WO2013083121A1

WO2013083121A1 - Plug connection for a printed circuit board

Info

Publication number: WO2013083121A1
Application number: PCT/DE2012/100368
Authority: WO
Inventors: Ulrich Hagn; Mathias Nickl; Thomas Bahls; Markus Breu; Robin Gruber
Original assignee: Deutsches Zentrum für Luft- und Raumfahrt e.V.
Priority date: 2011-12-05
Filing date: 2012-12-04
Publication date: 2013-06-13
Also published as: DE102011120056A1; DE102011120056B4

Abstract

The invention relates to a plug connection (10) for a printed circuit board (40) in order to bring the printed circuit board into contact with a socket (12) which has electric contacts (17) on the inlet side for removably contacting an electric plug (20) and contact pins (18) on the outlet side; an electrically shielded support bracket (14) which has means for attaching the socket (12) and a bearing region (31) for supporting on the printed circuit board (40); a contact circuit board (16) which can be attached to the support bracket (14) so as to lie opposite the socket (12) and which has holes (30) for the contact pins (22) and conductor paths (34) which lead from the holes (30) in the direction towards the printed circuit board (40) on the side facing the socket (12), said contact circuit board (16) being metallized on the printed circuit board outer face opposite the conductor paths (34) and being connectable to the support bracket (14) along the edge (26) of the contact circuit board in an electrically shielded manner. The invention further relates to an assembly method for the plug connection. The design allows a plug/printed circuit board connection which is easy to assemble and which is simultaneously electromagnetically shielded. A standard socket can be used which can be connected into a structurally compact and secured unit by means of the matching support bracket and the contact circuit board.

Description

Plug connection for a circuit board

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 (E V) to ensure the best possible trouble-free operation. For this purpose, the electrical components must be shielded. This is a closed-loop, low-impedance cage that hermetically encloses the assembly. This is especially important for high-frequency signal transmissions, as they have a broad emission spectrum. To put a difficulty

Among other things, shielded electrical circular connectors are used, which have one or more contacts, which are integrated in a Isoiationskörper in the connector housing. These contacts provide the corresponding counterparts in the cable connector at one end. The other end is inside a shielded one

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 Sehirmgehäuse 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 one uses a round plug "horizontal", i. 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 ° -Winkeis having a bore for receiving a socket. Thereby, the socket 90 in the ^east -Winkei mounted to the circuit board and the shield end socket housing are conductively contacted with the circuit board. The signal contacts are connected by wires or strands with the board by means of through-connection. 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 (surface mount) of the signal contacts is poorly possible. In addition, the wires have a significant unshielded length between Plug and board, which is not acceptable at higher signal bandwidths in terms of EMC. Therefore, such arrangements mt have an additional

Umbrella housing to be populated, which requires additional manual effort.

Publications EP 0 552 622 A1, DE 3723 791 A1, DE 10 2006 039 879 A1, JP 11 288 772 A, US 2006/0 172 562 A1 and US Pat. No. 4,964,806 A are conventional

generic type connectors for boards known.

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

Further 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 shown in the figures.

In particular, the invention comprises

- A socket, the input side electrical contacts to the detachable

Contacting an electrical connector and the output side contact pins has;

- An electrically shielded Haltewinkei having means for attaching the socket and a support area for support on the board;

- An attachable at the Haitewinkel the socket opposite

Kontaktierungpiatine, the holes for the pins as well as on the

Socket facing side of the holes in the direction of the board leading tracks, wherein the Kontaktierungspiatine is provided on its opposite the tracks outer side with a metallization and is electrically shielding connected along its edge with the Haltewinkei.

This training allows easy to install and at the same time electromagnetically shielded connection of the plug to the board. It can be one

Standard plug socket can be used, which can be connected by means of the fitted bracket and the Kontaktierungspiatine to a structurally compact and secure unit is

According to an advantageous embodiment of the invention, the contacting board along its edge with the Ha! Tewinke! veriötbar. 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 Koniaktberelch to the board to each track an arcuate. from a conductor for the purpose of soldered connection enclosed recess. This makes it easy to produce a soldered connection with a conductor path provided below the recess on the circuit board.

According to an advantageous embodiment of the invention looks at the bracket 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 Haliewinkei can also 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 as

Through holes formed. 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 Kontaktierungspiatine can be metallized throughout and a complete shielding is ensured

According to an advantageous development of the invention, the mounting bracket comprises at least one internally threaded bore on the circuit board side for attachment to the circuit board by means of a screw. This allows a detachable and at the same time reliable connection between retaining bracket! and 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.

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

the filter box is attached to the Haitewinkei;

the pins of the socket into the holes of the

Contacting board inserted and soldered to the surrounding conductor tracks;

the contacting board is attached to the Haitewinkei; the connector is placed on the board and soldered to it.

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

According to an advantageous embodiment, the contacting board with the

Brazed angle soldered to achieve a reliable connection.

Further advantages, features and details will become apparent from the following description in which reference to the drawing Ausführungsbeispiei in

Described individually, 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 functional parts are provided with the same reference numerals.

Show it:

Figure 1: an exploded view of a connector;

Figure 2 is a view of the connector in the assembled state obliquely from above; Figure 3: the connector of Figure 2 in a view obliquely from below;

Figure 4; a perspective view of bracket and circular socket;

Figure 5: the contacting board in 3 views;

Figure 6 is a perspective view of Haitewinkei and contacting board;

FIG. 7: a printed conductor arrangement on a circuit board for mounting the

Plug connection, in the Figure 1 to 5, the connector 10 and a method for mounting the same is shown, which consists essentially of a socket 12, a

Bracket 14 and a contacting board 16 is made. The socket 12 is in the illustrated Ausführungsbeispiei a circular socket, which has on the side shown in Figure 4 contact openings 17 for receiving contact pins 18 of a plug-in connector 20, in the illustrated Ausführungsbeispiei are four Provided contact pins 18, it can of course be provided more or fewer Kontakfstsfte. On the opposite side shown in FIG. 1, the socket 12 has contact pins 22 which contact the receptacles, not shown, or with its plug pins 18 when the plug 20 is inserted.

The shielded female connector 12 is fitted into a mating opening 24 in the bracket 14 and then soldered along the circumference.

In Figures 5 and 6, the Kontaktierungspiatine 16 is shown in detail, which is adapted in terms of their outer contour to the outer contour of the bracket, so when using a circular socket has a semi-circular upper edge 26 which fits to the corresponding shaped edge 28 of the HaitewinkeSs 4 to a jointless connection between the Haltewinkei 14 and the Kontaktierungspiatine 16 to effect, later by Veriötung 32 (Figures 2 and 3) undetachable and

Electromagnetically shielded is connected.

The contacting Piatine 16 has holes 30 which correspond in number and arrangement of the contact pins 22 and which enclose the merging of the Kontaktierungsplatine16 and the bracket 4 this. Vorzugsswesse are the holes 30 as

Through holes formed so that in the mounted state, the contact pins 22 protrude through the holes 30, as shown in Figures 2 and 3. The holes 30 may alternatively be formed as blind holes when the contact pins 22 are made correspondingly short. The bracket 14 has a support surface 31, mitteis this sits on the board 40.

The inside of the contacting station 16, i. the plug socket 12 facing side has - as shown in Figure 5 right --- conductor tracks 34, whose respective first ends enclose the holes 30 to allow a solder connection to the plugged through this contact pins 22. The respective second ends of the conductor tracks 34 enclose arcuate, preferably semicircular recesses 36 whose walls are designed as arcuate contact surfaces 37, which are connected to the conductor tracks 34. The contact surfaces 37 of the recesses 38 are preferably formed by high through-contacts (vias) in the printed conductor, which are halved in the subsequent trimming process of the printed circuit 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 is thereby eliminated manual soldering process. The hatched areas of the contacting board 16 in FIG. 5 show the shielding layer 39, which has been produced, for example, by metallization. The interconnects 34 are arranged in the illustrated embodiment on the plug socket 12: facing the inside of the contacting board 16. Alternatively, it is also possible to arrange these in a shingled in the layer structure Kontaktserungsplatine 16 on an inner layer.

FIG. 7 shows a printed conductor arrangement 38 on a printed circuit board 40 (FIG. 2 or 3) for mounting the above-described plug-in connection 10. This consists of an egg-shaped printed conductor region 42 and a number of signal contacts 44, which are further electrically conductively connected to the printed circuit board 40 in a manner not shown are. Further, two holes 46 are provided, which are aligned with not shown internal threads in the Haitewinkel 14 and on the means of screws 48 (Figure 1 and 3), the connector 10 is fixed to the circuit board 40. To the eiektrisch leading connection between the

Signal koni files 44 and the tracks 34 to reach, they are veriötet each other at the recesses 36.

For mounting, the socket 12 is first electrically conductively mounted in the corresponding bore of the Haftewinkeis 14 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

Contact plate 6 mounted, this is, as shown in Figure 6, plugged from the other side of Haltewinkeis 14. The contact pins 22 of the female connector 12 engage through corresponding holes 30 of the contactor circuit board 16. After inserting the contacting board 16 in the bracket 14, the contact pins 22 are connected to the corresponding holes 30 by soldering. Subsequently, the

Shielding the contacting board 16 with the bracket 14 also connected by soldering. The free lengths of the protruding pins 22 can be shortened. The soldering operations can be done by hand oven, 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 order of solder paste on the contact surfaces and the

subsequent soldering in the vapor phase. In this case, the shielding U-shaped conductor track region 42 is electrically connected to the shielding surface of the contacting board 16 in the same way as the signal contacts 44 with the contact surfaces 37. The invention enables a machine loading of the board 40 with

Plug connections 10, wherein the signal lines shielded and this screen is advantageously contacted on the circuit board 40. The shielded housing is replaced by the

Bracket 14 and the screen days of Kontaktierungsplatine 6 is formed, which additionally leads the signal contacts to the board 40.

LIST OF REFERENCE NUMBERS

10 plug connection

12 socket

14 Haltewsnkel

16 contact boards

17 contact openings

18 contact pins

20 plugs

22 contact pins

24 opening

26 edge of Kontaktierungspiatlne

28 edge of Haite inkeis

30 holes

31 bearing surface

32 soldering

34 tracks

36 recesses

37 contact points

38 trace arrangement

39 Schirmef ee / Mefaliisierung

40 board

42 U-shaped conductor track area

44 signal acknowledgments

46 holes

48 screws

Claims

claims

Plug connection (10) for a circuit board (40) for their con tact with

- A socket (12) having on the input side electrical contacts (17) for releasable Kontaklierung an electrical connector (20) and the output side contact pins (22);

An electrically shielded holding bracket (14) having means for mounting the strainer socket (12) and a support portion (31) for support on the circuit board (40);

- one at the holding angle! (14) of the socket (12) opposite

attachable contacting board (16), the holes (30) for the

Contact pins (22) and on the plug socket (12) facing side of the holes (30) in the direction of the board (40) leading conductor tracks (34), wherein the contacting board (16) on its the

Leitarbahnen (34) opposite outer side with a metallization (39) is provided and along its edge (26) with the Haltewinkei (14) electrically shielding connectable.

Plug connection according to claim 1, characterized in that the contacting board (16) along its edge (26) with the Haltewinkei (14) is soldered,

Plug connection according to claim 2, characterized in that the edge (26) of the contacting board (16) is provided with a metallization (39).

Plug connection according to claim 1, characterized in that the contacting board (16) in the contact region to the circuit board (40) to each conductor track (34) has an arcuate recess (36) whose wall (37) is electrically conductive.

Plug connection according to claim 1, characterized in that the

Retaining angle (4) metal views.

Plug connection according to claim 1, characterized in that the socket (12) is a circular socket.

7. Plug connection according to claim, characterized in that the holes (30) are formed as through holes.

8. Plug connection according to one of the preceding claims, characterized

characterized in that the circular connector socket (12) is electrically shielding connected to the bracket (4).

9. Plug connection according to one of the preceding claims, characterized

in that the adhesion angle (14) on the tube side comprises at least one internal threaded bore for attachment to the circuit board (40) by means of a screw.

10. A method for mounting a connector (0) according to one of the preceding claims, characterized in that

- The socket (12) is attached to the bracket (14);

- The contact pins (22) of the socket (12) in the holes (30) of the

Kontaktierungsp! Atine (16) are plugged and soldered to the surrounding traces (34);

- the Koniaktierungspiatine (16) is attached to the Halfewinske (14);

- The connector (10) is placed on the Piatine (40) and soldered to it.

11. The method according to claim 10, characterized in that the

Kontaktierungspfatine (16) with the bracket (14) is soldered.

12. The method according to claim 10, characterized in that the

Plug-in connection (10) on the board (40) machined and soldered with this machine.