Conductor connection terminal

Abstract

To prove an improved conductor connection terminal.SOLUTION: The present invention relates to a conductor connection terminal (1) comprising: an insulating material housing (2) having a mounting opening and a conductor insertion opening (4a and 4b); a closure member (3) insertable into the mounting opening; a contact insert having a busbar and a clamping spring, the clamping spring having a clamping leg extending towards the busbar with a spring clamping edge for clamping an electrical conductor; and a first latching connection (7) arranged between the closure member and the insulating material housing, in which the closure member and the insulating material housing can be fixed to one another by the first latching connection. Therein a second latching connection is arranged between the closure member and the contact insert, and the closure member and the contact insert can be latched to each other by the second latching connection.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention provides an insulating housing having a mounting opening and a conductor insertion opening; a closure member insertable into the mounting opening; a contact insert having a busbar and a clamping spring, the clamping spring having clamping legs extending towards the busbar with spring clamping edges for clamping the electrical conductor; - a conductor connection terminal comprising a first locking connection portion arranged between a closure member and an insulating housing, the closure member and the insulating housing being fixable to each other by the first locking connection portion.

[0002] The present invention also relates to a method for attaching such a conductor connection terminal. [Background technology]

[0003] DE 102013101830 A1 discloses a conductor connection terminal comprising an insulating housing and a contact insert with a clamping spring, which is placed on a housing part and can then be assembled and mounted in the insulating housing. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] German Patent Application Publication No. 102013101830 Summary of the Invention [Problem to be solved by the invention]

[0005] Based on this, it is an object of the present invention to provide an improved conductor connection terminal. [Means for solving the problem]

[0006] The problem is solved by means of a conductor connection terminal having the features of claim 1. Advantageous embodiments are set forth in the dependent claims. In addition, in the case of a typical conductor connection terminal, it is proposed to arrange a second locking connection portion between the closing member and the contact insert, so that the closing member and the contact insert can be locked to each other by the second locking connection portion.

[0007] By forming a second locking connection between the closure element and the contact insert, a conductor connection terminal can be provided that can be handled safely in the pre-installed state. The double locking, i.e., the closure element to the insulating housing and the closure element to the contact insert, makes it possible to provide a pre-installed unit consisting of at least the closure element and the contact insert, thereby providing a more stable conductor connection terminal. Therefore, deformation of the conductor connection terminal due to the influence of forces is eliminated or reduced.

[0008] Furthermore, even if an external force such as a tensile force or a torsional force acts on the conductor connection terminal, the closing member is securely held in the insulating housing. The clamp spring may have an abutment leg and a spring arch disposed between the abutment leg and the clamp leg.

[0009] Below are various embodiments of the first locking connection and the second locking connection. The locking connection portion of the terminal is not limited to the one shown in this embodiment. Rather, these locking connection portions may be combined or multiplied on the conductor connection terminal. For example, the conductor connection terminal of the present invention may be configured with at least one, two, or three locking connection portions of the same type.

[0010] The second locking connection can be configured as a locking arm on the closure element, which engages with the busbar of the contact insert. The locking arm is then positioned on the closure element. When the closure element and the contact insert are attached, the locking arm is guided through the contact insert, and the end of the locking arm engages with the contact insert, thereby securely locking the contact insert to the closure element. It is useful to have two locking arms on the closure element, each guided through opposing surfaces of the contact insert, and engaging the periphery of the contact insert. Preferably, the locking arms can be provided with a locking hook that engages with the rear of the locking edge of the busbar.

[0011] The insulating housing may have a blocking element that prevents the locking element from being disengaged. It is also conceivable that the insulating housing itself is the blocking element. When the contact insert and the pre-attached closure element are guided into the insulating housing, the insulating housing prevents the second locking connection from being disengaged.

[0012] For example, the aforementioned configuration of the second locking connection portion as a locking arm can no longer be displaced because it is blocked by the presence of the insulating material housing and / or the blocking member. In this way, a functionally reliable and safe to handle conductor connection terminal is provided, and the second locking connection portion cannot be released without removing the closing member from the insulating material housing.

[0013] The first locking connection can be configured as a locking hook on the insulating housing, which can be engaged with an opening in the closure member. Here, the locking hook can be disposed on the insulating housing and guided into the opening in the closure member, where the locking hook locks the insulating housing to the closure member.

[0014] It is conceivable that there is a certain distance between the closure member and the insulating housing so that the closure member can flex when the insulating housing is attached to the closure member.

[0015] The first locking connection can be configured as a tab on the closure member, which engages with a web on the insulator housing. The tab can be configured as a flat piece of material with a mounting hole on the closure member. When the closure member is attached to the insulator housing, the tab is guided through the web on the insulator housing and reaches the mounting hole, where the closure member is locked to the insulator housing.

[0016] The first locking connection can be configured as a protrusion on the closure member, which engages with a recess in the insulating housing. In particular, the protrusion can be T-shaped. In this case, the protrusion is arranged on the closure member, and when the closure member is attached to the insulating housing, the closure member is guided into the recess in the insulating housing. The possible T-shaped configuration of the protrusion can prevent the first locking connection from loosening. Therefore, the connection can be released without destroying the conductor connection terminal.

[0017] Such a configuration of the locking connection can occur in every conceivable combination. For example, the first locking connection can be configured as three protrusions on the closure member, one of which can be configured in a T-shape. However, if a tab is disposed on the closure member and the insulating material is It is also conceivable that two locking hooks are arranged on the housing, each of which engages with an opening in the closure member.Various combinations of locking connections can provide a conductor connection terminal that can be handled safely.

[0018] An inspection opening may be disposed in the closure member, the inspection opening being aligned laterally with the clamped electrical conductor and extending from a surface of the closure member through the closure member to the contact insert, through which the contact insert can be contacted with an external measuring device.

[0019] The conductor connection terminal may have at least one, preferably two, operating levers arranged to displace the clamping legs, thereby allowing easy opening and closing of the clamping position without the need for further auxiliary means.

[0020] The conductor connection terminal may have a guide contour for guiding the first and / or second locking connection portions. In particular, the guide contour may be a sloped surface on the insulating housing and / or the closing member. Such a guide contour facilitates installation of the conductor connection terminal. For example, the opening of the closing member may have a sloped surface, and the locking hook of the insulating housing may be guided into the locking position via the sloped surface.

[0021] The insulating material housing and the closure element can be crimped together in the region of the first locking connection. Mechanically crimping the closure element to the insulating material housing results in plastic deformation of the closure element and / or the insulating material housing, but prevents the components from coming apart and does not destroy them by expending a corresponding amount of force.

[0022] The first and / or second locking connection portions may be arranged in a central region of the conductor connection terminal. Here, the conductor connection terminal may have a symmetrical structure in which the first and / or second locking connection portions are arranged in a symmetry plane of the conductor connection terminal. In particular, the first and / or second locking connection portions may be arranged in a symmetry plane of the conductor connection terminal, the symmetry plane extending perpendicular to the conductor insertion direction.

[0023] In this way, a perfectly symmetrical conductor connection terminal can be provided, and the manufacture of such a perfectly symmetrical conductor connection terminal is simplified. The conductor connection terminal may have two conductor insertion openings and two clamping springs, the conductor insertion openings being arranged at opposite, opposing ends of the conductor connection terminal. In particular, the first and / or second locking connection may be arranged between the clamping springs of the contact insert. Alternatively or additionally, the first locking connection, in particular between the closing element and the insulating housing, may be arranged at opposite, opposing end regions in the longitudinal direction of the conductor connection terminal and thus outside the plane of symmetry of the conductor connection terminal. The longitudinal direction here refers to the direction in which the conductors are inserted into the conductor insertion openings.

[0024] In this way, a conductor terminal can be provided with two opposing clamping points for two conductors, which conductor terminal has a high stability against deformation of the insulating housing and / or the closure member, which means in particular that the insulating housing and / or the closure member do not deform plastically and / or elastically under the action of forces, for example under the tension of inserted conductors, and the components are reliably held in their position relative to one another.

[0025] One of the above conductor connection terminals can be attached by a method including the following steps: - attaching a clamp spring to the busbar; - locking the contact insert to the closure member; - inserting a closure member into the mounting opening of the insulating material housing; - securing the insulating material housing to the closure member; - crimping the closure member against the insulation housing in the region of the first locking connection.

[0026] This mounting of the conductor connection terminal according to the present invention provides a conductor connection terminal that cannot be removed by the action of external forces. The double locking provides a very stable connection that cannot be broken by subsequent crimping. Therefore, the user can no longer remove the conductor connection terminal, which would otherwise impair its functionality.

[0027] The indefinite article "ein" should be understood as an indefinite article, not as a numeral. Therefore, the conductor connection terminal according to the present invention may have a plurality of adjacent contact inserts. For example, two, three, four, or five contact inserts may be arranged adjacently in the insulating housing, each having two clamping springs for two conductors to be clamped.

[0028] The invention will now be described in more detail with reference to an embodiment, by way of example only, using the accompanying drawings, in which: FIG. [Brief explanation of the drawings]

[0029] [Figure 1] 1 is a perspective view of a conductor connection terminal according to a first embodiment; [Figure 2] The closure element with two operating levers of the conductor connection terminal in a perspective view according to FIG. [Figure 3] 2 is a cross-sectional view of the conductor connection terminal according to FIG. 1; [Figure 4a] conductor connection terminal according to FIG. 1 in a side cross-sectional view. [Figure 4b] 4a , an enlarged cross-sectional view of the conductor connection terminal; [Figure 5] FIG. 10 is a perspective view of a conductor connection terminal according to a second embodiment. [Figure 6] FIG. 10 is a perspective view of a conductor connection terminal according to a third embodiment. [Figure 7] Conductor connection terminal according to Figure 6 in top view. [Figure 8] Contact inserts for use in conductor connection terminals. [Figure 9]5 is a perspective view of the conductor connection terminal according to the first embodiment of the present invention shown in FIGS. 1 to 4, in which the terminal is removed. DETAILED DESCRIPTION OF THE INVENTION

[0030] 1 is a perspective view of a conductor connection terminal 1 according to the first embodiment. The base of the conductor connection terminal 1 is formed of an insulating housing 2 and a closing member 3, and the closing member 3 is inserted into an attachment opening of the insulating housing 2. The conductor connection terminal 1 has two conductor insertion openings 4a and 4b for accommodating conductors.

[0031] Further, it can be seen that there are two operating levers 5a, 5b, which are arranged on the closure member 3. An inspection opening 6 is arranged on the closure member 3, which inspection opening 6 extends vertically from the surface of the closure member 3 into the interior of the insulating material housing 2. Such inspection opening allows access to the conductive members within the insulating material housing 2 using external measuring equipment.

[0032] It can be seen that the closure member 3 is fixedly connected to the insulating housing 2 via a first locking connection 7. Here, the first locking connection 7 is configured as a protrusion 8 on the closure member 3, which engages in a recess 9 on the insulating housing 2, thereby fixing the closure member 3 to the insulating housing 2.

[0033] It can be seen that the conductor connection terminal 1 is configured perfectly symmetrically with respect to a plane of symmetry SE, and that the first locking connection part 7 is arranged in the plane of symmetry SE, which here extends perpendicular to the conductor insertion direction L.

[0034] 2 shows the closure element 3 of the conductor connection terminal 1 in a perspective view according to FIG. 1, with the operating levers 5a, 5b arranged thereon. It is clear that a second locking connection 10 is arranged on the closure element 3, which is configured as a locking arm 11. The second locking connection 10 is provided for locking the closure element 3 to a contact insert (in other words, an insert element) 12, whereby the second locking connection 10 is arranged in the same plane of symmetry SE as the first locking connection 7. The double locking, i.e., the locking of the closure element 3 to the insulating material housing 2 and the locking of the closure element 3 to the contact insert 12, makes it possible to provide a conductor connection terminal 1 that can be handled safely.

[0035] Furthermore, it can be seen that two projections 8 are arranged on opposite sides of the closure member 3 and are provided for engaging recesses 9 in the insulating material housing 2 . 3 shows the conductor connection terminal 1 according to FIG. 1 in a cross-sectional view, the cross-section of which lies in the plane of symmetry SE. It can be seen that the busbar 13 of the contact insert 12 is arranged inside the insulating material housing 2, and the second locking connection part 10 configured as a locking arm 11 is guided laterally along the busbar 13 and engages around it. The first locking connection part 7 configured as a protrusion 8 engages in a recess 9 in the insulating material housing 2. This achieves a double locking of the closure element 3 relative to the contact insert 12 and the insulating material housing 2.

[0036] It becomes clear that the insulating material housing 2 is configured as a blocking member 14, and a part of the insulating material housing 2, preferably a side wall, prevents the second locking connection 10 from being disengaged by preventing the displacement of the locking arm 11. In other words, the locking arm 11 of the second locking connection 10 can only be disengaged from the busbar 13 if the first locking connection 7 has previously been disengaged from the insulating material housing 2. The locking arm 11 of the second locking connection 10 is prevented by the presence of the insulating material housing 2.

[0037] The closure element 3 of the conductor connection terminal 1 shown in Figures 1 to 3 is not crimped to the insulating material housing 2 in the region of the first locking connection 7. However, crimping can be achieved, for example, by applying a force F to the protrusion 8 of the closure element 3. This deforms the protrusion 8 so that part of the protrusion 8 flows into the free area (i.e., the void) 9a of the recess 9, making it no longer possible to remove the first locking connection 7. The deformation of the protrusion 8 then means that the protrusion 8 of the first locking connection 7 can no longer be pulled out of the recess 9. Once the closure element 3 has been crimped to the insulating material housing 2, it is no longer possible to remove the conductor connection terminal 1 without destroying it.

[0038] Figure 4a shows in a side cross-sectional view the conductor connection terminal according to Figure 1. The conductor connection terminal has an insulating material housing 2 and a closing element 3, inside which a contact insert 12 is arranged.

[0039] The contact insert 12 comprises a busbar 13 and two clamping springs 17a, 17b, which are arranged at opposite ends of the busbar 13. The clamping springs 17a, 17b each have abutment legs 18a, 18b, which merge into spring arches 19a, 19b and extend into clamping legs 20a, 20b. The clamping legs 20a, 20b each have spring clamping edges 21a, 21b, which together with the busbar 13 form a clamping position for the conductor to be clamped.

[0040] The conductor connection terminal 1 has two operating levers 5a, 5b, each of which interacts with a clamp spring 17a, 17b, and is arranged to displace the clamp legs 20a, 20b.

[0041] It can be seen that the additional first locking connection 7a between the closure element 3 and the insulating housing 2 is configured as a locking hook 22 of the insulating housing 2. Here, the locking hooks 22 are arranged at opposite ends of the insulating housing 2. The locking hooks 22 engage in corresponding openings 23 in the closure element 3 and thus lock the insulating housing 2 and the closure element 3 together. This additional locking connection 7a is thus made in the opposite end region of the conductor connection terminal 1. This additional locking connection 7a is optional and can be omitted if the locking requirements of the closure element 3 relative to the insulating housing 2 are low. The additional first locking connection 7a can be reliably secured by a protrusion or by crimping the insulating housing 2.

[0042] 4b is an enlarged cross-sectional view of the conductor connection terminal according to FIG. 4a. Here, the area of ​​the first locking connection part 7a is shown enlarged. It is clear that inclined surfaces (in other words, chamfers) 24 are arranged on the insulating material housing 2 and on the locking hooks 7a, 22. These inclined surfaces 24 serve as guide contours for guiding the locking hooks 22 of the first locking connection part 7a into the openings 23 of the closure element 3. Here, the locking hooks slide along the inclined surfaces 24 into their locking position, thereby securing the insulating material housing 2 to the closure element 3.

[0043] Fig. 5 is a perspective view of a conductor connection terminal 1 according to a second embodiment. The conductor connection terminal 1 in Fig. 5 has the same structure as the conductor connection terminal 1 in Fig. 1. The conductor connection terminal 1 in Fig. 5 differs from the conductor connection terminal 1 in Fig. 1 only in the first locking connection portion 7.

[0044] The first locking connection portion 7 is configured as a tab 15, which is arranged on the closure member 3 of the conductor connection terminal 1. The tab 15 is configured as a flat piece of material having a mounting hole 16. A web 17 is arranged on the insulating material housing 2, and the tab 15 engages with the web 17, so that the web 17 is locked in the mounting hole 16 and fixes the closure member 3 to the insulating material housing 2.

[0045] Fig. 6 is a perspective view of a conductor connection terminal 1 according to a third embodiment. The conductor connection terminal 1 in Fig. 6 has the same configuration as the conductor connection terminal 1 in Fig. 1 and Fig. 5. The conductor connection terminal 1 in Fig. 6 differs from the conductor connection terminal 1 in Fig. 1 and Fig. 5 in the configuration of the first locking connection portion 7.

[0046] In addition to the first locking connection portion 7, the conductor connection terminal 1 of the second embodiment according to Figure 5 and the conductor connection terminal 1 of the third embodiment according to Figure 6 preferably further comprise a second locking connection portion 10 corresponding to the example of the first embodiment according to Figures 1 to 4. Even more preferably, the conductor connection terminals of the second and third embodiments additionally or alternatively have a further locking connection portion 7a corresponding to Figures 4a and 4b.

[0047] The first locking connection part 7 has three projections 8 on opposite sides of the conductor connection terminal 1, each of which engages in a recess 9 in the insulating material housing 2. It can be seen that one of the projections 8 has a T-shaped configuration. The T-shaped configuration of one of the projections 8 prevents displacement of the wall of the insulating material housing 2 due to an undercut formed between the closure element 3 and the insulating material housing 2, and thus acts against loosening of the locking connection part 7.

[0048] 7 shows the conductor connection terminal 1 according to FIG. 6 in a top view. The T-shaped configuration of the protrusion 8 is evident, which makes it more difficult to remove the closure element 3 from the insulating housing 2. Here, the recess 9 of the insulating housing 2 is formed so that the insulating housing 2 is in contact with the T-shaped configuration of the protrusion 8. Since the protrusions are configured to engage the protrusions from behind, the protrusions 8 are blocked in all degrees of freedom except one.

[0049] Furthermore, if the unblocked degree of freedom is blocked by another projection 8, the closure element 3 cannot be removed from the insulating material housing 2 without destroying the conductor connection terminal 1. 8 shows a contact insert 12 for use in one of the above-described conductor connection terminals 1. The contact insert 12 has a busbar 13, at whose opposite ends clamping springs 17a, 17b are arranged. The clamping springs 17a, 17b have contact legs 18a, 18b, which merge into spring arches 19a, 19b and extend into clamping legs 20a, 20b, respectively, which extend towards the busbar 13 and have spring clamping edges 21a, 21b, which form clamping positions with the busbar 13 for the conductor to be clamped.

[0050] It can be seen that conductor receiving portions 25 for the conductors to be clamped are arranged at opposite ends of the busbars 13. It is clear that the conductor receiving portions 25 are configured to be closed in the circumferential direction.

[0051] It can further be seen that two retaining portions 27a, 27b are arranged on the upper surface 26 of the busbar 13, the retaining portions 27a, 27b being respectively arranged at opposite ends of the upper surface 26. In the retaining portions 27a, 27b, respectively one of the clamping springs 17a, 17b is held in a self-supporting manner, i.e. in a floating state without any additional mounting means.

[0052] However, it is also conceivable that the clamp springs 17a, 17b are configured as a single clamp spring with two clamp legs 20a, 20b, each of which extends above the upper surface 9 of the busbar 13.

[0053] Figure 9 shows in an exploded view the conductor connection terminal 1 in the first embodiment according to Figure 1. It can be seen that a contact insert 12 according to Figure 8 can be inserted into the insulating material housing 2 of the conductor connection terminal 1.

[0054] It is clear how the conductor connection terminal 1 according to the invention can be mounted: In a first step, the closure element 3 is locked onto the busbar 13 of the contact insert 12 by means of the locking arm 11 formed as the second locking connection 10. Here, the locking arm 11 engages under the U-shaped busbar 13.

[0055] In a second step, the operating levers 5a, 5b are attached to the closure element 3 and the contact insert 12. This second step can optionally also be carried out before the first step.

[0056] In a third step, the pre-mounting unit for the insulating housing 2, comprising the closure element 3, the contact insert 12 and the operating levers 5a, 5b, can be inserted into the insulating housing 2 via the mounting opening 28. The insulating housing 2 is then fixed to the locking part 3 by means of the first locking connection 7 and the further first locking connection 7a. The first locking connection 7 is arranged on the closure element 3, and the further first locking connection 7a is arranged on the insulating housing 2.

[0057] It is clear that the first locking connection 7 engages in a corresponding recess 9 in the insulating material housing 2. Here, the closure element 3 is fixed to the insulating material housing 2. The further first locking connection 7a further supports this fixing. Here, the recess 9 is configured in a circumferentially closed state. This is especially because the first locking connection 7 can only be guided in the recess 9 with one degree of freedom. This means that...

[0058] In an optional fourth step, the closure element 3 can be crimped to the insulation housing 2 in the region of the first locking connection 7 and / or the further first locking connection 7a. [Explanation of symbols]

[0059] 1 Conductor connection terminal 2 Insulation housing 3 Locking section 4a, 4b Conductor insertion opening 5a, 5b Operating lever 6 Inspection opening 7 First locking connection 7a Further first locking connection 8 Protrusion 9 Recess 9a Recess free area 10 Second locking connection 11 Locking arm 12 Contact Inserts 13 busbar 14 Blocking member 15 tabs 16 mounting holes 17a, 17b Clamp spring 18a, 18b Contact leg 19a, 19b Spring arch 20a, 20b Clamp legs 21a, 21b Spring clamp edge 22 Locking hook 23 Opening 24 Slope 25 Conductor housing 26 Top side 27a, 27b Holding part 28 Mounting opening F force application L Conductor insertion direction SE symmetry plane

Claims

1. an insulating material housing (2) having a mounting opening (28) and conductor insertion openings (4a, 4b); a closure member (3) insertable into said mounting opening; a contact insert (12) having a busbar (13) and clamping springs (17a, 17b), the clamping springs (17a, 17b) having clamping legs (20a, 20b) extending towards the busbar (13) and provided with spring clamping edges (21a, 21b) for clamping an electrical conductor; a first locking connection part (7) arranged between the closing element (3) and the insulating material housing (2), the closing element (3) and the insulating material housing (2) being fixable to one another by means of the first locking connection part (7), a second locking connection (10) is arranged between the closure member (3) and the contact insert (12), and the closure member (3) and the contact insert (12) can be locked to each other by the second locking connection (10); A conductor connection terminal (1), characterized in that a side wall of the insulating material housing (2) forms a blocking member (14), and the blocking member (14) prevents the second locking connection portion (10) from coming off.

2. 2. The conductor connection terminal (1) according to claim 1, characterized in that the clamping springs (17a, 17b) have abutment legs (18a, 18b) and spring arches (19a, 19b) arranged between the abutment legs (18a, 18b) and the clamping legs (20a, 20b).

3. 3. The conductor connection terminal (1) according to claim 1 or 2, characterized in that the second locking connection portion (10) is configured as a locking arm (11) of the closing member (3), the locking arm (11) engaging with the busbar (13) of the contact insert (12).

4. The conductor connection terminal (1) according to any one of claims 1 to 3, characterized in that the first locking connection portion (7a) is configured as a locking hook (22) of the insulating material housing (2), and the locking hook (22) engages in an opening (23) of the closing member (3).

5. 5. The conductor connection terminal (1) according to claim 1, wherein the first locking connection portion (7) is configured as a tab (15) of the closure member (3), the tab (15) engaging with a web of the insulating material housing (2).

6. 5. The conductor connection terminal (1) according to claim 1, wherein the first locking connection portion (7) is configured as a protrusion (8) of the closing member (3), the protrusion (8) engaging in a recess (9) of the insulating material housing (2).

7. The conductor connection terminal (1) according to claim 6, characterized in that the protrusion (8) is configured in a T-shape.

8. Conductor connection terminal (1) according to any one of claims 1 to 7, characterized in that an inspection opening (6) is arranged in the closure element (3).

9. The conductor connection terminal (1) according to any one of claims 1 to 8, characterized in that the conductor connection terminal (1) has operating levers (5a, 5b), which are arranged to displace the clamp legs (20a, 20b).

10. The conductor connection terminal (1) according to any one of claims 1 to 9, characterized in that the conductor connection terminal (1) has a guiding contour for guiding the first locking connection portion (7) and / or the second locking connection portion (10).

11. Conductor connection terminal (1) according to claim 10, characterized in that the guiding contour is a bevelled surface (24) of the insulating material housing (2) and / or of the closing element (3).

12. The conductor connection terminal (1) according to any one of claims 1 to 11, characterized in that the insulating material housing (1) and the closing element (3) are crimped together in the area of ​​the first locking connection (7).

13. A conductor connection terminal (1) according to any one of claims 1 to 12, characterized in that the first locking connection portion (7) and / or the second locking connection portion (10) are arranged in a central region of the conductor connection terminal (1).

14. The conductor connection terminal (1) according to claim 13, characterized in that the conductor connection terminal (1) has a symmetrical structure in which the first locking connection portion (7) and / or the second locking connection portion (10) are arranged in a plane of symmetry (SE) of the conductor connection terminal (1).

15. 15. The conductor connection terminal (1) according to claim 14, characterized in that the first locking connection portion (7) and / or the second locking connection portion (10) are arranged in the plane of symmetry (SE) of the conductor connection terminal (1), the plane of symmetry (SE) extending perpendicular to the conductor insertion direction (L).

16. 16. The conductor connection terminal (1) according to claim 1, characterized in that the conductor connection terminal (1) has two conductor insertion openings (4a, 4b) and two clamp springs (17a, 17b), the conductor insertion openings (4a, 4b) being arranged at opposite ends of the conductor connection terminal (1).

17. 17. The conductor connection terminal (1) according to claim 16, characterized in that the first locking connection part (7) and / or the second locking connection part (10) are arranged between the two clamping springs (17a, 17b) of the contact insert (12).

18. A method for mounting a conductor connection terminal (1) according to any one of claims 1 to 17, comprising the following steps: - attaching said clamping springs (17a, 17b) to said busbars (13); - locking said contact insert (12) to said closure member (3); - inserting said closure element (3) into said mounting opening (28) of said insulating material housing (2); - fixing said insulating material housing (2) to said closure member (3); - crimping said closure element (3) to said insulating material housing (2) in the region of said first locking connection (7); A method having the following.

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