conductor connection terminal

Abstract

Conductor connection terminal (1) with an insulating housing (2) having at least one conductor insertion opening (20) for receiving an electrical conductor (9) in a conductor insertion direction (L), wherein at least one spring-loaded clamping connection for connecting an electrical conductor (9) by means of spring force is arranged in the insulating housing (2), wherein the spring-loaded clamping 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), characterized in that a driver (6) is arranged on the clamping leg (43), which driver has a deflection surface (60) for deflecting the clamping leg (43) projecting from the clamping leg (43) on the side of the clamping leg (43) facing away from the contact section (31),wherein the clamping leg (43) is movable from a clamping position into an open position by an actuating force (B) exerted on the deflection surface (60) counter to the conductor insertion direction (L).

Description

[0001] The invention relates to a conductor connection terminal with an insulating housing which has at least one conductor insertion opening for receiving an electrical conductor in a conductor insertion direction, wherein at least one spring-loaded clamping connection for connecting an electrical conductor by means of spring force is arranged in the insulating housing, wherein the spring-loaded clamping connection has at least one busbar and a clamping spring which has a clamping leg with a clamping edge for clamping an electrical conductor at a clamping point on a contact section of the busbar.

[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 conductor connection terminal.

[0004] This object is achieved in that a driver is arranged on the clamping leg, which has a deflection surface protruding from the clamping leg on the side of the clamping leg facing away from the contact section (and accordingly the clamping point) for deflecting the clamping leg, wherein the clamping leg can be moved from a clamped position to an open position by an actuating force exerted on the deflection surface counter to the conductor insertion direction. This allows for easy integration of an actuation option for the clamping leg, even in existing conductor connection terminal designs, in particular those embodiments that previously did not have an actuation option for the clamping leg. In this way, proven conductor connection terminals of known design can be expanded to a manual actuation option with little effort. Advantageously, the actuation of the clamping leg can then, for example,from the back of the insulating housing, i.e. opposite to the conductor insertion direction.

[0005] Because the clamping leg is actuated from the rear, the structure of the conductor connection terminal can be kept as flat as possible, since the actuating channel and the conductor entry channel do not have to be arranged next to or above each other.

[0006] The invention is suitable, for example, for compact junction box terminals, e.g. those with a leaf spring connection, in which the clamping leg is connected to a support section of the clamping spring without a spring bend which is known in many conductor connection terminals and which extends over an angular range of more than 180°.

[0007] The clamping point can be formed, for example, between the clamping edge of the clamping leg and a contact point on the contact section on the busbar.

[0008] According to an advantageous embodiment of the invention, the driver is formed integrally with the clamping leg, or the driver is designed as a separate component from the clamping spring, which is attached to the clamping leg. This allows for a variety of design options for the clamping spring and the driver. If the driver is designed as a single piece with the clamping leg, this can be designed, for example, as an extended material section of the clamping leg, diametrically opposed to the side of the clamping edge. If the driver is designed as a separate component, it can be attached to the clamping leg, for example, by means of form-fitting fixing elements.

[0009] According to an advantageous embodiment of the invention, the driver is fixed at a fastening point on the clamping leg at least with respect to forces acting counter to the conductor insertion direction, wherein at least one connecting arm of the driver extends from the fastening point counter to the conductor insertion direction to the deflection surface. In this way, the leverage ratios for deflecting the clamping leg when the deflection surface is acted upon can be designed more favorably. For example, the driver can extend via the at least one connecting arm from a fastening point near the clamping edge to the root of the clamping leg, i.e. to a point at which the clamping leg branches off, for example, from the support section. Depending on the design of the driver, it can, for example, have a central connecting arm or two connecting arms each running laterally along the clamping leg.

[0010] According to an advantageous embodiment of the invention, the at least one connecting arm is arranged orthogonally to the planar extension of the clamping leg and / or orthogonally to the planar extension of the deflection surface. This enables good force transmission and absorption of the force at the deflection surface when the driver is actuated. Furthermore, the area moment of inertia of the driver in the longitudinal direction of the clamping leg can be increased with little effort.

[0011] According to an advantageous embodiment of the invention, the at least one connecting arm is arranged parallel to or at an acute angle to the planar extension of the clamping leg. This variant is particularly suitable for a driver with a central connecting arm.

[0012] According to an advantageous embodiment of the invention, the at least one connecting arm has a higher area moment of inertia in the longitudinal direction of the clamping leg than the clamping leg itself. This ensures that when the driver is actuated, it is essentially the clamping leg that bends and not the driver itself. To increase the area moment of inertia, stiffening elements running in the longitudinal direction, e.g., beads and / or embossings, can be molded into the at least one connecting arm.

[0013] According to an advantageous embodiment of the invention, a pivot bearing is arranged on the side of the clamping leg facing away from the deflection surface, on which pivot bearing the clamping leg can be pivotally supported when the deflection surface is actuated in order to support the pivoting movement of the clamping leg into the open position. This has the advantage that the pivot bearing simplifies the pivoting movement of the clamping leg into the open position and the forces applied to the deflection surface can be reduced. The deflection of the clamping leg can then be carried out much more easily by the user. The support point at which the clamping leg can be supported on the pivot bearing during the pivoting movement can be arranged, for example, between the clamping edge and the point at which the actuating force acts on the deflection surface.In an advantageous embodiment, the support point can be located closer to the point of application of the actuating force than to the clamping edge, or essentially centrally between the point of application of the actuating force and the clamping edge. The support point can form a kind of tilting point at which the clamping leg can perform a tilting movement, similar to a rocker.

[0014] According to an advantageous embodiment of the invention, the insulating material housing has at least one actuating channel in which an actuating tool that is not part of the conductor connection terminal, or a pusher formed as part of the conductor connection terminal, which can be designed as a separate component from the insulating material housing, can be arranged to actuate the clamping leg. The actuating channel can thus be used to apply an actuating force to the driver on the deflection surface. If an actuating tool, e.g. a screwdriver, is used, this can be inserted into the actuating channel if necessary. The actuating tool then does not have to remain on the conductor connection terminal. An electrical conductor with sufficient rigidity can also be used as the actuating tool.

[0015] If the conductor terminal has its own push-button for actuating the clamping leg, this can be permanently located in the actuating channel. In this case, the user must apply a manual actuating force to the actuating surface of the push-button, either directly with a finger or with a suitable tool.

[0016] According to an advantageous embodiment of the invention, the deflection surface extends into the actuation channel or at least into a housing section of the insulating housing arranged as an extension of the actuation channel. The actuation tool or pusher is thus guided through the actuation channel to the deflection surface in a targeted manner, ensuring reliable opening of the clamping point.

[0017] According to an advantageous embodiment of the invention, the actuating channel is accessible via an actuating opening in the insulating housing, which is arranged on a housing side facing away from the conductor insertion opening. The actuating opening can be arranged, in particular, on a housing side diametrically opposite the conductor insertion opening, e.g., the rear of the housing. The tool can be inserted through this actuating opening or, if a trigger is present, it can be manually actuated with an actuating force.

[0018] According to an advantageous embodiment of the invention, the conductor terminal has a retaining element designed to hold the clamping leg in the open position. The retaining element allows the clamping leg to be held in the open position even when no actuating force is exerted on the driver. Such a design allows the integration of automatic release technology into spring-loaded terminals and conductor terminals of various designs. In particular, proven conductor terminals of known design can be upgraded with little effort to include automatic release functionality, i.e., with automatic connection of the electrical conductor to be clamped.

[0019] 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.

[0020] The driver 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. For example, the clamping leg can be locked to the retaining element in the open position.

[0021] 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.

[0022] 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.

[0023] The retaining element can be provided as a separate component, for example, attached to an insulating housing of a conductor terminal, to the busbar, or to another component. The retaining element can also be formed integrally with the clamping spring.

[0024] 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.

[0025] According to an advantageous embodiment of the invention, the spring-loaded terminal connection has a release element, the actuation of which allows the holding element to be deflected to such an extent that the clamping leg held on the holding element is released from the holding element. The release element can have a release section. The clamping leg held on the holding element in the open position can be released from the holding element by the release element when an electrical conductor to be clamped exerts an actuating force on the release section. This allows the clamping leg to be automatically released from the holding element when the electrical conductor is inserted. 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 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 formed as part of the clamping spring, e.g., as a release element formed integrally with the clamping spring, or as a separate component.

[0026] According to an advantageous embodiment of the invention, the release element is part of the component or assembly of the spring-loaded terminal connection that has the retaining element. This allows the design and assembly effort for the spring-loaded terminal 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, rather than two different components or assemblies. For example, the release element can be formed integrally with the retaining element. The component or assembly can be made of plastic or metal, for example, or a combination of such materials.

[0027] According to an advantageous embodiment of the invention, the clamping spring has a support section designed to support the clamping spring on the busbar. This support section allows for secure support of the clamping spring and sufficient support against the spring force exerted by the clamping leg.

[0028] According to an advantageous embodiment of the invention, the support section has a base section and a fastening section, wherein the clamping leg branches off from the base section and the support section engages behind the busbar with its fastening section, so that the busbar rests on the fastening section and is at least partially arranged between the base section and the fastening section. In this case, the clamping leg can branch off from the base section, in particular without a 180° spring bend. For example, the clamping leg can branch off from the base section at an acute angle, which can be less than 60°, for example, in the open position. The base section can be connected to the fastening section via a connecting section.For example, the base portion may be substantially parallel to the attachment portion or at a slight angle thereto, in particular an angle of less than 20°.

[0029] 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 or projects into the extension of the conductor guide channel.

[0030] 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.

[0031] 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°).

[0032] The invention is explained in more detail below using exemplary embodiments and drawings.

[0033] It shows Fig. 1 a conductor connection terminal in a lateral sectional view in the clamping position, Fig. 2 the conductor connection terminal according to Fig. 1 in the open position, Fig. 3 a driver in a first embodiment in perspective view, Fig. 4 a driver in a second embodiment in perspective view, Fig. 5 shows a further embodiment of a conductor connection terminal in a lateral sectional view in the clamping position, Fig. 6 shows a further embodiment of a conductor connection terminal in a lateral sectional view in the clamping position, Fig. 7 the conductor connection terminal according to Fig. 6 in the open position, Fig. 8 the conductor connection terminal according to Fig. 6 with inserted electrical conductor, Fig. 9 a clamping spring in perspective view, Fig. 10 a conductor rail in perspective view, Fig. 11 a combined holding-release element in perspective view.

[0034] The Fig. 1 shows a conductor connection terminal 1 having an insulating housing 2. The insulating housing 2 has a conductor insertion opening 20 on a conductor insertion side, through which an electrical conductor can be inserted into the insulating housing 1 in a conductor insertion direction L and clamped to a spring-loaded terminal connection.

[0035] Visible is a spring-loaded terminal connection arranged in the insulating housing 2, which has a clamping spring 4 and a busbar 3. The clamping spring 4 has a support section 41, via which the clamping spring 4 is supported on the busbar 3. The clamping spring 4 also has a clamping leg 43 branching off from the support section 41 at an acute angle. The clamping leg 43 extends to a free end, at which the clamping leg 43 has a clamping edge 46 for clamping the electrical conductor. In the Fig. In the clamping position shown in Figure 1, the clamping leg 43 rests with the clamping edge 46 against a contact section 31 of the busbar 3 when no electrical conductor is inserted. An electrical conductor can be clamped between the clamping leg 43 or the clamping edge 46 and the contact section 31 at a clamping point 30.

[0036] The support section 41 extends from a base section 40, from which the clamping leg 43 branches off, to a connecting section 42 arranged at an angle thereto. The connecting section 42 merges into a fastening section 44 arranged at an angle to the connecting section 42. The fastening section 44 engages behind the busbar 3, ie it rests on the back of the busbar 3 on a side facing away from the clamping point 30.

[0037] The conductor terminal 1 has a mechanism for transferring the clamping leg 43 from the clamping position to the open position, which Fig. 2. The mechanism includes a driver 6, which can be formed integrally with the clamping spring 4 or, as illustrated in the illustrated embodiment, can be designed as a separate component from the clamping spring 4 and can accordingly be fastened to the clamping spring 4, in particular to the clamping leg 43. In the illustrated embodiment, the driver 6 has hook-shaped fixing elements 62, by means of which it is fastened to a fastening point 63 on the clamping leg 43. From the fastening point 63, the driver 6 extends via at least one connecting arm 61 to a deflection surface 60 of the driver 6, wherein the deflection surface 60 is preferably arranged or aligned orthogonally to the connecting arm 61. The driver 6 can move the clamping leg 43 from the clamped position to the open position by an actuating force B exerted on the deflection surface 60 counter to the conductor insertion direction L.The actuating force B can be transmitted to the deflection surface 60 via an actuating opening 23 or an actuating channel 22 in the insulating housing 2, for example via a tool inserted into the actuating channel 22. The actuating force B transmitted to the deflection surface 60 moves the clamping leg 43 away from the contact section 31 until it is in the position shown in . Fig. 2 shown open position.

[0038] The conductor connection terminal 1 further has a holding element 5, by means of which the clamping leg 43 can be held in the open position. The holding element 5 has a locking element 50, which can lock into the open position with a locking element designed as a counterpart on the clamping leg 43. The clamping leg 43 cannot then easily move back into the clamped position. The locking element formed on the clamping leg 43 can, for example, be formed by the clamping edge 46, as illustrated in the figures. However, at least one separate locking element can also be formed on the clamping leg 43, e.g. in the form of a protruding locking tab, which can then be locked into the locking element 50. The locking element 5 can be fixed to the clamping spring 4 by being held between the busbar 3 and the fastening section 44.

[0039] The conductor connection terminal 1 further has a release element 8, which serves to release the locking of the clamping leg 43 on the holding element 5. In this case, the release element 8 is formed integrally with the holding element 5 to form a combined holding-release element 5, 8, which will be explained in more detail below. The release element 8 has a release section 80 that can be actuated by the inserted electrical conductor. If an electrical conductor exerts a compressive force on the release section 80, the holding element 5 with the locking element 50 is displaced slightly toward a rear housing wall 21 of the insulating housing 2 until the clamping leg 43 can be released from the locking element 50. The clamping leg 43 then springs out until it rests against the inserted electrical conductor and presses it against the contact section 31.

[0040] The Fig. Figure 3 shows a first embodiment of a driver 6. In this embodiment, a connecting arm 61 branches off from the deflection surface 60 at approximately right angles on both opposite sides. Each connecting arm 61 has a fixing element 62 for fixing to the clamping leg 43. The clamping leg 43 can, for example, have widened lateral sections that extend beyond the clamping edge 46 in the width direction. The fixing elements 62 can be hooked onto these lateral sections to fasten the driver 6 to the clamping leg 43.

[0041] The Fig. 4 shows a second embodiment of a driver 6, in which the deflection surface 60 is not as clearly shown as in the embodiment of the Fig. 3. Rather, the deflection surface 60 is formed by an extended section of a central connecting arm 61. The deflection surface 60 then also projects into an area of ​​the insulating housing where it can be actuated by a tool or other element. As can be seen in Fig. 4, the central connecting arm 61 can have stiffening elements in the longitudinal direction in order to increase the area moment of inertia.

[0042] The Fig. 5 shows a conductor connection terminal 1, which is comparable to the embodiment of the Fig. 1. In contrast to Fig. 1 is for the conductor connection terminal according to Fig. 5 a driver 6 according to Fig. 4. With this driver 6, in a similar way as in the embodiment of the Fig. 1, the clamping leg 43 can be deflected into the open position. It can be seen that a bend or curve is arranged within the deflection surface 60, which is supported on the side of the clamping leg 43 facing away from the busbar 3, so that the free end of the deflection surface 60 is oriented away from the clamping leg 43 and projects into the actuating channel 22. Furthermore, the conductor connection terminal 1 according to Fig. 5 also has a combined holding-release element 5, 8, analogous to the embodiment of the Fig. 1.

[0043] The Fig. Figure 6 shows a further embodiment of a conductor connection terminal 1, in which a driver 6 with a deflection surface 60 is also present, which, however, in contrast to the previously described embodiments, is not present as a separate component, but is formed integrally with the clamping spring 4, in particular as an extension of the clamping leg 43 at the end facing away from the clamping edge 46. It can be seen that the deflection surface 60 is similar to the embodiment of the Fig. 5 extends into an area where an operating tool or a permanently installed push button 7, as in Fig. 6, pressure can be applied to the deflection surface 60 in order to move the clamping leg 43 into the open position. Fig. The push button 7 shown in Figure 6 can have an actuating surface 70 accessible from the outside, to which the actuating force B can be applied.

[0044] The design of the Fig. 6 differs from the previously described embodiments in that, to support the pivoting movement of the clamping leg 43 into the open position, a pivot bearing 33 is additionally provided, on which the clamping leg 43 can be supported during the pivoting movement into the open position. As a result, the actuating force B applied by the tool or pusher 7 is converted even more efficiently into the pivoting movement of the clamping leg 43. The pivot bearing 33 can, for example, be connected to the busbar 3 via a support section 32 or be formed integrally with the busbar 3. This arrangement prevents the clamping spring 4 or, in particular, the clamping leg 43 and / or the base section 40 from being displaced at least excessively in the direction of the busbar 3 upon actuation.

[0045] The Fig. 7 shows the conductor connection terminal according to Fig. 6 when the push button 7 is actuated accordingly, so that the clamping leg 43 is displaced or pivoted into the open position and is locked to the locking element 50. If the actuation of the push button 7 is terminated, the clamping leg 43 remains in the open position due to the locking on the holding element 5.

[0046] The Fig. 8 shows the conductor connection terminal according to Fig. 6 with the electrical conductor 9 inserted. It can be seen that the electrical conductor 9 presses with its free end against the release section 80 and deflects it slightly toward the rear housing wall 21 or slightly pivots the release section 80. This deflection is transmitted to the holding element 5 with the locking element 50. As a result, the clamping leg 43 releases from the locking element 50 and springs out, pressing the electrical conductor 9 against the contact section 31.

[0047] The design of the Fig. 6 to 8 with the additional pivot bearing 33 can also be used in the embodiments of the Fig. 1 to 5 can be realized.

[0048] The Fig. 9 shows, by way of example, a clamping spring 4 in which two clamping legs 43 are realized in a one-piece structural unit. The clamping spring 4 is thus suitable for two spring-loaded clamp connections arranged next to one another. The clamping spring 4 can be used with all of the conductor connection terminals described above. The various sections of the support section 41 can be seen, i.e. the base section 40, the connecting section 42 and the fastening section 44. Also visible on the connecting section 42 are molded-on receptacles 47 which serve to receive and support the holding element 5, as will be explained below. Between two connecting sections 42 of a spring-loaded clamp connection, a tab 48 is extended from the fastening section 44 of the clamping spring 4 and serves to fasten the holding element 5, as will be explained below.

[0049] The Fig. 10 shows a busbar 3, which offers two adjacently arranged receiving locations for electrical conductors on its contact section 31 and is accordingly suitable for the Fig. The clamping spring 4 shown in Figure 9 is suitable for implementing two spring-loaded terminal connections arranged side by side. For each spring-loaded terminal connection, a respective pivot bearing element 33 is provided, which is connected to the contact section 31 via support sections 32. The respective pivot bearing element 33 with its two support sections 32 forms a type of frame part through which the electrical conductor to be connected can be inserted.

[0050] Brackets 34 for holding the combined holding-release element 5, 8 can be formed on the busbar 3, in particular in the area facing away from the pivot bearing elements 33.

[0051] By adapting the components (clamping spring 4, busbar 3, insulating housing 2) the conductor connection terminal 1 can also be designed for more than two spring-loaded terminal connections.

[0052] The Fig. 11 shows a combined holding-release element 5, 8 that can be used with the previously described conductor connection terminals. The holding-release element 5, 8 has a holding element 5, which is formed with the aforementioned locking element 50 at the free end. The region of the holding element 5 formed with the locking element 50 has positive connection elements 51 that can be inserted into the receiving elements 47 of the support section 41. As a result, the locking element 50 can be supported on the support section 41, in particular on the connection section 42, against the spring force exerted by the clamping leg 43 in the open position. The holding element 5 merges via upper longitudinal sections 52 into the release element 8, on which the release section 80 is arranged.The release section 80 is connected on its opposite side via lower longitudinal sections 53 to a fastening section 54 of the holding-release element 5, 8, which can be hooked into one of the brackets 34 on the busbar 3 and / or tabs 48 of the clamping spring 4. This fixes the entire holding-release element 5, 8 to the busbar 3.

[0053] When force is applied to the release section 80 by the electrical conductor 9, the lower region of the holding-release element 5, 8, which is attached to the bracket 34 via the fastening section 54, is fixed and cannot be deflected. Accordingly, only the upper region of the holding-release element 5, 8 with the locking element 50 is deflected by the inserted electrical conductor 9 and the release section 80.

[0054] One can see in the Fig.7 also shows that the combined holding-release element 5, 8 can not be designed as a continuous sheet metal part in the region of the upper longitudinal sections 52, but can have a first recess 55 between the upper longitudinal sections 52. Similarly, the combined holding-release element 5, 8 can not be designed as a continuous sheet metal part in the region of the lower longitudinal sections 53, but can have a second recess 56 between the lower longitudinal sections 53. The first and / or second recess 55, 56 can increase the elasticity of the holding-release element 5, 8, whereby the required release forces that must be applied to the release section 80 by the inserted electrical conductor 9 can be reduced.A further advantage of the first and / or second recess 55, 56 is that a viewing window is provided through which it can be visually checked whether the electrical conductor 9 has been inserted sufficiently far into the insulating housing 2, at least if a transparent housing material is used in this area. List of reference symbols: 1 conductor connection terminal 2 insulating housings 3 busbar 4 clamping spring 5 Holding element 6 drivers 7 push buttons 8 Release element 9 electrical conductor 20 conductor entry opening 21 rear housing wall 22 actuation channel 23 Operating opening 30 terminal point 31 Contact section 32 support section 33 swivel bearings 34 Bracket 40 Base Section 41 support section 42 connecting section 43 clamping legs 44 Fastening section 46 clamping edge 47 recording 48 tab 50 locking element 51 connecting element 52 upper longitudinal section 53 lower longitudinal section 54 Fastening section 55 first recess 56 second recess 60 deflection area 61 Connecting arm 62 Fixing element 63 attachment point 70 operating area 80 release section B Actuating force 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] 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), wherein at least one spring-loaded clamping connection for connecting an electrical conductor (9) by means of spring force is arranged in the insulating housing (2), wherein the spring-loaded clamping 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), characterized bythat a driver (6) is arranged on the clamping leg (43), which has a deflection surface (60) projecting from the clamping leg (43) on the side of the clamping leg (43) facing away from the contact section (31) for deflecting the clamping leg (43), wherein the clamping leg (43) can be moved from a clamping position into an open position by an actuating force (B) exerted on the deflection surface (60) opposite to the conductor insertion direction (L). [2] Conductor connection terminal according to claim 1, characterized by that the driver (6) is formed in one piece with the clamping leg (43) or the driver (6) is designed as a component separate from the clamping spring (4) which is fastened to the clamping leg (43). [3] Conductor terminal according to one of the preceding claims, characterized bythat the driver (6) is fixed at a fastening point (63) on the clamping leg (43) at least with respect to forces acting counter to the conductor insertion direction (L), wherein at least one connecting arm (61) of the driver (6) extends from the fastening point (63) counter to the conductor insertion direction (L) to the deflection surface (60). [4] Conductor connection terminal according to claim 3, characterized by that the at least one connecting arm (61) is arranged orthogonally to the planar extension of the clamping leg (43) and / or orthogonally to the planar extension of the deflection surface (60). [5] Conductor connection terminal according to claim 3, characterized by that the at least one connecting arm (61) is arranged parallel or at an acute angle to the planar extension of the clamping leg (43). [6] Conductor connection terminal according to one of claims 3 to 5, characterized bythat the at least one connecting arm (61) has a higher area moment of inertia in the longitudinal direction of the clamping leg (43) than the clamping leg (43). [7] Conductor connection terminal according to one of the preceding claims, characterized by that on the side of the clamping leg (43) facing away from the deflection surface (60) there is arranged a pivot bearing (33), on which the clamping leg (43) can be pivotally supported upon actuation of the deflection surface (60) in order to support the pivoting movement of the clamping leg (43) into the open position. [8] Conductor terminal according to one of the preceding claims, characterized by that the insulating housing (2) has at least one actuating channel (22) in which an actuating tool which is not part of the conductor connection terminal (1) or a pusher (7) designed as part of the conductor connection terminal (1) can be arranged for actuating the clamping leg (43). [9] Conductor connection terminal according to claim 8, characterized by that the deflection surface (60) projects into the actuating channel (22) or at least into a housing section of the insulating material housing (2) which is arranged in extension of the actuating channel (22). [10] Conductor terminal according to one of claims 8 to 9, characterized by that the actuating channel (22) is accessible via an actuating opening (23) of the insulating material housing (2), which is arranged on a housing side (21) facing away from the conductor insertion opening (20). [11] Conductor terminal according to one of the preceding claims, characterized by that the conductor connection terminal (1) has a holding element (5) which is designed to hold the clamping leg (43) in the open position. [12] Conductor connection terminal according to claim 11, characterized bythat the holding element (5) is arranged in the conductor insertion direction (L) behind the terminal point (30) or behind the major part of the busbar (3). [13] Conductor terminal according to one of the preceding claims, characterized by that the spring-loaded terminal connection has a release element (8), 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). [14] Conductor terminal according to claim 13, characterized by that 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 (B) on a release section (80) of the release element. [15] Conductor terminal according to one of the preceding claims, characterized bythat the holding element (5) or a holding-releasing element (5, 8) combined with the release element (8) has at least one first and / or one second recess (55, 56) which is designed as a viewing window for an inserted electrical conductor (9), wherein the insulating housing (2) is made of a transparent material at least in the region of the viewing window. [16] Conductor terminal according to one of the preceding claims, characterized by that the clamping spring (4) has a support section (41) which is designed to support the clamping spring (4) on the busbar (3). [17] Conductor terminal according to claim 16, characterized byin that the support section (41) has a base section (40) and a fastening section (44), wherein the clamping leg (43) branches off from the base section (40) and the support section (41) engages behind the busbar (3) with its fastening section (44) so ​​that the busbar (3) rests on the fastening section (44) and is arranged at least partially between the base section (40) and the fastening section (44).

Images