EP3745021B1 - Attachment of a support device in an optical cover without additional components - Google Patents

Attachment of a support device in an optical cover without additional components Download PDF

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Publication number
EP3745021B1
EP3745021B1 EP20177138.3A EP20177138A EP3745021B1 EP 3745021 B1 EP3745021 B1 EP 3745021B1 EP 20177138 A EP20177138 A EP 20177138A EP 3745021 B1 EP3745021 B1 EP 3745021B1
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EP
European Patent Office
Prior art keywords
device carrier
cover
optical cover
carrier
projections
Prior art date
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Active
Application number
EP20177138.3A
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German (de)
French (fr)
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EP3745021A1 (en
Inventor
Simon Koebinger
Oliver SPRICK
Lukas Geiger
Ludwig Niedermaier
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Siteco GmbH
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Siteco GmbH
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Publication of EP3745021A1 publication Critical patent/EP3745021A1/en
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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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
    • F21V3/062—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • 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
    • F21V17/14—Bayonet-type fastening
    • 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 present invention relates to a lighting module and in particular to the assembly and attachment of a device mount in an optical cover of the lighting module.
  • Device mounts made of sheet metal are common in the prior art, particularly in the case of lights with LEDs as light sources.
  • the gear trays are inserted in an optical cover or in a housing trough of the light.
  • Various mounting options are known for this.
  • the equipment carrier can simply be screwed on. However, this is expensive in mass production. It is easier to attach a device carrier using snap rings on the plastic domes of the cover or the housing. However, this also requires separate feeding of the snap rings in series production.
  • Another approach envisages designing the lights as so-called “sealed for life” lights, ie the device mount can no longer be removed from the optical cover without destroying it. With this concept, however, it is no longer possible to retrofit components or replace defective components on the equipment carrier.
  • U.S. 2013/294091 A1 discloses a lamp module according to the preamble of claim 1. Other similar lamps are also in JP 2013 251141A , KR 2017 0003837 U , DE 202 11 687 U1 , DE 20 2004 016573 U1 and U.S. 2017/009946 A1 disclosed.
  • a tool-free dismantling of the device carrier should be prevented in order to meet the relevant DIN standard (DIN EN60698 4.3.0).
  • a special feature of the lighting module of the present invention is the fastening concept between the optical cover and the device mount.
  • the cover has projections with undercuts, but these need not be flexible.
  • the projections are inserted through openings in the device carrier and the device carrier is secured by lateral displacement in the undercuts.
  • This concept is easy to implement and can also be designed with a further blocking element in such a way that it can no longer be dismantled without tools.
  • the lateral displacement takes place in the longitudinal direction of a longitudinal extent of the device carrier or in the tangential direction of a circumference of the device carrier.
  • the shift in the longitudinal direction with a device carrier extending longitudinally has the advantage that different thermal expansions between the device carrier, which is preferably made of metal, and the optical cover, which is preferably made of plastic, can be compensated.
  • the positive fit between the projections and the openings can be provided with a sufficient tolerance, so that the equipment carrier can move slightly in relation to the optical cover without impairing the holder.
  • a circular geometry is also possible for smaller lamp modules.
  • the displacement of the device carrier relative to the optical cover is a rotational movement of the device carrier about an axis which is defined by the circular symmetry of the projections on the optical cover or the openings in the device carrier.
  • the equipment carrier is formed from sheet metal by rolling and/or stamping.
  • the manufacturing process is particularly simple and can even be done with pre-painted sheets.
  • the equipment carrier can also serve as a reflector for the LEDs arranged on it.
  • a method is therefore preferred in which the equipment carrier is formed from sheet metal prepainted with a reflective material.
  • the device carrier is after the lateral displacement by a blocking element against movement in a secured in the opposite direction to the shift.
  • the blocking element prevents the equipment carrier from being able to be manually moved away from the projections of the optical cover.
  • the blocking element is preferably designed in such a way that it cannot be dismantled without tools in order to enable the relevant regulations for ENEC certification.
  • the blocking element is preferably integrally connected to the equipment carrier.
  • the device carrier has a sheet metal tongue which can be bent over the cover after the device carrier has been displaced in order to form a stop relative to the cover, so that movement of the device carrier in a direction opposite to the direction of lateral displacement is blocked.
  • the sheet metal tongue can be produced integrally with the device carrier in a bending stamping process, the sheet metal tongue being initially only freely punched and only being bent over after the device carrier has been installed in the optical cover.
  • the optical cover is made of a plastic, in particular PMMA, and the projections are formed integrally with the optical cover. Since the projections according to the invention are not flexible, they can easily be formed integrally with the material of the cover if the cover is made of a plastic, for example by injection molding.
  • the LEDs and live parts on the equipment rack are covered by the cover in the installed state to such an extent that protection against accidental contact is formed.
  • the lighting module essentially consists of two elements, a device mount 2 and an optical cover 4.
  • the device mount 2 is formed from a pre-painted (preferably coil-painted) sheet metal by rolling and punching.
  • the metal sheet has a flat central section on which LEDs 3 (light-emitting diodes, meaning any form of semiconductor light sources including organic LEDs) pointing to a light exit side of the lamp module are attached and electrically contacted.
  • the optical cover 4 is trough-shaped. It has a longitudinal extension so that the elongate equipment carrier 2 can be mounted therein, as explained below.
  • the optical cover 4 is preferably made in one piece from a plastic part, for example PMMA.
  • the cover can be completely transparent or there are at least areas of the optical cover which the LEDs 3, as in figure 8 shown opposite are formed transparent.
  • various elevations are provided on the inside of the optical cover 4, which serve as prism elements. For example, light scattering can be achieved by the optical elements of the cover.
  • the attachment mechanism by which the equipment carrier 2 is held in the cover 4 is described below.
  • the optical cover 4 has a plurality of spaced-apart projections 6 on two opposite edges, as for example in the sectional view according to FIG figure 5 shown.
  • the projections 6 each have an undercut which interacts with the device mount 2 in a form-fitting manner in order to hold the device mount 2 in the cover 4 .
  • the equipment carrier 2 has a plurality of openings 8 which are at the same distance from one another as the projections 6 on the optical cover 4.
  • the device carrier 2 is as in figure 1 indicated by the arrow, inserted into the optical cover 4 on the inside of the tub shape.
  • the projections 6 extend through the openings 8, as in FIG figure 3 shown.
  • the device carrier 2 is then laterally displaced in a longitudinal direction of the device carrier or the optical cover, so that the projections 6 overlap a section of the device carrier with an undercut next to the opening 8 in the device carrier. Lateral movement is in figure 4 shown with an arrow.
  • the equipment carrier is attached to the cover because the positive fit between the undercut of the projections 6 and the equipment carrier prevents the equipment carrier from being pulled off in the opposite direction perpendicular to the lateral displacement.
  • a blocking element in the form of a sheet metal tongue 10 is provided in the equipment carrier 2, as shown in figure 6 shown.
  • the sheet metal tongue 10 is bent towards the inside of the space formed between the equipment carrier 2 and the cover 4 .
  • the sheet metal tongue 10 interacts there with a stop rib 12 of the optical cover 4, so that a lateral movement of the device carrier 2 against the in figure 4 shown direction of displacement is blocked.
  • the device carrier is completely secured in the optical cover 4.
  • no further fastening elements other than the projections 6 and the blocking element in the form of the sheet metal tongue 10 are necessary for this purpose.
  • several of the projections 6 and the openings 8 are provided on both long sides of the lamp module.
  • several blocking elements in the form of spring tongues 10 can be provided.
  • the geometry and the position of the sheet metal tongue 10 and the receptacle of the sheet metal tongue in the optical cover 4 are designed in such a way that the different length expansions of the materials of the equipment carrier and the optical cover caused by temperature fluctuations do not pose a problem.
  • a sufficient distance is provided between the sheet metal tongue 10 and the stop 12 or between the projections 6 and the edges of the openings 8 in the lamp module, so that no stresses arise when the equipment carrier made of sheet metal expands compared to the optical cover made of plastic .
  • the equipment carrier does not necessarily have to have a longitudinal extension.
  • the same construction is also possible for a circular device carrier, which is fixed in a circular cover in the same way as described above, whereby instead of a longitudinal displacement, as in figure 4 shown, in which the circular gear tray rotates around the axis of symmetry of the lighting module.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

Die vorliegende Erfindung betrifft ein Leuchtenmodul und insbesondere die Montage und Befestigung eines Geräteträgers in einer optischen Abdeckung des Leuchtenmoduls.The present invention relates to a lighting module and in particular to the assembly and attachment of a device mount in an optical cover of the lighting module.

Geräteträger aus Blech sind im Stand der Technik insbesondere bei Leuchten mit LEDs als Leuchtmittel gebräuchlich. Die Geräteträger werden in eine optische Abdeckung oder in eine Gehäusewanne der Leuchte eingesetzt. Hierzu sind verschiedene Montagemöglichkeiten bekannt. Beispielsweise kann der Geräteträger einfach angeschraubt werden. Dies ist in der Massenfertigung jedoch aufwändig. Einfacher ist das Anbringen eines Geräteträgers mittels Sprengringen auf Kunststoffdomen der Abdeckung oder des Gehäuses. Allerdings ist auch dazu eine separate Zuführung der Sprengringe in der Serienherstellung notwendig.Device mounts made of sheet metal are common in the prior art, particularly in the case of lights with LEDs as light sources. The gear trays are inserted in an optical cover or in a housing trough of the light. Various mounting options are known for this. For example, the equipment carrier can simply be screwed on. However, this is expensive in mass production. It is easier to attach a device carrier using snap rings on the plastic domes of the cover or the housing. However, this also requires separate feeding of the snap rings in series production.

Noch einfacher ist die Montage des Geräteträgers auf dem LED-Modul durch Schnapphaken. Allerdings hat diese Ausführungsform den Nachteil, dass sie werkzeuglos auch wieder demontiert werden kann. Dadurch ist kein ENEC-Zertifikat durch VDE möglich.It is even easier to mount the gear tray on the LED module using snap hooks. However, this embodiment has the disadvantage that it can also be dismantled again without tools. This means that an ENEC certificate from VDE is not possible.

Ein anderer Ansatz sieht vor, die Leuchten als sogenannte "Sealed for Life"-Leuchten zu bilden, d.h. der Geräteträger kann nicht mehr zerstörungsfrei von der optischen Abdeckung abgenommen werden. Bei diesem Konzept ist jedoch ein Nachrüsten von Komponenten oder ein Austausch von defekten Komponenten auf dem Geräteträger nicht mehr möglich.Another approach envisages designing the lights as so-called "sealed for life" lights, ie the device mount can no longer be removed from the optical cover without destroying it. With this concept, however, it is no longer possible to retrofit components or replace defective components on the equipment carrier.

US 2013/294091 A1 offenbart ein Leuchtenmodul gemäß dem Oberbegriff des Anspruchs 1. Weitere ähnliche Leuchten sind auch in JP 2013 251141 A , KR 2017 0003837 U , DE 202 11 687 U1 , DE 20 2004 016573 U1 und US 2017/009946 A1 offenbart. U.S. 2013/294091 A1 discloses a lamp module according to the preamble of claim 1. Other similar lamps are also in JP 2013 251141A , KR 2017 0003837 U , DE 202 11 687 U1 , DE 20 2004 016573 U1 and U.S. 2017/009946 A1 disclosed.

Aufgabe der vorliegenden Erfindung ist es daher, ein Leuchtenmodul bereitzustellen, welches einfach zu montieren ist, einen ausreichenden Berührungsschutz der elektrischen Komponenten darstellen und außerdem die Möglichkeit bieten, die optische Abdeckung zu ersetzen, falls diese defekt ist. Dabei soll eine werkzeuglose Demontage des Geräteträgers verhindert werden, um die einschlägige DIN-Norm (DIN EN60698 4.3.0) zu erfüllen.It is therefore the object of the present invention to provide a lighting module which is easy to install, provides adequate protection against accidental contact with the electrical components and also offers the option of replacing the optical cover if it is defective. A tool-free dismantling of the device carrier should be prevented in order to meet the relevant DIN standard (DIN EN60698 4.3.0).

Gelöst wird die Aufgabe durch ein Leuchtenmodul nach Anspruch 1.The problem is solved by a lighting module according to claim 1.

Eine Besonderheit des Leuchtenmoduls der vorliegenden Erfindung besteht in dem Befestigungskonzept zwischen der optischen Abdeckung und dem Geräteträger. Die Abdeckung besitzt Vorsprünge mit Hinterschneidungen, die jedoch nicht flexibel zu sein brauchen. Die Vorsprünge werden durch Öffnungen im Geräteträger gesteckt und der Geräteträger wird durch seitliches Verlagern in den Hinterschneidungen gesichert. Dieses Konzept ist einfach auszuführen und kann ferner durch ein weiteres Blockierelement so ausgestaltet sein, dass es nicht mehr werkzeuglos demontiert werden kann. Erfindungsgemäß sind für die Befestigung des Geräteträgers der optischen Abdeckung keine weiteren Befestigungselemente vorhanden außer den Vorsprüngen und ggf. dem Blockierelement.A special feature of the lighting module of the present invention is the fastening concept between the optical cover and the device mount. The cover has projections with undercuts, but these need not be flexible. The projections are inserted through openings in the device carrier and the device carrier is secured by lateral displacement in the undercuts. This concept is easy to implement and can also be designed with a further blocking element in such a way that it can no longer be dismantled without tools. According to the invention, there are no further fastening elements for fastening the equipment carrier of the optical cover, apart from the projections and possibly the blocking element.

Gemäß einer bevorzugten Ausführungsform erfolgt die seitliche Verlagerung in Längsrichtung einer Längserstreckung des Geräteträgers oder in Tangentialrichtung eines Kreisumfangs des Geräteträgers. Die Verlagerung in Längsrichtung mit einem sich längs erstreckenden Geräteträger hat den Vorteil, dass unterschiedliche thermische Ausdehnungen zwischen dem Geräteträger, der vorzugsweise aus Metall hergestellt ist, und der optischen Abdeckung, die vorzugsweise aus Kunststoff hergestellt ist, ausgeglichen werden können. Dazu kann der Formschluss zwischen den Vorsprüngen und den Öffnungen mit einer ausreichenden Toleranz versehen sein, so dass sich der Geräteträger gegenüber der optischen Abdeckung geringfügig verschieben kann, ohne die Halterung zu beeinträchtigen. Für kleinere Leuchtenmodule ist jedoch auch eine kreisförmige Geometrie möglich. In diesem Fall ist die Verlagerung des Geräteträgers gegenüber der optischen Abdeckung eine Drehbewegung des Geräteträgers um eine Achse, welche durch die Kreissymmetrie der Vorsprünge an der optischen Abdeckung bzw. der Öffnungen im Geräteträger definiert ist.According to a preferred embodiment, the lateral displacement takes place in the longitudinal direction of a longitudinal extent of the device carrier or in the tangential direction of a circumference of the device carrier. The shift in the longitudinal direction with a device carrier extending longitudinally has the advantage that different thermal expansions between the device carrier, which is preferably made of metal, and the optical cover, which is preferably made of plastic, can be compensated. For this purpose, the positive fit between the projections and the openings can be provided with a sufficient tolerance, so that the equipment carrier can move slightly in relation to the optical cover without impairing the holder. However, a circular geometry is also possible for smaller lamp modules. In this case, the displacement of the device carrier relative to the optical cover is a rotational movement of the device carrier about an axis which is defined by the circular symmetry of the projections on the optical cover or the openings in the device carrier.

Gemäß einer bevorzugten Ausführungsform ist der Geräteträger aus einem Metallblech durch Rollen und/oder Stanzen gebildet. Das Herstellungsverfahren ist besonders einfach und kann sogar mit vorlackierten Blechen erfolgen. Gemäß einer Ausführungsform kann der Geräteträger für die darauf angeordneten LEDs auch als Reflektor dienen. Es ist daher ein Verfahren bevorzugt, bei welchem der Geräteträger aus einem mit einem reflektierenden Material vorlackierten Blech gebildet wird.According to a preferred embodiment, the equipment carrier is formed from sheet metal by rolling and/or stamping. The manufacturing process is particularly simple and can even be done with pre-painted sheets. According to one embodiment, the equipment carrier can also serve as a reflector for the LEDs arranged on it. A method is therefore preferred in which the equipment carrier is formed from sheet metal prepainted with a reflective material.

Erfindungsgemäß ist der Geräteträger nach der seitlichen Verlagerung durch ein Blockierelement gegen Bewegung in eine der Verlagerung entgegengesetzte Richtung gesichert. Das Blockierelement verhindert, dass der Geräteträger händisch von den Vorsprüngen der optischen Abdeckung wieder abgerückt werden kann. Vorzugsweise ist das Blockierelment so ausgebildet, dass es werkzeuglos nicht demontiert werden kann, um die einschlägigen Vorschriften für eine ENEC-Zertifizierung zu ermöglichen. Das Blockierelement ist vorzugsweise integral mit dem Geräteträger verbunden. Erfindungsgemäß weist der Geräteträger eine Blechzunge auf, welche nach der Verlagerung des Geräteträgers gegenüber der Abdeckung umbiegbar ist, um einen Anschlag gegenüber der Abdeckung zu bilden, so dass eine Bewegung des Geräteträgers in einer Richtung entgegen der Richtung der seitlichen Verlagerung blockiert ist. Die Blechzunge lässt sich mit dem Geräteträger integral in einem Biegestanzprozess herstellen, wobei die Blechzunge zunächst nur frei gestanzt wird und erst nach erfolgter Montage des Geräteträgers in der optischen Abdeckung umgebogen wird.According to the invention, the device carrier is after the lateral displacement by a blocking element against movement in a secured in the opposite direction to the shift. The blocking element prevents the equipment carrier from being able to be manually moved away from the projections of the optical cover. The blocking element is preferably designed in such a way that it cannot be dismantled without tools in order to enable the relevant regulations for ENEC certification. The blocking element is preferably integrally connected to the equipment carrier. According to the invention, the device carrier has a sheet metal tongue which can be bent over the cover after the device carrier has been displaced in order to form a stop relative to the cover, so that movement of the device carrier in a direction opposite to the direction of lateral displacement is blocked. The sheet metal tongue can be produced integrally with the device carrier in a bending stamping process, the sheet metal tongue being initially only freely punched and only being bent over after the device carrier has been installed in the optical cover.

Gemäß einer bevorzugten Ausführungsform ist die optische Abdeckung aus einem Kunststoff, insbesondere PMMA, gebildet ist, und die Vorsprünge sind integral mit der optischen Abdeckung gebildet. Da die Vorsprünge erfindungsgemäß nicht flexibel sind, können sie einfach mit dem Material der Abdeckung integral ausgebildet werden, wenn die Abdeckung z.B. im Spritzgussverfahren aus einem Kunststoff hergestellt wird.According to a preferred embodiment, the optical cover is made of a plastic, in particular PMMA, and the projections are formed integrally with the optical cover. Since the projections according to the invention are not flexible, they can easily be formed integrally with the material of the cover if the cover is made of a plastic, for example by injection molding.

Gemäß einer bevorzugten Ausführungsform sind die LEDs und spannungsführende Teile auf dem Geräteträger durch die Abdeckung im montierten Zustand soweit verdeckt, dass ein Berührschutz gebildet ist. Beispielsweise kann die Abdeckung mit dem Geräteträger so verbunden sein, dass keinerlei Spalte gebildet sind, durch die ein länglicher Gegenstand mit einem Durchmesser von 3 mm oder mehr eingeführt werden kann. Dadurch kann verhindert werden, dass bei einer unsachgemäßen Reparaturarbeit ein Schraubendreher aus metallischem Material mit spannungsführenden Teilen oder mit LEDs in Kontakt gerät.According to a preferred embodiment, the LEDs and live parts on the equipment rack are covered by the cover in the installed state to such an extent that protection against accidental contact is formed. For example, the cover connected to the equipment carrier in such a way that there are no gaps through which an elongate object with a diameter of 3 mm or more can be inserted. This can prevent in case of improper Repair work a screwdriver made of metallic material comes into contact with live parts or with LEDs.

Weitere Vorteile und Merkmale der vorliegenden Erfindung werden aus der nachfolgenden Beschreibung einer bevorzugten Ausführungsform deutlich, die in Verbindung mit den Figuren beschrieben wird. In den Figuren ist Folgendes dargestellt:

Figur 1
zeigt eine Seitenansicht auf eine optische Abdeckung und einen Geräteträger eines Leuchtenmoduls vor dem Zusammenbau.
Figur 2
zeigt eine perspektivische Ansicht des Leuchtenmoduls nach Figur 1 in zusammengebautem Zustand.
Figur 3
zeigt eine perspektivische Schnittansicht des Leuchtenmoduls während des Zusammenbaus.
Figur 4
zeigt eine perspektivische Schnittansicht des Leuchtenmoduls nach dem Zusammenbau.
Figur 5
zeigt eine Schnittansicht durch das Leuchtenmodul.
Figur 6
zeigt einen Abschnitt des Geräteträgers des Leuchtenmoduls.
Figur 7
zeigt eine perspektivische Schnittansicht durch das Leuchtenmodul im Bereich des in Figur 6 dargestellten Abschnitts.
Figur 8
zeigt eine perspektivische Ansicht des Leuchtenmoduls aus einer Perspektive auf die der Lichtaustrittsseite des Moduls zugewandten Seite des Geräteträgers.
Further advantages and features of the present invention will become clear from the following description of a preferred embodiment, which is described in connection with the figures. The figures show the following:
figure 1
shows a side view of an optical cover and a device mount of a lighting module before assembly.
figure 2
shows a perspective view of the lamp module figure 1 in assembled condition.
figure 3
shows a perspective sectional view of the lamp module during assembly.
figure 4
shows a perspective sectional view of the lamp module after assembly.
figure 5
shows a sectional view through the lamp module.
figure 6
shows a section of the gear tray of the lighting module.
figure 7
shows a perspective sectional view through the lighting module in the area of in figure 6 shown section.
figure 8
shows a perspective view of the lighting module from a perspective of the light exit side of the module facing side of the device carrier.

Bezug nehmend auf die Figuren 1 bis 8 wird eine bevorzugte Ausführungsform eines Leuchtenmoduls beschrieben. Das Leuchtenmodul besteht im Wesentlichen aus zwei Elementen, einem Geräteträger 2 und einer optischen Abdeckung 4. Der Geräteträger 2 ist aus einem vorlackierten (vorzugsweise bandlackierten) Blech durch Rollen und Ausstanzen gebildet. Das Blech weist einen ebenen Mittelabschnitt auf, auf dem zu einer Lichtaustrittsseite des Leuchtenmoduls weisende LEDs 3 (lichtemittierende Dioden, worunter jede Form von Halbleiterlichtquellen einschließlich organischer LEDs verstanden werden) angebracht und elektrisch kontaktiert sind.Referring to the Figures 1 to 8 a preferred embodiment of a lighting module is described. The lighting module essentially consists of two elements, a device mount 2 and an optical cover 4. The device mount 2 is formed from a pre-painted (preferably coil-painted) sheet metal by rolling and punching. The metal sheet has a flat central section on which LEDs 3 (light-emitting diodes, meaning any form of semiconductor light sources including organic LEDs) pointing to a light exit side of the lamp module are attached and electrically contacted.

Die optische Abdeckung 4 ist wannenförmig ausgebildet. Sie weist eine Längserstreckung, so dass der längliche Geräteträger 2 darin montiert werden kann, wie nachfolgend erläutert. Die optische Abdeckung 4 ist vorzugsweise einstückig aus einem Kunststoffteil, z.B. PMMA, hergestellt. Die Abdeckung kann vollständig transparent ausgebildet sein oder es sind wenigstens Bereiche der optischen Abdeckung, welche den LEDs 3, wie in Figur 8 dargestellt, gegenüberliegend sind, transparent ausgebildet. Gemäß der dargestellten Ausführungsform sind innenseitig auf der optischen Abdeckung 4 diverse Erhebungen vorgesehen, die als Prismenelemente dienen. Beispielsweise kann durch die optischen Elemente der Abdeckung eine Lichtstreuung erzielt werden.The optical cover 4 is trough-shaped. It has a longitudinal extension so that the elongate equipment carrier 2 can be mounted therein, as explained below. The optical cover 4 is preferably made in one piece from a plastic part, for example PMMA. The cover can be completely transparent or there are at least areas of the optical cover which the LEDs 3, as in figure 8 shown opposite are formed transparent. According to the embodiment shown, various elevations are provided on the inside of the optical cover 4, which serve as prism elements. For example, light scattering can be achieved by the optical elements of the cover.

Nachfolgend wird beschrieben, durch welchen Befestigungsmechanismus der Geräteträger 2 in der Abdeckung 4 gehalten wird.The attachment mechanism by which the equipment carrier 2 is held in the cover 4 is described below.

Die optische Abdeckung 4 weist an zwei gegenüberliegenden Rändern mehrere beabstandete Vorsprünge 6 auf, wie beispielsweise in der Schnittansicht nach Figur 5 dargestellt. Die Vorsprünge 6 weisen jeweils eine Hinterschneidung auf, welche formschlüssig mit dem Geräteträger 2 zusammenwirkt, um den Geräteträger 2 in der Abdeckung 4 zu halten.The optical cover 4 has a plurality of spaced-apart projections 6 on two opposite edges, as for example in the sectional view according to FIG figure 5 shown. The projections 6 each have an undercut which interacts with the device mount 2 in a form-fitting manner in order to hold the device mount 2 in the cover 4 .

Der Geräteträger 2 weist mehrere Öffnungen 8 auf, die sich im gleichen Abstand zueinander befinden, wie die Vorsprünge 6 auf der optischen Abdeckung 4.The equipment carrier 2 has a plurality of openings 8 which are at the same distance from one another as the projections 6 on the optical cover 4.

Der Geräteträger 2 wird wie in Figur 1 durch den Pfeil angedeutet, in die optische Abdeckung 4 auf der Innenseite der Wannenform eingesetzt. Dabei erstrecken sich die Vorsprünge 6 durch die Öffnungen 8, wie in Figur 3 dargestellt. Anschließend wird der Geräteträger 2 in einer Längsrichtung des Geräteträgers bzw. der optischen Abdeckung seitlich verschoben, so dass die Vorsprünge 6 mit einer Hinterschneidung einen Abschnitt des Geräteträgers neben der Öffnung 8 im Geräteträger übergreifen. Die seitliche Bewegung ist in Figur 4 mit einem Pfeil dargestellt. In diesem Zustand ist der Geräteträger an der Abdeckung befestigt, weil der Formschluss zwischen der Hinterschneidung der Vorsprünge 6 und dem Geräteträger ein Abziehen des Geräteträgers entgegen der Richtung senkrecht zu der seitlichen Verschiebung verhindert.The device carrier 2 is as in figure 1 indicated by the arrow, inserted into the optical cover 4 on the inside of the tub shape. The projections 6 extend through the openings 8, as in FIG figure 3 shown. The device carrier 2 is then laterally displaced in a longitudinal direction of the device carrier or the optical cover, so that the projections 6 overlap a section of the device carrier with an undercut next to the opening 8 in the device carrier. Lateral movement is in figure 4 shown with an arrow. In this state, the equipment carrier is attached to the cover because the positive fit between the undercut of the projections 6 and the equipment carrier prevents the equipment carrier from being pulled off in the opposite direction perpendicular to the lateral displacement.

Anschließend kann der Geräteträger in der Abdeckung weiter blockiert werden, um auch ein seitliches Zurückschieben des Geräteträgers 2 entgegen der in Figur 4 gezeigten Bewegungsrichtung zu verhindern. Dazu ist ein Blockierelement in Form einer Blechzunge 10 im Geräteträger 2 vorgesehen, wie in Figur 6 dargestellt. Die Blechzunge 10 wird in Richtung zur Innenseite zwischen dem Geräteträger 2 und der Abdeckung 4 gebildeten Raums umgebogen. Die Blechzunge 10 wirkt dort mit einer Anschlagsrippe 12 der optischen Abdeckung 4 zusammen, so dass eine seitliche Bewegung des Geräteträgers 2 entgegen der in Figur 4 dargestellten Verlagerungsrichtung blockiert wird. In diesem Zustand ist der Geräteträger vollständig in der optischen Abdeckung 4 gesichert. Hierzu sind erfindungsgemäß keine weiteren Befestigungselemente außer den Vorsprüngen 6 und dem Blockierelement in Form der Blechzunge 10 notwendig. Dabei ist zu verstehen, dass mehrere der Vorsprünge 6 bzw. der Öffnungen 8 an beiden Längsseiten des Leuchtenmoduls vorgesehen sind. Vorzugsweise können auch mehrere Blockierelemente in Form der Federzungen 10 vorgesehen sein.The equipment carrier can then be further blocked in the cover to prevent the device from being pushed back to the side Device carrier 2 contrary to in figure 4 to prevent the direction of movement shown. For this purpose, a blocking element in the form of a sheet metal tongue 10 is provided in the equipment carrier 2, as shown in figure 6 shown. The sheet metal tongue 10 is bent towards the inside of the space formed between the equipment carrier 2 and the cover 4 . The sheet metal tongue 10 interacts there with a stop rib 12 of the optical cover 4, so that a lateral movement of the device carrier 2 against the in figure 4 shown direction of displacement is blocked. In this state, the device carrier is completely secured in the optical cover 4. According to the invention, no further fastening elements other than the projections 6 and the blocking element in the form of the sheet metal tongue 10 are necessary for this purpose. It should be understood that several of the projections 6 and the openings 8 are provided on both long sides of the lamp module. Preferably, several blocking elements in the form of spring tongues 10 can be provided.

Die Geometrie und die Position der Blechzunge 10, sowie die Aufnahme der Blechzunge in der optischen Abdeckung 4 sind so ausgelegt, dass die durch Temperaturschwankungen bedingten unterschiedlichen Längenausdehnungen der Materialien des Geräteträgers und der optischen Abdeckung kein Problem darstellen. Hierzu ist ein ausreichender Abstand zwischen der Blechzunge 10 und dem Anschlag 12 bzw. zwischen den Vorsprüngen 6 und den Rändern der Öffnungen 8 in dem Leuchtenmodul vorgesehen, so dass sich beim Ausdehnen des aus Blech gebildeten Geräteträgers gegenüber der aus Kunststoff gebildeten optischen Abdeckung keine Spannungen ergeben.The geometry and the position of the sheet metal tongue 10 and the receptacle of the sheet metal tongue in the optical cover 4 are designed in such a way that the different length expansions of the materials of the equipment carrier and the optical cover caused by temperature fluctuations do not pose a problem. For this purpose, a sufficient distance is provided between the sheet metal tongue 10 and the stop 12 or between the projections 6 and the edges of the openings 8 in the lamp module, so that no stresses arise when the equipment carrier made of sheet metal expands compared to the optical cover made of plastic .

Zahlreiche Modifikationen der vorhergehenden beschriebenen bevorzugten Ausführungsformen sind im Rahmen der Erfindung, welche durch die Ansprüche definiert ist, möglich. Beispielsweise muss der Geräteträger nicht zwangsläufig eine Längserstreckung aufweisen. Die gleiche Konstruktion ist auch für einen kreisrunden Geräteträger möglich, der in einer kreisrunden Abdeckung in sinngemäß der gleichen Weise wie vorhergehend beschrieben befestigt ist, wobei anstelle einer Längsverlagerung, wie in Figur 4 dargestellt, bei dem kreisrunden Geräteträger eine Drehbewegung um die Symmetrieachse des Leuchtenmoduls erfolgt.Numerous modifications of the preferred embodiments described above are within the scope of the invention, which is defined by the claims is possible. For example, the equipment carrier does not necessarily have to have a longitudinal extension. The same construction is also possible for a circular device carrier, which is fixed in a circular cover in the same way as described above, whereby instead of a longitudinal displacement, as in figure 4 shown, in which the circular gear tray rotates around the axis of symmetry of the lighting module.

BEZUGSZEICHENLISTEREFERENCE LIST

22
Geräteträgerequipment carrier
33
LEDLEDs
44
optische Abdeckungoptical cover
66
Vorsprung mit HinterschneidungProjection with undercut
88th
Öffnungopening
1010
Blechzunge als BlockierelementSheet metal tongue as blocking element
1212
Rippe als Anschlagrib as a stop

Claims (5)

  1. A light module comprising an optical cover (4) and a device carrier (2), the device carrier having lighting means in the form of LEDs (3) which, in a mounted state of the device carrier (2), emit light through a transparent portion of the optical cover (4),
    wherein the optical cover (4) has projections (6) with an undercut which engage in openings (8) of the device carrier (2) and, by a lateral displacement of the device carrier with respect to the optical cover (4), secure the device carrier (2) in the mounted state, in that in each case an overhang of the projections (6) laterally of the respective opening (8) engages over a portion of the device carrier (2), in order to block an unbridging of the device carrier from the cover in a direction perpendicular to the direction of the lateral displacement,
    wherein the device carrier (2), after the lateral displacement, is secured against a movement in the direction opposite to the displacement by a blocking element (10), characterized in that
    the blocking element is formed by a sheet metal tongue (10) of the device carrier (2), which, after the displacement of the device carrier with respect to the optical cover (4), is bendable in order to form a stop with respect to the cover, so that a movement of the device carrier (2) in a direction opposite to the direction of the lateral displacement is blocked.
  2. A light module according to claim 1, wherein the lateral displacement takes place in the longitudinal direction of a longitudinal extension of the device carrier (2) or in the tangential direction of a circular circumference of the device carrier.
  3. A light module according to any one of the preceding claims, wherein the device carrier (2) is formed from a metal sheet by rolling and/or punching.
  4. A light module according to any one of the preceding claims, wherein the optical cover (4) is formed from a plastic, in particular PMMA, and the projections (6) are formed integrally with the cover.
  5. A light module according to any one of the preceding claims, wherein the LEDs (3) and live parts on the device carrier are covered by the cover in the mounted state to such an extent that a contact protection is formed.
EP20177138.3A 2019-05-29 2020-05-28 Attachment of a support device in an optical cover without additional components Active EP3745021B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019114547.3A DE102019114547A1 (en) 2019-05-29 2019-05-29 Attachment of a device carrier in an optical cover without additional components

Publications (2)

Publication Number Publication Date
EP3745021A1 EP3745021A1 (en) 2020-12-02
EP3745021B1 true EP3745021B1 (en) 2022-02-23

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EP (1) EP3745021B1 (en)
DE (1) DE102019114547A1 (en)
PL (1) PL3745021T3 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20211687U1 (en) * 2002-07-10 2002-09-26 Rsl Rodust & Sohn Lichttechnik Luminaire with holding device
DE202004016573U1 (en) * 2004-10-27 2005-12-15 Struppler, Andreas Light fixture for use in e.g. plate, has illuminant holder that is attached in plate, and illuminants having translucent and identical covers that are fixed at plate using connecting unit
DE102011076300A1 (en) * 2011-05-23 2012-11-29 Osram Ag Illuminating device i.e. illuminating module, has cover covering electronic components and including recess and projections at edge of recess, where recess laterally surrounds LEDs on carrier, and edge includes step with lower riser
US20130294091A1 (en) * 2012-05-07 2013-11-07 Habitex Corporation Lamp holder assembly having a removable shade unit
JP6044758B2 (en) * 2012-05-31 2016-12-14 東芝ライテック株式会社 Light source unit and lighting fixture
JP6575900B2 (en) * 2015-07-06 2019-09-18 パナソニックＩｐマネジメント株式会社 Light source unit and lighting fixture
KR200485767Y1 (en) * 2016-04-29 2018-02-20 허영희 Entered into a one-touch frame type ceiling luminaires
DE102017105722A1 (en) * 2017-03-16 2018-09-20 Siteco Beleuchtungstechnik Gmbh LED luminaire module with flat carrier for LEDs

Also Published As

Publication number Publication date
DE102019114547A1 (en) 2020-12-03
EP3745021A1 (en) 2020-12-02
PL3745021T3 (en) 2023-06-12

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