DE102019126950A1 - Conductor rail for lights or electrical units - Google Patents

Abstract

In the case of a busbar with several busbar sections (10, 20) that can be connected to one another, each of which has at least one longitudinally running line for power supply and / or signal transmission, in grooves (13, 23), which are open towards one contacting side, of a line receiving structure made of an insulating material (12, 22), electrical connectors (30) are provided in the connection area of two successive busbar sections (10, 20), to which the front ends of two line sections (11, 21) to be connected to one another are connected, the electrical connectors (30) connect the line sections (11, 21) on a rear side opposite the contacting side.

Description

The present invention relates to a power rail for lights or electrical units and a light strip system which has such a power rail.

Busbars are characterized in that the wires or lines used for power supply are accessible or contactable over an at least larger elongated section, which opens up the possibility of being able to position consumers to be connected more or less flexibly at least over this area. This means that the consumers - for example the lights of a trunking system - can not only be arranged at fixed, predetermined positions, but can also be positioned freely at the desired location.

A well-known trunking system in which such conductor rails are used is sold by the applicant under the name “TECTON”. A special feature of this trunking system is that the lines used for power supply provide a normal mains supply voltage of e.g. 250 volts and are still continuously accessible for contacting over the entire length of the trunking system. This is achieved, among other things, in that the lines are arranged in a line receiving structure made of an insulating material, which forms grooves that are open towards one contacting side. From this side, the lines can then be contacted by lights or other consumers connected to the trunking system, whereby the grooves and the individual components of the line receiving structure are designed in such a way that accidental contact with the current-carrying lines is prevented or the corresponding safety regulations are implemented which should be prevented from accidentally touching the cables.

In principle, the power rail used in the above-mentioned trunking system could be implemented in any length. For manufacturing reasons, however, the line receiving structure consisting of the insulating material or the support rail containing the line receiving structure, which is the load-bearing element of the trunking system, is only manufactured and transported up to a certain length. Correspondingly, in the system known from the prior art, corresponding support rails equipped with sections of a busbar are made available in standard lengths, the support rails and the busbar sections then having to be connected to one another when the trunking system is installed on site.

Another special feature of the “TECTON” trunking system mentioned is that it is also possible to position lights or other loads and establish contact in the area where two consecutive support rails or conductor rail sections are connected. This is made possible by the use of special electrical connection contacts, such as those in 15th are shown.

15th shows a single electrical connection contact as it is currently used in the "TECTON" system and, for example, from the EP 1 284 033 B1 is known. This connection contact 100 consists of an elongated contacting plate that is curved on its long sides 101 whose function is to take over and forward the electrical current of the lines that run along the busbar. At the ends of the contacting plate 101 are spring contacts for this purpose 102 arranged, which enable the clamping contact of the end regions of the wires of two current sections to be connected to one another.

How 16 shows, are also in the transition area of two mounting rails to be connected to one another 105 (The front end area of a mounting rail is shown here, which is to be connected to another structurally identical mounting rail) of the trunking system connecting elements 106 provided which the reception of the electrical connection contacts 100 serve. These fasteners 106 have groove-like recesses corresponding to the grooves of the line receiving structure 107 on, the electrical connection contacts 100 such in the connecting element 106 are used that over the groove-shaped recesses 107 the contacting plates 101 the connection contacts 100 are accessible. The recesses 107 of the connecting element 106 So continue the grooves of the line receiving structure and the contacting plate 101 bridges the lines of the busbar sections to be connected to one another. Ultimately, this means that there is always a contact option for lights or consumers to be connected in the connection area, so that in the known light strip system there is actually the possibility of contacting uninterrupted over the entire length. As a result, an outstanding flexibility is achieved in comparison to other known systems with regard to the possibility of arranging lights or other electrical units.

In addition to the connection elements described above, which are very advantageous with regard to the contacting options, other solutions are also known from the prior art for connecting busbar sections to one another. A The widespread and simple solution here is that the interface between two busbar sections to be connected is bridged by a cable harness which has corresponding contacting elements at both ends that contact all the lines of the busbar and then to each other via a single cable of the cable harness are connected. Obviously, however, this means that in this solution, at least the end areas of the two busbar sections are covered by the bridging and, accordingly, no contact for consumers is possible in the transition area.

The present invention is therefore based on the object of specifying an alternative possibility of coupling busbar sections to one another, whereby preferably there should continue to be a continuous contact possibility, but at least the non-contactable area should be reduced to a minimum in the longitudinal direction.

The object is achieved by a busbar with the features of the independent claims. Advantageous developments of the invention are the subject of the dependent claims.

The present invention proposes alternative connection options which, compared to the connection element used in the “TECTON” system described above, have a simpler structure. In spite of everything, even in the case of the solutions according to the invention, an almost complete contact possibility is achieved.

According to a first aspect of the invention, electrical connectors are used to connect two successive busbar sections, which connect the line sections to one another on a rear side opposite the contacting side.

According to this first aspect, a busbar for lights or electrical loads is proposed which has several busbar sections that can be connected to one another, with at least one longitudinal line for power supply and / or signal transmission being provided, which in grooves open to one contacting side of an insulating Material existing line receiving structure is arranged, wherein electrical connectors are provided in the connection area of two successive busbar sections, to which the front ends of two line sections to be connected are connected, and wherein according to the invention the electrical connectors connect the line sections on a rear side opposite the contacting side.

The rear connection of the line sections means that the front ends of the busbar sections to be connected can be brought together to an extremely small distance. In particular, a distance can be selected which ensures that the legal regulations with regard to preventing accidental contact with the current-carrying lines are complied with. At the same time, this means that the line to be contacted is only interrupted over an extremely short section or - as described below with reference to a preferred exemplary embodiment - in spite of everything, an in principle continuous contacting option is even created.

It is preferably provided here that the electrical connectors are formed by a socket contact connected to a first line section and a plug contact connected to the second line section. In particular, the plug contact can have a protruding, rod-like contact element which is provided for contacting the socket contact and is oriented essentially parallel to the line sections to be connected to one another. Both contact elements, i.e. socket contact and plug contact, are each arranged outside the line receiving structure on the rear side thereof, whereby they are then preferably each connected via a clamping contact to an end area of the line sections to be connected and the clamping contact through rear openings in the line receiving structure in the for mounting the Line sections provided groove engages. The above-described configuration of the electrical connector has the result that the busbar sections equipped with them can be connected to one another in a simple manner by a plugging process and the electrical connection is then immediately established. Thus, a simple connection option is created, which in particular also optimizes the assembly of the system.

As already mentioned, the solution according to the invention allows the end faces of the busbar sections to be connected to one another to be brought together very closely, so that only an extremely small gap remains. If a contact option is to be created in this intermediate space as well, a particularly preferred embodiment can provide that one of the line sections to be connected protrudes slightly beyond the line receiving structure and thus protrudes into this intermediate space. Of the Any remaining gap between the two line sections is thereby reduced to a minimum.

An alternative solution to the present object according to a second aspect of the present invention provides that a resilient pin contact protruding from the line receiving structure is arranged at the end region of one of the line sections and is designed to contact the opposite end of the further line section. In this case, when two busbar sections are joined together at the end, the end regions of the line sections are brought into direct contact with one another without an additional electrical connector having to be used for this purpose.

According to this second aspect of the invention, a busbar for lights or electrical loads is proposed, which has several interconnectable busbar sections, each having at least one longitudinally running line for power supply and / or signal transmission, which in grooves open to one contacting side of a insulating material existing line receiving structure is arranged, wherein at the end region of one of the two busbar sections to be connected to each other, the corresponding line section has a protruding pin contact with respect to the line receiving structure, which is designed to contact the opposite end of the further line section.

It is preferably provided here that the pin contact has an axially resiliently mounted contact element. This ensures, on the one hand, that the two ends of the line sections come into contact with sufficient force and, accordingly, a continuous electrical connection is ensured. On the other hand, the axially resilient mounting can also be used to absorb relative displacements of the two busbar sections at least to a certain extent. It can also be provided here that a bearing sleeve for the pin contact is arranged in the groove of the line receiving structure and consists of an electrically conductive material. A contact option for lights or other consumers is thus also created over the length of the bearing sleeve.

The busbar according to the invention preferably has a plurality of lines running parallel to one another. The proposed solutions make it possible in particular to have all lines run next to one another in one plane. This is due to the fact that the solutions take up very little space. An even closer routing of the lines can, however, be achieved according to an alternative variant if the lines with their associated connection measures run alternately in two different planes.

Overall, a possibility is thus created of coupling busbar sections to one another in a simple manner and, in spite of everything, creating an essentially seamless contacting possibility.

• 1 die Verbindung zweier Leitungsabschnitte einer Stromschiene gemäß einem ersten erfindungsgemäßen Aspekt in Explosionsdarstellung;
• 2 die gemäß dem ersten Ausführungsbeispiel ausgestalteten Stromschienenabschnitte vor dem Zusammenfügen;
• 3 die Stromschienenabschnitte im zusammengefügten Zustand;
• 4 eine mehradrige Stromschiene, welche gemäß dem ersten erfindungsgemäßen Aspekt zusammengeführt ist;
• 5 und 6 Darstellungen zur Verdeutlichung der Kontaktierungsmöglichkeiten im Bereich des Übergangs zwischen zwei Stromschienenabschnitten;
• 7 und 8 Darstellungen einer vorteilhaften Weiterbildung des ersten erfindungsgemäßen Ausführungsbeispiels;
• 9 und 10 Darstellungen einer zweiten vorteilhaften Weiterbildung des ersten erfindungsgemäßen Ausführungsbeispiels;
• 11 - 14 Ansichten einer Möglichkeit zur stirnseitigen Verbindung zweier Stromschienenabschnitte gemäß einem zweiten erfindungsgemäßen Aspekt;
• 15 einen aus dem Stand der Technik bekannten elektrischen Verbindungskontakt und
• 16 eine aus dem Stand der Technik bekannte Vorgehensweise zum Verbinden zweier aufeinanderfolgender Stromschienenabschnitte.

The invention will be explained in more detail below with reference to the accompanying drawing. Show it:

• 1 the connection of two line sections of a busbar according to a first aspect of the invention in an exploded view;
• 2 the busbar sections configured according to the first exemplary embodiment before being joined together;
• 3 the busbar sections in the assembled state;
• 4th a multi-core busbar which is brought together according to the first aspect of the invention;
• 5 and 6th Representations to clarify the contact options in the area of the transition between two busbar sections;
• 7th and 8th Representations of an advantageous development of the first exemplary embodiment according to the invention;
• 9 and 10 Representations of a second advantageous development of the first exemplary embodiment according to the invention;
• 11 - 14th Views of a possibility for the end-side connection of two busbar sections according to a second aspect of the invention;
• 15th an electrical connection contact known from the prior art and
• 16 a procedure known from the prior art for connecting two successive busbar sections.

Based on 1 - 3 will first be explained the connection of two busbar sections, each with a single line according to a first embodiment of the invention. As will be shown later, this exemplary embodiment can, however, easily be expanded to include multi-core busbars.

1 shows the components forming the first exemplary embodiment in an exploded view, initially with two busbar sections 10 and 20th are shown to be connected to each other. Every busbar section 10 , 20th here has a line section 11 or. 21 on, which is preferably in the form of a copper line. These line sections are known in the art 11 or. 21 in corresponding management structures 12th or. 22nd arranged, which consist of an insulating material and are designed such that they contact the lines 11 , 21 enable from one contacting side. For this purpose, the line reception structures form 12th , 22nd longitudinally extending channels 13th , 23 , which towards the contacting side, in the representation in 1 are open to the bottom and in which the lines 11 , 21 are included. The lines 11 , 21 are thereby protected from accidental contact, as the receiving channels 13th , 23 are designed such that touching the surface of one of the conductors 11 , 21 is excluded by a user. The relevant standards for this require that a so-called test finger, which will be explained in more detail below, not so far into the receiving channels 13th or. 23 that he can penetrate the lines 11 , 21 touched.

If several such busbar sections are joined together to form an elongated busbar, it must be ensured in spite of everything that an electrical connection between the line sections 11 and 21 is present. In the first embodiment according to 1 it is provided for this purpose that a with the reference number 30th provided electrical connector is used, which is used when the end-to-end joining of the busbar sections 10 , 20th automatically establishes the desired electrical connection.

The electrical connector of the invention 30th is formed in two parts in the illustrated embodiment and has a socket contact on the one hand 32 and on the other hand a plug contact 34 on. How 2 shows in more detail are socket contact 32 and plug contact 34 before joining the busbar sections 10 , 20th already arranged on these, then when joining the busbar sections 10 , 20th a rod-like contact element 35 of the plug contact 34 in the socket contact 32 intervenes, so that ultimately the in 3 recognizable connection is obtained. The socket contact 32 has a clamp-spring contact for this purpose 33 on, in which the frontally tapering end of the rod-like contact element 35 is inserted. The spring contact 33 on the one hand ensures that there is a reliable electrical connection, on the other hand a mechanical clamping force is also achieved which prevents the two busbar sections from being unintentionally detached 10 , 20th from each other at least difficult.

Both socket contact 32 as well as plug contact 34 are, as already mentioned, before the busbar sections are joined together 10 , 20th already connected to these, but in particular to the respective line sections 11 , 21 connected. Corresponding terminal contacts are provided for this 36 provided which in the receiving channels 13th or. 23 the management structures 12th , 22nd intervene and here the line sections 11 , 21 grip around with clamping force. The management structures 12th , 21 For this purpose, have openings or recesses in the form of, for example, slots on the rear side opposite the contacting side 15th , 25th on which the arms of the terminal contacts 36 can intervene. The components of the electrical connector 30th are thereby sufficiently attached to the respective busbar sections 10 and 20th secured, so that by a simple plug-in movement of both busbar sections 10 , 20th towards each other the electrical connection can be achieved. Ultimately, in the assembled state there is an arrangement as shown in FIG 3 is recognizable.

3 also shows that, in the assembled state, the end regions of both line receiving structures 12th , 22nd have only a small distance d from one another. In particular, this distance d is dimensioned in such a way that the test finger shown here does not have any of the two line sections 12th , 22nd , but especially not any components of the electrical connector 30th can touch.

The distance d between the two busbar sections 10 or. 20th is preferably selected in such a way that the requirements of the relevant standard are also met, taking into account the thermal expansion and manufacturing tolerances. In particular, it is preferably provided that the test finger - as shown - can actually only dip into the remaining gap to a very small extent, since this - as explained in more detail below - opens up the possibility of even further improving the contacting options in the transition area.

First, however, using 4th It is made clear that the first exemplary embodiment of the connection according to the invention of two busbar sections can also be easily extended to multi-core busbars. It can be seen that in this case, corresponding electrical connectors are then used for each individual line section to be connected on the rear side of the line receiving structure 30th are provided. As the individual components of the electrical connector 30th in a direction perpendicular to the longitudinal direction of the busbar 10 , 20th occupying only a small width and in particular not exceeding the width of an individual channel of the line receiving structure is a lateral arrangement of several electrical connectors 30th side by side, like this in 4th is shown, easily possible.

In the 4th The arrangement shown is then preferably received in the support rail profile of an elongate support rail (not shown). The mounting rail profile must then of course be designed in such a way that the components of the electrical connector 30th find suitable space. For this purpose, the conductor levels are spaced from the rear wall of the support profile in accordance with the increased space requirement. The connector area is preferably isolated from the mounting rail profile. This is usually done by means of appropriate connector elements, brackets, busbar features.

The rod-like contact elements are seen from the underside, that is to say the contacting side 35 not accessible, not even for the contacting elements of consumers to be connected to the busbar. This is shown schematically in 5 a contact element 50 , which, for example, can be part of a lamp to be connected to the busbar or of another consumer and a contact tongue 51 has, which is designed in a known manner in the receiving channels 13th or. 23 of the wire support structures 12th , 22nd intervene and here the lines 11 , 21 to contact. Is now like in 5 shown the contact tongue 51 made very narrow, there is at least the theoretical possibility of positioning the consumer to be connected in such a way that the tongue 51 exactly in the gap of the transition between two busbar sections to be connected to one another 10 , 20th is positioned. Here the tongue can 51 neither the line sections 11 , 21 nor the rod-like contact element 35 to reach. Accordingly, in the embodiment shown, there is an interruption with regard to the contacting possibility, at least within very certain limits.

To circumvent this problem, you can choose between different solutions, which are based on the following 6th - 10 should be explained in more detail.

A simple solution would be according to 6th for example consist of consumers with double contacts 50 , 52 , which are arranged side by side to design. The contact tongues 51 and 53 of the double contact have a distance D from one another which - ideally clearly - exceeds the gap width d. This ensures that in principle at least one of the two contacts 50 , 52 with his contact tongue 51 or. 53 on a line section of the two busbar sections 10 , 20th meets.

In the 6th However, the solution shown then also requires a doubling of the contact securing means. If, for example, it is to be ensured that a current flow of, for example, 2 amperes is enabled via the contacting of the lines, then each of the two individual contacts must 50 , 52 alone ensure a current flow of 2 amps, which means that in most situations even 4 amps are guaranteed, since there is usually double contact with both contact blades 51 , 53 will hit the line sections.

Another solution, not shown in the figures, would consist in the contact tongue 51 of the contact 50 to be widened in such a way that they are wider than the largest possible gap between the interconnected busbar sections 10 , 20th is. In this case, too, it is ensured that the contact tongue 51 always meets at least one line section, although this variant also requires a somewhat oversized configuration of the components provided for contacting.

Finally, it would also be conceivable to configure the consumers to be connected in such a way that either the contact tongue 51 or all of the contact 50 is designed to be easily movable. In the event that actually exactly at the interface between two adjacent busbar sections 10 , 20th the arrangement of a consumer is to be made, the contact may then have to be made 50 or the contact tongue 51 can be shifted slightly, if otherwise no reliable contacting of the busbar is guaranteed.

The measures described so far, which also made it possible to make contact with the busbar in the transition area, concerned the design of the consumer itself or of the contacting element of the consumer. Another possibility to create an almost continuous contact, however, is in the 7th and 8th or. 9 and 10 shown.

Here is in the 7th and 8th recognizable that one of the two line sections 11 , 21 via the line acceptance structure 12th , 22nd protruding is slightly extended or is provided with a protruding contact. In the illustrated embodiment is a short sleeve 27 provided, which over the line receiving structure 22nd protrudes and into the remaining gap between the two busbar sections 10 , 20th protrudes. The use of the sleeve 27 leads to a very small design and its expression does not serve to electrically connect the two conductor ends. You should only protrude into the gap and thereby extend one of the two ends of the conductor.

Because the distance between the two insulating line receiving structures 12th , 22nd is dimensioned such that - as in 8th shown - the test finger in turn cannot dip into the gap so far that it touches the protruding conductor area or the sleeve 27 in turn, compliance with the relevant standard, which is intended to prevent accidental contact with live components, is guaranteed.

In addition to the shape of the illustrated sleeve, basically any type of extension is conceivable that does not collide in its extension with the opposite end of the line. Lateral ladder walls are also conceivable 28 along the circumference of the conductor, for example. Formed from elongated spring forms of the terminal contacts, as shown in 9 and 10 are shown. Here, however, particular care should be taken that the extension has the cross section of the line sections to be connected to one another 11 , 21 do not increase significantly, since a compact arrangement of the lines is still desired.

With the variants of the 7th - 10 then ultimately results in the connected state, as it is in the 8th and 10 is shown, again an almost complete contact option. The remaining gap between the front end of the conductor on the one hand and the end of the extension 27 or. 28 on the other hand, it is so small that it is guaranteed in any case that a contact tongue of a consumer can touch live parts.

Another possibility for connecting line sections according to a second aspect of the invention is shown in FIG 11 - 14th shown, initially 11 shows an exploded view of the arrangement.

Again, two busbar sections should be 110 , 120 are connected to one another, with corresponding line receiving structures within 112 , 122 corresponding line sections 111 , 121 run away. In the solution proposed here, it is now provided that when joining the busbar sections 110 , 120 the lines 111 , 121 are immediately squeezed in order to achieve contact. For this purpose, it is provided in particular that an end region of one of the two lines 111 , 121 , in this case the management 121 with a protruding pin contact 130 is formed, the end region of which is the end face of the other line section 111 should touch and contact. In particular, it is provided that the pin contact 130 axially resilient and aligned with the associated line section 111 , 121 is stored, so that it is permanently on the line end when joining with a corresponding spring force 111 presses and thus a permanent electrical contact is guaranteed even in the event of a possible relative displacement to one another.

The resilient mounting of the pin contact 130 is made with the help of a bearing sleeve 135 allows that in the end area of the line support profile 122 is integrated and at its rear end with the actual line 121 connected is. Inside the bearing sleeve 135 is a spiral spring 136 arranged, which with its front end against a rear end of the pin contact 130 presses. A ring-like widening 131 at the pin contact 130 this prevents the spring 136 the pin contact 130 over the front end of the sleeve 135 pushes out or the pin contact 130 out of the sleeve 135 falls.

Either the pin contact 130 itself or the opposite end of the conductor 111 in this case has a shell-like or funnel-like extension which makes it easier to bring the contacting end faces together. In the 11 and 13th is the opposite end of the conductor 111 with a corresponding exception 116 provided with the 12th and 14th indicates the pin contact 130 the corresponding extension 138 on.

Before the busbar sections are joined together, there is a configuration as shown in FIG 14th is shown. It can be seen here that the pin contact is again 130 with its end area over the line receiving structure 122 protrudes, so that when the two busbar sections are joined together 110 , 120 will actually come into contact with the front end of the ladder. In the assembled state, the result is a configuration as shown in the section in 13th is shown, it can be seen that with the help of the spiral spring 136 the pin contact 130 actually presses permanently against the opposite end of the conductor.

The pin contact 130 and the outer circumference of the bearing sleeve made of a conductive material 135 ensure that there is always a contact option for consumers to be connected. Again, a completely flexible arrangement of lights or consumers is made possible.

Also in the illustrated second exemplary embodiment according to the invention, the busbar sections to be connected to one another can have a plurality of conductors running parallel to one another. In all of the exemplary embodiments shown, it would be conceivable to arrange the lines in one plane. If necessary, however, a storage could also be used of the lines are made in such a way that they run in two different planes, in particular alternately in two different planes. This wave-like arrangement of the lines of the busbar possibly enables an even more compact arrangement of the lines seen in the transverse direction, since this makes it easier to maintain appropriate minimum distances with respect to the required creepage distances. The resulting different depths with regard to the surfaces of the lines to be contacted must then, however, be taken into account for the corresponding consumers. On the one hand, this leads to a certain amount of additional work in the implementation of the contacting elements of the consumers, on the other hand, the number of available contactable lines can be increased, thereby creating additional contacting options. These can then be used to optionally assign the loads to be connected to different power supply circuits so that they each fulfill a corresponding special function.

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• EP 1284033 B1 [0006]

Claims (14)

Busbar for lights or electrical units, with several busbar sections (10, 20) that can be connected to one another, each of which has at least one longitudinally running line for power supply and / or signal transmission, which in grooves (13, 23) open to one contacting side is one of a insulating material existing line receiving structure (12, 22) is arranged, electrical connectors (30) being provided in the connection area of two successive busbar sections (10, 20) to which the front ends of two line sections (11, 21) to be connected are connected, characterized in that the electrical connectors (30) connect the line sections (11, 21) on a rear side opposite the contacting side. Busbar after Claim 1 , characterized in that the electrical connectors (30) comprise a socket contact (32) connected to a first line section (11) and a plug contact (34) connected to the second line section (21). Busbar after Claim 2 , characterized in that the plug contact (34) has a protruding, rod-like contact element (35) which is provided for contacting the socket contact (32) and is oriented essentially parallel to the line sections (11, 21) to be connected to one another. Busbar after Claim 2 or 3 , characterized in that the socket contact (32) and the plug contact (34) are each arranged outside the line receiving structure (12, 22) on the rear side thereof. Busbar after Claim 4 , characterized in that the socket contact (32) and the plug contact (34) are each connected via a clamping contact (36) to an end region of the line sections (11, 21) to be connected, the clamping contact (36) through openings (15, 25) in the line receiving structure (12, 22) engages in the groove (13, 23) provided for mounting the line sections (11, 21). Busbar according to one of the preceding claims, characterized in that one of the line sections (11, 21) to be connected protrudes beyond the line receiving structure (12, 22) or is provided with an extension (27, 28). Busbar after Claim 6 , characterized in that the extension is formed by a sleeve (27) made of an electrically conductive material. Busbar for lights or electrical consumers, with several busbar sections (110, 120) that can be connected to one another, each of which has at least one longitudinally running line for power supply and / or signal transmission, which are inserted in grooves, which are open towards one contacting side, of a line receiving structure made of an insulating material ( 112, 122), with electrical connectors being provided in the connection area of two consecutive busbar sections (110, 120) to which the front ends of two line sections (111, 121) to be connected to one another are connected, characterized in that the electrical connector has a comprises pin contact (130) arranged at the end region of one of the line sections (111, 121) and protruding from the line receiving structure (112, 122), which pin contact is designed to contact the opposite end of the further line section (111, 121) is. Busbar after Claim 8 , characterized in that the pin contact (130) is mounted in an axially resilient manner. Busbar after Claim 9 , characterized in that a bearing sleeve (135) for the pin contact (130) is arranged in the groove of the line receiving structure (112, 122) and consists of an electrically conductive material. Busbar according to one of the Claims 8 to 10 , characterized in that the pin contact (130) or the opposite end of the line section (111) to be connected to the pin contact has an extension, in particular a shell-like or funnel-like extension. Busbar according to one of the preceding claims, characterized in that it has several lines running parallel to one another. Busbar after Claim 12 , characterized in that all lines run in one plane. Busbar after Claim 12 , characterized in that the lines run alternately in two mutually offset planes.

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