Connection terminal and operating mechanism for connection terminal

Abstract

The invention relates to a connection terminal (1), comprising a spring-loaded clamping connection (3), which has a clamping spring (4) and a busbar (5), to which an electrical conductor (2) can be clamped by means of a clamping leg (7) of the clamping spring; wherein the connection terminal (1) has an actuating mechanism with an actuating lever (9) which has an actuating section (13) acting on the clamping leg and which can be pivoted between a release position, in which the electrical conductor is freely movable between the clamping leg and the busbar, and a clamping position, in which the clamping leg clamps the electrical conductor on the busbar. The operating lever can be pivoted in its release position into a top dead center position in which the operating lever automatically holds its release position, the operating mechanism having a reset mechanism (17) which is configured to pivot the operating lever from the top dead center position into the clamping position by the force of an electrical conductor introduced into the terminal on the reset mechanism.

Description

Field of the Invention

[0001] The present invention relates to a terminal, the terminal having a spring force clamping connection member, the spring force clamping connection member having a clamping spring and a busbar, wherein an electrical wire can be clamped to the busbar by means of the clamping legs of the clamping spring. The terminal has an operating mechanism with an operating lever, the operating lever having an operating section acting on the clamping legs and being pivotable between a release position and a clamping position, in the release position, the wire can move freely between the clamping legs and the busbar, and in the clamping position, the clamping legs clamp the wire at the busbar.

[0002] The present invention also relates to an operating mechanism for a terminal, the operating mechanism having a pivotable operating lever, the operating lever having an operating section and being configured to be pivotable between a release position and a clamping position at the terminal, in the release position, the wire can move freely between the busbar and the clamping legs of the terminal, and in the clamping position, the clamping legs clamp the wire to the busbar. Background Art

[0003] DE 1 213 024 A discloses a terminal for a screwless wire connection of an electrical wire, the terminal having a rod which is rotatably supported in a terminal housing, is under spring pressure for generating contact pressure against one of the housing walls, and can be pivoted into a position which does not impede the insertion of the wire into the terminal opening. The rod latches in its position which does not impede the insertion of the wire. The latching can be released by inserting the wire, wherein the wire is fixedly clamped by the rod only after the latching is released.

[0004] EP 3 005 483 B1 discloses an electrical connection system having a guide sleeve for guiding an electrical wire to be clamped to a spring strip which cooperates with a connection member in order to produce an opening for the passage of the electrical wire through the opening of the guide sleeve. There is a movable rod which cooperates with the spring strip between two stable positions such that the spring strip is tensioned in a first holding-open position (i.e., release position) by the rod in an equilibrium position, in the first holding-open position, the opening is largest, and the spring strip is released in a second closed position (i.e., clamping position). There is provided an arrangement for triggering the rod by means of the electrical wire, wherein operating the triggering arrangement by the wire causes the equilibrium between the rod and the spring strip to be disrupted in the first open position.

[0005] The operating lever is held in the release position by locking and is reset by releasing the locking by means of the wire to be clamped. Summary of the Invention

[0006] The object of the present invention is to implement an improved terminal and an operating mechanism for a terminal. In particular, it should be possible to achieve a self-holding, robust and compact operation in the release position and, in addition, to reliably trigger the reset by the electric wire to be clamped.

[0007] It is proposed that the operating lever can be pivoted into an upper dead center position in its release position, in which the operating lever automatically holds its release position, and the operating lever has a reset mechanism which is configured to pivot the operating lever from the upper dead center position into the clamping position by the force action of the wire introduced into the terminal on the reset mechanism.

[0008] In the upper dead center position, the operating lever pivots against the spring force of the clamping leg. Starting from a pre-defined pivot angle, the operating lever can be self-holding and supported at the insulating material housing and / or the bus bar. This can be achieved, for example, under the condition of using the spring force in the upper dead center position of the lever and / or by means of an additional support structure at the lever. In the upper dead center position, the lever remains in its release position.

[0009] The reset mechanism can have an action surface against which the wire introduced into the terminal strikes and can thereby introduce a force into the reset mechanism. The reset mechanism can perform a translational movement or a pivoting movement itself when the force is introduced or transfer the force to other structures of the operating mechanism. It can release the blocking of the pre-tensioned element.

[0010] The reset mechanism can, for example, be an integral part of the operating lever, such that the wire acts directly on the structure of the operating lever without intermediate connection of other force transmission elements.

[0011] By not implementing locking but rather achieving a specific self-holding release of the release or open position with an upper dead center position, the reset can be carried out without a complex mechanical device acting on the locking point. This allows for a robust construction. The reset mechanism can be simply configured and realized spatially very close to the operating lever.

[0012] The reset mechanism can be configured to introduce a torque into the operating lever to release the operating lever from the upper dead center position.

[0013] For this purpose, the reset mechanism can define a lever arm with respect to the pivot axis of the operating lever. By the wire striking against the reset mechanism, a reset force is applied to the lever arm, which generates a torque and thereby pivots the operating lever at least to such an extent from the upper dead center position that the spring force of the clamping leg acts on the operating mechanism and displaces the operating lever into the clamping position.

[0014] Due to the lever arm, in the case of introducing the torque, it is sufficient to introduce a smaller force into the reset mechanism for the reset of the operating lever. A translational displacement can require significantly more force.

[0015] The reset mechanism can be configured to be connected in a sheet-like manner.

[0016] The shape of the connecting piece can be realized, for example, by a beam-like or pen-like structure, which has a length greater than the diameter of the structure. The sheet-like connecting structure can be, for example, cylindrical or cuboid-shaped. Other cross-sections such as oval or polygonal are also possible. The sheet-like connecting structure has a working surface for the wire at the surface facing the introduced wire.

[0017] By means of the structure configured to be connected in a sheet-like manner, a simple, material-saving and reliable embodiment of the reset mechanism can be achieved, which can be well integrated into a compact operating mechanism.

[0018] The operating section of the operating rod can be arranged at the side wall of the operating rod. Thereby, a particularly compact and stable structural form can be achieved.

[0019] The operating section can particularly be at the inner side of the side wall facing the introduced wire. Advantageously, operating sections are respectively arranged at two mutually opposite side walls. The operating sections can be at the mutually facing inner sides of two mutually opposite side walls of the operating rod.

[0020] The operating section can be, for example, in the plane of the side wall or protrude from it.

[0021] The operating section can have, for example, a cam shape. Thereby, it is possible to operate the clamping spring by an eccentric movement. The operating section can have a support structure for the top dead center position of the operating rod.

[0022] The reset mechanism can be arranged between two mutually opposite side walls of the operating rod.

[0023] Thereby, a particularly compact solution is achieved, in which the unused structural space that will ultimately be available is used for the reset mechanism and no additional structural space is required. The reset mechanism can be arranged in the intermediate space between the side walls of the operating rod. When connecting the mutually opposite side walls, the operating mechanism can be additionally stabilized by the reset mechanism.

[0024] The side walls can extend parallel to each other, for example. The side walls can be connected to each other by connecting sections that are connected to the side walls and extend perpendicular to the side walls. Advantageously, the side walls taper and lead to a gripping edge. The gripping edge can also be present at the end side of the gripping plate that connects the side walls to each other. Two mutually opposite side walls can pivot together about a common pivot axis when the operating rod pivots.

[0025] The reset mechanism can be arranged between two side walls such that sections of the reset mechanism project beyond at least one side wall. The reset mechanism can be connected to the side walls by means of one end each. To this end, the reset mechanism can be connected to the operating lever, for example, subsequently as a separate part after manufacturing the operating lever or integrally with the manufacturing of the operating lever.

[0026] The reset mechanism can connect the side walls. Thereby, a particularly stable embodiment of the operating lever can be achieved under the condition of utilizing the free space available for resetting.

[0027] The main extension of the reset mechanism can extend perpendicular to the side walls, for example.

[0028] By pivoting the reset mechanism from the clamping position to the release position by means of the operating lever, it can be displaced from a non-trigger position spaced apart from the wire insertion area of the terminal into a trigger position in the wire insertion area.

[0029] This ensures reliable triggering only when inserting the electrical wire. When inserting the electrical wire, the reset mechanism pivots away from the clamping area so as not to further damage the wire in the clamped state, in which the electrical wire is clamped between the clamping legs and the bus bar.

[0030] Only when the operating lever is in the release position, preferably in the top dead center position, is the reset mechanism in the movement path of the inserted wire. The reset mechanism can be arranged at the operating mechanism such that it can pivot about its pivot axis simultaneously with the operating lever. In the trigger position, the electrical wire can strike the reset mechanism and cause the pivoting of the operating lever, while this is not the case in other positions. By pivoting the operating lever from the release position to the clamping position, the reset mechanism can be displaced from the trigger position to the non-trigger position.

[0031] The operating lever can pivot about a pivot axis that extends through the operating section.

[0032] Such a pivotable operating lever can achieve a very compact structural form. In combination with the support structure at the operating section, the holding of the operating lever in the top dead center position can be achieved.

[0033] The operating section can have, for example, an operating edge facing the clamping leg, which rotates together when pivoting about a pivot axis intersecting the operating section, and can displace the clamping leg, for example, by the eccentric shape of the operating section.

[0034] The operating mechanism can have a support structure by means of which the operating mechanism is supported in the terminal. The support of the operating mechanism in the internal space of the terminal can achieve a simple and robust support. The support structure can be, for example, an outer contour at the operating mechanism that rolls directly in the support of the insulating material housing and / or the bus bar.

[0035] The support structure can be a rotary support part. Thereby, a smooth support can be achieved, and the support causes easier operation and reset of the operating lever by the force action of the inserted electrical wire to the reset mechanism.

[0036] The support structure can be realized, for example, by means of pins at the operating mechanism or the insulating material housing, and the pins are rotatable in corresponding holes at the mating parts. In this case, the rigid pivot axis then extends through the rotary support part. However, a suspended rotary support is also conceivable, in which the axis of rotation or the corresponding instantaneous center migrates during pivoting.

[0037] The operating lever can pivot about a pivot axis that is spaced from the force action surface of the reset mechanism. With this configuration of the lever arm, the force required for reset is reduced.

[0038] The force action surface can be the surface of the reset mechanism facing the inserted wire. The pivot axis should preferably extend spaced apart such that the pivot axis does not intersect the force action surface or does not extend in its plane.

[0039] The operating lever can have a gripping edge, and a manual lever force can be introduced into the operating lever at the gripping edge to pivot the operating lever between the clamping position and the release position. This allows simple and intuitive operation.

[0040] The operating lever can be manually pivoted from the clamping position to the release position to release the clamping part. The reset can be automatically carried out by the reset mechanism. However, manual reset by manual action at the gripping edge is also conceivable, which is advantageous, for example, in the case of very flexible wire ends. The gripping edge can extend perpendicular to the side wall and connect the side wall. Thereby, the operating lever can be configured more stably. The gripping edge can be spaced from the pivot axis to reduce the force required for reset using the lever arm.

[0041] The reset mechanism can be spaced from the gripping edge. Thereby, two different lever arms with respect to the pivot axis can be used, namely, on the one hand, the lever arm via the gripping edge and on the other hand, the lever arm via the reset mechanism.

[0042] The gripping edge does not form the reset mechanism here. Instead, the two functional elements are each spaced from the pivot axis. The gripping edge and the reset mechanism can be, for example, in a plane that is perpendicular to the plane in which the side wall is unfolded. The reset mechanism can be closer to the pivot axis than the gripping edge or vice versa.

[0043] The operating lever can have a tool receiving part. By means of an additional tool, the lever arm can be extended, so that the force required for operation can be reduced. The tool receiving part can be formed at the lever additionally or instead of the gripping edge. Thus, the tool receiving part can be arranged instead of the gripping edge in order to achieve an even more compact structural form of the terminal. This is particularly advantageous in the case of narrow spatial relationships. The tool receiving part is particularly significant for automatic resetting.

[0044] The tool receiving part can be, for example, a slot, a cross recess, a Phillips recess or other notches having a contour matching the tool. The tool can be, for example, a screwdriver.

[0045] The reset mechanism can be pivotally supported at the terminal. This support enables better utilization of the lever arm. Thereby, resetting can already be carried out by applying a small force.

[0046] The reset mechanism itself can have its own pivot axis, which, for example, extends through a pivot support, by means of which the reset mechanism is supported in the insulating material housing. The reset mechanism can, for example, form a toggle lever, one lever end of which can be operated by the electric conductor to be clamped, so that the reset mechanism pivots. The other lever end of the toggle lever can be connected to the operating lever, which is displaced from the top dead center position towards the clamping position when the reset mechanism pivots.

[0047] The reset mechanism can have a safety mechanism. Thereby, undesired triggering, for example by jolting, can be avoided. Such a safety mechanism requires a minimum force for triggering the reset mechanism.

[0048] The safety mechanism can be, for example, a spring element, which is connected to the reset mechanism and, for example, hooked into the insulating material housing. The minimum force is characterized by the properties of the spring element here.

[0049] The reset mechanism can have an adjustment mechanism. Thereby, a required and individual configuration of the reset is feasible.

[0050] Such an adjustable triggering force can be achieved, for example, by a spring element.

[0051] The above object is furthermore achieved by an operating mechanism for a terminal, which has a pivotable operating lever having an operating section and configured to be pivotable at the terminal between a release position and a clamping position. In the release position, a wire can move freely between the busbar and the clamping leg of the terminal, and in the clamping position, the clamping leg clamps the wire onto the busbar. It is proposed that the operating lever is configured to be pivotable into a top dead center position in its release position at the terminal, in which top dead center position the operating lever automatically maintains its release position, and the operating mechanism has a reset mechanism configured to pivot the operating lever from the top dead center position into the clamping position by the force action of the wire introduced into the terminal on the reset mechanism.

[0052] Such an operating mechanism can for example have a support structure which enables the holding in the top dead center position or the self-holding in the top dead center position of the lever by spring force. Description of the Drawings

[0053] The invention is described below in further detail with reference to the drawings by way of examples. The drawings show:

[0054] Figure 1 A side sectional view of a first embodiment of a terminal showing an open operating lever and a reset mechanism at the operating lever in a trigger position;

[0055] Figure 2 Showing Figure 1 A perspective view of the operating lever of the terminal in

[0056] Figure 3 A side sectional view of a second embodiment of a terminal showing an open operating lever and a reset mechanism at the operating lever in a trigger position;

[0057] Figure 4 Showing a pin-shaped support structure at the operating lever of the terminal in Figure 3 A perspective view of the operating lever of the terminal in

[0058] Figure 5 A side sectional view of a third embodiment of a terminal showing an open operating lever and a toggle lever as a reset mechanism for the operating lever;

[0059] Figure 6 Showing Figure 5 An enlarged detail view of detail D in Detailed Description of the Embodiment

[0060] Figure 1Side cross-sectional view showing a first embodiment of a terminal 1 for clamping an electrical conductor 2 at a spring-force clamping connection 3, said spring-force clamping connection having a clamping spring 4 and a busbar 5. The clamping spring 4 has: a support leg 6 supported at the busbar 5; a clamping leg 7 having a clamping edge for clamping the electrical conductor 2 between the clamping leg 7 and a clamping site at the busbar 5; and a spring bow 8 connecting the clamping leg 7 to the support leg 6.

[0061] In order to open the clamping spring 4 by the movement of the clamping leg 7 against the spring force of the clamping spring 4 towards the support leg 6, an operating lever 9 is pivotally mounted in an insulating housing 10.

[0062] The operating lever 9 has a side wall 11 which extends into the interior space of the insulating housing 10 and is pivotally supported in the insulating housing 10 by means of a support structure 12. The support structure 12 can be configured for floating support at the spring-force clamping connection 3 and / or the insulating housing 10. However, it is also conceivable, as shown, a rotational support about a fixed axis of rotation by means of at least one partially circular pivot pin, said pivot pin being configured with an operating section 13, i.e. a carrying profile, for moving the clamping leg 7 towards the support leg 6 when the operating lever 9 pivots from a horizontal closed position to a vertical open position.

[0063] In the shown open position, the operating lever 9 is in the top dead center position, in which the operating lever 9 automatically holds its release position. For this, the clamping spring 4 exerts a spring force on the operating lever 9, which acts against the pivoting movement for guiding to the closed position.

[0064] In the open position, the stripped end of the electrical conductor 2 can be guided through the wire receiving groove 14 of the insulating housing 10 past the clamping site in the wire connection area between the busbar 5 and the support leg 6. In the shown embodiment, the busbar 5 is bent transversely to the wire introduction direction L and has a wire insertion opening 15 which is delimited at its upper free end by a transverse connecting piece 16 which serves as a support for the support leg 6.

[0065] The operating lever 9 has a reset mechanism 17 which, in the shown embodiment, is configured as a connecting piece extending from the side wall 11. In the case of the open operating lever 9, as shown, the reset mechanism 17 at the operating lever 9 is in the trigger position. For this, the reset mechanism 17 is positioned in the wire introduction area. The reset mechanism 17 in the trigger position is preferably located between the end section, i.e. the bottom area, of the wire receiving groove 14 and the wire insertion opening 15 in the busbar 5 or the upstream wire introduction opening 18 in the insulating housing 10.

[0066] When the electrical conductor 2 is inserted along the conductor insertion direction L, the stripped end is guided through the conductor insertion opening 18 and the conductor penetration opening 15 and strikes against the connecting sheet-like reset mechanism 17, which is in the conductor insertion area facing the conductor receiving groove 14. Thereby, the electrical conductor 2 exerts a reset force F on the reset mechanism 17. When the reset force exceeds the holding force of the clamping spring 4 acting on the operating lever 9 to keep it in the top dead center position, by means of the reset force, the reset of the operating lever 9 from the top dead center position to the closed position can be achieved. The reset mechanism 17 is arranged offset with respect to the pivot axis of the operating lever 9 such that when the reset force F acts on the reset mechanism, a torque M is applied to the operating lever 9, and the torque pivots the operating lever 9 from the top dead center position at least to such an extent that the spring force of the clamping leg 7 acts on the operating section 13 (actuating profile) of the operating lever 9 in the direction of the reset torque M. As long as the turning point for guiding to the top dead center position during pivoting is reached when the operating lever 9 pivots back, no further force action on the reset mechanism 16 is required. Subsequently, the operating lever 9 automatically pivots back to the closed position by the force of the clamping spring 4.

[0067] Thereby, only a relatively small reset force of the electrical conductor 2 acting on the reset mechanism 16 is required, and the reset mechanism is required to overcome the holding force acting on the operating lever 9 in the top dead center position.

[0068] To open the spring force clamping connection, the operating lever 9 can be grasped at the gripping edge 19, which is present at the side wall 11 and / or at the gripping plate 20 extending from the side wall 11. The gripping edge 19 can be arranged at the free end of the operating lever 9. The free end projects from the insulating material housing 10 and, unlike the end section rotatably supported in the insulating material housing 10, is freely movable.

[0069] Visible from the cross-sectional view is the upwardly pivoted operating lever 9 for the spring force clamping connection 3 shown in the cross-sectional view and the closed operating lever behind it, and the gripping edge 19 of the closed operating lever projects from the insulating material housing 10 at the insertion side of the conductor insertion opening 18 for introducing the electrical conductor 2. This can be achieved by the inclined profile of the insulating material housing 10, as shown, or by the sufficient length of the operating lever 9 such that the operating lever projects forward from the profile of the insulating material housing 10.

[0070] Figure 2 Shown Figure 1Stereogram of the operating lever 9 therein. It can be seen that the operating lever 9 has two side walls 11 opposite to each other, the side walls are arranged spaced apart from each other and are connected to each other on the upper side by a gripping plate 20. The gripping plate 20 is at the free end region at the forefront. At the free end of the operating lever 9, a gripping edge 19 is provided, and the gripping edge forms the front end of the gripping plate 20 at the transition of the side walls 11.

[0071] At the opposite sides, the side walls 11 are connected to the connecting plate-shaped reset mechanism 17 approximately in the plane of the gripping plate 20. The connecting plate-shaped reset mechanism 17 extends transversely from the inner surface of the side wall 11 to the inner surface of the opposite side wall 11. The surface of the reset mechanism 17 pointing to the pivot axis S B forms a force application surface 21, and when the electric wire 2 is inserted into the wire introduction area, the reset force F can be applied to the force application surface.

[0072] Figure 3 Shows a second embodiment of the terminal block 1, in which a pin-shaped support structure 12 is provided. The rotating pin projects from the side wall 11, and the rotating pin sinks into the support opening of the insulating material housing 10 to form a rotating support of the support structure 12. In the illustrated embodiment, a rotating pin projects from each of the two opposite side walls 11.

[0073] However, it is also conceivable to have an opposite support structure 12 with support openings in the side wall 11 or in the two opposite side walls 11, and the rotating pins molded on the insulating material housing 10 respectively extend into the support openings.

[0074] The support structure 12 is positioned with respect to the force application surface 13 of the operating lever 9 such that in the upwardly flipped open position of the operating lever 9 shown, a torque or a holding force is applied to the operating lever 9 by the clamping leg 7, and the holding force holds the operating lever 9 in the open top dead center position.

[0075] Additionally, another external support structure 12a may be present at the side wall 11, and the external support structure is concentric with the rotating pin 12 and rolls on the curved support surface 22 of the insulating material housing.

[0076] Figure 4 Shows Figure 3 Stereogram of the operating lever 9 of the terminal block 1 therein. It can be seen the support structure 12 formed by the rotating pins projecting from the inner side of the side wall 11. The support structure has a spacing from the connecting plate-shaped reset mechanism 17, and the reset mechanism is configured as in the embodiment according to Figure 2 and is not visible in this view.

[0077] The side wall 11 is additionally on its inner side with respect to the pivot axis S of the operating lever 9 BIt has an operating profile configured in an eccentric wheel shape, and the operating profile forms a force application surface 13 for clamping the leg 7. When the operating lever 9 is pivoted to the open position, the force application surface 13 contacts the clamping leg 7 so as to displace it against the spring force of the clamping spring 4 towards the support leg 6, thereby opening the spring force clamping connection 3.

[0078] On the lower side of the operating profile, a curved external support structure 12a can be provided, and the external support structure acts together with the pivot axis S of the operating lever 9 B concentrically with a correspondingly curved support surface 22 of the insulating material housing 10.

[0079] It is also visible that the gripping edge 19 is spaced from the pivot axis S of the operating lever 9 B so as to form a lever arm therewith. By applying a force to the gripping edge 19, the operating lever 9 can be pivoted around the pivot axis S B to the open position.

[0080] Figure 5 A third embodiment of the terminal 1 is shown, and the terminal has a structure similar to that of the insulating material housing 10 and the operating lever 9 in Figure 3 the above embodiment. Therefore, the above description can be basically referred to.

[0081] The operating lever 9 has a locking profile 23 at its gripping plate 20, and the locking profile engages the insulating material housing 10 below in the shown open position of the operating lever 9. Thereby, a stop or locking portion is formed, which holds the operating lever 9 in the open position. In this embodiment, the upper dead center position can be achieved only by the locking mechanism. However, it is also conceivable that additionally, the position of the pivot axis S B and the position of the force application surface 13 of the clamping leg 7 on the operating lever 9 are selected such that the spring force of the clamping spring 4 holds the operating lever 9 in the open position.

[0082] The reset mechanism 17 is configured as a reset lever pivotally supported in the insulating material housing 10 around a pivot support portion 24 in this embodiment. It is an element separate from the insulating material housing 10 and the operating lever 9. In all embodiments, the operating lever 9 and the reset mechanism 17 integrally formed therewith or separately together form an operating mechanism for the spring force clamping connection 3.

[0083] The reset mechanism 17 has a force application surface 21 provided in the wire receiving groove 14, which transitions into a pivot bearing portion 24 (pivot axis) after bending, and a trigger section 25 is connected to the pivot bearing portion. The reset force F exerted on the force application surface 21 by the inserted electrical wire 2 causes the pivot of the reset lever (reset mechanism 17), and the pivot corresponds to the pivot direction of the operating lever 9 from the open position to the closed position. Here, the trigger section 25 acts on the locking profile 23 to guide the locking profile out of the locking stop of the insulating material housing 10. For this, the locking profile 23 can be molded, for example, as an elastic plastic section in the type of a film hinge onto the plastic material of the operating lever 9.

[0084] Visible in the closed operating lever behind the open operating lever 9 of the multi-pole terminal 1 is that the locking profile 23 projects from the plane of the gripping plate 20.

[0085] Figure 6 Shown Figure 5 is an enlarged detail section D therein. Here, the reset lever (reset mechanism 17) pivotally supported about the pivot bearing portion 24 can be seen better. The free end of the trigger section 25 remote from the pivot bearing portion 24 is arranged beside the locking tab, which forms the locking profile 23 of the operating lever 9 and engages under the top wall 26 of the insulating material housing 10. It is clear that the insulating material housing 10 thus forms a stop for the locking profile 23, which prevents the operating lever 9 from pivoting back from the shown open position in the direction of the torque M.

[0086] Now, if the reset lever (reset mechanism 17) is pivoted towards the locking profile 23 in such a way that the reset force F is applied to the opposite force application surface 21 via the electrical wire 2, the locking is removed and the operating lever 9 can pivot from the shown open position into the closed position. This is supported by the force exerted by the clamping leg 7 on the operating lever 9. The reset lever 17 guides the operating lever 9 away from the top dead center position by the removal of the locking and, if necessary, by an additional force pulse.

[0087] Also visible is that the bus bar 5 is bent transversely to the wire introduction direction L in this embodiment and has a wire insertion opening 15, which is delimited at its upper free end by a transverse connecting piece 16. The transverse connecting piece 16 serves as a support for the support leg 6, and the support leg is hooked into the wire insertion opening 15 and surrounds the transverse connecting piece 16.

[0088] The embodiment of the terminal 1 having a locking mechanism and a reset lever shown in Figure 5 and 6 can also be combined with differently configured operating levers 9, for example, with Figure 2The joystick 9 or other combinations of floating-supported joysticks 9 therein. The structure is adjusted such that the force application surface 21 of the reset element 17 that can vary in the structure is accessible when necessary.

[0089] List of reference numerals:

[0090] 1 Terminal

[0091] 2 Electric wire

[0092] 3 Spring-force clamping connection

[0093] 4 Clamping spring

[0094] 5 Busbar

[0095] 6 Support leg

[0096] 7 Clamping leg

[0097] 8 Spring bow

[0098] 9 Joystick

[0099] 10 Insulating material housing

[0100] 11 Side wall

[0101] 12 Support structure

[0102] 12a Support structure

[0103] 13 Operating section

[0104] 14 Wire storage groove

[0105] 15 Wire insertion opening

[0106] 16 Transverse connecting piece

[0107] 17 Reset mechanism

[0108] 18 Wire introduction opening

[0109] 19 Gripping edge

[0110] 20 Gripping plate

[0111] 21 Force application surface

[0112] 22 Support surface

[0113] 23 Locking profile

[0114] 24 Pivot support section

[0115] 25 Trigger section

[0116] 26 Top wall

[0117] S BPivot axis of the operating lever

Claims

1. A connecting terminal (1), comprising a spring force clamping connection (3), the spring force clamping connection having a clamping spring (4) and a busbar (5), wherein an electrical conductor can be clamped to the busbar (5) by means of a clamping leg (7) of the clamping spring (4), wherein the connecting terminal (1) has an operating mechanism with an operating lever (9), the operating lever having an operating section (13) acting on the clamping leg and being pivotable between a release position and a clamping position, in which the electrical conductor can move freely between the clamping leg (7) and the busbar (5), and in which the clamping leg (7) clamps the electrical conductor to the busbar (5), It is characterized in that The operating lever (9) can be pivoted to the top dead center position in its release position, in which the operating lever (9) automatically maintains its release position, and the operating mechanism has a reset mechanism (17), which is configured to pivot the operating lever (9) from the top dead center position to the clamping position through the force action (F) of the electrical wire introduced into the connecting terminal (1) on the reset mechanism (17).

2. The connecting terminal (1) according to claim 1, It is characterized in that The reset mechanism (17) is configured to introduce a torque (M) into the operating rod (9) to release the operating rod (9) from the top dead center position.

3. The connecting terminal (1) according to claim 1 or 2, It is characterized in that The restoring mechanism (17) is designed in the shape of a connecting plate.

4. The connecting terminal (1) according to any one of the preceding claims, It is characterized in that The operating section (13) of the operating lever (9) is arranged on a side wall (11) of the operating lever (9).

5. The connecting terminal (1) according to any one of the preceding claims, It is characterized in that The reset mechanism (17) is arranged between two side walls (11) of the operating rod (9) that are opposite to each other.

6. The connecting terminal (1) according to any one of the preceding claims, It is characterized in that By pivoting the operating lever (9) from the clamping position to the releasing position, the reset mechanism (17) can be displaced from a non-triggering position spaced apart from a wire insertion area of ​​the connecting terminal (1) to a triggering position in the wire insertion area.

7. The connecting terminal (1) according to any one of the preceding claims, It is characterized in that The operating lever (9) is capable of rotating about a pivot axis (S B ) is pivoted, and the pivot axis extends through the operating section (13).

8. The connecting terminal (1) according to any one of the preceding claims, It is characterized in that The operating lever (9) has a supporting structure (12), by means of which the operating lever (9) is supported in the connecting terminal (1).

9. The connecting terminal (1) according to claim 8, It is characterized in that The support structure (12) is a rotation support.

10. The connecting terminal (1) according to any one of the preceding claims, It is characterized in that The operating lever (9) is capable of rotating about a pivot axis (S B ) is pivoted, and the pivot axis is spaced apart from the force application surface (21) of the reset mechanism (17).

11. The connecting terminal (1) according to any one of the preceding claims, It is characterized in that The operating lever (9) has a grip edge (19) at which a manual lever force can be introduced into the operating lever (9) in order to pivot the operating lever (9) between the clamping position and the releasing position.

12. The connecting terminal (1) according to claim 11, It is characterized in that The resetting mechanism (17) is spaced apart from the gripping edge (19).

13. The connecting terminal (1) according to any one of the preceding claims, It is characterized in that The operating lever (9) has a tool receptacle.

14. The connecting terminal (1) according to any one of the preceding claims, It is characterized in that The resetting mechanism (17) is pivotably supported on the connecting terminal (1).

15. The connecting terminal (1) according to any one of the preceding claims, It is characterized in that The reset mechanism (17) has a safety mechanism.

16. The connecting terminal (1) according to any one of the preceding claims, It is characterized in that The reset mechanism (17) has an adjustment mechanism.

17. An operating mechanism for a terminal (1), the operating mechanism having a pivotable operating lever (9), the operating lever having an operating section (13) and being configured to be pivotable at the terminal (1) between a release position and a clamping position, in which the electrical conductor can move freely between a busbar (5) and a clamping leg (7) of the terminal (1), and in which the clamping leg (7) clamps the electrical conductor to the busbar (5), It is characterized in that The operating lever (9) is configured to be able to pivot to the top dead center position in its release position at the connecting terminal (1), in which the operating lever (9) automatically maintains its release position, and the operating mechanism has a reset mechanism (17), which is configured to pivot the operating lever (9) from the top dead center position to the clamping position through the force (F) of the electrical wire introduced into the connecting terminal (1) on the reset mechanism (17).

18. The operating mechanism according to claim 17, It is characterized in that The actuating device is designed according to one or more of the features of claims 1 to 16 .

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