EP3196988B1 - Jack for telecommunication and/or data transmission systems - Google Patents

Description

The invention relates to a socket for telecommunications and / or data transmission systems with a socket housing, a fixed therein first circuit board with connection means for electrical conductors, which are accessible from a side surface of the housing, at least one insertion 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 the 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 portion rests against the first circuit board and is contacted with the conductor tracks, wherein the second end portion of the circuit board is bent over more than 180 °, and short, mutually parallel, finger-like isolated conductor track sections which protrude into the insertion opening, wherein the second end portion is supported in the region of the isolated conductor track 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 finger on which rest the isolated trace sections and where they are fixed, wherein the support member is limited in a fixed housing fixed contact carrier made of insulating material pivotally and the contact carrier partially surrounds the area of the bend on the surface facing away from the support part and supports and with another Component bears against the surface of the first end region of the second circuit board, which rests against the first circuit board, and that between a housing part and the further component of the contact carrier, a first end of a B Lattfeder 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 printed conductor sections.

From the DE 20 2004 003635 U1 a socket for telecommunications and data transmission systems is known in which the individual conductor track portions of the second circuit board are arranged on disc-shaped guide elements of a spring-shaped support member.

Such a socket is from the DE 10 2014 111 048 known and has proven itself. In this solution, it has been proven that the second end portion of the circuit board is bent over more than 180 ° and short ends to each other has parallel, finger-like individual trace sections. As a result, a kind of comb structure is formed, wherein the conductor track sections form the teeth of the comb. This ensures that the contact points on these conductor track sections are close to the first end region. In addition, it has proven itself in this case that the scattered conductor track sections are fixed on fingers of an arc-like support member, whereby a relative movement between the support member and the individual conductor track sections and a consequent wear is excluded.

The arrangement of a leaf spring, which also passes over a bend in isolated spring fingers on the second end and is secured between a housing part and the other part of the contact carrier, allows for a permanent suspension of the individual conductor track sections and on the other hand, a reduction in the wear of the contact points.

Such a socket already has excellent transmission properties, which also correspond to the so-called category 8 and has proven itself as a durable solution with a long service life.

Due to the above-mentioned prior art, the present invention has the object, a socket of the type mentioned in terms of the number of possible plug-in operations of a plug improve and at the same time to further improve the transmission characteristics of electrical signals and the like.

In order to achieve this object, the invention proposes that the second end region of the flexible second printed circuit board has a region projecting the printed conductor sections, wherein on each finger of the supporting part a nose-like projection projecting in the direction of the respective printed conductor section is formed, which upon insertion of the plug into the plug-in opening before reaching the contact position contacted the conductor track sections projecting area and forms a pivot axis for this area, in which in an intermediate position and in the contact position of the plug of the conductor track sections projecting portion is pivoted in the direction of the first end portion of the second circuit board.

Here, a recess is provided in each case between two successive conductor track sections. This means that the area projecting the conductor track sections is arranged quasi on the opposite end of the conductor track sections on the second printed circuit board.

For transmission of electrical signals according to the category 8 standard, a standardized RJ 45 plug is plugged into the socket. When plugged into the socket of the plug meets in an intermediate position, that is, in a position in which the plug has already been partially inserted into the socket, but not yet End position, so the locking and contact position, has reached first on the conductor track sections superior area. Subsequently, during the insertion of the plug into the socket, the plug exerts pressure on the area projecting over the conductor track sections and pivots this area in the direction of the first end area of the second printed circuit board. In the locking and contact position, the second end portion of the second circuit board is located in a clearance between the first end of the leaf spring and the plug.

By pivoting this the conductor track sections projecting area wear of the contact points between the plug and socket forming trace sections is reduced with frequent insertion of the plug into the socket. By pivoting of the conductor track sections projecting area to the nose-like projection of the support member around on the one hand ensures that corresponding contact areas, namely the conductor track sections are not damaged by sharp parts of the plug or the contacts of the plug to later in the contact position of the plug one enable uninterrupted contact with the plug.

Frequently, these parts of the plug, which first impinge on the conductor track sections projecting area, sharp edges, which, if necessary, especially in a high number of plug-in operations Could damage conductor sections, whereby the electrical conductivity of the conductor track sections would be limited and the contact between the plug and socket would be impaired if necessary. These potential damage and consequent impairments are avoided in that the sharp edges of the plug when inserting the plug into the socket first on the conductor track sections projecting area and this pivot. Subsequently, upon reaching the end position of the plug, so the locking and contact position of the plug, the contact areas of the socket, which are formed by the conductor track portions, against the force of the spring and held by the respective fingers of the support member in a to the contacts of the plug Pressed pressed position. As a result, a reliable and durable and even with a large number of plug-ins ensured transmission of electrical signals from the plug to the socket and back from the socket to the plug is ensured.

The strip conductor sections are components of the respective second printed circuit board and are exposed only in the region and on the side which contact the contacts of the inserted plug of an insulation. This means that, for example, all areas of the second printed circuit board that do not come into contact with parts of the plug can be provided with insulation.

Such a socket allows a particularly high number of plug operations of a corresponding connector. That is, even with a large number, such as far more than 750 plug-in operations, such a socket has proven to be reliable and even with the high number of plug operations there is no restriction in the transmission of electrical signals between the conductor track sections and the contacts of an inserted plug.

In this case, a blocking means such as a ratchet tooth, which is arranged in the mating area in front of the first and the eighth finger-like conductor track section, may be provided in a manner known per se, thereby preventing such a socket from being plugged in by inserting a non-permissible plug, such as For example, a RJ 11 or RJ 12 connector is damaged.

In a further, self-inventive socket of the type mentioned may be particularly preferably provided that the conductor track sections are formed by on the contacts of the plug facing side of the second circuit board and exposed strip-like contact areas.

In such a second printed circuit board, the conductor track sections forming the contact points are formed by strip-like contact areas exposed on the second printed circuit board. It means that only the areas that contact the plug contacts when plugging a plug into the socket of an insulation and thus are electrically conductive. The area surrounding the strip-like contact regions of the second printed circuit board is not electrically conductive, for example by coating with an insulating layer. Thus, in this solution, the contact fingers of the conductor track sections are an integral part of the circuit board and exposed only in the area contacted with the plug plugged in the contacts of the connector.

In this solution, no recesses between two juxtaposed conductor track sections are provided.

As a result, a particularly efficient transmission of electrical signals is possible, at the same time only extremely low interference from external influences. The areas between two parallel, finger-like conductor track sections are formed by parts of the second track, which are provided with an insulating material, so that no electrical signals can be transmitted from a first finger-like conductor track section to a second finger-like track track section.

In both described sockets according to the invention can be particularly preferably provided that the conductor track sections or the strip-like contact areas of electrotechnical compensation means, resonance damping means and / or other or other, the electrical transmission characteristics improving means are surrounded or adjacent, wherein these means are at least partially disposed in the conductor track portions or the strip-like contact areas projecting area.

The arrangement of electrical compensation means is known per se. However, in solutions known in the art, it is contemplated that the compensation means be located at or near the first end portion of the second circuit board. This means that they have a relatively large path and thus a large distance to the conductor track sections or the strip-like contact areas. Characterized in that the compensation means are arranged close to or in the immediate vicinity of the conductor track portions or the strip-like contact areas, a significant improvement in the effect, such as the resonance damping or the shielding of a contact point forming conductor track sections or strip-like contact areas allows. This also improves the transmission of electrical signals compared to known solutions and in particular reduces the susceptibility to interference sources.

In all solutions, the areas in contact with the contacts of the connector areas, so the conductor track sections and the strip-like Be provided contact areas with a coating that ensures the electrical conductivity permanently and at the same time, for example, protects against corrosion. For this purpose, for example, a layer of gold is provided, which ensures a long-lasting operation with high electrical conductivity.

Furthermore, it can be particularly preferred for the second printed circuit board to have eight printed conductor sections or strip-like contact regions next to one another.

Such a configuration serves to plug in, for example, standard RJ 45 plug, which have eight contacts.

Finally, it may be particularly preferred that the second printed circuit board consists of a flexible film as a basic carrier.

The use of a flexible film as a basic carrier, on which the various conductor track sections or strip-like contact areas and additional electrical compensation means are arranged, allows a particularly flexible adaptation of the contact areas, namely the conductor track portions or the strip-like contact areas to be contacted areas of the plug inserted into the socket. This also makes a particularly high number of plug-in operations, in particular a standardized RJ 45 plug in the socket allows without transmitting the electrical signals Parts of the socket to take damage and thus the transmission of electrical signals is impaired.

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

Figur 1

eine Anordnung von zwei nebeneinander angeordneten Steckbuchsen;

Figur 2

einen RJ 45- Stecker mit freigeschnittenen Kontakten;

Figur 3

eine erfindungsgemäße Steckbuchse in Seitenansicht geschnitten ohne Stecker;

Figur 4

desgleichen mit eingeführtem Stecker in einer ersten Zwischenlage vor Berührung der zweiten Leiterplatte;

Figur 5

desgleichen in einer weiteren Zwischenlage, in der Stecker einen Bereich der Leiterplatte verschwenkt;

Figur 6

desgleichen mit erster Kontaktierung der Kontakte des Steckers;

Figur 7

desselben mit Stecker in der Endlage (Arretier- und Kontaktlage);

Figur 8

ein Ausführungsbeispiel einer erfindungsgemäßen zweiten Leiterplatte in Ansicht;

Figur 9

eine Blattfeder in Ansicht;

Figur 10

ein erfindungsgemäßes Stützteil in Ansicht;

Figur 11

ein weiteres Ausführungsbeispiel einer zweiten Leiterplatte in Ansicht.

It shows:

FIG. 1

an arrangement of two juxtaposed receptacles;

FIG. 2

an RJ 45 plug with cut-out contacts;

FIG. 3

a socket according to the invention cut in side view without plug;

FIG. 4

likewise with inserted plug in a first intermediate layer before touching the second printed circuit board;

FIG. 5

likewise in a further intermediate layer in which the connector pivots a region of the printed circuit board;

FIG. 6

likewise with first contacting of the contacts of the plug;

FIG. 7

the same with plug in the end position (locking and contact position);

FIG. 8

an embodiment of a second circuit board according to the invention in view;

FIG. 9

a leaf spring in view;

FIG. 10

an inventive support member in view;

FIG. 11

a further embodiment of a second circuit board in view.

In the FIG. 1 a double socket 1 for telecommunications and / or data transmission systems is shown. The double socket 1 has a first circuit board 2 with connection means 3 for electrical conductors. The double socket 1 can also be designed as a single socket. The double socket 1 has in the FIG. 1 not shown socket housing, which covers at least the connection means 3 for electrical conductors. The connection means 3 are accessible in the embodiment of a side surface of the housing. Each socket 1 in this case has an insertion opening 4 for a communicating with the socket 1 connector 5. The plug 5 is in the FIG. 2 shown and to illustrate the plug contacts 24 of the plug 5, this plug 5 is inclined at 23 cut off. This oblique cut 23 serves only to expose the plug contacts 24 of the plug 5 and show.

The socket 1 also consists of a second, flexible printed circuit board 6a with strip-like contact areas 21, the contact areas for the contacts 24 of the plug 5 form. The second flexible printed circuit board 6a is fixed to the first printed circuit board 2 and is in contact with its contact tracks. In this case, the conductor track sections are resiliently supported by arranged in the housing spring means and support means. The flexible second printed circuit board 6a abuts with a first end region 8 on the first printed circuit board 2 and is contacted with the conductor tracks.

As in particular from the FIGS. 3 to 7 and from FIG. 8 or FIG. 10 can be seen, the second end portion 9 of each circuit board 6,6a is bent over more than 180 ° and has short mutually parallel, finger-like conductor track sections 7 (according to FIG FIG. 11 For example, strip-like contact areas 21. These protrude into the insertion opening 4. In this case, the second end region 9 of the second printed circuit board 6 in the region of the individual printed conductor sections 7 or each second end region 9 of the second printed circuit board 6a is supported in the region of the strip-like contact regions 21, and in the region of part of the bend 10 by an arc-shaped support member 11 made of insulating material. The arcuate support member 11 has the sporadic trace sections 7 and the isolated strip-like contact areas 21 adapted free expiring finger 12. On the fingers 12 are the isolated trace sections 7 and the isolated strip-like contact areas 21 and are optionally fixed to this. The support member 11 is held in a limited fixed in the housing contact carrier made of insulating material pivotally and the contact carrier surrounds and supports the region of the bend 10 on the support member 11 facing away from the surface at least partially. In addition, it rests with a further component on the surface of the first end region 8 of the second printed circuit board 6, 6 a, which rests against the first printed circuit board 2.

Like from the FIGS. 3 to 7 can be seen between a housing part and the other part of the contact carrier, a first end 15 of a leaf spring 16 is clamped and fixed. The leaf spring 16 merges via a bend 17 in isolated spring fingers 18 at the second end. The isolated spring fingers 18 are respectively on the support member 11 in the region of each of its fingers 12 on the isolated track sections 7 and the isolated strip-like contact areas 21 facing away from.

According to the invention, the second printed circuit board 6 has a region 19 projecting over the printed conductor sections 7. In addition, on each finger 12 of the support member 11 a in the direction of the respective Track section 7 protruding nose-like projection 20 is formed. When inserting the plug 5 into the insertion opening 4 of the socket 1, the plug 5 meets in an intermediate position before reaching the contact position on the conductor track sections 7 superior areas 19. In this case, the projection 20 forms a pivot axis for this area 19, which passes through the plug. 5 is pivoted about this projection 20 around. In an intermediate position of plugged into the plug opening 4 plug 5, in which the contacts of the plug 5 and the conductor track sections 7 are not yet in contact and in the plug-in opening 4 inserted contact position of the plug 5 of the conductor track sections 7 superior area 19 in the direction the first end portion 8 of the second circuit board 6 is pivoted about the projection 20 forming the abutment.

Characterized in that when plugging the plug 5 into the plug-in opening 4 parts of the plug 5 first impinge on the conductor track sections 7 superior area 19, damage to the contact point forming track sections 7 is largely avoided. The impinging parts of the plug 5 are often formed sharp-edged, whereby damage to the first passing with these parts in contact parts of the second circuit board 6 can be done.

Such a socket 1 according to the invention thus enables a large number of plug-in operations of a plug 5. It can also be a large number of more than 750 Plugging operations are performed without such a socket 1 can take damage by, for example, sharp-edged areas of the plug 5.

Thus, the number of damage-free plug-in operations for such a socket 1 is significantly increased and allows a long life.

In an alternative or supplementary embodiment, which is also considered to be inventive in its own right, the conductor track sections are formed by strip-like contact regions 21 which are formed and exposed on the side of the second printed circuit board 6a facing the contacts of the plug 5. Such an embodiment is in the FIG. 8 shown. In the in the FIG. 8 shown embodiment of a second circuit board 6a, the circuit board 6a is not only extended beyond the conductor sections out, but the conductor sections forming contact areas 21 are an integral part of the circuit board 6a and only for electrical contacting, that is, for the transmission of electrical signals on the second circuit board 6a exposed by an insulation. The remaining between two juxtaposed contact areas 21 surface is not cut free, but through the second circuit board 6a, which consists for example of a flexible film with an insulating layer disposed thereon, filled. In the embodiment described above, a second circuit board 6, which in the FIG. 11 is shown as a single part, the area between two successive conductor track sections 7 is cut free.

Also in the FIG. 11 shown second circuit board 6 is in the embodiment of a flexible film and is extended beyond the conductor track sections 7 addition (at 19). In this case, the entire extended region 19, with the exception of the contact point forming conductor track sections 7 may be provided with an insulating layer.

As in particular from FIG. 8 the strip-like contact regions 21 of the second printed circuit board 6a can be seen by electrotechnical compensation means 22, which are shown in FIG FIG. 8 are shown schematically, surrounded or directly adjacent. These electrotechnical compensation means 22 may consist of resonance attenuation means, the shielding-increasing means or further or other means improving the electrical transmission properties. It is particularly advantageous that the compensation means 22 can be arranged particularly close to the strip-like contact regions 21. The arrangement can be arranged both in the region 19 projecting over the strip-like contact regions 21 or in a region lying close to the other side of the strip-like contact regions 21.

In particular, the compensation can be improved by the close arrangement and, for example, a screen separation can be arranged much more simply and effectively close to the strip-like contact regions 21 forming the contact surfaces.

As in particular from the FIGS. 8 and 11 As can be seen, the second printed circuit board 6 or 6a has eight printed conductor sections 7 or strip-like contact regions 21 arranged next to one another. This is known per se and serves to be able to use corresponding standardized RJ 45 plugs.

In the exemplary embodiments, the second printed circuit board 6 or 6a respectively consists of a flexible film as the basic carrier. By using a flexible film differences in height of the individual plug contacts 24 of the plug 5 can be compensated for the contact in a particularly simple manner. Since the individual conductor track portions 7 and strip-like contact portions 21 are pressed by means of the spring fingers 18 of the leaf spring 16 and the fingers 12 of the support member 11 against the contacts of the plug 5, thus height compensation for height differences of the individual plug contacts 24 of the plug 5 in a simple manner allows.

The invention is not limited to the embodiments, 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

first circuit board

3

connection means

4

plug-in opening

5

plug

6, 6a

second circuit board

7

Trace sections

8th

first end v. 6, 6a

9

second end region v. 6, 6a

10

Bend v. 6, 6a

11

supporting part

12

Fingers v. 11

15

first end v. 16

16

leaf spring

17

Bend v. 16

18

Spring fingers v. 16

19

Outstanding range v. 7

20

Ahead at 12

21

Contact areas at 6a

22

compensation means

23

Sloping at 5

24

Contacts to 5

Claims (5)

1. A plug socket (1) for telecommunication and/or data transmission systems, comprising a socket housing, a first printed circuit board (2) fixed therein and having connection means (3) for electrical conductors that are accessible from a side face of the housing, at least one plug-in opening (4) for a connector (5) communicating with the socket, a flexible, second printed circuit board (6, 6a) with circuit track sections separated therefrom that form the contact sections for the contacts (24) of the connector (5), and that is fixed at the first printed circuit board (2) and contacted with the circuit tracks thereof, the circuit track sections being resiliently held by spring means and support means disposed in the housing, the flexible second printed circuit board (6, 6a) abutting, with a first end section (8), the first printed circuit board (2) and being contacted with the circuit tracks thereof, the second end section (9) of the printed circuit board (6, 6a) being bent by more than 180º and including short mutually parallel, finger-type separated circuit track sections projecting into the plug-in opening (4), the second end section (9) being supported, in the section of the separated circuit track sections and in the section of part of the bent portion (10), by an arc-shaped support piece (11) of insulating material that includes freely extending fingers (12) matching the separated circuit track sections, on which the separated circuit track sections are supported and at which they are fixed, the support piece (11) being limitedly pivotably held in a contact carrier of insulating material fixed in the housing, and the contact carrier partially surrounding and supporting the section of the bent portion (10) on the face showing away from the support piece (11) and abutting, with a further component, the face of the first end section (8) of the second printed circuit board (6, 6a) that abuts the first printed circuit board (2), and between a housing portion and the further component of the contact carrier a first end (15) of a blade spring (16) being fitted and fixed that merges through a bent portion (17) into separated spring fingers (18) at the second end that abut the support piece (11) in the section of the fingers (12) thereof on the side showing away from the separated circuit track sections, wherein the second end section (9) of the flexible second printed circuit board (6, 6a) includes a section (19) projecting beyond the circuit track sections (7), wherein at each finger (12) of the support piece (11) a nose-type projection (20) projecting in the direction of the respective circuit track section (7) is formed that when introducing the connector (5) into the plug-in opening (4) contacts, prior to reaching the contact position, the section (19) projecting beyond the circuit track sections (7) and forms a pivot axis for this section, in which in an intermediate position and in the contact position of the connector (5) the section (19) projecting beyond the circuit track sections (7) is pivoted in the direction of the first end section (8) of the second printed circuit board (6, 6a).
2. The plug socket (1) of claim 1, characterized by that the circuit track sections are formed by strip-type contact sections (21) formed and separated on the side of the second printed circuit board (6a) showing toward the contacts of the connector (5).
3. The plug socket (1) of claim 1 or claim 2, characterized by that the circuit track sections (7) or the strip-type contact sections (21) are surrounded by or adjacent to electrotechnical compensation means (22), resonance damping means and/or further or other means improving the electrical transmission properties, these means being disposed at least partially in the section (19) projecting beyond the circuit track sections (7) or the strip-type contact sections (21) .
4. The plug socket (1) of one of claims 1 to 3, characterized by that the second printed circuit board (6, 6a) includes eight circuit track sections (7) or strip-type contact sections (21) side by side.
5. The plug socket (1) of one of claims 1 to 4, characterized by that the second printed circuit board (6, 6a) consists of a flexible film as a basic carrier.

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