EP2983255A1 - Jack for telecommunication and/or data transmission systems - Google Patents

Abstract

The invention relates to a socket (1) for data transmission systems with a socket housing (2) having a first printed circuit board (3) with connection means (4) for electrical conductors, a plug-in opening (5) for a plug (6), a flexible, second printed circuit board ( 7) with isolated conductor track sections which form contact areas for the contacts of a plug (6), wherein the second end area (11) of the printed circuit board (7) is bent over and ends have isolated track sections (8) which project into the plug opening (5), the second end region (11) is supported by a support part (13) which has fingers (14) on which the conductor track sections (8) rest and to which they are fixed, the support part (13) being arranged in the housing in a contact carrier (16 ) is pivotally limited, wherein between a housing part and the contact carrier (16) one end (18) of a leaf spring (19) is fixed, which merges via a bend (21) in spring fingers (22) , which rest against the fingers (14).

Description

The invention relates to a socket for telecommunications and / or data transmission systems with a female housing made of metal, a fixed therein first circuit board with connection means for electrical conductors, which are accessible from a bottom surface of the housing, a plug-in opening for a communicating with the socket connector, a flexible, second printed circuit board with separated from these trace sections forming contact areas for the contacts of a plug and which is fixed to the first circuit board and contacted with the contact paths, wherein the conductor track sections are resiliently supported by arranged in the housing spring means and support means, wherein the flexible second printed circuit board with a first end region rests against the first printed circuit board and is contacted with the conductor tracks.

Such a socket is in a similar form from the DE 10 2004 011 358 B4 known.

In the known socket, a flexible circuit board is combined with a rigidly formed printed circuit board. The flexible circuit board has two end regions, which are fixed on the one hand to the circuit board and on the other hand to the socket. Between these ends, a central region is formed as a contact region, which forms a family of mutually parallel exposed conductor track sections, which are laterally spaced from each other. These form the mechanical connection between the two end parts and make the contacts with a plug inserted into the socket.

In the case of the corresponding socket, the area with the individual conductor track sections for contacting the contacts of a plug inserted into the socket is supported by disc-shaped guide and positioning elements, on each of which a corresponding track section of the family of track sections is supported. The conductor track sections are additionally separated from one another by these elements. The guide elements are attached via a resilient support arm on the cover of the socket, in addition, a leaf spring is provided as a supporting and resilient element.

In this embodiment, the contact point of the isolated conductor track sections with the corresponding contacts of the plug is relatively far from the end of the corresponding circuit board which leads to poor transmission characteristics with respect to the control signals outputted via the contacts and the like. In addition, in the known socket, a relative movement between the individual conductor track sections carrying and separating part and this conductor track sections instead. This can lead to undesirable wear in the region of the individual printed conductor sections and thus to reduced transmission quality.

As is known per se in the prior art, the individual conductor track sections may be covered on one side, that is to say on the underside or on the top side, by copper metal, which merges into the material layer of the end part. The conductor tracks and the conductor track sections may also be made of metal, in particular copper. The conductor track sections are coated in the non-insulated area, which serves for contacting, with good electrically conductive low-corrosion material, such as gold.

Based on this prior art, the present invention seeks to provide a socket of the generic type, which is improved in terms of transmission characteristics of electrical signals and the like, with the wear of the isolated trace sections to be minimized.

To solve this problem, the invention proposes that the second end portion of the circuit board is bent over more than 180 ° and the end short pointing parallel to each other, finger-like isolated trace sections, which protrude into the insertion opening, that the second end region is supported in the region of the isolated trace sections and in the region of a portion of the bend of an arc-like support member made of insulating, which has the isolated trace sections adapted free leaking fingers, on which the isolated track sections rest and where they are fixed, the support member is limited pivotally supported in a housing fixed contact carrier made of insulating material and the contact carrier partially surrounds the area of the bend on the surface remote from the support member and supports and with a further component bears against the surface of the first end region of the second printed circuit board, which rests against the first printed circuit board, and that between a housing part and the further component of the contact carrier has a first end a leaf spring is clamped and fixed, which merges via a bend in isolated spring fingers at the second end, which bear against the support member in the region in each case by its fingers on the side facing away from the individual conductor track sections.

Characterized in that the second end portion, which is bent over by more than 180 °, forms the short mutually parallel finger-like individual printed conductor sections, so that a quasi-comb structure is formed, wherein the conductor track sections form the teeth of the comb, it is achieved that the contact points on these conductor track sections are as close as possible to the first end region. Due to the configuration, according to which the second end region in the region of the individual conductor track sections and in the region of part of its bend is supported by an arcuate support part made of plastic, which individually supports the individual conductor track sections with free-running fingers, and in that the separated conductor track sections on the fingers are fixed, for example, are glued, it is achieved that a relative movement between the support member and the scattered conductor track sections can not take place, so that a related wear is ruled out. Thus, the support member when inserting a plug is sufficiently flexible and can dodge according to the suspension of the individual track sections, the support member is held with bearing pin in a contact carrier, which in turn is fixed in the housing. The contact carrier itself still forms an outer support member, which is adjacent to the quasi-inner support member and which is adjacent to the bent portion of the flexible printed circuit board, which is adjacent to the individual printed conductor sections, so that here another support for stabilization is formed. In this area, the flexible circuit board made of insulating material, in which conductor track sections and the like are embedded. A wear of the outer insulating layer takes place in the intended use only in barely noticeable measure instead.

Finally, the first end of a leaf spring is clamped and fixed to reinforce the contact pressure between a housing part and the further component of the contact carrier, which also merges via a bend in isolated spring fingers on the second end. These spring fingers rest on the likewise corresponding finger-bearing support part on the side, which faces away from the separated conductor track sections. As a result, an excellent and durable suspension is achieved and reinforced the spring force, without this would promote wear.

The axis formed by the journals is directed parallel to the central axes of the bends.

Although the support member is rotatably held in its intended use around the bearing pins, thereby also a certain relative movement between the spring arm and the support member can take place, but this is irrelevant with regard to the isolated conductor track sections of the second circuit board.

Overall, hereby a socket is provided which has excellent transmission properties, which are sufficient even the so-called category 8, with a wear of the contacting elements is largely prevented, so that a permanent function and long life is ensured.

In particular, it is preferably provided that the second circuit board side by side has eight finger-like individual conductor track sections.

Such an embodiment serves to insert corresponding plug of the type RJ 45, which have correspondingly eight contacts.

In order to limit the pivoting mobility of the support member, it is preferably provided that the support member bearing journals having a rounded end portion and projecting from each other converging pads and the contact carrier has matching recesses with rounded end and outgoing parallel to each other surfaces, so that formed a Schwenkwinkelbegrenzung is, in which abuts in a first end position, a first connection surface on a first parallel surface and in a second end position, a second connection surface on a second parallel surface.

In order to prevent such a socket from being damaged by inserting a non-permissible plug, in particular a RJ 11, RJ 12 plug, it is provided that in each case one locking tooth is arranged or formed on the contact carrier in the plug-in area in front of the first and the eighth finger-like conductor track section is that projects beyond the surface of the contact carrier and behind the protruding into the mating area End portion of the first and eighth finger-like conductor track portion lies back.

By this configuration it is achieved that when plugging a permissible connector RJ 45 all eight plug contacts can be contacted with the corresponding conductor track sections, wherein the plug has grooves in the region of the corresponding contact, wherein in the region of the first and the eighth groove of the ratchet can slide past without locking parts of the plug. However, if a wrong connector of the type RJ 11, RJ 12 is plugged, then this plug is plugged only up to the ratchet teeth, because the plug in the region of the ratchet teeth have no grooves (and no contacts), so plugging of the plug is prevented, which could lead to damage of the socket.

The ratchet tooth can be molded onto the contact carrier. But it is also possible to provide a pocket in the contact carrier, in which a corresponding ratchet tooth can be used so that it is held captive there. In this case, the ratchet tooth may be made of other material. For example, the ratchet tooth can be made of metal.

Preferably, it is also provided that electrotechnical compensation means, resonance damping means and / or further or other means improving the electrical transmission properties are embedded in the first end region of the second, flexible printed circuit board.

An embodiment of the invention is illustrated in the drawing and described in more detail below.

Figur 1

eine komplette Steckbuchse in Ansicht von schräg oben gesehen;

Figur 2

einen Schnitt durch eine solche Steckbuchse mit einem teilweise eingesteckten Stecker RJ 45;

Figur 3

desgleichen bei vollständig eingestecktem Stecker RJ 45;

Figur 4

desgleichen bei eingestecktem Stecker RJ 11/RJ 12;

Figur 5

Einzelheiten einer Steckbuchse in Schrägansicht von oben gesehen ohne Gehäuse;

Figur 6

eine Schnittansicht analog Figur 2 gesehen;

Figur 7

Einzelheiten der Steckbuchse in einer Vormontagesituation von schräg unten gesehen;

Figur 8

eine Einzelheit der Steckbuchse in Ansicht;

Figur 9

eine weitere Einzelheit der Steckbuchse in Ansicht gesehen;

Figur 10

eine weitere Einzelheit der Steckbuchse in Ansicht gesehen;

Figur 11

eine weitere Einzelheit der Steckbuchse in Ansicht gesehen;

Figur 12

eine weitere Einzelheit in Ansicht gesehen.

It shows:

FIG. 1

a complete socket viewed obliquely from above;

FIG. 2

a section through such a socket with a partially inserted plug RJ 45;

FIG. 3

likewise with completely inserted plug RJ 45;

FIG. 4

likewise with inserted plug RJ 11 / RJ 12;

FIG. 5

Details of a socket in an oblique view seen from above without housing;

FIG. 6

a sectional view analog FIG. 2 seen;

FIG. 7

Details of the socket in a pre-assembly situation viewed obliquely from below;

FIG. 8

a detail of the socket in view;

FIG. 9

another detail of Socket seen in view;

FIG. 10

another detail of the socket seen in view;

FIG. 11

another detail of the socket seen in view;

FIG. 12

another detail seen in view.

In the drawing, a socket 1 for telecommunications and / or data transmission systems is shown. It has a female housing 2 made of metal, preferably zinc die-cast. In the housing 2, a first circuit board 3 is positioned, the connection means 4 for electrical conductors, in the exemplary embodiment eight such connection means 4 in the form of cutting contacts having. These connection means 4 are accessible from a bottom surface of the housing 2, in Figure 2, for example, from below. On the opposite side, a plug-in opening 5 is provided, which serves to insert a corresponding plug 6 in the correct position in the socket 1, so that it is contacted with its contacts with the contacts of the socket 1.

Furthermore, a flexible second printed circuit board 7 is arranged in the housing 2, which in FIG. 8 shown as a single item. This flexible second printed circuit board 7 has from these isolated conductor track sections 8, the contact areas. 9 form for contacts of the plug 6. The flexible second circuit board 7 is fixed to the first circuit board 3 and contacted with the contact tracks in a suitable manner. As will be explained later, the conductor track sections 8 are resiliently supported by spring means and support means arranged in the housing.

The flexible second printed circuit board 7 is fixed to a first end region 10 adjacent to the first printed circuit board 3 and contacted with the conductor tracks. The second end portion 11 is in the component (12) in the installation target position, as for example in FIG. 2 is shown, bent over more than 180 °, with the end short short mutually parallel, finger-like, isolated trace sections 8 are provided which protrude in the installation target position in the insertion opening 5. These finger-like conductor track sections 8 are formed very short, which is advantageous for the electrical signal transmission.

The second end portion 11 is underlaid and supported in the region of a portion of the bend 12 and in the region of the individual printed conductor sections 8 by a sheet-like support member 13 made of insulating material, as in FIG. 2 is apparent. The support member 13 is as a single part in FIG. 9 shown. This support member 13 has the isolated conductor track sections 8 adapted, free expiring finger 14 on which in the assembly target position the isolated Track sections 8 rest and where they are fixed, which may be glued, for example. It is thereby prevented relative movement between the parts (8) and (14). The support member 13 is provided with journals 15 in a contact carrier 16, the in FIG. 12 shown as a detail, kept pivotally limited. The contact carrier surrounds the region of the bend 12 on the surface facing away from the support member 13 partially and supports the corresponding region of the second end portion 11 of the flexible printed circuit board 7. With a further component 17, the support member 16 is located on the surface of the first end portion 10 of the second circuit board. 7 on, which rests against the first circuit board 3, such as in FIG. 2 is apparent. Between a housing part of the housing 2 and the further component 17 of the contact carrier 16, a first end 18 of a leaf spring 19 is clamped and fixed. This leaf spring 19 is in FIG. 10 shown as a single part. It has an issued latching lug or retaining lug 20 which in FIG. 6 is shown in the functional position in which the part 17 engages in a recess. The leaf spring 19 is also bent over a bend 21 and is in the bent area in isolated spring fingers 22 on. These spring fingers 22 are in the desired position on the support member 13 in the region of each of its fingers 14 on the side facing away from the individual printed conductor sections 8 side. The functional position is for example in FIG. 2 shown.

In particular, the second printed circuit board 7 has eight finger-like individual printed conductor sections 8. Likewise, the support member 13 eight corresponding fingers 14 and the leaf spring 19 corresponding to eight spring fingers 22nd

The support member 13 has bearing pins 15 with a rounded end portion 23 and projecting from this, converging terminal surfaces 24. The contact carrier 16 has correspondingly U-shaped recesses 25 with a rounded end and outgoing from each other parallel surfaces 26. When used in the recesses 25 bearing pin 15 a pivoting angle limit is thereby achieved. In the one end position, for example, in FIG. 5 it can be seen, a first connection surface 26 rests against a first surface 24 parallel thereto, while in a second end position the second connection surface 26 rests against the second parallel surface 24.

The contact carrier 16 has in the insertion region of the plug 6 in front of the first and the eighth finger-like conductor track section in each case a locking tooth 27. This ratchet 27 projects beyond the area of the contact carrier 16 facing the plug-in area 5. The arrangement is such that although a RJ 45 plug can be plugged in, like this FIG. 2 and 3 can be seen because the locking tooth 27 can then be introduced into a groove formed by the first and eighth contact region of the plug 6. Insofar as an RJ 11 connector is stuck, as in FIG. 4 is shown, so there is no groove on the corresponding connector 6 ', because the first and eighth contact is missing. According to the plug 6 'is applied to the locking tooth 27 during insertion and is not adjustable in the contact position, so that damage to the corresponding contacts 1.8 is not possible.

In the embodiment according to the invention it is provided in particular that in the first end region of the flexible printed circuit board 7, ie in the region 10 or in the region of the bend 12 before the individual printed conductor sections begin, electronic compensation means, resonance damping means and / or other or other means improving the electrical transmission property are embedded.

In the embodiment according to the invention, a purposeful use, ie when a plug 6 is inserted into the insertion opening 5, a contacting with the finger-like conductor track sections 8 in the area 9 reaches, wherein the region of the bend 12 from a position such as in FIG. 4 is shown in a position as shown in the final insertion position FIG. 3 is shown, is bent over. There is no relative movement between the support member 13 and its fingers 14 and the finger-like conductor track sections 8 instead, but these parts are firmly connected. A relative movement may at best take place between the bent portion of the leaf spring 19 and the support member 13, which is harmless for wear. By the leaf spring 19 and the support member 13 positioning and spring force of the finger-like conductor track sections 8 is reinforced in the contact position, so that a good contact with the contacts of the inserted plug 6 is achieved. It is thus achieved a low-wear design of the socket 1, which meets high demands, in particular the so-called Cat 8 condition.

The invention is not limited to the embodiment, but in the context of the disclosure often variable.

All disclosed in the description and / or drawing single and combination features are considered essential to the invention.

LIST OF REFERENCE NUMBERS

1

receptacle

2

socket housing

3

first circuit board

4

connection means

5

plug-in opening

6

Plug RJ 45

6 '

Plug RJ 11,12

7

second circuit board

8th

Trace sections

9

contact point

10

first end v. 7

11

second end region v. 7

12

Bend v. 7

13

supporting part

14

Fingers v. 13

15

Journal v. 13

16

contact support

17

Component v. 16

18

first end v. 19

19

leaf spring

20

Rastung v. 19

21

Bend v. 19

22

Spring fingers v. 19

23

End part v. 15

24

Connection surfaces v. 15

25

Recess v. 16

26

Areas v. 25

27

Ratchet tooth v. 16

Claims (5)

Socket (1) for telecommunications and / or data transmission systems with a socket housing (2) made of metal, a first printed circuit board (3) fixed therein with connecting means (4) for electrical conductors which are accessible from a bottom surface of the housing, a plug-in opening ( 5) for a connector (6) communicating with the socket, a flexible, second printed circuit board (7) with separated conductor track sections, the contact areas for the contacts of a plug (6) and which is fixed to the first circuit board (3) and contacted with their contact paths, wherein the conductor track sections are resiliently supported by spring means and support means arranged in the housing, wherein the flexible second printed circuit board (7) with a first end region (10) on the first circuit board (3) and is contacted with the conductor tracks, characterized in that the second end region (11) of the printed circuit board (7) is bent by more than 180 ° and endseit has short, mutually parallel, finger-like individual printed conductor sections (8), which protrude into the insertion opening (5), that the second end region (11) in the region of the individual printed conductor sections (8) and in the region of a part of the bend (12) of a Arc-like support member (13) is supported from insulating material, which the isolated conductor track sections (8) adapted free leaking fingers (14) on which the isolated conductor track sections (8) rest and on which they are fixed, wherein the support member (13) with bearing pin (15) in a fixed housing in the contact carrier (16) made of insulating material is limitedly pivotally supported and the contact carrier (16) partially surrounds and supports the region of the bend (12) on the surface facing away from the support part (13) and abuts with another component (17) on the surface of the first end region (10) of the second printed circuit board (7) on the first printed circuit board (3) is applied, and that between a housing part and the further component (17) of the contact carrier (16) a first end (18) of a leaf spring (19) is clamped and fixed, which via a bend (21) in isolated spring fingers (22 ) merges at the second end, which bear against the support part (13) in the region each of the fingers (14) on the side facing away from the isolated conductor track sections (8) side. Socket (1) according to claim 1, characterized in that the second printed circuit board (7) side by side has eight finger-like individual printed conductor sections (8). Socket (1) according to claim 1 or claim 2, characterized in that the support part (13) bearing journal (15) having a rounded end portion (23) and protruding from each other converging terminal surfaces (24) and the contact carrier (16) to match Recesses (25) with rounded end and of this outgoing mutually parallel surfaces (26), so that a Schwenkwinkelbegrenzung is formed, in which in a first end position, a first connection surface (24) on a first parallel surface (26) and in a second end position, a second connection surface (24) on a second parallel surface (26) is present. Socket (1) according to claim 2, characterized in that on the contact carrier (16) in the insertion direction in front of the first and the eighth finger-like conductor track section (8) each have a locking tooth (27) is arranged or formed over the surface of the contact carrier (16). protrudes and behind which in the plug-in area (5) projecting end portion of the first and eighth finger-like conductor track portion (8) lies back. Socket (1) according to one of claims 1 to 4, characterized in that in the first end region (10) and / or at the region of the bend (12) of the second flexible printed circuit board (7) electrotechnical compensation means, resonance damping means and / or other or other embedded electrical transmission characteristics improving agent.

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