EP3004724B1 - Lighting device for a vehicle headlight - Google Patents
Lighting device for a vehicle headlight Download PDFInfo
- Publication number
- EP3004724B1 EP3004724B1 EP14738354.1A EP14738354A EP3004724B1 EP 3004724 B1 EP3004724 B1 EP 3004724B1 EP 14738354 A EP14738354 A EP 14738354A EP 3004724 B1 EP3004724 B1 EP 3004724B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lighting device
- light source
- led light
- optical element
- domes
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/19—Attachment of light sources or lamp holders
- F21S41/192—Details of lamp holders, terminals or connectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/29—Attachment thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/39—Attachment thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
- F21S45/48—Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/49—Attachment of the cooling means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
Definitions
- the invention relates to a lighting device for a vehicle headlamp, according to the features of the preamble of claim 1 and as from US 2007/0268703 known..
- LED light sources consisting of one or more light-emitting diodes are increasingly used to produce one (or more) main light distribution (s), such as high beam distribution, dimmed light distributions, e.g. Dipped beam, etc. used.
- main light distribution such as high beam distribution, dimmed light distributions, e.g. Dipped beam, etc. used.
- the light from one or more LED light sources is transmitted via one or more optical bodies, e.g. via one or more reflectors, attachment optics in the form of light-guiding bodies, etc., directly or via further optic bodies, into an area in front of the motor vehicle into which the vehicle headlamp is installed, and these illuminate / illuminate the area in front of the vehicle.
- the LED light source (s) are arranged on a heat sink.
- the LED light source (s) sits or sit on a support, which is usually in the form of an LED board, and the support in turn is arranged on the heat sink, for example glued to it.
- the associated optical body is positioned accordingly and then fixed to the heat sink or with respect to the heat sink, usually screwed with this or with another fixed component of the lighting device.
- the carrier and / or heat sink By clamping fixing with the fixing screwing the carrier and / or heat sink can be avoided on the optical body, so that the optical body, in particular a reflector, such as a free-form reflector, can be entzugĂȘt connected to the or the LED light sources.
- a reflector such as a free-form reflector
- the LED light source carrier is to equip before the installation of the lighting device according to exactly the or the LED light sources, as well as the optical body is to be manufactured according to accurate.
- the lighting device presented according to the invention can also be easily manufactured on the assembly line, since adjusting the optical body with respect to the LED light source (s) on the assembly line is no longer necessary and therefore the lighting device can be manufactured quickly and efficiently.
- Another advantage is that the heat sink falls out of the tolerance chain in the lighting device according to the invention.
- At least two, preferably exactly two, domes are arranged on the optical body, it being particularly advantageous if the domes protrude parallel to one another from the optical body.
- a "domeâ is, for example, a pin-like component projecting from the optical body.
- the dome are formed integrally with the optical body, so that no unwanted forces are introduced via the otherwise necessary attaching the dome to the optical body in this.
- the optical body has at least one, preferably exactly two retaining springs, and wherein the positioning means for the LED light source carrier the at least two, preferably exactly two dome and the at least one, preferably exactly two Includes retaining springs.
- the carrier After placing the LED light source carrier on the optical body - in the direction of the dome - the carrier is pressed by the one or more retaining springs in the direction of the dome and so temporarily positioned.
- the LED light source carrier has a number of recesses corresponding to the number of domes, by means of which the LED light source carrier can be positioned in a direction normal to the orientation of the dome.
- the recesses are arranged and designed such that the LED light source carrier can be threaded with the recesses in the domes and then moved in the direction of the optic body, where the carrier is finally pressed into the retaining springs, so that they are the carrier Press the recesses against the dome.
- the carrier is thus in the X direction, i. set in the light exit direction in its position on the optical body at least temporarily.
- a positioning pin is further arranged on the optical body, preferably formed integrally with the optical body, and that the LED light source carrier has a corresponding recess, by means of which the LED light source carrier in a direction normal to the Alignment of the dome is positionable.
- this is the positioning between the two retaining springs, most conveniently located in the middle between the positioning pins.
- the heat sink is arranged on the optical body with prepositioned LED light source carrier.
- the positioning means for the heat sink comprise at least one, preferably two PositionierausEnglishept and / or positioning ribs, which are arranged on the optical body, preferably formed integrally with this / are.
- the two PositionierausEnglishept and / or positioning ribs parallel to each other.
- the heat sink on a side facing the optical body at least one, preferably exactly two corresponding to the positioning recesses and / or positioning ribs Positionierausrippen and / or Positionierausappelgeber.
- the heat sink is inserted with its ribs in the PositionierausEnglishept so that they surround the ribs laterally, and so the position of the heat sink is defined transversely to the longitudinal extent of the ribs.
- the positioning means for the heat sink are formed by the dome arranged on the optical body.
- the fixing means has one of the number of domes corresponding, preferably exactly two elastic clip portions.
- the elastic clip portions are in particular or in any case in the direction of the longitudinal extent of the dome, that is formed elastically deformable in the Z direction.
- each dome has, in an area facing away from the optical body, at least one ramp section for each elastic clip section of the fixing element, and when the fixing element is pushed onto the optical body or cooling body in a direction normal to the orientation of the dome, the elastic Clamp sections are pressed in the direction of the optical body.
- the LED light source carrier and the heat sink are permanently fixed to the optical body by simply sliding the fixing element from the front onto the optical body with the heat sink exposed.
- the heat sink has a number of dome openings corresponding to the number of domes through which the domes are inserted.
- the run-on portions are at a distance above the respective dome opening.
- the heat sink has at least one, preferably exactly two stop pins, which at least one stop pin is preferably formed integrally with the heat sink, wherein the at least one stop pin limits the Aufschiebiolo the fixing on the heat sink.
- the holding means have at least one, preferably beveled pin and at least one corresponding recess.
- the recess is preferably provided on the heat sink, the pin on the fixing means; by the bevel, the pin can slide into the depression, then hooked There, so that the fixing against the Aufschiebeoplasty can not be pulled down by the heat sink.
- the fixing means is designed as a design panel, which is formed for example of plastic or sheet metal.
- the fixing means thus serves to fasten the heat sink and the LED light source carrier, on the other hand, areas of the lighting device that are not to be visually accessible can then be screened with the fixing agent.
- the invention has been found, when the optical body is designed as a reflector.
- the lighting device is designed as a light module for a vehicle headlight.
- the light module is a reflection module or a projection module.
- a motor vehicle headlight which has at least one lighting device described above.
- FIG. 1 shows the invention-relevant components of a lighting device 1 for a vehicle headlight.
- the lighting device 1 comprises an LED light source 2 which, in the embodiment shown, consists of a plurality of LEDs (light-emitting diodes).
- the lighting device 1 comprises a light-shaping optical body 3, which is associated with the LED light source 2.
- the LED light source 2 couples light via a coupling point 3d in the optical body 3 a.
- the optical body 3 is a reflector 3
- the coupling point 3d is formed as an opening in the reflector, via which the LED light source 2 can emit their light on the reflective surface of the reflector.
- one or more LED light sources can be provided, wherein each LED light source can have one or more LEDs.
- each LED light source can have one or more LEDs.
- some or all of the LED light sources are independently controllable, ie switched on / off and optionally also dimmable.
- the lighting device comprises an LED light source carrier 4, on which the LED light source 2 is mounted.
- the carrier 4 is usually an LED board.
- the lighting device 1 summarizes still a heat sink 5 for dissipating the heat generated by the LED light source 2 and a fixing means 6, whose function will be described in more detail below.
- the LED board 4 is initially positioned on the optical body 3 and temporarily fixed and then the heat sink 5 is positioned on the optical body 3 and the LED platinum 4 and fixed with the fixing means 6.
- the optic body 3 has two preferably parallel webs or ribs 60, on which the carrier 4 rests.
- positioning means 3a, 3b, 3c for positioning the LED light source carrier 4 are initially provided on the optical body 3.
- the positioning means on the optical body 3 in this case comprise two domes 3a, which are integrally formed with the optical body 3 and projecting from this parallel to each other.
- the domes 3a are - generally, that is independent of the specific embodiment of the optical body - preferably arranged in the region of the "coupling point", ie in the concrete example in the region of the opening 3d of the reflector 3. It is optimal if the dome 3a in this case symmetrically the Einkoppelstelle are arranged.
- the positioning means comprise two retaining springs 3b, which in turn are preferably formed integrally with the optical body 3.
- FIGS. 2 and 3 show the carrier 4 before placing, this is placed along the dome 3a in the direction of the optical body 3 on this.
- FIG. 4 shows the carrier 4 in already placed on the optical body 3 and positioned state. In this case, after placing the LED light source carrier 4 on the optical body 3, the carrier 4 is pressed by the retaining springs 3b in the direction of the dome 3a and thus temporarily positioned.
- the LED light source carrier 4 has two - preferably open on one side - recesses 4a, which surround the associated dome 3a - in the example shown on three sides. Via the recesses 4a, the LED light source carrier 4 can be positioned in the X direction normal to the orientation Z of the domes 3a.
- the recesses 4a are thus arranged and configured in principle such that the LED light source carrier 4 can be threaded with the recesses 4a in the domes 3a and subsequently moved in the direction of the optic body 3, where the support 4 is finally pressed into the retaining springs 3b , so that they press the carrier with the recesses 4a against the dome 3a (see, eg FIG. 3 ).
- the carrier 4 is in this way in the X-direction (see the coordinates FIG. 1 ), ie at least temporarily positioned and held in the light exit direction in its position on the optical body.
- the positioning means further comprise a positioning pin 3c, which is arranged on the optical body 3, preferably formed integrally with the optical body 3, and the LED light source carrier 4 has a corresponding recess 4b, by means of which the LED light source carrier 4 in the Y-direction can be positioned on the optical body 3.
- Portionable means in each case that in the respective direction (X, Y, 7), the position of the carrier, etc. with the respective component (dome, pin, retaining spring) is determined.
- the positioning pin 3c between the two retaining springs 3b most conveniently located in the middle between the positioning pin 3c.
- the carrier 4 can thus be in the Y direction, i. horizontally and normally in the X direction.
- the heat sink 5 is positioned on the optical body 3, for which purpose positioning means 31 for the heat sink 5 are provided on the optical body 3.
- the positioning means for the heat sink 5 are formed in the embodiment shown as two positioning recesses 31 (see, for example, Figures 1 and 2), which positioning recesses 31 are arranged on the optical body 3, preferably formed integrally therewith.
- the two Positionierausström traditions 31 parallel to each other.
- the cooling body 5 has, on a side facing the optical body 5, two positioning ribs 30 that correspond to the positioning recesses 31, see eg FIG FIG. 1 ,
- the heat sink is inserted with its positioning ribs 30 in the PositionierausEnglishept 31 so that they surround the ribs 30 laterally, and so the position of the heat sink is defined transversely to the longitudinal extent of the ribs.
- the heat sink 5 has two dome openings 5 a, through which the dome 3 a are inserted during the application of the heat sink 5.
- the dome 3a on two casserole portions 3a ' whose function will be discussed below, and the dome openings 5a are sufficiently large dimensions, so that the dome 3a together with their casserole portions 3a' can be pushed through them.
- the casserole portions 3a ' are preferably integrally formed with their respective dome 3a.
- a fixing element 6 is finally provided.
- This fixing element 6 can be fastened to the optical body 3 such that in the fastened state, the fixing element 6 presses the heat sink 5 against the LED light source carrier 4, so that it is fixed in its position on the optical body 3.
- the fixing element 6 holds the heat sink 5 by clamping on the optical body 3.
- the fixing element 6 has one or more return areas, which exert a clamping force when applied, in particular a sliding of the fixing element 6 on the optical body 3 and heat sink 5. This clamping force presses the heat sink 5 against the LED light source carrier 4 and this against the optical body 3, so that the Carrier 4 is permanently fixed in its set as described above, temporary position.
- the optical body in particular a reflector, such as a free-form reflector, can be preferably connected to the or the LED light sources.
- the LED light source carrier 4 is to be equipped correspondingly exactly with the LED light source or sources 2 prior to the assembly of the lighting device 1, and the optical body 3 is to be manufactured correspondingly accurately.
- the lighting device presented according to the invention can also be easily manufactured on the assembly line, since adjusting the optical body with respect to the LED light source (s) on the assembly line is no longer necessary and therefore the lighting device can be manufactured quickly and efficiently.
- Another advantage is that the heat sink falls out of the tolerance chain in the lighting device according to the invention.
- the above-mentioned return areas of the fixing element 6 - which are one, two or more return areas, the number preferably corresponds to the number of domes 3a - are formed in the embodiment shown as (corresponding to the number of 2 domes) exactly two elastic clip portions 6a Each clip section 6a represents a reset area.
- the elastic clip portion 6a are in particular or in any case in the direction of the longitudinal extent of the dome, that is formed elastically deformable in the Z direction.
- each dome 3 a has, in a region facing away from the optical body 3, a run-on section 3 a 'for in each case one elastic clip section 6 a of the fixing element 6.
- FIG. 6 and 8th shows the fixing element 6 in a patch on the heat sink 5, but not yet deferred state.
- the fixing element has 6 openings 6a 'for pushing through the dome 3 together with ramp surfaces 3a.
- the clip portions 6a are formed slotted so that a displacement of the fixing element 6 on the heat sink 5 is possible, the dome 3a in the corresponding slots 6a "( FIG. 6 ) are pushed.
- the LED light source carrier 4 and the heat sink are permanently fixed to the optical body by simply pushing the fixing element 6 from the front onto the optical body 3 with exposed heat sink 5.
- FIG. 10 shows once again the situation in the region of an elastic portion 6a after pushing the fixing element 6 onto the heat sink 5.
- the heat sink 5 additionally has two stop pins 5b, which are preferably formed integrally with the heat sink 5b, the stop pin 5b delimiting the sliding movement of the fixing element 6 onto the heat sink 5.
- the stop pin 5b With the stop pin 5b further movement of the fixing element 6verhindert, the stop pin 5b thus forms a stop for the fixing element 6 so that it remains in a defined X position to the other components.
- FIGS. 11 and 12 Referenced, in particular in FIG. 12 showing a section along the line AA through the lighting device 1, it can be seen that the heat sink 5 and the fixing element 6 have holding means 5 ', 6', which prevents the fixing element 6 from being detached from the heat sink 5 in the pushed-on state.
- the holding means have at least one, preferably bevelled pin 6 'and at least one corresponding recess 5'.
- the recess 5 ' is preferably provided on the heat sink 5, the pin 6' on the fixing means; by the bevel, the pin 6 'in the recess 5' push, then hooked there, so that the fixing against the Aufschiebeoplasty can not be pulled down by the heat sink.
- the fixing means 6 is designed as a design panel, which is formed for example of plastic or sheet metal.
- the fixing means for fixing the heat sink and the LED light source carrier on the other hand can be shielded with the fixing then also areas of the lighting device, which are not visually accessible.
- the design panel 6 of the heat sink 5 can be covered with the design panel 6 of the heat sink 5, so that it is not visible from the outside in the installed state of the lighting device.
- an LED light source carrier to an optical body, in particular a reflector, for example a free-form reflector without screws, so that no torque acts on the optical body. It will merely applied a tensile force in the region of the dome, that is, it is only introduced via the dome, a tensile force in the optic body.
Description
Die Erfindung eine Beleuchtungsvorrichtung fĂŒr einen Fahrzeugscheinwerfer, entsprechend den Merkmalen des Oberbegriffes von Anspruch 1 und wie aus
Im Fahrzeugscheinwerferbau kommen vermehrt LED-Lichtquellen, welche aus einer oder mehreren Leuchtdioden bestehen, zur Erzeugung einer (oder mehrerer) Hauptlichtverteilung(en), wie etwa von Fernlichtverteilung, abgeblendeten Lichtverteilungen, z.B. Abblendlicht usw. zum Einsatz. Ăblicherweise wird dabei das Licht von einer oder mehreren LED-Lichtquellen ĂŒber einen oder mehrere Optikkörper, z.B. ĂŒber einen oder mehrere Reflektoren, Vorsatzoptiken etwa in Form von Lichtleitkörpern etc., direkt oder ĂŒber weitere Optikkörper, in einen Bereich vor dem Kraftfahrzeug, in welches der Fahrzeugscheinwerfer eingebaut ist, abgestrahlt und diese beleuchtet/beleuchten den Bereich vor dem Fahrzeug.In vehicle headlamp design, LED light sources consisting of one or more light-emitting diodes are increasingly used to produce one (or more) main light distribution (s), such as high beam distribution, dimmed light distributions, e.g. Dipped beam, etc. used. Usually, the light from one or more LED light sources is transmitted via one or more optical bodies, e.g. via one or more reflectors, attachment optics in the form of light-guiding bodies, etc., directly or via further optic bodies, into an area in front of the motor vehicle into which the vehicle headlamp is installed, and these illuminate / illuminate the area in front of the vehicle.
Um eine gesetzeskonforme Lichtverteilung realisieren zu können, ist es wichtig, dass Optikkörper und zugeordnete Lichtquelle(n) korrekt zueinander positioniert werden. Insbesondere bei der Verwendung von LED-Lichtquellen kommt diesem Thema eine noch verstĂ€rkte Bedeutung zu, da hier relativ geringe Abweichungen von der Sollposition bereits zu unerwĂŒnschten und/oder nicht zulĂ€ssigen Effekten im Lichtbild fĂŒhren können.In order to be able to realize a law-compliant light distribution, it is important that the optical body and associated light source (s) are correctly positioned relative to each other. Especially with the use of LED light sources, this topic is even more important, since relatively small deviations from the desired position can already lead to unwanted and / or impermissible effects in the photograph.
Ăblicherweise ist bzw. sind die LED-Lichtquelle(n) auf einem KĂŒhlkörper angeordnet. Die LED-Lichtquelle(n) sitzt bzw. sitzen dabei auf einem TrĂ€ger, der ĂŒblicherweise in Form einer LED-Platine ist, und der TrĂ€ger wiederum ist auf dem KĂŒhlkörper angeordnet, beispielsweise mit diesem verklebt. Der zugehörige Optikkörper wird entsprechend positioniert und anschlieĂend an dem KĂŒhlkörper bzw. in Bezug auf den KĂŒhlkörper fixiert, in der Regel mit diesem oder mit einem anderen feststehenden Bauteil der Beleuchtungsvorrichtung verschraubt.Usually, the LED light source (s) are arranged on a heat sink. The LED light source (s) sits or sit on a support, which is usually in the form of an LED board, and the support in turn is arranged on the heat sink, for example glued to it. The associated optical body is positioned accordingly and then fixed to the heat sink or with respect to the heat sink, usually screwed with this or with another fixed component of the lighting device.
Dabei hat sich allerdings hÀufig gezeigt, dass es durch den Befestigungsvorgang, insbesondere durch das Festschrauben des Optikkörpers und die dabei auftretenden KrÀfte zu einem Verziehen des Optikkörpers kommen kann oder es generell bei dem Befestigungsvorgang zu einem unbeabsichtigten Verstellen des Optikkörpers aus der Optimalposition kommt. Dies hat nachteilige Auswirkungen auf das erzielte Lichtbild, teilweise mit dem Resultat, dass das Lichtbild nicht mehr den gesetzlichen Anforderungen entspricht.However, it has frequently been shown that it can come to a distortion of the optic body by the fastening process, in particular by tightening the optic body and the forces occurring or it comes generally in the attachment process to an unintentional adjustment of the optic body from the optimum position. This has a detrimental effect on the photograph obtained, partly with the result that the photograph no longer meets the legal requirements.
Insbesondere stellt sich dabei das Problem des Verziehens des Optikkörpers, wenn der Optikkörper als Reflektor ausgebildet ist, welche hĂ€ufig dĂŒnnwandig ausgefĂŒhrt und entsprechend anfĂ€llig fĂŒr Verzug sind.In particular, this raises the problem of warping the optic body when the optic body is designed as a reflector, which are often made thin-walled and are correspondingly prone to distortion.
Es ist eine Aufgabe, eine Beleuchtungsvorrichtung fĂŒr Kraftfahrzeugscheinwerfer zu schaffen, bei welcher die oben genannten Probleme beseitigt sind und sich eine exakte Einstellung der Position der zumindest einen LED-Lichtquelle in Bezug auf den zumindest einen Optikkörper realisieren lĂ€sst.It is an object to provide a lighting device for motor vehicle headlights, in which the above-mentioned problems are eliminated and an exact adjustment of the position of the at least one LED light source with respect to the at least one optical body can be realized.
Diese Aufgabe wird mit einer eingangs erwÀhnten Beleuchtungsvorrichtung mit den Merkmalen von Anspruch 1 gelöst.This object is achieved with an illumination device mentioned above with the features of
Mit dem Fixierelement wird der KĂŒhlkörper gemÀà der Erfindung klemmend an dem Optikkörper befestigt. Die Klemmkraft drĂŒckt dabei den KĂŒhlkörper gegen den LED-Lichtquellen-TrĂ€ger und diesen gegen den Optikkörper, sodass der TrĂ€ger in seiner eingestellten Position dauerhaft fixiert wird.With the fixing of the heat sink according to the invention is clamped attached to the optical body. The clamping force presses the heat sink against the LED light source carrier and this against the optical body, so that the carrier is permanently fixed in its set position.
Durch das klemmende Fixieren mit dem Fixierelement kann ein Anschrauben des TrĂ€ger und/oder KĂŒhlkörpers am Optikkörper vermieden werden, sodass der Optikkörper, insbesondere ein Reflektor, etwa ein Freiformreflektor, verzugsweise mit der oder den LED-Lichtquellen verbunden werden kann.By clamping fixing with the fixing screwing the carrier and / or heat sink can be avoided on the optical body, so that the optical body, in particular a reflector, such as a free-form reflector, can be entzugsweise connected to the or the LED light sources.
Der LED-LichtquellentrĂ€ger ist dabei bereits vor der Montage der Beleuchtungsvorrichtung entsprechend genau mit der oder den LED-Lichtquellen zu bestĂŒcken, ebenso ist der Optikkörper entsprechend genau zu fertigen. Dadurch lĂ€sst sich die erfindungsgemÀà vorgestellte Beleuchtungsvorrichtung aber auch problemlos am Montageband fertigen, da ein Einstellen des Optikkörpers in Bezug auf die LED-Lichtquelle(n) am Montageband nicht mehr notwendig ist und daher die Beleuchtungsvorrichtung rasch und effizient gefertigt werden kann.The LED light source carrier is to equip before the installation of the lighting device according to exactly the or the LED light sources, as well as the optical body is to be manufactured according to accurate. As a result, however, the lighting device presented according to the invention can also be easily manufactured on the assembly line, since adjusting the optical body with respect to the LED light source (s) on the assembly line is no longer necessary and therefore the lighting device can be manufactured quickly and efficiently.
Weiters von Vorteil ist, dass der KĂŒhlkörper bei der erfindungsgemĂ€Ăen Beleuchtungsvorrichtung aus der Toleranzkette herausfĂ€llt.Another advantage is that the heat sink falls out of the tolerance chain in the lighting device according to the invention.
ErfindungsgemÀà ist vorgesehen, dass an dem Optikkörper zumindest zwei, vorzugsweise genau zwei Dome angeordnet sind, wobei es insbesondere von Vorteil ist, wenn die Dome parallel zueinander verlaufend von dem Optikkörper abstehen.According to the invention, at least two, preferably exactly two, domes are arranged on the optical body, it being particularly advantageous if the domes protrude parallel to one another from the optical body.
Bei einem "Dom" handelt es sich beispielsweise um einen zapfenartigen, von dem Optikkörper abstehenden Bauteil.A "dome" is, for example, a pin-like component projecting from the optical body.
Weiters ist es von Vorteil, wenn die Dome einstĂŒckig mit dem Optikkörper ausgebildet sind, sodass keine unerwĂŒnschten KrĂ€fte ĂŒber das sonst notwendige Befestigen der Dome an dem Optikkörper in diesen eingeleitet werden.Furthermore, it is advantageous if the dome are formed integrally with the optical body, so that no unwanted forces are introduced via the otherwise necessary attaching the dome to the optical body in this.
Weiters ist mit Vorteil bei dieser bevorzugten AusfĂŒhrungsform noch vorgesehen, dass der Optikkörper zumindest eine, vorzugsweise genau zwei Haltefedern aufweist, und wobei die Positioniermittel fĂŒr den LED-Lichtquelle-TrĂ€ger die zumindest zwei, vorzugsweise genau zwei Dome sowie die zumindest eine, vorzugsweise genau zwei Haltefedern umfasst.Furthermore, it is advantageously provided in this preferred embodiment that the optical body has at least one, preferably exactly two retaining springs, and wherein the positioning means for the LED light source carrier the at least two, preferably exactly two dome and the at least one, preferably exactly two Includes retaining springs.
Nach dem Aufsetzen des LED-Lichtquellen-TrĂ€gers auf den Optikkörper - in Richtung der Dome - wird der TrĂ€ger von der oder den Haltefedern in Richtung der Dome gedrĂŒckt und so vorĂŒbergehend positioniert.After placing the LED light source carrier on the optical body - in the direction of the dome - the carrier is pressed by the one or more retaining springs in the direction of the dome and so temporarily positioned.
Von Vorteil ist es dazu, wenn der LED-Lichtquellen-TrÀger eine der Anzahl der Dome entsprechende Anzahl an Ausnehmungen aufweist, mittels welcher der LED-Lichtquellen-TrÀger in eine Richtung normal auf die Ausrichtung der Dome positionierbar ist.It is advantageous if the LED light source carrier has a number of recesses corresponding to the number of domes, by means of which the LED light source carrier can be positioned in a direction normal to the orientation of the dome.
Die Ausnehmungen sind dabei derart angeordnet und ausgebildet, dass der LED-Lichtquellen-TrĂ€ger mit den Ausnehmungen in den Domen eingefĂ€delt werden kann und anschlieĂend in Richtung des Optikkörpers bewegt werden kann, wo der TrĂ€ger schlieĂlich in die Haltefedern hineingedrĂŒckt wird, so dass diese den TrĂ€ger mit den Ausnehmungen gegen die Dome drĂŒcken.The recesses are arranged and designed such that the LED light source carrier can be threaded with the recesses in the domes and then moved in the direction of the optic body, where the carrier is finally pressed into the retaining springs, so that they are the carrier Press the recesses against the dome.
Der TrÀger ist auf diese Weise in der X-Richtung, d.h. in Lichtaustrittsrichtung in seiner Position an dem Optikkörper zumindest temporÀr festgelegt.The carrier is thus in the X direction, i. set in the light exit direction in its position on the optical body at least temporarily.
Weiters ist es von Vorteil, wenn an dem Optikkörper weiters ein Positionierzapfen angeordnet, vorzugsweise einstĂŒckig mit dem Optikkörper ausgebildet ist, und dass der LED-Lichtquellen-TrĂ€ger eine korrespondierende Ausnehmung aufweist, mittels welcher der LED-Lichtquellen-TrĂ€ger in einer Richtung normal auf die Ausrichtung der Dome positionierbar ist.Furthermore, it is advantageous if a positioning pin is further arranged on the optical body, preferably formed integrally with the optical body, and that the LED light source carrier has a corresponding recess, by means of which the LED light source carrier in a direction normal to the Alignment of the dome is positionable.
Vorzugsweise ist das dabei der Positionierzapfen zwischen den beiden Haltefedern, am zweckmĂ€Ăigsten in der Mitte zwischen der Positionierzapfen angeordnet.Preferably, this is the positioning between the two retaining springs, most conveniently located in the middle between the positioning pins.
Mit diesem Zapfen kann der TrÀger in der Y-Richtung, d.h. in horizontaler Richtung und normal auf die X-Richtung positioniert werden.With this pin, the carrier in the Y direction, i. horizontally and normally in the X direction.
AnschlieĂend wird auf den Optikkörper mit darauf vorpositioniertem LED-Lichtquellen-TrĂ€ger der KĂŒhlkörper angeordnet.Subsequently, the heat sink is arranged on the optical body with prepositioned LED light source carrier.
Vorzugsweise umfassen die Positioniermittel fĂŒr den KĂŒhlkörper zumindest eine, vorzugsweise zwei Positionierausnehmungen und/oder Positionierrippen, welche auf dem Optikkörper angeordnet, vorzugsweise mit diesem einstĂŒckig ausgebildet ist/sind.Preferably, the positioning means for the heat sink comprise at least one, preferably two Positionierausnehmungen and / or positioning ribs, which are arranged on the optical body, preferably formed integrally with this / are.
Mit Vorteil verlaufen die beiden Positionierausnehmungen und/oder Positionierrippen parallel zueinander.Advantageously, the two Positionierausnehmungen and / or positioning ribs parallel to each other.
GĂŒnstig ist es dabei, wenn der KĂŒhlkörper an einer dem Optikkörper zugewandten Seite zumindest eine, vorzugsweise genau zwei zu den Positionierausnehmungen und/oder Positionierrippen korrespondierende Positionierausrippen und/oder Positionierausnehmungen aufweist.It is advantageous if the heat sink on a side facing the optical body at least one, preferably exactly two corresponding to the positioning recesses and / or positioning ribs Positionierausrippen and / or Positionierausnehmungen.
Der KĂŒhlkörper wird mit seinen Rippen in die Positionierausnehmungen eingesetzt, sodass diese die Rippen seitlich umgreifen, und so die Position des KĂŒhlkörpers quer zu der LĂ€ngserstreckung der Rippen definiert ist.The heat sink is inserted with its ribs in the Positionierausnehmungen so that they surround the ribs laterally, and so the position of the heat sink is defined transversely to the longitudinal extent of the ribs.
Alternativ oder zusĂ€tzlich kann auch vorgesehen sein, dass die Positioniermittel fĂŒr den KĂŒhlkörper durch die an dem Optikkörper angeordneten Dome gebildet sind.Alternatively or additionally, it can also be provided that the positioning means for the heat sink are formed by the dome arranged on the optical body.
ErfindungsgemĂ€Ă, unabhĂ€ngig davon, ob die Dome als Positioniermittel fĂŒr den KĂŒhlkörper dienen oder nicht, weist das Fixiermittel eine der Anzahl der Dome entsprechende, vorzugsweise genau zwei elastische Klammerabschnitte aufweist.According to the invention, irrespective of whether the domes serve as positioning means for the heat sink or not, the fixing means has one of the number of domes corresponding, preferably exactly two elastic clip portions.
Die elastischen Klammerabschnitte sind dabei insbesondere bzw. auf jeden Fall in Richtung der LĂ€ngserstreckung der Dome, also in Z-Richtung elastisch verformbar ausgebildet.The elastic clip portions are in particular or in any case in the direction of the longitudinal extent of the dome, that is formed elastically deformable in the Z direction.
ErfindungsgemÀà ist vorgesehen, dass jeder Dom in einem dem Optikkörper abgewandten Bereich zumindest einen Auflaufabschnitt fĂŒr jeweils einen elastischen Klammerabschnitt des Fixierelementes aufweist, und wobei bei einem Aufschieben des Fixierelementes auf den Optikkörper bzw. den KĂŒhlkörper in einer Richtung normal auf die Ausrichtung der Dome die elastischen Klammerabschnitte in Richtung des Optikkörpers gedrĂŒckt werden.According to the invention, each dome has, in an area facing away from the optical body, at least one ramp section for each elastic clip section of the fixing element, and when the fixing element is pushed onto the optical body or cooling body in a direction normal to the orientation of the dome, the elastic Clamp sections are pressed in the direction of the optical body.
Auf diese Weise werden durch einfaches Aufschieben des Fixierelementes von vorne auf den Optikkörper mit ausgesetztem KĂŒhlkörper der LED-Lichtquellen-TrĂ€ger und der KĂŒhlkörper an dem Optikkörper dauerhaft fixiert.In this way, the LED light source carrier and the heat sink are permanently fixed to the optical body by simply sliding the fixing element from the front onto the optical body with the heat sink exposed.
ZweckmĂ€Ăig ist es, wenn der KĂŒhlkörper eine der Anzahl der Dome entsprechende Anzahl an Domöffnungen aufweist, durch welche die Dome gesteckt sind.It is expedient if the heat sink has a number of dome openings corresponding to the number of domes through which the domes are inserted.
Insbesondere ist es gĂŒnstig, wenn in vollstĂ€ndig durchgeschobenem Zustand der Dome die Auflaufabschnitte in einem Abstand oberhalb der jeweiligen Domöffnung liegen.In particular, it is favorable if, in the fully pushed-through state of the dome, the run-on portions are at a distance above the respective dome opening.
Weiters ist es von Vorteil, der KĂŒhlkörper zumindest einen, vorzugsweise genau zwei Anschlagzapfen aufweist, welcher zumindest eine Anschlagzapfen vorzugsweise einstĂŒckig mit dem KĂŒhlkörper ausgebildet ist, wobei der zumindest eine Anschlagzapfen die Aufschiebbewegung des Fixierelementes auf den KĂŒhlkörper begrenzt.Furthermore, it is advantageous that the heat sink has at least one, preferably exactly two stop pins, which at least one stop pin is preferably formed integrally with the heat sink, wherein the at least one stop pin limits the Aufschiebbewegung the fixing on the heat sink.
SchlieĂlich ist es auch noch gĂŒnstig, wenn der KĂŒhlkörper und das Fixierelement Haltemittel aufweisen, welche ein Lösen des Fixierelementes von dem KĂŒhlkörper in aufgeschobenem Zustand verhindert.Finally, it is also still favorable if the heat sink and the fixing element have holding means which prevent a release of the fixing element from the heat sink in the pushed-on state.
Somit kann sichergestellt werden, dass ein manuelles Lösen des Fixierelementes von dem KĂŒhlkörper nicht mehr möglich und eventuell lediglich noch mit einem Werkzeug möglich ist.Thus, it can be ensured that a manual release of the fixing element of the heat sink is no longer possible and possibly only possible with a tool.
Bei einer konkreten AusfĂŒhrungsform ist vorgesehen, dass die Haltemittel zumindest einen, vorzugsweise abgeschrĂ€gten Zapfen und zumindest eine korrespondierende Vertiefung aufweisen.In a specific embodiment, it is provided that the holding means have at least one, preferably beveled pin and at least one corresponding recess.
Die Vertiefung ist vorzugsweise an dem KĂŒhlkörper vorgesehen, der Zapfen an dem Fixiermittel; durch die AbschrĂ€gung lĂ€sst sich der Zapfen in die Vertiefung schieben, verhakt dann dort, sodass das Fixierelement entgegen der Aufschieberichtung nicht mehr von dem KĂŒhlkörper herunter gezogen werden kann.The recess is preferably provided on the heat sink, the pin on the fixing means; by the bevel, the pin can slide into the depression, then hooked There, so that the fixing against the Aufschieberichtung can not be pulled down by the heat sink.
Bei einer besonders vorteilhaften AusfĂŒhrungsform ist vorgesehen, dass das Fixiermittel als Designblende ausgebildet ist, welche beispielsweise aus Kunststoff oder Blech gebildet ist.In a particularly advantageous embodiment, it is provided that the fixing means is designed as a design panel, which is formed for example of plastic or sheet metal.
Einerseits dient das Fixiermittel somit zum Befestigen des KĂŒhlkörpers und des LED-Lichtquellen-TrĂ€gers, andererseits können mit dem Fixiermittel dann auch Bereiche der Beleuchtungsvorrichtung, die visuell nicht zugĂ€nglich sein sollen, abgeschirmt werden.On the one hand, the fixing means thus serves to fasten the heat sink and the LED light source carrier, on the other hand, areas of the lighting device that are not to be visually accessible can then be screened with the fixing agent.
Von besonderem Vorteil hat sich die Erfindung erwiesen, wenn der Optikkörper als Reflektor ausgebildet ist.Of particular advantage, the invention has been found, when the optical body is designed as a reflector.
Bei einer konkreten AusfĂŒhrungsform der Erfindung ist die Beleuchtungsvorrichtung als Lichtmodul fĂŒr einen Fahrzeugscheinwerfer ausgebildet.In a specific embodiment of the invention, the lighting device is designed as a light module for a vehicle headlight.
Dabei kann das Lichtmodul ein Reflexionsmodul oder ein Projektionsmodul ist.In this case, the light module is a reflection module or a projection module.
Weiters wird die eingangs genannte Aufgabe noch mit einem Kraftfahrzeugscheinwerfer gelöst, welcher zumindest eine oben beschriebene Beleuchtungsvorrichtung aufweist.Furthermore, the object mentioned is still achieved with a motor vehicle headlight, which has at least one lighting device described above.
Im Folgenden ist die Erfindung an Hand der Zeichnung nÀher erörtert. In dieser zeigt
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Fig. 1 eine Explosionsdarstellung einer erfindungsgemĂ€Ăen Beleuchtungsvorrichtung, -
Fig. 2 den Optikkörper der Beleuchtungsvorrichtung aus Figur in einer perspektivischen Ansicht zusammen mit einem Lichtquellen-TrÀger vor dem Positionieren, -
Fig. 3 eine Ansicht des Optikkörpers zusammen mit einer schematischen Darstellung eines KĂŒhlkörpers von oben mit aufgesetztem Lichtquellen-TrĂ€ger, -
Fig. 4 eine perspektivische Ansicht des Optikkörpers mit aufgesetztem Lichtquellen-TrÀger, -
Fig. 5 die Anordnung aus mit zusĂ€tzlich aufgesetztem KĂŒhlkörper in einer perspektivischen Ansicht,Figur 4 -
Fig. 6 die Anordnung aus , zusÀtzlich mit dem Fixiermittel in angesetzter, aber noch nicht aufgeschobener Position in einer perspektivischen Ansicht,Figur 5 -
Fig. 7 die Anordnung aus , zusÀtzlich mit dem Fixiermittel in angesetzter, nun bereits aufgeschobener Position in einer perspektivischen Ansicht,Figur 5 -
Fig. 8 die Situation aus in einer Seitenansicht im Bereich des Fixiermittels,Figur 6 -
Fig. 9 die Situation ausFigur 7 in einer Seitenansicht im Bereich des Fixiermittels, -
Fig. 10 einen Vertikalschnitt entlang der Linie B-B ausFigur 9 , -
Fig. 11 eineBeleuchtungsvorrichtung aus Figur 1 in zusammengesetztem Zustand in einer Ansicht von Vorne, und -
Fig. 12 einen Schnitt entlang der Linie A-A ausFigur 11 .
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Fig. 1 an exploded view of a lighting device according to the invention, -
Fig. 2 the optical body of the lighting device of Figure in a perspective view together with a light source carrier before positioning, -
Fig. 3 a view of the optical body together with a schematic representation of a heat sink from above with attached light source carrier, -
Fig. 4 a perspective view of the optical body with attached light source carrier, -
Fig. 5 the arrangementFIG. 4 with additionally mounted heat sink in a perspective view, -
Fig. 6 the arrangementFIG. 5 additionally in a perspective view, with the fixing means in an attached but not yet deferred position, -
Fig. 7 the arrangementFIG. 5 , additionally with the fixing means in an attached, now already deferred position in a perspective view, -
Fig. 8 the situationFIG. 6 in a side view in the region of the fixative, -
Fig. 9 the situationFIG. 7 in a side view in the region of the fixative, -
Fig. 10 a vertical section along the line BBFIG. 9 . -
Fig. 11 a lighting deviceFIG. 1 in a composite state in a view from the front, and -
Fig. 12 a section along the line AAFIG. 11 ,
In dem konkreten Beispiel handelt es sich bei dem Optikkörper 3 um einen Reflektor 3, die Einkoppelstelle 3d ist als Ăffnung in dem Reflektor ausgebildet, ĂŒber welche die LED-Lichtquelle 2 ihr Licht auf die reflektierende FlĂ€che des Reflektors abstrahlen kann.In the specific example, the
Generell, also unabhÀngig von der Art des Optikkörpers gilt, dass ein oder mehrere LED-Lichtquellen vorgesehen sein können, wobei jede LED-Lichtquelle eine oder mehrere LEDs aufweisen kann. Vorzugsweise sind manchen oder alle der LED-Lichtquellen unabhÀngig voneinander ansteuerbar, d.h. ein-/ausschaltbar und gegebenenfalls auch dimmbar. Ebenso kann es weiters von Vorteil sein, wenn einzelne oder jede LED einer LED-Lichtquelle unabhÀngig ansteuerbar ist.In general, that is, irrespective of the type of optical body, one or more LED light sources can be provided, wherein each LED light source can have one or more LEDs. Preferably, some or all of the LED light sources are independently controllable, ie switched on / off and optionally also dimmable. Likewise, it may also be advantageous if individual or each LED of an LED light source can be controlled independently.
Weiters umfasst die Beleuchtungsvorrichtung einen LED-Lichtquellen-TrÀger 4, auf welchen die LED-Lichtquelle 2 befestigt ist. Bei dem TrÀger 4 handelt es sich in der Regel um eine LED-Platine.Furthermore, the lighting device comprises an LED
SchlieĂlich um fasst die Beleuchtungsvorrichtung 1 noch einen KĂŒhlkörper 5 zum AbfĂŒhren der von der LED-Lichtquelle 2 erzeugten WĂ€rme sowie einem Fixiermittel 6, dessen Funktion im Folgenden noch nĂ€her beschrieben wird.Finally, the
Bei einem Zusammenbau der Beleuchtungsvorrichtung 1 wird vorerst die LED-Platine 4 auf dem Optikkörper 3 positioniert und temporĂ€r fixiert und anschlieĂend der KĂŒhlkörper 5 auf dem Optikkörper 3 und der LED-Platin 4 positioniert und mit dem Fixiermittel 6 fixiert.In an assembly of the
In der gezeigten AusfĂŒhrungsform verfĂŒgt dabei der Optikkörper 3 ĂŒber zwei vorzugsweise parallele Stege bzw. Rippen 60, auf welchen der TrĂ€ger 4 aufliegt.In the embodiment shown, the
Dazu sind vorerst auf dem Optikkörper 3 Positioniermittel 3a, 3b, 3c zum Positionieren des LED-Lichtquellen-TrÀgers 4 vorgesehen.For this purpose, positioning means 3a, 3b, 3c for positioning the LED
Die Positioniermittel an dem Optikkörper 3 umfassen dabei zwei Dome 3a, welche einstĂŒckig mit dem Optikkörper 3 ausgebildet sind und von diesem parallel zueinander verlaufend abstehen. Die Dome 3a sind dabei - allgemein, also unabhĂ€ngig von der konkreten AusfĂŒhrungsform des Optikkörpers - vorzugsweise im Bereich der "Einkoppelstelle" angeordnet, im konkreten Beispiel also im Bereich der Ăffnung 3d des Reflektors 3. Optimal ist es, wenn die Dome 3a dabei symmetrisch um die Einkoppelstelle angeordnet sind.The positioning means on the
Weiters umfassen die Positioniermittel zwei Haltefedern 3b, welche wiederum vorzugsweise einstĂŒckig mit dem Optikkörper 3 ausgebildet sind.Furthermore, the positioning means comprise two retaining
Die
Um den TrĂ€ger 4 auf den Optikkörper 3 aufsetzen zu können, ist vorgesehen, dass der LED-Lichtquellen-TrĂ€ger 4 zwei - an einer Seite vorzugsweise offenen - Ausnehmungen 4a aufweist, welche die zugeordneten Dome 3a - in dem gezeigten Beispiel dreiseitig - umschlieĂen. Ăber die Ausnehmungen 4a ist der LED-Lichtquellen-TrĂ€ger 4 in die X-Richtung normal auf die Ausrichtung Z der Dome 3a positionierbar.In order to be able to place the
Die Ausnehmungen 4a sind also grundsĂ€tzlich derart angeordnet und ausgebildet, dass der LED-Lichtquellen-TrĂ€ger 4 mit den Ausnehmungen 4a in den Domen 3a eingefĂ€delt und anschlieĂend in Richtung des Optikkörpers 3 bewegt werden kann, wo der TrĂ€ger 4 schlieĂlich in die Haltefedern 3b hineingedrĂŒckt wird, so dass diese den TrĂ€ger mit den Ausnehmungen 4a gegen die Dome 3a drĂŒcken (siehe z.B.
Der TrÀger 4 ist auf diese Weise in der X-Richtung (zu den Koordinaten siehe
Weiters umfassen die Positioniermittel noch einen Positionierzapfen 3c, der an dem Optikkörper 3 angeordnet, vorzugsweise einstĂŒckig mit dem Optikkörper 3 ausgebildet ist, und der LED-Lichtquellen-TrĂ€ger 4 weist eine korrespondierende Ausnehmung 4b auf, mittels welcher der LED-Lichtquellen-TrĂ€ger 4 in der Y-Richtung an dem Optikkörper 3 positionierbar ist.Furthermore, the positioning means further comprise a
"Positionierbar" bedeutet dabei jeweils, dass in der jeweiligen Richtung (X, Y, ...) die Position des TrÀger etc. mit dem jeweiligen Bauteil (Dom, Zapfen, Haltefeder) festgelegt wird."Positionable" means in each case that in the respective direction (X, Y, ...), the position of the carrier, etc. with the respective component (dome, pin, retaining spring) is determined.
Vorzugsweise ist dabei der Positionierzapfen 3c zwischen den beiden Haltefedern 3b, am zweckmĂ€Ăigsten in der Mitte zwischen der Positionierzapfen 3c angeordnet.Preferably, the
Mit diesem Zapfen kann der TrÀger 4 also in der Y-Richtung, d.h. in horizontaler Richtung und normal auf die X-Richtung positioniert werden.With this pin, the
In einen nĂ€chsten Schritt wird der KĂŒhlkörper 5 an dem Optikkörper 3 positioniert, wozu Positioniermittel 31 fĂŒr den KĂŒhlkörpers 5 an dem Optikkörper 3 vorgesehen sind.In a next step, the
Die Positioniermittel fĂŒr den KĂŒhlkörper 5 sind bei der gezeigten AusfĂŒhrungsform als zwei Positionierausnehmungen 31 ausgebildet (siehe z.B. Figur lund 2), welche Positionierausnehmungen 31 auf dem Optikkörper 3 angeordnet, vorzugsweise mit diesem einstĂŒckig ausgebildet sind. Mit Vorteil verlaufen die beiden Positionierausnehmungen 31 parallel zueinander.The positioning means for the
Der KĂŒhlkörper 5 weist an einer dem Optikkörper 5 zugewandten Seite zwei zu den Positionierausnehmungen 31 korrespondierende Positionierrippen 30 auf, siehe z.B.
Der KĂŒhlkörper wird mit seinen Positionierrippen 30 in die Positionierausnehmungen 31 eingesetzt, sodass diese die Rippen 30 seitlich umgreifen, und so die Position des KĂŒhlkörpers quer zu der LĂ€ngserstreckung der Rippen definiert ist.The heat sink is inserted with its
AuĂerdem weist der KĂŒhlkörper 5 zwei Domöffnungen 5a auf, durch welche die Dome 3a beim Aufbringen des KĂŒhlkörpers 5 gesteckt werden. Dabei weisen die Dome 3a zwei Auflaufabschnitte 3a' auf, deren Funktion weiter unten noch erörtert wird, und die Domöffnungen 5a sind ausreichend groĂ dimensioniert, sodass die Dome 3a samt ihren Auflaufabschnitten 3a' durch sie durchgeschoben werden können. Die Auflaufabschnitte 3a' sind dabei mit ihrem jeweiligen Dom 3a vorzugsweise einstĂŒckig ausgebildet.In addition, the
Insbesondere ist es gĂŒnstig, wenn in vollstĂ€ndig durchgeschobenem Zustand der Dome 3a die Auflaufabschnitte 3a' in einem Abstand oberhalb der jeweiligen Domöffnung 5a liegen.In particular, it is favorable if, in the completely pushed-through state of the
Zum Fixieren des KĂŒhlkörpers 5 und somit des LED-Lichtquellen-TrĂ€gers 4 an dem Optikkörper 3 ist schlieĂlich noch ein Fixierelement 6 vorgesehen. Dieses Fixierelement 6 ist an dem Optikkörper 3 derart befestigbar, dass in befestigtem Zustand das Fixierelement 6 den KĂŒhlkörper 5 gegen den LED-Lichtquellen-TrĂ€ger 4 drĂŒckt, sodass dieser in seiner Position an dem Optikkörper 3 fixiert ist.For fixing the
Dabei hĂ€lt das Fixierelement 6 den KĂŒhlkörper 5 klemmend an dem Optikkörper 3. Dazu verfĂŒgt das Fixierelement 6 ĂŒber einen oder mehrere RĂŒckstellbereiche, welche bei einem Aufbringen, insbesondere einem Aufschieben des Fixierelementes 6 auf den Optikkörper 3 und KĂŒhlkörper 5 eine Klemmkraft ausĂŒben. Diese Klemmkraft drĂŒckt dabei den KĂŒhlkörper 5 gegen den LED-Lichtquellen-TrĂ€ger 4 und diesen gegen den Optikkörper 3, sodass der TrĂ€ger 4 in seiner wie oben beschrieben eingestellten, temporĂ€ren Position dauerhaft fixiert wird.In this case, the fixing
Durch das klemmende Fixieren mit dem Fixierelement 6 kann ein Anschrauben des TrĂ€ger und/oder KĂŒhlkörpers am Optikkörper vermieden werden, sodass der Optikkörper, insbesondere ein Reflektor, etwa ein Freiformreflektor, verzugsweise mit der oder den LED-Lichtquellen verbunden werden kann.By clamping fixing with the fixing
Der LED-LichtquellentrĂ€ger 4 ist dabei bereits vor dem Zusammenbau der Beleuchtungsvorrichtung 1 entsprechend genau mit der oder den LED-Lichtquellen 2 zu bestĂŒcken, ebenso ist der Optikkörper 3 entsprechend genau zu fertigen. Dadurch lĂ€sst sich die erfindungsgemÀà vorgestellte Beleuchtungsvorrichtung aber auch problemlos am Montageband fertigen, da ein Einstellen des Optikkörpers in Bezug auf die LED-Lichtquelle(n) am Montageband nicht mehr notwendig ist und daher die Beleuchtungsvorrichtung rasch und effizient gefertigt werden kann.In this case, the LED
Weiters von Vorteil ist, dass der KĂŒhlkörper bei der erfindungsgemĂ€Ăen Beleuchtungsvorrichtung aus der Toleranzkette herausfĂ€llt.Another advantage is that the heat sink falls out of the tolerance chain in the lighting device according to the invention.
Die oben erwĂ€hnten RĂŒckstellbereiche des Fixierelementes 6 - dabei handelt es sich um einen, zwei oder mehrere RĂŒckstellbereiche, die Anzahl entspricht vorzugsweise der Anzahl der Dome 3a - sind bei der gezeigten AusfĂŒhrungsform als (entsprechend der Anzahl von 2 Domen) genau zwei elastische Klammerabschnitte 6a ausgebildet, jeder Klammerabschitt 6a stellt einen RĂŒckstellbereich dar.The above-mentioned return areas of the fixing element 6 - which are one, two or more return areas, the number preferably corresponds to the number of
Die elastischen Klammerabschnitt 6a sind dabei insbesondere bzw. auf jeden Fall in Richtung der LĂ€ngserstreckung der Dome, also in Z-Richtung elastisch verformbar ausgebildet.The
Wie oben schon erwĂ€hnt, verfĂŒgt jeder Dom 3a in einem dem Optikkörper 3 abgewandten Bereich ĂŒber einen Auflaufabschnitt 3a' fĂŒr jeweils einen elastischen Klammerabschnitt 6a des Fixierelementes 6.As already mentioned above, each
Bei einem Aufschieben (
Auf diese Weise werden durch einfaches Aufschieben des Fixierelementes 6 von vorne auf den Optikkörper 3 mit ausgesetztem KĂŒhlkörper 5 der LED-Lichtquellen-TrĂ€ger 4 und der KĂŒhlkörper an dem Optikkörper dauerhaft fixiert.In this way, the LED
Bei einem Aufschieben des Fixierelementes 6, vorzugsweise von Vorne wie dargestellt, entgegen der Lichtaustrittsrichtung kommen, wie dies die
Durch die RĂŒckstellkraft der elastischen Abschnitte 6a werden somit die Bauteile Optikkörper 3 (ĂŒber die Dome 3a), KĂŒhlkörper 5 und LED-Lichtquellen-TrĂ€ger 4 aneinandergepresst und somit fixiert, ohne dass Schrauben in dem Optikkörper 3 angebracht werden mĂŒssen.By the restoring force of the
Der KĂŒhlkörper 5 weist zusĂ€tzlich zwei Anschlagzapfen 5b auf, welche vorzugsweise einstĂŒckig mit dem KĂŒhlkörper 5b ausgebildet sind, wobei der Anschlagzapfen 5b die Aufschiebebewegung des Fixierelementes 6 auf den KĂŒhlkörper 5 begrenzen.The
Mit dem Anschlagzapfen 5b wird ein Weiterschieben der Fixierelementes 6verhindert, der Anschlagzapfen 5b bildet somit einen Anschlag fĂŒr das Fixierelement 6, damit dieses in einer definierten X- Position zu den anderen Bauteilen bleibt.With the
Im Folgenden wird noch auf die
Somit kann sichergestellt werden, dass ein manuelles Lösen des Fixierelementes 6 von dem KĂŒhlkörper 5 nicht mehr möglich und eventuell lediglich noch mit einem Werkzeug möglich ist.Thus, it can be ensured that a manual release of the fixing
Bei der konkreten AusfĂŒhrungsform aus den Figuren ist vorgesehen, dass die Haltemittel zumindest einen, vorzugsweise abgeschrĂ€gten Zapfen 6' und zumindest eine korrespondierende Vertiefung 5' aufweisen.In the specific embodiment of the figures, it is provided that the holding means have at least one, preferably bevelled pin 6 'and at least one corresponding recess 5'.
Die Vertiefung 5' ist vorzugsweise an dem KĂŒhlkörper 5 vorgesehen, der Zapfen 6' an dem Fixiermittel; durch die AbschrĂ€gung lĂ€sst sich der Zapfen 6' in die Vertiefung 5' schieben, verhakt dann dort, sodass das Fixierelement entgegen der Aufschieberichtung nicht mehr von dem KĂŒhlkörper herunter gezogen werden kann.The recess 5 'is preferably provided on the
Bei einer besonders vorteilhaften AusfĂŒhrungsform wie in den Figuren dargestellt ist das Fixiermittel 6 als Designblende ausgebildet, welche beispielsweise aus Kunststoff oder Blech gebildet ist.In a particularly advantageous embodiment, as shown in the figures, the fixing means 6 is designed as a design panel, which is formed for example of plastic or sheet metal.
Einerseits dient in diesem Fall das Fixiermittel zum Befestigen des KĂŒhlkörpers und des LED-Lichtquellen-TrĂ€gers, andererseits können mit dem Fixiermittel dann auch Bereiche der Beleuchtungsvorrichtung, die visuell nicht zugĂ€nglich sein sollen, abgeschirmt werden.On the one hand serves in this case, the fixing means for fixing the heat sink and the LED light source carrier, on the other hand can be shielded with the fixing then also areas of the lighting device, which are not visually accessible.
Beispielsweise kann mit der Designblende 6 der KĂŒhlkörper 5 abgedeckt werden, sodass er von AuĂen im eingebauten Zustand der Beleuchtungsvorrichtung nicht sichtbar ist.For example, can be covered with the
Mit der vorliegenden Erfindung wird es somit möglich, einen LED-Lichtquellen-TrĂ€ger an einem Optikkörper, insbesondere einen Reflektor, beispielsweise einem Freiformreflektor ohne Schrauben zu befestigen, sodass am Optikkörper kein Drehmoment einwirkt. Es wird lediglich eine Zugkraft im Bereich der Dome aufgebracht, d.h. es wird lediglich ĂŒber die Dome eine Zugkraft in den Optikkörper eingeleitet.With the present invention, it is thus possible to attach an LED light source carrier to an optical body, in particular a reflector, for example a free-form reflector without screws, so that no torque acts on the optical body. It will merely applied a tensile force in the region of the dome, that is, it is only introduced via the dome, a tensile force in the optic body.
Claims (16)
- A lighting device (1) for a vehicle headlight, wherein said lighting device comprises:- at least one LED light source (2),- at least one light-shaping optical element (3), which is assigned to the at least one LED light source (2),- at least one LED light source support (4), on which the at least one LED light source (2) is secured,and wherein- at least two, preferably exactly two domes (3a) are arranged on the optical element (3),- positioning means (3a, 3b, 3c) for positioning the at least one LED light source support (4) are also provided on the optical element (3),- positioning means (31; 3a) for subsequently positioning a cooling element (5) are also provided on the optical element (3),- a fixing element (6) is also provided, which can be secured on the optical element (3) in such a manner that the fixing element (6) in the secured state presses the cooling element (5) against the LED light source support (4) so that the latter is fixed in its position on the optical element (3),- characterized in that the fixing element (6) has a number of elastic clip portions (6a), preferably exactly two, corresponding to the number of domes (3a),- and wherein each dome (3a) also has, in an area facing the object element (3), at least one run-on portion (3a') for each elastic clip portion (6a) of the fixing element (6), and wherein the elastic clip portions (6a) are pressed toward the optical element (3) when the fixing element (6) is pushed onto the optical element (3) or the cooling element (5) in a direction normal to the orientation (Z) of the domes (3a).
- The lighting device according to Claim 1, characterized in that the domes (3a) extend parallel to one another and out from the optical element (3).
- The lighting device according to Claim 1 or 2, characterized in that the domes (3a) are integrally formed with the optical element (3).
- The lighting device according to any one of Claims 1 to 3, characterized in that the optical element (3) has at least one, preferably two spring clips (3b), and wherein the positioning means for the LED light source support (4) comprise the at least two, preferably exactly two domes (3a) as well as the at least one, preferably exactly two spring clips (3b).
- The lighting device according to any one of Claims 1 to 4, characterized in that the LED light source support (4) has a number of notches (4a) corresponding to the number of domes (3a), by means of which the LED light source support (4) can be positioned in a direction (X) normal to the orientation (Z) of the domes (3a).
- The lighting device according to any one of Claims 1 to 5, characterized in that a positioning pin (3c) is also arranged on the optical element (3), preferably integrally formed with the optical element (3), and that the LED light source support (4) has a corresponding notch (4b), by means of which the LED light source support (4) can be positioned in a direction (Y) normal to the orientation of the domes (3a) .
- The lighting device according to any one of Claims 1 to 6, characterized in that the positioning means for the cooling element (5) comprise at least one, preferably two positioning notches (31) and/or positioning ribs, which is/are arranged on, preferably integrally formed with, the optical element (3), wherein the two positioning notches (31) and/or positioning ribs preferably run parallel to one another, and/or wherein the cooling element (5) preferably has, on a side facing the optical element (3), at least one, preferably exactly two positioning ribs (30) and/or positioning notches corresponding to the positioning notches (31) and/or positioning ribs.
- The lighting device according to any one of Claims 1 to 7, characterized in that the positioning means for the cooling element (5) are formed by the domes (3a) arranged on the optical element (3).
- The lighting device according to any one of Claims 1 to 8, characterized in that the cooling element (5) has a number of dome openings (5a) corresponding to the number of domes (3a), through which openings the domes (3a) are inserted.
- The lighting device according to any one of Claims 1 to 9, characterized in that the run-on portions (3a') are situated at a distance above the individual dome opening (5a) in the completely pushed-through state of the fixing element (6).
- The lighting device according to any one of Claims 1 to 10, characterized in that the cooling element (5) has at least one, preferably exactly two stop pins (5b), of which at least one stop pin (5b) is preferably integrally formed with the cooling element (5b), wherein said at least one stop pin (5b) limits the push-on movement of the fixing element (6) onto the cooling element (5).
- The lighting device according to any one of Claims 1 to 11, characterized in that the cooling element (5) and the fixing element (6) have retention means (5', 6'), which prevent a detachment of the fixing element (6) from the cooling element (5) in the pushed-on state, wherein the retention means preferably have at least one preferably chamfered pin (6') and at least one corresponding recess (5').
- The lighting device according to any one of Claims 1 to 12, characterized in that the fixing element (6) is configured as a design trim, which for example is made of plastic or sheet metal.
- The lighting device according to any one of Claims 1 to 13, characterized in that the optical element (3) is configured as a reflector.
- The lighting device according to any one of Claims 1 to 14, characterized in that said lighting device is configured as a light module for a vehicle headlight, wherein said light module is preferably a reflection module or a projection module.
- A vehicle headlight having at least one lighting device according to any one of Claims 1 to 15.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50365/2013A AT514403B1 (en) | 2013-05-29 | 2013-05-29 | Lighting device for a vehicle headlight and vehicle headlights |
PCT/AT2014/050126 WO2014190368A1 (en) | 2013-05-29 | 2014-05-27 | Lighting device for a vehicle headlight |
Publications (2)
Publication Number | Publication Date |
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EP3004724A1 EP3004724A1 (en) | 2016-04-13 |
EP3004724B1 true EP3004724B1 (en) | 2018-11-28 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14738354.1A Active EP3004724B1 (en) | 2013-05-29 | 2014-05-27 | Lighting device for a vehicle headlight |
Country Status (7)
Country | Link |
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US (1) | US9803825B2 (en) |
EP (1) | EP3004724B1 (en) |
JP (1) | JP6192814B2 (en) |
CN (1) | CN105452757B (en) |
AT (1) | AT514403B1 (en) |
ES (1) | ES2716273T3 (en) |
WO (1) | WO2014190368A1 (en) |
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JP6770347B2 (en) * | 2016-06-27 | 2020-10-14 | æ ȘćŒäŒç€Ÿć°çłžèŁœäœæ | Vehicle headlights |
DE102016113937A1 (en) | 2016-07-28 | 2018-02-01 | HELLA GmbH & Co. KGaA | Light module for a lighting device of a vehicle |
DE102016119792A1 (en) * | 2016-10-18 | 2018-04-19 | Automotive Lighting Reutlingen Gmbh | Method for arranging a circuit carrier and illumination device for a motor vehicle with a circuit carrier arranged according to this method |
DE102017104841A1 (en) * | 2017-03-08 | 2018-09-13 | HELLA GmbH & Co. KGaA | Lighting device for vehicles and assembly methods |
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JP7250936B2 (en) * | 2019-11-29 | 2023-04-03 | âČèŻâŒćâČèŠâŒâČèŠșâŒç§æïŒäžâČæ”·âŒïŒæéć Źćž | positioning jig and assembly, assembly method, carlight optical assembly, carlight module |
EP3872395A1 (en) * | 2020-02-27 | 2021-09-01 | HELLA Saturnus Slovenija d.o.o. | Light module of a motor vehicle lighting unit and method for assembling a light module of a motor vehicle |
BR202020024178Y1 (en) * | 2020-11-26 | 2022-04-05 | Mauricio Balbinot | Constructive arrangement in vehicle headlights |
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- 2014-05-27 ES ES14738354T patent/ES2716273T3/en active Active
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AT514403B1 (en) | 2015-06-15 |
ES2716273T3 (en) | 2019-06-11 |
CN105452757A (en) | 2016-03-30 |
WO2014190368A1 (en) | 2014-12-04 |
AT514403A1 (en) | 2014-12-15 |
EP3004724A1 (en) | 2016-04-13 |
JP2016524285A (en) | 2016-08-12 |
JP6192814B2 (en) | 2017-09-06 |
US20160131324A1 (en) | 2016-05-12 |
US9803825B2 (en) | 2017-10-31 |
CN105452757B (en) | 2019-03-12 |
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