EP2425494B1 - Cabel connection device - Google Patents

Description

The invention relates to a cable connection device for the electrically conductive connection of a preferably multi-core cable, with a pressure nut, a receiving device and a contact carrier.

Cable connection devices have great significance in various fields of application, such as in industrial connection technology, and serve, for example, for connection of electrical components and / or electrical devices, such as electrical components, electrical devices and / or electrical devices. Various cable connection devices are known from the prior art, which are also referred to as electrical connectors and / or power distributors and / or can be used as a cable connection device. Such Kabelanschlusseinrichtungen are described in numerous versions, such as in the protection IP 6X.

Such Kabelanschlusseinrichtungen must ensure in addition to a simple installation and a long-term high reliability, especially in an outdoor application and the associated stress caused by a variety of weather conditions. The cable connection devices known from the prior art, which can be used for a larger conductor cross section of a wire of the cable, are particularly complicated to install and often have a disproportionate size due to the high connection forces, compared to cable connection devices for smaller cable cross sections. In particular, an energy distribution in protection class IP 6X can only be solved unsatisfactorily with the cable connection devices known from the prior art for large conductor cross sections.

From the EP 0 980 117 A2 a cable connection device for the electrically conductive connection of a multi-core cable to an electrical device with a cable connection component and a device connection component is known. The cable connection component includes a union nut and a wire receiving and guide part and to the device connection component provided with insulation displacement terminals and terminals clamping and connection unit and a sleeve-shaped, provided with an internal thread of the union nut corresponding external thread connecting body. The wire ends of the individual wires to be contacted with the insulation displacement terminals or clamped by the insulation displacement terminals and the associated insulation displacement terminals run at an acute angle, the insulation displacement of the wire ends of the individual wires being severed when the union nut is screwed onto the connection body and the conductors of the individual conductors Contact cores.

Therefore, it is the object of the invention to provide a cable connection device which is easy to assemble and inexpensive to produce, especially for a larger conductor cross-section of a wire of the cable.

This object is achieved by a cable connection device for electrically conductive connection of a preferably multi-core cable, with a pressure nut, a receiving device and a contact carrier, wherein the cable can be passed through the pressure nut and through an opening of the receiving device, the receiving device has a core receptacle, wherein a core a stripped portion of the cable is radially positioned relative to the longitudinal axis of the cable connection device on the wire holder, and the pressure nut, can be screwed onto the contact carrier, that the pressure nut engages around the receiving device, the wire receptacle to the contact carrier shows and by screwing the pressure nut, the receiving device to the contact carrier can be pressed , wherein the core receptacle has a half-shell for positioning the wire.

According to the invention, a cable connection device for the electrically conductive connection of a preferably multi-core cable is provided, which can be produced in a particularly compact design, which can be connected very easily and / or very quickly to a cable, and / or due to a very simple construction with only a few Items is very cheap to produce. In particular, the screwing of the pressure nut with the contact carrier, wherein the pressure nut engages around the receiving device, allows a construction of the cable connection device in a very small size. The fact that a core receptacle is provided in the receiving device, a wire of the cable can be very easily and quickly fixed. Finally, the low number of components compared to the prior art also reduces the manufacturing costs. Due to the design of the core holder with the half-shell, an exact positioning of the wire in the wire holder can be achieved.

The cable connection device according to the invention, which can be implemented as an energy distributor and / or as an electrical plug connector for the electrically conductive connection of a cable to an electrical device or for the electrically conductive connection of two cables and / or can be used as a cable connection device, for example in protection class IP 6X, permits a " Laying "a wire of a stripped portion of the cable in a radially aligned to the longitudinal axis of the cable connection device core receptacle so that the wire is positioned in the wire receptacle so that the wire is particularly easy electrically contacted, for example from the direction of the contact carrier facing the end of the cable connection device. Furthermore, by such a wire pick-up, for example, automated assembly of the electrical contacting of the wire can be carried out since the position of the wire on the pick-up device can be predetermined by the wire pickup.

Furthermore, it is preferred that the vein can be positioned flush in the half-shell and / or the half-shell has a semicircular shape. It is even further preferred that the contact carrier has an external thread onto which the pressure nut can be screwed is. The fact that by screwing the pressure nut, the receiving device to the contact carrier, can be pressed, since thereby the wire between the wire holder and the contact carrier is fixed, the position of the wire position such that the wire is immovable even with respect to the loads associated with outdoor applications , Thus, a low susceptibility to error of the cable connection device can be ensured.

A preferred development of the invention is that the receiving device has a first opening and a second opening, the cable can be guided through the first opening into the cable connection device and the cable can be led out of the cable connection device through the second opening. Such a configuration makes it possible, for example, to achieve a parallel routing of the cable from a cable channel to the cable connection device. Preferably, the first opening, the second opening and / or the cable have the same profile. In other words, it is preferred that the first opening and / or the second opening are dimensioned such that the cable rests flush against the first opening and / or on the second opening. It is further preferred that the stripped portion of the cable is positionable between the first opening and the second opening such that the cable is inserted through the first opening into the cable termination device, preferably immediately thereafter the stripped portion of the cable is provided, and thereon preferably immediately after the cable is led out through the second opening of the cable connection device.

According to a further preferred embodiment of the invention, it is further provided that the receiving device has a first opening and a second opening, the cable can be guided through the first opening into the cable connection device and the cable can be fastened in a terminating sleeve in the second opening. Thus, according to this preferred embodiment of the invention, the cable can be inserted through the first opening into the cable connecting device, the stripped portion of the inserted cable or the wire of the stripped portion of the cable in the wire receptacle of the receiving device Position the following part of the cable in the terminating sleeve in the second opening. Preferably, a wire of the cable in the end sleeve can be fastened for this purpose. Most preferably, the closure sleeve terminates flush with the second opening.

In this context, as well as in the previously described embodiment of the invention with an inserted and a running cable is preferred that the cable is semi-circular positionable by means of the receiving device, so that the core pickup in the thus formed semicircle on the vein of the positioned in the semicircle stripped Section of the cable is arranged. By such embodiments, on the one hand can easily attach electrical taps to a "running" cable, and on the other attach an electrical tap on one end of the cable.

In principle, the receiving device can be configured as desired. According to a further preferred embodiment of the invention, however, it is provided that the receiving device is designed as a seal. Thus, by screwing the pressure nut on the contact carrier, the seal to the contact carrier press, whereby a sealing of the cable connection device is achieved, in particular a seal of the provided inside the cable connection device Ademaufnahme and arranged around this stripped portion of the cable is achieved. With very particular preference, it is possible to carry out the IP 6X protection by means of the gasket of the cable connection device. In this context, it is further preferred that the receiving device is designed as a two-part seal, that the first opening and the second opening are formed by an assembly of the sealing parts. For this purpose, the sealing parts preferably surround the first opening and the second opening in half. By such an assembly of the sealing parts, the two-piece seal can be very easily arranged on the cable.

Furthermore, according to a development of the invention, it is particularly preferred that the core receptacle and the receiving device can be executed as separate parts. For example, as stated above, the receiving devices as a seal, for example, as a rubberized seal, and the core receptacle from a relation to the seal stronger material, such as a plastic, executable.

It is particularly preferred according to a further embodiment of the invention that a Pierce contact for electrically conductive contacting of the wire is provided and the Pierce contact can be passed through an opening of the contact carrier. In this context, it is further preferred that the opening of the contact carrier is arranged opposite to the opening of the receiving device. In other words, it is preferred that the core can be electrically conductively contacted by means of a Pierce contact, ie in particular the tip of the Pierce contact is electrically conductively contacted by insulation of the core of the conductor of the core.

The cable connection device according to the invention can therefore be connected to a cable by the following steps: stripping off a section of the cable. Relocating the cable so that the stripped portion of the cable comes to rest in the folded portion of the cable. Passing the folded cable through the compression nut, attaching the receptacle to the cable such that a vein of the stripped portion of the cable comes to lie radially against the longitudinal axis of the cable termination on the receptacle. Screwing the pressure nut on the contact carrier, so that the pressure nut engages around the receiving device, the wire holder shows the contact carrier and by screwing the pressure nut, the receiving device can be pressed to the contact carrier. Inserting a Pierce contact in the contact carrier, so that the Pierce contact electrically contacts the wire.

According to a preferred embodiment of the invention, it is further provided that the Pierce contact is designed as a pointed contact screw and the contact screw has a female contact at the end remote from the tip. Thus, electrical equipment can be electrically connected to the cable connection device by means of the socket contact in a simple manner.

According to a preferred embodiment of the invention is further provided that a sealing ring is provided between the pressure nut and the contact carrier. Preferably, the sealing ring is designed as an O-ring seal. Such a sealing ring allows a seal between the pressure nut and the contact carrier and prevents penetration of moisture, for example.

In principle, the cable connection device can be connected by any means with other electrical devices. According to a further preferred embodiment of the invention, however, it is provided that the contact carrier has a union nut for fastening the cable connection device has a plug. Such a union nut allows a secure and easy connection to the plug, such as an electrical connector. In this context, it is further preferred that the plug can be fastened in a wall and the plug has a contact pin for the electrically conductive contacting of the Pierce contact. Most preferably, the plug in the wall of an electrical junction box and / or in the wall of an electrical device can be fastened.

Basically, a conductor of the wire can have any cross section. According to a further preferred embodiment of the invention, however, it is provided that the cable connection device can be used for a conductor cross section of the core of ≥ 6 mm ² , preferably ≥ 8 mm ² and very particularly preferably ≥ 10 mm ² . Such a conductor cross-section allows the application of the cable connection device in applications that were previously, as known from the prior art, only by a tap, for example. A busbar, realized. In this connection, it is very particularly preferred to use the cable connection device according to the invention for the electrically conductive connection of a preferably multi-core cable to an electrical device or for the electrical connection of two preferably multi-core cables.

Fig. 1

eine Kabelanschlusseinrichtung gemäß einem bevorzugten Ausführungsbeispiel der Erfindung in einer Schnittansicht,

Fig. 2a

einen Kontaktträger der Kabelanschlusseinrichtung gemäß dem bevorzugten Ausführungsbeispiel der Erfindung in einer Perspektivansicht,

Fig. 2b

eine Druckmutter und eine Aufnahmeeinrichtung der Kabelanschlusseinrichtung gemäß dem bevorzugten Ausführungsbeispiel der Erfindung in einer Perspektivansicht,

Fig. 3a

den Kontaktträger der Kabelanschlusseinrichtung gemäß dem bevorzugten Ausführungsbeispiel der Erfindung in einer weiteren Perspektivansicht,

Fig. 3b

die Druckmutter und die Aufnahmeeinrichtung der Kabelanschlusseinrichtung gemäß dem bevorzugten Ausführungsbeispiel der Erfindung in einer weiteren Perspektivansicht,

Fig. 4a

einen Stecker der Kabelanschlusseinrichtung gemäß dem bevorzugten Ausführungsbeispiel der Erfindung in einer Perspektivansicht,

Fig. 4b

den Stecker der Kabelanschlusseinrichtung gemäß dem bevorzugten Ausführungsbeispiel der Erfindung in einer weiteren Perspektivansicht,

Fig. 5a

die Kabelanschlusseinrichtung gemäß dem bevorzugten Ausführungsbeispiel der Erfindung in einer Perspektivansicht, und

Fig. 5b

die Kabelanschlusseinrichtung gemäß dem bevorzugten Ausführungsbeispiel der Erfindung in einer weiteren Perspektivansicht.

The invention will be explained in more detail with reference to the drawing. In the drawing shows:

Fig. 1

a cable connection device according to a preferred embodiment of the invention in a sectional view,

Fig. 2a

a contact carrier of the cable connection device according to the preferred embodiment of the invention in a perspective view,

Fig. 2b

a compression nut and a receiving device of the cable connection device according to the preferred embodiment of the invention in a perspective view,

Fig. 3a

the contact carrier of the cable connection device according to the preferred embodiment of the invention in a further perspective view,

Fig. 3b

the compression nut and the receiving device of the cable connection device according to the preferred embodiment of the invention in a further perspective view,

Fig. 4a

a plug of the cable connection device according to the preferred embodiment of the invention in a perspective view,

Fig. 4b

the plug of the cable connection device according to the preferred embodiment of the invention in a further perspective view,

Fig. 5a

the cable connection device according to the preferred embodiment of the invention in a perspective view, and

Fig. 5b

the cable connection device according to the preferred embodiment of the invention in a further perspective view.

Out Fig. 1 . Fig. 5a and 5b a cable termination device according to a preferred embodiment of the invention can be seen during Fig. 2a and Fig. 3a show a contact carrier of the cable connection device according to the preferred embodiment of the invention, Fig. 2b and Fig. 3b a pressure nut and a receiving device of the cable connecting device according to the preferred embodiment of the invention show, and Fig. 4a show a plug of the cable connection device according to the preferred embodiment of the invention.

The cable connection device has a pressure nut 1 and a receiving device 2. A multi-core cable 3 is inserted through the pressure nut 1 through an opening 4, 5 of the receiving device 2 in the cable connection device. Concretely, the cable 3 is led into the cable connection device through a first opening 4 and led out of the cable connection device through a second opening 5, as shown Fig. 5b seen. The cable 3 is flush with the first opening 4 and the second opening 5, as shown Fig. 2b or Fig. 5b seen. In the present case, the receiving device 2 is designed as a two-part seal made of a rubber-like material as a slotted double seal such that the first opening 4 and the second opening 5 are formed by joining the sealing parts.

The receiving device 2 further comprises a core receptacle 6, wherein the receiving device 2 and the core receptacle 6 are designed as separate parts. In the core receptacle 6, a core 7 of a stripped section 8 of the cable 3 can be positioned radially to the longitudinal axis of the cable connection device. The core receptacle 6 has to a half-shell 9, which is designed semicircular, as from Fig. 2b and Fig. 3b seen. In this way, a core 7 of the cable 3 is positioned flush in the core receptacle 6.

The cable 3 is thus inserted through the pressure nut 1 and through the first opening 4 of the receiving device 2 in the cable connection device, an inserted portion 8 of the cable 3 is stripped, wherein the core 7 of the stripped portion 8 of the cable 3 radially to the longitudinal axis of the cable connection device the core receptacle 6 are positioned, and the cable 3 is led out in the further course through the second opening 5 of the receiving device 2 and through the pressure nut 1 from the cable connection device.

The pressure nut 1 is screwed onto a contact carrier 10, such as for example Fig. 1 . Fig. 5a or Fig. 5b can be seen, so that the pressure nut 1, the receiving device 2 engages such that, as from Fig. 1 can be seen, the half-shell 9 of the core receptacle 6 to the contact carrier 10 and by screwing the pressure nut 1, the receiving device 2 to the contact carrier 10 can be pressed. A sealing ring, not shown, may be provided for improved sealing between the pressure nut 1 and the contact carrier 10.

A Pierce contact 11, in the present case designed as a pointed contact screw, is provided for the electrically conductive contacting of a wire 7. In this case, the Pierce contact 11 is passed through an opening 12 of the contact carrier 10 such that the Pierce contact 11 is inserted opposite to the cable 3 in the cable connection device. For the electrically conductive contacting of the wire 7 Pierce the contact 11 pierces an insulation of the A-7, as in Fig. 3b indicated. At the tip modified end, the pierce contact 11 has a female contact 13.

To attach the cable connection device to a plug 14, a union nut 15 is provided. The plug 14 can be fastened to a wall, for example, and has a contact pin 16 for the electrically conductive contacting of the Pierce contact 11. A seal 17, designed as an O-ring seal, is provided between the plug 14 and the union nut 15.

For electrically conductive connection of the cable connection device to a multi-core cable 3, the procedure is, for example, as follows: A section 8 of the cable 3 is to be jacked off, so that the wires 7 of the stripped section 8 of the cable 3 come to light. Turning over the cable 3, so that the stripped portion 8 of the cable 3 comes to lie in the folded portion of the cable 3, which thus forms a semicircle. The thus transferred cable 3 is passed through the pressure nut 1. The core receptacle 6 is to be mounted on the stripped portion 8 of the cable 3, so that the wires 7 of the stripped portion 8 of the cable 3 come to rest in the wire receptacle 6. The sealing parts are to be joined together so that the first opening 4 comprises the cable 3 and the second opening 5 the cable 3. The pressure nut 1 is screwed onto the contact carrier 10 such that the pressure nut 1 engages around the receiving device 2, so that the core receptacle 6 to the contact carrier 10 shows and by screwing the pressure nut 1, the receiving device 2 is pressed to the contact carrier 10. The pierce contacts 11 are to be introduced into the contact carrier 10 from the opposite side in the cable 3 of the cable connection device, that each Pierce contact 11 each one wire 7 electrically conductively contacted.

The cable connection device can be used for the electrically conductive connection of a preferably multi-core cable 3 around an electrical device or for the electrical connection of two preferably multi-core cables 3. In this case, a conductor of the wire 7 in cross-section ≥ 6 mm ² , preferably ≥ 8 mm ² and most preferably ≥ 10 mm ² have.

As a result, a cable connection device is provided, with which, for example, a "running" cable 3 and / or an end of a cable 3 can be connected to an electrical device or two cables 3 can be connected to one another, wherein the cable connection device is particularly simple, and therefore inexpensive to produce has a very compact design, a parallel wiring of a tap, such as a cable channel, the cable connection device allowed, can be acted upon by particularly high currents and / or is particularly easy and safe to install.

Claims (13)

1. A cable connection device for the electrically conductive connection of a preferably multi-core cable (3), comprising a compression nut (1), a holding device (2) and a contact support (10), wherein
   the cable can be passed through the compression nut (1) and through the opening in the holding device (2),
   the holding device (2) has a core holder (6), wherein a core (7) of a sheathed portion (8) of the cable (4) can be positioned on the core holder (6) radially relative to the longitudinal axis of the cable connection device, and
   the compression nut (1) can be screwed onto the contact support (10) in such a way that the compression nut (1) surrounds the holding device (2), the core holder (6) points toward the contact support (10), and the holder device (2) can be pressed against the contact support (10) by screwing on the compression nut (1),
   characterised in that
   the core holder (6) has a half-shell (9) for positioning the core (7).
2. The cable connection device according to Claim 1, wherein the holding device (2) has a first opening (4) and a second opening (5), the cable (3) can be passed through the first opening (4) into the cable connection device, and the cable (3) can be removed from the cable connection device through the second opening (5).
3. The cable connection device according to Claim 1, wherein the holding device (2) has a first opening (4) and a second opening (5), the cable can be passed through the first opening (4) into the cable connection device, and the cable (3) can be fastened in a closure sleeve in the second opening (5).
4. The cable connection device according to one of the preceding claims, wherein the holding device (2) is formed as a seal.
5. The cable connection device according to one of Claims 2 to 4, wherein the holding device (2) is formed as a two-part seal in such a way that the first opening (4) and the second opening (5) are formed by joining together the seal parts.
6. The cable connection device according to one of the preceding claims, wherein the core holder (6) and the core device (2) are formed as separate parts.
7. The cable connection device according to one of the preceding claims, wherein a pierce contact (11) for electrically conductively contacting the core (7) is provided and the pierce contact (11) can be passed through an opening (12) in the contact support (10).
8. The cable connection device according to Claim 7, wherein the pierce contact (11) is formed as a pointed contact screw and the contact screw has a female contact (13) at the end facing away from the pointed tip.
9. The cable connection device according to one of the preceding claims, wherein a ring seal is provided between the compression nut (1) and the contact support (10).
10. The cable connection device according to one of the preceding claims, wherein the contact support (10) has a cap nut (15) for fastening the cable connection device to a plug (14) .
11. The cable connection device according to Claim 10, wherein the plug (14) can be fastened in a wall and the plug (14) has a contact pin (16) for electrically conductively contacting the pierce contact (11).
12. The cable connection device according to one of the preceding claims, wherein the cable connection device can be used for a conductor cross section of the core (7) of ≥ 6 mm², preferably ≥ 8 mm² and most preferably ≥ 10 mm².
13. Use of a cable connection device according to one of the preceding claims for the electrically conductive connection of a preferably multi-core cable (3) to an electrical device or for the electrical connection of two preferably multi-core cables (3).

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