EP1347539A1 - Electrical connector for the data technology - Google Patents

Abstract

The electrical plug connector has transition regions between a conductor section and a contact section of contacts for at least two different contact pairs with different profiles in parallel first planes and the transition regions of at least two different contact pairs at a distance from each other in a direction parallel to the conductor sections and in a common second plane.

Description

The invention relates to an electrical connector for data technology, in particular an RJ45 socket, with several in at least three pairs of contacts arranged contacts, each with a connection section, a contact section for engaging contacts another electrical connector and a conductor section have, which connects the connection section with the contact section, wherein the contact sections in mutually parallel first Layers are arranged, all conductor sections at least in sections run parallel to each other and in a common second level, the conductor sections and the contact sections of each contact in are arranged at an angle to each other and all contacts in the transition area between conductor section and contact area in the same direction are bent.

US Pat. No. 5,647,770 describes an insert for an RJ45 socket known in which the contacts of a pair of contacts in a horizontal Direction are crossed. The contacts each point Connection sections for connecting connection cables, contact sections for engagement with contact sections of a matching one Plug and a conductor section, the connecting sections with the Connects contact sections. The contact sections are in each other arranged parallel first levels. At the transition of the conductor sections a bend is provided in the contact sections through which the contact sections at an angle of approximately 45 ° to the conductor sections stand. In the horizontal direction, parallel to the first parallel ones Seen levels of the contact sections, is the crossover of the Contacts of the contact pair are symmetrical. In the vertical The directions seen perpendicular to the parallel first planes are crossed contacts arranged in different levels, so that the conductor sections are not seen in the vertical direction overlap.

An insert for an RJ45 socket is known from US Pat. No. 5,399,107 known in which a crosstalk at high frequencies by enlarging of the distance and additional dielectric material between the individual contacts should be reduced. For this are the Conductor sections of adjacent contacts in different from each other parallel planes arranged and the conductor sections run in guide grooves made of dielectric material.

An insert for an RJ45 socket is known from US Pat. No. 5,779,503 known, in which a total of four contact pairs are provided, where the contacts of three contact pairs are crossed. The crossover is in the transition area between conductor sections and Contact sections of the contacts placed. All three crossovers are identical and symmetrical. The contact sections are in mutually parallel first levels and all in a common one plane perpendicular to the parallel planes. To the also in a common second level arranged conductor sections the contact sections are arranged at an angle of approximately 45 °. In the a transition area between conductor sections and contact sections horizontal crossings are on one side on a plastic insert held.

From the German patent DE 198 22 630 C1 there is an insert for an RJ45 socket known in which the contacts of a contact pair are crossed. The contacts each have connection sections, conductor sections and contact sections. The contact sections are in parallel first planes and the conductor sections at least in sections on a common second level. The transitions between conductor sections and contact sections are between different contact pairs bent in opposite directions.

Another insert for an RJ is known from US Pat. No. 5,911,602 45 socket known, in the case of FIG. 9, two different designs of contacts, corresponding to two different contact forms, are provided. The conductor sections run in one common second level and between contact sections and conductor sections a transition area is arranged in each case two different contact forms differently is. At the first contact formation the transition area a first 90 ° bend and a subsequent second bend by about 45 °. In the second contact formation, the transition area a first bend of about 135 ° from a Angling in the opposite direction by about 45 ° and finally by one further bend followed by about 50 °. Overall, this one Embodiment only two different contact designs are provided. The two different contact trainings come for use within a pair of contacts.

The international patent publication WO 97/19499 shows an insert for an RJ 45 socket in which a total of two different contact configurations are provided. The same contact training is used within a contact pair. The two different contact configurations are achieved in that the conductor sections of the contacts of a contact pair do not run in a common plane with the other conductor sections. In the case of these two conductor sections, the transition section between the conductor section and the contact section is consequently designed differently in order to arrange the contact sections in a further common plane.
From the European patent application EP 0 955 703 A2 an insert for an RJ 45 socket is known, in which two different contact designs are provided. Two different contact designs are used within a contact pair. The conductor sections of all contacts run on a common level. The two different contact configurations are realized in that a transition area between the conductor sections and the contact sections is offset in a direction parallel to the conductor sections.

An insert for an RJ 45 socket is known from US Pat. No. 6,217,392 B1 known where the contacts are in an area where the distance of the contacts with one another is at least partially enlarged, in a plastic block are embedded. A crossover of contacts is not scheduled.

The invention aims to provide an electrical connector for data technology can be created in which crosstalk with a simple structure between contact pairs even at high transmission frequencies is reduced.

According to the invention there is an electrical connector for data technology, in particular an RJ45 socket, with several, at least three pairs of contacts arranged contacts are provided, each a connection section, a contact section for the engagement with contacts of another electrical connector and one Have conductor section, the connection section with the contact section connects, with the contact sections in parallel to each other first levels are arranged, all conductor sections at least in sections parallel to each other and in a common second Level, the conductor sections and the contact sections each Contact are arranged at an angle to each other and all contacts in the transition area between the conductor section and the contact area are bent in the same direction, in which the contacts in at least two different contact pairs are designed differently, whereby the transition areas of contacts for at least two different ones Contact pairs between the conductor section and the contact section in the respective first levels a different course have and in which the transition areas of contacts at least two different pairs of contacts in one direction parallel are spaced from one another to the conductor sections.

By making the contacts of at least two pairs of contacts different trained, there will be a significant improvement in crosstalk behavior achieved. By the transition areas of at least two contact pairs have a different course, they are aligned Transitional areas of different contact pairs between contact sections and conductor sections not to each other, whereby a near crosstalk between contact pairs is reduced. Through the bend in the same direction of all transition areas and the sections Arrangement of all conductor sections in a common plane nevertheless a dimensionally accurate and cost-effective arrangement reached. Furthermore, the transition areas are of at least two different ones Contact pairs in a direction parallel to the conductor sections and lying in the common plane of each other spaced. These measures also prevent the Transitional areas between conductor sections and contact sections different pairs of contacts are aligned with each other, causing crosstalk between contact pairs can be reduced. According to one advantageous further training are three different contact training provided with three different contact pairs, then the transition areas with three contact pairs in one direction parallel are spaced apart from one another and / or the conductor sections Transition areas with three contact pairs have a different course exhibit.

In a further development of the invention, the contacts are a pair of contacts crossed at least three contact pairs, with between different Contact pairs at least two different crossover angles are selected.

These measures also reduce the crosstalk behavior of the electrical Connector especially at high transmission frequencies improved.

In a further development of the invention, the contact sections are different Contact pairs not when the matching connector is inserted are arranged lying in a common plane.

Through these measures, the contact sections run differently Contact pairs both in the relaxed state and in the state with a plug inserted in the RJ45 socket not in alignment with each other, which has a positive influence on the crosstalk behavior.

In a further development of the invention, the contacts are in a plastic insert by embedding at least the crossover of contacts fixed.

In this way, the contacts can be securely fixed. In the area the crossings, the distances of the contacts to each other are exact adhered to and change through the embedding also over the lifetime of the electrical connector. In particular the predetermined distances are maintained, even if the contact sections compress by inserting a suitable connector. For example, the contacts in the area of crossovers be encapsulated. The molding of the contacts is advantageously carried out during the production of the plastic insert in the same operation.

The plastic insert with the contacts is a further development of the invention designed to be insertable into a housing, the plastic insert and / or the housing at least one locking element for fixing the plastic insert in a predetermined position in the housing exhibit.

This measure allows the plastic insert to be easily inserted into one Plastic housing can be mounted and securely attached to it become.

In a further development of the invention, the locking elements are in the region of a Guide rail or guide groove arranged on the plastic insert.

This ensures the fitting of the electrical connector further relieved.

The problem underlying the invention is also solved by a Plastic insert with contacts for an electrical connector solved according to the invention.

Fig. 1

eine Seitenansicht von Kontakten für eine RJ45-Buchse gemäß einer ersten Ausführungsform der Erfindung,

Fig. 2

eine Ansicht von unten der Kontakte der Fig. 1,

Fig. 3

eine Ansicht von vorne der Kontakte der Fig. 1,

Fig. 4

eine perspektivische Ansicht von schräg unten der Kontakte der Fig. 1,

Fig. 5

eine perspektivische Ansicht eines Kunststoffeinsatzes mit den Kontakten der Fig. 1,

Fig. 6

eine Ansicht von oben des Kunststoffeinsatzes der Fig. 5 und

Fig. 7

eine perspektivische Ansicht eines Kunststoffeinsatzes für einen elektrischen Steckverbinder gemäß einer zweiten Ausführungsform der Erfindung.

Further features and advantages of the invention result from the claims and the following description of preferred embodiments of the invention in conjunction with the drawings. The drawings show:

Fig. 1

a side view of contacts for an RJ45 socket according to a first embodiment of the invention,

Fig. 2

a bottom view of the contacts of Fig. 1,

Fig. 3

a front view of the contacts of Fig. 1,

Fig. 4

2 shows a perspective view obliquely from below of the contacts in FIG. 1,

Fig. 5

2 shows a perspective view of a plastic insert with the contacts of FIG. 1,

Fig. 6

a view from above of the plastic insert of FIGS. 5 and

Fig. 7

a perspective view of a plastic insert for an electrical connector according to a second embodiment of the invention.

1 to 4, a total of eight contacts 1 to 8 recognizable. The contacts 1 and 2, the contacts 3 and 6, contacts 4 and 5 and contacts 7 and 8 each a pair of contacts.

Each contact 1 to 8 has a connection section 10 for connection of connection cables or for connecting to a printed circuit board, one Contact section 12 for engagement with contacts of a matching one RJ45 connector and a conductor section 14 on the respective Connection section 10 and the respective contact section 12 with each other combines. As can be seen in Fig. 1, the contact sections are 12 at an angle of approximately 45 ° to the conductor sections 14. At the transition between a conductor section 14 and a connection section 10, the contacts are each offset, the contacts are alternately bent up or down. For example in the illustration of FIG. 1, the contact 1 is cranked upwards, wherever against the contact 2 is bent down. This will make the distance between the respective connection sections 10, so that an interaction between the contacts in the connection area is reduced and to the mutually parallel sections of contacts remains limited. In the embodiment shown If several contacts are crossed with each other, namely contacts 1 and 2 of the first pair of contacts, contacts 4 and 5 of the third pair of contacts and contacts 7 and 8 of the fourth pair of contacts.

2 and 3 it can be seen that all contact sections 12 in each other parallel first levels. 1 it can be seen that all conductor sections 14 in sections in a common second level.

As can be seen in the view from below in FIG. 2, run in the area the crossover of the contacts no two contacts in parallel. In seen in a direction perpendicular to the common second plane, in which all conductor sections run parallel to each other in sections, thus take all conductor sections in the crossover area different angular position. This is how contacts 4 cross and 5 executed with a different angle than the crossings of the Contacts 1 and 2 or 7 and 8, so that two different crossing angles available. The crossings of contacts 1 and 2 or contacts 7 and 8 are also unbalanced, i.e. neither point-symmetrical. They also point out the bends of contacts 3 and 6 have a different angular position than all other conductor sections in this area.

The illustrations in FIGS. 1 and 2 also show that the transition areas between the conductor sections 14 and the contact sections 12 between different contact pairs are different and these transition areas between different contact pairs are also arranged offset are. So are in a direction parallel to the conductor sections 14 and the transition regions lie in the common plane of the conductor sections 14 of contacts 3 and 6 of the second pair of contacts from the transition areas of contacts 1 and 2 of the first contact pair and the transition areas of contacts 7 and 8 of the fourth contact pair and the transition areas of contacts 4 and 5 of the third pair of contacts. Since also the transition areas of contacts 1 and 2 of the first contact pair and the transition areas of contacts 7 and 8 of the fourth pair of contacts in this direction from the transition areas of contacts 4 and 5 of the third Contact pair are spaced, the transition areas of the first, second and third contact pair in the view of FIG. 1 not together. In the view of FIG. 1, only the transition areas are aligned of the first and fourth pair of contacts with each other.

As can also be seen in the illustration in FIG. 1, the transition regions are of the first and fourth and the second and third Contact pairs designed differently. This is the transition area the contacts 4 and 5 of the third pair of contacts comparatively acute angle executed. In contrast, the transition areas of the Contacts 1 and 2 and contacts 7 and 8 have a more rounded course on. The transition areas have an even larger radius of curvature of contacts 3 and 6.

As can further be seen in the illustration in FIG. 1, the contact sections lie 12 of contacts 1, 2 and 7, 8 and the contact sections of contacts 3 to 6 not in a common level. This is through the above described, different location and design of the Transitional areas of the individual contact pairs conditional. How to recognize is, this applies in the relaxed position of the contacts shown in Fig. 1 1 to 8. Due to the staggered arrangement of the transition areas of the individual contacts 1 to 8, this also applies to the clamped State of contacts 1 to 8 when the contact areas 12 of contacts of a suitable RJ45 connector are depressed. By the Contact areas of the contact pairs are not even in the tensioned state in line with one another, the crosstalk behavior is positively influenced.

1 to 4, the contacts are in all four Contact pairs trained differently. Within each contact pair the contacts are also designed differently. The contacts 1 and 8, 2 and 7 and 3 and 6 are symmetrical to a central plane educated.

In the illustration in FIG. 5, the contacts 1 to 8 are in a plastic insert 20 arranged. Contacts 1 through 8 are used in manufacturing overmolded of the plastic insert 20 and thereby in sections embedded in this. As can be seen in the illustration in FIG. 5, are the conductor sections 14 of the individual contacts in the area of Crossings as well as in another area of the conductor sections 14 molded. This makes contacts 1 to 8 safe and immovable fixed in the plastic insert 20. The plastic insert 20 can be inserted into a housing, one for an RJ45 plug has a suitable recess.

It can be seen from the illustration in FIG. 5 that the conductor sections of the individual contacts 1 to 8 are injected into the plastic insert 20 essentially up to the transition region at which the conductor sections merge into the contact sections 12. As a result, the crossovers of the conductor sections 14, which are arranged near the transition region, lie firmly in the plastic insert 20 and when the contact sections 12 deflect, the crossovers themselves remain at rest, so that the already small distance in the area of the crossovers cannot be further reduced.
In order to be able to insert the plastic insert 20 securely and precisely into a housing, this is provided on both sides with a guide strip 22. The guide strips 22 engage in suitable guide grooves in a housing 30 indicated by dashed lines in FIG. 6 and are each provided with a detent 24. The plastic insert 20 with the contacts 1 to 8 can be securely locked in the housing by means of the latching lug 24, which engages in a suitable recess in the housing 30.

6 are of the plastic insert 20 of FIG. 5 the two guide rails 22 and the locking lugs 24 can be seen clearly, in matching grooves or recesses in the housing 30 intervention. It can also be clearly seen that the conductor sections 14 up to the transition area to the contact sections 12 are embedded in the plastic material of the plastic insert 20. For this purpose, the plastic insert 20 has, for example, a nose 26, which extends over the crossover area of contacts 4 and 5. Seen on the right in the direction of insertion of a suitable connector and to the left of the nose 26, the plastic insert is withdrawn in order contacts 3 and 6 only up to their crossover area embed. Two projections 28 are provided on the plastic insert 20, around contacts 1 and 2 or 7 and 8 up to their transition area embed.

7 shows a further embodiment of the invention shown, compared to that shown in FIGS. 1 to 6 Embodiment, however, only the connection sections 10 of the individual Contacts are angled. This allows a direction of insertion an RJ45 plug into the RJ45 socket of FIG. 7, for example run obliquely to a circuit board into which the connection sections 10 are soldered are. In addition to the angular position shown in FIG. 7 the connecting sections 10 assume any angular position and be angled, for example, by 90 °, in the direction of insertion to reach parallel to a circuit board.

Claims (9)

Electrical connector for data technology, in particular RJ45 socket, with a plurality of contacts arranged in contact pairs, each of which has a connection section, a contact section for engaging contacts with another electrical connector and a conductor section which connects the connection section to the contact section, the contact sections are arranged in mutually parallel first planes, all conductor sections run at least in sections parallel to one another and in a common second plane, the conductor sections and the contact sections of each contact are arranged at an angle to one another and all contacts in the transition area between the conductor section and the contact area are bent in the same direction, characterized that the transition areas of contacts unite at least two different contact pairs between the conductor section and the contact section in the respective parallel first planes have different course and the transition areas of at least two different contact pairs are spaced apart in a direction parallel to the conductor sections and lying in the common second plane. Electrical connector according to claim 1, characterized in that the transition areas of contacts with at least three different contact pairs between the conductor section and the contact section have a different course in the respective parallel first planes. Electrical connector according to claim 1 or 2, characterized in that the transition regions of contacts are spaced apart from one another in at least three different contact pairs in a direction parallel to the conductor sections. Electrical connector according to one of the preceding claims, characterized in that the contacts of a contact pair are crossed at at least three contact pairs, wherein at least two different crossover angles are selected between different contact pairs. Electrical connector for data technology according to one of the preceding claims, characterized in that the contact sections of at least three different contact pairs when the matching connector is inserted are not arranged in a common plane perpendicular to the parallel planes. Connector according to one of the preceding claims, characterized in that the contacts are fixed in a plastic insert by embedding at least the crossover of contacts. Connector according to one of the preceding claims, characterized in that the plastic insert with the contacts is designed to be insertable into a housing, the plastic insert and / or the housing having at least one latching element for fixing the plastic insert in a predetermined position in the housing. Connector according to claim 7, characterized in that the latching elements are arranged in the region of a guide rail or guide groove on the plastic insert. Plastic insert with contacts for an electrical connector according to one of claims 6 to 8.

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