Conductor terminal and electrical connector

Abstract

A conductor connection terminal (11) with a housing (2) and with a plurality of spring-loaded terminal connections (6), each having at least one clamping spring (4) and a busbar (3) associated with the clamping spring (4), which, together with the clamping spring (4), form a clamping point for clamping an electrical conductor. The spring-loaded terminal connections (6) are arranged in a ring shape in the housing (2), each spring-loaded terminal connection (6) being associated with a conductor insertion opening for inserting an electrical conductor to be clamped to the spring-loaded terminal connection (6). The conductor connection terminal (11) has, as a manual actuating element for opening several or all of the clamping points, a rotary actuating element (5) mounted so as to be rotatable about a rotational axis (D), which is designed to deflect several or all of the clamping springs (4) upon rotation and thereby open the associated clamping points. The rotary actuating element (5) is fixed in the direction of its rotational axis (D).wherein the rotary actuating element (5) has a central through-opening (57), characterized in that, in a plan view of the rotary actuating element (5) in the direction of its axis of rotation (D), the clamping springs (4), busbars (3) and conductor insertion openings of the spring-loaded terminal connections (6) are arranged within the central through-opening (57).

Description

[0001] The invention relates to a conductor connection terminal with a housing and with several spring-loaded clamping connections, each having at least one clamping spring and a busbar associated with the clamping spring, which together with the clamping spring form a clamping point for clamping an electrical conductor, wherein the spring-loaded clamping connections are arranged in a ring shape in the housing, wherein each spring-loaded clamping connection is associated with a conductor insertion opening for inserting an electrical conductor to be clamped to the spring-loaded clamping connection, wherein the conductor connection terminal has, as a manual actuating element for opening several or all of the clamping points, a rotary actuating element which is mounted so as to be rotatable about a rotation axis and which is designed to deflect several or all of the clamping springs when rotated and thereby open the associated clamping points, wherein the rotary actuating element in the direction of its rotation axis, iein the axial direction, wherein the rotary actuating element has a central through-opening. The invention also relates to an electrical connector with at least one such conductor connection terminal.

[0002] A generic conductor connection terminal and a connector are known from DE 20 2021 101 354 U1.

[0003] The invention is based on the object of further improving a conductor connection terminal and a connector designed with such a rotary actuation.

[0004] This object is achieved in a conductor connection terminal of the type mentioned at the outset in that, in a plan view of the rotary actuating element in the direction of its axis of rotation, the clamping springs, busbars, and conductor entry openings of the spring-loaded clamp connections are arranged within the central through-opening. In the conductor connection terminal according to the invention, the ring-shaped arrangement of the spring-loaded clamp connections allows several spring-loaded clamp connections to be accommodated in a small installation space. The ring-shaped rotary actuating element enables simple and ergonomic actuation of several, and in particular all, clamping points with a simple rotary movement. The rotary actuating element can also be used to close the clamping points again by turning the rotary actuating element in the opposite direction or by turning it further in the same direction.Unlike an operating lever, the rotary actuating element is not designed as a pivoting component, but as a purely rotatable component. This allows for a relatively large handling surface on the rotary actuating element for manual operation, making it particularly advantageous for use in conductor terminals for small conductor cross-sections.

[0005] As mentioned, the spring-loaded terminal connections are arranged in a ring, e.g., distributed along a circular path. The spring-loaded terminal connections are preferably evenly distributed along a circular path. The central through-hole on the rotary actuating element can be an axial through-hole. Since the rotary actuating element is fixed in the axial direction, it does not change its axial position relative to the housing when rotated. In particular, the overall length of the conductor terminal is also not changed when the rotary actuating element is rotated.

[0006] Whenever the terms "axial" and "radial" are used, this refers to the rotational axis of the rotary actuator, with the rotational axis also defining the axial direction. The radial direction is a direction orthogonal to the axial direction.

[0007] According to an advantageous embodiment of the invention, at least one actuating contour and / or at least one actuating element for actuating the respective clamping spring is arranged on a radial inner surface of the rotary actuating element. With such a conductor terminal, the actuating forces upon rotation of the rotary actuating element can be effectively transmitted to the spring-loaded terminal connections. Each clamping spring is preferably assigned exactly one actuating contour and / or actuating element, and vice versa.

[0008] If the rotary actuating element has an actuating contour for actuating the respective clamping spring on a radial inner surface of the rotary actuating element, a simple design with few components can be realized because the actuating contours for the individual spring-loaded clamp connections can be structurally integrated directly on the inside of the rotary actuating element. The actuating contour can, for example, have an increasing radius from an open position of the spring-loaded clamp connection to a clamped position. In the open position, i.e. when the clamping point is open, there can be a radially inward-projecting elevation on the actuating contour. In the clamping position (clamping point closed), there can be a depression opposite the central radius. Alternatively, the plane or surface of the inner wall of the rotary actuating element can also be used.

[0009] An open clamping point (open position) is characterized by the fact that the clamping leg of the clamping spring is moved away from the busbar, allowing an electrical conductor to be placed at or removed from the clamping point without any effort. In the clamped position, however, an electrical conductor is clamped to the busbar by the clamping leg.

[0010] In the case that at least one actuating element for actuating the clamping springs is arranged on a radial inner surface of the rotary actuating element, this can be designed, for example, as a separate component, e.g. as a plastic component, which has a function similar to a push button in known conductor connection terminals with push button actuation.

[0011] In the case of the actuating contour, this can be designed as a spiral-shaped inner contour with at least one elevation and / or depression. An actuating contour associated with a spring-loaded terminal connection only extends over a specific circumferential angle of the rotary actuating element because several spring-loaded terminal connections are distributed around the circumference. The spiral-shaped inner contour can therefore also be considered a ramp-shaped inner contour.

[0012] According to an advantageous embodiment of the invention, it is therefore provided that the actuating contour is designed as a spiral-shaped inner contour with at least one elevation and / or depression.

[0013] According to an advantageous embodiment of the invention, the actuating element is designed as a slider and / or pusher guided in an actuating contour that runs obliquely relative to the rotational movement of the rotary actuating element, in particular a helical actuating contour. In this way, the actuating element, which can thus be designed as a sliding actuating element, is displaced in the conductor insertion direction by rotation of the rotary actuating element in an actuating contour designed, for example, as a groove or elongated hole, and thus acts on the actuating leg and / or clamping leg of the clamping spring, deflecting it.

[0014] According to an advantageous embodiment of the invention, one, several, or all clamping springs each have at least one clamping leg, a spring arc adjoining the clamping leg, and an actuating leg adjoining the spring arc, wherein the respective spring arc projects radially outward beyond the respectively associated busbar. In this embodiment, the clamping springs can advantageously be designed as cage clamp springs. Cage clamp springs enable high clamping forces with a compact design and correspondingly small space requirements. To actuate such a cage clamp spring into the open position, a compressive force can be applied to the actuating leg or at the transition between the actuating leg and the spring arc.

[0015] According to an advantageous embodiment of the invention, one, several, or all clamping springs each have at least one clamping leg, a spring arch adjoining the clamping leg, and a contact leg adjoining the spring arch, wherein the respective clamping leg is oriented radially outward in the direction of the respective associated busbar. In this case, the clamping springs can be essentially U-shaped, which also enables a particularly compact design of the conductor connection terminal. Such a U-shaped clamping spring is actuated to open the clamping point by applying force to the clamping leg. The contact leg serves to support the clamping spring against the force applied by the clamping leg.

[0016] According to an advantageous embodiment of the invention, the actuating contour and / or the actuating elements are configured to exert an actuating force on the actuating leg or the clamping leg of the respective clamping spring upon a rotational movement of the rotary actuating element in a radially inward direction. This enables favorable and balanced force generation for the actuation of several or all clamping springs by actuating the one rotary actuating element. Advantageously, the rotary actuating element can exert forces on the actuated clamping springs that are in a force equilibrium. This reduces the load on the rotatable bearing of the rotary actuating element.

[0017] According to an advantageous embodiment of the invention, the rotary actuating element has a ring shape.

[0018] According to an advantageous embodiment of the invention, the rotational axis extends through the annular arrangement of the spring-loaded terminals. This allows the rotary actuation mechanism for actuating the clamping springs to be designed with a simple construction and thus particularly advantageous. The rotational axis can, for example, run through the center of the conductor terminal and / or coincide with the central axis, i.e., be identical to the central axis.

[0019] According to an advantageous embodiment of the invention, the rotation axis runs at least approximately parallel and / or aligned with the conductor insertion direction of some or all of the spring-loaded terminals to be actuated by the rotary actuating element. Accordingly, the electrical conductors can be conveniently and unhindered connected to the spring-loaded terminals, with the electrical conductors advantageously being able to be inserted through the central through-opening of the rotary actuating element.

[0020] According to an advantageous embodiment of the invention, the rotary actuating element is rotatably mounted on a first housing part of the conductor terminal. The rotary actuating element can therefore be rotated relative to the first housing part about the rotation axis. This allows for reliable mounting of the rotary actuating element with high mechanical stability.

[0021] According to an advantageous embodiment of the invention, the rotary actuating element is designed as a second housing part of the conductor connection terminal. This has the advantage that the conductor connection terminal can be realized with relatively few components. In addition, the rotary actuating element is easily accessible for manual actuation and can be designed with comparable dimensions to the first housing part. As a second housing part, the rotary actuating element can assume further functions of a housing of a conductor connection terminal, such as protecting internal components of the conductor connection terminal and their insulation. For example, the second housing part can be designed as a cover part of the housing of the conductor connection terminal, which at least partially covers the internal spring-loaded terminal connections.

[0022] According to an advantageous embodiment of the invention, the conductor terminal has conductor insertion openings on a conductor insertion side through which electrical conductors can be guided to the terminal points. The conductor terminal has plug-in openings on a side facing away from the conductor insertion side, which lead to electrical plug contacts arranged in the housing of the conductor terminal. In this way, the conductor terminal can advantageously be further developed into a plug-in connector.

[0023] According to an advantageous embodiment of the invention, the conductor connection terminal has a holding element for one, several or all clamping springs, which holding element is designed to hold the clamping leg of the respective clamping spring in the open position. The holding element is in particular a component independent of the rotary actuating element, to which the clamping leg can be secured if it has previously been moved into the open position, for example by the rotary actuating element. The clamping leg is then held in the open position by the holding element, even if the rotary actuating element is released or returned to its original, unactuated position. Such a holding element can advantageously provide a snap-in functionality, in which the clamping leg is held in the open position by the holding element and can be automatically released when the electrical conductor is inserted.By inserting the electrical conductor, the electrical conductor can be clamped by releasing the fixation of the clamping leg on the holding element.

[0024] All terminals can be opened simultaneously using the rotary actuator, and the clamping springs are held in an open position by the respective retaining element. The connections can then be made one after the other by inserting the electrical conductors. This eliminates the need to hold all conductors in the same position simultaneously to connect the conductors.

[0025] The retaining element can, for example, act directly on the clamping leg to hold it in the open position. For example, a first locking element can be arranged on the clamping leg and a second locking element on the retaining element, with the first and second locking elements being able to be locked together in the open position. The first locking element can be designed as a locking projection or locking hook. The second locking element can be designed as a locking edge or locking opening.

[0026] The holding element is available as a separate component, which is attached, for example, to an insulating housing of a conductor connection terminal, to the busbar or to another component.

[0027] According to an advantageous embodiment of the invention, the spring-loaded terminal connection has a release element with a release section, by means of which the clamping leg held on the holding element in the open position can be released from the holding element when an electrical conductor to be clamped exerts an actuating force on the release section. This allows automatic release of the clamping leg from the holding element by inserting the electrical conductor. The release section can be subjected to pressure by a separate tool, a component of the conductor connection terminal, such as an actuating element, or directly via the inserted electrical conductor itself, thereby causing the clamping leg to be released from the holding element. By means of the release element, the clamping leg held on the holding element in the open position can be released from the holding element by applying pressure to the release section in the conductor insertion direction of the electrical conductor to be connected.Depending on the design of the spring-loaded terminal connection, the release element can be designed as part of the clamping spring, e.g. as a release element formed integrally with the clamping spring, or as a separate component.

[0028] The object mentioned at the outset is also achieved by an electrical connector, in particular a circular connector, with at least one conductor connection terminal of the type explained above. The advantages explained above can also be realized in this way.

[0029] For the purposes of the present invention, the indefinite term "a" is not to be understood as a numerical term. Therefore, if, for example, a component is mentioned, this is to be interpreted as "at least one component." Angles expressed in degrees refer to a circle of 360 degrees (360°).

[0030] The invention is explained in more detail below using exemplary embodiments and drawings.

[0031] It shows Fig. 1 an electrical connector in perspective view, Fig. 2 shows an electrical connector in a further embodiment with a mating connector in a perspective view, Fig. 3 a rotary actuating element in a first embodiment, Fig. 4 a spring clamp connection in a first embodiment, Fig. 5 the arrangement of several spring clamp connections according to Fig. 4 in a rotary actuator according to Fig. 3 with open terminals, Fig. 6 the order pursuant to Fig. 5 with closed terminals, Fig. 7 a rotary actuating element in a second embodiment, Fig. 8 a spring clamp connection in a second embodiment, Fig. 9 the arrangement of several spring clamp connections according to Fig. 8 in a rotary actuator according to Fig. 7 with open terminals, Fig. 10 the order pursuant to Fig. 9 with closed terminals, Fig. 11 a third embodiment of a rotary actuating element, Fig. 12 a third embodiment of a spring clamp connection, Fig. 13 the arrangement of several spring clamp connections according to Fig. 12 in a rotary actuator according to Fig. 11 with open terminals, Fig. 14 the order pursuant to Fig. 13 with closed terminals.

[0032] The Fig. 1 shows a circular connector 1 having a plug-in section 10 and a conductor terminal 11. The circular connector 1 can be plugged together at a plug-in side S with a mating connector assigned as a counterpart, thus establishing an electrical plug-in connection. At the end facing away from the plug-in side S, there is a conductor terminal 11 having a plurality of spring-loaded terminal connections 6 arranged in a ring. Extending around the spring-loaded terminal connections 6 is an annular, rotatably mounted rotary actuating element 5, which can be rotated about a rotation axis D relative to the housing 2 of the circular connector 1. Actuating contours 50 formed on the inside of the rotary actuating element 5 allow the spring-loaded terminal connections 6 to be moved selectively into the open position or the clamped position. The rotary actuating element 5 has a central through-opening 57.

[0033] The Fig. 2 shows a circular connector 1 and a mating connector 9 assigned as a counterpart. The circular connector 1 is constructed in a similar way to the circular connector 1 according to Fig. 1. In contrast to Fig. 1, the circular connector 1 has a rotary actuating element 5, in which, instead of the actuating contours 50, there are obliquely running elongated holes 51 in each of which a slide 52 is guided.

[0034] As can be seen, the mating connector 9 can be equipped with a similarly designed conductor connection terminal 11, e.g. also with a rotary actuating element 5 which has obliquely extending slot-like actuating contours 51 in each of which a slide 52 is guided.

[0035] Based on the Fig. 3 to 6, an embodiment of a conductor connection terminal is explained, as in the circular connector 1 according to Fig. 1 is used. The Fig. 3 shows the rotary actuating element 5 as a single component. The rotary actuating element 5 has a cylindrical outer contour. Actuating contours 50 are formed on the radial inner surface 56 of the rotary actuating element 5. An actuating contour 50 has a part formed as a recess 54 relative to the radial inner surface 56 of the rotary actuating element 5, and a part arranged at a distance therefrom, formed as an elevation 53 relative to the radial inner surface 56. Between them is a transition region 55 in which a continuous transition from the recess 54 to the elevation 53 is formed.

[0036] The Fig. 4 shows a spring-loaded terminal connection 6 in the open position, which has a busbar 3 and a clamping spring 4. The clamping spring 4 is designed as a cage tension spring. The clamping spring 4 has a contact leg 40, an arcuate section 41 adjoining the contact leg 40, and an actuating leg 44 adjoining the arcuate section 41. The actuating leg 44 transitions into a clamping leg 43 via a spring arch 42. The clamping leg 43 has a window-like through-opening 45. The busbar 3 rests against the contact leg 40 with a support section 30. A clamping tongue 31 of the busbar 3 extends from the support section 30 through the window-like opening 45. An electrical conductor can be clamped between the clamping tongue 31 and a clamping edge 46 of the clamping leg 43 formed at the edge of the window-like opening 45.

[0037] The Fig. 5 shows the rotary actuating element 5 in a lateral sectional view as well as the several spring-loaded terminal connections 6 arranged in the interior, ie within the through-opening 57, each of which is arranged according to Fig. 4 are formed. In the rotational position of the rotary actuating element 5, which in Fig. 5, all spring-loaded terminal connections 6 are moved into the open position by the elevation 53 of the actuating contour 50 assigned to a respective clamping spring 4, the actuating leg 44 or the transition from the actuating leg 44 to the spring arch 42 being subjected to a radially inwardly directed actuating force.

[0038] The Fig. 6 shows the arrangement of Fig. 5 in a different rotational position of the rotary actuating element 5, in which all spring-loaded terminal connections 6 are moved into the clamping position. It can be seen that the recess 54 of the actuating contour 50 is now effective, allowing the respective clamping spring 4 to spring back and, if an electrical conductor is placed at the clamping point, to clamp it securely.

[0039] The Fig. 7 to 10 show an embodiment of a conductor connection terminal as used in the circular connector 1 according to Fig. 2 is realized. The Fig. 7 again, similar to Fig. 3, the rotary actuating element 5 as a single component, wherein the slides 52 are additionally arranged in the respective obliquely extending actuating contours 51. As can be seen, the actuating contours 51 run obliquely relative to the rotational plane (E) of the rotary actuating element 5, so that upon rotary actuation of the rotary actuating element 5, the slides 52 guided therein are displaced in the axial direction (in the direction of the rotational axis D). A slide 52 protrudes with a pin 60 into the respective actuating contour 51. The slides 52 are held in a radially fixed position during a rotary movement of the rotary actuating element 51, e.g., via a support contour relative to a contact carrier (not shown) or the like. The slides 52 each have an actuating surface 59 facing the associated clamping spring 4.

[0040] The Fig. 8 shows a spring clamp connection 6 with a clamping spring 4 and a busbar 3, which is related to the spring clamp connection of the embodiment of the Fig. 4. In addition, a slider 52 is shown to clarify the operation of the clamping spring 4.

[0041] The Fig. 9 shows, analogous to Fig. 5, the rotary actuating element 5 in a lateral sectional view with spring clamp connections 6 arranged therein, as in Fig. 8. The spring-loaded terminal connections 6 are again actuated into the open position. This is done by a slider 52, which is displaced into the upper axial position of the actuating contour 51 shown in the illustration, so that the associated clamping spring 4 is deflected by the actuating surface 59.

[0042] The Fig. Figure 10 shows the arrangement in a different rotational position of the rotary actuating element 5, in which all spring-loaded clamping connections 6 are moved into the clamping position. It can be seen that the slide 52 is now arranged at the lower axial position of the actuating contour 51 shown in the illustration, in which the associated clamping spring 4 is not deflected by the actuating surface 59.

[0043] Based on the Fig. 11 to 14, a further embodiment of a conductor connection terminal is described in which the clamping springs are U-shaped.

[0044] The Fig. Figure 11 shows a rotary actuating element 5, which again features inclined actuating contours 51, each of which guides a slide 52. Due to the different design of the clamping springs in this embodiment, the actuating slides 52 are also shaped somewhat differently than in the second embodiment.

[0045] The Fig. 12 shows a clamping spring 4 and a busbar 3 of a spring-loaded terminal connection 6. The clamping spring 4 has a contact leg 40, a spring arc 42 and a clamping leg 43, which is connected to the contact leg 40 via the spring arc 42. The clamping spring 4 is supported by the contact leg 40 on another component (not shown) of the conductor connection terminal 11. By means of the clamping leg 43, an electrical conductor can be clamped to the busbar 3. Fig. 12, that the busbar is encompassed on both sides by the slide 52 by two projecting actuating arms 58 of the actuating slide 52. The actuating arms 58 extend to the clamping leg 43, which in the illustration of the Fig. 12 is deflected into the open position, ie moved away from the busbar 3.

[0046] The Fig. 13 shows a rotary actuating element 5 in a lateral sectional view as well as several spring clamp connections 6 arranged in the rotary actuating element 5, which are shown in FIG. Fig. 12. Here again, similar to Fig. 12, that the clamping legs 43 of the clamping springs 4 are each deflected into the open position by the actuating arms 58. The slide 52 is located here, similar to Fig. 9, in the upper axial position of the actuating contour 51.

[0047] If the rotary actuating element 5 is now rotated, the slides 52 move into the lower axial position in the respective actuating contours 51. In this state, the clamping legs 43 are no longer subjected to the actuating arms 58. Accordingly, an electrical conductor can be clamped against the busbar 3 by the respective clamping leg 43. List of reference symbols 1 circular connector 2 housings 3 busbar 4 clamping spring 5 Rotary actuator 6 spring-loaded terminal connection 9 mating connectors 10 plug-in section 11 conductor connection terminal 30 support section 31 clamping tongue 40 investment legs 41 arched section 42 spring bows 43 clamping legs 44 operating legs 45 window-like passage opening 46 clamping edge 50 Actuating contour 51 slot-like actuating contour 52 sliders 53 Survey 54 Deepening 55 Transition area 56 radial inner surface 57 central passage opening 58 Actuating arm 59 operating surface 60 cones D axis of rotation E rotation plane S plug-in side QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] DE 20 2021 101 354 U1

[0002]

Claims

[1] Conductor connection terminal (11) with a housing (2) and with a plurality of spring-loaded terminal connections (6), each having at least one clamping spring (4) and a busbar (3) associated with the clamping spring (4), which, together with the clamping spring (4), form a clamping point for clamping an electrical conductor, wherein the spring-loaded terminal connections (6) are arranged in a ring shape in the housing (2), wherein each spring-loaded terminal connection (6) is associated with a conductor insertion opening for inserting an electrical conductor to be clamped to the spring-loaded terminal connection (6), wherein the conductor connection terminal (11) has, as a manual actuating element for opening several or all of the clamping points, a rotary actuating element (5) mounted so as to be rotatable about a rotational axis (D), which is designed to deflect several or all of the clamping springs (4) upon rotation and thereby open the associated clamping points, wherein the rotary actuating element (5) is fixed in the direction of its rotational axis (D),wherein the rotary actuating element (5) has a central through-opening (57), , characterized by that in a plan view of the rotary actuating element (5) in the direction of its axis of rotation (D), the clamping springs (4), busbars (3) and conductor insertion openings of the spring-loaded terminal connections (6) are arranged within the central through-opening (57). [2] Conductor terminal according to claim 1, characterized by that at least one actuating contour (50, 51) and / or at least one actuating element for actuating the respective clamping spring (4) is arranged on a radial inner surface (56) of the rotary actuating element (5). [3] Conductor connection terminal according to claim 2, characterized by that the actuating contour (50, 51) is designed as a spiral-shaped inner contour with at least one elevation (53) and / or depression (54). [4] Conductor connection terminal according to one of claims 2 to 3, characterized bythat the actuating element is designed as a slider (52) and / or pusher guided in an actuating contour (50, 51) which runs obliquely with respect to the rotary movement of the rotary actuating element (5), in particular a helical actuating contour. [5] Conductor connection terminal according to one of the preceding claims, characterized by that one, several or all clamping springs (4) each have at least one clamping leg (43), a spring arch (42) adjoining the clamping leg (43) and an actuating leg (44) adjoining the spring arch (42), wherein the respective spring arch (42) projects radially outwards beyond the respectively associated busbar (3). [6] Conductor terminal according to one of the preceding claims, characterized bythat one, several or all clamping springs (4) each have at least one clamping leg (43), a spring arch (42) adjoining the clamping leg (43) and a contact leg (40) adjoining the spring arch (42), wherein the respective clamping leg (43) is oriented radially outwards in the direction of the respectively assigned busbar (3). [7] Conductor connection terminal according to one of the preceding claims, characterized by that the actuating contour (50, 51) and / or the actuating elements are designed to exert an actuating force on the actuating leg (44) or the clamping leg (43) of the respective clamping spring (4) upon a rotary movement of the rotary actuating element (5) in a radially inward direction. [8] Conductor terminal according to one of the preceding claims, characterized by that the rotary actuating element (5) has a ring shape. [9] Conductor terminal according to one of the preceding claims, characterized by that the axis of rotation (D) passes through the annular arrangement of the spring-loaded terminal connections (6). [10] Conductor terminal according to one of the preceding claims, characterized by that the axis of rotation (D) runs at least approximately parallel and / or aligned with the conductor insertion direction of some or all of the spring-loaded terminal connections (6) to be actuated by the rotary actuating element (5). [11] Conductor terminal according to claim 1, characterized by that the rotary actuating element (5) is rotatably mounted on a first housing part of the conductor connection terminal (11). [12] Conductor terminal according to one of the preceding claims, characterized by that the rotary actuating element (5) is designed as a second housing part of the conductor connection terminal (11). [13] Conductor terminal according to one of the preceding claims, characterized bythat the conductor connection terminal (11) has, on a conductor insertion side, the conductor insertion openings through which electrical conductors can be guided to the terminal points, wherein the conductor connection terminal (11) has, on a side facing away from the conductor insertion side, plug-in openings which lead to electrical plug-in contacts arranged in the housing (2) of the conductor connection terminal (11). [14] Conductor terminal according to one of the preceding claims, characterized by that the conductor connection terminal has a holding element (5) for one, several or all clamping springs (4) which is designed to hold the clamping leg (43) of the respective clamping spring (4) in the open position. [15] Electrical connector, in particular circular connector (1), with at least one conductor connection terminal according to one of the preceding claims.

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