Cable connecting device

Abstract

The invention relates to a cable connection device, comprising at least one contact carrier (1), which comprises a busbar having a contact section (2) and a clamping element (3) having a clamping arm acting on the contact section (2), the contact section (2) of the busbar being movable on the contact carrier (1) relative to the clamping element (3).

Description

Technical Field

[0001] The present invention relates to a cable connection device. The cable connection device is usually embedded in an insulating housing and generally has a contact carrier with a busbar. In order to connect an electrical conductor, the electrical conductor is usually clamped and fixed in the contact carrier, preferably clamped and fixed to the busbar. Background Art

[0002] For clamping, a clamping spring is used, in particular a two-arm leg spring with an elastic contact arm and a more or less rigid support arm. The electrical conductor is clamped between the busbar and the contact arm. The contact arm serves as a clamping arm or clamping leg. The term "contact arm" is used in this document to indicate that the electrical conductor must withstand the clamping force of the contact arm in order to establish a permanent electrical contact between the conductor and the busbar.

[0003] In principle, cable connection devices are used to press an electrical conductor (e.g. a strand or wire of a cable inserted into a contact carrier) against a busbar by means of a contact arm, thereby connecting it to the busbar in an electrically conductive manner and at the same time mechanically holding it on the busbar. In the so-called "push-in" technology, the electrical conductor is simply inserted into the cable insertion opening on the contact carrier, so that it slides between the clamping arm of the clip and the contact section of the busbar and is clamped and fixed between the contact arm and its contact section, preventing it from being pulled out in the opposite direction of its insertion. This "push-in" connection technology is particularly user-friendly and can be easily performed by the user with both hands with only a small amount of manual work.

[0004] However, the "push-in" technique requires that the electrical conductor has sufficient rigidity and stability. The individual wires of the conductor must be sufficient and sufficiently rigid, or the conductor must be equipped with a conductor end sleeve. However, if a conductor of insufficient rigidity is inserted without a conductor end sleeve, it may not be possible to remove the clamping legs of the clamping spring from the contact section of the busbar, in particular, it is impossible to bend it apart. In order to solve this problem, in the prior art, an external tool or manipulator is used to remove the clamping legs from the contact section of the busbar, and then the thin wire is pushed between the clamping legs and the contact section of the busbar. If the manipulator is released at this time, the thin wire is clamped and fixed to the contact section of the busbar by the contact arm and an electrically conductive connection is established, which can prevent it from being accidentally pulled out. However, it is very inconvenient to complete this operation with both hands, because the contact carrier and the cable must be held at the same time, and the manipulator must also be operated, which actually requires three hands to complete.

[0005] Patent document WO 2018 / 153862 A1 discloses a spring joint having a pivotally supported leg spring. A pivot lever acts on the supporting leg of the leg spring. The supporting leg transmits the pivot movement of the pivot lever to the clamping leg of the leg spring, so that the clamping leg can be moved away from the contact section of the busbar in order to open the clamping point between the contact section and the clamping leg. In addition to the contact section and the clamping leg, a pivot support part and a pivot lever for operating the leg spring must be provided for the leg spring, which seems to be very complicated in terms of structure.

[0006] Patent document DE 10 2020 119 129 A1 discloses a plug connector module with a connection component. The connection component also includes a leg spring as a clamping member, which has a fixed support leg and a movable clamping leg. The clamping leg is supported on a slider, which can be displaced horizontally against the force of a return spring. The slider has a guide slope, on which a complementary guide slope of a vertically movable manipulator slides. The two guide slopes together form a transmission device with a sliding key, thereby converting the vertical movement of the manipulator into a horizontal movement of the slider as a horizontal driving force for the slider. In this way, the slider can be reciprocated horizontally between two functional positions, namely the "pushing position" and the operating position. In the "pushing position", the clamping leg of the leg spring rests on the contact section of the busbar, while in the operating position, a groove-shaped free space is left between the clamping leg and the contact section. In the operating position, the wire or stranded wire can be inserted into the free space between the clamping leg and the contact section without resistance, and the conductor can also be removed from the contact carrier again. On the other hand, the "push-in position" allows the conductor to be connected by simply inserting the conductor between the contact section of the busbar and the clamping leg of the spring. In order to lock the slider and the leg spring in the "push-in position", the connection assembly requires the spring pressure of the return spring. In order to lock the slider and the leg spring in the operating position, the mechanical locking element engages behind the front edge of the slider, and the slider is horizontally displaced relative to the "push-in position". The above-mentioned existing connection assembly requires several parts, that is, in addition to the slider and the leg spring, an actuator, a return spring and a locking element are also required, and the structural space required in the cable connection device is correspondingly large. In addition, the vertically movable actuator on the side of the slider seems to be difficult to operate during installation. Summary of the invention

[0007] In view of the above, an object of the present invention is to simplify the structure of a cable connecting device.

[0008] The solution for achieving the above object of the present invention is the cable connection device according to claim 1. The preferred technical solutions of the present invention can be found in the dependent claims.

[0009] In all known cable connections, the operating position with free space between the clamping element and the contact section is achieved by moving the clamping element out of its clamping position. Generally speaking, as in the prior art mentioned above, the clamping leg of the leg spring is pivoted into the operating position by means of a slide, a manipulator or other means. This requires overcoming a relatively large spring force. If the leg spring is in the operating position for a long time, the spring force of the leg spring may weaken. The present invention adopts a completely different and novel approach.

[0010] According to the invention, the contact section and the clamping element are designed to be movable relative to each other on the contact carrier. In this way, the contact section can be easily removed from the clamping element. Only relatively small forces are required for this purpose, which is relatively gentle on the material. In addition, in the operating position in which a groove-shaped free space is left between the clamping element and the contact section, the clamping element is no longer subject to any load. The cable connection device can also be designed so that the clamping element can be moved back and forth relative to the contact section.

[0011] In a preferred embodiment, the contact section and the clamping element are moved relative to each other in a translational movement. This can be easily achieved by a simple guide rail on the contact carrier.

[0012] In another advantageous embodiment, the contact section and the clamping element are connected to each other by a locking mechanism. A conceptual model for such a locking mechanism is the push mechanism of a ballpoint pen. The push mechanism of a ballpoint pen is designed in such a way that in its rest position, the refill is retracted into the pen barrel of the ballpoint pen, while in its writing position, the refill extends from one end of the ballpoint pen. An actuation once causes a change, for example, from the rest position to the writing position. A further actuation (corresponding to the above actuation at least in the direction of movement) causes the opposite change, i.e. in the above example, from the writing position to the rest position.

[0013] Thus, there are preferably four sounds or pauses in the end, two of which are caused by the two manipulations (i.e., from the rest position to the writing position and back to the rest position), and the other two sounds or pauses are caused by the spring energy. The first manipulation causes the spring to absorb energy, so that when the spring is released, the locking geometry of the locking transmission mechanism is pressed against the stop, which is completed by the spring. When further force is applied due to the manipulation, energy is stored again, and the locking geometry or the locking transmission mechanism is released from the stop and is pressed back by the spring to the direction of the initial position.

[0014] With the locking mechanism, in the so-called actuated functional position of the locking mechanism, there can be free space between the contact section of the busbar and the clamping arm of the clamping element, while in the second, non-actuated position, i.e. the "pushed-in position", the clamping arm of the clamping element bears against the contact section of the busbar. The locking mechanism, which connects the contact section to the clamping element, allows the contact section and the clamping element to be very easily displaced relative to one another, in particular to be displaced relative to one another, so that the desired functional position can be selected easily and conveniently.

[0015] In a further advantageous embodiment, the locking mechanism is designed as a cam mechanism. For this purpose, a guide is articulated on the contact section or the clamping element. The guide engages with its free end in the control cam. The guide is guided displaceably in the control cam via its free end. If the guide is articulated on the contact section, the control cam is arranged on the clamping element. On the other hand, if the guide is arranged on the clamping element, the control cam is located on the contact section.

[0016] Particularly advantageously, the control cam has a geometric shape of a lowercase letter D. The upper end of the d-shaped vertical band serves as the starting point of the guide in the control cam. The lower end of the d-shaped vertical band serves as the inflection point of the control cam. At the inflection point, the guide transitions from the d-shaped vertical band to the c-shaped arc on the left side of the d-shaped vertical band. The c-shaped arc thus serves as a return path for the guide back to the starting point.

[0017] Particularly preferably, the geometry in the area of ​​the C-shaped arc has a taper for guiding the guide, when viewed from above. This means that the lower section of the d in the transition area between the d-shaped vertical strip and the C-shaped arc has no edges, while the upper transition area between the C-shaped arc and the d-shaped vertical strip preferably has edges. This has the effect of guiding the guide by causing it to twist in the direction of the C-shaped arc so that it finds its way into the C-shaped arc without always moving only in translation.

[0018] According to the basic concept of the pressing mechanism of the ballpoint pen, the starting point of the guide in the control cam and the inflection point area of ​​the guide in the cam both form a receiving contour into which the free end of the guide can be snapped. The receiving contour at the starting point of the guide in the control cam corresponds to the manipulated position of the clamping member relative to the contact segment, while the fixing of the guide in the inflection point position corresponds to the non-manipulated position of the contact segment and the clamping member, i.e. the "pushed-in position". In this way, it is possible to ensure that the clamping member and the contact segment are firmly locked in the corresponding selected functional position by simple means. The clamping member or the contact segment can be easily switched back and forth in the contact carrier.

[0019] The shape of the control cam is not limited to the D-shape. In other embodiments, preferably, the control cam is substantially in the shape of an acute triangle, with two straight guide strips and a locking position formed therebetween as the third side of the triangle. The transition between the various positions can be achieved by pre-tensioning complementary guides (or spring elements) and the inclined surfaces and radii formed in the profile. One of the guide strips is designed to guide the guide from the starting point at the intersection of the two guide strips in the control cam to the locking position between the guide strips, while the other guide strip is designed as a return guide device that guides the guide back to the starting point in the control cam.

[0020] In another advantageous embodiment, the contact section is designed as a U-shaped contact cage in order to enhance the protection of the contact point from external influences. On the contact section, a tab is also bent out from the contact cage as an adapter for the support arm. In another advantageous embodiment, the clamping element is designed in a conventional manner as a leg spring, which has a clamping leg as a clamping arm, and the clamping leg can be elastically moved relative to the support leg. Advantageously, a cam plate is adapted at the free end of the support leg or the support arm, and the control cam is formed integrally in the cam plate.

[0021] In the guide position at the inflection point in the control cam, the cam plate on the support leg and the tab on the contact segment overlap each other, thus forming a further side wall of the contact cage in addition to the U-shaped leg of the contact segment, which advantageously additionally protects the contact point from external influences.

[0022] Preferably, the cable connection device has a U-shaped contact cage as the contact section, which has two side walls as legs of the U and a contact plate formed on the bottom of the U between them, wherein the control cam of the locking transmission mechanism is designed symmetrically outside the two side walls. This double design ensures a reliable relative movement between the contact section and the clamping piece.

[0023] It is also preferred that the clamping element is designed as a clamping cage which has two angled (oblique) and elastically embodied guides which engage in the control cam from the outside.

[0024] Finally, preferably, the contact section and / or the clamping cage, preferably both, can be formed in one piece from a metal sheet by cutting, bending and / or punching operations. This simplifies production and minimizes the number of components. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is described in detail below in conjunction with the embodiments shown in the accompanying drawings.

[0026] Figure 1 A front view of the contact carrier is shown in a "pushed-in position"; Figure 2 Shows Figure 1The contact carrier is shown rotated 180°, including a cam plate adapted to the clamping member and a guide member fixed at the inflection point of the control cam; Figure 3 Shows Figure 2 The contact carrier shown, wherein the guide is released at the inflection point; Figure 4 Shows Figure 3 A view of the contact carrier shown with the guide fixed at the starting point; Figure 5 Shows Figure 4 The contact carrier is shown rotated 180° to a front view of the "operating position"; Figure 6 Shows Figure 4 A rear view of the contact carrier shown, wherein the guide is released from a fixed position at the starting point during the movement of the guide to the inflection point; Figure 7 Shows Figure 6 The view shown in which the guide moves in the control cam shortly before reaching the inflection point; Figure 8 Another embodiment of a contact segment of a contact carrier is shown; Fig. 9 Shows Figure 8 Another view of the contact segment shown; Fig.10 Shown with Figure 8 and Fig. 9 A view of a clamping cage that complementarily completes the locking transmission mechanism; Fig.11 Shows Fig.10 Another view of the clamping cage is shown.

[0027] These drawings contain partially simplified schematic diagrams. The same reference numerals represent the same parts of the same structure. Different views of the same part may be scaled to different proportions. DETAILED DESCRIPTION

[0028] first, Figure 1 The contact carrier 1 according to the present invention is shown to have a contact segment 2 of a busbar and a clamping member 3 designed as a leg spring. The contact segment 2 is connected to the remaining busbars not shown in the figure in a conventional manner. In the embodiment of the present invention, the contact segment 2 is designed as a U-shaped contact cage, which has a U-shaped leg as a side wall 4 and a contact plate 5, which connects the side wall 4 and forms the U-shaped bottom of the U-shaped contact segment 2.

[0029] The leg spring used as the clamping member 3 is composed of a supporting leg 6 and a clamping leg 7 elastically supported on the supporting leg 6. It can be seen that the free end of the clamping leg 7 abuts against the lower side of the contact plate 5 of the contact section 2. If a dimensionally stable conductor (not shown in the figure) provided with a wire end sleeve is inserted into the contact section 2 along the conductor insertion direction 8, the clamping leg 7 springs down toward the supporting leg 6, releasing the clamping space for the conductor defined by the side wall 4, the contact plate 5 and the clamping leg 7. Then, the clamping leg 7 springs back toward the contact plate 5, so that the conductor is clamped and inserted into the clamping space. In addition, a flange (Sicke) 9 is formed in the clamping leg 7, the function of which is to further increase the pressure of the clamping leg 7 on the conductor inserted into the clamping space, thereby helping to improve the contact connection in the cable connection device according to the present invention.

[0030] Figure 2 Shows Figure 1 The rear view of the contact carrier 1 is shown, from which the side wall 4 and the contact plate 5 of the contact section 2 can be seen. The figure also shows the end face of the free end of the support leg 6 of the leg spring used as the clamping member 3. The support leg 6 is adapted to the cam plate 10. The cam plate 10 is at a right angle to the support leg 6. A control cam 11 is formed in the cam plate 10. The geometric shape of the control cam 11 is similar to the lowercase letter "d". The control cam 11 is composed of a d-shaped vertical strip 12 and a C-shaped arc 13, and the C-shaped arc 13 complements the d-shaped vertical strip 12 to form a d-shaped profile.

[0031] It can also be seen that the protruding piece 14 is bent at a right angle from the contact plate 5 of the contact section 2. A bearing hole 15 is passed through the protruding piece 14. The bearing end of the guide member 16 is inserted into the bearing hole 15. In the embodiment of the present invention, the cross-sectional shape of the guide member 16 is cylindrical. The free end of the guide member 16 is away from its bearing end passing through the bearing hole 15, and then engages in the control cam 11.

[0032] from Figure 3 It can be seen that the receiving contour 17 is complementary to the cross-sectional shape of the guide 16. The receiving contour 17 is substantially semicircular and thus adapts to the cylindrical outer contour of the guide 16. Figure 2 As shown, the free end of the guide 16 is placed in the receiving contour 17, that is, the free end of the guide 16 is snapped into the receiving contour 17. The guide 16 is connected to the contact section 2 via the protrusion 14, so that the guide 16 holds the contact section 2 Figure 1 and Figure 2 The contact carrier 1 is shown in the "pushed-in position". The contact segment 2 can be held in position against the pressure of a spring element (not shown in the figure).

[0033] If the guide element 16 is moved from its snap-in position in the receiving contour 17 (eg Figure 3As shown in FIG. 1 ), the free end of the guide member 16 releases the contact segment 2 and moves in the direction of the C-shaped arc 13 of the control cam 11, so that the free end of the guide member 16 releases the contact segment 2 at the same time, so that it can move upward along the movement direction 18 of the clamping member 3 or the cam plate 10, as shown in FIG. Figure 4 shown.

[0034] contrast Figure 3 and Figure 4 It can be seen that the free end of the guide member 16 is Figure 3 Starting from the position in the middle, it first moves upward along the movement direction 18 through the C-shaped bottom of the control cam 11, then enters the D-shaped vertical belt of the control cam 11, and moves to the upper end. The upper end of the control cam 11 is also hollowed out into a semicircle, thereby forming a receiving contour for the free end of the guide 16. Figure 4 In its functional position shown, ie the “operating position” at the end point of the control cam 11 , the guide 16 snaps back into place.

[0035] from Figure 4 The end faces of the free ends of the clamping legs 7 of the clamping part 3 and the end faces of the support legs 6 can be seen in FIG. Figure 4 shows a rear view of the contact carrier 1, Figure 5 Relative to Figure 4 Rotated by 180°, the contact carrier 1 is in the same functional position. Figure 5 The perspective view (front view) corresponds to Figure 1 .contrast Figure 1 and Figure 5 The two functional positions of the contact carrier 1 shown can be found. Figure 5 The central contact section 2 is displaced significantly upward relative to the clamping element 3 in the direction of movement 18 , so that a significant longitudinal spacing 19 is left between the free ends of the clamping legs 7 of the clamping element 3 and the bottom of the contact plate 5 . Figure 5 The so-called "operating position" of the contact carrier 1 is shown, whereas as described above Figure 1 The so-called "pushed-in position" of the contact carrier 1 is shown. Figure 5 In the illustrated operating position, the conductor fixed in the contact carrier 1 can be pulled out of the contact carrier again and removed. The operating position is therefore used for disassembling previously assembled conductors. In addition, the operating position is also used for assembling conductors whose conductor ends are unstable, in particular conductors whose conductor ends do not have a wire end sleeve.

[0036] In order to Figure 4 and Figure 5 To return the illustrated operating position to the "pushed-in position", it is only necessary to press the contact segment 2 downwards in the direction of movement 18 towards the cam plate 10. The guide 16 then moves downwards in the D-shaped vertical strip 12 in the direction of movement 18 in order to finally reach its locked position in the receiving contour 17 at the inflection point of the control cam 11 (see FIG. Figure 2 as shown).

[0037] In particular, considering Figure 1 and Figure 2 as well as Figure 4 and Figure 5 It is shown that, with the contact carrier 1 according to the present invention, it is possible to very easily switch back and forth between the “pushed-in position” and the “operated position”, and at least in terms of operation, it can be similar to the pressing mechanism of a ballpoint pen.

[0038] Figure 8 and Fig. 9 An alternative embodiment is shown, in which a double control cam 11 is formed on the side wall 4 of the contact segment 2. In this embodiment, the contact segment 2 has the functions of maintaining contact and transmitting current.

[0039] Compared with the first embodiment, the control cam 11 in this embodiment is less curved. Fig.10 and Fig.11 The guide is guided to the locking position in the receiving contour 17, i.e. the so-called contact carrier "pushed-in position", via the first linear operating strip 12' of the control cam 11. When re-operated, the guide returns to the above-mentioned operating position via the second linear operating strip 13' of the control cam 11.

[0040] In this embodiment, the handling strip 13' is cut out of the material, so that no material is present in this area. The handling strip 12' is punched into the material, so that its material thickness is less than the surrounding area. Thus, a guide section 20 is formed between the two handling strips 12' and 13', which has the full material thickness of the remaining side wall 4. As an alternative to punching, the punching forming the chamfers and radii around the locking position in the receiving profile 17 can also be formed by bending in the opposite side 4 direction.

[0041] Fig.10 and Fig.11 The complementary clamping cage 21 is shown. The clamping cage 21 comprises two guides 16, which are designed as arms pointing inwards and upwards. The guides 16 themselves act as springs to implement the locking transmission mechanism, which is also called a push-latch mechanism in this embodiment. The free ends of the guides 16 engage in the slide grooves of the control cam 11, as shown in FIG. Figure 8 and Fig. 9 shown.

[0042] The clamping holder 21 is preferably provided with a leg spring (not shown in the figure) as a clamping member, so that the clamping holder 21 itself can also be called a clamping member. In particular, the supporting legs of the leg spring can be accommodated between the clamping arms 22 of the clamping holder 21. Therefore, in this embodiment, relative movement, in particular translational movement, between the clamping member and the contact section 2 can also be achieved by operating the push-lock mechanism.

[0043] Both the contact segment 2 and the clamping cage 21 are preferably produced from sheet metal using only cutting, bending and / or punching operations, so that production requires only a few working steps and can be easily automated.

[0044] The profiles of the control cams 11 of different embodiments can be interchanged, for example, Figure 8 The control cam 11 shown is used instead of Figure 2 The circular control cam 11 is shown and vice versa.

[0045] in addition, Figures 8 to 11 The exemplary embodiment shown is provided only with a control cam 11 and a complementary guide element 16 , for example by molding a corresponding control cam 11 on only one of the side faces 4 .

[0046] Reference numerals list 1Contact carrier 2 Contact segment 3 Clamping parts 4 Sidewall 5 Contact Plate 6 Support legs 7. Tighten your legs 8Conductor insertion direction 9 Flange 10 Cam plate 11 Control cam 12d-shaped vertical band 12' control belt 13C-shaped arc 13' control belt 14 convex pieces 15 Support holes 16 guides 17 Accommodating outline 18 directions of movement 19 vertical interval 20 Guide segment 21 Clamping cage 22 Clamping arm

Claims

1. A cable connection device comprising at least one contact carrier (1), the contact carrier (1) comprising a busbar with a contact section (2) and a clamping element (3) with a clamping arm acting on the contact section (2), It is characterized in that The contact section (2) of the busbar is movable on the contact carrier (1) relative to the clamping element (3, 21).

2. The cable connection device according to claim 1, It is characterized in that Translational movement between the contact section (2) and the clamping member (3).

3. The cable connection device according to claim 1 or 2, It is characterized in that A locking transmission mechanism connects the contact section (2) and the clamping member (3).

4. The cable connection device according to claim 3, It is characterized in that In the first operated functional position of the locking transmission mechanism, there is free space between the contact section (2) of the busbar and the clamping arm of the clamping member (3), and in the second non-operated functional position of the locking transmission mechanism, the clamping arm of the clamping member (3) abuts against the contact section (2) of the busbar.

5. The cable connection device according to claim 3 or 4, It is characterized in that The locking transmission is designed as a cam transmission, so that a guide member (16) articulated on the contact section (2) or the clamping member (3) engages with its free end in a control cam (11) arranged on the clamping member (3) or the contact section (2) and is movably guided in the control cam (11).

6. The cable connection device according to claim 5, It is characterized in that The control cam (11) has substantially the shape of a lowercase letter D, having a d-shaped vertical strip (12) guiding the guide (16) from a starting point in the control cam (11) at the upper end of the d-shaped strip (12) to an inflection point of the control cam (11) at the lower end of the d-shaped strip (12), and having a c-shaped arc (13) arranged on the left side in the lower region of the d-shaped strip (2) guiding the guide (16) back to the starting point in the control cam (11); or The control cam (11) has essentially an acute-angled triangle profile having two straight-line guide strips (12', 13') and a locking position formed therebetween as the third side of the triangle, wherein one guide strip (12', 13') guides the guide element (16) from a starting point at the intersection of the two guide strips (12', 13') in the control cam (11) to a locking position between the guide strips (12', 13'), and the other guide strip (12', 13') guides the guide element (16) back to the starting point in the control cam (11).

7. The cable connection device according to claim 6, It is characterized in that A receiving contour (17) complementary to the geometry of the guide (16) at the starting point of the guide (16) in the control cam (11), and a further receiving contour (17) complementary to the geometry of the guide (16) at the inflection point of the guide (16) in the control cam (11), for releasably fixing the guide (16) in a corresponding position in the control cam (11).

8. The cable connection device according to any one of claims 1 to 7, It is characterized in that The U-shaped contact cage as the contact section (2) has a protrusion (14) bent out from the bottom of the U shape and extending at right angles to the legs of the U shape, and the protrusion (14) has a bearing hole (15) for accommodating the bearing end of the guide (16) as a hinge point of the guide (16) on the contact section (2).

9. The cable connection device according to any one of claims 1 to 8, It is characterized in that The leg spring as the clamping member (3) has a clamping leg (7) as a clamping arm and a supporting leg (6), the free end of which clamps and fixes the end of a conductor to be connected to the contact section (2), and the free end of which is adapted to a cam plate (10) having the control cam (11).

10. The cable connection device according to claim 9, It is characterized in that The cam plate (10) on the supporting leg (6) and the protrusion (14) on the contact section (12) overlap each other at a position where the guide member (16) is located at an inflection point on the control cam (11).

11. The cable connection device according to any one of claims 3 to 6, It is characterized in that The U-shaped contact cage as a contact section (2) has two side walls (4) as legs of the U and a contact plate (5) formed between them on the base of the U, wherein the control cam (11) of the locking mechanism is designed symmetrically on the outside of the two side walls (4).

12. The cable connection device according to claim 11, It is characterized in that The clamping element (3) designed as a clamping cage (21) has two angled and elastically designed guides (16) which engage from the outside in the control cam (11).

13. The cable connection device according to claim 12, It is characterized in that The contact section (2) and / or the clamping cage (21), preferably both, can be manufactured in one piece from a metal sheet by cutting, bending and / or punching operations.

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