DE102011120056A1 - Plug connection for a circuit board - Google Patents

Abstract

The invention relates to a plug connection (10) for a circuit board (40) for contacting with a socket (12), the input side electrical contacts (17) for releasably contacting an electrical connector (20) and the output side contact pins (18); an electrically shielded bracket (14) having means for mounting the socket (12) and a support portion (31) for support on the board (40); a contacting board (16) which can be attached opposite the bracket (14) of the socket (12), the holes (30) for the contact pins (22) and on the side facing the socket (12) from the holes (30) in the direction of the board ( 40) has leading conductor tracks (34), wherein the contacting board (16) is metallized on its the conductor tracks (34) opposite the outside and along its edge (26) with the bracket (14) is electrically shielding connectable. The invention further relates to a mounting method therefor. This training allows easy to install and at the same time electromagnetically shielded connection of the plug to the board. It can be used a standard male connector, which is connected by means of the adapted bracket and the contacting board to a structurally compact and secure unit.

Description

The invention relates to a connector for a circuit board by means of a detachable plug in a corresponding, connected to the board socket can be inserted. Preferably, the plug axis runs parallel to the board plane.

It is desirable to make such connectors electromagnetically compatible (EMC) to ensure the best possible trouble-free operation. For this purpose, the electrical components must be shielded. This is a closed-loop, low-resistance cage which encloses the module hermetically. This is especially important for high-frequency signal transmissions, as they have a broad emission spectrum. One difficulty here are cable connections and their pluggability dar. Here among other things shielded electrical round plug connections are used, which have one or more contacts, which are integrated in an insulating body in the connector housing. These contacts contact at their one end the corresponding counterparts in the cable connector. The other end is inside a shielded component housing. There, these contacts can be contacted via multi-core cable or directly to the board via through holes.

It is often not possible to provide a separate screen housing for electronic components. It would be desirable to place the connector directly on the board and to contact the screen as possible "tight" on the board. However, this is especially difficult if you have a round plug "horizontal", d. H. wants to arrange parallel to the plane of the board. The increasing miniaturization of the connectors represents another additional challenge for the shield housing.

In the prior art, a common solution is the use of a 90 ° angle, which has a bore for receiving a socket. This allows the socket to be mounted at 90 ° to the board and the shielding socket housing to be conductively contacted to the board. The signal contacts are connected by wires or strands to the board via via. However, this type of contacting the signal contacts is manually consuming. Furthermore, the arrangement is sensitive because the wires are exposed, so that an SMT contact (surface mount) of the signal contacts is only possible with difficulty. In addition, the wires have a significant unshielded length between the plug and the board, which is unacceptable at higher signal bandwidths with respect to EMC. Therefore, such arrangements must be equipped with an additional shield housing, which requires additional manual effort.

On this basis, the invention is based on the object to provide a generic connector that has electromagnetic compatibility and in particular allows a secure connection with horizontal connector guide. Furthermore, the connector should be easy to manufacture and assemble.

The invention results from the features of claim 1. Advantageous developments and refinements of the invention are the subject of the dependent claims. Other features, applications and advantages of the invention will become apparent from the following description, as well as the explanation of embodiments of the invention, which are illustrated in the figures.

In particular, the invention comprises

• - A female connector having on the input side electrical contacts for releasably contacting an electrical connector and the output side contact pins;
• - An electrically shielded bracket, the means for attaching the socket and a support area for support on the board has;
• - An attachable to the bracket of the receptacle contacting board, the holes for the pins and on the socket side facing the holes in the direction of the board leading tracks, wherein the contacting board is metallized on its outer side opposite the tracks and along its edge with the Bracket is electrically shielding connectable.

This training allows easy to install and at the same time electromagnetically shielded connection of the plug to the board. It can be used a standard socket, which can be connected by means of the adapted bracket and the contacting board to a structurally compact and secure unit.

According to an advantageous embodiment of the invention, the contacting board is soldered along its edge with the bracket. This allows safe and electromagnetic reliable shielded connection between the contacting board and the bracket during operation.

According to an advantageous embodiment of the invention, the contacting board in the contact area to the board to each trace an arcuate, of a trace in order Solder connection enclosed recess. This makes it easy to produce a solder joint with a provided below the recess on the board conductor.

According to an advantageous embodiment of the invention, the bracket is made of metal. This ensures a reliable electromagnetic shielding and at the same time a rigid attachment of the socket to the board. Alternatively, the bracket can be made of metallized plastic.

According to an advantageous embodiment of the invention, the socket is a circular socket. Alternatively, other types of sockets, especially tabs, usable.

According to an advantageous embodiment of the invention, the holes are formed as through holes. In this case, the ends of the contact pins protrude beyond the contacting board and provide contact surfaces for signals. Alternatively, the holes may also be formed as blind holes, so that the outer surface of the contacting board can be metallized throughout and complete shielding is ensured.

According to an advantageous embodiment of the invention, the bracket on the board side at least one internal threaded hole for attachment to the board by means of a screw. This makes it possible to achieve a detachable and, at the same time, reliable connection between the bracket and the circuit board. Preferably, the connection is carried out by means of two screws. Alternatively, the bracket and the board can each be provided with surfaces for mutual soldering and thus insoluble bonding.

• – die Steckerbuchse am Haltewinkel befestigt wird;
• – die Kontaktstifte der Steckerbuchse in die Löcher der

A method for mounting the above-described connector is characterized in that

• - The socket is attached to the bracket;
• - the pins of the socket into the holes of the

• – die Kontaktierungsplatine an dem Haltewinkel befestigt wird;
• – die Steckverbindung auf die Platine aufgesetzt und mit dieser verlötet wird.

Contacting board inserted and soldered to the surrounding conductor tracks;

• - The contacting board is attached to the bracket;
• - The connector is placed on the board and soldered to it.

This method allows a quick and easy attachment of the socket on the board.

According to an advantageous embodiment, the contacting board is soldered to the bracket to achieve a reliable connection.

Further advantages, features and details emerge from the following description in which an exemplary embodiment is described with reference to the drawing. Described and / or illustrated features form the subject of the invention, or independently of the claims, either alone or in any meaningful combination. The same, similar and / or functionally identical parts are provided with the same reference numerals.

Show it:

1 : an exploded view of a connector;

2 a view of the connector in the mounted state obliquely from above;

3 : the connector according to 2 in a view obliquely from below;

4 a perspective view of bracket and circular socket;

5 : the contacting board in 3 views;

6 a perspective view of bracket and Kontaktierungsplatine;

7 : a conductor arrangement on a board for attaching the connector.

In the 1 to 5 is the plug connection 10 or a method for mounting the same, which essentially consists of a socket 12 , a bracket 14 and a contacting board 16 consists. The socket 12 is in the illustrated embodiment, a circular socket, which on the in 4 shown side contact openings 17 for receiving contact pins 18 a plug-in connector 20 having. In the illustrated embodiment, four pins 18 provided, it can of course also be provided more or fewer pins. On the opposite, in 1 shown side has the socket 12 contact pins 22 on, with the recordings not shown contact or plugged plug 20 with its contact pins 18 ,

The shielded socket 12 will be in a customized opening 24 in the bracket 14 fitted and then soldered along the circumference.

In the 5 and 6 is the contacting board 16 shown in detail, with respect to their outer contour to the outer contour of the bracket 14 is adjusted, so when using a circular socket a semicircular upper edge 26 having, to the correspondingly shaped edge 28 of the bracket 14 fits to a seamless connection between the bracket 14 and the contacting board 16 to cause the later by soldering 32 ( 2 and 3 ) is insoluble and electromagnetically shielded connected.

The contacting board 16 has holes 30 in number and arrangement of the contact pins 22 correspond and when merging the contacting board 16 and the bracket 14 enclose this. Preferably, the holes 30 formed as through holes, so that in the assembled state, the contact pins 22 through the holes 30 protrude through, as in the 2 and 3 shown. The holes 30 may alternatively be formed as blind holes when the contact pins 22 are executed according to short. The bracket 14 has a support surface 31 on, by means of this on the board 40 sitting.

The inside of the contacting board 16 ie the socket 12 facing side has - as in 5 shown right - Tracks 34 on, each of which first ends the holes 30 enclose a solder joint to the pins inserted through it 22 to enable. The respective second ends of the conductor tracks 34 enclose arcuate, preferably semi-circular recesses 36 , whose walls as arcuate contact surfaces 37 are formed, which with the conductor tracks 34 are connected. The contact surfaces 37 the recesses 36 are preferably formed by hollow vias in the track, which are halved in the subsequent Beschneidungsprozess the board (half vias). This results in a cavity for soldering, which attracts solder by capillary action and thus results in a particularly good contact. In contrast to contacting by means of through holes, this eliminates a manual soldering process. The hatched areas of the contacting board 16 in 5 show the shield layer 39 which z. B. were prepared by metallization. The tracks 34 are in the illustrated embodiment on the female connector 12 facing inside of the contacting board 16 arranged. Alternatively, it is also possible for them in a contact-making board produced in the layer structure 16 to arrange on an inner layer.

7 shows a conductor arrangement 38 on a circuit board 40 ( 2 or 3 ) for mounting the above-described connector 10 , This consists of a U-shaped strip conductor area 42 and a number of signal contacts 44 , in the manner not shown on the board 40 are further electrically connected. There are also two holes 46 provided, with not shown internal threads in the bracket 14 aligned and over the means of screws 48 ( 1 and 3 ) the plug connection 10 on the board 40 can be fixed. To the electrically conductive connection between the signal contacts 44 and the tracks 34 To achieve these, they are connected with each other at the recesses 36 soldered.

For installation, first the socket 12 in the corresponding hole of the bracket 14 electrically conductive mounted. Here, a press fit, a screw, for example by means of union nut or a cohesive connection such as soldering can be applied. In a second step, the contacting board 16 assembled. This will, as in 6 shown from the other side of the bracket 14 attached. The contact pins 22 the socket 12 grip through corresponding holes 30 the contacting board 16 , After inserting the contacting board 16 in the bracket 14 become the contact pins 22 with the corresponding holes 30 connected by soldering. Subsequently, the shield layer of the contacting board 16 with the bracket 14 also connected by soldering. The free lengths of the protruding pins 22 can be shortened. Soldering can be done by hand soldering, IR soldering or in the vapor phase.

When fitting the connector 10 on the board 40 is a preferred variant of the solder joint, the application of solder paste on the contact surfaces and the subsequent soldering in the vapor phase. In this case, the shielding U-shaped conductor track area 42 with the shield surface of the contacting board 16 electrically connected just as the signal contacts 44 with the contact surfaces 37 ,

The invention enables a machine assembly of the board 40 with plug connections 10 , wherein the signal lines shielded and this screen advantageous on the board 40 is contacted. The shielded housing is replaced by the bracket 14 and the shield layer of the contacting board 16 formed, which in addition the signal contacts to the board 40 leads.

LIST OF REFERENCE NUMBERS

10

connector

12

socket

14

bracket

16

Kontaktierungsplatine

17

contact openings

18

contact pins

20

plug

22

contact pins

24

opening

26

Edge of the contacting board

28

Edge of the bracket

30

holes

31

bearing surface

32

soldering

34

conductor tracks

36

recesses

37

contact surfaces

38

Interconnect arrangement

39

Screen surface / Metallization

40

circuit board

42

U-shaped track area

44

signal contacts

46

drilling

48

screw

Claims (12)

Plug connection ( 10 ) for a board ( 40 ) for contacting them with - a socket ( 12 ), the input side electrical contacts ( 17 ) for releasably contacting an electrical connector ( 20 ) and output pins ( 18 ) having; - an electrically shielded bracket ( 14 ), the means for attaching the socket ( 12 ) as well as a circulation area ( 31 ) for support on the board ( 40 ) having; - one on the bracket ( 14 ) of the socket ( 12 ) oppositely attachable contacting board ( 16 ), the holes ( 30 ) for the contact pins ( 22 ) as well as on the socket ( 12 ) facing side of the holes ( 30 ) towards the board ( 40 ) leading tracks ( 34 ), wherein the contacting board ( 16 ) on their tracks ( 34 ) is metallized opposite the outside ( 39 ) and along its edge ( 26 ) with the bracket ( 14 ) is electrically shielding connected. Plug connection according to claim 1, characterized in that the contacting board ( 16 ) along its edge ( 26 ) with the bracket ( 14 ) is solderable. Plug connection according to claim 2, characterized in that the edge ( 26 ) of the contacting board ( 16 ) with a metallization ( 39 ) is provided. Plug connection according to claim 1, characterized in that the contacting board ( 16 ) in the contact area to the board ( 40 ) to each track ( 34 ) an arcuate recess ( 36 ) whose wall ( 37 ) is electrically conductive. Plug connection according to claim 1, characterized in that the bracket ( 14 ) consists of metal. Plug connection according to claim 1, characterized in that the socket ( 12 ) is a Rundsteckerbuchse. Plug connection according to claim 1, characterized in that the holes ( 30 ) are formed as through holes. Plug connection according to one of the preceding claims, characterized in that the circular plug socket ( 12 ) electrically shielding with the bracket ( 14 ) is connectable. Plug connection according to one of the preceding claims, characterized in that the bracket ( 14 ) on the board side, at least one internal threaded hole for attachment to the board ( 40 ) by means of a screw. Method for mounting a plug connection ( 10 ) according to one of the preceding claims, characterized in that - the socket ( 12 ) on the bracket ( 14 ) is attached; - the contact pins ( 22 ) of the socket ( 12 ) in the holes ( 30 ) of the contacting board ( 16 ) and with the surrounding tracks ( 34 ) are soldered; - the contacting board ( 16 ) on the bracket ( 14 ) is attached; - the plug connection ( 10 ) on the board ( 40 ) is placed and soldered with this. Method according to claim 10, characterized in that the contacting board ( 16 ) with the bracket ( 14 ) is soldered. Method according to claim 10, characterized in that the plug connection ( 10 ) on the board ( 40 ) is mechanically placed and soldered with this machine.

Images