EP3336419B1 - Lampe avec élément de positionnement pouvant supporter la platine et les composants optiques - Google Patents

Lampe avec élément de positionnement pouvant supporter la platine et les composants optiques Download PDF

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Publication number
EP3336419B1
EP3336419B1 EP17207554.1A EP17207554A EP3336419B1 EP 3336419 B1 EP3336419 B1 EP 3336419B1 EP 17207554 A EP17207554 A EP 17207554A EP 3336419 B1 EP3336419 B1 EP 3336419B1
Authority
EP
European Patent Office
Prior art keywords
positioning element
optical component
board
circuit board
positioning
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.)
Active
Application number
EP17207554.1A
Other languages
German (de)
English (en)
Other versions
EP3336419A1 (fr
Inventor
Bernhard Kleemann
Simon Koebinger
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.)
Siteco GmbH
Original Assignee
Osram GmbH
Siteco Beleuchtungstechnik GmbH
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 Osram GmbH, Siteco Beleuchtungstechnik GmbH filed Critical Osram GmbH
Publication of EP3336419A1 publication Critical patent/EP3336419A1/fr
Application granted granted Critical
Publication of EP3336419B1 publication Critical patent/EP3336419B1/fr
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
    • F21V17/005—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
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional 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 present invention relates to a luminaire with LEDs arranged on a circuit board (light emitting diodes, which is understood here to mean any type of semiconductor light source, including organic LEDs) and optical components, which are arranged in front of the LEDs.
  • a circuit board light emitting diodes, which is understood here to mean any type of semiconductor light source, including organic LEDs
  • optical components which are arranged in front of the LEDs.
  • Lights of the type described above are very common due to the low energy consumption of the special bulbs.
  • this type of light sources require a particularly precise arrangement of the optical components.
  • the LEDs act as almost punctiform light sources, so that even slight tolerance deviations in the arrangement of optical components for influencing the light can produce undesirable effects in the light distribution. This is less critical in conventional bulbs that emit light over a larger area.
  • a reflector assembly with a body known are arranged on the LED circuit boards. Further, a reflector element is provided, which is fastened by means of a connecting element in a recess of the LED circuit board.
  • FIG DE 10 2010 041 471 A1 Another example of an LED luminaire with reflectors arranged laterally of the LEDs is shown in FIG DE 10 2010 041 471 A1 described.
  • a transparent optical element for covering the LEDs and the reflectors of the luminaire is also provided.
  • EP 2 306 068 A1 discloses a lighting device in which a lens element is aligned with an LED board by means of projections.
  • the lens element and the circuit board are arranged in a rail.
  • DE 10 2007 050 893 A1 discloses a method for positioning and mounting an LED package on a support body.
  • a positioning body is provided, which aligns the LED assembly on the support body.
  • the positioning body can also remain permanently on the device, in which case the positioning body has reflectors through which LEDs pass.
  • Object of the present invention is to provide a luminaire of the type mentioned, in which a plurality of optical components as simple as possible and yet can be attached precisely to the LEDs in the lamp.
  • the object is achieved by a luminaire according to claim 1.
  • a special feature of the lamp according to the invention is the fact that a positioning element of the lamp both the Board and both optical components, namely a reflective optical component and a transparent optical component positioned against each other and mechanically holds simultaneously on the support rail.
  • the assembly of the board and the optical components would also be possible with conventional screws.
  • the components would have to be individually screwed to the support rail, which means a significant overhead and also can lead to an imprecise alignment of the optical elements to the almost point-shaped LED light sources by building tolerances.
  • a positioning element which aligns all lighting and optical components of the luminaire at the same time, the positioning of the components to each other is more precise.
  • further fastening elements may be provided in order, for example, to hold the printed circuit boards firmly to the carrier structure. But the precise alignment of the optical components to the light sources is already ensured by said at least one positioning element.
  • the positioning element has at least one, preferably two, elastically resilient hooks which engage in undercuts of the mounting rail.
  • the hooks may themselves be formed of an elastic material or hinged to the positioning element and be elastically movable by means of a spring.
  • the connection with the latching hook has the advantage that the positioning element can be mounted on the mounting rail without tools. Furthermore, it is also possible to solve the elastic hook by bending back from the mounting rail again and reuse if necessary. As a result, the luminaire can be installed at the installation site, e.g. for maintenance purposes or to replace individual components and then reinstall.
  • the undercuts can be provided as a continuous profile parallel to a longitudinal side of the contact surface, in which engage the positioning elements with the at least one hook resiliently.
  • at least two elastically resilient hooks can be provided one behind the other on the positioning element, which hooks can be latched along the continuous profile of the carrier rail. Since the profile is continuous, the positioning element can in principle be attached anywhere along the carrier rail. As a result, the LED board and the optical components can be mounted at different locations along the carrier rail of the luminaire. However, the alignment of the LED board to the optical components is ensured by the positioning element.
  • the lamp has a plurality of said positioning elements, wherein at least two of the positioning elements are arranged on two opposite side of the contact surface on the support rail and overlap opposite edges of the board.
  • the positioning elements are arranged on two opposite side of the contact surface on the support rail and overlap opposite edges of the board.
  • the board can be provided on the longitudinal sides of the contact surface in each case a continuous profile, in which the positioning elements are mounted and overlap opposite edges of the board. This allows the board to secure securely on both sides.
  • the circuit board and the optical components it is also possible for the circuit board and the optical components to be inserted into the rail on one side of the contact surface and to be held only on the opposite side by one or more of the positioning elements.
  • the provision of positioning elements on two opposite edges of the board is advantageous for the precise alignment of the optical components with the board.
  • the positioning element has a centering element, which engages in a recess of the board.
  • the alignment of the board relative to the positioning element is achieved by a positive connection.
  • the centering element can be inserted without tools in the recess of the board.
  • the centering element may for example comprise a cylindrical pin.
  • the recess of the board may be a cylindrical bore. Alternatively, other shapes are possible.
  • the recesses may be provided on the board also directly on the edge. This is technically particularly easy to manufacture and also has the advantage that the centering of the positioning element engages only to a small extent over the edge of the board, so that the lamps arranged on the board are not affected by the positioning element.
  • the centering means is elastically connected by a hinge with the positioning element.
  • the positioning element may be made of plastic, wherein the elastic hinge is formed by a film hinge, which integrally connects the centering element with the rest of the positioning element.
  • the components are connected by a metallic spring element.
  • the use of plastic has the advantage that even when touching live parts on the board no electrical connection to the support rail formed in each case of metal arises.
  • the hinge itself has the advantage that the centering element acts elastically on the board, so that the board relative to the positioning element during assembly can be easily aligned and is held in position in the mounted state by the elastic action of the hinge.
  • the positioning element has an opening into which a pin of the reflective and / or the transparent optical component engages or engage.
  • one or both optical components can be positioned relative to the positioning element.
  • the opening is provided in the centering element, which is directly in positive engagement with the board.
  • the circuit board and the one or possibly the two optical components are aligned with each other and connected via the hinge with the rest of the positioning element, which firmly engages the rail. If, for example, thermal expansion causes the mounting rail to shift minimally relative to the board, the orientation of the optical components with respect to the board carrying the LEDs nevertheless remains ensured. Therefore, it is advantageous that the opening is provided in the centering element itself. In alternative embodiments, however, may be provided at the opening for inserting a pin of the one or both optical components but also at a different location of the positioning element, for example on the directly connected to the mounting rail part.
  • the positioning element has a stop which presses against a side of the board opposite the contact surface.
  • the stop may be provided on the centering itself, so that presses by the elastic effect of the hinge, the centering with the contact surface on the board to hold the board to the contact surface.
  • the positioning element has one or more additional elastic resilient hooks which hold the transparent and / or the reflective optical component.
  • the reflective optical component can engage in openings of the positioning element by means of pins, while the transparent optical component is mounted above the reflective optical component on the additional latching hook of the positioning element.
  • the optical transparent component can also prevent the pins of the reflective optical component from slipping out of the openings of the positioning elements.
  • the two optical components can secure against each other, wherein only the exterior of the two components is fixed by the latching hooks on the positioning element. The interior of the two components is secured only by a positive connection to the positioning element and secured against slipping out through the exterior of the two components.
  • the transparent optical component is arranged behind the reflective optical component in a light path of the light emitted by the LEDs.
  • the transparent optical component simultaneously acts as a protection for the reflective optical component and the LEDs on the board.
  • the transparent optical component may have outwardly smooth surfaces, so that it is easy to clean. The more sensitive surfaces of the reflective optical component are protected from contamination by dust. Furthermore, access to the live parts of the LEDs or the circuit board is blocked, so that the necessary reliability of the luminaire can already be ensured by the arrangement of the optical components with respect to the board.
  • the positioning element is made of plastic.
  • Plastic has the advantage that even with a contact with the live parts of the board or the LEDs no electrically conductive connection to the mounting rail is formed.
  • the support rail is preferably formed from an aluminum profile.
  • Aluminum has the advantage that, in addition to the mechanical support function, it also serves as a heat sink for the heat-generating LEDs. It is advantageous that one side of the board is in contact with the contact surface, whereby the heat transfer between the LEDs and acting as a heat sink support rail is favored. Voltage-carrying parts are preferably provided only on the side opposite the contact surface of the board. The positioning of an insulating material prevents accidental electrical contact with the rail is formed.
  • a positioning element 2 as in FIG. 1 shown comprises an elongated member, which is preferably formed entirely of plastic.
  • two elastically resilient hooks 4 are provided, which serve to lock the component in a support rail of a lamp.
  • a web 6 is provided which corresponds approximately to the shape of an undercut in a mounting rail profile of a lamp.
  • the hooks 4 are located on both sides of the web 6 and can be deflected elastically downwards relative to the web 6. Referring to the FIG. 2 is shown as the positioning element 2 is engaged in a mounting rail 8 a lamp.
  • a hook 4 engages in an undercut of a profile of the support rail 8 and is by an elastic force, the hook 4 in the figure according to FIG. 2 pushes upwards, held on the profile of the support rail 8.
  • the support rail 8 is formed symmetrically, as shown completely in FIGS. 4 and 5, and two positioning elements 2 are fastened on two opposite sides of the support rails 8 in the manner described.
  • the support rail 8 is preferably formed of aluminum, in particular of an aluminum extruded profile.
  • the wall thickness is relatively massive compared to the components mounted thereon. As a result, on the one hand, the necessary stability of the luminaire is achieved.
  • the support rail also serves as a heat sink for the lamps arranged thereon.
  • the support rail 8 has in the region between the positioning elements 2 a surface which serves as a contact surface 10 for a circuit board 12.
  • the board 12 carries on the top, i. on the side opposite the contact surface 10 side, LEDs 16, which are provided in the embodiment shown in a row in the middle of the lamp.
  • the circuit board 12 has an approximately circular cutout on one longitudinal side, in which a centering element 18 of the positioning element 2 engages in a form-fitting manner, as shown in FIG.
  • the centering element 18 is elastically connected via a film hinge 20 made of plastic with the rest of the positioning element 2.
  • the centering element 18 has on its outside a plurality of stops 22, which protrude beyond the edge of the cutout in the board so that they press on the top of the board 23 by the elastic force of the film hinge 20. Due to the peripheral shape of the centering element 18, the form-fitting manner to the cutout in the Board is held, the board by the positive connection in the lateral direction. By the stops 22 in conjunction with the elastic force of the film hinge, the board 12 is further pressed onto the contact surface 10 of the support rail.
  • the contact pressure which applies the centering element 18 with the stops 22 on the board 12 is relatively low. Therefore, additional fastening means are used in the lamp (not shown in the figures) to hold the boards 12 to the support rail.
  • the force which the positioning elements 2 apply to the board 12, however, is sufficient for pre-assembly of the board already.
  • the position of the board is fixed to the mounting rail, so that other components can be mounted before or after the board is finally fixed by additional fasteners to the mounting rail.
  • the centering element 18 has an opening 24, in the illustrated embodiment in the form of a cylindrical bore. This opening 24 serves to position a first optical component over the LEDs 16. Referring to the FIG. 4 It is shown how a reflective optical device 30 is positioned over the board 12.
  • the reflective optical component 30, which has on the LEDs 16 facing inner surfaces reflection surfaces in the form of lamellae, with two pins 32 corresponding to the direction of the arrow in FIG. 4 inserted into the openings 24. Due to the positive connection between the pins 32 and the openings 24, the position of the reflective optical component 30 relative to the positioning element 2 and, accordingly, relative to the circuit board 12 is fixed.
  • the opening 24, in which the pin 32 engages is provided on the centering element 18 itself, which is directly in positive engagement with the board 10. Even if, for example, thermal expansion of the board 12 slightly displaced relative to the support rail 2, the positioning of the reflective optical component 30 is still maintained relative to the LEDs 16. This would not be the case if the reflective optical component 30 were mounted directly on the mounting rail or on a region of the positioning element outside the circuit board.
  • FIG. 5 shows the same arrangement as in FIG. 4 , wherein the pins 32 of the reflective optical component 30 are completely inserted into the openings 24.
  • a further transparent optical component 40 is fastened to the positioning element 2.
  • the transparent optical component 40 which is formed, for example, from a transparent plastic such as PMMA, has hooks 42 on the side facing the support rail, which interact with elastic hooks 26 of the positioning element 2.
  • the hook 42 and / or the hook 26 are elastically deflectable, so that the hooks slide against each other along run-on slopes and are deflected laterally outwards when the optical transparent component 40 is plugged onto the mounting rail or the positioning elements 2 already mounted therein from the outside ,
  • the FIG. 5 shows the same arrangement as in FIG. 4 , wherein the pins 32 of the reflective optical component 30 are completely inserted into the openings 24.
  • a further transparent optical component 40 is fastened to the positioning element 2.
  • the transparent optical component 40 which is formed, for example, from a transparent plastic such as PMMA, has
  • the transparent optical component above the LEDs 16 may have a lenticular section. Furthermore, laterally transparent plates are formed, which act as light guides.
  • the optically transparent component 40 closes the luminaire upwards with a closed surface. As a result, in particular the reflective surfaces of the reflective optical component 30 and the LEDs 16 and the electrical leads on the circuit board 12 are protected.
  • the optically transparent member 40 preferably has smooth surfaces on the outboard sides that are easy to clean and no longer form openings that could inadvertently access the underlying reflective or live parts of the luminaire.
  • the construction is not limited to the specific transparent and reflective optical components.
  • the optical component can also be provided without a light guide in the form of simple lenses or a lens plate.
  • the reflective component need not be formed in the form of successively arranged lamellae, but may for example comprise only reflection surfaces on two opposite sides of the LEDs.
  • the positioning element can be connected to the transparent and the reflective optical component by other mechanical devices.
  • the illustrated hooks or plug connections can also be replaced by other forms of fastening means. However, preferred are self-locking compounds that do not require separate screw members or the like.

Claims (10)

  1. Luminaire, avec
    - un rail de support (8) qui définit une surface d'appui (10) pour une platine (12),
    - une platine (12) qui repose sur la surface d'appui (10) et porte sur un côté opposé à la surface d'appui plusieurs LED (16) en tant que moyens d'éclairage du luminaire,
    - un composant optique réfléchissant et un composant optique transparent (30, 40) qui influencent une émission de lumière délivrée par les LED (16), et
    - au moins un élément de positionnement (2),
    caractérisé en ce que l'élément de positionnement (2) est agencé pour positionner les uns contre les autres et retenir mécaniquement sur le rail de support simultanément la platine (12), le composant optique réfléchissant (30) et le composant optique transparent (40).
  2. Luminaire selon la revendication 1, dans lequel l'élément de positionnement (2) comporte au moins un, de préférence deux, crochets (4) faisant ressort élastiquement qui s'encliquettent sur des contre-dépouilles du rail de support (8).
  3. Luminaire selon la revendication 2, dans lequel les contre-dépouilles sont prévues en tant que profilé continu parallèlement à un côté longitudinal de la surface d'appui (10), dans lequel l'élément de positionnement (2) engrène dans le profilé avec le au moins un crochet (4) faisant ressort élastiquement et s'étend sur un bord de la platine (12).
  4. Luminaire selon l'une des revendications précédentes, dans lequel le luminaire comporte plusieurs des éléments de positionnement (2), et au moins deux des éléments de positionnement (2) sont positionnés sur deux côtés longitudinaux opposés de la surface d'appui (10) sur le rail de support et chevauchent des bords opposés de la platine (2).
  5. Luminaire selon l'une des revendications précédentes, dans lequel l'élément de positionnement comporte un élément de centrage (18) qui engrène dans un évidement de la platine (12).
  6. Luminaire selon la revendication 5, dans lequel l'élément de centrage (18) est raccordé élastiquement à l'élément de positionnement par une charnière, de préférence une charnière-film (20).
  7. Luminaire selon la revendication 5 ou 6, dans lequel l'élément de centrage comporte une ouverture (24) dans laquelle engrène un tenon (32) du composant optique réfléchissant et/ou du composant optique transparent (30, 40)
  8. Luminaire selon l'une des revendications précédentes, dans lequel l'élément de positionnement (2) comporte une butée (22) qui presse sur un côté de la platine (12) opposé à la surface d'appui (10).
  9. Luminaire selon l'une des revendications précédentes, dans lequel l'élément de positionnement (2) comporte un ou plusieurs crochets supplémentaires faisant ressort élastiquement qui retiennent le composant optique réfléchissant et/ou le composant optique transparent (30, 40).
  10. Luminaire selon l'une des revendications précédentes, dans lequel le composant optique transparent (40) est disposé dans un chemin de lumière de la lumière délivrée par les LED derrière le composant optique réfléchissant (30).
EP17207554.1A 2016-12-15 2017-12-15 Lampe avec élément de positionnement pouvant supporter la platine et les composants optiques Active EP3336419B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016124542.9A DE102016124542A1 (de) 2016-12-15 2016-12-15 Leuchte mit Positionierungselement zum Halten von Platine und optischen Bauteilen

Publications (2)

Publication Number Publication Date
EP3336419A1 EP3336419A1 (fr) 2018-06-20
EP3336419B1 true EP3336419B1 (fr) 2019-10-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP17207554.1A Active EP3336419B1 (fr) 2016-12-15 2017-12-15 Lampe avec élément de positionnement pouvant supporter la platine et les composants optiques

Country Status (2)

Country Link
EP (1) EP3336419B1 (fr)
DE (1) DE102016124542A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2590510B (en) * 2019-12-20 2022-12-07 Thorn Lighting Ltd Longitudinal luminaire with alignment features

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007050893B4 (de) * 2007-10-24 2011-06-01 Continental Automotive Gmbh Verfahren zum Positionieren und Montieren einer LED-Baueinheit sowie Positionierkörper hierfür
JP4447644B2 (ja) * 2008-07-15 2010-04-07 シーシーエス株式会社 光照射装置
DE102010041471B4 (de) 2010-09-27 2021-02-11 Zumtobel Lighting Gmbh Leuchtmodulanordnung mit einer LED auf einer Platine
AT13039U1 (de) * 2011-07-29 2013-05-15 Tridonic Jennersdorf Gmbh Reflektoreinheit für leds, led lichtquelle, poster-box sowie verfahren zur montage der led lichtquelle
DE102012102985A1 (de) * 2012-04-05 2013-10-10 Siteco Beleuchtungstechnik Gmbh Leuchteneinsatz mit Reflektor
DE102012220977A1 (de) 2012-11-16 2014-05-22 Osram Gmbh Reflektoranordnung
DE202013010052U1 (de) * 2013-11-06 2015-02-10 Zumtobel Lighting Gmbh Anordnung zur Lichtabgabe sowie Leuchte mit einer solchen Anordnung
CH709009B1 (de) * 2013-12-18 2017-09-29 Regent Beleuchtungskörper Ag Befestigung einer Leiterplatte und einer Optik einer Leuchte.
DE202015104043U1 (de) * 2014-12-08 2016-03-09 Tridonic Gmbh & Co Kg Befestigungsbrücke zur Befestigung von LED-Modulen an Befestigungsschienen

Non-Patent Citations (1)

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Title
None *

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DE102016124542A1 (de) 2018-06-21
EP3336419A1 (fr) 2018-06-20

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