WO2004105187A1

WO2004105187A1 - Plug or socket for a plug-in-connection

Info

Publication number: WO2004105187A1
Application number: PCT/EP2004/004688
Authority: WO
Inventors: Othmar Gaidosch
Original assignee: Hirschmann Electronics Gmbh & Co. Kg
Priority date: 2003-05-26
Filing date: 2004-05-04
Publication date: 2004-12-02
Also published as: DE10323613A1; DE10323613B4

Abstract

The invention relates to a rapidly connected plug or socket for a plug-in-connection comprising at least one contact element (1) arranged in a contact carrier (2). The contact element (1) can be placed in contact with a wire (7.1) of a cable (7). According to the invention, contacting means are provided such that contact can be established between the wire (7.1) and the contact element (1) by impinging a spring force thereon.

Description

DESCRIPTION

Plug or socket of a plug connection

Technical field

The invention relates to a plug or a socket of a plug connection or a connector in quick connection technology with at least one contact element arranged in a contact carrier according to the features of the respective preamble of the independent claims.

State of the art

Quickly connectable connectors that have sockets and associated plugs are known. Rapid connection technology is understood to mean that a cable has a plurality of lines, the end of the individual lines being connected to associated contact partners which are arranged in the plug or the socket. The contact partners are, for example, contact pins of a plug or socket elements of a socket. Two technologies are known in the field of quick connection technology, on the one hand the insulation displacement technology and on the other hand the penetration technology. In both technologies, the ends of the cables of the cable are inserted into a wire-receiving part, fixed in position there and, in the insulation displacement technology, penetrated by an insulation displacement contact at approximately a right angle, so that this insulation displacement contact reaches the core of the wire and thus establishes the contact from this to the contact partner. As a rule, the insulation displacement contact and the contact partner are formed in one piece. In the penetration technology (DE 44 18 259 C1), a spit is connected to the contact partner or is formed in one piece and penetrates axially into the end of the line when the end of the line is inserted into the wire-receiving part, so that the contact is established in this way , The quick connection technology has proven itself, so that nowadays finished sets for plugs or sockets of a plug connection are offered, which the end user only has to finish assemble with his cable. The cables used so far were cables that either have no shielding or, if shielding does exist, it is not connected to the plug or socket.

Presentation of the invention

The invention is based on the provision of a plug or a socket of a plug connection or a connector for the quick connection technology, which are further improved with regard to the connection process and the contact reliability.

This object is achieved by the features of the respective independent claim 1 or 2.

According to the invention it is provided that contacting means are provided in such a way that the contacting between the line core and the contact element takes place under spring force. This enables a very fast and very efficient assembly with regard to the connection of a single or multi-core cable to the plug or the socket. Depending on the configuration of the contacting means, the individual line wires of the cable can be stripped or contacted with the contact element without prior stripping. Furthermore, tool-free and multiple, non-destructive installation is possible, so that incorrect assignments for a multi-pin connector can be corrected, for example. Due to the application of spring force (resilience), contact forces remain constant to a large extent, especially taking into account environmental influences (such as temperature fluctuations, vibrations and the like) or long-term influences (such as creep, relaxation, material changes and the like). In addition, the contacting means acted upon by the spring force according to the invention makes it possible to connect different cross sections or diameters of line wires, so that a wide range of applications for the plug connections is realized. In addition, the quick connection of line wires to the contact element is possible irrespective of the structure of the line wire (e.g. stranded wire or wire), the number of line wires of the cable and the like. Another advantage is due to the simple assembly in the automation option, so that cables can be automatically connected to the corresponding plug or socket of a plug connection using quick connection technology.

In order to achieve a compact construction of the plug or the socket, it is provided that the spring force is applied largely in the axial direction to the line wire. This takes advantage of the fact that there is usually enough space in the axial direction for plugs or sockets of a plug connection, while in the radial direction, i.e. There is not always enough space available in the direction transverse to the direction of insertion. However, this does not mean that spring-loaded contacting means are excluded, which come into contact with the line core radially for the purpose of contacting it. A compression spring is particularly suitable for achieving an axial spring force, which in an embodiment according to the invention is arranged at least partially, in particular completely, coaxially in the contact element. On the one hand, this has the advantage that the compression spring can be integrated in the contact element, which further increases the compactness of the structure. In addition, the electrical conductivity of a compression spring made of metal is used in order to increase the currents which are transmitted via the line core, the contacting means and the contact element, since the compression spring can also be used for the electrical conduction of the currents. Alternatively, all means are conceivable that apply a spring force with which the

Line wire is electrically connected to the contact element. Here, for example, elastically deformable and electrically conductive plastics are also suitable, which can be used between the contact element and the line wire for the purpose of contacting.

The configurations described at the outset and their advantages, which relate to a plug or a socket of a plug connection, apply equally well to the connector according to the invention, which makes it possible to connect a line core of one cable to a line core of a further cable. In the case of such a connector, it should be pointed out in particular that it is symmetrical and thus has many identical parts, which has a positive effect in terms of reducing the number of parts and the costs of the parts.

Two exemplary embodiments, one plug connector and one connector for connecting two line wires, to which the invention is not limited, are described below and explained with reference to the figures. Brief description of the drawing

Show it

FIG. 1 components of a plug of a plug connection,

Figure 2 connector for connecting two line wires together.

Ways of Carrying Out the Invention

FIG. 1 shows components of a plug of a plug connection using quick connection technology, parts of the plug known and available per se, such as a housing, strain relief and the like, being omitted for the purpose of simplified illustration. The plug has a contact element 1, the contact element 1 being divided into several areas. Viewed in the direction of insertion in its front part, the contact element 1 consists of solid material and is designed as a contact pin; Depending on the application, a contact socket, hybrid contact, circuit board contact, solder contact, etc. can also be provided. In its area with which the contact element 1 is to be contacted with the line core of a cable, it is designed as a contact sleeve 1.1, that is to say that it has an elongated opening (for example bores) there. In this elongated opening, a compression spring 1.2 is used to produce the spring force for the contact, which is thus at least partially, but in particular completely coaxially in the contact element 1. In order to prevent the compression spring 1.2 from jumping out of the contact sleeve 1.1, a travel limiting stop 1.1.1 is present, which can be an integral part of the contact sleeve 1.1 or is connected to it after the compression spring 1.2 has been inserted into the contact sleeve 1.1. The compression spring 1.2 is arranged to be longitudinally displaceable within the contact element 1 and acts on a correspondingly designed contact piston 1.3, so that the contact piston 1.3 is likewise at least partially displaceable coaxially in the contact element 1 and is also mounted therein. With this arrangement of the spring-loaded contact piston 1.3 in the contact element 1, which in turn is located in a contact carrier 2 of the plug or the socket, an axially acting spring force is generated, which is transmitted via the contact piston 1.3 to the line wire and thus the electrical contact between the contact element 1 and the line wire, as will be described later, is produced. At this point it should also be mentioned that the contact wheel 1.3 has a longitudinal slot 1.3.1 can be, which can alternatively also be provided on the contact sleeve 1.1 or both on the contact piston 1.3 and on the contact sleeve 1.1. Depending on the geometric and dimensional design, this creates a transverse suspension and, as a result, a contact force between the contact sleeve 1.1 and the contact piston 1.3, so that the electrical conductivity is significantly improved. As an alternative to slitting, such contact forces can also be generated by further measures, such as for example by appropriate fitting dimensions, impressions and the like. As already described, these contact forces acting in the radial direction are supplemented by the contact force of the compression spring 1.2 acting in the axial direction.

Another component of the exemplary embodiment shown in FIG. 1 is a holder 4 which can be connected to the contact carrier 2 via fastening elements 3, the holder 4 in turn being connectable to a clamping part 6 via fastening elements 5. The holder 4 and the clamping part 6 have the task, on the one hand, to take up the end region of a single or multi-core cable 7 and to fix it there in a fixed position. The fastening elements 3 and 5 are releasable fastening elements between the contact carrier 2 and the holder 4 or between the holder 4 and the clamping part 6, such as screw connections, snap connections, union nuts or the like. If these fasteners 3 and 5 are designed to be non-detachable, they are, for example, adhesive connections or other connection methods with which the parts involved are connected to one another in a non-detachable manner. These are, for example, ultrasonic welded connections if the parts involved (contact carrier 2, holder 4, clamping part 6) consist of a corresponding weldable plastic. The holder 4 in turn has a contact chamber 4.1, in which the contact piston 1.3 is arranged to be longitudinally displaceable, and the contact chamber

4.1 can serve as a guideway for the contact piston 1.3. Furthermore, there is a conductor receiving area 4.2 which has an axially parallel, in particular a beveled, outer surface. There is also a conductor clamping area 4.3, which likewise has an axially parallel, in particular in turn a beveled, outer surface. In addition, 4 mounting areas are provided on the holder, which are designed, for example, as a circumferential collar. Thus, a fastening area 4.4 is formed towards the contact carrier 2 and has a contour that corresponds to a fastening region 2.1 of the contact carrier 2, the fastening regions 2.1 and 4.4 coming into contact with the fastening elements 3. The same applies to a fastening area 4.5 of the holder 4 to a corresponding fastening area 6.2 of the clamping part 6. Because the clamping part 6 has a clamping element, whereby the cable 7, after it has been inserted into the contact chamber 4.1, is fixed in position by fastening the tensioning part 6 to the holder 4 and is no longer axially displaceable. For this purpose, in the exemplary embodiment shown in FIG. 1, the tensioning element of the tensioning part 6 has an axially parallel, in particular a beveled, outer surface 6.1, which corresponds to a corresponding recess in the holder 4. In addition, a fastening area 6.2 of the clamping part 6 corresponds to the fastening area 4.5 of the holder 4, the fastening areas 4.5 and 6.2 in turn receiving the fastening elements 5. The cable 7 is clamped by the clamping element with the beveled outer surface 6.1 and the cylindrical opening of the holder 4, after which the clamping part 6 has been fastened to the holder 4 via the fastening elements 5. Here, too, detachable and non-detachable connections come into consideration, with snap connections being of particular advantage due to the tool-free assembly. The cable 7 in turn has an outer jacket and an electrically conductive line wire 7.1, which is electrically contacted with the contact piston 1.3, after the cable 7 has been inserted into the contact chamber 4.1 and fixed there. In the case of the connection of a plurality of line wires 7.1 of a cable with respectively associated contact elements 1, it is conceivable that the holder 4 has a plurality of contact chambers 4.1 into which the plurality of line wires of the cable can be inserted. It is also conceivable that one line wire is fixed in its position in the contact chamber or that the several line wires are inserted in the associated contact chambers and then the entire cable is fixed in its position.

It is also shown in FIG. 1 that the contact surface of the contacting means, in particular the contact surface of the contact piston 1.3, for the line core 7.1 is designed to be concave, convex (pointed) or flat (flat). In this illustration, it is assumed that the contacting of the contact piston 1.3 with the line core 7 takes place essentially in the axial direction. Of course, it is also conceivable that contact is made with the contact piston 1.3 spring force from the radial direction. The assembly and function of the elements described above is as follows:

Depending on the design of the contact area 1.3.2 of the contact piston 1.3, it is necessary, in particular in the case of the concave or the flat contact surface 1.3.2, to strip the line wire 7.1 beforehand over a defined length. With the convex contact surface

1.3.2, in particular in the case of a conical or acicular contact surface, this can Work process is eliminated. Then the cable 7 is threaded axially through the clamping part 6 and inserted into the conductor receiving area 4.2 of the holder 4. Then the clamping part 6 and the holder 4 are brought together and brought together with the fastening elements 5 via the fastening regions 6.2 and 4.5 in such a way that a cross-contraction of the clamping element 6.1 towards the cable 7 takes place due to the interaction of the contacting surfaces of these parts. This interaction can take place between the jacket surfaces, the front surfaces or a combination of these two possibilities. Depending on the material (compressible, ie rubber-like material or elastic, but relatively incompressible material such as plastic or metal) and design, a frictional or partial pressing of the clamping element 6.1 in thus arises between the clamping element 6.1 and the cable 7 the outer sheath of the cable 7 predominantly a positive connection, whereby an axial retraction of the cable 7 or in particular the line core 7.1 is prevented as a result of an axial application of force. The holder 4 provided in this way with the tensioning part 6 and the cable 7 is then brought together with the contact carrier 2, which has the at least one contact element 1. This is done in particular in such a way that the line core 7.1 and the contact element 1 are in alignment with one another, so that the holder 4 and the contact carrier 2 can be joined together with the fastening elements 3 via the fastening regions 4.4 and 2.1 such that between the contact piston 1.3 and the wire 7.1 under

Action of the at least partially compressed compression spring 1.2 a defined contact pressure and this creates an electrical contact. The version described above referred to a connector that is single-pole. Of course, it is conceivable to implement a multipole plug and also a multipole socket in a corresponding manner, for which purpose the contact elements and the line wires must be present within the cable in a corresponding number. The same applies to the contact carrier 2, which then accommodates a plurality of contact elements 1 in a corresponding manner and the holder 4 in a corresponding manner has a plurality of contact chambers, and the fastening elements 3 and 5 can also be designed as corresponding coaxial union nuts or screws.

FIG. 2 shows a connector between two line wires of one cable each, the connector being constructed largely analogously to the plug, as shown in FIG. 1 and has already been described. In a modification of the embodiment according to FIG. 1, in the connector according to FIG. 2, the contact carrier 2 is designed in such a way that, viewed in the axial direction, it has one on one line wire in its end regions 7.1 acting contact piston 1.3, that is, the peculiarity of this solution is that the structure of the contact element 1 is symmetrical and thus two identical or different line wires 7.1 can be connected to its two ends. This means that with such a connector, two similar or different line wires can be connected to one another in a quick, simple and flexible manner. The connector shown in Figure 2 is not limited to the single-pole version, but a multi-pole version is also conceivable. With this connector, too, electrical contacting by means of spring force, as has already been described for FIG. 1, is used.

In the preceding description, the terms "plug" and "socket" were used in the following context:

A plug connection can consist on the one hand of a plug and a socket, which are connected by means of the quick connection technology at the end of a line and which are plugged together, screwed together or the like for the electrical contacting of the cables. The part of such a plug connection which is brought together with a plug can also be referred to as a socket, socket, coupling instead of "socket". In addition, it is possible that the plug or socket is not attached to the end of a cable by means of quick connection technology , but is a fixed or detachable component of a sensor, an actuator, a device or the like. The term “plug” or “socket” thus includes all those parts which are necessary in order to make a cable capable of being plugged in. These parts are in particular around the contact elements, which can be fixed or fixed in the contact carrier, the strand holder and a housing of the plug or socket in which the parts mentioned are integrated, with other components (such as a union nut or a union screw for screwing a plug connection, strain relief and other) existing can be different.

Claims

1.

Plug or socket of a plug connection using quick connection technology with at least one contact element (1) arranged in a contact carrier (2), the contact element (1) being contactable with a line wire (7.1) of a cable (7), characterized in that contacting means are provided in this way , the contact between the line wire (7.1) and the contact element (1) is applied with spring force.

Second

Connector in quick connection technology with at least one contact element (1) arranged in a contact carrier (2), wherein a line wire (7.1) of a cable (7) can be contacted with a further line wire of another cable via the contact element (1), characterized in that contacting means are provided in such a way that the contact between the respective line wire (7.1) and the contact element (1) is applied with spring force.

Third

Plug or socket or connector according to claim 1 or 2, characterized in that the contacting means have a compression spring (1.2).

4th

Plug or socket or connector according to claim 3, characterized in that the compression spring (1.2) at least partially arranged coaxially in the contact element (1).

5th

Plug or socket or connector according to one of the preceding claims, characterized in that the contacting means have a movable contact piston (1.3) which is acted upon by spring force and which can be brought into contact with the line wire (7.1).

6th

Plug or socket or connector according to claim 4, characterized in that the compression spring (1.2) acts on the contact piston (1.3) and the contact piston (1.3) is at least partially slidably mounted coaxially in the contact element (1).

7th

Plug or socket or connector according to one of the preceding claims, characterized in that the contact surface of the contacting means, in particular the contact surface of the contact plunger (1.3), for the line core (7.1) is concave, convex (pointed) or flat.

8th.

Plug or socket or connector according to one of the preceding claims, characterized in that the end of the cable core (7.1) can be fixed in a holder (4).

9th

Plug or socket or connector according to claim 8, characterized in that the holder (4) with the contact carrier (2) and possibly with a clamping part (6) connectable and / or is arranged in a housing of the plug or the socket or the connector ,

10th

Plug or socket or connector according to Claim 8 or 9, characterized in that the holder (4) has contact chambers (4.1) in a corresponding number of the line wires (7.1) to be contacted.