EP2185857A2 - Module lumineux - Google Patents

Module lumineux

Info

Publication number
EP2185857A2
EP2185857A2 EP08802139A EP08802139A EP2185857A2 EP 2185857 A2 EP2185857 A2 EP 2185857A2 EP 08802139 A EP08802139 A EP 08802139A EP 08802139 A EP08802139 A EP 08802139A EP 2185857 A2 EP2185857 A2 EP 2185857A2
Authority
EP
European Patent Office
Prior art keywords
light
module
light source
lighting
heat sink
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
EP08802139A
Other languages
German (de)
English (en)
Other versions
EP2185857B1 (fr
Inventor
Simon Schwalenberg
Harald Stoyan
Hubertus Breier
Klaus Burkard
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.)
Osram GmbH
Original Assignee
Osram 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 filed Critical Osram GmbH
Priority to EP13198835.4A priority Critical patent/EP2716960A3/fr
Publication of EP2185857A2 publication Critical patent/EP2185857A2/fr
Application granted granted Critical
Publication of EP2185857B1 publication Critical patent/EP2185857B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/80—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with pins or wires
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/345—Current stabilisation; Maintaining constant current
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/48—Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/10—Lighting devices or systems using a string or strip of light sources with light sources attached to loose electric cables, e.g. Christmas tree lights
    • 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]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/32—Pulse-control circuits
    • H05B45/325—Pulse-width modulation [PWM]

Definitions

  • the invention relates to a light module for a light chain and a light chain with such a light module, in particular for use in light boxes.
  • DE 10 2004 004 777 A1 discloses a deformable light chain with a plurality of light modules, on each of which at least one optical emitter is arranged and which are connected via two electrical power supply wires to form a chain.
  • the electrical power supply wires run without interruption across all modules of the chain and interconnect the modules.
  • US 6,566,824 B2 discloses a lighting device having a lighting segment comprising a plurality of lighting sections.
  • Each of the sections includes a circuit board with a semiconductor light emitter mounted thereon.
  • the sections are interconnected by board connectors which connect the boards to edges of adjacent boards in close proximity to one another.
  • the board connectors are deformable to change the orientation in response to an applied force.
  • the sections are elec trically ⁇ connected together such that the semiconductor light emitters are electrically connected in series.
  • the segment has a current regulator that regulates the current through the semiconductor light emitter.
  • the light module for a light chain has at least one light source and at least one power connection for supplying the at least one light source. Furthermore, the light module has a heat sink.
  • the light sources are arranged on a front side of a circuit board, and the heat sink is connected to a back side of the circuit board.
  • the heat sink is attached to the board by means of an adhesive.
  • the adhesive is preferably a thermally conductive adhesive and may be electrically conductive or insulating as needed.
  • the heat sink by means of a mechanical
  • TIM-Matenal Connecting element to be attached to the board, wherein preferably an intermediate layer of TIM-Matenal is disposed between the heat sink and the board.
  • the heat sink is preferably in an elongated form. forms.
  • the shape of the heat sink preferably corresponds to the board dimensions.
  • the retaining tabs then preferably start at a side edge in the region of the center of the associated longitudinal axis.
  • an elongate shape for example, an oval, a polygonal or a rectangular basic shape, or hybrids thereof, may be used, wherein the contour of the lateral edge thereof may differ locally.
  • heat sink and / or board are not limited to an elongated shape, but may be arbitrarily shaped, for. B. in round or square shape.
  • the retaining tabs can be located in any position.
  • the cooling body preferably has an arrangement of cooling projections, in particular cooling pins, for effective cooling. It is particularly preferred if the height of the retaining tabs is smaller than the height of the Kuhlvorsprunge, especially pins. Particularly preferred is a lighting module in which the retaining tabs and the Kuhlvorsprunge, in particular pins, have a height difference between about 0.05 and about 0.3 mm.
  • the heat sink is made of aluminum, in particular of aluminum with a purity of more than 95%, especially of over 98%.
  • the heat sink may consist of a material of high thermal conductivity, for. B. using copper, zinc and / or magnesium.
  • the heat sink on a patch on a plate arrangement of regularly arranged pins of the same height.
  • the heat sink is preferably surface treated to increase the thermal emissivity, e.g. B. coated or anodized.
  • the heat sink has a bright color with a high degree of light reflection.
  • the light module can one or more monochrome, z. B. wei ⁇ SSE, having light sources.
  • the light module preferably has a red light-emitting diode, a blue light-emitting diode and two green light-emitting diodes.
  • the light sources are preferably light-emitting diodes, but may also include other types of light sources such as incandescent or fluorescent lamps and so on.
  • the light module can for some or all light sources mounted on it have a common look, in particular scattering optics, z. B. a common scattering lens. However, it is particularly preferred for reducing the installation height if each light source is assigned its own scattering optics for scattering the light emitted by the respective light source. Instead of a scattering lens, any other suitable light scattering element can also be used.
  • the scattering lens is preferably broadly scattering, z. B. a so-called. ARGUS lens, so that a largely uniform light emission results even at low height.
  • a coupling-out optics can also be used.
  • a luminous module in which the circuit board or the substrate or the construction technology has a good thermal conductivity or low thermal resistance is preferred.
  • Particularly preferred is a lighting module in which the board is a metal core board.
  • the light-emitting module has a cover at least for covering the circuit board.
  • the lid has on the outside a reflectivity of more than 60% in the visible range of the light. It is preferred that the lid is formed so that he in the mounted state, the heat sink at least partially covered laterally.
  • the lid can be made of plastic or metal. It may be preferred, in particular when used in Inncht, when the lid does not hermetically seal an underlying interior of the lighting module in the mounted state.
  • electrical contacts of current-carrying parts on the board are then coated with a lacquer layer for mechanical protection and corrosion protection, in particular with a lacquer which, when applied, has a viscosity in the range of 100-3000 mPas in order to be able to distribute uniformly uniformly.
  • the luminous module has at least two electrically connected electrical connections for supplying the at least one light source. These power connections are usually powered by a single power source and represent parts of an electrically continuous power line.
  • At least one external voltage source is used whose voltage can be pulse width modulated.
  • the object is also achieved by means of a luminous chain with at least two series-connected lighting modules.
  • the associated lighting modules are connected so that a set of light sources, each comprising a light source of the lighting modules, is electrically connected in series, ie, by means of a so-called strand. It is then particularly preferred if the lighting modules are connected in such a way that a set of light sources of the same color, each comprising a light source of the lighting modules, is electrically connected in series.
  • Particular preference is given to differently colored light sources or light sources with associated optics, which can produce a white light in additive color mixing. This may be, for example, a combination of array RGB light sources, but also RRGB, RGGB, RRGGB, and so on.
  • By different colored light sources can also be achieved by suitable control a light output of the light module with variable, specifically adjustable color.
  • the lighting modules are generally preferably connected so that a power loss of a drive or driving circuit for the light sources distributed substantially uniformly on the lighting modules.
  • the light-emitting module which is suitable in particular for use in the light chain, preferably has at least one continuous light source line with at least one intermediate light source, in particular with at least one light-emitting diode.
  • continuous is understood here in particular an electrical line, which has at least one input and one output terminal on the light module, that is passed through the light module.
  • the light-emitting module furthermore has at least one continuous light source supply line for the power supply of the light source and at least one continuous driver supply line for operating at least one driver circuit for controlling the at least one light source.
  • a driver circuit feeds the at least one continuous driver supply line.
  • a luminous chain comprising such luminous modules has a plurality of above luminous modules connected to one another, with at least one luminous module, in particular a terminal luminous module, the light source supply line and the light source line being electrically connected to one another.
  • the total current of the driver (part) circuits fed via the light source supply line is thereby fed into the light sources connected in series in the light source line.
  • at least two of the lighting modules of the light chain each have at least one set of at least one light source and a driver circuit for controlling the at least one light source.
  • the driver circuits of a set of the respective lighting modules are electrically connected to each other in parallel, and the light sources of this one set ("string") of the respective lighting modules are electrically connected to each other in series.
  • the driver outputs of the driver circuits are connected to a
  • the driver circuit has an electrical resistance and / or at least one transistor and / or at least one diode. It is also advantageous if the driver circuit is a current control circuit, in particular a Stromkonstanterscaria.
  • the driver output is advantageously, but not necessarily, a current output.
  • the driver circuit is electrically connected to one of its supply inputs with a cathode side of the associated, so on the same light module, light source, as this results in a higher potential difference than in the connection with the anode side.
  • it is basically also possible to electrically connect the driver circuit to an anode side of the light source. It may alternatively be advantageous if the driver circuit for each of its supply inputs is connected to its own driver supply line.
  • each luminous module has a plurality of light sources per set, in particular light-emitting diodes with the same light spectrum, z. B. white or the same color LED, especially two green LEDs.
  • each luminous module has several sets of at least one light source and a driver circuit for supplying power to the at least one light source. These interconnected sets correspond to the strands.
  • the variable adjustment of a color radiation advantageous if at least three sets of at least one light source and an associated driver circuit are present (corresponding to at least three strands), the light sources are at least two sets or strands each other in different colors.
  • the lighting module is described schematically using an exemplary embodiment.
  • FIG. 1 shows a lighting module in an exploded view obliquely from the front
  • FIG 2 shows the lighting module of FIG 1 in an exploded view obliquely from behind
  • FIG. 3 shows a sketch of a circuit of a light chain with a plurality of lighting modules with distributed driver circuit.
  • FIG. 1 and FIG. 2 each show a light module 1 comprising a chain of light modules 1 electrically connected to each other.
  • each module 1 / element of the chain has a scattering optics 5 and 5 arranged with a plurality of LEDs 2, 3, 4 in each beam direction
  • Further electronic components (not shown) are equipped with printed circuit board 6.
  • Front and back of the board 6 are a cover 7 and a heat sink. 8
  • a red LED 2, one of these opposite blue LED 3, and two adjacent green LEDs 4 are used per module 1.
  • This has an advantageous effect on the color mixture for white light, since the proportion of green is particularly high for a white mixture.
  • relatively inexpensive LEDs 2,3,4 can be used, which also need not be driven to their power limits.
  • Particularly suitable for this purpose is an activation of the LEDs 2, 3, 4 with a luminous component of green: blue: red of 60: 30: 10. Except white, by means of a suitable control of the LEDs 2, 3, 4 by means of pulse-width-modulated supply current, all others possible color mixtures are generated.
  • LEDs of the same color 2, 3, 4 are electrically connected in series (so-called "strands"), two separate series circuits (i.e., two strands) being used for the color green.
  • the current per string is determined by means of a parallel connection of electronic components, eg. B. ICs and resistors (not shown), set, which convert the excess power, which may be different due to the production-related different forward voltages of the LEDs 2,3,4, in heat.
  • These components are arranged on the modules 1 / boards 6 of the chain to distribute the heat evenly across the boards 6, resulting in more homogeneous operating conditions of the individual modules 1.
  • the electrical connection is made via a single or multi-pole electrical line, z. B. the ribbon cable 9 shown, or via individual lines, each formed for example as a strand or solid wire, which on the board 6 is closed.
  • the power supply lines are looped through the board 6 and led to another cable connection, from which in turn a cable 9 leads to the other module.
  • These two cables 9 or electrically connected cable connections are thus electrically connected to each other.
  • only one power connection is sufficient for the power supply of the module 1.
  • the LEDs 2, 3, 4 can be equipped with or without patch scattering optics 5 and can be present in a packaged form (LED chip in a housing) or unhoused version (only the LED chip).
  • each of the LEDs 2, 3, 4 has a similar flat diffusing lens 5 with a wide radiation angle. This makes it possible with simple means a way to achieve comparatively uniform illumination at the same time wide viewing angles.
  • the structure shown has only a small overall height in the region of the luminous elements 2, 3, 4, 5.
  • the illustrated circuit board 6 is a metal core board comprising a patterned copper layer on a dielectric 10, e.g. B. of polyimide or epoxy resin, and a substrate 11, z. As aluminum, copper or other metal. In this case, the heat generated on the board 6 on the large
  • the heat sink 8 is preferably made of a material of high thermal conductivity, such as. As aluminum. Alternatively, heat sinks 8 using copper, zinc, and / or magnesium may also be used, or generally using highly conductive materials, such as metals.
  • the heat sink 8 is attached by means of a thermally conductive adhesive bond (electrically conductive or insulating) to the back of the board 6.
  • the heat sink 8 has a rear side mounted on a plate 12 arrangement of regularly arranged pins 13 of the same height. For attachment to a mounting surface, z.
  • the arrangement of the retaining tabs 14 in the middle of the long edges 8a and the longer side edge of the elongated heat sink 8 is particularly advantageous for two reasons: First, then the distance to the heat sources (LEDs, electrical / electronic components) low. This results in a particularly strong heating of the retaining tabs 14, which provides for additional dehumidification of the module 1 by heat conduction over the retaining tabs 14 to the mounting surface. Second, for free convection cooling on the heat sink 8, the long cooling body edges 8a of the air flowing through provide greater cross-sectional area (better cooling), and a negative influence of the retaining tabs 14 is less pronounced than with the smaller cross-sectional area short edges 8b for the air. This leads to thermal properties of the heat sink 8, which depend less on the orientation of the heat sink 8 (eg vertically or horizontally) on a mounting surface than on differently arranged holding tabs 14.
  • the length of the pins 13 is chosen so that they protrude further back from the plate 12 than the retaining tabs 14 (height difference preferably from 0.05 to 0.3 mm). This ensures the contact of one or more pins 13 with the mounting surface and thus an additional Entwarmung by Kondutation on the bearing surfaces of the pins 13 on the mounting surface, which preferably consists of metal.
  • the fastening of the heat sink 8 by means of the retaining tabs 14 is realized here by screws whose screw holes are shown in the retaining tabs 14 (without reference numerals).
  • the heat sink 8 is surface-treated, for. Example by means of a powder coating or anodization. This achieves a higher thermal emissivity than that of the raw material (better sys- heat dissipation due to increased heat radiation).
  • the coating protects the heat sink from harmful environmental influences. A bright color with a high degree of light reflection of the coating is advantageous in order to increase the optical properties in the diffuse-reflecting light box.
  • the heat sink 8 has on the short sides 8b a recess 15 in the form of a bead.
  • a guide channel for the cable 9 is created. With a pulling force on the cable 9 in an arbitrary orientation (eg, up, down, right or left) carried by this channel, a transmission of force on solder joints of the cable 9 with the board 6 such that the force only in a small, insensitive as possible Angle range is directed to the board surface. This avoids shearing and peeling forces on the solder joints.
  • the lid 7 is made of thermally stable and UV-stable plastic. A bright color is advantageous, combined with a reflectivity of more than 60% in the visible range of the light to improve the optical properties of the module 1 in the lightbox.
  • the cover 7 is shaped so that it partially conceals the heat sink 8 laterally and thus increases the overall reflectivity of the module 1.
  • the lid 7 has recesses 17, which are formed so that the LEDs 2,3,4 can radiate their light unhindered in place and angle.
  • the attachment of the lid 7 via a snap mechanism by means of plastic pins 18 which by corresponding holes (without reference numerals) in the
  • the cover 7 also has the property that it does not hermetically seal the underlying interior of the module 1, but lets moisture in and out. In this way, the accumulation of condensation is avoided.
  • the electrical contacts of the live parts on the board 6, 10 are coated with a layer of varnish. This reduces the risk of the formation of creepage distances and creepage distances.
  • the paint for quality inspection has fluorescent properties.
  • the viscosity of the paint is preferably selected so that it achieves complete wetting of the contacts via the effect of the capillary action.
  • Advantageous are viscosities in the range of 100-500 mPas.
  • FIG. 3 shows a luminous chain 101, z. B. for backlighting of light panels, with n several successively interconnected lighting modules ml, rn2, ..., mn.
  • the light modules have the same basic design.
  • Each of the light modules ml, m2,..., Mn has an exemplary light-emitting diode 102 and an LED driver circuit in the form of a current control circuit 103 for supplying power to the light-emitting diode (s) 102.
  • the current control circuit 103 is electrically connected between two respective driver power supply lines 104, 105.
  • One of these supply lines 105 corresponds to a continuous light source line 105, which is the LED 102 interposed.
  • the current control circuit 103 is electrically connected to one of its supply inputs to a cathode side of the associated LED 102.
  • the driver supply line 104 By tapping off the required voltage-here in comparison with the driver supply line 104 -the voltage potential at the cathode of the LED 102 placed on the respective light module ml, m2,..., Mn, advantageously a connecting line between the light modules ml, m2, .. ., Mn saved.
  • Driver outputs of the control circuit 103 are each electrically connected to a continuous light source supply line 106.
  • the driver outputs are not led to the LED 102, but connected via the light source supply line 106. Only up the last, so terminal light module mn the light source supply line ⁇ 10 ⁇ is electrically connected to the light source line 105.
  • the partial currents of the individual, electrically parallel-connected control circuits 103 are all brought together at a node 107 on the terminal light module mn, and then the summation current is passed through the serially connected LEDs 102.
  • the light module mn in which the light source supply line 106 is electrically connected to the light source line 105, can be derived, for example, from the basic shape of the other light modules ml, m2,..., By seeing between open in the basic form contacts 108 of the light source supply line 106 and the light source line 105, a bridge 109 is used.
  • all the lighting modules can correspond to the basic form with open contacts, wherein, for operation of the light chain, the free terminal of the light source supply line 106 of the terminal lighting module is electrically connected to the free terminal of the light source line 105.
  • This variant has the advantage that the length of the light chain can be flexibly adjusted in the field and is limited essentially only by the maximum power consumption.
  • the illustrated luminous chain 101 has the advantage that, first, no separate module is required for controlling the light-emitting diodes 102 and, secondly, due to the distribution of the driver components to the individual illumination modules ml, m2,..., Which are at least thermally, but usually also spatially separated. mn the occurring power dissipation, which is converted into heat, is also distributed to the individual light modu lml, m2, ..., mn. This leads to more homogeneous operating conditions of the individual LEDs 102. Occurring power loss fluctuations due to fluctuations in the electrical As a result, parameters of the LEDs 102 do not appear to be spotty at one location, which advantageously mitigates selective heating and their influence on the optical parameters of the LEDs 102.
  • the illustrated electrical interconnection of LEDs 102 may also be referred to as a string.
  • the arrangement shown corresponds to an LED string on the luminous chain 1 with a distributed driver circuit.
  • single-color LEDs can be used, for. B. also white glowing LEDs.
  • the number and color of the LEDs on a module is not limited and may, for. B. also be one.
  • the retaining tabs need not be screwed, they can rather be attached as appropriate to the mounting surface.
  • the heat sink may also be shaped so that it can be snapped or clipped into a preassembled guide rail on the mounting surface.
  • the heat sink instead of by means of an adhesive bond z. B. by means of a screw or rivet and preferably another intermediate layer of thermally conductive and / or electrically insulating material (so-called. TIM material) to be connected to the board.
  • TIM material thermally conductive and / or electrically insulating material
  • metal core boards z instead of metal core boards z.
  • B. board materials such as FR4 or a so-called. FLEX film can be used.
  • the bulge of the lid can alternatively be chosen so that it exerts a force on the cable, which fixes or clamps the cable in the channel.
  • WEI terhin a fixation of the cable can be achieved without beading in the heat sink, for example, by holding-down device are formed in the lid, which depress the cable on the flat Kuhlkorperflache.
  • the lid instead of plastic z. B. also made of metal and act as additional Kuhlkorperelement.
  • non-fluorescent conformal coatings can be used. It may, in particular when using m réelleraumen, also be dispensed with a protective coating.
  • the attachment of the lid can be realized by means of, for example, screws or rivets instead of the plastic pins.
  • a possible, non-restricting application of the light module or the chain consists in mounting on a rear wall (eg an aluminum plate) within a diffuse-scattering lined plexiglas box (so-called "light box”) or within advertising letters for the area of the so-called "Architectural Backlightmg”.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Endoscopes (AREA)

Abstract

La présente invention concerne un module lumineux destiné à une chaîne lumineuse comprenant au moins une source lumineuse et au moins une connexion électrique qui permet d'alimenter la ou les sources lumineuses. Selon l'invention, le module lumineux présente un dissipateur thermique.
EP08802139.9A 2007-09-14 2008-09-12 Module lumineux Not-in-force EP2185857B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13198835.4A EP2716960A3 (fr) 2007-09-14 2008-09-12 Module d'éclairage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007043861A DE102007043861A1 (de) 2007-09-14 2007-09-14 Leuchtmodul
PCT/EP2008/007588 WO2009036934A2 (fr) 2007-09-14 2008-09-12 Module lumineux

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP13198835.4A Division EP2716960A3 (fr) 2007-09-14 2008-09-12 Module d'éclairage
EP13198835.4A Division-Into EP2716960A3 (fr) 2007-09-14 2008-09-12 Module d'éclairage

Publications (2)

Publication Number Publication Date
EP2185857A2 true EP2185857A2 (fr) 2010-05-19
EP2185857B1 EP2185857B1 (fr) 2014-11-12

Family

ID=39971071

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08802139.9A Not-in-force EP2185857B1 (fr) 2007-09-14 2008-09-12 Module lumineux
EP13198835.4A Withdrawn EP2716960A3 (fr) 2007-09-14 2008-09-12 Module d'éclairage

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP13198835.4A Withdrawn EP2716960A3 (fr) 2007-09-14 2008-09-12 Module d'éclairage

Country Status (5)

Country Link
US (1) US8657462B2 (fr)
EP (2) EP2185857B1 (fr)
CN (1) CN101802485B (fr)
DE (1) DE102007043861A1 (fr)
WO (1) WO2009036934A2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10655837B1 (en) 2007-11-13 2020-05-19 Silescent Lighting Corporation Light fixture assembly having a heat conductive cover with sufficiently large surface area for improved heat dissipation
DE102009027493B4 (de) * 2009-07-07 2020-04-23 Robert Bosch Gmbh Entwärmung eines LED-beleuchteten Display-Moduls
DE102010043788B4 (de) * 2010-11-11 2023-12-07 Siteco Gmbh Schaltungsanordnung zum Betreiben mindestens einer Lichtquelle und Verfahren zum Herstellen einer derartigen Schaltungsanordnung
CN102946699B (zh) 2011-08-15 2017-04-12 欧司朗股份有限公司 电子模块的壳体和电子模块、发光模块以及背光源模块
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Also Published As

Publication number Publication date
US20110285298A1 (en) 2011-11-24
CN101802485B (zh) 2013-01-02
EP2716960A3 (fr) 2017-10-25
EP2716960A2 (fr) 2014-04-09
DE102007043861A1 (de) 2009-04-09
WO2009036934A3 (fr) 2009-05-28
WO2009036934A2 (fr) 2009-03-26
US8657462B2 (en) 2014-02-25
EP2185857B1 (fr) 2014-11-12
CN101802485A (zh) 2010-08-11

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