Set of conductor connection terminals and accessory elements

Abstract

The present invention discloses a set consisting of a conductor connection terminal (1) and an accessory element (2) for fixing to the conductor connection terminal (1), in which the conductor connection terminal (1) has a conductor terminal (3) for connecting a conductor and a conductor insertion path (4) for inserting and guiding the conductor into the conductor terminal (3), in which the conductor connection terminal (1) has an accessory insertion path (5) in addition to the conductor insertion path (4), and the accessory element (2) can selectively fix a fixing portion (6) of the accessory element (2) into the accessory insertion path (5).

Description

[Technical field]

[0001] The present invention relates to a set consisting of a conductor connection terminal and an accessory element, the accessory element being provided for fastening to the conductor connection terminal, the conductor connection terminal having a conductor terminal for connecting a conductor and a conductor insertion path for inserting and guiding the conductor into the conductor terminal. [Background technology]

[0002] Conductor connection terminals with conductor terminals for connecting conductors and with conductor insertion paths belong to the prior art. Conductor connection terminals are constantly developing with regard to their handling, their usability and their production costs. By means of optional or complementary accessory elements, conductor connection terminals can expand or improve their functionality and / or handling. Accessory elements can be, for example, additional components that are manufactured and available separately, such as contact elements, test elements or information elements.

[0003] The accessory element can essentially be permanently fixable to the conductor connection terminal. Depending on the embodiment, the accessory element can also be releasably fixable to the conductor connection terminal, for example by a mating and / or non-matting mechanical connection. Releasable fixation in the present application means, in particular, a non-destructively removable connection that allows repeated coupling and decoupling, and in particular also a connection between the accessory element and the conductor connection terminal that can be established and separated without tools. The permanent fixing of the accessory element to the conductor connection terminal can also be performed without tools, for example by a plug-in engagement connection.

[0004] To fasten the accessory elements, the conductor connection terminals usually have the possibility of connection by means of fastening structures provided specifically for the accessory elements. In practice, such fastening structures can increase material and manufacturing costs, especially when there are a large number of different accessory element types, and for example several fastening structures or even additional adapters may be required for each conductor connection terminal, which means that these requirements hinder the uncomplicated construction and use of the conductor connection terminals. Furthermore, appropriate accessory elements must be provided for the various types of conductor connection terminals. Summary of the Invention [Problem to be solved by the invention]

[0005] In light of this, the problem underlying the present invention is to provide a set of conductor connecting terminals and accessory elements, in which the structure of the conductor connecting terminals and the accessory elements is simplified and in which different kinds of conductor connecting terminals also have a high compatibility with different types of accessory elements. [Means for solving the problem]

[0006] This problem is solved by a set of a conductor connecting terminal and an accessory element according to claim 1. Advantageous embodiments are disclosed in the dependent claims, the description and the figures. According to the invention, the conductor connection terminal has, in addition to the conductor insertion passage, an accessory insertion passage in which the accessory element is selectively fixed by a fixing portion of the accessory element.

[0007] Generally speaking, in the context of this application the word "ein / eine" is to be understood as an indefinite article with the meaning of "at least one" and not as a numeral, unless expressly defined otherwise, so that for example an accessory element may also have more than one fastening part fixed to a conductor connection terminal or a conductor connection terminal may have more than one accessory insertion path.

[0008] The accessory insert provides highly variable and versatile fastening possibilities for the accessory element, which has a fastening part that is insertable into the accessory insert and fastenable therein, such that the conductor connection terminal and the accessory element can be held and mechanically fastened to one another by simply inserting the fastening part of the accessory element into the accessory insert, by means of the interlocking of the conductor connection terminal and the accessory element, without the need for, for example, an additional external fastening structure for fastening the accessory element.

[0009] The fixed part of the accessory element and / or the conductor connection terminal may have a plug-in contour for fixing the fixed part in the accessory insertion passage. The plugging profile may be a geometry that allows, facilitates, or improves the plugging of the fastening portion into and / or retention of the fastening portion within the accessory insertion passage.

[0010] The plug-in contour may have or form a pluggable geometric basic shape or a pluggable geometric basic passage shape. The plug-in contour of the fastening part is shaped, for example, by the plug-like basic plug-in shape of the fastening part, which may be, for example, elongated rod-like or strip-like, cylindrical or cuboid-like, or may have a rectangular, trapezoidal or stepped cross section or may be rounded, and which may extend straight or taper in a conical manner.

[0011] The plug-in contour of the conductor connection terminal can be shaped, for example, by a basic passage shape of the accessory insertion passage which is socket-shaped and which, if necessary, also corresponds to the geometric basic plug-in shape of the fastening part, and which can, for example, be elongated tubular, or slit-shaped, cylindrical or cuboidal, or have a rectangular, trapezoidal or stepped cross section or be rounded, and which can run straight or taper, for example so as to be conical.

[0012] Instead of or in addition to the pluggable basic geometric shape, the plug-in profile may have or form a fastening means, for example an engagement means such as an engagement arm, an engagement edge, an engagement projection or an engagement step, which may be made spring-resilient, for example. The plug-in profile may have or form a spring element, such as a fork spring or a spring tongue. The plug-in profile may have or form a protrusion, a stop, an abutment shoulder or a recess, a toothed or corrugated structure or a functional surface, such as an abutment surface or a guide surface, which allows or facilitates the insertion or retention of the fastening part in the accessory insertion passage. The plug-in profile may form a guide profile, for example a guide groove or a guide pin.

[0013] Depending on the plug-in profile and / or the configuration of the fastening means, the accessory element may be permanently or releasably fastened to the conductor connection terminal. For example, a resilient engaging projection or a small undercut of the engaging projection by the engaging edge may provide a releasable fastening, whereas a relatively rigid engaging projection or a relatively large undercut of the engaging projection by the engaging edge may allow a permanent fastening.

[0014] The plug-in contour of the conductor connection terminal can be located in the accessory insertion passage, for example molded or formed in the passage wall of the accessory insertion passage, but it is also conceivable that the plug-in contour is located in another component of the conductor connection terminal, for example in a current transmission rail provided for a conductor terminal in the conductor connection terminal.

[0015] It is conceivable, for example, that the accessory insertion path leads into a power transmission rail provided for a conductor terminal in the conductor connection terminal or that the power transmission rail projects in some sections into the accessory insertion path and that the power transmission rail has or forms a plug-in contour in this region. The plug-in contour of the power transmission rail can be formed, for example, in the form of a contact slot, which can accommodate the plug-in contour of the fastening part. The plug-in contour on the power transmission rail is also suitable, for example, for accessory elements which are formed as electrical contact elements and can be electrically connected to the power transmission rail. However, accessory elements which are formed differently and are not formed as electrical contact elements can also project with their fastening parts into the plug-in contour of the power transmission rail, which is made, for example, as a contact slot, and can be mechanically supported in this plug-in contour. This makes it possible to reliably avoid tilting, wobbling or pendulum movements of the accessory element inserted into the accessory insertion path and to reliably hold the accessory element in the conductor connection terminal. The aforementioned plug-in contours allow simple and reliable insertion and fastening of the accessory element in the conductor connection terminal in a wide variety of individual ways.

[0016] If the fastening part of the accessory element and the conductor connection terminal each have at least one plug-in contour, these plug-in contours can be formed correspondingly to one another, where "correspondingly" means, inter alia, that the plug-in contour of the fastening part is adapted to the plug-in contour of the conductor connection terminal and can mechanically interact with the plug-in contour of the conductor connection terminal, for example forming a mating and / or non-mating connection.

[0017] The corresponding plug profiles can also be considered as plug profiles having corresponding mating plug profiles, which can be engagement profiles, such as engagement protrusions, that interact with corresponding mating plug profiles, such as engagement edges.

[0018] The corresponding plug-in contours may, for example, have positive and negative shapes that match each other, where the positive shapes are accompanied by material additions, such as in the case of pins or protrusions, and the negative shapes by corresponding material cut-outs, such as in the case of holes, recesses or grooves, i.e. the positive and negative shapes may geometrically interlock. The corresponding plug-in contours may improve the retention of the accessory element in the conductor connection terminal.

[0019] The plug-in contours can be made of a predominantly conductive material, for example metal, or of a predominantly non-conductive material, for example plastic. The plug-in contours with predominantly conductive material can be, for example, on the power transmission rail or on the plug-in tongue of the accessory element and can, for example, simultaneously perform an electrical contacting function, whereas the plug-in contours with predominantly non-conductive material can, for example, be part of the insulator housing of the conductor connection terminal or of the accessory element and are provided solely for the mechanical fastening of the accessory element to the conductor connection terminal.

[0020] It is conceivable that the fastening part and / or the conductor connection terminal of the accessory element have at least one plug-in profile made mainly of an electrically conductive material and at least one plug-in profile made mainly of an electrically non-conductive material. For example, the metallic plug-in tongue of the accessory element with the plug-in profile may have an insulating coating in some sections, which insulating coating also has or forms a plug-in profile, for example, the assigned conductor connection terminal may have a metallic current rail with a mating plug-in profile for the metallic plug-in tongue of the accessory element and an accessory insertion path with a path wall made of insulating material with a mating plug-in profile for the insulating coating of the accessory element.

[0021] The fastening part of the accessory element can be at least partially elastically deformable, for example it can be configured as a spring element or have a spring element such as a spring tongue or a fork spring, by means of the elastically deformable spring element the fastening part of the accessory element can abut with a spring force against an inner surface of the accessory insertion channel or against another component of the conductor connection terminal, for example a current transmission rail, so that a secure holding of the accessory element in the conductor connection terminal is ensured.

[0022] The spring element can be formed, for example, as a fork spring with spring arms extending parallel to one another, which allows a symmetrical transmission of forces to the accessory insertion passage or, for example, to a power transmission rail on which the fork spring can be attached or plugged in. If the accessory element is formed as an electrical contact element, this also improves the electrical contact between the power transmission rail and the accessory element.

[0023] The conductor connection terminal may have an insulator housing, which may have a top surface to which an actuating element, such as for example an actuating lever of the conductor connection terminal, may be assigned. The insulator housing may have a bottom surface opposite the top surface, which may form, for example, a support surface for the conductor connection terminals. The top and bottom surfaces of the insulator housing may be interconnected by a housing side wall.

[0024] The accessory passage may have an accessory insertion opening. The accessory insertion passage may lead to an accessory insertion opening in a housing side wall of the conductor connection terminal. The fixed portion of the accessory element is insertable into the accessory insertion passage through the accessory insertion opening.

[0025] The conductor insertion path of the conductor connection terminal may have a conductor insertion opening. The conductor insertion path may lead to a conductor insertion opening in a housing side wall of the conductor connection terminal. A conductor provided for connection in the conductor connection terminal is insertable through the conductor insertion opening into the conductor insertion path. The accessory insertion opening may be arranged in the same housing side wall as the conductor insertion opening of the conductor connection terminal. This improves the accessibility and thus the ease of use of the conductor connection terminal with the accessory element. The accessory insertion opening and the conductor insertion opening may be in a common plane.

[0026] The accessory insertion opening can be arranged in the housing side wall closer to the underside of the insulator housing than the conductor insertion opening, so that, for example, with respect to the underside of the insulator housing of the conductor connection terminal formed as a support surface for the conductor connection terminal, the accessory insertion opening can be below the conductor insertion opening, which ensures that the insertion of the conductor into the conductor connection terminal is not hindered or prevented by the accessory element fixed to the conductor connection terminal.

[0027] The conductor insertion path may extend in the insertion direction of the fastening part of the accessory element substantially parallel to the accessory insertion path, as seen in the plug-in direction of the conductor. The plug-in directions of the conductor and the fastening part of the accessory element may be parallel to each other and aligned in the direction of the conductor connection space inside the conductor connection terminal. The central longitudinal axis of the accessory insertion path may extend parallel to the central longitudinal axis of the conductor insertion path. However, embodiments are also conceivable in which the accessory insertion path and the conductor insertion path are at a virtual angle to each other or extend at an angle to each other, in which case the angle may be between 0 and 90°.

[0028] The accessory insertion passage may have a smaller cross section than the conductor insertion passage. A smaller cross section may in particular refer to a smaller cross-sectional area caused by a smaller diameter or, in the case of the same or smaller width or height, by a smaller width or height. The accessory insertion openings assigned to the accessory insertion passage may also have a smaller cross section than the conductor insertion openings assigned to the conductor insertion passage. This makes it easier for the user to visually identify in which opening or in which passage the conductor or the fixed part of the accessory element should be inserted.

[0029] The accessory insertion passage may have a substantially rectangular, trapezoidal or stepped or even rounded cross section. The accessory insertion passage may lead to a substantially rectangular or rounded accessory insertion opening. The specific design of the conductor insertion opening and the accessory insertion opening or the respective assigned passage may be based on visual or mechanical coding, so that it is illustrated or technically possible that the conductors are inserted and / or held only in the conductor insertion passage and that the fixed part of the accessory element is inserted and / or held only in the accessory insertion passage. Visual coding may be performed, for example, by colored markings provided on the fixed part of the accessory element and on the accessory insertion opening. Mechanical coding may also be performed, for example, by different geometric cross-sectional shapes of the accessory insertion opening and the conductor insertion opening.

[0030] The set may have a number of conductor connection terminals which may be arranged in a row. By may be arranged in a row it is meant, inter alia, that the conductor connection terminals may be arranged adjacent to one another or in succession. In this respect, the conductor connection terminals may be arranged in a row such that the housing side walls which do not have a conductor insertion opening abut against each other. The conductor connection terminals which may be arranged in a row may have a similar or identical structure or may also have similar or identical dimensions. In principle, however, it is also conceivable that the rows are made up of conductor connection terminals of different structures or different dimensions.

[0031] The distance between the two opposite housing side walls of the insulator housing of the conductor connection terminal that do not have a conductor insertion opening is referred to in particular as the width of the conductor connection terminal. The dimension of the accessory element fixed to the conductor connection terminal that runs parallel to the width of the conductor connection terminal is referred to in particular as the width of the accessory element.

[0032] The accessory element may have a width less than, equal to, or greater than the conductor connection terminal. If a number of conductor connection terminals are in a row and an accessory element having a width greater than the width of a single conductor connection terminal extends parallel to these conductor connection terminals, the accessory element may be securable in at least one accessory insertion passage of one of these conductor connection terminals by means of a fastening portion.

[0033] It is also conceivable that the accessory element has a number of mutually spaced fastening parts, which are respectively insertable into the accessory insertion passage of the conductor connection terminal or into a number of accessory insertion passages of at least one conductor connection terminal arranged in a row with respect to each other. In this regard, the spacing between the fastening parts can substantially correspond to the spacing between the accessory insertion passages of the conductor connection terminals arranged in a row with respect to each other or a multiple of this spacing. In this way, the accessory element with the fastening parts can be inserted into the accessory insertion passages of the conductor connection terminals arranged in a row with respect to each other and fixed there. This is advantageous, for example, if the accessory element is a jumper or a strain relief unit which is provided for use with the conductor connection terminals arranged in a row with respect to each other.

[0034] One or more of the fastening parts may have a smaller cross section than the respectively assigned accessory insertion passage. This may allow for larger manufacturing tolerances and improved compatibility of the conductor connection terminal and the accessory element with various types. In this way, the accessory element may be manufactured as one and the same common part for various types of conductor connection terminals in particular. A potentially initially reduced retention of the fastening parts with a smaller cross section in the assigned accessory insertion passage may also be avoided by additional plug-in contours, such as engagement projections on the fastening parts, or by the spacing of the fastening parts being designed so that they can be supported in different accessory insertion passage areas of the conductor connection terminal. This results in mating and / or non-mating connections across several conductor connection terminals. For example, if there are two fastening parts in two conductor connection terminals, one fastening part may abut against the left edge area of ​​the accessory insertion passage assigned to it and the other fastening part may abut against the right edge area of ​​the accessory insertion passage assigned to it, opposite to the aforementioned left edge area, or vice versa. This limits one degree of freedom of the fixing parts, so that the interaction of these fixing parts inserted into the accessory insertion passages simultaneously produces mating and / or non-mating connections for these conductor connection terminals. If the fixing parts are made elastically deformable, the support of these fixing parts can be even further improved even across multiple conductor connection terminals, and the holding force or spring force of the fixing parts can be increased.

[0035] As already mentioned above, the conductor connection terminal may have a power transmission rail. The fastening portion of the accessory element inserted into the accessory insertion path may, depending on the embodiment and depending on the type of accessory element, terminate before the power transmission rail, may terminate at the power transmission rail or may be fixable to the plug-in contour of the power transmission rail. For example, an accessory element formed as an information carrier may have a fastening portion of a length that does not reach the power transmission rail when inserted into the accessory insertion path, whereas an accessory element made as a jumper may have a fastening portion of a length that can be fixed to the plug-in contour of the power transmission rail. However, it is also conceivable that an accessory element formed as an information carrier may have a fastening portion of a length that can be fixed to the plug-in contour of the power transmission rail, so that it can be held even more reliably in the accessory insertion path. In contrast, an accessory element made, for example, as a test element may have a fastening portion of a length that terminates at the power transmission rail but does not have to be mechanically fixable to the power transmission rail.

[0036] The fastening part may, depending on the embodiment and depending on the type of accessory element, be a mechanical fastening part or an electromechanical fastening part with an electrical contact. As an electromechanical fastening part, the fastening part may also perform an electrical contacting function and establish an electrical connection to the power transmission rail, for example between two or more mutually aligned conductor connection terminals.

[0037] The accessory element may be, for example, a strain relief unit, which serves for strain relief of the conductor connected to the conductor connection terminal and may be formed, for example, as a strain relief plate having fastening means or a through-hole for the conductor. The accessory element formed as a strain relief unit may in particular be permanently fastenable to the conductor connection terminal, in which respect a removable fastening at the conductor connection terminal for the strain relief unit is not excluded.

[0038] The accessory element may also be an information carrier, such as, for example, a sign holder or label holder, which serves, for example, to assign the connected conductors with letters. The accessory element configured as an information carrier may in particular be removably fastenable to the conductor connection terminal, in which case a permanent fastening at the conductor connection terminal for the information carrier is not excluded.

[0039] The accessory element may be a contact element, for example a jumper or a PE contact. Such a contact element is used for establishing an electrical connection between conductor connection terminals or for providing a protective earth. An accessory element formed as a jumper may in particular be removably fixable to the conductor connection terminal, in which case a permanent fixation for the jumper at the conductor connection terminal is not excluded. An accessory element formed as a PE contact may in particular be permanently fixable to the conductor connection terminal, in which case a removably fixation for the PE contact at the conductor connection terminal is not excluded.

[0040] Depending on the type of accessory element, the strain relief unit may have one fixing part for fixing to one conductor connection terminal or multiple fixing parts for fixing to one or multiple conductor connection terminals in a row with each other.

[0041] It is also conceivable that an accessory element may perform several accessory functions, for example an accessory element may be both a strain relief unit and an information carrier at the same time. The set may have a number of identical or different conductor connection terminals as well as a number of identical or different accessory elements, whereby various predefined combinations of conductor connection terminals and accessories can be organized depending on the product solution and field of use.

[0042] The set may have an adapter part with a fastening part, by means of which an accessory element without a fastening part or an accessory element with an incompatible fastening part can be indirectly fastened in the accessory insertion channel of the conductor connection terminal. An adapter part can be retrofitted to an already existing accessory element for a set according to the invention, so that an existing accessory element, but which is not compatible with the conductor connection terminal, can also be fastened to the conductor connection terminal.

[0043] According to an embodiment, the accessory element may be releasably fixable to the conductor connection terminal, for example by a mating and / or non-mating mechanical connection, whereby releasable fixation in the present application refers in particular to a non-destructively removable connection, in particular to a connection between the accessory element and the conductor connection terminal that can be established and separated without tools, in order to allow repeated coupling and decoupling.

[0044] According to an embodiment, the conductor connection terminal may have two or more accessory insertion channels. If there are several accessory insertion channels, these may be, for example, on the same side or side wall of the conductor connection terminal or on different, for example mutually opposite, sides or side walls of the conductor connection terminal. Several accessory insertion channels of the conductor connection terminal may, for example, be located substantially on opposite sides and may run opposite one another or parallel to one another. In several accessory insertion channels, the same or different accessory elements can be inserted, so that a bridge chain across several conductor connection terminals can be realized, for example by means of accessory elements made as jumpers, or on one side of the conductor connection terminal, an accessory element formed as an information carrier can be inserted into an accessory insertion channel and on the opposite side of this conductor connection terminal, an accessory element formed as a jumper can be inserted into a further accessory insertion channel. On mutually opposite sides of the conductor connection terminal, accessory elements formed, for example, as strain relief elements can also be inserted into accessory insertion channels facing one another.

[0045] The invention is explained in more detail below on the basis of one exemplary embodiment and with the aid of the attached drawings, in which: [Brief description of the drawings]

[0046] [Figure 1a] FIG. 2 is a schematic perspective view of two conductor connection terminals with fastened accessory elements according to a first embodiment; [Figure 1b] FIG. 2 is a schematic perspective view of an accessory element according to a first embodiment; [Figure 1c] 1b shows a schematic cross-sectional view from below of the conductor connection terminal shown in FIG. 1a with an accessory element fixed thereto according to a first embodiment; [Figure 1d] 1b shows a schematic cross-sectional side view of one of the conductor connection terminals shown in FIG. 1a with an accessory element fixed thereto according to a first embodiment; [Figure 2a] FIG. 13 is a schematic perspective view of six conductor connection terminals with two accessory elements fixed thereto according to a second embodiment; [Figure 2b] FIG. 2 is a schematic perspective view of an accessory element according to a second embodiment; [Figure 2c] 2b shows three schematic cross-sectional views from below of the conductor connection terminal shown in FIG. 2a with an accessory element fixed thereto according to a second embodiment; [Figure 2d] 2b shows a schematic cross-sectional side view of one of the conductor connection terminals shown in FIG. 2a with an accessory element fixed thereto according to a second embodiment; [Figure 3a] FIG. 11 is a schematic perspective view of two conductor connection terminals with fastened accessory elements according to a third embodiment; [Figure 3b] FIG. 13 is a schematic perspective view of an accessory element according to a third embodiment. [Figure 3c] 3b is a schematic side view of the conductor connection terminal shown in FIG. 3a with an accessory element fixed thereto according to a third embodiment; [Figure 3d] 3b shows a schematic cross-sectional view from below of the conductor connection terminal shown in FIG. 3a with an accessory element fixed thereto according to a third embodiment; [Figure 3e]3b shows a schematic cross-sectional side view of one of the conductor connection terminals shown in FIG. 3a with an accessory element fixed thereto according to a third embodiment; [Figure 4a] FIG. 11 is a schematic perspective view of a four conductor connection terminal with two accessory elements fixed thereto according to a fourth embodiment; [Figure 4b] FIG. 13 is a schematic perspective view of an accessory element according to a fourth embodiment; [Figure 4c] FIG. 13 is a schematic perspective view of an accessory element plugged into two power transmission rails of a conductor connection terminal according to a fourth embodiment; [Figure 4d] 4b shows a schematic cross-sectional side view of one of the conductor connection terminals shown in FIG. 4a with an accessory element fixed thereto according to a fourth embodiment; [Figure 5a] FIG. 10 is a schematic perspective view of two conductor connection terminals with fastened accessory elements according to a fifth embodiment; [Figure 5b] FIG. 13 is a schematic perspective view of an accessory element according to a fifth embodiment. [Figure 5c] FIG. 10 is a schematic perspective view of an accessory element plugged into the transmission rail of a conductor connection terminal according to a fifth embodiment; [Figure 5d] 5b shows a schematic cross-sectional view from below of the conductor connection terminal shown in FIG. 5a with an accessory element fixed thereto according to a fifth embodiment; [Figure 5e] 5b shows a schematic cross-sectional side view of one conductor connection terminal shown in FIG. 5a with an accessory element fixed thereto according to a fifth embodiment; [Figure 6a] FIG. 13 is a schematic perspective view of two conductor connection terminals with attached elements according to a sixth embodiment; [Figure 6b] FIG. 13 is a schematic perspective view of an accessory element according to a sixth embodiment. [Figure 6c] FIG. 13 is a schematic perspective view of an accessory element plugged into the transmission rail of a conductor connection terminal according to a sixth embodiment; [Figure 6d] 6b shows a schematic perspective view from below of the conductor connection terminal shown in FIG. 6a with an accessory element fixed thereto according to a sixth embodiment; FIG. [Figure 6e]6b shows a schematic cross-sectional view from below of the conductor connection terminal shown in FIG. 6a with an accessory element fixed thereto according to a sixth embodiment; [Figure 6f] 6b is a schematic cross-sectional side view of one of the conductor connection terminals shown in FIG. 6a with an accessory element fixed thereto according to a sixth embodiment; FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0047] 1a to 6f show a set (or pair) according to the invention with a conductor connection terminal 1 and an attachment (or accessory) element 2 according to various embodiments. All the diagrammatically depicted exemplary embodiments show a set with several conductor connection terminals 1 for better illustration, in which respect the invention can also be realised with only one conductor connection terminal 1. The figures show the conductor connection terminals 1 in a regular row with respect to each other, i.e. arranged next to each other in succession and can be mechanically connected to each other by connecting means not described or shown. The conductor connection terminals 1 selected for the exemplary embodiments are bidirectional terminals with a symmetrical structure and can be connected to each other in the conductor plug-in direction R. L 1d, 2d, 3e, 4d, 5e and 6f, which are arranged opposite each other, conductor insertion passages 4 located on opposite sides and facing each other, and accessory insertion passages 5 located on opposite sides and facing each other. The conductor connection portions 3 serve to electrically connect electrical conductors, not shown, to a power transmission rail 9. For reasons of clarity, reference numbers are primarily given only to the symmetrical half of the conductor connection terminal 1, in which the accessory elements 2 are fixed.

[0048] The conductor connection terminal 1 has an insulator housing 11 for protecting the conductor connection parts 3 from environmental influences and as a touch protection for the user of the conductor connection terminal 1. The insulator housing 11 has an upper surface 12 on which an actuating lever 15 can be present, which is assigned to each one of the conductor connection parts 3 of the conductor connection terminal 1 and can be used to actuate a clamping spring of the conductor connection part 3, which in the exemplary embodiment is formed as a spring clamp terminal. The insulator housing 11 has a lower surface 13, which can be a support surface of the conductor connection terminal 1. The lower surface 13 is on the opposite side to the upper surface 12. The upper surface 12 and the lower surface 13 of the insulator housing 11 are interconnected by a housing side wall 14. The housing side wall 14, which is provided for inserting conductors into the conductor connection parts 3 in the conductor connection terminal 1, is provided with a conductor insertion opening 8 adjacent to the conductor insertion path 4. In the presented exemplary embodiment, the same housing side wall 14 as the conductor insertion opening 8 is provided with accessory insertion openings 7, which are respectively adjacent to the accessory insertion paths 5. The accessory insertion opening 7 and the adjacent accessory insertion channel 5 are capable of receiving the fastening part 6 of the accessory element 2 and are fastenable therein.

[0049] The accessory insertion opening 7 is arranged closer to the underside 13 of the insulator housing 11 than the conductor insertion opening 8. As can be seen, for example, in Figures 1d, 2d, 3e, 4d, 5e and 6f, the conductor insertion path 4 is aligned in the conductor insertion direction R L 2, the insertion direction R of the fastening part 6 of the accessory element 2 is substantially parallel to the accessory insertion path 5. B The insertion direction R of the conductor and the fixing part 6 L and R B are parallel and in the same orientation in the exemplary embodiment shown.

[0050] Figures 1a to 1d show a set according to the invention according to a first embodiment. Figure 1a shows two conductor connection terminals 1 to which one accessory element 2 is fixed. The conductor connection terminals 1 have similar dimensions and are in a row with one another. In the version of the conductor connection terminal 1 shown in Figures 1a to 1d, the cross-sections of the conductor insertion openings 8 and the conductor insertion channels 5 are designed and shaped in such a way that two conductors can be inserted side-by-side into the conductor connection terminal 1.

[0051] According to a first embodiment, exemplarily shown in Fig. 1a-1d, the accessory element 2 is a strain relief unit 16. The strain relief unit 16 serves for strain relief of the conductor connected to the conductor connection 3 and is formed here as a strain relief plate, for example with a through-hole for a cable tie or the like to be fastened. As can be seen in Fig. 1c, the width B Z is the width B of a single conductor connection terminal 1 L The accessory elements 2 extend parallel to the conductor connection terminals 1 in a row with respect to each other. As this is exemplarily shown in Fig. 1a and Fig. 1c for two conductor connection terminals 1 in a row with respect to each other, the strain relief unit 16 has a plurality of, according to this exemplary embodiment three, fastening parts 6 which are insertable into the accessory insertion passages 5 of the conductor connection terminals 1 in a row with respect to each other and fastening therein. The fastening parts 6 are then arranged at a distance A from each other which is adapted to their respective accessory insertion passages 5 for the conductor connection terminals 1 in a row with respect to each other, as shown in Fig. 1b. B , i.e., the spacing A substantially corresponds to the spacing between the accessory insertion passages 5 of the conductor connection terminals 1 arranged in a row. B 1 and protrudes from the strain relief unit 16 .

[0052] As can be seen, for example, in Fig. 1c, the fixed part 6 has an insertion contour 10 with a substantially trapezoidal basic plug-in shape 19 in cross-section, and the accessory insertion passage 5 has a basic passage shape 20 which corresponds to the trapezoidal basic plug-in shape 19 of the fixed part 6 and which is stepped (in other words stepped), rectangular or trapezoidal in cross-section depending on the steps, and has several steps (in other words shoulders) against which the basic plug-in shape 19 of the fixed part 6 can abut. The fixed parts 6 further have, as can be seen in Fig. 1b, two spring-resilient engagement arms 22 which protrude from each fixed part 6 on opposite sides of the fixed part 6 from a fixed side wall of the fixed part 6. The fixed side wall of the fixed part 6 is a surface that interconnects the fixed upper surface of the fixed part 6 that faces toward the upper surface 12 of the insulator housing 11 of the conductor connection terminal 1 when the fixed part 6 is fixed within the conductor connection terminal 1, and the fixed lower surface that faces toward the lower surface 13 of the insulator housing 11 of the conductor connection terminal 1 when the fixed part 6 is fixed within the conductor connection terminal 1.

[0053] The engagement arms 22 are the fastening means 21 of the fastening part 6. The fastening part 6 is partially elastically deformable in the region of their spring-resilient engagement arms 22. The spring-resilient engagement arms 22 engage with the rear side of the fastening means 21 corresponding to the engagement arms 22 and formed as engagement edges 23, by inserting the fastening part 6 into the accessory insertion channel 5, and abut against the channel wall of the accessory insertion channel 5. Due to the trapezoidal cross-sectional basic plug-in shape 19 with the corresponding stepped basic channel shape 20 and the additional fastening means 21 as engagement arms 22 of the fastening part 6 and as engagement edges 23 of the accessory insertion channel 5, the strain relief unit 16, whose fastening part 6 has been inserted into the conductor connection terminal 1, is intuitively coupled with the conductor connection terminal 1 and reliably held there. Removal of the accessory element 2 formed as a strain relief unit from the accessory insertion channel 5 is not envisaged in this exemplary embodiment, but is not essentially excluded for the accessory element 2 formed as a strain relief unit.

[0054] The plug-in contour 10 of the accessory element 2 is, in the exemplary embodiment according to the first embodiment shown in Figs. 1a-1d, mainly made of a non-conductive material, in particular an insulating material, for example a plastic. The strain relief unit 16 is therefore fixed purely mechanically to the conductor connection terminal 1 and does not perform any additional electrical contacting function. As can be seen in Fig. 1c, the fixing part 6 is spatially aligned in the plug-in direction R into the accessory insertion channel 5. B 4c , it terminates short of the transmission rail 9 and does not touch it. Instead, however, the fixing part 6 could be extended in such a way that a part of the fixing part 6 protrudes into a contact slit 27 of the transmission rail 9 and is additionally fixed there, as is depicted, for example, diagrammatically for an accessory element 2 formed as a jumper as shown in FIG. 4c .

[0055] 2a-2d show a set according to the invention according to a second embodiment. FIG. 2a shows six conductor connection terminals 1, three of which have similar dimensions and differ from the remaining three conductor connection terminals 1. A common accessory element 2 is removably fixed to three mutually similar conductor connection terminals 1 in a row. In the form of the conductor connection terminal 1 shown in FIG. 2a, the cross-sections of the conductor insertion openings 8 and conductor insertion paths 5 of the three conductor connection terminals 1 on the front side in the figure, i.e. facing the viewer, are designed and formed in such a way that two conductors can be inserted side by side into the front conductor connection terminal 1. The three conductor connection terminals 1 on the rear side in the figure, i.e. facing away from the viewer, are made narrower and have conductor insertion openings 8 and conductor insertion paths 5 whose cross-sections are intended or suitable for accommodating rather a single conductor.

[0056] According to a second embodiment, exemplarily shown in Figures 2a to 2d, the accessory element 2 is an information carrier 17 which is provided as a common label holder for three mutually aligned conductor connection terminals 1. The information carrier 17 serves, for example, to assign the conductors to be connected by letters.

[0057] As can be seen in FIG. 2c, the width BZ is the width B of a single conductor connection terminal 1 L The accessory element 2 extends parallel to the aligned conductor connection terminals 1. The information carrier 17 has a plurality of, in this exemplary embodiment three, fastening parts 6 which are insertable into the accessory insertion passages 5 of the aligned conductor connection terminals 1 and fastenable there, as this is shown exemplarily for three aligned conductor connection terminals 1 in FIGS. 2a and 2c.

[0058] These fixing parts 6 are then arranged at a distance A from each other, which is suitable for the respective accessory insertion passages 5 of the conductor connection terminals 1, which may be arranged side by side, as shown in FIG. 2b. B , i.e., the spacing A substantially corresponds to the spacing between the accessory insertion passages 5 of the conductor connection terminals 1 arranged in a row. B 2a , the fastening parts 6 of the accessory element 2 have a cross section equivalent to the assigned accessory insertion passage 5. For the conductor connection terminal 1 shown in the back in FIG. 2a, the fastening parts 6 of the accessory element 2 have a cross section smaller than the assigned accessory insertion passage 5. Due to this form of the fastening parts 6, the information carrier 17 shown in FIG. 2a is compatible with both types of conductor connection terminal 1, despite the use of the same common parts. In FIG. 2c, which shows a cross section from below of the front conductor connection terminal 1 shown in FIG. 2a, it is clear that these fastening parts 6 are supported in different accessory insertion passage areas of the conductor connection terminal 1. This results in a mating and / or non-matting connection over the three conductor connection terminals 1, which provides a sufficient retention of the fastening parts 6 in the accessory insertion passage 5. Moreover, the retention of the fixing part 6 in the accessory insertion passage 5 is improved by additional plug-in contours 10 in the form of engagement protrusions 24 as fixing means 21, which can engage behind additional plug-in contours 10 formed in the form of engagement shoulders 25 as fixing means 21 of the accessory insertion passage 5.

[0059] As can be seen, for example, in FIG. 2c, the fixed part 6 has an insertion contour 10 with a substantially rectangular basic insertion shape 19 in cross section, and the accessory insertion passage 5 has a stepped, rectangular or trapezoidal cross section depending on the steps and a basic passage shape 20 with multiple steps which corresponds to the rectangular basic insertion shape 19 of the fixed part 6 and against which the basic insertion shape 19 of the fixed part 6 can abut.

[0060] The fastening parts 6, as is clear in figures 2b and 2d, furthermore have respective engagement projections 24 which, as can be seen in particular in figure 2d, protrude from the respective fastening part 6 with an upper fastening surface which faces towards the upper surface 12 of the insulator housing 11 in the fixed state of the accessory element 2 in the conductor connection terminal 1, and with a lower fastening surface which is on the opposite side to the upper fastening surface and faces towards the lower surface 13 of the insulator housing 11 in the fixed state of the accessory element 2 in the conductor connection terminal 1. The fastening parts 6 may be partially elastically deformable in the region of their engagement projections 24. When the fastening parts 6 are inserted into the accessory insertion passages 5, the engagement projections 24 engage behind the fastening means 21 which are formed as engagement shoulders 25 and correspond to the engagement projections 24. Due to the rectangular cross-section of the basic plug-in shape 19 together with the corresponding stepped basic passage shape 20 and the additional fastening means 21 as an engaging protrusion 24 of the fixing part 6 and as an engaging shoulder 25 of the accessory insertion passage 5, the information carrier 17 inserted into the conductor connection terminal 1 by means of the fixing part 6 is intuitively releasably connected to the conductor connection terminal 1 and securely held there.

[0061] In the exemplary embodiment according to the second embodiment shown in Fig. 2a-2d, the plug-in contour 10 of the accessory element 2 is mainly made of a non-conductive material, in particular an insulating material, for example a plastic. The information carrier 17 is therefore fixed purely mechanically to the conductor connection terminal 1 and does not perform any additional electrical contacting function. As can be seen, for example, in Fig. 2c, the fastening part 6 is spatially aligned in the plug-in direction R into the accessory insertion channel 5. B4c , it terminates short of the transmission rail 9 and does not touch it. Instead, however, the fixing part 6 could also be extended in such a way that a part of the fixing part 6 protrudes into a contact slit 27 of the transmission rail 9 and is additionally fixed there, as is depicted, for example, diagrammatically for an accessory element 2 formed as a jumper as shown in FIG. 4c .

[0062] Figures 3a to 3e show a set according to the invention according to a third embodiment. Figure 3a shows two conductor connection terminals 1, the rear one facing away from the viewer has an accessory element 2 removably fixed thereto. The conductor connection terminals 1 have similar dimensions and are arranged in a row with one another. In the version of the conductor connection terminal 1 shown in Figures 3a to 3e, the cross-sections of the conductor insertion opening 8 and the conductor insertion passage 5 are designed and shaped in such a way that two conductors can be inserted side-by-side into the conductor connection terminal 1.

[0063] According to a third embodiment, exemplarily shown in Figures 3a to 3e, the accessory element 2 is an information carrier 17 which is provided as an individual sign holder for the conductor connection terminal 1. The information carrier 17 serves, for example, to assign the conductors to be connected by letters.

[0064] As can be seen in FIG. 3c, the width B Z is the width B of a single conductor connection terminal 1 L3a and 3c to 3e, the information carrier 17 has a fastening part 6 which is inserted into the accessory insertion passage 5 of the conductor connection terminal 1 and fixed there. As is evident from FIG. 3d, the fastening part 6 has a smaller cross section than the assigned accessory insertion passage 5. Due to this form of the fastening part 6, the information carrier 17 shown in FIGS. 3a to 3e is compatible with several forms of the conductor connection terminal 1, even with the use of the same common parts. The retention of the fastening part 6 in the accessory insertion passage 5 is ensured by an additional plug-in contour 10 in the form of an engagement projection 24, which can engage in an additional plug-in contour 10 of the accessory insertion passage 5 which is formed as an engagement shoulder 25. In addition to this, however, the fastening part 6 could also be extended in such a way that a part of the fastening part 6 projects into a contact slit 27 of the power rail 9 and is additionally fixed there, as is depicted, for example, diagrammatically for an accessory element 2 formed as a jumper as shown in FIG. 4c.

[0065] As can be seen, for example, in FIG. 3d, the fixed part 6 has an insertion contour 10 with a substantially rectangular basic insertion shape 19 in cross section, and the accessory insertion passage 5 has a stepped, rectangular or trapezoidal cross section depending on the steps and a basic passage shape 20 with multiple steps which corresponds to the rectangular basic insertion shape 19 of the fixed part 6 and against which the basic insertion shape 19 of the fixed part 6 can abut.

[0066] The fastening parts 6, as is clear in Figures 3b and 3e, further have engaging projections 24, which, as can be seen in particular in Figure 3e, protrude from the respective fastening part 6 with an upper fastening surface facing the upper side 12 of the insulator housing 11 in the state where the accessory element 2 is fixed in the conductor connection terminal 1, and with a lower fastening surface, which is on the side opposite to the upper fastening surface and faces the lower side 13 of the insulator housing 11 in the state where the accessory element 2 is fixed in the conductor connection terminal 1. The fastening parts 6 can be partially elastically deformable in the region of their engaging projections 24. By inserting the fastening parts 6 into the accessory insertion passages 5, the engaging projections 24 engage into the fastening means 21 which are formed as engaging shoulders 25 and correspond to the engaging projections 24. The information carrier 17, whose fastening parts 6 have been inserted into the conductor connection terminal 1, is intuitively detachably connected to the conductor connection terminal 1 by the engaging projections 24 and is reliably held there.

[0067] The plug-in contour 10 of the accessory element 2 of the conductor connection terminal 1 is, in the exemplary embodiment according to the third embodiment shown in Figs. 3a-3e, mainly made of a non-conductive material, in particular an insulating material, for example a plastic. The information carrier 17 is therefore fixed to the conductor connection terminal 1 purely mechanically and does not perform any additional electrical contacting function. As can be seen, for example, in Fig. 3d, the fixing part 6 is spatially aligned in the plug-in direction R into the accessory insertion channel 5. B 4c , exemplarily terminates short of the transmission rail 9 and does not touch it. Instead, however, the fixing part 6 could also be extended in such a way that a part of the fixing part 6 protrudes into a contact slit 27 of the transmission rail 9 and is additionally fixed there, as is depicted, for example, diagrammatically for an accessory element 2 formed as a jumper as shown in FIG. 4c .

[0068] In the exemplary embodiment shown in FIGS. 3a to 3e, the information carrier 17 formed as a sign holder has a height extending from the accessory insertion opening 7 over the entire housing side wall 14 with the conductor insertion opening 8 and protruding beyond the plane of the top surface 12, so that the sign receiving portion 33 of the information carrier 17 for the identification sign is aligned in the insertion direction R of the conductor into the conductor connection terminal 1. L3c, it is above the upper surface 12 of the connection terminal 1. In the inserted state of the accessory element 2, the connecting part 34 of the information carrier 17 between the fixing part 6 and the sign receiving part 33 extends, at least in a section, substantially parallel to the housing side wall 14 and also in the area of ​​the conductor insertion opening 8. In order to avoid the conductor insertion opening 8 being hidden or covered by the information carrier 17 connected to the conductor connection terminal 1, the connecting part 34 has a constriction 35 formed by a side, facing each other, which allows the conductor to be inserted in this cut-out area, i.e. on both sides of the constriction 35, past the connecting part 34 and into the conductor insertion opening 8. For example, in FIG. 3c, it is clearly visible that the constriction 35 of the connecting part 34 in the area of ​​the conductor insertion opening 8 improves the accessibility of the conductor insertion opening 8.

[0069] 4a-4d show a set according to the invention according to a fourth embodiment. FIG. 4a shows four conductor connection terminals 1, two of which have similar dimensions and differ from the other two conductor connection terminals 1. A common accessory element 2 is removably fixed in two mutually-aligned similar conductor connection terminals 1. In the form of the conductor connection terminal 1 shown in FIG. 4a, the cross-sections of the conductor insertion openings 8 and conductor insertion paths 5 of the two conductor connection terminals 1 in the front, i.e. facing the viewer, are designed and formed in such a way that two conductors can be inserted side-by-side into the front conductor connection terminal 1. The two conductor connection terminals 1 in the back, i.e. not facing the viewer, are made narrower and have conductor insertion openings 8 and conductor insertion paths 5 whose cross-sections are intended or suitable for accommodating rather a single conductor.

[0070] According to a fourth embodiment, exemplarily shown in Fig. 4a to Fig. 4d, the accessory element 2 is a contact element 18 which is provided as a jumper for two mutually-aligned conductor connection terminals 1. The jumper is used to establish an electrical connection between adjacent conductor connection terminals 1. As can be seen in Fig. 4a, the width B of the accessory element 2 formed as a contact element 18 is Z is the width B of a single conductor connection terminal 1L The accessory elements 2 extend parallel to the conductor connection terminals 1 which are in a row with respect to one another. The contact element 18 has a plurality of, according to this exemplary embodiment two, fastening parts 6 which can be inserted into the accessory insertion passages 5 of the conductor connection terminals 1 which are in a row with respect to one another and can be fixed there, as is exemplarily shown in FIG. 4a. The fastening parts 6 are then spaced apart from one another by a distance A from one another which is adapted to their respective accessory insertion passages 5 for the conductor connection terminals 1 which may be in a row with respect to one another, as shown in FIG. 4b. B , i.e., the spacing A substantially corresponds to the spacing between the accessory insertion passages 5 of the conductor connection terminals 1 arranged in a row. B 1 and protrudes from the contact element 18 .

[0071] For the conductor connection terminal 1 shown in the back in Fig. 4a, the fixed part 6 of the accessory element 2 has a cross-section equivalent to the assigned accessory insertion passage 5. For the conductor connection terminal 1 shown in the front in Fig. 4a, the fixed part 6 of the accessory element 2 has a cross-section smaller than the assigned accessory insertion passage 5. Due to this configuration of the fixed part 6, the contact element 18 shown in Fig. 4a is compatible with both types of conductor connection terminal 1 despite the use of common parts. In this respect, the fixed part 6 can be supported in different accessory insertion passage areas of the conductor connection terminal 1.

[0072] In this respect, it can be seen suggestively in Fig. 4a that, at the two front conductor connection terminals 1, one fastening part 6 rests against the right edge region of the assigned accessory insert 5 and the other fastening part 6 rests against the left edge region of the assigned accessory insert 5. This results in a mating and / or non-mating connection across both conductor connection terminals 1, which provides a sufficient retention of the fastening parts 6 in the accessory insert 5. Moreover, the retention of the fastening parts 6 in the accessory insert 5 is improved by additional plug-in contours 10 in the form of fork springs 26 as fastening means 21, which can be inserted, for example, as shown in Fig. 4c, into contact slits 27 of the power rail 9, which act as fastening means 21 and form the plug-in contours 10. In FIG. 4c it can further be seen that the fork-shaped spring 26 inserted into the contact slit 27 can be supported in different edge regions of the contact slit 27, thus again resulting in the advantage of high compatibility with various accessory elements 2 of various conductor connection terminals 1 or various transmission rails 9 of the conductor connection terminals 1.

[0073] The fork springs 26 are formed primarily from an electrically conductive material, in particular from a metallic material. The fastening parts 6 according to the fourth embodiment are therefore electromechanical fastening parts 6 with electrical contacts 28. In addition to the mechanical connection function, these fastening parts 6 simultaneously perform the function of electrical contacting of the contact elements 18. Each fork spring 26 consists of two overlappingly arranged spring arms, the respective spring forces of which cause the fork springs 26 to be pressed against the periphery of the contact slot 27 of the current transmission rail 9 in order to improve the electrical contact. The fastening parts 6 are partially elastically deformable in the region of the spring arms. The fork springs 26 can also be considered plug-in tongues of the contact elements 18. A plug-in contour 10 corresponding to the plug-in contour 10 formed as the fork springs 26 of the fastening parts 6 is provided in this embodiment not in the accessory insertion channel 5 of the conductor connection terminal 1 but in the current transmission rail 9 of the conductor connection part 3. This can ensure a secure holding of the fixed part 6 and a sufficient electrical contact between the contact element 18 and the power transmission rail 9 .

[0074] In addition to the fork spring 26, the fixed part 6 of the contact element 18 has in some sections an insulating sheath 29 which also forms the plug-in contour 10 and can rest in the accessory insertion passage 5 of the conductor connection terminal 1. The insulating sheath 29 can, for example, be substantially rectangular in cross section and thus form a rectangular basic plug-in shape 19 and can be received in a mating and / or non-mating manner in the accessory insertion passage 5 which also has a rectangular cross section in order to form a corresponding plug-in contour 10, for example a rectangular basic passage shape 20.

[0075] Figures 5a to 5e show a set according to the invention according to a fifth embodiment. Figure 5a shows two conductor connection terminals 1 to which an accessory element 2 is fixed. The conductor connection terminals 1 have similar dimensions and are arranged in a row with respect to one another. In the version of the conductor connection terminal 1 shown in Figures 5a to 5e, the cross-sections of the conductor insertion openings 8 and the conductor insertion channels 5 are designed and shaped in such a way that two conductors can be inserted side-by-side into the conductor connection terminal 1.

[0076] According to a fifth embodiment, exemplarily shown in Fig. 5a to Fig. 5e, the accessory element 2 is a contact element 18 which is provided as a PE contact with a ground plug 31 for the conductor connection terminal 1. The PE contact serves for the protective earthing of the conductor connection terminal 1. As can be seen in Fig. 5d, the width B Z is the width B of a single conductor connection terminal 1 L This is essentially equivalent to

[0077] The contact element 18 has a fixing part 6, which is inserted into the accessory insertion passage 5 of the conductor connection terminal 1 and fixed there, as shown exemplarily in Figures 5a, 5d and 5e. As can be seen in Figure 5d, the fixing part 6 has a cross-section that is approximately the same size as the assigned accessory insertion passage 5. Due to this form of the fixing part 6, it can at least partially abut against the passage wall of the accessory insertion passage 5 and is securely held there. The basic plug-in shape 19 as plug-in contour 10 and the basic passage shape 20 therefore coincide with one another in this exemplary embodiment and form a corresponding plug-in contour 10.

[0078] As can be seen, for example, in Fig. 5d, the fixed part 6 has a plug-in contour 10 with a substantially rectangular basic plug-in shape 19 in cross-section, and the accessory insertion channel 5 has a stepped, depending on the step, rectangular or trapezoidal basic channel shape 20 with multiple steps, which corresponds to the rectangular basic plug-in shape 19 of the fixed part 6 and against which the basic plug-in shape 19 of the fixed part 6 can abut. Moreover, the retention of the fixed part 6 in the accessory insertion channel 5 is improved by an additional plug-in contour 10 in the form of a bifurcated spring tongue 30 as fastening means 21, which can be inserted into a contact slit 27 of the power transmission rail 9, which acts as fastening means 21 and forms the plug-in contour 10, as shown, for example, in Fig. 5c.

[0079] The spring tongue 30 is formed primarily from an electrically conductive material, in particular from a metallic material. The fixing part 6 according to the fifth embodiment is therefore an electromechanical fixing part 6 with an electrical contact 28, which, in addition to the mechanical connection function, also simultaneously performs the electrical contact function of the contact element 18. The bifurcated spring tongue 30 consists of two side-by-side arranged spring arms, the respective spring forces of which cause the spring tongue 30 to be pressed against the periphery of the contact slot 27 of the power rail 9 in order to improve the electrical contact.

[0080] The spring tongue 30 can additionally have a hook-shaped projection for better retention in the contact slot 27. The fixed part 6 is partially elastically deformable in the region of the spring arm. The spring tongue 30 can also be considered as a plug-in tongue of the contact element 18. A plug-in contour 10 corresponding to the plug-in contour 10 formed as the spring tongue 30 of the fixed part 6 is provided in this embodiment not in the accessory insertion path 5 of the conductor connection terminal 1 but in the transmission rail 9 of the conductor connection part 3. This can ensure a secure retention of the fixed part 6 and a sufficient electrical contact between the contact element 18 and the transmission rail 9.

[0081] Figures 6a to 6f show a set according to the invention according to a sixth embodiment. According to this embodiment, the accessory element 2 is a contact element 18 which is provided as a PE contact with a ground plate 32 for the conductor connection terminal 1. Since the sixth embodiment has some technical commonalities with the fifth embodiment, reference should be made to the figure legends for figures 5a to 5e for the understanding of figures 6a to 6f. In this respect, it can be seen that in the sixth embodiment, instead of the ground plug 31, a ground plate 32 is provided which engages with the conductor connection terminal 1 at its underside 13. In addition to this, the accessory element 2 according to the sixth embodiment has a width B of the conductor connection terminal 1. L Width B of accessory element 2 is small compared to Z With this type of PE contact too, the advantage according to the invention of variable and versatile fastening possibilities for the accessory element 2 in the accessory insertion passage 5 of the conductor connection terminal 1 is achieved. [Explanation of symbols]

[0082] 1 Conductor connection terminal 2 Accessory elements 3 Conductor connection 4 Conductor insertion path 5 Accessory insertion path 6 Fixed part 7 Accessory insertion port 8 Conductor insertion port 9. Power Rail 10 Insertion Profile 11 Insulator housing 12 Top side 13 Bottom side 14 Housing side wall 15 Operating lever 16 Strain Relief Unit 17 Information Carrier 18 Contact Elements 19 Basic Insert Shape 20 Basic passage shape 21 Fixing means 22 Engagement arm 23 Engagement Edge 24 Engagement protrusion 25 Engagement shoulder 26 Fork spring 27 Contact slit 28 Electrical Contacts 29 Insulation coating 30 Spring tongue 31 Grounding plug 32 Ground plate 33 Sign storage unit 34 Connecting part 35 Waist A B Fixed part spacing B Z Accessory element width B L Conductor connection terminal width R L Conductor insertion direction R B Insertion direction of fixed part

Claims

1. A set comprising a conductor connection terminal (1) and an accessory element (2) fixed to the conductor connection terminal (1), the conductor connection terminal (1) having a conductor terminal (3) for connecting a conductor and a conductor insertion path (4) for inserting and guiding the conductor into the conductor terminal (3), characterized in that the conductor connection terminal (1) has an accessory insertion path (5) in addition to the conductor insertion path (4), and the accessory element (2) is configured to be selectively fixed in the accessory insertion path (5) by a fixing portion (6) of the accessory element (2).

2. 2. The set according to claim 1, characterized in that the fastening part (6) of the accessory element (2) and / or the conductor connection terminal (1) has a plug-in contour (10) for fastening the fastening part (6) in the accessory insertion channel (5).

3. 3. The set according to claim 2, characterized in that the plug-in profile (10) has or forms a pluggable geometric basic plug shape (19) or a pluggable geometric basic passage shape (20).

4. 3. A set according to claim 2, characterized in that the plug-in profile (10) has or forms a fastening means (21).

5. 5. A set according to claim 4, characterized in that the fastening means (21) are engagement means (22, 23, 24, 25), spring elements (26, 30) or contact slits (27).

6. 3. The set according to claim 2, characterized in that the plug-in contour (10) of the conductor connection terminal (1) is provided in the accessory insertion channel (5) of the conductor connection terminal (1) and / or in the power transmission rail (9).

7. 3. The set according to claim 2, characterized in that the fastening part (6) of the accessory element (2) and the conductor connection terminal (1) have corresponding plug-in contours (10) for fastening the fastening part (6) in the accessory insertion channel (5).

8. 3. A set according to claim 2, characterized in that the insert profile (10) is formed mainly from an electrically conductive material or mainly from an electrically non-conductive material.

9. 2. A set according to claim 1, characterized in that the fixed part (6) of the accessory element (2) is at least partially elastically deformable.

10. 2. The set according to claim 1, wherein the conductor connection terminal (1) has an insulator housing (11) having an upper surface (12), a lower surface (13), and a housing side wall (14) connecting the upper surface (12) and the lower surface (13), and the accessory insertion opening (7) of the accessory insertion path (5) is arranged in the same housing side wall (14) as the conductor insertion opening (8) of the conductor insertion path (4) of the conductor connection terminal (1).

11. 11. The set according to claim 10, characterized in that the accessory insert (7) is arranged in the housing side wall (14) closer to the lower surface (13) of the insulator housing (11) than the conductor insert (8).

12. The conductor insertion path (4) is Ｌ ) substantially parallel to the accessory insertion channel (5), in the insertion direction (E) of the fastening part (6) of the accessory element (2). Ｂ 2. The set according to claim 1, wherein the set extends from the first end of the first guide wire to the second end of the first guide wire.

13. 2. A set according to claim 1, characterized in that the accessory insertion passages (5) have a smaller cross section than the conductor insertion passages (4).

14. 2. A set according to claim 1, characterized in that the accessory insertion channel (5) has a substantially rectangular, trapezoidal or stepped cross section.

15. 2. A set according to claim 1, characterized in that the fixed part (6) of the accessory element (2) has a smaller cross section than the accessory insertion channel (5).

16. 2. A set according to claim 1, characterized in that it comprises a plurality of conductor connection terminals (1) arranged in rows.

17. 17. The set according to claim 16, characterized in that the accessory element (2) has a width greater than the width of a single conductor connection terminal (1), the accessory element (2) is configured to extend parallel to a plurality of conductor connection terminals (1) arranged in a row, and the accessory element (2) is fixed in at least one accessory insertion channel (5) of one of the conductor connection terminals (1) by means of the fixing portion (6).

18. 18. The set according to claim 17, characterized in that the accessory element (2) has a plurality of fixed portions (6) spaced apart from one another, each fixed portion (6) being inserted into an accessory insertion channel (5) of a conductor connection terminal (1) or of one of the conductor connection terminals (1) arranged in a row.

19. 19. The set according to claim 18, characterized in that the fixing parts (6) have a cross section smaller than the accessory insertion passage (5) respectively assigned to them, and the fixing parts (6) are respectively supported in different accessory insertion passage regions of the conductor connection terminal (1).

20. 2. The set according to claim 1, characterized in that the conductor connection terminal (1) has a power rail (9), and the fastening part (6) of the accessory element (2) inserted into the accessory insertion channel (5) terminates before the power rail (9), terminates at the power rail (9), or is fastened to a plug-in profile (10) of the power rail (9).

21. 2. A set according to claim 1, characterized in that the fastening part (6) is a mechanical fastening part (6) or an electromechanical fastening part (6) provided with electrical contacts (28).

22. 2. The set according to claim 1, characterized in that the accessory elements (2) are strain relief units (16), information carriers (17) and / or contact elements (18).

23. 23. The set according to claim 22, characterized in that the accessory element (2) formed as an information carrier (17) has a sign receiving portion (33) and a connecting portion (34) between the sign receiving portion (33) and the fixing portion (6), and that when the accessory element (2) is fixed to the conductor connection terminal (1), the connecting portion (34) has a constriction (35) in the region of the conductor insertion opening (8) of the conductor connection terminal (1).

24. 2. The set according to claim 1, further comprising an adapter part having a fastening portion (6) by means of which an accessory element (2) without a fastening portion or an accessory element (2) with an incompatible fastening portion is indirectly fastened in the accessory insertion channel (5) of the conductor connection terminal (1).

25. 2. The set according to claim 1, characterized in that the accessory element (2) is adapted to be removably fastened to the conductor connection terminal (1).

26. 2. A set according to claim 1, characterized in that the conductor connection terminal (1) has two accessory insertion passages (5) located substantially opposite each other and facing each other.

Images