DE10025648B4 - Busbar system - Google Patents

Abstract

Busbar system for luminaires
with a plurality of modular interconnectable U-shaped mounting rails (1) and one of the support rails (1) held Stromleitprofil which in the longitudinal direction of the support rails (1) extending and accessible from a contacting side grooves (11) for receiving wires for the power supply and / or transmission of control signals,
wherein for connecting the Stromleitprofile of two adjacent support rails (1), a connecting element (31) is provided which grooves corresponding to the grooves (11) of the Stromleitprofile groove-shaped recesses (32), in each of which a metal connector (35) is inserted, to which the in the grooves (11) of the Stromleitprofile to be arranged and interconnected wires (6) are connectable from both sides,
wherein the metal connectors (35) consist of an elongate contacting plate (37), at each of whose ends a U-shaped spring element (38) with an inwardly bent spring tongue (39) for clamping the wires (6) to be connected to the metal connector (35). is arranged.

Description

The The present invention relates to a bus bar system for luminaires according to the preamble of claim 1 and a connecting element.

Busbar systems or strip lights find in more diverse Form use, since they are opposite permanently installed or installed luminaires have high flexibility in the individual planning of lighting structures for specific Offer requirements. Thus, the busbar systems consist of several individual elements composed according to the modular principle so that the whole Arrangement to be adapted to the lighting premises can. Light-band systems are known with which not only two-dimensional, but also three-dimensional structures can be formed.

The backbone a busbar system is formed by mounting rails, the to the desired Structure are assembled and the holder of the power supply and control cables and the individual lights serve. The mounting rails have to therefore a high stability own and usually exist made of metal. You can have different shapes, for example, are mounting rails known with a Y-profile or an A-profile. Most widely used however U-shaped Support rails, which with its center leg to a support, for. B. a ceiling or room wall are attached. On the mounting rails the individual lighting modules are attached, usually the length of one individual mounting rail is a multiple of the length of the luminaire modules. For example are mounting rails with a length of 3 m or 4.50 m, if the luminaire modules are a length of Have 1.50. Such integer aspect ratios are chosen to to simplify planning in the design of a lighting system.

Around the power supply for to ensure the lights run on or within the Guideways corresponding lines. In addition, in addition to the lines to Power also other lines for the transmission of control signals be provided, which opens up the possibility at Using a suitable control system the individual lights individually to control and dimming.

at a known light-band system, by the applicant under the Designation "Lichtbandsystem ZX "distributed is, run the lines in the form of a through-wiring within the U-shaped DIN rails, being at regular intervals, the the length correspond to the lighting modules, Abgriffbuchsen are arranged. The Abgriffbuchsen be caught in the DIN rails, wherein Undercuts corresponding inward projections of the Behind the carrier rails. At the predetermined by the Abgriffbuchsen Can place The lights modules are mounted by pointing to the bottom open mounting rails are placed and fastened. The contact the lines are over a contacting element located on the luminaire modules, which connection contacts which, when placing the luminaire module on the mounting rail in openings engage the pick - up bushing with the corresponding wires in Contact us. Furthermore, the luminaire modules have rotary knobs, which are twisted after placement and thereby for a mechanical Attach to the mounting rails.

at The busbar system just described, the lighting modules each can only be arranged at the points that pass through the tapped sockets are given, otherwise no electrical contact possible is. To such restrictions to avoid and thus greater flexibility for the arrangement of the individual luminaires were busbar systems developed, which one held by the support rails Stromleitprofil exhibit. This Stromleitprofil consists of elongated bodies of non-conductive material - usually Plastic - with longitudinal the support rails extending and a contacting side accessible Grooves for holding wires for the Power and / or transmission of control signals. In this case, since the non-insulated wires at least over the Length of one individual Stromleitprofil body can be open to the Kontaktierungsseite, can within this Area a light can be placed anywhere, so that one greater freedom the planning and realization of the trunking system exists.

The Length of one individual Stromleitprofil body is on the length matched to the DIN rail. This means that when assembling two Guideways to connect the two Stromleitprofile together are. This compound is problematic in that in this Area guaranteed have to be, that no unintentional contact a wire possible is. A corresponding standard requires that a 1 mm thick test wire in straight-stretch not on one of the wires can meet. The connection in a known busbar system Therefore, at these interfaces using a so-called. Row connector, the However, no possibility of contacting offers.

In the DE 38 79 381 T2 is a system of electrically interconnected slides described. The slide rails have conductive tongues as current-carrying elements. For electrical contacting of these Leitzungen between two adjacent slide rails connecting elements are provided which have embedded in grooves further Leitzungen.

In the DE 198 45 902 A1 a connector for busbars of safety grids is described. The busbars are located in slots of elongate conductor rail segments. For electrical connection of busbars of two adjacent segments is a connecting device with a plate and a spring, wherein the spring presses the corresponding ends of the busbars for mutual electrical contacting against the plate.

It It is therefore an object of the present invention to provide a technique in a busbar system for luminaires with a Stromleitprofil a particularly reliable Power connection between two rails allows.

The Task is by a busbar system, which features of claim 1, or by a connecting element according to the claim 9 solved. The connecting element used in the busbar system according to the invention is characterized by the fact that it the grooves of Stromleitprofile corresponding groove-shaped recesses has, in each of which a metal connector is used to the wires to be connected to each other can be connected from both sides. A contacting in the region of the connecting element is effected by that connection contacts a to be connected to the busbar system luminaire module in contact be brought to the tops of the metal connectors. That from one non-conductive material existing connecting element with the metal connectors includes the gap between the conductor profiles of two mounting rails and ensures that about the whole length of the busbar system across a luminaire module freely attached can be, since the metal connectors in the transition region, the contact surfaces for the terminal contacts of the luminaire module form. The shape of the recesses of the connecting element is like also chosen the shape of the grooves of Stromleitprofils such that the required contact protection given is. The metal connectors consist of an elongated Contacting plate, at each of whose ends a U-shaped spring element with an inwardly bent spring tongue for jamming the connect the metal connector wires is arranged. This ensures that the wires at a thermal expansion the plastic Stromleitprofils not pump-like move and possibly even emigrate.

Are located the Stromleitprofile within U-shaped mounting rails, takes place a mechanical connection of two adjacent mounting rails preferably with the help of a short U-shaped Connecting rail, which are each half in both mounting rails intervenes. The one or more fasteners are on the side legs arranged the connecting rail. In addition, the connecting rail next Have one or both ends spring tongues, which in the composite State in the mounting rails and the connecting rail provided openings engage behind. In this way it is ensured that two by a connecting rail interconnected mounting rails easy way releasably held together be there to solve only pressure on the spring tongues must be exercised.

A Development of the invention is concerned with the design of the arranged in a single support rail Stromleitprofils. The Stromleitprofil forming plastic body are usually produced by extrusion. This method is disadvantageous in that as it produces plastic parts only with a limited precision can be because the plastic after leaving the extrusion die very cools quickly and changed its shape. This has the consequence that one-piece Stromleitprofil body only to a certain complexity can be produced. In particular, the production of very long body is extremely expensive here.

By the development of the invention will a possibility stated, the Stromleitprofil much cheaper manufacture and adapt easily to the length of a mounting rail. This is made possible by that a Stromleitprofil of at least two joined wire support elements made of non-conductive material, which grooves for receiving the wires exhibit. The wire holder elements are in their end areas designed so that they when joining together with projections at their ends so overlapping mesh that they in the connection area between two wire support elements the grooves corresponding and open to the Kontaktierungsseite channels form. These channels are accessible only from the contacting side, otherwise, however, as well as the grooves of the wire retaining elements and the connecting element enclosed so that the safety standard also fulfilled in these areas is. This way is about the entire length a wire rail across a continuous but secure contacting possibility created.

By modular joining the Stromleitprofils of several individual wire holder elements is possible Tragschie NEN different lengths to provide for their placement with a Stromleitprofil only use wire retaining elements of a single length, since the Stromleitprofil can be adapted only by a change in the number of wire retaining elements to the length of the mounting rail. This results in a significantly lower production cost. Furthermore, no elongated and expensive to produce integral plastic parts must be created. The wire-holding elements can be produced, for example, by means of the much easier-to-control and less expensive injection molding process.

at made of plastic parts Stromleitprofilen is particular to note that this one not negligible Exposed to thermal radiation could be, especially near on or especially in the mounting rails arranged ballasts for the lights. This has the consequence that expand the plastic parts or contract when not irradiated can. there is particularly problematic that the Expansion coefficient of plastic is about 10 × larger than that of metal, so that the length of the individual wire support elements can vary significantly while, on the other hand the wires held by the current conductor remain nearly the same length. Out this reason can the wire holder elements at their ends locking elements which, when assembling two wire support elements mesh and a mutual displacement or removal longitudinal to limit to a predetermined movement play. Cool the Wire retaining elements and pull together, so remove they are up to a given maximum distance, always still the contact protection given is; when heated, they approach each other. On this way becomes temperature independent a consistent Stromleitprofil formed. Preferably, the wire support members a length of about 500 mm, with the allowed game, with the two together adjacent wire support elements can move against each other, approx. 8 mm, what kind of in the busbar system usually occurring temperature differences is sufficient.

A other training deals with one as possible easy to perform Contacting the wires within a U-shaped Mounting rail through a luminaire module. Therefor the luminaire module has a contacting element with several connecting contacts on, wherein the contacting element from the open side in to insert the mounting rail and subsequently partially - preferably by 45 ° - to twist is. By turning the terminal contacts in the grooves of the Stromleitprofils introduced and with the wires brought into contact. In this case, the contacting element preferably be designed such that at least one of the connection contacts in its height is adjustable. Because the wires arranged at different heights of the Stromleitprofils have different functions, can by moving the connection contacts an optional contact can be achieved. This offers the possibility the luminaires connected to the busbar system are different Assign functions, for example, some of the lights only to be used as emergency power lights. Furthermore, on the contacting element Locking elements may be provided, which during the rotation and contacting the wires additionally behind projecting parts of the support rail, thereby simultaneously a mechanical attachment to the mounting rail is made possible. In this way, with the help of a simple handle both an electrical contact as well as a mechanical attachment of the luminaire module become.

in the The following is the present invention with reference to the accompanying Drawing closer be explained. Show it:

1 the support rail of a busbar system with an inserted contacting element in section;

2 in the 1 illustrated support rail without the contacting element in section;

3 a wire support member in perspective view;

4 this in 3 illustrated wire-holding element in section;

5 the transition region between two composite wire support members from the contacting side;

6 the transition region between two wire support elements from the back;

7 the arrangement of a connecting element according to the invention and a connecting rail for connecting two mounting rails;

8th the structure of the connecting element;

9a a metal connector used in the connector;

9b a spring element of in 9a illustrated metal connector; and

10 this in 1 illustrated contactie perspective element in perspective view.

Basic element of in 1 Busbar system shown is a metal or sheet metal existing U-shaped mounting rail 1 , which with her middle thigh 2 by fastening means not shown on a support, for. B. a room ceiling or a room wall can be fastened. The cover of the open lower side of the mounting rail 1 done by a cover rail 5 , In the case shown, this cover rail 5 Part of one on the mounting rail 1 fixed luminaire module, being in 1 only the contacting element of the luminaire module in the form of a Drehabgriffs 50 is shown, but not its other components, such as the lamp or the associated control or operating device, which may be an electronic ballast (ECG). The interior of the mounting rail 1 in this case serves as a receiving space for the operating devices of the lamps. Those areas of the mounting rail 1 , on which no luminaire modules are arranged, can, for visual and safety reasons, also with a cover rail 5 be closed, with the fastening of the cover rail 5 by means of jamming or latching.

In the present example are on the insides of the two side walls 3a and 3b the mounting rail 1 Stromleitprofile arranged, which by a plurality of plastic and composed wire support elements 10 are formed, each two side wings 10a and 10b with several grooves 11 for receiving the wires 6 contain. Here are in the right wing 10a five wires 6 arranged while on the left six wires 6 run.

• Notstrom 1
• Notstrom 2
• Neutralleiter vom Standardnetz
• D1 = Steuerleitung für Lichtsteuerung
• D2 = Steuerleitung für Lichtsteuerung.

The one in the right wing 10a arranged wires 6 For example, in order from top to bottom, you can have the following function.

• Emergency power 1
• Emergency power 2
• Neutral from the standard network
• D1 = control cable for lighting control
• D2 = control cable for lighting control.

• Phase von Notstrom 1
• Phase von Notstrom 2
• Standardphase 3
• Standardphase 2
• Standardphase 1
• Erde.

The functions of in the left wing 10b arranged wires 6 are for example:

• Phase of emergency power 1
• Phase of emergency power 2
• Standard phase 3
• Standard phase 2
• Standard phase 1
• Earth.

Either the number of wires used as well their arrangement and function is shown only by way of example and can meet individual needs customized become.

By contacting the corresponding wires 6 the connected light can be assigned a desired function, for example, the light can be used as an emergency light. By using the two control lines for the lighting control, it is possible to form a bus system with these two lines, via which a plurality of lights can be controlled by means of digital control commands, as is known from more complex lighting systems.

The contacting of the wires 6 occurs over several on the Drehabgriff 50 arranged connection contacts 53 and 54 , which in the corresponding grooves 11 intervene and against the wires 6 come to the plant. In order to enable a variable and simple contact, for example, the terminal contact 53 by means of a carrier element 55 height adjustable on the handle 50 arranged. By simply moving the carrier element 55 Thus, the luminaire connected to the busbar system can be assigned the desired function. For the grounding is also a in a slot 63 the Drehabgriffs 50 guided wire element 62 provided, whose end 62b the provided for ground left lower wire 6 contacted. The exact structure and operation of the contacting element 50 will be explained in more detail later. The power supply for the busbar system can be done for example by a suitably adapted Drehabgriff, which is positioned in the longitudinal direction at any point.

A secure mounting of the two side wings 10a . 10b of the wire-holding member 10 is done by several guide arms 12 ₁ - 12 ₄ , which in corresponding guide grooves 4 ₁ - 4 ₄ the U-shaped mounting rail 1 intervention. The juxtaposed to a Stromleitprofil multiple wire-retaining elements 10 be in the mounting in the longitudinal direction in the mounting rail 2 inserted. At the back of the side wings 10a and 10b , ie on the opposite side of the contacting side of the grooves 11 There are several struts 16 , which ensures stable storage of the grooves 11 within the mounting rail 2 Ensure that they are not pushed back when contacting. In this way, a reliable contacting of the wires 6 supported.

The connection of the two side wings 10a and 10b occurs at regular intervals via connecting webs 13 , which on the middle leg 2 the mounting rail 1 are arranged. The connecting bridges 13 also have downwardly projecting holding leg 15 on, in common with one from the right wing 10a Horizontally protruding horizontal leg 14 an additional cavity 8th form. This cavity can be used for the storage of additional cables or lines. In addition, the horizontal leg has 14 nor the task of preventing the contacting element 50 reversed in the mounting rail 1 is introduced, as will also be explained later.

The shape of the grooves 11 the wire support elements 10 is chosen such that a contact protection is ensured, as in the following with reference to 2 should be explained. Here again is the mounting rail 1 represented with a Stromleitprofil arranged therein, but now without the Drehabgriff 50 , The initially mentioned safety standard provides that the arranged in the Stromleitprofil wires 6 should not be so exposed that a 1 mm thick test wire 7 in straight-line stretching on a live wire 6 can meet. In the illustration is for the bottom left wire 6 the entry angle for the test wire 7 the cheapest. As 2 it can be seen are the widths, depths and opening shapes of the grooves 11 dimensioned such that even at the smallest entrance angle of the test wire 7 none of the wires 6 can contact. In this way, inadvertent touching of the wires 6 avoided and meets the appropriate safety standard.

Before the connection according to the invention of two mounting rails and the associated Stromleitprofile will be explained, is first based on the 3 to 6 the specific embodiment of the Stromleitprofil forming wire support elements 10 be discussed, where 3 a wire support element 10 in a perspective view. Essential elements of the wire-retaining element 10 are the two side wings 10a and 10b which the grooves 11 to store the wires. They are over two connecting bridges 13 connected with each other. In this way, in addition with the help of the horizontal leg 14 and that of the connecting bridges 13 protruding retaining legs 15 the aforementioned cavity 8th be formed, which can be used to store other useful for the lighting system cables or cables. On the two side wings 10a . 10b Furthermore, there are also the guide arms 12 ₁ to 12 ₄ which are in the recesses 4 ₁ to 4 ₄ the mounting rail 1 intervene during insertion. The illustrations in 3 and 4 show the wire support element 10 immediately after production. To the wire support element 10 in the mounting rail 1 introduce the side wings 10a and 10b around the two folding points A and B folded down by 90 ° (see 4 ) and then into the mounting rail 1 pushed, resulting in the in the 1 and 2 shown arrangement results.

At their ends, the two side wings 10a and 10b projections 17 respectively. 22 on, with the help of two assembled wire support elements 10 overlapping overlap. At one of the two ends are also locking heads 18 provided, which is a removal of two assembled wire support elements 10 allow only up to a certain maximum distance in the longitudinal direction, so that one of a plurality of wire-holding elements 10 composite Stromleitprofil is flexible in length and thus changes in length of each made of plastic wire support elements 10 can be compensated due to temperature differences.

This should be based on the 5 and 6 be clarified, which show two composite wire support elements in an enlarged view, on the one hand from the contacting ( 5 ) and on the other hand from the opposite back ( 6 ) ago. The to the first wire support element 10 ₁ belonging parts are provided with the index 1, while that to the second wire support member 10 ₂ belonging elements have the index 2. After joining the two wire support elements 10 ₁ and 10 ₂ grip these two overlapping each other in such a way that each by a projection 17 ₁ of the first wire-holding member 10 ₁ as well as by a projection 22 ₂ of the second wire-holding member 10 ₂ a channel 23 is formed, which the grooves 11 the two wire holder elements 10 ₁ and 10 ₂ connects with each other. Like the grooves 11 are all channels formed in this way 23 in the connection area only from the contacting side, so accessible from above, but not from the side. This will also affect the range of channels 23 ensures the required contact protection.

The representation in 6 it can be seen that the two locking heads 18 ₂ a removal of the two wire support elements 10 ₁ and 10 ₂ only up to a maximum distance, which is determined by the fact that at the ends of the locking heads 18 laterally projecting locking projections 19 ₂ against stop walls 20 ₁ come to the plant. In this case, this predetermined maximum distance and the length of the interlocking projections 17 and 22 dimensioned such that even at the maximum distance of the two wire holder elements 10 ₁ and 10 ₂ each other still the previously explained channels 23 are formed and the contact protection is guaranteed. On the other side, the ends of the two wire support elements can 10 ₁ . 10 ₂ as far as each other approach until their two ends 21 ₁ and 21 ₂ come into contact with each other. This means that both wire support elements 10 ₁ . 10 ₂ With a certain play against each other are displaced, but at any time the contact protection is achieved. In this way, changes in the length of a single wire-retaining element 10 which expands, for example, due to increased temperature or contracts at lower temperatures can be compensated. This is particularly important because, in contrast to the existing plastic wire retaining elements 10 the wires stored in it 6 even can not perform such a large length changes, since the temperature coefficient of metal is only 1/10 of the expansion coefficient of plastic. At a length of about 500 mm for a single wire support element 10 Thus, a permissible game, with which the adjacent wire support elements 10 can move against each other, about 8 mm.

The illustrated wire holder elements 10 can be produced from plastic in a simple manner by injection molding, whereby they are very inexpensive to manufacture. Furthermore, it is sufficient wire support elements 10 in only a single length, since only the number of wire holder elements used to adapt the Stromleitprofils formed to the different lengths of the wire rails 10 must be adjusted, which in turn significantly reduces the manufacturing cost of the entire system. The interlocking projections and the locking elements can also be configured differently.

at Using the just presented wire support elements, it would be conceivable first of all Mounting rails of a busbar system and this only subsequently to equip with the required Stromleitprofilen, in which case a contact on the whole length the busbar system out possible is. Usually However, already the ready stocked rails are sold, in which already a complete Stromleitprofil with the wires arranged therein.

According to the present Invention, however, we also in the connecting areas between two Guideways a continuous Contact achieved by using the connecting element which corresponds to the grooves of Stromleitprofile and additionally of the two end faces of the connecting element accessible grooved Having recesses.

This is initially schematic in 7 shown. For mechanical connection of two adjacent mounting rails 1 becomes a likewise U-shaped short connecting rail 30 used, on which from both sides the mounting rails to be joined together 1 be deferred. A development not shown ensures that two by a connecting rail 30 interconnected mounting rails 1 be held together releasably. For this purpose, each support rail 1 have one or more openings in their upper area. The connecting rail 30 is then also provided with corresponding openings, protrude through the spring tongues. The spring tongues engage behind the openings of the mounting rail 1 as soon as the connecting rail 30 in the mounting rail 1 has reached the appropriate position. Around the mounting rail 1 and the connecting rail 30 To be able to solve again, only pressure on the spring tongues must be exercised. Such a releasable connection is preferably present on both sides, which means that the connecting rail 30 Having next to its two ends such openings with the corresponding spring tongues. As an alternative to a connection detachable on both sides, however, an embodiment is possible which has the connection just described on one side by means of spring tongues, while on the other side of the connecting rail 30 a usual screw is provided.

A particularly advantageous variant of this development is that at each one end of the connecting rail 30 arranged spring tongues belonging to a common rail locking element, which on the center leg of the connecting rail 30 is arranged, wherein the spring tongues protrude laterally through openings in the upper region of the side walls. In this case, the rail-locking element is formed so that the spring tongues under the action of a force from above on the element in the interior of the connecting rail 30 be confiscated. About one in the middle leg of the mounting rails 1 provided additional opening is to reach the rail locking element from above in a simple manner and to operate, for example by means of a screwdriver, so that the connection by a simple handle again detachable.

In the 7 for reasons of clarity not shown wire-retaining elements 10 are designed slightly differently in the connection area, in addition to the mounting rail 1 arranged connecting rail 30 Take into account. For example, have the wire support elements 10 no struts in this area 16 on. To connect the Stromleitprofile are on the side legs 30a and 30b the connecting rail 30 two connecting elements 31 provided, which are the aforementioned recesses 32 on point. Within these recesses 32 Metal connectors are arranged, which are connected from both sides with the wires to be joined together. Here is the opening shape of the recesses 32 chosen so that they meet the safety criterion of shock protection. For a connection with the connecting elements 31 are the fasteners 31 adjacent wire support elements also modified at their ends.

In the example shown are on both sides of the connecting rail 30 identical connecting elements 31 each with six recesses 32 arranged. This means that the topmost recess 32 of the arranged on the right side connecting element 32 remains free, as the corresponding side wing 10a only five grooves 11 for holding five wires 6 having. Of course, however, the exact structure of the wire holder elements corresponding connecting elements can be used.

The more accurate form of a fastener 31 is in 8th shown. It consists of a box-shaped and open at the bottom base part 33 , in the metal connector from the bottom 35 be used. The recesses 32 of the base part 33 are funnel-shaped openings from the two end faces 36 accessible, wherein upon insertion of a wire in a funnel-shaped opening 36 this in conjunction with the metal connector 35 is brought. After inserting the metal connectors 35 becomes the base part 33 through a cover plate 34 closed from the bottom. A contact by a luminaire module in the region of the connecting element 31 then takes place in that the terminal contacts of the contacting element against the top of a contacting plate 37 the metal connector 35 be pressed. At the end of the metal connector 35 This task is taken over again by the wires, so that no gap is created in which a contact is not possible.

The detailed design of a metal connector 35 is in the 9a and 9b shown. It consists of an elongated and on their long sides a little downwardly bent contacting plate 37 whose task is to take over and forward the electric current from the wires. At the ends of the contacting plate 37 is in each case a preferably made of a chromium-nickel alloy U-shaped spring element 38 which individually in 9b is shown arranged. The spring element 38 has an inwardly bent spring tongue 39 on, through which one into the metal connector 35 inserted wire jammed and sufficiently strong in terms of electrical contact resistance against the contacting plate 37 is pressed. In this way, it is further avoided that the wires can move or emigrate in a pump-like manner with a changing thermal expansion of the Stromleitprofils. The remote from the wires side of the tinned copper contacting plate 37 forms the contact surface for the contacts of the contacting element. To improve the contact between the contacting plate 37 and the wires has the contacting plate 37 on its underside a slightly curved or triangular depression 49 ,

The attachment of the spring elements 38 at the ends of the contacting plate 37 done by on the side walls of the spring elements 38 located recesses 40 in the projections 41 the contacting plate 37 intervention. A stable arrangement of metal connectors 35 in the connecting element 31 is further supported by the fact that on the cover plate 34 made of plastic pins 42 are arranged, which after placing the cover plate 34 from the bottom against the contacting plates 37 the metal connector 35 to press. Because the cones 42 also in lateral recesses 43 the bent down longitudinal sides of the contacting plates 37 engage, at the same time also a lateral displacement of the metal connector 35 prevented. In addition, set the pins 42 also a barrier, by which the migration of the wires is limited. The connecting element shown here closes the gap between the wire-holding elements of the Stromleitprofile, so that it is possible already equipped busbars 1 , merge with continuously contactable Stromleitprofilen, which can also be contacted in the connection areas.

In this case, the application of this connecting element is not limited to the illustrated example with the wire-retaining elements. For example, in the 7 to 9b also shown in the above-mentioned light band system, in which the Stromleitprofile are produced by extrusion and are integral, find their connection use.

alternative to the aforementioned Use of an adapted rotary handle for the mains supply can also a connectable to the front side of a mounting rail and Provided with the metal connectors cooperating power connector be through which the wires of the busbar system are connected to the power lines.

In conclusion, based on the 1 and 10 the more precise structure and the functioning of the as Drehabgriff 50 designed contactie be explained. 10 shows thereby the Drehabgriff 50 with a cover rail arranged on its underside 5 in perspective view. Essential part of the Drehabgriffs 50 are those on the outside of the cylindrical base body 61 arranged contacts 53 and 54 leading to an optional contacting of the different wires 6 are height adjustable. Another, but not freely selectable but given contact with grounding is through the wire element 62 given. This wire element 62 is in one on the base body 61 provided slot 63 led, with an end 62a of the wire element 62 by its shape in the cover rail 5 the luminaire module is clamped fixed. The other end 62b stands out at the height of the ground wire laterally. Furthermore, the Drehabgriff has 50 in its lower region, two laterally projecting locking elements 52 ,

Contacting the wires 6 the Stromleitprofils takes place in that the Drehabgriff connected to a lighting module 50 in the lower opening of the mounting rail 1 is introduced. As 1 it can be seen, is the cylindrical base body 61 different high, with the only on the right side of the mounting rail 1 arranged horizontal legs 14 prevents the contacting element 50 reversed in the mounting rail 1 is introduced.

After the introduction of the Drehabgriffes 50 this is rotated by approximately 45 °, as a result, the laterally disposed locking elements 52 in inwardly projecting parts of the mounting rail 1 or the Stromleitprofils and thus ensure a mechanical attachment of the luminaire module. At the same time the connection contacts 53 and 54 into the grooves 11 the wire support elements 10 screwed in, so that the desired electrical contact is made. As previously mentioned, some or all of the contacts may be height adjustable, which in the example shown is achieved by the carrier element 55 of the contact 53 within guide rails 56 and 57 is vertically displaceable. In this case, the support element 55 as well as the cylindrical base body 61 with the guide rails 56 and 57 designed so that the support element 55 in the wires 6 corresponding positions can easily engage, ensuring accurate positioning of the contact 53 is relieved.

The slot 63 forms for the wire element 62 an eccentric stop and causes the end 62b of the wire element 62 while twisting the knob 50 on the provided for ground left lower wire 6 is pressed. In this way, a ground between the metallic cover rail 5 , which is part of the luminaire module, and the metallic mounting rail 1 produced. For this it is necessary that the wire element 62 has a certain strength, which is why it preferably consists of a galvanized steel wire or a CrNi wire.

The cover rail located on the underside of the handle 5 closes the mounting rail 1 down, which also prevents the ingress of dust at the same time. In the region of the contacting element 50 has the cover rail 5 an elongated slot in which the rotary knob 58 can be inserted in the locked position upwards, so that he down with the cover rail 5 is flush. In this way, a complete closure of the mounting rail 1 achieved.

The cover rail 5 is also used in places where no luminaire modules are arranged. In the case of fixing a luminaire module is the cover rail 5 However, at the same time, the holder for all elements of the luminaire module, wherein z. B. the ballast or the top of the cover rail 5 are arranged and thus protrude into the interior of the U-shaped mounting rail. The presented Drehabgriff 50 enables contacting of the wires in a simple manner as well as mechanical fastening of the luminaire module in the busbar system. In particular, in the presented solution, in which over the entire length of the busbar system away a free contact is made possible, is an application of the illustrated Drehabgriffes 50 advantageous because it is particularly flexible and can be removed again.

The The present invention thus provides a very powerful busbar system which, for the first time, the possibility a completely free contact and arrangement of the luminaire modules offers. As a result, too the individual luminaire modules are no longer adapted to specific lengths have to, to a suitable arrangement within the busbar system to enable. The application is not based on the example shown U-shaped Power track limited. For example, the wire support elements also in busbars with other profiles, such as A-profiles or Y-profiles are used. This applies in the same way for the presented Connecting element. Furthermore, can the production costs are significantly reduced, since the wire support elements can be made in a much simpler and faster way than this is the case with the known Stromleitprofilen. Furthermore The present invention offers a possibility related to with temperature differences occurring problems, which is a change in length and shift the plastic parts cause to get around.

Claims (9)

Busbar system for luminaires with several modularly connectable U-shaped mounting rails ( 1 ) and one of the mounting rails ( 1 ) held Stromleitprofil, which in the longitudinal direction of the mounting rails ( 1 ) extending and accessible from a contacting side grooves ( 11 ) for receiving wires for the power supply and / or transmission of control signals, wherein for connecting the Stromleitprofile of two adjacent mounting rails ( 1 ) a connecting element ( 31 ) is provided, which the grooves ( 11 ) of the Stromleitprofile corresponding groove-shaped recesses ( 32 ), in each of which a metal connector ( 35 ) to which the in the grooves ( 11 ) of the Stromleitprofile to be arranged and interconnected wires ( 6 ) are connectable from both sides, wherein the metal connectors ( 35 ) from an elongated contacting plate ( 37 ), at whose ends in each case a U-shaped spring element ( 38 ) with an inwardly bent spring tongue ( 39 ) for jamming the to the metal connector ( 35 ) wires to be connected ( 6 ) is arranged. Conductor rail system according to claim 1, characterized in that on the insides of the two side walls ( 3a . 3b ) of the mounting rail ( 1 ) a Stromleitprofil is arranged. Conductor rail system according to claim 2, characterized in that this for connecting two mounting rails ( 1 ) a U-shaped connecting rail ( 30 ), which in both mounting rails ( 1 ) engages inside and on the side legs ( 30a . 30b ) each a connecting element ( 31 ) is arranged. Conductor rail system according to claim 3, characterized in that the connecting rail ( 30 ) Has spring tongues, which in the assembled state in the mounting rails ( 1 ) as well as in the connecting rail ( 30 ) behind openings provided. Conductor rail system according to claim 4, characterized in that at one end of a connecting rail ( 30 ) are part of a rail locking element, which is formed such that the spring tongues under the action of a force from above on the rail locking element in the interior of the connecting rail ( 30 ). Conductor rail system according to one of claims 2 to 5, characterized in that the interior of the U-shaped mounting rail ( 1 ) serves as a receiving space for operating devices of the lamps and for corresponding contacting elements. Conductor rail system according to one of the preceding claims, characterized in that the from a mounting rail ( 1 ) held Stromleitprofil of at least two joined wire support elements ( 10 . 10 ₁ . 10 ₂ ), which the grooves ( 11 ) for receiving the wires ( 6 ), wherein the wire support elements ( 10 . 10 ₁ . 10 ₂ ) when joined together with projections located at their ends ( 17 . 22 ) overlap each other in such a way that in the connection region they engage the grooves ( 11 ) and to the contacting side open channels ( 23 ) form. Conductor rail system according to claim 7, characterized in that the wire support elements ( 10 . 10 ₁ . 10 ₂ ) Locking elements ( 18 . 19 ), which a relative longitudinal movement of two joined wire support elements ( 10 . 10 ₁ . 10 ₂ ) against each other to a predetermined movement play limit. Connecting element for connecting Stromleitprofilen a busbar system for lighting, wherein the Stromleitprofile extending in the longitudinal direction and accessible from a contacting side grooves ( 11 ) for receiving wires ( 6 ) for the power supply and / or transmission of control signals, wherein the connecting element ( 31 ) the grooves ( 11 ) of the Stromleitprofile corresponding groove-shaped recesses ( 32 ), in each of which a metal connector ( 35 ) is inserted such that in the grooves ( 11 ) of the Stromleitprofile to be arranged and interconnected wires ( 6 ) are connectable from both sides, wherein the metal connectors ( 35 ) from an elongated contacting plate ( 37 ), at whose ends in each case a U-shaped spring element ( 38 ) with an inwardly bent spring tongue ( 39 ) for jamming the to the metal connector ( 35 ) wires to be connected ( 6 ) is arranged.