Electric connection terminal

Abstract

To provide an electric connection terminal for clamping contact with an electrical conductor.SOLUTION: An electric connection terminal 1 for clamping an electric conductor 2 includes: a busbar 5 having an integrally formed side wall 5a, and an abutment wall 5b and a contact wall 5c spaced apart from it which form a conductor connection passage 8 accessible through an insertion opening 9; and a clamping spring 3 having an abutment leg 3a in contact with the abutment wall 5b of the busbar 5 and a clamping leg 3b coupled to it and having a clamping edge 4 guided towards the contact wall 5c of the busbar 5 while forming a clamping point K.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an electrical connection terminal for clamping contact with an electrical conductor, which comprises a busbar forming a conductor connection passage and a clamping spring accommodated therein, the clamping spring having clamping legs connected to abutment legs via spring arches.

[0002] German Patent Application No. 10 2016 111 627 A1 discloses a conductor connection terminal having a busbar part and a clamping spring. The conductor connection terminal has clamping legs aligned toward the busbar part to form clamping points for clamping an electrical conductor, spring arches following the clamping legs, and abutment legs extending transversely to the busbar part with a vertical section having a notch whose edge surrounds the busbar part. Abutment walls adjacent to the busbar part are designed to rest against the vertical sections of the abutment legs of the clamping spring.

[0003] German Patent Application No. 10 2015 017 151 A1 discloses a conductor connection contact element, intended in particular for direct conductor plate contact, which includes a busbar element and a clamping spring for clamping an electrical conductor. The busbar element is made of a sheet metal part having two opposing side walls and a bottom area and a cover area facing the two, forming a conductor connection passage. The conductor guiding area, formed in a first side wall of the busbar element adjacent to the clamping area of ​​the clamping spring, is a section of the first side wall that is aligned obliquely in the direction of the opposite side wall.

[0004] The object of the present invention is to provide a particularly suitable electrical connection terminal, in particular one that has as compact a design as possible.

[0005] This problem is solved according to the invention by the features of each of the independent claims 1, 14, 17, 18 to 19. Preferred embodiments and developments are the subject of the dependent claims (subclaims).

[0006] The electrical connection terminal, intended for clamping contact with an electrical conductor, comprises a busbar having side walls, an abutment wall, and a contact wall. The abutment wall and the contact wall are preferably spaced apart so as to extend parallel to each other. A preferably single side wall of the busbar is connected to the abutment wall and the contact wall. It is particularly preferred that the busbar is U-shaped, with the abutment wall and the contact wall forming the legs of the U-shape and the side wall forming the connecting legs of the U-shape.

[0007] The height of the side walls of the busbar is preferably greater than the width of the contact wall. The height of the side walls is preferably less than 2.5 times the width of the contact wall. The width of the contact wall is advantageously between 50% and 80%, particularly between 60% and 75%, of the width of the abutment wall. The width of the contact wall of the busbar is preferably between 40% and 60%, particularly (50±5)%, of the height of the side walls. The width of the abutment wall of the busbar is advantageously between 50% and 80%, particularly (70±5)% of the height of the side walls.

[0008] The busbars are preferably constructed from sheet metal parts, in particular as stamped and bent parts or in the form of such. It is particularly advantageous for the busbars to form spring cages, in particular for contact springs or clamping springs. The busbars form or provide conductor connection passages, hereinafter also referred to as (conductor) connection tunnels, which are accessible via insertion openings.

[0009] The electrical connection terminal has a clamping spring having an abutment leg and a clamping leg. The abutment leg is particularly preferably connected to the clamping leg of the clamping spring via a spring arch. The clamping spring is preferably bent in an approximately U- or V-shape. The clamping leg has a clamping edge at its free end. The clamping spring is preferably accommodated at least partially, locally, or regionally within the conductor connection passage of the busbar. In particular, at least the clamping edge of the clamping spring is located within the conductor connection passage or conductor connection tunnel of the busbar. The clamping spring is preferably tensioned within the busbar between the abutment wall and the contact wall. The abutment leg preferably abuts against the abutment wall of the busbar over as much of its entire surface as possible.

[0010] A clamp spring is understood to mean just one or more clamp springs. The clamp spring is suitable for clamping an electrical conductor. The clamp spring is preferably formed and bent from spring steel. The clamp spring preferably has just one clamp leg for clamping an assigned electrical conductor, so that the conductor is not clamped by two or more clamp legs of the clamp spring. The abutment leg, the spring arch following it, and the clamp leg following it are preferably formed integrally.

[0011] The abutment legs of the clamping spring are configured to abut against a stationary region of the connection terminal to receive the counteracting spring force (return force). The abutment legs preferably abut only against the busbar, in particular against its abutment wall. The connection formed or provided by the clamping spring and the busbar is preferably self-supporting. Advantageously, the abutment legs are directly connected to the clamping legs.

[0012] The clamping legs extend inside the conductor connection passage towards the contact wall of the busbar. It is particularly preferred that the clamping legs have a bend or a bend, forming two leg sections with different slopes. At their free ends, the clamping legs have clamping edges that are guided towards the contact wall of the busbar, forming a clamping point for clamping a conductor that is guided into the (conductor) connection passage through the insertion opening.

[0013] The leg length of the abutment leg is preferably greater than the leg length of the clamping leg of the clamping spring, and is preferably between 50% and 90%, in particular between 55% and 85%, preferably between 60% and 80%, and especially preferably (70±5)% of the leg length of the abutment leg.

[0014] The spring arch of the clamping spring advantageously projects from the side of the abutment leg facing the clamping leg, in other words the arch section of the spring arch adjacent to or merging into the abutment leg projects from the abutment leg on the side facing (below) the clamping leg.

[0015] In a preferred embodiment, the spring arches of the clamping springs protrude from the busbar at the insertion opening. In particular, the spring arches protrude from the abutment wall of the busbar. In other words, the arch sections of the spring arches that transition into the abutment legs protrude from the abutment wall of the busbar. It is particularly preferred that the abutment wall of the busbar has a cutout into which the spring arches or arch sections can be inserted. Additionally or alternatively, the spring arches or the arch sections of the spring arches protrude from the side walls and / or contact walls of the busbar at the insertion openings of the conductor connection channels of the busbar.

[0016] In a particularly advantageous embodiment of the clamp spring, its clamping legs have an operating area, which serves for operating the clamping legs, in particular by means of a lever, a slider or an operating tool. The operating area particularly preferably projects from the clamping edge at least in the (conductor) insertion direction. In particular, the operating area projects from the clamping edge transversely to the conductor insertion direction. Preferably, the operating area projects from the clamping edge not only in the conductor insertion direction but also transversely to the conductor insertion direction, parallel to the abutment wall and / or contact wall of the busbar.

[0017] In one preferred development, the operating area faces toward the contact leg of the clamping spring. The operating area is preferably configured in an arched shape, in particular facing toward the contact leg of the clamping spring at the end of the arch. This provides a particularly suitable actuation of the clamping leg, in particular for the purpose of deflecting the clamping spring while releasing the contact point, in order to reliably insert the conductor into the contact point. A further advantage is that the actuation element can bring a pivoting lever, also referred to as a lever hereinafter, into contact with the operating area adjacent to (spatially next to) or along the contact edge of the clamping leg.

[0018] One preferred embodiment of the busbar provides for the contact walls of the busbar to have a smaller width than the abutment walls or to have a cutout. Through the cutout or due to the relatively small wall width of the contact walls of the busbar, the operating area of ​​the clamping legs of the clamping spring is accessible normal to the plane of the contact walls or perpendicular to them (transverse to the conductor insertion direction). In other words, the operating area of ​​the clamping legs is accessible in the direction of the clamping edge or perpendicular to it. This advantageously allows for a particularly compact construction of the connection terminal.

[0019] In one preferred embodiment, the abutment legs of the clamping springs are provided with cutouts, hereinafter also referred to as cutouts (spring cutouts). It is particularly preferred that the abutment walls of the busbars are provided with cutouts, hereinafter also referred to as cutouts (bar cutouts). The spring cutouts and the bar cutouts are preferably aligned with one another. It is preferred that the spring cutouts and the bar cutouts overlap at least partially or almost completely.

[0020] The cutout position of the spring cutout or the position of the cutout concept formed by the spring cutout and the bar cutout is advantageously adapted to the position of the clamping legs of the clamping spring that are bent or pivoted inwards towards the abutment leg so that when the clamping spring is stressed or when the clamping legs are pivoted, their free ends, in particular the operating areas of the clamping legs, can move into the spring cutout or into the spring cutout and into the bar cutout, thereby achieving a particularly compact design of the basic structure of the connecting terminal consisting of the busbar and the contact spring.

[0021] In other words, this cutout concept allows the design height or the wall distance between the contact wall and the abutment wall of the busbar to be particularly small or minimized. Additionally, or with the same overall height of the conductor connection channel, there is the advantage that a correspondingly increased space for the conductor, for example for a strand conductor, is provided inside the conductor connection channel. This allows even a correspondingly large conductor cross-section to be connected or clamped.

[0022] In one preferred development or embodiment of the electrical connection terminal, in particular the basic structure of the connection terminal consisting of a busbar and a contact spring, at least one positive connection or positive-fitting joint (bonding joint) is provided between the clamping spring and the busbar. The at least one positive connection is preferably formed between the material of the clamping spring and the busbar itself, i.e., without any additional connecting elements.

[0023] A "formal joint" or "formal joint" between at least two parts connected to one another is understood here and below to mean in particular that the integration of the parts connected to one another is achieved by a direct fit of the contours of the parts in at least one direction, in other words a "locking" of the mutual movement in that direction is achieved by form.

[0024] In particular in this development or embodiment, a joint extension is formed integrally with the abutment leg of the clamping spring, in particular oriented transversely to the conductor insertion direction. Advantageously, a (corresponding) joint opening is provided in the busbar, into which the joint extension on the clamping spring is received. The joint opening on the bar is preferably provided in or on the transition between the abutment wall and the side wall, in particular in the bending region between the side wall and the abutment wall.

[0025] It is particularly preferred that the busbar is provided with a connection opening with a narrowed section. In particular, a contact profile of the contact leg of the clamping spring on the connection extension is intended to be only localized and / or to act as a point contact. Such a contact profile is preferably formed by a wave-like shape of the opening edge of the bar-side connection opening, which faces the spring-side connection extension. The connection extension of the contact leg of the clamping spring is preferably inserted into the connection opening of the busbar in a form-fit and / or friction-fit manner.

[0026] In a preferred embodiment, a support bracket or clamping bracket (hereinafter also referred to as a support extension) is molded onto the contact wall of the busbar, with its free end directed or guided towards the abutment wall of the busbar. In particular, the support bracket is provided on the end of the bar facing the insertion opening, or on the short side facing away from the insertion opening in the conductor insertion direction, or on the end face of the busbar. A joint gap is formed between the support bracket or its free end and the abutment wall of the busbar, in which the abutment legs of the clamping spring are received and / or clamped locally or with one leg section.

[0027] In one advantageous development, a connecting extension is integrally formed on the abutment wall of the busbar, in particular on the bar end facing the insertion opening, which is aligned with or guided towards the contact wall of the busbar. The connecting extension preferably has a connecting contour that corresponds to the connecting element of the support bracket, in particular by establishing a form-fit or form-fit connection. The connecting extension may also have a connecting contour into which the connecting element of the support bracket engages in a form-fit manner. A connecting pin, in particular a shaped connecting pin, formed from the side wall of the busbar may be accommodated in the connecting opening. Alternatively, a connecting pin, in particular a shaped connecting pin, formed from a connecting contact (fork contact or knife contact) integrally formed on or connected to the busbar, in particular from the bar end facing the insertion opening, may be accommodated in the connecting opening.

[0028] The premise of this connection concept, which is also an independent invention, is that the bar walls facing each other at a distance or the bar sections of the busbar forming the spring cage must be connected in a suitable manner, in particular to withstand the spring force of the clamping springs tensioned between these bar sections or bar walls or to receive this while respecting the dimensional stability of the busbar. For this purpose, the connection can be configured, for example, in the form of a puzzle-piece or swallow-tail connection or in the form of any other type of connection with a mirrored connection contour.

[0029] This joining concept also allows for further or alternative functions, in particular a suitable hold-down and / or buckle functionality of the abutment legs of the clamping spring, for example to ensure a constant positioning and / or an even contact force on the contact legs (tulip legs) of the fork contacts on the plug-in contact side of the busbar facing the conductor insertion opening.

[0030] One preferred development provides for a positioning extension to be molded onto the busbar, in particular onto the side wall, preferably in the region of the (conductor) insertion opening, which preferably projects into the spring arch of the clamping spring while abutting the spring arch and / or the abutment leg, thereby achieving a particularly favorable fixation of the position (spring position) or orientation (position fixation) of the clamping spring within the conductor connection channel.

[0031] In a particularly preferred embodiment of the electrical connection terminal, an operating element is provided for pivoting the clamping legs of the clamping spring transversely to the conductor insertion direction, preferably facing the abutment legs of the clamping spring, in particular against the spring force of the clamping spring. The operating element can be operated, for example, manually or by means of an operating tool and is configured accordingly.

[0032] The connecting terminal preferably has a bearing and a counter-bearing for supporting the operating member for pivoting. The counter-bearing for the operating member is arranged, for example, in the housing (insulating material housing, terminal housing) and / or in the busbar. The rotation axis of the operating member preferably runs parallel to the contact wall and outside the conductor connection passage, in particular on the side of the contact wall facing the clamping point, and transversely to the conductor insertion direction, in other words transversely to the insertion direction of the conductor into the connection passage formed by the busbar.

[0033] A preferred embodiment of an electrical connection terminal for clamping an electric conductor, which is also an independent invention, comprises a busbar having a side wall with an abutment wall integrally formed therewith and a contact wall spaced apart from, preferably parallel to, the abutment wall, forming a conductor connection passage accessible through the insertion opening. The connection terminal has a clamping spring, particularly arranged in the conductor connection passage, having abutment legs contacting the abutment walls of the busbar and clamping legs connected thereto via spring arches and having clamping edges that form a clamping point and are guided towards the contact walls of the busbar. This clamping spring is particularly suitable for clamping a conductor inserted into the conductor connection passage through the insertion opening in the insertion direction between the clamping spring and the busbar.

[0034] In this embodiment, the electrical connection terminal has an operating member for pivoting the clamping leg toward its abutment leg against the spring force of the clamping spring. In a preferred embodiment, the operating member is mounted for pivotal movement about an axis of rotation on the exterior of the busbar, in particular above the contact wall or on the side facing away from the contact location. The operating member can preferably be introduced into the conductor connection passage through a cutout in the contact wall of the busbar. The cutout can extend over the entire length of the contact wall in the conductor insertion direction. In other words, the width of the contact wall can be smaller than the width of the abutment wall.

[0035] Advantageously, the operating element can be connected to and / or can abut against an operating area of ​​the clamping leg that protrudes beyond the clamping edge, in particular the operating element has a preferably chamfered end surface (operating edge) that abuts, preferably in a sliding or rolling manner, against the operating area of ​​the clamping leg of the clamping spring during actuation of the operating element.

[0036] In a preferred embodiment, the operating element has a body with two integrally formed bearing pins on either side. In a particularly preferred development, which is also an independent invention, the operating element is provided with integrally formed bearing pins which are coaxial with each other and have different axial lengths and / or different pin diameters.

[0037] The operating element preferably has an eccentric section extending radially relative to the axis of rotation, in particular in the form of a downward keel. It is particularly preferred that the operating element has a body with an axial cutout, in particular a chamfered or arched pivot profile. It is particularly preferred that the operating element has a lever section extending radially relative to the axis of rotation, in particular a lever section that can be manually operated.

[0038] According to another aspect, an electrical connection terminal for clamping an electrical conductor, which is also an independent invention, has a busbar with a side wall on which an abutment wall and a contact wall spaced apart from each other are integrally formed, forming a conductor connection passage accessible through the insertion opening. Preferably, a clamping spring arranged at least partially in the conductor connection passage has an abutment leg that contacts the abutment wall of the busbar and a clamping leg connected to it via a spring arch. The clamping leg has a clamping edge that forms a clamping point and is guided toward the contact wall of the busbar. The clamping edge serves to clamp a conductor inserted in an insertion direction into the conductor connection passage through the insertion opening, between the clamping spring and the busbar.

[0039] In this embodiment, the electrical connection terminal has contacts (connection contacts) provided on the bar end of the busbar facing the insertion opening, in particular molded integrally therewith. These contacts may be knife contacts. Preferably, the (connection) contacts are fork contacts with contact legs, hereinafter also referred to as tulip legs or fork legs, oriented along the insertion direction and forming contact points for the contact pins. In the region of their free, movable leg ends, the contact legs preferably have facing curved sections, in particular produced by bead-shaped embossing, which form the contact points or between which the contact points are formed.

[0040] The electrical connection terminal, particularly in an embodiment that is also an independent invention, has a two-part terminal housing, each housing part of which is preferably engaged with a U-shaped bus bar.

[0041] The housing parts preferably have connecting elements or locking profiles corresponding to the busbars. Advantageously, the first housing part, which accommodates the busbars, in particular with clamping springs already arranged therein, has the first connecting elements or first locking profiles, while the contact walls of the busbars have corresponding locking profiles or corresponding connecting elements. It is particularly preferred that the second housing part, which accommodates the connecting contacts or fork contacts in particular, has the first connecting elements or first locking profiles, while the contact walls of the busbars have corresponding locking profiles or corresponding connecting elements.

[0042] The terminal housing or its housing parts are preferably made of insulating material, in particular plastic. The conductor-connecting passage is preferably closed by a side wall of the terminal housing or insulating material housing, in particular of its first housing part, in the area facing the side wall of the busbar. In other words, the side wall of the terminal housing or insulating material housing forms a wall section that closes the conductor-connecting passage on the periphery, or a side wall that is free of the busbar.

[0043] In a preferred embodiment or development, the terminal housing, in particular its first housing part, has a relief area that is penetrated by the operating element, in particular by its eccentric area. In other words, the operating element, in particular its eccentric area, penetrates into the relief area of ​​the terminal housing and through it into the conductor connection passage. Additionally or alternatively, the operating element operates the clamping spring or its clamping leg only in the area facing the side wall of the busbar.

[0044] In a preferred embodiment or development, the side wall of the terminal housing and the operating member form a passage wall that closes the conductor connection passage on the circumferential side. The side wall of the terminal housing and the operating member, in particular the eccentric section thereof, are preferably aligned with one another, in particular within the limits of manufacturing tolerances.

[0045] In a preferred embodiment or development, the side wall of the terminal housing and the operating element (eccentric section) aligned with the side wall form a passage wall that closes the conductor-connecting passage on the periphery. The terminal housing, in particular its first housing part, preferably has an inlet passage for the conductor, which is particularly configured to end in a funnel shape or tapered towards the conductor-connecting passage.

[0046] It is particularly preferred that the insertion area for the conductor through the inlet passage into the conductor connection passage of the connection terminal is free from edges or other obstacles (impingement points), so that the conductor can be guided unhindered to the contact point. Advantageously, a recess in the housing for the spring arch of the clamping spring or for the arch section of the spring arch is provided in the passage area of ​​the inlet passage of the terminal housing, which opens into the conductor connection passage.

[0047] The present invention will now be described in detail with reference to the accompanying drawings, in which: [Brief explanation of the drawings]

[0048] [Figure 1] 1 shows a side view of an electrical connection terminal having a bus bar forming a connection passage for an electrical conductor (conductor connection passage) and a clamp spring accommodated therein; [Figure 2] 1 shows a perspective view of an electrical connection terminal having a bus bar forming a connection passage (conductor connection passage or conductor connection tunnel) for an electrical conductor, a clamp spring accommodated therein, and a fork contact; [Figure 3] The side view shows an electrical connection terminal having a bus bar that forms a connection passage (conductor connection passage) for an electrical conductor, a clamp spring accommodated therein, and a pivot lever as an operating member for operating the clamp spring. [Figure 4] An electrical connection terminal having a bus bar forming a connection passage (conductor connection passage) for an electrical conductor is shown in a perspective view looking towards a side wall having a joint opening and a joint extension of a clamp spring housed in the conductor connection passage. [Figure 5] 1 shows a perspective view of an electrical connection terminal having a bus bar and a clamp spring housed therein, the clamp spring having a cutout at the abutment leg. [Figure 6] FIG. 1 is a side view of an electrical connection terminal having a bus bar that forms a connection passage (conductor connection passage) for an electrical conductor and a clamp spring housed therein that has a spring arch and a positioning extension for the bus bar inserted therein. [Figure 7] An electrical connection terminal having a bus bar is partially shown in a perspective view looking towards a side wall having a joint extension housed in a joint opening and a bus bar positioning extension housed in a spring arch of a clamp spring. [Figure 8] 1 is a partial perspective view of an electrical connection terminal having a bus bar with the abutment legs of a clamp spring housed (regionally or locally) in a joint gap between an abutment wall and a support bracket of the bus bar; [Figure 9] 1 shows, in a perspective view, a partial view of an electrical connection terminal having a busbar in which a clamp spring having cutouts in the abutment legs is arranged and a corresponding cutout in the abutment wall of the busbar; [Figure 10] FIG. 1 shows a side view of an electrical connection terminal having a bus bar forming a connection passage (conductor connection passage) for an electrical conductor and a clamp spring housed therein having an operating area adjacent to and molded from the clamping edge of the clamp leg. [Figure 11] 1 shows an electrical connection terminal with a busbar in a perspective view with a view to a cutout in the contact wall as an access for an operating member for a clamping leg of a clamping spring, which is arranged, in particular, tensioned, between the contact wall and the abutment wall of the busbar. [Figure 12] 12 shows a perspective view of the electrical connection terminal of FIG. 11 with a lever as an operating member pivoted to abut against an operating area. [Figure 13] 1 shows a perspective view of a housing for a parallel arrangement of electrical connection terminals with an operating lever pivotably mounted on the housing side; [Figure 14]A first embodiment of a first housing part engaged with an abutment wall of a busbar and a second housing part engaged with a contact wall of a busbar is shown in a cross-sectional view taken along line XIV-XIV in FIG. 13 . [Figure 15] A second embodiment of the first housing part locked with the abutment wall of the busbar and the second housing part locked with the contact wall of the busbar is shown in the drawing of FIG. [Figures 16a-16d] 1 shows a plan view of an operating lever having bearing pins of different geometries or dimensions (pin length, pin diameter) integrally formed on both sides of the body with respect to the axis of rotation;

[0049] Corresponding parts are designated by the same reference numerals in all the drawings.

[0050] The electrical connection terminal 1 shown in the figures allows for the electrical connection of a conductor 2 (shown in Figures 1 and 14). A conductor is understood here and below to mean in particular the (conductor) core of an (electrical) circuit, consisting of one or more wires of an electrically conductive material, for example copper, surrounded by a conductor jacket of an insulating material.

[0051] For electrical connection, the conductor 2 is clamped by the clamp spring 3. The spring force of the clamp spring 3 acts on the conductor 2 to clamp it. In particular, the free end (free spring end or free leg end) of the clamp spring 3 forms a clamp edge 4, which bites into the material of the conductor (its conductor core) 2 and thus significantly increases the pull-out force.

[0052] The connection terminal 1 has a busbar 5 for making electrical contact with the conductor 2. The busbar 5 is preferably made of a material having better electrical conductivity than the clamping spring 3. The conductor 2 is electrically connected to the busbar 5 accordingly. The connection terminal 1 preferably has an operating member 6, preferably in the form of a (pivoting) lever, for operating the clamping spring 3. The busbar 5 advantageously has a further electrical connection, for example a knife contact or a solder contact (not shown), for a further electrical connection, or a further connection terminal for connecting a further conductor. As a further electrical connection, a fork contact 7 is preferably provided, which can be seen in particular in Figures 2 to 5 and in Figures 11 and 12.

[0053] The electrical connection terminal, which is intended for clamping contact of an electrical conductor 2, has a busbar 5 and a clamping spring 3, in the basic concept shown in Figure 1. The busbar has a side wall 5a, an abutment wall 5b, and a contact wall 5c. The abutment wall 5b is configured at an angle, in particular a right angle, to the side wall 5a. The contact wall 5c is also bent at an angle, in particular a right angle, to the side wall 5a. The abutment wall 5b and the contact wall 5c are spaced apart from each other or extend at least approximately parallel to each other. The busbar 5 is made U-shaped, preferably with three walls 5a, 5b, and 5c.

[0054] The busbar 5 forms a conductor connection passage or tunnel 8 into which the conductor 2 can be inserted in the connection terminal in the insertion direction E via an insertion opening 9. It is particularly preferred that the abutment wall 5b of the busbar 5 also delimits the conductor connection passage (tunnel) 8, so that the conductor 2 is guided through or by the abutment wall 5b of the busbar 5 also in the rear passage section facing away from the insertion opening 9.

[0055] The busbars 5 have, in particular with a U-shaped geometry, a good electrical conductivity or a low (electrical) resistance due to the high material content and a favorably compact design.

[0056] In a preferred and particularly compact construction of the connection terminal 1, the height of the side wall 5a (side wall height of the busbar 5) is less than 2.5 times the width of the contact wall 5c (contact wall width of the busbar 5).

[0057] The width of the contact wall 5c of the busbar 5 - in relation to the insertion direction E - is in particular between 60% and 75% of the width of the abutment wall 5b. The width of the contact wall 5c of the busbar 5 is in particular (50±5)% of the height of the side wall 5a. The width of the abutment wall 5b is in particular (70±5)% of the height of the side wall 5a of the busbar 5. The height of the side wall 5a of the busbar is preferably (3±1) mm. This makes it possible to provide a particularly compact connection terminal.

[0058] The clamping spring 3 has a contact leg 3a, which is integrally connected or formed (by bending) with the clamping leg 3b via a spring arch 3c, and a clamping leg 3b. The clamping spring 3 is bent approximately in a U-shape. The leg length of the clamping leg 3b of the clamping spring 3 is, in particular, 70±5% of the leg length of the contact leg 3a. The leg length of the clamping leg 3b of the clamping spring 3 is preferably 5.5±1.5 mm.

[0059] The clamping legs 3b, which are preferably bent, have a clamping edge 4 at their free ends. The clamping spring 3 is accommodated in the conductor connection passage 8 of the busbar 5 and is preferably stretched between the abutment wall 5b and the contact wall 5c. The abutment legs 3a of the clamping spring 3 abut against the abutment wall 5b of the busbar 5 mechanically and / or electrically.

[0060] The clamping leg 3b of the clamping spring 3 extends inside the conductor connection passage towards the contact wall 5c of the busbar 5. The clamping leg 3b has a bend or bend 10, forming a first leg section 10a that leads to the spring arch 3c and a second leg section 10b that leads to the clamping edge 4 and has a greater slope than the first leg section 10a. The clamping edge 4 at the free leg end of the clamping leg 3b forms, together with the contact wall 5c of the busbar 5, a clamping point K (FIGS. 1 and 10) for clamping contact of the conductor 2 that has been threaded into the conductor connection passage 8 via the insertion opening 9.

[0061] The spring arch 3c of the clamping spring 3 projects from the busbar 5 at the insertion opening. The arch section of the spring arch 3c that merges into the abutment leg 3a projects from the abutment wall 5b of the busbar 5. It can be seen that the spring arch 3c of the clamping spring 3, or the arch section of the spring arch 3c that merges into the abutment leg 3a, projects beyond the abutment leg 3a on its underside facing towards the abutment wall 5b of the busbar 5.

[0062] The contact wall 5b of the busbar 5 has a cutout 11 into which the spring arch 3c or arch section is accommodated. The arch apex 3d of the spring arch 3c of the clamping spring 3 protrudes from the side wall 5a and, in the illustrated embodiment, also from the contact wall 5c of the busbar 5 at the insertion opening 9 of the conductor connection channel 8.

[0063] As can be seen more clearly in connection with Figure 2, the clamping leg 3b of the clamping spring 3 has an actuation area 12 for actuating the clamping leg 3b by means of a lever 6 that is rotatable or pivotable about a rotation axis D. The actuation area 12 projects from the clamping edge 4 or is spatially located to the side of the clamping edge 4 on the edge facing away from the side wall 5a of the busbar 5. With respect to the rotation axis D of the lever 6, the actuation area 12 projects axially from the clamping edge 4. The actuation area 12, which is preferably configured in an arched shape, is aligned so as to face the abutment leg 3a.

[0064] The busbar 5 has a cutout 13 in its contact wall 5c, through which the operating area 12 is accessible. The lever 6 can thus be pivoted via the bar-side cutout 13, and thereby spatially beside the clamping edge 4 of the clamping leg 3b, into abutment against the operating area 12 of the clamping leg 3b, thereby pivoting the clamping leg 3b towards the abutment leg 3a against the spring force of the clamping spring 3. For this purpose, the lever 6 preferably has an eccentric area 6b, which has a chamfered or arched end face 14 and is integrally formed on the body 6a, extending radially relative to the axis of rotation D. When the lever 6 is actuated, this end face 14 abuts against the operating area 12 of the clamping leg 3b in order to stress the clamping spring 3 or to release the conductor clamping point K formed between the clamping edge 4 and the underside of the contact wall 5c of the busbar 5 facing the abutment wall 5b. The lever 6 has a manually operable lever section 6c which extends radially relative to the axis of rotation D.

[0065] As can be seen more clearly in connection with Figures 3, 4 and 12, the body 6a of the lever 6 has a bearing pin 15 molded into it on each side. The lever 6 or its body 6a has a cutout or stepped notch 16 and a chamfered or arched pivot contour 17 (Figure 12). The stepped notch 16 forms or provides a disk-shaped eccentric area 6b of the lever 6. It is only by means of this eccentric area 6b that the lever 6 abuts and applies stress to the clamping leg 3b or operating area 12 of the clamping spring 3.

[0066] Figure 3 shows the lever 6 at the so-called dead point. In this state, the restoring force of the clamping spring 3 prevents the lever 6 from returning to the initial position shown in Figure 2, for example. The clamping point K therefore remains open until the lever 6 is (manually) moved out of the dead point.

[0067] When the clamping spring 3 is stressed, only the eccentric section 6b of the lever 6 presses against the clamping leg 3b. The resulting one-sided load or asymmetric force transmission of the lever 6 advantageously allows for a favorable geometric design of the bearing pin 15 (FIGS. 16a to 16d). In this position, in which the clamping point K is virtually completely open, the clamping leg 3b contacts the abutment leg 3a. In other words, in this position, there is virtually no gap or only a small gap or distance between the clamping leg 3b and the abutment leg 3a, at least in part. This gap is preferably less than half the diameter d of the spring arch 3c. The diameter d of the spring arch 3c of the clamping spring 3 is between 0.5 and 1.5 mm.

[0068] As can be seen in conjunction with Figures 3, 5 and 6 as well as Figures 8 and 9, the abutment legs 3a of the clamping springs 3 have cutouts 18, also referred to below as spring cutouts, as local cutouts. It is particularly preferred that the abutment walls 5b of the busbars 5 are also provided with cutouts 19, also referred to below as bar cutouts, as local cutouts. The bar cutouts 19 overlap the spring cutouts 18 (Figure 9).

[0069] 3, the cut-out position of the spring cutout 18 is adapted to the position of the clamping leg 3b of the clamping spring 3, which is bent or pivoted inwards towards the abutment leg 3a, so that when the clamping spring 3 is stressed and the clamping leg 3b pivots, its operating area 12 enters into the spring cutout 18 or into it and into the bar cutout 19. This allows for a particularly compact construction of the basic structure of the connection terminal 1, consisting of the busbar 5 and the contact spring 3.

[0070] 4 to 12 show - again taking into account the basic structure of the electrical connection 1 consisting of a busbar 5 and a contact spring 3 - embodiments of intended, in particular form-fitting, joint connections between the clamping spring 3 and the busbar 5. Each, in particular form-fitting, joint connection consists of the material of the clamping spring 3 and the material of the busbar 5 itself.

[0071] 4 shows an embodiment of an electrical connection terminal 1 in which a joint extension 20 oriented transversely to the conductor insertion direction E or axially - with respect to the rotation axis D - is molded onto the abutment leg 3a of the clamping spring 3. A (corresponding) joint opening 21 is cut into the busbar 5, in which the joint extension 20 on the clamping spring side is received. The joint opening 21 on the bar side is cut into the bending area 22 between the side wall 5a and the abutment wall 5b.

[0072] 7, the busbar 5 is provided with a connection opening 21 which forms a local, in particular point-like, abutment of the abutment leg 3a of the clamp spring 3 against the connection extension 20 and which has a narrow spot 23. The narrow spot 23 is formed by the crest of a wave of the wave-shaped opening edge 21a of the bar-side connection opening 21 which faces towards the connection extension 20.

[0073] As can be seen more clearly from Figures 8 to 10, the contact wall 5c of the busbar 5 is provided with a support or clamping bracket 24. This is integrally formed with the abutment wall 5b or formed therefrom, in particular by stamping and bending, on the short side—facing away from the (conductor) insertion direction E of the insertion opening 9—or in the region of the end face of the busbar 5 facing the insertion opening 9. The support or clamping bracket 24 is preferably curved so that it extends parallel to the side wall 5a. The width of the support or clamping bracket 24 in the insertion direction E, in the region of its narrow bracket section, is preferably approximately (10±1)% of the width of the busbar 5.

[0074] Between the support bracket 24 or its free end and the abutment wall 5b of the busbar 5, a connection gap 25 is formed, into which the abutment leg 3a of the clamping spring 3 is inserted regionally or preferably positively and / or clampably with the bar or leg section 26.

[0075] In one embodiment of the connection terminal 1, a bracket-shaped connecting extension 27 is molded onto the abutment wall 5b of the busbar 5, leading towards or being guided towards its contact wall 5c. This is at the end of the bar facing the insertion opening 9 and in particular directly adjoins or abuts the support bracket or clamping bracket 24. The connecting extension 27 has a connecting contour 28 into which a connecting element 29 of the support bracket 24 engages in a form-fitting manner. The connecting connection shown is configured in the manner of a puzzle-piece connection.

[0076] The joint extension 27 has a joint opening 30 in which a joint pin 31 is received, which joint pin is formed or moulded from the side wall 5a of the busbar 5 or from the fork leg 7a of the fork contact 7. Such a joint concept makes it possible to absorb the spring force of the clamping spring 3 tensioned at the busbar 5 between its bar sections or bar walls 5b, 5c while maintaining the dimensional stability of the busbar 5. A constant positioning and / or an even contact force at the fork contact 7 can also be ensured.

[0077] As can be seen in particular from Figures 6, 7 and 10, the busbar 5 or its side wall 5a has a positioning extension 32 molded into it in the area of ​​the (conductor) insertion opening 9. This protrudes into the spring arch 3c of the clamping spring 3, preferably abutting against the spring arch 3c and / or the abutment leg 3a. This ensures a good positioning or spring positioning of the clamping spring 3 inside the conductor connection channel 8 or in the busbar 5.

[0078] 12 shows an electrical connection terminal 1 having a fork contact 7 with contact legs or fork legs (tulip legs) 7a, 7b that are inclined towards each other and are molded onto the end of the busbar 5 facing the insertion opening 9. These legs are oriented along the insertion direction E and form contact locations 33 for, for example, contact pins. For this purpose, the contact legs 7a, 7b have (inward) bends 34 formed by bead-like stamping that face each other in the region of their free, movable leg ends.

[0079] Figure 13 shows a parallel housing 35 of electrical connection terminals with a pivoting or operating lever 6 pivotably mounted on the housing. Figures 14 and 15 show the locking connection between the busbar 5 of the electrical connection terminal 1 and the housing parts 36, 37 of the two-part terminal housing 35.

[0080] The housing 35 has a number of (conductor) insertion passages 38 corresponding to the number of connecting terminals arranged in a row. Of these, only the insertion passages 38 in the first housing part 36 are shown in detail. The first housing part 36 of the terminal housing 35 has a side wall 36a that closes the conductor connection passage 8 on the periphery or replaces or forms the missing side wall of the busbar 5. The terminal housing 35, and in particular its first housing part 36, has a relief area 36b for the operating member 6. The eccentric section 6b of the operating member 6 passes through the relief area 36b and extends into the conductor connection passage 8.

[0081] The housing parts 36, 37 have connecting elements 39 or locking contours 40 corresponding to the busbars 5. In the embodiment shown in Fig. 14, the first housing part 36, which accommodates the busbar 5 with the clamping spring 3 already arranged therein, has a housing-side connecting element 39a in the form of a locking hook, which engages in a bar-side locking contour (cutout) 40a in the abutment wall 5b of the busbar 5. The second housing part 37, which accommodates the fork contacts 7, has a connecting element 39b, also configured as a locking hook, which engages in a locking contour (cutout) 40b in the contact wall 5c of the busbar 5.

[0082] In the embodiment shown in Fig. 15, the first housing part 36, which accommodates the busbar 5 with the clamping spring 3 already arranged therein, has a housing-side locking contour 41a in the form of a locking notch, into which engages a bar-side connecting element 42a in the form of a pawl molded out of the abutment wall 5b of the busbar 5. The second housing part 37, which accommodates the fork contact 7, has a housing-side locking contour 41b in the form of a locking notch, into which engages a bar-side connecting element 42b in the form of a pawl molded out of the contact wall 5c of the busbar 5.

[0083] The inlet passage 38 of the terminal housing 35 or its first housing part 36, which opens into the conductor connecting passage 8, terminates in a funnel-like shape or tapers towards the conductor connecting passage 8. In a passage region or passage area 43 of the inlet passage 38 which opens into the conductor connecting passage 8, the terminal housing 35 or the first housing part 36 is provided with a notch or recess 44, into which the spring arch 3c of the clamping spring 3 is received. The insertion area for the conductor 2 through the inlet passage 38 into the conductor connecting passage 8 of the connecting terminal 1 is free from edges or other obstacles (impingement points), so that the conductor 2 can be guided unhindered to the contact location 33.

[0084] 16a to 16d show embodiments of levers 6 with coaxial bearing pins 15 of different axial lengths or different pin diameters. The bearing pin facing or assigned to the side wall 5a of the busbar 5 is designated hereinafter by the reference number 15b, and the bearing pin facing or assigned to the cutout 11 in the contact wall 5c of the busbar 5 on the cutout side is designated hereinafter by the reference number 15a.

[0085] In the embodiment shown in Figures 16a and 16b, the bearing pins 15a and 15b have different axial lengths. In the embodiment shown in Figures 16c and 16d, the bearing pins 15a and 15b have different pin diameters. The embodiment of the lever 6 shown in the figures, in which the bearing pins 15a, 15b are not identically configured, is particularly suitable for a parallel arrangement of connectors formed from electrical connection terminals 1 with a contact spacing of 2.5 mm.

[0086] The design of the bearing pins 15a, 15b allows for asymmetrical loads on one side of the lever 6 when the clamping spring 3 is stressed, particularly in tight overall configurations and / or tight contact spacings. The different geometries (length, diameter) of the bearing pins 15a, 15b ensure that they only have to support the load where required. In particular, the opposing bearing pins 15a, 15b can be smaller or thinner than the bearing pin 15b or 15a that is subjected to the heavier loads. This allows for corresponding material savings on the bearing pins 15 that are subjected to the smaller loads.

[0087] In summary, the present invention relates to an electrical connection terminal 1, based on a basic concept, intended for clamping an electrical conductor 2, which comprises a busbar 5 having a side wall 5a, with which an abutment wall 5b and a spaced-apart contact wall 5c are integrally formed, forming a conductor connection passage 8 accessible via an insertion opening 9. The connection terminal 1 further comprises a clamping spring 3, in particular tensioned within the busbar 5, having an abutment leg 3a which abuts or rests against the abutment wall 5b of the busbar 5 and, connected thereto, a clamping leg 3b which has a clamping edge 4 which is guided towards the contact wall 5c of the busbar 5 and forms a clamping point K.

[0088] Furthermore, the present invention relates to an electrical connection terminal 1, according to one embodiment, intended for clamping contact with an electrical conductor, which in addition to or based on the basic concept has an operating member 6, in particular a lever, for pivoting the clamping leg 3b towards its abutment leg 3a against the spring force of the clamping spring 3.

[0089] According to one embodiment, the present invention also relates to an electrical connection terminal 1 intended for clamping contact with an electrical conductor, which in addition to or in addition to the basic concept has a connection contact 7 provided on the bar end of the busbar 5 facing the insertion opening 9, in particular integrally formed therewith.

[0090] The present invention also relates to an electrical connection terminal 1 according to one embodiment, which is intended for clamping contact with an electrical conductor and, in addition to or in accordance with the basic concept, has a two-part terminal housing 35, the housing parts 36, 37 of which are preferably engaged with a busbar 5.

[0091] The claimed invention is not limited to the above-described exemplary embodiments. Rather, other embodiments of the invention can be derived by those skilled in the art within the scope of the disclosed claims without departing from the subject matter of the claimed invention. Furthermore, all individual features that are specifically described in connection with the respective different exemplary embodiments can be combined in other ways within the scope of the disclosed claims without departing from the subject matter of the claimed invention. [Explanation of symbols]

[0092] 1 Electrical connection terminal 2 (electrical) conductor 3 Clamp spring 3a Contact leg 3b Clamp leg 3c Spring Arch 3d arch apex 4 Clamping Edge 5 Busbar 5a side wall 5b Abutting wall 5c contact wall 6 Operating member / swivel lever 6a Main unit 6b Eccentric area 6c Lever area 7 Fork contacts 7a Contact leg / fork leg 7b Contact leg / fork leg 8 Conductor connection passage / conductor connection tunnel 9 Insertion opening 10 Bends / Bends 11 Cutout 12 Operation area 13 Cutout 14 End face 15 Bearing pin 15a Wall bearing pin 15b Cutout side bearing pin 16 Cutout / Notch 17 Turning Contour 18 Spring cutout / cutout 19 Bar cutout / cutout 20 Joint extension 21 Joint opening 22 Bending Area 23 Narrow space 24 Support bracket / clamp bracket 25 Joint gap 26 Bar Section / Leg Section 27 Joint extension 28 Joint Contour 29 Joint materials 30 Joint opening 31 Joint pin 32 Positioning extension 33 Contact points 34 Embossed / curved section 35 Terminal Housing / Housing 36 (first) housing part 36a side wall 36b Free area 37 (Second) housing part 38 (conductor) insertion passage 39a Housing side joint member 39b Housing side joint member 40a Bar side locking contour 40b Bar side locking contour 41a Locking contour on housing side 41b Locking contour on housing side 42a Bar side joint member 42b Bar side joint member 43 Passage area / Aisle area 44 Notch d (spring arch) diameter E (conductor) insertion direction K Clamping point

Claims

1. An electrical connection terminal (1) for clamping contact with an electrical conductor (2), a busbar (5) having a side wall (5a) and an abutment wall (5b) integrally formed therewith and spaced therefrom and a contact wall (5c) defining a conductor connection passage (8) accessible through an insertion opening (9); The electrical connection terminal (1) has a clamp spring (3) that is arranged at least partially within the conductor connection passage (8), and the clamp legs (3b) are connected to the contact legs (3a) via spring arches (3c), and the clamp legs (3b) have clamping edges (4) that are guided between the clamp spring (3) and the busbar (5) toward the contact wall (5c) of the busbar (5) while forming a clamping point (K) for clamping contact of a conductor (2) that is inserted into the conductor connection passage (8) through the insertion opening (9) in a conductor insertion direction (E).

2. The leg length of the abutment leg (3a) of the clamp spring (3) is greater than the leg length of the clamp leg (3b), and / or the leg length of the clamping leg (3b) of the clamping spring (3) is between 50% and 90%, in particular between 55% and 85%, preferably between 60% and 80%, especially preferably (70±5)% of the leg length of the contact leg (3a); and / or The clamping leg (3b) of the clamping spring (3) is in contact with the abutment leg (3a) when the clamping point (K) is in the open position, or a gap or interval is formed between the clamping leg (3b) and the abutment leg (3a), in particular a gap or interval smaller than the diameter (d) of the spring arch (3c) of the clamping spring (3), preferably smaller than half of the diameter (d). characterized in that An electrical connection terminal (1) according to claim 1.

3. the side walls (5a) and the abutment walls (5b) and contact walls (5c) of the busbar (5) form a U-shape; and / or the height of said side wall (5a) is less than 2.5 times the width of said contact wall (5c), and / or the width of the contact wall (5c) of the busbar (5) is between 40% and 60%, in particular (50±5)%, of the height of the side wall (5a); and / or The width of the abutment wall (5b) of the busbar (5) is between 50% and 80% of the height of the side wall (5a), in particular (70±5)%. characterized in that An electrical connection terminal (1) according to claim 1 or 2.

4. the spring arch (3c) of the clamp spring (3) protrudes from the busbar (5) at the insertion opening (9) of the conductor connection passage (8), and / or the spring arch (3c) of the clamp spring (3) protrudes from the abutment wall (5b) and / or the side wall (5a) and / or the contact wall (5c) at the insertion opening (9) of the conductor connection passage (8) of the busbar (5); and / or The spring arch (3c) of the clamping spring (3) is in particular adjacent to or merges into the abutment leg (3a), the arch section of the spring arch (3c) protruding from the abutment leg (3a) on its side facing the clamping leg (3b). characterized in that An electrical connection terminal (1) according to any one of claims 1 to 3.

5. the clamping legs (3b) of the clamping spring (3) have operating areas (12) protruding from the clamping edges (4) in the conductor insertion direction (E) and / or transversely to the conductor insertion direction (E); characterized in that An electrical connection terminal (1) according to any one of claims 1 to 4.

6. the operating area (12) faces in a direction towards the abutment leg (3a) of the clamping spring (3), and / or The operating area (12) is curved, in particular arch-shaped, towards the abutment leg (3a) of the clamping spring (3). characterized in that An electrical connection terminal (1) according to claim 5.

7. the contact wall (5c) of the busbar (5) has a smaller width than the abutment wall (5b), and / or the width of said contact wall (5c) is between 50% and 80%, in particular between 60% and 75%, of the width of said abutment wall (5b); and / or The contact wall (5c) of the busbar (5) has a cutout (11) through which the operating area (12) of the clamping leg (3b) of the clamping spring (3) is accessible transversely to the conductor insertion direction (E) and in the direction of or perpendicular to the clamping edge (4). characterized in that An electrical connection terminal (1) according to any one of claims 1 to 6.

8. the abutment leg (3a) of the clamp spring (3) is provided with a notch or spring cutout (18), and / or a notch or bar cutout (19) is cut into the abutment wall (5b) of the busbar (5); and / or The contact wall (5b) of the busbar (5) is provided with a notch or bar cutout (19) which is aligned with the notch (18) or another notch in the contact leg (3a) of the clamp spring (3) or which in particular overlaps it completely or at least partially. characterized in that An electrical connection terminal (1) according to any one of claims 1 to 7.

9. a joining extension (20) is integrally formed on the abutment leg (3a) of the clamp spring (3); and / or the busbar (5) is provided with a joint opening (21), in particular in the bending region or bending zone (22) between the side wall (5a) and the abutment wall (5b); and / or the busbar (5) is provided with a joint opening (21) having a narrowed portion (23) which acts as a localized and / or point-like abutment, and / or The connection extensions (20) of the abutment legs (3a) of the clamping springs (3) are inserted into the connection openings (21) of the busbars (5), in particular in a form-fit and / or friction-fit manner. characterized in that An electrical connection terminal (1) according to any one of claims 1 to 8.

10. A support bracket (24) having a free end oriented or guided toward the contact wall (5b) of the busbar (5) is integrally formed with the contact wall (5c) of the busbar (5), particularly at the bar end facing the insertion opening (9), and a connecting gap (25) is formed between the support bracket (24) or its free end and the contact wall (5b) of the busbar (5), in which the contact leg (3a) of the clamp spring (3) is accommodated in a particular area. characterized in that An electrical connection terminal (1) according to any one of claims 1 to 9.

11. The abutment wall (5b) of the busbar (5), in particular the bar end facing the insertion opening (9), is integrally formed with a joining extension (27) which is directed or guided towards the contact wall (5c) of the busbar (5). characterized in that An electrical connection terminal (1) according to any one of claims 1 to 10.

12. the connecting extension (27) has a connecting contour (28) that corresponds to the connecting element (29) of the support bracket (24), in particular establishing a form-fit or form-fit connection; and / or The joining extension (27) has a joining contour (28) into which a joining member (29) of the support bracket (24) engages in a form-fitting manner; and / or the joining extension (27) has a joining opening (30) in which a joining pin (31), in particular a shaped joining pin, is received, formed on the bar end of the busbar (5) from the side wall (5a), in particular facing the insertion opening (9), or The joint extension (27) has a joint opening (30) in which a joint pin (31) formed from a connecting contact (7), in particular a fork contact or fork contact leg (7a), provided on the busbar (5), in particular at the bar end facing the insertion opening (9), in particular integrally formed therewith, is accommodated. characterized in that An electrical connection terminal (1) according to claim 11.

13. The side wall (5a) of the busbar (5), particularly in the region of the insertion opening (9), is integrally formed with a positioning extension (32) which projects into the spring arch (3c) of the clamp spring (3) and preferably abuts against the spring arch (3c) and / or the abutment leg (3a). characterized in that An electrical connection terminal (1) according to any one of claims 1 to 12.

14. An electrical connection terminal (1) for clamping contact with an electrical conductor (2), The busbar (5) has a side wall (5a), an abutment wall (5b) integrally formed therewith and forming a conductor connection passage (8) accessible through an insertion opening (9), and a contact wall (5c) spaced therefrom, a clamping spring (3) arranged at least partially within the conductor connection passage (8), with abutment legs (3a) in contact with or abutting against the abutment wall (5b) of the busbar (5) and clamping legs (3b) connected thereto, in particular via spring arches (3c), with clamping edges (4) guided between the clamping spring (3) and the busbar (5) towards the contact wall (5c) of the busbar (5) while forming a clamping point (K) for clamping contact of a conductor (2) inserted into the conductor connection passage (8) through the insertion opening (9) in the insertion direction (E); and The electrical connection terminal (1) has an operating member (6) for pivoting the clamp leg (3b) of the clamp spring (3) toward the abutment leg (3a) thereof.

15. the operating element (6) is mounted for pivotal movement about a rotation axis (D) outside the busbar (5), in particular on the outside and / or on the wall side of the contact wall (5c) facing the clamping point (K); and / or the operating element (6) can be introduced into the conductor connection channel (8) via a cutout (11) or alongside the contact wall (5c) of the busbar (5), and / or The actuating member (6) can abut and / or be coupled with the actuating area (12) of the clamping leg (3b) of the clamping spring (3), which protrudes beyond the clamping edge (4), particularly preferably with a chamfered end face (14). characterized in that An electrical connection terminal (1) according to claim 14.

16. The operating member (6) has a body (6a) with coaxial bearing pins (15) integrally formed on both sides, and / or The operating member (6) is integrally formed with coaxial bearing pins (15a, 15b) having different axial lengths and / or different pin diameters, and / or the operating member (6) has an eccentric section (6b) extending radially relative to the axis of rotation (D), in particular in the form of a downward keel, and / or said operating member (6) having a body (6a) with an axial cutout (16) forming a pivoting contour (17); and / or The operating member (6) has a lever section (6c) extending radially relative to the rotation axis (D). characterized in that An electrical connection terminal (1) according to claim 14 or 15.

17. An electrical connection terminal (1) for clamping contact with an electrical conductor (2) by means of a clamp spring (3) has an operating member (6) for moving the clamp spring (3), The operating member (6) has in particular a body (6a) with integral, preferably coaxial, bearing pins (15) on both sides, and / or the operating element (6) is integrally formed with bearing pins (15a, 15b) of different axial lengths and / or different pin diameters, in particular coaxial with one another; and / or the operating member (6) has an eccentric section (6b) extending radially relative to the axis of rotation (D), in particular in the form of a downward keel, and / or The electrical connection terminal (1) has an operating member (6) having a body (6a) with an axial cutout (16).

18. An electrical connection terminal (1) for clamping contact with an electrical conductor (2), The busbar (5) has a side wall (5a), an abutment wall (5b) integrally formed therewith and forming a conductor connection passage (8) accessible through an insertion opening (9), and a contact wall (5c) spaced therefrom, a clamping spring (3) arranged at least partially within the conductor connection passage (8), with abutment legs (3a) in contact with or abutting against the abutment wall (5b) of the busbar (5) and clamping legs (3b) connected thereto, in particular via spring arches (3c), with clamping edges (4) guided between the clamping spring (3) and the busbar (5) towards the contact wall (5c) of the busbar (5) while forming a clamping point (K) for clamping contact of a conductor (2) inserted into the conductor connection passage (8) through the insertion opening (9) in the insertion direction (E); and The electrical connection terminal (1) has a connection contact (7) provided on the bar end of the busbar (5) facing the insertion opening (9), in particular integrally formed therewith, preferably a fork contact having contact legs (7a, 7b) facing in the insertion direction (E) and forming a contact point (33).

19. An electrical connection terminal (1) for clamping contact of an electrical conductor (2), in particular according to any one of the preceding claims, The busbar (5) has a side wall (5a), an abutment wall (5b) integrally formed therewith and a contact wall (5c) spaced therefrom, the abutment wall (5b) forming a conductor connection passage (8) accessible through an insertion opening (9), a clamping spring (3) arranged at least partially within the conductor connection passage (8), with abutment legs (3a) in contact with or abutting against the abutment wall (5b) of the busbar (5) and clamping legs (3b) connected thereto, in particular via spring arches (3c), with clamping edges (4) guided between the clamping spring (3) and the busbar (5) towards the contact wall (5c) of the busbar (5) while forming a clamping point (K) for clamping contact of a conductor (2) inserted into the conductor connection passage (8) through the insertion opening (9) in the insertion direction (E); and The electrical connection terminal (1) has a two-part terminal housing (35), the housing parts (36, 37) of which are joined to, and preferably locked with, the busbar (5).

20. the housing parts (36, 37) have mating members (39a, 39b) or locking contours (40a, 40b) corresponding to the busbars (5), and / or the first housing part (36) accommodating the busbar (5) and the clamping spring (3) has a first connecting element (39a) or a first locking contour (41a), and the abutment wall (5b) of the busbar (5) has a corresponding locking contour (40a) or a corresponding connecting element (42a); and / or In particular, the second housing part (37) for receiving the connection contacts (7) has a first connecting element (39b) or a first locking contour (41b), and the contact wall (5c) of the busbar (5) has a corresponding locking contour (40b) or a corresponding connecting element (42b). characterized in that 20. An electrical connection terminal (1) according to claim 19.

21. the conductor connection passage (8) is closed by a side wall (36a) of the terminal housing (35), in particular of the first housing part (36) thereof, in the area facing the side wall (5a) of the busbar (5); and / or the terminal housing (35), in particular the first housing part (36) thereof, has a relief area (36b) through which an operating member (6) for operating the clamping spring (3), in particular an eccentric section (6b) thereof, passes or into which the operating member (6), in particular the eccentric section (6b) thereof, penetrates; and / or an actuating element (6) which acts on the clamping spring (3) or on its clamping leg (3b) only in the area facing the side wall (5a) of the busbar (5); and / or the side wall (36a) of the terminal housing (35) and the operating member (6), in particular the eccentric section (6b), form a passage wall that closes the conductor connection passage (8) on the circumferential side, and / or the side wall (36a) of the terminal housing (35) and the operating member (6) aligned with the side wall (36a), in particular the eccentric section (6b) aligned with the side wall (36a), form a passage wall that closes the conductor connection passage (8) on the circumferential side, and / or said terminal housing (35), in particular its first housing part (36), has a preferably funnel-shaped inlet passage (38) for said conductor (2); and / or The terminal housing (35), in particular its first housing part (36), has an inlet passage (38) for the conductor (2), preferably tapered, which opens into the conductor connection passage (8); and / or In the passage area (43) of the inlet passage (38) of the terminal housing (35) which communicates with the conductor connection passage (8), a housing-side cutout (44) is provided for the spring arch (3c) or another spring arch of the clamp spring (3). characterized in that An electrical connection terminal (1) according to claim 19 or 20.

Images