leiterplatten-Steckfortsatz 10 in einer präzise definierten Position an einer Leiterplatte zu halten. In der Nähe der Positionierungsvorspünge 22 weist der erste Teilbereich 16 insgesamt drei Öffnungen 24 auf, deren Aufgabe später beschrieben wird.The first portion 16 is designed with a slightly greater thickness than the second portion 18 and has at its lateral edges in each case a positioning Vorspung 22 in the form of a cylindrical pin. The positioning tab 22 is used to hold the PCB tab extension 10 in a precisely defined position on a circuit board. In the vicinity of the positioning projections 22, the first portion 16 has a total of three openings 24, the task of which will be described later.

Der Leiterplatten-Steckfortsatz ist mit zwei Gruppen von Kontakten bestückt, die sich vom Anschlußbereich 12 zum Steckbereich 14 erstrecken. Eine erste Gruppe von Kontakten 26 erstreckt sich mit einem Steckende 28 entlang dem zweiten Teilbereich 18, dann als Übergangsabschnitt 30 auf den ersten Teilbereich 16 und dann als Anschlußende 32 wieder weg vom ersten Teilbereich 16. Eine zweite Gruppe von Kontakten 27 erstreckt sich mit einem Steckende 28 entlang der Seite des zweiten Teilbereichs 18, die von den Steckenden 28 der Kontakte 26 der ersten Gruppe abgewandt ist, dann mittels eines Übergangsabschnittes 30 auf die Unterseite des ersten Teilbereichs 16 und dann mittels eines abgebogenen Anschlußendes 32 durch den ersten Teilbereich 16 hindurch zum Anschlußbereich 12. Die Kontakte 26 der ersten Gruppe unterscheiden sich von den Kontakten 27 der zweiten Gruppe also im wesentlichen dadurch, daß die Kontakte 26 der ersten Gruppe immer auf derselben Seite des Körpers 16, 18 des Leiterplatten-Steckfortsatzes 10 verbleiben, bezogen auf die Darstellung von Figur 6 also auf der oberen Seite, während die Kontakte 27 der zweiten Gruppe den Teilbereich 16 einmal durchqueren. Wieder bezogen auf die Darstellung von Figur 6 befinden sich die Steckenden 28 der Kontakte 27 der zweiten Gruppe auf der Unterseite des Leiterplatten-Steckfortsatzes, während die Anschlußenden 32 sich auf der Oberseite befinden.The printed circuit board push-in extension is equipped with two groups of contacts, which extend from the connection region 12 to the insertion region 14. A first group of contacts 26 extend with a mating end 28 along the second portion 18, then as a transition portion 30 on the first portion 16 and then as a terminal end 32 away from the first portion 16. A second group of contacts 27 extends with a mating end 28 along the side of the second portion 18, which faces away from the mating ends 28 of the contacts 26 of the first group, then by means of a transition portion 30 on the underside of the first portion 16 and then by means of a bent terminal end 32 through the first portion 16 through the connection area 12. The contacts 26 of the first group differ from the contacts 27th The second group thus essentially in that the contacts 26 of the first group always remain on the same side of the body 16, 18 of the PCB plug-in extension 10, based on the illustration of FIG. 6 Thus, on the upper side, while the contacts 27 of the second group pass through the portion 16 once. Again referring to the representation of FIG. 6 are the mating ends 28 of the contacts 27 of the second group on the underside of the PCB plug-in extension, while the terminal ends 32 are located on the top.

Zur Verbesserung der Abschirmung ist vorgesehen, daß die Kontakte einer Gruppe, deren Anschlußenden 32 am nächsten zu den Übergangsabschnitten 30 liegen, als Massekontakte genutzt werden. Diese Massekontakte sind in den Figuren 6 und 11 mit M gekennzeichnet. Eine solche Anordnung führt dazu, daß die übrigen Anschlußenden 32 der Kontakte 26 der ersten Gruppe durch die als Masseleiter dienenden Anschlußenden 32 der Kontakte 26 vom Steckbereich getrennt sind und von den Anschlußenden 32 der Masseleiter der Kontakte 27 der zweiten Gruppe von deren übrigen, als Signalleiter benutzten Anschlußenden.To improve the shield is provided that the contacts of a group whose terminal ends 32 are closest to the transition sections 30, are used as ground contacts. These ground contacts are in the FIGS. 6 and 11 marked with M. Such an arrangement results in the remaining terminal ends 32 of the first group contacts 26 being separated from the mating area by the terminal ends 32 of the contacts 26 and the terminal ends 32 of the grounding conductors of the second group contacts 27 as signal conductors used connection ends.

Die Kontakte 26 der ersten Gruppe können nach dem Stanzen einfach am Körper 16, 18 angeordnet werden, indem beispielsweise ihre Anschlußenden 32 zum Transport verwendet werden. Hinsichtlich der Kontakte 27 der zweiten Gruppe gestaltet sich dies etwas schwieriger, da die Anschlußenden 32 der Kontakte 27 durch den ersten Teilbereich 16 hindurch gesteckt werden müssen. Aus diesem Grunde ist für die Handhabung der Kontakte 27 vorgesehen, daß diese nach dem Stanzen noch durch Materialbrücken verbunden sind. Es muß dann nur ein einziges Gebilde, bestehend aus einer Vielzahl noch einstückig miteinander verbundener Kontakte, gehandhabt werden. Erst nach der Anbringung der Kontakte 27 am Leiterplatten-Steckfortsatz 10 werden die Materialbrücken entfernt. Zu diesem Zweck sind im zweiten Teilbereich 18 kleine Stanzöffnungen 56 vorgesehen, in die ein Stanzwerkzeug eintauchen kann, wenn es die an diesen Stellen vorgesehenen Materialbrücken zwischen den Kontakten 27 entfernt.The contacts 26 of the first group can be easily placed on the body 16, 18 after punching, for example by using their terminal ends 32 for transport. With respect to the contacts 27 of the second group, this is somewhat more difficult, since the terminal ends 32 of the contacts 27 must be inserted through the first portion 16 therethrough. For this reason, it is provided for the handling of the contacts 27 that they are still connected by punching material bridges. It must then only a single entity consisting of a variety still integrally interconnected contacts handled. Only after the attachment of the contacts 27 on the PCB plug-in extension 10, the material bridges are removed. For this purpose, small punched openings 56 are provided in the second partial area 18, into which a punching tool can dip when it removes the material bridges provided between these contacts 27 at these locations.

Wie in Figur 6 und insbesondere in den Figuren 8 bis 9 deutlich zu erkennen ist, ist der Steckbereich 14 an seinem vordersten Ende abgeschrägt. Zu diesem Zweck weist der Steckbereich 14 an seiner Oberseite und seiner Unterseite jeweils eine Fase 34 auf. Die Fase 34 führt dazu, daß die Federkontakte des Steckverbinders, in den der Leiterplatten-Steckfortsatz 10 eingesteckt wird, beim Einstecken langsam nach außen ausgelenkt werden. Zusätzlich ist vorgesehen, daß die Steckenden 28 der Kontakte auf unterschiedlich gestaffelten Niveaus enden. Wie in Figur 8 angedeutet ist, enden die Kontakte auf unterschiedlichen Niveaus, wobei wie hier gezeigt vier Niveaus I bis IV vorgesehen sind. Die auf dem ersten Niveau I beginnenden Kontakte werden bevorzugt als Massenkontakte M verwenden.As in FIG. 6 and in particular in the FIGS. 8 to 9 can be clearly seen, the plug-in portion 14 is chamfered at its foremost end. For this purpose, the plug-in region 14 has a chamfer 34 on its upper side and its underside. The chamfer 34 causes the spring contacts of the connector, in which the printed circuit board plug-in extension 10 is inserted, are slowly deflected when plugging in to the outside. In addition, it is intended that the mating ends 28 of the contacts terminate at different staggered levels. As in FIG. 8 is indicated, the contacts terminate at different levels, with four levels I to IV as shown here. The contacts starting at the first level I are preferably used as mass contacts M.

Vor den Steckenden 28 der Kontakte, die auf den zweiten oder dritten Niveau enden bzw. beginnen, sind Einschnitte 36 vorgesehen, die im Falle von zwei nebeneinanderliegenden, auf demselben Niveau beginnenden Kontakten durch eine Trennwand 38 getrennt sind. Am hinteren Ende jedes Einschnittes 36 ist wiederum eine Fase 34 vorgesehen. Diese Ausgestaltung führt dazu, daß die Federkontakte des Steckverbinders beim Einstecken des Leiterplatten-Steckfortsatzes 10 zu unterschiedlichen Zeitpunkten ausgelenkt werden. Die später auszulenkenden Federkontakte gleiten dabei in den Einschnitten 36 und werden gegebenenfalls durch die Trennwände 38 sowie am Vorderrand vorgesehene Einführfasen 40 (siehe insbesondere Figur 9) auf das Steckende des ihnen zugeordneten Kontaktes geleitet.In front of the mating ends 28 of the contacts, which end or start at the second or third level, recesses 36 are provided which, in the case of two adjacent contacts starting at the same level, are separated by a partition wall 38. At the rear end of each incision 36, in turn, a chamfer 34 is provided. This configuration results in that the spring contacts of the connector are deflected during insertion of the printed circuit board plug-in extension 10 at different times. The later deflected spring contacts slide in the incisions 36 and are optionally provided by the partitions 38 and provided at the front edge Einführfasen 40 (see, in particular FIG. 9 ) directed to the mating end of their associated contact.

Die Steckenden 28 der Kontakte 26, 27 liegen in geeigneten Aufnahmen 42 des zweiten Körpers 18 auf. Unterhalb der Steckenden 28 sind in den Ausnahmen 42 mehrere Lufttaschen 44 vorgesehen (siehe insbesondere die Figuren 7 und 10). Die Lufttaschen dienen zum einen zur Impedanzanpassung. Zum anderen sind sie vorteilhaft für die korrekt ausgerichtete, plane Anordnung der Steckenden 28 in den Aufnahmen 42; es ist einfacher, die Steckenden 28 gezielt partiell zu unterstützen, als eine durchgehende, ebene Auflagefläche schaffen zu müssen. Bei den Kontakten, die auf dem ersten Niveau I beginnen, können die Taschen 44 noch vor dem Bereich angeordnet sind, in welchem die Federkontakte des Steckverbinders an den Kontakten anliegen, wenn der Leiterplatten-Steckfortsatz 10 vollständig in den Steckverbinder eingesteckt ist; dieser Bereich ist in Figur 10 mit B angedeutet.The mating ends 28 of the contacts 26, 27 are in suitable receptacles 42 of the second body 18. Below the plug ends 28 a plurality of air pockets 44 are provided in the exceptions 42 (see in particular the FIGS. 7 and 10 ). The air pockets serve on the one hand for impedance matching. On the other hand, they are advantageous for the correctly aligned, planar arrangement of the plug-in ends 28 in the receptacles 42; it is easier to partially support the plug-in ends 28 than to have to create a continuous, flat bearing surface. In the contacts which start at the first level I, the pockets 44 may be arranged in front of the area in which the spring contacts of the connector abut against the contacts when the printed circuit board push-in extension 10 is fully inserted into the connector; this area is in FIG. 10 indicated by B.

In Figur 11 sind die Kontakte 26, 27 zu sehen. In dieser Figur ist gut zu erkennen, daß jeder Kontakt 26, 27 zwei Rasthaken 46 aufweist, der an entgegengesetzten Seiten des Übergangsabschnitts 30 ausgebildet ist. Diese Rasthaken sind auch in den Figuren 12 und 13 zu sehen. Wie besonders gut in Figur 13 zu sehen ist, sind die Rasthaken 46 von nebeneinanderliegenden Kontakten einer Gruppe auf unterschiedlichen Niveaus angeordnet. Die unterschiedlich hohe Anordnung der Rasthaken hat zum einen den Vorteil, daß sich höhere Verankerungskräfte im Körper des Leiterplatten-Steckfortsatzes 10 ergeben. Es steht für die Übertragung der Haltekräfte mehr Material zur Verfügung, wenn nicht auf derselben Höhe der Rasthaken des benachbarten Kontakts zurückgehalten werden muß. Zum anderen ergeben sich hinsichtlich der Abschirmung bessere Werte, da der minimale Abstand zwischen den Rasthaken größer ist, wenn diese auf unterschiedlichen Niveaus angeordnet sind. Weiterhin ist zu bemerken, daß die Kontakte in den Übergangsabschnitten mit verringerter Breite ausgeführt sind. Dies ist gut in den Figuren 12 und 13 zu erkennen. Dies ermöglicht, die Rasthaken aus der Materialbreite des Kontaktes auszustanzen, ohne hier eine vergrößerte Materialbreite ansetzen zu müssen. Durch diese Maßnahme wird der Abstand zwischen den Rasthaken benachbarter Kontakte noch weiter vergrößert, was zusätzliche Vorteile hinsichtlich Haltekraft und Abschirmung bringt.In FIG. 11 the contacts 26, 27 can be seen. In this figure, it can be clearly seen that each contact 26, 27 has two latching hooks 46 formed on opposite sides of the transition section 30. These snap hooks are also in the FIGS. 12 and 13 to see. How very good in FIG. 13 can be seen, the latching hooks 46 are arranged by adjacent contacts of a group at different levels. The different height arrangement of the latching hooks on the one hand has the advantage that higher anchoring forces in the body of the printed circuit board plug-in extension 10th result. It is available for the transfer of holding forces more material available, if not at the same height the latching hook of the adjacent contact must be retained. On the other hand, there are better values in terms of shielding, since the minimum distance between the latching hooks is greater if they are arranged at different levels. Furthermore, it should be noted that the contacts are made in the transition sections with reduced width. This is good in the FIGS. 12 and 13 to recognize. This makes it possible to punch out the latching hooks from the material width of the contact, without having to start with an increased material width. By this measure, the distance between the latching hook adjacent contacts is further increased, which brings additional advantages in terms of holding power and shielding.

Zusätzlich zu den Rasthaken 46 am Übergangsabschnitt weisen die Kontakte 27 der zweiten Gruppe nach jeweils zwei Rasthaken 48 auf entgegengesetzten Seiten des Anschlußendes 32 auf.In addition to the latching hooks 46 on the transition section, the contacts 27 of the second group have two latching hooks 48 on opposite sides of the connection end 32, respectively.

Die Befestigung der Kontakte 26, 27 an den Teilbereichen 16, 18 des Leiterplatten-Steckfortsatzes 10 erfolgt im wesentlichen mittels einer Nut 50, die am Übergang vom ersten Teilbereich 16 zum zweiten Teilbereich 18 auf der Seite des Anschlußbereichs 12 gebildet ist (siehe insbesondere die Figuren 6, 14 und 15). In den Nuten 50 werden die Übergangsabschnitte 30 der Kontakte 26 der ersten Gruppe und der Kontakte 27 der zweiten Gruppe aufgenommen. Im Querschnitt betrachtet hat die Nut 50 eine Trapezform, die in Figur 16 eingezeichnet ist. Aufgrund der Trapezform verengt sich die Nut zur Außenseite hin, so daß der Übergangsabschnitt 30 der Kontakte 26, 27 zum Teilbereich 16 bzw. 18 hin gehalten ist.The attachment of the contacts 26, 27 at the portions 16, 18 of the printed circuit board insertion extension 10 is effected substantially by means of a groove 50 which is formed at the transition from the first portion 16 to the second portion 18 on the side of the terminal portion 12 (see in particular FIGS. 6 . 14 and 15 ). In the grooves 50, the transition portions 30 of the contacts 26 of the first group and the contacts 27 of the second group are accommodated. Viewed in cross section, the groove 50 has a trapezoidal shape, which in FIG. 16 is drawn. Due to the trapezoidal shape, the groove narrows towards the outside, so that the transition section 30 of the contacts 26, 27 is held towards the partial region 16 or 18.

Auf ihrer Oberseite, von der aus die Übergangsabschnitte in die Nut eingesetzt werden, weist jede Nut 50 einen Einführabschnitt 52 auf, der als konkave Rinne ausgeführt ist. Der Boden der Rinne liegt jeweils seitlich neben der Nut 50 und hat seinen tiefsten Punkt etwa an der Stelle, an welcher der Übergangsabschnitt 30 sich nach dem Einsetzen befinden soll. Wenn die Kontakte mit ihren Übergangsabschnitten in die Nuten 50 eingesetzt werden, werden die Übergangsabschnitte und insbesondere die Rasthaken 46 von den Einführabschnitten 52 in die korrekte Position geführt. Die Kontakte werden dann soweit eingepreßt, daß die Rasthaken 46 sich in das Material des entsprechenden Teilbereichs 16, 18 eingraben und dort die Übergangsabschnitte verankern. Gleichzeitig müssen die Anschlußenden 32 der Kontakte 27 der zweiten Gruppe so eingepreßt werden, daß sich die zusätzlichen Rasthaken 48 (siehe Figur 17) in das Material des ersten Teilbereichs 16 eingraben.On its upper side, from which the transition sections are inserted into the groove, each groove 50 has an insertion section 52, which is designed as a concave groove. The bottom of the channel is located laterally next to the groove 50 and has its lowest point approximately at the point at which the transition section 30 should be located after insertion. When the contacts are inserted with their transitional sections in the grooves 50, the transition sections and in particular the latching hooks 46 are guided by the insertion sections 52 in the correct position. The contacts are then pressed in so far that the latching hook 46 dig into the material of the corresponding portion 16, 18 and anchor there the transition sections. At the same time, the Terminal ends 32 of the contacts 27 of the second group are pressed so that the additional latching hooks 48 (see FIG. 17 ) dig into the material of the first portion 16.

Zum Zwecke der korrekten Positionierung der Steckenden 28 der Kontakte 26, 27 sind diese so ausgeführt, daß der Winkel α (siehe Figur 6) zwischen den Steckenden 28 und den Übergangsabschnitten 30 bei den Kontakten 27 der zweiten Gruppe geringfügig größer als 90° ist, während der Winkel β zwischen den Steckenden 28 und den Übergangsabschnitten 30 der Kontakte 26 der ersten Gruppe geringfügig kleiner als 90° ist. Wenn dann die Übergangsabschnitte 30 in der Richtung der Pfeile P von Figur 6 eingepreßt werden, wird der Winkel β auf 90° aufgebogen, während der Winkel α auf 90° gestaucht wird. In beiden Fällen werden die Steckenden 28 elastisch in die für sie vorgesehenen Aufnahmen 42 im ersten Körper 18 beaufschlagt, wo sie ohne weitere Maßnahmen verbleiben.For the purpose of correct positioning of the mating ends 28 of the contacts 26, 27, these are designed so that the angle α (see FIG. 6 ) between the mating ends 28 and the transition sections 30 at the contacts 27 of the second group is slightly greater than 90 °, while the angle β between the mating ends 28 and the transition sections 30 of the contacts 26 of the first group is slightly smaller than 90 °. Then, when the transition portions 30 in the direction of the arrows P of FIG. 6 be pressed, the angle β is bent to 90 °, while the angle α is compressed to 90 °. In both cases, the mating ends 28 are resiliently acted upon in the receptacle 42 provided for them in the first body 18, where they remain without further action.

Mit der gezeigten Anordnung der Kontakte 26, 27 kann insbesondere eine sehr enge Anordnung der Kontakte erzielt werden. Bei einer gebräuchlichen Ausführungsvariante sind die Kontakte in einer Schrittweite von 0,75 mm angeordnet. Hieraus ist erkennbar, wie wenig Platz zwischen den Kontakten für deren Verankerung zur Verfügung steht.With the arrangement of the contacts 26, 27 shown, in particular, a very close arrangement of the contacts can be achieved. In a conventional embodiment, the contacts are arranged in a pitch of 0.75 mm. From this it can be seen how little space between the contacts is available for anchoring them.

Der mit den Kontakten 26, 27 bestückte Leiterplatten-Steckfortsatz 10 kann auf den Rand einer Leiterplatte 60 (siehe die Figuren 18 und 19) aufgesetzt werden, wobei die Anschlußenden 32 der Kontakte 26, 27 mit entsprechenden Leiterbahnen der Leiterplatte 60 verbunden werden. Die Anschlußenden 32 können dabei entweder aufgelötet, eingelötet oder auch eingepreßt werden. Die zusätzlichen Rasthaken 48 der Kontakte 27 der zweiten Gruppe gewährleisten dabei, daß die Anschlußenden 32 dieser Kontakte nicht aus dem ersten Teilbereich 16 herausgedrückt werden; die Anschlußenden 32 der Kontakte 26 stützen sich ohne weitere Maßnahmen zuverlässig am ersten Teilbereich 16 ab. Zur Positionierung des Leiterplatten-Steckfortsatzes 10 an der Leiterplatte 60 ist diese mit geeigneten Bohrungen versehen, in welche die Positionierungsvorspünge 22 eingreifen können. Die Leiterplatte 60 kann dann mit dem Leiterplatten-Steckfortsatz 10 in einen Kartenrand-Steckverbinder 70 eingesteckt werden, der hier auf einer weiteren Leiterplatte 72 angeordnet ist, beispielsweise einer Backplane. Die Verwendung des Leiterplatten-Steckfortsatzes 10 hat den besonderen Vorteil, daß dessen Steckbereich 14 mit sehr viel höherer Genauigkeit ausgeführt werden kann als der Randbereich einer Leiterplatte. Somit können die Kontaktkräfte, die beim Einstecken des Leiterplatten-Steckfortsatzes 10 in den Kartenrand-Steckverbinder 70 auftreten, sehr viel besser kontrolliert werden.The printed circuit board plug-in extension 10 equipped with the contacts 26, 27 can be placed on the edge of a printed circuit board 60 (see FIGS FIGS. 18 and 19 ), wherein the terminal ends 32 of the contacts 26, 27 are connected to corresponding tracks of the circuit board 60. The terminal ends 32 can either be soldered, soldered or pressed. The additional latching hooks 48 of the contacts 27 of the second group ensure that the terminal ends 32 of these contacts are not pushed out of the first portion 16; the terminal ends 32 of the contacts 26 are supported without further measures reliably on the first portion 16 from. For positioning of the printed circuit board push-in extension 10 on the printed circuit board 60, this is provided with suitable holes into which the positioning projections 22 can engage. The printed circuit board 60 can then be plugged with the PCB plug-in extension 10 in a card edge connector 70, which is arranged here on another circuit board 72, for example, a backplane. The use of the printed circuit board push-in extension 10 has the particular advantage that its plug-in region 14 can be designed with much higher accuracy than the edge region of a printed circuit board. Consequently For example, the contact forces that occur when inserting the board tab extension 10 into the card edge connector 70 can be much better controlled.

In Figur 20 ist eine Baugruppe gezeigt, die hier aus vier miteinander verbundenen Leiterplatten 60 besteht. Zum Verbinden der Leiterplatten werden zwischen den Leiterplatten-Steckfortsätzen jeweils Distanzhalter 80 (siehe insbesondere Figur 24) verwendet, die auf entgegengesetzten Seiten jeweils zwei Haltezapfen 82 aufweisen. Mittig durch jeden Distanzhalter 80 erstreckt sich eine Positionierungsöffnung 84. Die Position der Haltezapfen 82 und der Positionierungsöffnung 84 entspricht der Anordnung der Öffnungen 24 am Leiterplatten-Steckfortsatz 10.In FIG. 20 an assembly is shown, which consists of four interconnected circuit boards 60 here. For connecting the circuit boards between the PCB slot extensions each spacer 80 (see, in particular FIG. 24 ), which have two retaining pins 82 on opposite sides. A positioning opening 84 extends centrally through each spacer 80. The position of the retaining pins 82 and the positioning opening 84 corresponds to the arrangement of the openings 24 on the printed circuit board push-in extension 10.

Zum Zusammenfügen der Leiterplatten 60 zu einer Baugruppe werden die Haltezapfen 82 der Distanzhalter 80 in die außenliegenden Öffnungen 24 der an den Leiterplatten 60 angeordneten Leiterplatten-Steckfortsätze 60 eingesteckt. Dann wird ein Passstift 86 (siehe 23) durch die Positionierungsöffnung 84 der Distanzhalter 80 sowie durch die mittlere Öffnung 24 der Leiterplatten-Steckfortsätze 10 geschoben. Auf diese Weise werden alle Bauteile relativ zueinander präzise ausgerichtet, so daß die Baugruppe aus den mehreren Leiterplatten 60 in eng nebeneinanderliegende Kartenrand-Steckverbinder 70 eingeschoben werden kann, die auf einer weiteren Leiterplatte 72, beispielsweise einer Backplane, angeordnet sind.To assemble the printed circuit boards 60 into an assembly, the retaining pins 82 of the spacers 80 are inserted into the outer openings 24 of the printed circuit board tab extensions 60 arranged on the printed circuit boards 60. Then, a dowel pin 86 (see FIG. 23) is pushed through the positioning hole 84 of the spacers 80 and through the center hole 24 of the board tab extensions 10. In this way, all components are precisely aligned relative to each other, so that the assembly of the plurality of printed circuit boards 60 can be inserted into closely adjacent card edge connector 70, which are arranged on another circuit board 72, for example, a backplane.

Die präzise Positionierung der Leiterplatten-Steckfortsätze 10 an den Leiterplatten 60 sowie ihre präzise Ausrichtung untereinander über die Distanzhalter 80 ist besonders wichtig, da einige der Leiterplatten 60 meist in einer (nicht dargestellten) Führung so geführt werden, daß sie korrekt in die Kartenrand-Steckverbinder 70 eingeschoben werden können. Wenn einige der Leiterplatten-Steckfortsätze 10 nicht korrekt positioniert sind, führt dies zu Ausrichtungsfehlern. Beispielsweise könnten die Leiterplatten 60 fächerartig gegeneinander verdreht sein. In diesem Fall ist es kaum möglich, die Leiterplatten mittels der vorgesehenen Führungen korrekt so zu führen, daß die Leiterplatten-Steckfortsätze 10 in die ihnen zugeordneten Steckverbinder treffen.The precise positioning of the PCB tab extensions 10 on the circuit boards 60 as well as their precise alignment with each other via the spacers 80 is particularly important because some of the circuit boards 60 are usually guided in a (not shown) guide so that they correctly into the card edge connector 70 can be inserted. If some of the PCB tab extensions 10 are not positioned correctly, alignment errors will result. For example, the circuit boards 60 could be fan-shaped rotated against each other. In this case, it is hardly possible to correctly guide the circuit boards by means of the guides provided so that the printed circuit board tab extensions 10 meet in their associated connector.

Um eine präzise Positionierung der Leiterplatten-Steckfortsätze 10 hinsichtlich ihres Abstandes untereinander zu gewährleisten, ist vorgesehen, die Haltezapfen 82 mit einer solchen Länge auszuführen, daß sie unmittelbar aneinander anstoßen, wenn der eigentlich zwischen ihnen angeordnete Teilbereich 16 eine zu geringe Dicke hat. Auf diese Weise kann verhindert werden, daß die Distanzhalter 80 in einem zu geringen Abstand voneinander angeordnet werden können, was wiederum zu einem zu geringen Abstand zwischen den einzelnen Leiterplatten-Steckfortsätzen 10 führen würde.In order to ensure a precise positioning of the printed circuit board insertion extensions 10 with respect to their distance from each other, it is provided to carry the retaining pins 82 with such a length that they abut each other directly when the actually arranged between them portion 16 has a too small thickness. In this way it can be prevented that the spacers 80 in too small a distance from each other can be arranged, which in turn would lead to a too small distance between the individual PCB plug-in extensions 10.

In Figur 25 ist eine alternative Ausgestaltung gezeigt, bei der die Distanzhalter 80' einstückig an die Steckfortsätze 10 angeformt sind. Jeder Distanzhalter 80 ist dabei mit einen Haltezapfen 82 und zwei Positionierungsöffnungen 84 versehen. Diese einstückige Ausgestaltung verringert den Herstellungs- und Montageaufwand und auch die auftretenden Toleranzen.In FIG. 25 an alternative embodiment is shown, in which the spacers 80 'are integrally formed on the plug-in extensions 10. Each spacer 80 is provided with a retaining pin 82 and two positioning holes 84. This one-piece design reduces the manufacturing and assembly costs and also the tolerances occurring.

In den Figuren 26 bis 29 ist ein Steckfortsatz gemäß einer alternativen Ausgestaltung gezeigt, der sich von dem in den Figuren 1 bis 5 gezeigten Steckfortsatz dadurch unterscheidet, daß auf die seitlichen Einschnürungen verzichtet wurde. Es ist daher nicht nötig, die Kontakte nach innen ausweichen zu lassen. Statt dessen können alle Kontakte geradlinig ausgeführt werden.In the FIGS. 26 to 29 is shown a plug-in extension according to an alternative embodiment, which differs from that in the FIGS. 1 to 5 shown insertion extension differs in that was dispensed with the lateral constrictions. It is therefore not necessary to let the contacts dodge inwards. Instead, all contacts can be made straightforward.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

10:10:
Leiterplatten-SteckfortsatzPCB plug extension
12:12:
Anschlußbereichterminal region
14:14:
Steckbereichplug-in region
16:16:
erster Teilbereichfirst subarea
18:18:
zweiter Teilbereichsecond subarea
20:20:
Einschnürungconstriction
22:22:
Positionierungsvorsprungpositioning projection
24:24:
Öffnungopening
26:26:
Kontakte der ersten GruppeContacts of the first group
27:27:
Kontakte der zweiten GruppeContacts of the second group
28:28:
Steckendeplug-in end
30:30:
ÜbergangsabschnittTransition section
32:32:
Anschlußendeterminal end
34:34:
Fasechamfer
36:36:
Einschnittincision
38:38:
Trennwandpartition wall
40:40:
Einführfasechamfer
42:42:
Aussparungrecess
44:44:
Lufttascheair pocket
46:46:
Rasthakenlatch hook
48:48:
zusätzlicher Rasthakenadditional latching hook
50:50:
Nutgroove
52:52:
Einführabschnittinsertion
60:60:
Leiterplattecircuit board
70:70:
Kartenrand-SteckverbinderCard Edge Connector
72:72:
weitere Leiterplattefurther printed circuit board
80:80:
Distanzhalterspacer
82:82:
Haltezapfenretaining pins
84:84:
Positionierungsöffnungpositioning opening
86:86:
Passstiftdowel

Claims (26)

  1. A circuit board connector extension (10) comprising a body (16, 18) made of plastic and adapted to be attached to a circuit board, having first and second groups of contacts (26, 27) which each have one connecting end (32) for contacting conductor tracks on the circuit board and one plug-in end (28) for contacting contacts of a connector piece, the body consisting of two sections (16, 18) and having a stepped shape, the two sections (16, 18) being integrally formed with each other, the connecting ends (32) of the two groups of contacts (26, 27) being arranged on one and the same side of the body (16, 18), whereas the plug-in ends (28) of the first group are arranged on a side of the body (16, 18) different from that where the plug-in ends (28) of the second group are arranged, and the contacts (26, 27) being guided from the first section (16) to the second section (18) by means of a transition portion (30) which is bent approximately at right angles, characterized in that the contacts (26) of the first group always remain on the same side of the body (16, 18), whereas the contacts (27) of the second group traverse the section (16) once.
  2. The circuit board connector extension according to claim 1, characterized in that the body (16, 18) has at least one positioning protrusion (22), preferably a cylindrical pin (22), which for positioning the connector extension (10) can be inserted in a mount of the circuit board with an interlocking fit.
  3. The circuit board connector extension according to any of the preceding claims, characterized in that the body (16, 18) laterally has two constrictions (20) serving for locking in place in a connector piece.
  4. The circuit board connector extension according to any of the preceding claims, characterized in that between the contacts (26, 27) of one group, the body (16, 18) is provided with punched openings (56) which allow the contacts to be blanked.
  5. The circuit board connector extension according to any of the preceding claims, characterized in that the contacts (27) of the second group extend through the body (16, 18).
  6. The circuit board connector extension according to any of the preceding claims, characterized in that the plug-in ends (28) of the contacts end at different levels, in particular at four different levels (I, II, III, IV).
  7. The circuit board connector extension according to claim 6, characterized in that the body (16, 18), as seen in the plug-in direction, has a chamfer (34) in front of each plug-in end (28).
  8. The circuit board connector extension according to either of claims 6 and 7, characterized in that incisions (36) are provided in front of those plug-in ends (28) which end at a level which is situated further to the rear as seen in the plug-in direction.
  9. The circuit board connector extension according to claim 8, characterized in that the incisions (36) are provided with oblique insertion chamfers (40).
  10. The circuit board connector extension according to any of the preceding claims, characterized in that air pockets (44) are provided between the contacts (26, 27) and the body (16, 18).
  11. The circuit board connector extension according to claim 10, characterized in that the contacts (26, 27) are supported by the body (16, 18) in the area B of making contact with the connector piece.
  12. The circuit board connector extension according to claim 11, characterized in that below the plug-in ends (28) which, as seen in the plug-in direction, end at the foremost level, a further air pocket (44) is provided yet in front of the areas of the contact zone which are supported by the connector piece.
  13. The circuit board connector extension according to claim 12, characterized in that the transition portion (30) is guided in a groove (50).
  14. The circuit board connector extension according to claim 13, characterized in that the groove (50) is provided with an insertion portion (52).
  15. The circuit board connector extension according to claim 14, characterized in that the insertion portion (52), as viewed in the direction of inserting the contacts (26, 27), has a concave shape, in particular in the nature of a semi-circular chute.
  16. The circuit board connector extension according to any of claims 13 to 15, characterized in that the groove (50) has a trapezoidal cross-section as viewed perpendicular to the direction of inserting the contacts (26, 27).
  17. The circuit board connector extension according to any of claims 13 to 16, characterized in that the groove (50) guides the transition portion (30).
  18. The circuit board connector extension according to any of claims 13 to 17, characterized in that the transition portion is fixed in the groove (50) by means of at least one latching hook (46).
  19. The circuit board connector extension according to claim 18, characterized in that the latching hooks (46) of neighboring transition portions are at different levels.
  20. The circuit board connector extension according to claim 18 or claim 19, characterized in that the transition portion (30) is configured so as to have a reduced width and the contact at the level of the latching hooks (46) has approximately the remaining width.
  21. The circuit board connector extension according to any of claims 17 to 20, characterized in that for the first group of contacts (26) the angle (β) between the transition portion (30) and the plug-in end (28) is slightly smaller than 90°, so that the plug-in end (28), during pressing the contact (26) into the body (16, 18), is clamped against the latter.
  22. The circuit board connector extension according to any of claims 17 to 21, characterized in that for the second group of contacts (27) the angle (α) between the transition portion (30) and the plug-in end (28) is slightly larger than 90°, so that the plug-in end (28), during pressing the contact (27) into the body (16, 18), is clamped against the latter.
  23. The circuit board connector extension according to any of the preceding claims, characterized in that the contacts (27) of the second group are provided at the connecting end with at least one latching hook (48) which can be pressed into the body (16, 18).
  24. The circuit board connector extension according to any of the preceding claims, characterized in that the contacts (26) of the first group have the connecting ends (32) of the ground contacts (M) lying at one level, the connecting ends (32) of the signal contacts are arranged behind this level as seen from the plug-in ends, the connecting ends of the ground contacts (M) of the contacts (27) of the second group lie behind the connecting ends of the signal contacts, and the connecting ends of the signal contacts of the second group lie behind these.
  25. An assembly comprising two or more connector extensions according to any of the preceding claims, characterized in that spacers (80) are arranged between the connector extensions so as to be arranged on the sides of the connector extensions (10), and one locating pin (86) each extends through the spacers (80) and the lateral areas of the connector extensions.
  26. The assembly according to claim 25, characterized in that the spacers (80) are integrally formed with the circuit board connector extensions (10).
EP07003208.1A 2006-02-21 2007-02-15 PCB plug-in extension Active EP1821369B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006008015A DE102006008015B3 (en) 2006-02-21 2006-02-21 Circuit board plug set and group has plastic body by the board having two contact groups with contacts to the board on the same side of the body and plug ends on mutually opposite sides

Publications (3)

Publication Number Publication Date
EP1821369A2 EP1821369A2 (en) 2007-08-22
EP1821369A3 EP1821369A3 (en) 2008-07-16
EP1821369B1 true EP1821369B1 (en) 2014-05-21

Family

ID=37887306

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07003208.1A Active EP1821369B1 (en) 2006-02-21 2007-02-15 PCB plug-in extension

Country Status (6)

Country Link
US (1) US7645146B2 (en)
EP (1) EP1821369B1 (en)
JP (1) JP4589350B2 (en)
CN (1) CN100570957C (en)
CA (1) CA2577574C (en)
DE (1) DE102006008015B3 (en)

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Also Published As

Publication number Publication date
CA2577574A1 (en) 2007-08-21
CN100570957C (en) 2009-12-16
JP4589350B2 (en) 2010-12-01
DE102006008015B3 (en) 2007-04-12
JP2007227379A (en) 2007-09-06
CN101026271A (en) 2007-08-29
US7645146B2 (en) 2010-01-12
EP1821369A3 (en) 2008-07-16
US20070197088A1 (en) 2007-08-23
EP1821369A2 (en) 2007-08-22
CA2577574C (en) 2009-10-13

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