DE102015109311A1 - Circular connector for data transmission of high data rates - Google Patents

Abstract

The present invention relates to a circular connector (1) for high data rates with a shielded connection cable (100) having at least four pairs of wires (100a, 100b), wherein the circular connector (1) with an electrically conductive housing (10) is formed in which a shielded contact carrier assembly (20) is accommodated from at least one contact carrier holder (30), an electrically conductive shielding cross (40) and four contact carriers (50), wherein the shielding cross (40) has four shielding webs (41), the four contact carrier receiving regions (42a, 42b, 42c, 42d) spatially, wherein in each contact carrier receiving portion (42a, 42b, 42c, 42d), a contact carrier (50) with two contacts (60, 61) is arranged, and wherein each contact carrier (50) from a pre-assembly in one Final assembly position deflectable wing (51) (with a fin), each in its deflected final assembly position one of the respective n cores (100a, 100b) assigned shielding (101) to the shielding cross (40) presses.

Description

The present invention relates to a circular connector with a shielded connection cable, in particular for data transmission of high data rates in the gigabit range according to claim 1.

Wired data transmission according to the Ethernet standard has been known for years. Various types of cable and connector types are used. The use of Registration Jack connectors (eg RJ-45 connectors) and the international standardized M12 connectors in the standardization series IEC 61076 is widespread.

Ethernet connections are increasingly used and needed in the industrial environment (Industrial Ethernet). However, industrial use places increased demands on EMC immunity to interference, the operating temperature range, protection against dirt, dust and splash water, resistance to various media such as oil, lubricants and acids of connectors. Frequent use consists in the connection of sensors or actuators in industrial plant engineering. The power supply of the sensors or actuators takes place via suitable connecting cables, but at the same time signals and / or data are transmitted via the data plugs.

Unwanted electromagnetic interference and interference caused by, for example, inductive proximity switches can cause malfunction in industrial plants. However, such EMC interference (inductive or capacitive or galvanic interference) must be avoided to ensure operational safety. In order to prevent possible interference of individual components in an industrial plant due to EMC interference (electromagnetic interference), often specially shielded connection cables are used, which are considerably more expensive than unshielded cables.

However, the shielding concepts known in the prior art are always optimized for very specific disturbing influences.

In order to be able to realize different shielding concepts, the providers of shielded connection cables offer different cable variants. When planning a technical or industrial system in which data and signals have to be transmitted, the user must decide on a specific shielding concept and adequate shielding attenuation and then wire the individual system components accordingly.

However, in addition to the fundamental possibility of data transmission, the current automation processes demand the transmission of very large amounts of data at constantly increasing transmission speeds. Currently, data rates up to 10 gigabit / s are to be transferred with the so-called M12 connectors.

Of the 10GBASE-T standard uses 1000BASE-T like already four pairs of twisted pairs. The structured cabling used for this purpose becomes global Standard ISO / IEC 11801 as well as in TIA-568A / B described.

In the data transmission, the data stream is divided between the four pairs of wires, so that on each pair of wires each 2.5 Gbit / s in a transfer direction d. H. must be transmitted in the transmit and receive directions.

Due to the high signal rate but various precautions must be taken to ensure the transmission reliability. In addition to the external interference, there are disruptions in the data transmission of high-frequency signals within the cable. Such interference is passively reduced by measures in the cable, which is usually to ensure sufficient potential gap between the wire pairs.

Can not be prevented, the so-called alien crosstalk, ie the crosstalk of adjacent, over long distances tightly bundled insufficiently shielded cable. Therefore, appropriate cables of the appropriate CAT category are foreseen in the relevant standards.

However, it is necessary that at the interfaces where releasable connectors are used, the cable shield is passed accordingly from one connector to the other and also within the cable route in the connector no unwanted interference effects occur and crosstalk or crosstalk is to be reliably prevented.

It is therefore an object of the present invention vorbesagte overcome problems and disadvantages and to provide a respect to the susceptibility improved or optimized circular connector, preferably for data transmission to 10 gigabit, which is inexpensive to manufacture and has a high reliability.

This object is achieved by a connector according to the features of claim 1.

The basic idea of the invention lies in the design of a specific Umbrella means having a plurality of contact holding means and a screen transfer to the shield from the connector to the corresponding mating connector z. B. convert a socket, wherein the shielding device is designed so that a secure contact of the cable shield is guaranteed.

The special feature is that according to the concept of the invention also the possibility exists the screen of the wire pairs (twisted pairs) isolated d. H. to lead from the potential separated from the outer shield of the sheathed cable. In other words, one aspect of the present invention is to provide a connector concept in which two separate shielding guides are possible.

Another aspect of the present invention is that the shield is transmitted within the connector via an inner shield cross by means of an axially movable and spring-loaded contact the front side of the mating connector.

According to the invention, a circular connector, preferably an M12 circular connector with a shielded connection cable with at least four pairs of wires is provided, wherein the circular connector is formed with an electrically conductive housing in which a shielded contact carrier assembly of at least one contact carrier holder, an electrically conductive shielding cross and four contact carrier is added , wherein the shielding cross has four (outwardly projecting) Schirmungsstege, which in this way four mutually shielded contact carrier receiving areas spatially separated from each other, wherein in each contact carrier receiving area a (preferably quarter-circle segment shaped) contact carrier with two contacts (for connection to a respective pair of wires) is arranged , According to the invention, it is provided that each contact carrier has a wing that can be deflected from a pre-assembly position into a final assembly position, which in each case pushes a cable shielding assigned to the respective pair of wires to the shielding cross in its deflected final assembly position. The screen cross may further preferably four isolated d. H. have electrically isolated Schirmungsstege or areas, which are each provided for contacting with one of the cable shields of the wire pairs (twisted pairs).

In an advantageous embodiment of the invention, it is provided that the respective deflectable wing has an outwardly projecting actuating element, which is intended when inserting the contact carrier assembly into the housing on an inner wall of the circular connector, preferably the housing is actuated from its pre-assembly in its final assembly position and then the Press the cable shield against the corresponding contact area on the shielding cross.

In a further preferred embodiment of the invention, it is provided that the contact carriers each have a contact carrier holding section enclosing the contacts and an adjoining contact carrier receiving section, which is open on one side and adjoins the respective aforementioned wing.

It is further advantageous if the actuating element in the form of a fin projecting from the wing is formed with a fin ridge sloping relative to a connecting base of the fin with the wing (opposite to the insertion direction). This sloping ramp acts as a control curve during insertion, so that the wing is deflected inward accordingly.

The contact carrier holder is advantageously designed so that it at least partially receives or holds the shielding cross.

It can advantageously be further provided according to the invention that the contact carrier holder forms two open half-shells for receiving contact portions of the contacts, which is preferably arranged in the mounted position relative to the one-side contact carrier receiving portion of the respective contact carrier, so that in each case a half-shell of the contact carrier and a half-shell the contact carrier holder comprise the contact together.

In a likewise advantageous embodiment of the invention it is provided that the contact carrier assembly is secured to a cylindrical cable passage sleeve means one or more support arms, wherein at least one arm end of the support arms, a window-like opening (opening) is provided for engagement in a retaining lug of the cable passage sleeve and the retaining arms are formed by the contact carrier holder. Another arm may be formed with an opening in the front end extension direction, which can be pushed over a pin projecting on the cable sleeve and thus fixes the arm.

According to the invention in a preferred embodiment of the inventive connector in the center of the contact carrier assembly as a screen transfer means an axially spring-loaded in the insertion direction contact or pin is provided, the spring-loaded in a mating connector with a corresponding mating connector contacted a correspondingly corresponding screen element of the mating connector. According to the invention Accordingly, also provided a connector system of a connector pair as described above.

In a likewise preferred embodiment of the invention, it is provided that at the screen cross each between two immediately adjacent webs, which are preferably oriented at an angle of 90 ° to each other is provided at an angle of about 45 ° wegstehender from the screen cross holding block, on each one, a corresponding opening having contact carrier, preferably by clamping, is plugged. This results in a particularly compact design together with the design of the contact carrier holder.

Another aspect of the present invention relates to an embodiment in which the connection cable has an outer shield and a separate inner respectively surrounding the wire pairs inner shield, but the shield cross is only connected to the inner shield of the connecting cable and the outer shield is guided separately.

Other advantageous developments of the invention are characterized in the subclaims or are shown in more detail below together with the description of the preferred embodiment of the invention with reference to FIGS.

Show it:

1 3 is a perspective view of a contact carrier assembly and cable grommet assembly according to an exemplary embodiment of the invention;

2 a perspective view of the assembly of contact carrier assembly and cable passage sleeve according to the 1 together with a housing,

3 a perspective view of a contact carrier with inserted contacts,

4 a schematic sectional view through an embodiment of a connector according to the invention with a mating connector,

5 a schematic sectional view through a further embodiment of a connector according to the invention and

6 another sectional view through a connector according to 5 ,

In the following description of embodiments of the present invention, it is to be understood that like reference characters in the figures indicate like structural and / or functional features.

The 1 to 3 each show perspective views of parts of an assembly of a connector according to the invention 1 , where the 1 a contact carrier assembly 20 with a cable inlet sleeve 60 according to an exemplary embodiment of a connector according to the invention 1 shows how these in the sectional views of the 4 respectively. 5 are shown.

In the 2 is additionally a housing 10 the connector 1 shown in which the contact carrier arrangement shown next 20 is mounted.

In the 5 is a schematic sectional view of a circular connector 1 with a shielded connection cable 100 shown. Also shown is the schematic course of the lines of two of the wire pairs 100a . 100b ,

The circular connector 1 is with an electrically conductive housing 10 formed in the shielded contact carrier assembly 20 from the contact carrier holder 30 , the electrically conductive shielding cross 40 and four contact carriers 50 is recorded. The shielding cross 40 has four Schirmungsstege 41 on.

Like in the 1 can be seen further, separate the four Schirmungsstege the housing interior into four mutually shielded contact carrier receiving areas 42a . 42b . 42c . 42d spatially. In each of the contact carrier receiving areas 42a . 42b . 42c . 42d is ever a contact carrier 50 with two contacts each 60 . 61 arranged. Every pair of contacts 60 . 61 is a "twisted pair" line, so eifern assigned shielded wire pair or connected to one line of the wire pair.

Every contact carrier 50 shows, as clearly in the 3 it can be seen a wing 51 on. The wing 51 is via a flexible connecting bridge 51a with a unilaterally open contact carrier receiving portion 50b of the contact carrier 50 connected. To the contact carrier receiving portion 50b closes the two contacts 60 . 61 enclosing contact carrier holding section 50a at. The contact carrier holding section 50a has two channels in the direction of insertion of the connector 54 on, by which ever a contact 60 respectively. 61 is mounted. The contacts 60 . 61 are based on retaining projections 60a from. The unilaterally open contact carrier receiving portion 50b points for every contact 60 respectively. 61 an open half shell 55a . 55b each in the form of a groove corresponding to the outer contour (ie the shape and the radius) of the contacts is modeled. The wing is aligned in the insertion direction with the half shells 55a . 55b one wing section each 56a . 56b on, each through a laterally open gap 57 from the contact carrier receiving portion 50b are separated. The thickness of the grand piano 51 is clearly opposite to the thickness of the contact carrier in the region of the contact carrier receiving portion 50b reduced (in about 15-25% of the thickness of the contact carrier receiving portion 50b ). The wing 51 is present with a fin 52 Mistake. The wing 51 can be elastic from a (as in 2 shown) pre-assembly in a (as in 5 shown) final assembly position are deflected, with the shield 101 of the respective contact pair of the assigned wire pairs 100a . 100b through the respective wings 51 securely contacting the shielding cross 40 be pressed, as shown in the sectional view of 6 is apparent. In the 2 is also an approximately rectangular recess 58 in the contact carrier holding section 50a brought in. The contact carrier holding section 50a has an approximately quarter-circular cross-section and extends in the extension direction of the contacts 60 . 61 and forms two mutually at an angle of about 90 ° to each other side surfaces 57a . 57b out, over a teilzylindmmantelförmige curved surface 57c together a part of the outside of the contact carrier holding portion 50a form. At the screen cross 40 in each case between two directly adjacent webs 41 , Which in the present case are oriented at an angle of 90 ° to each other, is one each at an angle of about 45 ° to the outside of the screen cross 40 wegstehender holding block 44 provided on each of which a contact carrier 50 with its corresponding opening 58 clamped attached.

The respective wing 51 has an outwardly projecting actuator 52 (here Finn 52 ), which upon insertion of the contact carrier assembly 20 in the case 10 on an inner wall 11 the circular connector and that of the housing 10 from its pre-assembly to its final assembly position.

The actuator 52 is in the shape of one out of the wing 51 protruding fin with one opposite a connection base 53 the Finn with the wing 51 obliquely rising fin back 54 educated.

In the 1 It can also be seen that the contact carrier holder 30 the shielding cross 40 partially absorbs and carries. The contact carrier holder 30 has two integrally formed open half shells 31a . 31b for receiving contact portions of the contacts 60 . 61 on. These half shells 31a . 31b lie in the mounted state of the contact carrier 50 respectively corresponding to the half-shells 55a . 55b and enclosing rear portions of the contacts 60 . 61 ,

The assembled contact carrier assembly 20 (please refer 2 ) is on a cylindrical cable passage sleeve 60 by means of one or more retaining arms 33 attached. At the illustrated end of the arm 33a of the support arm 33 is a window-like opening 34 for engaging in a retaining lug of the cable passage sleeve 60 provided, wherein the retaining arms 33 from the contact carrier holder 30 be formed integrally.

In the 4 it can be seen that in the center of the contact carrier arrangement 20 as shielding means an axially spring-loaded in the insertion direction Kontaktpin 70 is provided, in one with a corresponding mating connector 1' put together state spring force applied to a correspondingly corresponding screen element 70 ' of the mating connector 1' contacted.

The invention is not limited in its execution to the above-mentioned preferred embodiments. Rather, a number of variants is conceivable, which makes use of the illustrated solution even with fundamentally different types of use.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited non-patent literature

• IEC 61076 [0002]
• 10GBASE-T standard used like 1000BASE-T [0008]
• Standard ISO / IEC 11801 as well as in TIA-568A / B [0008]

Claims (10)

Circular connectors ( 1 ) with a shielded connection cable ( 100 ) with at least four wire pairs ( 100a . 100b ), wherein the circular connector ( 1 ) with an electrically conductive housing ( 10 ) is formed in which a shielded contact carrier assembly ( 20 ) from at least one contact carrier holder ( 30 ), an electrically conductive shielding cross ( 40 ) and four contact carriers ( 50 ), wherein the shielding cross ( 40 ) four shielding webs ( 41 ), the four mutually shielded contact carrier receiving areas ( 42a . 42b . 42c . 42d ), wherein in each contact carrier receiving area ( 42a . 42b . 42c . 42d ) a contact carrier ( 50 ) with two contacts each ( 60 . 61 ) and each contact carrier ( 50 ) a deflectable from a pre-assembly position in a final assembly position wings ( 51 ), in each case in its deflected final assembly position a the respective pair of wires ( 100a . 100b ) surrounding shielding ( 101 ) to the shielding cross ( 40 ) presses. Circular connectors ( 1 ) preferably for the transmission of high data rates in the gigabit range according to claim 1, characterized in that the respective wing ( 51 ) an outwardly projecting actuator ( 52 ), which during insertion of the contact carrier arrangement ( 20 ) in the housing ( 10 ) on an inner wall ( 11 ) of the circular connector, preferably the housing ( 10 ) is operated from its pre-assembly in its final assembly position. Circular connectors ( 1 ) according to claim 1 or 2, characterized in that the contact carriers ( 50 ) one each the contacts ( 60 . 61 ) enclosing contact carrier holding section ( 50a ) and an adjoining one-sided open contact carrier receiving section ( 50b ) to which the respective wing ( 51 ). Circular connectors ( 1 ) according to one of claims 2 or 3, characterized in that the actuating element ( 52 ) in the form of a wing ( 51 ) protruding fin with one opposite a connection base ( 53 ) the fin with the wing ( 51 ) obliquely rising fin back ( 54 ) is trained. Circular connectors ( 1 ) according to one of the preceding claims, characterized in that the contact carrier holder ( 30 ) the shielding cross ( 40 ) at least partially absorbs. Circular connectors ( 1 ) according to one of the preceding claims, characterized in that the contact carrier holder ( 30 ) two open half-shells ( 31a . 31b ) for receiving contact portions of the contacts ( 60 . 61 ) trains. Circular connectors ( 1 ) according to one of the preceding claims, characterized in that the contact carrier arrangement ( 20 ) on a cylindrical cable passage sleeve ( 60 ) by means of one or more retaining arms ( 33 ) is attached, wherein at least one arm end ( 33a ) a window-like opening ( 34 ) for engaging in a retaining lug of the cable inlet sleeve ( 60 ) is provided and wherein the retaining arms ( 33 ) of the contact carrier holder ( 30 ) be formed. Circular connectors ( 1 ) according to one of the preceding claims, characterized in that in the center of the contact carrier arrangement ( 20 ) as a screen transfer means an axially in the insertion direction spring-mounted contact pin ( 70 ) is provided, which in a plugged together with a corresponding mating connector state spring force contacted a correspondingly corresponding screen element of the mating connector. Circular connectors ( 1 ) according to one of the preceding claims, characterized in that at the screen cross ( 40 ) in each case between two directly adjacent webs ( 41 ), which are preferably oriented at an angle of 90 ° to one another at an angle of approximately 45 ° to the outside of the screen cross ( 40 ) standing block ( 44 ) is provided on the one, a corresponding opening having a contact carrier ( 50 ) is preferably clamped attached. Circular connectors ( 1 ) according to one of the preceding claims, characterized in that the connection cable ( 100 ) an outer shield ( 102 ) and one of them separated respectively the wire pairs ( 101 . 102 ) surrounding inner shielding ( 101 ), wherein the screen cross ( 40 ) only with the inner shield ( 101 ) of the connection cable ( 100 ) and the outer shielding ( 102 ) is separated from it.

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