Spring-cage terminal and conductor connection terminal

Abstract

A spring-loaded terminal connection for connecting an electrical conductor (9) by means of spring force, wherein the spring-loaded terminal connection has at least one busbar (3) and a clamping spring (4) having a clamping leg (43) with a clamping edge (46) for clamping an electrical conductor (9) at a clamping point (30) on a contact section (31) of the busbar (3), and having a holding element (5) configured to hold the clamping leg (43) in an open position, wherein the holding element (5) has a latching element (50) that is spring-loaded by the clamping leg (43) in the open position, characterized in that the holding element (5) is designed as a component separate from the clamping spring (4), wherein the holding element (5) has a counter-bearing (53) with which the holding element (5) is held and supported on a component of the spring-loaded terminal connection against the spring force of the clamping leg (43) acting on the latching element (50).wherein the counter bearing (53) is further away from the contact section (31) than the locking element (50).,

Description

[0001] The invention relates to a spring-loaded terminal connection for connecting an electrical conductor by means of spring force. The spring-loaded terminal connection comprises at least one busbar and a clamping spring having a clamping leg with a clamping edge for clamping an electrical conductor at a clamping point on a contact section of the busbar. The spring-loaded terminal connection comprises a retaining element configured to retain the clamping leg in an open position. The retaining element has a latching element spring-loaded by the clamping leg in the open position. The invention also relates to a conductor terminal having such a spring-loaded terminal connection.

[0002] Such a conductor terminal is known from DE 10 2020 119 372 A1. It is a conductor terminal with automatic connection of the electrical conductor to be clamped when it is inserted into the conductor terminal. Inserting the electrical conductor automatically releases the clamping leg of the clamping spring, which is held in an open position, thereby clamping the electrical conductor.

[0003] Based on this, it is the object of the present invention to provide a further improved spring-loaded terminal connection and a conductor connection terminal.

[0004] This object is achieved in that the holding element is designed as a component separate from the clamping spring, wherein the holding element has a counter bearing with which the holding element is held and supported on a component of the spring-force clamp connection against the spring force of the clamping leg acting on the locking element, wherein the counter bearing is further away from the contact section than the locking element.

[0005] In this way, the holding element can, for example, engage over the component of the spring-loaded clamp connection to which the holding element is held by means of the counter-bearing, in the manner of a hook or a clamp, so that the component of the spring-loaded clamp connection is arranged between the counter-bearing and the locking element. In particular, the holding element can be supported in this way not by means of a compressive force acting in the holding element, but rather a tensile force can act in the holding element from the counter-bearing. This has the advantage that the counter-bearing and the sections connecting the counter-bearing to other areas of the holding element can be of relatively delicate design and, in particular, do not have to be as solid as in an embodiment in which the holding element is supported by compressive forces.

[0006] Such a design, with a retaining element separate from the clamping spring, allows the integration of automatic connection technology into spring-loaded terminals and conductor connection terminals of various designs. In particular, proven conductor connection terminals of known designs can be upgraded with minimal effort to provide an automatic connection function, i.e., with automatic connection of the electrical conductor to be clamped.

[0007] The holding element can be arranged so as to be movable, e.g. displaceable, pivotable or deflectable in some other way, so that it can be slightly deflected by the inserted conductor in order to bring about the desired release effect of the clamping leg from the holding element. The holding element can, for example, be mounted so as to be displaceable, e.g. displaceable in a linear direction or an arcuate direction. The holding element can be mounted so as to be pivotable. In this case, the holding element can be pivoted about a fixed or variable pivot axis. In the case of a variable pivot axis, the holding element can, for example, be mounted so as to be floating and pivotable. The holding element can also be mounted so as to be movable in some other way so that it can be deflected sufficiently far to release the locking of the clamping leg on the holding element.

[0008] The spring-loaded terminal connection can have an actuating mechanism for actuating the clamping leg. This actuating mechanism allows the clamping leg to be moved into the open position when manually actuated, counter to the spring force of the clamping spring. In this open position, the clamping leg can then be held by the retaining element, particularly without further manual actuation of the actuating mechanism, so that the electrical conductor can be inserted at any time without any particular effort. For example, the clamping leg can be locked to the retaining element in the open position.

[0009] The clamping leg, together with the contact section of the busbar, can form a clamping point for clamping an electrical conductor between the clamping leg and the contact section. In the open position, at least the clamping edge of the clamping leg is pivoted away from the contact section of the busbar. The clamping leg can be pivoted, for example, between an open position in which the electrical conductor is freely movable between the clamping leg and the contact section, and a clamping position in which the clamping leg clamps the electrical conductor to the contact section.

[0010] The retaining element can, for example, act directly on the clamping leg to hold it in the open position. For example, a first locking element can be arranged on the clamping leg and a second locking element on the retaining element, with the first and second locking elements being able to be locked together in the open position. The first locking element can be designed as a locking projection or locking hook. The second locking element can be designed as a locking edge or locking opening.

[0011] The holding element is available as a separate component, which is attached, for example, to an insulating housing of a conductor connection terminal, to the busbar or to another component.

[0012] According to an advantageous embodiment of the invention, the spring-loaded terminal connection has a release element with a release section, the actuation of which allows the holding element to be deflected to such an extent that the clamping leg held on the holding element releases from the holding element. For example, the clamping leg held on the holding element in the open position can be released from the holding element when an electrical conductor to be clamped exerts an actuating force on the release section of the release element. This allows automatic release of the clamping leg from the holding element by inserting the electrical conductor. The release section can be subjected to pressure by a separate tool, a component of the conductor connection terminal, such as an actuating element, or directly via the inserted electrical conductor itself, thereby causing the clamping leg to be released from the holding element.By means of the release element, the clamping leg, which is held in the open position on the retaining element, can be released from the retaining element by applying pressure to the release section in the direction of the conductor insertion of the electrical conductor to be connected. Depending on the design of the spring-loaded terminal connection, the release element can be designed as a separate component or as part of the clamping spring or retaining element, e.g., as a release element formed integrally with the clamping spring or retaining element.

[0013] According to an advantageous embodiment of the invention, the locking element is arranged between the counterbearing or the support point of the counterbearing and the release section. This allows for a compact and small-sized implementation of the automatic connection function in a conductor connection terminal and thus ensures good integration. The locking element can, for example, be arranged closer to the central region of the release section than the counterbearing or the support point of the counterbearing.

[0014] According to an advantageous embodiment of the invention, the counter bearing is mounted on the busbar, in particular on a frame part of the busbar. This enables reliable support of the retaining element without subjecting the insulating housing of a conductor terminal to these forces.

[0015] According to an advantageous embodiment of the invention, the holding element has a main body, from which at least one locking arm protrudes, on which at least one locking element is arranged, and from which at least one counter-bearing arm protrudes, on which at least one counter-bearing is arranged. With such a construction, the holding element can, for example, engage over a certain part of the spring-force clamp connection, i.e. this part of the spring-force clamp connection can be received between the locking arm and the counter-bearing arm. For example, the locking arm and the counter-bearing arm can protrude from the main body essentially in the same direction, with the locking arm and the counter-bearing arm branching off from one another, such that a certain distance is formed between the free ends of the locking arm and the counter-bearing arm.

[0016] According to an advantageous embodiment of the invention, the at least one locking arm and the at least one counter-bearing arm extend away from the main body in a spreading direction. The at least one locking arm and the at least one counter-bearing arm can thus point essentially in the same direction at their free ends, e.g., toward the conductor insertion opening.

[0017] According to an advantageous embodiment of the invention, the at least one locking arm and the at least one counter-bearing arm are shaped like a clamp. "Clamp-like" means that a type of clamp is formed that can engage over certain sections of the spring-loaded terminal connection on both sides.

[0018] The counter bearing arm and / or the counter bearing can be shaped like a hook, which allows the counter bearing to be securely hooked onto the corresponding component of the spring clamp connection.

[0019] According to an advantageous embodiment of the invention, the counter bearing is mounted on a suspension point, which simultaneously forms a rotation axis of the holding element during the deflection movement of the holding element by the release element. This allows for a pivotable suspension of the holding element, which in turn enables easy release of the locking of the clamping leg by a pivoting movement of the holding element.

[0020] According to an advantageous embodiment of the invention, the release element is part of the component or assembly of the spring-loaded clamp connection which has the retaining element. This allows the design and assembly effort for the spring-loaded clamp connection to be kept to a minimum. In particular, only one component or assembly needs to be assembled to assemble the release element and the retaining element. For example, the release element can be formed integrally with the retaining element. The component or assembly can be made of plastic or metal, or of a combination of such materials. For example, the assembly with the retaining element and the release element can be formed as a pedal-like component.

[0021] According to an advantageous embodiment of the invention, the retaining element is arranged behind the clamping point or behind the majority of the busbar in the conductor insertion direction of the electrical conductor into the spring-loaded terminal connection. In this way, the retaining element does not impede the insertion of the electrical conductor. For example, in the open position, i.e., when the clamping leg is locked to the retaining element, the retaining element may not protrude into a conductor receiving space, or may protrude only slightly relative to the clamping leg, when viewed in the conductor insertion direction.

[0022] According to an advantageous embodiment of the invention, the clamping spring has a support section connected to the clamping leg via a spring arch, wherein the support section is designed to support the clamping spring on the busbar, in particular on the frame part. The support section allows for secure support of the clamping spring and sufficient support against the spring force exerted by the clamping leg.

[0023] According to an advantageous embodiment of the invention, the busbar has a frame part in which the clamping spring is suspended, clamped or received in some other way, wherein the frame part has a through-opening through which the electrical conductor to be connected can be inserted. For example, the clamping spring can be suspended with its support section on an edge section of the frame part surrounding the through-opening. The clamping spring can be clamped in the frame part in such a way that the support section is fastened to the frame part and the clamping leg is aligned towards the contact section of the busbar, i.e. in the clamped position without an inserted electrical conductor it rests against the contact section or, with an inserted electrical conductor, the clamping leg presses the electrical conductor against the contact section.

[0024] The frame part can be formed in one piece from the material of the busbar, e.g. as a region bent and punched out from the contact section. The frame part can have a circumferential frame that completely surrounds the through-opening. For example, the through-opening can have a substantially rectangular cross-section. In this case, the frame part can have a first side leg protruding from the contact section on one side and a second side leg protruding on the opposite side, wherein the first and second side legs can extend parallel to one another. The frame part can further have a cross leg that connects the free ends of the first and second side legs to one another. The clamping spring can then be suspended from the cross leg by means of the support section.

[0025] According to an advantageous embodiment of the invention, at least a portion of the retaining element protrudes into the through-opening of the frame part. This allows for a compact design of the spring-loaded terminal connection and a good integration of the automatic connection function.

[0026] According to an advantageous embodiment of the invention, the counterbearing is supported on a section of the frame part of the busbar, on the opposite side of which the support section of the clamping spring is supported. The counterbearing and the support section thus encompass this section of the frame part on opposite sides. In the locked, open position of the clamping leg, a force equilibrium can essentially exist between the forces exerted by the counterbearing and the support section on the section of the frame part.

[0027] According to an advantageous embodiment of the invention, the spring-loaded terminal connection has a pivoting operating lever that can be manually operated by the user to actuate the clamping spring into the open position. This allows for simple and convenient manual operation of the spring-loaded terminal connection. Furthermore, such an operating lever can be easily integrated into the design of a conductor terminal.

[0028] According to an advantageous embodiment of the invention, the actuating lever is U-shaped as viewed in the conductor insertion direction, with an electrical conductor being insertable through an interior space of the U-shape. This allows for a particularly compact design of the spring-loaded terminal connection such that large forces can be transmitted with the actuating lever, yet requires only a negligible amount of additional space. This is achieved in particular by using the interior space of the U-shape to accommodate the electrical conductor to be connected.

[0029] For example, the operating lever can have a manual operating area, e.g. in the form of a lever handle, from which the operating lever extends around the arrangement of clamping spring and busbar via two side cheeks that protrude, e.g. parallel, from the manual operating area. If the spring-loaded terminal connection is arranged in an insulating housing of a conductor connection terminal, the side cheeks can be located inside the insulating housing. A spring driver can be arranged on each of the side cheeks on an inner side, i.e. on the side facing the clamping spring, which spring driver can be formed integrally on the respective side cheek, for example. By means of such a spring driver, the clamping spring can be actuated and correspondingly pivoted into the open position either directly on the clamping leg or on respective operating sections assigned to the spring drivers, which protrude laterally beyond the clamping leg.

[0030] According to an advantageous embodiment of the invention, the actuating lever has at least one spring driver arranged laterally of the clamping spring and configured to deflect the clamping leg. At least one such spring driver allows the clamping leg to be reliably deflected into the open position upon appropriate pivoting of the actuating lever. The actuating lever or the spring driver can be mounted, for example, on the contact section of the busbar.

[0031] According to an advantageous embodiment of the invention, the spring driver has a pin with a circular or partially circular circumference and a V-shaped cutout, with the clamping leg extending into the V-shaped cutout with an actuating portion. This enables reliable force transmission from the actuating lever to the clamping spring.

[0032] According to an advantageous embodiment of the invention, the release element is resiliently mounted by at least one spring element, wherein the release element is actuated by the electrical conductor being inserted, counter to the spring force of the spring element. This ensures that the release element does not inadvertently release the locking mechanism between the clamping leg and the retaining element, e.g., due to vibrations of the conductor connection terminal, because the additional spring force of the spring element must first be overcome. The spring element required for the resilient mounting can be attached to the release element or formed integrally with it.

[0033] The aforementioned object is also achieved by a conductor connection terminal with an insulating housing having at least one conductor insertion opening for receiving an electrical conductor in a conductor insertion direction, wherein at least one spring-loaded terminal of the type described above is arranged in the insulating housing. This also allows the previously described advantages to be realized. The electrical conductor can be inserted through the conductor insertion opening in the conductor insertion direction up to the clamping point between the clamping edge of the clamping leg and the contact section of the busbar, where it can be clamped.

[0034] According to an advantageous embodiment of the invention, a conductor guide channel for guiding the electrical conductor to be clamped to the contact section can be formed in the insulating material housing, wherein the release section of the release element is arranged in the conductor guide channel or at least projects into the conductor guide channel.

[0035] According to an advantageous embodiment of the invention, the release section of the release element can be arranged behind the contact section or at least behind the clamping point in the conductor insertion direction.

[0036] For the purposes of the present invention, the indefinite term "a" is not to be understood as a numerical term. Therefore, if, for example, a component is mentioned, this is to be interpreted as "at least one component." Angles expressed in degrees refer to a circle of 360 degrees (360°).

[0037] The invention is explained in more detail below using exemplary embodiments and drawings.

[0038] It shows Fig. 1 a conductor connection terminal in perspective view, Fig. 2 a side sectional view of the conductor connection terminal according to Fig. 1 in the unactuated state, Fig. 3 the conductor connection terminal according to Fig. 2 in the actuated state of the operating lever, Fig. 4 the conductor connection terminal according to Fig. 2 in the unactuated state with the electrical conductor plugged in, Fig. 5 a combined holding-release element in perspective view, Fig. 6 an operating lever in perspective view, Fig. 7 the operating lever according to Fig. 6 in lateral sectional view.

[0039] The Fig. 1 shows a conductor terminal 1 with an insulating housing 2. In the illustrated embodiment, the conductor terminal 1 is designed as a two-pole conductor terminal. Accordingly, the conductor terminal 1 has two conductor insertion openings 20 in the insulating housing 2, through each of which an electrical conductor to be connected can be inserted. Two spring-loaded terminal connections are arranged in the insulating housing 2, with each spring-loaded terminal connection being assigned to a conductor insertion opening 20. The conductor terminal 1 has a pivotable actuating lever 6 for actuating the clamping spring of each spring-loaded terminal connection.

[0040] The Fig. 2 shows a side sectional view of the conductor connection terminal 1 according to Fig. 1. It can be seen that the spring-loaded terminal connection arranged in the insulating housing 2 has a clamping spring 4 and a busbar 3, which preferably electrically connects the spring-loaded terminal connections. The busbar 3 has a contact section 31 and a frame part 32 bent at an angle from the contact section 31. The contact section 31 serves to electrically contact a connected electrical conductor. The clamping spring 4 has a support section 41 that is attached to the frame part 32. The support section 41 can, in particular, be suspended from a transverse leg 33 of the frame part 32 that is arranged remote from the contact section 31. The clamping spring 4 has a spring arch 42 adjoining the support section 41 and a clamping leg 43 adjoining the spring arch 42, which serves to clamp an electrical conductor to the contact section 31, specifically at a clamping point 30.The clamping leg 43 ends at the free end with a clamping edge 46.

[0041] To actuate the clamping spring 4, ie to deflect the clamping leg 43 from the Fig. 2 into an open position, the actuating lever 6 is provided. The actuating lever 6 has a manual actuating area 60 that protrudes from the insulating housing 2. At the manual actuating area 60, the actuating lever 6 can be gripped and pivoted by the user. The actuating lever 6 extends into the insulating housing 2 via side cheeks 65. A spring actuating section 61 with a spring driver 62 is arranged on each of the side cheeks 65. When the actuating lever 6 is pivoted, the clamping leg 43 is pivoted in a direction away from the contact section 31 via the spring driver 62 and transferred into the open position, as can be seen in Fig. 3. If the actuating element 6 is positioned opposite the Fig. 1, the clamping leg 43 is deflected upward by the spring drivers 62, so that the clamping edge 46 is lifted from the contact section 31 and moved away. In this way, the clamping point can be opened so that a clamped electrical conductor can be removed or an electrical conductor to be clamped can be easily inserted. In this open position, the clamping leg 43 can be locked to a holding element 5.

[0042] As can be seen, a holding element 5 is arranged in the insulating housing 2, which serves to hold the clamping leg 43 in the open position. The holding element 5 has a locking element 50, to which the clamping leg 43 can be locked with a locking element, which in this case is formed by the clamping edge 46. However, it is also possible for a separate locking element to be formed on the clamping leg 43. Furthermore, the holding element 5 has a counter-bearing 53, with which the holding element 5 is suspended from the frame part 32, in particular from a transverse leg 33, and is thus supported against the spring force of the clamping leg 43 acting on the locking element 50.

[0043] In the Fig. 3, the actuating lever 6 is pivoted into the open position. Via the spring driver 62, the clamping leg 43 is now moved into the open position, in which the clamping leg 43 can engage with the clamping edge 46 behind the locking element 50. If the actuating lever 6 is now moved back into the closed position, as in Fig. 2 and Fig. 4, the clamping leg 43 remains in the open position since it is held by the holding element 5.

[0044] The holding element 5 extends in the conductor insertion direction L further to the release element 8, which merges into a section that is angled relative to the holding element 5 and forms the release section 80 of the release element 8. If an electrical conductor is inserted in the conductor insertion direction L into the insulating material housing 2 through the conductor insertion opening 20, pressing the end of the electrical conductor against the release section 80 causes the entire assembly comprising the release element 8 and the holding element 5 to pivot about a rotation axis that is formed by the support of the counter bearing 53 on the upper frame section 33, as the Fig. 4. As a result, the locking element 50 located further down is pivoted and thus released from the clamping leg 43. Accordingly, the clamping leg 43 can rebound and press the electrical conductor 9 against the contact section 31. The clamping leg 43 thus moves into the clamping position due to the spring preload of the clamping spring 4.

[0045] As can also be seen, a spring element 81 is arranged on the release element 8 or the holding element 5, which can, for example, be formed integrally from the material of the release element 8 or the holding element 5. The spring element 81 is supported on a part of the insulating housing 2 and causes a restoring moment of the assembly consisting of the release element 8 and the holding element 5 in the clockwise direction.

[0046] As the Fig. 4 shows, when the release section 80 is actuated, the spring element 81 springs in slightly.

[0047] The Fig. 5 shows the assembly comprising the holding element 5 and the release element 8. The assembly can be designed, for example, as a sheet metal part, which is produced, for example, in a punching and bending process. The holding element 5 has a main body 51, from which a counter-bearing arm 52 protrudes on the left and right ends, at the free end of which a counter-bearing 53 is formed, e.g., in the shape of a hook. Furthermore, holding arms 54 protrude from the main body 51, each adjacent to a counter-bearing arm. The holding arms 54 each have a locking element 50 at their free end for locking with the clamping leg.

[0048] The main body 51 merges into the release element 8 on the side facing away from the locking arms 54 and the counter-bearing arms 52. A spring element 81 is formed integrally from the release element 8 or the main body 51 and extends toward the side facing away from the release section 80, e.g., as a spring-loaded tab. The release element 8 then merges into the release section 80, which is angled relative to the main body 51.

[0049] The Fig. 6 and Fig. 7 show an operating lever 6 with further details. It can be seen that the operating lever 6 has side cheeks 65 projecting substantially at right angles from the manual operating area 60 on opposite sides. The side cheeks 65 extend longitudinally beyond the manual operating area 60. In this area, the side cheeks 65 are not connected to one another, i.e., a free space 66 is present there.

[0050] A locking element 67 can be arranged on the manual actuation area 60, which serves to lock the actuation lever 6 in the closed lever position. With the locking element 67, the actuation lever can be locked, for example, to a corresponding locking section of the insulating housing 2. Furthermore, the actuation lever 6 can have a manual actuation aid 69 on the end facing the conductor insertion side, which serves to make it easier to grip the actuation lever in the closed position or to actuate it with a tool.

[0051] A bearing section 68 is formed on each of the side cheeks 65 on the mutually facing inner sides, which extends into the interior of the insulating housing 2. The spring actuating sections 61 with the spring drivers 62 are arranged on the bearing sections 68 on the mutually facing inner sides. The spring drivers 62 are designed in a partially circular manner with a V-shaped cutout 63 on the circumference. It can also be seen that the spring actuating sections 61 with the spring drivers 62 do not directly adjoin the respectively assigned side cheeks 65 in the transverse direction, but rather a gap-like intermediate space 64 is formed between them. An inner wall of the insulating housing 2, for example, can be received in the gap-like intermediate space 64, which contributes to improving the guidance of the actuating lever 6 during a pivoting movement. The actuating lever 6 can be pivoted about a rotation axis D. List of reference symbols: 1 conductor connection terminal 2 insulating housings 3 busbar 4 clamping spring 5 Holding element 6 operating levers 8 Release element 9 electrical conductor 20 conductor entry opening 21 rear housing wall 30 terminal point 31 Contact section 32 frame part 33 cross legs 41 support section 42 spring bows 43 clamping legs 46 clamping edge 50 locking element 51 main body 52 Counter bearing arm 53 Counter bearing 54 locking arm 60 manual operating range 61 Spring actuation section 62 spring drivers 63 V-shaped neckline 64 gap-like space 65 sidewall 66 open space 67 Locking element 68 storage section 69 manual operating aid 80 release section 81 spring element L Conductor insertion direction D axis of rotation QUOTES CONTAINED IN THE DESCRIPTION

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

[0000] DE 10 2020 119 372 A1

[0002]

Claims

[1] Spring-loaded terminal connection for connecting an electrical conductor (9) by means of spring force, wherein the spring-loaded terminal connection has at least one busbar (3) and a clamping spring (4) which has a clamping leg (43) with a clamping edge (46) for clamping an electrical conductor (9) at a clamping point (30) on a contact section (31) of the busbar (3), and with a holding element (5) which is designed to hold the clamping leg (43) in an open position, wherein the holding element (5) has a locking element (50) which is spring-loaded by the clamping leg (43) in the open position, characterized bythat the holding element (5) is designed as a component separate from the clamping spring (4), wherein the holding element (5) has a counter-bearing (53) with which the holding element (5) is held and supported on a component of the spring-force clamping connection against the spring force of the clamping leg (43) acting on the locking element (50), wherein the counter-bearing (53) is further away from the contact section (31) than the locking element (50). [2] Spring clamp connection according to claim 1, characterized by that the spring-loaded clamp connection has a release element (8) with a release section (80), by the actuation of which the holding element (5) can be deflected to such an extent that the clamping leg (43) held on the holding element (5) is released from the holding element (5). [3] Spring clamp connection according to claim 2, characterized bythat the clamping leg (43) held on the holding element (5) in the open position can be released from the holding element (5) when an electrical conductor (9) to be clamped exerts an actuating force on the release section (80) of the release element (8). [4] Spring clamp connection according to claim 2 or 3, characterized by that the locking element (50) is arranged between the counter bearing (53) or the support point of the counter bearing (53) and the release section (80). [5] Spring clamp connection according to one of the preceding claims, characterized by that the counter bearing (53) is mounted on the busbar (3), in particular on a frame part (32) of the busbar (3). [6] Spring clamp connection according to one of the preceding claims, characterized bythat the holding element (5) has a main body (51) from which at least one locking arm (54) projects, on which at least one locking element (50) is arranged, and from which at least one counter-bearing arm (52) projects, on which at least one counter-bearing (53) is arranged. [7] Spring clamp connection according to claim 6, characterized by that the at least one locking arm (54) and the at least one counter-bearing arm (52) extend away from the main body (51) in a spreading direction. [8] Spring clamp connection according to claim 6 or 7, characterized by that the at least one locking arm (54) and the at least one counter-bearing arm (52) are shaped like a clamp. [9] Spring clamp connection according to one of the preceding claims, characterized by that the counter bearing (53) is mounted on a suspension point which at the same time forms an axis of rotation of the holding element (5) during the deflection movement of the holding element (5) by the release element (8). [10] Spring clamp connection according to one of the preceding claims, characterized by that the release element (8) is part of the component or assembly of the spring-loaded terminal connection which has the holding element (5). [11] Spring clamp connection according to claim 10, characterized by that the assembly with the holding element (5) and the release element (8) is formed as a pedal-like component. [12] Spring clamp connection according to one of the preceding claims, characterized by that the holding element (5) is arranged in the conductor insertion direction (L) of the electrical conductor (9) into the spring-loaded terminal connection behind the clamping point (30) or behind the predominant part of the busbar (3). [13] Spring clamp connection according to one of the preceding claims, characterized bythat the busbar (3) has a frame part (32) in which the clamping spring (4) is suspended, clamped or received in some other way, wherein the frame part (32) has a through-opening through which the electrical conductor (9) to be connected can be inserted. [14] Spring clamp connection according to claim 13, characterized by that at least a portion of the holding element (5) projects into the through opening of the frame part (32). [15] Spring clamp connection according to one of claims 13 to 14, characterized by that the counter bearing (53) is supported on a section of the frame part (32) of the busbar (3), on the opposite side of which the support section (41) of the clamping spring (4) is supported. [16] Spring clamp connection according to one of the preceding claims, characterized bythat the spring-loaded clamp connection has a pivotable actuating lever (6) that can be manually actuated by the user for actuating the clamping spring (4) into the open position. [17] Spring clamp connection according to claim 16, characterized by that the actuating lever (6) is U-shaped when viewed in the conductor insertion direction, wherein an electrical conductor (9) can be inserted through an interior space of the U-shape. [18] Spring clamp connection according to one of claims 16 to 17, characterized by that the actuating lever (6) has at least one spring driver (62) which is arranged laterally of the clamping spring (4) and is designed to deflect the clamping leg (43). [19] Spring clamp connection according to claim 18, characterized bythat the spring driver (62) has a pin which is circular or partially circular in circumference and has a V-shaped cutout (63), wherein the clamping leg (43) projects into the V-shaped cutout (63) with an actuating section. [20] Spring clamp connection according to one of the preceding claims, characterized by that the clamping spring (4) has a support section (41) which is connected to the clamping leg (43) via a spring arch (42), wherein the support section (41) is designed to support the clamping spring (4) on the busbar (3), in particular on the frame part (32). [21] Conductor connection terminal (1) with an insulating housing (2) which has at least one conductor insertion opening (20) for receiving an electrical conductor (9) in a conductor insertion direction (L), characterized by that at least one spring-loaded terminal connection according to one of the preceding claims is arranged in the insulating housing (2).

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