HK1105048B - Plug-in adapter - Google Patents

Description

Plug-in adapter

Technical Field

The invention relates to a plug-in adapter (Steckadapter) for establishing an electrical connection between the contacts of a plug fixed to the end of a cable and the contact faces of a patch panel (Steckfeld) constructed on the edge of a printed circuit board.

Background

In order to connect a cable, to the end of which a plug is fixed, with a printed circuit in an electronic device, different contact-making devices are known. If individual lines of plugs or cables of different designs are to be connected directly, the connector has to be carried out correspondingly many times on the printed circuit board.

When connecting telecommunications devices to public telephone networks, it can happen that, depending on the field situation, the connection is made via a plug connector of the type RJ-45 or via a screw terminal, in which case the individual conductors of the connecting cable are to be connected directly to the contact surfaces of the printed circuit board, in which case an RJ-45 terminal block and a screw terminal have to be provided on the printed circuit board side. It is also often necessary in ISDN communication systems to reconfigure the field connection between a so-called external S0 port (digital outside line (amtsanscheluss)) and an internal S0 bus. Here, two of the four connecting wires are crossed, respectively. The crossing can be effected by multiple plug connections arranged on the printed circuit board or in the field by manual reconfiguration of the respective contact-making devices. It is expensive to implement the printed circuit board as a multiple plug connection, from which only certain parts are actually used for the connection. Manual reconfiguration of the equipment in the field may cause failure.

Disclosure of Invention

The object of the invention is to create a plug-in adapter by means of which plugs of different designs can be connected to contact surfaces which are led out on a patch panel on the edge of a printed circuit board.

The solution of this task is achieved by a plug-in adapter having the technical features according to the invention. The dependent claims relate to advantageous developments of the invention.

According to the invention, a plug-in adapter is mounted on a patch panel of a printed circuit board, comprising a base body in which a first receiving cylinder (Aufnahmeschacht) is provided, which is designed to receive a plug in an insertable manner, and a second receiving cylinder of the patch panel, which is designed to receive the printed circuit board in an insertable manner. A contact body is disposed in each containment cylinder. The corresponding contact bodies in the receiving cylinder are electrically connected by a connecting element arranged in the base body. According to an embodiment of the first receiving sleeve, the patch panel of the printed circuit board can be connected to cable plugs of different designs. With a corresponding embodiment of the card adapter, the connection can be implemented according to a predetermined connection diagram (kontaktb elegoung), i.e. the connection is also implemented with crossing connection lines. The card adapter in the embodiment with crossing connecting wires can be characterized by a color, whereby the wiring diagram can be easily recognized from the outside.

The invention relates to a plug-in adapter for producing an electrical connection between the contacts of a plug (28) which is fastened to the end of a cable (27) and the contact surfaces (15) of a patch panel (23) which is formed on the edge of a printed circuit board (14). The plug-in adapter has a base body (2). The base body (2) is composed of a first part (9) and a second part (10). A first receiving cylinder (3) for the insertable reception of the plug (28) is formed in the first part (9). A second receiving cylinder (4) for the insertable reception of the patch panel (23) is formed in the second part (10). Wherein in the engaged state the first part (9) is connected to the second part (10) by means of a locating connection (12, 13). The plug-in adapter has contacts (6, 7) in the first and second receiving cylinders, wherein an electrical connection is established between the corresponding contacts by a connecting element (5) present in the base body. Each connecting element (5) has a first intermediate contact (19) and a second intermediate contact (20), and the intermediate contacts (19, 20) are held in contact in the engaged state by means of positioning connections (12, 13).

In a preferred embodiment, the plug-in adapter consists of two parts which can be produced by a die-casting tool of comparatively simple construction. In this case, the base body of the plug-in adapter consists of a first part in which the first receiving cylinder is formed and of a second part in which the second receiving cylinder is formed. In conventional applications, the two parts are held in close proximity by a positioning device (Rastmittel). In this design, the connecting element is also constructed in two parts and consists of a first intermediate contact and a second intermediate contact, respectively, wherein the corresponding contacts in the joined state are held in contact by the positioning connection.

A configuration which is advantageous in terms of connection technology is characterized in that the plug-in opening of the first receiving cylinder and the plug-in opening of the second receiving cylinder are each arranged on opposite sides of the cuboid plug-in adapter.

In a preferred embodiment, the RJ is designed to be compatible with the first receiving cylinder. The second receiving sleeve has a cuboid interior which is designed to receive the patch panel in an insertable manner and has fork-shaped contact springs which are arranged next to one another and extend in the insertion direction.

In a further development of the invention, it is preferred that a plurality of grooves are formed on the inner wall surface lying in a plane facing the patch panel. Each groove constitutes a compartment (Abteil) of a leg of the contact spring. Thereby preventing contact between adjacent contact springs when inserted into a patch panel.

It is advantageous if the contact spring is designed in terms of material and shape such that the patch panel between the legs of the contact spring is held in the pushed-in position by the spring force. Thereby frictionally securing the card adapter to the printed circuit board.

In order to achieve a particularly stable fixing of the card adapter on the printed circuit board, it is advantageous if the slot bridge (Nutsteg) between the slots is designed such that the bridge surface (stegfliache) lying towards the printed circuit board is conically configured in the insertion direction.

A particularly preferred embodiment of the invention is characterized in that the first receiving chamber is designed as a 4-pole socket, wherein two adjacent contact tongues are connected by a cross to a corresponding contact spring in the second receiving cylinder.

The two parts of the base body are preferably manufactured by die casting from a flame-retardant polymeric material in a die casting technique.

For mass production, it may also be advantageous if the base body is produced from plastic in one step by means of a correspondingly configured die-casting tool, wherein each connecting element likewise consists of an integral stamped and bent part.

In order to achieve a particularly reliable contact, it is advantageous if the contact spring is coated with a corrosion-resistant metal coating, particularly preferably with a gold alloy.

Drawings

The invention is elucidated below by way of example with reference to the accompanying drawings. Wherein:

fig. 1 shows a general perspective view of a printed circuit board with a patch panel which can be connected alternatively to the wires of a cable by means of screw clamps or to a plug fixed on the end of the cable by means of a plug-in adapter according to the invention;

fig. 2 shows a perspective view of a first embodiment of the plug-in adapter of the invention, seen in the viewing direction of the first cartridge;

fig. 3 shows a perspective view of the first embodiment in the viewing direction of the second cartridge;

fig. 4 shows a perspective view of the first embodiment in a view obliquely below the middle contact of the first part, in which the first part is shown removed from the second part;

fig. 5 shows a perspective view of the first embodiment in a view obliquely above the center contact of the second part, in which the first part is likewise shown removed from the second part;

fig. 6 shows a circuit diagram of a connection diagram of a 4-pole card adapter according to the invention, in which two adjacent connecting lines are crossed.

Detailed Description

The printed circuit board 14, on the edge 18 of which printed circuit board 14 a patch panel 23 is formed, is to be seen in a perspective view in fig. 1. The conductor tracks are led into the patch panel 23 and there end in parallel adjacent contact surfaces 15. The patch panel 23 is laterally limited by the gap 16 and ends flush with the printed circuit board edge 17 on the end face. In order to connect the cable 27, to which the plug 28 is fixed at its end, with the printed circuit board 14, the plug 28 of the cable 27 is inserted into the first receiving cylinder 3 (fig. 2) of the plug-in adapter 1 of the invention and the patch panel 23 is inserted into the second receiving cylinder 4 (fig. 1). The two receiving cylinders 3 and 4 are located on opposite sides of the cuboid plug-in adapter 1. The electrical connection between the contacts 30 of the plug 28 and the contact surfaces 15 of the printed circuit board 14 is realized by means of connecting elements arranged in the base body of the plug-in adapter 1. Embodiments of the connecting element are discussed in further detail below. If the individual wires 29 of the cable 27 are to be connected to the patch panel 23 of the printed circuit board 14, this can be done in a conventional manner by means of screw clamps 24. Such a screw clamp 24 is shown in dashed lines in the illustration of fig. 1. The screw clamp 24 likewise has a receiving cylinder into which the patch panel 23 is pushed according to the arrow 22. The patch panel 23 can thus alternatively be connected to the cable 27 either by an insertable connection (plug-in adapter 1 and plug 28) or directly by a terminal connection (screw clamp 24 and wires 29).

Fig. 2 to 5 show a first embodiment of the plug-in adapter 1 according to the invention in detail in a 4-pole embodiment. The card adapter 1 consists of two parts, namely a first part 9 and a second part 10. The two parts 9 and 10 form a cuboid base body 2. Fig. 2 shows a perspective view of the first receiving cylinder 3, which first receiving cylinder 3 is designed according to the standard IEC 603-7, i.e. in order to contact the contacts 30 of the plug 28, the contact body is formed by four parallel contact tongues 6, which contact tongues 6 extend in the receiving cylinder 3 approximately in a diagonal direction.

Fig. 3 shows the card adapter 1 in a view from above of the second receiving space 4. The second receiving space 4 is formed in the second part 10 of the base body and has a substantially cuboid interior. The inner surface of the cavity parallel to the plane of the printed circuit board is provided with a plurality of grooves 8. These grooves 8 are parallel to each other and extend in the insertion direction 22. Between the grooves 8, groove bridges 11 can be seen, which groove bridges 11 are relatively upright in the interior in a comb-like manner. The pairs of opposite grooves 8 each form an accommodation space for the contact spring 7. The contact spring 7 is fork-shaped. The opposite grooves 8 respectively constitute compartments for the legs 32 of the contact spring 7.

Fig. 4 and 5 show a first embodiment of the plug-in adapter 1 according to the invention in a perspective view in which the two parts 9 and 10 are shown separately. As can be seen from fig. 4, the contact bodies in the first receiving chamber 3 are each continuous with the upper intermediate contact 19. Similarly, the contact spring 7 in the second receiving cylinder 4 is also formed relative to the lower intermediate contact piece 20. If the upper part 9 is now fitted to the lower part 10 in the direction of the arrow 25, the positioning element 12 snaps into the corresponding positioning hole 13 of the upper part 9, whereby the corresponding intermediate contact 19 or 20 is held snug.

As already described above, the opposing groove bridge surfaces 26 (viewed in the insertion direction 22) can also run conically here for improved mechanical support.

Fig. 6 shows a circuit diagram of the invention, as is particularly preferably used when connecting telecommunications devices. The figure schematically shows a card connector 1, the plug-side receiving space 4 of which card connector 1 is designed to receive a 4-pole RJ-compatible plug. As already mentioned above, when connecting telecommunications devices, the problem often arises that the printed circuit board connection must be designed as a plug connection or a terminal connection, but must also be configured accordingly both for the external S0 and for the internal S0, i.e. adjacent lines must cross. In the present embodiment, this is solved in that two adjacent connecting elements 5 are each formed by crossing in the plug-in adapter 1 according to the invention. As can be seen from the circuit diagram in fig. 6, the contact tongues 61 of the first receiving chamber 3 are not connected to corresponding contact tongues 61 'of the patch panel 23 of the printed circuit board 14, but are connected to the contact surfaces 51'; likewise, the contact tongues 51 are not connected to the corresponding contact surface 51 ', but are connected to the contact surface 61' by an intersection. In this case, it is particularly advantageous if the plug-in adapter 1 is identifiable from the outside (for example by a colored marking) depending on whether the connecting elements 5 are embodied crosswise or not.

Arrangement of applied reference symbols

1 plug-in adapter

2 base body

3 first containing cylinder

4 second containing cylinder

5 connecting element

6 contact reed

7 contact spring

8 groove

9 upper part, first part of the base body

10 lower part, second part of the base body

11-groove bridge frame

12 positioning element

13 positioning hole

14 printed circuit board

15 contact surface

16 gaps

17 edge of printed circuit board

18 edge of printed circuit board

19 first (upper) intermediate contact

20 second (lower) intermediate contact

21 push-in direction of plug

22 push-in direction of a patch panel

23 Patch panel

24 screw binding clip

25 arrow head

26 groove bridge deck

27 electric cable

28 plug

29 conducting wire

30 contact

31. 41, 51, 61, 31 ', 41', 51 ', 61' contact

32 feet

Claims (11)

1. Plug-in adapter for establishing an electrical connection between contacts of a plug (28) fixed on the end of a cable (27) and contact surfaces (15) of a patch panel (23) configured on the edge of a printed circuit board (14),

the plug-in adapter has a base body (2), the base body (2) being composed of a first part (9) and a second part (10), a first receiving cylinder (3) for the insertable reception of the plug (28) being formed in the first part (9), a second receiving cylinder (4) for the insertable reception of the patch panel (23) being formed in the second part (10), wherein in the engaged state the first part (9) is connected to the second part (10) by means of a positioning connection (12, 13),

the plug-in adapter has contacts (6, 7) in the first and second receiving cylinders, wherein an electrical connection is established between the corresponding contacts by a connecting element (5) present in the base body,

it is characterized in that the preparation method is characterized in that,

-each connecting element (5) has a first intermediate contact (19) and a second intermediate contact (20), and the intermediate contacts (19, 20) are kept in contact by the positioning connections (12, 13) in the engaged state.

2. The card adapter as claimed in claim 1, characterized in that the plug-in openings of the first and second receiving cylinders (3, 4) are arranged on opposite sides of the cuboid.

3. Plug-in adapter according to claim 1 or 2, characterized in that the first receiving cylinder (3) is of RJ-compatible design, and the second receiving cylinder (4) has a cuboid-shaped interior in which, for the insertable reception of the patch panel, adjacently arranged fork-shaped contact springs (7) extending in the plug-in direction (22) are provided.

4. Card adapter as claimed in claim 3, characterized in that a plurality of grooves (8) are formed in the inner wall surface directed towards the printed circuit board surface, in which grooves the contact springs (7) are arranged, wherein each groove (8) constitutes a separation of the legs (32) of the contact springs (7).

5. Plug-in adapter according to claim 4, characterized in that each contact spring (7) is constructed such that the patch panel (23) is held in the pushed-in position by means of a spring force between the legs (32) of the contact spring.

6. Plug-in adapter as claimed in claim 5, characterized in that the slot bridge (11) between the slots (8) is conically formed on its slot bridge surface (31) pointing towards the printed circuit board surface, as seen in the plug-in direction (22).

7. Plug-in adapter as claimed in claim 6, characterized in that four contact tongues (6) are arranged in the first receiving chamber (3) and the layout of the connecting elements (5) in the base body is selected such that two adjacent contact tongues (61, 51; 41, 31) are connected with two corresponding contact springs (61 ', 51'; 41 ', 31') by crossing.

8. The card adapter as claimed in claim 1, characterized in that the first and second parts (9, 10) of the base body (2) are manufactured from a fire-resistant, polymeric material by means of a die-casting technique.

9. Plug-in adapter according to claim 3, characterized in that the contact spring (7) is coated with a corrosion-resistant coating.

10. The card adapter of claim 9 wherein said corrosion resistant coating is a gold alloy.

11. Card adapter according to claim 1, characterized in that each connecting element (5) is manufactured as a stamped and bent piece.