conductor connection terminal

Abstract

The invention discloses a conductor connection terminal (1) with a spring-loaded terminal connection (2) having a busbar (3) and a clamping spring (4) for connecting an electrical conductor to the busbar (3) by means of the clamping spring (4), wherein the conductor connection terminal (1) has an actuating element (6) engaging an actuating section (5) of the clamping spring (4) for displacing a clamping leg (7) of the clamping spring (4) from a clamped position (K) to an open position (O). The actuating element (6) has a first push-button section (8a) with a first actuating contour (9a) and a second push-button section (8b) with a second actuating contour (9b). The actuating section (5) of the clamping spring (4) has a first active contour (10a) and a second active contour (10b), wherein the actuating element (6) is configured to - when the actuating element (6) is displaced by a first actuating path (11a), the clamping leg (7) of the clamping spring (4) is displaced by a first displacement path (12a) by the interaction of the first actuating contour (9a) with the first active contour (10a), and - when the actuating element (6) is displaced by a second actuating path (11b), the clamping leg (7) of the clamping spring (4) is displaced by a second displacement path (12b) by the interaction of the second actuating contour (9b) with the second active contour (10b).

Description

The invention relates to a conductor connection terminal with a spring force clamping connection.In conductor connection technology, conductor connection terminals with spring force clamping terminals are known. A spring force clamping connection is an electromechanical conductor connection with a clamping spring, with which an electrical conductor can be clamped to a busbar of the conductor connection terminal by means of spring force. By means of a spring force clamping connection, an electrical conductor can be connected and securely contacted simply and with little force exertion and can be released again by a corresponding actuation of the spring force clamping connection.For the actuation of the spring force clamping connection, it is known to arrange a mechanical actuating element, such as an actuating lever or an actuating presser, on the conductor connection terminal, which can displace a clamping leg of the clamping spring from a clamping position into an open position in order to facilitate the introduction of an electrical conductor into the conductor connection terminal in the region of the clamping point or to release a connected electrical conductor.In practice, it is desirable to provide as small and compact conductor connection terminals as possible in order to enable the connection of electrical conductors even in the case of limited installation space conditions. In addition, simple and comfortable handling of the conductor connection terminals is desired. In addition, the conductor connection terminal should be designed as robust and reliable as possible. The simplest possible and nevertheless effective actuation of the conductor connection terminal with little exertion of force and a compact construction represents a design challenge with a high potential for further development.The object of the invention is to provide a conductor terminal with an improved actuation mechanism which, with a compact construction, enables an effective actuation of the spring force terminal with little force exertion.The object is achieved with a conductor connection terminal according to claim 1. Advantageous embodiments can be taken from the dependent claims, the description and the drawings.A conductor connection terminal with a spring force clamping connection is proposed, which has a busbar and a clamping spring for connecting an electrical conductor to the busbar by means of the clamping spring, wherein the conductor connection terminal has an actuating element, which acts on an actuating section of the clamping spring, for displacing a clamping limb of the clamping spring from a clamping position into an open position. The actuating element has a first pusher section with a first actuating contour and a second pusher section with a second actuating contour. The actuating section of the clamping spring has a first effective contour and a second effective contour, wherein the actuating element is configured to,displacing the clamping limb of the clamping spring by a first displacement path by cooperation of the first actuation contour with the first operative contour, anddisplacing the clamping leg of the clamping spring by a second displacement path upon displacement of the actuating element by a second actuation path by interaction of the second actuation contour with the second operative contour.In other words, a conductor connection terminal with a multiple-start actuating element is proposed, which permits a stepwise displacement of the clamping leg of the clamping spring over actuating contours which successively engage with different effective contours of the actuating section of the clamping spring during an actuating operation.This makes it possible to use several actuating contours on the actuating element one after the other during an actuation of the actuating element for the actuation of the spring force clamping connection, so that the actuating element can be made compact. In the case of actuating elements with only one actuating contour, this must be designed structurally such that, in cooperation with the active contour of the actuating section of the clamping spring, it is suitable for displacing the clamping limb of the clamping spring over the entire required displacement path. With the proposed actuation mechanism, the displacement path is divided between a plurality of actuation and action contours which can interact successively over the entire actuation path of the actuation element. By using a plurality of actuating and active contours, larger displacement paths of the clamping limb can be implemented with a compact construction of the actuating element. The conductor connection terminal can be used even in limited installation space conditions because of the compact actuating mechanism. The actuating element can moreover be actuated with a uniform exertion of force over the actuating path, so that the handling of the conductor connection terminal is facilitated. As a result, a conductor terminal with an improved actuation mechanism can be provided, which enables an effective actuation of the spring force terminal with little force exertion with a compact construction.The actuating element can be a translationally displaceable actuating pusher. In this case, the first pusher section can be arranged offset with respect to one another from the second pusher section in the direction of the translatory displacement of the actuating pusher in order to divide the translatory displacement path between a plurality of actuating and effective contours.The actuating element can, however, also be a pivotably mounted actuating lever. In this case, the first pusher section can be arranged offset from the second pusher section in its direction of movement described on a respective curved path when the actuating lever is pivoted, in order to divide the displacement path between a plurality of actuating and active contours following a curved path. The path curves of the first and second pusher sections can thereby coincide or extend in a circle parallel manner with respect to one another, i.e. lie on a common wider curve path.The clamping spring can be a one-piece spring component with elastically deflectable and / or elastically deformable spring portions, which is suitable for exerting a spring force on adjacent component structures.The clamping spring can have an elastically deflectable clamping leg which is designed for clamping an electrical conductor to the busbar of the conductor connection terminal and is arranged opposite the busbar.The clamping spring can have a contact limb with which the clamping spring can be supported on surrounding component structures. The contact leg can be connected to the clamping leg via a spring bend.The clamping spring has an actuating section coupled to the clamping leg, on which actuating section the actuating element can engage in order to displace the clamping leg by a displacement path, for example to pivot about the spring bow, via elastic displacement or deformation of the actuating section. As the displacement path increases, a distance between the clamping leg and the busbar opposite the clamping leg is increased, so that an electrical conductor can be inserted or removed between the clamping leg and the busbar. The displacement path of the clamping leg can be limited to a maximum displacement path, also referred to below as a complete displacement path, for example by a clamping leg stop formed on the clamping spring. A position of the clamping leg in which there is a sufficient distance between the clamping leg and the busbar to be able to insert or lead out a conductor between the clamping leg and the busbar is referred to as an open position. A position of the clamping leg in which the clamping leg abuts the busbar or clamps a conductor against the busbar is referred to as a clamping position. The busbar can be a component formed in one piece. According to one configuration, the busbar can have a material passage with a passage collar, on the inner side of which an electrical conductor can be clamped by means of the clamping limb of the clamping spring.The actuating element can be an actuating presser for mechanically actuating the spring force clamping connection, which, upon actuation, carries out a predominantly translatory actuating movement, while an actuating lever is moved predominantly rotationally in comparison and pivoted about a pivot axis. Accordingly, the actuating pusher can be moved predominantly axially in the actuating direction along its longitudinal axis.The actuating presser can be designed, for example, as an elongate, rod-shaped or tine-shaped component. The longitudinal axis may be a component axis of the actuating pusher with the greatest extent. The translatory actuation direction and the longitudinal axis of the actuation presser can be unidirectional.The actuating pusher can have an actuating surface on an end face for, for example, manual or tool-assisted introduction of an actuating force in order to be able to move the actuating pusher in translation. Depending on the embodiment, the actuating contour provided for the respective mechanical contacting of the actuating section can be arranged on an end side facing the clamping spring, which can be arranged opposite an actuating surface, for example, or on a periphery of the actuating presser between the end sides thereof.The first pusher portion having the first actuation contour and the second pusher portion having the second actuation contour may be arranged consecutively along the longitudinal axis of the actuation pusher, wherein the first pusher portion is arranged closer to the actuation portion of the clamping spring than the second pusher portion. During a translatory movement of the actuating pusher in the direction of the actuating section of the clamping spring, the actuating pusher covers an actuating path.The actuating path covered by the actuating element during a cooperation of the first actuating contour with the first active contour of the actuating section is referred to as the first actuating path and the actuating path covered by the actuating element during a cooperation of the second actuating contour with the second active contour of the actuating section is referred to as the second actuating path.The second actuation contour can be arranged offset to the first actuation contour, for example radially and / or axially offset, wherein in particular a radial and axial offset in combination enables an advantageous spacing and defined separation between the first and second actuation contours. In other words, in the case of a radial offset, the first and second actuating contours can be arranged next to one another in the width direction of the actuating element and one after the other in the case of an axial offset in the longitudinal direction of the actuating element.The actuating element can be formed as a one-piece component, so that the first and second actuating contours are formed integrally with the actuating element. The actuating element can have a trigger stop for limiting its translatory movement in the actuating direction in order to define a maximum actuating distance of the actuating element.An interaction of an actuating contour with an active contour can be understood to mean that the actuating contour and the active contour contact one another mechanically and the actuating contour exerts a mechanical force on the active contour, which leads to a displacement of the actuating section and of the clamping limb of the clamping spring coupled thereto. The actuation contour and the active contour can have mutually facing contour surfaces which, depending on the embodiment, can also slide on one another in order to enable continuous displacement during their cooperation.According to an advantageous embodiment, the first actuation contour and the first active contour as well as the second actuation contour and the second active contour can each form different surface pairings with respect to their shape, dimension and / or alignment with respect to one another, so that it is ensured that the first actuation contour only interacts with the first active contour and the second actuation contour only interacts with the second active contour. Alternatively or additionally, it can be provided that the first pusher section has a cross-sectional shape and / or cross-sectional size deviating from the second pusher section and the actuating section has a guide contour adapted to the respective pusher section in the region of the effective contours, so that it is ensured that the first actuating contour interacts only with the first effective contour and the second actuating contour interacts only with the second effective contour.The first and second effective contours can be arranged, for example, one behind the other in a longitudinal direction of the actuating section of the clamping spring and side by side in a width direction of the actuating section. Examples of geometric assignment possibilities of actuating, active or guide contours are explained below in connection with advantageous embodiments.In principle, the number of actuating contours on the actuating element and the number of active contours on the actuating section of the clamping spring are not limited to two in each case, but rather more than two actuating contours and more than two active contours can also be provided. As a result, a complete displacement path of the clamping leg can be divided between more than two partial displacement paths and an overall actuation path of the actuating element can be divided between more than two partial actuation paths, so that the actuation can be further facilitated or larger displacement paths can be implemented. In other words, in principle any number of actuating stages can be implemented by the multiple-start actuating element.According to one embodiment, the actuating section of the clamping spring can be designed as a tension bracket. As a result, the actuating section and correspondingly the clamping leg of the clamping spring coupled to the actuating section can be displaced in a simple and reliable manner by the actuating element. A tension bracket can be a frame-like actuating section with an opening into which the actuating element dips and can exert a compressive force on the tension bracket with its actuating contour resting on an effective contour of the tension bracket, which compressive force is transmitted as a tensile force to the clamping leg coupled to the tension bracket and pulls the clamping leg into the open position. The tension bracket can protrude from the clamping leg, for example, between a free end of the clamping leg and the spring bow.According to a further development of the embodiment described above, the first and second effective contours of the tension bow can be designed as guide surfaces which project from the tension bow and are spaced apart from one another. The guide surfaces can be, for example, material tabs bent away from the tension bracket, which are bent, for example, in a direction substantially corresponding to the translation direction of an actuating pusher, so that the translationally moved actuating pusher is guided along a guide surface when an actuating path is covered.A guide surface can be shaped, dimensioned and / or oriented in such a way that it is adapted to the respective associated actuation contour. For example, the first operative contour of the tension bracket, which is designed as a guide surface, can have the same width and / or an identical inclination with respect to the longitudinal axis of the actuating element as the first actuating contour, and the second operative contour of the tension bracket, which is designed as a guide surface, can have the same width and / or an identical inclination with respect to the longitudinal axis of the actuating element as the second actuating contour.The distance between the first active contour and the second active contour can substantially correspond to the first displacement path of the clamping leg upon interaction of the first actuating contour with the first active contour, so that after traversing the first displacement path the second actuating contour comes into engagement with the second active contour and the second displacement path can be traversed by interaction of the two contours. The first effective contour can be arranged on a transverse connection of the frame-shaped tension bracket opposite the coupling to the clamping limb or can form such a transverse connection. The second effective contour can be arranged between the coupling and the transverse connection of the tension bracket and project, for example, as a divided guide surface from a lateral frame web of the tension bracket.Alternatively or additionally, the tension bracket can have a first engagement region with a first guide contour for the first pusher section of the actuating element and a second engagement region with a second guide contour for the second pusher section of the actuating element. The guide contours of the first and second engagement regions can in particular be formed differently and can be adapted to a cross-sectional shape and / or cross-sectional size of the respective associated pusher section. The engagement regions can be connected to one another and together form an opening within the frame-shaped tension bow. By providing a separate engagement region for the first and second pusher sections, in particular with guide contours adapted to the pusher sections, it can be predefined and controlled structurally that the first actuation contour of the actuation element interacts with the first active contour of the actuation section and that the second actuation contour of the actuation element interacts with the second active contour of the actuation section.According to a development of the embodiment described above, the first engagement region can have a smaller cross-sectional area than the second engagement region and the first pusher portion can have a smaller cross-sectional area than the second pusher portion. As a result, the engagement regions are adapted to different cross-sectional sizes of the associated pusher portions and can control the stepwise displacement of the clamping limb by geometric fit.For example, the first engagement region can form a guide contour which corresponds to the circumferential contour or cross-sectional shape of the first pusher section, so that the latter can enter the first engagement region. The second engagement region can form, for example, a step-shaped widening with respect to the first engagement region. The second pusher portion of the actuating element can have a corresponding cross-sectional widening with respect to the first pusher portion, through which the second pusher portion can enter the widened second engagement region but not the first engagement region. In other words, a narrow first pusher section can engage in a narrow slot of the actuating section of the clamping spring and deflect the clamping limb by a first displacement path and a wide second pusher section can engage in a wide slot of the actuating section of the clamping spring and deflect the clamping limb by a second displacement path. The actuating element can thereby perform a continuous actuating movement.According to one embodiment, the first actuating contour and / or the second actuating contour of the actuating element can be designed as a ramp surface. The ramp surface can form an oblique plane with respect to a displacement direction of the actuating element upon actuation, i.e. an oblique plane with respect to the translation direction of an actuating presser or with respect to the rotation direction of an actuating lever. An actuation contour designed as a ramp surface allows the actuation contour to run smoothly on the operative contour of the actuation section and allows the clamping limb to be displaced gradually over the actuation section. The ramp surface can extend inclined with respect to a longitudinal axis of the actuating element. In other words, the first and / or second actuating contour can be arranged running obliquely relative to a longitudinal extent of the actuating element. The pusher sections can have a wedge shape in the region of the first and / or second actuation contour, in which the inclined surface of the wedge forms the ramp surface. The ramp surface can face, for example, a guide surface of an actuating section designed as a tension bracket. The ramp surface can bring about a gradual displacement of the clamping leg by introducing a compressive force into the effective contour of the actuating section and correspondingly transmitting a tensile force to the clamping leg. If the first actuating contour and the second actuating contour of the actuating element are designed as ramp surfaces, a very narrow actuating element can be provided, wherein the actuating contours can implement a multiple displacement path of the clamping limb as a result of their interaction, which takes place successively during actuation, with the active contours of the actuating section. A distance between the first and second actuation contours can correspond to at least one pusher width at the widest point of the wedge shape of the first pusher section, such that the clamping leg can be displaced during the first actuation path of the actuation element by the pusher width at the widest point of the wedge shape of the first pusher section as a first displacement path and can subsequently be displaced by the pusher width at the widest point of the wedge shape of the second pusher section as a second displacement path.If the first actuating contour and the second actuating contour of the actuating element are designed as ramp surfaces, it can be provided that a respective angle of inclination of the first and second actuating contours designed as ramp surfaces with respect to a longitudinal axis of the actuating element are different from one another. For example, the first actuating contour can have a greater inclination with respect to the longitudinal axis of the actuating element than the second actuating contour or vice versa. This provides ramp surfaces of different slope, so that during the first and second actuation paths of the actuation element, different force conditions can be implemented, which can be used, for example, for easier deflection of the clamping leg with increasing spring counterforce in the direction of the open position of the clamping leg. The angle of inclination of the ramp surface may define a slope of the ramp. The slope can be continuous along the ramp surface or can also vary, for example increase. According to one embodiment, the slopes of the ramps of the first and second actuating contours can be designed such that the force exertion to be applied to the actuating element and / or the actuating force transmitted to the clamping limb is substantially uniform over an entire actuating path of the actuating element. The first actuating contour can point in the same direction as the second actuating contour.According to one embodiment, the first actuating contour can form an end face of the actuating element. The end face is located on the end face on a free end of the actuating element, which is in particular configured as an elongate component, and can be opposite, for example, a further end face of the actuating element, which is configured as an actuating face. The first actuating contour can strike the actuating section of the clamping spring as a first surface as an end face when the actuating element is translated in the actuating direction and act on the first active contour of the actuating section. Depending on the embodiment, the end face can form an orthogonal transverse surface of the actuating element or an inclined ramp surface. If the end face of the actuating element is designed as a first actuating contour, a compact design of the actuating element can be provided.According to one embodiment, the second actuation contour can be offset in a step-like manner with respect to the first actuation contour. As a result, a second actuation contour offset in a defined manner with respect to the first actuation contour can be formed, to which the second effective contour of the actuation section can be geometrically adapted. The second actuation contour may protrude laterally with respect to the first actuation contour in order to form a step, wherein the step surface may form the second actuation contour. Depending on the embodiment, the step surface can form an orthogonal transverse surface or an inclined ramp surface of the actuating element on the circumference thereof. Due to the step-shaped offset, the actuating element can be given an asymmetrical shape which can be used, for example, via a corresponding asymmetrical shape of the engagement regions of an actuating section of the clamping spring configured as a tension bracket for controlling the actuation of the clamping limb via the first and second pusher sections of the actuating element. With an asymmetric shape, an even more compact, slender actuating element can be provided. If the first and second actuation contours are designed as ramp surfaces, the actuation element can in other words have two inclined actuation surfaces which are stepped in width and which cooperate with counter-surfaces of different widths as active contours on the actuation section of the clamping spring.According to one embodiment, the actuating element can have two second actuating contours offset in a step-like manner with respect to the first actuating contour on opposite sides of the first actuating contour. This allows more uniform force transmission from the second actuating contour to the second active contour. In addition, the actuating element can thereby be given a symmetrical shape with a cross-sectional widening at the transition of the first pusher section into the second pusher section, which can be used, for example, via a corresponding symmetrical shape and cross-sectional widening of the engagement regions of an actuating section of the clamping spring configured as a tension strap for controlling the actuation of the clamping limb via the first and second pusher sections of the actuating element.The effective contours of the actuating section, which are formed for example as guide surfaces, can be formed to match a single protruding step or two mutually opposite steps of the second actuating contour, for example as a single guide surface on one side of the actuating section or as a divided guide surface on two mutually opposite sides of the actuating section.According to one embodiment, the busbar and / or the clamping spring may have a guide portion on which the actuating element may slide during its displacement. As a result, the actuating presser can be additionally stabilized and guided during an actuating operation. The busbar can have, for example, a material tongue which is bent below the actuating section of the clamping spring and forms the guide section. The busbar can also have a support section on which a contact limb of the clamping spring is supported, wherein a side of the support section facing away from the contact limb can have the guide section for the actuating element. Furthermore, it is conceivable for the actuating element to slide on the contact limb of the clamping spring, such that the guide portion can be arranged on the contact limb.According to one embodiment, the spring force clamping connection can have a restoring mechanism which is configured for automatic displacement of the clamping limb from the open position into the clamping position when a conductor is introduced into the conductor connection terminal. In order to hold the clamping spring for the return initially in the open position, holding contours formed for positive locking are required at least on the clamping spring or an additional holding element. The reset mechanism, which can be triggered by an inserted electrical conductor, makes it possible to dispense with a further active actuating operation of a user of the conductor connection terminal for returning the clamping limb into the clamping position, and the handling of the conductor connection terminal is further simplified. Conductor connection terminals with such a reset mechanism are also referred to as snap-in conductor connection terminals, for example. A return of the clamping leg into the clamping position can be triggered with such a return mechanism, for example, by a mechanical contacting of the inserted conductor with a triggering element. A return of the actuating element into its starting position before its actuation can be effected by the return mechanism or decoupled from the return mechanism and can be carried out manually, depending on the embodiment.In the context of this application, the words "a / an", unless expressly defined otherwise, are not to be understood as a numerical word, but rather as an indeterminate article having the word sense of "at least one / one".The invention permits various embodiments and is explained in more detail below on the basis of exemplary embodiments with the accompanying drawings. They show in schematic form: FIGS. 1 a- 1 c show an actuation presser for a conductor connection terminal according to a first embodiment in a perspective front view, a side view and a front view; FIGS. 2 a- 2 c show an actuation presser for a conductor connection terminal according to a second embodiment in a perspective front view, a side view and a front view; FIGS. 3 a- 3 b show a conductor connection terminal according to an embodiment in an unactuated state in a sectional side view and a perspective front view; FIG. 3 c is an isolated representation of an actuator, a clamping spring and a busbar of the conductor connection terminal according to FIGS. 3 a- 3 bin a side view; FIG. 3d is an isolated view of the actuator and the clamping spring of the conductor connection terminal according to FIGS. 3a-3b in a perspective front view; FIGS. 4 a- 4 b show the conductor connection terminal according to FIGS. 3 a- 3 bin a half-actuated state in a sectional side view and a perspective front view; FIG. 4 c is an isolated representation of the actuator, the clamping spring and the busbar of the conductor connection terminal according to FIGS. 4 a- 4 bin a side view; FIG. 4d is an isolated view of the actuator and the clamping spring of the conductor connection terminal according to FIGS. 4a-4b in a perspective front view; FIGS. 5 a- 5 b show the conductor connection terminal according to FIGS. 3 a- 3 bin a fully actuated state in a sectional side view and a perspective front view; FIG. 5 c is an isolated representation of the actuator, the clamping spring and the busbar of the conductor connection terminal according to FIGS. 5 a- 5 bin a side view; and FIG. 5d is an isolated view of the actuator and the clamping spring of the conductor connection terminal according to FIGS. 5a-5b in a perspective front view; FIG. 6 a is a side sectional view of a second embodiment of a conductor terminal with pivotable actuation element in the closed position; FIG. 6 b shows a perspective view of the conductor connection terminal from FIG. 6 a; FIG. 6 c is a side view of a spring force terminal connection with a pivotable actuating element of the conductor terminal connection from FIGS. 6 aand 6 b ; FIG. 6 d shows a perspective view of the spring force clamping connection with pivotable actuating element from FIG. 6 c; FIG. 7 a is a side sectional view of the second embodiment of the conductor connection terminal with pivotable actuation element in a partially opened position; FIG. 7 b shows a perspective view of the conductor connection terminal from FIG. 7 a in the partially opened position; FIG. 7 c shows a side view of the spring force terminal connection with pivotable actuating element of the conductor terminal from FIGS. 7 aand 7 bin the partially opened position; FIG. 7 d is a perspective view of the spring force clamping connection with pivotable actuating element from FIG. 7 cin the partially opened position; FIG. 8 a is a side sectional view of the second embodiment of the conductor connection terminal with pivotable actuating element in the open position; FIG. 8 b shows a perspective view of the conductor connection terminal from FIG. 8 a in the open position; FIG. 8 c is a side view of the spring force terminal connection with pivotable actuating element of the conductor terminal from FIGS. 8 aand 8 bin the open position; FIG. 8 d shows a perspective view of the spring force clamping connection with pivotable actuating element from FIG. 8 cin the open position; FIG. 9 a shows a perspective view of the spring force clamping connection with pivotable actuating element in the closed position without a busbar; FIG. 9 b shows a perspective view of the spring force clamping connection with pivotable actuating element in the partially open position without a busbar; FIG. 9 c shows a perspective view of the spring force clamping connection with pivotable actuating element in the open position without a busbar; FIG. 10 a shows a side view of the second embodiment of the conductor connection terminal with pivotable actuating element in the closed position and hold-open triggering element; FIG. 10 b is a side view of the conductor connection terminal from FIG. 10 a with the pivotable actuating element in the partially opened position and the hold-open triggering element; FIG. 10 c is a side view of the conductor connection terminal from FIG. 10 awith a pivotable actuating element and clamping legs latched to the hold-open triggering element in the open position; FIG. 11 a is a side view of the conductor connection terminal from FIG. 6 awith a pivotable actuating element in the closed position; FIG. 11 b is a side view of the conductor connection terminal from FIG. 7 awith the pivotable actuating element in the partially opened position; FIG. 11 c is a side view of the conductor connection terminal from FIG. 8 a with a pivotable actuating element in the open position; FIG. 12 a shows a front view of the conductor connection terminal with section line A-A of the sectional view from FIG. 6 awith the pivotable actuating element in the closed position; FIG. 12 b shows a front view of the conductor connection terminal with section line B-B of the sectional view from FIG. 7 awith the pivotable actuating element in the partially opened position; FIG. 12 c shows a front view of the conductor connection terminal with section line C-C of the sectional view from FIG. 8 awith a pivotable actuating element in the open position; FIG. 13a is a front view of the actuating lever for the second embodiment of the conductor connection terminal; FIG. 13 b is a side view of the actuating lever from FIG. 13 a; FIG. 13 c shows a perspective view of the actuating lever from FIGS. 13 aand 13 b.FIGS. 1 a, 1 band 1 c show an actuating element 6 in the form of an actuating presser for a conductor connection terminal 1 shown in FIGS. 3 a- 3 b, 4 a- 4 band 5 a- 5 bin accordance with a first embodiment.The actuating presser 6 is designed as an elongate, one-piece component and has a greater extent along its longitudinal axis L than in its width and depth direction. In the conductor connection terminal 1, the actuation presser 6 is provided for a translatory actuation along its longitudinal axis L. For actuation, the actuating presser 6 has an actuating surface 16 on one end face with a tool receptacle 17, by means of which comfortable actuation of the actuating presser 6 is possible, for example by introduction of a pressure force using a tool such as a screwdriver.The actuating pusher 6 has a first pusher section 8 awith a first actuating contour 9 aand a second pusher section 8 bwith a second actuating contour 9 b.The second actuating contour 9 bis offset relative to the first actuating contour 9 aaxially in the direction of the longitudinal axis L and radially to a (virtual) pivot axis of an actuating section 5 of a clamping spring 4, so that a defined separation between the actuating contours 9 a, 9 bis present. The actuating contours 9 a, 9 bare designed as ramp surfaces which run at an angle of inclination α 1, α 2 relative to the longitudinal axis L of the actuating presser 6. The first actuating contour 9 aconstitutes an inclined end face of the actuating presser 6. the second actuating contour 9 bis embodied as two actuating contours arranged opposite one another and projecting laterally from the first actuating contour 9 a, so that an actuating presser 6 is provided with an actuating region of substantially symmetrical configuration.The actuating pusher 6 furthermore has laterally at least one pusher stop 22 for limiting its translatory displacement in the conductor connection terminal 1.FIGS. 2 a, 2 band 2 c show an actuating presser 6 for a conductor connection terminal 1 shown in FIGS. 3 a- 3 b, 4 a- 4 band 5 a- 5 bin accordance with a second embodiment.The operation presser 6 according to the second embodiment is different from the operation presser 6 according to the first embodiment in the configuration of the first presser portion 8 awith the first operation contour 9 aand the second presser portion 8 bwith the second operation contour.As can be seen from FIGS. 2 ato 2 c, the second actuating contour 9 bis designed here as a single actuating contour offset in a stepwise manner from the first actuating contour 9 a, so that a narrow actuating presser 6 is provided with an essentially asymmetrically designed actuating region.FIGS. 3 ato 3 d show a conductor connection terminal 1 in various views, wherein component groups of the conductor connection terminal 1 are shown in isolation in FIGS. 3 cand 3 dfor the sake of better illustration.The conductor connection terminal 1 has a spring force clamping connection 2 for connecting an electrical conductor, not shown in detail, which can be clamped to a busbar 3 of the conductor connection terminal 1 by means of a clamping spring 4.As can be seen, for example, in FIG. 3 c, the busbar 3 has a material passage with a passage collar 3 a, on the inner side of which the electrical conductor can be clamped by means of a clamping limb 7 of the clamping spring 4.The conductor connection terminal 1 has an insulating housing 18 which accommodates the spring force clamping connection 2 and has a conductor insertion opening 19 via which the electrical conductor can be guided to the spring force clamping connection 2 in the insulating housing 18. The clamping spring 4 has a clamping leg 7 and a contact leg 21, which are connected to one another via a spring bend 20. The clamping leg 7 is configured for clamping an electrical conductor against the busbar 3 and for this purpose is displaceable between a clamping position K and an open position O, in which a conductor can be introduced between the clamping leg 7 and the busbar 3. FIGS. 3a to 3d show the clamping limb 7 in a clamping position K.For displacing the clamping leg 7 from the clamping position K into the open position O, an actuating presser 6 according to the first embodiment shown in FIGS. 1 ato 1 cis arranged in the conductor connection terminal 1, wherein in principle an actuating presser 6 according to the second embodiment would also be usable in an analogous manner. For the displacement of the clamping leg 7 from the clamping position K into the open position O, the clamping spring 4 additionally has an actuating section 5 coupled to the clamping leg 7, on which actuating section the actuating presser 6 can engage in order to displace the clamping leg 7. The actuating section 5 has a first effective contour 10 a, which can be seen, for example, in FIG. 3 c, and a second effective contour 10 b.The actuating pusher 6 is configured to displace the clamping limb 7 of the clamping spring 4 by a first displacement path 12 ashown in FIG. 3 cwhen being translated by a first actuating path 11 aillustrated in FIG. 3 aby interaction of the first actuating contour 9 awith the first active contour 10 a, and to displace the clamping limb 7 by a second displacement path 12 bwhen being translated by a second actuating path 11 bby interaction of the second actuating contour 9 bwith the second active contour 10 b. This realizes a multi-speed, compact actuating presser 6 with an efficient structure, with which a multistage displacement of the clamping limb 7 can be implemented. The actuating presser 6 engages with its actuating contours 9 a, 9 bafter one another with the first and second active contours 10 a, 10 bto successively displace the clamping limb 7 about the displacement paths 12 a, 12 b. The conductor connection terminal 1 can thus be effectively actuated with a small and uniform exertion of force.As can be seen in FIG. 3 c, the actuating contours 9 a, 9 band the active contours 10 a, 10 bhave contour surfaces facing one another, which can slide on one another, so that a gradual displacement of the clamping limb 7 can be implemented. The contour surfaces are differently designed with regard to their arrangement in order to separate an interaction of the first actuating contour 9 awith the first active contour 10 aand the second actuating contour 9 bwith the second active contour 10 bfrom one another and to control the successive engagement of the contours with one another. For example, the effective contour 10 bis designed as a divided guide surface and is arranged closer to the sides of the actuating section 5 than the coherent guide surface of the effective contour 10 aarranged more centrally. As a result, the effective contours 10 aare adapted to the actuating contours 9 a, 9 bof the actuating presser 6 which are spaced apart from one another.As can be seen, for example, in FIGS. 3 band 3 d, the actuating section 5 of the embodiment shown is designed as a tension bracket in order to simplify the displacement of the clamping limb 7 by means of the actuating presser 6. The tension bracket projects between a free end of the clamping leg 7 and the spring bow 20 of the clamping spring 4.The effective contours 10 a, 10 bprotrude from the tension bracket as guide surfaces. The tension bracket has a first engagement region 13 awith a first guide contour 14 afor the first pusher section 8 aof the actuating pusher 6 and a second engagement region 13 bwith a second guide contour 14 bfor the second pusher section 8 bof the actuating pusher 6. As a result, the engagement regions 13 a, 13 bare geometrically adapted to the pusher portions 8 a, 8 b. The first pusher portion 8 ais formed to be narrower than the second pusher portion 8 band thus has a smaller cross-sectional area than the second pusher portion 8 b.The second engagement portion 13b forms a step-like extension with respect to the first engagement portion 13a. The geometric adaptation of the engagement regions 13 a, 13 bto the pusher sections 8 a, 8 bsecure that the first actuation contour 9 acooperates with the first active contour 10 aand the second actuation contour 9 bcooperates with the second active contour 10 b. The actuating contours 9 a, 9 b, which are designed as ramp surfaces and which run at an angle of inclination α 1, α 2 relative to the longitudinal axis L of the actuating presser 6, make possible a smooth running of the actuating contours 9 a, 9 bon the active contours 10 a, 10 band a gradual displacement of the clamping limb 7. As can be seen in FIG. 3 a, the busbar 3 has a guide portion 15 on which the actuating pusher 6 can slide during its translatory displacement. Alternatively or additionally, it is also conceivable for the clamping spring 4, for example on its contact limb 21, to form such a guide portion.FIGS. 3 ato 3 d show the conductor connection terminal 1 and component groups of the conductor connection terminal 1 in an unactuated state, in which the clamping leg 7 of the clamping spring is in the clamping position K.In FIGS. 4a to 4d, the above-described conductor connection terminal 1 is shown in a half-actuated state in which the actuating pusher 6 has been displaced by the first actuating path 11a and the clamping limb 7 has been moved out of the clamping position K by a first displacement path 12a. In comparison with FIGS. 3 cand 4 c, it can be seen that during an actuation, first of all the first actuation contour 9 ais in engagement with the first active contour 10 aand, after a covered first actuation path 11 aof the actuation presser 6, the second actuation contour 9 bis in engagement with the second active contour 10 b.In FIGS. 5a to 5d, the above-described conductor connection terminal 1 is shown in a fully actuated state in which the actuating pusher 6 has been displaced by the second actuating path 11b and the clamping limb 7 has been moved by a second displacement path 12b into the open position O. In addition, it can be seen in FIG. 5 b how lateral pusher stops 22 of the actuating pusher 6 are placed on the tension bracket and prevent a further translation of the actuating pusher 6. The clamping leg 7 can be reset from the open position O into the clamping position K, for example, by means of a reset mechanism of the conductor connection terminal 1, which reset mechanism is not shown in detail.The proposed actuation principle can in principle be extended to any desired number of displacement stages with further interacting actuation contours and active contours.As an alternative to the actuating pressers shown in the exemplary embodiments, an actuating element 6 with a different displacement direction is conceivable, for example an actuating lever mounted pivotably, in which the first and second actuating contour lie on a curved path. A translationally displaceable actuating element 6 acted upon by a tensile force is also conceivable as the actuating presser.FIG. 6 ashows a side sectional view of a second embodiment of a conductor connection terminal 1 with a pivotable actuating element 6 in the closed position.The conductor connection terminal 1 has an insulating material housing 18 with a conductor insertion opening 19. A spring force clamping connection 2 with a busbar 3 and a clamping spring 4 is installed in the insulating material housing 18. The busbar 3 has a through-opening bounded by a rim 3a, into which the clamping leg 7 and the contact leg 21 of the clamping spring 4 project. The conductor insertion opening 19 opens out toward the through-opening. The insulating housing 18 has, on the side of the busbar 3 opposite the conductor insertion opening 19, a conductor receiving pocket 23 for receiving an electrical conductor inserted into the conductor insertion opening 19 and inserted through the conductor insertion opening of the busbar 3.The construction of the clamping spring 4 corresponds substantially to the first exemplary embodiment. An actuating section 5 projects from the clamping limb 7, which interacts with an actuating element 6 (i.e. an actuating lever 25) which is mounted pivotably about a pivot axis 24. The actuating element 6 is accommodated in an actuating opening 26 in the insulating material housing 18.As illustrated, the pivot axis 24 can be formed from a bearing journal of the insulating material housing 18 and a bearing opening in the actuating element 6. A reverse variant with a bearing pin on the actuating element 6, which dips into a bearing opening in the insulating material housing 18, is likewise possible. It is also conceivable to mount an annular bearing web which dips into a corresponding annular bearing groove. The actuating element 6 can also be mounted in a floating manner, so that the pivot axis migrates during the pivoting process.The actuating lever 25 has an end stop 27 which abuts against a stop contour 28 of the insulating material housing 18. The stop contour 28 is aligned with the end stop 27 and the pivot axis in such a way that the stop contour 28 forms a stop for the actuating lever 25 in the closed clamping position and further pivoting is prevented. The stop contour 28 can be formed integrally with the insulating material housing 18 adjacent to the contact limb 21.FIG. 6 bshows a perspective view of the conductor connection terminal 1 from FIG. 6 a.It can be seen that the actuating lever 25 rests on an end wall 29 delimiting the actuating opening 26 and an actuating end 30 of the actuating lever 25 protrudes from the contour of the insulating material housing 18. The end stop 27 is located on the end of the actuating lever 25 diametrically opposite the actuating end 30.FIG. 6 cshows a side view of a spring force terminal connection 2 with a pivotable actuating element 6 of the conductor terminal connection 1 from FIGS. 6 aand 6 b.It can be seen that the actuating lever 25 has a first actuating contour 9 awhich interacts with the first active contour 10 aprotruding from the actuating section 5. The first actuating contour 9a dips into an opening of the actuating section 5, which is bounded on the end face by the first active contour 10a, which is designed as a flap of material. The actuating lever 25 furthermore has a second actuating contour 9 b, which is offset from the first actuating contour 9 aand interacts with the second active contour 10 bof the actuating section 5.The end stop 27 is designed as a front platform of a narrower end section of the actuating lever 25 protruding from the pivot bearing 24. At this narrower end section, the first and second effective contours 10 a, 10 bare also formed.FIG. 6 d shows a perspective view of the spring force clamping connection 2 with a pivotable actuating element 6 from FIG. 6 c.It can be seen that the narrower end section with the first actuating contour 9 amerges into the opening of the actuating section 5 next to the first active section 10 a.FIG. 7 ashows a side sectional view of the second embodiment of the conductor connection terminal 1 with a pivotable actuating element 6 in a partially opened position.It becomes clear that after partial pivoting of the actuating lever 25, the second actuating contour 9 bengages with the second active contour 10 bon the actuating section 5.FIG. 7 bshows a perspective view of the conductor connection terminal 1 from FIG. 7 ain the partially opened position. The actuating lever 25 is pivoted upward and can still be pivoted further in both pivot directions clockwise and counter-clockwise.FIG. 7 cshows a side view of the spring force clamping terminal 2 and FIG. 7 dshows a perspective view of the spring force clamping terminal 2 with a pivotable actuating element 6 of the conductor terminal 1 from FIGS. 7 aand 7 bin the partially opened position. Both the first actuation contour 9 aand the second actuation contour 9 bb bear in each case on the first active contour 10 aand second active contour 10 b,respectively, in order to displace the clamping limb 7 by further pivoting in the counterclockwise direction about the pivot axis 24 with the aid of the actuation section 5 towards the contact limb 21 or towards the actuation lever 6.FIG. 8 ashows a side sectional view and FIG. 8 bshows a perspective view of the second embodiment of the conductor connection terminal 1 with a pivotable actuating element 6 in the open position.The first actuating contour 9a is largely pivoted out of the opening in the actuating section 5 and is no longer in engagement with the first active contour 10a. The second actuating contour 9 b, on the other hand, abuts the second active contour 10 b, so that the actuating section 5 together with the clamping leg 7 connected thereto is displaced to such an extent that the clamping leg 7 abuts the contact leg 21 and the clamping point formed between the busbar 3 and the clamping edge at the free end of the clamping leg 7 is open for clamping an electrical conductor.FIG. 8 cshows a side view and FIG. 8 dshows a perspective view of the spring force terminal connection 2 with a pivotable actuating element 6 of the conductor terminal connection 1 from FIGS. 8 aand 8 bin the open position.In this case, the two mutually offset first and second actuating portions 9 a, 9 bcan be seen at the narrower end portion of the actuating lever 25 adjoining the pivot bearing 24. The first actuating contour 9a is narrower than the second actuating contour 9b. In addition, the first actuating contour 9 ais arranged behind the second actuating contour 9 b, as seen in the direction from the contact limb 21 toward the pivot bearing 24. The first and second actuation contours 9 a, 9 bcross into one another in a step.FIG. 9 ashows a perspective view of the spring force clamping connection 2 with a pivotable actuating element 6 in the closed position without a busbar 3.It can be seen that the actuating lever 25 has a narrow end section adjoining the pivot bearing 24 with an end stop 27. The end stop 27 is positioned adjacent to the contact limb 21 in the closed position and has a stop plane. A perpendicular standing on the stop plane approximately intersects the spring curve 20.It is also clear that the first effective contour 10a in the actuating section 5 is formed at a narrow bay at the trailing end of an opening in the actuating section 5. The first actuating contour 9a, which is designed as a correspondingly narrow web-like projection, protrudes into this bay and comes into contact with the first active contour 10a, which is designed there on the end wall.At the transition of the wider opening into the narrower bay, the end walls there form the second effective contour 10 b. The wider section of the actuating lever 25 adjoining the narrow web-like projection with the first actuating contour 9 awith a step has the second actuating contour 9 b. This second actuating contour 9 bis offset in the direction from the first active contour 10 ato the contact limb 21 in relation to the first actuating contour 9 a. On a circular path intersecting the first and second active contours 10 a, 10 bacross the pivot axis 24 as the center of the circle, the first and second actuating contours 9 a, 9 bare arranged one behind the other, so that during a pivoting movement they come into contact successively with the respective first or second active contour 10 a, 10 bat a different pivot angle in each case.FIG. 9 bshows a perspective view of the spring force clamping connection 2 with a pivotable actuating element 6 in the partially open position.It becomes clear that the first actuating contour 9 acooperates with the first active contour 10 ato displace the actuating section 5 by applying force to the first active contour 10 a. The second actuating contour 9 bdoes not yet interact with the second active contour 10 b.FIG. 9 cshows a perspective view of the spring force clamping connection 2 with a pivotable actuating element 6 in the open position.The first actuating contour 9a is largely pivoted out of the bay with the first active contour 10a and no longer exerts any substantial force on the first active contour 10a. The second actuating contour 9 b now comes into contact with the second active contour 10 bto displace the actuating section 5 by applying force to the second active contour 10 b.FIG. 10 ashows a side view of the second embodiment of the conductor connection terminal 1 with a pivotable actuating element 6 in the closed position and with a hold-open triggering element 30.The structure of the spring force clamping terminal 2 and the operating member 6 is similar to the above-described embodiment. Now, a hold-open triggering element 30 is additionally provided.FIG. 10 bshows a side view of the conductor connection terminal 1 from FIG. 10 awith a pivotable actuating element 6 in the partially open position and with a hold-open triggering element 30. the hold-open triggering element 30 is fixed with a fastening section 31 to the busbar 3 or optionally to the insulating material housing 18. After bending, it extends into the conductor collection pocket 23 and has a latching contour 32 in the form of a latching tab projecting toward the busbar 3. This can be exposed in a bend from the sheet metal material of the hold-open triggering element 30. The hold-open trip member 30 terminates with a trip portion 33 which is transversely aligned with the conductor insertion opening 19 (i.e., the conductor insertion channel). An electrical conductor inserted into the conductor insertion opening 19 thus impinges on the release section 33 in order to displace the latter together with the latching contour 32 connected thereto.FIG. 10 cshows a side view of the conductor connection terminal 1 from FIG. 10 awith a pivotable actuating element 6 and clamping legs 7 latched in the open position on the latching contour 32 of the hold-open triggering element 30. for this purpose, the clamping leg 7 is displaced towards the contact leg 21 by pivoting the actuating lever 25 and applying force to the actuating section 5 until the free end of the clamping leg 7 reaches behind the latching contour 32. The latching contour 32 thus forms a stop for the clamping leg 7, which presses against the latching contour 32 by the spring force of the clamping spring 4 and latches there.An electrical conductor can now be inserted into the conductor insertion opening 19 and can be led past the clamping point kept open. It strikes the release section 33 and exerts a release force in the conductor insertion direction, which displaces the spring-elastic hold-open release element 30 together with the latching contour 32 and disengages the clamping leg 7. The clamping leg 7 can then move freely to the clamping section 34 on the busbar 3 by the spring force of the clamping spring 4 and can clamp the electrical conductor between the clamping edge at the free end of the clamping leg 7 and the clamping section 34.Such a hold-open trip member 30 can also be used in the lead terminal 1 of the first embodiment with operation pressers or other operation members.FIG. 11 ashows a side view of the conductor connection terminal 1 from FIG. 6 awith the pivotable actuating element 6 in the closed position. The insulating material housing 18 can be open laterally in order to insert the spring force clamping connection 2 with the busbar 3, the clamping spring 4 and the actuating lever 25 into the insulating material housing 18.FIG. 11 bshows a side view of the conductor connection terminal 1 from FIG. 7 awith the pivotable actuating element 6 in the partially opened position.FIG. 11 cshows a side view of the conductor connection terminal 1 from FIG. 8 awith a pivotable actuating element in the open position.FIG. 12 ashows a front view of the conductor connection terminal 1 with the section line A-A of the sectional view from FIG. 6 awith the pivotable actuating element 6 in the closed position.FIG. 12 bshows a front view of the conductor connection terminal 1 with the section line B-B of the sectional view from FIG. 7 awith the pivotable actuating element 6 in the partially opened position.FIG. 12 cshows a front view of the conductor connection terminal 1 with the section line C-C of the sectional view from FIG. 8 awith the pivotable actuating element 6 in the open position.FIG. 13 ashows a front view of the actuating lever 25 for the second embodiment of the conductor connection terminal 1, It can be seen that a central web for forming the first actuating contour 9 aprotrudes at the outgoing end of the actuating lever 25, opposite the actuating end 30. The web merges into a widened section. In this transition, a step is formed on both sides next to the web, which step forms the second actuation contour 9 b.FIG. 13 bshows a side view of the actuating lever 25 from FIG. 13 a. It is clear that a bearing opening 35 for the pivot bearing 24 is present. The web is connected to the bearing opening with the first actuating contour 9 aand the wider section is connected to the second actuating contour 9 boffset from the first actuating contour.FIG. 13 cshows a perspective view of the actuating lever 25 from FIGS. 13 aand 13 b. It is clear here that the first and second actuating contours 9 a, 9 bare arranged radially of the bearing opening 35 and in each case offset with respect to one another. The first actuating contour 9 ais present on a triangular web, wherein the end side facing away from the actuating end 30 can be curved.List of reference characters1 Conductor connection terminal 2 Spring force clamping connection 3 Busbar 3 aZugs collar 4 Clamping spring 5 Actuating section 6 Actuating element / pusher 7 Clamping limb 8 aFirst pusher section 8 bSecond pusher section 9 aFirst actuating contour 9 bSecond actuating contour 10 aFirst active contour 10 bSecond active contour 11 aFirst actuating path 11 bSecond actuating path 12 aFirst displacement path 12 bSecond displacement path 13 aFirst engagement region 13 bSecond engagement region 14 aFirst guide contour 14 bSecond guide contour 15 Guide section 16 Actuating surface 17 Tool receptacle 18 Insulating material housing 19 Conductor insertion opening 20 Spring bend 21 Contact limb 22 Pusher stop 23 Conductor collection pocket 24 Pivot axis 25 Actuating lever 26 Actuating opening 27 End stop 28 Stop contour 29 End wall 30 Actuating end 31 Fastening section 32 Latching contour 33 Release section 34 clamping section 35 bearing opening K clamping position L longitudinal axis O open position α 1 first inclination angle α 2 second inclination angle

Claims

Conductor connection terminal (1) with a spring force clamping connection (2) which has a busbar (3) and a clamping spring (4) for connecting an electrical conductor to the busbar (3) by means of the clamping spring (4), wherein the conductor connection terminal (1) has an actuating element (6) which acts on an actuating section (5) of the clamping spring (4) for displacing a clamping limb (7) of the clamping spring (4) from a clamping position (K) into an open position (O), characterized in that the actuating element (6) has a first pusher section (8a) with a first actuating contour (9a) and a second pusher section (8b) with a second actuating contour (9b), and in that the actuating section (5) of the clamping spring (4) has a first active contour (10a) and a second active contour (10b), wherein the actuating element (6) is configured - to displace the clamping limb (7) of the clamping spring (4) by a first displacement path (12a) when the actuating element (6) is displaced by a first actuation path (11a) by interaction of the first actuation contour (9a) with the first active contour (10a), and - to displace the clamping limb (7) of the clamping spring (4) by a second displacement path (12b) when the actuating element (6) is displaced by a second actuation path (11b) by interaction of the second actuation contour (9b) with the second active contour (10b).Conductor connection terminal (1) according to Claim 1, characterized in that the actuating section (5) of the clamping spring (4) is designed as a tension bracket.Conductor connection terminal (1) according to claim 2, characterised in that the first and second effective contours (10a, 10b) of the tension bracket are formed as guide surfaces which project from the tension bracket and are spaced apart from one another.Conductor connection terminal (1) according to Claim 2 or 3, characterized in that the tension bracket has a first engagement region (13a) with a first guide contour (14a) for the first pusher section (8a) of the actuating element (6) and a second engagement region (13b) with a second guide contour (14b) for the second pusher section (8b) of the actuating element (6).The lead terminal (1) according to claim 4, characterized in that the first engaging portion (13a) has a smaller cross-sectional area than the second engaging portion (13b), and that the first pusher portion (8a) has a smaller cross-sectional area than the second pusher portion (8b).Conductor connection terminal (1) according to one of the preceding claims, characterized in that the first actuating contour (9a) and / or the second actuating contour (9b) of the actuating element (6) is designed as a ramp surface.Conductor connection terminal (1) according to claim 6, characterised in that the first actuating contour (9a) and the second actuating contour (9b) point in the same direction.Conductor connection terminal (1) according to Claim 6 or 7, characterized in that a respective angle of inclination (α 1, α 2) of the first and second actuating contours (9a, 9b) designed as ramp surfaces with respect to a longitudinal axis (L) of the actuating element (6) are different from one another.Conductor connection terminal (1) according to one of the preceding claims, characterized in that the first actuating contour (9a) forms an end face of the actuating element (6).Conductor connection terminal (1) according to one of the preceding claims, characterized in that the second actuating contour (9b) is offset in a step-like manner with respect to the first actuating contour (9a).Conductor connection terminal (1) according to one of the preceding claims, characterized in that the actuating element (6) has two second actuating contours (9b) offset stepwise with respect to the first actuating contour (9a) on opposite sides of the first actuating contour (9a).The conductor connection terminal (1) according to any one of the preceding claims, characterized in that the busbar (3) and / or the clamping spring (4) has a guide portion (15), on which the actuating element (6) can slide during its displacement.Conductor connection terminal (1) according to one of the preceding claims, characterized in that the spring force clamping connection (2) has a resetting mechanism which is configured for automatic displacement of the clamping limb (7) from the open position (O) into the clamping position (K) when a conductor is introduced into the conductor connection terminal (1).Conductor connection terminal (1) according to one of the preceding claims, characterized in that the actuating element (6) is a translationally displaceable actuating presser.The conductor connection terminal (1) according to claim 14, characterized in that the first pusher portion (8a) is arranged offset from the second pusher portion (8b) in the direction of the translatory displacement of the actuating pusher.Conductor connection terminal (1) according to Claims 1 to 13, characterized in that the actuating element (6) is a pivotably mounted actuating lever (25).Conductor connection terminal (1) according to claim 16, characterised in that the first pusher section (8a) is arranged offset relative to one another from the second pusher section (8b) in its direction of movement described on a respective curved path when the actuating lever (25) is pivoted.

Images