Busbar connection terminal, busbar connector, connection member, and grinding line

Abstract

The invention relates to a busbar connection clamp (74) for electrically and mechanically connecting a first and second free end of a first and second busbar (8a-e, 108a-e) extending in a longitudinal direction (L), wherein the first and second ends each have an end face (8h, 108h) closing the busbars (8a-e, 108a-e) and longitudinal sides (8f-g, 108f-g) adjoining it at an angle, wherein the first and second ends are angled relative to the longitudinal direction (L) such that the end faces (8h, 108h) point substantially in the same insertion direction (E) in which the busbar connection clamp (74) is placed on the ends of the busbars (8a-e, 108a-e) and a longitudinal side (8f, 108f) of the first and second ends face each other.wherein the busbar connection terminal (74) has first contact elements (81a-e) and second contact elements (81a'-e') opposite these first contact elements (81a-e) in the longitudinal direction (L) for clamping contact with the longitudinal sides (8f, 108f) of the first and second ends, respectively. The invention solves the problem of enabling a good and uninterrupted electrical connection between the opposing ends of the busbars (8a-e, 108a-e) by ensuring that the distance (AK) between the first and second contact elements (81a-e; 81a'-e') is smaller than the combined thickness (DK) of the opposing first and second ends of the busbars (8a-e, 108a-e).

Description

[0001] The invention relates to a busbar connection clamp according to the preamble of claim 1, a busbar connector according to the preamble of claim 11, a connecting element according to the preamble of claim 15 and a conductor rail, in particular a box conductor rail according to the preamble of claim 19.

[0002] DE 20 2022 105 468 U1 relates to a box-type conductor rail with a longitudinally extending frame profile surrounding an interior space. The interior space is accessible from the outside via a longitudinally extending slot in the frame profile. Within this interior space, several conductor rails are provided for sliding contact, each with a corresponding sliding contact of a current collector car that travels along the conductor rail. The desired outcome is to enable the best possible guidance of the current collector car within the conductor rail, minimizing wear of the conductor rail contacts and reducing noise pollution. Furthermore, the design aims to ensure the most uniform possible wear of the conductor rail contacts and to improve the service life of the conductor rails and the transmissible current density while maintaining the same dimensions as the box-type conductor rail.This is achieved by arranging the busbars at an angle to each other around the longitudinal direction in the conductor rail.

[0003] DE 20 2015 106 472 U1 relates to a contact element for electrically connecting an electrical conductor component to an electrical assembly, comprising two contact rails extending in a longitudinal direction, arranged one above the other and spaced apart from each other in a contact direction, and which are also connected to each other by a connecting piece, characterized in that the connecting piece is arranged on a first side of the contact rails and extends in the longitudinal direction and in the contact direction, so that the contact element is approximately U-shaped in a cross-section transverse to the longitudinal direction, which runs through the connecting piece.

[0004] WO 2013 / 037 837 A2 relates to a method and a corresponding conductor rail for the detachable connection of at least two consecutive conductor rails of a conductor rail with a connector, in which a first receiving part is detachably attached to a first end of a first conductor rail, a second receiving part is detachably attached to a second end of a second conductor rail, and the first receiving part and the second receiving part are detachably connected to each other in an operating state via a connecting part, wherein after two first assembly steps in a third assembly step the two receiving parts are moved towards each other along a longitudinal direction of the conductor rails until a connection position is reached, whereby a first web of the connecting part is pushed into the gap.To improve the process, it is proposed that, upon reaching the connection position, a longitudinally acting positive-locking connection be established between the connecting part and the second receiving part. To improve the conductor rail, it is proposed that, in a pre-assembled state, a first locking element arranged on the second receiving part and a second locking element arranged on the connecting part interact positively in a longitudinal direction along the busbars such that the two receiving parts are held in a connected position.

[0005] DE 7 838 249 U1 relates to a low-voltage high-performance fuse with blade contacts, both on the fuse links and on the fuse bases, characterized in that adapters are preferably attached to the blade contact pieces of the fuse link, which enable the fuse link provided with blade contact pieces to be placed on a fuse base also equipped with blade contact pieces and generate the contact pressure between the blade contact pieces.

[0006] DE 20 2008 004 431 U1 relates to a busbar connector with an electrically conductive body element having at least two fork-shaped legs forming a recess for receiving a busbar, wherein the legs are pre-tensioned by means of a spring element.

[0007] Furthermore, such box-type conductor rails are assembled from individual sections several meters long, whereby the respective ends of the conductor rails must be electrically connected at the ends of the conductor rail sections to be joined. Since these ends are subject to vibrations during operation due to the passage of the current collector car through the conductor rail, and since changes in length of the electrically conductive, metallic conductor rails occur, especially in outdoor installations, due to temperature fluctuations, a permanent, uninterrupted, and sufficiently powerful electrical connection of the conductor rail ends must be ensured.

[0008] The invention is therefore based on the objective of eliminating the aforementioned disadvantages and, in particular, providing a busbar connection clamp and a busbar connector that enable a good and uninterrupted electrical connection between the opposing ends of two sections of a conductor rail.

[0009] The invention solves this problem by means of a busbar connection clamp with the features of claim 1, a busbar connector with the features of claim 11, a connecting element with the features of claim 15, and a conductor rail, in particular a box conductor rail with the features of claim 19, as well as by the use of a busbar connection clamp with the features of claim 21 as described above and below and in the claims, and the use of a busbar connector with the features of claim 22 as described above and below and in the claims.

[0010] A busbar connection terminal mentioned above is characterized according to the invention in that the distance between the first and second contact elements is smaller than the combined thickness of the first and second ends of the busbars facing each other.

[0011] The vertical direction is preferably perpendicular to the longitudinal direction, and a transverse direction is preferably perpendicular to the longitudinal direction and / or the vertical direction. An insertion direction E is the direction in which the busbar connection clamp is placed onto the ends of the busbars and preferably runs perpendicular to the longitudinal direction of the conductor rail. When the transverse and longitudinal directions of the busbar connection clamp are mentioned, the inserted state of the busbar connection clamp is assumed, i.e., when the ends of the busbar are connected to each other by the busbar connection clamp.

[0012] Advantageously, the contact elements can initially extend in the insertion direction and then have their free ends bent back against the insertion direction, with the free ends of the contact elements bent towards each other. The distance between the first and second contact elements can be determined by the distance between the bent free ends of the contact elements.

[0013] Furthermore, the first and second contact elements can advantageously widen in a funnel shape in the insertion direction. The free ends of the first and second contact elements can also initially point towards each other and then away from each other in the insertion direction. Preferably, the first contact elements and the second contact elements can have several adjacent contact tongues.

[0014] In an advantageous embodiment, the busbar connection terminal can have a body with an interior space for receiving the ends of the busbars.

[0015] Preferably, the busbar connection terminal can have stops behind the contact elements in the insertion direction of the busbar connection terminal, for contact with corresponding stops of a clamping head of a busbar connector. These stops can run perpendicular to the insertion direction.

[0016] Furthermore, the busbar connection terminal can advantageously have opposing, funnel-shaped insertion aids. These insertion aids can be arranged on guide flanks of the busbar connection terminal that run in the insertion direction.

[0017] Furthermore, the busbar connection terminal can have at least one positioning opening for a positioning element, in particular a positioning pin of a clamping head of a busbar connector surrounding the busbar connection terminal. Preferably, the positioning opening can be adapted to the shape of the positioning element. The positioning opening can also advantageously be provided in a side of the busbar connection terminal extending transversely to the longitudinal direction and / or transversely to the insertion direction. In addition, the busbar connection terminal can advantageously have a further positioning opening opposite the positioning opening.

[0018] The busbar connection terminal, or at least its contact elements, may preferably be made of an electrically conductive material. Furthermore, the busbar connection terminal may advantageously be made of a flat and / or strip-shaped material. In particular, the busbar connection terminal may advantageously be punched or laser-cut from the flat and / or strip-shaped material and then bent into the three-dimensional shape of the busbar connection terminal, and / or wherein the edges of the flat material to be joined are connectable or connected to each other by means of a positive-locking connection, in particular a dovetail joint.

[0019] The busbar connection terminal can have opposing, electrically conductive side walls which contact the longitudinal sides of the bent free ends of the busbars, which lie transversely to the longitudinal direction, and in particular the narrow ones.

[0020] In an advantageous embodiment, the distance between the opposing electrically conductive side walls, particularly transversely to the longitudinal direction, can be equal to or less than the width of the, in particular wide, longitudinal sides of the bent free ends of the busbars, particularly transversely to the longitudinal direction. This provides an additional electrical contact to further improve current transmission. Additionally or alternatively, the opposing conductive flanks, as extensions of the side walls, can also be spaced apart so that the conductive flanks also contact the narrow longitudinal sides of the bent ends of the busbars.

[0021] A busbar connector mentioned above is characterized according to the invention in that it is provided for connecting the ends of busbars of mutually facing sections of the conductor rail as described in the claims and above and below.

[0022] Advantageously, the clamping head can preferably have longitudinally projecting overhangs with positioning elements that interact with positioning stops at the insertion opening to position and / or secure the clamping head in the insertion opening. This provides an additional connection between the first and second connecting elements, making the connection even more stable. It also ensures a defined and secure fit of the busbar connector in the insertion opening, further improving the electrical and / or mechanical connection between the two ends of the busbars established by the busbar connection clamp.

[0023] Advantageously, the clamping head can have a receiving space for the busbar connection terminal. This receiving space can preferably have locking tabs and / or locking lugs for holding the clamping head, which interact with corresponding locking tabs and / or locking lugs on the clamping head. Furthermore, the clamping head can preferably have positioning elements extending transversely to the insertion direction and preferably longitudinally, in particular positioning pins for corresponding positioning openings of the busbar connection terminal. The two clamping head parts can also preferably be identical, which allows for both simpler manufacturing of the clamping head parts and simpler assembly of the busbar connector, since no different parts need to be manufactured and there is no risk of confusing different clamping head parts during assembly.

[0024] Furthermore, the busbar connector can be made of an electrically insulating material, in particular plastic. Preferably, one clamping head part can have at least one locking tab, preferably extending longitudinally, and the other clamping head part can have a corresponding lateral locking lug, preferably extending longitudinally, which interacts with the locking tab. Preferably, the clamping head part can have the locking tab on one of its longitudinally extending sides and the locking lug on its other longitudinally extending side.

[0025] The clamping head can also have a cover located behind the busbar connection terminal in the insertion direction of the busbar connector, which, when the busbar connector is inserted into the insertion opening, covers the busbar connection terminal and the ends of the bare busbars from the environment, preferably electrically insulated from the environment, in order to have no parts under electrical voltage in the assembled state.

[0026] Furthermore, the busbar connector can have an insertion opening, particularly one that widens in a funnel shape in the insertion direction, in front of the busbar connection terminal, for inserting the ends of the busbars between the contact elements into the receiving space. This facilitates the assembly of the busbar connector.

[0027] A connecting element mentioned at the outset is characterized according to the invention in that a portion of insertion openings for busbar connectors described above and below, as well as in the claims, is provided on the first and second connecting profiles, into which the busbar connectors can be inserted when the first and second connecting profiles are assembled.

[0028] Preferably, the insertion openings can have locking tabs or locking lugs for engaging with corresponding locking lugs or locking tabs of the busbar connectors in the respective insertion opening. Preferably, a lateral connecting opening can be provided on the first connecting profile, into which a lateral connecting tab, arranged on the second connecting profile and projecting longitudinally across it towards the first connecting profile, engages to fasten the two connecting profiles together. Furthermore, a lateral connecting opening can be provided on the second connecting profile, into which a lateral connecting tab, arranged on the first connecting profile and projecting longitudinally across it towards the second connecting profile, is provided for further fastening the two connecting profiles together.Furthermore, a locking tab can advantageously be provided on the first connecting profile, which interacts with a locking lug arranged on the second connecting profile, wherein when the connecting profiles are assembled longitudinally, the locking tab is pushed over the locking lug and engages with it, and wherein preferably a further locking tab can be provided on the second connecting profile, which interacts with a further locking lug arranged on the first connecting profile, wherein when the connecting profiles are assembled longitudinally, the further locking tab is pushed over the further locking lug and engages with it.

[0029] Preferably, the connecting profile(s) can be box-shaped.

[0030] In an advantageous embodiment, the box-shaped connecting profile can have opposing connecting side walls, which are connected to each other by a connecting top wall. Advantageously, the connecting side walls can have connecting bottom walls on their side opposite the connecting top wall, between which the longitudinal slot runs. Furthermore, the connecting side walls can advantageously be connected to the connecting top wall and / or the connecting bottom walls by means of inclined connecting walls extending at an angle to them, in particular where the angle is preferably 35° to 55°, more preferably 40° to 50°, and most preferably 44° to 46°.Furthermore, the inclined connecting walls can have inclined connecting busbar supports and / or the upper connecting wall can have additional connecting busbar supports for holding busbars of the sections of the conductor rail, wherein the connecting busbar supports are preferably aligned with corresponding busbar supports of the frame profiles. Advantageously, the connecting profile(s) can also have at least one, preferably lateral, connecting guide groove for one or more, preferably lateral, corresponding guide webs of the current collector, wherein the connecting guide grooves are preferably aligned longitudinally with guide grooves of the frame profiles of the adjoining conductor rail.

[0031] A conductor rail mentioned at the outset is characterized according to the invention in that a busbar connector as described in the claims and above and below is provided for connecting mutually facing sections of the conductor rail.

[0032] Advantageously, the first end of the first busbar can be angled away from the interior of the conductor rail at an angle of 85° to 90°, preferably 90°, relative to the longitudinal direction, and the second end of the second busbar can be angled away from the interior of the conductor rail at a correspondingly opposite angle of 90° to 85°, preferably 90°, relative to the longitudinal direction. Furthermore, the bent ends of the busbars can preferably protrude into insertion openings of the connecting element and be gripped by electrical busbar connection terminals.

[0033] Preferably, the busbars can be made of a strip-shaped material, in particular wherein wider strip surfaces of the busbars form sliding surfaces for the sliding contacts. The first busbar can also have an end face closing its first end and the second busbar a second end, each with longitudinal sides adjoining it at an angle, wherein the first and second ends each have an end face closing the busbars and longitudinal sides adjoining it at an angle, wherein the first and second ends are angled relative to the longitudinal direction such that the end faces point substantially in the same insertion direction in which the busbar connection clamp is placed on the ends of the busbars, and a longitudinal side of the first end and a longitudinal side of the second end face each other.

[0034] Furthermore, the frame profiles can advantageously be box-shaped. Preferably, the busbars can be arranged in the corners of the box-shaped frame profile. The box-shaped frame profile can also advantageously have opposing side walls connected to each other by a top wall, in particular wherein the side walls have bottom walls on their side opposite the top wall, between which the longitudinal slot runs. In addition, the side walls can be connected to the top wall and / or the bottom walls by means of inclined walls running at an angle to them, in particular wherein the angle is preferably 35° to 55°, more preferably 40° to 50°, and most preferably 44° to 46°.The inclined walls can also advantageously be supported by stabilizing ribs on the adjacent side wall, top wall, and / or bottom wall, particularly wherein the stabilizing ribs are preferably arranged at an angle of 90° to the inclined walls. Stabilizing walls can run between adjacent inclined walls, particularly wherein the stabilizing walls are connected to the respective adjacent side wall via lateral stabilizing ribs. The conductor rails can also advantageously be arranged on the inclined walls, particularly wherein a further conductor rail for at least one additional sliding contact of the current collector car is provided in the interior. The conductor rails can also be arranged in conductor rail holders of the conductor rail, particularly wherein the conductor rail holders have a U-shaped cross-section with rebates on the respective conductor rail that engage each other.Preferably, the busbars can extend over the ends of the subsections into connecting busbar holders of the connecting profile(s).

[0035] Preferably, a busbar connection terminal as described above and below as well as in the claims can be used for the electrical and mechanical connection of the first free end of the first busbar extending in a longitudinal direction with the second free end of the second busbar extending in the longitudinal direction.

[0036] Preferably, a busbar connector as described above and below as well as in the claims can be used with a connecting element as described above and below as well as in the claims.

[0037] Further features and advantages of the invention will become apparent from the following description of a preferred embodiment with reference to the drawings. These show: Fig. 1 a sectional view through a section of the conductor rail according to the invention along the section line AA in Fig. 2 with a side view of a pantograph carriage that can travel in the conductor rail; Fig. 2 a side view of the section of the conductor rail Fig. 1 from the right without pantograph car; Fig. 3 a side view of the pantograph car Fig. 1 from the right. Fig. 4 a three-dimensional oblique view of a part of a conductor rail according to the invention with a busbar connector according to the invention; Fig. 5 the three-dimensional oblique view from Fig. 4 with an exploded view of a busbar connector and a detailed view a) of the busbar connector and the insertion opening; Fig. 6 the three-dimensional oblique view from Fig. 4 without frame profiles; Fig. 7 the three-dimensional oblique view from Fig. 4 only with busbars and busbar connectors connecting their ends; Fig. 8 a three-dimensional oblique view of the busbar connector Fig. 5 in exploded view; Fig. 9 a front view of the busbar connector Fig. 8 ; Fig. 10 a top view of the busbar connector Fig. 9 ; Fig. 11 a front view of the busbar connector Fig. 5 ; Fig. 12 a top view of the busbar connector Fig. 11 ; Fig. 13 a cross-sectional view through the busbar connector Fig. 11 along the intersection line BB in Fig. 12 ; Fig. 14 a three-dimensional oblique view of the electrical connection terminal of the busbar connector Fig. 8 from a first perspective; Fig. 15 a three-dimensional oblique view of the electrical connection terminal Fig. 11 from a second perspective, different from the first; Fig. 16 a front view of the electrical terminal block Fig. 14 from diagonally left; Fig. 17 a side view of the electrical terminal block Fig. 16 from the right; Fig. 18 a bottom view of the electrical terminal block Fig. 16 ; Fig. 19 a top view of the electrical terminal block Fig. 16 .

[0038] Fig. 1 and 2 show a conductor rail system 1 with a box conductor rail 2 and a current collector car 20 movable in a longitudinal direction L in an interior space I of the box conductor rail 2, wherein in Fig. 1 the box conductor rail 2 in a sectional view along the section line AA from Fig. 2 is shown, while the pantograph car 20 is only partially shown in cutaway view.

[0039] The box-type conductor rail 2 consists of a box-shaped frame profile 3 made of an electrically insulating material, preferably plastic, and is preferably formed in one piece. However, other materials can also be used, for example, aluminum sheets coated with an insulating plastic layer, and the frame profile 3 can also be made of different components. Alternatively, a different type of conductor rail for movable electrical loads can be used instead of a box-type conductor rail. The box-type conductor rail 2 is preferably mounted in the position shown in the drawings.

[0040] The frame profile 3, which is known per se, has a substantially rectangular cross-section with a longitudinal slot 4 pointing downwards in a vertical direction H towards the interior I of the frame profile 3. In the area of ​​the longitudinal slot 4, track surfaces 5a, 5b facing the interior I and extending in a transverse direction Q are provided, with lateral roller guide webs 6a, 6b projecting vertically in the vertical direction H, i.e., upwards into the interior I in the drawings.

[0041] Preferably, the vertical direction H is perpendicular to the longitudinal direction L and / or the transverse direction Q, and likewise, the transverse direction is preferably perpendicular to the longitudinal direction L and / or the vertical direction H. Particularly preferably, the directions L, H, and Q can be perpendicular to each other, thus forming a Cartesian coordinate system.

[0042] Furthermore, the frame profile 3 has busbar supports 7a-d extending at a 45° angle to the side walls of the frame profile 3 running in the vertical direction H, and a busbar support 7e extending in the transverse direction Q. Busbars 8a-e are held in the busbar supports 7a-e. The busbars 8a-e are preferably made of a highly electrically conductive strip material and have abrasive surfaces 9a-e facing the interior I, designed for electrical contact. Optionally, the busbars 8a-e can also be made of another highly electrically conductive material, which may also have other cross-sectional shapes. Opposing abrasive surfaces 9a and 9d or 9b and 9c run at an angle of 180° to each other, i.e., parallel to each other.

[0043] To supply power to an electrical load movable along the box conductor 2, the following is required: Fig. 1 and 3The pantograph car 20 shown is movable in the box conductor rail 2 in the longitudinal direction L. The pantograph car 20 has a frame 21, at the front and rear ends of which, in the longitudinal direction L, running rollers 22, 23 are arranged below and guide rollers 24, 25 are arranged above, rotatably about axes running perpendicular to the longitudinal direction L and, in particular, in the transverse direction Q. The rollers 22-25 are designed as double-flanged rollers, but can also be configured differently.

[0044] The rollers 22 and 23 are identically designed, so that the following mainly concerns those in the Fig. 1 The description of the right roller 23 shown applies to the left roller 22. The roller 23 has lateral flanges 27a, 27b which engage the two lateral roller guide webs 6a, 6b from the outside and roll with end-face running surfaces 29a, 29b on the track surfaces 5a, 5b of the frame profile 3. Fig. 1 The lateral roller guide 6b in the area of ​​the running rollers 22, 23 is shown with openings in order to better illustrate the bearing of the running surfaces 28b, 29b on the track surface 9b and the wheel flanges 26b, 27b.

[0045] The upper guide rollers 24, 25 are also identically designed, so that the following mainly concerns the ones in the Fig. 1 The right guide roller 25 shown is described; corresponding statements also apply to the left guide roller 24. The guide roller 25 also has lateral wheel flanges 31a, 31b which engage the rail retaining webs 23, 23' of the conductor rail support 20. The distance between the wheel flanges 31a, 31b of the upper, in Fig. 1 and 4 The right guide roller 25 is adapted to the width of the upper power rail support 7e in such a way that there is some play, so that the wheel flanges 31a, 31b do not rub unnecessarily against the power rail support 7e.

[0046] The wheel flanges 30a, 30b and 31a, 31b respectively encircle the conductor rail support 7e and thus ensure that the current collector car 2 can be moved in the box conductor 2 with as little lateral deflection as possible in the transverse direction Q.

[0047] Several sliding contacts 32a-f are provided on the pantograph car 20, which contact the sliding surfaces 9a-e of the conductor rails 8a-e with their end faces as follows.

[0048] The sliding contacts 32a, 32b, 32d contact the busbars 8a, 8b, 8d and serve as phase conductor sliding contacts.

[0049] A pair of sliding contacts 32c, 32f, which contact the conductor rail 8c, serves as an earthing contact for the electrical load. To ensure the continuous earthing of the electrical load even when passing over a break between two adjacent sections of the box conductor rail 2, the sliding contacts 32c and 32f are therefore spaced apart from each other in the longitudinal direction L, which also corresponds to the direction of travel of the current collector car 20.

[0050] The upper sliding contact 32e serves to connect to the upper busbar 8e and acts as a neutral potential conductor.

[0051] To ensure secure, permanent, and uninterrupted contact between the sliding contacts 32a-f and the abrasive surfaces 9a-e, even in the event of wear-related shortening of the sliding contacts 32a-f, they are each permanently pressed towards the abrasive surfaces 9a-e by means of their own, shared, or partially shared positioning device, for example, via respective spring mechanisms. This is evident, among other things, from the fact that the sliding contacts 32a-f are in Fig. 1 are in a retracted position while they are in Fig. 3 in a fully extended position. When the current collector car 20 enters the box conductor rail 2, the sliding contacts 32a-f are then preferably inserted into the box conductor rail 2 by means of an entry funnel and thereby into the Fig. 1 The position shown is moved, in which they are pressed against the grinding surfaces 9a-e by means of a preload, for example by appropriately arranged spring elements.

[0052] A longitudinally L-shaped cable duct 33 of the pantograph carriage 20 then extends, as shown in Fig. 1 and 2 shown, through the longitudinal slot 4, so that cables or wires connected to the sliding contacts 32a-f can be led through the cable duct 33 to the electrical consumer.

[0053] Since the sliding contacts 32a-d are arranged at a 45° angle to each other and in pairs opposite each other, corresponding to the sliding surfaces 9a-d, the contact forces on the sliding contacts 32a-d in the box conductor 2 are distributed evenly. Furthermore, since the load is directed towards the corners of the box conductor 2, the increased stiffness of the box conductor 2 at the corners can be utilized. Because the sliding contacts 32a-d are not arranged only on opposite side walls, as in known box conductors, the busbars 8a-d can be made thicker for the same overall dimensions of the box conductor 2. This allows for a longer service life of the busbars 8a-d and the transmission of higher currents.

[0054] Furthermore, on the box-shaped frame profile 3, there is a [feature / position] on one side wall. Fig. 1 , 2 and 5A clearly visible, longitudinally extending lateral guide groove 10 is provided, into which a Fig. 3 The clearly recognizable associated lateral guide rail 34 of the pantograph carriage 20 engages.

[0055] Typically, conductor rails such as the box conductor rail 2 are assembled from several conductor rail sections due to their often considerable lengths, for example, several tens or hundreds of meters. In this example, the ends of two abutting sections 2a and 2b of the conductor rail 2, which are to be joined, are shown and described. Sections 2a and 2b are therefore not assembled from a single frame profile 3, but from several frame profiles 3, with particular emphasis on... Fig. 4 and 5Another such box-shaped frame profile 103 is shown. Frame profile 103 is identical in design to frame profile 3 described above, so that the descriptions, explanations, and specifications for frame profile 103 apply accordingly. Parts of frame profile 103 corresponding to frame profile 3 bear the same reference numerals as those of frame profile 3, with a preceding digit "10" for reference numerals less than 10 and a preceding digit "1" for reference numerals greater than 9.

[0056] The following describes how this is done in Fig. 1 left end of the box-shaped frame profile 3 of the conductor rail 2 with the in Fig. 4 and 5 the right end of the further frame profile 103 shown on the left by means of a particularly in Fig. 2 and 4 bis 6 The connecting element 40 shown can be connected both mechanically and electrically.

[0057] The connecting element 40 comprises a first partial connecting element 41 and a second partial connecting element 41', which are identically designed. The inner contours of the partial connecting elements 41, 41' are designed such that, in the fully assembled connected state, the current collector car 20 can pass through the connecting element 40 as if it were passing through the frame profiles 3, 103, without interrupting the electrical contact between the conductor rails 8a-e of the first box-shaped frame profile 3 and the second partial connecting element 41'. Fig. 6 and 7 The circuit is interrupted between the clearly visible busbars 108a-e of the second box-shaped frame profile 103 and between the busbars 8a-e or 108a-e and the sliding contacts 32a-f.

[0058] The partial connecting elements 41, 41' each have a connecting contour 42, 42' which encompasses the ends of the box-shaped frame profiles 3 and 103, respectively, as shown in particular in Fig. 2 , 4 and 5Clearly visible. The inner contour of the connecting contour 42, 42' is adapted to the outer contour of the box-shaped frame profiles 3 and 103, respectively.

[0059] Since the partial connecting elements 41, 41' are identically designed, the following explanation will also refer to partial connecting element 41 only, where appropriate. Corresponding descriptions then also apply to the other partial connecting element 41'. On the side opposite the connection contours 42, 42' in the longitudinal direction L, the partial connecting elements 41, 41' are formed with a connecting profile 43, 43', which enables, firstly, the mechanical, detachable and electrically conductive connection of the partial connecting elements 41, 41' to one another, and secondly, allows the current collector carriage 20 to move and be guided safely while maintaining permanent electrical contact between the sliding contacts 32a-f and the conductor rails 8a-e and 108a-e.

[0060] For this purpose, the connecting profiles 43, 43' largely mirror the outer and inner contours of the box-shaped frame profiles 3, 103 in order to ensure the guidance of the current collector carriage 20 and the permanent contact of the conductor rails 8a-e and 108a-e with the sliding contacts 32a-f. The connecting profiles 43, 43' thus extend the frame profiles 3, 103 in the area of ​​the connection point of both sections 2a, 2b of the conductor rail 2.

[0061] The connecting profiles 43, 43' have auxiliary busbar supports for the busbars 8a-e and 108a-e, respectively, corresponding to the inclined busbar supports 7a-e and the upper busbar support 20. Furthermore, the connecting profiles 43, 43' have lateral connecting guide grooves, the position of which corresponds to the lateral guide grooves 10, 110 of the frame profiles 3, 103. This ensures that the lateral guide web 34 of the pantograph carriage 20 is well guided, even in the area of ​​the connecting element 40.

[0062] The connecting profiles 43, 43 also have opposing connecting side walls, which are connected to each other by a connecting top wall. On the side opposite the connecting top wall, the connecting side walls have connecting bottom walls. Between the connecting bottom walls, a longitudinal slot of the connecting element 40 runs in the longitudinal direction L, which aligns with the longitudinal slot 4 or 107 of the frame profiles 3, 103 and serves to allow passage through the cable duct 33 of the current collector carriage 20. Preferably, the connecting side walls can be connected to the connecting top wall and / or the connecting bottom walls by means of inclined connecting walls running at an angle to them, the angle being 45°.

[0063] During assembly, the partial connecting elements 41, 41' are attached to the respective ends of the box-shaped frame profiles 3 and 103, respectively, and then connected to each other as described below. Thus, the partial connecting element 41 has a [missing information] on one side in the transverse direction Q. Fig. 5 and 6 The connecting tab 44 shown engages in a corresponding connecting opening 45' of the other partial connecting element 41' to be connected and can be fastened there by means of a snap connection. The same applies to the side opposite in the transverse direction Q, where the partial connecting element 41 has a correspondingly shaped connecting opening (not shown) for a correspondingly shaped connecting tab of the partial connecting element 41' with a corresponding snap connection. This allows the two partial connecting elements 41, 41' to be firmly connected to each other.

[0064] Further security of the connection is provided by in Fig. 4 bis 6 Recognizable U-shaped locking tabs 46, 46' on the first and second partial connecting element 41, 41' enable this, which, when the partial connecting elements 41, 41' are joined together, can be pushed over upper locking lugs 47', 47 arranged on the respective other partial connecting element 41', 41 and then locked with these.

[0065] As in Fig. 5 and 7 As can be seen and explained particularly with regard to the first conductor rail 8e and the second conductor rail 8e, the conductor rails 8e and 108e, respectively, have end faces 8h and 108h respectively, respectively, at their free ends intended for connection, in the longitudinal direction of the conductor rails 8e and 108e, respectively, and wider longitudinal sides 8f and 108f and narrower longitudinal sides 8g and 108g adjoining these at an angle. The same applies to the other conductor rails 8a-d and 108a-d.

[0066] What's next in Fig. 5 and 7As can be seen, the opposing ends of the busbars 8a-e and 108a-e, respectively, are bent outwards, preferably by approximately 90°, transversely to the longitudinal direction L of the box conductor 2 and the connecting element 40, respectively, away from the interior I of the box conductor 2 and the corresponding interior V of the connecting element 40, and contact each other with the opposing surfaces of the bent ends, in particular their opposing wider longitudinal sides 8f, 108f, thereby providing a large-area electrical contact. Advantageously, the bending can only be carried out during final assembly on site.

[0067] The bent ends of the busbars 8a-e and 108a-e also ensure that the partial connecting elements 41, 41' are captive connected to the frame profiles 3 and 103, respectively.

[0068] To securely hold the ends of the busbars 8a-e and 108a-e together, thus ensuring permanent electrical contact and, in particular, preventing voltage-induced air flashovers, insertion openings 48a-e with locking lugs 49e, 49e' arranged therein are provided at the ends of the partial connecting elements 41, 41' in the assembled state, as shown by way of example in Fig. 5 and detail a) of Fig. 5 as shown using the upper insertion opening 48e and described below.

[0069] A busbar connector 60e is inserted into the insertion opening 48e, which is in Fig. 8 bis 13 shown in detail.

[0070] The busbar connector 60e has an approximately mushroom-shaped clamping head 61, which consists of two identically shaped clamping head parts 62, 62'. The exploded views in Fig. 8 bis 10 They show the respective design in the separated, disassembled state before assembly, while the Fig. 12 und 11 bis 13 show the assembled state.

[0071] Locking lugs 63, 63' and 64, 64' respectively are arranged on longitudinally L extending side walls of the clamping head parts 62, 62', as shown in Fig. 8 bis 10 Clearly visible. These have a wedge-shaped profile extending upwards in the vertical direction H in order to interact with the locking tabs 49e, 49e' of the insertion opening 48e. Since the busbar connector 60e is inserted into the insertion opening 48e from above, the locking lugs 63, 63', 64, 64' slide over the locking tabs 49e, 49e' and then snap into place as soon as they have passed over them. This secures the busbar connector 60e in the insertion opening 48e against falling out.

[0072] Furthermore, the clamping head parts 62, 62' each have a longitudinally extending U-shaped locking tab 65, 65' and correspondingly interacting lateral locking lugs 66', 66, whereby, due to the identical design of the two clamping head parts 62, 62', these two can be easily plugged together. The U-shaped locking tabs 65, 65' are slid longitudinally over the lateral locking lugs 66, 66', with the respective locking points of the locking lugs 66, 66' facing away from the other clamping head part 62', 62'.

[0073] At its rear end, in the insertion direction E of the busbar connector 60e into the insertion opening 48e, the clamping head 61e widens in a mushroom shape. Covers 67, 67', provided on the two clamping head parts 62, 62' and extending essentially transversely to the insertion direction E, form a common cover, so that the area in front of the clamping head in the insertion direction E is no longer accessible from the outside when the busbar connector 60e is inserted. The insertion direction E always refers to the respective pair of busbar connectors 60a-e and their corresponding insertion openings 48a-e.

[0074] In the longitudinal direction L, facing away from the other clamping head part 62, 62', two are found, in particular in Fig. 9 Clearly visible projections 68, 68' extend outwards in the longitudinal direction L and have downward-projecting positioning lugs 69, 69' at their ends located on the outer side in the longitudinal direction L. The projections 68, 68' engage with the positioning lugs 69, 69' from above into corresponding positioning stops 50e, 50e' of the insertion opening 48e. This also provides a connection between the partial connecting elements 41, 41'.

[0075] The two clamping head parts 62, 62' form the clamping head 61e when assembled, and as shown in particular in Fig. 13 Clearly visible, it includes a receiving chamber 70 for an electrical connection terminal 74. The receiving chamber 70 has upper stops 71, 71' in the respective terminal head part 62 and 62'. Furthermore, positioning pins 72, 72' are provided on the opposite terminal head parts 62, 62' on the end walls of the receiving chamber 70 extending in the insertion direction E.

[0076] At the front end in the insertion direction E of the busbar connector 60e into the insertion opening 48e, the busbar connector 60e has a funnel-shaped insertion opening 73 that narrows towards the receiving space 70 for the ends of the busbars 8e and 108e. This allows even slightly misaligned ends of the busbars 8e and 108e to be easily inserted into the busbar connector 60e.

[0077] How Fig. 13 As shown, the electrical connection terminal 74 is completely enclosed in the busbar connector 60e and its receiving space 70. Since the covers 67, 67' of the two terminal head parts 62, 62' completely close off the receiving space 70 from above, there is no risk of persons unintentionally coming into contact with the live electrical connection terminal 4 when installed.

[0078] The connecting terminal 74 will now be described primarily based on the following: Fig. 14 bis 19 described in detail. As can be seen from the two three-dimensional representations in Fig. 14 und 15 Easily recognizable, the terminal block 74 has a circumferential body 75 which, viewed from above, has a substantially rectangular cross-section. The electrical terminal block 74 is stamped or laser-cut from an electrically conductive sheet metal, which is then bent into the terminal block 74. As in Fig. 14 und 15 The ends of the bent sheet metal are then firmly connected to each other by means of a positive locking connection designed as a dovetail joint 76, although other types of connection are also conceivable.

[0079] At its rear end in the insertion direction E, the connecting clamp 74 has two inwardly curved and preferably 90° upper stops 77, 77' on opposing, transversely extending side walls Q in the inserted state, which are wider here, and which, as in Fig. 13 recognizably, they abut the upper stops 71, 71' of the clamping head 61e and thus prevent further upward movement.

[0080] On its wider side walls, which extend transversely in the direction Q when installed, the circumferential body 75 has positioning openings 78, 78' into which the positioning pins 72, 72' of the clamping head 61e engage when the busbar connector 60e is mounted. This, in conjunction with the upper stops 77, 77' of the connecting terminal 74 and the upper stops 71, 71' of the clamping head parts 62, 62', ensures secure fixation of the connecting terminal 74 in the clamping head 61e. The connecting terminal 74 is thus positioned and secured in the clamping head 61e both in the insertion direction E and in the transverse direction Q.

[0081] On its narrow side walls 82, 82', which run longitudinally in the direction L when inserted, the electrical connection terminal 74 has opposing guide flanks 79, 79' which extend forward from the narrow side walls 82, 82' in the insertion direction E and have funnel-shaped insertion aids 80, 80' at their ends. This facilitates the insertion of the busbar connector 60e into the insertion opening 48e, particularly if the two ends of the busbars 8e, 108e arranged therein are not positioned perfectly in the insertion opening 48e.

[0082] To ensure mechanical contact between the two upwardly bent ends of the busbars 8e, 108e, spring contact tongues 81a-81e and 81a'-81e' are provided at the front ends (in the insertion direction E) of the wider side walls of the body 75, which run transversely to the longitudinal direction L and in the insertion direction E. The spring contact tongues 81a-81e and 81a'-81e' initially extend slightly outwards from each other in the longitudinal direction L and are then bent inwards and against the insertion direction E, as shown in the cross-section in Fig. 13 This is clearly visible. The distance AK between the adjacent ends of the spring contact tongues 81a-81e and 81a'-81e', which are opposite each other in the longitudinal direction L, is smaller than the combined thickness DK of the adjacent, bent ends of the busbars 8e, 108e in the longitudinal direction L. This ensures that the spring contact tongues 81a-81e and 81a'-81e' press the bent ends of the busbars 8e, 108e together. This is intended to ensure the best possible surface contact between the busbars 8e, 108e. The combined thickness DK of the adjacent, bent ends of the busbars 8e, 108e is the sum of the thicknesses D of the busbars 8e, 108e. Normally, the busbars 8e, 108e are of the same thickness, so the combined thickness DK is twice the thickness D. If necessary...However, busbars of different thicknesses can also be mechanically and / or electrically connected, whereby the combined thickness DK is then the sum of the two individual thicknesses of the two busbars.

[0083] Since there are several spring contact tongues 81a-81e and 81a'-81e' lying next to each other in the transverse direction Q, even slightly inclined ends of the busbars 8e, 108e can be pressed together well, thus enabling good electrical contact of the ends of the busbars 8e, 108e in the area of ​​the wide longitudinal sides 8g, 108g.

[0084] Furthermore, the free ends of the spring contact tongues 81a-81e and 81a'-81e' also contact the opposite sides of the wide longitudinal sides 8g, 108g of the ends of the busbars 8e, 108e, thus establishing a multitude of electrical contacts between the two busbars 8e, 108e via the electrically conductive connecting terminal 74 itself. Therefore, even if, during the passage of a sliding contact 32e, the ends of the busbars 8e, 108e are not in constant contact due to vibrations or the shear forces exerted on them by the sliding contacts 32e moving in the longitudinal direction L, the connecting terminal 74 provides an additional current transmission path.

[0085] The two functions complement each other: If the ends of the busbars 8e, 108e are moved apart so that their surfaces do not touch or only touch insufficiently, thus impairing the electrical contact between them, the opposite side of the bent ends of the busbars 8e, 108e is pressed more firmly against the opposing spring contact tongues 81a-e, 81a'-e', thereby establishing particularly good electrical contact between the spring contact tongues 81a-e, 81a'-e' and the respective busbars 8e, 108e. This can also occur, for example, if the busbars 8e, 108e contract and shorten at low temperatures.

[0086] Conversely, if the ends of the conductor rails 8e, 108e are pressed strongly together, for example due to temperature-related expansion of the conductor rails 8e, 108e or when the sliding contact 32e passes through the connecting element 40 and one of the conductor rails 8e, 108e is thereby moved in the direction of travel of the sliding contact 32e towards the other conductor rail 108e, 8e, the contact between the rear spring contact tongues 81a-e and the end of the conductor rail 8e may be slightly impaired or may even be temporarily lost completely due to jerky movement.On the other hand, this ensures good electrical contact between the surfaces of the wide longitudinal sides 8g, 108g of the bent ends of the conductor rails 8e, 108e that are pressed together, due to the contact pressure that then acts in the direction of travel, and also additionally presses the spring contact tongues 81a'-e' located on the front side in the direction of travel even more strongly against the ends of the conductor rail 108 that is front in the direction of travel.

[0087] Therefore, the electrical connection terminal 74, due to its double-sided spring contact tongues 81a-e, 81a'-e', makes it possible in every case to establish and maintain a good electrical connection between the busbars 8e, 108e.

[0088] Preferably, the distance AQ between the longitudinally L extending, opposing narrow side walls 82, 82' of the connecting terminal 74 in the transverse direction Q corresponds to the width B of the upwardly bent ends of the busbars 8e, 108e. If necessary, an additional electrical contact can be provided by the additional contact points of the side walls 82, 82' on the narrow longitudinal sides 8g, 108g of the upwardly bent ends of the busbars 8e, 108e in order to further improve current transmission. The opposing guide flanks 79, 79' can also be extensions of the side walls 82, 82' at a distance AQ from each other, so that the guide flanks 79, 79' also contact the narrow longitudinal sides 8g, 108g of the upturned ends of the busbars 8e, 108e and thus provide additional electrical contact to further improve current transmission.

[0089] The electrical energy transfer between the busbars 8a-e and 108a-e of adjacent sections 2a, 2b of the conductor rail 2 thus takes place in addition to the contact of the ends of the busbars 8e, 108e also via the connecting terminal 74, so that even in the event of dynamic changes in the contact between the busbars 8e, 108e, e.g. when passing through the sliding contact 32e, a sufficient and permanent electrical connection is ensured.

[0090] The descriptions of the busbars 8e, 108e and the busbar connection terminal 74 and busbar connector 60e connecting them also apply accordingly to the connection of the other busbars 8a-d, 108a-d. Bezugszeichen

[0091] 1 Conductor system 2 Conductor, in particular box conductor 2a, 2b Sections of conductor 3 Box-shaped frame profile 4 Longitudinal slot 5a, 5b Track surfaces 6a, 6b Lateral roller guide webs 7a-e Conductor rail brackets 8a-e Conductor rails 8f Wide longitudinal side of the conductor rails 8g Narrow longitudinal side of the conductor rails 8h End face of the conductor rails 9a-e Conductor rail contact surfaces 10 Lateral guide groove 20 Current collector carriage 21 Frame 22, 23 Running rollers (bottom) (Double flanged rollers) 24, 25 Guide rollers (top) (Double flanged rollers) 26a, 26b, 27a, 27b Wheel flanges of running rollers 28a, 28b, 29a, 29b Running surfaces of running rollers 30a, 30b, 31a, 31b Wheel flanges Guide rollers 32c, 32f Sliding contacts (grounding sliding contacts) 32a, b, d Sliding contacts (phase sliding contacts) 32e Sliding contact (zero potential sliding contact) 33 Funnel-shaped cable channel 34 Lateral guide rib 40 Connecting element 41, 41' First orsecond partial connecting element 42, 42'connecting contour 43, 43'connecting profiles 44, 44'side connecting tabs 45, 45'side connecting openings 46, 46'upper U-shaped locking tabs 47, 47'upper locking lugs 48a-eInsertion opening for rail connector 49e, 49e'Locking webs for locking lugs Clamping head 50e, 50e'Positioning stops 51Longitudinal slot 60a-eCable rail connector 61a-emushroom-shaped clamping head 62, 62'Clamping head parts 63, 63', 64, 64'Locking lugs for insertion opening 65, 65'U-shaped locking tabs 66, 66'side locking lugs 67, 67'Cover 68, 68'Overlap 69, 69'Positioning tabs, positioning elements 70Receiving space for electrical connection terminal 71, 71'Upper stops for electrical connection terminal 72, 72'Positioning pins for electrical connection terminal 73Funnel-shaped insertion opening for busbar ends 74ElectricalConnecting terminal (busbar connecting terminal) 75 circumferential body 76 dovetail connection 77, 77'upper stops 78, 78'positioning openings for positioning pins 79, 79'guide flanks for busbar ends 80, 80'funnel-shaped insertion aids 81a-e, 81a-e'spring contact tongues 82, 82'narrow side walls 103box-shaped frame profile of the second section 104longitudinal slot 105a, 105btrack surfaces 106a, 106blateral roller guide webs 108a-ebusbars 108fwide longitudinal side of the busbars 108gnarrow longitudinal side of the busbars 108hend face of the busbars 109a-egripping surface busbars 110lateral guide groove . AK Distance between opposing contact elements in the longitudinal direction AQ Distance between narrow side walls in the transverse direction B Width of a busbar D Thickness of a busbar DK Combined thickness of the busbars E Insertion direction of busbar connector in insertion opening H Vertical direction of box conductor, connecting element L Longitudinal direction of box conductor, connecting element Q Transverse direction of box conductor, connecting element I Interior of box conductor V Interior of connecting element

Claims

1. Busbar connection terminal (74) for electrically and mechanically connecting a first free end of a first busbar (8a-e) extending in a longitudinal direction (L) with a second free end of a second busbar (108a-e) extending in the longitudinal direction (L), wherein the first and second ends each have an end face (8h, 108h) closing the busbars (8a-e, 108a-e) and longitudinal sides (8f-g, 108f-g) adjoining it at an angle, wherein the first and second ends are angled relative to the longitudinal direction (L) such that the end faces (8h, 108h) point substantially in the same insertion direction (E) in which the busbar connection terminal (74) is placed on the ends of the busbars (8a-e, 108a-e) and a longitudinal side (8f) of the first end and a longitudinal side (108f) of the second end face each other. are,wherein the busbar connection terminal (74) has first contact elements (81a-e) for clamping on the longitudinal side (8f) of the first end and second contact elements (81a'-e') opposite the first contact elements (81a-e) in the longitudinal direction (L) for clamping on the longitudinal side (108f) of the second end, , characterized by the fact that a distance (AK) between the first and second contact elements (81a-e; 81a'-e') is smaller than a combined thickness (DK) of the first and second ends of the busbars facing each other (8a-e, 108a-e).

2. Busbar connection terminal (74) according to claim 1, characterized by the fact thatthe contact elements (81a-e; 81a'-e') initially extend in the insertion direction (E) and then their free ends are bent back against the insertion direction (E), wherein the free ends of the contact elements (81a-e; 81a'-e') are bent towards each other, in particular wherein the distance (AK) of the first and second contact elements (81a-e; 81a'-e') is preferably determined by the distance of the free ends of the contact elements (81a-e; 81a'-e') bent towards each other.

3. Busbar connection terminal (74) according to claim 2, characterized by the fact that the first and second contact elements (81a-e; 81a'-e') widen in a funnel shape in the insertion direction (E) and / or that the free ends of the first and second contact elements (81a-e; 81a'-e') initially point towards each other and then away from each other against the insertion direction (E).

4. Busbar connection terminal (74) according to one of the preceding claims, characterized by the fact thatthe first contact elements (81a-e) have several adjacent contact tongues and the second contact elements (81a'-e') have several adjacent contact tongues, and / or that the busbar connection terminal (74) has a body (75) with an interior space for receiving the ends of the busbars (8a-e, 108a-e).

5. Busbar connection terminal (74) according to one of the preceding claims, characterized by the fact that The busbar connection terminal (74) in the insertion direction (E) of the busbar connection terminal (74) onto the ends of the busbars (8a-e, 108a-e) behind the contact elements (81a-e; 81a'-e') has stops (77, 77') for contacting corresponding stops (71, 71') of a clamping head (61a-e) (61a-e) of a busbar connector (60a-e), in particular wherein the stops (71, 71', 77, 77') preferably run transversely to the insertion direction (E).

6. Busbar connection terminal (74) according to one of the preceding claims, characterized by the fact thatthe busbar connection terminal (74) has opposing, funnel-shaped widening insertion aids (80, 80'), and / or that the insertion aids (80, 80') are arranged on guide flanks (79, 79') of the busbar connection terminal (74) extending in the insertion direction (E).

7. Busbar connection terminal (74) according to one of the preceding claims, characterized by the fact that the busbar connection terminal (74) has at least one positioning opening (78, 78') for a positioning element (72, 72'), in particular a positioning pin of a clamping head (62, 62') surrounding the busbar connection terminal (74) of a busbar connector (60a-e), in particular wherein the positioning opening (78, 78') is preferably adapted to the shape of the positioning element (72, 72').

8. Busbar connection terminal (74) according to claim 6 or 7, characterized by the fact thatthe positioning opening (78, 78') is provided in a side of the busbar connection terminal (74) that runs transversely to the longitudinal direction (L) and / or transversely to the insertion direction (E), and / or that the busbar connection terminal (74) has a further positioning opening (78') opposite the positioning opening (78).

9. Busbar connection terminal (74) according to one of the preceding claims, characterized by the fact thatthe busbar connection clamp (74) consists of a flat and / or strip-shaped material, in particular wherein the busbar connection clamp (74) is preferably punched or laser-cut from the flat and / or strip-shaped material and subsequently bent into the three-dimensional shape of the busbar connection clamp (74), and / or wherein edges of the flat material to be joined are preferably connectable or connected to each other by means of a positive locking connection, in particular a dovetail connection (76).

10. Busbar connection terminal (74) according to one of the preceding claims, characterized by the fact thatthe busbar connection terminal (74) has opposing, electrically conductive side walls (82, 82') which contact the longitudinal sides (8g, 108g) of the bent free ends of the busbars (8a-e, 108a-e) lying transversely to the longitudinal direction (L), in particular the narrow longitudinal sides (8g, 108g) of the bent free ends of the busbars (8a-e, 108a-e), in particular wherein a distance (AQ) of the opposing, electrically conductive side walls (82, 82'), in particular transversely to the longitudinal direction (L), is equal to or less than a width (B) of the, in particular wide, longitudinal sides (8f, 108f) of the bent free ends of the busbars (8a-e, 108a-e), in particular transversely to the longitudinal direction (L).

11. Busbar connector (60a-e) for insertion in an insertion direction (E) into an insertion opening (48a-e) of a connecting element (40) for adjacent sections (2a, 2b) of a conductor rail (2), with a clamping head (61a-e) (61a-e) for receiving an electrical busbar connection terminal (74), characterized by the fact thatthe busbar connection terminal (74) is designed according to one of claims 1 to 10.

12. Busbar connector (60a-e) according to claim 11, characterized by the fact that The clamping head (61a-e) preferably has longitudinally (L) projecting overhangs (68, 68') with positioning elements (69, 69') which cooperate with positioning stops (50e, 50e') on the insertion opening (48a-e) for positioning and / or fastening the clamping head (61a-e) in the insertion opening (48a-e).

13. Busbar connector (60a-e) according to claim 11 or 12, characterized by the fact that the clamping head (61a-e) has a receiving space (70) for receiving the busbar connection terminal (74), in particular wherein the receiving space (70) for holding the clamping head (61a-e) preferably has locking tabs and / or locking lugs (63, 63', 64, 64') which preferably interact with corresponding locking tabs (49e, 49e') and / or locking lugs on the clamping head (61a-e).

14. Busbar connector (60a-e) according to one of claims 11 to 13, characterized by - that the clamping head (61a-e) preferably has positioning elements (72, 72') extending transversely to the insertion direction (E) and preferably in the longitudinal direction (L), in particular positioning pins for corresponding positioning openings (78, 78') of the busbar connection terminal (74), and / or - that the two clamping head parts (62, 62') are identically designed, and / or - that the busbar connector (60a-e) is made of an electrically insulating material, in particular plastic, and / or - that one clamping head part (62, 62') has at least one locking tab (65, 65') extending preferably in the longitudinal direction (L) and the other clamping head part (62, 62') has a corresponding lateral locking lug (66, 66') extending preferably in the longitudinal direction (L), which interacts with the locking tab (65, 65'), and / or - thatthe clamping head (61a-e) has a cover (67, 67') located behind the busbar connection terminal (74) in the insertion direction (E) of the busbar connector (60a-e), which covers the busbar connection terminal (74) from the environment when the busbar connector (60a-e) is inserted into the insertion opening (48a-e), and / or - that The busbar connector (60a-e) has an insertion opening (73) in the insertion direction (E) in front of the busbar connection terminal (74), in particular widening in a funnel shape in the insertion direction (E), for inserting the ends of the busbars (8a-e, 108a-e) between the contact elements (81a-e, 81a'-e') into the receiving space (70).

15. Connecting element (40) for electrically and mechanically connecting longitudinally adjacent sections (2a, 2b) of the conductor rail (2), wherein the longitudinally extending (L) frame profiles (3, 103) surrounding an interior space (I) have an interior contour, wherein the interior space (I) is accessible from the outside via longitudinally extending (L) slots (4, 104) in the frame profiles (3, 103), in the interior space (I) several conductor rails (8a-e, 108a-e) are provided for sliding contact with each corresponding sliding contact (32a-f) of a current collector carriage (20) movable along the conductor rail (2), wherein the current collector carriage (20) has rotatably mounted rollers for movement in the longitudinal direction (L) along the conductor rail (2). (22, 23) exhibits, which with their running surfaces (28a, 28b, 29a, 29b) on corresponding track surfaces (5a, 5b, 105a,105b) of the frame profiles (3, 103) of the conductor rail (2) roll, wherein the connecting element (40) has a connecting profile (43, 43') adapted to the inner contour of the frame profiles (3, 103), to which connecting contours (42, 42') extend longitudinally (L) on both sides towards the subsections (2a, 2b) and adapted to the outer contours of the frame profiles (3, 103) for gripping the frame profiles (3, 103), wherein the connecting profile (43, 43') is divided into a first and a second connecting profile (43, 43'), , characterized by the fact that On the first and second connecting profiles (43, 43') a portion of insertion openings (48a-e) for busbar connectors (60a-e) according to one of claims 11 to 14 is provided, into which the busbar connectors (60a-e) can be inserted when the first and second connecting profiles (43, 43') are assembled.

16. Connecting element (40) according to claim 15, characterized by the fact thatthe insertion openings (48a-e) have locking tabs (49e, 49e') or locking lugs for locking with corresponding locking lugs (63, 63', 64, 64') or locking tabs of the busbar connectors (60a-e) in the respective insertion opening (48a-e).

17. Connecting element (40) according to claim 15 or 16, characterized by the fact thata lateral connecting opening (68) is provided on the first connecting profile (43), into which a lateral connecting tab (47') arranged on the second connecting profile (43') and projecting longitudinally (L) over it to the first connecting profile (43) engages for fastening the two connecting profiles (43, 43') to each other, in particular wherein a lateral connecting opening (48') is provided on the second connecting profile (43'), into which a lateral connecting tab (67) arranged on the first connecting profile (43) and projecting longitudinally (L) over it to the second connecting profile (43') is provided for further fastening the two connecting profiles (43, 43') to each other.

18. Connecting element (40) according to one of claims 15 to 17, characterized by the fact thata locking tab (46) is provided on the first connecting profile (43) which interacts with a locking lug (47') arranged on the second connecting profile (43'), wherein when the connecting profiles (43, 43') are assembled longitudinally (L), the locking tab (46) is pushed over the locking lug (47') and engages with it, and wherein preferably a further locking tab (46') is provided on the second connecting profile (43') which interacts with a further locking lug (47) arranged on the first connecting profile (43), wherein when the connecting profiles (43, 43') are assembled longitudinally (L), the further locking tab (46') is pushed over the further locking lug (47) and engages with it, and / or that the connecting profile(s) (8a-e, 108a-e) is box-shaped.

19. Conductor rail (2) with longitudinally adjacent subsections (2a, 2b), wherein the subsections (2a, 2b) have longitudinally extending frame profiles (3, 103) surrounding an interior space (I) and having an inner contour, wherein the interior space (I) is accessible from the outside via longitudinally extending slots (7) in the frame profiles (3, 103), wherein several conductor rails (8a-e, 108a-e) are provided in the interior space (I) for sliding contact with each corresponding sliding contact (32a-f) of a current collector carriage (20) movable along the conductor rail (2), wherein the current collector carriage (20) has rotatably mounted running rollers (22, 23) for movement in the longitudinal direction (L) along the conductor rail (2), the running surfaces (28a, 28b, 29a, 29b) roll on corresponding track surfaces (5a, 5b) of the frame profiles (3, 103) of the conductor rail (2), characterized by the fact thatA connecting element (40) according to one of claims 15 to 18 is provided for connecting the partial sections (2a, 2b) of the conductor rail (2).

20. Conductor line (2) according to claim 19, characterized by - that the first end of the first conductor rail is angled away from the interior of the conductor rail at an angle of 85° to 90°, preferably at an angle of 90°, relative to the longitudinal direction, and the second end of the second conductor rail is angled away from the interior of the conductor rail at an angle of 90° to 85°, preferably at an angle of 90°, relative to the longitudinal direction, and / or - that the bent ends of the busbars (8a-e, 108a-e) protrude into insertion openings (48a-e) of the connecting element (40a-e) and are each gripped by electrical busbar connection terminals (74), and / or - thatthe busbars (8a-e, 108a-e) consist of a ribbon-shaped material, in particular wherein wider ribbon surfaces of the busbars (8a-e, 108a-e) form sliding surfaces (9a-e; 109a-e) for the sliding contacts (32a-f), and / or - thatThe first busbar (3a-e) has an end face (8h, 108h) terminating its first end and the second busbar (108a-e) has an end face (8h, 108h) terminating its second end and longitudinal sides adjoining it at an angle, wherein the first and second ends each have an end face (8h, 108h) terminating the busbars (8a-e, 108a-e) and longitudinal sides (8f-g, 108f-g) adjoining it at an angle, wherein the first and second ends are angled relative to the longitudinal direction (L) such that the end faces (8h, 108h) point substantially in the same insertion direction (E) in which the busbar connection clamp (74) is placed on the ends of the busbars (8a-e, 108a-e) and a longitudinal side (8f) of the first end and a longitudinal side (108f) of the second end face each other.

21. Use of a busbar connection terminal (74) according to one of claims 1 to 10 for electrical and mechanical connection of the first free end of the first busbar (8a-e) extending in a longitudinal direction (L) with the second free end of the second busbar (108a-e) extending in the longitudinal direction (L).

22. Use of a busbar connector (60a-e) according to one of claims 11 to 14 in a connecting element (40) according to one of claims 15 to 18.

Images