Spring-cage terminal and conductor connection terminal

Abstract

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) to a contact section (31) of the busbar (3), and having a holding element (5) designed to hold the clamping leg (43) in an open position, wherein the spring-loaded terminal connection has at least one actuating element (7) for transferring the clamping leg (43) into the open position by manually actuating the actuating element (7), characterized in that the actuating element (7) is designed as a combined push-pull actuating element having at least one push section (72) and one pull section (74),wherein a pressure actuation force applied by the user to a manual actuation surface (70) of the actuating element (7) is transmitted as a pressure force in the pressure section (72), is deflected into a tensile force at a connection point (73) of the tension section (74) with the pressure section (72), and is transmitted as a tensile force to the clamping leg (43) in the tension section (74).

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 to a contact section of the busbar. The spring-loaded terminal connection also comprises a holding element configured to hold the clamping leg in an open position. The spring-loaded terminal connection comprises at least one actuating element for transferring the clamping leg into the open position by manually actuating the actuating element. 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 actuating element is designed as a combined push-pull actuating element which has at least one push section and one pull section, wherein a push-actuating force applied by the user to a manual actuating surface of the actuating element is transmitted as a push force in the push section, is deflected into a pull force at a connection point between the pull section and the push section, and is transmitted as a pull force to the clamping leg in the pull section. As a result, a spring-loaded terminal connection which is relatively short in design transverse to the conductor insertion direction can be realized and which can be actuated effectively and ergonomically by such a combined push-pull actuating element. In this way, a conductor connection terminal with an automatic connection of the electrical conductor to be clamped can be improved in terms of size while maintaining good operability and reliability.

[0005] The actuating element can have a pressure section or, for example, two parallel pressure sections. The actuating element can have a tension section or, for example, two parallel tension sections. If two tension sections are present, they can be connected to the clamping leg on opposite edges of the clamping leg.

[0006] The actuating element 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, allowing the electrical conductor to be inserted at any time without any particular effort.

[0007] 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.

[0008] 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, wherein the first and second locking elements can be locked together in the open position. The retaining element can be designed as a projecting locking arm on which the second locking element is arranged. The first locking element can be designed as a locking projection or locking hook.

[0009] The second locking element can be designed as a locking edge or locking opening.

[0010] In an advantageous embodiment, which is also considered an independent invention in combination with the spring-loaded terminal connection described above, the first locking element arranged on the clamping leg can be formed by the clamping edge itself or by another area of the free end of the clamping leg. A first locking element formed in this way can then be locked with a second locking element formed on the holding element to hold the clamping leg in the open position.

[0011] According to an advantageous embodiment of the invention, the tension section is arranged at an acute angle to the compression section. This allows for a space-saving arrangement of the actuating element on the clamping spring while simultaneously ensuring efficient force transmission. The angle between the tension section and the compression section can, for example, be in the range of 20 degrees to 80 degrees.

[0012] According to an advantageous embodiment of the invention, the push section is longer than the pull section. This allows ergonomic actuation of the actuating element at an easily accessible location on the outside of a conductor terminal. In particular, direct manual actuation can be performed without additional tools.

[0013] According to an advantageous embodiment of the invention, the compression section and the tension section are formed as sheet metal parts, in particular formed integrally from a single sheet metal component. By designing them as sheet metal parts, the compression section and the tension section can be realized with relatively small dimensions, in particular with a small sheet thickness, so that they can be easily integrated into a conductor terminal without requiring any significant additional space. Advantageously, the compression section and the tension section can be formed integrally from one and the same sheet metal component, which allows for simple and cost-effective production.

[0014] The actuating element, which is designed as a metallic component with the pressure section and the tension section, can have an actuating cap made of insulating material at a free end of the pressure section, where the actuating force is introduced, to ensure the required insulation from the outside. The actuating cap can have the manual actuating surface of the actuating element. The actuating cap can be plugged onto the pressure section or molded onto it.

[0015] According to an advantageous embodiment of the invention, the tension section extends in the manner of a tension arm from a connection point on the pressure section to a coupling point on the clamping leg. The connection point at which the tension section is connected to the pressure section can be arranged remotely from the point on the pressure section at which the actuating force is introduced, e.g., near the opposite end of the pressure section. At the coupling point, the tension section can be coupled to the clamping leg, e.g., via a positive connection.

[0016] According to an advantageous embodiment of the invention, the clamping spring has a support section that is connected to the clamping leg via a spring arc of the clamping spring. The support section is designed to support the clamping spring on the busbar or another component of a conductor terminal. The support section allows for secure support of the clamping spring and sufficient support against the spring force exerted by the clamping leg.

[0017] According to an advantageous embodiment of the invention, the pressure section is arranged behind the support section of the clamping spring, as seen from the clamping leg. The pressure section is thus located outside the area surrounded by the clamping spring, so that it does not interfere with the movements of the clamping spring.

[0018] According to an advantageous embodiment of the invention, the pressure section extends parallel to the support section over at least a portion of the support section and / or rests against the support section. For example, during manual actuation, the pressure section can slide along the support section of the clamping spring and thus be guided along this support section. The tension section, in contrast, extends at an oblique angle from one end of the pressure section to the connection point on the clamping leg.

[0019] According to an advantageous embodiment of the invention, the pressure section, viewed from the manual actuation surface, transitions behind the connection point to the tension section into a bearing section of the actuation element, via which the actuation element is supported and / or guided against the tensile force of the tension section, in particular on a support contour of an insulating housing. This reliably supports the manual actuation element and guides it during a pressure actuation. Furthermore, the tension arm can also be guided and / or supported via a support contour of the insulating housing, e.g., by sliding along the support contour during manual actuation.

[0020] The holding element can be present 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.

[0021] According to an advantageous embodiment of the invention, the retaining element is formed integrally from the material of the clamping spring. This has the advantage that the retaining element can be produced directly during the bending process of the clamping spring. Separate assembly of the retaining element is thus unnecessary.

[0022] According to an advantageous embodiment of the invention, it is provided that the at least one tension section has at least one second form-locking element, with which the at least one tension section can be positively coupled to at least one first form-locking element, which is formed on the clamping leg as a counterpart to the second form-locking element. By connecting the first form-locking element to the second form-locking element, a positive coupling of the at least one tension section to the clamping leg can be realized at a fixed coupling point. For example, the first form-locking element can be designed as a projecting pin and the second form-locking element as a pin receptacle for receiving the pin. The assignment can also be reversed, however. The at least one tension section can, for example,It can be articulated to the clamping leg at the fixed coupling point, so that it can be pivoted relative to the clamping leg at least to a certain extent via this articulated coupling. The at least one tension section can also be rigidly coupled to the clamping leg at the fixed coupling point.

[0023] The tensile section can be formed into a hook or eyelet shape at its end facing the clamping leg for fastening purposes in order to be hooked onto the first form-locking element on the clamping leg.

[0024] According to an advantageous embodiment of the invention, the spring-loaded terminal connection has a release element with a release section, by means of which 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. 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 held on the holding element in the open position can be released from the holding element by applying pressure to the release section in the conductor insertion direction (L) of the electrical conductor to be connected.Depending on the design of the spring-loaded terminal connection, the release element can be designed as part of the clamping spring, e.g. as a release element formed integrally with the clamping spring, or as a separate component.

[0025] According to an advantageous embodiment of the invention, the retaining element is arranged on the support section, on the release element, or on a section of the clamping spring connecting the release section to the support section. The retaining element can, in particular, be formed integrally with the support section, the release element, or on a section of the clamping spring connecting the release section to the support section. This eliminates the need for an additional separate component. This reduces the manufacturing and assembly effort required for the spring-loaded clamp connection.

[0026] According to an advantageous embodiment of the invention, the busbar has a slot-shaped opening through which the clamping spring or at least its clamping leg protrudes. This is conducive to secure clamping of an electrical conductor to the busbar. For example, the contact section can be designed as a contact tongue cut free from the material of the busbar and bent, e.g. a contact tongue bent away from the surface of the busbar. The electrical conductor to be clamped can then also be guided through the slot-shaped opening so that it is securely held therein. The slot-shaped opening can be completely or predominantly surrounded on its circumference by the material of the busbar.

[0027] According to an advantageous embodiment of the invention, the clamping spring is supported by its support section on the busbar, in particular on an inner side of the slot-shaped opening. This allows for secure support of the clamping spring with support on both sides, thus keeping the forces of the clamping spring away from the insulating housing of a conductor terminal. For example, both the support section and the clamping leg can protrude through the slot-shaped opening.

[0028] In a further independent aspect, the invention relates to a spring-loaded terminal connection for connecting an electrical conductor by means of spring force, wherein the spring-loaded terminal connection has at least one busbar and a clamping spring, which has a clamping leg with a clamping edge for clamping an electrical conductor to a contact section of the busbar, wherein the spring-loaded terminal connection has at least one actuating element for transferring the clamping leg into the open position by manually actuating the actuating element, wherein the actuating element is designed as a combined push-pull actuating element which has at least one push section and one pull section, wherein a push-actuating force applied by the user to a manual actuating surface of the actuating element is transmitted as a push force in the push section,At a point where the tension section is connected to the compression section, the force is deflected into a tensile force and transferred to the clamping leg in the tension section. This also allows the previously explained advantages to be realized. This invention can be advantageously combined with the previously explained embodiments of the invention.

[0029] 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 (L), wherein at least one spring-loaded clamp connection 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.

[0030] According to an advantageous embodiment of the invention, the insulating housing has a support contour along which the at least one tension element slides upon manual actuation of the actuating element. The load on the support contour can be kept low because the compressive force in the compression section is largely converted into a tensile force in the tension section, and only comparatively low supporting forces occur at the support contour.

[0031] 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.

[0032] 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 (L).

[0033] According to an advantageous embodiment of the invention, the insulating housing has a receiving channel for accommodating and supporting the actuating element. This allows the actuating element to be reliably guided through the material of the insulating housing. Jamming and tilting during actuation are avoided.

[0034] 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°).

[0035] The invention is explained in more detail below using exemplary embodiments and drawings.

[0036] It shows Fig. 1 a clamping spring in the relaxed state and an actuating element in side view, Fig. 2 the order pursuant to Fig. 1 in perspective view with an electrical conductor and with the clamping leg in the open position, Fig. 3 the order pursuant to Fig. 1 in a different perspective view, Fig. 4 a conductor connection terminal in side view in the clamping position, Fig. 5 the conductor connection terminal according to Fig. 4 in the open position, Fig. 6 shows a further embodiment of a conductor connection terminal in the clamping position, Fig. 7 the conductor connection terminal according to Fig. 6 in the open position, Fig. 8 a clamping spring with an actuating element and an electrical conductor in perspective view.

[0037] The Fig. 1 to 3, has a clamping leg 43, a spring arch 42 adjoining the clamping leg 43, and a support section 41 adjoining the spring arch 42. Furthermore, a holding element 5 is provided, which is formed integrally with the clamping spring 4, in particular with a region 40 of the support section 41, which has a reduced width than the region of the support section 41 adjoining the spring arch 42. The holding element 5 serves to hold the clamping leg 43 in the open position, as in Fig. 2 is recognizable.

[0038] Furthermore, a release element 8 is provided, which is also formed integrally with the clamping spring 4, e.g., as a material section that adjoins the holding element 5. The release element 8 has a release section 80 at its free end, through which the clamping leg 43, held in the open position on the holding element 5, can be released from the holding element 5 when an electrical conductor to be clamped exerts an actuating force on the release section 80.

[0039] A clamping tongue 45 is bent towards the free end of the clamping leg 43. The clamping tongue 45 terminates at its free end with a clamping edge 46, which serves to clamp the electrical conductor. The clamping tongue 45 can be formed from the material of the clamping leg 43 and bent in a direction away from the support section 41. At the free end of the clamping tongue 45 is a first locking element 47. The first locking element 47 is designed for locking coupling with second locking elements 50 of the holding element 5. The locking takes place in the open position, as shown in Fig. 2 is recognizable.

[0040] First form-locking elements 44 can be formed on the clamping leg 43, e.g., in the form of laterally projecting projections, lateral indentations, and / or other recesses. The first form-locking elements 44 serve for attaching second form-locking elements 76 of an actuating element 7, which are designed as counterparts.

[0041] Furthermore, an actuating element 7 can be seen, which serves to actuate the clamping spring 4, i.e. to transfer the clamping leg 43 into the open position by manually actuating the actuating element 7. The actuating element 7 has a metal part formed from sheet metal, which has a pressure section 42, a bearing section 75 and at least one tension section 74. The tension section 74 is connected to the pressure section 72 at a connection point 73. The tension section 74 extends from the connection point 73 to a second form-locking element 76 formed at the free end, e.g. a hook-shaped form-locking element, which is fastened to a first form-locking element 44 of the clamping leg 43.

[0042] The pressure section 72 extends on the rear side of the support section 41 of the clamping spring 4 and, in this embodiment, is slidably mounted thereon. Attached to the upper free end of the pressure section 72 is an actuating cap 71 formed from insulating material, which has a manual actuating surface 70 for manual actuation by the user.

[0043] As the Fig. As illustrated in Figure 2, a tension section 74 can branch off from the centrally arranged pressure section 72 on each side at the connection point 73. These tension sections 74 are then also connected symmetrically, i.e., on both sides, to a first form-locking element 44 on the clamping leg 43. This allows symmetrical actuation of the clamping leg 43.

[0044] As the Fig. As also illustrated in Figures 1 to 3, in this embodiment, the second locking element 50 is formed at the end of a hook-shaped contour of the holding element 5. The first locking element 47, designed as a counterpart, is formed at the free end of the clamping leg 43 or the clamping tongue 45 and can, for example, be formed directly by the clamping edge 46 or adjacent areas at the free end of the clamping tongue 45.

[0045] If the release section 80 is subjected to a force by the electrical conductor 9, the clamping spring is deflected slightly downwards in the region of the holding element 5 and the region 40 of the support section 41, whereby the locking between the first locking element 47 and the second locking element 50 can be released.

[0046] The Fig. 3 shows the spring clamp connection according to Fig. 2 in a direction of view to the back.

[0047] The Fig. 4 shows a conductor terminal 1 in clamping position with an insulating housing 2 in which an arrangement according to Fig. 1 to 3, additionally supplemented by a busbar 3. The insulating housing 2 has a conductor insertion opening 20 into which an electrical conductor can be inserted in a conductor insertion direction L and clamped at a clamping point formed between the clamping leg 43 or the clamping edge 46 and a contact section 31 on the busbar 3.

[0048] The busbar 3 can have an angled shape with a main section 30 in which a slot-shaped opening 32 is formed. A contact section 31 of the busbar 3 can be flared and bent from the main section 30, e.g., bent in the direction of the release section 80. The clamping spring 4 is supported with its support section 41 on the one hand on the surface of the main section 30 facing away from the contact section 31 and is additionally supported with a rear side of the region 40 on the inside of the slot-shaped opening 32. As can be seen, both the narrower region 40 of the support section 41 and the clamping leg 43 protrude through the slot-shaped opening 32.

[0049] The insulating housing 2 further has a receiving channel 21 in which the first actuating element 7 is guided in a displacement direction during manual actuation. Fig. 4 shows, the actuating head 71 is guided in the receiving channel 21, i.e. the area with a larger cross-sectional area. The pressure section 72 is guided, particularly in the area running parallel to the support section 41, in a very narrow channel in the insulating housing 2 and is supported and guided by a wall section 22 of the insulating housing 2. In the lower area, i.e. in the area of the bearing section 75, the insulating housing 2 has a cavity 23 into which the bearing section 75 can extend upon manual actuation of the actuating element 7. The pulling section 74 can slide along a support contour 24, which is formed from the material of the insulating housing 2, as the Fig. 5 illustrates this.

[0050] In the Fig. 4, the clamping leg 43 is in its clamping position. If no electrical conductor is inserted, the clamping leg 43 can, for example, rest against the contact section 31 or at least be in close proximity.

[0051] The Fig. Figure 5 shows the conductor terminal 1 in the actuated state, in which the clamping leg 43 is moved into the open position by manual actuation of the actuating element 7. For this purpose, the user can exert a manual actuating force on an actuating surface 70 of the actuating element 7, whereby the actuating element 7 is displaced downwards in the receiving channel 21. This pulls the pulling sections 74 to the left. Fig. 5 also shows that after the clamping spring has been moved into the open position, an electrical conductor 9 can be placed at the clamping point between the contact section 31 and the clamping tongue 45.

[0052] In the open position, the first locking element 47 engages with the second locking elements 50, so that the clamping leg 43 is held in the open position by the holding element 5, even if no further actuating force is exerted on the first actuating element 7. The first actuating element 7 now visually indicates to the user, through its position further down in the receiving channel 21, that the conductor connection terminal 1 is in the open position. In the open position, an electrical conductor 9 can be positioned at the clamping point without any effort.

[0053] If the electrical conductor 9 is now to be clamped in the spring-loaded terminal connection by spring force, the electrical conductor 9 simply needs to be pressed against the release section 80. This deflects the release section 80 slightly downward, releasing the locking between the first locking element 47 and the second locking elements 50, and the clamping leg 43 is thus released from the holding element 5. Due to its spring force, the clamping leg 43 then springs with the clamping edge 46 against the electrical conductor 9 and clamps it firmly to the contact section 31.

[0054] The Fig. 6 and Fig. 7 show a further embodiment of a conductor connection terminal 1, which is designed in the same way as the previously described embodiment with regard to the actuating element 7. Fig. 6, Fig. 7, however, the locking of the clamping leg 43 in the open position is not realized by a first locking element 47 arranged at the free end of the clamping leg 43, but by at least one first locking element 47 designed in the form of a flared tab, which is arranged significantly away from the clamping edge 46. The first locking element 47 can in turn lock with a second locking element 50 designed as a locking opening, which is formed on the holding element 5, and thus hold the clamping leg 43 in the open position.

[0055] A first locking element 47 in the form of a flared and bent tab can be formed on the left and right edges of the clamping leg 43 or the clamping tongue 45. However, it can also be formed, as shown in the Fig. 8, only one essentially centrally arranged first locking element 47 may be present, which can be locked with an associated second locking element 50.

[0056] The holding arrangement according to Fig. 8 (locking opening in the middle of the holding section) can also be used in the embodiment according to the Fig. 6 and Fig. 7 can be used. List of reference symbols 1 conductor connection terminal 2 insulating housings 3 busbar 4 clamping spring 5 Holding element 7 Actuating element 8 Release element 9 electrical conductor 10 insert springs 11 second actuating element 20 conductor entry opening 21 recording channels 22 wall section 23 Cavity 24 Support contour 30 Main section 31 Contact section 40 Area of the support section 41 support section 42 spring bows 43 clamping legs 44 first form-locking element 45 clamping tongue 46 clamping edge 47 first locking element 50 second locking element 60 coupling section 61 stiffening bead 62 connecting section 63 second form-locking element 70 operating area 71 Actuating cap 72 Print section 73 liaison point 74 train section 75 storage section 76 second form-locking element 80 release section L Conductor insertion direction 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) to 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 spring-loaded terminal connection has at least one actuating element (7) for transferring the clamping leg (43) into the open position by manually actuating the actuating element (7), characterized byin that the actuating element (7) is designed as a combined push-pull actuating element which has at least one push section (72) and one pull section (74), wherein a push-actuating force applied by the user to a manual actuating surface (70) of the actuating element (7) is transmitted as a push force in the push section (72), is deflected into a pull force at a connection point (73) of the pull section (74) with the push section (72) and is transmitted as a pull force to the clamping leg (43) in the pull section (74). [2] Spring clamp connection according to claim 1, characterized by that the pulling section (74) is arranged at an acute angle to the pushing section (72). [3] Spring clamp connection according to one of the preceding claims, characterized by that the compression section (72) is longer than the tension section (74). [4] Spring clamp connection according to one of the preceding claims, characterized bythat the pressure section (72) and the tension section (74) are designed as sheet metal parts, in particular are formed integrally from a sheet metal component. [5] Spring clamp connection according to one of the preceding claims, characterized by that the pulling section (74) extends in the manner of a pulling arm from a connection point (73) on the pressure section (72) to a coupling point on the clamping leg (43). [6] 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) of the clamping spring (4), wherein the support section (41) is designed to support the clamping spring (4) on the busbar (3) or another component of a conductor connection terminal (1). [7] Spring clamp connection according to claim 6, characterized bythat the pressure section (72) is arranged behind the support section (41) of the clamping spring (4) as seen from the clamping leg (43). [8] Spring clamp connection according to one of claims 6 to 7, characterized by that the pressure section (72) extends over at least a partial section of the support section (41) parallel to the latter and / or bears against the support section (41). [9] Spring clamp connection according to one of the preceding claims, characterized by that, viewed from the manual actuating surface (70), the pressure section (72) merges behind the connection point (73) to the pulling section (74) into a bearing section (75) of the actuating element (7), via which the actuating element (7) is supported and / or guided against the tensile force of the pulling section (74), in particular on a supporting contour (24) of an insulating housing (2). [10] Spring clamp connection according to one of the preceding claims, characterized bythat the clamping spring (4) has a spring arch (42) adjoining the clamping leg (43), wherein the pressure section (72) projects beyond the spring arch (42) when viewed from the clamping edge (46). [11] Spring clamp connection according to one of the preceding claims, characterized by that the spring-loaded terminal connection has a release element (8) with a release section (80) by means of which the clamping leg (43) held in the open position on the holding element (5) 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). [12] Spring clamp connection according to one of claims 9 to 10, characterized by that the holding element (5) is arranged on the support section (41), on the release element (8) or on a section of the clamping spring (4) connecting the release section (80) to the support section (41). [13] 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) to a contact section (31) of the busbar (3), wherein the spring-loaded terminal connection has at least one actuating element (7) for transferring the clamping leg (43) into the open position by manually actuating the actuating element (7), characterized byin that the actuating element (7) is designed as a combined push-pull actuating element which has at least one push section (72) and one pull section (74), wherein a push-actuating force applied by the user to a manual actuating surface (70) of the actuating element (7) is transmitted as a push force in the push section (72), is deflected into a pull force at a connection point (73) of the pull section (74) with the push section (72) and is transmitted as a pull force to the clamping leg (43) in the pull section (74). [14] 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). [15] Conductor terminal according to claim 14, characterized bythat the insulating housing (2) has a receiving channel (21) for receiving and supporting the actuating element (7). [16] Conductor terminal according to claim 14 or 15, characterized by that the insulating housing (2) has a supporting contour (24) along which the at least one pulling element (74) slides upon manual actuation of the actuating element (7).

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