KR100856590B1 - Circuit board plug and socket device - Google Patents

Abstract

A circuit board plug-and-socket device is disclosed for coupling connection reels of a male connector to strip conductors of a printed circuit board. The circuit board plug-and-socket device is characterized by the following features:

a) the male connector 3 comprises contact elements 11, 12, 13, 14 connected to the connection leads 26,

b) a pin board 4 is implemented on one edge 24 of the circuit board 2 for plugging into the male connector 3,

c) the pin board 4 comprises contact regions 5, 6, 7, 8, 9, 10, through which the strip conductors 31, 32, 33, 34 are connected at an edge ( 24 are provided with strip conductors leaded on and led through one contact region and strip conductors guided through at least two contact regions,

d) a coding guide defining at least one additional plug-in position and a first plug-in position which are laterally offset by a distance 25 on one plane of the circuit board 2 with the male connector 3; Configured between the pin boards 4, different contact areas are assigned to the contact elements at the first plug-in position and at least one additional plug-in position.

Description

Circuit Board Plug and Socket Device {CIRCUIT BOARD PLUG-AND-SOCKET DEVICE}

The present invention relates to a circuit board plug-and-socket device for connecting connection leads of socket-type connectors to printed conductors of a circuit board.

Several direct plug-in devices are known for connecting the leads of the connecting cable to the printed conductors on the circuit board. The devices often consist of a strip-shaped socket-type connector, which is plugged into a connector board embodied at the edge of the circuit board and the printed conductors represent through contact areas.

This type of integrated circuit board plug-in device is also used to connect telecommunication systems, where an external ISDN exchange or internal S0 device may need to be connected to the S0 port of the ISDN system when the ISDN system is connected. . All of these connection configurations are described in "the Service Manual for the ISDN telecommunication system of type HiPath 3000/5000 V4.0". All of the connections require a change to a four-wire SO interface, and the connection leads are connected end-to-end on the one hand and crossed in pairs on the other. The connection leads had to be crossed manually by now, ie the housing cover had to be removed locally on the system and the SR and SX wires had to be crossed manually at the connection socket. Manually crossing leads is not only time consuming, but it can also cause errors.

DIL switches and multiple plug-in devices are known for changing the terminal assignment scheme of circuit board plug-and-socket devices.

Other possible solutions are provided through specially designed contact devices. The contact devices consist of a connector board embodied at the edge of the circuit board, on which a plug-in female connector is plugged. The required terminal assignment scheme of the circuit board plug-and-socket device is predetermined by the connection layout on the circuit board. Contact devices of this type are known, for example, from the published patent application DE 103 17 588 of the applicant.

A four-wire ISDN interface circuit is known from DE 198 199 06 A1 in which switching between internal and external operation is automatically performed by electronic switches.

Changing the terminal assignment scheme of plug-in devices is known in the art, but there is always a rather significant cost for additional structural components. Efforts should be made to minimize the cost for additional structural components.

It is an object of the present invention to provide a circuit board plug-and-socket device for connecting the connection leads of socket-type connectors to the printed conductors of the circuit board, in which case the terminal assignment scheme is simple and low fabrication. It can be changed at cost.

This object is creatively achieved by a circuit board plug-and-socket device of the type described in the introduction with the following features:

The socket-type connector includes contact elements connected to the connection leads,

The connector board is implemented on one edge of the circuit board to engage the socket-type connector in a pluggable manner,

The connector board comprises contact areas, through which printed conductors are guided on an edge, printed conductors guided through one contact area and printed conductors guided through at least two contact areas. Provided,

Coding guides are provided between the socket-type connector and the connector board that define a first plug-in position and one or more additional plug-in positions that are laterally offset by a distance on one plane of the circuit board, with different contact areas being provided. It is assigned to a contact element at one plug-in position and at least one additional plug-in position.

The main advantage of the present invention is that the terminal assignment scheme can be simply changed by replugging the socket-type connector laterally. At least two slots are provided on the connector board for the socket-type connector. Each slot is defined by a mechanical coding guide in a key-lock configuration, ie only certain plug-in positions are allowed on the connector board. Coding guides are created by positive locking between the socket-type connector and the connector board. The connection layout connects the leads on the circuit board to the contact areas on the connector board in a manner that allows printed conductors and connection leads to be assigned in a predetermined manner. In other words, the connection layout forms different connection possibilities between the printed conductors and the connection leads. Only replug operation is needed to change the terminal allocation scheme, and no additional structural components such as DIL switches or special coding devices are needed. Effort required for connection layout and mechanical coding is relatively low, and the possibility of changing the terminal assignment scheme can be implemented in a simple manner. No cost will be incurred for additional structural components. The production cost will be lower.

Advantageous embodiments of the invention are described in the dependent claims.

A preferred embodiment of the invention is characterized in that the coding guide is formed by a coding bar implemented in the receiving slot of the socket-type connector and operating in concert with corresponding coding recesses in the connector board. Each of the allowed plug-in positions corresponds to a terminal assignment scheme for tapping electronic signals routed to contact regions on the connector board.

In the case of an ISDN connector, the circuit board plug-and-socket device is characterized in the preferred embodiment as follows: The connector board has six contact areas. Of these, the first contact region is connected to the first printed conductor and the second contact region is connected to the second printed conductor. A pair of contact regions adjacent to the first contact region are connected to the third printed conductor, and a pair of contact regions adjacent to the second contact region are connected to the fourth printed conductor. On both sides in contact with the first contact area a coding recess is implemented in which case the coding bar is inserted. Thereby, the two plug-in positions are coded in the connector board, which results in an end-to-end connection or a connection crossing in pairs. Thus, to change the terminal allocation scheme, it is only necessary that the socket-type connector is replugged between the first and second slots. Thus, the SO port of the ISDN connector can be reconfigured in a simple manner between the ISDN switched connection and the ISDN device connection. No manual crossover of the connection leads is required. Technical implementation is economical. Socket-type connectors are preferably produced by plastic injection molding. The coding bar can be produced in a simple manner while the socket-type connector is injection molded. Coding recesses of the connector board can be created simply by milling the circuit board.

The narrow width of the socket-type connector can be achieved by implementing the contact areas, coding the recesses in a rectangular shape and placing them in a connector board which is oriented parallel to each other in the plugging direction.

It is advantageous for the coding bar to connect the opposing wide surfaces of the receiving slots. In addition to mechanical coding, the coding bar will also function simultaneously as a bracing means in the receiving slot. The walls of the receiving slot can be implemented very thinly, thus requiring less material in manufacturing.

In order to make it as easy as possible to insert the coding bar into the coding recess, when the socket-type connector is plugged in, it is advantageous for the coding bar to be led up to the opening plane of the receiving slot. When the coding recesses are implemented as long holes, the dimensions can be advantageously selected so that the termination surface located in the open face of the socket-type connector forms a stop surface upon insertion. No electrical contact will be formed between the contact elements and the contact regions until the socket-type connector is correctly installed in the selected insertion position.

In a particularly preferred embodiment of the invention, the receiving slot is provided wider than the connector board. Its dimensions are selected such that in the plug-in position the inner side surface of the receiving slot is positioned opposite to the facing side surface of the connector board.

In order to connect the connection leads already attached to the RJ45 type plug to the socket-type connector, the invention in its variant has its own connection leads at the back of the socket-type connector facing away from the opening of the receiving slot. It has a Mini-Western socket (according to DIN EN 60603-7) to which the Mini-Western plug can be plugged. Here, the socket-type connector forms an adapter, the terminal allocation scheme of which can be simply changed by replugging between the first and second plug-in positions on the connector board.

In order to connect the connection leads directly to the socket-type connector, in another variant, terminal screws are provided on the socket-type connector.

It is advantageous for the contact elements to be implemented with fork-shaped contact springs in connection with the mechanical properties and the contact properties of the socket-type connector on the connector board. In the plugged-in position, the contact springs will eventually surround the outer edge of the connector board and support the socket-type connector by elastic force.

In order to further improve and maintain the contact properties for as long as possible, it may be advantageous for the contact springs and / or contact areas to be preferably provided with an anticorrosion coating, especially with a coating of gold or gold alloy.

A fire retardant polymeric material is preferably used as the material for the socket-type connector. It can advantageously be mass-produced using plastic injection molding.

The circuit board plug-and-socket device of the present invention is advantageously applied in the case of an ISDN telecommunication system to set up a SO port for connecting one of (external) digital switching or (internal) ISDN terminals.

It is advantageous for the first and second coding recesses to be spaced apart so as to have a contact space while adjoining the first contact region. Asymmetrical devices of this type will ensure that the socket-type connector cannot be plugged into the connector board in a rotated position by 180 degrees.

In the following description, the invention will be described with reference to the drawings, in which advantageous embodiments, details, and improvements of the invention can be identified through an illustrative embodiment described.

1 shows a circuit board plug-and-socket device of the present invention having a socket-type connector prior to being inserted into a first plug-in position.

2 shows a circuit board plug-and-socket device of the present invention having a socket-type connector before being inserted into a second plug-in position;

3 is a cross-sectional view of a socket-type connector plugged into a connector board having a connecting cable connected via an RJ45 connection.

1 and 2 show an exemplary embodiment of the circuit board plug-and-socket device of the present invention with reference numeral 1 used, for example, in the case of an ISDN telecommunication system for configuring a terminal assignment scheme of an ISDN terminal connection. .

The three-dimensional illustration of FIGS. 1 and 2 shows a strip-type socket-type connector 3 in each case occupying a position before being plugged into the connector board 4 of the circuit board 2. . To the socket-type connector 3 is attached a connecting cable 20 with connecting leads 26. The socket-type connector 3 has a cubic accommodating slot 15 in which four contact elements 11, 12, 13, 14 can be identified. A coding bar 23 extending between the opposing wide sides of the accommodating slot 15 is additionally implemented in the accommodating slot 15. In one example of application to the illustrated ISDN terminal connection, six contact areas 5, 5, on the connector board 4 opposite the four contact elements 11, 12, 13, 14 of the socket-type connector 3 are provided. 6, 7, 8, 9, 10) and the contact regions are arranged side by side.

The connector board 4 protrudes in the shape of a tongue from the edge 24 of the circuit board 2. The contact regions 5, 6, 7, 8, 9, 10 are embodied in rectangles and are connected to the four printed conductors 31, 32, 33, 34 of the circuit board 2.

The connector board 4 is additionally provided with two coding recesses 21 and 22. The coding recesses 21 and 22 are spaced apart by a distance 25 and are produced by milling on the connector board 4. The coding recesses are provided on both sides of the contact area 9 and extend parallel to them. The coding recesses form a key groove for the coding bar 23.

The selected asymmetrical arrangement of the coding bar 23 and the coding recesses 21, 22 prevents the socket-type connector 3 from being plugged in in a rotated position by 180 degrees.

1 shows that the coding bar 23 is inserted into the first coding recess 21 at the insertion position. FIG. 2, in contrast, shows that the second insertion position is arranged on the left side in the transverse direction. The coding bar 23 is here located opposite the second coding recess 22. Coding bar 23 has a width of 0.7 mm. The first and second coding recesses 21, 22 are slightly wider than the coding bar, so that the socket-type connector 3 can be easily plugged into the connector board 4 manually. The two coding recesses 21 and 22 and the contact regions 5, 6, 7, 8, 9, 10 are in space in each case to have a contact space (1.27 to 3.5 mm). Contact areas 5, 6, 7, 8, 9, 10 are guided to the top surface of the printed conductor in the exemplary embodiment shown, but it is envisioned that the contact areas are guided to the top and / or bottom surfaces. Can be.

The connection between the contact areas 5, 6, 7, 8, 9, 10 and the printed conductors 31, 32, 33, 34 is predetermined by the connection layout on the circuit board 2. As can be seen from FIGS. 1 and 2, the contact area 6 is in this case connected to the conductor 31 (ISDN signal SX2) printed only by the connection layout 30 and to the contact area 9. Connected to the printed conductor 33 (ISDN signal SX1) only. In contrast, a printed conductor 32 conducting the ISDN signal SR2 is led to the connector board 4 by two contact regions 5 and 7. The printed conductor 34, which conducts the ISDN signal SR1, is also induced twice in the connector board 4, in particular by a connection to the contact region 8 and by a connection to the contact region 10. That is, there are contact regions in the connector mode which are connected only to one printed conductor (contact regions 6 and 9), on the other hand, in each case two contact regions 5 and 7, or Thus there are printed conductors 32 and 34 which terminate at connector board 4 at 8 and 10. As a result of such an arrangement, the ISDN signals SX1 and SX2 can in each case be tapped in one contact area, while the ISDN signals SR1, or in some cases SR2, are in each case a connector board. It can be tapped in two contact areas in (4).

In this example, this means that if either an external ISDN exchange or an internal S0 device is connected to the S0 port of the communication system, then the necessary intersection of the connection leads in pairs is placed in the first coding recess 21 or transversely. It can be achieved by plugging the socket-type connector 3 through the coding bar 23 into the second coding recess 22 to be. Arrow 29 represents the plugging direction in FIGS. 1 and 2.

The allocation between the contact elements and the ISDN signals is as follows:

In the first plug-in position, the coding bar 23 is inserted into the first coding recess 21 (FIG. 1).

Contact elements Contact area ISDN signal 11 6 SX2 12 7 SR2 13 9 SX1 14 10 SR1

In the second plug-in position, the coding bar 23 is inserted into the second coding recess 22 (FIG. 2).

Contact elements Contact area ISDN signal 11 5 SR2 12 6 SX2 13 8 SR1 14 9 SX1

As can be seen by comparing the two tables, the ISDN signal tapped by the contact elements 11, 12, 13, 14 of the socket-type connector 3 intersects in pairs at the respective plug-in positions. This is equivalent to manually changing the connecting wires.

Since the socket-type connector 3 can be plugged into the connector board 4 only in the first plug-in position or in some cases in the second plug-in position, it may occur when the connecting wires are changed manually. Errors during the configuration of an ISDN connection such as are avoided.

As shown in FIGS. 1 and 2, the cubic accommodating slots 15 of the socket-type connector 3 have side walls 16 and 17. The receiving slot 15 is wider than the connector board 4. The coding bar 23 divides the accommodating slot 15 asymmetrically-when viewed in the viewing direction-into a larger left partial slot and a smaller right partial slot. Contact elements 11, 12 and 13 are located in the left partial slot. One contact space between the contact elements 12 and 13 is empty and an outer space in contact with the inner surface 16 or in some cases the inner surface 17 is empty in each partial slot. The contact elements 11, 12 and 13, 14 as well as the contact regions 5, 6, 7, 8, 9, 10 and the coding recesses 21, 22 are in each case a constant distance 25. They are arranged side by side to be spaced apart from each other by (contact space).

In the first insertion position shown in FIG. 1, the inner side 16 aligns with the corresponding side surface 18 of the connector board 4. Its dimensions are selected in such a way that the surface 16 is positioned against the surface 18 during the plugging operation (arrow 29). It will create additional guiding during insertion. The same applies to the second insertion position shown in FIG. 2. Upon insertion into this slot, the side surface 17 on the right side of the socket-type connector 3 will be positioned against the side surface 19 of the connector board 4 when viewed in the viewing direction. Positioning surfaces 17 and 19 abut one another will also provide additional guiding here.

Coding bar 23 has a termination surface 35 flush with the opening face of receiving slot 15. The depth of the coding recess 21 or in some cases the recess 22 is dimensioned in such a way that the termination surface 35 functions as a stop during insertion.

The connection leads 26 of the cable 2 can be pluggable or permanently connected to the socket-type connector 3. 3 shows the connection of the connection cable 20 via the RJ45 plug connector 27 in the first variant. In the second modification shown in FIG. 4, the connection is formed by the terminal screws 28. The plug connector 27 or, in some cases, the terminal screw 28 is embodied in each case on the side of the socket-type connector 3 facing away from the receiving slot 15. As can be seen from the cross section, the contact elements are implemented in a fork-shaped.

The mechanical codings 23, 21, 22 can of course also be implemented using differently implemented forms in pairs between the connector board 4 and the receiving slot 15. For example, the coding recesses may be formed through grooves implemented in the connector board and directed in the plugging direction 29. Instead of the coding bar 23, a coding strip projecting from the receiving slot in the direction of the connector board or a means implemented according to a similar suitable coding solution will engage the grooves.

Reference number used

1 circuit board plug-and-socket device

2 circuit board

3 socket-type connector

4 connector board

5,6,7,8,9,10 contact areas

11,12,13,14 contact elements

15 accommodating slots

16 15 side surfaces

Side surface of 17 15

Side surface of 18 4

Side surface of 19 4

20 connection cables

21st coding recess

22 second coding recess

23 coding bar

24 2 edges

25 Between 21 and 22

26 20 connection leads

27 RJ45 plug

28 terminal screw

29 Arrows indicating the plugging direction

30 connections layout

31 2nd printed conductor

32 4th printed conductor

33 1st printed conductor

34 3rd printed conductor

35 termination surface

Claims (15)

A circuit board plug-and-socket device for connecting connection leads of socket-type connectors to printed conductors of a circuit board, comprising: a) the socket-type connector 3 comprises contact elements 11, 12, 13, 14 connected to the connection leads 26, b) the connector board 4 is embodied on one edge 24 of the circuit board 2 for engaging the socket-type connector 3 in a pluggable manner, c) The connector board 4 comprises contact regions 5, 6, 7, 8, 9, 10, and the conductors 31, 32, 33, 34 printed through the contact regions have an edge ( 24) printed conductors guided on and guided through one contact area and printed conductors guided through two or more contact areas are provided, d) a coding guide for positioning the first plug-in position and one or more additional plug-in positions which are laterally offset by a distance 25 on one plane of the circuit board 2 with the socket-type connector 3; Implemented between the connector boards 4, characterized in that different contact areas are assigned to the contact elements in the first plug-in position and the one or more additional plug-in positions, Circuit board plug-and-socket device. The method according to claim 1, wherein the coding guide is formed by a coding bar 23, which is embodied in the receiving slot 15 of the socket-type connector 3. A circuit board plug-and-socket device, characterized in that it can be inserted into a first coding recess (21) or a second coding recess (22). The method of claim 2, The connector board 4 has six equidistantly spaced contact regions 5, 6, 7, 8, 9, 10, of which the first contact region 9 is the first printed conductor 33. Connected to the second contact region 6 is connected to the second printed conductor 31, and the first pair of contact regions 8, 10 adjacent to the first contact region 9 is connected to a third one. Connected to a printed conductor 34, a second pair of contact regions 5, 7 adjacent to the second contact region 6 are connected to a fourth printed conductor 32, The first coding recess 21 is implemented between the first contact region 9 and the adjacent contact region 10, and the second coding recess 22 is the first contact region 9 and the adjacent contact region. (8) is implemented between The four contact elements 11, 12, 13, 14 are electrically connected between the printed conductors 31, 32, 33, 34 and the connection leads 26 intersected in pairs with the first and the second. A circuit board plug-and-socket device, which is characterized in that it is arranged in the receiving slot (15) in such a way that it can be produced by replugging a socket-type connector (3) between coding recesses. The contact regions 5, 6, 7, 8, 9, 10 and the first and second coding recesses 21, 22 are embodied in a rectangular shape. A circuit board plug-and-socket device, characterized in that it is arranged oriented parallel to each other in the plugging direction (29). 4. Circuit board plug-and-socket device according to claim 2 or 3, characterized in that the coding bar (23) connects the opposing wide surfaces of the receiving slots (15). 4. The end surface 35 of claim 2, wherein the end surface 35 of the coding bar 23 is flush with the opening face of the receiving slot 15, so that the end surface 35 is inserted during insertion. A circuit board plug-and-socket device, characterized in that it forms a stop in a coding recess (21, 22) that is implemented as a long hole. The inner side according to claim 2 or 3, wherein the receiving slot (15) is in a plug-in position in each case to be positioned against the respective adjacent side surfaces (18, 19) of the connector board (4). Circuit board plug-and-socket device, characterized in that it has surfaces (16, 17). 4. The mini-assembly according to any one of claims 1 to 3, wherein the connecting leads (26) engage in a pluggable manner with a Mini-Western socket (RJ46 socket) implemented on a socket-type connector (3). A circuit board plug-and-socket device, which is attached to a Western plug (27). 4. The circuit board plug-according to claim 1, characterized in that the socket-type connector 3 has terminal screws 28 to which the connection leads 26 are to be attached. And a socket device. The contact elements 11, 12, 13, 14 according to claim 1, wherein the contact elements 11, 12, 13, 14 are arranged in contact regions 5, 6, 7, 8, by elastic force in a plug-in position. A circuit board plug-and-socket device, characterized in that it is embodied as fork-shaped contact springs carried on 9, 10. The contact elements (11, 12, 13, 14) or the contact regions (5, 6, 7, 8, 9, 10), or the contact element (1) according to any one of the preceding claims. (11, 12, 13, 14) and the contact areas (5, 6, 7, 8, 9, 10) are characterized in that they are coated with an anti-corrosion coating. 4. The circuit board plug-and-socket according to claim 1, wherein the socket-type connector 3 is produced using plastic injection molding from a fire-retardant polymeric material. Device. 4. The signal according to claim 1, wherein signals of ISDN SO interface SX1, SX2, SR1, SR2 are routed to the contact areas 5, 6, 7, 8, 9, 10. Circuit board plug-and-socket device. The contact regions 5, 6, 7, 8, 9 and 10, the contact elements 11 and 12, and the contact elements 13, according to claim 1. 14) circuit board plug-and-socket device, as well as characterized in that the coding recesses (21, 22) are spaced apart in each case to have contact space. The method of claim 11, Wherein said anticorrosion coating comprises a coating of a gold alloy.

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