EP3104074B1 - Positioning device of a led support on a support element and illumination or signalisation device comprising such a device - Google Patents

Positioning device of a led support on a support element and illumination or signalisation device comprising such a device Download PDF

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Publication number
EP3104074B1
EP3104074B1 EP16173773.9A EP16173773A EP3104074B1 EP 3104074 B1 EP3104074 B1 EP 3104074B1 EP 16173773 A EP16173773 A EP 16173773A EP 3104074 B1 EP3104074 B1 EP 3104074B1
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EP
European Patent Office
Prior art keywords
recess
diameter
support
light
projection
Prior art date
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Application number
EP16173773.9A
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German (de)
French (fr)
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EP3104074A1 (en
Inventor
Eric Mornet
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.)
Valeo Vision SAS
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Valeo Vision SAS
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Publication date
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Priority to EP18211054.4A priority Critical patent/EP3473925A1/en
Publication of EP3104074A1 publication Critical patent/EP3104074A1/en
Application granted granted Critical
Publication of EP3104074B1 publication Critical patent/EP3104074B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/19—Attachment of light sources or lamp holders
    • F21S43/195—Details of lamp holders, terminals or connectors
    • 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
    • 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]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • 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
    • 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
    • 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
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
    • 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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F21V19/0035—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources the fastening means being capable of simultaneously attaching of an other part, e.g. a housing portion or an optical component
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a device for positioning a light support of a light-emitting diode on a support element and a light module for lighting and / or signaling device comprising such a device.
  • a light module intended in particular for a motor vehicle as described in the patent document FR 3 010 488 , comprises a light source associated with a radiator fixed on a reflector, the radiator being disposed in contact with the light source for the dissipation of the radiation heat emitted by it during its activation.
  • the light source is disposed substantially at the focus of the reflector which is formed of several sectors of paraboloidal shape.
  • patent documents US 2010/008095 A1 , DE 10 2011 081 062 A1 , FR 3 012 575 A1 and US 2011/0234078 A1 disclose positioning devices of the prior art.
  • the light source advantageously comprises a light-emitting diode which is generally carried directly by a printed circuit board connected to a source of energy and to control means.
  • the positioning of the light source relative to the focus of the reflector is an operation that requires significant precision.
  • Such a positioning device poses the problem of being statically indeterminate. Indeed, such a positioning is done with more constraints than strictly necessary to maintain the correct position, in other words at least one degree of mobility of the printed circuit is deleted several times.
  • the invention proposes a device for positioning a light support of a light-emitting diode on a support element, ensuring precise positioning of the light support of a light-emitting diode on this support element, while requiring tolerances. manufacturing less and therefore easier to manufacture and less expensive.
  • the invention proposes a relative positioning device of two parts consisting of a light support of a light emitting diode and a support element of this light support, comprising two pairs of interlocking reliefs, each pair comprising at least a recess on a said piece and at least one projection referencing rounded shape, carried by the other said piece, each projection being intended to come, in the assembled position, each bearing on the bottom of the corresponding recess in one direction corresponding insertion device, said positioning device being isostatic.
  • At least one first recess arranged on an edge of the light support is semicircular, the second recess being of width greater than or equal to the diameter of this first recess, and said projections carried by the support element are semicircular in shape, at least one of the projections being of smaller diameter than the corresponding semicircular recess, the first projection being of the same diameter as said corresponding semicircular recess and the second projection being of a smaller diameter.
  • the invention also relates to a light module for lighting and / or signaling device of which said light support of a light-emitting diode is a printed circuit board, comprising such a device.
  • a reflector 1 of a light module has a reflective surface 2 surmounted by a seat L 3 adapted to receive a radiator 4 under which is fixed a support 5 of a light source not visible in these two figures.
  • the seat L 3 is composed of a receiving surface 7 of an outer face of the radiator 4 provided with the support 5 of the light source, and a referencing wall 8 extending substantially perpendicularly to the receiving surface 7.
  • the referencing wall 8 serves to position the radiator 4 and therefore also the support 5 with the light source, relative to the reflector.
  • the referencing wall 8 is adapted to cooperate with a support wall 9 disposed at one end of the radiator 4 and extending substantially perpendicular to the outer face thereof.
  • the radiator 4 comprises a radiator body 10 formed by a generally rectangular plate to which fins 11 are connected so as to extend on either side of the plate 10.
  • the radiator 4 provided with the support 5 of a light source is fixed on the seat 3 of the reflector 1 by fixing means.
  • These fixing means comprise an attachment hole 19 provided in the referencing wall 8 of the seat 3. This fixing hole 19 is aligned with an attachment hole 20 provided in the support wall 9 of the radiator 4, in order to receive a fixing member in the form of a screw for fixing the radiator 4 to the seat 3 of the reflector 1.
  • the light source is a light emitting diode fixed under the support 5 and the support 5 is a printed circuit board.
  • This device comprises two pairs of interlocking reliefs and more precisely each pair has a recess 5A, 5B on the printed circuit board 5 and a rounded referencing protrusion 3A, 3B, carried by the seat 3.
  • Each protrusion 3A, 3B is intended to come, in assembled position shown on the figures 4 and 5 each resting on the bottom of the recess 5A, 5B corresponding in an insertion direction F.
  • this positioning device is isostatic.
  • the recesses 5A, 5B are arranged on one edge of the printed circuit board 5 and the tangent to the bottom of one of the recesses is aligned with the tangent to the bottom of the other recess.
  • the tangents are, for example, parallel and offset.
  • the two recesses 5A, 5B are semicircular, of the same diameter, and the projections 3A, 3B carried by the seat 3 are semicircular in shape, a first projection 3B being of the same diameter as the corresponding semicircular recess 5B and the second projection 3A being of a smaller diameter.
  • the difference between the diameter of the second recess 5A and the diameter of the second projection 3A is greater or equal to 10% of the diameter of the second recess 5A.
  • the diameter of the second recess 5A is 3 mm and the diameter of the second projection 3A is 2 mm.
  • the invention also relates to variants of this first embodiment described.
  • the tangent to the bottom of one of the recesses may not be aligned with the tangent to the bottom of the other recess, the projections then being of different length adapted.
  • the projections may be arranged on the printed circuit board 5 and the recesses on the seat 3.
  • the second recess 5A may not be semicircular and may for example be rectangular in shape with a width greater than or equal to the diameter of the first recess 5B.
  • the isostatic character is ensured by the blocking of two degrees of freedom at the abutment of the first recess and protrusion 5B, 3B and the blocking of a single degree of freedom at the abutment of the second recess and projection 5A, 3A.
  • the relative positioning device of this printed circuit board 5 'and of the support element 3' comprises two pairs of interlocking reliefs and more precisely each pair has a recess 5'A, 5'B on the support 5 'and a projection of referencing with rounded shape 3'A, 3'B, carried by the support element 3 '.
  • Each projection 3'A, 3'B is intended to come each bearing on the bottom of the recess 5'A, 5'B corresponding in an insertion direction F '.
  • this positioning device is isostatic.
  • the recesses 5'A, 5'B each arranged on a corner of the light support 5 ' are in the form of a quarter circle and the projections 3'A, 3'B are of semicircular shape, of the same diameter as the corresponding recesses .
  • the distance d e perpendicular to the insertion direction F 'between the recesses 5'A, 5'B is less than the distance d s perpendicular to the insertion direction F' between the projections 3'A, 3'B.
  • the invention is not limited to the embodiments described above.
  • the invention relates to a relative positioning device of two parts consisting of a light support of a light emitting diode and a support element of this light support.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Led Device Packages (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Description

L'invention concerne un dispositif de positionnement d'un support lumineux d'une diode électroluminescente sur un élément support et un module lumineux pour dispositif d'éclairage et/ou de signalisation comportant un tel dispositif.The invention relates to a device for positioning a light support of a light-emitting diode on a support element and a light module for lighting and / or signaling device comprising such a device.

Un module lumineux destiné en particulier à un véhicule automobile, tel que décrit dans le document de brevet FR 3 010 488 , comprend une source de lumière associée à un radiateur fixé sur un réflecteur, le radiateur étant disposé au contact de la source de lumière pour la dissipation de la chaleur de radiation émise par celle-ci pendant son activation. La source de lumière est disposée sensiblement au foyer du réflecteur qui est formé de plusieurs secteurs de forme paraboloïdale. En outre, les documents de brevet US 2010/008095 A1 , DE 10 2011 081 062 A1 , FR 3 012 575 A1 et US 2011/0234078 A1 divulguent des dispositifs de positionnement de l'art antérieur.A light module intended in particular for a motor vehicle, as described in the patent document FR 3 010 488 , comprises a light source associated with a radiator fixed on a reflector, the radiator being disposed in contact with the light source for the dissipation of the radiation heat emitted by it during its activation. The light source is disposed substantially at the focus of the reflector which is formed of several sectors of paraboloidal shape. In addition, patent documents US 2010/008095 A1 , DE 10 2011 081 062 A1 , FR 3 012 575 A1 and US 2011/0234078 A1 disclose positioning devices of the prior art.

La source de lumière comprend avantageusement une diode électroluminescente qui est en général portée directement par une plaque de circuit imprimé relié à une source d'énergie et à des moyens de commande.The light source advantageously comprises a light-emitting diode which is generally carried directly by a printed circuit board connected to a source of energy and to control means.

Le positionnement de la source de lumière par rapport au foyer du réflecteur est une opération qui nécessite une précision importante.The positioning of the light source relative to the focus of the reflector is an operation that requires significant precision.

Pour réaliser ce positionnement, il est connu d'agencer sur un bord du circuit imprimé deux évidement demi-circulaires qui, lors de l'assemblage du corps du radiateur sur le réflecteur, viennent coopérer par emboîtement avec deux saillies de référencement prévues sur une paroi de référencement du déflecteur et présentant une forme arrondie demi-circulaire correspondante, évidements et forme arrondies étant sensiblement de même diamètre.To achieve this positioning, it is known to arrange on an edge of the printed circuit two semi-circular recesses which, during assembly of the body of the radiator on the reflector, cooperate by interlocking with two projection projections provided on a wall referencing the deflector and having a corresponding semicircular rounded shape, recesses and rounded shape being substantially the same diameter.

Un tel dispositif de positionnement pose le problème d'être hyperstatique. En effet, un tel positionnement se fait avec plus de contraintes que ce qui est strictement nécessaire pour le maintien en position correcte, autrement dit au moins un degré de mobilité du circuit imprimé est supprimé plusieurs fois.Such a positioning device poses the problem of being statically indeterminate. Indeed, such a positioning is done with more constraints than strictly necessary to maintain the correct position, in other words at least one degree of mobility of the printed circuit is deleted several times.

Il en résulte que la fabrication des évidements et des saillies coopérantes doit être effectuée avec des tolérances très réduites. Plus particulièrement, une imprécision de réalisation de la distance entre ces deux évidements a pour conséquence de déporter de façon trop importante le positionnement relatif du déflecteur et de la source de lumière.As a result, the manufacture of the recesses and co-operating protrusions must be carried out with very small tolerances. More particularly, an inaccuracy in achieving the distance between these two recesses has the consequence of deporting too much the relative positioning of the deflector and the light source.

Pour résoudre ce problème, l'invention propose un dispositif de positionnement d'un support lumineux d'une diode électroluminescente sur un élément support, assurant un positionnement précis du support lumineux d'une diode électroluminescente sur cet élément support, tout en nécessitant des tolérances de fabrication moindres et donc de fabrication plus aisée et moins coûteuse.To solve this problem, the invention proposes a device for positioning a light support of a light-emitting diode on a support element, ensuring precise positioning of the light support of a light-emitting diode on this support element, while requiring tolerances. manufacturing less and therefore easier to manufacture and less expensive.

Pour ce faire, l'invention propose un dispositif de positionnement relatif de deux pièces constituées d'un support lumineux d'une diode électroluminescente et un élément support de ce support lumineux, comprenant deux paires de reliefs d'emboîtement, chaque paire comportant au moins un évidement sur une dite pièce et au moins une saillie de référencement à forme arrondie, portée par l'autre dite pièce, chaque saillie étant destinée à venir, en position assemblée, chacune en appui sur le fond de l'évidement correspondant selon une direction d'insertion correspondante, ledit dispositif de positionnement étant isostatique. Au moins un premier évidement agencé sur un bord du support lumineux est demi-circulaire, le second évidement étant de largeur supérieure ou égale au diamètre de ce premier évidement, et lesdites saillies portées par l'élément support sont de forme demi-circulaire, au moins l'un des saillies étant de diamètre inférieur à l'évidement demi-circulaire correspondant, la première saillie étant de même diamètre que ledit évidement demi-circulaire correspondant et la seconde saillie étant d'un diamètre inférieur.To do this, the invention proposes a relative positioning device of two parts consisting of a light support of a light emitting diode and a support element of this light support, comprising two pairs of interlocking reliefs, each pair comprising at least a recess on a said piece and at least one projection referencing rounded shape, carried by the other said piece, each projection being intended to come, in the assembled position, each bearing on the bottom of the corresponding recess in one direction corresponding insertion device, said positioning device being isostatic. At least one first recess arranged on an edge of the light support is semicircular, the second recess being of width greater than or equal to the diameter of this first recess, and said projections carried by the support element are semicircular in shape, at least one of the projections being of smaller diameter than the corresponding semicircular recess, the first projection being of the same diameter as said corresponding semicircular recess and the second projection being of a smaller diameter.

Suivant des modes de réalisation particuliers, le dispositif comprend l'une ou plusieurs des caractéristiques suivantes, prise(s) isolément ou suivant toutes les combinaisons techniquement possibles :

  • la tangente au fond de l'un des évidements est parallèle, par exemple alignée, avec la tangente au fond de l'autre évidement ;
  • ledit second évidement est également demi-circulaire de diamètre égal au diamètre dudit premier évidement ;
  • la différence entre le diamètre dudit second évidement et le diamètre de ladite seconde saillie est supérieure ou égal à 10% du diamètre dudit second évidement ;
  • les deux évidements sont agencés chacun sur un coin du support lumineux et en forme de quart de cercle, lesdites saillies sont de forme demi-circulaires, de même diamètre que lesdits évidements correspondants ;
  • la distance perpendiculaire à ladite direction d'insertion entre lesdits évidements est inférieure à la distance perpendiculaire à ladite direction d'insertion entre lesdites saillies.
According to particular embodiments, the device comprises one or more of the following characteristics, taken in isolation or in any technically possible combination:
  • the tangent at the bottom of one of the recesses is parallel, for example aligned, with the tangent at the bottom of the other recess;
  • said second recess is also semicircular in diameter equal to the diameter of said first recess;
  • the difference between the diameter of said second recess and the diameter of said second projection is greater than or equal to 10% of the diameter of said second recess;
  • the two recesses are each arranged on a corner of the luminous support and in the form of a quarter circle, said projections are of semicircular shape, of the same diameter as said corresponding recesses;
  • the distance perpendicular to said direction of insertion between said recesses is less than the distance perpendicular to said direction of insertion between said projections.

L'invention concerne également un module lumineux pour dispositif d'éclairage et/ou de signalisation dont ledit support lumineux d'une diode électroluminescente est une plaque de circuit imprimé, comportant un tel dispositif.The invention also relates to a light module for lighting and / or signaling device of which said light support of a light-emitting diode is a printed circuit board, comprising such a device.

L'invention est décrite ci-après plus en détail à l'aide de figures représentant des modes de réalisation préférés de l'invention.

  • Les figures 1 et 2 sont des vues en perspective d'un module lumineux pour dispositif d'éclairage et/ou de signalisation conforme à un premier mode de réalisation de l'invention, en position de montage et en position montée.
  • Les figures 3 à 5 sont des vues partielles en perspective et de dessus d'un dispositif conforme à ce premier mode de réalisation de l'invention, en position d'assemblage et en position assemblée.
  • Les figures 6 et 7 sont des vues schématiques en perspective et de dessus d'un dispositif conforme à un second mode de réalisation de l'invention.
The invention is described below in more detail with the aid of figures representing preferred embodiments of the invention.
  • The figures 1 and 2 are perspective views of a light module for lighting and / or signaling device according to a first embodiment of the invention, in the mounting position and in the mounted position.
  • The Figures 3 to 5 are partial views in perspective and from above of a device according to this first embodiment of the invention, in the assembly position and in the assembled position.
  • The Figures 6 and 7 are schematic views in perspective and from above of a device according to a second embodiment of the invention.

Comme illustré sur les figure 1 et 2, un réflecteur 1 d'un module lumineux présente une surface réfléchissante 2 surmontée par un siège en L 3 adapté pour recevoir un radiateur 4 sous lequel est fixé un support 5 d'une source de lumière non visible sur ces deux figures.As illustrated on figure 1 and 2 , a reflector 1 of a light module has a reflective surface 2 surmounted by a seat L 3 adapted to receive a radiator 4 under which is fixed a support 5 of a light source not visible in these two figures.

Le siège en L 3 est composé d'une surface de réception 7 d'une face extérieure du radiateur 4 pourvu du support 5 de la source de lumière, et d'une paroi de référencement 8 s'étendant sensiblement perpendiculairement à la surface de réception 7. La paroi de référencement 8 sert au positionnement du radiateur 4 et par conséquent aussi du support 5 avec la source de lumière, par rapport au réflecteur.The seat L 3 is composed of a receiving surface 7 of an outer face of the radiator 4 provided with the support 5 of the light source, and a referencing wall 8 extending substantially perpendicularly to the receiving surface 7. The referencing wall 8 serves to position the radiator 4 and therefore also the support 5 with the light source, relative to the reflector.

Pour ce positionnement, la paroi de référencement 8 est apte à coopérer avec une paroi d'appui 9 disposée à l'une des extrémités du radiateur 4 et s'étendant sensiblement perpendiculairement à la face extérieure de celui-ci. Par ailleurs, le radiateur 4 comporte un corps de radiateur 10 formé par une plaque globalement rectangulaire à laquelle des ailettes 11 sont reliées de manière à s'étendre de part et d'autre de la plaque 10.For this positioning, the referencing wall 8 is adapted to cooperate with a support wall 9 disposed at one end of the radiator 4 and extending substantially perpendicular to the outer face thereof. Furthermore, the radiator 4 comprises a radiator body 10 formed by a generally rectangular plate to which fins 11 are connected so as to extend on either side of the plate 10.

Le radiateur 4 pourvu du support 5 d'une source de lumière est fixé sur le siège 3 du réflecteur 1 par des moyens de fixation. Ces moyens de fixation comprennent un trou de fixation 19 prévu dans la paroi de référencement 8 du siège 3. Ce trou de fixation 19 se trouve aligné sur un trou de fixation 20 prévu dans la paroi d'appui 9 du radiateur 4, afin de recevoir un organe de fixation sous forme d'une vis pour la fixation du radiateur 4 sur le siège 3 du réflecteur 1.The radiator 4 provided with the support 5 of a light source is fixed on the seat 3 of the reflector 1 by fixing means. These fixing means comprise an attachment hole 19 provided in the referencing wall 8 of the seat 3. This fixing hole 19 is aligned with an attachment hole 20 provided in the support wall 9 of the radiator 4, in order to receive a fixing member in the form of a screw for fixing the radiator 4 to the seat 3 of the reflector 1.

Comme visible sur les figures 3 à 5, où le radiateur n'est pas représenté, la source de lumière est une diode électroluminescente fixée sous le support 5 et ce support 5 est une plaque circuit imprimé.As visible on Figures 3 to 5 , where the radiator is not shown, the light source is a light emitting diode fixed under the support 5 and the support 5 is a printed circuit board.

Ce premier mode de réalisation du dispositif de positionnement relatif de cette plaque de circuit imprimé 5 et du siège 3 va maintenant être décrit en détail.This first embodiment of the relative positioning device of this printed circuit board 5 and the seat 3 will now be described in detail.

Ce dispositif comprend deux paires de reliefs d'emboîtement et plus précisément chaque paire comporte un évidement 5A, 5B sur la plaque de circuit imprimé 5 et une saillie de référencement à forme arrondie 3A, 3B, portée par le siège 3. Chaque saillie 3A, 3B est destinée à venir, en position assemblée représentée sur les figures 4 et 5, chacune en appui sur le fond de l'évidement 5A, 5B correspondant selon une direction d'insertion F.This device comprises two pairs of interlocking reliefs and more precisely each pair has a recess 5A, 5B on the printed circuit board 5 and a rounded referencing protrusion 3A, 3B, carried by the seat 3. Each protrusion 3A, 3B is intended to come, in assembled position shown on the figures 4 and 5 each resting on the bottom of the recess 5A, 5B corresponding in an insertion direction F.

Selon l'invention, ce dispositif de positionnement est isostatique.According to the invention, this positioning device is isostatic.

Les évidements 5A, 5B sont agencés sur un bord de la plaque de circuit imprimé 5 et la tangente au fond de l'un des évidements est alignée avec la tangente au fond de l'autre évidement. En variante, les tangentes sont par exemple parallèles et décalées.The recesses 5A, 5B are arranged on one edge of the printed circuit board 5 and the tangent to the bottom of one of the recesses is aligned with the tangent to the bottom of the other recess. As a variant, the tangents are, for example, parallel and offset.

Les deux évidements 5A, 5B sont demi-circulaires, de même diamètre, et les saillies 3A, 3B portées par le siège 3 sont de forme demi-circulaires, une première saillie 3B étant de même diamètre que l'évidement demi-circulaire correspondant 5B et la seconde saillie 3A étant d'un diamètre inférieur.The two recesses 5A, 5B are semicircular, of the same diameter, and the projections 3A, 3B carried by the seat 3 are semicircular in shape, a first projection 3B being of the same diameter as the corresponding semicircular recess 5B and the second projection 3A being of a smaller diameter.

Avantageusement, la différence entre le diamètre du second évidement 5A et le diamètre de la seconde saillie 3A est supérieure ou égale à 10% du diamètre du second évidement 5A. A titre d'exemple, le diamètre du second évidement 5A est de 3 mm et le diamètre de la seconde saillie 3A est de 2 mm.Advantageously, the difference between the diameter of the second recess 5A and the diameter of the second projection 3A is greater or equal to 10% of the diameter of the second recess 5A. For example, the diameter of the second recess 5A is 3 mm and the diameter of the second projection 3A is 2 mm.

L'invention concerne également des variantes à ce premier mode de réalisation décrit.The invention also relates to variants of this first embodiment described.

Par exemple, la tangente au fond de l'un des évidements peut ne pas être alignée avec la tangente au fond de l'autre évidement, les saillies étant alors de longueur différente adaptée.For example, the tangent to the bottom of one of the recesses may not be aligned with the tangent to the bottom of the other recess, the projections then being of different length adapted.

Par ailleurs, les saillies peuvent être agencés sur la plaque de circuit imprimé 5 et les évidements sur le siège 3.Moreover, the projections may be arranged on the printed circuit board 5 and the recesses on the seat 3.

Le second évidement 5A peut ne pas être demi-circulaire et être par exemple en forme de rectangle en étant de largeur supérieure ou égale au diamètre du premier évidement 5B. Le caractère isostatique est assuré par le blocage de deux degrés de liberté au niveau de la butée des premiers évidement et saillie 5B, 3B et le blocage d'un seul degré de liberté au niveau de la butée des seconds évidement et saillie 5A, 3A.The second recess 5A may not be semicircular and may for example be rectangular in shape with a width greater than or equal to the diameter of the first recess 5B. The isostatic character is ensured by the blocking of two degrees of freedom at the abutment of the first recess and protrusion 5B, 3B and the blocking of a single degree of freedom at the abutment of the second recess and projection 5A, 3A.

Un second mode de réalisation du dispositif de positionnement relatif de cette plaque de circuit imprimé 5 et du siège 3 va maintenant être décrit en détail.A second embodiment of the relative positioning device of this printed circuit board 5 and the seat 3 will now be described in detail.

Sur les figures 6 et 7 sont uniquement schématisés le support 5' lumineux d'une diode électroluminescente et l'élément support 3' de ce support lumineux.On the Figures 6 and 7 only the light support 5 'of a light-emitting diode and the support element 3' of this light support are schematized.

Le dispositif de positionnement relatif de cette plaque de circuit imprimé 5' et de l'élément support 3' comprend deux paires de reliefs d'emboîtement et plus précisément chaque paire comporte un évidement 5'A, 5'B sur le support 5' et une saillie de référencement à forme arrondie 3'A, 3'B, portée par l'élément support 3'. Chaque saillie 3'A, 3'B est destinée à venir chacune en appui sur le fond de l'évidement 5'A, 5'B correspondant selon une direction d'insertion F'.The relative positioning device of this printed circuit board 5 'and of the support element 3' comprises two pairs of interlocking reliefs and more precisely each pair has a recess 5'A, 5'B on the support 5 'and a projection of referencing with rounded shape 3'A, 3'B, carried by the support element 3 '. Each projection 3'A, 3'B is intended to come each bearing on the bottom of the recess 5'A, 5'B corresponding in an insertion direction F '.

Selon l'invention, ce dispositif de positionnement est isostatique.According to the invention, this positioning device is isostatic.

Les évidements 5'A, 5'B agencés chacun sur un coin du support lumineux 5' sont en forme de quart de cercle et les saillies 3'A, 3'B sont de forme demi-circulaire, de même diamètre que les évidements correspondants.The recesses 5'A, 5'B each arranged on a corner of the light support 5 'are in the form of a quarter circle and the projections 3'A, 3'B are of semicircular shape, of the same diameter as the corresponding recesses .

La distance de perpendiculaire à la direction d'insertion F' entre les évidements 5'A, 5'B est inférieure à la distance ds perpendiculaire à la direction d'insertion F' entre les saillies 3'A, 3'B.The distance d e perpendicular to the insertion direction F 'between the recesses 5'A, 5'B is less than the distance d s perpendicular to the insertion direction F' between the projections 3'A, 3'B.

L'invention n'est pas limitée aux modes de réalisation décrits plus haut. En particulier, de façon générale, l'invention concerne un dispositif de positionnement relatif de deux pièces constituées d'un support lumineux d'une diode électroluminescente et un élément support de ce support lumineux.The invention is not limited to the embodiments described above. In particular, in general, the invention relates to a relative positioning device of two parts consisting of a light support of a light emitting diode and a support element of this light support.

Claims (6)

  1. Device for relative positioning of two parts formed by a light support (5, 5') for a semiconductor light source and a support element (3, 3') of this light support, the device comprising two pairs of interlocking reliefs, each pair comprising at least one recess (5A, 5B, 5'A, 5'B) on said part and at least one locating projection (3A, 3B, 3'A, 3'B) with a rounded form, mounted on the other said part, each projection being intended to rest, in the assembled position, each one on the bottom of the corresponding recess in a corresponding direction of insertion, said positioning device being isostatic, characterized in that at least one first recess (5B) arranged on an edge of the light support is semicircular, the second recess (5A) having a width greater than or equal to the diameter of this first recess, and said projections mounted on the support element have a semicircular shape, at least one of the projections (3A, 3B) having a diameter smaller than the corresponding semicircular recess,
    the device being characterized in that the first projection (3B) has the same diameter as said corresponding semicircular recess (5B) and the second projection (3A) has a smaller diameter.
  2. Device according to the preceding claim, characterized in that the tangent to the bottom of one of the recesses (5A, 5B, 5'A, 5'B) is parallel to, for example aligned with, the tangent to the bottom of the other recess.
  3. Device according to either of the preceding claims, characterized in that said second recess (5A) is also semicircular with a diameter equal to the diameter of said first recess (5B).
  4. Device according to the preceding claim, characterized in that the difference between the diameter of said second recess (5A) and the diameter of said second projection (3A) is greater than or equal to 10% of the diameter of said second recess (5A).
  5. Light module for an illumination and/or signaling device comprising a device according to any one of the preceding claims.
  6. Headlamp of a motor vehicle designed to project a light beam of the dipped beam type, comprising a light module according to Claim 5.
EP16173773.9A 2015-06-11 2016-06-09 Positioning device of a led support on a support element and illumination or signalisation device comprising such a device Active EP3104074B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18211054.4A EP3473925A1 (en) 2015-06-11 2016-06-09 Device for positioning a light support of a light emitting diode on a supporting element and light module for lighting and/or signalling device comprising such a device

Applications Claiming Priority (1)

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FR1555334A FR3037381B1 (en) 2015-06-11 2015-06-11 DEVICE FOR POSITIONING A LIGHT SUPPORT OF A LIGHT-LUMINESCENT DIODE ON A SUPPORT ELEMENT AND LIGHT MODULE FOR A LIGHTING AND / OR SIGNALING DEVICE CONTAINING SUCH A DEVICE

Related Child Applications (2)

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EP18211054.4A Division-Into EP3473925A1 (en) 2015-06-11 2016-06-09 Device for positioning a light support of a light emitting diode on a supporting element and light module for lighting and/or signalling device comprising such a device
EP18211054.4A Division EP3473925A1 (en) 2015-06-11 2016-06-09 Device for positioning a light support of a light emitting diode on a supporting element and light module for lighting and/or signalling device comprising such a device

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EP3104074A1 EP3104074A1 (en) 2016-12-14
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EP16173773.9A Active EP3104074B1 (en) 2015-06-11 2016-06-09 Positioning device of a led support on a support element and illumination or signalisation device comprising such a device

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JP6968015B2 (en) * 2018-03-22 2021-11-17 三菱電機株式会社 Manufacturing method of in-vehicle lamps and in-vehicle lamps
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FR3037381B1 (en) 2021-02-19
US20160363285A1 (en) 2016-12-15
CN106247250B (en) 2020-05-22
EP3104074A1 (en) 2016-12-14
EP3473925A1 (en) 2019-04-24
US10107470B2 (en) 2018-10-23
FR3037381A1 (en) 2016-12-16
CN106247250A (en) 2016-12-21

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