EP3772607B1 - Light with damped tap - Google Patents

Description

The invention relates to a system for realizing a lamp according to the preamble of claim 1.

Generic systems have, as two basic components, a mounting rail that is elongated in a longitudinal direction and a mounting body that is elongated in the longitudinal direction. Supply lines are usually arranged on the mounting rail, and an illuminant and/or other functional element is usually arranged on the mounting body, such as radio modules, control gear, etc. The mounting rail is typically used to fix the light to a component, for example a ceiling. When installing a lamp, the mounting rail is usually first attached to the component and then the mounting body, which is equipped with the components of the lamp mentioned that require a corresponding electrical supply, is fixed to the mounting rail, so that the mounting rail and mounting body form an interior space. in which essential elements of the lamp are arranged, for example printed circuit boards with LEDs, operating devices, radio modules, supply lines, etc. Typically, the mounting rail and mounting body are each designed to be elongated in a longitudinal direction. The support rail usually has a cross section perpendicular to the longitudinal direction along a vertical direction is open at a vertical end and is delimited along a transversal direction by two side walls which are connected to one another by a bottom section of the support rail running along the transversal direction. The mounting rail is usually attached to a component via its bottom section. The mounting body is usually arranged on the open vertical end of the mounting rail, so that the mounting body together with the mounting rail forms an interior space which is closed off by the mounting rail and the mounting body running around it perpendicular to the longitudinal direction, with the enclosure of the interior space being able to be interrupted in sections, of course, for example to allow an air supply. A generic system usually comprises a current-conducting rail which is elongated in the longitudinal direction and has channels in which conductor wires are arranged, and an electrical contact device with a mounting section and a contact section which is spaced apart from the mounting section along a vertical direction. In an operating position of the components, also called parts, of the system, in which the components of the system have an arrangement with respect to one another that characterizes the operating position and which is required to implement a lamp, the two basic components are fastened to one another, with the current-conducting rail being attached to a first of the two Basic components is fixed and the contact device is fixed with its mounting portion on a second of the two basic components and is electrically conductively connected with its contact portion with at least some of the lead wires. In most cases, the current-conducting rail is fastened to the mounting rail in the operating position, in particular to the bottom section of the mounting rail. However, it is also conceivable that the conductor rail in the operating position on the mounting body, in particular on the bottom section of the Mounting body is attached. The basic principle of the conductor rail is to allow contact over a longitudinal section, so that contact can be made between supply lines arranged on the mounting rail and the components arranged on the mounting body within a specific longitudinal section and not just at a single longitudinal position. For example, the mounting section of the contact device can be fixed in the operating position on the mounting rail and the contact device can be electrically conductively connected to electrical supply lines arranged on the mounting rail, while the current conducting rail is arranged on the mounting body and the contact section of the contact device engages in the channels of the current conducting rail and contacts the conducting wires arranged in the channels, which in turn are connected to components arranged on the mounting body in order to supply the components. Alternatively, for example in the operating position, the current-conducting rail can be arranged on the mounting rail, with the conductors arranged in the channels of the current-conducting rail forming at least one section of supply lines, which are arranged in the mounting rail, with the mounting section being fixed on the mounting body and the contact device being inserted into the Channels of the conductor rail arranged on the support rail engages for contacting the conductor wires arranged therein, the contact device being electrically conductively connected at the same time to components which are arranged on the mounting body in order to supply these components. In principle, the contact device thus enables the supply of components arranged on the mounting body by enabling an electrical connection between the supply lines arranged on the mounting rail and the components. The supply lines can be in addition to power supply lines also include control or data lines. It should be noted that in order to reach the operating position, the assembly body and the support rail are moved toward one another along a vertical direction that is perpendicular to the longitudinal direction until they are arranged on one another and fixed to one another. The person skilled in the art is familiar with common retaining springs, via which a mounting body can be fixed relative to a mounting rail. Typically, such support springs have a bottom portion for mounting on the mounting body and, at both transverse ends of the bottom portion, a holding portion extending vertically away from the bottom portion, on which a holding projection extending outward in the transverse direction is provided. This holding projection typically engages behind a fastening projection which is arranged on one of the side walls of the mounting rail associated with the holding projection. For this purpose, the mounting body itself is often designed in such a way that it has a cross section perpendicular to the longitudinal direction in the manner of a U-shape and thus comprises a bottom section and two side wall sections, with the bottom section of the retaining spring often being fastened to the mounting body by the bottom section being clamped on projections provided on the side wall portions of the mounting body, whereby the bottom portion of the retaining spring is pressed against the bottom portion of the mounting body. However, other fastening options are also known, for example by means of screwing, latching or by means of bayonet locks, via which a mounting body can be fixed to the mounting rail. In general, suitable fastening means, with which the mounting body is fastened to the mounting rail in the operating position, preferably serve to prevent the mounting body and mounting rail from moving away from each other vertically, starting from the operating position.

In principle, a large number of common contact devices are known in the prior art, via which contacting between the mounting body and mounting rail or between components arranged on the mounting body and supply lines arranged on the mounting rail is possible by means of a current conducting rail. The contact devices are always designed in such a way that they have contact sections with which they can be inserted into the channels of the current-conducting rail. For example, it is known to fasten a fixed pick-off to a current-conducting rail, which contacts the conductor wires arranged in the channels of the current-conducting rail, this tap forming the contact section of the contact device and being connected to a mounting section via a cable, the current-conducting rail and mounting section being fastened to different basic components are. However, such contact devices are expensive to manufacture and complex to assemble. Contact devices are also known, which are to be attached to one of the two basic components with their mounting section, the conductor rail being attached to the other of the two basic components and the contact device having electrical contact sections such that when the mounting body and mounting rail are brought together vertically, the contact sections in the channels of the current conducting rail are introduced and contact the conductor wires arranged therein. Although this solution allows a cost-effective production of the contact device and easy assembly of the components of the system to reach the operating position. However, this solution also has various disadvantages. For example, fasteners such as retaining springs or snap-in connections do not offer such fixability of the mounting body to the mounting rail, that with any load, the vertical position of the mounting body relative to the mounting rail is always precisely and unchangeably fixed. For example, vibrations or vertical movements of ceilings can take place in buildings, for example due to movement influences from the floor above the room on the ceiling or movement influences on the ground in the vicinity of the building. In the event that a relative movement then occurs between the mounting rail and mounting body, there is a risk that arcing will occur within the interior space enclosed by the mounting rail and mounting body if the contact device with its contact section is deflected from the conductors of the conductor rail, which could cause fires . In the prior art, this problem is prevented by providing a sufficient contact length between the contact section and the line wires and by providing special mechanisms to ensure that the distance between the support rail and the mounting body is as small as possible. However, both require expensive production and influence the free availability of the interior for lighting components. In addition, it is known that the conductor rails with their line wires and support rails and mounting bodies are made of different materials that have different thermal expansion behavior. There is therefore a risk that there will be a relative movement between the contact device attached to the second basic component relative to the current-conducting rail, while the contact device is in electrical engagement with the conductor wires of the current-conducting rail. This can lead to tension and reduced durability, in particular also to the generation of a torque between the conductor rail and the contact device. Such torque brings danger with the result that a relative force is generated between the mounting body and the mounting rail, which acts towards detaching these two basic components from one another, starting from the operating position, so that only a small additional relative force between the two basic components can lead to the basic components detaching from one another. There is also the risk that the contact section will lose its electrical connection to the conductor wires of the current-conducting rail. In EP 2 827 053 A1 discloses a system for realizing a lamp in which, in an operating state, the contact device is held on the mounting body by a form fit and the mounting body is held on the mounting rail by a retaining clip, as a result of which the contact section of the contact device is kept in contact with the conductor wires arranged in the current-carrying rail is.

The present invention is based on the object of providing a system for realizing a lamp which at least partially eliminates at least one of the problems described above or one of the disadvantages of generic systems described above.

As a solution to the above problem underlying the present invention, the invention proposes a system having the features of claim 1.

The system according to the invention is suitable for realizing a lamp. As two basic components, the system comprises a mounting rail that is elongated in a longitudinal direction and on which supply lines are arranged, and a mounting body that is elongated in the longitudinal direction and on which an illuminant and/or a functional element is arranged. The light source and/or other functional element is an element that needs to be supplied electrically is. The system has a longitudinally elongated current-conducting rail with channels in which conductor wires are arranged, and an electrical contact device with a mounting section and a contact section that is offset along a vertical direction with respect to the mounting section. In the operating position, the two basic components are attached to each other and assembly section and contact portion fixed to each other. Mounting section and contact section can be designed as two separate components that are combined with one another to form a component that is fixed in a cohesive manner; they can also be designed together as a component that is produced in one piece. In the operating position, the current conducting rail is fastened to a first of the basic components, and the contact device is fastened in the operating position with its mounting section to a second of the two basic components and is electrically conductively connected with its contact section to at least some of the conducting wires. In the operating position, the current-conducting rail is particularly preferably fixed to the mounting rail and the mounting section of the contact device is fixed to the mounting body. The mounting body and mounting rail are particularly preferably fastened to one another in the operating position by means of fastening means which prevent the mounting body from moving away from the mounting rail in the vertical direction. Mounting body and support rail are particularly preferably designed to correspond to one another such that they are guided against one another to reach the operating position along the vertical direction until they reach a vertical end position, wherein they are fixed to one another in this vertical end position by fastening means. The second basic component has a bottom portion and two side wall portions extending away from the bottom portion along the vertical direction. In the operating position, the mounting portion is held on the second base component pressed against the bottom portion. The contact section overlaps in the operating position with a vertical engagement section vertically with the current conducting rail and is held fixed by a contact force acting within the engagement section between current conducting rail and contact section on the current conducting rail and with at least some of the conductors of the conductor rail are connected in an electrically conductive manner. The engagement section thus defines a section along the vertical direction, within which the current-carrying rail and the contact section overlap in the operating position. In this overlapping area, ie within the vertical extent of the engagement section, the contact force acts between the current-conducting rail and the contact section, preferably directly between the current-conducting rail and the contact section. The contact force counteracts a displacement of the contact section relative to the current-conducting rail, starting from the operating position. For example, the contact force can bring about a frictional connection between the current conducting rail and the contact section in the engagement section. It must be taken into account that the conductors are surrounded by the conductor rail. However, a form fit can also be provided within the engagement section between the current conducting rail and the contact section, in which case the form fit can also bring about a contact force between the current conducting rail and the contact section. In this case, in order to carry out a relative movement of the current conducting rail and the contact section to one another, starting from the operating position, such a relative force must be generated between the current conducting rail and the contact section that the contact force is overcome, in which case it may also be necessary for this relative force to be applied between the contact section and the current conducting rail to Contact force significantly exceeds when a relative movement between the contact section and current conducting rail is to be effected if there is a form fit within the engagement section between current conducting rail and contact section. It must be taken into account that in the present case the contact force is preferably generated exclusively by the arrangement formed by the current conducting rail and the contact section. To generate a relative movement of the contact section to the current conducting rail starting from the operating position, whereby the focus is on the relative arrangement of the contact section and current conducting rail to one another when they are in the operating position, a force defined with reference to this arrangement consisting of current conducting rail and contact section must therefore be overcome in order for the current conducting rail and Contact section can be moved to each other, regardless of the other influences of other components of the system in the operating position. In any case, in order to carry out a relative movement between the contact section and the current-conducting rail, it is necessary to overcome the contact force which is correspondingly present between the current-conducting rail and the contact section in the operating position. According to the invention, a spring device acting between the mounting section and the second basic component is provided, which in the operating position presses the mounting section with a spring force vertically against the bottom section of the second basic component in order to fix the mounting section on the second basic component. In the operating position, the assembly section is thus at least, in particular exclusively, fixed relative to the second basic component in that the spring device exerts a spring force vertically on the assembly section in the direction of the bottom section of the second basic component. This spring force is less than a vertical minimum force that is required to overcome the contact force to carry out a vertical relative movement between the contact section and current-conducting rail, with reference usually being made to a relative movement of the contact section along the vertical direction, starting from the operating position away from the current-conducting rail. The focus here is on the contact force that results from the arrangement of the contact section and conductor rail. The minimum vertical force can be defined, for example, via the contact section and current conducting rail are brought into such a position in relation to one another that they are in the operating position of the system in relation to one another. Starting from this position, which this arrangement also occupies in the operating position, the arrangement of current-conducting rail and contact section created in this way is then subjected to a force that acts relatively between the contact section and current-conducting rail. In any case, this force must exceed the minimum force so that the contact section can be moved relative to the current-conducting rail. In one embodiment, the minimum force can be determined, for example, in such a way that a relative force is generated between the mounting rail to which the current-conducting rail is attached, or directly between the current-conducting rail and the contact section, and its amount is increased until the contact section moves relative to moves the conductor rail, with this resulting total amount being set as the minimum force. Of course, the amount of the minimum force can be different for different directions of the minimum force. The minimum vertical force is the magnitude of the minimum force along the vertical direction. The spring device can be formed, for example, by the second basic component or by the assembly section. The spring device is particularly preferably formed only by the mounting section. In one embodiment, the spring device can be formed partially by the second basic component and partially by the mounting section. The system according to the invention can have further features which are explained above in connection with generic systems.

The system according to the invention has significant advantages compared to systems of the generic type. By the mounting section being fixed by a spring device relative to the second basic component, by the spring device presses the mounting section vertically against the bottom section of the second basic component with its spring force, it is ensured that the mounting section can be removed from the bottom section of the second basic component along the vertical direction, starting from the operating position, i.e. starting from its position in the operating position along the vertical direction relative to of the second basic component is deflected when only a force exceeding the spring force is applied against the spring force on the mounting portion relative to the second basic component. Since the spring force is smaller than the vertical minimum force that is required to overcome the contact force and to carry out a vertical relative movement between the contact section and the conductor rail, it is ensured that when the two basic components move relative to one another, for example if it is caused by the movement of a ceiling to which the mounting rail is attached, there is a relative movement between the mounting body and the mounting rail, the contact section can remain unchanged in the same position relative to the current-conducting rail that it has in relation to the current-conducting rail in the operating position of the system. This is because, in the event of a vertical deflection of the mounting body relative to the mounting rail, the mounting section can initially become detached from the bottom section of the second basic component. Since the spring force is smaller than the minimum force required to overcome the contact force and to carry out a vertical relative movement between the contact section and the current-conducting rail, the contact section can remain in place relative to the current-conducting rail without changing its position during the deflection of the spring device, starting from its position in the operating position.

In one embodiment, the mounting portion is outgoing detachable from the operative position from the bottom portion of the second base component along the vertical direction by applying a releasing force exceeding the spring force, while the spring means presses the mounting portion toward the bottom portion of the second base component unchanged with the spring force. Starting from the operating position, the assembly section can preferably be detached from the bottom section of the second basic component along the vertical direction by applying a releasing force that exceeds the spring force and acts between the two basic components, in particular acting exclusively between the two basic components, while the spring device leaves the assembly section unchanged with the spring force pressed toward the bottom portion of the second basic component. In the system according to the invention, in the operating position, a deflection limitation is preferably provided between the mounting section and the second basic component, which limits a vertical deflection with which the mounting section can be removed vertically from the bottom section of the first basic component by the releasing force, starting from the operating position, to a maximum deflection. The maximum deflection is preferably less than 5 mm, in particular less than 3 mm, in particular less than 2 mm. The deflection limitation between the mounting section and the second basic component is particularly preferably provided in such a way that when the mounting section and the second basic component are arranged relative to one another, which corresponds to the arrangement of the mounting section and the second basic component in the operating position, the vertical deflection with which the mounting section is subjected to a release force that acts along the vertical direction between the mounting section and the second base component, starting from the named position of the mounting section relative to the second base component, can be removed vertically from the bottom section of the second base component, on which maximum deflection is limited. The deflection limitation is particularly preferably provided independently of the first basic component. The deflection limitation is particularly preferably provided exclusively between the second basic component and the assembly section. The deflection limitation is particularly preferably implemented by a section of the assembly section and a corresponding section of the second basic component. The provision of the deflection limitation can prevent the mounting section from detaching from the second basic component in a particularly effective manner, since this ensures that the spring device can only be deflected far enough for the mounting section to be deflected relative to the second basic component, starting from its position relative to the second basic component in the operating position, is deflected with the maximum deflection.

Particularly preferably, at least one of the side wall sections has a projection pointing towards the opposite side wall section, the spring device having a spring arm which presses vertically upwards against the projection and which presses the mounting section vertically downwards against the bottom section of the second basic component. Particularly preferably, each of the two side wall sections has a projection pointing towards the opposite side wall section, wherein the spring device has a spring arm at its transverse ends, which points vertically upwards against the respective projection of the respective side wall section assigned to it. A transverse end is an end of the spring means along the transverse direction, the transverse direction being perpendicular to the vertical direction and perpendicular to the longitudinal direction. The spring device particularly preferably has four spring arms, with two of the spring arms forming a pair of spring arms opposed to each other in the transverse direction, the two pairs of spring arms being spaced from each other along the longitudinal direction. Particularly preferably, the spring arms of a pair of spring arms each form a transverse end of the spring device. Particularly preferably, the two pairs of spring arms each form a longitudinal end of the spring device. Particularly preferably, each of the spring arms, as explained for one spring arm, presses vertically upwards against the projection of the side wall section on which the respective spring arm is arranged. By providing four such spring arms, a particularly reliable fixation of the assembly section relative to the second basic component or to the bottom section of the second basic component can be ensured.

The assembly section particularly preferably comprises a body made of sheet metal, which forms a support section with which the assembly section bears against the bottom section of the first basic component in the operating position, preferably directly against the bottom section of the second basic component. The body further forms at least a part of the spring device in that the body forms the spring arm which, in the operative position, bears against the projection with a vertical pressing force which presses the mounting section against the bottom section of the second basic component. More preferably, the body has at least four spring arms, each of which in the operative position bears against the projection of its associated side wall portion with a vertical pressing force that presses the mounting portion against the bottom portion of the first base component. In this embodiment, the assembly section is pressed against the bottom section of the first basic component from the sum of the pressing forces generated by the at least four spring arms. Especially preferred the spring arms are arranged as explained above in order to ensure a particularly reliable fixation of the mounting section on the bottom section of the second basic component. By providing a body made of sheet metal, which is encompassed by the assembly section and is designed as explained, an assembly section and a part of the spring device with the explained properties can be realized in a particularly simple manner. Particularly preferably, the end of the spring arm pointing away vertically from the bottom section of the second basic component in the operating position is designed as a scratching lug, which preferably produces an electrical contact between the contact device and the second basic component in the operating position. If several spring arms are provided, at least one of the spring arms preferably has an end designed as a scratching nose. The end of the spring arm, which is designed as a scratching lug and points away from the base section of the second basic component, is particularly preferably in contact with the projection of the side wall section in the operating position. As explained above, it is particularly preferably provided that the spring arm(s) always rests on the projection of the side wall section even when the mounting section is deflected from its position in the operating position relative to the base section up to the maximum deflection. The base section, side wall sections and projection, in particular the projections of the side wall sections, are generally particularly preferred, with each of the side wall sections having a projection, the second basic component being produced from sheet metal, in particular by forming the sheet metal. The projection of the side wall section is particularly preferably formed by a fold, the fold and thus the projection forming one end of the side wall section. This can apply accordingly if each of the side wall sections each has a projection pointing to the opposite side wall section. By producing the bottom section, side wall sections and projection or projections of the second basic component from a one-piece sheet metal, the basic component with its required properties can be produced in a particularly simple and cost-effective manner.

The mounting section particularly preferably has a limiting projection which is vertically spaced from the projection of the side wall section in the operating position and which abuts the projection at the maximum vertical deflection of the mounting section relative to the second basic component. In the operating position, the limiting projection is preferably arranged vertically below the projection of the side wall section, while the spring device presses the mounting section vertically downwards against the bottom section of the second basic component. At maximum deflection, the limiting projection can, for example, bear indirectly against the projection, for example by a sheet metal section of the mounting section resting against the projection at maximum deflection, against which the limiting projection comes to rest at maximum deflection. Such a sheet metal section preferably has an extent of less than 5 mm between its point at which it bears against the projection at maximum deflection and its point at which it bears against the limiting projection at maximum deflection. The limiting projection is particularly preferably in direct contact with the projection at the maximum deflection. As a result, a particularly hard stop of the limiting projection and thus a particularly precise setting of the maximum deflection can be made possible. The limiting projection is particularly preferably formed by a plate-like section of the mounting section, whose two-dimensional extent forms an angle of less than 30°, in particular less than 15°, relative to the vertical direction. The limiting projection is thus formed by a section which is designed in the manner of a plate. Such a plate has a planar extension whose area is significantly larger than its edge area. The two-dimensional extent thus forms the plate surface of the plate. By the flat extension of the plate-like section of the mounting section, which forms the limiting projection, forming a small angle to the vertical direction, it can be ensured in a particularly advantageous manner that the limiting projection forms a hard stop under vertical load and can thus precisely define the maximum deflection, since the limiting projection or the plate-like section then acts as little elastically as possible on such a vertical force. More preferably, in the operative position, the limiting projection overlaps the projection of the side wall portion in the transverse direction. Since the limiting projection overlaps transversely with the projection of the side wall section, a reliable stop of the limiting projection and thus a precise definition of the maximum deflection can be supported. Particularly preferably, the side wall section can be elastically deflected relative to the bottom section of the first basic component along the transverse direction and/or the limiting projection forms a transverse end of the mounting section that can be elastically deflected along the transverse direction relative to an opposite transverse end of the mounting section. In this particularly preferred embodiment, it can be ensured that on the one hand the mounting section can be fixed to the base section in a simple manner by the limiting projection along the vertical direction past the projection of the side wall section in the direction of the base section can be guided towards the mounting body, whereby the limiting projection can nevertheless overlap with the projection of the side wall section in the operating position. In general, it is preferably provided that the mounting section has a plurality of delimiting projections, each delimiting projection being assigned to precisely one projection of a side wall section, ie precisely one side wall section and thus to its projection. Four such limiting projections are particularly preferably provided, analogously to the four spring arms advantageously provided as explained above, whereby two pairs of limiting projections can be provided corresponding to the two pairs of spring arms explained above, which are distributed on the mounting section analogously to the two discussed pairs of spring arms can be provided.

In one embodiment, the spring device overlaps in the operating position in the transverse direction with the projection of the side wall section, the side wall section being elastically deflectable relative to the bottom section of the second basic component along the transverse direction and/or the spring device forming a transverse end of the mounting section with which it is connected in the Operating position rests against the projection with a vertical pressing force, and this transverse end formed by the spring device can be elastically deflected relative to an opposite transverse end of the mounting section along the transverse direction. Because the side wall section can be deflected relative to the base section, as explained, and/or the transverse end of the spring device can be elastically deflected, as explained, relative to the opposite transverse end of the mounting section, it can be ensured in a particularly advantageous manner that, on the one hand, the spring device moves reliably in the operating position can be supported on the projection or projections of the side wall section or sections in order to press the mounting section against the bottom section of the second basic component, it being possible at the same time to ensure that the mounting section can be easily fixed to the second basic component, for example by the Mounting section can be moved along the vertical direction downwards towards the bottom section of the second basic component until the spring arm is arranged under the projection of the side wall section and engages it, thereby pressing the mounting section along the vertical direction downwards against the bottom section of the second basic component

In one embodiment, the mounting section has a guide section on each transverse side, each of the guide sections running in the operating position with a vertical section along one of the two side wall sections of the second basic component assigned to it and in this vertical section by less than 1 mm, in particular less than 0.5 mm, in particular by less than 0.3 mm, in the transverse direction from this associated side wall section. The two guide sections ensure that the assembly section is guided as precisely as possible along the transverse direction relative to the second basic component. This can be particularly advantageous when the mounting section is deflected in the vertical direction relative to the second basic component, starting from its position in the operating position relative to the second basic component, due to the application of a force as explained above. In this case, the guide sections can ensure that there are no undesired movements of the mounting section relative to the second base component comes, which can lead to undesired movements of the contact portion relative to the current conducting rail.

In one embodiment of the invention explained, the system comprises, as two basic components, a mounting rail that is elongated in a longitudinal direction and on which supply lines are arranged, and a mounting body that is elongated in the longitudinal direction and on which an illuminant and/or other functional element is arranged. The system has a longitudinally elongated current-conducting rail with channels in which conductor wires are arranged, and an electrical contact device with a mounting section and a contact section that is offset along a vertical direction with respect to the mounting section. In an operating position, the two basic components are fastened to one another and the current-carrying rail is fastened to a first of the basic components, and the contact device is fastened with its mounting section to a second of the two basic components. The second basic component has a bottom portion and two side wall portions extending away from the bottom portion along the vertical direction. In the operating position, the mounting section is held pressed against the base section on the second basic component, with the contact section in the operating position overlapping vertically with a vertical engagement section with the current-conducting rail and being held fixed on the current-conducting rail by a contact force acting within the engagement section between the current-conducting rail and the contact section and is electrically conductively connected to at least some of the lead wires. In order to carry out a relative movement between the contact section and the conductor rail, the contact force must be overcome. The embodiment described can of course have other features, described above in connection with other embodiments. According to this embodiment, a guide running in the longitudinal direction is provided between the mounting section and the contact section, the contact section being guided in a displaceable manner relative to the mounting section along the longitudinal direction by means of the guide and the guide forming a stop at each of its longitudinal ends. The contact section can be displaced relative to the mounting section only within a longitudinal range defined by the stops. The embodiment mentioned has further special advantages. In particular, the provision of such a guide ensures that the mounting section and the contact section can move relative to one another within a predetermined longitudinal range along the longitudinal direction. This can effectively counteract the generation of stresses between the components of the system in the event of thermal fluctuations. Because, for example, if the thermal expansion of the conductor rail, support rail and mounting body differs, it can then be ensured that such a different thermal expansion can be counteracted by the contact section moving relative to the mounting section without the influence of force at the transitions or within the engagement section between Conductor rail and contact section occur. In general, the first and second solutions according to the invention and their various embodiments described here can be combined with one another. With regard to the geometric dimensions of the mounting section and contact section, the stops are particularly preferably designed in such a way that the stops cover a displacement distance of the contact section within which it, starting from the operating position, relative to the mounting section is displaceable, of at least 1 mm, in particular at least 2 mm and/or limit the displacement distance to less than 10 mm, in particular less than 5 mm. The inventors have recognized that specifying a certain minimum displacement distance is particularly advantageous in order to prevent the occurrence of a corresponding stress between the components of the system over a sufficiently large temperature range. On the other hand, the inventors have recognized that problems can arise when allowing too great a displacement distance, for example if free mobility of the contact section relative to the mounting section is not desired due to electrical contacts or due to the installation space available on the mounting body and/or can lead to damage.

Particularly preferably, the guide ensures a holding force acting between the contact section and the mounting section to prevent displacement of the contact section relative to the mounting section in the longitudinal direction, with a displacement force acting in the longitudinal direction relative to the mounting section being required between the mounting section and the contact section, which has a minimum force component along the longitudinal direction in order to overcome the holding force, with this minimum force component in particular being smaller than a minimum force acting along the longitudinal direction which is required to overcome the contact force and to carry out a relative movement along the longitudinal direction between the contact section and the conductor rail. As explained above, the contact section and the current-conducting rail are in the operating position in a specific relative position to one another, in which the contact force acts between the current-conducting rail and the contact section. Around To change the arrangement of the current-conducting rail contact section, starting from the position it occupies in the operating position, in such a way that the contact section is moved relative to the current-conducting rail along the longitudinal direction, a force is required which in any case overcomes the contact force and to carry out a relative movement along the longitudinal direction between the contact section and the conductor rail is suitable. The fact that the minimum force component that is required to overcome the holding force between the mounting section and the contact section is smaller than the force along the longitudinal direction that is required to overcome the contact force to carry out a relative movement of the contact section and current-conducting rail to one another can be guaranteed in the particularly advantageous embodiment that when a relative force occurs between the current conducting rail and the contact section, the contact section can remain in its position relative to the current conducting rail while it moves relative to the mounting section, starting from the operating position. The particularly advantageous embodiment can thus prevent the occurrence of stresses in the system when it is in its operating position and external forces act on the system, while at the same time it can be ensured that the contact section is reliably fixed relative to the mounting section. Particularly preferably, the contact section is clamped with a holding force in each position of the contact section within the longitudinal area relative to the mounting section due to the guidance. In the operating position, the holding force particularly preferably acts exclusively perpendicularly to the longitudinal direction. The holding force can thus bring about a frictional connection between the contact section and the holding section, so that the contact section relative to the mounting section only generates significant friction between the contact section and the mounting section can be moved.

In one embodiment, the guide is formed at least partially by forming a sheet metal section, the formed sheet metal section being encompassed by the mounting section and encompassing a counter-section encompassed by the contact section and resting against it in a non-positive manner. Since the sheet metal section is encompassed by the mounting section, the sheet metal section can be integrated particularly well into the mounting section with its other functionalities, wherein the sheet metal section can be easily formed for clamping guidance by forming. By the contact section comprising a counter-section and this counter-section being encompassed by the sheet metal section and the sheet metal section thereby resting against it in a non-positive manner, a particularly good fixing of the mounting section and contact section relative to one another can be ensured. In general, the guide between the contact section and the mounting section is particularly preferably designed in such a way that the guide has a first part, which is formed by the mounting section, and a second part, which is formed by the contact section, with the first part being friction-locked in this way with a vertical force on the second abuts that mounting portion and contact portion are pressed against each other along the vertical direction and are thereby held together. The guide is particularly preferably formed exclusively by the mounting section and contact section.

The mounting section is particularly preferably formed by a first component and the contact section is formed by a second component that is separate from the first component. The first component is particularly preferably made of sheet metal. The second component particularly preferably comprises an injection-molded body. The sheet metal particularly preferably forms the sheet metal section specified above, which is deformed. The injection-molded body particularly preferably forms the above-mentioned second part of the guide. The two components are particularly preferably held in relation to one another via the guide, in particular exclusively via the guide. Particularly preferably, the two components can be fixed to one another in a captive manner, the two components being in the operating position in their captively fixed arrangement relative to one another.

The invention also relates to a contact device comprising a mounting section and a contact section, the contact device being designed to be used in a system according to the invention. The invention also relates to a luminaire made with the system according to the invention, in which luminaire all components of the system are in the operating position.

The invention is explained below with reference to five figures using an exemplary embodiment.

Figur 1:

in einer schematischen Prinzipdarstellung einen Querschnitt von Bestandteilen einer Ausführungsform eines erfindungsgemäßen Systems in der Betriebsposition;

Figur 2:

in einer schematischen Prinzipdarstellung eine perspektivische Darstellung auf Bestandteile des Systems in der Betriebsposition;

Figur 3:

in einer schematischen Prinzipdarstellung eine perspektivische Ansicht des Montageabschnitts der Ausführungsform des erfindungsgemäßen Systems;

Figur 4:

in einer schematischen Prinzipdarstellung eine perspektivische Ansicht des Kontaktabschnitts der erfindungsgemäßen Ausführungsform;

Figur 5:

in einer schematischen Prinzipdarstellung einen vergrößerten Ausschnitt einer perspektivischen Darstellung auf Bestandteile der erfindungsgemäßen Ausführungsform in der Betriebsposition;

Figur 6:

in einer schematischen Prinzipdarstellung einen Ausschnitt einer Querschnittsdarstellung von Bestandteilen der erfindungsgemäßen Ausführungsform in der Betriebsposition.

Show it:

Figure 1:

in a schematic representation of principle, a cross section of components of an embodiment of a system according to the invention in the operating position;

Figure 2:

in a schematic representation of the principle, a perspective view of components of the system in the operating position;

Figure 3:

in a schematic basic representation a perspective view of the assembly section of the embodiment of the invention systems;

Figure 4:

in a schematic basic representation a perspective view of the contact section of the embodiment according to the invention;

Figure 5:

in a schematic representation of principle, an enlarged section of a perspective representation of components of the embodiment according to the invention in the operating position;

Figure 6:

in a schematic representation of principle a section of a cross-sectional representation of components of the embodiment according to the invention in the operating position.

In the Figures 1 to 6 an embodiment of a system according to the invention is shown in various schematic representations. In figure 1 a cross-section perpendicular to the longitudinal direction V is shown schematically while the system is in the operating position. The exemplary embodiment described comprises a support rail 1 and a mounting body 2. Both the support rail 1 and the mounting body 2 each have a cross section in the manner of a U-shape, which is formed by the bottom section and side wall sections. in the in figure 1 The operating position shown is the mounting body 2 on the mounting rail 1 through in figure 1 Fastening means, not shown, are held in such a way that the mounting body 2 is pressed with its side wall sections 21 along the vertical direction Z against projections formed by the side wall sections of the mounting rail 1 . In the operating position is also on the support rail 1, namely on its bottom section, a conductor rail 3 fixed. The current conducting rail 3 has webs 31 which form channels between them, with the channels in figure 1 conductive wires, not shown, are arranged, which are held on the webs 31 of the current-conducting rail 3 via recesses 310 which are provided in the webs 31 . A contact device 4 is attached to the bottom section 22 of the mounting body 2 by the mounting section 6 of the contact device 4 being pressed along the vertical direction Z against the bottom section 22 of the mounting body 2 . In addition to the mounting section 6 , the contact device 4 also has the contact section 5 , the contact section 5 being offset along the vertical direction Z with respect to the mounting section 6 .

The relative arrangement of contact section 5, mounting section 6 and mounting body 2 is shown in particular in the perspective view figure 2 evident. The contact section 5 has a section 56 with which it rests on a section 66 of the mounting body 6 and is held pressed against this section 66 . From the synopsis of Figure 1 and 2 It can be seen that the mounting body 6 has a spring device 61 which forms a scratching lug 630 at one transverse end, which in the operating position presses from below against the projection 210 of a side wall section 21 of the mounting body 2 assigned to the respective scratching lug 630 and in doing so presses a support section 65 of the mounting section 6 against the bottom portion 22 of the mounting body 2 presses. At this point it should be noted that in the schematic representations of the principles, the spring device 61 is shown in its non-deflected rest position, which is purely due to the nature of the representation. Of course, the claw 630 does not extend "into" the sidewall portion as shown in the figures 21 but rests from below on the projection 210 of the side wall portion 21 and thereby presses the support portion 65 of the mounting portion 6 against the bottom portion 22 of the mounting body 2. From the synopsis of Figures 1 and 2 It can also be seen that the contact section 5 has webs 51 which are arranged in the channels of the current-conducting rail 3 in the operating position and press against conductor wires of the current-conducting rail 3 which are arranged in the channels and are held on the webs 31 . The electrical contact elements, which are provided on the webs 51 of the contact section 5 and which press against the conductor wires of the current-conducting rail 3 in the operating position, are not shown in the figures.

The schematic structure of the contact section 5 and mounting section 6 of the contact device 4 is in particular from the schematic schematic representations according to the Figures 3 and 4 evident. In the present exemplary embodiment, the mounting section 6 is designed as a component that is made from sheet metal, with the sheet metal being deformed for this purpose. The mounting section 6 has a sheet metal section 63 formed by forming, and the contact device 5 has a mating section formed by projections 52 . In the exemplary embodiment described, the contact section 5 has an injection-molded body, with both the webs 51 and the projections 52, which form the counter-section, being part of the injection-molded body. The contact section 5 and the mounting section 6 can be fixed to one another so that they cannot be lost by attaching the contact section 5 relative to the mounting section 6 in such a way that the formed sheet metal section 63 of the mounting body 6 encompasses the projections 52 and the contact section 5 with its section 56 against the corresponding section 66 of the assembly body 6 presses what according to the invention is generally beneficial. In this case, 6 stops 64 are provided on the mounting section. If the contact section 5 is positioned relative to the mounting section 6 as explained and is captively attached to it, the projections 52 are located between the stops 64. The stops 64 define a longitudinal area within which the contact section 5 relative to the mounting section 6 along the longitudinal direction X is displaceable. In the operating position, the mating section of the mounting section 5 formed by the projections 52 is at a distance from all stops 64 of the mounting body 6 . This particular is from figure 5 can be seen, in which the relative arrangement of contact section 5, mounting section 6 and mounting body 2 to one another in the operating position is shown schematically by an enlarged excerpt. It can be seen from FIG. 5 that in the operating position the counter-section formed by the projections 52 of the contact section 5 is spaced apart in the longitudinal direction X from the projection 64 of the mounting body 6, which results in a displaceability of the contact section 5 relative to the mounting section 6 along the longitudinal direction X. if only a sufficiently high force is applied along the longitudinal direction between these two basic components, via which the holding force acting between the contact section 5 and the mounting section 6 can be overcome.

From the synopsis of Figures 3, 4 , 5 and 6 It can also be seen that the mounting portion 6 has a limiting projection 62 which, in the operating position shown in FIGS Figures 5 and 6 is shown in schematic excerpts, along the vertical direction Z offset downwards to the projection 210 of the side wall section 21 of the mounting body 2 and is thus spaced along the vertical direction Z relative to this projection 210. Further the mounting portion 6 has a guide portion 67 spaced from the projection 210 of the side wall portion 21 along the transverse direction Y by less than 1 mm in the operative position. The mounting section 6 is pressed downwards against the base section 22 along the vertical direction Z by the spring device 61, in that the scratching lug 630 presses from below along the vertical direction Z against the projection 210 of the side wall section 21, which can be seen in the figures, in particular in FIG figure 6 is not displayed correctly. The spring device 61 is designed in such a way that when a force that exceeds the spring force is applied and counteracts the spring force, the mounting section 6 with its support section 65 can be moved away from the base section 22 along the vertical direction Z, while the scratching lug 630 of the spring device 63 remains unchanged from below against the projections 210 of the side wall portions 21 is pressed. Since the spring force is smaller than the minimum vertical force that is required to overcome the contact force to carry out a vertical relative movement between the contact section 5 and the current-carrying rail 3, the system according to the invention can make it possible for a relative movement of the mounting rail 1 to the mounting body 2 along the vertical direction Z to one another , starting from the in figure 1 shown operating position, the mounting section 6 moves away from the base section 22 along the vertical direction Z with its support section 65, while the mounting section 6 continues to be acted upon by the spring force along the vertical direction Z towards the base section 22, the contact section 5 with its webs 51 remains unchanged in engagement with the conductor rail 3.

Reference List

1

mounting rail

2

assembly body

3

power rail

4

contact facility

5

contact section

6

assembly section

21

sidewall section

22

bottom section

31

Bridge of the conductor rail

51

web of the contact section

52

Projection of the contact device

56

section

61

spring device

62

limiting tab

63

sheet metal section

64

attack

65

Support section of the mounting section

66

Section of the assembly body

67

guide section

210

protrusion of the sidewall section

310

recess

630

scratchy nose

X

longitudinal direction

Y

transverse direction

Z

vertical direction

Claims (17)

1. System for implementing a light, the system comprising, as two basic components, a mounting rail (1) which is elongated in a longitudinal direction (X) and on which supply lines are arranged, and a mounting body (2) which is elongated in the longitudinal direction (X) and on which an illuminant and/or other functional element is arranged, the system having a current conducting rail (3) which is elongated in the longitudinal direction (X) and has channels in which lead wires are arranged and an electrical contact device (4) having a mounting portion (6) and a contact portion (5) offset along a vertical direction (Z) relative to the mounting portion (6), wherein, in an operating position, the two basic components are fixed to each other, the current conducting rail (3) is fixed to a first one of the basic components and the contact device (4) is fixed with its mounting portion (6) to a second one of the two basic components, wherein the second basic component has a bottom portion (22) and two side wall portions (21) extending away from the bottom portion (22) along the vertical direction (Z) and, in the operating position, the mounting portion (6) is held pressed against the bottom portion (22) on the second basic component, wherein, in the operating position, the contact portion (5) vertically overlaps with the current conducting rail (3) with a vertical engagement portion and is held fixed to the current conducting rail (3) by a contact force acting within the engagement portion between the current conducting rail (3) and the contact portion (5) and is electrically conductively connected to at least some of the lead wires, wherein the contact force must be overcome to perform a relative movement between the contact portion (5) and the current conducting rail (3),
   characterized in that
   a spring means (61) acting between the mounting portion (6) and the second basic component is provided, the spring means in the operating position pressing the mounting portion (6) vertically against the bottom portion (22) of the second basic component with a spring force for fixing the mounting portion (6) to the second basic component, the spring force being smaller than a vertical minimum force required for overcoming the contact force for performing a vertical relative movement between contact portion (5) and current conducting rail (3).
2. System according to claim 1,
   characterized in that,
   starting from the operating position, the mounting portion (6) can be detached from the bottom portion (22) of the second basic component along the vertical direction (Z) by applying a detachment force exceeding the spring force, while the spring means (61) presses the mounting portion (6) unchanged toward the bottom portion (22) of the basic component with the spring force, wherein a deflection limitation is provided between the mounting portion (6) and the second basic component which limits a vertical deflection with which the mounting portion (6) can be detached vertically from the bottom portion (22) of the second basic component by said detachment force, starting from the operating position, to a maximum deflection which is in particular less than 5 mm, in particular less than 3 mm.
3. System according to any of the preceding claims,
   characterized in that
   at least one of the side wall portions (21) comprises a projection (210) pointing to the opposite side wall portion (21), wherein the spring means (61) comprises a spring arm which presses vertically upwards against the projection (210) and which presses the mounting portion (6) vertically downwards against the bottom portion (22) of the second basic component.
4. System according to claim 3,
   characterized in that
   the mounting portion (6) comprises a body made of a sheet metal, which body forms a support portion (65) with which the mounting portion (6) in the operating position abuts against the bottom portion (22) of the second basic component, the body further forming at least part of the spring means (61) in that the body forms the spring arm, in particular at least four spring arms, which, in the operating position, bears or bear against the projection with a vertical pressing force which presses the mounting portion (6) against the bottom portion (22) of the first basic component, wherein, in particular, the spring arm, at its end which, in the operating position, faces vertically away from the bottom portion (22) of the second basic component, is formed as a scraper lug (630) which makes electrical contact between the contact device (4) and the second basic component.
5. System according to claim 4,
   characterized in that
   bottom portion (22), side wall portions (21) and projection (210) of the second basic component are made of a one-piece sheet by forming the sheet.
6. System according to any one of claims 2 to 5,
   characterized in that
   the mounting portion (6) comprises a limiting projection (62) which, in the operating position, is vertically spaced from the projection (210) of the side wall portion (21) and which abuts the projection (210) at the maximum deflection.
7. System according to claim 6,
   characterized in that
   the limiting projection (62) is formed by a plate-like portion of the mounting portion (6), the planar extension of which forms an angle of less than 30°, in particular less than 15°, relative to the vertical direction (Z).
8. System according to any of claims 6 or 7,
   characterized in that
   the limiting projection (62) overlaps with the projection (210) of the side wall portion (21) in the transverse direction (Y) in the operating position, wherein the side wall portion (21) is elastically deflectable relative to the bottom portion (22) of the second basic component along the transverse direction (Y) and/or the limiting projection (62) forms a transverse end of the mounting portion (6) which is elastically deflectable relative to an opposite transverse end of the mounting portion (6) along the transverse direction (Y).
9. System according to any one of the preceding claims,
   characterized in that
   in the operating position, the spring means (61) overlaps with the projection (210) of the side wall portion (21) in the transverse direction (Y), the side wall portion (21) being elastically deflectable relative to the bottom portion (22) of the second basic component along the transverse direction (Y) and/or the spring means (61) forms a transverse end of the mounting portion (6) with which it bears against the projection (210) with a vertical pressing force in the operating position, and this transverse end formed by the spring means (61) can be elastically deflected along the transverse direction (Y) relative to an opposite transverse end of the mounting portion (6).
10. System according to any one of the preceding claims,
    characterized in that
    the mounting portion (6) has a guide portion (67) on each transverse side, each of which, in the operating position, running with a vertical portion thereof along one of the two side wall portions (21) of the second basic component assigned to it and being spaced in this vertical portion from this side wall portion (21) assigned to it by less than 1 mm, in particular less than 0.5 mm in the transverse direction (Y) .
11. System according to any of the preceding claims,
    characterized in that
    a guide extending in the longitudinal direction (X) is provided between the mounting portion (6) and the contact portion (5), the contact portion (5) being guided by means of the guide so as to be displaceable relative to the mounting portion (6) along the longitudinal direction (X) and the guide forming a respective stop (64) at each of its longitudinal ends, wherein the contact portion (5) is displaceable relative to the mounting portion (6) only within a longitudinal range defined by the stops (64), wherein in particular the stops (64) permit a displacement distance of the contact portion (5) relative to the mounting portion (6) of at least 1 mm, in particular at least 2 mm, and/or limit the displacement distance in particular to less than 10 mm, in particular less than 5 mm.
12. System according to claim 11,
    characterized in that
    the guide exerts a holding force acting between contact portion (5) and mounting portion (6) for preventing displacement of the contact portion (5) relative to the mounting portion (6) along the longitudinal direction (X) starting from the operating position, wherein a displacement force relatively acting in the longitudinal direction (X) between mounting portion (6) and contact portion (5) is required for displacing the contact portion (5) relative to the mounting portion (6), which displacement force has a minimum force component along the longitudinal direction (X) for overcoming the holding force, wherein in particular this minimum force component is smaller than a minimum force acting along the longitudinal direction (X) which is required for overcoming the contact force for performing a relative movement along the longitudinal direction (X) between the contact portion (5) and the current conducting rail (3).
13. System according to any one of claims 11 or 12,
    characterized in that
    in the guide, the contact portion (5) is clamped with a clamping force relative to the mounting portion (6) in any position of the contact portion (5) within the longitudinal region.
14. System according to any one of claims 11 to 13,
    characterized in that
    the guide comprises a formed sheet metal portion (63) surrounded by the mounting portion (6) and a mating portion surrounded by the contact portion (5), the sheet metal portion (63) surrounding and positively abutting the mating portion.
15. System according to any one of the preceding claims,
    characterized in that
    the mounting portion (6) is formed by a first component and the contact portion (5) is formed by a second component separate from the first, wherein in particular the first component is made of a sheet metal and the second component comprises an injection molded body.
16. Contact device (4) comprising mounting portion (6) and contact portion (5), wherein the contact device (4) is adapted for use in a system according to any one of the preceding claims.
17. Light manufactured using the system according to any of claims 1 to 15, wherein in the light all components of the system are in the operating position.

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