EP3816503A1 - Light component for covering a light source - Google Patents

Light component for covering a light source Download PDF

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Publication number
EP3816503A1
EP3816503A1 EP20195300.7A EP20195300A EP3816503A1 EP 3816503 A1 EP3816503 A1 EP 3816503A1 EP 20195300 A EP20195300 A EP 20195300A EP 3816503 A1 EP3816503 A1 EP 3816503A1
Authority
EP
European Patent Office
Prior art keywords
latching
hook
locking
counter bearing
component
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20195300.7A
Other languages
German (de)
French (fr)
Other versions
EP3816503B1 (en
Inventor
Philipp Henrici
Olaf Baumeister
Bastian Hunecke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BJB GmbH and Co KG
Original Assignee
BJB GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BJB GmbH and Co KG filed Critical BJB GmbH and Co KG
Publication of EP3816503A1 publication Critical patent/EP3816503A1/en
Application granted granted Critical
Publication of EP3816503B1 publication Critical patent/EP3816503B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/166—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to torsion, e.g. spiral springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/005—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with keying means, i.e. for enabling the assembling of component parts in distinctive positions, e.g. for preventing wrong mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F21V19/0035—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources the fastening means being capable of simultaneously attaching of an other part, e.g. a housing portion or an optical component
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F21V19/004—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by deformation of parts or snap action mountings, e.g. using clips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a luminaire component, in particular a cover for a light source, such as an optic, for fixing on a counter bearing, in particular a retaining plate, retaining profile or heat sink, with a fastening element by means of which the lamp component can be fastened to the counter bearing.
  • a luminaire component in particular a cover for a light source, such as an optic, for fixing on a counter bearing, in particular a retaining plate, retaining profile or heat sink, with a fastening element by means of which the lamp component can be fastened to the counter bearing.
  • Luminaire components of the generic type in particular as a cover for a light source in the form of a translucent plastic cover which optically influences the distribution of the light and which are commonly referred to as optics, are for example made of WO2014 / 184422A1 known.
  • plastics such as polycarbonate or polymethyl methacrylate are used for such covers. Both plastics can be produced in a transparent, translucent manner and are ideally suited for incorporating optical elements into the respective cover using the injection-molding process. By means of these optical elements it is possible to direct the light emanating from a light source in its distribution in the desired manner. This is particularly necessary with LED light sources.
  • the object of the invention is therefore to create alternative fastening means for generic lighting components, in particular covers for light sources, i.e. in particular optically effective covers, which enable simplified production and in particular meet the material properties of the two plastics described above.
  • the fastening element is a latching element
  • the latching element forms a latching arm, which the latching arm arises from the luminaire component in the insertion direction and a free end in the insertion direction and has an end connected to the luminaire component
  • the latching element has a first, wedge-shaped latching hook, the wedge tip of the first latching hook pointing in the direction of the free end of the latching element, the back surface facing away from the wedge tip and close to the luminaire component serving as a holding surface and forming the undercut of the first latching hook, at least one side surface of the first locking hook at an angle to the insertion direction is issued
  • the first latching hook is pivotably resiliently mounted in the latching element, the pivot axis of the first latching hook is remote from the lighting component and is located near the free end of the remaining element. The pivot axis is also located in the area of the wedge tip of the first locking hook.
  • the invention uses latching elements in the form of latching hooks for the first time to fix said lamp components, in particular optical covers for light sources, this being in particular circuit boards with one or more attached LEDs as a light-emitting source. This makes the assembly much easier, since the placement on the counter bearing and the attachment to the counter bearing are one and the same work step.
  • latching elements in particular the latching hooks arranged on the latching arm, that they engage a suitable holding contour, for example an opening, for attachment to the counter bearing and, for this purpose, perform an evasive movement around the holding contour.
  • the latching element must be able to be resiliently deformed in order to hook onto the retaining contour. Therefore, the locking arm is usually deformed around an axis and practically performs a pivoting movement around this axis.
  • the locking element according to the invention is provided with a locking hook, the pivot axis of which is arranged remote from the lamp component.
  • the latching hook executes a pivoting movement on a circular line from the luminaire component, the center of which roughly coincides with the tip of the wedge.
  • This special position of the pivot axis of the first latching hook allows the latching element dimensions to be adapted to the tough elastic polycarbonate on the one hand and to the rather brittle polymethyl methacrylate on the other hand.
  • a luminaire component is particularly preferred which is characterized in that the latching arm has an in particular ring-like recess closed with a web remote from the luminaire component, the first council hook is arranged within the recess and connected to the web, in particular when the pivot axis of the first latching hook is in the area of the Connection of the first latching hook lies on the web, the web in particular forming the pivot axis of the first latching hook.
  • the storage of the latching hook in the recess described above and its connection to the latching arm allows the tension loads on the plastic during the overtravel movement to be optimally distributed in order to engage in the retaining contour of the counter-bearing.
  • the locking arm is designed to be resiliently pivotable about a pivot axis close to the lamp component, the pivoting movement required for the overtravel can be distributed over two different material areas of the locking element, so that the tension loads are divided between two pivoting or bending areas.
  • This is a further design feature in order to avoid permanent deformations in the case of viscoplastic polycarbonate by exceeding the resilience elasticity and, when using polymethyl methacrylate, to prevent fractures due to excessive stress.
  • the locking element has a second locking hook, the wedge tip of the second locking hook also pointing in the direction of the free end of the locking element, that of the wedge tip
  • the back surface facing away and close to the luminaire component also serves as a holding surface and forms the undercut of the second snap-in hook
  • at least one side surface of the second snap-in hook is also at an angle to the insertion direction, but in the opposite direction in relation to the opening angle of the first snap-in hook, so that the second snap-in hook is opposite to the first snap-in hook is issued
  • the second latching hook is also pivotably resiliently mounted on the latching element, but the pivot axis of the second latching hook is located close to the lamp component and away from the free end of the latching element. The pivot axis is therefore remote from the wedge tip or close to the holding surface, in particular between the holding surface of the second latching hook and the lamp component.
  • one and the same cover can initially be adapted to retaining contours that differ from one another in two counter bearings that are at least different from the retaining contours.
  • One and the same cover can thus be used both for the counter-bearing of the first type and for the counter-bearing of the second type.
  • the second latching hook is arranged on the arm of the latching element outside the recess.
  • the web is part of the free end of the locking arm, in particular when the web forms the wedge tip of the second and in particular also of the first locking hook.
  • the luminaire component forms centering contours close to the locking element, which interact with a centering contour of the counter-bearing in order to arrange the luminaire component in the correct position on the counter-bearing.
  • the support structures make it possible to also fix the light source to be covered, in particular the board provided with LEDs, on the counter bearing when the cover is placed and fixed, so that a separate fastening of the board is not necessary.
  • the board which is fixed on the counter-bearing before the cover is placed on the counter-bearing, experiences additional contact pressure on the counter-bearing through the support structures of the luminaire component. In this way, especially with larger board dimensions, an even pressure on the counter bearing is guaranteed over the entire board surface. Since the counter bearing is often a heat sink, this optimizes the dissipation of heat from the board to the heat sink.
  • one of the two locking hooks has a function of anchoring the lamp component in the counter bearing by engaging behind the counter bearing, whereas the other locking hook secures the anchoring function by the locking element being able to support against a loosening movement on the counter bearing.
  • the two latching hooks are not only used to fix one and the same optics to either one of two differently designed counter bearings.
  • the locking hook that is not used for fastening is used for Stabilization or support of the latching connection is used and thus improves the fixing of the luminaire component in the case of the latching connection which tends to release loads.
  • the holding surface of the first latching hook has a stepped, curved or inclined surface and to be able to compensate for tolerances of the material thickness of the counter bearing.
  • pivot axis of the locking arm and the pivot axis of the second locking hook coincide in their position.
  • a counter-bearing also contributes to the solution of the invention, which is initially characterized in that the counter-bearing has a passage contour for the locking element, the width of which is smaller than the width of the locking element defined by the undercuts of the first and second locking hooks.
  • the counter-bearing forms a holding contour that cooperates with one of the locking hooks to fix the lamp component on the counter-bearing and that the counter-bearing forms a support contour that cooperates with the other locking hook in order to release a loosening movement of the lamp component on the counter-bearing To block locking element.
  • the lamp component 11 shown is an optically effective cover made of a transparent plastic such as polycarbonate or polymethyl methacrylate. It has a light exit wall 12 into which the viewer can see the underside pointing in the direction of the light source (not shown) Figure 1 is facing.
  • the light exit wall 12 initially carries optically effective elements 13 on its underside, which are made from the luminaire component material itself are trained. These are, for example, divergent or convergent lenses with a receiving cup 14, which the LED 15 in the Figures 2 and 4th LED board shown overlapped. Retaining pins 17 are used to hold the LED circuit board 16 between them and a counter bearing and to ensure that the LED circuit board 16 rests evenly on the counter bearing. In this way, a good heat transfer between the plate 16 and the counter bearing is guaranteed.
  • Centering pins 18 position the circuit board 16 relative to the optical elements 13 in order to ensure correct light guidance through the optical elements 13.
  • Side walls 19 of the optically effective cover 11 have latching elements, provided overall with the reference number 20, with a latching arm 21 which carries a first latching hook 22 and a second latching hook 23.
  • the side walls 19 form centering contours 24. These engage in the retaining contour of a counter-bearing in a manner not described in detail in order to position the cover 11 in the correct position relative to the counter-bearing.
  • the representation of the Figure 7 an end view of the locking element 20, shows its features in detail.
  • the latching element 20 has a latching arm 21 which arises from the lamp component in an insertion direction X and has a free end, not designated in more detail, and an end connected to the lamp component 11.
  • the latching arm 21 carries a first latching hook 22 which is approximately wedge-shaped.
  • the first wedge tip 26 of the first locking hook points in the direction of the free end of the locking arm, whereas the first back surface 27 of the first locking hook 22 facing away from the wedge tip points in the direction of the cover 11.
  • the first back surface 27 serves, as it were, as a holding surface for fastening the lamp component 11 to a counter bearing.
  • the latching hook also has a first side surface 28 which extends from the first wedge tip 26 to the first back surface 27 and forms an angle with the direction of insertion. This first side face is raised to the side with respect to the latching arm, so that the first latching hook 22 is raised in a first direction with respect to the latching arm 21.
  • the first back surface 27 or the first holding surface 27 has a compensating structure in order to be able to compensate for different material thicknesses of a counter bearing.
  • the back surface is of a stepped design and, starting from the latching arm, drops off in the deployment direction of the first latching hook 22.
  • this compensation structure can consist of a correspondingly sloping inclined surface or a curved surface.
  • the latching arm 21 then carries a second latching hook 23 with a second wedge tip 30 which points in the direction of the free end of the latching arm 21 or here in the exemplary embodiment forms the free end of the latching arm 21. Facing away from the second wedge tip 30, the second latching hook 23 forms a second back surface 31 which also faces the cover 11.
  • a second side surface 32 of the wedge-shaped second locking hook 23 extends from the second wedge tip 30 to the second back surface 31 and is inclined with regard to the insertion direction X or the longitudinal extension of the locking arm 21, so it also forms an angle with the insertion direction.
  • the angle enclosed between the second side surface 32 and the direction of insertion X is, however, in terms of amount that between the first side surface and the direction of insertion X. included angle opposite, the second locking hook 23 is thus issued relative to the locking arm 21 in the opposite direction. In other words, the exhibition of the first locking hook 22 and the second locking hook 23 is opposite.
  • FIG 6 shows a partial side view of the cover 11 showing the latching element 20.
  • the latching arm 21 has a recess 33 which is approximately ring-shaped, the ring contour here being approximately rectangular.
  • the recess 33 is closed on its side remote from the luminaire component by an annular web 34.
  • the recess 33 is closed on the side facing away from the annular web 34 by the side wall 19 of the cover 11.
  • the first locking hook 22 is arranged on the ring web 34, so that the ring web 34 forms, as it were, the wedge tip 26 of the first locking hook 22.
  • the ring web 34 is at the same time part of the free locking arm end or part of the second wedge tip 30.
  • the annular web 34 has a material weakening zone in the area of the connection of the first latching hook 22.
  • the first latching hook 22 is arranged on the latching arm 21 or in particular on its annular web 34 so as to be pivotable in a resilient manner. It can be pivoted back in the direction of the latching arm 21 by a corresponding force, for example in the event of an overstroke over a retaining contour of a counter bearing.
  • the pivot axis lies in the connection area of the ring web 34 and the first locking hook 22, that is to say in the area of the wedge tip 26 of the first locking hook 22 or, in a preferred embodiment, is formed by the ring web 34.
  • the ring web 34 has the in Figure 6 Material weakening zone shown and described above.
  • the second latching hook 23 which, depending on the perspective, either also has a recess 33 or is available in duplicate on both sides of the first latching hook 22, is also designed to be resiliently pivotable in order to allow an overtravel movement when engaging the retaining contour of a counter bearing. Its pivot axis is to be found approximately in the connection area of the latching arm 21 on the lamp component 11 or its side wall 19 or corresponds to a pivot axis of the latching arm 21, which carries out the overtravel movement of the second latching hook 23 when it engages the retaining contour of a counter bearing.
  • Figure 4 shows the arrangement of the cover 11 according to the invention on a counter bearing 40 of the first embodiment, hereinafter also referred to as the first counter bearing 40.
  • This is a strongly profiled component on which a circuit board 16 with an LED 15 is arranged.
  • the circuit board 16 with LED 15 form the light source, which is covered by the cover 11.
  • the receiving cups 14 of the optical elements 13 receive the LEDs 15.
  • the first counter-bearing 40 forms grip strips 41 which protrude approximately parallel to the board or parallel to the light exit wall, which in the Groove space 42 of a profile groove 43 protrude into it.
  • the groove wall opposite the grip strip 41 is designed as a support wall 44.
  • the profile groove 43 with the grip strip 41, groove space 42 and support wall 44 together forms the retaining contour 45 for securing the cover 11 on the first counter bearing 40.
  • FIG. 5 The enlarged section of the section B shown here shows that a passage 46 remains between the grip strip 41 and the support wall 44, the width of which corresponds to the second latching hook 23.
  • the latching hook 23 In order to reach behind the grip strip 41, however, the latching hook 23 must pivot outwards in the direction of the support wall 44 in order to carry out an overtravel movement over the grip strip 41. In this case, it pivots about a pivot axis, not designated in any more detail, close to the side wall 19.
  • the first latching hook 22 is supported on the support wall 44. In order to execute the overtravel movement, it must pivot in the opposite direction to the first locking hook in the direction of the locking arm 21.
  • the first latching hook 22 which has been pivoted out again, is supported on the support wall 44.
  • the second latching hook 23 is held in its fixing or fastening latching position, whereas the first latching hook 22 acts to secure the latching position and is supported on the support wall 44.
  • Figure 2 shows the fixing of the cover 11 on a second counter bearing 50 of a different design.
  • This is an essentially flat component, for example a sheet metal, on which the circuit board 16 with the LEDs 15 arranged thereon rests and is covered by the light component 11.
  • the counter-bearing 50 has an opening 51, the edges of which form the retaining contour and here interact with the first latching hook 22 for fixing the component 11 on the counter-bearing 50.
  • the detailed representation according to section A in Figure 2 shows that the width of the opening is roughly the same as the width of the corresponds to the first latching element 22 and the first latching element 22 must be pivoted in the direction of the latching arm 20 to pass through the opening 51.
  • the first latching hook 22 pivots about a pivot axis that is remote from the lighting component and is located in the region of the free end of the latching arm 21.
  • the locking arm 21 can be moved about a pivot axis close to the lamp component, so that the total overtravel movement for inserting the locking element 20 into the opening 51 between the locking arm 21 and the first locking hook 22 can be divided. In this way, the necessary forces can be distributed over the locking element 20 in order to avoid overload moments in individual areas.
  • Figure 3 also shows the advantage of the compensating contour of the first latching hook 22. Due to its stepped contour, it can engage behind different sheet metal thicknesses or counter-bearing thicknesses, so that a secure position of the cover 11 on the second counter-bearing 50 is ensured.
  • the unused latching hook 23, in this case the second latching hook 23, acts to prevent loosening. If and to the extent that tensile forces or releasing forces act on the luminaire component 11, the latching element is supported securely on the counter bearing 50 via the first latching hook with its pivot axis remote from the luminaire component. An imaginary releasing movement of the cover 11 away from the counter bearing 50 does not lead to the pivoting of the first latching hook 22, for example, but to a further pivoting out and thus wedging. In this way, the axial position of the first latching element remote from the luminaire component is of considerable advantage in terms of securing the fastening.

Abstract

Die Erfindung bezieht sich auf ein Leuchtenbauteil, insbesondere Abdeckung für eine Lichtquelle, wie beispielweise eine Optik, zur Festlegung auf einem Gegenlager, insbesondere Halteblech, Halteprofil oder Kühlkörper, mit einem Befestigungselement, mittels dessen das Leuchtenbauteil am Gegenlager befestigbar ist, und ist dadurch gekennzeichnet, dass das Befestigungselement ein Rastelement ist, das Rastelement einen Rastarm ausbildet, das der Rastarm dem Leuchtenbauteil in Einsteckrichtung entspringt und ein in Einsteckrichtung vorn liegendes, freies Ende und ein am Leuchtenbauteil angebundenes Ende aufweist, das Rastelement einen ersten, keilförmigen Rasthaken aufweist, wobei die Keilspitze des ersten Rasthakens in Richtung des freien Endes des Rastelementes weist, die der Keilspitze abgewandte, leuchtenbauteilnahe Rückenfläche als Haltefläche dient und den Hinterschnitt des ersten Rasthakens ausbildet, wenigstens eine Seitenfläche des ersten Rasthakens in einem Winkel zur Einsteckrichtung ausgestellt ist, der erste Rasthaken rückstellelastisch schwenkbar im Rastelement gelagert ist, die Schwenkachse des ersten Rasthakens leuchtenbauteilfern und nahe des freien Endes des Restelementes befindlich ist.The invention relates to a lamp component, in particular a cover for a light source, such as an optic, for fixing on a counter bearing, in particular a retaining plate, holding profile or heat sink, with a fastening element by means of which the lamp component can be fastened to the counter bearing, and is characterized in that: that the fastening element is a latching element, the latching element forms a latching arm, which the latching arm rises from the lamp component in the insertion direction and has a free end lying at the front in the insertion direction and an end connected to the lamp component, the latching element has a first, wedge-shaped latching hook, the wedge tip of the first latching hook points in the direction of the free end of the latching element, the back surface facing away from the wedge tip and close to the luminaire component serves as a holding surface and forms the undercut of the first latching hook, at least one side surface of the first latching hook at an angle to the insertion direction device is issued, the first latching hook is resiliently pivotally mounted in the latching element, the pivot axis of the first latching hook is remote from lighting components and is located near the free end of the remaining element.

Description

Die Erfindung betrifft ein Leuchtenbauteil, insbesondere Abdeckung für eine Lichtquelle, wie beispielweise eine Optik, zur Festlegung auf einem Gegenlager, insbesondere Halteblech, Halteprofil oder Kühlkörper, mit einem Befestigungselement, mittels dessen das Leuchtenbauteil am Gegenlager befestigbar ist.The invention relates to a luminaire component, in particular a cover for a light source, such as an optic, for fixing on a counter bearing, in particular a retaining plate, retaining profile or heat sink, with a fastening element by means of which the lamp component can be fastened to the counter bearing.

Gattungsgemäße Leuchtenbauteile, insbesondere als Abdeckung für eine Lichtquelle in Form einer lichtdurchlässigen, optisch das Licht in seiner Verteilung beeinflussenden Kunststoffabdeckung, die gemeinhin auch als Optik bezeichnet werden, sind beispielsweise aus WO2014/184422A1 bekannt.Luminaire components of the generic type, in particular as a cover for a light source in the form of a translucent plastic cover which optically influences the distribution of the light and which are commonly referred to as optics, are for example made of WO2014 / 184422A1 known.

Üblicherweise werden für solche Abdeckungen Kunststoffe wie Polycarbonat oder Polymethylmethacrylat verwendet. Beide Kunststoffe lassen sich in transparenter, lichtdurchlässiger Weise herstellen und eignen sich hervorragend, um im Spritz-Gieß-Prozess optische Elemente in die jeweilige Abdeckung einzuarbeiten. Mittels dieser optischen Elemente ist es möglich, das von einer Lichtquelle ausgehende Licht in seiner Verteilung in gewünschter Weise zu richten. Dies ist insbesondere bei LED-Lichtquellen erforderlich.Usually, plastics such as polycarbonate or polymethyl methacrylate are used for such covers. Both plastics can be produced in a transparent, translucent manner and are ideally suited for incorporating optical elements into the respective cover using the injection-molding process. By means of these optical elements it is possible to direct the light emanating from a light source in its distribution in the desired manner. This is particularly necessary with LED light sources.

Beide Kunststoffe unterscheiden sich jedoch hinsichtlich ihres Elastizitätsverhaltens. Polycarbonat ist ein vergleichsweise elastischer Kunststoff, Polymethylmethacrylat hingegen eher spröde. Demzufolge neigt Polycarbonat unter Belastung zu rückstellelastischer Verformung, wohingegen Polymethylmethacrylat eher zu Brüchen neigt.However, both plastics differ in terms of their elasticity behavior. Polycarbonate is a comparatively elastic plastic, whereas polymethyl methacrylate is rather brittle. As a result, polycarbonate tends to resiliently deform under load, whereas polymethyl methacrylate tends to break.

Die Eigenschaften beider Kunststoffe sind Grund dafür, dass gattungsgemäße Leuchtenbauteile in der Leuchtenfertigung mit separaten Befestigungsmitteln wie Schrauben oder Raststiften in einem separaten Arbeitsgang an entsprechenden Gegenlagern befestigt werden. Auf diese Weise ist sichergestellt, dass die Abdeckungen ausreichend am Gegenlager fixiert sind und es nicht zu Brüchen oder Verformungen kommt, die zu einem Lösen des Leuchtenbauteils vom Gegenlager führen.The properties of both plastics are the reason that generic light components in light production with separate fastening means such as screws or locking pins in a separate Operation to be attached to corresponding counter bearings. In this way it is ensured that the covers are adequately fixed on the counter bearing and that there are no breaks or deformations that lead to the luminaire component becoming detached from the counter bearing.

Dieser separate Befestigungsschritt ist in vielerlei Hinsicht nachteilig in der Fertigung, da bei der Verwendung separater Befestigungsmittel wie Schrauben oder Raststifte das auf das Leuchtenbauteil wirkende Kraftmoment innerhalb bestimmter Toleranzen gehalten werden muss. Anderenfalls droht eine Schädigung des Leuchtenbauteils bei der Montage. Die Messung und Einhaltung dieses Kraftmomentes insbesondere bei automatisierter erfordert einen hohen Aufwand.This separate fastening step is disadvantageous in many respects in production, since when using separate fastening means such as screws or locking pins, the moment of force acting on the luminaire component must be kept within certain tolerances. Otherwise there is a risk of damage to the luminaire component during assembly. The measurement and maintenance of this moment of force, especially in the case of an automated one, requires a lot of effort.

Aufgabe der Erfindung ist es deshalb, alternative Befestigungsmittel für gattungsgemäße Leuchtenbauteile, insbesondere Abdeckungen für Lichtquellen, also insbesondere optisch wirksame Abdeckungen, zu schaffen, die eine vereinfachte Fertigung ermöglichen und insbesondere den Materialeigenschaften der beiden vorbeschriebenen Kunststoffe entgegenkommt.The object of the invention is therefore to create alternative fastening means for generic lighting components, in particular covers for light sources, i.e. in particular optically effective covers, which enable simplified production and in particular meet the material properties of the two plastics described above.

Gelöst wird die Aufgabe von einem Leuchtenbauteil mit den Merkmalen des Anspruches 1, insbesondere mit dessen kennzeichnenden Merkmalen, wonach das Befestigungselement ein Rastelement ist, das Rastelement einen Rastarm ausbildet, das der Rastarm dem Leuchtenbauteil in Einsteckrichtung entspringt und ein in Einsteckrichtung vorn liegendes, freies Ende und ein am Leuchtenbauteil angebundenes Ende aufweist, das Rastelement einen ersten, keilförmigen Rasthaken aufweist, wobei die Keilspitze des ersten Rasthakens in Richtung des freien Endes des Rastelementes weist, die der Keilspitze abgewandte, leuchtenbauteilnahe Rückenfläche als Haltefläche dient und den Hinterschnitt des ersten Rasthakens ausbildet, wenigstens eine Seitenfläche des ersten Rasthakens in einem Winkel zur Einsteckrichtung ausgestellt ist, der erste Rasthaken rückstellelastisch schwenkbar im Rastelement gelagert ist, die Schwenkachse des ersten Rasthakens leuchtenbauteilfern und nahe des freien Endes des Restelementes befindlich ist. Die Schwenkachse befindet sich zudem im Bereich der Keilspitze des ersten Rasthakens.The object is achieved by a luminaire component with the features of claim 1, in particular with its characterizing features, according to which the fastening element is a latching element, the latching element forms a latching arm, which the latching arm arises from the luminaire component in the insertion direction and a free end in the insertion direction and has an end connected to the luminaire component, the latching element has a first, wedge-shaped latching hook, the wedge tip of the first latching hook pointing in the direction of the free end of the latching element, the back surface facing away from the wedge tip and close to the luminaire component serving as a holding surface and forming the undercut of the first latching hook, at least one side surface of the first locking hook at an angle to the insertion direction is issued, the first latching hook is pivotably resiliently mounted in the latching element, the pivot axis of the first latching hook is remote from the lighting component and is located near the free end of the remaining element. The pivot axis is also located in the area of the wedge tip of the first locking hook.

Zunächst nutzt die Erfindung erstmals Rastelemente in Form von Rasthaken zur Festlegung von besagten Leuchtenbauteilen, insbesondere optischen Abdeckungen für Lichtquellen, wobei es sich hierbei insbesondere um Platinen mit einer oder mehrerer aufgesetzten LEDs als Licht emittierende Quelle handelt. Dies erleichtert die Montage erheblich, da das Aufsetzen auf das Gegenlager und die Befestigung am Gegenlager ein und derselbe Arbeitsschritt ist.First of all, the invention uses latching elements in the form of latching hooks for the first time to fix said lamp components, in particular optical covers for light sources, this being in particular circuit boards with one or more attached LEDs as a light-emitting source. This makes the assembly much easier, since the placement on the counter bearing and the attachment to the counter bearing are one and the same work step.

Es ist Eigenart von Rastelementen, insbesondere der am Rastarm angeordneten Rasthaken, dass diese zur Befestigung am Gegenlager an einer geeigneten Haltekontur, beispielsweise einem Durchbruch, angreifen und hierzu eine Ausweichbewegung um die Haltekontur herum ausführen. Hierzu muss das Rastelement eine rückstellelastische Verformbarkeit aufweisen, um an der Haltekontur einzuhaken. Deshalb verformt sich in der Regel der Rastarm um eine Achse und führt quasi eine Schwenkbewegung um diese Achse durch.It is a peculiarity of latching elements, in particular the latching hooks arranged on the latching arm, that they engage a suitable holding contour, for example an opening, for attachment to the counter bearing and, for this purpose, perform an evasive movement around the holding contour. For this purpose, the latching element must be able to be resiliently deformed in order to hook onto the retaining contour. Therefore, the locking arm is usually deformed around an axis and practically performs a pivoting movement around this axis.

Das erfindungsgemäße Rastelement ist mit einem Rasthaken versehen, dessen Schwenkachse leuchtenbauteilfern angeordnet ist. Infolgedessen führt der Rasthaken beim Eingriff in die Rastkontur des Gegenlagers eine vom Leuchtenbauteil Schwenkbewegung auf einer Kreislinie aus, deren Mittelpunkt etwa mit der Keilspitze zusammen fällt, aus. Diese besondere Lage der Schwenkachse des ersten Rasthakens erlaubt es, die Rastelementdimensionen an einerseits das zähelastische Polycarbonat und andererseits an das eher spröde Polymethylmethacrylat anzupassen. Soweit ist die Lage der Schwenkachse des ersten Rasthakens eines der wesentlichen Merkmale, um optisch wirksame Abdeckungen aus den zuvor genannten Kunststoffen mittels Rasthaken, also vereinfacht an einem Gegenlager festlegen zu können.The locking element according to the invention is provided with a locking hook, the pivot axis of which is arranged remote from the lamp component. As a result, when engaging the latching contour of the counter-bearing, the latching hook executes a pivoting movement on a circular line from the luminaire component, the center of which roughly coincides with the tip of the wedge. This special position of the pivot axis of the first latching hook allows the latching element dimensions to be adapted to the tough elastic polycarbonate on the one hand and to the rather brittle polymethyl methacrylate on the other hand. As far as the position of the pivot axis of the first locking hook is one of the essential features in order to be able to fix optically effective covers made of the aforementioned plastics by means of locking hooks, that is to say in a simplified manner on a counter bearing.

Besonders bevorzugt ist ein Leuchtenbauteil, welches sich dadurch kennzeichnet, dass der Rastarm eine leuchtenbauteilfern mit einem Steg geschlossene, insbesondere ringartige Ausnehmung aufweist, der erste Ratshaken innerhalb der Ausnehmung angeordnet und an dem Steg angebunden ist, insbesondere wenn die Schwenkachse des ersten Rasthakens im Bereich der Anbindung des ersten Rasthakens an dem Steg liegt, wobei insbesondere der Steg die Schwenkachse des ersten Rasthakens bildet.A luminaire component is particularly preferred which is characterized in that the latching arm has an in particular ring-like recess closed with a web remote from the luminaire component, the first council hook is arranged within the recess and connected to the web, in particular when the pivot axis of the first latching hook is in the area of the Connection of the first latching hook lies on the web, the web in particular forming the pivot axis of the first latching hook.

Die Lagerung des Rasthakens in der vorbeschriebenen Ausnehmung sowie dessen Anbindung an den Rastarm erlaubt es, die Spannungsbelastungen des Kunststoffes bei der Überhubbewegung zum Eingreifen in die Haltekontur des Gegenlagers optimal zu verteilen.The storage of the latching hook in the recess described above and its connection to the latching arm allows the tension loads on the plastic during the overtravel movement to be optimally distributed in order to engage in the retaining contour of the counter-bearing.

Wenn dann vorgesehen ist, dass der Rastarm um eine leuchtenbauteilnahe Schwenkachse federrückstellelastisch schwenkbar ausgebildet ist, lässt sich die für den Überhub erforderliche Schwenkbewegung auf zwei unterschiedliche Materialbereiche des Rastelementes verteilen, so dass die Spannungsbelastungen sich auf zwei Schwenk- bzw. Biegebereiche aufteilen. Dies ist ein weiteres konstruktives Merkmal, um beim eher zähelastischen Polycarbonat dauerhafte Verformungen durch Überschreiten der Rückstellelastizität zu vermeiden und bei der Nutzung von Polymethylmethacrylat Brüche durch zu hohe Spannungsbelastungen zu verhindern.If it is then provided that the locking arm is designed to be resiliently pivotable about a pivot axis close to the lamp component, the pivoting movement required for the overtravel can be distributed over two different material areas of the locking element, so that the tension loads are divided between two pivoting or bending areas. This is a further design feature in order to avoid permanent deformations in the case of viscoplastic polycarbonate by exceeding the resilience elasticity and, when using polymethyl methacrylate, to prevent fractures due to excessive stress.

Vorgesehen ist ferner, dass das Rastelement einen zweiten Rasthaken aufweist, wobei die Keilspitze des zweiten Rasthakens ebenfalls in Richtung des freien Endes des Rastelementes weist, die der Keilspitze abgewandte, leuchtenbauteilnahe Rückenfläche ebenfalls als Haltefläche dient und den Hinterschnitt des zweiten Rasthakens bildet, wenigstens eine Seitenfläche des zweiten Rasthakens ebenfalls in einem Winkel zur Einsteckrichtung jedoch in Bezug auf den Ausstellwinkel des ersten Rasthakens gegensinnig ausgestellt ist, so dass der zweite Rasthaken gegensinnig zum ersten Rasthaken ausgestellt ist, der zweite Rasthaken ebenfalls rückstellelastisch schwenkbar am Rastelement gelagert ist, die Schwenkachse des zweiten Rasthakens jedoch leuchtenbauteilnah und entfernt des freien Endes des Rastelementes befindlich ist. Die Schwenkachse liegt also keilspitzenfern bzw. halteflächennah, insbesondere zwischen der Haltefläche des zweiten Rasthakens und dem Leuchtenbauteil.It is also provided that the locking element has a second locking hook, the wedge tip of the second locking hook also pointing in the direction of the free end of the locking element, that of the wedge tip The back surface facing away and close to the luminaire component also serves as a holding surface and forms the undercut of the second snap-in hook, at least one side surface of the second snap-in hook is also at an angle to the insertion direction, but in the opposite direction in relation to the opening angle of the first snap-in hook, so that the second snap-in hook is opposite to the first snap-in hook is issued, the second latching hook is also pivotably resiliently mounted on the latching element, but the pivot axis of the second latching hook is located close to the lamp component and away from the free end of the latching element. The pivot axis is therefore remote from the wedge tip or close to the holding surface, in particular between the holding surface of the second latching hook and the lamp component.

Durch das Vorsehen eines zweiten Rasthakens am Rastelement lässt sich zunächst ein und dieselbe Abdeckung an voneinander abweichende Haltekonturen zweier zumindest auf die Haltekonturen unterschiedlicher Gegenlager anpassen. So kann ein und dieselbe Abdeckung sowohl für das Gegenlager erster Bauart als auch das Gegenlager zweiter Bauart genutzt werden.By providing a second latching hook on the latching element, one and the same cover can initially be adapted to retaining contours that differ from one another in two counter bearings that are at least different from the retaining contours. One and the same cover can thus be used both for the counter-bearing of the first type and for the counter-bearing of the second type.

Vorgesehen ist, dass das der zweite Rasthaken am Arm des Rastelementes außerhalb der Ausnehmung angeordnet ist.It is provided that the second latching hook is arranged on the arm of the latching element outside the recess.

Es ist vorgesehen, dass der Steg Teil des freien Endes des Rastarmes ist, insbesondere, wenn der Steg die Keilspitze des zweiten und insbesondere auch des ersten Rasthakens bildet.It is provided that the web is part of the free end of the locking arm, in particular when the web forms the wedge tip of the second and in particular also of the first locking hook.

Wenn vorgesehen ist, dass die Schwenkbewegung des ersten und zweiten Rasthakens beim Verankern des Leuchtenbauteils im Gegenlager gegensinnig ist, ist gewährleistet, dass die Verteilung der Biege- bzw. Schwenkspannung bei der für das Eingreifen in die Haltekontur notwendige Überhubbewegung auch bei Vorhandensein zweier Rasthaken aufteilbar ist.If it is provided that the pivoting movement of the first and second latching hooks when the lamp component is anchored in the counter-bearing is in opposite directions, it is ensured that the distribution of the bending or pivoting stress when engaging in the retaining contour necessary overtravel movement can be divided even when two locking hooks are present.

Vorgesehen ist ferner, dass das Leuchtenbauteil Rastelementnah Zentrierkonturen ausbildet, die die mit einer Zentrierkontur des Gegenlagers zusammenwirken, um das Leuchtenbauteil lagegerecht auf dem Gegenlager anzuordnen.It is also provided that the luminaire component forms centering contours close to the locking element, which interact with a centering contour of the counter-bearing in order to arrange the luminaire component in the correct position on the counter-bearing.

Die Stützstrukturen ermöglichen es, mit dem Aufsetzen und Festlegen der Abdeckung auch die abzudeckende Lichtquelle, also insbesondere die mit LEDs versehene Platine, auf dem Gegenlager festzulegen, so dass eine separate Befestigung der Platine nicht erforderlich ist.The support structures make it possible to also fix the light source to be covered, in particular the board provided with LEDs, on the counter bearing when the cover is placed and fixed, so that a separate fastening of the board is not necessary.

Alternativ ist es denkbar, dass die vor Aufsetzen der Abdeckung aufs Gegenlager am Gegenlager festgelegte Platine durch die Stützstrukturen des Leuchtenbauteils einen zusätzlichen Anpressdruck an das Gegenlager erfährt. Insbesondere bei größeren Platinenabmessungen wird so ein gleichmäßiger Andruck über die gesamte Platinenfläche hinweg am Gegenlager gewährleistet. Da das Gegenlager häufig Kühlkörper ist, wird hierdurch die Wärmeabfuhr von der Platine an den Kühlkörper optimiert.Alternatively, it is conceivable that the board, which is fixed on the counter-bearing before the cover is placed on the counter-bearing, experiences additional contact pressure on the counter-bearing through the support structures of the luminaire component. In this way, especially with larger board dimensions, an even pressure on the counter bearing is guaranteed over the entire board surface. Since the counter bearing is often a heat sink, this optimizes the dissipation of heat from the board to the heat sink.

Vorgesehen ist ferner, dass einer der zwei Rasthaken eine das Leuchtenbauteil im Gegenlager verankernder Funktion durch Hintergreifen des Gegenlagers aufweist, wohingegen der andere Rasthaken eine die verankernde Funktion sichert, indem das Rastelement gegen eine Lösebewegung am Gegenlager abzustützen in der Lage ist.It is also provided that one of the two locking hooks has a function of anchoring the lamp component in the counter bearing by engaging behind the counter bearing, whereas the other locking hook secures the anchoring function by the locking element being able to support against a loosening movement on the counter bearing.

Bei dieser erfindungsgemäßen Ausgestaltung werden die zwei Rasthaken nicht nur genutzt, um ein- und dieselbe Optik an wahlweise einem von zwei unterschiedlich ausgestalteten Gegenlagern festzulegen. Zusätzlich wird der jeweils nicht zur Befestigung genutzte Rasthaken zur Stabilisierung bzw. Stützung der Rastverbindung genutzt und verbessert so die Festlegung des Leuchtenbauteils bei der Rastverbindung tendenziell lösenden Belastungen.In this embodiment according to the invention, the two latching hooks are not only used to fix one and the same optics to either one of two differently designed counter bearings. In addition, the locking hook that is not used for fastening is used for Stabilization or support of the latching connection is used and thus improves the fixing of the luminaire component in the case of the latching connection which tends to release loads.

Vorgesehen ist ferner, dass die Haltefläche des ersten Rasthakens eine in gestufte, gekrümmte oder geneigte Oberfläche aufweist, und Toleranzen der Materialstärke des Gegenlagers ausgleichen zu können.It is also provided that the holding surface of the first latching hook has a stepped, curved or inclined surface and to be able to compensate for tolerances of the material thickness of the counter bearing.

Vorgesehen ist auch, dass die Schwenkachse des Rastarms und die Schwenkachse des zweiten Rasthakens in Ihrer Lage zusammenfallen.It is also provided that the pivot axis of the locking arm and the pivot axis of the second locking hook coincide in their position.

Zur Lösung der Erfindungsaufgabe trägt darüber hinaus ein Gegenlager bei, welches sich zunächst dadurch kennzeichnet, dass das Gegenlager eine Durchtrittskontur für das Rastelement aufweist, deren Weite geringer ist als die durch die Hinterschnitte des ersten und zweiten Rasthakens definierte Weite des Rastelementes.A counter-bearing also contributes to the solution of the invention, which is initially characterized in that the counter-bearing has a passage contour for the locking element, the width of which is smaller than the width of the locking element defined by the undercuts of the first and second locking hooks.

Vorgesehen ist ferner, dass das Gegenlager eine Haltekontur ausbildet, die mit einem der Rasthaken kooperiert, um das Leuchtenbauteil am Gegenlager festzulegen und dass das Gegenlager eine Stützkontur ausbildet, die mit dem anderen Rasthaken kooperiert, um eine die Festlegung des Leuchtenbauteils am Gegenlager lösende Lösebewegung des Rastelementes zu blockieren.It is also provided that the counter-bearing forms a holding contour that cooperates with one of the locking hooks to fix the lamp component on the counter-bearing and that the counter-bearing forms a support contour that cooperates with the other locking hook in order to release a loosening movement of the lamp component on the counter-bearing To block locking element.

Die Erfindung wird nunmehr anhand eines Ausführungsbeispieles beschrieben, woraus sich weitere Merkmale und Vorteile der Erfindung ergeben. Es zeigen:

Figur 1
eine perspektivische Teildarstellung eines erfindungsgemäßen Leuchtenbauteils in Ansicht auf die dem Gegenlager zugewandte Unterseite,
Figur 2
eine Querschnittdarstellung durch das erfindungsgemäße Leuchtenbauteil in Anordnung auf einem Gegenlager erster Art,
Figur 3
eine Detailansicht gemäß Ausschnittskreis A in Figur 2,
Figur 4
die Darstellung des erfindungsgemäßen Leuchtenbauteils in Anordnung auf einem Gegenlager zweiter Art in Querschnittdarstellung,
Figur 5
eine Detaildarstellung gemäß Ausschnittskreis B in Figur 4,
Figur 6
eine Teildarstellung des erfindungsgemäßen Leuchtenbauteils mit Darstellung eines Rastelementes in Seitenansicht,
Figur 7
das Rastelement gemäß Figur 6 in Stirnansicht.
The invention will now be described on the basis of an exemplary embodiment, from which further features and advantages of the invention result. Show it:
Figure 1
a perspective partial representation of a lamp component according to the invention in view of the underside facing the counter bearing,
Figure 2
a cross-sectional view through the lamp component according to the invention arranged on a counter bearing of the first type,
Figure 3
a detailed view according to section A in Figure 2 ,
Figure 4
the representation of the luminaire component according to the invention arranged on a counter bearing of the second type in a cross-sectional view,
Figure 5
a detailed representation according to section B in Figure 4 ,
Figure 6
a partial representation of the lamp component according to the invention with representation of a locking element in side view,
Figure 7
the locking element according to Figure 6 in front view.

In den Figuren ist eine Anordnung von erfindungsgemäßem Leuchtenbauteil und Gegenlager insgesamt mit der Bezugsziffer 10 versehen, das erfindungsgemäße Leuchtenbauteil trägt die Bezugsziffer 11.In the figures, an arrangement of the lamp component according to the invention and the counter bearing is provided overall with the reference number 10, the lamp component according to the invention has the reference number 11.

Das in Figur 1 dargestellte Leuchtenbauteil 11 ist eine optisch wirksame Abdeckung aus einem transparenten Kunststoff, wie beispielsweise Polycarbonat oder Polymethylmethacrylat. Es verfügt über eine Lichtaustrittswand 12, in die mit ihrer in Richtung der nicht dargestellten Lichtquelle weisenden Unterseite dem Betrachter der Figur 1 zugewandt ist.This in Figure 1 The lamp component 11 shown is an optically effective cover made of a transparent plastic such as polycarbonate or polymethyl methacrylate. It has a light exit wall 12 into which the viewer can see the underside pointing in the direction of the light source (not shown) Figure 1 is facing.

Die Lichtaustrittswand 12 trägt auf ihrer Unterseite zunächst optisch wirksame Elemente 13, die vom Leuchtenbauteilmaterial selbst ausgebildet sind. Hierbei handelt es sich um beispielsweise Streu- oder Sammellinsen mit einem Aufnahmenapf 14, der die LED 15 einer in den Figuren 2 und 4 dargestellten LED-Platine überfängt. Haltedorne 17 dienen dazu, die LED-Platine 16 zwischen sich und einem Gegenlager zu halten und eine gleichmäßige Anlage der LED-Platine 16 am Gegenlager sicherzustellen. Auf diese Weise ist eine gute Wärmeübertragung zwischen Platine 16 und Gegenlager gewährleistet.The light exit wall 12 initially carries optically effective elements 13 on its underside, which are made from the luminaire component material itself are trained. These are, for example, divergent or convergent lenses with a receiving cup 14, which the LED 15 in the Figures 2 and 4th LED board shown overlapped. Retaining pins 17 are used to hold the LED circuit board 16 between them and a counter bearing and to ensure that the LED circuit board 16 rests evenly on the counter bearing. In this way, a good heat transfer between the plate 16 and the counter bearing is guaranteed.

Zentrierstifte 18 positionieren die Platine 16 relativ zu den optischen Elementen 13, um eine korrekte Lichtlenkung durch die optischen Elemente 13 sicherzustellen.Centering pins 18 position the circuit board 16 relative to the optical elements 13 in order to ensure correct light guidance through the optical elements 13.

Seitenwände 19 der optisch wirksamen Abdeckung 11 verfügen über insgesamt mit dem Bezugszeichen 20 versehene Rastelemente mit einem Rastarm 21, der einen ersten Rasthaken 22 und einen zweiten Rasthaken 23 trägt.Side walls 19 of the optically effective cover 11 have latching elements, provided overall with the reference number 20, with a latching arm 21 which carries a first latching hook 22 and a second latching hook 23.

Im Bereich der Rastelemente 20, unmittelbar neben dem Rastarm 21, bilden die Seitenwände 19 Zentrierkonturen 24 aus. Diese greifen in nicht näher beschriebener Weise in die Haltekontur eines Gegenlagers ein, um die Abdeckung 11 relativ zum Gegenlager lagegerecht zu positionieren. Im Bereich der Rastelemente 20 befinden sich weiterhin Stützstege 25, welche auf dem Gegenlager aufsitzen, um die Abdeckung 11 im Bereich der in die Haltekontur des Gegenlagers eingreifenden Rastelemente zu stabilisieren.In the area of the locking elements 20, directly next to the locking arm 21, the side walls 19 form centering contours 24. These engage in the retaining contour of a counter-bearing in a manner not described in detail in order to position the cover 11 in the correct position relative to the counter-bearing. In the area of the locking elements 20 there are also supporting webs 25 which sit on the counter bearing in order to stabilize the cover 11 in the area of the locking elements engaging the retaining contour of the counter bearing.

Die Darstellung der Figur 7, eine Stirnansicht auf das Rastelement 20, zeigt dessen Merkmale im Detail. Das Rastelement 20 verfügt über einen Rastarm 21, welcher dem Leuchtenbauteil in eine Einsteckrichtung X entspringt und ein nicht näher bezeichnetes freies Ende sowie ein am Leuchtenbauteil 11 angebundenes Ende aufweist. Der Rastarm 21 trägt einen ersten Rasthaken 22, der in etwa keilförmig ausgebildet ist. Die erste Keilspitze 26 des ersten Rasthakens weist in Richtung des freien Endes des Rastarmes, wohingegen die der Keilspitze abgewandte erste Rückenfläche 27 des ersten Rasthakens 22 in Richtung Abdeckung 11 weist. Die erste Rückenfläche 27 dient gleichsam als Haltefläche zur Befestigung des Leuchtenbauteils 11 an einem Gegenlager. Der Rasthaken verfügt darüber hinaus über eine erste Seitenfläche 28, die sich von der ersten Keilspitze 26 zur ersten Rückenfläche 27 erstreckt und einen Winkel mit der Einsteckrichtung einschließt. Diese erste Seitenfläche ist gegenüber dem Rastarm seitlich ausgestellt, so dass der erste Rasthaken 22 in eine erste Richtung gegenüber dem Rastarm 21 ausgestellt ist.The representation of the Figure 7 , an end view of the locking element 20, shows its features in detail. The latching element 20 has a latching arm 21 which arises from the lamp component in an insertion direction X and has a free end, not designated in more detail, and an end connected to the lamp component 11. The latching arm 21 carries a first latching hook 22 which is approximately wedge-shaped. The The first wedge tip 26 of the first locking hook points in the direction of the free end of the locking arm, whereas the first back surface 27 of the first locking hook 22 facing away from the wedge tip points in the direction of the cover 11. The first back surface 27 serves, as it were, as a holding surface for fastening the lamp component 11 to a counter bearing. The latching hook also has a first side surface 28 which extends from the first wedge tip 26 to the first back surface 27 and forms an angle with the direction of insertion. This first side face is raised to the side with respect to the latching arm, so that the first latching hook 22 is raised in a first direction with respect to the latching arm 21.

Die erste Rückenfläche 27 bzw. die erste Haltefläche 27 weist eine Ausgleichsstruktur auf, um verschiedene Materialstärken eines Gegenlagers ausgleichen zu können. Im dargestellten Ausführungsbeispiel ist die Rückenfläche gestuft ausgebildet und fällt vom Rastarm ausgehend in Ausstellrichtung des ersten Rasthakens 22 ab. Alternativ kann diese Ausgleichsstruktur in einer entsprechend abfallenden Schrägfläche oder einer gekrümmten Fläche bestehen.The first back surface 27 or the first holding surface 27 has a compensating structure in order to be able to compensate for different material thicknesses of a counter bearing. In the exemplary embodiment shown, the back surface is of a stepped design and, starting from the latching arm, drops off in the deployment direction of the first latching hook 22. Alternatively, this compensation structure can consist of a correspondingly sloping inclined surface or a curved surface.

Der Rastarm 21 trägt sodann einen zweiten Rasthaken 23 mit einer zweiten Keilspitze 30, die in Richtung des freien Endes des Rastarmes 21 weist bzw. hier im Ausführungsbeispiel das freie Ende des Rastarmes 21 bildet. Der zweiten Keilspitze 30 abgewandt bildet der zweite Rasthaken 23 eine zweite Rückenfläche 31 aus, die ebenfalls der Abdeckung 11 zugewandt ist. Eine zweite Seitenfläche 32 des keilförmigen zweiten Rasthakens 23 erstreckt sich von der zweiten Keilspitze 30 bis zur zweiten Rückenfläche 31 und ist dabei im Hinblick auf die Einsteckrichtung X oder die Längserstreckung des Rastarmes 21 geneigt aufgeführt, schließt also ebenfalls einen Winkel mit der Einsteckrichtung ein. Der zwischen zweiter Seitenfläche 32 und Einsteckrichtung X eingeschlossene Winkel ist jedoch betragsmäßig dem zwischen erster Seitenfläche und Einsteckrichtung X eingeschlossenen Winkel entgegengesetzt, der zweite Rasthaken 23 ist somit gegenüber dem Rastarm 21 in entgegengesetzter Richtung ausgestellt. Anders ausgedrückt ist die Ausstellung von erstem Rasthaken 22 und zweitem Rasthaken 23 entgegengesetzt.The latching arm 21 then carries a second latching hook 23 with a second wedge tip 30 which points in the direction of the free end of the latching arm 21 or here in the exemplary embodiment forms the free end of the latching arm 21. Facing away from the second wedge tip 30, the second latching hook 23 forms a second back surface 31 which also faces the cover 11. A second side surface 32 of the wedge-shaped second locking hook 23 extends from the second wedge tip 30 to the second back surface 31 and is inclined with regard to the insertion direction X or the longitudinal extension of the locking arm 21, so it also forms an angle with the insertion direction. The angle enclosed between the second side surface 32 and the direction of insertion X is, however, in terms of amount that between the first side surface and the direction of insertion X. included angle opposite, the second locking hook 23 is thus issued relative to the locking arm 21 in the opposite direction. In other words, the exhibition of the first locking hook 22 and the second locking hook 23 is opposite.

Figur 6 zeigt eine ausschnittsweise Seitenansicht der Abdeckung 11 unter Darstellung des Rastelementes 20. Der Rastarm 21 weist eine Ausnehmung 33 auf, die in etwa ringförmig ist, wobei die Ringkontur hier eine etwa rechteckige ist. Die Ausnehmung 33 ist an ihrer leuchtenbauteilfernen Seite von einem Ringsteg 34 verschlossen. Durch das Einbringen der Ausnehmung 33 in den Rastarm 21 bildet dieser zwei die Ausnehmung 33 einfassende, nicht näher bezeichnete Rastarmstützen aus. Die Ausnehmung 33 wird auf der dem Ringsteg 34 abgewandten Seite durch die Seitenwand 19 der Abdeckung 11 geschlossen. Am Ringsteg 34 ist der erste Rasthaken 22 angeordnet, so dass der Ringsteg 34 gleichsam die Keilspitze 26 des ersten Rasthakens 22 bildet. Der Ringsteg 34 ist gleichzeitig Teil des freien Rastarmendes bzw. Teil der zweiten Keilspitze 30. In Figur 6 ist dargestellt, dass der Ringsteg 34 im Bereich der Anbindung des ersten Rasthakens 22 eine Materialschwächungszone aufweist. Figure 6 shows a partial side view of the cover 11 showing the latching element 20. The latching arm 21 has a recess 33 which is approximately ring-shaped, the ring contour here being approximately rectangular. The recess 33 is closed on its side remote from the luminaire component by an annular web 34. By making the recess 33 in the latching arm 21, the latter forms two latching arm supports that surround the recess 33 and are not designated in any more detail. The recess 33 is closed on the side facing away from the annular web 34 by the side wall 19 of the cover 11. The first locking hook 22 is arranged on the ring web 34, so that the ring web 34 forms, as it were, the wedge tip 26 of the first locking hook 22. The ring web 34 is at the same time part of the free locking arm end or part of the second wedge tip 30. In Figure 6 it is shown that the annular web 34 has a material weakening zone in the area of the connection of the first latching hook 22.

Der erste Rasthaken 22 ist rückstellelastisch schwenkbar am Rastarm 21 bzw. insbesondere an dessen Ringsteg 34 angeordnet. Er kann durch eine entsprechende Krafteinwirkung, beispielsweise bei Überhub über eine Haltekontur eines Gegenlagers, zurück in Richtung des Rastarmes 21 eingeschwenkt werden.The first latching hook 22 is arranged on the latching arm 21 or in particular on its annular web 34 so as to be pivotable in a resilient manner. It can be pivoted back in the direction of the latching arm 21 by a corresponding force, for example in the event of an overstroke over a retaining contour of a counter bearing.

Die Schwenkachse liegt im Anbindungsbereich von Ringsteg 34 und erstem Rasthaken 22, also im Bereich der Keilspitze 26 des ersten Rasthakens 22 bzw. wird bei bevorzugter Ausführungsform durch den Ringsteg 34 gebildet. Um die entsprechende Biegeelastizität des Rastelementmaterials zu gewährleisten, verfügt der Ringsteg 34 über die in Figur 6 dargestellte und vorbeschriebene Materialschwächungszone.The pivot axis lies in the connection area of the ring web 34 and the first locking hook 22, that is to say in the area of the wedge tip 26 of the first locking hook 22 or, in a preferred embodiment, is formed by the ring web 34. In order to achieve the corresponding flexural elasticity of the To ensure locking element material, the ring web 34 has the in Figure 6 Material weakening zone shown and described above.

Der zweite Rasthaken 23 der je nach Sichtweise entweder ebenfalls eine Ausnehmung 33 besitzt oder aber beidseitig des ersten Rasthakens 22 in zweifacher Ausführung vorhanden ist, ist ebenfalls rückstellelastisch schwenkbar ausgebildet, um eine Überhubbewegung beim Eingriff in die Haltekontur eines Gegenlagers zu ermöglichen. Dessen Schwenkachse ist jedoch in etwa im Anbindungsbereich des Rastarms 21 am Leuchtenbauteil 11 bzw. dessen Seitenwand 19 zu suchen bzw. entspricht einer Schwenkachse des Rastarmes 21, welcher die Überhubbewegung des zweiten Rasthakens 23 bei Eingriff in die Haltekontur eines Gegenlagers mit vollzieht.The second latching hook 23, which, depending on the perspective, either also has a recess 33 or is available in duplicate on both sides of the first latching hook 22, is also designed to be resiliently pivotable in order to allow an overtravel movement when engaging the retaining contour of a counter bearing. Its pivot axis is to be found approximately in the connection area of the latching arm 21 on the lamp component 11 or its side wall 19 or corresponds to a pivot axis of the latching arm 21, which carries out the overtravel movement of the second latching hook 23 when it engages the retaining contour of a counter bearing.

Bei Betrachtung der Figuren 6 und 7 wird somit deutlich, dass die Schwenkachse des ersten Rasthakens leuchtenbauteilfern, die Schwenkachse des zweiten Rasthakens hingegen leuchtenbauteilnah angeordnet ist. Die Figur 7 zeigt darüber hinaus, dass aufgrund der gegensinnigen Ausstellung der Rasthaken 22, 23, deren Schwenkbewegung bei Eingriff in die Haltekontur eines Gegenlagers gegensinnig erfolgt.When looking at the Figures 6 and 7th it is thus clear that the pivot axis of the first latching hook is remote from the luminaire component, whereas the pivot axis of the second latching hook is arranged near the luminaire component. The Figure 7 also shows that due to the opposing exposure of the locking hooks 22, 23, their pivoting movement occurs in opposite directions when they engage in the retaining contour of a counter-bearing.

Figur 4 zeigt die Anordnung der erfindungsgemäßen Abdeckung 11 auf einem Gegenlager 40 erster Ausprägung, im Folgenden auch als erstes Gegenlager 40 bezeichnet. Hierbei handelt es sich um ein stark profiliertes Bauteil, auf welchem eine Platine 16 mit einer LED 15 angeordnet ist. Die Platine 16 mit LED 15 bilden die Lichtquelle, welche von der Abdeckung 11 überfangen ist. Dabei nehmen die Aufnahmenäpfe 14 der optischen Elemente 13 die LEDs 15 auf. Figure 4 shows the arrangement of the cover 11 according to the invention on a counter bearing 40 of the first embodiment, hereinafter also referred to as the first counter bearing 40. This is a strongly profiled component on which a circuit board 16 with an LED 15 is arranged. The circuit board 16 with LED 15 form the light source, which is covered by the cover 11. The receiving cups 14 of the optical elements 13 receive the LEDs 15.

Das erste Gegenlager 40 bildet in etwa platinenparallel bzw. lichtaustrittswandparallel vorspringende Griffleisten 41 aus, die in den Nutraum 42 einer Profilnut 43 hinein ragen. Die der Griffleiste 41 gegenüber liegende Nutwand ist als Stützwand 44 ausgebildet. Insgesamt bildet so die Profilnut 43 mit Griffleiste 41, Nutraum 42 und Stützwand 44 insgesamt die Haltekontur 45 für die Festlegung der Abdeckung 11 auf dem ersten Gegenlager 40 dar.The first counter-bearing 40 forms grip strips 41 which protrude approximately parallel to the board or parallel to the light exit wall, which in the Groove space 42 of a profile groove 43 protrude into it. The groove wall opposite the grip strip 41 is designed as a support wall 44. Overall, the profile groove 43 with the grip strip 41, groove space 42 and support wall 44 together forms the retaining contour 45 for securing the cover 11 on the first counter bearing 40.

Anhand der in Figur 5 dargestellten Ausschnittsvergrößerung des Ausschnittskreises B ist ersichtlich, dass zwischen der Griffleiste 41 und der Stützwand 44 ein Durchtritt 46 verbleibt, der in seiner Weite dem zweiten Rasthaken 23 entspricht. Um die Griffleiste 41 zu hintergreifen, muss der Rasthaken 23 jedoch nach außen in Richtung Stützwand 44 ausschwenken, um eine Überhubbewegung über die Griffleiste 41 durchzuführen. Hierbei schwenkt er um eine der Seitenwand 19 nahe, nicht näher bezeichnete Schwenkachse. Gleichzeitig stützt sich jedoch der erste Rasthaken 22 an der Stützwand 44 ab. Um die Überhubbewegung auszuführen, muss dieser gegensinnig zum ersten Rasthaken in Richtung Rastarm 21 einschwenken. Nach dem Hintergreifen des ersten Rasthakens 23 hinter die Griffleiste 41 stützt der wieder ausgeschwenkte erste Rasthaken 22 an der Stützwand 44 ab. Auf diese Weise wird der zweite Rasthaken 23 in seiner fixierenden bzw. befestigenden Rastlage gehalten, wohingegen der erste Rasthaken 22 die Rastlage sichernd wirkt und sich an der Stützwand 44 abstützt.Using the in Figure 5 The enlarged section of the section B shown here shows that a passage 46 remains between the grip strip 41 and the support wall 44, the width of which corresponds to the second latching hook 23. In order to reach behind the grip strip 41, however, the latching hook 23 must pivot outwards in the direction of the support wall 44 in order to carry out an overtravel movement over the grip strip 41. In this case, it pivots about a pivot axis, not designated in any more detail, close to the side wall 19. At the same time, however, the first latching hook 22 is supported on the support wall 44. In order to execute the overtravel movement, it must pivot in the opposite direction to the first locking hook in the direction of the locking arm 21. After the first latching hook 23 has reached behind the grip strip 41, the first latching hook 22, which has been pivoted out again, is supported on the support wall 44. In this way, the second latching hook 23 is held in its fixing or fastening latching position, whereas the first latching hook 22 acts to secure the latching position and is supported on the support wall 44.

Figur 2 zeigt die Festlegung der Abdeckung 11 an einem zweiten Gegenlager 50 abweichender Bauart. Hierbei handelt es sich um ein im Wesentlichen ebenes Bauteil, beispielsweise ein Blech, auf welchem die Platine 16 mit den darauf angeordneten LEDs 15 aufliegt und von dem Leuchtenbauteil 11 überfangen ist. Das Gegenlager 50 verfügt über eine Durchbrechung 51, deren Ränder die Haltekontur bilden und hier mit dem ersten Rasthaken 22 zur Festlegung des Bauteils 11 auf dem Gegenlager 50 zusammenwirken. Die Detaildarstellung gemäß Ausschnittskreis A in Figur 2 zeigt, dass die Durchbrechung in ihrer Weite in etwa der Weite des ersten Rastelementes 22 entspricht und das erste Rastelement 22 zum Durchtritt durch die Durchbrechung 51 in Richtung Rastarm 20 eingeschwenkt werden muss. Nur so ist die erforderliche Überhubbewegung des ersten Rasthakens 21 beim Hindurchbewegen durch die Durchbrechung 51 möglich. Hierzu schwenkt der erste Rasthaken 22 um eine leuchtenbauteilferne, im Bereich des freien Endes des Rastarmes 21 liegende Schwenkachse. Zusätzlich kann, was insbesondere bei spröden Kunststoffen von Vorteil ist, der Rastarm 21 um eine leuchtenbauteilnahe Schwenkachse bewegt werden, so dass die Gesamtüberhubbewegung zum Einsetzen des Rastelementes 20 in die Durchbrechung 51 zwischen Rastarm 21 und erstem Rasthaken 22 aufgeteilt werden kann. So lassen sich die notwendigen Kräfte über das Rastelement 20 verteilen, um Überlastmomente in einzelnen Bereichen zu vermeiden. Figure 2 shows the fixing of the cover 11 on a second counter bearing 50 of a different design. This is an essentially flat component, for example a sheet metal, on which the circuit board 16 with the LEDs 15 arranged thereon rests and is covered by the light component 11. The counter-bearing 50 has an opening 51, the edges of which form the retaining contour and here interact with the first latching hook 22 for fixing the component 11 on the counter-bearing 50. The detailed representation according to section A in Figure 2 shows that the width of the opening is roughly the same as the width of the corresponds to the first latching element 22 and the first latching element 22 must be pivoted in the direction of the latching arm 20 to pass through the opening 51. Only in this way is the required overtravel movement of the first latching hook 21 possible when it is moved through the opening 51. For this purpose, the first latching hook 22 pivots about a pivot axis that is remote from the lighting component and is located in the region of the free end of the latching arm 21. In addition, which is particularly advantageous in the case of brittle plastics, the locking arm 21 can be moved about a pivot axis close to the lamp component, so that the total overtravel movement for inserting the locking element 20 into the opening 51 between the locking arm 21 and the first locking hook 22 can be divided. In this way, the necessary forces can be distributed over the locking element 20 in order to avoid overload moments in individual areas.

Figur 3 zeigt darüber hinaus den Vorteil der Ausgleichskontur des ersten Rasthakens 22. Dieser kann durch seine gestufte Kontur unterschiedliche Blechdicken bzw. Gegenlagerdicken hintergreifen, so dass eine sichere Lage der Abdeckung 11 auf dem zweiten Gegenlager 50 gewährleistet ist. Figure 3 also shows the advantage of the compensating contour of the first latching hook 22. Due to its stepped contour, it can engage behind different sheet metal thicknesses or counter-bearing thicknesses, so that a secure position of the cover 11 on the second counter-bearing 50 is ensured.

Auch bei der Festlegung des Leuchtenbauteils 11 am zweiten Gegenlager 50 wirkt der nicht genutzte, hier also der zweite Rasthaken 23, sichernd gegen ein Lösen. Sofern und soweit Zugkräfte oder lösende Kräfte auf das Leuchtenbauteil 11 wirken, stützt sich das Rastelement über den ersten Rasthaken mit seiner leuchtenbauteilfernen Schwenkachse sicher am Gegenlager 50 ab. Eine gedachte Lösebewegung der Abdeckung 11 weg vom Gegenlager 50 führt aufgrund der Schwenkachslage des ersten Rasthakens 22 nicht etwa zu dessen Einschwenken, sondern zu einem weiteren Ausschwenken und damit Verkeilen. Schon auf diese Weise ist die leuchtenbauteilferne Achslage des ersten Rastelementes von erheblichem, die Befestigung sicherndem Vorteil. Eine Erhöhung der Lösekräfte auf das Leuchtenbauteil 11 würde nun zu einem Einschwenken des zweiten Rastelementes 23 bzw. des Rastarmes 21 um eine leuchtenbauteilnahe Schwenkachse führen, was zu einem Auflaufen des zweiten Rasthakens auf der dem ersten Rasthaken 22 abgewandten Randbereich der Durchbrechung 51 führt. Auf diese Weise stabilisieren sich auch bei der Festlegung des Leuchtenbauteils 11 auf dem zweiten Gegenlager 50 die Rasthaken 22 und 23 gegenseitig und sichern so die Abdeckung 11 zuverlässig auf dem Gegenlager 50.Also when fixing the lamp component 11 on the second counter bearing 50, the unused latching hook 23, in this case the second latching hook 23, acts to prevent loosening. If and to the extent that tensile forces or releasing forces act on the luminaire component 11, the latching element is supported securely on the counter bearing 50 via the first latching hook with its pivot axis remote from the luminaire component. An imaginary releasing movement of the cover 11 away from the counter bearing 50 does not lead to the pivoting of the first latching hook 22, for example, but to a further pivoting out and thus wedging. In this way, the axial position of the first latching element remote from the luminaire component is of considerable advantage in terms of securing the fastening. An increase in the release forces on the luminaire component 11 would now lead to pivoting of the second latching element 23 or the latching arm 21 about a pivot axis close to the lamp component, which leads to the second latching hook running onto the edge region of the opening 51 facing away from the first latching hook 22. In this way, the latching hooks 22 and 23 stabilize each other when the lamp component 11 is fixed on the second counter bearing 50 and thus reliably secure the cover 11 on the counter bearing 50.

Bezugszeichenliste:List of reference symbols:

1010
Anordnung von Leuchtenbauteil und GegenlagerArrangement of luminaire component and counter bearing
1111
Leuchtenbauteil / AbdeckungLuminaire component / cover
1212th
LichtaustrittswandLight exit wall
1313th
optisch wirksame Elementeoptically effective elements
1414th
AufnahmenapfReceptacle
1515th
LEDLED
1616
LED-PlatineLED board
1717th
HaltedornRetaining mandrel
1818th
ZentrierstiftCentering
1919th
SeitenwandSide wall
2020th
RastelementLocking element
2121
RastarmLocking arm
2222nd
erster Rasthakenfirst locking hook
2323
zweiter Rasthakensecond locking hook
2424
ZentrierkonturCentering contour
2525th
StützstegSupport web
2626th
erste Keilspitzefirst chisel tip
2727
erste Rückenflächefirst back surface
2828
erste Seitenflächefirst side face
2929
 
3030th
zweite Keilspitzesecond chisel tip
3131
zweite Rückenflächesecond back surface
3232
zweite Seitenflächesecond side face
3333
AusnehmungRecess
3434
RingstegRing bridge
4040
erstes Gegenlagerfirst counter bearing
4141
GriffleisteHandle bar
4242
NutraumGroove space
4343
ProfilnutProfile groove
4444
StützwandRetaining wall
4545
HaltekonturHolding contour
4646
DurchtrittPassage
XX
EinsteckrichtungInsertion direction

Claims (16)

Leuchtenbauteil (10), insbesondere Abdeckung für eine Lichtquelle, wie beispielweise eine Optik, zur Festlegung auf einem Gegenlager, insbesondere Halteblech, Halteprofil oder Kühlkörper, - mit einem Befestigungselement, mittels dessen das Leuchtenbauteil (10) am Gegenlager befestigbar ist,
dadurch gekennzeichnet, dass - das Befestigungselement ein Rastelement (20) ist, - das Rastelement (20) einen Rastarm (21) ausbildet, - das der Rastarm (21) dem Leuchtenbauteil (10) in Einsteckrichtung X entspringt und ein in Einsteckrichtung X vorn liegendes, freies Ende und ein am Leuchtenbauteil (10) angebundenes Ende aufweist, - das Rastelement (20) einen ersten, keilförmigen Rasthaken (22) aufweist, wobei - die Keilspitze (27) des ersten Rasthakens (22) in Richtung des freien Endes des Rastelementes (20) weist, - die der Keilspitze (27) abgewandte, leuchtenbauteilnahe Rückenfläche (27) als Haltefläche dient und den Hinterschnitt des ersten Rasthakens (22) ausbildet, - wenigstens eine Seitenfläche (28) des ersten Rasthakens (22) in einem Winkel zur Einsteckrichtung X ausgestellt ist, - der erste Rasthaken (22) rückstellelastisch schwenkbar im Rastelement (20) gelagert ist, - die Schwenkachse des ersten Rasthakens (22) leuchtenbauteilfern und nahe des freien Endes des Restelementes befindlich ist. Luminaire component (10), in particular a cover for a light source, such as an optic, for fixing on a counter bearing, in particular a retaining plate, retaining profile or heat sink, - With a fastening element, by means of which the light component (10) can be fastened to the counter bearing,
characterized in that - the fastening element is a latching element (20), - the locking element (20) forms a locking arm (21), - that the latching arm (21) arises from the lamp component (10) in the insertion direction X and has a free end located at the front in the insertion direction X and an end connected to the lamp component (10), - The locking element (20) has a first, wedge-shaped locking hook (22), wherein - the wedge tip (27) of the first locking hook (22) points in the direction of the free end of the locking element (20), - the back surface (27) facing away from the wedge tip (27) and close to the luminaire component serves as a holding surface and forms the undercut of the first locking hook (22), - At least one side surface (28) of the first locking hook (22) is issued at an angle to the insertion direction X, - The first latching hook (22) is mounted in the latching element (20) so as to be resiliently pivotable, - The pivot axis of the first locking hook (22) is remote from the lamp component and is located near the free end of the remaining element. Leuchtenbauteil (10) nach Anspruch 1, dadurch gekennzeichnet, dass der Rastarm eine leuchtenbauteilfern mit einem Steg geschlossene, insbesondere ringartige Ausnehmung aufweist, der erste Rasthaken (22) innerhalb der Ausnehmung angeordnet und an dem Steg angebunden ist.The luminaire component (10) according to claim 1, characterized in that the latching arm has a particularly ring-like recess closed with a web, remote from the luminaire component, the first latching hook (22) is arranged within the recess and connected to the web. Leuchtenbauteil nach Anspruch 2, dadurch gekennzeichnet, dass die Schwenkachse des ersten Rasthakens (22) im Bereich der Anbindung des ersten Rasthakens (22) an dem Steg (34) liegt, wobei insbesondere der Steg (34) die Schwenkachse des ersten Rasthakens (22) bildet.Luminaire component according to claim 2, characterized in that the pivot axis of the first latching hook (22) lies in the area of the connection of the first latching hook (22) to the web (34), the web (34) in particular being the pivot axis of the first latching hook (22) forms. Leuchtenbauteil nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass - das Rastelement (20) einen zweiten Rasthaken (23) aufweist, wobei - die Keilspitze (30) des zweiten Rasthakens (23) ebenfalls in Richtung des freien Endes des Rastelementes (20) weist, - die der Keilspitze (30) abgewandte, leuchtenbauteilnahe Rückenfläche (31) ebenfalls als Haltefläche (31) dient und den Hinterschnitt des zweiten Rasthakens (23) bildet, - wenigstens eine Seitenfläche (32) des zweiten Rasthakens (23) ebenfalls in einem Winkel zur Einsteckrichtung X jedoch in Bezug auf den Ausstellwinkel des ersten Rasthakens (22) gegensinnig ausgestellt ist, so dass der zweite Rasthaken (23) gegensinnig zum ersten Rasthaken (22) ausgestellt ist, - der zweite Rasthaken (23) ebenfalls rückstellelastisch schwenkbar am Rastelement (20) gelagert ist, - die Schwenkachse des zweiten Rasthakens (23) jedoch leuchtenbauteilnah und entfernt des freien Endes des Rastelementes (20) befindlich ist. Luminaire component according to claim 1 or 2, characterized in that - The latching element (20) has a second latching hook (23), wherein - the wedge tip (30) of the second locking hook (23) also points in the direction of the free end of the locking element (20), - the back surface (31) facing away from the wedge tip (30) and close to the luminaire component also serves as a holding surface (31) and forms the undercut of the second locking hook (23), - At least one side surface (32) of the second latching hook (23) is also at an angle to the insertion direction X but in the opposite direction in relation to the opening angle of the first latching hook (22), so that the second latching hook (23) is opposite to the first latching hook (22 ) is issued, - The second latching hook (23) is also mounted on the latching element (20) so as to be resiliently pivotable, - The pivot axis of the second locking hook (23), however, is located near the lamp component and at a distance from the free end of the locking element (20). Leuchtenbauteil nach Anspruch 2 und 4, dadurch gekennzeichnet, dass das der zweite Rasthaken (23) am Arm (21) des Rastelementes (20) außerhalb der Ausnehmung (33) angeordnet ist.Luminaire component according to Claims 2 and 4, characterized in that the second latching hook (23) is arranged on the arm (21) of the latching element (20) outside the recess (33). Leuchtenbauteil nach Anspruch 5, dadurch gekennzeichnet, dass der Steg Teil des freien Endes des Rastarmes ist.Lighting component according to Claim 5, characterized in that the web is part of the free end of the locking arm. Leuchtenbauteil nach Anspruch 5, dadurch gekennzeichnet, dass der Steg (34) die Keilspitze (26, 30) des zweiten und insbesondere auch des ersten Rasthakens (22, 25) bildet.Lighting component according to Claim 5, characterized in that the web (34) forms the wedge tip (26, 30) of the second and in particular also of the first locking hook (22, 25). Leuchtenbauteil nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, dass die Schwenkbewegung des ersten und zweiten Rasthakens (22, 23) beim Verankern des Leuchtenbauteils (11) im Gegenlager (40, 50) gegensinnig ist.Lamp component according to one of Claims 4 to 7, characterized in that the pivoting movement of the first and second latching hooks (22, 23) is in opposite directions when the lamp component (11) is anchored in the counter bearing (40, 50). Leuchtenbauteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Leuchtenbauteil (11) rastelementnah Zentrierkonturen (24) ausbildet, die die mit einer Zentrierkontur des Gegenlagers (40, 50) zusammenwirken, um das Leuchtenbauteil (11) lagegerecht auf dem Gegenlager anzuordnen.Luminaire component according to one of the preceding claims, characterized in that the luminaire component (11) forms centering contours (24) close to the locking element, which interact with a centering contour of the counter bearing (40, 50) in order to arrange the luminaire component (11) in the correct position on the counter bearing. Leuchtenbauteil nach einem der Ansprüche 4 bis 9, dadurch gekennzeichnet, dass einer der zwei Rasthaken (22, 23) eine das Leuchtenbauteil (11) im Gegenlager (40, 50) verankernder Funktion durch Hintergreifen des Gegenlagers (40, 50) aufweist, wohingegen der andere Rasthaken (22, 23) eine die verankernde Funktion sichert, indem dieser Rasthaken (22, 23) das Rastelement (22, 20) gegen eine Lösebewegung am Gegenlager (40, 50) abzustützen in der Lage ist.Lamp component according to one of claims 4 to 9, characterized in that one of the two latching hooks (22, 23) has a function of anchoring the lamp component (11) in the counter bearing (40, 50) by engaging behind the counter bearing (40, 50), whereas the other latching hooks (22, 23) which ensure the anchoring function in that this latching hook (22, 23) is able to support the latching element (22, 20) against a release movement on the counter bearing (40, 50). Leuchtenbauteil nach einem der Ansprüche 2 bis 10, dadurch gekennzeichnet, dass das der erste Rasthaken (22) an die Befestigungsanforderungen eines Gegenlagers (40) erster Art und der zweite Rasthaken (23) an die Befestigungsanforderungen eines Gegenlagers (50) zweiter Art angepasst ist, wobei sich das Gegenlager (40) erster Art vom Gegenlager zweiter Art in baulicher Hinsicht unterscheidet.Lighting component according to one of claims 2 to 10, characterized in that the first latching hook (22) is adapted to the fastening requirements of a counter bearing (40) of the first type and the second latching hook (23) is adapted to the fastening requirements of a counter bearing (50) of the second type, wherein the counter-bearing (40) of the first type differs from the counter-bearing of the second type in structural terms. Leuchtenbauteil nach Anspruch 1, dadurch gekennzeichnet, dass die Haltefläche (27) des ersten Rasthakens (22) eine in gestufte, gekrümmte oder geneigte Oberfläche aufweist, und Toleranzen der Materialstärke des Gegenlagers (40, 50) ausgleichen zu können.Luminaire component according to claim 1, characterized in that the holding surface (27) of the first latching hook (22) has a stepped, curved or inclined surface, and to be able to compensate for tolerances of the material thickness of the counter bearing (40, 50). Leuchtenbauteil nach Anspruch 1, dadurch gekennzeichnet, dass der Rastarm (21) um eine leuchtenbauteilnahe Schwenkachse federrückstellelastisch schwenkbar ausgebildet ist.Luminaire component according to Claim 1, characterized in that the latching arm (21) is designed to be pivotable in a spring-return-elastic manner about a pivot axis close to the luminaire component. Leuchtenbauteil nach Anspruch 4 und 13, dadurch gekennzeichnet, dass die Schwenkachse des Rastarms (21) und die Schwenkachse des zweiten Rasthakens (23) in Ihrer Lage zusammenfallen.Lighting component according to Claims 4 and 13, characterized in that the pivot axis of the locking arm (21) and the pivot axis of the second locking hook (23) coincide in their position. Gegenlager (40, 50) für ein Leuchtenbauteil nach einem der Ansprüche 2 bis 14, dadurch gekennzeichnet, dass das Gegenlager (40, 50) eine Durchtrittskontur für das Rastelement (20) aufweist, deren Weite geringer ist als die durch die Hinterschnitte des ersten und zweiten Rasthakens (22, 23) definierte Weite des Rastelementes (20) ist.Counter bearing (40, 50) for a lamp component according to one of claims 2 to 14, characterized in that the counter bearing (40, 50) has a passage contour for the latching element (20), the width of which is smaller than that through the undercuts of the first and second locking hook (22, 23) defined width of the locking element (20). Gegenlager nach Anspruch 15, dadurch gekennzeichnet, dass das Gegenlager (40, 50) eine Haltekontur ausbildet, die mit einem der Rasthaken (22, 23) kooperiert, um das Leuchtenbauteil (11) am Gegenlager (40, 50) festzulegen und dass das Gegenlager (40, 50) eine Stützkontur (44) ausbildet, die mit dem anderen Rasthaken (22, 23) kooperiert, um eine die Festlegung des Leuchtenbauteils (11) am Gegenlager (40, 50) lösende Lösebewegung des Rastelementes (20) zu blockieren.Counter bearing according to claim 15, characterized in that the counter bearing (40, 50) forms a holding contour which cooperates with one of the latching hooks (22, 23) in order to fix the lamp component (11) on the counter bearing (40, 50) and that the counter bearing (40, 50) forms a support contour (44) which cooperates with the other latching hook (22, 23) in order to block a release movement of the latching element (20) that releases the fixation of the lamp component (11) on the counter bearing (40, 50).
EP20195300.7A 2019-11-04 2020-09-09 Light component for covering a light source Active EP3816503B1 (en)

Applications Claiming Priority (1)

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DE102019129638.2A DE102019129638A1 (en) 2019-11-04 2019-11-04 Luminaire component for covering a light source

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EP (1) EP3816503B1 (en)
CN (1) CN112781013B (en)
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CN112781013B (en) 2023-06-02
PL3816503T3 (en) 2022-10-31
DE102019129638A1 (en) 2021-05-06
US20210131647A1 (en) 2021-05-06
CN112781013A (en) 2021-05-11
US11486564B2 (en) 2022-11-01
EP3816503B1 (en) 2022-03-23

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