conductor connection terminal

Abstract

Conductor terminal (1) with at least one spring-loaded clamping connection having a contact frame (3) configured for the insertion of an electrical conductor (9) in a conductor insertion direction (L), wherein the contact frame (3) a) has at least one first leaf spring (41) which is designed to clamp an electrical conductor (9) to a counter bearing of the conductor terminal (1), or b) has at least one first leaf spring (41) and a second leaf spring (42) opposite the first leaf spring (41), wherein the electrical conductor (9) can be clamped between the first and the second leaf spring (41, 42), characterized in that the conductor terminal (1) has a retaining element (5) by which the spring force clamping connection can be locked in an open position in which the first leaf spring (41) and, if present, the second leaf spring (42) are in a more deflected state compared to a clamping position, in which the distance between a free end of the first leaf spring (41) and the counter bearing or, if a second leaf spring (42) is present, the distance between the free ends of the first and the second leaf spring (41, 42) is increased compared to the clamping position.

Description

[0001] The invention relates to a conductor terminal with at least one spring-loaded clamping connection, which has a contact frame designed for the insertion of an electrical conductor in a conductor insertion direction, wherein the contact frame a) has at least one first leaf spring designed to clamp an electrical conductor to a counter bearing of the conductor terminal, or b) has at least one first leaf spring and a second leaf spring opposite the first leaf spring, wherein the electrical conductor can be clamped between the first and second leaf springs.

[0002] Such a conductor connection terminal is known, for example, from EP 2 846 408 B2.

[0003] The invention is based on the objective of further improving such a conductor connection terminal.

[0004] This problem is solved in a conductor terminal of the type mentioned above by providing a retaining element that locks the spring-loaded clamping connection in an open position. In this open position, the first leaf spring and, if present, the second leaf spring are deflected to a greater extent than in a clamping position. Specifically, the distance between a free end of the first leaf spring and the counter bearing, or, if a second leaf spring is present, the distance between the free ends of the first and second leaf springs, is increased compared to the clamping position. The conductor terminal has the advantage that the retaining element allows the spring-loaded clamping connection to be held in the open position for extended periods without requiring continuous manual operation.Rather, the retaining element ensures that the spring-loaded clamping connection remains in the open position even without manual operation. In the open position, an electrical conductor can be inserted effortlessly into the clamping point, which is located between the first leaf spring and the counter bearing, or, if a second leaf spring is present, between the first and second leaf springs. In the clamped position, an electrical conductor can be clamped at the clamping point by the first leaf spring and, if present, the second leaf spring. In this way, a conductor connection terminal of the aforementioned known type can be easily upgraded to include automatic connection of the electrical conductor. The process of clamping the electrical conductor is simplified and accelerated.

[0005] The first leaf spring, and optionally the second leaf spring, can be designed as a flat, essentially planar, or at most slightly curved sheet metal element extending from a root region of the leaf spring, where it is attached, to a free end. Such a leaf spring can, in particular, be designed without a spring bow.

[0006] The terminal block can be designed, for example, as a solderable terminal block on a printed circuit board (PCB). Alternatively, it can be surface-mounted (SMD) or soldered to the PCB. In this case, the terminal block can be an SMD terminal block (Surface Mount Device). The terminal block can also be soldered into through-holes in the PCB. For this purpose, the contact frame can have one or more electrical contact elements, such as contact pins and / or SMD contacts.

[0007] According to an advantageous embodiment of the invention, the contact frame is designed as a sheet metal part comprising a base section and, on opposite longitudinal sides of the base section extending in the conductor insertion direction, a side section bent at an angle relative to the base section, wherein the base section and the side sections form a U-shape in cross-section. Additionally, a top wall opposite the base section may be present, extending transversely from one side section towards the other. In this way, the contact frame, and thus the entire conductor terminal, can be manufactured relatively easily and cost-effectively.

[0008] For example, the entire contact frame, including the first leaf spring and, if applicable, the second leaf spring or the counter bearing, can be formed as a single-piece assembly that can be manufactured from a sheet metal part using a stamping and bending process.

[0009] According to an advantageous embodiment of the invention, the first leaf spring projects obliquely from a side wall towards the conductor insertion direction, either towards the counter bearing or towards the second leaf spring, and is freestanding relative to the base section. If a second leaf spring is present, it can project obliquely from the other side wall towards the conductor insertion direction, also towards the first leaf spring, and be freestanding relative to the base section. This freestanding position allows each leaf spring to move freely at its free end and is only fixed to the contact frame at its associated side wall. The oblique orientation of each leaf spring relative to the conductor insertion direction ensures that an electrical conductor can be clamped with sufficient spring force by the first leaf spring and, if applicable, the second leaf spring.

[0010] If only the first leaf spring is present, the counter bearing can, for example, be designed as a section of a side section of the contact frame opposite the first leaf spring. The first leaf spring and / or the second leaf spring can extend from the side wall connected to them in the conductor insertion direction or in the opposite direction.

[0011] According to an advantageous embodiment of the invention, the retaining element has an open-holding section which, in the locked open position, is located in a space between the first leaf spring and the counter bearing or in a space between the first leaf spring and the second leaf spring. This section blocks the rebound of the deflected and pre-tensioned first leaf spring and, if present, the deflected and pre-tensioned second leaf spring. In the open position, the retaining element, with its open-holding section, thus prevents the rebound of the deflected and pre-tensioned first leaf spring and, if applicable, the deflected and pre-tensioned second leaf spring. This provides a highly efficient open-holding mechanism for the spring-clamp connection, which is also simple and very cost-effective to manufacture.

[0012] According to an advantageous embodiment of the invention, the retaining element is designed as a pivotable rocker element, which is pivotably mounted on a part of the conductor terminal block about a pivot axis, similar to a rigid rocker. In this way, the retaining element can be movably mounted using a simple mechanism. The movable mounting has the advantage that the retaining element, with its open-holding section, can be easily moved away from the first leaf spring and the second leaf spring to release the locking mechanism in the open position.

[0013] Alternatively, the retaining element can be movable in a different way; for example, it can be mounted so that it can slide in the direction of the conductor insertion. It is also possible for the retaining element to be mounted in a combination of pivoting and sliding motion.

[0014] According to an advantageous embodiment of the invention, the retaining element has at least one bearing section with which it is pivotably mounted on the contact frame, particularly on the base section. This allows for secure mounting of the retaining element, whereby the forces occurring during actuation of the retaining element are absorbed by the contact frame and thus kept away from the insulating housing of the conductor terminal. The bearing section of the retaining element can have a projecting bearing pin. The bearing receptacle on the contact frame can be designed as a recess or through-hole and configured to receive the bearing pin.

[0015] According to an advantageous embodiment of the invention, the pivot axis of the retaining element is essentially parallel to the base section. In this way, the retaining element can perform a tilting movement relative to the conductor insertion direction. According to another advantageous embodiment, the pivot axis of the retaining element can be essentially orthogonal to the conductor insertion direction.

[0016] According to an advantageous embodiment of the invention, the retaining element has a release section which, when the electrical conductor is inserted into the terminal block in the direction of entry, can be actuated by the conductor with an actuating force, thereby allowing the retaining element to be displaced and the locking of the spring-loaded terminal block in the open position to be automatically released. This has the advantage that an automatic release function for the locked open position can be implemented with minimal effort, which can be easily triggered by inserting the electrical conductor into the terminal block.

[0017] By moving the holding element using the actuating force applied by the electrical conductor, the holding section can be moved from its position between the first leaf spring and the counter bearing or the second leaf spring, so that the first leaf spring and, if applicable, the second leaf spring can spring back.

[0018] The release section can be designed as a separate component connected to the retaining element. In an advantageous embodiment, the release section can be integrally formed with the retaining element. The retaining element can be, for example, a sheet metal component or a plastic component.

[0019] According to an advantageous embodiment of the invention, the retaining element, designed as a pivotable rocker element, can be pivoted by applying the actuating force to the release section via the electrical conductor. In this way, the pivoting movement of the rocker element moves the holding section away from the first leaf spring and, if applicable, the second leaf spring.

[0020] If the retaining element is movably mounted in a different way than by the aforementioned pivoting mounting, e.g. a sliding mounting, the retaining element can be moved in the conductor insertion direction by applying the actuating force through the electrical conductor to the release section.

[0021] According to an advantageous embodiment of the invention, the conductor terminal has a manual actuating element, in particular an actuating push button, by which the spring-loaded clamping connection can be adjusted into the open position by manual actuation. This has the advantage that the spring-loaded clamping connection can be easily moved into the open position by the user. In particular, no separate actuating tool is required for this purpose, since the conductor terminal has its own actuating element. In one embodiment of the invention, the manual actuating element can be configured to move the spring-loaded clamping connection into the open position by directly applying mechanical force to the first leaf spring and, if present, the second leaf spring.

[0022] According to an advantageous embodiment of the invention, the manual actuating element is configured to move the spring-loaded clamping connection into the open position by indirectly actuating the first leaf spring and, if present, the second leaf spring via the retaining element. Thus, the spring-loaded clamping connection is moved into the open position by indirectly acting upon the first and, if present, the second leaf spring, as the actuating element mechanically acts upon the retaining element, and the retaining element directly acts upon the first leaf spring and, if present, the second leaf spring.

[0023] If indirect actuation of the first leaf spring and, if present, the second leaf spring via the retaining element is provided, a simple mechanism to prevent the retaining element from falling out can be implemented. Accordingly, the retaining element does not need to be fixed in the conductor terminal in a complex manner and can therefore be easily installed. The manual actuating element prevents the retaining element from falling out.

[0024] In an advantageous embodiment, the conductor terminal can have an insulating housing that completely or predominantly surrounds the spring-clamp connection and thus insulates it from the environment. In another advantageous embodiment, the manual actuating element can be integrally formed with the insulating housing, for example, as an actuating arm projecting from a region of the insulating housing, which, in the region of a freely movable end, can act on the spring-clamp connection or on the retaining element like an actuating push button.

[0025] According to an advantageous embodiment of the invention, at least one actuating tab is formed on the first leaf spring and, if present, on the second leaf spring. This tab is arranged obliquely relative to the actuating movement of the manual actuating element and projects from a lateral edge of the respective leaf spring facing the manual actuating element. This allows for simple and reliable mechanical deflection of the first leaf spring and, if present, the second leaf spring. The actuating tab of the first leaf spring can form a funnel shape with the counter bearing. If a first leaf spring and a second leaf spring, each with its own actuating tab, are present, these actuating tabs can form a funnel shape so that, during actuation, they receive a section of the manual actuating element or the retaining element between the actuating tabs, thereby forcing the leaf springs apart.

[0026] According to an advantageous embodiment of the invention, the conductor terminal has at least one travel limiting element that limits the maximum pivoting movement of the retaining element when the spring-clamp terminal is moved into the open position. This ensures that the retaining element cannot be actuated or displaced too far. In particular, this prevents the necessary clearance between the first leaf spring and the counter bearing, or between the first leaf spring and the second leaf spring, from being blocked by excessive actuating or displacement of the retaining element. Accordingly, the travel limiting element is designed to limit the maximum pivoting movement of the retaining element such that, in the open position, the retaining element provides sufficient clearance for the insertion of the electrical conductor between the first leaf spring and the counter bearing, or between the first leaf spring and the second leaf spring.The first leaf spring and the second leaf spring are kept free.

[0027] According to an advantageous embodiment of the invention, the at least one travel limiting element is designed as an edge of the retaining element pointing towards the free end of the first leaf spring and, if present, towards the free end of the second leaf spring, which, in the open position, can be applied to the free end of the first leaf spring and, if present, the second leaf spring. In this way, the first leaf spring or the second leaf spring forms a stop for the travel limiting element designed as an edge of the retaining element, so that the travel limiting element cannot be actuated excessively.

[0028] According to an advantageous embodiment of the invention, the at least one travel limiting element is designed as an edge on the contact frame and / or on an insulating housing of the conductor terminal, by which the maximum actuation travel of the manual actuating element is limited. In this way, the travel limiting element can either directly limit the maximum pivot travel of the holding element or the maximum actuating movement of the manual actuating element, thus indirectly limiting the pivot travel of the holding element.

[0029] It is also possible to provide several path boundary elements, which could be, for example, a combination of the variants explained above.

[0030] The retaining element can have a main body that extends essentially longitudinally in the direction of conductor insertion. The release section can project from the main body in the opposite direction of conductor insertion. The release section can be located at the end of the main body opposite the release section and can be angled essentially orthogonally to the main body. Furthermore, the retaining element can have angled side walls on one or both opposite sides of the main body. The aforementioned bearing pins can, for example, project from these side walls. Such side walls can easily stiffen the entire retaining element, thereby providing sufficient bending stiffness for its function as a rocker element.Furthermore, an angled tab can project from each side wall on the side adjacent to the release section, which engages behind the release section in the conductor insertion direction and thus contributes to an additional stiffening of the release section on the retaining element.

[0031] For the purposes of the present invention, the indefinite term "a" is not to be understood as a numeral. Therefore, when, for example, a component is mentioned, this is to be interpreted as "at least one component". Where angles are specified in degrees, these refer to a circle of 360 degrees (360°).

[0032] The invention is explained in more detail below with reference to exemplary embodiments and the accompanying drawings. These show... Fig. 1. A contact frame in perspective view, Fig. 2 the contact frame according to Fig. 1 in top view, Fig. 3 the conductor connection terminal according to Fig. 1 with a retaining element, Fig. 4 the conductor connection terminal according to Fig. 3 in the open position, Fig. 5 a holding element in perspective view, Fig. 6 a conductor terminal block in lateral sectional view in the open position, Fig. 7 the conductor connection terminal according to Fig. 6 with electrical conductor inserted in the clamping position.

[0033] The Fig. 1 and Fig. Figure 2 shows a contact frame 3 for a spring-clamp connection of a conductor terminal 1. The contact frame 3 can be made from a flat sheet metal part and formed into the illustrated shape by means of a stamping-bending process. The conductor terminal 1, or the contact frame 3, is designed for the insertion of an electrical conductor in a conductor insertion direction L. The contact frame 3 has a base section 30. Side sections 31 and 32 are formed on opposite longitudinal sides or edges of the base section 30. The side sections 31 and 32 are angled relative to and bent away from the base section 30. The side sections 31 and 32 run essentially parallel to each other in the conductor insertion direction L.

[0034] A first leaf spring 41 projects from side section 31. A second leaf spring 42 projects from side section 32. The first and second leaf springs 41, 42 are slightly inclined relative to the conductor entry direction L and converge towards each other at their free ends. The leaf springs 41, 42 are free-floating relative to the base section 30, allowing them to move freely. Each leaf spring 41, 42 terminates at its free end with a clamping edge 46. An electrical conductor can be clamped between the clamping edges 46.

[0035] The leaf springs 41, 42 each have an actuating tab 43, which can project, for example, from the side edge of the respective leaf spring 41, 42 facing away from the base section 30. The actuating tabs 43 are positioned obliquely to each other and obliquely to the respective leaf spring 41, 42, so that the actuating tabs 43 form a funnel shape.

[0036] The conductor terminal 1 can, for example, be designed for soldering or soldering onto a printed circuit board. For this purpose, the conductor terminal 1 has solder contacts 34, which can, for example, be formed integrally with the base section 30. Bearing receptacles 33 are also formed on the base section 30, for example, in the form of recesses in the base section 30. The bearing receptacles 33 serve to receive bearing sections of a retaining element, as will be explained below.

[0037] The Fig. Figure 3 shows the conductor connection terminal 1 with a contact frame 3 according to the Fig. 1 and Fig. 2, wherein a retaining element 5 is added. The retaining element 5 has a main body 51, from which an open section 50 projects towards the leaf springs 41, 42. Bearing sections 53 of the retaining element 5 are also connected to the main body 51 and are each supported on the bearing receptacles 33 on the base section 30 of the contact frame 3. This secures the retaining element 5 to the contact frame 3 and also allows it to pivot on it. It can also be seen that the retaining element 5 has a release section 8 that projects from the main body 51 at an angle, e.g., such that the release section 8 extends approximately orthogonally to the main body 51 and thus to the conductor entry direction L.

[0038] In the Fig. 1, Fig. 2 to Fig. Figure 3 shows the spring-loaded clamping connection in the clamping position. In this clamping position, the leaf springs 41, 42 are not deflected, so they are either completely relaxed or bear against each other with a certain tension in the area of ​​their free ends when no electrical conductor is clamped.

[0039] The Fig. Figure 4 shows the conductor connection terminal 1 according to Fig. 3 in the open position. It can be seen that the retaining element 5 has been pivoted clockwise by a certain angle as shown. During the pivoting process, the retaining element 5 comes into contact with an actuating tab 43 on opposite sides with the open-holding section 50, whereby the actuating tabs 43, and thus the leaf springs 41, 42 connected to them, are deflected by the open-holding section 50, such that the leaf springs 41, 42 are moved apart because the open-holding section 50 is pressed between the actuating tabs 43 and the leaf springs 41, 42. The leaf springs 41, 42 are finally in the open position, in which the clamping edges 46 are spaced far enough apart that an electrical conductor can be inserted between them without force.

[0040] The retaining element 5 has edge edges arranged laterally on both sides of the open-holding section 50, facing the leaf springs 41, 42. These edge edges form travel limiting elements 52, which limit the maximum pivoting angle of the retaining element 5. This can be seen in the Fig. 4, that the retaining element 5 with its travel limiting elements 52 rests against the free end of the respective leaf spring 41, 42 or against the respective actuating tab 43, i.e. has reached a mechanical stop by which further pivoting is prevented.

[0041] In the Fig. In the open position shown in Figure 4, the spring-loaded clamp connection is held in this open position by the retaining element 5 without requiring any further actuating force to be exerted on the retaining element 5. The retaining element 5 is clamped between the leaf springs 41, 42 with its open-holding section 50 and held there by their spring force. If an electrical conductor is now inserted into the conductor connection terminal 1 in the conductor insertion direction L, the retaining element 5 can be returned to the open position by exerting an actuating force through the electrical conductor on the release section 8. Fig. The leaf springs 41 and 42 are pivoted to the position shown in Figure 3. This releases the locking mechanism in the open position, allowing the leaf springs 41 and 42 to spring back and clamp the electrical conductor arranged between them by means of the clamping edges 46.

[0042] The Fig. Figure 5 shows the retaining element 5 as a single component. It can be seen that the retaining element 5 can be box-shaped, with a side wall 54 bent from each of the opposite edges of the main body 51, extending essentially orthogonally to the main body 51. A bearing section 53 projects from each side wall 54. The release section 8 is located on the side of the main body 51 facing away from the open section 50. The side walls 54 can, for example, have retaining tabs 55 projecting in the area of ​​the release section 8 and bent at an angle around it, thereby additionally holding the release section 8 and thus securing it against unwanted bending.

[0043] The conductor connection terminal 1 described so far can be designed without an insulating housing, as shown. The conductor connection terminal 1 can also be designed with an insulating housing, as shown below. Fig. 6 and Fig. 7 is explained.

[0044] The Fig. 6 and Fig. Figure 7 shows a conductor terminal 1, which, in addition to the elements described so far, also has an insulating housing 2 that at least largely surrounds the spring-clamp terminal, with the solder contacts 34 provided for connection to the printed circuit board being accessible from the outside. The insulating housing 2 has a conductor entry opening 20 through which an electrical conductor 9 can be inserted in the conductor entry direction L. The conductor terminal 1 also has a manual actuating element 6 with which the spring-clamp terminal can be moved into the open position by manual actuation, in particular into the open position in which the spring-clamp terminal is locked by the retaining element 5.

[0045] The manual actuating element 6 can, for example, be integrally formed with the insulating housing 2, for example, by connecting the manual actuating element 6 to a housing rear wall 21 of the insulating housing 2 via an actuating arm 22. The housing rear wall 21 can be the side of the insulating housing 2 facing away from the conductor entry opening 20. The actuating arm 22 can be laterally freed from the adjacent material of the insulating housing 2, so that the actuating arm 22 with the actuating element 6 is movable relative to the surrounding insulating housing 2, at least in the area of ​​its free end.

[0046] The actuating element 6 allows the leaf springs 41, 42 to be spread apart directly by applying pressure force to the actuating tabs 43.

[0047] The Fig. 6 and Fig. Figure 7 shows a version of the conductor terminal 1 in which the leaf springs 41, 42 are actuated indirectly via the actuating element 6. An actuating force is transmitted via the actuating element 6 to the main body 51 of the retaining element 5, and the leaf springs 41, 42 are moved into the open position via the main body 51 or the projecting open-holding section 50 in the manner already described. By applying pressure to the actuating element 6, the retaining element 5 is simultaneously moved into the position described in the Fig. 6 shown open position or starting position.

[0048] The Fig. Figure 6 shows the conductor connection terminal 1 as the Fig. 4 in the open position. If an actuating force F is now exerted on the release section 8 by an electrical conductor 9, this leads to a pivoting of the retaining element 5 counterclockwise into the position shown. Fig.Position 7 shown. This clamps the electrical conductor 9 between the clamping edges 46 of the leaf springs 41, 42.

[0049] In another embodiment, the conductor terminal 1 can also, for example, only have the first leaf spring 41. The side wall 32 can serve as a counter bearing for clamping the electrical conductor; this side wall can then be extended in the conductor insertion direction L, so that the electrical conductor can be clamped between this side wall 32, which acts as a counter bearing, and the clamping edge 46 of the first leaf spring 41. Otherwise, the functionality of the conductor terminal 1 and, in particular, the retaining element 5, can be designed in the same way as described above. Reference symbol list 1 conductor connection terminal 2 insulating housings 3 contact frames 5 retaining element 6 manual actuating element 8 Solution section 9 electrical conductors 20 conductor entry openings 21 Rear panel 22 Actuating arm 30 floor section Section 31 Section 32 33 Bearing intake 34 solder contacts 41 first leaf spring 42 second leaf spring 43 Actuating tab 46 clamping edge 50 Open section 51 Main body 52 Path boundary element 53 Storage section 54 side wall 55 retaining tab Actuating force F L conductor entry direction QUOTES INCLUDED IN THE DESCRIPTION

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

[0000] EP 2 846 408 B2

[0002]

Claims

A conductor terminal (1) with at least one spring-loaded clamping connection, which has a contact frame (3) configured for the insertion of an electrical conductor (9) in a conductor insertion direction (L), wherein the contact frame (3) a) has at least one first leaf spring (41) configured for clamping an electrical conductor (9) against a counter bearing of the conductor terminal (1), or b) has at least one first leaf spring (41) and a second leaf spring (42) opposite the first leaf spring (41), wherein the electrical conductor (9) can be clamped between the first and the second leaf spring (41, 42), characterized in that the conductor terminal (1) has a retaining element (5) by which the spring-loaded clamping connection can be locked in an open position in which the first leaf spring (41) and, if present, the second leaf spring (42) are in a more deflected state compared to a clamping position.in which the distance between a free end of the first leaf spring (41) and the counter bearing or, if a second leaf spring (42) is present, the distance between the free ends of the first and the second leaf spring (41, 42) is increased compared to the clamping position. Conductor terminal according to claim 1, characterized in that the contact frame (3) is designed as a sheet metal part which has a bottom section (30) and on opposite longitudinal sides of the bottom section (30) extending in the conductor insertion direction (L) each a side section (31, 32) bent at an angle relative to the bottom section (30), wherein the bottom section (30) with the side sections (31, 32) forms a U-shape in cross-section. Conductor terminal according to claim 2, characterized in that the first leaf spring (41) projects obliquely from a side wall (31) towards the conductor insertion direction (L) in the direction of the counter bearing or the second leaf spring (42) and is freed from the bottom section (30). Conductor terminal according to one of the preceding claims, characterized in that the retaining element (5) has an open-holding section (50) which, in the locked open position, is arranged in an intermediate space between the first leaf spring (41) and the counter bearing or in an intermediate space between the first leaf spring (41) and the second leaf spring (42) and thereby blocks a springback of the pre-tensioned first leaf spring (41) and, if present, of the pre-tensioned second leaf spring (42). Conductor terminal according to one of the preceding claims, characterized in that the retaining element (5) is designed as a pivotable rocker element which is pivotably mounted on a part of the conductor terminal (1) in the manner of a rigid rocker about a pivot axis. Conductor terminal according to claim 5, characterized in that the retaining element (5) has at least one bearing section (53) with which the retaining element (5) is pivotably mounted on the contact frame (3), in particular on the bottom section (30). Conductor terminal according to one of claims 5 to 6, characterized in that the pivot axis of the retaining element (5) runs essentially parallel to the bottom section (30). Conductor terminal according to one of claims 5 to 7, characterized in that the pivot axis of the retaining element (5) is essentially orthogonal to the conductor insertion direction (L). Conductor terminal according to one of the preceding claims, characterized in that the retaining element (5) has a release section (8) which, when the electrical conductor (9) is inserted into the conductor terminal (1) in the conductor insertion direction (L), can be actuated by the electrical conductor (9) with an actuating force (F) and thereby the retaining element (5) can be displaced, whereby the locking of the spring-loaded clamp connection in the open position can be automatically released. Conductor terminal according to claim 9, characterized in that the retaining element (5) designed as a pivotable rocker element can be pivoted by applying the actuating force (F) through the electrical conductor (9) to the release section (8). Conductor terminal according to one of the preceding claims, characterized in that the conductor terminal (1) has a manual actuating element (6), in particular an actuating push button, by which the spring force clamp connection can be set into the open position by means of manual actuation. Conductor terminal according to claim 11, characterized in that the manual actuating element (6) is configured to place the spring force clamp connection into the open position by indirect actuating the first leaf spring (41) and, if present, the second leaf spring (42) via the retaining element (5). Conductor terminal according to one of claims 11 to 12, characterized in that at least one actuating tab (43) arranged obliquely relative to the actuating movement of the manual actuating element (6) is formed on the first leaf spring (41) and, if present, on the second leaf spring (42), which projects from a side edge of the respective leaf spring (41, 42) facing the manual actuating element (6). Conductor terminal according to one of the preceding claims, characterized in that the conductor terminal (1) has at least one travel limiting element (52) by which the maximum pivoting movement of the retaining element (5) is limited when the spring force clamp connection is moved into the open position. Conductor terminal according to claim 14, characterized in that the at least one travel limiting element (52) is designed as an edge of the retaining element (5) pointing towards the free end of the first leaf spring (41) and, if present, towards the free end of the second leaf spring (42), which in the open position can be applied to the free end of the first leaf spring (41) and, if present, the second leaf spring (42). Conductor terminal according to one of claims 14, characterized in that the at least one travel limiting element is formed as an edge on the contact frame (3) and / or on an insulating housing (2) of the conductor terminal (1), by which the maximum actuation travel of the manual actuating element (6) is limited.

Images