DE102012103203B4 - Electrical connector, in particular for plugging onto printed circuit boards, with a separate contact carrier plate, as well as housing and method - Google Patents

Abstract

Electrical connector (1), in particular for plugging onto printed circuit boards, with contact pins (6, 6a, 6b) and a housing (2) which has a base (3), at least some of the contact pins (6, 6a, 6b) being located extends both through the base (3) and through at least one separate contact carrier plate (14) configured to be attachable to the housing (2), the contact pins (6, 6a, 6b) having stops (10) which are attached to the contact carrier plate (14) abut, characterized in that contact receptacles (9, 9b) through which the contact pins (6, 6a, 6b) extend in the base (3), in a section (28) facing the contact carrier plate (14) has a larger cross section transversely to the longitudinal extent (L) of the contact pins (6, 6a, 6b) than in a section (29) of the contact receptacle (9, 9b) facing away from the contact carrier plate (14).

Description

The invention relates to an electrical connector, in particular for plugging onto printed circuit boards, with contact pins and a housing which has a base, at least some of the contact pins extending both through the base and through at least one separate contact carrier plate designed to be attached to the housing, with the contact pins have stops that rest against the contact carrier plate.

Such connectors are known. The bottom of the housing usually separates two areas of the housing, each of which is used for plugging together with connectors and / or printed circuit boards. For example, one side of the connector with respect to the bottom can be designed to be connected to a printed circuit board, while the other side is used for plugging together with a mating connector. In such a case, the mating connector is connected to the circuit board via the connector.

The contact pins are adapted to the respective function. For plugging into printed circuit boards, pin geometries standardized at the factory are often used, which are laterally elastically compressed when inserted into the printed circuit board and are then held in the printed circuit board with a friction fit. For connection to a mating connector, the contact pins can be designed in the shape of a pin or socket at at least one end. Here, too, the contact pins have standardized geometries. Alternatively, the two areas separated from one another by the base can also be designed for connection with a mating connector.

In the case of connectors through which a large number of data streams are routed, many contact pins are often required, which are arranged in a high contact density to save space. In areas of high contact density, the contact pins can be spaced significantly less than 1 mm apart. In many fields of technology, for example in data transmission in vehicles, not only data streams, but also switching signals and power supplies are conducted via the connectors. The latter usually require larger contact pins, so that a plug can often have different contact pins.

With a high contact density and small, filigree contact pins with cross-sectional dimensions in the range of half a millimeter, the connectors are difficult and complex to assemble. If a connector also has areas with differently high contact densities and / or differently sized contact pins, fitting the connector is even more complicated.

From the DE 10 2007 018 762 A1 an electrical connector is known that can be plugged onto a circuit board. the DE 10 2007 060 429 A1 shows an electronic module with which two circuit carriers lying one above the other can be contacted. In the US 2004/0 235 361 A1 a protective spacer for a connector is shown. In the U.S. 5,139,446 A an adapter arranged on two sides of a circuit board is shown. In the IBM Technical Disclosure Bulletin, International Business Machine Corp., US, vol. 36, no.4 of April 4, 1993, pages 421-423, XP000364567, ISSN: 0018-8689 a plurality of pins is held in a carrier, each pin having a transversely deflectable spring section which is designed to be plugged into a printed circuit board. In the US 2012/0 052 696 A1 shows an electrical arrangement with a connector housing, pins, a PCB and a flat intermediate element arranged between the connector housing and the PCB, the intermediate element isolating the pins from one another and preventing arcing.

The present invention is therefore based on the object of improving a connector of the type mentioned at the outset in such a way that the fitting with contact pins is simplified even with high contact densities and / or areas of different contact densities and / or differently sized contact pins.

This object is achieved according to the invention for the connector mentioned at the outset in that the contact receptacles through which the contact pins extend in the bottom of the housing have a larger cross-section in a section facing the contact carrier plate transversely to the longitudinal extension of the contact pins than in a section facing away from the contact carrier plate the establishment of contact.

The contact carrier plate offers the advantage that it can be pre-equipped with contact pins separately from the housing or the other areas of the base. Due to its simpler geometry, the contact carrier plate is also significantly easier to equip compared to the housing of the plug connector, so that the manufacturing effort is considerably reduced.

In the case of filigree contact pins, the material thickness through which they can be plugged into the connector without kinking is limited. In the solution according to the invention, the risk of kinking is reduced because the total material thickness through which the contact pins extend is divided between the material thickness of the contact carrier plate and the material thickness of the remaining base. In particular, when the contact pins are pre-assembled on the contact carrier plate, there is less To overcome material thickness than with an installation directly in the ground.

The stops are used, on the one hand, to set the end position when the contact pins are assembled. On the other hand, the plug-in force required to plug the connector together is transmitted from the contact pin to the contact carrier plate or from the contact carrier plate to the contact pin through the stop.

The basic idea of the invention can be further improved by the following embodiments and developments which are advantageous in themselves and which can be combined with one another as desired.

It is therefore advantageous if the contact carrier plate is made of a harder material than the housing. The hardness of the material can easily be determined using the Shore method (Shore hardness) or other standardized hardness measurement methods. Particularly in the case of small contact pins, due to the small dimensions, very high surface pressures can occur during assembly, which can quickly lead to plastic deformation of the housing material and to a displacement of the contact pins. Such plastic deformation can take place, for example, in the area of stops that are intended to limit the insertion of the contact pins into the connector. If such a plastic deformation occurs, the specified tolerances can often no longer be adhered to. If a harder material is used for the contact carrier plate, plastic deformation can be avoided, which would otherwise occur when using a softer housing material.

A harder contact carrier plate also offers a further advantage when the connector is inserted into a printed circuit board or a mating connector, for example. In such a mating process, high mating forces are often exerted on the individual contact pins. The insertion forces must be absorbed by the contact plate without plastic deformation occurring at the points where the insertion force is passed from the contact pin into the contact carrier plate.

In order to use the contact carrier plate as advantageously as possible as a pressure plate for the contact pins when the connector is plugged together, the force flow of an insertion force required when the connector is mated with a circuit board and / or a mating connector can be passed from the housing via the contact carrier plate to the plug contacts. In this way, the contact pins reaching through the contact carrier plate can be supported in at least one direction during a plugging process. In particular, the contact carrier plate can be arranged between a stop of a contact pin and the floor.

The at least one contact carrier plate and the housing can be made of plastic. In particular, the contact carrier plate can be made of fiber-reinforced, in particular carbon, but preferably glass fiber-reinforced plastic.

According to a further advantageous embodiment, it is provided that the contact pins reaching through both the contact carrier plate and the base are fastened in the contact carrier plate. Retaining elements of these contact pins, which fix the contact pins in their longitudinal direction, can only be in engagement with the contact receptacles in the area of the contact carrier plate in this embodiment. In the base, the contact pins penetrating the contact carrier plate can preferably only be fixed transversely to the plug-in direction. The fixation in the plug-in direction or the longitudinal direction of the contact pins, on the other hand, is preferably carried out exclusively in the contact carrier plate.

It is not necessary to fix the contact pin in the longitudinal direction in the area of the floor if the contact pins are already fixed in their longitudinal direction by the contact carrier plate. Then, in addition, the contact carrier plate with the contact pins preassembled thereon can be mounted more easily because the contact pins can be pushed through the contact receptacles in the ground with less force.

In one embodiment, the contact pins in the contact carrier plate can have sockets extending into the contact carrier plate on one side. The preferably harder contact carrier plate in this case prevents the sockets from being able to drill deeper into the material of the contact carrier plate and plastically deform the contact carrier plate when they are plugged together with complementary pins. However, the contact pins can also protrude from the contact carrier plate on one or both sides. All shapes can be provided at the same time on a contact carrier plate.

The stops can be designed in the form of a stepped or conical or a curved, widening shoulder. In order to accommodate such a stop and to support it as completely as possible, the contact receptacle assigned to the contact pin can be configured to be complementary to the stop, in particular widened, at the location of the stop.

The stops can be arranged on the side facing away from the floor or on the side of the contact carrier plate facing the floor.

If the electrical plug connector is designed to be plugged onto a printed circuit board on one side, greater insertion forces can occur when the plug connector is plugged onto the printed circuit board than when it is plugged together with a mating connector. In order to absorb these higher insertion forces, it is advantageous if the stops are arranged on the side of the contact carrier plate facing the printed circuit board. Furthermore, the contact carrier plate can be arranged on the side of the base facing the printed circuit board. Independently of one another, these arrangements mean that when the plug connector and printed circuit board are plugged together, the contact pins are supported with their stop on the contact carrier plate and not on the floor. This arrangement can of course also be advantageous if, instead of the printed circuit board, a mating connector is to be attached to one side of the connector, which requires a higher insertion force than a second mating connector to be attached to the other side of the connector.

In order to absorb the insertion forces occurring in at least one direction when plugging together, the contact carrier plate can be supported by the housing against a movement directed along the longitudinal direction of the contact pins. The support can take place, for example, on the ground. Alternatively or additionally, the contact carrier plate can also be held and / or supported by form-fitting elements such as clips, notches, bolts or toggles. In addition to or instead of a form-fitting connection between the housing and contact carrier plate, a frictional connection is also possible, for example, by pressing in or pressing the contact carrier plate in the housing. The attachment of the contact carrier plate by form fit and / or friction fit is preferable to other means, such as welding, screwing or pinning, for reasons of cost.

The section with the smaller cross section is intended to support the contact pin in the transverse direction so that it cannot move sideways when it is plugged together. The area with the larger cross section reduces the friction when the contact pin is pushed into the area of the contact receptacle on the bottom side. In the area of the floor facing the contact carrier plate, the contact pin is preferably spaced from the floor. At the end facing away from the contact carrier plate, the contact receptacle preferably rests on the contact pin.

It has proven to be advantageous if the section of the contact receptacle with the smaller cross section extends over a length which corresponds at most to the material thickness of the contact carrier plate. The length of this section is preferably at most three times the largest diameter of the contact pins at the point of the small cross section. This length is sufficient to support the contact pins in the transverse direction without causing excessive friction when inserting the contact pins.

Due to the inventive division of the total material thickness, through which at least some of the contact pins protrude into the connector, in two sub-areas, namely an area extending through the contact carrier plate and an area extending through the base, long contact receptacles and a large spacing can be achieved even with filigree contact pins realize between the two sides of the connector. In one embodiment, the base can have a greater material thickness than the contact carrier plate. The material thickness of the base can in particular be more than twice the material thickness of the contact carrier plate, at least in the area overlapped by the contact carrier plate. The spacing of the contact pins from one another can be less than a tenth, even less than a twentieth of the total thickness of the base due to the division into contact carrier plate and base.

The base can be formed in one piece with the housing or it can be a separate element.

To receive the contact carrier plate, the housing and / or the base can have a receptacle, for example in the form of a pocket or recess. The recess can be surrounded by a raised edge or a collar. The contact carrier plate can be aligned with the edge and / or a bottom surface of the housing.

The contact carrier plate can form a bottom mounting surface of the connector. The mounting surface on the bottom serves as a stop and contact surface that limits the depth of insertion of the connector when it is plugged together with a circuit board, for example.

In the area overlapped by the contact carrier plate, the base of the housing can have a material thickness that is reduced in comparison to at least a part of the non-overlapped area. In the areas of the floor where the material thickness is not reduced, there can also be electrical contacts that extend through the floor.

The contact pins used in the non-overlapping area can in particular be larger than the contact pins of the contact carrier plate. Larger contact pins can also be inserted through a greater material thickness due to their greater inherent stability compared to more filigree contact pins. The distribution of the total material thickness to the material thicknesses of the contact carrier plate and base is consequently no longer absolutely necessary for larger contact pins. Are contact pins with Different sized cross-sections are provided, according to a further independent and advantageous embodiment, at least a part, preferably the predominant part, of the contact pins, but preferably all contact pins, with the smallest cross-sections through the contact carrier plate and at least a part, preferably the predominant part, of the contact pins , but preferably all contact pins, do not extend with the largest cross section through the contact carrier plate.

According to a further advantageous embodiment, at least a part, preferably all, of the contact pins extending both through the base and through the contact carrier plate can be arranged at least in some areas in a narrower grid or a higher contact density than at least some, preferably all, which are not through the contact carrier plate extending contact pins.

The invention also relates to a housing with contact pins for a plug connector in one of the configurations described above, which in particular has one or more of the features described above. Such a housing can also be traded in traffic without the associated contact carrier plate and can only be married on site to a complementary contact carrier plate, which is configured with contact pins and is preassembled on a printed circuit board.

Finally, the invention also includes a method for producing an electrical plug connector, in which contact pins are inserted into contact receptacles in a base of a housing. According to the invention, the method is characterized in that the contact pins have stops and are inserted through a contact carrier plate arranged on the floor and the floor and rest with the stops on the contact carrier plate, the contact pins extending through contact receptacles in the floor, which face in one of the contact carrier plate Section have a larger cross section transversely to the longitudinal extension of the contact pins than in a section of the contact receptacle facing away from the contact carrier plate. According to a further advantageous embodiment, the contact pins can be preassembled in the contact carrier plate.

In a further development, the contact carrier plate with the possibly preassembled contact pins can first be connected to an electrical component, for example a printed circuit board (PCB), a housing or a mating connector, and then the housing can be attached to the contact carrier plate. The connection to the electrical component can be made, for example, by attaching the contact pins. Further contact pins can be preassembled on the housing. The contact pins preassembled on the housing can lie next to the contact carrier plate, but can also be pushed through the contact carrier plate. Larger contact pins are preferably preassembled on the housing than on the contact carrier plate.

In the following, the invention is explained in more detail by way of example on the basis of embodiments with reference to the drawings. The features explained above can be added to or removed from the described embodiments if the advantage associated with this feature is not important in a particular application.

For the sake of simplicity, the same reference numerals are always used in the figures for elements that correspond in terms of function and / or configuration.

• 1 eine schematische Perspektivansicht einer Ausführungsform eines erfindungsgemäßen Steckverbinders;
• 2 einen Schnitt entlang der Ebene II-II der 1;
• 3 eine schematische Aufsicht auf eine Kontaktträgerplatte;
• 4 eine schematische Seitenansicht in teilweiser Schnittdarstellung der Kontaktträgerplatte der 3;
• 5 eine schematische Unteransicht der Kontaktträgerplatte der 3;
• 6 eine schematische Seitenansicht einer mit Kontaktstiften bestückten Kontaktträgerplatte;
• 7 eine schematische Darstellung eines Schnittes entlang der Ebene VII-VII der 6;
• 8 eine schematische Darstellung eines Gehäuses ohne Kontaktstifte und Kontaktträgerplatte der Ausführungsform der 1 in einem Schnitt entlang der Ebene II-II;
• 9 eine schematische Seitenansicht auf eine weitere Ausführungsform eines erfindungsgemäßen Steckverbinders;
• 10 eine schematische Aufsicht in Richtung des Pfeils X der 9.

Show it:

• 1 a schematic perspective view of an embodiment of a connector according to the invention;
• 2 a section along the plane II-II of 1 ;
• 3 a schematic plan view of a contact carrier plate;
• 4th a schematic side view in partial sectional view of the contact carrier plate of FIG 3 ;
• 5 a schematic bottom view of the contact carrier plate of 3 ;
• 6th a schematic side view of a contact carrier plate equipped with contact pins;
• 7th a schematic representation of a section along the plane VII-VII of 6th ;
• 8th a schematic representation of a housing without contact pins and contact carrier plate of the embodiment of FIG 1 in a section along the plane II-II;
• 9 a schematic side view of a further embodiment of a connector according to the invention;
• 10 a schematic plan view in the direction of arrow X of FIG 9 .

First of all, the structure and function of an embodiment of an electrical connector according to the invention are exemplified on the basis of FIG 1 and 2 explained.

1 shows a connector designed according to the invention 1 , its housing 2 a floor 3 has, the two connector areas 4th , 5 separates from each other. The one connector area 4th is designed merely as an example as a receptacle open on one side for a mating connector, not shown, while the other connector area 5 is exposed and is used, for example, to be plugged onto a circuit board (not shown).

Through the ground 3 range, as in particular the schematic sectional view of 2 shows contact pins 6th through. The contact pins 6th can, as shown, be of different sizes or have different sized cross-sections with approximately the same overall length. To make it easier to differentiate, the larger contact pins are identified by the reference number 6a and the smaller, more filigree contact pins with the reference number 6b Mistake.

The contact pins 6th can to fields 7th be summarized. The fields 7th can have different contact densities, i.e. numbers of contact pins per unit area. Individual fields 7a can have a high contact density at which a distance 8th between the contact pins is smaller than in one or more fields 7b with lower contact density. Usually, as in the 1 and 2 shown, the greater the contact density, the smaller the contact pins 6th are. The fields 7a The smaller contact pins can therefore achieve a higher contact density 6b exhibit. The fields 7b especially the larger contact pins 6a sum up. In the fields of high contact density, the distance 8th be well below 1 mm, in particular below 0.8 mm. Also distances 8th less than 0.5 mm are possible.

The contact pins 6th are in contact 9 added, in which they, for example, by frictional engagement in the direction of their longitudinal extension L. as well as towards Q are held transversely to the longitudinal extent. The fixation in the longitudinal direction L. can be unilaterally through stops 10 take place, the diameter of which is greater than the clear width of the associated contact 9 at the end facing the stop 11 the establishment of contact. Furthermore, the contact pins 6th Holding elements 12th have, which are in engagement with the establishment of contact 9 and a frictional and / or form fit in the longitudinal direction L. cause.

The fixation in the transverse direction Q takes place in that the contact pins 6th at least at one of the ends 11 , 13th Support the contact receptacles in the transverse direction and for this purpose at the corresponding end 11 , 13th issue.

The connector 1 is according to the invention with a separate contact carrier plate 14th provided, through which at least a part of the contact pins 6th extends. The contact pins 6th running through the contact carrier plate 14th extend also extend through the ground 3 , how 2 shows. Part of the contact 9 so is in the area 15th , in which the contact carrier plate 14th and the floor 3 overlap in one area 9a in the contact carrier plate 14th and an area 9b running through the floor 3 passes through, divided. The areas 9a and 9b cursed each other.

The contact pins 6th are preferably exclusively in the contact carrier plate 14th longitudinal L. held. In the area of the floor 3 or in part 9b the establishment of contact 9 only finds stabilization in the transverse direction Q instead of.

It is at least one contact carrier plate 14th on the connector 1 intended. The contact carrier plate preferably extends over those areas of the floor 3 on which the smaller, more filigree contact pins 6b are arranged. These areas can overlap with the fields 78a of high contact density.

Through the contact carrier plate 14th and the division of contact 9 in two aligned contacts arranged one behind the other 9a , 9b is the per component from the contact pins 6th material thickness to be penetrated is reduced, as can be seen in particular from 2 results. While the material thickness 16 outside of the overlap area 15th , in which the contact pins are preferred 6a are arranged with the largest cross-section, can be quite high, the material thickness is in the overlap area 15th on the material thickness 16a the contact carrier plate 14th and the remaining material thickness 16b of the soil 3 divided, each smaller than the material thickness 16 are outside the overlap area.

The smaller material thicknesses allow a simplified assembly of the in the contact carrier plate 14th recorded contact pins 6th , because in each of the two components 3 , 14th a thinner material has to be overcome. In particular, the contact pins 6th initially in the contact carrier plate 14th be preassembled and then together in the preassembled state in the contact 9b of the soil 3 to be introduced. The latter can take place when the contact carrier plate with the contact pins is already attached to an electrical component, for example a printed circuit board, a housing or a plug.

The material thickness 16a the contact carrier plate can, such as 2 shows smaller than the material thickness 16b in the overlap area 15th and in particular smaller than the material thickness 16 outside of the overlap area 15th be. The material thickness 16b of the soil in the area 15th is preferably also smaller than the material thickness 16 . the low material thicknesses 16a , 16b prevent the contact pins 6th during assembly in the contact carrier plate 14th can bend.

The contact carrier plate 14th is preferably made of a harder material than the housing 2 manufactured. Used as the material for the contact carrier plate 14th If plastic is used, it can be fiber-reinforced, in particular carbon-reinforced, but preferably glass-fiber reinforced.

The higher hardness of the contact carrier plate 14th causes that despite the low material thickness 16a the contact carrier plate 14th the contact pins 6th are kept safe. Due to the higher hardness, the wall offers the possibility of contact 9a a higher resistance for the holding elements 12th the contact pins 6th . The contact carrier plate can thus generate a higher holding force.

Especially with contact pins 6b with small cross-sections in the range of less than 0.5 mm ² are the contact surfaces of the stops 10 very small, while the large number of contact pins due to the high contact density results in a high insertion force K makes necessary. The high insertion force K leads to a high surface pressure under the stops 10 which does not lead to plastic deformation only with harder materials.

The higher hardness of the contact carrier plate 14th leads to that when plugging in the connector 1 in one mating direction S. for example on a printed circuit board in the plug-in direction S. located stops 10 of the contact pins with a higher surface pressure at the respective ends 11 the establishment of contact 9a can support without affecting the material of the contact carrier plate 14th deformed.

A flow of power 17th along which the force required for insertion from the housing 2 to the contact pins 6th is directed, consequently runs advantageously from the housing 2 on the contact carrier plate 14th and from there over the attacks 10 to the contact pins 6th if the higher hardness of the contact carrier plate is to be used.

The transmission of large contact forces can be ensured in a simple manner that the contact carrier plate 14th on one side 18th , preferably one flat side, over the entire surface of the housing 2 or the ground 3 is present. Over the side 18th becomes the power flow 17th guided in at least one direction when plugging together.

The contact carrier plate 14th can be an external mounting surface M. of the connector 1 form ( 1 ). The mounting surface M. lies with the connector plugged in 1 for example on a printed circuit board. The attacks 10 can be found at the bottom of the mounting surface M. issue.

The contact carrier plate 14th can be positively locked and captive on the housing by fastening means not shown in detail 2 be attached. For example, notches, bolts or toggles are used as form-fit elements. Pressing in or pressing the contact plate is also possible. In addition, the contact carrier plate can also be welded.

In a modification, individual, in particular larger, contact pins can also be in the ground 3 be attached and through the contact carrier plate 14th pass through, in which they then preferably only in the transverse direction Q are stabilized.

the 3 until 5 show the contact carrier plate 14th without contact pins 6th and housing 2 in a top, side and bottom view.

The contact carrier plate 14th is preferably designed essentially as a flat cuboid. The to the ground 3 of the housing 2 (see. 2 ) adjacent side 18th is plan.

The contact plate 14th is from the contacts 9 , 9a penetrated. At the attacks 10 (see. 2 ) facing ends 11 The contacts are expanding 9 , 9a longitudinal L. or plug direction S. . At the ends 11 are the contacts 9 , 9a preferably complementary to the contact pins 6th , especially their attacks 10 , designed.

The cross-sectional shape of the contact 9 , 9a transversely to the longitudinal direction L. depends on the cross-sectional shape of the contact pins. Are, as in the embodiment shown, contact pins 6th When used with a rectangular cross-section, the contact receptacles also preferably have a rectangular cross-section.

To save material, the contact carrier plate 14th especially between individual fields with recesses 19th be provided.

The arrangement of contacts 9 , 9a in the contact carrier plate 14th depends on the requirements of the respective application. For example, as shown, you can contact fields 7b be grouped with high contact density. The distance between the fields 7th is greater than the distance between the contacts 9 , 9a within a field.

The clear width 20th the establishment of contact 9 , 9a in the contact carrier plate 14th can be smaller than 1 mm, in particular less than 0.5 mm, and only in the area of the ends 11 increase.

6th and 7th show the contact carrier plate 14th in the pre-assembled state with contact pins 6th , 6b in the contacts 9 , 9a . The contact pins 6th , 6b are in the contact carrier plate 14th Retained loss-proof and assembly-proof. The attacks 10 are in the mating area 5 , here on the side of the circuit board, and butt against a side on the circuit board 21 the contact carrier plate 14th . The PCB side 21 lies on the side 18th opposite and can in particular be a mounting surface 21 form which limits an insertion stroke and forms a stop surface for, for example, the circuit board (not shown).

The length 22nd the contact pins 6th , 6b can after 6th and 7th considerably larger than the material thickness 16a the contact carrier plate 14th and a multiple of the material thickness 16a be. The length 22nd the contact pins can in particular be more than seven times as large as the material thickness 16a the contact carrier plate 14th be. The contact pins 6th , 6b can on the side assigned to the one plug-in area 4th the contact carrier plate 14th protrude further than on the side facing the other plug-in area 5 . The side with the longer ends of the contact pins can in particular be that of the bottom 3 facing side of the contact carrier plate 14th be.

The contact pins 6th , 6b and the assigned contacts 9 , 9a are, at least in the contact carrier plate 14th , so dimensioned that at least in sections, for example in the area of the holding elements 12th , there is an interference fit. The contact pins 6th , 6b and the contact carrier plate 14th are in the contact area 9 , 9a in engagement with each other, resulting in a frictional fixation in the longitudinal direction L. leads. In the transverse direction Q jump holding elements 12th the contact pins 6th , 6b before, which is in the material of the contact carrier plate 14th press and lead to an increase in the frictional connection and, if there is plastic deformation, to at least a slight form connection.

About the attacks 10 the diameter of the contact pins increases 6th , 6b in the contacts 9 , 9a so that there is a larger support surface at these points. This support surface is used in the transverse direction Q forces acting when inserting the contact pins 6th , 6b in the mating area 5 , for example in a printed circuit board, to be better absorbed and distributed over a larger area.

8th shows a schematic sectional view through the housing 2 without contact pins 6th and contact carrier plate 14th .

It can be seen that the housing is a pocket or receptacle 24 for the contact carrier plate 14th forms. One to the fasteners 23 on the contact carrier plate 14th (see. 4th and 6th ) complementary fastener 25th , for example a locking hook can be provided in the receptacle. The contacts 9 , 9b in the overlap area 15th open in the mating direction S. in the recording 24 .

The recording 24 can from an edge 26th be surrounded by the housing 2 in the mating direction 2 or longitudinal direction L. protrudes. Alternatively, of course, the edge 26th with the rest of the floor area 27 cursing.

At least part of the contact 9b in the overlap area 15th is where the recording 24 or the contact carrier plate 14th facing section 28 provided with a larger cross-section or a larger clear width than a section 29 on that of the contact carrier plate 14th remote end 13th . The section 29 serves to fix and stabilize the contact pin 6th in the connector area 4th . The length 30th in the longitudinal or plug-in direction of the section 29 is less than the length 31 of the section 28 . The length 30th of the section 29 in the longitudinal direction is preferably at most as great as the material thickness 16a ( 2 ) the contact carrier plate 14th . Also with a length of the area 29 Good holding properties can be achieved with at most twice the largest clear width in this section.

As finally in the embodiment of the 9 is shown by way of example, the housing 2 of the connector 1 several adjacent connector sections 32 exhibit. Any connector section 32 is analogous to the connector 1 constructed in one of the above versions.

The connector sections 32 are on common ground 33 , for example in the form of a base plate, connected to one another in one piece.

The connector 1 In this embodiment, one or more contact carrier plates can be used 14th have, which each also have several connector sections 32 can extend.

The connector 1 can be used, for example, to connect a large number of different mating connectors (not shown) with one in the plug-in area 5 arranged electrical component, in particular a circuit board to connect.

Here, too, the at least one contact carrier plate can 14th with the attached contact pins 6th , 6a be preassembled on the electrical component before the housing 2 with the contact carrier plate 14th is connected.

In 10 is a top view of the mating area 5 remote side according to the embodiment of the connector according to the invention 9 shown. The several juxtaposed plug-in sections 32 have different arrangements of contacts. The first three plug-in sections can be seen from the left 32 have identically structured contact carrier plates each with 5 contacts in a row and 8 rows of contacts arranged in pairs, although the contact arrangements of the plug-in sections differ. The fourth plug-in section from the left 32 has a different contact arrangement and also a different contact carrier plate. The fifth plug-in section from the left 32 again has a different contact arrangement and does not require a contact carrier plate. The last plug-in section from the left 32 has a different contact arrangement and also a different contact carrier plate.

Any combinations of contact arrangements and contact carrier plates in a plug-in section of a plug connector as shown here, but also in different plug connectors, are possible.

List of reference symbols

1

Connectors

2

casing

3

floor

4th

Connector area

5

Connector area (circuit board side)

6th

Contact pin

6a

larger contact pins

6b

smaller contact pins

7th

Field of contact pins

7a

Field with higher contact density

7b

Field with lower contact density

8th

Distance between adjacent contact pins

9

contact

9a

Contact recordings in the contact carrier plate

9b

Contact in the overlap area 15th in the ground 3

10

Stops of the contact pins

11

the end of the contact facing the stop

12th

Retaining elements of the contact pin

13th

the end 11 opposite end of contact

14th

Contact carrier plate

15th

Overlap area

16

Material thickness of the floor outside of the overlap area

16a

Material thickness of the contact carrier plate

16b

Material thickness of the floor in the overlap area

17th

Power flow

18th

the side of the contact carrier plate facing the floor

19th

Recesses in the contact carrier plate

20th

clear width of the contacts 9a

21

the side of the contact carrier plate facing the printed circuit board

22nd

Contact pin height

23

Fastening elements of the contact carrier plate

24

Holder for contact carrier plate

25th

Fastening element of the housing

26th

Edge of the recording

27

remaining bottom surface of the housing

28

Contacting us section 9b with a larger cross-section

29

Contacting us section 9b with a smaller cross-section

30th

Length of the section 29 in the longitudinal direction L

31

Length of the section 28 in the longitudinal direction L

32

Connector sections

33

Base

K

Insertion force

L.

Direction of longitudinal extension, longitudinal direction

M.

Mounting surface

Q

Direction transverse to the longitudinal extension, transverse direction

S.

Mating direction

Claims (13)

Electrical connector (1), in particular for plugging onto printed circuit boards, with contact pins (6, 6a, 6b) and a housing (2) which has a base (3), at least some of the Contact pins (6, 6a, 6b) extend both through the base (3) and through at least one separate contact carrier plate (14) which can be attached to the housing (2), the contact pins (6, 6a, 6b) being stops (10). which rest on the contact carrier plate (14), characterized in that contact receptacles (9, 9b), through which the contact pins (6, 6a, 6b) extend in the base (3), in a section facing the contact carrier plate (14) (28) have a larger cross section transversely to the longitudinal extension (L) of the contact pins (6, 6a, 6b) than in a section (29) of the contact receptacle (9, 9b) facing away from the contact carrier plate (14). Electrical connector (1) according to Claim 1 , characterized in that the contact carrier plate (14) is made of a harder material than the housing (2). Electrical connector (1) according to Claim 1 or 2 , characterized in that the contact pins (6, 6a) reaching through both the contact carrier plate (14) and the base (3) are fastened in the contact carrier plate (14). Electrical connector (1) according to one of the Claims 1 until 3 , characterized in that the contact carrier plate (14) is supported against a movement directed along the longitudinal direction (L) of the contact pins (6, 6a, 6b) in the direction away from the stops (10) by the housing (2). Electrical connector (1) according to one of the Claims 1 until 4th , characterized in that the section (29) with the smaller cross section extends over a length (30) which corresponds at most to the material thickness (16a) of the contact carrier plate (14). Electrical connector (1) according to one of the Claims 1 until 5 , characterized in that the contact carrier plate (14) forms a bottom-side mounting surface of the connector. Electrical connector (1) according to one of the Claims 1 until 6th , characterized in that the housing (2) forms a receptacle (24) in which the contact carrier plate (14) can be received. Electrical connector (1) according to one of the Claims 1 until 7th , characterized in that the base (3) in the area (15) overlapped by the contact carrier plate (14) has a reduced material thickness (16b) compared to at least a part of the non-overlapped area. Electrical connector (1) according to one of the Claims 1 until 8th , characterized in that contact pins (6, 6a, 6b) are provided with cross-sections of different sizes and that at least some of the contact pins (6b) with the smallest cross-sections pass through the contact carrier plate (14) and at least some of the contact pins (6a) the largest cross section do not extend through the contact carrier plate (14). Electrical connector (1) according to Claim 9 , characterized in that at least some of the contact pins (6b) extending both through the base (3) and through the contact carrier plate (14) are at least partially arranged in a higher contact density than at least some of the contact pins (6b) which do not extend through the contact carrier plate (14 ) extending contact pins (6a). Housing (2) of the electrical connector (1) according to one of the Claims 1 until 10 for assembly with the contact carrier plate (14). Method for producing an electrical connector (1), in which contact pins (6, 6a, 6b) are inserted into contact receptacles (9, 9a, 9b) of a base (3) of a housing (2) of the connector (1), characterized in that, that the contact pins (6b) have stops (10) and are pushed through the base (3) and a contact carrier plate (14) and rest with the stops (10) on the contact carrier plate (14), the contact pins (6b) being through contact receptacles (9, 9b) extend in the base (3), which in a section (28) facing the contact carrier plate (14) have a larger cross-section transversely to the longitudinal extension (L) of the contact pins (6b) than in a section (28) facing away from the contact carrier plate (14) Section (29) of the establishment of contact (9, 9b). Procedure according to Claim 12 , characterized in that first the contact carrier plate (14) with the contact pins (6b) is connected to an electrical component and then the housing (2) is attached to the contact carrier plate (14).

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