HK1138114A - Printed circuit board plug-type connector and connection module with printed circuit board plug-type connector - Google Patents

Description

Plug-in connector for printed circuit boards and connection module with the same

Technical Field

The invention relates to a plug-in connector for printed circuit boards according to the preamble of claim 1; and also to a connection module with a plug-in connector for a printed circuit board.

Background

A plug-in connector of this general type is known, for example, from patent publication DE10257308B 3. A plug-in connector for printed circuit boards comprises a plurality of contact elements, each contact element comprising two connection sides, one connection side being in the form of an insulation displacement contact (insulation displacement contact) for connecting a lead and the other connection side being in the form of a fork contact (fork contact) for contacting a connection pad on a printed circuit board; and a plastic housing into which the insulation displacement contact of the contact element can be inserted, the insulation displacement contact and the fork contact being arranged such that they are deflected toward one another, at least one lower side edge of the insulation displacement contact being supported on the plastic housing, so that the contact element is held in the plastic housing such that the contact element cannot be disassembled in the event of a connecting force on the insulation displacement contact, the plastic housing comprising at least one chamber-shaped region, and the fork contact being accommodated completely in the longitudinal direction by the plastic housing, a rib being provided on an inner side in the chamber-shaped region, which rib defines a guide for the fork contact, the contact region of the fork contact projecting beyond the rib, the front side region of the rib being chamfered. In this case, the packing density is mainly determined by the module pitch between the fork contacts, which is in the range of a few millimeters.

One preferred field of implementation of the plug-in connector for printed circuit boards is the use in connection modules. Such a connection module comprises a housing in which at least one printed circuit board is arranged, after which a plug-in connector for the printed circuit board is pushed onto one end side of the printed circuit board. The printed circuit board of such a connection module generally represents a high-quality process, so that the process is changed as little as possible. On the other hand, these requirements are likewise imposed when the connecting cable is not in the form of twisted pairs but has a plug-in connector or connecting contacts of various types, for example RJ45 sockets or coaxial sockets.

Disclosure of Invention

The object of the invention is therefore based on the technical problem of providing a plug-in connector for printed circuit boards and a connection module, by means of which a flexible and diverse cable connection can be achieved.

This technical problem is solved by the solution with the features of claims 1 and 5. Further advantageous configurations of the invention are given in the dependent claims.

To this end, a plug-in connector for printed circuit boards comprises a housing in which a contact element is arranged, which contact element has a first contact portion at one end and a second contact portion at the other, opposite end, the first contact portion being in the form of a fork contact and the second contact portion being in the form of a contact which is in contact with the printed circuit board. Thus, the printed circuit board comprising the interface can remain unchanged, and the universal interface can be produced by the contacts contacting the printed circuit board. To connect the cables or leads, the printed circuit board with the desired connection contacts, such as RJ45, Lemo, coaxial or wire-wrap contacts, may be connected via contacts that contact the printed circuit board. Likewise, for example, printed circuit boards for system testing may be connected.

In this case, the contacts which are in contact with the printed circuit board are likewise preferably in the form of fork contacts.

In a further preferred embodiment, the contact elements are constructed symmetrically, which is particularly advantageous for handling and assembly. In this case, the contact element is configured mirror-symmetrically with respect to the contact element longitudinal axis or centrally symmetrically with respect to the center of gravity.

In a further preferred embodiment, the housing of the plug-in connector for printed circuit boards is constructed in two parts.

The plug-in connector for the printed circuit board is preferably in the form of a separate, independent component. However, it is also possible to integrate the plug-in connector for a printed circuit board together with the adapter printed circuit board and the associated connection contacts into a housing as a compact component.

In the case of a plug-in connector for printed circuit boards in the form of a separate component, the adapter printed circuit board with the connection contacts is likewise preferably arranged in a separate housing.

For connecting the housing to the adapter printed circuit board, the housing preferably comprises a cylindrical receptacle on each side, so that the housing can be connected to the housing of the connection module by means of screws.

In the design of the plug-in connector of the printed circuit board, the adapter printed circuit board and the associated contacts as a common, compact component can be connected to the housing of the connection module by means of long screws which are guided through the cylindrical receptacle. On the other hand, in the case of the separate design, the plug-in connector for the printed circuit board is initially connected by means of a first screw which has an internal thread on the side facing the adapter printed circuit board, into which internal thread a second screw is screwed, wherein the second screw is guided through the cylindrical receptacle.

Drawings

The invention will be described in more detail hereinafter with reference to preferred exemplary embodiments. In the figure:

fig. 1 shows a perspective view of a plug-in connector for a printed circuit board in an assembled state;

fig. 2 shows an exploded perspective view of the plug-in connector for a printed circuit board as shown in fig. 1;

fig. 3 shows a perspective view of a 17-pin plug-in connector for a printed circuit board with a printed circuit board (prior art) of a connection module;

fig. 4 shows a perspective view of two 17-pin plug-in connectors for printed circuit boards with an adapter printed circuit board;

fig. 5 shows a perspective view of a plug-in connector for a printed circuit board with a front frame plate (prior art);

FIG. 6 shows a perspective view of a housing with an adapter printed circuit board and a coaxial male connector;

FIG. 7 shows a perspective view of a connection module; and is

Fig. 8 shows a schematic perspective view of a screw with an internal thread.

Detailed Description

Fig. 1 shows a perspective view of a plug-in connector 1 for printed circuit boards in the assembled state, and fig. 2 shows an exploded view thereof. The plug-in connector 1 for printed circuit boards comprises a first housing part 2 and a second housing part 3, which can be interlocked together. For this purpose, the first housing part 2 has three locking lugs 4 on the upper side, which lock into corresponding locking openings 5 in the second housing part. Correspondingly, three further locking lugs 4 are provided on the underside of the first housing part 2 and three additional locking openings 5 are provided on the underside of the second housing part 3. Contact elements 6 in the form of double-prong contacts are arranged in the housing of the plug-in connector 1 for printed circuit boards. In this case, the first fork contact 7 is intended to make contact with a printed circuit board 10 (see fig. 3 or 4) of the connection module, while the second fork contact 8 is intended to make contact with an adapter printed circuit board 11 or a measurement printed circuit board (see fig. 4). Ribs 9 which in each case guide the fork contacts 7, 8 are provided in both the first housing part 2 and the second housing part 3. In this case, the contact regions 12 of the fork contacts 7, 8 project beyond the rib 9, the front region of the rib 9 being chamfered so that it is pushed more easily onto the printed circuit boards 10, 11. At the rear side 13, the housing parts 2, 3 comprise an entry slot 14 through which the fork contact 7, 8 is inserted. In this case, the stop edges 15, 16 or 17, 18 serve to insert the fork contacts 7, 8 in a defined manner and to rest on the housing parts 2, 3 before entering the slot 14. In this case, the contact element 6 is configured to be symmetrical with respect to the central longitudinal axis L. Finally, the first housing part is formed with two latching hooks 19 on the upper side and the lower side in each case.

Fig. 3 shows a situation in which two 17-pin plug-in connectors 20 for printed circuit boards according to patent publication DE10257308B2 have been plugged onto the printed circuit board 10 of the connection module 30, and fig. 5 shows, in a manner complementary thereto, a front frame 21 on which the plug-in connectors 20 for printed circuit boards are latched, the front frame 21 and thus the plug-in connectors 20 for printed circuit boards being screwed to the housing 31 of the connection module 30 by means of two screws 22. If, for example, it is intended to replace the plug-in connector 20 for printed circuit boards with insulation displacement contacts by another connection technology, the plug-in connector 20 can be detached from the printed circuit board 10 and replaced by the plug-in connector 1 for printed circuit boards, the fork contacts 7 having the same module pitch as the fork contacts of the plug-in connector 20.

Fig. 4 illustrates a plug-in connector 1 for printed circuit boards according to the invention, whose fork contacts 7 are mounted on the printed circuit board 10 of the connection module 30 and whose fork contacts 8 are mounted on the adapter printed circuit board 11. The desired plug-in connector or connecting contact is then arranged on the adapter printed circuit board 11 and guided by means of conductive tracks to the contact pads, which are then brought into contact with the tuning fork contacts 8. Fig. 6 illustrates that for the case of a coaxial plug-in connector 23, the adapter printed circuit board 11 with the coaxial plug-in connector 23 is arranged in a separate housing 24. A cylindrical cavity 25 is provided transversely on the housing 24.

A preferred connection to the connection module 30 is achieved by initially screwing the plug-in connector 1 for printed circuit boards with the front frame plate 21 onto the housing 31 of the connection module 30 by means of screws 26 (see fig. 8). For this purpose, the screw 26 has a first thread 27, which matches the housing of the connection module. Furthermore, the screw 26 has an elongate head 28 on the other, opposite side, which is formed with an internal thread 29. In this case, the head 28 matches the cylindrical receptacle 25. The adapter printed circuit board 11 is then inserted onto the return contact 8, the head 28 being immersed in the cylindrical receptacle. A screw, the thread of which matches the internal thread 29, is then inserted into the cylindrical receptacle 25 before the front side of the housing 24. Thus, the housing 24 may then be indirectly connected with the housing of the connection module 30.

Finally, fig. 7 illustrates a fully assembled connection module 30 comprising a housing 31 and a rear side 32 with active technology. In this case, various interfaces for signals and supply voltages are provided on the rear side 32. In the highest row, a plug-in connector 20 for a printed circuit board is provided, which is formed with insulation displacement contacts. Below it, an additional plug-in connector 33 for printed circuit boards is provided with wire wrap contacts 34, the design of which is not the subject of the present invention. Below it, two housings 24 of the adapter printed circuit board 11 with coaxial plug-in connectors 23 are provided (see fig. 6). Correspondingly, an embodiment for the RJ45 socket 35 and the Lemo plug-in connector 36 is shown below it, the housing having a stepped structure, that is to say a front higher than a rear, in two subsequent variants.

List of reference marks

Plug-in connector for printed circuit boards

2 first housing part

3 second housing part

4 locking lug

5 locking mouth

6 contact element

7 first fork contact

8 second fork contact

9 Rib

10 printed circuit board

11 adapter printed circuit board

12 contact area

13 rear side part

14 into the pit

15 stop edge

16 stop edge

17 stop edge

18 stop edge

19 locking hook

Plug-in connector 20 for printed circuit boards

21 front frame plate

22 screw

23 coaxial plug-in connector

24 individual housings

25 cylindrical cavity

26 screw

27 screw thread

28 head

29 internal screw thread

30 connection module

31 shell

32 rear end portion

33 plug-in connector for printed circuit boards

34 wire wound contact

35 RJ45 socket

36 Lemo plug-in connector

L central longitudinal axis

Claims (8)

1. Plug-in connector for printed circuit boards, comprising a housing in which a contact element is arranged, which contact element comprises a first contact portion at one end in the form of a fork contact and a second contact portion at the opposite end in the form of a contact which is in contact with the printed circuit board.

2. Plug-in connector for printed circuit boards according to claim 1, wherein the second contact section is in the form of a fork contact (8).

3. Plug-in connector for printed circuit boards according to claim 2, wherein the contact elements (6) are symmetrical.

4. The poke-in connector for a printed circuit board according to one of the preceding claims, wherein the housing is constructed to comprise two parts.

5. Connection module (30) comprising a housing (31) and at least one printed circuit board (10), which is mounted in the housing (31), onto which printed circuit board (10) a plug-in connector (1) according to one of claims 1 to 4 is plugged, and onto which plug-in connector (1) for a printed circuit board an additional printed circuit board (11) comprising connection elements (23, 35, 36) for cables or leads is plugged.

6. Connection module according to claim 5, wherein the additional printed circuit boards (11) comprising the connection elements (23, 35, 36) are arranged in a separate housing (24).

7. Connection module according to claim 6, wherein the separate housing (24) comprises a cylindrical receptacle (25) on each side.

8. The connection module according to claim 7, wherein a screw is provided in the cylindrical receptacle (25) and is screwed into an internal thread (29) of a second screw (26) which is screwed into a housing (31) of the connection module (30).