MXPA97007794A - Conex element - Google Patents

Abstract

The invention relates to a connection element with electric cutting and holding contact elements in the chamber of a receiving part for the connection without disconnection of electrical conductors, in which the pushing part surrounds a part of the contact elements of Cut and fastening arranged in the camera. The object of the invention is to develop a connection element of the type mentioned at the outset, which enables an easy and reliable connection of insulated electrical conductors without a particular connection tool and at the same time ensures a current carrying capacity as high as possible. conductor, is reached with the placement of the receiving openings 2 for the conductors 3 in the pushing piece 1 in an oblique position with respect to the longitudinal axis of the pushing piece 1, which is at the same time the longitudinal axis of the chamber 17, and with the introduction of the conductors 3 in the cutting and clamping connection contacts 4 located obliquely with respect to the wall of the chamber 17, whose conductors make contact with these. Figure

Description

CONNECTION ELEMENT Description; The invention relates to a connecting element 5 according to the preamble of claim 1. DE-GM 93 13797 describes a connection block for the connection of insulated electrical conductors with electrical contacts in the cutting connection technique and holding by a plug closure, in which open chambers and blocks are disposed above which are equipped with cutting and clamping contacts which pass through them at an angle of 45 * and which make possible a bilateral connection of the connection block. Establishing connections on the side of the The user is produced by means of a closing plug belonging to the connection block. The contact establishment is produced by the movement of the closing plug, which must be passed through pressure with the force of the finger, which for diameters of larger wire and for connections and disconnections to be repeatedly made one after the other can lead to symptoms of operator fatigue. DE 26 10 461 discloses a clamping connector, in which the insulated electrical conductor 25 is inserted through the bore of a plastic sleeve and is pushed with it onto a slotted connection element by means of pliers. flat mouth Here, the cable core is not inserted into the slot as hitherto perpendicular to the slot of the connection element, arranged in a straight or parallel manner with respect to the side walls, but obliquely at an angle of 45 *. DE 44 37 022 Cl describes a connection element with electrical contacts of the connection and clamping connection technique in chambers of a receiving part for the connection without disconnection of electrical conductors, with openings for the reception of electrical conductors. A thrust piece is placed in the chamber of the receiving part, which surrounds a part of the cutting and holding contact elements arranged in the chamber. The electrical conductor with which to make contact is brought through the receiving openings, straight or parallel to the side walls of the thrust piece, to the cutting and clamping contact arranged at an angle of 45 * and is tightened into the contact groove by moving the push piece. It is an object of the invention to develop a connection element of the type mentioned at the beginning, which enables an easy and reliable connection of insulated electrical conductors without a special connecting tool, while ensuring a mechanical load as small as possible and a capacity load by electric current as high as possible for the driver. The solution of this problem results from the characterizing properties of claim 1. The arrangement of reception openings disposed obliquely for the electrical conductor in the pushing part in connection with the cut-and-hold connection contacts, arranged obliquely, in the chamber of the receiving part, results in a considerable increase in the contact surface and thus an increase in the possible load capacity per current. By means of the extended axial displacement of the contact grooves in the conductor, as a consequence of the oblique insertion of the conductor and of the obliquely arranged contacts, the notch effect is further lowered and thereby the mechanical load of the conductor is decreased. By means of the displaced arrangement of the receiving openings for the electrical conductors, an easy and reliable connection of the cutting and clamping contact elements is ensured without particular connection tools and without greater effort. Multiple wire diameters can also be connected and disconnected repeatedly, without the end of the connection suffering from the force to be used. Other advantageous embodiments of the invention result from the dependent claims. The invention is explained in more detail below with the aid of an exemplary embodiment, represented in the drawings, of a connection element with four conduit nozzles. They show: Figure 1 the exploded representation of the parts of the receiving part, Figure 2a the front elevation view of the upper part of the receiving part, Figure 2b the side elevational view of the upper part of the receiving part, the reception part (representation in section), figure 2c the plan view from above of the upper part of the reception part, figure 3a the front elevation view of the lower part of the reception part (representation in section ), Figure 3b shows the top view of the lower part * of the receiving part, Figure 4a the side elevation view of the pushing part in sectional representation, Figure 4b the perspective view in front of the push piece, figure 4c the top plan view of the push piece, figure 5 the front elevation view of a cut-and-hold connection contact, figure 6 the schematic representation of the contact surface in a cable core and figure 7 the principle representation of the connection contacts arranged in the thrust piece according to figure 5.

According to the representation in FIG. 1, the connection element consists essentially of a pushing part 1, an upper part 21, a lower part 22, a cutting and holding connection contact 4, in which the upper part 21 and the lower part 22 form a receiving part 18, in which the cutting and holding contact element 4 is arranged. The cutting and holding connection contact 4 according to FIG. 5 consists of cutting and clamping contacts 5, 9. and a fork contact 14, which are joined together in one piece through a bridge 15. The cut-off contact 5 contains two holes 7, 8, which are connected to one another through a contact groove 6. , in which the drill 7 forms an elongated hole with introduction bevels. The cutting and clamping contact 9 has two bores 11, 12, which are connected to each other through a contact groove 10, the bore 11 being formed as an elongated hole with insertion bevels. The cutting and holding contact 9 is extended upwards to a socket 16, for example a test medium. The shaping of the holes 7, 11 as an elongated hole ensures the reliable introduction of the cable webs 3 through the receiving openings 2 disposed obliquely in the pushing piece 1 (FIGS. 4a to 4c). The cutting and clamping contacts 5, 9 are self-supporting closed cutting and clamping contacts and are respectively formed at an angle of 45 'with respect to the connecting bridge 15. The fork contact 14, bent downwards from the bridge 15 and it runs in a plane parallel to the bridge 15, it is an open socket with a contact groove 13. The fork contact 14 is freely accessible, with the insertion bevels 36 of its contact groove 13 facing downwards, from the floor 47 of the lower part 22 of the receiving part 18 (FIG. 3a) and serves, for example, to make contact with a contact path (not shown). In the present example, the two cutting and clamping contact elements 4 according to FIG. 5 are positioned in such a manner in both chambers 17, 17 'of the receiving part 18 that respectively the cutting and clamping connection contact 9 with the socket 16 of one of the cutting and clamping contact elements 4 is inserted into one of the chambers 17, 17 'and its cutting and clamping connection contact 5 is inserted into the other adjoining chamber 17, 17', and vice versa ( Figures 1, 7). Correspondingly to the representation in FIG. 7, an incoming cable core a is connected with a protruding cable core a 'through the cutting and clamping contact 9 of the cutting and clamping connection contact 4 in the chamber 17 and through the cutting and clamping contact 5 of the cutting and holding connection contact 4 in the chamber 17 'of the receiving part 18. Similarly, the cable webs Jb, b' are connected through the contacts 9 ' , 5 'of the connection contact 4'. The receiving part 18 is formed, according to the representations in figures 1, 2b, from the upper part 21 (figures 1, 2a to 2c) and the lower part 22 (figures 1, 3a, 3b), which are joined together through fitting arrangements 23 (figure 1), the lower part 22 having other fitting arrangements 24 (figures 1, 3a) for fitting onto a support piece (not shown). The upper part 21 of the receiving part 18 (figures 1, 2a to 2c) has both chambers 17, 17 'open upwards. Each of the chambers 17, 17 'is formed, according to FIGS. 2 a, 2 b, by a slotted rear wall 20, elastically realized, with a closed slot 25 for receiving the fitting arrangement 26 of the push piece 1 (FIGS. 4a to 4c), by two side walls 37, 38 (figure 2b), of which a side wall 38 forms the partition wall relative to the adjoining chamber 17, by a front wall 39 and a floor plate 40 common to the two cameras 17, 17 '(FIGS. 2b, 2c) with two holes 41, 42 for plugging the two cutting and holding contact elements 4 from below. The floor plate 40 is placed at a height such that a space 43 is free below it. height of the connecting bridge 15 of the cutting and clamping contact element 4. In the two outer limits 44, 45 opposite of this space 43, the engagement openings 46 (FIGS. 1, 2b) are made by recess for the fitting elements 23. (figure 1) in the lower part 22. The chambers 17, 17 'have, respectively, an intermediate wall 28 with grooves 19 for protection against tightness of the cable webs 3 to be introduced (figures 1, 2b, 2c) . The lower part 22 (FIGS. 1, 3a, 3b) is formed by a floor plate 47 with passage nozzles 48, 49 (FIG. 3b) for the fork contacts 13 of both cutting and clamping contact elements 4, by bridges 50 facing upwards (FIGS. 1, 3a, 3b), which are provided in part with the fitting arrangements 23 for connection with the upper part 21, and by fitting arrangements 24 oriented downwards for the detachable connection with the work piece. support not represented.

The passage nozzles 48, 49 (FIG. 3b) are insulated from one another through the intermediate wall 33, which is shaped correspondingly to the geometry of the bridge of the cutting and holding contact element 4. The intermediate wall 33 separates the bridges 15, adjacent on both sides to the intermediate wall 33, of both cutting and clamping contact elements 4. Correspondingly to the representation in figures 1, 4a to 4c, the pushing part 1 is manufactured in one piece from of an insulating material.

The push piece 1 has correspondingly to FIGS. 4a, 4b both receiving openings 2, which are made as blind holes arranged obliquely up to a stop wall 27 and which cross there a recess 29, in which the intermediate wall is inserted. of the upper part 21 (FIG. 2b) with the grooves 19 for the protection against tightness of the cable webs 3, when the pushing part 1 is inserted from above into the receiving part 18. The pushing part 1 has the rest is a receiving element 30 for the cutting and holding contact element 4. The receiving element 30 has, correspondingly to the representation in FIG. 4c, grooves 31, 32 open without interruption, into which parts of the two cutting and holding connection elements 4 from below (not shown) and through which a signal acquisition is possible. In the receiving element 30, the engaging element 26 is arranged, which cooperates with the closed slot 25 in the rear wall 20, divided and elastically realized, of the chamber 17 of the receiving part 18 (FIG. 2a). As shown in the plan view from above of the pushing piece 1 in figures 4b, 4c, the receiving openings 2 are arranged in a displaced backward manner. Through this, the conductors 3 do not contact at the same time when being pressed inwards, but one after the other with the connection contacts 4, so that a lesser use of force is necessary. In order to more easily separate the pusher part 1 from the connection position, a bracket 35 is provided, behind which an appropriate tool can be inserted, if necessary, to separate the lever 1 by means of leverage. The cap 34 (FIG. 4a) the thrust piece 1 can be covered with a closure cap not shown, which, among other things, also makes it possible to press the thrust piece 1 inwards. For the connection of the connection element, the thrust piece 1 is brought into position of connection I (figure 2a). The connection position I is defined by a narrowing 52 acting as a stop in the groove 25 of the rear wall 20 of the chamber 17 (FIG. 2a). In the connection position I, the openings 2 in the pushing part 1 are superimposed on the bore 7 of one of the cutting and clamping contact elements 4 and to the bore 11 of the other cutting and clamping contact element 4, and can electrical conductors 3, for example the wire souls a, b of a telecommunication cable, are introduced from outside to the stop wall 27 in the pushing part 1. After introducing the electrical conductors 3 into the opening 2 of the receiving 18 until abutting the stop wall 27, the pushing piece 1 is moved by force of the hand down to position II (figure 2a). When this occurs, the inserted electrical conductors 3 are moved from the bore 7 or respectively 11 of both cutting and clamping contact elements 4 towards the contact grooves 6 or respectively 10 of the cut-and-contact contact elements 4 (FIG. ) and establish contact with them. In this position II, the pushing piece 1 is locked in the chamber 17, to avoid undesired separation (not shown). By means of the receiving openings 2 arranged obliquely for the electrical conductors 3 in the thrust piece 1, a considerable increase in temperature is achieved together with the cutting and clamping connection contacts 4 arranged obliquely in the chambers 17 of the receiving part 18. contact surface 53 on conductor 3 (figure 6). The illustration in FIG. 6 also shows the contact grooves, displaced axially with respect to the known connections, in the electrical conductor 3.

When disengaging the interlock is removed and the pushing piece 1 is brought back to the first position I. When this occurs, also the conductors 3 are brought back to the holes 7 or respectively 11 of the contact elements of cutting and clamping 4, from which the conductors can be withdrawn 3. The connection element can also be designed as a connecting strip. An arbitrary number of connection elements can be arranged next to one another, for example for a double 8-core strip or 10 double-ones, four or five connecting elements are arranged side by side according to the present embodiment. A connection element serves for the connection of two double cores. It is also possible to use push pieces 1 with a receiving opening 2 for the electrical conductor 3, in which correspondingly shaped cutting and clamping connection elements 4 are then arranged. The push pieces 1 with a receiving opening 2 can be arranged side by side at will, and can find application for example, in addition to the application in telecommunications and data technology, in the measurement and test technique .

Claims (10)

1. CLAIMS 1. A connection element with electric cut-and-contact contact elements in the chamber of a receiving part for the connection, without disconnection, of electrical conductors, with a thrust piece with at least one opening for the reception of the electrical conductors, in which the pushing part surrounds a part of the cutting and holding contact elements arranged in the chamber, characterized in that the receiving opening (2) for the conductor (3) in the pushing part (1) it is disposed in an oblique position with respect to the longitudinal axis of the thrust piece (1), which is at the same time the longitudinal axis of the chamber (17), and in that the conductor (3) is inserted into the cutting connection contact and clamping (4), located obliquely with respect to the wall (longitudinal axis) of the chamber (17), and is in contact with it. A connection element according to claim 1, characterized in that the receiving opening (2) is arranged at an angle of 45 'to the longitudinal axis of the thrust piece (1), and because the conductor (3) is inserted in the cutting and holding connection contact (4) arranged at an angle of 45 * with respect to the wall of the chamber (17) and in contact with it. A connection element according to claim 1, characterized in that the push piece (1) can be retained in the chamber (17) of the receiving part (18). . A connecting element according to claims 1 to 3, characterized in that the receiving part (18) has holding grooves (19) for the protection against tightness of the insulated electrical conductors (3) introduced. A connection element according to claims 1 to 4, characterized in that at least two chambers (17) with at least two thrust pieces (1) are respectively arranged in a row next to one another. - - 6. A connecting element according to claims 1 to 5, characterized in that the receiving part (18) is engageable on a support part and can be combined with other functional modules. A connection element according to claims 1 to 6, characterized in that each thrust piece (1) has two reception openings (2) for the electrical conductors (3). A connecting element according to claim 1, characterized in that the cutting and clamping connection contact (4) is formed by a closed and self-supporting first cutting and clamping contact (5) at an angle of 45 * with a groove of contact (6), which joins two holes (7, 8) to each other, by a second cutting and clamping contact (9) closed and self-supporting at a 45 'angle with a contact groove (10), which joins another two holes (11, 12) with each other, and by a fork contact (14) with a contact groove (13), in which the cutting and holding contacts (5, 9) and the fork contact (14) are joined one piece through a bridge (15). 9. A connection element according to claim 8, characterized in that one of the bores (7, 11) of the first and second cutting contact (5, 9) of the cutting and holding contact element (4) are elongated holes with introduction bevels. A connecting element according to claims 8 and 9, characterized in that a socket (16) is formed on the free end of one of the cutting and holding contacts (9) of the cutting and holding contact element (4). LIST OF REFERENCE SYMBOLS Push piece Reception opening Conductor (cable core), 4 'Cut-and-hold connection contact, 5' Cut-and-contact contact Contact slot Drill hole, 9 'Cut-and-contact contact 0 Contact groove 1 Drill Drill Contact groove Fork contact (socket) 5 Jumper 6 Socket 7, 17 'Camera 8 Receiving part 9 Clamping slot 0 Rear wall Top piece Bottom part Lace arrangement Lace arrangement Slot Laying arrangement Butt wall Intermediate wall Recess Element reception Slot Slot Intermediate wall Casing Footboard Intake bezel Intermediate wall Intermediate wall Wall Floor plate Drill Drill Space Limit Limit Fitting opening Floor plate Passage nozzle Step nozzle Bridge Narrowing 53 Contact surface I Connection position II Connection position a, a 'Cable core b, b' Cable core