Wiring terminal

Abstract

The invention relates to a connection terminal comprising an insulating material housing, a spring-loaded clamping connection in the insulating material housing for connecting electrical conductors, and an actuating element, the spring-loaded clamping connection comprising a busbar and a clamping spring, the clamping spring comprising: a clamping leg with a clamping edge, the clamping leg is used for clamping an electrical conductor to a contact section of a busbar; a support leg which is attached to the busbar and supports the clamping spring on the busbar; and a spring bow, which connects the supporting leg to the clamping leg. Furthermore, the insulating material housing has a conductor introduction channel leading to the contact section of the busbar and an actuation channel, the actuation element being movably mounted in the actuation channel and being configured to apply a force to the clamping leg in order to displace the clamping leg towards the support leg against the force of the clamping spring into the open holding position.

Description

TECHNICAL FIELD

[0001] The invention relates to a terminal having an insulating material housing, a spring force clamping connection for connecting an electrical conductor in the insulating material housing, and a handling element, wherein the spring force clamping connection has a busbar and a clamping spring, wherein the clamping spring has a clamping leg with a clamping edge for clamping an electrical conductor onto a contact section of the busbar, a bearing leg which bears against the busbar and supports the clamping spring at the busbar, and a spring bow which connects the bearing leg with the clamping leg, wherein the insulating material housing has a conductor introduction channel which leads to the contact section of the busbar and a handling channel, and wherein the handling element is movably supported in the handling channel and is configured for loading the clamping leg with a force in order to displace the clamping leg into an open holding position against the force of the clamping spring towards the bearing leg. BACKGROUND

[0002] The spring force clamping connection serves for clamping an electrical conductor onto a clamping site formed between the clamping leg of the clamping spring and the busbar. For connecting an electrical conductor, the clamping spring can be pressed away from the busbar by the electrical conductor against the force of the clamping spring in direct connection. This is possible for rigid conductors, but not in the case of stranded or twisted conductors.

[0003] For clamping an electrical conductor, there is a need to provide a spring force clamping connection which is self-holding in the open position. It is generally desirable here that the terminal with the spring force clamping connection open is delivered from the factory side.

[0004] DE 20 2011 051 466 U1 discloses a clamping spring for a connection terminal, which has a clamping leg which transitions into a first tensioning device, i.e. a spring bow, on which a base leg is connected and behind which a latching leg is connected. The latching leg has a protrusion which protrudes from the plane of the latching leg, which forms a stop for the clamping edge of the open clamping leg when the clamping leg is displaced towards the base leg against the spring force.

[0005] EP 2 466 689 B1 discloses a clamping contact for electrically connecting a conductor, which has a clamping site which comprises a contact area for abutting an electrical conductor and a spring leg, the free end of which holds the electrical conductor between the free end and the contact area in the closed state of the clamping contact. The clamping contact has a separate trigger lever which is arranged in the movement path of the electrical conductor and is in active connection with the spring leg which holds the spring leg in the open position.

[0006] WO 2021 / 105280 A1 discloses a direct plug-in terminal for connecting electrical conductors, having a busbar and a clamping spring which acts as a pressure spring and a retaining spring for latching the clamping spring in an open position. SUMMARY

[0007] On the basis thereof, it is the object of the present application to realize an improved spring force clamping connection and a terminal having such a spring force clamping connection.

[0008] The object is achieved by means of a terminal having the features of the embodiments. Advantageous embodiments are described in the following.

[0009] It is proposed that the actuating section laterally projects from the clamping leg and that the actuating element is guided past the side edges of the clamping leg to the actuating section and constitutes a force application for the actuating section.

[0010] By means of the at least one actuating section which projects laterally from the clamping leg, the actuating element can be guided past the side edges of the clamping leg to the actuating section in a space-saving manner, so that no structural space is required between the clamping leg and the inserted, clamped electrical conductor to accommodate a section of the actuating element.

[0011] The spring force clamping connection can be constituted in such a way that it is self- retaining in the open position. By this, the spring force clamping connection can be delivered, for example, with the clamping site open, and is unlocked by insertion of an electrical conductor, so that the clamping leg clamps the inserted electrical conductor on the contact section of the busbar. To this end, a retaining leg can be connected, for example, on the support leg, which has a latching contour which constitutes a clamping leg latching in the open retaining position against the spring force of the clamping spring deflected towards the support leg. However, other embodiments for constituting the latching contour are also conceivable, which can be constituted, for example, at a separate retaining open element.

[0012] By the structure according to the application, the latching of the clamping leg can be realized compactly by means of a retaining leg projecting from the support leg, which has a latching contour which cooperates with the clamping leg.

[0013] The actuating element can have an actuating head and two actuating webs projecting spaced apart from one another from the actuating head. At the mutually opposite side edges of the clamping leg, actuating sections can project from the clamping leg, wherein the actuating webs respectively extend past the side edges of the clamping leg to the associated actuating section. By this, a compact symmetrical actuation of the clamping leg is achieved by means of the actuating element.

[0014] To this end, the actuating element can be configured as an actuating presser which is linearly movably supported in the actuating channel in the actuating direction. However, a variant of the actuating element which is pivotably or floatingly supported by means of a pivoting push motion is also conceivable, which actuating element is guided past the side edges of the clamping leg by means of at least one actuating web and constitutes a force application for the associated actuating section.

[0015] The actuating element can have a stop contour. The insulation material housing and / or the clamping spring can have a counter stop contour, wherein the stop contour and the counter stop contour form a stop which fixes the actuating element in the actuating channel. Thereby, the actuating element can be held in an end position at the insulation material housing and / or the clamping spring by means of a form fit, for example in order to prevent the actuating element from falling out of the insulation material housing, in particular in the unactuated state.

[0016] In order to display a holding open state of the clamping spring, in which the clamping leg is latched at the holding leg in an open holding position, the actuating element can optionally be pressed against a wall of the actuating channel of the insulation material housing by means of at least one actuating section, in order to thereby be held in a pressed open position with frictional fit. Thereby, the locked open position can be visible to the user depending on the orientation of the actuating element.

[0017] The holding arm can be spring-elastic in the region of the latching contour. Thereby it can be achieved that the latching contour springs back into a latching orientation after the clamping leg has been unlatched, in which latching orientation the clamping leg which is displaced into the open holding position relative to the support leg can be latched at the latching contour.

[0018] The latching contour of the holding leg can be formed by a holding lug which projects from the holding leg or an end edge at the holding leg.

[0019] The holding leg can be curved away from the clamping leg adjacent to the latching contour. The holding leg can taper from the curve towards the support leg, wherein an end edge forms the latching contour in the transition of the side edge of the holding leg to the widened section which projects laterally from the holding leg at the transition to the curve. By the curve, a reinforcement of the holding leg can be induced in the region of the latching contour. At least one end edge which is produced by the tapering in the transition of the curve forms a stable latching contour without additional expenditure of deformation in the manufacture. The latching contour can be simply manufactured, since it is almost not influenced by tolerances. The provision of the latching contour in the region of the curve is very stable and insensitive with respect to external influences such as vibrations.

[0020] At two sides at the mutually opposite side edges of the tapering section of the holding leg, the widened section of the bend can laterally project at the holding leg and form a latching contour with its end edge respectively. By this, a symmetrical latching of the clamping leg at the holding leg is achieved. The end edge or the widened section can be provided in the transition of the holding leg to a connecting section which connects the holding leg with a trigger section of the trigger leg, which is explained in more detail below.

[0021] The latching tab can project from the clamping leg towards the holding leg and be configured for latching at the latching contour in the open holding position of the clamping leg. The locking tab can here be cut out in the lateral edge region of the clamping leg and be bent with its free end from the plane of the clamping leg towards the holding leg. The free end region of the clamping leg can here correspondingly taper more narrowly or again transition into a wider end section. The clamping edge for clamping the electrical conductor is preferably formed by the front edge of the free end of the clamping leg.

[0022] A trigger leg can be connected on the holding leg, in particular at the side towards the support leg, which extends with a trigger section into the middle axis of the conductor introduction channel and is configured to deflect and unlock the latching contour for the clamping leg latched in the open holding position by insertion into the conductor introduction channel for clamping onto the busbar. By means of the trigger leg the holding leg connected thereto can be displaced in order to move the latching contour away from the clamping leg and release the clamping leg. The clamping leg thus unlocked can thereby be displaced by the force of the clamping spring towards the contact section of the busbar in order to clamp the inserted electrical conductor which has hit the trigger section and displaced the holding leg.

[0023] The trigger leg can form the tapering free end of the clamping spring. By this, the trigger leg can be moved unhindered by the triggering force of the electrical conductor. Alternatively, however, it is also conceivable that the free end of the trigger leg is supported, for example, at the insulating material housing.

[0024] The insulating material housing can have a collision ramp which guides the electrical conductor to the trigger section, wherein the collision ramp is provided between the middle axis of the conductor introduction channel (Flucht) and the connecting section of the trigger leg which extends from the holding leg to the trigger section. This has the advantage that an unintended premature unlocking of the clamping leg by the electrical conductor hitting the connecting section is prevented. When the electrical conductor inserted into the conductor receiving recess moves towards the connecting section, the collision ramp provided in the conductor receiving recess of the insulating material housing blocks said electrical conductor. In contrast, the electrical conductor is guided to the trigger section and inserted far enough in order to be clamped when the electrical conductor loads the trigger section to unlock the clamping leg.

[0025] The busbar can have a conductor insertion opening, and the clamping spring can have its support leg and clamping leg protrude into the conductor insertion opening. By this, a narrow and compact embodiment of the terminal can be achieved. The conductor insertion opening can be formed by an end wall which is supported by the support leg, a contact tab which is opposite the end wall and which protrudes from the plane of the conductor insertion opening towards a conductor receiving recess or a trigger section arranged therein and which forms a contact section. It is conceivable that there are two side walls which are spaced apart from one another and which each extend parallel to one another between the end wall and the contact tab. At least one of the side walls can be formed as a lateral web. However, it is also conceivable that at least one of the side walls is formed as a side wall which protrudes from the plane of the conductor insertion opening. By this, a high stability and current-carrying capacity of the busbar can be achieved. However, it is alternatively also conceivable in relation thereto that the conductor insertion opening has a flange on the lower side of the busbar on the circumferential side, the lower side facing away from the upper side of the spring bow of the clamping spring, wherein a flange wall forms the contact section. The flange wall forming the contact section is preferably placed obliquely in order to provide a defined contact surface for clamping the electrical conductor.

[0026] The holding leg can be bent away from the clamping leg on the lower side below the busbar, the lower side facing away from the upper side of the spring bow of the clamping spring of the busbar.

[0027] The clamping spring can be supported at its support leg at an end wall delimiting the conductor insertion opening.

[0028] The support leg can have a section which protrudes into the conductor insertion opening tapering and be supported on the busbar by means of a support section which forms a transition of the tapering section to a wider section which extends towards the spring bow and which protrudes laterally from the tapering section. By this, the clamping spring is stably supported on the busbar by means of a self-supporting system in which the clamping force acting on the clamped electrical conductor and the counterforce acting on the support leg are received via the busbar. The support of the clamping spring on the busbar is effected in the transition of the wider region to the narrower region protruding into the conductor insertion opening by means of an end edge of the support section in order to form a form-fit fastening of the clamping spring on the busbar in the direction of insertion of the conductor.

[0029] The at least one actuating section can have its free end point towards the support leg. If there are a plurality of actuating sections, the actuating sections can each have their free end point towards the support leg. This allows a compact, small design of the actuating mechanism of the clamping spring.

[0030] In the sense of the present application, the indefinite article "a" is not to be understood as a numeral. Thus, when, for example, a component is mentioned, this is to be interpreted in the sense of "at least one component". If an angle specification is made in degrees, the angle specification relates to the dimension of a circle of 360 degrees (360°).

[0031] Therefore, the terminal block can have multiple spring-loaded clamping connectors with corresponding operating elements within an insulating housing. Each spring-loaded clamping connector can have its own busbar. However, it is also conceivable that two or more clamping springs act together with a common busbar, such that the multiple spring-loaded clamping connectors are formed by a busbar section consisting of one clamping spring and a common busbar. Attached Figure Description

[0032] The invention will now be described in detail with reference to the accompanying drawings and embodiments. The drawings show:

[0033] Figure 1 A perspective view of the wiring terminals is shown;

[0034] Figure 2 Shown in the unlocked clamping position Figure 1 Side view of the wiring terminals;

[0035] Figure 3 Shown in the locked open hold position Figure 1 Side view of the wiring terminals;

[0036] Figure 4 Shown in the unlocked clamping position Figure 2 A side sectional view of the wiring terminals;

[0037] Figure 5 A side view of a spring-loaded clamping connector with an actuating element in the unlocked clamped position is shown.

[0038] Figure 6 A side view of the clamping spring with actuating elements in the unlocked clamped position is shown;

[0039] Figure 7 A rear view of the clamping spring with actuating elements in the unlocked clamped position is shown;

[0040] Figure 8 A perspective front view of a clamping spring with an actuating element in the locked open holding position;

[0041] Figure 9 A perspective rear view of a clamping spring with an actuating element in the locked open holding position is shown.

[0042] Figure 10 A perspective front view of a spring-loaded clamping connector with an actuating element in the locked open-hold position;

[0043] Figure 11Side view of the spring force clamping connection with the actuating element in the locked open holding position, shown with section line A-A;

[0044] Figure 12 Front view of the clamping spring with the actuating element in the unlocked clamping position, shown in section A-A;

[0045] Figure 13 Front view of the spring force clamping connection with the actuating element in the locked open holding position, shown in section A-A;

[0046] Figure 14 Top view of the terminal;

[0047] Figure 15 Top view of the spring force clamping connection with the actuating element. DETAILED DESCRIPTION

[0048] Figure 1 Perspective view of the terminal 1.

[0049] The terminal 1 has an insulating material housing 2 into which a spring force clamping connection 3 is fitted. Alternatively to the embodiment shown, it is likewise conceivable for a plurality of spring force clamping connections 3 to be fitted side by side in the insulating material housing 2 in different arrangement directions.

[0050] The spring force clamping connection 3 has a clamping spring 4 and a busbar 5. The clamping spring 4 constitutes a contact section for clamping an electrical conductor wire to the busbar 5. As shown, the clamping spring can be configured as a U-bent leg spring. The clamping spring 4 has a clamping leg 6, a bearing leg 7 which bears against the busbar 5 and supports the clamping spring 4 at the busbar 5, and a spring bow 8 which connects the bearing leg 7 with the clamping leg 6.

[0051] The insulating material housing 2 has a conductor wire introduction channel 9 which opens into a conductor wire insertion opening 10 in the busbar 5 of the spring force clamping connection 3. In addition to the conductor wire introduction channel 9, an actuating channel 11 is introduced into the insulating material housing 2. An actuating element 12 is movably supported in the actuating channel 11. Exemplarily, an actuating pushbutton which is movably supported in the actuating channel 11 is shown as the actuating element 12. However, it is also conceivable for a pivotable actuating lever, an actuating element which is supported floatingly by means of a pivot push motion, etc.

[0052] On the lower side of the busbar 5, which is opposite the wire lead-in channel 9 on the diagonal, there is a wire receiving recess 13. The wire lead-in channel 9 and the wire insertion opening 10 of the busbar 5 lead into the wire receiving recess 13, wherein the centre axis of the wire lead-in channel 9 points into the wire receiving recess 13. By this, an electrical wire inserted into the wire lead-in channel 9 reaches into the wire receiving recess 13. The insulation material housing 2 has a collision ramp 14, which protrudes from the side wall into the wire receiving recess 13, for guiding the electrical wire to a triggering section 15 of a triggering leg connected with the support leg 7.

[0053] The handling channel 11 has a concave profile at the side wall facing away from the wire lead-in channel 9, so that between the handling element 12 and the delimiting wall of the concave profile there is an inspection opening 16, which leads to the spring bow 8.

[0054] It can be seen that a handling section 17 in the form of a material lug laterally protrudes from the clamping leg 6. The handling element 12 has a handling web 18, which extends partially laterally past the clamping leg 6 and the spring bow, which loads the handling section 17 with a curved end face, for example a circular-arc-shaped profile.

[0055] The handling element 12 can optionally also have a stop profile 19 at the outer wall of the handling element 12, for example as shown at the outer wall of the handling web 18. The insulation material housing 2 has a counter stop profile 20, for example in the form of an upper end wall of a lateral free space, which transitions into the handling channel 11. The stop profile 19 and the counter stop profile 20 are formed and oriented towards each other such that they form a stop, which prevents the handling element 12 from falling out of the handling channel 11.

[0056] Figure 2 A side view of the terminal 1 is shown in the unlocked clamping position. Figure 1 A side view of the terminal 1 is shown in the unlocked clamping position.

[0057] It can be seen here that the clamping leg 6, which protrudes from the spring bow 8 into the wire insertion opening 10, protrudes obliquely into the centre axis of the wire lead-in channel 9. There is a support pin 21 next to the support leg 7, at which the spring bow 8 is supported and which is between the clamping leg 6 and the support leg 7.

[0058] It is also clear that the clamping spring 4 has a trigger leg 22 which has a trigger section 15 which is oriented horizontally approximately parallel to the upper plane of the busbar 5, i.e. the plane which is unfolded by the wire insertion opening 10, which lies in the middle axis F of the wire insertion channel 9, indicated by a dashed line. A connection section 23 is bent from the trigger section 15 towards the busbar 5, so that the impact ramp 14 is positioned between the middle axis F and the connection section 23. By this, an electrical wire inserted into the wire insertion channel 9 is kept away from the connection section 23, so that an undesired premature unlocking of the clamping spring 4 is prevented.

[0059] Figure 3 a side view of the terminal 1 in the locked open position Figure 1

[0060] It is clear that the actuating element 12 is now further moved into the actuating channel 11 towards the busbar 5 and with its curved free end face of the actuating web 18 displaces the clamping leg 6 towards the support arm 7 by a pressing force on the oppositely projecting actuating section 17. By this, the clamping leg 6 is moved away from the middle axis F of the wire insertion channel 9 and releases the clamping site for clamping an electrical wire.

[0061] It is also seen here that the bearing point of the curved end face of the actuating web 18 at the actuating section 17 of the clamping leg 6 is displaced from the position at the free end of the actuating section 17 (see Figure 2 ) in the drawing towards the free end of the clamping leg 6 or towards the connection site of the actuating section 17 with the clamping leg 6. Figure 3

[0062] Figure 4 a side view of the terminal 1 in the locked open position Figure 2

[0063] At the end side of the wire insertion opening 10, a contact section 24 projects from the wire insertion opening 10 of the busbar 5 towards the wire receiving recess 13. The support leg 7 abuts at an end wall 25 at the end side opposite the contact section 24 and is supported on the upper side of the busbar 5 with a widened section which adjoins the end wall 25. A retaining leg 26 is connected on the support leg 7 which extends on the lower side of the busbar 5 opposite the spring bow 8 towards the contact section 24. The trigger leg 22 is bent from the retaining leg 26 with a bend 27 away from the busbar 5 or the clamping leg 7 with its connection section 23. In the region of the bend 27, the retaining leg 26 has a latching contour 28 which is not shown in detail in the drawing, which constitutes a latching with a latching tab 29 of the clamping leg 6 in the open retaining position, which projects for example in the bend from the plane of the clamping leg 6.

[0064] ​​​It can be seen that the clamping leg 6 has a clamping edge 30 at its free end, which in the clamped position rests against the contact section 24 without an electric conductor in between. The clamping edge 30 together with the contact section 24 forms a clamping site in order to clamp the electric conductor.

[0065] Figure 5 A side view of the spring force clamping connection 3 with the actuating element 12 is shown in the unlocked clamping position.

[0066] It is clear here that the actuating section 17 projects at the side edge of the clamping leg 6, which can be bent partially out of the plane of the clamping leg 6, wherein the actuating section 17 points with its free end towards the support leg 7. The actuating web 18 of the actuating element 12 is guided laterally past the actuating section 17 at the side edge of the clamping leg 6 in order to load said actuating section with an actuating force by means of the free end face of the actuating web. As shown, the free end face can be curved, for example with a partially circular cross-sectional profile, in order to slide at the actuating section 17.

[0067] As shown, the actuating section 17 can be oriented at an obtuse angle in the final clamping position shown without a clamped electric conductor. The obtuse angle can be oriented, for example as shown, in the range of approximately 100° to 140° and preferably 120° ± 10° relative to the movement axis V of the actuating element 12. By means of the actuating web 18, an inclined face is achieved which allows a sliding movement relative to the curved end face of the actuating web 18. By means of the inclined face which is displaced at a small angle, preferably for example an acute angle, upon actuation, a force in the force direction onto said inclined face is induced, which causes the clamping leg 6 to be effectively opened towards the support leg 7.

[0068] It is also clear that the actuating element 12 has a widened actuating head 31, from which the actuating web 18 projects towards the busbar 5. Advantageously, the actuating web 18 projects on both sides of the clamping spring 4 and loads the actuating section 17 respectively. In said advantageous embodiment, there are actuating sections 17 on both sides of the clamping leg 6 which project from the mutually opposite side edges of the clamping leg 6 in opposite directions.

[0069] The busbar 5 can be designed in such a way that the conductor insertion opening 10 is introduced at the cover plate 32 and at least on one side a side wall 33 projects in the opposite direction to the spring bow 8. The contact can achieve a bending-resistant implementation of the busbar 5 and a larger electrically conductive cross section in order to increase the current-carrying capacity and reduce the electrical resistance.

[0070] Figure 6 A side view of the clamping spring 4 with the actuating element 12 is shown in the unlocked clamping position.

[0071] It is clear that the latching tabs 29 project towards the trigger section 15 in the region between the actuating section 17 and the free end of the clamping leg 6 at which the clamping edge 30 is present. To this end, the clamping leg 6 can be bent away from the bearing leg 7, for example by means of a bend, out of the plane of the clamping leg 6 which is continued straight by means of the latching tabs 29.

[0072] The bearing leg 7 can have a laterally projecting bearing section 34 adjacent to the bend present in the transition to the holding leg 26, so that the bearing leg 7 can be wider in the region of the bearing section 34 than in the section of the clamping spring 4 which is connected to said bearing section and which is sunk into the conductor insertion opening 10, especially in the region of the bend to the holding leg 26. By this means, the bearing leg 7 can bear on the edge web which laterally delimits the conductor insertion opening 10.

[0073] Figure 7 A rear view of the clamping spring 4 with the actuating element 12 in the unlocked clamping position is shown.

[0074] It is clear that the actuating element 12 has an actuating head 31 from which two actuating webs 18 project spaced apart from and parallel to one another. The actuating webs 18 preferably project from the actuating head 31 at the lateral edge region of the actuating head 31. The actuating webs are arranged next to the clamping spring 4 so that they accommodate the clamping spring 4 between them. The actuating webs 18 are here positioned laterally next to the side edge of one section of the clamping leg 6 and, if necessary, also next to the side edge of one section of the spring bow 8. The clamping leg 6 is not covered by the actuating element 12. The actuating section 17 projects from both sides of the clamping leg 6, said actuating section being loaded by the curved free end face of the actuating webs 18.

[0075] The actuating webs 18 can be wider or thicker in the region between the free end and the stop contour 19, respectively, outwards, i.e. in the direction away from the clamping leg 6, than the section which extends from the stop contour 19 to the actuating head 31. By this means, a shoulder is achieved which projects from the adjacent plane and which forms the stop contour 19 which fixes the actuating element 12 on the insulating material housing 2.

[0076] It is also clear that the bearing leg 7 is designed more widely at least before the transition to the holding leg 26 in order to form a bearing section 34 for bearing the clamping spring 4 on the busbar 5. The transition to the holding leg 26 takes place by means of a narrower spring-elastic bend 35.

[0077] At the free end face of the actuating head 31 there can be a tool holding contour 36. As shown, said tool holding contour can be embodied as a recess or a recess cavity. For example, a slit-shaped or cross-slit-shaped recess can be envisaged.

[0078] Figure 8 Fig. 4 shows a perspective front view of the clamping spring 4 with the handling element 12 in the locked open holding position.

[0079] The latching tabs 29, which extend on both sides of the clamping leg 6 towards the holding leg 26, sink into the lateral free space of the holding leg 26, which is thus between the pair of latching tabs 29 in the locked open holding position. The holding leg 26 widens in the region of the bend 27, so that there is an end edge 37 at the transition to the widening on both sides, which forms the latching contour 28. The latching tabs 29 stop with their free end regions onto the respective end edge 37 (= latching contour 28). The clamping leg 6 is pressed by the force of the clamping spring 4 against the end edge 37, so that the clamping leg 6 is latched at the holding leg 26 in the open holding position.

[0080] Figure 9 Fig. 5 shows a perspective rear side view of the clamping spring 4 with the handling element 12 in the locked open holding position.

[0081] It can be seen that the handling web 18 is guided laterally past the section of the spring bow 8 in the transition to the clamping leg 6 or laterally past the clamping leg 6 to the handling section 17, which projects laterally from the clamping leg 6 and extends therefrom. By the curved end face of the handling web 18 and the handling section 17, which is placed obliquely thereto, the handling force of the handling element 12 acting in the movement direction V is exerted obliquely thereon with a force component directed towards the bearing leg 7, which opens the clamping leg 6 towards the bearing leg 7 into the shown open holding position.

[0082] It can also be seen that the clamping leg 6 has latching tabs 29, which are spaced apart from one another starting from the region of the handling section 17, which preferably continue in a straight direction towards the free end. In the locked open holding position, the holding leg 26 sinks between the pair of latching tabs 29. The holding leg 26 widens in the region of the bend 27, so that an end edge 37 is formed, which serves as a latching edge or latching contour 28 for the latching tabs 29.

[0083] The holding leg 26 is bent from the bearing leg 7 in the bend 35. There is a further bend 27 in the region of the latching contour 28, in which the trigger leg 22 is connected to the holding leg with the vertical section 23. The vertical section 23 transitions with a bend into the horizontal trigger section 15. The holding leg 26 and the trigger section 15 likewise essentially horizontally and approximately parallel to one another, wherein this planar parallelism is not important here.

[0084] In this regard, the connection section 23 extends substantially parallel to the movement direction and is oriented vertically in the sense. The holding arm 26 and the trigger section 15 are oriented approximately horizontally in this regard, i.e. at an angle of approximately 90°, with a tolerance of e.g. ±10°.

[0085] Figure 10 Perspective front view of the spring force clamping connection 3 with the actuating element 12 in the locked open holding position.

[0086] It can be seen that the busbar 5 has a cover plate 32 into which the conductor insertion opening 10 is introduced with a remaining edge web 38. A side wall 33 is bent from the cover plate 32 at one side, the upper edge of which forms the edge web 38.

[0087] The clamping spring 4 sinks with its support leg 7 and clamping leg 6 into the conductor insertion opening 10. The support leg 7 is supported on the cover plate 32 of the busbar 5 with its laterally protruding support section 34 (material lug).

[0088] Figure 11 Side view of the spring force clamping connection 3 with the actuating element 12 in the locked open holding position in the sectional plane A-A.

[0089] It can be seen that the actuating section 17, which protrudes laterally from the clamping leg 6, now forms an acute angle with the movement direction V of the actuating element 12. In the open holding position, the angle is preferably in the range of approximately 10° to 70°. As shown, the angle can be approximately 40° ± 20°.

[0090] Figure 12 Front view of the clamping spring 4 with the actuating element 12 and the busbar 5 in the unlocked clamping position in the sectional plane A-A.

[0091] It can be seen that the support leg 7 is supported on the cover plate 32 of the busbar 5 with its laterally protruding support section 34. It is also clear that the support leg 7 sinks with the section connected to the support section 34 into the conductor insertion opening 10 of the busbar 5 and is supported there at the end wall 25, which delimits the narrow side of the conductor insertion opening 10.

[0092] The clamping spring 4 is surrounded on both sides by the actuating web 18, wherein the clamping leg 6 remains exposed and is not covered by the actuating element 12.

[0093] Figure 13 Front view of the spring force clamping connection 3 with the actuating element 12 in the unlocked clamping position in the sectional plane A-A.

[0094] It is clear that the actuating web 18 is linearly movably supported in the actuating direction V in a guide slot in the housing 2 of insulating material and bears in the open holding position on each one of the associated actuating sections 17.

[0095] It can also be seen that latch tabs 29 project from the clamping legs on both sides, which extend towards the holding legs 26 and receive the holding legs 26 therebetween in the open holding position.

[0096] Figure 14 A top view of the terminal 1 is shown. It can be seen that the inspection opening 16, the actuating channel 11 and the conductor introduction channel 9 are arranged side by side at the upper side of the housing 2 of insulating material. The actuating channel 11 can be separated from the conductor introduction channel 9 by a partition wall.

[0097] The actuating element 12 is arranged in the actuating channel 11 and bounds the inspection opening 16 by means of a side wall which is configured as a partially circular contour in the form of a concave wall surface at a side wall section of the actuating channel 11. The side wall section is spaced apart from the conductor introduction channel 9 and faces the conductor introduction channel 9.

[0098] Figure 15 A top view of the spring force clamping connection 3 with the actuating element 12 is shown. It can be seen that the actuating element 12 partially covers the spring bow 8, so that in the transition of the clamping leg 6 to the spring bow 8 the widened actuating head 31 thereof is arranged above a part of the spring bow 8, viewed in the movement direction V.

[0099] The actuating element 12 can have metal inlays for reinforcement, in particular in the region of the actuating web 18. The actuating sections 17 at the clamping legs 6 can be said to "point back" with their exposed free end towards the support leg 7.

[0100] List of reference signs

[0101] 1 terminal

[0102] 2 housing of insulating material

[0103] 3 spring force clamping connection

[0104] 4 clamping spring

[0105] 5 busbar

[0106] 6 clamping leg

[0107] 7 support leg

[0108] 8 spring bow

[0109] 9 conductor introduction channel

[0110] 10 conductor insertion opening

[0111] 11 handling channel

[0112] 12 handling element

[0113] 13 wire receiving recess

[0114] 14 collision ramp

[0115] 15 trigger section

[0116] 16 inspection opening

[0117] 17 handling section

[0118] 18 handling web

[0119] 19 stop contour

[0120] 20 counter stop contour

[0121] 21 bearing pin

[0122] 22 trigger leg

[0123] 23 connection section

[0124] 24 contact section

[0125] 25 end wall

[0126] 26 holding leg

[0127] 27 bend

[0128] 28 latching contour

[0129] 29 latching tab

[0130] 30 clamping edge

[0131] 31 handling head

[0132] 32 cover plate

[0133] 33 side wall

[0134] 34 bearing section

[0135] 35 bend

[0136] 36 tool holding contour

[0137] 37 end edge

[0138] 38 edge web

[0139] V movement direction

Claims

1. Terminal (1) having an insulating material housing (2), a spring force clamping connection (3) for connecting electrical conductors in the insulating material housing (2) and a handling element (12), wherein the spring force clamping connection (3) has a busbar (5) and a clamping spring (4), wherein the clamping spring (4) has a clamping leg (6) with a clamping edge (30) for clamping an electrical conductor onto a contact section (24) of the busbar (5), a bearing leg (7) which bears against the busbar (5) and supports the clamping spring (4) at the busbar (5), and a spring bow (8) which connects the bearing leg (7) with the clamping leg (6), wherein the insulating material housing (2) has a handling channel (11) and a conductor introduction channel (9) which opens into the contact section (24), and wherein the handling element (12) is movably supported in the handling channel (11) and is configured for loading the clamping leg (6) with force in order to displace the clamping leg (6) against the force of the clamping spring (4) into an open holding position towards the bearing leg (7), a handling section (17) laterally projects from the clamping leg (6), and the handling element (12) extends past the side edges of the clamping leg (6) to the handling section (17) and constitutes a force loading for the handling section (17). characterized in that The handling element (12) has a handling head (31) and two handling webs (18) which project spaced apart from one another from the handling head (31), and handling sections (17) project laterally from both sides at side edges of the clamping leg (6) which face away from one another, wherein the handling webs (18) each extend past a side edge of the clamping leg (6) to the handling section (17) belonging to it.

2. The terminal (1) according to claim 1, characterized in that The handling element (12) has a stop contour (19), and the insulating material housing (2) and / or the clamping spring (4) has a counter stop contour (20), wherein the stop contour (19) and the counter stop contour (20) form a stop which fixes the handling element (12) in the handling channel (11).

3. The terminal (1) according to claim 1 or 2, characterized in that A holding leg (26) is connected on the bearing leg (7), which has a latching contour (28) which constitutes a latching of the clamping leg (6) in the open holding position which is deflected against the spring force of the clamping spring (4) towards the bearing leg (7).

4. The terminal (1) according to any one of the preceding claims, characterized in that The holding leg (26) is elastic in the region of the latching contour (28).

5. The terminal (1) according to claim 4, characterized in that The latching contour (28) is formed by a holding lug which projects from the holding leg (26) or an end edge (37) at the holding leg (26).

6. The terminal (1) according to claim 4 or 5, characterized in that ​ 7. The terminal (1) according to claim 6, characterized in that The holding leg (26) is bent away from the clamping leg (6) adjacent to the latching contour (28) and tapers from a bend (27) towards the bearing leg (7), wherein an end edge (37) forms the latching contour (28) in the transition of the side edge of the holding leg to the widened section of the bend (27) laterally projecting from the holding leg.

8. The terminal (1) according to claim 7, characterized in that The widened section of the bend (27) laterally projects at the side edges opposite one another of the tapering sections of the holding leg (26) and forms the latching contour (28) with its end edge (37) respectively.

9. The terminal (1) according to any one of claims 4 to 8, characterized in that A latching web (29) projects from the clamping leg (6) towards the holding leg (26) and is configured for latching in the open holding position at the latching contour (28).

10. The terminal (1) according to any one of claims 4 to 9, characterized in that A trigger leg (22) is connected on the holding leg (26) at the side facing away from the bearing leg (7), which extends with a trigger section (15) into the median axis of the wire lead-in channel (9) and can be deflected by insertion into the wire lead-in channel (9) for clamping to an electrical conductor on the busbar (5) and for unlocking the clamping leg (6) latched in the open holding position by unlocking the latching contour (28).

11. The terminal (1) according to claim 10, characterized in that The trigger leg (22) forms the free end of the clamping spring (4).

12. The terminal (1) according to claim 10 or 11, characterized in that The insulating material housing (2) has a collision ramp (14) for guiding an electrical conductor to the trigger section (15), wherein the collision ramp (14) is arranged between the median axis of the wire lead-in channel (9) and a connection section (23) of the trigger leg (22) extending from the holding leg (26) to the trigger section (15).

13. The terminal (1) according to any one of the preceding claims, characterized in that The busbar (5) has a wire insertion opening (10), and the clamping spring (4) projects with its bearing leg (7) and clamping leg (6) into the wire insertion opening (10).

14. The terminal (1) according to claim 13, characterized in that The clamping spring (4) is supported with its bearing leg (7) at an end wall (25) delimiting the wire insertion opening (10).

15. The terminal (1) according to claim 13 or 14, characterized in that The bearing leg (7) tapers with its section projecting into the wire insertion opening (10) and is supported on the busbar (5) by means of a bearing section (34) forming a transition of the tapering section to a wider section extending towards the spring bow (8) and laterally projecting from the tapering section.

16. The terminal (1) according to any one of claims 13 to 15, characterized in that A holding leg (26) is connected on the bearing leg (7), wherein the holding leg (26) is bent away from the clamping leg (6) below the busbar (5) on the lower side facing away from the upper side of the busbar (5) towards the spring bow (8).

17. The wiring terminal (1) according to any one of the preceding claims, characterized in that The at least one actuating section (17) points with its free end towards the bearing leg (7). The at least one actuating section (17) points with its free end towards the bearing leg (7).

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